Commit | Line | Data |
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c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
4f2aea11 | 2 | |
618f726f | 3 | Copyright (C) 1992-2016 Free Software Foundation, Inc. |
4f2aea11 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support, using pieces from other GDB modules. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
c906108c SS |
23 | #include "bfd.h" |
24 | #include "symtab.h" | |
25 | #include "symfile.h" | |
26 | #include "objfiles.h" | |
27 | #include "gdbtypes.h" | |
28 | #include "expression.h" | |
29 | #include "language.h" | |
30 | #include "target.h" | |
31 | #include "value.h" | |
32 | #include "demangle.h" | |
33 | #include "complaints.h" | |
34 | #include "gdbcmd.h" | |
015a42b4 | 35 | #include "cp-abi.h" |
ae5a43e0 | 36 | #include "hashtab.h" |
8de20a37 | 37 | #include "cp-support.h" |
ca092b61 DE |
38 | #include "bcache.h" |
39 | #include "dwarf2loc.h" | |
80180f79 | 40 | #include "gdbcore.h" |
ac3aafc7 | 41 | |
6403aeea SW |
42 | /* Initialize BADNESS constants. */ |
43 | ||
a9d5ef47 | 44 | const struct rank LENGTH_MISMATCH_BADNESS = {100,0}; |
6403aeea | 45 | |
a9d5ef47 SW |
46 | const struct rank TOO_FEW_PARAMS_BADNESS = {100,0}; |
47 | const struct rank INCOMPATIBLE_TYPE_BADNESS = {100,0}; | |
6403aeea | 48 | |
a9d5ef47 | 49 | const struct rank EXACT_MATCH_BADNESS = {0,0}; |
6403aeea | 50 | |
a9d5ef47 SW |
51 | const struct rank INTEGER_PROMOTION_BADNESS = {1,0}; |
52 | const struct rank FLOAT_PROMOTION_BADNESS = {1,0}; | |
53 | const struct rank BASE_PTR_CONVERSION_BADNESS = {1,0}; | |
54 | const struct rank INTEGER_CONVERSION_BADNESS = {2,0}; | |
55 | const struct rank FLOAT_CONVERSION_BADNESS = {2,0}; | |
56 | const struct rank INT_FLOAT_CONVERSION_BADNESS = {2,0}; | |
57 | const struct rank VOID_PTR_CONVERSION_BADNESS = {2,0}; | |
5b4f6e25 | 58 | const struct rank BOOL_CONVERSION_BADNESS = {3,0}; |
a9d5ef47 SW |
59 | const struct rank BASE_CONVERSION_BADNESS = {2,0}; |
60 | const struct rank REFERENCE_CONVERSION_BADNESS = {2,0}; | |
da096638 | 61 | const struct rank NULL_POINTER_CONVERSION_BADNESS = {2,0}; |
a9d5ef47 | 62 | const struct rank NS_POINTER_CONVERSION_BADNESS = {10,0}; |
a451cb65 | 63 | const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS = {3,0}; |
6403aeea | 64 | |
8da61cc4 | 65 | /* Floatformat pairs. */ |
f9e9243a UW |
66 | const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN] = { |
67 | &floatformat_ieee_half_big, | |
68 | &floatformat_ieee_half_little | |
69 | }; | |
8da61cc4 DJ |
70 | const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { |
71 | &floatformat_ieee_single_big, | |
72 | &floatformat_ieee_single_little | |
73 | }; | |
74 | const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { | |
75 | &floatformat_ieee_double_big, | |
76 | &floatformat_ieee_double_little | |
77 | }; | |
78 | const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { | |
79 | &floatformat_ieee_double_big, | |
80 | &floatformat_ieee_double_littlebyte_bigword | |
81 | }; | |
82 | const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { | |
83 | &floatformat_i387_ext, | |
84 | &floatformat_i387_ext | |
85 | }; | |
86 | const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { | |
87 | &floatformat_m68881_ext, | |
88 | &floatformat_m68881_ext | |
89 | }; | |
90 | const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { | |
91 | &floatformat_arm_ext_big, | |
92 | &floatformat_arm_ext_littlebyte_bigword | |
93 | }; | |
94 | const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { | |
95 | &floatformat_ia64_spill_big, | |
96 | &floatformat_ia64_spill_little | |
97 | }; | |
98 | const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = { | |
99 | &floatformat_ia64_quad_big, | |
100 | &floatformat_ia64_quad_little | |
101 | }; | |
102 | const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { | |
103 | &floatformat_vax_f, | |
104 | &floatformat_vax_f | |
105 | }; | |
106 | const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { | |
107 | &floatformat_vax_d, | |
108 | &floatformat_vax_d | |
109 | }; | |
b14d30e1 | 110 | const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { |
f5aee5ee AM |
111 | &floatformat_ibm_long_double_big, |
112 | &floatformat_ibm_long_double_little | |
b14d30e1 | 113 | }; |
8da61cc4 | 114 | |
2873700e KS |
115 | /* Should opaque types be resolved? */ |
116 | ||
117 | static int opaque_type_resolution = 1; | |
118 | ||
119 | /* A flag to enable printing of debugging information of C++ | |
120 | overloading. */ | |
121 | ||
122 | unsigned int overload_debug = 0; | |
123 | ||
a451cb65 KS |
124 | /* A flag to enable strict type checking. */ |
125 | ||
126 | static int strict_type_checking = 1; | |
127 | ||
2873700e | 128 | /* A function to show whether opaque types are resolved. */ |
5212577a | 129 | |
920d2a44 AC |
130 | static void |
131 | show_opaque_type_resolution (struct ui_file *file, int from_tty, | |
7ba81444 MS |
132 | struct cmd_list_element *c, |
133 | const char *value) | |
920d2a44 | 134 | { |
3e43a32a MS |
135 | fprintf_filtered (file, _("Resolution of opaque struct/class/union types " |
136 | "(if set before loading symbols) is %s.\n"), | |
920d2a44 AC |
137 | value); |
138 | } | |
139 | ||
2873700e | 140 | /* A function to show whether C++ overload debugging is enabled. */ |
5212577a | 141 | |
920d2a44 AC |
142 | static void |
143 | show_overload_debug (struct ui_file *file, int from_tty, | |
144 | struct cmd_list_element *c, const char *value) | |
145 | { | |
7ba81444 MS |
146 | fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"), |
147 | value); | |
920d2a44 | 148 | } |
c906108c | 149 | |
a451cb65 KS |
150 | /* A function to show the status of strict type checking. */ |
151 | ||
152 | static void | |
153 | show_strict_type_checking (struct ui_file *file, int from_tty, | |
154 | struct cmd_list_element *c, const char *value) | |
155 | { | |
156 | fprintf_filtered (file, _("Strict type checking is %s.\n"), value); | |
157 | } | |
158 | ||
5212577a | 159 | \f |
e9bb382b UW |
160 | /* Allocate a new OBJFILE-associated type structure and fill it |
161 | with some defaults. Space for the type structure is allocated | |
162 | on the objfile's objfile_obstack. */ | |
c906108c SS |
163 | |
164 | struct type * | |
fba45db2 | 165 | alloc_type (struct objfile *objfile) |
c906108c | 166 | { |
52f0bd74 | 167 | struct type *type; |
c906108c | 168 | |
e9bb382b UW |
169 | gdb_assert (objfile != NULL); |
170 | ||
7ba81444 | 171 | /* Alloc the structure and start off with all fields zeroed. */ |
e9bb382b UW |
172 | type = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct type); |
173 | TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (&objfile->objfile_obstack, | |
174 | struct main_type); | |
175 | OBJSTAT (objfile, n_types++); | |
c906108c | 176 | |
e9bb382b UW |
177 | TYPE_OBJFILE_OWNED (type) = 1; |
178 | TYPE_OWNER (type).objfile = objfile; | |
c906108c | 179 | |
7ba81444 | 180 | /* Initialize the fields that might not be zero. */ |
c906108c SS |
181 | |
182 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
2fdde8f8 | 183 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
c906108c | 184 | |
c16abbde | 185 | return type; |
c906108c SS |
186 | } |
187 | ||
e9bb382b UW |
188 | /* Allocate a new GDBARCH-associated type structure and fill it |
189 | with some defaults. Space for the type structure is allocated | |
8f57eec2 | 190 | on the obstack associated with GDBARCH. */ |
e9bb382b UW |
191 | |
192 | struct type * | |
193 | alloc_type_arch (struct gdbarch *gdbarch) | |
194 | { | |
195 | struct type *type; | |
196 | ||
197 | gdb_assert (gdbarch != NULL); | |
198 | ||
199 | /* Alloc the structure and start off with all fields zeroed. */ | |
200 | ||
8f57eec2 PP |
201 | type = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct type); |
202 | TYPE_MAIN_TYPE (type) = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct main_type); | |
e9bb382b UW |
203 | |
204 | TYPE_OBJFILE_OWNED (type) = 0; | |
205 | TYPE_OWNER (type).gdbarch = gdbarch; | |
206 | ||
207 | /* Initialize the fields that might not be zero. */ | |
208 | ||
209 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
e9bb382b UW |
210 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
211 | ||
212 | return type; | |
213 | } | |
214 | ||
215 | /* If TYPE is objfile-associated, allocate a new type structure | |
216 | associated with the same objfile. If TYPE is gdbarch-associated, | |
217 | allocate a new type structure associated with the same gdbarch. */ | |
218 | ||
219 | struct type * | |
220 | alloc_type_copy (const struct type *type) | |
221 | { | |
222 | if (TYPE_OBJFILE_OWNED (type)) | |
223 | return alloc_type (TYPE_OWNER (type).objfile); | |
224 | else | |
225 | return alloc_type_arch (TYPE_OWNER (type).gdbarch); | |
226 | } | |
227 | ||
228 | /* If TYPE is gdbarch-associated, return that architecture. | |
229 | If TYPE is objfile-associated, return that objfile's architecture. */ | |
230 | ||
231 | struct gdbarch * | |
232 | get_type_arch (const struct type *type) | |
233 | { | |
234 | if (TYPE_OBJFILE_OWNED (type)) | |
235 | return get_objfile_arch (TYPE_OWNER (type).objfile); | |
236 | else | |
237 | return TYPE_OWNER (type).gdbarch; | |
238 | } | |
239 | ||
99ad9427 YQ |
240 | /* See gdbtypes.h. */ |
241 | ||
242 | struct type * | |
243 | get_target_type (struct type *type) | |
244 | { | |
245 | if (type != NULL) | |
246 | { | |
247 | type = TYPE_TARGET_TYPE (type); | |
248 | if (type != NULL) | |
249 | type = check_typedef (type); | |
250 | } | |
251 | ||
252 | return type; | |
253 | } | |
254 | ||
2e056931 SM |
255 | /* See gdbtypes.h. */ |
256 | ||
257 | unsigned int | |
258 | type_length_units (struct type *type) | |
259 | { | |
260 | struct gdbarch *arch = get_type_arch (type); | |
261 | int unit_size = gdbarch_addressable_memory_unit_size (arch); | |
262 | ||
263 | return TYPE_LENGTH (type) / unit_size; | |
264 | } | |
265 | ||
2fdde8f8 DJ |
266 | /* Alloc a new type instance structure, fill it with some defaults, |
267 | and point it at OLDTYPE. Allocate the new type instance from the | |
268 | same place as OLDTYPE. */ | |
269 | ||
270 | static struct type * | |
271 | alloc_type_instance (struct type *oldtype) | |
272 | { | |
273 | struct type *type; | |
274 | ||
275 | /* Allocate the structure. */ | |
276 | ||
e9bb382b | 277 | if (! TYPE_OBJFILE_OWNED (oldtype)) |
41bf6aca | 278 | type = XCNEW (struct type); |
2fdde8f8 | 279 | else |
1deafd4e PA |
280 | type = OBSTACK_ZALLOC (&TYPE_OBJFILE (oldtype)->objfile_obstack, |
281 | struct type); | |
282 | ||
2fdde8f8 DJ |
283 | TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype); |
284 | ||
285 | TYPE_CHAIN (type) = type; /* Chain back to itself for now. */ | |
286 | ||
c16abbde | 287 | return type; |
2fdde8f8 DJ |
288 | } |
289 | ||
290 | /* Clear all remnants of the previous type at TYPE, in preparation for | |
e9bb382b | 291 | replacing it with something else. Preserve owner information. */ |
5212577a | 292 | |
2fdde8f8 DJ |
293 | static void |
294 | smash_type (struct type *type) | |
295 | { | |
e9bb382b UW |
296 | int objfile_owned = TYPE_OBJFILE_OWNED (type); |
297 | union type_owner owner = TYPE_OWNER (type); | |
298 | ||
2fdde8f8 DJ |
299 | memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
300 | ||
e9bb382b UW |
301 | /* Restore owner information. */ |
302 | TYPE_OBJFILE_OWNED (type) = objfile_owned; | |
303 | TYPE_OWNER (type) = owner; | |
304 | ||
2fdde8f8 DJ |
305 | /* For now, delete the rings. */ |
306 | TYPE_CHAIN (type) = type; | |
307 | ||
308 | /* For now, leave the pointer/reference types alone. */ | |
309 | } | |
310 | ||
c906108c SS |
311 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
312 | to a pointer to memory where the pointer type should be stored. | |
313 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
314 | We allocate new memory if needed. */ | |
315 | ||
316 | struct type * | |
fba45db2 | 317 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 318 | { |
52f0bd74 | 319 | struct type *ntype; /* New type */ |
053cb41b | 320 | struct type *chain; |
c906108c SS |
321 | |
322 | ntype = TYPE_POINTER_TYPE (type); | |
323 | ||
c5aa993b | 324 | if (ntype) |
c906108c | 325 | { |
c5aa993b | 326 | if (typeptr == 0) |
7ba81444 MS |
327 | return ntype; /* Don't care about alloc, |
328 | and have new type. */ | |
c906108c | 329 | else if (*typeptr == 0) |
c5aa993b | 330 | { |
7ba81444 | 331 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 332 | return ntype; |
c5aa993b | 333 | } |
c906108c SS |
334 | } |
335 | ||
336 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
337 | { | |
e9bb382b | 338 | ntype = alloc_type_copy (type); |
c906108c SS |
339 | if (typeptr) |
340 | *typeptr = ntype; | |
341 | } | |
7ba81444 | 342 | else /* We have storage, but need to reset it. */ |
c906108c SS |
343 | { |
344 | ntype = *typeptr; | |
053cb41b | 345 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 346 | smash_type (ntype); |
053cb41b | 347 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
348 | } |
349 | ||
350 | TYPE_TARGET_TYPE (ntype) = type; | |
351 | TYPE_POINTER_TYPE (type) = ntype; | |
352 | ||
5212577a | 353 | /* FIXME! Assumes the machine has only one representation for pointers! */ |
c906108c | 354 | |
50810684 UW |
355 | TYPE_LENGTH (ntype) |
356 | = gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c SS |
357 | TYPE_CODE (ntype) = TYPE_CODE_PTR; |
358 | ||
67b2adb2 | 359 | /* Mark pointers as unsigned. The target converts between pointers |
76e71323 | 360 | and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and |
7ba81444 | 361 | gdbarch_address_to_pointer. */ |
876cecd0 | 362 | TYPE_UNSIGNED (ntype) = 1; |
c5aa993b | 363 | |
053cb41b JB |
364 | /* Update the length of all the other variants of this type. */ |
365 | chain = TYPE_CHAIN (ntype); | |
366 | while (chain != ntype) | |
367 | { | |
368 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
369 | chain = TYPE_CHAIN (chain); | |
370 | } | |
371 | ||
c906108c SS |
372 | return ntype; |
373 | } | |
374 | ||
375 | /* Given a type TYPE, return a type of pointers to that type. | |
376 | May need to construct such a type if this is the first use. */ | |
377 | ||
378 | struct type * | |
fba45db2 | 379 | lookup_pointer_type (struct type *type) |
c906108c | 380 | { |
c5aa993b | 381 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
382 | } |
383 | ||
7ba81444 MS |
384 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, |
385 | points to a pointer to memory where the reference type should be | |
386 | stored. If *TYPEPTR is zero, update it to point to the reference | |
387 | type we return. We allocate new memory if needed. */ | |
c906108c SS |
388 | |
389 | struct type * | |
fba45db2 | 390 | make_reference_type (struct type *type, struct type **typeptr) |
c906108c | 391 | { |
52f0bd74 | 392 | struct type *ntype; /* New type */ |
1e98b326 | 393 | struct type *chain; |
c906108c SS |
394 | |
395 | ntype = TYPE_REFERENCE_TYPE (type); | |
396 | ||
c5aa993b | 397 | if (ntype) |
c906108c | 398 | { |
c5aa993b | 399 | if (typeptr == 0) |
7ba81444 MS |
400 | return ntype; /* Don't care about alloc, |
401 | and have new type. */ | |
c906108c | 402 | else if (*typeptr == 0) |
c5aa993b | 403 | { |
7ba81444 | 404 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 405 | return ntype; |
c5aa993b | 406 | } |
c906108c SS |
407 | } |
408 | ||
409 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
410 | { | |
e9bb382b | 411 | ntype = alloc_type_copy (type); |
c906108c SS |
412 | if (typeptr) |
413 | *typeptr = ntype; | |
414 | } | |
7ba81444 | 415 | else /* We have storage, but need to reset it. */ |
c906108c SS |
416 | { |
417 | ntype = *typeptr; | |
1e98b326 | 418 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 419 | smash_type (ntype); |
1e98b326 | 420 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
421 | } |
422 | ||
423 | TYPE_TARGET_TYPE (ntype) = type; | |
424 | TYPE_REFERENCE_TYPE (type) = ntype; | |
425 | ||
7ba81444 MS |
426 | /* FIXME! Assume the machine has only one representation for |
427 | references, and that it matches the (only) representation for | |
428 | pointers! */ | |
c906108c | 429 | |
50810684 UW |
430 | TYPE_LENGTH (ntype) = |
431 | gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c | 432 | TYPE_CODE (ntype) = TYPE_CODE_REF; |
c5aa993b | 433 | |
c906108c SS |
434 | if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */ |
435 | TYPE_REFERENCE_TYPE (type) = ntype; | |
436 | ||
1e98b326 JB |
437 | /* Update the length of all the other variants of this type. */ |
438 | chain = TYPE_CHAIN (ntype); | |
439 | while (chain != ntype) | |
440 | { | |
441 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
442 | chain = TYPE_CHAIN (chain); | |
443 | } | |
444 | ||
c906108c SS |
445 | return ntype; |
446 | } | |
447 | ||
7ba81444 MS |
448 | /* Same as above, but caller doesn't care about memory allocation |
449 | details. */ | |
c906108c SS |
450 | |
451 | struct type * | |
fba45db2 | 452 | lookup_reference_type (struct type *type) |
c906108c | 453 | { |
c5aa993b | 454 | return make_reference_type (type, (struct type **) 0); |
c906108c SS |
455 | } |
456 | ||
7ba81444 MS |
457 | /* Lookup a function type that returns type TYPE. TYPEPTR, if |
458 | nonzero, points to a pointer to memory where the function type | |
459 | should be stored. If *TYPEPTR is zero, update it to point to the | |
0c8b41f1 | 460 | function type we return. We allocate new memory if needed. */ |
c906108c SS |
461 | |
462 | struct type * | |
0c8b41f1 | 463 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 464 | { |
52f0bd74 | 465 | struct type *ntype; /* New type */ |
c906108c SS |
466 | |
467 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
468 | { | |
e9bb382b | 469 | ntype = alloc_type_copy (type); |
c906108c SS |
470 | if (typeptr) |
471 | *typeptr = ntype; | |
472 | } | |
7ba81444 | 473 | else /* We have storage, but need to reset it. */ |
c906108c SS |
474 | { |
475 | ntype = *typeptr; | |
2fdde8f8 | 476 | smash_type (ntype); |
c906108c SS |
477 | } |
478 | ||
479 | TYPE_TARGET_TYPE (ntype) = type; | |
480 | ||
481 | TYPE_LENGTH (ntype) = 1; | |
482 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
c5aa993b | 483 | |
b6cdc2c1 JK |
484 | INIT_FUNC_SPECIFIC (ntype); |
485 | ||
c906108c SS |
486 | return ntype; |
487 | } | |
488 | ||
c906108c SS |
489 | /* Given a type TYPE, return a type of functions that return that type. |
490 | May need to construct such a type if this is the first use. */ | |
491 | ||
492 | struct type * | |
fba45db2 | 493 | lookup_function_type (struct type *type) |
c906108c | 494 | { |
0c8b41f1 | 495 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
496 | } |
497 | ||
71918a86 | 498 | /* Given a type TYPE and argument types, return the appropriate |
a6fb9c08 TT |
499 | function type. If the final type in PARAM_TYPES is NULL, make a |
500 | varargs function. */ | |
71918a86 TT |
501 | |
502 | struct type * | |
503 | lookup_function_type_with_arguments (struct type *type, | |
504 | int nparams, | |
505 | struct type **param_types) | |
506 | { | |
507 | struct type *fn = make_function_type (type, (struct type **) 0); | |
508 | int i; | |
509 | ||
e314d629 | 510 | if (nparams > 0) |
a6fb9c08 | 511 | { |
e314d629 TT |
512 | if (param_types[nparams - 1] == NULL) |
513 | { | |
514 | --nparams; | |
515 | TYPE_VARARGS (fn) = 1; | |
516 | } | |
517 | else if (TYPE_CODE (check_typedef (param_types[nparams - 1])) | |
518 | == TYPE_CODE_VOID) | |
519 | { | |
520 | --nparams; | |
521 | /* Caller should have ensured this. */ | |
522 | gdb_assert (nparams == 0); | |
523 | TYPE_PROTOTYPED (fn) = 1; | |
524 | } | |
a6fb9c08 TT |
525 | } |
526 | ||
71918a86 | 527 | TYPE_NFIELDS (fn) = nparams; |
224c3ddb SM |
528 | TYPE_FIELDS (fn) |
529 | = (struct field *) TYPE_ZALLOC (fn, nparams * sizeof (struct field)); | |
71918a86 TT |
530 | for (i = 0; i < nparams; ++i) |
531 | TYPE_FIELD_TYPE (fn, i) = param_types[i]; | |
532 | ||
533 | return fn; | |
534 | } | |
535 | ||
47663de5 MS |
536 | /* Identify address space identifier by name -- |
537 | return the integer flag defined in gdbtypes.h. */ | |
5212577a DE |
538 | |
539 | int | |
50810684 | 540 | address_space_name_to_int (struct gdbarch *gdbarch, char *space_identifier) |
47663de5 | 541 | { |
8b2dbe47 | 542 | int type_flags; |
d8734c88 | 543 | |
7ba81444 | 544 | /* Check for known address space delimiters. */ |
47663de5 | 545 | if (!strcmp (space_identifier, "code")) |
876cecd0 | 546 | return TYPE_INSTANCE_FLAG_CODE_SPACE; |
47663de5 | 547 | else if (!strcmp (space_identifier, "data")) |
876cecd0 | 548 | return TYPE_INSTANCE_FLAG_DATA_SPACE; |
5f11f355 AC |
549 | else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
550 | && gdbarch_address_class_name_to_type_flags (gdbarch, | |
551 | space_identifier, | |
552 | &type_flags)) | |
8b2dbe47 | 553 | return type_flags; |
47663de5 | 554 | else |
8a3fe4f8 | 555 | error (_("Unknown address space specifier: \"%s\""), space_identifier); |
47663de5 MS |
556 | } |
557 | ||
558 | /* Identify address space identifier by integer flag as defined in | |
7ba81444 | 559 | gdbtypes.h -- return the string version of the adress space name. */ |
47663de5 | 560 | |
321432c0 | 561 | const char * |
50810684 | 562 | address_space_int_to_name (struct gdbarch *gdbarch, int space_flag) |
47663de5 | 563 | { |
876cecd0 | 564 | if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE) |
47663de5 | 565 | return "code"; |
876cecd0 | 566 | else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE) |
47663de5 | 567 | return "data"; |
876cecd0 | 568 | else if ((space_flag & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) |
5f11f355 AC |
569 | && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
570 | return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); | |
47663de5 MS |
571 | else |
572 | return NULL; | |
573 | } | |
574 | ||
2fdde8f8 | 575 | /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
ad766c0a JB |
576 | |
577 | If STORAGE is non-NULL, create the new type instance there. | |
578 | STORAGE must be in the same obstack as TYPE. */ | |
47663de5 | 579 | |
b9362cc7 | 580 | static struct type * |
2fdde8f8 DJ |
581 | make_qualified_type (struct type *type, int new_flags, |
582 | struct type *storage) | |
47663de5 MS |
583 | { |
584 | struct type *ntype; | |
585 | ||
586 | ntype = type; | |
5f61c20e JK |
587 | do |
588 | { | |
589 | if (TYPE_INSTANCE_FLAGS (ntype) == new_flags) | |
590 | return ntype; | |
591 | ntype = TYPE_CHAIN (ntype); | |
592 | } | |
593 | while (ntype != type); | |
47663de5 | 594 | |
2fdde8f8 DJ |
595 | /* Create a new type instance. */ |
596 | if (storage == NULL) | |
597 | ntype = alloc_type_instance (type); | |
598 | else | |
599 | { | |
7ba81444 MS |
600 | /* If STORAGE was provided, it had better be in the same objfile |
601 | as TYPE. Otherwise, we can't link it into TYPE's cv chain: | |
602 | if one objfile is freed and the other kept, we'd have | |
603 | dangling pointers. */ | |
ad766c0a JB |
604 | gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage)); |
605 | ||
2fdde8f8 DJ |
606 | ntype = storage; |
607 | TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); | |
608 | TYPE_CHAIN (ntype) = ntype; | |
609 | } | |
47663de5 MS |
610 | |
611 | /* Pointers or references to the original type are not relevant to | |
2fdde8f8 | 612 | the new type. */ |
47663de5 MS |
613 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
614 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
47663de5 | 615 | |
2fdde8f8 DJ |
616 | /* Chain the new qualified type to the old type. */ |
617 | TYPE_CHAIN (ntype) = TYPE_CHAIN (type); | |
618 | TYPE_CHAIN (type) = ntype; | |
619 | ||
620 | /* Now set the instance flags and return the new type. */ | |
621 | TYPE_INSTANCE_FLAGS (ntype) = new_flags; | |
47663de5 | 622 | |
ab5d3da6 KB |
623 | /* Set length of new type to that of the original type. */ |
624 | TYPE_LENGTH (ntype) = TYPE_LENGTH (type); | |
625 | ||
47663de5 MS |
626 | return ntype; |
627 | } | |
628 | ||
2fdde8f8 DJ |
629 | /* Make an address-space-delimited variant of a type -- a type that |
630 | is identical to the one supplied except that it has an address | |
631 | space attribute attached to it (such as "code" or "data"). | |
632 | ||
7ba81444 MS |
633 | The space attributes "code" and "data" are for Harvard |
634 | architectures. The address space attributes are for architectures | |
635 | which have alternately sized pointers or pointers with alternate | |
636 | representations. */ | |
2fdde8f8 DJ |
637 | |
638 | struct type * | |
639 | make_type_with_address_space (struct type *type, int space_flag) | |
640 | { | |
2fdde8f8 | 641 | int new_flags = ((TYPE_INSTANCE_FLAGS (type) |
876cecd0 TT |
642 | & ~(TYPE_INSTANCE_FLAG_CODE_SPACE |
643 | | TYPE_INSTANCE_FLAG_DATA_SPACE | |
644 | | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)) | |
2fdde8f8 DJ |
645 | | space_flag); |
646 | ||
647 | return make_qualified_type (type, new_flags, NULL); | |
648 | } | |
c906108c SS |
649 | |
650 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
651 | one supplied except that it may have const or volatile attributes | |
652 | CNST is a flag for setting the const attribute | |
653 | VOLTL is a flag for setting the volatile attribute | |
654 | TYPE is the base type whose variant we are creating. | |
c906108c | 655 | |
ad766c0a JB |
656 | If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to |
657 | storage to hold the new qualified type; *TYPEPTR and TYPE must be | |
658 | in the same objfile. Otherwise, allocate fresh memory for the new | |
659 | type whereever TYPE lives. If TYPEPTR is non-zero, set it to the | |
660 | new type we construct. */ | |
5212577a | 661 | |
c906108c | 662 | struct type * |
7ba81444 MS |
663 | make_cv_type (int cnst, int voltl, |
664 | struct type *type, | |
665 | struct type **typeptr) | |
c906108c | 666 | { |
52f0bd74 | 667 | struct type *ntype; /* New type */ |
c906108c | 668 | |
2fdde8f8 | 669 | int new_flags = (TYPE_INSTANCE_FLAGS (type) |
308d96ed MS |
670 | & ~(TYPE_INSTANCE_FLAG_CONST |
671 | | TYPE_INSTANCE_FLAG_VOLATILE)); | |
c906108c | 672 | |
c906108c | 673 | if (cnst) |
876cecd0 | 674 | new_flags |= TYPE_INSTANCE_FLAG_CONST; |
c906108c SS |
675 | |
676 | if (voltl) | |
876cecd0 | 677 | new_flags |= TYPE_INSTANCE_FLAG_VOLATILE; |
a02fd225 | 678 | |
2fdde8f8 | 679 | if (typeptr && *typeptr != NULL) |
a02fd225 | 680 | { |
ad766c0a JB |
681 | /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
682 | a C-V variant chain that threads across objfiles: if one | |
683 | objfile gets freed, then the other has a broken C-V chain. | |
684 | ||
685 | This code used to try to copy over the main type from TYPE to | |
686 | *TYPEPTR if they were in different objfiles, but that's | |
687 | wrong, too: TYPE may have a field list or member function | |
688 | lists, which refer to types of their own, etc. etc. The | |
689 | whole shebang would need to be copied over recursively; you | |
690 | can't have inter-objfile pointers. The only thing to do is | |
691 | to leave stub types as stub types, and look them up afresh by | |
692 | name each time you encounter them. */ | |
693 | gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type)); | |
2fdde8f8 DJ |
694 | } |
695 | ||
7ba81444 MS |
696 | ntype = make_qualified_type (type, new_flags, |
697 | typeptr ? *typeptr : NULL); | |
c906108c | 698 | |
2fdde8f8 DJ |
699 | if (typeptr != NULL) |
700 | *typeptr = ntype; | |
a02fd225 | 701 | |
2fdde8f8 | 702 | return ntype; |
a02fd225 | 703 | } |
c906108c | 704 | |
06d66ee9 TT |
705 | /* Make a 'restrict'-qualified version of TYPE. */ |
706 | ||
707 | struct type * | |
708 | make_restrict_type (struct type *type) | |
709 | { | |
710 | return make_qualified_type (type, | |
711 | (TYPE_INSTANCE_FLAGS (type) | |
712 | | TYPE_INSTANCE_FLAG_RESTRICT), | |
713 | NULL); | |
714 | } | |
715 | ||
f1660027 TT |
716 | /* Make a type without const, volatile, or restrict. */ |
717 | ||
718 | struct type * | |
719 | make_unqualified_type (struct type *type) | |
720 | { | |
721 | return make_qualified_type (type, | |
722 | (TYPE_INSTANCE_FLAGS (type) | |
723 | & ~(TYPE_INSTANCE_FLAG_CONST | |
724 | | TYPE_INSTANCE_FLAG_VOLATILE | |
725 | | TYPE_INSTANCE_FLAG_RESTRICT)), | |
726 | NULL); | |
727 | } | |
728 | ||
a2c2acaf MW |
729 | /* Make a '_Atomic'-qualified version of TYPE. */ |
730 | ||
731 | struct type * | |
732 | make_atomic_type (struct type *type) | |
733 | { | |
734 | return make_qualified_type (type, | |
735 | (TYPE_INSTANCE_FLAGS (type) | |
736 | | TYPE_INSTANCE_FLAG_ATOMIC), | |
737 | NULL); | |
738 | } | |
739 | ||
2fdde8f8 DJ |
740 | /* Replace the contents of ntype with the type *type. This changes the |
741 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
742 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 743 | |
cda6c68a JB |
744 | In order to build recursive types, it's inevitable that we'll need |
745 | to update types in place --- but this sort of indiscriminate | |
746 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
747 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
748 | clear if more steps are needed. */ | |
5212577a | 749 | |
dd6bda65 DJ |
750 | void |
751 | replace_type (struct type *ntype, struct type *type) | |
752 | { | |
ab5d3da6 | 753 | struct type *chain; |
dd6bda65 | 754 | |
ad766c0a JB |
755 | /* These two types had better be in the same objfile. Otherwise, |
756 | the assignment of one type's main type structure to the other | |
757 | will produce a type with references to objects (names; field | |
758 | lists; etc.) allocated on an objfile other than its own. */ | |
e46dd0f4 | 759 | gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (type)); |
ad766c0a | 760 | |
2fdde8f8 | 761 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 762 | |
7ba81444 MS |
763 | /* The type length is not a part of the main type. Update it for |
764 | each type on the variant chain. */ | |
ab5d3da6 | 765 | chain = ntype; |
5f61c20e JK |
766 | do |
767 | { | |
768 | /* Assert that this element of the chain has no address-class bits | |
769 | set in its flags. Such type variants might have type lengths | |
770 | which are supposed to be different from the non-address-class | |
771 | variants. This assertion shouldn't ever be triggered because | |
772 | symbol readers which do construct address-class variants don't | |
773 | call replace_type(). */ | |
774 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
775 | ||
776 | TYPE_LENGTH (chain) = TYPE_LENGTH (type); | |
777 | chain = TYPE_CHAIN (chain); | |
778 | } | |
779 | while (ntype != chain); | |
ab5d3da6 | 780 | |
2fdde8f8 DJ |
781 | /* Assert that the two types have equivalent instance qualifiers. |
782 | This should be true for at least all of our debug readers. */ | |
783 | gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type)); | |
dd6bda65 DJ |
784 | } |
785 | ||
c906108c SS |
786 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
787 | May need to construct such a type if this is the first use. | |
788 | The TYPE is the type of the member. The DOMAIN is the type | |
789 | of the aggregate that the member belongs to. */ | |
790 | ||
791 | struct type * | |
0d5de010 | 792 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 793 | { |
52f0bd74 | 794 | struct type *mtype; |
c906108c | 795 | |
e9bb382b | 796 | mtype = alloc_type_copy (type); |
0d5de010 | 797 | smash_to_memberptr_type (mtype, domain, type); |
c16abbde | 798 | return mtype; |
c906108c SS |
799 | } |
800 | ||
0d5de010 DJ |
801 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
802 | ||
803 | struct type * | |
804 | lookup_methodptr_type (struct type *to_type) | |
805 | { | |
806 | struct type *mtype; | |
807 | ||
e9bb382b | 808 | mtype = alloc_type_copy (to_type); |
0b92b5bb | 809 | smash_to_methodptr_type (mtype, to_type); |
0d5de010 DJ |
810 | return mtype; |
811 | } | |
812 | ||
7ba81444 MS |
813 | /* Allocate a stub method whose return type is TYPE. This apparently |
814 | happens for speed of symbol reading, since parsing out the | |
815 | arguments to the method is cpu-intensive, the way we are doing it. | |
816 | So, we will fill in arguments later. This always returns a fresh | |
817 | type. */ | |
c906108c SS |
818 | |
819 | struct type * | |
fba45db2 | 820 | allocate_stub_method (struct type *type) |
c906108c SS |
821 | { |
822 | struct type *mtype; | |
823 | ||
e9bb382b UW |
824 | mtype = alloc_type_copy (type); |
825 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; | |
826 | TYPE_LENGTH (mtype) = 1; | |
827 | TYPE_STUB (mtype) = 1; | |
c906108c | 828 | TYPE_TARGET_TYPE (mtype) = type; |
4bfb94b8 | 829 | /* TYPE_SELF_TYPE (mtype) = unknown yet */ |
c16abbde | 830 | return mtype; |
c906108c SS |
831 | } |
832 | ||
729efb13 SA |
833 | /* Create a range type with a dynamic range from LOW_BOUND to |
834 | HIGH_BOUND, inclusive. See create_range_type for further details. */ | |
c906108c SS |
835 | |
836 | struct type * | |
729efb13 SA |
837 | create_range_type (struct type *result_type, struct type *index_type, |
838 | const struct dynamic_prop *low_bound, | |
839 | const struct dynamic_prop *high_bound) | |
c906108c SS |
840 | { |
841 | if (result_type == NULL) | |
e9bb382b | 842 | result_type = alloc_type_copy (index_type); |
c906108c SS |
843 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; |
844 | TYPE_TARGET_TYPE (result_type) = index_type; | |
74a9bb82 | 845 | if (TYPE_STUB (index_type)) |
876cecd0 | 846 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c SS |
847 | else |
848 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
729efb13 | 849 | |
43bbcdc2 PH |
850 | TYPE_RANGE_DATA (result_type) = (struct range_bounds *) |
851 | TYPE_ZALLOC (result_type, sizeof (struct range_bounds)); | |
729efb13 SA |
852 | TYPE_RANGE_DATA (result_type)->low = *low_bound; |
853 | TYPE_RANGE_DATA (result_type)->high = *high_bound; | |
c906108c | 854 | |
729efb13 | 855 | if (low_bound->kind == PROP_CONST && low_bound->data.const_val >= 0) |
876cecd0 | 856 | TYPE_UNSIGNED (result_type) = 1; |
c906108c | 857 | |
45e44d27 JB |
858 | /* Ada allows the declaration of range types whose upper bound is |
859 | less than the lower bound, so checking the lower bound is not | |
860 | enough. Make sure we do not mark a range type whose upper bound | |
861 | is negative as unsigned. */ | |
862 | if (high_bound->kind == PROP_CONST && high_bound->data.const_val < 0) | |
863 | TYPE_UNSIGNED (result_type) = 0; | |
864 | ||
262452ec | 865 | return result_type; |
c906108c SS |
866 | } |
867 | ||
729efb13 SA |
868 | /* Create a range type using either a blank type supplied in |
869 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
870 | INDEX_TYPE. | |
871 | ||
872 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND | |
873 | to HIGH_BOUND, inclusive. | |
874 | ||
875 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
876 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
877 | ||
878 | struct type * | |
879 | create_static_range_type (struct type *result_type, struct type *index_type, | |
880 | LONGEST low_bound, LONGEST high_bound) | |
881 | { | |
882 | struct dynamic_prop low, high; | |
883 | ||
884 | low.kind = PROP_CONST; | |
885 | low.data.const_val = low_bound; | |
886 | ||
887 | high.kind = PROP_CONST; | |
888 | high.data.const_val = high_bound; | |
889 | ||
890 | result_type = create_range_type (result_type, index_type, &low, &high); | |
891 | ||
892 | return result_type; | |
893 | } | |
894 | ||
80180f79 SA |
895 | /* Predicate tests whether BOUNDS are static. Returns 1 if all bounds values |
896 | are static, otherwise returns 0. */ | |
897 | ||
898 | static int | |
899 | has_static_range (const struct range_bounds *bounds) | |
900 | { | |
901 | return (bounds->low.kind == PROP_CONST | |
902 | && bounds->high.kind == PROP_CONST); | |
903 | } | |
904 | ||
905 | ||
7ba81444 MS |
906 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
907 | TYPE. Return 1 if type is a range type, 0 if it is discrete (and | |
908 | bounds will fit in LONGEST), or -1 otherwise. */ | |
c906108c SS |
909 | |
910 | int | |
fba45db2 | 911 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c | 912 | { |
f168693b | 913 | type = check_typedef (type); |
c906108c SS |
914 | switch (TYPE_CODE (type)) |
915 | { | |
916 | case TYPE_CODE_RANGE: | |
917 | *lowp = TYPE_LOW_BOUND (type); | |
918 | *highp = TYPE_HIGH_BOUND (type); | |
919 | return 1; | |
920 | case TYPE_CODE_ENUM: | |
921 | if (TYPE_NFIELDS (type) > 0) | |
922 | { | |
923 | /* The enums may not be sorted by value, so search all | |
0963b4bd | 924 | entries. */ |
c906108c SS |
925 | int i; |
926 | ||
14e75d8e | 927 | *lowp = *highp = TYPE_FIELD_ENUMVAL (type, 0); |
c906108c SS |
928 | for (i = 0; i < TYPE_NFIELDS (type); i++) |
929 | { | |
14e75d8e JK |
930 | if (TYPE_FIELD_ENUMVAL (type, i) < *lowp) |
931 | *lowp = TYPE_FIELD_ENUMVAL (type, i); | |
932 | if (TYPE_FIELD_ENUMVAL (type, i) > *highp) | |
933 | *highp = TYPE_FIELD_ENUMVAL (type, i); | |
c906108c SS |
934 | } |
935 | ||
7ba81444 | 936 | /* Set unsigned indicator if warranted. */ |
c5aa993b | 937 | if (*lowp >= 0) |
c906108c | 938 | { |
876cecd0 | 939 | TYPE_UNSIGNED (type) = 1; |
c906108c SS |
940 | } |
941 | } | |
942 | else | |
943 | { | |
944 | *lowp = 0; | |
945 | *highp = -1; | |
946 | } | |
947 | return 0; | |
948 | case TYPE_CODE_BOOL: | |
949 | *lowp = 0; | |
950 | *highp = 1; | |
951 | return 0; | |
952 | case TYPE_CODE_INT: | |
c5aa993b | 953 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
954 | return -1; |
955 | if (!TYPE_UNSIGNED (type)) | |
956 | { | |
c5aa993b | 957 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
958 | *highp = -*lowp - 1; |
959 | return 0; | |
960 | } | |
7ba81444 | 961 | /* ... fall through for unsigned ints ... */ |
c906108c SS |
962 | case TYPE_CODE_CHAR: |
963 | *lowp = 0; | |
964 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 | 965 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
7ba81444 | 966 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
c906108c SS |
967 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
968 | *highp = (*highp - 1) | *highp; | |
969 | return 0; | |
970 | default: | |
971 | return -1; | |
972 | } | |
973 | } | |
974 | ||
dbc98a8b KW |
975 | /* Assuming TYPE is a simple, non-empty array type, compute its upper |
976 | and lower bound. Save the low bound into LOW_BOUND if not NULL. | |
977 | Save the high bound into HIGH_BOUND if not NULL. | |
978 | ||
0963b4bd | 979 | Return 1 if the operation was successful. Return zero otherwise, |
dbc98a8b KW |
980 | in which case the values of LOW_BOUND and HIGH_BOUNDS are unmodified. |
981 | ||
982 | We now simply use get_discrete_bounds call to get the values | |
983 | of the low and high bounds. | |
984 | get_discrete_bounds can return three values: | |
985 | 1, meaning that index is a range, | |
986 | 0, meaning that index is a discrete type, | |
987 | or -1 for failure. */ | |
988 | ||
989 | int | |
990 | get_array_bounds (struct type *type, LONGEST *low_bound, LONGEST *high_bound) | |
991 | { | |
992 | struct type *index = TYPE_INDEX_TYPE (type); | |
993 | LONGEST low = 0; | |
994 | LONGEST high = 0; | |
995 | int res; | |
996 | ||
997 | if (index == NULL) | |
998 | return 0; | |
999 | ||
1000 | res = get_discrete_bounds (index, &low, &high); | |
1001 | if (res == -1) | |
1002 | return 0; | |
1003 | ||
1004 | /* Check if the array bounds are undefined. */ | |
1005 | if (res == 1 | |
1006 | && ((low_bound && TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED (type)) | |
1007 | || (high_bound && TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type)))) | |
1008 | return 0; | |
1009 | ||
1010 | if (low_bound) | |
1011 | *low_bound = low; | |
1012 | ||
1013 | if (high_bound) | |
1014 | *high_bound = high; | |
1015 | ||
1016 | return 1; | |
1017 | } | |
1018 | ||
aa715135 JG |
1019 | /* Assuming that TYPE is a discrete type and VAL is a valid integer |
1020 | representation of a value of this type, save the corresponding | |
1021 | position number in POS. | |
1022 | ||
1023 | Its differs from VAL only in the case of enumeration types. In | |
1024 | this case, the position number of the value of the first listed | |
1025 | enumeration literal is zero; the position number of the value of | |
1026 | each subsequent enumeration literal is one more than that of its | |
1027 | predecessor in the list. | |
1028 | ||
1029 | Return 1 if the operation was successful. Return zero otherwise, | |
1030 | in which case the value of POS is unmodified. | |
1031 | */ | |
1032 | ||
1033 | int | |
1034 | discrete_position (struct type *type, LONGEST val, LONGEST *pos) | |
1035 | { | |
1036 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) | |
1037 | { | |
1038 | int i; | |
1039 | ||
1040 | for (i = 0; i < TYPE_NFIELDS (type); i += 1) | |
1041 | { | |
1042 | if (val == TYPE_FIELD_ENUMVAL (type, i)) | |
1043 | { | |
1044 | *pos = i; | |
1045 | return 1; | |
1046 | } | |
1047 | } | |
1048 | /* Invalid enumeration value. */ | |
1049 | return 0; | |
1050 | } | |
1051 | else | |
1052 | { | |
1053 | *pos = val; | |
1054 | return 1; | |
1055 | } | |
1056 | } | |
1057 | ||
7ba81444 MS |
1058 | /* Create an array type using either a blank type supplied in |
1059 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
1060 | RANGE_TYPE. | |
c906108c SS |
1061 | |
1062 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
1063 | RANGE_TYPE. | |
1064 | ||
dc53a7ad JB |
1065 | If BIT_STRIDE is not zero, build a packed array type whose element |
1066 | size is BIT_STRIDE. Otherwise, ignore this parameter. | |
1067 | ||
7ba81444 MS |
1068 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1069 | sure it is TYPE_CODE_UNDEF before we bash it into an array | |
1070 | type? */ | |
c906108c SS |
1071 | |
1072 | struct type * | |
dc53a7ad JB |
1073 | create_array_type_with_stride (struct type *result_type, |
1074 | struct type *element_type, | |
1075 | struct type *range_type, | |
1076 | unsigned int bit_stride) | |
c906108c | 1077 | { |
c906108c | 1078 | if (result_type == NULL) |
e9bb382b UW |
1079 | result_type = alloc_type_copy (range_type); |
1080 | ||
c906108c SS |
1081 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
1082 | TYPE_TARGET_TYPE (result_type) = element_type; | |
3f2f83dd | 1083 | if (has_static_range (TYPE_RANGE_DATA (range_type)) |
b4a7fcab JB |
1084 | && (!type_not_associated (result_type) |
1085 | && !type_not_allocated (result_type))) | |
80180f79 SA |
1086 | { |
1087 | LONGEST low_bound, high_bound; | |
1088 | ||
1089 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
1090 | low_bound = high_bound = 0; | |
f168693b | 1091 | element_type = check_typedef (element_type); |
80180f79 SA |
1092 | /* Be careful when setting the array length. Ada arrays can be |
1093 | empty arrays with the high_bound being smaller than the low_bound. | |
1094 | In such cases, the array length should be zero. */ | |
1095 | if (high_bound < low_bound) | |
1096 | TYPE_LENGTH (result_type) = 0; | |
1097 | else if (bit_stride > 0) | |
1098 | TYPE_LENGTH (result_type) = | |
1099 | (bit_stride * (high_bound - low_bound + 1) + 7) / 8; | |
1100 | else | |
1101 | TYPE_LENGTH (result_type) = | |
1102 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
1103 | } | |
ab0d6e0d | 1104 | else |
80180f79 SA |
1105 | { |
1106 | /* This type is dynamic and its length needs to be computed | |
1107 | on demand. In the meantime, avoid leaving the TYPE_LENGTH | |
1108 | undefined by setting it to zero. Although we are not expected | |
1109 | to trust TYPE_LENGTH in this case, setting the size to zero | |
1110 | allows us to avoid allocating objects of random sizes in case | |
1111 | we accidently do. */ | |
1112 | TYPE_LENGTH (result_type) = 0; | |
1113 | } | |
1114 | ||
c906108c SS |
1115 | TYPE_NFIELDS (result_type) = 1; |
1116 | TYPE_FIELDS (result_type) = | |
1deafd4e | 1117 | (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); |
262452ec | 1118 | TYPE_INDEX_TYPE (result_type) = range_type; |
dc53a7ad JB |
1119 | if (bit_stride > 0) |
1120 | TYPE_FIELD_BITSIZE (result_type, 0) = bit_stride; | |
c906108c | 1121 | |
0963b4bd | 1122 | /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays. */ |
c906108c | 1123 | if (TYPE_LENGTH (result_type) == 0) |
876cecd0 | 1124 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c | 1125 | |
c16abbde | 1126 | return result_type; |
c906108c SS |
1127 | } |
1128 | ||
dc53a7ad JB |
1129 | /* Same as create_array_type_with_stride but with no bit_stride |
1130 | (BIT_STRIDE = 0), thus building an unpacked array. */ | |
1131 | ||
1132 | struct type * | |
1133 | create_array_type (struct type *result_type, | |
1134 | struct type *element_type, | |
1135 | struct type *range_type) | |
1136 | { | |
1137 | return create_array_type_with_stride (result_type, element_type, | |
1138 | range_type, 0); | |
1139 | } | |
1140 | ||
e3506a9f UW |
1141 | struct type * |
1142 | lookup_array_range_type (struct type *element_type, | |
63375b74 | 1143 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f | 1144 | { |
50810684 | 1145 | struct gdbarch *gdbarch = get_type_arch (element_type); |
e3506a9f UW |
1146 | struct type *index_type = builtin_type (gdbarch)->builtin_int; |
1147 | struct type *range_type | |
0c9c3474 | 1148 | = create_static_range_type (NULL, index_type, low_bound, high_bound); |
d8734c88 | 1149 | |
e3506a9f UW |
1150 | return create_array_type (NULL, element_type, range_type); |
1151 | } | |
1152 | ||
7ba81444 MS |
1153 | /* Create a string type using either a blank type supplied in |
1154 | RESULT_TYPE, or creating a new type. String types are similar | |
1155 | enough to array of char types that we can use create_array_type to | |
1156 | build the basic type and then bash it into a string type. | |
c906108c SS |
1157 | |
1158 | For fixed length strings, the range type contains 0 as the lower | |
1159 | bound and the length of the string minus one as the upper bound. | |
1160 | ||
7ba81444 MS |
1161 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1162 | sure it is TYPE_CODE_UNDEF before we bash it into a string | |
1163 | type? */ | |
c906108c SS |
1164 | |
1165 | struct type * | |
3b7538c0 UW |
1166 | create_string_type (struct type *result_type, |
1167 | struct type *string_char_type, | |
7ba81444 | 1168 | struct type *range_type) |
c906108c SS |
1169 | { |
1170 | result_type = create_array_type (result_type, | |
f290d38e | 1171 | string_char_type, |
c906108c SS |
1172 | range_type); |
1173 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
c16abbde | 1174 | return result_type; |
c906108c SS |
1175 | } |
1176 | ||
e3506a9f UW |
1177 | struct type * |
1178 | lookup_string_range_type (struct type *string_char_type, | |
63375b74 | 1179 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f UW |
1180 | { |
1181 | struct type *result_type; | |
d8734c88 | 1182 | |
e3506a9f UW |
1183 | result_type = lookup_array_range_type (string_char_type, |
1184 | low_bound, high_bound); | |
1185 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
1186 | return result_type; | |
1187 | } | |
1188 | ||
c906108c | 1189 | struct type * |
fba45db2 | 1190 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c | 1191 | { |
c906108c | 1192 | if (result_type == NULL) |
e9bb382b UW |
1193 | result_type = alloc_type_copy (domain_type); |
1194 | ||
c906108c SS |
1195 | TYPE_CODE (result_type) = TYPE_CODE_SET; |
1196 | TYPE_NFIELDS (result_type) = 1; | |
224c3ddb SM |
1197 | TYPE_FIELDS (result_type) |
1198 | = (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); | |
c906108c | 1199 | |
74a9bb82 | 1200 | if (!TYPE_STUB (domain_type)) |
c906108c | 1201 | { |
f9780d5b | 1202 | LONGEST low_bound, high_bound, bit_length; |
d8734c88 | 1203 | |
c906108c SS |
1204 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
1205 | low_bound = high_bound = 0; | |
1206 | bit_length = high_bound - low_bound + 1; | |
1207 | TYPE_LENGTH (result_type) | |
1208 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
f9780d5b | 1209 | if (low_bound >= 0) |
876cecd0 | 1210 | TYPE_UNSIGNED (result_type) = 1; |
c906108c SS |
1211 | } |
1212 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
1213 | ||
c16abbde | 1214 | return result_type; |
c906108c SS |
1215 | } |
1216 | ||
ea37ba09 DJ |
1217 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
1218 | and any array types nested inside it. */ | |
1219 | ||
1220 | void | |
1221 | make_vector_type (struct type *array_type) | |
1222 | { | |
1223 | struct type *inner_array, *elt_type; | |
1224 | int flags; | |
1225 | ||
1226 | /* Find the innermost array type, in case the array is | |
1227 | multi-dimensional. */ | |
1228 | inner_array = array_type; | |
1229 | while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY) | |
1230 | inner_array = TYPE_TARGET_TYPE (inner_array); | |
1231 | ||
1232 | elt_type = TYPE_TARGET_TYPE (inner_array); | |
1233 | if (TYPE_CODE (elt_type) == TYPE_CODE_INT) | |
1234 | { | |
2844d6b5 | 1235 | flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_INSTANCE_FLAG_NOTTEXT; |
ea37ba09 DJ |
1236 | elt_type = make_qualified_type (elt_type, flags, NULL); |
1237 | TYPE_TARGET_TYPE (inner_array) = elt_type; | |
1238 | } | |
1239 | ||
876cecd0 | 1240 | TYPE_VECTOR (array_type) = 1; |
ea37ba09 DJ |
1241 | } |
1242 | ||
794ac428 | 1243 | struct type * |
ac3aafc7 EZ |
1244 | init_vector_type (struct type *elt_type, int n) |
1245 | { | |
1246 | struct type *array_type; | |
d8734c88 | 1247 | |
e3506a9f | 1248 | array_type = lookup_array_range_type (elt_type, 0, n - 1); |
ea37ba09 | 1249 | make_vector_type (array_type); |
ac3aafc7 EZ |
1250 | return array_type; |
1251 | } | |
1252 | ||
09e2d7c7 DE |
1253 | /* Internal routine called by TYPE_SELF_TYPE to return the type that TYPE |
1254 | belongs to. In c++ this is the class of "this", but TYPE_THIS_TYPE is too | |
1255 | confusing. "self" is a common enough replacement for "this". | |
1256 | TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or | |
1257 | TYPE_CODE_METHOD. */ | |
1258 | ||
1259 | struct type * | |
1260 | internal_type_self_type (struct type *type) | |
1261 | { | |
1262 | switch (TYPE_CODE (type)) | |
1263 | { | |
1264 | case TYPE_CODE_METHODPTR: | |
1265 | case TYPE_CODE_MEMBERPTR: | |
eaaf76ab DE |
1266 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) |
1267 | return NULL; | |
09e2d7c7 DE |
1268 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE); |
1269 | return TYPE_MAIN_TYPE (type)->type_specific.self_type; | |
1270 | case TYPE_CODE_METHOD: | |
eaaf76ab DE |
1271 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) |
1272 | return NULL; | |
09e2d7c7 DE |
1273 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC); |
1274 | return TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type; | |
1275 | default: | |
1276 | gdb_assert_not_reached ("bad type"); | |
1277 | } | |
1278 | } | |
1279 | ||
1280 | /* Set the type of the class that TYPE belongs to. | |
1281 | In c++ this is the class of "this". | |
1282 | TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or | |
1283 | TYPE_CODE_METHOD. */ | |
1284 | ||
1285 | void | |
1286 | set_type_self_type (struct type *type, struct type *self_type) | |
1287 | { | |
1288 | switch (TYPE_CODE (type)) | |
1289 | { | |
1290 | case TYPE_CODE_METHODPTR: | |
1291 | case TYPE_CODE_MEMBERPTR: | |
1292 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) | |
1293 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_SELF_TYPE; | |
1294 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE); | |
1295 | TYPE_MAIN_TYPE (type)->type_specific.self_type = self_type; | |
1296 | break; | |
1297 | case TYPE_CODE_METHOD: | |
1298 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) | |
1299 | INIT_FUNC_SPECIFIC (type); | |
1300 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC); | |
1301 | TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type = self_type; | |
1302 | break; | |
1303 | default: | |
1304 | gdb_assert_not_reached ("bad type"); | |
1305 | } | |
1306 | } | |
1307 | ||
1308 | /* Smash TYPE to be a type of pointers to members of SELF_TYPE with type | |
0d5de010 DJ |
1309 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a |
1310 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
1311 | TYPE doesn't include the offset (that's the value of the MEMBER | |
1312 | itself), but does include the structure type into which it points | |
1313 | (for some reason). | |
c906108c | 1314 | |
7ba81444 MS |
1315 | When "smashing" the type, we preserve the objfile that the old type |
1316 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1317 | allocated. */ |
1318 | ||
1319 | void | |
09e2d7c7 | 1320 | smash_to_memberptr_type (struct type *type, struct type *self_type, |
0d5de010 | 1321 | struct type *to_type) |
c906108c | 1322 | { |
2fdde8f8 | 1323 | smash_type (type); |
09e2d7c7 | 1324 | TYPE_CODE (type) = TYPE_CODE_MEMBERPTR; |
c906108c | 1325 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1326 | set_type_self_type (type, self_type); |
0d5de010 DJ |
1327 | /* Assume that a data member pointer is the same size as a normal |
1328 | pointer. */ | |
50810684 UW |
1329 | TYPE_LENGTH (type) |
1330 | = gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT; | |
c906108c SS |
1331 | } |
1332 | ||
0b92b5bb TT |
1333 | /* Smash TYPE to be a type of pointer to methods type TO_TYPE. |
1334 | ||
1335 | When "smashing" the type, we preserve the objfile that the old type | |
1336 | pointed to, since we aren't changing where the type is actually | |
1337 | allocated. */ | |
1338 | ||
1339 | void | |
1340 | smash_to_methodptr_type (struct type *type, struct type *to_type) | |
1341 | { | |
1342 | smash_type (type); | |
09e2d7c7 | 1343 | TYPE_CODE (type) = TYPE_CODE_METHODPTR; |
0b92b5bb | 1344 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1345 | set_type_self_type (type, TYPE_SELF_TYPE (to_type)); |
0b92b5bb | 1346 | TYPE_LENGTH (type) = cplus_method_ptr_size (to_type); |
0b92b5bb TT |
1347 | } |
1348 | ||
09e2d7c7 | 1349 | /* Smash TYPE to be a type of method of SELF_TYPE with type TO_TYPE. |
c906108c SS |
1350 | METHOD just means `function that gets an extra "this" argument'. |
1351 | ||
7ba81444 MS |
1352 | When "smashing" the type, we preserve the objfile that the old type |
1353 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1354 | allocated. */ |
1355 | ||
1356 | void | |
09e2d7c7 | 1357 | smash_to_method_type (struct type *type, struct type *self_type, |
ad2f7632 DJ |
1358 | struct type *to_type, struct field *args, |
1359 | int nargs, int varargs) | |
c906108c | 1360 | { |
2fdde8f8 | 1361 | smash_type (type); |
09e2d7c7 | 1362 | TYPE_CODE (type) = TYPE_CODE_METHOD; |
c906108c | 1363 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1364 | set_type_self_type (type, self_type); |
ad2f7632 DJ |
1365 | TYPE_FIELDS (type) = args; |
1366 | TYPE_NFIELDS (type) = nargs; | |
1367 | if (varargs) | |
876cecd0 | 1368 | TYPE_VARARGS (type) = 1; |
c906108c | 1369 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
c906108c SS |
1370 | } |
1371 | ||
1372 | /* Return a typename for a struct/union/enum type without "struct ", | |
1373 | "union ", or "enum ". If the type has a NULL name, return NULL. */ | |
1374 | ||
0d5cff50 | 1375 | const char * |
aa1ee363 | 1376 | type_name_no_tag (const struct type *type) |
c906108c SS |
1377 | { |
1378 | if (TYPE_TAG_NAME (type) != NULL) | |
1379 | return TYPE_TAG_NAME (type); | |
1380 | ||
7ba81444 MS |
1381 | /* Is there code which expects this to return the name if there is |
1382 | no tag name? My guess is that this is mainly used for C++ in | |
1383 | cases where the two will always be the same. */ | |
c906108c SS |
1384 | return TYPE_NAME (type); |
1385 | } | |
1386 | ||
d8228535 JK |
1387 | /* A wrapper of type_name_no_tag which calls error if the type is anonymous. |
1388 | Since GCC PR debug/47510 DWARF provides associated information to detect the | |
1389 | anonymous class linkage name from its typedef. | |
1390 | ||
1391 | Parameter TYPE should not yet have CHECK_TYPEDEF applied, this function will | |
1392 | apply it itself. */ | |
1393 | ||
1394 | const char * | |
1395 | type_name_no_tag_or_error (struct type *type) | |
1396 | { | |
1397 | struct type *saved_type = type; | |
1398 | const char *name; | |
1399 | struct objfile *objfile; | |
1400 | ||
f168693b | 1401 | type = check_typedef (type); |
d8228535 JK |
1402 | |
1403 | name = type_name_no_tag (type); | |
1404 | if (name != NULL) | |
1405 | return name; | |
1406 | ||
1407 | name = type_name_no_tag (saved_type); | |
1408 | objfile = TYPE_OBJFILE (saved_type); | |
1409 | error (_("Invalid anonymous type %s [in module %s], GCC PR debug/47510 bug?"), | |
4262abfb JK |
1410 | name ? name : "<anonymous>", |
1411 | objfile ? objfile_name (objfile) : "<arch>"); | |
d8228535 JK |
1412 | } |
1413 | ||
7ba81444 MS |
1414 | /* Lookup a typedef or primitive type named NAME, visible in lexical |
1415 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
1416 | suitably defined. */ | |
c906108c SS |
1417 | |
1418 | struct type * | |
e6c014f2 | 1419 | lookup_typename (const struct language_defn *language, |
ddd49eee | 1420 | struct gdbarch *gdbarch, const char *name, |
34eaf542 | 1421 | const struct block *block, int noerr) |
c906108c | 1422 | { |
52f0bd74 | 1423 | struct symbol *sym; |
c906108c | 1424 | |
1994afbf | 1425 | sym = lookup_symbol_in_language (name, block, VAR_DOMAIN, |
d12307c1 | 1426 | language->la_language, NULL).symbol; |
c51fe631 DE |
1427 | if (sym != NULL && SYMBOL_CLASS (sym) == LOC_TYPEDEF) |
1428 | return SYMBOL_TYPE (sym); | |
1429 | ||
c51fe631 DE |
1430 | if (noerr) |
1431 | return NULL; | |
1432 | error (_("No type named %s."), name); | |
c906108c SS |
1433 | } |
1434 | ||
1435 | struct type * | |
e6c014f2 | 1436 | lookup_unsigned_typename (const struct language_defn *language, |
0d5cff50 | 1437 | struct gdbarch *gdbarch, const char *name) |
c906108c | 1438 | { |
224c3ddb | 1439 | char *uns = (char *) alloca (strlen (name) + 10); |
c906108c SS |
1440 | |
1441 | strcpy (uns, "unsigned "); | |
1442 | strcpy (uns + 9, name); | |
e6c014f2 | 1443 | return lookup_typename (language, gdbarch, uns, (struct block *) NULL, 0); |
c906108c SS |
1444 | } |
1445 | ||
1446 | struct type * | |
e6c014f2 | 1447 | lookup_signed_typename (const struct language_defn *language, |
0d5cff50 | 1448 | struct gdbarch *gdbarch, const char *name) |
c906108c SS |
1449 | { |
1450 | struct type *t; | |
224c3ddb | 1451 | char *uns = (char *) alloca (strlen (name) + 8); |
c906108c SS |
1452 | |
1453 | strcpy (uns, "signed "); | |
1454 | strcpy (uns + 7, name); | |
e6c014f2 | 1455 | t = lookup_typename (language, gdbarch, uns, (struct block *) NULL, 1); |
7ba81444 | 1456 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
c906108c SS |
1457 | if (t != NULL) |
1458 | return t; | |
e6c014f2 | 1459 | return lookup_typename (language, gdbarch, name, (struct block *) NULL, 0); |
c906108c SS |
1460 | } |
1461 | ||
1462 | /* Lookup a structure type named "struct NAME", | |
1463 | visible in lexical block BLOCK. */ | |
1464 | ||
1465 | struct type * | |
270140bd | 1466 | lookup_struct (const char *name, const struct block *block) |
c906108c | 1467 | { |
52f0bd74 | 1468 | struct symbol *sym; |
c906108c | 1469 | |
d12307c1 | 1470 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1471 | |
1472 | if (sym == NULL) | |
1473 | { | |
8a3fe4f8 | 1474 | error (_("No struct type named %s."), name); |
c906108c SS |
1475 | } |
1476 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1477 | { | |
7ba81444 MS |
1478 | error (_("This context has class, union or enum %s, not a struct."), |
1479 | name); | |
c906108c SS |
1480 | } |
1481 | return (SYMBOL_TYPE (sym)); | |
1482 | } | |
1483 | ||
1484 | /* Lookup a union type named "union NAME", | |
1485 | visible in lexical block BLOCK. */ | |
1486 | ||
1487 | struct type * | |
270140bd | 1488 | lookup_union (const char *name, const struct block *block) |
c906108c | 1489 | { |
52f0bd74 | 1490 | struct symbol *sym; |
c5aa993b | 1491 | struct type *t; |
c906108c | 1492 | |
d12307c1 | 1493 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1494 | |
1495 | if (sym == NULL) | |
8a3fe4f8 | 1496 | error (_("No union type named %s."), name); |
c906108c | 1497 | |
c5aa993b | 1498 | t = SYMBOL_TYPE (sym); |
c906108c SS |
1499 | |
1500 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
c16abbde | 1501 | return t; |
c906108c | 1502 | |
7ba81444 MS |
1503 | /* If we get here, it's not a union. */ |
1504 | error (_("This context has class, struct or enum %s, not a union."), | |
1505 | name); | |
c906108c SS |
1506 | } |
1507 | ||
c906108c SS |
1508 | /* Lookup an enum type named "enum NAME", |
1509 | visible in lexical block BLOCK. */ | |
1510 | ||
1511 | struct type * | |
270140bd | 1512 | lookup_enum (const char *name, const struct block *block) |
c906108c | 1513 | { |
52f0bd74 | 1514 | struct symbol *sym; |
c906108c | 1515 | |
d12307c1 | 1516 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1517 | if (sym == NULL) |
1518 | { | |
8a3fe4f8 | 1519 | error (_("No enum type named %s."), name); |
c906108c SS |
1520 | } |
1521 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
1522 | { | |
7ba81444 MS |
1523 | error (_("This context has class, struct or union %s, not an enum."), |
1524 | name); | |
c906108c SS |
1525 | } |
1526 | return (SYMBOL_TYPE (sym)); | |
1527 | } | |
1528 | ||
1529 | /* Lookup a template type named "template NAME<TYPE>", | |
1530 | visible in lexical block BLOCK. */ | |
1531 | ||
1532 | struct type * | |
7ba81444 | 1533 | lookup_template_type (char *name, struct type *type, |
270140bd | 1534 | const struct block *block) |
c906108c SS |
1535 | { |
1536 | struct symbol *sym; | |
7ba81444 MS |
1537 | char *nam = (char *) |
1538 | alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4); | |
d8734c88 | 1539 | |
c906108c SS |
1540 | strcpy (nam, name); |
1541 | strcat (nam, "<"); | |
0004e5a2 | 1542 | strcat (nam, TYPE_NAME (type)); |
0963b4bd | 1543 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1544 | |
d12307c1 | 1545 | sym = lookup_symbol (nam, block, VAR_DOMAIN, 0).symbol; |
c906108c SS |
1546 | |
1547 | if (sym == NULL) | |
1548 | { | |
8a3fe4f8 | 1549 | error (_("No template type named %s."), name); |
c906108c SS |
1550 | } |
1551 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1552 | { | |
7ba81444 MS |
1553 | error (_("This context has class, union or enum %s, not a struct."), |
1554 | name); | |
c906108c SS |
1555 | } |
1556 | return (SYMBOL_TYPE (sym)); | |
1557 | } | |
1558 | ||
7ba81444 MS |
1559 | /* Given a type TYPE, lookup the type of the component of type named |
1560 | NAME. | |
c906108c | 1561 | |
7ba81444 MS |
1562 | TYPE can be either a struct or union, or a pointer or reference to |
1563 | a struct or union. If it is a pointer or reference, its target | |
1564 | type is automatically used. Thus '.' and '->' are interchangable, | |
1565 | as specified for the definitions of the expression element types | |
1566 | STRUCTOP_STRUCT and STRUCTOP_PTR. | |
c906108c SS |
1567 | |
1568 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
1569 | If NAME is the name of a baseclass type, return that type. */ | |
1570 | ||
1571 | struct type * | |
d7561cbb | 1572 | lookup_struct_elt_type (struct type *type, const char *name, int noerr) |
c906108c SS |
1573 | { |
1574 | int i; | |
fe978cb0 | 1575 | char *type_name; |
c906108c SS |
1576 | |
1577 | for (;;) | |
1578 | { | |
f168693b | 1579 | type = check_typedef (type); |
c906108c SS |
1580 | if (TYPE_CODE (type) != TYPE_CODE_PTR |
1581 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1582 | break; | |
1583 | type = TYPE_TARGET_TYPE (type); | |
1584 | } | |
1585 | ||
687d6395 MS |
1586 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
1587 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
c906108c | 1588 | { |
fe978cb0 PA |
1589 | type_name = type_to_string (type); |
1590 | make_cleanup (xfree, type_name); | |
1591 | error (_("Type %s is not a structure or union type."), type_name); | |
c906108c SS |
1592 | } |
1593 | ||
1594 | #if 0 | |
7ba81444 MS |
1595 | /* FIXME: This change put in by Michael seems incorrect for the case |
1596 | where the structure tag name is the same as the member name. | |
0963b4bd | 1597 | I.e. when doing "ptype bell->bar" for "struct foo { int bar; int |
7ba81444 | 1598 | foo; } bell;" Disabled by fnf. */ |
c906108c | 1599 | { |
fe978cb0 | 1600 | char *type_name; |
c906108c | 1601 | |
fe978cb0 PA |
1602 | type_name = type_name_no_tag (type); |
1603 | if (type_name != NULL && strcmp (type_name, name) == 0) | |
c906108c SS |
1604 | return type; |
1605 | } | |
1606 | #endif | |
1607 | ||
1608 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1609 | { | |
0d5cff50 | 1610 | const char *t_field_name = TYPE_FIELD_NAME (type, i); |
c906108c | 1611 | |
db577aea | 1612 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c SS |
1613 | { |
1614 | return TYPE_FIELD_TYPE (type, i); | |
1615 | } | |
f5a010c0 PM |
1616 | else if (!t_field_name || *t_field_name == '\0') |
1617 | { | |
d8734c88 MS |
1618 | struct type *subtype |
1619 | = lookup_struct_elt_type (TYPE_FIELD_TYPE (type, i), name, 1); | |
1620 | ||
f5a010c0 PM |
1621 | if (subtype != NULL) |
1622 | return subtype; | |
1623 | } | |
c906108c SS |
1624 | } |
1625 | ||
1626 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1627 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1628 | { | |
1629 | struct type *t; | |
1630 | ||
9733fc94 | 1631 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 1); |
c906108c SS |
1632 | if (t != NULL) |
1633 | { | |
1634 | return t; | |
1635 | } | |
1636 | } | |
1637 | ||
1638 | if (noerr) | |
1639 | { | |
1640 | return NULL; | |
1641 | } | |
c5aa993b | 1642 | |
fe978cb0 PA |
1643 | type_name = type_to_string (type); |
1644 | make_cleanup (xfree, type_name); | |
1645 | error (_("Type %s has no component named %s."), type_name, name); | |
c906108c SS |
1646 | } |
1647 | ||
ed3ef339 DE |
1648 | /* Store in *MAX the largest number representable by unsigned integer type |
1649 | TYPE. */ | |
1650 | ||
1651 | void | |
1652 | get_unsigned_type_max (struct type *type, ULONGEST *max) | |
1653 | { | |
1654 | unsigned int n; | |
1655 | ||
f168693b | 1656 | type = check_typedef (type); |
ed3ef339 DE |
1657 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && TYPE_UNSIGNED (type)); |
1658 | gdb_assert (TYPE_LENGTH (type) <= sizeof (ULONGEST)); | |
1659 | ||
1660 | /* Written this way to avoid overflow. */ | |
1661 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1662 | *max = ((((ULONGEST) 1 << (n - 1)) - 1) << 1) | 1; | |
1663 | } | |
1664 | ||
1665 | /* Store in *MIN, *MAX the smallest and largest numbers representable by | |
1666 | signed integer type TYPE. */ | |
1667 | ||
1668 | void | |
1669 | get_signed_type_minmax (struct type *type, LONGEST *min, LONGEST *max) | |
1670 | { | |
1671 | unsigned int n; | |
1672 | ||
f168693b | 1673 | type = check_typedef (type); |
ed3ef339 DE |
1674 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && !TYPE_UNSIGNED (type)); |
1675 | gdb_assert (TYPE_LENGTH (type) <= sizeof (LONGEST)); | |
1676 | ||
1677 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1678 | *min = -((ULONGEST) 1 << (n - 1)); | |
1679 | *max = ((ULONGEST) 1 << (n - 1)) - 1; | |
1680 | } | |
1681 | ||
ae6ae975 DE |
1682 | /* Internal routine called by TYPE_VPTR_FIELDNO to return the value of |
1683 | cplus_stuff.vptr_fieldno. | |
1684 | ||
1685 | cplus_stuff is initialized to cplus_struct_default which does not | |
1686 | set vptr_fieldno to -1 for portability reasons (IWBN to use C99 | |
1687 | designated initializers). We cope with that here. */ | |
1688 | ||
1689 | int | |
1690 | internal_type_vptr_fieldno (struct type *type) | |
1691 | { | |
f168693b | 1692 | type = check_typedef (type); |
ae6ae975 DE |
1693 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1694 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1695 | if (!HAVE_CPLUS_STRUCT (type)) | |
1696 | return -1; | |
1697 | return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno; | |
1698 | } | |
1699 | ||
1700 | /* Set the value of cplus_stuff.vptr_fieldno. */ | |
1701 | ||
1702 | void | |
1703 | set_type_vptr_fieldno (struct type *type, int fieldno) | |
1704 | { | |
f168693b | 1705 | type = check_typedef (type); |
ae6ae975 DE |
1706 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1707 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1708 | if (!HAVE_CPLUS_STRUCT (type)) | |
1709 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
1710 | TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno = fieldno; | |
1711 | } | |
1712 | ||
1713 | /* Internal routine called by TYPE_VPTR_BASETYPE to return the value of | |
1714 | cplus_stuff.vptr_basetype. */ | |
1715 | ||
1716 | struct type * | |
1717 | internal_type_vptr_basetype (struct type *type) | |
1718 | { | |
f168693b | 1719 | type = check_typedef (type); |
ae6ae975 DE |
1720 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1721 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1722 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF); | |
1723 | return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype; | |
1724 | } | |
1725 | ||
1726 | /* Set the value of cplus_stuff.vptr_basetype. */ | |
1727 | ||
1728 | void | |
1729 | set_type_vptr_basetype (struct type *type, struct type *basetype) | |
1730 | { | |
f168693b | 1731 | type = check_typedef (type); |
ae6ae975 DE |
1732 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1733 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1734 | if (!HAVE_CPLUS_STRUCT (type)) | |
1735 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
1736 | TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype = basetype; | |
1737 | } | |
1738 | ||
81fe8080 DE |
1739 | /* Lookup the vptr basetype/fieldno values for TYPE. |
1740 | If found store vptr_basetype in *BASETYPEP if non-NULL, and return | |
1741 | vptr_fieldno. Also, if found and basetype is from the same objfile, | |
1742 | cache the results. | |
1743 | If not found, return -1 and ignore BASETYPEP. | |
1744 | Callers should be aware that in some cases (for example, | |
c906108c | 1745 | the type or one of its baseclasses is a stub type and we are |
d48cc9dd DJ |
1746 | debugging a .o file, or the compiler uses DWARF-2 and is not GCC), |
1747 | this function will not be able to find the | |
7ba81444 | 1748 | virtual function table pointer, and vptr_fieldno will remain -1 and |
81fe8080 | 1749 | vptr_basetype will remain NULL or incomplete. */ |
c906108c | 1750 | |
81fe8080 DE |
1751 | int |
1752 | get_vptr_fieldno (struct type *type, struct type **basetypep) | |
c906108c | 1753 | { |
f168693b | 1754 | type = check_typedef (type); |
c906108c SS |
1755 | |
1756 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1757 | { | |
1758 | int i; | |
1759 | ||
7ba81444 MS |
1760 | /* We must start at zero in case the first (and only) baseclass |
1761 | is virtual (and hence we cannot share the table pointer). */ | |
c906108c SS |
1762 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1763 | { | |
81fe8080 DE |
1764 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
1765 | int fieldno; | |
1766 | struct type *basetype; | |
1767 | ||
1768 | fieldno = get_vptr_fieldno (baseclass, &basetype); | |
1769 | if (fieldno >= 0) | |
c906108c | 1770 | { |
81fe8080 | 1771 | /* If the type comes from a different objfile we can't cache |
0963b4bd | 1772 | it, it may have a different lifetime. PR 2384 */ |
5ef73790 | 1773 | if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype)) |
81fe8080 | 1774 | { |
ae6ae975 DE |
1775 | set_type_vptr_fieldno (type, fieldno); |
1776 | set_type_vptr_basetype (type, basetype); | |
81fe8080 DE |
1777 | } |
1778 | if (basetypep) | |
1779 | *basetypep = basetype; | |
1780 | return fieldno; | |
c906108c SS |
1781 | } |
1782 | } | |
81fe8080 DE |
1783 | |
1784 | /* Not found. */ | |
1785 | return -1; | |
1786 | } | |
1787 | else | |
1788 | { | |
1789 | if (basetypep) | |
1790 | *basetypep = TYPE_VPTR_BASETYPE (type); | |
1791 | return TYPE_VPTR_FIELDNO (type); | |
c906108c SS |
1792 | } |
1793 | } | |
1794 | ||
44e1a9eb DJ |
1795 | static void |
1796 | stub_noname_complaint (void) | |
1797 | { | |
e2e0b3e5 | 1798 | complaint (&symfile_complaints, _("stub type has NULL name")); |
44e1a9eb DJ |
1799 | } |
1800 | ||
d98b7a16 | 1801 | /* Worker for is_dynamic_type. */ |
80180f79 | 1802 | |
d98b7a16 | 1803 | static int |
ee715b5a | 1804 | is_dynamic_type_internal (struct type *type, int top_level) |
80180f79 SA |
1805 | { |
1806 | type = check_typedef (type); | |
1807 | ||
e771e4be PMR |
1808 | /* We only want to recognize references at the outermost level. */ |
1809 | if (top_level && TYPE_CODE (type) == TYPE_CODE_REF) | |
1810 | type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1811 | ||
3cdcd0ce JB |
1812 | /* Types that have a dynamic TYPE_DATA_LOCATION are considered |
1813 | dynamic, even if the type itself is statically defined. | |
1814 | From a user's point of view, this may appear counter-intuitive; | |
1815 | but it makes sense in this context, because the point is to determine | |
1816 | whether any part of the type needs to be resolved before it can | |
1817 | be exploited. */ | |
1818 | if (TYPE_DATA_LOCATION (type) != NULL | |
1819 | && (TYPE_DATA_LOCATION_KIND (type) == PROP_LOCEXPR | |
1820 | || TYPE_DATA_LOCATION_KIND (type) == PROP_LOCLIST)) | |
1821 | return 1; | |
1822 | ||
3f2f83dd KB |
1823 | if (TYPE_ASSOCIATED_PROP (type)) |
1824 | return 1; | |
1825 | ||
1826 | if (TYPE_ALLOCATED_PROP (type)) | |
1827 | return 1; | |
1828 | ||
80180f79 SA |
1829 | switch (TYPE_CODE (type)) |
1830 | { | |
6f8a3220 | 1831 | case TYPE_CODE_RANGE: |
ddb87a81 JB |
1832 | { |
1833 | /* A range type is obviously dynamic if it has at least one | |
1834 | dynamic bound. But also consider the range type to be | |
1835 | dynamic when its subtype is dynamic, even if the bounds | |
1836 | of the range type are static. It allows us to assume that | |
1837 | the subtype of a static range type is also static. */ | |
1838 | return (!has_static_range (TYPE_RANGE_DATA (type)) | |
ee715b5a | 1839 | || is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0)); |
ddb87a81 | 1840 | } |
6f8a3220 | 1841 | |
80180f79 SA |
1842 | case TYPE_CODE_ARRAY: |
1843 | { | |
80180f79 | 1844 | gdb_assert (TYPE_NFIELDS (type) == 1); |
6f8a3220 JB |
1845 | |
1846 | /* The array is dynamic if either the bounds are dynamic, | |
1847 | or the elements it contains have a dynamic contents. */ | |
ee715b5a | 1848 | if (is_dynamic_type_internal (TYPE_INDEX_TYPE (type), 0)) |
80180f79 | 1849 | return 1; |
ee715b5a | 1850 | return is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0); |
80180f79 | 1851 | } |
012370f6 TT |
1852 | |
1853 | case TYPE_CODE_STRUCT: | |
1854 | case TYPE_CODE_UNION: | |
1855 | { | |
1856 | int i; | |
1857 | ||
1858 | for (i = 0; i < TYPE_NFIELDS (type); ++i) | |
1859 | if (!field_is_static (&TYPE_FIELD (type, i)) | |
ee715b5a | 1860 | && is_dynamic_type_internal (TYPE_FIELD_TYPE (type, i), 0)) |
012370f6 TT |
1861 | return 1; |
1862 | } | |
1863 | break; | |
80180f79 | 1864 | } |
92e2a17f TT |
1865 | |
1866 | return 0; | |
80180f79 SA |
1867 | } |
1868 | ||
d98b7a16 TT |
1869 | /* See gdbtypes.h. */ |
1870 | ||
1871 | int | |
1872 | is_dynamic_type (struct type *type) | |
1873 | { | |
ee715b5a | 1874 | return is_dynamic_type_internal (type, 1); |
d98b7a16 TT |
1875 | } |
1876 | ||
df25ebbd | 1877 | static struct type *resolve_dynamic_type_internal |
ee715b5a | 1878 | (struct type *type, struct property_addr_info *addr_stack, int top_level); |
d98b7a16 | 1879 | |
df25ebbd JB |
1880 | /* Given a dynamic range type (dyn_range_type) and a stack of |
1881 | struct property_addr_info elements, return a static version | |
1882 | of that type. */ | |
d190df30 | 1883 | |
80180f79 | 1884 | static struct type * |
df25ebbd JB |
1885 | resolve_dynamic_range (struct type *dyn_range_type, |
1886 | struct property_addr_info *addr_stack) | |
80180f79 SA |
1887 | { |
1888 | CORE_ADDR value; | |
ddb87a81 | 1889 | struct type *static_range_type, *static_target_type; |
80180f79 | 1890 | const struct dynamic_prop *prop; |
80180f79 SA |
1891 | struct dynamic_prop low_bound, high_bound; |
1892 | ||
6f8a3220 | 1893 | gdb_assert (TYPE_CODE (dyn_range_type) == TYPE_CODE_RANGE); |
80180f79 | 1894 | |
6f8a3220 | 1895 | prop = &TYPE_RANGE_DATA (dyn_range_type)->low; |
63e43d3a | 1896 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
80180f79 SA |
1897 | { |
1898 | low_bound.kind = PROP_CONST; | |
1899 | low_bound.data.const_val = value; | |
1900 | } | |
1901 | else | |
1902 | { | |
1903 | low_bound.kind = PROP_UNDEFINED; | |
1904 | low_bound.data.const_val = 0; | |
1905 | } | |
1906 | ||
6f8a3220 | 1907 | prop = &TYPE_RANGE_DATA (dyn_range_type)->high; |
63e43d3a | 1908 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
80180f79 SA |
1909 | { |
1910 | high_bound.kind = PROP_CONST; | |
1911 | high_bound.data.const_val = value; | |
c451ebe5 | 1912 | |
6f8a3220 | 1913 | if (TYPE_RANGE_DATA (dyn_range_type)->flag_upper_bound_is_count) |
c451ebe5 SA |
1914 | high_bound.data.const_val |
1915 | = low_bound.data.const_val + high_bound.data.const_val - 1; | |
80180f79 SA |
1916 | } |
1917 | else | |
1918 | { | |
1919 | high_bound.kind = PROP_UNDEFINED; | |
1920 | high_bound.data.const_val = 0; | |
1921 | } | |
1922 | ||
ddb87a81 JB |
1923 | static_target_type |
1924 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (dyn_range_type), | |
ee715b5a | 1925 | addr_stack, 0); |
6f8a3220 | 1926 | static_range_type = create_range_type (copy_type (dyn_range_type), |
ddb87a81 | 1927 | static_target_type, |
6f8a3220 JB |
1928 | &low_bound, &high_bound); |
1929 | TYPE_RANGE_DATA (static_range_type)->flag_bound_evaluated = 1; | |
1930 | return static_range_type; | |
1931 | } | |
1932 | ||
1933 | /* Resolves dynamic bound values of an array type TYPE to static ones. | |
df25ebbd JB |
1934 | ADDR_STACK is a stack of struct property_addr_info to be used |
1935 | if needed during the dynamic resolution. */ | |
6f8a3220 JB |
1936 | |
1937 | static struct type * | |
df25ebbd JB |
1938 | resolve_dynamic_array (struct type *type, |
1939 | struct property_addr_info *addr_stack) | |
6f8a3220 JB |
1940 | { |
1941 | CORE_ADDR value; | |
1942 | struct type *elt_type; | |
1943 | struct type *range_type; | |
1944 | struct type *ary_dim; | |
3f2f83dd | 1945 | struct dynamic_prop *prop; |
6f8a3220 JB |
1946 | |
1947 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
1948 | ||
3f2f83dd KB |
1949 | type = copy_type (type); |
1950 | ||
6f8a3220 JB |
1951 | elt_type = type; |
1952 | range_type = check_typedef (TYPE_INDEX_TYPE (elt_type)); | |
df25ebbd | 1953 | range_type = resolve_dynamic_range (range_type, addr_stack); |
6f8a3220 | 1954 | |
3f2f83dd KB |
1955 | /* Resolve allocated/associated here before creating a new array type, which |
1956 | will update the length of the array accordingly. */ | |
1957 | prop = TYPE_ALLOCATED_PROP (type); | |
1958 | if (prop != NULL && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
1959 | { | |
1960 | TYPE_DYN_PROP_ADDR (prop) = value; | |
1961 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
1962 | } | |
1963 | prop = TYPE_ASSOCIATED_PROP (type); | |
1964 | if (prop != NULL && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
1965 | { | |
1966 | TYPE_DYN_PROP_ADDR (prop) = value; | |
1967 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
1968 | } | |
1969 | ||
80180f79 SA |
1970 | ary_dim = check_typedef (TYPE_TARGET_TYPE (elt_type)); |
1971 | ||
1972 | if (ary_dim != NULL && TYPE_CODE (ary_dim) == TYPE_CODE_ARRAY) | |
d0d84780 | 1973 | elt_type = resolve_dynamic_array (ary_dim, addr_stack); |
80180f79 SA |
1974 | else |
1975 | elt_type = TYPE_TARGET_TYPE (type); | |
1976 | ||
3f2f83dd KB |
1977 | return create_array_type_with_stride (type, elt_type, range_type, |
1978 | TYPE_FIELD_BITSIZE (type, 0)); | |
80180f79 SA |
1979 | } |
1980 | ||
012370f6 | 1981 | /* Resolve dynamic bounds of members of the union TYPE to static |
df25ebbd JB |
1982 | bounds. ADDR_STACK is a stack of struct property_addr_info |
1983 | to be used if needed during the dynamic resolution. */ | |
012370f6 TT |
1984 | |
1985 | static struct type * | |
df25ebbd JB |
1986 | resolve_dynamic_union (struct type *type, |
1987 | struct property_addr_info *addr_stack) | |
012370f6 TT |
1988 | { |
1989 | struct type *resolved_type; | |
1990 | int i; | |
1991 | unsigned int max_len = 0; | |
1992 | ||
1993 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_UNION); | |
1994 | ||
1995 | resolved_type = copy_type (type); | |
1996 | TYPE_FIELDS (resolved_type) | |
224c3ddb SM |
1997 | = (struct field *) TYPE_ALLOC (resolved_type, |
1998 | TYPE_NFIELDS (resolved_type) | |
1999 | * sizeof (struct field)); | |
012370f6 TT |
2000 | memcpy (TYPE_FIELDS (resolved_type), |
2001 | TYPE_FIELDS (type), | |
2002 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
2003 | for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i) | |
2004 | { | |
2005 | struct type *t; | |
2006 | ||
2007 | if (field_is_static (&TYPE_FIELD (type, i))) | |
2008 | continue; | |
2009 | ||
d98b7a16 | 2010 | t = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i), |
ee715b5a | 2011 | addr_stack, 0); |
012370f6 TT |
2012 | TYPE_FIELD_TYPE (resolved_type, i) = t; |
2013 | if (TYPE_LENGTH (t) > max_len) | |
2014 | max_len = TYPE_LENGTH (t); | |
2015 | } | |
2016 | ||
2017 | TYPE_LENGTH (resolved_type) = max_len; | |
2018 | return resolved_type; | |
2019 | } | |
2020 | ||
2021 | /* Resolve dynamic bounds of members of the struct TYPE to static | |
df25ebbd JB |
2022 | bounds. ADDR_STACK is a stack of struct property_addr_info to |
2023 | be used if needed during the dynamic resolution. */ | |
012370f6 TT |
2024 | |
2025 | static struct type * | |
df25ebbd JB |
2026 | resolve_dynamic_struct (struct type *type, |
2027 | struct property_addr_info *addr_stack) | |
012370f6 TT |
2028 | { |
2029 | struct type *resolved_type; | |
2030 | int i; | |
6908c509 | 2031 | unsigned resolved_type_bit_length = 0; |
012370f6 TT |
2032 | |
2033 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT); | |
2034 | gdb_assert (TYPE_NFIELDS (type) > 0); | |
2035 | ||
2036 | resolved_type = copy_type (type); | |
2037 | TYPE_FIELDS (resolved_type) | |
224c3ddb SM |
2038 | = (struct field *) TYPE_ALLOC (resolved_type, |
2039 | TYPE_NFIELDS (resolved_type) | |
2040 | * sizeof (struct field)); | |
012370f6 TT |
2041 | memcpy (TYPE_FIELDS (resolved_type), |
2042 | TYPE_FIELDS (type), | |
2043 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
2044 | for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i) | |
2045 | { | |
6908c509 | 2046 | unsigned new_bit_length; |
df25ebbd | 2047 | struct property_addr_info pinfo; |
012370f6 TT |
2048 | |
2049 | if (field_is_static (&TYPE_FIELD (type, i))) | |
2050 | continue; | |
2051 | ||
6908c509 JB |
2052 | /* As we know this field is not a static field, the field's |
2053 | field_loc_kind should be FIELD_LOC_KIND_BITPOS. Verify | |
2054 | this is the case, but only trigger a simple error rather | |
2055 | than an internal error if that fails. While failing | |
2056 | that verification indicates a bug in our code, the error | |
2057 | is not severe enough to suggest to the user he stops | |
2058 | his debugging session because of it. */ | |
df25ebbd | 2059 | if (TYPE_FIELD_LOC_KIND (type, i) != FIELD_LOC_KIND_BITPOS) |
6908c509 JB |
2060 | error (_("Cannot determine struct field location" |
2061 | " (invalid location kind)")); | |
df25ebbd JB |
2062 | |
2063 | pinfo.type = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
c3345124 | 2064 | pinfo.valaddr = addr_stack->valaddr; |
9920b434 BH |
2065 | pinfo.addr |
2066 | = (addr_stack->addr | |
2067 | + (TYPE_FIELD_BITPOS (resolved_type, i) / TARGET_CHAR_BIT)); | |
df25ebbd JB |
2068 | pinfo.next = addr_stack; |
2069 | ||
2070 | TYPE_FIELD_TYPE (resolved_type, i) | |
2071 | = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i), | |
ee715b5a | 2072 | &pinfo, 0); |
df25ebbd JB |
2073 | gdb_assert (TYPE_FIELD_LOC_KIND (resolved_type, i) |
2074 | == FIELD_LOC_KIND_BITPOS); | |
2075 | ||
6908c509 JB |
2076 | new_bit_length = TYPE_FIELD_BITPOS (resolved_type, i); |
2077 | if (TYPE_FIELD_BITSIZE (resolved_type, i) != 0) | |
2078 | new_bit_length += TYPE_FIELD_BITSIZE (resolved_type, i); | |
2079 | else | |
2080 | new_bit_length += (TYPE_LENGTH (TYPE_FIELD_TYPE (resolved_type, i)) | |
2081 | * TARGET_CHAR_BIT); | |
2082 | ||
2083 | /* Normally, we would use the position and size of the last field | |
2084 | to determine the size of the enclosing structure. But GCC seems | |
2085 | to be encoding the position of some fields incorrectly when | |
2086 | the struct contains a dynamic field that is not placed last. | |
2087 | So we compute the struct size based on the field that has | |
2088 | the highest position + size - probably the best we can do. */ | |
2089 | if (new_bit_length > resolved_type_bit_length) | |
2090 | resolved_type_bit_length = new_bit_length; | |
012370f6 TT |
2091 | } |
2092 | ||
9920b434 BH |
2093 | /* The length of a type won't change for fortran, but it does for C and Ada. |
2094 | For fortran the size of dynamic fields might change over time but not the | |
2095 | type length of the structure. If we adapt it, we run into problems | |
2096 | when calculating the element offset for arrays of structs. */ | |
2097 | if (current_language->la_language != language_fortran) | |
2098 | TYPE_LENGTH (resolved_type) | |
2099 | = (resolved_type_bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
6908c509 | 2100 | |
9e195661 PMR |
2101 | /* The Ada language uses this field as a cache for static fixed types: reset |
2102 | it as RESOLVED_TYPE must have its own static fixed type. */ | |
2103 | TYPE_TARGET_TYPE (resolved_type) = NULL; | |
2104 | ||
012370f6 TT |
2105 | return resolved_type; |
2106 | } | |
2107 | ||
d98b7a16 | 2108 | /* Worker for resolved_dynamic_type. */ |
80180f79 | 2109 | |
d98b7a16 | 2110 | static struct type * |
df25ebbd | 2111 | resolve_dynamic_type_internal (struct type *type, |
ee715b5a PMR |
2112 | struct property_addr_info *addr_stack, |
2113 | int top_level) | |
80180f79 SA |
2114 | { |
2115 | struct type *real_type = check_typedef (type); | |
6f8a3220 | 2116 | struct type *resolved_type = type; |
d9823cbb | 2117 | struct dynamic_prop *prop; |
3cdcd0ce | 2118 | CORE_ADDR value; |
80180f79 | 2119 | |
ee715b5a | 2120 | if (!is_dynamic_type_internal (real_type, top_level)) |
80180f79 SA |
2121 | return type; |
2122 | ||
5537b577 | 2123 | if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
6f8a3220 | 2124 | { |
cac9b138 JK |
2125 | resolved_type = copy_type (type); |
2126 | TYPE_TARGET_TYPE (resolved_type) | |
ee715b5a PMR |
2127 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), addr_stack, |
2128 | top_level); | |
5537b577 JK |
2129 | } |
2130 | else | |
2131 | { | |
2132 | /* Before trying to resolve TYPE, make sure it is not a stub. */ | |
2133 | type = real_type; | |
012370f6 | 2134 | |
5537b577 JK |
2135 | switch (TYPE_CODE (type)) |
2136 | { | |
e771e4be PMR |
2137 | case TYPE_CODE_REF: |
2138 | { | |
2139 | struct property_addr_info pinfo; | |
2140 | ||
2141 | pinfo.type = check_typedef (TYPE_TARGET_TYPE (type)); | |
c3345124 JB |
2142 | pinfo.valaddr = NULL; |
2143 | if (addr_stack->valaddr != NULL) | |
2144 | pinfo.addr = extract_typed_address (addr_stack->valaddr, type); | |
2145 | else | |
2146 | pinfo.addr = read_memory_typed_address (addr_stack->addr, type); | |
e771e4be PMR |
2147 | pinfo.next = addr_stack; |
2148 | ||
2149 | resolved_type = copy_type (type); | |
2150 | TYPE_TARGET_TYPE (resolved_type) | |
2151 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), | |
2152 | &pinfo, top_level); | |
2153 | break; | |
2154 | } | |
2155 | ||
5537b577 | 2156 | case TYPE_CODE_ARRAY: |
df25ebbd | 2157 | resolved_type = resolve_dynamic_array (type, addr_stack); |
5537b577 JK |
2158 | break; |
2159 | ||
2160 | case TYPE_CODE_RANGE: | |
df25ebbd | 2161 | resolved_type = resolve_dynamic_range (type, addr_stack); |
5537b577 JK |
2162 | break; |
2163 | ||
2164 | case TYPE_CODE_UNION: | |
df25ebbd | 2165 | resolved_type = resolve_dynamic_union (type, addr_stack); |
5537b577 JK |
2166 | break; |
2167 | ||
2168 | case TYPE_CODE_STRUCT: | |
df25ebbd | 2169 | resolved_type = resolve_dynamic_struct (type, addr_stack); |
5537b577 JK |
2170 | break; |
2171 | } | |
6f8a3220 | 2172 | } |
80180f79 | 2173 | |
3cdcd0ce JB |
2174 | /* Resolve data_location attribute. */ |
2175 | prop = TYPE_DATA_LOCATION (resolved_type); | |
63e43d3a PMR |
2176 | if (prop != NULL |
2177 | && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
3cdcd0ce | 2178 | { |
d9823cbb KB |
2179 | TYPE_DYN_PROP_ADDR (prop) = value; |
2180 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
3cdcd0ce | 2181 | } |
3cdcd0ce | 2182 | |
80180f79 SA |
2183 | return resolved_type; |
2184 | } | |
2185 | ||
d98b7a16 TT |
2186 | /* See gdbtypes.h */ |
2187 | ||
2188 | struct type * | |
c3345124 JB |
2189 | resolve_dynamic_type (struct type *type, const gdb_byte *valaddr, |
2190 | CORE_ADDR addr) | |
d98b7a16 | 2191 | { |
c3345124 JB |
2192 | struct property_addr_info pinfo |
2193 | = {check_typedef (type), valaddr, addr, NULL}; | |
df25ebbd | 2194 | |
ee715b5a | 2195 | return resolve_dynamic_type_internal (type, &pinfo, 1); |
d98b7a16 TT |
2196 | } |
2197 | ||
d9823cbb KB |
2198 | /* See gdbtypes.h */ |
2199 | ||
2200 | struct dynamic_prop * | |
2201 | get_dyn_prop (enum dynamic_prop_node_kind prop_kind, const struct type *type) | |
2202 | { | |
2203 | struct dynamic_prop_list *node = TYPE_DYN_PROP_LIST (type); | |
2204 | ||
2205 | while (node != NULL) | |
2206 | { | |
2207 | if (node->prop_kind == prop_kind) | |
283a9958 | 2208 | return &node->prop; |
d9823cbb KB |
2209 | node = node->next; |
2210 | } | |
2211 | return NULL; | |
2212 | } | |
2213 | ||
2214 | /* See gdbtypes.h */ | |
2215 | ||
2216 | void | |
2217 | add_dyn_prop (enum dynamic_prop_node_kind prop_kind, struct dynamic_prop prop, | |
2218 | struct type *type, struct objfile *objfile) | |
2219 | { | |
2220 | struct dynamic_prop_list *temp; | |
2221 | ||
2222 | gdb_assert (TYPE_OBJFILE_OWNED (type)); | |
2223 | ||
224c3ddb | 2224 | temp = XOBNEW (&objfile->objfile_obstack, struct dynamic_prop_list); |
d9823cbb | 2225 | temp->prop_kind = prop_kind; |
283a9958 | 2226 | temp->prop = prop; |
d9823cbb KB |
2227 | temp->next = TYPE_DYN_PROP_LIST (type); |
2228 | ||
2229 | TYPE_DYN_PROP_LIST (type) = temp; | |
2230 | } | |
2231 | ||
9920b434 BH |
2232 | /* Remove dynamic property from TYPE in case it exists. */ |
2233 | ||
2234 | void | |
2235 | remove_dyn_prop (enum dynamic_prop_node_kind prop_kind, | |
2236 | struct type *type) | |
2237 | { | |
2238 | struct dynamic_prop_list *prev_node, *curr_node; | |
2239 | ||
2240 | curr_node = TYPE_DYN_PROP_LIST (type); | |
2241 | prev_node = NULL; | |
2242 | ||
2243 | while (NULL != curr_node) | |
2244 | { | |
2245 | if (curr_node->prop_kind == prop_kind) | |
2246 | { | |
2247 | /* Update the linked list but don't free anything. | |
2248 | The property was allocated on objstack and it is not known | |
2249 | if we are on top of it. Nevertheless, everything is released | |
2250 | when the complete objstack is freed. */ | |
2251 | if (NULL == prev_node) | |
2252 | TYPE_DYN_PROP_LIST (type) = curr_node->next; | |
2253 | else | |
2254 | prev_node->next = curr_node->next; | |
2255 | ||
2256 | return; | |
2257 | } | |
2258 | ||
2259 | prev_node = curr_node; | |
2260 | curr_node = curr_node->next; | |
2261 | } | |
2262 | } | |
d9823cbb | 2263 | |
92163a10 JK |
2264 | /* Find the real type of TYPE. This function returns the real type, |
2265 | after removing all layers of typedefs, and completing opaque or stub | |
2266 | types. Completion changes the TYPE argument, but stripping of | |
2267 | typedefs does not. | |
2268 | ||
2269 | Instance flags (e.g. const/volatile) are preserved as typedefs are | |
2270 | stripped. If necessary a new qualified form of the underlying type | |
2271 | is created. | |
2272 | ||
2273 | NOTE: This will return a typedef if TYPE_TARGET_TYPE for the typedef has | |
2274 | not been computed and we're either in the middle of reading symbols, or | |
2275 | there was no name for the typedef in the debug info. | |
2276 | ||
9bc118a5 DE |
2277 | NOTE: Lookup of opaque types can throw errors for invalid symbol files. |
2278 | QUITs in the symbol reading code can also throw. | |
2279 | Thus this function can throw an exception. | |
2280 | ||
92163a10 JK |
2281 | If TYPE is a TYPE_CODE_TYPEDEF, its length is updated to the length of |
2282 | the target type. | |
c906108c SS |
2283 | |
2284 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
0963b4bd | 2285 | we can find a full definition in some other file. If so, copy this |
7ba81444 MS |
2286 | definition, so we can use it in future. There used to be a comment |
2287 | (but not any code) that if we don't find a full definition, we'd | |
2288 | set a flag so we don't spend time in the future checking the same | |
2289 | type. That would be a mistake, though--we might load in more | |
92163a10 | 2290 | symbols which contain a full definition for the type. */ |
c906108c SS |
2291 | |
2292 | struct type * | |
a02fd225 | 2293 | check_typedef (struct type *type) |
c906108c SS |
2294 | { |
2295 | struct type *orig_type = type; | |
92163a10 JK |
2296 | /* While we're removing typedefs, we don't want to lose qualifiers. |
2297 | E.g., const/volatile. */ | |
2298 | int instance_flags = TYPE_INSTANCE_FLAGS (type); | |
a02fd225 | 2299 | |
423c0af8 MS |
2300 | gdb_assert (type); |
2301 | ||
c906108c SS |
2302 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
2303 | { | |
2304 | if (!TYPE_TARGET_TYPE (type)) | |
2305 | { | |
0d5cff50 | 2306 | const char *name; |
c906108c SS |
2307 | struct symbol *sym; |
2308 | ||
2309 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 2310 | reading a symtab. Infinite recursion is one danger. */ |
c906108c | 2311 | if (currently_reading_symtab) |
92163a10 | 2312 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
2313 | |
2314 | name = type_name_no_tag (type); | |
7ba81444 MS |
2315 | /* FIXME: shouldn't we separately check the TYPE_NAME and |
2316 | the TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or | |
2317 | VAR_DOMAIN as appropriate? (this code was written before | |
2318 | TYPE_NAME and TYPE_TAG_NAME were separate). */ | |
c906108c SS |
2319 | if (name == NULL) |
2320 | { | |
23136709 | 2321 | stub_noname_complaint (); |
92163a10 | 2322 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2323 | } |
d12307c1 | 2324 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
2325 | if (sym) |
2326 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
7ba81444 | 2327 | else /* TYPE_CODE_UNDEF */ |
e9bb382b | 2328 | TYPE_TARGET_TYPE (type) = alloc_type_arch (get_type_arch (type)); |
c906108c SS |
2329 | } |
2330 | type = TYPE_TARGET_TYPE (type); | |
c906108c | 2331 | |
92163a10 JK |
2332 | /* Preserve the instance flags as we traverse down the typedef chain. |
2333 | ||
2334 | Handling address spaces/classes is nasty, what do we do if there's a | |
2335 | conflict? | |
2336 | E.g., what if an outer typedef marks the type as class_1 and an inner | |
2337 | typedef marks the type as class_2? | |
2338 | This is the wrong place to do such error checking. We leave it to | |
2339 | the code that created the typedef in the first place to flag the | |
2340 | error. We just pick the outer address space (akin to letting the | |
2341 | outer cast in a chain of casting win), instead of assuming | |
2342 | "it can't happen". */ | |
2343 | { | |
2344 | const int ALL_SPACES = (TYPE_INSTANCE_FLAG_CODE_SPACE | |
2345 | | TYPE_INSTANCE_FLAG_DATA_SPACE); | |
2346 | const int ALL_CLASSES = TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL; | |
2347 | int new_instance_flags = TYPE_INSTANCE_FLAGS (type); | |
2348 | ||
2349 | /* Treat code vs data spaces and address classes separately. */ | |
2350 | if ((instance_flags & ALL_SPACES) != 0) | |
2351 | new_instance_flags &= ~ALL_SPACES; | |
2352 | if ((instance_flags & ALL_CLASSES) != 0) | |
2353 | new_instance_flags &= ~ALL_CLASSES; | |
2354 | ||
2355 | instance_flags |= new_instance_flags; | |
2356 | } | |
2357 | } | |
a02fd225 | 2358 | |
7ba81444 MS |
2359 | /* If this is a struct/class/union with no fields, then check |
2360 | whether a full definition exists somewhere else. This is for | |
2361 | systems where a type definition with no fields is issued for such | |
2362 | types, instead of identifying them as stub types in the first | |
2363 | place. */ | |
c5aa993b | 2364 | |
7ba81444 MS |
2365 | if (TYPE_IS_OPAQUE (type) |
2366 | && opaque_type_resolution | |
2367 | && !currently_reading_symtab) | |
c906108c | 2368 | { |
0d5cff50 | 2369 | const char *name = type_name_no_tag (type); |
c5aa993b | 2370 | struct type *newtype; |
d8734c88 | 2371 | |
c906108c SS |
2372 | if (name == NULL) |
2373 | { | |
23136709 | 2374 | stub_noname_complaint (); |
92163a10 | 2375 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
2376 | } |
2377 | newtype = lookup_transparent_type (name); | |
ad766c0a | 2378 | |
c906108c | 2379 | if (newtype) |
ad766c0a | 2380 | { |
7ba81444 MS |
2381 | /* If the resolved type and the stub are in the same |
2382 | objfile, then replace the stub type with the real deal. | |
2383 | But if they're in separate objfiles, leave the stub | |
2384 | alone; we'll just look up the transparent type every time | |
2385 | we call check_typedef. We can't create pointers between | |
2386 | types allocated to different objfiles, since they may | |
2387 | have different lifetimes. Trying to copy NEWTYPE over to | |
2388 | TYPE's objfile is pointless, too, since you'll have to | |
2389 | move over any other types NEWTYPE refers to, which could | |
2390 | be an unbounded amount of stuff. */ | |
ad766c0a | 2391 | if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
92163a10 JK |
2392 | type = make_qualified_type (newtype, |
2393 | TYPE_INSTANCE_FLAGS (type), | |
2394 | type); | |
ad766c0a JB |
2395 | else |
2396 | type = newtype; | |
2397 | } | |
c906108c | 2398 | } |
7ba81444 MS |
2399 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
2400 | types. */ | |
74a9bb82 | 2401 | else if (TYPE_STUB (type) && !currently_reading_symtab) |
c906108c | 2402 | { |
0d5cff50 | 2403 | const char *name = type_name_no_tag (type); |
c906108c | 2404 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
176620f1 | 2405 | TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or VAR_DOMAIN |
7b83ea04 AC |
2406 | as appropriate? (this code was written before TYPE_NAME and |
2407 | TYPE_TAG_NAME were separate). */ | |
c906108c | 2408 | struct symbol *sym; |
d8734c88 | 2409 | |
c906108c SS |
2410 | if (name == NULL) |
2411 | { | |
23136709 | 2412 | stub_noname_complaint (); |
92163a10 | 2413 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2414 | } |
d12307c1 | 2415 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0).symbol; |
c906108c | 2416 | if (sym) |
c26f2453 JB |
2417 | { |
2418 | /* Same as above for opaque types, we can replace the stub | |
92163a10 | 2419 | with the complete type only if they are in the same |
c26f2453 JB |
2420 | objfile. */ |
2421 | if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type)) | |
92163a10 JK |
2422 | type = make_qualified_type (SYMBOL_TYPE (sym), |
2423 | TYPE_INSTANCE_FLAGS (type), | |
2424 | type); | |
c26f2453 JB |
2425 | else |
2426 | type = SYMBOL_TYPE (sym); | |
2427 | } | |
c906108c SS |
2428 | } |
2429 | ||
74a9bb82 | 2430 | if (TYPE_TARGET_STUB (type)) |
c906108c | 2431 | { |
c906108c SS |
2432 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); |
2433 | ||
74a9bb82 | 2434 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
c5aa993b | 2435 | { |
73e2eb35 | 2436 | /* Nothing we can do. */ |
c5aa993b | 2437 | } |
c906108c SS |
2438 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
2439 | { | |
2440 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
876cecd0 | 2441 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
2442 | } |
2443 | } | |
92163a10 JK |
2444 | |
2445 | type = make_qualified_type (type, instance_flags, NULL); | |
2446 | ||
7ba81444 | 2447 | /* Cache TYPE_LENGTH for future use. */ |
c906108c | 2448 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
92163a10 | 2449 | |
c906108c SS |
2450 | return type; |
2451 | } | |
2452 | ||
7ba81444 | 2453 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
48319d1f | 2454 | occurs, silently return a void type. */ |
c91ecb25 | 2455 | |
b9362cc7 | 2456 | static struct type * |
48319d1f | 2457 | safe_parse_type (struct gdbarch *gdbarch, char *p, int length) |
c91ecb25 ND |
2458 | { |
2459 | struct ui_file *saved_gdb_stderr; | |
34365054 | 2460 | struct type *type = NULL; /* Initialize to keep gcc happy. */ |
c91ecb25 | 2461 | |
7ba81444 | 2462 | /* Suppress error messages. */ |
c91ecb25 ND |
2463 | saved_gdb_stderr = gdb_stderr; |
2464 | gdb_stderr = ui_file_new (); | |
2465 | ||
7ba81444 | 2466 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
492d29ea | 2467 | TRY |
8e7b59a5 KS |
2468 | { |
2469 | type = parse_and_eval_type (p, length); | |
2470 | } | |
492d29ea PA |
2471 | CATCH (except, RETURN_MASK_ERROR) |
2472 | { | |
2473 | type = builtin_type (gdbarch)->builtin_void; | |
2474 | } | |
2475 | END_CATCH | |
c91ecb25 | 2476 | |
7ba81444 | 2477 | /* Stop suppressing error messages. */ |
c91ecb25 ND |
2478 | ui_file_delete (gdb_stderr); |
2479 | gdb_stderr = saved_gdb_stderr; | |
2480 | ||
2481 | return type; | |
2482 | } | |
2483 | ||
c906108c SS |
2484 | /* Ugly hack to convert method stubs into method types. |
2485 | ||
7ba81444 MS |
2486 | He ain't kiddin'. This demangles the name of the method into a |
2487 | string including argument types, parses out each argument type, | |
2488 | generates a string casting a zero to that type, evaluates the | |
2489 | string, and stuffs the resulting type into an argtype vector!!! | |
2490 | Then it knows the type of the whole function (including argument | |
2491 | types for overloading), which info used to be in the stab's but was | |
2492 | removed to hack back the space required for them. */ | |
c906108c | 2493 | |
de17c821 | 2494 | static void |
fba45db2 | 2495 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c | 2496 | { |
50810684 | 2497 | struct gdbarch *gdbarch = get_type_arch (type); |
c906108c SS |
2498 | struct fn_field *f; |
2499 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
8de20a37 TT |
2500 | char *demangled_name = gdb_demangle (mangled_name, |
2501 | DMGL_PARAMS | DMGL_ANSI); | |
c906108c SS |
2502 | char *argtypetext, *p; |
2503 | int depth = 0, argcount = 1; | |
ad2f7632 | 2504 | struct field *argtypes; |
c906108c SS |
2505 | struct type *mtype; |
2506 | ||
2507 | /* Make sure we got back a function string that we can use. */ | |
2508 | if (demangled_name) | |
2509 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
2510 | else |
2511 | p = NULL; | |
c906108c SS |
2512 | |
2513 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
2514 | error (_("Internal: Cannot demangle mangled name `%s'."), |
2515 | mangled_name); | |
c906108c SS |
2516 | |
2517 | /* Now, read in the parameters that define this type. */ | |
2518 | p += 1; | |
2519 | argtypetext = p; | |
2520 | while (*p) | |
2521 | { | |
070ad9f0 | 2522 | if (*p == '(' || *p == '<') |
c906108c SS |
2523 | { |
2524 | depth += 1; | |
2525 | } | |
070ad9f0 | 2526 | else if (*p == ')' || *p == '>') |
c906108c SS |
2527 | { |
2528 | depth -= 1; | |
2529 | } | |
2530 | else if (*p == ',' && depth == 0) | |
2531 | { | |
2532 | argcount += 1; | |
2533 | } | |
2534 | ||
2535 | p += 1; | |
2536 | } | |
2537 | ||
ad2f7632 | 2538 | /* If we read one argument and it was ``void'', don't count it. */ |
61012eef | 2539 | if (startswith (argtypetext, "(void)")) |
ad2f7632 | 2540 | argcount -= 1; |
c906108c | 2541 | |
ad2f7632 DJ |
2542 | /* We need one extra slot, for the THIS pointer. */ |
2543 | ||
2544 | argtypes = (struct field *) | |
2545 | TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); | |
c906108c | 2546 | p = argtypetext; |
4a1970e4 DJ |
2547 | |
2548 | /* Add THIS pointer for non-static methods. */ | |
2549 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
2550 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
2551 | argcount = 0; | |
2552 | else | |
2553 | { | |
ad2f7632 | 2554 | argtypes[0].type = lookup_pointer_type (type); |
4a1970e4 DJ |
2555 | argcount = 1; |
2556 | } | |
c906108c | 2557 | |
0963b4bd | 2558 | if (*p != ')') /* () means no args, skip while. */ |
c906108c SS |
2559 | { |
2560 | depth = 0; | |
2561 | while (*p) | |
2562 | { | |
2563 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
2564 | { | |
ad2f7632 DJ |
2565 | /* Avoid parsing of ellipsis, they will be handled below. |
2566 | Also avoid ``void'' as above. */ | |
2567 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 | |
2568 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 2569 | { |
ad2f7632 | 2570 | argtypes[argcount].type = |
48319d1f | 2571 | safe_parse_type (gdbarch, argtypetext, p - argtypetext); |
c906108c SS |
2572 | argcount += 1; |
2573 | } | |
2574 | argtypetext = p + 1; | |
2575 | } | |
2576 | ||
070ad9f0 | 2577 | if (*p == '(' || *p == '<') |
c906108c SS |
2578 | { |
2579 | depth += 1; | |
2580 | } | |
070ad9f0 | 2581 | else if (*p == ')' || *p == '>') |
c906108c SS |
2582 | { |
2583 | depth -= 1; | |
2584 | } | |
2585 | ||
2586 | p += 1; | |
2587 | } | |
2588 | } | |
2589 | ||
c906108c SS |
2590 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
2591 | ||
2592 | /* Now update the old "stub" type into a real type. */ | |
2593 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
09e2d7c7 DE |
2594 | /* MTYPE may currently be a function (TYPE_CODE_FUNC). |
2595 | We want a method (TYPE_CODE_METHOD). */ | |
2596 | smash_to_method_type (mtype, type, TYPE_TARGET_TYPE (mtype), | |
2597 | argtypes, argcount, p[-2] == '.'); | |
876cecd0 | 2598 | TYPE_STUB (mtype) = 0; |
c906108c | 2599 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
ad2f7632 DJ |
2600 | |
2601 | xfree (demangled_name); | |
c906108c SS |
2602 | } |
2603 | ||
7ba81444 MS |
2604 | /* This is the external interface to check_stub_method, above. This |
2605 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
2606 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
2607 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
2608 | correct. | |
de17c821 DJ |
2609 | |
2610 | This function unfortunately can not die until stabs do. */ | |
2611 | ||
2612 | void | |
2613 | check_stub_method_group (struct type *type, int method_id) | |
2614 | { | |
2615 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
2616 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
f710f4fc | 2617 | int j, found_stub = 0; |
de17c821 DJ |
2618 | |
2619 | for (j = 0; j < len; j++) | |
2620 | if (TYPE_FN_FIELD_STUB (f, j)) | |
2621 | { | |
2622 | found_stub = 1; | |
2623 | check_stub_method (type, method_id, j); | |
2624 | } | |
2625 | ||
7ba81444 MS |
2626 | /* GNU v3 methods with incorrect names were corrected when we read |
2627 | in type information, because it was cheaper to do it then. The | |
2628 | only GNU v2 methods with incorrect method names are operators and | |
2629 | destructors; destructors were also corrected when we read in type | |
2630 | information. | |
de17c821 DJ |
2631 | |
2632 | Therefore the only thing we need to handle here are v2 operator | |
2633 | names. */ | |
61012eef | 2634 | if (found_stub && !startswith (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z")) |
de17c821 DJ |
2635 | { |
2636 | int ret; | |
2637 | char dem_opname[256]; | |
2638 | ||
7ba81444 MS |
2639 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
2640 | method_id), | |
de17c821 DJ |
2641 | dem_opname, DMGL_ANSI); |
2642 | if (!ret) | |
7ba81444 MS |
2643 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
2644 | method_id), | |
de17c821 DJ |
2645 | dem_opname, 0); |
2646 | if (ret) | |
2647 | TYPE_FN_FIELDLIST_NAME (type, method_id) = xstrdup (dem_opname); | |
2648 | } | |
2649 | } | |
2650 | ||
9655fd1a JK |
2651 | /* Ensure it is in .rodata (if available) by workarounding GCC PR 44690. */ |
2652 | const struct cplus_struct_type cplus_struct_default = { }; | |
c906108c SS |
2653 | |
2654 | void | |
fba45db2 | 2655 | allocate_cplus_struct_type (struct type *type) |
c906108c | 2656 | { |
b4ba55a1 JB |
2657 | if (HAVE_CPLUS_STRUCT (type)) |
2658 | /* Structure was already allocated. Nothing more to do. */ | |
2659 | return; | |
2660 | ||
2661 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF; | |
2662 | TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
2663 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
2664 | *(TYPE_RAW_CPLUS_SPECIFIC (type)) = cplus_struct_default; | |
ae6ae975 | 2665 | set_type_vptr_fieldno (type, -1); |
c906108c SS |
2666 | } |
2667 | ||
b4ba55a1 JB |
2668 | const struct gnat_aux_type gnat_aux_default = |
2669 | { NULL }; | |
2670 | ||
2671 | /* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF, | |
2672 | and allocate the associated gnat-specific data. The gnat-specific | |
2673 | data is also initialized to gnat_aux_default. */ | |
5212577a | 2674 | |
b4ba55a1 JB |
2675 | void |
2676 | allocate_gnat_aux_type (struct type *type) | |
2677 | { | |
2678 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF; | |
2679 | TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) | |
2680 | TYPE_ALLOC (type, sizeof (struct gnat_aux_type)); | |
2681 | *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default; | |
2682 | } | |
2683 | ||
c906108c SS |
2684 | /* Helper function to initialize the standard scalar types. |
2685 | ||
86f62fd7 TT |
2686 | If NAME is non-NULL, then it is used to initialize the type name. |
2687 | Note that NAME is not copied; it is required to have a lifetime at | |
2688 | least as long as OBJFILE. */ | |
c906108c SS |
2689 | |
2690 | struct type * | |
7ba81444 | 2691 | init_type (enum type_code code, int length, int flags, |
748e18ae | 2692 | const char *name, struct objfile *objfile) |
c906108c | 2693 | { |
52f0bd74 | 2694 | struct type *type; |
c906108c SS |
2695 | |
2696 | type = alloc_type (objfile); | |
2697 | TYPE_CODE (type) = code; | |
2698 | TYPE_LENGTH (type) = length; | |
876cecd0 TT |
2699 | |
2700 | gdb_assert (!(flags & (TYPE_FLAG_MIN - 1))); | |
2701 | if (flags & TYPE_FLAG_UNSIGNED) | |
2702 | TYPE_UNSIGNED (type) = 1; | |
2703 | if (flags & TYPE_FLAG_NOSIGN) | |
2704 | TYPE_NOSIGN (type) = 1; | |
2705 | if (flags & TYPE_FLAG_STUB) | |
2706 | TYPE_STUB (type) = 1; | |
2707 | if (flags & TYPE_FLAG_TARGET_STUB) | |
2708 | TYPE_TARGET_STUB (type) = 1; | |
2709 | if (flags & TYPE_FLAG_STATIC) | |
2710 | TYPE_STATIC (type) = 1; | |
2711 | if (flags & TYPE_FLAG_PROTOTYPED) | |
2712 | TYPE_PROTOTYPED (type) = 1; | |
2713 | if (flags & TYPE_FLAG_INCOMPLETE) | |
2714 | TYPE_INCOMPLETE (type) = 1; | |
2715 | if (flags & TYPE_FLAG_VARARGS) | |
2716 | TYPE_VARARGS (type) = 1; | |
2717 | if (flags & TYPE_FLAG_VECTOR) | |
2718 | TYPE_VECTOR (type) = 1; | |
2719 | if (flags & TYPE_FLAG_STUB_SUPPORTED) | |
2720 | TYPE_STUB_SUPPORTED (type) = 1; | |
876cecd0 TT |
2721 | if (flags & TYPE_FLAG_FIXED_INSTANCE) |
2722 | TYPE_FIXED_INSTANCE (type) = 1; | |
0875794a JK |
2723 | if (flags & TYPE_FLAG_GNU_IFUNC) |
2724 | TYPE_GNU_IFUNC (type) = 1; | |
876cecd0 | 2725 | |
86f62fd7 | 2726 | TYPE_NAME (type) = name; |
c906108c SS |
2727 | |
2728 | /* C++ fancies. */ | |
2729 | ||
973ccf8b | 2730 | if (name && strcmp (name, "char") == 0) |
876cecd0 | 2731 | TYPE_NOSIGN (type) = 1; |
973ccf8b | 2732 | |
b4ba55a1 | 2733 | switch (code) |
c906108c | 2734 | { |
b4ba55a1 JB |
2735 | case TYPE_CODE_STRUCT: |
2736 | case TYPE_CODE_UNION: | |
2737 | case TYPE_CODE_NAMESPACE: | |
2738 | INIT_CPLUS_SPECIFIC (type); | |
2739 | break; | |
2740 | case TYPE_CODE_FLT: | |
2741 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT; | |
2742 | break; | |
2743 | case TYPE_CODE_FUNC: | |
b6cdc2c1 | 2744 | INIT_FUNC_SPECIFIC (type); |
b4ba55a1 | 2745 | break; |
c906108c | 2746 | } |
c16abbde | 2747 | return type; |
c906108c | 2748 | } |
5212577a DE |
2749 | \f |
2750 | /* Queries on types. */ | |
c906108c | 2751 | |
c906108c | 2752 | int |
fba45db2 | 2753 | can_dereference (struct type *t) |
c906108c | 2754 | { |
7ba81444 MS |
2755 | /* FIXME: Should we return true for references as well as |
2756 | pointers? */ | |
f168693b | 2757 | t = check_typedef (t); |
c906108c SS |
2758 | return |
2759 | (t != NULL | |
2760 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
2761 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
2762 | } | |
2763 | ||
adf40b2e | 2764 | int |
fba45db2 | 2765 | is_integral_type (struct type *t) |
adf40b2e | 2766 | { |
f168693b | 2767 | t = check_typedef (t); |
adf40b2e JM |
2768 | return |
2769 | ((t != NULL) | |
d4f3574e SS |
2770 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
2771 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
4f2aea11 | 2772 | || (TYPE_CODE (t) == TYPE_CODE_FLAGS) |
d4f3574e SS |
2773 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) |
2774 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
2775 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
2776 | } |
2777 | ||
e09342b5 TJB |
2778 | /* Return true if TYPE is scalar. */ |
2779 | ||
220475ed | 2780 | int |
e09342b5 TJB |
2781 | is_scalar_type (struct type *type) |
2782 | { | |
f168693b | 2783 | type = check_typedef (type); |
e09342b5 TJB |
2784 | |
2785 | switch (TYPE_CODE (type)) | |
2786 | { | |
2787 | case TYPE_CODE_ARRAY: | |
2788 | case TYPE_CODE_STRUCT: | |
2789 | case TYPE_CODE_UNION: | |
2790 | case TYPE_CODE_SET: | |
2791 | case TYPE_CODE_STRING: | |
e09342b5 TJB |
2792 | return 0; |
2793 | default: | |
2794 | return 1; | |
2795 | } | |
2796 | } | |
2797 | ||
2798 | /* Return true if T is scalar, or a composite type which in practice has | |
90e4670f TJB |
2799 | the memory layout of a scalar type. E.g., an array or struct with only |
2800 | one scalar element inside it, or a union with only scalar elements. */ | |
e09342b5 TJB |
2801 | |
2802 | int | |
2803 | is_scalar_type_recursive (struct type *t) | |
2804 | { | |
f168693b | 2805 | t = check_typedef (t); |
e09342b5 TJB |
2806 | |
2807 | if (is_scalar_type (t)) | |
2808 | return 1; | |
2809 | /* Are we dealing with an array or string of known dimensions? */ | |
2810 | else if ((TYPE_CODE (t) == TYPE_CODE_ARRAY | |
2811 | || TYPE_CODE (t) == TYPE_CODE_STRING) && TYPE_NFIELDS (t) == 1 | |
2812 | && TYPE_CODE (TYPE_INDEX_TYPE (t)) == TYPE_CODE_RANGE) | |
2813 | { | |
2814 | LONGEST low_bound, high_bound; | |
2815 | struct type *elt_type = check_typedef (TYPE_TARGET_TYPE (t)); | |
2816 | ||
2817 | get_discrete_bounds (TYPE_INDEX_TYPE (t), &low_bound, &high_bound); | |
2818 | ||
2819 | return high_bound == low_bound && is_scalar_type_recursive (elt_type); | |
2820 | } | |
2821 | /* Are we dealing with a struct with one element? */ | |
2822 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT && TYPE_NFIELDS (t) == 1) | |
2823 | return is_scalar_type_recursive (TYPE_FIELD_TYPE (t, 0)); | |
2824 | else if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
2825 | { | |
2826 | int i, n = TYPE_NFIELDS (t); | |
2827 | ||
2828 | /* If all elements of the union are scalar, then the union is scalar. */ | |
2829 | for (i = 0; i < n; i++) | |
2830 | if (!is_scalar_type_recursive (TYPE_FIELD_TYPE (t, i))) | |
2831 | return 0; | |
2832 | ||
2833 | return 1; | |
2834 | } | |
2835 | ||
2836 | return 0; | |
2837 | } | |
2838 | ||
6c659fc2 SC |
2839 | /* Return true is T is a class or a union. False otherwise. */ |
2840 | ||
2841 | int | |
2842 | class_or_union_p (const struct type *t) | |
2843 | { | |
2844 | return (TYPE_CODE (t) == TYPE_CODE_STRUCT | |
2845 | || TYPE_CODE (t) == TYPE_CODE_UNION); | |
2846 | } | |
2847 | ||
4e8f195d TT |
2848 | /* A helper function which returns true if types A and B represent the |
2849 | "same" class type. This is true if the types have the same main | |
2850 | type, or the same name. */ | |
2851 | ||
2852 | int | |
2853 | class_types_same_p (const struct type *a, const struct type *b) | |
2854 | { | |
2855 | return (TYPE_MAIN_TYPE (a) == TYPE_MAIN_TYPE (b) | |
2856 | || (TYPE_NAME (a) && TYPE_NAME (b) | |
2857 | && !strcmp (TYPE_NAME (a), TYPE_NAME (b)))); | |
2858 | } | |
2859 | ||
a9d5ef47 SW |
2860 | /* If BASE is an ancestor of DCLASS return the distance between them. |
2861 | otherwise return -1; | |
2862 | eg: | |
2863 | ||
2864 | class A {}; | |
2865 | class B: public A {}; | |
2866 | class C: public B {}; | |
2867 | class D: C {}; | |
2868 | ||
2869 | distance_to_ancestor (A, A, 0) = 0 | |
2870 | distance_to_ancestor (A, B, 0) = 1 | |
2871 | distance_to_ancestor (A, C, 0) = 2 | |
2872 | distance_to_ancestor (A, D, 0) = 3 | |
2873 | ||
2874 | If PUBLIC is 1 then only public ancestors are considered, | |
2875 | and the function returns the distance only if BASE is a public ancestor | |
2876 | of DCLASS. | |
2877 | Eg: | |
2878 | ||
0963b4bd | 2879 | distance_to_ancestor (A, D, 1) = -1. */ |
c906108c | 2880 | |
0526b37a | 2881 | static int |
fe978cb0 | 2882 | distance_to_ancestor (struct type *base, struct type *dclass, int is_public) |
c906108c SS |
2883 | { |
2884 | int i; | |
a9d5ef47 | 2885 | int d; |
c5aa993b | 2886 | |
f168693b SM |
2887 | base = check_typedef (base); |
2888 | dclass = check_typedef (dclass); | |
c906108c | 2889 | |
4e8f195d | 2890 | if (class_types_same_p (base, dclass)) |
a9d5ef47 | 2891 | return 0; |
c906108c SS |
2892 | |
2893 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
4e8f195d | 2894 | { |
fe978cb0 | 2895 | if (is_public && ! BASETYPE_VIA_PUBLIC (dclass, i)) |
0526b37a SW |
2896 | continue; |
2897 | ||
fe978cb0 | 2898 | d = distance_to_ancestor (base, TYPE_BASECLASS (dclass, i), is_public); |
a9d5ef47 SW |
2899 | if (d >= 0) |
2900 | return 1 + d; | |
4e8f195d | 2901 | } |
c906108c | 2902 | |
a9d5ef47 | 2903 | return -1; |
c906108c | 2904 | } |
4e8f195d | 2905 | |
0526b37a SW |
2906 | /* Check whether BASE is an ancestor or base class or DCLASS |
2907 | Return 1 if so, and 0 if not. | |
2908 | Note: If BASE and DCLASS are of the same type, this function | |
2909 | will return 1. So for some class A, is_ancestor (A, A) will | |
2910 | return 1. */ | |
2911 | ||
2912 | int | |
2913 | is_ancestor (struct type *base, struct type *dclass) | |
2914 | { | |
a9d5ef47 | 2915 | return distance_to_ancestor (base, dclass, 0) >= 0; |
0526b37a SW |
2916 | } |
2917 | ||
4e8f195d TT |
2918 | /* Like is_ancestor, but only returns true when BASE is a public |
2919 | ancestor of DCLASS. */ | |
2920 | ||
2921 | int | |
2922 | is_public_ancestor (struct type *base, struct type *dclass) | |
2923 | { | |
a9d5ef47 | 2924 | return distance_to_ancestor (base, dclass, 1) >= 0; |
4e8f195d TT |
2925 | } |
2926 | ||
2927 | /* A helper function for is_unique_ancestor. */ | |
2928 | ||
2929 | static int | |
2930 | is_unique_ancestor_worker (struct type *base, struct type *dclass, | |
2931 | int *offset, | |
8af8e3bc PA |
2932 | const gdb_byte *valaddr, int embedded_offset, |
2933 | CORE_ADDR address, struct value *val) | |
4e8f195d TT |
2934 | { |
2935 | int i, count = 0; | |
2936 | ||
f168693b SM |
2937 | base = check_typedef (base); |
2938 | dclass = check_typedef (dclass); | |
4e8f195d TT |
2939 | |
2940 | for (i = 0; i < TYPE_N_BASECLASSES (dclass) && count < 2; ++i) | |
2941 | { | |
8af8e3bc PA |
2942 | struct type *iter; |
2943 | int this_offset; | |
4e8f195d | 2944 | |
8af8e3bc PA |
2945 | iter = check_typedef (TYPE_BASECLASS (dclass, i)); |
2946 | ||
2947 | this_offset = baseclass_offset (dclass, i, valaddr, embedded_offset, | |
2948 | address, val); | |
4e8f195d TT |
2949 | |
2950 | if (class_types_same_p (base, iter)) | |
2951 | { | |
2952 | /* If this is the first subclass, set *OFFSET and set count | |
2953 | to 1. Otherwise, if this is at the same offset as | |
2954 | previous instances, do nothing. Otherwise, increment | |
2955 | count. */ | |
2956 | if (*offset == -1) | |
2957 | { | |
2958 | *offset = this_offset; | |
2959 | count = 1; | |
2960 | } | |
2961 | else if (this_offset == *offset) | |
2962 | { | |
2963 | /* Nothing. */ | |
2964 | } | |
2965 | else | |
2966 | ++count; | |
2967 | } | |
2968 | else | |
2969 | count += is_unique_ancestor_worker (base, iter, offset, | |
8af8e3bc PA |
2970 | valaddr, |
2971 | embedded_offset + this_offset, | |
2972 | address, val); | |
4e8f195d TT |
2973 | } |
2974 | ||
2975 | return count; | |
2976 | } | |
2977 | ||
2978 | /* Like is_ancestor, but only returns true if BASE is a unique base | |
2979 | class of the type of VAL. */ | |
2980 | ||
2981 | int | |
2982 | is_unique_ancestor (struct type *base, struct value *val) | |
2983 | { | |
2984 | int offset = -1; | |
2985 | ||
2986 | return is_unique_ancestor_worker (base, value_type (val), &offset, | |
8af8e3bc PA |
2987 | value_contents_for_printing (val), |
2988 | value_embedded_offset (val), | |
2989 | value_address (val), val) == 1; | |
4e8f195d TT |
2990 | } |
2991 | ||
c906108c | 2992 | \f |
5212577a | 2993 | /* Overload resolution. */ |
c906108c | 2994 | |
6403aeea SW |
2995 | /* Return the sum of the rank of A with the rank of B. */ |
2996 | ||
2997 | struct rank | |
2998 | sum_ranks (struct rank a, struct rank b) | |
2999 | { | |
3000 | struct rank c; | |
3001 | c.rank = a.rank + b.rank; | |
a9d5ef47 | 3002 | c.subrank = a.subrank + b.subrank; |
6403aeea SW |
3003 | return c; |
3004 | } | |
3005 | ||
3006 | /* Compare rank A and B and return: | |
3007 | 0 if a = b | |
3008 | 1 if a is better than b | |
3009 | -1 if b is better than a. */ | |
3010 | ||
3011 | int | |
3012 | compare_ranks (struct rank a, struct rank b) | |
3013 | { | |
3014 | if (a.rank == b.rank) | |
a9d5ef47 SW |
3015 | { |
3016 | if (a.subrank == b.subrank) | |
3017 | return 0; | |
3018 | if (a.subrank < b.subrank) | |
3019 | return 1; | |
3020 | if (a.subrank > b.subrank) | |
3021 | return -1; | |
3022 | } | |
6403aeea SW |
3023 | |
3024 | if (a.rank < b.rank) | |
3025 | return 1; | |
3026 | ||
0963b4bd | 3027 | /* a.rank > b.rank */ |
6403aeea SW |
3028 | return -1; |
3029 | } | |
c5aa993b | 3030 | |
0963b4bd | 3031 | /* Functions for overload resolution begin here. */ |
c906108c SS |
3032 | |
3033 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
3034 | 0 => A and B are identical |
3035 | 1 => A and B are incomparable | |
3036 | 2 => A is better than B | |
3037 | 3 => A is worse than B */ | |
c906108c SS |
3038 | |
3039 | int | |
fba45db2 | 3040 | compare_badness (struct badness_vector *a, struct badness_vector *b) |
c906108c SS |
3041 | { |
3042 | int i; | |
3043 | int tmp; | |
c5aa993b JM |
3044 | short found_pos = 0; /* any positives in c? */ |
3045 | short found_neg = 0; /* any negatives in c? */ | |
3046 | ||
3047 | /* differing lengths => incomparable */ | |
c906108c SS |
3048 | if (a->length != b->length) |
3049 | return 1; | |
3050 | ||
c5aa993b JM |
3051 | /* Subtract b from a */ |
3052 | for (i = 0; i < a->length; i++) | |
c906108c | 3053 | { |
6403aeea | 3054 | tmp = compare_ranks (b->rank[i], a->rank[i]); |
c906108c | 3055 | if (tmp > 0) |
c5aa993b | 3056 | found_pos = 1; |
c906108c | 3057 | else if (tmp < 0) |
c5aa993b | 3058 | found_neg = 1; |
c906108c SS |
3059 | } |
3060 | ||
3061 | if (found_pos) | |
3062 | { | |
3063 | if (found_neg) | |
c5aa993b | 3064 | return 1; /* incomparable */ |
c906108c | 3065 | else |
c5aa993b | 3066 | return 3; /* A > B */ |
c906108c | 3067 | } |
c5aa993b JM |
3068 | else |
3069 | /* no positives */ | |
c906108c SS |
3070 | { |
3071 | if (found_neg) | |
c5aa993b | 3072 | return 2; /* A < B */ |
c906108c | 3073 | else |
c5aa993b | 3074 | return 0; /* A == B */ |
c906108c SS |
3075 | } |
3076 | } | |
3077 | ||
7ba81444 MS |
3078 | /* Rank a function by comparing its parameter types (PARMS, length |
3079 | NPARMS), to the types of an argument list (ARGS, length NARGS). | |
3080 | Return a pointer to a badness vector. This has NARGS + 1 | |
3081 | entries. */ | |
c906108c SS |
3082 | |
3083 | struct badness_vector * | |
7ba81444 | 3084 | rank_function (struct type **parms, int nparms, |
da096638 | 3085 | struct value **args, int nargs) |
c906108c SS |
3086 | { |
3087 | int i; | |
8d749320 | 3088 | struct badness_vector *bv = XNEW (struct badness_vector); |
c906108c SS |
3089 | int min_len = nparms < nargs ? nparms : nargs; |
3090 | ||
0963b4bd | 3091 | bv->length = nargs + 1; /* add 1 for the length-match rank. */ |
c4e54771 | 3092 | bv->rank = XNEWVEC (struct rank, nargs + 1); |
c906108c SS |
3093 | |
3094 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 3095 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 3096 | |
c906108c | 3097 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
3098 | arguments and ellipsis parameter lists, we should consider those |
3099 | and rank the length-match more finely. */ | |
c906108c | 3100 | |
6403aeea SW |
3101 | LENGTH_MATCH (bv) = (nargs != nparms) |
3102 | ? LENGTH_MISMATCH_BADNESS | |
3103 | : EXACT_MATCH_BADNESS; | |
c906108c | 3104 | |
0963b4bd | 3105 | /* Now rank all the parameters of the candidate function. */ |
74cc24b0 | 3106 | for (i = 1; i <= min_len; i++) |
da096638 KS |
3107 | bv->rank[i] = rank_one_type (parms[i - 1], value_type (args[i - 1]), |
3108 | args[i - 1]); | |
c906108c | 3109 | |
0963b4bd | 3110 | /* If more arguments than parameters, add dummy entries. */ |
c5aa993b | 3111 | for (i = min_len + 1; i <= nargs; i++) |
c906108c SS |
3112 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
3113 | ||
3114 | return bv; | |
3115 | } | |
3116 | ||
973ccf8b DJ |
3117 | /* Compare the names of two integer types, assuming that any sign |
3118 | qualifiers have been checked already. We do it this way because | |
3119 | there may be an "int" in the name of one of the types. */ | |
3120 | ||
3121 | static int | |
3122 | integer_types_same_name_p (const char *first, const char *second) | |
3123 | { | |
3124 | int first_p, second_p; | |
3125 | ||
7ba81444 MS |
3126 | /* If both are shorts, return 1; if neither is a short, keep |
3127 | checking. */ | |
973ccf8b DJ |
3128 | first_p = (strstr (first, "short") != NULL); |
3129 | second_p = (strstr (second, "short") != NULL); | |
3130 | if (first_p && second_p) | |
3131 | return 1; | |
3132 | if (first_p || second_p) | |
3133 | return 0; | |
3134 | ||
3135 | /* Likewise for long. */ | |
3136 | first_p = (strstr (first, "long") != NULL); | |
3137 | second_p = (strstr (second, "long") != NULL); | |
3138 | if (first_p && second_p) | |
3139 | return 1; | |
3140 | if (first_p || second_p) | |
3141 | return 0; | |
3142 | ||
3143 | /* Likewise for char. */ | |
3144 | first_p = (strstr (first, "char") != NULL); | |
3145 | second_p = (strstr (second, "char") != NULL); | |
3146 | if (first_p && second_p) | |
3147 | return 1; | |
3148 | if (first_p || second_p) | |
3149 | return 0; | |
3150 | ||
3151 | /* They must both be ints. */ | |
3152 | return 1; | |
3153 | } | |
3154 | ||
7062b0a0 SW |
3155 | /* Compares type A to type B returns 1 if the represent the same type |
3156 | 0 otherwise. */ | |
3157 | ||
bd69fc68 | 3158 | int |
7062b0a0 SW |
3159 | types_equal (struct type *a, struct type *b) |
3160 | { | |
3161 | /* Identical type pointers. */ | |
3162 | /* However, this still doesn't catch all cases of same type for b | |
3163 | and a. The reason is that builtin types are different from | |
3164 | the same ones constructed from the object. */ | |
3165 | if (a == b) | |
3166 | return 1; | |
3167 | ||
3168 | /* Resolve typedefs */ | |
3169 | if (TYPE_CODE (a) == TYPE_CODE_TYPEDEF) | |
3170 | a = check_typedef (a); | |
3171 | if (TYPE_CODE (b) == TYPE_CODE_TYPEDEF) | |
3172 | b = check_typedef (b); | |
3173 | ||
3174 | /* If after resolving typedefs a and b are not of the same type | |
3175 | code then they are not equal. */ | |
3176 | if (TYPE_CODE (a) != TYPE_CODE (b)) | |
3177 | return 0; | |
3178 | ||
3179 | /* If a and b are both pointers types or both reference types then | |
3180 | they are equal of the same type iff the objects they refer to are | |
3181 | of the same type. */ | |
3182 | if (TYPE_CODE (a) == TYPE_CODE_PTR | |
3183 | || TYPE_CODE (a) == TYPE_CODE_REF) | |
3184 | return types_equal (TYPE_TARGET_TYPE (a), | |
3185 | TYPE_TARGET_TYPE (b)); | |
3186 | ||
0963b4bd | 3187 | /* Well, damnit, if the names are exactly the same, I'll say they |
7062b0a0 SW |
3188 | are exactly the same. This happens when we generate method |
3189 | stubs. The types won't point to the same address, but they | |
0963b4bd | 3190 | really are the same. */ |
7062b0a0 SW |
3191 | |
3192 | if (TYPE_NAME (a) && TYPE_NAME (b) | |
3193 | && strcmp (TYPE_NAME (a), TYPE_NAME (b)) == 0) | |
3194 | return 1; | |
3195 | ||
3196 | /* Check if identical after resolving typedefs. */ | |
3197 | if (a == b) | |
3198 | return 1; | |
3199 | ||
9ce98649 TT |
3200 | /* Two function types are equal if their argument and return types |
3201 | are equal. */ | |
3202 | if (TYPE_CODE (a) == TYPE_CODE_FUNC) | |
3203 | { | |
3204 | int i; | |
3205 | ||
3206 | if (TYPE_NFIELDS (a) != TYPE_NFIELDS (b)) | |
3207 | return 0; | |
3208 | ||
3209 | if (!types_equal (TYPE_TARGET_TYPE (a), TYPE_TARGET_TYPE (b))) | |
3210 | return 0; | |
3211 | ||
3212 | for (i = 0; i < TYPE_NFIELDS (a); ++i) | |
3213 | if (!types_equal (TYPE_FIELD_TYPE (a, i), TYPE_FIELD_TYPE (b, i))) | |
3214 | return 0; | |
3215 | ||
3216 | return 1; | |
3217 | } | |
3218 | ||
7062b0a0 SW |
3219 | return 0; |
3220 | } | |
ca092b61 DE |
3221 | \f |
3222 | /* Deep comparison of types. */ | |
3223 | ||
3224 | /* An entry in the type-equality bcache. */ | |
3225 | ||
3226 | typedef struct type_equality_entry | |
3227 | { | |
3228 | struct type *type1, *type2; | |
3229 | } type_equality_entry_d; | |
3230 | ||
3231 | DEF_VEC_O (type_equality_entry_d); | |
3232 | ||
3233 | /* A helper function to compare two strings. Returns 1 if they are | |
3234 | the same, 0 otherwise. Handles NULLs properly. */ | |
3235 | ||
3236 | static int | |
3237 | compare_maybe_null_strings (const char *s, const char *t) | |
3238 | { | |
3239 | if (s == NULL && t != NULL) | |
3240 | return 0; | |
3241 | else if (s != NULL && t == NULL) | |
3242 | return 0; | |
3243 | else if (s == NULL && t== NULL) | |
3244 | return 1; | |
3245 | return strcmp (s, t) == 0; | |
3246 | } | |
3247 | ||
3248 | /* A helper function for check_types_worklist that checks two types for | |
3249 | "deep" equality. Returns non-zero if the types are considered the | |
3250 | same, zero otherwise. */ | |
3251 | ||
3252 | static int | |
3253 | check_types_equal (struct type *type1, struct type *type2, | |
3254 | VEC (type_equality_entry_d) **worklist) | |
3255 | { | |
f168693b SM |
3256 | type1 = check_typedef (type1); |
3257 | type2 = check_typedef (type2); | |
ca092b61 DE |
3258 | |
3259 | if (type1 == type2) | |
3260 | return 1; | |
3261 | ||
3262 | if (TYPE_CODE (type1) != TYPE_CODE (type2) | |
3263 | || TYPE_LENGTH (type1) != TYPE_LENGTH (type2) | |
3264 | || TYPE_UNSIGNED (type1) != TYPE_UNSIGNED (type2) | |
3265 | || TYPE_NOSIGN (type1) != TYPE_NOSIGN (type2) | |
3266 | || TYPE_VARARGS (type1) != TYPE_VARARGS (type2) | |
3267 | || TYPE_VECTOR (type1) != TYPE_VECTOR (type2) | |
3268 | || TYPE_NOTTEXT (type1) != TYPE_NOTTEXT (type2) | |
3269 | || TYPE_INSTANCE_FLAGS (type1) != TYPE_INSTANCE_FLAGS (type2) | |
3270 | || TYPE_NFIELDS (type1) != TYPE_NFIELDS (type2)) | |
3271 | return 0; | |
3272 | ||
3273 | if (!compare_maybe_null_strings (TYPE_TAG_NAME (type1), | |
3274 | TYPE_TAG_NAME (type2))) | |
3275 | return 0; | |
3276 | if (!compare_maybe_null_strings (TYPE_NAME (type1), TYPE_NAME (type2))) | |
3277 | return 0; | |
3278 | ||
3279 | if (TYPE_CODE (type1) == TYPE_CODE_RANGE) | |
3280 | { | |
3281 | if (memcmp (TYPE_RANGE_DATA (type1), TYPE_RANGE_DATA (type2), | |
3282 | sizeof (*TYPE_RANGE_DATA (type1))) != 0) | |
3283 | return 0; | |
3284 | } | |
3285 | else | |
3286 | { | |
3287 | int i; | |
3288 | ||
3289 | for (i = 0; i < TYPE_NFIELDS (type1); ++i) | |
3290 | { | |
3291 | const struct field *field1 = &TYPE_FIELD (type1, i); | |
3292 | const struct field *field2 = &TYPE_FIELD (type2, i); | |
3293 | struct type_equality_entry entry; | |
3294 | ||
3295 | if (FIELD_ARTIFICIAL (*field1) != FIELD_ARTIFICIAL (*field2) | |
3296 | || FIELD_BITSIZE (*field1) != FIELD_BITSIZE (*field2) | |
3297 | || FIELD_LOC_KIND (*field1) != FIELD_LOC_KIND (*field2)) | |
3298 | return 0; | |
3299 | if (!compare_maybe_null_strings (FIELD_NAME (*field1), | |
3300 | FIELD_NAME (*field2))) | |
3301 | return 0; | |
3302 | switch (FIELD_LOC_KIND (*field1)) | |
3303 | { | |
3304 | case FIELD_LOC_KIND_BITPOS: | |
3305 | if (FIELD_BITPOS (*field1) != FIELD_BITPOS (*field2)) | |
3306 | return 0; | |
3307 | break; | |
3308 | case FIELD_LOC_KIND_ENUMVAL: | |
3309 | if (FIELD_ENUMVAL (*field1) != FIELD_ENUMVAL (*field2)) | |
3310 | return 0; | |
3311 | break; | |
3312 | case FIELD_LOC_KIND_PHYSADDR: | |
3313 | if (FIELD_STATIC_PHYSADDR (*field1) | |
3314 | != FIELD_STATIC_PHYSADDR (*field2)) | |
3315 | return 0; | |
3316 | break; | |
3317 | case FIELD_LOC_KIND_PHYSNAME: | |
3318 | if (!compare_maybe_null_strings (FIELD_STATIC_PHYSNAME (*field1), | |
3319 | FIELD_STATIC_PHYSNAME (*field2))) | |
3320 | return 0; | |
3321 | break; | |
3322 | case FIELD_LOC_KIND_DWARF_BLOCK: | |
3323 | { | |
3324 | struct dwarf2_locexpr_baton *block1, *block2; | |
3325 | ||
3326 | block1 = FIELD_DWARF_BLOCK (*field1); | |
3327 | block2 = FIELD_DWARF_BLOCK (*field2); | |
3328 | if (block1->per_cu != block2->per_cu | |
3329 | || block1->size != block2->size | |
3330 | || memcmp (block1->data, block2->data, block1->size) != 0) | |
3331 | return 0; | |
3332 | } | |
3333 | break; | |
3334 | default: | |
3335 | internal_error (__FILE__, __LINE__, _("Unsupported field kind " | |
3336 | "%d by check_types_equal"), | |
3337 | FIELD_LOC_KIND (*field1)); | |
3338 | } | |
3339 | ||
3340 | entry.type1 = FIELD_TYPE (*field1); | |
3341 | entry.type2 = FIELD_TYPE (*field2); | |
3342 | VEC_safe_push (type_equality_entry_d, *worklist, &entry); | |
3343 | } | |
3344 | } | |
3345 | ||
3346 | if (TYPE_TARGET_TYPE (type1) != NULL) | |
3347 | { | |
3348 | struct type_equality_entry entry; | |
3349 | ||
3350 | if (TYPE_TARGET_TYPE (type2) == NULL) | |
3351 | return 0; | |
3352 | ||
3353 | entry.type1 = TYPE_TARGET_TYPE (type1); | |
3354 | entry.type2 = TYPE_TARGET_TYPE (type2); | |
3355 | VEC_safe_push (type_equality_entry_d, *worklist, &entry); | |
3356 | } | |
3357 | else if (TYPE_TARGET_TYPE (type2) != NULL) | |
3358 | return 0; | |
3359 | ||
3360 | return 1; | |
3361 | } | |
3362 | ||
3363 | /* Check types on a worklist for equality. Returns zero if any pair | |
3364 | is not equal, non-zero if they are all considered equal. */ | |
3365 | ||
3366 | static int | |
3367 | check_types_worklist (VEC (type_equality_entry_d) **worklist, | |
3368 | struct bcache *cache) | |
3369 | { | |
3370 | while (!VEC_empty (type_equality_entry_d, *worklist)) | |
3371 | { | |
3372 | struct type_equality_entry entry; | |
3373 | int added; | |
3374 | ||
3375 | entry = *VEC_last (type_equality_entry_d, *worklist); | |
3376 | VEC_pop (type_equality_entry_d, *worklist); | |
3377 | ||
3378 | /* If the type pair has already been visited, we know it is | |
3379 | ok. */ | |
3380 | bcache_full (&entry, sizeof (entry), cache, &added); | |
3381 | if (!added) | |
3382 | continue; | |
3383 | ||
3384 | if (check_types_equal (entry.type1, entry.type2, worklist) == 0) | |
3385 | return 0; | |
3386 | } | |
7062b0a0 | 3387 | |
ca092b61 DE |
3388 | return 1; |
3389 | } | |
3390 | ||
3391 | /* Return non-zero if types TYPE1 and TYPE2 are equal, as determined by a | |
3392 | "deep comparison". Otherwise return zero. */ | |
3393 | ||
3394 | int | |
3395 | types_deeply_equal (struct type *type1, struct type *type2) | |
3396 | { | |
6c63c96a | 3397 | struct gdb_exception except = exception_none; |
ca092b61 DE |
3398 | int result = 0; |
3399 | struct bcache *cache; | |
3400 | VEC (type_equality_entry_d) *worklist = NULL; | |
3401 | struct type_equality_entry entry; | |
3402 | ||
3403 | gdb_assert (type1 != NULL && type2 != NULL); | |
3404 | ||
3405 | /* Early exit for the simple case. */ | |
3406 | if (type1 == type2) | |
3407 | return 1; | |
3408 | ||
3409 | cache = bcache_xmalloc (NULL, NULL); | |
3410 | ||
3411 | entry.type1 = type1; | |
3412 | entry.type2 = type2; | |
3413 | VEC_safe_push (type_equality_entry_d, worklist, &entry); | |
3414 | ||
6c63c96a PA |
3415 | /* check_types_worklist calls several nested helper functions, some |
3416 | of which can raise a GDB exception, so we just check and rethrow | |
3417 | here. If there is a GDB exception, a comparison is not capable | |
3418 | (or trusted), so exit. */ | |
492d29ea | 3419 | TRY |
ca092b61 DE |
3420 | { |
3421 | result = check_types_worklist (&worklist, cache); | |
3422 | } | |
6c63c96a | 3423 | CATCH (ex, RETURN_MASK_ALL) |
492d29ea | 3424 | { |
6c63c96a | 3425 | except = ex; |
492d29ea PA |
3426 | } |
3427 | END_CATCH | |
ca092b61 | 3428 | |
6c63c96a PA |
3429 | bcache_xfree (cache); |
3430 | VEC_free (type_equality_entry_d, worklist); | |
3431 | ||
3432 | /* Rethrow if there was a problem. */ | |
3433 | if (except.reason < 0) | |
3434 | throw_exception (except); | |
3435 | ||
ca092b61 DE |
3436 | return result; |
3437 | } | |
3f2f83dd KB |
3438 | |
3439 | /* Allocated status of type TYPE. Return zero if type TYPE is allocated. | |
3440 | Otherwise return one. */ | |
3441 | ||
3442 | int | |
3443 | type_not_allocated (const struct type *type) | |
3444 | { | |
3445 | struct dynamic_prop *prop = TYPE_ALLOCATED_PROP (type); | |
3446 | ||
3447 | return (prop && TYPE_DYN_PROP_KIND (prop) == PROP_CONST | |
3448 | && !TYPE_DYN_PROP_ADDR (prop)); | |
3449 | } | |
3450 | ||
3451 | /* Associated status of type TYPE. Return zero if type TYPE is associated. | |
3452 | Otherwise return one. */ | |
3453 | ||
3454 | int | |
3455 | type_not_associated (const struct type *type) | |
3456 | { | |
3457 | struct dynamic_prop *prop = TYPE_ASSOCIATED_PROP (type); | |
3458 | ||
3459 | return (prop && TYPE_DYN_PROP_KIND (prop) == PROP_CONST | |
3460 | && !TYPE_DYN_PROP_ADDR (prop)); | |
3461 | } | |
ca092b61 | 3462 | \f |
c906108c SS |
3463 | /* Compare one type (PARM) for compatibility with another (ARG). |
3464 | * PARM is intended to be the parameter type of a function; and | |
3465 | * ARG is the supplied argument's type. This function tests if | |
3466 | * the latter can be converted to the former. | |
da096638 | 3467 | * VALUE is the argument's value or NULL if none (or called recursively) |
c906108c SS |
3468 | * |
3469 | * Return 0 if they are identical types; | |
3470 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 MS |
3471 | * PARM is to ARG. The higher the return value, the worse the match. |
3472 | * Generally the "bad" conversions are all uniformly assigned a 100. */ | |
c906108c | 3473 | |
6403aeea | 3474 | struct rank |
da096638 | 3475 | rank_one_type (struct type *parm, struct type *arg, struct value *value) |
c906108c | 3476 | { |
a9d5ef47 | 3477 | struct rank rank = {0,0}; |
7062b0a0 SW |
3478 | |
3479 | if (types_equal (parm, arg)) | |
6403aeea | 3480 | return EXACT_MATCH_BADNESS; |
c906108c SS |
3481 | |
3482 | /* Resolve typedefs */ | |
3483 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
3484 | parm = check_typedef (parm); | |
3485 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
3486 | arg = check_typedef (arg); | |
3487 | ||
db577aea | 3488 | /* See through references, since we can almost make non-references |
7ba81444 | 3489 | references. */ |
db577aea | 3490 | if (TYPE_CODE (arg) == TYPE_CODE_REF) |
da096638 | 3491 | return (sum_ranks (rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL), |
6403aeea | 3492 | REFERENCE_CONVERSION_BADNESS)); |
db577aea | 3493 | if (TYPE_CODE (parm) == TYPE_CODE_REF) |
da096638 | 3494 | return (sum_ranks (rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL), |
6403aeea | 3495 | REFERENCE_CONVERSION_BADNESS)); |
5d161b24 | 3496 | if (overload_debug) |
7ba81444 MS |
3497 | /* Debugging only. */ |
3498 | fprintf_filtered (gdb_stderr, | |
3499 | "------ Arg is %s [%d], parm is %s [%d]\n", | |
3500 | TYPE_NAME (arg), TYPE_CODE (arg), | |
3501 | TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c | 3502 | |
0963b4bd | 3503 | /* x -> y means arg of type x being supplied for parameter of type y. */ |
c906108c SS |
3504 | |
3505 | switch (TYPE_CODE (parm)) | |
3506 | { | |
c5aa993b JM |
3507 | case TYPE_CODE_PTR: |
3508 | switch (TYPE_CODE (arg)) | |
3509 | { | |
3510 | case TYPE_CODE_PTR: | |
7062b0a0 SW |
3511 | |
3512 | /* Allowed pointer conversions are: | |
3513 | (a) pointer to void-pointer conversion. */ | |
3514 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) | |
c5aa993b | 3515 | return VOID_PTR_CONVERSION_BADNESS; |
7062b0a0 SW |
3516 | |
3517 | /* (b) pointer to ancestor-pointer conversion. */ | |
a9d5ef47 SW |
3518 | rank.subrank = distance_to_ancestor (TYPE_TARGET_TYPE (parm), |
3519 | TYPE_TARGET_TYPE (arg), | |
3520 | 0); | |
3521 | if (rank.subrank >= 0) | |
3522 | return sum_ranks (BASE_PTR_CONVERSION_BADNESS, rank); | |
7062b0a0 SW |
3523 | |
3524 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 3525 | case TYPE_CODE_ARRAY: |
7062b0a0 SW |
3526 | if (types_equal (TYPE_TARGET_TYPE (parm), |
3527 | TYPE_TARGET_TYPE (arg))) | |
6403aeea | 3528 | return EXACT_MATCH_BADNESS; |
7062b0a0 | 3529 | return INCOMPATIBLE_TYPE_BADNESS; |
c5aa993b | 3530 | case TYPE_CODE_FUNC: |
da096638 | 3531 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL); |
c5aa993b | 3532 | case TYPE_CODE_INT: |
a451cb65 | 3533 | if (value != NULL && TYPE_CODE (value_type (value)) == TYPE_CODE_INT) |
da096638 | 3534 | { |
a451cb65 KS |
3535 | if (value_as_long (value) == 0) |
3536 | { | |
3537 | /* Null pointer conversion: allow it to be cast to a pointer. | |
3538 | [4.10.1 of C++ standard draft n3290] */ | |
3539 | return NULL_POINTER_CONVERSION_BADNESS; | |
3540 | } | |
3541 | else | |
3542 | { | |
3543 | /* If type checking is disabled, allow the conversion. */ | |
3544 | if (!strict_type_checking) | |
3545 | return NS_INTEGER_POINTER_CONVERSION_BADNESS; | |
3546 | } | |
da096638 KS |
3547 | } |
3548 | /* fall through */ | |
c5aa993b | 3549 | case TYPE_CODE_ENUM: |
4f2aea11 | 3550 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
3551 | case TYPE_CODE_CHAR: |
3552 | case TYPE_CODE_RANGE: | |
3553 | case TYPE_CODE_BOOL: | |
c5aa993b JM |
3554 | default: |
3555 | return INCOMPATIBLE_TYPE_BADNESS; | |
3556 | } | |
3557 | case TYPE_CODE_ARRAY: | |
3558 | switch (TYPE_CODE (arg)) | |
3559 | { | |
3560 | case TYPE_CODE_PTR: | |
3561 | case TYPE_CODE_ARRAY: | |
7ba81444 | 3562 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
da096638 | 3563 | TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
3564 | default: |
3565 | return INCOMPATIBLE_TYPE_BADNESS; | |
3566 | } | |
3567 | case TYPE_CODE_FUNC: | |
3568 | switch (TYPE_CODE (arg)) | |
3569 | { | |
3570 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
da096638 | 3571 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
3572 | default: |
3573 | return INCOMPATIBLE_TYPE_BADNESS; | |
3574 | } | |
3575 | case TYPE_CODE_INT: | |
3576 | switch (TYPE_CODE (arg)) | |
3577 | { | |
3578 | case TYPE_CODE_INT: | |
3579 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
3580 | { | |
3581 | /* Deal with signed, unsigned, and plain chars and | |
7ba81444 | 3582 | signed and unsigned ints. */ |
c5aa993b JM |
3583 | if (TYPE_NOSIGN (parm)) |
3584 | { | |
0963b4bd | 3585 | /* This case only for character types. */ |
7ba81444 | 3586 | if (TYPE_NOSIGN (arg)) |
6403aeea | 3587 | return EXACT_MATCH_BADNESS; /* plain char -> plain char */ |
7ba81444 MS |
3588 | else /* signed/unsigned char -> plain char */ |
3589 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
3590 | } |
3591 | else if (TYPE_UNSIGNED (parm)) | |
3592 | { | |
3593 | if (TYPE_UNSIGNED (arg)) | |
3594 | { | |
7ba81444 MS |
3595 | /* unsigned int -> unsigned int, or |
3596 | unsigned long -> unsigned long */ | |
3597 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
3598 | TYPE_NAME (arg))) | |
6403aeea | 3599 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
3600 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
3601 | "int") | |
3602 | && integer_types_same_name_p (TYPE_NAME (parm), | |
3603 | "long")) | |
3e43a32a MS |
3604 | /* unsigned int -> unsigned long */ |
3605 | return INTEGER_PROMOTION_BADNESS; | |
c5aa993b | 3606 | else |
3e43a32a MS |
3607 | /* unsigned long -> unsigned int */ |
3608 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
3609 | } |
3610 | else | |
3611 | { | |
7ba81444 MS |
3612 | if (integer_types_same_name_p (TYPE_NAME (arg), |
3613 | "long") | |
3614 | && integer_types_same_name_p (TYPE_NAME (parm), | |
3615 | "int")) | |
3e43a32a MS |
3616 | /* signed long -> unsigned int */ |
3617 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b | 3618 | else |
3e43a32a MS |
3619 | /* signed int/long -> unsigned int/long */ |
3620 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
3621 | } |
3622 | } | |
3623 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
3624 | { | |
7ba81444 MS |
3625 | if (integer_types_same_name_p (TYPE_NAME (parm), |
3626 | TYPE_NAME (arg))) | |
6403aeea | 3627 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
3628 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
3629 | "int") | |
3630 | && integer_types_same_name_p (TYPE_NAME (parm), | |
3631 | "long")) | |
c5aa993b JM |
3632 | return INTEGER_PROMOTION_BADNESS; |
3633 | else | |
1c5cb38e | 3634 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3635 | } |
3636 | else | |
1c5cb38e | 3637 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3638 | } |
3639 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
3640 | return INTEGER_PROMOTION_BADNESS; | |
3641 | else | |
1c5cb38e | 3642 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b | 3643 | case TYPE_CODE_ENUM: |
4f2aea11 | 3644 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
3645 | case TYPE_CODE_CHAR: |
3646 | case TYPE_CODE_RANGE: | |
3647 | case TYPE_CODE_BOOL: | |
3d567982 TT |
3648 | if (TYPE_DECLARED_CLASS (arg)) |
3649 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b JM |
3650 | return INTEGER_PROMOTION_BADNESS; |
3651 | case TYPE_CODE_FLT: | |
3652 | return INT_FLOAT_CONVERSION_BADNESS; | |
3653 | case TYPE_CODE_PTR: | |
3654 | return NS_POINTER_CONVERSION_BADNESS; | |
3655 | default: | |
3656 | return INCOMPATIBLE_TYPE_BADNESS; | |
3657 | } | |
3658 | break; | |
3659 | case TYPE_CODE_ENUM: | |
3660 | switch (TYPE_CODE (arg)) | |
3661 | { | |
3662 | case TYPE_CODE_INT: | |
3663 | case TYPE_CODE_CHAR: | |
3664 | case TYPE_CODE_RANGE: | |
3665 | case TYPE_CODE_BOOL: | |
3666 | case TYPE_CODE_ENUM: | |
3d567982 TT |
3667 | if (TYPE_DECLARED_CLASS (parm) || TYPE_DECLARED_CLASS (arg)) |
3668 | return INCOMPATIBLE_TYPE_BADNESS; | |
1c5cb38e | 3669 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3670 | case TYPE_CODE_FLT: |
3671 | return INT_FLOAT_CONVERSION_BADNESS; | |
3672 | default: | |
3673 | return INCOMPATIBLE_TYPE_BADNESS; | |
3674 | } | |
3675 | break; | |
3676 | case TYPE_CODE_CHAR: | |
3677 | switch (TYPE_CODE (arg)) | |
3678 | { | |
3679 | case TYPE_CODE_RANGE: | |
3680 | case TYPE_CODE_BOOL: | |
3681 | case TYPE_CODE_ENUM: | |
3d567982 TT |
3682 | if (TYPE_DECLARED_CLASS (arg)) |
3683 | return INCOMPATIBLE_TYPE_BADNESS; | |
1c5cb38e | 3684 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3685 | case TYPE_CODE_FLT: |
3686 | return INT_FLOAT_CONVERSION_BADNESS; | |
3687 | case TYPE_CODE_INT: | |
3688 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
1c5cb38e | 3689 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3690 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) |
3691 | return INTEGER_PROMOTION_BADNESS; | |
3692 | /* >>> !! else fall through !! <<< */ | |
3693 | case TYPE_CODE_CHAR: | |
7ba81444 MS |
3694 | /* Deal with signed, unsigned, and plain chars for C++ and |
3695 | with int cases falling through from previous case. */ | |
c5aa993b JM |
3696 | if (TYPE_NOSIGN (parm)) |
3697 | { | |
3698 | if (TYPE_NOSIGN (arg)) | |
6403aeea | 3699 | return EXACT_MATCH_BADNESS; |
c5aa993b | 3700 | else |
1c5cb38e | 3701 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3702 | } |
3703 | else if (TYPE_UNSIGNED (parm)) | |
3704 | { | |
3705 | if (TYPE_UNSIGNED (arg)) | |
6403aeea | 3706 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3707 | else |
3708 | return INTEGER_PROMOTION_BADNESS; | |
3709 | } | |
3710 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
6403aeea | 3711 | return EXACT_MATCH_BADNESS; |
c5aa993b | 3712 | else |
1c5cb38e | 3713 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3714 | default: |
3715 | return INCOMPATIBLE_TYPE_BADNESS; | |
3716 | } | |
3717 | break; | |
3718 | case TYPE_CODE_RANGE: | |
3719 | switch (TYPE_CODE (arg)) | |
3720 | { | |
3721 | case TYPE_CODE_INT: | |
3722 | case TYPE_CODE_CHAR: | |
3723 | case TYPE_CODE_RANGE: | |
3724 | case TYPE_CODE_BOOL: | |
3725 | case TYPE_CODE_ENUM: | |
1c5cb38e | 3726 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3727 | case TYPE_CODE_FLT: |
3728 | return INT_FLOAT_CONVERSION_BADNESS; | |
3729 | default: | |
3730 | return INCOMPATIBLE_TYPE_BADNESS; | |
3731 | } | |
3732 | break; | |
3733 | case TYPE_CODE_BOOL: | |
3734 | switch (TYPE_CODE (arg)) | |
3735 | { | |
5b4f6e25 KS |
3736 | /* n3290 draft, section 4.12.1 (conv.bool): |
3737 | ||
3738 | "A prvalue of arithmetic, unscoped enumeration, pointer, or | |
3739 | pointer to member type can be converted to a prvalue of type | |
3740 | bool. A zero value, null pointer value, or null member pointer | |
3741 | value is converted to false; any other value is converted to | |
3742 | true. A prvalue of type std::nullptr_t can be converted to a | |
3743 | prvalue of type bool; the resulting value is false." */ | |
c5aa993b JM |
3744 | case TYPE_CODE_INT: |
3745 | case TYPE_CODE_CHAR: | |
c5aa993b JM |
3746 | case TYPE_CODE_ENUM: |
3747 | case TYPE_CODE_FLT: | |
5b4f6e25 | 3748 | case TYPE_CODE_MEMBERPTR: |
c5aa993b | 3749 | case TYPE_CODE_PTR: |
5b4f6e25 KS |
3750 | return BOOL_CONVERSION_BADNESS; |
3751 | case TYPE_CODE_RANGE: | |
3752 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 3753 | case TYPE_CODE_BOOL: |
6403aeea | 3754 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3755 | default: |
3756 | return INCOMPATIBLE_TYPE_BADNESS; | |
3757 | } | |
3758 | break; | |
3759 | case TYPE_CODE_FLT: | |
3760 | switch (TYPE_CODE (arg)) | |
3761 | { | |
3762 | case TYPE_CODE_FLT: | |
3763 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
3764 | return FLOAT_PROMOTION_BADNESS; | |
3765 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
6403aeea | 3766 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3767 | else |
3768 | return FLOAT_CONVERSION_BADNESS; | |
3769 | case TYPE_CODE_INT: | |
3770 | case TYPE_CODE_BOOL: | |
3771 | case TYPE_CODE_ENUM: | |
3772 | case TYPE_CODE_RANGE: | |
3773 | case TYPE_CODE_CHAR: | |
3774 | return INT_FLOAT_CONVERSION_BADNESS; | |
3775 | default: | |
3776 | return INCOMPATIBLE_TYPE_BADNESS; | |
3777 | } | |
3778 | break; | |
3779 | case TYPE_CODE_COMPLEX: | |
3780 | switch (TYPE_CODE (arg)) | |
7ba81444 | 3781 | { /* Strictly not needed for C++, but... */ |
c5aa993b JM |
3782 | case TYPE_CODE_FLT: |
3783 | return FLOAT_PROMOTION_BADNESS; | |
3784 | case TYPE_CODE_COMPLEX: | |
6403aeea | 3785 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3786 | default: |
3787 | return INCOMPATIBLE_TYPE_BADNESS; | |
3788 | } | |
3789 | break; | |
3790 | case TYPE_CODE_STRUCT: | |
c5aa993b JM |
3791 | switch (TYPE_CODE (arg)) |
3792 | { | |
3793 | case TYPE_CODE_STRUCT: | |
3794 | /* Check for derivation */ | |
a9d5ef47 SW |
3795 | rank.subrank = distance_to_ancestor (parm, arg, 0); |
3796 | if (rank.subrank >= 0) | |
3797 | return sum_ranks (BASE_CONVERSION_BADNESS, rank); | |
c5aa993b JM |
3798 | /* else fall through */ |
3799 | default: | |
3800 | return INCOMPATIBLE_TYPE_BADNESS; | |
3801 | } | |
3802 | break; | |
3803 | case TYPE_CODE_UNION: | |
3804 | switch (TYPE_CODE (arg)) | |
3805 | { | |
3806 | case TYPE_CODE_UNION: | |
3807 | default: | |
3808 | return INCOMPATIBLE_TYPE_BADNESS; | |
3809 | } | |
3810 | break; | |
0d5de010 | 3811 | case TYPE_CODE_MEMBERPTR: |
c5aa993b JM |
3812 | switch (TYPE_CODE (arg)) |
3813 | { | |
3814 | default: | |
3815 | return INCOMPATIBLE_TYPE_BADNESS; | |
3816 | } | |
3817 | break; | |
3818 | case TYPE_CODE_METHOD: | |
3819 | switch (TYPE_CODE (arg)) | |
3820 | { | |
3821 | ||
3822 | default: | |
3823 | return INCOMPATIBLE_TYPE_BADNESS; | |
3824 | } | |
3825 | break; | |
3826 | case TYPE_CODE_REF: | |
3827 | switch (TYPE_CODE (arg)) | |
3828 | { | |
3829 | ||
3830 | default: | |
3831 | return INCOMPATIBLE_TYPE_BADNESS; | |
3832 | } | |
3833 | ||
3834 | break; | |
3835 | case TYPE_CODE_SET: | |
3836 | switch (TYPE_CODE (arg)) | |
3837 | { | |
3838 | /* Not in C++ */ | |
3839 | case TYPE_CODE_SET: | |
7ba81444 | 3840 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), |
da096638 | 3841 | TYPE_FIELD_TYPE (arg, 0), NULL); |
c5aa993b JM |
3842 | default: |
3843 | return INCOMPATIBLE_TYPE_BADNESS; | |
3844 | } | |
3845 | break; | |
3846 | case TYPE_CODE_VOID: | |
3847 | default: | |
3848 | return INCOMPATIBLE_TYPE_BADNESS; | |
3849 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
3850 | } |
3851 | ||
0963b4bd | 3852 | /* End of functions for overload resolution. */ |
5212577a DE |
3853 | \f |
3854 | /* Routines to pretty-print types. */ | |
c906108c | 3855 | |
c906108c | 3856 | static void |
fba45db2 | 3857 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
3858 | { |
3859 | int bitno; | |
3860 | ||
3861 | for (bitno = 0; bitno < nbits; bitno++) | |
3862 | { | |
3863 | if ((bitno % 8) == 0) | |
3864 | { | |
3865 | puts_filtered (" "); | |
3866 | } | |
3867 | if (B_TST (bits, bitno)) | |
a3f17187 | 3868 | printf_filtered (("1")); |
c906108c | 3869 | else |
a3f17187 | 3870 | printf_filtered (("0")); |
c906108c SS |
3871 | } |
3872 | } | |
3873 | ||
ad2f7632 | 3874 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
3875 | include it since we may get into a infinitely recursive |
3876 | situation. */ | |
c906108c SS |
3877 | |
3878 | static void | |
4c9e8482 | 3879 | print_args (struct field *args, int nargs, int spaces) |
c906108c SS |
3880 | { |
3881 | if (args != NULL) | |
3882 | { | |
ad2f7632 DJ |
3883 | int i; |
3884 | ||
3885 | for (i = 0; i < nargs; i++) | |
4c9e8482 DE |
3886 | { |
3887 | printfi_filtered (spaces, "[%d] name '%s'\n", i, | |
3888 | args[i].name != NULL ? args[i].name : "<NULL>"); | |
3889 | recursive_dump_type (args[i].type, spaces + 2); | |
3890 | } | |
c906108c SS |
3891 | } |
3892 | } | |
3893 | ||
d6a843b5 JK |
3894 | int |
3895 | field_is_static (struct field *f) | |
3896 | { | |
3897 | /* "static" fields are the fields whose location is not relative | |
3898 | to the address of the enclosing struct. It would be nice to | |
3899 | have a dedicated flag that would be set for static fields when | |
3900 | the type is being created. But in practice, checking the field | |
254e6b9e | 3901 | loc_kind should give us an accurate answer. */ |
d6a843b5 JK |
3902 | return (FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSNAME |
3903 | || FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSADDR); | |
3904 | } | |
3905 | ||
c906108c | 3906 | static void |
fba45db2 | 3907 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
3908 | { |
3909 | int method_idx; | |
3910 | int overload_idx; | |
3911 | struct fn_field *f; | |
3912 | ||
3913 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 3914 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
3915 | printf_filtered ("\n"); |
3916 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
3917 | { | |
3918 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
3919 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
3920 | method_idx, | |
3921 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
3922 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
3923 | gdb_stdout); | |
a3f17187 | 3924 | printf_filtered (_(") length %d\n"), |
c906108c SS |
3925 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
3926 | for (overload_idx = 0; | |
3927 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
3928 | overload_idx++) | |
3929 | { | |
3930 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
3931 | overload_idx, | |
3932 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
3933 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
3934 | gdb_stdout); | |
c906108c SS |
3935 | printf_filtered (")\n"); |
3936 | printfi_filtered (spaces + 8, "type "); | |
7ba81444 MS |
3937 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
3938 | gdb_stdout); | |
c906108c SS |
3939 | printf_filtered ("\n"); |
3940 | ||
3941 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
3942 | spaces + 8 + 2); | |
3943 | ||
3944 | printfi_filtered (spaces + 8, "args "); | |
7ba81444 MS |
3945 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
3946 | gdb_stdout); | |
c906108c | 3947 | printf_filtered ("\n"); |
4c9e8482 DE |
3948 | print_args (TYPE_FN_FIELD_ARGS (f, overload_idx), |
3949 | TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, overload_idx)), | |
3950 | spaces + 8 + 2); | |
c906108c | 3951 | printfi_filtered (spaces + 8, "fcontext "); |
d4f3574e SS |
3952 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
3953 | gdb_stdout); | |
c906108c SS |
3954 | printf_filtered ("\n"); |
3955 | ||
3956 | printfi_filtered (spaces + 8, "is_const %d\n", | |
3957 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
3958 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
3959 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
3960 | printfi_filtered (spaces + 8, "is_private %d\n", | |
3961 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
3962 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
3963 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
3964 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
3965 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
3966 | printfi_filtered (spaces + 8, "voffset %u\n", | |
3967 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
3968 | } | |
3969 | } | |
3970 | } | |
3971 | ||
3972 | static void | |
fba45db2 | 3973 | print_cplus_stuff (struct type *type, int spaces) |
c906108c | 3974 | { |
ae6ae975 DE |
3975 | printfi_filtered (spaces, "vptr_fieldno %d\n", TYPE_VPTR_FIELDNO (type)); |
3976 | printfi_filtered (spaces, "vptr_basetype "); | |
3977 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); | |
3978 | puts_filtered ("\n"); | |
3979 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
3980 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
3981 | ||
c906108c SS |
3982 | printfi_filtered (spaces, "n_baseclasses %d\n", |
3983 | TYPE_N_BASECLASSES (type)); | |
3984 | printfi_filtered (spaces, "nfn_fields %d\n", | |
3985 | TYPE_NFN_FIELDS (type)); | |
c906108c SS |
3986 | if (TYPE_N_BASECLASSES (type) > 0) |
3987 | { | |
3988 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
3989 | TYPE_N_BASECLASSES (type)); | |
7ba81444 MS |
3990 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
3991 | gdb_stdout); | |
c906108c SS |
3992 | printf_filtered (")"); |
3993 | ||
3994 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
3995 | TYPE_N_BASECLASSES (type)); | |
3996 | puts_filtered ("\n"); | |
3997 | } | |
3998 | if (TYPE_NFIELDS (type) > 0) | |
3999 | { | |
4000 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
4001 | { | |
7ba81444 MS |
4002 | printfi_filtered (spaces, |
4003 | "private_field_bits (%d bits at *", | |
c906108c | 4004 | TYPE_NFIELDS (type)); |
7ba81444 MS |
4005 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
4006 | gdb_stdout); | |
c906108c SS |
4007 | printf_filtered (")"); |
4008 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
4009 | TYPE_NFIELDS (type)); | |
4010 | puts_filtered ("\n"); | |
4011 | } | |
4012 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
4013 | { | |
7ba81444 MS |
4014 | printfi_filtered (spaces, |
4015 | "protected_field_bits (%d bits at *", | |
c906108c | 4016 | TYPE_NFIELDS (type)); |
7ba81444 MS |
4017 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
4018 | gdb_stdout); | |
c906108c SS |
4019 | printf_filtered (")"); |
4020 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
4021 | TYPE_NFIELDS (type)); | |
4022 | puts_filtered ("\n"); | |
4023 | } | |
4024 | } | |
4025 | if (TYPE_NFN_FIELDS (type) > 0) | |
4026 | { | |
4027 | dump_fn_fieldlists (type, spaces); | |
4028 | } | |
4029 | } | |
4030 | ||
b4ba55a1 JB |
4031 | /* Print the contents of the TYPE's type_specific union, assuming that |
4032 | its type-specific kind is TYPE_SPECIFIC_GNAT_STUFF. */ | |
4033 | ||
4034 | static void | |
4035 | print_gnat_stuff (struct type *type, int spaces) | |
4036 | { | |
4037 | struct type *descriptive_type = TYPE_DESCRIPTIVE_TYPE (type); | |
4038 | ||
8cd00c59 PMR |
4039 | if (descriptive_type == NULL) |
4040 | printfi_filtered (spaces + 2, "no descriptive type\n"); | |
4041 | else | |
4042 | { | |
4043 | printfi_filtered (spaces + 2, "descriptive type\n"); | |
4044 | recursive_dump_type (descriptive_type, spaces + 4); | |
4045 | } | |
b4ba55a1 JB |
4046 | } |
4047 | ||
c906108c SS |
4048 | static struct obstack dont_print_type_obstack; |
4049 | ||
4050 | void | |
fba45db2 | 4051 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
4052 | { |
4053 | int idx; | |
4054 | ||
4055 | if (spaces == 0) | |
4056 | obstack_begin (&dont_print_type_obstack, 0); | |
4057 | ||
4058 | if (TYPE_NFIELDS (type) > 0 | |
b4ba55a1 | 4059 | || (HAVE_CPLUS_STRUCT (type) && TYPE_NFN_FIELDS (type) > 0)) |
c906108c SS |
4060 | { |
4061 | struct type **first_dont_print | |
7ba81444 | 4062 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 4063 | |
7ba81444 MS |
4064 | int i = (struct type **) |
4065 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
4066 | |
4067 | while (--i >= 0) | |
4068 | { | |
4069 | if (type == first_dont_print[i]) | |
4070 | { | |
4071 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 4072 | gdb_print_host_address (type, gdb_stdout); |
a3f17187 | 4073 | printf_filtered (_(" <same as already seen type>\n")); |
c906108c SS |
4074 | return; |
4075 | } | |
4076 | } | |
4077 | ||
4078 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
4079 | } | |
4080 | ||
4081 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 4082 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
4083 | printf_filtered ("\n"); |
4084 | printfi_filtered (spaces, "name '%s' (", | |
4085 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 4086 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c | 4087 | printf_filtered (")\n"); |
e9e79dd9 FF |
4088 | printfi_filtered (spaces, "tagname '%s' (", |
4089 | TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>"); | |
4090 | gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); | |
4091 | printf_filtered (")\n"); | |
c906108c SS |
4092 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
4093 | switch (TYPE_CODE (type)) | |
4094 | { | |
c5aa993b JM |
4095 | case TYPE_CODE_UNDEF: |
4096 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
4097 | break; | |
4098 | case TYPE_CODE_PTR: | |
4099 | printf_filtered ("(TYPE_CODE_PTR)"); | |
4100 | break; | |
4101 | case TYPE_CODE_ARRAY: | |
4102 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
4103 | break; | |
4104 | case TYPE_CODE_STRUCT: | |
4105 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
4106 | break; | |
4107 | case TYPE_CODE_UNION: | |
4108 | printf_filtered ("(TYPE_CODE_UNION)"); | |
4109 | break; | |
4110 | case TYPE_CODE_ENUM: | |
4111 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
4112 | break; | |
4f2aea11 MK |
4113 | case TYPE_CODE_FLAGS: |
4114 | printf_filtered ("(TYPE_CODE_FLAGS)"); | |
4115 | break; | |
c5aa993b JM |
4116 | case TYPE_CODE_FUNC: |
4117 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
4118 | break; | |
4119 | case TYPE_CODE_INT: | |
4120 | printf_filtered ("(TYPE_CODE_INT)"); | |
4121 | break; | |
4122 | case TYPE_CODE_FLT: | |
4123 | printf_filtered ("(TYPE_CODE_FLT)"); | |
4124 | break; | |
4125 | case TYPE_CODE_VOID: | |
4126 | printf_filtered ("(TYPE_CODE_VOID)"); | |
4127 | break; | |
4128 | case TYPE_CODE_SET: | |
4129 | printf_filtered ("(TYPE_CODE_SET)"); | |
4130 | break; | |
4131 | case TYPE_CODE_RANGE: | |
4132 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
4133 | break; | |
4134 | case TYPE_CODE_STRING: | |
4135 | printf_filtered ("(TYPE_CODE_STRING)"); | |
4136 | break; | |
4137 | case TYPE_CODE_ERROR: | |
4138 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
4139 | break; | |
0d5de010 DJ |
4140 | case TYPE_CODE_MEMBERPTR: |
4141 | printf_filtered ("(TYPE_CODE_MEMBERPTR)"); | |
4142 | break; | |
4143 | case TYPE_CODE_METHODPTR: | |
4144 | printf_filtered ("(TYPE_CODE_METHODPTR)"); | |
c5aa993b JM |
4145 | break; |
4146 | case TYPE_CODE_METHOD: | |
4147 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
4148 | break; | |
4149 | case TYPE_CODE_REF: | |
4150 | printf_filtered ("(TYPE_CODE_REF)"); | |
4151 | break; | |
4152 | case TYPE_CODE_CHAR: | |
4153 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
4154 | break; | |
4155 | case TYPE_CODE_BOOL: | |
4156 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
4157 | break; | |
e9e79dd9 FF |
4158 | case TYPE_CODE_COMPLEX: |
4159 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
4160 | break; | |
c5aa993b JM |
4161 | case TYPE_CODE_TYPEDEF: |
4162 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
4163 | break; | |
5c4e30ca DC |
4164 | case TYPE_CODE_NAMESPACE: |
4165 | printf_filtered ("(TYPE_CODE_NAMESPACE)"); | |
4166 | break; | |
c5aa993b JM |
4167 | default: |
4168 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
4169 | break; | |
c906108c SS |
4170 | } |
4171 | puts_filtered ("\n"); | |
4172 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
e9bb382b UW |
4173 | if (TYPE_OBJFILE_OWNED (type)) |
4174 | { | |
4175 | printfi_filtered (spaces, "objfile "); | |
4176 | gdb_print_host_address (TYPE_OWNER (type).objfile, gdb_stdout); | |
4177 | } | |
4178 | else | |
4179 | { | |
4180 | printfi_filtered (spaces, "gdbarch "); | |
4181 | gdb_print_host_address (TYPE_OWNER (type).gdbarch, gdb_stdout); | |
4182 | } | |
c906108c SS |
4183 | printf_filtered ("\n"); |
4184 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 4185 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
4186 | printf_filtered ("\n"); |
4187 | if (TYPE_TARGET_TYPE (type) != NULL) | |
4188 | { | |
4189 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
4190 | } | |
4191 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 4192 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
4193 | printf_filtered ("\n"); |
4194 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 4195 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 4196 | printf_filtered ("\n"); |
2fdde8f8 DJ |
4197 | printfi_filtered (spaces, "type_chain "); |
4198 | gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); | |
e9e79dd9 | 4199 | printf_filtered ("\n"); |
7ba81444 MS |
4200 | printfi_filtered (spaces, "instance_flags 0x%x", |
4201 | TYPE_INSTANCE_FLAGS (type)); | |
2fdde8f8 DJ |
4202 | if (TYPE_CONST (type)) |
4203 | { | |
4204 | puts_filtered (" TYPE_FLAG_CONST"); | |
4205 | } | |
4206 | if (TYPE_VOLATILE (type)) | |
4207 | { | |
4208 | puts_filtered (" TYPE_FLAG_VOLATILE"); | |
4209 | } | |
4210 | if (TYPE_CODE_SPACE (type)) | |
4211 | { | |
4212 | puts_filtered (" TYPE_FLAG_CODE_SPACE"); | |
4213 | } | |
4214 | if (TYPE_DATA_SPACE (type)) | |
4215 | { | |
4216 | puts_filtered (" TYPE_FLAG_DATA_SPACE"); | |
4217 | } | |
8b2dbe47 KB |
4218 | if (TYPE_ADDRESS_CLASS_1 (type)) |
4219 | { | |
4220 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_1"); | |
4221 | } | |
4222 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
4223 | { | |
4224 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_2"); | |
4225 | } | |
06d66ee9 TT |
4226 | if (TYPE_RESTRICT (type)) |
4227 | { | |
4228 | puts_filtered (" TYPE_FLAG_RESTRICT"); | |
4229 | } | |
a2c2acaf MW |
4230 | if (TYPE_ATOMIC (type)) |
4231 | { | |
4232 | puts_filtered (" TYPE_FLAG_ATOMIC"); | |
4233 | } | |
2fdde8f8 | 4234 | puts_filtered ("\n"); |
876cecd0 TT |
4235 | |
4236 | printfi_filtered (spaces, "flags"); | |
762a036f | 4237 | if (TYPE_UNSIGNED (type)) |
c906108c SS |
4238 | { |
4239 | puts_filtered (" TYPE_FLAG_UNSIGNED"); | |
4240 | } | |
762a036f FF |
4241 | if (TYPE_NOSIGN (type)) |
4242 | { | |
4243 | puts_filtered (" TYPE_FLAG_NOSIGN"); | |
4244 | } | |
4245 | if (TYPE_STUB (type)) | |
c906108c SS |
4246 | { |
4247 | puts_filtered (" TYPE_FLAG_STUB"); | |
4248 | } | |
762a036f FF |
4249 | if (TYPE_TARGET_STUB (type)) |
4250 | { | |
4251 | puts_filtered (" TYPE_FLAG_TARGET_STUB"); | |
4252 | } | |
4253 | if (TYPE_STATIC (type)) | |
4254 | { | |
4255 | puts_filtered (" TYPE_FLAG_STATIC"); | |
4256 | } | |
762a036f FF |
4257 | if (TYPE_PROTOTYPED (type)) |
4258 | { | |
4259 | puts_filtered (" TYPE_FLAG_PROTOTYPED"); | |
4260 | } | |
4261 | if (TYPE_INCOMPLETE (type)) | |
4262 | { | |
4263 | puts_filtered (" TYPE_FLAG_INCOMPLETE"); | |
4264 | } | |
762a036f FF |
4265 | if (TYPE_VARARGS (type)) |
4266 | { | |
4267 | puts_filtered (" TYPE_FLAG_VARARGS"); | |
4268 | } | |
f5f8a009 EZ |
4269 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
4270 | an attribute for the array type, which tells whether or not we | |
4271 | have a vector, instead of a regular array. */ | |
4272 | if (TYPE_VECTOR (type)) | |
4273 | { | |
4274 | puts_filtered (" TYPE_FLAG_VECTOR"); | |
4275 | } | |
876cecd0 TT |
4276 | if (TYPE_FIXED_INSTANCE (type)) |
4277 | { | |
4278 | puts_filtered (" TYPE_FIXED_INSTANCE"); | |
4279 | } | |
4280 | if (TYPE_STUB_SUPPORTED (type)) | |
4281 | { | |
4282 | puts_filtered (" TYPE_STUB_SUPPORTED"); | |
4283 | } | |
4284 | if (TYPE_NOTTEXT (type)) | |
4285 | { | |
4286 | puts_filtered (" TYPE_NOTTEXT"); | |
4287 | } | |
c906108c SS |
4288 | puts_filtered ("\n"); |
4289 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 4290 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
4291 | puts_filtered ("\n"); |
4292 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
4293 | { | |
14e75d8e JK |
4294 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) |
4295 | printfi_filtered (spaces + 2, | |
4296 | "[%d] enumval %s type ", | |
4297 | idx, plongest (TYPE_FIELD_ENUMVAL (type, idx))); | |
4298 | else | |
4299 | printfi_filtered (spaces + 2, | |
6b850546 DT |
4300 | "[%d] bitpos %s bitsize %d type ", |
4301 | idx, plongest (TYPE_FIELD_BITPOS (type, idx)), | |
14e75d8e | 4302 | TYPE_FIELD_BITSIZE (type, idx)); |
d4f3574e | 4303 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
4304 | printf_filtered (" name '%s' (", |
4305 | TYPE_FIELD_NAME (type, idx) != NULL | |
4306 | ? TYPE_FIELD_NAME (type, idx) | |
4307 | : "<NULL>"); | |
d4f3574e | 4308 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
4309 | printf_filtered (")\n"); |
4310 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
4311 | { | |
4312 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
4313 | } | |
4314 | } | |
43bbcdc2 PH |
4315 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
4316 | { | |
4317 | printfi_filtered (spaces, "low %s%s high %s%s\n", | |
4318 | plongest (TYPE_LOW_BOUND (type)), | |
4319 | TYPE_LOW_BOUND_UNDEFINED (type) ? " (undefined)" : "", | |
4320 | plongest (TYPE_HIGH_BOUND (type)), | |
3e43a32a MS |
4321 | TYPE_HIGH_BOUND_UNDEFINED (type) |
4322 | ? " (undefined)" : ""); | |
43bbcdc2 | 4323 | } |
c906108c | 4324 | |
b4ba55a1 JB |
4325 | switch (TYPE_SPECIFIC_FIELD (type)) |
4326 | { | |
4327 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
4328 | printfi_filtered (spaces, "cplus_stuff "); | |
4329 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), | |
4330 | gdb_stdout); | |
4331 | puts_filtered ("\n"); | |
4332 | print_cplus_stuff (type, spaces); | |
4333 | break; | |
8da61cc4 | 4334 | |
b4ba55a1 JB |
4335 | case TYPE_SPECIFIC_GNAT_STUFF: |
4336 | printfi_filtered (spaces, "gnat_stuff "); | |
4337 | gdb_print_host_address (TYPE_GNAT_SPECIFIC (type), gdb_stdout); | |
4338 | puts_filtered ("\n"); | |
4339 | print_gnat_stuff (type, spaces); | |
4340 | break; | |
701c159d | 4341 | |
b4ba55a1 JB |
4342 | case TYPE_SPECIFIC_FLOATFORMAT: |
4343 | printfi_filtered (spaces, "floatformat "); | |
4344 | if (TYPE_FLOATFORMAT (type) == NULL) | |
4345 | puts_filtered ("(null)"); | |
4346 | else | |
4347 | { | |
4348 | puts_filtered ("{ "); | |
4349 | if (TYPE_FLOATFORMAT (type)[0] == NULL | |
4350 | || TYPE_FLOATFORMAT (type)[0]->name == NULL) | |
4351 | puts_filtered ("(null)"); | |
4352 | else | |
4353 | puts_filtered (TYPE_FLOATFORMAT (type)[0]->name); | |
4354 | ||
4355 | puts_filtered (", "); | |
4356 | if (TYPE_FLOATFORMAT (type)[1] == NULL | |
4357 | || TYPE_FLOATFORMAT (type)[1]->name == NULL) | |
4358 | puts_filtered ("(null)"); | |
4359 | else | |
4360 | puts_filtered (TYPE_FLOATFORMAT (type)[1]->name); | |
4361 | ||
4362 | puts_filtered (" }"); | |
4363 | } | |
4364 | puts_filtered ("\n"); | |
4365 | break; | |
c906108c | 4366 | |
b6cdc2c1 | 4367 | case TYPE_SPECIFIC_FUNC: |
b4ba55a1 JB |
4368 | printfi_filtered (spaces, "calling_convention %d\n", |
4369 | TYPE_CALLING_CONVENTION (type)); | |
b6cdc2c1 | 4370 | /* tail_call_list is not printed. */ |
b4ba55a1 | 4371 | break; |
09e2d7c7 DE |
4372 | |
4373 | case TYPE_SPECIFIC_SELF_TYPE: | |
4374 | printfi_filtered (spaces, "self_type "); | |
4375 | gdb_print_host_address (TYPE_SELF_TYPE (type), gdb_stdout); | |
4376 | puts_filtered ("\n"); | |
4377 | break; | |
c906108c | 4378 | } |
b4ba55a1 | 4379 | |
c906108c SS |
4380 | if (spaces == 0) |
4381 | obstack_free (&dont_print_type_obstack, NULL); | |
4382 | } | |
5212577a | 4383 | \f |
ae5a43e0 DJ |
4384 | /* Trivial helpers for the libiberty hash table, for mapping one |
4385 | type to another. */ | |
4386 | ||
4387 | struct type_pair | |
4388 | { | |
fe978cb0 | 4389 | struct type *old, *newobj; |
ae5a43e0 DJ |
4390 | }; |
4391 | ||
4392 | static hashval_t | |
4393 | type_pair_hash (const void *item) | |
4394 | { | |
9a3c8263 | 4395 | const struct type_pair *pair = (const struct type_pair *) item; |
d8734c88 | 4396 | |
ae5a43e0 DJ |
4397 | return htab_hash_pointer (pair->old); |
4398 | } | |
4399 | ||
4400 | static int | |
4401 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
4402 | { | |
9a3c8263 SM |
4403 | const struct type_pair *lhs = (const struct type_pair *) item_lhs; |
4404 | const struct type_pair *rhs = (const struct type_pair *) item_rhs; | |
d8734c88 | 4405 | |
ae5a43e0 DJ |
4406 | return lhs->old == rhs->old; |
4407 | } | |
4408 | ||
4409 | /* Allocate the hash table used by copy_type_recursive to walk | |
4410 | types without duplicates. We use OBJFILE's obstack, because | |
4411 | OBJFILE is about to be deleted. */ | |
4412 | ||
4413 | htab_t | |
4414 | create_copied_types_hash (struct objfile *objfile) | |
4415 | { | |
4416 | return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, | |
4417 | NULL, &objfile->objfile_obstack, | |
4418 | hashtab_obstack_allocate, | |
4419 | dummy_obstack_deallocate); | |
4420 | } | |
4421 | ||
d9823cbb KB |
4422 | /* Recursively copy (deep copy) a dynamic attribute list of a type. */ |
4423 | ||
4424 | static struct dynamic_prop_list * | |
4425 | copy_dynamic_prop_list (struct obstack *objfile_obstack, | |
4426 | struct dynamic_prop_list *list) | |
4427 | { | |
4428 | struct dynamic_prop_list *copy = list; | |
4429 | struct dynamic_prop_list **node_ptr = © | |
4430 | ||
4431 | while (*node_ptr != NULL) | |
4432 | { | |
4433 | struct dynamic_prop_list *node_copy; | |
4434 | ||
224c3ddb SM |
4435 | node_copy = ((struct dynamic_prop_list *) |
4436 | obstack_copy (objfile_obstack, *node_ptr, | |
4437 | sizeof (struct dynamic_prop_list))); | |
283a9958 | 4438 | node_copy->prop = (*node_ptr)->prop; |
d9823cbb KB |
4439 | *node_ptr = node_copy; |
4440 | ||
4441 | node_ptr = &node_copy->next; | |
4442 | } | |
4443 | ||
4444 | return copy; | |
4445 | } | |
4446 | ||
7ba81444 | 4447 | /* Recursively copy (deep copy) TYPE, if it is associated with |
eed8b28a PP |
4448 | OBJFILE. Return a new type owned by the gdbarch associated with the type, a |
4449 | saved type if we have already visited TYPE (using COPIED_TYPES), or TYPE if | |
4450 | it is not associated with OBJFILE. */ | |
ae5a43e0 DJ |
4451 | |
4452 | struct type * | |
7ba81444 MS |
4453 | copy_type_recursive (struct objfile *objfile, |
4454 | struct type *type, | |
ae5a43e0 DJ |
4455 | htab_t copied_types) |
4456 | { | |
4457 | struct type_pair *stored, pair; | |
4458 | void **slot; | |
4459 | struct type *new_type; | |
4460 | ||
e9bb382b | 4461 | if (! TYPE_OBJFILE_OWNED (type)) |
ae5a43e0 DJ |
4462 | return type; |
4463 | ||
7ba81444 MS |
4464 | /* This type shouldn't be pointing to any types in other objfiles; |
4465 | if it did, the type might disappear unexpectedly. */ | |
ae5a43e0 DJ |
4466 | gdb_assert (TYPE_OBJFILE (type) == objfile); |
4467 | ||
4468 | pair.old = type; | |
4469 | slot = htab_find_slot (copied_types, &pair, INSERT); | |
4470 | if (*slot != NULL) | |
fe978cb0 | 4471 | return ((struct type_pair *) *slot)->newobj; |
ae5a43e0 | 4472 | |
e9bb382b | 4473 | new_type = alloc_type_arch (get_type_arch (type)); |
ae5a43e0 DJ |
4474 | |
4475 | /* We must add the new type to the hash table immediately, in case | |
4476 | we encounter this type again during a recursive call below. */ | |
8d749320 | 4477 | stored = XOBNEW (&objfile->objfile_obstack, struct type_pair); |
ae5a43e0 | 4478 | stored->old = type; |
fe978cb0 | 4479 | stored->newobj = new_type; |
ae5a43e0 DJ |
4480 | *slot = stored; |
4481 | ||
876cecd0 TT |
4482 | /* Copy the common fields of types. For the main type, we simply |
4483 | copy the entire thing and then update specific fields as needed. */ | |
4484 | *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type); | |
e9bb382b UW |
4485 | TYPE_OBJFILE_OWNED (new_type) = 0; |
4486 | TYPE_OWNER (new_type).gdbarch = get_type_arch (type); | |
876cecd0 | 4487 | |
ae5a43e0 DJ |
4488 | if (TYPE_NAME (type)) |
4489 | TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type)); | |
4490 | if (TYPE_TAG_NAME (type)) | |
4491 | TYPE_TAG_NAME (new_type) = xstrdup (TYPE_TAG_NAME (type)); | |
ae5a43e0 DJ |
4492 | |
4493 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); | |
4494 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
4495 | ||
4496 | /* Copy the fields. */ | |
ae5a43e0 DJ |
4497 | if (TYPE_NFIELDS (type)) |
4498 | { | |
4499 | int i, nfields; | |
4500 | ||
4501 | nfields = TYPE_NFIELDS (type); | |
fc270c35 | 4502 | TYPE_FIELDS (new_type) = XCNEWVEC (struct field, nfields); |
ae5a43e0 DJ |
4503 | for (i = 0; i < nfields; i++) |
4504 | { | |
7ba81444 MS |
4505 | TYPE_FIELD_ARTIFICIAL (new_type, i) = |
4506 | TYPE_FIELD_ARTIFICIAL (type, i); | |
ae5a43e0 DJ |
4507 | TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
4508 | if (TYPE_FIELD_TYPE (type, i)) | |
4509 | TYPE_FIELD_TYPE (new_type, i) | |
4510 | = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i), | |
4511 | copied_types); | |
4512 | if (TYPE_FIELD_NAME (type, i)) | |
7ba81444 MS |
4513 | TYPE_FIELD_NAME (new_type, i) = |
4514 | xstrdup (TYPE_FIELD_NAME (type, i)); | |
d6a843b5 | 4515 | switch (TYPE_FIELD_LOC_KIND (type, i)) |
ae5a43e0 | 4516 | { |
d6a843b5 JK |
4517 | case FIELD_LOC_KIND_BITPOS: |
4518 | SET_FIELD_BITPOS (TYPE_FIELD (new_type, i), | |
4519 | TYPE_FIELD_BITPOS (type, i)); | |
4520 | break; | |
14e75d8e JK |
4521 | case FIELD_LOC_KIND_ENUMVAL: |
4522 | SET_FIELD_ENUMVAL (TYPE_FIELD (new_type, i), | |
4523 | TYPE_FIELD_ENUMVAL (type, i)); | |
4524 | break; | |
d6a843b5 JK |
4525 | case FIELD_LOC_KIND_PHYSADDR: |
4526 | SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i), | |
4527 | TYPE_FIELD_STATIC_PHYSADDR (type, i)); | |
4528 | break; | |
4529 | case FIELD_LOC_KIND_PHYSNAME: | |
4530 | SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i), | |
4531 | xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, | |
4532 | i))); | |
4533 | break; | |
4534 | default: | |
4535 | internal_error (__FILE__, __LINE__, | |
4536 | _("Unexpected type field location kind: %d"), | |
4537 | TYPE_FIELD_LOC_KIND (type, i)); | |
ae5a43e0 DJ |
4538 | } |
4539 | } | |
4540 | } | |
4541 | ||
0963b4bd | 4542 | /* For range types, copy the bounds information. */ |
43bbcdc2 PH |
4543 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
4544 | { | |
8d749320 | 4545 | TYPE_RANGE_DATA (new_type) = XNEW (struct range_bounds); |
43bbcdc2 PH |
4546 | *TYPE_RANGE_DATA (new_type) = *TYPE_RANGE_DATA (type); |
4547 | } | |
4548 | ||
d9823cbb KB |
4549 | if (TYPE_DYN_PROP_LIST (type) != NULL) |
4550 | TYPE_DYN_PROP_LIST (new_type) | |
4551 | = copy_dynamic_prop_list (&objfile->objfile_obstack, | |
4552 | TYPE_DYN_PROP_LIST (type)); | |
4553 | ||
3cdcd0ce | 4554 | |
ae5a43e0 DJ |
4555 | /* Copy pointers to other types. */ |
4556 | if (TYPE_TARGET_TYPE (type)) | |
7ba81444 MS |
4557 | TYPE_TARGET_TYPE (new_type) = |
4558 | copy_type_recursive (objfile, | |
4559 | TYPE_TARGET_TYPE (type), | |
4560 | copied_types); | |
f6b3afbf | 4561 | |
ae5a43e0 DJ |
4562 | /* Maybe copy the type_specific bits. |
4563 | ||
4564 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
4565 | base classes and methods. There's no fundamental reason why we | |
4566 | can't, but at the moment it is not needed. */ | |
4567 | ||
f6b3afbf DE |
4568 | switch (TYPE_SPECIFIC_FIELD (type)) |
4569 | { | |
4570 | case TYPE_SPECIFIC_NONE: | |
4571 | break; | |
4572 | case TYPE_SPECIFIC_FUNC: | |
4573 | INIT_FUNC_SPECIFIC (new_type); | |
4574 | TYPE_CALLING_CONVENTION (new_type) = TYPE_CALLING_CONVENTION (type); | |
4575 | TYPE_NO_RETURN (new_type) = TYPE_NO_RETURN (type); | |
4576 | TYPE_TAIL_CALL_LIST (new_type) = NULL; | |
4577 | break; | |
4578 | case TYPE_SPECIFIC_FLOATFORMAT: | |
4579 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); | |
4580 | break; | |
4581 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
4582 | INIT_CPLUS_SPECIFIC (new_type); | |
4583 | break; | |
4584 | case TYPE_SPECIFIC_GNAT_STUFF: | |
4585 | INIT_GNAT_SPECIFIC (new_type); | |
4586 | break; | |
09e2d7c7 DE |
4587 | case TYPE_SPECIFIC_SELF_TYPE: |
4588 | set_type_self_type (new_type, | |
4589 | copy_type_recursive (objfile, TYPE_SELF_TYPE (type), | |
4590 | copied_types)); | |
4591 | break; | |
f6b3afbf DE |
4592 | default: |
4593 | gdb_assert_not_reached ("bad type_specific_kind"); | |
4594 | } | |
ae5a43e0 DJ |
4595 | |
4596 | return new_type; | |
4597 | } | |
4598 | ||
4af88198 JB |
4599 | /* Make a copy of the given TYPE, except that the pointer & reference |
4600 | types are not preserved. | |
4601 | ||
4602 | This function assumes that the given type has an associated objfile. | |
4603 | This objfile is used to allocate the new type. */ | |
4604 | ||
4605 | struct type * | |
4606 | copy_type (const struct type *type) | |
4607 | { | |
4608 | struct type *new_type; | |
4609 | ||
e9bb382b | 4610 | gdb_assert (TYPE_OBJFILE_OWNED (type)); |
4af88198 | 4611 | |
e9bb382b | 4612 | new_type = alloc_type_copy (type); |
4af88198 JB |
4613 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); |
4614 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
4615 | memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type), | |
4616 | sizeof (struct main_type)); | |
d9823cbb KB |
4617 | if (TYPE_DYN_PROP_LIST (type) != NULL) |
4618 | TYPE_DYN_PROP_LIST (new_type) | |
4619 | = copy_dynamic_prop_list (&TYPE_OBJFILE (type) -> objfile_obstack, | |
4620 | TYPE_DYN_PROP_LIST (type)); | |
4af88198 JB |
4621 | |
4622 | return new_type; | |
4623 | } | |
5212577a | 4624 | \f |
e9bb382b UW |
4625 | /* Helper functions to initialize architecture-specific types. */ |
4626 | ||
4627 | /* Allocate a type structure associated with GDBARCH and set its | |
4628 | CODE, LENGTH, and NAME fields. */ | |
5212577a | 4629 | |
e9bb382b UW |
4630 | struct type * |
4631 | arch_type (struct gdbarch *gdbarch, | |
695bfa52 | 4632 | enum type_code code, int length, const char *name) |
e9bb382b UW |
4633 | { |
4634 | struct type *type; | |
4635 | ||
4636 | type = alloc_type_arch (gdbarch); | |
4637 | TYPE_CODE (type) = code; | |
4638 | TYPE_LENGTH (type) = length; | |
4639 | ||
4640 | if (name) | |
6c214e7c | 4641 | TYPE_NAME (type) = gdbarch_obstack_strdup (gdbarch, name); |
e9bb382b UW |
4642 | |
4643 | return type; | |
4644 | } | |
4645 | ||
4646 | /* Allocate a TYPE_CODE_INT type structure associated with GDBARCH. | |
4647 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
4648 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 4649 | |
e9bb382b UW |
4650 | struct type * |
4651 | arch_integer_type (struct gdbarch *gdbarch, | |
695bfa52 | 4652 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
4653 | { |
4654 | struct type *t; | |
4655 | ||
4656 | t = arch_type (gdbarch, TYPE_CODE_INT, bit / TARGET_CHAR_BIT, name); | |
4657 | if (unsigned_p) | |
4658 | TYPE_UNSIGNED (t) = 1; | |
4659 | if (name && strcmp (name, "char") == 0) | |
4660 | TYPE_NOSIGN (t) = 1; | |
4661 | ||
4662 | return t; | |
4663 | } | |
4664 | ||
4665 | /* Allocate a TYPE_CODE_CHAR type structure associated with GDBARCH. | |
4666 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
4667 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 4668 | |
e9bb382b UW |
4669 | struct type * |
4670 | arch_character_type (struct gdbarch *gdbarch, | |
695bfa52 | 4671 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
4672 | { |
4673 | struct type *t; | |
4674 | ||
4675 | t = arch_type (gdbarch, TYPE_CODE_CHAR, bit / TARGET_CHAR_BIT, name); | |
4676 | if (unsigned_p) | |
4677 | TYPE_UNSIGNED (t) = 1; | |
4678 | ||
4679 | return t; | |
4680 | } | |
4681 | ||
4682 | /* Allocate a TYPE_CODE_BOOL type structure associated with GDBARCH. | |
4683 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
4684 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 4685 | |
e9bb382b UW |
4686 | struct type * |
4687 | arch_boolean_type (struct gdbarch *gdbarch, | |
695bfa52 | 4688 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
4689 | { |
4690 | struct type *t; | |
4691 | ||
4692 | t = arch_type (gdbarch, TYPE_CODE_BOOL, bit / TARGET_CHAR_BIT, name); | |
4693 | if (unsigned_p) | |
4694 | TYPE_UNSIGNED (t) = 1; | |
4695 | ||
4696 | return t; | |
4697 | } | |
4698 | ||
4699 | /* Allocate a TYPE_CODE_FLT type structure associated with GDBARCH. | |
4700 | BIT is the type size in bits; if BIT equals -1, the size is | |
4701 | determined by the floatformat. NAME is the type name. Set the | |
4702 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
5212577a | 4703 | |
27067745 | 4704 | struct type * |
e9bb382b | 4705 | arch_float_type (struct gdbarch *gdbarch, |
695bfa52 TT |
4706 | int bit, const char *name, |
4707 | const struct floatformat **floatformats) | |
8da61cc4 DJ |
4708 | { |
4709 | struct type *t; | |
4710 | ||
4711 | if (bit == -1) | |
4712 | { | |
4713 | gdb_assert (floatformats != NULL); | |
4714 | gdb_assert (floatformats[0] != NULL && floatformats[1] != NULL); | |
4715 | bit = floatformats[0]->totalsize; | |
4716 | } | |
4717 | gdb_assert (bit >= 0); | |
4718 | ||
e9bb382b | 4719 | t = arch_type (gdbarch, TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, name); |
8da61cc4 | 4720 | TYPE_FLOATFORMAT (t) = floatformats; |
b79497cb PA |
4721 | |
4722 | if (floatformats != NULL) | |
4723 | { | |
4724 | size_t len = TYPE_LENGTH (t); | |
4725 | ||
4726 | gdb_assert (len >= floatformat_totalsize_bytes (floatformats[0])); | |
4727 | gdb_assert (len >= floatformat_totalsize_bytes (floatformats[1])); | |
4728 | } | |
4729 | ||
8da61cc4 DJ |
4730 | return t; |
4731 | } | |
4732 | ||
e9bb382b UW |
4733 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with GDBARCH. |
4734 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
5212577a | 4735 | |
27067745 | 4736 | struct type * |
e9bb382b | 4737 | arch_complex_type (struct gdbarch *gdbarch, |
695bfa52 | 4738 | const char *name, struct type *target_type) |
27067745 UW |
4739 | { |
4740 | struct type *t; | |
d8734c88 | 4741 | |
e9bb382b UW |
4742 | t = arch_type (gdbarch, TYPE_CODE_COMPLEX, |
4743 | 2 * TYPE_LENGTH (target_type), name); | |
27067745 UW |
4744 | TYPE_TARGET_TYPE (t) = target_type; |
4745 | return t; | |
4746 | } | |
4747 | ||
e9bb382b | 4748 | /* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH. |
eb90ce83 | 4749 | NAME is the type name. LENGTH is the size of the flag word in bytes. */ |
5212577a | 4750 | |
e9bb382b | 4751 | struct type * |
695bfa52 | 4752 | arch_flags_type (struct gdbarch *gdbarch, const char *name, int length) |
e9bb382b | 4753 | { |
81516450 | 4754 | int max_nfields = length * TARGET_CHAR_BIT; |
e9bb382b UW |
4755 | struct type *type; |
4756 | ||
4757 | type = arch_type (gdbarch, TYPE_CODE_FLAGS, length, name); | |
4758 | TYPE_UNSIGNED (type) = 1; | |
81516450 DE |
4759 | TYPE_NFIELDS (type) = 0; |
4760 | /* Pre-allocate enough space assuming every field is one bit. */ | |
224c3ddb | 4761 | TYPE_FIELDS (type) |
81516450 | 4762 | = (struct field *) TYPE_ZALLOC (type, max_nfields * sizeof (struct field)); |
e9bb382b UW |
4763 | |
4764 | return type; | |
4765 | } | |
4766 | ||
4767 | /* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
81516450 DE |
4768 | position BITPOS is called NAME. Pass NAME as "" for fields that |
4769 | should not be printed. */ | |
4770 | ||
4771 | void | |
4772 | append_flags_type_field (struct type *type, int start_bitpos, int nr_bits, | |
695bfa52 | 4773 | struct type *field_type, const char *name) |
81516450 DE |
4774 | { |
4775 | int type_bitsize = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
4776 | int field_nr = TYPE_NFIELDS (type); | |
4777 | ||
4778 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS); | |
4779 | gdb_assert (TYPE_NFIELDS (type) + 1 <= type_bitsize); | |
4780 | gdb_assert (start_bitpos >= 0 && start_bitpos < type_bitsize); | |
4781 | gdb_assert (nr_bits >= 1 && nr_bits <= type_bitsize); | |
4782 | gdb_assert (name != NULL); | |
4783 | ||
4784 | TYPE_FIELD_NAME (type, field_nr) = xstrdup (name); | |
4785 | TYPE_FIELD_TYPE (type, field_nr) = field_type; | |
4786 | SET_FIELD_BITPOS (TYPE_FIELD (type, field_nr), start_bitpos); | |
4787 | TYPE_FIELD_BITSIZE (type, field_nr) = nr_bits; | |
4788 | ++TYPE_NFIELDS (type); | |
4789 | } | |
4790 | ||
4791 | /* Special version of append_flags_type_field to add a flag field. | |
4792 | Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
e9bb382b | 4793 | position BITPOS is called NAME. */ |
5212577a | 4794 | |
e9bb382b | 4795 | void |
695bfa52 | 4796 | append_flags_type_flag (struct type *type, int bitpos, const char *name) |
e9bb382b | 4797 | { |
81516450 | 4798 | struct gdbarch *gdbarch = get_type_arch (type); |
e9bb382b | 4799 | |
81516450 DE |
4800 | append_flags_type_field (type, bitpos, 1, |
4801 | builtin_type (gdbarch)->builtin_bool, | |
4802 | name); | |
e9bb382b UW |
4803 | } |
4804 | ||
4805 | /* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as | |
4806 | specified by CODE) associated with GDBARCH. NAME is the type name. */ | |
5212577a | 4807 | |
e9bb382b | 4808 | struct type * |
695bfa52 TT |
4809 | arch_composite_type (struct gdbarch *gdbarch, const char *name, |
4810 | enum type_code code) | |
e9bb382b UW |
4811 | { |
4812 | struct type *t; | |
d8734c88 | 4813 | |
e9bb382b UW |
4814 | gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION); |
4815 | t = arch_type (gdbarch, code, 0, NULL); | |
4816 | TYPE_TAG_NAME (t) = name; | |
4817 | INIT_CPLUS_SPECIFIC (t); | |
4818 | return t; | |
4819 | } | |
4820 | ||
4821 | /* Add new field with name NAME and type FIELD to composite type T. | |
f5dff777 DJ |
4822 | Do not set the field's position or adjust the type's length; |
4823 | the caller should do so. Return the new field. */ | |
5212577a | 4824 | |
f5dff777 | 4825 | struct field * |
695bfa52 | 4826 | append_composite_type_field_raw (struct type *t, const char *name, |
f5dff777 | 4827 | struct type *field) |
e9bb382b UW |
4828 | { |
4829 | struct field *f; | |
d8734c88 | 4830 | |
e9bb382b | 4831 | TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; |
224c3ddb SM |
4832 | TYPE_FIELDS (t) = XRESIZEVEC (struct field, TYPE_FIELDS (t), |
4833 | TYPE_NFIELDS (t)); | |
e9bb382b UW |
4834 | f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); |
4835 | memset (f, 0, sizeof f[0]); | |
4836 | FIELD_TYPE (f[0]) = field; | |
4837 | FIELD_NAME (f[0]) = name; | |
f5dff777 DJ |
4838 | return f; |
4839 | } | |
4840 | ||
4841 | /* Add new field with name NAME and type FIELD to composite type T. | |
4842 | ALIGNMENT (if non-zero) specifies the minimum field alignment. */ | |
5212577a | 4843 | |
f5dff777 | 4844 | void |
695bfa52 | 4845 | append_composite_type_field_aligned (struct type *t, const char *name, |
f5dff777 DJ |
4846 | struct type *field, int alignment) |
4847 | { | |
4848 | struct field *f = append_composite_type_field_raw (t, name, field); | |
d8734c88 | 4849 | |
e9bb382b UW |
4850 | if (TYPE_CODE (t) == TYPE_CODE_UNION) |
4851 | { | |
4852 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) | |
4853 | TYPE_LENGTH (t) = TYPE_LENGTH (field); | |
4854 | } | |
4855 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
4856 | { | |
4857 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
4858 | if (TYPE_NFIELDS (t) > 1) | |
4859 | { | |
f41f5e61 PA |
4860 | SET_FIELD_BITPOS (f[0], |
4861 | (FIELD_BITPOS (f[-1]) | |
4862 | + (TYPE_LENGTH (FIELD_TYPE (f[-1])) | |
4863 | * TARGET_CHAR_BIT))); | |
e9bb382b UW |
4864 | |
4865 | if (alignment) | |
4866 | { | |
86c3c1fc AB |
4867 | int left; |
4868 | ||
4869 | alignment *= TARGET_CHAR_BIT; | |
4870 | left = FIELD_BITPOS (f[0]) % alignment; | |
d8734c88 | 4871 | |
e9bb382b UW |
4872 | if (left) |
4873 | { | |
f41f5e61 | 4874 | SET_FIELD_BITPOS (f[0], FIELD_BITPOS (f[0]) + (alignment - left)); |
86c3c1fc | 4875 | TYPE_LENGTH (t) += (alignment - left) / TARGET_CHAR_BIT; |
e9bb382b UW |
4876 | } |
4877 | } | |
4878 | } | |
4879 | } | |
4880 | } | |
4881 | ||
4882 | /* Add new field with name NAME and type FIELD to composite type T. */ | |
5212577a | 4883 | |
e9bb382b | 4884 | void |
695bfa52 | 4885 | append_composite_type_field (struct type *t, const char *name, |
e9bb382b UW |
4886 | struct type *field) |
4887 | { | |
4888 | append_composite_type_field_aligned (t, name, field, 0); | |
4889 | } | |
4890 | ||
000177f0 AC |
4891 | static struct gdbarch_data *gdbtypes_data; |
4892 | ||
4893 | const struct builtin_type * | |
4894 | builtin_type (struct gdbarch *gdbarch) | |
4895 | { | |
9a3c8263 | 4896 | return (const struct builtin_type *) gdbarch_data (gdbarch, gdbtypes_data); |
000177f0 AC |
4897 | } |
4898 | ||
4899 | static void * | |
4900 | gdbtypes_post_init (struct gdbarch *gdbarch) | |
4901 | { | |
4902 | struct builtin_type *builtin_type | |
4903 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); | |
4904 | ||
46bf5051 | 4905 | /* Basic types. */ |
e9bb382b UW |
4906 | builtin_type->builtin_void |
4907 | = arch_type (gdbarch, TYPE_CODE_VOID, 1, "void"); | |
4908 | builtin_type->builtin_char | |
4909 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
4910 | !gdbarch_char_signed (gdbarch), "char"); | |
4911 | builtin_type->builtin_signed_char | |
4912 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
4913 | 0, "signed char"); | |
4914 | builtin_type->builtin_unsigned_char | |
4915 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
4916 | 1, "unsigned char"); | |
4917 | builtin_type->builtin_short | |
4918 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
4919 | 0, "short"); | |
4920 | builtin_type->builtin_unsigned_short | |
4921 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
4922 | 1, "unsigned short"); | |
4923 | builtin_type->builtin_int | |
4924 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
4925 | 0, "int"); | |
4926 | builtin_type->builtin_unsigned_int | |
4927 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
4928 | 1, "unsigned int"); | |
4929 | builtin_type->builtin_long | |
4930 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
4931 | 0, "long"); | |
4932 | builtin_type->builtin_unsigned_long | |
4933 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
4934 | 1, "unsigned long"); | |
4935 | builtin_type->builtin_long_long | |
4936 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
4937 | 0, "long long"); | |
4938 | builtin_type->builtin_unsigned_long_long | |
4939 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
4940 | 1, "unsigned long long"); | |
70bd8e24 | 4941 | builtin_type->builtin_float |
e9bb382b | 4942 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), |
27067745 | 4943 | "float", gdbarch_float_format (gdbarch)); |
70bd8e24 | 4944 | builtin_type->builtin_double |
e9bb382b | 4945 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), |
27067745 | 4946 | "double", gdbarch_double_format (gdbarch)); |
70bd8e24 | 4947 | builtin_type->builtin_long_double |
e9bb382b | 4948 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), |
27067745 | 4949 | "long double", gdbarch_long_double_format (gdbarch)); |
70bd8e24 | 4950 | builtin_type->builtin_complex |
e9bb382b UW |
4951 | = arch_complex_type (gdbarch, "complex", |
4952 | builtin_type->builtin_float); | |
70bd8e24 | 4953 | builtin_type->builtin_double_complex |
e9bb382b UW |
4954 | = arch_complex_type (gdbarch, "double complex", |
4955 | builtin_type->builtin_double); | |
4956 | builtin_type->builtin_string | |
4957 | = arch_type (gdbarch, TYPE_CODE_STRING, 1, "string"); | |
4958 | builtin_type->builtin_bool | |
4959 | = arch_type (gdbarch, TYPE_CODE_BOOL, 1, "bool"); | |
000177f0 | 4960 | |
7678ef8f TJB |
4961 | /* The following three are about decimal floating point types, which |
4962 | are 32-bits, 64-bits and 128-bits respectively. */ | |
4963 | builtin_type->builtin_decfloat | |
e9bb382b | 4964 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 32 / 8, "_Decimal32"); |
7678ef8f | 4965 | builtin_type->builtin_decdouble |
e9bb382b | 4966 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 64 / 8, "_Decimal64"); |
7678ef8f | 4967 | builtin_type->builtin_declong |
e9bb382b | 4968 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 128 / 8, "_Decimal128"); |
7678ef8f | 4969 | |
69feb676 | 4970 | /* "True" character types. */ |
e9bb382b UW |
4971 | builtin_type->builtin_true_char |
4972 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 0, "true character"); | |
4973 | builtin_type->builtin_true_unsigned_char | |
4974 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 1, "true character"); | |
69feb676 | 4975 | |
df4df182 | 4976 | /* Fixed-size integer types. */ |
e9bb382b UW |
4977 | builtin_type->builtin_int0 |
4978 | = arch_integer_type (gdbarch, 0, 0, "int0_t"); | |
4979 | builtin_type->builtin_int8 | |
4980 | = arch_integer_type (gdbarch, 8, 0, "int8_t"); | |
4981 | builtin_type->builtin_uint8 | |
4982 | = arch_integer_type (gdbarch, 8, 1, "uint8_t"); | |
4983 | builtin_type->builtin_int16 | |
4984 | = arch_integer_type (gdbarch, 16, 0, "int16_t"); | |
4985 | builtin_type->builtin_uint16 | |
4986 | = arch_integer_type (gdbarch, 16, 1, "uint16_t"); | |
4987 | builtin_type->builtin_int32 | |
4988 | = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
4989 | builtin_type->builtin_uint32 | |
4990 | = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
4991 | builtin_type->builtin_int64 | |
4992 | = arch_integer_type (gdbarch, 64, 0, "int64_t"); | |
4993 | builtin_type->builtin_uint64 | |
4994 | = arch_integer_type (gdbarch, 64, 1, "uint64_t"); | |
4995 | builtin_type->builtin_int128 | |
4996 | = arch_integer_type (gdbarch, 128, 0, "int128_t"); | |
4997 | builtin_type->builtin_uint128 | |
4998 | = arch_integer_type (gdbarch, 128, 1, "uint128_t"); | |
2844d6b5 KW |
4999 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_int8) |= |
5000 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
5001 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_uint8) |= | |
5002 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
df4df182 | 5003 | |
9a22f0d0 PM |
5004 | /* Wide character types. */ |
5005 | builtin_type->builtin_char16 | |
5006 | = arch_integer_type (gdbarch, 16, 0, "char16_t"); | |
5007 | builtin_type->builtin_char32 | |
5008 | = arch_integer_type (gdbarch, 32, 0, "char32_t"); | |
5009 | ||
5010 | ||
46bf5051 | 5011 | /* Default data/code pointer types. */ |
e9bb382b UW |
5012 | builtin_type->builtin_data_ptr |
5013 | = lookup_pointer_type (builtin_type->builtin_void); | |
5014 | builtin_type->builtin_func_ptr | |
5015 | = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
0875794a JK |
5016 | builtin_type->builtin_func_func |
5017 | = lookup_function_type (builtin_type->builtin_func_ptr); | |
46bf5051 | 5018 | |
78267919 | 5019 | /* This type represents a GDB internal function. */ |
e9bb382b UW |
5020 | builtin_type->internal_fn |
5021 | = arch_type (gdbarch, TYPE_CODE_INTERNAL_FUNCTION, 0, | |
5022 | "<internal function>"); | |
78267919 | 5023 | |
e81e7f5e SC |
5024 | /* This type represents an xmethod. */ |
5025 | builtin_type->xmethod | |
5026 | = arch_type (gdbarch, TYPE_CODE_XMETHOD, 0, "<xmethod>"); | |
5027 | ||
46bf5051 UW |
5028 | return builtin_type; |
5029 | } | |
5030 | ||
46bf5051 UW |
5031 | /* This set of objfile-based types is intended to be used by symbol |
5032 | readers as basic types. */ | |
5033 | ||
5034 | static const struct objfile_data *objfile_type_data; | |
5035 | ||
5036 | const struct objfile_type * | |
5037 | objfile_type (struct objfile *objfile) | |
5038 | { | |
5039 | struct gdbarch *gdbarch; | |
5040 | struct objfile_type *objfile_type | |
9a3c8263 | 5041 | = (struct objfile_type *) objfile_data (objfile, objfile_type_data); |
46bf5051 UW |
5042 | |
5043 | if (objfile_type) | |
5044 | return objfile_type; | |
5045 | ||
5046 | objfile_type = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
5047 | 1, struct objfile_type); | |
5048 | ||
5049 | /* Use the objfile architecture to determine basic type properties. */ | |
5050 | gdbarch = get_objfile_arch (objfile); | |
5051 | ||
5052 | /* Basic types. */ | |
5053 | objfile_type->builtin_void | |
5054 | = init_type (TYPE_CODE_VOID, 1, | |
5055 | 0, | |
5056 | "void", objfile); | |
5057 | ||
5058 | objfile_type->builtin_char | |
5059 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
5060 | (TYPE_FLAG_NOSIGN | |
5061 | | (gdbarch_char_signed (gdbarch) ? 0 : TYPE_FLAG_UNSIGNED)), | |
5062 | "char", objfile); | |
5063 | objfile_type->builtin_signed_char | |
5064 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
5065 | 0, | |
5066 | "signed char", objfile); | |
5067 | objfile_type->builtin_unsigned_char | |
5068 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
5069 | TYPE_FLAG_UNSIGNED, | |
5070 | "unsigned char", objfile); | |
5071 | objfile_type->builtin_short | |
5072 | = init_type (TYPE_CODE_INT, | |
5073 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
5074 | 0, "short", objfile); | |
5075 | objfile_type->builtin_unsigned_short | |
5076 | = init_type (TYPE_CODE_INT, | |
5077 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
5078 | TYPE_FLAG_UNSIGNED, "unsigned short", objfile); | |
5079 | objfile_type->builtin_int | |
5080 | = init_type (TYPE_CODE_INT, | |
5081 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
5082 | 0, "int", objfile); | |
5083 | objfile_type->builtin_unsigned_int | |
5084 | = init_type (TYPE_CODE_INT, | |
5085 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
5086 | TYPE_FLAG_UNSIGNED, "unsigned int", objfile); | |
5087 | objfile_type->builtin_long | |
5088 | = init_type (TYPE_CODE_INT, | |
5089 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
5090 | 0, "long", objfile); | |
5091 | objfile_type->builtin_unsigned_long | |
5092 | = init_type (TYPE_CODE_INT, | |
5093 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
5094 | TYPE_FLAG_UNSIGNED, "unsigned long", objfile); | |
5095 | objfile_type->builtin_long_long | |
5096 | = init_type (TYPE_CODE_INT, | |
5097 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
5098 | 0, "long long", objfile); | |
5099 | objfile_type->builtin_unsigned_long_long | |
5100 | = init_type (TYPE_CODE_INT, | |
5101 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
5102 | TYPE_FLAG_UNSIGNED, "unsigned long long", objfile); | |
5103 | ||
5104 | objfile_type->builtin_float | |
5105 | = init_type (TYPE_CODE_FLT, | |
5106 | gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, | |
5107 | 0, "float", objfile); | |
5108 | TYPE_FLOATFORMAT (objfile_type->builtin_float) | |
5109 | = gdbarch_float_format (gdbarch); | |
5110 | objfile_type->builtin_double | |
5111 | = init_type (TYPE_CODE_FLT, | |
5112 | gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
5113 | 0, "double", objfile); | |
5114 | TYPE_FLOATFORMAT (objfile_type->builtin_double) | |
5115 | = gdbarch_double_format (gdbarch); | |
5116 | objfile_type->builtin_long_double | |
5117 | = init_type (TYPE_CODE_FLT, | |
5118 | gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
5119 | 0, "long double", objfile); | |
5120 | TYPE_FLOATFORMAT (objfile_type->builtin_long_double) | |
5121 | = gdbarch_long_double_format (gdbarch); | |
5122 | ||
5123 | /* This type represents a type that was unrecognized in symbol read-in. */ | |
5124 | objfile_type->builtin_error | |
5125 | = init_type (TYPE_CODE_ERROR, 0, 0, "<unknown type>", objfile); | |
5126 | ||
5127 | /* The following set of types is used for symbols with no | |
5128 | debug information. */ | |
5129 | objfile_type->nodebug_text_symbol | |
5130 | = init_type (TYPE_CODE_FUNC, 1, 0, | |
5131 | "<text variable, no debug info>", objfile); | |
5132 | TYPE_TARGET_TYPE (objfile_type->nodebug_text_symbol) | |
5133 | = objfile_type->builtin_int; | |
0875794a JK |
5134 | objfile_type->nodebug_text_gnu_ifunc_symbol |
5135 | = init_type (TYPE_CODE_FUNC, 1, TYPE_FLAG_GNU_IFUNC, | |
5136 | "<text gnu-indirect-function variable, no debug info>", | |
5137 | objfile); | |
5138 | TYPE_TARGET_TYPE (objfile_type->nodebug_text_gnu_ifunc_symbol) | |
5139 | = objfile_type->nodebug_text_symbol; | |
5140 | objfile_type->nodebug_got_plt_symbol | |
5141 | = init_type (TYPE_CODE_PTR, gdbarch_addr_bit (gdbarch) / 8, 0, | |
5142 | "<text from jump slot in .got.plt, no debug info>", | |
5143 | objfile); | |
5144 | TYPE_TARGET_TYPE (objfile_type->nodebug_got_plt_symbol) | |
5145 | = objfile_type->nodebug_text_symbol; | |
46bf5051 UW |
5146 | objfile_type->nodebug_data_symbol |
5147 | = init_type (TYPE_CODE_INT, | |
5148 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
5149 | "<data variable, no debug info>", objfile); | |
5150 | objfile_type->nodebug_unknown_symbol | |
5151 | = init_type (TYPE_CODE_INT, 1, 0, | |
5152 | "<variable (not text or data), no debug info>", objfile); | |
5153 | objfile_type->nodebug_tls_symbol | |
5154 | = init_type (TYPE_CODE_INT, | |
5155 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
5156 | "<thread local variable, no debug info>", objfile); | |
000177f0 AC |
5157 | |
5158 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
0a7cfe2c | 5159 | the same. |
000177f0 AC |
5160 | |
5161 | The upshot is: | |
5162 | - gdb's `struct type' always describes the target's | |
5163 | representation. | |
5164 | - gdb's `struct value' objects should always hold values in | |
5165 | target form. | |
5166 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
5167 | address space that the assembler and linker work with. Thus, | |
5168 | since target_read_memory takes a CORE_ADDR as an argument, it | |
5169 | can access any memory on the target, even if the processor has | |
5170 | separate code and data address spaces. | |
5171 | ||
46bf5051 UW |
5172 | In this context, objfile_type->builtin_core_addr is a bit odd: |
5173 | it's a target type for a value the target will never see. It's | |
5174 | only used to hold the values of (typeless) linker symbols, which | |
5175 | are indeed in the unified virtual address space. */ | |
000177f0 | 5176 | |
46bf5051 UW |
5177 | objfile_type->builtin_core_addr |
5178 | = init_type (TYPE_CODE_INT, | |
5179 | gdbarch_addr_bit (gdbarch) / 8, | |
5180 | TYPE_FLAG_UNSIGNED, "__CORE_ADDR", objfile); | |
64c50499 | 5181 | |
46bf5051 UW |
5182 | set_objfile_data (objfile, objfile_type_data, objfile_type); |
5183 | return objfile_type; | |
000177f0 AC |
5184 | } |
5185 | ||
5212577a | 5186 | extern initialize_file_ftype _initialize_gdbtypes; |
46bf5051 | 5187 | |
c906108c | 5188 | void |
fba45db2 | 5189 | _initialize_gdbtypes (void) |
c906108c | 5190 | { |
5674de60 | 5191 | gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
46bf5051 | 5192 | objfile_type_data = register_objfile_data (); |
5674de60 | 5193 | |
ccce17b0 YQ |
5194 | add_setshow_zuinteger_cmd ("overload", no_class, &overload_debug, |
5195 | _("Set debugging of C++ overloading."), | |
5196 | _("Show debugging of C++ overloading."), | |
5197 | _("When enabled, ranking of the " | |
5198 | "functions is displayed."), | |
5199 | NULL, | |
5200 | show_overload_debug, | |
5201 | &setdebuglist, &showdebuglist); | |
5674de60 | 5202 | |
7ba81444 | 5203 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 | 5204 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3e43a32a MS |
5205 | &opaque_type_resolution, |
5206 | _("Set resolution of opaque struct/class/union" | |
5207 | " types (if set before loading symbols)."), | |
5208 | _("Show resolution of opaque struct/class/union" | |
5209 | " types (if set before loading symbols)."), | |
5210 | NULL, NULL, | |
5674de60 UW |
5211 | show_opaque_type_resolution, |
5212 | &setlist, &showlist); | |
a451cb65 KS |
5213 | |
5214 | /* Add an option to permit non-strict type checking. */ | |
5215 | add_setshow_boolean_cmd ("type", class_support, | |
5216 | &strict_type_checking, | |
5217 | _("Set strict type checking."), | |
5218 | _("Show strict type checking."), | |
5219 | NULL, NULL, | |
5220 | show_strict_type_checking, | |
5221 | &setchecklist, &showchecklist); | |
c906108c | 5222 | } |