Commit | Line | Data |
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c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
4f2aea11 | 2 | |
ecd75fc8 | 3 | Copyright (C) 1992-2014 Free Software Foundation, Inc. |
4f2aea11 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support, using pieces from other GDB modules. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
c906108c SS |
23 | #include "bfd.h" |
24 | #include "symtab.h" | |
25 | #include "symfile.h" | |
26 | #include "objfiles.h" | |
27 | #include "gdbtypes.h" | |
28 | #include "expression.h" | |
29 | #include "language.h" | |
30 | #include "target.h" | |
31 | #include "value.h" | |
32 | #include "demangle.h" | |
33 | #include "complaints.h" | |
34 | #include "gdbcmd.h" | |
015a42b4 | 35 | #include "cp-abi.h" |
ae5a43e0 | 36 | #include "hashtab.h" |
8de20a37 | 37 | #include "cp-support.h" |
ca092b61 DE |
38 | #include "bcache.h" |
39 | #include "dwarf2loc.h" | |
80180f79 | 40 | #include "gdbcore.h" |
ac3aafc7 | 41 | |
6403aeea SW |
42 | /* Initialize BADNESS constants. */ |
43 | ||
a9d5ef47 | 44 | const struct rank LENGTH_MISMATCH_BADNESS = {100,0}; |
6403aeea | 45 | |
a9d5ef47 SW |
46 | const struct rank TOO_FEW_PARAMS_BADNESS = {100,0}; |
47 | const struct rank INCOMPATIBLE_TYPE_BADNESS = {100,0}; | |
6403aeea | 48 | |
a9d5ef47 | 49 | const struct rank EXACT_MATCH_BADNESS = {0,0}; |
6403aeea | 50 | |
a9d5ef47 SW |
51 | const struct rank INTEGER_PROMOTION_BADNESS = {1,0}; |
52 | const struct rank FLOAT_PROMOTION_BADNESS = {1,0}; | |
53 | const struct rank BASE_PTR_CONVERSION_BADNESS = {1,0}; | |
54 | const struct rank INTEGER_CONVERSION_BADNESS = {2,0}; | |
55 | const struct rank FLOAT_CONVERSION_BADNESS = {2,0}; | |
56 | const struct rank INT_FLOAT_CONVERSION_BADNESS = {2,0}; | |
57 | const struct rank VOID_PTR_CONVERSION_BADNESS = {2,0}; | |
5b4f6e25 | 58 | const struct rank BOOL_CONVERSION_BADNESS = {3,0}; |
a9d5ef47 SW |
59 | const struct rank BASE_CONVERSION_BADNESS = {2,0}; |
60 | const struct rank REFERENCE_CONVERSION_BADNESS = {2,0}; | |
da096638 | 61 | const struct rank NULL_POINTER_CONVERSION_BADNESS = {2,0}; |
a9d5ef47 | 62 | const struct rank NS_POINTER_CONVERSION_BADNESS = {10,0}; |
a451cb65 | 63 | const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS = {3,0}; |
6403aeea | 64 | |
8da61cc4 | 65 | /* Floatformat pairs. */ |
f9e9243a UW |
66 | const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN] = { |
67 | &floatformat_ieee_half_big, | |
68 | &floatformat_ieee_half_little | |
69 | }; | |
8da61cc4 DJ |
70 | const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { |
71 | &floatformat_ieee_single_big, | |
72 | &floatformat_ieee_single_little | |
73 | }; | |
74 | const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { | |
75 | &floatformat_ieee_double_big, | |
76 | &floatformat_ieee_double_little | |
77 | }; | |
78 | const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { | |
79 | &floatformat_ieee_double_big, | |
80 | &floatformat_ieee_double_littlebyte_bigword | |
81 | }; | |
82 | const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { | |
83 | &floatformat_i387_ext, | |
84 | &floatformat_i387_ext | |
85 | }; | |
86 | const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { | |
87 | &floatformat_m68881_ext, | |
88 | &floatformat_m68881_ext | |
89 | }; | |
90 | const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { | |
91 | &floatformat_arm_ext_big, | |
92 | &floatformat_arm_ext_littlebyte_bigword | |
93 | }; | |
94 | const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { | |
95 | &floatformat_ia64_spill_big, | |
96 | &floatformat_ia64_spill_little | |
97 | }; | |
98 | const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = { | |
99 | &floatformat_ia64_quad_big, | |
100 | &floatformat_ia64_quad_little | |
101 | }; | |
102 | const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { | |
103 | &floatformat_vax_f, | |
104 | &floatformat_vax_f | |
105 | }; | |
106 | const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { | |
107 | &floatformat_vax_d, | |
108 | &floatformat_vax_d | |
109 | }; | |
b14d30e1 | 110 | const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { |
f5aee5ee AM |
111 | &floatformat_ibm_long_double_big, |
112 | &floatformat_ibm_long_double_little | |
b14d30e1 | 113 | }; |
8da61cc4 | 114 | |
2873700e KS |
115 | /* Should opaque types be resolved? */ |
116 | ||
117 | static int opaque_type_resolution = 1; | |
118 | ||
119 | /* A flag to enable printing of debugging information of C++ | |
120 | overloading. */ | |
121 | ||
122 | unsigned int overload_debug = 0; | |
123 | ||
a451cb65 KS |
124 | /* A flag to enable strict type checking. */ |
125 | ||
126 | static int strict_type_checking = 1; | |
127 | ||
2873700e | 128 | /* A function to show whether opaque types are resolved. */ |
5212577a | 129 | |
920d2a44 AC |
130 | static void |
131 | show_opaque_type_resolution (struct ui_file *file, int from_tty, | |
7ba81444 MS |
132 | struct cmd_list_element *c, |
133 | const char *value) | |
920d2a44 | 134 | { |
3e43a32a MS |
135 | fprintf_filtered (file, _("Resolution of opaque struct/class/union types " |
136 | "(if set before loading symbols) is %s.\n"), | |
920d2a44 AC |
137 | value); |
138 | } | |
139 | ||
2873700e | 140 | /* A function to show whether C++ overload debugging is enabled. */ |
5212577a | 141 | |
920d2a44 AC |
142 | static void |
143 | show_overload_debug (struct ui_file *file, int from_tty, | |
144 | struct cmd_list_element *c, const char *value) | |
145 | { | |
7ba81444 MS |
146 | fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"), |
147 | value); | |
920d2a44 | 148 | } |
c906108c | 149 | |
a451cb65 KS |
150 | /* A function to show the status of strict type checking. */ |
151 | ||
152 | static void | |
153 | show_strict_type_checking (struct ui_file *file, int from_tty, | |
154 | struct cmd_list_element *c, const char *value) | |
155 | { | |
156 | fprintf_filtered (file, _("Strict type checking is %s.\n"), value); | |
157 | } | |
158 | ||
5212577a | 159 | \f |
e9bb382b UW |
160 | /* Allocate a new OBJFILE-associated type structure and fill it |
161 | with some defaults. Space for the type structure is allocated | |
162 | on the objfile's objfile_obstack. */ | |
c906108c SS |
163 | |
164 | struct type * | |
fba45db2 | 165 | alloc_type (struct objfile *objfile) |
c906108c | 166 | { |
52f0bd74 | 167 | struct type *type; |
c906108c | 168 | |
e9bb382b UW |
169 | gdb_assert (objfile != NULL); |
170 | ||
7ba81444 | 171 | /* Alloc the structure and start off with all fields zeroed. */ |
e9bb382b UW |
172 | type = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct type); |
173 | TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (&objfile->objfile_obstack, | |
174 | struct main_type); | |
175 | OBJSTAT (objfile, n_types++); | |
c906108c | 176 | |
e9bb382b UW |
177 | TYPE_OBJFILE_OWNED (type) = 1; |
178 | TYPE_OWNER (type).objfile = objfile; | |
c906108c | 179 | |
7ba81444 | 180 | /* Initialize the fields that might not be zero. */ |
c906108c SS |
181 | |
182 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
c906108c | 183 | TYPE_VPTR_FIELDNO (type) = -1; |
2fdde8f8 | 184 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
c906108c | 185 | |
c16abbde | 186 | return type; |
c906108c SS |
187 | } |
188 | ||
e9bb382b UW |
189 | /* Allocate a new GDBARCH-associated type structure and fill it |
190 | with some defaults. Space for the type structure is allocated | |
191 | on the heap. */ | |
192 | ||
193 | struct type * | |
194 | alloc_type_arch (struct gdbarch *gdbarch) | |
195 | { | |
196 | struct type *type; | |
197 | ||
198 | gdb_assert (gdbarch != NULL); | |
199 | ||
200 | /* Alloc the structure and start off with all fields zeroed. */ | |
201 | ||
41bf6aca TT |
202 | type = XCNEW (struct type); |
203 | TYPE_MAIN_TYPE (type) = XCNEW (struct main_type); | |
e9bb382b UW |
204 | |
205 | TYPE_OBJFILE_OWNED (type) = 0; | |
206 | TYPE_OWNER (type).gdbarch = gdbarch; | |
207 | ||
208 | /* Initialize the fields that might not be zero. */ | |
209 | ||
210 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
211 | TYPE_VPTR_FIELDNO (type) = -1; | |
212 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ | |
213 | ||
214 | return type; | |
215 | } | |
216 | ||
217 | /* If TYPE is objfile-associated, allocate a new type structure | |
218 | associated with the same objfile. If TYPE is gdbarch-associated, | |
219 | allocate a new type structure associated with the same gdbarch. */ | |
220 | ||
221 | struct type * | |
222 | alloc_type_copy (const struct type *type) | |
223 | { | |
224 | if (TYPE_OBJFILE_OWNED (type)) | |
225 | return alloc_type (TYPE_OWNER (type).objfile); | |
226 | else | |
227 | return alloc_type_arch (TYPE_OWNER (type).gdbarch); | |
228 | } | |
229 | ||
230 | /* If TYPE is gdbarch-associated, return that architecture. | |
231 | If TYPE is objfile-associated, return that objfile's architecture. */ | |
232 | ||
233 | struct gdbarch * | |
234 | get_type_arch (const struct type *type) | |
235 | { | |
236 | if (TYPE_OBJFILE_OWNED (type)) | |
237 | return get_objfile_arch (TYPE_OWNER (type).objfile); | |
238 | else | |
239 | return TYPE_OWNER (type).gdbarch; | |
240 | } | |
241 | ||
99ad9427 YQ |
242 | /* See gdbtypes.h. */ |
243 | ||
244 | struct type * | |
245 | get_target_type (struct type *type) | |
246 | { | |
247 | if (type != NULL) | |
248 | { | |
249 | type = TYPE_TARGET_TYPE (type); | |
250 | if (type != NULL) | |
251 | type = check_typedef (type); | |
252 | } | |
253 | ||
254 | return type; | |
255 | } | |
256 | ||
2fdde8f8 DJ |
257 | /* Alloc a new type instance structure, fill it with some defaults, |
258 | and point it at OLDTYPE. Allocate the new type instance from the | |
259 | same place as OLDTYPE. */ | |
260 | ||
261 | static struct type * | |
262 | alloc_type_instance (struct type *oldtype) | |
263 | { | |
264 | struct type *type; | |
265 | ||
266 | /* Allocate the structure. */ | |
267 | ||
e9bb382b | 268 | if (! TYPE_OBJFILE_OWNED (oldtype)) |
41bf6aca | 269 | type = XCNEW (struct type); |
2fdde8f8 | 270 | else |
1deafd4e PA |
271 | type = OBSTACK_ZALLOC (&TYPE_OBJFILE (oldtype)->objfile_obstack, |
272 | struct type); | |
273 | ||
2fdde8f8 DJ |
274 | TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype); |
275 | ||
276 | TYPE_CHAIN (type) = type; /* Chain back to itself for now. */ | |
277 | ||
c16abbde | 278 | return type; |
2fdde8f8 DJ |
279 | } |
280 | ||
281 | /* Clear all remnants of the previous type at TYPE, in preparation for | |
e9bb382b | 282 | replacing it with something else. Preserve owner information. */ |
5212577a | 283 | |
2fdde8f8 DJ |
284 | static void |
285 | smash_type (struct type *type) | |
286 | { | |
e9bb382b UW |
287 | int objfile_owned = TYPE_OBJFILE_OWNED (type); |
288 | union type_owner owner = TYPE_OWNER (type); | |
289 | ||
2fdde8f8 DJ |
290 | memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
291 | ||
e9bb382b UW |
292 | /* Restore owner information. */ |
293 | TYPE_OBJFILE_OWNED (type) = objfile_owned; | |
294 | TYPE_OWNER (type) = owner; | |
295 | ||
2fdde8f8 DJ |
296 | /* For now, delete the rings. */ |
297 | TYPE_CHAIN (type) = type; | |
298 | ||
299 | /* For now, leave the pointer/reference types alone. */ | |
300 | } | |
301 | ||
c906108c SS |
302 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
303 | to a pointer to memory where the pointer type should be stored. | |
304 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
305 | We allocate new memory if needed. */ | |
306 | ||
307 | struct type * | |
fba45db2 | 308 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 309 | { |
52f0bd74 | 310 | struct type *ntype; /* New type */ |
053cb41b | 311 | struct type *chain; |
c906108c SS |
312 | |
313 | ntype = TYPE_POINTER_TYPE (type); | |
314 | ||
c5aa993b | 315 | if (ntype) |
c906108c | 316 | { |
c5aa993b | 317 | if (typeptr == 0) |
7ba81444 MS |
318 | return ntype; /* Don't care about alloc, |
319 | and have new type. */ | |
c906108c | 320 | else if (*typeptr == 0) |
c5aa993b | 321 | { |
7ba81444 | 322 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 323 | return ntype; |
c5aa993b | 324 | } |
c906108c SS |
325 | } |
326 | ||
327 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
328 | { | |
e9bb382b | 329 | ntype = alloc_type_copy (type); |
c906108c SS |
330 | if (typeptr) |
331 | *typeptr = ntype; | |
332 | } | |
7ba81444 | 333 | else /* We have storage, but need to reset it. */ |
c906108c SS |
334 | { |
335 | ntype = *typeptr; | |
053cb41b | 336 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 337 | smash_type (ntype); |
053cb41b | 338 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
339 | } |
340 | ||
341 | TYPE_TARGET_TYPE (ntype) = type; | |
342 | TYPE_POINTER_TYPE (type) = ntype; | |
343 | ||
5212577a | 344 | /* FIXME! Assumes the machine has only one representation for pointers! */ |
c906108c | 345 | |
50810684 UW |
346 | TYPE_LENGTH (ntype) |
347 | = gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c SS |
348 | TYPE_CODE (ntype) = TYPE_CODE_PTR; |
349 | ||
67b2adb2 | 350 | /* Mark pointers as unsigned. The target converts between pointers |
76e71323 | 351 | and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and |
7ba81444 | 352 | gdbarch_address_to_pointer. */ |
876cecd0 | 353 | TYPE_UNSIGNED (ntype) = 1; |
c5aa993b | 354 | |
053cb41b JB |
355 | /* Update the length of all the other variants of this type. */ |
356 | chain = TYPE_CHAIN (ntype); | |
357 | while (chain != ntype) | |
358 | { | |
359 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
360 | chain = TYPE_CHAIN (chain); | |
361 | } | |
362 | ||
c906108c SS |
363 | return ntype; |
364 | } | |
365 | ||
366 | /* Given a type TYPE, return a type of pointers to that type. | |
367 | May need to construct such a type if this is the first use. */ | |
368 | ||
369 | struct type * | |
fba45db2 | 370 | lookup_pointer_type (struct type *type) |
c906108c | 371 | { |
c5aa993b | 372 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
373 | } |
374 | ||
7ba81444 MS |
375 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, |
376 | points to a pointer to memory where the reference type should be | |
377 | stored. If *TYPEPTR is zero, update it to point to the reference | |
378 | type we return. We allocate new memory if needed. */ | |
c906108c SS |
379 | |
380 | struct type * | |
fba45db2 | 381 | make_reference_type (struct type *type, struct type **typeptr) |
c906108c | 382 | { |
52f0bd74 | 383 | struct type *ntype; /* New type */ |
1e98b326 | 384 | struct type *chain; |
c906108c SS |
385 | |
386 | ntype = TYPE_REFERENCE_TYPE (type); | |
387 | ||
c5aa993b | 388 | if (ntype) |
c906108c | 389 | { |
c5aa993b | 390 | if (typeptr == 0) |
7ba81444 MS |
391 | return ntype; /* Don't care about alloc, |
392 | and have new type. */ | |
c906108c | 393 | else if (*typeptr == 0) |
c5aa993b | 394 | { |
7ba81444 | 395 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 396 | return ntype; |
c5aa993b | 397 | } |
c906108c SS |
398 | } |
399 | ||
400 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
401 | { | |
e9bb382b | 402 | ntype = alloc_type_copy (type); |
c906108c SS |
403 | if (typeptr) |
404 | *typeptr = ntype; | |
405 | } | |
7ba81444 | 406 | else /* We have storage, but need to reset it. */ |
c906108c SS |
407 | { |
408 | ntype = *typeptr; | |
1e98b326 | 409 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 410 | smash_type (ntype); |
1e98b326 | 411 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
412 | } |
413 | ||
414 | TYPE_TARGET_TYPE (ntype) = type; | |
415 | TYPE_REFERENCE_TYPE (type) = ntype; | |
416 | ||
7ba81444 MS |
417 | /* FIXME! Assume the machine has only one representation for |
418 | references, and that it matches the (only) representation for | |
419 | pointers! */ | |
c906108c | 420 | |
50810684 UW |
421 | TYPE_LENGTH (ntype) = |
422 | gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c | 423 | TYPE_CODE (ntype) = TYPE_CODE_REF; |
c5aa993b | 424 | |
c906108c SS |
425 | if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */ |
426 | TYPE_REFERENCE_TYPE (type) = ntype; | |
427 | ||
1e98b326 JB |
428 | /* Update the length of all the other variants of this type. */ |
429 | chain = TYPE_CHAIN (ntype); | |
430 | while (chain != ntype) | |
431 | { | |
432 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
433 | chain = TYPE_CHAIN (chain); | |
434 | } | |
435 | ||
c906108c SS |
436 | return ntype; |
437 | } | |
438 | ||
7ba81444 MS |
439 | /* Same as above, but caller doesn't care about memory allocation |
440 | details. */ | |
c906108c SS |
441 | |
442 | struct type * | |
fba45db2 | 443 | lookup_reference_type (struct type *type) |
c906108c | 444 | { |
c5aa993b | 445 | return make_reference_type (type, (struct type **) 0); |
c906108c SS |
446 | } |
447 | ||
7ba81444 MS |
448 | /* Lookup a function type that returns type TYPE. TYPEPTR, if |
449 | nonzero, points to a pointer to memory where the function type | |
450 | should be stored. If *TYPEPTR is zero, update it to point to the | |
0c8b41f1 | 451 | function type we return. We allocate new memory if needed. */ |
c906108c SS |
452 | |
453 | struct type * | |
0c8b41f1 | 454 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 455 | { |
52f0bd74 | 456 | struct type *ntype; /* New type */ |
c906108c SS |
457 | |
458 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
459 | { | |
e9bb382b | 460 | ntype = alloc_type_copy (type); |
c906108c SS |
461 | if (typeptr) |
462 | *typeptr = ntype; | |
463 | } | |
7ba81444 | 464 | else /* We have storage, but need to reset it. */ |
c906108c SS |
465 | { |
466 | ntype = *typeptr; | |
2fdde8f8 | 467 | smash_type (ntype); |
c906108c SS |
468 | } |
469 | ||
470 | TYPE_TARGET_TYPE (ntype) = type; | |
471 | ||
472 | TYPE_LENGTH (ntype) = 1; | |
473 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
c5aa993b | 474 | |
b6cdc2c1 JK |
475 | INIT_FUNC_SPECIFIC (ntype); |
476 | ||
c906108c SS |
477 | return ntype; |
478 | } | |
479 | ||
c906108c SS |
480 | /* Given a type TYPE, return a type of functions that return that type. |
481 | May need to construct such a type if this is the first use. */ | |
482 | ||
483 | struct type * | |
fba45db2 | 484 | lookup_function_type (struct type *type) |
c906108c | 485 | { |
0c8b41f1 | 486 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
487 | } |
488 | ||
71918a86 | 489 | /* Given a type TYPE and argument types, return the appropriate |
a6fb9c08 TT |
490 | function type. If the final type in PARAM_TYPES is NULL, make a |
491 | varargs function. */ | |
71918a86 TT |
492 | |
493 | struct type * | |
494 | lookup_function_type_with_arguments (struct type *type, | |
495 | int nparams, | |
496 | struct type **param_types) | |
497 | { | |
498 | struct type *fn = make_function_type (type, (struct type **) 0); | |
499 | int i; | |
500 | ||
e314d629 | 501 | if (nparams > 0) |
a6fb9c08 | 502 | { |
e314d629 TT |
503 | if (param_types[nparams - 1] == NULL) |
504 | { | |
505 | --nparams; | |
506 | TYPE_VARARGS (fn) = 1; | |
507 | } | |
508 | else if (TYPE_CODE (check_typedef (param_types[nparams - 1])) | |
509 | == TYPE_CODE_VOID) | |
510 | { | |
511 | --nparams; | |
512 | /* Caller should have ensured this. */ | |
513 | gdb_assert (nparams == 0); | |
514 | TYPE_PROTOTYPED (fn) = 1; | |
515 | } | |
a6fb9c08 TT |
516 | } |
517 | ||
71918a86 TT |
518 | TYPE_NFIELDS (fn) = nparams; |
519 | TYPE_FIELDS (fn) = TYPE_ZALLOC (fn, nparams * sizeof (struct field)); | |
520 | for (i = 0; i < nparams; ++i) | |
521 | TYPE_FIELD_TYPE (fn, i) = param_types[i]; | |
522 | ||
523 | return fn; | |
524 | } | |
525 | ||
47663de5 MS |
526 | /* Identify address space identifier by name -- |
527 | return the integer flag defined in gdbtypes.h. */ | |
5212577a DE |
528 | |
529 | int | |
50810684 | 530 | address_space_name_to_int (struct gdbarch *gdbarch, char *space_identifier) |
47663de5 | 531 | { |
8b2dbe47 | 532 | int type_flags; |
d8734c88 | 533 | |
7ba81444 | 534 | /* Check for known address space delimiters. */ |
47663de5 | 535 | if (!strcmp (space_identifier, "code")) |
876cecd0 | 536 | return TYPE_INSTANCE_FLAG_CODE_SPACE; |
47663de5 | 537 | else if (!strcmp (space_identifier, "data")) |
876cecd0 | 538 | return TYPE_INSTANCE_FLAG_DATA_SPACE; |
5f11f355 AC |
539 | else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
540 | && gdbarch_address_class_name_to_type_flags (gdbarch, | |
541 | space_identifier, | |
542 | &type_flags)) | |
8b2dbe47 | 543 | return type_flags; |
47663de5 | 544 | else |
8a3fe4f8 | 545 | error (_("Unknown address space specifier: \"%s\""), space_identifier); |
47663de5 MS |
546 | } |
547 | ||
548 | /* Identify address space identifier by integer flag as defined in | |
7ba81444 | 549 | gdbtypes.h -- return the string version of the adress space name. */ |
47663de5 | 550 | |
321432c0 | 551 | const char * |
50810684 | 552 | address_space_int_to_name (struct gdbarch *gdbarch, int space_flag) |
47663de5 | 553 | { |
876cecd0 | 554 | if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE) |
47663de5 | 555 | return "code"; |
876cecd0 | 556 | else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE) |
47663de5 | 557 | return "data"; |
876cecd0 | 558 | else if ((space_flag & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) |
5f11f355 AC |
559 | && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
560 | return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); | |
47663de5 MS |
561 | else |
562 | return NULL; | |
563 | } | |
564 | ||
2fdde8f8 | 565 | /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
ad766c0a JB |
566 | |
567 | If STORAGE is non-NULL, create the new type instance there. | |
568 | STORAGE must be in the same obstack as TYPE. */ | |
47663de5 | 569 | |
b9362cc7 | 570 | static struct type * |
2fdde8f8 DJ |
571 | make_qualified_type (struct type *type, int new_flags, |
572 | struct type *storage) | |
47663de5 MS |
573 | { |
574 | struct type *ntype; | |
575 | ||
576 | ntype = type; | |
5f61c20e JK |
577 | do |
578 | { | |
579 | if (TYPE_INSTANCE_FLAGS (ntype) == new_flags) | |
580 | return ntype; | |
581 | ntype = TYPE_CHAIN (ntype); | |
582 | } | |
583 | while (ntype != type); | |
47663de5 | 584 | |
2fdde8f8 DJ |
585 | /* Create a new type instance. */ |
586 | if (storage == NULL) | |
587 | ntype = alloc_type_instance (type); | |
588 | else | |
589 | { | |
7ba81444 MS |
590 | /* If STORAGE was provided, it had better be in the same objfile |
591 | as TYPE. Otherwise, we can't link it into TYPE's cv chain: | |
592 | if one objfile is freed and the other kept, we'd have | |
593 | dangling pointers. */ | |
ad766c0a JB |
594 | gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage)); |
595 | ||
2fdde8f8 DJ |
596 | ntype = storage; |
597 | TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); | |
598 | TYPE_CHAIN (ntype) = ntype; | |
599 | } | |
47663de5 MS |
600 | |
601 | /* Pointers or references to the original type are not relevant to | |
2fdde8f8 | 602 | the new type. */ |
47663de5 MS |
603 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
604 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
47663de5 | 605 | |
2fdde8f8 DJ |
606 | /* Chain the new qualified type to the old type. */ |
607 | TYPE_CHAIN (ntype) = TYPE_CHAIN (type); | |
608 | TYPE_CHAIN (type) = ntype; | |
609 | ||
610 | /* Now set the instance flags and return the new type. */ | |
611 | TYPE_INSTANCE_FLAGS (ntype) = new_flags; | |
47663de5 | 612 | |
ab5d3da6 KB |
613 | /* Set length of new type to that of the original type. */ |
614 | TYPE_LENGTH (ntype) = TYPE_LENGTH (type); | |
615 | ||
47663de5 MS |
616 | return ntype; |
617 | } | |
618 | ||
2fdde8f8 DJ |
619 | /* Make an address-space-delimited variant of a type -- a type that |
620 | is identical to the one supplied except that it has an address | |
621 | space attribute attached to it (such as "code" or "data"). | |
622 | ||
7ba81444 MS |
623 | The space attributes "code" and "data" are for Harvard |
624 | architectures. The address space attributes are for architectures | |
625 | which have alternately sized pointers or pointers with alternate | |
626 | representations. */ | |
2fdde8f8 DJ |
627 | |
628 | struct type * | |
629 | make_type_with_address_space (struct type *type, int space_flag) | |
630 | { | |
2fdde8f8 | 631 | int new_flags = ((TYPE_INSTANCE_FLAGS (type) |
876cecd0 TT |
632 | & ~(TYPE_INSTANCE_FLAG_CODE_SPACE |
633 | | TYPE_INSTANCE_FLAG_DATA_SPACE | |
634 | | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)) | |
2fdde8f8 DJ |
635 | | space_flag); |
636 | ||
637 | return make_qualified_type (type, new_flags, NULL); | |
638 | } | |
c906108c SS |
639 | |
640 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
641 | one supplied except that it may have const or volatile attributes | |
642 | CNST is a flag for setting the const attribute | |
643 | VOLTL is a flag for setting the volatile attribute | |
644 | TYPE is the base type whose variant we are creating. | |
c906108c | 645 | |
ad766c0a JB |
646 | If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to |
647 | storage to hold the new qualified type; *TYPEPTR and TYPE must be | |
648 | in the same objfile. Otherwise, allocate fresh memory for the new | |
649 | type whereever TYPE lives. If TYPEPTR is non-zero, set it to the | |
650 | new type we construct. */ | |
5212577a | 651 | |
c906108c | 652 | struct type * |
7ba81444 MS |
653 | make_cv_type (int cnst, int voltl, |
654 | struct type *type, | |
655 | struct type **typeptr) | |
c906108c | 656 | { |
52f0bd74 | 657 | struct type *ntype; /* New type */ |
c906108c | 658 | |
2fdde8f8 | 659 | int new_flags = (TYPE_INSTANCE_FLAGS (type) |
308d96ed MS |
660 | & ~(TYPE_INSTANCE_FLAG_CONST |
661 | | TYPE_INSTANCE_FLAG_VOLATILE)); | |
c906108c | 662 | |
c906108c | 663 | if (cnst) |
876cecd0 | 664 | new_flags |= TYPE_INSTANCE_FLAG_CONST; |
c906108c SS |
665 | |
666 | if (voltl) | |
876cecd0 | 667 | new_flags |= TYPE_INSTANCE_FLAG_VOLATILE; |
a02fd225 | 668 | |
2fdde8f8 | 669 | if (typeptr && *typeptr != NULL) |
a02fd225 | 670 | { |
ad766c0a JB |
671 | /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
672 | a C-V variant chain that threads across objfiles: if one | |
673 | objfile gets freed, then the other has a broken C-V chain. | |
674 | ||
675 | This code used to try to copy over the main type from TYPE to | |
676 | *TYPEPTR if they were in different objfiles, but that's | |
677 | wrong, too: TYPE may have a field list or member function | |
678 | lists, which refer to types of their own, etc. etc. The | |
679 | whole shebang would need to be copied over recursively; you | |
680 | can't have inter-objfile pointers. The only thing to do is | |
681 | to leave stub types as stub types, and look them up afresh by | |
682 | name each time you encounter them. */ | |
683 | gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type)); | |
2fdde8f8 DJ |
684 | } |
685 | ||
7ba81444 MS |
686 | ntype = make_qualified_type (type, new_flags, |
687 | typeptr ? *typeptr : NULL); | |
c906108c | 688 | |
2fdde8f8 DJ |
689 | if (typeptr != NULL) |
690 | *typeptr = ntype; | |
a02fd225 | 691 | |
2fdde8f8 | 692 | return ntype; |
a02fd225 | 693 | } |
c906108c | 694 | |
06d66ee9 TT |
695 | /* Make a 'restrict'-qualified version of TYPE. */ |
696 | ||
697 | struct type * | |
698 | make_restrict_type (struct type *type) | |
699 | { | |
700 | return make_qualified_type (type, | |
701 | (TYPE_INSTANCE_FLAGS (type) | |
702 | | TYPE_INSTANCE_FLAG_RESTRICT), | |
703 | NULL); | |
704 | } | |
705 | ||
2fdde8f8 DJ |
706 | /* Replace the contents of ntype with the type *type. This changes the |
707 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
708 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 709 | |
cda6c68a JB |
710 | In order to build recursive types, it's inevitable that we'll need |
711 | to update types in place --- but this sort of indiscriminate | |
712 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
713 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
714 | clear if more steps are needed. */ | |
5212577a | 715 | |
dd6bda65 DJ |
716 | void |
717 | replace_type (struct type *ntype, struct type *type) | |
718 | { | |
ab5d3da6 | 719 | struct type *chain; |
dd6bda65 | 720 | |
ad766c0a JB |
721 | /* These two types had better be in the same objfile. Otherwise, |
722 | the assignment of one type's main type structure to the other | |
723 | will produce a type with references to objects (names; field | |
724 | lists; etc.) allocated on an objfile other than its own. */ | |
725 | gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (ntype)); | |
726 | ||
2fdde8f8 | 727 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 728 | |
7ba81444 MS |
729 | /* The type length is not a part of the main type. Update it for |
730 | each type on the variant chain. */ | |
ab5d3da6 | 731 | chain = ntype; |
5f61c20e JK |
732 | do |
733 | { | |
734 | /* Assert that this element of the chain has no address-class bits | |
735 | set in its flags. Such type variants might have type lengths | |
736 | which are supposed to be different from the non-address-class | |
737 | variants. This assertion shouldn't ever be triggered because | |
738 | symbol readers which do construct address-class variants don't | |
739 | call replace_type(). */ | |
740 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
741 | ||
742 | TYPE_LENGTH (chain) = TYPE_LENGTH (type); | |
743 | chain = TYPE_CHAIN (chain); | |
744 | } | |
745 | while (ntype != chain); | |
ab5d3da6 | 746 | |
2fdde8f8 DJ |
747 | /* Assert that the two types have equivalent instance qualifiers. |
748 | This should be true for at least all of our debug readers. */ | |
749 | gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type)); | |
dd6bda65 DJ |
750 | } |
751 | ||
c906108c SS |
752 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
753 | May need to construct such a type if this is the first use. | |
754 | The TYPE is the type of the member. The DOMAIN is the type | |
755 | of the aggregate that the member belongs to. */ | |
756 | ||
757 | struct type * | |
0d5de010 | 758 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 759 | { |
52f0bd74 | 760 | struct type *mtype; |
c906108c | 761 | |
e9bb382b | 762 | mtype = alloc_type_copy (type); |
0d5de010 | 763 | smash_to_memberptr_type (mtype, domain, type); |
c16abbde | 764 | return mtype; |
c906108c SS |
765 | } |
766 | ||
0d5de010 DJ |
767 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
768 | ||
769 | struct type * | |
770 | lookup_methodptr_type (struct type *to_type) | |
771 | { | |
772 | struct type *mtype; | |
773 | ||
e9bb382b | 774 | mtype = alloc_type_copy (to_type); |
0b92b5bb | 775 | smash_to_methodptr_type (mtype, to_type); |
0d5de010 DJ |
776 | return mtype; |
777 | } | |
778 | ||
7ba81444 MS |
779 | /* Allocate a stub method whose return type is TYPE. This apparently |
780 | happens for speed of symbol reading, since parsing out the | |
781 | arguments to the method is cpu-intensive, the way we are doing it. | |
782 | So, we will fill in arguments later. This always returns a fresh | |
783 | type. */ | |
c906108c SS |
784 | |
785 | struct type * | |
fba45db2 | 786 | allocate_stub_method (struct type *type) |
c906108c SS |
787 | { |
788 | struct type *mtype; | |
789 | ||
e9bb382b UW |
790 | mtype = alloc_type_copy (type); |
791 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; | |
792 | TYPE_LENGTH (mtype) = 1; | |
793 | TYPE_STUB (mtype) = 1; | |
c906108c SS |
794 | TYPE_TARGET_TYPE (mtype) = type; |
795 | /* _DOMAIN_TYPE (mtype) = unknown yet */ | |
c16abbde | 796 | return mtype; |
c906108c SS |
797 | } |
798 | ||
729efb13 SA |
799 | /* Create a range type with a dynamic range from LOW_BOUND to |
800 | HIGH_BOUND, inclusive. See create_range_type for further details. */ | |
c906108c SS |
801 | |
802 | struct type * | |
729efb13 SA |
803 | create_range_type (struct type *result_type, struct type *index_type, |
804 | const struct dynamic_prop *low_bound, | |
805 | const struct dynamic_prop *high_bound) | |
c906108c SS |
806 | { |
807 | if (result_type == NULL) | |
e9bb382b | 808 | result_type = alloc_type_copy (index_type); |
c906108c SS |
809 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; |
810 | TYPE_TARGET_TYPE (result_type) = index_type; | |
74a9bb82 | 811 | if (TYPE_STUB (index_type)) |
876cecd0 | 812 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c SS |
813 | else |
814 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
729efb13 | 815 | |
43bbcdc2 PH |
816 | TYPE_RANGE_DATA (result_type) = (struct range_bounds *) |
817 | TYPE_ZALLOC (result_type, sizeof (struct range_bounds)); | |
729efb13 SA |
818 | TYPE_RANGE_DATA (result_type)->low = *low_bound; |
819 | TYPE_RANGE_DATA (result_type)->high = *high_bound; | |
c906108c | 820 | |
729efb13 | 821 | if (low_bound->kind == PROP_CONST && low_bound->data.const_val >= 0) |
876cecd0 | 822 | TYPE_UNSIGNED (result_type) = 1; |
c906108c | 823 | |
262452ec | 824 | return result_type; |
c906108c SS |
825 | } |
826 | ||
729efb13 SA |
827 | /* Create a range type using either a blank type supplied in |
828 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
829 | INDEX_TYPE. | |
830 | ||
831 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND | |
832 | to HIGH_BOUND, inclusive. | |
833 | ||
834 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
835 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
836 | ||
837 | struct type * | |
838 | create_static_range_type (struct type *result_type, struct type *index_type, | |
839 | LONGEST low_bound, LONGEST high_bound) | |
840 | { | |
841 | struct dynamic_prop low, high; | |
842 | ||
843 | low.kind = PROP_CONST; | |
844 | low.data.const_val = low_bound; | |
845 | ||
846 | high.kind = PROP_CONST; | |
847 | high.data.const_val = high_bound; | |
848 | ||
849 | result_type = create_range_type (result_type, index_type, &low, &high); | |
850 | ||
851 | return result_type; | |
852 | } | |
853 | ||
80180f79 SA |
854 | /* Predicate tests whether BOUNDS are static. Returns 1 if all bounds values |
855 | are static, otherwise returns 0. */ | |
856 | ||
857 | static int | |
858 | has_static_range (const struct range_bounds *bounds) | |
859 | { | |
860 | return (bounds->low.kind == PROP_CONST | |
861 | && bounds->high.kind == PROP_CONST); | |
862 | } | |
863 | ||
864 | ||
7ba81444 MS |
865 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
866 | TYPE. Return 1 if type is a range type, 0 if it is discrete (and | |
867 | bounds will fit in LONGEST), or -1 otherwise. */ | |
c906108c SS |
868 | |
869 | int | |
fba45db2 | 870 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c SS |
871 | { |
872 | CHECK_TYPEDEF (type); | |
873 | switch (TYPE_CODE (type)) | |
874 | { | |
875 | case TYPE_CODE_RANGE: | |
876 | *lowp = TYPE_LOW_BOUND (type); | |
877 | *highp = TYPE_HIGH_BOUND (type); | |
878 | return 1; | |
879 | case TYPE_CODE_ENUM: | |
880 | if (TYPE_NFIELDS (type) > 0) | |
881 | { | |
882 | /* The enums may not be sorted by value, so search all | |
0963b4bd | 883 | entries. */ |
c906108c SS |
884 | int i; |
885 | ||
14e75d8e | 886 | *lowp = *highp = TYPE_FIELD_ENUMVAL (type, 0); |
c906108c SS |
887 | for (i = 0; i < TYPE_NFIELDS (type); i++) |
888 | { | |
14e75d8e JK |
889 | if (TYPE_FIELD_ENUMVAL (type, i) < *lowp) |
890 | *lowp = TYPE_FIELD_ENUMVAL (type, i); | |
891 | if (TYPE_FIELD_ENUMVAL (type, i) > *highp) | |
892 | *highp = TYPE_FIELD_ENUMVAL (type, i); | |
c906108c SS |
893 | } |
894 | ||
7ba81444 | 895 | /* Set unsigned indicator if warranted. */ |
c5aa993b | 896 | if (*lowp >= 0) |
c906108c | 897 | { |
876cecd0 | 898 | TYPE_UNSIGNED (type) = 1; |
c906108c SS |
899 | } |
900 | } | |
901 | else | |
902 | { | |
903 | *lowp = 0; | |
904 | *highp = -1; | |
905 | } | |
906 | return 0; | |
907 | case TYPE_CODE_BOOL: | |
908 | *lowp = 0; | |
909 | *highp = 1; | |
910 | return 0; | |
911 | case TYPE_CODE_INT: | |
c5aa993b | 912 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
913 | return -1; |
914 | if (!TYPE_UNSIGNED (type)) | |
915 | { | |
c5aa993b | 916 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
917 | *highp = -*lowp - 1; |
918 | return 0; | |
919 | } | |
7ba81444 | 920 | /* ... fall through for unsigned ints ... */ |
c906108c SS |
921 | case TYPE_CODE_CHAR: |
922 | *lowp = 0; | |
923 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 | 924 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
7ba81444 | 925 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
c906108c SS |
926 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
927 | *highp = (*highp - 1) | *highp; | |
928 | return 0; | |
929 | default: | |
930 | return -1; | |
931 | } | |
932 | } | |
933 | ||
dbc98a8b KW |
934 | /* Assuming TYPE is a simple, non-empty array type, compute its upper |
935 | and lower bound. Save the low bound into LOW_BOUND if not NULL. | |
936 | Save the high bound into HIGH_BOUND if not NULL. | |
937 | ||
0963b4bd | 938 | Return 1 if the operation was successful. Return zero otherwise, |
dbc98a8b KW |
939 | in which case the values of LOW_BOUND and HIGH_BOUNDS are unmodified. |
940 | ||
941 | We now simply use get_discrete_bounds call to get the values | |
942 | of the low and high bounds. | |
943 | get_discrete_bounds can return three values: | |
944 | 1, meaning that index is a range, | |
945 | 0, meaning that index is a discrete type, | |
946 | or -1 for failure. */ | |
947 | ||
948 | int | |
949 | get_array_bounds (struct type *type, LONGEST *low_bound, LONGEST *high_bound) | |
950 | { | |
951 | struct type *index = TYPE_INDEX_TYPE (type); | |
952 | LONGEST low = 0; | |
953 | LONGEST high = 0; | |
954 | int res; | |
955 | ||
956 | if (index == NULL) | |
957 | return 0; | |
958 | ||
959 | res = get_discrete_bounds (index, &low, &high); | |
960 | if (res == -1) | |
961 | return 0; | |
962 | ||
963 | /* Check if the array bounds are undefined. */ | |
964 | if (res == 1 | |
965 | && ((low_bound && TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED (type)) | |
966 | || (high_bound && TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type)))) | |
967 | return 0; | |
968 | ||
969 | if (low_bound) | |
970 | *low_bound = low; | |
971 | ||
972 | if (high_bound) | |
973 | *high_bound = high; | |
974 | ||
975 | return 1; | |
976 | } | |
977 | ||
7ba81444 MS |
978 | /* Create an array type using either a blank type supplied in |
979 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
980 | RANGE_TYPE. | |
c906108c SS |
981 | |
982 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
983 | RANGE_TYPE. | |
984 | ||
dc53a7ad JB |
985 | If BIT_STRIDE is not zero, build a packed array type whose element |
986 | size is BIT_STRIDE. Otherwise, ignore this parameter. | |
987 | ||
7ba81444 MS |
988 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
989 | sure it is TYPE_CODE_UNDEF before we bash it into an array | |
990 | type? */ | |
c906108c SS |
991 | |
992 | struct type * | |
dc53a7ad JB |
993 | create_array_type_with_stride (struct type *result_type, |
994 | struct type *element_type, | |
995 | struct type *range_type, | |
996 | unsigned int bit_stride) | |
c906108c | 997 | { |
c906108c | 998 | if (result_type == NULL) |
e9bb382b UW |
999 | result_type = alloc_type_copy (range_type); |
1000 | ||
c906108c SS |
1001 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
1002 | TYPE_TARGET_TYPE (result_type) = element_type; | |
80180f79 SA |
1003 | if (has_static_range (TYPE_RANGE_DATA (range_type))) |
1004 | { | |
1005 | LONGEST low_bound, high_bound; | |
1006 | ||
1007 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
1008 | low_bound = high_bound = 0; | |
1009 | CHECK_TYPEDEF (element_type); | |
1010 | /* Be careful when setting the array length. Ada arrays can be | |
1011 | empty arrays with the high_bound being smaller than the low_bound. | |
1012 | In such cases, the array length should be zero. */ | |
1013 | if (high_bound < low_bound) | |
1014 | TYPE_LENGTH (result_type) = 0; | |
1015 | else if (bit_stride > 0) | |
1016 | TYPE_LENGTH (result_type) = | |
1017 | (bit_stride * (high_bound - low_bound + 1) + 7) / 8; | |
1018 | else | |
1019 | TYPE_LENGTH (result_type) = | |
1020 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
1021 | } | |
ab0d6e0d | 1022 | else |
80180f79 SA |
1023 | { |
1024 | /* This type is dynamic and its length needs to be computed | |
1025 | on demand. In the meantime, avoid leaving the TYPE_LENGTH | |
1026 | undefined by setting it to zero. Although we are not expected | |
1027 | to trust TYPE_LENGTH in this case, setting the size to zero | |
1028 | allows us to avoid allocating objects of random sizes in case | |
1029 | we accidently do. */ | |
1030 | TYPE_LENGTH (result_type) = 0; | |
1031 | } | |
1032 | ||
c906108c SS |
1033 | TYPE_NFIELDS (result_type) = 1; |
1034 | TYPE_FIELDS (result_type) = | |
1deafd4e | 1035 | (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); |
262452ec | 1036 | TYPE_INDEX_TYPE (result_type) = range_type; |
c906108c | 1037 | TYPE_VPTR_FIELDNO (result_type) = -1; |
dc53a7ad JB |
1038 | if (bit_stride > 0) |
1039 | TYPE_FIELD_BITSIZE (result_type, 0) = bit_stride; | |
c906108c | 1040 | |
0963b4bd | 1041 | /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays. */ |
c906108c | 1042 | if (TYPE_LENGTH (result_type) == 0) |
876cecd0 | 1043 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c | 1044 | |
c16abbde | 1045 | return result_type; |
c906108c SS |
1046 | } |
1047 | ||
dc53a7ad JB |
1048 | /* Same as create_array_type_with_stride but with no bit_stride |
1049 | (BIT_STRIDE = 0), thus building an unpacked array. */ | |
1050 | ||
1051 | struct type * | |
1052 | create_array_type (struct type *result_type, | |
1053 | struct type *element_type, | |
1054 | struct type *range_type) | |
1055 | { | |
1056 | return create_array_type_with_stride (result_type, element_type, | |
1057 | range_type, 0); | |
1058 | } | |
1059 | ||
e3506a9f UW |
1060 | struct type * |
1061 | lookup_array_range_type (struct type *element_type, | |
63375b74 | 1062 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f | 1063 | { |
50810684 | 1064 | struct gdbarch *gdbarch = get_type_arch (element_type); |
e3506a9f UW |
1065 | struct type *index_type = builtin_type (gdbarch)->builtin_int; |
1066 | struct type *range_type | |
0c9c3474 | 1067 | = create_static_range_type (NULL, index_type, low_bound, high_bound); |
d8734c88 | 1068 | |
e3506a9f UW |
1069 | return create_array_type (NULL, element_type, range_type); |
1070 | } | |
1071 | ||
7ba81444 MS |
1072 | /* Create a string type using either a blank type supplied in |
1073 | RESULT_TYPE, or creating a new type. String types are similar | |
1074 | enough to array of char types that we can use create_array_type to | |
1075 | build the basic type and then bash it into a string type. | |
c906108c SS |
1076 | |
1077 | For fixed length strings, the range type contains 0 as the lower | |
1078 | bound and the length of the string minus one as the upper bound. | |
1079 | ||
7ba81444 MS |
1080 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1081 | sure it is TYPE_CODE_UNDEF before we bash it into a string | |
1082 | type? */ | |
c906108c SS |
1083 | |
1084 | struct type * | |
3b7538c0 UW |
1085 | create_string_type (struct type *result_type, |
1086 | struct type *string_char_type, | |
7ba81444 | 1087 | struct type *range_type) |
c906108c SS |
1088 | { |
1089 | result_type = create_array_type (result_type, | |
f290d38e | 1090 | string_char_type, |
c906108c SS |
1091 | range_type); |
1092 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
c16abbde | 1093 | return result_type; |
c906108c SS |
1094 | } |
1095 | ||
e3506a9f UW |
1096 | struct type * |
1097 | lookup_string_range_type (struct type *string_char_type, | |
63375b74 | 1098 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f UW |
1099 | { |
1100 | struct type *result_type; | |
d8734c88 | 1101 | |
e3506a9f UW |
1102 | result_type = lookup_array_range_type (string_char_type, |
1103 | low_bound, high_bound); | |
1104 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
1105 | return result_type; | |
1106 | } | |
1107 | ||
c906108c | 1108 | struct type * |
fba45db2 | 1109 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c | 1110 | { |
c906108c | 1111 | if (result_type == NULL) |
e9bb382b UW |
1112 | result_type = alloc_type_copy (domain_type); |
1113 | ||
c906108c SS |
1114 | TYPE_CODE (result_type) = TYPE_CODE_SET; |
1115 | TYPE_NFIELDS (result_type) = 1; | |
1deafd4e | 1116 | TYPE_FIELDS (result_type) = TYPE_ZALLOC (result_type, sizeof (struct field)); |
c906108c | 1117 | |
74a9bb82 | 1118 | if (!TYPE_STUB (domain_type)) |
c906108c | 1119 | { |
f9780d5b | 1120 | LONGEST low_bound, high_bound, bit_length; |
d8734c88 | 1121 | |
c906108c SS |
1122 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
1123 | low_bound = high_bound = 0; | |
1124 | bit_length = high_bound - low_bound + 1; | |
1125 | TYPE_LENGTH (result_type) | |
1126 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
f9780d5b | 1127 | if (low_bound >= 0) |
876cecd0 | 1128 | TYPE_UNSIGNED (result_type) = 1; |
c906108c SS |
1129 | } |
1130 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
1131 | ||
c16abbde | 1132 | return result_type; |
c906108c SS |
1133 | } |
1134 | ||
ea37ba09 DJ |
1135 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
1136 | and any array types nested inside it. */ | |
1137 | ||
1138 | void | |
1139 | make_vector_type (struct type *array_type) | |
1140 | { | |
1141 | struct type *inner_array, *elt_type; | |
1142 | int flags; | |
1143 | ||
1144 | /* Find the innermost array type, in case the array is | |
1145 | multi-dimensional. */ | |
1146 | inner_array = array_type; | |
1147 | while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY) | |
1148 | inner_array = TYPE_TARGET_TYPE (inner_array); | |
1149 | ||
1150 | elt_type = TYPE_TARGET_TYPE (inner_array); | |
1151 | if (TYPE_CODE (elt_type) == TYPE_CODE_INT) | |
1152 | { | |
2844d6b5 | 1153 | flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_INSTANCE_FLAG_NOTTEXT; |
ea37ba09 DJ |
1154 | elt_type = make_qualified_type (elt_type, flags, NULL); |
1155 | TYPE_TARGET_TYPE (inner_array) = elt_type; | |
1156 | } | |
1157 | ||
876cecd0 | 1158 | TYPE_VECTOR (array_type) = 1; |
ea37ba09 DJ |
1159 | } |
1160 | ||
794ac428 | 1161 | struct type * |
ac3aafc7 EZ |
1162 | init_vector_type (struct type *elt_type, int n) |
1163 | { | |
1164 | struct type *array_type; | |
d8734c88 | 1165 | |
e3506a9f | 1166 | array_type = lookup_array_range_type (elt_type, 0, n - 1); |
ea37ba09 | 1167 | make_vector_type (array_type); |
ac3aafc7 EZ |
1168 | return array_type; |
1169 | } | |
1170 | ||
0d5de010 DJ |
1171 | /* Smash TYPE to be a type of pointers to members of DOMAIN with type |
1172 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a | |
1173 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
1174 | TYPE doesn't include the offset (that's the value of the MEMBER | |
1175 | itself), but does include the structure type into which it points | |
1176 | (for some reason). | |
c906108c | 1177 | |
7ba81444 MS |
1178 | When "smashing" the type, we preserve the objfile that the old type |
1179 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1180 | allocated. */ |
1181 | ||
1182 | void | |
0d5de010 DJ |
1183 | smash_to_memberptr_type (struct type *type, struct type *domain, |
1184 | struct type *to_type) | |
c906108c | 1185 | { |
2fdde8f8 | 1186 | smash_type (type); |
c906108c SS |
1187 | TYPE_TARGET_TYPE (type) = to_type; |
1188 | TYPE_DOMAIN_TYPE (type) = domain; | |
0d5de010 DJ |
1189 | /* Assume that a data member pointer is the same size as a normal |
1190 | pointer. */ | |
50810684 UW |
1191 | TYPE_LENGTH (type) |
1192 | = gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT; | |
0d5de010 | 1193 | TYPE_CODE (type) = TYPE_CODE_MEMBERPTR; |
c906108c SS |
1194 | } |
1195 | ||
0b92b5bb TT |
1196 | /* Smash TYPE to be a type of pointer to methods type TO_TYPE. |
1197 | ||
1198 | When "smashing" the type, we preserve the objfile that the old type | |
1199 | pointed to, since we aren't changing where the type is actually | |
1200 | allocated. */ | |
1201 | ||
1202 | void | |
1203 | smash_to_methodptr_type (struct type *type, struct type *to_type) | |
1204 | { | |
1205 | smash_type (type); | |
1206 | TYPE_TARGET_TYPE (type) = to_type; | |
1207 | TYPE_DOMAIN_TYPE (type) = TYPE_DOMAIN_TYPE (to_type); | |
1208 | TYPE_LENGTH (type) = cplus_method_ptr_size (to_type); | |
1209 | TYPE_CODE (type) = TYPE_CODE_METHODPTR; | |
1210 | } | |
1211 | ||
c906108c SS |
1212 | /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE. |
1213 | METHOD just means `function that gets an extra "this" argument'. | |
1214 | ||
7ba81444 MS |
1215 | When "smashing" the type, we preserve the objfile that the old type |
1216 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1217 | allocated. */ |
1218 | ||
1219 | void | |
fba45db2 | 1220 | smash_to_method_type (struct type *type, struct type *domain, |
ad2f7632 DJ |
1221 | struct type *to_type, struct field *args, |
1222 | int nargs, int varargs) | |
c906108c | 1223 | { |
2fdde8f8 | 1224 | smash_type (type); |
c906108c SS |
1225 | TYPE_TARGET_TYPE (type) = to_type; |
1226 | TYPE_DOMAIN_TYPE (type) = domain; | |
ad2f7632 DJ |
1227 | TYPE_FIELDS (type) = args; |
1228 | TYPE_NFIELDS (type) = nargs; | |
1229 | if (varargs) | |
876cecd0 | 1230 | TYPE_VARARGS (type) = 1; |
c906108c SS |
1231 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
1232 | TYPE_CODE (type) = TYPE_CODE_METHOD; | |
1233 | } | |
1234 | ||
1235 | /* Return a typename for a struct/union/enum type without "struct ", | |
1236 | "union ", or "enum ". If the type has a NULL name, return NULL. */ | |
1237 | ||
0d5cff50 | 1238 | const char * |
aa1ee363 | 1239 | type_name_no_tag (const struct type *type) |
c906108c SS |
1240 | { |
1241 | if (TYPE_TAG_NAME (type) != NULL) | |
1242 | return TYPE_TAG_NAME (type); | |
1243 | ||
7ba81444 MS |
1244 | /* Is there code which expects this to return the name if there is |
1245 | no tag name? My guess is that this is mainly used for C++ in | |
1246 | cases where the two will always be the same. */ | |
c906108c SS |
1247 | return TYPE_NAME (type); |
1248 | } | |
1249 | ||
d8228535 JK |
1250 | /* A wrapper of type_name_no_tag which calls error if the type is anonymous. |
1251 | Since GCC PR debug/47510 DWARF provides associated information to detect the | |
1252 | anonymous class linkage name from its typedef. | |
1253 | ||
1254 | Parameter TYPE should not yet have CHECK_TYPEDEF applied, this function will | |
1255 | apply it itself. */ | |
1256 | ||
1257 | const char * | |
1258 | type_name_no_tag_or_error (struct type *type) | |
1259 | { | |
1260 | struct type *saved_type = type; | |
1261 | const char *name; | |
1262 | struct objfile *objfile; | |
1263 | ||
1264 | CHECK_TYPEDEF (type); | |
1265 | ||
1266 | name = type_name_no_tag (type); | |
1267 | if (name != NULL) | |
1268 | return name; | |
1269 | ||
1270 | name = type_name_no_tag (saved_type); | |
1271 | objfile = TYPE_OBJFILE (saved_type); | |
1272 | error (_("Invalid anonymous type %s [in module %s], GCC PR debug/47510 bug?"), | |
4262abfb JK |
1273 | name ? name : "<anonymous>", |
1274 | objfile ? objfile_name (objfile) : "<arch>"); | |
d8228535 JK |
1275 | } |
1276 | ||
7ba81444 MS |
1277 | /* Lookup a typedef or primitive type named NAME, visible in lexical |
1278 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
1279 | suitably defined. */ | |
c906108c SS |
1280 | |
1281 | struct type * | |
e6c014f2 | 1282 | lookup_typename (const struct language_defn *language, |
ddd49eee | 1283 | struct gdbarch *gdbarch, const char *name, |
34eaf542 | 1284 | const struct block *block, int noerr) |
c906108c | 1285 | { |
52f0bd74 | 1286 | struct symbol *sym; |
659c9f3a | 1287 | struct type *type; |
c906108c | 1288 | |
774b6a14 | 1289 | sym = lookup_symbol (name, block, VAR_DOMAIN, 0); |
c51fe631 DE |
1290 | if (sym != NULL && SYMBOL_CLASS (sym) == LOC_TYPEDEF) |
1291 | return SYMBOL_TYPE (sym); | |
1292 | ||
659c9f3a DE |
1293 | type = language_lookup_primitive_type_by_name (language, gdbarch, name); |
1294 | if (type) | |
1295 | return type; | |
c51fe631 DE |
1296 | |
1297 | if (noerr) | |
1298 | return NULL; | |
1299 | error (_("No type named %s."), name); | |
c906108c SS |
1300 | } |
1301 | ||
1302 | struct type * | |
e6c014f2 | 1303 | lookup_unsigned_typename (const struct language_defn *language, |
0d5cff50 | 1304 | struct gdbarch *gdbarch, const char *name) |
c906108c SS |
1305 | { |
1306 | char *uns = alloca (strlen (name) + 10); | |
1307 | ||
1308 | strcpy (uns, "unsigned "); | |
1309 | strcpy (uns + 9, name); | |
e6c014f2 | 1310 | return lookup_typename (language, gdbarch, uns, (struct block *) NULL, 0); |
c906108c SS |
1311 | } |
1312 | ||
1313 | struct type * | |
e6c014f2 | 1314 | lookup_signed_typename (const struct language_defn *language, |
0d5cff50 | 1315 | struct gdbarch *gdbarch, const char *name) |
c906108c SS |
1316 | { |
1317 | struct type *t; | |
1318 | char *uns = alloca (strlen (name) + 8); | |
1319 | ||
1320 | strcpy (uns, "signed "); | |
1321 | strcpy (uns + 7, name); | |
e6c014f2 | 1322 | t = lookup_typename (language, gdbarch, uns, (struct block *) NULL, 1); |
7ba81444 | 1323 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
c906108c SS |
1324 | if (t != NULL) |
1325 | return t; | |
e6c014f2 | 1326 | return lookup_typename (language, gdbarch, name, (struct block *) NULL, 0); |
c906108c SS |
1327 | } |
1328 | ||
1329 | /* Lookup a structure type named "struct NAME", | |
1330 | visible in lexical block BLOCK. */ | |
1331 | ||
1332 | struct type * | |
270140bd | 1333 | lookup_struct (const char *name, const struct block *block) |
c906108c | 1334 | { |
52f0bd74 | 1335 | struct symbol *sym; |
c906108c | 1336 | |
2570f2b7 | 1337 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1338 | |
1339 | if (sym == NULL) | |
1340 | { | |
8a3fe4f8 | 1341 | error (_("No struct type named %s."), name); |
c906108c SS |
1342 | } |
1343 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1344 | { | |
7ba81444 MS |
1345 | error (_("This context has class, union or enum %s, not a struct."), |
1346 | name); | |
c906108c SS |
1347 | } |
1348 | return (SYMBOL_TYPE (sym)); | |
1349 | } | |
1350 | ||
1351 | /* Lookup a union type named "union NAME", | |
1352 | visible in lexical block BLOCK. */ | |
1353 | ||
1354 | struct type * | |
270140bd | 1355 | lookup_union (const char *name, const struct block *block) |
c906108c | 1356 | { |
52f0bd74 | 1357 | struct symbol *sym; |
c5aa993b | 1358 | struct type *t; |
c906108c | 1359 | |
2570f2b7 | 1360 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1361 | |
1362 | if (sym == NULL) | |
8a3fe4f8 | 1363 | error (_("No union type named %s."), name); |
c906108c | 1364 | |
c5aa993b | 1365 | t = SYMBOL_TYPE (sym); |
c906108c SS |
1366 | |
1367 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
c16abbde | 1368 | return t; |
c906108c | 1369 | |
7ba81444 MS |
1370 | /* If we get here, it's not a union. */ |
1371 | error (_("This context has class, struct or enum %s, not a union."), | |
1372 | name); | |
c906108c SS |
1373 | } |
1374 | ||
c906108c SS |
1375 | /* Lookup an enum type named "enum NAME", |
1376 | visible in lexical block BLOCK. */ | |
1377 | ||
1378 | struct type * | |
270140bd | 1379 | lookup_enum (const char *name, const struct block *block) |
c906108c | 1380 | { |
52f0bd74 | 1381 | struct symbol *sym; |
c906108c | 1382 | |
2570f2b7 | 1383 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1384 | if (sym == NULL) |
1385 | { | |
8a3fe4f8 | 1386 | error (_("No enum type named %s."), name); |
c906108c SS |
1387 | } |
1388 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
1389 | { | |
7ba81444 MS |
1390 | error (_("This context has class, struct or union %s, not an enum."), |
1391 | name); | |
c906108c SS |
1392 | } |
1393 | return (SYMBOL_TYPE (sym)); | |
1394 | } | |
1395 | ||
1396 | /* Lookup a template type named "template NAME<TYPE>", | |
1397 | visible in lexical block BLOCK. */ | |
1398 | ||
1399 | struct type * | |
7ba81444 | 1400 | lookup_template_type (char *name, struct type *type, |
270140bd | 1401 | const struct block *block) |
c906108c SS |
1402 | { |
1403 | struct symbol *sym; | |
7ba81444 MS |
1404 | char *nam = (char *) |
1405 | alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4); | |
d8734c88 | 1406 | |
c906108c SS |
1407 | strcpy (nam, name); |
1408 | strcat (nam, "<"); | |
0004e5a2 | 1409 | strcat (nam, TYPE_NAME (type)); |
0963b4bd | 1410 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1411 | |
2570f2b7 | 1412 | sym = lookup_symbol (nam, block, VAR_DOMAIN, 0); |
c906108c SS |
1413 | |
1414 | if (sym == NULL) | |
1415 | { | |
8a3fe4f8 | 1416 | error (_("No template type named %s."), name); |
c906108c SS |
1417 | } |
1418 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1419 | { | |
7ba81444 MS |
1420 | error (_("This context has class, union or enum %s, not a struct."), |
1421 | name); | |
c906108c SS |
1422 | } |
1423 | return (SYMBOL_TYPE (sym)); | |
1424 | } | |
1425 | ||
7ba81444 MS |
1426 | /* Given a type TYPE, lookup the type of the component of type named |
1427 | NAME. | |
c906108c | 1428 | |
7ba81444 MS |
1429 | TYPE can be either a struct or union, or a pointer or reference to |
1430 | a struct or union. If it is a pointer or reference, its target | |
1431 | type is automatically used. Thus '.' and '->' are interchangable, | |
1432 | as specified for the definitions of the expression element types | |
1433 | STRUCTOP_STRUCT and STRUCTOP_PTR. | |
c906108c SS |
1434 | |
1435 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
1436 | If NAME is the name of a baseclass type, return that type. */ | |
1437 | ||
1438 | struct type * | |
d7561cbb | 1439 | lookup_struct_elt_type (struct type *type, const char *name, int noerr) |
c906108c SS |
1440 | { |
1441 | int i; | |
c92817ce | 1442 | char *typename; |
c906108c SS |
1443 | |
1444 | for (;;) | |
1445 | { | |
1446 | CHECK_TYPEDEF (type); | |
1447 | if (TYPE_CODE (type) != TYPE_CODE_PTR | |
1448 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1449 | break; | |
1450 | type = TYPE_TARGET_TYPE (type); | |
1451 | } | |
1452 | ||
687d6395 MS |
1453 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
1454 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
c906108c | 1455 | { |
c92817ce TT |
1456 | typename = type_to_string (type); |
1457 | make_cleanup (xfree, typename); | |
1458 | error (_("Type %s is not a structure or union type."), typename); | |
c906108c SS |
1459 | } |
1460 | ||
1461 | #if 0 | |
7ba81444 MS |
1462 | /* FIXME: This change put in by Michael seems incorrect for the case |
1463 | where the structure tag name is the same as the member name. | |
0963b4bd | 1464 | I.e. when doing "ptype bell->bar" for "struct foo { int bar; int |
7ba81444 | 1465 | foo; } bell;" Disabled by fnf. */ |
c906108c SS |
1466 | { |
1467 | char *typename; | |
1468 | ||
1469 | typename = type_name_no_tag (type); | |
762f08a3 | 1470 | if (typename != NULL && strcmp (typename, name) == 0) |
c906108c SS |
1471 | return type; |
1472 | } | |
1473 | #endif | |
1474 | ||
1475 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1476 | { | |
0d5cff50 | 1477 | const char *t_field_name = TYPE_FIELD_NAME (type, i); |
c906108c | 1478 | |
db577aea | 1479 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c SS |
1480 | { |
1481 | return TYPE_FIELD_TYPE (type, i); | |
1482 | } | |
f5a010c0 PM |
1483 | else if (!t_field_name || *t_field_name == '\0') |
1484 | { | |
d8734c88 MS |
1485 | struct type *subtype |
1486 | = lookup_struct_elt_type (TYPE_FIELD_TYPE (type, i), name, 1); | |
1487 | ||
f5a010c0 PM |
1488 | if (subtype != NULL) |
1489 | return subtype; | |
1490 | } | |
c906108c SS |
1491 | } |
1492 | ||
1493 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1494 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1495 | { | |
1496 | struct type *t; | |
1497 | ||
9733fc94 | 1498 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 1); |
c906108c SS |
1499 | if (t != NULL) |
1500 | { | |
1501 | return t; | |
1502 | } | |
1503 | } | |
1504 | ||
1505 | if (noerr) | |
1506 | { | |
1507 | return NULL; | |
1508 | } | |
c5aa993b | 1509 | |
c92817ce TT |
1510 | typename = type_to_string (type); |
1511 | make_cleanup (xfree, typename); | |
1512 | error (_("Type %s has no component named %s."), typename, name); | |
c906108c SS |
1513 | } |
1514 | ||
ed3ef339 DE |
1515 | /* Store in *MAX the largest number representable by unsigned integer type |
1516 | TYPE. */ | |
1517 | ||
1518 | void | |
1519 | get_unsigned_type_max (struct type *type, ULONGEST *max) | |
1520 | { | |
1521 | unsigned int n; | |
1522 | ||
1523 | CHECK_TYPEDEF (type); | |
1524 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && TYPE_UNSIGNED (type)); | |
1525 | gdb_assert (TYPE_LENGTH (type) <= sizeof (ULONGEST)); | |
1526 | ||
1527 | /* Written this way to avoid overflow. */ | |
1528 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1529 | *max = ((((ULONGEST) 1 << (n - 1)) - 1) << 1) | 1; | |
1530 | } | |
1531 | ||
1532 | /* Store in *MIN, *MAX the smallest and largest numbers representable by | |
1533 | signed integer type TYPE. */ | |
1534 | ||
1535 | void | |
1536 | get_signed_type_minmax (struct type *type, LONGEST *min, LONGEST *max) | |
1537 | { | |
1538 | unsigned int n; | |
1539 | ||
1540 | CHECK_TYPEDEF (type); | |
1541 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && !TYPE_UNSIGNED (type)); | |
1542 | gdb_assert (TYPE_LENGTH (type) <= sizeof (LONGEST)); | |
1543 | ||
1544 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1545 | *min = -((ULONGEST) 1 << (n - 1)); | |
1546 | *max = ((ULONGEST) 1 << (n - 1)) - 1; | |
1547 | } | |
1548 | ||
81fe8080 DE |
1549 | /* Lookup the vptr basetype/fieldno values for TYPE. |
1550 | If found store vptr_basetype in *BASETYPEP if non-NULL, and return | |
1551 | vptr_fieldno. Also, if found and basetype is from the same objfile, | |
1552 | cache the results. | |
1553 | If not found, return -1 and ignore BASETYPEP. | |
1554 | Callers should be aware that in some cases (for example, | |
c906108c | 1555 | the type or one of its baseclasses is a stub type and we are |
d48cc9dd DJ |
1556 | debugging a .o file, or the compiler uses DWARF-2 and is not GCC), |
1557 | this function will not be able to find the | |
7ba81444 | 1558 | virtual function table pointer, and vptr_fieldno will remain -1 and |
81fe8080 | 1559 | vptr_basetype will remain NULL or incomplete. */ |
c906108c | 1560 | |
81fe8080 DE |
1561 | int |
1562 | get_vptr_fieldno (struct type *type, struct type **basetypep) | |
c906108c SS |
1563 | { |
1564 | CHECK_TYPEDEF (type); | |
1565 | ||
1566 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1567 | { | |
1568 | int i; | |
1569 | ||
7ba81444 MS |
1570 | /* We must start at zero in case the first (and only) baseclass |
1571 | is virtual (and hence we cannot share the table pointer). */ | |
c906108c SS |
1572 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1573 | { | |
81fe8080 DE |
1574 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
1575 | int fieldno; | |
1576 | struct type *basetype; | |
1577 | ||
1578 | fieldno = get_vptr_fieldno (baseclass, &basetype); | |
1579 | if (fieldno >= 0) | |
c906108c | 1580 | { |
81fe8080 | 1581 | /* If the type comes from a different objfile we can't cache |
0963b4bd | 1582 | it, it may have a different lifetime. PR 2384 */ |
5ef73790 | 1583 | if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype)) |
81fe8080 DE |
1584 | { |
1585 | TYPE_VPTR_FIELDNO (type) = fieldno; | |
1586 | TYPE_VPTR_BASETYPE (type) = basetype; | |
1587 | } | |
1588 | if (basetypep) | |
1589 | *basetypep = basetype; | |
1590 | return fieldno; | |
c906108c SS |
1591 | } |
1592 | } | |
81fe8080 DE |
1593 | |
1594 | /* Not found. */ | |
1595 | return -1; | |
1596 | } | |
1597 | else | |
1598 | { | |
1599 | if (basetypep) | |
1600 | *basetypep = TYPE_VPTR_BASETYPE (type); | |
1601 | return TYPE_VPTR_FIELDNO (type); | |
c906108c SS |
1602 | } |
1603 | } | |
1604 | ||
44e1a9eb DJ |
1605 | static void |
1606 | stub_noname_complaint (void) | |
1607 | { | |
e2e0b3e5 | 1608 | complaint (&symfile_complaints, _("stub type has NULL name")); |
44e1a9eb DJ |
1609 | } |
1610 | ||
d98b7a16 | 1611 | /* Worker for is_dynamic_type. */ |
80180f79 | 1612 | |
d98b7a16 TT |
1613 | static int |
1614 | is_dynamic_type_internal (struct type *type, int top_level) | |
80180f79 SA |
1615 | { |
1616 | type = check_typedef (type); | |
1617 | ||
d98b7a16 TT |
1618 | /* We only want to recognize references at the outermost level. */ |
1619 | if (top_level && TYPE_CODE (type) == TYPE_CODE_REF) | |
80180f79 SA |
1620 | type = check_typedef (TYPE_TARGET_TYPE (type)); |
1621 | ||
3cdcd0ce JB |
1622 | /* Types that have a dynamic TYPE_DATA_LOCATION are considered |
1623 | dynamic, even if the type itself is statically defined. | |
1624 | From a user's point of view, this may appear counter-intuitive; | |
1625 | but it makes sense in this context, because the point is to determine | |
1626 | whether any part of the type needs to be resolved before it can | |
1627 | be exploited. */ | |
1628 | if (TYPE_DATA_LOCATION (type) != NULL | |
1629 | && (TYPE_DATA_LOCATION_KIND (type) == PROP_LOCEXPR | |
1630 | || TYPE_DATA_LOCATION_KIND (type) == PROP_LOCLIST)) | |
1631 | return 1; | |
1632 | ||
80180f79 SA |
1633 | switch (TYPE_CODE (type)) |
1634 | { | |
6f8a3220 JB |
1635 | case TYPE_CODE_RANGE: |
1636 | return !has_static_range (TYPE_RANGE_DATA (type)); | |
6f8a3220 | 1637 | |
80180f79 SA |
1638 | case TYPE_CODE_ARRAY: |
1639 | { | |
80180f79 | 1640 | gdb_assert (TYPE_NFIELDS (type) == 1); |
6f8a3220 JB |
1641 | |
1642 | /* The array is dynamic if either the bounds are dynamic, | |
1643 | or the elements it contains have a dynamic contents. */ | |
d98b7a16 | 1644 | if (is_dynamic_type_internal (TYPE_INDEX_TYPE (type), 0)) |
80180f79 | 1645 | return 1; |
d98b7a16 | 1646 | return is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0); |
80180f79 | 1647 | } |
012370f6 TT |
1648 | |
1649 | case TYPE_CODE_STRUCT: | |
1650 | case TYPE_CODE_UNION: | |
1651 | { | |
1652 | int i; | |
1653 | ||
1654 | for (i = 0; i < TYPE_NFIELDS (type); ++i) | |
1655 | if (!field_is_static (&TYPE_FIELD (type, i)) | |
d98b7a16 | 1656 | && is_dynamic_type_internal (TYPE_FIELD_TYPE (type, i), 0)) |
012370f6 TT |
1657 | return 1; |
1658 | } | |
1659 | break; | |
80180f79 | 1660 | } |
92e2a17f TT |
1661 | |
1662 | return 0; | |
80180f79 SA |
1663 | } |
1664 | ||
d98b7a16 TT |
1665 | /* See gdbtypes.h. */ |
1666 | ||
1667 | int | |
1668 | is_dynamic_type (struct type *type) | |
1669 | { | |
1670 | return is_dynamic_type_internal (type, 1); | |
1671 | } | |
1672 | ||
1673 | static struct type *resolve_dynamic_type_internal (struct type *type, | |
1674 | CORE_ADDR addr, | |
1675 | int top_level); | |
1676 | ||
08412b07 JB |
1677 | /* Given a dynamic range type (dyn_range_type) and address, |
1678 | return a static version of that type. */ | |
d190df30 | 1679 | |
80180f79 | 1680 | static struct type * |
08412b07 | 1681 | resolve_dynamic_range (struct type *dyn_range_type, CORE_ADDR addr) |
80180f79 SA |
1682 | { |
1683 | CORE_ADDR value; | |
6f8a3220 | 1684 | struct type *static_range_type; |
80180f79 SA |
1685 | const struct dynamic_prop *prop; |
1686 | const struct dwarf2_locexpr_baton *baton; | |
1687 | struct dynamic_prop low_bound, high_bound; | |
1688 | ||
6f8a3220 | 1689 | gdb_assert (TYPE_CODE (dyn_range_type) == TYPE_CODE_RANGE); |
80180f79 | 1690 | |
6f8a3220 | 1691 | prop = &TYPE_RANGE_DATA (dyn_range_type)->low; |
08412b07 | 1692 | if (dwarf2_evaluate_property (prop, addr, &value)) |
80180f79 SA |
1693 | { |
1694 | low_bound.kind = PROP_CONST; | |
1695 | low_bound.data.const_val = value; | |
1696 | } | |
1697 | else | |
1698 | { | |
1699 | low_bound.kind = PROP_UNDEFINED; | |
1700 | low_bound.data.const_val = 0; | |
1701 | } | |
1702 | ||
6f8a3220 | 1703 | prop = &TYPE_RANGE_DATA (dyn_range_type)->high; |
08412b07 | 1704 | if (dwarf2_evaluate_property (prop, addr, &value)) |
80180f79 SA |
1705 | { |
1706 | high_bound.kind = PROP_CONST; | |
1707 | high_bound.data.const_val = value; | |
c451ebe5 | 1708 | |
6f8a3220 | 1709 | if (TYPE_RANGE_DATA (dyn_range_type)->flag_upper_bound_is_count) |
c451ebe5 SA |
1710 | high_bound.data.const_val |
1711 | = low_bound.data.const_val + high_bound.data.const_val - 1; | |
80180f79 SA |
1712 | } |
1713 | else | |
1714 | { | |
1715 | high_bound.kind = PROP_UNDEFINED; | |
1716 | high_bound.data.const_val = 0; | |
1717 | } | |
1718 | ||
6f8a3220 JB |
1719 | static_range_type = create_range_type (copy_type (dyn_range_type), |
1720 | TYPE_TARGET_TYPE (dyn_range_type), | |
1721 | &low_bound, &high_bound); | |
1722 | TYPE_RANGE_DATA (static_range_type)->flag_bound_evaluated = 1; | |
1723 | return static_range_type; | |
1724 | } | |
1725 | ||
1726 | /* Resolves dynamic bound values of an array type TYPE to static ones. | |
1727 | ADDRESS might be needed to resolve the subrange bounds, it is the location | |
1728 | of the associated array. */ | |
1729 | ||
1730 | static struct type * | |
08412b07 | 1731 | resolve_dynamic_array (struct type *type, CORE_ADDR addr) |
6f8a3220 JB |
1732 | { |
1733 | CORE_ADDR value; | |
1734 | struct type *elt_type; | |
1735 | struct type *range_type; | |
1736 | struct type *ary_dim; | |
1737 | ||
1738 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
1739 | ||
1740 | elt_type = type; | |
1741 | range_type = check_typedef (TYPE_INDEX_TYPE (elt_type)); | |
08412b07 | 1742 | range_type = resolve_dynamic_range (range_type, addr); |
6f8a3220 | 1743 | |
80180f79 SA |
1744 | ary_dim = check_typedef (TYPE_TARGET_TYPE (elt_type)); |
1745 | ||
1746 | if (ary_dim != NULL && TYPE_CODE (ary_dim) == TYPE_CODE_ARRAY) | |
08412b07 | 1747 | elt_type = resolve_dynamic_array (TYPE_TARGET_TYPE (type), addr); |
80180f79 SA |
1748 | else |
1749 | elt_type = TYPE_TARGET_TYPE (type); | |
1750 | ||
80180f79 SA |
1751 | return create_array_type (copy_type (type), |
1752 | elt_type, | |
1753 | range_type); | |
1754 | } | |
1755 | ||
012370f6 TT |
1756 | /* Resolve dynamic bounds of members of the union TYPE to static |
1757 | bounds. */ | |
1758 | ||
1759 | static struct type * | |
1760 | resolve_dynamic_union (struct type *type, CORE_ADDR addr) | |
1761 | { | |
1762 | struct type *resolved_type; | |
1763 | int i; | |
1764 | unsigned int max_len = 0; | |
1765 | ||
1766 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_UNION); | |
1767 | ||
1768 | resolved_type = copy_type (type); | |
1769 | TYPE_FIELDS (resolved_type) | |
1770 | = TYPE_ALLOC (resolved_type, | |
1771 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
1772 | memcpy (TYPE_FIELDS (resolved_type), | |
1773 | TYPE_FIELDS (type), | |
1774 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
1775 | for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i) | |
1776 | { | |
1777 | struct type *t; | |
1778 | ||
1779 | if (field_is_static (&TYPE_FIELD (type, i))) | |
1780 | continue; | |
1781 | ||
d98b7a16 TT |
1782 | t = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i), |
1783 | addr, 0); | |
012370f6 TT |
1784 | TYPE_FIELD_TYPE (resolved_type, i) = t; |
1785 | if (TYPE_LENGTH (t) > max_len) | |
1786 | max_len = TYPE_LENGTH (t); | |
1787 | } | |
1788 | ||
1789 | TYPE_LENGTH (resolved_type) = max_len; | |
1790 | return resolved_type; | |
1791 | } | |
1792 | ||
1793 | /* Resolve dynamic bounds of members of the struct TYPE to static | |
1794 | bounds. */ | |
1795 | ||
1796 | static struct type * | |
1797 | resolve_dynamic_struct (struct type *type, CORE_ADDR addr) | |
1798 | { | |
1799 | struct type *resolved_type; | |
1800 | int i; | |
6908c509 | 1801 | unsigned resolved_type_bit_length = 0; |
012370f6 TT |
1802 | |
1803 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT); | |
1804 | gdb_assert (TYPE_NFIELDS (type) > 0); | |
1805 | ||
1806 | resolved_type = copy_type (type); | |
1807 | TYPE_FIELDS (resolved_type) | |
1808 | = TYPE_ALLOC (resolved_type, | |
1809 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
1810 | memcpy (TYPE_FIELDS (resolved_type), | |
1811 | TYPE_FIELDS (type), | |
1812 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
1813 | for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i) | |
1814 | { | |
6908c509 | 1815 | unsigned new_bit_length; |
012370f6 TT |
1816 | |
1817 | if (field_is_static (&TYPE_FIELD (type, i))) | |
1818 | continue; | |
1819 | ||
6908c509 JB |
1820 | TYPE_FIELD_TYPE (resolved_type, i) |
1821 | = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i), | |
d98b7a16 | 1822 | addr, 0); |
012370f6 | 1823 | |
6908c509 JB |
1824 | /* As we know this field is not a static field, the field's |
1825 | field_loc_kind should be FIELD_LOC_KIND_BITPOS. Verify | |
1826 | this is the case, but only trigger a simple error rather | |
1827 | than an internal error if that fails. While failing | |
1828 | that verification indicates a bug in our code, the error | |
1829 | is not severe enough to suggest to the user he stops | |
1830 | his debugging session because of it. */ | |
1831 | if (TYPE_FIELD_LOC_KIND (resolved_type, i) != FIELD_LOC_KIND_BITPOS) | |
1832 | error (_("Cannot determine struct field location" | |
1833 | " (invalid location kind)")); | |
1834 | new_bit_length = TYPE_FIELD_BITPOS (resolved_type, i); | |
1835 | if (TYPE_FIELD_BITSIZE (resolved_type, i) != 0) | |
1836 | new_bit_length += TYPE_FIELD_BITSIZE (resolved_type, i); | |
1837 | else | |
1838 | new_bit_length += (TYPE_LENGTH (TYPE_FIELD_TYPE (resolved_type, i)) | |
1839 | * TARGET_CHAR_BIT); | |
1840 | ||
1841 | /* Normally, we would use the position and size of the last field | |
1842 | to determine the size of the enclosing structure. But GCC seems | |
1843 | to be encoding the position of some fields incorrectly when | |
1844 | the struct contains a dynamic field that is not placed last. | |
1845 | So we compute the struct size based on the field that has | |
1846 | the highest position + size - probably the best we can do. */ | |
1847 | if (new_bit_length > resolved_type_bit_length) | |
1848 | resolved_type_bit_length = new_bit_length; | |
012370f6 TT |
1849 | } |
1850 | ||
012370f6 | 1851 | TYPE_LENGTH (resolved_type) |
6908c509 JB |
1852 | = (resolved_type_bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; |
1853 | ||
012370f6 TT |
1854 | return resolved_type; |
1855 | } | |
1856 | ||
d98b7a16 | 1857 | /* Worker for resolved_dynamic_type. */ |
80180f79 | 1858 | |
d98b7a16 TT |
1859 | static struct type * |
1860 | resolve_dynamic_type_internal (struct type *type, CORE_ADDR addr, | |
1861 | int top_level) | |
80180f79 SA |
1862 | { |
1863 | struct type *real_type = check_typedef (type); | |
6f8a3220 | 1864 | struct type *resolved_type = type; |
3cdcd0ce JB |
1865 | const struct dynamic_prop *prop; |
1866 | CORE_ADDR value; | |
80180f79 | 1867 | |
d98b7a16 | 1868 | if (!is_dynamic_type_internal (real_type, top_level)) |
80180f79 SA |
1869 | return type; |
1870 | ||
6f8a3220 JB |
1871 | switch (TYPE_CODE (type)) |
1872 | { | |
1873 | case TYPE_CODE_TYPEDEF: | |
1874 | resolved_type = copy_type (type); | |
1875 | TYPE_TARGET_TYPE (resolved_type) | |
d98b7a16 TT |
1876 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), addr, |
1877 | top_level); | |
6f8a3220 JB |
1878 | break; |
1879 | ||
1880 | case TYPE_CODE_REF: | |
1881 | { | |
1882 | CORE_ADDR target_addr = read_memory_typed_address (addr, type); | |
1883 | ||
1884 | resolved_type = copy_type (type); | |
1885 | TYPE_TARGET_TYPE (resolved_type) | |
d98b7a16 TT |
1886 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), |
1887 | target_addr, top_level); | |
6f8a3220 JB |
1888 | break; |
1889 | } | |
1890 | ||
1891 | case TYPE_CODE_ARRAY: | |
08412b07 | 1892 | resolved_type = resolve_dynamic_array (type, addr); |
6f8a3220 JB |
1893 | break; |
1894 | ||
1895 | case TYPE_CODE_RANGE: | |
08412b07 | 1896 | resolved_type = resolve_dynamic_range (type, addr); |
6f8a3220 | 1897 | break; |
012370f6 TT |
1898 | |
1899 | case TYPE_CODE_UNION: | |
1900 | resolved_type = resolve_dynamic_union (type, addr); | |
1901 | break; | |
1902 | ||
1903 | case TYPE_CODE_STRUCT: | |
1904 | resolved_type = resolve_dynamic_struct (type, addr); | |
1905 | break; | |
6f8a3220 | 1906 | } |
80180f79 | 1907 | |
3cdcd0ce JB |
1908 | /* Resolve data_location attribute. */ |
1909 | prop = TYPE_DATA_LOCATION (resolved_type); | |
1910 | if (dwarf2_evaluate_property (prop, addr, &value)) | |
1911 | { | |
1912 | TYPE_DATA_LOCATION_ADDR (resolved_type) = value; | |
1913 | TYPE_DATA_LOCATION_KIND (resolved_type) = PROP_CONST; | |
1914 | } | |
1915 | else | |
1916 | TYPE_DATA_LOCATION (resolved_type) = NULL; | |
1917 | ||
80180f79 SA |
1918 | return resolved_type; |
1919 | } | |
1920 | ||
d98b7a16 TT |
1921 | /* See gdbtypes.h */ |
1922 | ||
1923 | struct type * | |
1924 | resolve_dynamic_type (struct type *type, CORE_ADDR addr) | |
1925 | { | |
1926 | return resolve_dynamic_type_internal (type, addr, 1); | |
1927 | } | |
1928 | ||
92163a10 JK |
1929 | /* Find the real type of TYPE. This function returns the real type, |
1930 | after removing all layers of typedefs, and completing opaque or stub | |
1931 | types. Completion changes the TYPE argument, but stripping of | |
1932 | typedefs does not. | |
1933 | ||
1934 | Instance flags (e.g. const/volatile) are preserved as typedefs are | |
1935 | stripped. If necessary a new qualified form of the underlying type | |
1936 | is created. | |
1937 | ||
1938 | NOTE: This will return a typedef if TYPE_TARGET_TYPE for the typedef has | |
1939 | not been computed and we're either in the middle of reading symbols, or | |
1940 | there was no name for the typedef in the debug info. | |
1941 | ||
9bc118a5 DE |
1942 | NOTE: Lookup of opaque types can throw errors for invalid symbol files. |
1943 | QUITs in the symbol reading code can also throw. | |
1944 | Thus this function can throw an exception. | |
1945 | ||
92163a10 JK |
1946 | If TYPE is a TYPE_CODE_TYPEDEF, its length is updated to the length of |
1947 | the target type. | |
c906108c SS |
1948 | |
1949 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
0963b4bd | 1950 | we can find a full definition in some other file. If so, copy this |
7ba81444 MS |
1951 | definition, so we can use it in future. There used to be a comment |
1952 | (but not any code) that if we don't find a full definition, we'd | |
1953 | set a flag so we don't spend time in the future checking the same | |
1954 | type. That would be a mistake, though--we might load in more | |
92163a10 | 1955 | symbols which contain a full definition for the type. */ |
c906108c SS |
1956 | |
1957 | struct type * | |
a02fd225 | 1958 | check_typedef (struct type *type) |
c906108c SS |
1959 | { |
1960 | struct type *orig_type = type; | |
92163a10 JK |
1961 | /* While we're removing typedefs, we don't want to lose qualifiers. |
1962 | E.g., const/volatile. */ | |
1963 | int instance_flags = TYPE_INSTANCE_FLAGS (type); | |
a02fd225 | 1964 | |
423c0af8 MS |
1965 | gdb_assert (type); |
1966 | ||
c906108c SS |
1967 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
1968 | { | |
1969 | if (!TYPE_TARGET_TYPE (type)) | |
1970 | { | |
0d5cff50 | 1971 | const char *name; |
c906108c SS |
1972 | struct symbol *sym; |
1973 | ||
1974 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 1975 | reading a symtab. Infinite recursion is one danger. */ |
c906108c | 1976 | if (currently_reading_symtab) |
92163a10 | 1977 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
1978 | |
1979 | name = type_name_no_tag (type); | |
7ba81444 MS |
1980 | /* FIXME: shouldn't we separately check the TYPE_NAME and |
1981 | the TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or | |
1982 | VAR_DOMAIN as appropriate? (this code was written before | |
1983 | TYPE_NAME and TYPE_TAG_NAME were separate). */ | |
c906108c SS |
1984 | if (name == NULL) |
1985 | { | |
23136709 | 1986 | stub_noname_complaint (); |
92163a10 | 1987 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 1988 | } |
2570f2b7 | 1989 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0); |
c906108c SS |
1990 | if (sym) |
1991 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
7ba81444 | 1992 | else /* TYPE_CODE_UNDEF */ |
e9bb382b | 1993 | TYPE_TARGET_TYPE (type) = alloc_type_arch (get_type_arch (type)); |
c906108c SS |
1994 | } |
1995 | type = TYPE_TARGET_TYPE (type); | |
c906108c | 1996 | |
92163a10 JK |
1997 | /* Preserve the instance flags as we traverse down the typedef chain. |
1998 | ||
1999 | Handling address spaces/classes is nasty, what do we do if there's a | |
2000 | conflict? | |
2001 | E.g., what if an outer typedef marks the type as class_1 and an inner | |
2002 | typedef marks the type as class_2? | |
2003 | This is the wrong place to do such error checking. We leave it to | |
2004 | the code that created the typedef in the first place to flag the | |
2005 | error. We just pick the outer address space (akin to letting the | |
2006 | outer cast in a chain of casting win), instead of assuming | |
2007 | "it can't happen". */ | |
2008 | { | |
2009 | const int ALL_SPACES = (TYPE_INSTANCE_FLAG_CODE_SPACE | |
2010 | | TYPE_INSTANCE_FLAG_DATA_SPACE); | |
2011 | const int ALL_CLASSES = TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL; | |
2012 | int new_instance_flags = TYPE_INSTANCE_FLAGS (type); | |
2013 | ||
2014 | /* Treat code vs data spaces and address classes separately. */ | |
2015 | if ((instance_flags & ALL_SPACES) != 0) | |
2016 | new_instance_flags &= ~ALL_SPACES; | |
2017 | if ((instance_flags & ALL_CLASSES) != 0) | |
2018 | new_instance_flags &= ~ALL_CLASSES; | |
2019 | ||
2020 | instance_flags |= new_instance_flags; | |
2021 | } | |
2022 | } | |
a02fd225 | 2023 | |
7ba81444 MS |
2024 | /* If this is a struct/class/union with no fields, then check |
2025 | whether a full definition exists somewhere else. This is for | |
2026 | systems where a type definition with no fields is issued for such | |
2027 | types, instead of identifying them as stub types in the first | |
2028 | place. */ | |
c5aa993b | 2029 | |
7ba81444 MS |
2030 | if (TYPE_IS_OPAQUE (type) |
2031 | && opaque_type_resolution | |
2032 | && !currently_reading_symtab) | |
c906108c | 2033 | { |
0d5cff50 | 2034 | const char *name = type_name_no_tag (type); |
c5aa993b | 2035 | struct type *newtype; |
d8734c88 | 2036 | |
c906108c SS |
2037 | if (name == NULL) |
2038 | { | |
23136709 | 2039 | stub_noname_complaint (); |
92163a10 | 2040 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
2041 | } |
2042 | newtype = lookup_transparent_type (name); | |
ad766c0a | 2043 | |
c906108c | 2044 | if (newtype) |
ad766c0a | 2045 | { |
7ba81444 MS |
2046 | /* If the resolved type and the stub are in the same |
2047 | objfile, then replace the stub type with the real deal. | |
2048 | But if they're in separate objfiles, leave the stub | |
2049 | alone; we'll just look up the transparent type every time | |
2050 | we call check_typedef. We can't create pointers between | |
2051 | types allocated to different objfiles, since they may | |
2052 | have different lifetimes. Trying to copy NEWTYPE over to | |
2053 | TYPE's objfile is pointless, too, since you'll have to | |
2054 | move over any other types NEWTYPE refers to, which could | |
2055 | be an unbounded amount of stuff. */ | |
ad766c0a | 2056 | if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
92163a10 JK |
2057 | type = make_qualified_type (newtype, |
2058 | TYPE_INSTANCE_FLAGS (type), | |
2059 | type); | |
ad766c0a JB |
2060 | else |
2061 | type = newtype; | |
2062 | } | |
c906108c | 2063 | } |
7ba81444 MS |
2064 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
2065 | types. */ | |
74a9bb82 | 2066 | else if (TYPE_STUB (type) && !currently_reading_symtab) |
c906108c | 2067 | { |
0d5cff50 | 2068 | const char *name = type_name_no_tag (type); |
c906108c | 2069 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
176620f1 | 2070 | TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or VAR_DOMAIN |
7b83ea04 AC |
2071 | as appropriate? (this code was written before TYPE_NAME and |
2072 | TYPE_TAG_NAME were separate). */ | |
c906108c | 2073 | struct symbol *sym; |
d8734c88 | 2074 | |
c906108c SS |
2075 | if (name == NULL) |
2076 | { | |
23136709 | 2077 | stub_noname_complaint (); |
92163a10 | 2078 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2079 | } |
2570f2b7 | 2080 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0); |
c906108c | 2081 | if (sym) |
c26f2453 JB |
2082 | { |
2083 | /* Same as above for opaque types, we can replace the stub | |
92163a10 | 2084 | with the complete type only if they are in the same |
c26f2453 JB |
2085 | objfile. */ |
2086 | if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type)) | |
92163a10 JK |
2087 | type = make_qualified_type (SYMBOL_TYPE (sym), |
2088 | TYPE_INSTANCE_FLAGS (type), | |
2089 | type); | |
c26f2453 JB |
2090 | else |
2091 | type = SYMBOL_TYPE (sym); | |
2092 | } | |
c906108c SS |
2093 | } |
2094 | ||
74a9bb82 | 2095 | if (TYPE_TARGET_STUB (type)) |
c906108c SS |
2096 | { |
2097 | struct type *range_type; | |
2098 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); | |
2099 | ||
74a9bb82 | 2100 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
c5aa993b | 2101 | { |
73e2eb35 | 2102 | /* Nothing we can do. */ |
c5aa993b | 2103 | } |
c906108c SS |
2104 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
2105 | { | |
2106 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
876cecd0 | 2107 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
2108 | } |
2109 | } | |
92163a10 JK |
2110 | |
2111 | type = make_qualified_type (type, instance_flags, NULL); | |
2112 | ||
7ba81444 | 2113 | /* Cache TYPE_LENGTH for future use. */ |
c906108c | 2114 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
92163a10 | 2115 | |
c906108c SS |
2116 | return type; |
2117 | } | |
2118 | ||
7ba81444 | 2119 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
48319d1f | 2120 | occurs, silently return a void type. */ |
c91ecb25 | 2121 | |
b9362cc7 | 2122 | static struct type * |
48319d1f | 2123 | safe_parse_type (struct gdbarch *gdbarch, char *p, int length) |
c91ecb25 ND |
2124 | { |
2125 | struct ui_file *saved_gdb_stderr; | |
34365054 | 2126 | struct type *type = NULL; /* Initialize to keep gcc happy. */ |
8e7b59a5 | 2127 | volatile struct gdb_exception except; |
c91ecb25 | 2128 | |
7ba81444 | 2129 | /* Suppress error messages. */ |
c91ecb25 ND |
2130 | saved_gdb_stderr = gdb_stderr; |
2131 | gdb_stderr = ui_file_new (); | |
2132 | ||
7ba81444 | 2133 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
8e7b59a5 KS |
2134 | TRY_CATCH (except, RETURN_MASK_ERROR) |
2135 | { | |
2136 | type = parse_and_eval_type (p, length); | |
2137 | } | |
2138 | ||
2139 | if (except.reason < 0) | |
48319d1f | 2140 | type = builtin_type (gdbarch)->builtin_void; |
c91ecb25 | 2141 | |
7ba81444 | 2142 | /* Stop suppressing error messages. */ |
c91ecb25 ND |
2143 | ui_file_delete (gdb_stderr); |
2144 | gdb_stderr = saved_gdb_stderr; | |
2145 | ||
2146 | return type; | |
2147 | } | |
2148 | ||
c906108c SS |
2149 | /* Ugly hack to convert method stubs into method types. |
2150 | ||
7ba81444 MS |
2151 | He ain't kiddin'. This demangles the name of the method into a |
2152 | string including argument types, parses out each argument type, | |
2153 | generates a string casting a zero to that type, evaluates the | |
2154 | string, and stuffs the resulting type into an argtype vector!!! | |
2155 | Then it knows the type of the whole function (including argument | |
2156 | types for overloading), which info used to be in the stab's but was | |
2157 | removed to hack back the space required for them. */ | |
c906108c | 2158 | |
de17c821 | 2159 | static void |
fba45db2 | 2160 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c | 2161 | { |
50810684 | 2162 | struct gdbarch *gdbarch = get_type_arch (type); |
c906108c SS |
2163 | struct fn_field *f; |
2164 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
8de20a37 TT |
2165 | char *demangled_name = gdb_demangle (mangled_name, |
2166 | DMGL_PARAMS | DMGL_ANSI); | |
c906108c SS |
2167 | char *argtypetext, *p; |
2168 | int depth = 0, argcount = 1; | |
ad2f7632 | 2169 | struct field *argtypes; |
c906108c SS |
2170 | struct type *mtype; |
2171 | ||
2172 | /* Make sure we got back a function string that we can use. */ | |
2173 | if (demangled_name) | |
2174 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
2175 | else |
2176 | p = NULL; | |
c906108c SS |
2177 | |
2178 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
2179 | error (_("Internal: Cannot demangle mangled name `%s'."), |
2180 | mangled_name); | |
c906108c SS |
2181 | |
2182 | /* Now, read in the parameters that define this type. */ | |
2183 | p += 1; | |
2184 | argtypetext = p; | |
2185 | while (*p) | |
2186 | { | |
070ad9f0 | 2187 | if (*p == '(' || *p == '<') |
c906108c SS |
2188 | { |
2189 | depth += 1; | |
2190 | } | |
070ad9f0 | 2191 | else if (*p == ')' || *p == '>') |
c906108c SS |
2192 | { |
2193 | depth -= 1; | |
2194 | } | |
2195 | else if (*p == ',' && depth == 0) | |
2196 | { | |
2197 | argcount += 1; | |
2198 | } | |
2199 | ||
2200 | p += 1; | |
2201 | } | |
2202 | ||
ad2f7632 DJ |
2203 | /* If we read one argument and it was ``void'', don't count it. */ |
2204 | if (strncmp (argtypetext, "(void)", 6) == 0) | |
2205 | argcount -= 1; | |
c906108c | 2206 | |
ad2f7632 DJ |
2207 | /* We need one extra slot, for the THIS pointer. */ |
2208 | ||
2209 | argtypes = (struct field *) | |
2210 | TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); | |
c906108c | 2211 | p = argtypetext; |
4a1970e4 DJ |
2212 | |
2213 | /* Add THIS pointer for non-static methods. */ | |
2214 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
2215 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
2216 | argcount = 0; | |
2217 | else | |
2218 | { | |
ad2f7632 | 2219 | argtypes[0].type = lookup_pointer_type (type); |
4a1970e4 DJ |
2220 | argcount = 1; |
2221 | } | |
c906108c | 2222 | |
0963b4bd | 2223 | if (*p != ')') /* () means no args, skip while. */ |
c906108c SS |
2224 | { |
2225 | depth = 0; | |
2226 | while (*p) | |
2227 | { | |
2228 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
2229 | { | |
ad2f7632 DJ |
2230 | /* Avoid parsing of ellipsis, they will be handled below. |
2231 | Also avoid ``void'' as above. */ | |
2232 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 | |
2233 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 2234 | { |
ad2f7632 | 2235 | argtypes[argcount].type = |
48319d1f | 2236 | safe_parse_type (gdbarch, argtypetext, p - argtypetext); |
c906108c SS |
2237 | argcount += 1; |
2238 | } | |
2239 | argtypetext = p + 1; | |
2240 | } | |
2241 | ||
070ad9f0 | 2242 | if (*p == '(' || *p == '<') |
c906108c SS |
2243 | { |
2244 | depth += 1; | |
2245 | } | |
070ad9f0 | 2246 | else if (*p == ')' || *p == '>') |
c906108c SS |
2247 | { |
2248 | depth -= 1; | |
2249 | } | |
2250 | ||
2251 | p += 1; | |
2252 | } | |
2253 | } | |
2254 | ||
c906108c SS |
2255 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
2256 | ||
2257 | /* Now update the old "stub" type into a real type. */ | |
2258 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
2259 | TYPE_DOMAIN_TYPE (mtype) = type; | |
ad2f7632 DJ |
2260 | TYPE_FIELDS (mtype) = argtypes; |
2261 | TYPE_NFIELDS (mtype) = argcount; | |
876cecd0 | 2262 | TYPE_STUB (mtype) = 0; |
c906108c | 2263 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
ad2f7632 | 2264 | if (p[-2] == '.') |
876cecd0 | 2265 | TYPE_VARARGS (mtype) = 1; |
ad2f7632 DJ |
2266 | |
2267 | xfree (demangled_name); | |
c906108c SS |
2268 | } |
2269 | ||
7ba81444 MS |
2270 | /* This is the external interface to check_stub_method, above. This |
2271 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
2272 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
2273 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
2274 | correct. | |
de17c821 DJ |
2275 | |
2276 | This function unfortunately can not die until stabs do. */ | |
2277 | ||
2278 | void | |
2279 | check_stub_method_group (struct type *type, int method_id) | |
2280 | { | |
2281 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
2282 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
f710f4fc | 2283 | int j, found_stub = 0; |
de17c821 DJ |
2284 | |
2285 | for (j = 0; j < len; j++) | |
2286 | if (TYPE_FN_FIELD_STUB (f, j)) | |
2287 | { | |
2288 | found_stub = 1; | |
2289 | check_stub_method (type, method_id, j); | |
2290 | } | |
2291 | ||
7ba81444 MS |
2292 | /* GNU v3 methods with incorrect names were corrected when we read |
2293 | in type information, because it was cheaper to do it then. The | |
2294 | only GNU v2 methods with incorrect method names are operators and | |
2295 | destructors; destructors were also corrected when we read in type | |
2296 | information. | |
de17c821 DJ |
2297 | |
2298 | Therefore the only thing we need to handle here are v2 operator | |
2299 | names. */ | |
2300 | if (found_stub && strncmp (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z", 2) != 0) | |
2301 | { | |
2302 | int ret; | |
2303 | char dem_opname[256]; | |
2304 | ||
7ba81444 MS |
2305 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
2306 | method_id), | |
de17c821 DJ |
2307 | dem_opname, DMGL_ANSI); |
2308 | if (!ret) | |
7ba81444 MS |
2309 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
2310 | method_id), | |
de17c821 DJ |
2311 | dem_opname, 0); |
2312 | if (ret) | |
2313 | TYPE_FN_FIELDLIST_NAME (type, method_id) = xstrdup (dem_opname); | |
2314 | } | |
2315 | } | |
2316 | ||
9655fd1a JK |
2317 | /* Ensure it is in .rodata (if available) by workarounding GCC PR 44690. */ |
2318 | const struct cplus_struct_type cplus_struct_default = { }; | |
c906108c SS |
2319 | |
2320 | void | |
fba45db2 | 2321 | allocate_cplus_struct_type (struct type *type) |
c906108c | 2322 | { |
b4ba55a1 JB |
2323 | if (HAVE_CPLUS_STRUCT (type)) |
2324 | /* Structure was already allocated. Nothing more to do. */ | |
2325 | return; | |
2326 | ||
2327 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF; | |
2328 | TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
2329 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
2330 | *(TYPE_RAW_CPLUS_SPECIFIC (type)) = cplus_struct_default; | |
c906108c SS |
2331 | } |
2332 | ||
b4ba55a1 JB |
2333 | const struct gnat_aux_type gnat_aux_default = |
2334 | { NULL }; | |
2335 | ||
2336 | /* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF, | |
2337 | and allocate the associated gnat-specific data. The gnat-specific | |
2338 | data is also initialized to gnat_aux_default. */ | |
5212577a | 2339 | |
b4ba55a1 JB |
2340 | void |
2341 | allocate_gnat_aux_type (struct type *type) | |
2342 | { | |
2343 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF; | |
2344 | TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) | |
2345 | TYPE_ALLOC (type, sizeof (struct gnat_aux_type)); | |
2346 | *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default; | |
2347 | } | |
2348 | ||
c906108c SS |
2349 | /* Helper function to initialize the standard scalar types. |
2350 | ||
86f62fd7 TT |
2351 | If NAME is non-NULL, then it is used to initialize the type name. |
2352 | Note that NAME is not copied; it is required to have a lifetime at | |
2353 | least as long as OBJFILE. */ | |
c906108c SS |
2354 | |
2355 | struct type * | |
7ba81444 | 2356 | init_type (enum type_code code, int length, int flags, |
748e18ae | 2357 | const char *name, struct objfile *objfile) |
c906108c | 2358 | { |
52f0bd74 | 2359 | struct type *type; |
c906108c SS |
2360 | |
2361 | type = alloc_type (objfile); | |
2362 | TYPE_CODE (type) = code; | |
2363 | TYPE_LENGTH (type) = length; | |
876cecd0 TT |
2364 | |
2365 | gdb_assert (!(flags & (TYPE_FLAG_MIN - 1))); | |
2366 | if (flags & TYPE_FLAG_UNSIGNED) | |
2367 | TYPE_UNSIGNED (type) = 1; | |
2368 | if (flags & TYPE_FLAG_NOSIGN) | |
2369 | TYPE_NOSIGN (type) = 1; | |
2370 | if (flags & TYPE_FLAG_STUB) | |
2371 | TYPE_STUB (type) = 1; | |
2372 | if (flags & TYPE_FLAG_TARGET_STUB) | |
2373 | TYPE_TARGET_STUB (type) = 1; | |
2374 | if (flags & TYPE_FLAG_STATIC) | |
2375 | TYPE_STATIC (type) = 1; | |
2376 | if (flags & TYPE_FLAG_PROTOTYPED) | |
2377 | TYPE_PROTOTYPED (type) = 1; | |
2378 | if (flags & TYPE_FLAG_INCOMPLETE) | |
2379 | TYPE_INCOMPLETE (type) = 1; | |
2380 | if (flags & TYPE_FLAG_VARARGS) | |
2381 | TYPE_VARARGS (type) = 1; | |
2382 | if (flags & TYPE_FLAG_VECTOR) | |
2383 | TYPE_VECTOR (type) = 1; | |
2384 | if (flags & TYPE_FLAG_STUB_SUPPORTED) | |
2385 | TYPE_STUB_SUPPORTED (type) = 1; | |
876cecd0 TT |
2386 | if (flags & TYPE_FLAG_FIXED_INSTANCE) |
2387 | TYPE_FIXED_INSTANCE (type) = 1; | |
0875794a JK |
2388 | if (flags & TYPE_FLAG_GNU_IFUNC) |
2389 | TYPE_GNU_IFUNC (type) = 1; | |
876cecd0 | 2390 | |
86f62fd7 | 2391 | TYPE_NAME (type) = name; |
c906108c SS |
2392 | |
2393 | /* C++ fancies. */ | |
2394 | ||
973ccf8b | 2395 | if (name && strcmp (name, "char") == 0) |
876cecd0 | 2396 | TYPE_NOSIGN (type) = 1; |
973ccf8b | 2397 | |
b4ba55a1 | 2398 | switch (code) |
c906108c | 2399 | { |
b4ba55a1 JB |
2400 | case TYPE_CODE_STRUCT: |
2401 | case TYPE_CODE_UNION: | |
2402 | case TYPE_CODE_NAMESPACE: | |
2403 | INIT_CPLUS_SPECIFIC (type); | |
2404 | break; | |
2405 | case TYPE_CODE_FLT: | |
2406 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT; | |
2407 | break; | |
2408 | case TYPE_CODE_FUNC: | |
b6cdc2c1 | 2409 | INIT_FUNC_SPECIFIC (type); |
b4ba55a1 | 2410 | break; |
c906108c | 2411 | } |
c16abbde | 2412 | return type; |
c906108c | 2413 | } |
5212577a DE |
2414 | \f |
2415 | /* Queries on types. */ | |
c906108c | 2416 | |
c906108c | 2417 | int |
fba45db2 | 2418 | can_dereference (struct type *t) |
c906108c | 2419 | { |
7ba81444 MS |
2420 | /* FIXME: Should we return true for references as well as |
2421 | pointers? */ | |
c906108c SS |
2422 | CHECK_TYPEDEF (t); |
2423 | return | |
2424 | (t != NULL | |
2425 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
2426 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
2427 | } | |
2428 | ||
adf40b2e | 2429 | int |
fba45db2 | 2430 | is_integral_type (struct type *t) |
adf40b2e JM |
2431 | { |
2432 | CHECK_TYPEDEF (t); | |
2433 | return | |
2434 | ((t != NULL) | |
d4f3574e SS |
2435 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
2436 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
4f2aea11 | 2437 | || (TYPE_CODE (t) == TYPE_CODE_FLAGS) |
d4f3574e SS |
2438 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) |
2439 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
2440 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
2441 | } |
2442 | ||
e09342b5 TJB |
2443 | /* Return true if TYPE is scalar. */ |
2444 | ||
2445 | static int | |
2446 | is_scalar_type (struct type *type) | |
2447 | { | |
2448 | CHECK_TYPEDEF (type); | |
2449 | ||
2450 | switch (TYPE_CODE (type)) | |
2451 | { | |
2452 | case TYPE_CODE_ARRAY: | |
2453 | case TYPE_CODE_STRUCT: | |
2454 | case TYPE_CODE_UNION: | |
2455 | case TYPE_CODE_SET: | |
2456 | case TYPE_CODE_STRING: | |
e09342b5 TJB |
2457 | return 0; |
2458 | default: | |
2459 | return 1; | |
2460 | } | |
2461 | } | |
2462 | ||
2463 | /* Return true if T is scalar, or a composite type which in practice has | |
90e4670f TJB |
2464 | the memory layout of a scalar type. E.g., an array or struct with only |
2465 | one scalar element inside it, or a union with only scalar elements. */ | |
e09342b5 TJB |
2466 | |
2467 | int | |
2468 | is_scalar_type_recursive (struct type *t) | |
2469 | { | |
2470 | CHECK_TYPEDEF (t); | |
2471 | ||
2472 | if (is_scalar_type (t)) | |
2473 | return 1; | |
2474 | /* Are we dealing with an array or string of known dimensions? */ | |
2475 | else if ((TYPE_CODE (t) == TYPE_CODE_ARRAY | |
2476 | || TYPE_CODE (t) == TYPE_CODE_STRING) && TYPE_NFIELDS (t) == 1 | |
2477 | && TYPE_CODE (TYPE_INDEX_TYPE (t)) == TYPE_CODE_RANGE) | |
2478 | { | |
2479 | LONGEST low_bound, high_bound; | |
2480 | struct type *elt_type = check_typedef (TYPE_TARGET_TYPE (t)); | |
2481 | ||
2482 | get_discrete_bounds (TYPE_INDEX_TYPE (t), &low_bound, &high_bound); | |
2483 | ||
2484 | return high_bound == low_bound && is_scalar_type_recursive (elt_type); | |
2485 | } | |
2486 | /* Are we dealing with a struct with one element? */ | |
2487 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT && TYPE_NFIELDS (t) == 1) | |
2488 | return is_scalar_type_recursive (TYPE_FIELD_TYPE (t, 0)); | |
2489 | else if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
2490 | { | |
2491 | int i, n = TYPE_NFIELDS (t); | |
2492 | ||
2493 | /* If all elements of the union are scalar, then the union is scalar. */ | |
2494 | for (i = 0; i < n; i++) | |
2495 | if (!is_scalar_type_recursive (TYPE_FIELD_TYPE (t, i))) | |
2496 | return 0; | |
2497 | ||
2498 | return 1; | |
2499 | } | |
2500 | ||
2501 | return 0; | |
2502 | } | |
2503 | ||
4e8f195d TT |
2504 | /* A helper function which returns true if types A and B represent the |
2505 | "same" class type. This is true if the types have the same main | |
2506 | type, or the same name. */ | |
2507 | ||
2508 | int | |
2509 | class_types_same_p (const struct type *a, const struct type *b) | |
2510 | { | |
2511 | return (TYPE_MAIN_TYPE (a) == TYPE_MAIN_TYPE (b) | |
2512 | || (TYPE_NAME (a) && TYPE_NAME (b) | |
2513 | && !strcmp (TYPE_NAME (a), TYPE_NAME (b)))); | |
2514 | } | |
2515 | ||
a9d5ef47 SW |
2516 | /* If BASE is an ancestor of DCLASS return the distance between them. |
2517 | otherwise return -1; | |
2518 | eg: | |
2519 | ||
2520 | class A {}; | |
2521 | class B: public A {}; | |
2522 | class C: public B {}; | |
2523 | class D: C {}; | |
2524 | ||
2525 | distance_to_ancestor (A, A, 0) = 0 | |
2526 | distance_to_ancestor (A, B, 0) = 1 | |
2527 | distance_to_ancestor (A, C, 0) = 2 | |
2528 | distance_to_ancestor (A, D, 0) = 3 | |
2529 | ||
2530 | If PUBLIC is 1 then only public ancestors are considered, | |
2531 | and the function returns the distance only if BASE is a public ancestor | |
2532 | of DCLASS. | |
2533 | Eg: | |
2534 | ||
0963b4bd | 2535 | distance_to_ancestor (A, D, 1) = -1. */ |
c906108c | 2536 | |
0526b37a | 2537 | static int |
a9d5ef47 | 2538 | distance_to_ancestor (struct type *base, struct type *dclass, int public) |
c906108c SS |
2539 | { |
2540 | int i; | |
a9d5ef47 | 2541 | int d; |
c5aa993b | 2542 | |
c906108c SS |
2543 | CHECK_TYPEDEF (base); |
2544 | CHECK_TYPEDEF (dclass); | |
2545 | ||
4e8f195d | 2546 | if (class_types_same_p (base, dclass)) |
a9d5ef47 | 2547 | return 0; |
c906108c SS |
2548 | |
2549 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
4e8f195d | 2550 | { |
0526b37a SW |
2551 | if (public && ! BASETYPE_VIA_PUBLIC (dclass, i)) |
2552 | continue; | |
2553 | ||
a9d5ef47 SW |
2554 | d = distance_to_ancestor (base, TYPE_BASECLASS (dclass, i), public); |
2555 | if (d >= 0) | |
2556 | return 1 + d; | |
4e8f195d | 2557 | } |
c906108c | 2558 | |
a9d5ef47 | 2559 | return -1; |
c906108c | 2560 | } |
4e8f195d | 2561 | |
0526b37a SW |
2562 | /* Check whether BASE is an ancestor or base class or DCLASS |
2563 | Return 1 if so, and 0 if not. | |
2564 | Note: If BASE and DCLASS are of the same type, this function | |
2565 | will return 1. So for some class A, is_ancestor (A, A) will | |
2566 | return 1. */ | |
2567 | ||
2568 | int | |
2569 | is_ancestor (struct type *base, struct type *dclass) | |
2570 | { | |
a9d5ef47 | 2571 | return distance_to_ancestor (base, dclass, 0) >= 0; |
0526b37a SW |
2572 | } |
2573 | ||
4e8f195d TT |
2574 | /* Like is_ancestor, but only returns true when BASE is a public |
2575 | ancestor of DCLASS. */ | |
2576 | ||
2577 | int | |
2578 | is_public_ancestor (struct type *base, struct type *dclass) | |
2579 | { | |
a9d5ef47 | 2580 | return distance_to_ancestor (base, dclass, 1) >= 0; |
4e8f195d TT |
2581 | } |
2582 | ||
2583 | /* A helper function for is_unique_ancestor. */ | |
2584 | ||
2585 | static int | |
2586 | is_unique_ancestor_worker (struct type *base, struct type *dclass, | |
2587 | int *offset, | |
8af8e3bc PA |
2588 | const gdb_byte *valaddr, int embedded_offset, |
2589 | CORE_ADDR address, struct value *val) | |
4e8f195d TT |
2590 | { |
2591 | int i, count = 0; | |
2592 | ||
2593 | CHECK_TYPEDEF (base); | |
2594 | CHECK_TYPEDEF (dclass); | |
2595 | ||
2596 | for (i = 0; i < TYPE_N_BASECLASSES (dclass) && count < 2; ++i) | |
2597 | { | |
8af8e3bc PA |
2598 | struct type *iter; |
2599 | int this_offset; | |
4e8f195d | 2600 | |
8af8e3bc PA |
2601 | iter = check_typedef (TYPE_BASECLASS (dclass, i)); |
2602 | ||
2603 | this_offset = baseclass_offset (dclass, i, valaddr, embedded_offset, | |
2604 | address, val); | |
4e8f195d TT |
2605 | |
2606 | if (class_types_same_p (base, iter)) | |
2607 | { | |
2608 | /* If this is the first subclass, set *OFFSET and set count | |
2609 | to 1. Otherwise, if this is at the same offset as | |
2610 | previous instances, do nothing. Otherwise, increment | |
2611 | count. */ | |
2612 | if (*offset == -1) | |
2613 | { | |
2614 | *offset = this_offset; | |
2615 | count = 1; | |
2616 | } | |
2617 | else if (this_offset == *offset) | |
2618 | { | |
2619 | /* Nothing. */ | |
2620 | } | |
2621 | else | |
2622 | ++count; | |
2623 | } | |
2624 | else | |
2625 | count += is_unique_ancestor_worker (base, iter, offset, | |
8af8e3bc PA |
2626 | valaddr, |
2627 | embedded_offset + this_offset, | |
2628 | address, val); | |
4e8f195d TT |
2629 | } |
2630 | ||
2631 | return count; | |
2632 | } | |
2633 | ||
2634 | /* Like is_ancestor, but only returns true if BASE is a unique base | |
2635 | class of the type of VAL. */ | |
2636 | ||
2637 | int | |
2638 | is_unique_ancestor (struct type *base, struct value *val) | |
2639 | { | |
2640 | int offset = -1; | |
2641 | ||
2642 | return is_unique_ancestor_worker (base, value_type (val), &offset, | |
8af8e3bc PA |
2643 | value_contents_for_printing (val), |
2644 | value_embedded_offset (val), | |
2645 | value_address (val), val) == 1; | |
4e8f195d TT |
2646 | } |
2647 | ||
c906108c | 2648 | \f |
5212577a | 2649 | /* Overload resolution. */ |
c906108c | 2650 | |
6403aeea SW |
2651 | /* Return the sum of the rank of A with the rank of B. */ |
2652 | ||
2653 | struct rank | |
2654 | sum_ranks (struct rank a, struct rank b) | |
2655 | { | |
2656 | struct rank c; | |
2657 | c.rank = a.rank + b.rank; | |
a9d5ef47 | 2658 | c.subrank = a.subrank + b.subrank; |
6403aeea SW |
2659 | return c; |
2660 | } | |
2661 | ||
2662 | /* Compare rank A and B and return: | |
2663 | 0 if a = b | |
2664 | 1 if a is better than b | |
2665 | -1 if b is better than a. */ | |
2666 | ||
2667 | int | |
2668 | compare_ranks (struct rank a, struct rank b) | |
2669 | { | |
2670 | if (a.rank == b.rank) | |
a9d5ef47 SW |
2671 | { |
2672 | if (a.subrank == b.subrank) | |
2673 | return 0; | |
2674 | if (a.subrank < b.subrank) | |
2675 | return 1; | |
2676 | if (a.subrank > b.subrank) | |
2677 | return -1; | |
2678 | } | |
6403aeea SW |
2679 | |
2680 | if (a.rank < b.rank) | |
2681 | return 1; | |
2682 | ||
0963b4bd | 2683 | /* a.rank > b.rank */ |
6403aeea SW |
2684 | return -1; |
2685 | } | |
c5aa993b | 2686 | |
0963b4bd | 2687 | /* Functions for overload resolution begin here. */ |
c906108c SS |
2688 | |
2689 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
2690 | 0 => A and B are identical |
2691 | 1 => A and B are incomparable | |
2692 | 2 => A is better than B | |
2693 | 3 => A is worse than B */ | |
c906108c SS |
2694 | |
2695 | int | |
fba45db2 | 2696 | compare_badness (struct badness_vector *a, struct badness_vector *b) |
c906108c SS |
2697 | { |
2698 | int i; | |
2699 | int tmp; | |
c5aa993b JM |
2700 | short found_pos = 0; /* any positives in c? */ |
2701 | short found_neg = 0; /* any negatives in c? */ | |
2702 | ||
2703 | /* differing lengths => incomparable */ | |
c906108c SS |
2704 | if (a->length != b->length) |
2705 | return 1; | |
2706 | ||
c5aa993b JM |
2707 | /* Subtract b from a */ |
2708 | for (i = 0; i < a->length; i++) | |
c906108c | 2709 | { |
6403aeea | 2710 | tmp = compare_ranks (b->rank[i], a->rank[i]); |
c906108c | 2711 | if (tmp > 0) |
c5aa993b | 2712 | found_pos = 1; |
c906108c | 2713 | else if (tmp < 0) |
c5aa993b | 2714 | found_neg = 1; |
c906108c SS |
2715 | } |
2716 | ||
2717 | if (found_pos) | |
2718 | { | |
2719 | if (found_neg) | |
c5aa993b | 2720 | return 1; /* incomparable */ |
c906108c | 2721 | else |
c5aa993b | 2722 | return 3; /* A > B */ |
c906108c | 2723 | } |
c5aa993b JM |
2724 | else |
2725 | /* no positives */ | |
c906108c SS |
2726 | { |
2727 | if (found_neg) | |
c5aa993b | 2728 | return 2; /* A < B */ |
c906108c | 2729 | else |
c5aa993b | 2730 | return 0; /* A == B */ |
c906108c SS |
2731 | } |
2732 | } | |
2733 | ||
7ba81444 MS |
2734 | /* Rank a function by comparing its parameter types (PARMS, length |
2735 | NPARMS), to the types of an argument list (ARGS, length NARGS). | |
2736 | Return a pointer to a badness vector. This has NARGS + 1 | |
2737 | entries. */ | |
c906108c SS |
2738 | |
2739 | struct badness_vector * | |
7ba81444 | 2740 | rank_function (struct type **parms, int nparms, |
da096638 | 2741 | struct value **args, int nargs) |
c906108c SS |
2742 | { |
2743 | int i; | |
c5aa993b | 2744 | struct badness_vector *bv; |
c906108c SS |
2745 | int min_len = nparms < nargs ? nparms : nargs; |
2746 | ||
2747 | bv = xmalloc (sizeof (struct badness_vector)); | |
0963b4bd | 2748 | bv->length = nargs + 1; /* add 1 for the length-match rank. */ |
c4e54771 | 2749 | bv->rank = XNEWVEC (struct rank, nargs + 1); |
c906108c SS |
2750 | |
2751 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 2752 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 2753 | |
c906108c | 2754 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
2755 | arguments and ellipsis parameter lists, we should consider those |
2756 | and rank the length-match more finely. */ | |
c906108c | 2757 | |
6403aeea SW |
2758 | LENGTH_MATCH (bv) = (nargs != nparms) |
2759 | ? LENGTH_MISMATCH_BADNESS | |
2760 | : EXACT_MATCH_BADNESS; | |
c906108c | 2761 | |
0963b4bd | 2762 | /* Now rank all the parameters of the candidate function. */ |
74cc24b0 | 2763 | for (i = 1; i <= min_len; i++) |
da096638 KS |
2764 | bv->rank[i] = rank_one_type (parms[i - 1], value_type (args[i - 1]), |
2765 | args[i - 1]); | |
c906108c | 2766 | |
0963b4bd | 2767 | /* If more arguments than parameters, add dummy entries. */ |
c5aa993b | 2768 | for (i = min_len + 1; i <= nargs; i++) |
c906108c SS |
2769 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
2770 | ||
2771 | return bv; | |
2772 | } | |
2773 | ||
973ccf8b DJ |
2774 | /* Compare the names of two integer types, assuming that any sign |
2775 | qualifiers have been checked already. We do it this way because | |
2776 | there may be an "int" in the name of one of the types. */ | |
2777 | ||
2778 | static int | |
2779 | integer_types_same_name_p (const char *first, const char *second) | |
2780 | { | |
2781 | int first_p, second_p; | |
2782 | ||
7ba81444 MS |
2783 | /* If both are shorts, return 1; if neither is a short, keep |
2784 | checking. */ | |
973ccf8b DJ |
2785 | first_p = (strstr (first, "short") != NULL); |
2786 | second_p = (strstr (second, "short") != NULL); | |
2787 | if (first_p && second_p) | |
2788 | return 1; | |
2789 | if (first_p || second_p) | |
2790 | return 0; | |
2791 | ||
2792 | /* Likewise for long. */ | |
2793 | first_p = (strstr (first, "long") != NULL); | |
2794 | second_p = (strstr (second, "long") != NULL); | |
2795 | if (first_p && second_p) | |
2796 | return 1; | |
2797 | if (first_p || second_p) | |
2798 | return 0; | |
2799 | ||
2800 | /* Likewise for char. */ | |
2801 | first_p = (strstr (first, "char") != NULL); | |
2802 | second_p = (strstr (second, "char") != NULL); | |
2803 | if (first_p && second_p) | |
2804 | return 1; | |
2805 | if (first_p || second_p) | |
2806 | return 0; | |
2807 | ||
2808 | /* They must both be ints. */ | |
2809 | return 1; | |
2810 | } | |
2811 | ||
7062b0a0 SW |
2812 | /* Compares type A to type B returns 1 if the represent the same type |
2813 | 0 otherwise. */ | |
2814 | ||
bd69fc68 | 2815 | int |
7062b0a0 SW |
2816 | types_equal (struct type *a, struct type *b) |
2817 | { | |
2818 | /* Identical type pointers. */ | |
2819 | /* However, this still doesn't catch all cases of same type for b | |
2820 | and a. The reason is that builtin types are different from | |
2821 | the same ones constructed from the object. */ | |
2822 | if (a == b) | |
2823 | return 1; | |
2824 | ||
2825 | /* Resolve typedefs */ | |
2826 | if (TYPE_CODE (a) == TYPE_CODE_TYPEDEF) | |
2827 | a = check_typedef (a); | |
2828 | if (TYPE_CODE (b) == TYPE_CODE_TYPEDEF) | |
2829 | b = check_typedef (b); | |
2830 | ||
2831 | /* If after resolving typedefs a and b are not of the same type | |
2832 | code then they are not equal. */ | |
2833 | if (TYPE_CODE (a) != TYPE_CODE (b)) | |
2834 | return 0; | |
2835 | ||
2836 | /* If a and b are both pointers types or both reference types then | |
2837 | they are equal of the same type iff the objects they refer to are | |
2838 | of the same type. */ | |
2839 | if (TYPE_CODE (a) == TYPE_CODE_PTR | |
2840 | || TYPE_CODE (a) == TYPE_CODE_REF) | |
2841 | return types_equal (TYPE_TARGET_TYPE (a), | |
2842 | TYPE_TARGET_TYPE (b)); | |
2843 | ||
0963b4bd | 2844 | /* Well, damnit, if the names are exactly the same, I'll say they |
7062b0a0 SW |
2845 | are exactly the same. This happens when we generate method |
2846 | stubs. The types won't point to the same address, but they | |
0963b4bd | 2847 | really are the same. */ |
7062b0a0 SW |
2848 | |
2849 | if (TYPE_NAME (a) && TYPE_NAME (b) | |
2850 | && strcmp (TYPE_NAME (a), TYPE_NAME (b)) == 0) | |
2851 | return 1; | |
2852 | ||
2853 | /* Check if identical after resolving typedefs. */ | |
2854 | if (a == b) | |
2855 | return 1; | |
2856 | ||
9ce98649 TT |
2857 | /* Two function types are equal if their argument and return types |
2858 | are equal. */ | |
2859 | if (TYPE_CODE (a) == TYPE_CODE_FUNC) | |
2860 | { | |
2861 | int i; | |
2862 | ||
2863 | if (TYPE_NFIELDS (a) != TYPE_NFIELDS (b)) | |
2864 | return 0; | |
2865 | ||
2866 | if (!types_equal (TYPE_TARGET_TYPE (a), TYPE_TARGET_TYPE (b))) | |
2867 | return 0; | |
2868 | ||
2869 | for (i = 0; i < TYPE_NFIELDS (a); ++i) | |
2870 | if (!types_equal (TYPE_FIELD_TYPE (a, i), TYPE_FIELD_TYPE (b, i))) | |
2871 | return 0; | |
2872 | ||
2873 | return 1; | |
2874 | } | |
2875 | ||
7062b0a0 SW |
2876 | return 0; |
2877 | } | |
ca092b61 DE |
2878 | \f |
2879 | /* Deep comparison of types. */ | |
2880 | ||
2881 | /* An entry in the type-equality bcache. */ | |
2882 | ||
2883 | typedef struct type_equality_entry | |
2884 | { | |
2885 | struct type *type1, *type2; | |
2886 | } type_equality_entry_d; | |
2887 | ||
2888 | DEF_VEC_O (type_equality_entry_d); | |
2889 | ||
2890 | /* A helper function to compare two strings. Returns 1 if they are | |
2891 | the same, 0 otherwise. Handles NULLs properly. */ | |
2892 | ||
2893 | static int | |
2894 | compare_maybe_null_strings (const char *s, const char *t) | |
2895 | { | |
2896 | if (s == NULL && t != NULL) | |
2897 | return 0; | |
2898 | else if (s != NULL && t == NULL) | |
2899 | return 0; | |
2900 | else if (s == NULL && t== NULL) | |
2901 | return 1; | |
2902 | return strcmp (s, t) == 0; | |
2903 | } | |
2904 | ||
2905 | /* A helper function for check_types_worklist that checks two types for | |
2906 | "deep" equality. Returns non-zero if the types are considered the | |
2907 | same, zero otherwise. */ | |
2908 | ||
2909 | static int | |
2910 | check_types_equal (struct type *type1, struct type *type2, | |
2911 | VEC (type_equality_entry_d) **worklist) | |
2912 | { | |
2913 | CHECK_TYPEDEF (type1); | |
2914 | CHECK_TYPEDEF (type2); | |
2915 | ||
2916 | if (type1 == type2) | |
2917 | return 1; | |
2918 | ||
2919 | if (TYPE_CODE (type1) != TYPE_CODE (type2) | |
2920 | || TYPE_LENGTH (type1) != TYPE_LENGTH (type2) | |
2921 | || TYPE_UNSIGNED (type1) != TYPE_UNSIGNED (type2) | |
2922 | || TYPE_NOSIGN (type1) != TYPE_NOSIGN (type2) | |
2923 | || TYPE_VARARGS (type1) != TYPE_VARARGS (type2) | |
2924 | || TYPE_VECTOR (type1) != TYPE_VECTOR (type2) | |
2925 | || TYPE_NOTTEXT (type1) != TYPE_NOTTEXT (type2) | |
2926 | || TYPE_INSTANCE_FLAGS (type1) != TYPE_INSTANCE_FLAGS (type2) | |
2927 | || TYPE_NFIELDS (type1) != TYPE_NFIELDS (type2)) | |
2928 | return 0; | |
2929 | ||
2930 | if (!compare_maybe_null_strings (TYPE_TAG_NAME (type1), | |
2931 | TYPE_TAG_NAME (type2))) | |
2932 | return 0; | |
2933 | if (!compare_maybe_null_strings (TYPE_NAME (type1), TYPE_NAME (type2))) | |
2934 | return 0; | |
2935 | ||
2936 | if (TYPE_CODE (type1) == TYPE_CODE_RANGE) | |
2937 | { | |
2938 | if (memcmp (TYPE_RANGE_DATA (type1), TYPE_RANGE_DATA (type2), | |
2939 | sizeof (*TYPE_RANGE_DATA (type1))) != 0) | |
2940 | return 0; | |
2941 | } | |
2942 | else | |
2943 | { | |
2944 | int i; | |
2945 | ||
2946 | for (i = 0; i < TYPE_NFIELDS (type1); ++i) | |
2947 | { | |
2948 | const struct field *field1 = &TYPE_FIELD (type1, i); | |
2949 | const struct field *field2 = &TYPE_FIELD (type2, i); | |
2950 | struct type_equality_entry entry; | |
2951 | ||
2952 | if (FIELD_ARTIFICIAL (*field1) != FIELD_ARTIFICIAL (*field2) | |
2953 | || FIELD_BITSIZE (*field1) != FIELD_BITSIZE (*field2) | |
2954 | || FIELD_LOC_KIND (*field1) != FIELD_LOC_KIND (*field2)) | |
2955 | return 0; | |
2956 | if (!compare_maybe_null_strings (FIELD_NAME (*field1), | |
2957 | FIELD_NAME (*field2))) | |
2958 | return 0; | |
2959 | switch (FIELD_LOC_KIND (*field1)) | |
2960 | { | |
2961 | case FIELD_LOC_KIND_BITPOS: | |
2962 | if (FIELD_BITPOS (*field1) != FIELD_BITPOS (*field2)) | |
2963 | return 0; | |
2964 | break; | |
2965 | case FIELD_LOC_KIND_ENUMVAL: | |
2966 | if (FIELD_ENUMVAL (*field1) != FIELD_ENUMVAL (*field2)) | |
2967 | return 0; | |
2968 | break; | |
2969 | case FIELD_LOC_KIND_PHYSADDR: | |
2970 | if (FIELD_STATIC_PHYSADDR (*field1) | |
2971 | != FIELD_STATIC_PHYSADDR (*field2)) | |
2972 | return 0; | |
2973 | break; | |
2974 | case FIELD_LOC_KIND_PHYSNAME: | |
2975 | if (!compare_maybe_null_strings (FIELD_STATIC_PHYSNAME (*field1), | |
2976 | FIELD_STATIC_PHYSNAME (*field2))) | |
2977 | return 0; | |
2978 | break; | |
2979 | case FIELD_LOC_KIND_DWARF_BLOCK: | |
2980 | { | |
2981 | struct dwarf2_locexpr_baton *block1, *block2; | |
2982 | ||
2983 | block1 = FIELD_DWARF_BLOCK (*field1); | |
2984 | block2 = FIELD_DWARF_BLOCK (*field2); | |
2985 | if (block1->per_cu != block2->per_cu | |
2986 | || block1->size != block2->size | |
2987 | || memcmp (block1->data, block2->data, block1->size) != 0) | |
2988 | return 0; | |
2989 | } | |
2990 | break; | |
2991 | default: | |
2992 | internal_error (__FILE__, __LINE__, _("Unsupported field kind " | |
2993 | "%d by check_types_equal"), | |
2994 | FIELD_LOC_KIND (*field1)); | |
2995 | } | |
2996 | ||
2997 | entry.type1 = FIELD_TYPE (*field1); | |
2998 | entry.type2 = FIELD_TYPE (*field2); | |
2999 | VEC_safe_push (type_equality_entry_d, *worklist, &entry); | |
3000 | } | |
3001 | } | |
3002 | ||
3003 | if (TYPE_TARGET_TYPE (type1) != NULL) | |
3004 | { | |
3005 | struct type_equality_entry entry; | |
3006 | ||
3007 | if (TYPE_TARGET_TYPE (type2) == NULL) | |
3008 | return 0; | |
3009 | ||
3010 | entry.type1 = TYPE_TARGET_TYPE (type1); | |
3011 | entry.type2 = TYPE_TARGET_TYPE (type2); | |
3012 | VEC_safe_push (type_equality_entry_d, *worklist, &entry); | |
3013 | } | |
3014 | else if (TYPE_TARGET_TYPE (type2) != NULL) | |
3015 | return 0; | |
3016 | ||
3017 | return 1; | |
3018 | } | |
3019 | ||
3020 | /* Check types on a worklist for equality. Returns zero if any pair | |
3021 | is not equal, non-zero if they are all considered equal. */ | |
3022 | ||
3023 | static int | |
3024 | check_types_worklist (VEC (type_equality_entry_d) **worklist, | |
3025 | struct bcache *cache) | |
3026 | { | |
3027 | while (!VEC_empty (type_equality_entry_d, *worklist)) | |
3028 | { | |
3029 | struct type_equality_entry entry; | |
3030 | int added; | |
3031 | ||
3032 | entry = *VEC_last (type_equality_entry_d, *worklist); | |
3033 | VEC_pop (type_equality_entry_d, *worklist); | |
3034 | ||
3035 | /* If the type pair has already been visited, we know it is | |
3036 | ok. */ | |
3037 | bcache_full (&entry, sizeof (entry), cache, &added); | |
3038 | if (!added) | |
3039 | continue; | |
3040 | ||
3041 | if (check_types_equal (entry.type1, entry.type2, worklist) == 0) | |
3042 | return 0; | |
3043 | } | |
7062b0a0 | 3044 | |
ca092b61 DE |
3045 | return 1; |
3046 | } | |
3047 | ||
3048 | /* Return non-zero if types TYPE1 and TYPE2 are equal, as determined by a | |
3049 | "deep comparison". Otherwise return zero. */ | |
3050 | ||
3051 | int | |
3052 | types_deeply_equal (struct type *type1, struct type *type2) | |
3053 | { | |
3054 | volatile struct gdb_exception except; | |
3055 | int result = 0; | |
3056 | struct bcache *cache; | |
3057 | VEC (type_equality_entry_d) *worklist = NULL; | |
3058 | struct type_equality_entry entry; | |
3059 | ||
3060 | gdb_assert (type1 != NULL && type2 != NULL); | |
3061 | ||
3062 | /* Early exit for the simple case. */ | |
3063 | if (type1 == type2) | |
3064 | return 1; | |
3065 | ||
3066 | cache = bcache_xmalloc (NULL, NULL); | |
3067 | ||
3068 | entry.type1 = type1; | |
3069 | entry.type2 = type2; | |
3070 | VEC_safe_push (type_equality_entry_d, worklist, &entry); | |
3071 | ||
3072 | TRY_CATCH (except, RETURN_MASK_ALL) | |
3073 | { | |
3074 | result = check_types_worklist (&worklist, cache); | |
3075 | } | |
3076 | /* check_types_worklist calls several nested helper functions, | |
3077 | some of which can raise a GDB Exception, so we just check | |
3078 | and rethrow here. If there is a GDB exception, a comparison | |
3079 | is not capable (or trusted), so exit. */ | |
3080 | bcache_xfree (cache); | |
3081 | VEC_free (type_equality_entry_d, worklist); | |
3082 | /* Rethrow if there was a problem. */ | |
3083 | if (except.reason < 0) | |
3084 | throw_exception (except); | |
3085 | ||
3086 | return result; | |
3087 | } | |
3088 | \f | |
c906108c SS |
3089 | /* Compare one type (PARM) for compatibility with another (ARG). |
3090 | * PARM is intended to be the parameter type of a function; and | |
3091 | * ARG is the supplied argument's type. This function tests if | |
3092 | * the latter can be converted to the former. | |
da096638 | 3093 | * VALUE is the argument's value or NULL if none (or called recursively) |
c906108c SS |
3094 | * |
3095 | * Return 0 if they are identical types; | |
3096 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 MS |
3097 | * PARM is to ARG. The higher the return value, the worse the match. |
3098 | * Generally the "bad" conversions are all uniformly assigned a 100. */ | |
c906108c | 3099 | |
6403aeea | 3100 | struct rank |
da096638 | 3101 | rank_one_type (struct type *parm, struct type *arg, struct value *value) |
c906108c | 3102 | { |
a9d5ef47 | 3103 | struct rank rank = {0,0}; |
7062b0a0 SW |
3104 | |
3105 | if (types_equal (parm, arg)) | |
6403aeea | 3106 | return EXACT_MATCH_BADNESS; |
c906108c SS |
3107 | |
3108 | /* Resolve typedefs */ | |
3109 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
3110 | parm = check_typedef (parm); | |
3111 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
3112 | arg = check_typedef (arg); | |
3113 | ||
db577aea | 3114 | /* See through references, since we can almost make non-references |
7ba81444 | 3115 | references. */ |
db577aea | 3116 | if (TYPE_CODE (arg) == TYPE_CODE_REF) |
da096638 | 3117 | return (sum_ranks (rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL), |
6403aeea | 3118 | REFERENCE_CONVERSION_BADNESS)); |
db577aea | 3119 | if (TYPE_CODE (parm) == TYPE_CODE_REF) |
da096638 | 3120 | return (sum_ranks (rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL), |
6403aeea | 3121 | REFERENCE_CONVERSION_BADNESS)); |
5d161b24 | 3122 | if (overload_debug) |
7ba81444 MS |
3123 | /* Debugging only. */ |
3124 | fprintf_filtered (gdb_stderr, | |
3125 | "------ Arg is %s [%d], parm is %s [%d]\n", | |
3126 | TYPE_NAME (arg), TYPE_CODE (arg), | |
3127 | TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c | 3128 | |
0963b4bd | 3129 | /* x -> y means arg of type x being supplied for parameter of type y. */ |
c906108c SS |
3130 | |
3131 | switch (TYPE_CODE (parm)) | |
3132 | { | |
c5aa993b JM |
3133 | case TYPE_CODE_PTR: |
3134 | switch (TYPE_CODE (arg)) | |
3135 | { | |
3136 | case TYPE_CODE_PTR: | |
7062b0a0 SW |
3137 | |
3138 | /* Allowed pointer conversions are: | |
3139 | (a) pointer to void-pointer conversion. */ | |
3140 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) | |
c5aa993b | 3141 | return VOID_PTR_CONVERSION_BADNESS; |
7062b0a0 SW |
3142 | |
3143 | /* (b) pointer to ancestor-pointer conversion. */ | |
a9d5ef47 SW |
3144 | rank.subrank = distance_to_ancestor (TYPE_TARGET_TYPE (parm), |
3145 | TYPE_TARGET_TYPE (arg), | |
3146 | 0); | |
3147 | if (rank.subrank >= 0) | |
3148 | return sum_ranks (BASE_PTR_CONVERSION_BADNESS, rank); | |
7062b0a0 SW |
3149 | |
3150 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 3151 | case TYPE_CODE_ARRAY: |
7062b0a0 SW |
3152 | if (types_equal (TYPE_TARGET_TYPE (parm), |
3153 | TYPE_TARGET_TYPE (arg))) | |
6403aeea | 3154 | return EXACT_MATCH_BADNESS; |
7062b0a0 | 3155 | return INCOMPATIBLE_TYPE_BADNESS; |
c5aa993b | 3156 | case TYPE_CODE_FUNC: |
da096638 | 3157 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL); |
c5aa993b | 3158 | case TYPE_CODE_INT: |
a451cb65 | 3159 | if (value != NULL && TYPE_CODE (value_type (value)) == TYPE_CODE_INT) |
da096638 | 3160 | { |
a451cb65 KS |
3161 | if (value_as_long (value) == 0) |
3162 | { | |
3163 | /* Null pointer conversion: allow it to be cast to a pointer. | |
3164 | [4.10.1 of C++ standard draft n3290] */ | |
3165 | return NULL_POINTER_CONVERSION_BADNESS; | |
3166 | } | |
3167 | else | |
3168 | { | |
3169 | /* If type checking is disabled, allow the conversion. */ | |
3170 | if (!strict_type_checking) | |
3171 | return NS_INTEGER_POINTER_CONVERSION_BADNESS; | |
3172 | } | |
da096638 KS |
3173 | } |
3174 | /* fall through */ | |
c5aa993b | 3175 | case TYPE_CODE_ENUM: |
4f2aea11 | 3176 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
3177 | case TYPE_CODE_CHAR: |
3178 | case TYPE_CODE_RANGE: | |
3179 | case TYPE_CODE_BOOL: | |
c5aa993b JM |
3180 | default: |
3181 | return INCOMPATIBLE_TYPE_BADNESS; | |
3182 | } | |
3183 | case TYPE_CODE_ARRAY: | |
3184 | switch (TYPE_CODE (arg)) | |
3185 | { | |
3186 | case TYPE_CODE_PTR: | |
3187 | case TYPE_CODE_ARRAY: | |
7ba81444 | 3188 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
da096638 | 3189 | TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
3190 | default: |
3191 | return INCOMPATIBLE_TYPE_BADNESS; | |
3192 | } | |
3193 | case TYPE_CODE_FUNC: | |
3194 | switch (TYPE_CODE (arg)) | |
3195 | { | |
3196 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
da096638 | 3197 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
3198 | default: |
3199 | return INCOMPATIBLE_TYPE_BADNESS; | |
3200 | } | |
3201 | case TYPE_CODE_INT: | |
3202 | switch (TYPE_CODE (arg)) | |
3203 | { | |
3204 | case TYPE_CODE_INT: | |
3205 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
3206 | { | |
3207 | /* Deal with signed, unsigned, and plain chars and | |
7ba81444 | 3208 | signed and unsigned ints. */ |
c5aa993b JM |
3209 | if (TYPE_NOSIGN (parm)) |
3210 | { | |
0963b4bd | 3211 | /* This case only for character types. */ |
7ba81444 | 3212 | if (TYPE_NOSIGN (arg)) |
6403aeea | 3213 | return EXACT_MATCH_BADNESS; /* plain char -> plain char */ |
7ba81444 MS |
3214 | else /* signed/unsigned char -> plain char */ |
3215 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
3216 | } |
3217 | else if (TYPE_UNSIGNED (parm)) | |
3218 | { | |
3219 | if (TYPE_UNSIGNED (arg)) | |
3220 | { | |
7ba81444 MS |
3221 | /* unsigned int -> unsigned int, or |
3222 | unsigned long -> unsigned long */ | |
3223 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
3224 | TYPE_NAME (arg))) | |
6403aeea | 3225 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
3226 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
3227 | "int") | |
3228 | && integer_types_same_name_p (TYPE_NAME (parm), | |
3229 | "long")) | |
3e43a32a MS |
3230 | /* unsigned int -> unsigned long */ |
3231 | return INTEGER_PROMOTION_BADNESS; | |
c5aa993b | 3232 | else |
3e43a32a MS |
3233 | /* unsigned long -> unsigned int */ |
3234 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
3235 | } |
3236 | else | |
3237 | { | |
7ba81444 MS |
3238 | if (integer_types_same_name_p (TYPE_NAME (arg), |
3239 | "long") | |
3240 | && integer_types_same_name_p (TYPE_NAME (parm), | |
3241 | "int")) | |
3e43a32a MS |
3242 | /* signed long -> unsigned int */ |
3243 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b | 3244 | else |
3e43a32a MS |
3245 | /* signed int/long -> unsigned int/long */ |
3246 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
3247 | } |
3248 | } | |
3249 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
3250 | { | |
7ba81444 MS |
3251 | if (integer_types_same_name_p (TYPE_NAME (parm), |
3252 | TYPE_NAME (arg))) | |
6403aeea | 3253 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
3254 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
3255 | "int") | |
3256 | && integer_types_same_name_p (TYPE_NAME (parm), | |
3257 | "long")) | |
c5aa993b JM |
3258 | return INTEGER_PROMOTION_BADNESS; |
3259 | else | |
1c5cb38e | 3260 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3261 | } |
3262 | else | |
1c5cb38e | 3263 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3264 | } |
3265 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
3266 | return INTEGER_PROMOTION_BADNESS; | |
3267 | else | |
1c5cb38e | 3268 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b | 3269 | case TYPE_CODE_ENUM: |
4f2aea11 | 3270 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
3271 | case TYPE_CODE_CHAR: |
3272 | case TYPE_CODE_RANGE: | |
3273 | case TYPE_CODE_BOOL: | |
3d567982 TT |
3274 | if (TYPE_DECLARED_CLASS (arg)) |
3275 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b JM |
3276 | return INTEGER_PROMOTION_BADNESS; |
3277 | case TYPE_CODE_FLT: | |
3278 | return INT_FLOAT_CONVERSION_BADNESS; | |
3279 | case TYPE_CODE_PTR: | |
3280 | return NS_POINTER_CONVERSION_BADNESS; | |
3281 | default: | |
3282 | return INCOMPATIBLE_TYPE_BADNESS; | |
3283 | } | |
3284 | break; | |
3285 | case TYPE_CODE_ENUM: | |
3286 | switch (TYPE_CODE (arg)) | |
3287 | { | |
3288 | case TYPE_CODE_INT: | |
3289 | case TYPE_CODE_CHAR: | |
3290 | case TYPE_CODE_RANGE: | |
3291 | case TYPE_CODE_BOOL: | |
3292 | case TYPE_CODE_ENUM: | |
3d567982 TT |
3293 | if (TYPE_DECLARED_CLASS (parm) || TYPE_DECLARED_CLASS (arg)) |
3294 | return INCOMPATIBLE_TYPE_BADNESS; | |
1c5cb38e | 3295 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3296 | case TYPE_CODE_FLT: |
3297 | return INT_FLOAT_CONVERSION_BADNESS; | |
3298 | default: | |
3299 | return INCOMPATIBLE_TYPE_BADNESS; | |
3300 | } | |
3301 | break; | |
3302 | case TYPE_CODE_CHAR: | |
3303 | switch (TYPE_CODE (arg)) | |
3304 | { | |
3305 | case TYPE_CODE_RANGE: | |
3306 | case TYPE_CODE_BOOL: | |
3307 | case TYPE_CODE_ENUM: | |
3d567982 TT |
3308 | if (TYPE_DECLARED_CLASS (arg)) |
3309 | return INCOMPATIBLE_TYPE_BADNESS; | |
1c5cb38e | 3310 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3311 | case TYPE_CODE_FLT: |
3312 | return INT_FLOAT_CONVERSION_BADNESS; | |
3313 | case TYPE_CODE_INT: | |
3314 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
1c5cb38e | 3315 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3316 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) |
3317 | return INTEGER_PROMOTION_BADNESS; | |
3318 | /* >>> !! else fall through !! <<< */ | |
3319 | case TYPE_CODE_CHAR: | |
7ba81444 MS |
3320 | /* Deal with signed, unsigned, and plain chars for C++ and |
3321 | with int cases falling through from previous case. */ | |
c5aa993b JM |
3322 | if (TYPE_NOSIGN (parm)) |
3323 | { | |
3324 | if (TYPE_NOSIGN (arg)) | |
6403aeea | 3325 | return EXACT_MATCH_BADNESS; |
c5aa993b | 3326 | else |
1c5cb38e | 3327 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3328 | } |
3329 | else if (TYPE_UNSIGNED (parm)) | |
3330 | { | |
3331 | if (TYPE_UNSIGNED (arg)) | |
6403aeea | 3332 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3333 | else |
3334 | return INTEGER_PROMOTION_BADNESS; | |
3335 | } | |
3336 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
6403aeea | 3337 | return EXACT_MATCH_BADNESS; |
c5aa993b | 3338 | else |
1c5cb38e | 3339 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3340 | default: |
3341 | return INCOMPATIBLE_TYPE_BADNESS; | |
3342 | } | |
3343 | break; | |
3344 | case TYPE_CODE_RANGE: | |
3345 | switch (TYPE_CODE (arg)) | |
3346 | { | |
3347 | case TYPE_CODE_INT: | |
3348 | case TYPE_CODE_CHAR: | |
3349 | case TYPE_CODE_RANGE: | |
3350 | case TYPE_CODE_BOOL: | |
3351 | case TYPE_CODE_ENUM: | |
1c5cb38e | 3352 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3353 | case TYPE_CODE_FLT: |
3354 | return INT_FLOAT_CONVERSION_BADNESS; | |
3355 | default: | |
3356 | return INCOMPATIBLE_TYPE_BADNESS; | |
3357 | } | |
3358 | break; | |
3359 | case TYPE_CODE_BOOL: | |
3360 | switch (TYPE_CODE (arg)) | |
3361 | { | |
5b4f6e25 KS |
3362 | /* n3290 draft, section 4.12.1 (conv.bool): |
3363 | ||
3364 | "A prvalue of arithmetic, unscoped enumeration, pointer, or | |
3365 | pointer to member type can be converted to a prvalue of type | |
3366 | bool. A zero value, null pointer value, or null member pointer | |
3367 | value is converted to false; any other value is converted to | |
3368 | true. A prvalue of type std::nullptr_t can be converted to a | |
3369 | prvalue of type bool; the resulting value is false." */ | |
c5aa993b JM |
3370 | case TYPE_CODE_INT: |
3371 | case TYPE_CODE_CHAR: | |
c5aa993b JM |
3372 | case TYPE_CODE_ENUM: |
3373 | case TYPE_CODE_FLT: | |
5b4f6e25 | 3374 | case TYPE_CODE_MEMBERPTR: |
c5aa993b | 3375 | case TYPE_CODE_PTR: |
5b4f6e25 KS |
3376 | return BOOL_CONVERSION_BADNESS; |
3377 | case TYPE_CODE_RANGE: | |
3378 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 3379 | case TYPE_CODE_BOOL: |
6403aeea | 3380 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3381 | default: |
3382 | return INCOMPATIBLE_TYPE_BADNESS; | |
3383 | } | |
3384 | break; | |
3385 | case TYPE_CODE_FLT: | |
3386 | switch (TYPE_CODE (arg)) | |
3387 | { | |
3388 | case TYPE_CODE_FLT: | |
3389 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
3390 | return FLOAT_PROMOTION_BADNESS; | |
3391 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
6403aeea | 3392 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3393 | else |
3394 | return FLOAT_CONVERSION_BADNESS; | |
3395 | case TYPE_CODE_INT: | |
3396 | case TYPE_CODE_BOOL: | |
3397 | case TYPE_CODE_ENUM: | |
3398 | case TYPE_CODE_RANGE: | |
3399 | case TYPE_CODE_CHAR: | |
3400 | return INT_FLOAT_CONVERSION_BADNESS; | |
3401 | default: | |
3402 | return INCOMPATIBLE_TYPE_BADNESS; | |
3403 | } | |
3404 | break; | |
3405 | case TYPE_CODE_COMPLEX: | |
3406 | switch (TYPE_CODE (arg)) | |
7ba81444 | 3407 | { /* Strictly not needed for C++, but... */ |
c5aa993b JM |
3408 | case TYPE_CODE_FLT: |
3409 | return FLOAT_PROMOTION_BADNESS; | |
3410 | case TYPE_CODE_COMPLEX: | |
6403aeea | 3411 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3412 | default: |
3413 | return INCOMPATIBLE_TYPE_BADNESS; | |
3414 | } | |
3415 | break; | |
3416 | case TYPE_CODE_STRUCT: | |
0963b4bd | 3417 | /* currently same as TYPE_CODE_CLASS. */ |
c5aa993b JM |
3418 | switch (TYPE_CODE (arg)) |
3419 | { | |
3420 | case TYPE_CODE_STRUCT: | |
3421 | /* Check for derivation */ | |
a9d5ef47 SW |
3422 | rank.subrank = distance_to_ancestor (parm, arg, 0); |
3423 | if (rank.subrank >= 0) | |
3424 | return sum_ranks (BASE_CONVERSION_BADNESS, rank); | |
c5aa993b JM |
3425 | /* else fall through */ |
3426 | default: | |
3427 | return INCOMPATIBLE_TYPE_BADNESS; | |
3428 | } | |
3429 | break; | |
3430 | case TYPE_CODE_UNION: | |
3431 | switch (TYPE_CODE (arg)) | |
3432 | { | |
3433 | case TYPE_CODE_UNION: | |
3434 | default: | |
3435 | return INCOMPATIBLE_TYPE_BADNESS; | |
3436 | } | |
3437 | break; | |
0d5de010 | 3438 | case TYPE_CODE_MEMBERPTR: |
c5aa993b JM |
3439 | switch (TYPE_CODE (arg)) |
3440 | { | |
3441 | default: | |
3442 | return INCOMPATIBLE_TYPE_BADNESS; | |
3443 | } | |
3444 | break; | |
3445 | case TYPE_CODE_METHOD: | |
3446 | switch (TYPE_CODE (arg)) | |
3447 | { | |
3448 | ||
3449 | default: | |
3450 | return INCOMPATIBLE_TYPE_BADNESS; | |
3451 | } | |
3452 | break; | |
3453 | case TYPE_CODE_REF: | |
3454 | switch (TYPE_CODE (arg)) | |
3455 | { | |
3456 | ||
3457 | default: | |
3458 | return INCOMPATIBLE_TYPE_BADNESS; | |
3459 | } | |
3460 | ||
3461 | break; | |
3462 | case TYPE_CODE_SET: | |
3463 | switch (TYPE_CODE (arg)) | |
3464 | { | |
3465 | /* Not in C++ */ | |
3466 | case TYPE_CODE_SET: | |
7ba81444 | 3467 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), |
da096638 | 3468 | TYPE_FIELD_TYPE (arg, 0), NULL); |
c5aa993b JM |
3469 | default: |
3470 | return INCOMPATIBLE_TYPE_BADNESS; | |
3471 | } | |
3472 | break; | |
3473 | case TYPE_CODE_VOID: | |
3474 | default: | |
3475 | return INCOMPATIBLE_TYPE_BADNESS; | |
3476 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
3477 | } |
3478 | ||
0963b4bd | 3479 | /* End of functions for overload resolution. */ |
5212577a DE |
3480 | \f |
3481 | /* Routines to pretty-print types. */ | |
c906108c | 3482 | |
c906108c | 3483 | static void |
fba45db2 | 3484 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
3485 | { |
3486 | int bitno; | |
3487 | ||
3488 | for (bitno = 0; bitno < nbits; bitno++) | |
3489 | { | |
3490 | if ((bitno % 8) == 0) | |
3491 | { | |
3492 | puts_filtered (" "); | |
3493 | } | |
3494 | if (B_TST (bits, bitno)) | |
a3f17187 | 3495 | printf_filtered (("1")); |
c906108c | 3496 | else |
a3f17187 | 3497 | printf_filtered (("0")); |
c906108c SS |
3498 | } |
3499 | } | |
3500 | ||
ad2f7632 | 3501 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
3502 | include it since we may get into a infinitely recursive |
3503 | situation. */ | |
c906108c SS |
3504 | |
3505 | static void | |
ad2f7632 | 3506 | print_arg_types (struct field *args, int nargs, int spaces) |
c906108c SS |
3507 | { |
3508 | if (args != NULL) | |
3509 | { | |
ad2f7632 DJ |
3510 | int i; |
3511 | ||
3512 | for (i = 0; i < nargs; i++) | |
3513 | recursive_dump_type (args[i].type, spaces + 2); | |
c906108c SS |
3514 | } |
3515 | } | |
3516 | ||
d6a843b5 JK |
3517 | int |
3518 | field_is_static (struct field *f) | |
3519 | { | |
3520 | /* "static" fields are the fields whose location is not relative | |
3521 | to the address of the enclosing struct. It would be nice to | |
3522 | have a dedicated flag that would be set for static fields when | |
3523 | the type is being created. But in practice, checking the field | |
254e6b9e | 3524 | loc_kind should give us an accurate answer. */ |
d6a843b5 JK |
3525 | return (FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSNAME |
3526 | || FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSADDR); | |
3527 | } | |
3528 | ||
c906108c | 3529 | static void |
fba45db2 | 3530 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
3531 | { |
3532 | int method_idx; | |
3533 | int overload_idx; | |
3534 | struct fn_field *f; | |
3535 | ||
3536 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 3537 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
3538 | printf_filtered ("\n"); |
3539 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
3540 | { | |
3541 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
3542 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
3543 | method_idx, | |
3544 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
3545 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
3546 | gdb_stdout); | |
a3f17187 | 3547 | printf_filtered (_(") length %d\n"), |
c906108c SS |
3548 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
3549 | for (overload_idx = 0; | |
3550 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
3551 | overload_idx++) | |
3552 | { | |
3553 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
3554 | overload_idx, | |
3555 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
3556 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
3557 | gdb_stdout); | |
c906108c SS |
3558 | printf_filtered (")\n"); |
3559 | printfi_filtered (spaces + 8, "type "); | |
7ba81444 MS |
3560 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
3561 | gdb_stdout); | |
c906108c SS |
3562 | printf_filtered ("\n"); |
3563 | ||
3564 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
3565 | spaces + 8 + 2); | |
3566 | ||
3567 | printfi_filtered (spaces + 8, "args "); | |
7ba81444 MS |
3568 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
3569 | gdb_stdout); | |
c906108c SS |
3570 | printf_filtered ("\n"); |
3571 | ||
ad2f7632 | 3572 | print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), |
7ba81444 MS |
3573 | TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, |
3574 | overload_idx)), | |
ad2f7632 | 3575 | spaces); |
c906108c | 3576 | printfi_filtered (spaces + 8, "fcontext "); |
d4f3574e SS |
3577 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
3578 | gdb_stdout); | |
c906108c SS |
3579 | printf_filtered ("\n"); |
3580 | ||
3581 | printfi_filtered (spaces + 8, "is_const %d\n", | |
3582 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
3583 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
3584 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
3585 | printfi_filtered (spaces + 8, "is_private %d\n", | |
3586 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
3587 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
3588 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
3589 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
3590 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
3591 | printfi_filtered (spaces + 8, "voffset %u\n", | |
3592 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
3593 | } | |
3594 | } | |
3595 | } | |
3596 | ||
3597 | static void | |
fba45db2 | 3598 | print_cplus_stuff (struct type *type, int spaces) |
c906108c SS |
3599 | { |
3600 | printfi_filtered (spaces, "n_baseclasses %d\n", | |
3601 | TYPE_N_BASECLASSES (type)); | |
3602 | printfi_filtered (spaces, "nfn_fields %d\n", | |
3603 | TYPE_NFN_FIELDS (type)); | |
c906108c SS |
3604 | if (TYPE_N_BASECLASSES (type) > 0) |
3605 | { | |
3606 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
3607 | TYPE_N_BASECLASSES (type)); | |
7ba81444 MS |
3608 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
3609 | gdb_stdout); | |
c906108c SS |
3610 | printf_filtered (")"); |
3611 | ||
3612 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
3613 | TYPE_N_BASECLASSES (type)); | |
3614 | puts_filtered ("\n"); | |
3615 | } | |
3616 | if (TYPE_NFIELDS (type) > 0) | |
3617 | { | |
3618 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
3619 | { | |
7ba81444 MS |
3620 | printfi_filtered (spaces, |
3621 | "private_field_bits (%d bits at *", | |
c906108c | 3622 | TYPE_NFIELDS (type)); |
7ba81444 MS |
3623 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
3624 | gdb_stdout); | |
c906108c SS |
3625 | printf_filtered (")"); |
3626 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
3627 | TYPE_NFIELDS (type)); | |
3628 | puts_filtered ("\n"); | |
3629 | } | |
3630 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
3631 | { | |
7ba81444 MS |
3632 | printfi_filtered (spaces, |
3633 | "protected_field_bits (%d bits at *", | |
c906108c | 3634 | TYPE_NFIELDS (type)); |
7ba81444 MS |
3635 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
3636 | gdb_stdout); | |
c906108c SS |
3637 | printf_filtered (")"); |
3638 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
3639 | TYPE_NFIELDS (type)); | |
3640 | puts_filtered ("\n"); | |
3641 | } | |
3642 | } | |
3643 | if (TYPE_NFN_FIELDS (type) > 0) | |
3644 | { | |
3645 | dump_fn_fieldlists (type, spaces); | |
3646 | } | |
3647 | } | |
3648 | ||
b4ba55a1 JB |
3649 | /* Print the contents of the TYPE's type_specific union, assuming that |
3650 | its type-specific kind is TYPE_SPECIFIC_GNAT_STUFF. */ | |
3651 | ||
3652 | static void | |
3653 | print_gnat_stuff (struct type *type, int spaces) | |
3654 | { | |
3655 | struct type *descriptive_type = TYPE_DESCRIPTIVE_TYPE (type); | |
3656 | ||
3657 | recursive_dump_type (descriptive_type, spaces + 2); | |
3658 | } | |
3659 | ||
c906108c SS |
3660 | static struct obstack dont_print_type_obstack; |
3661 | ||
3662 | void | |
fba45db2 | 3663 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
3664 | { |
3665 | int idx; | |
3666 | ||
3667 | if (spaces == 0) | |
3668 | obstack_begin (&dont_print_type_obstack, 0); | |
3669 | ||
3670 | if (TYPE_NFIELDS (type) > 0 | |
b4ba55a1 | 3671 | || (HAVE_CPLUS_STRUCT (type) && TYPE_NFN_FIELDS (type) > 0)) |
c906108c SS |
3672 | { |
3673 | struct type **first_dont_print | |
7ba81444 | 3674 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 3675 | |
7ba81444 MS |
3676 | int i = (struct type **) |
3677 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
3678 | |
3679 | while (--i >= 0) | |
3680 | { | |
3681 | if (type == first_dont_print[i]) | |
3682 | { | |
3683 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 3684 | gdb_print_host_address (type, gdb_stdout); |
a3f17187 | 3685 | printf_filtered (_(" <same as already seen type>\n")); |
c906108c SS |
3686 | return; |
3687 | } | |
3688 | } | |
3689 | ||
3690 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
3691 | } | |
3692 | ||
3693 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 3694 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
3695 | printf_filtered ("\n"); |
3696 | printfi_filtered (spaces, "name '%s' (", | |
3697 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 3698 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c | 3699 | printf_filtered (")\n"); |
e9e79dd9 FF |
3700 | printfi_filtered (spaces, "tagname '%s' (", |
3701 | TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>"); | |
3702 | gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); | |
3703 | printf_filtered (")\n"); | |
c906108c SS |
3704 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
3705 | switch (TYPE_CODE (type)) | |
3706 | { | |
c5aa993b JM |
3707 | case TYPE_CODE_UNDEF: |
3708 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
3709 | break; | |
3710 | case TYPE_CODE_PTR: | |
3711 | printf_filtered ("(TYPE_CODE_PTR)"); | |
3712 | break; | |
3713 | case TYPE_CODE_ARRAY: | |
3714 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
3715 | break; | |
3716 | case TYPE_CODE_STRUCT: | |
3717 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
3718 | break; | |
3719 | case TYPE_CODE_UNION: | |
3720 | printf_filtered ("(TYPE_CODE_UNION)"); | |
3721 | break; | |
3722 | case TYPE_CODE_ENUM: | |
3723 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
3724 | break; | |
4f2aea11 MK |
3725 | case TYPE_CODE_FLAGS: |
3726 | printf_filtered ("(TYPE_CODE_FLAGS)"); | |
3727 | break; | |
c5aa993b JM |
3728 | case TYPE_CODE_FUNC: |
3729 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
3730 | break; | |
3731 | case TYPE_CODE_INT: | |
3732 | printf_filtered ("(TYPE_CODE_INT)"); | |
3733 | break; | |
3734 | case TYPE_CODE_FLT: | |
3735 | printf_filtered ("(TYPE_CODE_FLT)"); | |
3736 | break; | |
3737 | case TYPE_CODE_VOID: | |
3738 | printf_filtered ("(TYPE_CODE_VOID)"); | |
3739 | break; | |
3740 | case TYPE_CODE_SET: | |
3741 | printf_filtered ("(TYPE_CODE_SET)"); | |
3742 | break; | |
3743 | case TYPE_CODE_RANGE: | |
3744 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
3745 | break; | |
3746 | case TYPE_CODE_STRING: | |
3747 | printf_filtered ("(TYPE_CODE_STRING)"); | |
3748 | break; | |
3749 | case TYPE_CODE_ERROR: | |
3750 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
3751 | break; | |
0d5de010 DJ |
3752 | case TYPE_CODE_MEMBERPTR: |
3753 | printf_filtered ("(TYPE_CODE_MEMBERPTR)"); | |
3754 | break; | |
3755 | case TYPE_CODE_METHODPTR: | |
3756 | printf_filtered ("(TYPE_CODE_METHODPTR)"); | |
c5aa993b JM |
3757 | break; |
3758 | case TYPE_CODE_METHOD: | |
3759 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
3760 | break; | |
3761 | case TYPE_CODE_REF: | |
3762 | printf_filtered ("(TYPE_CODE_REF)"); | |
3763 | break; | |
3764 | case TYPE_CODE_CHAR: | |
3765 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
3766 | break; | |
3767 | case TYPE_CODE_BOOL: | |
3768 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
3769 | break; | |
e9e79dd9 FF |
3770 | case TYPE_CODE_COMPLEX: |
3771 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
3772 | break; | |
c5aa993b JM |
3773 | case TYPE_CODE_TYPEDEF: |
3774 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
3775 | break; | |
5c4e30ca DC |
3776 | case TYPE_CODE_NAMESPACE: |
3777 | printf_filtered ("(TYPE_CODE_NAMESPACE)"); | |
3778 | break; | |
c5aa993b JM |
3779 | default: |
3780 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
3781 | break; | |
c906108c SS |
3782 | } |
3783 | puts_filtered ("\n"); | |
3784 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
e9bb382b UW |
3785 | if (TYPE_OBJFILE_OWNED (type)) |
3786 | { | |
3787 | printfi_filtered (spaces, "objfile "); | |
3788 | gdb_print_host_address (TYPE_OWNER (type).objfile, gdb_stdout); | |
3789 | } | |
3790 | else | |
3791 | { | |
3792 | printfi_filtered (spaces, "gdbarch "); | |
3793 | gdb_print_host_address (TYPE_OWNER (type).gdbarch, gdb_stdout); | |
3794 | } | |
c906108c SS |
3795 | printf_filtered ("\n"); |
3796 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 3797 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
3798 | printf_filtered ("\n"); |
3799 | if (TYPE_TARGET_TYPE (type) != NULL) | |
3800 | { | |
3801 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
3802 | } | |
3803 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 3804 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
3805 | printf_filtered ("\n"); |
3806 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 3807 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 3808 | printf_filtered ("\n"); |
2fdde8f8 DJ |
3809 | printfi_filtered (spaces, "type_chain "); |
3810 | gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); | |
e9e79dd9 | 3811 | printf_filtered ("\n"); |
7ba81444 MS |
3812 | printfi_filtered (spaces, "instance_flags 0x%x", |
3813 | TYPE_INSTANCE_FLAGS (type)); | |
2fdde8f8 DJ |
3814 | if (TYPE_CONST (type)) |
3815 | { | |
3816 | puts_filtered (" TYPE_FLAG_CONST"); | |
3817 | } | |
3818 | if (TYPE_VOLATILE (type)) | |
3819 | { | |
3820 | puts_filtered (" TYPE_FLAG_VOLATILE"); | |
3821 | } | |
3822 | if (TYPE_CODE_SPACE (type)) | |
3823 | { | |
3824 | puts_filtered (" TYPE_FLAG_CODE_SPACE"); | |
3825 | } | |
3826 | if (TYPE_DATA_SPACE (type)) | |
3827 | { | |
3828 | puts_filtered (" TYPE_FLAG_DATA_SPACE"); | |
3829 | } | |
8b2dbe47 KB |
3830 | if (TYPE_ADDRESS_CLASS_1 (type)) |
3831 | { | |
3832 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_1"); | |
3833 | } | |
3834 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
3835 | { | |
3836 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_2"); | |
3837 | } | |
06d66ee9 TT |
3838 | if (TYPE_RESTRICT (type)) |
3839 | { | |
3840 | puts_filtered (" TYPE_FLAG_RESTRICT"); | |
3841 | } | |
2fdde8f8 | 3842 | puts_filtered ("\n"); |
876cecd0 TT |
3843 | |
3844 | printfi_filtered (spaces, "flags"); | |
762a036f | 3845 | if (TYPE_UNSIGNED (type)) |
c906108c SS |
3846 | { |
3847 | puts_filtered (" TYPE_FLAG_UNSIGNED"); | |
3848 | } | |
762a036f FF |
3849 | if (TYPE_NOSIGN (type)) |
3850 | { | |
3851 | puts_filtered (" TYPE_FLAG_NOSIGN"); | |
3852 | } | |
3853 | if (TYPE_STUB (type)) | |
c906108c SS |
3854 | { |
3855 | puts_filtered (" TYPE_FLAG_STUB"); | |
3856 | } | |
762a036f FF |
3857 | if (TYPE_TARGET_STUB (type)) |
3858 | { | |
3859 | puts_filtered (" TYPE_FLAG_TARGET_STUB"); | |
3860 | } | |
3861 | if (TYPE_STATIC (type)) | |
3862 | { | |
3863 | puts_filtered (" TYPE_FLAG_STATIC"); | |
3864 | } | |
762a036f FF |
3865 | if (TYPE_PROTOTYPED (type)) |
3866 | { | |
3867 | puts_filtered (" TYPE_FLAG_PROTOTYPED"); | |
3868 | } | |
3869 | if (TYPE_INCOMPLETE (type)) | |
3870 | { | |
3871 | puts_filtered (" TYPE_FLAG_INCOMPLETE"); | |
3872 | } | |
762a036f FF |
3873 | if (TYPE_VARARGS (type)) |
3874 | { | |
3875 | puts_filtered (" TYPE_FLAG_VARARGS"); | |
3876 | } | |
f5f8a009 EZ |
3877 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
3878 | an attribute for the array type, which tells whether or not we | |
3879 | have a vector, instead of a regular array. */ | |
3880 | if (TYPE_VECTOR (type)) | |
3881 | { | |
3882 | puts_filtered (" TYPE_FLAG_VECTOR"); | |
3883 | } | |
876cecd0 TT |
3884 | if (TYPE_FIXED_INSTANCE (type)) |
3885 | { | |
3886 | puts_filtered (" TYPE_FIXED_INSTANCE"); | |
3887 | } | |
3888 | if (TYPE_STUB_SUPPORTED (type)) | |
3889 | { | |
3890 | puts_filtered (" TYPE_STUB_SUPPORTED"); | |
3891 | } | |
3892 | if (TYPE_NOTTEXT (type)) | |
3893 | { | |
3894 | puts_filtered (" TYPE_NOTTEXT"); | |
3895 | } | |
c906108c SS |
3896 | puts_filtered ("\n"); |
3897 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 3898 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
3899 | puts_filtered ("\n"); |
3900 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
3901 | { | |
14e75d8e JK |
3902 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) |
3903 | printfi_filtered (spaces + 2, | |
3904 | "[%d] enumval %s type ", | |
3905 | idx, plongest (TYPE_FIELD_ENUMVAL (type, idx))); | |
3906 | else | |
3907 | printfi_filtered (spaces + 2, | |
3908 | "[%d] bitpos %d bitsize %d type ", | |
3909 | idx, TYPE_FIELD_BITPOS (type, idx), | |
3910 | TYPE_FIELD_BITSIZE (type, idx)); | |
d4f3574e | 3911 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
3912 | printf_filtered (" name '%s' (", |
3913 | TYPE_FIELD_NAME (type, idx) != NULL | |
3914 | ? TYPE_FIELD_NAME (type, idx) | |
3915 | : "<NULL>"); | |
d4f3574e | 3916 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
3917 | printf_filtered (")\n"); |
3918 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
3919 | { | |
3920 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
3921 | } | |
3922 | } | |
43bbcdc2 PH |
3923 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
3924 | { | |
3925 | printfi_filtered (spaces, "low %s%s high %s%s\n", | |
3926 | plongest (TYPE_LOW_BOUND (type)), | |
3927 | TYPE_LOW_BOUND_UNDEFINED (type) ? " (undefined)" : "", | |
3928 | plongest (TYPE_HIGH_BOUND (type)), | |
3e43a32a MS |
3929 | TYPE_HIGH_BOUND_UNDEFINED (type) |
3930 | ? " (undefined)" : ""); | |
43bbcdc2 | 3931 | } |
c906108c | 3932 | printfi_filtered (spaces, "vptr_basetype "); |
d4f3574e | 3933 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); |
c906108c SS |
3934 | puts_filtered ("\n"); |
3935 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
3936 | { | |
3937 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
3938 | } | |
7ba81444 MS |
3939 | printfi_filtered (spaces, "vptr_fieldno %d\n", |
3940 | TYPE_VPTR_FIELDNO (type)); | |
c906108c | 3941 | |
b4ba55a1 JB |
3942 | switch (TYPE_SPECIFIC_FIELD (type)) |
3943 | { | |
3944 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
3945 | printfi_filtered (spaces, "cplus_stuff "); | |
3946 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), | |
3947 | gdb_stdout); | |
3948 | puts_filtered ("\n"); | |
3949 | print_cplus_stuff (type, spaces); | |
3950 | break; | |
8da61cc4 | 3951 | |
b4ba55a1 JB |
3952 | case TYPE_SPECIFIC_GNAT_STUFF: |
3953 | printfi_filtered (spaces, "gnat_stuff "); | |
3954 | gdb_print_host_address (TYPE_GNAT_SPECIFIC (type), gdb_stdout); | |
3955 | puts_filtered ("\n"); | |
3956 | print_gnat_stuff (type, spaces); | |
3957 | break; | |
701c159d | 3958 | |
b4ba55a1 JB |
3959 | case TYPE_SPECIFIC_FLOATFORMAT: |
3960 | printfi_filtered (spaces, "floatformat "); | |
3961 | if (TYPE_FLOATFORMAT (type) == NULL) | |
3962 | puts_filtered ("(null)"); | |
3963 | else | |
3964 | { | |
3965 | puts_filtered ("{ "); | |
3966 | if (TYPE_FLOATFORMAT (type)[0] == NULL | |
3967 | || TYPE_FLOATFORMAT (type)[0]->name == NULL) | |
3968 | puts_filtered ("(null)"); | |
3969 | else | |
3970 | puts_filtered (TYPE_FLOATFORMAT (type)[0]->name); | |
3971 | ||
3972 | puts_filtered (", "); | |
3973 | if (TYPE_FLOATFORMAT (type)[1] == NULL | |
3974 | || TYPE_FLOATFORMAT (type)[1]->name == NULL) | |
3975 | puts_filtered ("(null)"); | |
3976 | else | |
3977 | puts_filtered (TYPE_FLOATFORMAT (type)[1]->name); | |
3978 | ||
3979 | puts_filtered (" }"); | |
3980 | } | |
3981 | puts_filtered ("\n"); | |
3982 | break; | |
c906108c | 3983 | |
b6cdc2c1 | 3984 | case TYPE_SPECIFIC_FUNC: |
b4ba55a1 JB |
3985 | printfi_filtered (spaces, "calling_convention %d\n", |
3986 | TYPE_CALLING_CONVENTION (type)); | |
b6cdc2c1 | 3987 | /* tail_call_list is not printed. */ |
b4ba55a1 | 3988 | break; |
c906108c | 3989 | } |
b4ba55a1 | 3990 | |
c906108c SS |
3991 | if (spaces == 0) |
3992 | obstack_free (&dont_print_type_obstack, NULL); | |
3993 | } | |
5212577a | 3994 | \f |
ae5a43e0 DJ |
3995 | /* Trivial helpers for the libiberty hash table, for mapping one |
3996 | type to another. */ | |
3997 | ||
3998 | struct type_pair | |
3999 | { | |
4000 | struct type *old, *new; | |
4001 | }; | |
4002 | ||
4003 | static hashval_t | |
4004 | type_pair_hash (const void *item) | |
4005 | { | |
4006 | const struct type_pair *pair = item; | |
d8734c88 | 4007 | |
ae5a43e0 DJ |
4008 | return htab_hash_pointer (pair->old); |
4009 | } | |
4010 | ||
4011 | static int | |
4012 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
4013 | { | |
4014 | const struct type_pair *lhs = item_lhs, *rhs = item_rhs; | |
d8734c88 | 4015 | |
ae5a43e0 DJ |
4016 | return lhs->old == rhs->old; |
4017 | } | |
4018 | ||
4019 | /* Allocate the hash table used by copy_type_recursive to walk | |
4020 | types without duplicates. We use OBJFILE's obstack, because | |
4021 | OBJFILE is about to be deleted. */ | |
4022 | ||
4023 | htab_t | |
4024 | create_copied_types_hash (struct objfile *objfile) | |
4025 | { | |
4026 | return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, | |
4027 | NULL, &objfile->objfile_obstack, | |
4028 | hashtab_obstack_allocate, | |
4029 | dummy_obstack_deallocate); | |
4030 | } | |
4031 | ||
7ba81444 MS |
4032 | /* Recursively copy (deep copy) TYPE, if it is associated with |
4033 | OBJFILE. Return a new type allocated using malloc, a saved type if | |
4034 | we have already visited TYPE (using COPIED_TYPES), or TYPE if it is | |
4035 | not associated with OBJFILE. */ | |
ae5a43e0 DJ |
4036 | |
4037 | struct type * | |
7ba81444 MS |
4038 | copy_type_recursive (struct objfile *objfile, |
4039 | struct type *type, | |
ae5a43e0 DJ |
4040 | htab_t copied_types) |
4041 | { | |
4042 | struct type_pair *stored, pair; | |
4043 | void **slot; | |
4044 | struct type *new_type; | |
4045 | ||
e9bb382b | 4046 | if (! TYPE_OBJFILE_OWNED (type)) |
ae5a43e0 DJ |
4047 | return type; |
4048 | ||
7ba81444 MS |
4049 | /* This type shouldn't be pointing to any types in other objfiles; |
4050 | if it did, the type might disappear unexpectedly. */ | |
ae5a43e0 DJ |
4051 | gdb_assert (TYPE_OBJFILE (type) == objfile); |
4052 | ||
4053 | pair.old = type; | |
4054 | slot = htab_find_slot (copied_types, &pair, INSERT); | |
4055 | if (*slot != NULL) | |
4056 | return ((struct type_pair *) *slot)->new; | |
4057 | ||
e9bb382b | 4058 | new_type = alloc_type_arch (get_type_arch (type)); |
ae5a43e0 DJ |
4059 | |
4060 | /* We must add the new type to the hash table immediately, in case | |
4061 | we encounter this type again during a recursive call below. */ | |
3e43a32a MS |
4062 | stored |
4063 | = obstack_alloc (&objfile->objfile_obstack, sizeof (struct type_pair)); | |
ae5a43e0 DJ |
4064 | stored->old = type; |
4065 | stored->new = new_type; | |
4066 | *slot = stored; | |
4067 | ||
876cecd0 TT |
4068 | /* Copy the common fields of types. For the main type, we simply |
4069 | copy the entire thing and then update specific fields as needed. */ | |
4070 | *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type); | |
e9bb382b UW |
4071 | TYPE_OBJFILE_OWNED (new_type) = 0; |
4072 | TYPE_OWNER (new_type).gdbarch = get_type_arch (type); | |
876cecd0 | 4073 | |
ae5a43e0 DJ |
4074 | if (TYPE_NAME (type)) |
4075 | TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type)); | |
4076 | if (TYPE_TAG_NAME (type)) | |
4077 | TYPE_TAG_NAME (new_type) = xstrdup (TYPE_TAG_NAME (type)); | |
ae5a43e0 DJ |
4078 | |
4079 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); | |
4080 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
4081 | ||
4082 | /* Copy the fields. */ | |
ae5a43e0 DJ |
4083 | if (TYPE_NFIELDS (type)) |
4084 | { | |
4085 | int i, nfields; | |
4086 | ||
4087 | nfields = TYPE_NFIELDS (type); | |
fc270c35 | 4088 | TYPE_FIELDS (new_type) = XCNEWVEC (struct field, nfields); |
ae5a43e0 DJ |
4089 | for (i = 0; i < nfields; i++) |
4090 | { | |
7ba81444 MS |
4091 | TYPE_FIELD_ARTIFICIAL (new_type, i) = |
4092 | TYPE_FIELD_ARTIFICIAL (type, i); | |
ae5a43e0 DJ |
4093 | TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
4094 | if (TYPE_FIELD_TYPE (type, i)) | |
4095 | TYPE_FIELD_TYPE (new_type, i) | |
4096 | = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i), | |
4097 | copied_types); | |
4098 | if (TYPE_FIELD_NAME (type, i)) | |
7ba81444 MS |
4099 | TYPE_FIELD_NAME (new_type, i) = |
4100 | xstrdup (TYPE_FIELD_NAME (type, i)); | |
d6a843b5 | 4101 | switch (TYPE_FIELD_LOC_KIND (type, i)) |
ae5a43e0 | 4102 | { |
d6a843b5 JK |
4103 | case FIELD_LOC_KIND_BITPOS: |
4104 | SET_FIELD_BITPOS (TYPE_FIELD (new_type, i), | |
4105 | TYPE_FIELD_BITPOS (type, i)); | |
4106 | break; | |
14e75d8e JK |
4107 | case FIELD_LOC_KIND_ENUMVAL: |
4108 | SET_FIELD_ENUMVAL (TYPE_FIELD (new_type, i), | |
4109 | TYPE_FIELD_ENUMVAL (type, i)); | |
4110 | break; | |
d6a843b5 JK |
4111 | case FIELD_LOC_KIND_PHYSADDR: |
4112 | SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i), | |
4113 | TYPE_FIELD_STATIC_PHYSADDR (type, i)); | |
4114 | break; | |
4115 | case FIELD_LOC_KIND_PHYSNAME: | |
4116 | SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i), | |
4117 | xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, | |
4118 | i))); | |
4119 | break; | |
4120 | default: | |
4121 | internal_error (__FILE__, __LINE__, | |
4122 | _("Unexpected type field location kind: %d"), | |
4123 | TYPE_FIELD_LOC_KIND (type, i)); | |
ae5a43e0 DJ |
4124 | } |
4125 | } | |
4126 | } | |
4127 | ||
0963b4bd | 4128 | /* For range types, copy the bounds information. */ |
43bbcdc2 PH |
4129 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
4130 | { | |
4131 | TYPE_RANGE_DATA (new_type) = xmalloc (sizeof (struct range_bounds)); | |
4132 | *TYPE_RANGE_DATA (new_type) = *TYPE_RANGE_DATA (type); | |
4133 | } | |
4134 | ||
3cdcd0ce JB |
4135 | /* Copy the data location information. */ |
4136 | if (TYPE_DATA_LOCATION (type) != NULL) | |
4137 | { | |
4138 | TYPE_DATA_LOCATION (new_type) | |
4139 | = TYPE_ALLOC (new_type, sizeof (struct dynamic_prop)); | |
4140 | memcpy (TYPE_DATA_LOCATION (new_type), TYPE_DATA_LOCATION (type), | |
4141 | sizeof (struct dynamic_prop)); | |
4142 | } | |
4143 | ||
ae5a43e0 DJ |
4144 | /* Copy pointers to other types. */ |
4145 | if (TYPE_TARGET_TYPE (type)) | |
7ba81444 MS |
4146 | TYPE_TARGET_TYPE (new_type) = |
4147 | copy_type_recursive (objfile, | |
4148 | TYPE_TARGET_TYPE (type), | |
4149 | copied_types); | |
ae5a43e0 | 4150 | if (TYPE_VPTR_BASETYPE (type)) |
7ba81444 MS |
4151 | TYPE_VPTR_BASETYPE (new_type) = |
4152 | copy_type_recursive (objfile, | |
4153 | TYPE_VPTR_BASETYPE (type), | |
4154 | copied_types); | |
ae5a43e0 DJ |
4155 | /* Maybe copy the type_specific bits. |
4156 | ||
4157 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
4158 | base classes and methods. There's no fundamental reason why we | |
4159 | can't, but at the moment it is not needed. */ | |
4160 | ||
4161 | if (TYPE_CODE (type) == TYPE_CODE_FLT) | |
d5d6fca5 | 4162 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); |
ae5a43e0 DJ |
4163 | else if (TYPE_CODE (type) == TYPE_CODE_STRUCT |
4164 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
ae5a43e0 DJ |
4165 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) |
4166 | INIT_CPLUS_SPECIFIC (new_type); | |
4167 | ||
4168 | return new_type; | |
4169 | } | |
4170 | ||
4af88198 JB |
4171 | /* Make a copy of the given TYPE, except that the pointer & reference |
4172 | types are not preserved. | |
4173 | ||
4174 | This function assumes that the given type has an associated objfile. | |
4175 | This objfile is used to allocate the new type. */ | |
4176 | ||
4177 | struct type * | |
4178 | copy_type (const struct type *type) | |
4179 | { | |
4180 | struct type *new_type; | |
4181 | ||
e9bb382b | 4182 | gdb_assert (TYPE_OBJFILE_OWNED (type)); |
4af88198 | 4183 | |
e9bb382b | 4184 | new_type = alloc_type_copy (type); |
4af88198 JB |
4185 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); |
4186 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
4187 | memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type), | |
4188 | sizeof (struct main_type)); | |
3cdcd0ce JB |
4189 | if (TYPE_DATA_LOCATION (type) != NULL) |
4190 | { | |
4191 | TYPE_DATA_LOCATION (new_type) | |
4192 | = TYPE_ALLOC (new_type, sizeof (struct dynamic_prop)); | |
4193 | memcpy (TYPE_DATA_LOCATION (new_type), TYPE_DATA_LOCATION (type), | |
4194 | sizeof (struct dynamic_prop)); | |
4195 | } | |
4af88198 JB |
4196 | |
4197 | return new_type; | |
4198 | } | |
5212577a | 4199 | \f |
e9bb382b UW |
4200 | /* Helper functions to initialize architecture-specific types. */ |
4201 | ||
4202 | /* Allocate a type structure associated with GDBARCH and set its | |
4203 | CODE, LENGTH, and NAME fields. */ | |
5212577a | 4204 | |
e9bb382b UW |
4205 | struct type * |
4206 | arch_type (struct gdbarch *gdbarch, | |
4207 | enum type_code code, int length, char *name) | |
4208 | { | |
4209 | struct type *type; | |
4210 | ||
4211 | type = alloc_type_arch (gdbarch); | |
4212 | TYPE_CODE (type) = code; | |
4213 | TYPE_LENGTH (type) = length; | |
4214 | ||
4215 | if (name) | |
4216 | TYPE_NAME (type) = xstrdup (name); | |
4217 | ||
4218 | return type; | |
4219 | } | |
4220 | ||
4221 | /* Allocate a TYPE_CODE_INT type structure associated with GDBARCH. | |
4222 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
4223 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 4224 | |
e9bb382b UW |
4225 | struct type * |
4226 | arch_integer_type (struct gdbarch *gdbarch, | |
4227 | int bit, int unsigned_p, char *name) | |
4228 | { | |
4229 | struct type *t; | |
4230 | ||
4231 | t = arch_type (gdbarch, TYPE_CODE_INT, bit / TARGET_CHAR_BIT, name); | |
4232 | if (unsigned_p) | |
4233 | TYPE_UNSIGNED (t) = 1; | |
4234 | if (name && strcmp (name, "char") == 0) | |
4235 | TYPE_NOSIGN (t) = 1; | |
4236 | ||
4237 | return t; | |
4238 | } | |
4239 | ||
4240 | /* Allocate a TYPE_CODE_CHAR type structure associated with GDBARCH. | |
4241 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
4242 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 4243 | |
e9bb382b UW |
4244 | struct type * |
4245 | arch_character_type (struct gdbarch *gdbarch, | |
4246 | int bit, int unsigned_p, char *name) | |
4247 | { | |
4248 | struct type *t; | |
4249 | ||
4250 | t = arch_type (gdbarch, TYPE_CODE_CHAR, bit / TARGET_CHAR_BIT, name); | |
4251 | if (unsigned_p) | |
4252 | TYPE_UNSIGNED (t) = 1; | |
4253 | ||
4254 | return t; | |
4255 | } | |
4256 | ||
4257 | /* Allocate a TYPE_CODE_BOOL type structure associated with GDBARCH. | |
4258 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
4259 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 4260 | |
e9bb382b UW |
4261 | struct type * |
4262 | arch_boolean_type (struct gdbarch *gdbarch, | |
4263 | int bit, int unsigned_p, char *name) | |
4264 | { | |
4265 | struct type *t; | |
4266 | ||
4267 | t = arch_type (gdbarch, TYPE_CODE_BOOL, bit / TARGET_CHAR_BIT, name); | |
4268 | if (unsigned_p) | |
4269 | TYPE_UNSIGNED (t) = 1; | |
4270 | ||
4271 | return t; | |
4272 | } | |
4273 | ||
4274 | /* Allocate a TYPE_CODE_FLT type structure associated with GDBARCH. | |
4275 | BIT is the type size in bits; if BIT equals -1, the size is | |
4276 | determined by the floatformat. NAME is the type name. Set the | |
4277 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
5212577a | 4278 | |
27067745 | 4279 | struct type * |
e9bb382b UW |
4280 | arch_float_type (struct gdbarch *gdbarch, |
4281 | int bit, char *name, const struct floatformat **floatformats) | |
8da61cc4 DJ |
4282 | { |
4283 | struct type *t; | |
4284 | ||
4285 | if (bit == -1) | |
4286 | { | |
4287 | gdb_assert (floatformats != NULL); | |
4288 | gdb_assert (floatformats[0] != NULL && floatformats[1] != NULL); | |
4289 | bit = floatformats[0]->totalsize; | |
4290 | } | |
4291 | gdb_assert (bit >= 0); | |
4292 | ||
e9bb382b | 4293 | t = arch_type (gdbarch, TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, name); |
8da61cc4 DJ |
4294 | TYPE_FLOATFORMAT (t) = floatformats; |
4295 | return t; | |
4296 | } | |
4297 | ||
e9bb382b UW |
4298 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with GDBARCH. |
4299 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
5212577a | 4300 | |
27067745 | 4301 | struct type * |
e9bb382b UW |
4302 | arch_complex_type (struct gdbarch *gdbarch, |
4303 | char *name, struct type *target_type) | |
27067745 UW |
4304 | { |
4305 | struct type *t; | |
d8734c88 | 4306 | |
e9bb382b UW |
4307 | t = arch_type (gdbarch, TYPE_CODE_COMPLEX, |
4308 | 2 * TYPE_LENGTH (target_type), name); | |
27067745 UW |
4309 | TYPE_TARGET_TYPE (t) = target_type; |
4310 | return t; | |
4311 | } | |
4312 | ||
e9bb382b | 4313 | /* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH. |
eb90ce83 | 4314 | NAME is the type name. LENGTH is the size of the flag word in bytes. */ |
5212577a | 4315 | |
e9bb382b UW |
4316 | struct type * |
4317 | arch_flags_type (struct gdbarch *gdbarch, char *name, int length) | |
4318 | { | |
4319 | int nfields = length * TARGET_CHAR_BIT; | |
4320 | struct type *type; | |
4321 | ||
4322 | type = arch_type (gdbarch, TYPE_CODE_FLAGS, length, name); | |
4323 | TYPE_UNSIGNED (type) = 1; | |
4324 | TYPE_NFIELDS (type) = nfields; | |
4325 | TYPE_FIELDS (type) = TYPE_ZALLOC (type, nfields * sizeof (struct field)); | |
4326 | ||
4327 | return type; | |
4328 | } | |
4329 | ||
4330 | /* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
4331 | position BITPOS is called NAME. */ | |
5212577a | 4332 | |
e9bb382b UW |
4333 | void |
4334 | append_flags_type_flag (struct type *type, int bitpos, char *name) | |
4335 | { | |
4336 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS); | |
4337 | gdb_assert (bitpos < TYPE_NFIELDS (type)); | |
4338 | gdb_assert (bitpos >= 0); | |
4339 | ||
4340 | if (name) | |
4341 | { | |
4342 | TYPE_FIELD_NAME (type, bitpos) = xstrdup (name); | |
945b3a32 | 4343 | SET_FIELD_BITPOS (TYPE_FIELD (type, bitpos), bitpos); |
e9bb382b UW |
4344 | } |
4345 | else | |
4346 | { | |
4347 | /* Don't show this field to the user. */ | |
945b3a32 | 4348 | SET_FIELD_BITPOS (TYPE_FIELD (type, bitpos), -1); |
e9bb382b UW |
4349 | } |
4350 | } | |
4351 | ||
4352 | /* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as | |
4353 | specified by CODE) associated with GDBARCH. NAME is the type name. */ | |
5212577a | 4354 | |
e9bb382b UW |
4355 | struct type * |
4356 | arch_composite_type (struct gdbarch *gdbarch, char *name, enum type_code code) | |
4357 | { | |
4358 | struct type *t; | |
d8734c88 | 4359 | |
e9bb382b UW |
4360 | gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION); |
4361 | t = arch_type (gdbarch, code, 0, NULL); | |
4362 | TYPE_TAG_NAME (t) = name; | |
4363 | INIT_CPLUS_SPECIFIC (t); | |
4364 | return t; | |
4365 | } | |
4366 | ||
4367 | /* Add new field with name NAME and type FIELD to composite type T. | |
f5dff777 DJ |
4368 | Do not set the field's position or adjust the type's length; |
4369 | the caller should do so. Return the new field. */ | |
5212577a | 4370 | |
f5dff777 DJ |
4371 | struct field * |
4372 | append_composite_type_field_raw (struct type *t, char *name, | |
4373 | struct type *field) | |
e9bb382b UW |
4374 | { |
4375 | struct field *f; | |
d8734c88 | 4376 | |
e9bb382b UW |
4377 | TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; |
4378 | TYPE_FIELDS (t) = xrealloc (TYPE_FIELDS (t), | |
4379 | sizeof (struct field) * TYPE_NFIELDS (t)); | |
4380 | f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); | |
4381 | memset (f, 0, sizeof f[0]); | |
4382 | FIELD_TYPE (f[0]) = field; | |
4383 | FIELD_NAME (f[0]) = name; | |
f5dff777 DJ |
4384 | return f; |
4385 | } | |
4386 | ||
4387 | /* Add new field with name NAME and type FIELD to composite type T. | |
4388 | ALIGNMENT (if non-zero) specifies the minimum field alignment. */ | |
5212577a | 4389 | |
f5dff777 DJ |
4390 | void |
4391 | append_composite_type_field_aligned (struct type *t, char *name, | |
4392 | struct type *field, int alignment) | |
4393 | { | |
4394 | struct field *f = append_composite_type_field_raw (t, name, field); | |
d8734c88 | 4395 | |
e9bb382b UW |
4396 | if (TYPE_CODE (t) == TYPE_CODE_UNION) |
4397 | { | |
4398 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) | |
4399 | TYPE_LENGTH (t) = TYPE_LENGTH (field); | |
4400 | } | |
4401 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
4402 | { | |
4403 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
4404 | if (TYPE_NFIELDS (t) > 1) | |
4405 | { | |
f41f5e61 PA |
4406 | SET_FIELD_BITPOS (f[0], |
4407 | (FIELD_BITPOS (f[-1]) | |
4408 | + (TYPE_LENGTH (FIELD_TYPE (f[-1])) | |
4409 | * TARGET_CHAR_BIT))); | |
e9bb382b UW |
4410 | |
4411 | if (alignment) | |
4412 | { | |
86c3c1fc AB |
4413 | int left; |
4414 | ||
4415 | alignment *= TARGET_CHAR_BIT; | |
4416 | left = FIELD_BITPOS (f[0]) % alignment; | |
d8734c88 | 4417 | |
e9bb382b UW |
4418 | if (left) |
4419 | { | |
f41f5e61 | 4420 | SET_FIELD_BITPOS (f[0], FIELD_BITPOS (f[0]) + (alignment - left)); |
86c3c1fc | 4421 | TYPE_LENGTH (t) += (alignment - left) / TARGET_CHAR_BIT; |
e9bb382b UW |
4422 | } |
4423 | } | |
4424 | } | |
4425 | } | |
4426 | } | |
4427 | ||
4428 | /* Add new field with name NAME and type FIELD to composite type T. */ | |
5212577a | 4429 | |
e9bb382b UW |
4430 | void |
4431 | append_composite_type_field (struct type *t, char *name, | |
4432 | struct type *field) | |
4433 | { | |
4434 | append_composite_type_field_aligned (t, name, field, 0); | |
4435 | } | |
4436 | ||
000177f0 AC |
4437 | static struct gdbarch_data *gdbtypes_data; |
4438 | ||
4439 | const struct builtin_type * | |
4440 | builtin_type (struct gdbarch *gdbarch) | |
4441 | { | |
4442 | return gdbarch_data (gdbarch, gdbtypes_data); | |
4443 | } | |
4444 | ||
4445 | static void * | |
4446 | gdbtypes_post_init (struct gdbarch *gdbarch) | |
4447 | { | |
4448 | struct builtin_type *builtin_type | |
4449 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); | |
4450 | ||
46bf5051 | 4451 | /* Basic types. */ |
e9bb382b UW |
4452 | builtin_type->builtin_void |
4453 | = arch_type (gdbarch, TYPE_CODE_VOID, 1, "void"); | |
4454 | builtin_type->builtin_char | |
4455 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
4456 | !gdbarch_char_signed (gdbarch), "char"); | |
4457 | builtin_type->builtin_signed_char | |
4458 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
4459 | 0, "signed char"); | |
4460 | builtin_type->builtin_unsigned_char | |
4461 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
4462 | 1, "unsigned char"); | |
4463 | builtin_type->builtin_short | |
4464 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
4465 | 0, "short"); | |
4466 | builtin_type->builtin_unsigned_short | |
4467 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
4468 | 1, "unsigned short"); | |
4469 | builtin_type->builtin_int | |
4470 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
4471 | 0, "int"); | |
4472 | builtin_type->builtin_unsigned_int | |
4473 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
4474 | 1, "unsigned int"); | |
4475 | builtin_type->builtin_long | |
4476 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
4477 | 0, "long"); | |
4478 | builtin_type->builtin_unsigned_long | |
4479 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
4480 | 1, "unsigned long"); | |
4481 | builtin_type->builtin_long_long | |
4482 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
4483 | 0, "long long"); | |
4484 | builtin_type->builtin_unsigned_long_long | |
4485 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
4486 | 1, "unsigned long long"); | |
70bd8e24 | 4487 | builtin_type->builtin_float |
e9bb382b | 4488 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), |
27067745 | 4489 | "float", gdbarch_float_format (gdbarch)); |
70bd8e24 | 4490 | builtin_type->builtin_double |
e9bb382b | 4491 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), |
27067745 | 4492 | "double", gdbarch_double_format (gdbarch)); |
70bd8e24 | 4493 | builtin_type->builtin_long_double |
e9bb382b | 4494 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), |
27067745 | 4495 | "long double", gdbarch_long_double_format (gdbarch)); |
70bd8e24 | 4496 | builtin_type->builtin_complex |
e9bb382b UW |
4497 | = arch_complex_type (gdbarch, "complex", |
4498 | builtin_type->builtin_float); | |
70bd8e24 | 4499 | builtin_type->builtin_double_complex |
e9bb382b UW |
4500 | = arch_complex_type (gdbarch, "double complex", |
4501 | builtin_type->builtin_double); | |
4502 | builtin_type->builtin_string | |
4503 | = arch_type (gdbarch, TYPE_CODE_STRING, 1, "string"); | |
4504 | builtin_type->builtin_bool | |
4505 | = arch_type (gdbarch, TYPE_CODE_BOOL, 1, "bool"); | |
000177f0 | 4506 | |
7678ef8f TJB |
4507 | /* The following three are about decimal floating point types, which |
4508 | are 32-bits, 64-bits and 128-bits respectively. */ | |
4509 | builtin_type->builtin_decfloat | |
e9bb382b | 4510 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 32 / 8, "_Decimal32"); |
7678ef8f | 4511 | builtin_type->builtin_decdouble |
e9bb382b | 4512 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 64 / 8, "_Decimal64"); |
7678ef8f | 4513 | builtin_type->builtin_declong |
e9bb382b | 4514 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 128 / 8, "_Decimal128"); |
7678ef8f | 4515 | |
69feb676 | 4516 | /* "True" character types. */ |
e9bb382b UW |
4517 | builtin_type->builtin_true_char |
4518 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 0, "true character"); | |
4519 | builtin_type->builtin_true_unsigned_char | |
4520 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 1, "true character"); | |
69feb676 | 4521 | |
df4df182 | 4522 | /* Fixed-size integer types. */ |
e9bb382b UW |
4523 | builtin_type->builtin_int0 |
4524 | = arch_integer_type (gdbarch, 0, 0, "int0_t"); | |
4525 | builtin_type->builtin_int8 | |
4526 | = arch_integer_type (gdbarch, 8, 0, "int8_t"); | |
4527 | builtin_type->builtin_uint8 | |
4528 | = arch_integer_type (gdbarch, 8, 1, "uint8_t"); | |
4529 | builtin_type->builtin_int16 | |
4530 | = arch_integer_type (gdbarch, 16, 0, "int16_t"); | |
4531 | builtin_type->builtin_uint16 | |
4532 | = arch_integer_type (gdbarch, 16, 1, "uint16_t"); | |
4533 | builtin_type->builtin_int32 | |
4534 | = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
4535 | builtin_type->builtin_uint32 | |
4536 | = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
4537 | builtin_type->builtin_int64 | |
4538 | = arch_integer_type (gdbarch, 64, 0, "int64_t"); | |
4539 | builtin_type->builtin_uint64 | |
4540 | = arch_integer_type (gdbarch, 64, 1, "uint64_t"); | |
4541 | builtin_type->builtin_int128 | |
4542 | = arch_integer_type (gdbarch, 128, 0, "int128_t"); | |
4543 | builtin_type->builtin_uint128 | |
4544 | = arch_integer_type (gdbarch, 128, 1, "uint128_t"); | |
2844d6b5 KW |
4545 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_int8) |= |
4546 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
4547 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_uint8) |= | |
4548 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
df4df182 | 4549 | |
9a22f0d0 PM |
4550 | /* Wide character types. */ |
4551 | builtin_type->builtin_char16 | |
4552 | = arch_integer_type (gdbarch, 16, 0, "char16_t"); | |
4553 | builtin_type->builtin_char32 | |
4554 | = arch_integer_type (gdbarch, 32, 0, "char32_t"); | |
4555 | ||
4556 | ||
46bf5051 | 4557 | /* Default data/code pointer types. */ |
e9bb382b UW |
4558 | builtin_type->builtin_data_ptr |
4559 | = lookup_pointer_type (builtin_type->builtin_void); | |
4560 | builtin_type->builtin_func_ptr | |
4561 | = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
0875794a JK |
4562 | builtin_type->builtin_func_func |
4563 | = lookup_function_type (builtin_type->builtin_func_ptr); | |
46bf5051 | 4564 | |
78267919 | 4565 | /* This type represents a GDB internal function. */ |
e9bb382b UW |
4566 | builtin_type->internal_fn |
4567 | = arch_type (gdbarch, TYPE_CODE_INTERNAL_FUNCTION, 0, | |
4568 | "<internal function>"); | |
78267919 | 4569 | |
e81e7f5e SC |
4570 | /* This type represents an xmethod. */ |
4571 | builtin_type->xmethod | |
4572 | = arch_type (gdbarch, TYPE_CODE_XMETHOD, 0, "<xmethod>"); | |
4573 | ||
46bf5051 UW |
4574 | return builtin_type; |
4575 | } | |
4576 | ||
46bf5051 UW |
4577 | /* This set of objfile-based types is intended to be used by symbol |
4578 | readers as basic types. */ | |
4579 | ||
4580 | static const struct objfile_data *objfile_type_data; | |
4581 | ||
4582 | const struct objfile_type * | |
4583 | objfile_type (struct objfile *objfile) | |
4584 | { | |
4585 | struct gdbarch *gdbarch; | |
4586 | struct objfile_type *objfile_type | |
4587 | = objfile_data (objfile, objfile_type_data); | |
4588 | ||
4589 | if (objfile_type) | |
4590 | return objfile_type; | |
4591 | ||
4592 | objfile_type = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
4593 | 1, struct objfile_type); | |
4594 | ||
4595 | /* Use the objfile architecture to determine basic type properties. */ | |
4596 | gdbarch = get_objfile_arch (objfile); | |
4597 | ||
4598 | /* Basic types. */ | |
4599 | objfile_type->builtin_void | |
4600 | = init_type (TYPE_CODE_VOID, 1, | |
4601 | 0, | |
4602 | "void", objfile); | |
4603 | ||
4604 | objfile_type->builtin_char | |
4605 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
4606 | (TYPE_FLAG_NOSIGN | |
4607 | | (gdbarch_char_signed (gdbarch) ? 0 : TYPE_FLAG_UNSIGNED)), | |
4608 | "char", objfile); | |
4609 | objfile_type->builtin_signed_char | |
4610 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
4611 | 0, | |
4612 | "signed char", objfile); | |
4613 | objfile_type->builtin_unsigned_char | |
4614 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
4615 | TYPE_FLAG_UNSIGNED, | |
4616 | "unsigned char", objfile); | |
4617 | objfile_type->builtin_short | |
4618 | = init_type (TYPE_CODE_INT, | |
4619 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
4620 | 0, "short", objfile); | |
4621 | objfile_type->builtin_unsigned_short | |
4622 | = init_type (TYPE_CODE_INT, | |
4623 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
4624 | TYPE_FLAG_UNSIGNED, "unsigned short", objfile); | |
4625 | objfile_type->builtin_int | |
4626 | = init_type (TYPE_CODE_INT, | |
4627 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
4628 | 0, "int", objfile); | |
4629 | objfile_type->builtin_unsigned_int | |
4630 | = init_type (TYPE_CODE_INT, | |
4631 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
4632 | TYPE_FLAG_UNSIGNED, "unsigned int", objfile); | |
4633 | objfile_type->builtin_long | |
4634 | = init_type (TYPE_CODE_INT, | |
4635 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
4636 | 0, "long", objfile); | |
4637 | objfile_type->builtin_unsigned_long | |
4638 | = init_type (TYPE_CODE_INT, | |
4639 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
4640 | TYPE_FLAG_UNSIGNED, "unsigned long", objfile); | |
4641 | objfile_type->builtin_long_long | |
4642 | = init_type (TYPE_CODE_INT, | |
4643 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
4644 | 0, "long long", objfile); | |
4645 | objfile_type->builtin_unsigned_long_long | |
4646 | = init_type (TYPE_CODE_INT, | |
4647 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
4648 | TYPE_FLAG_UNSIGNED, "unsigned long long", objfile); | |
4649 | ||
4650 | objfile_type->builtin_float | |
4651 | = init_type (TYPE_CODE_FLT, | |
4652 | gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, | |
4653 | 0, "float", objfile); | |
4654 | TYPE_FLOATFORMAT (objfile_type->builtin_float) | |
4655 | = gdbarch_float_format (gdbarch); | |
4656 | objfile_type->builtin_double | |
4657 | = init_type (TYPE_CODE_FLT, | |
4658 | gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
4659 | 0, "double", objfile); | |
4660 | TYPE_FLOATFORMAT (objfile_type->builtin_double) | |
4661 | = gdbarch_double_format (gdbarch); | |
4662 | objfile_type->builtin_long_double | |
4663 | = init_type (TYPE_CODE_FLT, | |
4664 | gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
4665 | 0, "long double", objfile); | |
4666 | TYPE_FLOATFORMAT (objfile_type->builtin_long_double) | |
4667 | = gdbarch_long_double_format (gdbarch); | |
4668 | ||
4669 | /* This type represents a type that was unrecognized in symbol read-in. */ | |
4670 | objfile_type->builtin_error | |
4671 | = init_type (TYPE_CODE_ERROR, 0, 0, "<unknown type>", objfile); | |
4672 | ||
4673 | /* The following set of types is used for symbols with no | |
4674 | debug information. */ | |
4675 | objfile_type->nodebug_text_symbol | |
4676 | = init_type (TYPE_CODE_FUNC, 1, 0, | |
4677 | "<text variable, no debug info>", objfile); | |
4678 | TYPE_TARGET_TYPE (objfile_type->nodebug_text_symbol) | |
4679 | = objfile_type->builtin_int; | |
0875794a JK |
4680 | objfile_type->nodebug_text_gnu_ifunc_symbol |
4681 | = init_type (TYPE_CODE_FUNC, 1, TYPE_FLAG_GNU_IFUNC, | |
4682 | "<text gnu-indirect-function variable, no debug info>", | |
4683 | objfile); | |
4684 | TYPE_TARGET_TYPE (objfile_type->nodebug_text_gnu_ifunc_symbol) | |
4685 | = objfile_type->nodebug_text_symbol; | |
4686 | objfile_type->nodebug_got_plt_symbol | |
4687 | = init_type (TYPE_CODE_PTR, gdbarch_addr_bit (gdbarch) / 8, 0, | |
4688 | "<text from jump slot in .got.plt, no debug info>", | |
4689 | objfile); | |
4690 | TYPE_TARGET_TYPE (objfile_type->nodebug_got_plt_symbol) | |
4691 | = objfile_type->nodebug_text_symbol; | |
46bf5051 UW |
4692 | objfile_type->nodebug_data_symbol |
4693 | = init_type (TYPE_CODE_INT, | |
4694 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
4695 | "<data variable, no debug info>", objfile); | |
4696 | objfile_type->nodebug_unknown_symbol | |
4697 | = init_type (TYPE_CODE_INT, 1, 0, | |
4698 | "<variable (not text or data), no debug info>", objfile); | |
4699 | objfile_type->nodebug_tls_symbol | |
4700 | = init_type (TYPE_CODE_INT, | |
4701 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
4702 | "<thread local variable, no debug info>", objfile); | |
000177f0 AC |
4703 | |
4704 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
0a7cfe2c | 4705 | the same. |
000177f0 AC |
4706 | |
4707 | The upshot is: | |
4708 | - gdb's `struct type' always describes the target's | |
4709 | representation. | |
4710 | - gdb's `struct value' objects should always hold values in | |
4711 | target form. | |
4712 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
4713 | address space that the assembler and linker work with. Thus, | |
4714 | since target_read_memory takes a CORE_ADDR as an argument, it | |
4715 | can access any memory on the target, even if the processor has | |
4716 | separate code and data address spaces. | |
4717 | ||
46bf5051 UW |
4718 | In this context, objfile_type->builtin_core_addr is a bit odd: |
4719 | it's a target type for a value the target will never see. It's | |
4720 | only used to hold the values of (typeless) linker symbols, which | |
4721 | are indeed in the unified virtual address space. */ | |
000177f0 | 4722 | |
46bf5051 UW |
4723 | objfile_type->builtin_core_addr |
4724 | = init_type (TYPE_CODE_INT, | |
4725 | gdbarch_addr_bit (gdbarch) / 8, | |
4726 | TYPE_FLAG_UNSIGNED, "__CORE_ADDR", objfile); | |
64c50499 | 4727 | |
46bf5051 UW |
4728 | set_objfile_data (objfile, objfile_type_data, objfile_type); |
4729 | return objfile_type; | |
000177f0 AC |
4730 | } |
4731 | ||
5212577a | 4732 | extern initialize_file_ftype _initialize_gdbtypes; |
46bf5051 | 4733 | |
c906108c | 4734 | void |
fba45db2 | 4735 | _initialize_gdbtypes (void) |
c906108c | 4736 | { |
5674de60 | 4737 | gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
46bf5051 | 4738 | objfile_type_data = register_objfile_data (); |
5674de60 | 4739 | |
ccce17b0 YQ |
4740 | add_setshow_zuinteger_cmd ("overload", no_class, &overload_debug, |
4741 | _("Set debugging of C++ overloading."), | |
4742 | _("Show debugging of C++ overloading."), | |
4743 | _("When enabled, ranking of the " | |
4744 | "functions is displayed."), | |
4745 | NULL, | |
4746 | show_overload_debug, | |
4747 | &setdebuglist, &showdebuglist); | |
5674de60 | 4748 | |
7ba81444 | 4749 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 | 4750 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3e43a32a MS |
4751 | &opaque_type_resolution, |
4752 | _("Set resolution of opaque struct/class/union" | |
4753 | " types (if set before loading symbols)."), | |
4754 | _("Show resolution of opaque struct/class/union" | |
4755 | " types (if set before loading symbols)."), | |
4756 | NULL, NULL, | |
5674de60 UW |
4757 | show_opaque_type_resolution, |
4758 | &setlist, &showlist); | |
a451cb65 KS |
4759 | |
4760 | /* Add an option to permit non-strict type checking. */ | |
4761 | add_setshow_boolean_cmd ("type", class_support, | |
4762 | &strict_type_checking, | |
4763 | _("Set strict type checking."), | |
4764 | _("Show strict type checking."), | |
4765 | NULL, NULL, | |
4766 | show_strict_type_checking, | |
4767 | &setchecklist, &showchecklist); | |
c906108c | 4768 | } |