Commit | Line | Data |
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c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
4f2aea11 | 2 | |
61baf725 | 3 | Copyright (C) 1992-2017 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}; | |
e15c3eb4 | 54 | const struct rank CV_CONVERSION_BADNESS = {1, 0}; |
a9d5ef47 SW |
55 | const struct rank INTEGER_CONVERSION_BADNESS = {2,0}; |
56 | const struct rank FLOAT_CONVERSION_BADNESS = {2,0}; | |
57 | const struct rank INT_FLOAT_CONVERSION_BADNESS = {2,0}; | |
58 | const struct rank VOID_PTR_CONVERSION_BADNESS = {2,0}; | |
5b4f6e25 | 59 | const struct rank BOOL_CONVERSION_BADNESS = {3,0}; |
a9d5ef47 SW |
60 | const struct rank BASE_CONVERSION_BADNESS = {2,0}; |
61 | const struct rank REFERENCE_CONVERSION_BADNESS = {2,0}; | |
da096638 | 62 | const struct rank NULL_POINTER_CONVERSION_BADNESS = {2,0}; |
a9d5ef47 | 63 | const struct rank NS_POINTER_CONVERSION_BADNESS = {10,0}; |
a451cb65 | 64 | const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS = {3,0}; |
6403aeea | 65 | |
8da61cc4 | 66 | /* Floatformat pairs. */ |
f9e9243a UW |
67 | const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN] = { |
68 | &floatformat_ieee_half_big, | |
69 | &floatformat_ieee_half_little | |
70 | }; | |
8da61cc4 DJ |
71 | const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { |
72 | &floatformat_ieee_single_big, | |
73 | &floatformat_ieee_single_little | |
74 | }; | |
75 | const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { | |
76 | &floatformat_ieee_double_big, | |
77 | &floatformat_ieee_double_little | |
78 | }; | |
79 | const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { | |
80 | &floatformat_ieee_double_big, | |
81 | &floatformat_ieee_double_littlebyte_bigword | |
82 | }; | |
83 | const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { | |
84 | &floatformat_i387_ext, | |
85 | &floatformat_i387_ext | |
86 | }; | |
87 | const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { | |
88 | &floatformat_m68881_ext, | |
89 | &floatformat_m68881_ext | |
90 | }; | |
91 | const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { | |
92 | &floatformat_arm_ext_big, | |
93 | &floatformat_arm_ext_littlebyte_bigword | |
94 | }; | |
95 | const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { | |
96 | &floatformat_ia64_spill_big, | |
97 | &floatformat_ia64_spill_little | |
98 | }; | |
99 | const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = { | |
100 | &floatformat_ia64_quad_big, | |
101 | &floatformat_ia64_quad_little | |
102 | }; | |
103 | const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { | |
104 | &floatformat_vax_f, | |
105 | &floatformat_vax_f | |
106 | }; | |
107 | const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { | |
108 | &floatformat_vax_d, | |
109 | &floatformat_vax_d | |
110 | }; | |
b14d30e1 | 111 | const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { |
f5aee5ee AM |
112 | &floatformat_ibm_long_double_big, |
113 | &floatformat_ibm_long_double_little | |
b14d30e1 | 114 | }; |
8da61cc4 | 115 | |
2873700e KS |
116 | /* Should opaque types be resolved? */ |
117 | ||
118 | static int opaque_type_resolution = 1; | |
119 | ||
120 | /* A flag to enable printing of debugging information of C++ | |
121 | overloading. */ | |
122 | ||
123 | unsigned int overload_debug = 0; | |
124 | ||
a451cb65 KS |
125 | /* A flag to enable strict type checking. */ |
126 | ||
127 | static int strict_type_checking = 1; | |
128 | ||
2873700e | 129 | /* A function to show whether opaque types are resolved. */ |
5212577a | 130 | |
920d2a44 AC |
131 | static void |
132 | show_opaque_type_resolution (struct ui_file *file, int from_tty, | |
7ba81444 MS |
133 | struct cmd_list_element *c, |
134 | const char *value) | |
920d2a44 | 135 | { |
3e43a32a MS |
136 | fprintf_filtered (file, _("Resolution of opaque struct/class/union types " |
137 | "(if set before loading symbols) is %s.\n"), | |
920d2a44 AC |
138 | value); |
139 | } | |
140 | ||
2873700e | 141 | /* A function to show whether C++ overload debugging is enabled. */ |
5212577a | 142 | |
920d2a44 AC |
143 | static void |
144 | show_overload_debug (struct ui_file *file, int from_tty, | |
145 | struct cmd_list_element *c, const char *value) | |
146 | { | |
7ba81444 MS |
147 | fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"), |
148 | value); | |
920d2a44 | 149 | } |
c906108c | 150 | |
a451cb65 KS |
151 | /* A function to show the status of strict type checking. */ |
152 | ||
153 | static void | |
154 | show_strict_type_checking (struct ui_file *file, int from_tty, | |
155 | struct cmd_list_element *c, const char *value) | |
156 | { | |
157 | fprintf_filtered (file, _("Strict type checking is %s.\n"), value); | |
158 | } | |
159 | ||
5212577a | 160 | \f |
e9bb382b UW |
161 | /* Allocate a new OBJFILE-associated type structure and fill it |
162 | with some defaults. Space for the type structure is allocated | |
163 | on the objfile's objfile_obstack. */ | |
c906108c SS |
164 | |
165 | struct type * | |
fba45db2 | 166 | alloc_type (struct objfile *objfile) |
c906108c | 167 | { |
52f0bd74 | 168 | struct type *type; |
c906108c | 169 | |
e9bb382b UW |
170 | gdb_assert (objfile != NULL); |
171 | ||
7ba81444 | 172 | /* Alloc the structure and start off with all fields zeroed. */ |
e9bb382b UW |
173 | type = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct type); |
174 | TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (&objfile->objfile_obstack, | |
175 | struct main_type); | |
176 | OBJSTAT (objfile, n_types++); | |
c906108c | 177 | |
e9bb382b UW |
178 | TYPE_OBJFILE_OWNED (type) = 1; |
179 | TYPE_OWNER (type).objfile = objfile; | |
c906108c | 180 | |
7ba81444 | 181 | /* Initialize the fields that might not be zero. */ |
c906108c SS |
182 | |
183 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
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 | |
8f57eec2 | 191 | on the obstack associated with GDBARCH. */ |
e9bb382b UW |
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 | ||
8f57eec2 PP |
202 | type = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct type); |
203 | TYPE_MAIN_TYPE (type) = GDBARCH_OBSTACK_ZALLOC (gdbarch, 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; | |
e9bb382b UW |
211 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
212 | ||
213 | return type; | |
214 | } | |
215 | ||
216 | /* If TYPE is objfile-associated, allocate a new type structure | |
217 | associated with the same objfile. If TYPE is gdbarch-associated, | |
218 | allocate a new type structure associated with the same gdbarch. */ | |
219 | ||
220 | struct type * | |
221 | alloc_type_copy (const struct type *type) | |
222 | { | |
223 | if (TYPE_OBJFILE_OWNED (type)) | |
224 | return alloc_type (TYPE_OWNER (type).objfile); | |
225 | else | |
226 | return alloc_type_arch (TYPE_OWNER (type).gdbarch); | |
227 | } | |
228 | ||
229 | /* If TYPE is gdbarch-associated, return that architecture. | |
230 | If TYPE is objfile-associated, return that objfile's architecture. */ | |
231 | ||
232 | struct gdbarch * | |
233 | get_type_arch (const struct type *type) | |
234 | { | |
235 | if (TYPE_OBJFILE_OWNED (type)) | |
236 | return get_objfile_arch (TYPE_OWNER (type).objfile); | |
237 | else | |
238 | return TYPE_OWNER (type).gdbarch; | |
239 | } | |
240 | ||
99ad9427 YQ |
241 | /* See gdbtypes.h. */ |
242 | ||
243 | struct type * | |
244 | get_target_type (struct type *type) | |
245 | { | |
246 | if (type != NULL) | |
247 | { | |
248 | type = TYPE_TARGET_TYPE (type); | |
249 | if (type != NULL) | |
250 | type = check_typedef (type); | |
251 | } | |
252 | ||
253 | return type; | |
254 | } | |
255 | ||
2e056931 SM |
256 | /* See gdbtypes.h. */ |
257 | ||
258 | unsigned int | |
259 | type_length_units (struct type *type) | |
260 | { | |
261 | struct gdbarch *arch = get_type_arch (type); | |
262 | int unit_size = gdbarch_addressable_memory_unit_size (arch); | |
263 | ||
264 | return TYPE_LENGTH (type) / unit_size; | |
265 | } | |
266 | ||
2fdde8f8 DJ |
267 | /* Alloc a new type instance structure, fill it with some defaults, |
268 | and point it at OLDTYPE. Allocate the new type instance from the | |
269 | same place as OLDTYPE. */ | |
270 | ||
271 | static struct type * | |
272 | alloc_type_instance (struct type *oldtype) | |
273 | { | |
274 | struct type *type; | |
275 | ||
276 | /* Allocate the structure. */ | |
277 | ||
e9bb382b | 278 | if (! TYPE_OBJFILE_OWNED (oldtype)) |
41bf6aca | 279 | type = XCNEW (struct type); |
2fdde8f8 | 280 | else |
1deafd4e PA |
281 | type = OBSTACK_ZALLOC (&TYPE_OBJFILE (oldtype)->objfile_obstack, |
282 | struct type); | |
283 | ||
2fdde8f8 DJ |
284 | TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype); |
285 | ||
286 | TYPE_CHAIN (type) = type; /* Chain back to itself for now. */ | |
287 | ||
c16abbde | 288 | return type; |
2fdde8f8 DJ |
289 | } |
290 | ||
291 | /* Clear all remnants of the previous type at TYPE, in preparation for | |
e9bb382b | 292 | replacing it with something else. Preserve owner information. */ |
5212577a | 293 | |
2fdde8f8 DJ |
294 | static void |
295 | smash_type (struct type *type) | |
296 | { | |
e9bb382b UW |
297 | int objfile_owned = TYPE_OBJFILE_OWNED (type); |
298 | union type_owner owner = TYPE_OWNER (type); | |
299 | ||
2fdde8f8 DJ |
300 | memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
301 | ||
e9bb382b UW |
302 | /* Restore owner information. */ |
303 | TYPE_OBJFILE_OWNED (type) = objfile_owned; | |
304 | TYPE_OWNER (type) = owner; | |
305 | ||
2fdde8f8 DJ |
306 | /* For now, delete the rings. */ |
307 | TYPE_CHAIN (type) = type; | |
308 | ||
309 | /* For now, leave the pointer/reference types alone. */ | |
310 | } | |
311 | ||
c906108c SS |
312 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
313 | to a pointer to memory where the pointer type should be stored. | |
314 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
315 | We allocate new memory if needed. */ | |
316 | ||
317 | struct type * | |
fba45db2 | 318 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 319 | { |
52f0bd74 | 320 | struct type *ntype; /* New type */ |
053cb41b | 321 | struct type *chain; |
c906108c SS |
322 | |
323 | ntype = TYPE_POINTER_TYPE (type); | |
324 | ||
c5aa993b | 325 | if (ntype) |
c906108c | 326 | { |
c5aa993b | 327 | if (typeptr == 0) |
7ba81444 MS |
328 | return ntype; /* Don't care about alloc, |
329 | and have new type. */ | |
c906108c | 330 | else if (*typeptr == 0) |
c5aa993b | 331 | { |
7ba81444 | 332 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 333 | return ntype; |
c5aa993b | 334 | } |
c906108c SS |
335 | } |
336 | ||
337 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
338 | { | |
e9bb382b | 339 | ntype = alloc_type_copy (type); |
c906108c SS |
340 | if (typeptr) |
341 | *typeptr = ntype; | |
342 | } | |
7ba81444 | 343 | else /* We have storage, but need to reset it. */ |
c906108c SS |
344 | { |
345 | ntype = *typeptr; | |
053cb41b | 346 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 347 | smash_type (ntype); |
053cb41b | 348 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
349 | } |
350 | ||
351 | TYPE_TARGET_TYPE (ntype) = type; | |
352 | TYPE_POINTER_TYPE (type) = ntype; | |
353 | ||
5212577a | 354 | /* FIXME! Assumes the machine has only one representation for pointers! */ |
c906108c | 355 | |
50810684 UW |
356 | TYPE_LENGTH (ntype) |
357 | = gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c SS |
358 | TYPE_CODE (ntype) = TYPE_CODE_PTR; |
359 | ||
67b2adb2 | 360 | /* Mark pointers as unsigned. The target converts between pointers |
76e71323 | 361 | and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and |
7ba81444 | 362 | gdbarch_address_to_pointer. */ |
876cecd0 | 363 | TYPE_UNSIGNED (ntype) = 1; |
c5aa993b | 364 | |
053cb41b JB |
365 | /* Update the length of all the other variants of this type. */ |
366 | chain = TYPE_CHAIN (ntype); | |
367 | while (chain != ntype) | |
368 | { | |
369 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
370 | chain = TYPE_CHAIN (chain); | |
371 | } | |
372 | ||
c906108c SS |
373 | return ntype; |
374 | } | |
375 | ||
376 | /* Given a type TYPE, return a type of pointers to that type. | |
377 | May need to construct such a type if this is the first use. */ | |
378 | ||
379 | struct type * | |
fba45db2 | 380 | lookup_pointer_type (struct type *type) |
c906108c | 381 | { |
c5aa993b | 382 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
383 | } |
384 | ||
7ba81444 MS |
385 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, |
386 | points to a pointer to memory where the reference type should be | |
387 | stored. If *TYPEPTR is zero, update it to point to the reference | |
3b224330 AV |
388 | type we return. We allocate new memory if needed. REFCODE denotes |
389 | the kind of reference type to lookup (lvalue or rvalue reference). */ | |
c906108c SS |
390 | |
391 | struct type * | |
3b224330 AV |
392 | make_reference_type (struct type *type, struct type **typeptr, |
393 | enum type_code refcode) | |
c906108c | 394 | { |
52f0bd74 | 395 | struct type *ntype; /* New type */ |
3b224330 | 396 | struct type **reftype; |
1e98b326 | 397 | struct type *chain; |
c906108c | 398 | |
3b224330 AV |
399 | gdb_assert (refcode == TYPE_CODE_REF || refcode == TYPE_CODE_RVALUE_REF); |
400 | ||
401 | ntype = (refcode == TYPE_CODE_REF ? TYPE_REFERENCE_TYPE (type) | |
402 | : TYPE_RVALUE_REFERENCE_TYPE (type)); | |
c906108c | 403 | |
c5aa993b | 404 | if (ntype) |
c906108c | 405 | { |
c5aa993b | 406 | if (typeptr == 0) |
7ba81444 MS |
407 | return ntype; /* Don't care about alloc, |
408 | and have new type. */ | |
c906108c | 409 | else if (*typeptr == 0) |
c5aa993b | 410 | { |
7ba81444 | 411 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 412 | return ntype; |
c5aa993b | 413 | } |
c906108c SS |
414 | } |
415 | ||
416 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
417 | { | |
e9bb382b | 418 | ntype = alloc_type_copy (type); |
c906108c SS |
419 | if (typeptr) |
420 | *typeptr = ntype; | |
421 | } | |
7ba81444 | 422 | else /* We have storage, but need to reset it. */ |
c906108c SS |
423 | { |
424 | ntype = *typeptr; | |
1e98b326 | 425 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 426 | smash_type (ntype); |
1e98b326 | 427 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
428 | } |
429 | ||
430 | TYPE_TARGET_TYPE (ntype) = type; | |
3b224330 AV |
431 | reftype = (refcode == TYPE_CODE_REF ? &TYPE_REFERENCE_TYPE (type) |
432 | : &TYPE_RVALUE_REFERENCE_TYPE (type)); | |
433 | ||
434 | *reftype = ntype; | |
c906108c | 435 | |
7ba81444 MS |
436 | /* FIXME! Assume the machine has only one representation for |
437 | references, and that it matches the (only) representation for | |
438 | pointers! */ | |
c906108c | 439 | |
50810684 UW |
440 | TYPE_LENGTH (ntype) = |
441 | gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
3b224330 | 442 | TYPE_CODE (ntype) = refcode; |
c5aa993b | 443 | |
3b224330 | 444 | *reftype = ntype; |
c906108c | 445 | |
1e98b326 JB |
446 | /* Update the length of all the other variants of this type. */ |
447 | chain = TYPE_CHAIN (ntype); | |
448 | while (chain != ntype) | |
449 | { | |
450 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
451 | chain = TYPE_CHAIN (chain); | |
452 | } | |
453 | ||
c906108c SS |
454 | return ntype; |
455 | } | |
456 | ||
7ba81444 MS |
457 | /* Same as above, but caller doesn't care about memory allocation |
458 | details. */ | |
c906108c SS |
459 | |
460 | struct type * | |
3b224330 AV |
461 | lookup_reference_type (struct type *type, enum type_code refcode) |
462 | { | |
463 | return make_reference_type (type, (struct type **) 0, refcode); | |
464 | } | |
465 | ||
466 | /* Lookup the lvalue reference type for the type TYPE. */ | |
467 | ||
468 | struct type * | |
469 | lookup_lvalue_reference_type (struct type *type) | |
470 | { | |
471 | return lookup_reference_type (type, TYPE_CODE_REF); | |
472 | } | |
473 | ||
474 | /* Lookup the rvalue reference type for the type TYPE. */ | |
475 | ||
476 | struct type * | |
477 | lookup_rvalue_reference_type (struct type *type) | |
c906108c | 478 | { |
3b224330 | 479 | return lookup_reference_type (type, TYPE_CODE_RVALUE_REF); |
c906108c SS |
480 | } |
481 | ||
7ba81444 MS |
482 | /* Lookup a function type that returns type TYPE. TYPEPTR, if |
483 | nonzero, points to a pointer to memory where the function type | |
484 | should be stored. If *TYPEPTR is zero, update it to point to the | |
0c8b41f1 | 485 | function type we return. We allocate new memory if needed. */ |
c906108c SS |
486 | |
487 | struct type * | |
0c8b41f1 | 488 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 489 | { |
52f0bd74 | 490 | struct type *ntype; /* New type */ |
c906108c SS |
491 | |
492 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
493 | { | |
e9bb382b | 494 | ntype = alloc_type_copy (type); |
c906108c SS |
495 | if (typeptr) |
496 | *typeptr = ntype; | |
497 | } | |
7ba81444 | 498 | else /* We have storage, but need to reset it. */ |
c906108c SS |
499 | { |
500 | ntype = *typeptr; | |
2fdde8f8 | 501 | smash_type (ntype); |
c906108c SS |
502 | } |
503 | ||
504 | TYPE_TARGET_TYPE (ntype) = type; | |
505 | ||
506 | TYPE_LENGTH (ntype) = 1; | |
507 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
c5aa993b | 508 | |
b6cdc2c1 JK |
509 | INIT_FUNC_SPECIFIC (ntype); |
510 | ||
c906108c SS |
511 | return ntype; |
512 | } | |
513 | ||
c906108c SS |
514 | /* Given a type TYPE, return a type of functions that return that type. |
515 | May need to construct such a type if this is the first use. */ | |
516 | ||
517 | struct type * | |
fba45db2 | 518 | lookup_function_type (struct type *type) |
c906108c | 519 | { |
0c8b41f1 | 520 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
521 | } |
522 | ||
71918a86 | 523 | /* Given a type TYPE and argument types, return the appropriate |
a6fb9c08 TT |
524 | function type. If the final type in PARAM_TYPES is NULL, make a |
525 | varargs function. */ | |
71918a86 TT |
526 | |
527 | struct type * | |
528 | lookup_function_type_with_arguments (struct type *type, | |
529 | int nparams, | |
530 | struct type **param_types) | |
531 | { | |
532 | struct type *fn = make_function_type (type, (struct type **) 0); | |
533 | int i; | |
534 | ||
e314d629 | 535 | if (nparams > 0) |
a6fb9c08 | 536 | { |
e314d629 TT |
537 | if (param_types[nparams - 1] == NULL) |
538 | { | |
539 | --nparams; | |
540 | TYPE_VARARGS (fn) = 1; | |
541 | } | |
542 | else if (TYPE_CODE (check_typedef (param_types[nparams - 1])) | |
543 | == TYPE_CODE_VOID) | |
544 | { | |
545 | --nparams; | |
546 | /* Caller should have ensured this. */ | |
547 | gdb_assert (nparams == 0); | |
548 | TYPE_PROTOTYPED (fn) = 1; | |
549 | } | |
54990598 PA |
550 | else |
551 | TYPE_PROTOTYPED (fn) = 1; | |
a6fb9c08 TT |
552 | } |
553 | ||
71918a86 | 554 | TYPE_NFIELDS (fn) = nparams; |
224c3ddb SM |
555 | TYPE_FIELDS (fn) |
556 | = (struct field *) TYPE_ZALLOC (fn, nparams * sizeof (struct field)); | |
71918a86 TT |
557 | for (i = 0; i < nparams; ++i) |
558 | TYPE_FIELD_TYPE (fn, i) = param_types[i]; | |
559 | ||
560 | return fn; | |
561 | } | |
562 | ||
47663de5 MS |
563 | /* Identify address space identifier by name -- |
564 | return the integer flag defined in gdbtypes.h. */ | |
5212577a DE |
565 | |
566 | int | |
50810684 | 567 | address_space_name_to_int (struct gdbarch *gdbarch, char *space_identifier) |
47663de5 | 568 | { |
8b2dbe47 | 569 | int type_flags; |
d8734c88 | 570 | |
7ba81444 | 571 | /* Check for known address space delimiters. */ |
47663de5 | 572 | if (!strcmp (space_identifier, "code")) |
876cecd0 | 573 | return TYPE_INSTANCE_FLAG_CODE_SPACE; |
47663de5 | 574 | else if (!strcmp (space_identifier, "data")) |
876cecd0 | 575 | return TYPE_INSTANCE_FLAG_DATA_SPACE; |
5f11f355 AC |
576 | else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
577 | && gdbarch_address_class_name_to_type_flags (gdbarch, | |
578 | space_identifier, | |
579 | &type_flags)) | |
8b2dbe47 | 580 | return type_flags; |
47663de5 | 581 | else |
8a3fe4f8 | 582 | error (_("Unknown address space specifier: \"%s\""), space_identifier); |
47663de5 MS |
583 | } |
584 | ||
585 | /* Identify address space identifier by integer flag as defined in | |
7ba81444 | 586 | gdbtypes.h -- return the string version of the adress space name. */ |
47663de5 | 587 | |
321432c0 | 588 | const char * |
50810684 | 589 | address_space_int_to_name (struct gdbarch *gdbarch, int space_flag) |
47663de5 | 590 | { |
876cecd0 | 591 | if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE) |
47663de5 | 592 | return "code"; |
876cecd0 | 593 | else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE) |
47663de5 | 594 | return "data"; |
876cecd0 | 595 | else if ((space_flag & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) |
5f11f355 AC |
596 | && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
597 | return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); | |
47663de5 MS |
598 | else |
599 | return NULL; | |
600 | } | |
601 | ||
2fdde8f8 | 602 | /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
ad766c0a JB |
603 | |
604 | If STORAGE is non-NULL, create the new type instance there. | |
605 | STORAGE must be in the same obstack as TYPE. */ | |
47663de5 | 606 | |
b9362cc7 | 607 | static struct type * |
2fdde8f8 DJ |
608 | make_qualified_type (struct type *type, int new_flags, |
609 | struct type *storage) | |
47663de5 MS |
610 | { |
611 | struct type *ntype; | |
612 | ||
613 | ntype = type; | |
5f61c20e JK |
614 | do |
615 | { | |
616 | if (TYPE_INSTANCE_FLAGS (ntype) == new_flags) | |
617 | return ntype; | |
618 | ntype = TYPE_CHAIN (ntype); | |
619 | } | |
620 | while (ntype != type); | |
47663de5 | 621 | |
2fdde8f8 DJ |
622 | /* Create a new type instance. */ |
623 | if (storage == NULL) | |
624 | ntype = alloc_type_instance (type); | |
625 | else | |
626 | { | |
7ba81444 MS |
627 | /* If STORAGE was provided, it had better be in the same objfile |
628 | as TYPE. Otherwise, we can't link it into TYPE's cv chain: | |
629 | if one objfile is freed and the other kept, we'd have | |
630 | dangling pointers. */ | |
ad766c0a JB |
631 | gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage)); |
632 | ||
2fdde8f8 DJ |
633 | ntype = storage; |
634 | TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); | |
635 | TYPE_CHAIN (ntype) = ntype; | |
636 | } | |
47663de5 MS |
637 | |
638 | /* Pointers or references to the original type are not relevant to | |
2fdde8f8 | 639 | the new type. */ |
47663de5 MS |
640 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
641 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
47663de5 | 642 | |
2fdde8f8 DJ |
643 | /* Chain the new qualified type to the old type. */ |
644 | TYPE_CHAIN (ntype) = TYPE_CHAIN (type); | |
645 | TYPE_CHAIN (type) = ntype; | |
646 | ||
647 | /* Now set the instance flags and return the new type. */ | |
648 | TYPE_INSTANCE_FLAGS (ntype) = new_flags; | |
47663de5 | 649 | |
ab5d3da6 KB |
650 | /* Set length of new type to that of the original type. */ |
651 | TYPE_LENGTH (ntype) = TYPE_LENGTH (type); | |
652 | ||
47663de5 MS |
653 | return ntype; |
654 | } | |
655 | ||
2fdde8f8 DJ |
656 | /* Make an address-space-delimited variant of a type -- a type that |
657 | is identical to the one supplied except that it has an address | |
658 | space attribute attached to it (such as "code" or "data"). | |
659 | ||
7ba81444 MS |
660 | The space attributes "code" and "data" are for Harvard |
661 | architectures. The address space attributes are for architectures | |
662 | which have alternately sized pointers or pointers with alternate | |
663 | representations. */ | |
2fdde8f8 DJ |
664 | |
665 | struct type * | |
666 | make_type_with_address_space (struct type *type, int space_flag) | |
667 | { | |
2fdde8f8 | 668 | int new_flags = ((TYPE_INSTANCE_FLAGS (type) |
876cecd0 TT |
669 | & ~(TYPE_INSTANCE_FLAG_CODE_SPACE |
670 | | TYPE_INSTANCE_FLAG_DATA_SPACE | |
671 | | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)) | |
2fdde8f8 DJ |
672 | | space_flag); |
673 | ||
674 | return make_qualified_type (type, new_flags, NULL); | |
675 | } | |
c906108c SS |
676 | |
677 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
678 | one supplied except that it may have const or volatile attributes | |
679 | CNST is a flag for setting the const attribute | |
680 | VOLTL is a flag for setting the volatile attribute | |
681 | TYPE is the base type whose variant we are creating. | |
c906108c | 682 | |
ad766c0a JB |
683 | If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to |
684 | storage to hold the new qualified type; *TYPEPTR and TYPE must be | |
685 | in the same objfile. Otherwise, allocate fresh memory for the new | |
686 | type whereever TYPE lives. If TYPEPTR is non-zero, set it to the | |
687 | new type we construct. */ | |
5212577a | 688 | |
c906108c | 689 | struct type * |
7ba81444 MS |
690 | make_cv_type (int cnst, int voltl, |
691 | struct type *type, | |
692 | struct type **typeptr) | |
c906108c | 693 | { |
52f0bd74 | 694 | struct type *ntype; /* New type */ |
c906108c | 695 | |
2fdde8f8 | 696 | int new_flags = (TYPE_INSTANCE_FLAGS (type) |
308d96ed MS |
697 | & ~(TYPE_INSTANCE_FLAG_CONST |
698 | | TYPE_INSTANCE_FLAG_VOLATILE)); | |
c906108c | 699 | |
c906108c | 700 | if (cnst) |
876cecd0 | 701 | new_flags |= TYPE_INSTANCE_FLAG_CONST; |
c906108c SS |
702 | |
703 | if (voltl) | |
876cecd0 | 704 | new_flags |= TYPE_INSTANCE_FLAG_VOLATILE; |
a02fd225 | 705 | |
2fdde8f8 | 706 | if (typeptr && *typeptr != NULL) |
a02fd225 | 707 | { |
ad766c0a JB |
708 | /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
709 | a C-V variant chain that threads across objfiles: if one | |
710 | objfile gets freed, then the other has a broken C-V chain. | |
711 | ||
712 | This code used to try to copy over the main type from TYPE to | |
713 | *TYPEPTR if they were in different objfiles, but that's | |
714 | wrong, too: TYPE may have a field list or member function | |
715 | lists, which refer to types of their own, etc. etc. The | |
716 | whole shebang would need to be copied over recursively; you | |
717 | can't have inter-objfile pointers. The only thing to do is | |
718 | to leave stub types as stub types, and look them up afresh by | |
719 | name each time you encounter them. */ | |
720 | gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type)); | |
2fdde8f8 DJ |
721 | } |
722 | ||
7ba81444 MS |
723 | ntype = make_qualified_type (type, new_flags, |
724 | typeptr ? *typeptr : NULL); | |
c906108c | 725 | |
2fdde8f8 DJ |
726 | if (typeptr != NULL) |
727 | *typeptr = ntype; | |
a02fd225 | 728 | |
2fdde8f8 | 729 | return ntype; |
a02fd225 | 730 | } |
c906108c | 731 | |
06d66ee9 TT |
732 | /* Make a 'restrict'-qualified version of TYPE. */ |
733 | ||
734 | struct type * | |
735 | make_restrict_type (struct type *type) | |
736 | { | |
737 | return make_qualified_type (type, | |
738 | (TYPE_INSTANCE_FLAGS (type) | |
739 | | TYPE_INSTANCE_FLAG_RESTRICT), | |
740 | NULL); | |
741 | } | |
742 | ||
f1660027 TT |
743 | /* Make a type without const, volatile, or restrict. */ |
744 | ||
745 | struct type * | |
746 | make_unqualified_type (struct type *type) | |
747 | { | |
748 | return make_qualified_type (type, | |
749 | (TYPE_INSTANCE_FLAGS (type) | |
750 | & ~(TYPE_INSTANCE_FLAG_CONST | |
751 | | TYPE_INSTANCE_FLAG_VOLATILE | |
752 | | TYPE_INSTANCE_FLAG_RESTRICT)), | |
753 | NULL); | |
754 | } | |
755 | ||
a2c2acaf MW |
756 | /* Make a '_Atomic'-qualified version of TYPE. */ |
757 | ||
758 | struct type * | |
759 | make_atomic_type (struct type *type) | |
760 | { | |
761 | return make_qualified_type (type, | |
762 | (TYPE_INSTANCE_FLAGS (type) | |
763 | | TYPE_INSTANCE_FLAG_ATOMIC), | |
764 | NULL); | |
765 | } | |
766 | ||
2fdde8f8 DJ |
767 | /* Replace the contents of ntype with the type *type. This changes the |
768 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
769 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 770 | |
cda6c68a JB |
771 | In order to build recursive types, it's inevitable that we'll need |
772 | to update types in place --- but this sort of indiscriminate | |
773 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
774 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
775 | clear if more steps are needed. */ | |
5212577a | 776 | |
dd6bda65 DJ |
777 | void |
778 | replace_type (struct type *ntype, struct type *type) | |
779 | { | |
ab5d3da6 | 780 | struct type *chain; |
dd6bda65 | 781 | |
ad766c0a JB |
782 | /* These two types had better be in the same objfile. Otherwise, |
783 | the assignment of one type's main type structure to the other | |
784 | will produce a type with references to objects (names; field | |
785 | lists; etc.) allocated on an objfile other than its own. */ | |
e46dd0f4 | 786 | gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (type)); |
ad766c0a | 787 | |
2fdde8f8 | 788 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 789 | |
7ba81444 MS |
790 | /* The type length is not a part of the main type. Update it for |
791 | each type on the variant chain. */ | |
ab5d3da6 | 792 | chain = ntype; |
5f61c20e JK |
793 | do |
794 | { | |
795 | /* Assert that this element of the chain has no address-class bits | |
796 | set in its flags. Such type variants might have type lengths | |
797 | which are supposed to be different from the non-address-class | |
798 | variants. This assertion shouldn't ever be triggered because | |
799 | symbol readers which do construct address-class variants don't | |
800 | call replace_type(). */ | |
801 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
802 | ||
803 | TYPE_LENGTH (chain) = TYPE_LENGTH (type); | |
804 | chain = TYPE_CHAIN (chain); | |
805 | } | |
806 | while (ntype != chain); | |
ab5d3da6 | 807 | |
2fdde8f8 DJ |
808 | /* Assert that the two types have equivalent instance qualifiers. |
809 | This should be true for at least all of our debug readers. */ | |
810 | gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type)); | |
dd6bda65 DJ |
811 | } |
812 | ||
c906108c SS |
813 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
814 | May need to construct such a type if this is the first use. | |
815 | The TYPE is the type of the member. The DOMAIN is the type | |
816 | of the aggregate that the member belongs to. */ | |
817 | ||
818 | struct type * | |
0d5de010 | 819 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 820 | { |
52f0bd74 | 821 | struct type *mtype; |
c906108c | 822 | |
e9bb382b | 823 | mtype = alloc_type_copy (type); |
0d5de010 | 824 | smash_to_memberptr_type (mtype, domain, type); |
c16abbde | 825 | return mtype; |
c906108c SS |
826 | } |
827 | ||
0d5de010 DJ |
828 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
829 | ||
830 | struct type * | |
831 | lookup_methodptr_type (struct type *to_type) | |
832 | { | |
833 | struct type *mtype; | |
834 | ||
e9bb382b | 835 | mtype = alloc_type_copy (to_type); |
0b92b5bb | 836 | smash_to_methodptr_type (mtype, to_type); |
0d5de010 DJ |
837 | return mtype; |
838 | } | |
839 | ||
7ba81444 MS |
840 | /* Allocate a stub method whose return type is TYPE. This apparently |
841 | happens for speed of symbol reading, since parsing out the | |
842 | arguments to the method is cpu-intensive, the way we are doing it. | |
843 | So, we will fill in arguments later. This always returns a fresh | |
844 | type. */ | |
c906108c SS |
845 | |
846 | struct type * | |
fba45db2 | 847 | allocate_stub_method (struct type *type) |
c906108c SS |
848 | { |
849 | struct type *mtype; | |
850 | ||
e9bb382b UW |
851 | mtype = alloc_type_copy (type); |
852 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; | |
853 | TYPE_LENGTH (mtype) = 1; | |
854 | TYPE_STUB (mtype) = 1; | |
c906108c | 855 | TYPE_TARGET_TYPE (mtype) = type; |
4bfb94b8 | 856 | /* TYPE_SELF_TYPE (mtype) = unknown yet */ |
c16abbde | 857 | return mtype; |
c906108c SS |
858 | } |
859 | ||
729efb13 SA |
860 | /* Create a range type with a dynamic range from LOW_BOUND to |
861 | HIGH_BOUND, inclusive. See create_range_type for further details. */ | |
c906108c SS |
862 | |
863 | struct type * | |
729efb13 SA |
864 | create_range_type (struct type *result_type, struct type *index_type, |
865 | const struct dynamic_prop *low_bound, | |
866 | const struct dynamic_prop *high_bound) | |
c906108c SS |
867 | { |
868 | if (result_type == NULL) | |
e9bb382b | 869 | result_type = alloc_type_copy (index_type); |
c906108c SS |
870 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; |
871 | TYPE_TARGET_TYPE (result_type) = index_type; | |
74a9bb82 | 872 | if (TYPE_STUB (index_type)) |
876cecd0 | 873 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c SS |
874 | else |
875 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
729efb13 | 876 | |
43bbcdc2 PH |
877 | TYPE_RANGE_DATA (result_type) = (struct range_bounds *) |
878 | TYPE_ZALLOC (result_type, sizeof (struct range_bounds)); | |
729efb13 SA |
879 | TYPE_RANGE_DATA (result_type)->low = *low_bound; |
880 | TYPE_RANGE_DATA (result_type)->high = *high_bound; | |
c906108c | 881 | |
729efb13 | 882 | if (low_bound->kind == PROP_CONST && low_bound->data.const_val >= 0) |
876cecd0 | 883 | TYPE_UNSIGNED (result_type) = 1; |
c906108c | 884 | |
45e44d27 JB |
885 | /* Ada allows the declaration of range types whose upper bound is |
886 | less than the lower bound, so checking the lower bound is not | |
887 | enough. Make sure we do not mark a range type whose upper bound | |
888 | is negative as unsigned. */ | |
889 | if (high_bound->kind == PROP_CONST && high_bound->data.const_val < 0) | |
890 | TYPE_UNSIGNED (result_type) = 0; | |
891 | ||
262452ec | 892 | return result_type; |
c906108c SS |
893 | } |
894 | ||
729efb13 SA |
895 | /* Create a range type using either a blank type supplied in |
896 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
897 | INDEX_TYPE. | |
898 | ||
899 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND | |
900 | to HIGH_BOUND, inclusive. | |
901 | ||
902 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
903 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
904 | ||
905 | struct type * | |
906 | create_static_range_type (struct type *result_type, struct type *index_type, | |
907 | LONGEST low_bound, LONGEST high_bound) | |
908 | { | |
909 | struct dynamic_prop low, high; | |
910 | ||
911 | low.kind = PROP_CONST; | |
912 | low.data.const_val = low_bound; | |
913 | ||
914 | high.kind = PROP_CONST; | |
915 | high.data.const_val = high_bound; | |
916 | ||
917 | result_type = create_range_type (result_type, index_type, &low, &high); | |
918 | ||
919 | return result_type; | |
920 | } | |
921 | ||
80180f79 SA |
922 | /* Predicate tests whether BOUNDS are static. Returns 1 if all bounds values |
923 | are static, otherwise returns 0. */ | |
924 | ||
925 | static int | |
926 | has_static_range (const struct range_bounds *bounds) | |
927 | { | |
928 | return (bounds->low.kind == PROP_CONST | |
929 | && bounds->high.kind == PROP_CONST); | |
930 | } | |
931 | ||
932 | ||
7ba81444 MS |
933 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
934 | TYPE. Return 1 if type is a range type, 0 if it is discrete (and | |
935 | bounds will fit in LONGEST), or -1 otherwise. */ | |
c906108c SS |
936 | |
937 | int | |
fba45db2 | 938 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c | 939 | { |
f168693b | 940 | type = check_typedef (type); |
c906108c SS |
941 | switch (TYPE_CODE (type)) |
942 | { | |
943 | case TYPE_CODE_RANGE: | |
944 | *lowp = TYPE_LOW_BOUND (type); | |
945 | *highp = TYPE_HIGH_BOUND (type); | |
946 | return 1; | |
947 | case TYPE_CODE_ENUM: | |
948 | if (TYPE_NFIELDS (type) > 0) | |
949 | { | |
950 | /* The enums may not be sorted by value, so search all | |
0963b4bd | 951 | entries. */ |
c906108c SS |
952 | int i; |
953 | ||
14e75d8e | 954 | *lowp = *highp = TYPE_FIELD_ENUMVAL (type, 0); |
c906108c SS |
955 | for (i = 0; i < TYPE_NFIELDS (type); i++) |
956 | { | |
14e75d8e JK |
957 | if (TYPE_FIELD_ENUMVAL (type, i) < *lowp) |
958 | *lowp = TYPE_FIELD_ENUMVAL (type, i); | |
959 | if (TYPE_FIELD_ENUMVAL (type, i) > *highp) | |
960 | *highp = TYPE_FIELD_ENUMVAL (type, i); | |
c906108c SS |
961 | } |
962 | ||
7ba81444 | 963 | /* Set unsigned indicator if warranted. */ |
c5aa993b | 964 | if (*lowp >= 0) |
c906108c | 965 | { |
876cecd0 | 966 | TYPE_UNSIGNED (type) = 1; |
c906108c SS |
967 | } |
968 | } | |
969 | else | |
970 | { | |
971 | *lowp = 0; | |
972 | *highp = -1; | |
973 | } | |
974 | return 0; | |
975 | case TYPE_CODE_BOOL: | |
976 | *lowp = 0; | |
977 | *highp = 1; | |
978 | return 0; | |
979 | case TYPE_CODE_INT: | |
c5aa993b | 980 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
981 | return -1; |
982 | if (!TYPE_UNSIGNED (type)) | |
983 | { | |
c5aa993b | 984 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
985 | *highp = -*lowp - 1; |
986 | return 0; | |
987 | } | |
7ba81444 | 988 | /* ... fall through for unsigned ints ... */ |
c906108c SS |
989 | case TYPE_CODE_CHAR: |
990 | *lowp = 0; | |
991 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 | 992 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
7ba81444 | 993 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
c906108c SS |
994 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
995 | *highp = (*highp - 1) | *highp; | |
996 | return 0; | |
997 | default: | |
998 | return -1; | |
999 | } | |
1000 | } | |
1001 | ||
dbc98a8b KW |
1002 | /* Assuming TYPE is a simple, non-empty array type, compute its upper |
1003 | and lower bound. Save the low bound into LOW_BOUND if not NULL. | |
1004 | Save the high bound into HIGH_BOUND if not NULL. | |
1005 | ||
0963b4bd | 1006 | Return 1 if the operation was successful. Return zero otherwise, |
dbc98a8b KW |
1007 | in which case the values of LOW_BOUND and HIGH_BOUNDS are unmodified. |
1008 | ||
1009 | We now simply use get_discrete_bounds call to get the values | |
1010 | of the low and high bounds. | |
1011 | get_discrete_bounds can return three values: | |
1012 | 1, meaning that index is a range, | |
1013 | 0, meaning that index is a discrete type, | |
1014 | or -1 for failure. */ | |
1015 | ||
1016 | int | |
1017 | get_array_bounds (struct type *type, LONGEST *low_bound, LONGEST *high_bound) | |
1018 | { | |
1019 | struct type *index = TYPE_INDEX_TYPE (type); | |
1020 | LONGEST low = 0; | |
1021 | LONGEST high = 0; | |
1022 | int res; | |
1023 | ||
1024 | if (index == NULL) | |
1025 | return 0; | |
1026 | ||
1027 | res = get_discrete_bounds (index, &low, &high); | |
1028 | if (res == -1) | |
1029 | return 0; | |
1030 | ||
1031 | /* Check if the array bounds are undefined. */ | |
1032 | if (res == 1 | |
1033 | && ((low_bound && TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED (type)) | |
1034 | || (high_bound && TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type)))) | |
1035 | return 0; | |
1036 | ||
1037 | if (low_bound) | |
1038 | *low_bound = low; | |
1039 | ||
1040 | if (high_bound) | |
1041 | *high_bound = high; | |
1042 | ||
1043 | return 1; | |
1044 | } | |
1045 | ||
aa715135 JG |
1046 | /* Assuming that TYPE is a discrete type and VAL is a valid integer |
1047 | representation of a value of this type, save the corresponding | |
1048 | position number in POS. | |
1049 | ||
1050 | Its differs from VAL only in the case of enumeration types. In | |
1051 | this case, the position number of the value of the first listed | |
1052 | enumeration literal is zero; the position number of the value of | |
1053 | each subsequent enumeration literal is one more than that of its | |
1054 | predecessor in the list. | |
1055 | ||
1056 | Return 1 if the operation was successful. Return zero otherwise, | |
1057 | in which case the value of POS is unmodified. | |
1058 | */ | |
1059 | ||
1060 | int | |
1061 | discrete_position (struct type *type, LONGEST val, LONGEST *pos) | |
1062 | { | |
1063 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) | |
1064 | { | |
1065 | int i; | |
1066 | ||
1067 | for (i = 0; i < TYPE_NFIELDS (type); i += 1) | |
1068 | { | |
1069 | if (val == TYPE_FIELD_ENUMVAL (type, i)) | |
1070 | { | |
1071 | *pos = i; | |
1072 | return 1; | |
1073 | } | |
1074 | } | |
1075 | /* Invalid enumeration value. */ | |
1076 | return 0; | |
1077 | } | |
1078 | else | |
1079 | { | |
1080 | *pos = val; | |
1081 | return 1; | |
1082 | } | |
1083 | } | |
1084 | ||
7ba81444 MS |
1085 | /* Create an array type using either a blank type supplied in |
1086 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
1087 | RANGE_TYPE. | |
c906108c SS |
1088 | |
1089 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
1090 | RANGE_TYPE. | |
1091 | ||
dc53a7ad JB |
1092 | If BIT_STRIDE is not zero, build a packed array type whose element |
1093 | size is BIT_STRIDE. Otherwise, ignore this parameter. | |
1094 | ||
7ba81444 MS |
1095 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1096 | sure it is TYPE_CODE_UNDEF before we bash it into an array | |
1097 | type? */ | |
c906108c SS |
1098 | |
1099 | struct type * | |
dc53a7ad JB |
1100 | create_array_type_with_stride (struct type *result_type, |
1101 | struct type *element_type, | |
1102 | struct type *range_type, | |
1103 | unsigned int bit_stride) | |
c906108c | 1104 | { |
c906108c | 1105 | if (result_type == NULL) |
e9bb382b UW |
1106 | result_type = alloc_type_copy (range_type); |
1107 | ||
c906108c SS |
1108 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
1109 | TYPE_TARGET_TYPE (result_type) = element_type; | |
3f2f83dd | 1110 | if (has_static_range (TYPE_RANGE_DATA (range_type)) |
b4a7fcab JB |
1111 | && (!type_not_associated (result_type) |
1112 | && !type_not_allocated (result_type))) | |
80180f79 SA |
1113 | { |
1114 | LONGEST low_bound, high_bound; | |
1115 | ||
1116 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
1117 | low_bound = high_bound = 0; | |
f168693b | 1118 | element_type = check_typedef (element_type); |
80180f79 SA |
1119 | /* Be careful when setting the array length. Ada arrays can be |
1120 | empty arrays with the high_bound being smaller than the low_bound. | |
1121 | In such cases, the array length should be zero. */ | |
1122 | if (high_bound < low_bound) | |
1123 | TYPE_LENGTH (result_type) = 0; | |
1124 | else if (bit_stride > 0) | |
1125 | TYPE_LENGTH (result_type) = | |
1126 | (bit_stride * (high_bound - low_bound + 1) + 7) / 8; | |
1127 | else | |
1128 | TYPE_LENGTH (result_type) = | |
1129 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
1130 | } | |
ab0d6e0d | 1131 | else |
80180f79 SA |
1132 | { |
1133 | /* This type is dynamic and its length needs to be computed | |
1134 | on demand. In the meantime, avoid leaving the TYPE_LENGTH | |
1135 | undefined by setting it to zero. Although we are not expected | |
1136 | to trust TYPE_LENGTH in this case, setting the size to zero | |
1137 | allows us to avoid allocating objects of random sizes in case | |
1138 | we accidently do. */ | |
1139 | TYPE_LENGTH (result_type) = 0; | |
1140 | } | |
1141 | ||
c906108c SS |
1142 | TYPE_NFIELDS (result_type) = 1; |
1143 | TYPE_FIELDS (result_type) = | |
1deafd4e | 1144 | (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); |
262452ec | 1145 | TYPE_INDEX_TYPE (result_type) = range_type; |
dc53a7ad JB |
1146 | if (bit_stride > 0) |
1147 | TYPE_FIELD_BITSIZE (result_type, 0) = bit_stride; | |
c906108c | 1148 | |
a9ff5f12 | 1149 | /* TYPE_TARGET_STUB will take care of zero length arrays. */ |
c906108c | 1150 | if (TYPE_LENGTH (result_type) == 0) |
876cecd0 | 1151 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c | 1152 | |
c16abbde | 1153 | return result_type; |
c906108c SS |
1154 | } |
1155 | ||
dc53a7ad JB |
1156 | /* Same as create_array_type_with_stride but with no bit_stride |
1157 | (BIT_STRIDE = 0), thus building an unpacked array. */ | |
1158 | ||
1159 | struct type * | |
1160 | create_array_type (struct type *result_type, | |
1161 | struct type *element_type, | |
1162 | struct type *range_type) | |
1163 | { | |
1164 | return create_array_type_with_stride (result_type, element_type, | |
1165 | range_type, 0); | |
1166 | } | |
1167 | ||
e3506a9f UW |
1168 | struct type * |
1169 | lookup_array_range_type (struct type *element_type, | |
63375b74 | 1170 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f | 1171 | { |
50810684 | 1172 | struct gdbarch *gdbarch = get_type_arch (element_type); |
e3506a9f UW |
1173 | struct type *index_type = builtin_type (gdbarch)->builtin_int; |
1174 | struct type *range_type | |
0c9c3474 | 1175 | = create_static_range_type (NULL, index_type, low_bound, high_bound); |
d8734c88 | 1176 | |
e3506a9f UW |
1177 | return create_array_type (NULL, element_type, range_type); |
1178 | } | |
1179 | ||
7ba81444 MS |
1180 | /* Create a string type using either a blank type supplied in |
1181 | RESULT_TYPE, or creating a new type. String types are similar | |
1182 | enough to array of char types that we can use create_array_type to | |
1183 | build the basic type and then bash it into a string type. | |
c906108c SS |
1184 | |
1185 | For fixed length strings, the range type contains 0 as the lower | |
1186 | bound and the length of the string minus one as the upper bound. | |
1187 | ||
7ba81444 MS |
1188 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1189 | sure it is TYPE_CODE_UNDEF before we bash it into a string | |
1190 | type? */ | |
c906108c SS |
1191 | |
1192 | struct type * | |
3b7538c0 UW |
1193 | create_string_type (struct type *result_type, |
1194 | struct type *string_char_type, | |
7ba81444 | 1195 | struct type *range_type) |
c906108c SS |
1196 | { |
1197 | result_type = create_array_type (result_type, | |
f290d38e | 1198 | string_char_type, |
c906108c SS |
1199 | range_type); |
1200 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
c16abbde | 1201 | return result_type; |
c906108c SS |
1202 | } |
1203 | ||
e3506a9f UW |
1204 | struct type * |
1205 | lookup_string_range_type (struct type *string_char_type, | |
63375b74 | 1206 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f UW |
1207 | { |
1208 | struct type *result_type; | |
d8734c88 | 1209 | |
e3506a9f UW |
1210 | result_type = lookup_array_range_type (string_char_type, |
1211 | low_bound, high_bound); | |
1212 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
1213 | return result_type; | |
1214 | } | |
1215 | ||
c906108c | 1216 | struct type * |
fba45db2 | 1217 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c | 1218 | { |
c906108c | 1219 | if (result_type == NULL) |
e9bb382b UW |
1220 | result_type = alloc_type_copy (domain_type); |
1221 | ||
c906108c SS |
1222 | TYPE_CODE (result_type) = TYPE_CODE_SET; |
1223 | TYPE_NFIELDS (result_type) = 1; | |
224c3ddb SM |
1224 | TYPE_FIELDS (result_type) |
1225 | = (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); | |
c906108c | 1226 | |
74a9bb82 | 1227 | if (!TYPE_STUB (domain_type)) |
c906108c | 1228 | { |
f9780d5b | 1229 | LONGEST low_bound, high_bound, bit_length; |
d8734c88 | 1230 | |
c906108c SS |
1231 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
1232 | low_bound = high_bound = 0; | |
1233 | bit_length = high_bound - low_bound + 1; | |
1234 | TYPE_LENGTH (result_type) | |
1235 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
f9780d5b | 1236 | if (low_bound >= 0) |
876cecd0 | 1237 | TYPE_UNSIGNED (result_type) = 1; |
c906108c SS |
1238 | } |
1239 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
1240 | ||
c16abbde | 1241 | return result_type; |
c906108c SS |
1242 | } |
1243 | ||
ea37ba09 DJ |
1244 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
1245 | and any array types nested inside it. */ | |
1246 | ||
1247 | void | |
1248 | make_vector_type (struct type *array_type) | |
1249 | { | |
1250 | struct type *inner_array, *elt_type; | |
1251 | int flags; | |
1252 | ||
1253 | /* Find the innermost array type, in case the array is | |
1254 | multi-dimensional. */ | |
1255 | inner_array = array_type; | |
1256 | while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY) | |
1257 | inner_array = TYPE_TARGET_TYPE (inner_array); | |
1258 | ||
1259 | elt_type = TYPE_TARGET_TYPE (inner_array); | |
1260 | if (TYPE_CODE (elt_type) == TYPE_CODE_INT) | |
1261 | { | |
2844d6b5 | 1262 | flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_INSTANCE_FLAG_NOTTEXT; |
ea37ba09 DJ |
1263 | elt_type = make_qualified_type (elt_type, flags, NULL); |
1264 | TYPE_TARGET_TYPE (inner_array) = elt_type; | |
1265 | } | |
1266 | ||
876cecd0 | 1267 | TYPE_VECTOR (array_type) = 1; |
ea37ba09 DJ |
1268 | } |
1269 | ||
794ac428 | 1270 | struct type * |
ac3aafc7 EZ |
1271 | init_vector_type (struct type *elt_type, int n) |
1272 | { | |
1273 | struct type *array_type; | |
d8734c88 | 1274 | |
e3506a9f | 1275 | array_type = lookup_array_range_type (elt_type, 0, n - 1); |
ea37ba09 | 1276 | make_vector_type (array_type); |
ac3aafc7 EZ |
1277 | return array_type; |
1278 | } | |
1279 | ||
09e2d7c7 DE |
1280 | /* Internal routine called by TYPE_SELF_TYPE to return the type that TYPE |
1281 | belongs to. In c++ this is the class of "this", but TYPE_THIS_TYPE is too | |
1282 | confusing. "self" is a common enough replacement for "this". | |
1283 | TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or | |
1284 | TYPE_CODE_METHOD. */ | |
1285 | ||
1286 | struct type * | |
1287 | internal_type_self_type (struct type *type) | |
1288 | { | |
1289 | switch (TYPE_CODE (type)) | |
1290 | { | |
1291 | case TYPE_CODE_METHODPTR: | |
1292 | case TYPE_CODE_MEMBERPTR: | |
eaaf76ab DE |
1293 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) |
1294 | return NULL; | |
09e2d7c7 DE |
1295 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE); |
1296 | return TYPE_MAIN_TYPE (type)->type_specific.self_type; | |
1297 | case TYPE_CODE_METHOD: | |
eaaf76ab DE |
1298 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) |
1299 | return NULL; | |
09e2d7c7 DE |
1300 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC); |
1301 | return TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type; | |
1302 | default: | |
1303 | gdb_assert_not_reached ("bad type"); | |
1304 | } | |
1305 | } | |
1306 | ||
1307 | /* Set the type of the class that TYPE belongs to. | |
1308 | In c++ this is the class of "this". | |
1309 | TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or | |
1310 | TYPE_CODE_METHOD. */ | |
1311 | ||
1312 | void | |
1313 | set_type_self_type (struct type *type, struct type *self_type) | |
1314 | { | |
1315 | switch (TYPE_CODE (type)) | |
1316 | { | |
1317 | case TYPE_CODE_METHODPTR: | |
1318 | case TYPE_CODE_MEMBERPTR: | |
1319 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) | |
1320 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_SELF_TYPE; | |
1321 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE); | |
1322 | TYPE_MAIN_TYPE (type)->type_specific.self_type = self_type; | |
1323 | break; | |
1324 | case TYPE_CODE_METHOD: | |
1325 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) | |
1326 | INIT_FUNC_SPECIFIC (type); | |
1327 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC); | |
1328 | TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type = self_type; | |
1329 | break; | |
1330 | default: | |
1331 | gdb_assert_not_reached ("bad type"); | |
1332 | } | |
1333 | } | |
1334 | ||
1335 | /* Smash TYPE to be a type of pointers to members of SELF_TYPE with type | |
0d5de010 DJ |
1336 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a |
1337 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
1338 | TYPE doesn't include the offset (that's the value of the MEMBER | |
1339 | itself), but does include the structure type into which it points | |
1340 | (for some reason). | |
c906108c | 1341 | |
7ba81444 MS |
1342 | When "smashing" the type, we preserve the objfile that the old type |
1343 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1344 | allocated. */ |
1345 | ||
1346 | void | |
09e2d7c7 | 1347 | smash_to_memberptr_type (struct type *type, struct type *self_type, |
0d5de010 | 1348 | struct type *to_type) |
c906108c | 1349 | { |
2fdde8f8 | 1350 | smash_type (type); |
09e2d7c7 | 1351 | TYPE_CODE (type) = TYPE_CODE_MEMBERPTR; |
c906108c | 1352 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1353 | set_type_self_type (type, self_type); |
0d5de010 DJ |
1354 | /* Assume that a data member pointer is the same size as a normal |
1355 | pointer. */ | |
50810684 UW |
1356 | TYPE_LENGTH (type) |
1357 | = gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT; | |
c906108c SS |
1358 | } |
1359 | ||
0b92b5bb TT |
1360 | /* Smash TYPE to be a type of pointer to methods type TO_TYPE. |
1361 | ||
1362 | When "smashing" the type, we preserve the objfile that the old type | |
1363 | pointed to, since we aren't changing where the type is actually | |
1364 | allocated. */ | |
1365 | ||
1366 | void | |
1367 | smash_to_methodptr_type (struct type *type, struct type *to_type) | |
1368 | { | |
1369 | smash_type (type); | |
09e2d7c7 | 1370 | TYPE_CODE (type) = TYPE_CODE_METHODPTR; |
0b92b5bb | 1371 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1372 | set_type_self_type (type, TYPE_SELF_TYPE (to_type)); |
0b92b5bb | 1373 | TYPE_LENGTH (type) = cplus_method_ptr_size (to_type); |
0b92b5bb TT |
1374 | } |
1375 | ||
09e2d7c7 | 1376 | /* Smash TYPE to be a type of method of SELF_TYPE with type TO_TYPE. |
c906108c SS |
1377 | METHOD just means `function that gets an extra "this" argument'. |
1378 | ||
7ba81444 MS |
1379 | When "smashing" the type, we preserve the objfile that the old type |
1380 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1381 | allocated. */ |
1382 | ||
1383 | void | |
09e2d7c7 | 1384 | smash_to_method_type (struct type *type, struct type *self_type, |
ad2f7632 DJ |
1385 | struct type *to_type, struct field *args, |
1386 | int nargs, int varargs) | |
c906108c | 1387 | { |
2fdde8f8 | 1388 | smash_type (type); |
09e2d7c7 | 1389 | TYPE_CODE (type) = TYPE_CODE_METHOD; |
c906108c | 1390 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1391 | set_type_self_type (type, self_type); |
ad2f7632 DJ |
1392 | TYPE_FIELDS (type) = args; |
1393 | TYPE_NFIELDS (type) = nargs; | |
1394 | if (varargs) | |
876cecd0 | 1395 | TYPE_VARARGS (type) = 1; |
c906108c | 1396 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
c906108c SS |
1397 | } |
1398 | ||
1399 | /* Return a typename for a struct/union/enum type without "struct ", | |
1400 | "union ", or "enum ". If the type has a NULL name, return NULL. */ | |
1401 | ||
0d5cff50 | 1402 | const char * |
aa1ee363 | 1403 | type_name_no_tag (const struct type *type) |
c906108c SS |
1404 | { |
1405 | if (TYPE_TAG_NAME (type) != NULL) | |
1406 | return TYPE_TAG_NAME (type); | |
1407 | ||
7ba81444 MS |
1408 | /* Is there code which expects this to return the name if there is |
1409 | no tag name? My guess is that this is mainly used for C++ in | |
1410 | cases where the two will always be the same. */ | |
c906108c SS |
1411 | return TYPE_NAME (type); |
1412 | } | |
1413 | ||
d8228535 JK |
1414 | /* A wrapper of type_name_no_tag which calls error if the type is anonymous. |
1415 | Since GCC PR debug/47510 DWARF provides associated information to detect the | |
1416 | anonymous class linkage name from its typedef. | |
1417 | ||
1418 | Parameter TYPE should not yet have CHECK_TYPEDEF applied, this function will | |
1419 | apply it itself. */ | |
1420 | ||
1421 | const char * | |
1422 | type_name_no_tag_or_error (struct type *type) | |
1423 | { | |
1424 | struct type *saved_type = type; | |
1425 | const char *name; | |
1426 | struct objfile *objfile; | |
1427 | ||
f168693b | 1428 | type = check_typedef (type); |
d8228535 JK |
1429 | |
1430 | name = type_name_no_tag (type); | |
1431 | if (name != NULL) | |
1432 | return name; | |
1433 | ||
1434 | name = type_name_no_tag (saved_type); | |
1435 | objfile = TYPE_OBJFILE (saved_type); | |
1436 | error (_("Invalid anonymous type %s [in module %s], GCC PR debug/47510 bug?"), | |
4262abfb JK |
1437 | name ? name : "<anonymous>", |
1438 | objfile ? objfile_name (objfile) : "<arch>"); | |
d8228535 JK |
1439 | } |
1440 | ||
7ba81444 MS |
1441 | /* Lookup a typedef or primitive type named NAME, visible in lexical |
1442 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
1443 | suitably defined. */ | |
c906108c SS |
1444 | |
1445 | struct type * | |
e6c014f2 | 1446 | lookup_typename (const struct language_defn *language, |
ddd49eee | 1447 | struct gdbarch *gdbarch, const char *name, |
34eaf542 | 1448 | const struct block *block, int noerr) |
c906108c | 1449 | { |
52f0bd74 | 1450 | struct symbol *sym; |
c906108c | 1451 | |
1994afbf | 1452 | sym = lookup_symbol_in_language (name, block, VAR_DOMAIN, |
d12307c1 | 1453 | language->la_language, NULL).symbol; |
c51fe631 DE |
1454 | if (sym != NULL && SYMBOL_CLASS (sym) == LOC_TYPEDEF) |
1455 | return SYMBOL_TYPE (sym); | |
1456 | ||
c51fe631 DE |
1457 | if (noerr) |
1458 | return NULL; | |
1459 | error (_("No type named %s."), name); | |
c906108c SS |
1460 | } |
1461 | ||
1462 | struct type * | |
e6c014f2 | 1463 | lookup_unsigned_typename (const struct language_defn *language, |
0d5cff50 | 1464 | struct gdbarch *gdbarch, const char *name) |
c906108c | 1465 | { |
224c3ddb | 1466 | char *uns = (char *) alloca (strlen (name) + 10); |
c906108c SS |
1467 | |
1468 | strcpy (uns, "unsigned "); | |
1469 | strcpy (uns + 9, name); | |
e6c014f2 | 1470 | return lookup_typename (language, gdbarch, uns, (struct block *) NULL, 0); |
c906108c SS |
1471 | } |
1472 | ||
1473 | struct type * | |
e6c014f2 | 1474 | lookup_signed_typename (const struct language_defn *language, |
0d5cff50 | 1475 | struct gdbarch *gdbarch, const char *name) |
c906108c SS |
1476 | { |
1477 | struct type *t; | |
224c3ddb | 1478 | char *uns = (char *) alloca (strlen (name) + 8); |
c906108c SS |
1479 | |
1480 | strcpy (uns, "signed "); | |
1481 | strcpy (uns + 7, name); | |
e6c014f2 | 1482 | t = lookup_typename (language, gdbarch, uns, (struct block *) NULL, 1); |
7ba81444 | 1483 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
c906108c SS |
1484 | if (t != NULL) |
1485 | return t; | |
e6c014f2 | 1486 | return lookup_typename (language, gdbarch, name, (struct block *) NULL, 0); |
c906108c SS |
1487 | } |
1488 | ||
1489 | /* Lookup a structure type named "struct NAME", | |
1490 | visible in lexical block BLOCK. */ | |
1491 | ||
1492 | struct type * | |
270140bd | 1493 | lookup_struct (const char *name, const struct block *block) |
c906108c | 1494 | { |
52f0bd74 | 1495 | struct symbol *sym; |
c906108c | 1496 | |
d12307c1 | 1497 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1498 | |
1499 | if (sym == NULL) | |
1500 | { | |
8a3fe4f8 | 1501 | error (_("No struct type named %s."), name); |
c906108c SS |
1502 | } |
1503 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1504 | { | |
7ba81444 MS |
1505 | error (_("This context has class, union or enum %s, not a struct."), |
1506 | name); | |
c906108c SS |
1507 | } |
1508 | return (SYMBOL_TYPE (sym)); | |
1509 | } | |
1510 | ||
1511 | /* Lookup a union type named "union NAME", | |
1512 | visible in lexical block BLOCK. */ | |
1513 | ||
1514 | struct type * | |
270140bd | 1515 | lookup_union (const char *name, const struct block *block) |
c906108c | 1516 | { |
52f0bd74 | 1517 | struct symbol *sym; |
c5aa993b | 1518 | struct type *t; |
c906108c | 1519 | |
d12307c1 | 1520 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1521 | |
1522 | if (sym == NULL) | |
8a3fe4f8 | 1523 | error (_("No union type named %s."), name); |
c906108c | 1524 | |
c5aa993b | 1525 | t = SYMBOL_TYPE (sym); |
c906108c SS |
1526 | |
1527 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
c16abbde | 1528 | return t; |
c906108c | 1529 | |
7ba81444 MS |
1530 | /* If we get here, it's not a union. */ |
1531 | error (_("This context has class, struct or enum %s, not a union."), | |
1532 | name); | |
c906108c SS |
1533 | } |
1534 | ||
c906108c SS |
1535 | /* Lookup an enum type named "enum NAME", |
1536 | visible in lexical block BLOCK. */ | |
1537 | ||
1538 | struct type * | |
270140bd | 1539 | lookup_enum (const char *name, const struct block *block) |
c906108c | 1540 | { |
52f0bd74 | 1541 | struct symbol *sym; |
c906108c | 1542 | |
d12307c1 | 1543 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1544 | if (sym == NULL) |
1545 | { | |
8a3fe4f8 | 1546 | error (_("No enum type named %s."), name); |
c906108c SS |
1547 | } |
1548 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
1549 | { | |
7ba81444 MS |
1550 | error (_("This context has class, struct or union %s, not an enum."), |
1551 | name); | |
c906108c SS |
1552 | } |
1553 | return (SYMBOL_TYPE (sym)); | |
1554 | } | |
1555 | ||
1556 | /* Lookup a template type named "template NAME<TYPE>", | |
1557 | visible in lexical block BLOCK. */ | |
1558 | ||
1559 | struct type * | |
7ba81444 | 1560 | lookup_template_type (char *name, struct type *type, |
270140bd | 1561 | const struct block *block) |
c906108c SS |
1562 | { |
1563 | struct symbol *sym; | |
7ba81444 MS |
1564 | char *nam = (char *) |
1565 | alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4); | |
d8734c88 | 1566 | |
c906108c SS |
1567 | strcpy (nam, name); |
1568 | strcat (nam, "<"); | |
0004e5a2 | 1569 | strcat (nam, TYPE_NAME (type)); |
0963b4bd | 1570 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1571 | |
d12307c1 | 1572 | sym = lookup_symbol (nam, block, VAR_DOMAIN, 0).symbol; |
c906108c SS |
1573 | |
1574 | if (sym == NULL) | |
1575 | { | |
8a3fe4f8 | 1576 | error (_("No template type named %s."), name); |
c906108c SS |
1577 | } |
1578 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1579 | { | |
7ba81444 MS |
1580 | error (_("This context has class, union or enum %s, not a struct."), |
1581 | name); | |
c906108c SS |
1582 | } |
1583 | return (SYMBOL_TYPE (sym)); | |
1584 | } | |
1585 | ||
7ba81444 MS |
1586 | /* Given a type TYPE, lookup the type of the component of type named |
1587 | NAME. | |
c906108c | 1588 | |
7ba81444 MS |
1589 | TYPE can be either a struct or union, or a pointer or reference to |
1590 | a struct or union. If it is a pointer or reference, its target | |
1591 | type is automatically used. Thus '.' and '->' are interchangable, | |
1592 | as specified for the definitions of the expression element types | |
1593 | STRUCTOP_STRUCT and STRUCTOP_PTR. | |
c906108c SS |
1594 | |
1595 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
1596 | If NAME is the name of a baseclass type, return that type. */ | |
1597 | ||
1598 | struct type * | |
d7561cbb | 1599 | lookup_struct_elt_type (struct type *type, const char *name, int noerr) |
c906108c SS |
1600 | { |
1601 | int i; | |
1602 | ||
1603 | for (;;) | |
1604 | { | |
f168693b | 1605 | type = check_typedef (type); |
c906108c SS |
1606 | if (TYPE_CODE (type) != TYPE_CODE_PTR |
1607 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1608 | break; | |
1609 | type = TYPE_TARGET_TYPE (type); | |
1610 | } | |
1611 | ||
687d6395 MS |
1612 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
1613 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
c906108c | 1614 | { |
2f408ecb PA |
1615 | std::string type_name = type_to_string (type); |
1616 | error (_("Type %s is not a structure or union type."), | |
1617 | type_name.c_str ()); | |
c906108c SS |
1618 | } |
1619 | ||
1620 | #if 0 | |
7ba81444 MS |
1621 | /* FIXME: This change put in by Michael seems incorrect for the case |
1622 | where the structure tag name is the same as the member name. | |
0963b4bd | 1623 | I.e. when doing "ptype bell->bar" for "struct foo { int bar; int |
7ba81444 | 1624 | foo; } bell;" Disabled by fnf. */ |
c906108c | 1625 | { |
fe978cb0 | 1626 | char *type_name; |
c906108c | 1627 | |
fe978cb0 PA |
1628 | type_name = type_name_no_tag (type); |
1629 | if (type_name != NULL && strcmp (type_name, name) == 0) | |
c906108c SS |
1630 | return type; |
1631 | } | |
1632 | #endif | |
1633 | ||
1634 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1635 | { | |
0d5cff50 | 1636 | const char *t_field_name = TYPE_FIELD_NAME (type, i); |
c906108c | 1637 | |
db577aea | 1638 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c SS |
1639 | { |
1640 | return TYPE_FIELD_TYPE (type, i); | |
1641 | } | |
f5a010c0 PM |
1642 | else if (!t_field_name || *t_field_name == '\0') |
1643 | { | |
d8734c88 MS |
1644 | struct type *subtype |
1645 | = lookup_struct_elt_type (TYPE_FIELD_TYPE (type, i), name, 1); | |
1646 | ||
f5a010c0 PM |
1647 | if (subtype != NULL) |
1648 | return subtype; | |
1649 | } | |
c906108c SS |
1650 | } |
1651 | ||
1652 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1653 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1654 | { | |
1655 | struct type *t; | |
1656 | ||
9733fc94 | 1657 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 1); |
c906108c SS |
1658 | if (t != NULL) |
1659 | { | |
1660 | return t; | |
1661 | } | |
1662 | } | |
1663 | ||
1664 | if (noerr) | |
1665 | { | |
1666 | return NULL; | |
1667 | } | |
c5aa993b | 1668 | |
2f408ecb PA |
1669 | std::string type_name = type_to_string (type); |
1670 | error (_("Type %s has no component named %s."), type_name.c_str (), name); | |
c906108c SS |
1671 | } |
1672 | ||
ed3ef339 DE |
1673 | /* Store in *MAX the largest number representable by unsigned integer type |
1674 | TYPE. */ | |
1675 | ||
1676 | void | |
1677 | get_unsigned_type_max (struct type *type, ULONGEST *max) | |
1678 | { | |
1679 | unsigned int n; | |
1680 | ||
f168693b | 1681 | type = check_typedef (type); |
ed3ef339 DE |
1682 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && TYPE_UNSIGNED (type)); |
1683 | gdb_assert (TYPE_LENGTH (type) <= sizeof (ULONGEST)); | |
1684 | ||
1685 | /* Written this way to avoid overflow. */ | |
1686 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1687 | *max = ((((ULONGEST) 1 << (n - 1)) - 1) << 1) | 1; | |
1688 | } | |
1689 | ||
1690 | /* Store in *MIN, *MAX the smallest and largest numbers representable by | |
1691 | signed integer type TYPE. */ | |
1692 | ||
1693 | void | |
1694 | get_signed_type_minmax (struct type *type, LONGEST *min, LONGEST *max) | |
1695 | { | |
1696 | unsigned int n; | |
1697 | ||
f168693b | 1698 | type = check_typedef (type); |
ed3ef339 DE |
1699 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && !TYPE_UNSIGNED (type)); |
1700 | gdb_assert (TYPE_LENGTH (type) <= sizeof (LONGEST)); | |
1701 | ||
1702 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1703 | *min = -((ULONGEST) 1 << (n - 1)); | |
1704 | *max = ((ULONGEST) 1 << (n - 1)) - 1; | |
1705 | } | |
1706 | ||
ae6ae975 DE |
1707 | /* Internal routine called by TYPE_VPTR_FIELDNO to return the value of |
1708 | cplus_stuff.vptr_fieldno. | |
1709 | ||
1710 | cplus_stuff is initialized to cplus_struct_default which does not | |
1711 | set vptr_fieldno to -1 for portability reasons (IWBN to use C99 | |
1712 | designated initializers). We cope with that here. */ | |
1713 | ||
1714 | int | |
1715 | internal_type_vptr_fieldno (struct type *type) | |
1716 | { | |
f168693b | 1717 | type = check_typedef (type); |
ae6ae975 DE |
1718 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1719 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1720 | if (!HAVE_CPLUS_STRUCT (type)) | |
1721 | return -1; | |
1722 | return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno; | |
1723 | } | |
1724 | ||
1725 | /* Set the value of cplus_stuff.vptr_fieldno. */ | |
1726 | ||
1727 | void | |
1728 | set_type_vptr_fieldno (struct type *type, int fieldno) | |
1729 | { | |
f168693b | 1730 | type = check_typedef (type); |
ae6ae975 DE |
1731 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1732 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1733 | if (!HAVE_CPLUS_STRUCT (type)) | |
1734 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
1735 | TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno = fieldno; | |
1736 | } | |
1737 | ||
1738 | /* Internal routine called by TYPE_VPTR_BASETYPE to return the value of | |
1739 | cplus_stuff.vptr_basetype. */ | |
1740 | ||
1741 | struct type * | |
1742 | internal_type_vptr_basetype (struct type *type) | |
1743 | { | |
f168693b | 1744 | type = check_typedef (type); |
ae6ae975 DE |
1745 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1746 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1747 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF); | |
1748 | return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype; | |
1749 | } | |
1750 | ||
1751 | /* Set the value of cplus_stuff.vptr_basetype. */ | |
1752 | ||
1753 | void | |
1754 | set_type_vptr_basetype (struct type *type, struct type *basetype) | |
1755 | { | |
f168693b | 1756 | type = check_typedef (type); |
ae6ae975 DE |
1757 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1758 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1759 | if (!HAVE_CPLUS_STRUCT (type)) | |
1760 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
1761 | TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype = basetype; | |
1762 | } | |
1763 | ||
81fe8080 DE |
1764 | /* Lookup the vptr basetype/fieldno values for TYPE. |
1765 | If found store vptr_basetype in *BASETYPEP if non-NULL, and return | |
1766 | vptr_fieldno. Also, if found and basetype is from the same objfile, | |
1767 | cache the results. | |
1768 | If not found, return -1 and ignore BASETYPEP. | |
1769 | Callers should be aware that in some cases (for example, | |
c906108c | 1770 | the type or one of its baseclasses is a stub type and we are |
d48cc9dd DJ |
1771 | debugging a .o file, or the compiler uses DWARF-2 and is not GCC), |
1772 | this function will not be able to find the | |
7ba81444 | 1773 | virtual function table pointer, and vptr_fieldno will remain -1 and |
81fe8080 | 1774 | vptr_basetype will remain NULL or incomplete. */ |
c906108c | 1775 | |
81fe8080 DE |
1776 | int |
1777 | get_vptr_fieldno (struct type *type, struct type **basetypep) | |
c906108c | 1778 | { |
f168693b | 1779 | type = check_typedef (type); |
c906108c SS |
1780 | |
1781 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1782 | { | |
1783 | int i; | |
1784 | ||
7ba81444 MS |
1785 | /* We must start at zero in case the first (and only) baseclass |
1786 | is virtual (and hence we cannot share the table pointer). */ | |
c906108c SS |
1787 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1788 | { | |
81fe8080 DE |
1789 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
1790 | int fieldno; | |
1791 | struct type *basetype; | |
1792 | ||
1793 | fieldno = get_vptr_fieldno (baseclass, &basetype); | |
1794 | if (fieldno >= 0) | |
c906108c | 1795 | { |
81fe8080 | 1796 | /* If the type comes from a different objfile we can't cache |
0963b4bd | 1797 | it, it may have a different lifetime. PR 2384 */ |
5ef73790 | 1798 | if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype)) |
81fe8080 | 1799 | { |
ae6ae975 DE |
1800 | set_type_vptr_fieldno (type, fieldno); |
1801 | set_type_vptr_basetype (type, basetype); | |
81fe8080 DE |
1802 | } |
1803 | if (basetypep) | |
1804 | *basetypep = basetype; | |
1805 | return fieldno; | |
c906108c SS |
1806 | } |
1807 | } | |
81fe8080 DE |
1808 | |
1809 | /* Not found. */ | |
1810 | return -1; | |
1811 | } | |
1812 | else | |
1813 | { | |
1814 | if (basetypep) | |
1815 | *basetypep = TYPE_VPTR_BASETYPE (type); | |
1816 | return TYPE_VPTR_FIELDNO (type); | |
c906108c SS |
1817 | } |
1818 | } | |
1819 | ||
44e1a9eb DJ |
1820 | static void |
1821 | stub_noname_complaint (void) | |
1822 | { | |
e2e0b3e5 | 1823 | complaint (&symfile_complaints, _("stub type has NULL name")); |
44e1a9eb DJ |
1824 | } |
1825 | ||
d98b7a16 | 1826 | /* Worker for is_dynamic_type. */ |
80180f79 | 1827 | |
d98b7a16 | 1828 | static int |
ee715b5a | 1829 | is_dynamic_type_internal (struct type *type, int top_level) |
80180f79 SA |
1830 | { |
1831 | type = check_typedef (type); | |
1832 | ||
e771e4be PMR |
1833 | /* We only want to recognize references at the outermost level. */ |
1834 | if (top_level && TYPE_CODE (type) == TYPE_CODE_REF) | |
1835 | type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1836 | ||
3cdcd0ce JB |
1837 | /* Types that have a dynamic TYPE_DATA_LOCATION are considered |
1838 | dynamic, even if the type itself is statically defined. | |
1839 | From a user's point of view, this may appear counter-intuitive; | |
1840 | but it makes sense in this context, because the point is to determine | |
1841 | whether any part of the type needs to be resolved before it can | |
1842 | be exploited. */ | |
1843 | if (TYPE_DATA_LOCATION (type) != NULL | |
1844 | && (TYPE_DATA_LOCATION_KIND (type) == PROP_LOCEXPR | |
1845 | || TYPE_DATA_LOCATION_KIND (type) == PROP_LOCLIST)) | |
1846 | return 1; | |
1847 | ||
3f2f83dd KB |
1848 | if (TYPE_ASSOCIATED_PROP (type)) |
1849 | return 1; | |
1850 | ||
1851 | if (TYPE_ALLOCATED_PROP (type)) | |
1852 | return 1; | |
1853 | ||
80180f79 SA |
1854 | switch (TYPE_CODE (type)) |
1855 | { | |
6f8a3220 | 1856 | case TYPE_CODE_RANGE: |
ddb87a81 JB |
1857 | { |
1858 | /* A range type is obviously dynamic if it has at least one | |
1859 | dynamic bound. But also consider the range type to be | |
1860 | dynamic when its subtype is dynamic, even if the bounds | |
1861 | of the range type are static. It allows us to assume that | |
1862 | the subtype of a static range type is also static. */ | |
1863 | return (!has_static_range (TYPE_RANGE_DATA (type)) | |
ee715b5a | 1864 | || is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0)); |
ddb87a81 | 1865 | } |
6f8a3220 | 1866 | |
80180f79 SA |
1867 | case TYPE_CODE_ARRAY: |
1868 | { | |
80180f79 | 1869 | gdb_assert (TYPE_NFIELDS (type) == 1); |
6f8a3220 JB |
1870 | |
1871 | /* The array is dynamic if either the bounds are dynamic, | |
1872 | or the elements it contains have a dynamic contents. */ | |
ee715b5a | 1873 | if (is_dynamic_type_internal (TYPE_INDEX_TYPE (type), 0)) |
80180f79 | 1874 | return 1; |
ee715b5a | 1875 | return is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0); |
80180f79 | 1876 | } |
012370f6 TT |
1877 | |
1878 | case TYPE_CODE_STRUCT: | |
1879 | case TYPE_CODE_UNION: | |
1880 | { | |
1881 | int i; | |
1882 | ||
1883 | for (i = 0; i < TYPE_NFIELDS (type); ++i) | |
1884 | if (!field_is_static (&TYPE_FIELD (type, i)) | |
ee715b5a | 1885 | && is_dynamic_type_internal (TYPE_FIELD_TYPE (type, i), 0)) |
012370f6 TT |
1886 | return 1; |
1887 | } | |
1888 | break; | |
80180f79 | 1889 | } |
92e2a17f TT |
1890 | |
1891 | return 0; | |
80180f79 SA |
1892 | } |
1893 | ||
d98b7a16 TT |
1894 | /* See gdbtypes.h. */ |
1895 | ||
1896 | int | |
1897 | is_dynamic_type (struct type *type) | |
1898 | { | |
ee715b5a | 1899 | return is_dynamic_type_internal (type, 1); |
d98b7a16 TT |
1900 | } |
1901 | ||
df25ebbd | 1902 | static struct type *resolve_dynamic_type_internal |
ee715b5a | 1903 | (struct type *type, struct property_addr_info *addr_stack, int top_level); |
d98b7a16 | 1904 | |
df25ebbd JB |
1905 | /* Given a dynamic range type (dyn_range_type) and a stack of |
1906 | struct property_addr_info elements, return a static version | |
1907 | of that type. */ | |
d190df30 | 1908 | |
80180f79 | 1909 | static struct type * |
df25ebbd JB |
1910 | resolve_dynamic_range (struct type *dyn_range_type, |
1911 | struct property_addr_info *addr_stack) | |
80180f79 SA |
1912 | { |
1913 | CORE_ADDR value; | |
ddb87a81 | 1914 | struct type *static_range_type, *static_target_type; |
80180f79 | 1915 | const struct dynamic_prop *prop; |
80180f79 SA |
1916 | struct dynamic_prop low_bound, high_bound; |
1917 | ||
6f8a3220 | 1918 | gdb_assert (TYPE_CODE (dyn_range_type) == TYPE_CODE_RANGE); |
80180f79 | 1919 | |
6f8a3220 | 1920 | prop = &TYPE_RANGE_DATA (dyn_range_type)->low; |
63e43d3a | 1921 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
80180f79 SA |
1922 | { |
1923 | low_bound.kind = PROP_CONST; | |
1924 | low_bound.data.const_val = value; | |
1925 | } | |
1926 | else | |
1927 | { | |
1928 | low_bound.kind = PROP_UNDEFINED; | |
1929 | low_bound.data.const_val = 0; | |
1930 | } | |
1931 | ||
6f8a3220 | 1932 | prop = &TYPE_RANGE_DATA (dyn_range_type)->high; |
63e43d3a | 1933 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
80180f79 SA |
1934 | { |
1935 | high_bound.kind = PROP_CONST; | |
1936 | high_bound.data.const_val = value; | |
c451ebe5 | 1937 | |
6f8a3220 | 1938 | if (TYPE_RANGE_DATA (dyn_range_type)->flag_upper_bound_is_count) |
c451ebe5 SA |
1939 | high_bound.data.const_val |
1940 | = low_bound.data.const_val + high_bound.data.const_val - 1; | |
80180f79 SA |
1941 | } |
1942 | else | |
1943 | { | |
1944 | high_bound.kind = PROP_UNDEFINED; | |
1945 | high_bound.data.const_val = 0; | |
1946 | } | |
1947 | ||
ddb87a81 JB |
1948 | static_target_type |
1949 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (dyn_range_type), | |
ee715b5a | 1950 | addr_stack, 0); |
6f8a3220 | 1951 | static_range_type = create_range_type (copy_type (dyn_range_type), |
ddb87a81 | 1952 | static_target_type, |
6f8a3220 JB |
1953 | &low_bound, &high_bound); |
1954 | TYPE_RANGE_DATA (static_range_type)->flag_bound_evaluated = 1; | |
1955 | return static_range_type; | |
1956 | } | |
1957 | ||
1958 | /* Resolves dynamic bound values of an array type TYPE to static ones. | |
df25ebbd JB |
1959 | ADDR_STACK is a stack of struct property_addr_info to be used |
1960 | if needed during the dynamic resolution. */ | |
6f8a3220 JB |
1961 | |
1962 | static struct type * | |
df25ebbd JB |
1963 | resolve_dynamic_array (struct type *type, |
1964 | struct property_addr_info *addr_stack) | |
6f8a3220 JB |
1965 | { |
1966 | CORE_ADDR value; | |
1967 | struct type *elt_type; | |
1968 | struct type *range_type; | |
1969 | struct type *ary_dim; | |
3f2f83dd | 1970 | struct dynamic_prop *prop; |
6f8a3220 JB |
1971 | |
1972 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
1973 | ||
3f2f83dd KB |
1974 | type = copy_type (type); |
1975 | ||
6f8a3220 JB |
1976 | elt_type = type; |
1977 | range_type = check_typedef (TYPE_INDEX_TYPE (elt_type)); | |
df25ebbd | 1978 | range_type = resolve_dynamic_range (range_type, addr_stack); |
6f8a3220 | 1979 | |
3f2f83dd KB |
1980 | /* Resolve allocated/associated here before creating a new array type, which |
1981 | will update the length of the array accordingly. */ | |
1982 | prop = TYPE_ALLOCATED_PROP (type); | |
1983 | if (prop != NULL && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
1984 | { | |
1985 | TYPE_DYN_PROP_ADDR (prop) = value; | |
1986 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
1987 | } | |
1988 | prop = TYPE_ASSOCIATED_PROP (type); | |
1989 | if (prop != NULL && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
1990 | { | |
1991 | TYPE_DYN_PROP_ADDR (prop) = value; | |
1992 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
1993 | } | |
1994 | ||
80180f79 SA |
1995 | ary_dim = check_typedef (TYPE_TARGET_TYPE (elt_type)); |
1996 | ||
1997 | if (ary_dim != NULL && TYPE_CODE (ary_dim) == TYPE_CODE_ARRAY) | |
d0d84780 | 1998 | elt_type = resolve_dynamic_array (ary_dim, addr_stack); |
80180f79 SA |
1999 | else |
2000 | elt_type = TYPE_TARGET_TYPE (type); | |
2001 | ||
3f2f83dd KB |
2002 | return create_array_type_with_stride (type, elt_type, range_type, |
2003 | TYPE_FIELD_BITSIZE (type, 0)); | |
80180f79 SA |
2004 | } |
2005 | ||
012370f6 | 2006 | /* Resolve dynamic bounds of members of the union TYPE to static |
df25ebbd JB |
2007 | bounds. ADDR_STACK is a stack of struct property_addr_info |
2008 | to be used if needed during the dynamic resolution. */ | |
012370f6 TT |
2009 | |
2010 | static struct type * | |
df25ebbd JB |
2011 | resolve_dynamic_union (struct type *type, |
2012 | struct property_addr_info *addr_stack) | |
012370f6 TT |
2013 | { |
2014 | struct type *resolved_type; | |
2015 | int i; | |
2016 | unsigned int max_len = 0; | |
2017 | ||
2018 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_UNION); | |
2019 | ||
2020 | resolved_type = copy_type (type); | |
2021 | TYPE_FIELDS (resolved_type) | |
224c3ddb SM |
2022 | = (struct field *) TYPE_ALLOC (resolved_type, |
2023 | TYPE_NFIELDS (resolved_type) | |
2024 | * sizeof (struct field)); | |
012370f6 TT |
2025 | memcpy (TYPE_FIELDS (resolved_type), |
2026 | TYPE_FIELDS (type), | |
2027 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
2028 | for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i) | |
2029 | { | |
2030 | struct type *t; | |
2031 | ||
2032 | if (field_is_static (&TYPE_FIELD (type, i))) | |
2033 | continue; | |
2034 | ||
d98b7a16 | 2035 | t = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i), |
ee715b5a | 2036 | addr_stack, 0); |
012370f6 TT |
2037 | TYPE_FIELD_TYPE (resolved_type, i) = t; |
2038 | if (TYPE_LENGTH (t) > max_len) | |
2039 | max_len = TYPE_LENGTH (t); | |
2040 | } | |
2041 | ||
2042 | TYPE_LENGTH (resolved_type) = max_len; | |
2043 | return resolved_type; | |
2044 | } | |
2045 | ||
2046 | /* Resolve dynamic bounds of members of the struct TYPE to static | |
df25ebbd JB |
2047 | bounds. ADDR_STACK is a stack of struct property_addr_info to |
2048 | be used if needed during the dynamic resolution. */ | |
012370f6 TT |
2049 | |
2050 | static struct type * | |
df25ebbd JB |
2051 | resolve_dynamic_struct (struct type *type, |
2052 | struct property_addr_info *addr_stack) | |
012370f6 TT |
2053 | { |
2054 | struct type *resolved_type; | |
2055 | int i; | |
6908c509 | 2056 | unsigned resolved_type_bit_length = 0; |
012370f6 TT |
2057 | |
2058 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT); | |
2059 | gdb_assert (TYPE_NFIELDS (type) > 0); | |
2060 | ||
2061 | resolved_type = copy_type (type); | |
2062 | TYPE_FIELDS (resolved_type) | |
224c3ddb SM |
2063 | = (struct field *) TYPE_ALLOC (resolved_type, |
2064 | TYPE_NFIELDS (resolved_type) | |
2065 | * sizeof (struct field)); | |
012370f6 TT |
2066 | memcpy (TYPE_FIELDS (resolved_type), |
2067 | TYPE_FIELDS (type), | |
2068 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
2069 | for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i) | |
2070 | { | |
6908c509 | 2071 | unsigned new_bit_length; |
df25ebbd | 2072 | struct property_addr_info pinfo; |
012370f6 TT |
2073 | |
2074 | if (field_is_static (&TYPE_FIELD (type, i))) | |
2075 | continue; | |
2076 | ||
6908c509 JB |
2077 | /* As we know this field is not a static field, the field's |
2078 | field_loc_kind should be FIELD_LOC_KIND_BITPOS. Verify | |
2079 | this is the case, but only trigger a simple error rather | |
2080 | than an internal error if that fails. While failing | |
2081 | that verification indicates a bug in our code, the error | |
2082 | is not severe enough to suggest to the user he stops | |
2083 | his debugging session because of it. */ | |
df25ebbd | 2084 | if (TYPE_FIELD_LOC_KIND (type, i) != FIELD_LOC_KIND_BITPOS) |
6908c509 JB |
2085 | error (_("Cannot determine struct field location" |
2086 | " (invalid location kind)")); | |
df25ebbd JB |
2087 | |
2088 | pinfo.type = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
c3345124 | 2089 | pinfo.valaddr = addr_stack->valaddr; |
9920b434 BH |
2090 | pinfo.addr |
2091 | = (addr_stack->addr | |
2092 | + (TYPE_FIELD_BITPOS (resolved_type, i) / TARGET_CHAR_BIT)); | |
df25ebbd JB |
2093 | pinfo.next = addr_stack; |
2094 | ||
2095 | TYPE_FIELD_TYPE (resolved_type, i) | |
2096 | = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i), | |
ee715b5a | 2097 | &pinfo, 0); |
df25ebbd JB |
2098 | gdb_assert (TYPE_FIELD_LOC_KIND (resolved_type, i) |
2099 | == FIELD_LOC_KIND_BITPOS); | |
2100 | ||
6908c509 JB |
2101 | new_bit_length = TYPE_FIELD_BITPOS (resolved_type, i); |
2102 | if (TYPE_FIELD_BITSIZE (resolved_type, i) != 0) | |
2103 | new_bit_length += TYPE_FIELD_BITSIZE (resolved_type, i); | |
2104 | else | |
2105 | new_bit_length += (TYPE_LENGTH (TYPE_FIELD_TYPE (resolved_type, i)) | |
2106 | * TARGET_CHAR_BIT); | |
2107 | ||
2108 | /* Normally, we would use the position and size of the last field | |
2109 | to determine the size of the enclosing structure. But GCC seems | |
2110 | to be encoding the position of some fields incorrectly when | |
2111 | the struct contains a dynamic field that is not placed last. | |
2112 | So we compute the struct size based on the field that has | |
2113 | the highest position + size - probably the best we can do. */ | |
2114 | if (new_bit_length > resolved_type_bit_length) | |
2115 | resolved_type_bit_length = new_bit_length; | |
012370f6 TT |
2116 | } |
2117 | ||
9920b434 BH |
2118 | /* The length of a type won't change for fortran, but it does for C and Ada. |
2119 | For fortran the size of dynamic fields might change over time but not the | |
2120 | type length of the structure. If we adapt it, we run into problems | |
2121 | when calculating the element offset for arrays of structs. */ | |
2122 | if (current_language->la_language != language_fortran) | |
2123 | TYPE_LENGTH (resolved_type) | |
2124 | = (resolved_type_bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
6908c509 | 2125 | |
9e195661 PMR |
2126 | /* The Ada language uses this field as a cache for static fixed types: reset |
2127 | it as RESOLVED_TYPE must have its own static fixed type. */ | |
2128 | TYPE_TARGET_TYPE (resolved_type) = NULL; | |
2129 | ||
012370f6 TT |
2130 | return resolved_type; |
2131 | } | |
2132 | ||
d98b7a16 | 2133 | /* Worker for resolved_dynamic_type. */ |
80180f79 | 2134 | |
d98b7a16 | 2135 | static struct type * |
df25ebbd | 2136 | resolve_dynamic_type_internal (struct type *type, |
ee715b5a PMR |
2137 | struct property_addr_info *addr_stack, |
2138 | int top_level) | |
80180f79 SA |
2139 | { |
2140 | struct type *real_type = check_typedef (type); | |
6f8a3220 | 2141 | struct type *resolved_type = type; |
d9823cbb | 2142 | struct dynamic_prop *prop; |
3cdcd0ce | 2143 | CORE_ADDR value; |
80180f79 | 2144 | |
ee715b5a | 2145 | if (!is_dynamic_type_internal (real_type, top_level)) |
80180f79 SA |
2146 | return type; |
2147 | ||
5537b577 | 2148 | if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
6f8a3220 | 2149 | { |
cac9b138 JK |
2150 | resolved_type = copy_type (type); |
2151 | TYPE_TARGET_TYPE (resolved_type) | |
ee715b5a PMR |
2152 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), addr_stack, |
2153 | top_level); | |
5537b577 JK |
2154 | } |
2155 | else | |
2156 | { | |
2157 | /* Before trying to resolve TYPE, make sure it is not a stub. */ | |
2158 | type = real_type; | |
012370f6 | 2159 | |
5537b577 JK |
2160 | switch (TYPE_CODE (type)) |
2161 | { | |
e771e4be PMR |
2162 | case TYPE_CODE_REF: |
2163 | { | |
2164 | struct property_addr_info pinfo; | |
2165 | ||
2166 | pinfo.type = check_typedef (TYPE_TARGET_TYPE (type)); | |
c3345124 JB |
2167 | pinfo.valaddr = NULL; |
2168 | if (addr_stack->valaddr != NULL) | |
2169 | pinfo.addr = extract_typed_address (addr_stack->valaddr, type); | |
2170 | else | |
2171 | pinfo.addr = read_memory_typed_address (addr_stack->addr, type); | |
e771e4be PMR |
2172 | pinfo.next = addr_stack; |
2173 | ||
2174 | resolved_type = copy_type (type); | |
2175 | TYPE_TARGET_TYPE (resolved_type) | |
2176 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), | |
2177 | &pinfo, top_level); | |
2178 | break; | |
2179 | } | |
2180 | ||
5537b577 | 2181 | case TYPE_CODE_ARRAY: |
df25ebbd | 2182 | resolved_type = resolve_dynamic_array (type, addr_stack); |
5537b577 JK |
2183 | break; |
2184 | ||
2185 | case TYPE_CODE_RANGE: | |
df25ebbd | 2186 | resolved_type = resolve_dynamic_range (type, addr_stack); |
5537b577 JK |
2187 | break; |
2188 | ||
2189 | case TYPE_CODE_UNION: | |
df25ebbd | 2190 | resolved_type = resolve_dynamic_union (type, addr_stack); |
5537b577 JK |
2191 | break; |
2192 | ||
2193 | case TYPE_CODE_STRUCT: | |
df25ebbd | 2194 | resolved_type = resolve_dynamic_struct (type, addr_stack); |
5537b577 JK |
2195 | break; |
2196 | } | |
6f8a3220 | 2197 | } |
80180f79 | 2198 | |
3cdcd0ce JB |
2199 | /* Resolve data_location attribute. */ |
2200 | prop = TYPE_DATA_LOCATION (resolved_type); | |
63e43d3a PMR |
2201 | if (prop != NULL |
2202 | && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
3cdcd0ce | 2203 | { |
d9823cbb KB |
2204 | TYPE_DYN_PROP_ADDR (prop) = value; |
2205 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
3cdcd0ce | 2206 | } |
3cdcd0ce | 2207 | |
80180f79 SA |
2208 | return resolved_type; |
2209 | } | |
2210 | ||
d98b7a16 TT |
2211 | /* See gdbtypes.h */ |
2212 | ||
2213 | struct type * | |
c3345124 JB |
2214 | resolve_dynamic_type (struct type *type, const gdb_byte *valaddr, |
2215 | CORE_ADDR addr) | |
d98b7a16 | 2216 | { |
c3345124 JB |
2217 | struct property_addr_info pinfo |
2218 | = {check_typedef (type), valaddr, addr, NULL}; | |
df25ebbd | 2219 | |
ee715b5a | 2220 | return resolve_dynamic_type_internal (type, &pinfo, 1); |
d98b7a16 TT |
2221 | } |
2222 | ||
d9823cbb KB |
2223 | /* See gdbtypes.h */ |
2224 | ||
2225 | struct dynamic_prop * | |
2226 | get_dyn_prop (enum dynamic_prop_node_kind prop_kind, const struct type *type) | |
2227 | { | |
2228 | struct dynamic_prop_list *node = TYPE_DYN_PROP_LIST (type); | |
2229 | ||
2230 | while (node != NULL) | |
2231 | { | |
2232 | if (node->prop_kind == prop_kind) | |
283a9958 | 2233 | return &node->prop; |
d9823cbb KB |
2234 | node = node->next; |
2235 | } | |
2236 | return NULL; | |
2237 | } | |
2238 | ||
2239 | /* See gdbtypes.h */ | |
2240 | ||
2241 | void | |
2242 | add_dyn_prop (enum dynamic_prop_node_kind prop_kind, struct dynamic_prop prop, | |
2243 | struct type *type, struct objfile *objfile) | |
2244 | { | |
2245 | struct dynamic_prop_list *temp; | |
2246 | ||
2247 | gdb_assert (TYPE_OBJFILE_OWNED (type)); | |
2248 | ||
224c3ddb | 2249 | temp = XOBNEW (&objfile->objfile_obstack, struct dynamic_prop_list); |
d9823cbb | 2250 | temp->prop_kind = prop_kind; |
283a9958 | 2251 | temp->prop = prop; |
d9823cbb KB |
2252 | temp->next = TYPE_DYN_PROP_LIST (type); |
2253 | ||
2254 | TYPE_DYN_PROP_LIST (type) = temp; | |
2255 | } | |
2256 | ||
9920b434 BH |
2257 | /* Remove dynamic property from TYPE in case it exists. */ |
2258 | ||
2259 | void | |
2260 | remove_dyn_prop (enum dynamic_prop_node_kind prop_kind, | |
2261 | struct type *type) | |
2262 | { | |
2263 | struct dynamic_prop_list *prev_node, *curr_node; | |
2264 | ||
2265 | curr_node = TYPE_DYN_PROP_LIST (type); | |
2266 | prev_node = NULL; | |
2267 | ||
2268 | while (NULL != curr_node) | |
2269 | { | |
2270 | if (curr_node->prop_kind == prop_kind) | |
2271 | { | |
2272 | /* Update the linked list but don't free anything. | |
2273 | The property was allocated on objstack and it is not known | |
2274 | if we are on top of it. Nevertheless, everything is released | |
2275 | when the complete objstack is freed. */ | |
2276 | if (NULL == prev_node) | |
2277 | TYPE_DYN_PROP_LIST (type) = curr_node->next; | |
2278 | else | |
2279 | prev_node->next = curr_node->next; | |
2280 | ||
2281 | return; | |
2282 | } | |
2283 | ||
2284 | prev_node = curr_node; | |
2285 | curr_node = curr_node->next; | |
2286 | } | |
2287 | } | |
d9823cbb | 2288 | |
92163a10 JK |
2289 | /* Find the real type of TYPE. This function returns the real type, |
2290 | after removing all layers of typedefs, and completing opaque or stub | |
2291 | types. Completion changes the TYPE argument, but stripping of | |
2292 | typedefs does not. | |
2293 | ||
2294 | Instance flags (e.g. const/volatile) are preserved as typedefs are | |
2295 | stripped. If necessary a new qualified form of the underlying type | |
2296 | is created. | |
2297 | ||
2298 | NOTE: This will return a typedef if TYPE_TARGET_TYPE for the typedef has | |
2299 | not been computed and we're either in the middle of reading symbols, or | |
2300 | there was no name for the typedef in the debug info. | |
2301 | ||
9bc118a5 DE |
2302 | NOTE: Lookup of opaque types can throw errors for invalid symbol files. |
2303 | QUITs in the symbol reading code can also throw. | |
2304 | Thus this function can throw an exception. | |
2305 | ||
92163a10 JK |
2306 | If TYPE is a TYPE_CODE_TYPEDEF, its length is updated to the length of |
2307 | the target type. | |
c906108c SS |
2308 | |
2309 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
0963b4bd | 2310 | we can find a full definition in some other file. If so, copy this |
7ba81444 MS |
2311 | definition, so we can use it in future. There used to be a comment |
2312 | (but not any code) that if we don't find a full definition, we'd | |
2313 | set a flag so we don't spend time in the future checking the same | |
2314 | type. That would be a mistake, though--we might load in more | |
92163a10 | 2315 | symbols which contain a full definition for the type. */ |
c906108c SS |
2316 | |
2317 | struct type * | |
a02fd225 | 2318 | check_typedef (struct type *type) |
c906108c SS |
2319 | { |
2320 | struct type *orig_type = type; | |
92163a10 JK |
2321 | /* While we're removing typedefs, we don't want to lose qualifiers. |
2322 | E.g., const/volatile. */ | |
2323 | int instance_flags = TYPE_INSTANCE_FLAGS (type); | |
a02fd225 | 2324 | |
423c0af8 MS |
2325 | gdb_assert (type); |
2326 | ||
c906108c SS |
2327 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
2328 | { | |
2329 | if (!TYPE_TARGET_TYPE (type)) | |
2330 | { | |
0d5cff50 | 2331 | const char *name; |
c906108c SS |
2332 | struct symbol *sym; |
2333 | ||
2334 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 2335 | reading a symtab. Infinite recursion is one danger. */ |
c906108c | 2336 | if (currently_reading_symtab) |
92163a10 | 2337 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
2338 | |
2339 | name = type_name_no_tag (type); | |
7ba81444 MS |
2340 | /* FIXME: shouldn't we separately check the TYPE_NAME and |
2341 | the TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or | |
2342 | VAR_DOMAIN as appropriate? (this code was written before | |
2343 | TYPE_NAME and TYPE_TAG_NAME were separate). */ | |
c906108c SS |
2344 | if (name == NULL) |
2345 | { | |
23136709 | 2346 | stub_noname_complaint (); |
92163a10 | 2347 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2348 | } |
d12307c1 | 2349 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
2350 | if (sym) |
2351 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
7ba81444 | 2352 | else /* TYPE_CODE_UNDEF */ |
e9bb382b | 2353 | TYPE_TARGET_TYPE (type) = alloc_type_arch (get_type_arch (type)); |
c906108c SS |
2354 | } |
2355 | type = TYPE_TARGET_TYPE (type); | |
c906108c | 2356 | |
92163a10 JK |
2357 | /* Preserve the instance flags as we traverse down the typedef chain. |
2358 | ||
2359 | Handling address spaces/classes is nasty, what do we do if there's a | |
2360 | conflict? | |
2361 | E.g., what if an outer typedef marks the type as class_1 and an inner | |
2362 | typedef marks the type as class_2? | |
2363 | This is the wrong place to do such error checking. We leave it to | |
2364 | the code that created the typedef in the first place to flag the | |
2365 | error. We just pick the outer address space (akin to letting the | |
2366 | outer cast in a chain of casting win), instead of assuming | |
2367 | "it can't happen". */ | |
2368 | { | |
2369 | const int ALL_SPACES = (TYPE_INSTANCE_FLAG_CODE_SPACE | |
2370 | | TYPE_INSTANCE_FLAG_DATA_SPACE); | |
2371 | const int ALL_CLASSES = TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL; | |
2372 | int new_instance_flags = TYPE_INSTANCE_FLAGS (type); | |
2373 | ||
2374 | /* Treat code vs data spaces and address classes separately. */ | |
2375 | if ((instance_flags & ALL_SPACES) != 0) | |
2376 | new_instance_flags &= ~ALL_SPACES; | |
2377 | if ((instance_flags & ALL_CLASSES) != 0) | |
2378 | new_instance_flags &= ~ALL_CLASSES; | |
2379 | ||
2380 | instance_flags |= new_instance_flags; | |
2381 | } | |
2382 | } | |
a02fd225 | 2383 | |
7ba81444 MS |
2384 | /* If this is a struct/class/union with no fields, then check |
2385 | whether a full definition exists somewhere else. This is for | |
2386 | systems where a type definition with no fields is issued for such | |
2387 | types, instead of identifying them as stub types in the first | |
2388 | place. */ | |
c5aa993b | 2389 | |
7ba81444 MS |
2390 | if (TYPE_IS_OPAQUE (type) |
2391 | && opaque_type_resolution | |
2392 | && !currently_reading_symtab) | |
c906108c | 2393 | { |
0d5cff50 | 2394 | const char *name = type_name_no_tag (type); |
c5aa993b | 2395 | struct type *newtype; |
d8734c88 | 2396 | |
c906108c SS |
2397 | if (name == NULL) |
2398 | { | |
23136709 | 2399 | stub_noname_complaint (); |
92163a10 | 2400 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
2401 | } |
2402 | newtype = lookup_transparent_type (name); | |
ad766c0a | 2403 | |
c906108c | 2404 | if (newtype) |
ad766c0a | 2405 | { |
7ba81444 MS |
2406 | /* If the resolved type and the stub are in the same |
2407 | objfile, then replace the stub type with the real deal. | |
2408 | But if they're in separate objfiles, leave the stub | |
2409 | alone; we'll just look up the transparent type every time | |
2410 | we call check_typedef. We can't create pointers between | |
2411 | types allocated to different objfiles, since they may | |
2412 | have different lifetimes. Trying to copy NEWTYPE over to | |
2413 | TYPE's objfile is pointless, too, since you'll have to | |
2414 | move over any other types NEWTYPE refers to, which could | |
2415 | be an unbounded amount of stuff. */ | |
ad766c0a | 2416 | if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
92163a10 JK |
2417 | type = make_qualified_type (newtype, |
2418 | TYPE_INSTANCE_FLAGS (type), | |
2419 | type); | |
ad766c0a JB |
2420 | else |
2421 | type = newtype; | |
2422 | } | |
c906108c | 2423 | } |
7ba81444 MS |
2424 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
2425 | types. */ | |
74a9bb82 | 2426 | else if (TYPE_STUB (type) && !currently_reading_symtab) |
c906108c | 2427 | { |
0d5cff50 | 2428 | const char *name = type_name_no_tag (type); |
c906108c | 2429 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
176620f1 | 2430 | TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or VAR_DOMAIN |
7b83ea04 AC |
2431 | as appropriate? (this code was written before TYPE_NAME and |
2432 | TYPE_TAG_NAME were separate). */ | |
c906108c | 2433 | struct symbol *sym; |
d8734c88 | 2434 | |
c906108c SS |
2435 | if (name == NULL) |
2436 | { | |
23136709 | 2437 | stub_noname_complaint (); |
92163a10 | 2438 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2439 | } |
d12307c1 | 2440 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0).symbol; |
c906108c | 2441 | if (sym) |
c26f2453 JB |
2442 | { |
2443 | /* Same as above for opaque types, we can replace the stub | |
92163a10 | 2444 | with the complete type only if they are in the same |
c26f2453 JB |
2445 | objfile. */ |
2446 | if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type)) | |
92163a10 JK |
2447 | type = make_qualified_type (SYMBOL_TYPE (sym), |
2448 | TYPE_INSTANCE_FLAGS (type), | |
2449 | type); | |
c26f2453 JB |
2450 | else |
2451 | type = SYMBOL_TYPE (sym); | |
2452 | } | |
c906108c SS |
2453 | } |
2454 | ||
74a9bb82 | 2455 | if (TYPE_TARGET_STUB (type)) |
c906108c | 2456 | { |
c906108c SS |
2457 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); |
2458 | ||
74a9bb82 | 2459 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
c5aa993b | 2460 | { |
73e2eb35 | 2461 | /* Nothing we can do. */ |
c5aa993b | 2462 | } |
c906108c SS |
2463 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
2464 | { | |
2465 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
876cecd0 | 2466 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
2467 | } |
2468 | } | |
92163a10 JK |
2469 | |
2470 | type = make_qualified_type (type, instance_flags, NULL); | |
2471 | ||
7ba81444 | 2472 | /* Cache TYPE_LENGTH for future use. */ |
c906108c | 2473 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
92163a10 | 2474 | |
c906108c SS |
2475 | return type; |
2476 | } | |
2477 | ||
7ba81444 | 2478 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
48319d1f | 2479 | occurs, silently return a void type. */ |
c91ecb25 | 2480 | |
b9362cc7 | 2481 | static struct type * |
48319d1f | 2482 | safe_parse_type (struct gdbarch *gdbarch, char *p, int length) |
c91ecb25 ND |
2483 | { |
2484 | struct ui_file *saved_gdb_stderr; | |
34365054 | 2485 | struct type *type = NULL; /* Initialize to keep gcc happy. */ |
c91ecb25 | 2486 | |
7ba81444 | 2487 | /* Suppress error messages. */ |
c91ecb25 | 2488 | saved_gdb_stderr = gdb_stderr; |
d7e74731 | 2489 | gdb_stderr = &null_stream; |
c91ecb25 | 2490 | |
7ba81444 | 2491 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
492d29ea | 2492 | TRY |
8e7b59a5 KS |
2493 | { |
2494 | type = parse_and_eval_type (p, length); | |
2495 | } | |
492d29ea PA |
2496 | CATCH (except, RETURN_MASK_ERROR) |
2497 | { | |
2498 | type = builtin_type (gdbarch)->builtin_void; | |
2499 | } | |
2500 | END_CATCH | |
c91ecb25 | 2501 | |
7ba81444 | 2502 | /* Stop suppressing error messages. */ |
c91ecb25 ND |
2503 | gdb_stderr = saved_gdb_stderr; |
2504 | ||
2505 | return type; | |
2506 | } | |
2507 | ||
c906108c SS |
2508 | /* Ugly hack to convert method stubs into method types. |
2509 | ||
7ba81444 MS |
2510 | He ain't kiddin'. This demangles the name of the method into a |
2511 | string including argument types, parses out each argument type, | |
2512 | generates a string casting a zero to that type, evaluates the | |
2513 | string, and stuffs the resulting type into an argtype vector!!! | |
2514 | Then it knows the type of the whole function (including argument | |
2515 | types for overloading), which info used to be in the stab's but was | |
2516 | removed to hack back the space required for them. */ | |
c906108c | 2517 | |
de17c821 | 2518 | static void |
fba45db2 | 2519 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c | 2520 | { |
50810684 | 2521 | struct gdbarch *gdbarch = get_type_arch (type); |
c906108c SS |
2522 | struct fn_field *f; |
2523 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
8de20a37 TT |
2524 | char *demangled_name = gdb_demangle (mangled_name, |
2525 | DMGL_PARAMS | DMGL_ANSI); | |
c906108c SS |
2526 | char *argtypetext, *p; |
2527 | int depth = 0, argcount = 1; | |
ad2f7632 | 2528 | struct field *argtypes; |
c906108c SS |
2529 | struct type *mtype; |
2530 | ||
2531 | /* Make sure we got back a function string that we can use. */ | |
2532 | if (demangled_name) | |
2533 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
2534 | else |
2535 | p = NULL; | |
c906108c SS |
2536 | |
2537 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
2538 | error (_("Internal: Cannot demangle mangled name `%s'."), |
2539 | mangled_name); | |
c906108c SS |
2540 | |
2541 | /* Now, read in the parameters that define this type. */ | |
2542 | p += 1; | |
2543 | argtypetext = p; | |
2544 | while (*p) | |
2545 | { | |
070ad9f0 | 2546 | if (*p == '(' || *p == '<') |
c906108c SS |
2547 | { |
2548 | depth += 1; | |
2549 | } | |
070ad9f0 | 2550 | else if (*p == ')' || *p == '>') |
c906108c SS |
2551 | { |
2552 | depth -= 1; | |
2553 | } | |
2554 | else if (*p == ',' && depth == 0) | |
2555 | { | |
2556 | argcount += 1; | |
2557 | } | |
2558 | ||
2559 | p += 1; | |
2560 | } | |
2561 | ||
ad2f7632 | 2562 | /* If we read one argument and it was ``void'', don't count it. */ |
61012eef | 2563 | if (startswith (argtypetext, "(void)")) |
ad2f7632 | 2564 | argcount -= 1; |
c906108c | 2565 | |
ad2f7632 DJ |
2566 | /* We need one extra slot, for the THIS pointer. */ |
2567 | ||
2568 | argtypes = (struct field *) | |
2569 | TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); | |
c906108c | 2570 | p = argtypetext; |
4a1970e4 DJ |
2571 | |
2572 | /* Add THIS pointer for non-static methods. */ | |
2573 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
2574 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
2575 | argcount = 0; | |
2576 | else | |
2577 | { | |
ad2f7632 | 2578 | argtypes[0].type = lookup_pointer_type (type); |
4a1970e4 DJ |
2579 | argcount = 1; |
2580 | } | |
c906108c | 2581 | |
0963b4bd | 2582 | if (*p != ')') /* () means no args, skip while. */ |
c906108c SS |
2583 | { |
2584 | depth = 0; | |
2585 | while (*p) | |
2586 | { | |
2587 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
2588 | { | |
ad2f7632 DJ |
2589 | /* Avoid parsing of ellipsis, they will be handled below. |
2590 | Also avoid ``void'' as above. */ | |
2591 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 | |
2592 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 2593 | { |
ad2f7632 | 2594 | argtypes[argcount].type = |
48319d1f | 2595 | safe_parse_type (gdbarch, argtypetext, p - argtypetext); |
c906108c SS |
2596 | argcount += 1; |
2597 | } | |
2598 | argtypetext = p + 1; | |
2599 | } | |
2600 | ||
070ad9f0 | 2601 | if (*p == '(' || *p == '<') |
c906108c SS |
2602 | { |
2603 | depth += 1; | |
2604 | } | |
070ad9f0 | 2605 | else if (*p == ')' || *p == '>') |
c906108c SS |
2606 | { |
2607 | depth -= 1; | |
2608 | } | |
2609 | ||
2610 | p += 1; | |
2611 | } | |
2612 | } | |
2613 | ||
c906108c SS |
2614 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
2615 | ||
2616 | /* Now update the old "stub" type into a real type. */ | |
2617 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
09e2d7c7 DE |
2618 | /* MTYPE may currently be a function (TYPE_CODE_FUNC). |
2619 | We want a method (TYPE_CODE_METHOD). */ | |
2620 | smash_to_method_type (mtype, type, TYPE_TARGET_TYPE (mtype), | |
2621 | argtypes, argcount, p[-2] == '.'); | |
876cecd0 | 2622 | TYPE_STUB (mtype) = 0; |
c906108c | 2623 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
ad2f7632 DJ |
2624 | |
2625 | xfree (demangled_name); | |
c906108c SS |
2626 | } |
2627 | ||
7ba81444 MS |
2628 | /* This is the external interface to check_stub_method, above. This |
2629 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
2630 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
2631 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
2632 | correct. | |
de17c821 DJ |
2633 | |
2634 | This function unfortunately can not die until stabs do. */ | |
2635 | ||
2636 | void | |
2637 | check_stub_method_group (struct type *type, int method_id) | |
2638 | { | |
2639 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
2640 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
f710f4fc | 2641 | int j, found_stub = 0; |
de17c821 DJ |
2642 | |
2643 | for (j = 0; j < len; j++) | |
2644 | if (TYPE_FN_FIELD_STUB (f, j)) | |
2645 | { | |
2646 | found_stub = 1; | |
2647 | check_stub_method (type, method_id, j); | |
2648 | } | |
2649 | ||
7ba81444 MS |
2650 | /* GNU v3 methods with incorrect names were corrected when we read |
2651 | in type information, because it was cheaper to do it then. The | |
2652 | only GNU v2 methods with incorrect method names are operators and | |
2653 | destructors; destructors were also corrected when we read in type | |
2654 | information. | |
de17c821 DJ |
2655 | |
2656 | Therefore the only thing we need to handle here are v2 operator | |
2657 | names. */ | |
61012eef | 2658 | if (found_stub && !startswith (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z")) |
de17c821 DJ |
2659 | { |
2660 | int ret; | |
2661 | char dem_opname[256]; | |
2662 | ||
7ba81444 MS |
2663 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
2664 | method_id), | |
de17c821 DJ |
2665 | dem_opname, DMGL_ANSI); |
2666 | if (!ret) | |
7ba81444 MS |
2667 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
2668 | method_id), | |
de17c821 DJ |
2669 | dem_opname, 0); |
2670 | if (ret) | |
2671 | TYPE_FN_FIELDLIST_NAME (type, method_id) = xstrdup (dem_opname); | |
2672 | } | |
2673 | } | |
2674 | ||
9655fd1a JK |
2675 | /* Ensure it is in .rodata (if available) by workarounding GCC PR 44690. */ |
2676 | const struct cplus_struct_type cplus_struct_default = { }; | |
c906108c SS |
2677 | |
2678 | void | |
fba45db2 | 2679 | allocate_cplus_struct_type (struct type *type) |
c906108c | 2680 | { |
b4ba55a1 JB |
2681 | if (HAVE_CPLUS_STRUCT (type)) |
2682 | /* Structure was already allocated. Nothing more to do. */ | |
2683 | return; | |
2684 | ||
2685 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF; | |
2686 | TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
2687 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
2688 | *(TYPE_RAW_CPLUS_SPECIFIC (type)) = cplus_struct_default; | |
ae6ae975 | 2689 | set_type_vptr_fieldno (type, -1); |
c906108c SS |
2690 | } |
2691 | ||
b4ba55a1 JB |
2692 | const struct gnat_aux_type gnat_aux_default = |
2693 | { NULL }; | |
2694 | ||
2695 | /* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF, | |
2696 | and allocate the associated gnat-specific data. The gnat-specific | |
2697 | data is also initialized to gnat_aux_default. */ | |
5212577a | 2698 | |
b4ba55a1 JB |
2699 | void |
2700 | allocate_gnat_aux_type (struct type *type) | |
2701 | { | |
2702 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF; | |
2703 | TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) | |
2704 | TYPE_ALLOC (type, sizeof (struct gnat_aux_type)); | |
2705 | *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default; | |
2706 | } | |
2707 | ||
ae438bc5 UW |
2708 | /* Helper function to initialize a newly allocated type. Set type code |
2709 | to CODE and initialize the type-specific fields accordingly. */ | |
2710 | ||
2711 | static void | |
2712 | set_type_code (struct type *type, enum type_code code) | |
2713 | { | |
2714 | TYPE_CODE (type) = code; | |
2715 | ||
2716 | switch (code) | |
2717 | { | |
2718 | case TYPE_CODE_STRUCT: | |
2719 | case TYPE_CODE_UNION: | |
2720 | case TYPE_CODE_NAMESPACE: | |
2721 | INIT_CPLUS_SPECIFIC (type); | |
2722 | break; | |
2723 | case TYPE_CODE_FLT: | |
2724 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT; | |
2725 | break; | |
2726 | case TYPE_CODE_FUNC: | |
2727 | INIT_FUNC_SPECIFIC (type); | |
2728 | break; | |
2729 | } | |
2730 | } | |
2731 | ||
19f392bc UW |
2732 | /* Helper function to verify floating-point format and size. |
2733 | BIT is the type size in bits; if BIT equals -1, the size is | |
2734 | determined by the floatformat. Returns size to be used. */ | |
2735 | ||
2736 | static int | |
2737 | verify_floatformat (int bit, const struct floatformat **floatformats) | |
2738 | { | |
9b790ce7 UW |
2739 | gdb_assert (floatformats != NULL); |
2740 | gdb_assert (floatformats[0] != NULL && floatformats[1] != NULL); | |
2741 | ||
19f392bc | 2742 | if (bit == -1) |
9b790ce7 | 2743 | bit = floatformats[0]->totalsize; |
19f392bc UW |
2744 | gdb_assert (bit >= 0); |
2745 | ||
9b790ce7 UW |
2746 | size_t len = bit / TARGET_CHAR_BIT; |
2747 | gdb_assert (len >= floatformat_totalsize_bytes (floatformats[0])); | |
2748 | gdb_assert (len >= floatformat_totalsize_bytes (floatformats[1])); | |
19f392bc UW |
2749 | |
2750 | return bit; | |
2751 | } | |
2752 | ||
c906108c SS |
2753 | /* Helper function to initialize the standard scalar types. |
2754 | ||
86f62fd7 TT |
2755 | If NAME is non-NULL, then it is used to initialize the type name. |
2756 | Note that NAME is not copied; it is required to have a lifetime at | |
2757 | least as long as OBJFILE. */ | |
c906108c SS |
2758 | |
2759 | struct type * | |
19f392bc UW |
2760 | init_type (struct objfile *objfile, enum type_code code, int length, |
2761 | const char *name) | |
c906108c | 2762 | { |
52f0bd74 | 2763 | struct type *type; |
c906108c SS |
2764 | |
2765 | type = alloc_type (objfile); | |
ae438bc5 | 2766 | set_type_code (type, code); |
c906108c | 2767 | TYPE_LENGTH (type) = length; |
86f62fd7 | 2768 | TYPE_NAME (type) = name; |
c906108c | 2769 | |
c16abbde | 2770 | return type; |
c906108c | 2771 | } |
19f392bc UW |
2772 | |
2773 | /* Allocate a TYPE_CODE_INT type structure associated with OBJFILE. | |
2774 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
2775 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
2776 | ||
2777 | struct type * | |
2778 | init_integer_type (struct objfile *objfile, | |
2779 | int bit, int unsigned_p, const char *name) | |
2780 | { | |
2781 | struct type *t; | |
2782 | ||
2783 | t = init_type (objfile, TYPE_CODE_INT, bit / TARGET_CHAR_BIT, name); | |
2784 | if (unsigned_p) | |
2785 | TYPE_UNSIGNED (t) = 1; | |
2786 | ||
2787 | return t; | |
2788 | } | |
2789 | ||
2790 | /* Allocate a TYPE_CODE_CHAR type structure associated with OBJFILE. | |
2791 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
2792 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
2793 | ||
2794 | struct type * | |
2795 | init_character_type (struct objfile *objfile, | |
2796 | int bit, int unsigned_p, const char *name) | |
2797 | { | |
2798 | struct type *t; | |
2799 | ||
2800 | t = init_type (objfile, TYPE_CODE_CHAR, bit / TARGET_CHAR_BIT, name); | |
2801 | if (unsigned_p) | |
2802 | TYPE_UNSIGNED (t) = 1; | |
2803 | ||
2804 | return t; | |
2805 | } | |
2806 | ||
2807 | /* Allocate a TYPE_CODE_BOOL type structure associated with OBJFILE. | |
2808 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
2809 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
2810 | ||
2811 | struct type * | |
2812 | init_boolean_type (struct objfile *objfile, | |
2813 | int bit, int unsigned_p, const char *name) | |
2814 | { | |
2815 | struct type *t; | |
2816 | ||
2817 | t = init_type (objfile, TYPE_CODE_BOOL, bit / TARGET_CHAR_BIT, name); | |
2818 | if (unsigned_p) | |
2819 | TYPE_UNSIGNED (t) = 1; | |
2820 | ||
2821 | return t; | |
2822 | } | |
2823 | ||
2824 | /* Allocate a TYPE_CODE_FLT type structure associated with OBJFILE. | |
2825 | BIT is the type size in bits; if BIT equals -1, the size is | |
2826 | determined by the floatformat. NAME is the type name. Set the | |
2827 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
2828 | ||
2829 | struct type * | |
2830 | init_float_type (struct objfile *objfile, | |
2831 | int bit, const char *name, | |
2832 | const struct floatformat **floatformats) | |
2833 | { | |
2834 | struct type *t; | |
2835 | ||
2836 | bit = verify_floatformat (bit, floatformats); | |
2837 | t = init_type (objfile, TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, name); | |
2838 | TYPE_FLOATFORMAT (t) = floatformats; | |
2839 | ||
2840 | return t; | |
2841 | } | |
2842 | ||
2843 | /* Allocate a TYPE_CODE_DECFLOAT type structure associated with OBJFILE. | |
2844 | BIT is the type size in bits. NAME is the type name. */ | |
2845 | ||
2846 | struct type * | |
2847 | init_decfloat_type (struct objfile *objfile, int bit, const char *name) | |
2848 | { | |
2849 | struct type *t; | |
2850 | ||
2851 | t = init_type (objfile, TYPE_CODE_DECFLOAT, bit / TARGET_CHAR_BIT, name); | |
2852 | return t; | |
2853 | } | |
2854 | ||
2855 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with OBJFILE. | |
2856 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
2857 | ||
2858 | struct type * | |
2859 | init_complex_type (struct objfile *objfile, | |
2860 | const char *name, struct type *target_type) | |
2861 | { | |
2862 | struct type *t; | |
2863 | ||
2864 | t = init_type (objfile, TYPE_CODE_COMPLEX, | |
2865 | 2 * TYPE_LENGTH (target_type), name); | |
2866 | TYPE_TARGET_TYPE (t) = target_type; | |
2867 | return t; | |
2868 | } | |
2869 | ||
2870 | /* Allocate a TYPE_CODE_PTR type structure associated with OBJFILE. | |
2871 | BIT is the pointer type size in bits. NAME is the type name. | |
2872 | TARGET_TYPE is the pointer target type. Always sets the pointer type's | |
2873 | TYPE_UNSIGNED flag. */ | |
2874 | ||
2875 | struct type * | |
2876 | init_pointer_type (struct objfile *objfile, | |
2877 | int bit, const char *name, struct type *target_type) | |
2878 | { | |
2879 | struct type *t; | |
2880 | ||
2881 | t = init_type (objfile, TYPE_CODE_PTR, bit / TARGET_CHAR_BIT, name); | |
2882 | TYPE_TARGET_TYPE (t) = target_type; | |
2883 | TYPE_UNSIGNED (t) = 1; | |
2884 | return t; | |
2885 | } | |
2886 | ||
5212577a DE |
2887 | \f |
2888 | /* Queries on types. */ | |
c906108c | 2889 | |
c906108c | 2890 | int |
fba45db2 | 2891 | can_dereference (struct type *t) |
c906108c | 2892 | { |
7ba81444 MS |
2893 | /* FIXME: Should we return true for references as well as |
2894 | pointers? */ | |
f168693b | 2895 | t = check_typedef (t); |
c906108c SS |
2896 | return |
2897 | (t != NULL | |
2898 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
2899 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
2900 | } | |
2901 | ||
adf40b2e | 2902 | int |
fba45db2 | 2903 | is_integral_type (struct type *t) |
adf40b2e | 2904 | { |
f168693b | 2905 | t = check_typedef (t); |
adf40b2e JM |
2906 | return |
2907 | ((t != NULL) | |
d4f3574e SS |
2908 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
2909 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
4f2aea11 | 2910 | || (TYPE_CODE (t) == TYPE_CODE_FLAGS) |
d4f3574e SS |
2911 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) |
2912 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
2913 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
2914 | } |
2915 | ||
e09342b5 TJB |
2916 | /* Return true if TYPE is scalar. */ |
2917 | ||
220475ed | 2918 | int |
e09342b5 TJB |
2919 | is_scalar_type (struct type *type) |
2920 | { | |
f168693b | 2921 | type = check_typedef (type); |
e09342b5 TJB |
2922 | |
2923 | switch (TYPE_CODE (type)) | |
2924 | { | |
2925 | case TYPE_CODE_ARRAY: | |
2926 | case TYPE_CODE_STRUCT: | |
2927 | case TYPE_CODE_UNION: | |
2928 | case TYPE_CODE_SET: | |
2929 | case TYPE_CODE_STRING: | |
e09342b5 TJB |
2930 | return 0; |
2931 | default: | |
2932 | return 1; | |
2933 | } | |
2934 | } | |
2935 | ||
2936 | /* Return true if T is scalar, or a composite type which in practice has | |
90e4670f TJB |
2937 | the memory layout of a scalar type. E.g., an array or struct with only |
2938 | one scalar element inside it, or a union with only scalar elements. */ | |
e09342b5 TJB |
2939 | |
2940 | int | |
2941 | is_scalar_type_recursive (struct type *t) | |
2942 | { | |
f168693b | 2943 | t = check_typedef (t); |
e09342b5 TJB |
2944 | |
2945 | if (is_scalar_type (t)) | |
2946 | return 1; | |
2947 | /* Are we dealing with an array or string of known dimensions? */ | |
2948 | else if ((TYPE_CODE (t) == TYPE_CODE_ARRAY | |
2949 | || TYPE_CODE (t) == TYPE_CODE_STRING) && TYPE_NFIELDS (t) == 1 | |
2950 | && TYPE_CODE (TYPE_INDEX_TYPE (t)) == TYPE_CODE_RANGE) | |
2951 | { | |
2952 | LONGEST low_bound, high_bound; | |
2953 | struct type *elt_type = check_typedef (TYPE_TARGET_TYPE (t)); | |
2954 | ||
2955 | get_discrete_bounds (TYPE_INDEX_TYPE (t), &low_bound, &high_bound); | |
2956 | ||
2957 | return high_bound == low_bound && is_scalar_type_recursive (elt_type); | |
2958 | } | |
2959 | /* Are we dealing with a struct with one element? */ | |
2960 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT && TYPE_NFIELDS (t) == 1) | |
2961 | return is_scalar_type_recursive (TYPE_FIELD_TYPE (t, 0)); | |
2962 | else if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
2963 | { | |
2964 | int i, n = TYPE_NFIELDS (t); | |
2965 | ||
2966 | /* If all elements of the union are scalar, then the union is scalar. */ | |
2967 | for (i = 0; i < n; i++) | |
2968 | if (!is_scalar_type_recursive (TYPE_FIELD_TYPE (t, i))) | |
2969 | return 0; | |
2970 | ||
2971 | return 1; | |
2972 | } | |
2973 | ||
2974 | return 0; | |
2975 | } | |
2976 | ||
6c659fc2 SC |
2977 | /* Return true is T is a class or a union. False otherwise. */ |
2978 | ||
2979 | int | |
2980 | class_or_union_p (const struct type *t) | |
2981 | { | |
2982 | return (TYPE_CODE (t) == TYPE_CODE_STRUCT | |
2983 | || TYPE_CODE (t) == TYPE_CODE_UNION); | |
2984 | } | |
2985 | ||
4e8f195d TT |
2986 | /* A helper function which returns true if types A and B represent the |
2987 | "same" class type. This is true if the types have the same main | |
2988 | type, or the same name. */ | |
2989 | ||
2990 | int | |
2991 | class_types_same_p (const struct type *a, const struct type *b) | |
2992 | { | |
2993 | return (TYPE_MAIN_TYPE (a) == TYPE_MAIN_TYPE (b) | |
2994 | || (TYPE_NAME (a) && TYPE_NAME (b) | |
2995 | && !strcmp (TYPE_NAME (a), TYPE_NAME (b)))); | |
2996 | } | |
2997 | ||
a9d5ef47 SW |
2998 | /* If BASE is an ancestor of DCLASS return the distance between them. |
2999 | otherwise return -1; | |
3000 | eg: | |
3001 | ||
3002 | class A {}; | |
3003 | class B: public A {}; | |
3004 | class C: public B {}; | |
3005 | class D: C {}; | |
3006 | ||
3007 | distance_to_ancestor (A, A, 0) = 0 | |
3008 | distance_to_ancestor (A, B, 0) = 1 | |
3009 | distance_to_ancestor (A, C, 0) = 2 | |
3010 | distance_to_ancestor (A, D, 0) = 3 | |
3011 | ||
3012 | If PUBLIC is 1 then only public ancestors are considered, | |
3013 | and the function returns the distance only if BASE is a public ancestor | |
3014 | of DCLASS. | |
3015 | Eg: | |
3016 | ||
0963b4bd | 3017 | distance_to_ancestor (A, D, 1) = -1. */ |
c906108c | 3018 | |
0526b37a | 3019 | static int |
fe978cb0 | 3020 | distance_to_ancestor (struct type *base, struct type *dclass, int is_public) |
c906108c SS |
3021 | { |
3022 | int i; | |
a9d5ef47 | 3023 | int d; |
c5aa993b | 3024 | |
f168693b SM |
3025 | base = check_typedef (base); |
3026 | dclass = check_typedef (dclass); | |
c906108c | 3027 | |
4e8f195d | 3028 | if (class_types_same_p (base, dclass)) |
a9d5ef47 | 3029 | return 0; |
c906108c SS |
3030 | |
3031 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
4e8f195d | 3032 | { |
fe978cb0 | 3033 | if (is_public && ! BASETYPE_VIA_PUBLIC (dclass, i)) |
0526b37a SW |
3034 | continue; |
3035 | ||
fe978cb0 | 3036 | d = distance_to_ancestor (base, TYPE_BASECLASS (dclass, i), is_public); |
a9d5ef47 SW |
3037 | if (d >= 0) |
3038 | return 1 + d; | |
4e8f195d | 3039 | } |
c906108c | 3040 | |
a9d5ef47 | 3041 | return -1; |
c906108c | 3042 | } |
4e8f195d | 3043 | |
0526b37a SW |
3044 | /* Check whether BASE is an ancestor or base class or DCLASS |
3045 | Return 1 if so, and 0 if not. | |
3046 | Note: If BASE and DCLASS are of the same type, this function | |
3047 | will return 1. So for some class A, is_ancestor (A, A) will | |
3048 | return 1. */ | |
3049 | ||
3050 | int | |
3051 | is_ancestor (struct type *base, struct type *dclass) | |
3052 | { | |
a9d5ef47 | 3053 | return distance_to_ancestor (base, dclass, 0) >= 0; |
0526b37a SW |
3054 | } |
3055 | ||
4e8f195d TT |
3056 | /* Like is_ancestor, but only returns true when BASE is a public |
3057 | ancestor of DCLASS. */ | |
3058 | ||
3059 | int | |
3060 | is_public_ancestor (struct type *base, struct type *dclass) | |
3061 | { | |
a9d5ef47 | 3062 | return distance_to_ancestor (base, dclass, 1) >= 0; |
4e8f195d TT |
3063 | } |
3064 | ||
3065 | /* A helper function for is_unique_ancestor. */ | |
3066 | ||
3067 | static int | |
3068 | is_unique_ancestor_worker (struct type *base, struct type *dclass, | |
3069 | int *offset, | |
8af8e3bc PA |
3070 | const gdb_byte *valaddr, int embedded_offset, |
3071 | CORE_ADDR address, struct value *val) | |
4e8f195d TT |
3072 | { |
3073 | int i, count = 0; | |
3074 | ||
f168693b SM |
3075 | base = check_typedef (base); |
3076 | dclass = check_typedef (dclass); | |
4e8f195d TT |
3077 | |
3078 | for (i = 0; i < TYPE_N_BASECLASSES (dclass) && count < 2; ++i) | |
3079 | { | |
8af8e3bc PA |
3080 | struct type *iter; |
3081 | int this_offset; | |
4e8f195d | 3082 | |
8af8e3bc PA |
3083 | iter = check_typedef (TYPE_BASECLASS (dclass, i)); |
3084 | ||
3085 | this_offset = baseclass_offset (dclass, i, valaddr, embedded_offset, | |
3086 | address, val); | |
4e8f195d TT |
3087 | |
3088 | if (class_types_same_p (base, iter)) | |
3089 | { | |
3090 | /* If this is the first subclass, set *OFFSET and set count | |
3091 | to 1. Otherwise, if this is at the same offset as | |
3092 | previous instances, do nothing. Otherwise, increment | |
3093 | count. */ | |
3094 | if (*offset == -1) | |
3095 | { | |
3096 | *offset = this_offset; | |
3097 | count = 1; | |
3098 | } | |
3099 | else if (this_offset == *offset) | |
3100 | { | |
3101 | /* Nothing. */ | |
3102 | } | |
3103 | else | |
3104 | ++count; | |
3105 | } | |
3106 | else | |
3107 | count += is_unique_ancestor_worker (base, iter, offset, | |
8af8e3bc PA |
3108 | valaddr, |
3109 | embedded_offset + this_offset, | |
3110 | address, val); | |
4e8f195d TT |
3111 | } |
3112 | ||
3113 | return count; | |
3114 | } | |
3115 | ||
3116 | /* Like is_ancestor, but only returns true if BASE is a unique base | |
3117 | class of the type of VAL. */ | |
3118 | ||
3119 | int | |
3120 | is_unique_ancestor (struct type *base, struct value *val) | |
3121 | { | |
3122 | int offset = -1; | |
3123 | ||
3124 | return is_unique_ancestor_worker (base, value_type (val), &offset, | |
8af8e3bc PA |
3125 | value_contents_for_printing (val), |
3126 | value_embedded_offset (val), | |
3127 | value_address (val), val) == 1; | |
4e8f195d TT |
3128 | } |
3129 | ||
c906108c | 3130 | \f |
5212577a | 3131 | /* Overload resolution. */ |
c906108c | 3132 | |
6403aeea SW |
3133 | /* Return the sum of the rank of A with the rank of B. */ |
3134 | ||
3135 | struct rank | |
3136 | sum_ranks (struct rank a, struct rank b) | |
3137 | { | |
3138 | struct rank c; | |
3139 | c.rank = a.rank + b.rank; | |
a9d5ef47 | 3140 | c.subrank = a.subrank + b.subrank; |
6403aeea SW |
3141 | return c; |
3142 | } | |
3143 | ||
3144 | /* Compare rank A and B and return: | |
3145 | 0 if a = b | |
3146 | 1 if a is better than b | |
3147 | -1 if b is better than a. */ | |
3148 | ||
3149 | int | |
3150 | compare_ranks (struct rank a, struct rank b) | |
3151 | { | |
3152 | if (a.rank == b.rank) | |
a9d5ef47 SW |
3153 | { |
3154 | if (a.subrank == b.subrank) | |
3155 | return 0; | |
3156 | if (a.subrank < b.subrank) | |
3157 | return 1; | |
3158 | if (a.subrank > b.subrank) | |
3159 | return -1; | |
3160 | } | |
6403aeea SW |
3161 | |
3162 | if (a.rank < b.rank) | |
3163 | return 1; | |
3164 | ||
0963b4bd | 3165 | /* a.rank > b.rank */ |
6403aeea SW |
3166 | return -1; |
3167 | } | |
c5aa993b | 3168 | |
0963b4bd | 3169 | /* Functions for overload resolution begin here. */ |
c906108c SS |
3170 | |
3171 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
3172 | 0 => A and B are identical |
3173 | 1 => A and B are incomparable | |
3174 | 2 => A is better than B | |
3175 | 3 => A is worse than B */ | |
c906108c SS |
3176 | |
3177 | int | |
fba45db2 | 3178 | compare_badness (struct badness_vector *a, struct badness_vector *b) |
c906108c SS |
3179 | { |
3180 | int i; | |
3181 | int tmp; | |
c5aa993b JM |
3182 | short found_pos = 0; /* any positives in c? */ |
3183 | short found_neg = 0; /* any negatives in c? */ | |
3184 | ||
3185 | /* differing lengths => incomparable */ | |
c906108c SS |
3186 | if (a->length != b->length) |
3187 | return 1; | |
3188 | ||
c5aa993b JM |
3189 | /* Subtract b from a */ |
3190 | for (i = 0; i < a->length; i++) | |
c906108c | 3191 | { |
6403aeea | 3192 | tmp = compare_ranks (b->rank[i], a->rank[i]); |
c906108c | 3193 | if (tmp > 0) |
c5aa993b | 3194 | found_pos = 1; |
c906108c | 3195 | else if (tmp < 0) |
c5aa993b | 3196 | found_neg = 1; |
c906108c SS |
3197 | } |
3198 | ||
3199 | if (found_pos) | |
3200 | { | |
3201 | if (found_neg) | |
c5aa993b | 3202 | return 1; /* incomparable */ |
c906108c | 3203 | else |
c5aa993b | 3204 | return 3; /* A > B */ |
c906108c | 3205 | } |
c5aa993b JM |
3206 | else |
3207 | /* no positives */ | |
c906108c SS |
3208 | { |
3209 | if (found_neg) | |
c5aa993b | 3210 | return 2; /* A < B */ |
c906108c | 3211 | else |
c5aa993b | 3212 | return 0; /* A == B */ |
c906108c SS |
3213 | } |
3214 | } | |
3215 | ||
7ba81444 MS |
3216 | /* Rank a function by comparing its parameter types (PARMS, length |
3217 | NPARMS), to the types of an argument list (ARGS, length NARGS). | |
3218 | Return a pointer to a badness vector. This has NARGS + 1 | |
3219 | entries. */ | |
c906108c SS |
3220 | |
3221 | struct badness_vector * | |
7ba81444 | 3222 | rank_function (struct type **parms, int nparms, |
da096638 | 3223 | struct value **args, int nargs) |
c906108c SS |
3224 | { |
3225 | int i; | |
8d749320 | 3226 | struct badness_vector *bv = XNEW (struct badness_vector); |
c906108c SS |
3227 | int min_len = nparms < nargs ? nparms : nargs; |
3228 | ||
0963b4bd | 3229 | bv->length = nargs + 1; /* add 1 for the length-match rank. */ |
c4e54771 | 3230 | bv->rank = XNEWVEC (struct rank, nargs + 1); |
c906108c SS |
3231 | |
3232 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 3233 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 3234 | |
c906108c | 3235 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
3236 | arguments and ellipsis parameter lists, we should consider those |
3237 | and rank the length-match more finely. */ | |
c906108c | 3238 | |
6403aeea SW |
3239 | LENGTH_MATCH (bv) = (nargs != nparms) |
3240 | ? LENGTH_MISMATCH_BADNESS | |
3241 | : EXACT_MATCH_BADNESS; | |
c906108c | 3242 | |
0963b4bd | 3243 | /* Now rank all the parameters of the candidate function. */ |
74cc24b0 | 3244 | for (i = 1; i <= min_len; i++) |
da096638 KS |
3245 | bv->rank[i] = rank_one_type (parms[i - 1], value_type (args[i - 1]), |
3246 | args[i - 1]); | |
c906108c | 3247 | |
0963b4bd | 3248 | /* If more arguments than parameters, add dummy entries. */ |
c5aa993b | 3249 | for (i = min_len + 1; i <= nargs; i++) |
c906108c SS |
3250 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
3251 | ||
3252 | return bv; | |
3253 | } | |
3254 | ||
973ccf8b DJ |
3255 | /* Compare the names of two integer types, assuming that any sign |
3256 | qualifiers have been checked already. We do it this way because | |
3257 | there may be an "int" in the name of one of the types. */ | |
3258 | ||
3259 | static int | |
3260 | integer_types_same_name_p (const char *first, const char *second) | |
3261 | { | |
3262 | int first_p, second_p; | |
3263 | ||
7ba81444 MS |
3264 | /* If both are shorts, return 1; if neither is a short, keep |
3265 | checking. */ | |
973ccf8b DJ |
3266 | first_p = (strstr (first, "short") != NULL); |
3267 | second_p = (strstr (second, "short") != NULL); | |
3268 | if (first_p && second_p) | |
3269 | return 1; | |
3270 | if (first_p || second_p) | |
3271 | return 0; | |
3272 | ||
3273 | /* Likewise for long. */ | |
3274 | first_p = (strstr (first, "long") != NULL); | |
3275 | second_p = (strstr (second, "long") != NULL); | |
3276 | if (first_p && second_p) | |
3277 | return 1; | |
3278 | if (first_p || second_p) | |
3279 | return 0; | |
3280 | ||
3281 | /* Likewise for char. */ | |
3282 | first_p = (strstr (first, "char") != NULL); | |
3283 | second_p = (strstr (second, "char") != NULL); | |
3284 | if (first_p && second_p) | |
3285 | return 1; | |
3286 | if (first_p || second_p) | |
3287 | return 0; | |
3288 | ||
3289 | /* They must both be ints. */ | |
3290 | return 1; | |
3291 | } | |
3292 | ||
7062b0a0 SW |
3293 | /* Compares type A to type B returns 1 if the represent the same type |
3294 | 0 otherwise. */ | |
3295 | ||
bd69fc68 | 3296 | int |
7062b0a0 SW |
3297 | types_equal (struct type *a, struct type *b) |
3298 | { | |
3299 | /* Identical type pointers. */ | |
3300 | /* However, this still doesn't catch all cases of same type for b | |
3301 | and a. The reason is that builtin types are different from | |
3302 | the same ones constructed from the object. */ | |
3303 | if (a == b) | |
3304 | return 1; | |
3305 | ||
3306 | /* Resolve typedefs */ | |
3307 | if (TYPE_CODE (a) == TYPE_CODE_TYPEDEF) | |
3308 | a = check_typedef (a); | |
3309 | if (TYPE_CODE (b) == TYPE_CODE_TYPEDEF) | |
3310 | b = check_typedef (b); | |
3311 | ||
3312 | /* If after resolving typedefs a and b are not of the same type | |
3313 | code then they are not equal. */ | |
3314 | if (TYPE_CODE (a) != TYPE_CODE (b)) | |
3315 | return 0; | |
3316 | ||
3317 | /* If a and b are both pointers types or both reference types then | |
3318 | they are equal of the same type iff the objects they refer to are | |
3319 | of the same type. */ | |
3320 | if (TYPE_CODE (a) == TYPE_CODE_PTR | |
3321 | || TYPE_CODE (a) == TYPE_CODE_REF) | |
3322 | return types_equal (TYPE_TARGET_TYPE (a), | |
3323 | TYPE_TARGET_TYPE (b)); | |
3324 | ||
0963b4bd | 3325 | /* Well, damnit, if the names are exactly the same, I'll say they |
7062b0a0 SW |
3326 | are exactly the same. This happens when we generate method |
3327 | stubs. The types won't point to the same address, but they | |
0963b4bd | 3328 | really are the same. */ |
7062b0a0 SW |
3329 | |
3330 | if (TYPE_NAME (a) && TYPE_NAME (b) | |
3331 | && strcmp (TYPE_NAME (a), TYPE_NAME (b)) == 0) | |
3332 | return 1; | |
3333 | ||
3334 | /* Check if identical after resolving typedefs. */ | |
3335 | if (a == b) | |
3336 | return 1; | |
3337 | ||
9ce98649 TT |
3338 | /* Two function types are equal if their argument and return types |
3339 | are equal. */ | |
3340 | if (TYPE_CODE (a) == TYPE_CODE_FUNC) | |
3341 | { | |
3342 | int i; | |
3343 | ||
3344 | if (TYPE_NFIELDS (a) != TYPE_NFIELDS (b)) | |
3345 | return 0; | |
3346 | ||
3347 | if (!types_equal (TYPE_TARGET_TYPE (a), TYPE_TARGET_TYPE (b))) | |
3348 | return 0; | |
3349 | ||
3350 | for (i = 0; i < TYPE_NFIELDS (a); ++i) | |
3351 | if (!types_equal (TYPE_FIELD_TYPE (a, i), TYPE_FIELD_TYPE (b, i))) | |
3352 | return 0; | |
3353 | ||
3354 | return 1; | |
3355 | } | |
3356 | ||
7062b0a0 SW |
3357 | return 0; |
3358 | } | |
ca092b61 DE |
3359 | \f |
3360 | /* Deep comparison of types. */ | |
3361 | ||
3362 | /* An entry in the type-equality bcache. */ | |
3363 | ||
3364 | typedef struct type_equality_entry | |
3365 | { | |
3366 | struct type *type1, *type2; | |
3367 | } type_equality_entry_d; | |
3368 | ||
3369 | DEF_VEC_O (type_equality_entry_d); | |
3370 | ||
3371 | /* A helper function to compare two strings. Returns 1 if they are | |
3372 | the same, 0 otherwise. Handles NULLs properly. */ | |
3373 | ||
3374 | static int | |
3375 | compare_maybe_null_strings (const char *s, const char *t) | |
3376 | { | |
3377 | if (s == NULL && t != NULL) | |
3378 | return 0; | |
3379 | else if (s != NULL && t == NULL) | |
3380 | return 0; | |
3381 | else if (s == NULL && t== NULL) | |
3382 | return 1; | |
3383 | return strcmp (s, t) == 0; | |
3384 | } | |
3385 | ||
3386 | /* A helper function for check_types_worklist that checks two types for | |
3387 | "deep" equality. Returns non-zero if the types are considered the | |
3388 | same, zero otherwise. */ | |
3389 | ||
3390 | static int | |
3391 | check_types_equal (struct type *type1, struct type *type2, | |
3392 | VEC (type_equality_entry_d) **worklist) | |
3393 | { | |
f168693b SM |
3394 | type1 = check_typedef (type1); |
3395 | type2 = check_typedef (type2); | |
ca092b61 DE |
3396 | |
3397 | if (type1 == type2) | |
3398 | return 1; | |
3399 | ||
3400 | if (TYPE_CODE (type1) != TYPE_CODE (type2) | |
3401 | || TYPE_LENGTH (type1) != TYPE_LENGTH (type2) | |
3402 | || TYPE_UNSIGNED (type1) != TYPE_UNSIGNED (type2) | |
3403 | || TYPE_NOSIGN (type1) != TYPE_NOSIGN (type2) | |
3404 | || TYPE_VARARGS (type1) != TYPE_VARARGS (type2) | |
3405 | || TYPE_VECTOR (type1) != TYPE_VECTOR (type2) | |
3406 | || TYPE_NOTTEXT (type1) != TYPE_NOTTEXT (type2) | |
3407 | || TYPE_INSTANCE_FLAGS (type1) != TYPE_INSTANCE_FLAGS (type2) | |
3408 | || TYPE_NFIELDS (type1) != TYPE_NFIELDS (type2)) | |
3409 | return 0; | |
3410 | ||
3411 | if (!compare_maybe_null_strings (TYPE_TAG_NAME (type1), | |
3412 | TYPE_TAG_NAME (type2))) | |
3413 | return 0; | |
3414 | if (!compare_maybe_null_strings (TYPE_NAME (type1), TYPE_NAME (type2))) | |
3415 | return 0; | |
3416 | ||
3417 | if (TYPE_CODE (type1) == TYPE_CODE_RANGE) | |
3418 | { | |
3419 | if (memcmp (TYPE_RANGE_DATA (type1), TYPE_RANGE_DATA (type2), | |
3420 | sizeof (*TYPE_RANGE_DATA (type1))) != 0) | |
3421 | return 0; | |
3422 | } | |
3423 | else | |
3424 | { | |
3425 | int i; | |
3426 | ||
3427 | for (i = 0; i < TYPE_NFIELDS (type1); ++i) | |
3428 | { | |
3429 | const struct field *field1 = &TYPE_FIELD (type1, i); | |
3430 | const struct field *field2 = &TYPE_FIELD (type2, i); | |
3431 | struct type_equality_entry entry; | |
3432 | ||
3433 | if (FIELD_ARTIFICIAL (*field1) != FIELD_ARTIFICIAL (*field2) | |
3434 | || FIELD_BITSIZE (*field1) != FIELD_BITSIZE (*field2) | |
3435 | || FIELD_LOC_KIND (*field1) != FIELD_LOC_KIND (*field2)) | |
3436 | return 0; | |
3437 | if (!compare_maybe_null_strings (FIELD_NAME (*field1), | |
3438 | FIELD_NAME (*field2))) | |
3439 | return 0; | |
3440 | switch (FIELD_LOC_KIND (*field1)) | |
3441 | { | |
3442 | case FIELD_LOC_KIND_BITPOS: | |
3443 | if (FIELD_BITPOS (*field1) != FIELD_BITPOS (*field2)) | |
3444 | return 0; | |
3445 | break; | |
3446 | case FIELD_LOC_KIND_ENUMVAL: | |
3447 | if (FIELD_ENUMVAL (*field1) != FIELD_ENUMVAL (*field2)) | |
3448 | return 0; | |
3449 | break; | |
3450 | case FIELD_LOC_KIND_PHYSADDR: | |
3451 | if (FIELD_STATIC_PHYSADDR (*field1) | |
3452 | != FIELD_STATIC_PHYSADDR (*field2)) | |
3453 | return 0; | |
3454 | break; | |
3455 | case FIELD_LOC_KIND_PHYSNAME: | |
3456 | if (!compare_maybe_null_strings (FIELD_STATIC_PHYSNAME (*field1), | |
3457 | FIELD_STATIC_PHYSNAME (*field2))) | |
3458 | return 0; | |
3459 | break; | |
3460 | case FIELD_LOC_KIND_DWARF_BLOCK: | |
3461 | { | |
3462 | struct dwarf2_locexpr_baton *block1, *block2; | |
3463 | ||
3464 | block1 = FIELD_DWARF_BLOCK (*field1); | |
3465 | block2 = FIELD_DWARF_BLOCK (*field2); | |
3466 | if (block1->per_cu != block2->per_cu | |
3467 | || block1->size != block2->size | |
3468 | || memcmp (block1->data, block2->data, block1->size) != 0) | |
3469 | return 0; | |
3470 | } | |
3471 | break; | |
3472 | default: | |
3473 | internal_error (__FILE__, __LINE__, _("Unsupported field kind " | |
3474 | "%d by check_types_equal"), | |
3475 | FIELD_LOC_KIND (*field1)); | |
3476 | } | |
3477 | ||
3478 | entry.type1 = FIELD_TYPE (*field1); | |
3479 | entry.type2 = FIELD_TYPE (*field2); | |
3480 | VEC_safe_push (type_equality_entry_d, *worklist, &entry); | |
3481 | } | |
3482 | } | |
3483 | ||
3484 | if (TYPE_TARGET_TYPE (type1) != NULL) | |
3485 | { | |
3486 | struct type_equality_entry entry; | |
3487 | ||
3488 | if (TYPE_TARGET_TYPE (type2) == NULL) | |
3489 | return 0; | |
3490 | ||
3491 | entry.type1 = TYPE_TARGET_TYPE (type1); | |
3492 | entry.type2 = TYPE_TARGET_TYPE (type2); | |
3493 | VEC_safe_push (type_equality_entry_d, *worklist, &entry); | |
3494 | } | |
3495 | else if (TYPE_TARGET_TYPE (type2) != NULL) | |
3496 | return 0; | |
3497 | ||
3498 | return 1; | |
3499 | } | |
3500 | ||
3501 | /* Check types on a worklist for equality. Returns zero if any pair | |
3502 | is not equal, non-zero if they are all considered equal. */ | |
3503 | ||
3504 | static int | |
3505 | check_types_worklist (VEC (type_equality_entry_d) **worklist, | |
3506 | struct bcache *cache) | |
3507 | { | |
3508 | while (!VEC_empty (type_equality_entry_d, *worklist)) | |
3509 | { | |
3510 | struct type_equality_entry entry; | |
3511 | int added; | |
3512 | ||
3513 | entry = *VEC_last (type_equality_entry_d, *worklist); | |
3514 | VEC_pop (type_equality_entry_d, *worklist); | |
3515 | ||
3516 | /* If the type pair has already been visited, we know it is | |
3517 | ok. */ | |
3518 | bcache_full (&entry, sizeof (entry), cache, &added); | |
3519 | if (!added) | |
3520 | continue; | |
3521 | ||
3522 | if (check_types_equal (entry.type1, entry.type2, worklist) == 0) | |
3523 | return 0; | |
3524 | } | |
7062b0a0 | 3525 | |
ca092b61 DE |
3526 | return 1; |
3527 | } | |
3528 | ||
3529 | /* Return non-zero if types TYPE1 and TYPE2 are equal, as determined by a | |
3530 | "deep comparison". Otherwise return zero. */ | |
3531 | ||
3532 | int | |
3533 | types_deeply_equal (struct type *type1, struct type *type2) | |
3534 | { | |
6c63c96a | 3535 | struct gdb_exception except = exception_none; |
ca092b61 DE |
3536 | int result = 0; |
3537 | struct bcache *cache; | |
3538 | VEC (type_equality_entry_d) *worklist = NULL; | |
3539 | struct type_equality_entry entry; | |
3540 | ||
3541 | gdb_assert (type1 != NULL && type2 != NULL); | |
3542 | ||
3543 | /* Early exit for the simple case. */ | |
3544 | if (type1 == type2) | |
3545 | return 1; | |
3546 | ||
3547 | cache = bcache_xmalloc (NULL, NULL); | |
3548 | ||
3549 | entry.type1 = type1; | |
3550 | entry.type2 = type2; | |
3551 | VEC_safe_push (type_equality_entry_d, worklist, &entry); | |
3552 | ||
6c63c96a PA |
3553 | /* check_types_worklist calls several nested helper functions, some |
3554 | of which can raise a GDB exception, so we just check and rethrow | |
3555 | here. If there is a GDB exception, a comparison is not capable | |
3556 | (or trusted), so exit. */ | |
492d29ea | 3557 | TRY |
ca092b61 DE |
3558 | { |
3559 | result = check_types_worklist (&worklist, cache); | |
3560 | } | |
6c63c96a | 3561 | CATCH (ex, RETURN_MASK_ALL) |
492d29ea | 3562 | { |
6c63c96a | 3563 | except = ex; |
492d29ea PA |
3564 | } |
3565 | END_CATCH | |
ca092b61 | 3566 | |
6c63c96a PA |
3567 | bcache_xfree (cache); |
3568 | VEC_free (type_equality_entry_d, worklist); | |
3569 | ||
3570 | /* Rethrow if there was a problem. */ | |
3571 | if (except.reason < 0) | |
3572 | throw_exception (except); | |
3573 | ||
ca092b61 DE |
3574 | return result; |
3575 | } | |
3f2f83dd KB |
3576 | |
3577 | /* Allocated status of type TYPE. Return zero if type TYPE is allocated. | |
3578 | Otherwise return one. */ | |
3579 | ||
3580 | int | |
3581 | type_not_allocated (const struct type *type) | |
3582 | { | |
3583 | struct dynamic_prop *prop = TYPE_ALLOCATED_PROP (type); | |
3584 | ||
3585 | return (prop && TYPE_DYN_PROP_KIND (prop) == PROP_CONST | |
3586 | && !TYPE_DYN_PROP_ADDR (prop)); | |
3587 | } | |
3588 | ||
3589 | /* Associated status of type TYPE. Return zero if type TYPE is associated. | |
3590 | Otherwise return one. */ | |
3591 | ||
3592 | int | |
3593 | type_not_associated (const struct type *type) | |
3594 | { | |
3595 | struct dynamic_prop *prop = TYPE_ASSOCIATED_PROP (type); | |
3596 | ||
3597 | return (prop && TYPE_DYN_PROP_KIND (prop) == PROP_CONST | |
3598 | && !TYPE_DYN_PROP_ADDR (prop)); | |
3599 | } | |
ca092b61 | 3600 | \f |
c906108c SS |
3601 | /* Compare one type (PARM) for compatibility with another (ARG). |
3602 | * PARM is intended to be the parameter type of a function; and | |
3603 | * ARG is the supplied argument's type. This function tests if | |
3604 | * the latter can be converted to the former. | |
da096638 | 3605 | * VALUE is the argument's value or NULL if none (or called recursively) |
c906108c SS |
3606 | * |
3607 | * Return 0 if they are identical types; | |
3608 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 MS |
3609 | * PARM is to ARG. The higher the return value, the worse the match. |
3610 | * Generally the "bad" conversions are all uniformly assigned a 100. */ | |
c906108c | 3611 | |
6403aeea | 3612 | struct rank |
da096638 | 3613 | rank_one_type (struct type *parm, struct type *arg, struct value *value) |
c906108c | 3614 | { |
a9d5ef47 | 3615 | struct rank rank = {0,0}; |
7062b0a0 | 3616 | |
c906108c SS |
3617 | /* Resolve typedefs */ |
3618 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
3619 | parm = check_typedef (parm); | |
3620 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
3621 | arg = check_typedef (arg); | |
3622 | ||
e15c3eb4 | 3623 | if (TYPE_IS_REFERENCE (parm) && value != NULL) |
15c0a2a9 | 3624 | { |
e15c3eb4 KS |
3625 | if (VALUE_LVAL (value) == not_lval) |
3626 | { | |
3627 | /* Rvalues should preferably bind to rvalue references or const | |
3628 | lvalue references. */ | |
3629 | if (TYPE_CODE (parm) == TYPE_CODE_RVALUE_REF) | |
3630 | rank.subrank = REFERENCE_CONVERSION_RVALUE; | |
3631 | else if (TYPE_CONST (TYPE_TARGET_TYPE (parm))) | |
3632 | rank.subrank = REFERENCE_CONVERSION_CONST_LVALUE; | |
3633 | else | |
3634 | return INCOMPATIBLE_TYPE_BADNESS; | |
3635 | return sum_ranks (rank, REFERENCE_CONVERSION_BADNESS); | |
3636 | } | |
3637 | else | |
3638 | { | |
3639 | /* Lvalues should prefer lvalue overloads. */ | |
3640 | if (TYPE_CODE (parm) == TYPE_CODE_RVALUE_REF) | |
3641 | { | |
3642 | rank.subrank = REFERENCE_CONVERSION_RVALUE; | |
3643 | return sum_ranks (rank, REFERENCE_CONVERSION_BADNESS); | |
3644 | } | |
3645 | } | |
15c0a2a9 AV |
3646 | } |
3647 | ||
3648 | if (types_equal (parm, arg)) | |
15c0a2a9 | 3649 | { |
e15c3eb4 KS |
3650 | struct type *t1 = parm; |
3651 | struct type *t2 = arg; | |
15c0a2a9 | 3652 | |
e15c3eb4 KS |
3653 | /* For pointers and references, compare target type. */ |
3654 | if (TYPE_CODE (parm) == TYPE_CODE_PTR || TYPE_IS_REFERENCE (parm)) | |
3655 | { | |
3656 | t1 = TYPE_TARGET_TYPE (parm); | |
3657 | t2 = TYPE_TARGET_TYPE (arg); | |
3658 | } | |
15c0a2a9 | 3659 | |
e15c3eb4 KS |
3660 | /* Make sure they are CV equal, too. */ |
3661 | if (TYPE_CONST (t1) != TYPE_CONST (t2)) | |
3662 | rank.subrank |= CV_CONVERSION_CONST; | |
3663 | if (TYPE_VOLATILE (t1) != TYPE_VOLATILE (t2)) | |
3664 | rank.subrank |= CV_CONVERSION_VOLATILE; | |
3665 | if (rank.subrank != 0) | |
3666 | return sum_ranks (CV_CONVERSION_BADNESS, rank); | |
3667 | return EXACT_MATCH_BADNESS; | |
15c0a2a9 AV |
3668 | } |
3669 | ||
db577aea | 3670 | /* See through references, since we can almost make non-references |
7ba81444 | 3671 | references. */ |
aa006118 AV |
3672 | |
3673 | if (TYPE_IS_REFERENCE (arg)) | |
da096638 | 3674 | return (sum_ranks (rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL), |
6403aeea | 3675 | REFERENCE_CONVERSION_BADNESS)); |
aa006118 | 3676 | if (TYPE_IS_REFERENCE (parm)) |
da096638 | 3677 | return (sum_ranks (rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL), |
6403aeea | 3678 | REFERENCE_CONVERSION_BADNESS)); |
5d161b24 | 3679 | if (overload_debug) |
7ba81444 MS |
3680 | /* Debugging only. */ |
3681 | fprintf_filtered (gdb_stderr, | |
3682 | "------ Arg is %s [%d], parm is %s [%d]\n", | |
3683 | TYPE_NAME (arg), TYPE_CODE (arg), | |
3684 | TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c | 3685 | |
0963b4bd | 3686 | /* x -> y means arg of type x being supplied for parameter of type y. */ |
c906108c SS |
3687 | |
3688 | switch (TYPE_CODE (parm)) | |
3689 | { | |
c5aa993b JM |
3690 | case TYPE_CODE_PTR: |
3691 | switch (TYPE_CODE (arg)) | |
3692 | { | |
3693 | case TYPE_CODE_PTR: | |
7062b0a0 SW |
3694 | |
3695 | /* Allowed pointer conversions are: | |
3696 | (a) pointer to void-pointer conversion. */ | |
3697 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) | |
c5aa993b | 3698 | return VOID_PTR_CONVERSION_BADNESS; |
7062b0a0 SW |
3699 | |
3700 | /* (b) pointer to ancestor-pointer conversion. */ | |
a9d5ef47 SW |
3701 | rank.subrank = distance_to_ancestor (TYPE_TARGET_TYPE (parm), |
3702 | TYPE_TARGET_TYPE (arg), | |
3703 | 0); | |
3704 | if (rank.subrank >= 0) | |
3705 | return sum_ranks (BASE_PTR_CONVERSION_BADNESS, rank); | |
7062b0a0 SW |
3706 | |
3707 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 3708 | case TYPE_CODE_ARRAY: |
e15c3eb4 KS |
3709 | { |
3710 | struct type *t1 = TYPE_TARGET_TYPE (parm); | |
3711 | struct type *t2 = TYPE_TARGET_TYPE (arg); | |
3712 | ||
3713 | if (types_equal (t1, t2)) | |
3714 | { | |
3715 | /* Make sure they are CV equal. */ | |
3716 | if (TYPE_CONST (t1) != TYPE_CONST (t2)) | |
3717 | rank.subrank |= CV_CONVERSION_CONST; | |
3718 | if (TYPE_VOLATILE (t1) != TYPE_VOLATILE (t2)) | |
3719 | rank.subrank |= CV_CONVERSION_VOLATILE; | |
3720 | if (rank.subrank != 0) | |
3721 | return sum_ranks (CV_CONVERSION_BADNESS, rank); | |
3722 | return EXACT_MATCH_BADNESS; | |
3723 | } | |
3724 | return INCOMPATIBLE_TYPE_BADNESS; | |
3725 | } | |
c5aa993b | 3726 | case TYPE_CODE_FUNC: |
da096638 | 3727 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL); |
c5aa993b | 3728 | case TYPE_CODE_INT: |
a451cb65 | 3729 | if (value != NULL && TYPE_CODE (value_type (value)) == TYPE_CODE_INT) |
da096638 | 3730 | { |
a451cb65 KS |
3731 | if (value_as_long (value) == 0) |
3732 | { | |
3733 | /* Null pointer conversion: allow it to be cast to a pointer. | |
3734 | [4.10.1 of C++ standard draft n3290] */ | |
3735 | return NULL_POINTER_CONVERSION_BADNESS; | |
3736 | } | |
3737 | else | |
3738 | { | |
3739 | /* If type checking is disabled, allow the conversion. */ | |
3740 | if (!strict_type_checking) | |
3741 | return NS_INTEGER_POINTER_CONVERSION_BADNESS; | |
3742 | } | |
da096638 KS |
3743 | } |
3744 | /* fall through */ | |
c5aa993b | 3745 | case TYPE_CODE_ENUM: |
4f2aea11 | 3746 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
3747 | case TYPE_CODE_CHAR: |
3748 | case TYPE_CODE_RANGE: | |
3749 | case TYPE_CODE_BOOL: | |
c5aa993b JM |
3750 | default: |
3751 | return INCOMPATIBLE_TYPE_BADNESS; | |
3752 | } | |
3753 | case TYPE_CODE_ARRAY: | |
3754 | switch (TYPE_CODE (arg)) | |
3755 | { | |
3756 | case TYPE_CODE_PTR: | |
3757 | case TYPE_CODE_ARRAY: | |
7ba81444 | 3758 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
da096638 | 3759 | TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
3760 | default: |
3761 | return INCOMPATIBLE_TYPE_BADNESS; | |
3762 | } | |
3763 | case TYPE_CODE_FUNC: | |
3764 | switch (TYPE_CODE (arg)) | |
3765 | { | |
3766 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
da096638 | 3767 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
3768 | default: |
3769 | return INCOMPATIBLE_TYPE_BADNESS; | |
3770 | } | |
3771 | case TYPE_CODE_INT: | |
3772 | switch (TYPE_CODE (arg)) | |
3773 | { | |
3774 | case TYPE_CODE_INT: | |
3775 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
3776 | { | |
3777 | /* Deal with signed, unsigned, and plain chars and | |
7ba81444 | 3778 | signed and unsigned ints. */ |
c5aa993b JM |
3779 | if (TYPE_NOSIGN (parm)) |
3780 | { | |
0963b4bd | 3781 | /* This case only for character types. */ |
7ba81444 | 3782 | if (TYPE_NOSIGN (arg)) |
6403aeea | 3783 | return EXACT_MATCH_BADNESS; /* plain char -> plain char */ |
7ba81444 MS |
3784 | else /* signed/unsigned char -> plain char */ |
3785 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
3786 | } |
3787 | else if (TYPE_UNSIGNED (parm)) | |
3788 | { | |
3789 | if (TYPE_UNSIGNED (arg)) | |
3790 | { | |
7ba81444 MS |
3791 | /* unsigned int -> unsigned int, or |
3792 | unsigned long -> unsigned long */ | |
3793 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
3794 | TYPE_NAME (arg))) | |
6403aeea | 3795 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
3796 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
3797 | "int") | |
3798 | && integer_types_same_name_p (TYPE_NAME (parm), | |
3799 | "long")) | |
3e43a32a MS |
3800 | /* unsigned int -> unsigned long */ |
3801 | return INTEGER_PROMOTION_BADNESS; | |
c5aa993b | 3802 | else |
3e43a32a MS |
3803 | /* unsigned long -> unsigned int */ |
3804 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
3805 | } |
3806 | else | |
3807 | { | |
7ba81444 MS |
3808 | if (integer_types_same_name_p (TYPE_NAME (arg), |
3809 | "long") | |
3810 | && integer_types_same_name_p (TYPE_NAME (parm), | |
3811 | "int")) | |
3e43a32a MS |
3812 | /* signed long -> unsigned int */ |
3813 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b | 3814 | else |
3e43a32a MS |
3815 | /* signed int/long -> unsigned int/long */ |
3816 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
3817 | } |
3818 | } | |
3819 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
3820 | { | |
7ba81444 MS |
3821 | if (integer_types_same_name_p (TYPE_NAME (parm), |
3822 | TYPE_NAME (arg))) | |
6403aeea | 3823 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
3824 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
3825 | "int") | |
3826 | && integer_types_same_name_p (TYPE_NAME (parm), | |
3827 | "long")) | |
c5aa993b JM |
3828 | return INTEGER_PROMOTION_BADNESS; |
3829 | else | |
1c5cb38e | 3830 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3831 | } |
3832 | else | |
1c5cb38e | 3833 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3834 | } |
3835 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
3836 | return INTEGER_PROMOTION_BADNESS; | |
3837 | else | |
1c5cb38e | 3838 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b | 3839 | case TYPE_CODE_ENUM: |
4f2aea11 | 3840 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
3841 | case TYPE_CODE_CHAR: |
3842 | case TYPE_CODE_RANGE: | |
3843 | case TYPE_CODE_BOOL: | |
3d567982 TT |
3844 | if (TYPE_DECLARED_CLASS (arg)) |
3845 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b JM |
3846 | return INTEGER_PROMOTION_BADNESS; |
3847 | case TYPE_CODE_FLT: | |
3848 | return INT_FLOAT_CONVERSION_BADNESS; | |
3849 | case TYPE_CODE_PTR: | |
3850 | return NS_POINTER_CONVERSION_BADNESS; | |
3851 | default: | |
3852 | return INCOMPATIBLE_TYPE_BADNESS; | |
3853 | } | |
3854 | break; | |
3855 | case TYPE_CODE_ENUM: | |
3856 | switch (TYPE_CODE (arg)) | |
3857 | { | |
3858 | case TYPE_CODE_INT: | |
3859 | case TYPE_CODE_CHAR: | |
3860 | case TYPE_CODE_RANGE: | |
3861 | case TYPE_CODE_BOOL: | |
3862 | case TYPE_CODE_ENUM: | |
3d567982 TT |
3863 | if (TYPE_DECLARED_CLASS (parm) || TYPE_DECLARED_CLASS (arg)) |
3864 | return INCOMPATIBLE_TYPE_BADNESS; | |
1c5cb38e | 3865 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3866 | case TYPE_CODE_FLT: |
3867 | return INT_FLOAT_CONVERSION_BADNESS; | |
3868 | default: | |
3869 | return INCOMPATIBLE_TYPE_BADNESS; | |
3870 | } | |
3871 | break; | |
3872 | case TYPE_CODE_CHAR: | |
3873 | switch (TYPE_CODE (arg)) | |
3874 | { | |
3875 | case TYPE_CODE_RANGE: | |
3876 | case TYPE_CODE_BOOL: | |
3877 | case TYPE_CODE_ENUM: | |
3d567982 TT |
3878 | if (TYPE_DECLARED_CLASS (arg)) |
3879 | return INCOMPATIBLE_TYPE_BADNESS; | |
1c5cb38e | 3880 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3881 | case TYPE_CODE_FLT: |
3882 | return INT_FLOAT_CONVERSION_BADNESS; | |
3883 | case TYPE_CODE_INT: | |
3884 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
1c5cb38e | 3885 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3886 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) |
3887 | return INTEGER_PROMOTION_BADNESS; | |
3888 | /* >>> !! else fall through !! <<< */ | |
3889 | case TYPE_CODE_CHAR: | |
7ba81444 MS |
3890 | /* Deal with signed, unsigned, and plain chars for C++ and |
3891 | with int cases falling through from previous case. */ | |
c5aa993b JM |
3892 | if (TYPE_NOSIGN (parm)) |
3893 | { | |
3894 | if (TYPE_NOSIGN (arg)) | |
6403aeea | 3895 | return EXACT_MATCH_BADNESS; |
c5aa993b | 3896 | else |
1c5cb38e | 3897 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3898 | } |
3899 | else if (TYPE_UNSIGNED (parm)) | |
3900 | { | |
3901 | if (TYPE_UNSIGNED (arg)) | |
6403aeea | 3902 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3903 | else |
3904 | return INTEGER_PROMOTION_BADNESS; | |
3905 | } | |
3906 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
6403aeea | 3907 | return EXACT_MATCH_BADNESS; |
c5aa993b | 3908 | else |
1c5cb38e | 3909 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3910 | default: |
3911 | return INCOMPATIBLE_TYPE_BADNESS; | |
3912 | } | |
3913 | break; | |
3914 | case TYPE_CODE_RANGE: | |
3915 | switch (TYPE_CODE (arg)) | |
3916 | { | |
3917 | case TYPE_CODE_INT: | |
3918 | case TYPE_CODE_CHAR: | |
3919 | case TYPE_CODE_RANGE: | |
3920 | case TYPE_CODE_BOOL: | |
3921 | case TYPE_CODE_ENUM: | |
1c5cb38e | 3922 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3923 | case TYPE_CODE_FLT: |
3924 | return INT_FLOAT_CONVERSION_BADNESS; | |
3925 | default: | |
3926 | return INCOMPATIBLE_TYPE_BADNESS; | |
3927 | } | |
3928 | break; | |
3929 | case TYPE_CODE_BOOL: | |
3930 | switch (TYPE_CODE (arg)) | |
3931 | { | |
5b4f6e25 KS |
3932 | /* n3290 draft, section 4.12.1 (conv.bool): |
3933 | ||
3934 | "A prvalue of arithmetic, unscoped enumeration, pointer, or | |
3935 | pointer to member type can be converted to a prvalue of type | |
3936 | bool. A zero value, null pointer value, or null member pointer | |
3937 | value is converted to false; any other value is converted to | |
3938 | true. A prvalue of type std::nullptr_t can be converted to a | |
3939 | prvalue of type bool; the resulting value is false." */ | |
c5aa993b JM |
3940 | case TYPE_CODE_INT: |
3941 | case TYPE_CODE_CHAR: | |
c5aa993b JM |
3942 | case TYPE_CODE_ENUM: |
3943 | case TYPE_CODE_FLT: | |
5b4f6e25 | 3944 | case TYPE_CODE_MEMBERPTR: |
c5aa993b | 3945 | case TYPE_CODE_PTR: |
5b4f6e25 KS |
3946 | return BOOL_CONVERSION_BADNESS; |
3947 | case TYPE_CODE_RANGE: | |
3948 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 3949 | case TYPE_CODE_BOOL: |
6403aeea | 3950 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3951 | default: |
3952 | return INCOMPATIBLE_TYPE_BADNESS; | |
3953 | } | |
3954 | break; | |
3955 | case TYPE_CODE_FLT: | |
3956 | switch (TYPE_CODE (arg)) | |
3957 | { | |
3958 | case TYPE_CODE_FLT: | |
3959 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
3960 | return FLOAT_PROMOTION_BADNESS; | |
3961 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
6403aeea | 3962 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3963 | else |
3964 | return FLOAT_CONVERSION_BADNESS; | |
3965 | case TYPE_CODE_INT: | |
3966 | case TYPE_CODE_BOOL: | |
3967 | case TYPE_CODE_ENUM: | |
3968 | case TYPE_CODE_RANGE: | |
3969 | case TYPE_CODE_CHAR: | |
3970 | return INT_FLOAT_CONVERSION_BADNESS; | |
3971 | default: | |
3972 | return INCOMPATIBLE_TYPE_BADNESS; | |
3973 | } | |
3974 | break; | |
3975 | case TYPE_CODE_COMPLEX: | |
3976 | switch (TYPE_CODE (arg)) | |
7ba81444 | 3977 | { /* Strictly not needed for C++, but... */ |
c5aa993b JM |
3978 | case TYPE_CODE_FLT: |
3979 | return FLOAT_PROMOTION_BADNESS; | |
3980 | case TYPE_CODE_COMPLEX: | |
6403aeea | 3981 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3982 | default: |
3983 | return INCOMPATIBLE_TYPE_BADNESS; | |
3984 | } | |
3985 | break; | |
3986 | case TYPE_CODE_STRUCT: | |
c5aa993b JM |
3987 | switch (TYPE_CODE (arg)) |
3988 | { | |
3989 | case TYPE_CODE_STRUCT: | |
3990 | /* Check for derivation */ | |
a9d5ef47 SW |
3991 | rank.subrank = distance_to_ancestor (parm, arg, 0); |
3992 | if (rank.subrank >= 0) | |
3993 | return sum_ranks (BASE_CONVERSION_BADNESS, rank); | |
c5aa993b JM |
3994 | /* else fall through */ |
3995 | default: | |
3996 | return INCOMPATIBLE_TYPE_BADNESS; | |
3997 | } | |
3998 | break; | |
3999 | case TYPE_CODE_UNION: | |
4000 | switch (TYPE_CODE (arg)) | |
4001 | { | |
4002 | case TYPE_CODE_UNION: | |
4003 | default: | |
4004 | return INCOMPATIBLE_TYPE_BADNESS; | |
4005 | } | |
4006 | break; | |
0d5de010 | 4007 | case TYPE_CODE_MEMBERPTR: |
c5aa993b JM |
4008 | switch (TYPE_CODE (arg)) |
4009 | { | |
4010 | default: | |
4011 | return INCOMPATIBLE_TYPE_BADNESS; | |
4012 | } | |
4013 | break; | |
4014 | case TYPE_CODE_METHOD: | |
4015 | switch (TYPE_CODE (arg)) | |
4016 | { | |
4017 | ||
4018 | default: | |
4019 | return INCOMPATIBLE_TYPE_BADNESS; | |
4020 | } | |
4021 | break; | |
4022 | case TYPE_CODE_REF: | |
4023 | switch (TYPE_CODE (arg)) | |
4024 | { | |
4025 | ||
4026 | default: | |
4027 | return INCOMPATIBLE_TYPE_BADNESS; | |
4028 | } | |
4029 | ||
4030 | break; | |
4031 | case TYPE_CODE_SET: | |
4032 | switch (TYPE_CODE (arg)) | |
4033 | { | |
4034 | /* Not in C++ */ | |
4035 | case TYPE_CODE_SET: | |
7ba81444 | 4036 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), |
da096638 | 4037 | TYPE_FIELD_TYPE (arg, 0), NULL); |
c5aa993b JM |
4038 | default: |
4039 | return INCOMPATIBLE_TYPE_BADNESS; | |
4040 | } | |
4041 | break; | |
4042 | case TYPE_CODE_VOID: | |
4043 | default: | |
4044 | return INCOMPATIBLE_TYPE_BADNESS; | |
4045 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
4046 | } |
4047 | ||
0963b4bd | 4048 | /* End of functions for overload resolution. */ |
5212577a DE |
4049 | \f |
4050 | /* Routines to pretty-print types. */ | |
c906108c | 4051 | |
c906108c | 4052 | static void |
fba45db2 | 4053 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
4054 | { |
4055 | int bitno; | |
4056 | ||
4057 | for (bitno = 0; bitno < nbits; bitno++) | |
4058 | { | |
4059 | if ((bitno % 8) == 0) | |
4060 | { | |
4061 | puts_filtered (" "); | |
4062 | } | |
4063 | if (B_TST (bits, bitno)) | |
a3f17187 | 4064 | printf_filtered (("1")); |
c906108c | 4065 | else |
a3f17187 | 4066 | printf_filtered (("0")); |
c906108c SS |
4067 | } |
4068 | } | |
4069 | ||
ad2f7632 | 4070 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
4071 | include it since we may get into a infinitely recursive |
4072 | situation. */ | |
c906108c SS |
4073 | |
4074 | static void | |
4c9e8482 | 4075 | print_args (struct field *args, int nargs, int spaces) |
c906108c SS |
4076 | { |
4077 | if (args != NULL) | |
4078 | { | |
ad2f7632 DJ |
4079 | int i; |
4080 | ||
4081 | for (i = 0; i < nargs; i++) | |
4c9e8482 DE |
4082 | { |
4083 | printfi_filtered (spaces, "[%d] name '%s'\n", i, | |
4084 | args[i].name != NULL ? args[i].name : "<NULL>"); | |
4085 | recursive_dump_type (args[i].type, spaces + 2); | |
4086 | } | |
c906108c SS |
4087 | } |
4088 | } | |
4089 | ||
d6a843b5 JK |
4090 | int |
4091 | field_is_static (struct field *f) | |
4092 | { | |
4093 | /* "static" fields are the fields whose location is not relative | |
4094 | to the address of the enclosing struct. It would be nice to | |
4095 | have a dedicated flag that would be set for static fields when | |
4096 | the type is being created. But in practice, checking the field | |
254e6b9e | 4097 | loc_kind should give us an accurate answer. */ |
d6a843b5 JK |
4098 | return (FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSNAME |
4099 | || FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSADDR); | |
4100 | } | |
4101 | ||
c906108c | 4102 | static void |
fba45db2 | 4103 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
4104 | { |
4105 | int method_idx; | |
4106 | int overload_idx; | |
4107 | struct fn_field *f; | |
4108 | ||
4109 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 4110 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
4111 | printf_filtered ("\n"); |
4112 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
4113 | { | |
4114 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
4115 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
4116 | method_idx, | |
4117 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
4118 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
4119 | gdb_stdout); | |
a3f17187 | 4120 | printf_filtered (_(") length %d\n"), |
c906108c SS |
4121 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
4122 | for (overload_idx = 0; | |
4123 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
4124 | overload_idx++) | |
4125 | { | |
4126 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
4127 | overload_idx, | |
4128 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
4129 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
4130 | gdb_stdout); | |
c906108c SS |
4131 | printf_filtered (")\n"); |
4132 | printfi_filtered (spaces + 8, "type "); | |
7ba81444 MS |
4133 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
4134 | gdb_stdout); | |
c906108c SS |
4135 | printf_filtered ("\n"); |
4136 | ||
4137 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
4138 | spaces + 8 + 2); | |
4139 | ||
4140 | printfi_filtered (spaces + 8, "args "); | |
7ba81444 MS |
4141 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
4142 | gdb_stdout); | |
c906108c | 4143 | printf_filtered ("\n"); |
4c9e8482 DE |
4144 | print_args (TYPE_FN_FIELD_ARGS (f, overload_idx), |
4145 | TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, overload_idx)), | |
4146 | spaces + 8 + 2); | |
c906108c | 4147 | printfi_filtered (spaces + 8, "fcontext "); |
d4f3574e SS |
4148 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
4149 | gdb_stdout); | |
c906108c SS |
4150 | printf_filtered ("\n"); |
4151 | ||
4152 | printfi_filtered (spaces + 8, "is_const %d\n", | |
4153 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
4154 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
4155 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
4156 | printfi_filtered (spaces + 8, "is_private %d\n", | |
4157 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
4158 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
4159 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
4160 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
4161 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
4162 | printfi_filtered (spaces + 8, "voffset %u\n", | |
4163 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
4164 | } | |
4165 | } | |
4166 | } | |
4167 | ||
4168 | static void | |
fba45db2 | 4169 | print_cplus_stuff (struct type *type, int spaces) |
c906108c | 4170 | { |
ae6ae975 DE |
4171 | printfi_filtered (spaces, "vptr_fieldno %d\n", TYPE_VPTR_FIELDNO (type)); |
4172 | printfi_filtered (spaces, "vptr_basetype "); | |
4173 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); | |
4174 | puts_filtered ("\n"); | |
4175 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
4176 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
4177 | ||
c906108c SS |
4178 | printfi_filtered (spaces, "n_baseclasses %d\n", |
4179 | TYPE_N_BASECLASSES (type)); | |
4180 | printfi_filtered (spaces, "nfn_fields %d\n", | |
4181 | TYPE_NFN_FIELDS (type)); | |
c906108c SS |
4182 | if (TYPE_N_BASECLASSES (type) > 0) |
4183 | { | |
4184 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
4185 | TYPE_N_BASECLASSES (type)); | |
7ba81444 MS |
4186 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
4187 | gdb_stdout); | |
c906108c SS |
4188 | printf_filtered (")"); |
4189 | ||
4190 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
4191 | TYPE_N_BASECLASSES (type)); | |
4192 | puts_filtered ("\n"); | |
4193 | } | |
4194 | if (TYPE_NFIELDS (type) > 0) | |
4195 | { | |
4196 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
4197 | { | |
7ba81444 MS |
4198 | printfi_filtered (spaces, |
4199 | "private_field_bits (%d bits at *", | |
c906108c | 4200 | TYPE_NFIELDS (type)); |
7ba81444 MS |
4201 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
4202 | gdb_stdout); | |
c906108c SS |
4203 | printf_filtered (")"); |
4204 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
4205 | TYPE_NFIELDS (type)); | |
4206 | puts_filtered ("\n"); | |
4207 | } | |
4208 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
4209 | { | |
7ba81444 MS |
4210 | printfi_filtered (spaces, |
4211 | "protected_field_bits (%d bits at *", | |
c906108c | 4212 | TYPE_NFIELDS (type)); |
7ba81444 MS |
4213 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
4214 | gdb_stdout); | |
c906108c SS |
4215 | printf_filtered (")"); |
4216 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
4217 | TYPE_NFIELDS (type)); | |
4218 | puts_filtered ("\n"); | |
4219 | } | |
4220 | } | |
4221 | if (TYPE_NFN_FIELDS (type) > 0) | |
4222 | { | |
4223 | dump_fn_fieldlists (type, spaces); | |
4224 | } | |
4225 | } | |
4226 | ||
b4ba55a1 JB |
4227 | /* Print the contents of the TYPE's type_specific union, assuming that |
4228 | its type-specific kind is TYPE_SPECIFIC_GNAT_STUFF. */ | |
4229 | ||
4230 | static void | |
4231 | print_gnat_stuff (struct type *type, int spaces) | |
4232 | { | |
4233 | struct type *descriptive_type = TYPE_DESCRIPTIVE_TYPE (type); | |
4234 | ||
8cd00c59 PMR |
4235 | if (descriptive_type == NULL) |
4236 | printfi_filtered (spaces + 2, "no descriptive type\n"); | |
4237 | else | |
4238 | { | |
4239 | printfi_filtered (spaces + 2, "descriptive type\n"); | |
4240 | recursive_dump_type (descriptive_type, spaces + 4); | |
4241 | } | |
b4ba55a1 JB |
4242 | } |
4243 | ||
c906108c SS |
4244 | static struct obstack dont_print_type_obstack; |
4245 | ||
4246 | void | |
fba45db2 | 4247 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
4248 | { |
4249 | int idx; | |
4250 | ||
4251 | if (spaces == 0) | |
4252 | obstack_begin (&dont_print_type_obstack, 0); | |
4253 | ||
4254 | if (TYPE_NFIELDS (type) > 0 | |
b4ba55a1 | 4255 | || (HAVE_CPLUS_STRUCT (type) && TYPE_NFN_FIELDS (type) > 0)) |
c906108c SS |
4256 | { |
4257 | struct type **first_dont_print | |
7ba81444 | 4258 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 4259 | |
7ba81444 MS |
4260 | int i = (struct type **) |
4261 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
4262 | |
4263 | while (--i >= 0) | |
4264 | { | |
4265 | if (type == first_dont_print[i]) | |
4266 | { | |
4267 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 4268 | gdb_print_host_address (type, gdb_stdout); |
a3f17187 | 4269 | printf_filtered (_(" <same as already seen type>\n")); |
c906108c SS |
4270 | return; |
4271 | } | |
4272 | } | |
4273 | ||
4274 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
4275 | } | |
4276 | ||
4277 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 4278 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
4279 | printf_filtered ("\n"); |
4280 | printfi_filtered (spaces, "name '%s' (", | |
4281 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 4282 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c | 4283 | printf_filtered (")\n"); |
e9e79dd9 FF |
4284 | printfi_filtered (spaces, "tagname '%s' (", |
4285 | TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>"); | |
4286 | gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); | |
4287 | printf_filtered (")\n"); | |
c906108c SS |
4288 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
4289 | switch (TYPE_CODE (type)) | |
4290 | { | |
c5aa993b JM |
4291 | case TYPE_CODE_UNDEF: |
4292 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
4293 | break; | |
4294 | case TYPE_CODE_PTR: | |
4295 | printf_filtered ("(TYPE_CODE_PTR)"); | |
4296 | break; | |
4297 | case TYPE_CODE_ARRAY: | |
4298 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
4299 | break; | |
4300 | case TYPE_CODE_STRUCT: | |
4301 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
4302 | break; | |
4303 | case TYPE_CODE_UNION: | |
4304 | printf_filtered ("(TYPE_CODE_UNION)"); | |
4305 | break; | |
4306 | case TYPE_CODE_ENUM: | |
4307 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
4308 | break; | |
4f2aea11 MK |
4309 | case TYPE_CODE_FLAGS: |
4310 | printf_filtered ("(TYPE_CODE_FLAGS)"); | |
4311 | break; | |
c5aa993b JM |
4312 | case TYPE_CODE_FUNC: |
4313 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
4314 | break; | |
4315 | case TYPE_CODE_INT: | |
4316 | printf_filtered ("(TYPE_CODE_INT)"); | |
4317 | break; | |
4318 | case TYPE_CODE_FLT: | |
4319 | printf_filtered ("(TYPE_CODE_FLT)"); | |
4320 | break; | |
4321 | case TYPE_CODE_VOID: | |
4322 | printf_filtered ("(TYPE_CODE_VOID)"); | |
4323 | break; | |
4324 | case TYPE_CODE_SET: | |
4325 | printf_filtered ("(TYPE_CODE_SET)"); | |
4326 | break; | |
4327 | case TYPE_CODE_RANGE: | |
4328 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
4329 | break; | |
4330 | case TYPE_CODE_STRING: | |
4331 | printf_filtered ("(TYPE_CODE_STRING)"); | |
4332 | break; | |
4333 | case TYPE_CODE_ERROR: | |
4334 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
4335 | break; | |
0d5de010 DJ |
4336 | case TYPE_CODE_MEMBERPTR: |
4337 | printf_filtered ("(TYPE_CODE_MEMBERPTR)"); | |
4338 | break; | |
4339 | case TYPE_CODE_METHODPTR: | |
4340 | printf_filtered ("(TYPE_CODE_METHODPTR)"); | |
c5aa993b JM |
4341 | break; |
4342 | case TYPE_CODE_METHOD: | |
4343 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
4344 | break; | |
4345 | case TYPE_CODE_REF: | |
4346 | printf_filtered ("(TYPE_CODE_REF)"); | |
4347 | break; | |
4348 | case TYPE_CODE_CHAR: | |
4349 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
4350 | break; | |
4351 | case TYPE_CODE_BOOL: | |
4352 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
4353 | break; | |
e9e79dd9 FF |
4354 | case TYPE_CODE_COMPLEX: |
4355 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
4356 | break; | |
c5aa993b JM |
4357 | case TYPE_CODE_TYPEDEF: |
4358 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
4359 | break; | |
5c4e30ca DC |
4360 | case TYPE_CODE_NAMESPACE: |
4361 | printf_filtered ("(TYPE_CODE_NAMESPACE)"); | |
4362 | break; | |
c5aa993b JM |
4363 | default: |
4364 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
4365 | break; | |
c906108c SS |
4366 | } |
4367 | puts_filtered ("\n"); | |
4368 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
e9bb382b UW |
4369 | if (TYPE_OBJFILE_OWNED (type)) |
4370 | { | |
4371 | printfi_filtered (spaces, "objfile "); | |
4372 | gdb_print_host_address (TYPE_OWNER (type).objfile, gdb_stdout); | |
4373 | } | |
4374 | else | |
4375 | { | |
4376 | printfi_filtered (spaces, "gdbarch "); | |
4377 | gdb_print_host_address (TYPE_OWNER (type).gdbarch, gdb_stdout); | |
4378 | } | |
c906108c SS |
4379 | printf_filtered ("\n"); |
4380 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 4381 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
4382 | printf_filtered ("\n"); |
4383 | if (TYPE_TARGET_TYPE (type) != NULL) | |
4384 | { | |
4385 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
4386 | } | |
4387 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 4388 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
4389 | printf_filtered ("\n"); |
4390 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 4391 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 4392 | printf_filtered ("\n"); |
2fdde8f8 DJ |
4393 | printfi_filtered (spaces, "type_chain "); |
4394 | gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); | |
e9e79dd9 | 4395 | printf_filtered ("\n"); |
7ba81444 MS |
4396 | printfi_filtered (spaces, "instance_flags 0x%x", |
4397 | TYPE_INSTANCE_FLAGS (type)); | |
2fdde8f8 DJ |
4398 | if (TYPE_CONST (type)) |
4399 | { | |
a9ff5f12 | 4400 | puts_filtered (" TYPE_CONST"); |
2fdde8f8 DJ |
4401 | } |
4402 | if (TYPE_VOLATILE (type)) | |
4403 | { | |
a9ff5f12 | 4404 | puts_filtered (" TYPE_VOLATILE"); |
2fdde8f8 DJ |
4405 | } |
4406 | if (TYPE_CODE_SPACE (type)) | |
4407 | { | |
a9ff5f12 | 4408 | puts_filtered (" TYPE_CODE_SPACE"); |
2fdde8f8 DJ |
4409 | } |
4410 | if (TYPE_DATA_SPACE (type)) | |
4411 | { | |
a9ff5f12 | 4412 | puts_filtered (" TYPE_DATA_SPACE"); |
2fdde8f8 | 4413 | } |
8b2dbe47 KB |
4414 | if (TYPE_ADDRESS_CLASS_1 (type)) |
4415 | { | |
a9ff5f12 | 4416 | puts_filtered (" TYPE_ADDRESS_CLASS_1"); |
8b2dbe47 KB |
4417 | } |
4418 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
4419 | { | |
a9ff5f12 | 4420 | puts_filtered (" TYPE_ADDRESS_CLASS_2"); |
8b2dbe47 | 4421 | } |
06d66ee9 TT |
4422 | if (TYPE_RESTRICT (type)) |
4423 | { | |
a9ff5f12 | 4424 | puts_filtered (" TYPE_RESTRICT"); |
06d66ee9 | 4425 | } |
a2c2acaf MW |
4426 | if (TYPE_ATOMIC (type)) |
4427 | { | |
a9ff5f12 | 4428 | puts_filtered (" TYPE_ATOMIC"); |
a2c2acaf | 4429 | } |
2fdde8f8 | 4430 | puts_filtered ("\n"); |
876cecd0 TT |
4431 | |
4432 | printfi_filtered (spaces, "flags"); | |
762a036f | 4433 | if (TYPE_UNSIGNED (type)) |
c906108c | 4434 | { |
a9ff5f12 | 4435 | puts_filtered (" TYPE_UNSIGNED"); |
c906108c | 4436 | } |
762a036f FF |
4437 | if (TYPE_NOSIGN (type)) |
4438 | { | |
a9ff5f12 | 4439 | puts_filtered (" TYPE_NOSIGN"); |
762a036f FF |
4440 | } |
4441 | if (TYPE_STUB (type)) | |
c906108c | 4442 | { |
a9ff5f12 | 4443 | puts_filtered (" TYPE_STUB"); |
c906108c | 4444 | } |
762a036f FF |
4445 | if (TYPE_TARGET_STUB (type)) |
4446 | { | |
a9ff5f12 | 4447 | puts_filtered (" TYPE_TARGET_STUB"); |
762a036f | 4448 | } |
762a036f FF |
4449 | if (TYPE_PROTOTYPED (type)) |
4450 | { | |
a9ff5f12 | 4451 | puts_filtered (" TYPE_PROTOTYPED"); |
762a036f FF |
4452 | } |
4453 | if (TYPE_INCOMPLETE (type)) | |
4454 | { | |
a9ff5f12 | 4455 | puts_filtered (" TYPE_INCOMPLETE"); |
762a036f | 4456 | } |
762a036f FF |
4457 | if (TYPE_VARARGS (type)) |
4458 | { | |
a9ff5f12 | 4459 | puts_filtered (" TYPE_VARARGS"); |
762a036f | 4460 | } |
f5f8a009 EZ |
4461 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
4462 | an attribute for the array type, which tells whether or not we | |
4463 | have a vector, instead of a regular array. */ | |
4464 | if (TYPE_VECTOR (type)) | |
4465 | { | |
a9ff5f12 | 4466 | puts_filtered (" TYPE_VECTOR"); |
f5f8a009 | 4467 | } |
876cecd0 TT |
4468 | if (TYPE_FIXED_INSTANCE (type)) |
4469 | { | |
4470 | puts_filtered (" TYPE_FIXED_INSTANCE"); | |
4471 | } | |
4472 | if (TYPE_STUB_SUPPORTED (type)) | |
4473 | { | |
4474 | puts_filtered (" TYPE_STUB_SUPPORTED"); | |
4475 | } | |
4476 | if (TYPE_NOTTEXT (type)) | |
4477 | { | |
4478 | puts_filtered (" TYPE_NOTTEXT"); | |
4479 | } | |
c906108c SS |
4480 | puts_filtered ("\n"); |
4481 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 4482 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
4483 | puts_filtered ("\n"); |
4484 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
4485 | { | |
14e75d8e JK |
4486 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) |
4487 | printfi_filtered (spaces + 2, | |
4488 | "[%d] enumval %s type ", | |
4489 | idx, plongest (TYPE_FIELD_ENUMVAL (type, idx))); | |
4490 | else | |
4491 | printfi_filtered (spaces + 2, | |
6b850546 DT |
4492 | "[%d] bitpos %s bitsize %d type ", |
4493 | idx, plongest (TYPE_FIELD_BITPOS (type, idx)), | |
14e75d8e | 4494 | TYPE_FIELD_BITSIZE (type, idx)); |
d4f3574e | 4495 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
4496 | printf_filtered (" name '%s' (", |
4497 | TYPE_FIELD_NAME (type, idx) != NULL | |
4498 | ? TYPE_FIELD_NAME (type, idx) | |
4499 | : "<NULL>"); | |
d4f3574e | 4500 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
4501 | printf_filtered (")\n"); |
4502 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
4503 | { | |
4504 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
4505 | } | |
4506 | } | |
43bbcdc2 PH |
4507 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
4508 | { | |
4509 | printfi_filtered (spaces, "low %s%s high %s%s\n", | |
4510 | plongest (TYPE_LOW_BOUND (type)), | |
4511 | TYPE_LOW_BOUND_UNDEFINED (type) ? " (undefined)" : "", | |
4512 | plongest (TYPE_HIGH_BOUND (type)), | |
3e43a32a MS |
4513 | TYPE_HIGH_BOUND_UNDEFINED (type) |
4514 | ? " (undefined)" : ""); | |
43bbcdc2 | 4515 | } |
c906108c | 4516 | |
b4ba55a1 JB |
4517 | switch (TYPE_SPECIFIC_FIELD (type)) |
4518 | { | |
4519 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
4520 | printfi_filtered (spaces, "cplus_stuff "); | |
4521 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), | |
4522 | gdb_stdout); | |
4523 | puts_filtered ("\n"); | |
4524 | print_cplus_stuff (type, spaces); | |
4525 | break; | |
8da61cc4 | 4526 | |
b4ba55a1 JB |
4527 | case TYPE_SPECIFIC_GNAT_STUFF: |
4528 | printfi_filtered (spaces, "gnat_stuff "); | |
4529 | gdb_print_host_address (TYPE_GNAT_SPECIFIC (type), gdb_stdout); | |
4530 | puts_filtered ("\n"); | |
4531 | print_gnat_stuff (type, spaces); | |
4532 | break; | |
701c159d | 4533 | |
b4ba55a1 JB |
4534 | case TYPE_SPECIFIC_FLOATFORMAT: |
4535 | printfi_filtered (spaces, "floatformat "); | |
4536 | if (TYPE_FLOATFORMAT (type) == NULL) | |
4537 | puts_filtered ("(null)"); | |
4538 | else | |
4539 | { | |
4540 | puts_filtered ("{ "); | |
4541 | if (TYPE_FLOATFORMAT (type)[0] == NULL | |
4542 | || TYPE_FLOATFORMAT (type)[0]->name == NULL) | |
4543 | puts_filtered ("(null)"); | |
4544 | else | |
4545 | puts_filtered (TYPE_FLOATFORMAT (type)[0]->name); | |
4546 | ||
4547 | puts_filtered (", "); | |
4548 | if (TYPE_FLOATFORMAT (type)[1] == NULL | |
4549 | || TYPE_FLOATFORMAT (type)[1]->name == NULL) | |
4550 | puts_filtered ("(null)"); | |
4551 | else | |
4552 | puts_filtered (TYPE_FLOATFORMAT (type)[1]->name); | |
4553 | ||
4554 | puts_filtered (" }"); | |
4555 | } | |
4556 | puts_filtered ("\n"); | |
4557 | break; | |
c906108c | 4558 | |
b6cdc2c1 | 4559 | case TYPE_SPECIFIC_FUNC: |
b4ba55a1 JB |
4560 | printfi_filtered (spaces, "calling_convention %d\n", |
4561 | TYPE_CALLING_CONVENTION (type)); | |
b6cdc2c1 | 4562 | /* tail_call_list is not printed. */ |
b4ba55a1 | 4563 | break; |
09e2d7c7 DE |
4564 | |
4565 | case TYPE_SPECIFIC_SELF_TYPE: | |
4566 | printfi_filtered (spaces, "self_type "); | |
4567 | gdb_print_host_address (TYPE_SELF_TYPE (type), gdb_stdout); | |
4568 | puts_filtered ("\n"); | |
4569 | break; | |
c906108c | 4570 | } |
b4ba55a1 | 4571 | |
c906108c SS |
4572 | if (spaces == 0) |
4573 | obstack_free (&dont_print_type_obstack, NULL); | |
4574 | } | |
5212577a | 4575 | \f |
ae5a43e0 DJ |
4576 | /* Trivial helpers for the libiberty hash table, for mapping one |
4577 | type to another. */ | |
4578 | ||
4579 | struct type_pair | |
4580 | { | |
fe978cb0 | 4581 | struct type *old, *newobj; |
ae5a43e0 DJ |
4582 | }; |
4583 | ||
4584 | static hashval_t | |
4585 | type_pair_hash (const void *item) | |
4586 | { | |
9a3c8263 | 4587 | const struct type_pair *pair = (const struct type_pair *) item; |
d8734c88 | 4588 | |
ae5a43e0 DJ |
4589 | return htab_hash_pointer (pair->old); |
4590 | } | |
4591 | ||
4592 | static int | |
4593 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
4594 | { | |
9a3c8263 SM |
4595 | const struct type_pair *lhs = (const struct type_pair *) item_lhs; |
4596 | const struct type_pair *rhs = (const struct type_pair *) item_rhs; | |
d8734c88 | 4597 | |
ae5a43e0 DJ |
4598 | return lhs->old == rhs->old; |
4599 | } | |
4600 | ||
4601 | /* Allocate the hash table used by copy_type_recursive to walk | |
4602 | types without duplicates. We use OBJFILE's obstack, because | |
4603 | OBJFILE is about to be deleted. */ | |
4604 | ||
4605 | htab_t | |
4606 | create_copied_types_hash (struct objfile *objfile) | |
4607 | { | |
4608 | return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, | |
4609 | NULL, &objfile->objfile_obstack, | |
4610 | hashtab_obstack_allocate, | |
4611 | dummy_obstack_deallocate); | |
4612 | } | |
4613 | ||
d9823cbb KB |
4614 | /* Recursively copy (deep copy) a dynamic attribute list of a type. */ |
4615 | ||
4616 | static struct dynamic_prop_list * | |
4617 | copy_dynamic_prop_list (struct obstack *objfile_obstack, | |
4618 | struct dynamic_prop_list *list) | |
4619 | { | |
4620 | struct dynamic_prop_list *copy = list; | |
4621 | struct dynamic_prop_list **node_ptr = © | |
4622 | ||
4623 | while (*node_ptr != NULL) | |
4624 | { | |
4625 | struct dynamic_prop_list *node_copy; | |
4626 | ||
224c3ddb SM |
4627 | node_copy = ((struct dynamic_prop_list *) |
4628 | obstack_copy (objfile_obstack, *node_ptr, | |
4629 | sizeof (struct dynamic_prop_list))); | |
283a9958 | 4630 | node_copy->prop = (*node_ptr)->prop; |
d9823cbb KB |
4631 | *node_ptr = node_copy; |
4632 | ||
4633 | node_ptr = &node_copy->next; | |
4634 | } | |
4635 | ||
4636 | return copy; | |
4637 | } | |
4638 | ||
7ba81444 | 4639 | /* Recursively copy (deep copy) TYPE, if it is associated with |
eed8b28a PP |
4640 | OBJFILE. Return a new type owned by the gdbarch associated with the type, a |
4641 | saved type if we have already visited TYPE (using COPIED_TYPES), or TYPE if | |
4642 | it is not associated with OBJFILE. */ | |
ae5a43e0 DJ |
4643 | |
4644 | struct type * | |
7ba81444 MS |
4645 | copy_type_recursive (struct objfile *objfile, |
4646 | struct type *type, | |
ae5a43e0 DJ |
4647 | htab_t copied_types) |
4648 | { | |
4649 | struct type_pair *stored, pair; | |
4650 | void **slot; | |
4651 | struct type *new_type; | |
4652 | ||
e9bb382b | 4653 | if (! TYPE_OBJFILE_OWNED (type)) |
ae5a43e0 DJ |
4654 | return type; |
4655 | ||
7ba81444 MS |
4656 | /* This type shouldn't be pointing to any types in other objfiles; |
4657 | if it did, the type might disappear unexpectedly. */ | |
ae5a43e0 DJ |
4658 | gdb_assert (TYPE_OBJFILE (type) == objfile); |
4659 | ||
4660 | pair.old = type; | |
4661 | slot = htab_find_slot (copied_types, &pair, INSERT); | |
4662 | if (*slot != NULL) | |
fe978cb0 | 4663 | return ((struct type_pair *) *slot)->newobj; |
ae5a43e0 | 4664 | |
e9bb382b | 4665 | new_type = alloc_type_arch (get_type_arch (type)); |
ae5a43e0 DJ |
4666 | |
4667 | /* We must add the new type to the hash table immediately, in case | |
4668 | we encounter this type again during a recursive call below. */ | |
8d749320 | 4669 | stored = XOBNEW (&objfile->objfile_obstack, struct type_pair); |
ae5a43e0 | 4670 | stored->old = type; |
fe978cb0 | 4671 | stored->newobj = new_type; |
ae5a43e0 DJ |
4672 | *slot = stored; |
4673 | ||
876cecd0 TT |
4674 | /* Copy the common fields of types. For the main type, we simply |
4675 | copy the entire thing and then update specific fields as needed. */ | |
4676 | *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type); | |
e9bb382b UW |
4677 | TYPE_OBJFILE_OWNED (new_type) = 0; |
4678 | TYPE_OWNER (new_type).gdbarch = get_type_arch (type); | |
876cecd0 | 4679 | |
ae5a43e0 DJ |
4680 | if (TYPE_NAME (type)) |
4681 | TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type)); | |
4682 | if (TYPE_TAG_NAME (type)) | |
4683 | TYPE_TAG_NAME (new_type) = xstrdup (TYPE_TAG_NAME (type)); | |
ae5a43e0 DJ |
4684 | |
4685 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); | |
4686 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
4687 | ||
4688 | /* Copy the fields. */ | |
ae5a43e0 DJ |
4689 | if (TYPE_NFIELDS (type)) |
4690 | { | |
4691 | int i, nfields; | |
4692 | ||
4693 | nfields = TYPE_NFIELDS (type); | |
fc270c35 | 4694 | TYPE_FIELDS (new_type) = XCNEWVEC (struct field, nfields); |
ae5a43e0 DJ |
4695 | for (i = 0; i < nfields; i++) |
4696 | { | |
7ba81444 MS |
4697 | TYPE_FIELD_ARTIFICIAL (new_type, i) = |
4698 | TYPE_FIELD_ARTIFICIAL (type, i); | |
ae5a43e0 DJ |
4699 | TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
4700 | if (TYPE_FIELD_TYPE (type, i)) | |
4701 | TYPE_FIELD_TYPE (new_type, i) | |
4702 | = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i), | |
4703 | copied_types); | |
4704 | if (TYPE_FIELD_NAME (type, i)) | |
7ba81444 MS |
4705 | TYPE_FIELD_NAME (new_type, i) = |
4706 | xstrdup (TYPE_FIELD_NAME (type, i)); | |
d6a843b5 | 4707 | switch (TYPE_FIELD_LOC_KIND (type, i)) |
ae5a43e0 | 4708 | { |
d6a843b5 JK |
4709 | case FIELD_LOC_KIND_BITPOS: |
4710 | SET_FIELD_BITPOS (TYPE_FIELD (new_type, i), | |
4711 | TYPE_FIELD_BITPOS (type, i)); | |
4712 | break; | |
14e75d8e JK |
4713 | case FIELD_LOC_KIND_ENUMVAL: |
4714 | SET_FIELD_ENUMVAL (TYPE_FIELD (new_type, i), | |
4715 | TYPE_FIELD_ENUMVAL (type, i)); | |
4716 | break; | |
d6a843b5 JK |
4717 | case FIELD_LOC_KIND_PHYSADDR: |
4718 | SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i), | |
4719 | TYPE_FIELD_STATIC_PHYSADDR (type, i)); | |
4720 | break; | |
4721 | case FIELD_LOC_KIND_PHYSNAME: | |
4722 | SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i), | |
4723 | xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, | |
4724 | i))); | |
4725 | break; | |
4726 | default: | |
4727 | internal_error (__FILE__, __LINE__, | |
4728 | _("Unexpected type field location kind: %d"), | |
4729 | TYPE_FIELD_LOC_KIND (type, i)); | |
ae5a43e0 DJ |
4730 | } |
4731 | } | |
4732 | } | |
4733 | ||
0963b4bd | 4734 | /* For range types, copy the bounds information. */ |
43bbcdc2 PH |
4735 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
4736 | { | |
8d749320 | 4737 | TYPE_RANGE_DATA (new_type) = XNEW (struct range_bounds); |
43bbcdc2 PH |
4738 | *TYPE_RANGE_DATA (new_type) = *TYPE_RANGE_DATA (type); |
4739 | } | |
4740 | ||
d9823cbb KB |
4741 | if (TYPE_DYN_PROP_LIST (type) != NULL) |
4742 | TYPE_DYN_PROP_LIST (new_type) | |
4743 | = copy_dynamic_prop_list (&objfile->objfile_obstack, | |
4744 | TYPE_DYN_PROP_LIST (type)); | |
4745 | ||
3cdcd0ce | 4746 | |
ae5a43e0 DJ |
4747 | /* Copy pointers to other types. */ |
4748 | if (TYPE_TARGET_TYPE (type)) | |
7ba81444 MS |
4749 | TYPE_TARGET_TYPE (new_type) = |
4750 | copy_type_recursive (objfile, | |
4751 | TYPE_TARGET_TYPE (type), | |
4752 | copied_types); | |
f6b3afbf | 4753 | |
ae5a43e0 DJ |
4754 | /* Maybe copy the type_specific bits. |
4755 | ||
4756 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
4757 | base classes and methods. There's no fundamental reason why we | |
4758 | can't, but at the moment it is not needed. */ | |
4759 | ||
f6b3afbf DE |
4760 | switch (TYPE_SPECIFIC_FIELD (type)) |
4761 | { | |
4762 | case TYPE_SPECIFIC_NONE: | |
4763 | break; | |
4764 | case TYPE_SPECIFIC_FUNC: | |
4765 | INIT_FUNC_SPECIFIC (new_type); | |
4766 | TYPE_CALLING_CONVENTION (new_type) = TYPE_CALLING_CONVENTION (type); | |
4767 | TYPE_NO_RETURN (new_type) = TYPE_NO_RETURN (type); | |
4768 | TYPE_TAIL_CALL_LIST (new_type) = NULL; | |
4769 | break; | |
4770 | case TYPE_SPECIFIC_FLOATFORMAT: | |
4771 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); | |
4772 | break; | |
4773 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
4774 | INIT_CPLUS_SPECIFIC (new_type); | |
4775 | break; | |
4776 | case TYPE_SPECIFIC_GNAT_STUFF: | |
4777 | INIT_GNAT_SPECIFIC (new_type); | |
4778 | break; | |
09e2d7c7 DE |
4779 | case TYPE_SPECIFIC_SELF_TYPE: |
4780 | set_type_self_type (new_type, | |
4781 | copy_type_recursive (objfile, TYPE_SELF_TYPE (type), | |
4782 | copied_types)); | |
4783 | break; | |
f6b3afbf DE |
4784 | default: |
4785 | gdb_assert_not_reached ("bad type_specific_kind"); | |
4786 | } | |
ae5a43e0 DJ |
4787 | |
4788 | return new_type; | |
4789 | } | |
4790 | ||
4af88198 JB |
4791 | /* Make a copy of the given TYPE, except that the pointer & reference |
4792 | types are not preserved. | |
4793 | ||
4794 | This function assumes that the given type has an associated objfile. | |
4795 | This objfile is used to allocate the new type. */ | |
4796 | ||
4797 | struct type * | |
4798 | copy_type (const struct type *type) | |
4799 | { | |
4800 | struct type *new_type; | |
4801 | ||
e9bb382b | 4802 | gdb_assert (TYPE_OBJFILE_OWNED (type)); |
4af88198 | 4803 | |
e9bb382b | 4804 | new_type = alloc_type_copy (type); |
4af88198 JB |
4805 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); |
4806 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
4807 | memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type), | |
4808 | sizeof (struct main_type)); | |
d9823cbb KB |
4809 | if (TYPE_DYN_PROP_LIST (type) != NULL) |
4810 | TYPE_DYN_PROP_LIST (new_type) | |
4811 | = copy_dynamic_prop_list (&TYPE_OBJFILE (type) -> objfile_obstack, | |
4812 | TYPE_DYN_PROP_LIST (type)); | |
4af88198 JB |
4813 | |
4814 | return new_type; | |
4815 | } | |
5212577a | 4816 | \f |
e9bb382b UW |
4817 | /* Helper functions to initialize architecture-specific types. */ |
4818 | ||
4819 | /* Allocate a type structure associated with GDBARCH and set its | |
4820 | CODE, LENGTH, and NAME fields. */ | |
5212577a | 4821 | |
e9bb382b UW |
4822 | struct type * |
4823 | arch_type (struct gdbarch *gdbarch, | |
695bfa52 | 4824 | enum type_code code, int length, const char *name) |
e9bb382b UW |
4825 | { |
4826 | struct type *type; | |
4827 | ||
4828 | type = alloc_type_arch (gdbarch); | |
ae438bc5 | 4829 | set_type_code (type, code); |
e9bb382b UW |
4830 | TYPE_LENGTH (type) = length; |
4831 | ||
4832 | if (name) | |
6c214e7c | 4833 | TYPE_NAME (type) = gdbarch_obstack_strdup (gdbarch, name); |
e9bb382b UW |
4834 | |
4835 | return type; | |
4836 | } | |
4837 | ||
4838 | /* Allocate a TYPE_CODE_INT type structure associated with GDBARCH. | |
4839 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
4840 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 4841 | |
e9bb382b UW |
4842 | struct type * |
4843 | arch_integer_type (struct gdbarch *gdbarch, | |
695bfa52 | 4844 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
4845 | { |
4846 | struct type *t; | |
4847 | ||
4848 | t = arch_type (gdbarch, TYPE_CODE_INT, bit / TARGET_CHAR_BIT, name); | |
4849 | if (unsigned_p) | |
4850 | TYPE_UNSIGNED (t) = 1; | |
e9bb382b UW |
4851 | |
4852 | return t; | |
4853 | } | |
4854 | ||
4855 | /* Allocate a TYPE_CODE_CHAR type structure associated with GDBARCH. | |
4856 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
4857 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 4858 | |
e9bb382b UW |
4859 | struct type * |
4860 | arch_character_type (struct gdbarch *gdbarch, | |
695bfa52 | 4861 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
4862 | { |
4863 | struct type *t; | |
4864 | ||
4865 | t = arch_type (gdbarch, TYPE_CODE_CHAR, bit / TARGET_CHAR_BIT, name); | |
4866 | if (unsigned_p) | |
4867 | TYPE_UNSIGNED (t) = 1; | |
4868 | ||
4869 | return t; | |
4870 | } | |
4871 | ||
4872 | /* Allocate a TYPE_CODE_BOOL type structure associated with GDBARCH. | |
4873 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
4874 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 4875 | |
e9bb382b UW |
4876 | struct type * |
4877 | arch_boolean_type (struct gdbarch *gdbarch, | |
695bfa52 | 4878 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
4879 | { |
4880 | struct type *t; | |
4881 | ||
4882 | t = arch_type (gdbarch, TYPE_CODE_BOOL, bit / TARGET_CHAR_BIT, name); | |
4883 | if (unsigned_p) | |
4884 | TYPE_UNSIGNED (t) = 1; | |
4885 | ||
4886 | return t; | |
4887 | } | |
4888 | ||
4889 | /* Allocate a TYPE_CODE_FLT type structure associated with GDBARCH. | |
4890 | BIT is the type size in bits; if BIT equals -1, the size is | |
4891 | determined by the floatformat. NAME is the type name. Set the | |
4892 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
5212577a | 4893 | |
27067745 | 4894 | struct type * |
e9bb382b | 4895 | arch_float_type (struct gdbarch *gdbarch, |
695bfa52 TT |
4896 | int bit, const char *name, |
4897 | const struct floatformat **floatformats) | |
8da61cc4 DJ |
4898 | { |
4899 | struct type *t; | |
4900 | ||
19f392bc | 4901 | bit = verify_floatformat (bit, floatformats); |
e9bb382b | 4902 | t = arch_type (gdbarch, TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, name); |
8da61cc4 | 4903 | TYPE_FLOATFORMAT (t) = floatformats; |
b79497cb | 4904 | |
8da61cc4 DJ |
4905 | return t; |
4906 | } | |
4907 | ||
88dfca6c UW |
4908 | /* Allocate a TYPE_CODE_DECFLOAT type structure associated with GDBARCH. |
4909 | BIT is the type size in bits. NAME is the type name. */ | |
4910 | ||
4911 | struct type * | |
4912 | arch_decfloat_type (struct gdbarch *gdbarch, int bit, const char *name) | |
4913 | { | |
4914 | struct type *t; | |
4915 | ||
4916 | t = arch_type (gdbarch, TYPE_CODE_DECFLOAT, bit / TARGET_CHAR_BIT, name); | |
4917 | return t; | |
4918 | } | |
4919 | ||
e9bb382b UW |
4920 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with GDBARCH. |
4921 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
5212577a | 4922 | |
27067745 | 4923 | struct type * |
e9bb382b | 4924 | arch_complex_type (struct gdbarch *gdbarch, |
695bfa52 | 4925 | const char *name, struct type *target_type) |
27067745 UW |
4926 | { |
4927 | struct type *t; | |
d8734c88 | 4928 | |
e9bb382b UW |
4929 | t = arch_type (gdbarch, TYPE_CODE_COMPLEX, |
4930 | 2 * TYPE_LENGTH (target_type), name); | |
27067745 UW |
4931 | TYPE_TARGET_TYPE (t) = target_type; |
4932 | return t; | |
4933 | } | |
4934 | ||
88dfca6c UW |
4935 | /* Allocate a TYPE_CODE_PTR type structure associated with GDBARCH. |
4936 | BIT is the pointer type size in bits. NAME is the type name. | |
4937 | TARGET_TYPE is the pointer target type. Always sets the pointer type's | |
4938 | TYPE_UNSIGNED flag. */ | |
4939 | ||
4940 | struct type * | |
4941 | arch_pointer_type (struct gdbarch *gdbarch, | |
4942 | int bit, const char *name, struct type *target_type) | |
4943 | { | |
4944 | struct type *t; | |
4945 | ||
4946 | t = arch_type (gdbarch, TYPE_CODE_PTR, bit / TARGET_CHAR_BIT, name); | |
4947 | TYPE_TARGET_TYPE (t) = target_type; | |
4948 | TYPE_UNSIGNED (t) = 1; | |
4949 | return t; | |
4950 | } | |
4951 | ||
e9bb382b | 4952 | /* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH. |
eb90ce83 | 4953 | NAME is the type name. LENGTH is the size of the flag word in bytes. */ |
5212577a | 4954 | |
e9bb382b | 4955 | struct type * |
695bfa52 | 4956 | arch_flags_type (struct gdbarch *gdbarch, const char *name, int length) |
e9bb382b | 4957 | { |
81516450 | 4958 | int max_nfields = length * TARGET_CHAR_BIT; |
e9bb382b UW |
4959 | struct type *type; |
4960 | ||
4961 | type = arch_type (gdbarch, TYPE_CODE_FLAGS, length, name); | |
4962 | TYPE_UNSIGNED (type) = 1; | |
81516450 DE |
4963 | TYPE_NFIELDS (type) = 0; |
4964 | /* Pre-allocate enough space assuming every field is one bit. */ | |
224c3ddb | 4965 | TYPE_FIELDS (type) |
81516450 | 4966 | = (struct field *) TYPE_ZALLOC (type, max_nfields * sizeof (struct field)); |
e9bb382b UW |
4967 | |
4968 | return type; | |
4969 | } | |
4970 | ||
4971 | /* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
81516450 DE |
4972 | position BITPOS is called NAME. Pass NAME as "" for fields that |
4973 | should not be printed. */ | |
4974 | ||
4975 | void | |
4976 | append_flags_type_field (struct type *type, int start_bitpos, int nr_bits, | |
695bfa52 | 4977 | struct type *field_type, const char *name) |
81516450 DE |
4978 | { |
4979 | int type_bitsize = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
4980 | int field_nr = TYPE_NFIELDS (type); | |
4981 | ||
4982 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS); | |
4983 | gdb_assert (TYPE_NFIELDS (type) + 1 <= type_bitsize); | |
4984 | gdb_assert (start_bitpos >= 0 && start_bitpos < type_bitsize); | |
4985 | gdb_assert (nr_bits >= 1 && nr_bits <= type_bitsize); | |
4986 | gdb_assert (name != NULL); | |
4987 | ||
4988 | TYPE_FIELD_NAME (type, field_nr) = xstrdup (name); | |
4989 | TYPE_FIELD_TYPE (type, field_nr) = field_type; | |
4990 | SET_FIELD_BITPOS (TYPE_FIELD (type, field_nr), start_bitpos); | |
4991 | TYPE_FIELD_BITSIZE (type, field_nr) = nr_bits; | |
4992 | ++TYPE_NFIELDS (type); | |
4993 | } | |
4994 | ||
4995 | /* Special version of append_flags_type_field to add a flag field. | |
4996 | Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
e9bb382b | 4997 | position BITPOS is called NAME. */ |
5212577a | 4998 | |
e9bb382b | 4999 | void |
695bfa52 | 5000 | append_flags_type_flag (struct type *type, int bitpos, const char *name) |
e9bb382b | 5001 | { |
81516450 | 5002 | struct gdbarch *gdbarch = get_type_arch (type); |
e9bb382b | 5003 | |
81516450 DE |
5004 | append_flags_type_field (type, bitpos, 1, |
5005 | builtin_type (gdbarch)->builtin_bool, | |
5006 | name); | |
e9bb382b UW |
5007 | } |
5008 | ||
5009 | /* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as | |
5010 | specified by CODE) associated with GDBARCH. NAME is the type name. */ | |
5212577a | 5011 | |
e9bb382b | 5012 | struct type * |
695bfa52 TT |
5013 | arch_composite_type (struct gdbarch *gdbarch, const char *name, |
5014 | enum type_code code) | |
e9bb382b UW |
5015 | { |
5016 | struct type *t; | |
d8734c88 | 5017 | |
e9bb382b UW |
5018 | gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION); |
5019 | t = arch_type (gdbarch, code, 0, NULL); | |
5020 | TYPE_TAG_NAME (t) = name; | |
5021 | INIT_CPLUS_SPECIFIC (t); | |
5022 | return t; | |
5023 | } | |
5024 | ||
5025 | /* Add new field with name NAME and type FIELD to composite type T. | |
f5dff777 DJ |
5026 | Do not set the field's position or adjust the type's length; |
5027 | the caller should do so. Return the new field. */ | |
5212577a | 5028 | |
f5dff777 | 5029 | struct field * |
695bfa52 | 5030 | append_composite_type_field_raw (struct type *t, const char *name, |
f5dff777 | 5031 | struct type *field) |
e9bb382b UW |
5032 | { |
5033 | struct field *f; | |
d8734c88 | 5034 | |
e9bb382b | 5035 | TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; |
224c3ddb SM |
5036 | TYPE_FIELDS (t) = XRESIZEVEC (struct field, TYPE_FIELDS (t), |
5037 | TYPE_NFIELDS (t)); | |
e9bb382b UW |
5038 | f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); |
5039 | memset (f, 0, sizeof f[0]); | |
5040 | FIELD_TYPE (f[0]) = field; | |
5041 | FIELD_NAME (f[0]) = name; | |
f5dff777 DJ |
5042 | return f; |
5043 | } | |
5044 | ||
5045 | /* Add new field with name NAME and type FIELD to composite type T. | |
5046 | ALIGNMENT (if non-zero) specifies the minimum field alignment. */ | |
5212577a | 5047 | |
f5dff777 | 5048 | void |
695bfa52 | 5049 | append_composite_type_field_aligned (struct type *t, const char *name, |
f5dff777 DJ |
5050 | struct type *field, int alignment) |
5051 | { | |
5052 | struct field *f = append_composite_type_field_raw (t, name, field); | |
d8734c88 | 5053 | |
e9bb382b UW |
5054 | if (TYPE_CODE (t) == TYPE_CODE_UNION) |
5055 | { | |
5056 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) | |
5057 | TYPE_LENGTH (t) = TYPE_LENGTH (field); | |
5058 | } | |
5059 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
5060 | { | |
5061 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
5062 | if (TYPE_NFIELDS (t) > 1) | |
5063 | { | |
f41f5e61 PA |
5064 | SET_FIELD_BITPOS (f[0], |
5065 | (FIELD_BITPOS (f[-1]) | |
5066 | + (TYPE_LENGTH (FIELD_TYPE (f[-1])) | |
5067 | * TARGET_CHAR_BIT))); | |
e9bb382b UW |
5068 | |
5069 | if (alignment) | |
5070 | { | |
86c3c1fc AB |
5071 | int left; |
5072 | ||
5073 | alignment *= TARGET_CHAR_BIT; | |
5074 | left = FIELD_BITPOS (f[0]) % alignment; | |
d8734c88 | 5075 | |
e9bb382b UW |
5076 | if (left) |
5077 | { | |
f41f5e61 | 5078 | SET_FIELD_BITPOS (f[0], FIELD_BITPOS (f[0]) + (alignment - left)); |
86c3c1fc | 5079 | TYPE_LENGTH (t) += (alignment - left) / TARGET_CHAR_BIT; |
e9bb382b UW |
5080 | } |
5081 | } | |
5082 | } | |
5083 | } | |
5084 | } | |
5085 | ||
5086 | /* Add new field with name NAME and type FIELD to composite type T. */ | |
5212577a | 5087 | |
e9bb382b | 5088 | void |
695bfa52 | 5089 | append_composite_type_field (struct type *t, const char *name, |
e9bb382b UW |
5090 | struct type *field) |
5091 | { | |
5092 | append_composite_type_field_aligned (t, name, field, 0); | |
5093 | } | |
5094 | ||
000177f0 AC |
5095 | static struct gdbarch_data *gdbtypes_data; |
5096 | ||
5097 | const struct builtin_type * | |
5098 | builtin_type (struct gdbarch *gdbarch) | |
5099 | { | |
9a3c8263 | 5100 | return (const struct builtin_type *) gdbarch_data (gdbarch, gdbtypes_data); |
000177f0 AC |
5101 | } |
5102 | ||
5103 | static void * | |
5104 | gdbtypes_post_init (struct gdbarch *gdbarch) | |
5105 | { | |
5106 | struct builtin_type *builtin_type | |
5107 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); | |
5108 | ||
46bf5051 | 5109 | /* Basic types. */ |
e9bb382b UW |
5110 | builtin_type->builtin_void |
5111 | = arch_type (gdbarch, TYPE_CODE_VOID, 1, "void"); | |
5112 | builtin_type->builtin_char | |
5113 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5114 | !gdbarch_char_signed (gdbarch), "char"); | |
c413c448 | 5115 | TYPE_NOSIGN (builtin_type->builtin_char) = 1; |
e9bb382b UW |
5116 | builtin_type->builtin_signed_char |
5117 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5118 | 0, "signed char"); | |
5119 | builtin_type->builtin_unsigned_char | |
5120 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5121 | 1, "unsigned char"); | |
5122 | builtin_type->builtin_short | |
5123 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
5124 | 0, "short"); | |
5125 | builtin_type->builtin_unsigned_short | |
5126 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
5127 | 1, "unsigned short"); | |
5128 | builtin_type->builtin_int | |
5129 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
5130 | 0, "int"); | |
5131 | builtin_type->builtin_unsigned_int | |
5132 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
5133 | 1, "unsigned int"); | |
5134 | builtin_type->builtin_long | |
5135 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
5136 | 0, "long"); | |
5137 | builtin_type->builtin_unsigned_long | |
5138 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
5139 | 1, "unsigned long"); | |
5140 | builtin_type->builtin_long_long | |
5141 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
5142 | 0, "long long"); | |
5143 | builtin_type->builtin_unsigned_long_long | |
5144 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
5145 | 1, "unsigned long long"); | |
70bd8e24 | 5146 | builtin_type->builtin_float |
e9bb382b | 5147 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), |
27067745 | 5148 | "float", gdbarch_float_format (gdbarch)); |
70bd8e24 | 5149 | builtin_type->builtin_double |
e9bb382b | 5150 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), |
27067745 | 5151 | "double", gdbarch_double_format (gdbarch)); |
70bd8e24 | 5152 | builtin_type->builtin_long_double |
e9bb382b | 5153 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), |
27067745 | 5154 | "long double", gdbarch_long_double_format (gdbarch)); |
70bd8e24 | 5155 | builtin_type->builtin_complex |
e9bb382b UW |
5156 | = arch_complex_type (gdbarch, "complex", |
5157 | builtin_type->builtin_float); | |
70bd8e24 | 5158 | builtin_type->builtin_double_complex |
e9bb382b UW |
5159 | = arch_complex_type (gdbarch, "double complex", |
5160 | builtin_type->builtin_double); | |
5161 | builtin_type->builtin_string | |
5162 | = arch_type (gdbarch, TYPE_CODE_STRING, 1, "string"); | |
5163 | builtin_type->builtin_bool | |
5164 | = arch_type (gdbarch, TYPE_CODE_BOOL, 1, "bool"); | |
000177f0 | 5165 | |
7678ef8f TJB |
5166 | /* The following three are about decimal floating point types, which |
5167 | are 32-bits, 64-bits and 128-bits respectively. */ | |
5168 | builtin_type->builtin_decfloat | |
88dfca6c | 5169 | = arch_decfloat_type (gdbarch, 32, "_Decimal32"); |
7678ef8f | 5170 | builtin_type->builtin_decdouble |
88dfca6c | 5171 | = arch_decfloat_type (gdbarch, 64, "_Decimal64"); |
7678ef8f | 5172 | builtin_type->builtin_declong |
88dfca6c | 5173 | = arch_decfloat_type (gdbarch, 128, "_Decimal128"); |
7678ef8f | 5174 | |
69feb676 | 5175 | /* "True" character types. */ |
e9bb382b UW |
5176 | builtin_type->builtin_true_char |
5177 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 0, "true character"); | |
5178 | builtin_type->builtin_true_unsigned_char | |
5179 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 1, "true character"); | |
69feb676 | 5180 | |
df4df182 | 5181 | /* Fixed-size integer types. */ |
e9bb382b UW |
5182 | builtin_type->builtin_int0 |
5183 | = arch_integer_type (gdbarch, 0, 0, "int0_t"); | |
5184 | builtin_type->builtin_int8 | |
5185 | = arch_integer_type (gdbarch, 8, 0, "int8_t"); | |
5186 | builtin_type->builtin_uint8 | |
5187 | = arch_integer_type (gdbarch, 8, 1, "uint8_t"); | |
5188 | builtin_type->builtin_int16 | |
5189 | = arch_integer_type (gdbarch, 16, 0, "int16_t"); | |
5190 | builtin_type->builtin_uint16 | |
5191 | = arch_integer_type (gdbarch, 16, 1, "uint16_t"); | |
5192 | builtin_type->builtin_int32 | |
5193 | = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
5194 | builtin_type->builtin_uint32 | |
5195 | = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
5196 | builtin_type->builtin_int64 | |
5197 | = arch_integer_type (gdbarch, 64, 0, "int64_t"); | |
5198 | builtin_type->builtin_uint64 | |
5199 | = arch_integer_type (gdbarch, 64, 1, "uint64_t"); | |
5200 | builtin_type->builtin_int128 | |
5201 | = arch_integer_type (gdbarch, 128, 0, "int128_t"); | |
5202 | builtin_type->builtin_uint128 | |
5203 | = arch_integer_type (gdbarch, 128, 1, "uint128_t"); | |
2844d6b5 KW |
5204 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_int8) |= |
5205 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
5206 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_uint8) |= | |
5207 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
df4df182 | 5208 | |
9a22f0d0 PM |
5209 | /* Wide character types. */ |
5210 | builtin_type->builtin_char16 | |
53e710ac | 5211 | = arch_integer_type (gdbarch, 16, 1, "char16_t"); |
9a22f0d0 | 5212 | builtin_type->builtin_char32 |
53e710ac | 5213 | = arch_integer_type (gdbarch, 32, 1, "char32_t"); |
53375380 PA |
5214 | builtin_type->builtin_wchar |
5215 | = arch_integer_type (gdbarch, gdbarch_wchar_bit (gdbarch), | |
5216 | !gdbarch_wchar_signed (gdbarch), "wchar_t"); | |
9a22f0d0 | 5217 | |
46bf5051 | 5218 | /* Default data/code pointer types. */ |
e9bb382b UW |
5219 | builtin_type->builtin_data_ptr |
5220 | = lookup_pointer_type (builtin_type->builtin_void); | |
5221 | builtin_type->builtin_func_ptr | |
5222 | = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
0875794a JK |
5223 | builtin_type->builtin_func_func |
5224 | = lookup_function_type (builtin_type->builtin_func_ptr); | |
46bf5051 | 5225 | |
78267919 | 5226 | /* This type represents a GDB internal function. */ |
e9bb382b UW |
5227 | builtin_type->internal_fn |
5228 | = arch_type (gdbarch, TYPE_CODE_INTERNAL_FUNCTION, 0, | |
5229 | "<internal function>"); | |
78267919 | 5230 | |
e81e7f5e SC |
5231 | /* This type represents an xmethod. */ |
5232 | builtin_type->xmethod | |
5233 | = arch_type (gdbarch, TYPE_CODE_XMETHOD, 0, "<xmethod>"); | |
5234 | ||
46bf5051 UW |
5235 | return builtin_type; |
5236 | } | |
5237 | ||
46bf5051 UW |
5238 | /* This set of objfile-based types is intended to be used by symbol |
5239 | readers as basic types. */ | |
5240 | ||
5241 | static const struct objfile_data *objfile_type_data; | |
5242 | ||
5243 | const struct objfile_type * | |
5244 | objfile_type (struct objfile *objfile) | |
5245 | { | |
5246 | struct gdbarch *gdbarch; | |
5247 | struct objfile_type *objfile_type | |
9a3c8263 | 5248 | = (struct objfile_type *) objfile_data (objfile, objfile_type_data); |
46bf5051 UW |
5249 | |
5250 | if (objfile_type) | |
5251 | return objfile_type; | |
5252 | ||
5253 | objfile_type = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
5254 | 1, struct objfile_type); | |
5255 | ||
5256 | /* Use the objfile architecture to determine basic type properties. */ | |
5257 | gdbarch = get_objfile_arch (objfile); | |
5258 | ||
5259 | /* Basic types. */ | |
5260 | objfile_type->builtin_void | |
19f392bc | 5261 | = init_type (objfile, TYPE_CODE_VOID, 1, "void"); |
46bf5051 | 5262 | objfile_type->builtin_char |
19f392bc UW |
5263 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5264 | !gdbarch_char_signed (gdbarch), "char"); | |
c413c448 | 5265 | TYPE_NOSIGN (objfile_type->builtin_char) = 1; |
46bf5051 | 5266 | objfile_type->builtin_signed_char |
19f392bc UW |
5267 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5268 | 0, "signed char"); | |
46bf5051 | 5269 | objfile_type->builtin_unsigned_char |
19f392bc UW |
5270 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5271 | 1, "unsigned char"); | |
46bf5051 | 5272 | objfile_type->builtin_short |
19f392bc UW |
5273 | = init_integer_type (objfile, gdbarch_short_bit (gdbarch), |
5274 | 0, "short"); | |
46bf5051 | 5275 | objfile_type->builtin_unsigned_short |
19f392bc UW |
5276 | = init_integer_type (objfile, gdbarch_short_bit (gdbarch), |
5277 | 1, "unsigned short"); | |
46bf5051 | 5278 | objfile_type->builtin_int |
19f392bc UW |
5279 | = init_integer_type (objfile, gdbarch_int_bit (gdbarch), |
5280 | 0, "int"); | |
46bf5051 | 5281 | objfile_type->builtin_unsigned_int |
19f392bc UW |
5282 | = init_integer_type (objfile, gdbarch_int_bit (gdbarch), |
5283 | 1, "unsigned int"); | |
46bf5051 | 5284 | objfile_type->builtin_long |
19f392bc UW |
5285 | = init_integer_type (objfile, gdbarch_long_bit (gdbarch), |
5286 | 0, "long"); | |
46bf5051 | 5287 | objfile_type->builtin_unsigned_long |
19f392bc UW |
5288 | = init_integer_type (objfile, gdbarch_long_bit (gdbarch), |
5289 | 1, "unsigned long"); | |
46bf5051 | 5290 | objfile_type->builtin_long_long |
19f392bc UW |
5291 | = init_integer_type (objfile, gdbarch_long_long_bit (gdbarch), |
5292 | 0, "long long"); | |
46bf5051 | 5293 | objfile_type->builtin_unsigned_long_long |
19f392bc UW |
5294 | = init_integer_type (objfile, gdbarch_long_long_bit (gdbarch), |
5295 | 1, "unsigned long long"); | |
46bf5051 | 5296 | objfile_type->builtin_float |
19f392bc UW |
5297 | = init_float_type (objfile, gdbarch_float_bit (gdbarch), |
5298 | "float", gdbarch_float_format (gdbarch)); | |
46bf5051 | 5299 | objfile_type->builtin_double |
19f392bc UW |
5300 | = init_float_type (objfile, gdbarch_double_bit (gdbarch), |
5301 | "double", gdbarch_double_format (gdbarch)); | |
46bf5051 | 5302 | objfile_type->builtin_long_double |
19f392bc UW |
5303 | = init_float_type (objfile, gdbarch_long_double_bit (gdbarch), |
5304 | "long double", gdbarch_long_double_format (gdbarch)); | |
46bf5051 UW |
5305 | |
5306 | /* This type represents a type that was unrecognized in symbol read-in. */ | |
5307 | objfile_type->builtin_error | |
19f392bc | 5308 | = init_type (objfile, TYPE_CODE_ERROR, 0, "<unknown type>"); |
46bf5051 UW |
5309 | |
5310 | /* The following set of types is used for symbols with no | |
5311 | debug information. */ | |
5312 | objfile_type->nodebug_text_symbol | |
19f392bc UW |
5313 | = init_type (objfile, TYPE_CODE_FUNC, 1, |
5314 | "<text variable, no debug info>"); | |
0875794a | 5315 | objfile_type->nodebug_text_gnu_ifunc_symbol |
19f392bc UW |
5316 | = init_type (objfile, TYPE_CODE_FUNC, 1, |
5317 | "<text gnu-indirect-function variable, no debug info>"); | |
7022349d | 5318 | /* Ifunc resolvers return a function address. */ |
0875794a | 5319 | TYPE_TARGET_TYPE (objfile_type->nodebug_text_gnu_ifunc_symbol) |
7022349d PA |
5320 | = init_integer_type (objfile, gdbarch_addr_bit (gdbarch), 1, |
5321 | "__IFUNC_RESOLVER_RET"); | |
19f392bc | 5322 | TYPE_GNU_IFUNC (objfile_type->nodebug_text_gnu_ifunc_symbol) = 1; |
0875794a | 5323 | objfile_type->nodebug_got_plt_symbol |
19f392bc UW |
5324 | = init_pointer_type (objfile, gdbarch_addr_bit (gdbarch), |
5325 | "<text from jump slot in .got.plt, no debug info>", | |
5326 | objfile_type->nodebug_text_symbol); | |
46bf5051 | 5327 | objfile_type->nodebug_data_symbol |
19f392bc UW |
5328 | = init_integer_type (objfile, gdbarch_int_bit (gdbarch), 0, |
5329 | "<data variable, no debug info>"); | |
46bf5051 | 5330 | objfile_type->nodebug_unknown_symbol |
19f392bc UW |
5331 | = init_integer_type (objfile, TARGET_CHAR_BIT, 0, |
5332 | "<variable (not text or data), no debug info>"); | |
46bf5051 | 5333 | objfile_type->nodebug_tls_symbol |
19f392bc UW |
5334 | = init_integer_type (objfile, gdbarch_int_bit (gdbarch), 0, |
5335 | "<thread local variable, no debug info>"); | |
000177f0 AC |
5336 | |
5337 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
0a7cfe2c | 5338 | the same. |
000177f0 AC |
5339 | |
5340 | The upshot is: | |
5341 | - gdb's `struct type' always describes the target's | |
5342 | representation. | |
5343 | - gdb's `struct value' objects should always hold values in | |
5344 | target form. | |
5345 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
5346 | address space that the assembler and linker work with. Thus, | |
5347 | since target_read_memory takes a CORE_ADDR as an argument, it | |
5348 | can access any memory on the target, even if the processor has | |
5349 | separate code and data address spaces. | |
5350 | ||
46bf5051 UW |
5351 | In this context, objfile_type->builtin_core_addr is a bit odd: |
5352 | it's a target type for a value the target will never see. It's | |
5353 | only used to hold the values of (typeless) linker symbols, which | |
5354 | are indeed in the unified virtual address space. */ | |
000177f0 | 5355 | |
46bf5051 | 5356 | objfile_type->builtin_core_addr |
19f392bc UW |
5357 | = init_integer_type (objfile, gdbarch_addr_bit (gdbarch), 1, |
5358 | "__CORE_ADDR"); | |
64c50499 | 5359 | |
46bf5051 UW |
5360 | set_objfile_data (objfile, objfile_type_data, objfile_type); |
5361 | return objfile_type; | |
000177f0 AC |
5362 | } |
5363 | ||
5212577a | 5364 | extern initialize_file_ftype _initialize_gdbtypes; |
46bf5051 | 5365 | |
c906108c | 5366 | void |
fba45db2 | 5367 | _initialize_gdbtypes (void) |
c906108c | 5368 | { |
5674de60 | 5369 | gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
46bf5051 | 5370 | objfile_type_data = register_objfile_data (); |
5674de60 | 5371 | |
ccce17b0 YQ |
5372 | add_setshow_zuinteger_cmd ("overload", no_class, &overload_debug, |
5373 | _("Set debugging of C++ overloading."), | |
5374 | _("Show debugging of C++ overloading."), | |
5375 | _("When enabled, ranking of the " | |
5376 | "functions is displayed."), | |
5377 | NULL, | |
5378 | show_overload_debug, | |
5379 | &setdebuglist, &showdebuglist); | |
5674de60 | 5380 | |
7ba81444 | 5381 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 | 5382 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3e43a32a MS |
5383 | &opaque_type_resolution, |
5384 | _("Set resolution of opaque struct/class/union" | |
5385 | " types (if set before loading symbols)."), | |
5386 | _("Show resolution of opaque struct/class/union" | |
5387 | " types (if set before loading symbols)."), | |
5388 | NULL, NULL, | |
5674de60 UW |
5389 | show_opaque_type_resolution, |
5390 | &setlist, &showlist); | |
a451cb65 KS |
5391 | |
5392 | /* Add an option to permit non-strict type checking. */ | |
5393 | add_setshow_boolean_cmd ("type", class_support, | |
5394 | &strict_type_checking, | |
5395 | _("Set strict type checking."), | |
5396 | _("Show strict type checking."), | |
5397 | NULL, NULL, | |
5398 | show_strict_type_checking, | |
5399 | &setchecklist, &showchecklist); | |
c906108c | 5400 | } |