Commit | Line | Data |
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c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
4f2aea11 | 2 | |
e2882c85 | 3 | Copyright (C) 1992-2018 Free Software Foundation, Inc. |
4f2aea11 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support, using pieces from other GDB modules. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
c906108c SS |
23 | #include "bfd.h" |
24 | #include "symtab.h" | |
25 | #include "symfile.h" | |
26 | #include "objfiles.h" | |
27 | #include "gdbtypes.h" | |
28 | #include "expression.h" | |
29 | #include "language.h" | |
30 | #include "target.h" | |
31 | #include "value.h" | |
32 | #include "demangle.h" | |
33 | #include "complaints.h" | |
34 | #include "gdbcmd.h" | |
015a42b4 | 35 | #include "cp-abi.h" |
ae5a43e0 | 36 | #include "hashtab.h" |
8de20a37 | 37 | #include "cp-support.h" |
ca092b61 DE |
38 | #include "bcache.h" |
39 | #include "dwarf2loc.h" | |
80180f79 | 40 | #include "gdbcore.h" |
1841ee5d | 41 | #include "floatformat.h" |
ac3aafc7 | 42 | |
6403aeea SW |
43 | /* Initialize BADNESS constants. */ |
44 | ||
a9d5ef47 | 45 | const struct rank LENGTH_MISMATCH_BADNESS = {100,0}; |
6403aeea | 46 | |
a9d5ef47 SW |
47 | const struct rank TOO_FEW_PARAMS_BADNESS = {100,0}; |
48 | const struct rank INCOMPATIBLE_TYPE_BADNESS = {100,0}; | |
6403aeea | 49 | |
a9d5ef47 | 50 | const struct rank EXACT_MATCH_BADNESS = {0,0}; |
6403aeea | 51 | |
a9d5ef47 SW |
52 | const struct rank INTEGER_PROMOTION_BADNESS = {1,0}; |
53 | const struct rank FLOAT_PROMOTION_BADNESS = {1,0}; | |
54 | const struct rank BASE_PTR_CONVERSION_BADNESS = {1,0}; | |
e15c3eb4 | 55 | const struct rank CV_CONVERSION_BADNESS = {1, 0}; |
a9d5ef47 SW |
56 | const struct rank INTEGER_CONVERSION_BADNESS = {2,0}; |
57 | const struct rank FLOAT_CONVERSION_BADNESS = {2,0}; | |
58 | const struct rank INT_FLOAT_CONVERSION_BADNESS = {2,0}; | |
59 | const struct rank VOID_PTR_CONVERSION_BADNESS = {2,0}; | |
5b4f6e25 | 60 | const struct rank BOOL_CONVERSION_BADNESS = {3,0}; |
a9d5ef47 SW |
61 | const struct rank BASE_CONVERSION_BADNESS = {2,0}; |
62 | const struct rank REFERENCE_CONVERSION_BADNESS = {2,0}; | |
da096638 | 63 | const struct rank NULL_POINTER_CONVERSION_BADNESS = {2,0}; |
a9d5ef47 | 64 | const struct rank NS_POINTER_CONVERSION_BADNESS = {10,0}; |
a451cb65 | 65 | const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS = {3,0}; |
6403aeea | 66 | |
8da61cc4 | 67 | /* Floatformat pairs. */ |
f9e9243a UW |
68 | const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN] = { |
69 | &floatformat_ieee_half_big, | |
70 | &floatformat_ieee_half_little | |
71 | }; | |
8da61cc4 DJ |
72 | const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { |
73 | &floatformat_ieee_single_big, | |
74 | &floatformat_ieee_single_little | |
75 | }; | |
76 | const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { | |
77 | &floatformat_ieee_double_big, | |
78 | &floatformat_ieee_double_little | |
79 | }; | |
80 | const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { | |
81 | &floatformat_ieee_double_big, | |
82 | &floatformat_ieee_double_littlebyte_bigword | |
83 | }; | |
84 | const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { | |
85 | &floatformat_i387_ext, | |
86 | &floatformat_i387_ext | |
87 | }; | |
88 | const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { | |
89 | &floatformat_m68881_ext, | |
90 | &floatformat_m68881_ext | |
91 | }; | |
92 | const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { | |
93 | &floatformat_arm_ext_big, | |
94 | &floatformat_arm_ext_littlebyte_bigword | |
95 | }; | |
96 | const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { | |
97 | &floatformat_ia64_spill_big, | |
98 | &floatformat_ia64_spill_little | |
99 | }; | |
100 | const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = { | |
101 | &floatformat_ia64_quad_big, | |
102 | &floatformat_ia64_quad_little | |
103 | }; | |
104 | const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { | |
105 | &floatformat_vax_f, | |
106 | &floatformat_vax_f | |
107 | }; | |
108 | const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { | |
109 | &floatformat_vax_d, | |
110 | &floatformat_vax_d | |
111 | }; | |
b14d30e1 | 112 | const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { |
f5aee5ee AM |
113 | &floatformat_ibm_long_double_big, |
114 | &floatformat_ibm_long_double_little | |
b14d30e1 | 115 | }; |
8da61cc4 | 116 | |
2873700e KS |
117 | /* Should opaque types be resolved? */ |
118 | ||
119 | static int opaque_type_resolution = 1; | |
120 | ||
121 | /* A flag to enable printing of debugging information of C++ | |
122 | overloading. */ | |
123 | ||
124 | unsigned int overload_debug = 0; | |
125 | ||
a451cb65 KS |
126 | /* A flag to enable strict type checking. */ |
127 | ||
128 | static int strict_type_checking = 1; | |
129 | ||
2873700e | 130 | /* A function to show whether opaque types are resolved. */ |
5212577a | 131 | |
920d2a44 AC |
132 | static void |
133 | show_opaque_type_resolution (struct ui_file *file, int from_tty, | |
7ba81444 MS |
134 | struct cmd_list_element *c, |
135 | const char *value) | |
920d2a44 | 136 | { |
3e43a32a MS |
137 | fprintf_filtered (file, _("Resolution of opaque struct/class/union types " |
138 | "(if set before loading symbols) is %s.\n"), | |
920d2a44 AC |
139 | value); |
140 | } | |
141 | ||
2873700e | 142 | /* A function to show whether C++ overload debugging is enabled. */ |
5212577a | 143 | |
920d2a44 AC |
144 | static void |
145 | show_overload_debug (struct ui_file *file, int from_tty, | |
146 | struct cmd_list_element *c, const char *value) | |
147 | { | |
7ba81444 MS |
148 | fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"), |
149 | value); | |
920d2a44 | 150 | } |
c906108c | 151 | |
a451cb65 KS |
152 | /* A function to show the status of strict type checking. */ |
153 | ||
154 | static void | |
155 | show_strict_type_checking (struct ui_file *file, int from_tty, | |
156 | struct cmd_list_element *c, const char *value) | |
157 | { | |
158 | fprintf_filtered (file, _("Strict type checking is %s.\n"), value); | |
159 | } | |
160 | ||
5212577a | 161 | \f |
e9bb382b UW |
162 | /* Allocate a new OBJFILE-associated type structure and fill it |
163 | with some defaults. Space for the type structure is allocated | |
164 | on the objfile's objfile_obstack. */ | |
c906108c SS |
165 | |
166 | struct type * | |
fba45db2 | 167 | alloc_type (struct objfile *objfile) |
c906108c | 168 | { |
52f0bd74 | 169 | struct type *type; |
c906108c | 170 | |
e9bb382b UW |
171 | gdb_assert (objfile != NULL); |
172 | ||
7ba81444 | 173 | /* Alloc the structure and start off with all fields zeroed. */ |
e9bb382b UW |
174 | type = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct type); |
175 | TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (&objfile->objfile_obstack, | |
176 | struct main_type); | |
177 | OBJSTAT (objfile, n_types++); | |
c906108c | 178 | |
e9bb382b UW |
179 | TYPE_OBJFILE_OWNED (type) = 1; |
180 | TYPE_OWNER (type).objfile = objfile; | |
c906108c | 181 | |
7ba81444 | 182 | /* Initialize the fields that might not be zero. */ |
c906108c SS |
183 | |
184 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
2fdde8f8 | 185 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
c906108c | 186 | |
c16abbde | 187 | return type; |
c906108c SS |
188 | } |
189 | ||
e9bb382b UW |
190 | /* Allocate a new GDBARCH-associated type structure and fill it |
191 | with some defaults. Space for the type structure is allocated | |
8f57eec2 | 192 | on the obstack associated with GDBARCH. */ |
e9bb382b UW |
193 | |
194 | struct type * | |
195 | alloc_type_arch (struct gdbarch *gdbarch) | |
196 | { | |
197 | struct type *type; | |
198 | ||
199 | gdb_assert (gdbarch != NULL); | |
200 | ||
201 | /* Alloc the structure and start off with all fields zeroed. */ | |
202 | ||
8f57eec2 PP |
203 | type = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct type); |
204 | TYPE_MAIN_TYPE (type) = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct main_type); | |
e9bb382b UW |
205 | |
206 | TYPE_OBJFILE_OWNED (type) = 0; | |
207 | TYPE_OWNER (type).gdbarch = gdbarch; | |
208 | ||
209 | /* Initialize the fields that might not be zero. */ | |
210 | ||
211 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
e9bb382b UW |
212 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
213 | ||
214 | return type; | |
215 | } | |
216 | ||
217 | /* If TYPE is objfile-associated, allocate a new type structure | |
218 | associated with the same objfile. If TYPE is gdbarch-associated, | |
219 | allocate a new type structure associated with the same gdbarch. */ | |
220 | ||
221 | struct type * | |
222 | alloc_type_copy (const struct type *type) | |
223 | { | |
224 | if (TYPE_OBJFILE_OWNED (type)) | |
225 | return alloc_type (TYPE_OWNER (type).objfile); | |
226 | else | |
227 | return alloc_type_arch (TYPE_OWNER (type).gdbarch); | |
228 | } | |
229 | ||
230 | /* If TYPE is gdbarch-associated, return that architecture. | |
231 | If TYPE is objfile-associated, return that objfile's architecture. */ | |
232 | ||
233 | struct gdbarch * | |
234 | get_type_arch (const struct type *type) | |
235 | { | |
236 | if (TYPE_OBJFILE_OWNED (type)) | |
237 | return get_objfile_arch (TYPE_OWNER (type).objfile); | |
238 | else | |
239 | return TYPE_OWNER (type).gdbarch; | |
240 | } | |
241 | ||
99ad9427 YQ |
242 | /* See gdbtypes.h. */ |
243 | ||
244 | struct type * | |
245 | get_target_type (struct type *type) | |
246 | { | |
247 | if (type != NULL) | |
248 | { | |
249 | type = TYPE_TARGET_TYPE (type); | |
250 | if (type != NULL) | |
251 | type = check_typedef (type); | |
252 | } | |
253 | ||
254 | return type; | |
255 | } | |
256 | ||
2e056931 SM |
257 | /* See gdbtypes.h. */ |
258 | ||
259 | unsigned int | |
260 | type_length_units (struct type *type) | |
261 | { | |
262 | struct gdbarch *arch = get_type_arch (type); | |
263 | int unit_size = gdbarch_addressable_memory_unit_size (arch); | |
264 | ||
265 | return TYPE_LENGTH (type) / unit_size; | |
266 | } | |
267 | ||
2fdde8f8 DJ |
268 | /* Alloc a new type instance structure, fill it with some defaults, |
269 | and point it at OLDTYPE. Allocate the new type instance from the | |
270 | same place as OLDTYPE. */ | |
271 | ||
272 | static struct type * | |
273 | alloc_type_instance (struct type *oldtype) | |
274 | { | |
275 | struct type *type; | |
276 | ||
277 | /* Allocate the structure. */ | |
278 | ||
e9bb382b | 279 | if (! TYPE_OBJFILE_OWNED (oldtype)) |
41bf6aca | 280 | type = XCNEW (struct type); |
2fdde8f8 | 281 | else |
1deafd4e PA |
282 | type = OBSTACK_ZALLOC (&TYPE_OBJFILE (oldtype)->objfile_obstack, |
283 | struct type); | |
284 | ||
2fdde8f8 DJ |
285 | TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype); |
286 | ||
287 | TYPE_CHAIN (type) = type; /* Chain back to itself for now. */ | |
288 | ||
c16abbde | 289 | return type; |
2fdde8f8 DJ |
290 | } |
291 | ||
292 | /* Clear all remnants of the previous type at TYPE, in preparation for | |
e9bb382b | 293 | replacing it with something else. Preserve owner information. */ |
5212577a | 294 | |
2fdde8f8 DJ |
295 | static void |
296 | smash_type (struct type *type) | |
297 | { | |
e9bb382b UW |
298 | int objfile_owned = TYPE_OBJFILE_OWNED (type); |
299 | union type_owner owner = TYPE_OWNER (type); | |
300 | ||
2fdde8f8 DJ |
301 | memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
302 | ||
e9bb382b UW |
303 | /* Restore owner information. */ |
304 | TYPE_OBJFILE_OWNED (type) = objfile_owned; | |
305 | TYPE_OWNER (type) = owner; | |
306 | ||
2fdde8f8 DJ |
307 | /* For now, delete the rings. */ |
308 | TYPE_CHAIN (type) = type; | |
309 | ||
310 | /* For now, leave the pointer/reference types alone. */ | |
311 | } | |
312 | ||
c906108c SS |
313 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
314 | to a pointer to memory where the pointer type should be stored. | |
315 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
316 | We allocate new memory if needed. */ | |
317 | ||
318 | struct type * | |
fba45db2 | 319 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 320 | { |
52f0bd74 | 321 | struct type *ntype; /* New type */ |
053cb41b | 322 | struct type *chain; |
c906108c SS |
323 | |
324 | ntype = TYPE_POINTER_TYPE (type); | |
325 | ||
c5aa993b | 326 | if (ntype) |
c906108c | 327 | { |
c5aa993b | 328 | if (typeptr == 0) |
7ba81444 MS |
329 | return ntype; /* Don't care about alloc, |
330 | and have new type. */ | |
c906108c | 331 | else if (*typeptr == 0) |
c5aa993b | 332 | { |
7ba81444 | 333 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 334 | return ntype; |
c5aa993b | 335 | } |
c906108c SS |
336 | } |
337 | ||
338 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
339 | { | |
e9bb382b | 340 | ntype = alloc_type_copy (type); |
c906108c SS |
341 | if (typeptr) |
342 | *typeptr = ntype; | |
343 | } | |
7ba81444 | 344 | else /* We have storage, but need to reset it. */ |
c906108c SS |
345 | { |
346 | ntype = *typeptr; | |
053cb41b | 347 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 348 | smash_type (ntype); |
053cb41b | 349 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
350 | } |
351 | ||
352 | TYPE_TARGET_TYPE (ntype) = type; | |
353 | TYPE_POINTER_TYPE (type) = ntype; | |
354 | ||
5212577a | 355 | /* FIXME! Assumes the machine has only one representation for pointers! */ |
c906108c | 356 | |
50810684 UW |
357 | TYPE_LENGTH (ntype) |
358 | = gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c SS |
359 | TYPE_CODE (ntype) = TYPE_CODE_PTR; |
360 | ||
67b2adb2 | 361 | /* Mark pointers as unsigned. The target converts between pointers |
76e71323 | 362 | and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and |
7ba81444 | 363 | gdbarch_address_to_pointer. */ |
876cecd0 | 364 | TYPE_UNSIGNED (ntype) = 1; |
c5aa993b | 365 | |
053cb41b JB |
366 | /* Update the length of all the other variants of this type. */ |
367 | chain = TYPE_CHAIN (ntype); | |
368 | while (chain != ntype) | |
369 | { | |
370 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
371 | chain = TYPE_CHAIN (chain); | |
372 | } | |
373 | ||
c906108c SS |
374 | return ntype; |
375 | } | |
376 | ||
377 | /* Given a type TYPE, return a type of pointers to that type. | |
378 | May need to construct such a type if this is the first use. */ | |
379 | ||
380 | struct type * | |
fba45db2 | 381 | lookup_pointer_type (struct type *type) |
c906108c | 382 | { |
c5aa993b | 383 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
384 | } |
385 | ||
7ba81444 MS |
386 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, |
387 | points to a pointer to memory where the reference type should be | |
388 | stored. If *TYPEPTR is zero, update it to point to the reference | |
3b224330 AV |
389 | type we return. We allocate new memory if needed. REFCODE denotes |
390 | the kind of reference type to lookup (lvalue or rvalue reference). */ | |
c906108c SS |
391 | |
392 | struct type * | |
3b224330 AV |
393 | make_reference_type (struct type *type, struct type **typeptr, |
394 | enum type_code refcode) | |
c906108c | 395 | { |
52f0bd74 | 396 | struct type *ntype; /* New type */ |
3b224330 | 397 | struct type **reftype; |
1e98b326 | 398 | struct type *chain; |
c906108c | 399 | |
3b224330 AV |
400 | gdb_assert (refcode == TYPE_CODE_REF || refcode == TYPE_CODE_RVALUE_REF); |
401 | ||
402 | ntype = (refcode == TYPE_CODE_REF ? TYPE_REFERENCE_TYPE (type) | |
403 | : TYPE_RVALUE_REFERENCE_TYPE (type)); | |
c906108c | 404 | |
c5aa993b | 405 | if (ntype) |
c906108c | 406 | { |
c5aa993b | 407 | if (typeptr == 0) |
7ba81444 MS |
408 | return ntype; /* Don't care about alloc, |
409 | and have new type. */ | |
c906108c | 410 | else if (*typeptr == 0) |
c5aa993b | 411 | { |
7ba81444 | 412 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 413 | return ntype; |
c5aa993b | 414 | } |
c906108c SS |
415 | } |
416 | ||
417 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
418 | { | |
e9bb382b | 419 | ntype = alloc_type_copy (type); |
c906108c SS |
420 | if (typeptr) |
421 | *typeptr = ntype; | |
422 | } | |
7ba81444 | 423 | else /* We have storage, but need to reset it. */ |
c906108c SS |
424 | { |
425 | ntype = *typeptr; | |
1e98b326 | 426 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 427 | smash_type (ntype); |
1e98b326 | 428 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
429 | } |
430 | ||
431 | TYPE_TARGET_TYPE (ntype) = type; | |
3b224330 AV |
432 | reftype = (refcode == TYPE_CODE_REF ? &TYPE_REFERENCE_TYPE (type) |
433 | : &TYPE_RVALUE_REFERENCE_TYPE (type)); | |
434 | ||
435 | *reftype = ntype; | |
c906108c | 436 | |
7ba81444 MS |
437 | /* FIXME! Assume the machine has only one representation for |
438 | references, and that it matches the (only) representation for | |
439 | pointers! */ | |
c906108c | 440 | |
50810684 UW |
441 | TYPE_LENGTH (ntype) = |
442 | gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
3b224330 | 443 | TYPE_CODE (ntype) = refcode; |
c5aa993b | 444 | |
3b224330 | 445 | *reftype = ntype; |
c906108c | 446 | |
1e98b326 JB |
447 | /* Update the length of all the other variants of this type. */ |
448 | chain = TYPE_CHAIN (ntype); | |
449 | while (chain != ntype) | |
450 | { | |
451 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
452 | chain = TYPE_CHAIN (chain); | |
453 | } | |
454 | ||
c906108c SS |
455 | return ntype; |
456 | } | |
457 | ||
7ba81444 MS |
458 | /* Same as above, but caller doesn't care about memory allocation |
459 | details. */ | |
c906108c SS |
460 | |
461 | struct type * | |
3b224330 AV |
462 | lookup_reference_type (struct type *type, enum type_code refcode) |
463 | { | |
464 | return make_reference_type (type, (struct type **) 0, refcode); | |
465 | } | |
466 | ||
467 | /* Lookup the lvalue reference type for the type TYPE. */ | |
468 | ||
469 | struct type * | |
470 | lookup_lvalue_reference_type (struct type *type) | |
471 | { | |
472 | return lookup_reference_type (type, TYPE_CODE_REF); | |
473 | } | |
474 | ||
475 | /* Lookup the rvalue reference type for the type TYPE. */ | |
476 | ||
477 | struct type * | |
478 | lookup_rvalue_reference_type (struct type *type) | |
c906108c | 479 | { |
3b224330 | 480 | return lookup_reference_type (type, TYPE_CODE_RVALUE_REF); |
c906108c SS |
481 | } |
482 | ||
7ba81444 MS |
483 | /* Lookup a function type that returns type TYPE. TYPEPTR, if |
484 | nonzero, points to a pointer to memory where the function type | |
485 | should be stored. If *TYPEPTR is zero, update it to point to the | |
0c8b41f1 | 486 | function type we return. We allocate new memory if needed. */ |
c906108c SS |
487 | |
488 | struct type * | |
0c8b41f1 | 489 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 490 | { |
52f0bd74 | 491 | struct type *ntype; /* New type */ |
c906108c SS |
492 | |
493 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
494 | { | |
e9bb382b | 495 | ntype = alloc_type_copy (type); |
c906108c SS |
496 | if (typeptr) |
497 | *typeptr = ntype; | |
498 | } | |
7ba81444 | 499 | else /* We have storage, but need to reset it. */ |
c906108c SS |
500 | { |
501 | ntype = *typeptr; | |
2fdde8f8 | 502 | smash_type (ntype); |
c906108c SS |
503 | } |
504 | ||
505 | TYPE_TARGET_TYPE (ntype) = type; | |
506 | ||
507 | TYPE_LENGTH (ntype) = 1; | |
508 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
c5aa993b | 509 | |
b6cdc2c1 JK |
510 | INIT_FUNC_SPECIFIC (ntype); |
511 | ||
c906108c SS |
512 | return ntype; |
513 | } | |
514 | ||
c906108c SS |
515 | /* Given a type TYPE, return a type of functions that return that type. |
516 | May need to construct such a type if this is the first use. */ | |
517 | ||
518 | struct type * | |
fba45db2 | 519 | lookup_function_type (struct type *type) |
c906108c | 520 | { |
0c8b41f1 | 521 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
522 | } |
523 | ||
71918a86 | 524 | /* Given a type TYPE and argument types, return the appropriate |
a6fb9c08 TT |
525 | function type. If the final type in PARAM_TYPES is NULL, make a |
526 | varargs function. */ | |
71918a86 TT |
527 | |
528 | struct type * | |
529 | lookup_function_type_with_arguments (struct type *type, | |
530 | int nparams, | |
531 | struct type **param_types) | |
532 | { | |
533 | struct type *fn = make_function_type (type, (struct type **) 0); | |
534 | int i; | |
535 | ||
e314d629 | 536 | if (nparams > 0) |
a6fb9c08 | 537 | { |
e314d629 TT |
538 | if (param_types[nparams - 1] == NULL) |
539 | { | |
540 | --nparams; | |
541 | TYPE_VARARGS (fn) = 1; | |
542 | } | |
543 | else if (TYPE_CODE (check_typedef (param_types[nparams - 1])) | |
544 | == TYPE_CODE_VOID) | |
545 | { | |
546 | --nparams; | |
547 | /* Caller should have ensured this. */ | |
548 | gdb_assert (nparams == 0); | |
549 | TYPE_PROTOTYPED (fn) = 1; | |
550 | } | |
54990598 PA |
551 | else |
552 | TYPE_PROTOTYPED (fn) = 1; | |
a6fb9c08 TT |
553 | } |
554 | ||
71918a86 | 555 | TYPE_NFIELDS (fn) = nparams; |
224c3ddb SM |
556 | TYPE_FIELDS (fn) |
557 | = (struct field *) TYPE_ZALLOC (fn, nparams * sizeof (struct field)); | |
71918a86 TT |
558 | for (i = 0; i < nparams; ++i) |
559 | TYPE_FIELD_TYPE (fn, i) = param_types[i]; | |
560 | ||
561 | return fn; | |
562 | } | |
563 | ||
47663de5 MS |
564 | /* Identify address space identifier by name -- |
565 | return the integer flag defined in gdbtypes.h. */ | |
5212577a DE |
566 | |
567 | int | |
50810684 | 568 | address_space_name_to_int (struct gdbarch *gdbarch, char *space_identifier) |
47663de5 | 569 | { |
8b2dbe47 | 570 | int type_flags; |
d8734c88 | 571 | |
7ba81444 | 572 | /* Check for known address space delimiters. */ |
47663de5 | 573 | if (!strcmp (space_identifier, "code")) |
876cecd0 | 574 | return TYPE_INSTANCE_FLAG_CODE_SPACE; |
47663de5 | 575 | else if (!strcmp (space_identifier, "data")) |
876cecd0 | 576 | return TYPE_INSTANCE_FLAG_DATA_SPACE; |
5f11f355 AC |
577 | else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
578 | && gdbarch_address_class_name_to_type_flags (gdbarch, | |
579 | space_identifier, | |
580 | &type_flags)) | |
8b2dbe47 | 581 | return type_flags; |
47663de5 | 582 | else |
8a3fe4f8 | 583 | error (_("Unknown address space specifier: \"%s\""), space_identifier); |
47663de5 MS |
584 | } |
585 | ||
586 | /* Identify address space identifier by integer flag as defined in | |
7ba81444 | 587 | gdbtypes.h -- return the string version of the adress space name. */ |
47663de5 | 588 | |
321432c0 | 589 | const char * |
50810684 | 590 | address_space_int_to_name (struct gdbarch *gdbarch, int space_flag) |
47663de5 | 591 | { |
876cecd0 | 592 | if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE) |
47663de5 | 593 | return "code"; |
876cecd0 | 594 | else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE) |
47663de5 | 595 | return "data"; |
876cecd0 | 596 | else if ((space_flag & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) |
5f11f355 AC |
597 | && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
598 | return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); | |
47663de5 MS |
599 | else |
600 | return NULL; | |
601 | } | |
602 | ||
2fdde8f8 | 603 | /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
ad766c0a JB |
604 | |
605 | If STORAGE is non-NULL, create the new type instance there. | |
606 | STORAGE must be in the same obstack as TYPE. */ | |
47663de5 | 607 | |
b9362cc7 | 608 | static struct type * |
2fdde8f8 DJ |
609 | make_qualified_type (struct type *type, int new_flags, |
610 | struct type *storage) | |
47663de5 MS |
611 | { |
612 | struct type *ntype; | |
613 | ||
614 | ntype = type; | |
5f61c20e JK |
615 | do |
616 | { | |
617 | if (TYPE_INSTANCE_FLAGS (ntype) == new_flags) | |
618 | return ntype; | |
619 | ntype = TYPE_CHAIN (ntype); | |
620 | } | |
621 | while (ntype != type); | |
47663de5 | 622 | |
2fdde8f8 DJ |
623 | /* Create a new type instance. */ |
624 | if (storage == NULL) | |
625 | ntype = alloc_type_instance (type); | |
626 | else | |
627 | { | |
7ba81444 MS |
628 | /* If STORAGE was provided, it had better be in the same objfile |
629 | as TYPE. Otherwise, we can't link it into TYPE's cv chain: | |
630 | if one objfile is freed and the other kept, we'd have | |
631 | dangling pointers. */ | |
ad766c0a JB |
632 | gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage)); |
633 | ||
2fdde8f8 DJ |
634 | ntype = storage; |
635 | TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); | |
636 | TYPE_CHAIN (ntype) = ntype; | |
637 | } | |
47663de5 MS |
638 | |
639 | /* Pointers or references to the original type are not relevant to | |
2fdde8f8 | 640 | the new type. */ |
47663de5 MS |
641 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
642 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
47663de5 | 643 | |
2fdde8f8 DJ |
644 | /* Chain the new qualified type to the old type. */ |
645 | TYPE_CHAIN (ntype) = TYPE_CHAIN (type); | |
646 | TYPE_CHAIN (type) = ntype; | |
647 | ||
648 | /* Now set the instance flags and return the new type. */ | |
649 | TYPE_INSTANCE_FLAGS (ntype) = new_flags; | |
47663de5 | 650 | |
ab5d3da6 KB |
651 | /* Set length of new type to that of the original type. */ |
652 | TYPE_LENGTH (ntype) = TYPE_LENGTH (type); | |
653 | ||
47663de5 MS |
654 | return ntype; |
655 | } | |
656 | ||
2fdde8f8 DJ |
657 | /* Make an address-space-delimited variant of a type -- a type that |
658 | is identical to the one supplied except that it has an address | |
659 | space attribute attached to it (such as "code" or "data"). | |
660 | ||
7ba81444 MS |
661 | The space attributes "code" and "data" are for Harvard |
662 | architectures. The address space attributes are for architectures | |
663 | which have alternately sized pointers or pointers with alternate | |
664 | representations. */ | |
2fdde8f8 DJ |
665 | |
666 | struct type * | |
667 | make_type_with_address_space (struct type *type, int space_flag) | |
668 | { | |
2fdde8f8 | 669 | int new_flags = ((TYPE_INSTANCE_FLAGS (type) |
876cecd0 TT |
670 | & ~(TYPE_INSTANCE_FLAG_CODE_SPACE |
671 | | TYPE_INSTANCE_FLAG_DATA_SPACE | |
672 | | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)) | |
2fdde8f8 DJ |
673 | | space_flag); |
674 | ||
675 | return make_qualified_type (type, new_flags, NULL); | |
676 | } | |
c906108c SS |
677 | |
678 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
679 | one supplied except that it may have const or volatile attributes | |
680 | CNST is a flag for setting the const attribute | |
681 | VOLTL is a flag for setting the volatile attribute | |
682 | TYPE is the base type whose variant we are creating. | |
c906108c | 683 | |
ad766c0a JB |
684 | If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to |
685 | storage to hold the new qualified type; *TYPEPTR and TYPE must be | |
686 | in the same objfile. Otherwise, allocate fresh memory for the new | |
687 | type whereever TYPE lives. If TYPEPTR is non-zero, set it to the | |
688 | new type we construct. */ | |
5212577a | 689 | |
c906108c | 690 | struct type * |
7ba81444 MS |
691 | make_cv_type (int cnst, int voltl, |
692 | struct type *type, | |
693 | struct type **typeptr) | |
c906108c | 694 | { |
52f0bd74 | 695 | struct type *ntype; /* New type */ |
c906108c | 696 | |
2fdde8f8 | 697 | int new_flags = (TYPE_INSTANCE_FLAGS (type) |
308d96ed MS |
698 | & ~(TYPE_INSTANCE_FLAG_CONST |
699 | | TYPE_INSTANCE_FLAG_VOLATILE)); | |
c906108c | 700 | |
c906108c | 701 | if (cnst) |
876cecd0 | 702 | new_flags |= TYPE_INSTANCE_FLAG_CONST; |
c906108c SS |
703 | |
704 | if (voltl) | |
876cecd0 | 705 | new_flags |= TYPE_INSTANCE_FLAG_VOLATILE; |
a02fd225 | 706 | |
2fdde8f8 | 707 | if (typeptr && *typeptr != NULL) |
a02fd225 | 708 | { |
ad766c0a JB |
709 | /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
710 | a C-V variant chain that threads across objfiles: if one | |
711 | objfile gets freed, then the other has a broken C-V chain. | |
712 | ||
713 | This code used to try to copy over the main type from TYPE to | |
714 | *TYPEPTR if they were in different objfiles, but that's | |
715 | wrong, too: TYPE may have a field list or member function | |
716 | lists, which refer to types of their own, etc. etc. The | |
717 | whole shebang would need to be copied over recursively; you | |
718 | can't have inter-objfile pointers. The only thing to do is | |
719 | to leave stub types as stub types, and look them up afresh by | |
720 | name each time you encounter them. */ | |
721 | gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type)); | |
2fdde8f8 DJ |
722 | } |
723 | ||
7ba81444 MS |
724 | ntype = make_qualified_type (type, new_flags, |
725 | typeptr ? *typeptr : NULL); | |
c906108c | 726 | |
2fdde8f8 DJ |
727 | if (typeptr != NULL) |
728 | *typeptr = ntype; | |
a02fd225 | 729 | |
2fdde8f8 | 730 | return ntype; |
a02fd225 | 731 | } |
c906108c | 732 | |
06d66ee9 TT |
733 | /* Make a 'restrict'-qualified version of TYPE. */ |
734 | ||
735 | struct type * | |
736 | make_restrict_type (struct type *type) | |
737 | { | |
738 | return make_qualified_type (type, | |
739 | (TYPE_INSTANCE_FLAGS (type) | |
740 | | TYPE_INSTANCE_FLAG_RESTRICT), | |
741 | NULL); | |
742 | } | |
743 | ||
f1660027 TT |
744 | /* Make a type without const, volatile, or restrict. */ |
745 | ||
746 | struct type * | |
747 | make_unqualified_type (struct type *type) | |
748 | { | |
749 | return make_qualified_type (type, | |
750 | (TYPE_INSTANCE_FLAGS (type) | |
751 | & ~(TYPE_INSTANCE_FLAG_CONST | |
752 | | TYPE_INSTANCE_FLAG_VOLATILE | |
753 | | TYPE_INSTANCE_FLAG_RESTRICT)), | |
754 | NULL); | |
755 | } | |
756 | ||
a2c2acaf MW |
757 | /* Make a '_Atomic'-qualified version of TYPE. */ |
758 | ||
759 | struct type * | |
760 | make_atomic_type (struct type *type) | |
761 | { | |
762 | return make_qualified_type (type, | |
763 | (TYPE_INSTANCE_FLAGS (type) | |
764 | | TYPE_INSTANCE_FLAG_ATOMIC), | |
765 | NULL); | |
766 | } | |
767 | ||
2fdde8f8 DJ |
768 | /* Replace the contents of ntype with the type *type. This changes the |
769 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
770 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 771 | |
cda6c68a JB |
772 | In order to build recursive types, it's inevitable that we'll need |
773 | to update types in place --- but this sort of indiscriminate | |
774 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
775 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
776 | clear if more steps are needed. */ | |
5212577a | 777 | |
dd6bda65 DJ |
778 | void |
779 | replace_type (struct type *ntype, struct type *type) | |
780 | { | |
ab5d3da6 | 781 | struct type *chain; |
dd6bda65 | 782 | |
ad766c0a JB |
783 | /* These two types had better be in the same objfile. Otherwise, |
784 | the assignment of one type's main type structure to the other | |
785 | will produce a type with references to objects (names; field | |
786 | lists; etc.) allocated on an objfile other than its own. */ | |
e46dd0f4 | 787 | gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (type)); |
ad766c0a | 788 | |
2fdde8f8 | 789 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 790 | |
7ba81444 MS |
791 | /* The type length is not a part of the main type. Update it for |
792 | each type on the variant chain. */ | |
ab5d3da6 | 793 | chain = ntype; |
5f61c20e JK |
794 | do |
795 | { | |
796 | /* Assert that this element of the chain has no address-class bits | |
797 | set in its flags. Such type variants might have type lengths | |
798 | which are supposed to be different from the non-address-class | |
799 | variants. This assertion shouldn't ever be triggered because | |
800 | symbol readers which do construct address-class variants don't | |
801 | call replace_type(). */ | |
802 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
803 | ||
804 | TYPE_LENGTH (chain) = TYPE_LENGTH (type); | |
805 | chain = TYPE_CHAIN (chain); | |
806 | } | |
807 | while (ntype != chain); | |
ab5d3da6 | 808 | |
2fdde8f8 DJ |
809 | /* Assert that the two types have equivalent instance qualifiers. |
810 | This should be true for at least all of our debug readers. */ | |
811 | gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type)); | |
dd6bda65 DJ |
812 | } |
813 | ||
c906108c SS |
814 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
815 | May need to construct such a type if this is the first use. | |
816 | The TYPE is the type of the member. The DOMAIN is the type | |
817 | of the aggregate that the member belongs to. */ | |
818 | ||
819 | struct type * | |
0d5de010 | 820 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 821 | { |
52f0bd74 | 822 | struct type *mtype; |
c906108c | 823 | |
e9bb382b | 824 | mtype = alloc_type_copy (type); |
0d5de010 | 825 | smash_to_memberptr_type (mtype, domain, type); |
c16abbde | 826 | return mtype; |
c906108c SS |
827 | } |
828 | ||
0d5de010 DJ |
829 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
830 | ||
831 | struct type * | |
832 | lookup_methodptr_type (struct type *to_type) | |
833 | { | |
834 | struct type *mtype; | |
835 | ||
e9bb382b | 836 | mtype = alloc_type_copy (to_type); |
0b92b5bb | 837 | smash_to_methodptr_type (mtype, to_type); |
0d5de010 DJ |
838 | return mtype; |
839 | } | |
840 | ||
7ba81444 MS |
841 | /* Allocate a stub method whose return type is TYPE. This apparently |
842 | happens for speed of symbol reading, since parsing out the | |
843 | arguments to the method is cpu-intensive, the way we are doing it. | |
844 | So, we will fill in arguments later. This always returns a fresh | |
845 | type. */ | |
c906108c SS |
846 | |
847 | struct type * | |
fba45db2 | 848 | allocate_stub_method (struct type *type) |
c906108c SS |
849 | { |
850 | struct type *mtype; | |
851 | ||
e9bb382b UW |
852 | mtype = alloc_type_copy (type); |
853 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; | |
854 | TYPE_LENGTH (mtype) = 1; | |
855 | TYPE_STUB (mtype) = 1; | |
c906108c | 856 | TYPE_TARGET_TYPE (mtype) = type; |
4bfb94b8 | 857 | /* TYPE_SELF_TYPE (mtype) = unknown yet */ |
c16abbde | 858 | return mtype; |
c906108c SS |
859 | } |
860 | ||
0f59d5fc PA |
861 | /* See gdbtypes.h. */ |
862 | ||
863 | bool | |
864 | operator== (const dynamic_prop &l, const dynamic_prop &r) | |
865 | { | |
866 | if (l.kind != r.kind) | |
867 | return false; | |
868 | ||
869 | switch (l.kind) | |
870 | { | |
871 | case PROP_UNDEFINED: | |
872 | return true; | |
873 | case PROP_CONST: | |
874 | return l.data.const_val == r.data.const_val; | |
875 | case PROP_ADDR_OFFSET: | |
876 | case PROP_LOCEXPR: | |
877 | case PROP_LOCLIST: | |
878 | return l.data.baton == r.data.baton; | |
879 | } | |
880 | ||
881 | gdb_assert_not_reached ("unhandled dynamic_prop kind"); | |
882 | } | |
883 | ||
884 | /* See gdbtypes.h. */ | |
885 | ||
886 | bool | |
887 | operator== (const range_bounds &l, const range_bounds &r) | |
888 | { | |
889 | #define FIELD_EQ(FIELD) (l.FIELD == r.FIELD) | |
890 | ||
891 | return (FIELD_EQ (low) | |
892 | && FIELD_EQ (high) | |
893 | && FIELD_EQ (flag_upper_bound_is_count) | |
894 | && FIELD_EQ (flag_bound_evaluated)); | |
895 | ||
896 | #undef FIELD_EQ | |
897 | } | |
898 | ||
729efb13 SA |
899 | /* Create a range type with a dynamic range from LOW_BOUND to |
900 | HIGH_BOUND, inclusive. See create_range_type for further details. */ | |
c906108c SS |
901 | |
902 | struct type * | |
729efb13 SA |
903 | create_range_type (struct type *result_type, struct type *index_type, |
904 | const struct dynamic_prop *low_bound, | |
905 | const struct dynamic_prop *high_bound) | |
c906108c SS |
906 | { |
907 | if (result_type == NULL) | |
e9bb382b | 908 | result_type = alloc_type_copy (index_type); |
c906108c SS |
909 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; |
910 | TYPE_TARGET_TYPE (result_type) = index_type; | |
74a9bb82 | 911 | if (TYPE_STUB (index_type)) |
876cecd0 | 912 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c SS |
913 | else |
914 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
729efb13 | 915 | |
43bbcdc2 PH |
916 | TYPE_RANGE_DATA (result_type) = (struct range_bounds *) |
917 | TYPE_ZALLOC (result_type, sizeof (struct range_bounds)); | |
729efb13 SA |
918 | TYPE_RANGE_DATA (result_type)->low = *low_bound; |
919 | TYPE_RANGE_DATA (result_type)->high = *high_bound; | |
c906108c | 920 | |
729efb13 | 921 | if (low_bound->kind == PROP_CONST && low_bound->data.const_val >= 0) |
876cecd0 | 922 | TYPE_UNSIGNED (result_type) = 1; |
c906108c | 923 | |
45e44d27 JB |
924 | /* Ada allows the declaration of range types whose upper bound is |
925 | less than the lower bound, so checking the lower bound is not | |
926 | enough. Make sure we do not mark a range type whose upper bound | |
927 | is negative as unsigned. */ | |
928 | if (high_bound->kind == PROP_CONST && high_bound->data.const_val < 0) | |
929 | TYPE_UNSIGNED (result_type) = 0; | |
930 | ||
262452ec | 931 | return result_type; |
c906108c SS |
932 | } |
933 | ||
729efb13 SA |
934 | /* Create a range type using either a blank type supplied in |
935 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
936 | INDEX_TYPE. | |
937 | ||
938 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND | |
939 | to HIGH_BOUND, inclusive. | |
940 | ||
941 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
942 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
943 | ||
944 | struct type * | |
945 | create_static_range_type (struct type *result_type, struct type *index_type, | |
946 | LONGEST low_bound, LONGEST high_bound) | |
947 | { | |
948 | struct dynamic_prop low, high; | |
949 | ||
950 | low.kind = PROP_CONST; | |
951 | low.data.const_val = low_bound; | |
952 | ||
953 | high.kind = PROP_CONST; | |
954 | high.data.const_val = high_bound; | |
955 | ||
956 | result_type = create_range_type (result_type, index_type, &low, &high); | |
957 | ||
958 | return result_type; | |
959 | } | |
960 | ||
80180f79 SA |
961 | /* Predicate tests whether BOUNDS are static. Returns 1 if all bounds values |
962 | are static, otherwise returns 0. */ | |
963 | ||
964 | static int | |
965 | has_static_range (const struct range_bounds *bounds) | |
966 | { | |
967 | return (bounds->low.kind == PROP_CONST | |
968 | && bounds->high.kind == PROP_CONST); | |
969 | } | |
970 | ||
971 | ||
7ba81444 MS |
972 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
973 | TYPE. Return 1 if type is a range type, 0 if it is discrete (and | |
974 | bounds will fit in LONGEST), or -1 otherwise. */ | |
c906108c SS |
975 | |
976 | int | |
fba45db2 | 977 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c | 978 | { |
f168693b | 979 | type = check_typedef (type); |
c906108c SS |
980 | switch (TYPE_CODE (type)) |
981 | { | |
982 | case TYPE_CODE_RANGE: | |
983 | *lowp = TYPE_LOW_BOUND (type); | |
984 | *highp = TYPE_HIGH_BOUND (type); | |
985 | return 1; | |
986 | case TYPE_CODE_ENUM: | |
987 | if (TYPE_NFIELDS (type) > 0) | |
988 | { | |
989 | /* The enums may not be sorted by value, so search all | |
0963b4bd | 990 | entries. */ |
c906108c SS |
991 | int i; |
992 | ||
14e75d8e | 993 | *lowp = *highp = TYPE_FIELD_ENUMVAL (type, 0); |
c906108c SS |
994 | for (i = 0; i < TYPE_NFIELDS (type); i++) |
995 | { | |
14e75d8e JK |
996 | if (TYPE_FIELD_ENUMVAL (type, i) < *lowp) |
997 | *lowp = TYPE_FIELD_ENUMVAL (type, i); | |
998 | if (TYPE_FIELD_ENUMVAL (type, i) > *highp) | |
999 | *highp = TYPE_FIELD_ENUMVAL (type, i); | |
c906108c SS |
1000 | } |
1001 | ||
7ba81444 | 1002 | /* Set unsigned indicator if warranted. */ |
c5aa993b | 1003 | if (*lowp >= 0) |
c906108c | 1004 | { |
876cecd0 | 1005 | TYPE_UNSIGNED (type) = 1; |
c906108c SS |
1006 | } |
1007 | } | |
1008 | else | |
1009 | { | |
1010 | *lowp = 0; | |
1011 | *highp = -1; | |
1012 | } | |
1013 | return 0; | |
1014 | case TYPE_CODE_BOOL: | |
1015 | *lowp = 0; | |
1016 | *highp = 1; | |
1017 | return 0; | |
1018 | case TYPE_CODE_INT: | |
c5aa993b | 1019 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
1020 | return -1; |
1021 | if (!TYPE_UNSIGNED (type)) | |
1022 | { | |
c5aa993b | 1023 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
1024 | *highp = -*lowp - 1; |
1025 | return 0; | |
1026 | } | |
86a73007 | 1027 | /* fall through */ |
c906108c SS |
1028 | case TYPE_CODE_CHAR: |
1029 | *lowp = 0; | |
1030 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 | 1031 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
7ba81444 | 1032 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
c906108c SS |
1033 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
1034 | *highp = (*highp - 1) | *highp; | |
1035 | return 0; | |
1036 | default: | |
1037 | return -1; | |
1038 | } | |
1039 | } | |
1040 | ||
dbc98a8b KW |
1041 | /* Assuming TYPE is a simple, non-empty array type, compute its upper |
1042 | and lower bound. Save the low bound into LOW_BOUND if not NULL. | |
1043 | Save the high bound into HIGH_BOUND if not NULL. | |
1044 | ||
0963b4bd | 1045 | Return 1 if the operation was successful. Return zero otherwise, |
dbc98a8b KW |
1046 | in which case the values of LOW_BOUND and HIGH_BOUNDS are unmodified. |
1047 | ||
1048 | We now simply use get_discrete_bounds call to get the values | |
1049 | of the low and high bounds. | |
1050 | get_discrete_bounds can return three values: | |
1051 | 1, meaning that index is a range, | |
1052 | 0, meaning that index is a discrete type, | |
1053 | or -1 for failure. */ | |
1054 | ||
1055 | int | |
1056 | get_array_bounds (struct type *type, LONGEST *low_bound, LONGEST *high_bound) | |
1057 | { | |
1058 | struct type *index = TYPE_INDEX_TYPE (type); | |
1059 | LONGEST low = 0; | |
1060 | LONGEST high = 0; | |
1061 | int res; | |
1062 | ||
1063 | if (index == NULL) | |
1064 | return 0; | |
1065 | ||
1066 | res = get_discrete_bounds (index, &low, &high); | |
1067 | if (res == -1) | |
1068 | return 0; | |
1069 | ||
1070 | /* Check if the array bounds are undefined. */ | |
1071 | if (res == 1 | |
1072 | && ((low_bound && TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED (type)) | |
1073 | || (high_bound && TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type)))) | |
1074 | return 0; | |
1075 | ||
1076 | if (low_bound) | |
1077 | *low_bound = low; | |
1078 | ||
1079 | if (high_bound) | |
1080 | *high_bound = high; | |
1081 | ||
1082 | return 1; | |
1083 | } | |
1084 | ||
aa715135 JG |
1085 | /* Assuming that TYPE is a discrete type and VAL is a valid integer |
1086 | representation of a value of this type, save the corresponding | |
1087 | position number in POS. | |
1088 | ||
1089 | Its differs from VAL only in the case of enumeration types. In | |
1090 | this case, the position number of the value of the first listed | |
1091 | enumeration literal is zero; the position number of the value of | |
1092 | each subsequent enumeration literal is one more than that of its | |
1093 | predecessor in the list. | |
1094 | ||
1095 | Return 1 if the operation was successful. Return zero otherwise, | |
1096 | in which case the value of POS is unmodified. | |
1097 | */ | |
1098 | ||
1099 | int | |
1100 | discrete_position (struct type *type, LONGEST val, LONGEST *pos) | |
1101 | { | |
1102 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) | |
1103 | { | |
1104 | int i; | |
1105 | ||
1106 | for (i = 0; i < TYPE_NFIELDS (type); i += 1) | |
1107 | { | |
1108 | if (val == TYPE_FIELD_ENUMVAL (type, i)) | |
1109 | { | |
1110 | *pos = i; | |
1111 | return 1; | |
1112 | } | |
1113 | } | |
1114 | /* Invalid enumeration value. */ | |
1115 | return 0; | |
1116 | } | |
1117 | else | |
1118 | { | |
1119 | *pos = val; | |
1120 | return 1; | |
1121 | } | |
1122 | } | |
1123 | ||
7ba81444 MS |
1124 | /* Create an array type using either a blank type supplied in |
1125 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
1126 | RANGE_TYPE. | |
c906108c SS |
1127 | |
1128 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
1129 | RANGE_TYPE. | |
1130 | ||
a405673c JB |
1131 | BYTE_STRIDE_PROP, when not NULL, provides the array's byte stride. |
1132 | This byte stride property is added to the resulting array type | |
1133 | as a DYN_PROP_BYTE_STRIDE. As a consequence, the BYTE_STRIDE_PROP | |
1134 | argument can only be used to create types that are objfile-owned | |
1135 | (see add_dyn_prop), meaning that either this function must be called | |
1136 | with an objfile-owned RESULT_TYPE, or an objfile-owned RANGE_TYPE. | |
1137 | ||
1138 | BIT_STRIDE is taken into account only when BYTE_STRIDE_PROP is NULL. | |
dc53a7ad JB |
1139 | If BIT_STRIDE is not zero, build a packed array type whose element |
1140 | size is BIT_STRIDE. Otherwise, ignore this parameter. | |
1141 | ||
7ba81444 MS |
1142 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1143 | sure it is TYPE_CODE_UNDEF before we bash it into an array | |
1144 | type? */ | |
c906108c SS |
1145 | |
1146 | struct type * | |
dc53a7ad JB |
1147 | create_array_type_with_stride (struct type *result_type, |
1148 | struct type *element_type, | |
1149 | struct type *range_type, | |
a405673c | 1150 | struct dynamic_prop *byte_stride_prop, |
dc53a7ad | 1151 | unsigned int bit_stride) |
c906108c | 1152 | { |
a405673c JB |
1153 | if (byte_stride_prop != NULL |
1154 | && byte_stride_prop->kind == PROP_CONST) | |
1155 | { | |
1156 | /* The byte stride is actually not dynamic. Pretend we were | |
1157 | called with bit_stride set instead of byte_stride_prop. | |
1158 | This will give us the same result type, while avoiding | |
1159 | the need to handle this as a special case. */ | |
1160 | bit_stride = byte_stride_prop->data.const_val * 8; | |
1161 | byte_stride_prop = NULL; | |
1162 | } | |
1163 | ||
c906108c | 1164 | if (result_type == NULL) |
e9bb382b UW |
1165 | result_type = alloc_type_copy (range_type); |
1166 | ||
c906108c SS |
1167 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
1168 | TYPE_TARGET_TYPE (result_type) = element_type; | |
a405673c JB |
1169 | if (byte_stride_prop == NULL |
1170 | && has_static_range (TYPE_RANGE_DATA (range_type)) | |
b4a7fcab JB |
1171 | && (!type_not_associated (result_type) |
1172 | && !type_not_allocated (result_type))) | |
80180f79 SA |
1173 | { |
1174 | LONGEST low_bound, high_bound; | |
1175 | ||
1176 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
1177 | low_bound = high_bound = 0; | |
f168693b | 1178 | element_type = check_typedef (element_type); |
80180f79 SA |
1179 | /* Be careful when setting the array length. Ada arrays can be |
1180 | empty arrays with the high_bound being smaller than the low_bound. | |
1181 | In such cases, the array length should be zero. */ | |
1182 | if (high_bound < low_bound) | |
1183 | TYPE_LENGTH (result_type) = 0; | |
1184 | else if (bit_stride > 0) | |
1185 | TYPE_LENGTH (result_type) = | |
1186 | (bit_stride * (high_bound - low_bound + 1) + 7) / 8; | |
1187 | else | |
1188 | TYPE_LENGTH (result_type) = | |
1189 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
1190 | } | |
ab0d6e0d | 1191 | else |
80180f79 SA |
1192 | { |
1193 | /* This type is dynamic and its length needs to be computed | |
1194 | on demand. In the meantime, avoid leaving the TYPE_LENGTH | |
1195 | undefined by setting it to zero. Although we are not expected | |
1196 | to trust TYPE_LENGTH in this case, setting the size to zero | |
1197 | allows us to avoid allocating objects of random sizes in case | |
1198 | we accidently do. */ | |
1199 | TYPE_LENGTH (result_type) = 0; | |
1200 | } | |
1201 | ||
c906108c SS |
1202 | TYPE_NFIELDS (result_type) = 1; |
1203 | TYPE_FIELDS (result_type) = | |
1deafd4e | 1204 | (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); |
262452ec | 1205 | TYPE_INDEX_TYPE (result_type) = range_type; |
a405673c | 1206 | if (byte_stride_prop != NULL) |
50a82047 | 1207 | add_dyn_prop (DYN_PROP_BYTE_STRIDE, *byte_stride_prop, result_type); |
a405673c | 1208 | else if (bit_stride > 0) |
dc53a7ad | 1209 | TYPE_FIELD_BITSIZE (result_type, 0) = bit_stride; |
c906108c | 1210 | |
a9ff5f12 | 1211 | /* TYPE_TARGET_STUB will take care of zero length arrays. */ |
c906108c | 1212 | if (TYPE_LENGTH (result_type) == 0) |
876cecd0 | 1213 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c | 1214 | |
c16abbde | 1215 | return result_type; |
c906108c SS |
1216 | } |
1217 | ||
dc53a7ad JB |
1218 | /* Same as create_array_type_with_stride but with no bit_stride |
1219 | (BIT_STRIDE = 0), thus building an unpacked array. */ | |
1220 | ||
1221 | struct type * | |
1222 | create_array_type (struct type *result_type, | |
1223 | struct type *element_type, | |
1224 | struct type *range_type) | |
1225 | { | |
1226 | return create_array_type_with_stride (result_type, element_type, | |
a405673c | 1227 | range_type, NULL, 0); |
dc53a7ad JB |
1228 | } |
1229 | ||
e3506a9f UW |
1230 | struct type * |
1231 | lookup_array_range_type (struct type *element_type, | |
63375b74 | 1232 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f | 1233 | { |
929b5ad4 JB |
1234 | struct type *index_type; |
1235 | struct type *range_type; | |
1236 | ||
1237 | if (TYPE_OBJFILE_OWNED (element_type)) | |
1238 | index_type = objfile_type (TYPE_OWNER (element_type).objfile)->builtin_int; | |
1239 | else | |
1240 | index_type = builtin_type (get_type_arch (element_type))->builtin_int; | |
1241 | range_type = create_static_range_type (NULL, index_type, | |
1242 | low_bound, high_bound); | |
d8734c88 | 1243 | |
e3506a9f UW |
1244 | return create_array_type (NULL, element_type, range_type); |
1245 | } | |
1246 | ||
7ba81444 MS |
1247 | /* Create a string type using either a blank type supplied in |
1248 | RESULT_TYPE, or creating a new type. String types are similar | |
1249 | enough to array of char types that we can use create_array_type to | |
1250 | build the basic type and then bash it into a string type. | |
c906108c SS |
1251 | |
1252 | For fixed length strings, the range type contains 0 as the lower | |
1253 | bound and the length of the string minus one as the upper bound. | |
1254 | ||
7ba81444 MS |
1255 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1256 | sure it is TYPE_CODE_UNDEF before we bash it into a string | |
1257 | type? */ | |
c906108c SS |
1258 | |
1259 | struct type * | |
3b7538c0 UW |
1260 | create_string_type (struct type *result_type, |
1261 | struct type *string_char_type, | |
7ba81444 | 1262 | struct type *range_type) |
c906108c SS |
1263 | { |
1264 | result_type = create_array_type (result_type, | |
f290d38e | 1265 | string_char_type, |
c906108c SS |
1266 | range_type); |
1267 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
c16abbde | 1268 | return result_type; |
c906108c SS |
1269 | } |
1270 | ||
e3506a9f UW |
1271 | struct type * |
1272 | lookup_string_range_type (struct type *string_char_type, | |
63375b74 | 1273 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f UW |
1274 | { |
1275 | struct type *result_type; | |
d8734c88 | 1276 | |
e3506a9f UW |
1277 | result_type = lookup_array_range_type (string_char_type, |
1278 | low_bound, high_bound); | |
1279 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
1280 | return result_type; | |
1281 | } | |
1282 | ||
c906108c | 1283 | struct type * |
fba45db2 | 1284 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c | 1285 | { |
c906108c | 1286 | if (result_type == NULL) |
e9bb382b UW |
1287 | result_type = alloc_type_copy (domain_type); |
1288 | ||
c906108c SS |
1289 | TYPE_CODE (result_type) = TYPE_CODE_SET; |
1290 | TYPE_NFIELDS (result_type) = 1; | |
224c3ddb SM |
1291 | TYPE_FIELDS (result_type) |
1292 | = (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); | |
c906108c | 1293 | |
74a9bb82 | 1294 | if (!TYPE_STUB (domain_type)) |
c906108c | 1295 | { |
f9780d5b | 1296 | LONGEST low_bound, high_bound, bit_length; |
d8734c88 | 1297 | |
c906108c SS |
1298 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
1299 | low_bound = high_bound = 0; | |
1300 | bit_length = high_bound - low_bound + 1; | |
1301 | TYPE_LENGTH (result_type) | |
1302 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
f9780d5b | 1303 | if (low_bound >= 0) |
876cecd0 | 1304 | TYPE_UNSIGNED (result_type) = 1; |
c906108c SS |
1305 | } |
1306 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
1307 | ||
c16abbde | 1308 | return result_type; |
c906108c SS |
1309 | } |
1310 | ||
ea37ba09 DJ |
1311 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
1312 | and any array types nested inside it. */ | |
1313 | ||
1314 | void | |
1315 | make_vector_type (struct type *array_type) | |
1316 | { | |
1317 | struct type *inner_array, *elt_type; | |
1318 | int flags; | |
1319 | ||
1320 | /* Find the innermost array type, in case the array is | |
1321 | multi-dimensional. */ | |
1322 | inner_array = array_type; | |
1323 | while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY) | |
1324 | inner_array = TYPE_TARGET_TYPE (inner_array); | |
1325 | ||
1326 | elt_type = TYPE_TARGET_TYPE (inner_array); | |
1327 | if (TYPE_CODE (elt_type) == TYPE_CODE_INT) | |
1328 | { | |
2844d6b5 | 1329 | flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_INSTANCE_FLAG_NOTTEXT; |
ea37ba09 DJ |
1330 | elt_type = make_qualified_type (elt_type, flags, NULL); |
1331 | TYPE_TARGET_TYPE (inner_array) = elt_type; | |
1332 | } | |
1333 | ||
876cecd0 | 1334 | TYPE_VECTOR (array_type) = 1; |
ea37ba09 DJ |
1335 | } |
1336 | ||
794ac428 | 1337 | struct type * |
ac3aafc7 EZ |
1338 | init_vector_type (struct type *elt_type, int n) |
1339 | { | |
1340 | struct type *array_type; | |
d8734c88 | 1341 | |
e3506a9f | 1342 | array_type = lookup_array_range_type (elt_type, 0, n - 1); |
ea37ba09 | 1343 | make_vector_type (array_type); |
ac3aafc7 EZ |
1344 | return array_type; |
1345 | } | |
1346 | ||
09e2d7c7 DE |
1347 | /* Internal routine called by TYPE_SELF_TYPE to return the type that TYPE |
1348 | belongs to. In c++ this is the class of "this", but TYPE_THIS_TYPE is too | |
1349 | confusing. "self" is a common enough replacement for "this". | |
1350 | TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or | |
1351 | TYPE_CODE_METHOD. */ | |
1352 | ||
1353 | struct type * | |
1354 | internal_type_self_type (struct type *type) | |
1355 | { | |
1356 | switch (TYPE_CODE (type)) | |
1357 | { | |
1358 | case TYPE_CODE_METHODPTR: | |
1359 | case TYPE_CODE_MEMBERPTR: | |
eaaf76ab DE |
1360 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) |
1361 | return NULL; | |
09e2d7c7 DE |
1362 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE); |
1363 | return TYPE_MAIN_TYPE (type)->type_specific.self_type; | |
1364 | case TYPE_CODE_METHOD: | |
eaaf76ab DE |
1365 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) |
1366 | return NULL; | |
09e2d7c7 DE |
1367 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC); |
1368 | return TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type; | |
1369 | default: | |
1370 | gdb_assert_not_reached ("bad type"); | |
1371 | } | |
1372 | } | |
1373 | ||
1374 | /* Set the type of the class that TYPE belongs to. | |
1375 | In c++ this is the class of "this". | |
1376 | TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or | |
1377 | TYPE_CODE_METHOD. */ | |
1378 | ||
1379 | void | |
1380 | set_type_self_type (struct type *type, struct type *self_type) | |
1381 | { | |
1382 | switch (TYPE_CODE (type)) | |
1383 | { | |
1384 | case TYPE_CODE_METHODPTR: | |
1385 | case TYPE_CODE_MEMBERPTR: | |
1386 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) | |
1387 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_SELF_TYPE; | |
1388 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE); | |
1389 | TYPE_MAIN_TYPE (type)->type_specific.self_type = self_type; | |
1390 | break; | |
1391 | case TYPE_CODE_METHOD: | |
1392 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) | |
1393 | INIT_FUNC_SPECIFIC (type); | |
1394 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC); | |
1395 | TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type = self_type; | |
1396 | break; | |
1397 | default: | |
1398 | gdb_assert_not_reached ("bad type"); | |
1399 | } | |
1400 | } | |
1401 | ||
1402 | /* Smash TYPE to be a type of pointers to members of SELF_TYPE with type | |
0d5de010 DJ |
1403 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a |
1404 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
1405 | TYPE doesn't include the offset (that's the value of the MEMBER | |
1406 | itself), but does include the structure type into which it points | |
1407 | (for some reason). | |
c906108c | 1408 | |
7ba81444 MS |
1409 | When "smashing" the type, we preserve the objfile that the old type |
1410 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1411 | allocated. */ |
1412 | ||
1413 | void | |
09e2d7c7 | 1414 | smash_to_memberptr_type (struct type *type, struct type *self_type, |
0d5de010 | 1415 | struct type *to_type) |
c906108c | 1416 | { |
2fdde8f8 | 1417 | smash_type (type); |
09e2d7c7 | 1418 | TYPE_CODE (type) = TYPE_CODE_MEMBERPTR; |
c906108c | 1419 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1420 | set_type_self_type (type, self_type); |
0d5de010 DJ |
1421 | /* Assume that a data member pointer is the same size as a normal |
1422 | pointer. */ | |
50810684 UW |
1423 | TYPE_LENGTH (type) |
1424 | = gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT; | |
c906108c SS |
1425 | } |
1426 | ||
0b92b5bb TT |
1427 | /* Smash TYPE to be a type of pointer to methods type TO_TYPE. |
1428 | ||
1429 | When "smashing" the type, we preserve the objfile that the old type | |
1430 | pointed to, since we aren't changing where the type is actually | |
1431 | allocated. */ | |
1432 | ||
1433 | void | |
1434 | smash_to_methodptr_type (struct type *type, struct type *to_type) | |
1435 | { | |
1436 | smash_type (type); | |
09e2d7c7 | 1437 | TYPE_CODE (type) = TYPE_CODE_METHODPTR; |
0b92b5bb | 1438 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1439 | set_type_self_type (type, TYPE_SELF_TYPE (to_type)); |
0b92b5bb | 1440 | TYPE_LENGTH (type) = cplus_method_ptr_size (to_type); |
0b92b5bb TT |
1441 | } |
1442 | ||
09e2d7c7 | 1443 | /* Smash TYPE to be a type of method of SELF_TYPE with type TO_TYPE. |
c906108c SS |
1444 | METHOD just means `function that gets an extra "this" argument'. |
1445 | ||
7ba81444 MS |
1446 | When "smashing" the type, we preserve the objfile that the old type |
1447 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1448 | allocated. */ |
1449 | ||
1450 | void | |
09e2d7c7 | 1451 | smash_to_method_type (struct type *type, struct type *self_type, |
ad2f7632 DJ |
1452 | struct type *to_type, struct field *args, |
1453 | int nargs, int varargs) | |
c906108c | 1454 | { |
2fdde8f8 | 1455 | smash_type (type); |
09e2d7c7 | 1456 | TYPE_CODE (type) = TYPE_CODE_METHOD; |
c906108c | 1457 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1458 | set_type_self_type (type, self_type); |
ad2f7632 DJ |
1459 | TYPE_FIELDS (type) = args; |
1460 | TYPE_NFIELDS (type) = nargs; | |
1461 | if (varargs) | |
876cecd0 | 1462 | TYPE_VARARGS (type) = 1; |
c906108c | 1463 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
c906108c SS |
1464 | } |
1465 | ||
1466 | /* Return a typename for a struct/union/enum type without "struct ", | |
1467 | "union ", or "enum ". If the type has a NULL name, return NULL. */ | |
1468 | ||
0d5cff50 | 1469 | const char * |
aa1ee363 | 1470 | type_name_no_tag (const struct type *type) |
c906108c SS |
1471 | { |
1472 | if (TYPE_TAG_NAME (type) != NULL) | |
1473 | return TYPE_TAG_NAME (type); | |
1474 | ||
7ba81444 MS |
1475 | /* Is there code which expects this to return the name if there is |
1476 | no tag name? My guess is that this is mainly used for C++ in | |
1477 | cases where the two will always be the same. */ | |
c906108c SS |
1478 | return TYPE_NAME (type); |
1479 | } | |
1480 | ||
d8228535 JK |
1481 | /* A wrapper of type_name_no_tag which calls error if the type is anonymous. |
1482 | Since GCC PR debug/47510 DWARF provides associated information to detect the | |
1483 | anonymous class linkage name from its typedef. | |
1484 | ||
1485 | Parameter TYPE should not yet have CHECK_TYPEDEF applied, this function will | |
1486 | apply it itself. */ | |
1487 | ||
1488 | const char * | |
1489 | type_name_no_tag_or_error (struct type *type) | |
1490 | { | |
1491 | struct type *saved_type = type; | |
1492 | const char *name; | |
1493 | struct objfile *objfile; | |
1494 | ||
f168693b | 1495 | type = check_typedef (type); |
d8228535 JK |
1496 | |
1497 | name = type_name_no_tag (type); | |
1498 | if (name != NULL) | |
1499 | return name; | |
1500 | ||
1501 | name = type_name_no_tag (saved_type); | |
1502 | objfile = TYPE_OBJFILE (saved_type); | |
1503 | error (_("Invalid anonymous type %s [in module %s], GCC PR debug/47510 bug?"), | |
4262abfb JK |
1504 | name ? name : "<anonymous>", |
1505 | objfile ? objfile_name (objfile) : "<arch>"); | |
d8228535 JK |
1506 | } |
1507 | ||
7ba81444 MS |
1508 | /* Lookup a typedef or primitive type named NAME, visible in lexical |
1509 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
1510 | suitably defined. */ | |
c906108c SS |
1511 | |
1512 | struct type * | |
e6c014f2 | 1513 | lookup_typename (const struct language_defn *language, |
ddd49eee | 1514 | struct gdbarch *gdbarch, const char *name, |
34eaf542 | 1515 | const struct block *block, int noerr) |
c906108c | 1516 | { |
52f0bd74 | 1517 | struct symbol *sym; |
c906108c | 1518 | |
1994afbf | 1519 | sym = lookup_symbol_in_language (name, block, VAR_DOMAIN, |
d12307c1 | 1520 | language->la_language, NULL).symbol; |
c51fe631 DE |
1521 | if (sym != NULL && SYMBOL_CLASS (sym) == LOC_TYPEDEF) |
1522 | return SYMBOL_TYPE (sym); | |
1523 | ||
c51fe631 DE |
1524 | if (noerr) |
1525 | return NULL; | |
1526 | error (_("No type named %s."), name); | |
c906108c SS |
1527 | } |
1528 | ||
1529 | struct type * | |
e6c014f2 | 1530 | lookup_unsigned_typename (const struct language_defn *language, |
0d5cff50 | 1531 | struct gdbarch *gdbarch, const char *name) |
c906108c | 1532 | { |
224c3ddb | 1533 | char *uns = (char *) alloca (strlen (name) + 10); |
c906108c SS |
1534 | |
1535 | strcpy (uns, "unsigned "); | |
1536 | strcpy (uns + 9, name); | |
e6c014f2 | 1537 | return lookup_typename (language, gdbarch, uns, (struct block *) NULL, 0); |
c906108c SS |
1538 | } |
1539 | ||
1540 | struct type * | |
e6c014f2 | 1541 | lookup_signed_typename (const struct language_defn *language, |
0d5cff50 | 1542 | struct gdbarch *gdbarch, const char *name) |
c906108c SS |
1543 | { |
1544 | struct type *t; | |
224c3ddb | 1545 | char *uns = (char *) alloca (strlen (name) + 8); |
c906108c SS |
1546 | |
1547 | strcpy (uns, "signed "); | |
1548 | strcpy (uns + 7, name); | |
e6c014f2 | 1549 | t = lookup_typename (language, gdbarch, uns, (struct block *) NULL, 1); |
7ba81444 | 1550 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
c906108c SS |
1551 | if (t != NULL) |
1552 | return t; | |
e6c014f2 | 1553 | return lookup_typename (language, gdbarch, name, (struct block *) NULL, 0); |
c906108c SS |
1554 | } |
1555 | ||
1556 | /* Lookup a structure type named "struct NAME", | |
1557 | visible in lexical block BLOCK. */ | |
1558 | ||
1559 | struct type * | |
270140bd | 1560 | lookup_struct (const char *name, const struct block *block) |
c906108c | 1561 | { |
52f0bd74 | 1562 | struct symbol *sym; |
c906108c | 1563 | |
d12307c1 | 1564 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1565 | |
1566 | if (sym == NULL) | |
1567 | { | |
8a3fe4f8 | 1568 | error (_("No struct type named %s."), name); |
c906108c SS |
1569 | } |
1570 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1571 | { | |
7ba81444 MS |
1572 | error (_("This context has class, union or enum %s, not a struct."), |
1573 | name); | |
c906108c SS |
1574 | } |
1575 | return (SYMBOL_TYPE (sym)); | |
1576 | } | |
1577 | ||
1578 | /* Lookup a union type named "union NAME", | |
1579 | visible in lexical block BLOCK. */ | |
1580 | ||
1581 | struct type * | |
270140bd | 1582 | lookup_union (const char *name, const struct block *block) |
c906108c | 1583 | { |
52f0bd74 | 1584 | struct symbol *sym; |
c5aa993b | 1585 | struct type *t; |
c906108c | 1586 | |
d12307c1 | 1587 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1588 | |
1589 | if (sym == NULL) | |
8a3fe4f8 | 1590 | error (_("No union type named %s."), name); |
c906108c | 1591 | |
c5aa993b | 1592 | t = SYMBOL_TYPE (sym); |
c906108c SS |
1593 | |
1594 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
c16abbde | 1595 | return t; |
c906108c | 1596 | |
7ba81444 MS |
1597 | /* If we get here, it's not a union. */ |
1598 | error (_("This context has class, struct or enum %s, not a union."), | |
1599 | name); | |
c906108c SS |
1600 | } |
1601 | ||
c906108c SS |
1602 | /* Lookup an enum type named "enum NAME", |
1603 | visible in lexical block BLOCK. */ | |
1604 | ||
1605 | struct type * | |
270140bd | 1606 | lookup_enum (const char *name, const struct block *block) |
c906108c | 1607 | { |
52f0bd74 | 1608 | struct symbol *sym; |
c906108c | 1609 | |
d12307c1 | 1610 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1611 | if (sym == NULL) |
1612 | { | |
8a3fe4f8 | 1613 | error (_("No enum type named %s."), name); |
c906108c SS |
1614 | } |
1615 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
1616 | { | |
7ba81444 MS |
1617 | error (_("This context has class, struct or union %s, not an enum."), |
1618 | name); | |
c906108c SS |
1619 | } |
1620 | return (SYMBOL_TYPE (sym)); | |
1621 | } | |
1622 | ||
1623 | /* Lookup a template type named "template NAME<TYPE>", | |
1624 | visible in lexical block BLOCK. */ | |
1625 | ||
1626 | struct type * | |
7ba81444 | 1627 | lookup_template_type (char *name, struct type *type, |
270140bd | 1628 | const struct block *block) |
c906108c SS |
1629 | { |
1630 | struct symbol *sym; | |
7ba81444 MS |
1631 | char *nam = (char *) |
1632 | alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4); | |
d8734c88 | 1633 | |
c906108c SS |
1634 | strcpy (nam, name); |
1635 | strcat (nam, "<"); | |
0004e5a2 | 1636 | strcat (nam, TYPE_NAME (type)); |
0963b4bd | 1637 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1638 | |
d12307c1 | 1639 | sym = lookup_symbol (nam, block, VAR_DOMAIN, 0).symbol; |
c906108c SS |
1640 | |
1641 | if (sym == NULL) | |
1642 | { | |
8a3fe4f8 | 1643 | error (_("No template type named %s."), name); |
c906108c SS |
1644 | } |
1645 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1646 | { | |
7ba81444 MS |
1647 | error (_("This context has class, union or enum %s, not a struct."), |
1648 | name); | |
c906108c SS |
1649 | } |
1650 | return (SYMBOL_TYPE (sym)); | |
1651 | } | |
1652 | ||
7ba81444 MS |
1653 | /* Given a type TYPE, lookup the type of the component of type named |
1654 | NAME. | |
c906108c | 1655 | |
7ba81444 MS |
1656 | TYPE can be either a struct or union, or a pointer or reference to |
1657 | a struct or union. If it is a pointer or reference, its target | |
1658 | type is automatically used. Thus '.' and '->' are interchangable, | |
1659 | as specified for the definitions of the expression element types | |
1660 | STRUCTOP_STRUCT and STRUCTOP_PTR. | |
c906108c SS |
1661 | |
1662 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
1663 | If NAME is the name of a baseclass type, return that type. */ | |
1664 | ||
1665 | struct type * | |
d7561cbb | 1666 | lookup_struct_elt_type (struct type *type, const char *name, int noerr) |
c906108c SS |
1667 | { |
1668 | int i; | |
1669 | ||
1670 | for (;;) | |
1671 | { | |
f168693b | 1672 | type = check_typedef (type); |
c906108c SS |
1673 | if (TYPE_CODE (type) != TYPE_CODE_PTR |
1674 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1675 | break; | |
1676 | type = TYPE_TARGET_TYPE (type); | |
1677 | } | |
1678 | ||
687d6395 MS |
1679 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
1680 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
c906108c | 1681 | { |
2f408ecb PA |
1682 | std::string type_name = type_to_string (type); |
1683 | error (_("Type %s is not a structure or union type."), | |
1684 | type_name.c_str ()); | |
c906108c SS |
1685 | } |
1686 | ||
1687 | #if 0 | |
7ba81444 MS |
1688 | /* FIXME: This change put in by Michael seems incorrect for the case |
1689 | where the structure tag name is the same as the member name. | |
0963b4bd | 1690 | I.e. when doing "ptype bell->bar" for "struct foo { int bar; int |
7ba81444 | 1691 | foo; } bell;" Disabled by fnf. */ |
c906108c | 1692 | { |
fe978cb0 | 1693 | char *type_name; |
c906108c | 1694 | |
fe978cb0 PA |
1695 | type_name = type_name_no_tag (type); |
1696 | if (type_name != NULL && strcmp (type_name, name) == 0) | |
c906108c SS |
1697 | return type; |
1698 | } | |
1699 | #endif | |
1700 | ||
1701 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1702 | { | |
0d5cff50 | 1703 | const char *t_field_name = TYPE_FIELD_NAME (type, i); |
c906108c | 1704 | |
db577aea | 1705 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c SS |
1706 | { |
1707 | return TYPE_FIELD_TYPE (type, i); | |
1708 | } | |
f5a010c0 PM |
1709 | else if (!t_field_name || *t_field_name == '\0') |
1710 | { | |
d8734c88 MS |
1711 | struct type *subtype |
1712 | = lookup_struct_elt_type (TYPE_FIELD_TYPE (type, i), name, 1); | |
1713 | ||
f5a010c0 PM |
1714 | if (subtype != NULL) |
1715 | return subtype; | |
1716 | } | |
c906108c SS |
1717 | } |
1718 | ||
1719 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1720 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1721 | { | |
1722 | struct type *t; | |
1723 | ||
9733fc94 | 1724 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 1); |
c906108c SS |
1725 | if (t != NULL) |
1726 | { | |
1727 | return t; | |
1728 | } | |
1729 | } | |
1730 | ||
1731 | if (noerr) | |
1732 | { | |
1733 | return NULL; | |
1734 | } | |
c5aa993b | 1735 | |
2f408ecb PA |
1736 | std::string type_name = type_to_string (type); |
1737 | error (_("Type %s has no component named %s."), type_name.c_str (), name); | |
c906108c SS |
1738 | } |
1739 | ||
ed3ef339 DE |
1740 | /* Store in *MAX the largest number representable by unsigned integer type |
1741 | TYPE. */ | |
1742 | ||
1743 | void | |
1744 | get_unsigned_type_max (struct type *type, ULONGEST *max) | |
1745 | { | |
1746 | unsigned int n; | |
1747 | ||
f168693b | 1748 | type = check_typedef (type); |
ed3ef339 DE |
1749 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && TYPE_UNSIGNED (type)); |
1750 | gdb_assert (TYPE_LENGTH (type) <= sizeof (ULONGEST)); | |
1751 | ||
1752 | /* Written this way to avoid overflow. */ | |
1753 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1754 | *max = ((((ULONGEST) 1 << (n - 1)) - 1) << 1) | 1; | |
1755 | } | |
1756 | ||
1757 | /* Store in *MIN, *MAX the smallest and largest numbers representable by | |
1758 | signed integer type TYPE. */ | |
1759 | ||
1760 | void | |
1761 | get_signed_type_minmax (struct type *type, LONGEST *min, LONGEST *max) | |
1762 | { | |
1763 | unsigned int n; | |
1764 | ||
f168693b | 1765 | type = check_typedef (type); |
ed3ef339 DE |
1766 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && !TYPE_UNSIGNED (type)); |
1767 | gdb_assert (TYPE_LENGTH (type) <= sizeof (LONGEST)); | |
1768 | ||
1769 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1770 | *min = -((ULONGEST) 1 << (n - 1)); | |
1771 | *max = ((ULONGEST) 1 << (n - 1)) - 1; | |
1772 | } | |
1773 | ||
ae6ae975 DE |
1774 | /* Internal routine called by TYPE_VPTR_FIELDNO to return the value of |
1775 | cplus_stuff.vptr_fieldno. | |
1776 | ||
1777 | cplus_stuff is initialized to cplus_struct_default which does not | |
1778 | set vptr_fieldno to -1 for portability reasons (IWBN to use C99 | |
1779 | designated initializers). We cope with that here. */ | |
1780 | ||
1781 | int | |
1782 | internal_type_vptr_fieldno (struct type *type) | |
1783 | { | |
f168693b | 1784 | type = check_typedef (type); |
ae6ae975 DE |
1785 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1786 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1787 | if (!HAVE_CPLUS_STRUCT (type)) | |
1788 | return -1; | |
1789 | return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno; | |
1790 | } | |
1791 | ||
1792 | /* Set the value of cplus_stuff.vptr_fieldno. */ | |
1793 | ||
1794 | void | |
1795 | set_type_vptr_fieldno (struct type *type, int fieldno) | |
1796 | { | |
f168693b | 1797 | type = check_typedef (type); |
ae6ae975 DE |
1798 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1799 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1800 | if (!HAVE_CPLUS_STRUCT (type)) | |
1801 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
1802 | TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno = fieldno; | |
1803 | } | |
1804 | ||
1805 | /* Internal routine called by TYPE_VPTR_BASETYPE to return the value of | |
1806 | cplus_stuff.vptr_basetype. */ | |
1807 | ||
1808 | struct type * | |
1809 | internal_type_vptr_basetype (struct type *type) | |
1810 | { | |
f168693b | 1811 | type = check_typedef (type); |
ae6ae975 DE |
1812 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1813 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1814 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF); | |
1815 | return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype; | |
1816 | } | |
1817 | ||
1818 | /* Set the value of cplus_stuff.vptr_basetype. */ | |
1819 | ||
1820 | void | |
1821 | set_type_vptr_basetype (struct type *type, struct type *basetype) | |
1822 | { | |
f168693b | 1823 | type = check_typedef (type); |
ae6ae975 DE |
1824 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1825 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1826 | if (!HAVE_CPLUS_STRUCT (type)) | |
1827 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
1828 | TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype = basetype; | |
1829 | } | |
1830 | ||
81fe8080 DE |
1831 | /* Lookup the vptr basetype/fieldno values for TYPE. |
1832 | If found store vptr_basetype in *BASETYPEP if non-NULL, and return | |
1833 | vptr_fieldno. Also, if found and basetype is from the same objfile, | |
1834 | cache the results. | |
1835 | If not found, return -1 and ignore BASETYPEP. | |
1836 | Callers should be aware that in some cases (for example, | |
c906108c | 1837 | the type or one of its baseclasses is a stub type and we are |
d48cc9dd DJ |
1838 | debugging a .o file, or the compiler uses DWARF-2 and is not GCC), |
1839 | this function will not be able to find the | |
7ba81444 | 1840 | virtual function table pointer, and vptr_fieldno will remain -1 and |
81fe8080 | 1841 | vptr_basetype will remain NULL or incomplete. */ |
c906108c | 1842 | |
81fe8080 DE |
1843 | int |
1844 | get_vptr_fieldno (struct type *type, struct type **basetypep) | |
c906108c | 1845 | { |
f168693b | 1846 | type = check_typedef (type); |
c906108c SS |
1847 | |
1848 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1849 | { | |
1850 | int i; | |
1851 | ||
7ba81444 MS |
1852 | /* We must start at zero in case the first (and only) baseclass |
1853 | is virtual (and hence we cannot share the table pointer). */ | |
c906108c SS |
1854 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1855 | { | |
81fe8080 DE |
1856 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
1857 | int fieldno; | |
1858 | struct type *basetype; | |
1859 | ||
1860 | fieldno = get_vptr_fieldno (baseclass, &basetype); | |
1861 | if (fieldno >= 0) | |
c906108c | 1862 | { |
81fe8080 | 1863 | /* If the type comes from a different objfile we can't cache |
0963b4bd | 1864 | it, it may have a different lifetime. PR 2384 */ |
5ef73790 | 1865 | if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype)) |
81fe8080 | 1866 | { |
ae6ae975 DE |
1867 | set_type_vptr_fieldno (type, fieldno); |
1868 | set_type_vptr_basetype (type, basetype); | |
81fe8080 DE |
1869 | } |
1870 | if (basetypep) | |
1871 | *basetypep = basetype; | |
1872 | return fieldno; | |
c906108c SS |
1873 | } |
1874 | } | |
81fe8080 DE |
1875 | |
1876 | /* Not found. */ | |
1877 | return -1; | |
1878 | } | |
1879 | else | |
1880 | { | |
1881 | if (basetypep) | |
1882 | *basetypep = TYPE_VPTR_BASETYPE (type); | |
1883 | return TYPE_VPTR_FIELDNO (type); | |
c906108c SS |
1884 | } |
1885 | } | |
1886 | ||
44e1a9eb DJ |
1887 | static void |
1888 | stub_noname_complaint (void) | |
1889 | { | |
e2e0b3e5 | 1890 | complaint (&symfile_complaints, _("stub type has NULL name")); |
44e1a9eb DJ |
1891 | } |
1892 | ||
a405673c JB |
1893 | /* Return nonzero if TYPE has a DYN_PROP_BYTE_STRIDE dynamic property |
1894 | attached to it, and that property has a non-constant value. */ | |
1895 | ||
1896 | static int | |
1897 | array_type_has_dynamic_stride (struct type *type) | |
1898 | { | |
1899 | struct dynamic_prop *prop = get_dyn_prop (DYN_PROP_BYTE_STRIDE, type); | |
1900 | ||
1901 | return (prop != NULL && prop->kind != PROP_CONST); | |
1902 | } | |
1903 | ||
d98b7a16 | 1904 | /* Worker for is_dynamic_type. */ |
80180f79 | 1905 | |
d98b7a16 | 1906 | static int |
ee715b5a | 1907 | is_dynamic_type_internal (struct type *type, int top_level) |
80180f79 SA |
1908 | { |
1909 | type = check_typedef (type); | |
1910 | ||
e771e4be PMR |
1911 | /* We only want to recognize references at the outermost level. */ |
1912 | if (top_level && TYPE_CODE (type) == TYPE_CODE_REF) | |
1913 | type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1914 | ||
3cdcd0ce JB |
1915 | /* Types that have a dynamic TYPE_DATA_LOCATION are considered |
1916 | dynamic, even if the type itself is statically defined. | |
1917 | From a user's point of view, this may appear counter-intuitive; | |
1918 | but it makes sense in this context, because the point is to determine | |
1919 | whether any part of the type needs to be resolved before it can | |
1920 | be exploited. */ | |
1921 | if (TYPE_DATA_LOCATION (type) != NULL | |
1922 | && (TYPE_DATA_LOCATION_KIND (type) == PROP_LOCEXPR | |
1923 | || TYPE_DATA_LOCATION_KIND (type) == PROP_LOCLIST)) | |
1924 | return 1; | |
1925 | ||
3f2f83dd KB |
1926 | if (TYPE_ASSOCIATED_PROP (type)) |
1927 | return 1; | |
1928 | ||
1929 | if (TYPE_ALLOCATED_PROP (type)) | |
1930 | return 1; | |
1931 | ||
80180f79 SA |
1932 | switch (TYPE_CODE (type)) |
1933 | { | |
6f8a3220 | 1934 | case TYPE_CODE_RANGE: |
ddb87a81 JB |
1935 | { |
1936 | /* A range type is obviously dynamic if it has at least one | |
1937 | dynamic bound. But also consider the range type to be | |
1938 | dynamic when its subtype is dynamic, even if the bounds | |
1939 | of the range type are static. It allows us to assume that | |
1940 | the subtype of a static range type is also static. */ | |
1941 | return (!has_static_range (TYPE_RANGE_DATA (type)) | |
ee715b5a | 1942 | || is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0)); |
ddb87a81 | 1943 | } |
6f8a3220 | 1944 | |
80180f79 SA |
1945 | case TYPE_CODE_ARRAY: |
1946 | { | |
80180f79 | 1947 | gdb_assert (TYPE_NFIELDS (type) == 1); |
6f8a3220 | 1948 | |
a405673c | 1949 | /* The array is dynamic if either the bounds are dynamic... */ |
ee715b5a | 1950 | if (is_dynamic_type_internal (TYPE_INDEX_TYPE (type), 0)) |
80180f79 | 1951 | return 1; |
a405673c JB |
1952 | /* ... or the elements it contains have a dynamic contents... */ |
1953 | if (is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0)) | |
1954 | return 1; | |
1955 | /* ... or if it has a dynamic stride... */ | |
1956 | if (array_type_has_dynamic_stride (type)) | |
1957 | return 1; | |
1958 | return 0; | |
80180f79 | 1959 | } |
012370f6 TT |
1960 | |
1961 | case TYPE_CODE_STRUCT: | |
1962 | case TYPE_CODE_UNION: | |
1963 | { | |
1964 | int i; | |
1965 | ||
1966 | for (i = 0; i < TYPE_NFIELDS (type); ++i) | |
1967 | if (!field_is_static (&TYPE_FIELD (type, i)) | |
ee715b5a | 1968 | && is_dynamic_type_internal (TYPE_FIELD_TYPE (type, i), 0)) |
012370f6 TT |
1969 | return 1; |
1970 | } | |
1971 | break; | |
80180f79 | 1972 | } |
92e2a17f TT |
1973 | |
1974 | return 0; | |
80180f79 SA |
1975 | } |
1976 | ||
d98b7a16 TT |
1977 | /* See gdbtypes.h. */ |
1978 | ||
1979 | int | |
1980 | is_dynamic_type (struct type *type) | |
1981 | { | |
ee715b5a | 1982 | return is_dynamic_type_internal (type, 1); |
d98b7a16 TT |
1983 | } |
1984 | ||
df25ebbd | 1985 | static struct type *resolve_dynamic_type_internal |
ee715b5a | 1986 | (struct type *type, struct property_addr_info *addr_stack, int top_level); |
d98b7a16 | 1987 | |
df25ebbd JB |
1988 | /* Given a dynamic range type (dyn_range_type) and a stack of |
1989 | struct property_addr_info elements, return a static version | |
1990 | of that type. */ | |
d190df30 | 1991 | |
80180f79 | 1992 | static struct type * |
df25ebbd JB |
1993 | resolve_dynamic_range (struct type *dyn_range_type, |
1994 | struct property_addr_info *addr_stack) | |
80180f79 SA |
1995 | { |
1996 | CORE_ADDR value; | |
ddb87a81 | 1997 | struct type *static_range_type, *static_target_type; |
80180f79 | 1998 | const struct dynamic_prop *prop; |
80180f79 SA |
1999 | struct dynamic_prop low_bound, high_bound; |
2000 | ||
6f8a3220 | 2001 | gdb_assert (TYPE_CODE (dyn_range_type) == TYPE_CODE_RANGE); |
80180f79 | 2002 | |
6f8a3220 | 2003 | prop = &TYPE_RANGE_DATA (dyn_range_type)->low; |
63e43d3a | 2004 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
80180f79 SA |
2005 | { |
2006 | low_bound.kind = PROP_CONST; | |
2007 | low_bound.data.const_val = value; | |
2008 | } | |
2009 | else | |
2010 | { | |
2011 | low_bound.kind = PROP_UNDEFINED; | |
2012 | low_bound.data.const_val = 0; | |
2013 | } | |
2014 | ||
6f8a3220 | 2015 | prop = &TYPE_RANGE_DATA (dyn_range_type)->high; |
63e43d3a | 2016 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
80180f79 SA |
2017 | { |
2018 | high_bound.kind = PROP_CONST; | |
2019 | high_bound.data.const_val = value; | |
c451ebe5 | 2020 | |
6f8a3220 | 2021 | if (TYPE_RANGE_DATA (dyn_range_type)->flag_upper_bound_is_count) |
c451ebe5 SA |
2022 | high_bound.data.const_val |
2023 | = low_bound.data.const_val + high_bound.data.const_val - 1; | |
80180f79 SA |
2024 | } |
2025 | else | |
2026 | { | |
2027 | high_bound.kind = PROP_UNDEFINED; | |
2028 | high_bound.data.const_val = 0; | |
2029 | } | |
2030 | ||
ddb87a81 JB |
2031 | static_target_type |
2032 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (dyn_range_type), | |
ee715b5a | 2033 | addr_stack, 0); |
6f8a3220 | 2034 | static_range_type = create_range_type (copy_type (dyn_range_type), |
ddb87a81 | 2035 | static_target_type, |
6f8a3220 JB |
2036 | &low_bound, &high_bound); |
2037 | TYPE_RANGE_DATA (static_range_type)->flag_bound_evaluated = 1; | |
2038 | return static_range_type; | |
2039 | } | |
2040 | ||
2041 | /* Resolves dynamic bound values of an array type TYPE to static ones. | |
df25ebbd JB |
2042 | ADDR_STACK is a stack of struct property_addr_info to be used |
2043 | if needed during the dynamic resolution. */ | |
6f8a3220 JB |
2044 | |
2045 | static struct type * | |
df25ebbd JB |
2046 | resolve_dynamic_array (struct type *type, |
2047 | struct property_addr_info *addr_stack) | |
6f8a3220 JB |
2048 | { |
2049 | CORE_ADDR value; | |
2050 | struct type *elt_type; | |
2051 | struct type *range_type; | |
2052 | struct type *ary_dim; | |
3f2f83dd | 2053 | struct dynamic_prop *prop; |
a405673c | 2054 | unsigned int bit_stride = 0; |
6f8a3220 JB |
2055 | |
2056 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
2057 | ||
3f2f83dd KB |
2058 | type = copy_type (type); |
2059 | ||
6f8a3220 JB |
2060 | elt_type = type; |
2061 | range_type = check_typedef (TYPE_INDEX_TYPE (elt_type)); | |
df25ebbd | 2062 | range_type = resolve_dynamic_range (range_type, addr_stack); |
6f8a3220 | 2063 | |
3f2f83dd KB |
2064 | /* Resolve allocated/associated here before creating a new array type, which |
2065 | will update the length of the array accordingly. */ | |
2066 | prop = TYPE_ALLOCATED_PROP (type); | |
2067 | if (prop != NULL && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
2068 | { | |
2069 | TYPE_DYN_PROP_ADDR (prop) = value; | |
2070 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
2071 | } | |
2072 | prop = TYPE_ASSOCIATED_PROP (type); | |
2073 | if (prop != NULL && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
2074 | { | |
2075 | TYPE_DYN_PROP_ADDR (prop) = value; | |
2076 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
2077 | } | |
2078 | ||
80180f79 SA |
2079 | ary_dim = check_typedef (TYPE_TARGET_TYPE (elt_type)); |
2080 | ||
2081 | if (ary_dim != NULL && TYPE_CODE (ary_dim) == TYPE_CODE_ARRAY) | |
d0d84780 | 2082 | elt_type = resolve_dynamic_array (ary_dim, addr_stack); |
80180f79 SA |
2083 | else |
2084 | elt_type = TYPE_TARGET_TYPE (type); | |
2085 | ||
a405673c JB |
2086 | prop = get_dyn_prop (DYN_PROP_BYTE_STRIDE, type); |
2087 | if (prop != NULL) | |
2088 | { | |
2089 | int prop_eval_ok | |
2090 | = dwarf2_evaluate_property (prop, NULL, addr_stack, &value); | |
2091 | ||
2092 | if (prop_eval_ok) | |
2093 | { | |
2094 | remove_dyn_prop (DYN_PROP_BYTE_STRIDE, type); | |
2095 | bit_stride = (unsigned int) (value * 8); | |
2096 | } | |
2097 | else | |
2098 | { | |
2099 | /* Could be a bug in our code, but it could also happen | |
2100 | if the DWARF info is not correct. Issue a warning, | |
2101 | and assume no byte/bit stride (leave bit_stride = 0). */ | |
2102 | warning (_("cannot determine array stride for type %s"), | |
2103 | TYPE_NAME (type) ? TYPE_NAME (type) : "<no name>"); | |
2104 | } | |
2105 | } | |
2106 | else | |
2107 | bit_stride = TYPE_FIELD_BITSIZE (type, 0); | |
2108 | ||
2109 | return create_array_type_with_stride (type, elt_type, range_type, NULL, | |
2110 | bit_stride); | |
80180f79 SA |
2111 | } |
2112 | ||
012370f6 | 2113 | /* Resolve dynamic bounds of members of the union TYPE to static |
df25ebbd JB |
2114 | bounds. ADDR_STACK is a stack of struct property_addr_info |
2115 | to be used if needed during the dynamic resolution. */ | |
012370f6 TT |
2116 | |
2117 | static struct type * | |
df25ebbd JB |
2118 | resolve_dynamic_union (struct type *type, |
2119 | struct property_addr_info *addr_stack) | |
012370f6 TT |
2120 | { |
2121 | struct type *resolved_type; | |
2122 | int i; | |
2123 | unsigned int max_len = 0; | |
2124 | ||
2125 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_UNION); | |
2126 | ||
2127 | resolved_type = copy_type (type); | |
2128 | TYPE_FIELDS (resolved_type) | |
224c3ddb SM |
2129 | = (struct field *) TYPE_ALLOC (resolved_type, |
2130 | TYPE_NFIELDS (resolved_type) | |
2131 | * sizeof (struct field)); | |
012370f6 TT |
2132 | memcpy (TYPE_FIELDS (resolved_type), |
2133 | TYPE_FIELDS (type), | |
2134 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
2135 | for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i) | |
2136 | { | |
2137 | struct type *t; | |
2138 | ||
2139 | if (field_is_static (&TYPE_FIELD (type, i))) | |
2140 | continue; | |
2141 | ||
d98b7a16 | 2142 | t = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i), |
ee715b5a | 2143 | addr_stack, 0); |
012370f6 TT |
2144 | TYPE_FIELD_TYPE (resolved_type, i) = t; |
2145 | if (TYPE_LENGTH (t) > max_len) | |
2146 | max_len = TYPE_LENGTH (t); | |
2147 | } | |
2148 | ||
2149 | TYPE_LENGTH (resolved_type) = max_len; | |
2150 | return resolved_type; | |
2151 | } | |
2152 | ||
2153 | /* Resolve dynamic bounds of members of the struct TYPE to static | |
df25ebbd JB |
2154 | bounds. ADDR_STACK is a stack of struct property_addr_info to |
2155 | be used if needed during the dynamic resolution. */ | |
012370f6 TT |
2156 | |
2157 | static struct type * | |
df25ebbd JB |
2158 | resolve_dynamic_struct (struct type *type, |
2159 | struct property_addr_info *addr_stack) | |
012370f6 TT |
2160 | { |
2161 | struct type *resolved_type; | |
2162 | int i; | |
6908c509 | 2163 | unsigned resolved_type_bit_length = 0; |
012370f6 TT |
2164 | |
2165 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT); | |
2166 | gdb_assert (TYPE_NFIELDS (type) > 0); | |
2167 | ||
2168 | resolved_type = copy_type (type); | |
2169 | TYPE_FIELDS (resolved_type) | |
224c3ddb SM |
2170 | = (struct field *) TYPE_ALLOC (resolved_type, |
2171 | TYPE_NFIELDS (resolved_type) | |
2172 | * sizeof (struct field)); | |
012370f6 TT |
2173 | memcpy (TYPE_FIELDS (resolved_type), |
2174 | TYPE_FIELDS (type), | |
2175 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
2176 | for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i) | |
2177 | { | |
6908c509 | 2178 | unsigned new_bit_length; |
df25ebbd | 2179 | struct property_addr_info pinfo; |
012370f6 TT |
2180 | |
2181 | if (field_is_static (&TYPE_FIELD (type, i))) | |
2182 | continue; | |
2183 | ||
6908c509 JB |
2184 | /* As we know this field is not a static field, the field's |
2185 | field_loc_kind should be FIELD_LOC_KIND_BITPOS. Verify | |
2186 | this is the case, but only trigger a simple error rather | |
2187 | than an internal error if that fails. While failing | |
2188 | that verification indicates a bug in our code, the error | |
2189 | is not severe enough to suggest to the user he stops | |
2190 | his debugging session because of it. */ | |
df25ebbd | 2191 | if (TYPE_FIELD_LOC_KIND (type, i) != FIELD_LOC_KIND_BITPOS) |
6908c509 JB |
2192 | error (_("Cannot determine struct field location" |
2193 | " (invalid location kind)")); | |
df25ebbd JB |
2194 | |
2195 | pinfo.type = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
c3345124 | 2196 | pinfo.valaddr = addr_stack->valaddr; |
9920b434 BH |
2197 | pinfo.addr |
2198 | = (addr_stack->addr | |
2199 | + (TYPE_FIELD_BITPOS (resolved_type, i) / TARGET_CHAR_BIT)); | |
df25ebbd JB |
2200 | pinfo.next = addr_stack; |
2201 | ||
2202 | TYPE_FIELD_TYPE (resolved_type, i) | |
2203 | = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i), | |
ee715b5a | 2204 | &pinfo, 0); |
df25ebbd JB |
2205 | gdb_assert (TYPE_FIELD_LOC_KIND (resolved_type, i) |
2206 | == FIELD_LOC_KIND_BITPOS); | |
2207 | ||
6908c509 JB |
2208 | new_bit_length = TYPE_FIELD_BITPOS (resolved_type, i); |
2209 | if (TYPE_FIELD_BITSIZE (resolved_type, i) != 0) | |
2210 | new_bit_length += TYPE_FIELD_BITSIZE (resolved_type, i); | |
2211 | else | |
2212 | new_bit_length += (TYPE_LENGTH (TYPE_FIELD_TYPE (resolved_type, i)) | |
2213 | * TARGET_CHAR_BIT); | |
2214 | ||
2215 | /* Normally, we would use the position and size of the last field | |
2216 | to determine the size of the enclosing structure. But GCC seems | |
2217 | to be encoding the position of some fields incorrectly when | |
2218 | the struct contains a dynamic field that is not placed last. | |
2219 | So we compute the struct size based on the field that has | |
2220 | the highest position + size - probably the best we can do. */ | |
2221 | if (new_bit_length > resolved_type_bit_length) | |
2222 | resolved_type_bit_length = new_bit_length; | |
012370f6 TT |
2223 | } |
2224 | ||
9920b434 BH |
2225 | /* The length of a type won't change for fortran, but it does for C and Ada. |
2226 | For fortran the size of dynamic fields might change over time but not the | |
2227 | type length of the structure. If we adapt it, we run into problems | |
2228 | when calculating the element offset for arrays of structs. */ | |
2229 | if (current_language->la_language != language_fortran) | |
2230 | TYPE_LENGTH (resolved_type) | |
2231 | = (resolved_type_bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
6908c509 | 2232 | |
9e195661 PMR |
2233 | /* The Ada language uses this field as a cache for static fixed types: reset |
2234 | it as RESOLVED_TYPE must have its own static fixed type. */ | |
2235 | TYPE_TARGET_TYPE (resolved_type) = NULL; | |
2236 | ||
012370f6 TT |
2237 | return resolved_type; |
2238 | } | |
2239 | ||
d98b7a16 | 2240 | /* Worker for resolved_dynamic_type. */ |
80180f79 | 2241 | |
d98b7a16 | 2242 | static struct type * |
df25ebbd | 2243 | resolve_dynamic_type_internal (struct type *type, |
ee715b5a PMR |
2244 | struct property_addr_info *addr_stack, |
2245 | int top_level) | |
80180f79 SA |
2246 | { |
2247 | struct type *real_type = check_typedef (type); | |
6f8a3220 | 2248 | struct type *resolved_type = type; |
d9823cbb | 2249 | struct dynamic_prop *prop; |
3cdcd0ce | 2250 | CORE_ADDR value; |
80180f79 | 2251 | |
ee715b5a | 2252 | if (!is_dynamic_type_internal (real_type, top_level)) |
80180f79 SA |
2253 | return type; |
2254 | ||
5537b577 | 2255 | if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
6f8a3220 | 2256 | { |
cac9b138 JK |
2257 | resolved_type = copy_type (type); |
2258 | TYPE_TARGET_TYPE (resolved_type) | |
ee715b5a PMR |
2259 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), addr_stack, |
2260 | top_level); | |
5537b577 JK |
2261 | } |
2262 | else | |
2263 | { | |
2264 | /* Before trying to resolve TYPE, make sure it is not a stub. */ | |
2265 | type = real_type; | |
012370f6 | 2266 | |
5537b577 JK |
2267 | switch (TYPE_CODE (type)) |
2268 | { | |
e771e4be PMR |
2269 | case TYPE_CODE_REF: |
2270 | { | |
2271 | struct property_addr_info pinfo; | |
2272 | ||
2273 | pinfo.type = check_typedef (TYPE_TARGET_TYPE (type)); | |
c3345124 JB |
2274 | pinfo.valaddr = NULL; |
2275 | if (addr_stack->valaddr != NULL) | |
2276 | pinfo.addr = extract_typed_address (addr_stack->valaddr, type); | |
2277 | else | |
2278 | pinfo.addr = read_memory_typed_address (addr_stack->addr, type); | |
e771e4be PMR |
2279 | pinfo.next = addr_stack; |
2280 | ||
2281 | resolved_type = copy_type (type); | |
2282 | TYPE_TARGET_TYPE (resolved_type) | |
2283 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), | |
2284 | &pinfo, top_level); | |
2285 | break; | |
2286 | } | |
2287 | ||
5537b577 | 2288 | case TYPE_CODE_ARRAY: |
df25ebbd | 2289 | resolved_type = resolve_dynamic_array (type, addr_stack); |
5537b577 JK |
2290 | break; |
2291 | ||
2292 | case TYPE_CODE_RANGE: | |
df25ebbd | 2293 | resolved_type = resolve_dynamic_range (type, addr_stack); |
5537b577 JK |
2294 | break; |
2295 | ||
2296 | case TYPE_CODE_UNION: | |
df25ebbd | 2297 | resolved_type = resolve_dynamic_union (type, addr_stack); |
5537b577 JK |
2298 | break; |
2299 | ||
2300 | case TYPE_CODE_STRUCT: | |
df25ebbd | 2301 | resolved_type = resolve_dynamic_struct (type, addr_stack); |
5537b577 JK |
2302 | break; |
2303 | } | |
6f8a3220 | 2304 | } |
80180f79 | 2305 | |
3cdcd0ce JB |
2306 | /* Resolve data_location attribute. */ |
2307 | prop = TYPE_DATA_LOCATION (resolved_type); | |
63e43d3a PMR |
2308 | if (prop != NULL |
2309 | && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
3cdcd0ce | 2310 | { |
d9823cbb KB |
2311 | TYPE_DYN_PROP_ADDR (prop) = value; |
2312 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
3cdcd0ce | 2313 | } |
3cdcd0ce | 2314 | |
80180f79 SA |
2315 | return resolved_type; |
2316 | } | |
2317 | ||
d98b7a16 TT |
2318 | /* See gdbtypes.h */ |
2319 | ||
2320 | struct type * | |
c3345124 JB |
2321 | resolve_dynamic_type (struct type *type, const gdb_byte *valaddr, |
2322 | CORE_ADDR addr) | |
d98b7a16 | 2323 | { |
c3345124 JB |
2324 | struct property_addr_info pinfo |
2325 | = {check_typedef (type), valaddr, addr, NULL}; | |
df25ebbd | 2326 | |
ee715b5a | 2327 | return resolve_dynamic_type_internal (type, &pinfo, 1); |
d98b7a16 TT |
2328 | } |
2329 | ||
d9823cbb KB |
2330 | /* See gdbtypes.h */ |
2331 | ||
2332 | struct dynamic_prop * | |
2333 | get_dyn_prop (enum dynamic_prop_node_kind prop_kind, const struct type *type) | |
2334 | { | |
2335 | struct dynamic_prop_list *node = TYPE_DYN_PROP_LIST (type); | |
2336 | ||
2337 | while (node != NULL) | |
2338 | { | |
2339 | if (node->prop_kind == prop_kind) | |
283a9958 | 2340 | return &node->prop; |
d9823cbb KB |
2341 | node = node->next; |
2342 | } | |
2343 | return NULL; | |
2344 | } | |
2345 | ||
2346 | /* See gdbtypes.h */ | |
2347 | ||
2348 | void | |
2349 | add_dyn_prop (enum dynamic_prop_node_kind prop_kind, struct dynamic_prop prop, | |
50a82047 | 2350 | struct type *type) |
d9823cbb KB |
2351 | { |
2352 | struct dynamic_prop_list *temp; | |
2353 | ||
2354 | gdb_assert (TYPE_OBJFILE_OWNED (type)); | |
2355 | ||
50a82047 TT |
2356 | temp = XOBNEW (&TYPE_OBJFILE (type)->objfile_obstack, |
2357 | struct dynamic_prop_list); | |
d9823cbb | 2358 | temp->prop_kind = prop_kind; |
283a9958 | 2359 | temp->prop = prop; |
d9823cbb KB |
2360 | temp->next = TYPE_DYN_PROP_LIST (type); |
2361 | ||
2362 | TYPE_DYN_PROP_LIST (type) = temp; | |
2363 | } | |
2364 | ||
9920b434 BH |
2365 | /* Remove dynamic property from TYPE in case it exists. */ |
2366 | ||
2367 | void | |
2368 | remove_dyn_prop (enum dynamic_prop_node_kind prop_kind, | |
2369 | struct type *type) | |
2370 | { | |
2371 | struct dynamic_prop_list *prev_node, *curr_node; | |
2372 | ||
2373 | curr_node = TYPE_DYN_PROP_LIST (type); | |
2374 | prev_node = NULL; | |
2375 | ||
2376 | while (NULL != curr_node) | |
2377 | { | |
2378 | if (curr_node->prop_kind == prop_kind) | |
2379 | { | |
2380 | /* Update the linked list but don't free anything. | |
2381 | The property was allocated on objstack and it is not known | |
2382 | if we are on top of it. Nevertheless, everything is released | |
2383 | when the complete objstack is freed. */ | |
2384 | if (NULL == prev_node) | |
2385 | TYPE_DYN_PROP_LIST (type) = curr_node->next; | |
2386 | else | |
2387 | prev_node->next = curr_node->next; | |
2388 | ||
2389 | return; | |
2390 | } | |
2391 | ||
2392 | prev_node = curr_node; | |
2393 | curr_node = curr_node->next; | |
2394 | } | |
2395 | } | |
d9823cbb | 2396 | |
92163a10 JK |
2397 | /* Find the real type of TYPE. This function returns the real type, |
2398 | after removing all layers of typedefs, and completing opaque or stub | |
2399 | types. Completion changes the TYPE argument, but stripping of | |
2400 | typedefs does not. | |
2401 | ||
2402 | Instance flags (e.g. const/volatile) are preserved as typedefs are | |
2403 | stripped. If necessary a new qualified form of the underlying type | |
2404 | is created. | |
2405 | ||
2406 | NOTE: This will return a typedef if TYPE_TARGET_TYPE for the typedef has | |
2407 | not been computed and we're either in the middle of reading symbols, or | |
2408 | there was no name for the typedef in the debug info. | |
2409 | ||
9bc118a5 DE |
2410 | NOTE: Lookup of opaque types can throw errors for invalid symbol files. |
2411 | QUITs in the symbol reading code can also throw. | |
2412 | Thus this function can throw an exception. | |
2413 | ||
92163a10 JK |
2414 | If TYPE is a TYPE_CODE_TYPEDEF, its length is updated to the length of |
2415 | the target type. | |
c906108c SS |
2416 | |
2417 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
0963b4bd | 2418 | we can find a full definition in some other file. If so, copy this |
7ba81444 MS |
2419 | definition, so we can use it in future. There used to be a comment |
2420 | (but not any code) that if we don't find a full definition, we'd | |
2421 | set a flag so we don't spend time in the future checking the same | |
2422 | type. That would be a mistake, though--we might load in more | |
92163a10 | 2423 | symbols which contain a full definition for the type. */ |
c906108c SS |
2424 | |
2425 | struct type * | |
a02fd225 | 2426 | check_typedef (struct type *type) |
c906108c SS |
2427 | { |
2428 | struct type *orig_type = type; | |
92163a10 JK |
2429 | /* While we're removing typedefs, we don't want to lose qualifiers. |
2430 | E.g., const/volatile. */ | |
2431 | int instance_flags = TYPE_INSTANCE_FLAGS (type); | |
a02fd225 | 2432 | |
423c0af8 MS |
2433 | gdb_assert (type); |
2434 | ||
c906108c SS |
2435 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
2436 | { | |
2437 | if (!TYPE_TARGET_TYPE (type)) | |
2438 | { | |
0d5cff50 | 2439 | const char *name; |
c906108c SS |
2440 | struct symbol *sym; |
2441 | ||
2442 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 2443 | reading a symtab. Infinite recursion is one danger. */ |
c906108c | 2444 | if (currently_reading_symtab) |
92163a10 | 2445 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
2446 | |
2447 | name = type_name_no_tag (type); | |
7ba81444 MS |
2448 | /* FIXME: shouldn't we separately check the TYPE_NAME and |
2449 | the TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or | |
2450 | VAR_DOMAIN as appropriate? (this code was written before | |
2451 | TYPE_NAME and TYPE_TAG_NAME were separate). */ | |
c906108c SS |
2452 | if (name == NULL) |
2453 | { | |
23136709 | 2454 | stub_noname_complaint (); |
92163a10 | 2455 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2456 | } |
d12307c1 | 2457 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
2458 | if (sym) |
2459 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
7ba81444 | 2460 | else /* TYPE_CODE_UNDEF */ |
e9bb382b | 2461 | TYPE_TARGET_TYPE (type) = alloc_type_arch (get_type_arch (type)); |
c906108c SS |
2462 | } |
2463 | type = TYPE_TARGET_TYPE (type); | |
c906108c | 2464 | |
92163a10 JK |
2465 | /* Preserve the instance flags as we traverse down the typedef chain. |
2466 | ||
2467 | Handling address spaces/classes is nasty, what do we do if there's a | |
2468 | conflict? | |
2469 | E.g., what if an outer typedef marks the type as class_1 and an inner | |
2470 | typedef marks the type as class_2? | |
2471 | This is the wrong place to do such error checking. We leave it to | |
2472 | the code that created the typedef in the first place to flag the | |
2473 | error. We just pick the outer address space (akin to letting the | |
2474 | outer cast in a chain of casting win), instead of assuming | |
2475 | "it can't happen". */ | |
2476 | { | |
2477 | const int ALL_SPACES = (TYPE_INSTANCE_FLAG_CODE_SPACE | |
2478 | | TYPE_INSTANCE_FLAG_DATA_SPACE); | |
2479 | const int ALL_CLASSES = TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL; | |
2480 | int new_instance_flags = TYPE_INSTANCE_FLAGS (type); | |
2481 | ||
2482 | /* Treat code vs data spaces and address classes separately. */ | |
2483 | if ((instance_flags & ALL_SPACES) != 0) | |
2484 | new_instance_flags &= ~ALL_SPACES; | |
2485 | if ((instance_flags & ALL_CLASSES) != 0) | |
2486 | new_instance_flags &= ~ALL_CLASSES; | |
2487 | ||
2488 | instance_flags |= new_instance_flags; | |
2489 | } | |
2490 | } | |
a02fd225 | 2491 | |
7ba81444 MS |
2492 | /* If this is a struct/class/union with no fields, then check |
2493 | whether a full definition exists somewhere else. This is for | |
2494 | systems where a type definition with no fields is issued for such | |
2495 | types, instead of identifying them as stub types in the first | |
2496 | place. */ | |
c5aa993b | 2497 | |
7ba81444 MS |
2498 | if (TYPE_IS_OPAQUE (type) |
2499 | && opaque_type_resolution | |
2500 | && !currently_reading_symtab) | |
c906108c | 2501 | { |
0d5cff50 | 2502 | const char *name = type_name_no_tag (type); |
c5aa993b | 2503 | struct type *newtype; |
d8734c88 | 2504 | |
c906108c SS |
2505 | if (name == NULL) |
2506 | { | |
23136709 | 2507 | stub_noname_complaint (); |
92163a10 | 2508 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
2509 | } |
2510 | newtype = lookup_transparent_type (name); | |
ad766c0a | 2511 | |
c906108c | 2512 | if (newtype) |
ad766c0a | 2513 | { |
7ba81444 MS |
2514 | /* If the resolved type and the stub are in the same |
2515 | objfile, then replace the stub type with the real deal. | |
2516 | But if they're in separate objfiles, leave the stub | |
2517 | alone; we'll just look up the transparent type every time | |
2518 | we call check_typedef. We can't create pointers between | |
2519 | types allocated to different objfiles, since they may | |
2520 | have different lifetimes. Trying to copy NEWTYPE over to | |
2521 | TYPE's objfile is pointless, too, since you'll have to | |
2522 | move over any other types NEWTYPE refers to, which could | |
2523 | be an unbounded amount of stuff. */ | |
ad766c0a | 2524 | if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
92163a10 JK |
2525 | type = make_qualified_type (newtype, |
2526 | TYPE_INSTANCE_FLAGS (type), | |
2527 | type); | |
ad766c0a JB |
2528 | else |
2529 | type = newtype; | |
2530 | } | |
c906108c | 2531 | } |
7ba81444 MS |
2532 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
2533 | types. */ | |
74a9bb82 | 2534 | else if (TYPE_STUB (type) && !currently_reading_symtab) |
c906108c | 2535 | { |
0d5cff50 | 2536 | const char *name = type_name_no_tag (type); |
c906108c | 2537 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
176620f1 | 2538 | TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or VAR_DOMAIN |
7b83ea04 AC |
2539 | as appropriate? (this code was written before TYPE_NAME and |
2540 | TYPE_TAG_NAME were separate). */ | |
c906108c | 2541 | struct symbol *sym; |
d8734c88 | 2542 | |
c906108c SS |
2543 | if (name == NULL) |
2544 | { | |
23136709 | 2545 | stub_noname_complaint (); |
92163a10 | 2546 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2547 | } |
d12307c1 | 2548 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0).symbol; |
c906108c | 2549 | if (sym) |
c26f2453 JB |
2550 | { |
2551 | /* Same as above for opaque types, we can replace the stub | |
92163a10 | 2552 | with the complete type only if they are in the same |
c26f2453 JB |
2553 | objfile. */ |
2554 | if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type)) | |
92163a10 JK |
2555 | type = make_qualified_type (SYMBOL_TYPE (sym), |
2556 | TYPE_INSTANCE_FLAGS (type), | |
2557 | type); | |
c26f2453 JB |
2558 | else |
2559 | type = SYMBOL_TYPE (sym); | |
2560 | } | |
c906108c SS |
2561 | } |
2562 | ||
74a9bb82 | 2563 | if (TYPE_TARGET_STUB (type)) |
c906108c | 2564 | { |
c906108c SS |
2565 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); |
2566 | ||
74a9bb82 | 2567 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
c5aa993b | 2568 | { |
73e2eb35 | 2569 | /* Nothing we can do. */ |
c5aa993b | 2570 | } |
c906108c SS |
2571 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
2572 | { | |
2573 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
876cecd0 | 2574 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
2575 | } |
2576 | } | |
92163a10 JK |
2577 | |
2578 | type = make_qualified_type (type, instance_flags, NULL); | |
2579 | ||
7ba81444 | 2580 | /* Cache TYPE_LENGTH for future use. */ |
c906108c | 2581 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
92163a10 | 2582 | |
c906108c SS |
2583 | return type; |
2584 | } | |
2585 | ||
7ba81444 | 2586 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
48319d1f | 2587 | occurs, silently return a void type. */ |
c91ecb25 | 2588 | |
b9362cc7 | 2589 | static struct type * |
48319d1f | 2590 | safe_parse_type (struct gdbarch *gdbarch, char *p, int length) |
c91ecb25 ND |
2591 | { |
2592 | struct ui_file *saved_gdb_stderr; | |
34365054 | 2593 | struct type *type = NULL; /* Initialize to keep gcc happy. */ |
c91ecb25 | 2594 | |
7ba81444 | 2595 | /* Suppress error messages. */ |
c91ecb25 | 2596 | saved_gdb_stderr = gdb_stderr; |
d7e74731 | 2597 | gdb_stderr = &null_stream; |
c91ecb25 | 2598 | |
7ba81444 | 2599 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
492d29ea | 2600 | TRY |
8e7b59a5 KS |
2601 | { |
2602 | type = parse_and_eval_type (p, length); | |
2603 | } | |
492d29ea PA |
2604 | CATCH (except, RETURN_MASK_ERROR) |
2605 | { | |
2606 | type = builtin_type (gdbarch)->builtin_void; | |
2607 | } | |
2608 | END_CATCH | |
c91ecb25 | 2609 | |
7ba81444 | 2610 | /* Stop suppressing error messages. */ |
c91ecb25 ND |
2611 | gdb_stderr = saved_gdb_stderr; |
2612 | ||
2613 | return type; | |
2614 | } | |
2615 | ||
c906108c SS |
2616 | /* Ugly hack to convert method stubs into method types. |
2617 | ||
7ba81444 MS |
2618 | He ain't kiddin'. This demangles the name of the method into a |
2619 | string including argument types, parses out each argument type, | |
2620 | generates a string casting a zero to that type, evaluates the | |
2621 | string, and stuffs the resulting type into an argtype vector!!! | |
2622 | Then it knows the type of the whole function (including argument | |
2623 | types for overloading), which info used to be in the stab's but was | |
2624 | removed to hack back the space required for them. */ | |
c906108c | 2625 | |
de17c821 | 2626 | static void |
fba45db2 | 2627 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c | 2628 | { |
50810684 | 2629 | struct gdbarch *gdbarch = get_type_arch (type); |
c906108c SS |
2630 | struct fn_field *f; |
2631 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
8de20a37 TT |
2632 | char *demangled_name = gdb_demangle (mangled_name, |
2633 | DMGL_PARAMS | DMGL_ANSI); | |
c906108c SS |
2634 | char *argtypetext, *p; |
2635 | int depth = 0, argcount = 1; | |
ad2f7632 | 2636 | struct field *argtypes; |
c906108c SS |
2637 | struct type *mtype; |
2638 | ||
2639 | /* Make sure we got back a function string that we can use. */ | |
2640 | if (demangled_name) | |
2641 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
2642 | else |
2643 | p = NULL; | |
c906108c SS |
2644 | |
2645 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
2646 | error (_("Internal: Cannot demangle mangled name `%s'."), |
2647 | mangled_name); | |
c906108c SS |
2648 | |
2649 | /* Now, read in the parameters that define this type. */ | |
2650 | p += 1; | |
2651 | argtypetext = p; | |
2652 | while (*p) | |
2653 | { | |
070ad9f0 | 2654 | if (*p == '(' || *p == '<') |
c906108c SS |
2655 | { |
2656 | depth += 1; | |
2657 | } | |
070ad9f0 | 2658 | else if (*p == ')' || *p == '>') |
c906108c SS |
2659 | { |
2660 | depth -= 1; | |
2661 | } | |
2662 | else if (*p == ',' && depth == 0) | |
2663 | { | |
2664 | argcount += 1; | |
2665 | } | |
2666 | ||
2667 | p += 1; | |
2668 | } | |
2669 | ||
ad2f7632 | 2670 | /* If we read one argument and it was ``void'', don't count it. */ |
61012eef | 2671 | if (startswith (argtypetext, "(void)")) |
ad2f7632 | 2672 | argcount -= 1; |
c906108c | 2673 | |
ad2f7632 DJ |
2674 | /* We need one extra slot, for the THIS pointer. */ |
2675 | ||
2676 | argtypes = (struct field *) | |
2677 | TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); | |
c906108c | 2678 | p = argtypetext; |
4a1970e4 DJ |
2679 | |
2680 | /* Add THIS pointer for non-static methods. */ | |
2681 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
2682 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
2683 | argcount = 0; | |
2684 | else | |
2685 | { | |
ad2f7632 | 2686 | argtypes[0].type = lookup_pointer_type (type); |
4a1970e4 DJ |
2687 | argcount = 1; |
2688 | } | |
c906108c | 2689 | |
0963b4bd | 2690 | if (*p != ')') /* () means no args, skip while. */ |
c906108c SS |
2691 | { |
2692 | depth = 0; | |
2693 | while (*p) | |
2694 | { | |
2695 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
2696 | { | |
ad2f7632 DJ |
2697 | /* Avoid parsing of ellipsis, they will be handled below. |
2698 | Also avoid ``void'' as above. */ | |
2699 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 | |
2700 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 2701 | { |
ad2f7632 | 2702 | argtypes[argcount].type = |
48319d1f | 2703 | safe_parse_type (gdbarch, argtypetext, p - argtypetext); |
c906108c SS |
2704 | argcount += 1; |
2705 | } | |
2706 | argtypetext = p + 1; | |
2707 | } | |
2708 | ||
070ad9f0 | 2709 | if (*p == '(' || *p == '<') |
c906108c SS |
2710 | { |
2711 | depth += 1; | |
2712 | } | |
070ad9f0 | 2713 | else if (*p == ')' || *p == '>') |
c906108c SS |
2714 | { |
2715 | depth -= 1; | |
2716 | } | |
2717 | ||
2718 | p += 1; | |
2719 | } | |
2720 | } | |
2721 | ||
c906108c SS |
2722 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
2723 | ||
2724 | /* Now update the old "stub" type into a real type. */ | |
2725 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
09e2d7c7 DE |
2726 | /* MTYPE may currently be a function (TYPE_CODE_FUNC). |
2727 | We want a method (TYPE_CODE_METHOD). */ | |
2728 | smash_to_method_type (mtype, type, TYPE_TARGET_TYPE (mtype), | |
2729 | argtypes, argcount, p[-2] == '.'); | |
876cecd0 | 2730 | TYPE_STUB (mtype) = 0; |
c906108c | 2731 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
ad2f7632 DJ |
2732 | |
2733 | xfree (demangled_name); | |
c906108c SS |
2734 | } |
2735 | ||
7ba81444 MS |
2736 | /* This is the external interface to check_stub_method, above. This |
2737 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
2738 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
2739 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
2740 | correct. | |
de17c821 DJ |
2741 | |
2742 | This function unfortunately can not die until stabs do. */ | |
2743 | ||
2744 | void | |
2745 | check_stub_method_group (struct type *type, int method_id) | |
2746 | { | |
2747 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
2748 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
f710f4fc | 2749 | int j, found_stub = 0; |
de17c821 DJ |
2750 | |
2751 | for (j = 0; j < len; j++) | |
2752 | if (TYPE_FN_FIELD_STUB (f, j)) | |
2753 | { | |
2754 | found_stub = 1; | |
2755 | check_stub_method (type, method_id, j); | |
2756 | } | |
2757 | ||
7ba81444 MS |
2758 | /* GNU v3 methods with incorrect names were corrected when we read |
2759 | in type information, because it was cheaper to do it then. The | |
2760 | only GNU v2 methods with incorrect method names are operators and | |
2761 | destructors; destructors were also corrected when we read in type | |
2762 | information. | |
de17c821 DJ |
2763 | |
2764 | Therefore the only thing we need to handle here are v2 operator | |
2765 | names. */ | |
61012eef | 2766 | if (found_stub && !startswith (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z")) |
de17c821 DJ |
2767 | { |
2768 | int ret; | |
2769 | char dem_opname[256]; | |
2770 | ||
7ba81444 MS |
2771 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
2772 | method_id), | |
de17c821 DJ |
2773 | dem_opname, DMGL_ANSI); |
2774 | if (!ret) | |
7ba81444 MS |
2775 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
2776 | method_id), | |
de17c821 DJ |
2777 | dem_opname, 0); |
2778 | if (ret) | |
2779 | TYPE_FN_FIELDLIST_NAME (type, method_id) = xstrdup (dem_opname); | |
2780 | } | |
2781 | } | |
2782 | ||
9655fd1a JK |
2783 | /* Ensure it is in .rodata (if available) by workarounding GCC PR 44690. */ |
2784 | const struct cplus_struct_type cplus_struct_default = { }; | |
c906108c SS |
2785 | |
2786 | void | |
fba45db2 | 2787 | allocate_cplus_struct_type (struct type *type) |
c906108c | 2788 | { |
b4ba55a1 JB |
2789 | if (HAVE_CPLUS_STRUCT (type)) |
2790 | /* Structure was already allocated. Nothing more to do. */ | |
2791 | return; | |
2792 | ||
2793 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF; | |
2794 | TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
2795 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
2796 | *(TYPE_RAW_CPLUS_SPECIFIC (type)) = cplus_struct_default; | |
ae6ae975 | 2797 | set_type_vptr_fieldno (type, -1); |
c906108c SS |
2798 | } |
2799 | ||
b4ba55a1 JB |
2800 | const struct gnat_aux_type gnat_aux_default = |
2801 | { NULL }; | |
2802 | ||
2803 | /* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF, | |
2804 | and allocate the associated gnat-specific data. The gnat-specific | |
2805 | data is also initialized to gnat_aux_default. */ | |
5212577a | 2806 | |
b4ba55a1 JB |
2807 | void |
2808 | allocate_gnat_aux_type (struct type *type) | |
2809 | { | |
2810 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF; | |
2811 | TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) | |
2812 | TYPE_ALLOC (type, sizeof (struct gnat_aux_type)); | |
2813 | *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default; | |
2814 | } | |
2815 | ||
ae438bc5 UW |
2816 | /* Helper function to initialize a newly allocated type. Set type code |
2817 | to CODE and initialize the type-specific fields accordingly. */ | |
2818 | ||
2819 | static void | |
2820 | set_type_code (struct type *type, enum type_code code) | |
2821 | { | |
2822 | TYPE_CODE (type) = code; | |
2823 | ||
2824 | switch (code) | |
2825 | { | |
2826 | case TYPE_CODE_STRUCT: | |
2827 | case TYPE_CODE_UNION: | |
2828 | case TYPE_CODE_NAMESPACE: | |
2829 | INIT_CPLUS_SPECIFIC (type); | |
2830 | break; | |
2831 | case TYPE_CODE_FLT: | |
2832 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT; | |
2833 | break; | |
2834 | case TYPE_CODE_FUNC: | |
2835 | INIT_FUNC_SPECIFIC (type); | |
2836 | break; | |
2837 | } | |
2838 | } | |
2839 | ||
19f392bc UW |
2840 | /* Helper function to verify floating-point format and size. |
2841 | BIT is the type size in bits; if BIT equals -1, the size is | |
2842 | determined by the floatformat. Returns size to be used. */ | |
2843 | ||
2844 | static int | |
0db7851f | 2845 | verify_floatformat (int bit, const struct floatformat *floatformat) |
19f392bc | 2846 | { |
0db7851f | 2847 | gdb_assert (floatformat != NULL); |
9b790ce7 | 2848 | |
19f392bc | 2849 | if (bit == -1) |
0db7851f | 2850 | bit = floatformat->totalsize; |
19f392bc | 2851 | |
0db7851f UW |
2852 | gdb_assert (bit >= 0); |
2853 | gdb_assert (bit >= floatformat->totalsize); | |
19f392bc UW |
2854 | |
2855 | return bit; | |
2856 | } | |
2857 | ||
0db7851f UW |
2858 | /* Return the floating-point format for a floating-point variable of |
2859 | type TYPE. */ | |
2860 | ||
2861 | const struct floatformat * | |
2862 | floatformat_from_type (const struct type *type) | |
2863 | { | |
2864 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLT); | |
2865 | gdb_assert (TYPE_FLOATFORMAT (type)); | |
2866 | return TYPE_FLOATFORMAT (type); | |
2867 | } | |
2868 | ||
c906108c SS |
2869 | /* Helper function to initialize the standard scalar types. |
2870 | ||
86f62fd7 TT |
2871 | If NAME is non-NULL, then it is used to initialize the type name. |
2872 | Note that NAME is not copied; it is required to have a lifetime at | |
2873 | least as long as OBJFILE. */ | |
c906108c SS |
2874 | |
2875 | struct type * | |
77b7c781 | 2876 | init_type (struct objfile *objfile, enum type_code code, int bit, |
19f392bc | 2877 | const char *name) |
c906108c | 2878 | { |
52f0bd74 | 2879 | struct type *type; |
c906108c SS |
2880 | |
2881 | type = alloc_type (objfile); | |
ae438bc5 | 2882 | set_type_code (type, code); |
77b7c781 UW |
2883 | gdb_assert ((bit % TARGET_CHAR_BIT) == 0); |
2884 | TYPE_LENGTH (type) = bit / TARGET_CHAR_BIT; | |
86f62fd7 | 2885 | TYPE_NAME (type) = name; |
c906108c | 2886 | |
c16abbde | 2887 | return type; |
c906108c | 2888 | } |
19f392bc | 2889 | |
46a4882b PA |
2890 | /* Allocate a TYPE_CODE_ERROR type structure associated with OBJFILE, |
2891 | to use with variables that have no debug info. NAME is the type | |
2892 | name. */ | |
2893 | ||
2894 | static struct type * | |
2895 | init_nodebug_var_type (struct objfile *objfile, const char *name) | |
2896 | { | |
2897 | return init_type (objfile, TYPE_CODE_ERROR, 0, name); | |
2898 | } | |
2899 | ||
19f392bc UW |
2900 | /* Allocate a TYPE_CODE_INT type structure associated with OBJFILE. |
2901 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
2902 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
2903 | ||
2904 | struct type * | |
2905 | init_integer_type (struct objfile *objfile, | |
2906 | int bit, int unsigned_p, const char *name) | |
2907 | { | |
2908 | struct type *t; | |
2909 | ||
77b7c781 | 2910 | t = init_type (objfile, TYPE_CODE_INT, bit, name); |
19f392bc UW |
2911 | if (unsigned_p) |
2912 | TYPE_UNSIGNED (t) = 1; | |
2913 | ||
2914 | return t; | |
2915 | } | |
2916 | ||
2917 | /* Allocate a TYPE_CODE_CHAR type structure associated with OBJFILE. | |
2918 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
2919 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
2920 | ||
2921 | struct type * | |
2922 | init_character_type (struct objfile *objfile, | |
2923 | int bit, int unsigned_p, const char *name) | |
2924 | { | |
2925 | struct type *t; | |
2926 | ||
77b7c781 | 2927 | t = init_type (objfile, TYPE_CODE_CHAR, bit, name); |
19f392bc UW |
2928 | if (unsigned_p) |
2929 | TYPE_UNSIGNED (t) = 1; | |
2930 | ||
2931 | return t; | |
2932 | } | |
2933 | ||
2934 | /* Allocate a TYPE_CODE_BOOL type structure associated with OBJFILE. | |
2935 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
2936 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
2937 | ||
2938 | struct type * | |
2939 | init_boolean_type (struct objfile *objfile, | |
2940 | int bit, int unsigned_p, const char *name) | |
2941 | { | |
2942 | struct type *t; | |
2943 | ||
77b7c781 | 2944 | t = init_type (objfile, TYPE_CODE_BOOL, bit, name); |
19f392bc UW |
2945 | if (unsigned_p) |
2946 | TYPE_UNSIGNED (t) = 1; | |
2947 | ||
2948 | return t; | |
2949 | } | |
2950 | ||
2951 | /* Allocate a TYPE_CODE_FLT type structure associated with OBJFILE. | |
2952 | BIT is the type size in bits; if BIT equals -1, the size is | |
2953 | determined by the floatformat. NAME is the type name. Set the | |
2954 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
2955 | ||
2956 | struct type * | |
2957 | init_float_type (struct objfile *objfile, | |
2958 | int bit, const char *name, | |
2959 | const struct floatformat **floatformats) | |
2960 | { | |
0db7851f UW |
2961 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
2962 | const struct floatformat *fmt = floatformats[gdbarch_byte_order (gdbarch)]; | |
19f392bc UW |
2963 | struct type *t; |
2964 | ||
0db7851f | 2965 | bit = verify_floatformat (bit, fmt); |
77b7c781 | 2966 | t = init_type (objfile, TYPE_CODE_FLT, bit, name); |
0db7851f | 2967 | TYPE_FLOATFORMAT (t) = fmt; |
19f392bc UW |
2968 | |
2969 | return t; | |
2970 | } | |
2971 | ||
2972 | /* Allocate a TYPE_CODE_DECFLOAT type structure associated with OBJFILE. | |
2973 | BIT is the type size in bits. NAME is the type name. */ | |
2974 | ||
2975 | struct type * | |
2976 | init_decfloat_type (struct objfile *objfile, int bit, const char *name) | |
2977 | { | |
2978 | struct type *t; | |
2979 | ||
77b7c781 | 2980 | t = init_type (objfile, TYPE_CODE_DECFLOAT, bit, name); |
19f392bc UW |
2981 | return t; |
2982 | } | |
2983 | ||
2984 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with OBJFILE. | |
2985 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
2986 | ||
2987 | struct type * | |
2988 | init_complex_type (struct objfile *objfile, | |
2989 | const char *name, struct type *target_type) | |
2990 | { | |
2991 | struct type *t; | |
2992 | ||
2993 | t = init_type (objfile, TYPE_CODE_COMPLEX, | |
77b7c781 | 2994 | 2 * TYPE_LENGTH (target_type) * TARGET_CHAR_BIT, name); |
19f392bc UW |
2995 | TYPE_TARGET_TYPE (t) = target_type; |
2996 | return t; | |
2997 | } | |
2998 | ||
2999 | /* Allocate a TYPE_CODE_PTR type structure associated with OBJFILE. | |
3000 | BIT is the pointer type size in bits. NAME is the type name. | |
3001 | TARGET_TYPE is the pointer target type. Always sets the pointer type's | |
3002 | TYPE_UNSIGNED flag. */ | |
3003 | ||
3004 | struct type * | |
3005 | init_pointer_type (struct objfile *objfile, | |
3006 | int bit, const char *name, struct type *target_type) | |
3007 | { | |
3008 | struct type *t; | |
3009 | ||
77b7c781 | 3010 | t = init_type (objfile, TYPE_CODE_PTR, bit, name); |
19f392bc UW |
3011 | TYPE_TARGET_TYPE (t) = target_type; |
3012 | TYPE_UNSIGNED (t) = 1; | |
3013 | return t; | |
3014 | } | |
3015 | ||
2b4424c3 TT |
3016 | /* See gdbtypes.h. */ |
3017 | ||
3018 | unsigned | |
3019 | type_raw_align (struct type *type) | |
3020 | { | |
3021 | if (type->align_log2 != 0) | |
3022 | return 1 << (type->align_log2 - 1); | |
3023 | return 0; | |
3024 | } | |
3025 | ||
3026 | /* See gdbtypes.h. */ | |
3027 | ||
3028 | unsigned | |
3029 | type_align (struct type *type) | |
3030 | { | |
3031 | unsigned raw_align = type_raw_align (type); | |
3032 | if (raw_align != 0) | |
3033 | return raw_align; | |
3034 | ||
3035 | ULONGEST align = 0; | |
3036 | switch (TYPE_CODE (type)) | |
3037 | { | |
3038 | case TYPE_CODE_PTR: | |
3039 | case TYPE_CODE_FUNC: | |
3040 | case TYPE_CODE_FLAGS: | |
3041 | case TYPE_CODE_INT: | |
3042 | case TYPE_CODE_FLT: | |
3043 | case TYPE_CODE_ENUM: | |
3044 | case TYPE_CODE_REF: | |
3045 | case TYPE_CODE_RVALUE_REF: | |
3046 | case TYPE_CODE_CHAR: | |
3047 | case TYPE_CODE_BOOL: | |
3048 | case TYPE_CODE_DECFLOAT: | |
3049 | { | |
3050 | struct gdbarch *arch = get_type_arch (type); | |
3051 | align = gdbarch_type_align (arch, type); | |
3052 | } | |
3053 | break; | |
3054 | ||
3055 | case TYPE_CODE_ARRAY: | |
3056 | case TYPE_CODE_COMPLEX: | |
3057 | case TYPE_CODE_TYPEDEF: | |
3058 | align = type_align (TYPE_TARGET_TYPE (type)); | |
3059 | break; | |
3060 | ||
3061 | case TYPE_CODE_STRUCT: | |
3062 | case TYPE_CODE_UNION: | |
3063 | { | |
3064 | if (TYPE_NFIELDS (type) == 0) | |
3065 | { | |
3066 | /* An empty struct has alignment 1. */ | |
3067 | align = 1; | |
3068 | break; | |
3069 | } | |
3070 | for (unsigned i = 0; i < TYPE_NFIELDS (type); ++i) | |
3071 | { | |
3072 | ULONGEST f_align = type_align (TYPE_FIELD_TYPE (type, i)); | |
3073 | if (f_align == 0) | |
3074 | { | |
3075 | /* Don't pretend we know something we don't. */ | |
3076 | align = 0; | |
3077 | break; | |
3078 | } | |
3079 | if (f_align > align) | |
3080 | align = f_align; | |
3081 | } | |
3082 | } | |
3083 | break; | |
3084 | ||
3085 | case TYPE_CODE_SET: | |
3086 | case TYPE_CODE_RANGE: | |
3087 | case TYPE_CODE_STRING: | |
3088 | /* Not sure what to do here, and these can't appear in C or C++ | |
3089 | anyway. */ | |
3090 | break; | |
3091 | ||
3092 | case TYPE_CODE_METHODPTR: | |
3093 | case TYPE_CODE_MEMBERPTR: | |
3094 | align = TYPE_LENGTH (type); | |
3095 | break; | |
3096 | ||
3097 | case TYPE_CODE_VOID: | |
3098 | align = 1; | |
3099 | break; | |
3100 | ||
3101 | case TYPE_CODE_ERROR: | |
3102 | case TYPE_CODE_METHOD: | |
3103 | default: | |
3104 | break; | |
3105 | } | |
3106 | ||
3107 | if ((align & (align - 1)) != 0) | |
3108 | { | |
3109 | /* Not a power of 2, so pass. */ | |
3110 | align = 0; | |
3111 | } | |
3112 | ||
3113 | return align; | |
3114 | } | |
3115 | ||
3116 | /* See gdbtypes.h. */ | |
3117 | ||
3118 | bool | |
3119 | set_type_align (struct type *type, ULONGEST align) | |
3120 | { | |
3121 | /* Must be a power of 2. Zero is ok. */ | |
3122 | gdb_assert ((align & (align - 1)) == 0); | |
3123 | ||
3124 | unsigned result = 0; | |
3125 | while (align != 0) | |
3126 | { | |
3127 | ++result; | |
3128 | align >>= 1; | |
3129 | } | |
3130 | ||
3131 | if (result >= (1 << TYPE_ALIGN_BITS)) | |
3132 | return false; | |
3133 | ||
3134 | type->align_log2 = result; | |
3135 | return true; | |
3136 | } | |
3137 | ||
5212577a DE |
3138 | \f |
3139 | /* Queries on types. */ | |
c906108c | 3140 | |
c906108c | 3141 | int |
fba45db2 | 3142 | can_dereference (struct type *t) |
c906108c | 3143 | { |
7ba81444 MS |
3144 | /* FIXME: Should we return true for references as well as |
3145 | pointers? */ | |
f168693b | 3146 | t = check_typedef (t); |
c906108c SS |
3147 | return |
3148 | (t != NULL | |
3149 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
3150 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
3151 | } | |
3152 | ||
adf40b2e | 3153 | int |
fba45db2 | 3154 | is_integral_type (struct type *t) |
adf40b2e | 3155 | { |
f168693b | 3156 | t = check_typedef (t); |
adf40b2e JM |
3157 | return |
3158 | ((t != NULL) | |
d4f3574e SS |
3159 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
3160 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
4f2aea11 | 3161 | || (TYPE_CODE (t) == TYPE_CODE_FLAGS) |
d4f3574e SS |
3162 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) |
3163 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
3164 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
3165 | } |
3166 | ||
70100014 UW |
3167 | int |
3168 | is_floating_type (struct type *t) | |
3169 | { | |
3170 | t = check_typedef (t); | |
3171 | return | |
3172 | ((t != NULL) | |
3173 | && ((TYPE_CODE (t) == TYPE_CODE_FLT) | |
3174 | || (TYPE_CODE (t) == TYPE_CODE_DECFLOAT))); | |
3175 | } | |
3176 | ||
e09342b5 TJB |
3177 | /* Return true if TYPE is scalar. */ |
3178 | ||
220475ed | 3179 | int |
e09342b5 TJB |
3180 | is_scalar_type (struct type *type) |
3181 | { | |
f168693b | 3182 | type = check_typedef (type); |
e09342b5 TJB |
3183 | |
3184 | switch (TYPE_CODE (type)) | |
3185 | { | |
3186 | case TYPE_CODE_ARRAY: | |
3187 | case TYPE_CODE_STRUCT: | |
3188 | case TYPE_CODE_UNION: | |
3189 | case TYPE_CODE_SET: | |
3190 | case TYPE_CODE_STRING: | |
e09342b5 TJB |
3191 | return 0; |
3192 | default: | |
3193 | return 1; | |
3194 | } | |
3195 | } | |
3196 | ||
3197 | /* Return true if T is scalar, or a composite type which in practice has | |
90e4670f TJB |
3198 | the memory layout of a scalar type. E.g., an array or struct with only |
3199 | one scalar element inside it, or a union with only scalar elements. */ | |
e09342b5 TJB |
3200 | |
3201 | int | |
3202 | is_scalar_type_recursive (struct type *t) | |
3203 | { | |
f168693b | 3204 | t = check_typedef (t); |
e09342b5 TJB |
3205 | |
3206 | if (is_scalar_type (t)) | |
3207 | return 1; | |
3208 | /* Are we dealing with an array or string of known dimensions? */ | |
3209 | else if ((TYPE_CODE (t) == TYPE_CODE_ARRAY | |
3210 | || TYPE_CODE (t) == TYPE_CODE_STRING) && TYPE_NFIELDS (t) == 1 | |
3211 | && TYPE_CODE (TYPE_INDEX_TYPE (t)) == TYPE_CODE_RANGE) | |
3212 | { | |
3213 | LONGEST low_bound, high_bound; | |
3214 | struct type *elt_type = check_typedef (TYPE_TARGET_TYPE (t)); | |
3215 | ||
3216 | get_discrete_bounds (TYPE_INDEX_TYPE (t), &low_bound, &high_bound); | |
3217 | ||
3218 | return high_bound == low_bound && is_scalar_type_recursive (elt_type); | |
3219 | } | |
3220 | /* Are we dealing with a struct with one element? */ | |
3221 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT && TYPE_NFIELDS (t) == 1) | |
3222 | return is_scalar_type_recursive (TYPE_FIELD_TYPE (t, 0)); | |
3223 | else if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
3224 | { | |
3225 | int i, n = TYPE_NFIELDS (t); | |
3226 | ||
3227 | /* If all elements of the union are scalar, then the union is scalar. */ | |
3228 | for (i = 0; i < n; i++) | |
3229 | if (!is_scalar_type_recursive (TYPE_FIELD_TYPE (t, i))) | |
3230 | return 0; | |
3231 | ||
3232 | return 1; | |
3233 | } | |
3234 | ||
3235 | return 0; | |
3236 | } | |
3237 | ||
6c659fc2 SC |
3238 | /* Return true is T is a class or a union. False otherwise. */ |
3239 | ||
3240 | int | |
3241 | class_or_union_p (const struct type *t) | |
3242 | { | |
3243 | return (TYPE_CODE (t) == TYPE_CODE_STRUCT | |
3244 | || TYPE_CODE (t) == TYPE_CODE_UNION); | |
3245 | } | |
3246 | ||
4e8f195d TT |
3247 | /* A helper function which returns true if types A and B represent the |
3248 | "same" class type. This is true if the types have the same main | |
3249 | type, or the same name. */ | |
3250 | ||
3251 | int | |
3252 | class_types_same_p (const struct type *a, const struct type *b) | |
3253 | { | |
3254 | return (TYPE_MAIN_TYPE (a) == TYPE_MAIN_TYPE (b) | |
3255 | || (TYPE_NAME (a) && TYPE_NAME (b) | |
3256 | && !strcmp (TYPE_NAME (a), TYPE_NAME (b)))); | |
3257 | } | |
3258 | ||
a9d5ef47 SW |
3259 | /* If BASE is an ancestor of DCLASS return the distance between them. |
3260 | otherwise return -1; | |
3261 | eg: | |
3262 | ||
3263 | class A {}; | |
3264 | class B: public A {}; | |
3265 | class C: public B {}; | |
3266 | class D: C {}; | |
3267 | ||
3268 | distance_to_ancestor (A, A, 0) = 0 | |
3269 | distance_to_ancestor (A, B, 0) = 1 | |
3270 | distance_to_ancestor (A, C, 0) = 2 | |
3271 | distance_to_ancestor (A, D, 0) = 3 | |
3272 | ||
3273 | If PUBLIC is 1 then only public ancestors are considered, | |
3274 | and the function returns the distance only if BASE is a public ancestor | |
3275 | of DCLASS. | |
3276 | Eg: | |
3277 | ||
0963b4bd | 3278 | distance_to_ancestor (A, D, 1) = -1. */ |
c906108c | 3279 | |
0526b37a | 3280 | static int |
fe978cb0 | 3281 | distance_to_ancestor (struct type *base, struct type *dclass, int is_public) |
c906108c SS |
3282 | { |
3283 | int i; | |
a9d5ef47 | 3284 | int d; |
c5aa993b | 3285 | |
f168693b SM |
3286 | base = check_typedef (base); |
3287 | dclass = check_typedef (dclass); | |
c906108c | 3288 | |
4e8f195d | 3289 | if (class_types_same_p (base, dclass)) |
a9d5ef47 | 3290 | return 0; |
c906108c SS |
3291 | |
3292 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
4e8f195d | 3293 | { |
fe978cb0 | 3294 | if (is_public && ! BASETYPE_VIA_PUBLIC (dclass, i)) |
0526b37a SW |
3295 | continue; |
3296 | ||
fe978cb0 | 3297 | d = distance_to_ancestor (base, TYPE_BASECLASS (dclass, i), is_public); |
a9d5ef47 SW |
3298 | if (d >= 0) |
3299 | return 1 + d; | |
4e8f195d | 3300 | } |
c906108c | 3301 | |
a9d5ef47 | 3302 | return -1; |
c906108c | 3303 | } |
4e8f195d | 3304 | |
0526b37a SW |
3305 | /* Check whether BASE is an ancestor or base class or DCLASS |
3306 | Return 1 if so, and 0 if not. | |
3307 | Note: If BASE and DCLASS are of the same type, this function | |
3308 | will return 1. So for some class A, is_ancestor (A, A) will | |
3309 | return 1. */ | |
3310 | ||
3311 | int | |
3312 | is_ancestor (struct type *base, struct type *dclass) | |
3313 | { | |
a9d5ef47 | 3314 | return distance_to_ancestor (base, dclass, 0) >= 0; |
0526b37a SW |
3315 | } |
3316 | ||
4e8f195d TT |
3317 | /* Like is_ancestor, but only returns true when BASE is a public |
3318 | ancestor of DCLASS. */ | |
3319 | ||
3320 | int | |
3321 | is_public_ancestor (struct type *base, struct type *dclass) | |
3322 | { | |
a9d5ef47 | 3323 | return distance_to_ancestor (base, dclass, 1) >= 0; |
4e8f195d TT |
3324 | } |
3325 | ||
3326 | /* A helper function for is_unique_ancestor. */ | |
3327 | ||
3328 | static int | |
3329 | is_unique_ancestor_worker (struct type *base, struct type *dclass, | |
3330 | int *offset, | |
8af8e3bc PA |
3331 | const gdb_byte *valaddr, int embedded_offset, |
3332 | CORE_ADDR address, struct value *val) | |
4e8f195d TT |
3333 | { |
3334 | int i, count = 0; | |
3335 | ||
f168693b SM |
3336 | base = check_typedef (base); |
3337 | dclass = check_typedef (dclass); | |
4e8f195d TT |
3338 | |
3339 | for (i = 0; i < TYPE_N_BASECLASSES (dclass) && count < 2; ++i) | |
3340 | { | |
8af8e3bc PA |
3341 | struct type *iter; |
3342 | int this_offset; | |
4e8f195d | 3343 | |
8af8e3bc PA |
3344 | iter = check_typedef (TYPE_BASECLASS (dclass, i)); |
3345 | ||
3346 | this_offset = baseclass_offset (dclass, i, valaddr, embedded_offset, | |
3347 | address, val); | |
4e8f195d TT |
3348 | |
3349 | if (class_types_same_p (base, iter)) | |
3350 | { | |
3351 | /* If this is the first subclass, set *OFFSET and set count | |
3352 | to 1. Otherwise, if this is at the same offset as | |
3353 | previous instances, do nothing. Otherwise, increment | |
3354 | count. */ | |
3355 | if (*offset == -1) | |
3356 | { | |
3357 | *offset = this_offset; | |
3358 | count = 1; | |
3359 | } | |
3360 | else if (this_offset == *offset) | |
3361 | { | |
3362 | /* Nothing. */ | |
3363 | } | |
3364 | else | |
3365 | ++count; | |
3366 | } | |
3367 | else | |
3368 | count += is_unique_ancestor_worker (base, iter, offset, | |
8af8e3bc PA |
3369 | valaddr, |
3370 | embedded_offset + this_offset, | |
3371 | address, val); | |
4e8f195d TT |
3372 | } |
3373 | ||
3374 | return count; | |
3375 | } | |
3376 | ||
3377 | /* Like is_ancestor, but only returns true if BASE is a unique base | |
3378 | class of the type of VAL. */ | |
3379 | ||
3380 | int | |
3381 | is_unique_ancestor (struct type *base, struct value *val) | |
3382 | { | |
3383 | int offset = -1; | |
3384 | ||
3385 | return is_unique_ancestor_worker (base, value_type (val), &offset, | |
8af8e3bc PA |
3386 | value_contents_for_printing (val), |
3387 | value_embedded_offset (val), | |
3388 | value_address (val), val) == 1; | |
4e8f195d TT |
3389 | } |
3390 | ||
c906108c | 3391 | \f |
5212577a | 3392 | /* Overload resolution. */ |
c906108c | 3393 | |
6403aeea SW |
3394 | /* Return the sum of the rank of A with the rank of B. */ |
3395 | ||
3396 | struct rank | |
3397 | sum_ranks (struct rank a, struct rank b) | |
3398 | { | |
3399 | struct rank c; | |
3400 | c.rank = a.rank + b.rank; | |
a9d5ef47 | 3401 | c.subrank = a.subrank + b.subrank; |
6403aeea SW |
3402 | return c; |
3403 | } | |
3404 | ||
3405 | /* Compare rank A and B and return: | |
3406 | 0 if a = b | |
3407 | 1 if a is better than b | |
3408 | -1 if b is better than a. */ | |
3409 | ||
3410 | int | |
3411 | compare_ranks (struct rank a, struct rank b) | |
3412 | { | |
3413 | if (a.rank == b.rank) | |
a9d5ef47 SW |
3414 | { |
3415 | if (a.subrank == b.subrank) | |
3416 | return 0; | |
3417 | if (a.subrank < b.subrank) | |
3418 | return 1; | |
3419 | if (a.subrank > b.subrank) | |
3420 | return -1; | |
3421 | } | |
6403aeea SW |
3422 | |
3423 | if (a.rank < b.rank) | |
3424 | return 1; | |
3425 | ||
0963b4bd | 3426 | /* a.rank > b.rank */ |
6403aeea SW |
3427 | return -1; |
3428 | } | |
c5aa993b | 3429 | |
0963b4bd | 3430 | /* Functions for overload resolution begin here. */ |
c906108c SS |
3431 | |
3432 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
3433 | 0 => A and B are identical |
3434 | 1 => A and B are incomparable | |
3435 | 2 => A is better than B | |
3436 | 3 => A is worse than B */ | |
c906108c SS |
3437 | |
3438 | int | |
fba45db2 | 3439 | compare_badness (struct badness_vector *a, struct badness_vector *b) |
c906108c SS |
3440 | { |
3441 | int i; | |
3442 | int tmp; | |
c5aa993b JM |
3443 | short found_pos = 0; /* any positives in c? */ |
3444 | short found_neg = 0; /* any negatives in c? */ | |
3445 | ||
3446 | /* differing lengths => incomparable */ | |
c906108c SS |
3447 | if (a->length != b->length) |
3448 | return 1; | |
3449 | ||
c5aa993b JM |
3450 | /* Subtract b from a */ |
3451 | for (i = 0; i < a->length; i++) | |
c906108c | 3452 | { |
6403aeea | 3453 | tmp = compare_ranks (b->rank[i], a->rank[i]); |
c906108c | 3454 | if (tmp > 0) |
c5aa993b | 3455 | found_pos = 1; |
c906108c | 3456 | else if (tmp < 0) |
c5aa993b | 3457 | found_neg = 1; |
c906108c SS |
3458 | } |
3459 | ||
3460 | if (found_pos) | |
3461 | { | |
3462 | if (found_neg) | |
c5aa993b | 3463 | return 1; /* incomparable */ |
c906108c | 3464 | else |
c5aa993b | 3465 | return 3; /* A > B */ |
c906108c | 3466 | } |
c5aa993b JM |
3467 | else |
3468 | /* no positives */ | |
c906108c SS |
3469 | { |
3470 | if (found_neg) | |
c5aa993b | 3471 | return 2; /* A < B */ |
c906108c | 3472 | else |
c5aa993b | 3473 | return 0; /* A == B */ |
c906108c SS |
3474 | } |
3475 | } | |
3476 | ||
7ba81444 MS |
3477 | /* Rank a function by comparing its parameter types (PARMS, length |
3478 | NPARMS), to the types of an argument list (ARGS, length NARGS). | |
3479 | Return a pointer to a badness vector. This has NARGS + 1 | |
3480 | entries. */ | |
c906108c SS |
3481 | |
3482 | struct badness_vector * | |
7ba81444 | 3483 | rank_function (struct type **parms, int nparms, |
da096638 | 3484 | struct value **args, int nargs) |
c906108c SS |
3485 | { |
3486 | int i; | |
8d749320 | 3487 | struct badness_vector *bv = XNEW (struct badness_vector); |
c906108c SS |
3488 | int min_len = nparms < nargs ? nparms : nargs; |
3489 | ||
0963b4bd | 3490 | bv->length = nargs + 1; /* add 1 for the length-match rank. */ |
c4e54771 | 3491 | bv->rank = XNEWVEC (struct rank, nargs + 1); |
c906108c SS |
3492 | |
3493 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 3494 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 3495 | |
c906108c | 3496 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
3497 | arguments and ellipsis parameter lists, we should consider those |
3498 | and rank the length-match more finely. */ | |
c906108c | 3499 | |
6403aeea SW |
3500 | LENGTH_MATCH (bv) = (nargs != nparms) |
3501 | ? LENGTH_MISMATCH_BADNESS | |
3502 | : EXACT_MATCH_BADNESS; | |
c906108c | 3503 | |
0963b4bd | 3504 | /* Now rank all the parameters of the candidate function. */ |
74cc24b0 | 3505 | for (i = 1; i <= min_len; i++) |
da096638 KS |
3506 | bv->rank[i] = rank_one_type (parms[i - 1], value_type (args[i - 1]), |
3507 | args[i - 1]); | |
c906108c | 3508 | |
0963b4bd | 3509 | /* If more arguments than parameters, add dummy entries. */ |
c5aa993b | 3510 | for (i = min_len + 1; i <= nargs; i++) |
c906108c SS |
3511 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
3512 | ||
3513 | return bv; | |
3514 | } | |
3515 | ||
973ccf8b DJ |
3516 | /* Compare the names of two integer types, assuming that any sign |
3517 | qualifiers have been checked already. We do it this way because | |
3518 | there may be an "int" in the name of one of the types. */ | |
3519 | ||
3520 | static int | |
3521 | integer_types_same_name_p (const char *first, const char *second) | |
3522 | { | |
3523 | int first_p, second_p; | |
3524 | ||
7ba81444 MS |
3525 | /* If both are shorts, return 1; if neither is a short, keep |
3526 | checking. */ | |
973ccf8b DJ |
3527 | first_p = (strstr (first, "short") != NULL); |
3528 | second_p = (strstr (second, "short") != NULL); | |
3529 | if (first_p && second_p) | |
3530 | return 1; | |
3531 | if (first_p || second_p) | |
3532 | return 0; | |
3533 | ||
3534 | /* Likewise for long. */ | |
3535 | first_p = (strstr (first, "long") != NULL); | |
3536 | second_p = (strstr (second, "long") != NULL); | |
3537 | if (first_p && second_p) | |
3538 | return 1; | |
3539 | if (first_p || second_p) | |
3540 | return 0; | |
3541 | ||
3542 | /* Likewise for char. */ | |
3543 | first_p = (strstr (first, "char") != NULL); | |
3544 | second_p = (strstr (second, "char") != NULL); | |
3545 | if (first_p && second_p) | |
3546 | return 1; | |
3547 | if (first_p || second_p) | |
3548 | return 0; | |
3549 | ||
3550 | /* They must both be ints. */ | |
3551 | return 1; | |
3552 | } | |
3553 | ||
7062b0a0 SW |
3554 | /* Compares type A to type B returns 1 if the represent the same type |
3555 | 0 otherwise. */ | |
3556 | ||
bd69fc68 | 3557 | int |
7062b0a0 SW |
3558 | types_equal (struct type *a, struct type *b) |
3559 | { | |
3560 | /* Identical type pointers. */ | |
3561 | /* However, this still doesn't catch all cases of same type for b | |
3562 | and a. The reason is that builtin types are different from | |
3563 | the same ones constructed from the object. */ | |
3564 | if (a == b) | |
3565 | return 1; | |
3566 | ||
3567 | /* Resolve typedefs */ | |
3568 | if (TYPE_CODE (a) == TYPE_CODE_TYPEDEF) | |
3569 | a = check_typedef (a); | |
3570 | if (TYPE_CODE (b) == TYPE_CODE_TYPEDEF) | |
3571 | b = check_typedef (b); | |
3572 | ||
3573 | /* If after resolving typedefs a and b are not of the same type | |
3574 | code then they are not equal. */ | |
3575 | if (TYPE_CODE (a) != TYPE_CODE (b)) | |
3576 | return 0; | |
3577 | ||
3578 | /* If a and b are both pointers types or both reference types then | |
3579 | they are equal of the same type iff the objects they refer to are | |
3580 | of the same type. */ | |
3581 | if (TYPE_CODE (a) == TYPE_CODE_PTR | |
3582 | || TYPE_CODE (a) == TYPE_CODE_REF) | |
3583 | return types_equal (TYPE_TARGET_TYPE (a), | |
3584 | TYPE_TARGET_TYPE (b)); | |
3585 | ||
0963b4bd | 3586 | /* Well, damnit, if the names are exactly the same, I'll say they |
7062b0a0 SW |
3587 | are exactly the same. This happens when we generate method |
3588 | stubs. The types won't point to the same address, but they | |
0963b4bd | 3589 | really are the same. */ |
7062b0a0 SW |
3590 | |
3591 | if (TYPE_NAME (a) && TYPE_NAME (b) | |
3592 | && strcmp (TYPE_NAME (a), TYPE_NAME (b)) == 0) | |
3593 | return 1; | |
3594 | ||
3595 | /* Check if identical after resolving typedefs. */ | |
3596 | if (a == b) | |
3597 | return 1; | |
3598 | ||
9ce98649 TT |
3599 | /* Two function types are equal if their argument and return types |
3600 | are equal. */ | |
3601 | if (TYPE_CODE (a) == TYPE_CODE_FUNC) | |
3602 | { | |
3603 | int i; | |
3604 | ||
3605 | if (TYPE_NFIELDS (a) != TYPE_NFIELDS (b)) | |
3606 | return 0; | |
3607 | ||
3608 | if (!types_equal (TYPE_TARGET_TYPE (a), TYPE_TARGET_TYPE (b))) | |
3609 | return 0; | |
3610 | ||
3611 | for (i = 0; i < TYPE_NFIELDS (a); ++i) | |
3612 | if (!types_equal (TYPE_FIELD_TYPE (a, i), TYPE_FIELD_TYPE (b, i))) | |
3613 | return 0; | |
3614 | ||
3615 | return 1; | |
3616 | } | |
3617 | ||
7062b0a0 SW |
3618 | return 0; |
3619 | } | |
ca092b61 DE |
3620 | \f |
3621 | /* Deep comparison of types. */ | |
3622 | ||
3623 | /* An entry in the type-equality bcache. */ | |
3624 | ||
3625 | typedef struct type_equality_entry | |
3626 | { | |
3627 | struct type *type1, *type2; | |
3628 | } type_equality_entry_d; | |
3629 | ||
3630 | DEF_VEC_O (type_equality_entry_d); | |
3631 | ||
3632 | /* A helper function to compare two strings. Returns 1 if they are | |
3633 | the same, 0 otherwise. Handles NULLs properly. */ | |
3634 | ||
3635 | static int | |
3636 | compare_maybe_null_strings (const char *s, const char *t) | |
3637 | { | |
3638 | if (s == NULL && t != NULL) | |
3639 | return 0; | |
3640 | else if (s != NULL && t == NULL) | |
3641 | return 0; | |
3642 | else if (s == NULL && t== NULL) | |
3643 | return 1; | |
3644 | return strcmp (s, t) == 0; | |
3645 | } | |
3646 | ||
3647 | /* A helper function for check_types_worklist that checks two types for | |
3648 | "deep" equality. Returns non-zero if the types are considered the | |
3649 | same, zero otherwise. */ | |
3650 | ||
3651 | static int | |
3652 | check_types_equal (struct type *type1, struct type *type2, | |
3653 | VEC (type_equality_entry_d) **worklist) | |
3654 | { | |
f168693b SM |
3655 | type1 = check_typedef (type1); |
3656 | type2 = check_typedef (type2); | |
ca092b61 DE |
3657 | |
3658 | if (type1 == type2) | |
3659 | return 1; | |
3660 | ||
3661 | if (TYPE_CODE (type1) != TYPE_CODE (type2) | |
3662 | || TYPE_LENGTH (type1) != TYPE_LENGTH (type2) | |
3663 | || TYPE_UNSIGNED (type1) != TYPE_UNSIGNED (type2) | |
3664 | || TYPE_NOSIGN (type1) != TYPE_NOSIGN (type2) | |
3665 | || TYPE_VARARGS (type1) != TYPE_VARARGS (type2) | |
3666 | || TYPE_VECTOR (type1) != TYPE_VECTOR (type2) | |
3667 | || TYPE_NOTTEXT (type1) != TYPE_NOTTEXT (type2) | |
3668 | || TYPE_INSTANCE_FLAGS (type1) != TYPE_INSTANCE_FLAGS (type2) | |
3669 | || TYPE_NFIELDS (type1) != TYPE_NFIELDS (type2)) | |
3670 | return 0; | |
3671 | ||
3672 | if (!compare_maybe_null_strings (TYPE_TAG_NAME (type1), | |
3673 | TYPE_TAG_NAME (type2))) | |
3674 | return 0; | |
3675 | if (!compare_maybe_null_strings (TYPE_NAME (type1), TYPE_NAME (type2))) | |
3676 | return 0; | |
3677 | ||
3678 | if (TYPE_CODE (type1) == TYPE_CODE_RANGE) | |
3679 | { | |
0f59d5fc | 3680 | if (*TYPE_RANGE_DATA (type1) != *TYPE_RANGE_DATA (type2)) |
ca092b61 DE |
3681 | return 0; |
3682 | } | |
3683 | else | |
3684 | { | |
3685 | int i; | |
3686 | ||
3687 | for (i = 0; i < TYPE_NFIELDS (type1); ++i) | |
3688 | { | |
3689 | const struct field *field1 = &TYPE_FIELD (type1, i); | |
3690 | const struct field *field2 = &TYPE_FIELD (type2, i); | |
3691 | struct type_equality_entry entry; | |
3692 | ||
3693 | if (FIELD_ARTIFICIAL (*field1) != FIELD_ARTIFICIAL (*field2) | |
3694 | || FIELD_BITSIZE (*field1) != FIELD_BITSIZE (*field2) | |
3695 | || FIELD_LOC_KIND (*field1) != FIELD_LOC_KIND (*field2)) | |
3696 | return 0; | |
3697 | if (!compare_maybe_null_strings (FIELD_NAME (*field1), | |
3698 | FIELD_NAME (*field2))) | |
3699 | return 0; | |
3700 | switch (FIELD_LOC_KIND (*field1)) | |
3701 | { | |
3702 | case FIELD_LOC_KIND_BITPOS: | |
3703 | if (FIELD_BITPOS (*field1) != FIELD_BITPOS (*field2)) | |
3704 | return 0; | |
3705 | break; | |
3706 | case FIELD_LOC_KIND_ENUMVAL: | |
3707 | if (FIELD_ENUMVAL (*field1) != FIELD_ENUMVAL (*field2)) | |
3708 | return 0; | |
3709 | break; | |
3710 | case FIELD_LOC_KIND_PHYSADDR: | |
3711 | if (FIELD_STATIC_PHYSADDR (*field1) | |
3712 | != FIELD_STATIC_PHYSADDR (*field2)) | |
3713 | return 0; | |
3714 | break; | |
3715 | case FIELD_LOC_KIND_PHYSNAME: | |
3716 | if (!compare_maybe_null_strings (FIELD_STATIC_PHYSNAME (*field1), | |
3717 | FIELD_STATIC_PHYSNAME (*field2))) | |
3718 | return 0; | |
3719 | break; | |
3720 | case FIELD_LOC_KIND_DWARF_BLOCK: | |
3721 | { | |
3722 | struct dwarf2_locexpr_baton *block1, *block2; | |
3723 | ||
3724 | block1 = FIELD_DWARF_BLOCK (*field1); | |
3725 | block2 = FIELD_DWARF_BLOCK (*field2); | |
3726 | if (block1->per_cu != block2->per_cu | |
3727 | || block1->size != block2->size | |
3728 | || memcmp (block1->data, block2->data, block1->size) != 0) | |
3729 | return 0; | |
3730 | } | |
3731 | break; | |
3732 | default: | |
3733 | internal_error (__FILE__, __LINE__, _("Unsupported field kind " | |
3734 | "%d by check_types_equal"), | |
3735 | FIELD_LOC_KIND (*field1)); | |
3736 | } | |
3737 | ||
3738 | entry.type1 = FIELD_TYPE (*field1); | |
3739 | entry.type2 = FIELD_TYPE (*field2); | |
3740 | VEC_safe_push (type_equality_entry_d, *worklist, &entry); | |
3741 | } | |
3742 | } | |
3743 | ||
3744 | if (TYPE_TARGET_TYPE (type1) != NULL) | |
3745 | { | |
3746 | struct type_equality_entry entry; | |
3747 | ||
3748 | if (TYPE_TARGET_TYPE (type2) == NULL) | |
3749 | return 0; | |
3750 | ||
3751 | entry.type1 = TYPE_TARGET_TYPE (type1); | |
3752 | entry.type2 = TYPE_TARGET_TYPE (type2); | |
3753 | VEC_safe_push (type_equality_entry_d, *worklist, &entry); | |
3754 | } | |
3755 | else if (TYPE_TARGET_TYPE (type2) != NULL) | |
3756 | return 0; | |
3757 | ||
3758 | return 1; | |
3759 | } | |
3760 | ||
3761 | /* Check types on a worklist for equality. Returns zero if any pair | |
3762 | is not equal, non-zero if they are all considered equal. */ | |
3763 | ||
3764 | static int | |
3765 | check_types_worklist (VEC (type_equality_entry_d) **worklist, | |
3766 | struct bcache *cache) | |
3767 | { | |
3768 | while (!VEC_empty (type_equality_entry_d, *worklist)) | |
3769 | { | |
3770 | struct type_equality_entry entry; | |
3771 | int added; | |
3772 | ||
3773 | entry = *VEC_last (type_equality_entry_d, *worklist); | |
3774 | VEC_pop (type_equality_entry_d, *worklist); | |
3775 | ||
3776 | /* If the type pair has already been visited, we know it is | |
3777 | ok. */ | |
3778 | bcache_full (&entry, sizeof (entry), cache, &added); | |
3779 | if (!added) | |
3780 | continue; | |
3781 | ||
3782 | if (check_types_equal (entry.type1, entry.type2, worklist) == 0) | |
3783 | return 0; | |
3784 | } | |
7062b0a0 | 3785 | |
ca092b61 DE |
3786 | return 1; |
3787 | } | |
3788 | ||
3789 | /* Return non-zero if types TYPE1 and TYPE2 are equal, as determined by a | |
3790 | "deep comparison". Otherwise return zero. */ | |
3791 | ||
3792 | int | |
3793 | types_deeply_equal (struct type *type1, struct type *type2) | |
3794 | { | |
6c63c96a | 3795 | struct gdb_exception except = exception_none; |
ca092b61 DE |
3796 | int result = 0; |
3797 | struct bcache *cache; | |
3798 | VEC (type_equality_entry_d) *worklist = NULL; | |
3799 | struct type_equality_entry entry; | |
3800 | ||
3801 | gdb_assert (type1 != NULL && type2 != NULL); | |
3802 | ||
3803 | /* Early exit for the simple case. */ | |
3804 | if (type1 == type2) | |
3805 | return 1; | |
3806 | ||
3807 | cache = bcache_xmalloc (NULL, NULL); | |
3808 | ||
3809 | entry.type1 = type1; | |
3810 | entry.type2 = type2; | |
3811 | VEC_safe_push (type_equality_entry_d, worklist, &entry); | |
3812 | ||
6c63c96a PA |
3813 | /* check_types_worklist calls several nested helper functions, some |
3814 | of which can raise a GDB exception, so we just check and rethrow | |
3815 | here. If there is a GDB exception, a comparison is not capable | |
3816 | (or trusted), so exit. */ | |
492d29ea | 3817 | TRY |
ca092b61 DE |
3818 | { |
3819 | result = check_types_worklist (&worklist, cache); | |
3820 | } | |
6c63c96a | 3821 | CATCH (ex, RETURN_MASK_ALL) |
492d29ea | 3822 | { |
6c63c96a | 3823 | except = ex; |
492d29ea PA |
3824 | } |
3825 | END_CATCH | |
ca092b61 | 3826 | |
6c63c96a PA |
3827 | bcache_xfree (cache); |
3828 | VEC_free (type_equality_entry_d, worklist); | |
3829 | ||
3830 | /* Rethrow if there was a problem. */ | |
3831 | if (except.reason < 0) | |
3832 | throw_exception (except); | |
3833 | ||
ca092b61 DE |
3834 | return result; |
3835 | } | |
3f2f83dd KB |
3836 | |
3837 | /* Allocated status of type TYPE. Return zero if type TYPE is allocated. | |
3838 | Otherwise return one. */ | |
3839 | ||
3840 | int | |
3841 | type_not_allocated (const struct type *type) | |
3842 | { | |
3843 | struct dynamic_prop *prop = TYPE_ALLOCATED_PROP (type); | |
3844 | ||
3845 | return (prop && TYPE_DYN_PROP_KIND (prop) == PROP_CONST | |
3846 | && !TYPE_DYN_PROP_ADDR (prop)); | |
3847 | } | |
3848 | ||
3849 | /* Associated status of type TYPE. Return zero if type TYPE is associated. | |
3850 | Otherwise return one. */ | |
3851 | ||
3852 | int | |
3853 | type_not_associated (const struct type *type) | |
3854 | { | |
3855 | struct dynamic_prop *prop = TYPE_ASSOCIATED_PROP (type); | |
3856 | ||
3857 | return (prop && TYPE_DYN_PROP_KIND (prop) == PROP_CONST | |
3858 | && !TYPE_DYN_PROP_ADDR (prop)); | |
3859 | } | |
ca092b61 | 3860 | \f |
c906108c SS |
3861 | /* Compare one type (PARM) for compatibility with another (ARG). |
3862 | * PARM is intended to be the parameter type of a function; and | |
3863 | * ARG is the supplied argument's type. This function tests if | |
3864 | * the latter can be converted to the former. | |
da096638 | 3865 | * VALUE is the argument's value or NULL if none (or called recursively) |
c906108c SS |
3866 | * |
3867 | * Return 0 if they are identical types; | |
3868 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 MS |
3869 | * PARM is to ARG. The higher the return value, the worse the match. |
3870 | * Generally the "bad" conversions are all uniformly assigned a 100. */ | |
c906108c | 3871 | |
6403aeea | 3872 | struct rank |
da096638 | 3873 | rank_one_type (struct type *parm, struct type *arg, struct value *value) |
c906108c | 3874 | { |
a9d5ef47 | 3875 | struct rank rank = {0,0}; |
7062b0a0 | 3876 | |
c906108c SS |
3877 | /* Resolve typedefs */ |
3878 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
3879 | parm = check_typedef (parm); | |
3880 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
3881 | arg = check_typedef (arg); | |
3882 | ||
e15c3eb4 | 3883 | if (TYPE_IS_REFERENCE (parm) && value != NULL) |
15c0a2a9 | 3884 | { |
e15c3eb4 KS |
3885 | if (VALUE_LVAL (value) == not_lval) |
3886 | { | |
3887 | /* Rvalues should preferably bind to rvalue references or const | |
3888 | lvalue references. */ | |
3889 | if (TYPE_CODE (parm) == TYPE_CODE_RVALUE_REF) | |
3890 | rank.subrank = REFERENCE_CONVERSION_RVALUE; | |
3891 | else if (TYPE_CONST (TYPE_TARGET_TYPE (parm))) | |
3892 | rank.subrank = REFERENCE_CONVERSION_CONST_LVALUE; | |
3893 | else | |
3894 | return INCOMPATIBLE_TYPE_BADNESS; | |
3895 | return sum_ranks (rank, REFERENCE_CONVERSION_BADNESS); | |
3896 | } | |
3897 | else | |
3898 | { | |
3899 | /* Lvalues should prefer lvalue overloads. */ | |
3900 | if (TYPE_CODE (parm) == TYPE_CODE_RVALUE_REF) | |
3901 | { | |
3902 | rank.subrank = REFERENCE_CONVERSION_RVALUE; | |
3903 | return sum_ranks (rank, REFERENCE_CONVERSION_BADNESS); | |
3904 | } | |
3905 | } | |
15c0a2a9 AV |
3906 | } |
3907 | ||
3908 | if (types_equal (parm, arg)) | |
15c0a2a9 | 3909 | { |
e15c3eb4 KS |
3910 | struct type *t1 = parm; |
3911 | struct type *t2 = arg; | |
15c0a2a9 | 3912 | |
e15c3eb4 KS |
3913 | /* For pointers and references, compare target type. */ |
3914 | if (TYPE_CODE (parm) == TYPE_CODE_PTR || TYPE_IS_REFERENCE (parm)) | |
3915 | { | |
3916 | t1 = TYPE_TARGET_TYPE (parm); | |
3917 | t2 = TYPE_TARGET_TYPE (arg); | |
3918 | } | |
15c0a2a9 | 3919 | |
e15c3eb4 KS |
3920 | /* Make sure they are CV equal, too. */ |
3921 | if (TYPE_CONST (t1) != TYPE_CONST (t2)) | |
3922 | rank.subrank |= CV_CONVERSION_CONST; | |
3923 | if (TYPE_VOLATILE (t1) != TYPE_VOLATILE (t2)) | |
3924 | rank.subrank |= CV_CONVERSION_VOLATILE; | |
3925 | if (rank.subrank != 0) | |
3926 | return sum_ranks (CV_CONVERSION_BADNESS, rank); | |
3927 | return EXACT_MATCH_BADNESS; | |
15c0a2a9 AV |
3928 | } |
3929 | ||
db577aea | 3930 | /* See through references, since we can almost make non-references |
7ba81444 | 3931 | references. */ |
aa006118 AV |
3932 | |
3933 | if (TYPE_IS_REFERENCE (arg)) | |
da096638 | 3934 | return (sum_ranks (rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL), |
6403aeea | 3935 | REFERENCE_CONVERSION_BADNESS)); |
aa006118 | 3936 | if (TYPE_IS_REFERENCE (parm)) |
da096638 | 3937 | return (sum_ranks (rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL), |
6403aeea | 3938 | REFERENCE_CONVERSION_BADNESS)); |
5d161b24 | 3939 | if (overload_debug) |
7ba81444 MS |
3940 | /* Debugging only. */ |
3941 | fprintf_filtered (gdb_stderr, | |
3942 | "------ Arg is %s [%d], parm is %s [%d]\n", | |
3943 | TYPE_NAME (arg), TYPE_CODE (arg), | |
3944 | TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c | 3945 | |
0963b4bd | 3946 | /* x -> y means arg of type x being supplied for parameter of type y. */ |
c906108c SS |
3947 | |
3948 | switch (TYPE_CODE (parm)) | |
3949 | { | |
c5aa993b JM |
3950 | case TYPE_CODE_PTR: |
3951 | switch (TYPE_CODE (arg)) | |
3952 | { | |
3953 | case TYPE_CODE_PTR: | |
7062b0a0 SW |
3954 | |
3955 | /* Allowed pointer conversions are: | |
3956 | (a) pointer to void-pointer conversion. */ | |
3957 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) | |
c5aa993b | 3958 | return VOID_PTR_CONVERSION_BADNESS; |
7062b0a0 SW |
3959 | |
3960 | /* (b) pointer to ancestor-pointer conversion. */ | |
a9d5ef47 SW |
3961 | rank.subrank = distance_to_ancestor (TYPE_TARGET_TYPE (parm), |
3962 | TYPE_TARGET_TYPE (arg), | |
3963 | 0); | |
3964 | if (rank.subrank >= 0) | |
3965 | return sum_ranks (BASE_PTR_CONVERSION_BADNESS, rank); | |
7062b0a0 SW |
3966 | |
3967 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 3968 | case TYPE_CODE_ARRAY: |
e15c3eb4 KS |
3969 | { |
3970 | struct type *t1 = TYPE_TARGET_TYPE (parm); | |
3971 | struct type *t2 = TYPE_TARGET_TYPE (arg); | |
3972 | ||
3973 | if (types_equal (t1, t2)) | |
3974 | { | |
3975 | /* Make sure they are CV equal. */ | |
3976 | if (TYPE_CONST (t1) != TYPE_CONST (t2)) | |
3977 | rank.subrank |= CV_CONVERSION_CONST; | |
3978 | if (TYPE_VOLATILE (t1) != TYPE_VOLATILE (t2)) | |
3979 | rank.subrank |= CV_CONVERSION_VOLATILE; | |
3980 | if (rank.subrank != 0) | |
3981 | return sum_ranks (CV_CONVERSION_BADNESS, rank); | |
3982 | return EXACT_MATCH_BADNESS; | |
3983 | } | |
3984 | return INCOMPATIBLE_TYPE_BADNESS; | |
3985 | } | |
c5aa993b | 3986 | case TYPE_CODE_FUNC: |
da096638 | 3987 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL); |
c5aa993b | 3988 | case TYPE_CODE_INT: |
a451cb65 | 3989 | if (value != NULL && TYPE_CODE (value_type (value)) == TYPE_CODE_INT) |
da096638 | 3990 | { |
a451cb65 KS |
3991 | if (value_as_long (value) == 0) |
3992 | { | |
3993 | /* Null pointer conversion: allow it to be cast to a pointer. | |
3994 | [4.10.1 of C++ standard draft n3290] */ | |
3995 | return NULL_POINTER_CONVERSION_BADNESS; | |
3996 | } | |
3997 | else | |
3998 | { | |
3999 | /* If type checking is disabled, allow the conversion. */ | |
4000 | if (!strict_type_checking) | |
4001 | return NS_INTEGER_POINTER_CONVERSION_BADNESS; | |
4002 | } | |
da096638 KS |
4003 | } |
4004 | /* fall through */ | |
c5aa993b | 4005 | case TYPE_CODE_ENUM: |
4f2aea11 | 4006 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
4007 | case TYPE_CODE_CHAR: |
4008 | case TYPE_CODE_RANGE: | |
4009 | case TYPE_CODE_BOOL: | |
c5aa993b JM |
4010 | default: |
4011 | return INCOMPATIBLE_TYPE_BADNESS; | |
4012 | } | |
4013 | case TYPE_CODE_ARRAY: | |
4014 | switch (TYPE_CODE (arg)) | |
4015 | { | |
4016 | case TYPE_CODE_PTR: | |
4017 | case TYPE_CODE_ARRAY: | |
7ba81444 | 4018 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
da096638 | 4019 | TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
4020 | default: |
4021 | return INCOMPATIBLE_TYPE_BADNESS; | |
4022 | } | |
4023 | case TYPE_CODE_FUNC: | |
4024 | switch (TYPE_CODE (arg)) | |
4025 | { | |
4026 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
da096638 | 4027 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
4028 | default: |
4029 | return INCOMPATIBLE_TYPE_BADNESS; | |
4030 | } | |
4031 | case TYPE_CODE_INT: | |
4032 | switch (TYPE_CODE (arg)) | |
4033 | { | |
4034 | case TYPE_CODE_INT: | |
4035 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
4036 | { | |
4037 | /* Deal with signed, unsigned, and plain chars and | |
7ba81444 | 4038 | signed and unsigned ints. */ |
c5aa993b JM |
4039 | if (TYPE_NOSIGN (parm)) |
4040 | { | |
0963b4bd | 4041 | /* This case only for character types. */ |
7ba81444 | 4042 | if (TYPE_NOSIGN (arg)) |
6403aeea | 4043 | return EXACT_MATCH_BADNESS; /* plain char -> plain char */ |
7ba81444 MS |
4044 | else /* signed/unsigned char -> plain char */ |
4045 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
4046 | } |
4047 | else if (TYPE_UNSIGNED (parm)) | |
4048 | { | |
4049 | if (TYPE_UNSIGNED (arg)) | |
4050 | { | |
7ba81444 MS |
4051 | /* unsigned int -> unsigned int, or |
4052 | unsigned long -> unsigned long */ | |
4053 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
4054 | TYPE_NAME (arg))) | |
6403aeea | 4055 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
4056 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
4057 | "int") | |
4058 | && integer_types_same_name_p (TYPE_NAME (parm), | |
4059 | "long")) | |
3e43a32a MS |
4060 | /* unsigned int -> unsigned long */ |
4061 | return INTEGER_PROMOTION_BADNESS; | |
c5aa993b | 4062 | else |
3e43a32a MS |
4063 | /* unsigned long -> unsigned int */ |
4064 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
4065 | } |
4066 | else | |
4067 | { | |
7ba81444 MS |
4068 | if (integer_types_same_name_p (TYPE_NAME (arg), |
4069 | "long") | |
4070 | && integer_types_same_name_p (TYPE_NAME (parm), | |
4071 | "int")) | |
3e43a32a MS |
4072 | /* signed long -> unsigned int */ |
4073 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b | 4074 | else |
3e43a32a MS |
4075 | /* signed int/long -> unsigned int/long */ |
4076 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
4077 | } |
4078 | } | |
4079 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
4080 | { | |
7ba81444 MS |
4081 | if (integer_types_same_name_p (TYPE_NAME (parm), |
4082 | TYPE_NAME (arg))) | |
6403aeea | 4083 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
4084 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
4085 | "int") | |
4086 | && integer_types_same_name_p (TYPE_NAME (parm), | |
4087 | "long")) | |
c5aa993b JM |
4088 | return INTEGER_PROMOTION_BADNESS; |
4089 | else | |
1c5cb38e | 4090 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
4091 | } |
4092 | else | |
1c5cb38e | 4093 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
4094 | } |
4095 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
4096 | return INTEGER_PROMOTION_BADNESS; | |
4097 | else | |
1c5cb38e | 4098 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b | 4099 | case TYPE_CODE_ENUM: |
4f2aea11 | 4100 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
4101 | case TYPE_CODE_CHAR: |
4102 | case TYPE_CODE_RANGE: | |
4103 | case TYPE_CODE_BOOL: | |
3d567982 TT |
4104 | if (TYPE_DECLARED_CLASS (arg)) |
4105 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b JM |
4106 | return INTEGER_PROMOTION_BADNESS; |
4107 | case TYPE_CODE_FLT: | |
4108 | return INT_FLOAT_CONVERSION_BADNESS; | |
4109 | case TYPE_CODE_PTR: | |
4110 | return NS_POINTER_CONVERSION_BADNESS; | |
4111 | default: | |
4112 | return INCOMPATIBLE_TYPE_BADNESS; | |
4113 | } | |
4114 | break; | |
4115 | case TYPE_CODE_ENUM: | |
4116 | switch (TYPE_CODE (arg)) | |
4117 | { | |
4118 | case TYPE_CODE_INT: | |
4119 | case TYPE_CODE_CHAR: | |
4120 | case TYPE_CODE_RANGE: | |
4121 | case TYPE_CODE_BOOL: | |
4122 | case TYPE_CODE_ENUM: | |
3d567982 TT |
4123 | if (TYPE_DECLARED_CLASS (parm) || TYPE_DECLARED_CLASS (arg)) |
4124 | return INCOMPATIBLE_TYPE_BADNESS; | |
1c5cb38e | 4125 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
4126 | case TYPE_CODE_FLT: |
4127 | return INT_FLOAT_CONVERSION_BADNESS; | |
4128 | default: | |
4129 | return INCOMPATIBLE_TYPE_BADNESS; | |
4130 | } | |
4131 | break; | |
4132 | case TYPE_CODE_CHAR: | |
4133 | switch (TYPE_CODE (arg)) | |
4134 | { | |
4135 | case TYPE_CODE_RANGE: | |
4136 | case TYPE_CODE_BOOL: | |
4137 | case TYPE_CODE_ENUM: | |
3d567982 TT |
4138 | if (TYPE_DECLARED_CLASS (arg)) |
4139 | return INCOMPATIBLE_TYPE_BADNESS; | |
1c5cb38e | 4140 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
4141 | case TYPE_CODE_FLT: |
4142 | return INT_FLOAT_CONVERSION_BADNESS; | |
4143 | case TYPE_CODE_INT: | |
4144 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
1c5cb38e | 4145 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
4146 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) |
4147 | return INTEGER_PROMOTION_BADNESS; | |
86a73007 | 4148 | /* fall through */ |
c5aa993b | 4149 | case TYPE_CODE_CHAR: |
7ba81444 MS |
4150 | /* Deal with signed, unsigned, and plain chars for C++ and |
4151 | with int cases falling through from previous case. */ | |
c5aa993b JM |
4152 | if (TYPE_NOSIGN (parm)) |
4153 | { | |
4154 | if (TYPE_NOSIGN (arg)) | |
6403aeea | 4155 | return EXACT_MATCH_BADNESS; |
c5aa993b | 4156 | else |
1c5cb38e | 4157 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
4158 | } |
4159 | else if (TYPE_UNSIGNED (parm)) | |
4160 | { | |
4161 | if (TYPE_UNSIGNED (arg)) | |
6403aeea | 4162 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
4163 | else |
4164 | return INTEGER_PROMOTION_BADNESS; | |
4165 | } | |
4166 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
6403aeea | 4167 | return EXACT_MATCH_BADNESS; |
c5aa993b | 4168 | else |
1c5cb38e | 4169 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
4170 | default: |
4171 | return INCOMPATIBLE_TYPE_BADNESS; | |
4172 | } | |
4173 | break; | |
4174 | case TYPE_CODE_RANGE: | |
4175 | switch (TYPE_CODE (arg)) | |
4176 | { | |
4177 | case TYPE_CODE_INT: | |
4178 | case TYPE_CODE_CHAR: | |
4179 | case TYPE_CODE_RANGE: | |
4180 | case TYPE_CODE_BOOL: | |
4181 | case TYPE_CODE_ENUM: | |
1c5cb38e | 4182 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
4183 | case TYPE_CODE_FLT: |
4184 | return INT_FLOAT_CONVERSION_BADNESS; | |
4185 | default: | |
4186 | return INCOMPATIBLE_TYPE_BADNESS; | |
4187 | } | |
4188 | break; | |
4189 | case TYPE_CODE_BOOL: | |
4190 | switch (TYPE_CODE (arg)) | |
4191 | { | |
5b4f6e25 KS |
4192 | /* n3290 draft, section 4.12.1 (conv.bool): |
4193 | ||
4194 | "A prvalue of arithmetic, unscoped enumeration, pointer, or | |
4195 | pointer to member type can be converted to a prvalue of type | |
4196 | bool. A zero value, null pointer value, or null member pointer | |
4197 | value is converted to false; any other value is converted to | |
4198 | true. A prvalue of type std::nullptr_t can be converted to a | |
4199 | prvalue of type bool; the resulting value is false." */ | |
c5aa993b JM |
4200 | case TYPE_CODE_INT: |
4201 | case TYPE_CODE_CHAR: | |
c5aa993b JM |
4202 | case TYPE_CODE_ENUM: |
4203 | case TYPE_CODE_FLT: | |
5b4f6e25 | 4204 | case TYPE_CODE_MEMBERPTR: |
c5aa993b | 4205 | case TYPE_CODE_PTR: |
5b4f6e25 KS |
4206 | return BOOL_CONVERSION_BADNESS; |
4207 | case TYPE_CODE_RANGE: | |
4208 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 4209 | case TYPE_CODE_BOOL: |
6403aeea | 4210 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
4211 | default: |
4212 | return INCOMPATIBLE_TYPE_BADNESS; | |
4213 | } | |
4214 | break; | |
4215 | case TYPE_CODE_FLT: | |
4216 | switch (TYPE_CODE (arg)) | |
4217 | { | |
4218 | case TYPE_CODE_FLT: | |
4219 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
4220 | return FLOAT_PROMOTION_BADNESS; | |
4221 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
6403aeea | 4222 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
4223 | else |
4224 | return FLOAT_CONVERSION_BADNESS; | |
4225 | case TYPE_CODE_INT: | |
4226 | case TYPE_CODE_BOOL: | |
4227 | case TYPE_CODE_ENUM: | |
4228 | case TYPE_CODE_RANGE: | |
4229 | case TYPE_CODE_CHAR: | |
4230 | return INT_FLOAT_CONVERSION_BADNESS; | |
4231 | default: | |
4232 | return INCOMPATIBLE_TYPE_BADNESS; | |
4233 | } | |
4234 | break; | |
4235 | case TYPE_CODE_COMPLEX: | |
4236 | switch (TYPE_CODE (arg)) | |
7ba81444 | 4237 | { /* Strictly not needed for C++, but... */ |
c5aa993b JM |
4238 | case TYPE_CODE_FLT: |
4239 | return FLOAT_PROMOTION_BADNESS; | |
4240 | case TYPE_CODE_COMPLEX: | |
6403aeea | 4241 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
4242 | default: |
4243 | return INCOMPATIBLE_TYPE_BADNESS; | |
4244 | } | |
4245 | break; | |
4246 | case TYPE_CODE_STRUCT: | |
c5aa993b JM |
4247 | switch (TYPE_CODE (arg)) |
4248 | { | |
4249 | case TYPE_CODE_STRUCT: | |
4250 | /* Check for derivation */ | |
a9d5ef47 SW |
4251 | rank.subrank = distance_to_ancestor (parm, arg, 0); |
4252 | if (rank.subrank >= 0) | |
4253 | return sum_ranks (BASE_CONVERSION_BADNESS, rank); | |
86a73007 | 4254 | /* fall through */ |
c5aa993b JM |
4255 | default: |
4256 | return INCOMPATIBLE_TYPE_BADNESS; | |
4257 | } | |
4258 | break; | |
4259 | case TYPE_CODE_UNION: | |
4260 | switch (TYPE_CODE (arg)) | |
4261 | { | |
4262 | case TYPE_CODE_UNION: | |
4263 | default: | |
4264 | return INCOMPATIBLE_TYPE_BADNESS; | |
4265 | } | |
4266 | break; | |
0d5de010 | 4267 | case TYPE_CODE_MEMBERPTR: |
c5aa993b JM |
4268 | switch (TYPE_CODE (arg)) |
4269 | { | |
4270 | default: | |
4271 | return INCOMPATIBLE_TYPE_BADNESS; | |
4272 | } | |
4273 | break; | |
4274 | case TYPE_CODE_METHOD: | |
4275 | switch (TYPE_CODE (arg)) | |
4276 | { | |
4277 | ||
4278 | default: | |
4279 | return INCOMPATIBLE_TYPE_BADNESS; | |
4280 | } | |
4281 | break; | |
4282 | case TYPE_CODE_REF: | |
4283 | switch (TYPE_CODE (arg)) | |
4284 | { | |
4285 | ||
4286 | default: | |
4287 | return INCOMPATIBLE_TYPE_BADNESS; | |
4288 | } | |
4289 | ||
4290 | break; | |
4291 | case TYPE_CODE_SET: | |
4292 | switch (TYPE_CODE (arg)) | |
4293 | { | |
4294 | /* Not in C++ */ | |
4295 | case TYPE_CODE_SET: | |
7ba81444 | 4296 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), |
da096638 | 4297 | TYPE_FIELD_TYPE (arg, 0), NULL); |
c5aa993b JM |
4298 | default: |
4299 | return INCOMPATIBLE_TYPE_BADNESS; | |
4300 | } | |
4301 | break; | |
4302 | case TYPE_CODE_VOID: | |
4303 | default: | |
4304 | return INCOMPATIBLE_TYPE_BADNESS; | |
4305 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
4306 | } |
4307 | ||
0963b4bd | 4308 | /* End of functions for overload resolution. */ |
5212577a DE |
4309 | \f |
4310 | /* Routines to pretty-print types. */ | |
c906108c | 4311 | |
c906108c | 4312 | static void |
fba45db2 | 4313 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
4314 | { |
4315 | int bitno; | |
4316 | ||
4317 | for (bitno = 0; bitno < nbits; bitno++) | |
4318 | { | |
4319 | if ((bitno % 8) == 0) | |
4320 | { | |
4321 | puts_filtered (" "); | |
4322 | } | |
4323 | if (B_TST (bits, bitno)) | |
a3f17187 | 4324 | printf_filtered (("1")); |
c906108c | 4325 | else |
a3f17187 | 4326 | printf_filtered (("0")); |
c906108c SS |
4327 | } |
4328 | } | |
4329 | ||
ad2f7632 | 4330 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
4331 | include it since we may get into a infinitely recursive |
4332 | situation. */ | |
c906108c SS |
4333 | |
4334 | static void | |
4c9e8482 | 4335 | print_args (struct field *args, int nargs, int spaces) |
c906108c SS |
4336 | { |
4337 | if (args != NULL) | |
4338 | { | |
ad2f7632 DJ |
4339 | int i; |
4340 | ||
4341 | for (i = 0; i < nargs; i++) | |
4c9e8482 DE |
4342 | { |
4343 | printfi_filtered (spaces, "[%d] name '%s'\n", i, | |
4344 | args[i].name != NULL ? args[i].name : "<NULL>"); | |
4345 | recursive_dump_type (args[i].type, spaces + 2); | |
4346 | } | |
c906108c SS |
4347 | } |
4348 | } | |
4349 | ||
d6a843b5 JK |
4350 | int |
4351 | field_is_static (struct field *f) | |
4352 | { | |
4353 | /* "static" fields are the fields whose location is not relative | |
4354 | to the address of the enclosing struct. It would be nice to | |
4355 | have a dedicated flag that would be set for static fields when | |
4356 | the type is being created. But in practice, checking the field | |
254e6b9e | 4357 | loc_kind should give us an accurate answer. */ |
d6a843b5 JK |
4358 | return (FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSNAME |
4359 | || FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSADDR); | |
4360 | } | |
4361 | ||
c906108c | 4362 | static void |
fba45db2 | 4363 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
4364 | { |
4365 | int method_idx; | |
4366 | int overload_idx; | |
4367 | struct fn_field *f; | |
4368 | ||
4369 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 4370 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
4371 | printf_filtered ("\n"); |
4372 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
4373 | { | |
4374 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
4375 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
4376 | method_idx, | |
4377 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
4378 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
4379 | gdb_stdout); | |
a3f17187 | 4380 | printf_filtered (_(") length %d\n"), |
c906108c SS |
4381 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
4382 | for (overload_idx = 0; | |
4383 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
4384 | overload_idx++) | |
4385 | { | |
4386 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
4387 | overload_idx, | |
4388 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
4389 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
4390 | gdb_stdout); | |
c906108c SS |
4391 | printf_filtered (")\n"); |
4392 | printfi_filtered (spaces + 8, "type "); | |
7ba81444 MS |
4393 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
4394 | gdb_stdout); | |
c906108c SS |
4395 | printf_filtered ("\n"); |
4396 | ||
4397 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
4398 | spaces + 8 + 2); | |
4399 | ||
4400 | printfi_filtered (spaces + 8, "args "); | |
7ba81444 MS |
4401 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
4402 | gdb_stdout); | |
c906108c | 4403 | printf_filtered ("\n"); |
4c9e8482 DE |
4404 | print_args (TYPE_FN_FIELD_ARGS (f, overload_idx), |
4405 | TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, overload_idx)), | |
4406 | spaces + 8 + 2); | |
c906108c | 4407 | printfi_filtered (spaces + 8, "fcontext "); |
d4f3574e SS |
4408 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
4409 | gdb_stdout); | |
c906108c SS |
4410 | printf_filtered ("\n"); |
4411 | ||
4412 | printfi_filtered (spaces + 8, "is_const %d\n", | |
4413 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
4414 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
4415 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
4416 | printfi_filtered (spaces + 8, "is_private %d\n", | |
4417 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
4418 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
4419 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
4420 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
4421 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
4422 | printfi_filtered (spaces + 8, "voffset %u\n", | |
4423 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
4424 | } | |
4425 | } | |
4426 | } | |
4427 | ||
4428 | static void | |
fba45db2 | 4429 | print_cplus_stuff (struct type *type, int spaces) |
c906108c | 4430 | { |
ae6ae975 DE |
4431 | printfi_filtered (spaces, "vptr_fieldno %d\n", TYPE_VPTR_FIELDNO (type)); |
4432 | printfi_filtered (spaces, "vptr_basetype "); | |
4433 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); | |
4434 | puts_filtered ("\n"); | |
4435 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
4436 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
4437 | ||
c906108c SS |
4438 | printfi_filtered (spaces, "n_baseclasses %d\n", |
4439 | TYPE_N_BASECLASSES (type)); | |
4440 | printfi_filtered (spaces, "nfn_fields %d\n", | |
4441 | TYPE_NFN_FIELDS (type)); | |
c906108c SS |
4442 | if (TYPE_N_BASECLASSES (type) > 0) |
4443 | { | |
4444 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
4445 | TYPE_N_BASECLASSES (type)); | |
7ba81444 MS |
4446 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
4447 | gdb_stdout); | |
c906108c SS |
4448 | printf_filtered (")"); |
4449 | ||
4450 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
4451 | TYPE_N_BASECLASSES (type)); | |
4452 | puts_filtered ("\n"); | |
4453 | } | |
4454 | if (TYPE_NFIELDS (type) > 0) | |
4455 | { | |
4456 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
4457 | { | |
7ba81444 MS |
4458 | printfi_filtered (spaces, |
4459 | "private_field_bits (%d bits at *", | |
c906108c | 4460 | TYPE_NFIELDS (type)); |
7ba81444 MS |
4461 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
4462 | gdb_stdout); | |
c906108c SS |
4463 | printf_filtered (")"); |
4464 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
4465 | TYPE_NFIELDS (type)); | |
4466 | puts_filtered ("\n"); | |
4467 | } | |
4468 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
4469 | { | |
7ba81444 MS |
4470 | printfi_filtered (spaces, |
4471 | "protected_field_bits (%d bits at *", | |
c906108c | 4472 | TYPE_NFIELDS (type)); |
7ba81444 MS |
4473 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
4474 | gdb_stdout); | |
c906108c SS |
4475 | printf_filtered (")"); |
4476 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
4477 | TYPE_NFIELDS (type)); | |
4478 | puts_filtered ("\n"); | |
4479 | } | |
4480 | } | |
4481 | if (TYPE_NFN_FIELDS (type) > 0) | |
4482 | { | |
4483 | dump_fn_fieldlists (type, spaces); | |
4484 | } | |
4485 | } | |
4486 | ||
b4ba55a1 JB |
4487 | /* Print the contents of the TYPE's type_specific union, assuming that |
4488 | its type-specific kind is TYPE_SPECIFIC_GNAT_STUFF. */ | |
4489 | ||
4490 | static void | |
4491 | print_gnat_stuff (struct type *type, int spaces) | |
4492 | { | |
4493 | struct type *descriptive_type = TYPE_DESCRIPTIVE_TYPE (type); | |
4494 | ||
8cd00c59 PMR |
4495 | if (descriptive_type == NULL) |
4496 | printfi_filtered (spaces + 2, "no descriptive type\n"); | |
4497 | else | |
4498 | { | |
4499 | printfi_filtered (spaces + 2, "descriptive type\n"); | |
4500 | recursive_dump_type (descriptive_type, spaces + 4); | |
4501 | } | |
b4ba55a1 JB |
4502 | } |
4503 | ||
c906108c SS |
4504 | static struct obstack dont_print_type_obstack; |
4505 | ||
4506 | void | |
fba45db2 | 4507 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
4508 | { |
4509 | int idx; | |
4510 | ||
4511 | if (spaces == 0) | |
4512 | obstack_begin (&dont_print_type_obstack, 0); | |
4513 | ||
4514 | if (TYPE_NFIELDS (type) > 0 | |
b4ba55a1 | 4515 | || (HAVE_CPLUS_STRUCT (type) && TYPE_NFN_FIELDS (type) > 0)) |
c906108c SS |
4516 | { |
4517 | struct type **first_dont_print | |
7ba81444 | 4518 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 4519 | |
7ba81444 MS |
4520 | int i = (struct type **) |
4521 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
4522 | |
4523 | while (--i >= 0) | |
4524 | { | |
4525 | if (type == first_dont_print[i]) | |
4526 | { | |
4527 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 4528 | gdb_print_host_address (type, gdb_stdout); |
a3f17187 | 4529 | printf_filtered (_(" <same as already seen type>\n")); |
c906108c SS |
4530 | return; |
4531 | } | |
4532 | } | |
4533 | ||
4534 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
4535 | } | |
4536 | ||
4537 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 4538 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
4539 | printf_filtered ("\n"); |
4540 | printfi_filtered (spaces, "name '%s' (", | |
4541 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 4542 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c | 4543 | printf_filtered (")\n"); |
e9e79dd9 FF |
4544 | printfi_filtered (spaces, "tagname '%s' (", |
4545 | TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>"); | |
4546 | gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); | |
4547 | printf_filtered (")\n"); | |
c906108c SS |
4548 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
4549 | switch (TYPE_CODE (type)) | |
4550 | { | |
c5aa993b JM |
4551 | case TYPE_CODE_UNDEF: |
4552 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
4553 | break; | |
4554 | case TYPE_CODE_PTR: | |
4555 | printf_filtered ("(TYPE_CODE_PTR)"); | |
4556 | break; | |
4557 | case TYPE_CODE_ARRAY: | |
4558 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
4559 | break; | |
4560 | case TYPE_CODE_STRUCT: | |
4561 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
4562 | break; | |
4563 | case TYPE_CODE_UNION: | |
4564 | printf_filtered ("(TYPE_CODE_UNION)"); | |
4565 | break; | |
4566 | case TYPE_CODE_ENUM: | |
4567 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
4568 | break; | |
4f2aea11 MK |
4569 | case TYPE_CODE_FLAGS: |
4570 | printf_filtered ("(TYPE_CODE_FLAGS)"); | |
4571 | break; | |
c5aa993b JM |
4572 | case TYPE_CODE_FUNC: |
4573 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
4574 | break; | |
4575 | case TYPE_CODE_INT: | |
4576 | printf_filtered ("(TYPE_CODE_INT)"); | |
4577 | break; | |
4578 | case TYPE_CODE_FLT: | |
4579 | printf_filtered ("(TYPE_CODE_FLT)"); | |
4580 | break; | |
4581 | case TYPE_CODE_VOID: | |
4582 | printf_filtered ("(TYPE_CODE_VOID)"); | |
4583 | break; | |
4584 | case TYPE_CODE_SET: | |
4585 | printf_filtered ("(TYPE_CODE_SET)"); | |
4586 | break; | |
4587 | case TYPE_CODE_RANGE: | |
4588 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
4589 | break; | |
4590 | case TYPE_CODE_STRING: | |
4591 | printf_filtered ("(TYPE_CODE_STRING)"); | |
4592 | break; | |
4593 | case TYPE_CODE_ERROR: | |
4594 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
4595 | break; | |
0d5de010 DJ |
4596 | case TYPE_CODE_MEMBERPTR: |
4597 | printf_filtered ("(TYPE_CODE_MEMBERPTR)"); | |
4598 | break; | |
4599 | case TYPE_CODE_METHODPTR: | |
4600 | printf_filtered ("(TYPE_CODE_METHODPTR)"); | |
c5aa993b JM |
4601 | break; |
4602 | case TYPE_CODE_METHOD: | |
4603 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
4604 | break; | |
4605 | case TYPE_CODE_REF: | |
4606 | printf_filtered ("(TYPE_CODE_REF)"); | |
4607 | break; | |
4608 | case TYPE_CODE_CHAR: | |
4609 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
4610 | break; | |
4611 | case TYPE_CODE_BOOL: | |
4612 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
4613 | break; | |
e9e79dd9 FF |
4614 | case TYPE_CODE_COMPLEX: |
4615 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
4616 | break; | |
c5aa993b JM |
4617 | case TYPE_CODE_TYPEDEF: |
4618 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
4619 | break; | |
5c4e30ca DC |
4620 | case TYPE_CODE_NAMESPACE: |
4621 | printf_filtered ("(TYPE_CODE_NAMESPACE)"); | |
4622 | break; | |
c5aa993b JM |
4623 | default: |
4624 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
4625 | break; | |
c906108c SS |
4626 | } |
4627 | puts_filtered ("\n"); | |
4628 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
e9bb382b UW |
4629 | if (TYPE_OBJFILE_OWNED (type)) |
4630 | { | |
4631 | printfi_filtered (spaces, "objfile "); | |
4632 | gdb_print_host_address (TYPE_OWNER (type).objfile, gdb_stdout); | |
4633 | } | |
4634 | else | |
4635 | { | |
4636 | printfi_filtered (spaces, "gdbarch "); | |
4637 | gdb_print_host_address (TYPE_OWNER (type).gdbarch, gdb_stdout); | |
4638 | } | |
c906108c SS |
4639 | printf_filtered ("\n"); |
4640 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 4641 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
4642 | printf_filtered ("\n"); |
4643 | if (TYPE_TARGET_TYPE (type) != NULL) | |
4644 | { | |
4645 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
4646 | } | |
4647 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 4648 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
4649 | printf_filtered ("\n"); |
4650 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 4651 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 4652 | printf_filtered ("\n"); |
2fdde8f8 DJ |
4653 | printfi_filtered (spaces, "type_chain "); |
4654 | gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); | |
e9e79dd9 | 4655 | printf_filtered ("\n"); |
7ba81444 MS |
4656 | printfi_filtered (spaces, "instance_flags 0x%x", |
4657 | TYPE_INSTANCE_FLAGS (type)); | |
2fdde8f8 DJ |
4658 | if (TYPE_CONST (type)) |
4659 | { | |
a9ff5f12 | 4660 | puts_filtered (" TYPE_CONST"); |
2fdde8f8 DJ |
4661 | } |
4662 | if (TYPE_VOLATILE (type)) | |
4663 | { | |
a9ff5f12 | 4664 | puts_filtered (" TYPE_VOLATILE"); |
2fdde8f8 DJ |
4665 | } |
4666 | if (TYPE_CODE_SPACE (type)) | |
4667 | { | |
a9ff5f12 | 4668 | puts_filtered (" TYPE_CODE_SPACE"); |
2fdde8f8 DJ |
4669 | } |
4670 | if (TYPE_DATA_SPACE (type)) | |
4671 | { | |
a9ff5f12 | 4672 | puts_filtered (" TYPE_DATA_SPACE"); |
2fdde8f8 | 4673 | } |
8b2dbe47 KB |
4674 | if (TYPE_ADDRESS_CLASS_1 (type)) |
4675 | { | |
a9ff5f12 | 4676 | puts_filtered (" TYPE_ADDRESS_CLASS_1"); |
8b2dbe47 KB |
4677 | } |
4678 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
4679 | { | |
a9ff5f12 | 4680 | puts_filtered (" TYPE_ADDRESS_CLASS_2"); |
8b2dbe47 | 4681 | } |
06d66ee9 TT |
4682 | if (TYPE_RESTRICT (type)) |
4683 | { | |
a9ff5f12 | 4684 | puts_filtered (" TYPE_RESTRICT"); |
06d66ee9 | 4685 | } |
a2c2acaf MW |
4686 | if (TYPE_ATOMIC (type)) |
4687 | { | |
a9ff5f12 | 4688 | puts_filtered (" TYPE_ATOMIC"); |
a2c2acaf | 4689 | } |
2fdde8f8 | 4690 | puts_filtered ("\n"); |
876cecd0 TT |
4691 | |
4692 | printfi_filtered (spaces, "flags"); | |
762a036f | 4693 | if (TYPE_UNSIGNED (type)) |
c906108c | 4694 | { |
a9ff5f12 | 4695 | puts_filtered (" TYPE_UNSIGNED"); |
c906108c | 4696 | } |
762a036f FF |
4697 | if (TYPE_NOSIGN (type)) |
4698 | { | |
a9ff5f12 | 4699 | puts_filtered (" TYPE_NOSIGN"); |
762a036f FF |
4700 | } |
4701 | if (TYPE_STUB (type)) | |
c906108c | 4702 | { |
a9ff5f12 | 4703 | puts_filtered (" TYPE_STUB"); |
c906108c | 4704 | } |
762a036f FF |
4705 | if (TYPE_TARGET_STUB (type)) |
4706 | { | |
a9ff5f12 | 4707 | puts_filtered (" TYPE_TARGET_STUB"); |
762a036f | 4708 | } |
762a036f FF |
4709 | if (TYPE_PROTOTYPED (type)) |
4710 | { | |
a9ff5f12 | 4711 | puts_filtered (" TYPE_PROTOTYPED"); |
762a036f FF |
4712 | } |
4713 | if (TYPE_INCOMPLETE (type)) | |
4714 | { | |
a9ff5f12 | 4715 | puts_filtered (" TYPE_INCOMPLETE"); |
762a036f | 4716 | } |
762a036f FF |
4717 | if (TYPE_VARARGS (type)) |
4718 | { | |
a9ff5f12 | 4719 | puts_filtered (" TYPE_VARARGS"); |
762a036f | 4720 | } |
f5f8a009 EZ |
4721 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
4722 | an attribute for the array type, which tells whether or not we | |
4723 | have a vector, instead of a regular array. */ | |
4724 | if (TYPE_VECTOR (type)) | |
4725 | { | |
a9ff5f12 | 4726 | puts_filtered (" TYPE_VECTOR"); |
f5f8a009 | 4727 | } |
876cecd0 TT |
4728 | if (TYPE_FIXED_INSTANCE (type)) |
4729 | { | |
4730 | puts_filtered (" TYPE_FIXED_INSTANCE"); | |
4731 | } | |
4732 | if (TYPE_STUB_SUPPORTED (type)) | |
4733 | { | |
4734 | puts_filtered (" TYPE_STUB_SUPPORTED"); | |
4735 | } | |
4736 | if (TYPE_NOTTEXT (type)) | |
4737 | { | |
4738 | puts_filtered (" TYPE_NOTTEXT"); | |
4739 | } | |
c906108c SS |
4740 | puts_filtered ("\n"); |
4741 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 4742 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
4743 | puts_filtered ("\n"); |
4744 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
4745 | { | |
14e75d8e JK |
4746 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) |
4747 | printfi_filtered (spaces + 2, | |
4748 | "[%d] enumval %s type ", | |
4749 | idx, plongest (TYPE_FIELD_ENUMVAL (type, idx))); | |
4750 | else | |
4751 | printfi_filtered (spaces + 2, | |
6b850546 DT |
4752 | "[%d] bitpos %s bitsize %d type ", |
4753 | idx, plongest (TYPE_FIELD_BITPOS (type, idx)), | |
14e75d8e | 4754 | TYPE_FIELD_BITSIZE (type, idx)); |
d4f3574e | 4755 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
4756 | printf_filtered (" name '%s' (", |
4757 | TYPE_FIELD_NAME (type, idx) != NULL | |
4758 | ? TYPE_FIELD_NAME (type, idx) | |
4759 | : "<NULL>"); | |
d4f3574e | 4760 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
4761 | printf_filtered (")\n"); |
4762 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
4763 | { | |
4764 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
4765 | } | |
4766 | } | |
43bbcdc2 PH |
4767 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
4768 | { | |
4769 | printfi_filtered (spaces, "low %s%s high %s%s\n", | |
4770 | plongest (TYPE_LOW_BOUND (type)), | |
4771 | TYPE_LOW_BOUND_UNDEFINED (type) ? " (undefined)" : "", | |
4772 | plongest (TYPE_HIGH_BOUND (type)), | |
3e43a32a MS |
4773 | TYPE_HIGH_BOUND_UNDEFINED (type) |
4774 | ? " (undefined)" : ""); | |
43bbcdc2 | 4775 | } |
c906108c | 4776 | |
b4ba55a1 JB |
4777 | switch (TYPE_SPECIFIC_FIELD (type)) |
4778 | { | |
4779 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
4780 | printfi_filtered (spaces, "cplus_stuff "); | |
4781 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), | |
4782 | gdb_stdout); | |
4783 | puts_filtered ("\n"); | |
4784 | print_cplus_stuff (type, spaces); | |
4785 | break; | |
8da61cc4 | 4786 | |
b4ba55a1 JB |
4787 | case TYPE_SPECIFIC_GNAT_STUFF: |
4788 | printfi_filtered (spaces, "gnat_stuff "); | |
4789 | gdb_print_host_address (TYPE_GNAT_SPECIFIC (type), gdb_stdout); | |
4790 | puts_filtered ("\n"); | |
4791 | print_gnat_stuff (type, spaces); | |
4792 | break; | |
701c159d | 4793 | |
b4ba55a1 JB |
4794 | case TYPE_SPECIFIC_FLOATFORMAT: |
4795 | printfi_filtered (spaces, "floatformat "); | |
0db7851f UW |
4796 | if (TYPE_FLOATFORMAT (type) == NULL |
4797 | || TYPE_FLOATFORMAT (type)->name == NULL) | |
b4ba55a1 JB |
4798 | puts_filtered ("(null)"); |
4799 | else | |
0db7851f | 4800 | puts_filtered (TYPE_FLOATFORMAT (type)->name); |
b4ba55a1 JB |
4801 | puts_filtered ("\n"); |
4802 | break; | |
c906108c | 4803 | |
b6cdc2c1 | 4804 | case TYPE_SPECIFIC_FUNC: |
b4ba55a1 JB |
4805 | printfi_filtered (spaces, "calling_convention %d\n", |
4806 | TYPE_CALLING_CONVENTION (type)); | |
b6cdc2c1 | 4807 | /* tail_call_list is not printed. */ |
b4ba55a1 | 4808 | break; |
09e2d7c7 DE |
4809 | |
4810 | case TYPE_SPECIFIC_SELF_TYPE: | |
4811 | printfi_filtered (spaces, "self_type "); | |
4812 | gdb_print_host_address (TYPE_SELF_TYPE (type), gdb_stdout); | |
4813 | puts_filtered ("\n"); | |
4814 | break; | |
c906108c | 4815 | } |
b4ba55a1 | 4816 | |
c906108c SS |
4817 | if (spaces == 0) |
4818 | obstack_free (&dont_print_type_obstack, NULL); | |
4819 | } | |
5212577a | 4820 | \f |
ae5a43e0 DJ |
4821 | /* Trivial helpers for the libiberty hash table, for mapping one |
4822 | type to another. */ | |
4823 | ||
fd90ace4 | 4824 | struct type_pair : public allocate_on_obstack |
ae5a43e0 | 4825 | { |
fd90ace4 YQ |
4826 | type_pair (struct type *old_, struct type *newobj_) |
4827 | : old (old_), newobj (newobj_) | |
4828 | {} | |
4829 | ||
4830 | struct type * const old, * const newobj; | |
ae5a43e0 DJ |
4831 | }; |
4832 | ||
4833 | static hashval_t | |
4834 | type_pair_hash (const void *item) | |
4835 | { | |
9a3c8263 | 4836 | const struct type_pair *pair = (const struct type_pair *) item; |
d8734c88 | 4837 | |
ae5a43e0 DJ |
4838 | return htab_hash_pointer (pair->old); |
4839 | } | |
4840 | ||
4841 | static int | |
4842 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
4843 | { | |
9a3c8263 SM |
4844 | const struct type_pair *lhs = (const struct type_pair *) item_lhs; |
4845 | const struct type_pair *rhs = (const struct type_pair *) item_rhs; | |
d8734c88 | 4846 | |
ae5a43e0 DJ |
4847 | return lhs->old == rhs->old; |
4848 | } | |
4849 | ||
4850 | /* Allocate the hash table used by copy_type_recursive to walk | |
4851 | types without duplicates. We use OBJFILE's obstack, because | |
4852 | OBJFILE is about to be deleted. */ | |
4853 | ||
4854 | htab_t | |
4855 | create_copied_types_hash (struct objfile *objfile) | |
4856 | { | |
4857 | return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, | |
4858 | NULL, &objfile->objfile_obstack, | |
4859 | hashtab_obstack_allocate, | |
4860 | dummy_obstack_deallocate); | |
4861 | } | |
4862 | ||
d9823cbb KB |
4863 | /* Recursively copy (deep copy) a dynamic attribute list of a type. */ |
4864 | ||
4865 | static struct dynamic_prop_list * | |
4866 | copy_dynamic_prop_list (struct obstack *objfile_obstack, | |
4867 | struct dynamic_prop_list *list) | |
4868 | { | |
4869 | struct dynamic_prop_list *copy = list; | |
4870 | struct dynamic_prop_list **node_ptr = © | |
4871 | ||
4872 | while (*node_ptr != NULL) | |
4873 | { | |
4874 | struct dynamic_prop_list *node_copy; | |
4875 | ||
224c3ddb SM |
4876 | node_copy = ((struct dynamic_prop_list *) |
4877 | obstack_copy (objfile_obstack, *node_ptr, | |
4878 | sizeof (struct dynamic_prop_list))); | |
283a9958 | 4879 | node_copy->prop = (*node_ptr)->prop; |
d9823cbb KB |
4880 | *node_ptr = node_copy; |
4881 | ||
4882 | node_ptr = &node_copy->next; | |
4883 | } | |
4884 | ||
4885 | return copy; | |
4886 | } | |
4887 | ||
7ba81444 | 4888 | /* Recursively copy (deep copy) TYPE, if it is associated with |
eed8b28a PP |
4889 | OBJFILE. Return a new type owned by the gdbarch associated with the type, a |
4890 | saved type if we have already visited TYPE (using COPIED_TYPES), or TYPE if | |
4891 | it is not associated with OBJFILE. */ | |
ae5a43e0 DJ |
4892 | |
4893 | struct type * | |
7ba81444 MS |
4894 | copy_type_recursive (struct objfile *objfile, |
4895 | struct type *type, | |
ae5a43e0 DJ |
4896 | htab_t copied_types) |
4897 | { | |
ae5a43e0 DJ |
4898 | void **slot; |
4899 | struct type *new_type; | |
4900 | ||
e9bb382b | 4901 | if (! TYPE_OBJFILE_OWNED (type)) |
ae5a43e0 DJ |
4902 | return type; |
4903 | ||
7ba81444 MS |
4904 | /* This type shouldn't be pointing to any types in other objfiles; |
4905 | if it did, the type might disappear unexpectedly. */ | |
ae5a43e0 DJ |
4906 | gdb_assert (TYPE_OBJFILE (type) == objfile); |
4907 | ||
fd90ace4 YQ |
4908 | struct type_pair pair (type, nullptr); |
4909 | ||
ae5a43e0 DJ |
4910 | slot = htab_find_slot (copied_types, &pair, INSERT); |
4911 | if (*slot != NULL) | |
fe978cb0 | 4912 | return ((struct type_pair *) *slot)->newobj; |
ae5a43e0 | 4913 | |
e9bb382b | 4914 | new_type = alloc_type_arch (get_type_arch (type)); |
ae5a43e0 DJ |
4915 | |
4916 | /* We must add the new type to the hash table immediately, in case | |
4917 | we encounter this type again during a recursive call below. */ | |
fd90ace4 YQ |
4918 | struct type_pair *stored |
4919 | = new (&objfile->objfile_obstack) struct type_pair (type, new_type); | |
4920 | ||
ae5a43e0 DJ |
4921 | *slot = stored; |
4922 | ||
876cecd0 TT |
4923 | /* Copy the common fields of types. For the main type, we simply |
4924 | copy the entire thing and then update specific fields as needed. */ | |
4925 | *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type); | |
e9bb382b UW |
4926 | TYPE_OBJFILE_OWNED (new_type) = 0; |
4927 | TYPE_OWNER (new_type).gdbarch = get_type_arch (type); | |
876cecd0 | 4928 | |
ae5a43e0 DJ |
4929 | if (TYPE_NAME (type)) |
4930 | TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type)); | |
4931 | if (TYPE_TAG_NAME (type)) | |
4932 | TYPE_TAG_NAME (new_type) = xstrdup (TYPE_TAG_NAME (type)); | |
ae5a43e0 DJ |
4933 | |
4934 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); | |
4935 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
4936 | ||
4937 | /* Copy the fields. */ | |
ae5a43e0 DJ |
4938 | if (TYPE_NFIELDS (type)) |
4939 | { | |
4940 | int i, nfields; | |
4941 | ||
4942 | nfields = TYPE_NFIELDS (type); | |
fc270c35 | 4943 | TYPE_FIELDS (new_type) = XCNEWVEC (struct field, nfields); |
ae5a43e0 DJ |
4944 | for (i = 0; i < nfields; i++) |
4945 | { | |
7ba81444 MS |
4946 | TYPE_FIELD_ARTIFICIAL (new_type, i) = |
4947 | TYPE_FIELD_ARTIFICIAL (type, i); | |
ae5a43e0 DJ |
4948 | TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
4949 | if (TYPE_FIELD_TYPE (type, i)) | |
4950 | TYPE_FIELD_TYPE (new_type, i) | |
4951 | = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i), | |
4952 | copied_types); | |
4953 | if (TYPE_FIELD_NAME (type, i)) | |
7ba81444 MS |
4954 | TYPE_FIELD_NAME (new_type, i) = |
4955 | xstrdup (TYPE_FIELD_NAME (type, i)); | |
d6a843b5 | 4956 | switch (TYPE_FIELD_LOC_KIND (type, i)) |
ae5a43e0 | 4957 | { |
d6a843b5 JK |
4958 | case FIELD_LOC_KIND_BITPOS: |
4959 | SET_FIELD_BITPOS (TYPE_FIELD (new_type, i), | |
4960 | TYPE_FIELD_BITPOS (type, i)); | |
4961 | break; | |
14e75d8e JK |
4962 | case FIELD_LOC_KIND_ENUMVAL: |
4963 | SET_FIELD_ENUMVAL (TYPE_FIELD (new_type, i), | |
4964 | TYPE_FIELD_ENUMVAL (type, i)); | |
4965 | break; | |
d6a843b5 JK |
4966 | case FIELD_LOC_KIND_PHYSADDR: |
4967 | SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i), | |
4968 | TYPE_FIELD_STATIC_PHYSADDR (type, i)); | |
4969 | break; | |
4970 | case FIELD_LOC_KIND_PHYSNAME: | |
4971 | SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i), | |
4972 | xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, | |
4973 | i))); | |
4974 | break; | |
4975 | default: | |
4976 | internal_error (__FILE__, __LINE__, | |
4977 | _("Unexpected type field location kind: %d"), | |
4978 | TYPE_FIELD_LOC_KIND (type, i)); | |
ae5a43e0 DJ |
4979 | } |
4980 | } | |
4981 | } | |
4982 | ||
0963b4bd | 4983 | /* For range types, copy the bounds information. */ |
43bbcdc2 PH |
4984 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
4985 | { | |
8d749320 | 4986 | TYPE_RANGE_DATA (new_type) = XNEW (struct range_bounds); |
43bbcdc2 PH |
4987 | *TYPE_RANGE_DATA (new_type) = *TYPE_RANGE_DATA (type); |
4988 | } | |
4989 | ||
d9823cbb KB |
4990 | if (TYPE_DYN_PROP_LIST (type) != NULL) |
4991 | TYPE_DYN_PROP_LIST (new_type) | |
4992 | = copy_dynamic_prop_list (&objfile->objfile_obstack, | |
4993 | TYPE_DYN_PROP_LIST (type)); | |
4994 | ||
3cdcd0ce | 4995 | |
ae5a43e0 DJ |
4996 | /* Copy pointers to other types. */ |
4997 | if (TYPE_TARGET_TYPE (type)) | |
7ba81444 MS |
4998 | TYPE_TARGET_TYPE (new_type) = |
4999 | copy_type_recursive (objfile, | |
5000 | TYPE_TARGET_TYPE (type), | |
5001 | copied_types); | |
f6b3afbf | 5002 | |
ae5a43e0 DJ |
5003 | /* Maybe copy the type_specific bits. |
5004 | ||
5005 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
5006 | base classes and methods. There's no fundamental reason why we | |
5007 | can't, but at the moment it is not needed. */ | |
5008 | ||
f6b3afbf DE |
5009 | switch (TYPE_SPECIFIC_FIELD (type)) |
5010 | { | |
5011 | case TYPE_SPECIFIC_NONE: | |
5012 | break; | |
5013 | case TYPE_SPECIFIC_FUNC: | |
5014 | INIT_FUNC_SPECIFIC (new_type); | |
5015 | TYPE_CALLING_CONVENTION (new_type) = TYPE_CALLING_CONVENTION (type); | |
5016 | TYPE_NO_RETURN (new_type) = TYPE_NO_RETURN (type); | |
5017 | TYPE_TAIL_CALL_LIST (new_type) = NULL; | |
5018 | break; | |
5019 | case TYPE_SPECIFIC_FLOATFORMAT: | |
5020 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); | |
5021 | break; | |
5022 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
5023 | INIT_CPLUS_SPECIFIC (new_type); | |
5024 | break; | |
5025 | case TYPE_SPECIFIC_GNAT_STUFF: | |
5026 | INIT_GNAT_SPECIFIC (new_type); | |
5027 | break; | |
09e2d7c7 DE |
5028 | case TYPE_SPECIFIC_SELF_TYPE: |
5029 | set_type_self_type (new_type, | |
5030 | copy_type_recursive (objfile, TYPE_SELF_TYPE (type), | |
5031 | copied_types)); | |
5032 | break; | |
f6b3afbf DE |
5033 | default: |
5034 | gdb_assert_not_reached ("bad type_specific_kind"); | |
5035 | } | |
ae5a43e0 DJ |
5036 | |
5037 | return new_type; | |
5038 | } | |
5039 | ||
4af88198 JB |
5040 | /* Make a copy of the given TYPE, except that the pointer & reference |
5041 | types are not preserved. | |
5042 | ||
5043 | This function assumes that the given type has an associated objfile. | |
5044 | This objfile is used to allocate the new type. */ | |
5045 | ||
5046 | struct type * | |
5047 | copy_type (const struct type *type) | |
5048 | { | |
5049 | struct type *new_type; | |
5050 | ||
e9bb382b | 5051 | gdb_assert (TYPE_OBJFILE_OWNED (type)); |
4af88198 | 5052 | |
e9bb382b | 5053 | new_type = alloc_type_copy (type); |
4af88198 JB |
5054 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); |
5055 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
5056 | memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type), | |
5057 | sizeof (struct main_type)); | |
d9823cbb KB |
5058 | if (TYPE_DYN_PROP_LIST (type) != NULL) |
5059 | TYPE_DYN_PROP_LIST (new_type) | |
5060 | = copy_dynamic_prop_list (&TYPE_OBJFILE (type) -> objfile_obstack, | |
5061 | TYPE_DYN_PROP_LIST (type)); | |
4af88198 JB |
5062 | |
5063 | return new_type; | |
5064 | } | |
5212577a | 5065 | \f |
e9bb382b UW |
5066 | /* Helper functions to initialize architecture-specific types. */ |
5067 | ||
5068 | /* Allocate a type structure associated with GDBARCH and set its | |
5069 | CODE, LENGTH, and NAME fields. */ | |
5212577a | 5070 | |
e9bb382b UW |
5071 | struct type * |
5072 | arch_type (struct gdbarch *gdbarch, | |
77b7c781 | 5073 | enum type_code code, int bit, const char *name) |
e9bb382b UW |
5074 | { |
5075 | struct type *type; | |
5076 | ||
5077 | type = alloc_type_arch (gdbarch); | |
ae438bc5 | 5078 | set_type_code (type, code); |
77b7c781 UW |
5079 | gdb_assert ((bit % TARGET_CHAR_BIT) == 0); |
5080 | TYPE_LENGTH (type) = bit / TARGET_CHAR_BIT; | |
e9bb382b UW |
5081 | |
5082 | if (name) | |
6c214e7c | 5083 | TYPE_NAME (type) = gdbarch_obstack_strdup (gdbarch, name); |
e9bb382b UW |
5084 | |
5085 | return type; | |
5086 | } | |
5087 | ||
5088 | /* Allocate a TYPE_CODE_INT type structure associated with GDBARCH. | |
5089 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
5090 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 5091 | |
e9bb382b UW |
5092 | struct type * |
5093 | arch_integer_type (struct gdbarch *gdbarch, | |
695bfa52 | 5094 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
5095 | { |
5096 | struct type *t; | |
5097 | ||
77b7c781 | 5098 | t = arch_type (gdbarch, TYPE_CODE_INT, bit, name); |
e9bb382b UW |
5099 | if (unsigned_p) |
5100 | TYPE_UNSIGNED (t) = 1; | |
e9bb382b UW |
5101 | |
5102 | return t; | |
5103 | } | |
5104 | ||
5105 | /* Allocate a TYPE_CODE_CHAR type structure associated with GDBARCH. | |
5106 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
5107 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 5108 | |
e9bb382b UW |
5109 | struct type * |
5110 | arch_character_type (struct gdbarch *gdbarch, | |
695bfa52 | 5111 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
5112 | { |
5113 | struct type *t; | |
5114 | ||
77b7c781 | 5115 | t = arch_type (gdbarch, TYPE_CODE_CHAR, bit, name); |
e9bb382b UW |
5116 | if (unsigned_p) |
5117 | TYPE_UNSIGNED (t) = 1; | |
5118 | ||
5119 | return t; | |
5120 | } | |
5121 | ||
5122 | /* Allocate a TYPE_CODE_BOOL type structure associated with GDBARCH. | |
5123 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
5124 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 5125 | |
e9bb382b UW |
5126 | struct type * |
5127 | arch_boolean_type (struct gdbarch *gdbarch, | |
695bfa52 | 5128 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
5129 | { |
5130 | struct type *t; | |
5131 | ||
77b7c781 | 5132 | t = arch_type (gdbarch, TYPE_CODE_BOOL, bit, name); |
e9bb382b UW |
5133 | if (unsigned_p) |
5134 | TYPE_UNSIGNED (t) = 1; | |
5135 | ||
5136 | return t; | |
5137 | } | |
5138 | ||
5139 | /* Allocate a TYPE_CODE_FLT type structure associated with GDBARCH. | |
5140 | BIT is the type size in bits; if BIT equals -1, the size is | |
5141 | determined by the floatformat. NAME is the type name. Set the | |
5142 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
5212577a | 5143 | |
27067745 | 5144 | struct type * |
e9bb382b | 5145 | arch_float_type (struct gdbarch *gdbarch, |
695bfa52 TT |
5146 | int bit, const char *name, |
5147 | const struct floatformat **floatformats) | |
8da61cc4 | 5148 | { |
0db7851f | 5149 | const struct floatformat *fmt = floatformats[gdbarch_byte_order (gdbarch)]; |
8da61cc4 DJ |
5150 | struct type *t; |
5151 | ||
0db7851f | 5152 | bit = verify_floatformat (bit, fmt); |
77b7c781 | 5153 | t = arch_type (gdbarch, TYPE_CODE_FLT, bit, name); |
0db7851f | 5154 | TYPE_FLOATFORMAT (t) = fmt; |
b79497cb | 5155 | |
8da61cc4 DJ |
5156 | return t; |
5157 | } | |
5158 | ||
88dfca6c UW |
5159 | /* Allocate a TYPE_CODE_DECFLOAT type structure associated with GDBARCH. |
5160 | BIT is the type size in bits. NAME is the type name. */ | |
5161 | ||
5162 | struct type * | |
5163 | arch_decfloat_type (struct gdbarch *gdbarch, int bit, const char *name) | |
5164 | { | |
5165 | struct type *t; | |
5166 | ||
77b7c781 | 5167 | t = arch_type (gdbarch, TYPE_CODE_DECFLOAT, bit, name); |
88dfca6c UW |
5168 | return t; |
5169 | } | |
5170 | ||
e9bb382b UW |
5171 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with GDBARCH. |
5172 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
5212577a | 5173 | |
27067745 | 5174 | struct type * |
e9bb382b | 5175 | arch_complex_type (struct gdbarch *gdbarch, |
695bfa52 | 5176 | const char *name, struct type *target_type) |
27067745 UW |
5177 | { |
5178 | struct type *t; | |
d8734c88 | 5179 | |
e9bb382b | 5180 | t = arch_type (gdbarch, TYPE_CODE_COMPLEX, |
77b7c781 | 5181 | 2 * TYPE_LENGTH (target_type) * TARGET_CHAR_BIT, name); |
27067745 UW |
5182 | TYPE_TARGET_TYPE (t) = target_type; |
5183 | return t; | |
5184 | } | |
5185 | ||
88dfca6c UW |
5186 | /* Allocate a TYPE_CODE_PTR type structure associated with GDBARCH. |
5187 | BIT is the pointer type size in bits. NAME is the type name. | |
5188 | TARGET_TYPE is the pointer target type. Always sets the pointer type's | |
5189 | TYPE_UNSIGNED flag. */ | |
5190 | ||
5191 | struct type * | |
5192 | arch_pointer_type (struct gdbarch *gdbarch, | |
5193 | int bit, const char *name, struct type *target_type) | |
5194 | { | |
5195 | struct type *t; | |
5196 | ||
77b7c781 | 5197 | t = arch_type (gdbarch, TYPE_CODE_PTR, bit, name); |
88dfca6c UW |
5198 | TYPE_TARGET_TYPE (t) = target_type; |
5199 | TYPE_UNSIGNED (t) = 1; | |
5200 | return t; | |
5201 | } | |
5202 | ||
e9bb382b | 5203 | /* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH. |
77b7c781 | 5204 | NAME is the type name. BIT is the size of the flag word in bits. */ |
5212577a | 5205 | |
e9bb382b | 5206 | struct type * |
77b7c781 | 5207 | arch_flags_type (struct gdbarch *gdbarch, const char *name, int bit) |
e9bb382b | 5208 | { |
e9bb382b UW |
5209 | struct type *type; |
5210 | ||
77b7c781 | 5211 | type = arch_type (gdbarch, TYPE_CODE_FLAGS, bit, name); |
e9bb382b | 5212 | TYPE_UNSIGNED (type) = 1; |
81516450 DE |
5213 | TYPE_NFIELDS (type) = 0; |
5214 | /* Pre-allocate enough space assuming every field is one bit. */ | |
224c3ddb | 5215 | TYPE_FIELDS (type) |
77b7c781 | 5216 | = (struct field *) TYPE_ZALLOC (type, bit * sizeof (struct field)); |
e9bb382b UW |
5217 | |
5218 | return type; | |
5219 | } | |
5220 | ||
5221 | /* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
81516450 DE |
5222 | position BITPOS is called NAME. Pass NAME as "" for fields that |
5223 | should not be printed. */ | |
5224 | ||
5225 | void | |
5226 | append_flags_type_field (struct type *type, int start_bitpos, int nr_bits, | |
695bfa52 | 5227 | struct type *field_type, const char *name) |
81516450 DE |
5228 | { |
5229 | int type_bitsize = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
5230 | int field_nr = TYPE_NFIELDS (type); | |
5231 | ||
5232 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS); | |
5233 | gdb_assert (TYPE_NFIELDS (type) + 1 <= type_bitsize); | |
5234 | gdb_assert (start_bitpos >= 0 && start_bitpos < type_bitsize); | |
5235 | gdb_assert (nr_bits >= 1 && nr_bits <= type_bitsize); | |
5236 | gdb_assert (name != NULL); | |
5237 | ||
5238 | TYPE_FIELD_NAME (type, field_nr) = xstrdup (name); | |
5239 | TYPE_FIELD_TYPE (type, field_nr) = field_type; | |
5240 | SET_FIELD_BITPOS (TYPE_FIELD (type, field_nr), start_bitpos); | |
5241 | TYPE_FIELD_BITSIZE (type, field_nr) = nr_bits; | |
5242 | ++TYPE_NFIELDS (type); | |
5243 | } | |
5244 | ||
5245 | /* Special version of append_flags_type_field to add a flag field. | |
5246 | Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
e9bb382b | 5247 | position BITPOS is called NAME. */ |
5212577a | 5248 | |
e9bb382b | 5249 | void |
695bfa52 | 5250 | append_flags_type_flag (struct type *type, int bitpos, const char *name) |
e9bb382b | 5251 | { |
81516450 | 5252 | struct gdbarch *gdbarch = get_type_arch (type); |
e9bb382b | 5253 | |
81516450 DE |
5254 | append_flags_type_field (type, bitpos, 1, |
5255 | builtin_type (gdbarch)->builtin_bool, | |
5256 | name); | |
e9bb382b UW |
5257 | } |
5258 | ||
5259 | /* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as | |
5260 | specified by CODE) associated with GDBARCH. NAME is the type name. */ | |
5212577a | 5261 | |
e9bb382b | 5262 | struct type * |
695bfa52 TT |
5263 | arch_composite_type (struct gdbarch *gdbarch, const char *name, |
5264 | enum type_code code) | |
e9bb382b UW |
5265 | { |
5266 | struct type *t; | |
d8734c88 | 5267 | |
e9bb382b UW |
5268 | gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION); |
5269 | t = arch_type (gdbarch, code, 0, NULL); | |
5270 | TYPE_TAG_NAME (t) = name; | |
5271 | INIT_CPLUS_SPECIFIC (t); | |
5272 | return t; | |
5273 | } | |
5274 | ||
5275 | /* Add new field with name NAME and type FIELD to composite type T. | |
f5dff777 DJ |
5276 | Do not set the field's position or adjust the type's length; |
5277 | the caller should do so. Return the new field. */ | |
5212577a | 5278 | |
f5dff777 | 5279 | struct field * |
695bfa52 | 5280 | append_composite_type_field_raw (struct type *t, const char *name, |
f5dff777 | 5281 | struct type *field) |
e9bb382b UW |
5282 | { |
5283 | struct field *f; | |
d8734c88 | 5284 | |
e9bb382b | 5285 | TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; |
224c3ddb SM |
5286 | TYPE_FIELDS (t) = XRESIZEVEC (struct field, TYPE_FIELDS (t), |
5287 | TYPE_NFIELDS (t)); | |
e9bb382b UW |
5288 | f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); |
5289 | memset (f, 0, sizeof f[0]); | |
5290 | FIELD_TYPE (f[0]) = field; | |
5291 | FIELD_NAME (f[0]) = name; | |
f5dff777 DJ |
5292 | return f; |
5293 | } | |
5294 | ||
5295 | /* Add new field with name NAME and type FIELD to composite type T. | |
5296 | ALIGNMENT (if non-zero) specifies the minimum field alignment. */ | |
5212577a | 5297 | |
f5dff777 | 5298 | void |
695bfa52 | 5299 | append_composite_type_field_aligned (struct type *t, const char *name, |
f5dff777 DJ |
5300 | struct type *field, int alignment) |
5301 | { | |
5302 | struct field *f = append_composite_type_field_raw (t, name, field); | |
d8734c88 | 5303 | |
e9bb382b UW |
5304 | if (TYPE_CODE (t) == TYPE_CODE_UNION) |
5305 | { | |
5306 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) | |
5307 | TYPE_LENGTH (t) = TYPE_LENGTH (field); | |
5308 | } | |
5309 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
5310 | { | |
5311 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
5312 | if (TYPE_NFIELDS (t) > 1) | |
5313 | { | |
f41f5e61 PA |
5314 | SET_FIELD_BITPOS (f[0], |
5315 | (FIELD_BITPOS (f[-1]) | |
5316 | + (TYPE_LENGTH (FIELD_TYPE (f[-1])) | |
5317 | * TARGET_CHAR_BIT))); | |
e9bb382b UW |
5318 | |
5319 | if (alignment) | |
5320 | { | |
86c3c1fc AB |
5321 | int left; |
5322 | ||
5323 | alignment *= TARGET_CHAR_BIT; | |
5324 | left = FIELD_BITPOS (f[0]) % alignment; | |
d8734c88 | 5325 | |
e9bb382b UW |
5326 | if (left) |
5327 | { | |
f41f5e61 | 5328 | SET_FIELD_BITPOS (f[0], FIELD_BITPOS (f[0]) + (alignment - left)); |
86c3c1fc | 5329 | TYPE_LENGTH (t) += (alignment - left) / TARGET_CHAR_BIT; |
e9bb382b UW |
5330 | } |
5331 | } | |
5332 | } | |
5333 | } | |
5334 | } | |
5335 | ||
5336 | /* Add new field with name NAME and type FIELD to composite type T. */ | |
5212577a | 5337 | |
e9bb382b | 5338 | void |
695bfa52 | 5339 | append_composite_type_field (struct type *t, const char *name, |
e9bb382b UW |
5340 | struct type *field) |
5341 | { | |
5342 | append_composite_type_field_aligned (t, name, field, 0); | |
5343 | } | |
5344 | ||
000177f0 AC |
5345 | static struct gdbarch_data *gdbtypes_data; |
5346 | ||
5347 | const struct builtin_type * | |
5348 | builtin_type (struct gdbarch *gdbarch) | |
5349 | { | |
9a3c8263 | 5350 | return (const struct builtin_type *) gdbarch_data (gdbarch, gdbtypes_data); |
000177f0 AC |
5351 | } |
5352 | ||
5353 | static void * | |
5354 | gdbtypes_post_init (struct gdbarch *gdbarch) | |
5355 | { | |
5356 | struct builtin_type *builtin_type | |
5357 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); | |
5358 | ||
46bf5051 | 5359 | /* Basic types. */ |
e9bb382b | 5360 | builtin_type->builtin_void |
77b7c781 | 5361 | = arch_type (gdbarch, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void"); |
e9bb382b UW |
5362 | builtin_type->builtin_char |
5363 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5364 | !gdbarch_char_signed (gdbarch), "char"); | |
c413c448 | 5365 | TYPE_NOSIGN (builtin_type->builtin_char) = 1; |
e9bb382b UW |
5366 | builtin_type->builtin_signed_char |
5367 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5368 | 0, "signed char"); | |
5369 | builtin_type->builtin_unsigned_char | |
5370 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5371 | 1, "unsigned char"); | |
5372 | builtin_type->builtin_short | |
5373 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
5374 | 0, "short"); | |
5375 | builtin_type->builtin_unsigned_short | |
5376 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
5377 | 1, "unsigned short"); | |
5378 | builtin_type->builtin_int | |
5379 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
5380 | 0, "int"); | |
5381 | builtin_type->builtin_unsigned_int | |
5382 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
5383 | 1, "unsigned int"); | |
5384 | builtin_type->builtin_long | |
5385 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
5386 | 0, "long"); | |
5387 | builtin_type->builtin_unsigned_long | |
5388 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
5389 | 1, "unsigned long"); | |
5390 | builtin_type->builtin_long_long | |
5391 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
5392 | 0, "long long"); | |
5393 | builtin_type->builtin_unsigned_long_long | |
5394 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
5395 | 1, "unsigned long long"); | |
70bd8e24 | 5396 | builtin_type->builtin_float |
e9bb382b | 5397 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), |
27067745 | 5398 | "float", gdbarch_float_format (gdbarch)); |
70bd8e24 | 5399 | builtin_type->builtin_double |
e9bb382b | 5400 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), |
27067745 | 5401 | "double", gdbarch_double_format (gdbarch)); |
70bd8e24 | 5402 | builtin_type->builtin_long_double |
e9bb382b | 5403 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), |
27067745 | 5404 | "long double", gdbarch_long_double_format (gdbarch)); |
70bd8e24 | 5405 | builtin_type->builtin_complex |
e9bb382b UW |
5406 | = arch_complex_type (gdbarch, "complex", |
5407 | builtin_type->builtin_float); | |
70bd8e24 | 5408 | builtin_type->builtin_double_complex |
e9bb382b UW |
5409 | = arch_complex_type (gdbarch, "double complex", |
5410 | builtin_type->builtin_double); | |
5411 | builtin_type->builtin_string | |
77b7c781 | 5412 | = arch_type (gdbarch, TYPE_CODE_STRING, TARGET_CHAR_BIT, "string"); |
e9bb382b | 5413 | builtin_type->builtin_bool |
77b7c781 | 5414 | = arch_type (gdbarch, TYPE_CODE_BOOL, TARGET_CHAR_BIT, "bool"); |
000177f0 | 5415 | |
7678ef8f TJB |
5416 | /* The following three are about decimal floating point types, which |
5417 | are 32-bits, 64-bits and 128-bits respectively. */ | |
5418 | builtin_type->builtin_decfloat | |
88dfca6c | 5419 | = arch_decfloat_type (gdbarch, 32, "_Decimal32"); |
7678ef8f | 5420 | builtin_type->builtin_decdouble |
88dfca6c | 5421 | = arch_decfloat_type (gdbarch, 64, "_Decimal64"); |
7678ef8f | 5422 | builtin_type->builtin_declong |
88dfca6c | 5423 | = arch_decfloat_type (gdbarch, 128, "_Decimal128"); |
7678ef8f | 5424 | |
69feb676 | 5425 | /* "True" character types. */ |
e9bb382b UW |
5426 | builtin_type->builtin_true_char |
5427 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 0, "true character"); | |
5428 | builtin_type->builtin_true_unsigned_char | |
5429 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 1, "true character"); | |
69feb676 | 5430 | |
df4df182 | 5431 | /* Fixed-size integer types. */ |
e9bb382b UW |
5432 | builtin_type->builtin_int0 |
5433 | = arch_integer_type (gdbarch, 0, 0, "int0_t"); | |
5434 | builtin_type->builtin_int8 | |
5435 | = arch_integer_type (gdbarch, 8, 0, "int8_t"); | |
5436 | builtin_type->builtin_uint8 | |
5437 | = arch_integer_type (gdbarch, 8, 1, "uint8_t"); | |
5438 | builtin_type->builtin_int16 | |
5439 | = arch_integer_type (gdbarch, 16, 0, "int16_t"); | |
5440 | builtin_type->builtin_uint16 | |
5441 | = arch_integer_type (gdbarch, 16, 1, "uint16_t"); | |
5442 | builtin_type->builtin_int32 | |
5443 | = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
5444 | builtin_type->builtin_uint32 | |
5445 | = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
5446 | builtin_type->builtin_int64 | |
5447 | = arch_integer_type (gdbarch, 64, 0, "int64_t"); | |
5448 | builtin_type->builtin_uint64 | |
5449 | = arch_integer_type (gdbarch, 64, 1, "uint64_t"); | |
5450 | builtin_type->builtin_int128 | |
5451 | = arch_integer_type (gdbarch, 128, 0, "int128_t"); | |
5452 | builtin_type->builtin_uint128 | |
5453 | = arch_integer_type (gdbarch, 128, 1, "uint128_t"); | |
2844d6b5 KW |
5454 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_int8) |= |
5455 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
5456 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_uint8) |= | |
5457 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
df4df182 | 5458 | |
9a22f0d0 PM |
5459 | /* Wide character types. */ |
5460 | builtin_type->builtin_char16 | |
53e710ac | 5461 | = arch_integer_type (gdbarch, 16, 1, "char16_t"); |
9a22f0d0 | 5462 | builtin_type->builtin_char32 |
53e710ac | 5463 | = arch_integer_type (gdbarch, 32, 1, "char32_t"); |
53375380 PA |
5464 | builtin_type->builtin_wchar |
5465 | = arch_integer_type (gdbarch, gdbarch_wchar_bit (gdbarch), | |
5466 | !gdbarch_wchar_signed (gdbarch), "wchar_t"); | |
9a22f0d0 | 5467 | |
46bf5051 | 5468 | /* Default data/code pointer types. */ |
e9bb382b UW |
5469 | builtin_type->builtin_data_ptr |
5470 | = lookup_pointer_type (builtin_type->builtin_void); | |
5471 | builtin_type->builtin_func_ptr | |
5472 | = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
0875794a JK |
5473 | builtin_type->builtin_func_func |
5474 | = lookup_function_type (builtin_type->builtin_func_ptr); | |
46bf5051 | 5475 | |
78267919 | 5476 | /* This type represents a GDB internal function. */ |
e9bb382b UW |
5477 | builtin_type->internal_fn |
5478 | = arch_type (gdbarch, TYPE_CODE_INTERNAL_FUNCTION, 0, | |
5479 | "<internal function>"); | |
78267919 | 5480 | |
e81e7f5e SC |
5481 | /* This type represents an xmethod. */ |
5482 | builtin_type->xmethod | |
5483 | = arch_type (gdbarch, TYPE_CODE_XMETHOD, 0, "<xmethod>"); | |
5484 | ||
46bf5051 UW |
5485 | return builtin_type; |
5486 | } | |
5487 | ||
46bf5051 UW |
5488 | /* This set of objfile-based types is intended to be used by symbol |
5489 | readers as basic types. */ | |
5490 | ||
5491 | static const struct objfile_data *objfile_type_data; | |
5492 | ||
5493 | const struct objfile_type * | |
5494 | objfile_type (struct objfile *objfile) | |
5495 | { | |
5496 | struct gdbarch *gdbarch; | |
5497 | struct objfile_type *objfile_type | |
9a3c8263 | 5498 | = (struct objfile_type *) objfile_data (objfile, objfile_type_data); |
46bf5051 UW |
5499 | |
5500 | if (objfile_type) | |
5501 | return objfile_type; | |
5502 | ||
5503 | objfile_type = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
5504 | 1, struct objfile_type); | |
5505 | ||
5506 | /* Use the objfile architecture to determine basic type properties. */ | |
5507 | gdbarch = get_objfile_arch (objfile); | |
5508 | ||
5509 | /* Basic types. */ | |
5510 | objfile_type->builtin_void | |
77b7c781 | 5511 | = init_type (objfile, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void"); |
46bf5051 | 5512 | objfile_type->builtin_char |
19f392bc UW |
5513 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5514 | !gdbarch_char_signed (gdbarch), "char"); | |
c413c448 | 5515 | TYPE_NOSIGN (objfile_type->builtin_char) = 1; |
46bf5051 | 5516 | objfile_type->builtin_signed_char |
19f392bc UW |
5517 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5518 | 0, "signed char"); | |
46bf5051 | 5519 | objfile_type->builtin_unsigned_char |
19f392bc UW |
5520 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5521 | 1, "unsigned char"); | |
46bf5051 | 5522 | objfile_type->builtin_short |
19f392bc UW |
5523 | = init_integer_type (objfile, gdbarch_short_bit (gdbarch), |
5524 | 0, "short"); | |
46bf5051 | 5525 | objfile_type->builtin_unsigned_short |
19f392bc UW |
5526 | = init_integer_type (objfile, gdbarch_short_bit (gdbarch), |
5527 | 1, "unsigned short"); | |
46bf5051 | 5528 | objfile_type->builtin_int |
19f392bc UW |
5529 | = init_integer_type (objfile, gdbarch_int_bit (gdbarch), |
5530 | 0, "int"); | |
46bf5051 | 5531 | objfile_type->builtin_unsigned_int |
19f392bc UW |
5532 | = init_integer_type (objfile, gdbarch_int_bit (gdbarch), |
5533 | 1, "unsigned int"); | |
46bf5051 | 5534 | objfile_type->builtin_long |
19f392bc UW |
5535 | = init_integer_type (objfile, gdbarch_long_bit (gdbarch), |
5536 | 0, "long"); | |
46bf5051 | 5537 | objfile_type->builtin_unsigned_long |
19f392bc UW |
5538 | = init_integer_type (objfile, gdbarch_long_bit (gdbarch), |
5539 | 1, "unsigned long"); | |
46bf5051 | 5540 | objfile_type->builtin_long_long |
19f392bc UW |
5541 | = init_integer_type (objfile, gdbarch_long_long_bit (gdbarch), |
5542 | 0, "long long"); | |
46bf5051 | 5543 | objfile_type->builtin_unsigned_long_long |
19f392bc UW |
5544 | = init_integer_type (objfile, gdbarch_long_long_bit (gdbarch), |
5545 | 1, "unsigned long long"); | |
46bf5051 | 5546 | objfile_type->builtin_float |
19f392bc UW |
5547 | = init_float_type (objfile, gdbarch_float_bit (gdbarch), |
5548 | "float", gdbarch_float_format (gdbarch)); | |
46bf5051 | 5549 | objfile_type->builtin_double |
19f392bc UW |
5550 | = init_float_type (objfile, gdbarch_double_bit (gdbarch), |
5551 | "double", gdbarch_double_format (gdbarch)); | |
46bf5051 | 5552 | objfile_type->builtin_long_double |
19f392bc UW |
5553 | = init_float_type (objfile, gdbarch_long_double_bit (gdbarch), |
5554 | "long double", gdbarch_long_double_format (gdbarch)); | |
46bf5051 UW |
5555 | |
5556 | /* This type represents a type that was unrecognized in symbol read-in. */ | |
5557 | objfile_type->builtin_error | |
19f392bc | 5558 | = init_type (objfile, TYPE_CODE_ERROR, 0, "<unknown type>"); |
46bf5051 UW |
5559 | |
5560 | /* The following set of types is used for symbols with no | |
5561 | debug information. */ | |
5562 | objfile_type->nodebug_text_symbol | |
77b7c781 | 5563 | = init_type (objfile, TYPE_CODE_FUNC, TARGET_CHAR_BIT, |
19f392bc | 5564 | "<text variable, no debug info>"); |
0875794a | 5565 | objfile_type->nodebug_text_gnu_ifunc_symbol |
77b7c781 | 5566 | = init_type (objfile, TYPE_CODE_FUNC, TARGET_CHAR_BIT, |
19f392bc | 5567 | "<text gnu-indirect-function variable, no debug info>"); |
19f392bc | 5568 | TYPE_GNU_IFUNC (objfile_type->nodebug_text_gnu_ifunc_symbol) = 1; |
0875794a | 5569 | objfile_type->nodebug_got_plt_symbol |
19f392bc UW |
5570 | = init_pointer_type (objfile, gdbarch_addr_bit (gdbarch), |
5571 | "<text from jump slot in .got.plt, no debug info>", | |
5572 | objfile_type->nodebug_text_symbol); | |
46bf5051 | 5573 | objfile_type->nodebug_data_symbol |
46a4882b | 5574 | = init_nodebug_var_type (objfile, "<data variable, no debug info>"); |
46bf5051 | 5575 | objfile_type->nodebug_unknown_symbol |
46a4882b | 5576 | = init_nodebug_var_type (objfile, "<variable (not text or data), no debug info>"); |
46bf5051 | 5577 | objfile_type->nodebug_tls_symbol |
46a4882b | 5578 | = init_nodebug_var_type (objfile, "<thread local variable, no debug info>"); |
000177f0 AC |
5579 | |
5580 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
0a7cfe2c | 5581 | the same. |
000177f0 AC |
5582 | |
5583 | The upshot is: | |
5584 | - gdb's `struct type' always describes the target's | |
5585 | representation. | |
5586 | - gdb's `struct value' objects should always hold values in | |
5587 | target form. | |
5588 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
5589 | address space that the assembler and linker work with. Thus, | |
5590 | since target_read_memory takes a CORE_ADDR as an argument, it | |
5591 | can access any memory on the target, even if the processor has | |
5592 | separate code and data address spaces. | |
5593 | ||
46bf5051 UW |
5594 | In this context, objfile_type->builtin_core_addr is a bit odd: |
5595 | it's a target type for a value the target will never see. It's | |
5596 | only used to hold the values of (typeless) linker symbols, which | |
5597 | are indeed in the unified virtual address space. */ | |
000177f0 | 5598 | |
46bf5051 | 5599 | objfile_type->builtin_core_addr |
19f392bc UW |
5600 | = init_integer_type (objfile, gdbarch_addr_bit (gdbarch), 1, |
5601 | "__CORE_ADDR"); | |
64c50499 | 5602 | |
46bf5051 UW |
5603 | set_objfile_data (objfile, objfile_type_data, objfile_type); |
5604 | return objfile_type; | |
000177f0 AC |
5605 | } |
5606 | ||
c906108c | 5607 | void |
fba45db2 | 5608 | _initialize_gdbtypes (void) |
c906108c | 5609 | { |
5674de60 | 5610 | gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
46bf5051 | 5611 | objfile_type_data = register_objfile_data (); |
5674de60 | 5612 | |
ccce17b0 YQ |
5613 | add_setshow_zuinteger_cmd ("overload", no_class, &overload_debug, |
5614 | _("Set debugging of C++ overloading."), | |
5615 | _("Show debugging of C++ overloading."), | |
5616 | _("When enabled, ranking of the " | |
5617 | "functions is displayed."), | |
5618 | NULL, | |
5619 | show_overload_debug, | |
5620 | &setdebuglist, &showdebuglist); | |
5674de60 | 5621 | |
7ba81444 | 5622 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 | 5623 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3e43a32a MS |
5624 | &opaque_type_resolution, |
5625 | _("Set resolution of opaque struct/class/union" | |
5626 | " types (if set before loading symbols)."), | |
5627 | _("Show resolution of opaque struct/class/union" | |
5628 | " types (if set before loading symbols)."), | |
5629 | NULL, NULL, | |
5674de60 UW |
5630 | show_opaque_type_resolution, |
5631 | &setlist, &showlist); | |
a451cb65 KS |
5632 | |
5633 | /* Add an option to permit non-strict type checking. */ | |
5634 | add_setshow_boolean_cmd ("type", class_support, | |
5635 | &strict_type_checking, | |
5636 | _("Set strict type checking."), | |
5637 | _("Show strict type checking."), | |
5638 | NULL, NULL, | |
5639 | show_strict_type_checking, | |
5640 | &setchecklist, &showchecklist); | |
c906108c | 5641 | } |