Commit | Line | Data |
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c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
4f2aea11 | 2 | |
42a4f53d | 3 | Copyright (C) 1992-2019 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" |
1841ee5d | 41 | #include "floatformat.h" |
ac3aafc7 | 42 | |
6403aeea SW |
43 | /* Initialize BADNESS constants. */ |
44 | ||
a9d5ef47 | 45 | const struct rank LENGTH_MISMATCH_BADNESS = {100,0}; |
6403aeea | 46 | |
a9d5ef47 SW |
47 | const struct rank TOO_FEW_PARAMS_BADNESS = {100,0}; |
48 | const struct rank INCOMPATIBLE_TYPE_BADNESS = {100,0}; | |
6403aeea | 49 | |
a9d5ef47 | 50 | const struct rank EXACT_MATCH_BADNESS = {0,0}; |
6403aeea | 51 | |
a9d5ef47 SW |
52 | const struct rank INTEGER_PROMOTION_BADNESS = {1,0}; |
53 | const struct rank FLOAT_PROMOTION_BADNESS = {1,0}; | |
54 | const struct rank BASE_PTR_CONVERSION_BADNESS = {1,0}; | |
e15c3eb4 | 55 | const struct rank CV_CONVERSION_BADNESS = {1, 0}; |
a9d5ef47 SW |
56 | const struct rank INTEGER_CONVERSION_BADNESS = {2,0}; |
57 | const struct rank FLOAT_CONVERSION_BADNESS = {2,0}; | |
58 | const struct rank INT_FLOAT_CONVERSION_BADNESS = {2,0}; | |
59 | const struct rank VOID_PTR_CONVERSION_BADNESS = {2,0}; | |
5b4f6e25 | 60 | const struct rank BOOL_CONVERSION_BADNESS = {3,0}; |
a9d5ef47 SW |
61 | const struct rank BASE_CONVERSION_BADNESS = {2,0}; |
62 | const struct rank REFERENCE_CONVERSION_BADNESS = {2,0}; | |
06acc08f | 63 | const struct rank REFERENCE_SEE_THROUGH_BADNESS = {0,1}; |
da096638 | 64 | const struct rank NULL_POINTER_CONVERSION_BADNESS = {2,0}; |
a9d5ef47 | 65 | const struct rank NS_POINTER_CONVERSION_BADNESS = {10,0}; |
a451cb65 | 66 | const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS = {3,0}; |
6403aeea | 67 | |
8da61cc4 | 68 | /* Floatformat pairs. */ |
f9e9243a UW |
69 | const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN] = { |
70 | &floatformat_ieee_half_big, | |
71 | &floatformat_ieee_half_little | |
72 | }; | |
8da61cc4 DJ |
73 | const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { |
74 | &floatformat_ieee_single_big, | |
75 | &floatformat_ieee_single_little | |
76 | }; | |
77 | const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { | |
78 | &floatformat_ieee_double_big, | |
79 | &floatformat_ieee_double_little | |
80 | }; | |
81 | const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { | |
82 | &floatformat_ieee_double_big, | |
83 | &floatformat_ieee_double_littlebyte_bigword | |
84 | }; | |
85 | const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { | |
86 | &floatformat_i387_ext, | |
87 | &floatformat_i387_ext | |
88 | }; | |
89 | const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { | |
90 | &floatformat_m68881_ext, | |
91 | &floatformat_m68881_ext | |
92 | }; | |
93 | const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { | |
94 | &floatformat_arm_ext_big, | |
95 | &floatformat_arm_ext_littlebyte_bigword | |
96 | }; | |
97 | const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { | |
98 | &floatformat_ia64_spill_big, | |
99 | &floatformat_ia64_spill_little | |
100 | }; | |
101 | const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = { | |
102 | &floatformat_ia64_quad_big, | |
103 | &floatformat_ia64_quad_little | |
104 | }; | |
105 | const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { | |
106 | &floatformat_vax_f, | |
107 | &floatformat_vax_f | |
108 | }; | |
109 | const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { | |
110 | &floatformat_vax_d, | |
111 | &floatformat_vax_d | |
112 | }; | |
b14d30e1 | 113 | const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { |
f5aee5ee AM |
114 | &floatformat_ibm_long_double_big, |
115 | &floatformat_ibm_long_double_little | |
b14d30e1 | 116 | }; |
8da61cc4 | 117 | |
2873700e KS |
118 | /* Should opaque types be resolved? */ |
119 | ||
491144b5 | 120 | static bool opaque_type_resolution = true; |
2873700e | 121 | |
79bb1944 | 122 | /* See gdbtypes.h. */ |
2873700e KS |
123 | |
124 | unsigned int overload_debug = 0; | |
125 | ||
a451cb65 KS |
126 | /* A flag to enable strict type checking. */ |
127 | ||
491144b5 | 128 | static bool strict_type_checking = true; |
a451cb65 | 129 | |
2873700e | 130 | /* A function to show whether opaque types are resolved. */ |
5212577a | 131 | |
920d2a44 AC |
132 | static void |
133 | show_opaque_type_resolution (struct ui_file *file, int from_tty, | |
7ba81444 MS |
134 | struct cmd_list_element *c, |
135 | const char *value) | |
920d2a44 | 136 | { |
3e43a32a MS |
137 | fprintf_filtered (file, _("Resolution of opaque struct/class/union types " |
138 | "(if set before loading symbols) is %s.\n"), | |
920d2a44 AC |
139 | value); |
140 | } | |
141 | ||
2873700e | 142 | /* A function to show whether C++ overload debugging is enabled. */ |
5212577a | 143 | |
920d2a44 AC |
144 | static void |
145 | show_overload_debug (struct ui_file *file, int from_tty, | |
146 | struct cmd_list_element *c, const char *value) | |
147 | { | |
7ba81444 MS |
148 | fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"), |
149 | value); | |
920d2a44 | 150 | } |
c906108c | 151 | |
a451cb65 KS |
152 | /* A function to show the status of strict type checking. */ |
153 | ||
154 | static void | |
155 | show_strict_type_checking (struct ui_file *file, int from_tty, | |
156 | struct cmd_list_element *c, const char *value) | |
157 | { | |
158 | fprintf_filtered (file, _("Strict type checking is %s.\n"), value); | |
159 | } | |
160 | ||
5212577a | 161 | \f |
e9bb382b UW |
162 | /* Allocate a new OBJFILE-associated type structure and fill it |
163 | with some defaults. Space for the type structure is allocated | |
164 | on the objfile's objfile_obstack. */ | |
c906108c SS |
165 | |
166 | struct type * | |
fba45db2 | 167 | alloc_type (struct objfile *objfile) |
c906108c | 168 | { |
52f0bd74 | 169 | struct type *type; |
c906108c | 170 | |
e9bb382b UW |
171 | gdb_assert (objfile != NULL); |
172 | ||
7ba81444 | 173 | /* Alloc the structure and start off with all fields zeroed. */ |
e9bb382b UW |
174 | type = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct type); |
175 | TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (&objfile->objfile_obstack, | |
176 | struct main_type); | |
177 | OBJSTAT (objfile, n_types++); | |
c906108c | 178 | |
e9bb382b UW |
179 | TYPE_OBJFILE_OWNED (type) = 1; |
180 | TYPE_OWNER (type).objfile = objfile; | |
c906108c | 181 | |
7ba81444 | 182 | /* Initialize the fields that might not be zero. */ |
c906108c SS |
183 | |
184 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
2fdde8f8 | 185 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
c906108c | 186 | |
c16abbde | 187 | return type; |
c906108c SS |
188 | } |
189 | ||
e9bb382b UW |
190 | /* Allocate a new GDBARCH-associated type structure and fill it |
191 | with some defaults. Space for the type structure is allocated | |
8f57eec2 | 192 | on the obstack associated with GDBARCH. */ |
e9bb382b UW |
193 | |
194 | struct type * | |
195 | alloc_type_arch (struct gdbarch *gdbarch) | |
196 | { | |
197 | struct type *type; | |
198 | ||
199 | gdb_assert (gdbarch != NULL); | |
200 | ||
201 | /* Alloc the structure and start off with all fields zeroed. */ | |
202 | ||
8f57eec2 PP |
203 | type = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct type); |
204 | TYPE_MAIN_TYPE (type) = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct main_type); | |
e9bb382b UW |
205 | |
206 | TYPE_OBJFILE_OWNED (type) = 0; | |
207 | TYPE_OWNER (type).gdbarch = gdbarch; | |
208 | ||
209 | /* Initialize the fields that might not be zero. */ | |
210 | ||
211 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
e9bb382b UW |
212 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
213 | ||
214 | return type; | |
215 | } | |
216 | ||
217 | /* If TYPE is objfile-associated, allocate a new type structure | |
218 | associated with the same objfile. If TYPE is gdbarch-associated, | |
219 | allocate a new type structure associated with the same gdbarch. */ | |
220 | ||
221 | struct type * | |
222 | alloc_type_copy (const struct type *type) | |
223 | { | |
224 | if (TYPE_OBJFILE_OWNED (type)) | |
225 | return alloc_type (TYPE_OWNER (type).objfile); | |
226 | else | |
227 | return alloc_type_arch (TYPE_OWNER (type).gdbarch); | |
228 | } | |
229 | ||
230 | /* If TYPE is gdbarch-associated, return that architecture. | |
231 | If TYPE is objfile-associated, return that objfile's architecture. */ | |
232 | ||
233 | struct gdbarch * | |
234 | get_type_arch (const struct type *type) | |
235 | { | |
2fabdf33 AB |
236 | struct gdbarch *arch; |
237 | ||
e9bb382b | 238 | if (TYPE_OBJFILE_OWNED (type)) |
2fabdf33 | 239 | arch = get_objfile_arch (TYPE_OWNER (type).objfile); |
e9bb382b | 240 | else |
2fabdf33 AB |
241 | arch = TYPE_OWNER (type).gdbarch; |
242 | ||
243 | /* The ARCH can be NULL if TYPE is associated with neither an objfile nor | |
244 | a gdbarch, however, this is very rare, and even then, in most cases | |
245 | that get_type_arch is called, we assume that a non-NULL value is | |
246 | returned. */ | |
247 | gdb_assert (arch != NULL); | |
248 | return arch; | |
e9bb382b UW |
249 | } |
250 | ||
99ad9427 YQ |
251 | /* See gdbtypes.h. */ |
252 | ||
253 | struct type * | |
254 | get_target_type (struct type *type) | |
255 | { | |
256 | if (type != NULL) | |
257 | { | |
258 | type = TYPE_TARGET_TYPE (type); | |
259 | if (type != NULL) | |
260 | type = check_typedef (type); | |
261 | } | |
262 | ||
263 | return type; | |
264 | } | |
265 | ||
2e056931 SM |
266 | /* See gdbtypes.h. */ |
267 | ||
268 | unsigned int | |
269 | type_length_units (struct type *type) | |
270 | { | |
271 | struct gdbarch *arch = get_type_arch (type); | |
272 | int unit_size = gdbarch_addressable_memory_unit_size (arch); | |
273 | ||
274 | return TYPE_LENGTH (type) / unit_size; | |
275 | } | |
276 | ||
2fdde8f8 DJ |
277 | /* Alloc a new type instance structure, fill it with some defaults, |
278 | and point it at OLDTYPE. Allocate the new type instance from the | |
279 | same place as OLDTYPE. */ | |
280 | ||
281 | static struct type * | |
282 | alloc_type_instance (struct type *oldtype) | |
283 | { | |
284 | struct type *type; | |
285 | ||
286 | /* Allocate the structure. */ | |
287 | ||
e9bb382b | 288 | if (! TYPE_OBJFILE_OWNED (oldtype)) |
2fabdf33 | 289 | type = GDBARCH_OBSTACK_ZALLOC (get_type_arch (oldtype), struct type); |
2fdde8f8 | 290 | else |
1deafd4e PA |
291 | type = OBSTACK_ZALLOC (&TYPE_OBJFILE (oldtype)->objfile_obstack, |
292 | struct type); | |
293 | ||
2fdde8f8 DJ |
294 | TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype); |
295 | ||
296 | TYPE_CHAIN (type) = type; /* Chain back to itself for now. */ | |
297 | ||
c16abbde | 298 | return type; |
2fdde8f8 DJ |
299 | } |
300 | ||
301 | /* Clear all remnants of the previous type at TYPE, in preparation for | |
e9bb382b | 302 | replacing it with something else. Preserve owner information. */ |
5212577a | 303 | |
2fdde8f8 DJ |
304 | static void |
305 | smash_type (struct type *type) | |
306 | { | |
e9bb382b UW |
307 | int objfile_owned = TYPE_OBJFILE_OWNED (type); |
308 | union type_owner owner = TYPE_OWNER (type); | |
309 | ||
2fdde8f8 DJ |
310 | memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
311 | ||
e9bb382b UW |
312 | /* Restore owner information. */ |
313 | TYPE_OBJFILE_OWNED (type) = objfile_owned; | |
314 | TYPE_OWNER (type) = owner; | |
315 | ||
2fdde8f8 DJ |
316 | /* For now, delete the rings. */ |
317 | TYPE_CHAIN (type) = type; | |
318 | ||
319 | /* For now, leave the pointer/reference types alone. */ | |
320 | } | |
321 | ||
c906108c SS |
322 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
323 | to a pointer to memory where the pointer type should be stored. | |
324 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
325 | We allocate new memory if needed. */ | |
326 | ||
327 | struct type * | |
fba45db2 | 328 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 329 | { |
52f0bd74 | 330 | struct type *ntype; /* New type */ |
053cb41b | 331 | struct type *chain; |
c906108c SS |
332 | |
333 | ntype = TYPE_POINTER_TYPE (type); | |
334 | ||
c5aa993b | 335 | if (ntype) |
c906108c | 336 | { |
c5aa993b | 337 | if (typeptr == 0) |
7ba81444 MS |
338 | return ntype; /* Don't care about alloc, |
339 | and have new type. */ | |
c906108c | 340 | else if (*typeptr == 0) |
c5aa993b | 341 | { |
7ba81444 | 342 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 343 | return ntype; |
c5aa993b | 344 | } |
c906108c SS |
345 | } |
346 | ||
347 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
348 | { | |
e9bb382b | 349 | ntype = alloc_type_copy (type); |
c906108c SS |
350 | if (typeptr) |
351 | *typeptr = ntype; | |
352 | } | |
7ba81444 | 353 | else /* We have storage, but need to reset it. */ |
c906108c SS |
354 | { |
355 | ntype = *typeptr; | |
053cb41b | 356 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 357 | smash_type (ntype); |
053cb41b | 358 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
359 | } |
360 | ||
361 | TYPE_TARGET_TYPE (ntype) = type; | |
362 | TYPE_POINTER_TYPE (type) = ntype; | |
363 | ||
5212577a | 364 | /* FIXME! Assumes the machine has only one representation for pointers! */ |
c906108c | 365 | |
50810684 UW |
366 | TYPE_LENGTH (ntype) |
367 | = gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c SS |
368 | TYPE_CODE (ntype) = TYPE_CODE_PTR; |
369 | ||
67b2adb2 | 370 | /* Mark pointers as unsigned. The target converts between pointers |
76e71323 | 371 | and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and |
7ba81444 | 372 | gdbarch_address_to_pointer. */ |
876cecd0 | 373 | TYPE_UNSIGNED (ntype) = 1; |
c5aa993b | 374 | |
053cb41b JB |
375 | /* Update the length of all the other variants of this type. */ |
376 | chain = TYPE_CHAIN (ntype); | |
377 | while (chain != ntype) | |
378 | { | |
379 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
380 | chain = TYPE_CHAIN (chain); | |
381 | } | |
382 | ||
c906108c SS |
383 | return ntype; |
384 | } | |
385 | ||
386 | /* Given a type TYPE, return a type of pointers to that type. | |
387 | May need to construct such a type if this is the first use. */ | |
388 | ||
389 | struct type * | |
fba45db2 | 390 | lookup_pointer_type (struct type *type) |
c906108c | 391 | { |
c5aa993b | 392 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
393 | } |
394 | ||
7ba81444 MS |
395 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, |
396 | points to a pointer to memory where the reference type should be | |
397 | stored. If *TYPEPTR is zero, update it to point to the reference | |
3b224330 AV |
398 | type we return. We allocate new memory if needed. REFCODE denotes |
399 | the kind of reference type to lookup (lvalue or rvalue reference). */ | |
c906108c SS |
400 | |
401 | struct type * | |
3b224330 AV |
402 | make_reference_type (struct type *type, struct type **typeptr, |
403 | enum type_code refcode) | |
c906108c | 404 | { |
52f0bd74 | 405 | struct type *ntype; /* New type */ |
3b224330 | 406 | struct type **reftype; |
1e98b326 | 407 | struct type *chain; |
c906108c | 408 | |
3b224330 AV |
409 | gdb_assert (refcode == TYPE_CODE_REF || refcode == TYPE_CODE_RVALUE_REF); |
410 | ||
411 | ntype = (refcode == TYPE_CODE_REF ? TYPE_REFERENCE_TYPE (type) | |
412 | : TYPE_RVALUE_REFERENCE_TYPE (type)); | |
c906108c | 413 | |
c5aa993b | 414 | if (ntype) |
c906108c | 415 | { |
c5aa993b | 416 | if (typeptr == 0) |
7ba81444 MS |
417 | return ntype; /* Don't care about alloc, |
418 | and have new type. */ | |
c906108c | 419 | else if (*typeptr == 0) |
c5aa993b | 420 | { |
7ba81444 | 421 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 422 | return ntype; |
c5aa993b | 423 | } |
c906108c SS |
424 | } |
425 | ||
426 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
427 | { | |
e9bb382b | 428 | ntype = alloc_type_copy (type); |
c906108c SS |
429 | if (typeptr) |
430 | *typeptr = ntype; | |
431 | } | |
7ba81444 | 432 | else /* We have storage, but need to reset it. */ |
c906108c SS |
433 | { |
434 | ntype = *typeptr; | |
1e98b326 | 435 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 436 | smash_type (ntype); |
1e98b326 | 437 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
438 | } |
439 | ||
440 | TYPE_TARGET_TYPE (ntype) = type; | |
3b224330 AV |
441 | reftype = (refcode == TYPE_CODE_REF ? &TYPE_REFERENCE_TYPE (type) |
442 | : &TYPE_RVALUE_REFERENCE_TYPE (type)); | |
443 | ||
444 | *reftype = ntype; | |
c906108c | 445 | |
7ba81444 MS |
446 | /* FIXME! Assume the machine has only one representation for |
447 | references, and that it matches the (only) representation for | |
448 | pointers! */ | |
c906108c | 449 | |
50810684 UW |
450 | TYPE_LENGTH (ntype) = |
451 | gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
3b224330 | 452 | TYPE_CODE (ntype) = refcode; |
c5aa993b | 453 | |
3b224330 | 454 | *reftype = ntype; |
c906108c | 455 | |
1e98b326 JB |
456 | /* Update the length of all the other variants of this type. */ |
457 | chain = TYPE_CHAIN (ntype); | |
458 | while (chain != ntype) | |
459 | { | |
460 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
461 | chain = TYPE_CHAIN (chain); | |
462 | } | |
463 | ||
c906108c SS |
464 | return ntype; |
465 | } | |
466 | ||
7ba81444 MS |
467 | /* Same as above, but caller doesn't care about memory allocation |
468 | details. */ | |
c906108c SS |
469 | |
470 | struct type * | |
3b224330 AV |
471 | lookup_reference_type (struct type *type, enum type_code refcode) |
472 | { | |
473 | return make_reference_type (type, (struct type **) 0, refcode); | |
474 | } | |
475 | ||
476 | /* Lookup the lvalue reference type for the type TYPE. */ | |
477 | ||
478 | struct type * | |
479 | lookup_lvalue_reference_type (struct type *type) | |
480 | { | |
481 | return lookup_reference_type (type, TYPE_CODE_REF); | |
482 | } | |
483 | ||
484 | /* Lookup the rvalue reference type for the type TYPE. */ | |
485 | ||
486 | struct type * | |
487 | lookup_rvalue_reference_type (struct type *type) | |
c906108c | 488 | { |
3b224330 | 489 | return lookup_reference_type (type, TYPE_CODE_RVALUE_REF); |
c906108c SS |
490 | } |
491 | ||
7ba81444 MS |
492 | /* Lookup a function type that returns type TYPE. TYPEPTR, if |
493 | nonzero, points to a pointer to memory where the function type | |
494 | should be stored. If *TYPEPTR is zero, update it to point to the | |
0c8b41f1 | 495 | function type we return. We allocate new memory if needed. */ |
c906108c SS |
496 | |
497 | struct type * | |
0c8b41f1 | 498 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 499 | { |
52f0bd74 | 500 | struct type *ntype; /* New type */ |
c906108c SS |
501 | |
502 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
503 | { | |
e9bb382b | 504 | ntype = alloc_type_copy (type); |
c906108c SS |
505 | if (typeptr) |
506 | *typeptr = ntype; | |
507 | } | |
7ba81444 | 508 | else /* We have storage, but need to reset it. */ |
c906108c SS |
509 | { |
510 | ntype = *typeptr; | |
2fdde8f8 | 511 | smash_type (ntype); |
c906108c SS |
512 | } |
513 | ||
514 | TYPE_TARGET_TYPE (ntype) = type; | |
515 | ||
516 | TYPE_LENGTH (ntype) = 1; | |
517 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
c5aa993b | 518 | |
b6cdc2c1 JK |
519 | INIT_FUNC_SPECIFIC (ntype); |
520 | ||
c906108c SS |
521 | return ntype; |
522 | } | |
523 | ||
c906108c SS |
524 | /* Given a type TYPE, return a type of functions that return that type. |
525 | May need to construct such a type if this is the first use. */ | |
526 | ||
527 | struct type * | |
fba45db2 | 528 | lookup_function_type (struct type *type) |
c906108c | 529 | { |
0c8b41f1 | 530 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
531 | } |
532 | ||
71918a86 | 533 | /* Given a type TYPE and argument types, return the appropriate |
a6fb9c08 TT |
534 | function type. If the final type in PARAM_TYPES is NULL, make a |
535 | varargs function. */ | |
71918a86 TT |
536 | |
537 | struct type * | |
538 | lookup_function_type_with_arguments (struct type *type, | |
539 | int nparams, | |
540 | struct type **param_types) | |
541 | { | |
542 | struct type *fn = make_function_type (type, (struct type **) 0); | |
543 | int i; | |
544 | ||
e314d629 | 545 | if (nparams > 0) |
a6fb9c08 | 546 | { |
e314d629 TT |
547 | if (param_types[nparams - 1] == NULL) |
548 | { | |
549 | --nparams; | |
550 | TYPE_VARARGS (fn) = 1; | |
551 | } | |
552 | else if (TYPE_CODE (check_typedef (param_types[nparams - 1])) | |
553 | == TYPE_CODE_VOID) | |
554 | { | |
555 | --nparams; | |
556 | /* Caller should have ensured this. */ | |
557 | gdb_assert (nparams == 0); | |
558 | TYPE_PROTOTYPED (fn) = 1; | |
559 | } | |
54990598 PA |
560 | else |
561 | TYPE_PROTOTYPED (fn) = 1; | |
a6fb9c08 TT |
562 | } |
563 | ||
71918a86 | 564 | TYPE_NFIELDS (fn) = nparams; |
224c3ddb SM |
565 | TYPE_FIELDS (fn) |
566 | = (struct field *) TYPE_ZALLOC (fn, nparams * sizeof (struct field)); | |
71918a86 TT |
567 | for (i = 0; i < nparams; ++i) |
568 | TYPE_FIELD_TYPE (fn, i) = param_types[i]; | |
569 | ||
570 | return fn; | |
571 | } | |
572 | ||
47663de5 MS |
573 | /* Identify address space identifier by name -- |
574 | return the integer flag defined in gdbtypes.h. */ | |
5212577a DE |
575 | |
576 | int | |
61f4b350 TT |
577 | address_space_name_to_int (struct gdbarch *gdbarch, |
578 | const char *space_identifier) | |
47663de5 | 579 | { |
8b2dbe47 | 580 | int type_flags; |
d8734c88 | 581 | |
7ba81444 | 582 | /* Check for known address space delimiters. */ |
47663de5 | 583 | if (!strcmp (space_identifier, "code")) |
876cecd0 | 584 | return TYPE_INSTANCE_FLAG_CODE_SPACE; |
47663de5 | 585 | else if (!strcmp (space_identifier, "data")) |
876cecd0 | 586 | return TYPE_INSTANCE_FLAG_DATA_SPACE; |
5f11f355 AC |
587 | else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
588 | && gdbarch_address_class_name_to_type_flags (gdbarch, | |
589 | space_identifier, | |
590 | &type_flags)) | |
8b2dbe47 | 591 | return type_flags; |
47663de5 | 592 | else |
8a3fe4f8 | 593 | error (_("Unknown address space specifier: \"%s\""), space_identifier); |
47663de5 MS |
594 | } |
595 | ||
596 | /* Identify address space identifier by integer flag as defined in | |
7ba81444 | 597 | gdbtypes.h -- return the string version of the adress space name. */ |
47663de5 | 598 | |
321432c0 | 599 | const char * |
50810684 | 600 | address_space_int_to_name (struct gdbarch *gdbarch, int space_flag) |
47663de5 | 601 | { |
876cecd0 | 602 | if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE) |
47663de5 | 603 | return "code"; |
876cecd0 | 604 | else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE) |
47663de5 | 605 | return "data"; |
876cecd0 | 606 | else if ((space_flag & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) |
5f11f355 AC |
607 | && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
608 | return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); | |
47663de5 MS |
609 | else |
610 | return NULL; | |
611 | } | |
612 | ||
2fdde8f8 | 613 | /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
ad766c0a JB |
614 | |
615 | If STORAGE is non-NULL, create the new type instance there. | |
616 | STORAGE must be in the same obstack as TYPE. */ | |
47663de5 | 617 | |
b9362cc7 | 618 | static struct type * |
2fdde8f8 DJ |
619 | make_qualified_type (struct type *type, int new_flags, |
620 | struct type *storage) | |
47663de5 MS |
621 | { |
622 | struct type *ntype; | |
623 | ||
624 | ntype = type; | |
5f61c20e JK |
625 | do |
626 | { | |
627 | if (TYPE_INSTANCE_FLAGS (ntype) == new_flags) | |
628 | return ntype; | |
629 | ntype = TYPE_CHAIN (ntype); | |
630 | } | |
631 | while (ntype != type); | |
47663de5 | 632 | |
2fdde8f8 DJ |
633 | /* Create a new type instance. */ |
634 | if (storage == NULL) | |
635 | ntype = alloc_type_instance (type); | |
636 | else | |
637 | { | |
7ba81444 MS |
638 | /* If STORAGE was provided, it had better be in the same objfile |
639 | as TYPE. Otherwise, we can't link it into TYPE's cv chain: | |
640 | if one objfile is freed and the other kept, we'd have | |
641 | dangling pointers. */ | |
ad766c0a JB |
642 | gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage)); |
643 | ||
2fdde8f8 DJ |
644 | ntype = storage; |
645 | TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); | |
646 | TYPE_CHAIN (ntype) = ntype; | |
647 | } | |
47663de5 MS |
648 | |
649 | /* Pointers or references to the original type are not relevant to | |
2fdde8f8 | 650 | the new type. */ |
47663de5 MS |
651 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
652 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
47663de5 | 653 | |
2fdde8f8 DJ |
654 | /* Chain the new qualified type to the old type. */ |
655 | TYPE_CHAIN (ntype) = TYPE_CHAIN (type); | |
656 | TYPE_CHAIN (type) = ntype; | |
657 | ||
658 | /* Now set the instance flags and return the new type. */ | |
659 | TYPE_INSTANCE_FLAGS (ntype) = new_flags; | |
47663de5 | 660 | |
ab5d3da6 KB |
661 | /* Set length of new type to that of the original type. */ |
662 | TYPE_LENGTH (ntype) = TYPE_LENGTH (type); | |
663 | ||
47663de5 MS |
664 | return ntype; |
665 | } | |
666 | ||
2fdde8f8 DJ |
667 | /* Make an address-space-delimited variant of a type -- a type that |
668 | is identical to the one supplied except that it has an address | |
669 | space attribute attached to it (such as "code" or "data"). | |
670 | ||
7ba81444 MS |
671 | The space attributes "code" and "data" are for Harvard |
672 | architectures. The address space attributes are for architectures | |
673 | which have alternately sized pointers or pointers with alternate | |
674 | representations. */ | |
2fdde8f8 DJ |
675 | |
676 | struct type * | |
677 | make_type_with_address_space (struct type *type, int space_flag) | |
678 | { | |
2fdde8f8 | 679 | int new_flags = ((TYPE_INSTANCE_FLAGS (type) |
876cecd0 TT |
680 | & ~(TYPE_INSTANCE_FLAG_CODE_SPACE |
681 | | TYPE_INSTANCE_FLAG_DATA_SPACE | |
682 | | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)) | |
2fdde8f8 DJ |
683 | | space_flag); |
684 | ||
685 | return make_qualified_type (type, new_flags, NULL); | |
686 | } | |
c906108c SS |
687 | |
688 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
689 | one supplied except that it may have const or volatile attributes | |
690 | CNST is a flag for setting the const attribute | |
691 | VOLTL is a flag for setting the volatile attribute | |
692 | TYPE is the base type whose variant we are creating. | |
c906108c | 693 | |
ad766c0a JB |
694 | If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to |
695 | storage to hold the new qualified type; *TYPEPTR and TYPE must be | |
696 | in the same objfile. Otherwise, allocate fresh memory for the new | |
697 | type whereever TYPE lives. If TYPEPTR is non-zero, set it to the | |
698 | new type we construct. */ | |
5212577a | 699 | |
c906108c | 700 | struct type * |
7ba81444 MS |
701 | make_cv_type (int cnst, int voltl, |
702 | struct type *type, | |
703 | struct type **typeptr) | |
c906108c | 704 | { |
52f0bd74 | 705 | struct type *ntype; /* New type */ |
c906108c | 706 | |
2fdde8f8 | 707 | int new_flags = (TYPE_INSTANCE_FLAGS (type) |
308d96ed MS |
708 | & ~(TYPE_INSTANCE_FLAG_CONST |
709 | | TYPE_INSTANCE_FLAG_VOLATILE)); | |
c906108c | 710 | |
c906108c | 711 | if (cnst) |
876cecd0 | 712 | new_flags |= TYPE_INSTANCE_FLAG_CONST; |
c906108c SS |
713 | |
714 | if (voltl) | |
876cecd0 | 715 | new_flags |= TYPE_INSTANCE_FLAG_VOLATILE; |
a02fd225 | 716 | |
2fdde8f8 | 717 | if (typeptr && *typeptr != NULL) |
a02fd225 | 718 | { |
ad766c0a JB |
719 | /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
720 | a C-V variant chain that threads across objfiles: if one | |
721 | objfile gets freed, then the other has a broken C-V chain. | |
722 | ||
723 | This code used to try to copy over the main type from TYPE to | |
724 | *TYPEPTR if they were in different objfiles, but that's | |
725 | wrong, too: TYPE may have a field list or member function | |
726 | lists, which refer to types of their own, etc. etc. The | |
727 | whole shebang would need to be copied over recursively; you | |
728 | can't have inter-objfile pointers. The only thing to do is | |
729 | to leave stub types as stub types, and look them up afresh by | |
730 | name each time you encounter them. */ | |
731 | gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type)); | |
2fdde8f8 DJ |
732 | } |
733 | ||
7ba81444 MS |
734 | ntype = make_qualified_type (type, new_flags, |
735 | typeptr ? *typeptr : NULL); | |
c906108c | 736 | |
2fdde8f8 DJ |
737 | if (typeptr != NULL) |
738 | *typeptr = ntype; | |
a02fd225 | 739 | |
2fdde8f8 | 740 | return ntype; |
a02fd225 | 741 | } |
c906108c | 742 | |
06d66ee9 TT |
743 | /* Make a 'restrict'-qualified version of TYPE. */ |
744 | ||
745 | struct type * | |
746 | make_restrict_type (struct type *type) | |
747 | { | |
748 | return make_qualified_type (type, | |
749 | (TYPE_INSTANCE_FLAGS (type) | |
750 | | TYPE_INSTANCE_FLAG_RESTRICT), | |
751 | NULL); | |
752 | } | |
753 | ||
f1660027 TT |
754 | /* Make a type without const, volatile, or restrict. */ |
755 | ||
756 | struct type * | |
757 | make_unqualified_type (struct type *type) | |
758 | { | |
759 | return make_qualified_type (type, | |
760 | (TYPE_INSTANCE_FLAGS (type) | |
761 | & ~(TYPE_INSTANCE_FLAG_CONST | |
762 | | TYPE_INSTANCE_FLAG_VOLATILE | |
763 | | TYPE_INSTANCE_FLAG_RESTRICT)), | |
764 | NULL); | |
765 | } | |
766 | ||
a2c2acaf MW |
767 | /* Make a '_Atomic'-qualified version of TYPE. */ |
768 | ||
769 | struct type * | |
770 | make_atomic_type (struct type *type) | |
771 | { | |
772 | return make_qualified_type (type, | |
773 | (TYPE_INSTANCE_FLAGS (type) | |
774 | | TYPE_INSTANCE_FLAG_ATOMIC), | |
775 | NULL); | |
776 | } | |
777 | ||
2fdde8f8 DJ |
778 | /* Replace the contents of ntype with the type *type. This changes the |
779 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
780 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 781 | |
cda6c68a JB |
782 | In order to build recursive types, it's inevitable that we'll need |
783 | to update types in place --- but this sort of indiscriminate | |
784 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
785 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
786 | clear if more steps are needed. */ | |
5212577a | 787 | |
dd6bda65 DJ |
788 | void |
789 | replace_type (struct type *ntype, struct type *type) | |
790 | { | |
ab5d3da6 | 791 | struct type *chain; |
dd6bda65 | 792 | |
ad766c0a JB |
793 | /* These two types had better be in the same objfile. Otherwise, |
794 | the assignment of one type's main type structure to the other | |
795 | will produce a type with references to objects (names; field | |
796 | lists; etc.) allocated on an objfile other than its own. */ | |
e46dd0f4 | 797 | gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (type)); |
ad766c0a | 798 | |
2fdde8f8 | 799 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 800 | |
7ba81444 MS |
801 | /* The type length is not a part of the main type. Update it for |
802 | each type on the variant chain. */ | |
ab5d3da6 | 803 | chain = ntype; |
5f61c20e JK |
804 | do |
805 | { | |
806 | /* Assert that this element of the chain has no address-class bits | |
807 | set in its flags. Such type variants might have type lengths | |
808 | which are supposed to be different from the non-address-class | |
809 | variants. This assertion shouldn't ever be triggered because | |
810 | symbol readers which do construct address-class variants don't | |
811 | call replace_type(). */ | |
812 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
813 | ||
814 | TYPE_LENGTH (chain) = TYPE_LENGTH (type); | |
815 | chain = TYPE_CHAIN (chain); | |
816 | } | |
817 | while (ntype != chain); | |
ab5d3da6 | 818 | |
2fdde8f8 DJ |
819 | /* Assert that the two types have equivalent instance qualifiers. |
820 | This should be true for at least all of our debug readers. */ | |
821 | gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type)); | |
dd6bda65 DJ |
822 | } |
823 | ||
c906108c SS |
824 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
825 | May need to construct such a type if this is the first use. | |
826 | The TYPE is the type of the member. The DOMAIN is the type | |
827 | of the aggregate that the member belongs to. */ | |
828 | ||
829 | struct type * | |
0d5de010 | 830 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 831 | { |
52f0bd74 | 832 | struct type *mtype; |
c906108c | 833 | |
e9bb382b | 834 | mtype = alloc_type_copy (type); |
0d5de010 | 835 | smash_to_memberptr_type (mtype, domain, type); |
c16abbde | 836 | return mtype; |
c906108c SS |
837 | } |
838 | ||
0d5de010 DJ |
839 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
840 | ||
841 | struct type * | |
842 | lookup_methodptr_type (struct type *to_type) | |
843 | { | |
844 | struct type *mtype; | |
845 | ||
e9bb382b | 846 | mtype = alloc_type_copy (to_type); |
0b92b5bb | 847 | smash_to_methodptr_type (mtype, to_type); |
0d5de010 DJ |
848 | return mtype; |
849 | } | |
850 | ||
7ba81444 MS |
851 | /* Allocate a stub method whose return type is TYPE. This apparently |
852 | happens for speed of symbol reading, since parsing out the | |
853 | arguments to the method is cpu-intensive, the way we are doing it. | |
854 | So, we will fill in arguments later. This always returns a fresh | |
855 | type. */ | |
c906108c SS |
856 | |
857 | struct type * | |
fba45db2 | 858 | allocate_stub_method (struct type *type) |
c906108c SS |
859 | { |
860 | struct type *mtype; | |
861 | ||
e9bb382b UW |
862 | mtype = alloc_type_copy (type); |
863 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; | |
864 | TYPE_LENGTH (mtype) = 1; | |
865 | TYPE_STUB (mtype) = 1; | |
c906108c | 866 | TYPE_TARGET_TYPE (mtype) = type; |
4bfb94b8 | 867 | /* TYPE_SELF_TYPE (mtype) = unknown yet */ |
c16abbde | 868 | return mtype; |
c906108c SS |
869 | } |
870 | ||
0f59d5fc PA |
871 | /* See gdbtypes.h. */ |
872 | ||
873 | bool | |
874 | operator== (const dynamic_prop &l, const dynamic_prop &r) | |
875 | { | |
876 | if (l.kind != r.kind) | |
877 | return false; | |
878 | ||
879 | switch (l.kind) | |
880 | { | |
881 | case PROP_UNDEFINED: | |
882 | return true; | |
883 | case PROP_CONST: | |
884 | return l.data.const_val == r.data.const_val; | |
885 | case PROP_ADDR_OFFSET: | |
886 | case PROP_LOCEXPR: | |
887 | case PROP_LOCLIST: | |
888 | return l.data.baton == r.data.baton; | |
889 | } | |
890 | ||
891 | gdb_assert_not_reached ("unhandled dynamic_prop kind"); | |
892 | } | |
893 | ||
894 | /* See gdbtypes.h. */ | |
895 | ||
896 | bool | |
897 | operator== (const range_bounds &l, const range_bounds &r) | |
898 | { | |
899 | #define FIELD_EQ(FIELD) (l.FIELD == r.FIELD) | |
900 | ||
901 | return (FIELD_EQ (low) | |
902 | && FIELD_EQ (high) | |
903 | && FIELD_EQ (flag_upper_bound_is_count) | |
4e962e74 TT |
904 | && FIELD_EQ (flag_bound_evaluated) |
905 | && FIELD_EQ (bias)); | |
0f59d5fc PA |
906 | |
907 | #undef FIELD_EQ | |
908 | } | |
909 | ||
729efb13 SA |
910 | /* Create a range type with a dynamic range from LOW_BOUND to |
911 | HIGH_BOUND, inclusive. See create_range_type for further details. */ | |
c906108c SS |
912 | |
913 | struct type * | |
729efb13 SA |
914 | create_range_type (struct type *result_type, struct type *index_type, |
915 | const struct dynamic_prop *low_bound, | |
4e962e74 TT |
916 | const struct dynamic_prop *high_bound, |
917 | LONGEST bias) | |
c906108c | 918 | { |
b86352cf AB |
919 | /* The INDEX_TYPE should be a type capable of holding the upper and lower |
920 | bounds, as such a zero sized, or void type makes no sense. */ | |
921 | gdb_assert (TYPE_CODE (index_type) != TYPE_CODE_VOID); | |
922 | gdb_assert (TYPE_LENGTH (index_type) > 0); | |
923 | ||
c906108c | 924 | if (result_type == NULL) |
e9bb382b | 925 | result_type = alloc_type_copy (index_type); |
c906108c SS |
926 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; |
927 | TYPE_TARGET_TYPE (result_type) = index_type; | |
74a9bb82 | 928 | if (TYPE_STUB (index_type)) |
876cecd0 | 929 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c SS |
930 | else |
931 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
729efb13 | 932 | |
43bbcdc2 PH |
933 | TYPE_RANGE_DATA (result_type) = (struct range_bounds *) |
934 | TYPE_ZALLOC (result_type, sizeof (struct range_bounds)); | |
729efb13 SA |
935 | TYPE_RANGE_DATA (result_type)->low = *low_bound; |
936 | TYPE_RANGE_DATA (result_type)->high = *high_bound; | |
4e962e74 | 937 | TYPE_RANGE_DATA (result_type)->bias = bias; |
c906108c | 938 | |
5bbd8269 AB |
939 | /* Initialize the stride to be a constant, the value will already be zero |
940 | thanks to the use of TYPE_ZALLOC above. */ | |
941 | TYPE_RANGE_DATA (result_type)->stride.kind = PROP_CONST; | |
942 | ||
729efb13 | 943 | if (low_bound->kind == PROP_CONST && low_bound->data.const_val >= 0) |
876cecd0 | 944 | TYPE_UNSIGNED (result_type) = 1; |
c906108c | 945 | |
45e44d27 JB |
946 | /* Ada allows the declaration of range types whose upper bound is |
947 | less than the lower bound, so checking the lower bound is not | |
948 | enough. Make sure we do not mark a range type whose upper bound | |
949 | is negative as unsigned. */ | |
950 | if (high_bound->kind == PROP_CONST && high_bound->data.const_val < 0) | |
951 | TYPE_UNSIGNED (result_type) = 0; | |
952 | ||
a05cf17a TT |
953 | TYPE_ENDIANITY_NOT_DEFAULT (result_type) |
954 | = TYPE_ENDIANITY_NOT_DEFAULT (index_type); | |
955 | ||
262452ec | 956 | return result_type; |
c906108c SS |
957 | } |
958 | ||
5bbd8269 AB |
959 | /* See gdbtypes.h. */ |
960 | ||
961 | struct type * | |
962 | create_range_type_with_stride (struct type *result_type, | |
963 | struct type *index_type, | |
964 | const struct dynamic_prop *low_bound, | |
965 | const struct dynamic_prop *high_bound, | |
966 | LONGEST bias, | |
967 | const struct dynamic_prop *stride, | |
968 | bool byte_stride_p) | |
969 | { | |
970 | result_type = create_range_type (result_type, index_type, low_bound, | |
971 | high_bound, bias); | |
972 | ||
973 | gdb_assert (stride != nullptr); | |
974 | TYPE_RANGE_DATA (result_type)->stride = *stride; | |
975 | TYPE_RANGE_DATA (result_type)->flag_is_byte_stride = byte_stride_p; | |
976 | ||
977 | return result_type; | |
978 | } | |
979 | ||
980 | ||
981 | ||
729efb13 SA |
982 | /* Create a range type using either a blank type supplied in |
983 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
984 | INDEX_TYPE. | |
985 | ||
986 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND | |
987 | to HIGH_BOUND, inclusive. | |
988 | ||
989 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
990 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
991 | ||
992 | struct type * | |
993 | create_static_range_type (struct type *result_type, struct type *index_type, | |
994 | LONGEST low_bound, LONGEST high_bound) | |
995 | { | |
996 | struct dynamic_prop low, high; | |
997 | ||
998 | low.kind = PROP_CONST; | |
999 | low.data.const_val = low_bound; | |
1000 | ||
1001 | high.kind = PROP_CONST; | |
1002 | high.data.const_val = high_bound; | |
1003 | ||
4e962e74 | 1004 | result_type = create_range_type (result_type, index_type, &low, &high, 0); |
729efb13 SA |
1005 | |
1006 | return result_type; | |
1007 | } | |
1008 | ||
80180f79 SA |
1009 | /* Predicate tests whether BOUNDS are static. Returns 1 if all bounds values |
1010 | are static, otherwise returns 0. */ | |
1011 | ||
5bbd8269 | 1012 | static bool |
80180f79 SA |
1013 | has_static_range (const struct range_bounds *bounds) |
1014 | { | |
5bbd8269 AB |
1015 | /* If the range doesn't have a defined stride then its stride field will |
1016 | be initialized to the constant 0. */ | |
80180f79 | 1017 | return (bounds->low.kind == PROP_CONST |
5bbd8269 AB |
1018 | && bounds->high.kind == PROP_CONST |
1019 | && bounds->stride.kind == PROP_CONST); | |
80180f79 SA |
1020 | } |
1021 | ||
1022 | ||
7ba81444 MS |
1023 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
1024 | TYPE. Return 1 if type is a range type, 0 if it is discrete (and | |
1025 | bounds will fit in LONGEST), or -1 otherwise. */ | |
c906108c SS |
1026 | |
1027 | int | |
fba45db2 | 1028 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c | 1029 | { |
f168693b | 1030 | type = check_typedef (type); |
c906108c SS |
1031 | switch (TYPE_CODE (type)) |
1032 | { | |
1033 | case TYPE_CODE_RANGE: | |
1034 | *lowp = TYPE_LOW_BOUND (type); | |
1035 | *highp = TYPE_HIGH_BOUND (type); | |
1036 | return 1; | |
1037 | case TYPE_CODE_ENUM: | |
1038 | if (TYPE_NFIELDS (type) > 0) | |
1039 | { | |
1040 | /* The enums may not be sorted by value, so search all | |
0963b4bd | 1041 | entries. */ |
c906108c SS |
1042 | int i; |
1043 | ||
14e75d8e | 1044 | *lowp = *highp = TYPE_FIELD_ENUMVAL (type, 0); |
c906108c SS |
1045 | for (i = 0; i < TYPE_NFIELDS (type); i++) |
1046 | { | |
14e75d8e JK |
1047 | if (TYPE_FIELD_ENUMVAL (type, i) < *lowp) |
1048 | *lowp = TYPE_FIELD_ENUMVAL (type, i); | |
1049 | if (TYPE_FIELD_ENUMVAL (type, i) > *highp) | |
1050 | *highp = TYPE_FIELD_ENUMVAL (type, i); | |
c906108c SS |
1051 | } |
1052 | ||
7ba81444 | 1053 | /* Set unsigned indicator if warranted. */ |
c5aa993b | 1054 | if (*lowp >= 0) |
c906108c | 1055 | { |
876cecd0 | 1056 | TYPE_UNSIGNED (type) = 1; |
c906108c SS |
1057 | } |
1058 | } | |
1059 | else | |
1060 | { | |
1061 | *lowp = 0; | |
1062 | *highp = -1; | |
1063 | } | |
1064 | return 0; | |
1065 | case TYPE_CODE_BOOL: | |
1066 | *lowp = 0; | |
1067 | *highp = 1; | |
1068 | return 0; | |
1069 | case TYPE_CODE_INT: | |
c5aa993b | 1070 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
1071 | return -1; |
1072 | if (!TYPE_UNSIGNED (type)) | |
1073 | { | |
c5aa993b | 1074 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
1075 | *highp = -*lowp - 1; |
1076 | return 0; | |
1077 | } | |
86a73007 | 1078 | /* fall through */ |
c906108c SS |
1079 | case TYPE_CODE_CHAR: |
1080 | *lowp = 0; | |
1081 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 | 1082 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
7ba81444 | 1083 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
c906108c SS |
1084 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
1085 | *highp = (*highp - 1) | *highp; | |
1086 | return 0; | |
1087 | default: | |
1088 | return -1; | |
1089 | } | |
1090 | } | |
1091 | ||
dbc98a8b KW |
1092 | /* Assuming TYPE is a simple, non-empty array type, compute its upper |
1093 | and lower bound. Save the low bound into LOW_BOUND if not NULL. | |
1094 | Save the high bound into HIGH_BOUND if not NULL. | |
1095 | ||
0963b4bd | 1096 | Return 1 if the operation was successful. Return zero otherwise, |
dbc98a8b KW |
1097 | in which case the values of LOW_BOUND and HIGH_BOUNDS are unmodified. |
1098 | ||
1099 | We now simply use get_discrete_bounds call to get the values | |
1100 | of the low and high bounds. | |
1101 | get_discrete_bounds can return three values: | |
1102 | 1, meaning that index is a range, | |
1103 | 0, meaning that index is a discrete type, | |
1104 | or -1 for failure. */ | |
1105 | ||
1106 | int | |
1107 | get_array_bounds (struct type *type, LONGEST *low_bound, LONGEST *high_bound) | |
1108 | { | |
1109 | struct type *index = TYPE_INDEX_TYPE (type); | |
1110 | LONGEST low = 0; | |
1111 | LONGEST high = 0; | |
1112 | int res; | |
1113 | ||
1114 | if (index == NULL) | |
1115 | return 0; | |
1116 | ||
1117 | res = get_discrete_bounds (index, &low, &high); | |
1118 | if (res == -1) | |
1119 | return 0; | |
1120 | ||
1121 | /* Check if the array bounds are undefined. */ | |
1122 | if (res == 1 | |
1123 | && ((low_bound && TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED (type)) | |
1124 | || (high_bound && TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type)))) | |
1125 | return 0; | |
1126 | ||
1127 | if (low_bound) | |
1128 | *low_bound = low; | |
1129 | ||
1130 | if (high_bound) | |
1131 | *high_bound = high; | |
1132 | ||
1133 | return 1; | |
1134 | } | |
1135 | ||
aa715135 JG |
1136 | /* Assuming that TYPE is a discrete type and VAL is a valid integer |
1137 | representation of a value of this type, save the corresponding | |
1138 | position number in POS. | |
1139 | ||
1140 | Its differs from VAL only in the case of enumeration types. In | |
1141 | this case, the position number of the value of the first listed | |
1142 | enumeration literal is zero; the position number of the value of | |
1143 | each subsequent enumeration literal is one more than that of its | |
1144 | predecessor in the list. | |
1145 | ||
1146 | Return 1 if the operation was successful. Return zero otherwise, | |
1147 | in which case the value of POS is unmodified. | |
1148 | */ | |
1149 | ||
1150 | int | |
1151 | discrete_position (struct type *type, LONGEST val, LONGEST *pos) | |
1152 | { | |
1153 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) | |
1154 | { | |
1155 | int i; | |
1156 | ||
1157 | for (i = 0; i < TYPE_NFIELDS (type); i += 1) | |
1158 | { | |
1159 | if (val == TYPE_FIELD_ENUMVAL (type, i)) | |
1160 | { | |
1161 | *pos = i; | |
1162 | return 1; | |
1163 | } | |
1164 | } | |
1165 | /* Invalid enumeration value. */ | |
1166 | return 0; | |
1167 | } | |
1168 | else | |
1169 | { | |
1170 | *pos = val; | |
1171 | return 1; | |
1172 | } | |
1173 | } | |
1174 | ||
7ba81444 MS |
1175 | /* Create an array type using either a blank type supplied in |
1176 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
1177 | RANGE_TYPE. | |
c906108c SS |
1178 | |
1179 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
1180 | RANGE_TYPE. | |
1181 | ||
a405673c JB |
1182 | BYTE_STRIDE_PROP, when not NULL, provides the array's byte stride. |
1183 | This byte stride property is added to the resulting array type | |
1184 | as a DYN_PROP_BYTE_STRIDE. As a consequence, the BYTE_STRIDE_PROP | |
1185 | argument can only be used to create types that are objfile-owned | |
1186 | (see add_dyn_prop), meaning that either this function must be called | |
1187 | with an objfile-owned RESULT_TYPE, or an objfile-owned RANGE_TYPE. | |
1188 | ||
1189 | BIT_STRIDE is taken into account only when BYTE_STRIDE_PROP is NULL. | |
dc53a7ad JB |
1190 | If BIT_STRIDE is not zero, build a packed array type whose element |
1191 | size is BIT_STRIDE. Otherwise, ignore this parameter. | |
1192 | ||
7ba81444 MS |
1193 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1194 | sure it is TYPE_CODE_UNDEF before we bash it into an array | |
1195 | type? */ | |
c906108c SS |
1196 | |
1197 | struct type * | |
dc53a7ad JB |
1198 | create_array_type_with_stride (struct type *result_type, |
1199 | struct type *element_type, | |
1200 | struct type *range_type, | |
a405673c | 1201 | struct dynamic_prop *byte_stride_prop, |
dc53a7ad | 1202 | unsigned int bit_stride) |
c906108c | 1203 | { |
a405673c JB |
1204 | if (byte_stride_prop != NULL |
1205 | && byte_stride_prop->kind == PROP_CONST) | |
1206 | { | |
1207 | /* The byte stride is actually not dynamic. Pretend we were | |
1208 | called with bit_stride set instead of byte_stride_prop. | |
1209 | This will give us the same result type, while avoiding | |
1210 | the need to handle this as a special case. */ | |
1211 | bit_stride = byte_stride_prop->data.const_val * 8; | |
1212 | byte_stride_prop = NULL; | |
1213 | } | |
1214 | ||
c906108c | 1215 | if (result_type == NULL) |
e9bb382b UW |
1216 | result_type = alloc_type_copy (range_type); |
1217 | ||
c906108c SS |
1218 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
1219 | TYPE_TARGET_TYPE (result_type) = element_type; | |
a405673c JB |
1220 | if (byte_stride_prop == NULL |
1221 | && has_static_range (TYPE_RANGE_DATA (range_type)) | |
b4a7fcab JB |
1222 | && (!type_not_associated (result_type) |
1223 | && !type_not_allocated (result_type))) | |
80180f79 SA |
1224 | { |
1225 | LONGEST low_bound, high_bound; | |
5bbd8269 AB |
1226 | unsigned int stride; |
1227 | ||
1228 | /* If the array itself doesn't provide a stride value then take | |
1229 | whatever stride the range provides. Don't update BIT_STRIDE as | |
1230 | we don't want to place the stride value from the range into this | |
1231 | arrays bit size field. */ | |
1232 | stride = bit_stride; | |
1233 | if (stride == 0) | |
1234 | stride = TYPE_BIT_STRIDE (range_type); | |
80180f79 SA |
1235 | |
1236 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
1237 | low_bound = high_bound = 0; | |
f168693b | 1238 | element_type = check_typedef (element_type); |
80180f79 SA |
1239 | /* Be careful when setting the array length. Ada arrays can be |
1240 | empty arrays with the high_bound being smaller than the low_bound. | |
1241 | In such cases, the array length should be zero. */ | |
1242 | if (high_bound < low_bound) | |
1243 | TYPE_LENGTH (result_type) = 0; | |
5bbd8269 | 1244 | else if (stride > 0) |
80180f79 | 1245 | TYPE_LENGTH (result_type) = |
5bbd8269 | 1246 | (stride * (high_bound - low_bound + 1) + 7) / 8; |
80180f79 SA |
1247 | else |
1248 | TYPE_LENGTH (result_type) = | |
1249 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
1250 | } | |
ab0d6e0d | 1251 | else |
80180f79 SA |
1252 | { |
1253 | /* This type is dynamic and its length needs to be computed | |
1254 | on demand. In the meantime, avoid leaving the TYPE_LENGTH | |
1255 | undefined by setting it to zero. Although we are not expected | |
1256 | to trust TYPE_LENGTH in this case, setting the size to zero | |
1257 | allows us to avoid allocating objects of random sizes in case | |
1258 | we accidently do. */ | |
1259 | TYPE_LENGTH (result_type) = 0; | |
1260 | } | |
1261 | ||
c906108c SS |
1262 | TYPE_NFIELDS (result_type) = 1; |
1263 | TYPE_FIELDS (result_type) = | |
1deafd4e | 1264 | (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); |
262452ec | 1265 | TYPE_INDEX_TYPE (result_type) = range_type; |
a405673c | 1266 | if (byte_stride_prop != NULL) |
50a82047 | 1267 | add_dyn_prop (DYN_PROP_BYTE_STRIDE, *byte_stride_prop, result_type); |
a405673c | 1268 | else if (bit_stride > 0) |
dc53a7ad | 1269 | TYPE_FIELD_BITSIZE (result_type, 0) = bit_stride; |
c906108c | 1270 | |
a9ff5f12 | 1271 | /* TYPE_TARGET_STUB will take care of zero length arrays. */ |
c906108c | 1272 | if (TYPE_LENGTH (result_type) == 0) |
876cecd0 | 1273 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c | 1274 | |
c16abbde | 1275 | return result_type; |
c906108c SS |
1276 | } |
1277 | ||
dc53a7ad JB |
1278 | /* Same as create_array_type_with_stride but with no bit_stride |
1279 | (BIT_STRIDE = 0), thus building an unpacked array. */ | |
1280 | ||
1281 | struct type * | |
1282 | create_array_type (struct type *result_type, | |
1283 | struct type *element_type, | |
1284 | struct type *range_type) | |
1285 | { | |
1286 | return create_array_type_with_stride (result_type, element_type, | |
a405673c | 1287 | range_type, NULL, 0); |
dc53a7ad JB |
1288 | } |
1289 | ||
e3506a9f UW |
1290 | struct type * |
1291 | lookup_array_range_type (struct type *element_type, | |
63375b74 | 1292 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f | 1293 | { |
929b5ad4 JB |
1294 | struct type *index_type; |
1295 | struct type *range_type; | |
1296 | ||
1297 | if (TYPE_OBJFILE_OWNED (element_type)) | |
1298 | index_type = objfile_type (TYPE_OWNER (element_type).objfile)->builtin_int; | |
1299 | else | |
1300 | index_type = builtin_type (get_type_arch (element_type))->builtin_int; | |
1301 | range_type = create_static_range_type (NULL, index_type, | |
1302 | low_bound, high_bound); | |
d8734c88 | 1303 | |
e3506a9f UW |
1304 | return create_array_type (NULL, element_type, range_type); |
1305 | } | |
1306 | ||
7ba81444 MS |
1307 | /* Create a string type using either a blank type supplied in |
1308 | RESULT_TYPE, or creating a new type. String types are similar | |
1309 | enough to array of char types that we can use create_array_type to | |
1310 | build the basic type and then bash it into a string type. | |
c906108c SS |
1311 | |
1312 | For fixed length strings, the range type contains 0 as the lower | |
1313 | bound and the length of the string minus one as the upper bound. | |
1314 | ||
7ba81444 MS |
1315 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1316 | sure it is TYPE_CODE_UNDEF before we bash it into a string | |
1317 | type? */ | |
c906108c SS |
1318 | |
1319 | struct type * | |
3b7538c0 UW |
1320 | create_string_type (struct type *result_type, |
1321 | struct type *string_char_type, | |
7ba81444 | 1322 | struct type *range_type) |
c906108c SS |
1323 | { |
1324 | result_type = create_array_type (result_type, | |
f290d38e | 1325 | string_char_type, |
c906108c SS |
1326 | range_type); |
1327 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
c16abbde | 1328 | return result_type; |
c906108c SS |
1329 | } |
1330 | ||
e3506a9f UW |
1331 | struct type * |
1332 | lookup_string_range_type (struct type *string_char_type, | |
63375b74 | 1333 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f UW |
1334 | { |
1335 | struct type *result_type; | |
d8734c88 | 1336 | |
e3506a9f UW |
1337 | result_type = lookup_array_range_type (string_char_type, |
1338 | low_bound, high_bound); | |
1339 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
1340 | return result_type; | |
1341 | } | |
1342 | ||
c906108c | 1343 | struct type * |
fba45db2 | 1344 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c | 1345 | { |
c906108c | 1346 | if (result_type == NULL) |
e9bb382b UW |
1347 | result_type = alloc_type_copy (domain_type); |
1348 | ||
c906108c SS |
1349 | TYPE_CODE (result_type) = TYPE_CODE_SET; |
1350 | TYPE_NFIELDS (result_type) = 1; | |
224c3ddb SM |
1351 | TYPE_FIELDS (result_type) |
1352 | = (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); | |
c906108c | 1353 | |
74a9bb82 | 1354 | if (!TYPE_STUB (domain_type)) |
c906108c | 1355 | { |
f9780d5b | 1356 | LONGEST low_bound, high_bound, bit_length; |
d8734c88 | 1357 | |
c906108c SS |
1358 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
1359 | low_bound = high_bound = 0; | |
1360 | bit_length = high_bound - low_bound + 1; | |
1361 | TYPE_LENGTH (result_type) | |
1362 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
f9780d5b | 1363 | if (low_bound >= 0) |
876cecd0 | 1364 | TYPE_UNSIGNED (result_type) = 1; |
c906108c SS |
1365 | } |
1366 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
1367 | ||
c16abbde | 1368 | return result_type; |
c906108c SS |
1369 | } |
1370 | ||
ea37ba09 DJ |
1371 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
1372 | and any array types nested inside it. */ | |
1373 | ||
1374 | void | |
1375 | make_vector_type (struct type *array_type) | |
1376 | { | |
1377 | struct type *inner_array, *elt_type; | |
1378 | int flags; | |
1379 | ||
1380 | /* Find the innermost array type, in case the array is | |
1381 | multi-dimensional. */ | |
1382 | inner_array = array_type; | |
1383 | while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY) | |
1384 | inner_array = TYPE_TARGET_TYPE (inner_array); | |
1385 | ||
1386 | elt_type = TYPE_TARGET_TYPE (inner_array); | |
1387 | if (TYPE_CODE (elt_type) == TYPE_CODE_INT) | |
1388 | { | |
2844d6b5 | 1389 | flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_INSTANCE_FLAG_NOTTEXT; |
ea37ba09 DJ |
1390 | elt_type = make_qualified_type (elt_type, flags, NULL); |
1391 | TYPE_TARGET_TYPE (inner_array) = elt_type; | |
1392 | } | |
1393 | ||
876cecd0 | 1394 | TYPE_VECTOR (array_type) = 1; |
ea37ba09 DJ |
1395 | } |
1396 | ||
794ac428 | 1397 | struct type * |
ac3aafc7 EZ |
1398 | init_vector_type (struct type *elt_type, int n) |
1399 | { | |
1400 | struct type *array_type; | |
d8734c88 | 1401 | |
e3506a9f | 1402 | array_type = lookup_array_range_type (elt_type, 0, n - 1); |
ea37ba09 | 1403 | make_vector_type (array_type); |
ac3aafc7 EZ |
1404 | return array_type; |
1405 | } | |
1406 | ||
09e2d7c7 DE |
1407 | /* Internal routine called by TYPE_SELF_TYPE to return the type that TYPE |
1408 | belongs to. In c++ this is the class of "this", but TYPE_THIS_TYPE is too | |
1409 | confusing. "self" is a common enough replacement for "this". | |
1410 | TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or | |
1411 | TYPE_CODE_METHOD. */ | |
1412 | ||
1413 | struct type * | |
1414 | internal_type_self_type (struct type *type) | |
1415 | { | |
1416 | switch (TYPE_CODE (type)) | |
1417 | { | |
1418 | case TYPE_CODE_METHODPTR: | |
1419 | case TYPE_CODE_MEMBERPTR: | |
eaaf76ab DE |
1420 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) |
1421 | return NULL; | |
09e2d7c7 DE |
1422 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE); |
1423 | return TYPE_MAIN_TYPE (type)->type_specific.self_type; | |
1424 | case TYPE_CODE_METHOD: | |
eaaf76ab DE |
1425 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) |
1426 | return NULL; | |
09e2d7c7 DE |
1427 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC); |
1428 | return TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type; | |
1429 | default: | |
1430 | gdb_assert_not_reached ("bad type"); | |
1431 | } | |
1432 | } | |
1433 | ||
1434 | /* Set the type of the class that TYPE belongs to. | |
1435 | In c++ this is the class of "this". | |
1436 | TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or | |
1437 | TYPE_CODE_METHOD. */ | |
1438 | ||
1439 | void | |
1440 | set_type_self_type (struct type *type, struct type *self_type) | |
1441 | { | |
1442 | switch (TYPE_CODE (type)) | |
1443 | { | |
1444 | case TYPE_CODE_METHODPTR: | |
1445 | case TYPE_CODE_MEMBERPTR: | |
1446 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) | |
1447 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_SELF_TYPE; | |
1448 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE); | |
1449 | TYPE_MAIN_TYPE (type)->type_specific.self_type = self_type; | |
1450 | break; | |
1451 | case TYPE_CODE_METHOD: | |
1452 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) | |
1453 | INIT_FUNC_SPECIFIC (type); | |
1454 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC); | |
1455 | TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type = self_type; | |
1456 | break; | |
1457 | default: | |
1458 | gdb_assert_not_reached ("bad type"); | |
1459 | } | |
1460 | } | |
1461 | ||
1462 | /* Smash TYPE to be a type of pointers to members of SELF_TYPE with type | |
0d5de010 DJ |
1463 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a |
1464 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
1465 | TYPE doesn't include the offset (that's the value of the MEMBER | |
1466 | itself), but does include the structure type into which it points | |
1467 | (for some reason). | |
c906108c | 1468 | |
7ba81444 MS |
1469 | When "smashing" the type, we preserve the objfile that the old type |
1470 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1471 | allocated. */ |
1472 | ||
1473 | void | |
09e2d7c7 | 1474 | smash_to_memberptr_type (struct type *type, struct type *self_type, |
0d5de010 | 1475 | struct type *to_type) |
c906108c | 1476 | { |
2fdde8f8 | 1477 | smash_type (type); |
09e2d7c7 | 1478 | TYPE_CODE (type) = TYPE_CODE_MEMBERPTR; |
c906108c | 1479 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1480 | set_type_self_type (type, self_type); |
0d5de010 DJ |
1481 | /* Assume that a data member pointer is the same size as a normal |
1482 | pointer. */ | |
50810684 UW |
1483 | TYPE_LENGTH (type) |
1484 | = gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT; | |
c906108c SS |
1485 | } |
1486 | ||
0b92b5bb TT |
1487 | /* Smash TYPE to be a type of pointer to methods type TO_TYPE. |
1488 | ||
1489 | When "smashing" the type, we preserve the objfile that the old type | |
1490 | pointed to, since we aren't changing where the type is actually | |
1491 | allocated. */ | |
1492 | ||
1493 | void | |
1494 | smash_to_methodptr_type (struct type *type, struct type *to_type) | |
1495 | { | |
1496 | smash_type (type); | |
09e2d7c7 | 1497 | TYPE_CODE (type) = TYPE_CODE_METHODPTR; |
0b92b5bb | 1498 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1499 | set_type_self_type (type, TYPE_SELF_TYPE (to_type)); |
0b92b5bb | 1500 | TYPE_LENGTH (type) = cplus_method_ptr_size (to_type); |
0b92b5bb TT |
1501 | } |
1502 | ||
09e2d7c7 | 1503 | /* Smash TYPE to be a type of method of SELF_TYPE with type TO_TYPE. |
c906108c SS |
1504 | METHOD just means `function that gets an extra "this" argument'. |
1505 | ||
7ba81444 MS |
1506 | When "smashing" the type, we preserve the objfile that the old type |
1507 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1508 | allocated. */ |
1509 | ||
1510 | void | |
09e2d7c7 | 1511 | smash_to_method_type (struct type *type, struct type *self_type, |
ad2f7632 DJ |
1512 | struct type *to_type, struct field *args, |
1513 | int nargs, int varargs) | |
c906108c | 1514 | { |
2fdde8f8 | 1515 | smash_type (type); |
09e2d7c7 | 1516 | TYPE_CODE (type) = TYPE_CODE_METHOD; |
c906108c | 1517 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1518 | set_type_self_type (type, self_type); |
ad2f7632 DJ |
1519 | TYPE_FIELDS (type) = args; |
1520 | TYPE_NFIELDS (type) = nargs; | |
1521 | if (varargs) | |
876cecd0 | 1522 | TYPE_VARARGS (type) = 1; |
c906108c | 1523 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
c906108c SS |
1524 | } |
1525 | ||
a737d952 | 1526 | /* A wrapper of TYPE_NAME which calls error if the type is anonymous. |
d8228535 JK |
1527 | Since GCC PR debug/47510 DWARF provides associated information to detect the |
1528 | anonymous class linkage name from its typedef. | |
1529 | ||
1530 | Parameter TYPE should not yet have CHECK_TYPEDEF applied, this function will | |
1531 | apply it itself. */ | |
1532 | ||
1533 | const char * | |
a737d952 | 1534 | type_name_or_error (struct type *type) |
d8228535 JK |
1535 | { |
1536 | struct type *saved_type = type; | |
1537 | const char *name; | |
1538 | struct objfile *objfile; | |
1539 | ||
f168693b | 1540 | type = check_typedef (type); |
d8228535 | 1541 | |
a737d952 | 1542 | name = TYPE_NAME (type); |
d8228535 JK |
1543 | if (name != NULL) |
1544 | return name; | |
1545 | ||
a737d952 | 1546 | name = TYPE_NAME (saved_type); |
d8228535 JK |
1547 | objfile = TYPE_OBJFILE (saved_type); |
1548 | error (_("Invalid anonymous type %s [in module %s], GCC PR debug/47510 bug?"), | |
4262abfb JK |
1549 | name ? name : "<anonymous>", |
1550 | objfile ? objfile_name (objfile) : "<arch>"); | |
d8228535 JK |
1551 | } |
1552 | ||
7ba81444 MS |
1553 | /* Lookup a typedef or primitive type named NAME, visible in lexical |
1554 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
1555 | suitably defined. */ | |
c906108c SS |
1556 | |
1557 | struct type * | |
e6c014f2 | 1558 | lookup_typename (const struct language_defn *language, |
b858499d | 1559 | const char *name, |
34eaf542 | 1560 | const struct block *block, int noerr) |
c906108c | 1561 | { |
52f0bd74 | 1562 | struct symbol *sym; |
c906108c | 1563 | |
1994afbf | 1564 | sym = lookup_symbol_in_language (name, block, VAR_DOMAIN, |
d12307c1 | 1565 | language->la_language, NULL).symbol; |
c51fe631 DE |
1566 | if (sym != NULL && SYMBOL_CLASS (sym) == LOC_TYPEDEF) |
1567 | return SYMBOL_TYPE (sym); | |
1568 | ||
c51fe631 DE |
1569 | if (noerr) |
1570 | return NULL; | |
1571 | error (_("No type named %s."), name); | |
c906108c SS |
1572 | } |
1573 | ||
1574 | struct type * | |
e6c014f2 | 1575 | lookup_unsigned_typename (const struct language_defn *language, |
b858499d | 1576 | const char *name) |
c906108c | 1577 | { |
224c3ddb | 1578 | char *uns = (char *) alloca (strlen (name) + 10); |
c906108c SS |
1579 | |
1580 | strcpy (uns, "unsigned "); | |
1581 | strcpy (uns + 9, name); | |
b858499d | 1582 | return lookup_typename (language, uns, NULL, 0); |
c906108c SS |
1583 | } |
1584 | ||
1585 | struct type * | |
b858499d | 1586 | lookup_signed_typename (const struct language_defn *language, const char *name) |
c906108c SS |
1587 | { |
1588 | struct type *t; | |
224c3ddb | 1589 | char *uns = (char *) alloca (strlen (name) + 8); |
c906108c SS |
1590 | |
1591 | strcpy (uns, "signed "); | |
1592 | strcpy (uns + 7, name); | |
b858499d | 1593 | t = lookup_typename (language, uns, NULL, 1); |
7ba81444 | 1594 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
c906108c SS |
1595 | if (t != NULL) |
1596 | return t; | |
b858499d | 1597 | return lookup_typename (language, name, NULL, 0); |
c906108c SS |
1598 | } |
1599 | ||
1600 | /* Lookup a structure type named "struct NAME", | |
1601 | visible in lexical block BLOCK. */ | |
1602 | ||
1603 | struct type * | |
270140bd | 1604 | lookup_struct (const char *name, const struct block *block) |
c906108c | 1605 | { |
52f0bd74 | 1606 | struct symbol *sym; |
c906108c | 1607 | |
d12307c1 | 1608 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1609 | |
1610 | if (sym == NULL) | |
1611 | { | |
8a3fe4f8 | 1612 | error (_("No struct type named %s."), name); |
c906108c SS |
1613 | } |
1614 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1615 | { | |
7ba81444 MS |
1616 | error (_("This context has class, union or enum %s, not a struct."), |
1617 | name); | |
c906108c SS |
1618 | } |
1619 | return (SYMBOL_TYPE (sym)); | |
1620 | } | |
1621 | ||
1622 | /* Lookup a union type named "union NAME", | |
1623 | visible in lexical block BLOCK. */ | |
1624 | ||
1625 | struct type * | |
270140bd | 1626 | lookup_union (const char *name, const struct block *block) |
c906108c | 1627 | { |
52f0bd74 | 1628 | struct symbol *sym; |
c5aa993b | 1629 | struct type *t; |
c906108c | 1630 | |
d12307c1 | 1631 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1632 | |
1633 | if (sym == NULL) | |
8a3fe4f8 | 1634 | error (_("No union type named %s."), name); |
c906108c | 1635 | |
c5aa993b | 1636 | t = SYMBOL_TYPE (sym); |
c906108c SS |
1637 | |
1638 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
c16abbde | 1639 | return t; |
c906108c | 1640 | |
7ba81444 MS |
1641 | /* If we get here, it's not a union. */ |
1642 | error (_("This context has class, struct or enum %s, not a union."), | |
1643 | name); | |
c906108c SS |
1644 | } |
1645 | ||
c906108c SS |
1646 | /* Lookup an enum type named "enum NAME", |
1647 | visible in lexical block BLOCK. */ | |
1648 | ||
1649 | struct type * | |
270140bd | 1650 | lookup_enum (const char *name, const struct block *block) |
c906108c | 1651 | { |
52f0bd74 | 1652 | struct symbol *sym; |
c906108c | 1653 | |
d12307c1 | 1654 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1655 | if (sym == NULL) |
1656 | { | |
8a3fe4f8 | 1657 | error (_("No enum type named %s."), name); |
c906108c SS |
1658 | } |
1659 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
1660 | { | |
7ba81444 MS |
1661 | error (_("This context has class, struct or union %s, not an enum."), |
1662 | name); | |
c906108c SS |
1663 | } |
1664 | return (SYMBOL_TYPE (sym)); | |
1665 | } | |
1666 | ||
1667 | /* Lookup a template type named "template NAME<TYPE>", | |
1668 | visible in lexical block BLOCK. */ | |
1669 | ||
1670 | struct type * | |
61f4b350 | 1671 | lookup_template_type (const char *name, struct type *type, |
270140bd | 1672 | const struct block *block) |
c906108c SS |
1673 | { |
1674 | struct symbol *sym; | |
7ba81444 MS |
1675 | char *nam = (char *) |
1676 | alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4); | |
d8734c88 | 1677 | |
c906108c SS |
1678 | strcpy (nam, name); |
1679 | strcat (nam, "<"); | |
0004e5a2 | 1680 | strcat (nam, TYPE_NAME (type)); |
0963b4bd | 1681 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1682 | |
d12307c1 | 1683 | sym = lookup_symbol (nam, block, VAR_DOMAIN, 0).symbol; |
c906108c SS |
1684 | |
1685 | if (sym == NULL) | |
1686 | { | |
8a3fe4f8 | 1687 | error (_("No template type named %s."), name); |
c906108c SS |
1688 | } |
1689 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1690 | { | |
7ba81444 MS |
1691 | error (_("This context has class, union or enum %s, not a struct."), |
1692 | name); | |
c906108c SS |
1693 | } |
1694 | return (SYMBOL_TYPE (sym)); | |
1695 | } | |
1696 | ||
ef0bd204 | 1697 | /* See gdbtypes.h. */ |
c906108c | 1698 | |
ef0bd204 JB |
1699 | struct_elt |
1700 | lookup_struct_elt (struct type *type, const char *name, int noerr) | |
c906108c SS |
1701 | { |
1702 | int i; | |
1703 | ||
1704 | for (;;) | |
1705 | { | |
f168693b | 1706 | type = check_typedef (type); |
c906108c SS |
1707 | if (TYPE_CODE (type) != TYPE_CODE_PTR |
1708 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1709 | break; | |
1710 | type = TYPE_TARGET_TYPE (type); | |
1711 | } | |
1712 | ||
687d6395 MS |
1713 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
1714 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
c906108c | 1715 | { |
2f408ecb PA |
1716 | std::string type_name = type_to_string (type); |
1717 | error (_("Type %s is not a structure or union type."), | |
1718 | type_name.c_str ()); | |
c906108c SS |
1719 | } |
1720 | ||
c906108c SS |
1721 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) |
1722 | { | |
0d5cff50 | 1723 | const char *t_field_name = TYPE_FIELD_NAME (type, i); |
c906108c | 1724 | |
db577aea | 1725 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c | 1726 | { |
ef0bd204 | 1727 | return {&TYPE_FIELD (type, i), TYPE_FIELD_BITPOS (type, i)}; |
c906108c | 1728 | } |
f5a010c0 PM |
1729 | else if (!t_field_name || *t_field_name == '\0') |
1730 | { | |
ef0bd204 JB |
1731 | struct_elt elt |
1732 | = lookup_struct_elt (TYPE_FIELD_TYPE (type, i), name, 1); | |
1733 | if (elt.field != NULL) | |
1734 | { | |
1735 | elt.offset += TYPE_FIELD_BITPOS (type, i); | |
1736 | return elt; | |
1737 | } | |
f5a010c0 | 1738 | } |
c906108c SS |
1739 | } |
1740 | ||
1741 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1742 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1743 | { | |
ef0bd204 JB |
1744 | struct_elt elt = lookup_struct_elt (TYPE_BASECLASS (type, i), name, 1); |
1745 | if (elt.field != NULL) | |
1746 | return elt; | |
c906108c SS |
1747 | } |
1748 | ||
1749 | if (noerr) | |
ef0bd204 | 1750 | return {nullptr, 0}; |
c5aa993b | 1751 | |
2f408ecb PA |
1752 | std::string type_name = type_to_string (type); |
1753 | error (_("Type %s has no component named %s."), type_name.c_str (), name); | |
c906108c SS |
1754 | } |
1755 | ||
ef0bd204 JB |
1756 | /* See gdbtypes.h. */ |
1757 | ||
1758 | struct type * | |
1759 | lookup_struct_elt_type (struct type *type, const char *name, int noerr) | |
1760 | { | |
1761 | struct_elt elt = lookup_struct_elt (type, name, noerr); | |
1762 | if (elt.field != NULL) | |
1763 | return FIELD_TYPE (*elt.field); | |
1764 | else | |
1765 | return NULL; | |
1766 | } | |
1767 | ||
ed3ef339 DE |
1768 | /* Store in *MAX the largest number representable by unsigned integer type |
1769 | TYPE. */ | |
1770 | ||
1771 | void | |
1772 | get_unsigned_type_max (struct type *type, ULONGEST *max) | |
1773 | { | |
1774 | unsigned int n; | |
1775 | ||
f168693b | 1776 | type = check_typedef (type); |
ed3ef339 DE |
1777 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && TYPE_UNSIGNED (type)); |
1778 | gdb_assert (TYPE_LENGTH (type) <= sizeof (ULONGEST)); | |
1779 | ||
1780 | /* Written this way to avoid overflow. */ | |
1781 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1782 | *max = ((((ULONGEST) 1 << (n - 1)) - 1) << 1) | 1; | |
1783 | } | |
1784 | ||
1785 | /* Store in *MIN, *MAX the smallest and largest numbers representable by | |
1786 | signed integer type TYPE. */ | |
1787 | ||
1788 | void | |
1789 | get_signed_type_minmax (struct type *type, LONGEST *min, LONGEST *max) | |
1790 | { | |
1791 | unsigned int n; | |
1792 | ||
f168693b | 1793 | type = check_typedef (type); |
ed3ef339 DE |
1794 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && !TYPE_UNSIGNED (type)); |
1795 | gdb_assert (TYPE_LENGTH (type) <= sizeof (LONGEST)); | |
1796 | ||
1797 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1798 | *min = -((ULONGEST) 1 << (n - 1)); | |
1799 | *max = ((ULONGEST) 1 << (n - 1)) - 1; | |
1800 | } | |
1801 | ||
ae6ae975 DE |
1802 | /* Internal routine called by TYPE_VPTR_FIELDNO to return the value of |
1803 | cplus_stuff.vptr_fieldno. | |
1804 | ||
1805 | cplus_stuff is initialized to cplus_struct_default which does not | |
1806 | set vptr_fieldno to -1 for portability reasons (IWBN to use C99 | |
1807 | designated initializers). We cope with that here. */ | |
1808 | ||
1809 | int | |
1810 | internal_type_vptr_fieldno (struct type *type) | |
1811 | { | |
f168693b | 1812 | type = check_typedef (type); |
ae6ae975 DE |
1813 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1814 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1815 | if (!HAVE_CPLUS_STRUCT (type)) | |
1816 | return -1; | |
1817 | return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno; | |
1818 | } | |
1819 | ||
1820 | /* Set the value of cplus_stuff.vptr_fieldno. */ | |
1821 | ||
1822 | void | |
1823 | set_type_vptr_fieldno (struct type *type, int fieldno) | |
1824 | { | |
f168693b | 1825 | type = check_typedef (type); |
ae6ae975 DE |
1826 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1827 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1828 | if (!HAVE_CPLUS_STRUCT (type)) | |
1829 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
1830 | TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno = fieldno; | |
1831 | } | |
1832 | ||
1833 | /* Internal routine called by TYPE_VPTR_BASETYPE to return the value of | |
1834 | cplus_stuff.vptr_basetype. */ | |
1835 | ||
1836 | struct type * | |
1837 | internal_type_vptr_basetype (struct type *type) | |
1838 | { | |
f168693b | 1839 | type = check_typedef (type); |
ae6ae975 DE |
1840 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1841 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1842 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF); | |
1843 | return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype; | |
1844 | } | |
1845 | ||
1846 | /* Set the value of cplus_stuff.vptr_basetype. */ | |
1847 | ||
1848 | void | |
1849 | set_type_vptr_basetype (struct type *type, struct type *basetype) | |
1850 | { | |
f168693b | 1851 | type = check_typedef (type); |
ae6ae975 DE |
1852 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1853 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1854 | if (!HAVE_CPLUS_STRUCT (type)) | |
1855 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
1856 | TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype = basetype; | |
1857 | } | |
1858 | ||
81fe8080 DE |
1859 | /* Lookup the vptr basetype/fieldno values for TYPE. |
1860 | If found store vptr_basetype in *BASETYPEP if non-NULL, and return | |
1861 | vptr_fieldno. Also, if found and basetype is from the same objfile, | |
1862 | cache the results. | |
1863 | If not found, return -1 and ignore BASETYPEP. | |
1864 | Callers should be aware that in some cases (for example, | |
c906108c | 1865 | the type or one of its baseclasses is a stub type and we are |
d48cc9dd DJ |
1866 | debugging a .o file, or the compiler uses DWARF-2 and is not GCC), |
1867 | this function will not be able to find the | |
7ba81444 | 1868 | virtual function table pointer, and vptr_fieldno will remain -1 and |
81fe8080 | 1869 | vptr_basetype will remain NULL or incomplete. */ |
c906108c | 1870 | |
81fe8080 DE |
1871 | int |
1872 | get_vptr_fieldno (struct type *type, struct type **basetypep) | |
c906108c | 1873 | { |
f168693b | 1874 | type = check_typedef (type); |
c906108c SS |
1875 | |
1876 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1877 | { | |
1878 | int i; | |
1879 | ||
7ba81444 MS |
1880 | /* We must start at zero in case the first (and only) baseclass |
1881 | is virtual (and hence we cannot share the table pointer). */ | |
c906108c SS |
1882 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1883 | { | |
81fe8080 DE |
1884 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
1885 | int fieldno; | |
1886 | struct type *basetype; | |
1887 | ||
1888 | fieldno = get_vptr_fieldno (baseclass, &basetype); | |
1889 | if (fieldno >= 0) | |
c906108c | 1890 | { |
81fe8080 | 1891 | /* If the type comes from a different objfile we can't cache |
0963b4bd | 1892 | it, it may have a different lifetime. PR 2384 */ |
5ef73790 | 1893 | if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype)) |
81fe8080 | 1894 | { |
ae6ae975 DE |
1895 | set_type_vptr_fieldno (type, fieldno); |
1896 | set_type_vptr_basetype (type, basetype); | |
81fe8080 DE |
1897 | } |
1898 | if (basetypep) | |
1899 | *basetypep = basetype; | |
1900 | return fieldno; | |
c906108c SS |
1901 | } |
1902 | } | |
81fe8080 DE |
1903 | |
1904 | /* Not found. */ | |
1905 | return -1; | |
1906 | } | |
1907 | else | |
1908 | { | |
1909 | if (basetypep) | |
1910 | *basetypep = TYPE_VPTR_BASETYPE (type); | |
1911 | return TYPE_VPTR_FIELDNO (type); | |
c906108c SS |
1912 | } |
1913 | } | |
1914 | ||
44e1a9eb DJ |
1915 | static void |
1916 | stub_noname_complaint (void) | |
1917 | { | |
b98664d3 | 1918 | complaint (_("stub type has NULL name")); |
44e1a9eb DJ |
1919 | } |
1920 | ||
a405673c JB |
1921 | /* Return nonzero if TYPE has a DYN_PROP_BYTE_STRIDE dynamic property |
1922 | attached to it, and that property has a non-constant value. */ | |
1923 | ||
1924 | static int | |
1925 | array_type_has_dynamic_stride (struct type *type) | |
1926 | { | |
1927 | struct dynamic_prop *prop = get_dyn_prop (DYN_PROP_BYTE_STRIDE, type); | |
1928 | ||
1929 | return (prop != NULL && prop->kind != PROP_CONST); | |
1930 | } | |
1931 | ||
d98b7a16 | 1932 | /* Worker for is_dynamic_type. */ |
80180f79 | 1933 | |
d98b7a16 | 1934 | static int |
ee715b5a | 1935 | is_dynamic_type_internal (struct type *type, int top_level) |
80180f79 SA |
1936 | { |
1937 | type = check_typedef (type); | |
1938 | ||
e771e4be PMR |
1939 | /* We only want to recognize references at the outermost level. */ |
1940 | if (top_level && TYPE_CODE (type) == TYPE_CODE_REF) | |
1941 | type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1942 | ||
3cdcd0ce JB |
1943 | /* Types that have a dynamic TYPE_DATA_LOCATION are considered |
1944 | dynamic, even if the type itself is statically defined. | |
1945 | From a user's point of view, this may appear counter-intuitive; | |
1946 | but it makes sense in this context, because the point is to determine | |
1947 | whether any part of the type needs to be resolved before it can | |
1948 | be exploited. */ | |
1949 | if (TYPE_DATA_LOCATION (type) != NULL | |
1950 | && (TYPE_DATA_LOCATION_KIND (type) == PROP_LOCEXPR | |
1951 | || TYPE_DATA_LOCATION_KIND (type) == PROP_LOCLIST)) | |
1952 | return 1; | |
1953 | ||
3f2f83dd KB |
1954 | if (TYPE_ASSOCIATED_PROP (type)) |
1955 | return 1; | |
1956 | ||
1957 | if (TYPE_ALLOCATED_PROP (type)) | |
1958 | return 1; | |
1959 | ||
80180f79 SA |
1960 | switch (TYPE_CODE (type)) |
1961 | { | |
6f8a3220 | 1962 | case TYPE_CODE_RANGE: |
ddb87a81 JB |
1963 | { |
1964 | /* A range type is obviously dynamic if it has at least one | |
1965 | dynamic bound. But also consider the range type to be | |
1966 | dynamic when its subtype is dynamic, even if the bounds | |
1967 | of the range type are static. It allows us to assume that | |
1968 | the subtype of a static range type is also static. */ | |
1969 | return (!has_static_range (TYPE_RANGE_DATA (type)) | |
ee715b5a | 1970 | || is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0)); |
ddb87a81 | 1971 | } |
6f8a3220 | 1972 | |
216a7e6b AB |
1973 | case TYPE_CODE_STRING: |
1974 | /* Strings are very much like an array of characters, and can be | |
1975 | treated as one here. */ | |
80180f79 SA |
1976 | case TYPE_CODE_ARRAY: |
1977 | { | |
80180f79 | 1978 | gdb_assert (TYPE_NFIELDS (type) == 1); |
6f8a3220 | 1979 | |
a405673c | 1980 | /* The array is dynamic if either the bounds are dynamic... */ |
ee715b5a | 1981 | if (is_dynamic_type_internal (TYPE_INDEX_TYPE (type), 0)) |
80180f79 | 1982 | return 1; |
a405673c JB |
1983 | /* ... or the elements it contains have a dynamic contents... */ |
1984 | if (is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0)) | |
1985 | return 1; | |
1986 | /* ... or if it has a dynamic stride... */ | |
1987 | if (array_type_has_dynamic_stride (type)) | |
1988 | return 1; | |
1989 | return 0; | |
80180f79 | 1990 | } |
012370f6 TT |
1991 | |
1992 | case TYPE_CODE_STRUCT: | |
1993 | case TYPE_CODE_UNION: | |
1994 | { | |
1995 | int i; | |
1996 | ||
1997 | for (i = 0; i < TYPE_NFIELDS (type); ++i) | |
1998 | if (!field_is_static (&TYPE_FIELD (type, i)) | |
ee715b5a | 1999 | && is_dynamic_type_internal (TYPE_FIELD_TYPE (type, i), 0)) |
012370f6 TT |
2000 | return 1; |
2001 | } | |
2002 | break; | |
80180f79 | 2003 | } |
92e2a17f TT |
2004 | |
2005 | return 0; | |
80180f79 SA |
2006 | } |
2007 | ||
d98b7a16 TT |
2008 | /* See gdbtypes.h. */ |
2009 | ||
2010 | int | |
2011 | is_dynamic_type (struct type *type) | |
2012 | { | |
ee715b5a | 2013 | return is_dynamic_type_internal (type, 1); |
d98b7a16 TT |
2014 | } |
2015 | ||
df25ebbd | 2016 | static struct type *resolve_dynamic_type_internal |
ee715b5a | 2017 | (struct type *type, struct property_addr_info *addr_stack, int top_level); |
d98b7a16 | 2018 | |
df25ebbd JB |
2019 | /* Given a dynamic range type (dyn_range_type) and a stack of |
2020 | struct property_addr_info elements, return a static version | |
2021 | of that type. */ | |
d190df30 | 2022 | |
80180f79 | 2023 | static struct type * |
df25ebbd JB |
2024 | resolve_dynamic_range (struct type *dyn_range_type, |
2025 | struct property_addr_info *addr_stack) | |
80180f79 SA |
2026 | { |
2027 | CORE_ADDR value; | |
ddb87a81 | 2028 | struct type *static_range_type, *static_target_type; |
80180f79 | 2029 | const struct dynamic_prop *prop; |
5bbd8269 | 2030 | struct dynamic_prop low_bound, high_bound, stride; |
80180f79 | 2031 | |
6f8a3220 | 2032 | gdb_assert (TYPE_CODE (dyn_range_type) == TYPE_CODE_RANGE); |
80180f79 | 2033 | |
6f8a3220 | 2034 | prop = &TYPE_RANGE_DATA (dyn_range_type)->low; |
63e43d3a | 2035 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
80180f79 SA |
2036 | { |
2037 | low_bound.kind = PROP_CONST; | |
2038 | low_bound.data.const_val = value; | |
2039 | } | |
2040 | else | |
2041 | { | |
2042 | low_bound.kind = PROP_UNDEFINED; | |
2043 | low_bound.data.const_val = 0; | |
2044 | } | |
2045 | ||
6f8a3220 | 2046 | prop = &TYPE_RANGE_DATA (dyn_range_type)->high; |
63e43d3a | 2047 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
80180f79 SA |
2048 | { |
2049 | high_bound.kind = PROP_CONST; | |
2050 | high_bound.data.const_val = value; | |
c451ebe5 | 2051 | |
6f8a3220 | 2052 | if (TYPE_RANGE_DATA (dyn_range_type)->flag_upper_bound_is_count) |
c451ebe5 SA |
2053 | high_bound.data.const_val |
2054 | = low_bound.data.const_val + high_bound.data.const_val - 1; | |
80180f79 SA |
2055 | } |
2056 | else | |
2057 | { | |
2058 | high_bound.kind = PROP_UNDEFINED; | |
2059 | high_bound.data.const_val = 0; | |
2060 | } | |
2061 | ||
5bbd8269 AB |
2062 | bool byte_stride_p = TYPE_RANGE_DATA (dyn_range_type)->flag_is_byte_stride; |
2063 | prop = &TYPE_RANGE_DATA (dyn_range_type)->stride; | |
2064 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
2065 | { | |
2066 | stride.kind = PROP_CONST; | |
2067 | stride.data.const_val = value; | |
2068 | ||
2069 | /* If we have a bit stride that is not an exact number of bytes then | |
2070 | I really don't think this is going to work with current GDB, the | |
2071 | array indexing code in GDB seems to be pretty heavily tied to byte | |
2072 | offsets right now. Assuming 8 bits in a byte. */ | |
2073 | struct gdbarch *gdbarch = get_type_arch (dyn_range_type); | |
2074 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
2075 | if (!byte_stride_p && (value % (unit_size * 8)) != 0) | |
2076 | error (_("bit strides that are not a multiple of the byte size " | |
2077 | "are currently not supported")); | |
2078 | } | |
2079 | else | |
2080 | { | |
2081 | stride.kind = PROP_UNDEFINED; | |
2082 | stride.data.const_val = 0; | |
2083 | byte_stride_p = true; | |
2084 | } | |
2085 | ||
ddb87a81 JB |
2086 | static_target_type |
2087 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (dyn_range_type), | |
ee715b5a | 2088 | addr_stack, 0); |
4e962e74 | 2089 | LONGEST bias = TYPE_RANGE_DATA (dyn_range_type)->bias; |
5bbd8269 AB |
2090 | static_range_type = create_range_type_with_stride |
2091 | (copy_type (dyn_range_type), static_target_type, | |
2092 | &low_bound, &high_bound, bias, &stride, byte_stride_p); | |
6f8a3220 JB |
2093 | TYPE_RANGE_DATA (static_range_type)->flag_bound_evaluated = 1; |
2094 | return static_range_type; | |
2095 | } | |
2096 | ||
216a7e6b AB |
2097 | /* Resolves dynamic bound values of an array or string type TYPE to static |
2098 | ones. ADDR_STACK is a stack of struct property_addr_info to be used if | |
2099 | needed during the dynamic resolution. */ | |
6f8a3220 JB |
2100 | |
2101 | static struct type * | |
216a7e6b AB |
2102 | resolve_dynamic_array_or_string (struct type *type, |
2103 | struct property_addr_info *addr_stack) | |
6f8a3220 JB |
2104 | { |
2105 | CORE_ADDR value; | |
2106 | struct type *elt_type; | |
2107 | struct type *range_type; | |
2108 | struct type *ary_dim; | |
3f2f83dd | 2109 | struct dynamic_prop *prop; |
a405673c | 2110 | unsigned int bit_stride = 0; |
6f8a3220 | 2111 | |
216a7e6b AB |
2112 | /* For dynamic type resolution strings can be treated like arrays of |
2113 | characters. */ | |
2114 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_ARRAY | |
2115 | || TYPE_CODE (type) == TYPE_CODE_STRING); | |
6f8a3220 | 2116 | |
3f2f83dd KB |
2117 | type = copy_type (type); |
2118 | ||
6f8a3220 JB |
2119 | elt_type = type; |
2120 | range_type = check_typedef (TYPE_INDEX_TYPE (elt_type)); | |
df25ebbd | 2121 | range_type = resolve_dynamic_range (range_type, addr_stack); |
6f8a3220 | 2122 | |
3f2f83dd KB |
2123 | /* Resolve allocated/associated here before creating a new array type, which |
2124 | will update the length of the array accordingly. */ | |
2125 | prop = TYPE_ALLOCATED_PROP (type); | |
2126 | if (prop != NULL && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
2127 | { | |
2128 | TYPE_DYN_PROP_ADDR (prop) = value; | |
2129 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
2130 | } | |
2131 | prop = TYPE_ASSOCIATED_PROP (type); | |
2132 | if (prop != NULL && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
2133 | { | |
2134 | TYPE_DYN_PROP_ADDR (prop) = value; | |
2135 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
2136 | } | |
2137 | ||
80180f79 SA |
2138 | ary_dim = check_typedef (TYPE_TARGET_TYPE (elt_type)); |
2139 | ||
2140 | if (ary_dim != NULL && TYPE_CODE (ary_dim) == TYPE_CODE_ARRAY) | |
216a7e6b | 2141 | elt_type = resolve_dynamic_array_or_string (ary_dim, addr_stack); |
80180f79 SA |
2142 | else |
2143 | elt_type = TYPE_TARGET_TYPE (type); | |
2144 | ||
a405673c JB |
2145 | prop = get_dyn_prop (DYN_PROP_BYTE_STRIDE, type); |
2146 | if (prop != NULL) | |
2147 | { | |
603490bf | 2148 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
a405673c JB |
2149 | { |
2150 | remove_dyn_prop (DYN_PROP_BYTE_STRIDE, type); | |
2151 | bit_stride = (unsigned int) (value * 8); | |
2152 | } | |
2153 | else | |
2154 | { | |
2155 | /* Could be a bug in our code, but it could also happen | |
2156 | if the DWARF info is not correct. Issue a warning, | |
2157 | and assume no byte/bit stride (leave bit_stride = 0). */ | |
2158 | warning (_("cannot determine array stride for type %s"), | |
2159 | TYPE_NAME (type) ? TYPE_NAME (type) : "<no name>"); | |
2160 | } | |
2161 | } | |
2162 | else | |
2163 | bit_stride = TYPE_FIELD_BITSIZE (type, 0); | |
2164 | ||
2165 | return create_array_type_with_stride (type, elt_type, range_type, NULL, | |
2166 | bit_stride); | |
80180f79 SA |
2167 | } |
2168 | ||
012370f6 | 2169 | /* Resolve dynamic bounds of members of the union TYPE to static |
df25ebbd JB |
2170 | bounds. ADDR_STACK is a stack of struct property_addr_info |
2171 | to be used if needed during the dynamic resolution. */ | |
012370f6 TT |
2172 | |
2173 | static struct type * | |
df25ebbd JB |
2174 | resolve_dynamic_union (struct type *type, |
2175 | struct property_addr_info *addr_stack) | |
012370f6 TT |
2176 | { |
2177 | struct type *resolved_type; | |
2178 | int i; | |
2179 | unsigned int max_len = 0; | |
2180 | ||
2181 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_UNION); | |
2182 | ||
2183 | resolved_type = copy_type (type); | |
2184 | TYPE_FIELDS (resolved_type) | |
224c3ddb SM |
2185 | = (struct field *) TYPE_ALLOC (resolved_type, |
2186 | TYPE_NFIELDS (resolved_type) | |
2187 | * sizeof (struct field)); | |
012370f6 TT |
2188 | memcpy (TYPE_FIELDS (resolved_type), |
2189 | TYPE_FIELDS (type), | |
2190 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
2191 | for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i) | |
2192 | { | |
2193 | struct type *t; | |
2194 | ||
2195 | if (field_is_static (&TYPE_FIELD (type, i))) | |
2196 | continue; | |
2197 | ||
d98b7a16 | 2198 | t = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i), |
ee715b5a | 2199 | addr_stack, 0); |
012370f6 TT |
2200 | TYPE_FIELD_TYPE (resolved_type, i) = t; |
2201 | if (TYPE_LENGTH (t) > max_len) | |
2202 | max_len = TYPE_LENGTH (t); | |
2203 | } | |
2204 | ||
2205 | TYPE_LENGTH (resolved_type) = max_len; | |
2206 | return resolved_type; | |
2207 | } | |
2208 | ||
2209 | /* Resolve dynamic bounds of members of the struct TYPE to static | |
df25ebbd JB |
2210 | bounds. ADDR_STACK is a stack of struct property_addr_info to |
2211 | be used if needed during the dynamic resolution. */ | |
012370f6 TT |
2212 | |
2213 | static struct type * | |
df25ebbd JB |
2214 | resolve_dynamic_struct (struct type *type, |
2215 | struct property_addr_info *addr_stack) | |
012370f6 TT |
2216 | { |
2217 | struct type *resolved_type; | |
2218 | int i; | |
6908c509 | 2219 | unsigned resolved_type_bit_length = 0; |
012370f6 TT |
2220 | |
2221 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT); | |
2222 | gdb_assert (TYPE_NFIELDS (type) > 0); | |
2223 | ||
2224 | resolved_type = copy_type (type); | |
2225 | TYPE_FIELDS (resolved_type) | |
224c3ddb SM |
2226 | = (struct field *) TYPE_ALLOC (resolved_type, |
2227 | TYPE_NFIELDS (resolved_type) | |
2228 | * sizeof (struct field)); | |
012370f6 TT |
2229 | memcpy (TYPE_FIELDS (resolved_type), |
2230 | TYPE_FIELDS (type), | |
2231 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
2232 | for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i) | |
2233 | { | |
6908c509 | 2234 | unsigned new_bit_length; |
df25ebbd | 2235 | struct property_addr_info pinfo; |
012370f6 TT |
2236 | |
2237 | if (field_is_static (&TYPE_FIELD (type, i))) | |
2238 | continue; | |
2239 | ||
6908c509 JB |
2240 | /* As we know this field is not a static field, the field's |
2241 | field_loc_kind should be FIELD_LOC_KIND_BITPOS. Verify | |
2242 | this is the case, but only trigger a simple error rather | |
2243 | than an internal error if that fails. While failing | |
2244 | that verification indicates a bug in our code, the error | |
2245 | is not severe enough to suggest to the user he stops | |
2246 | his debugging session because of it. */ | |
df25ebbd | 2247 | if (TYPE_FIELD_LOC_KIND (type, i) != FIELD_LOC_KIND_BITPOS) |
6908c509 JB |
2248 | error (_("Cannot determine struct field location" |
2249 | " (invalid location kind)")); | |
df25ebbd JB |
2250 | |
2251 | pinfo.type = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
c3345124 | 2252 | pinfo.valaddr = addr_stack->valaddr; |
9920b434 BH |
2253 | pinfo.addr |
2254 | = (addr_stack->addr | |
2255 | + (TYPE_FIELD_BITPOS (resolved_type, i) / TARGET_CHAR_BIT)); | |
df25ebbd JB |
2256 | pinfo.next = addr_stack; |
2257 | ||
2258 | TYPE_FIELD_TYPE (resolved_type, i) | |
2259 | = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i), | |
ee715b5a | 2260 | &pinfo, 0); |
df25ebbd JB |
2261 | gdb_assert (TYPE_FIELD_LOC_KIND (resolved_type, i) |
2262 | == FIELD_LOC_KIND_BITPOS); | |
2263 | ||
6908c509 JB |
2264 | new_bit_length = TYPE_FIELD_BITPOS (resolved_type, i); |
2265 | if (TYPE_FIELD_BITSIZE (resolved_type, i) != 0) | |
2266 | new_bit_length += TYPE_FIELD_BITSIZE (resolved_type, i); | |
2267 | else | |
2268 | new_bit_length += (TYPE_LENGTH (TYPE_FIELD_TYPE (resolved_type, i)) | |
2269 | * TARGET_CHAR_BIT); | |
2270 | ||
2271 | /* Normally, we would use the position and size of the last field | |
2272 | to determine the size of the enclosing structure. But GCC seems | |
2273 | to be encoding the position of some fields incorrectly when | |
2274 | the struct contains a dynamic field that is not placed last. | |
2275 | So we compute the struct size based on the field that has | |
2276 | the highest position + size - probably the best we can do. */ | |
2277 | if (new_bit_length > resolved_type_bit_length) | |
2278 | resolved_type_bit_length = new_bit_length; | |
012370f6 TT |
2279 | } |
2280 | ||
9920b434 BH |
2281 | /* The length of a type won't change for fortran, but it does for C and Ada. |
2282 | For fortran the size of dynamic fields might change over time but not the | |
2283 | type length of the structure. If we adapt it, we run into problems | |
2284 | when calculating the element offset for arrays of structs. */ | |
2285 | if (current_language->la_language != language_fortran) | |
2286 | TYPE_LENGTH (resolved_type) | |
2287 | = (resolved_type_bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
6908c509 | 2288 | |
9e195661 PMR |
2289 | /* The Ada language uses this field as a cache for static fixed types: reset |
2290 | it as RESOLVED_TYPE must have its own static fixed type. */ | |
2291 | TYPE_TARGET_TYPE (resolved_type) = NULL; | |
2292 | ||
012370f6 TT |
2293 | return resolved_type; |
2294 | } | |
2295 | ||
d98b7a16 | 2296 | /* Worker for resolved_dynamic_type. */ |
80180f79 | 2297 | |
d98b7a16 | 2298 | static struct type * |
df25ebbd | 2299 | resolve_dynamic_type_internal (struct type *type, |
ee715b5a PMR |
2300 | struct property_addr_info *addr_stack, |
2301 | int top_level) | |
80180f79 SA |
2302 | { |
2303 | struct type *real_type = check_typedef (type); | |
6f8a3220 | 2304 | struct type *resolved_type = type; |
d9823cbb | 2305 | struct dynamic_prop *prop; |
3cdcd0ce | 2306 | CORE_ADDR value; |
80180f79 | 2307 | |
ee715b5a | 2308 | if (!is_dynamic_type_internal (real_type, top_level)) |
80180f79 SA |
2309 | return type; |
2310 | ||
5537b577 | 2311 | if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
6f8a3220 | 2312 | { |
cac9b138 JK |
2313 | resolved_type = copy_type (type); |
2314 | TYPE_TARGET_TYPE (resolved_type) | |
ee715b5a PMR |
2315 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), addr_stack, |
2316 | top_level); | |
5537b577 JK |
2317 | } |
2318 | else | |
2319 | { | |
2320 | /* Before trying to resolve TYPE, make sure it is not a stub. */ | |
2321 | type = real_type; | |
012370f6 | 2322 | |
5537b577 JK |
2323 | switch (TYPE_CODE (type)) |
2324 | { | |
e771e4be PMR |
2325 | case TYPE_CODE_REF: |
2326 | { | |
2327 | struct property_addr_info pinfo; | |
2328 | ||
2329 | pinfo.type = check_typedef (TYPE_TARGET_TYPE (type)); | |
c3345124 JB |
2330 | pinfo.valaddr = NULL; |
2331 | if (addr_stack->valaddr != NULL) | |
2332 | pinfo.addr = extract_typed_address (addr_stack->valaddr, type); | |
2333 | else | |
2334 | pinfo.addr = read_memory_typed_address (addr_stack->addr, type); | |
e771e4be PMR |
2335 | pinfo.next = addr_stack; |
2336 | ||
2337 | resolved_type = copy_type (type); | |
2338 | TYPE_TARGET_TYPE (resolved_type) | |
2339 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), | |
2340 | &pinfo, top_level); | |
2341 | break; | |
2342 | } | |
2343 | ||
216a7e6b AB |
2344 | case TYPE_CODE_STRING: |
2345 | /* Strings are very much like an array of characters, and can be | |
2346 | treated as one here. */ | |
5537b577 | 2347 | case TYPE_CODE_ARRAY: |
216a7e6b | 2348 | resolved_type = resolve_dynamic_array_or_string (type, addr_stack); |
5537b577 JK |
2349 | break; |
2350 | ||
2351 | case TYPE_CODE_RANGE: | |
df25ebbd | 2352 | resolved_type = resolve_dynamic_range (type, addr_stack); |
5537b577 JK |
2353 | break; |
2354 | ||
2355 | case TYPE_CODE_UNION: | |
df25ebbd | 2356 | resolved_type = resolve_dynamic_union (type, addr_stack); |
5537b577 JK |
2357 | break; |
2358 | ||
2359 | case TYPE_CODE_STRUCT: | |
df25ebbd | 2360 | resolved_type = resolve_dynamic_struct (type, addr_stack); |
5537b577 JK |
2361 | break; |
2362 | } | |
6f8a3220 | 2363 | } |
80180f79 | 2364 | |
3cdcd0ce JB |
2365 | /* Resolve data_location attribute. */ |
2366 | prop = TYPE_DATA_LOCATION (resolved_type); | |
63e43d3a PMR |
2367 | if (prop != NULL |
2368 | && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
3cdcd0ce | 2369 | { |
d9823cbb KB |
2370 | TYPE_DYN_PROP_ADDR (prop) = value; |
2371 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
3cdcd0ce | 2372 | } |
3cdcd0ce | 2373 | |
80180f79 SA |
2374 | return resolved_type; |
2375 | } | |
2376 | ||
d98b7a16 TT |
2377 | /* See gdbtypes.h */ |
2378 | ||
2379 | struct type * | |
c3345124 JB |
2380 | resolve_dynamic_type (struct type *type, const gdb_byte *valaddr, |
2381 | CORE_ADDR addr) | |
d98b7a16 | 2382 | { |
c3345124 JB |
2383 | struct property_addr_info pinfo |
2384 | = {check_typedef (type), valaddr, addr, NULL}; | |
df25ebbd | 2385 | |
ee715b5a | 2386 | return resolve_dynamic_type_internal (type, &pinfo, 1); |
d98b7a16 TT |
2387 | } |
2388 | ||
d9823cbb KB |
2389 | /* See gdbtypes.h */ |
2390 | ||
2391 | struct dynamic_prop * | |
2392 | get_dyn_prop (enum dynamic_prop_node_kind prop_kind, const struct type *type) | |
2393 | { | |
2394 | struct dynamic_prop_list *node = TYPE_DYN_PROP_LIST (type); | |
2395 | ||
2396 | while (node != NULL) | |
2397 | { | |
2398 | if (node->prop_kind == prop_kind) | |
283a9958 | 2399 | return &node->prop; |
d9823cbb KB |
2400 | node = node->next; |
2401 | } | |
2402 | return NULL; | |
2403 | } | |
2404 | ||
2405 | /* See gdbtypes.h */ | |
2406 | ||
2407 | void | |
2408 | add_dyn_prop (enum dynamic_prop_node_kind prop_kind, struct dynamic_prop prop, | |
50a82047 | 2409 | struct type *type) |
d9823cbb KB |
2410 | { |
2411 | struct dynamic_prop_list *temp; | |
2412 | ||
2413 | gdb_assert (TYPE_OBJFILE_OWNED (type)); | |
2414 | ||
50a82047 TT |
2415 | temp = XOBNEW (&TYPE_OBJFILE (type)->objfile_obstack, |
2416 | struct dynamic_prop_list); | |
d9823cbb | 2417 | temp->prop_kind = prop_kind; |
283a9958 | 2418 | temp->prop = prop; |
d9823cbb KB |
2419 | temp->next = TYPE_DYN_PROP_LIST (type); |
2420 | ||
2421 | TYPE_DYN_PROP_LIST (type) = temp; | |
2422 | } | |
2423 | ||
9920b434 BH |
2424 | /* Remove dynamic property from TYPE in case it exists. */ |
2425 | ||
2426 | void | |
2427 | remove_dyn_prop (enum dynamic_prop_node_kind prop_kind, | |
2428 | struct type *type) | |
2429 | { | |
2430 | struct dynamic_prop_list *prev_node, *curr_node; | |
2431 | ||
2432 | curr_node = TYPE_DYN_PROP_LIST (type); | |
2433 | prev_node = NULL; | |
2434 | ||
2435 | while (NULL != curr_node) | |
2436 | { | |
2437 | if (curr_node->prop_kind == prop_kind) | |
2438 | { | |
2439 | /* Update the linked list but don't free anything. | |
2440 | The property was allocated on objstack and it is not known | |
2441 | if we are on top of it. Nevertheless, everything is released | |
2442 | when the complete objstack is freed. */ | |
2443 | if (NULL == prev_node) | |
2444 | TYPE_DYN_PROP_LIST (type) = curr_node->next; | |
2445 | else | |
2446 | prev_node->next = curr_node->next; | |
2447 | ||
2448 | return; | |
2449 | } | |
2450 | ||
2451 | prev_node = curr_node; | |
2452 | curr_node = curr_node->next; | |
2453 | } | |
2454 | } | |
d9823cbb | 2455 | |
92163a10 JK |
2456 | /* Find the real type of TYPE. This function returns the real type, |
2457 | after removing all layers of typedefs, and completing opaque or stub | |
2458 | types. Completion changes the TYPE argument, but stripping of | |
2459 | typedefs does not. | |
2460 | ||
2461 | Instance flags (e.g. const/volatile) are preserved as typedefs are | |
2462 | stripped. If necessary a new qualified form of the underlying type | |
2463 | is created. | |
2464 | ||
2465 | NOTE: This will return a typedef if TYPE_TARGET_TYPE for the typedef has | |
2466 | not been computed and we're either in the middle of reading symbols, or | |
2467 | there was no name for the typedef in the debug info. | |
2468 | ||
9bc118a5 DE |
2469 | NOTE: Lookup of opaque types can throw errors for invalid symbol files. |
2470 | QUITs in the symbol reading code can also throw. | |
2471 | Thus this function can throw an exception. | |
2472 | ||
92163a10 JK |
2473 | If TYPE is a TYPE_CODE_TYPEDEF, its length is updated to the length of |
2474 | the target type. | |
c906108c SS |
2475 | |
2476 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
0963b4bd | 2477 | we can find a full definition in some other file. If so, copy this |
7ba81444 MS |
2478 | definition, so we can use it in future. There used to be a comment |
2479 | (but not any code) that if we don't find a full definition, we'd | |
2480 | set a flag so we don't spend time in the future checking the same | |
2481 | type. That would be a mistake, though--we might load in more | |
92163a10 | 2482 | symbols which contain a full definition for the type. */ |
c906108c SS |
2483 | |
2484 | struct type * | |
a02fd225 | 2485 | check_typedef (struct type *type) |
c906108c SS |
2486 | { |
2487 | struct type *orig_type = type; | |
92163a10 JK |
2488 | /* While we're removing typedefs, we don't want to lose qualifiers. |
2489 | E.g., const/volatile. */ | |
2490 | int instance_flags = TYPE_INSTANCE_FLAGS (type); | |
a02fd225 | 2491 | |
423c0af8 MS |
2492 | gdb_assert (type); |
2493 | ||
c906108c SS |
2494 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
2495 | { | |
2496 | if (!TYPE_TARGET_TYPE (type)) | |
2497 | { | |
0d5cff50 | 2498 | const char *name; |
c906108c SS |
2499 | struct symbol *sym; |
2500 | ||
2501 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 2502 | reading a symtab. Infinite recursion is one danger. */ |
c906108c | 2503 | if (currently_reading_symtab) |
92163a10 | 2504 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2505 | |
a737d952 | 2506 | name = TYPE_NAME (type); |
e86ca25f TT |
2507 | /* FIXME: shouldn't we look in STRUCT_DOMAIN and/or |
2508 | VAR_DOMAIN as appropriate? */ | |
c906108c SS |
2509 | if (name == NULL) |
2510 | { | |
23136709 | 2511 | stub_noname_complaint (); |
92163a10 | 2512 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2513 | } |
d12307c1 | 2514 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
2515 | if (sym) |
2516 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
7ba81444 | 2517 | else /* TYPE_CODE_UNDEF */ |
e9bb382b | 2518 | TYPE_TARGET_TYPE (type) = alloc_type_arch (get_type_arch (type)); |
c906108c SS |
2519 | } |
2520 | type = TYPE_TARGET_TYPE (type); | |
c906108c | 2521 | |
92163a10 JK |
2522 | /* Preserve the instance flags as we traverse down the typedef chain. |
2523 | ||
2524 | Handling address spaces/classes is nasty, what do we do if there's a | |
2525 | conflict? | |
2526 | E.g., what if an outer typedef marks the type as class_1 and an inner | |
2527 | typedef marks the type as class_2? | |
2528 | This is the wrong place to do such error checking. We leave it to | |
2529 | the code that created the typedef in the first place to flag the | |
2530 | error. We just pick the outer address space (akin to letting the | |
2531 | outer cast in a chain of casting win), instead of assuming | |
2532 | "it can't happen". */ | |
2533 | { | |
2534 | const int ALL_SPACES = (TYPE_INSTANCE_FLAG_CODE_SPACE | |
2535 | | TYPE_INSTANCE_FLAG_DATA_SPACE); | |
2536 | const int ALL_CLASSES = TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL; | |
2537 | int new_instance_flags = TYPE_INSTANCE_FLAGS (type); | |
2538 | ||
2539 | /* Treat code vs data spaces and address classes separately. */ | |
2540 | if ((instance_flags & ALL_SPACES) != 0) | |
2541 | new_instance_flags &= ~ALL_SPACES; | |
2542 | if ((instance_flags & ALL_CLASSES) != 0) | |
2543 | new_instance_flags &= ~ALL_CLASSES; | |
2544 | ||
2545 | instance_flags |= new_instance_flags; | |
2546 | } | |
2547 | } | |
a02fd225 | 2548 | |
7ba81444 MS |
2549 | /* If this is a struct/class/union with no fields, then check |
2550 | whether a full definition exists somewhere else. This is for | |
2551 | systems where a type definition with no fields is issued for such | |
2552 | types, instead of identifying them as stub types in the first | |
2553 | place. */ | |
c5aa993b | 2554 | |
7ba81444 MS |
2555 | if (TYPE_IS_OPAQUE (type) |
2556 | && opaque_type_resolution | |
2557 | && !currently_reading_symtab) | |
c906108c | 2558 | { |
a737d952 | 2559 | const char *name = TYPE_NAME (type); |
c5aa993b | 2560 | struct type *newtype; |
d8734c88 | 2561 | |
c906108c SS |
2562 | if (name == NULL) |
2563 | { | |
23136709 | 2564 | stub_noname_complaint (); |
92163a10 | 2565 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
2566 | } |
2567 | newtype = lookup_transparent_type (name); | |
ad766c0a | 2568 | |
c906108c | 2569 | if (newtype) |
ad766c0a | 2570 | { |
7ba81444 MS |
2571 | /* If the resolved type and the stub are in the same |
2572 | objfile, then replace the stub type with the real deal. | |
2573 | But if they're in separate objfiles, leave the stub | |
2574 | alone; we'll just look up the transparent type every time | |
2575 | we call check_typedef. We can't create pointers between | |
2576 | types allocated to different objfiles, since they may | |
2577 | have different lifetimes. Trying to copy NEWTYPE over to | |
2578 | TYPE's objfile is pointless, too, since you'll have to | |
2579 | move over any other types NEWTYPE refers to, which could | |
2580 | be an unbounded amount of stuff. */ | |
ad766c0a | 2581 | if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
92163a10 JK |
2582 | type = make_qualified_type (newtype, |
2583 | TYPE_INSTANCE_FLAGS (type), | |
2584 | type); | |
ad766c0a JB |
2585 | else |
2586 | type = newtype; | |
2587 | } | |
c906108c | 2588 | } |
7ba81444 MS |
2589 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
2590 | types. */ | |
74a9bb82 | 2591 | else if (TYPE_STUB (type) && !currently_reading_symtab) |
c906108c | 2592 | { |
a737d952 | 2593 | const char *name = TYPE_NAME (type); |
e86ca25f TT |
2594 | /* FIXME: shouldn't we look in STRUCT_DOMAIN and/or VAR_DOMAIN |
2595 | as appropriate? */ | |
c906108c | 2596 | struct symbol *sym; |
d8734c88 | 2597 | |
c906108c SS |
2598 | if (name == NULL) |
2599 | { | |
23136709 | 2600 | stub_noname_complaint (); |
92163a10 | 2601 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2602 | } |
d12307c1 | 2603 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0).symbol; |
c906108c | 2604 | if (sym) |
c26f2453 JB |
2605 | { |
2606 | /* Same as above for opaque types, we can replace the stub | |
92163a10 | 2607 | with the complete type only if they are in the same |
c26f2453 JB |
2608 | objfile. */ |
2609 | if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type)) | |
92163a10 JK |
2610 | type = make_qualified_type (SYMBOL_TYPE (sym), |
2611 | TYPE_INSTANCE_FLAGS (type), | |
2612 | type); | |
c26f2453 JB |
2613 | else |
2614 | type = SYMBOL_TYPE (sym); | |
2615 | } | |
c906108c SS |
2616 | } |
2617 | ||
74a9bb82 | 2618 | if (TYPE_TARGET_STUB (type)) |
c906108c | 2619 | { |
c906108c SS |
2620 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); |
2621 | ||
74a9bb82 | 2622 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
c5aa993b | 2623 | { |
73e2eb35 | 2624 | /* Nothing we can do. */ |
c5aa993b | 2625 | } |
c906108c SS |
2626 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
2627 | { | |
2628 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
876cecd0 | 2629 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
2630 | } |
2631 | } | |
92163a10 JK |
2632 | |
2633 | type = make_qualified_type (type, instance_flags, NULL); | |
2634 | ||
7ba81444 | 2635 | /* Cache TYPE_LENGTH for future use. */ |
c906108c | 2636 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
92163a10 | 2637 | |
c906108c SS |
2638 | return type; |
2639 | } | |
2640 | ||
7ba81444 | 2641 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
48319d1f | 2642 | occurs, silently return a void type. */ |
c91ecb25 | 2643 | |
b9362cc7 | 2644 | static struct type * |
48319d1f | 2645 | safe_parse_type (struct gdbarch *gdbarch, char *p, int length) |
c91ecb25 ND |
2646 | { |
2647 | struct ui_file *saved_gdb_stderr; | |
34365054 | 2648 | struct type *type = NULL; /* Initialize to keep gcc happy. */ |
c91ecb25 | 2649 | |
7ba81444 | 2650 | /* Suppress error messages. */ |
c91ecb25 | 2651 | saved_gdb_stderr = gdb_stderr; |
d7e74731 | 2652 | gdb_stderr = &null_stream; |
c91ecb25 | 2653 | |
7ba81444 | 2654 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
a70b8144 | 2655 | try |
8e7b59a5 KS |
2656 | { |
2657 | type = parse_and_eval_type (p, length); | |
2658 | } | |
230d2906 | 2659 | catch (const gdb_exception_error &except) |
492d29ea PA |
2660 | { |
2661 | type = builtin_type (gdbarch)->builtin_void; | |
2662 | } | |
c91ecb25 | 2663 | |
7ba81444 | 2664 | /* Stop suppressing error messages. */ |
c91ecb25 ND |
2665 | gdb_stderr = saved_gdb_stderr; |
2666 | ||
2667 | return type; | |
2668 | } | |
2669 | ||
c906108c SS |
2670 | /* Ugly hack to convert method stubs into method types. |
2671 | ||
7ba81444 MS |
2672 | He ain't kiddin'. This demangles the name of the method into a |
2673 | string including argument types, parses out each argument type, | |
2674 | generates a string casting a zero to that type, evaluates the | |
2675 | string, and stuffs the resulting type into an argtype vector!!! | |
2676 | Then it knows the type of the whole function (including argument | |
2677 | types for overloading), which info used to be in the stab's but was | |
2678 | removed to hack back the space required for them. */ | |
c906108c | 2679 | |
de17c821 | 2680 | static void |
fba45db2 | 2681 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c | 2682 | { |
50810684 | 2683 | struct gdbarch *gdbarch = get_type_arch (type); |
c906108c SS |
2684 | struct fn_field *f; |
2685 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
8de20a37 TT |
2686 | char *demangled_name = gdb_demangle (mangled_name, |
2687 | DMGL_PARAMS | DMGL_ANSI); | |
c906108c SS |
2688 | char *argtypetext, *p; |
2689 | int depth = 0, argcount = 1; | |
ad2f7632 | 2690 | struct field *argtypes; |
c906108c SS |
2691 | struct type *mtype; |
2692 | ||
2693 | /* Make sure we got back a function string that we can use. */ | |
2694 | if (demangled_name) | |
2695 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
2696 | else |
2697 | p = NULL; | |
c906108c SS |
2698 | |
2699 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
2700 | error (_("Internal: Cannot demangle mangled name `%s'."), |
2701 | mangled_name); | |
c906108c SS |
2702 | |
2703 | /* Now, read in the parameters that define this type. */ | |
2704 | p += 1; | |
2705 | argtypetext = p; | |
2706 | while (*p) | |
2707 | { | |
070ad9f0 | 2708 | if (*p == '(' || *p == '<') |
c906108c SS |
2709 | { |
2710 | depth += 1; | |
2711 | } | |
070ad9f0 | 2712 | else if (*p == ')' || *p == '>') |
c906108c SS |
2713 | { |
2714 | depth -= 1; | |
2715 | } | |
2716 | else if (*p == ',' && depth == 0) | |
2717 | { | |
2718 | argcount += 1; | |
2719 | } | |
2720 | ||
2721 | p += 1; | |
2722 | } | |
2723 | ||
ad2f7632 | 2724 | /* If we read one argument and it was ``void'', don't count it. */ |
61012eef | 2725 | if (startswith (argtypetext, "(void)")) |
ad2f7632 | 2726 | argcount -= 1; |
c906108c | 2727 | |
ad2f7632 DJ |
2728 | /* We need one extra slot, for the THIS pointer. */ |
2729 | ||
2730 | argtypes = (struct field *) | |
2731 | TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); | |
c906108c | 2732 | p = argtypetext; |
4a1970e4 DJ |
2733 | |
2734 | /* Add THIS pointer for non-static methods. */ | |
2735 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
2736 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
2737 | argcount = 0; | |
2738 | else | |
2739 | { | |
ad2f7632 | 2740 | argtypes[0].type = lookup_pointer_type (type); |
4a1970e4 DJ |
2741 | argcount = 1; |
2742 | } | |
c906108c | 2743 | |
0963b4bd | 2744 | if (*p != ')') /* () means no args, skip while. */ |
c906108c SS |
2745 | { |
2746 | depth = 0; | |
2747 | while (*p) | |
2748 | { | |
2749 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
2750 | { | |
ad2f7632 DJ |
2751 | /* Avoid parsing of ellipsis, they will be handled below. |
2752 | Also avoid ``void'' as above. */ | |
2753 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 | |
2754 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 2755 | { |
ad2f7632 | 2756 | argtypes[argcount].type = |
48319d1f | 2757 | safe_parse_type (gdbarch, argtypetext, p - argtypetext); |
c906108c SS |
2758 | argcount += 1; |
2759 | } | |
2760 | argtypetext = p + 1; | |
2761 | } | |
2762 | ||
070ad9f0 | 2763 | if (*p == '(' || *p == '<') |
c906108c SS |
2764 | { |
2765 | depth += 1; | |
2766 | } | |
070ad9f0 | 2767 | else if (*p == ')' || *p == '>') |
c906108c SS |
2768 | { |
2769 | depth -= 1; | |
2770 | } | |
2771 | ||
2772 | p += 1; | |
2773 | } | |
2774 | } | |
2775 | ||
c906108c SS |
2776 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
2777 | ||
2778 | /* Now update the old "stub" type into a real type. */ | |
2779 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
09e2d7c7 DE |
2780 | /* MTYPE may currently be a function (TYPE_CODE_FUNC). |
2781 | We want a method (TYPE_CODE_METHOD). */ | |
2782 | smash_to_method_type (mtype, type, TYPE_TARGET_TYPE (mtype), | |
2783 | argtypes, argcount, p[-2] == '.'); | |
876cecd0 | 2784 | TYPE_STUB (mtype) = 0; |
c906108c | 2785 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
ad2f7632 DJ |
2786 | |
2787 | xfree (demangled_name); | |
c906108c SS |
2788 | } |
2789 | ||
7ba81444 MS |
2790 | /* This is the external interface to check_stub_method, above. This |
2791 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
2792 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
2793 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
2794 | correct. | |
de17c821 DJ |
2795 | |
2796 | This function unfortunately can not die until stabs do. */ | |
2797 | ||
2798 | void | |
2799 | check_stub_method_group (struct type *type, int method_id) | |
2800 | { | |
2801 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
2802 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
de17c821 | 2803 | |
041be526 SM |
2804 | for (int j = 0; j < len; j++) |
2805 | { | |
2806 | if (TYPE_FN_FIELD_STUB (f, j)) | |
de17c821 | 2807 | check_stub_method (type, method_id, j); |
de17c821 DJ |
2808 | } |
2809 | } | |
2810 | ||
405feb71 | 2811 | /* Ensure it is in .rodata (if available) by working around GCC PR 44690. */ |
9655fd1a | 2812 | const struct cplus_struct_type cplus_struct_default = { }; |
c906108c SS |
2813 | |
2814 | void | |
fba45db2 | 2815 | allocate_cplus_struct_type (struct type *type) |
c906108c | 2816 | { |
b4ba55a1 JB |
2817 | if (HAVE_CPLUS_STRUCT (type)) |
2818 | /* Structure was already allocated. Nothing more to do. */ | |
2819 | return; | |
2820 | ||
2821 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF; | |
2822 | TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
2823 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
2824 | *(TYPE_RAW_CPLUS_SPECIFIC (type)) = cplus_struct_default; | |
ae6ae975 | 2825 | set_type_vptr_fieldno (type, -1); |
c906108c SS |
2826 | } |
2827 | ||
b4ba55a1 JB |
2828 | const struct gnat_aux_type gnat_aux_default = |
2829 | { NULL }; | |
2830 | ||
2831 | /* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF, | |
2832 | and allocate the associated gnat-specific data. The gnat-specific | |
2833 | data is also initialized to gnat_aux_default. */ | |
5212577a | 2834 | |
b4ba55a1 JB |
2835 | void |
2836 | allocate_gnat_aux_type (struct type *type) | |
2837 | { | |
2838 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF; | |
2839 | TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) | |
2840 | TYPE_ALLOC (type, sizeof (struct gnat_aux_type)); | |
2841 | *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default; | |
2842 | } | |
2843 | ||
ae438bc5 UW |
2844 | /* Helper function to initialize a newly allocated type. Set type code |
2845 | to CODE and initialize the type-specific fields accordingly. */ | |
2846 | ||
2847 | static void | |
2848 | set_type_code (struct type *type, enum type_code code) | |
2849 | { | |
2850 | TYPE_CODE (type) = code; | |
2851 | ||
2852 | switch (code) | |
2853 | { | |
2854 | case TYPE_CODE_STRUCT: | |
2855 | case TYPE_CODE_UNION: | |
2856 | case TYPE_CODE_NAMESPACE: | |
2857 | INIT_CPLUS_SPECIFIC (type); | |
2858 | break; | |
2859 | case TYPE_CODE_FLT: | |
2860 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT; | |
2861 | break; | |
2862 | case TYPE_CODE_FUNC: | |
2863 | INIT_FUNC_SPECIFIC (type); | |
2864 | break; | |
2865 | } | |
2866 | } | |
2867 | ||
19f392bc UW |
2868 | /* Helper function to verify floating-point format and size. |
2869 | BIT is the type size in bits; if BIT equals -1, the size is | |
2870 | determined by the floatformat. Returns size to be used. */ | |
2871 | ||
2872 | static int | |
0db7851f | 2873 | verify_floatformat (int bit, const struct floatformat *floatformat) |
19f392bc | 2874 | { |
0db7851f | 2875 | gdb_assert (floatformat != NULL); |
9b790ce7 | 2876 | |
19f392bc | 2877 | if (bit == -1) |
0db7851f | 2878 | bit = floatformat->totalsize; |
19f392bc | 2879 | |
0db7851f UW |
2880 | gdb_assert (bit >= 0); |
2881 | gdb_assert (bit >= floatformat->totalsize); | |
19f392bc UW |
2882 | |
2883 | return bit; | |
2884 | } | |
2885 | ||
0db7851f UW |
2886 | /* Return the floating-point format for a floating-point variable of |
2887 | type TYPE. */ | |
2888 | ||
2889 | const struct floatformat * | |
2890 | floatformat_from_type (const struct type *type) | |
2891 | { | |
2892 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLT); | |
2893 | gdb_assert (TYPE_FLOATFORMAT (type)); | |
2894 | return TYPE_FLOATFORMAT (type); | |
2895 | } | |
2896 | ||
c906108c SS |
2897 | /* Helper function to initialize the standard scalar types. |
2898 | ||
86f62fd7 TT |
2899 | If NAME is non-NULL, then it is used to initialize the type name. |
2900 | Note that NAME is not copied; it is required to have a lifetime at | |
2901 | least as long as OBJFILE. */ | |
c906108c SS |
2902 | |
2903 | struct type * | |
77b7c781 | 2904 | init_type (struct objfile *objfile, enum type_code code, int bit, |
19f392bc | 2905 | const char *name) |
c906108c | 2906 | { |
52f0bd74 | 2907 | struct type *type; |
c906108c SS |
2908 | |
2909 | type = alloc_type (objfile); | |
ae438bc5 | 2910 | set_type_code (type, code); |
77b7c781 UW |
2911 | gdb_assert ((bit % TARGET_CHAR_BIT) == 0); |
2912 | TYPE_LENGTH (type) = bit / TARGET_CHAR_BIT; | |
86f62fd7 | 2913 | TYPE_NAME (type) = name; |
c906108c | 2914 | |
c16abbde | 2915 | return type; |
c906108c | 2916 | } |
19f392bc | 2917 | |
46a4882b PA |
2918 | /* Allocate a TYPE_CODE_ERROR type structure associated with OBJFILE, |
2919 | to use with variables that have no debug info. NAME is the type | |
2920 | name. */ | |
2921 | ||
2922 | static struct type * | |
2923 | init_nodebug_var_type (struct objfile *objfile, const char *name) | |
2924 | { | |
2925 | return init_type (objfile, TYPE_CODE_ERROR, 0, name); | |
2926 | } | |
2927 | ||
19f392bc UW |
2928 | /* Allocate a TYPE_CODE_INT type structure associated with OBJFILE. |
2929 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
2930 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
2931 | ||
2932 | struct type * | |
2933 | init_integer_type (struct objfile *objfile, | |
2934 | int bit, int unsigned_p, const char *name) | |
2935 | { | |
2936 | struct type *t; | |
2937 | ||
77b7c781 | 2938 | t = init_type (objfile, TYPE_CODE_INT, bit, name); |
19f392bc UW |
2939 | if (unsigned_p) |
2940 | TYPE_UNSIGNED (t) = 1; | |
2941 | ||
2942 | return t; | |
2943 | } | |
2944 | ||
2945 | /* Allocate a TYPE_CODE_CHAR type structure associated with OBJFILE. | |
2946 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
2947 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
2948 | ||
2949 | struct type * | |
2950 | init_character_type (struct objfile *objfile, | |
2951 | int bit, int unsigned_p, const char *name) | |
2952 | { | |
2953 | struct type *t; | |
2954 | ||
77b7c781 | 2955 | t = init_type (objfile, TYPE_CODE_CHAR, bit, name); |
19f392bc UW |
2956 | if (unsigned_p) |
2957 | TYPE_UNSIGNED (t) = 1; | |
2958 | ||
2959 | return t; | |
2960 | } | |
2961 | ||
2962 | /* Allocate a TYPE_CODE_BOOL type structure associated with OBJFILE. | |
2963 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
2964 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
2965 | ||
2966 | struct type * | |
2967 | init_boolean_type (struct objfile *objfile, | |
2968 | int bit, int unsigned_p, const char *name) | |
2969 | { | |
2970 | struct type *t; | |
2971 | ||
77b7c781 | 2972 | t = init_type (objfile, TYPE_CODE_BOOL, bit, name); |
19f392bc UW |
2973 | if (unsigned_p) |
2974 | TYPE_UNSIGNED (t) = 1; | |
2975 | ||
2976 | return t; | |
2977 | } | |
2978 | ||
2979 | /* Allocate a TYPE_CODE_FLT type structure associated with OBJFILE. | |
2980 | BIT is the type size in bits; if BIT equals -1, the size is | |
2981 | determined by the floatformat. NAME is the type name. Set the | |
103a685e TT |
2982 | TYPE_FLOATFORMAT from FLOATFORMATS. BYTE_ORDER is the byte order |
2983 | to use. If it is BFD_ENDIAN_UNKNOWN (the default), then the byte | |
2984 | order of the objfile's architecture is used. */ | |
19f392bc UW |
2985 | |
2986 | struct type * | |
2987 | init_float_type (struct objfile *objfile, | |
2988 | int bit, const char *name, | |
103a685e TT |
2989 | const struct floatformat **floatformats, |
2990 | enum bfd_endian byte_order) | |
19f392bc | 2991 | { |
103a685e TT |
2992 | if (byte_order == BFD_ENDIAN_UNKNOWN) |
2993 | { | |
2994 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
2995 | byte_order = gdbarch_byte_order (gdbarch); | |
2996 | } | |
2997 | const struct floatformat *fmt = floatformats[byte_order]; | |
19f392bc UW |
2998 | struct type *t; |
2999 | ||
0db7851f | 3000 | bit = verify_floatformat (bit, fmt); |
77b7c781 | 3001 | t = init_type (objfile, TYPE_CODE_FLT, bit, name); |
0db7851f | 3002 | TYPE_FLOATFORMAT (t) = fmt; |
19f392bc UW |
3003 | |
3004 | return t; | |
3005 | } | |
3006 | ||
3007 | /* Allocate a TYPE_CODE_DECFLOAT type structure associated with OBJFILE. | |
3008 | BIT is the type size in bits. NAME is the type name. */ | |
3009 | ||
3010 | struct type * | |
3011 | init_decfloat_type (struct objfile *objfile, int bit, const char *name) | |
3012 | { | |
3013 | struct type *t; | |
3014 | ||
77b7c781 | 3015 | t = init_type (objfile, TYPE_CODE_DECFLOAT, bit, name); |
19f392bc UW |
3016 | return t; |
3017 | } | |
3018 | ||
3019 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with OBJFILE. | |
3020 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
3021 | ||
3022 | struct type * | |
3023 | init_complex_type (struct objfile *objfile, | |
3024 | const char *name, struct type *target_type) | |
3025 | { | |
3026 | struct type *t; | |
3027 | ||
3028 | t = init_type (objfile, TYPE_CODE_COMPLEX, | |
77b7c781 | 3029 | 2 * TYPE_LENGTH (target_type) * TARGET_CHAR_BIT, name); |
19f392bc UW |
3030 | TYPE_TARGET_TYPE (t) = target_type; |
3031 | return t; | |
3032 | } | |
3033 | ||
3034 | /* Allocate a TYPE_CODE_PTR type structure associated with OBJFILE. | |
3035 | BIT is the pointer type size in bits. NAME is the type name. | |
3036 | TARGET_TYPE is the pointer target type. Always sets the pointer type's | |
3037 | TYPE_UNSIGNED flag. */ | |
3038 | ||
3039 | struct type * | |
3040 | init_pointer_type (struct objfile *objfile, | |
3041 | int bit, const char *name, struct type *target_type) | |
3042 | { | |
3043 | struct type *t; | |
3044 | ||
77b7c781 | 3045 | t = init_type (objfile, TYPE_CODE_PTR, bit, name); |
19f392bc UW |
3046 | TYPE_TARGET_TYPE (t) = target_type; |
3047 | TYPE_UNSIGNED (t) = 1; | |
3048 | return t; | |
3049 | } | |
3050 | ||
2b4424c3 TT |
3051 | /* See gdbtypes.h. */ |
3052 | ||
3053 | unsigned | |
3054 | type_raw_align (struct type *type) | |
3055 | { | |
3056 | if (type->align_log2 != 0) | |
3057 | return 1 << (type->align_log2 - 1); | |
3058 | return 0; | |
3059 | } | |
3060 | ||
3061 | /* See gdbtypes.h. */ | |
3062 | ||
3063 | unsigned | |
3064 | type_align (struct type *type) | |
3065 | { | |
5561fc30 | 3066 | /* Check alignment provided in the debug information. */ |
2b4424c3 TT |
3067 | unsigned raw_align = type_raw_align (type); |
3068 | if (raw_align != 0) | |
3069 | return raw_align; | |
3070 | ||
5561fc30 AB |
3071 | /* Allow the architecture to provide an alignment. */ |
3072 | struct gdbarch *arch = get_type_arch (type); | |
3073 | ULONGEST align = gdbarch_type_align (arch, type); | |
3074 | if (align != 0) | |
3075 | return align; | |
3076 | ||
2b4424c3 TT |
3077 | switch (TYPE_CODE (type)) |
3078 | { | |
3079 | case TYPE_CODE_PTR: | |
3080 | case TYPE_CODE_FUNC: | |
3081 | case TYPE_CODE_FLAGS: | |
3082 | case TYPE_CODE_INT: | |
75ba10dc | 3083 | case TYPE_CODE_RANGE: |
2b4424c3 TT |
3084 | case TYPE_CODE_FLT: |
3085 | case TYPE_CODE_ENUM: | |
3086 | case TYPE_CODE_REF: | |
3087 | case TYPE_CODE_RVALUE_REF: | |
3088 | case TYPE_CODE_CHAR: | |
3089 | case TYPE_CODE_BOOL: | |
3090 | case TYPE_CODE_DECFLOAT: | |
70cd633e AB |
3091 | case TYPE_CODE_METHODPTR: |
3092 | case TYPE_CODE_MEMBERPTR: | |
5561fc30 | 3093 | align = type_length_units (check_typedef (type)); |
2b4424c3 TT |
3094 | break; |
3095 | ||
3096 | case TYPE_CODE_ARRAY: | |
3097 | case TYPE_CODE_COMPLEX: | |
3098 | case TYPE_CODE_TYPEDEF: | |
3099 | align = type_align (TYPE_TARGET_TYPE (type)); | |
3100 | break; | |
3101 | ||
3102 | case TYPE_CODE_STRUCT: | |
3103 | case TYPE_CODE_UNION: | |
3104 | { | |
41077b66 | 3105 | int number_of_non_static_fields = 0; |
2b4424c3 TT |
3106 | for (unsigned i = 0; i < TYPE_NFIELDS (type); ++i) |
3107 | { | |
bf9a735e | 3108 | if (!field_is_static (&TYPE_FIELD (type, i))) |
2b4424c3 | 3109 | { |
41077b66 | 3110 | number_of_non_static_fields++; |
bf9a735e AB |
3111 | ULONGEST f_align = type_align (TYPE_FIELD_TYPE (type, i)); |
3112 | if (f_align == 0) | |
3113 | { | |
3114 | /* Don't pretend we know something we don't. */ | |
3115 | align = 0; | |
3116 | break; | |
3117 | } | |
3118 | if (f_align > align) | |
3119 | align = f_align; | |
2b4424c3 | 3120 | } |
2b4424c3 | 3121 | } |
41077b66 AB |
3122 | /* A struct with no fields, or with only static fields has an |
3123 | alignment of 1. */ | |
3124 | if (number_of_non_static_fields == 0) | |
3125 | align = 1; | |
2b4424c3 TT |
3126 | } |
3127 | break; | |
3128 | ||
3129 | case TYPE_CODE_SET: | |
2b4424c3 TT |
3130 | case TYPE_CODE_STRING: |
3131 | /* Not sure what to do here, and these can't appear in C or C++ | |
3132 | anyway. */ | |
3133 | break; | |
3134 | ||
2b4424c3 TT |
3135 | case TYPE_CODE_VOID: |
3136 | align = 1; | |
3137 | break; | |
3138 | ||
3139 | case TYPE_CODE_ERROR: | |
3140 | case TYPE_CODE_METHOD: | |
3141 | default: | |
3142 | break; | |
3143 | } | |
3144 | ||
3145 | if ((align & (align - 1)) != 0) | |
3146 | { | |
3147 | /* Not a power of 2, so pass. */ | |
3148 | align = 0; | |
3149 | } | |
3150 | ||
3151 | return align; | |
3152 | } | |
3153 | ||
3154 | /* See gdbtypes.h. */ | |
3155 | ||
3156 | bool | |
3157 | set_type_align (struct type *type, ULONGEST align) | |
3158 | { | |
3159 | /* Must be a power of 2. Zero is ok. */ | |
3160 | gdb_assert ((align & (align - 1)) == 0); | |
3161 | ||
3162 | unsigned result = 0; | |
3163 | while (align != 0) | |
3164 | { | |
3165 | ++result; | |
3166 | align >>= 1; | |
3167 | } | |
3168 | ||
3169 | if (result >= (1 << TYPE_ALIGN_BITS)) | |
3170 | return false; | |
3171 | ||
3172 | type->align_log2 = result; | |
3173 | return true; | |
3174 | } | |
3175 | ||
5212577a DE |
3176 | \f |
3177 | /* Queries on types. */ | |
c906108c | 3178 | |
c906108c | 3179 | int |
fba45db2 | 3180 | can_dereference (struct type *t) |
c906108c | 3181 | { |
7ba81444 MS |
3182 | /* FIXME: Should we return true for references as well as |
3183 | pointers? */ | |
f168693b | 3184 | t = check_typedef (t); |
c906108c SS |
3185 | return |
3186 | (t != NULL | |
3187 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
3188 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
3189 | } | |
3190 | ||
adf40b2e | 3191 | int |
fba45db2 | 3192 | is_integral_type (struct type *t) |
adf40b2e | 3193 | { |
f168693b | 3194 | t = check_typedef (t); |
adf40b2e JM |
3195 | return |
3196 | ((t != NULL) | |
d4f3574e SS |
3197 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
3198 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
4f2aea11 | 3199 | || (TYPE_CODE (t) == TYPE_CODE_FLAGS) |
d4f3574e SS |
3200 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) |
3201 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
3202 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
3203 | } |
3204 | ||
70100014 UW |
3205 | int |
3206 | is_floating_type (struct type *t) | |
3207 | { | |
3208 | t = check_typedef (t); | |
3209 | return | |
3210 | ((t != NULL) | |
3211 | && ((TYPE_CODE (t) == TYPE_CODE_FLT) | |
3212 | || (TYPE_CODE (t) == TYPE_CODE_DECFLOAT))); | |
3213 | } | |
3214 | ||
e09342b5 TJB |
3215 | /* Return true if TYPE is scalar. */ |
3216 | ||
220475ed | 3217 | int |
e09342b5 TJB |
3218 | is_scalar_type (struct type *type) |
3219 | { | |
f168693b | 3220 | type = check_typedef (type); |
e09342b5 TJB |
3221 | |
3222 | switch (TYPE_CODE (type)) | |
3223 | { | |
3224 | case TYPE_CODE_ARRAY: | |
3225 | case TYPE_CODE_STRUCT: | |
3226 | case TYPE_CODE_UNION: | |
3227 | case TYPE_CODE_SET: | |
3228 | case TYPE_CODE_STRING: | |
e09342b5 TJB |
3229 | return 0; |
3230 | default: | |
3231 | return 1; | |
3232 | } | |
3233 | } | |
3234 | ||
3235 | /* Return true if T is scalar, or a composite type which in practice has | |
90e4670f TJB |
3236 | the memory layout of a scalar type. E.g., an array or struct with only |
3237 | one scalar element inside it, or a union with only scalar elements. */ | |
e09342b5 TJB |
3238 | |
3239 | int | |
3240 | is_scalar_type_recursive (struct type *t) | |
3241 | { | |
f168693b | 3242 | t = check_typedef (t); |
e09342b5 TJB |
3243 | |
3244 | if (is_scalar_type (t)) | |
3245 | return 1; | |
3246 | /* Are we dealing with an array or string of known dimensions? */ | |
3247 | else if ((TYPE_CODE (t) == TYPE_CODE_ARRAY | |
3248 | || TYPE_CODE (t) == TYPE_CODE_STRING) && TYPE_NFIELDS (t) == 1 | |
3249 | && TYPE_CODE (TYPE_INDEX_TYPE (t)) == TYPE_CODE_RANGE) | |
3250 | { | |
3251 | LONGEST low_bound, high_bound; | |
3252 | struct type *elt_type = check_typedef (TYPE_TARGET_TYPE (t)); | |
3253 | ||
3254 | get_discrete_bounds (TYPE_INDEX_TYPE (t), &low_bound, &high_bound); | |
3255 | ||
3256 | return high_bound == low_bound && is_scalar_type_recursive (elt_type); | |
3257 | } | |
3258 | /* Are we dealing with a struct with one element? */ | |
3259 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT && TYPE_NFIELDS (t) == 1) | |
3260 | return is_scalar_type_recursive (TYPE_FIELD_TYPE (t, 0)); | |
3261 | else if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
3262 | { | |
3263 | int i, n = TYPE_NFIELDS (t); | |
3264 | ||
3265 | /* If all elements of the union are scalar, then the union is scalar. */ | |
3266 | for (i = 0; i < n; i++) | |
3267 | if (!is_scalar_type_recursive (TYPE_FIELD_TYPE (t, i))) | |
3268 | return 0; | |
3269 | ||
3270 | return 1; | |
3271 | } | |
3272 | ||
3273 | return 0; | |
3274 | } | |
3275 | ||
6c659fc2 SC |
3276 | /* Return true is T is a class or a union. False otherwise. */ |
3277 | ||
3278 | int | |
3279 | class_or_union_p (const struct type *t) | |
3280 | { | |
3281 | return (TYPE_CODE (t) == TYPE_CODE_STRUCT | |
3282 | || TYPE_CODE (t) == TYPE_CODE_UNION); | |
3283 | } | |
3284 | ||
4e8f195d TT |
3285 | /* A helper function which returns true if types A and B represent the |
3286 | "same" class type. This is true if the types have the same main | |
3287 | type, or the same name. */ | |
3288 | ||
3289 | int | |
3290 | class_types_same_p (const struct type *a, const struct type *b) | |
3291 | { | |
3292 | return (TYPE_MAIN_TYPE (a) == TYPE_MAIN_TYPE (b) | |
3293 | || (TYPE_NAME (a) && TYPE_NAME (b) | |
3294 | && !strcmp (TYPE_NAME (a), TYPE_NAME (b)))); | |
3295 | } | |
3296 | ||
a9d5ef47 SW |
3297 | /* If BASE is an ancestor of DCLASS return the distance between them. |
3298 | otherwise return -1; | |
3299 | eg: | |
3300 | ||
3301 | class A {}; | |
3302 | class B: public A {}; | |
3303 | class C: public B {}; | |
3304 | class D: C {}; | |
3305 | ||
3306 | distance_to_ancestor (A, A, 0) = 0 | |
3307 | distance_to_ancestor (A, B, 0) = 1 | |
3308 | distance_to_ancestor (A, C, 0) = 2 | |
3309 | distance_to_ancestor (A, D, 0) = 3 | |
3310 | ||
3311 | If PUBLIC is 1 then only public ancestors are considered, | |
3312 | and the function returns the distance only if BASE is a public ancestor | |
3313 | of DCLASS. | |
3314 | Eg: | |
3315 | ||
0963b4bd | 3316 | distance_to_ancestor (A, D, 1) = -1. */ |
c906108c | 3317 | |
0526b37a | 3318 | static int |
fe978cb0 | 3319 | distance_to_ancestor (struct type *base, struct type *dclass, int is_public) |
c906108c SS |
3320 | { |
3321 | int i; | |
a9d5ef47 | 3322 | int d; |
c5aa993b | 3323 | |
f168693b SM |
3324 | base = check_typedef (base); |
3325 | dclass = check_typedef (dclass); | |
c906108c | 3326 | |
4e8f195d | 3327 | if (class_types_same_p (base, dclass)) |
a9d5ef47 | 3328 | return 0; |
c906108c SS |
3329 | |
3330 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
4e8f195d | 3331 | { |
fe978cb0 | 3332 | if (is_public && ! BASETYPE_VIA_PUBLIC (dclass, i)) |
0526b37a SW |
3333 | continue; |
3334 | ||
fe978cb0 | 3335 | d = distance_to_ancestor (base, TYPE_BASECLASS (dclass, i), is_public); |
a9d5ef47 SW |
3336 | if (d >= 0) |
3337 | return 1 + d; | |
4e8f195d | 3338 | } |
c906108c | 3339 | |
a9d5ef47 | 3340 | return -1; |
c906108c | 3341 | } |
4e8f195d | 3342 | |
0526b37a SW |
3343 | /* Check whether BASE is an ancestor or base class or DCLASS |
3344 | Return 1 if so, and 0 if not. | |
3345 | Note: If BASE and DCLASS are of the same type, this function | |
3346 | will return 1. So for some class A, is_ancestor (A, A) will | |
3347 | return 1. */ | |
3348 | ||
3349 | int | |
3350 | is_ancestor (struct type *base, struct type *dclass) | |
3351 | { | |
a9d5ef47 | 3352 | return distance_to_ancestor (base, dclass, 0) >= 0; |
0526b37a SW |
3353 | } |
3354 | ||
4e8f195d TT |
3355 | /* Like is_ancestor, but only returns true when BASE is a public |
3356 | ancestor of DCLASS. */ | |
3357 | ||
3358 | int | |
3359 | is_public_ancestor (struct type *base, struct type *dclass) | |
3360 | { | |
a9d5ef47 | 3361 | return distance_to_ancestor (base, dclass, 1) >= 0; |
4e8f195d TT |
3362 | } |
3363 | ||
3364 | /* A helper function for is_unique_ancestor. */ | |
3365 | ||
3366 | static int | |
3367 | is_unique_ancestor_worker (struct type *base, struct type *dclass, | |
3368 | int *offset, | |
8af8e3bc PA |
3369 | const gdb_byte *valaddr, int embedded_offset, |
3370 | CORE_ADDR address, struct value *val) | |
4e8f195d TT |
3371 | { |
3372 | int i, count = 0; | |
3373 | ||
f168693b SM |
3374 | base = check_typedef (base); |
3375 | dclass = check_typedef (dclass); | |
4e8f195d TT |
3376 | |
3377 | for (i = 0; i < TYPE_N_BASECLASSES (dclass) && count < 2; ++i) | |
3378 | { | |
8af8e3bc PA |
3379 | struct type *iter; |
3380 | int this_offset; | |
4e8f195d | 3381 | |
8af8e3bc PA |
3382 | iter = check_typedef (TYPE_BASECLASS (dclass, i)); |
3383 | ||
3384 | this_offset = baseclass_offset (dclass, i, valaddr, embedded_offset, | |
3385 | address, val); | |
4e8f195d TT |
3386 | |
3387 | if (class_types_same_p (base, iter)) | |
3388 | { | |
3389 | /* If this is the first subclass, set *OFFSET and set count | |
3390 | to 1. Otherwise, if this is at the same offset as | |
3391 | previous instances, do nothing. Otherwise, increment | |
3392 | count. */ | |
3393 | if (*offset == -1) | |
3394 | { | |
3395 | *offset = this_offset; | |
3396 | count = 1; | |
3397 | } | |
3398 | else if (this_offset == *offset) | |
3399 | { | |
3400 | /* Nothing. */ | |
3401 | } | |
3402 | else | |
3403 | ++count; | |
3404 | } | |
3405 | else | |
3406 | count += is_unique_ancestor_worker (base, iter, offset, | |
8af8e3bc PA |
3407 | valaddr, |
3408 | embedded_offset + this_offset, | |
3409 | address, val); | |
4e8f195d TT |
3410 | } |
3411 | ||
3412 | return count; | |
3413 | } | |
3414 | ||
3415 | /* Like is_ancestor, but only returns true if BASE is a unique base | |
3416 | class of the type of VAL. */ | |
3417 | ||
3418 | int | |
3419 | is_unique_ancestor (struct type *base, struct value *val) | |
3420 | { | |
3421 | int offset = -1; | |
3422 | ||
3423 | return is_unique_ancestor_worker (base, value_type (val), &offset, | |
8af8e3bc PA |
3424 | value_contents_for_printing (val), |
3425 | value_embedded_offset (val), | |
3426 | value_address (val), val) == 1; | |
4e8f195d TT |
3427 | } |
3428 | ||
7ab4a236 TT |
3429 | /* See gdbtypes.h. */ |
3430 | ||
3431 | enum bfd_endian | |
3432 | type_byte_order (const struct type *type) | |
3433 | { | |
3434 | bfd_endian byteorder = gdbarch_byte_order (get_type_arch (type)); | |
3435 | if (TYPE_ENDIANITY_NOT_DEFAULT (type)) | |
3436 | { | |
3437 | if (byteorder == BFD_ENDIAN_BIG) | |
3438 | return BFD_ENDIAN_LITTLE; | |
3439 | else | |
3440 | { | |
3441 | gdb_assert (byteorder == BFD_ENDIAN_LITTLE); | |
3442 | return BFD_ENDIAN_BIG; | |
3443 | } | |
3444 | } | |
3445 | ||
3446 | return byteorder; | |
3447 | } | |
3448 | ||
c906108c | 3449 | \f |
5212577a | 3450 | /* Overload resolution. */ |
c906108c | 3451 | |
6403aeea SW |
3452 | /* Return the sum of the rank of A with the rank of B. */ |
3453 | ||
3454 | struct rank | |
3455 | sum_ranks (struct rank a, struct rank b) | |
3456 | { | |
3457 | struct rank c; | |
3458 | c.rank = a.rank + b.rank; | |
a9d5ef47 | 3459 | c.subrank = a.subrank + b.subrank; |
6403aeea SW |
3460 | return c; |
3461 | } | |
3462 | ||
3463 | /* Compare rank A and B and return: | |
3464 | 0 if a = b | |
3465 | 1 if a is better than b | |
3466 | -1 if b is better than a. */ | |
3467 | ||
3468 | int | |
3469 | compare_ranks (struct rank a, struct rank b) | |
3470 | { | |
3471 | if (a.rank == b.rank) | |
a9d5ef47 SW |
3472 | { |
3473 | if (a.subrank == b.subrank) | |
3474 | return 0; | |
3475 | if (a.subrank < b.subrank) | |
3476 | return 1; | |
3477 | if (a.subrank > b.subrank) | |
3478 | return -1; | |
3479 | } | |
6403aeea SW |
3480 | |
3481 | if (a.rank < b.rank) | |
3482 | return 1; | |
3483 | ||
0963b4bd | 3484 | /* a.rank > b.rank */ |
6403aeea SW |
3485 | return -1; |
3486 | } | |
c5aa993b | 3487 | |
0963b4bd | 3488 | /* Functions for overload resolution begin here. */ |
c906108c SS |
3489 | |
3490 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
3491 | 0 => A and B are identical |
3492 | 1 => A and B are incomparable | |
3493 | 2 => A is better than B | |
3494 | 3 => A is worse than B */ | |
c906108c SS |
3495 | |
3496 | int | |
82ceee50 | 3497 | compare_badness (const badness_vector &a, const badness_vector &b) |
c906108c SS |
3498 | { |
3499 | int i; | |
3500 | int tmp; | |
c5aa993b JM |
3501 | short found_pos = 0; /* any positives in c? */ |
3502 | short found_neg = 0; /* any negatives in c? */ | |
3503 | ||
82ceee50 PA |
3504 | /* differing sizes => incomparable */ |
3505 | if (a.size () != b.size ()) | |
c906108c SS |
3506 | return 1; |
3507 | ||
c5aa993b | 3508 | /* Subtract b from a */ |
82ceee50 | 3509 | for (i = 0; i < a.size (); i++) |
c906108c | 3510 | { |
82ceee50 | 3511 | tmp = compare_ranks (b[i], a[i]); |
c906108c | 3512 | if (tmp > 0) |
c5aa993b | 3513 | found_pos = 1; |
c906108c | 3514 | else if (tmp < 0) |
c5aa993b | 3515 | found_neg = 1; |
c906108c SS |
3516 | } |
3517 | ||
3518 | if (found_pos) | |
3519 | { | |
3520 | if (found_neg) | |
c5aa993b | 3521 | return 1; /* incomparable */ |
c906108c | 3522 | else |
c5aa993b | 3523 | return 3; /* A > B */ |
c906108c | 3524 | } |
c5aa993b JM |
3525 | else |
3526 | /* no positives */ | |
c906108c SS |
3527 | { |
3528 | if (found_neg) | |
c5aa993b | 3529 | return 2; /* A < B */ |
c906108c | 3530 | else |
c5aa993b | 3531 | return 0; /* A == B */ |
c906108c SS |
3532 | } |
3533 | } | |
3534 | ||
6b1747cd | 3535 | /* Rank a function by comparing its parameter types (PARMS), to the |
82ceee50 PA |
3536 | types of an argument list (ARGS). Return the badness vector. This |
3537 | has ARGS.size() + 1 entries. */ | |
c906108c | 3538 | |
82ceee50 | 3539 | badness_vector |
6b1747cd PA |
3540 | rank_function (gdb::array_view<type *> parms, |
3541 | gdb::array_view<value *> args) | |
c906108c | 3542 | { |
82ceee50 PA |
3543 | /* add 1 for the length-match rank. */ |
3544 | badness_vector bv; | |
3545 | bv.reserve (1 + args.size ()); | |
c906108c SS |
3546 | |
3547 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 3548 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 3549 | |
c906108c | 3550 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
3551 | arguments and ellipsis parameter lists, we should consider those |
3552 | and rank the length-match more finely. */ | |
c906108c | 3553 | |
82ceee50 PA |
3554 | bv.push_back ((args.size () != parms.size ()) |
3555 | ? LENGTH_MISMATCH_BADNESS | |
3556 | : EXACT_MATCH_BADNESS); | |
c906108c | 3557 | |
0963b4bd | 3558 | /* Now rank all the parameters of the candidate function. */ |
82ceee50 PA |
3559 | size_t min_len = std::min (parms.size (), args.size ()); |
3560 | ||
3561 | for (size_t i = 0; i < min_len; i++) | |
3562 | bv.push_back (rank_one_type (parms[i], value_type (args[i]), | |
3563 | args[i])); | |
c906108c | 3564 | |
0963b4bd | 3565 | /* If more arguments than parameters, add dummy entries. */ |
82ceee50 PA |
3566 | for (size_t i = min_len; i < args.size (); i++) |
3567 | bv.push_back (TOO_FEW_PARAMS_BADNESS); | |
c906108c SS |
3568 | |
3569 | return bv; | |
3570 | } | |
3571 | ||
973ccf8b DJ |
3572 | /* Compare the names of two integer types, assuming that any sign |
3573 | qualifiers have been checked already. We do it this way because | |
3574 | there may be an "int" in the name of one of the types. */ | |
3575 | ||
3576 | static int | |
3577 | integer_types_same_name_p (const char *first, const char *second) | |
3578 | { | |
3579 | int first_p, second_p; | |
3580 | ||
7ba81444 MS |
3581 | /* If both are shorts, return 1; if neither is a short, keep |
3582 | checking. */ | |
973ccf8b DJ |
3583 | first_p = (strstr (first, "short") != NULL); |
3584 | second_p = (strstr (second, "short") != NULL); | |
3585 | if (first_p && second_p) | |
3586 | return 1; | |
3587 | if (first_p || second_p) | |
3588 | return 0; | |
3589 | ||
3590 | /* Likewise for long. */ | |
3591 | first_p = (strstr (first, "long") != NULL); | |
3592 | second_p = (strstr (second, "long") != NULL); | |
3593 | if (first_p && second_p) | |
3594 | return 1; | |
3595 | if (first_p || second_p) | |
3596 | return 0; | |
3597 | ||
3598 | /* Likewise for char. */ | |
3599 | first_p = (strstr (first, "char") != NULL); | |
3600 | second_p = (strstr (second, "char") != NULL); | |
3601 | if (first_p && second_p) | |
3602 | return 1; | |
3603 | if (first_p || second_p) | |
3604 | return 0; | |
3605 | ||
3606 | /* They must both be ints. */ | |
3607 | return 1; | |
3608 | } | |
3609 | ||
894882e3 TT |
3610 | /* Compares type A to type B. Returns true if they represent the same |
3611 | type, false otherwise. */ | |
7062b0a0 | 3612 | |
894882e3 | 3613 | bool |
7062b0a0 SW |
3614 | types_equal (struct type *a, struct type *b) |
3615 | { | |
3616 | /* Identical type pointers. */ | |
3617 | /* However, this still doesn't catch all cases of same type for b | |
3618 | and a. The reason is that builtin types are different from | |
3619 | the same ones constructed from the object. */ | |
3620 | if (a == b) | |
894882e3 | 3621 | return true; |
7062b0a0 SW |
3622 | |
3623 | /* Resolve typedefs */ | |
3624 | if (TYPE_CODE (a) == TYPE_CODE_TYPEDEF) | |
3625 | a = check_typedef (a); | |
3626 | if (TYPE_CODE (b) == TYPE_CODE_TYPEDEF) | |
3627 | b = check_typedef (b); | |
3628 | ||
3629 | /* If after resolving typedefs a and b are not of the same type | |
3630 | code then they are not equal. */ | |
3631 | if (TYPE_CODE (a) != TYPE_CODE (b)) | |
894882e3 | 3632 | return false; |
7062b0a0 SW |
3633 | |
3634 | /* If a and b are both pointers types or both reference types then | |
3635 | they are equal of the same type iff the objects they refer to are | |
3636 | of the same type. */ | |
3637 | if (TYPE_CODE (a) == TYPE_CODE_PTR | |
3638 | || TYPE_CODE (a) == TYPE_CODE_REF) | |
3639 | return types_equal (TYPE_TARGET_TYPE (a), | |
3640 | TYPE_TARGET_TYPE (b)); | |
3641 | ||
0963b4bd | 3642 | /* Well, damnit, if the names are exactly the same, I'll say they |
7062b0a0 SW |
3643 | are exactly the same. This happens when we generate method |
3644 | stubs. The types won't point to the same address, but they | |
0963b4bd | 3645 | really are the same. */ |
7062b0a0 SW |
3646 | |
3647 | if (TYPE_NAME (a) && TYPE_NAME (b) | |
3648 | && strcmp (TYPE_NAME (a), TYPE_NAME (b)) == 0) | |
894882e3 | 3649 | return true; |
7062b0a0 SW |
3650 | |
3651 | /* Check if identical after resolving typedefs. */ | |
3652 | if (a == b) | |
894882e3 | 3653 | return true; |
7062b0a0 | 3654 | |
9ce98649 TT |
3655 | /* Two function types are equal if their argument and return types |
3656 | are equal. */ | |
3657 | if (TYPE_CODE (a) == TYPE_CODE_FUNC) | |
3658 | { | |
3659 | int i; | |
3660 | ||
3661 | if (TYPE_NFIELDS (a) != TYPE_NFIELDS (b)) | |
894882e3 | 3662 | return false; |
9ce98649 TT |
3663 | |
3664 | if (!types_equal (TYPE_TARGET_TYPE (a), TYPE_TARGET_TYPE (b))) | |
894882e3 | 3665 | return false; |
9ce98649 TT |
3666 | |
3667 | for (i = 0; i < TYPE_NFIELDS (a); ++i) | |
3668 | if (!types_equal (TYPE_FIELD_TYPE (a, i), TYPE_FIELD_TYPE (b, i))) | |
894882e3 | 3669 | return false; |
9ce98649 | 3670 | |
894882e3 | 3671 | return true; |
9ce98649 TT |
3672 | } |
3673 | ||
894882e3 | 3674 | return false; |
7062b0a0 | 3675 | } |
ca092b61 DE |
3676 | \f |
3677 | /* Deep comparison of types. */ | |
3678 | ||
3679 | /* An entry in the type-equality bcache. */ | |
3680 | ||
894882e3 | 3681 | struct type_equality_entry |
ca092b61 | 3682 | { |
894882e3 TT |
3683 | type_equality_entry (struct type *t1, struct type *t2) |
3684 | : type1 (t1), | |
3685 | type2 (t2) | |
3686 | { | |
3687 | } | |
ca092b61 | 3688 | |
894882e3 TT |
3689 | struct type *type1, *type2; |
3690 | }; | |
ca092b61 | 3691 | |
894882e3 TT |
3692 | /* A helper function to compare two strings. Returns true if they are |
3693 | the same, false otherwise. Handles NULLs properly. */ | |
ca092b61 | 3694 | |
894882e3 | 3695 | static bool |
ca092b61 DE |
3696 | compare_maybe_null_strings (const char *s, const char *t) |
3697 | { | |
894882e3 TT |
3698 | if (s == NULL || t == NULL) |
3699 | return s == t; | |
ca092b61 DE |
3700 | return strcmp (s, t) == 0; |
3701 | } | |
3702 | ||
3703 | /* A helper function for check_types_worklist that checks two types for | |
894882e3 TT |
3704 | "deep" equality. Returns true if the types are considered the |
3705 | same, false otherwise. */ | |
ca092b61 | 3706 | |
894882e3 | 3707 | static bool |
ca092b61 | 3708 | check_types_equal (struct type *type1, struct type *type2, |
894882e3 | 3709 | std::vector<type_equality_entry> *worklist) |
ca092b61 | 3710 | { |
f168693b SM |
3711 | type1 = check_typedef (type1); |
3712 | type2 = check_typedef (type2); | |
ca092b61 DE |
3713 | |
3714 | if (type1 == type2) | |
894882e3 | 3715 | return true; |
ca092b61 DE |
3716 | |
3717 | if (TYPE_CODE (type1) != TYPE_CODE (type2) | |
3718 | || TYPE_LENGTH (type1) != TYPE_LENGTH (type2) | |
3719 | || TYPE_UNSIGNED (type1) != TYPE_UNSIGNED (type2) | |
3720 | || TYPE_NOSIGN (type1) != TYPE_NOSIGN (type2) | |
34877895 | 3721 | || TYPE_ENDIANITY_NOT_DEFAULT (type1) != TYPE_ENDIANITY_NOT_DEFAULT (type2) |
ca092b61 DE |
3722 | || TYPE_VARARGS (type1) != TYPE_VARARGS (type2) |
3723 | || TYPE_VECTOR (type1) != TYPE_VECTOR (type2) | |
3724 | || TYPE_NOTTEXT (type1) != TYPE_NOTTEXT (type2) | |
3725 | || TYPE_INSTANCE_FLAGS (type1) != TYPE_INSTANCE_FLAGS (type2) | |
3726 | || TYPE_NFIELDS (type1) != TYPE_NFIELDS (type2)) | |
894882e3 | 3727 | return false; |
ca092b61 | 3728 | |
e86ca25f | 3729 | if (!compare_maybe_null_strings (TYPE_NAME (type1), TYPE_NAME (type2))) |
894882e3 | 3730 | return false; |
ca092b61 | 3731 | if (!compare_maybe_null_strings (TYPE_NAME (type1), TYPE_NAME (type2))) |
894882e3 | 3732 | return false; |
ca092b61 DE |
3733 | |
3734 | if (TYPE_CODE (type1) == TYPE_CODE_RANGE) | |
3735 | { | |
0f59d5fc | 3736 | if (*TYPE_RANGE_DATA (type1) != *TYPE_RANGE_DATA (type2)) |
894882e3 | 3737 | return false; |
ca092b61 DE |
3738 | } |
3739 | else | |
3740 | { | |
3741 | int i; | |
3742 | ||
3743 | for (i = 0; i < TYPE_NFIELDS (type1); ++i) | |
3744 | { | |
3745 | const struct field *field1 = &TYPE_FIELD (type1, i); | |
3746 | const struct field *field2 = &TYPE_FIELD (type2, i); | |
ca092b61 DE |
3747 | |
3748 | if (FIELD_ARTIFICIAL (*field1) != FIELD_ARTIFICIAL (*field2) | |
3749 | || FIELD_BITSIZE (*field1) != FIELD_BITSIZE (*field2) | |
3750 | || FIELD_LOC_KIND (*field1) != FIELD_LOC_KIND (*field2)) | |
894882e3 | 3751 | return false; |
ca092b61 DE |
3752 | if (!compare_maybe_null_strings (FIELD_NAME (*field1), |
3753 | FIELD_NAME (*field2))) | |
894882e3 | 3754 | return false; |
ca092b61 DE |
3755 | switch (FIELD_LOC_KIND (*field1)) |
3756 | { | |
3757 | case FIELD_LOC_KIND_BITPOS: | |
3758 | if (FIELD_BITPOS (*field1) != FIELD_BITPOS (*field2)) | |
894882e3 | 3759 | return false; |
ca092b61 DE |
3760 | break; |
3761 | case FIELD_LOC_KIND_ENUMVAL: | |
3762 | if (FIELD_ENUMVAL (*field1) != FIELD_ENUMVAL (*field2)) | |
894882e3 | 3763 | return false; |
ca092b61 DE |
3764 | break; |
3765 | case FIELD_LOC_KIND_PHYSADDR: | |
3766 | if (FIELD_STATIC_PHYSADDR (*field1) | |
3767 | != FIELD_STATIC_PHYSADDR (*field2)) | |
894882e3 | 3768 | return false; |
ca092b61 DE |
3769 | break; |
3770 | case FIELD_LOC_KIND_PHYSNAME: | |
3771 | if (!compare_maybe_null_strings (FIELD_STATIC_PHYSNAME (*field1), | |
3772 | FIELD_STATIC_PHYSNAME (*field2))) | |
894882e3 | 3773 | return false; |
ca092b61 DE |
3774 | break; |
3775 | case FIELD_LOC_KIND_DWARF_BLOCK: | |
3776 | { | |
3777 | struct dwarf2_locexpr_baton *block1, *block2; | |
3778 | ||
3779 | block1 = FIELD_DWARF_BLOCK (*field1); | |
3780 | block2 = FIELD_DWARF_BLOCK (*field2); | |
3781 | if (block1->per_cu != block2->per_cu | |
3782 | || block1->size != block2->size | |
3783 | || memcmp (block1->data, block2->data, block1->size) != 0) | |
894882e3 | 3784 | return false; |
ca092b61 DE |
3785 | } |
3786 | break; | |
3787 | default: | |
3788 | internal_error (__FILE__, __LINE__, _("Unsupported field kind " | |
3789 | "%d by check_types_equal"), | |
3790 | FIELD_LOC_KIND (*field1)); | |
3791 | } | |
3792 | ||
894882e3 | 3793 | worklist->emplace_back (FIELD_TYPE (*field1), FIELD_TYPE (*field2)); |
ca092b61 DE |
3794 | } |
3795 | } | |
3796 | ||
3797 | if (TYPE_TARGET_TYPE (type1) != NULL) | |
3798 | { | |
ca092b61 | 3799 | if (TYPE_TARGET_TYPE (type2) == NULL) |
894882e3 | 3800 | return false; |
ca092b61 | 3801 | |
894882e3 TT |
3802 | worklist->emplace_back (TYPE_TARGET_TYPE (type1), |
3803 | TYPE_TARGET_TYPE (type2)); | |
ca092b61 DE |
3804 | } |
3805 | else if (TYPE_TARGET_TYPE (type2) != NULL) | |
894882e3 | 3806 | return false; |
ca092b61 | 3807 | |
894882e3 | 3808 | return true; |
ca092b61 DE |
3809 | } |
3810 | ||
894882e3 TT |
3811 | /* Check types on a worklist for equality. Returns false if any pair |
3812 | is not equal, true if they are all considered equal. */ | |
ca092b61 | 3813 | |
894882e3 TT |
3814 | static bool |
3815 | check_types_worklist (std::vector<type_equality_entry> *worklist, | |
dfb65191 | 3816 | gdb::bcache *cache) |
ca092b61 | 3817 | { |
894882e3 | 3818 | while (!worklist->empty ()) |
ca092b61 | 3819 | { |
ca092b61 DE |
3820 | int added; |
3821 | ||
894882e3 TT |
3822 | struct type_equality_entry entry = std::move (worklist->back ()); |
3823 | worklist->pop_back (); | |
ca092b61 DE |
3824 | |
3825 | /* If the type pair has already been visited, we know it is | |
3826 | ok. */ | |
25629dfd | 3827 | cache->insert (&entry, sizeof (entry), &added); |
ca092b61 DE |
3828 | if (!added) |
3829 | continue; | |
3830 | ||
894882e3 TT |
3831 | if (!check_types_equal (entry.type1, entry.type2, worklist)) |
3832 | return false; | |
ca092b61 | 3833 | } |
7062b0a0 | 3834 | |
894882e3 | 3835 | return true; |
ca092b61 DE |
3836 | } |
3837 | ||
894882e3 TT |
3838 | /* Return true if types TYPE1 and TYPE2 are equal, as determined by a |
3839 | "deep comparison". Otherwise return false. */ | |
ca092b61 | 3840 | |
894882e3 | 3841 | bool |
ca092b61 DE |
3842 | types_deeply_equal (struct type *type1, struct type *type2) |
3843 | { | |
894882e3 | 3844 | std::vector<type_equality_entry> worklist; |
ca092b61 DE |
3845 | |
3846 | gdb_assert (type1 != NULL && type2 != NULL); | |
3847 | ||
3848 | /* Early exit for the simple case. */ | |
3849 | if (type1 == type2) | |
894882e3 | 3850 | return true; |
ca092b61 | 3851 | |
dfb65191 | 3852 | gdb::bcache cache (nullptr, nullptr); |
894882e3 | 3853 | worklist.emplace_back (type1, type2); |
25629dfd | 3854 | return check_types_worklist (&worklist, &cache); |
ca092b61 | 3855 | } |
3f2f83dd KB |
3856 | |
3857 | /* Allocated status of type TYPE. Return zero if type TYPE is allocated. | |
3858 | Otherwise return one. */ | |
3859 | ||
3860 | int | |
3861 | type_not_allocated (const struct type *type) | |
3862 | { | |
3863 | struct dynamic_prop *prop = TYPE_ALLOCATED_PROP (type); | |
3864 | ||
3865 | return (prop && TYPE_DYN_PROP_KIND (prop) == PROP_CONST | |
3866 | && !TYPE_DYN_PROP_ADDR (prop)); | |
3867 | } | |
3868 | ||
3869 | /* Associated status of type TYPE. Return zero if type TYPE is associated. | |
3870 | Otherwise return one. */ | |
3871 | ||
3872 | int | |
3873 | type_not_associated (const struct type *type) | |
3874 | { | |
3875 | struct dynamic_prop *prop = TYPE_ASSOCIATED_PROP (type); | |
3876 | ||
3877 | return (prop && TYPE_DYN_PROP_KIND (prop) == PROP_CONST | |
3878 | && !TYPE_DYN_PROP_ADDR (prop)); | |
3879 | } | |
9293fc63 SM |
3880 | |
3881 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_PTR. */ | |
3882 | ||
3883 | static struct rank | |
3884 | rank_one_type_parm_ptr (struct type *parm, struct type *arg, struct value *value) | |
3885 | { | |
3886 | struct rank rank = {0,0}; | |
3887 | ||
3888 | switch (TYPE_CODE (arg)) | |
3889 | { | |
3890 | case TYPE_CODE_PTR: | |
3891 | ||
3892 | /* Allowed pointer conversions are: | |
3893 | (a) pointer to void-pointer conversion. */ | |
3894 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) | |
3895 | return VOID_PTR_CONVERSION_BADNESS; | |
3896 | ||
3897 | /* (b) pointer to ancestor-pointer conversion. */ | |
3898 | rank.subrank = distance_to_ancestor (TYPE_TARGET_TYPE (parm), | |
3899 | TYPE_TARGET_TYPE (arg), | |
3900 | 0); | |
3901 | if (rank.subrank >= 0) | |
3902 | return sum_ranks (BASE_PTR_CONVERSION_BADNESS, rank); | |
3903 | ||
3904 | return INCOMPATIBLE_TYPE_BADNESS; | |
3905 | case TYPE_CODE_ARRAY: | |
3906 | { | |
3907 | struct type *t1 = TYPE_TARGET_TYPE (parm); | |
3908 | struct type *t2 = TYPE_TARGET_TYPE (arg); | |
3909 | ||
3910 | if (types_equal (t1, t2)) | |
3911 | { | |
3912 | /* Make sure they are CV equal. */ | |
3913 | if (TYPE_CONST (t1) != TYPE_CONST (t2)) | |
3914 | rank.subrank |= CV_CONVERSION_CONST; | |
3915 | if (TYPE_VOLATILE (t1) != TYPE_VOLATILE (t2)) | |
3916 | rank.subrank |= CV_CONVERSION_VOLATILE; | |
3917 | if (rank.subrank != 0) | |
3918 | return sum_ranks (CV_CONVERSION_BADNESS, rank); | |
3919 | return EXACT_MATCH_BADNESS; | |
3920 | } | |
3921 | return INCOMPATIBLE_TYPE_BADNESS; | |
3922 | } | |
3923 | case TYPE_CODE_FUNC: | |
3924 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL); | |
3925 | case TYPE_CODE_INT: | |
3926 | if (value != NULL && TYPE_CODE (value_type (value)) == TYPE_CODE_INT) | |
3927 | { | |
3928 | if (value_as_long (value) == 0) | |
3929 | { | |
3930 | /* Null pointer conversion: allow it to be cast to a pointer. | |
3931 | [4.10.1 of C++ standard draft n3290] */ | |
3932 | return NULL_POINTER_CONVERSION_BADNESS; | |
3933 | } | |
3934 | else | |
3935 | { | |
3936 | /* If type checking is disabled, allow the conversion. */ | |
3937 | if (!strict_type_checking) | |
3938 | return NS_INTEGER_POINTER_CONVERSION_BADNESS; | |
3939 | } | |
3940 | } | |
3941 | /* fall through */ | |
3942 | case TYPE_CODE_ENUM: | |
3943 | case TYPE_CODE_FLAGS: | |
3944 | case TYPE_CODE_CHAR: | |
3945 | case TYPE_CODE_RANGE: | |
3946 | case TYPE_CODE_BOOL: | |
3947 | default: | |
3948 | return INCOMPATIBLE_TYPE_BADNESS; | |
3949 | } | |
3950 | } | |
3951 | ||
b9f4512f SM |
3952 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_ARRAY. */ |
3953 | ||
3954 | static struct rank | |
3955 | rank_one_type_parm_array (struct type *parm, struct type *arg, struct value *value) | |
3956 | { | |
3957 | switch (TYPE_CODE (arg)) | |
3958 | { | |
3959 | case TYPE_CODE_PTR: | |
3960 | case TYPE_CODE_ARRAY: | |
3961 | return rank_one_type (TYPE_TARGET_TYPE (parm), | |
3962 | TYPE_TARGET_TYPE (arg), NULL); | |
3963 | default: | |
3964 | return INCOMPATIBLE_TYPE_BADNESS; | |
3965 | } | |
3966 | } | |
3967 | ||
f1f832d6 SM |
3968 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_FUNC. */ |
3969 | ||
3970 | static struct rank | |
3971 | rank_one_type_parm_func (struct type *parm, struct type *arg, struct value *value) | |
3972 | { | |
3973 | switch (TYPE_CODE (arg)) | |
3974 | { | |
3975 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
3976 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL); | |
3977 | default: | |
3978 | return INCOMPATIBLE_TYPE_BADNESS; | |
3979 | } | |
3980 | } | |
3981 | ||
34910087 SM |
3982 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_INT. */ |
3983 | ||
3984 | static struct rank | |
3985 | rank_one_type_parm_int (struct type *parm, struct type *arg, struct value *value) | |
3986 | { | |
3987 | switch (TYPE_CODE (arg)) | |
3988 | { | |
3989 | case TYPE_CODE_INT: | |
3990 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
3991 | { | |
3992 | /* Deal with signed, unsigned, and plain chars and | |
3993 | signed and unsigned ints. */ | |
3994 | if (TYPE_NOSIGN (parm)) | |
3995 | { | |
3996 | /* This case only for character types. */ | |
3997 | if (TYPE_NOSIGN (arg)) | |
3998 | return EXACT_MATCH_BADNESS; /* plain char -> plain char */ | |
3999 | else /* signed/unsigned char -> plain char */ | |
4000 | return INTEGER_CONVERSION_BADNESS; | |
4001 | } | |
4002 | else if (TYPE_UNSIGNED (parm)) | |
4003 | { | |
4004 | if (TYPE_UNSIGNED (arg)) | |
4005 | { | |
4006 | /* unsigned int -> unsigned int, or | |
4007 | unsigned long -> unsigned long */ | |
4008 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
4009 | TYPE_NAME (arg))) | |
4010 | return EXACT_MATCH_BADNESS; | |
4011 | else if (integer_types_same_name_p (TYPE_NAME (arg), | |
4012 | "int") | |
4013 | && integer_types_same_name_p (TYPE_NAME (parm), | |
4014 | "long")) | |
4015 | /* unsigned int -> unsigned long */ | |
4016 | return INTEGER_PROMOTION_BADNESS; | |
4017 | else | |
4018 | /* unsigned long -> unsigned int */ | |
4019 | return INTEGER_CONVERSION_BADNESS; | |
4020 | } | |
4021 | else | |
4022 | { | |
4023 | if (integer_types_same_name_p (TYPE_NAME (arg), | |
4024 | "long") | |
4025 | && integer_types_same_name_p (TYPE_NAME (parm), | |
4026 | "int")) | |
4027 | /* signed long -> unsigned int */ | |
4028 | return INTEGER_CONVERSION_BADNESS; | |
4029 | else | |
4030 | /* signed int/long -> unsigned int/long */ | |
4031 | return INTEGER_CONVERSION_BADNESS; | |
4032 | } | |
4033 | } | |
4034 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
4035 | { | |
4036 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
4037 | TYPE_NAME (arg))) | |
4038 | return EXACT_MATCH_BADNESS; | |
4039 | else if (integer_types_same_name_p (TYPE_NAME (arg), | |
4040 | "int") | |
4041 | && integer_types_same_name_p (TYPE_NAME (parm), | |
4042 | "long")) | |
4043 | return INTEGER_PROMOTION_BADNESS; | |
4044 | else | |
4045 | return INTEGER_CONVERSION_BADNESS; | |
4046 | } | |
4047 | else | |
4048 | return INTEGER_CONVERSION_BADNESS; | |
4049 | } | |
4050 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
4051 | return INTEGER_PROMOTION_BADNESS; | |
4052 | else | |
4053 | return INTEGER_CONVERSION_BADNESS; | |
4054 | case TYPE_CODE_ENUM: | |
4055 | case TYPE_CODE_FLAGS: | |
4056 | case TYPE_CODE_CHAR: | |
4057 | case TYPE_CODE_RANGE: | |
4058 | case TYPE_CODE_BOOL: | |
4059 | if (TYPE_DECLARED_CLASS (arg)) | |
4060 | return INCOMPATIBLE_TYPE_BADNESS; | |
4061 | return INTEGER_PROMOTION_BADNESS; | |
4062 | case TYPE_CODE_FLT: | |
4063 | return INT_FLOAT_CONVERSION_BADNESS; | |
4064 | case TYPE_CODE_PTR: | |
4065 | return NS_POINTER_CONVERSION_BADNESS; | |
4066 | default: | |
4067 | return INCOMPATIBLE_TYPE_BADNESS; | |
4068 | } | |
4069 | } | |
4070 | ||
793cd1d2 SM |
4071 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_ENUM. */ |
4072 | ||
4073 | static struct rank | |
4074 | rank_one_type_parm_enum (struct type *parm, struct type *arg, struct value *value) | |
4075 | { | |
4076 | switch (TYPE_CODE (arg)) | |
4077 | { | |
4078 | case TYPE_CODE_INT: | |
4079 | case TYPE_CODE_CHAR: | |
4080 | case TYPE_CODE_RANGE: | |
4081 | case TYPE_CODE_BOOL: | |
4082 | case TYPE_CODE_ENUM: | |
4083 | if (TYPE_DECLARED_CLASS (parm) || TYPE_DECLARED_CLASS (arg)) | |
4084 | return INCOMPATIBLE_TYPE_BADNESS; | |
4085 | return INTEGER_CONVERSION_BADNESS; | |
4086 | case TYPE_CODE_FLT: | |
4087 | return INT_FLOAT_CONVERSION_BADNESS; | |
4088 | default: | |
4089 | return INCOMPATIBLE_TYPE_BADNESS; | |
4090 | } | |
4091 | } | |
4092 | ||
41ea4728 SM |
4093 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_CHAR. */ |
4094 | ||
4095 | static struct rank | |
4096 | rank_one_type_parm_char (struct type *parm, struct type *arg, struct value *value) | |
4097 | { | |
4098 | switch (TYPE_CODE (arg)) | |
4099 | { | |
4100 | case TYPE_CODE_RANGE: | |
4101 | case TYPE_CODE_BOOL: | |
4102 | case TYPE_CODE_ENUM: | |
4103 | if (TYPE_DECLARED_CLASS (arg)) | |
4104 | return INCOMPATIBLE_TYPE_BADNESS; | |
4105 | return INTEGER_CONVERSION_BADNESS; | |
4106 | case TYPE_CODE_FLT: | |
4107 | return INT_FLOAT_CONVERSION_BADNESS; | |
4108 | case TYPE_CODE_INT: | |
4109 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
4110 | return INTEGER_CONVERSION_BADNESS; | |
4111 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
4112 | return INTEGER_PROMOTION_BADNESS; | |
4113 | /* fall through */ | |
4114 | case TYPE_CODE_CHAR: | |
4115 | /* Deal with signed, unsigned, and plain chars for C++ and | |
4116 | with int cases falling through from previous case. */ | |
4117 | if (TYPE_NOSIGN (parm)) | |
4118 | { | |
4119 | if (TYPE_NOSIGN (arg)) | |
4120 | return EXACT_MATCH_BADNESS; | |
4121 | else | |
4122 | return INTEGER_CONVERSION_BADNESS; | |
4123 | } | |
4124 | else if (TYPE_UNSIGNED (parm)) | |
4125 | { | |
4126 | if (TYPE_UNSIGNED (arg)) | |
4127 | return EXACT_MATCH_BADNESS; | |
4128 | else | |
4129 | return INTEGER_PROMOTION_BADNESS; | |
4130 | } | |
4131 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
4132 | return EXACT_MATCH_BADNESS; | |
4133 | else | |
4134 | return INTEGER_CONVERSION_BADNESS; | |
4135 | default: | |
4136 | return INCOMPATIBLE_TYPE_BADNESS; | |
4137 | } | |
4138 | } | |
4139 | ||
0dd322dc SM |
4140 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_RANGE. */ |
4141 | ||
4142 | static struct rank | |
4143 | rank_one_type_parm_range (struct type *parm, struct type *arg, struct value *value) | |
4144 | { | |
4145 | switch (TYPE_CODE (arg)) | |
4146 | { | |
4147 | case TYPE_CODE_INT: | |
4148 | case TYPE_CODE_CHAR: | |
4149 | case TYPE_CODE_RANGE: | |
4150 | case TYPE_CODE_BOOL: | |
4151 | case TYPE_CODE_ENUM: | |
4152 | return INTEGER_CONVERSION_BADNESS; | |
4153 | case TYPE_CODE_FLT: | |
4154 | return INT_FLOAT_CONVERSION_BADNESS; | |
4155 | default: | |
4156 | return INCOMPATIBLE_TYPE_BADNESS; | |
4157 | } | |
4158 | } | |
4159 | ||
2c509035 SM |
4160 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_BOOL. */ |
4161 | ||
4162 | static struct rank | |
4163 | rank_one_type_parm_bool (struct type *parm, struct type *arg, struct value *value) | |
4164 | { | |
4165 | switch (TYPE_CODE (arg)) | |
4166 | { | |
4167 | /* n3290 draft, section 4.12.1 (conv.bool): | |
4168 | ||
4169 | "A prvalue of arithmetic, unscoped enumeration, pointer, or | |
4170 | pointer to member type can be converted to a prvalue of type | |
4171 | bool. A zero value, null pointer value, or null member pointer | |
4172 | value is converted to false; any other value is converted to | |
4173 | true. A prvalue of type std::nullptr_t can be converted to a | |
4174 | prvalue of type bool; the resulting value is false." */ | |
4175 | case TYPE_CODE_INT: | |
4176 | case TYPE_CODE_CHAR: | |
4177 | case TYPE_CODE_ENUM: | |
4178 | case TYPE_CODE_FLT: | |
4179 | case TYPE_CODE_MEMBERPTR: | |
4180 | case TYPE_CODE_PTR: | |
4181 | return BOOL_CONVERSION_BADNESS; | |
4182 | case TYPE_CODE_RANGE: | |
4183 | return INCOMPATIBLE_TYPE_BADNESS; | |
4184 | case TYPE_CODE_BOOL: | |
4185 | return EXACT_MATCH_BADNESS; | |
4186 | default: | |
4187 | return INCOMPATIBLE_TYPE_BADNESS; | |
4188 | } | |
4189 | } | |
4190 | ||
7f17b20d SM |
4191 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_FLOAT. */ |
4192 | ||
4193 | static struct rank | |
4194 | rank_one_type_parm_float (struct type *parm, struct type *arg, struct value *value) | |
4195 | { | |
4196 | switch (TYPE_CODE (arg)) | |
4197 | { | |
4198 | case TYPE_CODE_FLT: | |
4199 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
4200 | return FLOAT_PROMOTION_BADNESS; | |
4201 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
4202 | return EXACT_MATCH_BADNESS; | |
4203 | else | |
4204 | return FLOAT_CONVERSION_BADNESS; | |
4205 | case TYPE_CODE_INT: | |
4206 | case TYPE_CODE_BOOL: | |
4207 | case TYPE_CODE_ENUM: | |
4208 | case TYPE_CODE_RANGE: | |
4209 | case TYPE_CODE_CHAR: | |
4210 | return INT_FLOAT_CONVERSION_BADNESS; | |
4211 | default: | |
4212 | return INCOMPATIBLE_TYPE_BADNESS; | |
4213 | } | |
4214 | } | |
4215 | ||
2598a94b SM |
4216 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_COMPLEX. */ |
4217 | ||
4218 | static struct rank | |
4219 | rank_one_type_parm_complex (struct type *parm, struct type *arg, struct value *value) | |
4220 | { | |
4221 | switch (TYPE_CODE (arg)) | |
4222 | { /* Strictly not needed for C++, but... */ | |
4223 | case TYPE_CODE_FLT: | |
4224 | return FLOAT_PROMOTION_BADNESS; | |
4225 | case TYPE_CODE_COMPLEX: | |
4226 | return EXACT_MATCH_BADNESS; | |
4227 | default: | |
4228 | return INCOMPATIBLE_TYPE_BADNESS; | |
4229 | } | |
4230 | } | |
4231 | ||
595f96a9 SM |
4232 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_STRUCT. */ |
4233 | ||
4234 | static struct rank | |
4235 | rank_one_type_parm_struct (struct type *parm, struct type *arg, struct value *value) | |
4236 | { | |
4237 | struct rank rank = {0, 0}; | |
4238 | ||
4239 | switch (TYPE_CODE (arg)) | |
4240 | { | |
4241 | case TYPE_CODE_STRUCT: | |
4242 | /* Check for derivation */ | |
4243 | rank.subrank = distance_to_ancestor (parm, arg, 0); | |
4244 | if (rank.subrank >= 0) | |
4245 | return sum_ranks (BASE_CONVERSION_BADNESS, rank); | |
4246 | /* fall through */ | |
4247 | default: | |
4248 | return INCOMPATIBLE_TYPE_BADNESS; | |
4249 | } | |
4250 | } | |
4251 | ||
f09ce22d SM |
4252 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_SET. */ |
4253 | ||
4254 | static struct rank | |
4255 | rank_one_type_parm_set (struct type *parm, struct type *arg, struct value *value) | |
4256 | { | |
4257 | switch (TYPE_CODE (arg)) | |
4258 | { | |
4259 | /* Not in C++ */ | |
4260 | case TYPE_CODE_SET: | |
4261 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), | |
4262 | TYPE_FIELD_TYPE (arg, 0), NULL); | |
4263 | default: | |
4264 | return INCOMPATIBLE_TYPE_BADNESS; | |
4265 | } | |
4266 | } | |
4267 | ||
c906108c SS |
4268 | /* Compare one type (PARM) for compatibility with another (ARG). |
4269 | * PARM is intended to be the parameter type of a function; and | |
4270 | * ARG is the supplied argument's type. This function tests if | |
4271 | * the latter can be converted to the former. | |
da096638 | 4272 | * VALUE is the argument's value or NULL if none (or called recursively) |
c906108c SS |
4273 | * |
4274 | * Return 0 if they are identical types; | |
4275 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 MS |
4276 | * PARM is to ARG. The higher the return value, the worse the match. |
4277 | * Generally the "bad" conversions are all uniformly assigned a 100. */ | |
c906108c | 4278 | |
6403aeea | 4279 | struct rank |
da096638 | 4280 | rank_one_type (struct type *parm, struct type *arg, struct value *value) |
c906108c | 4281 | { |
a9d5ef47 | 4282 | struct rank rank = {0,0}; |
7062b0a0 | 4283 | |
c906108c SS |
4284 | /* Resolve typedefs */ |
4285 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
4286 | parm = check_typedef (parm); | |
4287 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
4288 | arg = check_typedef (arg); | |
4289 | ||
e15c3eb4 | 4290 | if (TYPE_IS_REFERENCE (parm) && value != NULL) |
15c0a2a9 | 4291 | { |
e15c3eb4 KS |
4292 | if (VALUE_LVAL (value) == not_lval) |
4293 | { | |
4294 | /* Rvalues should preferably bind to rvalue references or const | |
4295 | lvalue references. */ | |
4296 | if (TYPE_CODE (parm) == TYPE_CODE_RVALUE_REF) | |
4297 | rank.subrank = REFERENCE_CONVERSION_RVALUE; | |
4298 | else if (TYPE_CONST (TYPE_TARGET_TYPE (parm))) | |
4299 | rank.subrank = REFERENCE_CONVERSION_CONST_LVALUE; | |
4300 | else | |
4301 | return INCOMPATIBLE_TYPE_BADNESS; | |
4302 | return sum_ranks (rank, REFERENCE_CONVERSION_BADNESS); | |
4303 | } | |
4304 | else | |
4305 | { | |
330f1d38 | 4306 | /* It's illegal to pass an lvalue as an rvalue. */ |
e15c3eb4 | 4307 | if (TYPE_CODE (parm) == TYPE_CODE_RVALUE_REF) |
330f1d38 | 4308 | return INCOMPATIBLE_TYPE_BADNESS; |
e15c3eb4 | 4309 | } |
15c0a2a9 AV |
4310 | } |
4311 | ||
4312 | if (types_equal (parm, arg)) | |
15c0a2a9 | 4313 | { |
e15c3eb4 KS |
4314 | struct type *t1 = parm; |
4315 | struct type *t2 = arg; | |
15c0a2a9 | 4316 | |
e15c3eb4 KS |
4317 | /* For pointers and references, compare target type. */ |
4318 | if (TYPE_CODE (parm) == TYPE_CODE_PTR || TYPE_IS_REFERENCE (parm)) | |
4319 | { | |
4320 | t1 = TYPE_TARGET_TYPE (parm); | |
4321 | t2 = TYPE_TARGET_TYPE (arg); | |
4322 | } | |
15c0a2a9 | 4323 | |
e15c3eb4 KS |
4324 | /* Make sure they are CV equal, too. */ |
4325 | if (TYPE_CONST (t1) != TYPE_CONST (t2)) | |
4326 | rank.subrank |= CV_CONVERSION_CONST; | |
4327 | if (TYPE_VOLATILE (t1) != TYPE_VOLATILE (t2)) | |
4328 | rank.subrank |= CV_CONVERSION_VOLATILE; | |
4329 | if (rank.subrank != 0) | |
4330 | return sum_ranks (CV_CONVERSION_BADNESS, rank); | |
4331 | return EXACT_MATCH_BADNESS; | |
15c0a2a9 AV |
4332 | } |
4333 | ||
db577aea | 4334 | /* See through references, since we can almost make non-references |
7ba81444 | 4335 | references. */ |
aa006118 AV |
4336 | |
4337 | if (TYPE_IS_REFERENCE (arg)) | |
da096638 | 4338 | return (sum_ranks (rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL), |
06acc08f | 4339 | REFERENCE_SEE_THROUGH_BADNESS)); |
aa006118 | 4340 | if (TYPE_IS_REFERENCE (parm)) |
da096638 | 4341 | return (sum_ranks (rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL), |
06acc08f | 4342 | REFERENCE_SEE_THROUGH_BADNESS)); |
5d161b24 | 4343 | if (overload_debug) |
7ba81444 MS |
4344 | /* Debugging only. */ |
4345 | fprintf_filtered (gdb_stderr, | |
4346 | "------ Arg is %s [%d], parm is %s [%d]\n", | |
4347 | TYPE_NAME (arg), TYPE_CODE (arg), | |
4348 | TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c | 4349 | |
0963b4bd | 4350 | /* x -> y means arg of type x being supplied for parameter of type y. */ |
c906108c SS |
4351 | |
4352 | switch (TYPE_CODE (parm)) | |
4353 | { | |
c5aa993b | 4354 | case TYPE_CODE_PTR: |
9293fc63 | 4355 | return rank_one_type_parm_ptr (parm, arg, value); |
c5aa993b | 4356 | case TYPE_CODE_ARRAY: |
b9f4512f | 4357 | return rank_one_type_parm_array (parm, arg, value); |
c5aa993b | 4358 | case TYPE_CODE_FUNC: |
f1f832d6 | 4359 | return rank_one_type_parm_func (parm, arg, value); |
c5aa993b | 4360 | case TYPE_CODE_INT: |
34910087 | 4361 | return rank_one_type_parm_int (parm, arg, value); |
c5aa993b | 4362 | case TYPE_CODE_ENUM: |
793cd1d2 | 4363 | return rank_one_type_parm_enum (parm, arg, value); |
c5aa993b | 4364 | case TYPE_CODE_CHAR: |
41ea4728 | 4365 | return rank_one_type_parm_char (parm, arg, value); |
c5aa993b | 4366 | case TYPE_CODE_RANGE: |
0dd322dc | 4367 | return rank_one_type_parm_range (parm, arg, value); |
c5aa993b | 4368 | case TYPE_CODE_BOOL: |
2c509035 | 4369 | return rank_one_type_parm_bool (parm, arg, value); |
c5aa993b | 4370 | case TYPE_CODE_FLT: |
7f17b20d | 4371 | return rank_one_type_parm_float (parm, arg, value); |
c5aa993b | 4372 | case TYPE_CODE_COMPLEX: |
2598a94b | 4373 | return rank_one_type_parm_complex (parm, arg, value); |
c5aa993b | 4374 | case TYPE_CODE_STRUCT: |
595f96a9 | 4375 | return rank_one_type_parm_struct (parm, arg, value); |
c5aa993b | 4376 | case TYPE_CODE_SET: |
f09ce22d | 4377 | return rank_one_type_parm_set (parm, arg, value); |
c5aa993b JM |
4378 | default: |
4379 | return INCOMPATIBLE_TYPE_BADNESS; | |
4380 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
4381 | } |
4382 | ||
0963b4bd | 4383 | /* End of functions for overload resolution. */ |
5212577a DE |
4384 | \f |
4385 | /* Routines to pretty-print types. */ | |
c906108c | 4386 | |
c906108c | 4387 | static void |
fba45db2 | 4388 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
4389 | { |
4390 | int bitno; | |
4391 | ||
4392 | for (bitno = 0; bitno < nbits; bitno++) | |
4393 | { | |
4394 | if ((bitno % 8) == 0) | |
4395 | { | |
4396 | puts_filtered (" "); | |
4397 | } | |
4398 | if (B_TST (bits, bitno)) | |
a3f17187 | 4399 | printf_filtered (("1")); |
c906108c | 4400 | else |
a3f17187 | 4401 | printf_filtered (("0")); |
c906108c SS |
4402 | } |
4403 | } | |
4404 | ||
ad2f7632 | 4405 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
4406 | include it since we may get into a infinitely recursive |
4407 | situation. */ | |
c906108c SS |
4408 | |
4409 | static void | |
4c9e8482 | 4410 | print_args (struct field *args, int nargs, int spaces) |
c906108c SS |
4411 | { |
4412 | if (args != NULL) | |
4413 | { | |
ad2f7632 DJ |
4414 | int i; |
4415 | ||
4416 | for (i = 0; i < nargs; i++) | |
4c9e8482 DE |
4417 | { |
4418 | printfi_filtered (spaces, "[%d] name '%s'\n", i, | |
4419 | args[i].name != NULL ? args[i].name : "<NULL>"); | |
4420 | recursive_dump_type (args[i].type, spaces + 2); | |
4421 | } | |
c906108c SS |
4422 | } |
4423 | } | |
4424 | ||
d6a843b5 JK |
4425 | int |
4426 | field_is_static (struct field *f) | |
4427 | { | |
4428 | /* "static" fields are the fields whose location is not relative | |
4429 | to the address of the enclosing struct. It would be nice to | |
4430 | have a dedicated flag that would be set for static fields when | |
4431 | the type is being created. But in practice, checking the field | |
254e6b9e | 4432 | loc_kind should give us an accurate answer. */ |
d6a843b5 JK |
4433 | return (FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSNAME |
4434 | || FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSADDR); | |
4435 | } | |
4436 | ||
c906108c | 4437 | static void |
fba45db2 | 4438 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
4439 | { |
4440 | int method_idx; | |
4441 | int overload_idx; | |
4442 | struct fn_field *f; | |
4443 | ||
4444 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 4445 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
4446 | printf_filtered ("\n"); |
4447 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
4448 | { | |
4449 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
4450 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
4451 | method_idx, | |
4452 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
4453 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
4454 | gdb_stdout); | |
a3f17187 | 4455 | printf_filtered (_(") length %d\n"), |
c906108c SS |
4456 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
4457 | for (overload_idx = 0; | |
4458 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
4459 | overload_idx++) | |
4460 | { | |
4461 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
4462 | overload_idx, | |
4463 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
4464 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
4465 | gdb_stdout); | |
c906108c SS |
4466 | printf_filtered (")\n"); |
4467 | printfi_filtered (spaces + 8, "type "); | |
7ba81444 MS |
4468 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
4469 | gdb_stdout); | |
c906108c SS |
4470 | printf_filtered ("\n"); |
4471 | ||
4472 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
4473 | spaces + 8 + 2); | |
4474 | ||
4475 | printfi_filtered (spaces + 8, "args "); | |
7ba81444 MS |
4476 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
4477 | gdb_stdout); | |
c906108c | 4478 | printf_filtered ("\n"); |
4c9e8482 DE |
4479 | print_args (TYPE_FN_FIELD_ARGS (f, overload_idx), |
4480 | TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, overload_idx)), | |
4481 | spaces + 8 + 2); | |
c906108c | 4482 | printfi_filtered (spaces + 8, "fcontext "); |
d4f3574e SS |
4483 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
4484 | gdb_stdout); | |
c906108c SS |
4485 | printf_filtered ("\n"); |
4486 | ||
4487 | printfi_filtered (spaces + 8, "is_const %d\n", | |
4488 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
4489 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
4490 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
4491 | printfi_filtered (spaces + 8, "is_private %d\n", | |
4492 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
4493 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
4494 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
4495 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
4496 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
4497 | printfi_filtered (spaces + 8, "voffset %u\n", | |
4498 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
4499 | } | |
4500 | } | |
4501 | } | |
4502 | ||
4503 | static void | |
fba45db2 | 4504 | print_cplus_stuff (struct type *type, int spaces) |
c906108c | 4505 | { |
ae6ae975 DE |
4506 | printfi_filtered (spaces, "vptr_fieldno %d\n", TYPE_VPTR_FIELDNO (type)); |
4507 | printfi_filtered (spaces, "vptr_basetype "); | |
4508 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); | |
4509 | puts_filtered ("\n"); | |
4510 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
4511 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
4512 | ||
c906108c SS |
4513 | printfi_filtered (spaces, "n_baseclasses %d\n", |
4514 | TYPE_N_BASECLASSES (type)); | |
4515 | printfi_filtered (spaces, "nfn_fields %d\n", | |
4516 | TYPE_NFN_FIELDS (type)); | |
c906108c SS |
4517 | if (TYPE_N_BASECLASSES (type) > 0) |
4518 | { | |
4519 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
4520 | TYPE_N_BASECLASSES (type)); | |
7ba81444 MS |
4521 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
4522 | gdb_stdout); | |
c906108c SS |
4523 | printf_filtered (")"); |
4524 | ||
4525 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
4526 | TYPE_N_BASECLASSES (type)); | |
4527 | puts_filtered ("\n"); | |
4528 | } | |
4529 | if (TYPE_NFIELDS (type) > 0) | |
4530 | { | |
4531 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
4532 | { | |
7ba81444 MS |
4533 | printfi_filtered (spaces, |
4534 | "private_field_bits (%d bits at *", | |
c906108c | 4535 | TYPE_NFIELDS (type)); |
7ba81444 MS |
4536 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
4537 | gdb_stdout); | |
c906108c SS |
4538 | printf_filtered (")"); |
4539 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
4540 | TYPE_NFIELDS (type)); | |
4541 | puts_filtered ("\n"); | |
4542 | } | |
4543 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
4544 | { | |
7ba81444 MS |
4545 | printfi_filtered (spaces, |
4546 | "protected_field_bits (%d bits at *", | |
c906108c | 4547 | TYPE_NFIELDS (type)); |
7ba81444 MS |
4548 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
4549 | gdb_stdout); | |
c906108c SS |
4550 | printf_filtered (")"); |
4551 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
4552 | TYPE_NFIELDS (type)); | |
4553 | puts_filtered ("\n"); | |
4554 | } | |
4555 | } | |
4556 | if (TYPE_NFN_FIELDS (type) > 0) | |
4557 | { | |
4558 | dump_fn_fieldlists (type, spaces); | |
4559 | } | |
4560 | } | |
4561 | ||
b4ba55a1 JB |
4562 | /* Print the contents of the TYPE's type_specific union, assuming that |
4563 | its type-specific kind is TYPE_SPECIFIC_GNAT_STUFF. */ | |
4564 | ||
4565 | static void | |
4566 | print_gnat_stuff (struct type *type, int spaces) | |
4567 | { | |
4568 | struct type *descriptive_type = TYPE_DESCRIPTIVE_TYPE (type); | |
4569 | ||
8cd00c59 PMR |
4570 | if (descriptive_type == NULL) |
4571 | printfi_filtered (spaces + 2, "no descriptive type\n"); | |
4572 | else | |
4573 | { | |
4574 | printfi_filtered (spaces + 2, "descriptive type\n"); | |
4575 | recursive_dump_type (descriptive_type, spaces + 4); | |
4576 | } | |
b4ba55a1 JB |
4577 | } |
4578 | ||
c906108c SS |
4579 | static struct obstack dont_print_type_obstack; |
4580 | ||
4581 | void | |
fba45db2 | 4582 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
4583 | { |
4584 | int idx; | |
4585 | ||
4586 | if (spaces == 0) | |
4587 | obstack_begin (&dont_print_type_obstack, 0); | |
4588 | ||
4589 | if (TYPE_NFIELDS (type) > 0 | |
b4ba55a1 | 4590 | || (HAVE_CPLUS_STRUCT (type) && TYPE_NFN_FIELDS (type) > 0)) |
c906108c SS |
4591 | { |
4592 | struct type **first_dont_print | |
7ba81444 | 4593 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 4594 | |
7ba81444 MS |
4595 | int i = (struct type **) |
4596 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
4597 | |
4598 | while (--i >= 0) | |
4599 | { | |
4600 | if (type == first_dont_print[i]) | |
4601 | { | |
4602 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 4603 | gdb_print_host_address (type, gdb_stdout); |
a3f17187 | 4604 | printf_filtered (_(" <same as already seen type>\n")); |
c906108c SS |
4605 | return; |
4606 | } | |
4607 | } | |
4608 | ||
4609 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
4610 | } | |
4611 | ||
4612 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 4613 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
4614 | printf_filtered ("\n"); |
4615 | printfi_filtered (spaces, "name '%s' (", | |
4616 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 4617 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c | 4618 | printf_filtered (")\n"); |
c906108c SS |
4619 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
4620 | switch (TYPE_CODE (type)) | |
4621 | { | |
c5aa993b JM |
4622 | case TYPE_CODE_UNDEF: |
4623 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
4624 | break; | |
4625 | case TYPE_CODE_PTR: | |
4626 | printf_filtered ("(TYPE_CODE_PTR)"); | |
4627 | break; | |
4628 | case TYPE_CODE_ARRAY: | |
4629 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
4630 | break; | |
4631 | case TYPE_CODE_STRUCT: | |
4632 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
4633 | break; | |
4634 | case TYPE_CODE_UNION: | |
4635 | printf_filtered ("(TYPE_CODE_UNION)"); | |
4636 | break; | |
4637 | case TYPE_CODE_ENUM: | |
4638 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
4639 | break; | |
4f2aea11 MK |
4640 | case TYPE_CODE_FLAGS: |
4641 | printf_filtered ("(TYPE_CODE_FLAGS)"); | |
4642 | break; | |
c5aa993b JM |
4643 | case TYPE_CODE_FUNC: |
4644 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
4645 | break; | |
4646 | case TYPE_CODE_INT: | |
4647 | printf_filtered ("(TYPE_CODE_INT)"); | |
4648 | break; | |
4649 | case TYPE_CODE_FLT: | |
4650 | printf_filtered ("(TYPE_CODE_FLT)"); | |
4651 | break; | |
4652 | case TYPE_CODE_VOID: | |
4653 | printf_filtered ("(TYPE_CODE_VOID)"); | |
4654 | break; | |
4655 | case TYPE_CODE_SET: | |
4656 | printf_filtered ("(TYPE_CODE_SET)"); | |
4657 | break; | |
4658 | case TYPE_CODE_RANGE: | |
4659 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
4660 | break; | |
4661 | case TYPE_CODE_STRING: | |
4662 | printf_filtered ("(TYPE_CODE_STRING)"); | |
4663 | break; | |
4664 | case TYPE_CODE_ERROR: | |
4665 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
4666 | break; | |
0d5de010 DJ |
4667 | case TYPE_CODE_MEMBERPTR: |
4668 | printf_filtered ("(TYPE_CODE_MEMBERPTR)"); | |
4669 | break; | |
4670 | case TYPE_CODE_METHODPTR: | |
4671 | printf_filtered ("(TYPE_CODE_METHODPTR)"); | |
c5aa993b JM |
4672 | break; |
4673 | case TYPE_CODE_METHOD: | |
4674 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
4675 | break; | |
4676 | case TYPE_CODE_REF: | |
4677 | printf_filtered ("(TYPE_CODE_REF)"); | |
4678 | break; | |
4679 | case TYPE_CODE_CHAR: | |
4680 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
4681 | break; | |
4682 | case TYPE_CODE_BOOL: | |
4683 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
4684 | break; | |
e9e79dd9 FF |
4685 | case TYPE_CODE_COMPLEX: |
4686 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
4687 | break; | |
c5aa993b JM |
4688 | case TYPE_CODE_TYPEDEF: |
4689 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
4690 | break; | |
5c4e30ca DC |
4691 | case TYPE_CODE_NAMESPACE: |
4692 | printf_filtered ("(TYPE_CODE_NAMESPACE)"); | |
4693 | break; | |
c5aa993b JM |
4694 | default: |
4695 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
4696 | break; | |
c906108c SS |
4697 | } |
4698 | puts_filtered ("\n"); | |
cc1defb1 | 4699 | printfi_filtered (spaces, "length %s\n", pulongest (TYPE_LENGTH (type))); |
e9bb382b UW |
4700 | if (TYPE_OBJFILE_OWNED (type)) |
4701 | { | |
4702 | printfi_filtered (spaces, "objfile "); | |
4703 | gdb_print_host_address (TYPE_OWNER (type).objfile, gdb_stdout); | |
4704 | } | |
4705 | else | |
4706 | { | |
4707 | printfi_filtered (spaces, "gdbarch "); | |
4708 | gdb_print_host_address (TYPE_OWNER (type).gdbarch, gdb_stdout); | |
4709 | } | |
c906108c SS |
4710 | printf_filtered ("\n"); |
4711 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 4712 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
4713 | printf_filtered ("\n"); |
4714 | if (TYPE_TARGET_TYPE (type) != NULL) | |
4715 | { | |
4716 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
4717 | } | |
4718 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 4719 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
4720 | printf_filtered ("\n"); |
4721 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 4722 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 4723 | printf_filtered ("\n"); |
2fdde8f8 DJ |
4724 | printfi_filtered (spaces, "type_chain "); |
4725 | gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); | |
e9e79dd9 | 4726 | printf_filtered ("\n"); |
7ba81444 MS |
4727 | printfi_filtered (spaces, "instance_flags 0x%x", |
4728 | TYPE_INSTANCE_FLAGS (type)); | |
2fdde8f8 DJ |
4729 | if (TYPE_CONST (type)) |
4730 | { | |
a9ff5f12 | 4731 | puts_filtered (" TYPE_CONST"); |
2fdde8f8 DJ |
4732 | } |
4733 | if (TYPE_VOLATILE (type)) | |
4734 | { | |
a9ff5f12 | 4735 | puts_filtered (" TYPE_VOLATILE"); |
2fdde8f8 DJ |
4736 | } |
4737 | if (TYPE_CODE_SPACE (type)) | |
4738 | { | |
a9ff5f12 | 4739 | puts_filtered (" TYPE_CODE_SPACE"); |
2fdde8f8 DJ |
4740 | } |
4741 | if (TYPE_DATA_SPACE (type)) | |
4742 | { | |
a9ff5f12 | 4743 | puts_filtered (" TYPE_DATA_SPACE"); |
2fdde8f8 | 4744 | } |
8b2dbe47 KB |
4745 | if (TYPE_ADDRESS_CLASS_1 (type)) |
4746 | { | |
a9ff5f12 | 4747 | puts_filtered (" TYPE_ADDRESS_CLASS_1"); |
8b2dbe47 KB |
4748 | } |
4749 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
4750 | { | |
a9ff5f12 | 4751 | puts_filtered (" TYPE_ADDRESS_CLASS_2"); |
8b2dbe47 | 4752 | } |
06d66ee9 TT |
4753 | if (TYPE_RESTRICT (type)) |
4754 | { | |
a9ff5f12 | 4755 | puts_filtered (" TYPE_RESTRICT"); |
06d66ee9 | 4756 | } |
a2c2acaf MW |
4757 | if (TYPE_ATOMIC (type)) |
4758 | { | |
a9ff5f12 | 4759 | puts_filtered (" TYPE_ATOMIC"); |
a2c2acaf | 4760 | } |
2fdde8f8 | 4761 | puts_filtered ("\n"); |
876cecd0 TT |
4762 | |
4763 | printfi_filtered (spaces, "flags"); | |
762a036f | 4764 | if (TYPE_UNSIGNED (type)) |
c906108c | 4765 | { |
a9ff5f12 | 4766 | puts_filtered (" TYPE_UNSIGNED"); |
c906108c | 4767 | } |
762a036f FF |
4768 | if (TYPE_NOSIGN (type)) |
4769 | { | |
a9ff5f12 | 4770 | puts_filtered (" TYPE_NOSIGN"); |
762a036f | 4771 | } |
34877895 PJ |
4772 | if (TYPE_ENDIANITY_NOT_DEFAULT (type)) |
4773 | { | |
4774 | puts_filtered (" TYPE_ENDIANITY_NOT_DEFAULT"); | |
4775 | } | |
762a036f | 4776 | if (TYPE_STUB (type)) |
c906108c | 4777 | { |
a9ff5f12 | 4778 | puts_filtered (" TYPE_STUB"); |
c906108c | 4779 | } |
762a036f FF |
4780 | if (TYPE_TARGET_STUB (type)) |
4781 | { | |
a9ff5f12 | 4782 | puts_filtered (" TYPE_TARGET_STUB"); |
762a036f | 4783 | } |
762a036f FF |
4784 | if (TYPE_PROTOTYPED (type)) |
4785 | { | |
a9ff5f12 | 4786 | puts_filtered (" TYPE_PROTOTYPED"); |
762a036f FF |
4787 | } |
4788 | if (TYPE_INCOMPLETE (type)) | |
4789 | { | |
a9ff5f12 | 4790 | puts_filtered (" TYPE_INCOMPLETE"); |
762a036f | 4791 | } |
762a036f FF |
4792 | if (TYPE_VARARGS (type)) |
4793 | { | |
a9ff5f12 | 4794 | puts_filtered (" TYPE_VARARGS"); |
762a036f | 4795 | } |
f5f8a009 EZ |
4796 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
4797 | an attribute for the array type, which tells whether or not we | |
4798 | have a vector, instead of a regular array. */ | |
4799 | if (TYPE_VECTOR (type)) | |
4800 | { | |
a9ff5f12 | 4801 | puts_filtered (" TYPE_VECTOR"); |
f5f8a009 | 4802 | } |
876cecd0 TT |
4803 | if (TYPE_FIXED_INSTANCE (type)) |
4804 | { | |
4805 | puts_filtered (" TYPE_FIXED_INSTANCE"); | |
4806 | } | |
4807 | if (TYPE_STUB_SUPPORTED (type)) | |
4808 | { | |
4809 | puts_filtered (" TYPE_STUB_SUPPORTED"); | |
4810 | } | |
4811 | if (TYPE_NOTTEXT (type)) | |
4812 | { | |
4813 | puts_filtered (" TYPE_NOTTEXT"); | |
4814 | } | |
c906108c SS |
4815 | puts_filtered ("\n"); |
4816 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 4817 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
4818 | puts_filtered ("\n"); |
4819 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
4820 | { | |
14e75d8e JK |
4821 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) |
4822 | printfi_filtered (spaces + 2, | |
4823 | "[%d] enumval %s type ", | |
4824 | idx, plongest (TYPE_FIELD_ENUMVAL (type, idx))); | |
4825 | else | |
4826 | printfi_filtered (spaces + 2, | |
6b850546 DT |
4827 | "[%d] bitpos %s bitsize %d type ", |
4828 | idx, plongest (TYPE_FIELD_BITPOS (type, idx)), | |
14e75d8e | 4829 | TYPE_FIELD_BITSIZE (type, idx)); |
d4f3574e | 4830 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
4831 | printf_filtered (" name '%s' (", |
4832 | TYPE_FIELD_NAME (type, idx) != NULL | |
4833 | ? TYPE_FIELD_NAME (type, idx) | |
4834 | : "<NULL>"); | |
d4f3574e | 4835 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
4836 | printf_filtered (")\n"); |
4837 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
4838 | { | |
4839 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
4840 | } | |
4841 | } | |
43bbcdc2 PH |
4842 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
4843 | { | |
4844 | printfi_filtered (spaces, "low %s%s high %s%s\n", | |
4845 | plongest (TYPE_LOW_BOUND (type)), | |
4846 | TYPE_LOW_BOUND_UNDEFINED (type) ? " (undefined)" : "", | |
4847 | plongest (TYPE_HIGH_BOUND (type)), | |
3e43a32a MS |
4848 | TYPE_HIGH_BOUND_UNDEFINED (type) |
4849 | ? " (undefined)" : ""); | |
43bbcdc2 | 4850 | } |
c906108c | 4851 | |
b4ba55a1 JB |
4852 | switch (TYPE_SPECIFIC_FIELD (type)) |
4853 | { | |
4854 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
4855 | printfi_filtered (spaces, "cplus_stuff "); | |
4856 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), | |
4857 | gdb_stdout); | |
4858 | puts_filtered ("\n"); | |
4859 | print_cplus_stuff (type, spaces); | |
4860 | break; | |
8da61cc4 | 4861 | |
b4ba55a1 JB |
4862 | case TYPE_SPECIFIC_GNAT_STUFF: |
4863 | printfi_filtered (spaces, "gnat_stuff "); | |
4864 | gdb_print_host_address (TYPE_GNAT_SPECIFIC (type), gdb_stdout); | |
4865 | puts_filtered ("\n"); | |
4866 | print_gnat_stuff (type, spaces); | |
4867 | break; | |
701c159d | 4868 | |
b4ba55a1 JB |
4869 | case TYPE_SPECIFIC_FLOATFORMAT: |
4870 | printfi_filtered (spaces, "floatformat "); | |
0db7851f UW |
4871 | if (TYPE_FLOATFORMAT (type) == NULL |
4872 | || TYPE_FLOATFORMAT (type)->name == NULL) | |
b4ba55a1 JB |
4873 | puts_filtered ("(null)"); |
4874 | else | |
0db7851f | 4875 | puts_filtered (TYPE_FLOATFORMAT (type)->name); |
b4ba55a1 JB |
4876 | puts_filtered ("\n"); |
4877 | break; | |
c906108c | 4878 | |
b6cdc2c1 | 4879 | case TYPE_SPECIFIC_FUNC: |
b4ba55a1 JB |
4880 | printfi_filtered (spaces, "calling_convention %d\n", |
4881 | TYPE_CALLING_CONVENTION (type)); | |
b6cdc2c1 | 4882 | /* tail_call_list is not printed. */ |
b4ba55a1 | 4883 | break; |
09e2d7c7 DE |
4884 | |
4885 | case TYPE_SPECIFIC_SELF_TYPE: | |
4886 | printfi_filtered (spaces, "self_type "); | |
4887 | gdb_print_host_address (TYPE_SELF_TYPE (type), gdb_stdout); | |
4888 | puts_filtered ("\n"); | |
4889 | break; | |
c906108c | 4890 | } |
b4ba55a1 | 4891 | |
c906108c SS |
4892 | if (spaces == 0) |
4893 | obstack_free (&dont_print_type_obstack, NULL); | |
4894 | } | |
5212577a | 4895 | \f |
ae5a43e0 DJ |
4896 | /* Trivial helpers for the libiberty hash table, for mapping one |
4897 | type to another. */ | |
4898 | ||
fd90ace4 | 4899 | struct type_pair : public allocate_on_obstack |
ae5a43e0 | 4900 | { |
fd90ace4 YQ |
4901 | type_pair (struct type *old_, struct type *newobj_) |
4902 | : old (old_), newobj (newobj_) | |
4903 | {} | |
4904 | ||
4905 | struct type * const old, * const newobj; | |
ae5a43e0 DJ |
4906 | }; |
4907 | ||
4908 | static hashval_t | |
4909 | type_pair_hash (const void *item) | |
4910 | { | |
9a3c8263 | 4911 | const struct type_pair *pair = (const struct type_pair *) item; |
d8734c88 | 4912 | |
ae5a43e0 DJ |
4913 | return htab_hash_pointer (pair->old); |
4914 | } | |
4915 | ||
4916 | static int | |
4917 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
4918 | { | |
9a3c8263 SM |
4919 | const struct type_pair *lhs = (const struct type_pair *) item_lhs; |
4920 | const struct type_pair *rhs = (const struct type_pair *) item_rhs; | |
d8734c88 | 4921 | |
ae5a43e0 DJ |
4922 | return lhs->old == rhs->old; |
4923 | } | |
4924 | ||
4925 | /* Allocate the hash table used by copy_type_recursive to walk | |
4926 | types without duplicates. We use OBJFILE's obstack, because | |
4927 | OBJFILE is about to be deleted. */ | |
4928 | ||
4929 | htab_t | |
4930 | create_copied_types_hash (struct objfile *objfile) | |
4931 | { | |
4932 | return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, | |
4933 | NULL, &objfile->objfile_obstack, | |
4934 | hashtab_obstack_allocate, | |
4935 | dummy_obstack_deallocate); | |
4936 | } | |
4937 | ||
d9823cbb KB |
4938 | /* Recursively copy (deep copy) a dynamic attribute list of a type. */ |
4939 | ||
4940 | static struct dynamic_prop_list * | |
4941 | copy_dynamic_prop_list (struct obstack *objfile_obstack, | |
4942 | struct dynamic_prop_list *list) | |
4943 | { | |
4944 | struct dynamic_prop_list *copy = list; | |
4945 | struct dynamic_prop_list **node_ptr = © | |
4946 | ||
4947 | while (*node_ptr != NULL) | |
4948 | { | |
4949 | struct dynamic_prop_list *node_copy; | |
4950 | ||
224c3ddb SM |
4951 | node_copy = ((struct dynamic_prop_list *) |
4952 | obstack_copy (objfile_obstack, *node_ptr, | |
4953 | sizeof (struct dynamic_prop_list))); | |
283a9958 | 4954 | node_copy->prop = (*node_ptr)->prop; |
d9823cbb KB |
4955 | *node_ptr = node_copy; |
4956 | ||
4957 | node_ptr = &node_copy->next; | |
4958 | } | |
4959 | ||
4960 | return copy; | |
4961 | } | |
4962 | ||
7ba81444 | 4963 | /* Recursively copy (deep copy) TYPE, if it is associated with |
eed8b28a PP |
4964 | OBJFILE. Return a new type owned by the gdbarch associated with the type, a |
4965 | saved type if we have already visited TYPE (using COPIED_TYPES), or TYPE if | |
4966 | it is not associated with OBJFILE. */ | |
ae5a43e0 DJ |
4967 | |
4968 | struct type * | |
7ba81444 MS |
4969 | copy_type_recursive (struct objfile *objfile, |
4970 | struct type *type, | |
ae5a43e0 DJ |
4971 | htab_t copied_types) |
4972 | { | |
ae5a43e0 DJ |
4973 | void **slot; |
4974 | struct type *new_type; | |
4975 | ||
e9bb382b | 4976 | if (! TYPE_OBJFILE_OWNED (type)) |
ae5a43e0 DJ |
4977 | return type; |
4978 | ||
7ba81444 MS |
4979 | /* This type shouldn't be pointing to any types in other objfiles; |
4980 | if it did, the type might disappear unexpectedly. */ | |
ae5a43e0 DJ |
4981 | gdb_assert (TYPE_OBJFILE (type) == objfile); |
4982 | ||
fd90ace4 YQ |
4983 | struct type_pair pair (type, nullptr); |
4984 | ||
ae5a43e0 DJ |
4985 | slot = htab_find_slot (copied_types, &pair, INSERT); |
4986 | if (*slot != NULL) | |
fe978cb0 | 4987 | return ((struct type_pair *) *slot)->newobj; |
ae5a43e0 | 4988 | |
e9bb382b | 4989 | new_type = alloc_type_arch (get_type_arch (type)); |
ae5a43e0 DJ |
4990 | |
4991 | /* We must add the new type to the hash table immediately, in case | |
4992 | we encounter this type again during a recursive call below. */ | |
fd90ace4 YQ |
4993 | struct type_pair *stored |
4994 | = new (&objfile->objfile_obstack) struct type_pair (type, new_type); | |
4995 | ||
ae5a43e0 DJ |
4996 | *slot = stored; |
4997 | ||
876cecd0 TT |
4998 | /* Copy the common fields of types. For the main type, we simply |
4999 | copy the entire thing and then update specific fields as needed. */ | |
5000 | *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type); | |
e9bb382b UW |
5001 | TYPE_OBJFILE_OWNED (new_type) = 0; |
5002 | TYPE_OWNER (new_type).gdbarch = get_type_arch (type); | |
876cecd0 | 5003 | |
ae5a43e0 DJ |
5004 | if (TYPE_NAME (type)) |
5005 | TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type)); | |
ae5a43e0 DJ |
5006 | |
5007 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); | |
5008 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
5009 | ||
5010 | /* Copy the fields. */ | |
ae5a43e0 DJ |
5011 | if (TYPE_NFIELDS (type)) |
5012 | { | |
5013 | int i, nfields; | |
5014 | ||
5015 | nfields = TYPE_NFIELDS (type); | |
2fabdf33 AB |
5016 | TYPE_FIELDS (new_type) = (struct field *) |
5017 | TYPE_ZALLOC (new_type, nfields * sizeof (struct field)); | |
ae5a43e0 DJ |
5018 | for (i = 0; i < nfields; i++) |
5019 | { | |
7ba81444 MS |
5020 | TYPE_FIELD_ARTIFICIAL (new_type, i) = |
5021 | TYPE_FIELD_ARTIFICIAL (type, i); | |
ae5a43e0 DJ |
5022 | TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
5023 | if (TYPE_FIELD_TYPE (type, i)) | |
5024 | TYPE_FIELD_TYPE (new_type, i) | |
5025 | = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i), | |
5026 | copied_types); | |
5027 | if (TYPE_FIELD_NAME (type, i)) | |
7ba81444 MS |
5028 | TYPE_FIELD_NAME (new_type, i) = |
5029 | xstrdup (TYPE_FIELD_NAME (type, i)); | |
d6a843b5 | 5030 | switch (TYPE_FIELD_LOC_KIND (type, i)) |
ae5a43e0 | 5031 | { |
d6a843b5 JK |
5032 | case FIELD_LOC_KIND_BITPOS: |
5033 | SET_FIELD_BITPOS (TYPE_FIELD (new_type, i), | |
5034 | TYPE_FIELD_BITPOS (type, i)); | |
5035 | break; | |
14e75d8e JK |
5036 | case FIELD_LOC_KIND_ENUMVAL: |
5037 | SET_FIELD_ENUMVAL (TYPE_FIELD (new_type, i), | |
5038 | TYPE_FIELD_ENUMVAL (type, i)); | |
5039 | break; | |
d6a843b5 JK |
5040 | case FIELD_LOC_KIND_PHYSADDR: |
5041 | SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i), | |
5042 | TYPE_FIELD_STATIC_PHYSADDR (type, i)); | |
5043 | break; | |
5044 | case FIELD_LOC_KIND_PHYSNAME: | |
5045 | SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i), | |
5046 | xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, | |
5047 | i))); | |
5048 | break; | |
5049 | default: | |
5050 | internal_error (__FILE__, __LINE__, | |
5051 | _("Unexpected type field location kind: %d"), | |
5052 | TYPE_FIELD_LOC_KIND (type, i)); | |
ae5a43e0 DJ |
5053 | } |
5054 | } | |
5055 | } | |
5056 | ||
0963b4bd | 5057 | /* For range types, copy the bounds information. */ |
43bbcdc2 PH |
5058 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
5059 | { | |
2fabdf33 AB |
5060 | TYPE_RANGE_DATA (new_type) = (struct range_bounds *) |
5061 | TYPE_ALLOC (new_type, sizeof (struct range_bounds)); | |
43bbcdc2 PH |
5062 | *TYPE_RANGE_DATA (new_type) = *TYPE_RANGE_DATA (type); |
5063 | } | |
5064 | ||
d9823cbb KB |
5065 | if (TYPE_DYN_PROP_LIST (type) != NULL) |
5066 | TYPE_DYN_PROP_LIST (new_type) | |
5067 | = copy_dynamic_prop_list (&objfile->objfile_obstack, | |
5068 | TYPE_DYN_PROP_LIST (type)); | |
5069 | ||
3cdcd0ce | 5070 | |
ae5a43e0 DJ |
5071 | /* Copy pointers to other types. */ |
5072 | if (TYPE_TARGET_TYPE (type)) | |
7ba81444 MS |
5073 | TYPE_TARGET_TYPE (new_type) = |
5074 | copy_type_recursive (objfile, | |
5075 | TYPE_TARGET_TYPE (type), | |
5076 | copied_types); | |
f6b3afbf | 5077 | |
ae5a43e0 DJ |
5078 | /* Maybe copy the type_specific bits. |
5079 | ||
5080 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
5081 | base classes and methods. There's no fundamental reason why we | |
5082 | can't, but at the moment it is not needed. */ | |
5083 | ||
f6b3afbf DE |
5084 | switch (TYPE_SPECIFIC_FIELD (type)) |
5085 | { | |
5086 | case TYPE_SPECIFIC_NONE: | |
5087 | break; | |
5088 | case TYPE_SPECIFIC_FUNC: | |
5089 | INIT_FUNC_SPECIFIC (new_type); | |
5090 | TYPE_CALLING_CONVENTION (new_type) = TYPE_CALLING_CONVENTION (type); | |
5091 | TYPE_NO_RETURN (new_type) = TYPE_NO_RETURN (type); | |
5092 | TYPE_TAIL_CALL_LIST (new_type) = NULL; | |
5093 | break; | |
5094 | case TYPE_SPECIFIC_FLOATFORMAT: | |
5095 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); | |
5096 | break; | |
5097 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
5098 | INIT_CPLUS_SPECIFIC (new_type); | |
5099 | break; | |
5100 | case TYPE_SPECIFIC_GNAT_STUFF: | |
5101 | INIT_GNAT_SPECIFIC (new_type); | |
5102 | break; | |
09e2d7c7 DE |
5103 | case TYPE_SPECIFIC_SELF_TYPE: |
5104 | set_type_self_type (new_type, | |
5105 | copy_type_recursive (objfile, TYPE_SELF_TYPE (type), | |
5106 | copied_types)); | |
5107 | break; | |
f6b3afbf DE |
5108 | default: |
5109 | gdb_assert_not_reached ("bad type_specific_kind"); | |
5110 | } | |
ae5a43e0 DJ |
5111 | |
5112 | return new_type; | |
5113 | } | |
5114 | ||
4af88198 JB |
5115 | /* Make a copy of the given TYPE, except that the pointer & reference |
5116 | types are not preserved. | |
5117 | ||
5118 | This function assumes that the given type has an associated objfile. | |
5119 | This objfile is used to allocate the new type. */ | |
5120 | ||
5121 | struct type * | |
5122 | copy_type (const struct type *type) | |
5123 | { | |
5124 | struct type *new_type; | |
5125 | ||
e9bb382b | 5126 | gdb_assert (TYPE_OBJFILE_OWNED (type)); |
4af88198 | 5127 | |
e9bb382b | 5128 | new_type = alloc_type_copy (type); |
4af88198 JB |
5129 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); |
5130 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
5131 | memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type), | |
5132 | sizeof (struct main_type)); | |
d9823cbb KB |
5133 | if (TYPE_DYN_PROP_LIST (type) != NULL) |
5134 | TYPE_DYN_PROP_LIST (new_type) | |
5135 | = copy_dynamic_prop_list (&TYPE_OBJFILE (type) -> objfile_obstack, | |
5136 | TYPE_DYN_PROP_LIST (type)); | |
4af88198 JB |
5137 | |
5138 | return new_type; | |
5139 | } | |
5212577a | 5140 | \f |
e9bb382b UW |
5141 | /* Helper functions to initialize architecture-specific types. */ |
5142 | ||
5143 | /* Allocate a type structure associated with GDBARCH and set its | |
5144 | CODE, LENGTH, and NAME fields. */ | |
5212577a | 5145 | |
e9bb382b UW |
5146 | struct type * |
5147 | arch_type (struct gdbarch *gdbarch, | |
77b7c781 | 5148 | enum type_code code, int bit, const char *name) |
e9bb382b UW |
5149 | { |
5150 | struct type *type; | |
5151 | ||
5152 | type = alloc_type_arch (gdbarch); | |
ae438bc5 | 5153 | set_type_code (type, code); |
77b7c781 UW |
5154 | gdb_assert ((bit % TARGET_CHAR_BIT) == 0); |
5155 | TYPE_LENGTH (type) = bit / TARGET_CHAR_BIT; | |
e9bb382b UW |
5156 | |
5157 | if (name) | |
6c214e7c | 5158 | TYPE_NAME (type) = gdbarch_obstack_strdup (gdbarch, name); |
e9bb382b UW |
5159 | |
5160 | return type; | |
5161 | } | |
5162 | ||
5163 | /* Allocate a TYPE_CODE_INT type structure associated with GDBARCH. | |
5164 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
5165 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 5166 | |
e9bb382b UW |
5167 | struct type * |
5168 | arch_integer_type (struct gdbarch *gdbarch, | |
695bfa52 | 5169 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
5170 | { |
5171 | struct type *t; | |
5172 | ||
77b7c781 | 5173 | t = arch_type (gdbarch, TYPE_CODE_INT, bit, name); |
e9bb382b UW |
5174 | if (unsigned_p) |
5175 | TYPE_UNSIGNED (t) = 1; | |
e9bb382b UW |
5176 | |
5177 | return t; | |
5178 | } | |
5179 | ||
5180 | /* Allocate a TYPE_CODE_CHAR type structure associated with GDBARCH. | |
5181 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
5182 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 5183 | |
e9bb382b UW |
5184 | struct type * |
5185 | arch_character_type (struct gdbarch *gdbarch, | |
695bfa52 | 5186 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
5187 | { |
5188 | struct type *t; | |
5189 | ||
77b7c781 | 5190 | t = arch_type (gdbarch, TYPE_CODE_CHAR, bit, name); |
e9bb382b UW |
5191 | if (unsigned_p) |
5192 | TYPE_UNSIGNED (t) = 1; | |
5193 | ||
5194 | return t; | |
5195 | } | |
5196 | ||
5197 | /* Allocate a TYPE_CODE_BOOL type structure associated with GDBARCH. | |
5198 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
5199 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 5200 | |
e9bb382b UW |
5201 | struct type * |
5202 | arch_boolean_type (struct gdbarch *gdbarch, | |
695bfa52 | 5203 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
5204 | { |
5205 | struct type *t; | |
5206 | ||
77b7c781 | 5207 | t = arch_type (gdbarch, TYPE_CODE_BOOL, bit, name); |
e9bb382b UW |
5208 | if (unsigned_p) |
5209 | TYPE_UNSIGNED (t) = 1; | |
5210 | ||
5211 | return t; | |
5212 | } | |
5213 | ||
5214 | /* Allocate a TYPE_CODE_FLT type structure associated with GDBARCH. | |
5215 | BIT is the type size in bits; if BIT equals -1, the size is | |
5216 | determined by the floatformat. NAME is the type name. Set the | |
5217 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
5212577a | 5218 | |
27067745 | 5219 | struct type * |
e9bb382b | 5220 | arch_float_type (struct gdbarch *gdbarch, |
695bfa52 TT |
5221 | int bit, const char *name, |
5222 | const struct floatformat **floatformats) | |
8da61cc4 | 5223 | { |
0db7851f | 5224 | const struct floatformat *fmt = floatformats[gdbarch_byte_order (gdbarch)]; |
8da61cc4 DJ |
5225 | struct type *t; |
5226 | ||
0db7851f | 5227 | bit = verify_floatformat (bit, fmt); |
77b7c781 | 5228 | t = arch_type (gdbarch, TYPE_CODE_FLT, bit, name); |
0db7851f | 5229 | TYPE_FLOATFORMAT (t) = fmt; |
b79497cb | 5230 | |
8da61cc4 DJ |
5231 | return t; |
5232 | } | |
5233 | ||
88dfca6c UW |
5234 | /* Allocate a TYPE_CODE_DECFLOAT type structure associated with GDBARCH. |
5235 | BIT is the type size in bits. NAME is the type name. */ | |
5236 | ||
5237 | struct type * | |
5238 | arch_decfloat_type (struct gdbarch *gdbarch, int bit, const char *name) | |
5239 | { | |
5240 | struct type *t; | |
5241 | ||
77b7c781 | 5242 | t = arch_type (gdbarch, TYPE_CODE_DECFLOAT, bit, name); |
88dfca6c UW |
5243 | return t; |
5244 | } | |
5245 | ||
e9bb382b UW |
5246 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with GDBARCH. |
5247 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
5212577a | 5248 | |
27067745 | 5249 | struct type * |
e9bb382b | 5250 | arch_complex_type (struct gdbarch *gdbarch, |
695bfa52 | 5251 | const char *name, struct type *target_type) |
27067745 UW |
5252 | { |
5253 | struct type *t; | |
d8734c88 | 5254 | |
e9bb382b | 5255 | t = arch_type (gdbarch, TYPE_CODE_COMPLEX, |
77b7c781 | 5256 | 2 * TYPE_LENGTH (target_type) * TARGET_CHAR_BIT, name); |
27067745 UW |
5257 | TYPE_TARGET_TYPE (t) = target_type; |
5258 | return t; | |
5259 | } | |
5260 | ||
88dfca6c UW |
5261 | /* Allocate a TYPE_CODE_PTR type structure associated with GDBARCH. |
5262 | BIT is the pointer type size in bits. NAME is the type name. | |
5263 | TARGET_TYPE is the pointer target type. Always sets the pointer type's | |
5264 | TYPE_UNSIGNED flag. */ | |
5265 | ||
5266 | struct type * | |
5267 | arch_pointer_type (struct gdbarch *gdbarch, | |
5268 | int bit, const char *name, struct type *target_type) | |
5269 | { | |
5270 | struct type *t; | |
5271 | ||
77b7c781 | 5272 | t = arch_type (gdbarch, TYPE_CODE_PTR, bit, name); |
88dfca6c UW |
5273 | TYPE_TARGET_TYPE (t) = target_type; |
5274 | TYPE_UNSIGNED (t) = 1; | |
5275 | return t; | |
5276 | } | |
5277 | ||
e9bb382b | 5278 | /* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH. |
77b7c781 | 5279 | NAME is the type name. BIT is the size of the flag word in bits. */ |
5212577a | 5280 | |
e9bb382b | 5281 | struct type * |
77b7c781 | 5282 | arch_flags_type (struct gdbarch *gdbarch, const char *name, int bit) |
e9bb382b | 5283 | { |
e9bb382b UW |
5284 | struct type *type; |
5285 | ||
77b7c781 | 5286 | type = arch_type (gdbarch, TYPE_CODE_FLAGS, bit, name); |
e9bb382b | 5287 | TYPE_UNSIGNED (type) = 1; |
81516450 DE |
5288 | TYPE_NFIELDS (type) = 0; |
5289 | /* Pre-allocate enough space assuming every field is one bit. */ | |
224c3ddb | 5290 | TYPE_FIELDS (type) |
77b7c781 | 5291 | = (struct field *) TYPE_ZALLOC (type, bit * sizeof (struct field)); |
e9bb382b UW |
5292 | |
5293 | return type; | |
5294 | } | |
5295 | ||
5296 | /* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
81516450 DE |
5297 | position BITPOS is called NAME. Pass NAME as "" for fields that |
5298 | should not be printed. */ | |
5299 | ||
5300 | void | |
5301 | append_flags_type_field (struct type *type, int start_bitpos, int nr_bits, | |
695bfa52 | 5302 | struct type *field_type, const char *name) |
81516450 DE |
5303 | { |
5304 | int type_bitsize = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
5305 | int field_nr = TYPE_NFIELDS (type); | |
5306 | ||
5307 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS); | |
5308 | gdb_assert (TYPE_NFIELDS (type) + 1 <= type_bitsize); | |
5309 | gdb_assert (start_bitpos >= 0 && start_bitpos < type_bitsize); | |
5310 | gdb_assert (nr_bits >= 1 && nr_bits <= type_bitsize); | |
5311 | gdb_assert (name != NULL); | |
5312 | ||
5313 | TYPE_FIELD_NAME (type, field_nr) = xstrdup (name); | |
5314 | TYPE_FIELD_TYPE (type, field_nr) = field_type; | |
5315 | SET_FIELD_BITPOS (TYPE_FIELD (type, field_nr), start_bitpos); | |
5316 | TYPE_FIELD_BITSIZE (type, field_nr) = nr_bits; | |
5317 | ++TYPE_NFIELDS (type); | |
5318 | } | |
5319 | ||
5320 | /* Special version of append_flags_type_field to add a flag field. | |
5321 | Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
e9bb382b | 5322 | position BITPOS is called NAME. */ |
5212577a | 5323 | |
e9bb382b | 5324 | void |
695bfa52 | 5325 | append_flags_type_flag (struct type *type, int bitpos, const char *name) |
e9bb382b | 5326 | { |
81516450 | 5327 | struct gdbarch *gdbarch = get_type_arch (type); |
e9bb382b | 5328 | |
81516450 DE |
5329 | append_flags_type_field (type, bitpos, 1, |
5330 | builtin_type (gdbarch)->builtin_bool, | |
5331 | name); | |
e9bb382b UW |
5332 | } |
5333 | ||
5334 | /* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as | |
5335 | specified by CODE) associated with GDBARCH. NAME is the type name. */ | |
5212577a | 5336 | |
e9bb382b | 5337 | struct type * |
695bfa52 TT |
5338 | arch_composite_type (struct gdbarch *gdbarch, const char *name, |
5339 | enum type_code code) | |
e9bb382b UW |
5340 | { |
5341 | struct type *t; | |
d8734c88 | 5342 | |
e9bb382b UW |
5343 | gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION); |
5344 | t = arch_type (gdbarch, code, 0, NULL); | |
e86ca25f | 5345 | TYPE_NAME (t) = name; |
e9bb382b UW |
5346 | INIT_CPLUS_SPECIFIC (t); |
5347 | return t; | |
5348 | } | |
5349 | ||
5350 | /* Add new field with name NAME and type FIELD to composite type T. | |
f5dff777 DJ |
5351 | Do not set the field's position or adjust the type's length; |
5352 | the caller should do so. Return the new field. */ | |
5212577a | 5353 | |
f5dff777 | 5354 | struct field * |
695bfa52 | 5355 | append_composite_type_field_raw (struct type *t, const char *name, |
f5dff777 | 5356 | struct type *field) |
e9bb382b UW |
5357 | { |
5358 | struct field *f; | |
d8734c88 | 5359 | |
e9bb382b | 5360 | TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; |
224c3ddb SM |
5361 | TYPE_FIELDS (t) = XRESIZEVEC (struct field, TYPE_FIELDS (t), |
5362 | TYPE_NFIELDS (t)); | |
e9bb382b UW |
5363 | f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); |
5364 | memset (f, 0, sizeof f[0]); | |
5365 | FIELD_TYPE (f[0]) = field; | |
5366 | FIELD_NAME (f[0]) = name; | |
f5dff777 DJ |
5367 | return f; |
5368 | } | |
5369 | ||
5370 | /* Add new field with name NAME and type FIELD to composite type T. | |
5371 | ALIGNMENT (if non-zero) specifies the minimum field alignment. */ | |
5212577a | 5372 | |
f5dff777 | 5373 | void |
695bfa52 | 5374 | append_composite_type_field_aligned (struct type *t, const char *name, |
f5dff777 DJ |
5375 | struct type *field, int alignment) |
5376 | { | |
5377 | struct field *f = append_composite_type_field_raw (t, name, field); | |
d8734c88 | 5378 | |
e9bb382b UW |
5379 | if (TYPE_CODE (t) == TYPE_CODE_UNION) |
5380 | { | |
5381 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) | |
5382 | TYPE_LENGTH (t) = TYPE_LENGTH (field); | |
5383 | } | |
5384 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
5385 | { | |
5386 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
5387 | if (TYPE_NFIELDS (t) > 1) | |
5388 | { | |
f41f5e61 PA |
5389 | SET_FIELD_BITPOS (f[0], |
5390 | (FIELD_BITPOS (f[-1]) | |
5391 | + (TYPE_LENGTH (FIELD_TYPE (f[-1])) | |
5392 | * TARGET_CHAR_BIT))); | |
e9bb382b UW |
5393 | |
5394 | if (alignment) | |
5395 | { | |
86c3c1fc AB |
5396 | int left; |
5397 | ||
5398 | alignment *= TARGET_CHAR_BIT; | |
5399 | left = FIELD_BITPOS (f[0]) % alignment; | |
d8734c88 | 5400 | |
e9bb382b UW |
5401 | if (left) |
5402 | { | |
f41f5e61 | 5403 | SET_FIELD_BITPOS (f[0], FIELD_BITPOS (f[0]) + (alignment - left)); |
86c3c1fc | 5404 | TYPE_LENGTH (t) += (alignment - left) / TARGET_CHAR_BIT; |
e9bb382b UW |
5405 | } |
5406 | } | |
5407 | } | |
5408 | } | |
5409 | } | |
5410 | ||
5411 | /* Add new field with name NAME and type FIELD to composite type T. */ | |
5212577a | 5412 | |
e9bb382b | 5413 | void |
695bfa52 | 5414 | append_composite_type_field (struct type *t, const char *name, |
e9bb382b UW |
5415 | struct type *field) |
5416 | { | |
5417 | append_composite_type_field_aligned (t, name, field, 0); | |
5418 | } | |
5419 | ||
000177f0 AC |
5420 | static struct gdbarch_data *gdbtypes_data; |
5421 | ||
5422 | const struct builtin_type * | |
5423 | builtin_type (struct gdbarch *gdbarch) | |
5424 | { | |
9a3c8263 | 5425 | return (const struct builtin_type *) gdbarch_data (gdbarch, gdbtypes_data); |
000177f0 AC |
5426 | } |
5427 | ||
5428 | static void * | |
5429 | gdbtypes_post_init (struct gdbarch *gdbarch) | |
5430 | { | |
5431 | struct builtin_type *builtin_type | |
5432 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); | |
5433 | ||
46bf5051 | 5434 | /* Basic types. */ |
e9bb382b | 5435 | builtin_type->builtin_void |
77b7c781 | 5436 | = arch_type (gdbarch, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void"); |
e9bb382b UW |
5437 | builtin_type->builtin_char |
5438 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5439 | !gdbarch_char_signed (gdbarch), "char"); | |
c413c448 | 5440 | TYPE_NOSIGN (builtin_type->builtin_char) = 1; |
e9bb382b UW |
5441 | builtin_type->builtin_signed_char |
5442 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5443 | 0, "signed char"); | |
5444 | builtin_type->builtin_unsigned_char | |
5445 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5446 | 1, "unsigned char"); | |
5447 | builtin_type->builtin_short | |
5448 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
5449 | 0, "short"); | |
5450 | builtin_type->builtin_unsigned_short | |
5451 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
5452 | 1, "unsigned short"); | |
5453 | builtin_type->builtin_int | |
5454 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
5455 | 0, "int"); | |
5456 | builtin_type->builtin_unsigned_int | |
5457 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
5458 | 1, "unsigned int"); | |
5459 | builtin_type->builtin_long | |
5460 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
5461 | 0, "long"); | |
5462 | builtin_type->builtin_unsigned_long | |
5463 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
5464 | 1, "unsigned long"); | |
5465 | builtin_type->builtin_long_long | |
5466 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
5467 | 0, "long long"); | |
5468 | builtin_type->builtin_unsigned_long_long | |
5469 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
5470 | 1, "unsigned long long"); | |
a6d0f249 AH |
5471 | builtin_type->builtin_half |
5472 | = arch_float_type (gdbarch, gdbarch_half_bit (gdbarch), | |
5473 | "half", gdbarch_half_format (gdbarch)); | |
70bd8e24 | 5474 | builtin_type->builtin_float |
e9bb382b | 5475 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), |
27067745 | 5476 | "float", gdbarch_float_format (gdbarch)); |
70bd8e24 | 5477 | builtin_type->builtin_double |
e9bb382b | 5478 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), |
27067745 | 5479 | "double", gdbarch_double_format (gdbarch)); |
70bd8e24 | 5480 | builtin_type->builtin_long_double |
e9bb382b | 5481 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), |
27067745 | 5482 | "long double", gdbarch_long_double_format (gdbarch)); |
70bd8e24 | 5483 | builtin_type->builtin_complex |
e9bb382b UW |
5484 | = arch_complex_type (gdbarch, "complex", |
5485 | builtin_type->builtin_float); | |
70bd8e24 | 5486 | builtin_type->builtin_double_complex |
e9bb382b UW |
5487 | = arch_complex_type (gdbarch, "double complex", |
5488 | builtin_type->builtin_double); | |
5489 | builtin_type->builtin_string | |
77b7c781 | 5490 | = arch_type (gdbarch, TYPE_CODE_STRING, TARGET_CHAR_BIT, "string"); |
e9bb382b | 5491 | builtin_type->builtin_bool |
77b7c781 | 5492 | = arch_type (gdbarch, TYPE_CODE_BOOL, TARGET_CHAR_BIT, "bool"); |
000177f0 | 5493 | |
7678ef8f TJB |
5494 | /* The following three are about decimal floating point types, which |
5495 | are 32-bits, 64-bits and 128-bits respectively. */ | |
5496 | builtin_type->builtin_decfloat | |
88dfca6c | 5497 | = arch_decfloat_type (gdbarch, 32, "_Decimal32"); |
7678ef8f | 5498 | builtin_type->builtin_decdouble |
88dfca6c | 5499 | = arch_decfloat_type (gdbarch, 64, "_Decimal64"); |
7678ef8f | 5500 | builtin_type->builtin_declong |
88dfca6c | 5501 | = arch_decfloat_type (gdbarch, 128, "_Decimal128"); |
7678ef8f | 5502 | |
69feb676 | 5503 | /* "True" character types. */ |
e9bb382b UW |
5504 | builtin_type->builtin_true_char |
5505 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 0, "true character"); | |
5506 | builtin_type->builtin_true_unsigned_char | |
5507 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 1, "true character"); | |
69feb676 | 5508 | |
df4df182 | 5509 | /* Fixed-size integer types. */ |
e9bb382b UW |
5510 | builtin_type->builtin_int0 |
5511 | = arch_integer_type (gdbarch, 0, 0, "int0_t"); | |
5512 | builtin_type->builtin_int8 | |
5513 | = arch_integer_type (gdbarch, 8, 0, "int8_t"); | |
5514 | builtin_type->builtin_uint8 | |
5515 | = arch_integer_type (gdbarch, 8, 1, "uint8_t"); | |
5516 | builtin_type->builtin_int16 | |
5517 | = arch_integer_type (gdbarch, 16, 0, "int16_t"); | |
5518 | builtin_type->builtin_uint16 | |
5519 | = arch_integer_type (gdbarch, 16, 1, "uint16_t"); | |
d1908f2d JD |
5520 | builtin_type->builtin_int24 |
5521 | = arch_integer_type (gdbarch, 24, 0, "int24_t"); | |
5522 | builtin_type->builtin_uint24 | |
5523 | = arch_integer_type (gdbarch, 24, 1, "uint24_t"); | |
e9bb382b UW |
5524 | builtin_type->builtin_int32 |
5525 | = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
5526 | builtin_type->builtin_uint32 | |
5527 | = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
5528 | builtin_type->builtin_int64 | |
5529 | = arch_integer_type (gdbarch, 64, 0, "int64_t"); | |
5530 | builtin_type->builtin_uint64 | |
5531 | = arch_integer_type (gdbarch, 64, 1, "uint64_t"); | |
5532 | builtin_type->builtin_int128 | |
5533 | = arch_integer_type (gdbarch, 128, 0, "int128_t"); | |
5534 | builtin_type->builtin_uint128 | |
5535 | = arch_integer_type (gdbarch, 128, 1, "uint128_t"); | |
2844d6b5 KW |
5536 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_int8) |= |
5537 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
5538 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_uint8) |= | |
5539 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
df4df182 | 5540 | |
9a22f0d0 PM |
5541 | /* Wide character types. */ |
5542 | builtin_type->builtin_char16 | |
53e710ac | 5543 | = arch_integer_type (gdbarch, 16, 1, "char16_t"); |
9a22f0d0 | 5544 | builtin_type->builtin_char32 |
53e710ac | 5545 | = arch_integer_type (gdbarch, 32, 1, "char32_t"); |
53375380 PA |
5546 | builtin_type->builtin_wchar |
5547 | = arch_integer_type (gdbarch, gdbarch_wchar_bit (gdbarch), | |
5548 | !gdbarch_wchar_signed (gdbarch), "wchar_t"); | |
9a22f0d0 | 5549 | |
46bf5051 | 5550 | /* Default data/code pointer types. */ |
e9bb382b UW |
5551 | builtin_type->builtin_data_ptr |
5552 | = lookup_pointer_type (builtin_type->builtin_void); | |
5553 | builtin_type->builtin_func_ptr | |
5554 | = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
0875794a JK |
5555 | builtin_type->builtin_func_func |
5556 | = lookup_function_type (builtin_type->builtin_func_ptr); | |
46bf5051 | 5557 | |
78267919 | 5558 | /* This type represents a GDB internal function. */ |
e9bb382b UW |
5559 | builtin_type->internal_fn |
5560 | = arch_type (gdbarch, TYPE_CODE_INTERNAL_FUNCTION, 0, | |
5561 | "<internal function>"); | |
78267919 | 5562 | |
e81e7f5e SC |
5563 | /* This type represents an xmethod. */ |
5564 | builtin_type->xmethod | |
5565 | = arch_type (gdbarch, TYPE_CODE_XMETHOD, 0, "<xmethod>"); | |
5566 | ||
46bf5051 UW |
5567 | return builtin_type; |
5568 | } | |
5569 | ||
46bf5051 UW |
5570 | /* This set of objfile-based types is intended to be used by symbol |
5571 | readers as basic types. */ | |
5572 | ||
7a102139 TT |
5573 | static const struct objfile_key<struct objfile_type, |
5574 | gdb::noop_deleter<struct objfile_type>> | |
5575 | objfile_type_data; | |
46bf5051 UW |
5576 | |
5577 | const struct objfile_type * | |
5578 | objfile_type (struct objfile *objfile) | |
5579 | { | |
5580 | struct gdbarch *gdbarch; | |
7a102139 | 5581 | struct objfile_type *objfile_type = objfile_type_data.get (objfile); |
46bf5051 UW |
5582 | |
5583 | if (objfile_type) | |
5584 | return objfile_type; | |
5585 | ||
5586 | objfile_type = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
5587 | 1, struct objfile_type); | |
5588 | ||
5589 | /* Use the objfile architecture to determine basic type properties. */ | |
5590 | gdbarch = get_objfile_arch (objfile); | |
5591 | ||
5592 | /* Basic types. */ | |
5593 | objfile_type->builtin_void | |
77b7c781 | 5594 | = init_type (objfile, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void"); |
46bf5051 | 5595 | objfile_type->builtin_char |
19f392bc UW |
5596 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5597 | !gdbarch_char_signed (gdbarch), "char"); | |
c413c448 | 5598 | TYPE_NOSIGN (objfile_type->builtin_char) = 1; |
46bf5051 | 5599 | objfile_type->builtin_signed_char |
19f392bc UW |
5600 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5601 | 0, "signed char"); | |
46bf5051 | 5602 | objfile_type->builtin_unsigned_char |
19f392bc UW |
5603 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5604 | 1, "unsigned char"); | |
46bf5051 | 5605 | objfile_type->builtin_short |
19f392bc UW |
5606 | = init_integer_type (objfile, gdbarch_short_bit (gdbarch), |
5607 | 0, "short"); | |
46bf5051 | 5608 | objfile_type->builtin_unsigned_short |
19f392bc UW |
5609 | = init_integer_type (objfile, gdbarch_short_bit (gdbarch), |
5610 | 1, "unsigned short"); | |
46bf5051 | 5611 | objfile_type->builtin_int |
19f392bc UW |
5612 | = init_integer_type (objfile, gdbarch_int_bit (gdbarch), |
5613 | 0, "int"); | |
46bf5051 | 5614 | objfile_type->builtin_unsigned_int |
19f392bc UW |
5615 | = init_integer_type (objfile, gdbarch_int_bit (gdbarch), |
5616 | 1, "unsigned int"); | |
46bf5051 | 5617 | objfile_type->builtin_long |
19f392bc UW |
5618 | = init_integer_type (objfile, gdbarch_long_bit (gdbarch), |
5619 | 0, "long"); | |
46bf5051 | 5620 | objfile_type->builtin_unsigned_long |
19f392bc UW |
5621 | = init_integer_type (objfile, gdbarch_long_bit (gdbarch), |
5622 | 1, "unsigned long"); | |
46bf5051 | 5623 | objfile_type->builtin_long_long |
19f392bc UW |
5624 | = init_integer_type (objfile, gdbarch_long_long_bit (gdbarch), |
5625 | 0, "long long"); | |
46bf5051 | 5626 | objfile_type->builtin_unsigned_long_long |
19f392bc UW |
5627 | = init_integer_type (objfile, gdbarch_long_long_bit (gdbarch), |
5628 | 1, "unsigned long long"); | |
46bf5051 | 5629 | objfile_type->builtin_float |
19f392bc UW |
5630 | = init_float_type (objfile, gdbarch_float_bit (gdbarch), |
5631 | "float", gdbarch_float_format (gdbarch)); | |
46bf5051 | 5632 | objfile_type->builtin_double |
19f392bc UW |
5633 | = init_float_type (objfile, gdbarch_double_bit (gdbarch), |
5634 | "double", gdbarch_double_format (gdbarch)); | |
46bf5051 | 5635 | objfile_type->builtin_long_double |
19f392bc UW |
5636 | = init_float_type (objfile, gdbarch_long_double_bit (gdbarch), |
5637 | "long double", gdbarch_long_double_format (gdbarch)); | |
46bf5051 UW |
5638 | |
5639 | /* This type represents a type that was unrecognized in symbol read-in. */ | |
5640 | objfile_type->builtin_error | |
19f392bc | 5641 | = init_type (objfile, TYPE_CODE_ERROR, 0, "<unknown type>"); |
46bf5051 UW |
5642 | |
5643 | /* The following set of types is used for symbols with no | |
5644 | debug information. */ | |
5645 | objfile_type->nodebug_text_symbol | |
77b7c781 | 5646 | = init_type (objfile, TYPE_CODE_FUNC, TARGET_CHAR_BIT, |
19f392bc | 5647 | "<text variable, no debug info>"); |
0875794a | 5648 | objfile_type->nodebug_text_gnu_ifunc_symbol |
77b7c781 | 5649 | = init_type (objfile, TYPE_CODE_FUNC, TARGET_CHAR_BIT, |
19f392bc | 5650 | "<text gnu-indirect-function variable, no debug info>"); |
19f392bc | 5651 | TYPE_GNU_IFUNC (objfile_type->nodebug_text_gnu_ifunc_symbol) = 1; |
0875794a | 5652 | objfile_type->nodebug_got_plt_symbol |
19f392bc UW |
5653 | = init_pointer_type (objfile, gdbarch_addr_bit (gdbarch), |
5654 | "<text from jump slot in .got.plt, no debug info>", | |
5655 | objfile_type->nodebug_text_symbol); | |
46bf5051 | 5656 | objfile_type->nodebug_data_symbol |
46a4882b | 5657 | = init_nodebug_var_type (objfile, "<data variable, no debug info>"); |
46bf5051 | 5658 | objfile_type->nodebug_unknown_symbol |
46a4882b | 5659 | = init_nodebug_var_type (objfile, "<variable (not text or data), no debug info>"); |
46bf5051 | 5660 | objfile_type->nodebug_tls_symbol |
46a4882b | 5661 | = init_nodebug_var_type (objfile, "<thread local variable, no debug info>"); |
000177f0 AC |
5662 | |
5663 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
0a7cfe2c | 5664 | the same. |
000177f0 AC |
5665 | |
5666 | The upshot is: | |
5667 | - gdb's `struct type' always describes the target's | |
5668 | representation. | |
5669 | - gdb's `struct value' objects should always hold values in | |
5670 | target form. | |
5671 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
5672 | address space that the assembler and linker work with. Thus, | |
5673 | since target_read_memory takes a CORE_ADDR as an argument, it | |
5674 | can access any memory on the target, even if the processor has | |
5675 | separate code and data address spaces. | |
5676 | ||
46bf5051 UW |
5677 | In this context, objfile_type->builtin_core_addr is a bit odd: |
5678 | it's a target type for a value the target will never see. It's | |
5679 | only used to hold the values of (typeless) linker symbols, which | |
5680 | are indeed in the unified virtual address space. */ | |
000177f0 | 5681 | |
46bf5051 | 5682 | objfile_type->builtin_core_addr |
19f392bc UW |
5683 | = init_integer_type (objfile, gdbarch_addr_bit (gdbarch), 1, |
5684 | "__CORE_ADDR"); | |
64c50499 | 5685 | |
7a102139 | 5686 | objfile_type_data.set (objfile, objfile_type); |
46bf5051 | 5687 | return objfile_type; |
000177f0 AC |
5688 | } |
5689 | ||
c906108c | 5690 | void |
fba45db2 | 5691 | _initialize_gdbtypes (void) |
c906108c | 5692 | { |
5674de60 UW |
5693 | gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
5694 | ||
ccce17b0 YQ |
5695 | add_setshow_zuinteger_cmd ("overload", no_class, &overload_debug, |
5696 | _("Set debugging of C++ overloading."), | |
5697 | _("Show debugging of C++ overloading."), | |
5698 | _("When enabled, ranking of the " | |
5699 | "functions is displayed."), | |
5700 | NULL, | |
5701 | show_overload_debug, | |
5702 | &setdebuglist, &showdebuglist); | |
5674de60 | 5703 | |
7ba81444 | 5704 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 | 5705 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3e43a32a MS |
5706 | &opaque_type_resolution, |
5707 | _("Set resolution of opaque struct/class/union" | |
5708 | " types (if set before loading symbols)."), | |
5709 | _("Show resolution of opaque struct/class/union" | |
5710 | " types (if set before loading symbols)."), | |
5711 | NULL, NULL, | |
5674de60 UW |
5712 | show_opaque_type_resolution, |
5713 | &setlist, &showlist); | |
a451cb65 KS |
5714 | |
5715 | /* Add an option to permit non-strict type checking. */ | |
5716 | add_setshow_boolean_cmd ("type", class_support, | |
5717 | &strict_type_checking, | |
5718 | _("Set strict type checking."), | |
5719 | _("Show strict type checking."), | |
5720 | NULL, NULL, | |
5721 | show_strict_type_checking, | |
5722 | &setchecklist, &showchecklist); | |
c906108c | 5723 | } |