Commit | Line | Data |
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c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
4f2aea11 | 2 | |
e2882c85 | 3 | Copyright (C) 1992-2018 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}; | |
da096638 | 63 | const struct rank NULL_POINTER_CONVERSION_BADNESS = {2,0}; |
a9d5ef47 | 64 | const struct rank NS_POINTER_CONVERSION_BADNESS = {10,0}; |
a451cb65 | 65 | const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS = {3,0}; |
6403aeea | 66 | |
8da61cc4 | 67 | /* Floatformat pairs. */ |
f9e9243a UW |
68 | const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN] = { |
69 | &floatformat_ieee_half_big, | |
70 | &floatformat_ieee_half_little | |
71 | }; | |
8da61cc4 DJ |
72 | const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { |
73 | &floatformat_ieee_single_big, | |
74 | &floatformat_ieee_single_little | |
75 | }; | |
76 | const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { | |
77 | &floatformat_ieee_double_big, | |
78 | &floatformat_ieee_double_little | |
79 | }; | |
80 | const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { | |
81 | &floatformat_ieee_double_big, | |
82 | &floatformat_ieee_double_littlebyte_bigword | |
83 | }; | |
84 | const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { | |
85 | &floatformat_i387_ext, | |
86 | &floatformat_i387_ext | |
87 | }; | |
88 | const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { | |
89 | &floatformat_m68881_ext, | |
90 | &floatformat_m68881_ext | |
91 | }; | |
92 | const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { | |
93 | &floatformat_arm_ext_big, | |
94 | &floatformat_arm_ext_littlebyte_bigword | |
95 | }; | |
96 | const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { | |
97 | &floatformat_ia64_spill_big, | |
98 | &floatformat_ia64_spill_little | |
99 | }; | |
100 | const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = { | |
101 | &floatformat_ia64_quad_big, | |
102 | &floatformat_ia64_quad_little | |
103 | }; | |
104 | const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { | |
105 | &floatformat_vax_f, | |
106 | &floatformat_vax_f | |
107 | }; | |
108 | const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { | |
109 | &floatformat_vax_d, | |
110 | &floatformat_vax_d | |
111 | }; | |
b14d30e1 | 112 | const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { |
f5aee5ee AM |
113 | &floatformat_ibm_long_double_big, |
114 | &floatformat_ibm_long_double_little | |
b14d30e1 | 115 | }; |
8da61cc4 | 116 | |
2873700e KS |
117 | /* Should opaque types be resolved? */ |
118 | ||
119 | static int opaque_type_resolution = 1; | |
120 | ||
121 | /* A flag to enable printing of debugging information of C++ | |
122 | overloading. */ | |
123 | ||
124 | unsigned int overload_debug = 0; | |
125 | ||
a451cb65 KS |
126 | /* A flag to enable strict type checking. */ |
127 | ||
128 | static int strict_type_checking = 1; | |
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 | |
50810684 | 577 | address_space_name_to_int (struct gdbarch *gdbarch, char *space_identifier) |
47663de5 | 578 | { |
8b2dbe47 | 579 | int type_flags; |
d8734c88 | 580 | |
7ba81444 | 581 | /* Check for known address space delimiters. */ |
47663de5 | 582 | if (!strcmp (space_identifier, "code")) |
876cecd0 | 583 | return TYPE_INSTANCE_FLAG_CODE_SPACE; |
47663de5 | 584 | else if (!strcmp (space_identifier, "data")) |
876cecd0 | 585 | return TYPE_INSTANCE_FLAG_DATA_SPACE; |
5f11f355 AC |
586 | else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
587 | && gdbarch_address_class_name_to_type_flags (gdbarch, | |
588 | space_identifier, | |
589 | &type_flags)) | |
8b2dbe47 | 590 | return type_flags; |
47663de5 | 591 | else |
8a3fe4f8 | 592 | error (_("Unknown address space specifier: \"%s\""), space_identifier); |
47663de5 MS |
593 | } |
594 | ||
595 | /* Identify address space identifier by integer flag as defined in | |
7ba81444 | 596 | gdbtypes.h -- return the string version of the adress space name. */ |
47663de5 | 597 | |
321432c0 | 598 | const char * |
50810684 | 599 | address_space_int_to_name (struct gdbarch *gdbarch, int space_flag) |
47663de5 | 600 | { |
876cecd0 | 601 | if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE) |
47663de5 | 602 | return "code"; |
876cecd0 | 603 | else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE) |
47663de5 | 604 | return "data"; |
876cecd0 | 605 | else if ((space_flag & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) |
5f11f355 AC |
606 | && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
607 | return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); | |
47663de5 MS |
608 | else |
609 | return NULL; | |
610 | } | |
611 | ||
2fdde8f8 | 612 | /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
ad766c0a JB |
613 | |
614 | If STORAGE is non-NULL, create the new type instance there. | |
615 | STORAGE must be in the same obstack as TYPE. */ | |
47663de5 | 616 | |
b9362cc7 | 617 | static struct type * |
2fdde8f8 DJ |
618 | make_qualified_type (struct type *type, int new_flags, |
619 | struct type *storage) | |
47663de5 MS |
620 | { |
621 | struct type *ntype; | |
622 | ||
623 | ntype = type; | |
5f61c20e JK |
624 | do |
625 | { | |
626 | if (TYPE_INSTANCE_FLAGS (ntype) == new_flags) | |
627 | return ntype; | |
628 | ntype = TYPE_CHAIN (ntype); | |
629 | } | |
630 | while (ntype != type); | |
47663de5 | 631 | |
2fdde8f8 DJ |
632 | /* Create a new type instance. */ |
633 | if (storage == NULL) | |
634 | ntype = alloc_type_instance (type); | |
635 | else | |
636 | { | |
7ba81444 MS |
637 | /* If STORAGE was provided, it had better be in the same objfile |
638 | as TYPE. Otherwise, we can't link it into TYPE's cv chain: | |
639 | if one objfile is freed and the other kept, we'd have | |
640 | dangling pointers. */ | |
ad766c0a JB |
641 | gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage)); |
642 | ||
2fdde8f8 DJ |
643 | ntype = storage; |
644 | TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); | |
645 | TYPE_CHAIN (ntype) = ntype; | |
646 | } | |
47663de5 MS |
647 | |
648 | /* Pointers or references to the original type are not relevant to | |
2fdde8f8 | 649 | the new type. */ |
47663de5 MS |
650 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
651 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
47663de5 | 652 | |
2fdde8f8 DJ |
653 | /* Chain the new qualified type to the old type. */ |
654 | TYPE_CHAIN (ntype) = TYPE_CHAIN (type); | |
655 | TYPE_CHAIN (type) = ntype; | |
656 | ||
657 | /* Now set the instance flags and return the new type. */ | |
658 | TYPE_INSTANCE_FLAGS (ntype) = new_flags; | |
47663de5 | 659 | |
ab5d3da6 KB |
660 | /* Set length of new type to that of the original type. */ |
661 | TYPE_LENGTH (ntype) = TYPE_LENGTH (type); | |
662 | ||
47663de5 MS |
663 | return ntype; |
664 | } | |
665 | ||
2fdde8f8 DJ |
666 | /* Make an address-space-delimited variant of a type -- a type that |
667 | is identical to the one supplied except that it has an address | |
668 | space attribute attached to it (such as "code" or "data"). | |
669 | ||
7ba81444 MS |
670 | The space attributes "code" and "data" are for Harvard |
671 | architectures. The address space attributes are for architectures | |
672 | which have alternately sized pointers or pointers with alternate | |
673 | representations. */ | |
2fdde8f8 DJ |
674 | |
675 | struct type * | |
676 | make_type_with_address_space (struct type *type, int space_flag) | |
677 | { | |
2fdde8f8 | 678 | int new_flags = ((TYPE_INSTANCE_FLAGS (type) |
876cecd0 TT |
679 | & ~(TYPE_INSTANCE_FLAG_CODE_SPACE |
680 | | TYPE_INSTANCE_FLAG_DATA_SPACE | |
681 | | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)) | |
2fdde8f8 DJ |
682 | | space_flag); |
683 | ||
684 | return make_qualified_type (type, new_flags, NULL); | |
685 | } | |
c906108c SS |
686 | |
687 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
688 | one supplied except that it may have const or volatile attributes | |
689 | CNST is a flag for setting the const attribute | |
690 | VOLTL is a flag for setting the volatile attribute | |
691 | TYPE is the base type whose variant we are creating. | |
c906108c | 692 | |
ad766c0a JB |
693 | If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to |
694 | storage to hold the new qualified type; *TYPEPTR and TYPE must be | |
695 | in the same objfile. Otherwise, allocate fresh memory for the new | |
696 | type whereever TYPE lives. If TYPEPTR is non-zero, set it to the | |
697 | new type we construct. */ | |
5212577a | 698 | |
c906108c | 699 | struct type * |
7ba81444 MS |
700 | make_cv_type (int cnst, int voltl, |
701 | struct type *type, | |
702 | struct type **typeptr) | |
c906108c | 703 | { |
52f0bd74 | 704 | struct type *ntype; /* New type */ |
c906108c | 705 | |
2fdde8f8 | 706 | int new_flags = (TYPE_INSTANCE_FLAGS (type) |
308d96ed MS |
707 | & ~(TYPE_INSTANCE_FLAG_CONST |
708 | | TYPE_INSTANCE_FLAG_VOLATILE)); | |
c906108c | 709 | |
c906108c | 710 | if (cnst) |
876cecd0 | 711 | new_flags |= TYPE_INSTANCE_FLAG_CONST; |
c906108c SS |
712 | |
713 | if (voltl) | |
876cecd0 | 714 | new_flags |= TYPE_INSTANCE_FLAG_VOLATILE; |
a02fd225 | 715 | |
2fdde8f8 | 716 | if (typeptr && *typeptr != NULL) |
a02fd225 | 717 | { |
ad766c0a JB |
718 | /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
719 | a C-V variant chain that threads across objfiles: if one | |
720 | objfile gets freed, then the other has a broken C-V chain. | |
721 | ||
722 | This code used to try to copy over the main type from TYPE to | |
723 | *TYPEPTR if they were in different objfiles, but that's | |
724 | wrong, too: TYPE may have a field list or member function | |
725 | lists, which refer to types of their own, etc. etc. The | |
726 | whole shebang would need to be copied over recursively; you | |
727 | can't have inter-objfile pointers. The only thing to do is | |
728 | to leave stub types as stub types, and look them up afresh by | |
729 | name each time you encounter them. */ | |
730 | gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type)); | |
2fdde8f8 DJ |
731 | } |
732 | ||
7ba81444 MS |
733 | ntype = make_qualified_type (type, new_flags, |
734 | typeptr ? *typeptr : NULL); | |
c906108c | 735 | |
2fdde8f8 DJ |
736 | if (typeptr != NULL) |
737 | *typeptr = ntype; | |
a02fd225 | 738 | |
2fdde8f8 | 739 | return ntype; |
a02fd225 | 740 | } |
c906108c | 741 | |
06d66ee9 TT |
742 | /* Make a 'restrict'-qualified version of TYPE. */ |
743 | ||
744 | struct type * | |
745 | make_restrict_type (struct type *type) | |
746 | { | |
747 | return make_qualified_type (type, | |
748 | (TYPE_INSTANCE_FLAGS (type) | |
749 | | TYPE_INSTANCE_FLAG_RESTRICT), | |
750 | NULL); | |
751 | } | |
752 | ||
f1660027 TT |
753 | /* Make a type without const, volatile, or restrict. */ |
754 | ||
755 | struct type * | |
756 | make_unqualified_type (struct type *type) | |
757 | { | |
758 | return make_qualified_type (type, | |
759 | (TYPE_INSTANCE_FLAGS (type) | |
760 | & ~(TYPE_INSTANCE_FLAG_CONST | |
761 | | TYPE_INSTANCE_FLAG_VOLATILE | |
762 | | TYPE_INSTANCE_FLAG_RESTRICT)), | |
763 | NULL); | |
764 | } | |
765 | ||
a2c2acaf MW |
766 | /* Make a '_Atomic'-qualified version of TYPE. */ |
767 | ||
768 | struct type * | |
769 | make_atomic_type (struct type *type) | |
770 | { | |
771 | return make_qualified_type (type, | |
772 | (TYPE_INSTANCE_FLAGS (type) | |
773 | | TYPE_INSTANCE_FLAG_ATOMIC), | |
774 | NULL); | |
775 | } | |
776 | ||
2fdde8f8 DJ |
777 | /* Replace the contents of ntype with the type *type. This changes the |
778 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
779 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 780 | |
cda6c68a JB |
781 | In order to build recursive types, it's inevitable that we'll need |
782 | to update types in place --- but this sort of indiscriminate | |
783 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
784 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
785 | clear if more steps are needed. */ | |
5212577a | 786 | |
dd6bda65 DJ |
787 | void |
788 | replace_type (struct type *ntype, struct type *type) | |
789 | { | |
ab5d3da6 | 790 | struct type *chain; |
dd6bda65 | 791 | |
ad766c0a JB |
792 | /* These two types had better be in the same objfile. Otherwise, |
793 | the assignment of one type's main type structure to the other | |
794 | will produce a type with references to objects (names; field | |
795 | lists; etc.) allocated on an objfile other than its own. */ | |
e46dd0f4 | 796 | gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (type)); |
ad766c0a | 797 | |
2fdde8f8 | 798 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 799 | |
7ba81444 MS |
800 | /* The type length is not a part of the main type. Update it for |
801 | each type on the variant chain. */ | |
ab5d3da6 | 802 | chain = ntype; |
5f61c20e JK |
803 | do |
804 | { | |
805 | /* Assert that this element of the chain has no address-class bits | |
806 | set in its flags. Such type variants might have type lengths | |
807 | which are supposed to be different from the non-address-class | |
808 | variants. This assertion shouldn't ever be triggered because | |
809 | symbol readers which do construct address-class variants don't | |
810 | call replace_type(). */ | |
811 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
812 | ||
813 | TYPE_LENGTH (chain) = TYPE_LENGTH (type); | |
814 | chain = TYPE_CHAIN (chain); | |
815 | } | |
816 | while (ntype != chain); | |
ab5d3da6 | 817 | |
2fdde8f8 DJ |
818 | /* Assert that the two types have equivalent instance qualifiers. |
819 | This should be true for at least all of our debug readers. */ | |
820 | gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type)); | |
dd6bda65 DJ |
821 | } |
822 | ||
c906108c SS |
823 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
824 | May need to construct such a type if this is the first use. | |
825 | The TYPE is the type of the member. The DOMAIN is the type | |
826 | of the aggregate that the member belongs to. */ | |
827 | ||
828 | struct type * | |
0d5de010 | 829 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 830 | { |
52f0bd74 | 831 | struct type *mtype; |
c906108c | 832 | |
e9bb382b | 833 | mtype = alloc_type_copy (type); |
0d5de010 | 834 | smash_to_memberptr_type (mtype, domain, type); |
c16abbde | 835 | return mtype; |
c906108c SS |
836 | } |
837 | ||
0d5de010 DJ |
838 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
839 | ||
840 | struct type * | |
841 | lookup_methodptr_type (struct type *to_type) | |
842 | { | |
843 | struct type *mtype; | |
844 | ||
e9bb382b | 845 | mtype = alloc_type_copy (to_type); |
0b92b5bb | 846 | smash_to_methodptr_type (mtype, to_type); |
0d5de010 DJ |
847 | return mtype; |
848 | } | |
849 | ||
7ba81444 MS |
850 | /* Allocate a stub method whose return type is TYPE. This apparently |
851 | happens for speed of symbol reading, since parsing out the | |
852 | arguments to the method is cpu-intensive, the way we are doing it. | |
853 | So, we will fill in arguments later. This always returns a fresh | |
854 | type. */ | |
c906108c SS |
855 | |
856 | struct type * | |
fba45db2 | 857 | allocate_stub_method (struct type *type) |
c906108c SS |
858 | { |
859 | struct type *mtype; | |
860 | ||
e9bb382b UW |
861 | mtype = alloc_type_copy (type); |
862 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; | |
863 | TYPE_LENGTH (mtype) = 1; | |
864 | TYPE_STUB (mtype) = 1; | |
c906108c | 865 | TYPE_TARGET_TYPE (mtype) = type; |
4bfb94b8 | 866 | /* TYPE_SELF_TYPE (mtype) = unknown yet */ |
c16abbde | 867 | return mtype; |
c906108c SS |
868 | } |
869 | ||
0f59d5fc PA |
870 | /* See gdbtypes.h. */ |
871 | ||
872 | bool | |
873 | operator== (const dynamic_prop &l, const dynamic_prop &r) | |
874 | { | |
875 | if (l.kind != r.kind) | |
876 | return false; | |
877 | ||
878 | switch (l.kind) | |
879 | { | |
880 | case PROP_UNDEFINED: | |
881 | return true; | |
882 | case PROP_CONST: | |
883 | return l.data.const_val == r.data.const_val; | |
884 | case PROP_ADDR_OFFSET: | |
885 | case PROP_LOCEXPR: | |
886 | case PROP_LOCLIST: | |
887 | return l.data.baton == r.data.baton; | |
888 | } | |
889 | ||
890 | gdb_assert_not_reached ("unhandled dynamic_prop kind"); | |
891 | } | |
892 | ||
893 | /* See gdbtypes.h. */ | |
894 | ||
895 | bool | |
896 | operator== (const range_bounds &l, const range_bounds &r) | |
897 | { | |
898 | #define FIELD_EQ(FIELD) (l.FIELD == r.FIELD) | |
899 | ||
900 | return (FIELD_EQ (low) | |
901 | && FIELD_EQ (high) | |
902 | && FIELD_EQ (flag_upper_bound_is_count) | |
903 | && FIELD_EQ (flag_bound_evaluated)); | |
904 | ||
905 | #undef FIELD_EQ | |
906 | } | |
907 | ||
729efb13 SA |
908 | /* Create a range type with a dynamic range from LOW_BOUND to |
909 | HIGH_BOUND, inclusive. See create_range_type for further details. */ | |
c906108c SS |
910 | |
911 | struct type * | |
729efb13 SA |
912 | create_range_type (struct type *result_type, struct type *index_type, |
913 | const struct dynamic_prop *low_bound, | |
914 | const struct dynamic_prop *high_bound) | |
c906108c SS |
915 | { |
916 | if (result_type == NULL) | |
e9bb382b | 917 | result_type = alloc_type_copy (index_type); |
c906108c SS |
918 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; |
919 | TYPE_TARGET_TYPE (result_type) = index_type; | |
74a9bb82 | 920 | if (TYPE_STUB (index_type)) |
876cecd0 | 921 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c SS |
922 | else |
923 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
729efb13 | 924 | |
43bbcdc2 PH |
925 | TYPE_RANGE_DATA (result_type) = (struct range_bounds *) |
926 | TYPE_ZALLOC (result_type, sizeof (struct range_bounds)); | |
729efb13 SA |
927 | TYPE_RANGE_DATA (result_type)->low = *low_bound; |
928 | TYPE_RANGE_DATA (result_type)->high = *high_bound; | |
c906108c | 929 | |
729efb13 | 930 | if (low_bound->kind == PROP_CONST && low_bound->data.const_val >= 0) |
876cecd0 | 931 | TYPE_UNSIGNED (result_type) = 1; |
c906108c | 932 | |
45e44d27 JB |
933 | /* Ada allows the declaration of range types whose upper bound is |
934 | less than the lower bound, so checking the lower bound is not | |
935 | enough. Make sure we do not mark a range type whose upper bound | |
936 | is negative as unsigned. */ | |
937 | if (high_bound->kind == PROP_CONST && high_bound->data.const_val < 0) | |
938 | TYPE_UNSIGNED (result_type) = 0; | |
939 | ||
262452ec | 940 | return result_type; |
c906108c SS |
941 | } |
942 | ||
729efb13 SA |
943 | /* Create a range type using either a blank type supplied in |
944 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
945 | INDEX_TYPE. | |
946 | ||
947 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND | |
948 | to HIGH_BOUND, inclusive. | |
949 | ||
950 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
951 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
952 | ||
953 | struct type * | |
954 | create_static_range_type (struct type *result_type, struct type *index_type, | |
955 | LONGEST low_bound, LONGEST high_bound) | |
956 | { | |
957 | struct dynamic_prop low, high; | |
958 | ||
959 | low.kind = PROP_CONST; | |
960 | low.data.const_val = low_bound; | |
961 | ||
962 | high.kind = PROP_CONST; | |
963 | high.data.const_val = high_bound; | |
964 | ||
965 | result_type = create_range_type (result_type, index_type, &low, &high); | |
966 | ||
967 | return result_type; | |
968 | } | |
969 | ||
80180f79 SA |
970 | /* Predicate tests whether BOUNDS are static. Returns 1 if all bounds values |
971 | are static, otherwise returns 0. */ | |
972 | ||
973 | static int | |
974 | has_static_range (const struct range_bounds *bounds) | |
975 | { | |
976 | return (bounds->low.kind == PROP_CONST | |
977 | && bounds->high.kind == PROP_CONST); | |
978 | } | |
979 | ||
980 | ||
7ba81444 MS |
981 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
982 | TYPE. Return 1 if type is a range type, 0 if it is discrete (and | |
983 | bounds will fit in LONGEST), or -1 otherwise. */ | |
c906108c SS |
984 | |
985 | int | |
fba45db2 | 986 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c | 987 | { |
f168693b | 988 | type = check_typedef (type); |
c906108c SS |
989 | switch (TYPE_CODE (type)) |
990 | { | |
991 | case TYPE_CODE_RANGE: | |
992 | *lowp = TYPE_LOW_BOUND (type); | |
993 | *highp = TYPE_HIGH_BOUND (type); | |
994 | return 1; | |
995 | case TYPE_CODE_ENUM: | |
996 | if (TYPE_NFIELDS (type) > 0) | |
997 | { | |
998 | /* The enums may not be sorted by value, so search all | |
0963b4bd | 999 | entries. */ |
c906108c SS |
1000 | int i; |
1001 | ||
14e75d8e | 1002 | *lowp = *highp = TYPE_FIELD_ENUMVAL (type, 0); |
c906108c SS |
1003 | for (i = 0; i < TYPE_NFIELDS (type); i++) |
1004 | { | |
14e75d8e JK |
1005 | if (TYPE_FIELD_ENUMVAL (type, i) < *lowp) |
1006 | *lowp = TYPE_FIELD_ENUMVAL (type, i); | |
1007 | if (TYPE_FIELD_ENUMVAL (type, i) > *highp) | |
1008 | *highp = TYPE_FIELD_ENUMVAL (type, i); | |
c906108c SS |
1009 | } |
1010 | ||
7ba81444 | 1011 | /* Set unsigned indicator if warranted. */ |
c5aa993b | 1012 | if (*lowp >= 0) |
c906108c | 1013 | { |
876cecd0 | 1014 | TYPE_UNSIGNED (type) = 1; |
c906108c SS |
1015 | } |
1016 | } | |
1017 | else | |
1018 | { | |
1019 | *lowp = 0; | |
1020 | *highp = -1; | |
1021 | } | |
1022 | return 0; | |
1023 | case TYPE_CODE_BOOL: | |
1024 | *lowp = 0; | |
1025 | *highp = 1; | |
1026 | return 0; | |
1027 | case TYPE_CODE_INT: | |
c5aa993b | 1028 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
1029 | return -1; |
1030 | if (!TYPE_UNSIGNED (type)) | |
1031 | { | |
c5aa993b | 1032 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
1033 | *highp = -*lowp - 1; |
1034 | return 0; | |
1035 | } | |
86a73007 | 1036 | /* fall through */ |
c906108c SS |
1037 | case TYPE_CODE_CHAR: |
1038 | *lowp = 0; | |
1039 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 | 1040 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
7ba81444 | 1041 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
c906108c SS |
1042 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
1043 | *highp = (*highp - 1) | *highp; | |
1044 | return 0; | |
1045 | default: | |
1046 | return -1; | |
1047 | } | |
1048 | } | |
1049 | ||
dbc98a8b KW |
1050 | /* Assuming TYPE is a simple, non-empty array type, compute its upper |
1051 | and lower bound. Save the low bound into LOW_BOUND if not NULL. | |
1052 | Save the high bound into HIGH_BOUND if not NULL. | |
1053 | ||
0963b4bd | 1054 | Return 1 if the operation was successful. Return zero otherwise, |
dbc98a8b KW |
1055 | in which case the values of LOW_BOUND and HIGH_BOUNDS are unmodified. |
1056 | ||
1057 | We now simply use get_discrete_bounds call to get the values | |
1058 | of the low and high bounds. | |
1059 | get_discrete_bounds can return three values: | |
1060 | 1, meaning that index is a range, | |
1061 | 0, meaning that index is a discrete type, | |
1062 | or -1 for failure. */ | |
1063 | ||
1064 | int | |
1065 | get_array_bounds (struct type *type, LONGEST *low_bound, LONGEST *high_bound) | |
1066 | { | |
1067 | struct type *index = TYPE_INDEX_TYPE (type); | |
1068 | LONGEST low = 0; | |
1069 | LONGEST high = 0; | |
1070 | int res; | |
1071 | ||
1072 | if (index == NULL) | |
1073 | return 0; | |
1074 | ||
1075 | res = get_discrete_bounds (index, &low, &high); | |
1076 | if (res == -1) | |
1077 | return 0; | |
1078 | ||
1079 | /* Check if the array bounds are undefined. */ | |
1080 | if (res == 1 | |
1081 | && ((low_bound && TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED (type)) | |
1082 | || (high_bound && TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type)))) | |
1083 | return 0; | |
1084 | ||
1085 | if (low_bound) | |
1086 | *low_bound = low; | |
1087 | ||
1088 | if (high_bound) | |
1089 | *high_bound = high; | |
1090 | ||
1091 | return 1; | |
1092 | } | |
1093 | ||
aa715135 JG |
1094 | /* Assuming that TYPE is a discrete type and VAL is a valid integer |
1095 | representation of a value of this type, save the corresponding | |
1096 | position number in POS. | |
1097 | ||
1098 | Its differs from VAL only in the case of enumeration types. In | |
1099 | this case, the position number of the value of the first listed | |
1100 | enumeration literal is zero; the position number of the value of | |
1101 | each subsequent enumeration literal is one more than that of its | |
1102 | predecessor in the list. | |
1103 | ||
1104 | Return 1 if the operation was successful. Return zero otherwise, | |
1105 | in which case the value of POS is unmodified. | |
1106 | */ | |
1107 | ||
1108 | int | |
1109 | discrete_position (struct type *type, LONGEST val, LONGEST *pos) | |
1110 | { | |
1111 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) | |
1112 | { | |
1113 | int i; | |
1114 | ||
1115 | for (i = 0; i < TYPE_NFIELDS (type); i += 1) | |
1116 | { | |
1117 | if (val == TYPE_FIELD_ENUMVAL (type, i)) | |
1118 | { | |
1119 | *pos = i; | |
1120 | return 1; | |
1121 | } | |
1122 | } | |
1123 | /* Invalid enumeration value. */ | |
1124 | return 0; | |
1125 | } | |
1126 | else | |
1127 | { | |
1128 | *pos = val; | |
1129 | return 1; | |
1130 | } | |
1131 | } | |
1132 | ||
7ba81444 MS |
1133 | /* Create an array type using either a blank type supplied in |
1134 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
1135 | RANGE_TYPE. | |
c906108c SS |
1136 | |
1137 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
1138 | RANGE_TYPE. | |
1139 | ||
a405673c JB |
1140 | BYTE_STRIDE_PROP, when not NULL, provides the array's byte stride. |
1141 | This byte stride property is added to the resulting array type | |
1142 | as a DYN_PROP_BYTE_STRIDE. As a consequence, the BYTE_STRIDE_PROP | |
1143 | argument can only be used to create types that are objfile-owned | |
1144 | (see add_dyn_prop), meaning that either this function must be called | |
1145 | with an objfile-owned RESULT_TYPE, or an objfile-owned RANGE_TYPE. | |
1146 | ||
1147 | BIT_STRIDE is taken into account only when BYTE_STRIDE_PROP is NULL. | |
dc53a7ad JB |
1148 | If BIT_STRIDE is not zero, build a packed array type whose element |
1149 | size is BIT_STRIDE. Otherwise, ignore this parameter. | |
1150 | ||
7ba81444 MS |
1151 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1152 | sure it is TYPE_CODE_UNDEF before we bash it into an array | |
1153 | type? */ | |
c906108c SS |
1154 | |
1155 | struct type * | |
dc53a7ad JB |
1156 | create_array_type_with_stride (struct type *result_type, |
1157 | struct type *element_type, | |
1158 | struct type *range_type, | |
a405673c | 1159 | struct dynamic_prop *byte_stride_prop, |
dc53a7ad | 1160 | unsigned int bit_stride) |
c906108c | 1161 | { |
a405673c JB |
1162 | if (byte_stride_prop != NULL |
1163 | && byte_stride_prop->kind == PROP_CONST) | |
1164 | { | |
1165 | /* The byte stride is actually not dynamic. Pretend we were | |
1166 | called with bit_stride set instead of byte_stride_prop. | |
1167 | This will give us the same result type, while avoiding | |
1168 | the need to handle this as a special case. */ | |
1169 | bit_stride = byte_stride_prop->data.const_val * 8; | |
1170 | byte_stride_prop = NULL; | |
1171 | } | |
1172 | ||
c906108c | 1173 | if (result_type == NULL) |
e9bb382b UW |
1174 | result_type = alloc_type_copy (range_type); |
1175 | ||
c906108c SS |
1176 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
1177 | TYPE_TARGET_TYPE (result_type) = element_type; | |
a405673c JB |
1178 | if (byte_stride_prop == NULL |
1179 | && has_static_range (TYPE_RANGE_DATA (range_type)) | |
b4a7fcab JB |
1180 | && (!type_not_associated (result_type) |
1181 | && !type_not_allocated (result_type))) | |
80180f79 SA |
1182 | { |
1183 | LONGEST low_bound, high_bound; | |
1184 | ||
1185 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
1186 | low_bound = high_bound = 0; | |
f168693b | 1187 | element_type = check_typedef (element_type); |
80180f79 SA |
1188 | /* Be careful when setting the array length. Ada arrays can be |
1189 | empty arrays with the high_bound being smaller than the low_bound. | |
1190 | In such cases, the array length should be zero. */ | |
1191 | if (high_bound < low_bound) | |
1192 | TYPE_LENGTH (result_type) = 0; | |
1193 | else if (bit_stride > 0) | |
1194 | TYPE_LENGTH (result_type) = | |
1195 | (bit_stride * (high_bound - low_bound + 1) + 7) / 8; | |
1196 | else | |
1197 | TYPE_LENGTH (result_type) = | |
1198 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
1199 | } | |
ab0d6e0d | 1200 | else |
80180f79 SA |
1201 | { |
1202 | /* This type is dynamic and its length needs to be computed | |
1203 | on demand. In the meantime, avoid leaving the TYPE_LENGTH | |
1204 | undefined by setting it to zero. Although we are not expected | |
1205 | to trust TYPE_LENGTH in this case, setting the size to zero | |
1206 | allows us to avoid allocating objects of random sizes in case | |
1207 | we accidently do. */ | |
1208 | TYPE_LENGTH (result_type) = 0; | |
1209 | } | |
1210 | ||
c906108c SS |
1211 | TYPE_NFIELDS (result_type) = 1; |
1212 | TYPE_FIELDS (result_type) = | |
1deafd4e | 1213 | (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); |
262452ec | 1214 | TYPE_INDEX_TYPE (result_type) = range_type; |
a405673c | 1215 | if (byte_stride_prop != NULL) |
50a82047 | 1216 | add_dyn_prop (DYN_PROP_BYTE_STRIDE, *byte_stride_prop, result_type); |
a405673c | 1217 | else if (bit_stride > 0) |
dc53a7ad | 1218 | TYPE_FIELD_BITSIZE (result_type, 0) = bit_stride; |
c906108c | 1219 | |
a9ff5f12 | 1220 | /* TYPE_TARGET_STUB will take care of zero length arrays. */ |
c906108c | 1221 | if (TYPE_LENGTH (result_type) == 0) |
876cecd0 | 1222 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c | 1223 | |
c16abbde | 1224 | return result_type; |
c906108c SS |
1225 | } |
1226 | ||
dc53a7ad JB |
1227 | /* Same as create_array_type_with_stride but with no bit_stride |
1228 | (BIT_STRIDE = 0), thus building an unpacked array. */ | |
1229 | ||
1230 | struct type * | |
1231 | create_array_type (struct type *result_type, | |
1232 | struct type *element_type, | |
1233 | struct type *range_type) | |
1234 | { | |
1235 | return create_array_type_with_stride (result_type, element_type, | |
a405673c | 1236 | range_type, NULL, 0); |
dc53a7ad JB |
1237 | } |
1238 | ||
e3506a9f UW |
1239 | struct type * |
1240 | lookup_array_range_type (struct type *element_type, | |
63375b74 | 1241 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f | 1242 | { |
929b5ad4 JB |
1243 | struct type *index_type; |
1244 | struct type *range_type; | |
1245 | ||
1246 | if (TYPE_OBJFILE_OWNED (element_type)) | |
1247 | index_type = objfile_type (TYPE_OWNER (element_type).objfile)->builtin_int; | |
1248 | else | |
1249 | index_type = builtin_type (get_type_arch (element_type))->builtin_int; | |
1250 | range_type = create_static_range_type (NULL, index_type, | |
1251 | low_bound, high_bound); | |
d8734c88 | 1252 | |
e3506a9f UW |
1253 | return create_array_type (NULL, element_type, range_type); |
1254 | } | |
1255 | ||
7ba81444 MS |
1256 | /* Create a string type using either a blank type supplied in |
1257 | RESULT_TYPE, or creating a new type. String types are similar | |
1258 | enough to array of char types that we can use create_array_type to | |
1259 | build the basic type and then bash it into a string type. | |
c906108c SS |
1260 | |
1261 | For fixed length strings, the range type contains 0 as the lower | |
1262 | bound and the length of the string minus one as the upper bound. | |
1263 | ||
7ba81444 MS |
1264 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1265 | sure it is TYPE_CODE_UNDEF before we bash it into a string | |
1266 | type? */ | |
c906108c SS |
1267 | |
1268 | struct type * | |
3b7538c0 UW |
1269 | create_string_type (struct type *result_type, |
1270 | struct type *string_char_type, | |
7ba81444 | 1271 | struct type *range_type) |
c906108c SS |
1272 | { |
1273 | result_type = create_array_type (result_type, | |
f290d38e | 1274 | string_char_type, |
c906108c SS |
1275 | range_type); |
1276 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
c16abbde | 1277 | return result_type; |
c906108c SS |
1278 | } |
1279 | ||
e3506a9f UW |
1280 | struct type * |
1281 | lookup_string_range_type (struct type *string_char_type, | |
63375b74 | 1282 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f UW |
1283 | { |
1284 | struct type *result_type; | |
d8734c88 | 1285 | |
e3506a9f UW |
1286 | result_type = lookup_array_range_type (string_char_type, |
1287 | low_bound, high_bound); | |
1288 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
1289 | return result_type; | |
1290 | } | |
1291 | ||
c906108c | 1292 | struct type * |
fba45db2 | 1293 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c | 1294 | { |
c906108c | 1295 | if (result_type == NULL) |
e9bb382b UW |
1296 | result_type = alloc_type_copy (domain_type); |
1297 | ||
c906108c SS |
1298 | TYPE_CODE (result_type) = TYPE_CODE_SET; |
1299 | TYPE_NFIELDS (result_type) = 1; | |
224c3ddb SM |
1300 | TYPE_FIELDS (result_type) |
1301 | = (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); | |
c906108c | 1302 | |
74a9bb82 | 1303 | if (!TYPE_STUB (domain_type)) |
c906108c | 1304 | { |
f9780d5b | 1305 | LONGEST low_bound, high_bound, bit_length; |
d8734c88 | 1306 | |
c906108c SS |
1307 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
1308 | low_bound = high_bound = 0; | |
1309 | bit_length = high_bound - low_bound + 1; | |
1310 | TYPE_LENGTH (result_type) | |
1311 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
f9780d5b | 1312 | if (low_bound >= 0) |
876cecd0 | 1313 | TYPE_UNSIGNED (result_type) = 1; |
c906108c SS |
1314 | } |
1315 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
1316 | ||
c16abbde | 1317 | return result_type; |
c906108c SS |
1318 | } |
1319 | ||
ea37ba09 DJ |
1320 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
1321 | and any array types nested inside it. */ | |
1322 | ||
1323 | void | |
1324 | make_vector_type (struct type *array_type) | |
1325 | { | |
1326 | struct type *inner_array, *elt_type; | |
1327 | int flags; | |
1328 | ||
1329 | /* Find the innermost array type, in case the array is | |
1330 | multi-dimensional. */ | |
1331 | inner_array = array_type; | |
1332 | while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY) | |
1333 | inner_array = TYPE_TARGET_TYPE (inner_array); | |
1334 | ||
1335 | elt_type = TYPE_TARGET_TYPE (inner_array); | |
1336 | if (TYPE_CODE (elt_type) == TYPE_CODE_INT) | |
1337 | { | |
2844d6b5 | 1338 | flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_INSTANCE_FLAG_NOTTEXT; |
ea37ba09 DJ |
1339 | elt_type = make_qualified_type (elt_type, flags, NULL); |
1340 | TYPE_TARGET_TYPE (inner_array) = elt_type; | |
1341 | } | |
1342 | ||
876cecd0 | 1343 | TYPE_VECTOR (array_type) = 1; |
ea37ba09 DJ |
1344 | } |
1345 | ||
794ac428 | 1346 | struct type * |
ac3aafc7 EZ |
1347 | init_vector_type (struct type *elt_type, int n) |
1348 | { | |
1349 | struct type *array_type; | |
d8734c88 | 1350 | |
e3506a9f | 1351 | array_type = lookup_array_range_type (elt_type, 0, n - 1); |
ea37ba09 | 1352 | make_vector_type (array_type); |
ac3aafc7 EZ |
1353 | return array_type; |
1354 | } | |
1355 | ||
09e2d7c7 DE |
1356 | /* Internal routine called by TYPE_SELF_TYPE to return the type that TYPE |
1357 | belongs to. In c++ this is the class of "this", but TYPE_THIS_TYPE is too | |
1358 | confusing. "self" is a common enough replacement for "this". | |
1359 | TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or | |
1360 | TYPE_CODE_METHOD. */ | |
1361 | ||
1362 | struct type * | |
1363 | internal_type_self_type (struct type *type) | |
1364 | { | |
1365 | switch (TYPE_CODE (type)) | |
1366 | { | |
1367 | case TYPE_CODE_METHODPTR: | |
1368 | case TYPE_CODE_MEMBERPTR: | |
eaaf76ab DE |
1369 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) |
1370 | return NULL; | |
09e2d7c7 DE |
1371 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE); |
1372 | return TYPE_MAIN_TYPE (type)->type_specific.self_type; | |
1373 | case TYPE_CODE_METHOD: | |
eaaf76ab DE |
1374 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) |
1375 | return NULL; | |
09e2d7c7 DE |
1376 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC); |
1377 | return TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type; | |
1378 | default: | |
1379 | gdb_assert_not_reached ("bad type"); | |
1380 | } | |
1381 | } | |
1382 | ||
1383 | /* Set the type of the class that TYPE belongs to. | |
1384 | In c++ this is the class of "this". | |
1385 | TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or | |
1386 | TYPE_CODE_METHOD. */ | |
1387 | ||
1388 | void | |
1389 | set_type_self_type (struct type *type, struct type *self_type) | |
1390 | { | |
1391 | switch (TYPE_CODE (type)) | |
1392 | { | |
1393 | case TYPE_CODE_METHODPTR: | |
1394 | case TYPE_CODE_MEMBERPTR: | |
1395 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) | |
1396 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_SELF_TYPE; | |
1397 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE); | |
1398 | TYPE_MAIN_TYPE (type)->type_specific.self_type = self_type; | |
1399 | break; | |
1400 | case TYPE_CODE_METHOD: | |
1401 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) | |
1402 | INIT_FUNC_SPECIFIC (type); | |
1403 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC); | |
1404 | TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type = self_type; | |
1405 | break; | |
1406 | default: | |
1407 | gdb_assert_not_reached ("bad type"); | |
1408 | } | |
1409 | } | |
1410 | ||
1411 | /* Smash TYPE to be a type of pointers to members of SELF_TYPE with type | |
0d5de010 DJ |
1412 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a |
1413 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
1414 | TYPE doesn't include the offset (that's the value of the MEMBER | |
1415 | itself), but does include the structure type into which it points | |
1416 | (for some reason). | |
c906108c | 1417 | |
7ba81444 MS |
1418 | When "smashing" the type, we preserve the objfile that the old type |
1419 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1420 | allocated. */ |
1421 | ||
1422 | void | |
09e2d7c7 | 1423 | smash_to_memberptr_type (struct type *type, struct type *self_type, |
0d5de010 | 1424 | struct type *to_type) |
c906108c | 1425 | { |
2fdde8f8 | 1426 | smash_type (type); |
09e2d7c7 | 1427 | TYPE_CODE (type) = TYPE_CODE_MEMBERPTR; |
c906108c | 1428 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1429 | set_type_self_type (type, self_type); |
0d5de010 DJ |
1430 | /* Assume that a data member pointer is the same size as a normal |
1431 | pointer. */ | |
50810684 UW |
1432 | TYPE_LENGTH (type) |
1433 | = gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT; | |
c906108c SS |
1434 | } |
1435 | ||
0b92b5bb TT |
1436 | /* Smash TYPE to be a type of pointer to methods type TO_TYPE. |
1437 | ||
1438 | When "smashing" the type, we preserve the objfile that the old type | |
1439 | pointed to, since we aren't changing where the type is actually | |
1440 | allocated. */ | |
1441 | ||
1442 | void | |
1443 | smash_to_methodptr_type (struct type *type, struct type *to_type) | |
1444 | { | |
1445 | smash_type (type); | |
09e2d7c7 | 1446 | TYPE_CODE (type) = TYPE_CODE_METHODPTR; |
0b92b5bb | 1447 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1448 | set_type_self_type (type, TYPE_SELF_TYPE (to_type)); |
0b92b5bb | 1449 | TYPE_LENGTH (type) = cplus_method_ptr_size (to_type); |
0b92b5bb TT |
1450 | } |
1451 | ||
09e2d7c7 | 1452 | /* Smash TYPE to be a type of method of SELF_TYPE with type TO_TYPE. |
c906108c SS |
1453 | METHOD just means `function that gets an extra "this" argument'. |
1454 | ||
7ba81444 MS |
1455 | When "smashing" the type, we preserve the objfile that the old type |
1456 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1457 | allocated. */ |
1458 | ||
1459 | void | |
09e2d7c7 | 1460 | smash_to_method_type (struct type *type, struct type *self_type, |
ad2f7632 DJ |
1461 | struct type *to_type, struct field *args, |
1462 | int nargs, int varargs) | |
c906108c | 1463 | { |
2fdde8f8 | 1464 | smash_type (type); |
09e2d7c7 | 1465 | TYPE_CODE (type) = TYPE_CODE_METHOD; |
c906108c | 1466 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1467 | set_type_self_type (type, self_type); |
ad2f7632 DJ |
1468 | TYPE_FIELDS (type) = args; |
1469 | TYPE_NFIELDS (type) = nargs; | |
1470 | if (varargs) | |
876cecd0 | 1471 | TYPE_VARARGS (type) = 1; |
c906108c | 1472 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
c906108c SS |
1473 | } |
1474 | ||
a737d952 | 1475 | /* A wrapper of TYPE_NAME which calls error if the type is anonymous. |
d8228535 JK |
1476 | Since GCC PR debug/47510 DWARF provides associated information to detect the |
1477 | anonymous class linkage name from its typedef. | |
1478 | ||
1479 | Parameter TYPE should not yet have CHECK_TYPEDEF applied, this function will | |
1480 | apply it itself. */ | |
1481 | ||
1482 | const char * | |
a737d952 | 1483 | type_name_or_error (struct type *type) |
d8228535 JK |
1484 | { |
1485 | struct type *saved_type = type; | |
1486 | const char *name; | |
1487 | struct objfile *objfile; | |
1488 | ||
f168693b | 1489 | type = check_typedef (type); |
d8228535 | 1490 | |
a737d952 | 1491 | name = TYPE_NAME (type); |
d8228535 JK |
1492 | if (name != NULL) |
1493 | return name; | |
1494 | ||
a737d952 | 1495 | name = TYPE_NAME (saved_type); |
d8228535 JK |
1496 | objfile = TYPE_OBJFILE (saved_type); |
1497 | error (_("Invalid anonymous type %s [in module %s], GCC PR debug/47510 bug?"), | |
4262abfb JK |
1498 | name ? name : "<anonymous>", |
1499 | objfile ? objfile_name (objfile) : "<arch>"); | |
d8228535 JK |
1500 | } |
1501 | ||
7ba81444 MS |
1502 | /* Lookup a typedef or primitive type named NAME, visible in lexical |
1503 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
1504 | suitably defined. */ | |
c906108c SS |
1505 | |
1506 | struct type * | |
e6c014f2 | 1507 | lookup_typename (const struct language_defn *language, |
ddd49eee | 1508 | struct gdbarch *gdbarch, const char *name, |
34eaf542 | 1509 | const struct block *block, int noerr) |
c906108c | 1510 | { |
52f0bd74 | 1511 | struct symbol *sym; |
c906108c | 1512 | |
1994afbf | 1513 | sym = lookup_symbol_in_language (name, block, VAR_DOMAIN, |
d12307c1 | 1514 | language->la_language, NULL).symbol; |
c51fe631 DE |
1515 | if (sym != NULL && SYMBOL_CLASS (sym) == LOC_TYPEDEF) |
1516 | return SYMBOL_TYPE (sym); | |
1517 | ||
c51fe631 DE |
1518 | if (noerr) |
1519 | return NULL; | |
1520 | error (_("No type named %s."), name); | |
c906108c SS |
1521 | } |
1522 | ||
1523 | struct type * | |
e6c014f2 | 1524 | lookup_unsigned_typename (const struct language_defn *language, |
0d5cff50 | 1525 | struct gdbarch *gdbarch, const char *name) |
c906108c | 1526 | { |
224c3ddb | 1527 | char *uns = (char *) alloca (strlen (name) + 10); |
c906108c SS |
1528 | |
1529 | strcpy (uns, "unsigned "); | |
1530 | strcpy (uns + 9, name); | |
e6c014f2 | 1531 | return lookup_typename (language, gdbarch, uns, (struct block *) NULL, 0); |
c906108c SS |
1532 | } |
1533 | ||
1534 | struct type * | |
e6c014f2 | 1535 | lookup_signed_typename (const struct language_defn *language, |
0d5cff50 | 1536 | struct gdbarch *gdbarch, const char *name) |
c906108c SS |
1537 | { |
1538 | struct type *t; | |
224c3ddb | 1539 | char *uns = (char *) alloca (strlen (name) + 8); |
c906108c SS |
1540 | |
1541 | strcpy (uns, "signed "); | |
1542 | strcpy (uns + 7, name); | |
e6c014f2 | 1543 | t = lookup_typename (language, gdbarch, uns, (struct block *) NULL, 1); |
7ba81444 | 1544 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
c906108c SS |
1545 | if (t != NULL) |
1546 | return t; | |
e6c014f2 | 1547 | return lookup_typename (language, gdbarch, name, (struct block *) NULL, 0); |
c906108c SS |
1548 | } |
1549 | ||
1550 | /* Lookup a structure type named "struct NAME", | |
1551 | visible in lexical block BLOCK. */ | |
1552 | ||
1553 | struct type * | |
270140bd | 1554 | lookup_struct (const char *name, const struct block *block) |
c906108c | 1555 | { |
52f0bd74 | 1556 | struct symbol *sym; |
c906108c | 1557 | |
d12307c1 | 1558 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1559 | |
1560 | if (sym == NULL) | |
1561 | { | |
8a3fe4f8 | 1562 | error (_("No struct type named %s."), name); |
c906108c SS |
1563 | } |
1564 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1565 | { | |
7ba81444 MS |
1566 | error (_("This context has class, union or enum %s, not a struct."), |
1567 | name); | |
c906108c SS |
1568 | } |
1569 | return (SYMBOL_TYPE (sym)); | |
1570 | } | |
1571 | ||
1572 | /* Lookup a union type named "union NAME", | |
1573 | visible in lexical block BLOCK. */ | |
1574 | ||
1575 | struct type * | |
270140bd | 1576 | lookup_union (const char *name, const struct block *block) |
c906108c | 1577 | { |
52f0bd74 | 1578 | struct symbol *sym; |
c5aa993b | 1579 | struct type *t; |
c906108c | 1580 | |
d12307c1 | 1581 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1582 | |
1583 | if (sym == NULL) | |
8a3fe4f8 | 1584 | error (_("No union type named %s."), name); |
c906108c | 1585 | |
c5aa993b | 1586 | t = SYMBOL_TYPE (sym); |
c906108c SS |
1587 | |
1588 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
c16abbde | 1589 | return t; |
c906108c | 1590 | |
7ba81444 MS |
1591 | /* If we get here, it's not a union. */ |
1592 | error (_("This context has class, struct or enum %s, not a union."), | |
1593 | name); | |
c906108c SS |
1594 | } |
1595 | ||
c906108c SS |
1596 | /* Lookup an enum type named "enum NAME", |
1597 | visible in lexical block BLOCK. */ | |
1598 | ||
1599 | struct type * | |
270140bd | 1600 | lookup_enum (const char *name, const struct block *block) |
c906108c | 1601 | { |
52f0bd74 | 1602 | struct symbol *sym; |
c906108c | 1603 | |
d12307c1 | 1604 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1605 | if (sym == NULL) |
1606 | { | |
8a3fe4f8 | 1607 | error (_("No enum type named %s."), name); |
c906108c SS |
1608 | } |
1609 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
1610 | { | |
7ba81444 MS |
1611 | error (_("This context has class, struct or union %s, not an enum."), |
1612 | name); | |
c906108c SS |
1613 | } |
1614 | return (SYMBOL_TYPE (sym)); | |
1615 | } | |
1616 | ||
1617 | /* Lookup a template type named "template NAME<TYPE>", | |
1618 | visible in lexical block BLOCK. */ | |
1619 | ||
1620 | struct type * | |
7ba81444 | 1621 | lookup_template_type (char *name, struct type *type, |
270140bd | 1622 | const struct block *block) |
c906108c SS |
1623 | { |
1624 | struct symbol *sym; | |
7ba81444 MS |
1625 | char *nam = (char *) |
1626 | alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4); | |
d8734c88 | 1627 | |
c906108c SS |
1628 | strcpy (nam, name); |
1629 | strcat (nam, "<"); | |
0004e5a2 | 1630 | strcat (nam, TYPE_NAME (type)); |
0963b4bd | 1631 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1632 | |
d12307c1 | 1633 | sym = lookup_symbol (nam, block, VAR_DOMAIN, 0).symbol; |
c906108c SS |
1634 | |
1635 | if (sym == NULL) | |
1636 | { | |
8a3fe4f8 | 1637 | error (_("No template type named %s."), name); |
c906108c SS |
1638 | } |
1639 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1640 | { | |
7ba81444 MS |
1641 | error (_("This context has class, union or enum %s, not a struct."), |
1642 | name); | |
c906108c SS |
1643 | } |
1644 | return (SYMBOL_TYPE (sym)); | |
1645 | } | |
1646 | ||
7ba81444 MS |
1647 | /* Given a type TYPE, lookup the type of the component of type named |
1648 | NAME. | |
c906108c | 1649 | |
7ba81444 MS |
1650 | TYPE can be either a struct or union, or a pointer or reference to |
1651 | a struct or union. If it is a pointer or reference, its target | |
1652 | type is automatically used. Thus '.' and '->' are interchangable, | |
1653 | as specified for the definitions of the expression element types | |
1654 | STRUCTOP_STRUCT and STRUCTOP_PTR. | |
c906108c SS |
1655 | |
1656 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
1657 | If NAME is the name of a baseclass type, return that type. */ | |
1658 | ||
1659 | struct type * | |
d7561cbb | 1660 | lookup_struct_elt_type (struct type *type, const char *name, int noerr) |
c906108c SS |
1661 | { |
1662 | int i; | |
1663 | ||
1664 | for (;;) | |
1665 | { | |
f168693b | 1666 | type = check_typedef (type); |
c906108c SS |
1667 | if (TYPE_CODE (type) != TYPE_CODE_PTR |
1668 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1669 | break; | |
1670 | type = TYPE_TARGET_TYPE (type); | |
1671 | } | |
1672 | ||
687d6395 MS |
1673 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
1674 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
c906108c | 1675 | { |
2f408ecb PA |
1676 | std::string type_name = type_to_string (type); |
1677 | error (_("Type %s is not a structure or union type."), | |
1678 | type_name.c_str ()); | |
c906108c SS |
1679 | } |
1680 | ||
1681 | #if 0 | |
7ba81444 MS |
1682 | /* FIXME: This change put in by Michael seems incorrect for the case |
1683 | where the structure tag name is the same as the member name. | |
0963b4bd | 1684 | I.e. when doing "ptype bell->bar" for "struct foo { int bar; int |
7ba81444 | 1685 | foo; } bell;" Disabled by fnf. */ |
c906108c | 1686 | { |
fe978cb0 | 1687 | char *type_name; |
c906108c | 1688 | |
a737d952 | 1689 | type_name = TYPE_NAME (type); |
fe978cb0 | 1690 | if (type_name != NULL && strcmp (type_name, name) == 0) |
c906108c SS |
1691 | return type; |
1692 | } | |
1693 | #endif | |
1694 | ||
1695 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1696 | { | |
0d5cff50 | 1697 | const char *t_field_name = TYPE_FIELD_NAME (type, i); |
c906108c | 1698 | |
db577aea | 1699 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c SS |
1700 | { |
1701 | return TYPE_FIELD_TYPE (type, i); | |
1702 | } | |
f5a010c0 PM |
1703 | else if (!t_field_name || *t_field_name == '\0') |
1704 | { | |
d8734c88 MS |
1705 | struct type *subtype |
1706 | = lookup_struct_elt_type (TYPE_FIELD_TYPE (type, i), name, 1); | |
1707 | ||
f5a010c0 PM |
1708 | if (subtype != NULL) |
1709 | return subtype; | |
1710 | } | |
c906108c SS |
1711 | } |
1712 | ||
1713 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1714 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1715 | { | |
1716 | struct type *t; | |
1717 | ||
9733fc94 | 1718 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 1); |
c906108c SS |
1719 | if (t != NULL) |
1720 | { | |
1721 | return t; | |
1722 | } | |
1723 | } | |
1724 | ||
1725 | if (noerr) | |
1726 | { | |
1727 | return NULL; | |
1728 | } | |
c5aa993b | 1729 | |
2f408ecb PA |
1730 | std::string type_name = type_to_string (type); |
1731 | error (_("Type %s has no component named %s."), type_name.c_str (), name); | |
c906108c SS |
1732 | } |
1733 | ||
ed3ef339 DE |
1734 | /* Store in *MAX the largest number representable by unsigned integer type |
1735 | TYPE. */ | |
1736 | ||
1737 | void | |
1738 | get_unsigned_type_max (struct type *type, ULONGEST *max) | |
1739 | { | |
1740 | unsigned int n; | |
1741 | ||
f168693b | 1742 | type = check_typedef (type); |
ed3ef339 DE |
1743 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && TYPE_UNSIGNED (type)); |
1744 | gdb_assert (TYPE_LENGTH (type) <= sizeof (ULONGEST)); | |
1745 | ||
1746 | /* Written this way to avoid overflow. */ | |
1747 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1748 | *max = ((((ULONGEST) 1 << (n - 1)) - 1) << 1) | 1; | |
1749 | } | |
1750 | ||
1751 | /* Store in *MIN, *MAX the smallest and largest numbers representable by | |
1752 | signed integer type TYPE. */ | |
1753 | ||
1754 | void | |
1755 | get_signed_type_minmax (struct type *type, LONGEST *min, LONGEST *max) | |
1756 | { | |
1757 | unsigned int n; | |
1758 | ||
f168693b | 1759 | type = check_typedef (type); |
ed3ef339 DE |
1760 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && !TYPE_UNSIGNED (type)); |
1761 | gdb_assert (TYPE_LENGTH (type) <= sizeof (LONGEST)); | |
1762 | ||
1763 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1764 | *min = -((ULONGEST) 1 << (n - 1)); | |
1765 | *max = ((ULONGEST) 1 << (n - 1)) - 1; | |
1766 | } | |
1767 | ||
ae6ae975 DE |
1768 | /* Internal routine called by TYPE_VPTR_FIELDNO to return the value of |
1769 | cplus_stuff.vptr_fieldno. | |
1770 | ||
1771 | cplus_stuff is initialized to cplus_struct_default which does not | |
1772 | set vptr_fieldno to -1 for portability reasons (IWBN to use C99 | |
1773 | designated initializers). We cope with that here. */ | |
1774 | ||
1775 | int | |
1776 | internal_type_vptr_fieldno (struct type *type) | |
1777 | { | |
f168693b | 1778 | type = check_typedef (type); |
ae6ae975 DE |
1779 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1780 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1781 | if (!HAVE_CPLUS_STRUCT (type)) | |
1782 | return -1; | |
1783 | return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno; | |
1784 | } | |
1785 | ||
1786 | /* Set the value of cplus_stuff.vptr_fieldno. */ | |
1787 | ||
1788 | void | |
1789 | set_type_vptr_fieldno (struct type *type, int fieldno) | |
1790 | { | |
f168693b | 1791 | type = check_typedef (type); |
ae6ae975 DE |
1792 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1793 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1794 | if (!HAVE_CPLUS_STRUCT (type)) | |
1795 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
1796 | TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno = fieldno; | |
1797 | } | |
1798 | ||
1799 | /* Internal routine called by TYPE_VPTR_BASETYPE to return the value of | |
1800 | cplus_stuff.vptr_basetype. */ | |
1801 | ||
1802 | struct type * | |
1803 | internal_type_vptr_basetype (struct type *type) | |
1804 | { | |
f168693b | 1805 | type = check_typedef (type); |
ae6ae975 DE |
1806 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1807 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1808 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF); | |
1809 | return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype; | |
1810 | } | |
1811 | ||
1812 | /* Set the value of cplus_stuff.vptr_basetype. */ | |
1813 | ||
1814 | void | |
1815 | set_type_vptr_basetype (struct type *type, struct type *basetype) | |
1816 | { | |
f168693b | 1817 | type = check_typedef (type); |
ae6ae975 DE |
1818 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1819 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1820 | if (!HAVE_CPLUS_STRUCT (type)) | |
1821 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
1822 | TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype = basetype; | |
1823 | } | |
1824 | ||
81fe8080 DE |
1825 | /* Lookup the vptr basetype/fieldno values for TYPE. |
1826 | If found store vptr_basetype in *BASETYPEP if non-NULL, and return | |
1827 | vptr_fieldno. Also, if found and basetype is from the same objfile, | |
1828 | cache the results. | |
1829 | If not found, return -1 and ignore BASETYPEP. | |
1830 | Callers should be aware that in some cases (for example, | |
c906108c | 1831 | the type or one of its baseclasses is a stub type and we are |
d48cc9dd DJ |
1832 | debugging a .o file, or the compiler uses DWARF-2 and is not GCC), |
1833 | this function will not be able to find the | |
7ba81444 | 1834 | virtual function table pointer, and vptr_fieldno will remain -1 and |
81fe8080 | 1835 | vptr_basetype will remain NULL or incomplete. */ |
c906108c | 1836 | |
81fe8080 DE |
1837 | int |
1838 | get_vptr_fieldno (struct type *type, struct type **basetypep) | |
c906108c | 1839 | { |
f168693b | 1840 | type = check_typedef (type); |
c906108c SS |
1841 | |
1842 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1843 | { | |
1844 | int i; | |
1845 | ||
7ba81444 MS |
1846 | /* We must start at zero in case the first (and only) baseclass |
1847 | is virtual (and hence we cannot share the table pointer). */ | |
c906108c SS |
1848 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1849 | { | |
81fe8080 DE |
1850 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
1851 | int fieldno; | |
1852 | struct type *basetype; | |
1853 | ||
1854 | fieldno = get_vptr_fieldno (baseclass, &basetype); | |
1855 | if (fieldno >= 0) | |
c906108c | 1856 | { |
81fe8080 | 1857 | /* If the type comes from a different objfile we can't cache |
0963b4bd | 1858 | it, it may have a different lifetime. PR 2384 */ |
5ef73790 | 1859 | if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype)) |
81fe8080 | 1860 | { |
ae6ae975 DE |
1861 | set_type_vptr_fieldno (type, fieldno); |
1862 | set_type_vptr_basetype (type, basetype); | |
81fe8080 DE |
1863 | } |
1864 | if (basetypep) | |
1865 | *basetypep = basetype; | |
1866 | return fieldno; | |
c906108c SS |
1867 | } |
1868 | } | |
81fe8080 DE |
1869 | |
1870 | /* Not found. */ | |
1871 | return -1; | |
1872 | } | |
1873 | else | |
1874 | { | |
1875 | if (basetypep) | |
1876 | *basetypep = TYPE_VPTR_BASETYPE (type); | |
1877 | return TYPE_VPTR_FIELDNO (type); | |
c906108c SS |
1878 | } |
1879 | } | |
1880 | ||
44e1a9eb DJ |
1881 | static void |
1882 | stub_noname_complaint (void) | |
1883 | { | |
b98664d3 | 1884 | complaint (_("stub type has NULL name")); |
44e1a9eb DJ |
1885 | } |
1886 | ||
a405673c JB |
1887 | /* Return nonzero if TYPE has a DYN_PROP_BYTE_STRIDE dynamic property |
1888 | attached to it, and that property has a non-constant value. */ | |
1889 | ||
1890 | static int | |
1891 | array_type_has_dynamic_stride (struct type *type) | |
1892 | { | |
1893 | struct dynamic_prop *prop = get_dyn_prop (DYN_PROP_BYTE_STRIDE, type); | |
1894 | ||
1895 | return (prop != NULL && prop->kind != PROP_CONST); | |
1896 | } | |
1897 | ||
d98b7a16 | 1898 | /* Worker for is_dynamic_type. */ |
80180f79 | 1899 | |
d98b7a16 | 1900 | static int |
ee715b5a | 1901 | is_dynamic_type_internal (struct type *type, int top_level) |
80180f79 SA |
1902 | { |
1903 | type = check_typedef (type); | |
1904 | ||
e771e4be PMR |
1905 | /* We only want to recognize references at the outermost level. */ |
1906 | if (top_level && TYPE_CODE (type) == TYPE_CODE_REF) | |
1907 | type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1908 | ||
3cdcd0ce JB |
1909 | /* Types that have a dynamic TYPE_DATA_LOCATION are considered |
1910 | dynamic, even if the type itself is statically defined. | |
1911 | From a user's point of view, this may appear counter-intuitive; | |
1912 | but it makes sense in this context, because the point is to determine | |
1913 | whether any part of the type needs to be resolved before it can | |
1914 | be exploited. */ | |
1915 | if (TYPE_DATA_LOCATION (type) != NULL | |
1916 | && (TYPE_DATA_LOCATION_KIND (type) == PROP_LOCEXPR | |
1917 | || TYPE_DATA_LOCATION_KIND (type) == PROP_LOCLIST)) | |
1918 | return 1; | |
1919 | ||
3f2f83dd KB |
1920 | if (TYPE_ASSOCIATED_PROP (type)) |
1921 | return 1; | |
1922 | ||
1923 | if (TYPE_ALLOCATED_PROP (type)) | |
1924 | return 1; | |
1925 | ||
80180f79 SA |
1926 | switch (TYPE_CODE (type)) |
1927 | { | |
6f8a3220 | 1928 | case TYPE_CODE_RANGE: |
ddb87a81 JB |
1929 | { |
1930 | /* A range type is obviously dynamic if it has at least one | |
1931 | dynamic bound. But also consider the range type to be | |
1932 | dynamic when its subtype is dynamic, even if the bounds | |
1933 | of the range type are static. It allows us to assume that | |
1934 | the subtype of a static range type is also static. */ | |
1935 | return (!has_static_range (TYPE_RANGE_DATA (type)) | |
ee715b5a | 1936 | || is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0)); |
ddb87a81 | 1937 | } |
6f8a3220 | 1938 | |
80180f79 SA |
1939 | case TYPE_CODE_ARRAY: |
1940 | { | |
80180f79 | 1941 | gdb_assert (TYPE_NFIELDS (type) == 1); |
6f8a3220 | 1942 | |
a405673c | 1943 | /* The array is dynamic if either the bounds are dynamic... */ |
ee715b5a | 1944 | if (is_dynamic_type_internal (TYPE_INDEX_TYPE (type), 0)) |
80180f79 | 1945 | return 1; |
a405673c JB |
1946 | /* ... or the elements it contains have a dynamic contents... */ |
1947 | if (is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0)) | |
1948 | return 1; | |
1949 | /* ... or if it has a dynamic stride... */ | |
1950 | if (array_type_has_dynamic_stride (type)) | |
1951 | return 1; | |
1952 | return 0; | |
80180f79 | 1953 | } |
012370f6 TT |
1954 | |
1955 | case TYPE_CODE_STRUCT: | |
1956 | case TYPE_CODE_UNION: | |
1957 | { | |
1958 | int i; | |
1959 | ||
1960 | for (i = 0; i < TYPE_NFIELDS (type); ++i) | |
1961 | if (!field_is_static (&TYPE_FIELD (type, i)) | |
ee715b5a | 1962 | && is_dynamic_type_internal (TYPE_FIELD_TYPE (type, i), 0)) |
012370f6 TT |
1963 | return 1; |
1964 | } | |
1965 | break; | |
80180f79 | 1966 | } |
92e2a17f TT |
1967 | |
1968 | return 0; | |
80180f79 SA |
1969 | } |
1970 | ||
d98b7a16 TT |
1971 | /* See gdbtypes.h. */ |
1972 | ||
1973 | int | |
1974 | is_dynamic_type (struct type *type) | |
1975 | { | |
ee715b5a | 1976 | return is_dynamic_type_internal (type, 1); |
d98b7a16 TT |
1977 | } |
1978 | ||
df25ebbd | 1979 | static struct type *resolve_dynamic_type_internal |
ee715b5a | 1980 | (struct type *type, struct property_addr_info *addr_stack, int top_level); |
d98b7a16 | 1981 | |
df25ebbd JB |
1982 | /* Given a dynamic range type (dyn_range_type) and a stack of |
1983 | struct property_addr_info elements, return a static version | |
1984 | of that type. */ | |
d190df30 | 1985 | |
80180f79 | 1986 | static struct type * |
df25ebbd JB |
1987 | resolve_dynamic_range (struct type *dyn_range_type, |
1988 | struct property_addr_info *addr_stack) | |
80180f79 SA |
1989 | { |
1990 | CORE_ADDR value; | |
ddb87a81 | 1991 | struct type *static_range_type, *static_target_type; |
80180f79 | 1992 | const struct dynamic_prop *prop; |
80180f79 SA |
1993 | struct dynamic_prop low_bound, high_bound; |
1994 | ||
6f8a3220 | 1995 | gdb_assert (TYPE_CODE (dyn_range_type) == TYPE_CODE_RANGE); |
80180f79 | 1996 | |
6f8a3220 | 1997 | prop = &TYPE_RANGE_DATA (dyn_range_type)->low; |
63e43d3a | 1998 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
80180f79 SA |
1999 | { |
2000 | low_bound.kind = PROP_CONST; | |
2001 | low_bound.data.const_val = value; | |
2002 | } | |
2003 | else | |
2004 | { | |
2005 | low_bound.kind = PROP_UNDEFINED; | |
2006 | low_bound.data.const_val = 0; | |
2007 | } | |
2008 | ||
6f8a3220 | 2009 | prop = &TYPE_RANGE_DATA (dyn_range_type)->high; |
63e43d3a | 2010 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
80180f79 SA |
2011 | { |
2012 | high_bound.kind = PROP_CONST; | |
2013 | high_bound.data.const_val = value; | |
c451ebe5 | 2014 | |
6f8a3220 | 2015 | if (TYPE_RANGE_DATA (dyn_range_type)->flag_upper_bound_is_count) |
c451ebe5 SA |
2016 | high_bound.data.const_val |
2017 | = low_bound.data.const_val + high_bound.data.const_val - 1; | |
80180f79 SA |
2018 | } |
2019 | else | |
2020 | { | |
2021 | high_bound.kind = PROP_UNDEFINED; | |
2022 | high_bound.data.const_val = 0; | |
2023 | } | |
2024 | ||
ddb87a81 JB |
2025 | static_target_type |
2026 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (dyn_range_type), | |
ee715b5a | 2027 | addr_stack, 0); |
6f8a3220 | 2028 | static_range_type = create_range_type (copy_type (dyn_range_type), |
ddb87a81 | 2029 | static_target_type, |
6f8a3220 JB |
2030 | &low_bound, &high_bound); |
2031 | TYPE_RANGE_DATA (static_range_type)->flag_bound_evaluated = 1; | |
2032 | return static_range_type; | |
2033 | } | |
2034 | ||
2035 | /* Resolves dynamic bound values of an array type TYPE to static ones. | |
df25ebbd JB |
2036 | ADDR_STACK is a stack of struct property_addr_info to be used |
2037 | if needed during the dynamic resolution. */ | |
6f8a3220 JB |
2038 | |
2039 | static struct type * | |
df25ebbd JB |
2040 | resolve_dynamic_array (struct type *type, |
2041 | struct property_addr_info *addr_stack) | |
6f8a3220 JB |
2042 | { |
2043 | CORE_ADDR value; | |
2044 | struct type *elt_type; | |
2045 | struct type *range_type; | |
2046 | struct type *ary_dim; | |
3f2f83dd | 2047 | struct dynamic_prop *prop; |
a405673c | 2048 | unsigned int bit_stride = 0; |
6f8a3220 JB |
2049 | |
2050 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
2051 | ||
3f2f83dd KB |
2052 | type = copy_type (type); |
2053 | ||
6f8a3220 JB |
2054 | elt_type = type; |
2055 | range_type = check_typedef (TYPE_INDEX_TYPE (elt_type)); | |
df25ebbd | 2056 | range_type = resolve_dynamic_range (range_type, addr_stack); |
6f8a3220 | 2057 | |
3f2f83dd KB |
2058 | /* Resolve allocated/associated here before creating a new array type, which |
2059 | will update the length of the array accordingly. */ | |
2060 | prop = TYPE_ALLOCATED_PROP (type); | |
2061 | if (prop != NULL && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
2062 | { | |
2063 | TYPE_DYN_PROP_ADDR (prop) = value; | |
2064 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
2065 | } | |
2066 | prop = TYPE_ASSOCIATED_PROP (type); | |
2067 | if (prop != NULL && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
2068 | { | |
2069 | TYPE_DYN_PROP_ADDR (prop) = value; | |
2070 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
2071 | } | |
2072 | ||
80180f79 SA |
2073 | ary_dim = check_typedef (TYPE_TARGET_TYPE (elt_type)); |
2074 | ||
2075 | if (ary_dim != NULL && TYPE_CODE (ary_dim) == TYPE_CODE_ARRAY) | |
d0d84780 | 2076 | elt_type = resolve_dynamic_array (ary_dim, addr_stack); |
80180f79 SA |
2077 | else |
2078 | elt_type = TYPE_TARGET_TYPE (type); | |
2079 | ||
a405673c JB |
2080 | prop = get_dyn_prop (DYN_PROP_BYTE_STRIDE, type); |
2081 | if (prop != NULL) | |
2082 | { | |
2083 | int prop_eval_ok | |
2084 | = dwarf2_evaluate_property (prop, NULL, addr_stack, &value); | |
2085 | ||
2086 | if (prop_eval_ok) | |
2087 | { | |
2088 | remove_dyn_prop (DYN_PROP_BYTE_STRIDE, type); | |
2089 | bit_stride = (unsigned int) (value * 8); | |
2090 | } | |
2091 | else | |
2092 | { | |
2093 | /* Could be a bug in our code, but it could also happen | |
2094 | if the DWARF info is not correct. Issue a warning, | |
2095 | and assume no byte/bit stride (leave bit_stride = 0). */ | |
2096 | warning (_("cannot determine array stride for type %s"), | |
2097 | TYPE_NAME (type) ? TYPE_NAME (type) : "<no name>"); | |
2098 | } | |
2099 | } | |
2100 | else | |
2101 | bit_stride = TYPE_FIELD_BITSIZE (type, 0); | |
2102 | ||
2103 | return create_array_type_with_stride (type, elt_type, range_type, NULL, | |
2104 | bit_stride); | |
80180f79 SA |
2105 | } |
2106 | ||
012370f6 | 2107 | /* Resolve dynamic bounds of members of the union TYPE to static |
df25ebbd JB |
2108 | bounds. ADDR_STACK is a stack of struct property_addr_info |
2109 | to be used if needed during the dynamic resolution. */ | |
012370f6 TT |
2110 | |
2111 | static struct type * | |
df25ebbd JB |
2112 | resolve_dynamic_union (struct type *type, |
2113 | struct property_addr_info *addr_stack) | |
012370f6 TT |
2114 | { |
2115 | struct type *resolved_type; | |
2116 | int i; | |
2117 | unsigned int max_len = 0; | |
2118 | ||
2119 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_UNION); | |
2120 | ||
2121 | resolved_type = copy_type (type); | |
2122 | TYPE_FIELDS (resolved_type) | |
224c3ddb SM |
2123 | = (struct field *) TYPE_ALLOC (resolved_type, |
2124 | TYPE_NFIELDS (resolved_type) | |
2125 | * sizeof (struct field)); | |
012370f6 TT |
2126 | memcpy (TYPE_FIELDS (resolved_type), |
2127 | TYPE_FIELDS (type), | |
2128 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
2129 | for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i) | |
2130 | { | |
2131 | struct type *t; | |
2132 | ||
2133 | if (field_is_static (&TYPE_FIELD (type, i))) | |
2134 | continue; | |
2135 | ||
d98b7a16 | 2136 | t = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i), |
ee715b5a | 2137 | addr_stack, 0); |
012370f6 TT |
2138 | TYPE_FIELD_TYPE (resolved_type, i) = t; |
2139 | if (TYPE_LENGTH (t) > max_len) | |
2140 | max_len = TYPE_LENGTH (t); | |
2141 | } | |
2142 | ||
2143 | TYPE_LENGTH (resolved_type) = max_len; | |
2144 | return resolved_type; | |
2145 | } | |
2146 | ||
2147 | /* Resolve dynamic bounds of members of the struct TYPE to static | |
df25ebbd JB |
2148 | bounds. ADDR_STACK is a stack of struct property_addr_info to |
2149 | be used if needed during the dynamic resolution. */ | |
012370f6 TT |
2150 | |
2151 | static struct type * | |
df25ebbd JB |
2152 | resolve_dynamic_struct (struct type *type, |
2153 | struct property_addr_info *addr_stack) | |
012370f6 TT |
2154 | { |
2155 | struct type *resolved_type; | |
2156 | int i; | |
6908c509 | 2157 | unsigned resolved_type_bit_length = 0; |
012370f6 TT |
2158 | |
2159 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT); | |
2160 | gdb_assert (TYPE_NFIELDS (type) > 0); | |
2161 | ||
2162 | resolved_type = copy_type (type); | |
2163 | TYPE_FIELDS (resolved_type) | |
224c3ddb SM |
2164 | = (struct field *) TYPE_ALLOC (resolved_type, |
2165 | TYPE_NFIELDS (resolved_type) | |
2166 | * sizeof (struct field)); | |
012370f6 TT |
2167 | memcpy (TYPE_FIELDS (resolved_type), |
2168 | TYPE_FIELDS (type), | |
2169 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
2170 | for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i) | |
2171 | { | |
6908c509 | 2172 | unsigned new_bit_length; |
df25ebbd | 2173 | struct property_addr_info pinfo; |
012370f6 TT |
2174 | |
2175 | if (field_is_static (&TYPE_FIELD (type, i))) | |
2176 | continue; | |
2177 | ||
6908c509 JB |
2178 | /* As we know this field is not a static field, the field's |
2179 | field_loc_kind should be FIELD_LOC_KIND_BITPOS. Verify | |
2180 | this is the case, but only trigger a simple error rather | |
2181 | than an internal error if that fails. While failing | |
2182 | that verification indicates a bug in our code, the error | |
2183 | is not severe enough to suggest to the user he stops | |
2184 | his debugging session because of it. */ | |
df25ebbd | 2185 | if (TYPE_FIELD_LOC_KIND (type, i) != FIELD_LOC_KIND_BITPOS) |
6908c509 JB |
2186 | error (_("Cannot determine struct field location" |
2187 | " (invalid location kind)")); | |
df25ebbd JB |
2188 | |
2189 | pinfo.type = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
c3345124 | 2190 | pinfo.valaddr = addr_stack->valaddr; |
9920b434 BH |
2191 | pinfo.addr |
2192 | = (addr_stack->addr | |
2193 | + (TYPE_FIELD_BITPOS (resolved_type, i) / TARGET_CHAR_BIT)); | |
df25ebbd JB |
2194 | pinfo.next = addr_stack; |
2195 | ||
2196 | TYPE_FIELD_TYPE (resolved_type, i) | |
2197 | = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i), | |
ee715b5a | 2198 | &pinfo, 0); |
df25ebbd JB |
2199 | gdb_assert (TYPE_FIELD_LOC_KIND (resolved_type, i) |
2200 | == FIELD_LOC_KIND_BITPOS); | |
2201 | ||
6908c509 JB |
2202 | new_bit_length = TYPE_FIELD_BITPOS (resolved_type, i); |
2203 | if (TYPE_FIELD_BITSIZE (resolved_type, i) != 0) | |
2204 | new_bit_length += TYPE_FIELD_BITSIZE (resolved_type, i); | |
2205 | else | |
2206 | new_bit_length += (TYPE_LENGTH (TYPE_FIELD_TYPE (resolved_type, i)) | |
2207 | * TARGET_CHAR_BIT); | |
2208 | ||
2209 | /* Normally, we would use the position and size of the last field | |
2210 | to determine the size of the enclosing structure. But GCC seems | |
2211 | to be encoding the position of some fields incorrectly when | |
2212 | the struct contains a dynamic field that is not placed last. | |
2213 | So we compute the struct size based on the field that has | |
2214 | the highest position + size - probably the best we can do. */ | |
2215 | if (new_bit_length > resolved_type_bit_length) | |
2216 | resolved_type_bit_length = new_bit_length; | |
012370f6 TT |
2217 | } |
2218 | ||
9920b434 BH |
2219 | /* The length of a type won't change for fortran, but it does for C and Ada. |
2220 | For fortran the size of dynamic fields might change over time but not the | |
2221 | type length of the structure. If we adapt it, we run into problems | |
2222 | when calculating the element offset for arrays of structs. */ | |
2223 | if (current_language->la_language != language_fortran) | |
2224 | TYPE_LENGTH (resolved_type) | |
2225 | = (resolved_type_bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
6908c509 | 2226 | |
9e195661 PMR |
2227 | /* The Ada language uses this field as a cache for static fixed types: reset |
2228 | it as RESOLVED_TYPE must have its own static fixed type. */ | |
2229 | TYPE_TARGET_TYPE (resolved_type) = NULL; | |
2230 | ||
012370f6 TT |
2231 | return resolved_type; |
2232 | } | |
2233 | ||
d98b7a16 | 2234 | /* Worker for resolved_dynamic_type. */ |
80180f79 | 2235 | |
d98b7a16 | 2236 | static struct type * |
df25ebbd | 2237 | resolve_dynamic_type_internal (struct type *type, |
ee715b5a PMR |
2238 | struct property_addr_info *addr_stack, |
2239 | int top_level) | |
80180f79 SA |
2240 | { |
2241 | struct type *real_type = check_typedef (type); | |
6f8a3220 | 2242 | struct type *resolved_type = type; |
d9823cbb | 2243 | struct dynamic_prop *prop; |
3cdcd0ce | 2244 | CORE_ADDR value; |
80180f79 | 2245 | |
ee715b5a | 2246 | if (!is_dynamic_type_internal (real_type, top_level)) |
80180f79 SA |
2247 | return type; |
2248 | ||
5537b577 | 2249 | if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
6f8a3220 | 2250 | { |
cac9b138 JK |
2251 | resolved_type = copy_type (type); |
2252 | TYPE_TARGET_TYPE (resolved_type) | |
ee715b5a PMR |
2253 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), addr_stack, |
2254 | top_level); | |
5537b577 JK |
2255 | } |
2256 | else | |
2257 | { | |
2258 | /* Before trying to resolve TYPE, make sure it is not a stub. */ | |
2259 | type = real_type; | |
012370f6 | 2260 | |
5537b577 JK |
2261 | switch (TYPE_CODE (type)) |
2262 | { | |
e771e4be PMR |
2263 | case TYPE_CODE_REF: |
2264 | { | |
2265 | struct property_addr_info pinfo; | |
2266 | ||
2267 | pinfo.type = check_typedef (TYPE_TARGET_TYPE (type)); | |
c3345124 JB |
2268 | pinfo.valaddr = NULL; |
2269 | if (addr_stack->valaddr != NULL) | |
2270 | pinfo.addr = extract_typed_address (addr_stack->valaddr, type); | |
2271 | else | |
2272 | pinfo.addr = read_memory_typed_address (addr_stack->addr, type); | |
e771e4be PMR |
2273 | pinfo.next = addr_stack; |
2274 | ||
2275 | resolved_type = copy_type (type); | |
2276 | TYPE_TARGET_TYPE (resolved_type) | |
2277 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), | |
2278 | &pinfo, top_level); | |
2279 | break; | |
2280 | } | |
2281 | ||
5537b577 | 2282 | case TYPE_CODE_ARRAY: |
df25ebbd | 2283 | resolved_type = resolve_dynamic_array (type, addr_stack); |
5537b577 JK |
2284 | break; |
2285 | ||
2286 | case TYPE_CODE_RANGE: | |
df25ebbd | 2287 | resolved_type = resolve_dynamic_range (type, addr_stack); |
5537b577 JK |
2288 | break; |
2289 | ||
2290 | case TYPE_CODE_UNION: | |
df25ebbd | 2291 | resolved_type = resolve_dynamic_union (type, addr_stack); |
5537b577 JK |
2292 | break; |
2293 | ||
2294 | case TYPE_CODE_STRUCT: | |
df25ebbd | 2295 | resolved_type = resolve_dynamic_struct (type, addr_stack); |
5537b577 JK |
2296 | break; |
2297 | } | |
6f8a3220 | 2298 | } |
80180f79 | 2299 | |
3cdcd0ce JB |
2300 | /* Resolve data_location attribute. */ |
2301 | prop = TYPE_DATA_LOCATION (resolved_type); | |
63e43d3a PMR |
2302 | if (prop != NULL |
2303 | && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
3cdcd0ce | 2304 | { |
d9823cbb KB |
2305 | TYPE_DYN_PROP_ADDR (prop) = value; |
2306 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
3cdcd0ce | 2307 | } |
3cdcd0ce | 2308 | |
80180f79 SA |
2309 | return resolved_type; |
2310 | } | |
2311 | ||
d98b7a16 TT |
2312 | /* See gdbtypes.h */ |
2313 | ||
2314 | struct type * | |
c3345124 JB |
2315 | resolve_dynamic_type (struct type *type, const gdb_byte *valaddr, |
2316 | CORE_ADDR addr) | |
d98b7a16 | 2317 | { |
c3345124 JB |
2318 | struct property_addr_info pinfo |
2319 | = {check_typedef (type), valaddr, addr, NULL}; | |
df25ebbd | 2320 | |
ee715b5a | 2321 | return resolve_dynamic_type_internal (type, &pinfo, 1); |
d98b7a16 TT |
2322 | } |
2323 | ||
d9823cbb KB |
2324 | /* See gdbtypes.h */ |
2325 | ||
2326 | struct dynamic_prop * | |
2327 | get_dyn_prop (enum dynamic_prop_node_kind prop_kind, const struct type *type) | |
2328 | { | |
2329 | struct dynamic_prop_list *node = TYPE_DYN_PROP_LIST (type); | |
2330 | ||
2331 | while (node != NULL) | |
2332 | { | |
2333 | if (node->prop_kind == prop_kind) | |
283a9958 | 2334 | return &node->prop; |
d9823cbb KB |
2335 | node = node->next; |
2336 | } | |
2337 | return NULL; | |
2338 | } | |
2339 | ||
2340 | /* See gdbtypes.h */ | |
2341 | ||
2342 | void | |
2343 | add_dyn_prop (enum dynamic_prop_node_kind prop_kind, struct dynamic_prop prop, | |
50a82047 | 2344 | struct type *type) |
d9823cbb KB |
2345 | { |
2346 | struct dynamic_prop_list *temp; | |
2347 | ||
2348 | gdb_assert (TYPE_OBJFILE_OWNED (type)); | |
2349 | ||
50a82047 TT |
2350 | temp = XOBNEW (&TYPE_OBJFILE (type)->objfile_obstack, |
2351 | struct dynamic_prop_list); | |
d9823cbb | 2352 | temp->prop_kind = prop_kind; |
283a9958 | 2353 | temp->prop = prop; |
d9823cbb KB |
2354 | temp->next = TYPE_DYN_PROP_LIST (type); |
2355 | ||
2356 | TYPE_DYN_PROP_LIST (type) = temp; | |
2357 | } | |
2358 | ||
9920b434 BH |
2359 | /* Remove dynamic property from TYPE in case it exists. */ |
2360 | ||
2361 | void | |
2362 | remove_dyn_prop (enum dynamic_prop_node_kind prop_kind, | |
2363 | struct type *type) | |
2364 | { | |
2365 | struct dynamic_prop_list *prev_node, *curr_node; | |
2366 | ||
2367 | curr_node = TYPE_DYN_PROP_LIST (type); | |
2368 | prev_node = NULL; | |
2369 | ||
2370 | while (NULL != curr_node) | |
2371 | { | |
2372 | if (curr_node->prop_kind == prop_kind) | |
2373 | { | |
2374 | /* Update the linked list but don't free anything. | |
2375 | The property was allocated on objstack and it is not known | |
2376 | if we are on top of it. Nevertheless, everything is released | |
2377 | when the complete objstack is freed. */ | |
2378 | if (NULL == prev_node) | |
2379 | TYPE_DYN_PROP_LIST (type) = curr_node->next; | |
2380 | else | |
2381 | prev_node->next = curr_node->next; | |
2382 | ||
2383 | return; | |
2384 | } | |
2385 | ||
2386 | prev_node = curr_node; | |
2387 | curr_node = curr_node->next; | |
2388 | } | |
2389 | } | |
d9823cbb | 2390 | |
92163a10 JK |
2391 | /* Find the real type of TYPE. This function returns the real type, |
2392 | after removing all layers of typedefs, and completing opaque or stub | |
2393 | types. Completion changes the TYPE argument, but stripping of | |
2394 | typedefs does not. | |
2395 | ||
2396 | Instance flags (e.g. const/volatile) are preserved as typedefs are | |
2397 | stripped. If necessary a new qualified form of the underlying type | |
2398 | is created. | |
2399 | ||
2400 | NOTE: This will return a typedef if TYPE_TARGET_TYPE for the typedef has | |
2401 | not been computed and we're either in the middle of reading symbols, or | |
2402 | there was no name for the typedef in the debug info. | |
2403 | ||
9bc118a5 DE |
2404 | NOTE: Lookup of opaque types can throw errors for invalid symbol files. |
2405 | QUITs in the symbol reading code can also throw. | |
2406 | Thus this function can throw an exception. | |
2407 | ||
92163a10 JK |
2408 | If TYPE is a TYPE_CODE_TYPEDEF, its length is updated to the length of |
2409 | the target type. | |
c906108c SS |
2410 | |
2411 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
0963b4bd | 2412 | we can find a full definition in some other file. If so, copy this |
7ba81444 MS |
2413 | definition, so we can use it in future. There used to be a comment |
2414 | (but not any code) that if we don't find a full definition, we'd | |
2415 | set a flag so we don't spend time in the future checking the same | |
2416 | type. That would be a mistake, though--we might load in more | |
92163a10 | 2417 | symbols which contain a full definition for the type. */ |
c906108c SS |
2418 | |
2419 | struct type * | |
a02fd225 | 2420 | check_typedef (struct type *type) |
c906108c SS |
2421 | { |
2422 | struct type *orig_type = type; | |
92163a10 JK |
2423 | /* While we're removing typedefs, we don't want to lose qualifiers. |
2424 | E.g., const/volatile. */ | |
2425 | int instance_flags = TYPE_INSTANCE_FLAGS (type); | |
a02fd225 | 2426 | |
423c0af8 MS |
2427 | gdb_assert (type); |
2428 | ||
c906108c SS |
2429 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
2430 | { | |
2431 | if (!TYPE_TARGET_TYPE (type)) | |
2432 | { | |
0d5cff50 | 2433 | const char *name; |
c906108c SS |
2434 | struct symbol *sym; |
2435 | ||
2436 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 2437 | reading a symtab. Infinite recursion is one danger. */ |
c906108c | 2438 | if (currently_reading_symtab) |
92163a10 | 2439 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2440 | |
a737d952 | 2441 | name = TYPE_NAME (type); |
e86ca25f TT |
2442 | /* FIXME: shouldn't we look in STRUCT_DOMAIN and/or |
2443 | VAR_DOMAIN as appropriate? */ | |
c906108c SS |
2444 | if (name == NULL) |
2445 | { | |
23136709 | 2446 | stub_noname_complaint (); |
92163a10 | 2447 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2448 | } |
d12307c1 | 2449 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
2450 | if (sym) |
2451 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
7ba81444 | 2452 | else /* TYPE_CODE_UNDEF */ |
e9bb382b | 2453 | TYPE_TARGET_TYPE (type) = alloc_type_arch (get_type_arch (type)); |
c906108c SS |
2454 | } |
2455 | type = TYPE_TARGET_TYPE (type); | |
c906108c | 2456 | |
92163a10 JK |
2457 | /* Preserve the instance flags as we traverse down the typedef chain. |
2458 | ||
2459 | Handling address spaces/classes is nasty, what do we do if there's a | |
2460 | conflict? | |
2461 | E.g., what if an outer typedef marks the type as class_1 and an inner | |
2462 | typedef marks the type as class_2? | |
2463 | This is the wrong place to do such error checking. We leave it to | |
2464 | the code that created the typedef in the first place to flag the | |
2465 | error. We just pick the outer address space (akin to letting the | |
2466 | outer cast in a chain of casting win), instead of assuming | |
2467 | "it can't happen". */ | |
2468 | { | |
2469 | const int ALL_SPACES = (TYPE_INSTANCE_FLAG_CODE_SPACE | |
2470 | | TYPE_INSTANCE_FLAG_DATA_SPACE); | |
2471 | const int ALL_CLASSES = TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL; | |
2472 | int new_instance_flags = TYPE_INSTANCE_FLAGS (type); | |
2473 | ||
2474 | /* Treat code vs data spaces and address classes separately. */ | |
2475 | if ((instance_flags & ALL_SPACES) != 0) | |
2476 | new_instance_flags &= ~ALL_SPACES; | |
2477 | if ((instance_flags & ALL_CLASSES) != 0) | |
2478 | new_instance_flags &= ~ALL_CLASSES; | |
2479 | ||
2480 | instance_flags |= new_instance_flags; | |
2481 | } | |
2482 | } | |
a02fd225 | 2483 | |
7ba81444 MS |
2484 | /* If this is a struct/class/union with no fields, then check |
2485 | whether a full definition exists somewhere else. This is for | |
2486 | systems where a type definition with no fields is issued for such | |
2487 | types, instead of identifying them as stub types in the first | |
2488 | place. */ | |
c5aa993b | 2489 | |
7ba81444 MS |
2490 | if (TYPE_IS_OPAQUE (type) |
2491 | && opaque_type_resolution | |
2492 | && !currently_reading_symtab) | |
c906108c | 2493 | { |
a737d952 | 2494 | const char *name = TYPE_NAME (type); |
c5aa993b | 2495 | struct type *newtype; |
d8734c88 | 2496 | |
c906108c SS |
2497 | if (name == NULL) |
2498 | { | |
23136709 | 2499 | stub_noname_complaint (); |
92163a10 | 2500 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
2501 | } |
2502 | newtype = lookup_transparent_type (name); | |
ad766c0a | 2503 | |
c906108c | 2504 | if (newtype) |
ad766c0a | 2505 | { |
7ba81444 MS |
2506 | /* If the resolved type and the stub are in the same |
2507 | objfile, then replace the stub type with the real deal. | |
2508 | But if they're in separate objfiles, leave the stub | |
2509 | alone; we'll just look up the transparent type every time | |
2510 | we call check_typedef. We can't create pointers between | |
2511 | types allocated to different objfiles, since they may | |
2512 | have different lifetimes. Trying to copy NEWTYPE over to | |
2513 | TYPE's objfile is pointless, too, since you'll have to | |
2514 | move over any other types NEWTYPE refers to, which could | |
2515 | be an unbounded amount of stuff. */ | |
ad766c0a | 2516 | if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
92163a10 JK |
2517 | type = make_qualified_type (newtype, |
2518 | TYPE_INSTANCE_FLAGS (type), | |
2519 | type); | |
ad766c0a JB |
2520 | else |
2521 | type = newtype; | |
2522 | } | |
c906108c | 2523 | } |
7ba81444 MS |
2524 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
2525 | types. */ | |
74a9bb82 | 2526 | else if (TYPE_STUB (type) && !currently_reading_symtab) |
c906108c | 2527 | { |
a737d952 | 2528 | const char *name = TYPE_NAME (type); |
e86ca25f TT |
2529 | /* FIXME: shouldn't we look in STRUCT_DOMAIN and/or VAR_DOMAIN |
2530 | as appropriate? */ | |
c906108c | 2531 | struct symbol *sym; |
d8734c88 | 2532 | |
c906108c SS |
2533 | if (name == NULL) |
2534 | { | |
23136709 | 2535 | stub_noname_complaint (); |
92163a10 | 2536 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2537 | } |
d12307c1 | 2538 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0).symbol; |
c906108c | 2539 | if (sym) |
c26f2453 JB |
2540 | { |
2541 | /* Same as above for opaque types, we can replace the stub | |
92163a10 | 2542 | with the complete type only if they are in the same |
c26f2453 JB |
2543 | objfile. */ |
2544 | if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type)) | |
92163a10 JK |
2545 | type = make_qualified_type (SYMBOL_TYPE (sym), |
2546 | TYPE_INSTANCE_FLAGS (type), | |
2547 | type); | |
c26f2453 JB |
2548 | else |
2549 | type = SYMBOL_TYPE (sym); | |
2550 | } | |
c906108c SS |
2551 | } |
2552 | ||
74a9bb82 | 2553 | if (TYPE_TARGET_STUB (type)) |
c906108c | 2554 | { |
c906108c SS |
2555 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); |
2556 | ||
74a9bb82 | 2557 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
c5aa993b | 2558 | { |
73e2eb35 | 2559 | /* Nothing we can do. */ |
c5aa993b | 2560 | } |
c906108c SS |
2561 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
2562 | { | |
2563 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
876cecd0 | 2564 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
2565 | } |
2566 | } | |
92163a10 JK |
2567 | |
2568 | type = make_qualified_type (type, instance_flags, NULL); | |
2569 | ||
7ba81444 | 2570 | /* Cache TYPE_LENGTH for future use. */ |
c906108c | 2571 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
92163a10 | 2572 | |
c906108c SS |
2573 | return type; |
2574 | } | |
2575 | ||
7ba81444 | 2576 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
48319d1f | 2577 | occurs, silently return a void type. */ |
c91ecb25 | 2578 | |
b9362cc7 | 2579 | static struct type * |
48319d1f | 2580 | safe_parse_type (struct gdbarch *gdbarch, char *p, int length) |
c91ecb25 ND |
2581 | { |
2582 | struct ui_file *saved_gdb_stderr; | |
34365054 | 2583 | struct type *type = NULL; /* Initialize to keep gcc happy. */ |
c91ecb25 | 2584 | |
7ba81444 | 2585 | /* Suppress error messages. */ |
c91ecb25 | 2586 | saved_gdb_stderr = gdb_stderr; |
d7e74731 | 2587 | gdb_stderr = &null_stream; |
c91ecb25 | 2588 | |
7ba81444 | 2589 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
492d29ea | 2590 | TRY |
8e7b59a5 KS |
2591 | { |
2592 | type = parse_and_eval_type (p, length); | |
2593 | } | |
492d29ea PA |
2594 | CATCH (except, RETURN_MASK_ERROR) |
2595 | { | |
2596 | type = builtin_type (gdbarch)->builtin_void; | |
2597 | } | |
2598 | END_CATCH | |
c91ecb25 | 2599 | |
7ba81444 | 2600 | /* Stop suppressing error messages. */ |
c91ecb25 ND |
2601 | gdb_stderr = saved_gdb_stderr; |
2602 | ||
2603 | return type; | |
2604 | } | |
2605 | ||
c906108c SS |
2606 | /* Ugly hack to convert method stubs into method types. |
2607 | ||
7ba81444 MS |
2608 | He ain't kiddin'. This demangles the name of the method into a |
2609 | string including argument types, parses out each argument type, | |
2610 | generates a string casting a zero to that type, evaluates the | |
2611 | string, and stuffs the resulting type into an argtype vector!!! | |
2612 | Then it knows the type of the whole function (including argument | |
2613 | types for overloading), which info used to be in the stab's but was | |
2614 | removed to hack back the space required for them. */ | |
c906108c | 2615 | |
de17c821 | 2616 | static void |
fba45db2 | 2617 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c | 2618 | { |
50810684 | 2619 | struct gdbarch *gdbarch = get_type_arch (type); |
c906108c SS |
2620 | struct fn_field *f; |
2621 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
8de20a37 TT |
2622 | char *demangled_name = gdb_demangle (mangled_name, |
2623 | DMGL_PARAMS | DMGL_ANSI); | |
c906108c SS |
2624 | char *argtypetext, *p; |
2625 | int depth = 0, argcount = 1; | |
ad2f7632 | 2626 | struct field *argtypes; |
c906108c SS |
2627 | struct type *mtype; |
2628 | ||
2629 | /* Make sure we got back a function string that we can use. */ | |
2630 | if (demangled_name) | |
2631 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
2632 | else |
2633 | p = NULL; | |
c906108c SS |
2634 | |
2635 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
2636 | error (_("Internal: Cannot demangle mangled name `%s'."), |
2637 | mangled_name); | |
c906108c SS |
2638 | |
2639 | /* Now, read in the parameters that define this type. */ | |
2640 | p += 1; | |
2641 | argtypetext = p; | |
2642 | while (*p) | |
2643 | { | |
070ad9f0 | 2644 | if (*p == '(' || *p == '<') |
c906108c SS |
2645 | { |
2646 | depth += 1; | |
2647 | } | |
070ad9f0 | 2648 | else if (*p == ')' || *p == '>') |
c906108c SS |
2649 | { |
2650 | depth -= 1; | |
2651 | } | |
2652 | else if (*p == ',' && depth == 0) | |
2653 | { | |
2654 | argcount += 1; | |
2655 | } | |
2656 | ||
2657 | p += 1; | |
2658 | } | |
2659 | ||
ad2f7632 | 2660 | /* If we read one argument and it was ``void'', don't count it. */ |
61012eef | 2661 | if (startswith (argtypetext, "(void)")) |
ad2f7632 | 2662 | argcount -= 1; |
c906108c | 2663 | |
ad2f7632 DJ |
2664 | /* We need one extra slot, for the THIS pointer. */ |
2665 | ||
2666 | argtypes = (struct field *) | |
2667 | TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); | |
c906108c | 2668 | p = argtypetext; |
4a1970e4 DJ |
2669 | |
2670 | /* Add THIS pointer for non-static methods. */ | |
2671 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
2672 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
2673 | argcount = 0; | |
2674 | else | |
2675 | { | |
ad2f7632 | 2676 | argtypes[0].type = lookup_pointer_type (type); |
4a1970e4 DJ |
2677 | argcount = 1; |
2678 | } | |
c906108c | 2679 | |
0963b4bd | 2680 | if (*p != ')') /* () means no args, skip while. */ |
c906108c SS |
2681 | { |
2682 | depth = 0; | |
2683 | while (*p) | |
2684 | { | |
2685 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
2686 | { | |
ad2f7632 DJ |
2687 | /* Avoid parsing of ellipsis, they will be handled below. |
2688 | Also avoid ``void'' as above. */ | |
2689 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 | |
2690 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 2691 | { |
ad2f7632 | 2692 | argtypes[argcount].type = |
48319d1f | 2693 | safe_parse_type (gdbarch, argtypetext, p - argtypetext); |
c906108c SS |
2694 | argcount += 1; |
2695 | } | |
2696 | argtypetext = p + 1; | |
2697 | } | |
2698 | ||
070ad9f0 | 2699 | if (*p == '(' || *p == '<') |
c906108c SS |
2700 | { |
2701 | depth += 1; | |
2702 | } | |
070ad9f0 | 2703 | else if (*p == ')' || *p == '>') |
c906108c SS |
2704 | { |
2705 | depth -= 1; | |
2706 | } | |
2707 | ||
2708 | p += 1; | |
2709 | } | |
2710 | } | |
2711 | ||
c906108c SS |
2712 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
2713 | ||
2714 | /* Now update the old "stub" type into a real type. */ | |
2715 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
09e2d7c7 DE |
2716 | /* MTYPE may currently be a function (TYPE_CODE_FUNC). |
2717 | We want a method (TYPE_CODE_METHOD). */ | |
2718 | smash_to_method_type (mtype, type, TYPE_TARGET_TYPE (mtype), | |
2719 | argtypes, argcount, p[-2] == '.'); | |
876cecd0 | 2720 | TYPE_STUB (mtype) = 0; |
c906108c | 2721 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
ad2f7632 DJ |
2722 | |
2723 | xfree (demangled_name); | |
c906108c SS |
2724 | } |
2725 | ||
7ba81444 MS |
2726 | /* This is the external interface to check_stub_method, above. This |
2727 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
2728 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
2729 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
2730 | correct. | |
de17c821 DJ |
2731 | |
2732 | This function unfortunately can not die until stabs do. */ | |
2733 | ||
2734 | void | |
2735 | check_stub_method_group (struct type *type, int method_id) | |
2736 | { | |
2737 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
2738 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
f710f4fc | 2739 | int j, found_stub = 0; |
de17c821 DJ |
2740 | |
2741 | for (j = 0; j < len; j++) | |
2742 | if (TYPE_FN_FIELD_STUB (f, j)) | |
2743 | { | |
2744 | found_stub = 1; | |
2745 | check_stub_method (type, method_id, j); | |
2746 | } | |
2747 | ||
7ba81444 MS |
2748 | /* GNU v3 methods with incorrect names were corrected when we read |
2749 | in type information, because it was cheaper to do it then. The | |
2750 | only GNU v2 methods with incorrect method names are operators and | |
2751 | destructors; destructors were also corrected when we read in type | |
2752 | information. | |
de17c821 DJ |
2753 | |
2754 | Therefore the only thing we need to handle here are v2 operator | |
2755 | names. */ | |
61012eef | 2756 | if (found_stub && !startswith (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z")) |
de17c821 DJ |
2757 | { |
2758 | int ret; | |
2759 | char dem_opname[256]; | |
2760 | ||
7ba81444 MS |
2761 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
2762 | method_id), | |
de17c821 DJ |
2763 | dem_opname, DMGL_ANSI); |
2764 | if (!ret) | |
7ba81444 MS |
2765 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
2766 | method_id), | |
de17c821 DJ |
2767 | dem_opname, 0); |
2768 | if (ret) | |
2769 | TYPE_FN_FIELDLIST_NAME (type, method_id) = xstrdup (dem_opname); | |
2770 | } | |
2771 | } | |
2772 | ||
9655fd1a JK |
2773 | /* Ensure it is in .rodata (if available) by workarounding GCC PR 44690. */ |
2774 | const struct cplus_struct_type cplus_struct_default = { }; | |
c906108c SS |
2775 | |
2776 | void | |
fba45db2 | 2777 | allocate_cplus_struct_type (struct type *type) |
c906108c | 2778 | { |
b4ba55a1 JB |
2779 | if (HAVE_CPLUS_STRUCT (type)) |
2780 | /* Structure was already allocated. Nothing more to do. */ | |
2781 | return; | |
2782 | ||
2783 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF; | |
2784 | TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
2785 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
2786 | *(TYPE_RAW_CPLUS_SPECIFIC (type)) = cplus_struct_default; | |
ae6ae975 | 2787 | set_type_vptr_fieldno (type, -1); |
c906108c SS |
2788 | } |
2789 | ||
b4ba55a1 JB |
2790 | const struct gnat_aux_type gnat_aux_default = |
2791 | { NULL }; | |
2792 | ||
2793 | /* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF, | |
2794 | and allocate the associated gnat-specific data. The gnat-specific | |
2795 | data is also initialized to gnat_aux_default. */ | |
5212577a | 2796 | |
b4ba55a1 JB |
2797 | void |
2798 | allocate_gnat_aux_type (struct type *type) | |
2799 | { | |
2800 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF; | |
2801 | TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) | |
2802 | TYPE_ALLOC (type, sizeof (struct gnat_aux_type)); | |
2803 | *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default; | |
2804 | } | |
2805 | ||
ae438bc5 UW |
2806 | /* Helper function to initialize a newly allocated type. Set type code |
2807 | to CODE and initialize the type-specific fields accordingly. */ | |
2808 | ||
2809 | static void | |
2810 | set_type_code (struct type *type, enum type_code code) | |
2811 | { | |
2812 | TYPE_CODE (type) = code; | |
2813 | ||
2814 | switch (code) | |
2815 | { | |
2816 | case TYPE_CODE_STRUCT: | |
2817 | case TYPE_CODE_UNION: | |
2818 | case TYPE_CODE_NAMESPACE: | |
2819 | INIT_CPLUS_SPECIFIC (type); | |
2820 | break; | |
2821 | case TYPE_CODE_FLT: | |
2822 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT; | |
2823 | break; | |
2824 | case TYPE_CODE_FUNC: | |
2825 | INIT_FUNC_SPECIFIC (type); | |
2826 | break; | |
2827 | } | |
2828 | } | |
2829 | ||
19f392bc UW |
2830 | /* Helper function to verify floating-point format and size. |
2831 | BIT is the type size in bits; if BIT equals -1, the size is | |
2832 | determined by the floatformat. Returns size to be used. */ | |
2833 | ||
2834 | static int | |
0db7851f | 2835 | verify_floatformat (int bit, const struct floatformat *floatformat) |
19f392bc | 2836 | { |
0db7851f | 2837 | gdb_assert (floatformat != NULL); |
9b790ce7 | 2838 | |
19f392bc | 2839 | if (bit == -1) |
0db7851f | 2840 | bit = floatformat->totalsize; |
19f392bc | 2841 | |
0db7851f UW |
2842 | gdb_assert (bit >= 0); |
2843 | gdb_assert (bit >= floatformat->totalsize); | |
19f392bc UW |
2844 | |
2845 | return bit; | |
2846 | } | |
2847 | ||
0db7851f UW |
2848 | /* Return the floating-point format for a floating-point variable of |
2849 | type TYPE. */ | |
2850 | ||
2851 | const struct floatformat * | |
2852 | floatformat_from_type (const struct type *type) | |
2853 | { | |
2854 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLT); | |
2855 | gdb_assert (TYPE_FLOATFORMAT (type)); | |
2856 | return TYPE_FLOATFORMAT (type); | |
2857 | } | |
2858 | ||
c906108c SS |
2859 | /* Helper function to initialize the standard scalar types. |
2860 | ||
86f62fd7 TT |
2861 | If NAME is non-NULL, then it is used to initialize the type name. |
2862 | Note that NAME is not copied; it is required to have a lifetime at | |
2863 | least as long as OBJFILE. */ | |
c906108c SS |
2864 | |
2865 | struct type * | |
77b7c781 | 2866 | init_type (struct objfile *objfile, enum type_code code, int bit, |
19f392bc | 2867 | const char *name) |
c906108c | 2868 | { |
52f0bd74 | 2869 | struct type *type; |
c906108c SS |
2870 | |
2871 | type = alloc_type (objfile); | |
ae438bc5 | 2872 | set_type_code (type, code); |
77b7c781 UW |
2873 | gdb_assert ((bit % TARGET_CHAR_BIT) == 0); |
2874 | TYPE_LENGTH (type) = bit / TARGET_CHAR_BIT; | |
86f62fd7 | 2875 | TYPE_NAME (type) = name; |
c906108c | 2876 | |
c16abbde | 2877 | return type; |
c906108c | 2878 | } |
19f392bc | 2879 | |
46a4882b PA |
2880 | /* Allocate a TYPE_CODE_ERROR type structure associated with OBJFILE, |
2881 | to use with variables that have no debug info. NAME is the type | |
2882 | name. */ | |
2883 | ||
2884 | static struct type * | |
2885 | init_nodebug_var_type (struct objfile *objfile, const char *name) | |
2886 | { | |
2887 | return init_type (objfile, TYPE_CODE_ERROR, 0, name); | |
2888 | } | |
2889 | ||
19f392bc UW |
2890 | /* Allocate a TYPE_CODE_INT type structure associated with OBJFILE. |
2891 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
2892 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
2893 | ||
2894 | struct type * | |
2895 | init_integer_type (struct objfile *objfile, | |
2896 | int bit, int unsigned_p, const char *name) | |
2897 | { | |
2898 | struct type *t; | |
2899 | ||
77b7c781 | 2900 | t = init_type (objfile, TYPE_CODE_INT, bit, name); |
19f392bc UW |
2901 | if (unsigned_p) |
2902 | TYPE_UNSIGNED (t) = 1; | |
2903 | ||
2904 | return t; | |
2905 | } | |
2906 | ||
2907 | /* Allocate a TYPE_CODE_CHAR type structure associated with OBJFILE. | |
2908 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
2909 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
2910 | ||
2911 | struct type * | |
2912 | init_character_type (struct objfile *objfile, | |
2913 | int bit, int unsigned_p, const char *name) | |
2914 | { | |
2915 | struct type *t; | |
2916 | ||
77b7c781 | 2917 | t = init_type (objfile, TYPE_CODE_CHAR, bit, name); |
19f392bc UW |
2918 | if (unsigned_p) |
2919 | TYPE_UNSIGNED (t) = 1; | |
2920 | ||
2921 | return t; | |
2922 | } | |
2923 | ||
2924 | /* Allocate a TYPE_CODE_BOOL type structure associated with OBJFILE. | |
2925 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
2926 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
2927 | ||
2928 | struct type * | |
2929 | init_boolean_type (struct objfile *objfile, | |
2930 | int bit, int unsigned_p, const char *name) | |
2931 | { | |
2932 | struct type *t; | |
2933 | ||
77b7c781 | 2934 | t = init_type (objfile, TYPE_CODE_BOOL, bit, name); |
19f392bc UW |
2935 | if (unsigned_p) |
2936 | TYPE_UNSIGNED (t) = 1; | |
2937 | ||
2938 | return t; | |
2939 | } | |
2940 | ||
2941 | /* Allocate a TYPE_CODE_FLT type structure associated with OBJFILE. | |
2942 | BIT is the type size in bits; if BIT equals -1, the size is | |
2943 | determined by the floatformat. NAME is the type name. Set the | |
2944 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
2945 | ||
2946 | struct type * | |
2947 | init_float_type (struct objfile *objfile, | |
2948 | int bit, const char *name, | |
2949 | const struct floatformat **floatformats) | |
2950 | { | |
0db7851f UW |
2951 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
2952 | const struct floatformat *fmt = floatformats[gdbarch_byte_order (gdbarch)]; | |
19f392bc UW |
2953 | struct type *t; |
2954 | ||
0db7851f | 2955 | bit = verify_floatformat (bit, fmt); |
77b7c781 | 2956 | t = init_type (objfile, TYPE_CODE_FLT, bit, name); |
0db7851f | 2957 | TYPE_FLOATFORMAT (t) = fmt; |
19f392bc UW |
2958 | |
2959 | return t; | |
2960 | } | |
2961 | ||
2962 | /* Allocate a TYPE_CODE_DECFLOAT type structure associated with OBJFILE. | |
2963 | BIT is the type size in bits. NAME is the type name. */ | |
2964 | ||
2965 | struct type * | |
2966 | init_decfloat_type (struct objfile *objfile, int bit, const char *name) | |
2967 | { | |
2968 | struct type *t; | |
2969 | ||
77b7c781 | 2970 | t = init_type (objfile, TYPE_CODE_DECFLOAT, bit, name); |
19f392bc UW |
2971 | return t; |
2972 | } | |
2973 | ||
2974 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with OBJFILE. | |
2975 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
2976 | ||
2977 | struct type * | |
2978 | init_complex_type (struct objfile *objfile, | |
2979 | const char *name, struct type *target_type) | |
2980 | { | |
2981 | struct type *t; | |
2982 | ||
2983 | t = init_type (objfile, TYPE_CODE_COMPLEX, | |
77b7c781 | 2984 | 2 * TYPE_LENGTH (target_type) * TARGET_CHAR_BIT, name); |
19f392bc UW |
2985 | TYPE_TARGET_TYPE (t) = target_type; |
2986 | return t; | |
2987 | } | |
2988 | ||
2989 | /* Allocate a TYPE_CODE_PTR type structure associated with OBJFILE. | |
2990 | BIT is the pointer type size in bits. NAME is the type name. | |
2991 | TARGET_TYPE is the pointer target type. Always sets the pointer type's | |
2992 | TYPE_UNSIGNED flag. */ | |
2993 | ||
2994 | struct type * | |
2995 | init_pointer_type (struct objfile *objfile, | |
2996 | int bit, const char *name, struct type *target_type) | |
2997 | { | |
2998 | struct type *t; | |
2999 | ||
77b7c781 | 3000 | t = init_type (objfile, TYPE_CODE_PTR, bit, name); |
19f392bc UW |
3001 | TYPE_TARGET_TYPE (t) = target_type; |
3002 | TYPE_UNSIGNED (t) = 1; | |
3003 | return t; | |
3004 | } | |
3005 | ||
2b4424c3 TT |
3006 | /* See gdbtypes.h. */ |
3007 | ||
3008 | unsigned | |
3009 | type_raw_align (struct type *type) | |
3010 | { | |
3011 | if (type->align_log2 != 0) | |
3012 | return 1 << (type->align_log2 - 1); | |
3013 | return 0; | |
3014 | } | |
3015 | ||
3016 | /* See gdbtypes.h. */ | |
3017 | ||
3018 | unsigned | |
3019 | type_align (struct type *type) | |
3020 | { | |
3021 | unsigned raw_align = type_raw_align (type); | |
3022 | if (raw_align != 0) | |
3023 | return raw_align; | |
3024 | ||
3025 | ULONGEST align = 0; | |
3026 | switch (TYPE_CODE (type)) | |
3027 | { | |
3028 | case TYPE_CODE_PTR: | |
3029 | case TYPE_CODE_FUNC: | |
3030 | case TYPE_CODE_FLAGS: | |
3031 | case TYPE_CODE_INT: | |
3032 | case TYPE_CODE_FLT: | |
3033 | case TYPE_CODE_ENUM: | |
3034 | case TYPE_CODE_REF: | |
3035 | case TYPE_CODE_RVALUE_REF: | |
3036 | case TYPE_CODE_CHAR: | |
3037 | case TYPE_CODE_BOOL: | |
3038 | case TYPE_CODE_DECFLOAT: | |
3039 | { | |
3040 | struct gdbarch *arch = get_type_arch (type); | |
3041 | align = gdbarch_type_align (arch, type); | |
3042 | } | |
3043 | break; | |
3044 | ||
3045 | case TYPE_CODE_ARRAY: | |
3046 | case TYPE_CODE_COMPLEX: | |
3047 | case TYPE_CODE_TYPEDEF: | |
3048 | align = type_align (TYPE_TARGET_TYPE (type)); | |
3049 | break; | |
3050 | ||
3051 | case TYPE_CODE_STRUCT: | |
3052 | case TYPE_CODE_UNION: | |
3053 | { | |
3054 | if (TYPE_NFIELDS (type) == 0) | |
3055 | { | |
3056 | /* An empty struct has alignment 1. */ | |
3057 | align = 1; | |
3058 | break; | |
3059 | } | |
3060 | for (unsigned i = 0; i < TYPE_NFIELDS (type); ++i) | |
3061 | { | |
3062 | ULONGEST f_align = type_align (TYPE_FIELD_TYPE (type, i)); | |
3063 | if (f_align == 0) | |
3064 | { | |
3065 | /* Don't pretend we know something we don't. */ | |
3066 | align = 0; | |
3067 | break; | |
3068 | } | |
3069 | if (f_align > align) | |
3070 | align = f_align; | |
3071 | } | |
3072 | } | |
3073 | break; | |
3074 | ||
3075 | case TYPE_CODE_SET: | |
3076 | case TYPE_CODE_RANGE: | |
3077 | case TYPE_CODE_STRING: | |
3078 | /* Not sure what to do here, and these can't appear in C or C++ | |
3079 | anyway. */ | |
3080 | break; | |
3081 | ||
3082 | case TYPE_CODE_METHODPTR: | |
3083 | case TYPE_CODE_MEMBERPTR: | |
55c748a1 | 3084 | align = type_length_units (type); |
2b4424c3 TT |
3085 | break; |
3086 | ||
3087 | case TYPE_CODE_VOID: | |
3088 | align = 1; | |
3089 | break; | |
3090 | ||
3091 | case TYPE_CODE_ERROR: | |
3092 | case TYPE_CODE_METHOD: | |
3093 | default: | |
3094 | break; | |
3095 | } | |
3096 | ||
3097 | if ((align & (align - 1)) != 0) | |
3098 | { | |
3099 | /* Not a power of 2, so pass. */ | |
3100 | align = 0; | |
3101 | } | |
3102 | ||
3103 | return align; | |
3104 | } | |
3105 | ||
3106 | /* See gdbtypes.h. */ | |
3107 | ||
3108 | bool | |
3109 | set_type_align (struct type *type, ULONGEST align) | |
3110 | { | |
3111 | /* Must be a power of 2. Zero is ok. */ | |
3112 | gdb_assert ((align & (align - 1)) == 0); | |
3113 | ||
3114 | unsigned result = 0; | |
3115 | while (align != 0) | |
3116 | { | |
3117 | ++result; | |
3118 | align >>= 1; | |
3119 | } | |
3120 | ||
3121 | if (result >= (1 << TYPE_ALIGN_BITS)) | |
3122 | return false; | |
3123 | ||
3124 | type->align_log2 = result; | |
3125 | return true; | |
3126 | } | |
3127 | ||
5212577a DE |
3128 | \f |
3129 | /* Queries on types. */ | |
c906108c | 3130 | |
c906108c | 3131 | int |
fba45db2 | 3132 | can_dereference (struct type *t) |
c906108c | 3133 | { |
7ba81444 MS |
3134 | /* FIXME: Should we return true for references as well as |
3135 | pointers? */ | |
f168693b | 3136 | t = check_typedef (t); |
c906108c SS |
3137 | return |
3138 | (t != NULL | |
3139 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
3140 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
3141 | } | |
3142 | ||
adf40b2e | 3143 | int |
fba45db2 | 3144 | is_integral_type (struct type *t) |
adf40b2e | 3145 | { |
f168693b | 3146 | t = check_typedef (t); |
adf40b2e JM |
3147 | return |
3148 | ((t != NULL) | |
d4f3574e SS |
3149 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
3150 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
4f2aea11 | 3151 | || (TYPE_CODE (t) == TYPE_CODE_FLAGS) |
d4f3574e SS |
3152 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) |
3153 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
3154 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
3155 | } |
3156 | ||
70100014 UW |
3157 | int |
3158 | is_floating_type (struct type *t) | |
3159 | { | |
3160 | t = check_typedef (t); | |
3161 | return | |
3162 | ((t != NULL) | |
3163 | && ((TYPE_CODE (t) == TYPE_CODE_FLT) | |
3164 | || (TYPE_CODE (t) == TYPE_CODE_DECFLOAT))); | |
3165 | } | |
3166 | ||
e09342b5 TJB |
3167 | /* Return true if TYPE is scalar. */ |
3168 | ||
220475ed | 3169 | int |
e09342b5 TJB |
3170 | is_scalar_type (struct type *type) |
3171 | { | |
f168693b | 3172 | type = check_typedef (type); |
e09342b5 TJB |
3173 | |
3174 | switch (TYPE_CODE (type)) | |
3175 | { | |
3176 | case TYPE_CODE_ARRAY: | |
3177 | case TYPE_CODE_STRUCT: | |
3178 | case TYPE_CODE_UNION: | |
3179 | case TYPE_CODE_SET: | |
3180 | case TYPE_CODE_STRING: | |
e09342b5 TJB |
3181 | return 0; |
3182 | default: | |
3183 | return 1; | |
3184 | } | |
3185 | } | |
3186 | ||
3187 | /* Return true if T is scalar, or a composite type which in practice has | |
90e4670f TJB |
3188 | the memory layout of a scalar type. E.g., an array or struct with only |
3189 | one scalar element inside it, or a union with only scalar elements. */ | |
e09342b5 TJB |
3190 | |
3191 | int | |
3192 | is_scalar_type_recursive (struct type *t) | |
3193 | { | |
f168693b | 3194 | t = check_typedef (t); |
e09342b5 TJB |
3195 | |
3196 | if (is_scalar_type (t)) | |
3197 | return 1; | |
3198 | /* Are we dealing with an array or string of known dimensions? */ | |
3199 | else if ((TYPE_CODE (t) == TYPE_CODE_ARRAY | |
3200 | || TYPE_CODE (t) == TYPE_CODE_STRING) && TYPE_NFIELDS (t) == 1 | |
3201 | && TYPE_CODE (TYPE_INDEX_TYPE (t)) == TYPE_CODE_RANGE) | |
3202 | { | |
3203 | LONGEST low_bound, high_bound; | |
3204 | struct type *elt_type = check_typedef (TYPE_TARGET_TYPE (t)); | |
3205 | ||
3206 | get_discrete_bounds (TYPE_INDEX_TYPE (t), &low_bound, &high_bound); | |
3207 | ||
3208 | return high_bound == low_bound && is_scalar_type_recursive (elt_type); | |
3209 | } | |
3210 | /* Are we dealing with a struct with one element? */ | |
3211 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT && TYPE_NFIELDS (t) == 1) | |
3212 | return is_scalar_type_recursive (TYPE_FIELD_TYPE (t, 0)); | |
3213 | else if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
3214 | { | |
3215 | int i, n = TYPE_NFIELDS (t); | |
3216 | ||
3217 | /* If all elements of the union are scalar, then the union is scalar. */ | |
3218 | for (i = 0; i < n; i++) | |
3219 | if (!is_scalar_type_recursive (TYPE_FIELD_TYPE (t, i))) | |
3220 | return 0; | |
3221 | ||
3222 | return 1; | |
3223 | } | |
3224 | ||
3225 | return 0; | |
3226 | } | |
3227 | ||
6c659fc2 SC |
3228 | /* Return true is T is a class or a union. False otherwise. */ |
3229 | ||
3230 | int | |
3231 | class_or_union_p (const struct type *t) | |
3232 | { | |
3233 | return (TYPE_CODE (t) == TYPE_CODE_STRUCT | |
3234 | || TYPE_CODE (t) == TYPE_CODE_UNION); | |
3235 | } | |
3236 | ||
4e8f195d TT |
3237 | /* A helper function which returns true if types A and B represent the |
3238 | "same" class type. This is true if the types have the same main | |
3239 | type, or the same name. */ | |
3240 | ||
3241 | int | |
3242 | class_types_same_p (const struct type *a, const struct type *b) | |
3243 | { | |
3244 | return (TYPE_MAIN_TYPE (a) == TYPE_MAIN_TYPE (b) | |
3245 | || (TYPE_NAME (a) && TYPE_NAME (b) | |
3246 | && !strcmp (TYPE_NAME (a), TYPE_NAME (b)))); | |
3247 | } | |
3248 | ||
a9d5ef47 SW |
3249 | /* If BASE is an ancestor of DCLASS return the distance between them. |
3250 | otherwise return -1; | |
3251 | eg: | |
3252 | ||
3253 | class A {}; | |
3254 | class B: public A {}; | |
3255 | class C: public B {}; | |
3256 | class D: C {}; | |
3257 | ||
3258 | distance_to_ancestor (A, A, 0) = 0 | |
3259 | distance_to_ancestor (A, B, 0) = 1 | |
3260 | distance_to_ancestor (A, C, 0) = 2 | |
3261 | distance_to_ancestor (A, D, 0) = 3 | |
3262 | ||
3263 | If PUBLIC is 1 then only public ancestors are considered, | |
3264 | and the function returns the distance only if BASE is a public ancestor | |
3265 | of DCLASS. | |
3266 | Eg: | |
3267 | ||
0963b4bd | 3268 | distance_to_ancestor (A, D, 1) = -1. */ |
c906108c | 3269 | |
0526b37a | 3270 | static int |
fe978cb0 | 3271 | distance_to_ancestor (struct type *base, struct type *dclass, int is_public) |
c906108c SS |
3272 | { |
3273 | int i; | |
a9d5ef47 | 3274 | int d; |
c5aa993b | 3275 | |
f168693b SM |
3276 | base = check_typedef (base); |
3277 | dclass = check_typedef (dclass); | |
c906108c | 3278 | |
4e8f195d | 3279 | if (class_types_same_p (base, dclass)) |
a9d5ef47 | 3280 | return 0; |
c906108c SS |
3281 | |
3282 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
4e8f195d | 3283 | { |
fe978cb0 | 3284 | if (is_public && ! BASETYPE_VIA_PUBLIC (dclass, i)) |
0526b37a SW |
3285 | continue; |
3286 | ||
fe978cb0 | 3287 | d = distance_to_ancestor (base, TYPE_BASECLASS (dclass, i), is_public); |
a9d5ef47 SW |
3288 | if (d >= 0) |
3289 | return 1 + d; | |
4e8f195d | 3290 | } |
c906108c | 3291 | |
a9d5ef47 | 3292 | return -1; |
c906108c | 3293 | } |
4e8f195d | 3294 | |
0526b37a SW |
3295 | /* Check whether BASE is an ancestor or base class or DCLASS |
3296 | Return 1 if so, and 0 if not. | |
3297 | Note: If BASE and DCLASS are of the same type, this function | |
3298 | will return 1. So for some class A, is_ancestor (A, A) will | |
3299 | return 1. */ | |
3300 | ||
3301 | int | |
3302 | is_ancestor (struct type *base, struct type *dclass) | |
3303 | { | |
a9d5ef47 | 3304 | return distance_to_ancestor (base, dclass, 0) >= 0; |
0526b37a SW |
3305 | } |
3306 | ||
4e8f195d TT |
3307 | /* Like is_ancestor, but only returns true when BASE is a public |
3308 | ancestor of DCLASS. */ | |
3309 | ||
3310 | int | |
3311 | is_public_ancestor (struct type *base, struct type *dclass) | |
3312 | { | |
a9d5ef47 | 3313 | return distance_to_ancestor (base, dclass, 1) >= 0; |
4e8f195d TT |
3314 | } |
3315 | ||
3316 | /* A helper function for is_unique_ancestor. */ | |
3317 | ||
3318 | static int | |
3319 | is_unique_ancestor_worker (struct type *base, struct type *dclass, | |
3320 | int *offset, | |
8af8e3bc PA |
3321 | const gdb_byte *valaddr, int embedded_offset, |
3322 | CORE_ADDR address, struct value *val) | |
4e8f195d TT |
3323 | { |
3324 | int i, count = 0; | |
3325 | ||
f168693b SM |
3326 | base = check_typedef (base); |
3327 | dclass = check_typedef (dclass); | |
4e8f195d TT |
3328 | |
3329 | for (i = 0; i < TYPE_N_BASECLASSES (dclass) && count < 2; ++i) | |
3330 | { | |
8af8e3bc PA |
3331 | struct type *iter; |
3332 | int this_offset; | |
4e8f195d | 3333 | |
8af8e3bc PA |
3334 | iter = check_typedef (TYPE_BASECLASS (dclass, i)); |
3335 | ||
3336 | this_offset = baseclass_offset (dclass, i, valaddr, embedded_offset, | |
3337 | address, val); | |
4e8f195d TT |
3338 | |
3339 | if (class_types_same_p (base, iter)) | |
3340 | { | |
3341 | /* If this is the first subclass, set *OFFSET and set count | |
3342 | to 1. Otherwise, if this is at the same offset as | |
3343 | previous instances, do nothing. Otherwise, increment | |
3344 | count. */ | |
3345 | if (*offset == -1) | |
3346 | { | |
3347 | *offset = this_offset; | |
3348 | count = 1; | |
3349 | } | |
3350 | else if (this_offset == *offset) | |
3351 | { | |
3352 | /* Nothing. */ | |
3353 | } | |
3354 | else | |
3355 | ++count; | |
3356 | } | |
3357 | else | |
3358 | count += is_unique_ancestor_worker (base, iter, offset, | |
8af8e3bc PA |
3359 | valaddr, |
3360 | embedded_offset + this_offset, | |
3361 | address, val); | |
4e8f195d TT |
3362 | } |
3363 | ||
3364 | return count; | |
3365 | } | |
3366 | ||
3367 | /* Like is_ancestor, but only returns true if BASE is a unique base | |
3368 | class of the type of VAL. */ | |
3369 | ||
3370 | int | |
3371 | is_unique_ancestor (struct type *base, struct value *val) | |
3372 | { | |
3373 | int offset = -1; | |
3374 | ||
3375 | return is_unique_ancestor_worker (base, value_type (val), &offset, | |
8af8e3bc PA |
3376 | value_contents_for_printing (val), |
3377 | value_embedded_offset (val), | |
3378 | value_address (val), val) == 1; | |
4e8f195d TT |
3379 | } |
3380 | ||
c906108c | 3381 | \f |
5212577a | 3382 | /* Overload resolution. */ |
c906108c | 3383 | |
6403aeea SW |
3384 | /* Return the sum of the rank of A with the rank of B. */ |
3385 | ||
3386 | struct rank | |
3387 | sum_ranks (struct rank a, struct rank b) | |
3388 | { | |
3389 | struct rank c; | |
3390 | c.rank = a.rank + b.rank; | |
a9d5ef47 | 3391 | c.subrank = a.subrank + b.subrank; |
6403aeea SW |
3392 | return c; |
3393 | } | |
3394 | ||
3395 | /* Compare rank A and B and return: | |
3396 | 0 if a = b | |
3397 | 1 if a is better than b | |
3398 | -1 if b is better than a. */ | |
3399 | ||
3400 | int | |
3401 | compare_ranks (struct rank a, struct rank b) | |
3402 | { | |
3403 | if (a.rank == b.rank) | |
a9d5ef47 SW |
3404 | { |
3405 | if (a.subrank == b.subrank) | |
3406 | return 0; | |
3407 | if (a.subrank < b.subrank) | |
3408 | return 1; | |
3409 | if (a.subrank > b.subrank) | |
3410 | return -1; | |
3411 | } | |
6403aeea SW |
3412 | |
3413 | if (a.rank < b.rank) | |
3414 | return 1; | |
3415 | ||
0963b4bd | 3416 | /* a.rank > b.rank */ |
6403aeea SW |
3417 | return -1; |
3418 | } | |
c5aa993b | 3419 | |
0963b4bd | 3420 | /* Functions for overload resolution begin here. */ |
c906108c SS |
3421 | |
3422 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
3423 | 0 => A and B are identical |
3424 | 1 => A and B are incomparable | |
3425 | 2 => A is better than B | |
3426 | 3 => A is worse than B */ | |
c906108c SS |
3427 | |
3428 | int | |
fba45db2 | 3429 | compare_badness (struct badness_vector *a, struct badness_vector *b) |
c906108c SS |
3430 | { |
3431 | int i; | |
3432 | int tmp; | |
c5aa993b JM |
3433 | short found_pos = 0; /* any positives in c? */ |
3434 | short found_neg = 0; /* any negatives in c? */ | |
3435 | ||
3436 | /* differing lengths => incomparable */ | |
c906108c SS |
3437 | if (a->length != b->length) |
3438 | return 1; | |
3439 | ||
c5aa993b JM |
3440 | /* Subtract b from a */ |
3441 | for (i = 0; i < a->length; i++) | |
c906108c | 3442 | { |
6403aeea | 3443 | tmp = compare_ranks (b->rank[i], a->rank[i]); |
c906108c | 3444 | if (tmp > 0) |
c5aa993b | 3445 | found_pos = 1; |
c906108c | 3446 | else if (tmp < 0) |
c5aa993b | 3447 | found_neg = 1; |
c906108c SS |
3448 | } |
3449 | ||
3450 | if (found_pos) | |
3451 | { | |
3452 | if (found_neg) | |
c5aa993b | 3453 | return 1; /* incomparable */ |
c906108c | 3454 | else |
c5aa993b | 3455 | return 3; /* A > B */ |
c906108c | 3456 | } |
c5aa993b JM |
3457 | else |
3458 | /* no positives */ | |
c906108c SS |
3459 | { |
3460 | if (found_neg) | |
c5aa993b | 3461 | return 2; /* A < B */ |
c906108c | 3462 | else |
c5aa993b | 3463 | return 0; /* A == B */ |
c906108c SS |
3464 | } |
3465 | } | |
3466 | ||
7ba81444 MS |
3467 | /* Rank a function by comparing its parameter types (PARMS, length |
3468 | NPARMS), to the types of an argument list (ARGS, length NARGS). | |
3469 | Return a pointer to a badness vector. This has NARGS + 1 | |
3470 | entries. */ | |
c906108c SS |
3471 | |
3472 | struct badness_vector * | |
7ba81444 | 3473 | rank_function (struct type **parms, int nparms, |
da096638 | 3474 | struct value **args, int nargs) |
c906108c SS |
3475 | { |
3476 | int i; | |
8d749320 | 3477 | struct badness_vector *bv = XNEW (struct badness_vector); |
c906108c SS |
3478 | int min_len = nparms < nargs ? nparms : nargs; |
3479 | ||
0963b4bd | 3480 | bv->length = nargs + 1; /* add 1 for the length-match rank. */ |
c4e54771 | 3481 | bv->rank = XNEWVEC (struct rank, nargs + 1); |
c906108c SS |
3482 | |
3483 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 3484 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 3485 | |
c906108c | 3486 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
3487 | arguments and ellipsis parameter lists, we should consider those |
3488 | and rank the length-match more finely. */ | |
c906108c | 3489 | |
6403aeea SW |
3490 | LENGTH_MATCH (bv) = (nargs != nparms) |
3491 | ? LENGTH_MISMATCH_BADNESS | |
3492 | : EXACT_MATCH_BADNESS; | |
c906108c | 3493 | |
0963b4bd | 3494 | /* Now rank all the parameters of the candidate function. */ |
74cc24b0 | 3495 | for (i = 1; i <= min_len; i++) |
da096638 KS |
3496 | bv->rank[i] = rank_one_type (parms[i - 1], value_type (args[i - 1]), |
3497 | args[i - 1]); | |
c906108c | 3498 | |
0963b4bd | 3499 | /* If more arguments than parameters, add dummy entries. */ |
c5aa993b | 3500 | for (i = min_len + 1; i <= nargs; i++) |
c906108c SS |
3501 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
3502 | ||
3503 | return bv; | |
3504 | } | |
3505 | ||
973ccf8b DJ |
3506 | /* Compare the names of two integer types, assuming that any sign |
3507 | qualifiers have been checked already. We do it this way because | |
3508 | there may be an "int" in the name of one of the types. */ | |
3509 | ||
3510 | static int | |
3511 | integer_types_same_name_p (const char *first, const char *second) | |
3512 | { | |
3513 | int first_p, second_p; | |
3514 | ||
7ba81444 MS |
3515 | /* If both are shorts, return 1; if neither is a short, keep |
3516 | checking. */ | |
973ccf8b DJ |
3517 | first_p = (strstr (first, "short") != NULL); |
3518 | second_p = (strstr (second, "short") != NULL); | |
3519 | if (first_p && second_p) | |
3520 | return 1; | |
3521 | if (first_p || second_p) | |
3522 | return 0; | |
3523 | ||
3524 | /* Likewise for long. */ | |
3525 | first_p = (strstr (first, "long") != NULL); | |
3526 | second_p = (strstr (second, "long") != NULL); | |
3527 | if (first_p && second_p) | |
3528 | return 1; | |
3529 | if (first_p || second_p) | |
3530 | return 0; | |
3531 | ||
3532 | /* Likewise for char. */ | |
3533 | first_p = (strstr (first, "char") != NULL); | |
3534 | second_p = (strstr (second, "char") != NULL); | |
3535 | if (first_p && second_p) | |
3536 | return 1; | |
3537 | if (first_p || second_p) | |
3538 | return 0; | |
3539 | ||
3540 | /* They must both be ints. */ | |
3541 | return 1; | |
3542 | } | |
3543 | ||
894882e3 TT |
3544 | /* Compares type A to type B. Returns true if they represent the same |
3545 | type, false otherwise. */ | |
7062b0a0 | 3546 | |
894882e3 | 3547 | bool |
7062b0a0 SW |
3548 | types_equal (struct type *a, struct type *b) |
3549 | { | |
3550 | /* Identical type pointers. */ | |
3551 | /* However, this still doesn't catch all cases of same type for b | |
3552 | and a. The reason is that builtin types are different from | |
3553 | the same ones constructed from the object. */ | |
3554 | if (a == b) | |
894882e3 | 3555 | return true; |
7062b0a0 SW |
3556 | |
3557 | /* Resolve typedefs */ | |
3558 | if (TYPE_CODE (a) == TYPE_CODE_TYPEDEF) | |
3559 | a = check_typedef (a); | |
3560 | if (TYPE_CODE (b) == TYPE_CODE_TYPEDEF) | |
3561 | b = check_typedef (b); | |
3562 | ||
3563 | /* If after resolving typedefs a and b are not of the same type | |
3564 | code then they are not equal. */ | |
3565 | if (TYPE_CODE (a) != TYPE_CODE (b)) | |
894882e3 | 3566 | return false; |
7062b0a0 SW |
3567 | |
3568 | /* If a and b are both pointers types or both reference types then | |
3569 | they are equal of the same type iff the objects they refer to are | |
3570 | of the same type. */ | |
3571 | if (TYPE_CODE (a) == TYPE_CODE_PTR | |
3572 | || TYPE_CODE (a) == TYPE_CODE_REF) | |
3573 | return types_equal (TYPE_TARGET_TYPE (a), | |
3574 | TYPE_TARGET_TYPE (b)); | |
3575 | ||
0963b4bd | 3576 | /* Well, damnit, if the names are exactly the same, I'll say they |
7062b0a0 SW |
3577 | are exactly the same. This happens when we generate method |
3578 | stubs. The types won't point to the same address, but they | |
0963b4bd | 3579 | really are the same. */ |
7062b0a0 SW |
3580 | |
3581 | if (TYPE_NAME (a) && TYPE_NAME (b) | |
3582 | && strcmp (TYPE_NAME (a), TYPE_NAME (b)) == 0) | |
894882e3 | 3583 | return true; |
7062b0a0 SW |
3584 | |
3585 | /* Check if identical after resolving typedefs. */ | |
3586 | if (a == b) | |
894882e3 | 3587 | return true; |
7062b0a0 | 3588 | |
9ce98649 TT |
3589 | /* Two function types are equal if their argument and return types |
3590 | are equal. */ | |
3591 | if (TYPE_CODE (a) == TYPE_CODE_FUNC) | |
3592 | { | |
3593 | int i; | |
3594 | ||
3595 | if (TYPE_NFIELDS (a) != TYPE_NFIELDS (b)) | |
894882e3 | 3596 | return false; |
9ce98649 TT |
3597 | |
3598 | if (!types_equal (TYPE_TARGET_TYPE (a), TYPE_TARGET_TYPE (b))) | |
894882e3 | 3599 | return false; |
9ce98649 TT |
3600 | |
3601 | for (i = 0; i < TYPE_NFIELDS (a); ++i) | |
3602 | if (!types_equal (TYPE_FIELD_TYPE (a, i), TYPE_FIELD_TYPE (b, i))) | |
894882e3 | 3603 | return false; |
9ce98649 | 3604 | |
894882e3 | 3605 | return true; |
9ce98649 TT |
3606 | } |
3607 | ||
894882e3 | 3608 | return false; |
7062b0a0 | 3609 | } |
ca092b61 DE |
3610 | \f |
3611 | /* Deep comparison of types. */ | |
3612 | ||
3613 | /* An entry in the type-equality bcache. */ | |
3614 | ||
894882e3 | 3615 | struct type_equality_entry |
ca092b61 | 3616 | { |
894882e3 TT |
3617 | type_equality_entry (struct type *t1, struct type *t2) |
3618 | : type1 (t1), | |
3619 | type2 (t2) | |
3620 | { | |
3621 | } | |
ca092b61 | 3622 | |
894882e3 TT |
3623 | struct type *type1, *type2; |
3624 | }; | |
ca092b61 | 3625 | |
894882e3 TT |
3626 | /* A helper function to compare two strings. Returns true if they are |
3627 | the same, false otherwise. Handles NULLs properly. */ | |
ca092b61 | 3628 | |
894882e3 | 3629 | static bool |
ca092b61 DE |
3630 | compare_maybe_null_strings (const char *s, const char *t) |
3631 | { | |
894882e3 TT |
3632 | if (s == NULL || t == NULL) |
3633 | return s == t; | |
ca092b61 DE |
3634 | return strcmp (s, t) == 0; |
3635 | } | |
3636 | ||
3637 | /* A helper function for check_types_worklist that checks two types for | |
894882e3 TT |
3638 | "deep" equality. Returns true if the types are considered the |
3639 | same, false otherwise. */ | |
ca092b61 | 3640 | |
894882e3 | 3641 | static bool |
ca092b61 | 3642 | check_types_equal (struct type *type1, struct type *type2, |
894882e3 | 3643 | std::vector<type_equality_entry> *worklist) |
ca092b61 | 3644 | { |
f168693b SM |
3645 | type1 = check_typedef (type1); |
3646 | type2 = check_typedef (type2); | |
ca092b61 DE |
3647 | |
3648 | if (type1 == type2) | |
894882e3 | 3649 | return true; |
ca092b61 DE |
3650 | |
3651 | if (TYPE_CODE (type1) != TYPE_CODE (type2) | |
3652 | || TYPE_LENGTH (type1) != TYPE_LENGTH (type2) | |
3653 | || TYPE_UNSIGNED (type1) != TYPE_UNSIGNED (type2) | |
3654 | || TYPE_NOSIGN (type1) != TYPE_NOSIGN (type2) | |
3655 | || TYPE_VARARGS (type1) != TYPE_VARARGS (type2) | |
3656 | || TYPE_VECTOR (type1) != TYPE_VECTOR (type2) | |
3657 | || TYPE_NOTTEXT (type1) != TYPE_NOTTEXT (type2) | |
3658 | || TYPE_INSTANCE_FLAGS (type1) != TYPE_INSTANCE_FLAGS (type2) | |
3659 | || TYPE_NFIELDS (type1) != TYPE_NFIELDS (type2)) | |
894882e3 | 3660 | return false; |
ca092b61 | 3661 | |
e86ca25f | 3662 | if (!compare_maybe_null_strings (TYPE_NAME (type1), TYPE_NAME (type2))) |
894882e3 | 3663 | return false; |
ca092b61 | 3664 | if (!compare_maybe_null_strings (TYPE_NAME (type1), TYPE_NAME (type2))) |
894882e3 | 3665 | return false; |
ca092b61 DE |
3666 | |
3667 | if (TYPE_CODE (type1) == TYPE_CODE_RANGE) | |
3668 | { | |
0f59d5fc | 3669 | if (*TYPE_RANGE_DATA (type1) != *TYPE_RANGE_DATA (type2)) |
894882e3 | 3670 | return false; |
ca092b61 DE |
3671 | } |
3672 | else | |
3673 | { | |
3674 | int i; | |
3675 | ||
3676 | for (i = 0; i < TYPE_NFIELDS (type1); ++i) | |
3677 | { | |
3678 | const struct field *field1 = &TYPE_FIELD (type1, i); | |
3679 | const struct field *field2 = &TYPE_FIELD (type2, i); | |
ca092b61 DE |
3680 | |
3681 | if (FIELD_ARTIFICIAL (*field1) != FIELD_ARTIFICIAL (*field2) | |
3682 | || FIELD_BITSIZE (*field1) != FIELD_BITSIZE (*field2) | |
3683 | || FIELD_LOC_KIND (*field1) != FIELD_LOC_KIND (*field2)) | |
894882e3 | 3684 | return false; |
ca092b61 DE |
3685 | if (!compare_maybe_null_strings (FIELD_NAME (*field1), |
3686 | FIELD_NAME (*field2))) | |
894882e3 | 3687 | return false; |
ca092b61 DE |
3688 | switch (FIELD_LOC_KIND (*field1)) |
3689 | { | |
3690 | case FIELD_LOC_KIND_BITPOS: | |
3691 | if (FIELD_BITPOS (*field1) != FIELD_BITPOS (*field2)) | |
894882e3 | 3692 | return false; |
ca092b61 DE |
3693 | break; |
3694 | case FIELD_LOC_KIND_ENUMVAL: | |
3695 | if (FIELD_ENUMVAL (*field1) != FIELD_ENUMVAL (*field2)) | |
894882e3 | 3696 | return false; |
ca092b61 DE |
3697 | break; |
3698 | case FIELD_LOC_KIND_PHYSADDR: | |
3699 | if (FIELD_STATIC_PHYSADDR (*field1) | |
3700 | != FIELD_STATIC_PHYSADDR (*field2)) | |
894882e3 | 3701 | return false; |
ca092b61 DE |
3702 | break; |
3703 | case FIELD_LOC_KIND_PHYSNAME: | |
3704 | if (!compare_maybe_null_strings (FIELD_STATIC_PHYSNAME (*field1), | |
3705 | FIELD_STATIC_PHYSNAME (*field2))) | |
894882e3 | 3706 | return false; |
ca092b61 DE |
3707 | break; |
3708 | case FIELD_LOC_KIND_DWARF_BLOCK: | |
3709 | { | |
3710 | struct dwarf2_locexpr_baton *block1, *block2; | |
3711 | ||
3712 | block1 = FIELD_DWARF_BLOCK (*field1); | |
3713 | block2 = FIELD_DWARF_BLOCK (*field2); | |
3714 | if (block1->per_cu != block2->per_cu | |
3715 | || block1->size != block2->size | |
3716 | || memcmp (block1->data, block2->data, block1->size) != 0) | |
894882e3 | 3717 | return false; |
ca092b61 DE |
3718 | } |
3719 | break; | |
3720 | default: | |
3721 | internal_error (__FILE__, __LINE__, _("Unsupported field kind " | |
3722 | "%d by check_types_equal"), | |
3723 | FIELD_LOC_KIND (*field1)); | |
3724 | } | |
3725 | ||
894882e3 | 3726 | worklist->emplace_back (FIELD_TYPE (*field1), FIELD_TYPE (*field2)); |
ca092b61 DE |
3727 | } |
3728 | } | |
3729 | ||
3730 | if (TYPE_TARGET_TYPE (type1) != NULL) | |
3731 | { | |
ca092b61 | 3732 | if (TYPE_TARGET_TYPE (type2) == NULL) |
894882e3 | 3733 | return false; |
ca092b61 | 3734 | |
894882e3 TT |
3735 | worklist->emplace_back (TYPE_TARGET_TYPE (type1), |
3736 | TYPE_TARGET_TYPE (type2)); | |
ca092b61 DE |
3737 | } |
3738 | else if (TYPE_TARGET_TYPE (type2) != NULL) | |
894882e3 | 3739 | return false; |
ca092b61 | 3740 | |
894882e3 | 3741 | return true; |
ca092b61 DE |
3742 | } |
3743 | ||
894882e3 TT |
3744 | /* Check types on a worklist for equality. Returns false if any pair |
3745 | is not equal, true if they are all considered equal. */ | |
ca092b61 | 3746 | |
894882e3 TT |
3747 | static bool |
3748 | check_types_worklist (std::vector<type_equality_entry> *worklist, | |
ca092b61 DE |
3749 | struct bcache *cache) |
3750 | { | |
894882e3 | 3751 | while (!worklist->empty ()) |
ca092b61 | 3752 | { |
ca092b61 DE |
3753 | int added; |
3754 | ||
894882e3 TT |
3755 | struct type_equality_entry entry = std::move (worklist->back ()); |
3756 | worklist->pop_back (); | |
ca092b61 DE |
3757 | |
3758 | /* If the type pair has already been visited, we know it is | |
3759 | ok. */ | |
3760 | bcache_full (&entry, sizeof (entry), cache, &added); | |
3761 | if (!added) | |
3762 | continue; | |
3763 | ||
894882e3 TT |
3764 | if (!check_types_equal (entry.type1, entry.type2, worklist)) |
3765 | return false; | |
ca092b61 | 3766 | } |
7062b0a0 | 3767 | |
894882e3 | 3768 | return true; |
ca092b61 DE |
3769 | } |
3770 | ||
894882e3 TT |
3771 | /* Return true if types TYPE1 and TYPE2 are equal, as determined by a |
3772 | "deep comparison". Otherwise return false. */ | |
ca092b61 | 3773 | |
894882e3 | 3774 | bool |
ca092b61 DE |
3775 | types_deeply_equal (struct type *type1, struct type *type2) |
3776 | { | |
6c63c96a | 3777 | struct gdb_exception except = exception_none; |
894882e3 | 3778 | bool result = false; |
ca092b61 | 3779 | struct bcache *cache; |
894882e3 | 3780 | std::vector<type_equality_entry> worklist; |
ca092b61 DE |
3781 | |
3782 | gdb_assert (type1 != NULL && type2 != NULL); | |
3783 | ||
3784 | /* Early exit for the simple case. */ | |
3785 | if (type1 == type2) | |
894882e3 | 3786 | return true; |
ca092b61 DE |
3787 | |
3788 | cache = bcache_xmalloc (NULL, NULL); | |
3789 | ||
894882e3 | 3790 | worklist.emplace_back (type1, type2); |
ca092b61 | 3791 | |
6c63c96a PA |
3792 | /* check_types_worklist calls several nested helper functions, some |
3793 | of which can raise a GDB exception, so we just check and rethrow | |
3794 | here. If there is a GDB exception, a comparison is not capable | |
3795 | (or trusted), so exit. */ | |
492d29ea | 3796 | TRY |
ca092b61 DE |
3797 | { |
3798 | result = check_types_worklist (&worklist, cache); | |
3799 | } | |
6c63c96a | 3800 | CATCH (ex, RETURN_MASK_ALL) |
492d29ea | 3801 | { |
6c63c96a | 3802 | except = ex; |
492d29ea PA |
3803 | } |
3804 | END_CATCH | |
ca092b61 | 3805 | |
6c63c96a | 3806 | bcache_xfree (cache); |
6c63c96a PA |
3807 | |
3808 | /* Rethrow if there was a problem. */ | |
3809 | if (except.reason < 0) | |
3810 | throw_exception (except); | |
3811 | ||
ca092b61 DE |
3812 | return result; |
3813 | } | |
3f2f83dd KB |
3814 | |
3815 | /* Allocated status of type TYPE. Return zero if type TYPE is allocated. | |
3816 | Otherwise return one. */ | |
3817 | ||
3818 | int | |
3819 | type_not_allocated (const struct type *type) | |
3820 | { | |
3821 | struct dynamic_prop *prop = TYPE_ALLOCATED_PROP (type); | |
3822 | ||
3823 | return (prop && TYPE_DYN_PROP_KIND (prop) == PROP_CONST | |
3824 | && !TYPE_DYN_PROP_ADDR (prop)); | |
3825 | } | |
3826 | ||
3827 | /* Associated status of type TYPE. Return zero if type TYPE is associated. | |
3828 | Otherwise return one. */ | |
3829 | ||
3830 | int | |
3831 | type_not_associated (const struct type *type) | |
3832 | { | |
3833 | struct dynamic_prop *prop = TYPE_ASSOCIATED_PROP (type); | |
3834 | ||
3835 | return (prop && TYPE_DYN_PROP_KIND (prop) == PROP_CONST | |
3836 | && !TYPE_DYN_PROP_ADDR (prop)); | |
3837 | } | |
ca092b61 | 3838 | \f |
c906108c SS |
3839 | /* Compare one type (PARM) for compatibility with another (ARG). |
3840 | * PARM is intended to be the parameter type of a function; and | |
3841 | * ARG is the supplied argument's type. This function tests if | |
3842 | * the latter can be converted to the former. | |
da096638 | 3843 | * VALUE is the argument's value or NULL if none (or called recursively) |
c906108c SS |
3844 | * |
3845 | * Return 0 if they are identical types; | |
3846 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 MS |
3847 | * PARM is to ARG. The higher the return value, the worse the match. |
3848 | * Generally the "bad" conversions are all uniformly assigned a 100. */ | |
c906108c | 3849 | |
6403aeea | 3850 | struct rank |
da096638 | 3851 | rank_one_type (struct type *parm, struct type *arg, struct value *value) |
c906108c | 3852 | { |
a9d5ef47 | 3853 | struct rank rank = {0,0}; |
7062b0a0 | 3854 | |
c906108c SS |
3855 | /* Resolve typedefs */ |
3856 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
3857 | parm = check_typedef (parm); | |
3858 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
3859 | arg = check_typedef (arg); | |
3860 | ||
e15c3eb4 | 3861 | if (TYPE_IS_REFERENCE (parm) && value != NULL) |
15c0a2a9 | 3862 | { |
e15c3eb4 KS |
3863 | if (VALUE_LVAL (value) == not_lval) |
3864 | { | |
3865 | /* Rvalues should preferably bind to rvalue references or const | |
3866 | lvalue references. */ | |
3867 | if (TYPE_CODE (parm) == TYPE_CODE_RVALUE_REF) | |
3868 | rank.subrank = REFERENCE_CONVERSION_RVALUE; | |
3869 | else if (TYPE_CONST (TYPE_TARGET_TYPE (parm))) | |
3870 | rank.subrank = REFERENCE_CONVERSION_CONST_LVALUE; | |
3871 | else | |
3872 | return INCOMPATIBLE_TYPE_BADNESS; | |
3873 | return sum_ranks (rank, REFERENCE_CONVERSION_BADNESS); | |
3874 | } | |
3875 | else | |
3876 | { | |
3877 | /* Lvalues should prefer lvalue overloads. */ | |
3878 | if (TYPE_CODE (parm) == TYPE_CODE_RVALUE_REF) | |
3879 | { | |
3880 | rank.subrank = REFERENCE_CONVERSION_RVALUE; | |
3881 | return sum_ranks (rank, REFERENCE_CONVERSION_BADNESS); | |
3882 | } | |
3883 | } | |
15c0a2a9 AV |
3884 | } |
3885 | ||
3886 | if (types_equal (parm, arg)) | |
15c0a2a9 | 3887 | { |
e15c3eb4 KS |
3888 | struct type *t1 = parm; |
3889 | struct type *t2 = arg; | |
15c0a2a9 | 3890 | |
e15c3eb4 KS |
3891 | /* For pointers and references, compare target type. */ |
3892 | if (TYPE_CODE (parm) == TYPE_CODE_PTR || TYPE_IS_REFERENCE (parm)) | |
3893 | { | |
3894 | t1 = TYPE_TARGET_TYPE (parm); | |
3895 | t2 = TYPE_TARGET_TYPE (arg); | |
3896 | } | |
15c0a2a9 | 3897 | |
e15c3eb4 KS |
3898 | /* Make sure they are CV equal, too. */ |
3899 | if (TYPE_CONST (t1) != TYPE_CONST (t2)) | |
3900 | rank.subrank |= CV_CONVERSION_CONST; | |
3901 | if (TYPE_VOLATILE (t1) != TYPE_VOLATILE (t2)) | |
3902 | rank.subrank |= CV_CONVERSION_VOLATILE; | |
3903 | if (rank.subrank != 0) | |
3904 | return sum_ranks (CV_CONVERSION_BADNESS, rank); | |
3905 | return EXACT_MATCH_BADNESS; | |
15c0a2a9 AV |
3906 | } |
3907 | ||
db577aea | 3908 | /* See through references, since we can almost make non-references |
7ba81444 | 3909 | references. */ |
aa006118 AV |
3910 | |
3911 | if (TYPE_IS_REFERENCE (arg)) | |
da096638 | 3912 | return (sum_ranks (rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL), |
6403aeea | 3913 | REFERENCE_CONVERSION_BADNESS)); |
aa006118 | 3914 | if (TYPE_IS_REFERENCE (parm)) |
da096638 | 3915 | return (sum_ranks (rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL), |
6403aeea | 3916 | REFERENCE_CONVERSION_BADNESS)); |
5d161b24 | 3917 | if (overload_debug) |
7ba81444 MS |
3918 | /* Debugging only. */ |
3919 | fprintf_filtered (gdb_stderr, | |
3920 | "------ Arg is %s [%d], parm is %s [%d]\n", | |
3921 | TYPE_NAME (arg), TYPE_CODE (arg), | |
3922 | TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c | 3923 | |
0963b4bd | 3924 | /* x -> y means arg of type x being supplied for parameter of type y. */ |
c906108c SS |
3925 | |
3926 | switch (TYPE_CODE (parm)) | |
3927 | { | |
c5aa993b JM |
3928 | case TYPE_CODE_PTR: |
3929 | switch (TYPE_CODE (arg)) | |
3930 | { | |
3931 | case TYPE_CODE_PTR: | |
7062b0a0 SW |
3932 | |
3933 | /* Allowed pointer conversions are: | |
3934 | (a) pointer to void-pointer conversion. */ | |
3935 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) | |
c5aa993b | 3936 | return VOID_PTR_CONVERSION_BADNESS; |
7062b0a0 SW |
3937 | |
3938 | /* (b) pointer to ancestor-pointer conversion. */ | |
a9d5ef47 SW |
3939 | rank.subrank = distance_to_ancestor (TYPE_TARGET_TYPE (parm), |
3940 | TYPE_TARGET_TYPE (arg), | |
3941 | 0); | |
3942 | if (rank.subrank >= 0) | |
3943 | return sum_ranks (BASE_PTR_CONVERSION_BADNESS, rank); | |
7062b0a0 SW |
3944 | |
3945 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 3946 | case TYPE_CODE_ARRAY: |
e15c3eb4 KS |
3947 | { |
3948 | struct type *t1 = TYPE_TARGET_TYPE (parm); | |
3949 | struct type *t2 = TYPE_TARGET_TYPE (arg); | |
3950 | ||
3951 | if (types_equal (t1, t2)) | |
3952 | { | |
3953 | /* Make sure they are CV equal. */ | |
3954 | if (TYPE_CONST (t1) != TYPE_CONST (t2)) | |
3955 | rank.subrank |= CV_CONVERSION_CONST; | |
3956 | if (TYPE_VOLATILE (t1) != TYPE_VOLATILE (t2)) | |
3957 | rank.subrank |= CV_CONVERSION_VOLATILE; | |
3958 | if (rank.subrank != 0) | |
3959 | return sum_ranks (CV_CONVERSION_BADNESS, rank); | |
3960 | return EXACT_MATCH_BADNESS; | |
3961 | } | |
3962 | return INCOMPATIBLE_TYPE_BADNESS; | |
3963 | } | |
c5aa993b | 3964 | case TYPE_CODE_FUNC: |
da096638 | 3965 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL); |
c5aa993b | 3966 | case TYPE_CODE_INT: |
a451cb65 | 3967 | if (value != NULL && TYPE_CODE (value_type (value)) == TYPE_CODE_INT) |
da096638 | 3968 | { |
a451cb65 KS |
3969 | if (value_as_long (value) == 0) |
3970 | { | |
3971 | /* Null pointer conversion: allow it to be cast to a pointer. | |
3972 | [4.10.1 of C++ standard draft n3290] */ | |
3973 | return NULL_POINTER_CONVERSION_BADNESS; | |
3974 | } | |
3975 | else | |
3976 | { | |
3977 | /* If type checking is disabled, allow the conversion. */ | |
3978 | if (!strict_type_checking) | |
3979 | return NS_INTEGER_POINTER_CONVERSION_BADNESS; | |
3980 | } | |
da096638 KS |
3981 | } |
3982 | /* fall through */ | |
c5aa993b | 3983 | case TYPE_CODE_ENUM: |
4f2aea11 | 3984 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
3985 | case TYPE_CODE_CHAR: |
3986 | case TYPE_CODE_RANGE: | |
3987 | case TYPE_CODE_BOOL: | |
c5aa993b JM |
3988 | default: |
3989 | return INCOMPATIBLE_TYPE_BADNESS; | |
3990 | } | |
3991 | case TYPE_CODE_ARRAY: | |
3992 | switch (TYPE_CODE (arg)) | |
3993 | { | |
3994 | case TYPE_CODE_PTR: | |
3995 | case TYPE_CODE_ARRAY: | |
7ba81444 | 3996 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
da096638 | 3997 | TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
3998 | default: |
3999 | return INCOMPATIBLE_TYPE_BADNESS; | |
4000 | } | |
4001 | case TYPE_CODE_FUNC: | |
4002 | switch (TYPE_CODE (arg)) | |
4003 | { | |
4004 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
da096638 | 4005 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
4006 | default: |
4007 | return INCOMPATIBLE_TYPE_BADNESS; | |
4008 | } | |
4009 | case TYPE_CODE_INT: | |
4010 | switch (TYPE_CODE (arg)) | |
4011 | { | |
4012 | case TYPE_CODE_INT: | |
4013 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
4014 | { | |
4015 | /* Deal with signed, unsigned, and plain chars and | |
7ba81444 | 4016 | signed and unsigned ints. */ |
c5aa993b JM |
4017 | if (TYPE_NOSIGN (parm)) |
4018 | { | |
0963b4bd | 4019 | /* This case only for character types. */ |
7ba81444 | 4020 | if (TYPE_NOSIGN (arg)) |
6403aeea | 4021 | return EXACT_MATCH_BADNESS; /* plain char -> plain char */ |
7ba81444 MS |
4022 | else /* signed/unsigned char -> plain char */ |
4023 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
4024 | } |
4025 | else if (TYPE_UNSIGNED (parm)) | |
4026 | { | |
4027 | if (TYPE_UNSIGNED (arg)) | |
4028 | { | |
7ba81444 MS |
4029 | /* unsigned int -> unsigned int, or |
4030 | unsigned long -> unsigned long */ | |
4031 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
4032 | TYPE_NAME (arg))) | |
6403aeea | 4033 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
4034 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
4035 | "int") | |
4036 | && integer_types_same_name_p (TYPE_NAME (parm), | |
4037 | "long")) | |
3e43a32a MS |
4038 | /* unsigned int -> unsigned long */ |
4039 | return INTEGER_PROMOTION_BADNESS; | |
c5aa993b | 4040 | else |
3e43a32a MS |
4041 | /* unsigned long -> unsigned int */ |
4042 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
4043 | } |
4044 | else | |
4045 | { | |
7ba81444 MS |
4046 | if (integer_types_same_name_p (TYPE_NAME (arg), |
4047 | "long") | |
4048 | && integer_types_same_name_p (TYPE_NAME (parm), | |
4049 | "int")) | |
3e43a32a MS |
4050 | /* signed long -> unsigned int */ |
4051 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b | 4052 | else |
3e43a32a MS |
4053 | /* signed int/long -> unsigned int/long */ |
4054 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
4055 | } |
4056 | } | |
4057 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
4058 | { | |
7ba81444 MS |
4059 | if (integer_types_same_name_p (TYPE_NAME (parm), |
4060 | TYPE_NAME (arg))) | |
6403aeea | 4061 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
4062 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
4063 | "int") | |
4064 | && integer_types_same_name_p (TYPE_NAME (parm), | |
4065 | "long")) | |
c5aa993b JM |
4066 | return INTEGER_PROMOTION_BADNESS; |
4067 | else | |
1c5cb38e | 4068 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
4069 | } |
4070 | else | |
1c5cb38e | 4071 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
4072 | } |
4073 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
4074 | return INTEGER_PROMOTION_BADNESS; | |
4075 | else | |
1c5cb38e | 4076 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b | 4077 | case TYPE_CODE_ENUM: |
4f2aea11 | 4078 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
4079 | case TYPE_CODE_CHAR: |
4080 | case TYPE_CODE_RANGE: | |
4081 | case TYPE_CODE_BOOL: | |
3d567982 TT |
4082 | if (TYPE_DECLARED_CLASS (arg)) |
4083 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b JM |
4084 | return INTEGER_PROMOTION_BADNESS; |
4085 | case TYPE_CODE_FLT: | |
4086 | return INT_FLOAT_CONVERSION_BADNESS; | |
4087 | case TYPE_CODE_PTR: | |
4088 | return NS_POINTER_CONVERSION_BADNESS; | |
4089 | default: | |
4090 | return INCOMPATIBLE_TYPE_BADNESS; | |
4091 | } | |
4092 | break; | |
4093 | case TYPE_CODE_ENUM: | |
4094 | switch (TYPE_CODE (arg)) | |
4095 | { | |
4096 | case TYPE_CODE_INT: | |
4097 | case TYPE_CODE_CHAR: | |
4098 | case TYPE_CODE_RANGE: | |
4099 | case TYPE_CODE_BOOL: | |
4100 | case TYPE_CODE_ENUM: | |
3d567982 TT |
4101 | if (TYPE_DECLARED_CLASS (parm) || TYPE_DECLARED_CLASS (arg)) |
4102 | return INCOMPATIBLE_TYPE_BADNESS; | |
1c5cb38e | 4103 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
4104 | case TYPE_CODE_FLT: |
4105 | return INT_FLOAT_CONVERSION_BADNESS; | |
4106 | default: | |
4107 | return INCOMPATIBLE_TYPE_BADNESS; | |
4108 | } | |
4109 | break; | |
4110 | case TYPE_CODE_CHAR: | |
4111 | switch (TYPE_CODE (arg)) | |
4112 | { | |
4113 | case TYPE_CODE_RANGE: | |
4114 | case TYPE_CODE_BOOL: | |
4115 | case TYPE_CODE_ENUM: | |
3d567982 TT |
4116 | if (TYPE_DECLARED_CLASS (arg)) |
4117 | return INCOMPATIBLE_TYPE_BADNESS; | |
1c5cb38e | 4118 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
4119 | case TYPE_CODE_FLT: |
4120 | return INT_FLOAT_CONVERSION_BADNESS; | |
4121 | case TYPE_CODE_INT: | |
4122 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
1c5cb38e | 4123 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
4124 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) |
4125 | return INTEGER_PROMOTION_BADNESS; | |
86a73007 | 4126 | /* fall through */ |
c5aa993b | 4127 | case TYPE_CODE_CHAR: |
7ba81444 MS |
4128 | /* Deal with signed, unsigned, and plain chars for C++ and |
4129 | with int cases falling through from previous case. */ | |
c5aa993b JM |
4130 | if (TYPE_NOSIGN (parm)) |
4131 | { | |
4132 | if (TYPE_NOSIGN (arg)) | |
6403aeea | 4133 | return EXACT_MATCH_BADNESS; |
c5aa993b | 4134 | else |
1c5cb38e | 4135 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
4136 | } |
4137 | else if (TYPE_UNSIGNED (parm)) | |
4138 | { | |
4139 | if (TYPE_UNSIGNED (arg)) | |
6403aeea | 4140 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
4141 | else |
4142 | return INTEGER_PROMOTION_BADNESS; | |
4143 | } | |
4144 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
6403aeea | 4145 | return EXACT_MATCH_BADNESS; |
c5aa993b | 4146 | else |
1c5cb38e | 4147 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
4148 | default: |
4149 | return INCOMPATIBLE_TYPE_BADNESS; | |
4150 | } | |
4151 | break; | |
4152 | case TYPE_CODE_RANGE: | |
4153 | switch (TYPE_CODE (arg)) | |
4154 | { | |
4155 | case TYPE_CODE_INT: | |
4156 | case TYPE_CODE_CHAR: | |
4157 | case TYPE_CODE_RANGE: | |
4158 | case TYPE_CODE_BOOL: | |
4159 | case TYPE_CODE_ENUM: | |
1c5cb38e | 4160 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
4161 | case TYPE_CODE_FLT: |
4162 | return INT_FLOAT_CONVERSION_BADNESS; | |
4163 | default: | |
4164 | return INCOMPATIBLE_TYPE_BADNESS; | |
4165 | } | |
4166 | break; | |
4167 | case TYPE_CODE_BOOL: | |
4168 | switch (TYPE_CODE (arg)) | |
4169 | { | |
5b4f6e25 KS |
4170 | /* n3290 draft, section 4.12.1 (conv.bool): |
4171 | ||
4172 | "A prvalue of arithmetic, unscoped enumeration, pointer, or | |
4173 | pointer to member type can be converted to a prvalue of type | |
4174 | bool. A zero value, null pointer value, or null member pointer | |
4175 | value is converted to false; any other value is converted to | |
4176 | true. A prvalue of type std::nullptr_t can be converted to a | |
4177 | prvalue of type bool; the resulting value is false." */ | |
c5aa993b JM |
4178 | case TYPE_CODE_INT: |
4179 | case TYPE_CODE_CHAR: | |
c5aa993b JM |
4180 | case TYPE_CODE_ENUM: |
4181 | case TYPE_CODE_FLT: | |
5b4f6e25 | 4182 | case TYPE_CODE_MEMBERPTR: |
c5aa993b | 4183 | case TYPE_CODE_PTR: |
5b4f6e25 KS |
4184 | return BOOL_CONVERSION_BADNESS; |
4185 | case TYPE_CODE_RANGE: | |
4186 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 4187 | case TYPE_CODE_BOOL: |
6403aeea | 4188 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
4189 | default: |
4190 | return INCOMPATIBLE_TYPE_BADNESS; | |
4191 | } | |
4192 | break; | |
4193 | case TYPE_CODE_FLT: | |
4194 | switch (TYPE_CODE (arg)) | |
4195 | { | |
4196 | case TYPE_CODE_FLT: | |
4197 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
4198 | return FLOAT_PROMOTION_BADNESS; | |
4199 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
6403aeea | 4200 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
4201 | else |
4202 | return FLOAT_CONVERSION_BADNESS; | |
4203 | case TYPE_CODE_INT: | |
4204 | case TYPE_CODE_BOOL: | |
4205 | case TYPE_CODE_ENUM: | |
4206 | case TYPE_CODE_RANGE: | |
4207 | case TYPE_CODE_CHAR: | |
4208 | return INT_FLOAT_CONVERSION_BADNESS; | |
4209 | default: | |
4210 | return INCOMPATIBLE_TYPE_BADNESS; | |
4211 | } | |
4212 | break; | |
4213 | case TYPE_CODE_COMPLEX: | |
4214 | switch (TYPE_CODE (arg)) | |
7ba81444 | 4215 | { /* Strictly not needed for C++, but... */ |
c5aa993b JM |
4216 | case TYPE_CODE_FLT: |
4217 | return FLOAT_PROMOTION_BADNESS; | |
4218 | case TYPE_CODE_COMPLEX: | |
6403aeea | 4219 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
4220 | default: |
4221 | return INCOMPATIBLE_TYPE_BADNESS; | |
4222 | } | |
4223 | break; | |
4224 | case TYPE_CODE_STRUCT: | |
c5aa993b JM |
4225 | switch (TYPE_CODE (arg)) |
4226 | { | |
4227 | case TYPE_CODE_STRUCT: | |
4228 | /* Check for derivation */ | |
a9d5ef47 SW |
4229 | rank.subrank = distance_to_ancestor (parm, arg, 0); |
4230 | if (rank.subrank >= 0) | |
4231 | return sum_ranks (BASE_CONVERSION_BADNESS, rank); | |
86a73007 | 4232 | /* fall through */ |
c5aa993b JM |
4233 | default: |
4234 | return INCOMPATIBLE_TYPE_BADNESS; | |
4235 | } | |
4236 | break; | |
4237 | case TYPE_CODE_UNION: | |
4238 | switch (TYPE_CODE (arg)) | |
4239 | { | |
4240 | case TYPE_CODE_UNION: | |
4241 | default: | |
4242 | return INCOMPATIBLE_TYPE_BADNESS; | |
4243 | } | |
4244 | break; | |
0d5de010 | 4245 | case TYPE_CODE_MEMBERPTR: |
c5aa993b JM |
4246 | switch (TYPE_CODE (arg)) |
4247 | { | |
4248 | default: | |
4249 | return INCOMPATIBLE_TYPE_BADNESS; | |
4250 | } | |
4251 | break; | |
4252 | case TYPE_CODE_METHOD: | |
4253 | switch (TYPE_CODE (arg)) | |
4254 | { | |
4255 | ||
4256 | default: | |
4257 | return INCOMPATIBLE_TYPE_BADNESS; | |
4258 | } | |
4259 | break; | |
4260 | case TYPE_CODE_REF: | |
4261 | switch (TYPE_CODE (arg)) | |
4262 | { | |
4263 | ||
4264 | default: | |
4265 | return INCOMPATIBLE_TYPE_BADNESS; | |
4266 | } | |
4267 | ||
4268 | break; | |
4269 | case TYPE_CODE_SET: | |
4270 | switch (TYPE_CODE (arg)) | |
4271 | { | |
4272 | /* Not in C++ */ | |
4273 | case TYPE_CODE_SET: | |
7ba81444 | 4274 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), |
da096638 | 4275 | TYPE_FIELD_TYPE (arg, 0), NULL); |
c5aa993b JM |
4276 | default: |
4277 | return INCOMPATIBLE_TYPE_BADNESS; | |
4278 | } | |
4279 | break; | |
4280 | case TYPE_CODE_VOID: | |
4281 | default: | |
4282 | return INCOMPATIBLE_TYPE_BADNESS; | |
4283 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
4284 | } |
4285 | ||
0963b4bd | 4286 | /* End of functions for overload resolution. */ |
5212577a DE |
4287 | \f |
4288 | /* Routines to pretty-print types. */ | |
c906108c | 4289 | |
c906108c | 4290 | static void |
fba45db2 | 4291 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
4292 | { |
4293 | int bitno; | |
4294 | ||
4295 | for (bitno = 0; bitno < nbits; bitno++) | |
4296 | { | |
4297 | if ((bitno % 8) == 0) | |
4298 | { | |
4299 | puts_filtered (" "); | |
4300 | } | |
4301 | if (B_TST (bits, bitno)) | |
a3f17187 | 4302 | printf_filtered (("1")); |
c906108c | 4303 | else |
a3f17187 | 4304 | printf_filtered (("0")); |
c906108c SS |
4305 | } |
4306 | } | |
4307 | ||
ad2f7632 | 4308 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
4309 | include it since we may get into a infinitely recursive |
4310 | situation. */ | |
c906108c SS |
4311 | |
4312 | static void | |
4c9e8482 | 4313 | print_args (struct field *args, int nargs, int spaces) |
c906108c SS |
4314 | { |
4315 | if (args != NULL) | |
4316 | { | |
ad2f7632 DJ |
4317 | int i; |
4318 | ||
4319 | for (i = 0; i < nargs; i++) | |
4c9e8482 DE |
4320 | { |
4321 | printfi_filtered (spaces, "[%d] name '%s'\n", i, | |
4322 | args[i].name != NULL ? args[i].name : "<NULL>"); | |
4323 | recursive_dump_type (args[i].type, spaces + 2); | |
4324 | } | |
c906108c SS |
4325 | } |
4326 | } | |
4327 | ||
d6a843b5 JK |
4328 | int |
4329 | field_is_static (struct field *f) | |
4330 | { | |
4331 | /* "static" fields are the fields whose location is not relative | |
4332 | to the address of the enclosing struct. It would be nice to | |
4333 | have a dedicated flag that would be set for static fields when | |
4334 | the type is being created. But in practice, checking the field | |
254e6b9e | 4335 | loc_kind should give us an accurate answer. */ |
d6a843b5 JK |
4336 | return (FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSNAME |
4337 | || FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSADDR); | |
4338 | } | |
4339 | ||
c906108c | 4340 | static void |
fba45db2 | 4341 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
4342 | { |
4343 | int method_idx; | |
4344 | int overload_idx; | |
4345 | struct fn_field *f; | |
4346 | ||
4347 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 4348 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
4349 | printf_filtered ("\n"); |
4350 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
4351 | { | |
4352 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
4353 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
4354 | method_idx, | |
4355 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
4356 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
4357 | gdb_stdout); | |
a3f17187 | 4358 | printf_filtered (_(") length %d\n"), |
c906108c SS |
4359 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
4360 | for (overload_idx = 0; | |
4361 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
4362 | overload_idx++) | |
4363 | { | |
4364 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
4365 | overload_idx, | |
4366 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
4367 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
4368 | gdb_stdout); | |
c906108c SS |
4369 | printf_filtered (")\n"); |
4370 | printfi_filtered (spaces + 8, "type "); | |
7ba81444 MS |
4371 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
4372 | gdb_stdout); | |
c906108c SS |
4373 | printf_filtered ("\n"); |
4374 | ||
4375 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
4376 | spaces + 8 + 2); | |
4377 | ||
4378 | printfi_filtered (spaces + 8, "args "); | |
7ba81444 MS |
4379 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
4380 | gdb_stdout); | |
c906108c | 4381 | printf_filtered ("\n"); |
4c9e8482 DE |
4382 | print_args (TYPE_FN_FIELD_ARGS (f, overload_idx), |
4383 | TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, overload_idx)), | |
4384 | spaces + 8 + 2); | |
c906108c | 4385 | printfi_filtered (spaces + 8, "fcontext "); |
d4f3574e SS |
4386 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
4387 | gdb_stdout); | |
c906108c SS |
4388 | printf_filtered ("\n"); |
4389 | ||
4390 | printfi_filtered (spaces + 8, "is_const %d\n", | |
4391 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
4392 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
4393 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
4394 | printfi_filtered (spaces + 8, "is_private %d\n", | |
4395 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
4396 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
4397 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
4398 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
4399 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
4400 | printfi_filtered (spaces + 8, "voffset %u\n", | |
4401 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
4402 | } | |
4403 | } | |
4404 | } | |
4405 | ||
4406 | static void | |
fba45db2 | 4407 | print_cplus_stuff (struct type *type, int spaces) |
c906108c | 4408 | { |
ae6ae975 DE |
4409 | printfi_filtered (spaces, "vptr_fieldno %d\n", TYPE_VPTR_FIELDNO (type)); |
4410 | printfi_filtered (spaces, "vptr_basetype "); | |
4411 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); | |
4412 | puts_filtered ("\n"); | |
4413 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
4414 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
4415 | ||
c906108c SS |
4416 | printfi_filtered (spaces, "n_baseclasses %d\n", |
4417 | TYPE_N_BASECLASSES (type)); | |
4418 | printfi_filtered (spaces, "nfn_fields %d\n", | |
4419 | TYPE_NFN_FIELDS (type)); | |
c906108c SS |
4420 | if (TYPE_N_BASECLASSES (type) > 0) |
4421 | { | |
4422 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
4423 | TYPE_N_BASECLASSES (type)); | |
7ba81444 MS |
4424 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
4425 | gdb_stdout); | |
c906108c SS |
4426 | printf_filtered (")"); |
4427 | ||
4428 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
4429 | TYPE_N_BASECLASSES (type)); | |
4430 | puts_filtered ("\n"); | |
4431 | } | |
4432 | if (TYPE_NFIELDS (type) > 0) | |
4433 | { | |
4434 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
4435 | { | |
7ba81444 MS |
4436 | printfi_filtered (spaces, |
4437 | "private_field_bits (%d bits at *", | |
c906108c | 4438 | TYPE_NFIELDS (type)); |
7ba81444 MS |
4439 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
4440 | gdb_stdout); | |
c906108c SS |
4441 | printf_filtered (")"); |
4442 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
4443 | TYPE_NFIELDS (type)); | |
4444 | puts_filtered ("\n"); | |
4445 | } | |
4446 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
4447 | { | |
7ba81444 MS |
4448 | printfi_filtered (spaces, |
4449 | "protected_field_bits (%d bits at *", | |
c906108c | 4450 | TYPE_NFIELDS (type)); |
7ba81444 MS |
4451 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
4452 | gdb_stdout); | |
c906108c SS |
4453 | printf_filtered (")"); |
4454 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
4455 | TYPE_NFIELDS (type)); | |
4456 | puts_filtered ("\n"); | |
4457 | } | |
4458 | } | |
4459 | if (TYPE_NFN_FIELDS (type) > 0) | |
4460 | { | |
4461 | dump_fn_fieldlists (type, spaces); | |
4462 | } | |
4463 | } | |
4464 | ||
b4ba55a1 JB |
4465 | /* Print the contents of the TYPE's type_specific union, assuming that |
4466 | its type-specific kind is TYPE_SPECIFIC_GNAT_STUFF. */ | |
4467 | ||
4468 | static void | |
4469 | print_gnat_stuff (struct type *type, int spaces) | |
4470 | { | |
4471 | struct type *descriptive_type = TYPE_DESCRIPTIVE_TYPE (type); | |
4472 | ||
8cd00c59 PMR |
4473 | if (descriptive_type == NULL) |
4474 | printfi_filtered (spaces + 2, "no descriptive type\n"); | |
4475 | else | |
4476 | { | |
4477 | printfi_filtered (spaces + 2, "descriptive type\n"); | |
4478 | recursive_dump_type (descriptive_type, spaces + 4); | |
4479 | } | |
b4ba55a1 JB |
4480 | } |
4481 | ||
c906108c SS |
4482 | static struct obstack dont_print_type_obstack; |
4483 | ||
4484 | void | |
fba45db2 | 4485 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
4486 | { |
4487 | int idx; | |
4488 | ||
4489 | if (spaces == 0) | |
4490 | obstack_begin (&dont_print_type_obstack, 0); | |
4491 | ||
4492 | if (TYPE_NFIELDS (type) > 0 | |
b4ba55a1 | 4493 | || (HAVE_CPLUS_STRUCT (type) && TYPE_NFN_FIELDS (type) > 0)) |
c906108c SS |
4494 | { |
4495 | struct type **first_dont_print | |
7ba81444 | 4496 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 4497 | |
7ba81444 MS |
4498 | int i = (struct type **) |
4499 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
4500 | |
4501 | while (--i >= 0) | |
4502 | { | |
4503 | if (type == first_dont_print[i]) | |
4504 | { | |
4505 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 4506 | gdb_print_host_address (type, gdb_stdout); |
a3f17187 | 4507 | printf_filtered (_(" <same as already seen type>\n")); |
c906108c SS |
4508 | return; |
4509 | } | |
4510 | } | |
4511 | ||
4512 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
4513 | } | |
4514 | ||
4515 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 4516 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
4517 | printf_filtered ("\n"); |
4518 | printfi_filtered (spaces, "name '%s' (", | |
4519 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 4520 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c | 4521 | printf_filtered (")\n"); |
c906108c SS |
4522 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
4523 | switch (TYPE_CODE (type)) | |
4524 | { | |
c5aa993b JM |
4525 | case TYPE_CODE_UNDEF: |
4526 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
4527 | break; | |
4528 | case TYPE_CODE_PTR: | |
4529 | printf_filtered ("(TYPE_CODE_PTR)"); | |
4530 | break; | |
4531 | case TYPE_CODE_ARRAY: | |
4532 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
4533 | break; | |
4534 | case TYPE_CODE_STRUCT: | |
4535 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
4536 | break; | |
4537 | case TYPE_CODE_UNION: | |
4538 | printf_filtered ("(TYPE_CODE_UNION)"); | |
4539 | break; | |
4540 | case TYPE_CODE_ENUM: | |
4541 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
4542 | break; | |
4f2aea11 MK |
4543 | case TYPE_CODE_FLAGS: |
4544 | printf_filtered ("(TYPE_CODE_FLAGS)"); | |
4545 | break; | |
c5aa993b JM |
4546 | case TYPE_CODE_FUNC: |
4547 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
4548 | break; | |
4549 | case TYPE_CODE_INT: | |
4550 | printf_filtered ("(TYPE_CODE_INT)"); | |
4551 | break; | |
4552 | case TYPE_CODE_FLT: | |
4553 | printf_filtered ("(TYPE_CODE_FLT)"); | |
4554 | break; | |
4555 | case TYPE_CODE_VOID: | |
4556 | printf_filtered ("(TYPE_CODE_VOID)"); | |
4557 | break; | |
4558 | case TYPE_CODE_SET: | |
4559 | printf_filtered ("(TYPE_CODE_SET)"); | |
4560 | break; | |
4561 | case TYPE_CODE_RANGE: | |
4562 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
4563 | break; | |
4564 | case TYPE_CODE_STRING: | |
4565 | printf_filtered ("(TYPE_CODE_STRING)"); | |
4566 | break; | |
4567 | case TYPE_CODE_ERROR: | |
4568 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
4569 | break; | |
0d5de010 DJ |
4570 | case TYPE_CODE_MEMBERPTR: |
4571 | printf_filtered ("(TYPE_CODE_MEMBERPTR)"); | |
4572 | break; | |
4573 | case TYPE_CODE_METHODPTR: | |
4574 | printf_filtered ("(TYPE_CODE_METHODPTR)"); | |
c5aa993b JM |
4575 | break; |
4576 | case TYPE_CODE_METHOD: | |
4577 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
4578 | break; | |
4579 | case TYPE_CODE_REF: | |
4580 | printf_filtered ("(TYPE_CODE_REF)"); | |
4581 | break; | |
4582 | case TYPE_CODE_CHAR: | |
4583 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
4584 | break; | |
4585 | case TYPE_CODE_BOOL: | |
4586 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
4587 | break; | |
e9e79dd9 FF |
4588 | case TYPE_CODE_COMPLEX: |
4589 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
4590 | break; | |
c5aa993b JM |
4591 | case TYPE_CODE_TYPEDEF: |
4592 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
4593 | break; | |
5c4e30ca DC |
4594 | case TYPE_CODE_NAMESPACE: |
4595 | printf_filtered ("(TYPE_CODE_NAMESPACE)"); | |
4596 | break; | |
c5aa993b JM |
4597 | default: |
4598 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
4599 | break; | |
c906108c SS |
4600 | } |
4601 | puts_filtered ("\n"); | |
4602 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
e9bb382b UW |
4603 | if (TYPE_OBJFILE_OWNED (type)) |
4604 | { | |
4605 | printfi_filtered (spaces, "objfile "); | |
4606 | gdb_print_host_address (TYPE_OWNER (type).objfile, gdb_stdout); | |
4607 | } | |
4608 | else | |
4609 | { | |
4610 | printfi_filtered (spaces, "gdbarch "); | |
4611 | gdb_print_host_address (TYPE_OWNER (type).gdbarch, gdb_stdout); | |
4612 | } | |
c906108c SS |
4613 | printf_filtered ("\n"); |
4614 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 4615 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
4616 | printf_filtered ("\n"); |
4617 | if (TYPE_TARGET_TYPE (type) != NULL) | |
4618 | { | |
4619 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
4620 | } | |
4621 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 4622 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
4623 | printf_filtered ("\n"); |
4624 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 4625 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 4626 | printf_filtered ("\n"); |
2fdde8f8 DJ |
4627 | printfi_filtered (spaces, "type_chain "); |
4628 | gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); | |
e9e79dd9 | 4629 | printf_filtered ("\n"); |
7ba81444 MS |
4630 | printfi_filtered (spaces, "instance_flags 0x%x", |
4631 | TYPE_INSTANCE_FLAGS (type)); | |
2fdde8f8 DJ |
4632 | if (TYPE_CONST (type)) |
4633 | { | |
a9ff5f12 | 4634 | puts_filtered (" TYPE_CONST"); |
2fdde8f8 DJ |
4635 | } |
4636 | if (TYPE_VOLATILE (type)) | |
4637 | { | |
a9ff5f12 | 4638 | puts_filtered (" TYPE_VOLATILE"); |
2fdde8f8 DJ |
4639 | } |
4640 | if (TYPE_CODE_SPACE (type)) | |
4641 | { | |
a9ff5f12 | 4642 | puts_filtered (" TYPE_CODE_SPACE"); |
2fdde8f8 DJ |
4643 | } |
4644 | if (TYPE_DATA_SPACE (type)) | |
4645 | { | |
a9ff5f12 | 4646 | puts_filtered (" TYPE_DATA_SPACE"); |
2fdde8f8 | 4647 | } |
8b2dbe47 KB |
4648 | if (TYPE_ADDRESS_CLASS_1 (type)) |
4649 | { | |
a9ff5f12 | 4650 | puts_filtered (" TYPE_ADDRESS_CLASS_1"); |
8b2dbe47 KB |
4651 | } |
4652 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
4653 | { | |
a9ff5f12 | 4654 | puts_filtered (" TYPE_ADDRESS_CLASS_2"); |
8b2dbe47 | 4655 | } |
06d66ee9 TT |
4656 | if (TYPE_RESTRICT (type)) |
4657 | { | |
a9ff5f12 | 4658 | puts_filtered (" TYPE_RESTRICT"); |
06d66ee9 | 4659 | } |
a2c2acaf MW |
4660 | if (TYPE_ATOMIC (type)) |
4661 | { | |
a9ff5f12 | 4662 | puts_filtered (" TYPE_ATOMIC"); |
a2c2acaf | 4663 | } |
2fdde8f8 | 4664 | puts_filtered ("\n"); |
876cecd0 TT |
4665 | |
4666 | printfi_filtered (spaces, "flags"); | |
762a036f | 4667 | if (TYPE_UNSIGNED (type)) |
c906108c | 4668 | { |
a9ff5f12 | 4669 | puts_filtered (" TYPE_UNSIGNED"); |
c906108c | 4670 | } |
762a036f FF |
4671 | if (TYPE_NOSIGN (type)) |
4672 | { | |
a9ff5f12 | 4673 | puts_filtered (" TYPE_NOSIGN"); |
762a036f FF |
4674 | } |
4675 | if (TYPE_STUB (type)) | |
c906108c | 4676 | { |
a9ff5f12 | 4677 | puts_filtered (" TYPE_STUB"); |
c906108c | 4678 | } |
762a036f FF |
4679 | if (TYPE_TARGET_STUB (type)) |
4680 | { | |
a9ff5f12 | 4681 | puts_filtered (" TYPE_TARGET_STUB"); |
762a036f | 4682 | } |
762a036f FF |
4683 | if (TYPE_PROTOTYPED (type)) |
4684 | { | |
a9ff5f12 | 4685 | puts_filtered (" TYPE_PROTOTYPED"); |
762a036f FF |
4686 | } |
4687 | if (TYPE_INCOMPLETE (type)) | |
4688 | { | |
a9ff5f12 | 4689 | puts_filtered (" TYPE_INCOMPLETE"); |
762a036f | 4690 | } |
762a036f FF |
4691 | if (TYPE_VARARGS (type)) |
4692 | { | |
a9ff5f12 | 4693 | puts_filtered (" TYPE_VARARGS"); |
762a036f | 4694 | } |
f5f8a009 EZ |
4695 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
4696 | an attribute for the array type, which tells whether or not we | |
4697 | have a vector, instead of a regular array. */ | |
4698 | if (TYPE_VECTOR (type)) | |
4699 | { | |
a9ff5f12 | 4700 | puts_filtered (" TYPE_VECTOR"); |
f5f8a009 | 4701 | } |
876cecd0 TT |
4702 | if (TYPE_FIXED_INSTANCE (type)) |
4703 | { | |
4704 | puts_filtered (" TYPE_FIXED_INSTANCE"); | |
4705 | } | |
4706 | if (TYPE_STUB_SUPPORTED (type)) | |
4707 | { | |
4708 | puts_filtered (" TYPE_STUB_SUPPORTED"); | |
4709 | } | |
4710 | if (TYPE_NOTTEXT (type)) | |
4711 | { | |
4712 | puts_filtered (" TYPE_NOTTEXT"); | |
4713 | } | |
c906108c SS |
4714 | puts_filtered ("\n"); |
4715 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 4716 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
4717 | puts_filtered ("\n"); |
4718 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
4719 | { | |
14e75d8e JK |
4720 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) |
4721 | printfi_filtered (spaces + 2, | |
4722 | "[%d] enumval %s type ", | |
4723 | idx, plongest (TYPE_FIELD_ENUMVAL (type, idx))); | |
4724 | else | |
4725 | printfi_filtered (spaces + 2, | |
6b850546 DT |
4726 | "[%d] bitpos %s bitsize %d type ", |
4727 | idx, plongest (TYPE_FIELD_BITPOS (type, idx)), | |
14e75d8e | 4728 | TYPE_FIELD_BITSIZE (type, idx)); |
d4f3574e | 4729 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
4730 | printf_filtered (" name '%s' (", |
4731 | TYPE_FIELD_NAME (type, idx) != NULL | |
4732 | ? TYPE_FIELD_NAME (type, idx) | |
4733 | : "<NULL>"); | |
d4f3574e | 4734 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
4735 | printf_filtered (")\n"); |
4736 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
4737 | { | |
4738 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
4739 | } | |
4740 | } | |
43bbcdc2 PH |
4741 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
4742 | { | |
4743 | printfi_filtered (spaces, "low %s%s high %s%s\n", | |
4744 | plongest (TYPE_LOW_BOUND (type)), | |
4745 | TYPE_LOW_BOUND_UNDEFINED (type) ? " (undefined)" : "", | |
4746 | plongest (TYPE_HIGH_BOUND (type)), | |
3e43a32a MS |
4747 | TYPE_HIGH_BOUND_UNDEFINED (type) |
4748 | ? " (undefined)" : ""); | |
43bbcdc2 | 4749 | } |
c906108c | 4750 | |
b4ba55a1 JB |
4751 | switch (TYPE_SPECIFIC_FIELD (type)) |
4752 | { | |
4753 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
4754 | printfi_filtered (spaces, "cplus_stuff "); | |
4755 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), | |
4756 | gdb_stdout); | |
4757 | puts_filtered ("\n"); | |
4758 | print_cplus_stuff (type, spaces); | |
4759 | break; | |
8da61cc4 | 4760 | |
b4ba55a1 JB |
4761 | case TYPE_SPECIFIC_GNAT_STUFF: |
4762 | printfi_filtered (spaces, "gnat_stuff "); | |
4763 | gdb_print_host_address (TYPE_GNAT_SPECIFIC (type), gdb_stdout); | |
4764 | puts_filtered ("\n"); | |
4765 | print_gnat_stuff (type, spaces); | |
4766 | break; | |
701c159d | 4767 | |
b4ba55a1 JB |
4768 | case TYPE_SPECIFIC_FLOATFORMAT: |
4769 | printfi_filtered (spaces, "floatformat "); | |
0db7851f UW |
4770 | if (TYPE_FLOATFORMAT (type) == NULL |
4771 | || TYPE_FLOATFORMAT (type)->name == NULL) | |
b4ba55a1 JB |
4772 | puts_filtered ("(null)"); |
4773 | else | |
0db7851f | 4774 | puts_filtered (TYPE_FLOATFORMAT (type)->name); |
b4ba55a1 JB |
4775 | puts_filtered ("\n"); |
4776 | break; | |
c906108c | 4777 | |
b6cdc2c1 | 4778 | case TYPE_SPECIFIC_FUNC: |
b4ba55a1 JB |
4779 | printfi_filtered (spaces, "calling_convention %d\n", |
4780 | TYPE_CALLING_CONVENTION (type)); | |
b6cdc2c1 | 4781 | /* tail_call_list is not printed. */ |
b4ba55a1 | 4782 | break; |
09e2d7c7 DE |
4783 | |
4784 | case TYPE_SPECIFIC_SELF_TYPE: | |
4785 | printfi_filtered (spaces, "self_type "); | |
4786 | gdb_print_host_address (TYPE_SELF_TYPE (type), gdb_stdout); | |
4787 | puts_filtered ("\n"); | |
4788 | break; | |
c906108c | 4789 | } |
b4ba55a1 | 4790 | |
c906108c SS |
4791 | if (spaces == 0) |
4792 | obstack_free (&dont_print_type_obstack, NULL); | |
4793 | } | |
5212577a | 4794 | \f |
ae5a43e0 DJ |
4795 | /* Trivial helpers for the libiberty hash table, for mapping one |
4796 | type to another. */ | |
4797 | ||
fd90ace4 | 4798 | struct type_pair : public allocate_on_obstack |
ae5a43e0 | 4799 | { |
fd90ace4 YQ |
4800 | type_pair (struct type *old_, struct type *newobj_) |
4801 | : old (old_), newobj (newobj_) | |
4802 | {} | |
4803 | ||
4804 | struct type * const old, * const newobj; | |
ae5a43e0 DJ |
4805 | }; |
4806 | ||
4807 | static hashval_t | |
4808 | type_pair_hash (const void *item) | |
4809 | { | |
9a3c8263 | 4810 | const struct type_pair *pair = (const struct type_pair *) item; |
d8734c88 | 4811 | |
ae5a43e0 DJ |
4812 | return htab_hash_pointer (pair->old); |
4813 | } | |
4814 | ||
4815 | static int | |
4816 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
4817 | { | |
9a3c8263 SM |
4818 | const struct type_pair *lhs = (const struct type_pair *) item_lhs; |
4819 | const struct type_pair *rhs = (const struct type_pair *) item_rhs; | |
d8734c88 | 4820 | |
ae5a43e0 DJ |
4821 | return lhs->old == rhs->old; |
4822 | } | |
4823 | ||
4824 | /* Allocate the hash table used by copy_type_recursive to walk | |
4825 | types without duplicates. We use OBJFILE's obstack, because | |
4826 | OBJFILE is about to be deleted. */ | |
4827 | ||
4828 | htab_t | |
4829 | create_copied_types_hash (struct objfile *objfile) | |
4830 | { | |
4831 | return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, | |
4832 | NULL, &objfile->objfile_obstack, | |
4833 | hashtab_obstack_allocate, | |
4834 | dummy_obstack_deallocate); | |
4835 | } | |
4836 | ||
d9823cbb KB |
4837 | /* Recursively copy (deep copy) a dynamic attribute list of a type. */ |
4838 | ||
4839 | static struct dynamic_prop_list * | |
4840 | copy_dynamic_prop_list (struct obstack *objfile_obstack, | |
4841 | struct dynamic_prop_list *list) | |
4842 | { | |
4843 | struct dynamic_prop_list *copy = list; | |
4844 | struct dynamic_prop_list **node_ptr = © | |
4845 | ||
4846 | while (*node_ptr != NULL) | |
4847 | { | |
4848 | struct dynamic_prop_list *node_copy; | |
4849 | ||
224c3ddb SM |
4850 | node_copy = ((struct dynamic_prop_list *) |
4851 | obstack_copy (objfile_obstack, *node_ptr, | |
4852 | sizeof (struct dynamic_prop_list))); | |
283a9958 | 4853 | node_copy->prop = (*node_ptr)->prop; |
d9823cbb KB |
4854 | *node_ptr = node_copy; |
4855 | ||
4856 | node_ptr = &node_copy->next; | |
4857 | } | |
4858 | ||
4859 | return copy; | |
4860 | } | |
4861 | ||
7ba81444 | 4862 | /* Recursively copy (deep copy) TYPE, if it is associated with |
eed8b28a PP |
4863 | OBJFILE. Return a new type owned by the gdbarch associated with the type, a |
4864 | saved type if we have already visited TYPE (using COPIED_TYPES), or TYPE if | |
4865 | it is not associated with OBJFILE. */ | |
ae5a43e0 DJ |
4866 | |
4867 | struct type * | |
7ba81444 MS |
4868 | copy_type_recursive (struct objfile *objfile, |
4869 | struct type *type, | |
ae5a43e0 DJ |
4870 | htab_t copied_types) |
4871 | { | |
ae5a43e0 DJ |
4872 | void **slot; |
4873 | struct type *new_type; | |
4874 | ||
e9bb382b | 4875 | if (! TYPE_OBJFILE_OWNED (type)) |
ae5a43e0 DJ |
4876 | return type; |
4877 | ||
7ba81444 MS |
4878 | /* This type shouldn't be pointing to any types in other objfiles; |
4879 | if it did, the type might disappear unexpectedly. */ | |
ae5a43e0 DJ |
4880 | gdb_assert (TYPE_OBJFILE (type) == objfile); |
4881 | ||
fd90ace4 YQ |
4882 | struct type_pair pair (type, nullptr); |
4883 | ||
ae5a43e0 DJ |
4884 | slot = htab_find_slot (copied_types, &pair, INSERT); |
4885 | if (*slot != NULL) | |
fe978cb0 | 4886 | return ((struct type_pair *) *slot)->newobj; |
ae5a43e0 | 4887 | |
e9bb382b | 4888 | new_type = alloc_type_arch (get_type_arch (type)); |
ae5a43e0 DJ |
4889 | |
4890 | /* We must add the new type to the hash table immediately, in case | |
4891 | we encounter this type again during a recursive call below. */ | |
fd90ace4 YQ |
4892 | struct type_pair *stored |
4893 | = new (&objfile->objfile_obstack) struct type_pair (type, new_type); | |
4894 | ||
ae5a43e0 DJ |
4895 | *slot = stored; |
4896 | ||
876cecd0 TT |
4897 | /* Copy the common fields of types. For the main type, we simply |
4898 | copy the entire thing and then update specific fields as needed. */ | |
4899 | *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type); | |
e9bb382b UW |
4900 | TYPE_OBJFILE_OWNED (new_type) = 0; |
4901 | TYPE_OWNER (new_type).gdbarch = get_type_arch (type); | |
876cecd0 | 4902 | |
ae5a43e0 DJ |
4903 | if (TYPE_NAME (type)) |
4904 | TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type)); | |
ae5a43e0 DJ |
4905 | |
4906 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); | |
4907 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
4908 | ||
4909 | /* Copy the fields. */ | |
ae5a43e0 DJ |
4910 | if (TYPE_NFIELDS (type)) |
4911 | { | |
4912 | int i, nfields; | |
4913 | ||
4914 | nfields = TYPE_NFIELDS (type); | |
2fabdf33 AB |
4915 | TYPE_FIELDS (new_type) = (struct field *) |
4916 | TYPE_ZALLOC (new_type, nfields * sizeof (struct field)); | |
ae5a43e0 DJ |
4917 | for (i = 0; i < nfields; i++) |
4918 | { | |
7ba81444 MS |
4919 | TYPE_FIELD_ARTIFICIAL (new_type, i) = |
4920 | TYPE_FIELD_ARTIFICIAL (type, i); | |
ae5a43e0 DJ |
4921 | TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
4922 | if (TYPE_FIELD_TYPE (type, i)) | |
4923 | TYPE_FIELD_TYPE (new_type, i) | |
4924 | = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i), | |
4925 | copied_types); | |
4926 | if (TYPE_FIELD_NAME (type, i)) | |
7ba81444 MS |
4927 | TYPE_FIELD_NAME (new_type, i) = |
4928 | xstrdup (TYPE_FIELD_NAME (type, i)); | |
d6a843b5 | 4929 | switch (TYPE_FIELD_LOC_KIND (type, i)) |
ae5a43e0 | 4930 | { |
d6a843b5 JK |
4931 | case FIELD_LOC_KIND_BITPOS: |
4932 | SET_FIELD_BITPOS (TYPE_FIELD (new_type, i), | |
4933 | TYPE_FIELD_BITPOS (type, i)); | |
4934 | break; | |
14e75d8e JK |
4935 | case FIELD_LOC_KIND_ENUMVAL: |
4936 | SET_FIELD_ENUMVAL (TYPE_FIELD (new_type, i), | |
4937 | TYPE_FIELD_ENUMVAL (type, i)); | |
4938 | break; | |
d6a843b5 JK |
4939 | case FIELD_LOC_KIND_PHYSADDR: |
4940 | SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i), | |
4941 | TYPE_FIELD_STATIC_PHYSADDR (type, i)); | |
4942 | break; | |
4943 | case FIELD_LOC_KIND_PHYSNAME: | |
4944 | SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i), | |
4945 | xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, | |
4946 | i))); | |
4947 | break; | |
4948 | default: | |
4949 | internal_error (__FILE__, __LINE__, | |
4950 | _("Unexpected type field location kind: %d"), | |
4951 | TYPE_FIELD_LOC_KIND (type, i)); | |
ae5a43e0 DJ |
4952 | } |
4953 | } | |
4954 | } | |
4955 | ||
0963b4bd | 4956 | /* For range types, copy the bounds information. */ |
43bbcdc2 PH |
4957 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
4958 | { | |
2fabdf33 AB |
4959 | TYPE_RANGE_DATA (new_type) = (struct range_bounds *) |
4960 | TYPE_ALLOC (new_type, sizeof (struct range_bounds)); | |
43bbcdc2 PH |
4961 | *TYPE_RANGE_DATA (new_type) = *TYPE_RANGE_DATA (type); |
4962 | } | |
4963 | ||
d9823cbb KB |
4964 | if (TYPE_DYN_PROP_LIST (type) != NULL) |
4965 | TYPE_DYN_PROP_LIST (new_type) | |
4966 | = copy_dynamic_prop_list (&objfile->objfile_obstack, | |
4967 | TYPE_DYN_PROP_LIST (type)); | |
4968 | ||
3cdcd0ce | 4969 | |
ae5a43e0 DJ |
4970 | /* Copy pointers to other types. */ |
4971 | if (TYPE_TARGET_TYPE (type)) | |
7ba81444 MS |
4972 | TYPE_TARGET_TYPE (new_type) = |
4973 | copy_type_recursive (objfile, | |
4974 | TYPE_TARGET_TYPE (type), | |
4975 | copied_types); | |
f6b3afbf | 4976 | |
ae5a43e0 DJ |
4977 | /* Maybe copy the type_specific bits. |
4978 | ||
4979 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
4980 | base classes and methods. There's no fundamental reason why we | |
4981 | can't, but at the moment it is not needed. */ | |
4982 | ||
f6b3afbf DE |
4983 | switch (TYPE_SPECIFIC_FIELD (type)) |
4984 | { | |
4985 | case TYPE_SPECIFIC_NONE: | |
4986 | break; | |
4987 | case TYPE_SPECIFIC_FUNC: | |
4988 | INIT_FUNC_SPECIFIC (new_type); | |
4989 | TYPE_CALLING_CONVENTION (new_type) = TYPE_CALLING_CONVENTION (type); | |
4990 | TYPE_NO_RETURN (new_type) = TYPE_NO_RETURN (type); | |
4991 | TYPE_TAIL_CALL_LIST (new_type) = NULL; | |
4992 | break; | |
4993 | case TYPE_SPECIFIC_FLOATFORMAT: | |
4994 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); | |
4995 | break; | |
4996 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
4997 | INIT_CPLUS_SPECIFIC (new_type); | |
4998 | break; | |
4999 | case TYPE_SPECIFIC_GNAT_STUFF: | |
5000 | INIT_GNAT_SPECIFIC (new_type); | |
5001 | break; | |
09e2d7c7 DE |
5002 | case TYPE_SPECIFIC_SELF_TYPE: |
5003 | set_type_self_type (new_type, | |
5004 | copy_type_recursive (objfile, TYPE_SELF_TYPE (type), | |
5005 | copied_types)); | |
5006 | break; | |
f6b3afbf DE |
5007 | default: |
5008 | gdb_assert_not_reached ("bad type_specific_kind"); | |
5009 | } | |
ae5a43e0 DJ |
5010 | |
5011 | return new_type; | |
5012 | } | |
5013 | ||
4af88198 JB |
5014 | /* Make a copy of the given TYPE, except that the pointer & reference |
5015 | types are not preserved. | |
5016 | ||
5017 | This function assumes that the given type has an associated objfile. | |
5018 | This objfile is used to allocate the new type. */ | |
5019 | ||
5020 | struct type * | |
5021 | copy_type (const struct type *type) | |
5022 | { | |
5023 | struct type *new_type; | |
5024 | ||
e9bb382b | 5025 | gdb_assert (TYPE_OBJFILE_OWNED (type)); |
4af88198 | 5026 | |
e9bb382b | 5027 | new_type = alloc_type_copy (type); |
4af88198 JB |
5028 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); |
5029 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
5030 | memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type), | |
5031 | sizeof (struct main_type)); | |
d9823cbb KB |
5032 | if (TYPE_DYN_PROP_LIST (type) != NULL) |
5033 | TYPE_DYN_PROP_LIST (new_type) | |
5034 | = copy_dynamic_prop_list (&TYPE_OBJFILE (type) -> objfile_obstack, | |
5035 | TYPE_DYN_PROP_LIST (type)); | |
4af88198 JB |
5036 | |
5037 | return new_type; | |
5038 | } | |
5212577a | 5039 | \f |
e9bb382b UW |
5040 | /* Helper functions to initialize architecture-specific types. */ |
5041 | ||
5042 | /* Allocate a type structure associated with GDBARCH and set its | |
5043 | CODE, LENGTH, and NAME fields. */ | |
5212577a | 5044 | |
e9bb382b UW |
5045 | struct type * |
5046 | arch_type (struct gdbarch *gdbarch, | |
77b7c781 | 5047 | enum type_code code, int bit, const char *name) |
e9bb382b UW |
5048 | { |
5049 | struct type *type; | |
5050 | ||
5051 | type = alloc_type_arch (gdbarch); | |
ae438bc5 | 5052 | set_type_code (type, code); |
77b7c781 UW |
5053 | gdb_assert ((bit % TARGET_CHAR_BIT) == 0); |
5054 | TYPE_LENGTH (type) = bit / TARGET_CHAR_BIT; | |
e9bb382b UW |
5055 | |
5056 | if (name) | |
6c214e7c | 5057 | TYPE_NAME (type) = gdbarch_obstack_strdup (gdbarch, name); |
e9bb382b UW |
5058 | |
5059 | return type; | |
5060 | } | |
5061 | ||
5062 | /* Allocate a TYPE_CODE_INT type structure associated with GDBARCH. | |
5063 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
5064 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 5065 | |
e9bb382b UW |
5066 | struct type * |
5067 | arch_integer_type (struct gdbarch *gdbarch, | |
695bfa52 | 5068 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
5069 | { |
5070 | struct type *t; | |
5071 | ||
77b7c781 | 5072 | t = arch_type (gdbarch, TYPE_CODE_INT, bit, name); |
e9bb382b UW |
5073 | if (unsigned_p) |
5074 | TYPE_UNSIGNED (t) = 1; | |
e9bb382b UW |
5075 | |
5076 | return t; | |
5077 | } | |
5078 | ||
5079 | /* Allocate a TYPE_CODE_CHAR type structure associated with GDBARCH. | |
5080 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
5081 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 5082 | |
e9bb382b UW |
5083 | struct type * |
5084 | arch_character_type (struct gdbarch *gdbarch, | |
695bfa52 | 5085 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
5086 | { |
5087 | struct type *t; | |
5088 | ||
77b7c781 | 5089 | t = arch_type (gdbarch, TYPE_CODE_CHAR, bit, name); |
e9bb382b UW |
5090 | if (unsigned_p) |
5091 | TYPE_UNSIGNED (t) = 1; | |
5092 | ||
5093 | return t; | |
5094 | } | |
5095 | ||
5096 | /* Allocate a TYPE_CODE_BOOL type structure associated with GDBARCH. | |
5097 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
5098 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 5099 | |
e9bb382b UW |
5100 | struct type * |
5101 | arch_boolean_type (struct gdbarch *gdbarch, | |
695bfa52 | 5102 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
5103 | { |
5104 | struct type *t; | |
5105 | ||
77b7c781 | 5106 | t = arch_type (gdbarch, TYPE_CODE_BOOL, bit, name); |
e9bb382b UW |
5107 | if (unsigned_p) |
5108 | TYPE_UNSIGNED (t) = 1; | |
5109 | ||
5110 | return t; | |
5111 | } | |
5112 | ||
5113 | /* Allocate a TYPE_CODE_FLT type structure associated with GDBARCH. | |
5114 | BIT is the type size in bits; if BIT equals -1, the size is | |
5115 | determined by the floatformat. NAME is the type name. Set the | |
5116 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
5212577a | 5117 | |
27067745 | 5118 | struct type * |
e9bb382b | 5119 | arch_float_type (struct gdbarch *gdbarch, |
695bfa52 TT |
5120 | int bit, const char *name, |
5121 | const struct floatformat **floatformats) | |
8da61cc4 | 5122 | { |
0db7851f | 5123 | const struct floatformat *fmt = floatformats[gdbarch_byte_order (gdbarch)]; |
8da61cc4 DJ |
5124 | struct type *t; |
5125 | ||
0db7851f | 5126 | bit = verify_floatformat (bit, fmt); |
77b7c781 | 5127 | t = arch_type (gdbarch, TYPE_CODE_FLT, bit, name); |
0db7851f | 5128 | TYPE_FLOATFORMAT (t) = fmt; |
b79497cb | 5129 | |
8da61cc4 DJ |
5130 | return t; |
5131 | } | |
5132 | ||
88dfca6c UW |
5133 | /* Allocate a TYPE_CODE_DECFLOAT type structure associated with GDBARCH. |
5134 | BIT is the type size in bits. NAME is the type name. */ | |
5135 | ||
5136 | struct type * | |
5137 | arch_decfloat_type (struct gdbarch *gdbarch, int bit, const char *name) | |
5138 | { | |
5139 | struct type *t; | |
5140 | ||
77b7c781 | 5141 | t = arch_type (gdbarch, TYPE_CODE_DECFLOAT, bit, name); |
88dfca6c UW |
5142 | return t; |
5143 | } | |
5144 | ||
e9bb382b UW |
5145 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with GDBARCH. |
5146 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
5212577a | 5147 | |
27067745 | 5148 | struct type * |
e9bb382b | 5149 | arch_complex_type (struct gdbarch *gdbarch, |
695bfa52 | 5150 | const char *name, struct type *target_type) |
27067745 UW |
5151 | { |
5152 | struct type *t; | |
d8734c88 | 5153 | |
e9bb382b | 5154 | t = arch_type (gdbarch, TYPE_CODE_COMPLEX, |
77b7c781 | 5155 | 2 * TYPE_LENGTH (target_type) * TARGET_CHAR_BIT, name); |
27067745 UW |
5156 | TYPE_TARGET_TYPE (t) = target_type; |
5157 | return t; | |
5158 | } | |
5159 | ||
88dfca6c UW |
5160 | /* Allocate a TYPE_CODE_PTR type structure associated with GDBARCH. |
5161 | BIT is the pointer type size in bits. NAME is the type name. | |
5162 | TARGET_TYPE is the pointer target type. Always sets the pointer type's | |
5163 | TYPE_UNSIGNED flag. */ | |
5164 | ||
5165 | struct type * | |
5166 | arch_pointer_type (struct gdbarch *gdbarch, | |
5167 | int bit, const char *name, struct type *target_type) | |
5168 | { | |
5169 | struct type *t; | |
5170 | ||
77b7c781 | 5171 | t = arch_type (gdbarch, TYPE_CODE_PTR, bit, name); |
88dfca6c UW |
5172 | TYPE_TARGET_TYPE (t) = target_type; |
5173 | TYPE_UNSIGNED (t) = 1; | |
5174 | return t; | |
5175 | } | |
5176 | ||
e9bb382b | 5177 | /* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH. |
77b7c781 | 5178 | NAME is the type name. BIT is the size of the flag word in bits. */ |
5212577a | 5179 | |
e9bb382b | 5180 | struct type * |
77b7c781 | 5181 | arch_flags_type (struct gdbarch *gdbarch, const char *name, int bit) |
e9bb382b | 5182 | { |
e9bb382b UW |
5183 | struct type *type; |
5184 | ||
77b7c781 | 5185 | type = arch_type (gdbarch, TYPE_CODE_FLAGS, bit, name); |
e9bb382b | 5186 | TYPE_UNSIGNED (type) = 1; |
81516450 DE |
5187 | TYPE_NFIELDS (type) = 0; |
5188 | /* Pre-allocate enough space assuming every field is one bit. */ | |
224c3ddb | 5189 | TYPE_FIELDS (type) |
77b7c781 | 5190 | = (struct field *) TYPE_ZALLOC (type, bit * sizeof (struct field)); |
e9bb382b UW |
5191 | |
5192 | return type; | |
5193 | } | |
5194 | ||
5195 | /* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
81516450 DE |
5196 | position BITPOS is called NAME. Pass NAME as "" for fields that |
5197 | should not be printed. */ | |
5198 | ||
5199 | void | |
5200 | append_flags_type_field (struct type *type, int start_bitpos, int nr_bits, | |
695bfa52 | 5201 | struct type *field_type, const char *name) |
81516450 DE |
5202 | { |
5203 | int type_bitsize = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
5204 | int field_nr = TYPE_NFIELDS (type); | |
5205 | ||
5206 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS); | |
5207 | gdb_assert (TYPE_NFIELDS (type) + 1 <= type_bitsize); | |
5208 | gdb_assert (start_bitpos >= 0 && start_bitpos < type_bitsize); | |
5209 | gdb_assert (nr_bits >= 1 && nr_bits <= type_bitsize); | |
5210 | gdb_assert (name != NULL); | |
5211 | ||
5212 | TYPE_FIELD_NAME (type, field_nr) = xstrdup (name); | |
5213 | TYPE_FIELD_TYPE (type, field_nr) = field_type; | |
5214 | SET_FIELD_BITPOS (TYPE_FIELD (type, field_nr), start_bitpos); | |
5215 | TYPE_FIELD_BITSIZE (type, field_nr) = nr_bits; | |
5216 | ++TYPE_NFIELDS (type); | |
5217 | } | |
5218 | ||
5219 | /* Special version of append_flags_type_field to add a flag field. | |
5220 | Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
e9bb382b | 5221 | position BITPOS is called NAME. */ |
5212577a | 5222 | |
e9bb382b | 5223 | void |
695bfa52 | 5224 | append_flags_type_flag (struct type *type, int bitpos, const char *name) |
e9bb382b | 5225 | { |
81516450 | 5226 | struct gdbarch *gdbarch = get_type_arch (type); |
e9bb382b | 5227 | |
81516450 DE |
5228 | append_flags_type_field (type, bitpos, 1, |
5229 | builtin_type (gdbarch)->builtin_bool, | |
5230 | name); | |
e9bb382b UW |
5231 | } |
5232 | ||
5233 | /* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as | |
5234 | specified by CODE) associated with GDBARCH. NAME is the type name. */ | |
5212577a | 5235 | |
e9bb382b | 5236 | struct type * |
695bfa52 TT |
5237 | arch_composite_type (struct gdbarch *gdbarch, const char *name, |
5238 | enum type_code code) | |
e9bb382b UW |
5239 | { |
5240 | struct type *t; | |
d8734c88 | 5241 | |
e9bb382b UW |
5242 | gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION); |
5243 | t = arch_type (gdbarch, code, 0, NULL); | |
e86ca25f | 5244 | TYPE_NAME (t) = name; |
e9bb382b UW |
5245 | INIT_CPLUS_SPECIFIC (t); |
5246 | return t; | |
5247 | } | |
5248 | ||
5249 | /* Add new field with name NAME and type FIELD to composite type T. | |
f5dff777 DJ |
5250 | Do not set the field's position or adjust the type's length; |
5251 | the caller should do so. Return the new field. */ | |
5212577a | 5252 | |
f5dff777 | 5253 | struct field * |
695bfa52 | 5254 | append_composite_type_field_raw (struct type *t, const char *name, |
f5dff777 | 5255 | struct type *field) |
e9bb382b UW |
5256 | { |
5257 | struct field *f; | |
d8734c88 | 5258 | |
e9bb382b | 5259 | TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; |
224c3ddb SM |
5260 | TYPE_FIELDS (t) = XRESIZEVEC (struct field, TYPE_FIELDS (t), |
5261 | TYPE_NFIELDS (t)); | |
e9bb382b UW |
5262 | f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); |
5263 | memset (f, 0, sizeof f[0]); | |
5264 | FIELD_TYPE (f[0]) = field; | |
5265 | FIELD_NAME (f[0]) = name; | |
f5dff777 DJ |
5266 | return f; |
5267 | } | |
5268 | ||
5269 | /* Add new field with name NAME and type FIELD to composite type T. | |
5270 | ALIGNMENT (if non-zero) specifies the minimum field alignment. */ | |
5212577a | 5271 | |
f5dff777 | 5272 | void |
695bfa52 | 5273 | append_composite_type_field_aligned (struct type *t, const char *name, |
f5dff777 DJ |
5274 | struct type *field, int alignment) |
5275 | { | |
5276 | struct field *f = append_composite_type_field_raw (t, name, field); | |
d8734c88 | 5277 | |
e9bb382b UW |
5278 | if (TYPE_CODE (t) == TYPE_CODE_UNION) |
5279 | { | |
5280 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) | |
5281 | TYPE_LENGTH (t) = TYPE_LENGTH (field); | |
5282 | } | |
5283 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
5284 | { | |
5285 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
5286 | if (TYPE_NFIELDS (t) > 1) | |
5287 | { | |
f41f5e61 PA |
5288 | SET_FIELD_BITPOS (f[0], |
5289 | (FIELD_BITPOS (f[-1]) | |
5290 | + (TYPE_LENGTH (FIELD_TYPE (f[-1])) | |
5291 | * TARGET_CHAR_BIT))); | |
e9bb382b UW |
5292 | |
5293 | if (alignment) | |
5294 | { | |
86c3c1fc AB |
5295 | int left; |
5296 | ||
5297 | alignment *= TARGET_CHAR_BIT; | |
5298 | left = FIELD_BITPOS (f[0]) % alignment; | |
d8734c88 | 5299 | |
e9bb382b UW |
5300 | if (left) |
5301 | { | |
f41f5e61 | 5302 | SET_FIELD_BITPOS (f[0], FIELD_BITPOS (f[0]) + (alignment - left)); |
86c3c1fc | 5303 | TYPE_LENGTH (t) += (alignment - left) / TARGET_CHAR_BIT; |
e9bb382b UW |
5304 | } |
5305 | } | |
5306 | } | |
5307 | } | |
5308 | } | |
5309 | ||
5310 | /* Add new field with name NAME and type FIELD to composite type T. */ | |
5212577a | 5311 | |
e9bb382b | 5312 | void |
695bfa52 | 5313 | append_composite_type_field (struct type *t, const char *name, |
e9bb382b UW |
5314 | struct type *field) |
5315 | { | |
5316 | append_composite_type_field_aligned (t, name, field, 0); | |
5317 | } | |
5318 | ||
000177f0 AC |
5319 | static struct gdbarch_data *gdbtypes_data; |
5320 | ||
5321 | const struct builtin_type * | |
5322 | builtin_type (struct gdbarch *gdbarch) | |
5323 | { | |
9a3c8263 | 5324 | return (const struct builtin_type *) gdbarch_data (gdbarch, gdbtypes_data); |
000177f0 AC |
5325 | } |
5326 | ||
5327 | static void * | |
5328 | gdbtypes_post_init (struct gdbarch *gdbarch) | |
5329 | { | |
5330 | struct builtin_type *builtin_type | |
5331 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); | |
5332 | ||
46bf5051 | 5333 | /* Basic types. */ |
e9bb382b | 5334 | builtin_type->builtin_void |
77b7c781 | 5335 | = arch_type (gdbarch, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void"); |
e9bb382b UW |
5336 | builtin_type->builtin_char |
5337 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5338 | !gdbarch_char_signed (gdbarch), "char"); | |
c413c448 | 5339 | TYPE_NOSIGN (builtin_type->builtin_char) = 1; |
e9bb382b UW |
5340 | builtin_type->builtin_signed_char |
5341 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5342 | 0, "signed char"); | |
5343 | builtin_type->builtin_unsigned_char | |
5344 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5345 | 1, "unsigned char"); | |
5346 | builtin_type->builtin_short | |
5347 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
5348 | 0, "short"); | |
5349 | builtin_type->builtin_unsigned_short | |
5350 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
5351 | 1, "unsigned short"); | |
5352 | builtin_type->builtin_int | |
5353 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
5354 | 0, "int"); | |
5355 | builtin_type->builtin_unsigned_int | |
5356 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
5357 | 1, "unsigned int"); | |
5358 | builtin_type->builtin_long | |
5359 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
5360 | 0, "long"); | |
5361 | builtin_type->builtin_unsigned_long | |
5362 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
5363 | 1, "unsigned long"); | |
5364 | builtin_type->builtin_long_long | |
5365 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
5366 | 0, "long long"); | |
5367 | builtin_type->builtin_unsigned_long_long | |
5368 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
5369 | 1, "unsigned long long"); | |
70bd8e24 | 5370 | builtin_type->builtin_float |
e9bb382b | 5371 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), |
27067745 | 5372 | "float", gdbarch_float_format (gdbarch)); |
70bd8e24 | 5373 | builtin_type->builtin_double |
e9bb382b | 5374 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), |
27067745 | 5375 | "double", gdbarch_double_format (gdbarch)); |
70bd8e24 | 5376 | builtin_type->builtin_long_double |
e9bb382b | 5377 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), |
27067745 | 5378 | "long double", gdbarch_long_double_format (gdbarch)); |
70bd8e24 | 5379 | builtin_type->builtin_complex |
e9bb382b UW |
5380 | = arch_complex_type (gdbarch, "complex", |
5381 | builtin_type->builtin_float); | |
70bd8e24 | 5382 | builtin_type->builtin_double_complex |
e9bb382b UW |
5383 | = arch_complex_type (gdbarch, "double complex", |
5384 | builtin_type->builtin_double); | |
5385 | builtin_type->builtin_string | |
77b7c781 | 5386 | = arch_type (gdbarch, TYPE_CODE_STRING, TARGET_CHAR_BIT, "string"); |
e9bb382b | 5387 | builtin_type->builtin_bool |
77b7c781 | 5388 | = arch_type (gdbarch, TYPE_CODE_BOOL, TARGET_CHAR_BIT, "bool"); |
000177f0 | 5389 | |
7678ef8f TJB |
5390 | /* The following three are about decimal floating point types, which |
5391 | are 32-bits, 64-bits and 128-bits respectively. */ | |
5392 | builtin_type->builtin_decfloat | |
88dfca6c | 5393 | = arch_decfloat_type (gdbarch, 32, "_Decimal32"); |
7678ef8f | 5394 | builtin_type->builtin_decdouble |
88dfca6c | 5395 | = arch_decfloat_type (gdbarch, 64, "_Decimal64"); |
7678ef8f | 5396 | builtin_type->builtin_declong |
88dfca6c | 5397 | = arch_decfloat_type (gdbarch, 128, "_Decimal128"); |
7678ef8f | 5398 | |
69feb676 | 5399 | /* "True" character types. */ |
e9bb382b UW |
5400 | builtin_type->builtin_true_char |
5401 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 0, "true character"); | |
5402 | builtin_type->builtin_true_unsigned_char | |
5403 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 1, "true character"); | |
69feb676 | 5404 | |
df4df182 | 5405 | /* Fixed-size integer types. */ |
e9bb382b UW |
5406 | builtin_type->builtin_int0 |
5407 | = arch_integer_type (gdbarch, 0, 0, "int0_t"); | |
5408 | builtin_type->builtin_int8 | |
5409 | = arch_integer_type (gdbarch, 8, 0, "int8_t"); | |
5410 | builtin_type->builtin_uint8 | |
5411 | = arch_integer_type (gdbarch, 8, 1, "uint8_t"); | |
5412 | builtin_type->builtin_int16 | |
5413 | = arch_integer_type (gdbarch, 16, 0, "int16_t"); | |
5414 | builtin_type->builtin_uint16 | |
5415 | = arch_integer_type (gdbarch, 16, 1, "uint16_t"); | |
d1908f2d JD |
5416 | builtin_type->builtin_int24 |
5417 | = arch_integer_type (gdbarch, 24, 0, "int24_t"); | |
5418 | builtin_type->builtin_uint24 | |
5419 | = arch_integer_type (gdbarch, 24, 1, "uint24_t"); | |
e9bb382b UW |
5420 | builtin_type->builtin_int32 |
5421 | = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
5422 | builtin_type->builtin_uint32 | |
5423 | = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
5424 | builtin_type->builtin_int64 | |
5425 | = arch_integer_type (gdbarch, 64, 0, "int64_t"); | |
5426 | builtin_type->builtin_uint64 | |
5427 | = arch_integer_type (gdbarch, 64, 1, "uint64_t"); | |
5428 | builtin_type->builtin_int128 | |
5429 | = arch_integer_type (gdbarch, 128, 0, "int128_t"); | |
5430 | builtin_type->builtin_uint128 | |
5431 | = arch_integer_type (gdbarch, 128, 1, "uint128_t"); | |
2844d6b5 KW |
5432 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_int8) |= |
5433 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
5434 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_uint8) |= | |
5435 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
df4df182 | 5436 | |
9a22f0d0 PM |
5437 | /* Wide character types. */ |
5438 | builtin_type->builtin_char16 | |
53e710ac | 5439 | = arch_integer_type (gdbarch, 16, 1, "char16_t"); |
9a22f0d0 | 5440 | builtin_type->builtin_char32 |
53e710ac | 5441 | = arch_integer_type (gdbarch, 32, 1, "char32_t"); |
53375380 PA |
5442 | builtin_type->builtin_wchar |
5443 | = arch_integer_type (gdbarch, gdbarch_wchar_bit (gdbarch), | |
5444 | !gdbarch_wchar_signed (gdbarch), "wchar_t"); | |
9a22f0d0 | 5445 | |
46bf5051 | 5446 | /* Default data/code pointer types. */ |
e9bb382b UW |
5447 | builtin_type->builtin_data_ptr |
5448 | = lookup_pointer_type (builtin_type->builtin_void); | |
5449 | builtin_type->builtin_func_ptr | |
5450 | = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
0875794a JK |
5451 | builtin_type->builtin_func_func |
5452 | = lookup_function_type (builtin_type->builtin_func_ptr); | |
46bf5051 | 5453 | |
78267919 | 5454 | /* This type represents a GDB internal function. */ |
e9bb382b UW |
5455 | builtin_type->internal_fn |
5456 | = arch_type (gdbarch, TYPE_CODE_INTERNAL_FUNCTION, 0, | |
5457 | "<internal function>"); | |
78267919 | 5458 | |
e81e7f5e SC |
5459 | /* This type represents an xmethod. */ |
5460 | builtin_type->xmethod | |
5461 | = arch_type (gdbarch, TYPE_CODE_XMETHOD, 0, "<xmethod>"); | |
5462 | ||
46bf5051 UW |
5463 | return builtin_type; |
5464 | } | |
5465 | ||
46bf5051 UW |
5466 | /* This set of objfile-based types is intended to be used by symbol |
5467 | readers as basic types. */ | |
5468 | ||
5469 | static const struct objfile_data *objfile_type_data; | |
5470 | ||
5471 | const struct objfile_type * | |
5472 | objfile_type (struct objfile *objfile) | |
5473 | { | |
5474 | struct gdbarch *gdbarch; | |
5475 | struct objfile_type *objfile_type | |
9a3c8263 | 5476 | = (struct objfile_type *) objfile_data (objfile, objfile_type_data); |
46bf5051 UW |
5477 | |
5478 | if (objfile_type) | |
5479 | return objfile_type; | |
5480 | ||
5481 | objfile_type = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
5482 | 1, struct objfile_type); | |
5483 | ||
5484 | /* Use the objfile architecture to determine basic type properties. */ | |
5485 | gdbarch = get_objfile_arch (objfile); | |
5486 | ||
5487 | /* Basic types. */ | |
5488 | objfile_type->builtin_void | |
77b7c781 | 5489 | = init_type (objfile, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void"); |
46bf5051 | 5490 | objfile_type->builtin_char |
19f392bc UW |
5491 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5492 | !gdbarch_char_signed (gdbarch), "char"); | |
c413c448 | 5493 | TYPE_NOSIGN (objfile_type->builtin_char) = 1; |
46bf5051 | 5494 | objfile_type->builtin_signed_char |
19f392bc UW |
5495 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5496 | 0, "signed char"); | |
46bf5051 | 5497 | objfile_type->builtin_unsigned_char |
19f392bc UW |
5498 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5499 | 1, "unsigned char"); | |
46bf5051 | 5500 | objfile_type->builtin_short |
19f392bc UW |
5501 | = init_integer_type (objfile, gdbarch_short_bit (gdbarch), |
5502 | 0, "short"); | |
46bf5051 | 5503 | objfile_type->builtin_unsigned_short |
19f392bc UW |
5504 | = init_integer_type (objfile, gdbarch_short_bit (gdbarch), |
5505 | 1, "unsigned short"); | |
46bf5051 | 5506 | objfile_type->builtin_int |
19f392bc UW |
5507 | = init_integer_type (objfile, gdbarch_int_bit (gdbarch), |
5508 | 0, "int"); | |
46bf5051 | 5509 | objfile_type->builtin_unsigned_int |
19f392bc UW |
5510 | = init_integer_type (objfile, gdbarch_int_bit (gdbarch), |
5511 | 1, "unsigned int"); | |
46bf5051 | 5512 | objfile_type->builtin_long |
19f392bc UW |
5513 | = init_integer_type (objfile, gdbarch_long_bit (gdbarch), |
5514 | 0, "long"); | |
46bf5051 | 5515 | objfile_type->builtin_unsigned_long |
19f392bc UW |
5516 | = init_integer_type (objfile, gdbarch_long_bit (gdbarch), |
5517 | 1, "unsigned long"); | |
46bf5051 | 5518 | objfile_type->builtin_long_long |
19f392bc UW |
5519 | = init_integer_type (objfile, gdbarch_long_long_bit (gdbarch), |
5520 | 0, "long long"); | |
46bf5051 | 5521 | objfile_type->builtin_unsigned_long_long |
19f392bc UW |
5522 | = init_integer_type (objfile, gdbarch_long_long_bit (gdbarch), |
5523 | 1, "unsigned long long"); | |
46bf5051 | 5524 | objfile_type->builtin_float |
19f392bc UW |
5525 | = init_float_type (objfile, gdbarch_float_bit (gdbarch), |
5526 | "float", gdbarch_float_format (gdbarch)); | |
46bf5051 | 5527 | objfile_type->builtin_double |
19f392bc UW |
5528 | = init_float_type (objfile, gdbarch_double_bit (gdbarch), |
5529 | "double", gdbarch_double_format (gdbarch)); | |
46bf5051 | 5530 | objfile_type->builtin_long_double |
19f392bc UW |
5531 | = init_float_type (objfile, gdbarch_long_double_bit (gdbarch), |
5532 | "long double", gdbarch_long_double_format (gdbarch)); | |
46bf5051 UW |
5533 | |
5534 | /* This type represents a type that was unrecognized in symbol read-in. */ | |
5535 | objfile_type->builtin_error | |
19f392bc | 5536 | = init_type (objfile, TYPE_CODE_ERROR, 0, "<unknown type>"); |
46bf5051 UW |
5537 | |
5538 | /* The following set of types is used for symbols with no | |
5539 | debug information. */ | |
5540 | objfile_type->nodebug_text_symbol | |
77b7c781 | 5541 | = init_type (objfile, TYPE_CODE_FUNC, TARGET_CHAR_BIT, |
19f392bc | 5542 | "<text variable, no debug info>"); |
0875794a | 5543 | objfile_type->nodebug_text_gnu_ifunc_symbol |
77b7c781 | 5544 | = init_type (objfile, TYPE_CODE_FUNC, TARGET_CHAR_BIT, |
19f392bc | 5545 | "<text gnu-indirect-function variable, no debug info>"); |
19f392bc | 5546 | TYPE_GNU_IFUNC (objfile_type->nodebug_text_gnu_ifunc_symbol) = 1; |
0875794a | 5547 | objfile_type->nodebug_got_plt_symbol |
19f392bc UW |
5548 | = init_pointer_type (objfile, gdbarch_addr_bit (gdbarch), |
5549 | "<text from jump slot in .got.plt, no debug info>", | |
5550 | objfile_type->nodebug_text_symbol); | |
46bf5051 | 5551 | objfile_type->nodebug_data_symbol |
46a4882b | 5552 | = init_nodebug_var_type (objfile, "<data variable, no debug info>"); |
46bf5051 | 5553 | objfile_type->nodebug_unknown_symbol |
46a4882b | 5554 | = init_nodebug_var_type (objfile, "<variable (not text or data), no debug info>"); |
46bf5051 | 5555 | objfile_type->nodebug_tls_symbol |
46a4882b | 5556 | = init_nodebug_var_type (objfile, "<thread local variable, no debug info>"); |
000177f0 AC |
5557 | |
5558 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
0a7cfe2c | 5559 | the same. |
000177f0 AC |
5560 | |
5561 | The upshot is: | |
5562 | - gdb's `struct type' always describes the target's | |
5563 | representation. | |
5564 | - gdb's `struct value' objects should always hold values in | |
5565 | target form. | |
5566 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
5567 | address space that the assembler and linker work with. Thus, | |
5568 | since target_read_memory takes a CORE_ADDR as an argument, it | |
5569 | can access any memory on the target, even if the processor has | |
5570 | separate code and data address spaces. | |
5571 | ||
46bf5051 UW |
5572 | In this context, objfile_type->builtin_core_addr is a bit odd: |
5573 | it's a target type for a value the target will never see. It's | |
5574 | only used to hold the values of (typeless) linker symbols, which | |
5575 | are indeed in the unified virtual address space. */ | |
000177f0 | 5576 | |
46bf5051 | 5577 | objfile_type->builtin_core_addr |
19f392bc UW |
5578 | = init_integer_type (objfile, gdbarch_addr_bit (gdbarch), 1, |
5579 | "__CORE_ADDR"); | |
64c50499 | 5580 | |
46bf5051 UW |
5581 | set_objfile_data (objfile, objfile_type_data, objfile_type); |
5582 | return objfile_type; | |
000177f0 AC |
5583 | } |
5584 | ||
c906108c | 5585 | void |
fba45db2 | 5586 | _initialize_gdbtypes (void) |
c906108c | 5587 | { |
5674de60 | 5588 | gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
46bf5051 | 5589 | objfile_type_data = register_objfile_data (); |
5674de60 | 5590 | |
ccce17b0 YQ |
5591 | add_setshow_zuinteger_cmd ("overload", no_class, &overload_debug, |
5592 | _("Set debugging of C++ overloading."), | |
5593 | _("Show debugging of C++ overloading."), | |
5594 | _("When enabled, ranking of the " | |
5595 | "functions is displayed."), | |
5596 | NULL, | |
5597 | show_overload_debug, | |
5598 | &setdebuglist, &showdebuglist); | |
5674de60 | 5599 | |
7ba81444 | 5600 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 | 5601 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3e43a32a MS |
5602 | &opaque_type_resolution, |
5603 | _("Set resolution of opaque struct/class/union" | |
5604 | " types (if set before loading symbols)."), | |
5605 | _("Show resolution of opaque struct/class/union" | |
5606 | " types (if set before loading symbols)."), | |
5607 | NULL, NULL, | |
5674de60 UW |
5608 | show_opaque_type_resolution, |
5609 | &setlist, &showlist); | |
a451cb65 KS |
5610 | |
5611 | /* Add an option to permit non-strict type checking. */ | |
5612 | add_setshow_boolean_cmd ("type", class_support, | |
5613 | &strict_type_checking, | |
5614 | _("Set strict type checking."), | |
5615 | _("Show strict type checking."), | |
5616 | NULL, NULL, | |
5617 | show_strict_type_checking, | |
5618 | &setchecklist, &showchecklist); | |
c906108c | 5619 | } |