Commit | Line | Data |
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c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
b6ba6518 KB |
2 | Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000 |
3 | Free Software Foundation, Inc. | |
c906108c SS |
4 | Contributed by Cygnus Support, using pieces from other GDB modules. |
5 | ||
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b JM |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
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" | |
c91ecb25 | 37 | #include "wrapper.h" |
015a42b4 | 38 | #include "cp-abi.h" |
a02fd225 | 39 | #include "gdb_assert.h" |
c906108c SS |
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; | |
9e0b60a8 | 46 | struct type *builtin_type_true_char; |
c906108c SS |
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; | |
8b982acf EZ |
71 | struct type *builtin_type_int128; |
72 | struct type *builtin_type_uint128; | |
c906108c | 73 | struct type *builtin_type_bool; |
917317f4 | 74 | struct type *builtin_type_v4sf; |
c2d11a7d JM |
75 | struct type *builtin_type_v4si; |
76 | struct type *builtin_type_v8qi; | |
77 | struct type *builtin_type_v4hi; | |
78 | struct type *builtin_type_v2si; | |
598f52df AC |
79 | struct type *builtin_type_ieee_single_big; |
80 | struct type *builtin_type_ieee_single_little; | |
81 | struct type *builtin_type_ieee_double_big; | |
82 | struct type *builtin_type_ieee_double_little; | |
83 | struct type *builtin_type_ieee_double_littlebyte_bigword; | |
84 | struct type *builtin_type_i387_ext; | |
85 | struct type *builtin_type_m68881_ext; | |
86 | struct type *builtin_type_i960_ext; | |
87 | struct type *builtin_type_m88110_ext; | |
88 | struct type *builtin_type_m88110_harris_ext; | |
89 | struct type *builtin_type_arm_ext_big; | |
90 | struct type *builtin_type_arm_ext_littlebyte_bigword; | |
91 | struct type *builtin_type_ia64_spill_big; | |
92 | struct type *builtin_type_ia64_spill_little; | |
93 | struct type *builtin_type_ia64_quad_big; | |
94 | struct type *builtin_type_ia64_quad_little; | |
090a2205 | 95 | struct type *builtin_type_void_data_ptr; |
ee3a7b7f | 96 | struct type *builtin_type_void_func_ptr; |
c4093a6a JM |
97 | struct type *builtin_type_CORE_ADDR; |
98 | struct type *builtin_type_bfd_vma; | |
c906108c SS |
99 | |
100 | int opaque_type_resolution = 1; | |
5d161b24 | 101 | int overload_debug = 0; |
c906108c | 102 | |
c5aa993b JM |
103 | struct extra |
104 | { | |
105 | char str[128]; | |
106 | int len; | |
8c990f3c | 107 | }; /* maximum extension is 128! FIXME */ |
c906108c | 108 | |
a14ed312 KB |
109 | static void add_name (struct extra *, char *); |
110 | static void add_mangled_type (struct extra *, struct type *); | |
c906108c | 111 | #if 0 |
a14ed312 | 112 | static void cfront_mangle_name (struct type *, int, int); |
c906108c | 113 | #endif |
a14ed312 KB |
114 | static void print_bit_vector (B_TYPE *, int); |
115 | static void print_arg_types (struct type **, int); | |
116 | static void dump_fn_fieldlists (struct type *, int); | |
117 | static void print_cplus_stuff (struct type *, int); | |
118 | static void virtual_base_list_aux (struct type *dclass); | |
7a292a7a | 119 | |
c906108c SS |
120 | |
121 | /* Alloc a new type structure and fill it with some defaults. If | |
122 | OBJFILE is non-NULL, then allocate the space for the type structure | |
123 | in that objfile's type_obstack. */ | |
124 | ||
125 | struct type * | |
fba45db2 | 126 | alloc_type (struct objfile *objfile) |
c906108c SS |
127 | { |
128 | register struct type *type; | |
129 | ||
130 | /* Alloc the structure and start off with all fields zeroed. */ | |
131 | ||
132 | if (objfile == NULL) | |
133 | { | |
c5aa993b | 134 | type = (struct type *) xmalloc (sizeof (struct type)); |
c906108c SS |
135 | } |
136 | else | |
137 | { | |
c5aa993b JM |
138 | type = (struct type *) obstack_alloc (&objfile->type_obstack, |
139 | sizeof (struct type)); | |
c906108c SS |
140 | OBJSTAT (objfile, n_types++); |
141 | } | |
142 | memset ((char *) type, 0, sizeof (struct type)); | |
143 | ||
144 | /* Initialize the fields that might not be zero. */ | |
145 | ||
146 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
147 | TYPE_OBJFILE (type) = objfile; | |
148 | TYPE_VPTR_FIELDNO (type) = -1; | |
c5aa993b | 149 | TYPE_CV_TYPE (type) = type; /* chain back to itself */ |
47663de5 | 150 | TYPE_AS_TYPE (type) = type; /* ditto */ |
c906108c SS |
151 | |
152 | return (type); | |
153 | } | |
154 | ||
155 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points | |
156 | to a pointer to memory where the pointer type should be stored. | |
157 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
158 | We allocate new memory if needed. */ | |
159 | ||
160 | struct type * | |
fba45db2 | 161 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 162 | { |
c5aa993b | 163 | register struct type *ntype; /* New type */ |
c906108c SS |
164 | struct objfile *objfile; |
165 | ||
166 | ntype = TYPE_POINTER_TYPE (type); | |
167 | ||
c5aa993b | 168 | if (ntype) |
c906108c | 169 | { |
c5aa993b JM |
170 | if (typeptr == 0) |
171 | return ntype; /* Don't care about alloc, and have new type. */ | |
c906108c | 172 | else if (*typeptr == 0) |
c5aa993b | 173 | { |
c906108c SS |
174 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ |
175 | return ntype; | |
c5aa993b | 176 | } |
c906108c SS |
177 | } |
178 | ||
179 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
180 | { | |
181 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
182 | if (typeptr) | |
183 | *typeptr = ntype; | |
184 | } | |
c5aa993b JM |
185 | else |
186 | /* We have storage, but need to reset it. */ | |
c906108c SS |
187 | { |
188 | ntype = *typeptr; | |
189 | objfile = TYPE_OBJFILE (ntype); | |
190 | memset ((char *) ntype, 0, sizeof (struct type)); | |
191 | TYPE_OBJFILE (ntype) = objfile; | |
192 | } | |
193 | ||
194 | TYPE_TARGET_TYPE (ntype) = type; | |
195 | TYPE_POINTER_TYPE (type) = ntype; | |
196 | ||
197 | /* FIXME! Assume the machine has only one representation for pointers! */ | |
198 | ||
199 | TYPE_LENGTH (ntype) = TARGET_PTR_BIT / TARGET_CHAR_BIT; | |
200 | TYPE_CODE (ntype) = TYPE_CODE_PTR; | |
201 | ||
67b2adb2 AC |
202 | /* Mark pointers as unsigned. The target converts between pointers |
203 | and addresses (CORE_ADDRs) using POINTER_TO_ADDRESS() and | |
204 | ADDRESS_TO_POINTER(). */ | |
c906108c | 205 | TYPE_FLAGS (ntype) |= TYPE_FLAG_UNSIGNED; |
c5aa993b | 206 | |
c906108c SS |
207 | if (!TYPE_POINTER_TYPE (type)) /* Remember it, if don't have one. */ |
208 | TYPE_POINTER_TYPE (type) = ntype; | |
209 | ||
210 | return ntype; | |
211 | } | |
212 | ||
213 | /* Given a type TYPE, return a type of pointers to that type. | |
214 | May need to construct such a type if this is the first use. */ | |
215 | ||
216 | struct type * | |
fba45db2 | 217 | lookup_pointer_type (struct type *type) |
c906108c | 218 | { |
c5aa993b | 219 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
220 | } |
221 | ||
222 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, points | |
223 | to a pointer to memory where the reference type should be stored. | |
224 | If *TYPEPTR is zero, update it to point to the reference type we return. | |
225 | We allocate new memory if needed. */ | |
226 | ||
227 | struct type * | |
fba45db2 | 228 | make_reference_type (struct type *type, struct type **typeptr) |
c906108c | 229 | { |
c5aa993b | 230 | register struct type *ntype; /* New type */ |
c906108c SS |
231 | struct objfile *objfile; |
232 | ||
233 | ntype = TYPE_REFERENCE_TYPE (type); | |
234 | ||
c5aa993b | 235 | if (ntype) |
c906108c | 236 | { |
c5aa993b JM |
237 | if (typeptr == 0) |
238 | return ntype; /* Don't care about alloc, and have new type. */ | |
c906108c | 239 | else if (*typeptr == 0) |
c5aa993b | 240 | { |
c906108c SS |
241 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ |
242 | return ntype; | |
c5aa993b | 243 | } |
c906108c SS |
244 | } |
245 | ||
246 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
247 | { | |
248 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
249 | if (typeptr) | |
250 | *typeptr = ntype; | |
251 | } | |
c5aa993b JM |
252 | else |
253 | /* We have storage, but need to reset it. */ | |
c906108c SS |
254 | { |
255 | ntype = *typeptr; | |
256 | objfile = TYPE_OBJFILE (ntype); | |
257 | memset ((char *) ntype, 0, sizeof (struct type)); | |
258 | TYPE_OBJFILE (ntype) = objfile; | |
259 | } | |
260 | ||
261 | TYPE_TARGET_TYPE (ntype) = type; | |
262 | TYPE_REFERENCE_TYPE (type) = ntype; | |
263 | ||
264 | /* FIXME! Assume the machine has only one representation for references, | |
265 | and that it matches the (only) representation for pointers! */ | |
266 | ||
267 | TYPE_LENGTH (ntype) = TARGET_PTR_BIT / TARGET_CHAR_BIT; | |
268 | TYPE_CODE (ntype) = TYPE_CODE_REF; | |
c5aa993b | 269 | |
c906108c SS |
270 | if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */ |
271 | TYPE_REFERENCE_TYPE (type) = ntype; | |
272 | ||
273 | return ntype; | |
274 | } | |
275 | ||
276 | /* Same as above, but caller doesn't care about memory allocation details. */ | |
277 | ||
278 | struct type * | |
fba45db2 | 279 | lookup_reference_type (struct type *type) |
c906108c | 280 | { |
c5aa993b | 281 | return make_reference_type (type, (struct type **) 0); |
c906108c SS |
282 | } |
283 | ||
284 | /* Lookup a function type that returns type TYPE. TYPEPTR, if nonzero, points | |
285 | to a pointer to memory where the function type should be stored. | |
286 | If *TYPEPTR is zero, update it to point to the function type we return. | |
287 | We allocate new memory if needed. */ | |
288 | ||
289 | struct type * | |
fba45db2 | 290 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 291 | { |
c5aa993b | 292 | register struct type *ntype; /* New type */ |
c906108c SS |
293 | struct objfile *objfile; |
294 | ||
295 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
296 | { | |
297 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
298 | if (typeptr) | |
299 | *typeptr = ntype; | |
300 | } | |
c5aa993b JM |
301 | else |
302 | /* We have storage, but need to reset it. */ | |
c906108c SS |
303 | { |
304 | ntype = *typeptr; | |
305 | objfile = TYPE_OBJFILE (ntype); | |
306 | memset ((char *) ntype, 0, sizeof (struct type)); | |
307 | TYPE_OBJFILE (ntype) = objfile; | |
308 | } | |
309 | ||
310 | TYPE_TARGET_TYPE (ntype) = type; | |
311 | ||
312 | TYPE_LENGTH (ntype) = 1; | |
313 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
c5aa993b | 314 | |
c906108c SS |
315 | return ntype; |
316 | } | |
317 | ||
318 | ||
319 | /* Given a type TYPE, return a type of functions that return that type. | |
320 | May need to construct such a type if this is the first use. */ | |
321 | ||
322 | struct type * | |
fba45db2 | 323 | lookup_function_type (struct type *type) |
c906108c | 324 | { |
c5aa993b | 325 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
326 | } |
327 | ||
47663de5 MS |
328 | /* Identify address space identifier by name -- |
329 | return the integer flag defined in gdbtypes.h. */ | |
330 | extern int | |
331 | address_space_name_to_int (char *space_identifier) | |
332 | { | |
333 | /* Check for known address space delimiters. */ | |
334 | if (!strcmp (space_identifier, "code")) | |
335 | return TYPE_FLAG_CODE_SPACE; | |
336 | else if (!strcmp (space_identifier, "data")) | |
337 | return TYPE_FLAG_DATA_SPACE; | |
338 | else | |
339 | error ("Unknown address space specifier: \"%s\"", space_identifier); | |
340 | } | |
341 | ||
342 | /* Identify address space identifier by integer flag as defined in | |
343 | gdbtypes.h -- return the string version of the adress space name. */ | |
344 | ||
345 | extern char * | |
346 | address_space_int_to_name (int space_flag) | |
347 | { | |
348 | if (space_flag & TYPE_FLAG_CODE_SPACE) | |
349 | return "code"; | |
350 | else if (space_flag & TYPE_FLAG_DATA_SPACE) | |
351 | return "data"; | |
352 | else | |
353 | return NULL; | |
354 | } | |
355 | ||
356 | /* Make an address-space-delimited variant of a type -- a type that | |
357 | is identical to the one supplied except that it has an address | |
358 | space attribute attached to it (such as "code" or "data"). | |
359 | ||
360 | This is for Harvard architectures. */ | |
361 | ||
362 | struct type * | |
363 | make_type_with_address_space (struct type *type, int space_flag) | |
364 | { | |
365 | struct type *ntype; | |
366 | ||
367 | ntype = type; | |
368 | do { | |
369 | if ((ntype->flags & space_flag) != 0) | |
370 | return ntype; | |
371 | ntype = TYPE_AS_TYPE (ntype); | |
372 | } while (ntype != type); | |
373 | ||
374 | /* Create a new, duplicate type. */ | |
375 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
376 | /* Copy original type. */ | |
377 | memcpy ((char *) ntype, (char *) type, sizeof (struct type)); | |
378 | ||
379 | /* Pointers or references to the original type are not relevant to | |
380 | the new type; but if the original type is a pointer, the new type | |
381 | points to the same thing (so TYPE_TARGET_TYPE remains unchanged). */ | |
382 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; | |
383 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
384 | TYPE_CV_TYPE (ntype) = ntype; | |
385 | ||
386 | /* Chain the new address-space-specific type to the old type. */ | |
387 | ntype->as_type = type->as_type; | |
388 | type->as_type = ntype; | |
389 | ||
390 | /* Now set the address-space flag, and return the new type. */ | |
391 | ntype->flags |= space_flag; | |
392 | return ntype; | |
393 | } | |
394 | ||
c906108c SS |
395 | |
396 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
397 | one supplied except that it may have const or volatile attributes | |
398 | CNST is a flag for setting the const attribute | |
399 | VOLTL is a flag for setting the volatile attribute | |
400 | TYPE is the base type whose variant we are creating. | |
401 | TYPEPTR, if nonzero, points | |
402 | to a pointer to memory where the reference type should be stored. | |
403 | If *TYPEPTR is zero, update it to point to the reference type we return. | |
404 | We allocate new memory if needed. */ | |
405 | ||
406 | struct type * | |
fba45db2 | 407 | make_cv_type (int cnst, int voltl, struct type *type, struct type **typeptr) |
c906108c | 408 | { |
c5aa993b JM |
409 | register struct type *ntype; /* New type */ |
410 | register struct type *tmp_type = type; /* tmp type */ | |
c906108c SS |
411 | struct objfile *objfile; |
412 | ||
413 | ntype = TYPE_CV_TYPE (type); | |
414 | ||
415 | while (ntype != type) | |
416 | { | |
417 | if ((TYPE_CONST (ntype) == cnst) && | |
c5aa993b JM |
418 | (TYPE_VOLATILE (ntype) == voltl)) |
419 | { | |
420 | if (typeptr == 0) | |
421 | return ntype; | |
422 | else if (*typeptr == 0) | |
423 | { | |
424 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ | |
425 | return ntype; | |
426 | } | |
427 | } | |
c906108c SS |
428 | tmp_type = ntype; |
429 | ntype = TYPE_CV_TYPE (ntype); | |
430 | } | |
431 | ||
432 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
433 | { | |
434 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
435 | if (typeptr) | |
436 | *typeptr = ntype; | |
437 | } | |
c5aa993b JM |
438 | else |
439 | /* We have storage, but need to reset it. */ | |
c906108c SS |
440 | { |
441 | ntype = *typeptr; | |
442 | objfile = TYPE_OBJFILE (ntype); | |
443 | /* memset ((char *) ntype, 0, sizeof (struct type)); */ | |
444 | TYPE_OBJFILE (ntype) = objfile; | |
445 | } | |
446 | ||
c5aa993b | 447 | /* Copy original type */ |
c906108c SS |
448 | memcpy ((char *) ntype, (char *) type, sizeof (struct type)); |
449 | /* But zero out fields that shouldn't be copied */ | |
c5aa993b JM |
450 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; /* Need new pointer kind */ |
451 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; /* Need new referene kind */ | |
47663de5 | 452 | TYPE_AS_TYPE (ntype) = ntype; /* Need new address-space kind. */ |
c906108c SS |
453 | /* Note: TYPE_TARGET_TYPE can be left as is */ |
454 | ||
455 | /* Set flags appropriately */ | |
456 | if (cnst) | |
c5aa993b | 457 | TYPE_FLAGS (ntype) |= TYPE_FLAG_CONST; |
c906108c | 458 | else |
c5aa993b | 459 | TYPE_FLAGS (ntype) &= ~TYPE_FLAG_CONST; |
c906108c SS |
460 | |
461 | if (voltl) | |
c5aa993b | 462 | TYPE_FLAGS (ntype) |= TYPE_FLAG_VOLATILE; |
c906108c | 463 | else |
c5aa993b | 464 | TYPE_FLAGS (ntype) &= ~TYPE_FLAG_VOLATILE; |
c906108c SS |
465 | |
466 | /* Fix the chain of cv variants */ | |
467 | TYPE_CV_TYPE (ntype) = type; | |
468 | TYPE_CV_TYPE (tmp_type) = ntype; | |
469 | ||
470 | return ntype; | |
471 | } | |
472 | ||
a02fd225 DJ |
473 | /* When reading in a class type, we may have created references to |
474 | cv-qualified versions of the type (in method arguments, for | |
475 | instance). Update everything on the cv ring from the primary | |
476 | type TYPE. | |
c906108c | 477 | |
a02fd225 DJ |
478 | The only reason we do not need to do the same thing for address |
479 | spaces is that type readers do not create address space qualified | |
480 | types. */ | |
481 | void | |
482 | finish_cv_type (struct type *type) | |
483 | { | |
484 | struct type *ntype, *cv_type, *ptr_type, *ref_type; | |
485 | int cv_flags; | |
486 | ||
487 | gdb_assert (!TYPE_CONST (type) && !TYPE_VOLATILE (type)); | |
488 | ||
489 | ntype = type; | |
490 | while ((ntype = TYPE_CV_TYPE (ntype)) != type) | |
491 | { | |
492 | /* Save cv_flags. */ | |
493 | cv_flags = TYPE_FLAGS (ntype) & (TYPE_FLAG_VOLATILE | TYPE_FLAG_CONST); | |
494 | ||
495 | /* If any reference or pointer types were created, save them too. */ | |
496 | ptr_type = TYPE_POINTER_TYPE (ntype); | |
497 | ref_type = TYPE_REFERENCE_TYPE (ntype); | |
498 | ||
499 | /* Don't disturb the CV chain. */ | |
500 | cv_type = TYPE_CV_TYPE (ntype); | |
501 | ||
502 | /* Verify that we haven't added any address-space qualified types, | |
503 | for the future. */ | |
504 | gdb_assert (ntype == TYPE_AS_TYPE (ntype)); | |
505 | ||
506 | /* Copy original type */ | |
507 | memcpy ((char *) ntype, (char *) type, sizeof (struct type)); | |
c906108c | 508 | |
a02fd225 DJ |
509 | /* Restore everything. */ |
510 | TYPE_POINTER_TYPE (ntype) = ptr_type; | |
511 | TYPE_REFERENCE_TYPE (ntype) = ref_type; | |
512 | TYPE_CV_TYPE (ntype) = cv_type; | |
513 | TYPE_FLAGS (ntype) = TYPE_FLAGS (ntype) | cv_flags; | |
514 | ||
515 | TYPE_AS_TYPE (ntype) = ntype; | |
516 | } | |
517 | } | |
c906108c SS |
518 | |
519 | /* Implement direct support for MEMBER_TYPE in GNU C++. | |
520 | May need to construct such a type if this is the first use. | |
521 | The TYPE is the type of the member. The DOMAIN is the type | |
522 | of the aggregate that the member belongs to. */ | |
523 | ||
524 | struct type * | |
fba45db2 | 525 | lookup_member_type (struct type *type, struct type *domain) |
c906108c SS |
526 | { |
527 | register struct type *mtype; | |
528 | ||
529 | mtype = alloc_type (TYPE_OBJFILE (type)); | |
530 | smash_to_member_type (mtype, domain, type); | |
531 | return (mtype); | |
532 | } | |
533 | ||
7b83ea04 | 534 | /* Allocate a stub method whose return type is TYPE. |
c906108c SS |
535 | This apparently happens for speed of symbol reading, since parsing |
536 | out the arguments to the method is cpu-intensive, the way we are doing | |
537 | it. So, we will fill in arguments later. | |
538 | This always returns a fresh type. */ | |
539 | ||
540 | struct type * | |
fba45db2 | 541 | allocate_stub_method (struct type *type) |
c906108c SS |
542 | { |
543 | struct type *mtype; | |
544 | ||
7e956337 FF |
545 | mtype = init_type (TYPE_CODE_METHOD, 1, TYPE_FLAG_STUB, NULL, |
546 | TYPE_OBJFILE (type)); | |
c906108c SS |
547 | TYPE_TARGET_TYPE (mtype) = type; |
548 | /* _DOMAIN_TYPE (mtype) = unknown yet */ | |
549 | /* _ARG_TYPES (mtype) = unknown yet */ | |
c906108c SS |
550 | return (mtype); |
551 | } | |
552 | ||
553 | /* Create a range type using either a blank type supplied in RESULT_TYPE, | |
554 | or creating a new type, inheriting the objfile from INDEX_TYPE. | |
555 | ||
556 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND to | |
557 | HIGH_BOUND, inclusive. | |
558 | ||
559 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
560 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
561 | ||
562 | struct type * | |
fba45db2 KB |
563 | create_range_type (struct type *result_type, struct type *index_type, |
564 | int low_bound, int high_bound) | |
c906108c SS |
565 | { |
566 | if (result_type == NULL) | |
567 | { | |
568 | result_type = alloc_type (TYPE_OBJFILE (index_type)); | |
569 | } | |
570 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; | |
571 | TYPE_TARGET_TYPE (result_type) = index_type; | |
74a9bb82 | 572 | if (TYPE_STUB (index_type)) |
c906108c SS |
573 | TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB; |
574 | else | |
575 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
576 | TYPE_NFIELDS (result_type) = 2; | |
577 | TYPE_FIELDS (result_type) = (struct field *) | |
578 | TYPE_ALLOC (result_type, 2 * sizeof (struct field)); | |
579 | memset (TYPE_FIELDS (result_type), 0, 2 * sizeof (struct field)); | |
580 | TYPE_FIELD_BITPOS (result_type, 0) = low_bound; | |
581 | TYPE_FIELD_BITPOS (result_type, 1) = high_bound; | |
c5aa993b JM |
582 | TYPE_FIELD_TYPE (result_type, 0) = builtin_type_int; /* FIXME */ |
583 | TYPE_FIELD_TYPE (result_type, 1) = builtin_type_int; /* FIXME */ | |
c906108c | 584 | |
c5aa993b | 585 | if (low_bound >= 0) |
c906108c SS |
586 | TYPE_FLAGS (result_type) |= TYPE_FLAG_UNSIGNED; |
587 | ||
588 | return (result_type); | |
589 | } | |
590 | ||
591 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type TYPE. | |
592 | Return 1 of type is a range type, 0 if it is discrete (and bounds | |
593 | will fit in LONGEST), or -1 otherwise. */ | |
594 | ||
595 | int | |
fba45db2 | 596 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c SS |
597 | { |
598 | CHECK_TYPEDEF (type); | |
599 | switch (TYPE_CODE (type)) | |
600 | { | |
601 | case TYPE_CODE_RANGE: | |
602 | *lowp = TYPE_LOW_BOUND (type); | |
603 | *highp = TYPE_HIGH_BOUND (type); | |
604 | return 1; | |
605 | case TYPE_CODE_ENUM: | |
606 | if (TYPE_NFIELDS (type) > 0) | |
607 | { | |
608 | /* The enums may not be sorted by value, so search all | |
609 | entries */ | |
610 | int i; | |
611 | ||
612 | *lowp = *highp = TYPE_FIELD_BITPOS (type, 0); | |
613 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
614 | { | |
615 | if (TYPE_FIELD_BITPOS (type, i) < *lowp) | |
616 | *lowp = TYPE_FIELD_BITPOS (type, i); | |
617 | if (TYPE_FIELD_BITPOS (type, i) > *highp) | |
618 | *highp = TYPE_FIELD_BITPOS (type, i); | |
619 | } | |
620 | ||
621 | /* Set unsigned indicator if warranted. */ | |
c5aa993b | 622 | if (*lowp >= 0) |
c906108c SS |
623 | { |
624 | TYPE_FLAGS (type) |= TYPE_FLAG_UNSIGNED; | |
625 | } | |
626 | } | |
627 | else | |
628 | { | |
629 | *lowp = 0; | |
630 | *highp = -1; | |
631 | } | |
632 | return 0; | |
633 | case TYPE_CODE_BOOL: | |
634 | *lowp = 0; | |
635 | *highp = 1; | |
636 | return 0; | |
637 | case TYPE_CODE_INT: | |
c5aa993b | 638 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
639 | return -1; |
640 | if (!TYPE_UNSIGNED (type)) | |
641 | { | |
c5aa993b | 642 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
643 | *highp = -*lowp - 1; |
644 | return 0; | |
645 | } | |
646 | /* ... fall through for unsigned ints ... */ | |
647 | case TYPE_CODE_CHAR: | |
648 | *lowp = 0; | |
649 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 AC |
650 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
651 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ | |
c906108c SS |
652 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
653 | *highp = (*highp - 1) | *highp; | |
654 | return 0; | |
655 | default: | |
656 | return -1; | |
657 | } | |
658 | } | |
659 | ||
660 | /* Create an array type using either a blank type supplied in RESULT_TYPE, | |
661 | or creating a new type, inheriting the objfile from RANGE_TYPE. | |
662 | ||
663 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
664 | RANGE_TYPE. | |
665 | ||
666 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
667 | sure it is TYPE_CODE_UNDEF before we bash it into an array type? */ | |
668 | ||
669 | struct type * | |
fba45db2 KB |
670 | create_array_type (struct type *result_type, struct type *element_type, |
671 | struct type *range_type) | |
c906108c SS |
672 | { |
673 | LONGEST low_bound, high_bound; | |
674 | ||
675 | if (result_type == NULL) | |
676 | { | |
677 | result_type = alloc_type (TYPE_OBJFILE (range_type)); | |
678 | } | |
679 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; | |
680 | TYPE_TARGET_TYPE (result_type) = element_type; | |
681 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
682 | low_bound = high_bound = 0; | |
683 | CHECK_TYPEDEF (element_type); | |
684 | TYPE_LENGTH (result_type) = | |
685 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
686 | TYPE_NFIELDS (result_type) = 1; | |
687 | TYPE_FIELDS (result_type) = | |
688 | (struct field *) TYPE_ALLOC (result_type, sizeof (struct field)); | |
689 | memset (TYPE_FIELDS (result_type), 0, sizeof (struct field)); | |
690 | TYPE_FIELD_TYPE (result_type, 0) = range_type; | |
691 | TYPE_VPTR_FIELDNO (result_type) = -1; | |
692 | ||
693 | /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays */ | |
694 | if (TYPE_LENGTH (result_type) == 0) | |
695 | TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB; | |
696 | ||
697 | return (result_type); | |
698 | } | |
699 | ||
700 | /* Create a string type using either a blank type supplied in RESULT_TYPE, | |
701 | or creating a new type. String types are similar enough to array of | |
702 | char types that we can use create_array_type to build the basic type | |
703 | and then bash it into a string type. | |
704 | ||
705 | For fixed length strings, the range type contains 0 as the lower | |
706 | bound and the length of the string minus one as the upper bound. | |
707 | ||
708 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
709 | sure it is TYPE_CODE_UNDEF before we bash it into a string type? */ | |
710 | ||
711 | struct type * | |
fba45db2 | 712 | create_string_type (struct type *result_type, struct type *range_type) |
c906108c SS |
713 | { |
714 | result_type = create_array_type (result_type, | |
715 | *current_language->string_char_type, | |
716 | range_type); | |
717 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
718 | return (result_type); | |
719 | } | |
720 | ||
721 | struct type * | |
fba45db2 | 722 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c SS |
723 | { |
724 | LONGEST low_bound, high_bound, bit_length; | |
725 | if (result_type == NULL) | |
726 | { | |
727 | result_type = alloc_type (TYPE_OBJFILE (domain_type)); | |
728 | } | |
729 | TYPE_CODE (result_type) = TYPE_CODE_SET; | |
730 | TYPE_NFIELDS (result_type) = 1; | |
731 | TYPE_FIELDS (result_type) = (struct field *) | |
732 | TYPE_ALLOC (result_type, 1 * sizeof (struct field)); | |
733 | memset (TYPE_FIELDS (result_type), 0, sizeof (struct field)); | |
734 | ||
74a9bb82 | 735 | if (!TYPE_STUB (domain_type)) |
c906108c SS |
736 | { |
737 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) | |
738 | low_bound = high_bound = 0; | |
739 | bit_length = high_bound - low_bound + 1; | |
740 | TYPE_LENGTH (result_type) | |
741 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
742 | } | |
743 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
744 | ||
c5aa993b | 745 | if (low_bound >= 0) |
c906108c SS |
746 | TYPE_FLAGS (result_type) |= TYPE_FLAG_UNSIGNED; |
747 | ||
748 | return (result_type); | |
749 | } | |
750 | ||
917317f4 JM |
751 | |
752 | /* Construct and return a type of the form: | |
753 | struct NAME { ELT_TYPE ELT_NAME[N]; } | |
754 | We use these types for SIMD registers. For example, the type of | |
755 | the SSE registers on the late x86-family processors is: | |
756 | struct __builtin_v4sf { float f[4]; } | |
757 | built by the function call: | |
758 | init_simd_type ("__builtin_v4sf", builtin_type_float, "f", 4) | |
759 | The type returned is a permanent type, allocated using malloc; it | |
760 | doesn't live in any objfile's obstack. */ | |
c2d11a7d | 761 | static struct type * |
917317f4 JM |
762 | init_simd_type (char *name, |
763 | struct type *elt_type, | |
764 | char *elt_name, | |
765 | int n) | |
766 | { | |
767 | struct type *t; | |
768 | struct field *f; | |
769 | ||
770 | /* Build the field structure. */ | |
771 | f = xmalloc (sizeof (*f)); | |
772 | memset (f, 0, sizeof (*f)); | |
773 | f->loc.bitpos = 0; | |
774 | f->type = create_array_type (0, elt_type, | |
5c44784c JM |
775 | create_range_type (0, builtin_type_int, |
776 | 0, n-1)); | |
917317f4 JM |
777 | f->name = elt_name; |
778 | ||
779 | /* Build a struct type with that field. */ | |
780 | t = init_type (TYPE_CODE_STRUCT, n * TYPE_LENGTH (elt_type), 0, 0, 0); | |
781 | t->nfields = 1; | |
782 | t->fields = f; | |
783 | t->tag_name = name; | |
784 | ||
785 | return t; | |
786 | } | |
787 | ||
788 | ||
7b83ea04 | 789 | /* Smash TYPE to be a type of members of DOMAIN with type TO_TYPE. |
c906108c SS |
790 | A MEMBER is a wierd thing -- it amounts to a typed offset into |
791 | a struct, e.g. "an int at offset 8". A MEMBER TYPE doesn't | |
792 | include the offset (that's the value of the MEMBER itself), but does | |
793 | include the structure type into which it points (for some reason). | |
794 | ||
795 | When "smashing" the type, we preserve the objfile that the | |
796 | old type pointed to, since we aren't changing where the type is actually | |
797 | allocated. */ | |
798 | ||
799 | void | |
fba45db2 KB |
800 | smash_to_member_type (struct type *type, struct type *domain, |
801 | struct type *to_type) | |
c906108c SS |
802 | { |
803 | struct objfile *objfile; | |
804 | ||
805 | objfile = TYPE_OBJFILE (type); | |
806 | ||
807 | memset ((char *) type, 0, sizeof (struct type)); | |
808 | TYPE_OBJFILE (type) = objfile; | |
809 | TYPE_TARGET_TYPE (type) = to_type; | |
810 | TYPE_DOMAIN_TYPE (type) = domain; | |
811 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ | |
812 | TYPE_CODE (type) = TYPE_CODE_MEMBER; | |
813 | } | |
814 | ||
815 | /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE. | |
816 | METHOD just means `function that gets an extra "this" argument'. | |
817 | ||
818 | When "smashing" the type, we preserve the objfile that the | |
819 | old type pointed to, since we aren't changing where the type is actually | |
820 | allocated. */ | |
821 | ||
822 | void | |
fba45db2 KB |
823 | smash_to_method_type (struct type *type, struct type *domain, |
824 | struct type *to_type, struct type **args) | |
c906108c SS |
825 | { |
826 | struct objfile *objfile; | |
827 | ||
828 | objfile = TYPE_OBJFILE (type); | |
829 | ||
830 | memset ((char *) type, 0, sizeof (struct type)); | |
831 | TYPE_OBJFILE (type) = objfile; | |
832 | TYPE_TARGET_TYPE (type) = to_type; | |
833 | TYPE_DOMAIN_TYPE (type) = domain; | |
834 | TYPE_ARG_TYPES (type) = args; | |
835 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ | |
836 | TYPE_CODE (type) = TYPE_CODE_METHOD; | |
837 | } | |
838 | ||
839 | /* Return a typename for a struct/union/enum type without "struct ", | |
840 | "union ", or "enum ". If the type has a NULL name, return NULL. */ | |
841 | ||
842 | char * | |
fba45db2 | 843 | type_name_no_tag (register const struct type *type) |
c906108c SS |
844 | { |
845 | if (TYPE_TAG_NAME (type) != NULL) | |
846 | return TYPE_TAG_NAME (type); | |
847 | ||
848 | /* Is there code which expects this to return the name if there is no | |
849 | tag name? My guess is that this is mainly used for C++ in cases where | |
850 | the two will always be the same. */ | |
851 | return TYPE_NAME (type); | |
852 | } | |
853 | ||
7b83ea04 | 854 | /* Lookup a primitive type named NAME. |
c5aa993b | 855 | Return zero if NAME is not a primitive type. */ |
c906108c SS |
856 | |
857 | struct type * | |
fba45db2 | 858 | lookup_primitive_typename (char *name) |
c906108c | 859 | { |
c5aa993b JM |
860 | struct type **const *p; |
861 | ||
862 | for (p = current_language->la_builtin_type_vector; *p != NULL; p++) | |
863 | { | |
864 | if (STREQ ((**p)->name, name)) | |
865 | { | |
866 | return (**p); | |
867 | } | |
868 | } | |
869 | return (NULL); | |
c906108c SS |
870 | } |
871 | ||
872 | /* Lookup a typedef or primitive type named NAME, | |
873 | visible in lexical block BLOCK. | |
874 | If NOERR is nonzero, return zero if NAME is not suitably defined. */ | |
875 | ||
876 | struct type * | |
fba45db2 | 877 | lookup_typename (char *name, struct block *block, int noerr) |
c906108c SS |
878 | { |
879 | register struct symbol *sym; | |
880 | register struct type *tmp; | |
881 | ||
882 | sym = lookup_symbol (name, block, VAR_NAMESPACE, 0, (struct symtab **) NULL); | |
883 | if (sym == NULL || SYMBOL_CLASS (sym) != LOC_TYPEDEF) | |
884 | { | |
885 | tmp = lookup_primitive_typename (name); | |
886 | if (tmp) | |
887 | { | |
888 | return (tmp); | |
889 | } | |
890 | else if (!tmp && noerr) | |
891 | { | |
892 | return (NULL); | |
893 | } | |
894 | else | |
895 | { | |
896 | error ("No type named %s.", name); | |
897 | } | |
898 | } | |
899 | return (SYMBOL_TYPE (sym)); | |
900 | } | |
901 | ||
902 | struct type * | |
fba45db2 | 903 | lookup_unsigned_typename (char *name) |
c906108c SS |
904 | { |
905 | char *uns = alloca (strlen (name) + 10); | |
906 | ||
907 | strcpy (uns, "unsigned "); | |
908 | strcpy (uns + 9, name); | |
909 | return (lookup_typename (uns, (struct block *) NULL, 0)); | |
910 | } | |
911 | ||
912 | struct type * | |
fba45db2 | 913 | lookup_signed_typename (char *name) |
c906108c SS |
914 | { |
915 | struct type *t; | |
916 | char *uns = alloca (strlen (name) + 8); | |
917 | ||
918 | strcpy (uns, "signed "); | |
919 | strcpy (uns + 7, name); | |
920 | t = lookup_typename (uns, (struct block *) NULL, 1); | |
921 | /* If we don't find "signed FOO" just try again with plain "FOO". */ | |
922 | if (t != NULL) | |
923 | return t; | |
924 | return lookup_typename (name, (struct block *) NULL, 0); | |
925 | } | |
926 | ||
927 | /* Lookup a structure type named "struct NAME", | |
928 | visible in lexical block BLOCK. */ | |
929 | ||
930 | struct type * | |
fba45db2 | 931 | lookup_struct (char *name, struct block *block) |
c906108c SS |
932 | { |
933 | register struct symbol *sym; | |
934 | ||
935 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, | |
936 | (struct symtab **) NULL); | |
937 | ||
938 | if (sym == NULL) | |
939 | { | |
940 | error ("No struct type named %s.", name); | |
941 | } | |
942 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
943 | { | |
944 | error ("This context has class, union or enum %s, not a struct.", name); | |
945 | } | |
946 | return (SYMBOL_TYPE (sym)); | |
947 | } | |
948 | ||
949 | /* Lookup a union type named "union NAME", | |
950 | visible in lexical block BLOCK. */ | |
951 | ||
952 | struct type * | |
fba45db2 | 953 | lookup_union (char *name, struct block *block) |
c906108c SS |
954 | { |
955 | register struct symbol *sym; | |
c5aa993b | 956 | struct type *t; |
c906108c SS |
957 | |
958 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, | |
959 | (struct symtab **) NULL); | |
960 | ||
961 | if (sym == NULL) | |
962 | error ("No union type named %s.", name); | |
963 | ||
c5aa993b | 964 | t = SYMBOL_TYPE (sym); |
c906108c SS |
965 | |
966 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
967 | return (t); | |
968 | ||
969 | /* C++ unions may come out with TYPE_CODE_CLASS, but we look at | |
970 | * a further "declared_type" field to discover it is really a union. | |
971 | */ | |
c5aa993b JM |
972 | if (HAVE_CPLUS_STRUCT (t)) |
973 | if (TYPE_DECLARED_TYPE (t) == DECLARED_TYPE_UNION) | |
c906108c SS |
974 | return (t); |
975 | ||
976 | /* If we get here, it's not a union */ | |
977 | error ("This context has class, struct or enum %s, not a union.", name); | |
978 | } | |
979 | ||
980 | ||
981 | /* Lookup an enum type named "enum NAME", | |
982 | visible in lexical block BLOCK. */ | |
983 | ||
984 | struct type * | |
fba45db2 | 985 | lookup_enum (char *name, struct block *block) |
c906108c SS |
986 | { |
987 | register struct symbol *sym; | |
988 | ||
c5aa993b | 989 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, |
c906108c SS |
990 | (struct symtab **) NULL); |
991 | if (sym == NULL) | |
992 | { | |
993 | error ("No enum type named %s.", name); | |
994 | } | |
995 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
996 | { | |
997 | error ("This context has class, struct or union %s, not an enum.", name); | |
998 | } | |
999 | return (SYMBOL_TYPE (sym)); | |
1000 | } | |
1001 | ||
1002 | /* Lookup a template type named "template NAME<TYPE>", | |
1003 | visible in lexical block BLOCK. */ | |
1004 | ||
1005 | struct type * | |
fba45db2 | 1006 | lookup_template_type (char *name, struct type *type, struct block *block) |
c906108c SS |
1007 | { |
1008 | struct symbol *sym; | |
c5aa993b | 1009 | char *nam = (char *) alloca (strlen (name) + strlen (type->name) + 4); |
c906108c SS |
1010 | strcpy (nam, name); |
1011 | strcat (nam, "<"); | |
1012 | strcat (nam, type->name); | |
c5aa993b | 1013 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1014 | |
c5aa993b | 1015 | sym = lookup_symbol (nam, block, VAR_NAMESPACE, 0, (struct symtab **) NULL); |
c906108c SS |
1016 | |
1017 | if (sym == NULL) | |
1018 | { | |
1019 | error ("No template type named %s.", name); | |
1020 | } | |
1021 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1022 | { | |
1023 | error ("This context has class, union or enum %s, not a struct.", name); | |
1024 | } | |
1025 | return (SYMBOL_TYPE (sym)); | |
1026 | } | |
1027 | ||
7b83ea04 | 1028 | /* Given a type TYPE, lookup the type of the component of type named NAME. |
c906108c SS |
1029 | |
1030 | TYPE can be either a struct or union, or a pointer or reference to a struct or | |
1031 | union. If it is a pointer or reference, its target type is automatically used. | |
1032 | Thus '.' and '->' are interchangable, as specified for the definitions of the | |
1033 | expression element types STRUCTOP_STRUCT and STRUCTOP_PTR. | |
1034 | ||
1035 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
1036 | If NAME is the name of a baseclass type, return that type. */ | |
1037 | ||
1038 | struct type * | |
fba45db2 | 1039 | lookup_struct_elt_type (struct type *type, char *name, int noerr) |
c906108c SS |
1040 | { |
1041 | int i; | |
1042 | ||
1043 | for (;;) | |
1044 | { | |
1045 | CHECK_TYPEDEF (type); | |
1046 | if (TYPE_CODE (type) != TYPE_CODE_PTR | |
1047 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1048 | break; | |
1049 | type = TYPE_TARGET_TYPE (type); | |
1050 | } | |
1051 | ||
1052 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT && | |
1053 | TYPE_CODE (type) != TYPE_CODE_UNION) | |
1054 | { | |
1055 | target_terminal_ours (); | |
1056 | gdb_flush (gdb_stdout); | |
1057 | fprintf_unfiltered (gdb_stderr, "Type "); | |
1058 | type_print (type, "", gdb_stderr, -1); | |
1059 | error (" is not a structure or union type."); | |
1060 | } | |
1061 | ||
1062 | #if 0 | |
1063 | /* FIXME: This change put in by Michael seems incorrect for the case where | |
1064 | the structure tag name is the same as the member name. I.E. when doing | |
1065 | "ptype bell->bar" for "struct foo { int bar; int foo; } bell;" | |
1066 | Disabled by fnf. */ | |
1067 | { | |
1068 | char *typename; | |
1069 | ||
1070 | typename = type_name_no_tag (type); | |
1071 | if (typename != NULL && STREQ (typename, name)) | |
1072 | return type; | |
1073 | } | |
1074 | #endif | |
1075 | ||
1076 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1077 | { | |
1078 | char *t_field_name = TYPE_FIELD_NAME (type, i); | |
1079 | ||
db577aea | 1080 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c SS |
1081 | { |
1082 | return TYPE_FIELD_TYPE (type, i); | |
1083 | } | |
1084 | } | |
1085 | ||
1086 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1087 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1088 | { | |
1089 | struct type *t; | |
1090 | ||
1091 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, noerr); | |
1092 | if (t != NULL) | |
1093 | { | |
1094 | return t; | |
1095 | } | |
1096 | } | |
1097 | ||
1098 | if (noerr) | |
1099 | { | |
1100 | return NULL; | |
1101 | } | |
c5aa993b | 1102 | |
c906108c SS |
1103 | target_terminal_ours (); |
1104 | gdb_flush (gdb_stdout); | |
1105 | fprintf_unfiltered (gdb_stderr, "Type "); | |
1106 | type_print (type, "", gdb_stderr, -1); | |
1107 | fprintf_unfiltered (gdb_stderr, " has no component named "); | |
1108 | fputs_filtered (name, gdb_stderr); | |
1109 | error ("."); | |
c5aa993b | 1110 | return (struct type *) -1; /* For lint */ |
c906108c SS |
1111 | } |
1112 | ||
1113 | /* If possible, make the vptr_fieldno and vptr_basetype fields of TYPE | |
1114 | valid. Callers should be aware that in some cases (for example, | |
1115 | the type or one of its baseclasses is a stub type and we are | |
1116 | debugging a .o file), this function will not be able to find the virtual | |
1117 | function table pointer, and vptr_fieldno will remain -1 and vptr_basetype | |
1118 | will remain NULL. */ | |
1119 | ||
1120 | void | |
fba45db2 | 1121 | fill_in_vptr_fieldno (struct type *type) |
c906108c SS |
1122 | { |
1123 | CHECK_TYPEDEF (type); | |
1124 | ||
1125 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1126 | { | |
1127 | int i; | |
1128 | ||
1129 | /* We must start at zero in case the first (and only) baseclass is | |
7b83ea04 | 1130 | virtual (and hence we cannot share the table pointer). */ |
c906108c SS |
1131 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1132 | { | |
1133 | fill_in_vptr_fieldno (TYPE_BASECLASS (type, i)); | |
1134 | if (TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type, i)) >= 0) | |
1135 | { | |
1136 | TYPE_VPTR_FIELDNO (type) | |
1137 | = TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type, i)); | |
1138 | TYPE_VPTR_BASETYPE (type) | |
1139 | = TYPE_VPTR_BASETYPE (TYPE_BASECLASS (type, i)); | |
1140 | break; | |
1141 | } | |
1142 | } | |
1143 | } | |
1144 | } | |
1145 | ||
1146 | /* Find the method and field indices for the destructor in class type T. | |
1147 | Return 1 if the destructor was found, otherwise, return 0. */ | |
1148 | ||
1149 | int | |
fba45db2 | 1150 | get_destructor_fn_field (struct type *t, int *method_indexp, int *field_indexp) |
c906108c SS |
1151 | { |
1152 | int i; | |
1153 | ||
1154 | for (i = 0; i < TYPE_NFN_FIELDS (t); i++) | |
1155 | { | |
1156 | int j; | |
1157 | struct fn_field *f = TYPE_FN_FIELDLIST1 (t, i); | |
1158 | ||
1159 | for (j = 0; j < TYPE_FN_FIELDLIST_LENGTH (t, i); j++) | |
1160 | { | |
015a42b4 | 1161 | if (is_destructor_name (TYPE_FN_FIELD_PHYSNAME (f, j)) != 0) |
c906108c SS |
1162 | { |
1163 | *method_indexp = i; | |
1164 | *field_indexp = j; | |
1165 | return 1; | |
1166 | } | |
1167 | } | |
1168 | } | |
1169 | return 0; | |
1170 | } | |
1171 | ||
1172 | /* Added by Bryan Boreham, Kewill, Sun Sep 17 18:07:17 1989. | |
1173 | ||
1174 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
1175 | we can find a full definition in some other file. If so, copy this | |
1176 | definition, so we can use it in future. There used to be a comment (but | |
1177 | not any code) that if we don't find a full definition, we'd set a flag | |
1178 | so we don't spend time in the future checking the same type. That would | |
1179 | be a mistake, though--we might load in more symbols which contain a | |
1180 | full definition for the type. | |
1181 | ||
7b83ea04 | 1182 | This used to be coded as a macro, but I don't think it is called |
c906108c SS |
1183 | often enough to merit such treatment. */ |
1184 | ||
1185 | struct complaint stub_noname_complaint = | |
c5aa993b | 1186 | {"stub type has NULL name", 0, 0}; |
c906108c SS |
1187 | |
1188 | struct type * | |
a02fd225 | 1189 | check_typedef (struct type *type) |
c906108c SS |
1190 | { |
1191 | struct type *orig_type = type; | |
a02fd225 DJ |
1192 | int is_const, is_volatile; |
1193 | ||
c906108c SS |
1194 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
1195 | { | |
1196 | if (!TYPE_TARGET_TYPE (type)) | |
1197 | { | |
c5aa993b | 1198 | char *name; |
c906108c SS |
1199 | struct symbol *sym; |
1200 | ||
1201 | /* It is dangerous to call lookup_symbol if we are currently | |
1202 | reading a symtab. Infinite recursion is one danger. */ | |
1203 | if (currently_reading_symtab) | |
1204 | return type; | |
1205 | ||
1206 | name = type_name_no_tag (type); | |
1207 | /* FIXME: shouldn't we separately check the TYPE_NAME and the | |
1208 | TYPE_TAG_NAME, and look in STRUCT_NAMESPACE and/or VAR_NAMESPACE | |
1209 | as appropriate? (this code was written before TYPE_NAME and | |
1210 | TYPE_TAG_NAME were separate). */ | |
1211 | if (name == NULL) | |
1212 | { | |
1213 | complain (&stub_noname_complaint); | |
1214 | return type; | |
1215 | } | |
c5aa993b | 1216 | sym = lookup_symbol (name, 0, STRUCT_NAMESPACE, 0, |
c906108c SS |
1217 | (struct symtab **) NULL); |
1218 | if (sym) | |
1219 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
1220 | else | |
c5aa993b | 1221 | TYPE_TARGET_TYPE (type) = alloc_type (NULL); /* TYPE_CODE_UNDEF */ |
c906108c SS |
1222 | } |
1223 | type = TYPE_TARGET_TYPE (type); | |
1224 | } | |
1225 | ||
a02fd225 DJ |
1226 | is_const = TYPE_CONST (type); |
1227 | is_volatile = TYPE_VOLATILE (type); | |
1228 | ||
c906108c SS |
1229 | /* If this is a struct/class/union with no fields, then check whether a |
1230 | full definition exists somewhere else. This is for systems where a | |
1231 | type definition with no fields is issued for such types, instead of | |
c5aa993b JM |
1232 | identifying them as stub types in the first place */ |
1233 | ||
c906108c SS |
1234 | if (TYPE_IS_OPAQUE (type) && opaque_type_resolution && !currently_reading_symtab) |
1235 | { | |
c5aa993b JM |
1236 | char *name = type_name_no_tag (type); |
1237 | struct type *newtype; | |
c906108c SS |
1238 | if (name == NULL) |
1239 | { | |
1240 | complain (&stub_noname_complaint); | |
1241 | return type; | |
1242 | } | |
1243 | newtype = lookup_transparent_type (name); | |
1244 | if (newtype) | |
a02fd225 | 1245 | make_cv_type (is_const, is_volatile, newtype, &type); |
c906108c SS |
1246 | } |
1247 | /* Otherwise, rely on the stub flag being set for opaque/stubbed types */ | |
74a9bb82 | 1248 | else if (TYPE_STUB (type) && !currently_reading_symtab) |
c906108c | 1249 | { |
c5aa993b | 1250 | char *name = type_name_no_tag (type); |
c906108c | 1251 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
7b83ea04 AC |
1252 | TYPE_TAG_NAME, and look in STRUCT_NAMESPACE and/or VAR_NAMESPACE |
1253 | as appropriate? (this code was written before TYPE_NAME and | |
1254 | TYPE_TAG_NAME were separate). */ | |
c906108c SS |
1255 | struct symbol *sym; |
1256 | if (name == NULL) | |
1257 | { | |
1258 | complain (&stub_noname_complaint); | |
1259 | return type; | |
1260 | } | |
1261 | sym = lookup_symbol (name, 0, STRUCT_NAMESPACE, 0, (struct symtab **) NULL); | |
1262 | if (sym) | |
a02fd225 | 1263 | make_cv_type (is_const, is_volatile, SYMBOL_TYPE (sym), &type); |
c906108c SS |
1264 | } |
1265 | ||
74a9bb82 | 1266 | if (TYPE_TARGET_STUB (type)) |
c906108c SS |
1267 | { |
1268 | struct type *range_type; | |
1269 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1270 | ||
74a9bb82 | 1271 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
c5aa993b JM |
1272 | { |
1273 | } | |
c906108c SS |
1274 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY |
1275 | && TYPE_NFIELDS (type) == 1 | |
1276 | && (TYPE_CODE (range_type = TYPE_FIELD_TYPE (type, 0)) | |
1277 | == TYPE_CODE_RANGE)) | |
1278 | { | |
1279 | /* Now recompute the length of the array type, based on its | |
1280 | number of elements and the target type's length. */ | |
1281 | TYPE_LENGTH (type) = | |
1282 | ((TYPE_FIELD_BITPOS (range_type, 1) | |
1283 | - TYPE_FIELD_BITPOS (range_type, 0) | |
1284 | + 1) | |
1285 | * TYPE_LENGTH (target_type)); | |
1286 | TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB; | |
1287 | } | |
1288 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) | |
1289 | { | |
1290 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
1291 | TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB; | |
1292 | } | |
1293 | } | |
1294 | /* Cache TYPE_LENGTH for future use. */ | |
1295 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); | |
1296 | return type; | |
1297 | } | |
1298 | ||
1299 | /* New code added to support parsing of Cfront stabs strings */ | |
c906108c SS |
1300 | #define INIT_EXTRA { pextras->len=0; pextras->str[0]='\0'; } |
1301 | #define ADD_EXTRA(c) { pextras->str[pextras->len++]=c; } | |
1302 | ||
c5aa993b | 1303 | static void |
fba45db2 | 1304 | add_name (struct extra *pextras, char *n) |
c906108c SS |
1305 | { |
1306 | int nlen; | |
1307 | ||
c5aa993b | 1308 | if ((nlen = (n ? strlen (n) : 0)) == 0) |
c906108c | 1309 | return; |
c5aa993b JM |
1310 | sprintf (pextras->str + pextras->len, "%d%s", nlen, n); |
1311 | pextras->len = strlen (pextras->str); | |
c906108c SS |
1312 | } |
1313 | ||
c5aa993b | 1314 | static void |
fba45db2 | 1315 | add_mangled_type (struct extra *pextras, struct type *t) |
c906108c SS |
1316 | { |
1317 | enum type_code tcode; | |
1318 | int tlen, tflags; | |
c5aa993b | 1319 | char *tname; |
c906108c | 1320 | |
c5aa993b JM |
1321 | tcode = TYPE_CODE (t); |
1322 | tlen = TYPE_LENGTH (t); | |
1323 | tflags = TYPE_FLAGS (t); | |
1324 | tname = TYPE_NAME (t); | |
c906108c SS |
1325 | /* args of "..." seem to get mangled as "e" */ |
1326 | ||
c5aa993b JM |
1327 | switch (tcode) |
1328 | { | |
1329 | case TYPE_CODE_INT: | |
1330 | if (tflags == 1) | |
1331 | ADD_EXTRA ('U'); | |
1332 | switch (tlen) | |
1333 | { | |
1334 | case 1: | |
1335 | ADD_EXTRA ('c'); | |
1336 | break; | |
1337 | case 2: | |
1338 | ADD_EXTRA ('s'); | |
1339 | break; | |
1340 | case 4: | |
1341 | { | |
1342 | char *pname; | |
1343 | if ((pname = strrchr (tname, 'l'), pname) && !strcmp (pname, "long")) | |
9846de1b JM |
1344 | { |
1345 | ADD_EXTRA ('l'); | |
1346 | } | |
1347 | else | |
1348 | { | |
1349 | ADD_EXTRA ('i'); | |
1350 | } | |
c5aa993b JM |
1351 | } |
1352 | break; | |
1353 | default: | |
1354 | { | |
1355 | ||
1356 | static struct complaint msg = | |
1357 | {"Bad int type code length x%x\n", 0, 0}; | |
1358 | ||
1359 | complain (&msg, tlen); | |
1360 | ||
1361 | } | |
1362 | } | |
1363 | break; | |
1364 | case TYPE_CODE_FLT: | |
1365 | switch (tlen) | |
1366 | { | |
1367 | case 4: | |
1368 | ADD_EXTRA ('f'); | |
1369 | break; | |
1370 | case 8: | |
1371 | ADD_EXTRA ('d'); | |
1372 | break; | |
1373 | case 16: | |
1374 | ADD_EXTRA ('r'); | |
1375 | break; | |
1376 | default: | |
1377 | { | |
1378 | static struct complaint msg = | |
1379 | {"Bad float type code length x%x\n", 0, 0}; | |
1380 | complain (&msg, tlen); | |
1381 | } | |
1382 | } | |
1383 | break; | |
1384 | case TYPE_CODE_REF: | |
1385 | ADD_EXTRA ('R'); | |
1386 | /* followed by what it's a ref to */ | |
1387 | break; | |
1388 | case TYPE_CODE_PTR: | |
1389 | ADD_EXTRA ('P'); | |
1390 | /* followed by what it's a ptr to */ | |
1391 | break; | |
1392 | case TYPE_CODE_TYPEDEF: | |
1393 | { | |
1394 | static struct complaint msg = | |
1395 | {"Typedefs in overloaded functions not yet supported\n", 0, 0}; | |
1396 | complain (&msg); | |
1397 | } | |
c906108c SS |
1398 | /* followed by type bytes & name */ |
1399 | break; | |
1400 | case TYPE_CODE_FUNC: | |
c5aa993b | 1401 | ADD_EXTRA ('F'); |
c906108c SS |
1402 | /* followed by func's arg '_' & ret types */ |
1403 | break; | |
1404 | case TYPE_CODE_VOID: | |
c5aa993b | 1405 | ADD_EXTRA ('v'); |
c906108c SS |
1406 | break; |
1407 | case TYPE_CODE_METHOD: | |
c5aa993b | 1408 | ADD_EXTRA ('M'); |
c906108c | 1409 | /* followed by name of class and func's arg '_' & ret types */ |
c5aa993b JM |
1410 | add_name (pextras, tname); |
1411 | ADD_EXTRA ('F'); /* then mangle function */ | |
c906108c | 1412 | break; |
c5aa993b JM |
1413 | case TYPE_CODE_STRUCT: /* C struct */ |
1414 | case TYPE_CODE_UNION: /* C union */ | |
1415 | case TYPE_CODE_ENUM: /* Enumeration type */ | |
c906108c | 1416 | /* followed by name of type */ |
c5aa993b | 1417 | add_name (pextras, tname); |
c906108c SS |
1418 | break; |
1419 | ||
c5aa993b JM |
1420 | /* errors possible types/not supported */ |
1421 | case TYPE_CODE_CHAR: | |
1422 | case TYPE_CODE_ARRAY: /* Array type */ | |
1423 | case TYPE_CODE_MEMBER: /* Member type */ | |
c906108c | 1424 | case TYPE_CODE_BOOL: |
c5aa993b | 1425 | case TYPE_CODE_COMPLEX: /* Complex float */ |
c906108c | 1426 | case TYPE_CODE_UNDEF: |
c5aa993b JM |
1427 | case TYPE_CODE_SET: /* Pascal sets */ |
1428 | case TYPE_CODE_RANGE: | |
c906108c SS |
1429 | case TYPE_CODE_STRING: |
1430 | case TYPE_CODE_BITSTRING: | |
1431 | case TYPE_CODE_ERROR: | |
c5aa993b | 1432 | default: |
c906108c | 1433 | { |
c5aa993b JM |
1434 | static struct complaint msg = |
1435 | {"Unknown type code x%x\n", 0, 0}; | |
1436 | complain (&msg, tcode); | |
c906108c SS |
1437 | } |
1438 | } | |
1439 | if (t->target_type) | |
c5aa993b | 1440 | add_mangled_type (pextras, t->target_type); |
c906108c SS |
1441 | } |
1442 | ||
1443 | #if 0 | |
1444 | void | |
fba45db2 | 1445 | cfront_mangle_name (struct type *type, int i, int j) |
c906108c | 1446 | { |
c5aa993b JM |
1447 | struct fn_field *f; |
1448 | char *mangled_name = gdb_mangle_name (type, i, j); | |
1449 | ||
1450 | f = TYPE_FN_FIELDLIST1 (type, i); /* moved from below */ | |
1451 | ||
7b83ea04 | 1452 | /* kludge to support cfront methods - gdb expects to find "F" for |
c5aa993b JM |
1453 | ARM_mangled names, so when we mangle, we have to add it here */ |
1454 | if (ARM_DEMANGLING) | |
1455 | { | |
1456 | int k; | |
1457 | char *arm_mangled_name; | |
1458 | struct fn_field *method = &f[j]; | |
1459 | char *field_name = TYPE_FN_FIELDLIST_NAME (type, i); | |
1460 | char *physname = TYPE_FN_FIELD_PHYSNAME (f, j); | |
1461 | char *newname = type_name_no_tag (type); | |
1462 | ||
1463 | struct type *ftype = TYPE_FN_FIELD_TYPE (f, j); | |
1464 | int nargs = TYPE_NFIELDS (ftype); /* number of args */ | |
1465 | struct extra extras, *pextras = &extras; | |
1466 | INIT_EXTRA | |
c906108c SS |
1467 | |
1468 | if (TYPE_FN_FIELD_STATIC_P (f, j)) /* j for sublist within this list */ | |
c5aa993b JM |
1469 | ADD_EXTRA ('S') |
1470 | ADD_EXTRA ('F') | |
c906108c | 1471 | /* add args here! */ |
c5aa993b JM |
1472 | if (nargs <= 1) /* no args besides this */ |
1473 | ADD_EXTRA ('v') | |
1474 | else | |
1475 | { | |
1476 | for (k = 1; k < nargs; k++) | |
1477 | { | |
1478 | struct type *t; | |
1479 | t = TYPE_FIELD_TYPE (ftype, k); | |
1480 | add_mangled_type (pextras, t); | |
1481 | } | |
1482 | } | |
1483 | ADD_EXTRA ('\0') | |
1484 | printf ("add_mangled_type: %s\n", extras.str); /* FIXME */ | |
3c37485b | 1485 | xasprintf (&arm_mangled_name, "%s%s", mangled_name, extras.str); |
b8c9b27d | 1486 | xfree (mangled_name); |
c5aa993b JM |
1487 | mangled_name = arm_mangled_name; |
1488 | } | |
c906108c | 1489 | } |
c5aa993b | 1490 | #endif /* 0 */ |
c906108c SS |
1491 | |
1492 | #undef ADD_EXTRA | |
1493 | /* End of new code added to support parsing of Cfront stabs strings */ | |
1494 | ||
c91ecb25 ND |
1495 | /* Parse a type expression in the string [P..P+LENGTH). If an error occurs, |
1496 | silently return builtin_type_void. */ | |
1497 | ||
1498 | struct type * | |
1499 | safe_parse_type (char *p, int length) | |
1500 | { | |
1501 | struct ui_file *saved_gdb_stderr; | |
1502 | struct type *type; | |
1503 | ||
1504 | /* Suppress error messages. */ | |
1505 | saved_gdb_stderr = gdb_stderr; | |
1506 | gdb_stderr = ui_file_new (); | |
1507 | ||
1508 | /* Call parse_and_eval_type() without fear of longjmp()s. */ | |
1509 | if (!gdb_parse_and_eval_type (p, length, &type)) | |
1510 | type = builtin_type_void; | |
1511 | ||
1512 | /* Stop suppressing error messages. */ | |
1513 | ui_file_delete (gdb_stderr); | |
1514 | gdb_stderr = saved_gdb_stderr; | |
1515 | ||
1516 | return type; | |
1517 | } | |
1518 | ||
c906108c SS |
1519 | /* Ugly hack to convert method stubs into method types. |
1520 | ||
1521 | He ain't kiddin'. This demangles the name of the method into a string | |
1522 | including argument types, parses out each argument type, generates | |
1523 | a string casting a zero to that type, evaluates the string, and stuffs | |
1524 | the resulting type into an argtype vector!!! Then it knows the type | |
1525 | of the whole function (including argument types for overloading), | |
1526 | which info used to be in the stab's but was removed to hack back | |
1527 | the space required for them. */ | |
1528 | ||
1529 | void | |
fba45db2 | 1530 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c SS |
1531 | { |
1532 | struct fn_field *f; | |
1533 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
1534 | char *demangled_name = cplus_demangle (mangled_name, | |
1535 | DMGL_PARAMS | DMGL_ANSI); | |
1536 | char *argtypetext, *p; | |
1537 | int depth = 0, argcount = 1; | |
1538 | struct type **argtypes; | |
1539 | struct type *mtype; | |
1540 | ||
1541 | /* Make sure we got back a function string that we can use. */ | |
1542 | if (demangled_name) | |
1543 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
1544 | else |
1545 | p = NULL; | |
c906108c SS |
1546 | |
1547 | if (demangled_name == NULL || p == NULL) | |
1548 | error ("Internal: Cannot demangle mangled name `%s'.", mangled_name); | |
1549 | ||
1550 | /* Now, read in the parameters that define this type. */ | |
1551 | p += 1; | |
1552 | argtypetext = p; | |
1553 | while (*p) | |
1554 | { | |
070ad9f0 | 1555 | if (*p == '(' || *p == '<') |
c906108c SS |
1556 | { |
1557 | depth += 1; | |
1558 | } | |
070ad9f0 | 1559 | else if (*p == ')' || *p == '>') |
c906108c SS |
1560 | { |
1561 | depth -= 1; | |
1562 | } | |
1563 | else if (*p == ',' && depth == 0) | |
1564 | { | |
1565 | argcount += 1; | |
1566 | } | |
1567 | ||
1568 | p += 1; | |
1569 | } | |
1570 | ||
1571 | /* We need two more slots: one for the THIS pointer, and one for the | |
1572 | NULL [...] or void [end of arglist]. */ | |
1573 | ||
1574 | argtypes = (struct type **) | |
1575 | TYPE_ALLOC (type, (argcount + 2) * sizeof (struct type *)); | |
1576 | p = argtypetext; | |
1577 | /* FIXME: This is wrong for static member functions. */ | |
1578 | argtypes[0] = lookup_pointer_type (type); | |
1579 | argcount = 1; | |
1580 | ||
c5aa993b | 1581 | if (*p != ')') /* () means no args, skip while */ |
c906108c SS |
1582 | { |
1583 | depth = 0; | |
1584 | while (*p) | |
1585 | { | |
1586 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
1587 | { | |
1588 | /* Avoid parsing of ellipsis, they will be handled below. */ | |
1589 | if (strncmp (argtypetext, "...", p - argtypetext) != 0) | |
1590 | { | |
1591 | argtypes[argcount] = | |
c91ecb25 | 1592 | safe_parse_type (argtypetext, p - argtypetext); |
c906108c SS |
1593 | argcount += 1; |
1594 | } | |
1595 | argtypetext = p + 1; | |
1596 | } | |
1597 | ||
070ad9f0 | 1598 | if (*p == '(' || *p == '<') |
c906108c SS |
1599 | { |
1600 | depth += 1; | |
1601 | } | |
070ad9f0 | 1602 | else if (*p == ')' || *p == '>') |
c906108c SS |
1603 | { |
1604 | depth -= 1; | |
1605 | } | |
1606 | ||
1607 | p += 1; | |
1608 | } | |
1609 | } | |
1610 | ||
c5aa993b | 1611 | if (p[-2] != '.') /* Not '...' */ |
c906108c SS |
1612 | { |
1613 | argtypes[argcount] = builtin_type_void; /* List terminator */ | |
1614 | } | |
1615 | else | |
1616 | { | |
c5aa993b | 1617 | argtypes[argcount] = NULL; /* Ellist terminator */ |
c906108c SS |
1618 | } |
1619 | ||
b8c9b27d | 1620 | xfree (demangled_name); |
c906108c | 1621 | |
c5aa993b | 1622 | f = TYPE_FN_FIELDLIST1 (type, method_id); |
c906108c SS |
1623 | |
1624 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; | |
1625 | ||
1626 | /* Now update the old "stub" type into a real type. */ | |
1627 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
1628 | TYPE_DOMAIN_TYPE (mtype) = type; | |
1629 | TYPE_ARG_TYPES (mtype) = argtypes; | |
1630 | TYPE_FLAGS (mtype) &= ~TYPE_FLAG_STUB; | |
1631 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; | |
1632 | } | |
1633 | ||
1634 | const struct cplus_struct_type cplus_struct_default; | |
1635 | ||
1636 | void | |
fba45db2 | 1637 | allocate_cplus_struct_type (struct type *type) |
c906108c SS |
1638 | { |
1639 | if (!HAVE_CPLUS_STRUCT (type)) | |
1640 | { | |
1641 | TYPE_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
1642 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
c5aa993b | 1643 | *(TYPE_CPLUS_SPECIFIC (type)) = cplus_struct_default; |
c906108c SS |
1644 | } |
1645 | } | |
1646 | ||
1647 | /* Helper function to initialize the standard scalar types. | |
1648 | ||
1649 | If NAME is non-NULL and OBJFILE is non-NULL, then we make a copy | |
1650 | of the string pointed to by name in the type_obstack for that objfile, | |
1651 | and initialize the type name to that copy. There are places (mipsread.c | |
1652 | in particular, where init_type is called with a NULL value for NAME). */ | |
1653 | ||
1654 | struct type * | |
fba45db2 KB |
1655 | init_type (enum type_code code, int length, int flags, char *name, |
1656 | struct objfile *objfile) | |
c906108c SS |
1657 | { |
1658 | register struct type *type; | |
1659 | ||
1660 | type = alloc_type (objfile); | |
1661 | TYPE_CODE (type) = code; | |
1662 | TYPE_LENGTH (type) = length; | |
1663 | TYPE_FLAGS (type) |= flags; | |
1664 | if ((name != NULL) && (objfile != NULL)) | |
1665 | { | |
1666 | TYPE_NAME (type) = | |
c5aa993b | 1667 | obsavestring (name, strlen (name), &objfile->type_obstack); |
c906108c SS |
1668 | } |
1669 | else | |
1670 | { | |
1671 | TYPE_NAME (type) = name; | |
1672 | } | |
1673 | ||
1674 | /* C++ fancies. */ | |
1675 | ||
1676 | if (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION) | |
1677 | { | |
1678 | INIT_CPLUS_SPECIFIC (type); | |
1679 | } | |
1680 | return (type); | |
1681 | } | |
1682 | ||
1683 | /* Look up a fundamental type for the specified objfile. | |
1684 | May need to construct such a type if this is the first use. | |
1685 | ||
1686 | Some object file formats (ELF, COFF, etc) do not define fundamental | |
1687 | types such as "int" or "double". Others (stabs for example), do | |
1688 | define fundamental types. | |
1689 | ||
1690 | For the formats which don't provide fundamental types, gdb can create | |
1691 | such types, using defaults reasonable for the current language and | |
1692 | the current target machine. | |
1693 | ||
1694 | NOTE: This routine is obsolescent. Each debugging format reader | |
1695 | should manage it's own fundamental types, either creating them from | |
1696 | suitable defaults or reading them from the debugging information, | |
1697 | whichever is appropriate. The DWARF reader has already been | |
1698 | fixed to do this. Once the other readers are fixed, this routine | |
1699 | will go away. Also note that fundamental types should be managed | |
1700 | on a compilation unit basis in a multi-language environment, not | |
1701 | on a linkage unit basis as is done here. */ | |
1702 | ||
1703 | ||
1704 | struct type * | |
fba45db2 | 1705 | lookup_fundamental_type (struct objfile *objfile, int typeid) |
c906108c SS |
1706 | { |
1707 | register struct type **typep; | |
1708 | register int nbytes; | |
1709 | ||
1710 | if (typeid < 0 || typeid >= FT_NUM_MEMBERS) | |
1711 | { | |
1712 | error ("internal error - invalid fundamental type id %d", typeid); | |
1713 | } | |
1714 | ||
1715 | /* If this is the first time we need a fundamental type for this objfile | |
1716 | then we need to initialize the vector of type pointers. */ | |
c5aa993b JM |
1717 | |
1718 | if (objfile->fundamental_types == NULL) | |
c906108c SS |
1719 | { |
1720 | nbytes = FT_NUM_MEMBERS * sizeof (struct type *); | |
c5aa993b JM |
1721 | objfile->fundamental_types = (struct type **) |
1722 | obstack_alloc (&objfile->type_obstack, nbytes); | |
1723 | memset ((char *) objfile->fundamental_types, 0, nbytes); | |
c906108c SS |
1724 | OBJSTAT (objfile, n_types += FT_NUM_MEMBERS); |
1725 | } | |
1726 | ||
1727 | /* Look for this particular type in the fundamental type vector. If one is | |
1728 | not found, create and install one appropriate for the current language. */ | |
1729 | ||
c5aa993b | 1730 | typep = objfile->fundamental_types + typeid; |
c906108c SS |
1731 | if (*typep == NULL) |
1732 | { | |
1733 | *typep = create_fundamental_type (objfile, typeid); | |
1734 | } | |
1735 | ||
1736 | return (*typep); | |
1737 | } | |
1738 | ||
1739 | int | |
fba45db2 | 1740 | can_dereference (struct type *t) |
c906108c SS |
1741 | { |
1742 | /* FIXME: Should we return true for references as well as pointers? */ | |
1743 | CHECK_TYPEDEF (t); | |
1744 | return | |
1745 | (t != NULL | |
1746 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
1747 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
1748 | } | |
1749 | ||
adf40b2e | 1750 | int |
fba45db2 | 1751 | is_integral_type (struct type *t) |
adf40b2e JM |
1752 | { |
1753 | CHECK_TYPEDEF (t); | |
1754 | return | |
1755 | ((t != NULL) | |
d4f3574e SS |
1756 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
1757 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
1758 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) | |
1759 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
1760 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
1761 | } |
1762 | ||
c906108c SS |
1763 | /* Chill varying string and arrays are represented as follows: |
1764 | ||
1765 | struct { int __var_length; ELEMENT_TYPE[MAX_SIZE] __var_data}; | |
1766 | ||
1767 | Return true if TYPE is such a Chill varying type. */ | |
1768 | ||
1769 | int | |
fba45db2 | 1770 | chill_varying_type (struct type *type) |
c906108c SS |
1771 | { |
1772 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT | |
1773 | || TYPE_NFIELDS (type) != 2 | |
1774 | || strcmp (TYPE_FIELD_NAME (type, 0), "__var_length") != 0) | |
1775 | return 0; | |
1776 | return 1; | |
1777 | } | |
1778 | ||
7b83ea04 | 1779 | /* Check whether BASE is an ancestor or base class or DCLASS |
c906108c SS |
1780 | Return 1 if so, and 0 if not. |
1781 | Note: callers may want to check for identity of the types before | |
1782 | calling this function -- identical types are considered to satisfy | |
1783 | the ancestor relationship even if they're identical */ | |
1784 | ||
1785 | int | |
fba45db2 | 1786 | is_ancestor (struct type *base, struct type *dclass) |
c906108c SS |
1787 | { |
1788 | int i; | |
c5aa993b | 1789 | |
c906108c SS |
1790 | CHECK_TYPEDEF (base); |
1791 | CHECK_TYPEDEF (dclass); | |
1792 | ||
1793 | if (base == dclass) | |
1794 | return 1; | |
6b1ba9a0 ND |
1795 | if (TYPE_NAME (base) && TYPE_NAME (dclass) && |
1796 | !strcmp (TYPE_NAME (base), TYPE_NAME (dclass))) | |
1797 | return 1; | |
c906108c SS |
1798 | |
1799 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1800 | if (is_ancestor (base, TYPE_BASECLASS (dclass, i))) | |
1801 | return 1; | |
1802 | ||
1803 | return 0; | |
1804 | } | |
1805 | ||
1806 | ||
1807 | ||
1808 | /* See whether DCLASS has a virtual table. This routine is aimed at | |
1809 | the HP/Taligent ANSI C++ runtime model, and may not work with other | |
1810 | runtime models. Return 1 => Yes, 0 => No. */ | |
1811 | ||
1812 | int | |
fba45db2 | 1813 | has_vtable (struct type *dclass) |
c906108c SS |
1814 | { |
1815 | /* In the HP ANSI C++ runtime model, a class has a vtable only if it | |
1816 | has virtual functions or virtual bases. */ | |
1817 | ||
1818 | register int i; | |
1819 | ||
c5aa993b | 1820 | if (TYPE_CODE (dclass) != TYPE_CODE_CLASS) |
c906108c | 1821 | return 0; |
c5aa993b | 1822 | |
c906108c | 1823 | /* First check for the presence of virtual bases */ |
c5aa993b JM |
1824 | if (TYPE_FIELD_VIRTUAL_BITS (dclass)) |
1825 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1826 | if (B_TST (TYPE_FIELD_VIRTUAL_BITS (dclass), i)) | |
1827 | return 1; | |
1828 | ||
c906108c | 1829 | /* Next check for virtual functions */ |
c5aa993b JM |
1830 | if (TYPE_FN_FIELDLISTS (dclass)) |
1831 | for (i = 0; i < TYPE_NFN_FIELDS (dclass); i++) | |
1832 | if (TYPE_FN_FIELD_VIRTUAL_P (TYPE_FN_FIELDLIST1 (dclass, i), 0)) | |
c906108c | 1833 | return 1; |
c5aa993b JM |
1834 | |
1835 | /* Recurse on non-virtual bases to see if any of them needs a vtable */ | |
1836 | if (TYPE_FIELD_VIRTUAL_BITS (dclass)) | |
1837 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1838 | if ((!B_TST (TYPE_FIELD_VIRTUAL_BITS (dclass), i)) && | |
1839 | (has_vtable (TYPE_FIELD_TYPE (dclass, i)))) | |
1840 | return 1; | |
1841 | ||
1842 | /* Well, maybe we don't need a virtual table */ | |
c906108c SS |
1843 | return 0; |
1844 | } | |
1845 | ||
1846 | /* Return a pointer to the "primary base class" of DCLASS. | |
c5aa993b | 1847 | |
c906108c SS |
1848 | A NULL return indicates that DCLASS has no primary base, or that it |
1849 | couldn't be found (insufficient information). | |
c5aa993b | 1850 | |
c906108c SS |
1851 | This routine is aimed at the HP/Taligent ANSI C++ runtime model, |
1852 | and may not work with other runtime models. */ | |
1853 | ||
1854 | struct type * | |
fba45db2 | 1855 | primary_base_class (struct type *dclass) |
c906108c SS |
1856 | { |
1857 | /* In HP ANSI C++'s runtime model, a "primary base class" of a class | |
1858 | is the first directly inherited, non-virtual base class that | |
1859 | requires a virtual table */ | |
1860 | ||
1861 | register int i; | |
1862 | ||
c5aa993b | 1863 | if (TYPE_CODE (dclass) != TYPE_CODE_CLASS) |
c906108c SS |
1864 | return NULL; |
1865 | ||
c5aa993b JM |
1866 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) |
1867 | if (!TYPE_FIELD_VIRTUAL (dclass, i) && | |
1868 | has_vtable (TYPE_FIELD_TYPE (dclass, i))) | |
1869 | return TYPE_FIELD_TYPE (dclass, i); | |
c906108c SS |
1870 | |
1871 | return NULL; | |
1872 | } | |
1873 | ||
1874 | /* Global manipulated by virtual_base_list[_aux]() */ | |
1875 | ||
c5aa993b | 1876 | static struct vbase *current_vbase_list = NULL; |
c906108c SS |
1877 | |
1878 | /* Return a pointer to a null-terminated list of struct vbase | |
1879 | items. The vbasetype pointer of each item in the list points to the | |
1880 | type information for a virtual base of the argument DCLASS. | |
c5aa993b | 1881 | |
7b83ea04 | 1882 | Helper function for virtual_base_list(). |
c906108c SS |
1883 | Note: the list goes backward, right-to-left. virtual_base_list() |
1884 | copies the items out in reverse order. */ | |
1885 | ||
7a292a7a | 1886 | static void |
fba45db2 | 1887 | virtual_base_list_aux (struct type *dclass) |
c906108c | 1888 | { |
c5aa993b | 1889 | struct vbase *tmp_vbase; |
c906108c SS |
1890 | register int i; |
1891 | ||
c5aa993b | 1892 | if (TYPE_CODE (dclass) != TYPE_CODE_CLASS) |
7a292a7a | 1893 | return; |
c906108c SS |
1894 | |
1895 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1896 | { | |
1897 | /* Recurse on this ancestor, first */ | |
c5aa993b | 1898 | virtual_base_list_aux (TYPE_FIELD_TYPE (dclass, i)); |
c906108c SS |
1899 | |
1900 | /* If this current base is itself virtual, add it to the list */ | |
c5aa993b JM |
1901 | if (BASETYPE_VIA_VIRTUAL (dclass, i)) |
1902 | { | |
1903 | struct type *basetype = TYPE_FIELD_TYPE (dclass, i); | |
1904 | ||
1905 | /* Check if base already recorded */ | |
1906 | tmp_vbase = current_vbase_list; | |
1907 | while (tmp_vbase) | |
1908 | { | |
1909 | if (tmp_vbase->vbasetype == basetype) | |
1910 | break; /* found it */ | |
1911 | tmp_vbase = tmp_vbase->next; | |
1912 | } | |
1913 | ||
1914 | if (!tmp_vbase) /* normal exit from loop */ | |
1915 | { | |
1916 | /* Allocate new item for this virtual base */ | |
1917 | tmp_vbase = (struct vbase *) xmalloc (sizeof (struct vbase)); | |
1918 | ||
1919 | /* Stick it on at the end of the list */ | |
1920 | tmp_vbase->vbasetype = basetype; | |
1921 | tmp_vbase->next = current_vbase_list; | |
1922 | current_vbase_list = tmp_vbase; | |
1923 | } | |
1924 | } /* if virtual */ | |
1925 | } /* for loop over bases */ | |
c906108c SS |
1926 | } |
1927 | ||
1928 | ||
1929 | /* Compute the list of virtual bases in the right order. Virtual | |
1930 | bases are laid out in the object's memory area in order of their | |
1931 | occurrence in a depth-first, left-to-right search through the | |
1932 | ancestors. | |
c5aa993b | 1933 | |
c906108c SS |
1934 | Argument DCLASS is the type whose virtual bases are required. |
1935 | Return value is the address of a null-terminated array of pointers | |
1936 | to struct type items. | |
c5aa993b | 1937 | |
c906108c SS |
1938 | This routine is aimed at the HP/Taligent ANSI C++ runtime model, |
1939 | and may not work with other runtime models. | |
c5aa993b | 1940 | |
c906108c SS |
1941 | This routine merely hands off the argument to virtual_base_list_aux() |
1942 | and then copies the result into an array to save space. */ | |
1943 | ||
1944 | struct type ** | |
fba45db2 | 1945 | virtual_base_list (struct type *dclass) |
c906108c | 1946 | { |
c5aa993b JM |
1947 | register struct vbase *tmp_vbase; |
1948 | register struct vbase *tmp_vbase_2; | |
c906108c SS |
1949 | register int i; |
1950 | int count; | |
c5aa993b | 1951 | struct type **vbase_array; |
c906108c SS |
1952 | |
1953 | current_vbase_list = NULL; | |
c5aa993b | 1954 | virtual_base_list_aux (dclass); |
c906108c | 1955 | |
c5aa993b | 1956 | for (i = 0, tmp_vbase = current_vbase_list; tmp_vbase != NULL; i++, tmp_vbase = tmp_vbase->next) |
c906108c SS |
1957 | /* no body */ ; |
1958 | ||
1959 | count = i; | |
1960 | ||
c5aa993b | 1961 | vbase_array = (struct type **) xmalloc ((count + 1) * sizeof (struct type *)); |
c906108c | 1962 | |
c5aa993b | 1963 | for (i = count - 1, tmp_vbase = current_vbase_list; i >= 0; i--, tmp_vbase = tmp_vbase->next) |
c906108c SS |
1964 | vbase_array[i] = tmp_vbase->vbasetype; |
1965 | ||
1966 | /* Get rid of constructed chain */ | |
1967 | tmp_vbase_2 = tmp_vbase = current_vbase_list; | |
1968 | while (tmp_vbase) | |
1969 | { | |
1970 | tmp_vbase = tmp_vbase->next; | |
b8c9b27d | 1971 | xfree (tmp_vbase_2); |
c906108c SS |
1972 | tmp_vbase_2 = tmp_vbase; |
1973 | } | |
c5aa993b | 1974 | |
c906108c SS |
1975 | vbase_array[count] = NULL; |
1976 | return vbase_array; | |
1977 | } | |
1978 | ||
1979 | /* Return the length of the virtual base list of the type DCLASS. */ | |
1980 | ||
1981 | int | |
fba45db2 | 1982 | virtual_base_list_length (struct type *dclass) |
c906108c SS |
1983 | { |
1984 | register int i; | |
c5aa993b JM |
1985 | register struct vbase *tmp_vbase; |
1986 | ||
c906108c | 1987 | current_vbase_list = NULL; |
c5aa993b | 1988 | virtual_base_list_aux (dclass); |
c906108c | 1989 | |
c5aa993b | 1990 | for (i = 0, tmp_vbase = current_vbase_list; tmp_vbase != NULL; i++, tmp_vbase = tmp_vbase->next) |
c906108c SS |
1991 | /* no body */ ; |
1992 | return i; | |
1993 | } | |
1994 | ||
1995 | /* Return the number of elements of the virtual base list of the type | |
1996 | DCLASS, ignoring those appearing in the primary base (and its | |
1997 | primary base, recursively). */ | |
1998 | ||
1999 | int | |
fba45db2 | 2000 | virtual_base_list_length_skip_primaries (struct type *dclass) |
c906108c SS |
2001 | { |
2002 | register int i; | |
c5aa993b JM |
2003 | register struct vbase *tmp_vbase; |
2004 | struct type *primary; | |
c906108c SS |
2005 | |
2006 | primary = TYPE_RUNTIME_PTR (dclass) ? TYPE_PRIMARY_BASE (dclass) : NULL; | |
2007 | ||
2008 | if (!primary) | |
2009 | return virtual_base_list_length (dclass); | |
2010 | ||
2011 | current_vbase_list = NULL; | |
c5aa993b | 2012 | virtual_base_list_aux (dclass); |
c906108c | 2013 | |
c5aa993b | 2014 | for (i = 0, tmp_vbase = current_vbase_list; tmp_vbase != NULL; tmp_vbase = tmp_vbase->next) |
c906108c SS |
2015 | { |
2016 | if (virtual_base_index (tmp_vbase->vbasetype, primary) >= 0) | |
c5aa993b | 2017 | continue; |
c906108c SS |
2018 | i++; |
2019 | } | |
2020 | return i; | |
2021 | } | |
2022 | ||
2023 | ||
2024 | /* Return the index (position) of type BASE, which is a virtual base | |
2025 | class of DCLASS, in the latter's virtual base list. A return of -1 | |
2026 | indicates "not found" or a problem. */ | |
2027 | ||
2028 | int | |
fba45db2 | 2029 | virtual_base_index (struct type *base, struct type *dclass) |
c906108c | 2030 | { |
c5aa993b | 2031 | register struct type *vbase; |
c906108c SS |
2032 | register int i; |
2033 | ||
c5aa993b JM |
2034 | if ((TYPE_CODE (dclass) != TYPE_CODE_CLASS) || |
2035 | (TYPE_CODE (base) != TYPE_CODE_CLASS)) | |
c906108c SS |
2036 | return -1; |
2037 | ||
2038 | i = 0; | |
015a42b4 | 2039 | vbase = virtual_base_list (dclass)[0]; |
c906108c SS |
2040 | while (vbase) |
2041 | { | |
2042 | if (vbase == base) | |
c5aa993b | 2043 | break; |
015a42b4 | 2044 | vbase = virtual_base_list (dclass)[++i]; |
c906108c SS |
2045 | } |
2046 | ||
2047 | return vbase ? i : -1; | |
2048 | } | |
2049 | ||
2050 | ||
2051 | ||
2052 | /* Return the index (position) of type BASE, which is a virtual base | |
2053 | class of DCLASS, in the latter's virtual base list. Skip over all | |
2054 | bases that may appear in the virtual base list of the primary base | |
2055 | class of DCLASS (recursively). A return of -1 indicates "not | |
2056 | found" or a problem. */ | |
2057 | ||
2058 | int | |
fba45db2 | 2059 | virtual_base_index_skip_primaries (struct type *base, struct type *dclass) |
c906108c | 2060 | { |
c5aa993b | 2061 | register struct type *vbase; |
c906108c | 2062 | register int i, j; |
c5aa993b | 2063 | struct type *primary; |
c906108c | 2064 | |
c5aa993b JM |
2065 | if ((TYPE_CODE (dclass) != TYPE_CODE_CLASS) || |
2066 | (TYPE_CODE (base) != TYPE_CODE_CLASS)) | |
c906108c SS |
2067 | return -1; |
2068 | ||
c5aa993b | 2069 | primary = TYPE_RUNTIME_PTR (dclass) ? TYPE_PRIMARY_BASE (dclass) : NULL; |
c906108c SS |
2070 | |
2071 | j = -1; | |
2072 | i = 0; | |
015a42b4 | 2073 | vbase = virtual_base_list (dclass)[0]; |
c906108c SS |
2074 | while (vbase) |
2075 | { | |
c5aa993b JM |
2076 | if (!primary || (virtual_base_index_skip_primaries (vbase, primary) < 0)) |
2077 | j++; | |
c906108c | 2078 | if (vbase == base) |
c5aa993b | 2079 | break; |
015a42b4 | 2080 | vbase = virtual_base_list (dclass)[++i]; |
c906108c SS |
2081 | } |
2082 | ||
2083 | return vbase ? j : -1; | |
2084 | } | |
2085 | ||
2086 | /* Return position of a derived class DCLASS in the list of | |
2087 | * primary bases starting with the remotest ancestor. | |
2088 | * Position returned is 0-based. */ | |
2089 | ||
2090 | int | |
fba45db2 | 2091 | class_index_in_primary_list (struct type *dclass) |
c906108c | 2092 | { |
c5aa993b | 2093 | struct type *pbc; /* primary base class */ |
c906108c | 2094 | |
c5aa993b | 2095 | /* Simply recurse on primary base */ |
c906108c SS |
2096 | pbc = TYPE_PRIMARY_BASE (dclass); |
2097 | if (pbc) | |
2098 | return 1 + class_index_in_primary_list (pbc); | |
2099 | else | |
2100 | return 0; | |
2101 | } | |
2102 | ||
2103 | /* Return a count of the number of virtual functions a type has. | |
2104 | * This includes all the virtual functions it inherits from its | |
2105 | * base classes too. | |
2106 | */ | |
2107 | ||
2108 | /* pai: FIXME This doesn't do the right thing: count redefined virtual | |
2109 | * functions only once (latest redefinition) | |
2110 | */ | |
2111 | ||
2112 | int | |
fba45db2 | 2113 | count_virtual_fns (struct type *dclass) |
c906108c | 2114 | { |
c5aa993b | 2115 | int fn, oi; /* function and overloaded instance indices */ |
c5aa993b JM |
2116 | int vfuncs; /* count to return */ |
2117 | ||
2118 | /* recurse on bases that can share virtual table */ | |
2119 | struct type *pbc = primary_base_class (dclass); | |
c906108c SS |
2120 | if (pbc) |
2121 | vfuncs = count_virtual_fns (pbc); | |
7f7e9482 AC |
2122 | else |
2123 | vfuncs = 0; | |
c5aa993b | 2124 | |
c906108c SS |
2125 | for (fn = 0; fn < TYPE_NFN_FIELDS (dclass); fn++) |
2126 | for (oi = 0; oi < TYPE_FN_FIELDLIST_LENGTH (dclass, fn); oi++) | |
2127 | if (TYPE_FN_FIELD_VIRTUAL_P (TYPE_FN_FIELDLIST1 (dclass, fn), oi)) | |
c5aa993b | 2128 | vfuncs++; |
c906108c SS |
2129 | |
2130 | return vfuncs; | |
2131 | } | |
c906108c SS |
2132 | \f |
2133 | ||
c5aa993b | 2134 | |
c906108c SS |
2135 | /* Functions for overload resolution begin here */ |
2136 | ||
2137 | /* Compare two badness vectors A and B and return the result. | |
2138 | * 0 => A and B are identical | |
2139 | * 1 => A and B are incomparable | |
2140 | * 2 => A is better than B | |
2141 | * 3 => A is worse than B */ | |
2142 | ||
2143 | int | |
fba45db2 | 2144 | compare_badness (struct badness_vector *a, struct badness_vector *b) |
c906108c SS |
2145 | { |
2146 | int i; | |
2147 | int tmp; | |
c5aa993b JM |
2148 | short found_pos = 0; /* any positives in c? */ |
2149 | short found_neg = 0; /* any negatives in c? */ | |
2150 | ||
2151 | /* differing lengths => incomparable */ | |
c906108c SS |
2152 | if (a->length != b->length) |
2153 | return 1; | |
2154 | ||
c5aa993b JM |
2155 | /* Subtract b from a */ |
2156 | for (i = 0; i < a->length; i++) | |
c906108c SS |
2157 | { |
2158 | tmp = a->rank[i] - b->rank[i]; | |
2159 | if (tmp > 0) | |
c5aa993b | 2160 | found_pos = 1; |
c906108c | 2161 | else if (tmp < 0) |
c5aa993b | 2162 | found_neg = 1; |
c906108c SS |
2163 | } |
2164 | ||
2165 | if (found_pos) | |
2166 | { | |
2167 | if (found_neg) | |
c5aa993b | 2168 | return 1; /* incomparable */ |
c906108c | 2169 | else |
c5aa993b | 2170 | return 3; /* A > B */ |
c906108c | 2171 | } |
c5aa993b JM |
2172 | else |
2173 | /* no positives */ | |
c906108c SS |
2174 | { |
2175 | if (found_neg) | |
c5aa993b | 2176 | return 2; /* A < B */ |
c906108c | 2177 | else |
c5aa993b | 2178 | return 0; /* A == B */ |
c906108c SS |
2179 | } |
2180 | } | |
2181 | ||
2182 | /* Rank a function by comparing its parameter types (PARMS, length NPARMS), | |
2183 | * to the types of an argument list (ARGS, length NARGS). | |
2184 | * Return a pointer to a badness vector. This has NARGS + 1 entries. */ | |
2185 | ||
2186 | struct badness_vector * | |
fba45db2 | 2187 | rank_function (struct type **parms, int nparms, struct type **args, int nargs) |
c906108c SS |
2188 | { |
2189 | int i; | |
c5aa993b | 2190 | struct badness_vector *bv; |
c906108c SS |
2191 | int min_len = nparms < nargs ? nparms : nargs; |
2192 | ||
2193 | bv = xmalloc (sizeof (struct badness_vector)); | |
c5aa993b | 2194 | bv->length = nargs + 1; /* add 1 for the length-match rank */ |
c906108c SS |
2195 | bv->rank = xmalloc ((nargs + 1) * sizeof (int)); |
2196 | ||
2197 | /* First compare the lengths of the supplied lists. | |
2198 | * If there is a mismatch, set it to a high value. */ | |
c5aa993b | 2199 | |
c906108c SS |
2200 | /* pai/1997-06-03 FIXME: when we have debug info about default |
2201 | * arguments and ellipsis parameter lists, we should consider those | |
2202 | * and rank the length-match more finely. */ | |
2203 | ||
2204 | LENGTH_MATCH (bv) = (nargs != nparms) ? LENGTH_MISMATCH_BADNESS : 0; | |
2205 | ||
2206 | /* Now rank all the parameters of the candidate function */ | |
74cc24b0 DB |
2207 | for (i = 1; i <= min_len; i++) |
2208 | bv->rank[i] = rank_one_type (parms[i-1], args[i-1]); | |
c906108c | 2209 | |
c5aa993b JM |
2210 | /* If more arguments than parameters, add dummy entries */ |
2211 | for (i = min_len + 1; i <= nargs; i++) | |
c906108c SS |
2212 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
2213 | ||
2214 | return bv; | |
2215 | } | |
2216 | ||
2217 | /* Compare one type (PARM) for compatibility with another (ARG). | |
2218 | * PARM is intended to be the parameter type of a function; and | |
2219 | * ARG is the supplied argument's type. This function tests if | |
2220 | * the latter can be converted to the former. | |
2221 | * | |
2222 | * Return 0 if they are identical types; | |
2223 | * Otherwise, return an integer which corresponds to how compatible | |
2224 | * PARM is to ARG. The higher the return value, the worse the match. | |
2225 | * Generally the "bad" conversions are all uniformly assigned a 100 */ | |
2226 | ||
2227 | int | |
fba45db2 | 2228 | rank_one_type (struct type *parm, struct type *arg) |
c906108c SS |
2229 | { |
2230 | /* Identical type pointers */ | |
2231 | /* However, this still doesn't catch all cases of same type for arg | |
2232 | * and param. The reason is that builtin types are different from | |
2233 | * the same ones constructed from the object. */ | |
2234 | if (parm == arg) | |
2235 | return 0; | |
2236 | ||
2237 | /* Resolve typedefs */ | |
2238 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
2239 | parm = check_typedef (parm); | |
2240 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
2241 | arg = check_typedef (arg); | |
2242 | ||
070ad9f0 DB |
2243 | /* |
2244 | Well, damnit, if the names are exactly the same, | |
2245 | i'll say they are exactly the same. This happens when we generate | |
2246 | method stubs. The types won't point to the same address, but they | |
2247 | really are the same. | |
2248 | */ | |
2249 | ||
6b1ba9a0 ND |
2250 | if (TYPE_NAME (parm) && TYPE_NAME (arg) && |
2251 | !strcmp (TYPE_NAME (parm), TYPE_NAME (arg))) | |
070ad9f0 DB |
2252 | return 0; |
2253 | ||
c906108c SS |
2254 | /* Check if identical after resolving typedefs */ |
2255 | if (parm == arg) | |
2256 | return 0; | |
2257 | ||
db577aea AC |
2258 | /* See through references, since we can almost make non-references |
2259 | references. */ | |
2260 | if (TYPE_CODE (arg) == TYPE_CODE_REF) | |
6b1ba9a0 | 2261 | return (rank_one_type (parm, TYPE_TARGET_TYPE (arg)) |
db577aea AC |
2262 | + REFERENCE_CONVERSION_BADNESS); |
2263 | if (TYPE_CODE (parm) == TYPE_CODE_REF) | |
6b1ba9a0 | 2264 | return (rank_one_type (TYPE_TARGET_TYPE (parm), arg) |
db577aea | 2265 | + REFERENCE_CONVERSION_BADNESS); |
5d161b24 | 2266 | if (overload_debug) |
db577aea | 2267 | /* Debugging only. */ |
5d161b24 DB |
2268 | fprintf_filtered (gdb_stderr,"------ Arg is %s [%d], parm is %s [%d]\n", |
2269 | TYPE_NAME (arg), TYPE_CODE (arg), TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c SS |
2270 | |
2271 | /* x -> y means arg of type x being supplied for parameter of type y */ | |
2272 | ||
2273 | switch (TYPE_CODE (parm)) | |
2274 | { | |
c5aa993b JM |
2275 | case TYPE_CODE_PTR: |
2276 | switch (TYPE_CODE (arg)) | |
2277 | { | |
2278 | case TYPE_CODE_PTR: | |
2279 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) | |
2280 | return VOID_PTR_CONVERSION_BADNESS; | |
2281 | else | |
2282 | return rank_one_type (TYPE_TARGET_TYPE (parm), TYPE_TARGET_TYPE (arg)); | |
2283 | case TYPE_CODE_ARRAY: | |
2284 | return rank_one_type (TYPE_TARGET_TYPE (parm), TYPE_TARGET_TYPE (arg)); | |
2285 | case TYPE_CODE_FUNC: | |
2286 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg); | |
2287 | case TYPE_CODE_INT: | |
2288 | case TYPE_CODE_ENUM: | |
2289 | case TYPE_CODE_CHAR: | |
2290 | case TYPE_CODE_RANGE: | |
2291 | case TYPE_CODE_BOOL: | |
2292 | return POINTER_CONVERSION_BADNESS; | |
2293 | default: | |
2294 | return INCOMPATIBLE_TYPE_BADNESS; | |
2295 | } | |
2296 | case TYPE_CODE_ARRAY: | |
2297 | switch (TYPE_CODE (arg)) | |
2298 | { | |
2299 | case TYPE_CODE_PTR: | |
2300 | case TYPE_CODE_ARRAY: | |
2301 | return rank_one_type (TYPE_TARGET_TYPE (parm), TYPE_TARGET_TYPE (arg)); | |
2302 | default: | |
2303 | return INCOMPATIBLE_TYPE_BADNESS; | |
2304 | } | |
2305 | case TYPE_CODE_FUNC: | |
2306 | switch (TYPE_CODE (arg)) | |
2307 | { | |
2308 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
2309 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg)); | |
2310 | default: | |
2311 | return INCOMPATIBLE_TYPE_BADNESS; | |
2312 | } | |
2313 | case TYPE_CODE_INT: | |
2314 | switch (TYPE_CODE (arg)) | |
2315 | { | |
2316 | case TYPE_CODE_INT: | |
2317 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2318 | { | |
2319 | /* Deal with signed, unsigned, and plain chars and | |
7b83ea04 | 2320 | signed and unsigned ints */ |
c5aa993b JM |
2321 | if (TYPE_NOSIGN (parm)) |
2322 | { | |
2323 | /* This case only for character types */ | |
2324 | if (TYPE_NOSIGN (arg)) /* plain char -> plain char */ | |
2325 | return 0; | |
2326 | else | |
2327 | return INTEGER_COERCION_BADNESS; /* signed/unsigned char -> plain char */ | |
2328 | } | |
2329 | else if (TYPE_UNSIGNED (parm)) | |
2330 | { | |
2331 | if (TYPE_UNSIGNED (arg)) | |
2332 | { | |
db577aea | 2333 | if (!strcmp_iw (TYPE_NAME (parm), TYPE_NAME (arg))) |
c5aa993b | 2334 | return 0; /* unsigned int -> unsigned int, or unsigned long -> unsigned long */ |
db577aea | 2335 | else if (!strcmp_iw (TYPE_NAME (arg), "int") && !strcmp_iw (TYPE_NAME (parm), "long")) |
c5aa993b JM |
2336 | return INTEGER_PROMOTION_BADNESS; /* unsigned int -> unsigned long */ |
2337 | else | |
2338 | return INTEGER_COERCION_BADNESS; /* unsigned long -> unsigned int */ | |
2339 | } | |
2340 | else | |
2341 | { | |
db577aea | 2342 | if (!strcmp_iw (TYPE_NAME (arg), "long") && !strcmp_iw (TYPE_NAME (parm), "int")) |
c5aa993b JM |
2343 | return INTEGER_COERCION_BADNESS; /* signed long -> unsigned int */ |
2344 | else | |
2345 | return INTEGER_CONVERSION_BADNESS; /* signed int/long -> unsigned int/long */ | |
2346 | } | |
2347 | } | |
2348 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2349 | { | |
db577aea | 2350 | if (!strcmp_iw (TYPE_NAME (parm), TYPE_NAME (arg))) |
c5aa993b | 2351 | return 0; |
db577aea | 2352 | else if (!strcmp_iw (TYPE_NAME (arg), "int") && !strcmp_iw (TYPE_NAME (parm), "long")) |
c5aa993b JM |
2353 | return INTEGER_PROMOTION_BADNESS; |
2354 | else | |
2355 | return INTEGER_COERCION_BADNESS; | |
2356 | } | |
2357 | else | |
2358 | return INTEGER_COERCION_BADNESS; | |
2359 | } | |
2360 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2361 | return INTEGER_PROMOTION_BADNESS; | |
2362 | else | |
2363 | return INTEGER_COERCION_BADNESS; | |
2364 | case TYPE_CODE_ENUM: | |
2365 | case TYPE_CODE_CHAR: | |
2366 | case TYPE_CODE_RANGE: | |
2367 | case TYPE_CODE_BOOL: | |
2368 | return INTEGER_PROMOTION_BADNESS; | |
2369 | case TYPE_CODE_FLT: | |
2370 | return INT_FLOAT_CONVERSION_BADNESS; | |
2371 | case TYPE_CODE_PTR: | |
2372 | return NS_POINTER_CONVERSION_BADNESS; | |
2373 | default: | |
2374 | return INCOMPATIBLE_TYPE_BADNESS; | |
2375 | } | |
2376 | break; | |
2377 | case TYPE_CODE_ENUM: | |
2378 | switch (TYPE_CODE (arg)) | |
2379 | { | |
2380 | case TYPE_CODE_INT: | |
2381 | case TYPE_CODE_CHAR: | |
2382 | case TYPE_CODE_RANGE: | |
2383 | case TYPE_CODE_BOOL: | |
2384 | case TYPE_CODE_ENUM: | |
2385 | return INTEGER_COERCION_BADNESS; | |
2386 | case TYPE_CODE_FLT: | |
2387 | return INT_FLOAT_CONVERSION_BADNESS; | |
2388 | default: | |
2389 | return INCOMPATIBLE_TYPE_BADNESS; | |
2390 | } | |
2391 | break; | |
2392 | case TYPE_CODE_CHAR: | |
2393 | switch (TYPE_CODE (arg)) | |
2394 | { | |
2395 | case TYPE_CODE_RANGE: | |
2396 | case TYPE_CODE_BOOL: | |
2397 | case TYPE_CODE_ENUM: | |
2398 | return INTEGER_COERCION_BADNESS; | |
2399 | case TYPE_CODE_FLT: | |
2400 | return INT_FLOAT_CONVERSION_BADNESS; | |
2401 | case TYPE_CODE_INT: | |
2402 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
2403 | return INTEGER_COERCION_BADNESS; | |
2404 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2405 | return INTEGER_PROMOTION_BADNESS; | |
2406 | /* >>> !! else fall through !! <<< */ | |
2407 | case TYPE_CODE_CHAR: | |
2408 | /* Deal with signed, unsigned, and plain chars for C++ | |
2409 | and with int cases falling through from previous case */ | |
2410 | if (TYPE_NOSIGN (parm)) | |
2411 | { | |
2412 | if (TYPE_NOSIGN (arg)) | |
2413 | return 0; | |
2414 | else | |
2415 | return INTEGER_COERCION_BADNESS; | |
2416 | } | |
2417 | else if (TYPE_UNSIGNED (parm)) | |
2418 | { | |
2419 | if (TYPE_UNSIGNED (arg)) | |
2420 | return 0; | |
2421 | else | |
2422 | return INTEGER_PROMOTION_BADNESS; | |
2423 | } | |
2424 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2425 | return 0; | |
2426 | else | |
2427 | return INTEGER_COERCION_BADNESS; | |
2428 | default: | |
2429 | return INCOMPATIBLE_TYPE_BADNESS; | |
2430 | } | |
2431 | break; | |
2432 | case TYPE_CODE_RANGE: | |
2433 | switch (TYPE_CODE (arg)) | |
2434 | { | |
2435 | case TYPE_CODE_INT: | |
2436 | case TYPE_CODE_CHAR: | |
2437 | case TYPE_CODE_RANGE: | |
2438 | case TYPE_CODE_BOOL: | |
2439 | case TYPE_CODE_ENUM: | |
2440 | return INTEGER_COERCION_BADNESS; | |
2441 | case TYPE_CODE_FLT: | |
2442 | return INT_FLOAT_CONVERSION_BADNESS; | |
2443 | default: | |
2444 | return INCOMPATIBLE_TYPE_BADNESS; | |
2445 | } | |
2446 | break; | |
2447 | case TYPE_CODE_BOOL: | |
2448 | switch (TYPE_CODE (arg)) | |
2449 | { | |
2450 | case TYPE_CODE_INT: | |
2451 | case TYPE_CODE_CHAR: | |
2452 | case TYPE_CODE_RANGE: | |
2453 | case TYPE_CODE_ENUM: | |
2454 | case TYPE_CODE_FLT: | |
2455 | case TYPE_CODE_PTR: | |
2456 | return BOOLEAN_CONVERSION_BADNESS; | |
2457 | case TYPE_CODE_BOOL: | |
2458 | return 0; | |
2459 | default: | |
2460 | return INCOMPATIBLE_TYPE_BADNESS; | |
2461 | } | |
2462 | break; | |
2463 | case TYPE_CODE_FLT: | |
2464 | switch (TYPE_CODE (arg)) | |
2465 | { | |
2466 | case TYPE_CODE_FLT: | |
2467 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2468 | return FLOAT_PROMOTION_BADNESS; | |
2469 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2470 | return 0; | |
2471 | else | |
2472 | return FLOAT_CONVERSION_BADNESS; | |
2473 | case TYPE_CODE_INT: | |
2474 | case TYPE_CODE_BOOL: | |
2475 | case TYPE_CODE_ENUM: | |
2476 | case TYPE_CODE_RANGE: | |
2477 | case TYPE_CODE_CHAR: | |
2478 | return INT_FLOAT_CONVERSION_BADNESS; | |
2479 | default: | |
2480 | return INCOMPATIBLE_TYPE_BADNESS; | |
2481 | } | |
2482 | break; | |
2483 | case TYPE_CODE_COMPLEX: | |
2484 | switch (TYPE_CODE (arg)) | |
2485 | { /* Strictly not needed for C++, but... */ | |
2486 | case TYPE_CODE_FLT: | |
2487 | return FLOAT_PROMOTION_BADNESS; | |
2488 | case TYPE_CODE_COMPLEX: | |
2489 | return 0; | |
2490 | default: | |
2491 | return INCOMPATIBLE_TYPE_BADNESS; | |
2492 | } | |
2493 | break; | |
2494 | case TYPE_CODE_STRUCT: | |
c906108c | 2495 | /* currently same as TYPE_CODE_CLASS */ |
c5aa993b JM |
2496 | switch (TYPE_CODE (arg)) |
2497 | { | |
2498 | case TYPE_CODE_STRUCT: | |
2499 | /* Check for derivation */ | |
2500 | if (is_ancestor (parm, arg)) | |
2501 | return BASE_CONVERSION_BADNESS; | |
2502 | /* else fall through */ | |
2503 | default: | |
2504 | return INCOMPATIBLE_TYPE_BADNESS; | |
2505 | } | |
2506 | break; | |
2507 | case TYPE_CODE_UNION: | |
2508 | switch (TYPE_CODE (arg)) | |
2509 | { | |
2510 | case TYPE_CODE_UNION: | |
2511 | default: | |
2512 | return INCOMPATIBLE_TYPE_BADNESS; | |
2513 | } | |
2514 | break; | |
2515 | case TYPE_CODE_MEMBER: | |
2516 | switch (TYPE_CODE (arg)) | |
2517 | { | |
2518 | default: | |
2519 | return INCOMPATIBLE_TYPE_BADNESS; | |
2520 | } | |
2521 | break; | |
2522 | case TYPE_CODE_METHOD: | |
2523 | switch (TYPE_CODE (arg)) | |
2524 | { | |
2525 | ||
2526 | default: | |
2527 | return INCOMPATIBLE_TYPE_BADNESS; | |
2528 | } | |
2529 | break; | |
2530 | case TYPE_CODE_REF: | |
2531 | switch (TYPE_CODE (arg)) | |
2532 | { | |
2533 | ||
2534 | default: | |
2535 | return INCOMPATIBLE_TYPE_BADNESS; | |
2536 | } | |
2537 | ||
2538 | break; | |
2539 | case TYPE_CODE_SET: | |
2540 | switch (TYPE_CODE (arg)) | |
2541 | { | |
2542 | /* Not in C++ */ | |
2543 | case TYPE_CODE_SET: | |
2544 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), TYPE_FIELD_TYPE (arg, 0)); | |
2545 | default: | |
2546 | return INCOMPATIBLE_TYPE_BADNESS; | |
2547 | } | |
2548 | break; | |
2549 | case TYPE_CODE_VOID: | |
2550 | default: | |
2551 | return INCOMPATIBLE_TYPE_BADNESS; | |
2552 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
2553 | } |
2554 | ||
c5aa993b JM |
2555 | |
2556 | /* End of functions for overload resolution */ | |
c906108c | 2557 | |
c906108c | 2558 | static void |
fba45db2 | 2559 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
2560 | { |
2561 | int bitno; | |
2562 | ||
2563 | for (bitno = 0; bitno < nbits; bitno++) | |
2564 | { | |
2565 | if ((bitno % 8) == 0) | |
2566 | { | |
2567 | puts_filtered (" "); | |
2568 | } | |
2569 | if (B_TST (bits, bitno)) | |
2570 | { | |
2571 | printf_filtered ("1"); | |
2572 | } | |
2573 | else | |
2574 | { | |
2575 | printf_filtered ("0"); | |
2576 | } | |
2577 | } | |
2578 | } | |
2579 | ||
2580 | /* The args list is a strange beast. It is either terminated by a NULL | |
2581 | pointer for varargs functions, or by a pointer to a TYPE_CODE_VOID | |
2582 | type for normal fixed argcount functions. (FIXME someday) | |
2583 | Also note the first arg should be the "this" pointer, we may not want to | |
2584 | include it since we may get into a infinitely recursive situation. */ | |
2585 | ||
2586 | static void | |
fba45db2 | 2587 | print_arg_types (struct type **args, int spaces) |
c906108c SS |
2588 | { |
2589 | if (args != NULL) | |
2590 | { | |
2591 | while (*args != NULL) | |
2592 | { | |
2593 | recursive_dump_type (*args, spaces + 2); | |
c5aa993b | 2594 | if ((*args++)->code == TYPE_CODE_VOID) |
c906108c SS |
2595 | { |
2596 | break; | |
2597 | } | |
2598 | } | |
2599 | } | |
2600 | } | |
2601 | ||
2602 | static void | |
fba45db2 | 2603 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
2604 | { |
2605 | int method_idx; | |
2606 | int overload_idx; | |
2607 | struct fn_field *f; | |
2608 | ||
2609 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 2610 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
2611 | printf_filtered ("\n"); |
2612 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
2613 | { | |
2614 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
2615 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
2616 | method_idx, | |
2617 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
2618 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
2619 | gdb_stdout); | |
c906108c SS |
2620 | printf_filtered (") length %d\n", |
2621 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); | |
2622 | for (overload_idx = 0; | |
2623 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
2624 | overload_idx++) | |
2625 | { | |
2626 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
2627 | overload_idx, | |
2628 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
2629 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
2630 | gdb_stdout); | |
c906108c SS |
2631 | printf_filtered (")\n"); |
2632 | printfi_filtered (spaces + 8, "type "); | |
d4f3574e | 2633 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), gdb_stdout); |
c906108c SS |
2634 | printf_filtered ("\n"); |
2635 | ||
2636 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
2637 | spaces + 8 + 2); | |
2638 | ||
2639 | printfi_filtered (spaces + 8, "args "); | |
d4f3574e | 2640 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), gdb_stdout); |
c906108c SS |
2641 | printf_filtered ("\n"); |
2642 | ||
2643 | print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), spaces); | |
2644 | printfi_filtered (spaces + 8, "fcontext "); | |
d4f3574e SS |
2645 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
2646 | gdb_stdout); | |
c906108c SS |
2647 | printf_filtered ("\n"); |
2648 | ||
2649 | printfi_filtered (spaces + 8, "is_const %d\n", | |
2650 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
2651 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
2652 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
2653 | printfi_filtered (spaces + 8, "is_private %d\n", | |
2654 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
2655 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
2656 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
2657 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
2658 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
2659 | printfi_filtered (spaces + 8, "voffset %u\n", | |
2660 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
2661 | } | |
2662 | } | |
2663 | } | |
2664 | ||
2665 | static void | |
fba45db2 | 2666 | print_cplus_stuff (struct type *type, int spaces) |
c906108c SS |
2667 | { |
2668 | printfi_filtered (spaces, "n_baseclasses %d\n", | |
2669 | TYPE_N_BASECLASSES (type)); | |
2670 | printfi_filtered (spaces, "nfn_fields %d\n", | |
2671 | TYPE_NFN_FIELDS (type)); | |
2672 | printfi_filtered (spaces, "nfn_fields_total %d\n", | |
2673 | TYPE_NFN_FIELDS_TOTAL (type)); | |
2674 | if (TYPE_N_BASECLASSES (type) > 0) | |
2675 | { | |
2676 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
2677 | TYPE_N_BASECLASSES (type)); | |
d4f3574e | 2678 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), gdb_stdout); |
c906108c SS |
2679 | printf_filtered (")"); |
2680 | ||
2681 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
2682 | TYPE_N_BASECLASSES (type)); | |
2683 | puts_filtered ("\n"); | |
2684 | } | |
2685 | if (TYPE_NFIELDS (type) > 0) | |
2686 | { | |
2687 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
2688 | { | |
2689 | printfi_filtered (spaces, "private_field_bits (%d bits at *", | |
2690 | TYPE_NFIELDS (type)); | |
d4f3574e | 2691 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), gdb_stdout); |
c906108c SS |
2692 | printf_filtered (")"); |
2693 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
2694 | TYPE_NFIELDS (type)); | |
2695 | puts_filtered ("\n"); | |
2696 | } | |
2697 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
2698 | { | |
2699 | printfi_filtered (spaces, "protected_field_bits (%d bits at *", | |
2700 | TYPE_NFIELDS (type)); | |
d4f3574e | 2701 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), gdb_stdout); |
c906108c SS |
2702 | printf_filtered (")"); |
2703 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
2704 | TYPE_NFIELDS (type)); | |
2705 | puts_filtered ("\n"); | |
2706 | } | |
2707 | } | |
2708 | if (TYPE_NFN_FIELDS (type) > 0) | |
2709 | { | |
2710 | dump_fn_fieldlists (type, spaces); | |
2711 | } | |
2712 | } | |
2713 | ||
e9e79dd9 FF |
2714 | static void |
2715 | print_bound_type (int bt) | |
2716 | { | |
2717 | switch (bt) | |
2718 | { | |
2719 | case BOUND_CANNOT_BE_DETERMINED: | |
2720 | printf_filtered ("(BOUND_CANNOT_BE_DETERMINED)"); | |
2721 | break; | |
2722 | case BOUND_BY_REF_ON_STACK: | |
2723 | printf_filtered ("(BOUND_BY_REF_ON_STACK)"); | |
2724 | break; | |
2725 | case BOUND_BY_VALUE_ON_STACK: | |
2726 | printf_filtered ("(BOUND_BY_VALUE_ON_STACK)"); | |
2727 | break; | |
2728 | case BOUND_BY_REF_IN_REG: | |
2729 | printf_filtered ("(BOUND_BY_REF_IN_REG)"); | |
2730 | break; | |
2731 | case BOUND_BY_VALUE_IN_REG: | |
2732 | printf_filtered ("(BOUND_BY_VALUE_IN_REG)"); | |
2733 | break; | |
2734 | case BOUND_SIMPLE: | |
2735 | printf_filtered ("(BOUND_SIMPLE)"); | |
2736 | break; | |
2737 | default: | |
2738 | printf_filtered ("(unknown bound type)"); | |
2739 | break; | |
2740 | } | |
2741 | } | |
2742 | ||
c906108c SS |
2743 | static struct obstack dont_print_type_obstack; |
2744 | ||
2745 | void | |
fba45db2 | 2746 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
2747 | { |
2748 | int idx; | |
2749 | ||
2750 | if (spaces == 0) | |
2751 | obstack_begin (&dont_print_type_obstack, 0); | |
2752 | ||
2753 | if (TYPE_NFIELDS (type) > 0 | |
2754 | || (TYPE_CPLUS_SPECIFIC (type) && TYPE_NFN_FIELDS (type) > 0)) | |
2755 | { | |
2756 | struct type **first_dont_print | |
c5aa993b | 2757 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 2758 | |
c5aa993b JM |
2759 | int i = (struct type **) obstack_next_free (&dont_print_type_obstack) |
2760 | - first_dont_print; | |
c906108c SS |
2761 | |
2762 | while (--i >= 0) | |
2763 | { | |
2764 | if (type == first_dont_print[i]) | |
2765 | { | |
2766 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 2767 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
2768 | printf_filtered (" <same as already seen type>\n"); |
2769 | return; | |
2770 | } | |
2771 | } | |
2772 | ||
2773 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
2774 | } | |
2775 | ||
2776 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 2777 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
2778 | printf_filtered ("\n"); |
2779 | printfi_filtered (spaces, "name '%s' (", | |
2780 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 2781 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c | 2782 | printf_filtered (")\n"); |
e9e79dd9 FF |
2783 | printfi_filtered (spaces, "tagname '%s' (", |
2784 | TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>"); | |
2785 | gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); | |
2786 | printf_filtered (")\n"); | |
c906108c SS |
2787 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
2788 | switch (TYPE_CODE (type)) | |
2789 | { | |
c5aa993b JM |
2790 | case TYPE_CODE_UNDEF: |
2791 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
2792 | break; | |
2793 | case TYPE_CODE_PTR: | |
2794 | printf_filtered ("(TYPE_CODE_PTR)"); | |
2795 | break; | |
2796 | case TYPE_CODE_ARRAY: | |
2797 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
2798 | break; | |
2799 | case TYPE_CODE_STRUCT: | |
2800 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
2801 | break; | |
2802 | case TYPE_CODE_UNION: | |
2803 | printf_filtered ("(TYPE_CODE_UNION)"); | |
2804 | break; | |
2805 | case TYPE_CODE_ENUM: | |
2806 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
2807 | break; | |
2808 | case TYPE_CODE_FUNC: | |
2809 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
2810 | break; | |
2811 | case TYPE_CODE_INT: | |
2812 | printf_filtered ("(TYPE_CODE_INT)"); | |
2813 | break; | |
2814 | case TYPE_CODE_FLT: | |
2815 | printf_filtered ("(TYPE_CODE_FLT)"); | |
2816 | break; | |
2817 | case TYPE_CODE_VOID: | |
2818 | printf_filtered ("(TYPE_CODE_VOID)"); | |
2819 | break; | |
2820 | case TYPE_CODE_SET: | |
2821 | printf_filtered ("(TYPE_CODE_SET)"); | |
2822 | break; | |
2823 | case TYPE_CODE_RANGE: | |
2824 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
2825 | break; | |
2826 | case TYPE_CODE_STRING: | |
2827 | printf_filtered ("(TYPE_CODE_STRING)"); | |
2828 | break; | |
e9e79dd9 FF |
2829 | case TYPE_CODE_BITSTRING: |
2830 | printf_filtered ("(TYPE_CODE_BITSTRING)"); | |
2831 | break; | |
c5aa993b JM |
2832 | case TYPE_CODE_ERROR: |
2833 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
2834 | break; | |
2835 | case TYPE_CODE_MEMBER: | |
2836 | printf_filtered ("(TYPE_CODE_MEMBER)"); | |
2837 | break; | |
2838 | case TYPE_CODE_METHOD: | |
2839 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
2840 | break; | |
2841 | case TYPE_CODE_REF: | |
2842 | printf_filtered ("(TYPE_CODE_REF)"); | |
2843 | break; | |
2844 | case TYPE_CODE_CHAR: | |
2845 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
2846 | break; | |
2847 | case TYPE_CODE_BOOL: | |
2848 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
2849 | break; | |
e9e79dd9 FF |
2850 | case TYPE_CODE_COMPLEX: |
2851 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
2852 | break; | |
c5aa993b JM |
2853 | case TYPE_CODE_TYPEDEF: |
2854 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
2855 | break; | |
e9e79dd9 FF |
2856 | case TYPE_CODE_TEMPLATE: |
2857 | printf_filtered ("(TYPE_CODE_TEMPLATE)"); | |
2858 | break; | |
2859 | case TYPE_CODE_TEMPLATE_ARG: | |
2860 | printf_filtered ("(TYPE_CODE_TEMPLATE_ARG)"); | |
2861 | break; | |
c5aa993b JM |
2862 | default: |
2863 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
2864 | break; | |
c906108c SS |
2865 | } |
2866 | puts_filtered ("\n"); | |
2867 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
e9e79dd9 FF |
2868 | printfi_filtered (spaces, "upper_bound_type 0x%x ", |
2869 | TYPE_ARRAY_UPPER_BOUND_TYPE (type)); | |
2870 | print_bound_type (TYPE_ARRAY_UPPER_BOUND_TYPE (type)); | |
2871 | puts_filtered ("\n"); | |
2872 | printfi_filtered (spaces, "lower_bound_type 0x%x ", | |
2873 | TYPE_ARRAY_LOWER_BOUND_TYPE (type)); | |
2874 | print_bound_type (TYPE_ARRAY_LOWER_BOUND_TYPE (type)); | |
2875 | puts_filtered ("\n"); | |
c906108c | 2876 | printfi_filtered (spaces, "objfile "); |
d4f3574e | 2877 | gdb_print_host_address (TYPE_OBJFILE (type), gdb_stdout); |
c906108c SS |
2878 | printf_filtered ("\n"); |
2879 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 2880 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
2881 | printf_filtered ("\n"); |
2882 | if (TYPE_TARGET_TYPE (type) != NULL) | |
2883 | { | |
2884 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
2885 | } | |
2886 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 2887 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
2888 | printf_filtered ("\n"); |
2889 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 2890 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 2891 | printf_filtered ("\n"); |
e9e79dd9 FF |
2892 | printfi_filtered (spaces, "cv_type "); |
2893 | gdb_print_host_address (TYPE_CV_TYPE (type), gdb_stdout); | |
2894 | printf_filtered ("\n"); | |
2895 | printfi_filtered (spaces, "as_type "); | |
2896 | gdb_print_host_address (TYPE_AS_TYPE (type), gdb_stdout); | |
2897 | printf_filtered ("\n"); | |
c906108c | 2898 | printfi_filtered (spaces, "flags 0x%x", TYPE_FLAGS (type)); |
762a036f | 2899 | if (TYPE_UNSIGNED (type)) |
c906108c SS |
2900 | { |
2901 | puts_filtered (" TYPE_FLAG_UNSIGNED"); | |
2902 | } | |
762a036f FF |
2903 | if (TYPE_NOSIGN (type)) |
2904 | { | |
2905 | puts_filtered (" TYPE_FLAG_NOSIGN"); | |
2906 | } | |
2907 | if (TYPE_STUB (type)) | |
c906108c SS |
2908 | { |
2909 | puts_filtered (" TYPE_FLAG_STUB"); | |
2910 | } | |
762a036f FF |
2911 | if (TYPE_TARGET_STUB (type)) |
2912 | { | |
2913 | puts_filtered (" TYPE_FLAG_TARGET_STUB"); | |
2914 | } | |
2915 | if (TYPE_STATIC (type)) | |
2916 | { | |
2917 | puts_filtered (" TYPE_FLAG_STATIC"); | |
2918 | } | |
2919 | if (TYPE_CONST (type)) | |
2920 | { | |
2921 | puts_filtered (" TYPE_FLAG_CONST"); | |
2922 | } | |
2923 | if (TYPE_VOLATILE (type)) | |
2924 | { | |
2925 | puts_filtered (" TYPE_FLAG_VOLATILE"); | |
2926 | } | |
2927 | if (TYPE_PROTOTYPED (type)) | |
2928 | { | |
2929 | puts_filtered (" TYPE_FLAG_PROTOTYPED"); | |
2930 | } | |
2931 | if (TYPE_INCOMPLETE (type)) | |
2932 | { | |
2933 | puts_filtered (" TYPE_FLAG_INCOMPLETE"); | |
2934 | } | |
2935 | if (TYPE_CODE_SPACE (type)) | |
2936 | { | |
2937 | puts_filtered (" TYPE_FLAG_CODE_SPACE"); | |
2938 | } | |
2939 | if (TYPE_DATA_SPACE (type)) | |
2940 | { | |
2941 | puts_filtered (" TYPE_FLAG_DATA_SPACE"); | |
2942 | } | |
2943 | if (TYPE_VARARGS (type)) | |
2944 | { | |
2945 | puts_filtered (" TYPE_FLAG_VARARGS"); | |
2946 | } | |
c906108c SS |
2947 | puts_filtered ("\n"); |
2948 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 2949 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
2950 | puts_filtered ("\n"); |
2951 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
2952 | { | |
2953 | printfi_filtered (spaces + 2, | |
2954 | "[%d] bitpos %d bitsize %d type ", | |
2955 | idx, TYPE_FIELD_BITPOS (type, idx), | |
2956 | TYPE_FIELD_BITSIZE (type, idx)); | |
d4f3574e | 2957 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
2958 | printf_filtered (" name '%s' (", |
2959 | TYPE_FIELD_NAME (type, idx) != NULL | |
2960 | ? TYPE_FIELD_NAME (type, idx) | |
2961 | : "<NULL>"); | |
d4f3574e | 2962 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
2963 | printf_filtered (")\n"); |
2964 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
2965 | { | |
2966 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
2967 | } | |
2968 | } | |
2969 | printfi_filtered (spaces, "vptr_basetype "); | |
d4f3574e | 2970 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); |
c906108c SS |
2971 | puts_filtered ("\n"); |
2972 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
2973 | { | |
2974 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
2975 | } | |
2976 | printfi_filtered (spaces, "vptr_fieldno %d\n", TYPE_VPTR_FIELDNO (type)); | |
2977 | switch (TYPE_CODE (type)) | |
2978 | { | |
c5aa993b JM |
2979 | case TYPE_CODE_METHOD: |
2980 | case TYPE_CODE_FUNC: | |
2981 | printfi_filtered (spaces, "arg_types "); | |
d4f3574e | 2982 | gdb_print_host_address (TYPE_ARG_TYPES (type), gdb_stdout); |
c5aa993b JM |
2983 | puts_filtered ("\n"); |
2984 | print_arg_types (TYPE_ARG_TYPES (type), spaces); | |
2985 | break; | |
c906108c | 2986 | |
c5aa993b JM |
2987 | case TYPE_CODE_STRUCT: |
2988 | printfi_filtered (spaces, "cplus_stuff "); | |
d4f3574e | 2989 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), gdb_stdout); |
c5aa993b JM |
2990 | puts_filtered ("\n"); |
2991 | print_cplus_stuff (type, spaces); | |
2992 | break; | |
c906108c | 2993 | |
701c159d AC |
2994 | case TYPE_CODE_FLT: |
2995 | printfi_filtered (spaces, "floatformat "); | |
2996 | if (TYPE_FLOATFORMAT (type) == NULL | |
2997 | || TYPE_FLOATFORMAT (type)->name == NULL) | |
2998 | puts_filtered ("(null)"); | |
2999 | else | |
3000 | puts_filtered (TYPE_FLOATFORMAT (type)->name); | |
3001 | puts_filtered ("\n"); | |
3002 | break; | |
3003 | ||
c5aa993b JM |
3004 | default: |
3005 | /* We have to pick one of the union types to be able print and test | |
7b83ea04 AC |
3006 | the value. Pick cplus_struct_type, even though we know it isn't |
3007 | any particular one. */ | |
c5aa993b | 3008 | printfi_filtered (spaces, "type_specific "); |
d4f3574e | 3009 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), gdb_stdout); |
c5aa993b JM |
3010 | if (TYPE_CPLUS_SPECIFIC (type) != NULL) |
3011 | { | |
3012 | printf_filtered (" (unknown data form)"); | |
3013 | } | |
3014 | printf_filtered ("\n"); | |
3015 | break; | |
c906108c SS |
3016 | |
3017 | } | |
3018 | if (spaces == 0) | |
3019 | obstack_free (&dont_print_type_obstack, NULL); | |
3020 | } | |
3021 | ||
a14ed312 | 3022 | static void build_gdbtypes (void); |
c906108c | 3023 | static void |
fba45db2 | 3024 | build_gdbtypes (void) |
c906108c SS |
3025 | { |
3026 | builtin_type_void = | |
3027 | init_type (TYPE_CODE_VOID, 1, | |
3028 | 0, | |
3029 | "void", (struct objfile *) NULL); | |
3030 | builtin_type_char = | |
3031 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
4e409299 JB |
3032 | (TYPE_FLAG_NOSIGN |
3033 | | (TARGET_CHAR_SIGNED ? 0 : TYPE_FLAG_UNSIGNED)), | |
c906108c | 3034 | "char", (struct objfile *) NULL); |
c5aa993b | 3035 | builtin_type_true_char = |
9e0b60a8 JM |
3036 | init_type (TYPE_CODE_CHAR, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
3037 | 0, | |
3038 | "true character", (struct objfile *) NULL); | |
c906108c SS |
3039 | builtin_type_signed_char = |
3040 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3041 | 0, | |
3042 | "signed char", (struct objfile *) NULL); | |
3043 | builtin_type_unsigned_char = | |
3044 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3045 | TYPE_FLAG_UNSIGNED, | |
3046 | "unsigned char", (struct objfile *) NULL); | |
3047 | builtin_type_short = | |
3048 | init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT, | |
3049 | 0, | |
3050 | "short", (struct objfile *) NULL); | |
3051 | builtin_type_unsigned_short = | |
3052 | init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT, | |
3053 | TYPE_FLAG_UNSIGNED, | |
3054 | "unsigned short", (struct objfile *) NULL); | |
3055 | builtin_type_int = | |
3056 | init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, | |
3057 | 0, | |
3058 | "int", (struct objfile *) NULL); | |
3059 | builtin_type_unsigned_int = | |
3060 | init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, | |
3061 | TYPE_FLAG_UNSIGNED, | |
3062 | "unsigned int", (struct objfile *) NULL); | |
3063 | builtin_type_long = | |
3064 | init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, | |
3065 | 0, | |
3066 | "long", (struct objfile *) NULL); | |
3067 | builtin_type_unsigned_long = | |
3068 | init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, | |
3069 | TYPE_FLAG_UNSIGNED, | |
3070 | "unsigned long", (struct objfile *) NULL); | |
3071 | builtin_type_long_long = | |
3072 | init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, | |
3073 | 0, | |
3074 | "long long", (struct objfile *) NULL); | |
c5aa993b | 3075 | builtin_type_unsigned_long_long = |
c906108c SS |
3076 | init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, |
3077 | TYPE_FLAG_UNSIGNED, | |
3078 | "unsigned long long", (struct objfile *) NULL); | |
3079 | builtin_type_float = | |
3080 | init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT, | |
3081 | 0, | |
3082 | "float", (struct objfile *) NULL); | |
701c159d | 3083 | TYPE_FLOATFORMAT (builtin_type_float) = TARGET_FLOAT_FORMAT; |
c906108c SS |
3084 | builtin_type_double = |
3085 | init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, | |
3086 | 0, | |
3087 | "double", (struct objfile *) NULL); | |
701c159d | 3088 | TYPE_FLOATFORMAT (builtin_type_double) = TARGET_DOUBLE_FORMAT; |
c906108c SS |
3089 | builtin_type_long_double = |
3090 | init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT, | |
3091 | 0, | |
3092 | "long double", (struct objfile *) NULL); | |
701c159d | 3093 | TYPE_FLOATFORMAT (builtin_type_long_double) = TARGET_LONG_DOUBLE_FORMAT; |
c906108c SS |
3094 | builtin_type_complex = |
3095 | init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT, | |
3096 | 0, | |
3097 | "complex", (struct objfile *) NULL); | |
3098 | TYPE_TARGET_TYPE (builtin_type_complex) = builtin_type_float; | |
3099 | builtin_type_double_complex = | |
3100 | init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, | |
3101 | 0, | |
3102 | "double complex", (struct objfile *) NULL); | |
3103 | TYPE_TARGET_TYPE (builtin_type_double_complex) = builtin_type_double; | |
3104 | builtin_type_string = | |
3105 | init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3106 | 0, | |
3107 | "string", (struct objfile *) NULL); | |
3108 | builtin_type_int8 = | |
3109 | init_type (TYPE_CODE_INT, 8 / 8, | |
3110 | 0, | |
3111 | "int8_t", (struct objfile *) NULL); | |
3112 | builtin_type_uint8 = | |
3113 | init_type (TYPE_CODE_INT, 8 / 8, | |
3114 | TYPE_FLAG_UNSIGNED, | |
3115 | "uint8_t", (struct objfile *) NULL); | |
3116 | builtin_type_int16 = | |
3117 | init_type (TYPE_CODE_INT, 16 / 8, | |
3118 | 0, | |
3119 | "int16_t", (struct objfile *) NULL); | |
3120 | builtin_type_uint16 = | |
3121 | init_type (TYPE_CODE_INT, 16 / 8, | |
3122 | TYPE_FLAG_UNSIGNED, | |
3123 | "uint16_t", (struct objfile *) NULL); | |
3124 | builtin_type_int32 = | |
3125 | init_type (TYPE_CODE_INT, 32 / 8, | |
3126 | 0, | |
3127 | "int32_t", (struct objfile *) NULL); | |
3128 | builtin_type_uint32 = | |
3129 | init_type (TYPE_CODE_INT, 32 / 8, | |
3130 | TYPE_FLAG_UNSIGNED, | |
3131 | "uint32_t", (struct objfile *) NULL); | |
3132 | builtin_type_int64 = | |
3133 | init_type (TYPE_CODE_INT, 64 / 8, | |
3134 | 0, | |
3135 | "int64_t", (struct objfile *) NULL); | |
3136 | builtin_type_uint64 = | |
3137 | init_type (TYPE_CODE_INT, 64 / 8, | |
3138 | TYPE_FLAG_UNSIGNED, | |
3139 | "uint64_t", (struct objfile *) NULL); | |
8b982acf EZ |
3140 | builtin_type_int128 = |
3141 | init_type (TYPE_CODE_INT, 128 / 8, | |
3142 | 0, | |
3143 | "int128_t", (struct objfile *) NULL); | |
3144 | builtin_type_uint128 = | |
3145 | init_type (TYPE_CODE_INT, 128 / 8, | |
3146 | TYPE_FLAG_UNSIGNED, | |
3147 | "uint128_t", (struct objfile *) NULL); | |
c906108c SS |
3148 | builtin_type_bool = |
3149 | init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3150 | 0, | |
3151 | "bool", (struct objfile *) NULL); | |
3152 | ||
c5aa993b | 3153 | /* Add user knob for controlling resolution of opaque types */ |
c906108c | 3154 | add_show_from_set |
c5aa993b | 3155 | (add_set_cmd ("opaque-type-resolution", class_support, var_boolean, (char *) &opaque_type_resolution, |
c906108c SS |
3156 | "Set resolution of opaque struct/class/union types (if set before loading symbols).", |
3157 | &setlist), | |
3158 | &showlist); | |
3159 | opaque_type_resolution = 1; | |
3160 | ||
917317f4 JM |
3161 | /* Build SIMD types. */ |
3162 | builtin_type_v4sf | |
3163 | = init_simd_type ("__builtin_v4sf", builtin_type_float, "f", 4); | |
c2d11a7d JM |
3164 | builtin_type_v4si |
3165 | = init_simd_type ("__builtin_v4si", builtin_type_int32, "f", 4); | |
3166 | builtin_type_v8qi | |
3167 | = init_simd_type ("__builtin_v8qi", builtin_type_int8, "f", 8); | |
3168 | builtin_type_v4hi | |
3169 | = init_simd_type ("__builtin_v4hi", builtin_type_int16, "f", 4); | |
3170 | builtin_type_v2si | |
3171 | = init_simd_type ("__builtin_v2si", builtin_type_int32, "f", 2); | |
c4093a6a JM |
3172 | |
3173 | /* Pointer/Address types. */ | |
ee3a7b7f JB |
3174 | |
3175 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
3176 | the same --- for example, on the D10V, pointers are 16 bits long, | |
3177 | but addresses are 32 bits long. See doc/gdbint.texinfo, | |
3178 | ``Pointers Are Not Always Addresses''. | |
3179 | ||
3180 | The upshot is: | |
3181 | - gdb's `struct type' always describes the target's | |
3182 | representation. | |
3183 | - gdb's `struct value' objects should always hold values in | |
3184 | target form. | |
3185 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
3186 | address space that the assembler and linker work with. Thus, | |
3187 | since target_read_memory takes a CORE_ADDR as an argument, it | |
3188 | can access any memory on the target, even if the processor has | |
3189 | separate code and data address spaces. | |
3190 | ||
3191 | So, for example: | |
3192 | - If v is a value holding a D10V code pointer, its contents are | |
3193 | in target form: a big-endian address left-shifted two bits. | |
3194 | - If p is a D10V pointer type, TYPE_LENGTH (p) == 2, just as | |
3195 | sizeof (void *) == 2 on the target. | |
3196 | ||
3197 | In this context, builtin_type_CORE_ADDR is a bit odd: it's a | |
3198 | target type for a value the target will never see. It's only | |
3199 | used to hold the values of (typeless) linker symbols, which are | |
3200 | indeed in the unified virtual address space. */ | |
090a2205 | 3201 | builtin_type_void_data_ptr = make_pointer_type (builtin_type_void, NULL); |
ee3a7b7f JB |
3202 | builtin_type_void_func_ptr |
3203 | = lookup_pointer_type (lookup_function_type (builtin_type_void)); | |
c4093a6a | 3204 | builtin_type_CORE_ADDR = |
52204a0b | 3205 | init_type (TYPE_CODE_INT, TARGET_ADDR_BIT / 8, |
c4093a6a JM |
3206 | TYPE_FLAG_UNSIGNED, |
3207 | "__CORE_ADDR", (struct objfile *) NULL); | |
3208 | builtin_type_bfd_vma = | |
3209 | init_type (TYPE_CODE_INT, TARGET_BFD_VMA_BIT / 8, | |
3210 | TYPE_FLAG_UNSIGNED, | |
3211 | "__bfd_vma", (struct objfile *) NULL); | |
c906108c SS |
3212 | } |
3213 | ||
3214 | ||
a14ed312 | 3215 | extern void _initialize_gdbtypes (void); |
c906108c | 3216 | void |
fba45db2 | 3217 | _initialize_gdbtypes (void) |
c906108c | 3218 | { |
5d161b24 | 3219 | struct cmd_list_element *c; |
c906108c | 3220 | build_gdbtypes (); |
0f71a2f6 JM |
3221 | |
3222 | /* FIXME - For the moment, handle types by swapping them in and out. | |
3223 | Should be using the per-architecture data-pointer and a large | |
3224 | struct. */ | |
c5aa993b JM |
3225 | register_gdbarch_swap (&builtin_type_void, sizeof (struct type *), NULL); |
3226 | register_gdbarch_swap (&builtin_type_char, sizeof (struct type *), NULL); | |
3227 | register_gdbarch_swap (&builtin_type_short, sizeof (struct type *), NULL); | |
3228 | register_gdbarch_swap (&builtin_type_int, sizeof (struct type *), NULL); | |
3229 | register_gdbarch_swap (&builtin_type_long, sizeof (struct type *), NULL); | |
3230 | register_gdbarch_swap (&builtin_type_long_long, sizeof (struct type *), NULL); | |
3231 | register_gdbarch_swap (&builtin_type_signed_char, sizeof (struct type *), NULL); | |
3232 | register_gdbarch_swap (&builtin_type_unsigned_char, sizeof (struct type *), NULL); | |
3233 | register_gdbarch_swap (&builtin_type_unsigned_short, sizeof (struct type *), NULL); | |
3234 | register_gdbarch_swap (&builtin_type_unsigned_int, sizeof (struct type *), NULL); | |
3235 | register_gdbarch_swap (&builtin_type_unsigned_long, sizeof (struct type *), NULL); | |
3236 | register_gdbarch_swap (&builtin_type_unsigned_long_long, sizeof (struct type *), NULL); | |
3237 | register_gdbarch_swap (&builtin_type_float, sizeof (struct type *), NULL); | |
3238 | register_gdbarch_swap (&builtin_type_double, sizeof (struct type *), NULL); | |
3239 | register_gdbarch_swap (&builtin_type_long_double, sizeof (struct type *), NULL); | |
3240 | register_gdbarch_swap (&builtin_type_complex, sizeof (struct type *), NULL); | |
3241 | register_gdbarch_swap (&builtin_type_double_complex, sizeof (struct type *), NULL); | |
3242 | register_gdbarch_swap (&builtin_type_string, sizeof (struct type *), NULL); | |
3243 | register_gdbarch_swap (&builtin_type_int8, sizeof (struct type *), NULL); | |
3244 | register_gdbarch_swap (&builtin_type_uint8, sizeof (struct type *), NULL); | |
3245 | register_gdbarch_swap (&builtin_type_int16, sizeof (struct type *), NULL); | |
3246 | register_gdbarch_swap (&builtin_type_uint16, sizeof (struct type *), NULL); | |
3247 | register_gdbarch_swap (&builtin_type_int32, sizeof (struct type *), NULL); | |
3248 | register_gdbarch_swap (&builtin_type_uint32, sizeof (struct type *), NULL); | |
3249 | register_gdbarch_swap (&builtin_type_int64, sizeof (struct type *), NULL); | |
3250 | register_gdbarch_swap (&builtin_type_uint64, sizeof (struct type *), NULL); | |
8b982acf EZ |
3251 | register_gdbarch_swap (&builtin_type_int128, sizeof (struct type *), NULL); |
3252 | register_gdbarch_swap (&builtin_type_uint128, sizeof (struct type *), NULL); | |
917317f4 | 3253 | register_gdbarch_swap (&builtin_type_v4sf, sizeof (struct type *), NULL); |
c2d11a7d JM |
3254 | register_gdbarch_swap (&builtin_type_v4si, sizeof (struct type *), NULL); |
3255 | register_gdbarch_swap (&builtin_type_v8qi, sizeof (struct type *), NULL); | |
3256 | register_gdbarch_swap (&builtin_type_v4hi, sizeof (struct type *), NULL); | |
3257 | register_gdbarch_swap (&builtin_type_v2si, sizeof (struct type *), NULL); | |
090a2205 | 3258 | REGISTER_GDBARCH_SWAP (builtin_type_void_data_ptr); |
ee3a7b7f | 3259 | REGISTER_GDBARCH_SWAP (builtin_type_void_func_ptr); |
c4093a6a JM |
3260 | REGISTER_GDBARCH_SWAP (builtin_type_CORE_ADDR); |
3261 | REGISTER_GDBARCH_SWAP (builtin_type_bfd_vma); | |
0f71a2f6 | 3262 | register_gdbarch_swap (NULL, 0, build_gdbtypes); |
5d161b24 | 3263 | |
598f52df AC |
3264 | /* Note: These types do not need to be swapped - they are target |
3265 | neutral. */ | |
3266 | builtin_type_ieee_single_big = | |
3267 | init_type (TYPE_CODE_FLT, floatformat_ieee_single_big.totalsize / 8, | |
3268 | 0, "builtin_type_ieee_single_big", NULL); | |
3269 | TYPE_FLOATFORMAT (builtin_type_ieee_single_big) = &floatformat_ieee_single_big; | |
3270 | builtin_type_ieee_single_little = | |
3271 | init_type (TYPE_CODE_FLT, floatformat_ieee_single_little.totalsize / 8, | |
3272 | 0, "builtin_type_ieee_single_little", NULL); | |
3273 | builtin_type_ieee_double_big = | |
3274 | init_type (TYPE_CODE_FLT, floatformat_ieee_double_big.totalsize / 8, | |
3275 | 0, "builtin_type_ieee_double_big", NULL); | |
3276 | builtin_type_ieee_double_little = | |
3277 | init_type (TYPE_CODE_FLT, floatformat_ieee_double_little.totalsize / 8, | |
3278 | 0, "builtin_type_ieee_double_little", NULL); | |
3279 | builtin_type_ieee_double_littlebyte_bigword = | |
3280 | init_type (TYPE_CODE_FLT, floatformat_ieee_double_littlebyte_bigword.totalsize / 8, | |
3281 | 0, "builtin_type_ieee_double_littlebyte_bigword", NULL); | |
3282 | builtin_type_i387_ext = | |
3283 | init_type (TYPE_CODE_FLT, floatformat_i387_ext.totalsize / 8, | |
3284 | 0, "builtin_type_i387_ext", NULL); | |
e371b258 | 3285 | TYPE_FLOATFORMAT (builtin_type_i387_ext) = &floatformat_i387_ext; |
598f52df AC |
3286 | builtin_type_m68881_ext = |
3287 | init_type (TYPE_CODE_FLT, floatformat_m68881_ext.totalsize / 8, | |
3288 | 0, "builtin_type_m68881_ext", NULL); | |
3289 | builtin_type_i960_ext = | |
3290 | init_type (TYPE_CODE_FLT, floatformat_i960_ext.totalsize / 8, | |
3291 | 0, "builtin_type_i960_ext", NULL); | |
3292 | builtin_type_m88110_ext = | |
3293 | init_type (TYPE_CODE_FLT, floatformat_m88110_ext.totalsize / 8, | |
3294 | 0, "builtin_type_m88110_ext", NULL); | |
3295 | builtin_type_m88110_harris_ext = | |
3296 | init_type (TYPE_CODE_FLT, floatformat_m88110_harris_ext.totalsize / 8, | |
3297 | 0, "builtin_type_m88110_harris_ext", NULL); | |
3298 | builtin_type_arm_ext_big = | |
3299 | init_type (TYPE_CODE_FLT, floatformat_arm_ext_big.totalsize / 8, | |
3300 | 0, "builtin_type_arm_ext_big", NULL); | |
3301 | builtin_type_arm_ext_littlebyte_bigword = | |
3302 | init_type (TYPE_CODE_FLT, floatformat_arm_ext_littlebyte_bigword.totalsize / 8, | |
3303 | 0, "builtin_type_arm_ext_littlebyte_bigword", NULL); | |
3304 | builtin_type_ia64_spill_big = | |
3305 | init_type (TYPE_CODE_FLT, floatformat_ia64_spill_big.totalsize / 8, | |
3306 | 0, "builtin_type_ia64_spill_big", NULL); | |
3307 | builtin_type_ia64_spill_little = | |
3308 | init_type (TYPE_CODE_FLT, floatformat_ia64_spill_little.totalsize / 8, | |
3309 | 0, "builtin_type_ia64_spill_little", NULL); | |
3310 | builtin_type_ia64_quad_big = | |
3311 | init_type (TYPE_CODE_FLT, floatformat_ia64_quad_big.totalsize / 8, | |
3312 | 0, "builtin_type_ia64_quad_big", NULL); | |
3313 | builtin_type_ia64_quad_little = | |
3314 | init_type (TYPE_CODE_FLT, floatformat_ia64_quad_little.totalsize / 8, | |
3315 | 0, "builtin_type_ia64_quad_little", NULL); | |
3316 | ||
5d161b24 DB |
3317 | add_show_from_set ( |
3318 | add_set_cmd ("overload", no_class, var_zinteger, (char *) &overload_debug, | |
3319 | "Set debugging of C++ overloading.\n\ | |
3320 | When enabled, ranking of the functions\n\ | |
3321 | is displayed.", &setdebuglist), | |
3322 | &showdebuglist); | |
c906108c | 3323 | } |