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1 | /* Support routines for manipulating internal types for GDB. | |
2 | Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002 | |
3 | Free Software Foundation, Inc. | |
4 | Contributed by Cygnus Support, using pieces from other GDB modules. | |
5 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
22 | ||
23 | #include "defs.h" | |
24 | #include "gdb_string.h" | |
25 | #include "bfd.h" | |
26 | #include "symtab.h" | |
27 | #include "symfile.h" | |
28 | #include "objfiles.h" | |
29 | #include "gdbtypes.h" | |
30 | #include "expression.h" | |
31 | #include "language.h" | |
32 | #include "target.h" | |
33 | #include "value.h" | |
34 | #include "demangle.h" | |
35 | #include "complaints.h" | |
36 | #include "gdbcmd.h" | |
37 | #include "wrapper.h" | |
38 | #include "cp-abi.h" | |
39 | #include "gdb_assert.h" | |
40 | ||
41 | /* These variables point to the objects | |
42 | representing the predefined C data types. */ | |
43 | ||
44 | struct type *builtin_type_void; | |
45 | struct type *builtin_type_char; | |
46 | struct type *builtin_type_true_char; | |
47 | struct type *builtin_type_short; | |
48 | struct type *builtin_type_int; | |
49 | struct type *builtin_type_long; | |
50 | struct type *builtin_type_long_long; | |
51 | struct type *builtin_type_signed_char; | |
52 | struct type *builtin_type_unsigned_char; | |
53 | struct type *builtin_type_unsigned_short; | |
54 | struct type *builtin_type_unsigned_int; | |
55 | struct type *builtin_type_unsigned_long; | |
56 | struct type *builtin_type_unsigned_long_long; | |
57 | struct type *builtin_type_float; | |
58 | struct type *builtin_type_double; | |
59 | struct type *builtin_type_long_double; | |
60 | struct type *builtin_type_complex; | |
61 | struct type *builtin_type_double_complex; | |
62 | struct type *builtin_type_string; | |
63 | struct type *builtin_type_int8; | |
64 | struct type *builtin_type_uint8; | |
65 | struct type *builtin_type_int16; | |
66 | struct type *builtin_type_uint16; | |
67 | struct type *builtin_type_int32; | |
68 | struct type *builtin_type_uint32; | |
69 | struct type *builtin_type_int64; | |
70 | struct type *builtin_type_uint64; | |
71 | struct type *builtin_type_int128; | |
72 | struct type *builtin_type_uint128; | |
73 | struct type *builtin_type_bool; | |
74 | ||
75 | /* 128 bit long vector types */ | |
76 | struct type *builtin_type_v4_float; | |
77 | struct type *builtin_type_v4_int32; | |
78 | struct type *builtin_type_v8_int16; | |
79 | struct type *builtin_type_v16_int8; | |
80 | /* 64 bit long vector types */ | |
81 | struct type *builtin_type_v2_float; | |
82 | struct type *builtin_type_v2_int32; | |
83 | struct type *builtin_type_v4_int16; | |
84 | struct type *builtin_type_v8_int8; | |
85 | ||
86 | struct type *builtin_type_v4sf; | |
87 | struct type *builtin_type_v4si; | |
88 | struct type *builtin_type_v16qi; | |
89 | struct type *builtin_type_v8qi; | |
90 | struct type *builtin_type_v8hi; | |
91 | struct type *builtin_type_v4hi; | |
92 | struct type *builtin_type_v2si; | |
93 | struct type *builtin_type_vec128; | |
94 | struct type *builtin_type_ieee_single_big; | |
95 | struct type *builtin_type_ieee_single_little; | |
96 | struct type *builtin_type_ieee_double_big; | |
97 | struct type *builtin_type_ieee_double_little; | |
98 | struct type *builtin_type_ieee_double_littlebyte_bigword; | |
99 | struct type *builtin_type_i387_ext; | |
100 | struct type *builtin_type_m68881_ext; | |
101 | struct type *builtin_type_i960_ext; | |
102 | struct type *builtin_type_m88110_ext; | |
103 | struct type *builtin_type_m88110_harris_ext; | |
104 | struct type *builtin_type_arm_ext_big; | |
105 | struct type *builtin_type_arm_ext_littlebyte_bigword; | |
106 | struct type *builtin_type_ia64_spill_big; | |
107 | struct type *builtin_type_ia64_spill_little; | |
108 | struct type *builtin_type_ia64_quad_big; | |
109 | struct type *builtin_type_ia64_quad_little; | |
110 | struct type *builtin_type_void_data_ptr; | |
111 | struct type *builtin_type_void_func_ptr; | |
112 | struct type *builtin_type_CORE_ADDR; | |
113 | struct type *builtin_type_bfd_vma; | |
114 | ||
115 | int opaque_type_resolution = 1; | |
116 | int overload_debug = 0; | |
117 | ||
118 | struct extra | |
119 | { | |
120 | char str[128]; | |
121 | int len; | |
122 | }; /* maximum extension is 128! FIXME */ | |
123 | ||
124 | static void add_name (struct extra *, char *); | |
125 | static void add_mangled_type (struct extra *, struct type *); | |
126 | #if 0 | |
127 | static void cfront_mangle_name (struct type *, int, int); | |
128 | #endif | |
129 | static void print_bit_vector (B_TYPE *, int); | |
130 | static void print_arg_types (struct type **, int); | |
131 | static void dump_fn_fieldlists (struct type *, int); | |
132 | static void print_cplus_stuff (struct type *, int); | |
133 | static void virtual_base_list_aux (struct type *dclass); | |
134 | ||
135 | ||
136 | /* Alloc a new type structure and fill it with some defaults. If | |
137 | OBJFILE is non-NULL, then allocate the space for the type structure | |
138 | in that objfile's type_obstack. */ | |
139 | ||
140 | struct type * | |
141 | alloc_type (struct objfile *objfile) | |
142 | { | |
143 | register struct type *type; | |
144 | ||
145 | /* Alloc the structure and start off with all fields zeroed. */ | |
146 | ||
147 | if (objfile == NULL) | |
148 | { | |
149 | type = (struct type *) xmalloc (sizeof (struct type)); | |
150 | } | |
151 | else | |
152 | { | |
153 | type = (struct type *) obstack_alloc (&objfile->type_obstack, | |
154 | sizeof (struct type)); | |
155 | OBJSTAT (objfile, n_types++); | |
156 | } | |
157 | memset ((char *) type, 0, sizeof (struct type)); | |
158 | ||
159 | /* Initialize the fields that might not be zero. */ | |
160 | ||
161 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
162 | TYPE_OBJFILE (type) = objfile; | |
163 | TYPE_VPTR_FIELDNO (type) = -1; | |
164 | TYPE_CV_TYPE (type) = type; /* chain back to itself */ | |
165 | TYPE_AS_TYPE (type) = type; /* ditto */ | |
166 | ||
167 | return (type); | |
168 | } | |
169 | ||
170 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points | |
171 | to a pointer to memory where the pointer type should be stored. | |
172 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
173 | We allocate new memory if needed. */ | |
174 | ||
175 | struct type * | |
176 | make_pointer_type (struct type *type, struct type **typeptr) | |
177 | { | |
178 | register struct type *ntype; /* New type */ | |
179 | struct objfile *objfile; | |
180 | ||
181 | ntype = TYPE_POINTER_TYPE (type); | |
182 | ||
183 | if (ntype) | |
184 | { | |
185 | if (typeptr == 0) | |
186 | return ntype; /* Don't care about alloc, and have new type. */ | |
187 | else if (*typeptr == 0) | |
188 | { | |
189 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ | |
190 | return ntype; | |
191 | } | |
192 | } | |
193 | ||
194 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
195 | { | |
196 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
197 | if (typeptr) | |
198 | *typeptr = ntype; | |
199 | } | |
200 | else | |
201 | /* We have storage, but need to reset it. */ | |
202 | { | |
203 | ntype = *typeptr; | |
204 | objfile = TYPE_OBJFILE (ntype); | |
205 | memset ((char *) ntype, 0, sizeof (struct type)); | |
206 | TYPE_OBJFILE (ntype) = objfile; | |
207 | } | |
208 | ||
209 | TYPE_TARGET_TYPE (ntype) = type; | |
210 | TYPE_POINTER_TYPE (type) = ntype; | |
211 | ||
212 | /* FIXME! Assume the machine has only one representation for pointers! */ | |
213 | ||
214 | TYPE_LENGTH (ntype) = TARGET_PTR_BIT / TARGET_CHAR_BIT; | |
215 | TYPE_CODE (ntype) = TYPE_CODE_PTR; | |
216 | ||
217 | /* Mark pointers as unsigned. The target converts between pointers | |
218 | and addresses (CORE_ADDRs) using POINTER_TO_ADDRESS() and | |
219 | ADDRESS_TO_POINTER(). */ | |
220 | TYPE_FLAGS (ntype) |= TYPE_FLAG_UNSIGNED; | |
221 | ||
222 | if (!TYPE_POINTER_TYPE (type)) /* Remember it, if don't have one. */ | |
223 | TYPE_POINTER_TYPE (type) = ntype; | |
224 | ||
225 | return ntype; | |
226 | } | |
227 | ||
228 | /* Given a type TYPE, return a type of pointers to that type. | |
229 | May need to construct such a type if this is the first use. */ | |
230 | ||
231 | struct type * | |
232 | lookup_pointer_type (struct type *type) | |
233 | { | |
234 | return make_pointer_type (type, (struct type **) 0); | |
235 | } | |
236 | ||
237 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, points | |
238 | to a pointer to memory where the reference type should be stored. | |
239 | If *TYPEPTR is zero, update it to point to the reference type we return. | |
240 | We allocate new memory if needed. */ | |
241 | ||
242 | struct type * | |
243 | make_reference_type (struct type *type, struct type **typeptr) | |
244 | { | |
245 | register struct type *ntype; /* New type */ | |
246 | struct objfile *objfile; | |
247 | ||
248 | ntype = TYPE_REFERENCE_TYPE (type); | |
249 | ||
250 | if (ntype) | |
251 | { | |
252 | if (typeptr == 0) | |
253 | return ntype; /* Don't care about alloc, and have new type. */ | |
254 | else if (*typeptr == 0) | |
255 | { | |
256 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ | |
257 | return ntype; | |
258 | } | |
259 | } | |
260 | ||
261 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
262 | { | |
263 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
264 | if (typeptr) | |
265 | *typeptr = ntype; | |
266 | } | |
267 | else | |
268 | /* We have storage, but need to reset it. */ | |
269 | { | |
270 | ntype = *typeptr; | |
271 | objfile = TYPE_OBJFILE (ntype); | |
272 | memset ((char *) ntype, 0, sizeof (struct type)); | |
273 | TYPE_OBJFILE (ntype) = objfile; | |
274 | } | |
275 | ||
276 | TYPE_TARGET_TYPE (ntype) = type; | |
277 | TYPE_REFERENCE_TYPE (type) = ntype; | |
278 | ||
279 | /* FIXME! Assume the machine has only one representation for references, | |
280 | and that it matches the (only) representation for pointers! */ | |
281 | ||
282 | TYPE_LENGTH (ntype) = TARGET_PTR_BIT / TARGET_CHAR_BIT; | |
283 | TYPE_CODE (ntype) = TYPE_CODE_REF; | |
284 | ||
285 | if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */ | |
286 | TYPE_REFERENCE_TYPE (type) = ntype; | |
287 | ||
288 | return ntype; | |
289 | } | |
290 | ||
291 | /* Same as above, but caller doesn't care about memory allocation details. */ | |
292 | ||
293 | struct type * | |
294 | lookup_reference_type (struct type *type) | |
295 | { | |
296 | return make_reference_type (type, (struct type **) 0); | |
297 | } | |
298 | ||
299 | /* Lookup a function type that returns type TYPE. TYPEPTR, if nonzero, points | |
300 | to a pointer to memory where the function type should be stored. | |
301 | If *TYPEPTR is zero, update it to point to the function type we return. | |
302 | We allocate new memory if needed. */ | |
303 | ||
304 | struct type * | |
305 | make_function_type (struct type *type, struct type **typeptr) | |
306 | { | |
307 | register struct type *ntype; /* New type */ | |
308 | struct objfile *objfile; | |
309 | ||
310 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
311 | { | |
312 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
313 | if (typeptr) | |
314 | *typeptr = ntype; | |
315 | } | |
316 | else | |
317 | /* We have storage, but need to reset it. */ | |
318 | { | |
319 | ntype = *typeptr; | |
320 | objfile = TYPE_OBJFILE (ntype); | |
321 | memset ((char *) ntype, 0, sizeof (struct type)); | |
322 | TYPE_OBJFILE (ntype) = objfile; | |
323 | } | |
324 | ||
325 | TYPE_TARGET_TYPE (ntype) = type; | |
326 | ||
327 | TYPE_LENGTH (ntype) = 1; | |
328 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
329 | ||
330 | return ntype; | |
331 | } | |
332 | ||
333 | ||
334 | /* Given a type TYPE, return a type of functions that return that type. | |
335 | May need to construct such a type if this is the first use. */ | |
336 | ||
337 | struct type * | |
338 | lookup_function_type (struct type *type) | |
339 | { | |
340 | return make_function_type (type, (struct type **) 0); | |
341 | } | |
342 | ||
343 | /* Identify address space identifier by name -- | |
344 | return the integer flag defined in gdbtypes.h. */ | |
345 | extern int | |
346 | address_space_name_to_int (char *space_identifier) | |
347 | { | |
348 | /* Check for known address space delimiters. */ | |
349 | if (!strcmp (space_identifier, "code")) | |
350 | return TYPE_FLAG_CODE_SPACE; | |
351 | else if (!strcmp (space_identifier, "data")) | |
352 | return TYPE_FLAG_DATA_SPACE; | |
353 | else | |
354 | error ("Unknown address space specifier: \"%s\"", space_identifier); | |
355 | } | |
356 | ||
357 | /* Identify address space identifier by integer flag as defined in | |
358 | gdbtypes.h -- return the string version of the adress space name. */ | |
359 | ||
360 | extern char * | |
361 | address_space_int_to_name (int space_flag) | |
362 | { | |
363 | if (space_flag & TYPE_FLAG_CODE_SPACE) | |
364 | return "code"; | |
365 | else if (space_flag & TYPE_FLAG_DATA_SPACE) | |
366 | return "data"; | |
367 | else | |
368 | return NULL; | |
369 | } | |
370 | ||
371 | /* Make an address-space-delimited variant of a type -- a type that | |
372 | is identical to the one supplied except that it has an address | |
373 | space attribute attached to it (such as "code" or "data"). | |
374 | ||
375 | This is for Harvard architectures. */ | |
376 | ||
377 | struct type * | |
378 | make_type_with_address_space (struct type *type, int space_flag) | |
379 | { | |
380 | struct type *ntype; | |
381 | ||
382 | ntype = type; | |
383 | do { | |
384 | if ((ntype->flags & space_flag) != 0) | |
385 | return ntype; | |
386 | ntype = TYPE_AS_TYPE (ntype); | |
387 | } while (ntype != type); | |
388 | ||
389 | /* Create a new, duplicate type. */ | |
390 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
391 | /* Copy original type. */ | |
392 | memcpy ((char *) ntype, (char *) type, sizeof (struct type)); | |
393 | ||
394 | /* Pointers or references to the original type are not relevant to | |
395 | the new type; but if the original type is a pointer, the new type | |
396 | points to the same thing (so TYPE_TARGET_TYPE remains unchanged). */ | |
397 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; | |
398 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
399 | TYPE_CV_TYPE (ntype) = ntype; | |
400 | ||
401 | /* Chain the new address-space-specific type to the old type. */ | |
402 | ntype->as_type = type->as_type; | |
403 | type->as_type = ntype; | |
404 | ||
405 | /* Now set the address-space flag, and return the new type. */ | |
406 | ntype->flags |= space_flag; | |
407 | return ntype; | |
408 | } | |
409 | ||
410 | ||
411 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
412 | one supplied except that it may have const or volatile attributes | |
413 | CNST is a flag for setting the const attribute | |
414 | VOLTL is a flag for setting the volatile attribute | |
415 | TYPE is the base type whose variant we are creating. | |
416 | TYPEPTR, if nonzero, points | |
417 | to a pointer to memory where the reference type should be stored. | |
418 | If *TYPEPTR is zero, update it to point to the reference type we return. | |
419 | We allocate new memory if needed. */ | |
420 | ||
421 | struct type * | |
422 | make_cv_type (int cnst, int voltl, struct type *type, struct type **typeptr) | |
423 | { | |
424 | register struct type *ntype; /* New type */ | |
425 | register struct type *tmp_type = type; /* tmp type */ | |
426 | struct objfile *objfile; | |
427 | ||
428 | ntype = TYPE_CV_TYPE (type); | |
429 | ||
430 | while (ntype != type) | |
431 | { | |
432 | if ((TYPE_CONST (ntype) == cnst) && | |
433 | (TYPE_VOLATILE (ntype) == voltl)) | |
434 | { | |
435 | if (typeptr == 0) | |
436 | return ntype; | |
437 | else if (*typeptr == 0) | |
438 | { | |
439 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ | |
440 | return ntype; | |
441 | } | |
442 | } | |
443 | tmp_type = ntype; | |
444 | ntype = TYPE_CV_TYPE (ntype); | |
445 | } | |
446 | ||
447 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
448 | { | |
449 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
450 | if (typeptr) | |
451 | *typeptr = ntype; | |
452 | } | |
453 | else | |
454 | /* We have storage, but need to reset it. */ | |
455 | { | |
456 | ntype = *typeptr; | |
457 | objfile = TYPE_OBJFILE (ntype); | |
458 | /* memset ((char *) ntype, 0, sizeof (struct type)); */ | |
459 | TYPE_OBJFILE (ntype) = objfile; | |
460 | } | |
461 | ||
462 | /* Copy original type */ | |
463 | memcpy ((char *) ntype, (char *) type, sizeof (struct type)); | |
464 | /* But zero out fields that shouldn't be copied */ | |
465 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; /* Need new pointer kind */ | |
466 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; /* Need new referene kind */ | |
467 | TYPE_AS_TYPE (ntype) = ntype; /* Need new address-space kind. */ | |
468 | /* Note: TYPE_TARGET_TYPE can be left as is */ | |
469 | ||
470 | /* Set flags appropriately */ | |
471 | if (cnst) | |
472 | TYPE_FLAGS (ntype) |= TYPE_FLAG_CONST; | |
473 | else | |
474 | TYPE_FLAGS (ntype) &= ~TYPE_FLAG_CONST; | |
475 | ||
476 | if (voltl) | |
477 | TYPE_FLAGS (ntype) |= TYPE_FLAG_VOLATILE; | |
478 | else | |
479 | TYPE_FLAGS (ntype) &= ~TYPE_FLAG_VOLATILE; | |
480 | ||
481 | /* Fix the chain of cv variants */ | |
482 | TYPE_CV_TYPE (ntype) = type; | |
483 | TYPE_CV_TYPE (tmp_type) = ntype; | |
484 | ||
485 | return ntype; | |
486 | } | |
487 | ||
488 | /* When reading in a class type, we may have created references to | |
489 | cv-qualified versions of the type (in method arguments, for | |
490 | instance). Update everything on the cv ring from the primary | |
491 | type TYPE. | |
492 | ||
493 | The only reason we do not need to do the same thing for address | |
494 | spaces is that type readers do not create address space qualified | |
495 | types. */ | |
496 | void | |
497 | finish_cv_type (struct type *type) | |
498 | { | |
499 | struct type *ntype, *cv_type, *ptr_type, *ref_type; | |
500 | int cv_flags; | |
501 | ||
502 | gdb_assert (!TYPE_CONST (type) && !TYPE_VOLATILE (type)); | |
503 | ||
504 | ntype = type; | |
505 | while ((ntype = TYPE_CV_TYPE (ntype)) != type) | |
506 | { | |
507 | /* Save cv_flags. */ | |
508 | cv_flags = TYPE_FLAGS (ntype) & (TYPE_FLAG_VOLATILE | TYPE_FLAG_CONST); | |
509 | ||
510 | /* If any reference or pointer types were created, save them too. */ | |
511 | ptr_type = TYPE_POINTER_TYPE (ntype); | |
512 | ref_type = TYPE_REFERENCE_TYPE (ntype); | |
513 | ||
514 | /* Don't disturb the CV chain. */ | |
515 | cv_type = TYPE_CV_TYPE (ntype); | |
516 | ||
517 | /* Verify that we haven't added any address-space qualified types, | |
518 | for the future. */ | |
519 | gdb_assert (ntype == TYPE_AS_TYPE (ntype)); | |
520 | ||
521 | /* Copy original type */ | |
522 | memcpy ((char *) ntype, (char *) type, sizeof (struct type)); | |
523 | ||
524 | /* Restore everything. */ | |
525 | TYPE_POINTER_TYPE (ntype) = ptr_type; | |
526 | TYPE_REFERENCE_TYPE (ntype) = ref_type; | |
527 | TYPE_CV_TYPE (ntype) = cv_type; | |
528 | TYPE_FLAGS (ntype) = TYPE_FLAGS (ntype) | cv_flags; | |
529 | ||
530 | TYPE_AS_TYPE (ntype) = ntype; | |
531 | } | |
532 | } | |
533 | ||
534 | /* Replace the contents of ntype with the type *type. | |
535 | ||
536 | In order to build recursive types, it's inevitable that we'll need | |
537 | to update types in place --- but this sort of indiscriminate | |
538 | smashing is ugly, and needs to be replaced with something more | |
539 | controlled. For example, Daniel Jacobowitz has suggested moving | |
540 | the fields common to a set of c/v variants into their own object, | |
541 | which the variants would share. | |
542 | ||
543 | This function does not handle the replacement type being | |
544 | cv-qualified; it could be easily fixed to, but it would be better | |
545 | to just change the whole approach. */ | |
546 | void | |
547 | replace_type (struct type *ntype, struct type *type) | |
548 | { | |
549 | struct type *cv_chain, *as_chain, *ptr, *ref; | |
550 | ||
551 | cv_chain = TYPE_CV_TYPE (ntype); | |
552 | as_chain = TYPE_AS_TYPE (ntype); | |
553 | ptr = TYPE_POINTER_TYPE (ntype); | |
554 | ref = TYPE_REFERENCE_TYPE (ntype); | |
555 | ||
556 | *ntype = *type; | |
557 | ||
558 | TYPE_POINTER_TYPE (ntype) = ptr; | |
559 | TYPE_REFERENCE_TYPE (ntype) = ref; | |
560 | TYPE_CV_TYPE (ntype) = cv_chain; | |
561 | TYPE_AS_TYPE (ntype) = as_chain; | |
562 | ||
563 | finish_cv_type (ntype); | |
564 | } | |
565 | ||
566 | /* Implement direct support for MEMBER_TYPE in GNU C++. | |
567 | May need to construct such a type if this is the first use. | |
568 | The TYPE is the type of the member. The DOMAIN is the type | |
569 | of the aggregate that the member belongs to. */ | |
570 | ||
571 | struct type * | |
572 | lookup_member_type (struct type *type, struct type *domain) | |
573 | { | |
574 | register struct type *mtype; | |
575 | ||
576 | mtype = alloc_type (TYPE_OBJFILE (type)); | |
577 | smash_to_member_type (mtype, domain, type); | |
578 | return (mtype); | |
579 | } | |
580 | ||
581 | /* Allocate a stub method whose return type is TYPE. | |
582 | This apparently happens for speed of symbol reading, since parsing | |
583 | out the arguments to the method is cpu-intensive, the way we are doing | |
584 | it. So, we will fill in arguments later. | |
585 | This always returns a fresh type. */ | |
586 | ||
587 | struct type * | |
588 | allocate_stub_method (struct type *type) | |
589 | { | |
590 | struct type *mtype; | |
591 | ||
592 | mtype = init_type (TYPE_CODE_METHOD, 1, TYPE_FLAG_STUB, NULL, | |
593 | TYPE_OBJFILE (type)); | |
594 | TYPE_TARGET_TYPE (mtype) = type; | |
595 | /* _DOMAIN_TYPE (mtype) = unknown yet */ | |
596 | /* _ARG_TYPES (mtype) = unknown yet */ | |
597 | return (mtype); | |
598 | } | |
599 | ||
600 | /* Create a range type using either a blank type supplied in RESULT_TYPE, | |
601 | or creating a new type, inheriting the objfile from INDEX_TYPE. | |
602 | ||
603 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND to | |
604 | HIGH_BOUND, inclusive. | |
605 | ||
606 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
607 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
608 | ||
609 | struct type * | |
610 | create_range_type (struct type *result_type, struct type *index_type, | |
611 | int low_bound, int high_bound) | |
612 | { | |
613 | if (result_type == NULL) | |
614 | { | |
615 | result_type = alloc_type (TYPE_OBJFILE (index_type)); | |
616 | } | |
617 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; | |
618 | TYPE_TARGET_TYPE (result_type) = index_type; | |
619 | if (TYPE_STUB (index_type)) | |
620 | TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB; | |
621 | else | |
622 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
623 | TYPE_NFIELDS (result_type) = 2; | |
624 | TYPE_FIELDS (result_type) = (struct field *) | |
625 | TYPE_ALLOC (result_type, 2 * sizeof (struct field)); | |
626 | memset (TYPE_FIELDS (result_type), 0, 2 * sizeof (struct field)); | |
627 | TYPE_FIELD_BITPOS (result_type, 0) = low_bound; | |
628 | TYPE_FIELD_BITPOS (result_type, 1) = high_bound; | |
629 | TYPE_FIELD_TYPE (result_type, 0) = builtin_type_int; /* FIXME */ | |
630 | TYPE_FIELD_TYPE (result_type, 1) = builtin_type_int; /* FIXME */ | |
631 | ||
632 | if (low_bound >= 0) | |
633 | TYPE_FLAGS (result_type) |= TYPE_FLAG_UNSIGNED; | |
634 | ||
635 | return (result_type); | |
636 | } | |
637 | ||
638 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type TYPE. | |
639 | Return 1 of type is a range type, 0 if it is discrete (and bounds | |
640 | will fit in LONGEST), or -1 otherwise. */ | |
641 | ||
642 | int | |
643 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) | |
644 | { | |
645 | CHECK_TYPEDEF (type); | |
646 | switch (TYPE_CODE (type)) | |
647 | { | |
648 | case TYPE_CODE_RANGE: | |
649 | *lowp = TYPE_LOW_BOUND (type); | |
650 | *highp = TYPE_HIGH_BOUND (type); | |
651 | return 1; | |
652 | case TYPE_CODE_ENUM: | |
653 | if (TYPE_NFIELDS (type) > 0) | |
654 | { | |
655 | /* The enums may not be sorted by value, so search all | |
656 | entries */ | |
657 | int i; | |
658 | ||
659 | *lowp = *highp = TYPE_FIELD_BITPOS (type, 0); | |
660 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
661 | { | |
662 | if (TYPE_FIELD_BITPOS (type, i) < *lowp) | |
663 | *lowp = TYPE_FIELD_BITPOS (type, i); | |
664 | if (TYPE_FIELD_BITPOS (type, i) > *highp) | |
665 | *highp = TYPE_FIELD_BITPOS (type, i); | |
666 | } | |
667 | ||
668 | /* Set unsigned indicator if warranted. */ | |
669 | if (*lowp >= 0) | |
670 | { | |
671 | TYPE_FLAGS (type) |= TYPE_FLAG_UNSIGNED; | |
672 | } | |
673 | } | |
674 | else | |
675 | { | |
676 | *lowp = 0; | |
677 | *highp = -1; | |
678 | } | |
679 | return 0; | |
680 | case TYPE_CODE_BOOL: | |
681 | *lowp = 0; | |
682 | *highp = 1; | |
683 | return 0; | |
684 | case TYPE_CODE_INT: | |
685 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ | |
686 | return -1; | |
687 | if (!TYPE_UNSIGNED (type)) | |
688 | { | |
689 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); | |
690 | *highp = -*lowp - 1; | |
691 | return 0; | |
692 | } | |
693 | /* ... fall through for unsigned ints ... */ | |
694 | case TYPE_CODE_CHAR: | |
695 | *lowp = 0; | |
696 | /* This round-about calculation is to avoid shifting by | |
697 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work | |
698 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ | |
699 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); | |
700 | *highp = (*highp - 1) | *highp; | |
701 | return 0; | |
702 | default: | |
703 | return -1; | |
704 | } | |
705 | } | |
706 | ||
707 | /* Create an array type using either a blank type supplied in RESULT_TYPE, | |
708 | or creating a new type, inheriting the objfile from RANGE_TYPE. | |
709 | ||
710 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
711 | RANGE_TYPE. | |
712 | ||
713 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
714 | sure it is TYPE_CODE_UNDEF before we bash it into an array type? */ | |
715 | ||
716 | struct type * | |
717 | create_array_type (struct type *result_type, struct type *element_type, | |
718 | struct type *range_type) | |
719 | { | |
720 | LONGEST low_bound, high_bound; | |
721 | ||
722 | if (result_type == NULL) | |
723 | { | |
724 | result_type = alloc_type (TYPE_OBJFILE (range_type)); | |
725 | } | |
726 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; | |
727 | TYPE_TARGET_TYPE (result_type) = element_type; | |
728 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
729 | low_bound = high_bound = 0; | |
730 | CHECK_TYPEDEF (element_type); | |
731 | TYPE_LENGTH (result_type) = | |
732 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
733 | TYPE_NFIELDS (result_type) = 1; | |
734 | TYPE_FIELDS (result_type) = | |
735 | (struct field *) TYPE_ALLOC (result_type, sizeof (struct field)); | |
736 | memset (TYPE_FIELDS (result_type), 0, sizeof (struct field)); | |
737 | TYPE_FIELD_TYPE (result_type, 0) = range_type; | |
738 | TYPE_VPTR_FIELDNO (result_type) = -1; | |
739 | ||
740 | /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays */ | |
741 | if (TYPE_LENGTH (result_type) == 0) | |
742 | TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB; | |
743 | ||
744 | return (result_type); | |
745 | } | |
746 | ||
747 | /* Create a string type using either a blank type supplied in RESULT_TYPE, | |
748 | or creating a new type. String types are similar enough to array of | |
749 | char types that we can use create_array_type to build the basic type | |
750 | and then bash it into a string type. | |
751 | ||
752 | For fixed length strings, the range type contains 0 as the lower | |
753 | bound and the length of the string minus one as the upper bound. | |
754 | ||
755 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
756 | sure it is TYPE_CODE_UNDEF before we bash it into a string type? */ | |
757 | ||
758 | struct type * | |
759 | create_string_type (struct type *result_type, struct type *range_type) | |
760 | { | |
761 | result_type = create_array_type (result_type, | |
762 | *current_language->string_char_type, | |
763 | range_type); | |
764 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
765 | return (result_type); | |
766 | } | |
767 | ||
768 | struct type * | |
769 | create_set_type (struct type *result_type, struct type *domain_type) | |
770 | { | |
771 | LONGEST low_bound, high_bound, bit_length; | |
772 | if (result_type == NULL) | |
773 | { | |
774 | result_type = alloc_type (TYPE_OBJFILE (domain_type)); | |
775 | } | |
776 | TYPE_CODE (result_type) = TYPE_CODE_SET; | |
777 | TYPE_NFIELDS (result_type) = 1; | |
778 | TYPE_FIELDS (result_type) = (struct field *) | |
779 | TYPE_ALLOC (result_type, 1 * sizeof (struct field)); | |
780 | memset (TYPE_FIELDS (result_type), 0, sizeof (struct field)); | |
781 | ||
782 | if (!TYPE_STUB (domain_type)) | |
783 | { | |
784 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) | |
785 | low_bound = high_bound = 0; | |
786 | bit_length = high_bound - low_bound + 1; | |
787 | TYPE_LENGTH (result_type) | |
788 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
789 | } | |
790 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
791 | ||
792 | if (low_bound >= 0) | |
793 | TYPE_FLAGS (result_type) |= TYPE_FLAG_UNSIGNED; | |
794 | ||
795 | return (result_type); | |
796 | } | |
797 | ||
798 | /* Construct and return a type of the form: | |
799 | struct NAME { ELT_TYPE ELT_NAME[N]; } | |
800 | We use these types for SIMD registers. For example, the type of | |
801 | the SSE registers on the late x86-family processors is: | |
802 | struct __builtin_v4sf { float f[4]; } | |
803 | built by the function call: | |
804 | init_simd_type ("__builtin_v4sf", builtin_type_float, "f", 4) | |
805 | The type returned is a permanent type, allocated using malloc; it | |
806 | doesn't live in any objfile's obstack. */ | |
807 | static struct type * | |
808 | init_simd_type (char *name, | |
809 | struct type *elt_type, | |
810 | char *elt_name, | |
811 | int n) | |
812 | { | |
813 | struct type *simd_type; | |
814 | struct type *array_type; | |
815 | ||
816 | simd_type = init_composite_type (name, TYPE_CODE_STRUCT); | |
817 | array_type = create_array_type (0, elt_type, | |
818 | create_range_type (0, builtin_type_int, | |
819 | 0, n-1)); | |
820 | append_composite_type_field (simd_type, elt_name, array_type); | |
821 | return simd_type; | |
822 | } | |
823 | ||
824 | static struct type * | |
825 | init_vector_type (struct type *elt_type, int n) | |
826 | { | |
827 | struct type *array_type; | |
828 | ||
829 | array_type = create_array_type (0, elt_type, | |
830 | create_range_type (0, builtin_type_int, | |
831 | 0, n-1)); | |
832 | TYPE_FLAGS (array_type) |= TYPE_FLAG_VECTOR; | |
833 | return array_type; | |
834 | } | |
835 | ||
836 | static struct type * | |
837 | build_builtin_type_vec128 (void) | |
838 | { | |
839 | /* Construct a type for the 128 bit registers. The type we're | |
840 | building is this: */ | |
841 | #if 0 | |
842 | union __gdb_builtin_type_vec128 | |
843 | { | |
844 | int128_t uint128; | |
845 | float v4_float[4]; | |
846 | int32_t v4_int32[4]; | |
847 | int16_t v8_int16[8]; | |
848 | int8_t v16_int8[16]; | |
849 | }; | |
850 | #endif | |
851 | ||
852 | struct type *t; | |
853 | ||
854 | t = init_composite_type ("__gdb_builtin_type_vec128", TYPE_CODE_UNION); | |
855 | append_composite_type_field (t, "uint128", builtin_type_int128); | |
856 | append_composite_type_field (t, "v4_float", builtin_type_v4_float); | |
857 | append_composite_type_field (t, "v4_int32", builtin_type_v4_int32); | |
858 | append_composite_type_field (t, "v8_int16", builtin_type_v8_int16); | |
859 | append_composite_type_field (t, "v16_int8", builtin_type_v16_int8); | |
860 | ||
861 | return t; | |
862 | } | |
863 | ||
864 | /* Smash TYPE to be a type of members of DOMAIN with type TO_TYPE. | |
865 | A MEMBER is a wierd thing -- it amounts to a typed offset into | |
866 | a struct, e.g. "an int at offset 8". A MEMBER TYPE doesn't | |
867 | include the offset (that's the value of the MEMBER itself), but does | |
868 | include the structure type into which it points (for some reason). | |
869 | ||
870 | When "smashing" the type, we preserve the objfile that the | |
871 | old type pointed to, since we aren't changing where the type is actually | |
872 | allocated. */ | |
873 | ||
874 | void | |
875 | smash_to_member_type (struct type *type, struct type *domain, | |
876 | struct type *to_type) | |
877 | { | |
878 | struct objfile *objfile; | |
879 | ||
880 | objfile = TYPE_OBJFILE (type); | |
881 | ||
882 | memset ((char *) type, 0, sizeof (struct type)); | |
883 | TYPE_OBJFILE (type) = objfile; | |
884 | TYPE_TARGET_TYPE (type) = to_type; | |
885 | TYPE_DOMAIN_TYPE (type) = domain; | |
886 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ | |
887 | TYPE_CODE (type) = TYPE_CODE_MEMBER; | |
888 | } | |
889 | ||
890 | /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE. | |
891 | METHOD just means `function that gets an extra "this" argument'. | |
892 | ||
893 | When "smashing" the type, we preserve the objfile that the | |
894 | old type pointed to, since we aren't changing where the type is actually | |
895 | allocated. */ | |
896 | ||
897 | void | |
898 | smash_to_method_type (struct type *type, struct type *domain, | |
899 | struct type *to_type, struct type **args) | |
900 | { | |
901 | struct objfile *objfile; | |
902 | ||
903 | objfile = TYPE_OBJFILE (type); | |
904 | ||
905 | memset ((char *) type, 0, sizeof (struct type)); | |
906 | TYPE_OBJFILE (type) = objfile; | |
907 | TYPE_TARGET_TYPE (type) = to_type; | |
908 | TYPE_DOMAIN_TYPE (type) = domain; | |
909 | TYPE_ARG_TYPES (type) = args; | |
910 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ | |
911 | TYPE_CODE (type) = TYPE_CODE_METHOD; | |
912 | } | |
913 | ||
914 | /* Return a typename for a struct/union/enum type without "struct ", | |
915 | "union ", or "enum ". If the type has a NULL name, return NULL. */ | |
916 | ||
917 | char * | |
918 | type_name_no_tag (register const struct type *type) | |
919 | { | |
920 | if (TYPE_TAG_NAME (type) != NULL) | |
921 | return TYPE_TAG_NAME (type); | |
922 | ||
923 | /* Is there code which expects this to return the name if there is no | |
924 | tag name? My guess is that this is mainly used for C++ in cases where | |
925 | the two will always be the same. */ | |
926 | return TYPE_NAME (type); | |
927 | } | |
928 | ||
929 | /* Lookup a primitive type named NAME. | |
930 | Return zero if NAME is not a primitive type. */ | |
931 | ||
932 | struct type * | |
933 | lookup_primitive_typename (char *name) | |
934 | { | |
935 | struct type **const *p; | |
936 | ||
937 | for (p = current_language->la_builtin_type_vector; *p != NULL; p++) | |
938 | { | |
939 | if (STREQ ((**p)->name, name)) | |
940 | { | |
941 | return (**p); | |
942 | } | |
943 | } | |
944 | return (NULL); | |
945 | } | |
946 | ||
947 | /* Lookup a typedef or primitive type named NAME, | |
948 | visible in lexical block BLOCK. | |
949 | If NOERR is nonzero, return zero if NAME is not suitably defined. */ | |
950 | ||
951 | struct type * | |
952 | lookup_typename (char *name, struct block *block, int noerr) | |
953 | { | |
954 | register struct symbol *sym; | |
955 | register struct type *tmp; | |
956 | ||
957 | sym = lookup_symbol (name, block, VAR_NAMESPACE, 0, (struct symtab **) NULL); | |
958 | if (sym == NULL || SYMBOL_CLASS (sym) != LOC_TYPEDEF) | |
959 | { | |
960 | tmp = lookup_primitive_typename (name); | |
961 | if (tmp) | |
962 | { | |
963 | return (tmp); | |
964 | } | |
965 | else if (!tmp && noerr) | |
966 | { | |
967 | return (NULL); | |
968 | } | |
969 | else | |
970 | { | |
971 | error ("No type named %s.", name); | |
972 | } | |
973 | } | |
974 | return (SYMBOL_TYPE (sym)); | |
975 | } | |
976 | ||
977 | struct type * | |
978 | lookup_unsigned_typename (char *name) | |
979 | { | |
980 | char *uns = alloca (strlen (name) + 10); | |
981 | ||
982 | strcpy (uns, "unsigned "); | |
983 | strcpy (uns + 9, name); | |
984 | return (lookup_typename (uns, (struct block *) NULL, 0)); | |
985 | } | |
986 | ||
987 | struct type * | |
988 | lookup_signed_typename (char *name) | |
989 | { | |
990 | struct type *t; | |
991 | char *uns = alloca (strlen (name) + 8); | |
992 | ||
993 | strcpy (uns, "signed "); | |
994 | strcpy (uns + 7, name); | |
995 | t = lookup_typename (uns, (struct block *) NULL, 1); | |
996 | /* If we don't find "signed FOO" just try again with plain "FOO". */ | |
997 | if (t != NULL) | |
998 | return t; | |
999 | return lookup_typename (name, (struct block *) NULL, 0); | |
1000 | } | |
1001 | ||
1002 | /* Lookup a structure type named "struct NAME", | |
1003 | visible in lexical block BLOCK. */ | |
1004 | ||
1005 | struct type * | |
1006 | lookup_struct (char *name, struct block *block) | |
1007 | { | |
1008 | register struct symbol *sym; | |
1009 | ||
1010 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, | |
1011 | (struct symtab **) NULL); | |
1012 | ||
1013 | if (sym == NULL) | |
1014 | { | |
1015 | error ("No struct type named %s.", name); | |
1016 | } | |
1017 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1018 | { | |
1019 | error ("This context has class, union or enum %s, not a struct.", name); | |
1020 | } | |
1021 | return (SYMBOL_TYPE (sym)); | |
1022 | } | |
1023 | ||
1024 | /* Lookup a union type named "union NAME", | |
1025 | visible in lexical block BLOCK. */ | |
1026 | ||
1027 | struct type * | |
1028 | lookup_union (char *name, struct block *block) | |
1029 | { | |
1030 | register struct symbol *sym; | |
1031 | struct type *t; | |
1032 | ||
1033 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, | |
1034 | (struct symtab **) NULL); | |
1035 | ||
1036 | if (sym == NULL) | |
1037 | error ("No union type named %s.", name); | |
1038 | ||
1039 | t = SYMBOL_TYPE (sym); | |
1040 | ||
1041 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
1042 | return (t); | |
1043 | ||
1044 | /* C++ unions may come out with TYPE_CODE_CLASS, but we look at | |
1045 | * a further "declared_type" field to discover it is really a union. | |
1046 | */ | |
1047 | if (HAVE_CPLUS_STRUCT (t)) | |
1048 | if (TYPE_DECLARED_TYPE (t) == DECLARED_TYPE_UNION) | |
1049 | return (t); | |
1050 | ||
1051 | /* If we get here, it's not a union */ | |
1052 | error ("This context has class, struct or enum %s, not a union.", name); | |
1053 | } | |
1054 | ||
1055 | ||
1056 | /* Lookup an enum type named "enum NAME", | |
1057 | visible in lexical block BLOCK. */ | |
1058 | ||
1059 | struct type * | |
1060 | lookup_enum (char *name, struct block *block) | |
1061 | { | |
1062 | register struct symbol *sym; | |
1063 | ||
1064 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, | |
1065 | (struct symtab **) NULL); | |
1066 | if (sym == NULL) | |
1067 | { | |
1068 | error ("No enum type named %s.", name); | |
1069 | } | |
1070 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
1071 | { | |
1072 | error ("This context has class, struct or union %s, not an enum.", name); | |
1073 | } | |
1074 | return (SYMBOL_TYPE (sym)); | |
1075 | } | |
1076 | ||
1077 | /* Lookup a template type named "template NAME<TYPE>", | |
1078 | visible in lexical block BLOCK. */ | |
1079 | ||
1080 | struct type * | |
1081 | lookup_template_type (char *name, struct type *type, struct block *block) | |
1082 | { | |
1083 | struct symbol *sym; | |
1084 | char *nam = (char *) alloca (strlen (name) + strlen (type->name) + 4); | |
1085 | strcpy (nam, name); | |
1086 | strcat (nam, "<"); | |
1087 | strcat (nam, type->name); | |
1088 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ | |
1089 | ||
1090 | sym = lookup_symbol (nam, block, VAR_NAMESPACE, 0, (struct symtab **) NULL); | |
1091 | ||
1092 | if (sym == NULL) | |
1093 | { | |
1094 | error ("No template type named %s.", name); | |
1095 | } | |
1096 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1097 | { | |
1098 | error ("This context has class, union or enum %s, not a struct.", name); | |
1099 | } | |
1100 | return (SYMBOL_TYPE (sym)); | |
1101 | } | |
1102 | ||
1103 | /* Given a type TYPE, lookup the type of the component of type named NAME. | |
1104 | ||
1105 | TYPE can be either a struct or union, or a pointer or reference to a struct or | |
1106 | union. If it is a pointer or reference, its target type is automatically used. | |
1107 | Thus '.' and '->' are interchangable, as specified for the definitions of the | |
1108 | expression element types STRUCTOP_STRUCT and STRUCTOP_PTR. | |
1109 | ||
1110 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
1111 | If NAME is the name of a baseclass type, return that type. */ | |
1112 | ||
1113 | struct type * | |
1114 | lookup_struct_elt_type (struct type *type, char *name, int noerr) | |
1115 | { | |
1116 | int i; | |
1117 | ||
1118 | for (;;) | |
1119 | { | |
1120 | CHECK_TYPEDEF (type); | |
1121 | if (TYPE_CODE (type) != TYPE_CODE_PTR | |
1122 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1123 | break; | |
1124 | type = TYPE_TARGET_TYPE (type); | |
1125 | } | |
1126 | ||
1127 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT && | |
1128 | TYPE_CODE (type) != TYPE_CODE_UNION) | |
1129 | { | |
1130 | target_terminal_ours (); | |
1131 | gdb_flush (gdb_stdout); | |
1132 | fprintf_unfiltered (gdb_stderr, "Type "); | |
1133 | type_print (type, "", gdb_stderr, -1); | |
1134 | error (" is not a structure or union type."); | |
1135 | } | |
1136 | ||
1137 | #if 0 | |
1138 | /* FIXME: This change put in by Michael seems incorrect for the case where | |
1139 | the structure tag name is the same as the member name. I.E. when doing | |
1140 | "ptype bell->bar" for "struct foo { int bar; int foo; } bell;" | |
1141 | Disabled by fnf. */ | |
1142 | { | |
1143 | char *typename; | |
1144 | ||
1145 | typename = type_name_no_tag (type); | |
1146 | if (typename != NULL && STREQ (typename, name)) | |
1147 | return type; | |
1148 | } | |
1149 | #endif | |
1150 | ||
1151 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1152 | { | |
1153 | char *t_field_name = TYPE_FIELD_NAME (type, i); | |
1154 | ||
1155 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) | |
1156 | { | |
1157 | return TYPE_FIELD_TYPE (type, i); | |
1158 | } | |
1159 | } | |
1160 | ||
1161 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1162 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1163 | { | |
1164 | struct type *t; | |
1165 | ||
1166 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, noerr); | |
1167 | if (t != NULL) | |
1168 | { | |
1169 | return t; | |
1170 | } | |
1171 | } | |
1172 | ||
1173 | if (noerr) | |
1174 | { | |
1175 | return NULL; | |
1176 | } | |
1177 | ||
1178 | target_terminal_ours (); | |
1179 | gdb_flush (gdb_stdout); | |
1180 | fprintf_unfiltered (gdb_stderr, "Type "); | |
1181 | type_print (type, "", gdb_stderr, -1); | |
1182 | fprintf_unfiltered (gdb_stderr, " has no component named "); | |
1183 | fputs_filtered (name, gdb_stderr); | |
1184 | error ("."); | |
1185 | return (struct type *) -1; /* For lint */ | |
1186 | } | |
1187 | ||
1188 | /* If possible, make the vptr_fieldno and vptr_basetype fields of TYPE | |
1189 | valid. Callers should be aware that in some cases (for example, | |
1190 | the type or one of its baseclasses is a stub type and we are | |
1191 | debugging a .o file), this function will not be able to find the virtual | |
1192 | function table pointer, and vptr_fieldno will remain -1 and vptr_basetype | |
1193 | will remain NULL. */ | |
1194 | ||
1195 | void | |
1196 | fill_in_vptr_fieldno (struct type *type) | |
1197 | { | |
1198 | CHECK_TYPEDEF (type); | |
1199 | ||
1200 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1201 | { | |
1202 | int i; | |
1203 | ||
1204 | /* We must start at zero in case the first (and only) baseclass is | |
1205 | virtual (and hence we cannot share the table pointer). */ | |
1206 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) | |
1207 | { | |
1208 | fill_in_vptr_fieldno (TYPE_BASECLASS (type, i)); | |
1209 | if (TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type, i)) >= 0) | |
1210 | { | |
1211 | TYPE_VPTR_FIELDNO (type) | |
1212 | = TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type, i)); | |
1213 | TYPE_VPTR_BASETYPE (type) | |
1214 | = TYPE_VPTR_BASETYPE (TYPE_BASECLASS (type, i)); | |
1215 | break; | |
1216 | } | |
1217 | } | |
1218 | } | |
1219 | } | |
1220 | ||
1221 | /* Find the method and field indices for the destructor in class type T. | |
1222 | Return 1 if the destructor was found, otherwise, return 0. */ | |
1223 | ||
1224 | int | |
1225 | get_destructor_fn_field (struct type *t, int *method_indexp, int *field_indexp) | |
1226 | { | |
1227 | int i; | |
1228 | ||
1229 | for (i = 0; i < TYPE_NFN_FIELDS (t); i++) | |
1230 | { | |
1231 | int j; | |
1232 | struct fn_field *f = TYPE_FN_FIELDLIST1 (t, i); | |
1233 | ||
1234 | for (j = 0; j < TYPE_FN_FIELDLIST_LENGTH (t, i); j++) | |
1235 | { | |
1236 | if (is_destructor_name (TYPE_FN_FIELD_PHYSNAME (f, j)) != 0) | |
1237 | { | |
1238 | *method_indexp = i; | |
1239 | *field_indexp = j; | |
1240 | return 1; | |
1241 | } | |
1242 | } | |
1243 | } | |
1244 | return 0; | |
1245 | } | |
1246 | ||
1247 | /* Added by Bryan Boreham, Kewill, Sun Sep 17 18:07:17 1989. | |
1248 | ||
1249 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
1250 | we can find a full definition in some other file. If so, copy this | |
1251 | definition, so we can use it in future. There used to be a comment (but | |
1252 | not any code) that if we don't find a full definition, we'd set a flag | |
1253 | so we don't spend time in the future checking the same type. That would | |
1254 | be a mistake, though--we might load in more symbols which contain a | |
1255 | full definition for the type. | |
1256 | ||
1257 | This used to be coded as a macro, but I don't think it is called | |
1258 | often enough to merit such treatment. */ | |
1259 | ||
1260 | struct complaint stub_noname_complaint = | |
1261 | {"stub type has NULL name", 0, 0}; | |
1262 | ||
1263 | struct type * | |
1264 | check_typedef (struct type *type) | |
1265 | { | |
1266 | struct type *orig_type = type; | |
1267 | int is_const, is_volatile; | |
1268 | ||
1269 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) | |
1270 | { | |
1271 | if (!TYPE_TARGET_TYPE (type)) | |
1272 | { | |
1273 | char *name; | |
1274 | struct symbol *sym; | |
1275 | ||
1276 | /* It is dangerous to call lookup_symbol if we are currently | |
1277 | reading a symtab. Infinite recursion is one danger. */ | |
1278 | if (currently_reading_symtab) | |
1279 | return type; | |
1280 | ||
1281 | name = type_name_no_tag (type); | |
1282 | /* FIXME: shouldn't we separately check the TYPE_NAME and the | |
1283 | TYPE_TAG_NAME, and look in STRUCT_NAMESPACE and/or VAR_NAMESPACE | |
1284 | as appropriate? (this code was written before TYPE_NAME and | |
1285 | TYPE_TAG_NAME were separate). */ | |
1286 | if (name == NULL) | |
1287 | { | |
1288 | complain (&stub_noname_complaint); | |
1289 | return type; | |
1290 | } | |
1291 | sym = lookup_symbol (name, 0, STRUCT_NAMESPACE, 0, | |
1292 | (struct symtab **) NULL); | |
1293 | if (sym) | |
1294 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
1295 | else | |
1296 | TYPE_TARGET_TYPE (type) = alloc_type (NULL); /* TYPE_CODE_UNDEF */ | |
1297 | } | |
1298 | type = TYPE_TARGET_TYPE (type); | |
1299 | } | |
1300 | ||
1301 | is_const = TYPE_CONST (type); | |
1302 | is_volatile = TYPE_VOLATILE (type); | |
1303 | ||
1304 | /* If this is a struct/class/union with no fields, then check whether a | |
1305 | full definition exists somewhere else. This is for systems where a | |
1306 | type definition with no fields is issued for such types, instead of | |
1307 | identifying them as stub types in the first place */ | |
1308 | ||
1309 | if (TYPE_IS_OPAQUE (type) && opaque_type_resolution && !currently_reading_symtab) | |
1310 | { | |
1311 | char *name = type_name_no_tag (type); | |
1312 | struct type *newtype; | |
1313 | if (name == NULL) | |
1314 | { | |
1315 | complain (&stub_noname_complaint); | |
1316 | return type; | |
1317 | } | |
1318 | newtype = lookup_transparent_type (name); | |
1319 | if (newtype) | |
1320 | make_cv_type (is_const, is_volatile, newtype, &type); | |
1321 | } | |
1322 | /* Otherwise, rely on the stub flag being set for opaque/stubbed types */ | |
1323 | else if (TYPE_STUB (type) && !currently_reading_symtab) | |
1324 | { | |
1325 | char *name = type_name_no_tag (type); | |
1326 | /* FIXME: shouldn't we separately check the TYPE_NAME and the | |
1327 | TYPE_TAG_NAME, and look in STRUCT_NAMESPACE and/or VAR_NAMESPACE | |
1328 | as appropriate? (this code was written before TYPE_NAME and | |
1329 | TYPE_TAG_NAME were separate). */ | |
1330 | struct symbol *sym; | |
1331 | if (name == NULL) | |
1332 | { | |
1333 | complain (&stub_noname_complaint); | |
1334 | return type; | |
1335 | } | |
1336 | sym = lookup_symbol (name, 0, STRUCT_NAMESPACE, 0, (struct symtab **) NULL); | |
1337 | if (sym) | |
1338 | make_cv_type (is_const, is_volatile, SYMBOL_TYPE (sym), &type); | |
1339 | } | |
1340 | ||
1341 | if (TYPE_TARGET_STUB (type)) | |
1342 | { | |
1343 | struct type *range_type; | |
1344 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1345 | ||
1346 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) | |
1347 | { | |
1348 | } | |
1349 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY | |
1350 | && TYPE_NFIELDS (type) == 1 | |
1351 | && (TYPE_CODE (range_type = TYPE_FIELD_TYPE (type, 0)) | |
1352 | == TYPE_CODE_RANGE)) | |
1353 | { | |
1354 | /* Now recompute the length of the array type, based on its | |
1355 | number of elements and the target type's length. */ | |
1356 | TYPE_LENGTH (type) = | |
1357 | ((TYPE_FIELD_BITPOS (range_type, 1) | |
1358 | - TYPE_FIELD_BITPOS (range_type, 0) | |
1359 | + 1) | |
1360 | * TYPE_LENGTH (target_type)); | |
1361 | TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB; | |
1362 | } | |
1363 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) | |
1364 | { | |
1365 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
1366 | TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB; | |
1367 | } | |
1368 | } | |
1369 | /* Cache TYPE_LENGTH for future use. */ | |
1370 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); | |
1371 | return type; | |
1372 | } | |
1373 | ||
1374 | /* New code added to support parsing of Cfront stabs strings */ | |
1375 | #define INIT_EXTRA { pextras->len=0; pextras->str[0]='\0'; } | |
1376 | #define ADD_EXTRA(c) { pextras->str[pextras->len++]=c; } | |
1377 | ||
1378 | static void | |
1379 | add_name (struct extra *pextras, char *n) | |
1380 | { | |
1381 | int nlen; | |
1382 | ||
1383 | if ((nlen = (n ? strlen (n) : 0)) == 0) | |
1384 | return; | |
1385 | sprintf (pextras->str + pextras->len, "%d%s", nlen, n); | |
1386 | pextras->len = strlen (pextras->str); | |
1387 | } | |
1388 | ||
1389 | static void | |
1390 | add_mangled_type (struct extra *pextras, struct type *t) | |
1391 | { | |
1392 | enum type_code tcode; | |
1393 | int tlen, tflags; | |
1394 | char *tname; | |
1395 | ||
1396 | tcode = TYPE_CODE (t); | |
1397 | tlen = TYPE_LENGTH (t); | |
1398 | tflags = TYPE_FLAGS (t); | |
1399 | tname = TYPE_NAME (t); | |
1400 | /* args of "..." seem to get mangled as "e" */ | |
1401 | ||
1402 | switch (tcode) | |
1403 | { | |
1404 | case TYPE_CODE_INT: | |
1405 | if (tflags == 1) | |
1406 | ADD_EXTRA ('U'); | |
1407 | switch (tlen) | |
1408 | { | |
1409 | case 1: | |
1410 | ADD_EXTRA ('c'); | |
1411 | break; | |
1412 | case 2: | |
1413 | ADD_EXTRA ('s'); | |
1414 | break; | |
1415 | case 4: | |
1416 | { | |
1417 | char *pname; | |
1418 | if ((pname = strrchr (tname, 'l'), pname) && !strcmp (pname, "long")) | |
1419 | { | |
1420 | ADD_EXTRA ('l'); | |
1421 | } | |
1422 | else | |
1423 | { | |
1424 | ADD_EXTRA ('i'); | |
1425 | } | |
1426 | } | |
1427 | break; | |
1428 | default: | |
1429 | { | |
1430 | ||
1431 | static struct complaint msg = | |
1432 | {"Bad int type code length x%x\n", 0, 0}; | |
1433 | ||
1434 | complain (&msg, tlen); | |
1435 | ||
1436 | } | |
1437 | } | |
1438 | break; | |
1439 | case TYPE_CODE_FLT: | |
1440 | switch (tlen) | |
1441 | { | |
1442 | case 4: | |
1443 | ADD_EXTRA ('f'); | |
1444 | break; | |
1445 | case 8: | |
1446 | ADD_EXTRA ('d'); | |
1447 | break; | |
1448 | case 16: | |
1449 | ADD_EXTRA ('r'); | |
1450 | break; | |
1451 | default: | |
1452 | { | |
1453 | static struct complaint msg = | |
1454 | {"Bad float type code length x%x\n", 0, 0}; | |
1455 | complain (&msg, tlen); | |
1456 | } | |
1457 | } | |
1458 | break; | |
1459 | case TYPE_CODE_REF: | |
1460 | ADD_EXTRA ('R'); | |
1461 | /* followed by what it's a ref to */ | |
1462 | break; | |
1463 | case TYPE_CODE_PTR: | |
1464 | ADD_EXTRA ('P'); | |
1465 | /* followed by what it's a ptr to */ | |
1466 | break; | |
1467 | case TYPE_CODE_TYPEDEF: | |
1468 | { | |
1469 | static struct complaint msg = | |
1470 | {"Typedefs in overloaded functions not yet supported\n", 0, 0}; | |
1471 | complain (&msg); | |
1472 | } | |
1473 | /* followed by type bytes & name */ | |
1474 | break; | |
1475 | case TYPE_CODE_FUNC: | |
1476 | ADD_EXTRA ('F'); | |
1477 | /* followed by func's arg '_' & ret types */ | |
1478 | break; | |
1479 | case TYPE_CODE_VOID: | |
1480 | ADD_EXTRA ('v'); | |
1481 | break; | |
1482 | case TYPE_CODE_METHOD: | |
1483 | ADD_EXTRA ('M'); | |
1484 | /* followed by name of class and func's arg '_' & ret types */ | |
1485 | add_name (pextras, tname); | |
1486 | ADD_EXTRA ('F'); /* then mangle function */ | |
1487 | break; | |
1488 | case TYPE_CODE_STRUCT: /* C struct */ | |
1489 | case TYPE_CODE_UNION: /* C union */ | |
1490 | case TYPE_CODE_ENUM: /* Enumeration type */ | |
1491 | /* followed by name of type */ | |
1492 | add_name (pextras, tname); | |
1493 | break; | |
1494 | ||
1495 | /* errors possible types/not supported */ | |
1496 | case TYPE_CODE_CHAR: | |
1497 | case TYPE_CODE_ARRAY: /* Array type */ | |
1498 | case TYPE_CODE_MEMBER: /* Member type */ | |
1499 | case TYPE_CODE_BOOL: | |
1500 | case TYPE_CODE_COMPLEX: /* Complex float */ | |
1501 | case TYPE_CODE_UNDEF: | |
1502 | case TYPE_CODE_SET: /* Pascal sets */ | |
1503 | case TYPE_CODE_RANGE: | |
1504 | case TYPE_CODE_STRING: | |
1505 | case TYPE_CODE_BITSTRING: | |
1506 | case TYPE_CODE_ERROR: | |
1507 | default: | |
1508 | { | |
1509 | static struct complaint msg = | |
1510 | {"Unknown type code x%x\n", 0, 0}; | |
1511 | complain (&msg, tcode); | |
1512 | } | |
1513 | } | |
1514 | if (t->target_type) | |
1515 | add_mangled_type (pextras, t->target_type); | |
1516 | } | |
1517 | ||
1518 | #if 0 | |
1519 | void | |
1520 | cfront_mangle_name (struct type *type, int i, int j) | |
1521 | { | |
1522 | struct fn_field *f; | |
1523 | char *mangled_name = gdb_mangle_name (type, i, j); | |
1524 | ||
1525 | f = TYPE_FN_FIELDLIST1 (type, i); /* moved from below */ | |
1526 | ||
1527 | /* kludge to support cfront methods - gdb expects to find "F" for | |
1528 | ARM_mangled names, so when we mangle, we have to add it here */ | |
1529 | if (ARM_DEMANGLING) | |
1530 | { | |
1531 | int k; | |
1532 | char *arm_mangled_name; | |
1533 | struct fn_field *method = &f[j]; | |
1534 | char *field_name = TYPE_FN_FIELDLIST_NAME (type, i); | |
1535 | char *physname = TYPE_FN_FIELD_PHYSNAME (f, j); | |
1536 | char *newname = type_name_no_tag (type); | |
1537 | ||
1538 | struct type *ftype = TYPE_FN_FIELD_TYPE (f, j); | |
1539 | int nargs = TYPE_NFIELDS (ftype); /* number of args */ | |
1540 | struct extra extras, *pextras = &extras; | |
1541 | INIT_EXTRA | |
1542 | ||
1543 | if (TYPE_FN_FIELD_STATIC_P (f, j)) /* j for sublist within this list */ | |
1544 | ADD_EXTRA ('S') | |
1545 | ADD_EXTRA ('F') | |
1546 | /* add args here! */ | |
1547 | if (nargs <= 1) /* no args besides this */ | |
1548 | ADD_EXTRA ('v') | |
1549 | else | |
1550 | { | |
1551 | for (k = 1; k < nargs; k++) | |
1552 | { | |
1553 | struct type *t; | |
1554 | t = TYPE_FIELD_TYPE (ftype, k); | |
1555 | add_mangled_type (pextras, t); | |
1556 | } | |
1557 | } | |
1558 | ADD_EXTRA ('\0') | |
1559 | printf ("add_mangled_type: %s\n", extras.str); /* FIXME */ | |
1560 | xasprintf (&arm_mangled_name, "%s%s", mangled_name, extras.str); | |
1561 | xfree (mangled_name); | |
1562 | mangled_name = arm_mangled_name; | |
1563 | } | |
1564 | } | |
1565 | #endif /* 0 */ | |
1566 | ||
1567 | #undef ADD_EXTRA | |
1568 | /* End of new code added to support parsing of Cfront stabs strings */ | |
1569 | ||
1570 | /* Parse a type expression in the string [P..P+LENGTH). If an error occurs, | |
1571 | silently return builtin_type_void. */ | |
1572 | ||
1573 | struct type * | |
1574 | safe_parse_type (char *p, int length) | |
1575 | { | |
1576 | struct ui_file *saved_gdb_stderr; | |
1577 | struct type *type; | |
1578 | ||
1579 | /* Suppress error messages. */ | |
1580 | saved_gdb_stderr = gdb_stderr; | |
1581 | gdb_stderr = ui_file_new (); | |
1582 | ||
1583 | /* Call parse_and_eval_type() without fear of longjmp()s. */ | |
1584 | if (!gdb_parse_and_eval_type (p, length, &type)) | |
1585 | type = builtin_type_void; | |
1586 | ||
1587 | /* Stop suppressing error messages. */ | |
1588 | ui_file_delete (gdb_stderr); | |
1589 | gdb_stderr = saved_gdb_stderr; | |
1590 | ||
1591 | return type; | |
1592 | } | |
1593 | ||
1594 | /* Ugly hack to convert method stubs into method types. | |
1595 | ||
1596 | He ain't kiddin'. This demangles the name of the method into a string | |
1597 | including argument types, parses out each argument type, generates | |
1598 | a string casting a zero to that type, evaluates the string, and stuffs | |
1599 | the resulting type into an argtype vector!!! Then it knows the type | |
1600 | of the whole function (including argument types for overloading), | |
1601 | which info used to be in the stab's but was removed to hack back | |
1602 | the space required for them. */ | |
1603 | ||
1604 | void | |
1605 | check_stub_method (struct type *type, int method_id, int signature_id) | |
1606 | { | |
1607 | struct fn_field *f; | |
1608 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
1609 | char *demangled_name = cplus_demangle (mangled_name, | |
1610 | DMGL_PARAMS | DMGL_ANSI); | |
1611 | char *argtypetext, *p; | |
1612 | int depth = 0, argcount = 1; | |
1613 | struct type **argtypes; | |
1614 | struct type *mtype; | |
1615 | ||
1616 | /* Make sure we got back a function string that we can use. */ | |
1617 | if (demangled_name) | |
1618 | p = strchr (demangled_name, '('); | |
1619 | else | |
1620 | p = NULL; | |
1621 | ||
1622 | if (demangled_name == NULL || p == NULL) | |
1623 | error ("Internal: Cannot demangle mangled name `%s'.", mangled_name); | |
1624 | ||
1625 | /* Now, read in the parameters that define this type. */ | |
1626 | p += 1; | |
1627 | argtypetext = p; | |
1628 | while (*p) | |
1629 | { | |
1630 | if (*p == '(' || *p == '<') | |
1631 | { | |
1632 | depth += 1; | |
1633 | } | |
1634 | else if (*p == ')' || *p == '>') | |
1635 | { | |
1636 | depth -= 1; | |
1637 | } | |
1638 | else if (*p == ',' && depth == 0) | |
1639 | { | |
1640 | argcount += 1; | |
1641 | } | |
1642 | ||
1643 | p += 1; | |
1644 | } | |
1645 | ||
1646 | /* We need two more slots: one for the THIS pointer, and one for the | |
1647 | NULL [...] or void [end of arglist]. */ | |
1648 | ||
1649 | argtypes = (struct type **) | |
1650 | TYPE_ALLOC (type, (argcount + 2) * sizeof (struct type *)); | |
1651 | p = argtypetext; | |
1652 | ||
1653 | /* Add THIS pointer for non-static methods. */ | |
1654 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
1655 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
1656 | argcount = 0; | |
1657 | else | |
1658 | { | |
1659 | argtypes[0] = lookup_pointer_type (type); | |
1660 | argcount = 1; | |
1661 | } | |
1662 | ||
1663 | if (*p != ')') /* () means no args, skip while */ | |
1664 | { | |
1665 | depth = 0; | |
1666 | while (*p) | |
1667 | { | |
1668 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
1669 | { | |
1670 | /* Avoid parsing of ellipsis, they will be handled below. */ | |
1671 | if (strncmp (argtypetext, "...", p - argtypetext) != 0) | |
1672 | { | |
1673 | argtypes[argcount] = | |
1674 | safe_parse_type (argtypetext, p - argtypetext); | |
1675 | argcount += 1; | |
1676 | } | |
1677 | argtypetext = p + 1; | |
1678 | } | |
1679 | ||
1680 | if (*p == '(' || *p == '<') | |
1681 | { | |
1682 | depth += 1; | |
1683 | } | |
1684 | else if (*p == ')' || *p == '>') | |
1685 | { | |
1686 | depth -= 1; | |
1687 | } | |
1688 | ||
1689 | p += 1; | |
1690 | } | |
1691 | } | |
1692 | ||
1693 | if (p[-2] != '.') /* Not '...' */ | |
1694 | { | |
1695 | argtypes[argcount] = builtin_type_void; /* List terminator */ | |
1696 | } | |
1697 | else | |
1698 | { | |
1699 | argtypes[argcount] = NULL; /* Ellist terminator */ | |
1700 | } | |
1701 | ||
1702 | xfree (demangled_name); | |
1703 | ||
1704 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; | |
1705 | ||
1706 | /* Now update the old "stub" type into a real type. */ | |
1707 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
1708 | TYPE_DOMAIN_TYPE (mtype) = type; | |
1709 | TYPE_ARG_TYPES (mtype) = argtypes; | |
1710 | TYPE_FLAGS (mtype) &= ~TYPE_FLAG_STUB; | |
1711 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; | |
1712 | } | |
1713 | ||
1714 | const struct cplus_struct_type cplus_struct_default; | |
1715 | ||
1716 | void | |
1717 | allocate_cplus_struct_type (struct type *type) | |
1718 | { | |
1719 | if (!HAVE_CPLUS_STRUCT (type)) | |
1720 | { | |
1721 | TYPE_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
1722 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
1723 | *(TYPE_CPLUS_SPECIFIC (type)) = cplus_struct_default; | |
1724 | } | |
1725 | } | |
1726 | ||
1727 | /* Helper function to initialize the standard scalar types. | |
1728 | ||
1729 | If NAME is non-NULL and OBJFILE is non-NULL, then we make a copy | |
1730 | of the string pointed to by name in the type_obstack for that objfile, | |
1731 | and initialize the type name to that copy. There are places (mipsread.c | |
1732 | in particular, where init_type is called with a NULL value for NAME). */ | |
1733 | ||
1734 | struct type * | |
1735 | init_type (enum type_code code, int length, int flags, char *name, | |
1736 | struct objfile *objfile) | |
1737 | { | |
1738 | register struct type *type; | |
1739 | ||
1740 | type = alloc_type (objfile); | |
1741 | TYPE_CODE (type) = code; | |
1742 | TYPE_LENGTH (type) = length; | |
1743 | TYPE_FLAGS (type) |= flags; | |
1744 | if ((name != NULL) && (objfile != NULL)) | |
1745 | { | |
1746 | TYPE_NAME (type) = | |
1747 | obsavestring (name, strlen (name), &objfile->type_obstack); | |
1748 | } | |
1749 | else | |
1750 | { | |
1751 | TYPE_NAME (type) = name; | |
1752 | } | |
1753 | ||
1754 | /* C++ fancies. */ | |
1755 | ||
1756 | if (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION) | |
1757 | { | |
1758 | INIT_CPLUS_SPECIFIC (type); | |
1759 | } | |
1760 | return (type); | |
1761 | } | |
1762 | ||
1763 | /* Helper function. Create an empty composite type. */ | |
1764 | ||
1765 | struct type * | |
1766 | init_composite_type (char *name, enum type_code code) | |
1767 | { | |
1768 | struct type *t; | |
1769 | gdb_assert (code == TYPE_CODE_STRUCT | |
1770 | || code == TYPE_CODE_UNION); | |
1771 | t = init_type (code, 0, 0, NULL, NULL); | |
1772 | TYPE_TAG_NAME (t) = name; | |
1773 | return t; | |
1774 | } | |
1775 | ||
1776 | /* Helper function. Append a field to a composite type. */ | |
1777 | ||
1778 | void | |
1779 | append_composite_type_field (struct type *t, char *name, struct type *field) | |
1780 | { | |
1781 | struct field *f; | |
1782 | TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; | |
1783 | TYPE_FIELDS (t) = xrealloc (TYPE_FIELDS (t), | |
1784 | sizeof (struct field) * TYPE_NFIELDS (t)); | |
1785 | f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); | |
1786 | memset (f, 0, sizeof f[0]); | |
1787 | FIELD_TYPE (f[0]) = field; | |
1788 | FIELD_NAME (f[0]) = name; | |
1789 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
1790 | { | |
1791 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) | |
1792 | TYPE_LENGTH (t) = TYPE_LENGTH (field); | |
1793 | } | |
1794 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
1795 | { | |
1796 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
1797 | if (TYPE_NFIELDS (t) > 1) | |
1798 | { | |
1799 | FIELD_BITPOS (f[0]) = (FIELD_BITPOS (f[-1]) | |
1800 | + TYPE_LENGTH (field) * TARGET_CHAR_BIT); | |
1801 | } | |
1802 | } | |
1803 | } | |
1804 | ||
1805 | /* Look up a fundamental type for the specified objfile. | |
1806 | May need to construct such a type if this is the first use. | |
1807 | ||
1808 | Some object file formats (ELF, COFF, etc) do not define fundamental | |
1809 | types such as "int" or "double". Others (stabs for example), do | |
1810 | define fundamental types. | |
1811 | ||
1812 | For the formats which don't provide fundamental types, gdb can create | |
1813 | such types, using defaults reasonable for the current language and | |
1814 | the current target machine. | |
1815 | ||
1816 | NOTE: This routine is obsolescent. Each debugging format reader | |
1817 | should manage it's own fundamental types, either creating them from | |
1818 | suitable defaults or reading them from the debugging information, | |
1819 | whichever is appropriate. The DWARF reader has already been | |
1820 | fixed to do this. Once the other readers are fixed, this routine | |
1821 | will go away. Also note that fundamental types should be managed | |
1822 | on a compilation unit basis in a multi-language environment, not | |
1823 | on a linkage unit basis as is done here. */ | |
1824 | ||
1825 | ||
1826 | struct type * | |
1827 | lookup_fundamental_type (struct objfile *objfile, int typeid) | |
1828 | { | |
1829 | register struct type **typep; | |
1830 | register int nbytes; | |
1831 | ||
1832 | if (typeid < 0 || typeid >= FT_NUM_MEMBERS) | |
1833 | { | |
1834 | error ("internal error - invalid fundamental type id %d", typeid); | |
1835 | } | |
1836 | ||
1837 | /* If this is the first time we need a fundamental type for this objfile | |
1838 | then we need to initialize the vector of type pointers. */ | |
1839 | ||
1840 | if (objfile->fundamental_types == NULL) | |
1841 | { | |
1842 | nbytes = FT_NUM_MEMBERS * sizeof (struct type *); | |
1843 | objfile->fundamental_types = (struct type **) | |
1844 | obstack_alloc (&objfile->type_obstack, nbytes); | |
1845 | memset ((char *) objfile->fundamental_types, 0, nbytes); | |
1846 | OBJSTAT (objfile, n_types += FT_NUM_MEMBERS); | |
1847 | } | |
1848 | ||
1849 | /* Look for this particular type in the fundamental type vector. If one is | |
1850 | not found, create and install one appropriate for the current language. */ | |
1851 | ||
1852 | typep = objfile->fundamental_types + typeid; | |
1853 | if (*typep == NULL) | |
1854 | { | |
1855 | *typep = create_fundamental_type (objfile, typeid); | |
1856 | } | |
1857 | ||
1858 | return (*typep); | |
1859 | } | |
1860 | ||
1861 | int | |
1862 | can_dereference (struct type *t) | |
1863 | { | |
1864 | /* FIXME: Should we return true for references as well as pointers? */ | |
1865 | CHECK_TYPEDEF (t); | |
1866 | return | |
1867 | (t != NULL | |
1868 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
1869 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
1870 | } | |
1871 | ||
1872 | int | |
1873 | is_integral_type (struct type *t) | |
1874 | { | |
1875 | CHECK_TYPEDEF (t); | |
1876 | return | |
1877 | ((t != NULL) | |
1878 | && ((TYPE_CODE (t) == TYPE_CODE_INT) | |
1879 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
1880 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) | |
1881 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
1882 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
1883 | } | |
1884 | ||
1885 | /* Chill varying string and arrays are represented as follows: | |
1886 | ||
1887 | struct { int __var_length; ELEMENT_TYPE[MAX_SIZE] __var_data}; | |
1888 | ||
1889 | Return true if TYPE is such a Chill varying type. */ | |
1890 | ||
1891 | int | |
1892 | chill_varying_type (struct type *type) | |
1893 | { | |
1894 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT | |
1895 | || TYPE_NFIELDS (type) != 2 | |
1896 | || strcmp (TYPE_FIELD_NAME (type, 0), "__var_length") != 0) | |
1897 | return 0; | |
1898 | return 1; | |
1899 | } | |
1900 | ||
1901 | /* Check whether BASE is an ancestor or base class or DCLASS | |
1902 | Return 1 if so, and 0 if not. | |
1903 | Note: callers may want to check for identity of the types before | |
1904 | calling this function -- identical types are considered to satisfy | |
1905 | the ancestor relationship even if they're identical */ | |
1906 | ||
1907 | int | |
1908 | is_ancestor (struct type *base, struct type *dclass) | |
1909 | { | |
1910 | int i; | |
1911 | ||
1912 | CHECK_TYPEDEF (base); | |
1913 | CHECK_TYPEDEF (dclass); | |
1914 | ||
1915 | if (base == dclass) | |
1916 | return 1; | |
1917 | if (TYPE_NAME (base) && TYPE_NAME (dclass) && | |
1918 | !strcmp (TYPE_NAME (base), TYPE_NAME (dclass))) | |
1919 | return 1; | |
1920 | ||
1921 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1922 | if (is_ancestor (base, TYPE_BASECLASS (dclass, i))) | |
1923 | return 1; | |
1924 | ||
1925 | return 0; | |
1926 | } | |
1927 | ||
1928 | ||
1929 | ||
1930 | /* See whether DCLASS has a virtual table. This routine is aimed at | |
1931 | the HP/Taligent ANSI C++ runtime model, and may not work with other | |
1932 | runtime models. Return 1 => Yes, 0 => No. */ | |
1933 | ||
1934 | int | |
1935 | has_vtable (struct type *dclass) | |
1936 | { | |
1937 | /* In the HP ANSI C++ runtime model, a class has a vtable only if it | |
1938 | has virtual functions or virtual bases. */ | |
1939 | ||
1940 | register int i; | |
1941 | ||
1942 | if (TYPE_CODE (dclass) != TYPE_CODE_CLASS) | |
1943 | return 0; | |
1944 | ||
1945 | /* First check for the presence of virtual bases */ | |
1946 | if (TYPE_FIELD_VIRTUAL_BITS (dclass)) | |
1947 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1948 | if (B_TST (TYPE_FIELD_VIRTUAL_BITS (dclass), i)) | |
1949 | return 1; | |
1950 | ||
1951 | /* Next check for virtual functions */ | |
1952 | if (TYPE_FN_FIELDLISTS (dclass)) | |
1953 | for (i = 0; i < TYPE_NFN_FIELDS (dclass); i++) | |
1954 | if (TYPE_FN_FIELD_VIRTUAL_P (TYPE_FN_FIELDLIST1 (dclass, i), 0)) | |
1955 | return 1; | |
1956 | ||
1957 | /* Recurse on non-virtual bases to see if any of them needs a vtable */ | |
1958 | if (TYPE_FIELD_VIRTUAL_BITS (dclass)) | |
1959 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1960 | if ((!B_TST (TYPE_FIELD_VIRTUAL_BITS (dclass), i)) && | |
1961 | (has_vtable (TYPE_FIELD_TYPE (dclass, i)))) | |
1962 | return 1; | |
1963 | ||
1964 | /* Well, maybe we don't need a virtual table */ | |
1965 | return 0; | |
1966 | } | |
1967 | ||
1968 | /* Return a pointer to the "primary base class" of DCLASS. | |
1969 | ||
1970 | A NULL return indicates that DCLASS has no primary base, or that it | |
1971 | couldn't be found (insufficient information). | |
1972 | ||
1973 | This routine is aimed at the HP/Taligent ANSI C++ runtime model, | |
1974 | and may not work with other runtime models. */ | |
1975 | ||
1976 | struct type * | |
1977 | primary_base_class (struct type *dclass) | |
1978 | { | |
1979 | /* In HP ANSI C++'s runtime model, a "primary base class" of a class | |
1980 | is the first directly inherited, non-virtual base class that | |
1981 | requires a virtual table */ | |
1982 | ||
1983 | register int i; | |
1984 | ||
1985 | if (TYPE_CODE (dclass) != TYPE_CODE_CLASS) | |
1986 | return NULL; | |
1987 | ||
1988 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1989 | if (!TYPE_FIELD_VIRTUAL (dclass, i) && | |
1990 | has_vtable (TYPE_FIELD_TYPE (dclass, i))) | |
1991 | return TYPE_FIELD_TYPE (dclass, i); | |
1992 | ||
1993 | return NULL; | |
1994 | } | |
1995 | ||
1996 | /* Global manipulated by virtual_base_list[_aux]() */ | |
1997 | ||
1998 | static struct vbase *current_vbase_list = NULL; | |
1999 | ||
2000 | /* Return a pointer to a null-terminated list of struct vbase | |
2001 | items. The vbasetype pointer of each item in the list points to the | |
2002 | type information for a virtual base of the argument DCLASS. | |
2003 | ||
2004 | Helper function for virtual_base_list(). | |
2005 | Note: the list goes backward, right-to-left. virtual_base_list() | |
2006 | copies the items out in reverse order. */ | |
2007 | ||
2008 | static void | |
2009 | virtual_base_list_aux (struct type *dclass) | |
2010 | { | |
2011 | struct vbase *tmp_vbase; | |
2012 | register int i; | |
2013 | ||
2014 | if (TYPE_CODE (dclass) != TYPE_CODE_CLASS) | |
2015 | return; | |
2016 | ||
2017 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
2018 | { | |
2019 | /* Recurse on this ancestor, first */ | |
2020 | virtual_base_list_aux (TYPE_FIELD_TYPE (dclass, i)); | |
2021 | ||
2022 | /* If this current base is itself virtual, add it to the list */ | |
2023 | if (BASETYPE_VIA_VIRTUAL (dclass, i)) | |
2024 | { | |
2025 | struct type *basetype = TYPE_FIELD_TYPE (dclass, i); | |
2026 | ||
2027 | /* Check if base already recorded */ | |
2028 | tmp_vbase = current_vbase_list; | |
2029 | while (tmp_vbase) | |
2030 | { | |
2031 | if (tmp_vbase->vbasetype == basetype) | |
2032 | break; /* found it */ | |
2033 | tmp_vbase = tmp_vbase->next; | |
2034 | } | |
2035 | ||
2036 | if (!tmp_vbase) /* normal exit from loop */ | |
2037 | { | |
2038 | /* Allocate new item for this virtual base */ | |
2039 | tmp_vbase = (struct vbase *) xmalloc (sizeof (struct vbase)); | |
2040 | ||
2041 | /* Stick it on at the end of the list */ | |
2042 | tmp_vbase->vbasetype = basetype; | |
2043 | tmp_vbase->next = current_vbase_list; | |
2044 | current_vbase_list = tmp_vbase; | |
2045 | } | |
2046 | } /* if virtual */ | |
2047 | } /* for loop over bases */ | |
2048 | } | |
2049 | ||
2050 | ||
2051 | /* Compute the list of virtual bases in the right order. Virtual | |
2052 | bases are laid out in the object's memory area in order of their | |
2053 | occurrence in a depth-first, left-to-right search through the | |
2054 | ancestors. | |
2055 | ||
2056 | Argument DCLASS is the type whose virtual bases are required. | |
2057 | Return value is the address of a null-terminated array of pointers | |
2058 | to struct type items. | |
2059 | ||
2060 | This routine is aimed at the HP/Taligent ANSI C++ runtime model, | |
2061 | and may not work with other runtime models. | |
2062 | ||
2063 | This routine merely hands off the argument to virtual_base_list_aux() | |
2064 | and then copies the result into an array to save space. */ | |
2065 | ||
2066 | struct type ** | |
2067 | virtual_base_list (struct type *dclass) | |
2068 | { | |
2069 | register struct vbase *tmp_vbase; | |
2070 | register struct vbase *tmp_vbase_2; | |
2071 | register int i; | |
2072 | int count; | |
2073 | struct type **vbase_array; | |
2074 | ||
2075 | current_vbase_list = NULL; | |
2076 | virtual_base_list_aux (dclass); | |
2077 | ||
2078 | for (i = 0, tmp_vbase = current_vbase_list; tmp_vbase != NULL; i++, tmp_vbase = tmp_vbase->next) | |
2079 | /* no body */ ; | |
2080 | ||
2081 | count = i; | |
2082 | ||
2083 | vbase_array = (struct type **) xmalloc ((count + 1) * sizeof (struct type *)); | |
2084 | ||
2085 | for (i = count - 1, tmp_vbase = current_vbase_list; i >= 0; i--, tmp_vbase = tmp_vbase->next) | |
2086 | vbase_array[i] = tmp_vbase->vbasetype; | |
2087 | ||
2088 | /* Get rid of constructed chain */ | |
2089 | tmp_vbase_2 = tmp_vbase = current_vbase_list; | |
2090 | while (tmp_vbase) | |
2091 | { | |
2092 | tmp_vbase = tmp_vbase->next; | |
2093 | xfree (tmp_vbase_2); | |
2094 | tmp_vbase_2 = tmp_vbase; | |
2095 | } | |
2096 | ||
2097 | vbase_array[count] = NULL; | |
2098 | return vbase_array; | |
2099 | } | |
2100 | ||
2101 | /* Return the length of the virtual base list of the type DCLASS. */ | |
2102 | ||
2103 | int | |
2104 | virtual_base_list_length (struct type *dclass) | |
2105 | { | |
2106 | register int i; | |
2107 | register struct vbase *tmp_vbase; | |
2108 | ||
2109 | current_vbase_list = NULL; | |
2110 | virtual_base_list_aux (dclass); | |
2111 | ||
2112 | for (i = 0, tmp_vbase = current_vbase_list; tmp_vbase != NULL; i++, tmp_vbase = tmp_vbase->next) | |
2113 | /* no body */ ; | |
2114 | return i; | |
2115 | } | |
2116 | ||
2117 | /* Return the number of elements of the virtual base list of the type | |
2118 | DCLASS, ignoring those appearing in the primary base (and its | |
2119 | primary base, recursively). */ | |
2120 | ||
2121 | int | |
2122 | virtual_base_list_length_skip_primaries (struct type *dclass) | |
2123 | { | |
2124 | register int i; | |
2125 | register struct vbase *tmp_vbase; | |
2126 | struct type *primary; | |
2127 | ||
2128 | primary = TYPE_RUNTIME_PTR (dclass) ? TYPE_PRIMARY_BASE (dclass) : NULL; | |
2129 | ||
2130 | if (!primary) | |
2131 | return virtual_base_list_length (dclass); | |
2132 | ||
2133 | current_vbase_list = NULL; | |
2134 | virtual_base_list_aux (dclass); | |
2135 | ||
2136 | for (i = 0, tmp_vbase = current_vbase_list; tmp_vbase != NULL; tmp_vbase = tmp_vbase->next) | |
2137 | { | |
2138 | if (virtual_base_index (tmp_vbase->vbasetype, primary) >= 0) | |
2139 | continue; | |
2140 | i++; | |
2141 | } | |
2142 | return i; | |
2143 | } | |
2144 | ||
2145 | ||
2146 | /* Return the index (position) of type BASE, which is a virtual base | |
2147 | class of DCLASS, in the latter's virtual base list. A return of -1 | |
2148 | indicates "not found" or a problem. */ | |
2149 | ||
2150 | int | |
2151 | virtual_base_index (struct type *base, struct type *dclass) | |
2152 | { | |
2153 | register struct type *vbase; | |
2154 | register int i; | |
2155 | ||
2156 | if ((TYPE_CODE (dclass) != TYPE_CODE_CLASS) || | |
2157 | (TYPE_CODE (base) != TYPE_CODE_CLASS)) | |
2158 | return -1; | |
2159 | ||
2160 | i = 0; | |
2161 | vbase = virtual_base_list (dclass)[0]; | |
2162 | while (vbase) | |
2163 | { | |
2164 | if (vbase == base) | |
2165 | break; | |
2166 | vbase = virtual_base_list (dclass)[++i]; | |
2167 | } | |
2168 | ||
2169 | return vbase ? i : -1; | |
2170 | } | |
2171 | ||
2172 | ||
2173 | ||
2174 | /* Return the index (position) of type BASE, which is a virtual base | |
2175 | class of DCLASS, in the latter's virtual base list. Skip over all | |
2176 | bases that may appear in the virtual base list of the primary base | |
2177 | class of DCLASS (recursively). A return of -1 indicates "not | |
2178 | found" or a problem. */ | |
2179 | ||
2180 | int | |
2181 | virtual_base_index_skip_primaries (struct type *base, struct type *dclass) | |
2182 | { | |
2183 | register struct type *vbase; | |
2184 | register int i, j; | |
2185 | struct type *primary; | |
2186 | ||
2187 | if ((TYPE_CODE (dclass) != TYPE_CODE_CLASS) || | |
2188 | (TYPE_CODE (base) != TYPE_CODE_CLASS)) | |
2189 | return -1; | |
2190 | ||
2191 | primary = TYPE_RUNTIME_PTR (dclass) ? TYPE_PRIMARY_BASE (dclass) : NULL; | |
2192 | ||
2193 | j = -1; | |
2194 | i = 0; | |
2195 | vbase = virtual_base_list (dclass)[0]; | |
2196 | while (vbase) | |
2197 | { | |
2198 | if (!primary || (virtual_base_index_skip_primaries (vbase, primary) < 0)) | |
2199 | j++; | |
2200 | if (vbase == base) | |
2201 | break; | |
2202 | vbase = virtual_base_list (dclass)[++i]; | |
2203 | } | |
2204 | ||
2205 | return vbase ? j : -1; | |
2206 | } | |
2207 | ||
2208 | /* Return position of a derived class DCLASS in the list of | |
2209 | * primary bases starting with the remotest ancestor. | |
2210 | * Position returned is 0-based. */ | |
2211 | ||
2212 | int | |
2213 | class_index_in_primary_list (struct type *dclass) | |
2214 | { | |
2215 | struct type *pbc; /* primary base class */ | |
2216 | ||
2217 | /* Simply recurse on primary base */ | |
2218 | pbc = TYPE_PRIMARY_BASE (dclass); | |
2219 | if (pbc) | |
2220 | return 1 + class_index_in_primary_list (pbc); | |
2221 | else | |
2222 | return 0; | |
2223 | } | |
2224 | ||
2225 | /* Return a count of the number of virtual functions a type has. | |
2226 | * This includes all the virtual functions it inherits from its | |
2227 | * base classes too. | |
2228 | */ | |
2229 | ||
2230 | /* pai: FIXME This doesn't do the right thing: count redefined virtual | |
2231 | * functions only once (latest redefinition) | |
2232 | */ | |
2233 | ||
2234 | int | |
2235 | count_virtual_fns (struct type *dclass) | |
2236 | { | |
2237 | int fn, oi; /* function and overloaded instance indices */ | |
2238 | int vfuncs; /* count to return */ | |
2239 | ||
2240 | /* recurse on bases that can share virtual table */ | |
2241 | struct type *pbc = primary_base_class (dclass); | |
2242 | if (pbc) | |
2243 | vfuncs = count_virtual_fns (pbc); | |
2244 | else | |
2245 | vfuncs = 0; | |
2246 | ||
2247 | for (fn = 0; fn < TYPE_NFN_FIELDS (dclass); fn++) | |
2248 | for (oi = 0; oi < TYPE_FN_FIELDLIST_LENGTH (dclass, fn); oi++) | |
2249 | if (TYPE_FN_FIELD_VIRTUAL_P (TYPE_FN_FIELDLIST1 (dclass, fn), oi)) | |
2250 | vfuncs++; | |
2251 | ||
2252 | return vfuncs; | |
2253 | } | |
2254 | \f | |
2255 | ||
2256 | ||
2257 | /* Functions for overload resolution begin here */ | |
2258 | ||
2259 | /* Compare two badness vectors A and B and return the result. | |
2260 | * 0 => A and B are identical | |
2261 | * 1 => A and B are incomparable | |
2262 | * 2 => A is better than B | |
2263 | * 3 => A is worse than B */ | |
2264 | ||
2265 | int | |
2266 | compare_badness (struct badness_vector *a, struct badness_vector *b) | |
2267 | { | |
2268 | int i; | |
2269 | int tmp; | |
2270 | short found_pos = 0; /* any positives in c? */ | |
2271 | short found_neg = 0; /* any negatives in c? */ | |
2272 | ||
2273 | /* differing lengths => incomparable */ | |
2274 | if (a->length != b->length) | |
2275 | return 1; | |
2276 | ||
2277 | /* Subtract b from a */ | |
2278 | for (i = 0; i < a->length; i++) | |
2279 | { | |
2280 | tmp = a->rank[i] - b->rank[i]; | |
2281 | if (tmp > 0) | |
2282 | found_pos = 1; | |
2283 | else if (tmp < 0) | |
2284 | found_neg = 1; | |
2285 | } | |
2286 | ||
2287 | if (found_pos) | |
2288 | { | |
2289 | if (found_neg) | |
2290 | return 1; /* incomparable */ | |
2291 | else | |
2292 | return 3; /* A > B */ | |
2293 | } | |
2294 | else | |
2295 | /* no positives */ | |
2296 | { | |
2297 | if (found_neg) | |
2298 | return 2; /* A < B */ | |
2299 | else | |
2300 | return 0; /* A == B */ | |
2301 | } | |
2302 | } | |
2303 | ||
2304 | /* Rank a function by comparing its parameter types (PARMS, length NPARMS), | |
2305 | * to the types of an argument list (ARGS, length NARGS). | |
2306 | * Return a pointer to a badness vector. This has NARGS + 1 entries. */ | |
2307 | ||
2308 | struct badness_vector * | |
2309 | rank_function (struct type **parms, int nparms, struct type **args, int nargs) | |
2310 | { | |
2311 | int i; | |
2312 | struct badness_vector *bv; | |
2313 | int min_len = nparms < nargs ? nparms : nargs; | |
2314 | ||
2315 | bv = xmalloc (sizeof (struct badness_vector)); | |
2316 | bv->length = nargs + 1; /* add 1 for the length-match rank */ | |
2317 | bv->rank = xmalloc ((nargs + 1) * sizeof (int)); | |
2318 | ||
2319 | /* First compare the lengths of the supplied lists. | |
2320 | * If there is a mismatch, set it to a high value. */ | |
2321 | ||
2322 | /* pai/1997-06-03 FIXME: when we have debug info about default | |
2323 | * arguments and ellipsis parameter lists, we should consider those | |
2324 | * and rank the length-match more finely. */ | |
2325 | ||
2326 | LENGTH_MATCH (bv) = (nargs != nparms) ? LENGTH_MISMATCH_BADNESS : 0; | |
2327 | ||
2328 | /* Now rank all the parameters of the candidate function */ | |
2329 | for (i = 1; i <= min_len; i++) | |
2330 | bv->rank[i] = rank_one_type (parms[i-1], args[i-1]); | |
2331 | ||
2332 | /* If more arguments than parameters, add dummy entries */ | |
2333 | for (i = min_len + 1; i <= nargs; i++) | |
2334 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; | |
2335 | ||
2336 | return bv; | |
2337 | } | |
2338 | ||
2339 | /* Compare one type (PARM) for compatibility with another (ARG). | |
2340 | * PARM is intended to be the parameter type of a function; and | |
2341 | * ARG is the supplied argument's type. This function tests if | |
2342 | * the latter can be converted to the former. | |
2343 | * | |
2344 | * Return 0 if they are identical types; | |
2345 | * Otherwise, return an integer which corresponds to how compatible | |
2346 | * PARM is to ARG. The higher the return value, the worse the match. | |
2347 | * Generally the "bad" conversions are all uniformly assigned a 100 */ | |
2348 | ||
2349 | int | |
2350 | rank_one_type (struct type *parm, struct type *arg) | |
2351 | { | |
2352 | /* Identical type pointers */ | |
2353 | /* However, this still doesn't catch all cases of same type for arg | |
2354 | * and param. The reason is that builtin types are different from | |
2355 | * the same ones constructed from the object. */ | |
2356 | if (parm == arg) | |
2357 | return 0; | |
2358 | ||
2359 | /* Resolve typedefs */ | |
2360 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
2361 | parm = check_typedef (parm); | |
2362 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
2363 | arg = check_typedef (arg); | |
2364 | ||
2365 | /* | |
2366 | Well, damnit, if the names are exactly the same, | |
2367 | i'll say they are exactly the same. This happens when we generate | |
2368 | method stubs. The types won't point to the same address, but they | |
2369 | really are the same. | |
2370 | */ | |
2371 | ||
2372 | if (TYPE_NAME (parm) && TYPE_NAME (arg) && | |
2373 | !strcmp (TYPE_NAME (parm), TYPE_NAME (arg))) | |
2374 | return 0; | |
2375 | ||
2376 | /* Check if identical after resolving typedefs */ | |
2377 | if (parm == arg) | |
2378 | return 0; | |
2379 | ||
2380 | /* See through references, since we can almost make non-references | |
2381 | references. */ | |
2382 | if (TYPE_CODE (arg) == TYPE_CODE_REF) | |
2383 | return (rank_one_type (parm, TYPE_TARGET_TYPE (arg)) | |
2384 | + REFERENCE_CONVERSION_BADNESS); | |
2385 | if (TYPE_CODE (parm) == TYPE_CODE_REF) | |
2386 | return (rank_one_type (TYPE_TARGET_TYPE (parm), arg) | |
2387 | + REFERENCE_CONVERSION_BADNESS); | |
2388 | if (overload_debug) | |
2389 | /* Debugging only. */ | |
2390 | fprintf_filtered (gdb_stderr,"------ Arg is %s [%d], parm is %s [%d]\n", | |
2391 | TYPE_NAME (arg), TYPE_CODE (arg), TYPE_NAME (parm), TYPE_CODE (parm)); | |
2392 | ||
2393 | /* x -> y means arg of type x being supplied for parameter of type y */ | |
2394 | ||
2395 | switch (TYPE_CODE (parm)) | |
2396 | { | |
2397 | case TYPE_CODE_PTR: | |
2398 | switch (TYPE_CODE (arg)) | |
2399 | { | |
2400 | case TYPE_CODE_PTR: | |
2401 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) | |
2402 | return VOID_PTR_CONVERSION_BADNESS; | |
2403 | else | |
2404 | return rank_one_type (TYPE_TARGET_TYPE (parm), TYPE_TARGET_TYPE (arg)); | |
2405 | case TYPE_CODE_ARRAY: | |
2406 | return rank_one_type (TYPE_TARGET_TYPE (parm), TYPE_TARGET_TYPE (arg)); | |
2407 | case TYPE_CODE_FUNC: | |
2408 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg); | |
2409 | case TYPE_CODE_INT: | |
2410 | case TYPE_CODE_ENUM: | |
2411 | case TYPE_CODE_CHAR: | |
2412 | case TYPE_CODE_RANGE: | |
2413 | case TYPE_CODE_BOOL: | |
2414 | return POINTER_CONVERSION_BADNESS; | |
2415 | default: | |
2416 | return INCOMPATIBLE_TYPE_BADNESS; | |
2417 | } | |
2418 | case TYPE_CODE_ARRAY: | |
2419 | switch (TYPE_CODE (arg)) | |
2420 | { | |
2421 | case TYPE_CODE_PTR: | |
2422 | case TYPE_CODE_ARRAY: | |
2423 | return rank_one_type (TYPE_TARGET_TYPE (parm), TYPE_TARGET_TYPE (arg)); | |
2424 | default: | |
2425 | return INCOMPATIBLE_TYPE_BADNESS; | |
2426 | } | |
2427 | case TYPE_CODE_FUNC: | |
2428 | switch (TYPE_CODE (arg)) | |
2429 | { | |
2430 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
2431 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg)); | |
2432 | default: | |
2433 | return INCOMPATIBLE_TYPE_BADNESS; | |
2434 | } | |
2435 | case TYPE_CODE_INT: | |
2436 | switch (TYPE_CODE (arg)) | |
2437 | { | |
2438 | case TYPE_CODE_INT: | |
2439 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2440 | { | |
2441 | /* Deal with signed, unsigned, and plain chars and | |
2442 | signed and unsigned ints */ | |
2443 | if (TYPE_NOSIGN (parm)) | |
2444 | { | |
2445 | /* This case only for character types */ | |
2446 | if (TYPE_NOSIGN (arg)) /* plain char -> plain char */ | |
2447 | return 0; | |
2448 | else | |
2449 | return INTEGER_COERCION_BADNESS; /* signed/unsigned char -> plain char */ | |
2450 | } | |
2451 | else if (TYPE_UNSIGNED (parm)) | |
2452 | { | |
2453 | if (TYPE_UNSIGNED (arg)) | |
2454 | { | |
2455 | if (!strcmp_iw (TYPE_NAME (parm), TYPE_NAME (arg))) | |
2456 | return 0; /* unsigned int -> unsigned int, or unsigned long -> unsigned long */ | |
2457 | else if (!strcmp_iw (TYPE_NAME (arg), "int") && !strcmp_iw (TYPE_NAME (parm), "long")) | |
2458 | return INTEGER_PROMOTION_BADNESS; /* unsigned int -> unsigned long */ | |
2459 | else | |
2460 | return INTEGER_COERCION_BADNESS; /* unsigned long -> unsigned int */ | |
2461 | } | |
2462 | else | |
2463 | { | |
2464 | if (!strcmp_iw (TYPE_NAME (arg), "long") && !strcmp_iw (TYPE_NAME (parm), "int")) | |
2465 | return INTEGER_COERCION_BADNESS; /* signed long -> unsigned int */ | |
2466 | else | |
2467 | return INTEGER_CONVERSION_BADNESS; /* signed int/long -> unsigned int/long */ | |
2468 | } | |
2469 | } | |
2470 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2471 | { | |
2472 | if (!strcmp_iw (TYPE_NAME (parm), TYPE_NAME (arg))) | |
2473 | return 0; | |
2474 | else if (!strcmp_iw (TYPE_NAME (arg), "int") && !strcmp_iw (TYPE_NAME (parm), "long")) | |
2475 | return INTEGER_PROMOTION_BADNESS; | |
2476 | else | |
2477 | return INTEGER_COERCION_BADNESS; | |
2478 | } | |
2479 | else | |
2480 | return INTEGER_COERCION_BADNESS; | |
2481 | } | |
2482 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2483 | return INTEGER_PROMOTION_BADNESS; | |
2484 | else | |
2485 | return INTEGER_COERCION_BADNESS; | |
2486 | case TYPE_CODE_ENUM: | |
2487 | case TYPE_CODE_CHAR: | |
2488 | case TYPE_CODE_RANGE: | |
2489 | case TYPE_CODE_BOOL: | |
2490 | return INTEGER_PROMOTION_BADNESS; | |
2491 | case TYPE_CODE_FLT: | |
2492 | return INT_FLOAT_CONVERSION_BADNESS; | |
2493 | case TYPE_CODE_PTR: | |
2494 | return NS_POINTER_CONVERSION_BADNESS; | |
2495 | default: | |
2496 | return INCOMPATIBLE_TYPE_BADNESS; | |
2497 | } | |
2498 | break; | |
2499 | case TYPE_CODE_ENUM: | |
2500 | switch (TYPE_CODE (arg)) | |
2501 | { | |
2502 | case TYPE_CODE_INT: | |
2503 | case TYPE_CODE_CHAR: | |
2504 | case TYPE_CODE_RANGE: | |
2505 | case TYPE_CODE_BOOL: | |
2506 | case TYPE_CODE_ENUM: | |
2507 | return INTEGER_COERCION_BADNESS; | |
2508 | case TYPE_CODE_FLT: | |
2509 | return INT_FLOAT_CONVERSION_BADNESS; | |
2510 | default: | |
2511 | return INCOMPATIBLE_TYPE_BADNESS; | |
2512 | } | |
2513 | break; | |
2514 | case TYPE_CODE_CHAR: | |
2515 | switch (TYPE_CODE (arg)) | |
2516 | { | |
2517 | case TYPE_CODE_RANGE: | |
2518 | case TYPE_CODE_BOOL: | |
2519 | case TYPE_CODE_ENUM: | |
2520 | return INTEGER_COERCION_BADNESS; | |
2521 | case TYPE_CODE_FLT: | |
2522 | return INT_FLOAT_CONVERSION_BADNESS; | |
2523 | case TYPE_CODE_INT: | |
2524 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
2525 | return INTEGER_COERCION_BADNESS; | |
2526 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2527 | return INTEGER_PROMOTION_BADNESS; | |
2528 | /* >>> !! else fall through !! <<< */ | |
2529 | case TYPE_CODE_CHAR: | |
2530 | /* Deal with signed, unsigned, and plain chars for C++ | |
2531 | and with int cases falling through from previous case */ | |
2532 | if (TYPE_NOSIGN (parm)) | |
2533 | { | |
2534 | if (TYPE_NOSIGN (arg)) | |
2535 | return 0; | |
2536 | else | |
2537 | return INTEGER_COERCION_BADNESS; | |
2538 | } | |
2539 | else if (TYPE_UNSIGNED (parm)) | |
2540 | { | |
2541 | if (TYPE_UNSIGNED (arg)) | |
2542 | return 0; | |
2543 | else | |
2544 | return INTEGER_PROMOTION_BADNESS; | |
2545 | } | |
2546 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2547 | return 0; | |
2548 | else | |
2549 | return INTEGER_COERCION_BADNESS; | |
2550 | default: | |
2551 | return INCOMPATIBLE_TYPE_BADNESS; | |
2552 | } | |
2553 | break; | |
2554 | case TYPE_CODE_RANGE: | |
2555 | switch (TYPE_CODE (arg)) | |
2556 | { | |
2557 | case TYPE_CODE_INT: | |
2558 | case TYPE_CODE_CHAR: | |
2559 | case TYPE_CODE_RANGE: | |
2560 | case TYPE_CODE_BOOL: | |
2561 | case TYPE_CODE_ENUM: | |
2562 | return INTEGER_COERCION_BADNESS; | |
2563 | case TYPE_CODE_FLT: | |
2564 | return INT_FLOAT_CONVERSION_BADNESS; | |
2565 | default: | |
2566 | return INCOMPATIBLE_TYPE_BADNESS; | |
2567 | } | |
2568 | break; | |
2569 | case TYPE_CODE_BOOL: | |
2570 | switch (TYPE_CODE (arg)) | |
2571 | { | |
2572 | case TYPE_CODE_INT: | |
2573 | case TYPE_CODE_CHAR: | |
2574 | case TYPE_CODE_RANGE: | |
2575 | case TYPE_CODE_ENUM: | |
2576 | case TYPE_CODE_FLT: | |
2577 | case TYPE_CODE_PTR: | |
2578 | return BOOLEAN_CONVERSION_BADNESS; | |
2579 | case TYPE_CODE_BOOL: | |
2580 | return 0; | |
2581 | default: | |
2582 | return INCOMPATIBLE_TYPE_BADNESS; | |
2583 | } | |
2584 | break; | |
2585 | case TYPE_CODE_FLT: | |
2586 | switch (TYPE_CODE (arg)) | |
2587 | { | |
2588 | case TYPE_CODE_FLT: | |
2589 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2590 | return FLOAT_PROMOTION_BADNESS; | |
2591 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2592 | return 0; | |
2593 | else | |
2594 | return FLOAT_CONVERSION_BADNESS; | |
2595 | case TYPE_CODE_INT: | |
2596 | case TYPE_CODE_BOOL: | |
2597 | case TYPE_CODE_ENUM: | |
2598 | case TYPE_CODE_RANGE: | |
2599 | case TYPE_CODE_CHAR: | |
2600 | return INT_FLOAT_CONVERSION_BADNESS; | |
2601 | default: | |
2602 | return INCOMPATIBLE_TYPE_BADNESS; | |
2603 | } | |
2604 | break; | |
2605 | case TYPE_CODE_COMPLEX: | |
2606 | switch (TYPE_CODE (arg)) | |
2607 | { /* Strictly not needed for C++, but... */ | |
2608 | case TYPE_CODE_FLT: | |
2609 | return FLOAT_PROMOTION_BADNESS; | |
2610 | case TYPE_CODE_COMPLEX: | |
2611 | return 0; | |
2612 | default: | |
2613 | return INCOMPATIBLE_TYPE_BADNESS; | |
2614 | } | |
2615 | break; | |
2616 | case TYPE_CODE_STRUCT: | |
2617 | /* currently same as TYPE_CODE_CLASS */ | |
2618 | switch (TYPE_CODE (arg)) | |
2619 | { | |
2620 | case TYPE_CODE_STRUCT: | |
2621 | /* Check for derivation */ | |
2622 | if (is_ancestor (parm, arg)) | |
2623 | return BASE_CONVERSION_BADNESS; | |
2624 | /* else fall through */ | |
2625 | default: | |
2626 | return INCOMPATIBLE_TYPE_BADNESS; | |
2627 | } | |
2628 | break; | |
2629 | case TYPE_CODE_UNION: | |
2630 | switch (TYPE_CODE (arg)) | |
2631 | { | |
2632 | case TYPE_CODE_UNION: | |
2633 | default: | |
2634 | return INCOMPATIBLE_TYPE_BADNESS; | |
2635 | } | |
2636 | break; | |
2637 | case TYPE_CODE_MEMBER: | |
2638 | switch (TYPE_CODE (arg)) | |
2639 | { | |
2640 | default: | |
2641 | return INCOMPATIBLE_TYPE_BADNESS; | |
2642 | } | |
2643 | break; | |
2644 | case TYPE_CODE_METHOD: | |
2645 | switch (TYPE_CODE (arg)) | |
2646 | { | |
2647 | ||
2648 | default: | |
2649 | return INCOMPATIBLE_TYPE_BADNESS; | |
2650 | } | |
2651 | break; | |
2652 | case TYPE_CODE_REF: | |
2653 | switch (TYPE_CODE (arg)) | |
2654 | { | |
2655 | ||
2656 | default: | |
2657 | return INCOMPATIBLE_TYPE_BADNESS; | |
2658 | } | |
2659 | ||
2660 | break; | |
2661 | case TYPE_CODE_SET: | |
2662 | switch (TYPE_CODE (arg)) | |
2663 | { | |
2664 | /* Not in C++ */ | |
2665 | case TYPE_CODE_SET: | |
2666 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), TYPE_FIELD_TYPE (arg, 0)); | |
2667 | default: | |
2668 | return INCOMPATIBLE_TYPE_BADNESS; | |
2669 | } | |
2670 | break; | |
2671 | case TYPE_CODE_VOID: | |
2672 | default: | |
2673 | return INCOMPATIBLE_TYPE_BADNESS; | |
2674 | } /* switch (TYPE_CODE (arg)) */ | |
2675 | } | |
2676 | ||
2677 | ||
2678 | /* End of functions for overload resolution */ | |
2679 | ||
2680 | static void | |
2681 | print_bit_vector (B_TYPE *bits, int nbits) | |
2682 | { | |
2683 | int bitno; | |
2684 | ||
2685 | for (bitno = 0; bitno < nbits; bitno++) | |
2686 | { | |
2687 | if ((bitno % 8) == 0) | |
2688 | { | |
2689 | puts_filtered (" "); | |
2690 | } | |
2691 | if (B_TST (bits, bitno)) | |
2692 | { | |
2693 | printf_filtered ("1"); | |
2694 | } | |
2695 | else | |
2696 | { | |
2697 | printf_filtered ("0"); | |
2698 | } | |
2699 | } | |
2700 | } | |
2701 | ||
2702 | /* The args list is a strange beast. It is either terminated by a NULL | |
2703 | pointer for varargs functions, or by a pointer to a TYPE_CODE_VOID | |
2704 | type for normal fixed argcount functions. (FIXME someday) | |
2705 | Also note the first arg should be the "this" pointer, we may not want to | |
2706 | include it since we may get into a infinitely recursive situation. */ | |
2707 | ||
2708 | static void | |
2709 | print_arg_types (struct type **args, int spaces) | |
2710 | { | |
2711 | if (args != NULL) | |
2712 | { | |
2713 | while (*args != NULL) | |
2714 | { | |
2715 | recursive_dump_type (*args, spaces + 2); | |
2716 | if ((*args++)->code == TYPE_CODE_VOID) | |
2717 | { | |
2718 | break; | |
2719 | } | |
2720 | } | |
2721 | } | |
2722 | } | |
2723 | ||
2724 | static void | |
2725 | dump_fn_fieldlists (struct type *type, int spaces) | |
2726 | { | |
2727 | int method_idx; | |
2728 | int overload_idx; | |
2729 | struct fn_field *f; | |
2730 | ||
2731 | printfi_filtered (spaces, "fn_fieldlists "); | |
2732 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); | |
2733 | printf_filtered ("\n"); | |
2734 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
2735 | { | |
2736 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
2737 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
2738 | method_idx, | |
2739 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
2740 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), | |
2741 | gdb_stdout); | |
2742 | printf_filtered (") length %d\n", | |
2743 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); | |
2744 | for (overload_idx = 0; | |
2745 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
2746 | overload_idx++) | |
2747 | { | |
2748 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
2749 | overload_idx, | |
2750 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
2751 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), | |
2752 | gdb_stdout); | |
2753 | printf_filtered (")\n"); | |
2754 | printfi_filtered (spaces + 8, "type "); | |
2755 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), gdb_stdout); | |
2756 | printf_filtered ("\n"); | |
2757 | ||
2758 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
2759 | spaces + 8 + 2); | |
2760 | ||
2761 | printfi_filtered (spaces + 8, "args "); | |
2762 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), gdb_stdout); | |
2763 | printf_filtered ("\n"); | |
2764 | ||
2765 | print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), spaces); | |
2766 | printfi_filtered (spaces + 8, "fcontext "); | |
2767 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), | |
2768 | gdb_stdout); | |
2769 | printf_filtered ("\n"); | |
2770 | ||
2771 | printfi_filtered (spaces + 8, "is_const %d\n", | |
2772 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
2773 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
2774 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
2775 | printfi_filtered (spaces + 8, "is_private %d\n", | |
2776 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
2777 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
2778 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
2779 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
2780 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
2781 | printfi_filtered (spaces + 8, "voffset %u\n", | |
2782 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
2783 | } | |
2784 | } | |
2785 | } | |
2786 | ||
2787 | static void | |
2788 | print_cplus_stuff (struct type *type, int spaces) | |
2789 | { | |
2790 | printfi_filtered (spaces, "n_baseclasses %d\n", | |
2791 | TYPE_N_BASECLASSES (type)); | |
2792 | printfi_filtered (spaces, "nfn_fields %d\n", | |
2793 | TYPE_NFN_FIELDS (type)); | |
2794 | printfi_filtered (spaces, "nfn_fields_total %d\n", | |
2795 | TYPE_NFN_FIELDS_TOTAL (type)); | |
2796 | if (TYPE_N_BASECLASSES (type) > 0) | |
2797 | { | |
2798 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
2799 | TYPE_N_BASECLASSES (type)); | |
2800 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), gdb_stdout); | |
2801 | printf_filtered (")"); | |
2802 | ||
2803 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
2804 | TYPE_N_BASECLASSES (type)); | |
2805 | puts_filtered ("\n"); | |
2806 | } | |
2807 | if (TYPE_NFIELDS (type) > 0) | |
2808 | { | |
2809 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
2810 | { | |
2811 | printfi_filtered (spaces, "private_field_bits (%d bits at *", | |
2812 | TYPE_NFIELDS (type)); | |
2813 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), gdb_stdout); | |
2814 | printf_filtered (")"); | |
2815 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
2816 | TYPE_NFIELDS (type)); | |
2817 | puts_filtered ("\n"); | |
2818 | } | |
2819 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
2820 | { | |
2821 | printfi_filtered (spaces, "protected_field_bits (%d bits at *", | |
2822 | TYPE_NFIELDS (type)); | |
2823 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), gdb_stdout); | |
2824 | printf_filtered (")"); | |
2825 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
2826 | TYPE_NFIELDS (type)); | |
2827 | puts_filtered ("\n"); | |
2828 | } | |
2829 | } | |
2830 | if (TYPE_NFN_FIELDS (type) > 0) | |
2831 | { | |
2832 | dump_fn_fieldlists (type, spaces); | |
2833 | } | |
2834 | } | |
2835 | ||
2836 | static void | |
2837 | print_bound_type (int bt) | |
2838 | { | |
2839 | switch (bt) | |
2840 | { | |
2841 | case BOUND_CANNOT_BE_DETERMINED: | |
2842 | printf_filtered ("(BOUND_CANNOT_BE_DETERMINED)"); | |
2843 | break; | |
2844 | case BOUND_BY_REF_ON_STACK: | |
2845 | printf_filtered ("(BOUND_BY_REF_ON_STACK)"); | |
2846 | break; | |
2847 | case BOUND_BY_VALUE_ON_STACK: | |
2848 | printf_filtered ("(BOUND_BY_VALUE_ON_STACK)"); | |
2849 | break; | |
2850 | case BOUND_BY_REF_IN_REG: | |
2851 | printf_filtered ("(BOUND_BY_REF_IN_REG)"); | |
2852 | break; | |
2853 | case BOUND_BY_VALUE_IN_REG: | |
2854 | printf_filtered ("(BOUND_BY_VALUE_IN_REG)"); | |
2855 | break; | |
2856 | case BOUND_SIMPLE: | |
2857 | printf_filtered ("(BOUND_SIMPLE)"); | |
2858 | break; | |
2859 | default: | |
2860 | printf_filtered ("(unknown bound type)"); | |
2861 | break; | |
2862 | } | |
2863 | } | |
2864 | ||
2865 | static struct obstack dont_print_type_obstack; | |
2866 | ||
2867 | void | |
2868 | recursive_dump_type (struct type *type, int spaces) | |
2869 | { | |
2870 | int idx; | |
2871 | ||
2872 | if (spaces == 0) | |
2873 | obstack_begin (&dont_print_type_obstack, 0); | |
2874 | ||
2875 | if (TYPE_NFIELDS (type) > 0 | |
2876 | || (TYPE_CPLUS_SPECIFIC (type) && TYPE_NFN_FIELDS (type) > 0)) | |
2877 | { | |
2878 | struct type **first_dont_print | |
2879 | = (struct type **) obstack_base (&dont_print_type_obstack); | |
2880 | ||
2881 | int i = (struct type **) obstack_next_free (&dont_print_type_obstack) | |
2882 | - first_dont_print; | |
2883 | ||
2884 | while (--i >= 0) | |
2885 | { | |
2886 | if (type == first_dont_print[i]) | |
2887 | { | |
2888 | printfi_filtered (spaces, "type node "); | |
2889 | gdb_print_host_address (type, gdb_stdout); | |
2890 | printf_filtered (" <same as already seen type>\n"); | |
2891 | return; | |
2892 | } | |
2893 | } | |
2894 | ||
2895 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
2896 | } | |
2897 | ||
2898 | printfi_filtered (spaces, "type node "); | |
2899 | gdb_print_host_address (type, gdb_stdout); | |
2900 | printf_filtered ("\n"); | |
2901 | printfi_filtered (spaces, "name '%s' (", | |
2902 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
2903 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); | |
2904 | printf_filtered (")\n"); | |
2905 | printfi_filtered (spaces, "tagname '%s' (", | |
2906 | TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>"); | |
2907 | gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); | |
2908 | printf_filtered (")\n"); | |
2909 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); | |
2910 | switch (TYPE_CODE (type)) | |
2911 | { | |
2912 | case TYPE_CODE_UNDEF: | |
2913 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
2914 | break; | |
2915 | case TYPE_CODE_PTR: | |
2916 | printf_filtered ("(TYPE_CODE_PTR)"); | |
2917 | break; | |
2918 | case TYPE_CODE_ARRAY: | |
2919 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
2920 | break; | |
2921 | case TYPE_CODE_STRUCT: | |
2922 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
2923 | break; | |
2924 | case TYPE_CODE_UNION: | |
2925 | printf_filtered ("(TYPE_CODE_UNION)"); | |
2926 | break; | |
2927 | case TYPE_CODE_ENUM: | |
2928 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
2929 | break; | |
2930 | case TYPE_CODE_FUNC: | |
2931 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
2932 | break; | |
2933 | case TYPE_CODE_INT: | |
2934 | printf_filtered ("(TYPE_CODE_INT)"); | |
2935 | break; | |
2936 | case TYPE_CODE_FLT: | |
2937 | printf_filtered ("(TYPE_CODE_FLT)"); | |
2938 | break; | |
2939 | case TYPE_CODE_VOID: | |
2940 | printf_filtered ("(TYPE_CODE_VOID)"); | |
2941 | break; | |
2942 | case TYPE_CODE_SET: | |
2943 | printf_filtered ("(TYPE_CODE_SET)"); | |
2944 | break; | |
2945 | case TYPE_CODE_RANGE: | |
2946 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
2947 | break; | |
2948 | case TYPE_CODE_STRING: | |
2949 | printf_filtered ("(TYPE_CODE_STRING)"); | |
2950 | break; | |
2951 | case TYPE_CODE_BITSTRING: | |
2952 | printf_filtered ("(TYPE_CODE_BITSTRING)"); | |
2953 | break; | |
2954 | case TYPE_CODE_ERROR: | |
2955 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
2956 | break; | |
2957 | case TYPE_CODE_MEMBER: | |
2958 | printf_filtered ("(TYPE_CODE_MEMBER)"); | |
2959 | break; | |
2960 | case TYPE_CODE_METHOD: | |
2961 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
2962 | break; | |
2963 | case TYPE_CODE_REF: | |
2964 | printf_filtered ("(TYPE_CODE_REF)"); | |
2965 | break; | |
2966 | case TYPE_CODE_CHAR: | |
2967 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
2968 | break; | |
2969 | case TYPE_CODE_BOOL: | |
2970 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
2971 | break; | |
2972 | case TYPE_CODE_COMPLEX: | |
2973 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
2974 | break; | |
2975 | case TYPE_CODE_TYPEDEF: | |
2976 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
2977 | break; | |
2978 | case TYPE_CODE_TEMPLATE: | |
2979 | printf_filtered ("(TYPE_CODE_TEMPLATE)"); | |
2980 | break; | |
2981 | case TYPE_CODE_TEMPLATE_ARG: | |
2982 | printf_filtered ("(TYPE_CODE_TEMPLATE_ARG)"); | |
2983 | break; | |
2984 | default: | |
2985 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
2986 | break; | |
2987 | } | |
2988 | puts_filtered ("\n"); | |
2989 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
2990 | printfi_filtered (spaces, "upper_bound_type 0x%x ", | |
2991 | TYPE_ARRAY_UPPER_BOUND_TYPE (type)); | |
2992 | print_bound_type (TYPE_ARRAY_UPPER_BOUND_TYPE (type)); | |
2993 | puts_filtered ("\n"); | |
2994 | printfi_filtered (spaces, "lower_bound_type 0x%x ", | |
2995 | TYPE_ARRAY_LOWER_BOUND_TYPE (type)); | |
2996 | print_bound_type (TYPE_ARRAY_LOWER_BOUND_TYPE (type)); | |
2997 | puts_filtered ("\n"); | |
2998 | printfi_filtered (spaces, "objfile "); | |
2999 | gdb_print_host_address (TYPE_OBJFILE (type), gdb_stdout); | |
3000 | printf_filtered ("\n"); | |
3001 | printfi_filtered (spaces, "target_type "); | |
3002 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); | |
3003 | printf_filtered ("\n"); | |
3004 | if (TYPE_TARGET_TYPE (type) != NULL) | |
3005 | { | |
3006 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
3007 | } | |
3008 | printfi_filtered (spaces, "pointer_type "); | |
3009 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); | |
3010 | printf_filtered ("\n"); | |
3011 | printfi_filtered (spaces, "reference_type "); | |
3012 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); | |
3013 | printf_filtered ("\n"); | |
3014 | printfi_filtered (spaces, "cv_type "); | |
3015 | gdb_print_host_address (TYPE_CV_TYPE (type), gdb_stdout); | |
3016 | printf_filtered ("\n"); | |
3017 | printfi_filtered (spaces, "as_type "); | |
3018 | gdb_print_host_address (TYPE_AS_TYPE (type), gdb_stdout); | |
3019 | printf_filtered ("\n"); | |
3020 | printfi_filtered (spaces, "flags 0x%x", TYPE_FLAGS (type)); | |
3021 | if (TYPE_UNSIGNED (type)) | |
3022 | { | |
3023 | puts_filtered (" TYPE_FLAG_UNSIGNED"); | |
3024 | } | |
3025 | if (TYPE_NOSIGN (type)) | |
3026 | { | |
3027 | puts_filtered (" TYPE_FLAG_NOSIGN"); | |
3028 | } | |
3029 | if (TYPE_STUB (type)) | |
3030 | { | |
3031 | puts_filtered (" TYPE_FLAG_STUB"); | |
3032 | } | |
3033 | if (TYPE_TARGET_STUB (type)) | |
3034 | { | |
3035 | puts_filtered (" TYPE_FLAG_TARGET_STUB"); | |
3036 | } | |
3037 | if (TYPE_STATIC (type)) | |
3038 | { | |
3039 | puts_filtered (" TYPE_FLAG_STATIC"); | |
3040 | } | |
3041 | if (TYPE_CONST (type)) | |
3042 | { | |
3043 | puts_filtered (" TYPE_FLAG_CONST"); | |
3044 | } | |
3045 | if (TYPE_VOLATILE (type)) | |
3046 | { | |
3047 | puts_filtered (" TYPE_FLAG_VOLATILE"); | |
3048 | } | |
3049 | if (TYPE_PROTOTYPED (type)) | |
3050 | { | |
3051 | puts_filtered (" TYPE_FLAG_PROTOTYPED"); | |
3052 | } | |
3053 | if (TYPE_INCOMPLETE (type)) | |
3054 | { | |
3055 | puts_filtered (" TYPE_FLAG_INCOMPLETE"); | |
3056 | } | |
3057 | if (TYPE_CODE_SPACE (type)) | |
3058 | { | |
3059 | puts_filtered (" TYPE_FLAG_CODE_SPACE"); | |
3060 | } | |
3061 | if (TYPE_DATA_SPACE (type)) | |
3062 | { | |
3063 | puts_filtered (" TYPE_FLAG_DATA_SPACE"); | |
3064 | } | |
3065 | if (TYPE_VARARGS (type)) | |
3066 | { | |
3067 | puts_filtered (" TYPE_FLAG_VARARGS"); | |
3068 | } | |
3069 | /* This is used for things like AltiVec registers on ppc. Gcc emits | |
3070 | an attribute for the array type, which tells whether or not we | |
3071 | have a vector, instead of a regular array. */ | |
3072 | if (TYPE_VECTOR (type)) | |
3073 | { | |
3074 | puts_filtered (" TYPE_FLAG_VECTOR"); | |
3075 | } | |
3076 | puts_filtered ("\n"); | |
3077 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
3078 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); | |
3079 | puts_filtered ("\n"); | |
3080 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
3081 | { | |
3082 | printfi_filtered (spaces + 2, | |
3083 | "[%d] bitpos %d bitsize %d type ", | |
3084 | idx, TYPE_FIELD_BITPOS (type, idx), | |
3085 | TYPE_FIELD_BITSIZE (type, idx)); | |
3086 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); | |
3087 | printf_filtered (" name '%s' (", | |
3088 | TYPE_FIELD_NAME (type, idx) != NULL | |
3089 | ? TYPE_FIELD_NAME (type, idx) | |
3090 | : "<NULL>"); | |
3091 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); | |
3092 | printf_filtered (")\n"); | |
3093 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
3094 | { | |
3095 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
3096 | } | |
3097 | } | |
3098 | printfi_filtered (spaces, "vptr_basetype "); | |
3099 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); | |
3100 | puts_filtered ("\n"); | |
3101 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
3102 | { | |
3103 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
3104 | } | |
3105 | printfi_filtered (spaces, "vptr_fieldno %d\n", TYPE_VPTR_FIELDNO (type)); | |
3106 | switch (TYPE_CODE (type)) | |
3107 | { | |
3108 | case TYPE_CODE_METHOD: | |
3109 | case TYPE_CODE_FUNC: | |
3110 | printfi_filtered (spaces, "arg_types "); | |
3111 | gdb_print_host_address (TYPE_ARG_TYPES (type), gdb_stdout); | |
3112 | puts_filtered ("\n"); | |
3113 | print_arg_types (TYPE_ARG_TYPES (type), spaces); | |
3114 | break; | |
3115 | ||
3116 | case TYPE_CODE_STRUCT: | |
3117 | printfi_filtered (spaces, "cplus_stuff "); | |
3118 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), gdb_stdout); | |
3119 | puts_filtered ("\n"); | |
3120 | print_cplus_stuff (type, spaces); | |
3121 | break; | |
3122 | ||
3123 | case TYPE_CODE_FLT: | |
3124 | printfi_filtered (spaces, "floatformat "); | |
3125 | if (TYPE_FLOATFORMAT (type) == NULL | |
3126 | || TYPE_FLOATFORMAT (type)->name == NULL) | |
3127 | puts_filtered ("(null)"); | |
3128 | else | |
3129 | puts_filtered (TYPE_FLOATFORMAT (type)->name); | |
3130 | puts_filtered ("\n"); | |
3131 | break; | |
3132 | ||
3133 | default: | |
3134 | /* We have to pick one of the union types to be able print and test | |
3135 | the value. Pick cplus_struct_type, even though we know it isn't | |
3136 | any particular one. */ | |
3137 | printfi_filtered (spaces, "type_specific "); | |
3138 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), gdb_stdout); | |
3139 | if (TYPE_CPLUS_SPECIFIC (type) != NULL) | |
3140 | { | |
3141 | printf_filtered (" (unknown data form)"); | |
3142 | } | |
3143 | printf_filtered ("\n"); | |
3144 | break; | |
3145 | ||
3146 | } | |
3147 | if (spaces == 0) | |
3148 | obstack_free (&dont_print_type_obstack, NULL); | |
3149 | } | |
3150 | ||
3151 | static void build_gdbtypes (void); | |
3152 | static void | |
3153 | build_gdbtypes (void) | |
3154 | { | |
3155 | builtin_type_void = | |
3156 | init_type (TYPE_CODE_VOID, 1, | |
3157 | 0, | |
3158 | "void", (struct objfile *) NULL); | |
3159 | builtin_type_char = | |
3160 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3161 | (TYPE_FLAG_NOSIGN | |
3162 | | (TARGET_CHAR_SIGNED ? 0 : TYPE_FLAG_UNSIGNED)), | |
3163 | "char", (struct objfile *) NULL); | |
3164 | builtin_type_true_char = | |
3165 | init_type (TYPE_CODE_CHAR, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3166 | 0, | |
3167 | "true character", (struct objfile *) NULL); | |
3168 | builtin_type_signed_char = | |
3169 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3170 | 0, | |
3171 | "signed char", (struct objfile *) NULL); | |
3172 | builtin_type_unsigned_char = | |
3173 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3174 | TYPE_FLAG_UNSIGNED, | |
3175 | "unsigned char", (struct objfile *) NULL); | |
3176 | builtin_type_short = | |
3177 | init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT, | |
3178 | 0, | |
3179 | "short", (struct objfile *) NULL); | |
3180 | builtin_type_unsigned_short = | |
3181 | init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT, | |
3182 | TYPE_FLAG_UNSIGNED, | |
3183 | "unsigned short", (struct objfile *) NULL); | |
3184 | builtin_type_int = | |
3185 | init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, | |
3186 | 0, | |
3187 | "int", (struct objfile *) NULL); | |
3188 | builtin_type_unsigned_int = | |
3189 | init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, | |
3190 | TYPE_FLAG_UNSIGNED, | |
3191 | "unsigned int", (struct objfile *) NULL); | |
3192 | builtin_type_long = | |
3193 | init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, | |
3194 | 0, | |
3195 | "long", (struct objfile *) NULL); | |
3196 | builtin_type_unsigned_long = | |
3197 | init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, | |
3198 | TYPE_FLAG_UNSIGNED, | |
3199 | "unsigned long", (struct objfile *) NULL); | |
3200 | builtin_type_long_long = | |
3201 | init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, | |
3202 | 0, | |
3203 | "long long", (struct objfile *) NULL); | |
3204 | builtin_type_unsigned_long_long = | |
3205 | init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, | |
3206 | TYPE_FLAG_UNSIGNED, | |
3207 | "unsigned long long", (struct objfile *) NULL); | |
3208 | builtin_type_float = | |
3209 | init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT, | |
3210 | 0, | |
3211 | "float", (struct objfile *) NULL); | |
3212 | /* vinschen@redhat.com 2002-02-08: | |
3213 | The below lines are disabled since they are doing the wrong | |
3214 | thing for non-multiarch targets. They are setting the correct | |
3215 | type of floats for the target but while on multiarch targets | |
3216 | this is done everytime the architecture changes, it's done on | |
3217 | non-multiarch targets only on startup, leaving the wrong values | |
3218 | in even if the architecture changes (eg. from big-endian to | |
3219 | little-endian). */ | |
3220 | #if 0 | |
3221 | TYPE_FLOATFORMAT (builtin_type_float) = TARGET_FLOAT_FORMAT; | |
3222 | #endif | |
3223 | builtin_type_double = | |
3224 | init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, | |
3225 | 0, | |
3226 | "double", (struct objfile *) NULL); | |
3227 | #if 0 | |
3228 | TYPE_FLOATFORMAT (builtin_type_double) = TARGET_DOUBLE_FORMAT; | |
3229 | #endif | |
3230 | builtin_type_long_double = | |
3231 | init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT, | |
3232 | 0, | |
3233 | "long double", (struct objfile *) NULL); | |
3234 | #if 0 | |
3235 | TYPE_FLOATFORMAT (builtin_type_long_double) = TARGET_LONG_DOUBLE_FORMAT; | |
3236 | #endif | |
3237 | builtin_type_complex = | |
3238 | init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT, | |
3239 | 0, | |
3240 | "complex", (struct objfile *) NULL); | |
3241 | TYPE_TARGET_TYPE (builtin_type_complex) = builtin_type_float; | |
3242 | builtin_type_double_complex = | |
3243 | init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, | |
3244 | 0, | |
3245 | "double complex", (struct objfile *) NULL); | |
3246 | TYPE_TARGET_TYPE (builtin_type_double_complex) = builtin_type_double; | |
3247 | builtin_type_string = | |
3248 | init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3249 | 0, | |
3250 | "string", (struct objfile *) NULL); | |
3251 | builtin_type_int8 = | |
3252 | init_type (TYPE_CODE_INT, 8 / 8, | |
3253 | 0, | |
3254 | "int8_t", (struct objfile *) NULL); | |
3255 | builtin_type_uint8 = | |
3256 | init_type (TYPE_CODE_INT, 8 / 8, | |
3257 | TYPE_FLAG_UNSIGNED, | |
3258 | "uint8_t", (struct objfile *) NULL); | |
3259 | builtin_type_int16 = | |
3260 | init_type (TYPE_CODE_INT, 16 / 8, | |
3261 | 0, | |
3262 | "int16_t", (struct objfile *) NULL); | |
3263 | builtin_type_uint16 = | |
3264 | init_type (TYPE_CODE_INT, 16 / 8, | |
3265 | TYPE_FLAG_UNSIGNED, | |
3266 | "uint16_t", (struct objfile *) NULL); | |
3267 | builtin_type_int32 = | |
3268 | init_type (TYPE_CODE_INT, 32 / 8, | |
3269 | 0, | |
3270 | "int32_t", (struct objfile *) NULL); | |
3271 | builtin_type_uint32 = | |
3272 | init_type (TYPE_CODE_INT, 32 / 8, | |
3273 | TYPE_FLAG_UNSIGNED, | |
3274 | "uint32_t", (struct objfile *) NULL); | |
3275 | builtin_type_int64 = | |
3276 | init_type (TYPE_CODE_INT, 64 / 8, | |
3277 | 0, | |
3278 | "int64_t", (struct objfile *) NULL); | |
3279 | builtin_type_uint64 = | |
3280 | init_type (TYPE_CODE_INT, 64 / 8, | |
3281 | TYPE_FLAG_UNSIGNED, | |
3282 | "uint64_t", (struct objfile *) NULL); | |
3283 | builtin_type_int128 = | |
3284 | init_type (TYPE_CODE_INT, 128 / 8, | |
3285 | 0, | |
3286 | "int128_t", (struct objfile *) NULL); | |
3287 | builtin_type_uint128 = | |
3288 | init_type (TYPE_CODE_INT, 128 / 8, | |
3289 | TYPE_FLAG_UNSIGNED, | |
3290 | "uint128_t", (struct objfile *) NULL); | |
3291 | builtin_type_bool = | |
3292 | init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3293 | 0, | |
3294 | "bool", (struct objfile *) NULL); | |
3295 | ||
3296 | /* Add user knob for controlling resolution of opaque types */ | |
3297 | add_show_from_set | |
3298 | (add_set_cmd ("opaque-type-resolution", class_support, var_boolean, (char *) &opaque_type_resolution, | |
3299 | "Set resolution of opaque struct/class/union types (if set before loading symbols).", | |
3300 | &setlist), | |
3301 | &showlist); | |
3302 | opaque_type_resolution = 1; | |
3303 | ||
3304 | /* Build SIMD types. */ | |
3305 | builtin_type_v4sf | |
3306 | = init_simd_type ("__builtin_v4sf", builtin_type_float, "f", 4); | |
3307 | builtin_type_v4si | |
3308 | = init_simd_type ("__builtin_v4si", builtin_type_int32, "f", 4); | |
3309 | builtin_type_v16qi | |
3310 | = init_simd_type ("__builtin_v16qi", builtin_type_int8, "f", 16); | |
3311 | builtin_type_v8qi | |
3312 | = init_simd_type ("__builtin_v8qi", builtin_type_int8, "f", 8); | |
3313 | builtin_type_v8hi | |
3314 | = init_simd_type ("__builtin_v8hi", builtin_type_int16, "f", 8); | |
3315 | builtin_type_v4hi | |
3316 | = init_simd_type ("__builtin_v4hi", builtin_type_int16, "f", 4); | |
3317 | builtin_type_v2si | |
3318 | = init_simd_type ("__builtin_v2si", builtin_type_int32, "f", 2); | |
3319 | ||
3320 | /* 128 bit vectors. */ | |
3321 | builtin_type_v4_float = init_vector_type (builtin_type_float, 4); | |
3322 | builtin_type_v4_int32 = init_vector_type (builtin_type_int32, 4); | |
3323 | builtin_type_v8_int16 = init_vector_type (builtin_type_int16, 8); | |
3324 | builtin_type_v16_int8 = init_vector_type (builtin_type_int8, 16); | |
3325 | /* 64 bit vectors. */ | |
3326 | builtin_type_v2_float = init_vector_type (builtin_type_float, 2); | |
3327 | builtin_type_v2_int32 = init_vector_type (builtin_type_int32, 2); | |
3328 | builtin_type_v4_int16 = init_vector_type (builtin_type_int16, 4); | |
3329 | builtin_type_v8_int8 = init_vector_type (builtin_type_int8, 8); | |
3330 | ||
3331 | /* Vector types. */ | |
3332 | builtin_type_vec128 = build_builtin_type_vec128 (); | |
3333 | ||
3334 | /* Pointer/Address types. */ | |
3335 | ||
3336 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
3337 | the same --- for example, on the D10V, pointers are 16 bits long, | |
3338 | but addresses are 32 bits long. See doc/gdbint.texinfo, | |
3339 | ``Pointers Are Not Always Addresses''. | |
3340 | ||
3341 | The upshot is: | |
3342 | - gdb's `struct type' always describes the target's | |
3343 | representation. | |
3344 | - gdb's `struct value' objects should always hold values in | |
3345 | target form. | |
3346 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
3347 | address space that the assembler and linker work with. Thus, | |
3348 | since target_read_memory takes a CORE_ADDR as an argument, it | |
3349 | can access any memory on the target, even if the processor has | |
3350 | separate code and data address spaces. | |
3351 | ||
3352 | So, for example: | |
3353 | - If v is a value holding a D10V code pointer, its contents are | |
3354 | in target form: a big-endian address left-shifted two bits. | |
3355 | - If p is a D10V pointer type, TYPE_LENGTH (p) == 2, just as | |
3356 | sizeof (void *) == 2 on the target. | |
3357 | ||
3358 | In this context, builtin_type_CORE_ADDR is a bit odd: it's a | |
3359 | target type for a value the target will never see. It's only | |
3360 | used to hold the values of (typeless) linker symbols, which are | |
3361 | indeed in the unified virtual address space. */ | |
3362 | builtin_type_void_data_ptr = make_pointer_type (builtin_type_void, NULL); | |
3363 | builtin_type_void_func_ptr | |
3364 | = lookup_pointer_type (lookup_function_type (builtin_type_void)); | |
3365 | builtin_type_CORE_ADDR = | |
3366 | init_type (TYPE_CODE_INT, TARGET_ADDR_BIT / 8, | |
3367 | TYPE_FLAG_UNSIGNED, | |
3368 | "__CORE_ADDR", (struct objfile *) NULL); | |
3369 | builtin_type_bfd_vma = | |
3370 | init_type (TYPE_CODE_INT, TARGET_BFD_VMA_BIT / 8, | |
3371 | TYPE_FLAG_UNSIGNED, | |
3372 | "__bfd_vma", (struct objfile *) NULL); | |
3373 | } | |
3374 | ||
3375 | ||
3376 | extern void _initialize_gdbtypes (void); | |
3377 | void | |
3378 | _initialize_gdbtypes (void) | |
3379 | { | |
3380 | struct cmd_list_element *c; | |
3381 | build_gdbtypes (); | |
3382 | ||
3383 | /* FIXME - For the moment, handle types by swapping them in and out. | |
3384 | Should be using the per-architecture data-pointer and a large | |
3385 | struct. */ | |
3386 | register_gdbarch_swap (&builtin_type_void, sizeof (struct type *), NULL); | |
3387 | register_gdbarch_swap (&builtin_type_char, sizeof (struct type *), NULL); | |
3388 | register_gdbarch_swap (&builtin_type_short, sizeof (struct type *), NULL); | |
3389 | register_gdbarch_swap (&builtin_type_int, sizeof (struct type *), NULL); | |
3390 | register_gdbarch_swap (&builtin_type_long, sizeof (struct type *), NULL); | |
3391 | register_gdbarch_swap (&builtin_type_long_long, sizeof (struct type *), NULL); | |
3392 | register_gdbarch_swap (&builtin_type_signed_char, sizeof (struct type *), NULL); | |
3393 | register_gdbarch_swap (&builtin_type_unsigned_char, sizeof (struct type *), NULL); | |
3394 | register_gdbarch_swap (&builtin_type_unsigned_short, sizeof (struct type *), NULL); | |
3395 | register_gdbarch_swap (&builtin_type_unsigned_int, sizeof (struct type *), NULL); | |
3396 | register_gdbarch_swap (&builtin_type_unsigned_long, sizeof (struct type *), NULL); | |
3397 | register_gdbarch_swap (&builtin_type_unsigned_long_long, sizeof (struct type *), NULL); | |
3398 | register_gdbarch_swap (&builtin_type_float, sizeof (struct type *), NULL); | |
3399 | register_gdbarch_swap (&builtin_type_double, sizeof (struct type *), NULL); | |
3400 | register_gdbarch_swap (&builtin_type_long_double, sizeof (struct type *), NULL); | |
3401 | register_gdbarch_swap (&builtin_type_complex, sizeof (struct type *), NULL); | |
3402 | register_gdbarch_swap (&builtin_type_double_complex, sizeof (struct type *), NULL); | |
3403 | register_gdbarch_swap (&builtin_type_string, sizeof (struct type *), NULL); | |
3404 | register_gdbarch_swap (&builtin_type_int8, sizeof (struct type *), NULL); | |
3405 | register_gdbarch_swap (&builtin_type_uint8, sizeof (struct type *), NULL); | |
3406 | register_gdbarch_swap (&builtin_type_int16, sizeof (struct type *), NULL); | |
3407 | register_gdbarch_swap (&builtin_type_uint16, sizeof (struct type *), NULL); | |
3408 | register_gdbarch_swap (&builtin_type_int32, sizeof (struct type *), NULL); | |
3409 | register_gdbarch_swap (&builtin_type_uint32, sizeof (struct type *), NULL); | |
3410 | register_gdbarch_swap (&builtin_type_int64, sizeof (struct type *), NULL); | |
3411 | register_gdbarch_swap (&builtin_type_uint64, sizeof (struct type *), NULL); | |
3412 | register_gdbarch_swap (&builtin_type_int128, sizeof (struct type *), NULL); | |
3413 | register_gdbarch_swap (&builtin_type_uint128, sizeof (struct type *), NULL); | |
3414 | register_gdbarch_swap (&builtin_type_v4sf, sizeof (struct type *), NULL); | |
3415 | register_gdbarch_swap (&builtin_type_v4si, sizeof (struct type *), NULL); | |
3416 | register_gdbarch_swap (&builtin_type_v16qi, sizeof (struct type *), NULL); | |
3417 | register_gdbarch_swap (&builtin_type_v8qi, sizeof (struct type *), NULL); | |
3418 | register_gdbarch_swap (&builtin_type_v8hi, sizeof (struct type *), NULL); | |
3419 | register_gdbarch_swap (&builtin_type_v4hi, sizeof (struct type *), NULL); | |
3420 | register_gdbarch_swap (&builtin_type_v2si, sizeof (struct type *), NULL); | |
3421 | register_gdbarch_swap (&builtin_type_v4_float, sizeof (struct type *), NULL); | |
3422 | register_gdbarch_swap (&builtin_type_v4_int32, sizeof (struct type *), NULL); | |
3423 | register_gdbarch_swap (&builtin_type_v8_int16, sizeof (struct type *), NULL); | |
3424 | register_gdbarch_swap (&builtin_type_v16_int8, sizeof (struct type *), NULL); | |
3425 | register_gdbarch_swap (&builtin_type_v2_float, sizeof (struct type *), NULL); | |
3426 | register_gdbarch_swap (&builtin_type_v2_int32, sizeof (struct type *), NULL); | |
3427 | register_gdbarch_swap (&builtin_type_v8_int8, sizeof (struct type *), NULL); | |
3428 | register_gdbarch_swap (&builtin_type_v4_int16, sizeof (struct type *), NULL); | |
3429 | register_gdbarch_swap (&builtin_type_vec128, sizeof (struct type *), NULL); | |
3430 | REGISTER_GDBARCH_SWAP (builtin_type_void_data_ptr); | |
3431 | REGISTER_GDBARCH_SWAP (builtin_type_void_func_ptr); | |
3432 | REGISTER_GDBARCH_SWAP (builtin_type_CORE_ADDR); | |
3433 | REGISTER_GDBARCH_SWAP (builtin_type_bfd_vma); | |
3434 | register_gdbarch_swap (NULL, 0, build_gdbtypes); | |
3435 | ||
3436 | /* Note: These types do not need to be swapped - they are target | |
3437 | neutral. */ | |
3438 | builtin_type_ieee_single_big = | |
3439 | init_type (TYPE_CODE_FLT, floatformat_ieee_single_big.totalsize / 8, | |
3440 | 0, "builtin_type_ieee_single_big", NULL); | |
3441 | TYPE_FLOATFORMAT (builtin_type_ieee_single_big) = &floatformat_ieee_single_big; | |
3442 | builtin_type_ieee_single_little = | |
3443 | init_type (TYPE_CODE_FLT, floatformat_ieee_single_little.totalsize / 8, | |
3444 | 0, "builtin_type_ieee_single_little", NULL); | |
3445 | TYPE_FLOATFORMAT (builtin_type_ieee_single_little) = &floatformat_ieee_single_little; | |
3446 | builtin_type_ieee_double_big = | |
3447 | init_type (TYPE_CODE_FLT, floatformat_ieee_double_big.totalsize / 8, | |
3448 | 0, "builtin_type_ieee_double_big", NULL); | |
3449 | TYPE_FLOATFORMAT (builtin_type_ieee_double_big) = &floatformat_ieee_double_big; | |
3450 | builtin_type_ieee_double_little = | |
3451 | init_type (TYPE_CODE_FLT, floatformat_ieee_double_little.totalsize / 8, | |
3452 | 0, "builtin_type_ieee_double_little", NULL); | |
3453 | TYPE_FLOATFORMAT (builtin_type_ieee_double_little) = &floatformat_ieee_double_little; | |
3454 | builtin_type_ieee_double_littlebyte_bigword = | |
3455 | init_type (TYPE_CODE_FLT, floatformat_ieee_double_littlebyte_bigword.totalsize / 8, | |
3456 | 0, "builtin_type_ieee_double_littlebyte_bigword", NULL); | |
3457 | TYPE_FLOATFORMAT (builtin_type_ieee_double_littlebyte_bigword) = &floatformat_ieee_double_littlebyte_bigword; | |
3458 | builtin_type_i387_ext = | |
3459 | init_type (TYPE_CODE_FLT, floatformat_i387_ext.totalsize / 8, | |
3460 | 0, "builtin_type_i387_ext", NULL); | |
3461 | TYPE_FLOATFORMAT (builtin_type_i387_ext) = &floatformat_i387_ext; | |
3462 | builtin_type_m68881_ext = | |
3463 | init_type (TYPE_CODE_FLT, floatformat_m68881_ext.totalsize / 8, | |
3464 | 0, "builtin_type_m68881_ext", NULL); | |
3465 | TYPE_FLOATFORMAT (builtin_type_m68881_ext) = &floatformat_m68881_ext; | |
3466 | builtin_type_i960_ext = | |
3467 | init_type (TYPE_CODE_FLT, floatformat_i960_ext.totalsize / 8, | |
3468 | 0, "builtin_type_i960_ext", NULL); | |
3469 | TYPE_FLOATFORMAT (builtin_type_i960_ext) = &floatformat_i960_ext; | |
3470 | builtin_type_m88110_ext = | |
3471 | init_type (TYPE_CODE_FLT, floatformat_m88110_ext.totalsize / 8, | |
3472 | 0, "builtin_type_m88110_ext", NULL); | |
3473 | TYPE_FLOATFORMAT (builtin_type_m88110_ext) = &floatformat_m88110_ext; | |
3474 | builtin_type_m88110_harris_ext = | |
3475 | init_type (TYPE_CODE_FLT, floatformat_m88110_harris_ext.totalsize / 8, | |
3476 | 0, "builtin_type_m88110_harris_ext", NULL); | |
3477 | TYPE_FLOATFORMAT (builtin_type_m88110_harris_ext) = &floatformat_m88110_harris_ext; | |
3478 | builtin_type_arm_ext_big = | |
3479 | init_type (TYPE_CODE_FLT, floatformat_arm_ext_big.totalsize / 8, | |
3480 | 0, "builtin_type_arm_ext_big", NULL); | |
3481 | TYPE_FLOATFORMAT (builtin_type_arm_ext_big) = &floatformat_arm_ext_big; | |
3482 | builtin_type_arm_ext_littlebyte_bigword = | |
3483 | init_type (TYPE_CODE_FLT, floatformat_arm_ext_littlebyte_bigword.totalsize / 8, | |
3484 | 0, "builtin_type_arm_ext_littlebyte_bigword", NULL); | |
3485 | TYPE_FLOATFORMAT (builtin_type_arm_ext_littlebyte_bigword) = &floatformat_arm_ext_littlebyte_bigword; | |
3486 | builtin_type_ia64_spill_big = | |
3487 | init_type (TYPE_CODE_FLT, floatformat_ia64_spill_big.totalsize / 8, | |
3488 | 0, "builtin_type_ia64_spill_big", NULL); | |
3489 | TYPE_FLOATFORMAT (builtin_type_ia64_spill_big) = &floatformat_ia64_spill_big; | |
3490 | builtin_type_ia64_spill_little = | |
3491 | init_type (TYPE_CODE_FLT, floatformat_ia64_spill_little.totalsize / 8, | |
3492 | 0, "builtin_type_ia64_spill_little", NULL); | |
3493 | TYPE_FLOATFORMAT (builtin_type_ia64_spill_little) = &floatformat_ia64_spill_little; | |
3494 | builtin_type_ia64_quad_big = | |
3495 | init_type (TYPE_CODE_FLT, floatformat_ia64_quad_big.totalsize / 8, | |
3496 | 0, "builtin_type_ia64_quad_big", NULL); | |
3497 | TYPE_FLOATFORMAT (builtin_type_ia64_quad_big) = &floatformat_ia64_quad_big; | |
3498 | builtin_type_ia64_quad_little = | |
3499 | init_type (TYPE_CODE_FLT, floatformat_ia64_quad_little.totalsize / 8, | |
3500 | 0, "builtin_type_ia64_quad_little", NULL); | |
3501 | TYPE_FLOATFORMAT (builtin_type_ia64_quad_little) = &floatformat_ia64_quad_little; | |
3502 | ||
3503 | add_show_from_set ( | |
3504 | add_set_cmd ("overload", no_class, var_zinteger, (char *) &overload_debug, | |
3505 | "Set debugging of C++ overloading.\n\ | |
3506 | When enabled, ranking of the functions\n\ | |
3507 | is displayed.", &setdebuglist), | |
3508 | &showdebuglist); | |
3509 | } |