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