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c906108c SS |
1 | /* Support routines for manipulating internal types for GDB. |
2 | Copyright (C) 1992, 93, 94, 95, 96, 1998 Free Software Foundation, Inc. | |
3 | Contributed by Cygnus Support, using pieces from other GDB modules. | |
4 | ||
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b JM |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include "gdb_string.h" | |
24 | #include "bfd.h" | |
25 | #include "symtab.h" | |
26 | #include "symfile.h" | |
27 | #include "objfiles.h" | |
28 | #include "gdbtypes.h" | |
29 | #include "expression.h" | |
30 | #include "language.h" | |
31 | #include "target.h" | |
32 | #include "value.h" | |
33 | #include "demangle.h" | |
34 | #include "complaints.h" | |
35 | #include "gdbcmd.h" | |
36 | ||
37 | /* These variables point to the objects | |
38 | representing the predefined C data types. */ | |
39 | ||
40 | struct type *builtin_type_void; | |
41 | struct type *builtin_type_char; | |
9e0b60a8 | 42 | struct type *builtin_type_true_char; |
c906108c SS |
43 | struct type *builtin_type_short; |
44 | struct type *builtin_type_int; | |
45 | struct type *builtin_type_long; | |
46 | struct type *builtin_type_long_long; | |
47 | struct type *builtin_type_signed_char; | |
48 | struct type *builtin_type_unsigned_char; | |
49 | struct type *builtin_type_unsigned_short; | |
50 | struct type *builtin_type_unsigned_int; | |
51 | struct type *builtin_type_unsigned_long; | |
52 | struct type *builtin_type_unsigned_long_long; | |
53 | struct type *builtin_type_float; | |
54 | struct type *builtin_type_double; | |
55 | struct type *builtin_type_long_double; | |
56 | struct type *builtin_type_complex; | |
57 | struct type *builtin_type_double_complex; | |
58 | struct type *builtin_type_string; | |
59 | struct type *builtin_type_int8; | |
60 | struct type *builtin_type_uint8; | |
61 | struct type *builtin_type_int16; | |
62 | struct type *builtin_type_uint16; | |
63 | struct type *builtin_type_int32; | |
64 | struct type *builtin_type_uint32; | |
65 | struct type *builtin_type_int64; | |
66 | struct type *builtin_type_uint64; | |
67 | struct type *builtin_type_bool; | |
917317f4 | 68 | struct type *builtin_type_v4sf; |
c2d11a7d JM |
69 | struct type *builtin_type_v4si; |
70 | struct type *builtin_type_v8qi; | |
71 | struct type *builtin_type_v4hi; | |
72 | struct type *builtin_type_v2si; | |
c906108c SS |
73 | |
74 | int opaque_type_resolution = 1; | |
75 | ||
76 | ||
c5aa993b JM |
77 | struct extra |
78 | { | |
79 | char str[128]; | |
80 | int len; | |
81 | }; /* maximum extention is 128! FIXME */ | |
c906108c SS |
82 | |
83 | static void add_name PARAMS ((struct extra *, char *)); | |
84 | static void add_mangled_type PARAMS ((struct extra *, struct type *)); | |
85 | #if 0 | |
86 | static void cfront_mangle_name PARAMS ((struct type *, int, int)); | |
87 | #endif | |
88 | static void print_bit_vector PARAMS ((B_TYPE *, int)); | |
89 | static void print_arg_types PARAMS ((struct type **, int)); | |
90 | static void dump_fn_fieldlists PARAMS ((struct type *, int)); | |
91 | static void print_cplus_stuff PARAMS ((struct type *, int)); | |
c5aa993b | 92 | static void virtual_base_list_aux PARAMS ((struct type * dclass)); |
7a292a7a | 93 | |
c906108c SS |
94 | |
95 | /* Alloc a new type structure and fill it with some defaults. If | |
96 | OBJFILE is non-NULL, then allocate the space for the type structure | |
97 | in that objfile's type_obstack. */ | |
98 | ||
99 | struct type * | |
100 | alloc_type (objfile) | |
101 | struct objfile *objfile; | |
102 | { | |
103 | register struct type *type; | |
104 | ||
105 | /* Alloc the structure and start off with all fields zeroed. */ | |
106 | ||
107 | if (objfile == NULL) | |
108 | { | |
c5aa993b | 109 | type = (struct type *) xmalloc (sizeof (struct type)); |
c906108c SS |
110 | } |
111 | else | |
112 | { | |
c5aa993b JM |
113 | type = (struct type *) obstack_alloc (&objfile->type_obstack, |
114 | sizeof (struct type)); | |
c906108c SS |
115 | OBJSTAT (objfile, n_types++); |
116 | } | |
117 | memset ((char *) type, 0, sizeof (struct type)); | |
118 | ||
119 | /* Initialize the fields that might not be zero. */ | |
120 | ||
121 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
122 | TYPE_OBJFILE (type) = objfile; | |
123 | TYPE_VPTR_FIELDNO (type) = -1; | |
c5aa993b | 124 | TYPE_CV_TYPE (type) = type; /* chain back to itself */ |
c906108c SS |
125 | |
126 | return (type); | |
127 | } | |
128 | ||
129 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points | |
130 | to a pointer to memory where the pointer type should be stored. | |
131 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
132 | We allocate new memory if needed. */ | |
133 | ||
134 | struct type * | |
135 | make_pointer_type (type, typeptr) | |
136 | struct type *type; | |
137 | struct type **typeptr; | |
138 | { | |
c5aa993b | 139 | register struct type *ntype; /* New type */ |
c906108c SS |
140 | struct objfile *objfile; |
141 | ||
142 | ntype = TYPE_POINTER_TYPE (type); | |
143 | ||
c5aa993b | 144 | if (ntype) |
c906108c | 145 | { |
c5aa993b JM |
146 | if (typeptr == 0) |
147 | return ntype; /* Don't care about alloc, and have new type. */ | |
c906108c | 148 | else if (*typeptr == 0) |
c5aa993b | 149 | { |
c906108c SS |
150 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ |
151 | return ntype; | |
c5aa993b | 152 | } |
c906108c SS |
153 | } |
154 | ||
155 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
156 | { | |
157 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
158 | if (typeptr) | |
159 | *typeptr = ntype; | |
160 | } | |
c5aa993b JM |
161 | else |
162 | /* We have storage, but need to reset it. */ | |
c906108c SS |
163 | { |
164 | ntype = *typeptr; | |
165 | objfile = TYPE_OBJFILE (ntype); | |
166 | memset ((char *) ntype, 0, sizeof (struct type)); | |
167 | TYPE_OBJFILE (ntype) = objfile; | |
168 | } | |
169 | ||
170 | TYPE_TARGET_TYPE (ntype) = type; | |
171 | TYPE_POINTER_TYPE (type) = ntype; | |
172 | ||
173 | /* FIXME! Assume the machine has only one representation for pointers! */ | |
174 | ||
175 | TYPE_LENGTH (ntype) = TARGET_PTR_BIT / TARGET_CHAR_BIT; | |
176 | TYPE_CODE (ntype) = TYPE_CODE_PTR; | |
177 | ||
178 | /* pointers are unsigned */ | |
179 | TYPE_FLAGS (ntype) |= TYPE_FLAG_UNSIGNED; | |
c5aa993b | 180 | |
c906108c SS |
181 | if (!TYPE_POINTER_TYPE (type)) /* Remember it, if don't have one. */ |
182 | TYPE_POINTER_TYPE (type) = ntype; | |
183 | ||
184 | return ntype; | |
185 | } | |
186 | ||
187 | /* Given a type TYPE, return a type of pointers to that type. | |
188 | May need to construct such a type if this is the first use. */ | |
189 | ||
190 | struct type * | |
191 | lookup_pointer_type (type) | |
192 | struct type *type; | |
193 | { | |
c5aa993b | 194 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
195 | } |
196 | ||
197 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, points | |
198 | to a pointer to memory where the reference type should be stored. | |
199 | If *TYPEPTR is zero, update it to point to the reference type we return. | |
200 | We allocate new memory if needed. */ | |
201 | ||
202 | struct type * | |
203 | make_reference_type (type, typeptr) | |
204 | struct type *type; | |
205 | struct type **typeptr; | |
206 | { | |
c5aa993b | 207 | register struct type *ntype; /* New type */ |
c906108c SS |
208 | struct objfile *objfile; |
209 | ||
210 | ntype = TYPE_REFERENCE_TYPE (type); | |
211 | ||
c5aa993b | 212 | if (ntype) |
c906108c | 213 | { |
c5aa993b JM |
214 | if (typeptr == 0) |
215 | return ntype; /* Don't care about alloc, and have new type. */ | |
c906108c | 216 | else if (*typeptr == 0) |
c5aa993b | 217 | { |
c906108c SS |
218 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ |
219 | return ntype; | |
c5aa993b | 220 | } |
c906108c SS |
221 | } |
222 | ||
223 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
224 | { | |
225 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
226 | if (typeptr) | |
227 | *typeptr = ntype; | |
228 | } | |
c5aa993b JM |
229 | else |
230 | /* We have storage, but need to reset it. */ | |
c906108c SS |
231 | { |
232 | ntype = *typeptr; | |
233 | objfile = TYPE_OBJFILE (ntype); | |
234 | memset ((char *) ntype, 0, sizeof (struct type)); | |
235 | TYPE_OBJFILE (ntype) = objfile; | |
236 | } | |
237 | ||
238 | TYPE_TARGET_TYPE (ntype) = type; | |
239 | TYPE_REFERENCE_TYPE (type) = ntype; | |
240 | ||
241 | /* FIXME! Assume the machine has only one representation for references, | |
242 | and that it matches the (only) representation for pointers! */ | |
243 | ||
244 | TYPE_LENGTH (ntype) = TARGET_PTR_BIT / TARGET_CHAR_BIT; | |
245 | TYPE_CODE (ntype) = TYPE_CODE_REF; | |
c5aa993b | 246 | |
c906108c SS |
247 | if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */ |
248 | TYPE_REFERENCE_TYPE (type) = ntype; | |
249 | ||
250 | return ntype; | |
251 | } | |
252 | ||
253 | /* Same as above, but caller doesn't care about memory allocation details. */ | |
254 | ||
255 | struct type * | |
256 | lookup_reference_type (type) | |
257 | struct type *type; | |
258 | { | |
c5aa993b | 259 | return make_reference_type (type, (struct type **) 0); |
c906108c SS |
260 | } |
261 | ||
262 | /* Lookup a function type that returns type TYPE. TYPEPTR, if nonzero, points | |
263 | to a pointer to memory where the function type should be stored. | |
264 | If *TYPEPTR is zero, update it to point to the function type we return. | |
265 | We allocate new memory if needed. */ | |
266 | ||
267 | struct type * | |
268 | make_function_type (type, typeptr) | |
269 | struct type *type; | |
270 | struct type **typeptr; | |
271 | { | |
c5aa993b | 272 | register struct type *ntype; /* New type */ |
c906108c SS |
273 | struct objfile *objfile; |
274 | ||
275 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
276 | { | |
277 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
278 | if (typeptr) | |
279 | *typeptr = ntype; | |
280 | } | |
c5aa993b JM |
281 | else |
282 | /* We have storage, but need to reset it. */ | |
c906108c SS |
283 | { |
284 | ntype = *typeptr; | |
285 | objfile = TYPE_OBJFILE (ntype); | |
286 | memset ((char *) ntype, 0, sizeof (struct type)); | |
287 | TYPE_OBJFILE (ntype) = objfile; | |
288 | } | |
289 | ||
290 | TYPE_TARGET_TYPE (ntype) = type; | |
291 | ||
292 | TYPE_LENGTH (ntype) = 1; | |
293 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
c5aa993b | 294 | |
c906108c SS |
295 | return ntype; |
296 | } | |
297 | ||
298 | ||
299 | /* Given a type TYPE, return a type of functions that return that type. | |
300 | May need to construct such a type if this is the first use. */ | |
301 | ||
302 | struct type * | |
303 | lookup_function_type (type) | |
304 | struct type *type; | |
305 | { | |
c5aa993b | 306 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
307 | } |
308 | ||
309 | ||
310 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
311 | one supplied except that it may have const or volatile attributes | |
312 | CNST is a flag for setting the const attribute | |
313 | VOLTL is a flag for setting the volatile attribute | |
314 | TYPE is the base type whose variant we are creating. | |
315 | TYPEPTR, if nonzero, points | |
316 | to a pointer to memory where the reference type should be stored. | |
317 | If *TYPEPTR is zero, update it to point to the reference type we return. | |
318 | We allocate new memory if needed. */ | |
319 | ||
320 | struct type * | |
321 | make_cv_type (cnst, voltl, type, typeptr) | |
322 | int cnst; | |
323 | int voltl; | |
324 | struct type *type; | |
325 | struct type **typeptr; | |
326 | { | |
c5aa993b JM |
327 | register struct type *ntype; /* New type */ |
328 | register struct type *tmp_type = type; /* tmp type */ | |
c906108c SS |
329 | struct objfile *objfile; |
330 | ||
331 | ntype = TYPE_CV_TYPE (type); | |
332 | ||
333 | while (ntype != type) | |
334 | { | |
335 | if ((TYPE_CONST (ntype) == cnst) && | |
c5aa993b JM |
336 | (TYPE_VOLATILE (ntype) == voltl)) |
337 | { | |
338 | if (typeptr == 0) | |
339 | return ntype; | |
340 | else if (*typeptr == 0) | |
341 | { | |
342 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ | |
343 | return ntype; | |
344 | } | |
345 | } | |
c906108c SS |
346 | tmp_type = ntype; |
347 | ntype = TYPE_CV_TYPE (ntype); | |
348 | } | |
349 | ||
350 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
351 | { | |
352 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
353 | if (typeptr) | |
354 | *typeptr = ntype; | |
355 | } | |
c5aa993b JM |
356 | else |
357 | /* We have storage, but need to reset it. */ | |
c906108c SS |
358 | { |
359 | ntype = *typeptr; | |
360 | objfile = TYPE_OBJFILE (ntype); | |
361 | /* memset ((char *) ntype, 0, sizeof (struct type)); */ | |
362 | TYPE_OBJFILE (ntype) = objfile; | |
363 | } | |
364 | ||
c5aa993b | 365 | /* Copy original type */ |
c906108c SS |
366 | memcpy ((char *) ntype, (char *) type, sizeof (struct type)); |
367 | /* But zero out fields that shouldn't be copied */ | |
c5aa993b JM |
368 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; /* Need new pointer kind */ |
369 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; /* Need new referene kind */ | |
c906108c SS |
370 | /* Note: TYPE_TARGET_TYPE can be left as is */ |
371 | ||
372 | /* Set flags appropriately */ | |
373 | if (cnst) | |
c5aa993b | 374 | TYPE_FLAGS (ntype) |= TYPE_FLAG_CONST; |
c906108c | 375 | else |
c5aa993b | 376 | TYPE_FLAGS (ntype) &= ~TYPE_FLAG_CONST; |
c906108c SS |
377 | |
378 | if (voltl) | |
c5aa993b | 379 | TYPE_FLAGS (ntype) |= TYPE_FLAG_VOLATILE; |
c906108c | 380 | else |
c5aa993b | 381 | TYPE_FLAGS (ntype) &= ~TYPE_FLAG_VOLATILE; |
c906108c SS |
382 | |
383 | /* Fix the chain of cv variants */ | |
384 | TYPE_CV_TYPE (ntype) = type; | |
385 | TYPE_CV_TYPE (tmp_type) = ntype; | |
386 | ||
387 | return ntype; | |
388 | } | |
389 | ||
390 | ||
391 | ||
392 | ||
393 | /* Implement direct support for MEMBER_TYPE in GNU C++. | |
394 | May need to construct such a type if this is the first use. | |
395 | The TYPE is the type of the member. The DOMAIN is the type | |
396 | of the aggregate that the member belongs to. */ | |
397 | ||
398 | struct type * | |
399 | lookup_member_type (type, domain) | |
400 | struct type *type; | |
401 | struct type *domain; | |
402 | { | |
403 | register struct type *mtype; | |
404 | ||
405 | mtype = alloc_type (TYPE_OBJFILE (type)); | |
406 | smash_to_member_type (mtype, domain, type); | |
407 | return (mtype); | |
408 | } | |
409 | ||
410 | /* Allocate a stub method whose return type is TYPE. | |
411 | This apparently happens for speed of symbol reading, since parsing | |
412 | out the arguments to the method is cpu-intensive, the way we are doing | |
413 | it. So, we will fill in arguments later. | |
414 | This always returns a fresh type. */ | |
415 | ||
416 | struct type * | |
417 | allocate_stub_method (type) | |
418 | struct type *type; | |
419 | { | |
420 | struct type *mtype; | |
421 | ||
422 | mtype = alloc_type (TYPE_OBJFILE (type)); | |
423 | TYPE_TARGET_TYPE (mtype) = type; | |
424 | /* _DOMAIN_TYPE (mtype) = unknown yet */ | |
425 | /* _ARG_TYPES (mtype) = unknown yet */ | |
426 | TYPE_FLAGS (mtype) = TYPE_FLAG_STUB; | |
427 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; | |
428 | TYPE_LENGTH (mtype) = 1; | |
429 | return (mtype); | |
430 | } | |
431 | ||
432 | /* Create a range type using either a blank type supplied in RESULT_TYPE, | |
433 | or creating a new type, inheriting the objfile from INDEX_TYPE. | |
434 | ||
435 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND to | |
436 | HIGH_BOUND, inclusive. | |
437 | ||
438 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
439 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
440 | ||
441 | struct type * | |
442 | create_range_type (result_type, index_type, low_bound, high_bound) | |
443 | struct type *result_type; | |
444 | struct type *index_type; | |
445 | int low_bound; | |
446 | int high_bound; | |
447 | { | |
448 | if (result_type == NULL) | |
449 | { | |
450 | result_type = alloc_type (TYPE_OBJFILE (index_type)); | |
451 | } | |
452 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; | |
453 | TYPE_TARGET_TYPE (result_type) = index_type; | |
454 | if (TYPE_FLAGS (index_type) & TYPE_FLAG_STUB) | |
455 | TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB; | |
456 | else | |
457 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
458 | TYPE_NFIELDS (result_type) = 2; | |
459 | TYPE_FIELDS (result_type) = (struct field *) | |
460 | TYPE_ALLOC (result_type, 2 * sizeof (struct field)); | |
461 | memset (TYPE_FIELDS (result_type), 0, 2 * sizeof (struct field)); | |
462 | TYPE_FIELD_BITPOS (result_type, 0) = low_bound; | |
463 | TYPE_FIELD_BITPOS (result_type, 1) = high_bound; | |
c5aa993b JM |
464 | TYPE_FIELD_TYPE (result_type, 0) = builtin_type_int; /* FIXME */ |
465 | TYPE_FIELD_TYPE (result_type, 1) = builtin_type_int; /* FIXME */ | |
c906108c | 466 | |
c5aa993b | 467 | if (low_bound >= 0) |
c906108c SS |
468 | TYPE_FLAGS (result_type) |= TYPE_FLAG_UNSIGNED; |
469 | ||
470 | return (result_type); | |
471 | } | |
472 | ||
473 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type TYPE. | |
474 | Return 1 of type is a range type, 0 if it is discrete (and bounds | |
475 | will fit in LONGEST), or -1 otherwise. */ | |
476 | ||
477 | int | |
478 | get_discrete_bounds (type, lowp, highp) | |
479 | struct type *type; | |
480 | LONGEST *lowp, *highp; | |
481 | { | |
482 | CHECK_TYPEDEF (type); | |
483 | switch (TYPE_CODE (type)) | |
484 | { | |
485 | case TYPE_CODE_RANGE: | |
486 | *lowp = TYPE_LOW_BOUND (type); | |
487 | *highp = TYPE_HIGH_BOUND (type); | |
488 | return 1; | |
489 | case TYPE_CODE_ENUM: | |
490 | if (TYPE_NFIELDS (type) > 0) | |
491 | { | |
492 | /* The enums may not be sorted by value, so search all | |
493 | entries */ | |
494 | int i; | |
495 | ||
496 | *lowp = *highp = TYPE_FIELD_BITPOS (type, 0); | |
497 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
498 | { | |
499 | if (TYPE_FIELD_BITPOS (type, i) < *lowp) | |
500 | *lowp = TYPE_FIELD_BITPOS (type, i); | |
501 | if (TYPE_FIELD_BITPOS (type, i) > *highp) | |
502 | *highp = TYPE_FIELD_BITPOS (type, i); | |
503 | } | |
504 | ||
505 | /* Set unsigned indicator if warranted. */ | |
c5aa993b | 506 | if (*lowp >= 0) |
c906108c SS |
507 | { |
508 | TYPE_FLAGS (type) |= TYPE_FLAG_UNSIGNED; | |
509 | } | |
510 | } | |
511 | else | |
512 | { | |
513 | *lowp = 0; | |
514 | *highp = -1; | |
515 | } | |
516 | return 0; | |
517 | case TYPE_CODE_BOOL: | |
518 | *lowp = 0; | |
519 | *highp = 1; | |
520 | return 0; | |
521 | case TYPE_CODE_INT: | |
c5aa993b | 522 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
523 | return -1; |
524 | if (!TYPE_UNSIGNED (type)) | |
525 | { | |
c5aa993b | 526 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
527 | *highp = -*lowp - 1; |
528 | return 0; | |
529 | } | |
530 | /* ... fall through for unsigned ints ... */ | |
531 | case TYPE_CODE_CHAR: | |
532 | *lowp = 0; | |
533 | /* This round-about calculation is to avoid shifting by | |
c5aa993b JM |
534 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
535 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ | |
c906108c SS |
536 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
537 | *highp = (*highp - 1) | *highp; | |
538 | return 0; | |
539 | default: | |
540 | return -1; | |
541 | } | |
542 | } | |
543 | ||
544 | /* Create an array type using either a blank type supplied in RESULT_TYPE, | |
545 | or creating a new type, inheriting the objfile from RANGE_TYPE. | |
546 | ||
547 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
548 | RANGE_TYPE. | |
549 | ||
550 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
551 | sure it is TYPE_CODE_UNDEF before we bash it into an array type? */ | |
552 | ||
553 | struct type * | |
554 | create_array_type (result_type, element_type, range_type) | |
555 | struct type *result_type; | |
556 | struct type *element_type; | |
557 | struct type *range_type; | |
558 | { | |
559 | LONGEST low_bound, high_bound; | |
560 | ||
561 | if (result_type == NULL) | |
562 | { | |
563 | result_type = alloc_type (TYPE_OBJFILE (range_type)); | |
564 | } | |
565 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; | |
566 | TYPE_TARGET_TYPE (result_type) = element_type; | |
567 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
568 | low_bound = high_bound = 0; | |
569 | CHECK_TYPEDEF (element_type); | |
570 | TYPE_LENGTH (result_type) = | |
571 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
572 | TYPE_NFIELDS (result_type) = 1; | |
573 | TYPE_FIELDS (result_type) = | |
574 | (struct field *) TYPE_ALLOC (result_type, sizeof (struct field)); | |
575 | memset (TYPE_FIELDS (result_type), 0, sizeof (struct field)); | |
576 | TYPE_FIELD_TYPE (result_type, 0) = range_type; | |
577 | TYPE_VPTR_FIELDNO (result_type) = -1; | |
578 | ||
579 | /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays */ | |
580 | if (TYPE_LENGTH (result_type) == 0) | |
581 | TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB; | |
582 | ||
583 | return (result_type); | |
584 | } | |
585 | ||
586 | /* Create a string type using either a blank type supplied in RESULT_TYPE, | |
587 | or creating a new type. String types are similar enough to array of | |
588 | char types that we can use create_array_type to build the basic type | |
589 | and then bash it into a string type. | |
590 | ||
591 | For fixed length strings, the range type contains 0 as the lower | |
592 | bound and the length of the string minus one as the upper bound. | |
593 | ||
594 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
595 | sure it is TYPE_CODE_UNDEF before we bash it into a string type? */ | |
596 | ||
597 | struct type * | |
598 | create_string_type (result_type, range_type) | |
599 | struct type *result_type; | |
600 | struct type *range_type; | |
601 | { | |
602 | result_type = create_array_type (result_type, | |
603 | *current_language->string_char_type, | |
604 | range_type); | |
605 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
606 | return (result_type); | |
607 | } | |
608 | ||
609 | struct type * | |
610 | create_set_type (result_type, domain_type) | |
611 | struct type *result_type; | |
612 | struct type *domain_type; | |
613 | { | |
614 | LONGEST low_bound, high_bound, bit_length; | |
615 | if (result_type == NULL) | |
616 | { | |
617 | result_type = alloc_type (TYPE_OBJFILE (domain_type)); | |
618 | } | |
619 | TYPE_CODE (result_type) = TYPE_CODE_SET; | |
620 | TYPE_NFIELDS (result_type) = 1; | |
621 | TYPE_FIELDS (result_type) = (struct field *) | |
622 | TYPE_ALLOC (result_type, 1 * sizeof (struct field)); | |
623 | memset (TYPE_FIELDS (result_type), 0, sizeof (struct field)); | |
624 | ||
c5aa993b | 625 | if (!(TYPE_FLAGS (domain_type) & TYPE_FLAG_STUB)) |
c906108c SS |
626 | { |
627 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) | |
628 | low_bound = high_bound = 0; | |
629 | bit_length = high_bound - low_bound + 1; | |
630 | TYPE_LENGTH (result_type) | |
631 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
632 | } | |
633 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
634 | ||
c5aa993b | 635 | if (low_bound >= 0) |
c906108c SS |
636 | TYPE_FLAGS (result_type) |= TYPE_FLAG_UNSIGNED; |
637 | ||
638 | return (result_type); | |
639 | } | |
640 | ||
917317f4 JM |
641 | |
642 | /* Construct and return a type of the form: | |
643 | struct NAME { ELT_TYPE ELT_NAME[N]; } | |
644 | We use these types for SIMD registers. For example, the type of | |
645 | the SSE registers on the late x86-family processors is: | |
646 | struct __builtin_v4sf { float f[4]; } | |
647 | built by the function call: | |
648 | init_simd_type ("__builtin_v4sf", builtin_type_float, "f", 4) | |
649 | The type returned is a permanent type, allocated using malloc; it | |
650 | doesn't live in any objfile's obstack. */ | |
c2d11a7d | 651 | static struct type * |
917317f4 JM |
652 | init_simd_type (char *name, |
653 | struct type *elt_type, | |
654 | char *elt_name, | |
655 | int n) | |
656 | { | |
657 | struct type *t; | |
658 | struct field *f; | |
659 | ||
660 | /* Build the field structure. */ | |
661 | f = xmalloc (sizeof (*f)); | |
662 | memset (f, 0, sizeof (*f)); | |
663 | f->loc.bitpos = 0; | |
664 | f->type = create_array_type (0, elt_type, | |
5c44784c JM |
665 | create_range_type (0, builtin_type_int, |
666 | 0, n-1)); | |
917317f4 JM |
667 | f->name = elt_name; |
668 | ||
669 | /* Build a struct type with that field. */ | |
670 | t = init_type (TYPE_CODE_STRUCT, n * TYPE_LENGTH (elt_type), 0, 0, 0); | |
671 | t->nfields = 1; | |
672 | t->fields = f; | |
673 | t->tag_name = name; | |
674 | ||
675 | return t; | |
676 | } | |
677 | ||
678 | ||
c906108c SS |
679 | /* Smash TYPE to be a type of members of DOMAIN with type TO_TYPE. |
680 | A MEMBER is a wierd thing -- it amounts to a typed offset into | |
681 | a struct, e.g. "an int at offset 8". A MEMBER TYPE doesn't | |
682 | include the offset (that's the value of the MEMBER itself), but does | |
683 | include the structure type into which it points (for some reason). | |
684 | ||
685 | When "smashing" the type, we preserve the objfile that the | |
686 | old type pointed to, since we aren't changing where the type is actually | |
687 | allocated. */ | |
688 | ||
689 | void | |
690 | smash_to_member_type (type, domain, to_type) | |
691 | struct type *type; | |
692 | struct type *domain; | |
693 | struct type *to_type; | |
694 | { | |
695 | struct objfile *objfile; | |
696 | ||
697 | objfile = TYPE_OBJFILE (type); | |
698 | ||
699 | memset ((char *) type, 0, sizeof (struct type)); | |
700 | TYPE_OBJFILE (type) = objfile; | |
701 | TYPE_TARGET_TYPE (type) = to_type; | |
702 | TYPE_DOMAIN_TYPE (type) = domain; | |
703 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ | |
704 | TYPE_CODE (type) = TYPE_CODE_MEMBER; | |
705 | } | |
706 | ||
707 | /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE. | |
708 | METHOD just means `function that gets an extra "this" argument'. | |
709 | ||
710 | When "smashing" the type, we preserve the objfile that the | |
711 | old type pointed to, since we aren't changing where the type is actually | |
712 | allocated. */ | |
713 | ||
714 | void | |
715 | smash_to_method_type (type, domain, to_type, args) | |
716 | struct type *type; | |
717 | struct type *domain; | |
718 | struct type *to_type; | |
719 | struct type **args; | |
720 | { | |
721 | struct objfile *objfile; | |
722 | ||
723 | objfile = TYPE_OBJFILE (type); | |
724 | ||
725 | memset ((char *) type, 0, sizeof (struct type)); | |
726 | TYPE_OBJFILE (type) = objfile; | |
727 | TYPE_TARGET_TYPE (type) = to_type; | |
728 | TYPE_DOMAIN_TYPE (type) = domain; | |
729 | TYPE_ARG_TYPES (type) = args; | |
730 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ | |
731 | TYPE_CODE (type) = TYPE_CODE_METHOD; | |
732 | } | |
733 | ||
734 | /* Return a typename for a struct/union/enum type without "struct ", | |
735 | "union ", or "enum ". If the type has a NULL name, return NULL. */ | |
736 | ||
737 | char * | |
738 | type_name_no_tag (type) | |
739 | register const struct type *type; | |
740 | { | |
741 | if (TYPE_TAG_NAME (type) != NULL) | |
742 | return TYPE_TAG_NAME (type); | |
743 | ||
744 | /* Is there code which expects this to return the name if there is no | |
745 | tag name? My guess is that this is mainly used for C++ in cases where | |
746 | the two will always be the same. */ | |
747 | return TYPE_NAME (type); | |
748 | } | |
749 | ||
750 | /* Lookup a primitive type named NAME. | |
c5aa993b | 751 | Return zero if NAME is not a primitive type. */ |
c906108c SS |
752 | |
753 | struct type * | |
754 | lookup_primitive_typename (name) | |
755 | char *name; | |
756 | { | |
c5aa993b JM |
757 | struct type **const *p; |
758 | ||
759 | for (p = current_language->la_builtin_type_vector; *p != NULL; p++) | |
760 | { | |
761 | if (STREQ ((**p)->name, name)) | |
762 | { | |
763 | return (**p); | |
764 | } | |
765 | } | |
766 | return (NULL); | |
c906108c SS |
767 | } |
768 | ||
769 | /* Lookup a typedef or primitive type named NAME, | |
770 | visible in lexical block BLOCK. | |
771 | If NOERR is nonzero, return zero if NAME is not suitably defined. */ | |
772 | ||
773 | struct type * | |
774 | lookup_typename (name, block, noerr) | |
775 | char *name; | |
776 | struct block *block; | |
777 | int noerr; | |
778 | { | |
779 | register struct symbol *sym; | |
780 | register struct type *tmp; | |
781 | ||
782 | sym = lookup_symbol (name, block, VAR_NAMESPACE, 0, (struct symtab **) NULL); | |
783 | if (sym == NULL || SYMBOL_CLASS (sym) != LOC_TYPEDEF) | |
784 | { | |
785 | tmp = lookup_primitive_typename (name); | |
786 | if (tmp) | |
787 | { | |
788 | return (tmp); | |
789 | } | |
790 | else if (!tmp && noerr) | |
791 | { | |
792 | return (NULL); | |
793 | } | |
794 | else | |
795 | { | |
796 | error ("No type named %s.", name); | |
797 | } | |
798 | } | |
799 | return (SYMBOL_TYPE (sym)); | |
800 | } | |
801 | ||
802 | struct type * | |
803 | lookup_unsigned_typename (name) | |
804 | char *name; | |
805 | { | |
806 | char *uns = alloca (strlen (name) + 10); | |
807 | ||
808 | strcpy (uns, "unsigned "); | |
809 | strcpy (uns + 9, name); | |
810 | return (lookup_typename (uns, (struct block *) NULL, 0)); | |
811 | } | |
812 | ||
813 | struct type * | |
814 | lookup_signed_typename (name) | |
815 | char *name; | |
816 | { | |
817 | struct type *t; | |
818 | char *uns = alloca (strlen (name) + 8); | |
819 | ||
820 | strcpy (uns, "signed "); | |
821 | strcpy (uns + 7, name); | |
822 | t = lookup_typename (uns, (struct block *) NULL, 1); | |
823 | /* If we don't find "signed FOO" just try again with plain "FOO". */ | |
824 | if (t != NULL) | |
825 | return t; | |
826 | return lookup_typename (name, (struct block *) NULL, 0); | |
827 | } | |
828 | ||
829 | /* Lookup a structure type named "struct NAME", | |
830 | visible in lexical block BLOCK. */ | |
831 | ||
832 | struct type * | |
833 | lookup_struct (name, block) | |
834 | char *name; | |
835 | struct block *block; | |
836 | { | |
837 | register struct symbol *sym; | |
838 | ||
839 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, | |
840 | (struct symtab **) NULL); | |
841 | ||
842 | if (sym == NULL) | |
843 | { | |
844 | error ("No struct type named %s.", name); | |
845 | } | |
846 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
847 | { | |
848 | error ("This context has class, union or enum %s, not a struct.", name); | |
849 | } | |
850 | return (SYMBOL_TYPE (sym)); | |
851 | } | |
852 | ||
853 | /* Lookup a union type named "union NAME", | |
854 | visible in lexical block BLOCK. */ | |
855 | ||
856 | struct type * | |
857 | lookup_union (name, block) | |
858 | char *name; | |
859 | struct block *block; | |
860 | { | |
861 | register struct symbol *sym; | |
c5aa993b | 862 | struct type *t; |
c906108c SS |
863 | |
864 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, | |
865 | (struct symtab **) NULL); | |
866 | ||
867 | if (sym == NULL) | |
868 | error ("No union type named %s.", name); | |
869 | ||
c5aa993b | 870 | t = SYMBOL_TYPE (sym); |
c906108c SS |
871 | |
872 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
873 | return (t); | |
874 | ||
875 | /* C++ unions may come out with TYPE_CODE_CLASS, but we look at | |
876 | * a further "declared_type" field to discover it is really a union. | |
877 | */ | |
c5aa993b JM |
878 | if (HAVE_CPLUS_STRUCT (t)) |
879 | if (TYPE_DECLARED_TYPE (t) == DECLARED_TYPE_UNION) | |
c906108c SS |
880 | return (t); |
881 | ||
882 | /* If we get here, it's not a union */ | |
883 | error ("This context has class, struct or enum %s, not a union.", name); | |
884 | } | |
885 | ||
886 | ||
887 | /* Lookup an enum type named "enum NAME", | |
888 | visible in lexical block BLOCK. */ | |
889 | ||
890 | struct type * | |
891 | lookup_enum (name, block) | |
892 | char *name; | |
893 | struct block *block; | |
894 | { | |
895 | register struct symbol *sym; | |
896 | ||
c5aa993b | 897 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, |
c906108c SS |
898 | (struct symtab **) NULL); |
899 | if (sym == NULL) | |
900 | { | |
901 | error ("No enum type named %s.", name); | |
902 | } | |
903 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
904 | { | |
905 | error ("This context has class, struct or union %s, not an enum.", name); | |
906 | } | |
907 | return (SYMBOL_TYPE (sym)); | |
908 | } | |
909 | ||
910 | /* Lookup a template type named "template NAME<TYPE>", | |
911 | visible in lexical block BLOCK. */ | |
912 | ||
913 | struct type * | |
914 | lookup_template_type (name, type, block) | |
915 | char *name; | |
916 | struct type *type; | |
917 | struct block *block; | |
918 | { | |
919 | struct symbol *sym; | |
c5aa993b | 920 | char *nam = (char *) alloca (strlen (name) + strlen (type->name) + 4); |
c906108c SS |
921 | strcpy (nam, name); |
922 | strcat (nam, "<"); | |
923 | strcat (nam, type->name); | |
c5aa993b | 924 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 925 | |
c5aa993b | 926 | sym = lookup_symbol (nam, block, VAR_NAMESPACE, 0, (struct symtab **) NULL); |
c906108c SS |
927 | |
928 | if (sym == NULL) | |
929 | { | |
930 | error ("No template type named %s.", name); | |
931 | } | |
932 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
933 | { | |
934 | error ("This context has class, union or enum %s, not a struct.", name); | |
935 | } | |
936 | return (SYMBOL_TYPE (sym)); | |
937 | } | |
938 | ||
939 | /* Given a type TYPE, lookup the type of the component of type named NAME. | |
940 | ||
941 | TYPE can be either a struct or union, or a pointer or reference to a struct or | |
942 | union. If it is a pointer or reference, its target type is automatically used. | |
943 | Thus '.' and '->' are interchangable, as specified for the definitions of the | |
944 | expression element types STRUCTOP_STRUCT and STRUCTOP_PTR. | |
945 | ||
946 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
947 | If NAME is the name of a baseclass type, return that type. */ | |
948 | ||
949 | struct type * | |
950 | lookup_struct_elt_type (type, name, noerr) | |
951 | struct type *type; | |
952 | char *name; | |
c5aa993b | 953 | int noerr; |
c906108c SS |
954 | { |
955 | int i; | |
956 | ||
957 | for (;;) | |
958 | { | |
959 | CHECK_TYPEDEF (type); | |
960 | if (TYPE_CODE (type) != TYPE_CODE_PTR | |
961 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
962 | break; | |
963 | type = TYPE_TARGET_TYPE (type); | |
964 | } | |
965 | ||
966 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT && | |
967 | TYPE_CODE (type) != TYPE_CODE_UNION) | |
968 | { | |
969 | target_terminal_ours (); | |
970 | gdb_flush (gdb_stdout); | |
971 | fprintf_unfiltered (gdb_stderr, "Type "); | |
972 | type_print (type, "", gdb_stderr, -1); | |
973 | error (" is not a structure or union type."); | |
974 | } | |
975 | ||
976 | #if 0 | |
977 | /* FIXME: This change put in by Michael seems incorrect for the case where | |
978 | the structure tag name is the same as the member name. I.E. when doing | |
979 | "ptype bell->bar" for "struct foo { int bar; int foo; } bell;" | |
980 | Disabled by fnf. */ | |
981 | { | |
982 | char *typename; | |
983 | ||
984 | typename = type_name_no_tag (type); | |
985 | if (typename != NULL && STREQ (typename, name)) | |
986 | return type; | |
987 | } | |
988 | #endif | |
989 | ||
990 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
991 | { | |
992 | char *t_field_name = TYPE_FIELD_NAME (type, i); | |
993 | ||
994 | if (t_field_name && STREQ (t_field_name, name)) | |
995 | { | |
996 | return TYPE_FIELD_TYPE (type, i); | |
997 | } | |
998 | } | |
999 | ||
1000 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1001 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1002 | { | |
1003 | struct type *t; | |
1004 | ||
1005 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, noerr); | |
1006 | if (t != NULL) | |
1007 | { | |
1008 | return t; | |
1009 | } | |
1010 | } | |
1011 | ||
1012 | if (noerr) | |
1013 | { | |
1014 | return NULL; | |
1015 | } | |
c5aa993b | 1016 | |
c906108c SS |
1017 | target_terminal_ours (); |
1018 | gdb_flush (gdb_stdout); | |
1019 | fprintf_unfiltered (gdb_stderr, "Type "); | |
1020 | type_print (type, "", gdb_stderr, -1); | |
1021 | fprintf_unfiltered (gdb_stderr, " has no component named "); | |
1022 | fputs_filtered (name, gdb_stderr); | |
1023 | error ("."); | |
c5aa993b | 1024 | return (struct type *) -1; /* For lint */ |
c906108c SS |
1025 | } |
1026 | ||
1027 | /* If possible, make the vptr_fieldno and vptr_basetype fields of TYPE | |
1028 | valid. Callers should be aware that in some cases (for example, | |
1029 | the type or one of its baseclasses is a stub type and we are | |
1030 | debugging a .o file), this function will not be able to find the virtual | |
1031 | function table pointer, and vptr_fieldno will remain -1 and vptr_basetype | |
1032 | will remain NULL. */ | |
1033 | ||
1034 | void | |
1035 | fill_in_vptr_fieldno (type) | |
1036 | struct type *type; | |
1037 | { | |
1038 | CHECK_TYPEDEF (type); | |
1039 | ||
1040 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1041 | { | |
1042 | int i; | |
1043 | ||
1044 | /* We must start at zero in case the first (and only) baseclass is | |
c5aa993b | 1045 | virtual (and hence we cannot share the table pointer). */ |
c906108c SS |
1046 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1047 | { | |
1048 | fill_in_vptr_fieldno (TYPE_BASECLASS (type, i)); | |
1049 | if (TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type, i)) >= 0) | |
1050 | { | |
1051 | TYPE_VPTR_FIELDNO (type) | |
1052 | = TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type, i)); | |
1053 | TYPE_VPTR_BASETYPE (type) | |
1054 | = TYPE_VPTR_BASETYPE (TYPE_BASECLASS (type, i)); | |
1055 | break; | |
1056 | } | |
1057 | } | |
1058 | } | |
1059 | } | |
1060 | ||
1061 | /* Find the method and field indices for the destructor in class type T. | |
1062 | Return 1 if the destructor was found, otherwise, return 0. */ | |
1063 | ||
1064 | int | |
1065 | get_destructor_fn_field (t, method_indexp, field_indexp) | |
1066 | struct type *t; | |
1067 | int *method_indexp; | |
1068 | int *field_indexp; | |
1069 | { | |
1070 | int i; | |
1071 | ||
1072 | for (i = 0; i < TYPE_NFN_FIELDS (t); i++) | |
1073 | { | |
1074 | int j; | |
1075 | struct fn_field *f = TYPE_FN_FIELDLIST1 (t, i); | |
1076 | ||
1077 | for (j = 0; j < TYPE_FN_FIELDLIST_LENGTH (t, i); j++) | |
1078 | { | |
1079 | if (DESTRUCTOR_PREFIX_P (TYPE_FN_FIELD_PHYSNAME (f, j))) | |
1080 | { | |
1081 | *method_indexp = i; | |
1082 | *field_indexp = j; | |
1083 | return 1; | |
1084 | } | |
1085 | } | |
1086 | } | |
1087 | return 0; | |
1088 | } | |
1089 | ||
1090 | /* Added by Bryan Boreham, Kewill, Sun Sep 17 18:07:17 1989. | |
1091 | ||
1092 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
1093 | we can find a full definition in some other file. If so, copy this | |
1094 | definition, so we can use it in future. There used to be a comment (but | |
1095 | not any code) that if we don't find a full definition, we'd set a flag | |
1096 | so we don't spend time in the future checking the same type. That would | |
1097 | be a mistake, though--we might load in more symbols which contain a | |
1098 | full definition for the type. | |
1099 | ||
1100 | This used to be coded as a macro, but I don't think it is called | |
1101 | often enough to merit such treatment. */ | |
1102 | ||
1103 | struct complaint stub_noname_complaint = | |
c5aa993b | 1104 | {"stub type has NULL name", 0, 0}; |
c906108c SS |
1105 | |
1106 | struct type * | |
1107 | check_typedef (type) | |
1108 | register struct type *type; | |
1109 | { | |
1110 | struct type *orig_type = type; | |
1111 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) | |
1112 | { | |
1113 | if (!TYPE_TARGET_TYPE (type)) | |
1114 | { | |
c5aa993b | 1115 | char *name; |
c906108c SS |
1116 | struct symbol *sym; |
1117 | ||
1118 | /* It is dangerous to call lookup_symbol if we are currently | |
1119 | reading a symtab. Infinite recursion is one danger. */ | |
1120 | if (currently_reading_symtab) | |
1121 | return type; | |
1122 | ||
1123 | name = type_name_no_tag (type); | |
1124 | /* FIXME: shouldn't we separately check the TYPE_NAME and the | |
1125 | TYPE_TAG_NAME, and look in STRUCT_NAMESPACE and/or VAR_NAMESPACE | |
1126 | as appropriate? (this code was written before TYPE_NAME and | |
1127 | TYPE_TAG_NAME were separate). */ | |
1128 | if (name == NULL) | |
1129 | { | |
1130 | complain (&stub_noname_complaint); | |
1131 | return type; | |
1132 | } | |
c5aa993b | 1133 | sym = lookup_symbol (name, 0, STRUCT_NAMESPACE, 0, |
c906108c SS |
1134 | (struct symtab **) NULL); |
1135 | if (sym) | |
1136 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
1137 | else | |
c5aa993b | 1138 | TYPE_TARGET_TYPE (type) = alloc_type (NULL); /* TYPE_CODE_UNDEF */ |
c906108c SS |
1139 | } |
1140 | type = TYPE_TARGET_TYPE (type); | |
1141 | } | |
1142 | ||
1143 | /* If this is a struct/class/union with no fields, then check whether a | |
1144 | full definition exists somewhere else. This is for systems where a | |
1145 | type definition with no fields is issued for such types, instead of | |
c5aa993b JM |
1146 | identifying them as stub types in the first place */ |
1147 | ||
c906108c SS |
1148 | if (TYPE_IS_OPAQUE (type) && opaque_type_resolution && !currently_reading_symtab) |
1149 | { | |
c5aa993b JM |
1150 | char *name = type_name_no_tag (type); |
1151 | struct type *newtype; | |
c906108c SS |
1152 | if (name == NULL) |
1153 | { | |
1154 | complain (&stub_noname_complaint); | |
1155 | return type; | |
1156 | } | |
1157 | newtype = lookup_transparent_type (name); | |
1158 | if (newtype) | |
1159 | { | |
1160 | memcpy ((char *) type, (char *) newtype, sizeof (struct type)); | |
1161 | } | |
1162 | } | |
1163 | /* Otherwise, rely on the stub flag being set for opaque/stubbed types */ | |
c5aa993b | 1164 | else if ((TYPE_FLAGS (type) & TYPE_FLAG_STUB) && !currently_reading_symtab) |
c906108c | 1165 | { |
c5aa993b | 1166 | char *name = type_name_no_tag (type); |
c906108c | 1167 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
c5aa993b JM |
1168 | TYPE_TAG_NAME, and look in STRUCT_NAMESPACE and/or VAR_NAMESPACE |
1169 | as appropriate? (this code was written before TYPE_NAME and | |
1170 | TYPE_TAG_NAME were separate). */ | |
c906108c SS |
1171 | struct symbol *sym; |
1172 | if (name == NULL) | |
1173 | { | |
1174 | complain (&stub_noname_complaint); | |
1175 | return type; | |
1176 | } | |
1177 | sym = lookup_symbol (name, 0, STRUCT_NAMESPACE, 0, (struct symtab **) NULL); | |
1178 | if (sym) | |
1179 | { | |
c5aa993b | 1180 | memcpy ((char *) type, (char *) SYMBOL_TYPE (sym), sizeof (struct type)); |
c906108c SS |
1181 | } |
1182 | } | |
1183 | ||
1184 | if (TYPE_FLAGS (type) & TYPE_FLAG_TARGET_STUB) | |
1185 | { | |
1186 | struct type *range_type; | |
1187 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1188 | ||
1189 | if (TYPE_FLAGS (target_type) & (TYPE_FLAG_STUB | TYPE_FLAG_TARGET_STUB)) | |
c5aa993b JM |
1190 | { |
1191 | } | |
c906108c SS |
1192 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY |
1193 | && TYPE_NFIELDS (type) == 1 | |
1194 | && (TYPE_CODE (range_type = TYPE_FIELD_TYPE (type, 0)) | |
1195 | == TYPE_CODE_RANGE)) | |
1196 | { | |
1197 | /* Now recompute the length of the array type, based on its | |
1198 | number of elements and the target type's length. */ | |
1199 | TYPE_LENGTH (type) = | |
1200 | ((TYPE_FIELD_BITPOS (range_type, 1) | |
1201 | - TYPE_FIELD_BITPOS (range_type, 0) | |
1202 | + 1) | |
1203 | * TYPE_LENGTH (target_type)); | |
1204 | TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB; | |
1205 | } | |
1206 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) | |
1207 | { | |
1208 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
1209 | TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB; | |
1210 | } | |
1211 | } | |
1212 | /* Cache TYPE_LENGTH for future use. */ | |
1213 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); | |
1214 | return type; | |
1215 | } | |
1216 | ||
1217 | /* New code added to support parsing of Cfront stabs strings */ | |
1218 | #include <ctype.h> | |
1219 | #define INIT_EXTRA { pextras->len=0; pextras->str[0]='\0'; } | |
1220 | #define ADD_EXTRA(c) { pextras->str[pextras->len++]=c; } | |
1221 | ||
c5aa993b JM |
1222 | static void |
1223 | add_name (pextras, n) | |
1224 | struct extra *pextras; | |
1225 | char *n; | |
c906108c SS |
1226 | { |
1227 | int nlen; | |
1228 | ||
c5aa993b | 1229 | if ((nlen = (n ? strlen (n) : 0)) == 0) |
c906108c | 1230 | return; |
c5aa993b JM |
1231 | sprintf (pextras->str + pextras->len, "%d%s", nlen, n); |
1232 | pextras->len = strlen (pextras->str); | |
c906108c SS |
1233 | } |
1234 | ||
c5aa993b JM |
1235 | static void |
1236 | add_mangled_type (pextras, t) | |
1237 | struct extra *pextras; | |
1238 | struct type *t; | |
c906108c SS |
1239 | { |
1240 | enum type_code tcode; | |
1241 | int tlen, tflags; | |
c5aa993b | 1242 | char *tname; |
c906108c | 1243 | |
c5aa993b JM |
1244 | tcode = TYPE_CODE (t); |
1245 | tlen = TYPE_LENGTH (t); | |
1246 | tflags = TYPE_FLAGS (t); | |
1247 | tname = TYPE_NAME (t); | |
c906108c SS |
1248 | /* args of "..." seem to get mangled as "e" */ |
1249 | ||
c5aa993b JM |
1250 | switch (tcode) |
1251 | { | |
1252 | case TYPE_CODE_INT: | |
1253 | if (tflags == 1) | |
1254 | ADD_EXTRA ('U'); | |
1255 | switch (tlen) | |
1256 | { | |
1257 | case 1: | |
1258 | ADD_EXTRA ('c'); | |
1259 | break; | |
1260 | case 2: | |
1261 | ADD_EXTRA ('s'); | |
1262 | break; | |
1263 | case 4: | |
1264 | { | |
1265 | char *pname; | |
1266 | if ((pname = strrchr (tname, 'l'), pname) && !strcmp (pname, "long")) | |
9846de1b JM |
1267 | { |
1268 | ADD_EXTRA ('l'); | |
1269 | } | |
1270 | else | |
1271 | { | |
1272 | ADD_EXTRA ('i'); | |
1273 | } | |
c5aa993b JM |
1274 | } |
1275 | break; | |
1276 | default: | |
1277 | { | |
1278 | ||
1279 | static struct complaint msg = | |
1280 | {"Bad int type code length x%x\n", 0, 0}; | |
1281 | ||
1282 | complain (&msg, tlen); | |
1283 | ||
1284 | } | |
1285 | } | |
1286 | break; | |
1287 | case TYPE_CODE_FLT: | |
1288 | switch (tlen) | |
1289 | { | |
1290 | case 4: | |
1291 | ADD_EXTRA ('f'); | |
1292 | break; | |
1293 | case 8: | |
1294 | ADD_EXTRA ('d'); | |
1295 | break; | |
1296 | case 16: | |
1297 | ADD_EXTRA ('r'); | |
1298 | break; | |
1299 | default: | |
1300 | { | |
1301 | static struct complaint msg = | |
1302 | {"Bad float type code length x%x\n", 0, 0}; | |
1303 | complain (&msg, tlen); | |
1304 | } | |
1305 | } | |
1306 | break; | |
1307 | case TYPE_CODE_REF: | |
1308 | ADD_EXTRA ('R'); | |
1309 | /* followed by what it's a ref to */ | |
1310 | break; | |
1311 | case TYPE_CODE_PTR: | |
1312 | ADD_EXTRA ('P'); | |
1313 | /* followed by what it's a ptr to */ | |
1314 | break; | |
1315 | case TYPE_CODE_TYPEDEF: | |
1316 | { | |
1317 | static struct complaint msg = | |
1318 | {"Typedefs in overloaded functions not yet supported\n", 0, 0}; | |
1319 | complain (&msg); | |
1320 | } | |
c906108c SS |
1321 | /* followed by type bytes & name */ |
1322 | break; | |
1323 | case TYPE_CODE_FUNC: | |
c5aa993b | 1324 | ADD_EXTRA ('F'); |
c906108c SS |
1325 | /* followed by func's arg '_' & ret types */ |
1326 | break; | |
1327 | case TYPE_CODE_VOID: | |
c5aa993b | 1328 | ADD_EXTRA ('v'); |
c906108c SS |
1329 | break; |
1330 | case TYPE_CODE_METHOD: | |
c5aa993b | 1331 | ADD_EXTRA ('M'); |
c906108c | 1332 | /* followed by name of class and func's arg '_' & ret types */ |
c5aa993b JM |
1333 | add_name (pextras, tname); |
1334 | ADD_EXTRA ('F'); /* then mangle function */ | |
c906108c | 1335 | break; |
c5aa993b JM |
1336 | case TYPE_CODE_STRUCT: /* C struct */ |
1337 | case TYPE_CODE_UNION: /* C union */ | |
1338 | case TYPE_CODE_ENUM: /* Enumeration type */ | |
c906108c | 1339 | /* followed by name of type */ |
c5aa993b | 1340 | add_name (pextras, tname); |
c906108c SS |
1341 | break; |
1342 | ||
c5aa993b JM |
1343 | /* errors possible types/not supported */ |
1344 | case TYPE_CODE_CHAR: | |
1345 | case TYPE_CODE_ARRAY: /* Array type */ | |
1346 | case TYPE_CODE_MEMBER: /* Member type */ | |
c906108c | 1347 | case TYPE_CODE_BOOL: |
c5aa993b | 1348 | case TYPE_CODE_COMPLEX: /* Complex float */ |
c906108c | 1349 | case TYPE_CODE_UNDEF: |
c5aa993b JM |
1350 | case TYPE_CODE_SET: /* Pascal sets */ |
1351 | case TYPE_CODE_RANGE: | |
c906108c SS |
1352 | case TYPE_CODE_STRING: |
1353 | case TYPE_CODE_BITSTRING: | |
1354 | case TYPE_CODE_ERROR: | |
c5aa993b | 1355 | default: |
c906108c | 1356 | { |
c5aa993b JM |
1357 | static struct complaint msg = |
1358 | {"Unknown type code x%x\n", 0, 0}; | |
1359 | complain (&msg, tcode); | |
c906108c SS |
1360 | } |
1361 | } | |
1362 | if (t->target_type) | |
c5aa993b | 1363 | add_mangled_type (pextras, t->target_type); |
c906108c SS |
1364 | } |
1365 | ||
1366 | #if 0 | |
1367 | void | |
c5aa993b | 1368 | cfront_mangle_name (type, i, j) |
c906108c SS |
1369 | struct type *type; |
1370 | int i; | |
1371 | int j; | |
1372 | { | |
c5aa993b JM |
1373 | struct fn_field *f; |
1374 | char *mangled_name = gdb_mangle_name (type, i, j); | |
1375 | ||
1376 | f = TYPE_FN_FIELDLIST1 (type, i); /* moved from below */ | |
1377 | ||
1378 | /* kludge to support cfront methods - gdb expects to find "F" for | |
1379 | ARM_mangled names, so when we mangle, we have to add it here */ | |
1380 | if (ARM_DEMANGLING) | |
1381 | { | |
1382 | int k; | |
1383 | char *arm_mangled_name; | |
1384 | struct fn_field *method = &f[j]; | |
1385 | char *field_name = TYPE_FN_FIELDLIST_NAME (type, i); | |
1386 | char *physname = TYPE_FN_FIELD_PHYSNAME (f, j); | |
1387 | char *newname = type_name_no_tag (type); | |
1388 | ||
1389 | struct type *ftype = TYPE_FN_FIELD_TYPE (f, j); | |
1390 | int nargs = TYPE_NFIELDS (ftype); /* number of args */ | |
1391 | struct extra extras, *pextras = &extras; | |
1392 | INIT_EXTRA | |
c906108c SS |
1393 | |
1394 | if (TYPE_FN_FIELD_STATIC_P (f, j)) /* j for sublist within this list */ | |
c5aa993b JM |
1395 | ADD_EXTRA ('S') |
1396 | ADD_EXTRA ('F') | |
c906108c | 1397 | /* add args here! */ |
c5aa993b JM |
1398 | if (nargs <= 1) /* no args besides this */ |
1399 | ADD_EXTRA ('v') | |
1400 | else | |
1401 | { | |
1402 | for (k = 1; k < nargs; k++) | |
1403 | { | |
1404 | struct type *t; | |
1405 | t = TYPE_FIELD_TYPE (ftype, k); | |
1406 | add_mangled_type (pextras, t); | |
1407 | } | |
1408 | } | |
1409 | ADD_EXTRA ('\0') | |
1410 | printf ("add_mangled_type: %s\n", extras.str); /* FIXME */ | |
1411 | arm_mangled_name = malloc (strlen (mangled_name) + extras.len); | |
1412 | sprintf (arm_mangled_name, "%s%s", mangled_name, extras.str); | |
1413 | free (mangled_name); | |
1414 | mangled_name = arm_mangled_name; | |
1415 | } | |
c906108c | 1416 | } |
c5aa993b | 1417 | #endif /* 0 */ |
c906108c SS |
1418 | |
1419 | #undef ADD_EXTRA | |
1420 | /* End of new code added to support parsing of Cfront stabs strings */ | |
1421 | ||
1422 | /* Ugly hack to convert method stubs into method types. | |
1423 | ||
1424 | He ain't kiddin'. This demangles the name of the method into a string | |
1425 | including argument types, parses out each argument type, generates | |
1426 | a string casting a zero to that type, evaluates the string, and stuffs | |
1427 | the resulting type into an argtype vector!!! Then it knows the type | |
1428 | of the whole function (including argument types for overloading), | |
1429 | which info used to be in the stab's but was removed to hack back | |
1430 | the space required for them. */ | |
1431 | ||
1432 | void | |
1433 | check_stub_method (type, method_id, signature_id) | |
1434 | struct type *type; | |
1435 | int method_id; | |
1436 | int signature_id; | |
1437 | { | |
1438 | struct fn_field *f; | |
1439 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
1440 | char *demangled_name = cplus_demangle (mangled_name, | |
1441 | DMGL_PARAMS | DMGL_ANSI); | |
1442 | char *argtypetext, *p; | |
1443 | int depth = 0, argcount = 1; | |
1444 | struct type **argtypes; | |
1445 | struct type *mtype; | |
1446 | ||
1447 | /* Make sure we got back a function string that we can use. */ | |
1448 | if (demangled_name) | |
1449 | p = strchr (demangled_name, '('); | |
1450 | ||
1451 | if (demangled_name == NULL || p == NULL) | |
1452 | error ("Internal: Cannot demangle mangled name `%s'.", mangled_name); | |
1453 | ||
1454 | /* Now, read in the parameters that define this type. */ | |
1455 | p += 1; | |
1456 | argtypetext = p; | |
1457 | while (*p) | |
1458 | { | |
1459 | if (*p == '(') | |
1460 | { | |
1461 | depth += 1; | |
1462 | } | |
1463 | else if (*p == ')') | |
1464 | { | |
1465 | depth -= 1; | |
1466 | } | |
1467 | else if (*p == ',' && depth == 0) | |
1468 | { | |
1469 | argcount += 1; | |
1470 | } | |
1471 | ||
1472 | p += 1; | |
1473 | } | |
1474 | ||
1475 | /* We need two more slots: one for the THIS pointer, and one for the | |
1476 | NULL [...] or void [end of arglist]. */ | |
1477 | ||
1478 | argtypes = (struct type **) | |
1479 | TYPE_ALLOC (type, (argcount + 2) * sizeof (struct type *)); | |
1480 | p = argtypetext; | |
1481 | /* FIXME: This is wrong for static member functions. */ | |
1482 | argtypes[0] = lookup_pointer_type (type); | |
1483 | argcount = 1; | |
1484 | ||
c5aa993b | 1485 | if (*p != ')') /* () means no args, skip while */ |
c906108c SS |
1486 | { |
1487 | depth = 0; | |
1488 | while (*p) | |
1489 | { | |
1490 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
1491 | { | |
1492 | /* Avoid parsing of ellipsis, they will be handled below. */ | |
1493 | if (strncmp (argtypetext, "...", p - argtypetext) != 0) | |
1494 | { | |
1495 | argtypes[argcount] = | |
c5aa993b | 1496 | parse_and_eval_type (argtypetext, p - argtypetext); |
c906108c SS |
1497 | argcount += 1; |
1498 | } | |
1499 | argtypetext = p + 1; | |
1500 | } | |
1501 | ||
1502 | if (*p == '(') | |
1503 | { | |
1504 | depth += 1; | |
1505 | } | |
1506 | else if (*p == ')') | |
1507 | { | |
1508 | depth -= 1; | |
1509 | } | |
1510 | ||
1511 | p += 1; | |
1512 | } | |
1513 | } | |
1514 | ||
c5aa993b | 1515 | if (p[-2] != '.') /* Not '...' */ |
c906108c SS |
1516 | { |
1517 | argtypes[argcount] = builtin_type_void; /* List terminator */ | |
1518 | } | |
1519 | else | |
1520 | { | |
c5aa993b | 1521 | argtypes[argcount] = NULL; /* Ellist terminator */ |
c906108c SS |
1522 | } |
1523 | ||
1524 | free (demangled_name); | |
1525 | ||
c5aa993b | 1526 | f = TYPE_FN_FIELDLIST1 (type, method_id); |
c906108c SS |
1527 | |
1528 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; | |
1529 | ||
1530 | /* Now update the old "stub" type into a real type. */ | |
1531 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
1532 | TYPE_DOMAIN_TYPE (mtype) = type; | |
1533 | TYPE_ARG_TYPES (mtype) = argtypes; | |
1534 | TYPE_FLAGS (mtype) &= ~TYPE_FLAG_STUB; | |
1535 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; | |
1536 | } | |
1537 | ||
1538 | const struct cplus_struct_type cplus_struct_default; | |
1539 | ||
1540 | void | |
1541 | allocate_cplus_struct_type (type) | |
1542 | struct type *type; | |
1543 | { | |
1544 | if (!HAVE_CPLUS_STRUCT (type)) | |
1545 | { | |
1546 | TYPE_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
1547 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
c5aa993b | 1548 | *(TYPE_CPLUS_SPECIFIC (type)) = cplus_struct_default; |
c906108c SS |
1549 | } |
1550 | } | |
1551 | ||
1552 | /* Helper function to initialize the standard scalar types. | |
1553 | ||
1554 | If NAME is non-NULL and OBJFILE is non-NULL, then we make a copy | |
1555 | of the string pointed to by name in the type_obstack for that objfile, | |
1556 | and initialize the type name to that copy. There are places (mipsread.c | |
1557 | in particular, where init_type is called with a NULL value for NAME). */ | |
1558 | ||
1559 | struct type * | |
1560 | init_type (code, length, flags, name, objfile) | |
1561 | enum type_code code; | |
1562 | int length; | |
1563 | int flags; | |
1564 | char *name; | |
1565 | struct objfile *objfile; | |
1566 | { | |
1567 | register struct type *type; | |
1568 | ||
1569 | type = alloc_type (objfile); | |
1570 | TYPE_CODE (type) = code; | |
1571 | TYPE_LENGTH (type) = length; | |
1572 | TYPE_FLAGS (type) |= flags; | |
1573 | if ((name != NULL) && (objfile != NULL)) | |
1574 | { | |
1575 | TYPE_NAME (type) = | |
c5aa993b | 1576 | obsavestring (name, strlen (name), &objfile->type_obstack); |
c906108c SS |
1577 | } |
1578 | else | |
1579 | { | |
1580 | TYPE_NAME (type) = name; | |
1581 | } | |
1582 | ||
1583 | /* C++ fancies. */ | |
1584 | ||
1585 | if (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION) | |
1586 | { | |
1587 | INIT_CPLUS_SPECIFIC (type); | |
1588 | } | |
1589 | return (type); | |
1590 | } | |
1591 | ||
1592 | /* Look up a fundamental type for the specified objfile. | |
1593 | May need to construct such a type if this is the first use. | |
1594 | ||
1595 | Some object file formats (ELF, COFF, etc) do not define fundamental | |
1596 | types such as "int" or "double". Others (stabs for example), do | |
1597 | define fundamental types. | |
1598 | ||
1599 | For the formats which don't provide fundamental types, gdb can create | |
1600 | such types, using defaults reasonable for the current language and | |
1601 | the current target machine. | |
1602 | ||
1603 | NOTE: This routine is obsolescent. Each debugging format reader | |
1604 | should manage it's own fundamental types, either creating them from | |
1605 | suitable defaults or reading them from the debugging information, | |
1606 | whichever is appropriate. The DWARF reader has already been | |
1607 | fixed to do this. Once the other readers are fixed, this routine | |
1608 | will go away. Also note that fundamental types should be managed | |
1609 | on a compilation unit basis in a multi-language environment, not | |
1610 | on a linkage unit basis as is done here. */ | |
1611 | ||
1612 | ||
1613 | struct type * | |
1614 | lookup_fundamental_type (objfile, typeid) | |
1615 | struct objfile *objfile; | |
1616 | int typeid; | |
1617 | { | |
1618 | register struct type **typep; | |
1619 | register int nbytes; | |
1620 | ||
1621 | if (typeid < 0 || typeid >= FT_NUM_MEMBERS) | |
1622 | { | |
1623 | error ("internal error - invalid fundamental type id %d", typeid); | |
1624 | } | |
1625 | ||
1626 | /* If this is the first time we need a fundamental type for this objfile | |
1627 | then we need to initialize the vector of type pointers. */ | |
c5aa993b JM |
1628 | |
1629 | if (objfile->fundamental_types == NULL) | |
c906108c SS |
1630 | { |
1631 | nbytes = FT_NUM_MEMBERS * sizeof (struct type *); | |
c5aa993b JM |
1632 | objfile->fundamental_types = (struct type **) |
1633 | obstack_alloc (&objfile->type_obstack, nbytes); | |
1634 | memset ((char *) objfile->fundamental_types, 0, nbytes); | |
c906108c SS |
1635 | OBJSTAT (objfile, n_types += FT_NUM_MEMBERS); |
1636 | } | |
1637 | ||
1638 | /* Look for this particular type in the fundamental type vector. If one is | |
1639 | not found, create and install one appropriate for the current language. */ | |
1640 | ||
c5aa993b | 1641 | typep = objfile->fundamental_types + typeid; |
c906108c SS |
1642 | if (*typep == NULL) |
1643 | { | |
1644 | *typep = create_fundamental_type (objfile, typeid); | |
1645 | } | |
1646 | ||
1647 | return (*typep); | |
1648 | } | |
1649 | ||
1650 | int | |
1651 | can_dereference (t) | |
1652 | struct type *t; | |
1653 | { | |
1654 | /* FIXME: Should we return true for references as well as pointers? */ | |
1655 | CHECK_TYPEDEF (t); | |
1656 | return | |
1657 | (t != NULL | |
1658 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
1659 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
1660 | } | |
1661 | ||
adf40b2e JM |
1662 | int |
1663 | is_integral_type (t) | |
1664 | struct type *t; | |
1665 | { | |
1666 | CHECK_TYPEDEF (t); | |
1667 | return | |
1668 | ((t != NULL) | |
d4f3574e SS |
1669 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
1670 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
1671 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) | |
1672 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
1673 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
1674 | } |
1675 | ||
c906108c SS |
1676 | /* Chill varying string and arrays are represented as follows: |
1677 | ||
1678 | struct { int __var_length; ELEMENT_TYPE[MAX_SIZE] __var_data}; | |
1679 | ||
1680 | Return true if TYPE is such a Chill varying type. */ | |
1681 | ||
1682 | int | |
1683 | chill_varying_type (type) | |
1684 | struct type *type; | |
1685 | { | |
1686 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT | |
1687 | || TYPE_NFIELDS (type) != 2 | |
1688 | || strcmp (TYPE_FIELD_NAME (type, 0), "__var_length") != 0) | |
1689 | return 0; | |
1690 | return 1; | |
1691 | } | |
1692 | ||
1693 | /* Check whether BASE is an ancestor or base class or DCLASS | |
1694 | Return 1 if so, and 0 if not. | |
1695 | Note: callers may want to check for identity of the types before | |
1696 | calling this function -- identical types are considered to satisfy | |
1697 | the ancestor relationship even if they're identical */ | |
1698 | ||
1699 | int | |
1700 | is_ancestor (base, dclass) | |
c5aa993b JM |
1701 | struct type *base; |
1702 | struct type *dclass; | |
c906108c SS |
1703 | { |
1704 | int i; | |
c5aa993b | 1705 | |
c906108c SS |
1706 | CHECK_TYPEDEF (base); |
1707 | CHECK_TYPEDEF (dclass); | |
1708 | ||
1709 | if (base == dclass) | |
1710 | return 1; | |
1711 | ||
1712 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1713 | if (is_ancestor (base, TYPE_BASECLASS (dclass, i))) | |
1714 | return 1; | |
1715 | ||
1716 | return 0; | |
1717 | } | |
1718 | ||
1719 | ||
1720 | ||
1721 | /* See whether DCLASS has a virtual table. This routine is aimed at | |
1722 | the HP/Taligent ANSI C++ runtime model, and may not work with other | |
1723 | runtime models. Return 1 => Yes, 0 => No. */ | |
1724 | ||
1725 | int | |
1726 | has_vtable (dclass) | |
c5aa993b | 1727 | struct type *dclass; |
c906108c SS |
1728 | { |
1729 | /* In the HP ANSI C++ runtime model, a class has a vtable only if it | |
1730 | has virtual functions or virtual bases. */ | |
1731 | ||
1732 | register int i; | |
1733 | ||
c5aa993b | 1734 | if (TYPE_CODE (dclass) != TYPE_CODE_CLASS) |
c906108c | 1735 | return 0; |
c5aa993b | 1736 | |
c906108c | 1737 | /* First check for the presence of virtual bases */ |
c5aa993b JM |
1738 | if (TYPE_FIELD_VIRTUAL_BITS (dclass)) |
1739 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1740 | if (B_TST (TYPE_FIELD_VIRTUAL_BITS (dclass), i)) | |
1741 | return 1; | |
1742 | ||
c906108c | 1743 | /* Next check for virtual functions */ |
c5aa993b JM |
1744 | if (TYPE_FN_FIELDLISTS (dclass)) |
1745 | for (i = 0; i < TYPE_NFN_FIELDS (dclass); i++) | |
1746 | if (TYPE_FN_FIELD_VIRTUAL_P (TYPE_FN_FIELDLIST1 (dclass, i), 0)) | |
c906108c | 1747 | return 1; |
c5aa993b JM |
1748 | |
1749 | /* Recurse on non-virtual bases to see if any of them needs a vtable */ | |
1750 | if (TYPE_FIELD_VIRTUAL_BITS (dclass)) | |
1751 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1752 | if ((!B_TST (TYPE_FIELD_VIRTUAL_BITS (dclass), i)) && | |
1753 | (has_vtable (TYPE_FIELD_TYPE (dclass, i)))) | |
1754 | return 1; | |
1755 | ||
1756 | /* Well, maybe we don't need a virtual table */ | |
c906108c SS |
1757 | return 0; |
1758 | } | |
1759 | ||
1760 | /* Return a pointer to the "primary base class" of DCLASS. | |
c5aa993b | 1761 | |
c906108c SS |
1762 | A NULL return indicates that DCLASS has no primary base, or that it |
1763 | couldn't be found (insufficient information). | |
c5aa993b | 1764 | |
c906108c SS |
1765 | This routine is aimed at the HP/Taligent ANSI C++ runtime model, |
1766 | and may not work with other runtime models. */ | |
1767 | ||
1768 | struct type * | |
1769 | primary_base_class (dclass) | |
c5aa993b | 1770 | struct type *dclass; |
c906108c SS |
1771 | { |
1772 | /* In HP ANSI C++'s runtime model, a "primary base class" of a class | |
1773 | is the first directly inherited, non-virtual base class that | |
1774 | requires a virtual table */ | |
1775 | ||
1776 | register int i; | |
1777 | ||
c5aa993b | 1778 | if (TYPE_CODE (dclass) != TYPE_CODE_CLASS) |
c906108c SS |
1779 | return NULL; |
1780 | ||
c5aa993b JM |
1781 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) |
1782 | if (!TYPE_FIELD_VIRTUAL (dclass, i) && | |
1783 | has_vtable (TYPE_FIELD_TYPE (dclass, i))) | |
1784 | return TYPE_FIELD_TYPE (dclass, i); | |
c906108c SS |
1785 | |
1786 | return NULL; | |
1787 | } | |
1788 | ||
1789 | /* Global manipulated by virtual_base_list[_aux]() */ | |
1790 | ||
c5aa993b | 1791 | static struct vbase *current_vbase_list = NULL; |
c906108c SS |
1792 | |
1793 | /* Return a pointer to a null-terminated list of struct vbase | |
1794 | items. The vbasetype pointer of each item in the list points to the | |
1795 | type information for a virtual base of the argument DCLASS. | |
c5aa993b | 1796 | |
c906108c SS |
1797 | Helper function for virtual_base_list(). |
1798 | Note: the list goes backward, right-to-left. virtual_base_list() | |
1799 | copies the items out in reverse order. */ | |
1800 | ||
7a292a7a | 1801 | static void |
c906108c | 1802 | virtual_base_list_aux (dclass) |
c5aa993b | 1803 | struct type *dclass; |
c906108c | 1804 | { |
c5aa993b | 1805 | struct vbase *tmp_vbase; |
c906108c SS |
1806 | register int i; |
1807 | ||
c5aa993b | 1808 | if (TYPE_CODE (dclass) != TYPE_CODE_CLASS) |
7a292a7a | 1809 | return; |
c906108c SS |
1810 | |
1811 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1812 | { | |
1813 | /* Recurse on this ancestor, first */ | |
c5aa993b | 1814 | virtual_base_list_aux (TYPE_FIELD_TYPE (dclass, i)); |
c906108c SS |
1815 | |
1816 | /* If this current base is itself virtual, add it to the list */ | |
c5aa993b JM |
1817 | if (BASETYPE_VIA_VIRTUAL (dclass, i)) |
1818 | { | |
1819 | struct type *basetype = TYPE_FIELD_TYPE (dclass, i); | |
1820 | ||
1821 | /* Check if base already recorded */ | |
1822 | tmp_vbase = current_vbase_list; | |
1823 | while (tmp_vbase) | |
1824 | { | |
1825 | if (tmp_vbase->vbasetype == basetype) | |
1826 | break; /* found it */ | |
1827 | tmp_vbase = tmp_vbase->next; | |
1828 | } | |
1829 | ||
1830 | if (!tmp_vbase) /* normal exit from loop */ | |
1831 | { | |
1832 | /* Allocate new item for this virtual base */ | |
1833 | tmp_vbase = (struct vbase *) xmalloc (sizeof (struct vbase)); | |
1834 | ||
1835 | /* Stick it on at the end of the list */ | |
1836 | tmp_vbase->vbasetype = basetype; | |
1837 | tmp_vbase->next = current_vbase_list; | |
1838 | current_vbase_list = tmp_vbase; | |
1839 | } | |
1840 | } /* if virtual */ | |
1841 | } /* for loop over bases */ | |
c906108c SS |
1842 | } |
1843 | ||
1844 | ||
1845 | /* Compute the list of virtual bases in the right order. Virtual | |
1846 | bases are laid out in the object's memory area in order of their | |
1847 | occurrence in a depth-first, left-to-right search through the | |
1848 | ancestors. | |
c5aa993b | 1849 | |
c906108c SS |
1850 | Argument DCLASS is the type whose virtual bases are required. |
1851 | Return value is the address of a null-terminated array of pointers | |
1852 | to struct type items. | |
c5aa993b | 1853 | |
c906108c SS |
1854 | This routine is aimed at the HP/Taligent ANSI C++ runtime model, |
1855 | and may not work with other runtime models. | |
c5aa993b | 1856 | |
c906108c SS |
1857 | This routine merely hands off the argument to virtual_base_list_aux() |
1858 | and then copies the result into an array to save space. */ | |
1859 | ||
1860 | struct type ** | |
1861 | virtual_base_list (dclass) | |
c5aa993b | 1862 | struct type *dclass; |
c906108c | 1863 | { |
c5aa993b JM |
1864 | register struct vbase *tmp_vbase; |
1865 | register struct vbase *tmp_vbase_2; | |
c906108c SS |
1866 | register int i; |
1867 | int count; | |
c5aa993b | 1868 | struct type **vbase_array; |
c906108c SS |
1869 | |
1870 | current_vbase_list = NULL; | |
c5aa993b | 1871 | virtual_base_list_aux (dclass); |
c906108c | 1872 | |
c5aa993b | 1873 | for (i = 0, tmp_vbase = current_vbase_list; tmp_vbase != NULL; i++, tmp_vbase = tmp_vbase->next) |
c906108c SS |
1874 | /* no body */ ; |
1875 | ||
1876 | count = i; | |
1877 | ||
c5aa993b | 1878 | vbase_array = (struct type **) xmalloc ((count + 1) * sizeof (struct type *)); |
c906108c | 1879 | |
c5aa993b | 1880 | for (i = count - 1, tmp_vbase = current_vbase_list; i >= 0; i--, tmp_vbase = tmp_vbase->next) |
c906108c SS |
1881 | vbase_array[i] = tmp_vbase->vbasetype; |
1882 | ||
1883 | /* Get rid of constructed chain */ | |
1884 | tmp_vbase_2 = tmp_vbase = current_vbase_list; | |
1885 | while (tmp_vbase) | |
1886 | { | |
1887 | tmp_vbase = tmp_vbase->next; | |
c5aa993b | 1888 | free (tmp_vbase_2); |
c906108c SS |
1889 | tmp_vbase_2 = tmp_vbase; |
1890 | } | |
c5aa993b | 1891 | |
c906108c SS |
1892 | vbase_array[count] = NULL; |
1893 | return vbase_array; | |
1894 | } | |
1895 | ||
1896 | /* Return the length of the virtual base list of the type DCLASS. */ | |
1897 | ||
1898 | int | |
1899 | virtual_base_list_length (dclass) | |
c5aa993b | 1900 | struct type *dclass; |
c906108c SS |
1901 | { |
1902 | register int i; | |
c5aa993b JM |
1903 | register struct vbase *tmp_vbase; |
1904 | ||
c906108c | 1905 | current_vbase_list = NULL; |
c5aa993b | 1906 | virtual_base_list_aux (dclass); |
c906108c | 1907 | |
c5aa993b | 1908 | for (i = 0, tmp_vbase = current_vbase_list; tmp_vbase != NULL; i++, tmp_vbase = tmp_vbase->next) |
c906108c SS |
1909 | /* no body */ ; |
1910 | return i; | |
1911 | } | |
1912 | ||
1913 | /* Return the number of elements of the virtual base list of the type | |
1914 | DCLASS, ignoring those appearing in the primary base (and its | |
1915 | primary base, recursively). */ | |
1916 | ||
1917 | int | |
1918 | virtual_base_list_length_skip_primaries (dclass) | |
c5aa993b | 1919 | struct type *dclass; |
c906108c SS |
1920 | { |
1921 | register int i; | |
c5aa993b JM |
1922 | register struct vbase *tmp_vbase; |
1923 | struct type *primary; | |
c906108c SS |
1924 | |
1925 | primary = TYPE_RUNTIME_PTR (dclass) ? TYPE_PRIMARY_BASE (dclass) : NULL; | |
1926 | ||
1927 | if (!primary) | |
1928 | return virtual_base_list_length (dclass); | |
1929 | ||
1930 | current_vbase_list = NULL; | |
c5aa993b | 1931 | virtual_base_list_aux (dclass); |
c906108c | 1932 | |
c5aa993b | 1933 | for (i = 0, tmp_vbase = current_vbase_list; tmp_vbase != NULL; tmp_vbase = tmp_vbase->next) |
c906108c SS |
1934 | { |
1935 | if (virtual_base_index (tmp_vbase->vbasetype, primary) >= 0) | |
c5aa993b | 1936 | continue; |
c906108c SS |
1937 | i++; |
1938 | } | |
1939 | return i; | |
1940 | } | |
1941 | ||
1942 | ||
1943 | /* Return the index (position) of type BASE, which is a virtual base | |
1944 | class of DCLASS, in the latter's virtual base list. A return of -1 | |
1945 | indicates "not found" or a problem. */ | |
1946 | ||
1947 | int | |
c5aa993b JM |
1948 | virtual_base_index (base, dclass) |
1949 | struct type *base; | |
1950 | struct type *dclass; | |
c906108c | 1951 | { |
c5aa993b | 1952 | register struct type *vbase; |
c906108c SS |
1953 | register int i; |
1954 | ||
c5aa993b JM |
1955 | if ((TYPE_CODE (dclass) != TYPE_CODE_CLASS) || |
1956 | (TYPE_CODE (base) != TYPE_CODE_CLASS)) | |
c906108c SS |
1957 | return -1; |
1958 | ||
1959 | i = 0; | |
c5aa993b | 1960 | vbase = TYPE_VIRTUAL_BASE_LIST (dclass)[0]; |
c906108c SS |
1961 | while (vbase) |
1962 | { | |
1963 | if (vbase == base) | |
c5aa993b JM |
1964 | break; |
1965 | vbase = TYPE_VIRTUAL_BASE_LIST (dclass)[++i]; | |
c906108c SS |
1966 | } |
1967 | ||
1968 | return vbase ? i : -1; | |
1969 | } | |
1970 | ||
1971 | ||
1972 | ||
1973 | /* Return the index (position) of type BASE, which is a virtual base | |
1974 | class of DCLASS, in the latter's virtual base list. Skip over all | |
1975 | bases that may appear in the virtual base list of the primary base | |
1976 | class of DCLASS (recursively). A return of -1 indicates "not | |
1977 | found" or a problem. */ | |
1978 | ||
1979 | int | |
c5aa993b JM |
1980 | virtual_base_index_skip_primaries (base, dclass) |
1981 | struct type *base; | |
1982 | struct type *dclass; | |
c906108c | 1983 | { |
c5aa993b | 1984 | register struct type *vbase; |
c906108c | 1985 | register int i, j; |
c5aa993b | 1986 | struct type *primary; |
c906108c | 1987 | |
c5aa993b JM |
1988 | if ((TYPE_CODE (dclass) != TYPE_CODE_CLASS) || |
1989 | (TYPE_CODE (base) != TYPE_CODE_CLASS)) | |
c906108c SS |
1990 | return -1; |
1991 | ||
c5aa993b | 1992 | primary = TYPE_RUNTIME_PTR (dclass) ? TYPE_PRIMARY_BASE (dclass) : NULL; |
c906108c SS |
1993 | |
1994 | j = -1; | |
1995 | i = 0; | |
c5aa993b | 1996 | vbase = TYPE_VIRTUAL_BASE_LIST (dclass)[0]; |
c906108c SS |
1997 | while (vbase) |
1998 | { | |
c5aa993b JM |
1999 | if (!primary || (virtual_base_index_skip_primaries (vbase, primary) < 0)) |
2000 | j++; | |
c906108c | 2001 | if (vbase == base) |
c5aa993b JM |
2002 | break; |
2003 | vbase = TYPE_VIRTUAL_BASE_LIST (dclass)[++i]; | |
c906108c SS |
2004 | } |
2005 | ||
2006 | return vbase ? j : -1; | |
2007 | } | |
2008 | ||
2009 | /* Return position of a derived class DCLASS in the list of | |
2010 | * primary bases starting with the remotest ancestor. | |
2011 | * Position returned is 0-based. */ | |
2012 | ||
2013 | int | |
2014 | class_index_in_primary_list (dclass) | |
c5aa993b | 2015 | struct type *dclass; |
c906108c | 2016 | { |
c5aa993b | 2017 | struct type *pbc; /* primary base class */ |
c906108c | 2018 | |
c5aa993b | 2019 | /* Simply recurse on primary base */ |
c906108c SS |
2020 | pbc = TYPE_PRIMARY_BASE (dclass); |
2021 | if (pbc) | |
2022 | return 1 + class_index_in_primary_list (pbc); | |
2023 | else | |
2024 | return 0; | |
2025 | } | |
2026 | ||
2027 | /* Return a count of the number of virtual functions a type has. | |
2028 | * This includes all the virtual functions it inherits from its | |
2029 | * base classes too. | |
2030 | */ | |
2031 | ||
2032 | /* pai: FIXME This doesn't do the right thing: count redefined virtual | |
2033 | * functions only once (latest redefinition) | |
2034 | */ | |
2035 | ||
2036 | int | |
2037 | count_virtual_fns (dclass) | |
c5aa993b | 2038 | struct type *dclass; |
c906108c | 2039 | { |
c5aa993b | 2040 | int fn, oi; /* function and overloaded instance indices */ |
c5aa993b JM |
2041 | int vfuncs; /* count to return */ |
2042 | ||
2043 | /* recurse on bases that can share virtual table */ | |
2044 | struct type *pbc = primary_base_class (dclass); | |
c906108c SS |
2045 | if (pbc) |
2046 | vfuncs = count_virtual_fns (pbc); | |
c5aa993b | 2047 | |
c906108c SS |
2048 | for (fn = 0; fn < TYPE_NFN_FIELDS (dclass); fn++) |
2049 | for (oi = 0; oi < TYPE_FN_FIELDLIST_LENGTH (dclass, fn); oi++) | |
2050 | if (TYPE_FN_FIELD_VIRTUAL_P (TYPE_FN_FIELDLIST1 (dclass, fn), oi)) | |
c5aa993b | 2051 | vfuncs++; |
c906108c SS |
2052 | |
2053 | return vfuncs; | |
2054 | } | |
c906108c SS |
2055 | \f |
2056 | ||
c5aa993b | 2057 | |
c906108c SS |
2058 | /* Functions for overload resolution begin here */ |
2059 | ||
2060 | /* Compare two badness vectors A and B and return the result. | |
2061 | * 0 => A and B are identical | |
2062 | * 1 => A and B are incomparable | |
2063 | * 2 => A is better than B | |
2064 | * 3 => A is worse than B */ | |
2065 | ||
2066 | int | |
2067 | compare_badness (a, b) | |
c5aa993b JM |
2068 | struct badness_vector *a; |
2069 | struct badness_vector *b; | |
c906108c SS |
2070 | { |
2071 | int i; | |
2072 | int tmp; | |
c5aa993b JM |
2073 | short found_pos = 0; /* any positives in c? */ |
2074 | short found_neg = 0; /* any negatives in c? */ | |
2075 | ||
2076 | /* differing lengths => incomparable */ | |
c906108c SS |
2077 | if (a->length != b->length) |
2078 | return 1; | |
2079 | ||
c5aa993b JM |
2080 | /* Subtract b from a */ |
2081 | for (i = 0; i < a->length; i++) | |
c906108c SS |
2082 | { |
2083 | tmp = a->rank[i] - b->rank[i]; | |
2084 | if (tmp > 0) | |
c5aa993b | 2085 | found_pos = 1; |
c906108c | 2086 | else if (tmp < 0) |
c5aa993b | 2087 | found_neg = 1; |
c906108c SS |
2088 | } |
2089 | ||
2090 | if (found_pos) | |
2091 | { | |
2092 | if (found_neg) | |
c5aa993b | 2093 | return 1; /* incomparable */ |
c906108c | 2094 | else |
c5aa993b | 2095 | return 3; /* A > B */ |
c906108c | 2096 | } |
c5aa993b JM |
2097 | else |
2098 | /* no positives */ | |
c906108c SS |
2099 | { |
2100 | if (found_neg) | |
c5aa993b | 2101 | return 2; /* A < B */ |
c906108c | 2102 | else |
c5aa993b | 2103 | return 0; /* A == B */ |
c906108c SS |
2104 | } |
2105 | } | |
2106 | ||
2107 | /* Rank a function by comparing its parameter types (PARMS, length NPARMS), | |
2108 | * to the types of an argument list (ARGS, length NARGS). | |
2109 | * Return a pointer to a badness vector. This has NARGS + 1 entries. */ | |
2110 | ||
2111 | struct badness_vector * | |
2112 | rank_function (parms, nparms, args, nargs) | |
c5aa993b JM |
2113 | struct type **parms; |
2114 | int nparms; | |
2115 | struct type **args; | |
2116 | int nargs; | |
c906108c SS |
2117 | { |
2118 | int i; | |
c5aa993b | 2119 | struct badness_vector *bv; |
c906108c SS |
2120 | int min_len = nparms < nargs ? nparms : nargs; |
2121 | ||
2122 | bv = xmalloc (sizeof (struct badness_vector)); | |
c5aa993b | 2123 | bv->length = nargs + 1; /* add 1 for the length-match rank */ |
c906108c SS |
2124 | bv->rank = xmalloc ((nargs + 1) * sizeof (int)); |
2125 | ||
2126 | /* First compare the lengths of the supplied lists. | |
2127 | * If there is a mismatch, set it to a high value. */ | |
c5aa993b | 2128 | |
c906108c SS |
2129 | /* pai/1997-06-03 FIXME: when we have debug info about default |
2130 | * arguments and ellipsis parameter lists, we should consider those | |
2131 | * and rank the length-match more finely. */ | |
2132 | ||
2133 | LENGTH_MATCH (bv) = (nargs != nparms) ? LENGTH_MISMATCH_BADNESS : 0; | |
2134 | ||
2135 | /* Now rank all the parameters of the candidate function */ | |
c5aa993b JM |
2136 | for (i = 1; i <= min_len; i++) |
2137 | bv->rank[i] = rank_one_type (parms[i - 1], args[i - 1]); | |
c906108c | 2138 | |
c5aa993b JM |
2139 | /* If more arguments than parameters, add dummy entries */ |
2140 | for (i = min_len + 1; i <= nargs; i++) | |
c906108c SS |
2141 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
2142 | ||
2143 | return bv; | |
2144 | } | |
2145 | ||
2146 | /* Compare one type (PARM) for compatibility with another (ARG). | |
2147 | * PARM is intended to be the parameter type of a function; and | |
2148 | * ARG is the supplied argument's type. This function tests if | |
2149 | * the latter can be converted to the former. | |
2150 | * | |
2151 | * Return 0 if they are identical types; | |
2152 | * Otherwise, return an integer which corresponds to how compatible | |
2153 | * PARM is to ARG. The higher the return value, the worse the match. | |
2154 | * Generally the "bad" conversions are all uniformly assigned a 100 */ | |
2155 | ||
2156 | int | |
2157 | rank_one_type (parm, arg) | |
c5aa993b JM |
2158 | struct type *parm; |
2159 | struct type *arg; | |
c906108c SS |
2160 | { |
2161 | /* Identical type pointers */ | |
2162 | /* However, this still doesn't catch all cases of same type for arg | |
2163 | * and param. The reason is that builtin types are different from | |
2164 | * the same ones constructed from the object. */ | |
2165 | if (parm == arg) | |
2166 | return 0; | |
2167 | ||
2168 | /* Resolve typedefs */ | |
2169 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
2170 | parm = check_typedef (parm); | |
2171 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
2172 | arg = check_typedef (arg); | |
2173 | ||
2174 | /* Check if identical after resolving typedefs */ | |
2175 | if (parm == arg) | |
2176 | return 0; | |
2177 | ||
2178 | #if 0 | |
c5aa993b JM |
2179 | /* Debugging only */ |
2180 | printf ("------ Arg is %s [%d], parm is %s [%d]\n", | |
2181 | TYPE_NAME (arg), TYPE_CODE (arg), TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c SS |
2182 | #endif |
2183 | ||
2184 | /* x -> y means arg of type x being supplied for parameter of type y */ | |
2185 | ||
2186 | switch (TYPE_CODE (parm)) | |
2187 | { | |
c5aa993b JM |
2188 | case TYPE_CODE_PTR: |
2189 | switch (TYPE_CODE (arg)) | |
2190 | { | |
2191 | case TYPE_CODE_PTR: | |
2192 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) | |
2193 | return VOID_PTR_CONVERSION_BADNESS; | |
2194 | else | |
2195 | return rank_one_type (TYPE_TARGET_TYPE (parm), TYPE_TARGET_TYPE (arg)); | |
2196 | case TYPE_CODE_ARRAY: | |
2197 | return rank_one_type (TYPE_TARGET_TYPE (parm), TYPE_TARGET_TYPE (arg)); | |
2198 | case TYPE_CODE_FUNC: | |
2199 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg); | |
2200 | case TYPE_CODE_INT: | |
2201 | case TYPE_CODE_ENUM: | |
2202 | case TYPE_CODE_CHAR: | |
2203 | case TYPE_CODE_RANGE: | |
2204 | case TYPE_CODE_BOOL: | |
2205 | return POINTER_CONVERSION_BADNESS; | |
2206 | default: | |
2207 | return INCOMPATIBLE_TYPE_BADNESS; | |
2208 | } | |
2209 | case TYPE_CODE_ARRAY: | |
2210 | switch (TYPE_CODE (arg)) | |
2211 | { | |
2212 | case TYPE_CODE_PTR: | |
2213 | case TYPE_CODE_ARRAY: | |
2214 | return rank_one_type (TYPE_TARGET_TYPE (parm), TYPE_TARGET_TYPE (arg)); | |
2215 | default: | |
2216 | return INCOMPATIBLE_TYPE_BADNESS; | |
2217 | } | |
2218 | case TYPE_CODE_FUNC: | |
2219 | switch (TYPE_CODE (arg)) | |
2220 | { | |
2221 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
2222 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg)); | |
2223 | default: | |
2224 | return INCOMPATIBLE_TYPE_BADNESS; | |
2225 | } | |
2226 | case TYPE_CODE_INT: | |
2227 | switch (TYPE_CODE (arg)) | |
2228 | { | |
2229 | case TYPE_CODE_INT: | |
2230 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2231 | { | |
2232 | /* Deal with signed, unsigned, and plain chars and | |
2233 | signed and unsigned ints */ | |
2234 | if (TYPE_NOSIGN (parm)) | |
2235 | { | |
2236 | /* This case only for character types */ | |
2237 | if (TYPE_NOSIGN (arg)) /* plain char -> plain char */ | |
2238 | return 0; | |
2239 | else | |
2240 | return INTEGER_COERCION_BADNESS; /* signed/unsigned char -> plain char */ | |
2241 | } | |
2242 | else if (TYPE_UNSIGNED (parm)) | |
2243 | { | |
2244 | if (TYPE_UNSIGNED (arg)) | |
2245 | { | |
2246 | if (!strcmp (TYPE_NAME (parm), TYPE_NAME (arg))) | |
2247 | return 0; /* unsigned int -> unsigned int, or unsigned long -> unsigned long */ | |
2248 | else if (!strcmp (TYPE_NAME (arg), "int") && !strcmp (TYPE_NAME (parm), "long")) | |
2249 | return INTEGER_PROMOTION_BADNESS; /* unsigned int -> unsigned long */ | |
2250 | else | |
2251 | return INTEGER_COERCION_BADNESS; /* unsigned long -> unsigned int */ | |
2252 | } | |
2253 | else | |
2254 | { | |
2255 | if (!strcmp (TYPE_NAME (arg), "long") && !strcmp (TYPE_NAME (parm), "int")) | |
2256 | return INTEGER_COERCION_BADNESS; /* signed long -> unsigned int */ | |
2257 | else | |
2258 | return INTEGER_CONVERSION_BADNESS; /* signed int/long -> unsigned int/long */ | |
2259 | } | |
2260 | } | |
2261 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2262 | { | |
2263 | if (!strcmp (TYPE_NAME (parm), TYPE_NAME (arg))) | |
2264 | return 0; | |
2265 | else if (!strcmp (TYPE_NAME (arg), "int") && !strcmp (TYPE_NAME (parm), "long")) | |
2266 | return INTEGER_PROMOTION_BADNESS; | |
2267 | else | |
2268 | return INTEGER_COERCION_BADNESS; | |
2269 | } | |
2270 | else | |
2271 | return INTEGER_COERCION_BADNESS; | |
2272 | } | |
2273 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2274 | return INTEGER_PROMOTION_BADNESS; | |
2275 | else | |
2276 | return INTEGER_COERCION_BADNESS; | |
2277 | case TYPE_CODE_ENUM: | |
2278 | case TYPE_CODE_CHAR: | |
2279 | case TYPE_CODE_RANGE: | |
2280 | case TYPE_CODE_BOOL: | |
2281 | return INTEGER_PROMOTION_BADNESS; | |
2282 | case TYPE_CODE_FLT: | |
2283 | return INT_FLOAT_CONVERSION_BADNESS; | |
2284 | case TYPE_CODE_PTR: | |
2285 | return NS_POINTER_CONVERSION_BADNESS; | |
2286 | default: | |
2287 | return INCOMPATIBLE_TYPE_BADNESS; | |
2288 | } | |
2289 | break; | |
2290 | case TYPE_CODE_ENUM: | |
2291 | switch (TYPE_CODE (arg)) | |
2292 | { | |
2293 | case TYPE_CODE_INT: | |
2294 | case TYPE_CODE_CHAR: | |
2295 | case TYPE_CODE_RANGE: | |
2296 | case TYPE_CODE_BOOL: | |
2297 | case TYPE_CODE_ENUM: | |
2298 | return INTEGER_COERCION_BADNESS; | |
2299 | case TYPE_CODE_FLT: | |
2300 | return INT_FLOAT_CONVERSION_BADNESS; | |
2301 | default: | |
2302 | return INCOMPATIBLE_TYPE_BADNESS; | |
2303 | } | |
2304 | break; | |
2305 | case TYPE_CODE_CHAR: | |
2306 | switch (TYPE_CODE (arg)) | |
2307 | { | |
2308 | case TYPE_CODE_RANGE: | |
2309 | case TYPE_CODE_BOOL: | |
2310 | case TYPE_CODE_ENUM: | |
2311 | return INTEGER_COERCION_BADNESS; | |
2312 | case TYPE_CODE_FLT: | |
2313 | return INT_FLOAT_CONVERSION_BADNESS; | |
2314 | case TYPE_CODE_INT: | |
2315 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
2316 | return INTEGER_COERCION_BADNESS; | |
2317 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2318 | return INTEGER_PROMOTION_BADNESS; | |
2319 | /* >>> !! else fall through !! <<< */ | |
2320 | case TYPE_CODE_CHAR: | |
2321 | /* Deal with signed, unsigned, and plain chars for C++ | |
2322 | and with int cases falling through from previous case */ | |
2323 | if (TYPE_NOSIGN (parm)) | |
2324 | { | |
2325 | if (TYPE_NOSIGN (arg)) | |
2326 | return 0; | |
2327 | else | |
2328 | return INTEGER_COERCION_BADNESS; | |
2329 | } | |
2330 | else if (TYPE_UNSIGNED (parm)) | |
2331 | { | |
2332 | if (TYPE_UNSIGNED (arg)) | |
2333 | return 0; | |
2334 | else | |
2335 | return INTEGER_PROMOTION_BADNESS; | |
2336 | } | |
2337 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2338 | return 0; | |
2339 | else | |
2340 | return INTEGER_COERCION_BADNESS; | |
2341 | default: | |
2342 | return INCOMPATIBLE_TYPE_BADNESS; | |
2343 | } | |
2344 | break; | |
2345 | case TYPE_CODE_RANGE: | |
2346 | switch (TYPE_CODE (arg)) | |
2347 | { | |
2348 | case TYPE_CODE_INT: | |
2349 | case TYPE_CODE_CHAR: | |
2350 | case TYPE_CODE_RANGE: | |
2351 | case TYPE_CODE_BOOL: | |
2352 | case TYPE_CODE_ENUM: | |
2353 | return INTEGER_COERCION_BADNESS; | |
2354 | case TYPE_CODE_FLT: | |
2355 | return INT_FLOAT_CONVERSION_BADNESS; | |
2356 | default: | |
2357 | return INCOMPATIBLE_TYPE_BADNESS; | |
2358 | } | |
2359 | break; | |
2360 | case TYPE_CODE_BOOL: | |
2361 | switch (TYPE_CODE (arg)) | |
2362 | { | |
2363 | case TYPE_CODE_INT: | |
2364 | case TYPE_CODE_CHAR: | |
2365 | case TYPE_CODE_RANGE: | |
2366 | case TYPE_CODE_ENUM: | |
2367 | case TYPE_CODE_FLT: | |
2368 | case TYPE_CODE_PTR: | |
2369 | return BOOLEAN_CONVERSION_BADNESS; | |
2370 | case TYPE_CODE_BOOL: | |
2371 | return 0; | |
2372 | default: | |
2373 | return INCOMPATIBLE_TYPE_BADNESS; | |
2374 | } | |
2375 | break; | |
2376 | case TYPE_CODE_FLT: | |
2377 | switch (TYPE_CODE (arg)) | |
2378 | { | |
2379 | case TYPE_CODE_FLT: | |
2380 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2381 | return FLOAT_PROMOTION_BADNESS; | |
2382 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2383 | return 0; | |
2384 | else | |
2385 | return FLOAT_CONVERSION_BADNESS; | |
2386 | case TYPE_CODE_INT: | |
2387 | case TYPE_CODE_BOOL: | |
2388 | case TYPE_CODE_ENUM: | |
2389 | case TYPE_CODE_RANGE: | |
2390 | case TYPE_CODE_CHAR: | |
2391 | return INT_FLOAT_CONVERSION_BADNESS; | |
2392 | default: | |
2393 | return INCOMPATIBLE_TYPE_BADNESS; | |
2394 | } | |
2395 | break; | |
2396 | case TYPE_CODE_COMPLEX: | |
2397 | switch (TYPE_CODE (arg)) | |
2398 | { /* Strictly not needed for C++, but... */ | |
2399 | case TYPE_CODE_FLT: | |
2400 | return FLOAT_PROMOTION_BADNESS; | |
2401 | case TYPE_CODE_COMPLEX: | |
2402 | return 0; | |
2403 | default: | |
2404 | return INCOMPATIBLE_TYPE_BADNESS; | |
2405 | } | |
2406 | break; | |
2407 | case TYPE_CODE_STRUCT: | |
c906108c | 2408 | /* currently same as TYPE_CODE_CLASS */ |
c5aa993b JM |
2409 | switch (TYPE_CODE (arg)) |
2410 | { | |
2411 | case TYPE_CODE_STRUCT: | |
2412 | /* Check for derivation */ | |
2413 | if (is_ancestor (parm, arg)) | |
2414 | return BASE_CONVERSION_BADNESS; | |
2415 | /* else fall through */ | |
2416 | default: | |
2417 | return INCOMPATIBLE_TYPE_BADNESS; | |
2418 | } | |
2419 | break; | |
2420 | case TYPE_CODE_UNION: | |
2421 | switch (TYPE_CODE (arg)) | |
2422 | { | |
2423 | case TYPE_CODE_UNION: | |
2424 | default: | |
2425 | return INCOMPATIBLE_TYPE_BADNESS; | |
2426 | } | |
2427 | break; | |
2428 | case TYPE_CODE_MEMBER: | |
2429 | switch (TYPE_CODE (arg)) | |
2430 | { | |
2431 | default: | |
2432 | return INCOMPATIBLE_TYPE_BADNESS; | |
2433 | } | |
2434 | break; | |
2435 | case TYPE_CODE_METHOD: | |
2436 | switch (TYPE_CODE (arg)) | |
2437 | { | |
2438 | ||
2439 | default: | |
2440 | return INCOMPATIBLE_TYPE_BADNESS; | |
2441 | } | |
2442 | break; | |
2443 | case TYPE_CODE_REF: | |
2444 | switch (TYPE_CODE (arg)) | |
2445 | { | |
2446 | ||
2447 | default: | |
2448 | return INCOMPATIBLE_TYPE_BADNESS; | |
2449 | } | |
2450 | ||
2451 | break; | |
2452 | case TYPE_CODE_SET: | |
2453 | switch (TYPE_CODE (arg)) | |
2454 | { | |
2455 | /* Not in C++ */ | |
2456 | case TYPE_CODE_SET: | |
2457 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), TYPE_FIELD_TYPE (arg, 0)); | |
2458 | default: | |
2459 | return INCOMPATIBLE_TYPE_BADNESS; | |
2460 | } | |
2461 | break; | |
2462 | case TYPE_CODE_VOID: | |
2463 | default: | |
2464 | return INCOMPATIBLE_TYPE_BADNESS; | |
2465 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
2466 | } |
2467 | ||
c5aa993b JM |
2468 | |
2469 | /* End of functions for overload resolution */ | |
c906108c | 2470 | |
c906108c SS |
2471 | static void |
2472 | print_bit_vector (bits, nbits) | |
2473 | B_TYPE *bits; | |
2474 | int nbits; | |
2475 | { | |
2476 | int bitno; | |
2477 | ||
2478 | for (bitno = 0; bitno < nbits; bitno++) | |
2479 | { | |
2480 | if ((bitno % 8) == 0) | |
2481 | { | |
2482 | puts_filtered (" "); | |
2483 | } | |
2484 | if (B_TST (bits, bitno)) | |
2485 | { | |
2486 | printf_filtered ("1"); | |
2487 | } | |
2488 | else | |
2489 | { | |
2490 | printf_filtered ("0"); | |
2491 | } | |
2492 | } | |
2493 | } | |
2494 | ||
2495 | /* The args list is a strange beast. It is either terminated by a NULL | |
2496 | pointer for varargs functions, or by a pointer to a TYPE_CODE_VOID | |
2497 | type for normal fixed argcount functions. (FIXME someday) | |
2498 | Also note the first arg should be the "this" pointer, we may not want to | |
2499 | include it since we may get into a infinitely recursive situation. */ | |
2500 | ||
2501 | static void | |
2502 | print_arg_types (args, spaces) | |
2503 | struct type **args; | |
2504 | int spaces; | |
2505 | { | |
2506 | if (args != NULL) | |
2507 | { | |
2508 | while (*args != NULL) | |
2509 | { | |
2510 | recursive_dump_type (*args, spaces + 2); | |
c5aa993b | 2511 | if ((*args++)->code == TYPE_CODE_VOID) |
c906108c SS |
2512 | { |
2513 | break; | |
2514 | } | |
2515 | } | |
2516 | } | |
2517 | } | |
2518 | ||
2519 | static void | |
2520 | dump_fn_fieldlists (type, spaces) | |
2521 | struct type *type; | |
2522 | int spaces; | |
2523 | { | |
2524 | int method_idx; | |
2525 | int overload_idx; | |
2526 | struct fn_field *f; | |
2527 | ||
2528 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 2529 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
2530 | printf_filtered ("\n"); |
2531 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
2532 | { | |
2533 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
2534 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
2535 | method_idx, | |
2536 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
2537 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
2538 | gdb_stdout); | |
c906108c SS |
2539 | printf_filtered (") length %d\n", |
2540 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); | |
2541 | for (overload_idx = 0; | |
2542 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
2543 | overload_idx++) | |
2544 | { | |
2545 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
2546 | overload_idx, | |
2547 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
2548 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
2549 | gdb_stdout); | |
c906108c SS |
2550 | printf_filtered (")\n"); |
2551 | printfi_filtered (spaces + 8, "type "); | |
d4f3574e | 2552 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), gdb_stdout); |
c906108c SS |
2553 | printf_filtered ("\n"); |
2554 | ||
2555 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
2556 | spaces + 8 + 2); | |
2557 | ||
2558 | printfi_filtered (spaces + 8, "args "); | |
d4f3574e | 2559 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), gdb_stdout); |
c906108c SS |
2560 | printf_filtered ("\n"); |
2561 | ||
2562 | print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), spaces); | |
2563 | printfi_filtered (spaces + 8, "fcontext "); | |
d4f3574e SS |
2564 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
2565 | gdb_stdout); | |
c906108c SS |
2566 | printf_filtered ("\n"); |
2567 | ||
2568 | printfi_filtered (spaces + 8, "is_const %d\n", | |
2569 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
2570 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
2571 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
2572 | printfi_filtered (spaces + 8, "is_private %d\n", | |
2573 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
2574 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
2575 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
2576 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
2577 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
2578 | printfi_filtered (spaces + 8, "voffset %u\n", | |
2579 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
2580 | } | |
2581 | } | |
2582 | } | |
2583 | ||
2584 | static void | |
2585 | print_cplus_stuff (type, spaces) | |
2586 | struct type *type; | |
2587 | int spaces; | |
2588 | { | |
2589 | printfi_filtered (spaces, "n_baseclasses %d\n", | |
2590 | TYPE_N_BASECLASSES (type)); | |
2591 | printfi_filtered (spaces, "nfn_fields %d\n", | |
2592 | TYPE_NFN_FIELDS (type)); | |
2593 | printfi_filtered (spaces, "nfn_fields_total %d\n", | |
2594 | TYPE_NFN_FIELDS_TOTAL (type)); | |
2595 | if (TYPE_N_BASECLASSES (type) > 0) | |
2596 | { | |
2597 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
2598 | TYPE_N_BASECLASSES (type)); | |
d4f3574e | 2599 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), gdb_stdout); |
c906108c SS |
2600 | printf_filtered (")"); |
2601 | ||
2602 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
2603 | TYPE_N_BASECLASSES (type)); | |
2604 | puts_filtered ("\n"); | |
2605 | } | |
2606 | if (TYPE_NFIELDS (type) > 0) | |
2607 | { | |
2608 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
2609 | { | |
2610 | printfi_filtered (spaces, "private_field_bits (%d bits at *", | |
2611 | TYPE_NFIELDS (type)); | |
d4f3574e | 2612 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), gdb_stdout); |
c906108c SS |
2613 | printf_filtered (")"); |
2614 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
2615 | TYPE_NFIELDS (type)); | |
2616 | puts_filtered ("\n"); | |
2617 | } | |
2618 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
2619 | { | |
2620 | printfi_filtered (spaces, "protected_field_bits (%d bits at *", | |
2621 | TYPE_NFIELDS (type)); | |
d4f3574e | 2622 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), gdb_stdout); |
c906108c SS |
2623 | printf_filtered (")"); |
2624 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
2625 | TYPE_NFIELDS (type)); | |
2626 | puts_filtered ("\n"); | |
2627 | } | |
2628 | } | |
2629 | if (TYPE_NFN_FIELDS (type) > 0) | |
2630 | { | |
2631 | dump_fn_fieldlists (type, spaces); | |
2632 | } | |
2633 | } | |
2634 | ||
2635 | static struct obstack dont_print_type_obstack; | |
2636 | ||
2637 | void | |
2638 | recursive_dump_type (type, spaces) | |
2639 | struct type *type; | |
2640 | int spaces; | |
2641 | { | |
2642 | int idx; | |
2643 | ||
2644 | if (spaces == 0) | |
2645 | obstack_begin (&dont_print_type_obstack, 0); | |
2646 | ||
2647 | if (TYPE_NFIELDS (type) > 0 | |
2648 | || (TYPE_CPLUS_SPECIFIC (type) && TYPE_NFN_FIELDS (type) > 0)) | |
2649 | { | |
2650 | struct type **first_dont_print | |
c5aa993b | 2651 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 2652 | |
c5aa993b JM |
2653 | int i = (struct type **) obstack_next_free (&dont_print_type_obstack) |
2654 | - first_dont_print; | |
c906108c SS |
2655 | |
2656 | while (--i >= 0) | |
2657 | { | |
2658 | if (type == first_dont_print[i]) | |
2659 | { | |
2660 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 2661 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
2662 | printf_filtered (" <same as already seen type>\n"); |
2663 | return; | |
2664 | } | |
2665 | } | |
2666 | ||
2667 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
2668 | } | |
2669 | ||
2670 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 2671 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
2672 | printf_filtered ("\n"); |
2673 | printfi_filtered (spaces, "name '%s' (", | |
2674 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 2675 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c SS |
2676 | printf_filtered (")\n"); |
2677 | if (TYPE_TAG_NAME (type) != NULL) | |
2678 | { | |
2679 | printfi_filtered (spaces, "tagname '%s' (", | |
2680 | TYPE_TAG_NAME (type)); | |
d4f3574e | 2681 | gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); |
c906108c SS |
2682 | printf_filtered (")\n"); |
2683 | } | |
2684 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); | |
2685 | switch (TYPE_CODE (type)) | |
2686 | { | |
c5aa993b JM |
2687 | case TYPE_CODE_UNDEF: |
2688 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
2689 | break; | |
2690 | case TYPE_CODE_PTR: | |
2691 | printf_filtered ("(TYPE_CODE_PTR)"); | |
2692 | break; | |
2693 | case TYPE_CODE_ARRAY: | |
2694 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
2695 | break; | |
2696 | case TYPE_CODE_STRUCT: | |
2697 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
2698 | break; | |
2699 | case TYPE_CODE_UNION: | |
2700 | printf_filtered ("(TYPE_CODE_UNION)"); | |
2701 | break; | |
2702 | case TYPE_CODE_ENUM: | |
2703 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
2704 | break; | |
2705 | case TYPE_CODE_FUNC: | |
2706 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
2707 | break; | |
2708 | case TYPE_CODE_INT: | |
2709 | printf_filtered ("(TYPE_CODE_INT)"); | |
2710 | break; | |
2711 | case TYPE_CODE_FLT: | |
2712 | printf_filtered ("(TYPE_CODE_FLT)"); | |
2713 | break; | |
2714 | case TYPE_CODE_VOID: | |
2715 | printf_filtered ("(TYPE_CODE_VOID)"); | |
2716 | break; | |
2717 | case TYPE_CODE_SET: | |
2718 | printf_filtered ("(TYPE_CODE_SET)"); | |
2719 | break; | |
2720 | case TYPE_CODE_RANGE: | |
2721 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
2722 | break; | |
2723 | case TYPE_CODE_STRING: | |
2724 | printf_filtered ("(TYPE_CODE_STRING)"); | |
2725 | break; | |
2726 | case TYPE_CODE_ERROR: | |
2727 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
2728 | break; | |
2729 | case TYPE_CODE_MEMBER: | |
2730 | printf_filtered ("(TYPE_CODE_MEMBER)"); | |
2731 | break; | |
2732 | case TYPE_CODE_METHOD: | |
2733 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
2734 | break; | |
2735 | case TYPE_CODE_REF: | |
2736 | printf_filtered ("(TYPE_CODE_REF)"); | |
2737 | break; | |
2738 | case TYPE_CODE_CHAR: | |
2739 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
2740 | break; | |
2741 | case TYPE_CODE_BOOL: | |
2742 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
2743 | break; | |
2744 | case TYPE_CODE_TYPEDEF: | |
2745 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
2746 | break; | |
2747 | default: | |
2748 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
2749 | break; | |
c906108c SS |
2750 | } |
2751 | puts_filtered ("\n"); | |
2752 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
2753 | printfi_filtered (spaces, "objfile "); | |
d4f3574e | 2754 | gdb_print_host_address (TYPE_OBJFILE (type), gdb_stdout); |
c906108c SS |
2755 | printf_filtered ("\n"); |
2756 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 2757 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
2758 | printf_filtered ("\n"); |
2759 | if (TYPE_TARGET_TYPE (type) != NULL) | |
2760 | { | |
2761 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
2762 | } | |
2763 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 2764 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
2765 | printf_filtered ("\n"); |
2766 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 2767 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c SS |
2768 | printf_filtered ("\n"); |
2769 | printfi_filtered (spaces, "flags 0x%x", TYPE_FLAGS (type)); | |
2770 | if (TYPE_FLAGS (type) & TYPE_FLAG_UNSIGNED) | |
2771 | { | |
2772 | puts_filtered (" TYPE_FLAG_UNSIGNED"); | |
2773 | } | |
2774 | if (TYPE_FLAGS (type) & TYPE_FLAG_STUB) | |
2775 | { | |
2776 | puts_filtered (" TYPE_FLAG_STUB"); | |
2777 | } | |
2778 | puts_filtered ("\n"); | |
2779 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 2780 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
2781 | puts_filtered ("\n"); |
2782 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
2783 | { | |
2784 | printfi_filtered (spaces + 2, | |
2785 | "[%d] bitpos %d bitsize %d type ", | |
2786 | idx, TYPE_FIELD_BITPOS (type, idx), | |
2787 | TYPE_FIELD_BITSIZE (type, idx)); | |
d4f3574e | 2788 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
2789 | printf_filtered (" name '%s' (", |
2790 | TYPE_FIELD_NAME (type, idx) != NULL | |
2791 | ? TYPE_FIELD_NAME (type, idx) | |
2792 | : "<NULL>"); | |
d4f3574e | 2793 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
2794 | printf_filtered (")\n"); |
2795 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
2796 | { | |
2797 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
2798 | } | |
2799 | } | |
2800 | printfi_filtered (spaces, "vptr_basetype "); | |
d4f3574e | 2801 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); |
c906108c SS |
2802 | puts_filtered ("\n"); |
2803 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
2804 | { | |
2805 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
2806 | } | |
2807 | printfi_filtered (spaces, "vptr_fieldno %d\n", TYPE_VPTR_FIELDNO (type)); | |
2808 | switch (TYPE_CODE (type)) | |
2809 | { | |
c5aa993b JM |
2810 | case TYPE_CODE_METHOD: |
2811 | case TYPE_CODE_FUNC: | |
2812 | printfi_filtered (spaces, "arg_types "); | |
d4f3574e | 2813 | gdb_print_host_address (TYPE_ARG_TYPES (type), gdb_stdout); |
c5aa993b JM |
2814 | puts_filtered ("\n"); |
2815 | print_arg_types (TYPE_ARG_TYPES (type), spaces); | |
2816 | break; | |
c906108c | 2817 | |
c5aa993b JM |
2818 | case TYPE_CODE_STRUCT: |
2819 | printfi_filtered (spaces, "cplus_stuff "); | |
d4f3574e | 2820 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), gdb_stdout); |
c5aa993b JM |
2821 | puts_filtered ("\n"); |
2822 | print_cplus_stuff (type, spaces); | |
2823 | break; | |
c906108c | 2824 | |
c5aa993b JM |
2825 | default: |
2826 | /* We have to pick one of the union types to be able print and test | |
2827 | the value. Pick cplus_struct_type, even though we know it isn't | |
2828 | any particular one. */ | |
2829 | printfi_filtered (spaces, "type_specific "); | |
d4f3574e | 2830 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), gdb_stdout); |
c5aa993b JM |
2831 | if (TYPE_CPLUS_SPECIFIC (type) != NULL) |
2832 | { | |
2833 | printf_filtered (" (unknown data form)"); | |
2834 | } | |
2835 | printf_filtered ("\n"); | |
2836 | break; | |
c906108c SS |
2837 | |
2838 | } | |
2839 | if (spaces == 0) | |
2840 | obstack_free (&dont_print_type_obstack, NULL); | |
2841 | } | |
2842 | ||
c906108c SS |
2843 | static void build_gdbtypes PARAMS ((void)); |
2844 | static void | |
2845 | build_gdbtypes () | |
2846 | { | |
2847 | builtin_type_void = | |
2848 | init_type (TYPE_CODE_VOID, 1, | |
2849 | 0, | |
2850 | "void", (struct objfile *) NULL); | |
2851 | builtin_type_char = | |
2852 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
2853 | 0, | |
2854 | "char", (struct objfile *) NULL); | |
2855 | TYPE_FLAGS (builtin_type_char) |= TYPE_FLAG_NOSIGN; | |
c5aa993b | 2856 | builtin_type_true_char = |
9e0b60a8 JM |
2857 | init_type (TYPE_CODE_CHAR, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
2858 | 0, | |
2859 | "true character", (struct objfile *) NULL); | |
c906108c SS |
2860 | builtin_type_signed_char = |
2861 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
2862 | 0, | |
2863 | "signed char", (struct objfile *) NULL); | |
2864 | builtin_type_unsigned_char = | |
2865 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
2866 | TYPE_FLAG_UNSIGNED, | |
2867 | "unsigned char", (struct objfile *) NULL); | |
2868 | builtin_type_short = | |
2869 | init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT, | |
2870 | 0, | |
2871 | "short", (struct objfile *) NULL); | |
2872 | builtin_type_unsigned_short = | |
2873 | init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT, | |
2874 | TYPE_FLAG_UNSIGNED, | |
2875 | "unsigned short", (struct objfile *) NULL); | |
2876 | builtin_type_int = | |
2877 | init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, | |
2878 | 0, | |
2879 | "int", (struct objfile *) NULL); | |
2880 | builtin_type_unsigned_int = | |
2881 | init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, | |
2882 | TYPE_FLAG_UNSIGNED, | |
2883 | "unsigned int", (struct objfile *) NULL); | |
2884 | builtin_type_long = | |
2885 | init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, | |
2886 | 0, | |
2887 | "long", (struct objfile *) NULL); | |
2888 | builtin_type_unsigned_long = | |
2889 | init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, | |
2890 | TYPE_FLAG_UNSIGNED, | |
2891 | "unsigned long", (struct objfile *) NULL); | |
2892 | builtin_type_long_long = | |
2893 | init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, | |
2894 | 0, | |
2895 | "long long", (struct objfile *) NULL); | |
c5aa993b | 2896 | builtin_type_unsigned_long_long = |
c906108c SS |
2897 | init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, |
2898 | TYPE_FLAG_UNSIGNED, | |
2899 | "unsigned long long", (struct objfile *) NULL); | |
2900 | builtin_type_float = | |
2901 | init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT, | |
2902 | 0, | |
2903 | "float", (struct objfile *) NULL); | |
2904 | builtin_type_double = | |
2905 | init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, | |
2906 | 0, | |
2907 | "double", (struct objfile *) NULL); | |
2908 | builtin_type_long_double = | |
2909 | init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT, | |
2910 | 0, | |
2911 | "long double", (struct objfile *) NULL); | |
2912 | builtin_type_complex = | |
2913 | init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT, | |
2914 | 0, | |
2915 | "complex", (struct objfile *) NULL); | |
2916 | TYPE_TARGET_TYPE (builtin_type_complex) = builtin_type_float; | |
2917 | builtin_type_double_complex = | |
2918 | init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, | |
2919 | 0, | |
2920 | "double complex", (struct objfile *) NULL); | |
2921 | TYPE_TARGET_TYPE (builtin_type_double_complex) = builtin_type_double; | |
2922 | builtin_type_string = | |
2923 | init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
2924 | 0, | |
2925 | "string", (struct objfile *) NULL); | |
2926 | builtin_type_int8 = | |
2927 | init_type (TYPE_CODE_INT, 8 / 8, | |
2928 | 0, | |
2929 | "int8_t", (struct objfile *) NULL); | |
2930 | builtin_type_uint8 = | |
2931 | init_type (TYPE_CODE_INT, 8 / 8, | |
2932 | TYPE_FLAG_UNSIGNED, | |
2933 | "uint8_t", (struct objfile *) NULL); | |
2934 | builtin_type_int16 = | |
2935 | init_type (TYPE_CODE_INT, 16 / 8, | |
2936 | 0, | |
2937 | "int16_t", (struct objfile *) NULL); | |
2938 | builtin_type_uint16 = | |
2939 | init_type (TYPE_CODE_INT, 16 / 8, | |
2940 | TYPE_FLAG_UNSIGNED, | |
2941 | "uint16_t", (struct objfile *) NULL); | |
2942 | builtin_type_int32 = | |
2943 | init_type (TYPE_CODE_INT, 32 / 8, | |
2944 | 0, | |
2945 | "int32_t", (struct objfile *) NULL); | |
2946 | builtin_type_uint32 = | |
2947 | init_type (TYPE_CODE_INT, 32 / 8, | |
2948 | TYPE_FLAG_UNSIGNED, | |
2949 | "uint32_t", (struct objfile *) NULL); | |
2950 | builtin_type_int64 = | |
2951 | init_type (TYPE_CODE_INT, 64 / 8, | |
2952 | 0, | |
2953 | "int64_t", (struct objfile *) NULL); | |
2954 | builtin_type_uint64 = | |
2955 | init_type (TYPE_CODE_INT, 64 / 8, | |
2956 | TYPE_FLAG_UNSIGNED, | |
2957 | "uint64_t", (struct objfile *) NULL); | |
2958 | builtin_type_bool = | |
2959 | init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
2960 | 0, | |
2961 | "bool", (struct objfile *) NULL); | |
2962 | ||
c5aa993b | 2963 | /* Add user knob for controlling resolution of opaque types */ |
c906108c | 2964 | add_show_from_set |
c5aa993b | 2965 | (add_set_cmd ("opaque-type-resolution", class_support, var_boolean, (char *) &opaque_type_resolution, |
c906108c SS |
2966 | "Set resolution of opaque struct/class/union types (if set before loading symbols).", |
2967 | &setlist), | |
2968 | &showlist); | |
2969 | opaque_type_resolution = 1; | |
2970 | ||
917317f4 JM |
2971 | |
2972 | /* Build SIMD types. */ | |
2973 | builtin_type_v4sf | |
2974 | = init_simd_type ("__builtin_v4sf", builtin_type_float, "f", 4); | |
c2d11a7d JM |
2975 | builtin_type_v4si |
2976 | = init_simd_type ("__builtin_v4si", builtin_type_int32, "f", 4); | |
2977 | builtin_type_v8qi | |
2978 | = init_simd_type ("__builtin_v8qi", builtin_type_int8, "f", 8); | |
2979 | builtin_type_v4hi | |
2980 | = init_simd_type ("__builtin_v4hi", builtin_type_int16, "f", 4); | |
2981 | builtin_type_v2si | |
2982 | = init_simd_type ("__builtin_v2si", builtin_type_int32, "f", 2); | |
c906108c SS |
2983 | } |
2984 | ||
2985 | ||
2986 | extern void _initialize_gdbtypes PARAMS ((void)); | |
2987 | void | |
2988 | _initialize_gdbtypes () | |
2989 | { | |
2990 | build_gdbtypes (); | |
0f71a2f6 JM |
2991 | |
2992 | /* FIXME - For the moment, handle types by swapping them in and out. | |
2993 | Should be using the per-architecture data-pointer and a large | |
2994 | struct. */ | |
c5aa993b JM |
2995 | register_gdbarch_swap (&builtin_type_void, sizeof (struct type *), NULL); |
2996 | register_gdbarch_swap (&builtin_type_char, sizeof (struct type *), NULL); | |
2997 | register_gdbarch_swap (&builtin_type_short, sizeof (struct type *), NULL); | |
2998 | register_gdbarch_swap (&builtin_type_int, sizeof (struct type *), NULL); | |
2999 | register_gdbarch_swap (&builtin_type_long, sizeof (struct type *), NULL); | |
3000 | register_gdbarch_swap (&builtin_type_long_long, sizeof (struct type *), NULL); | |
3001 | register_gdbarch_swap (&builtin_type_signed_char, sizeof (struct type *), NULL); | |
3002 | register_gdbarch_swap (&builtin_type_unsigned_char, sizeof (struct type *), NULL); | |
3003 | register_gdbarch_swap (&builtin_type_unsigned_short, sizeof (struct type *), NULL); | |
3004 | register_gdbarch_swap (&builtin_type_unsigned_int, sizeof (struct type *), NULL); | |
3005 | register_gdbarch_swap (&builtin_type_unsigned_long, sizeof (struct type *), NULL); | |
3006 | register_gdbarch_swap (&builtin_type_unsigned_long_long, sizeof (struct type *), NULL); | |
3007 | register_gdbarch_swap (&builtin_type_float, sizeof (struct type *), NULL); | |
3008 | register_gdbarch_swap (&builtin_type_double, sizeof (struct type *), NULL); | |
3009 | register_gdbarch_swap (&builtin_type_long_double, sizeof (struct type *), NULL); | |
3010 | register_gdbarch_swap (&builtin_type_complex, sizeof (struct type *), NULL); | |
3011 | register_gdbarch_swap (&builtin_type_double_complex, sizeof (struct type *), NULL); | |
3012 | register_gdbarch_swap (&builtin_type_string, sizeof (struct type *), NULL); | |
3013 | register_gdbarch_swap (&builtin_type_int8, sizeof (struct type *), NULL); | |
3014 | register_gdbarch_swap (&builtin_type_uint8, sizeof (struct type *), NULL); | |
3015 | register_gdbarch_swap (&builtin_type_int16, sizeof (struct type *), NULL); | |
3016 | register_gdbarch_swap (&builtin_type_uint16, sizeof (struct type *), NULL); | |
3017 | register_gdbarch_swap (&builtin_type_int32, sizeof (struct type *), NULL); | |
3018 | register_gdbarch_swap (&builtin_type_uint32, sizeof (struct type *), NULL); | |
3019 | register_gdbarch_swap (&builtin_type_int64, sizeof (struct type *), NULL); | |
3020 | register_gdbarch_swap (&builtin_type_uint64, sizeof (struct type *), NULL); | |
917317f4 | 3021 | register_gdbarch_swap (&builtin_type_v4sf, sizeof (struct type *), NULL); |
c2d11a7d JM |
3022 | register_gdbarch_swap (&builtin_type_v4si, sizeof (struct type *), NULL); |
3023 | register_gdbarch_swap (&builtin_type_v8qi, sizeof (struct type *), NULL); | |
3024 | register_gdbarch_swap (&builtin_type_v4hi, sizeof (struct type *), NULL); | |
3025 | register_gdbarch_swap (&builtin_type_v2si, sizeof (struct type *), NULL); | |
0f71a2f6 | 3026 | register_gdbarch_swap (NULL, 0, build_gdbtypes); |
c906108c | 3027 | } |