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 | ||
f1660027 TT |
706 | /* Make a type without const, volatile, or restrict. */ |
707 | ||
708 | struct type * | |
709 | make_unqualified_type (struct type *type) | |
710 | { | |
711 | return make_qualified_type (type, | |
712 | (TYPE_INSTANCE_FLAGS (type) | |
713 | & ~(TYPE_INSTANCE_FLAG_CONST | |
714 | | TYPE_INSTANCE_FLAG_VOLATILE | |
715 | | TYPE_INSTANCE_FLAG_RESTRICT)), | |
716 | NULL); | |
717 | } | |
718 | ||
2fdde8f8 DJ |
719 | /* Replace the contents of ntype with the type *type. This changes the |
720 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
721 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 722 | |
cda6c68a JB |
723 | In order to build recursive types, it's inevitable that we'll need |
724 | to update types in place --- but this sort of indiscriminate | |
725 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
726 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
727 | clear if more steps are needed. */ | |
5212577a | 728 | |
dd6bda65 DJ |
729 | void |
730 | replace_type (struct type *ntype, struct type *type) | |
731 | { | |
ab5d3da6 | 732 | struct type *chain; |
dd6bda65 | 733 | |
ad766c0a JB |
734 | /* These two types had better be in the same objfile. Otherwise, |
735 | the assignment of one type's main type structure to the other | |
736 | will produce a type with references to objects (names; field | |
737 | lists; etc.) allocated on an objfile other than its own. */ | |
738 | gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (ntype)); | |
739 | ||
2fdde8f8 | 740 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 741 | |
7ba81444 MS |
742 | /* The type length is not a part of the main type. Update it for |
743 | each type on the variant chain. */ | |
ab5d3da6 | 744 | chain = ntype; |
5f61c20e JK |
745 | do |
746 | { | |
747 | /* Assert that this element of the chain has no address-class bits | |
748 | set in its flags. Such type variants might have type lengths | |
749 | which are supposed to be different from the non-address-class | |
750 | variants. This assertion shouldn't ever be triggered because | |
751 | symbol readers which do construct address-class variants don't | |
752 | call replace_type(). */ | |
753 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
754 | ||
755 | TYPE_LENGTH (chain) = TYPE_LENGTH (type); | |
756 | chain = TYPE_CHAIN (chain); | |
757 | } | |
758 | while (ntype != chain); | |
ab5d3da6 | 759 | |
2fdde8f8 DJ |
760 | /* Assert that the two types have equivalent instance qualifiers. |
761 | This should be true for at least all of our debug readers. */ | |
762 | gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type)); | |
dd6bda65 DJ |
763 | } |
764 | ||
c906108c SS |
765 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
766 | May need to construct such a type if this is the first use. | |
767 | The TYPE is the type of the member. The DOMAIN is the type | |
768 | of the aggregate that the member belongs to. */ | |
769 | ||
770 | struct type * | |
0d5de010 | 771 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 772 | { |
52f0bd74 | 773 | struct type *mtype; |
c906108c | 774 | |
e9bb382b | 775 | mtype = alloc_type_copy (type); |
0d5de010 | 776 | smash_to_memberptr_type (mtype, domain, type); |
c16abbde | 777 | return mtype; |
c906108c SS |
778 | } |
779 | ||
0d5de010 DJ |
780 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
781 | ||
782 | struct type * | |
783 | lookup_methodptr_type (struct type *to_type) | |
784 | { | |
785 | struct type *mtype; | |
786 | ||
e9bb382b | 787 | mtype = alloc_type_copy (to_type); |
0b92b5bb | 788 | smash_to_methodptr_type (mtype, to_type); |
0d5de010 DJ |
789 | return mtype; |
790 | } | |
791 | ||
7ba81444 MS |
792 | /* Allocate a stub method whose return type is TYPE. This apparently |
793 | happens for speed of symbol reading, since parsing out the | |
794 | arguments to the method is cpu-intensive, the way we are doing it. | |
795 | So, we will fill in arguments later. This always returns a fresh | |
796 | type. */ | |
c906108c SS |
797 | |
798 | struct type * | |
fba45db2 | 799 | allocate_stub_method (struct type *type) |
c906108c SS |
800 | { |
801 | struct type *mtype; | |
802 | ||
e9bb382b UW |
803 | mtype = alloc_type_copy (type); |
804 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; | |
805 | TYPE_LENGTH (mtype) = 1; | |
806 | TYPE_STUB (mtype) = 1; | |
c906108c SS |
807 | TYPE_TARGET_TYPE (mtype) = type; |
808 | /* _DOMAIN_TYPE (mtype) = unknown yet */ | |
c16abbde | 809 | return mtype; |
c906108c SS |
810 | } |
811 | ||
729efb13 SA |
812 | /* Create a range type with a dynamic range from LOW_BOUND to |
813 | HIGH_BOUND, inclusive. See create_range_type for further details. */ | |
c906108c SS |
814 | |
815 | struct type * | |
729efb13 SA |
816 | create_range_type (struct type *result_type, struct type *index_type, |
817 | const struct dynamic_prop *low_bound, | |
818 | const struct dynamic_prop *high_bound) | |
c906108c SS |
819 | { |
820 | if (result_type == NULL) | |
e9bb382b | 821 | result_type = alloc_type_copy (index_type); |
c906108c SS |
822 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; |
823 | TYPE_TARGET_TYPE (result_type) = index_type; | |
74a9bb82 | 824 | if (TYPE_STUB (index_type)) |
876cecd0 | 825 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c SS |
826 | else |
827 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
729efb13 | 828 | |
43bbcdc2 PH |
829 | TYPE_RANGE_DATA (result_type) = (struct range_bounds *) |
830 | TYPE_ZALLOC (result_type, sizeof (struct range_bounds)); | |
729efb13 SA |
831 | TYPE_RANGE_DATA (result_type)->low = *low_bound; |
832 | TYPE_RANGE_DATA (result_type)->high = *high_bound; | |
c906108c | 833 | |
729efb13 | 834 | if (low_bound->kind == PROP_CONST && low_bound->data.const_val >= 0) |
876cecd0 | 835 | TYPE_UNSIGNED (result_type) = 1; |
c906108c | 836 | |
45e44d27 JB |
837 | /* Ada allows the declaration of range types whose upper bound is |
838 | less than the lower bound, so checking the lower bound is not | |
839 | enough. Make sure we do not mark a range type whose upper bound | |
840 | is negative as unsigned. */ | |
841 | if (high_bound->kind == PROP_CONST && high_bound->data.const_val < 0) | |
842 | TYPE_UNSIGNED (result_type) = 0; | |
843 | ||
262452ec | 844 | return result_type; |
c906108c SS |
845 | } |
846 | ||
729efb13 SA |
847 | /* Create a range type using either a blank type supplied in |
848 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
849 | INDEX_TYPE. | |
850 | ||
851 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND | |
852 | to HIGH_BOUND, inclusive. | |
853 | ||
854 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
855 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
856 | ||
857 | struct type * | |
858 | create_static_range_type (struct type *result_type, struct type *index_type, | |
859 | LONGEST low_bound, LONGEST high_bound) | |
860 | { | |
861 | struct dynamic_prop low, high; | |
862 | ||
863 | low.kind = PROP_CONST; | |
864 | low.data.const_val = low_bound; | |
865 | ||
866 | high.kind = PROP_CONST; | |
867 | high.data.const_val = high_bound; | |
868 | ||
869 | result_type = create_range_type (result_type, index_type, &low, &high); | |
870 | ||
871 | return result_type; | |
872 | } | |
873 | ||
80180f79 SA |
874 | /* Predicate tests whether BOUNDS are static. Returns 1 if all bounds values |
875 | are static, otherwise returns 0. */ | |
876 | ||
877 | static int | |
878 | has_static_range (const struct range_bounds *bounds) | |
879 | { | |
880 | return (bounds->low.kind == PROP_CONST | |
881 | && bounds->high.kind == PROP_CONST); | |
882 | } | |
883 | ||
884 | ||
7ba81444 MS |
885 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
886 | TYPE. Return 1 if type is a range type, 0 if it is discrete (and | |
887 | bounds will fit in LONGEST), or -1 otherwise. */ | |
c906108c SS |
888 | |
889 | int | |
fba45db2 | 890 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c SS |
891 | { |
892 | CHECK_TYPEDEF (type); | |
893 | switch (TYPE_CODE (type)) | |
894 | { | |
895 | case TYPE_CODE_RANGE: | |
896 | *lowp = TYPE_LOW_BOUND (type); | |
897 | *highp = TYPE_HIGH_BOUND (type); | |
898 | return 1; | |
899 | case TYPE_CODE_ENUM: | |
900 | if (TYPE_NFIELDS (type) > 0) | |
901 | { | |
902 | /* The enums may not be sorted by value, so search all | |
0963b4bd | 903 | entries. */ |
c906108c SS |
904 | int i; |
905 | ||
14e75d8e | 906 | *lowp = *highp = TYPE_FIELD_ENUMVAL (type, 0); |
c906108c SS |
907 | for (i = 0; i < TYPE_NFIELDS (type); i++) |
908 | { | |
14e75d8e JK |
909 | if (TYPE_FIELD_ENUMVAL (type, i) < *lowp) |
910 | *lowp = TYPE_FIELD_ENUMVAL (type, i); | |
911 | if (TYPE_FIELD_ENUMVAL (type, i) > *highp) | |
912 | *highp = TYPE_FIELD_ENUMVAL (type, i); | |
c906108c SS |
913 | } |
914 | ||
7ba81444 | 915 | /* Set unsigned indicator if warranted. */ |
c5aa993b | 916 | if (*lowp >= 0) |
c906108c | 917 | { |
876cecd0 | 918 | TYPE_UNSIGNED (type) = 1; |
c906108c SS |
919 | } |
920 | } | |
921 | else | |
922 | { | |
923 | *lowp = 0; | |
924 | *highp = -1; | |
925 | } | |
926 | return 0; | |
927 | case TYPE_CODE_BOOL: | |
928 | *lowp = 0; | |
929 | *highp = 1; | |
930 | return 0; | |
931 | case TYPE_CODE_INT: | |
c5aa993b | 932 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
933 | return -1; |
934 | if (!TYPE_UNSIGNED (type)) | |
935 | { | |
c5aa993b | 936 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
937 | *highp = -*lowp - 1; |
938 | return 0; | |
939 | } | |
7ba81444 | 940 | /* ... fall through for unsigned ints ... */ |
c906108c SS |
941 | case TYPE_CODE_CHAR: |
942 | *lowp = 0; | |
943 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 | 944 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
7ba81444 | 945 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
c906108c SS |
946 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
947 | *highp = (*highp - 1) | *highp; | |
948 | return 0; | |
949 | default: | |
950 | return -1; | |
951 | } | |
952 | } | |
953 | ||
dbc98a8b KW |
954 | /* Assuming TYPE is a simple, non-empty array type, compute its upper |
955 | and lower bound. Save the low bound into LOW_BOUND if not NULL. | |
956 | Save the high bound into HIGH_BOUND if not NULL. | |
957 | ||
0963b4bd | 958 | Return 1 if the operation was successful. Return zero otherwise, |
dbc98a8b KW |
959 | in which case the values of LOW_BOUND and HIGH_BOUNDS are unmodified. |
960 | ||
961 | We now simply use get_discrete_bounds call to get the values | |
962 | of the low and high bounds. | |
963 | get_discrete_bounds can return three values: | |
964 | 1, meaning that index is a range, | |
965 | 0, meaning that index is a discrete type, | |
966 | or -1 for failure. */ | |
967 | ||
968 | int | |
969 | get_array_bounds (struct type *type, LONGEST *low_bound, LONGEST *high_bound) | |
970 | { | |
971 | struct type *index = TYPE_INDEX_TYPE (type); | |
972 | LONGEST low = 0; | |
973 | LONGEST high = 0; | |
974 | int res; | |
975 | ||
976 | if (index == NULL) | |
977 | return 0; | |
978 | ||
979 | res = get_discrete_bounds (index, &low, &high); | |
980 | if (res == -1) | |
981 | return 0; | |
982 | ||
983 | /* Check if the array bounds are undefined. */ | |
984 | if (res == 1 | |
985 | && ((low_bound && TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED (type)) | |
986 | || (high_bound && TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type)))) | |
987 | return 0; | |
988 | ||
989 | if (low_bound) | |
990 | *low_bound = low; | |
991 | ||
992 | if (high_bound) | |
993 | *high_bound = high; | |
994 | ||
995 | return 1; | |
996 | } | |
997 | ||
7ba81444 MS |
998 | /* Create an array type using either a blank type supplied in |
999 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
1000 | RANGE_TYPE. | |
c906108c SS |
1001 | |
1002 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
1003 | RANGE_TYPE. | |
1004 | ||
dc53a7ad JB |
1005 | If BIT_STRIDE is not zero, build a packed array type whose element |
1006 | size is BIT_STRIDE. Otherwise, ignore this parameter. | |
1007 | ||
7ba81444 MS |
1008 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1009 | sure it is TYPE_CODE_UNDEF before we bash it into an array | |
1010 | type? */ | |
c906108c SS |
1011 | |
1012 | struct type * | |
dc53a7ad JB |
1013 | create_array_type_with_stride (struct type *result_type, |
1014 | struct type *element_type, | |
1015 | struct type *range_type, | |
1016 | unsigned int bit_stride) | |
c906108c | 1017 | { |
c906108c | 1018 | if (result_type == NULL) |
e9bb382b UW |
1019 | result_type = alloc_type_copy (range_type); |
1020 | ||
c906108c SS |
1021 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
1022 | TYPE_TARGET_TYPE (result_type) = element_type; | |
80180f79 SA |
1023 | if (has_static_range (TYPE_RANGE_DATA (range_type))) |
1024 | { | |
1025 | LONGEST low_bound, high_bound; | |
1026 | ||
1027 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
1028 | low_bound = high_bound = 0; | |
1029 | CHECK_TYPEDEF (element_type); | |
1030 | /* Be careful when setting the array length. Ada arrays can be | |
1031 | empty arrays with the high_bound being smaller than the low_bound. | |
1032 | In such cases, the array length should be zero. */ | |
1033 | if (high_bound < low_bound) | |
1034 | TYPE_LENGTH (result_type) = 0; | |
1035 | else if (bit_stride > 0) | |
1036 | TYPE_LENGTH (result_type) = | |
1037 | (bit_stride * (high_bound - low_bound + 1) + 7) / 8; | |
1038 | else | |
1039 | TYPE_LENGTH (result_type) = | |
1040 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
1041 | } | |
ab0d6e0d | 1042 | else |
80180f79 SA |
1043 | { |
1044 | /* This type is dynamic and its length needs to be computed | |
1045 | on demand. In the meantime, avoid leaving the TYPE_LENGTH | |
1046 | undefined by setting it to zero. Although we are not expected | |
1047 | to trust TYPE_LENGTH in this case, setting the size to zero | |
1048 | allows us to avoid allocating objects of random sizes in case | |
1049 | we accidently do. */ | |
1050 | TYPE_LENGTH (result_type) = 0; | |
1051 | } | |
1052 | ||
c906108c SS |
1053 | TYPE_NFIELDS (result_type) = 1; |
1054 | TYPE_FIELDS (result_type) = | |
1deafd4e | 1055 | (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); |
262452ec | 1056 | TYPE_INDEX_TYPE (result_type) = range_type; |
c906108c | 1057 | TYPE_VPTR_FIELDNO (result_type) = -1; |
dc53a7ad JB |
1058 | if (bit_stride > 0) |
1059 | TYPE_FIELD_BITSIZE (result_type, 0) = bit_stride; | |
c906108c | 1060 | |
0963b4bd | 1061 | /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays. */ |
c906108c | 1062 | if (TYPE_LENGTH (result_type) == 0) |
876cecd0 | 1063 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c | 1064 | |
c16abbde | 1065 | return result_type; |
c906108c SS |
1066 | } |
1067 | ||
dc53a7ad JB |
1068 | /* Same as create_array_type_with_stride but with no bit_stride |
1069 | (BIT_STRIDE = 0), thus building an unpacked array. */ | |
1070 | ||
1071 | struct type * | |
1072 | create_array_type (struct type *result_type, | |
1073 | struct type *element_type, | |
1074 | struct type *range_type) | |
1075 | { | |
1076 | return create_array_type_with_stride (result_type, element_type, | |
1077 | range_type, 0); | |
1078 | } | |
1079 | ||
e3506a9f UW |
1080 | struct type * |
1081 | lookup_array_range_type (struct type *element_type, | |
63375b74 | 1082 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f | 1083 | { |
50810684 | 1084 | struct gdbarch *gdbarch = get_type_arch (element_type); |
e3506a9f UW |
1085 | struct type *index_type = builtin_type (gdbarch)->builtin_int; |
1086 | struct type *range_type | |
0c9c3474 | 1087 | = create_static_range_type (NULL, index_type, low_bound, high_bound); |
d8734c88 | 1088 | |
e3506a9f UW |
1089 | return create_array_type (NULL, element_type, range_type); |
1090 | } | |
1091 | ||
7ba81444 MS |
1092 | /* Create a string type using either a blank type supplied in |
1093 | RESULT_TYPE, or creating a new type. String types are similar | |
1094 | enough to array of char types that we can use create_array_type to | |
1095 | build the basic type and then bash it into a string type. | |
c906108c SS |
1096 | |
1097 | For fixed length strings, the range type contains 0 as the lower | |
1098 | bound and the length of the string minus one as the upper bound. | |
1099 | ||
7ba81444 MS |
1100 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1101 | sure it is TYPE_CODE_UNDEF before we bash it into a string | |
1102 | type? */ | |
c906108c SS |
1103 | |
1104 | struct type * | |
3b7538c0 UW |
1105 | create_string_type (struct type *result_type, |
1106 | struct type *string_char_type, | |
7ba81444 | 1107 | struct type *range_type) |
c906108c SS |
1108 | { |
1109 | result_type = create_array_type (result_type, | |
f290d38e | 1110 | string_char_type, |
c906108c SS |
1111 | range_type); |
1112 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
c16abbde | 1113 | return result_type; |
c906108c SS |
1114 | } |
1115 | ||
e3506a9f UW |
1116 | struct type * |
1117 | lookup_string_range_type (struct type *string_char_type, | |
63375b74 | 1118 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f UW |
1119 | { |
1120 | struct type *result_type; | |
d8734c88 | 1121 | |
e3506a9f UW |
1122 | result_type = lookup_array_range_type (string_char_type, |
1123 | low_bound, high_bound); | |
1124 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
1125 | return result_type; | |
1126 | } | |
1127 | ||
c906108c | 1128 | struct type * |
fba45db2 | 1129 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c | 1130 | { |
c906108c | 1131 | if (result_type == NULL) |
e9bb382b UW |
1132 | result_type = alloc_type_copy (domain_type); |
1133 | ||
c906108c SS |
1134 | TYPE_CODE (result_type) = TYPE_CODE_SET; |
1135 | TYPE_NFIELDS (result_type) = 1; | |
1deafd4e | 1136 | TYPE_FIELDS (result_type) = TYPE_ZALLOC (result_type, sizeof (struct field)); |
c906108c | 1137 | |
74a9bb82 | 1138 | if (!TYPE_STUB (domain_type)) |
c906108c | 1139 | { |
f9780d5b | 1140 | LONGEST low_bound, high_bound, bit_length; |
d8734c88 | 1141 | |
c906108c SS |
1142 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
1143 | low_bound = high_bound = 0; | |
1144 | bit_length = high_bound - low_bound + 1; | |
1145 | TYPE_LENGTH (result_type) | |
1146 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
f9780d5b | 1147 | if (low_bound >= 0) |
876cecd0 | 1148 | TYPE_UNSIGNED (result_type) = 1; |
c906108c SS |
1149 | } |
1150 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
1151 | ||
c16abbde | 1152 | return result_type; |
c906108c SS |
1153 | } |
1154 | ||
ea37ba09 DJ |
1155 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
1156 | and any array types nested inside it. */ | |
1157 | ||
1158 | void | |
1159 | make_vector_type (struct type *array_type) | |
1160 | { | |
1161 | struct type *inner_array, *elt_type; | |
1162 | int flags; | |
1163 | ||
1164 | /* Find the innermost array type, in case the array is | |
1165 | multi-dimensional. */ | |
1166 | inner_array = array_type; | |
1167 | while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY) | |
1168 | inner_array = TYPE_TARGET_TYPE (inner_array); | |
1169 | ||
1170 | elt_type = TYPE_TARGET_TYPE (inner_array); | |
1171 | if (TYPE_CODE (elt_type) == TYPE_CODE_INT) | |
1172 | { | |
2844d6b5 | 1173 | flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_INSTANCE_FLAG_NOTTEXT; |
ea37ba09 DJ |
1174 | elt_type = make_qualified_type (elt_type, flags, NULL); |
1175 | TYPE_TARGET_TYPE (inner_array) = elt_type; | |
1176 | } | |
1177 | ||
876cecd0 | 1178 | TYPE_VECTOR (array_type) = 1; |
ea37ba09 DJ |
1179 | } |
1180 | ||
794ac428 | 1181 | struct type * |
ac3aafc7 EZ |
1182 | init_vector_type (struct type *elt_type, int n) |
1183 | { | |
1184 | struct type *array_type; | |
d8734c88 | 1185 | |
e3506a9f | 1186 | array_type = lookup_array_range_type (elt_type, 0, n - 1); |
ea37ba09 | 1187 | make_vector_type (array_type); |
ac3aafc7 EZ |
1188 | return array_type; |
1189 | } | |
1190 | ||
0d5de010 DJ |
1191 | /* Smash TYPE to be a type of pointers to members of DOMAIN with type |
1192 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a | |
1193 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
1194 | TYPE doesn't include the offset (that's the value of the MEMBER | |
1195 | itself), but does include the structure type into which it points | |
1196 | (for some reason). | |
c906108c | 1197 | |
7ba81444 MS |
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 | |
c906108c SS |
1200 | allocated. */ |
1201 | ||
1202 | void | |
0d5de010 DJ |
1203 | smash_to_memberptr_type (struct type *type, struct type *domain, |
1204 | struct type *to_type) | |
c906108c | 1205 | { |
2fdde8f8 | 1206 | smash_type (type); |
c906108c SS |
1207 | TYPE_TARGET_TYPE (type) = to_type; |
1208 | TYPE_DOMAIN_TYPE (type) = domain; | |
0d5de010 DJ |
1209 | /* Assume that a data member pointer is the same size as a normal |
1210 | pointer. */ | |
50810684 UW |
1211 | TYPE_LENGTH (type) |
1212 | = gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT; | |
0d5de010 | 1213 | TYPE_CODE (type) = TYPE_CODE_MEMBERPTR; |
c906108c SS |
1214 | } |
1215 | ||
0b92b5bb TT |
1216 | /* Smash TYPE to be a type of pointer to methods type TO_TYPE. |
1217 | ||
1218 | When "smashing" the type, we preserve the objfile that the old type | |
1219 | pointed to, since we aren't changing where the type is actually | |
1220 | allocated. */ | |
1221 | ||
1222 | void | |
1223 | smash_to_methodptr_type (struct type *type, struct type *to_type) | |
1224 | { | |
1225 | smash_type (type); | |
1226 | TYPE_TARGET_TYPE (type) = to_type; | |
1227 | TYPE_DOMAIN_TYPE (type) = TYPE_DOMAIN_TYPE (to_type); | |
1228 | TYPE_LENGTH (type) = cplus_method_ptr_size (to_type); | |
1229 | TYPE_CODE (type) = TYPE_CODE_METHODPTR; | |
1230 | } | |
1231 | ||
c906108c SS |
1232 | /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE. |
1233 | METHOD just means `function that gets an extra "this" argument'. | |
1234 | ||
7ba81444 MS |
1235 | When "smashing" the type, we preserve the objfile that the old type |
1236 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1237 | allocated. */ |
1238 | ||
1239 | void | |
fba45db2 | 1240 | smash_to_method_type (struct type *type, struct type *domain, |
ad2f7632 DJ |
1241 | struct type *to_type, struct field *args, |
1242 | int nargs, int varargs) | |
c906108c | 1243 | { |
2fdde8f8 | 1244 | smash_type (type); |
c906108c SS |
1245 | TYPE_TARGET_TYPE (type) = to_type; |
1246 | TYPE_DOMAIN_TYPE (type) = domain; | |
ad2f7632 DJ |
1247 | TYPE_FIELDS (type) = args; |
1248 | TYPE_NFIELDS (type) = nargs; | |
1249 | if (varargs) | |
876cecd0 | 1250 | TYPE_VARARGS (type) = 1; |
c906108c SS |
1251 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
1252 | TYPE_CODE (type) = TYPE_CODE_METHOD; | |
1253 | } | |
1254 | ||
1255 | /* Return a typename for a struct/union/enum type without "struct ", | |
1256 | "union ", or "enum ". If the type has a NULL name, return NULL. */ | |
1257 | ||
0d5cff50 | 1258 | const char * |
aa1ee363 | 1259 | type_name_no_tag (const struct type *type) |
c906108c SS |
1260 | { |
1261 | if (TYPE_TAG_NAME (type) != NULL) | |
1262 | return TYPE_TAG_NAME (type); | |
1263 | ||
7ba81444 MS |
1264 | /* Is there code which expects this to return the name if there is |
1265 | no tag name? My guess is that this is mainly used for C++ in | |
1266 | cases where the two will always be the same. */ | |
c906108c SS |
1267 | return TYPE_NAME (type); |
1268 | } | |
1269 | ||
d8228535 JK |
1270 | /* A wrapper of type_name_no_tag which calls error if the type is anonymous. |
1271 | Since GCC PR debug/47510 DWARF provides associated information to detect the | |
1272 | anonymous class linkage name from its typedef. | |
1273 | ||
1274 | Parameter TYPE should not yet have CHECK_TYPEDEF applied, this function will | |
1275 | apply it itself. */ | |
1276 | ||
1277 | const char * | |
1278 | type_name_no_tag_or_error (struct type *type) | |
1279 | { | |
1280 | struct type *saved_type = type; | |
1281 | const char *name; | |
1282 | struct objfile *objfile; | |
1283 | ||
1284 | CHECK_TYPEDEF (type); | |
1285 | ||
1286 | name = type_name_no_tag (type); | |
1287 | if (name != NULL) | |
1288 | return name; | |
1289 | ||
1290 | name = type_name_no_tag (saved_type); | |
1291 | objfile = TYPE_OBJFILE (saved_type); | |
1292 | error (_("Invalid anonymous type %s [in module %s], GCC PR debug/47510 bug?"), | |
4262abfb JK |
1293 | name ? name : "<anonymous>", |
1294 | objfile ? objfile_name (objfile) : "<arch>"); | |
d8228535 JK |
1295 | } |
1296 | ||
7ba81444 MS |
1297 | /* Lookup a typedef or primitive type named NAME, visible in lexical |
1298 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
1299 | suitably defined. */ | |
c906108c SS |
1300 | |
1301 | struct type * | |
e6c014f2 | 1302 | lookup_typename (const struct language_defn *language, |
ddd49eee | 1303 | struct gdbarch *gdbarch, const char *name, |
34eaf542 | 1304 | const struct block *block, int noerr) |
c906108c | 1305 | { |
52f0bd74 | 1306 | struct symbol *sym; |
659c9f3a | 1307 | struct type *type; |
c906108c | 1308 | |
1994afbf DE |
1309 | sym = lookup_symbol_in_language (name, block, VAR_DOMAIN, |
1310 | language->la_language, NULL); | |
c51fe631 DE |
1311 | if (sym != NULL && SYMBOL_CLASS (sym) == LOC_TYPEDEF) |
1312 | return SYMBOL_TYPE (sym); | |
1313 | ||
c51fe631 DE |
1314 | if (noerr) |
1315 | return NULL; | |
1316 | error (_("No type named %s."), name); | |
c906108c SS |
1317 | } |
1318 | ||
1319 | struct type * | |
e6c014f2 | 1320 | lookup_unsigned_typename (const struct language_defn *language, |
0d5cff50 | 1321 | struct gdbarch *gdbarch, const char *name) |
c906108c SS |
1322 | { |
1323 | char *uns = alloca (strlen (name) + 10); | |
1324 | ||
1325 | strcpy (uns, "unsigned "); | |
1326 | strcpy (uns + 9, name); | |
e6c014f2 | 1327 | return lookup_typename (language, gdbarch, uns, (struct block *) NULL, 0); |
c906108c SS |
1328 | } |
1329 | ||
1330 | struct type * | |
e6c014f2 | 1331 | lookup_signed_typename (const struct language_defn *language, |
0d5cff50 | 1332 | struct gdbarch *gdbarch, const char *name) |
c906108c SS |
1333 | { |
1334 | struct type *t; | |
1335 | char *uns = alloca (strlen (name) + 8); | |
1336 | ||
1337 | strcpy (uns, "signed "); | |
1338 | strcpy (uns + 7, name); | |
e6c014f2 | 1339 | t = lookup_typename (language, gdbarch, uns, (struct block *) NULL, 1); |
7ba81444 | 1340 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
c906108c SS |
1341 | if (t != NULL) |
1342 | return t; | |
e6c014f2 | 1343 | return lookup_typename (language, gdbarch, name, (struct block *) NULL, 0); |
c906108c SS |
1344 | } |
1345 | ||
1346 | /* Lookup a structure type named "struct NAME", | |
1347 | visible in lexical block BLOCK. */ | |
1348 | ||
1349 | struct type * | |
270140bd | 1350 | lookup_struct (const char *name, const struct block *block) |
c906108c | 1351 | { |
52f0bd74 | 1352 | struct symbol *sym; |
c906108c | 1353 | |
2570f2b7 | 1354 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1355 | |
1356 | if (sym == NULL) | |
1357 | { | |
8a3fe4f8 | 1358 | error (_("No struct type named %s."), name); |
c906108c SS |
1359 | } |
1360 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1361 | { | |
7ba81444 MS |
1362 | error (_("This context has class, union or enum %s, not a struct."), |
1363 | name); | |
c906108c SS |
1364 | } |
1365 | return (SYMBOL_TYPE (sym)); | |
1366 | } | |
1367 | ||
1368 | /* Lookup a union type named "union NAME", | |
1369 | visible in lexical block BLOCK. */ | |
1370 | ||
1371 | struct type * | |
270140bd | 1372 | lookup_union (const char *name, const struct block *block) |
c906108c | 1373 | { |
52f0bd74 | 1374 | struct symbol *sym; |
c5aa993b | 1375 | struct type *t; |
c906108c | 1376 | |
2570f2b7 | 1377 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1378 | |
1379 | if (sym == NULL) | |
8a3fe4f8 | 1380 | error (_("No union type named %s."), name); |
c906108c | 1381 | |
c5aa993b | 1382 | t = SYMBOL_TYPE (sym); |
c906108c SS |
1383 | |
1384 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
c16abbde | 1385 | return t; |
c906108c | 1386 | |
7ba81444 MS |
1387 | /* If we get here, it's not a union. */ |
1388 | error (_("This context has class, struct or enum %s, not a union."), | |
1389 | name); | |
c906108c SS |
1390 | } |
1391 | ||
c906108c SS |
1392 | /* Lookup an enum type named "enum NAME", |
1393 | visible in lexical block BLOCK. */ | |
1394 | ||
1395 | struct type * | |
270140bd | 1396 | lookup_enum (const char *name, const struct block *block) |
c906108c | 1397 | { |
52f0bd74 | 1398 | struct symbol *sym; |
c906108c | 1399 | |
2570f2b7 | 1400 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1401 | if (sym == NULL) |
1402 | { | |
8a3fe4f8 | 1403 | error (_("No enum type named %s."), name); |
c906108c SS |
1404 | } |
1405 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
1406 | { | |
7ba81444 MS |
1407 | error (_("This context has class, struct or union %s, not an enum."), |
1408 | name); | |
c906108c SS |
1409 | } |
1410 | return (SYMBOL_TYPE (sym)); | |
1411 | } | |
1412 | ||
1413 | /* Lookup a template type named "template NAME<TYPE>", | |
1414 | visible in lexical block BLOCK. */ | |
1415 | ||
1416 | struct type * | |
7ba81444 | 1417 | lookup_template_type (char *name, struct type *type, |
270140bd | 1418 | const struct block *block) |
c906108c SS |
1419 | { |
1420 | struct symbol *sym; | |
7ba81444 MS |
1421 | char *nam = (char *) |
1422 | alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4); | |
d8734c88 | 1423 | |
c906108c SS |
1424 | strcpy (nam, name); |
1425 | strcat (nam, "<"); | |
0004e5a2 | 1426 | strcat (nam, TYPE_NAME (type)); |
0963b4bd | 1427 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1428 | |
2570f2b7 | 1429 | sym = lookup_symbol (nam, block, VAR_DOMAIN, 0); |
c906108c SS |
1430 | |
1431 | if (sym == NULL) | |
1432 | { | |
8a3fe4f8 | 1433 | error (_("No template type named %s."), name); |
c906108c SS |
1434 | } |
1435 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1436 | { | |
7ba81444 MS |
1437 | error (_("This context has class, union or enum %s, not a struct."), |
1438 | name); | |
c906108c SS |
1439 | } |
1440 | return (SYMBOL_TYPE (sym)); | |
1441 | } | |
1442 | ||
7ba81444 MS |
1443 | /* Given a type TYPE, lookup the type of the component of type named |
1444 | NAME. | |
c906108c | 1445 | |
7ba81444 MS |
1446 | TYPE can be either a struct or union, or a pointer or reference to |
1447 | a struct or union. If it is a pointer or reference, its target | |
1448 | type is automatically used. Thus '.' and '->' are interchangable, | |
1449 | as specified for the definitions of the expression element types | |
1450 | STRUCTOP_STRUCT and STRUCTOP_PTR. | |
c906108c SS |
1451 | |
1452 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
1453 | If NAME is the name of a baseclass type, return that type. */ | |
1454 | ||
1455 | struct type * | |
d7561cbb | 1456 | lookup_struct_elt_type (struct type *type, const char *name, int noerr) |
c906108c SS |
1457 | { |
1458 | int i; | |
c92817ce | 1459 | char *typename; |
c906108c SS |
1460 | |
1461 | for (;;) | |
1462 | { | |
1463 | CHECK_TYPEDEF (type); | |
1464 | if (TYPE_CODE (type) != TYPE_CODE_PTR | |
1465 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1466 | break; | |
1467 | type = TYPE_TARGET_TYPE (type); | |
1468 | } | |
1469 | ||
687d6395 MS |
1470 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
1471 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
c906108c | 1472 | { |
c92817ce TT |
1473 | typename = type_to_string (type); |
1474 | make_cleanup (xfree, typename); | |
1475 | error (_("Type %s is not a structure or union type."), typename); | |
c906108c SS |
1476 | } |
1477 | ||
1478 | #if 0 | |
7ba81444 MS |
1479 | /* FIXME: This change put in by Michael seems incorrect for the case |
1480 | where the structure tag name is the same as the member name. | |
0963b4bd | 1481 | I.e. when doing "ptype bell->bar" for "struct foo { int bar; int |
7ba81444 | 1482 | foo; } bell;" Disabled by fnf. */ |
c906108c SS |
1483 | { |
1484 | char *typename; | |
1485 | ||
1486 | typename = type_name_no_tag (type); | |
762f08a3 | 1487 | if (typename != NULL && strcmp (typename, name) == 0) |
c906108c SS |
1488 | return type; |
1489 | } | |
1490 | #endif | |
1491 | ||
1492 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1493 | { | |
0d5cff50 | 1494 | const char *t_field_name = TYPE_FIELD_NAME (type, i); |
c906108c | 1495 | |
db577aea | 1496 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c SS |
1497 | { |
1498 | return TYPE_FIELD_TYPE (type, i); | |
1499 | } | |
f5a010c0 PM |
1500 | else if (!t_field_name || *t_field_name == '\0') |
1501 | { | |
d8734c88 MS |
1502 | struct type *subtype |
1503 | = lookup_struct_elt_type (TYPE_FIELD_TYPE (type, i), name, 1); | |
1504 | ||
f5a010c0 PM |
1505 | if (subtype != NULL) |
1506 | return subtype; | |
1507 | } | |
c906108c SS |
1508 | } |
1509 | ||
1510 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1511 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1512 | { | |
1513 | struct type *t; | |
1514 | ||
9733fc94 | 1515 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 1); |
c906108c SS |
1516 | if (t != NULL) |
1517 | { | |
1518 | return t; | |
1519 | } | |
1520 | } | |
1521 | ||
1522 | if (noerr) | |
1523 | { | |
1524 | return NULL; | |
1525 | } | |
c5aa993b | 1526 | |
c92817ce TT |
1527 | typename = type_to_string (type); |
1528 | make_cleanup (xfree, typename); | |
1529 | error (_("Type %s has no component named %s."), typename, name); | |
c906108c SS |
1530 | } |
1531 | ||
ed3ef339 DE |
1532 | /* Store in *MAX the largest number representable by unsigned integer type |
1533 | TYPE. */ | |
1534 | ||
1535 | void | |
1536 | get_unsigned_type_max (struct type *type, ULONGEST *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 (ULONGEST)); | |
1543 | ||
1544 | /* Written this way to avoid overflow. */ | |
1545 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1546 | *max = ((((ULONGEST) 1 << (n - 1)) - 1) << 1) | 1; | |
1547 | } | |
1548 | ||
1549 | /* Store in *MIN, *MAX the smallest and largest numbers representable by | |
1550 | signed integer type TYPE. */ | |
1551 | ||
1552 | void | |
1553 | get_signed_type_minmax (struct type *type, LONGEST *min, LONGEST *max) | |
1554 | { | |
1555 | unsigned int n; | |
1556 | ||
1557 | CHECK_TYPEDEF (type); | |
1558 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && !TYPE_UNSIGNED (type)); | |
1559 | gdb_assert (TYPE_LENGTH (type) <= sizeof (LONGEST)); | |
1560 | ||
1561 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1562 | *min = -((ULONGEST) 1 << (n - 1)); | |
1563 | *max = ((ULONGEST) 1 << (n - 1)) - 1; | |
1564 | } | |
1565 | ||
81fe8080 DE |
1566 | /* Lookup the vptr basetype/fieldno values for TYPE. |
1567 | If found store vptr_basetype in *BASETYPEP if non-NULL, and return | |
1568 | vptr_fieldno. Also, if found and basetype is from the same objfile, | |
1569 | cache the results. | |
1570 | If not found, return -1 and ignore BASETYPEP. | |
1571 | Callers should be aware that in some cases (for example, | |
c906108c | 1572 | the type or one of its baseclasses is a stub type and we are |
d48cc9dd DJ |
1573 | debugging a .o file, or the compiler uses DWARF-2 and is not GCC), |
1574 | this function will not be able to find the | |
7ba81444 | 1575 | virtual function table pointer, and vptr_fieldno will remain -1 and |
81fe8080 | 1576 | vptr_basetype will remain NULL or incomplete. */ |
c906108c | 1577 | |
81fe8080 DE |
1578 | int |
1579 | get_vptr_fieldno (struct type *type, struct type **basetypep) | |
c906108c SS |
1580 | { |
1581 | CHECK_TYPEDEF (type); | |
1582 | ||
1583 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1584 | { | |
1585 | int i; | |
1586 | ||
7ba81444 MS |
1587 | /* We must start at zero in case the first (and only) baseclass |
1588 | is virtual (and hence we cannot share the table pointer). */ | |
c906108c SS |
1589 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1590 | { | |
81fe8080 DE |
1591 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
1592 | int fieldno; | |
1593 | struct type *basetype; | |
1594 | ||
1595 | fieldno = get_vptr_fieldno (baseclass, &basetype); | |
1596 | if (fieldno >= 0) | |
c906108c | 1597 | { |
81fe8080 | 1598 | /* If the type comes from a different objfile we can't cache |
0963b4bd | 1599 | it, it may have a different lifetime. PR 2384 */ |
5ef73790 | 1600 | if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype)) |
81fe8080 DE |
1601 | { |
1602 | TYPE_VPTR_FIELDNO (type) = fieldno; | |
1603 | TYPE_VPTR_BASETYPE (type) = basetype; | |
1604 | } | |
1605 | if (basetypep) | |
1606 | *basetypep = basetype; | |
1607 | return fieldno; | |
c906108c SS |
1608 | } |
1609 | } | |
81fe8080 DE |
1610 | |
1611 | /* Not found. */ | |
1612 | return -1; | |
1613 | } | |
1614 | else | |
1615 | { | |
1616 | if (basetypep) | |
1617 | *basetypep = TYPE_VPTR_BASETYPE (type); | |
1618 | return TYPE_VPTR_FIELDNO (type); | |
c906108c SS |
1619 | } |
1620 | } | |
1621 | ||
44e1a9eb DJ |
1622 | static void |
1623 | stub_noname_complaint (void) | |
1624 | { | |
e2e0b3e5 | 1625 | complaint (&symfile_complaints, _("stub type has NULL name")); |
44e1a9eb DJ |
1626 | } |
1627 | ||
d98b7a16 | 1628 | /* Worker for is_dynamic_type. */ |
80180f79 | 1629 | |
d98b7a16 TT |
1630 | static int |
1631 | is_dynamic_type_internal (struct type *type, int top_level) | |
80180f79 SA |
1632 | { |
1633 | type = check_typedef (type); | |
1634 | ||
d98b7a16 TT |
1635 | /* We only want to recognize references at the outermost level. */ |
1636 | if (top_level && TYPE_CODE (type) == TYPE_CODE_REF) | |
80180f79 SA |
1637 | type = check_typedef (TYPE_TARGET_TYPE (type)); |
1638 | ||
3cdcd0ce JB |
1639 | /* Types that have a dynamic TYPE_DATA_LOCATION are considered |
1640 | dynamic, even if the type itself is statically defined. | |
1641 | From a user's point of view, this may appear counter-intuitive; | |
1642 | but it makes sense in this context, because the point is to determine | |
1643 | whether any part of the type needs to be resolved before it can | |
1644 | be exploited. */ | |
1645 | if (TYPE_DATA_LOCATION (type) != NULL | |
1646 | && (TYPE_DATA_LOCATION_KIND (type) == PROP_LOCEXPR | |
1647 | || TYPE_DATA_LOCATION_KIND (type) == PROP_LOCLIST)) | |
1648 | return 1; | |
1649 | ||
80180f79 SA |
1650 | switch (TYPE_CODE (type)) |
1651 | { | |
6f8a3220 JB |
1652 | case TYPE_CODE_RANGE: |
1653 | return !has_static_range (TYPE_RANGE_DATA (type)); | |
6f8a3220 | 1654 | |
80180f79 SA |
1655 | case TYPE_CODE_ARRAY: |
1656 | { | |
80180f79 | 1657 | gdb_assert (TYPE_NFIELDS (type) == 1); |
6f8a3220 JB |
1658 | |
1659 | /* The array is dynamic if either the bounds are dynamic, | |
1660 | or the elements it contains have a dynamic contents. */ | |
d98b7a16 | 1661 | if (is_dynamic_type_internal (TYPE_INDEX_TYPE (type), 0)) |
80180f79 | 1662 | return 1; |
d98b7a16 | 1663 | return is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0); |
80180f79 | 1664 | } |
012370f6 TT |
1665 | |
1666 | case TYPE_CODE_STRUCT: | |
1667 | case TYPE_CODE_UNION: | |
1668 | { | |
1669 | int i; | |
1670 | ||
1671 | for (i = 0; i < TYPE_NFIELDS (type); ++i) | |
1672 | if (!field_is_static (&TYPE_FIELD (type, i)) | |
d98b7a16 | 1673 | && is_dynamic_type_internal (TYPE_FIELD_TYPE (type, i), 0)) |
012370f6 TT |
1674 | return 1; |
1675 | } | |
1676 | break; | |
80180f79 | 1677 | } |
92e2a17f TT |
1678 | |
1679 | return 0; | |
80180f79 SA |
1680 | } |
1681 | ||
d98b7a16 TT |
1682 | /* See gdbtypes.h. */ |
1683 | ||
1684 | int | |
1685 | is_dynamic_type (struct type *type) | |
1686 | { | |
1687 | return is_dynamic_type_internal (type, 1); | |
1688 | } | |
1689 | ||
1690 | static struct type *resolve_dynamic_type_internal (struct type *type, | |
1691 | CORE_ADDR addr, | |
1692 | int top_level); | |
1693 | ||
08412b07 JB |
1694 | /* Given a dynamic range type (dyn_range_type) and address, |
1695 | return a static version of that type. */ | |
d190df30 | 1696 | |
80180f79 | 1697 | static struct type * |
08412b07 | 1698 | resolve_dynamic_range (struct type *dyn_range_type, CORE_ADDR addr) |
80180f79 SA |
1699 | { |
1700 | CORE_ADDR value; | |
6f8a3220 | 1701 | struct type *static_range_type; |
80180f79 SA |
1702 | const struct dynamic_prop *prop; |
1703 | const struct dwarf2_locexpr_baton *baton; | |
1704 | struct dynamic_prop low_bound, high_bound; | |
1705 | ||
6f8a3220 | 1706 | gdb_assert (TYPE_CODE (dyn_range_type) == TYPE_CODE_RANGE); |
80180f79 | 1707 | |
6f8a3220 | 1708 | prop = &TYPE_RANGE_DATA (dyn_range_type)->low; |
08412b07 | 1709 | if (dwarf2_evaluate_property (prop, addr, &value)) |
80180f79 SA |
1710 | { |
1711 | low_bound.kind = PROP_CONST; | |
1712 | low_bound.data.const_val = value; | |
1713 | } | |
1714 | else | |
1715 | { | |
1716 | low_bound.kind = PROP_UNDEFINED; | |
1717 | low_bound.data.const_val = 0; | |
1718 | } | |
1719 | ||
6f8a3220 | 1720 | prop = &TYPE_RANGE_DATA (dyn_range_type)->high; |
08412b07 | 1721 | if (dwarf2_evaluate_property (prop, addr, &value)) |
80180f79 SA |
1722 | { |
1723 | high_bound.kind = PROP_CONST; | |
1724 | high_bound.data.const_val = value; | |
c451ebe5 | 1725 | |
6f8a3220 | 1726 | if (TYPE_RANGE_DATA (dyn_range_type)->flag_upper_bound_is_count) |
c451ebe5 SA |
1727 | high_bound.data.const_val |
1728 | = low_bound.data.const_val + high_bound.data.const_val - 1; | |
80180f79 SA |
1729 | } |
1730 | else | |
1731 | { | |
1732 | high_bound.kind = PROP_UNDEFINED; | |
1733 | high_bound.data.const_val = 0; | |
1734 | } | |
1735 | ||
6f8a3220 JB |
1736 | static_range_type = create_range_type (copy_type (dyn_range_type), |
1737 | TYPE_TARGET_TYPE (dyn_range_type), | |
1738 | &low_bound, &high_bound); | |
1739 | TYPE_RANGE_DATA (static_range_type)->flag_bound_evaluated = 1; | |
1740 | return static_range_type; | |
1741 | } | |
1742 | ||
1743 | /* Resolves dynamic bound values of an array type TYPE to static ones. | |
1744 | ADDRESS might be needed to resolve the subrange bounds, it is the location | |
1745 | of the associated array. */ | |
1746 | ||
1747 | static struct type * | |
08412b07 | 1748 | resolve_dynamic_array (struct type *type, CORE_ADDR addr) |
6f8a3220 JB |
1749 | { |
1750 | CORE_ADDR value; | |
1751 | struct type *elt_type; | |
1752 | struct type *range_type; | |
1753 | struct type *ary_dim; | |
1754 | ||
1755 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
1756 | ||
1757 | elt_type = type; | |
1758 | range_type = check_typedef (TYPE_INDEX_TYPE (elt_type)); | |
08412b07 | 1759 | range_type = resolve_dynamic_range (range_type, addr); |
6f8a3220 | 1760 | |
80180f79 SA |
1761 | ary_dim = check_typedef (TYPE_TARGET_TYPE (elt_type)); |
1762 | ||
1763 | if (ary_dim != NULL && TYPE_CODE (ary_dim) == TYPE_CODE_ARRAY) | |
08412b07 | 1764 | elt_type = resolve_dynamic_array (TYPE_TARGET_TYPE (type), addr); |
80180f79 SA |
1765 | else |
1766 | elt_type = TYPE_TARGET_TYPE (type); | |
1767 | ||
80180f79 SA |
1768 | return create_array_type (copy_type (type), |
1769 | elt_type, | |
1770 | range_type); | |
1771 | } | |
1772 | ||
012370f6 TT |
1773 | /* Resolve dynamic bounds of members of the union TYPE to static |
1774 | bounds. */ | |
1775 | ||
1776 | static struct type * | |
1777 | resolve_dynamic_union (struct type *type, CORE_ADDR addr) | |
1778 | { | |
1779 | struct type *resolved_type; | |
1780 | int i; | |
1781 | unsigned int max_len = 0; | |
1782 | ||
1783 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_UNION); | |
1784 | ||
1785 | resolved_type = copy_type (type); | |
1786 | TYPE_FIELDS (resolved_type) | |
1787 | = TYPE_ALLOC (resolved_type, | |
1788 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
1789 | memcpy (TYPE_FIELDS (resolved_type), | |
1790 | TYPE_FIELDS (type), | |
1791 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
1792 | for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i) | |
1793 | { | |
1794 | struct type *t; | |
1795 | ||
1796 | if (field_is_static (&TYPE_FIELD (type, i))) | |
1797 | continue; | |
1798 | ||
d98b7a16 TT |
1799 | t = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i), |
1800 | addr, 0); | |
012370f6 TT |
1801 | TYPE_FIELD_TYPE (resolved_type, i) = t; |
1802 | if (TYPE_LENGTH (t) > max_len) | |
1803 | max_len = TYPE_LENGTH (t); | |
1804 | } | |
1805 | ||
1806 | TYPE_LENGTH (resolved_type) = max_len; | |
1807 | return resolved_type; | |
1808 | } | |
1809 | ||
1810 | /* Resolve dynamic bounds of members of the struct TYPE to static | |
1811 | bounds. */ | |
1812 | ||
1813 | static struct type * | |
1814 | resolve_dynamic_struct (struct type *type, CORE_ADDR addr) | |
1815 | { | |
1816 | struct type *resolved_type; | |
1817 | int i; | |
6908c509 | 1818 | unsigned resolved_type_bit_length = 0; |
012370f6 TT |
1819 | |
1820 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT); | |
1821 | gdb_assert (TYPE_NFIELDS (type) > 0); | |
1822 | ||
1823 | resolved_type = copy_type (type); | |
1824 | TYPE_FIELDS (resolved_type) | |
1825 | = TYPE_ALLOC (resolved_type, | |
1826 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
1827 | memcpy (TYPE_FIELDS (resolved_type), | |
1828 | TYPE_FIELDS (type), | |
1829 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
1830 | for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i) | |
1831 | { | |
6908c509 | 1832 | unsigned new_bit_length; |
012370f6 TT |
1833 | |
1834 | if (field_is_static (&TYPE_FIELD (type, i))) | |
1835 | continue; | |
1836 | ||
6908c509 JB |
1837 | TYPE_FIELD_TYPE (resolved_type, i) |
1838 | = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i), | |
d98b7a16 | 1839 | addr, 0); |
012370f6 | 1840 | |
6908c509 JB |
1841 | /* As we know this field is not a static field, the field's |
1842 | field_loc_kind should be FIELD_LOC_KIND_BITPOS. Verify | |
1843 | this is the case, but only trigger a simple error rather | |
1844 | than an internal error if that fails. While failing | |
1845 | that verification indicates a bug in our code, the error | |
1846 | is not severe enough to suggest to the user he stops | |
1847 | his debugging session because of it. */ | |
1848 | if (TYPE_FIELD_LOC_KIND (resolved_type, i) != FIELD_LOC_KIND_BITPOS) | |
1849 | error (_("Cannot determine struct field location" | |
1850 | " (invalid location kind)")); | |
1851 | new_bit_length = TYPE_FIELD_BITPOS (resolved_type, i); | |
1852 | if (TYPE_FIELD_BITSIZE (resolved_type, i) != 0) | |
1853 | new_bit_length += TYPE_FIELD_BITSIZE (resolved_type, i); | |
1854 | else | |
1855 | new_bit_length += (TYPE_LENGTH (TYPE_FIELD_TYPE (resolved_type, i)) | |
1856 | * TARGET_CHAR_BIT); | |
1857 | ||
1858 | /* Normally, we would use the position and size of the last field | |
1859 | to determine the size of the enclosing structure. But GCC seems | |
1860 | to be encoding the position of some fields incorrectly when | |
1861 | the struct contains a dynamic field that is not placed last. | |
1862 | So we compute the struct size based on the field that has | |
1863 | the highest position + size - probably the best we can do. */ | |
1864 | if (new_bit_length > resolved_type_bit_length) | |
1865 | resolved_type_bit_length = new_bit_length; | |
012370f6 TT |
1866 | } |
1867 | ||
012370f6 | 1868 | TYPE_LENGTH (resolved_type) |
6908c509 JB |
1869 | = (resolved_type_bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; |
1870 | ||
012370f6 TT |
1871 | return resolved_type; |
1872 | } | |
1873 | ||
d98b7a16 | 1874 | /* Worker for resolved_dynamic_type. */ |
80180f79 | 1875 | |
d98b7a16 TT |
1876 | static struct type * |
1877 | resolve_dynamic_type_internal (struct type *type, CORE_ADDR addr, | |
1878 | int top_level) | |
80180f79 SA |
1879 | { |
1880 | struct type *real_type = check_typedef (type); | |
6f8a3220 | 1881 | struct type *resolved_type = type; |
3cdcd0ce JB |
1882 | const struct dynamic_prop *prop; |
1883 | CORE_ADDR value; | |
80180f79 | 1884 | |
d98b7a16 | 1885 | if (!is_dynamic_type_internal (real_type, top_level)) |
80180f79 SA |
1886 | return type; |
1887 | ||
5537b577 | 1888 | if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
6f8a3220 | 1889 | { |
cac9b138 JK |
1890 | resolved_type = copy_type (type); |
1891 | TYPE_TARGET_TYPE (resolved_type) | |
1892 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), addr, | |
1893 | top_level); | |
5537b577 JK |
1894 | } |
1895 | else | |
1896 | { | |
1897 | /* Before trying to resolve TYPE, make sure it is not a stub. */ | |
1898 | type = real_type; | |
012370f6 | 1899 | |
5537b577 JK |
1900 | switch (TYPE_CODE (type)) |
1901 | { | |
1902 | case TYPE_CODE_REF: | |
1903 | { | |
1904 | CORE_ADDR target_addr = read_memory_typed_address (addr, type); | |
1905 | ||
1906 | resolved_type = copy_type (type); | |
1907 | TYPE_TARGET_TYPE (resolved_type) | |
1908 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), | |
1909 | target_addr, top_level); | |
1910 | break; | |
1911 | } | |
1912 | ||
1913 | case TYPE_CODE_ARRAY: | |
1914 | resolved_type = resolve_dynamic_array (type, addr); | |
1915 | break; | |
1916 | ||
1917 | case TYPE_CODE_RANGE: | |
1918 | resolved_type = resolve_dynamic_range (type, addr); | |
1919 | break; | |
1920 | ||
1921 | case TYPE_CODE_UNION: | |
1922 | resolved_type = resolve_dynamic_union (type, addr); | |
1923 | break; | |
1924 | ||
1925 | case TYPE_CODE_STRUCT: | |
1926 | resolved_type = resolve_dynamic_struct (type, addr); | |
1927 | break; | |
1928 | } | |
6f8a3220 | 1929 | } |
80180f79 | 1930 | |
3cdcd0ce JB |
1931 | /* Resolve data_location attribute. */ |
1932 | prop = TYPE_DATA_LOCATION (resolved_type); | |
1933 | if (dwarf2_evaluate_property (prop, addr, &value)) | |
1934 | { | |
1935 | TYPE_DATA_LOCATION_ADDR (resolved_type) = value; | |
1936 | TYPE_DATA_LOCATION_KIND (resolved_type) = PROP_CONST; | |
1937 | } | |
1938 | else | |
1939 | TYPE_DATA_LOCATION (resolved_type) = NULL; | |
1940 | ||
80180f79 SA |
1941 | return resolved_type; |
1942 | } | |
1943 | ||
d98b7a16 TT |
1944 | /* See gdbtypes.h */ |
1945 | ||
1946 | struct type * | |
1947 | resolve_dynamic_type (struct type *type, CORE_ADDR addr) | |
1948 | { | |
1949 | return resolve_dynamic_type_internal (type, addr, 1); | |
1950 | } | |
1951 | ||
92163a10 JK |
1952 | /* Find the real type of TYPE. This function returns the real type, |
1953 | after removing all layers of typedefs, and completing opaque or stub | |
1954 | types. Completion changes the TYPE argument, but stripping of | |
1955 | typedefs does not. | |
1956 | ||
1957 | Instance flags (e.g. const/volatile) are preserved as typedefs are | |
1958 | stripped. If necessary a new qualified form of the underlying type | |
1959 | is created. | |
1960 | ||
1961 | NOTE: This will return a typedef if TYPE_TARGET_TYPE for the typedef has | |
1962 | not been computed and we're either in the middle of reading symbols, or | |
1963 | there was no name for the typedef in the debug info. | |
1964 | ||
9bc118a5 DE |
1965 | NOTE: Lookup of opaque types can throw errors for invalid symbol files. |
1966 | QUITs in the symbol reading code can also throw. | |
1967 | Thus this function can throw an exception. | |
1968 | ||
92163a10 JK |
1969 | If TYPE is a TYPE_CODE_TYPEDEF, its length is updated to the length of |
1970 | the target type. | |
c906108c SS |
1971 | |
1972 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
0963b4bd | 1973 | we can find a full definition in some other file. If so, copy this |
7ba81444 MS |
1974 | definition, so we can use it in future. There used to be a comment |
1975 | (but not any code) that if we don't find a full definition, we'd | |
1976 | set a flag so we don't spend time in the future checking the same | |
1977 | type. That would be a mistake, though--we might load in more | |
92163a10 | 1978 | symbols which contain a full definition for the type. */ |
c906108c SS |
1979 | |
1980 | struct type * | |
a02fd225 | 1981 | check_typedef (struct type *type) |
c906108c SS |
1982 | { |
1983 | struct type *orig_type = type; | |
92163a10 JK |
1984 | /* While we're removing typedefs, we don't want to lose qualifiers. |
1985 | E.g., const/volatile. */ | |
1986 | int instance_flags = TYPE_INSTANCE_FLAGS (type); | |
a02fd225 | 1987 | |
423c0af8 MS |
1988 | gdb_assert (type); |
1989 | ||
c906108c SS |
1990 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
1991 | { | |
1992 | if (!TYPE_TARGET_TYPE (type)) | |
1993 | { | |
0d5cff50 | 1994 | const char *name; |
c906108c SS |
1995 | struct symbol *sym; |
1996 | ||
1997 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 1998 | reading a symtab. Infinite recursion is one danger. */ |
c906108c | 1999 | if (currently_reading_symtab) |
92163a10 | 2000 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
2001 | |
2002 | name = type_name_no_tag (type); | |
7ba81444 MS |
2003 | /* FIXME: shouldn't we separately check the TYPE_NAME and |
2004 | the TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or | |
2005 | VAR_DOMAIN as appropriate? (this code was written before | |
2006 | TYPE_NAME and TYPE_TAG_NAME were separate). */ | |
c906108c SS |
2007 | if (name == NULL) |
2008 | { | |
23136709 | 2009 | stub_noname_complaint (); |
92163a10 | 2010 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2011 | } |
2570f2b7 | 2012 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0); |
c906108c SS |
2013 | if (sym) |
2014 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
7ba81444 | 2015 | else /* TYPE_CODE_UNDEF */ |
e9bb382b | 2016 | TYPE_TARGET_TYPE (type) = alloc_type_arch (get_type_arch (type)); |
c906108c SS |
2017 | } |
2018 | type = TYPE_TARGET_TYPE (type); | |
c906108c | 2019 | |
92163a10 JK |
2020 | /* Preserve the instance flags as we traverse down the typedef chain. |
2021 | ||
2022 | Handling address spaces/classes is nasty, what do we do if there's a | |
2023 | conflict? | |
2024 | E.g., what if an outer typedef marks the type as class_1 and an inner | |
2025 | typedef marks the type as class_2? | |
2026 | This is the wrong place to do such error checking. We leave it to | |
2027 | the code that created the typedef in the first place to flag the | |
2028 | error. We just pick the outer address space (akin to letting the | |
2029 | outer cast in a chain of casting win), instead of assuming | |
2030 | "it can't happen". */ | |
2031 | { | |
2032 | const int ALL_SPACES = (TYPE_INSTANCE_FLAG_CODE_SPACE | |
2033 | | TYPE_INSTANCE_FLAG_DATA_SPACE); | |
2034 | const int ALL_CLASSES = TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL; | |
2035 | int new_instance_flags = TYPE_INSTANCE_FLAGS (type); | |
2036 | ||
2037 | /* Treat code vs data spaces and address classes separately. */ | |
2038 | if ((instance_flags & ALL_SPACES) != 0) | |
2039 | new_instance_flags &= ~ALL_SPACES; | |
2040 | if ((instance_flags & ALL_CLASSES) != 0) | |
2041 | new_instance_flags &= ~ALL_CLASSES; | |
2042 | ||
2043 | instance_flags |= new_instance_flags; | |
2044 | } | |
2045 | } | |
a02fd225 | 2046 | |
7ba81444 MS |
2047 | /* If this is a struct/class/union with no fields, then check |
2048 | whether a full definition exists somewhere else. This is for | |
2049 | systems where a type definition with no fields is issued for such | |
2050 | types, instead of identifying them as stub types in the first | |
2051 | place. */ | |
c5aa993b | 2052 | |
7ba81444 MS |
2053 | if (TYPE_IS_OPAQUE (type) |
2054 | && opaque_type_resolution | |
2055 | && !currently_reading_symtab) | |
c906108c | 2056 | { |
0d5cff50 | 2057 | const char *name = type_name_no_tag (type); |
c5aa993b | 2058 | struct type *newtype; |
d8734c88 | 2059 | |
c906108c SS |
2060 | if (name == NULL) |
2061 | { | |
23136709 | 2062 | stub_noname_complaint (); |
92163a10 | 2063 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
2064 | } |
2065 | newtype = lookup_transparent_type (name); | |
ad766c0a | 2066 | |
c906108c | 2067 | if (newtype) |
ad766c0a | 2068 | { |
7ba81444 MS |
2069 | /* If the resolved type and the stub are in the same |
2070 | objfile, then replace the stub type with the real deal. | |
2071 | But if they're in separate objfiles, leave the stub | |
2072 | alone; we'll just look up the transparent type every time | |
2073 | we call check_typedef. We can't create pointers between | |
2074 | types allocated to different objfiles, since they may | |
2075 | have different lifetimes. Trying to copy NEWTYPE over to | |
2076 | TYPE's objfile is pointless, too, since you'll have to | |
2077 | move over any other types NEWTYPE refers to, which could | |
2078 | be an unbounded amount of stuff. */ | |
ad766c0a | 2079 | if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
92163a10 JK |
2080 | type = make_qualified_type (newtype, |
2081 | TYPE_INSTANCE_FLAGS (type), | |
2082 | type); | |
ad766c0a JB |
2083 | else |
2084 | type = newtype; | |
2085 | } | |
c906108c | 2086 | } |
7ba81444 MS |
2087 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
2088 | types. */ | |
74a9bb82 | 2089 | else if (TYPE_STUB (type) && !currently_reading_symtab) |
c906108c | 2090 | { |
0d5cff50 | 2091 | const char *name = type_name_no_tag (type); |
c906108c | 2092 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
176620f1 | 2093 | TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or VAR_DOMAIN |
7b83ea04 AC |
2094 | as appropriate? (this code was written before TYPE_NAME and |
2095 | TYPE_TAG_NAME were separate). */ | |
c906108c | 2096 | struct symbol *sym; |
d8734c88 | 2097 | |
c906108c SS |
2098 | if (name == NULL) |
2099 | { | |
23136709 | 2100 | stub_noname_complaint (); |
92163a10 | 2101 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2102 | } |
2570f2b7 | 2103 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0); |
c906108c | 2104 | if (sym) |
c26f2453 JB |
2105 | { |
2106 | /* Same as above for opaque types, we can replace the stub | |
92163a10 | 2107 | with the complete type only if they are in the same |
c26f2453 JB |
2108 | objfile. */ |
2109 | if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type)) | |
92163a10 JK |
2110 | type = make_qualified_type (SYMBOL_TYPE (sym), |
2111 | TYPE_INSTANCE_FLAGS (type), | |
2112 | type); | |
c26f2453 JB |
2113 | else |
2114 | type = SYMBOL_TYPE (sym); | |
2115 | } | |
c906108c SS |
2116 | } |
2117 | ||
74a9bb82 | 2118 | if (TYPE_TARGET_STUB (type)) |
c906108c SS |
2119 | { |
2120 | struct type *range_type; | |
2121 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); | |
2122 | ||
74a9bb82 | 2123 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
c5aa993b | 2124 | { |
73e2eb35 | 2125 | /* Nothing we can do. */ |
c5aa993b | 2126 | } |
c906108c SS |
2127 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
2128 | { | |
2129 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
876cecd0 | 2130 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
2131 | } |
2132 | } | |
92163a10 JK |
2133 | |
2134 | type = make_qualified_type (type, instance_flags, NULL); | |
2135 | ||
7ba81444 | 2136 | /* Cache TYPE_LENGTH for future use. */ |
c906108c | 2137 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
92163a10 | 2138 | |
c906108c SS |
2139 | return type; |
2140 | } | |
2141 | ||
7ba81444 | 2142 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
48319d1f | 2143 | occurs, silently return a void type. */ |
c91ecb25 | 2144 | |
b9362cc7 | 2145 | static struct type * |
48319d1f | 2146 | safe_parse_type (struct gdbarch *gdbarch, char *p, int length) |
c91ecb25 ND |
2147 | { |
2148 | struct ui_file *saved_gdb_stderr; | |
34365054 | 2149 | struct type *type = NULL; /* Initialize to keep gcc happy. */ |
8e7b59a5 | 2150 | volatile struct gdb_exception except; |
c91ecb25 | 2151 | |
7ba81444 | 2152 | /* Suppress error messages. */ |
c91ecb25 ND |
2153 | saved_gdb_stderr = gdb_stderr; |
2154 | gdb_stderr = ui_file_new (); | |
2155 | ||
7ba81444 | 2156 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
8e7b59a5 KS |
2157 | TRY_CATCH (except, RETURN_MASK_ERROR) |
2158 | { | |
2159 | type = parse_and_eval_type (p, length); | |
2160 | } | |
2161 | ||
2162 | if (except.reason < 0) | |
48319d1f | 2163 | type = builtin_type (gdbarch)->builtin_void; |
c91ecb25 | 2164 | |
7ba81444 | 2165 | /* Stop suppressing error messages. */ |
c91ecb25 ND |
2166 | ui_file_delete (gdb_stderr); |
2167 | gdb_stderr = saved_gdb_stderr; | |
2168 | ||
2169 | return type; | |
2170 | } | |
2171 | ||
c906108c SS |
2172 | /* Ugly hack to convert method stubs into method types. |
2173 | ||
7ba81444 MS |
2174 | He ain't kiddin'. This demangles the name of the method into a |
2175 | string including argument types, parses out each argument type, | |
2176 | generates a string casting a zero to that type, evaluates the | |
2177 | string, and stuffs the resulting type into an argtype vector!!! | |
2178 | Then it knows the type of the whole function (including argument | |
2179 | types for overloading), which info used to be in the stab's but was | |
2180 | removed to hack back the space required for them. */ | |
c906108c | 2181 | |
de17c821 | 2182 | static void |
fba45db2 | 2183 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c | 2184 | { |
50810684 | 2185 | struct gdbarch *gdbarch = get_type_arch (type); |
c906108c SS |
2186 | struct fn_field *f; |
2187 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
8de20a37 TT |
2188 | char *demangled_name = gdb_demangle (mangled_name, |
2189 | DMGL_PARAMS | DMGL_ANSI); | |
c906108c SS |
2190 | char *argtypetext, *p; |
2191 | int depth = 0, argcount = 1; | |
ad2f7632 | 2192 | struct field *argtypes; |
c906108c SS |
2193 | struct type *mtype; |
2194 | ||
2195 | /* Make sure we got back a function string that we can use. */ | |
2196 | if (demangled_name) | |
2197 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
2198 | else |
2199 | p = NULL; | |
c906108c SS |
2200 | |
2201 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
2202 | error (_("Internal: Cannot demangle mangled name `%s'."), |
2203 | mangled_name); | |
c906108c SS |
2204 | |
2205 | /* Now, read in the parameters that define this type. */ | |
2206 | p += 1; | |
2207 | argtypetext = p; | |
2208 | while (*p) | |
2209 | { | |
070ad9f0 | 2210 | if (*p == '(' || *p == '<') |
c906108c SS |
2211 | { |
2212 | depth += 1; | |
2213 | } | |
070ad9f0 | 2214 | else if (*p == ')' || *p == '>') |
c906108c SS |
2215 | { |
2216 | depth -= 1; | |
2217 | } | |
2218 | else if (*p == ',' && depth == 0) | |
2219 | { | |
2220 | argcount += 1; | |
2221 | } | |
2222 | ||
2223 | p += 1; | |
2224 | } | |
2225 | ||
ad2f7632 DJ |
2226 | /* If we read one argument and it was ``void'', don't count it. */ |
2227 | if (strncmp (argtypetext, "(void)", 6) == 0) | |
2228 | argcount -= 1; | |
c906108c | 2229 | |
ad2f7632 DJ |
2230 | /* We need one extra slot, for the THIS pointer. */ |
2231 | ||
2232 | argtypes = (struct field *) | |
2233 | TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); | |
c906108c | 2234 | p = argtypetext; |
4a1970e4 DJ |
2235 | |
2236 | /* Add THIS pointer for non-static methods. */ | |
2237 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
2238 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
2239 | argcount = 0; | |
2240 | else | |
2241 | { | |
ad2f7632 | 2242 | argtypes[0].type = lookup_pointer_type (type); |
4a1970e4 DJ |
2243 | argcount = 1; |
2244 | } | |
c906108c | 2245 | |
0963b4bd | 2246 | if (*p != ')') /* () means no args, skip while. */ |
c906108c SS |
2247 | { |
2248 | depth = 0; | |
2249 | while (*p) | |
2250 | { | |
2251 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
2252 | { | |
ad2f7632 DJ |
2253 | /* Avoid parsing of ellipsis, they will be handled below. |
2254 | Also avoid ``void'' as above. */ | |
2255 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 | |
2256 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 2257 | { |
ad2f7632 | 2258 | argtypes[argcount].type = |
48319d1f | 2259 | safe_parse_type (gdbarch, argtypetext, p - argtypetext); |
c906108c SS |
2260 | argcount += 1; |
2261 | } | |
2262 | argtypetext = p + 1; | |
2263 | } | |
2264 | ||
070ad9f0 | 2265 | if (*p == '(' || *p == '<') |
c906108c SS |
2266 | { |
2267 | depth += 1; | |
2268 | } | |
070ad9f0 | 2269 | else if (*p == ')' || *p == '>') |
c906108c SS |
2270 | { |
2271 | depth -= 1; | |
2272 | } | |
2273 | ||
2274 | p += 1; | |
2275 | } | |
2276 | } | |
2277 | ||
c906108c SS |
2278 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
2279 | ||
2280 | /* Now update the old "stub" type into a real type. */ | |
2281 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
2282 | TYPE_DOMAIN_TYPE (mtype) = type; | |
ad2f7632 DJ |
2283 | TYPE_FIELDS (mtype) = argtypes; |
2284 | TYPE_NFIELDS (mtype) = argcount; | |
876cecd0 | 2285 | TYPE_STUB (mtype) = 0; |
c906108c | 2286 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
ad2f7632 | 2287 | if (p[-2] == '.') |
876cecd0 | 2288 | TYPE_VARARGS (mtype) = 1; |
ad2f7632 DJ |
2289 | |
2290 | xfree (demangled_name); | |
c906108c SS |
2291 | } |
2292 | ||
7ba81444 MS |
2293 | /* This is the external interface to check_stub_method, above. This |
2294 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
2295 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
2296 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
2297 | correct. | |
de17c821 DJ |
2298 | |
2299 | This function unfortunately can not die until stabs do. */ | |
2300 | ||
2301 | void | |
2302 | check_stub_method_group (struct type *type, int method_id) | |
2303 | { | |
2304 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
2305 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
f710f4fc | 2306 | int j, found_stub = 0; |
de17c821 DJ |
2307 | |
2308 | for (j = 0; j < len; j++) | |
2309 | if (TYPE_FN_FIELD_STUB (f, j)) | |
2310 | { | |
2311 | found_stub = 1; | |
2312 | check_stub_method (type, method_id, j); | |
2313 | } | |
2314 | ||
7ba81444 MS |
2315 | /* GNU v3 methods with incorrect names were corrected when we read |
2316 | in type information, because it was cheaper to do it then. The | |
2317 | only GNU v2 methods with incorrect method names are operators and | |
2318 | destructors; destructors were also corrected when we read in type | |
2319 | information. | |
de17c821 DJ |
2320 | |
2321 | Therefore the only thing we need to handle here are v2 operator | |
2322 | names. */ | |
2323 | if (found_stub && strncmp (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z", 2) != 0) | |
2324 | { | |
2325 | int ret; | |
2326 | char dem_opname[256]; | |
2327 | ||
7ba81444 MS |
2328 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
2329 | method_id), | |
de17c821 DJ |
2330 | dem_opname, DMGL_ANSI); |
2331 | if (!ret) | |
7ba81444 MS |
2332 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
2333 | method_id), | |
de17c821 DJ |
2334 | dem_opname, 0); |
2335 | if (ret) | |
2336 | TYPE_FN_FIELDLIST_NAME (type, method_id) = xstrdup (dem_opname); | |
2337 | } | |
2338 | } | |
2339 | ||
9655fd1a JK |
2340 | /* Ensure it is in .rodata (if available) by workarounding GCC PR 44690. */ |
2341 | const struct cplus_struct_type cplus_struct_default = { }; | |
c906108c SS |
2342 | |
2343 | void | |
fba45db2 | 2344 | allocate_cplus_struct_type (struct type *type) |
c906108c | 2345 | { |
b4ba55a1 JB |
2346 | if (HAVE_CPLUS_STRUCT (type)) |
2347 | /* Structure was already allocated. Nothing more to do. */ | |
2348 | return; | |
2349 | ||
2350 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF; | |
2351 | TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
2352 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
2353 | *(TYPE_RAW_CPLUS_SPECIFIC (type)) = cplus_struct_default; | |
c906108c SS |
2354 | } |
2355 | ||
b4ba55a1 JB |
2356 | const struct gnat_aux_type gnat_aux_default = |
2357 | { NULL }; | |
2358 | ||
2359 | /* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF, | |
2360 | and allocate the associated gnat-specific data. The gnat-specific | |
2361 | data is also initialized to gnat_aux_default. */ | |
5212577a | 2362 | |
b4ba55a1 JB |
2363 | void |
2364 | allocate_gnat_aux_type (struct type *type) | |
2365 | { | |
2366 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF; | |
2367 | TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) | |
2368 | TYPE_ALLOC (type, sizeof (struct gnat_aux_type)); | |
2369 | *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default; | |
2370 | } | |
2371 | ||
c906108c SS |
2372 | /* Helper function to initialize the standard scalar types. |
2373 | ||
86f62fd7 TT |
2374 | If NAME is non-NULL, then it is used to initialize the type name. |
2375 | Note that NAME is not copied; it is required to have a lifetime at | |
2376 | least as long as OBJFILE. */ | |
c906108c SS |
2377 | |
2378 | struct type * | |
7ba81444 | 2379 | init_type (enum type_code code, int length, int flags, |
748e18ae | 2380 | const char *name, struct objfile *objfile) |
c906108c | 2381 | { |
52f0bd74 | 2382 | struct type *type; |
c906108c SS |
2383 | |
2384 | type = alloc_type (objfile); | |
2385 | TYPE_CODE (type) = code; | |
2386 | TYPE_LENGTH (type) = length; | |
876cecd0 TT |
2387 | |
2388 | gdb_assert (!(flags & (TYPE_FLAG_MIN - 1))); | |
2389 | if (flags & TYPE_FLAG_UNSIGNED) | |
2390 | TYPE_UNSIGNED (type) = 1; | |
2391 | if (flags & TYPE_FLAG_NOSIGN) | |
2392 | TYPE_NOSIGN (type) = 1; | |
2393 | if (flags & TYPE_FLAG_STUB) | |
2394 | TYPE_STUB (type) = 1; | |
2395 | if (flags & TYPE_FLAG_TARGET_STUB) | |
2396 | TYPE_TARGET_STUB (type) = 1; | |
2397 | if (flags & TYPE_FLAG_STATIC) | |
2398 | TYPE_STATIC (type) = 1; | |
2399 | if (flags & TYPE_FLAG_PROTOTYPED) | |
2400 | TYPE_PROTOTYPED (type) = 1; | |
2401 | if (flags & TYPE_FLAG_INCOMPLETE) | |
2402 | TYPE_INCOMPLETE (type) = 1; | |
2403 | if (flags & TYPE_FLAG_VARARGS) | |
2404 | TYPE_VARARGS (type) = 1; | |
2405 | if (flags & TYPE_FLAG_VECTOR) | |
2406 | TYPE_VECTOR (type) = 1; | |
2407 | if (flags & TYPE_FLAG_STUB_SUPPORTED) | |
2408 | TYPE_STUB_SUPPORTED (type) = 1; | |
876cecd0 TT |
2409 | if (flags & TYPE_FLAG_FIXED_INSTANCE) |
2410 | TYPE_FIXED_INSTANCE (type) = 1; | |
0875794a JK |
2411 | if (flags & TYPE_FLAG_GNU_IFUNC) |
2412 | TYPE_GNU_IFUNC (type) = 1; | |
876cecd0 | 2413 | |
86f62fd7 | 2414 | TYPE_NAME (type) = name; |
c906108c SS |
2415 | |
2416 | /* C++ fancies. */ | |
2417 | ||
973ccf8b | 2418 | if (name && strcmp (name, "char") == 0) |
876cecd0 | 2419 | TYPE_NOSIGN (type) = 1; |
973ccf8b | 2420 | |
b4ba55a1 | 2421 | switch (code) |
c906108c | 2422 | { |
b4ba55a1 JB |
2423 | case TYPE_CODE_STRUCT: |
2424 | case TYPE_CODE_UNION: | |
2425 | case TYPE_CODE_NAMESPACE: | |
2426 | INIT_CPLUS_SPECIFIC (type); | |
2427 | break; | |
2428 | case TYPE_CODE_FLT: | |
2429 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT; | |
2430 | break; | |
2431 | case TYPE_CODE_FUNC: | |
b6cdc2c1 | 2432 | INIT_FUNC_SPECIFIC (type); |
b4ba55a1 | 2433 | break; |
c906108c | 2434 | } |
c16abbde | 2435 | return type; |
c906108c | 2436 | } |
5212577a DE |
2437 | \f |
2438 | /* Queries on types. */ | |
c906108c | 2439 | |
c906108c | 2440 | int |
fba45db2 | 2441 | can_dereference (struct type *t) |
c906108c | 2442 | { |
7ba81444 MS |
2443 | /* FIXME: Should we return true for references as well as |
2444 | pointers? */ | |
c906108c SS |
2445 | CHECK_TYPEDEF (t); |
2446 | return | |
2447 | (t != NULL | |
2448 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
2449 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
2450 | } | |
2451 | ||
adf40b2e | 2452 | int |
fba45db2 | 2453 | is_integral_type (struct type *t) |
adf40b2e JM |
2454 | { |
2455 | CHECK_TYPEDEF (t); | |
2456 | return | |
2457 | ((t != NULL) | |
d4f3574e SS |
2458 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
2459 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
4f2aea11 | 2460 | || (TYPE_CODE (t) == TYPE_CODE_FLAGS) |
d4f3574e SS |
2461 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) |
2462 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
2463 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
2464 | } |
2465 | ||
e09342b5 TJB |
2466 | /* Return true if TYPE is scalar. */ |
2467 | ||
2468 | static int | |
2469 | is_scalar_type (struct type *type) | |
2470 | { | |
2471 | CHECK_TYPEDEF (type); | |
2472 | ||
2473 | switch (TYPE_CODE (type)) | |
2474 | { | |
2475 | case TYPE_CODE_ARRAY: | |
2476 | case TYPE_CODE_STRUCT: | |
2477 | case TYPE_CODE_UNION: | |
2478 | case TYPE_CODE_SET: | |
2479 | case TYPE_CODE_STRING: | |
e09342b5 TJB |
2480 | return 0; |
2481 | default: | |
2482 | return 1; | |
2483 | } | |
2484 | } | |
2485 | ||
2486 | /* Return true if T is scalar, or a composite type which in practice has | |
90e4670f TJB |
2487 | the memory layout of a scalar type. E.g., an array or struct with only |
2488 | one scalar element inside it, or a union with only scalar elements. */ | |
e09342b5 TJB |
2489 | |
2490 | int | |
2491 | is_scalar_type_recursive (struct type *t) | |
2492 | { | |
2493 | CHECK_TYPEDEF (t); | |
2494 | ||
2495 | if (is_scalar_type (t)) | |
2496 | return 1; | |
2497 | /* Are we dealing with an array or string of known dimensions? */ | |
2498 | else if ((TYPE_CODE (t) == TYPE_CODE_ARRAY | |
2499 | || TYPE_CODE (t) == TYPE_CODE_STRING) && TYPE_NFIELDS (t) == 1 | |
2500 | && TYPE_CODE (TYPE_INDEX_TYPE (t)) == TYPE_CODE_RANGE) | |
2501 | { | |
2502 | LONGEST low_bound, high_bound; | |
2503 | struct type *elt_type = check_typedef (TYPE_TARGET_TYPE (t)); | |
2504 | ||
2505 | get_discrete_bounds (TYPE_INDEX_TYPE (t), &low_bound, &high_bound); | |
2506 | ||
2507 | return high_bound == low_bound && is_scalar_type_recursive (elt_type); | |
2508 | } | |
2509 | /* Are we dealing with a struct with one element? */ | |
2510 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT && TYPE_NFIELDS (t) == 1) | |
2511 | return is_scalar_type_recursive (TYPE_FIELD_TYPE (t, 0)); | |
2512 | else if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
2513 | { | |
2514 | int i, n = TYPE_NFIELDS (t); | |
2515 | ||
2516 | /* If all elements of the union are scalar, then the union is scalar. */ | |
2517 | for (i = 0; i < n; i++) | |
2518 | if (!is_scalar_type_recursive (TYPE_FIELD_TYPE (t, i))) | |
2519 | return 0; | |
2520 | ||
2521 | return 1; | |
2522 | } | |
2523 | ||
2524 | return 0; | |
2525 | } | |
2526 | ||
6c659fc2 SC |
2527 | /* Return true is T is a class or a union. False otherwise. */ |
2528 | ||
2529 | int | |
2530 | class_or_union_p (const struct type *t) | |
2531 | { | |
2532 | return (TYPE_CODE (t) == TYPE_CODE_STRUCT | |
2533 | || TYPE_CODE (t) == TYPE_CODE_UNION); | |
2534 | } | |
2535 | ||
4e8f195d TT |
2536 | /* A helper function which returns true if types A and B represent the |
2537 | "same" class type. This is true if the types have the same main | |
2538 | type, or the same name. */ | |
2539 | ||
2540 | int | |
2541 | class_types_same_p (const struct type *a, const struct type *b) | |
2542 | { | |
2543 | return (TYPE_MAIN_TYPE (a) == TYPE_MAIN_TYPE (b) | |
2544 | || (TYPE_NAME (a) && TYPE_NAME (b) | |
2545 | && !strcmp (TYPE_NAME (a), TYPE_NAME (b)))); | |
2546 | } | |
2547 | ||
a9d5ef47 SW |
2548 | /* If BASE is an ancestor of DCLASS return the distance between them. |
2549 | otherwise return -1; | |
2550 | eg: | |
2551 | ||
2552 | class A {}; | |
2553 | class B: public A {}; | |
2554 | class C: public B {}; | |
2555 | class D: C {}; | |
2556 | ||
2557 | distance_to_ancestor (A, A, 0) = 0 | |
2558 | distance_to_ancestor (A, B, 0) = 1 | |
2559 | distance_to_ancestor (A, C, 0) = 2 | |
2560 | distance_to_ancestor (A, D, 0) = 3 | |
2561 | ||
2562 | If PUBLIC is 1 then only public ancestors are considered, | |
2563 | and the function returns the distance only if BASE is a public ancestor | |
2564 | of DCLASS. | |
2565 | Eg: | |
2566 | ||
0963b4bd | 2567 | distance_to_ancestor (A, D, 1) = -1. */ |
c906108c | 2568 | |
0526b37a | 2569 | static int |
a9d5ef47 | 2570 | distance_to_ancestor (struct type *base, struct type *dclass, int public) |
c906108c SS |
2571 | { |
2572 | int i; | |
a9d5ef47 | 2573 | int d; |
c5aa993b | 2574 | |
c906108c SS |
2575 | CHECK_TYPEDEF (base); |
2576 | CHECK_TYPEDEF (dclass); | |
2577 | ||
4e8f195d | 2578 | if (class_types_same_p (base, dclass)) |
a9d5ef47 | 2579 | return 0; |
c906108c SS |
2580 | |
2581 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
4e8f195d | 2582 | { |
0526b37a SW |
2583 | if (public && ! BASETYPE_VIA_PUBLIC (dclass, i)) |
2584 | continue; | |
2585 | ||
a9d5ef47 SW |
2586 | d = distance_to_ancestor (base, TYPE_BASECLASS (dclass, i), public); |
2587 | if (d >= 0) | |
2588 | return 1 + d; | |
4e8f195d | 2589 | } |
c906108c | 2590 | |
a9d5ef47 | 2591 | return -1; |
c906108c | 2592 | } |
4e8f195d | 2593 | |
0526b37a SW |
2594 | /* Check whether BASE is an ancestor or base class or DCLASS |
2595 | Return 1 if so, and 0 if not. | |
2596 | Note: If BASE and DCLASS are of the same type, this function | |
2597 | will return 1. So for some class A, is_ancestor (A, A) will | |
2598 | return 1. */ | |
2599 | ||
2600 | int | |
2601 | is_ancestor (struct type *base, struct type *dclass) | |
2602 | { | |
a9d5ef47 | 2603 | return distance_to_ancestor (base, dclass, 0) >= 0; |
0526b37a SW |
2604 | } |
2605 | ||
4e8f195d TT |
2606 | /* Like is_ancestor, but only returns true when BASE is a public |
2607 | ancestor of DCLASS. */ | |
2608 | ||
2609 | int | |
2610 | is_public_ancestor (struct type *base, struct type *dclass) | |
2611 | { | |
a9d5ef47 | 2612 | return distance_to_ancestor (base, dclass, 1) >= 0; |
4e8f195d TT |
2613 | } |
2614 | ||
2615 | /* A helper function for is_unique_ancestor. */ | |
2616 | ||
2617 | static int | |
2618 | is_unique_ancestor_worker (struct type *base, struct type *dclass, | |
2619 | int *offset, | |
8af8e3bc PA |
2620 | const gdb_byte *valaddr, int embedded_offset, |
2621 | CORE_ADDR address, struct value *val) | |
4e8f195d TT |
2622 | { |
2623 | int i, count = 0; | |
2624 | ||
2625 | CHECK_TYPEDEF (base); | |
2626 | CHECK_TYPEDEF (dclass); | |
2627 | ||
2628 | for (i = 0; i < TYPE_N_BASECLASSES (dclass) && count < 2; ++i) | |
2629 | { | |
8af8e3bc PA |
2630 | struct type *iter; |
2631 | int this_offset; | |
4e8f195d | 2632 | |
8af8e3bc PA |
2633 | iter = check_typedef (TYPE_BASECLASS (dclass, i)); |
2634 | ||
2635 | this_offset = baseclass_offset (dclass, i, valaddr, embedded_offset, | |
2636 | address, val); | |
4e8f195d TT |
2637 | |
2638 | if (class_types_same_p (base, iter)) | |
2639 | { | |
2640 | /* If this is the first subclass, set *OFFSET and set count | |
2641 | to 1. Otherwise, if this is at the same offset as | |
2642 | previous instances, do nothing. Otherwise, increment | |
2643 | count. */ | |
2644 | if (*offset == -1) | |
2645 | { | |
2646 | *offset = this_offset; | |
2647 | count = 1; | |
2648 | } | |
2649 | else if (this_offset == *offset) | |
2650 | { | |
2651 | /* Nothing. */ | |
2652 | } | |
2653 | else | |
2654 | ++count; | |
2655 | } | |
2656 | else | |
2657 | count += is_unique_ancestor_worker (base, iter, offset, | |
8af8e3bc PA |
2658 | valaddr, |
2659 | embedded_offset + this_offset, | |
2660 | address, val); | |
4e8f195d TT |
2661 | } |
2662 | ||
2663 | return count; | |
2664 | } | |
2665 | ||
2666 | /* Like is_ancestor, but only returns true if BASE is a unique base | |
2667 | class of the type of VAL. */ | |
2668 | ||
2669 | int | |
2670 | is_unique_ancestor (struct type *base, struct value *val) | |
2671 | { | |
2672 | int offset = -1; | |
2673 | ||
2674 | return is_unique_ancestor_worker (base, value_type (val), &offset, | |
8af8e3bc PA |
2675 | value_contents_for_printing (val), |
2676 | value_embedded_offset (val), | |
2677 | value_address (val), val) == 1; | |
4e8f195d TT |
2678 | } |
2679 | ||
c906108c | 2680 | \f |
5212577a | 2681 | /* Overload resolution. */ |
c906108c | 2682 | |
6403aeea SW |
2683 | /* Return the sum of the rank of A with the rank of B. */ |
2684 | ||
2685 | struct rank | |
2686 | sum_ranks (struct rank a, struct rank b) | |
2687 | { | |
2688 | struct rank c; | |
2689 | c.rank = a.rank + b.rank; | |
a9d5ef47 | 2690 | c.subrank = a.subrank + b.subrank; |
6403aeea SW |
2691 | return c; |
2692 | } | |
2693 | ||
2694 | /* Compare rank A and B and return: | |
2695 | 0 if a = b | |
2696 | 1 if a is better than b | |
2697 | -1 if b is better than a. */ | |
2698 | ||
2699 | int | |
2700 | compare_ranks (struct rank a, struct rank b) | |
2701 | { | |
2702 | if (a.rank == b.rank) | |
a9d5ef47 SW |
2703 | { |
2704 | if (a.subrank == b.subrank) | |
2705 | return 0; | |
2706 | if (a.subrank < b.subrank) | |
2707 | return 1; | |
2708 | if (a.subrank > b.subrank) | |
2709 | return -1; | |
2710 | } | |
6403aeea SW |
2711 | |
2712 | if (a.rank < b.rank) | |
2713 | return 1; | |
2714 | ||
0963b4bd | 2715 | /* a.rank > b.rank */ |
6403aeea SW |
2716 | return -1; |
2717 | } | |
c5aa993b | 2718 | |
0963b4bd | 2719 | /* Functions for overload resolution begin here. */ |
c906108c SS |
2720 | |
2721 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
2722 | 0 => A and B are identical |
2723 | 1 => A and B are incomparable | |
2724 | 2 => A is better than B | |
2725 | 3 => A is worse than B */ | |
c906108c SS |
2726 | |
2727 | int | |
fba45db2 | 2728 | compare_badness (struct badness_vector *a, struct badness_vector *b) |
c906108c SS |
2729 | { |
2730 | int i; | |
2731 | int tmp; | |
c5aa993b JM |
2732 | short found_pos = 0; /* any positives in c? */ |
2733 | short found_neg = 0; /* any negatives in c? */ | |
2734 | ||
2735 | /* differing lengths => incomparable */ | |
c906108c SS |
2736 | if (a->length != b->length) |
2737 | return 1; | |
2738 | ||
c5aa993b JM |
2739 | /* Subtract b from a */ |
2740 | for (i = 0; i < a->length; i++) | |
c906108c | 2741 | { |
6403aeea | 2742 | tmp = compare_ranks (b->rank[i], a->rank[i]); |
c906108c | 2743 | if (tmp > 0) |
c5aa993b | 2744 | found_pos = 1; |
c906108c | 2745 | else if (tmp < 0) |
c5aa993b | 2746 | found_neg = 1; |
c906108c SS |
2747 | } |
2748 | ||
2749 | if (found_pos) | |
2750 | { | |
2751 | if (found_neg) | |
c5aa993b | 2752 | return 1; /* incomparable */ |
c906108c | 2753 | else |
c5aa993b | 2754 | return 3; /* A > B */ |
c906108c | 2755 | } |
c5aa993b JM |
2756 | else |
2757 | /* no positives */ | |
c906108c SS |
2758 | { |
2759 | if (found_neg) | |
c5aa993b | 2760 | return 2; /* A < B */ |
c906108c | 2761 | else |
c5aa993b | 2762 | return 0; /* A == B */ |
c906108c SS |
2763 | } |
2764 | } | |
2765 | ||
7ba81444 MS |
2766 | /* Rank a function by comparing its parameter types (PARMS, length |
2767 | NPARMS), to the types of an argument list (ARGS, length NARGS). | |
2768 | Return a pointer to a badness vector. This has NARGS + 1 | |
2769 | entries. */ | |
c906108c SS |
2770 | |
2771 | struct badness_vector * | |
7ba81444 | 2772 | rank_function (struct type **parms, int nparms, |
da096638 | 2773 | struct value **args, int nargs) |
c906108c SS |
2774 | { |
2775 | int i; | |
c5aa993b | 2776 | struct badness_vector *bv; |
c906108c SS |
2777 | int min_len = nparms < nargs ? nparms : nargs; |
2778 | ||
2779 | bv = xmalloc (sizeof (struct badness_vector)); | |
0963b4bd | 2780 | bv->length = nargs + 1; /* add 1 for the length-match rank. */ |
c4e54771 | 2781 | bv->rank = XNEWVEC (struct rank, nargs + 1); |
c906108c SS |
2782 | |
2783 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 2784 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 2785 | |
c906108c | 2786 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
2787 | arguments and ellipsis parameter lists, we should consider those |
2788 | and rank the length-match more finely. */ | |
c906108c | 2789 | |
6403aeea SW |
2790 | LENGTH_MATCH (bv) = (nargs != nparms) |
2791 | ? LENGTH_MISMATCH_BADNESS | |
2792 | : EXACT_MATCH_BADNESS; | |
c906108c | 2793 | |
0963b4bd | 2794 | /* Now rank all the parameters of the candidate function. */ |
74cc24b0 | 2795 | for (i = 1; i <= min_len; i++) |
da096638 KS |
2796 | bv->rank[i] = rank_one_type (parms[i - 1], value_type (args[i - 1]), |
2797 | args[i - 1]); | |
c906108c | 2798 | |
0963b4bd | 2799 | /* If more arguments than parameters, add dummy entries. */ |
c5aa993b | 2800 | for (i = min_len + 1; i <= nargs; i++) |
c906108c SS |
2801 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
2802 | ||
2803 | return bv; | |
2804 | } | |
2805 | ||
973ccf8b DJ |
2806 | /* Compare the names of two integer types, assuming that any sign |
2807 | qualifiers have been checked already. We do it this way because | |
2808 | there may be an "int" in the name of one of the types. */ | |
2809 | ||
2810 | static int | |
2811 | integer_types_same_name_p (const char *first, const char *second) | |
2812 | { | |
2813 | int first_p, second_p; | |
2814 | ||
7ba81444 MS |
2815 | /* If both are shorts, return 1; if neither is a short, keep |
2816 | checking. */ | |
973ccf8b DJ |
2817 | first_p = (strstr (first, "short") != NULL); |
2818 | second_p = (strstr (second, "short") != NULL); | |
2819 | if (first_p && second_p) | |
2820 | return 1; | |
2821 | if (first_p || second_p) | |
2822 | return 0; | |
2823 | ||
2824 | /* Likewise for long. */ | |
2825 | first_p = (strstr (first, "long") != NULL); | |
2826 | second_p = (strstr (second, "long") != NULL); | |
2827 | if (first_p && second_p) | |
2828 | return 1; | |
2829 | if (first_p || second_p) | |
2830 | return 0; | |
2831 | ||
2832 | /* Likewise for char. */ | |
2833 | first_p = (strstr (first, "char") != NULL); | |
2834 | second_p = (strstr (second, "char") != NULL); | |
2835 | if (first_p && second_p) | |
2836 | return 1; | |
2837 | if (first_p || second_p) | |
2838 | return 0; | |
2839 | ||
2840 | /* They must both be ints. */ | |
2841 | return 1; | |
2842 | } | |
2843 | ||
7062b0a0 SW |
2844 | /* Compares type A to type B returns 1 if the represent the same type |
2845 | 0 otherwise. */ | |
2846 | ||
bd69fc68 | 2847 | int |
7062b0a0 SW |
2848 | types_equal (struct type *a, struct type *b) |
2849 | { | |
2850 | /* Identical type pointers. */ | |
2851 | /* However, this still doesn't catch all cases of same type for b | |
2852 | and a. The reason is that builtin types are different from | |
2853 | the same ones constructed from the object. */ | |
2854 | if (a == b) | |
2855 | return 1; | |
2856 | ||
2857 | /* Resolve typedefs */ | |
2858 | if (TYPE_CODE (a) == TYPE_CODE_TYPEDEF) | |
2859 | a = check_typedef (a); | |
2860 | if (TYPE_CODE (b) == TYPE_CODE_TYPEDEF) | |
2861 | b = check_typedef (b); | |
2862 | ||
2863 | /* If after resolving typedefs a and b are not of the same type | |
2864 | code then they are not equal. */ | |
2865 | if (TYPE_CODE (a) != TYPE_CODE (b)) | |
2866 | return 0; | |
2867 | ||
2868 | /* If a and b are both pointers types or both reference types then | |
2869 | they are equal of the same type iff the objects they refer to are | |
2870 | of the same type. */ | |
2871 | if (TYPE_CODE (a) == TYPE_CODE_PTR | |
2872 | || TYPE_CODE (a) == TYPE_CODE_REF) | |
2873 | return types_equal (TYPE_TARGET_TYPE (a), | |
2874 | TYPE_TARGET_TYPE (b)); | |
2875 | ||
0963b4bd | 2876 | /* Well, damnit, if the names are exactly the same, I'll say they |
7062b0a0 SW |
2877 | are exactly the same. This happens when we generate method |
2878 | stubs. The types won't point to the same address, but they | |
0963b4bd | 2879 | really are the same. */ |
7062b0a0 SW |
2880 | |
2881 | if (TYPE_NAME (a) && TYPE_NAME (b) | |
2882 | && strcmp (TYPE_NAME (a), TYPE_NAME (b)) == 0) | |
2883 | return 1; | |
2884 | ||
2885 | /* Check if identical after resolving typedefs. */ | |
2886 | if (a == b) | |
2887 | return 1; | |
2888 | ||
9ce98649 TT |
2889 | /* Two function types are equal if their argument and return types |
2890 | are equal. */ | |
2891 | if (TYPE_CODE (a) == TYPE_CODE_FUNC) | |
2892 | { | |
2893 | int i; | |
2894 | ||
2895 | if (TYPE_NFIELDS (a) != TYPE_NFIELDS (b)) | |
2896 | return 0; | |
2897 | ||
2898 | if (!types_equal (TYPE_TARGET_TYPE (a), TYPE_TARGET_TYPE (b))) | |
2899 | return 0; | |
2900 | ||
2901 | for (i = 0; i < TYPE_NFIELDS (a); ++i) | |
2902 | if (!types_equal (TYPE_FIELD_TYPE (a, i), TYPE_FIELD_TYPE (b, i))) | |
2903 | return 0; | |
2904 | ||
2905 | return 1; | |
2906 | } | |
2907 | ||
7062b0a0 SW |
2908 | return 0; |
2909 | } | |
ca092b61 DE |
2910 | \f |
2911 | /* Deep comparison of types. */ | |
2912 | ||
2913 | /* An entry in the type-equality bcache. */ | |
2914 | ||
2915 | typedef struct type_equality_entry | |
2916 | { | |
2917 | struct type *type1, *type2; | |
2918 | } type_equality_entry_d; | |
2919 | ||
2920 | DEF_VEC_O (type_equality_entry_d); | |
2921 | ||
2922 | /* A helper function to compare two strings. Returns 1 if they are | |
2923 | the same, 0 otherwise. Handles NULLs properly. */ | |
2924 | ||
2925 | static int | |
2926 | compare_maybe_null_strings (const char *s, const char *t) | |
2927 | { | |
2928 | if (s == NULL && t != NULL) | |
2929 | return 0; | |
2930 | else if (s != NULL && t == NULL) | |
2931 | return 0; | |
2932 | else if (s == NULL && t== NULL) | |
2933 | return 1; | |
2934 | return strcmp (s, t) == 0; | |
2935 | } | |
2936 | ||
2937 | /* A helper function for check_types_worklist that checks two types for | |
2938 | "deep" equality. Returns non-zero if the types are considered the | |
2939 | same, zero otherwise. */ | |
2940 | ||
2941 | static int | |
2942 | check_types_equal (struct type *type1, struct type *type2, | |
2943 | VEC (type_equality_entry_d) **worklist) | |
2944 | { | |
2945 | CHECK_TYPEDEF (type1); | |
2946 | CHECK_TYPEDEF (type2); | |
2947 | ||
2948 | if (type1 == type2) | |
2949 | return 1; | |
2950 | ||
2951 | if (TYPE_CODE (type1) != TYPE_CODE (type2) | |
2952 | || TYPE_LENGTH (type1) != TYPE_LENGTH (type2) | |
2953 | || TYPE_UNSIGNED (type1) != TYPE_UNSIGNED (type2) | |
2954 | || TYPE_NOSIGN (type1) != TYPE_NOSIGN (type2) | |
2955 | || TYPE_VARARGS (type1) != TYPE_VARARGS (type2) | |
2956 | || TYPE_VECTOR (type1) != TYPE_VECTOR (type2) | |
2957 | || TYPE_NOTTEXT (type1) != TYPE_NOTTEXT (type2) | |
2958 | || TYPE_INSTANCE_FLAGS (type1) != TYPE_INSTANCE_FLAGS (type2) | |
2959 | || TYPE_NFIELDS (type1) != TYPE_NFIELDS (type2)) | |
2960 | return 0; | |
2961 | ||
2962 | if (!compare_maybe_null_strings (TYPE_TAG_NAME (type1), | |
2963 | TYPE_TAG_NAME (type2))) | |
2964 | return 0; | |
2965 | if (!compare_maybe_null_strings (TYPE_NAME (type1), TYPE_NAME (type2))) | |
2966 | return 0; | |
2967 | ||
2968 | if (TYPE_CODE (type1) == TYPE_CODE_RANGE) | |
2969 | { | |
2970 | if (memcmp (TYPE_RANGE_DATA (type1), TYPE_RANGE_DATA (type2), | |
2971 | sizeof (*TYPE_RANGE_DATA (type1))) != 0) | |
2972 | return 0; | |
2973 | } | |
2974 | else | |
2975 | { | |
2976 | int i; | |
2977 | ||
2978 | for (i = 0; i < TYPE_NFIELDS (type1); ++i) | |
2979 | { | |
2980 | const struct field *field1 = &TYPE_FIELD (type1, i); | |
2981 | const struct field *field2 = &TYPE_FIELD (type2, i); | |
2982 | struct type_equality_entry entry; | |
2983 | ||
2984 | if (FIELD_ARTIFICIAL (*field1) != FIELD_ARTIFICIAL (*field2) | |
2985 | || FIELD_BITSIZE (*field1) != FIELD_BITSIZE (*field2) | |
2986 | || FIELD_LOC_KIND (*field1) != FIELD_LOC_KIND (*field2)) | |
2987 | return 0; | |
2988 | if (!compare_maybe_null_strings (FIELD_NAME (*field1), | |
2989 | FIELD_NAME (*field2))) | |
2990 | return 0; | |
2991 | switch (FIELD_LOC_KIND (*field1)) | |
2992 | { | |
2993 | case FIELD_LOC_KIND_BITPOS: | |
2994 | if (FIELD_BITPOS (*field1) != FIELD_BITPOS (*field2)) | |
2995 | return 0; | |
2996 | break; | |
2997 | case FIELD_LOC_KIND_ENUMVAL: | |
2998 | if (FIELD_ENUMVAL (*field1) != FIELD_ENUMVAL (*field2)) | |
2999 | return 0; | |
3000 | break; | |
3001 | case FIELD_LOC_KIND_PHYSADDR: | |
3002 | if (FIELD_STATIC_PHYSADDR (*field1) | |
3003 | != FIELD_STATIC_PHYSADDR (*field2)) | |
3004 | return 0; | |
3005 | break; | |
3006 | case FIELD_LOC_KIND_PHYSNAME: | |
3007 | if (!compare_maybe_null_strings (FIELD_STATIC_PHYSNAME (*field1), | |
3008 | FIELD_STATIC_PHYSNAME (*field2))) | |
3009 | return 0; | |
3010 | break; | |
3011 | case FIELD_LOC_KIND_DWARF_BLOCK: | |
3012 | { | |
3013 | struct dwarf2_locexpr_baton *block1, *block2; | |
3014 | ||
3015 | block1 = FIELD_DWARF_BLOCK (*field1); | |
3016 | block2 = FIELD_DWARF_BLOCK (*field2); | |
3017 | if (block1->per_cu != block2->per_cu | |
3018 | || block1->size != block2->size | |
3019 | || memcmp (block1->data, block2->data, block1->size) != 0) | |
3020 | return 0; | |
3021 | } | |
3022 | break; | |
3023 | default: | |
3024 | internal_error (__FILE__, __LINE__, _("Unsupported field kind " | |
3025 | "%d by check_types_equal"), | |
3026 | FIELD_LOC_KIND (*field1)); | |
3027 | } | |
3028 | ||
3029 | entry.type1 = FIELD_TYPE (*field1); | |
3030 | entry.type2 = FIELD_TYPE (*field2); | |
3031 | VEC_safe_push (type_equality_entry_d, *worklist, &entry); | |
3032 | } | |
3033 | } | |
3034 | ||
3035 | if (TYPE_TARGET_TYPE (type1) != NULL) | |
3036 | { | |
3037 | struct type_equality_entry entry; | |
3038 | ||
3039 | if (TYPE_TARGET_TYPE (type2) == NULL) | |
3040 | return 0; | |
3041 | ||
3042 | entry.type1 = TYPE_TARGET_TYPE (type1); | |
3043 | entry.type2 = TYPE_TARGET_TYPE (type2); | |
3044 | VEC_safe_push (type_equality_entry_d, *worklist, &entry); | |
3045 | } | |
3046 | else if (TYPE_TARGET_TYPE (type2) != NULL) | |
3047 | return 0; | |
3048 | ||
3049 | return 1; | |
3050 | } | |
3051 | ||
3052 | /* Check types on a worklist for equality. Returns zero if any pair | |
3053 | is not equal, non-zero if they are all considered equal. */ | |
3054 | ||
3055 | static int | |
3056 | check_types_worklist (VEC (type_equality_entry_d) **worklist, | |
3057 | struct bcache *cache) | |
3058 | { | |
3059 | while (!VEC_empty (type_equality_entry_d, *worklist)) | |
3060 | { | |
3061 | struct type_equality_entry entry; | |
3062 | int added; | |
3063 | ||
3064 | entry = *VEC_last (type_equality_entry_d, *worklist); | |
3065 | VEC_pop (type_equality_entry_d, *worklist); | |
3066 | ||
3067 | /* If the type pair has already been visited, we know it is | |
3068 | ok. */ | |
3069 | bcache_full (&entry, sizeof (entry), cache, &added); | |
3070 | if (!added) | |
3071 | continue; | |
3072 | ||
3073 | if (check_types_equal (entry.type1, entry.type2, worklist) == 0) | |
3074 | return 0; | |
3075 | } | |
7062b0a0 | 3076 | |
ca092b61 DE |
3077 | return 1; |
3078 | } | |
3079 | ||
3080 | /* Return non-zero if types TYPE1 and TYPE2 are equal, as determined by a | |
3081 | "deep comparison". Otherwise return zero. */ | |
3082 | ||
3083 | int | |
3084 | types_deeply_equal (struct type *type1, struct type *type2) | |
3085 | { | |
3086 | volatile struct gdb_exception except; | |
3087 | int result = 0; | |
3088 | struct bcache *cache; | |
3089 | VEC (type_equality_entry_d) *worklist = NULL; | |
3090 | struct type_equality_entry entry; | |
3091 | ||
3092 | gdb_assert (type1 != NULL && type2 != NULL); | |
3093 | ||
3094 | /* Early exit for the simple case. */ | |
3095 | if (type1 == type2) | |
3096 | return 1; | |
3097 | ||
3098 | cache = bcache_xmalloc (NULL, NULL); | |
3099 | ||
3100 | entry.type1 = type1; | |
3101 | entry.type2 = type2; | |
3102 | VEC_safe_push (type_equality_entry_d, worklist, &entry); | |
3103 | ||
3104 | TRY_CATCH (except, RETURN_MASK_ALL) | |
3105 | { | |
3106 | result = check_types_worklist (&worklist, cache); | |
3107 | } | |
3108 | /* check_types_worklist calls several nested helper functions, | |
3109 | some of which can raise a GDB Exception, so we just check | |
3110 | and rethrow here. If there is a GDB exception, a comparison | |
3111 | is not capable (or trusted), so exit. */ | |
3112 | bcache_xfree (cache); | |
3113 | VEC_free (type_equality_entry_d, worklist); | |
3114 | /* Rethrow if there was a problem. */ | |
3115 | if (except.reason < 0) | |
3116 | throw_exception (except); | |
3117 | ||
3118 | return result; | |
3119 | } | |
3120 | \f | |
c906108c SS |
3121 | /* Compare one type (PARM) for compatibility with another (ARG). |
3122 | * PARM is intended to be the parameter type of a function; and | |
3123 | * ARG is the supplied argument's type. This function tests if | |
3124 | * the latter can be converted to the former. | |
da096638 | 3125 | * VALUE is the argument's value or NULL if none (or called recursively) |
c906108c SS |
3126 | * |
3127 | * Return 0 if they are identical types; | |
3128 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 MS |
3129 | * PARM is to ARG. The higher the return value, the worse the match. |
3130 | * Generally the "bad" conversions are all uniformly assigned a 100. */ | |
c906108c | 3131 | |
6403aeea | 3132 | struct rank |
da096638 | 3133 | rank_one_type (struct type *parm, struct type *arg, struct value *value) |
c906108c | 3134 | { |
a9d5ef47 | 3135 | struct rank rank = {0,0}; |
7062b0a0 SW |
3136 | |
3137 | if (types_equal (parm, arg)) | |
6403aeea | 3138 | return EXACT_MATCH_BADNESS; |
c906108c SS |
3139 | |
3140 | /* Resolve typedefs */ | |
3141 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
3142 | parm = check_typedef (parm); | |
3143 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
3144 | arg = check_typedef (arg); | |
3145 | ||
db577aea | 3146 | /* See through references, since we can almost make non-references |
7ba81444 | 3147 | references. */ |
db577aea | 3148 | if (TYPE_CODE (arg) == TYPE_CODE_REF) |
da096638 | 3149 | return (sum_ranks (rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL), |
6403aeea | 3150 | REFERENCE_CONVERSION_BADNESS)); |
db577aea | 3151 | if (TYPE_CODE (parm) == TYPE_CODE_REF) |
da096638 | 3152 | return (sum_ranks (rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL), |
6403aeea | 3153 | REFERENCE_CONVERSION_BADNESS)); |
5d161b24 | 3154 | if (overload_debug) |
7ba81444 MS |
3155 | /* Debugging only. */ |
3156 | fprintf_filtered (gdb_stderr, | |
3157 | "------ Arg is %s [%d], parm is %s [%d]\n", | |
3158 | TYPE_NAME (arg), TYPE_CODE (arg), | |
3159 | TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c | 3160 | |
0963b4bd | 3161 | /* x -> y means arg of type x being supplied for parameter of type y. */ |
c906108c SS |
3162 | |
3163 | switch (TYPE_CODE (parm)) | |
3164 | { | |
c5aa993b JM |
3165 | case TYPE_CODE_PTR: |
3166 | switch (TYPE_CODE (arg)) | |
3167 | { | |
3168 | case TYPE_CODE_PTR: | |
7062b0a0 SW |
3169 | |
3170 | /* Allowed pointer conversions are: | |
3171 | (a) pointer to void-pointer conversion. */ | |
3172 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) | |
c5aa993b | 3173 | return VOID_PTR_CONVERSION_BADNESS; |
7062b0a0 SW |
3174 | |
3175 | /* (b) pointer to ancestor-pointer conversion. */ | |
a9d5ef47 SW |
3176 | rank.subrank = distance_to_ancestor (TYPE_TARGET_TYPE (parm), |
3177 | TYPE_TARGET_TYPE (arg), | |
3178 | 0); | |
3179 | if (rank.subrank >= 0) | |
3180 | return sum_ranks (BASE_PTR_CONVERSION_BADNESS, rank); | |
7062b0a0 SW |
3181 | |
3182 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 3183 | case TYPE_CODE_ARRAY: |
7062b0a0 SW |
3184 | if (types_equal (TYPE_TARGET_TYPE (parm), |
3185 | TYPE_TARGET_TYPE (arg))) | |
6403aeea | 3186 | return EXACT_MATCH_BADNESS; |
7062b0a0 | 3187 | return INCOMPATIBLE_TYPE_BADNESS; |
c5aa993b | 3188 | case TYPE_CODE_FUNC: |
da096638 | 3189 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL); |
c5aa993b | 3190 | case TYPE_CODE_INT: |
a451cb65 | 3191 | if (value != NULL && TYPE_CODE (value_type (value)) == TYPE_CODE_INT) |
da096638 | 3192 | { |
a451cb65 KS |
3193 | if (value_as_long (value) == 0) |
3194 | { | |
3195 | /* Null pointer conversion: allow it to be cast to a pointer. | |
3196 | [4.10.1 of C++ standard draft n3290] */ | |
3197 | return NULL_POINTER_CONVERSION_BADNESS; | |
3198 | } | |
3199 | else | |
3200 | { | |
3201 | /* If type checking is disabled, allow the conversion. */ | |
3202 | if (!strict_type_checking) | |
3203 | return NS_INTEGER_POINTER_CONVERSION_BADNESS; | |
3204 | } | |
da096638 KS |
3205 | } |
3206 | /* fall through */ | |
c5aa993b | 3207 | case TYPE_CODE_ENUM: |
4f2aea11 | 3208 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
3209 | case TYPE_CODE_CHAR: |
3210 | case TYPE_CODE_RANGE: | |
3211 | case TYPE_CODE_BOOL: | |
c5aa993b JM |
3212 | default: |
3213 | return INCOMPATIBLE_TYPE_BADNESS; | |
3214 | } | |
3215 | case TYPE_CODE_ARRAY: | |
3216 | switch (TYPE_CODE (arg)) | |
3217 | { | |
3218 | case TYPE_CODE_PTR: | |
3219 | case TYPE_CODE_ARRAY: | |
7ba81444 | 3220 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
da096638 | 3221 | TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
3222 | default: |
3223 | return INCOMPATIBLE_TYPE_BADNESS; | |
3224 | } | |
3225 | case TYPE_CODE_FUNC: | |
3226 | switch (TYPE_CODE (arg)) | |
3227 | { | |
3228 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
da096638 | 3229 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
3230 | default: |
3231 | return INCOMPATIBLE_TYPE_BADNESS; | |
3232 | } | |
3233 | case TYPE_CODE_INT: | |
3234 | switch (TYPE_CODE (arg)) | |
3235 | { | |
3236 | case TYPE_CODE_INT: | |
3237 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
3238 | { | |
3239 | /* Deal with signed, unsigned, and plain chars and | |
7ba81444 | 3240 | signed and unsigned ints. */ |
c5aa993b JM |
3241 | if (TYPE_NOSIGN (parm)) |
3242 | { | |
0963b4bd | 3243 | /* This case only for character types. */ |
7ba81444 | 3244 | if (TYPE_NOSIGN (arg)) |
6403aeea | 3245 | return EXACT_MATCH_BADNESS; /* plain char -> plain char */ |
7ba81444 MS |
3246 | else /* signed/unsigned char -> plain char */ |
3247 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
3248 | } |
3249 | else if (TYPE_UNSIGNED (parm)) | |
3250 | { | |
3251 | if (TYPE_UNSIGNED (arg)) | |
3252 | { | |
7ba81444 MS |
3253 | /* unsigned int -> unsigned int, or |
3254 | unsigned long -> unsigned long */ | |
3255 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
3256 | TYPE_NAME (arg))) | |
6403aeea | 3257 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
3258 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
3259 | "int") | |
3260 | && integer_types_same_name_p (TYPE_NAME (parm), | |
3261 | "long")) | |
3e43a32a MS |
3262 | /* unsigned int -> unsigned long */ |
3263 | return INTEGER_PROMOTION_BADNESS; | |
c5aa993b | 3264 | else |
3e43a32a MS |
3265 | /* unsigned long -> unsigned int */ |
3266 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
3267 | } |
3268 | else | |
3269 | { | |
7ba81444 MS |
3270 | if (integer_types_same_name_p (TYPE_NAME (arg), |
3271 | "long") | |
3272 | && integer_types_same_name_p (TYPE_NAME (parm), | |
3273 | "int")) | |
3e43a32a MS |
3274 | /* signed long -> unsigned int */ |
3275 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b | 3276 | else |
3e43a32a MS |
3277 | /* signed int/long -> unsigned int/long */ |
3278 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
3279 | } |
3280 | } | |
3281 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
3282 | { | |
7ba81444 MS |
3283 | if (integer_types_same_name_p (TYPE_NAME (parm), |
3284 | TYPE_NAME (arg))) | |
6403aeea | 3285 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
3286 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
3287 | "int") | |
3288 | && integer_types_same_name_p (TYPE_NAME (parm), | |
3289 | "long")) | |
c5aa993b JM |
3290 | return INTEGER_PROMOTION_BADNESS; |
3291 | else | |
1c5cb38e | 3292 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3293 | } |
3294 | else | |
1c5cb38e | 3295 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3296 | } |
3297 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
3298 | return INTEGER_PROMOTION_BADNESS; | |
3299 | else | |
1c5cb38e | 3300 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b | 3301 | case TYPE_CODE_ENUM: |
4f2aea11 | 3302 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
3303 | case TYPE_CODE_CHAR: |
3304 | case TYPE_CODE_RANGE: | |
3305 | case TYPE_CODE_BOOL: | |
3d567982 TT |
3306 | if (TYPE_DECLARED_CLASS (arg)) |
3307 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b JM |
3308 | return INTEGER_PROMOTION_BADNESS; |
3309 | case TYPE_CODE_FLT: | |
3310 | return INT_FLOAT_CONVERSION_BADNESS; | |
3311 | case TYPE_CODE_PTR: | |
3312 | return NS_POINTER_CONVERSION_BADNESS; | |
3313 | default: | |
3314 | return INCOMPATIBLE_TYPE_BADNESS; | |
3315 | } | |
3316 | break; | |
3317 | case TYPE_CODE_ENUM: | |
3318 | switch (TYPE_CODE (arg)) | |
3319 | { | |
3320 | case TYPE_CODE_INT: | |
3321 | case TYPE_CODE_CHAR: | |
3322 | case TYPE_CODE_RANGE: | |
3323 | case TYPE_CODE_BOOL: | |
3324 | case TYPE_CODE_ENUM: | |
3d567982 TT |
3325 | if (TYPE_DECLARED_CLASS (parm) || TYPE_DECLARED_CLASS (arg)) |
3326 | return INCOMPATIBLE_TYPE_BADNESS; | |
1c5cb38e | 3327 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3328 | case TYPE_CODE_FLT: |
3329 | return INT_FLOAT_CONVERSION_BADNESS; | |
3330 | default: | |
3331 | return INCOMPATIBLE_TYPE_BADNESS; | |
3332 | } | |
3333 | break; | |
3334 | case TYPE_CODE_CHAR: | |
3335 | switch (TYPE_CODE (arg)) | |
3336 | { | |
3337 | case TYPE_CODE_RANGE: | |
3338 | case TYPE_CODE_BOOL: | |
3339 | case TYPE_CODE_ENUM: | |
3d567982 TT |
3340 | if (TYPE_DECLARED_CLASS (arg)) |
3341 | return INCOMPATIBLE_TYPE_BADNESS; | |
1c5cb38e | 3342 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3343 | case TYPE_CODE_FLT: |
3344 | return INT_FLOAT_CONVERSION_BADNESS; | |
3345 | case TYPE_CODE_INT: | |
3346 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
1c5cb38e | 3347 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3348 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) |
3349 | return INTEGER_PROMOTION_BADNESS; | |
3350 | /* >>> !! else fall through !! <<< */ | |
3351 | case TYPE_CODE_CHAR: | |
7ba81444 MS |
3352 | /* Deal with signed, unsigned, and plain chars for C++ and |
3353 | with int cases falling through from previous case. */ | |
c5aa993b JM |
3354 | if (TYPE_NOSIGN (parm)) |
3355 | { | |
3356 | if (TYPE_NOSIGN (arg)) | |
6403aeea | 3357 | return EXACT_MATCH_BADNESS; |
c5aa993b | 3358 | else |
1c5cb38e | 3359 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3360 | } |
3361 | else if (TYPE_UNSIGNED (parm)) | |
3362 | { | |
3363 | if (TYPE_UNSIGNED (arg)) | |
6403aeea | 3364 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3365 | else |
3366 | return INTEGER_PROMOTION_BADNESS; | |
3367 | } | |
3368 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
6403aeea | 3369 | return EXACT_MATCH_BADNESS; |
c5aa993b | 3370 | else |
1c5cb38e | 3371 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3372 | default: |
3373 | return INCOMPATIBLE_TYPE_BADNESS; | |
3374 | } | |
3375 | break; | |
3376 | case TYPE_CODE_RANGE: | |
3377 | switch (TYPE_CODE (arg)) | |
3378 | { | |
3379 | case TYPE_CODE_INT: | |
3380 | case TYPE_CODE_CHAR: | |
3381 | case TYPE_CODE_RANGE: | |
3382 | case TYPE_CODE_BOOL: | |
3383 | case TYPE_CODE_ENUM: | |
1c5cb38e | 3384 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3385 | case TYPE_CODE_FLT: |
3386 | return INT_FLOAT_CONVERSION_BADNESS; | |
3387 | default: | |
3388 | return INCOMPATIBLE_TYPE_BADNESS; | |
3389 | } | |
3390 | break; | |
3391 | case TYPE_CODE_BOOL: | |
3392 | switch (TYPE_CODE (arg)) | |
3393 | { | |
5b4f6e25 KS |
3394 | /* n3290 draft, section 4.12.1 (conv.bool): |
3395 | ||
3396 | "A prvalue of arithmetic, unscoped enumeration, pointer, or | |
3397 | pointer to member type can be converted to a prvalue of type | |
3398 | bool. A zero value, null pointer value, or null member pointer | |
3399 | value is converted to false; any other value is converted to | |
3400 | true. A prvalue of type std::nullptr_t can be converted to a | |
3401 | prvalue of type bool; the resulting value is false." */ | |
c5aa993b JM |
3402 | case TYPE_CODE_INT: |
3403 | case TYPE_CODE_CHAR: | |
c5aa993b JM |
3404 | case TYPE_CODE_ENUM: |
3405 | case TYPE_CODE_FLT: | |
5b4f6e25 | 3406 | case TYPE_CODE_MEMBERPTR: |
c5aa993b | 3407 | case TYPE_CODE_PTR: |
5b4f6e25 KS |
3408 | return BOOL_CONVERSION_BADNESS; |
3409 | case TYPE_CODE_RANGE: | |
3410 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 3411 | case TYPE_CODE_BOOL: |
6403aeea | 3412 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3413 | default: |
3414 | return INCOMPATIBLE_TYPE_BADNESS; | |
3415 | } | |
3416 | break; | |
3417 | case TYPE_CODE_FLT: | |
3418 | switch (TYPE_CODE (arg)) | |
3419 | { | |
3420 | case TYPE_CODE_FLT: | |
3421 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
3422 | return FLOAT_PROMOTION_BADNESS; | |
3423 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
6403aeea | 3424 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3425 | else |
3426 | return FLOAT_CONVERSION_BADNESS; | |
3427 | case TYPE_CODE_INT: | |
3428 | case TYPE_CODE_BOOL: | |
3429 | case TYPE_CODE_ENUM: | |
3430 | case TYPE_CODE_RANGE: | |
3431 | case TYPE_CODE_CHAR: | |
3432 | return INT_FLOAT_CONVERSION_BADNESS; | |
3433 | default: | |
3434 | return INCOMPATIBLE_TYPE_BADNESS; | |
3435 | } | |
3436 | break; | |
3437 | case TYPE_CODE_COMPLEX: | |
3438 | switch (TYPE_CODE (arg)) | |
7ba81444 | 3439 | { /* Strictly not needed for C++, but... */ |
c5aa993b JM |
3440 | case TYPE_CODE_FLT: |
3441 | return FLOAT_PROMOTION_BADNESS; | |
3442 | case TYPE_CODE_COMPLEX: | |
6403aeea | 3443 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3444 | default: |
3445 | return INCOMPATIBLE_TYPE_BADNESS; | |
3446 | } | |
3447 | break; | |
3448 | case TYPE_CODE_STRUCT: | |
c5aa993b JM |
3449 | switch (TYPE_CODE (arg)) |
3450 | { | |
3451 | case TYPE_CODE_STRUCT: | |
3452 | /* Check for derivation */ | |
a9d5ef47 SW |
3453 | rank.subrank = distance_to_ancestor (parm, arg, 0); |
3454 | if (rank.subrank >= 0) | |
3455 | return sum_ranks (BASE_CONVERSION_BADNESS, rank); | |
c5aa993b JM |
3456 | /* else fall through */ |
3457 | default: | |
3458 | return INCOMPATIBLE_TYPE_BADNESS; | |
3459 | } | |
3460 | break; | |
3461 | case TYPE_CODE_UNION: | |
3462 | switch (TYPE_CODE (arg)) | |
3463 | { | |
3464 | case TYPE_CODE_UNION: | |
3465 | default: | |
3466 | return INCOMPATIBLE_TYPE_BADNESS; | |
3467 | } | |
3468 | break; | |
0d5de010 | 3469 | case TYPE_CODE_MEMBERPTR: |
c5aa993b JM |
3470 | switch (TYPE_CODE (arg)) |
3471 | { | |
3472 | default: | |
3473 | return INCOMPATIBLE_TYPE_BADNESS; | |
3474 | } | |
3475 | break; | |
3476 | case TYPE_CODE_METHOD: | |
3477 | switch (TYPE_CODE (arg)) | |
3478 | { | |
3479 | ||
3480 | default: | |
3481 | return INCOMPATIBLE_TYPE_BADNESS; | |
3482 | } | |
3483 | break; | |
3484 | case TYPE_CODE_REF: | |
3485 | switch (TYPE_CODE (arg)) | |
3486 | { | |
3487 | ||
3488 | default: | |
3489 | return INCOMPATIBLE_TYPE_BADNESS; | |
3490 | } | |
3491 | ||
3492 | break; | |
3493 | case TYPE_CODE_SET: | |
3494 | switch (TYPE_CODE (arg)) | |
3495 | { | |
3496 | /* Not in C++ */ | |
3497 | case TYPE_CODE_SET: | |
7ba81444 | 3498 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), |
da096638 | 3499 | TYPE_FIELD_TYPE (arg, 0), NULL); |
c5aa993b JM |
3500 | default: |
3501 | return INCOMPATIBLE_TYPE_BADNESS; | |
3502 | } | |
3503 | break; | |
3504 | case TYPE_CODE_VOID: | |
3505 | default: | |
3506 | return INCOMPATIBLE_TYPE_BADNESS; | |
3507 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
3508 | } |
3509 | ||
0963b4bd | 3510 | /* End of functions for overload resolution. */ |
5212577a DE |
3511 | \f |
3512 | /* Routines to pretty-print types. */ | |
c906108c | 3513 | |
c906108c | 3514 | static void |
fba45db2 | 3515 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
3516 | { |
3517 | int bitno; | |
3518 | ||
3519 | for (bitno = 0; bitno < nbits; bitno++) | |
3520 | { | |
3521 | if ((bitno % 8) == 0) | |
3522 | { | |
3523 | puts_filtered (" "); | |
3524 | } | |
3525 | if (B_TST (bits, bitno)) | |
a3f17187 | 3526 | printf_filtered (("1")); |
c906108c | 3527 | else |
a3f17187 | 3528 | printf_filtered (("0")); |
c906108c SS |
3529 | } |
3530 | } | |
3531 | ||
ad2f7632 | 3532 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
3533 | include it since we may get into a infinitely recursive |
3534 | situation. */ | |
c906108c SS |
3535 | |
3536 | static void | |
4c9e8482 | 3537 | print_args (struct field *args, int nargs, int spaces) |
c906108c SS |
3538 | { |
3539 | if (args != NULL) | |
3540 | { | |
ad2f7632 DJ |
3541 | int i; |
3542 | ||
3543 | for (i = 0; i < nargs; i++) | |
4c9e8482 DE |
3544 | { |
3545 | printfi_filtered (spaces, "[%d] name '%s'\n", i, | |
3546 | args[i].name != NULL ? args[i].name : "<NULL>"); | |
3547 | recursive_dump_type (args[i].type, spaces + 2); | |
3548 | } | |
c906108c SS |
3549 | } |
3550 | } | |
3551 | ||
d6a843b5 JK |
3552 | int |
3553 | field_is_static (struct field *f) | |
3554 | { | |
3555 | /* "static" fields are the fields whose location is not relative | |
3556 | to the address of the enclosing struct. It would be nice to | |
3557 | have a dedicated flag that would be set for static fields when | |
3558 | the type is being created. But in practice, checking the field | |
254e6b9e | 3559 | loc_kind should give us an accurate answer. */ |
d6a843b5 JK |
3560 | return (FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSNAME |
3561 | || FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSADDR); | |
3562 | } | |
3563 | ||
c906108c | 3564 | static void |
fba45db2 | 3565 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
3566 | { |
3567 | int method_idx; | |
3568 | int overload_idx; | |
3569 | struct fn_field *f; | |
3570 | ||
3571 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 3572 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
3573 | printf_filtered ("\n"); |
3574 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
3575 | { | |
3576 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
3577 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
3578 | method_idx, | |
3579 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
3580 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
3581 | gdb_stdout); | |
a3f17187 | 3582 | printf_filtered (_(") length %d\n"), |
c906108c SS |
3583 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
3584 | for (overload_idx = 0; | |
3585 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
3586 | overload_idx++) | |
3587 | { | |
3588 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
3589 | overload_idx, | |
3590 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
3591 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
3592 | gdb_stdout); | |
c906108c SS |
3593 | printf_filtered (")\n"); |
3594 | printfi_filtered (spaces + 8, "type "); | |
7ba81444 MS |
3595 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
3596 | gdb_stdout); | |
c906108c SS |
3597 | printf_filtered ("\n"); |
3598 | ||
3599 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
3600 | spaces + 8 + 2); | |
3601 | ||
3602 | printfi_filtered (spaces + 8, "args "); | |
7ba81444 MS |
3603 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
3604 | gdb_stdout); | |
c906108c | 3605 | printf_filtered ("\n"); |
4c9e8482 DE |
3606 | print_args (TYPE_FN_FIELD_ARGS (f, overload_idx), |
3607 | TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, overload_idx)), | |
3608 | spaces + 8 + 2); | |
c906108c | 3609 | printfi_filtered (spaces + 8, "fcontext "); |
d4f3574e SS |
3610 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
3611 | gdb_stdout); | |
c906108c SS |
3612 | printf_filtered ("\n"); |
3613 | ||
3614 | printfi_filtered (spaces + 8, "is_const %d\n", | |
3615 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
3616 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
3617 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
3618 | printfi_filtered (spaces + 8, "is_private %d\n", | |
3619 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
3620 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
3621 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
3622 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
3623 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
3624 | printfi_filtered (spaces + 8, "voffset %u\n", | |
3625 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
3626 | } | |
3627 | } | |
3628 | } | |
3629 | ||
3630 | static void | |
fba45db2 | 3631 | print_cplus_stuff (struct type *type, int spaces) |
c906108c SS |
3632 | { |
3633 | printfi_filtered (spaces, "n_baseclasses %d\n", | |
3634 | TYPE_N_BASECLASSES (type)); | |
3635 | printfi_filtered (spaces, "nfn_fields %d\n", | |
3636 | TYPE_NFN_FIELDS (type)); | |
c906108c SS |
3637 | if (TYPE_N_BASECLASSES (type) > 0) |
3638 | { | |
3639 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
3640 | TYPE_N_BASECLASSES (type)); | |
7ba81444 MS |
3641 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
3642 | gdb_stdout); | |
c906108c SS |
3643 | printf_filtered (")"); |
3644 | ||
3645 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
3646 | TYPE_N_BASECLASSES (type)); | |
3647 | puts_filtered ("\n"); | |
3648 | } | |
3649 | if (TYPE_NFIELDS (type) > 0) | |
3650 | { | |
3651 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
3652 | { | |
7ba81444 MS |
3653 | printfi_filtered (spaces, |
3654 | "private_field_bits (%d bits at *", | |
c906108c | 3655 | TYPE_NFIELDS (type)); |
7ba81444 MS |
3656 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
3657 | gdb_stdout); | |
c906108c SS |
3658 | printf_filtered (")"); |
3659 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
3660 | TYPE_NFIELDS (type)); | |
3661 | puts_filtered ("\n"); | |
3662 | } | |
3663 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
3664 | { | |
7ba81444 MS |
3665 | printfi_filtered (spaces, |
3666 | "protected_field_bits (%d bits at *", | |
c906108c | 3667 | TYPE_NFIELDS (type)); |
7ba81444 MS |
3668 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
3669 | gdb_stdout); | |
c906108c SS |
3670 | printf_filtered (")"); |
3671 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
3672 | TYPE_NFIELDS (type)); | |
3673 | puts_filtered ("\n"); | |
3674 | } | |
3675 | } | |
3676 | if (TYPE_NFN_FIELDS (type) > 0) | |
3677 | { | |
3678 | dump_fn_fieldlists (type, spaces); | |
3679 | } | |
3680 | } | |
3681 | ||
b4ba55a1 JB |
3682 | /* Print the contents of the TYPE's type_specific union, assuming that |
3683 | its type-specific kind is TYPE_SPECIFIC_GNAT_STUFF. */ | |
3684 | ||
3685 | static void | |
3686 | print_gnat_stuff (struct type *type, int spaces) | |
3687 | { | |
3688 | struct type *descriptive_type = TYPE_DESCRIPTIVE_TYPE (type); | |
3689 | ||
3690 | recursive_dump_type (descriptive_type, spaces + 2); | |
3691 | } | |
3692 | ||
c906108c SS |
3693 | static struct obstack dont_print_type_obstack; |
3694 | ||
3695 | void | |
fba45db2 | 3696 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
3697 | { |
3698 | int idx; | |
3699 | ||
3700 | if (spaces == 0) | |
3701 | obstack_begin (&dont_print_type_obstack, 0); | |
3702 | ||
3703 | if (TYPE_NFIELDS (type) > 0 | |
b4ba55a1 | 3704 | || (HAVE_CPLUS_STRUCT (type) && TYPE_NFN_FIELDS (type) > 0)) |
c906108c SS |
3705 | { |
3706 | struct type **first_dont_print | |
7ba81444 | 3707 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 3708 | |
7ba81444 MS |
3709 | int i = (struct type **) |
3710 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
3711 | |
3712 | while (--i >= 0) | |
3713 | { | |
3714 | if (type == first_dont_print[i]) | |
3715 | { | |
3716 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 3717 | gdb_print_host_address (type, gdb_stdout); |
a3f17187 | 3718 | printf_filtered (_(" <same as already seen type>\n")); |
c906108c SS |
3719 | return; |
3720 | } | |
3721 | } | |
3722 | ||
3723 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
3724 | } | |
3725 | ||
3726 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 3727 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
3728 | printf_filtered ("\n"); |
3729 | printfi_filtered (spaces, "name '%s' (", | |
3730 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 3731 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c | 3732 | printf_filtered (")\n"); |
e9e79dd9 FF |
3733 | printfi_filtered (spaces, "tagname '%s' (", |
3734 | TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>"); | |
3735 | gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); | |
3736 | printf_filtered (")\n"); | |
c906108c SS |
3737 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
3738 | switch (TYPE_CODE (type)) | |
3739 | { | |
c5aa993b JM |
3740 | case TYPE_CODE_UNDEF: |
3741 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
3742 | break; | |
3743 | case TYPE_CODE_PTR: | |
3744 | printf_filtered ("(TYPE_CODE_PTR)"); | |
3745 | break; | |
3746 | case TYPE_CODE_ARRAY: | |
3747 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
3748 | break; | |
3749 | case TYPE_CODE_STRUCT: | |
3750 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
3751 | break; | |
3752 | case TYPE_CODE_UNION: | |
3753 | printf_filtered ("(TYPE_CODE_UNION)"); | |
3754 | break; | |
3755 | case TYPE_CODE_ENUM: | |
3756 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
3757 | break; | |
4f2aea11 MK |
3758 | case TYPE_CODE_FLAGS: |
3759 | printf_filtered ("(TYPE_CODE_FLAGS)"); | |
3760 | break; | |
c5aa993b JM |
3761 | case TYPE_CODE_FUNC: |
3762 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
3763 | break; | |
3764 | case TYPE_CODE_INT: | |
3765 | printf_filtered ("(TYPE_CODE_INT)"); | |
3766 | break; | |
3767 | case TYPE_CODE_FLT: | |
3768 | printf_filtered ("(TYPE_CODE_FLT)"); | |
3769 | break; | |
3770 | case TYPE_CODE_VOID: | |
3771 | printf_filtered ("(TYPE_CODE_VOID)"); | |
3772 | break; | |
3773 | case TYPE_CODE_SET: | |
3774 | printf_filtered ("(TYPE_CODE_SET)"); | |
3775 | break; | |
3776 | case TYPE_CODE_RANGE: | |
3777 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
3778 | break; | |
3779 | case TYPE_CODE_STRING: | |
3780 | printf_filtered ("(TYPE_CODE_STRING)"); | |
3781 | break; | |
3782 | case TYPE_CODE_ERROR: | |
3783 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
3784 | break; | |
0d5de010 DJ |
3785 | case TYPE_CODE_MEMBERPTR: |
3786 | printf_filtered ("(TYPE_CODE_MEMBERPTR)"); | |
3787 | break; | |
3788 | case TYPE_CODE_METHODPTR: | |
3789 | printf_filtered ("(TYPE_CODE_METHODPTR)"); | |
c5aa993b JM |
3790 | break; |
3791 | case TYPE_CODE_METHOD: | |
3792 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
3793 | break; | |
3794 | case TYPE_CODE_REF: | |
3795 | printf_filtered ("(TYPE_CODE_REF)"); | |
3796 | break; | |
3797 | case TYPE_CODE_CHAR: | |
3798 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
3799 | break; | |
3800 | case TYPE_CODE_BOOL: | |
3801 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
3802 | break; | |
e9e79dd9 FF |
3803 | case TYPE_CODE_COMPLEX: |
3804 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
3805 | break; | |
c5aa993b JM |
3806 | case TYPE_CODE_TYPEDEF: |
3807 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
3808 | break; | |
5c4e30ca DC |
3809 | case TYPE_CODE_NAMESPACE: |
3810 | printf_filtered ("(TYPE_CODE_NAMESPACE)"); | |
3811 | break; | |
c5aa993b JM |
3812 | default: |
3813 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
3814 | break; | |
c906108c SS |
3815 | } |
3816 | puts_filtered ("\n"); | |
3817 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
e9bb382b UW |
3818 | if (TYPE_OBJFILE_OWNED (type)) |
3819 | { | |
3820 | printfi_filtered (spaces, "objfile "); | |
3821 | gdb_print_host_address (TYPE_OWNER (type).objfile, gdb_stdout); | |
3822 | } | |
3823 | else | |
3824 | { | |
3825 | printfi_filtered (spaces, "gdbarch "); | |
3826 | gdb_print_host_address (TYPE_OWNER (type).gdbarch, gdb_stdout); | |
3827 | } | |
c906108c SS |
3828 | printf_filtered ("\n"); |
3829 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 3830 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
3831 | printf_filtered ("\n"); |
3832 | if (TYPE_TARGET_TYPE (type) != NULL) | |
3833 | { | |
3834 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
3835 | } | |
3836 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 3837 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
3838 | printf_filtered ("\n"); |
3839 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 3840 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 3841 | printf_filtered ("\n"); |
2fdde8f8 DJ |
3842 | printfi_filtered (spaces, "type_chain "); |
3843 | gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); | |
e9e79dd9 | 3844 | printf_filtered ("\n"); |
7ba81444 MS |
3845 | printfi_filtered (spaces, "instance_flags 0x%x", |
3846 | TYPE_INSTANCE_FLAGS (type)); | |
2fdde8f8 DJ |
3847 | if (TYPE_CONST (type)) |
3848 | { | |
3849 | puts_filtered (" TYPE_FLAG_CONST"); | |
3850 | } | |
3851 | if (TYPE_VOLATILE (type)) | |
3852 | { | |
3853 | puts_filtered (" TYPE_FLAG_VOLATILE"); | |
3854 | } | |
3855 | if (TYPE_CODE_SPACE (type)) | |
3856 | { | |
3857 | puts_filtered (" TYPE_FLAG_CODE_SPACE"); | |
3858 | } | |
3859 | if (TYPE_DATA_SPACE (type)) | |
3860 | { | |
3861 | puts_filtered (" TYPE_FLAG_DATA_SPACE"); | |
3862 | } | |
8b2dbe47 KB |
3863 | if (TYPE_ADDRESS_CLASS_1 (type)) |
3864 | { | |
3865 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_1"); | |
3866 | } | |
3867 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
3868 | { | |
3869 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_2"); | |
3870 | } | |
06d66ee9 TT |
3871 | if (TYPE_RESTRICT (type)) |
3872 | { | |
3873 | puts_filtered (" TYPE_FLAG_RESTRICT"); | |
3874 | } | |
2fdde8f8 | 3875 | puts_filtered ("\n"); |
876cecd0 TT |
3876 | |
3877 | printfi_filtered (spaces, "flags"); | |
762a036f | 3878 | if (TYPE_UNSIGNED (type)) |
c906108c SS |
3879 | { |
3880 | puts_filtered (" TYPE_FLAG_UNSIGNED"); | |
3881 | } | |
762a036f FF |
3882 | if (TYPE_NOSIGN (type)) |
3883 | { | |
3884 | puts_filtered (" TYPE_FLAG_NOSIGN"); | |
3885 | } | |
3886 | if (TYPE_STUB (type)) | |
c906108c SS |
3887 | { |
3888 | puts_filtered (" TYPE_FLAG_STUB"); | |
3889 | } | |
762a036f FF |
3890 | if (TYPE_TARGET_STUB (type)) |
3891 | { | |
3892 | puts_filtered (" TYPE_FLAG_TARGET_STUB"); | |
3893 | } | |
3894 | if (TYPE_STATIC (type)) | |
3895 | { | |
3896 | puts_filtered (" TYPE_FLAG_STATIC"); | |
3897 | } | |
762a036f FF |
3898 | if (TYPE_PROTOTYPED (type)) |
3899 | { | |
3900 | puts_filtered (" TYPE_FLAG_PROTOTYPED"); | |
3901 | } | |
3902 | if (TYPE_INCOMPLETE (type)) | |
3903 | { | |
3904 | puts_filtered (" TYPE_FLAG_INCOMPLETE"); | |
3905 | } | |
762a036f FF |
3906 | if (TYPE_VARARGS (type)) |
3907 | { | |
3908 | puts_filtered (" TYPE_FLAG_VARARGS"); | |
3909 | } | |
f5f8a009 EZ |
3910 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
3911 | an attribute for the array type, which tells whether or not we | |
3912 | have a vector, instead of a regular array. */ | |
3913 | if (TYPE_VECTOR (type)) | |
3914 | { | |
3915 | puts_filtered (" TYPE_FLAG_VECTOR"); | |
3916 | } | |
876cecd0 TT |
3917 | if (TYPE_FIXED_INSTANCE (type)) |
3918 | { | |
3919 | puts_filtered (" TYPE_FIXED_INSTANCE"); | |
3920 | } | |
3921 | if (TYPE_STUB_SUPPORTED (type)) | |
3922 | { | |
3923 | puts_filtered (" TYPE_STUB_SUPPORTED"); | |
3924 | } | |
3925 | if (TYPE_NOTTEXT (type)) | |
3926 | { | |
3927 | puts_filtered (" TYPE_NOTTEXT"); | |
3928 | } | |
c906108c SS |
3929 | puts_filtered ("\n"); |
3930 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 3931 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
3932 | puts_filtered ("\n"); |
3933 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
3934 | { | |
14e75d8e JK |
3935 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) |
3936 | printfi_filtered (spaces + 2, | |
3937 | "[%d] enumval %s type ", | |
3938 | idx, plongest (TYPE_FIELD_ENUMVAL (type, idx))); | |
3939 | else | |
3940 | printfi_filtered (spaces + 2, | |
3941 | "[%d] bitpos %d bitsize %d type ", | |
3942 | idx, TYPE_FIELD_BITPOS (type, idx), | |
3943 | TYPE_FIELD_BITSIZE (type, idx)); | |
d4f3574e | 3944 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
3945 | printf_filtered (" name '%s' (", |
3946 | TYPE_FIELD_NAME (type, idx) != NULL | |
3947 | ? TYPE_FIELD_NAME (type, idx) | |
3948 | : "<NULL>"); | |
d4f3574e | 3949 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
3950 | printf_filtered (")\n"); |
3951 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
3952 | { | |
3953 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
3954 | } | |
3955 | } | |
43bbcdc2 PH |
3956 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
3957 | { | |
3958 | printfi_filtered (spaces, "low %s%s high %s%s\n", | |
3959 | plongest (TYPE_LOW_BOUND (type)), | |
3960 | TYPE_LOW_BOUND_UNDEFINED (type) ? " (undefined)" : "", | |
3961 | plongest (TYPE_HIGH_BOUND (type)), | |
3e43a32a MS |
3962 | TYPE_HIGH_BOUND_UNDEFINED (type) |
3963 | ? " (undefined)" : ""); | |
43bbcdc2 | 3964 | } |
c906108c | 3965 | printfi_filtered (spaces, "vptr_basetype "); |
d4f3574e | 3966 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); |
c906108c SS |
3967 | puts_filtered ("\n"); |
3968 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
3969 | { | |
3970 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
3971 | } | |
7ba81444 MS |
3972 | printfi_filtered (spaces, "vptr_fieldno %d\n", |
3973 | TYPE_VPTR_FIELDNO (type)); | |
c906108c | 3974 | |
b4ba55a1 JB |
3975 | switch (TYPE_SPECIFIC_FIELD (type)) |
3976 | { | |
3977 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
3978 | printfi_filtered (spaces, "cplus_stuff "); | |
3979 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), | |
3980 | gdb_stdout); | |
3981 | puts_filtered ("\n"); | |
3982 | print_cplus_stuff (type, spaces); | |
3983 | break; | |
8da61cc4 | 3984 | |
b4ba55a1 JB |
3985 | case TYPE_SPECIFIC_GNAT_STUFF: |
3986 | printfi_filtered (spaces, "gnat_stuff "); | |
3987 | gdb_print_host_address (TYPE_GNAT_SPECIFIC (type), gdb_stdout); | |
3988 | puts_filtered ("\n"); | |
3989 | print_gnat_stuff (type, spaces); | |
3990 | break; | |
701c159d | 3991 | |
b4ba55a1 JB |
3992 | case TYPE_SPECIFIC_FLOATFORMAT: |
3993 | printfi_filtered (spaces, "floatformat "); | |
3994 | if (TYPE_FLOATFORMAT (type) == NULL) | |
3995 | puts_filtered ("(null)"); | |
3996 | else | |
3997 | { | |
3998 | puts_filtered ("{ "); | |
3999 | if (TYPE_FLOATFORMAT (type)[0] == NULL | |
4000 | || TYPE_FLOATFORMAT (type)[0]->name == NULL) | |
4001 | puts_filtered ("(null)"); | |
4002 | else | |
4003 | puts_filtered (TYPE_FLOATFORMAT (type)[0]->name); | |
4004 | ||
4005 | puts_filtered (", "); | |
4006 | if (TYPE_FLOATFORMAT (type)[1] == NULL | |
4007 | || TYPE_FLOATFORMAT (type)[1]->name == NULL) | |
4008 | puts_filtered ("(null)"); | |
4009 | else | |
4010 | puts_filtered (TYPE_FLOATFORMAT (type)[1]->name); | |
4011 | ||
4012 | puts_filtered (" }"); | |
4013 | } | |
4014 | puts_filtered ("\n"); | |
4015 | break; | |
c906108c | 4016 | |
b6cdc2c1 | 4017 | case TYPE_SPECIFIC_FUNC: |
b4ba55a1 JB |
4018 | printfi_filtered (spaces, "calling_convention %d\n", |
4019 | TYPE_CALLING_CONVENTION (type)); | |
b6cdc2c1 | 4020 | /* tail_call_list is not printed. */ |
b4ba55a1 | 4021 | break; |
c906108c | 4022 | } |
b4ba55a1 | 4023 | |
c906108c SS |
4024 | if (spaces == 0) |
4025 | obstack_free (&dont_print_type_obstack, NULL); | |
4026 | } | |
5212577a | 4027 | \f |
ae5a43e0 DJ |
4028 | /* Trivial helpers for the libiberty hash table, for mapping one |
4029 | type to another. */ | |
4030 | ||
4031 | struct type_pair | |
4032 | { | |
4033 | struct type *old, *new; | |
4034 | }; | |
4035 | ||
4036 | static hashval_t | |
4037 | type_pair_hash (const void *item) | |
4038 | { | |
4039 | const struct type_pair *pair = item; | |
d8734c88 | 4040 | |
ae5a43e0 DJ |
4041 | return htab_hash_pointer (pair->old); |
4042 | } | |
4043 | ||
4044 | static int | |
4045 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
4046 | { | |
4047 | const struct type_pair *lhs = item_lhs, *rhs = item_rhs; | |
d8734c88 | 4048 | |
ae5a43e0 DJ |
4049 | return lhs->old == rhs->old; |
4050 | } | |
4051 | ||
4052 | /* Allocate the hash table used by copy_type_recursive to walk | |
4053 | types without duplicates. We use OBJFILE's obstack, because | |
4054 | OBJFILE is about to be deleted. */ | |
4055 | ||
4056 | htab_t | |
4057 | create_copied_types_hash (struct objfile *objfile) | |
4058 | { | |
4059 | return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, | |
4060 | NULL, &objfile->objfile_obstack, | |
4061 | hashtab_obstack_allocate, | |
4062 | dummy_obstack_deallocate); | |
4063 | } | |
4064 | ||
7ba81444 MS |
4065 | /* Recursively copy (deep copy) TYPE, if it is associated with |
4066 | OBJFILE. Return a new type allocated using malloc, a saved type if | |
4067 | we have already visited TYPE (using COPIED_TYPES), or TYPE if it is | |
4068 | not associated with OBJFILE. */ | |
ae5a43e0 DJ |
4069 | |
4070 | struct type * | |
7ba81444 MS |
4071 | copy_type_recursive (struct objfile *objfile, |
4072 | struct type *type, | |
ae5a43e0 DJ |
4073 | htab_t copied_types) |
4074 | { | |
4075 | struct type_pair *stored, pair; | |
4076 | void **slot; | |
4077 | struct type *new_type; | |
4078 | ||
e9bb382b | 4079 | if (! TYPE_OBJFILE_OWNED (type)) |
ae5a43e0 DJ |
4080 | return type; |
4081 | ||
7ba81444 MS |
4082 | /* This type shouldn't be pointing to any types in other objfiles; |
4083 | if it did, the type might disappear unexpectedly. */ | |
ae5a43e0 DJ |
4084 | gdb_assert (TYPE_OBJFILE (type) == objfile); |
4085 | ||
4086 | pair.old = type; | |
4087 | slot = htab_find_slot (copied_types, &pair, INSERT); | |
4088 | if (*slot != NULL) | |
4089 | return ((struct type_pair *) *slot)->new; | |
4090 | ||
e9bb382b | 4091 | new_type = alloc_type_arch (get_type_arch (type)); |
ae5a43e0 DJ |
4092 | |
4093 | /* We must add the new type to the hash table immediately, in case | |
4094 | we encounter this type again during a recursive call below. */ | |
3e43a32a MS |
4095 | stored |
4096 | = obstack_alloc (&objfile->objfile_obstack, sizeof (struct type_pair)); | |
ae5a43e0 DJ |
4097 | stored->old = type; |
4098 | stored->new = new_type; | |
4099 | *slot = stored; | |
4100 | ||
876cecd0 TT |
4101 | /* Copy the common fields of types. For the main type, we simply |
4102 | copy the entire thing and then update specific fields as needed. */ | |
4103 | *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type); | |
e9bb382b UW |
4104 | TYPE_OBJFILE_OWNED (new_type) = 0; |
4105 | TYPE_OWNER (new_type).gdbarch = get_type_arch (type); | |
876cecd0 | 4106 | |
ae5a43e0 DJ |
4107 | if (TYPE_NAME (type)) |
4108 | TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type)); | |
4109 | if (TYPE_TAG_NAME (type)) | |
4110 | TYPE_TAG_NAME (new_type) = xstrdup (TYPE_TAG_NAME (type)); | |
ae5a43e0 DJ |
4111 | |
4112 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); | |
4113 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
4114 | ||
4115 | /* Copy the fields. */ | |
ae5a43e0 DJ |
4116 | if (TYPE_NFIELDS (type)) |
4117 | { | |
4118 | int i, nfields; | |
4119 | ||
4120 | nfields = TYPE_NFIELDS (type); | |
fc270c35 | 4121 | TYPE_FIELDS (new_type) = XCNEWVEC (struct field, nfields); |
ae5a43e0 DJ |
4122 | for (i = 0; i < nfields; i++) |
4123 | { | |
7ba81444 MS |
4124 | TYPE_FIELD_ARTIFICIAL (new_type, i) = |
4125 | TYPE_FIELD_ARTIFICIAL (type, i); | |
ae5a43e0 DJ |
4126 | TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
4127 | if (TYPE_FIELD_TYPE (type, i)) | |
4128 | TYPE_FIELD_TYPE (new_type, i) | |
4129 | = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i), | |
4130 | copied_types); | |
4131 | if (TYPE_FIELD_NAME (type, i)) | |
7ba81444 MS |
4132 | TYPE_FIELD_NAME (new_type, i) = |
4133 | xstrdup (TYPE_FIELD_NAME (type, i)); | |
d6a843b5 | 4134 | switch (TYPE_FIELD_LOC_KIND (type, i)) |
ae5a43e0 | 4135 | { |
d6a843b5 JK |
4136 | case FIELD_LOC_KIND_BITPOS: |
4137 | SET_FIELD_BITPOS (TYPE_FIELD (new_type, i), | |
4138 | TYPE_FIELD_BITPOS (type, i)); | |
4139 | break; | |
14e75d8e JK |
4140 | case FIELD_LOC_KIND_ENUMVAL: |
4141 | SET_FIELD_ENUMVAL (TYPE_FIELD (new_type, i), | |
4142 | TYPE_FIELD_ENUMVAL (type, i)); | |
4143 | break; | |
d6a843b5 JK |
4144 | case FIELD_LOC_KIND_PHYSADDR: |
4145 | SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i), | |
4146 | TYPE_FIELD_STATIC_PHYSADDR (type, i)); | |
4147 | break; | |
4148 | case FIELD_LOC_KIND_PHYSNAME: | |
4149 | SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i), | |
4150 | xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, | |
4151 | i))); | |
4152 | break; | |
4153 | default: | |
4154 | internal_error (__FILE__, __LINE__, | |
4155 | _("Unexpected type field location kind: %d"), | |
4156 | TYPE_FIELD_LOC_KIND (type, i)); | |
ae5a43e0 DJ |
4157 | } |
4158 | } | |
4159 | } | |
4160 | ||
0963b4bd | 4161 | /* For range types, copy the bounds information. */ |
43bbcdc2 PH |
4162 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
4163 | { | |
4164 | TYPE_RANGE_DATA (new_type) = xmalloc (sizeof (struct range_bounds)); | |
4165 | *TYPE_RANGE_DATA (new_type) = *TYPE_RANGE_DATA (type); | |
4166 | } | |
4167 | ||
3cdcd0ce JB |
4168 | /* Copy the data location information. */ |
4169 | if (TYPE_DATA_LOCATION (type) != NULL) | |
4170 | { | |
4171 | TYPE_DATA_LOCATION (new_type) | |
4172 | = TYPE_ALLOC (new_type, sizeof (struct dynamic_prop)); | |
4173 | memcpy (TYPE_DATA_LOCATION (new_type), TYPE_DATA_LOCATION (type), | |
4174 | sizeof (struct dynamic_prop)); | |
4175 | } | |
4176 | ||
ae5a43e0 DJ |
4177 | /* Copy pointers to other types. */ |
4178 | if (TYPE_TARGET_TYPE (type)) | |
7ba81444 MS |
4179 | TYPE_TARGET_TYPE (new_type) = |
4180 | copy_type_recursive (objfile, | |
4181 | TYPE_TARGET_TYPE (type), | |
4182 | copied_types); | |
ae5a43e0 | 4183 | if (TYPE_VPTR_BASETYPE (type)) |
7ba81444 MS |
4184 | TYPE_VPTR_BASETYPE (new_type) = |
4185 | copy_type_recursive (objfile, | |
4186 | TYPE_VPTR_BASETYPE (type), | |
4187 | copied_types); | |
ae5a43e0 DJ |
4188 | /* Maybe copy the type_specific bits. |
4189 | ||
4190 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
4191 | base classes and methods. There's no fundamental reason why we | |
4192 | can't, but at the moment it is not needed. */ | |
4193 | ||
4194 | if (TYPE_CODE (type) == TYPE_CODE_FLT) | |
d5d6fca5 | 4195 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); |
ae5a43e0 DJ |
4196 | else if (TYPE_CODE (type) == TYPE_CODE_STRUCT |
4197 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
ae5a43e0 DJ |
4198 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) |
4199 | INIT_CPLUS_SPECIFIC (new_type); | |
4200 | ||
4201 | return new_type; | |
4202 | } | |
4203 | ||
4af88198 JB |
4204 | /* Make a copy of the given TYPE, except that the pointer & reference |
4205 | types are not preserved. | |
4206 | ||
4207 | This function assumes that the given type has an associated objfile. | |
4208 | This objfile is used to allocate the new type. */ | |
4209 | ||
4210 | struct type * | |
4211 | copy_type (const struct type *type) | |
4212 | { | |
4213 | struct type *new_type; | |
4214 | ||
e9bb382b | 4215 | gdb_assert (TYPE_OBJFILE_OWNED (type)); |
4af88198 | 4216 | |
e9bb382b | 4217 | new_type = alloc_type_copy (type); |
4af88198 JB |
4218 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); |
4219 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
4220 | memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type), | |
4221 | sizeof (struct main_type)); | |
3cdcd0ce JB |
4222 | if (TYPE_DATA_LOCATION (type) != NULL) |
4223 | { | |
4224 | TYPE_DATA_LOCATION (new_type) | |
4225 | = TYPE_ALLOC (new_type, sizeof (struct dynamic_prop)); | |
4226 | memcpy (TYPE_DATA_LOCATION (new_type), TYPE_DATA_LOCATION (type), | |
4227 | sizeof (struct dynamic_prop)); | |
4228 | } | |
4af88198 JB |
4229 | |
4230 | return new_type; | |
4231 | } | |
5212577a | 4232 | \f |
e9bb382b UW |
4233 | /* Helper functions to initialize architecture-specific types. */ |
4234 | ||
4235 | /* Allocate a type structure associated with GDBARCH and set its | |
4236 | CODE, LENGTH, and NAME fields. */ | |
5212577a | 4237 | |
e9bb382b UW |
4238 | struct type * |
4239 | arch_type (struct gdbarch *gdbarch, | |
4240 | enum type_code code, int length, char *name) | |
4241 | { | |
4242 | struct type *type; | |
4243 | ||
4244 | type = alloc_type_arch (gdbarch); | |
4245 | TYPE_CODE (type) = code; | |
4246 | TYPE_LENGTH (type) = length; | |
4247 | ||
4248 | if (name) | |
4249 | TYPE_NAME (type) = xstrdup (name); | |
4250 | ||
4251 | return type; | |
4252 | } | |
4253 | ||
4254 | /* Allocate a TYPE_CODE_INT type structure associated with GDBARCH. | |
4255 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
4256 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 4257 | |
e9bb382b UW |
4258 | struct type * |
4259 | arch_integer_type (struct gdbarch *gdbarch, | |
4260 | int bit, int unsigned_p, char *name) | |
4261 | { | |
4262 | struct type *t; | |
4263 | ||
4264 | t = arch_type (gdbarch, TYPE_CODE_INT, bit / TARGET_CHAR_BIT, name); | |
4265 | if (unsigned_p) | |
4266 | TYPE_UNSIGNED (t) = 1; | |
4267 | if (name && strcmp (name, "char") == 0) | |
4268 | TYPE_NOSIGN (t) = 1; | |
4269 | ||
4270 | return t; | |
4271 | } | |
4272 | ||
4273 | /* Allocate a TYPE_CODE_CHAR type structure associated with GDBARCH. | |
4274 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
4275 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 4276 | |
e9bb382b UW |
4277 | struct type * |
4278 | arch_character_type (struct gdbarch *gdbarch, | |
4279 | int bit, int unsigned_p, char *name) | |
4280 | { | |
4281 | struct type *t; | |
4282 | ||
4283 | t = arch_type (gdbarch, TYPE_CODE_CHAR, bit / TARGET_CHAR_BIT, name); | |
4284 | if (unsigned_p) | |
4285 | TYPE_UNSIGNED (t) = 1; | |
4286 | ||
4287 | return t; | |
4288 | } | |
4289 | ||
4290 | /* Allocate a TYPE_CODE_BOOL type structure associated with GDBARCH. | |
4291 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
4292 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 4293 | |
e9bb382b UW |
4294 | struct type * |
4295 | arch_boolean_type (struct gdbarch *gdbarch, | |
4296 | int bit, int unsigned_p, char *name) | |
4297 | { | |
4298 | struct type *t; | |
4299 | ||
4300 | t = arch_type (gdbarch, TYPE_CODE_BOOL, bit / TARGET_CHAR_BIT, name); | |
4301 | if (unsigned_p) | |
4302 | TYPE_UNSIGNED (t) = 1; | |
4303 | ||
4304 | return t; | |
4305 | } | |
4306 | ||
4307 | /* Allocate a TYPE_CODE_FLT type structure associated with GDBARCH. | |
4308 | BIT is the type size in bits; if BIT equals -1, the size is | |
4309 | determined by the floatformat. NAME is the type name. Set the | |
4310 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
5212577a | 4311 | |
27067745 | 4312 | struct type * |
e9bb382b UW |
4313 | arch_float_type (struct gdbarch *gdbarch, |
4314 | int bit, char *name, const struct floatformat **floatformats) | |
8da61cc4 DJ |
4315 | { |
4316 | struct type *t; | |
4317 | ||
4318 | if (bit == -1) | |
4319 | { | |
4320 | gdb_assert (floatformats != NULL); | |
4321 | gdb_assert (floatformats[0] != NULL && floatformats[1] != NULL); | |
4322 | bit = floatformats[0]->totalsize; | |
4323 | } | |
4324 | gdb_assert (bit >= 0); | |
4325 | ||
e9bb382b | 4326 | t = arch_type (gdbarch, TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, name); |
8da61cc4 DJ |
4327 | TYPE_FLOATFORMAT (t) = floatformats; |
4328 | return t; | |
4329 | } | |
4330 | ||
e9bb382b UW |
4331 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with GDBARCH. |
4332 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
5212577a | 4333 | |
27067745 | 4334 | struct type * |
e9bb382b UW |
4335 | arch_complex_type (struct gdbarch *gdbarch, |
4336 | char *name, struct type *target_type) | |
27067745 UW |
4337 | { |
4338 | struct type *t; | |
d8734c88 | 4339 | |
e9bb382b UW |
4340 | t = arch_type (gdbarch, TYPE_CODE_COMPLEX, |
4341 | 2 * TYPE_LENGTH (target_type), name); | |
27067745 UW |
4342 | TYPE_TARGET_TYPE (t) = target_type; |
4343 | return t; | |
4344 | } | |
4345 | ||
e9bb382b | 4346 | /* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH. |
eb90ce83 | 4347 | NAME is the type name. LENGTH is the size of the flag word in bytes. */ |
5212577a | 4348 | |
e9bb382b UW |
4349 | struct type * |
4350 | arch_flags_type (struct gdbarch *gdbarch, char *name, int length) | |
4351 | { | |
4352 | int nfields = length * TARGET_CHAR_BIT; | |
4353 | struct type *type; | |
4354 | ||
4355 | type = arch_type (gdbarch, TYPE_CODE_FLAGS, length, name); | |
4356 | TYPE_UNSIGNED (type) = 1; | |
4357 | TYPE_NFIELDS (type) = nfields; | |
4358 | TYPE_FIELDS (type) = TYPE_ZALLOC (type, nfields * sizeof (struct field)); | |
4359 | ||
4360 | return type; | |
4361 | } | |
4362 | ||
4363 | /* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
4364 | position BITPOS is called NAME. */ | |
5212577a | 4365 | |
e9bb382b UW |
4366 | void |
4367 | append_flags_type_flag (struct type *type, int bitpos, char *name) | |
4368 | { | |
4369 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS); | |
4370 | gdb_assert (bitpos < TYPE_NFIELDS (type)); | |
4371 | gdb_assert (bitpos >= 0); | |
4372 | ||
4373 | if (name) | |
4374 | { | |
4375 | TYPE_FIELD_NAME (type, bitpos) = xstrdup (name); | |
945b3a32 | 4376 | SET_FIELD_BITPOS (TYPE_FIELD (type, bitpos), bitpos); |
e9bb382b UW |
4377 | } |
4378 | else | |
4379 | { | |
4380 | /* Don't show this field to the user. */ | |
945b3a32 | 4381 | SET_FIELD_BITPOS (TYPE_FIELD (type, bitpos), -1); |
e9bb382b UW |
4382 | } |
4383 | } | |
4384 | ||
4385 | /* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as | |
4386 | specified by CODE) associated with GDBARCH. NAME is the type name. */ | |
5212577a | 4387 | |
e9bb382b UW |
4388 | struct type * |
4389 | arch_composite_type (struct gdbarch *gdbarch, char *name, enum type_code code) | |
4390 | { | |
4391 | struct type *t; | |
d8734c88 | 4392 | |
e9bb382b UW |
4393 | gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION); |
4394 | t = arch_type (gdbarch, code, 0, NULL); | |
4395 | TYPE_TAG_NAME (t) = name; | |
4396 | INIT_CPLUS_SPECIFIC (t); | |
4397 | return t; | |
4398 | } | |
4399 | ||
4400 | /* Add new field with name NAME and type FIELD to composite type T. | |
f5dff777 DJ |
4401 | Do not set the field's position or adjust the type's length; |
4402 | the caller should do so. Return the new field. */ | |
5212577a | 4403 | |
f5dff777 DJ |
4404 | struct field * |
4405 | append_composite_type_field_raw (struct type *t, char *name, | |
4406 | struct type *field) | |
e9bb382b UW |
4407 | { |
4408 | struct field *f; | |
d8734c88 | 4409 | |
e9bb382b UW |
4410 | TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; |
4411 | TYPE_FIELDS (t) = xrealloc (TYPE_FIELDS (t), | |
4412 | sizeof (struct field) * TYPE_NFIELDS (t)); | |
4413 | f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); | |
4414 | memset (f, 0, sizeof f[0]); | |
4415 | FIELD_TYPE (f[0]) = field; | |
4416 | FIELD_NAME (f[0]) = name; | |
f5dff777 DJ |
4417 | return f; |
4418 | } | |
4419 | ||
4420 | /* Add new field with name NAME and type FIELD to composite type T. | |
4421 | ALIGNMENT (if non-zero) specifies the minimum field alignment. */ | |
5212577a | 4422 | |
f5dff777 DJ |
4423 | void |
4424 | append_composite_type_field_aligned (struct type *t, char *name, | |
4425 | struct type *field, int alignment) | |
4426 | { | |
4427 | struct field *f = append_composite_type_field_raw (t, name, field); | |
d8734c88 | 4428 | |
e9bb382b UW |
4429 | if (TYPE_CODE (t) == TYPE_CODE_UNION) |
4430 | { | |
4431 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) | |
4432 | TYPE_LENGTH (t) = TYPE_LENGTH (field); | |
4433 | } | |
4434 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
4435 | { | |
4436 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
4437 | if (TYPE_NFIELDS (t) > 1) | |
4438 | { | |
f41f5e61 PA |
4439 | SET_FIELD_BITPOS (f[0], |
4440 | (FIELD_BITPOS (f[-1]) | |
4441 | + (TYPE_LENGTH (FIELD_TYPE (f[-1])) | |
4442 | * TARGET_CHAR_BIT))); | |
e9bb382b UW |
4443 | |
4444 | if (alignment) | |
4445 | { | |
86c3c1fc AB |
4446 | int left; |
4447 | ||
4448 | alignment *= TARGET_CHAR_BIT; | |
4449 | left = FIELD_BITPOS (f[0]) % alignment; | |
d8734c88 | 4450 | |
e9bb382b UW |
4451 | if (left) |
4452 | { | |
f41f5e61 | 4453 | SET_FIELD_BITPOS (f[0], FIELD_BITPOS (f[0]) + (alignment - left)); |
86c3c1fc | 4454 | TYPE_LENGTH (t) += (alignment - left) / TARGET_CHAR_BIT; |
e9bb382b UW |
4455 | } |
4456 | } | |
4457 | } | |
4458 | } | |
4459 | } | |
4460 | ||
4461 | /* Add new field with name NAME and type FIELD to composite type T. */ | |
5212577a | 4462 | |
e9bb382b UW |
4463 | void |
4464 | append_composite_type_field (struct type *t, char *name, | |
4465 | struct type *field) | |
4466 | { | |
4467 | append_composite_type_field_aligned (t, name, field, 0); | |
4468 | } | |
4469 | ||
000177f0 AC |
4470 | static struct gdbarch_data *gdbtypes_data; |
4471 | ||
4472 | const struct builtin_type * | |
4473 | builtin_type (struct gdbarch *gdbarch) | |
4474 | { | |
4475 | return gdbarch_data (gdbarch, gdbtypes_data); | |
4476 | } | |
4477 | ||
4478 | static void * | |
4479 | gdbtypes_post_init (struct gdbarch *gdbarch) | |
4480 | { | |
4481 | struct builtin_type *builtin_type | |
4482 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); | |
4483 | ||
46bf5051 | 4484 | /* Basic types. */ |
e9bb382b UW |
4485 | builtin_type->builtin_void |
4486 | = arch_type (gdbarch, TYPE_CODE_VOID, 1, "void"); | |
4487 | builtin_type->builtin_char | |
4488 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
4489 | !gdbarch_char_signed (gdbarch), "char"); | |
4490 | builtin_type->builtin_signed_char | |
4491 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
4492 | 0, "signed char"); | |
4493 | builtin_type->builtin_unsigned_char | |
4494 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
4495 | 1, "unsigned char"); | |
4496 | builtin_type->builtin_short | |
4497 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
4498 | 0, "short"); | |
4499 | builtin_type->builtin_unsigned_short | |
4500 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
4501 | 1, "unsigned short"); | |
4502 | builtin_type->builtin_int | |
4503 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
4504 | 0, "int"); | |
4505 | builtin_type->builtin_unsigned_int | |
4506 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
4507 | 1, "unsigned int"); | |
4508 | builtin_type->builtin_long | |
4509 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
4510 | 0, "long"); | |
4511 | builtin_type->builtin_unsigned_long | |
4512 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
4513 | 1, "unsigned long"); | |
4514 | builtin_type->builtin_long_long | |
4515 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
4516 | 0, "long long"); | |
4517 | builtin_type->builtin_unsigned_long_long | |
4518 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
4519 | 1, "unsigned long long"); | |
70bd8e24 | 4520 | builtin_type->builtin_float |
e9bb382b | 4521 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), |
27067745 | 4522 | "float", gdbarch_float_format (gdbarch)); |
70bd8e24 | 4523 | builtin_type->builtin_double |
e9bb382b | 4524 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), |
27067745 | 4525 | "double", gdbarch_double_format (gdbarch)); |
70bd8e24 | 4526 | builtin_type->builtin_long_double |
e9bb382b | 4527 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), |
27067745 | 4528 | "long double", gdbarch_long_double_format (gdbarch)); |
70bd8e24 | 4529 | builtin_type->builtin_complex |
e9bb382b UW |
4530 | = arch_complex_type (gdbarch, "complex", |
4531 | builtin_type->builtin_float); | |
70bd8e24 | 4532 | builtin_type->builtin_double_complex |
e9bb382b UW |
4533 | = arch_complex_type (gdbarch, "double complex", |
4534 | builtin_type->builtin_double); | |
4535 | builtin_type->builtin_string | |
4536 | = arch_type (gdbarch, TYPE_CODE_STRING, 1, "string"); | |
4537 | builtin_type->builtin_bool | |
4538 | = arch_type (gdbarch, TYPE_CODE_BOOL, 1, "bool"); | |
000177f0 | 4539 | |
7678ef8f TJB |
4540 | /* The following three are about decimal floating point types, which |
4541 | are 32-bits, 64-bits and 128-bits respectively. */ | |
4542 | builtin_type->builtin_decfloat | |
e9bb382b | 4543 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 32 / 8, "_Decimal32"); |
7678ef8f | 4544 | builtin_type->builtin_decdouble |
e9bb382b | 4545 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 64 / 8, "_Decimal64"); |
7678ef8f | 4546 | builtin_type->builtin_declong |
e9bb382b | 4547 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 128 / 8, "_Decimal128"); |
7678ef8f | 4548 | |
69feb676 | 4549 | /* "True" character types. */ |
e9bb382b UW |
4550 | builtin_type->builtin_true_char |
4551 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 0, "true character"); | |
4552 | builtin_type->builtin_true_unsigned_char | |
4553 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 1, "true character"); | |
69feb676 | 4554 | |
df4df182 | 4555 | /* Fixed-size integer types. */ |
e9bb382b UW |
4556 | builtin_type->builtin_int0 |
4557 | = arch_integer_type (gdbarch, 0, 0, "int0_t"); | |
4558 | builtin_type->builtin_int8 | |
4559 | = arch_integer_type (gdbarch, 8, 0, "int8_t"); | |
4560 | builtin_type->builtin_uint8 | |
4561 | = arch_integer_type (gdbarch, 8, 1, "uint8_t"); | |
4562 | builtin_type->builtin_int16 | |
4563 | = arch_integer_type (gdbarch, 16, 0, "int16_t"); | |
4564 | builtin_type->builtin_uint16 | |
4565 | = arch_integer_type (gdbarch, 16, 1, "uint16_t"); | |
4566 | builtin_type->builtin_int32 | |
4567 | = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
4568 | builtin_type->builtin_uint32 | |
4569 | = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
4570 | builtin_type->builtin_int64 | |
4571 | = arch_integer_type (gdbarch, 64, 0, "int64_t"); | |
4572 | builtin_type->builtin_uint64 | |
4573 | = arch_integer_type (gdbarch, 64, 1, "uint64_t"); | |
4574 | builtin_type->builtin_int128 | |
4575 | = arch_integer_type (gdbarch, 128, 0, "int128_t"); | |
4576 | builtin_type->builtin_uint128 | |
4577 | = arch_integer_type (gdbarch, 128, 1, "uint128_t"); | |
2844d6b5 KW |
4578 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_int8) |= |
4579 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
4580 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_uint8) |= | |
4581 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
df4df182 | 4582 | |
9a22f0d0 PM |
4583 | /* Wide character types. */ |
4584 | builtin_type->builtin_char16 | |
4585 | = arch_integer_type (gdbarch, 16, 0, "char16_t"); | |
4586 | builtin_type->builtin_char32 | |
4587 | = arch_integer_type (gdbarch, 32, 0, "char32_t"); | |
4588 | ||
4589 | ||
46bf5051 | 4590 | /* Default data/code pointer types. */ |
e9bb382b UW |
4591 | builtin_type->builtin_data_ptr |
4592 | = lookup_pointer_type (builtin_type->builtin_void); | |
4593 | builtin_type->builtin_func_ptr | |
4594 | = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
0875794a JK |
4595 | builtin_type->builtin_func_func |
4596 | = lookup_function_type (builtin_type->builtin_func_ptr); | |
46bf5051 | 4597 | |
78267919 | 4598 | /* This type represents a GDB internal function. */ |
e9bb382b UW |
4599 | builtin_type->internal_fn |
4600 | = arch_type (gdbarch, TYPE_CODE_INTERNAL_FUNCTION, 0, | |
4601 | "<internal function>"); | |
78267919 | 4602 | |
e81e7f5e SC |
4603 | /* This type represents an xmethod. */ |
4604 | builtin_type->xmethod | |
4605 | = arch_type (gdbarch, TYPE_CODE_XMETHOD, 0, "<xmethod>"); | |
4606 | ||
46bf5051 UW |
4607 | return builtin_type; |
4608 | } | |
4609 | ||
46bf5051 UW |
4610 | /* This set of objfile-based types is intended to be used by symbol |
4611 | readers as basic types. */ | |
4612 | ||
4613 | static const struct objfile_data *objfile_type_data; | |
4614 | ||
4615 | const struct objfile_type * | |
4616 | objfile_type (struct objfile *objfile) | |
4617 | { | |
4618 | struct gdbarch *gdbarch; | |
4619 | struct objfile_type *objfile_type | |
4620 | = objfile_data (objfile, objfile_type_data); | |
4621 | ||
4622 | if (objfile_type) | |
4623 | return objfile_type; | |
4624 | ||
4625 | objfile_type = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
4626 | 1, struct objfile_type); | |
4627 | ||
4628 | /* Use the objfile architecture to determine basic type properties. */ | |
4629 | gdbarch = get_objfile_arch (objfile); | |
4630 | ||
4631 | /* Basic types. */ | |
4632 | objfile_type->builtin_void | |
4633 | = init_type (TYPE_CODE_VOID, 1, | |
4634 | 0, | |
4635 | "void", objfile); | |
4636 | ||
4637 | objfile_type->builtin_char | |
4638 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
4639 | (TYPE_FLAG_NOSIGN | |
4640 | | (gdbarch_char_signed (gdbarch) ? 0 : TYPE_FLAG_UNSIGNED)), | |
4641 | "char", objfile); | |
4642 | objfile_type->builtin_signed_char | |
4643 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
4644 | 0, | |
4645 | "signed char", objfile); | |
4646 | objfile_type->builtin_unsigned_char | |
4647 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
4648 | TYPE_FLAG_UNSIGNED, | |
4649 | "unsigned char", objfile); | |
4650 | objfile_type->builtin_short | |
4651 | = init_type (TYPE_CODE_INT, | |
4652 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
4653 | 0, "short", objfile); | |
4654 | objfile_type->builtin_unsigned_short | |
4655 | = init_type (TYPE_CODE_INT, | |
4656 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
4657 | TYPE_FLAG_UNSIGNED, "unsigned short", objfile); | |
4658 | objfile_type->builtin_int | |
4659 | = init_type (TYPE_CODE_INT, | |
4660 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
4661 | 0, "int", objfile); | |
4662 | objfile_type->builtin_unsigned_int | |
4663 | = init_type (TYPE_CODE_INT, | |
4664 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
4665 | TYPE_FLAG_UNSIGNED, "unsigned int", objfile); | |
4666 | objfile_type->builtin_long | |
4667 | = init_type (TYPE_CODE_INT, | |
4668 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
4669 | 0, "long", objfile); | |
4670 | objfile_type->builtin_unsigned_long | |
4671 | = init_type (TYPE_CODE_INT, | |
4672 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
4673 | TYPE_FLAG_UNSIGNED, "unsigned long", objfile); | |
4674 | objfile_type->builtin_long_long | |
4675 | = init_type (TYPE_CODE_INT, | |
4676 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
4677 | 0, "long long", objfile); | |
4678 | objfile_type->builtin_unsigned_long_long | |
4679 | = init_type (TYPE_CODE_INT, | |
4680 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
4681 | TYPE_FLAG_UNSIGNED, "unsigned long long", objfile); | |
4682 | ||
4683 | objfile_type->builtin_float | |
4684 | = init_type (TYPE_CODE_FLT, | |
4685 | gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, | |
4686 | 0, "float", objfile); | |
4687 | TYPE_FLOATFORMAT (objfile_type->builtin_float) | |
4688 | = gdbarch_float_format (gdbarch); | |
4689 | objfile_type->builtin_double | |
4690 | = init_type (TYPE_CODE_FLT, | |
4691 | gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
4692 | 0, "double", objfile); | |
4693 | TYPE_FLOATFORMAT (objfile_type->builtin_double) | |
4694 | = gdbarch_double_format (gdbarch); | |
4695 | objfile_type->builtin_long_double | |
4696 | = init_type (TYPE_CODE_FLT, | |
4697 | gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
4698 | 0, "long double", objfile); | |
4699 | TYPE_FLOATFORMAT (objfile_type->builtin_long_double) | |
4700 | = gdbarch_long_double_format (gdbarch); | |
4701 | ||
4702 | /* This type represents a type that was unrecognized in symbol read-in. */ | |
4703 | objfile_type->builtin_error | |
4704 | = init_type (TYPE_CODE_ERROR, 0, 0, "<unknown type>", objfile); | |
4705 | ||
4706 | /* The following set of types is used for symbols with no | |
4707 | debug information. */ | |
4708 | objfile_type->nodebug_text_symbol | |
4709 | = init_type (TYPE_CODE_FUNC, 1, 0, | |
4710 | "<text variable, no debug info>", objfile); | |
4711 | TYPE_TARGET_TYPE (objfile_type->nodebug_text_symbol) | |
4712 | = objfile_type->builtin_int; | |
0875794a JK |
4713 | objfile_type->nodebug_text_gnu_ifunc_symbol |
4714 | = init_type (TYPE_CODE_FUNC, 1, TYPE_FLAG_GNU_IFUNC, | |
4715 | "<text gnu-indirect-function variable, no debug info>", | |
4716 | objfile); | |
4717 | TYPE_TARGET_TYPE (objfile_type->nodebug_text_gnu_ifunc_symbol) | |
4718 | = objfile_type->nodebug_text_symbol; | |
4719 | objfile_type->nodebug_got_plt_symbol | |
4720 | = init_type (TYPE_CODE_PTR, gdbarch_addr_bit (gdbarch) / 8, 0, | |
4721 | "<text from jump slot in .got.plt, no debug info>", | |
4722 | objfile); | |
4723 | TYPE_TARGET_TYPE (objfile_type->nodebug_got_plt_symbol) | |
4724 | = objfile_type->nodebug_text_symbol; | |
46bf5051 UW |
4725 | objfile_type->nodebug_data_symbol |
4726 | = init_type (TYPE_CODE_INT, | |
4727 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
4728 | "<data variable, no debug info>", objfile); | |
4729 | objfile_type->nodebug_unknown_symbol | |
4730 | = init_type (TYPE_CODE_INT, 1, 0, | |
4731 | "<variable (not text or data), no debug info>", objfile); | |
4732 | objfile_type->nodebug_tls_symbol | |
4733 | = init_type (TYPE_CODE_INT, | |
4734 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
4735 | "<thread local variable, no debug info>", objfile); | |
000177f0 AC |
4736 | |
4737 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
0a7cfe2c | 4738 | the same. |
000177f0 AC |
4739 | |
4740 | The upshot is: | |
4741 | - gdb's `struct type' always describes the target's | |
4742 | representation. | |
4743 | - gdb's `struct value' objects should always hold values in | |
4744 | target form. | |
4745 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
4746 | address space that the assembler and linker work with. Thus, | |
4747 | since target_read_memory takes a CORE_ADDR as an argument, it | |
4748 | can access any memory on the target, even if the processor has | |
4749 | separate code and data address spaces. | |
4750 | ||
46bf5051 UW |
4751 | In this context, objfile_type->builtin_core_addr is a bit odd: |
4752 | it's a target type for a value the target will never see. It's | |
4753 | only used to hold the values of (typeless) linker symbols, which | |
4754 | are indeed in the unified virtual address space. */ | |
000177f0 | 4755 | |
46bf5051 UW |
4756 | objfile_type->builtin_core_addr |
4757 | = init_type (TYPE_CODE_INT, | |
4758 | gdbarch_addr_bit (gdbarch) / 8, | |
4759 | TYPE_FLAG_UNSIGNED, "__CORE_ADDR", objfile); | |
64c50499 | 4760 | |
46bf5051 UW |
4761 | set_objfile_data (objfile, objfile_type_data, objfile_type); |
4762 | return objfile_type; | |
000177f0 AC |
4763 | } |
4764 | ||
5212577a | 4765 | extern initialize_file_ftype _initialize_gdbtypes; |
46bf5051 | 4766 | |
c906108c | 4767 | void |
fba45db2 | 4768 | _initialize_gdbtypes (void) |
c906108c | 4769 | { |
5674de60 | 4770 | gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
46bf5051 | 4771 | objfile_type_data = register_objfile_data (); |
5674de60 | 4772 | |
ccce17b0 YQ |
4773 | add_setshow_zuinteger_cmd ("overload", no_class, &overload_debug, |
4774 | _("Set debugging of C++ overloading."), | |
4775 | _("Show debugging of C++ overloading."), | |
4776 | _("When enabled, ranking of the " | |
4777 | "functions is displayed."), | |
4778 | NULL, | |
4779 | show_overload_debug, | |
4780 | &setdebuglist, &showdebuglist); | |
5674de60 | 4781 | |
7ba81444 | 4782 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 | 4783 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3e43a32a MS |
4784 | &opaque_type_resolution, |
4785 | _("Set resolution of opaque struct/class/union" | |
4786 | " types (if set before loading symbols)."), | |
4787 | _("Show resolution of opaque struct/class/union" | |
4788 | " types (if set before loading symbols)."), | |
4789 | NULL, NULL, | |
5674de60 UW |
4790 | show_opaque_type_resolution, |
4791 | &setlist, &showlist); | |
a451cb65 KS |
4792 | |
4793 | /* Add an option to permit non-strict type checking. */ | |
4794 | add_setshow_boolean_cmd ("type", class_support, | |
4795 | &strict_type_checking, | |
4796 | _("Set strict type checking."), | |
4797 | _("Show strict type checking."), | |
4798 | NULL, NULL, | |
4799 | show_strict_type_checking, | |
4800 | &setchecklist, &showchecklist); | |
c906108c | 4801 | } |