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