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c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
4f2aea11 | 2 | |
1d506c26 | 3 | Copyright (C) 1992-2024 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 | 21 | |
c906108c SS |
22 | #include "bfd.h" |
23 | #include "symtab.h" | |
24 | #include "symfile.h" | |
25 | #include "objfiles.h" | |
26 | #include "gdbtypes.h" | |
27 | #include "expression.h" | |
28 | #include "language.h" | |
29 | #include "target.h" | |
30 | #include "value.h" | |
31 | #include "demangle.h" | |
32 | #include "complaints.h" | |
5b9707eb | 33 | #include "cli/cli-cmds.h" |
015a42b4 | 34 | #include "cp-abi.h" |
ae5a43e0 | 35 | #include "hashtab.h" |
8de20a37 | 36 | #include "cp-support.h" |
ca092b61 | 37 | #include "bcache.h" |
82ca8957 | 38 | #include "dwarf2/loc.h" |
b84aaada | 39 | #include "dwarf2/read.h" |
80180f79 | 40 | #include "gdbcore.h" |
1841ee5d | 41 | #include "floatformat.h" |
a5c641b5 | 42 | #include "f-lang.h" |
ef83a141 | 43 | #include <algorithm> |
09584414 | 44 | #include "gmp-utils.h" |
84914f59 TT |
45 | #include "rust-lang.h" |
46 | #include "ada-lang.h" | |
ac3aafc7 | 47 | |
ac03c8d8 TT |
48 | /* The value of an invalid conversion badness. */ |
49 | #define INVALID_CONVERSION 100 | |
50 | ||
5f59e7e0 | 51 | static struct dynamic_prop_list * |
52 | copy_dynamic_prop_list (struct obstack *, struct dynamic_prop_list *); | |
53 | ||
6403aeea SW |
54 | /* Initialize BADNESS constants. */ |
55 | ||
ac03c8d8 | 56 | const struct rank LENGTH_MISMATCH_BADNESS = {INVALID_CONVERSION,0}; |
6403aeea | 57 | |
ac03c8d8 TT |
58 | const struct rank TOO_FEW_PARAMS_BADNESS = {INVALID_CONVERSION,0}; |
59 | const struct rank INCOMPATIBLE_TYPE_BADNESS = {INVALID_CONVERSION,0}; | |
6403aeea | 60 | |
a9d5ef47 | 61 | const struct rank EXACT_MATCH_BADNESS = {0,0}; |
6403aeea | 62 | |
a9d5ef47 SW |
63 | const struct rank INTEGER_PROMOTION_BADNESS = {1,0}; |
64 | const struct rank FLOAT_PROMOTION_BADNESS = {1,0}; | |
65 | const struct rank BASE_PTR_CONVERSION_BADNESS = {1,0}; | |
e15c3eb4 | 66 | const struct rank CV_CONVERSION_BADNESS = {1, 0}; |
a9d5ef47 SW |
67 | const struct rank INTEGER_CONVERSION_BADNESS = {2,0}; |
68 | const struct rank FLOAT_CONVERSION_BADNESS = {2,0}; | |
69 | const struct rank INT_FLOAT_CONVERSION_BADNESS = {2,0}; | |
70 | const struct rank VOID_PTR_CONVERSION_BADNESS = {2,0}; | |
5b4f6e25 | 71 | const struct rank BOOL_CONVERSION_BADNESS = {3,0}; |
a9d5ef47 SW |
72 | const struct rank BASE_CONVERSION_BADNESS = {2,0}; |
73 | const struct rank REFERENCE_CONVERSION_BADNESS = {2,0}; | |
06acc08f | 74 | const struct rank REFERENCE_SEE_THROUGH_BADNESS = {0,1}; |
da096638 | 75 | const struct rank NULL_POINTER_CONVERSION_BADNESS = {2,0}; |
a9d5ef47 | 76 | const struct rank NS_POINTER_CONVERSION_BADNESS = {10,0}; |
a451cb65 | 77 | const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS = {3,0}; |
1d2f86b6 | 78 | const struct rank VARARG_BADNESS = {4, 0}; |
6403aeea | 79 | |
8da61cc4 | 80 | /* Floatformat pairs. */ |
f9e9243a UW |
81 | const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN] = { |
82 | &floatformat_ieee_half_big, | |
83 | &floatformat_ieee_half_little | |
84 | }; | |
8da61cc4 DJ |
85 | const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { |
86 | &floatformat_ieee_single_big, | |
87 | &floatformat_ieee_single_little | |
88 | }; | |
89 | const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { | |
90 | &floatformat_ieee_double_big, | |
91 | &floatformat_ieee_double_little | |
92 | }; | |
552f1157 TY |
93 | const struct floatformat *floatformats_ieee_quad[BFD_ENDIAN_UNKNOWN] = { |
94 | &floatformat_ieee_quad_big, | |
95 | &floatformat_ieee_quad_little | |
96 | }; | |
8da61cc4 DJ |
97 | const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { |
98 | &floatformat_ieee_double_big, | |
99 | &floatformat_ieee_double_littlebyte_bigword | |
100 | }; | |
101 | const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { | |
102 | &floatformat_i387_ext, | |
103 | &floatformat_i387_ext | |
104 | }; | |
105 | const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { | |
106 | &floatformat_m68881_ext, | |
107 | &floatformat_m68881_ext | |
108 | }; | |
109 | const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { | |
110 | &floatformat_arm_ext_big, | |
111 | &floatformat_arm_ext_littlebyte_bigword | |
112 | }; | |
113 | const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { | |
114 | &floatformat_ia64_spill_big, | |
115 | &floatformat_ia64_spill_little | |
116 | }; | |
8da61cc4 DJ |
117 | const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { |
118 | &floatformat_vax_f, | |
119 | &floatformat_vax_f | |
120 | }; | |
121 | const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { | |
122 | &floatformat_vax_d, | |
123 | &floatformat_vax_d | |
124 | }; | |
b14d30e1 | 125 | const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { |
f5aee5ee AM |
126 | &floatformat_ibm_long_double_big, |
127 | &floatformat_ibm_long_double_little | |
b14d30e1 | 128 | }; |
2a67f09d FW |
129 | const struct floatformat *floatformats_bfloat16[BFD_ENDIAN_UNKNOWN] = { |
130 | &floatformat_bfloat16_big, | |
131 | &floatformat_bfloat16_little | |
132 | }; | |
8da61cc4 | 133 | |
2873700e KS |
134 | /* Should opaque types be resolved? */ |
135 | ||
491144b5 | 136 | static bool opaque_type_resolution = true; |
2873700e | 137 | |
79bb1944 | 138 | /* See gdbtypes.h. */ |
2873700e KS |
139 | |
140 | unsigned int overload_debug = 0; | |
141 | ||
a451cb65 KS |
142 | /* A flag to enable strict type checking. */ |
143 | ||
491144b5 | 144 | static bool strict_type_checking = true; |
a451cb65 | 145 | |
2873700e | 146 | /* A function to show whether opaque types are resolved. */ |
5212577a | 147 | |
920d2a44 AC |
148 | static void |
149 | show_opaque_type_resolution (struct ui_file *file, int from_tty, | |
7ba81444 MS |
150 | struct cmd_list_element *c, |
151 | const char *value) | |
920d2a44 | 152 | { |
6cb06a8c TT |
153 | gdb_printf (file, _("Resolution of opaque struct/class/union types " |
154 | "(if set before loading symbols) is %s.\n"), | |
155 | value); | |
920d2a44 AC |
156 | } |
157 | ||
2873700e | 158 | /* A function to show whether C++ overload debugging is enabled. */ |
5212577a | 159 | |
920d2a44 AC |
160 | static void |
161 | show_overload_debug (struct ui_file *file, int from_tty, | |
162 | struct cmd_list_element *c, const char *value) | |
163 | { | |
6cb06a8c TT |
164 | gdb_printf (file, _("Debugging of C++ overloading is %s.\n"), |
165 | value); | |
920d2a44 | 166 | } |
c906108c | 167 | |
a451cb65 KS |
168 | /* A function to show the status of strict type checking. */ |
169 | ||
170 | static void | |
171 | show_strict_type_checking (struct ui_file *file, int from_tty, | |
172 | struct cmd_list_element *c, const char *value) | |
173 | { | |
6cb06a8c | 174 | gdb_printf (file, _("Strict type checking is %s.\n"), value); |
a451cb65 KS |
175 | } |
176 | ||
5212577a | 177 | \f |
6a4d297c TT |
178 | /* Helper function to initialize a newly allocated type. Set type code |
179 | to CODE and initialize the type-specific fields accordingly. */ | |
180 | ||
181 | static void | |
182 | set_type_code (struct type *type, enum type_code code) | |
183 | { | |
184 | type->set_code (code); | |
185 | ||
186 | switch (code) | |
187 | { | |
188 | case TYPE_CODE_STRUCT: | |
189 | case TYPE_CODE_UNION: | |
190 | case TYPE_CODE_NAMESPACE: | |
191 | INIT_CPLUS_SPECIFIC (type); | |
192 | break; | |
193 | case TYPE_CODE_FLT: | |
194 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT; | |
195 | break; | |
196 | case TYPE_CODE_FUNC: | |
197 | INIT_FUNC_SPECIFIC (type); | |
198 | break; | |
199 | case TYPE_CODE_FIXED_POINT: | |
200 | INIT_FIXED_POINT_SPECIFIC (type); | |
201 | break; | |
202 | } | |
203 | } | |
204 | ||
205 | /* See gdbtypes.h. */ | |
206 | ||
207 | type * | |
208 | type_allocator::new_type () | |
209 | { | |
210 | if (m_smash) | |
211 | return m_data.type; | |
212 | ||
213 | obstack *obstack = (m_is_objfile | |
214 | ? &m_data.objfile->objfile_obstack | |
215 | : gdbarch_obstack (m_data.gdbarch)); | |
216 | ||
217 | /* Alloc the structure and start off with all fields zeroed. */ | |
218 | struct type *type = OBSTACK_ZALLOC (obstack, struct type); | |
219 | TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (obstack, struct main_type); | |
76fc0f62 | 220 | TYPE_MAIN_TYPE (type)->m_lang = m_lang; |
6a4d297c TT |
221 | |
222 | if (m_is_objfile) | |
223 | { | |
224 | OBJSTAT (m_data.objfile, n_types++); | |
225 | type->set_owner (m_data.objfile); | |
226 | } | |
227 | else | |
228 | type->set_owner (m_data.gdbarch); | |
229 | ||
230 | /* Initialize the fields that might not be zero. */ | |
231 | type->set_code (TYPE_CODE_UNDEF); | |
232 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ | |
233 | ||
234 | return type; | |
235 | } | |
236 | ||
8ee511af | 237 | /* See gdbtypes.h. */ |
e9bb382b | 238 | |
6a4d297c TT |
239 | type * |
240 | type_allocator::new_type (enum type_code code, int bit, const char *name) | |
241 | { | |
242 | struct type *type = new_type (); | |
243 | set_type_code (type, code); | |
244 | gdb_assert ((bit % TARGET_CHAR_BIT) == 0); | |
245 | type->set_length (bit / TARGET_CHAR_BIT); | |
246 | ||
247 | if (name != nullptr) | |
248 | { | |
249 | obstack *obstack = (m_is_objfile | |
250 | ? &m_data.objfile->objfile_obstack | |
251 | : gdbarch_obstack (m_data.gdbarch)); | |
252 | type->set_name (obstack_strdup (obstack, name)); | |
253 | } | |
254 | ||
255 | return type; | |
256 | } | |
257 | ||
258 | /* See gdbtypes.h. */ | |
259 | ||
260 | gdbarch * | |
261 | type_allocator::arch () | |
262 | { | |
263 | if (m_smash) | |
264 | return m_data.type->arch (); | |
265 | if (m_is_objfile) | |
266 | return m_data.objfile->arch (); | |
267 | return m_data.gdbarch; | |
268 | } | |
269 | ||
270 | /* See gdbtypes.h. */ | |
271 | ||
8ee511af SM |
272 | gdbarch * |
273 | type::arch () const | |
e9bb382b | 274 | { |
2fabdf33 AB |
275 | struct gdbarch *arch; |
276 | ||
8ee511af SM |
277 | if (this->is_objfile_owned ()) |
278 | arch = this->objfile_owner ()->arch (); | |
e9bb382b | 279 | else |
8ee511af | 280 | arch = this->arch_owner (); |
2fabdf33 AB |
281 | |
282 | /* The ARCH can be NULL if TYPE is associated with neither an objfile nor | |
283 | a gdbarch, however, this is very rare, and even then, in most cases | |
8ee511af | 284 | that type::arch is called, we assume that a non-NULL value is |
2fabdf33 | 285 | returned. */ |
8ee511af | 286 | gdb_assert (arch != nullptr); |
2fabdf33 | 287 | return arch; |
e9bb382b UW |
288 | } |
289 | ||
99ad9427 YQ |
290 | /* See gdbtypes.h. */ |
291 | ||
292 | struct type * | |
293 | get_target_type (struct type *type) | |
294 | { | |
295 | if (type != NULL) | |
296 | { | |
27710edb | 297 | type = type->target_type (); |
99ad9427 YQ |
298 | if (type != NULL) |
299 | type = check_typedef (type); | |
300 | } | |
301 | ||
302 | return type; | |
303 | } | |
304 | ||
2e056931 SM |
305 | /* See gdbtypes.h. */ |
306 | ||
307 | unsigned int | |
308 | type_length_units (struct type *type) | |
309 | { | |
8ee511af | 310 | int unit_size = gdbarch_addressable_memory_unit_size (type->arch ()); |
2e056931 | 311 | |
df86565b | 312 | return type->length () / unit_size; |
2e056931 SM |
313 | } |
314 | ||
2fdde8f8 DJ |
315 | /* Alloc a new type instance structure, fill it with some defaults, |
316 | and point it at OLDTYPE. Allocate the new type instance from the | |
317 | same place as OLDTYPE. */ | |
318 | ||
319 | static struct type * | |
320 | alloc_type_instance (struct type *oldtype) | |
321 | { | |
322 | struct type *type; | |
323 | ||
324 | /* Allocate the structure. */ | |
325 | ||
30625020 | 326 | if (!oldtype->is_objfile_owned ()) |
8ee511af | 327 | type = GDBARCH_OBSTACK_ZALLOC (oldtype->arch_owner (), struct type); |
2fdde8f8 | 328 | else |
6ac37371 | 329 | type = OBSTACK_ZALLOC (&oldtype->objfile_owner ()->objfile_obstack, |
1deafd4e PA |
330 | struct type); |
331 | ||
2fdde8f8 DJ |
332 | TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype); |
333 | ||
334 | TYPE_CHAIN (type) = type; /* Chain back to itself for now. */ | |
335 | ||
c16abbde | 336 | return type; |
2fdde8f8 DJ |
337 | } |
338 | ||
339 | /* Clear all remnants of the previous type at TYPE, in preparation for | |
e9bb382b | 340 | replacing it with something else. Preserve owner information. */ |
5212577a | 341 | |
2fdde8f8 DJ |
342 | static void |
343 | smash_type (struct type *type) | |
344 | { | |
5b7d941b | 345 | bool objfile_owned = type->is_objfile_owned (); |
6ac37371 SM |
346 | objfile *objfile = type->objfile_owner (); |
347 | gdbarch *arch = type->arch_owner (); | |
e9bb382b | 348 | |
2fdde8f8 DJ |
349 | memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
350 | ||
e9bb382b | 351 | /* Restore owner information. */ |
5b7d941b SM |
352 | if (objfile_owned) |
353 | type->set_owner (objfile); | |
354 | else | |
355 | type->set_owner (arch); | |
e9bb382b | 356 | |
2fdde8f8 DJ |
357 | /* For now, delete the rings. */ |
358 | TYPE_CHAIN (type) = type; | |
359 | ||
360 | /* For now, leave the pointer/reference types alone. */ | |
361 | } | |
362 | ||
c906108c SS |
363 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
364 | to a pointer to memory where the pointer type should be stored. | |
365 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
366 | We allocate new memory if needed. */ | |
367 | ||
368 | struct type * | |
fba45db2 | 369 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 370 | { |
52f0bd74 | 371 | struct type *ntype; /* New type */ |
053cb41b | 372 | struct type *chain; |
c906108c SS |
373 | |
374 | ntype = TYPE_POINTER_TYPE (type); | |
375 | ||
c5aa993b | 376 | if (ntype) |
c906108c | 377 | { |
c5aa993b | 378 | if (typeptr == 0) |
7ba81444 MS |
379 | return ntype; /* Don't care about alloc, |
380 | and have new type. */ | |
c906108c | 381 | else if (*typeptr == 0) |
c5aa993b | 382 | { |
7ba81444 | 383 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 384 | return ntype; |
c5aa993b | 385 | } |
c906108c SS |
386 | } |
387 | ||
388 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
389 | { | |
9fa83a7a | 390 | ntype = type_allocator (type).new_type (); |
c906108c SS |
391 | if (typeptr) |
392 | *typeptr = ntype; | |
393 | } | |
7ba81444 | 394 | else /* We have storage, but need to reset it. */ |
c906108c SS |
395 | { |
396 | ntype = *typeptr; | |
053cb41b | 397 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 398 | smash_type (ntype); |
053cb41b | 399 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
400 | } |
401 | ||
8a50fdce | 402 | ntype->set_target_type (type); |
c906108c SS |
403 | TYPE_POINTER_TYPE (type) = ntype; |
404 | ||
5212577a | 405 | /* FIXME! Assumes the machine has only one representation for pointers! */ |
c906108c | 406 | |
b6cdbc9a | 407 | ntype->set_length (gdbarch_ptr_bit (type->arch ()) / TARGET_CHAR_BIT); |
67607e24 | 408 | ntype->set_code (TYPE_CODE_PTR); |
c906108c | 409 | |
67b2adb2 | 410 | /* Mark pointers as unsigned. The target converts between pointers |
76e71323 | 411 | and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and |
7ba81444 | 412 | gdbarch_address_to_pointer. */ |
653223d3 | 413 | ntype->set_is_unsigned (true); |
c5aa993b | 414 | |
053cb41b JB |
415 | /* Update the length of all the other variants of this type. */ |
416 | chain = TYPE_CHAIN (ntype); | |
417 | while (chain != ntype) | |
418 | { | |
df86565b | 419 | chain->set_length (ntype->length ()); |
053cb41b JB |
420 | chain = TYPE_CHAIN (chain); |
421 | } | |
422 | ||
c906108c SS |
423 | return ntype; |
424 | } | |
425 | ||
426 | /* Given a type TYPE, return a type of pointers to that type. | |
427 | May need to construct such a type if this is the first use. */ | |
428 | ||
429 | struct type * | |
fba45db2 | 430 | lookup_pointer_type (struct type *type) |
c906108c | 431 | { |
c5aa993b | 432 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
433 | } |
434 | ||
7ba81444 MS |
435 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, |
436 | points to a pointer to memory where the reference type should be | |
437 | stored. If *TYPEPTR is zero, update it to point to the reference | |
3b224330 AV |
438 | type we return. We allocate new memory if needed. REFCODE denotes |
439 | the kind of reference type to lookup (lvalue or rvalue reference). */ | |
c906108c SS |
440 | |
441 | struct type * | |
3b224330 | 442 | make_reference_type (struct type *type, struct type **typeptr, |
dda83cd7 | 443 | enum type_code refcode) |
c906108c | 444 | { |
52f0bd74 | 445 | struct type *ntype; /* New type */ |
3b224330 | 446 | struct type **reftype; |
1e98b326 | 447 | struct type *chain; |
c906108c | 448 | |
3b224330 AV |
449 | gdb_assert (refcode == TYPE_CODE_REF || refcode == TYPE_CODE_RVALUE_REF); |
450 | ||
451 | ntype = (refcode == TYPE_CODE_REF ? TYPE_REFERENCE_TYPE (type) | |
dda83cd7 | 452 | : TYPE_RVALUE_REFERENCE_TYPE (type)); |
c906108c | 453 | |
c5aa993b | 454 | if (ntype) |
c906108c | 455 | { |
c5aa993b | 456 | if (typeptr == 0) |
7ba81444 MS |
457 | return ntype; /* Don't care about alloc, |
458 | and have new type. */ | |
c906108c | 459 | else if (*typeptr == 0) |
c5aa993b | 460 | { |
7ba81444 | 461 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 462 | return ntype; |
c5aa993b | 463 | } |
c906108c SS |
464 | } |
465 | ||
466 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
467 | { | |
9fa83a7a | 468 | ntype = type_allocator (type).new_type (); |
c906108c SS |
469 | if (typeptr) |
470 | *typeptr = ntype; | |
471 | } | |
7ba81444 | 472 | else /* We have storage, but need to reset it. */ |
c906108c SS |
473 | { |
474 | ntype = *typeptr; | |
1e98b326 | 475 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 476 | smash_type (ntype); |
1e98b326 | 477 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
478 | } |
479 | ||
8a50fdce | 480 | ntype->set_target_type (type); |
3b224330 | 481 | reftype = (refcode == TYPE_CODE_REF ? &TYPE_REFERENCE_TYPE (type) |
dda83cd7 | 482 | : &TYPE_RVALUE_REFERENCE_TYPE (type)); |
3b224330 AV |
483 | |
484 | *reftype = ntype; | |
c906108c | 485 | |
7ba81444 MS |
486 | /* FIXME! Assume the machine has only one representation for |
487 | references, and that it matches the (only) representation for | |
488 | pointers! */ | |
c906108c | 489 | |
b6cdbc9a | 490 | ntype->set_length (gdbarch_ptr_bit (type->arch ()) / TARGET_CHAR_BIT); |
67607e24 | 491 | ntype->set_code (refcode); |
c5aa993b | 492 | |
3b224330 | 493 | *reftype = ntype; |
c906108c | 494 | |
1e98b326 JB |
495 | /* Update the length of all the other variants of this type. */ |
496 | chain = TYPE_CHAIN (ntype); | |
497 | while (chain != ntype) | |
498 | { | |
df86565b | 499 | chain->set_length (ntype->length ()); |
1e98b326 JB |
500 | chain = TYPE_CHAIN (chain); |
501 | } | |
502 | ||
c906108c SS |
503 | return ntype; |
504 | } | |
505 | ||
7ba81444 MS |
506 | /* Same as above, but caller doesn't care about memory allocation |
507 | details. */ | |
c906108c SS |
508 | |
509 | struct type * | |
3b224330 AV |
510 | lookup_reference_type (struct type *type, enum type_code refcode) |
511 | { | |
512 | return make_reference_type (type, (struct type **) 0, refcode); | |
513 | } | |
514 | ||
515 | /* Lookup the lvalue reference type for the type TYPE. */ | |
516 | ||
517 | struct type * | |
518 | lookup_lvalue_reference_type (struct type *type) | |
519 | { | |
520 | return lookup_reference_type (type, TYPE_CODE_REF); | |
521 | } | |
522 | ||
523 | /* Lookup the rvalue reference type for the type TYPE. */ | |
524 | ||
525 | struct type * | |
526 | lookup_rvalue_reference_type (struct type *type) | |
c906108c | 527 | { |
3b224330 | 528 | return lookup_reference_type (type, TYPE_CODE_RVALUE_REF); |
c906108c SS |
529 | } |
530 | ||
7ba81444 MS |
531 | /* Lookup a function type that returns type TYPE. TYPEPTR, if |
532 | nonzero, points to a pointer to memory where the function type | |
533 | should be stored. If *TYPEPTR is zero, update it to point to the | |
0c8b41f1 | 534 | function type we return. We allocate new memory if needed. */ |
c906108c SS |
535 | |
536 | struct type * | |
0c8b41f1 | 537 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 538 | { |
52f0bd74 | 539 | struct type *ntype; /* New type */ |
c906108c SS |
540 | |
541 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
542 | { | |
9fa83a7a | 543 | ntype = type_allocator (type).new_type (); |
c906108c SS |
544 | if (typeptr) |
545 | *typeptr = ntype; | |
546 | } | |
7ba81444 | 547 | else /* We have storage, but need to reset it. */ |
c906108c SS |
548 | { |
549 | ntype = *typeptr; | |
2fdde8f8 | 550 | smash_type (ntype); |
c906108c SS |
551 | } |
552 | ||
8a50fdce | 553 | ntype->set_target_type (type); |
c906108c | 554 | |
b6cdbc9a | 555 | ntype->set_length (1); |
67607e24 | 556 | ntype->set_code (TYPE_CODE_FUNC); |
c5aa993b | 557 | |
b6cdc2c1 JK |
558 | INIT_FUNC_SPECIFIC (ntype); |
559 | ||
c906108c SS |
560 | return ntype; |
561 | } | |
562 | ||
c906108c SS |
563 | /* Given a type TYPE, return a type of functions that return that type. |
564 | May need to construct such a type if this is the first use. */ | |
565 | ||
566 | struct type * | |
fba45db2 | 567 | lookup_function_type (struct type *type) |
c906108c | 568 | { |
0c8b41f1 | 569 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
570 | } |
571 | ||
71918a86 | 572 | /* Given a type TYPE and argument types, return the appropriate |
a6fb9c08 TT |
573 | function type. If the final type in PARAM_TYPES is NULL, make a |
574 | varargs function. */ | |
71918a86 TT |
575 | |
576 | struct type * | |
577 | lookup_function_type_with_arguments (struct type *type, | |
578 | int nparams, | |
579 | struct type **param_types) | |
580 | { | |
581 | struct type *fn = make_function_type (type, (struct type **) 0); | |
582 | int i; | |
583 | ||
e314d629 | 584 | if (nparams > 0) |
a6fb9c08 | 585 | { |
e314d629 TT |
586 | if (param_types[nparams - 1] == NULL) |
587 | { | |
588 | --nparams; | |
1d6286ed | 589 | fn->set_has_varargs (true); |
e314d629 | 590 | } |
78134374 | 591 | else if (check_typedef (param_types[nparams - 1])->code () |
e314d629 TT |
592 | == TYPE_CODE_VOID) |
593 | { | |
594 | --nparams; | |
595 | /* Caller should have ensured this. */ | |
596 | gdb_assert (nparams == 0); | |
27e69b7a | 597 | fn->set_is_prototyped (true); |
e314d629 | 598 | } |
54990598 | 599 | else |
27e69b7a | 600 | fn->set_is_prototyped (true); |
a6fb9c08 TT |
601 | } |
602 | ||
2774f2da | 603 | fn->alloc_fields (nparams); |
71918a86 | 604 | for (i = 0; i < nparams; ++i) |
5d14b6e5 | 605 | fn->field (i).set_type (param_types[i]); |
71918a86 TT |
606 | |
607 | return fn; | |
608 | } | |
609 | ||
69896a2c PA |
610 | /* Identify address space identifier by name -- return a |
611 | type_instance_flags. */ | |
5212577a | 612 | |
314ad88d | 613 | type_instance_flags |
69896a2c PA |
614 | address_space_name_to_type_instance_flags (struct gdbarch *gdbarch, |
615 | const char *space_identifier) | |
47663de5 | 616 | { |
314ad88d | 617 | type_instance_flags type_flags; |
d8734c88 | 618 | |
7ba81444 | 619 | /* Check for known address space delimiters. */ |
47663de5 | 620 | if (!strcmp (space_identifier, "code")) |
876cecd0 | 621 | return TYPE_INSTANCE_FLAG_CODE_SPACE; |
47663de5 | 622 | else if (!strcmp (space_identifier, "data")) |
876cecd0 | 623 | return TYPE_INSTANCE_FLAG_DATA_SPACE; |
5f11f355 | 624 | else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
dda83cd7 | 625 | && gdbarch_address_class_name_to_type_flags (gdbarch, |
5f11f355 AC |
626 | space_identifier, |
627 | &type_flags)) | |
8b2dbe47 | 628 | return type_flags; |
47663de5 | 629 | else |
8a3fe4f8 | 630 | error (_("Unknown address space specifier: \"%s\""), space_identifier); |
47663de5 MS |
631 | } |
632 | ||
69896a2c PA |
633 | /* Identify address space identifier by type_instance_flags and return |
634 | the string version of the adress space name. */ | |
47663de5 | 635 | |
321432c0 | 636 | const char * |
69896a2c PA |
637 | address_space_type_instance_flags_to_name (struct gdbarch *gdbarch, |
638 | type_instance_flags space_flag) | |
47663de5 | 639 | { |
876cecd0 | 640 | if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE) |
47663de5 | 641 | return "code"; |
876cecd0 | 642 | else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE) |
47663de5 | 643 | return "data"; |
876cecd0 | 644 | else if ((space_flag & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) |
dda83cd7 | 645 | && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
5f11f355 | 646 | return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); |
47663de5 MS |
647 | else |
648 | return NULL; | |
649 | } | |
650 | ||
2fdde8f8 | 651 | /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
ad766c0a JB |
652 | |
653 | If STORAGE is non-NULL, create the new type instance there. | |
654 | STORAGE must be in the same obstack as TYPE. */ | |
47663de5 | 655 | |
b9362cc7 | 656 | static struct type * |
314ad88d | 657 | make_qualified_type (struct type *type, type_instance_flags new_flags, |
2fdde8f8 | 658 | struct type *storage) |
47663de5 MS |
659 | { |
660 | struct type *ntype; | |
661 | ||
662 | ntype = type; | |
5f61c20e JK |
663 | do |
664 | { | |
10242f36 | 665 | if (ntype->instance_flags () == new_flags) |
5f61c20e JK |
666 | return ntype; |
667 | ntype = TYPE_CHAIN (ntype); | |
668 | } | |
669 | while (ntype != type); | |
47663de5 | 670 | |
2fdde8f8 DJ |
671 | /* Create a new type instance. */ |
672 | if (storage == NULL) | |
673 | ntype = alloc_type_instance (type); | |
674 | else | |
675 | { | |
7ba81444 MS |
676 | /* If STORAGE was provided, it had better be in the same objfile |
677 | as TYPE. Otherwise, we can't link it into TYPE's cv chain: | |
678 | if one objfile is freed and the other kept, we'd have | |
679 | dangling pointers. */ | |
6ac37371 | 680 | gdb_assert (type->objfile_owner () == storage->objfile_owner ()); |
ad766c0a | 681 | |
2fdde8f8 DJ |
682 | ntype = storage; |
683 | TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); | |
684 | TYPE_CHAIN (ntype) = ntype; | |
685 | } | |
47663de5 MS |
686 | |
687 | /* Pointers or references to the original type are not relevant to | |
2fdde8f8 | 688 | the new type. */ |
47663de5 MS |
689 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
690 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
47663de5 | 691 | |
2fdde8f8 DJ |
692 | /* Chain the new qualified type to the old type. */ |
693 | TYPE_CHAIN (ntype) = TYPE_CHAIN (type); | |
694 | TYPE_CHAIN (type) = ntype; | |
695 | ||
696 | /* Now set the instance flags and return the new type. */ | |
314ad88d | 697 | ntype->set_instance_flags (new_flags); |
47663de5 | 698 | |
ab5d3da6 | 699 | /* Set length of new type to that of the original type. */ |
df86565b | 700 | ntype->set_length (type->length ()); |
ab5d3da6 | 701 | |
47663de5 MS |
702 | return ntype; |
703 | } | |
704 | ||
2fdde8f8 DJ |
705 | /* Make an address-space-delimited variant of a type -- a type that |
706 | is identical to the one supplied except that it has an address | |
707 | space attribute attached to it (such as "code" or "data"). | |
708 | ||
7ba81444 MS |
709 | The space attributes "code" and "data" are for Harvard |
710 | architectures. The address space attributes are for architectures | |
711 | which have alternately sized pointers or pointers with alternate | |
712 | representations. */ | |
2fdde8f8 DJ |
713 | |
714 | struct type * | |
314ad88d PA |
715 | make_type_with_address_space (struct type *type, |
716 | type_instance_flags space_flag) | |
2fdde8f8 | 717 | { |
314ad88d PA |
718 | type_instance_flags new_flags = ((type->instance_flags () |
719 | & ~(TYPE_INSTANCE_FLAG_CODE_SPACE | |
720 | | TYPE_INSTANCE_FLAG_DATA_SPACE | |
721 | | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)) | |
722 | | space_flag); | |
2fdde8f8 DJ |
723 | |
724 | return make_qualified_type (type, new_flags, NULL); | |
725 | } | |
c906108c SS |
726 | |
727 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
728 | one supplied except that it may have const or volatile attributes | |
729 | CNST is a flag for setting the const attribute | |
730 | VOLTL is a flag for setting the volatile attribute | |
731 | TYPE is the base type whose variant we are creating. | |
c906108c | 732 | |
ad766c0a JB |
733 | If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to |
734 | storage to hold the new qualified type; *TYPEPTR and TYPE must be | |
735 | in the same objfile. Otherwise, allocate fresh memory for the new | |
736 | type whereever TYPE lives. If TYPEPTR is non-zero, set it to the | |
737 | new type we construct. */ | |
5212577a | 738 | |
c906108c | 739 | struct type * |
7ba81444 MS |
740 | make_cv_type (int cnst, int voltl, |
741 | struct type *type, | |
742 | struct type **typeptr) | |
c906108c | 743 | { |
52f0bd74 | 744 | struct type *ntype; /* New type */ |
c906108c | 745 | |
314ad88d PA |
746 | type_instance_flags new_flags = (type->instance_flags () |
747 | & ~(TYPE_INSTANCE_FLAG_CONST | |
748 | | TYPE_INSTANCE_FLAG_VOLATILE)); | |
c906108c | 749 | |
c906108c | 750 | if (cnst) |
876cecd0 | 751 | new_flags |= TYPE_INSTANCE_FLAG_CONST; |
c906108c SS |
752 | |
753 | if (voltl) | |
876cecd0 | 754 | new_flags |= TYPE_INSTANCE_FLAG_VOLATILE; |
a02fd225 | 755 | |
2fdde8f8 | 756 | if (typeptr && *typeptr != NULL) |
a02fd225 | 757 | { |
ad766c0a JB |
758 | /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
759 | a C-V variant chain that threads across objfiles: if one | |
760 | objfile gets freed, then the other has a broken C-V chain. | |
761 | ||
762 | This code used to try to copy over the main type from TYPE to | |
763 | *TYPEPTR if they were in different objfiles, but that's | |
764 | wrong, too: TYPE may have a field list or member function | |
765 | lists, which refer to types of their own, etc. etc. The | |
766 | whole shebang would need to be copied over recursively; you | |
767 | can't have inter-objfile pointers. The only thing to do is | |
768 | to leave stub types as stub types, and look them up afresh by | |
769 | name each time you encounter them. */ | |
6ac37371 | 770 | gdb_assert ((*typeptr)->objfile_owner () == type->objfile_owner ()); |
2fdde8f8 DJ |
771 | } |
772 | ||
7ba81444 MS |
773 | ntype = make_qualified_type (type, new_flags, |
774 | typeptr ? *typeptr : NULL); | |
c906108c | 775 | |
2fdde8f8 DJ |
776 | if (typeptr != NULL) |
777 | *typeptr = ntype; | |
a02fd225 | 778 | |
2fdde8f8 | 779 | return ntype; |
a02fd225 | 780 | } |
c906108c | 781 | |
06d66ee9 TT |
782 | /* Make a 'restrict'-qualified version of TYPE. */ |
783 | ||
784 | struct type * | |
785 | make_restrict_type (struct type *type) | |
786 | { | |
787 | return make_qualified_type (type, | |
10242f36 | 788 | (type->instance_flags () |
06d66ee9 TT |
789 | | TYPE_INSTANCE_FLAG_RESTRICT), |
790 | NULL); | |
791 | } | |
792 | ||
f1660027 TT |
793 | /* Make a type without const, volatile, or restrict. */ |
794 | ||
795 | struct type * | |
796 | make_unqualified_type (struct type *type) | |
797 | { | |
798 | return make_qualified_type (type, | |
10242f36 | 799 | (type->instance_flags () |
f1660027 TT |
800 | & ~(TYPE_INSTANCE_FLAG_CONST |
801 | | TYPE_INSTANCE_FLAG_VOLATILE | |
802 | | TYPE_INSTANCE_FLAG_RESTRICT)), | |
803 | NULL); | |
804 | } | |
805 | ||
a2c2acaf MW |
806 | /* Make a '_Atomic'-qualified version of TYPE. */ |
807 | ||
808 | struct type * | |
809 | make_atomic_type (struct type *type) | |
810 | { | |
811 | return make_qualified_type (type, | |
10242f36 | 812 | (type->instance_flags () |
a2c2acaf MW |
813 | | TYPE_INSTANCE_FLAG_ATOMIC), |
814 | NULL); | |
815 | } | |
816 | ||
2fdde8f8 DJ |
817 | /* Replace the contents of ntype with the type *type. This changes the |
818 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
819 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 820 | |
cda6c68a JB |
821 | In order to build recursive types, it's inevitable that we'll need |
822 | to update types in place --- but this sort of indiscriminate | |
823 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
824 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
825 | clear if more steps are needed. */ | |
5212577a | 826 | |
dd6bda65 DJ |
827 | void |
828 | replace_type (struct type *ntype, struct type *type) | |
829 | { | |
ab5d3da6 | 830 | struct type *chain; |
dd6bda65 | 831 | |
ad766c0a JB |
832 | /* These two types had better be in the same objfile. Otherwise, |
833 | the assignment of one type's main type structure to the other | |
834 | will produce a type with references to objects (names; field | |
835 | lists; etc.) allocated on an objfile other than its own. */ | |
6ac37371 | 836 | gdb_assert (ntype->objfile_owner () == type->objfile_owner ()); |
ad766c0a | 837 | |
2fdde8f8 | 838 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 839 | |
7ba81444 MS |
840 | /* The type length is not a part of the main type. Update it for |
841 | each type on the variant chain. */ | |
ab5d3da6 | 842 | chain = ntype; |
5f61c20e JK |
843 | do |
844 | { | |
845 | /* Assert that this element of the chain has no address-class bits | |
846 | set in its flags. Such type variants might have type lengths | |
847 | which are supposed to be different from the non-address-class | |
848 | variants. This assertion shouldn't ever be triggered because | |
849 | symbol readers which do construct address-class variants don't | |
850 | call replace_type(). */ | |
851 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
852 | ||
df86565b | 853 | chain->set_length (type->length ()); |
5f61c20e JK |
854 | chain = TYPE_CHAIN (chain); |
855 | } | |
856 | while (ntype != chain); | |
ab5d3da6 | 857 | |
2fdde8f8 DJ |
858 | /* Assert that the two types have equivalent instance qualifiers. |
859 | This should be true for at least all of our debug readers. */ | |
10242f36 | 860 | gdb_assert (ntype->instance_flags () == type->instance_flags ()); |
dd6bda65 DJ |
861 | } |
862 | ||
c906108c SS |
863 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
864 | May need to construct such a type if this is the first use. | |
865 | The TYPE is the type of the member. The DOMAIN is the type | |
866 | of the aggregate that the member belongs to. */ | |
867 | ||
868 | struct type * | |
0d5de010 | 869 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 870 | { |
52f0bd74 | 871 | struct type *mtype; |
c906108c | 872 | |
9fa83a7a | 873 | mtype = type_allocator (type).new_type (); |
0d5de010 | 874 | smash_to_memberptr_type (mtype, domain, type); |
c16abbde | 875 | return mtype; |
c906108c SS |
876 | } |
877 | ||
0d5de010 DJ |
878 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
879 | ||
880 | struct type * | |
881 | lookup_methodptr_type (struct type *to_type) | |
882 | { | |
883 | struct type *mtype; | |
884 | ||
9fa83a7a | 885 | mtype = type_allocator (to_type).new_type (); |
0b92b5bb | 886 | smash_to_methodptr_type (mtype, to_type); |
0d5de010 DJ |
887 | return mtype; |
888 | } | |
889 | ||
0f59d5fc PA |
890 | /* See gdbtypes.h. */ |
891 | ||
892 | bool | |
893 | operator== (const dynamic_prop &l, const dynamic_prop &r) | |
894 | { | |
8c2e4e06 | 895 | if (l.kind () != r.kind ()) |
0f59d5fc PA |
896 | return false; |
897 | ||
8c2e4e06 | 898 | switch (l.kind ()) |
0f59d5fc PA |
899 | { |
900 | case PROP_UNDEFINED: | |
901 | return true; | |
902 | case PROP_CONST: | |
8c2e4e06 | 903 | return l.const_val () == r.const_val (); |
0f59d5fc PA |
904 | case PROP_ADDR_OFFSET: |
905 | case PROP_LOCEXPR: | |
906 | case PROP_LOCLIST: | |
8c2e4e06 | 907 | return l.baton () == r.baton (); |
ef83a141 | 908 | case PROP_VARIANT_PARTS: |
8c2e4e06 | 909 | return l.variant_parts () == r.variant_parts (); |
ef83a141 | 910 | case PROP_TYPE: |
8c2e4e06 | 911 | return l.original_type () == r.original_type (); |
0f59d5fc PA |
912 | } |
913 | ||
914 | gdb_assert_not_reached ("unhandled dynamic_prop kind"); | |
915 | } | |
916 | ||
917 | /* See gdbtypes.h. */ | |
918 | ||
919 | bool | |
920 | operator== (const range_bounds &l, const range_bounds &r) | |
921 | { | |
922 | #define FIELD_EQ(FIELD) (l.FIELD == r.FIELD) | |
923 | ||
924 | return (FIELD_EQ (low) | |
925 | && FIELD_EQ (high) | |
926 | && FIELD_EQ (flag_upper_bound_is_count) | |
4e962e74 TT |
927 | && FIELD_EQ (flag_bound_evaluated) |
928 | && FIELD_EQ (bias)); | |
0f59d5fc PA |
929 | |
930 | #undef FIELD_EQ | |
931 | } | |
932 | ||
e727c536 | 933 | /* See gdbtypes.h. */ |
c906108c SS |
934 | |
935 | struct type * | |
e727c536 | 936 | create_range_type (type_allocator &alloc, struct type *index_type, |
729efb13 | 937 | const struct dynamic_prop *low_bound, |
4e962e74 TT |
938 | const struct dynamic_prop *high_bound, |
939 | LONGEST bias) | |
c906108c | 940 | { |
b86352cf AB |
941 | /* The INDEX_TYPE should be a type capable of holding the upper and lower |
942 | bounds, as such a zero sized, or void type makes no sense. */ | |
78134374 | 943 | gdb_assert (index_type->code () != TYPE_CODE_VOID); |
df86565b | 944 | gdb_assert (index_type->length () > 0); |
b86352cf | 945 | |
e727c536 | 946 | struct type *result_type = alloc.new_type (); |
67607e24 | 947 | result_type->set_code (TYPE_CODE_RANGE); |
8a50fdce | 948 | result_type->set_target_type (index_type); |
e46d3488 | 949 | if (index_type->is_stub ()) |
8f53807e | 950 | result_type->set_target_is_stub (true); |
c906108c | 951 | else |
df86565b | 952 | result_type->set_length (check_typedef (index_type)->length ()); |
729efb13 | 953 | |
c4dfcb36 SM |
954 | range_bounds *bounds |
955 | = (struct range_bounds *) TYPE_ZALLOC (result_type, sizeof (range_bounds)); | |
956 | bounds->low = *low_bound; | |
957 | bounds->high = *high_bound; | |
958 | bounds->bias = bias; | |
8c2e4e06 | 959 | bounds->stride.set_const_val (0); |
c4dfcb36 SM |
960 | |
961 | result_type->set_bounds (bounds); | |
5bbd8269 | 962 | |
09584414 JB |
963 | if (index_type->code () == TYPE_CODE_FIXED_POINT) |
964 | result_type->set_is_unsigned (index_type->is_unsigned ()); | |
912b12ad TT |
965 | else if (index_type->is_unsigned ()) |
966 | { | |
967 | /* If the underlying type is unsigned, then the range | |
968 | necessarily is. */ | |
969 | result_type->set_is_unsigned (true); | |
970 | } | |
971 | /* Otherwise, the signed-ness of a range type can't simply be copied | |
6390859c TT |
972 | from the underlying type. Consider a case where the underlying |
973 | type is 'int', but the range type can hold 0..65535, and where | |
974 | the range is further specified to fit into 16 bits. In this | |
975 | case, if we copy the underlying type's sign, then reading some | |
976 | range values will cause an unwanted sign extension. So, we have | |
977 | some heuristics here instead. */ | |
9c0fb734 | 978 | else if (low_bound->is_constant () && low_bound->const_val () >= 0) |
912b12ad TT |
979 | { |
980 | result_type->set_is_unsigned (true); | |
981 | /* Ada allows the declaration of range types whose upper bound is | |
982 | less than the lower bound, so checking the lower bound is not | |
983 | enough. Make sure we do not mark a range type whose upper bound | |
984 | is negative as unsigned. */ | |
9c0fb734 | 985 | if (high_bound->is_constant () && high_bound->const_val () < 0) |
912b12ad TT |
986 | result_type->set_is_unsigned (false); |
987 | } | |
6390859c | 988 | |
db558e34 SM |
989 | result_type->set_endianity_is_not_default |
990 | (index_type->endianity_is_not_default ()); | |
a05cf17a | 991 | |
262452ec | 992 | return result_type; |
c906108c SS |
993 | } |
994 | ||
5bbd8269 AB |
995 | /* See gdbtypes.h. */ |
996 | ||
997 | struct type * | |
e727c536 | 998 | create_range_type_with_stride (type_allocator &alloc, |
5bbd8269 AB |
999 | struct type *index_type, |
1000 | const struct dynamic_prop *low_bound, | |
1001 | const struct dynamic_prop *high_bound, | |
1002 | LONGEST bias, | |
1003 | const struct dynamic_prop *stride, | |
1004 | bool byte_stride_p) | |
1005 | { | |
e727c536 TT |
1006 | struct type *result_type = create_range_type (alloc, index_type, low_bound, |
1007 | high_bound, bias); | |
5bbd8269 AB |
1008 | |
1009 | gdb_assert (stride != nullptr); | |
599088e3 SM |
1010 | result_type->bounds ()->stride = *stride; |
1011 | result_type->bounds ()->flag_is_byte_stride = byte_stride_p; | |
5bbd8269 AB |
1012 | |
1013 | return result_type; | |
1014 | } | |
1015 | ||
e727c536 | 1016 | /* See gdbtypes.h. */ |
729efb13 SA |
1017 | |
1018 | struct type * | |
e727c536 | 1019 | create_static_range_type (type_allocator &alloc, struct type *index_type, |
729efb13 SA |
1020 | LONGEST low_bound, LONGEST high_bound) |
1021 | { | |
1022 | struct dynamic_prop low, high; | |
1023 | ||
8c2e4e06 SM |
1024 | low.set_const_val (low_bound); |
1025 | high.set_const_val (high_bound); | |
729efb13 | 1026 | |
e727c536 TT |
1027 | struct type *result_type = create_range_type (alloc, index_type, |
1028 | &low, &high, 0); | |
729efb13 SA |
1029 | |
1030 | return result_type; | |
1031 | } | |
1032 | ||
80180f79 SA |
1033 | /* Predicate tests whether BOUNDS are static. Returns 1 if all bounds values |
1034 | are static, otherwise returns 0. */ | |
1035 | ||
5bbd8269 | 1036 | static bool |
80180f79 SA |
1037 | has_static_range (const struct range_bounds *bounds) |
1038 | { | |
5bbd8269 AB |
1039 | /* If the range doesn't have a defined stride then its stride field will |
1040 | be initialized to the constant 0. */ | |
9c0fb734 TT |
1041 | return (bounds->low.is_constant () |
1042 | && bounds->high.is_constant () | |
1043 | && bounds->stride.is_constant ()); | |
80180f79 SA |
1044 | } |
1045 | ||
5b56203a | 1046 | /* See gdbtypes.h. */ |
80180f79 | 1047 | |
6b09f134 | 1048 | std::optional<LONGEST> |
14c09924 | 1049 | get_discrete_low_bound (struct type *type) |
c906108c | 1050 | { |
f168693b | 1051 | type = check_typedef (type); |
78134374 | 1052 | switch (type->code ()) |
c906108c SS |
1053 | { |
1054 | case TYPE_CODE_RANGE: | |
14c09924 SM |
1055 | { |
1056 | /* This function only works for ranges with a constant low bound. */ | |
9c0fb734 | 1057 | if (!type->bounds ()->low.is_constant ()) |
14c09924 SM |
1058 | return {}; |
1059 | ||
1060 | LONGEST low = type->bounds ()->low.const_val (); | |
1061 | ||
27710edb | 1062 | if (type->target_type ()->code () == TYPE_CODE_ENUM) |
14c09924 | 1063 | { |
6b09f134 | 1064 | std::optional<LONGEST> low_pos |
27710edb | 1065 | = discrete_position (type->target_type (), low); |
14c09924 SM |
1066 | |
1067 | if (low_pos.has_value ()) | |
1068 | low = *low_pos; | |
1069 | } | |
1070 | ||
1071 | return low; | |
1072 | } | |
1073 | ||
1074 | case TYPE_CODE_ENUM: | |
1075 | { | |
1076 | if (type->num_fields () > 0) | |
1077 | { | |
1078 | /* The enums may not be sorted by value, so search all | |
1079 | entries. */ | |
970db518 | 1080 | LONGEST low = type->field (0).loc_enumval (); |
14c09924 SM |
1081 | |
1082 | for (int i = 0; i < type->num_fields (); i++) | |
1083 | { | |
970db518 SM |
1084 | if (type->field (i).loc_enumval () < low) |
1085 | low = type->field (i).loc_enumval (); | |
14c09924 SM |
1086 | } |
1087 | ||
14c09924 SM |
1088 | return low; |
1089 | } | |
1090 | else | |
1091 | return 0; | |
1092 | } | |
1093 | ||
1094 | case TYPE_CODE_BOOL: | |
1095 | return 0; | |
1096 | ||
1097 | case TYPE_CODE_INT: | |
df86565b | 1098 | if (type->length () > sizeof (LONGEST)) /* Too big */ |
6ad368b8 | 1099 | return {}; |
7c6f2712 | 1100 | |
14c09924 | 1101 | if (!type->is_unsigned ()) |
df86565b | 1102 | return -(1 << (type->length () * TARGET_CHAR_BIT - 1)); |
7c6f2712 | 1103 | |
d182e398 | 1104 | [[fallthrough]]; |
14c09924 SM |
1105 | case TYPE_CODE_CHAR: |
1106 | return 0; | |
6244c119 | 1107 | |
14c09924 | 1108 | default: |
6ad368b8 | 1109 | return {}; |
14c09924 SM |
1110 | } |
1111 | } | |
6244c119 | 1112 | |
5b56203a | 1113 | /* See gdbtypes.h. */ |
6244c119 | 1114 | |
6b09f134 | 1115 | std::optional<LONGEST> |
14c09924 SM |
1116 | get_discrete_high_bound (struct type *type) |
1117 | { | |
1118 | type = check_typedef (type); | |
1119 | switch (type->code ()) | |
1120 | { | |
1121 | case TYPE_CODE_RANGE: | |
1122 | { | |
1123 | /* This function only works for ranges with a constant high bound. */ | |
9c0fb734 | 1124 | if (!type->bounds ()->high.is_constant ()) |
14c09924 SM |
1125 | return {}; |
1126 | ||
1127 | LONGEST high = type->bounds ()->high.const_val (); | |
1128 | ||
27710edb | 1129 | if (type->target_type ()->code () == TYPE_CODE_ENUM) |
14c09924 | 1130 | { |
6b09f134 | 1131 | std::optional<LONGEST> high_pos |
27710edb | 1132 | = discrete_position (type->target_type (), high); |
14c09924 SM |
1133 | |
1134 | if (high_pos.has_value ()) | |
1135 | high = *high_pos; | |
1136 | } | |
1137 | ||
1138 | return high; | |
1139 | } | |
1f8d2881 | 1140 | |
c906108c | 1141 | case TYPE_CODE_ENUM: |
14c09924 SM |
1142 | { |
1143 | if (type->num_fields () > 0) | |
1144 | { | |
1145 | /* The enums may not be sorted by value, so search all | |
1146 | entries. */ | |
970db518 | 1147 | LONGEST high = type->field (0).loc_enumval (); |
14c09924 SM |
1148 | |
1149 | for (int i = 0; i < type->num_fields (); i++) | |
1150 | { | |
970db518 SM |
1151 | if (type->field (i).loc_enumval () > high) |
1152 | high = type->field (i).loc_enumval (); | |
14c09924 SM |
1153 | } |
1154 | ||
1155 | return high; | |
1156 | } | |
1157 | else | |
1158 | return -1; | |
1159 | } | |
1f8d2881 | 1160 | |
c906108c | 1161 | case TYPE_CODE_BOOL: |
14c09924 | 1162 | return 1; |
1f8d2881 | 1163 | |
c906108c | 1164 | case TYPE_CODE_INT: |
df86565b | 1165 | if (type->length () > sizeof (LONGEST)) /* Too big */ |
6ad368b8 | 1166 | return {}; |
1f8d2881 | 1167 | |
c6d940a9 | 1168 | if (!type->is_unsigned ()) |
c906108c | 1169 | { |
df86565b | 1170 | LONGEST low = -(1 << (type->length () * TARGET_CHAR_BIT - 1)); |
14c09924 | 1171 | return -low - 1; |
c906108c | 1172 | } |
14c09924 | 1173 | |
d182e398 | 1174 | [[fallthrough]]; |
c906108c | 1175 | case TYPE_CODE_CHAR: |
14c09924 SM |
1176 | { |
1177 | /* This round-about calculation is to avoid shifting by | |
df86565b SM |
1178 | type->length () * TARGET_CHAR_BIT, which will not work |
1179 | if type->length () == sizeof (LONGEST). */ | |
1180 | LONGEST high = 1 << (type->length () * TARGET_CHAR_BIT - 1); | |
14c09924 SM |
1181 | return (high - 1) | high; |
1182 | } | |
1f8d2881 | 1183 | |
c906108c | 1184 | default: |
6ad368b8 | 1185 | return {}; |
c906108c SS |
1186 | } |
1187 | } | |
1188 | ||
14c09924 SM |
1189 | /* See gdbtypes.h. */ |
1190 | ||
1191 | bool | |
1192 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) | |
1193 | { | |
6b09f134 | 1194 | std::optional<LONGEST> low = get_discrete_low_bound (type); |
6ad368b8 SM |
1195 | if (!low.has_value ()) |
1196 | return false; | |
14c09924 | 1197 | |
6b09f134 | 1198 | std::optional<LONGEST> high = get_discrete_high_bound (type); |
6ad368b8 | 1199 | if (!high.has_value ()) |
14c09924 SM |
1200 | return false; |
1201 | ||
1202 | *lowp = *low; | |
1203 | *highp = *high; | |
1204 | ||
1205 | return true; | |
1206 | } | |
1207 | ||
584903d3 | 1208 | /* See gdbtypes.h */ |
dbc98a8b | 1209 | |
584903d3 | 1210 | bool |
dbc98a8b KW |
1211 | get_array_bounds (struct type *type, LONGEST *low_bound, LONGEST *high_bound) |
1212 | { | |
3d967001 | 1213 | struct type *index = type->index_type (); |
dbc98a8b KW |
1214 | LONGEST low = 0; |
1215 | LONGEST high = 0; | |
dbc98a8b KW |
1216 | |
1217 | if (index == NULL) | |
584903d3 | 1218 | return false; |
dbc98a8b | 1219 | |
1f8d2881 | 1220 | if (!get_discrete_bounds (index, &low, &high)) |
584903d3 | 1221 | return false; |
dbc98a8b | 1222 | |
dbc98a8b KW |
1223 | if (low_bound) |
1224 | *low_bound = low; | |
1225 | ||
1226 | if (high_bound) | |
1227 | *high_bound = high; | |
1228 | ||
584903d3 | 1229 | return true; |
dbc98a8b KW |
1230 | } |
1231 | ||
aa715135 JG |
1232 | /* Assuming that TYPE is a discrete type and VAL is a valid integer |
1233 | representation of a value of this type, save the corresponding | |
1234 | position number in POS. | |
1235 | ||
1236 | Its differs from VAL only in the case of enumeration types. In | |
1237 | this case, the position number of the value of the first listed | |
1238 | enumeration literal is zero; the position number of the value of | |
1239 | each subsequent enumeration literal is one more than that of its | |
1240 | predecessor in the list. | |
1241 | ||
1242 | Return 1 if the operation was successful. Return zero otherwise, | |
1243 | in which case the value of POS is unmodified. | |
1244 | */ | |
1245 | ||
6b09f134 | 1246 | std::optional<LONGEST> |
6244c119 | 1247 | discrete_position (struct type *type, LONGEST val) |
aa715135 | 1248 | { |
0bc2354b | 1249 | if (type->code () == TYPE_CODE_RANGE) |
27710edb | 1250 | type = type->target_type (); |
0bc2354b | 1251 | |
78134374 | 1252 | if (type->code () == TYPE_CODE_ENUM) |
aa715135 JG |
1253 | { |
1254 | int i; | |
1255 | ||
1f704f76 | 1256 | for (i = 0; i < type->num_fields (); i += 1) |
dda83cd7 | 1257 | { |
970db518 | 1258 | if (val == type->field (i).loc_enumval ()) |
6244c119 | 1259 | return i; |
dda83cd7 | 1260 | } |
6244c119 | 1261 | |
aa715135 | 1262 | /* Invalid enumeration value. */ |
6244c119 | 1263 | return {}; |
aa715135 JG |
1264 | } |
1265 | else | |
6244c119 | 1266 | return val; |
aa715135 JG |
1267 | } |
1268 | ||
8dbb1375 HD |
1269 | /* If the array TYPE has static bounds calculate and update its |
1270 | size, then return true. Otherwise return false and leave TYPE | |
1271 | unchanged. */ | |
1272 | ||
1273 | static bool | |
1274 | update_static_array_size (struct type *type) | |
1275 | { | |
78134374 | 1276 | gdb_assert (type->code () == TYPE_CODE_ARRAY); |
8dbb1375 | 1277 | |
3d967001 | 1278 | struct type *range_type = type->index_type (); |
8dbb1375 | 1279 | |
24e99c6c | 1280 | if (type->dyn_prop (DYN_PROP_BYTE_STRIDE) == nullptr |
599088e3 | 1281 | && has_static_range (range_type->bounds ()) |
8dbb1375 HD |
1282 | && (!type_not_associated (type) |
1283 | && !type_not_allocated (type))) | |
1284 | { | |
1285 | LONGEST low_bound, high_bound; | |
1286 | int stride; | |
1287 | struct type *element_type; | |
1288 | ||
cc9d6997 | 1289 | stride = type->bit_stride (); |
8dbb1375 | 1290 | |
1f8d2881 | 1291 | if (!get_discrete_bounds (range_type, &low_bound, &high_bound)) |
8dbb1375 | 1292 | low_bound = high_bound = 0; |
1f8d2881 | 1293 | |
27710edb | 1294 | element_type = check_typedef (type->target_type ()); |
8dbb1375 HD |
1295 | /* Be careful when setting the array length. Ada arrays can be |
1296 | empty arrays with the high_bound being smaller than the low_bound. | |
1297 | In such cases, the array length should be zero. */ | |
1298 | if (high_bound < low_bound) | |
b6cdbc9a | 1299 | type->set_length (0); |
8dbb1375 HD |
1300 | else if (stride != 0) |
1301 | { | |
1302 | /* Ensure that the type length is always positive, even in the | |
1303 | case where (for example in Fortran) we have a negative | |
1304 | stride. It is possible to have a single element array with a | |
1305 | negative stride in Fortran (this doesn't mean anything | |
1306 | special, it's still just a single element array) so do | |
1307 | consider that case when touching this code. */ | |
1308 | LONGEST element_count = std::abs (high_bound - low_bound + 1); | |
b6cdbc9a | 1309 | type->set_length (((std::abs (stride) * element_count) + 7) / 8); |
8dbb1375 HD |
1310 | } |
1311 | else | |
df86565b | 1312 | type->set_length (element_type->length () |
b6cdbc9a | 1313 | * (high_bound - low_bound + 1)); |
8dbb1375 | 1314 | |
b72795a8 TT |
1315 | /* If this array's element is itself an array with a bit stride, |
1316 | then we want to update this array's bit stride to reflect the | |
1317 | size of the sub-array. Otherwise, we'll end up using the | |
1318 | wrong size when trying to find elements of the outer | |
1319 | array. */ | |
1320 | if (element_type->code () == TYPE_CODE_ARRAY | |
6c849804 | 1321 | && (stride != 0 || element_type->is_multi_dimensional ()) |
df86565b | 1322 | && element_type->length () != 0 |
3757d2d4 | 1323 | && element_type->field (0).bitsize () != 0 |
5d8254e1 | 1324 | && get_array_bounds (element_type, &low_bound, &high_bound) |
b72795a8 | 1325 | && high_bound >= low_bound) |
886176b8 SM |
1326 | type->field (0).set_bitsize |
1327 | ((high_bound - low_bound + 1) | |
3757d2d4 | 1328 | * element_type->field (0).bitsize ()); |
b72795a8 | 1329 | |
8dbb1375 HD |
1330 | return true; |
1331 | } | |
1332 | ||
1333 | return false; | |
1334 | } | |
1335 | ||
9e76b17a | 1336 | /* See gdbtypes.h. */ |
c906108c SS |
1337 | |
1338 | struct type * | |
9e76b17a | 1339 | create_array_type_with_stride (type_allocator &alloc, |
dc53a7ad JB |
1340 | struct type *element_type, |
1341 | struct type *range_type, | |
a405673c | 1342 | struct dynamic_prop *byte_stride_prop, |
dc53a7ad | 1343 | unsigned int bit_stride) |
c906108c | 1344 | { |
9c0fb734 | 1345 | if (byte_stride_prop != nullptr && byte_stride_prop->is_constant ()) |
a405673c JB |
1346 | { |
1347 | /* The byte stride is actually not dynamic. Pretend we were | |
1348 | called with bit_stride set instead of byte_stride_prop. | |
1349 | This will give us the same result type, while avoiding | |
1350 | the need to handle this as a special case. */ | |
8c2e4e06 | 1351 | bit_stride = byte_stride_prop->const_val () * 8; |
a405673c JB |
1352 | byte_stride_prop = NULL; |
1353 | } | |
1354 | ||
9e76b17a | 1355 | struct type *result_type = alloc.new_type (); |
e9bb382b | 1356 | |
67607e24 | 1357 | result_type->set_code (TYPE_CODE_ARRAY); |
8a50fdce | 1358 | result_type->set_target_type (element_type); |
5bbd8269 | 1359 | |
2774f2da | 1360 | result_type->alloc_fields (1); |
262abc0d | 1361 | result_type->set_index_type (range_type); |
8dbb1375 | 1362 | if (byte_stride_prop != NULL) |
5c54719c | 1363 | result_type->add_dyn_prop (DYN_PROP_BYTE_STRIDE, *byte_stride_prop); |
8dbb1375 | 1364 | else if (bit_stride > 0) |
886176b8 | 1365 | result_type->field (0).set_bitsize (bit_stride); |
80180f79 | 1366 | |
8dbb1375 | 1367 | if (!update_static_array_size (result_type)) |
80180f79 SA |
1368 | { |
1369 | /* This type is dynamic and its length needs to be computed | |
dda83cd7 SM |
1370 | on demand. In the meantime, avoid leaving the TYPE_LENGTH |
1371 | undefined by setting it to zero. Although we are not expected | |
1372 | to trust TYPE_LENGTH in this case, setting the size to zero | |
1373 | allows us to avoid allocating objects of random sizes in case | |
1374 | we accidently do. */ | |
b6cdbc9a | 1375 | result_type->set_length (0); |
80180f79 SA |
1376 | } |
1377 | ||
a9ff5f12 | 1378 | /* TYPE_TARGET_STUB will take care of zero length arrays. */ |
df86565b | 1379 | if (result_type->length () == 0) |
8f53807e | 1380 | result_type->set_target_is_stub (true); |
c906108c | 1381 | |
c16abbde | 1382 | return result_type; |
c906108c SS |
1383 | } |
1384 | ||
9e76b17a | 1385 | /* See gdbtypes.h. */ |
dc53a7ad JB |
1386 | |
1387 | struct type * | |
9e76b17a | 1388 | create_array_type (type_allocator &alloc, |
dc53a7ad JB |
1389 | struct type *element_type, |
1390 | struct type *range_type) | |
1391 | { | |
9e76b17a | 1392 | return create_array_type_with_stride (alloc, element_type, |
a405673c | 1393 | range_type, NULL, 0); |
dc53a7ad JB |
1394 | } |
1395 | ||
e3506a9f UW |
1396 | struct type * |
1397 | lookup_array_range_type (struct type *element_type, | |
63375b74 | 1398 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f | 1399 | { |
929b5ad4 JB |
1400 | struct type *index_type; |
1401 | struct type *range_type; | |
1402 | ||
e727c536 | 1403 | type_allocator alloc (element_type); |
426e5b66 | 1404 | index_type = builtin_type (element_type->arch ())->builtin_int; |
5b7d941b | 1405 | |
e727c536 | 1406 | range_type = create_static_range_type (alloc, index_type, |
929b5ad4 | 1407 | low_bound, high_bound); |
d8734c88 | 1408 | |
9e76b17a | 1409 | return create_array_type (alloc, element_type, range_type); |
e3506a9f UW |
1410 | } |
1411 | ||
9e76b17a | 1412 | /* See gdbtypes.h. */ |
c906108c SS |
1413 | |
1414 | struct type * | |
9e76b17a | 1415 | create_string_type (type_allocator &alloc, |
3b7538c0 | 1416 | struct type *string_char_type, |
7ba81444 | 1417 | struct type *range_type) |
c906108c | 1418 | { |
9e76b17a TT |
1419 | struct type *result_type = create_array_type (alloc, |
1420 | string_char_type, | |
1421 | range_type); | |
67607e24 | 1422 | result_type->set_code (TYPE_CODE_STRING); |
c16abbde | 1423 | return result_type; |
c906108c SS |
1424 | } |
1425 | ||
e3506a9f UW |
1426 | struct type * |
1427 | lookup_string_range_type (struct type *string_char_type, | |
63375b74 | 1428 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f UW |
1429 | { |
1430 | struct type *result_type; | |
d8734c88 | 1431 | |
e3506a9f UW |
1432 | result_type = lookup_array_range_type (string_char_type, |
1433 | low_bound, high_bound); | |
67607e24 | 1434 | result_type->set_code (TYPE_CODE_STRING); |
e3506a9f UW |
1435 | return result_type; |
1436 | } | |
1437 | ||
c906108c | 1438 | struct type * |
52664858 | 1439 | create_set_type (type_allocator &alloc, struct type *domain_type) |
c906108c | 1440 | { |
52664858 | 1441 | struct type *result_type = alloc.new_type (); |
e9bb382b | 1442 | |
67607e24 | 1443 | result_type->set_code (TYPE_CODE_SET); |
2774f2da | 1444 | result_type->alloc_fields (1); |
c906108c | 1445 | |
e46d3488 | 1446 | if (!domain_type->is_stub ()) |
c906108c | 1447 | { |
f9780d5b | 1448 | LONGEST low_bound, high_bound, bit_length; |
d8734c88 | 1449 | |
1f8d2881 | 1450 | if (!get_discrete_bounds (domain_type, &low_bound, &high_bound)) |
c906108c | 1451 | low_bound = high_bound = 0; |
1f8d2881 | 1452 | |
c906108c | 1453 | bit_length = high_bound - low_bound + 1; |
b6cdbc9a SM |
1454 | result_type->set_length ((bit_length + TARGET_CHAR_BIT - 1) |
1455 | / TARGET_CHAR_BIT); | |
f9780d5b | 1456 | if (low_bound >= 0) |
653223d3 | 1457 | result_type->set_is_unsigned (true); |
c906108c | 1458 | } |
5d14b6e5 | 1459 | result_type->field (0).set_type (domain_type); |
c906108c | 1460 | |
c16abbde | 1461 | return result_type; |
c906108c SS |
1462 | } |
1463 | ||
ea37ba09 DJ |
1464 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
1465 | and any array types nested inside it. */ | |
1466 | ||
1467 | void | |
1468 | make_vector_type (struct type *array_type) | |
1469 | { | |
1470 | struct type *inner_array, *elt_type; | |
ea37ba09 DJ |
1471 | |
1472 | /* Find the innermost array type, in case the array is | |
1473 | multi-dimensional. */ | |
1474 | inner_array = array_type; | |
27710edb SM |
1475 | while (inner_array->target_type ()->code () == TYPE_CODE_ARRAY) |
1476 | inner_array = inner_array->target_type (); | |
ea37ba09 | 1477 | |
27710edb | 1478 | elt_type = inner_array->target_type (); |
78134374 | 1479 | if (elt_type->code () == TYPE_CODE_INT) |
ea37ba09 | 1480 | { |
314ad88d PA |
1481 | type_instance_flags flags |
1482 | = elt_type->instance_flags () | TYPE_INSTANCE_FLAG_NOTTEXT; | |
ea37ba09 | 1483 | elt_type = make_qualified_type (elt_type, flags, NULL); |
8a50fdce | 1484 | inner_array->set_target_type (elt_type); |
ea37ba09 DJ |
1485 | } |
1486 | ||
2062087b | 1487 | array_type->set_is_vector (true); |
ea37ba09 DJ |
1488 | } |
1489 | ||
794ac428 | 1490 | struct type * |
ac3aafc7 EZ |
1491 | init_vector_type (struct type *elt_type, int n) |
1492 | { | |
1493 | struct type *array_type; | |
d8734c88 | 1494 | |
e3506a9f | 1495 | array_type = lookup_array_range_type (elt_type, 0, n - 1); |
ea37ba09 | 1496 | make_vector_type (array_type); |
ac3aafc7 EZ |
1497 | return array_type; |
1498 | } | |
1499 | ||
09e2d7c7 DE |
1500 | /* Internal routine called by TYPE_SELF_TYPE to return the type that TYPE |
1501 | belongs to. In c++ this is the class of "this", but TYPE_THIS_TYPE is too | |
1502 | confusing. "self" is a common enough replacement for "this". | |
1503 | TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or | |
1504 | TYPE_CODE_METHOD. */ | |
1505 | ||
1506 | struct type * | |
1507 | internal_type_self_type (struct type *type) | |
1508 | { | |
78134374 | 1509 | switch (type->code ()) |
09e2d7c7 DE |
1510 | { |
1511 | case TYPE_CODE_METHODPTR: | |
1512 | case TYPE_CODE_MEMBERPTR: | |
eaaf76ab DE |
1513 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) |
1514 | return NULL; | |
09e2d7c7 DE |
1515 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE); |
1516 | return TYPE_MAIN_TYPE (type)->type_specific.self_type; | |
1517 | case TYPE_CODE_METHOD: | |
eaaf76ab DE |
1518 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) |
1519 | return NULL; | |
09e2d7c7 DE |
1520 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC); |
1521 | return TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type; | |
1522 | default: | |
1523 | gdb_assert_not_reached ("bad type"); | |
1524 | } | |
1525 | } | |
1526 | ||
1527 | /* Set the type of the class that TYPE belongs to. | |
1528 | In c++ this is the class of "this". | |
1529 | TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or | |
1530 | TYPE_CODE_METHOD. */ | |
1531 | ||
1532 | void | |
1533 | set_type_self_type (struct type *type, struct type *self_type) | |
1534 | { | |
78134374 | 1535 | switch (type->code ()) |
09e2d7c7 DE |
1536 | { |
1537 | case TYPE_CODE_METHODPTR: | |
1538 | case TYPE_CODE_MEMBERPTR: | |
1539 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) | |
1540 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_SELF_TYPE; | |
1541 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE); | |
1542 | TYPE_MAIN_TYPE (type)->type_specific.self_type = self_type; | |
1543 | break; | |
1544 | case TYPE_CODE_METHOD: | |
1545 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) | |
1546 | INIT_FUNC_SPECIFIC (type); | |
1547 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC); | |
1548 | TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type = self_type; | |
1549 | break; | |
1550 | default: | |
1551 | gdb_assert_not_reached ("bad type"); | |
1552 | } | |
1553 | } | |
1554 | ||
1555 | /* Smash TYPE to be a type of pointers to members of SELF_TYPE with type | |
0d5de010 DJ |
1556 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a |
1557 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
1558 | TYPE doesn't include the offset (that's the value of the MEMBER | |
1559 | itself), but does include the structure type into which it points | |
1560 | (for some reason). | |
c906108c | 1561 | |
7ba81444 MS |
1562 | When "smashing" the type, we preserve the objfile that the old type |
1563 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1564 | allocated. */ |
1565 | ||
1566 | void | |
09e2d7c7 | 1567 | smash_to_memberptr_type (struct type *type, struct type *self_type, |
0d5de010 | 1568 | struct type *to_type) |
c906108c | 1569 | { |
2fdde8f8 | 1570 | smash_type (type); |
67607e24 | 1571 | type->set_code (TYPE_CODE_MEMBERPTR); |
8a50fdce | 1572 | type->set_target_type (to_type); |
09e2d7c7 | 1573 | set_type_self_type (type, self_type); |
0d5de010 DJ |
1574 | /* Assume that a data member pointer is the same size as a normal |
1575 | pointer. */ | |
b6cdbc9a | 1576 | type->set_length (gdbarch_ptr_bit (to_type->arch ()) / TARGET_CHAR_BIT); |
c906108c SS |
1577 | } |
1578 | ||
0b92b5bb TT |
1579 | /* Smash TYPE to be a type of pointer to methods type TO_TYPE. |
1580 | ||
1581 | When "smashing" the type, we preserve the objfile that the old type | |
1582 | pointed to, since we aren't changing where the type is actually | |
1583 | allocated. */ | |
1584 | ||
1585 | void | |
1586 | smash_to_methodptr_type (struct type *type, struct type *to_type) | |
1587 | { | |
1588 | smash_type (type); | |
67607e24 | 1589 | type->set_code (TYPE_CODE_METHODPTR); |
8a50fdce | 1590 | type->set_target_type (to_type); |
09e2d7c7 | 1591 | set_type_self_type (type, TYPE_SELF_TYPE (to_type)); |
b6cdbc9a | 1592 | type->set_length (cplus_method_ptr_size (to_type)); |
0b92b5bb TT |
1593 | } |
1594 | ||
09e2d7c7 | 1595 | /* Smash TYPE to be a type of method of SELF_TYPE with type TO_TYPE. |
c906108c SS |
1596 | METHOD just means `function that gets an extra "this" argument'. |
1597 | ||
7ba81444 MS |
1598 | When "smashing" the type, we preserve the objfile that the old type |
1599 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1600 | allocated. */ |
1601 | ||
1602 | void | |
09e2d7c7 | 1603 | smash_to_method_type (struct type *type, struct type *self_type, |
ad2f7632 DJ |
1604 | struct type *to_type, struct field *args, |
1605 | int nargs, int varargs) | |
c906108c | 1606 | { |
2fdde8f8 | 1607 | smash_type (type); |
67607e24 | 1608 | type->set_code (TYPE_CODE_METHOD); |
8a50fdce | 1609 | type->set_target_type (to_type); |
09e2d7c7 | 1610 | set_type_self_type (type, self_type); |
3cabb6b0 | 1611 | type->set_fields (args); |
5e33d5f4 | 1612 | type->set_num_fields (nargs); |
b6cdbc9a | 1613 | |
ad2f7632 | 1614 | if (varargs) |
1d6286ed | 1615 | type->set_has_varargs (true); |
b6cdbc9a SM |
1616 | |
1617 | /* In practice, this is never needed. */ | |
1618 | type->set_length (1); | |
c906108c SS |
1619 | } |
1620 | ||
a737d952 | 1621 | /* A wrapper of TYPE_NAME which calls error if the type is anonymous. |
d8228535 JK |
1622 | Since GCC PR debug/47510 DWARF provides associated information to detect the |
1623 | anonymous class linkage name from its typedef. | |
1624 | ||
1625 | Parameter TYPE should not yet have CHECK_TYPEDEF applied, this function will | |
1626 | apply it itself. */ | |
1627 | ||
1628 | const char * | |
a737d952 | 1629 | type_name_or_error (struct type *type) |
d8228535 JK |
1630 | { |
1631 | struct type *saved_type = type; | |
1632 | const char *name; | |
1633 | struct objfile *objfile; | |
1634 | ||
f168693b | 1635 | type = check_typedef (type); |
d8228535 | 1636 | |
7d93a1e0 | 1637 | name = type->name (); |
d8228535 JK |
1638 | if (name != NULL) |
1639 | return name; | |
1640 | ||
7d93a1e0 | 1641 | name = saved_type->name (); |
6ac37371 | 1642 | objfile = saved_type->objfile_owner (); |
d8228535 | 1643 | error (_("Invalid anonymous type %s [in module %s], GCC PR debug/47510 bug?"), |
4262abfb JK |
1644 | name ? name : "<anonymous>", |
1645 | objfile ? objfile_name (objfile) : "<arch>"); | |
d8228535 JK |
1646 | } |
1647 | ||
bde240e7 | 1648 | /* See gdbtypes.h. */ |
c906108c SS |
1649 | |
1650 | struct type * | |
e6c014f2 | 1651 | lookup_typename (const struct language_defn *language, |
b858499d | 1652 | const char *name, |
34eaf542 | 1653 | const struct block *block, int noerr) |
c906108c | 1654 | { |
52f0bd74 | 1655 | struct symbol *sym; |
c906108c | 1656 | |
9edce54e | 1657 | sym = lookup_symbol_in_language (name, block, SEARCH_TYPE_DOMAIN, |
d12307c1 | 1658 | language->la_language, NULL).symbol; |
9edce54e | 1659 | if (sym != nullptr) |
bde240e7 AB |
1660 | { |
1661 | struct type *type = sym->type (); | |
1662 | /* Ensure the length of TYPE is valid. */ | |
1663 | check_typedef (type); | |
1664 | return type; | |
1665 | } | |
c51fe631 | 1666 | |
c51fe631 DE |
1667 | if (noerr) |
1668 | return NULL; | |
1669 | error (_("No type named %s."), name); | |
c906108c SS |
1670 | } |
1671 | ||
1672 | struct type * | |
e6c014f2 | 1673 | lookup_unsigned_typename (const struct language_defn *language, |
b858499d | 1674 | const char *name) |
c906108c | 1675 | { |
8ba212f8 SM |
1676 | std::string uns; |
1677 | uns.reserve (strlen (name) + strlen ("unsigned ")); | |
1678 | uns = "unsigned "; | |
1679 | uns += name; | |
c906108c | 1680 | |
8ba212f8 | 1681 | return lookup_typename (language, uns.c_str (), NULL, 0); |
c906108c SS |
1682 | } |
1683 | ||
1684 | struct type * | |
b858499d | 1685 | lookup_signed_typename (const struct language_defn *language, const char *name) |
c906108c | 1686 | { |
55fc1623 TT |
1687 | /* In C and C++, "char" and "signed char" are distinct types. */ |
1688 | if (streq (name, "char")) | |
1689 | name = "signed char"; | |
b858499d | 1690 | return lookup_typename (language, name, NULL, 0); |
c906108c SS |
1691 | } |
1692 | ||
1693 | /* Lookup a structure type named "struct NAME", | |
1694 | visible in lexical block BLOCK. */ | |
1695 | ||
1696 | struct type * | |
270140bd | 1697 | lookup_struct (const char *name, const struct block *block) |
c906108c | 1698 | { |
52f0bd74 | 1699 | struct symbol *sym; |
c906108c | 1700 | |
ccf41c24 | 1701 | sym = lookup_symbol (name, block, SEARCH_STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1702 | |
1703 | if (sym == NULL) | |
1704 | { | |
8a3fe4f8 | 1705 | error (_("No struct type named %s."), name); |
c906108c | 1706 | } |
5f9c5a63 | 1707 | if (sym->type ()->code () != TYPE_CODE_STRUCT) |
c906108c | 1708 | { |
7ba81444 MS |
1709 | error (_("This context has class, union or enum %s, not a struct."), |
1710 | name); | |
c906108c | 1711 | } |
5f9c5a63 | 1712 | return (sym->type ()); |
c906108c SS |
1713 | } |
1714 | ||
1715 | /* Lookup a union type named "union NAME", | |
1716 | visible in lexical block BLOCK. */ | |
1717 | ||
1718 | struct type * | |
270140bd | 1719 | lookup_union (const char *name, const struct block *block) |
c906108c | 1720 | { |
52f0bd74 | 1721 | struct symbol *sym; |
c5aa993b | 1722 | struct type *t; |
c906108c | 1723 | |
ccf41c24 | 1724 | sym = lookup_symbol (name, block, SEARCH_STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1725 | |
1726 | if (sym == NULL) | |
8a3fe4f8 | 1727 | error (_("No union type named %s."), name); |
c906108c | 1728 | |
5f9c5a63 | 1729 | t = sym->type (); |
c906108c | 1730 | |
78134374 | 1731 | if (t->code () == TYPE_CODE_UNION) |
c16abbde | 1732 | return t; |
c906108c | 1733 | |
7ba81444 MS |
1734 | /* If we get here, it's not a union. */ |
1735 | error (_("This context has class, struct or enum %s, not a union."), | |
1736 | name); | |
c906108c SS |
1737 | } |
1738 | ||
c906108c SS |
1739 | /* Lookup an enum type named "enum NAME", |
1740 | visible in lexical block BLOCK. */ | |
1741 | ||
1742 | struct type * | |
270140bd | 1743 | lookup_enum (const char *name, const struct block *block) |
c906108c | 1744 | { |
52f0bd74 | 1745 | struct symbol *sym; |
c906108c | 1746 | |
ccf41c24 | 1747 | sym = lookup_symbol (name, block, SEARCH_STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1748 | if (sym == NULL) |
1749 | { | |
8a3fe4f8 | 1750 | error (_("No enum type named %s."), name); |
c906108c | 1751 | } |
5f9c5a63 | 1752 | if (sym->type ()->code () != TYPE_CODE_ENUM) |
c906108c | 1753 | { |
7ba81444 MS |
1754 | error (_("This context has class, struct or union %s, not an enum."), |
1755 | name); | |
c906108c | 1756 | } |
5f9c5a63 | 1757 | return (sym->type ()); |
c906108c SS |
1758 | } |
1759 | ||
1760 | /* Lookup a template type named "template NAME<TYPE>", | |
1761 | visible in lexical block BLOCK. */ | |
1762 | ||
1763 | struct type * | |
61f4b350 | 1764 | lookup_template_type (const char *name, struct type *type, |
270140bd | 1765 | const struct block *block) |
c906108c | 1766 | { |
8ba212f8 SM |
1767 | std::string nam; |
1768 | nam.reserve (strlen (name) + strlen (type->name ()) + strlen ("< >")); | |
1769 | nam = name; | |
1770 | nam += "<"; | |
1771 | nam += type->name (); | |
1772 | nam += " >"; /* FIXME, extra space still introduced in gcc? */ | |
c906108c | 1773 | |
ccf41c24 TT |
1774 | symbol *sym = lookup_symbol (nam.c_str (), block, |
1775 | SEARCH_STRUCT_DOMAIN, 0).symbol; | |
c906108c SS |
1776 | |
1777 | if (sym == NULL) | |
1778 | { | |
8a3fe4f8 | 1779 | error (_("No template type named %s."), name); |
c906108c | 1780 | } |
5f9c5a63 | 1781 | if (sym->type ()->code () != TYPE_CODE_STRUCT) |
c906108c | 1782 | { |
7ba81444 MS |
1783 | error (_("This context has class, union or enum %s, not a struct."), |
1784 | name); | |
c906108c | 1785 | } |
5f9c5a63 | 1786 | return (sym->type ()); |
c906108c SS |
1787 | } |
1788 | ||
ef0bd204 | 1789 | /* See gdbtypes.h. */ |
c906108c | 1790 | |
ef0bd204 JB |
1791 | struct_elt |
1792 | lookup_struct_elt (struct type *type, const char *name, int noerr) | |
c906108c SS |
1793 | { |
1794 | int i; | |
1795 | ||
1796 | for (;;) | |
1797 | { | |
f168693b | 1798 | type = check_typedef (type); |
78134374 SM |
1799 | if (type->code () != TYPE_CODE_PTR |
1800 | && type->code () != TYPE_CODE_REF) | |
c906108c | 1801 | break; |
27710edb | 1802 | type = type->target_type (); |
c906108c SS |
1803 | } |
1804 | ||
78134374 SM |
1805 | if (type->code () != TYPE_CODE_STRUCT |
1806 | && type->code () != TYPE_CODE_UNION) | |
c906108c | 1807 | { |
2f408ecb PA |
1808 | std::string type_name = type_to_string (type); |
1809 | error (_("Type %s is not a structure or union type."), | |
1810 | type_name.c_str ()); | |
c906108c SS |
1811 | } |
1812 | ||
1f704f76 | 1813 | for (i = type->num_fields () - 1; i >= TYPE_N_BASECLASSES (type); i--) |
c906108c | 1814 | { |
33d16dd9 | 1815 | const char *t_field_name = type->field (i).name (); |
c906108c | 1816 | |
db577aea | 1817 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c | 1818 | { |
b610c045 | 1819 | return {&type->field (i), type->field (i).loc_bitpos ()}; |
c906108c | 1820 | } |
c11f01db | 1821 | else if (!t_field_name || *t_field_name == '\0') |
f5a010c0 | 1822 | { |
ef0bd204 | 1823 | struct_elt elt |
940da03e | 1824 | = lookup_struct_elt (type->field (i).type (), name, 1); |
ef0bd204 JB |
1825 | if (elt.field != NULL) |
1826 | { | |
b610c045 | 1827 | elt.offset += type->field (i).loc_bitpos (); |
ef0bd204 JB |
1828 | return elt; |
1829 | } | |
f5a010c0 | 1830 | } |
c906108c SS |
1831 | } |
1832 | ||
1833 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1834 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1835 | { | |
ef0bd204 JB |
1836 | struct_elt elt = lookup_struct_elt (TYPE_BASECLASS (type, i), name, 1); |
1837 | if (elt.field != NULL) | |
1838 | return elt; | |
c906108c SS |
1839 | } |
1840 | ||
1841 | if (noerr) | |
ef0bd204 | 1842 | return {nullptr, 0}; |
c5aa993b | 1843 | |
2f408ecb PA |
1844 | std::string type_name = type_to_string (type); |
1845 | error (_("Type %s has no component named %s."), type_name.c_str (), name); | |
c906108c SS |
1846 | } |
1847 | ||
ef0bd204 JB |
1848 | /* See gdbtypes.h. */ |
1849 | ||
1850 | struct type * | |
1851 | lookup_struct_elt_type (struct type *type, const char *name, int noerr) | |
1852 | { | |
1853 | struct_elt elt = lookup_struct_elt (type, name, noerr); | |
1854 | if (elt.field != NULL) | |
b6cdac4b | 1855 | return elt.field->type (); |
ef0bd204 JB |
1856 | else |
1857 | return NULL; | |
1858 | } | |
1859 | ||
c3c1e645 | 1860 | /* Return the largest number representable by unsigned integer type TYPE. */ |
ed3ef339 | 1861 | |
c3c1e645 GB |
1862 | ULONGEST |
1863 | get_unsigned_type_max (struct type *type) | |
ed3ef339 DE |
1864 | { |
1865 | unsigned int n; | |
1866 | ||
f168693b | 1867 | type = check_typedef (type); |
c6d940a9 | 1868 | gdb_assert (type->code () == TYPE_CODE_INT && type->is_unsigned ()); |
df86565b | 1869 | gdb_assert (type->length () <= sizeof (ULONGEST)); |
ed3ef339 DE |
1870 | |
1871 | /* Written this way to avoid overflow. */ | |
df86565b | 1872 | n = type->length () * TARGET_CHAR_BIT; |
c3c1e645 | 1873 | return ((((ULONGEST) 1 << (n - 1)) - 1) << 1) | 1; |
ed3ef339 DE |
1874 | } |
1875 | ||
1876 | /* Store in *MIN, *MAX the smallest and largest numbers representable by | |
1877 | signed integer type TYPE. */ | |
1878 | ||
1879 | void | |
1880 | get_signed_type_minmax (struct type *type, LONGEST *min, LONGEST *max) | |
1881 | { | |
1882 | unsigned int n; | |
1883 | ||
f168693b | 1884 | type = check_typedef (type); |
c6d940a9 | 1885 | gdb_assert (type->code () == TYPE_CODE_INT && !type->is_unsigned ()); |
df86565b | 1886 | gdb_assert (type->length () <= sizeof (LONGEST)); |
ed3ef339 | 1887 | |
df86565b | 1888 | n = type->length () * TARGET_CHAR_BIT; |
ed3ef339 DE |
1889 | *min = -((ULONGEST) 1 << (n - 1)); |
1890 | *max = ((ULONGEST) 1 << (n - 1)) - 1; | |
1891 | } | |
1892 | ||
b5b591a8 GB |
1893 | /* Return the largest value representable by pointer type TYPE. */ |
1894 | ||
1895 | CORE_ADDR | |
1896 | get_pointer_type_max (struct type *type) | |
1897 | { | |
1898 | unsigned int n; | |
1899 | ||
1900 | type = check_typedef (type); | |
1901 | gdb_assert (type->code () == TYPE_CODE_PTR); | |
df86565b | 1902 | gdb_assert (type->length () <= sizeof (CORE_ADDR)); |
b5b591a8 | 1903 | |
df86565b | 1904 | n = type->length () * TARGET_CHAR_BIT; |
b5b591a8 GB |
1905 | return ((((CORE_ADDR) 1 << (n - 1)) - 1) << 1) | 1; |
1906 | } | |
1907 | ||
ae6ae975 DE |
1908 | /* Internal routine called by TYPE_VPTR_FIELDNO to return the value of |
1909 | cplus_stuff.vptr_fieldno. | |
1910 | ||
1911 | cplus_stuff is initialized to cplus_struct_default which does not | |
1912 | set vptr_fieldno to -1 for portability reasons (IWBN to use C99 | |
1913 | designated initializers). We cope with that here. */ | |
1914 | ||
1915 | int | |
1916 | internal_type_vptr_fieldno (struct type *type) | |
1917 | { | |
f168693b | 1918 | type = check_typedef (type); |
78134374 SM |
1919 | gdb_assert (type->code () == TYPE_CODE_STRUCT |
1920 | || type->code () == TYPE_CODE_UNION); | |
ae6ae975 DE |
1921 | if (!HAVE_CPLUS_STRUCT (type)) |
1922 | return -1; | |
1923 | return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno; | |
1924 | } | |
1925 | ||
1926 | /* Set the value of cplus_stuff.vptr_fieldno. */ | |
1927 | ||
1928 | void | |
1929 | set_type_vptr_fieldno (struct type *type, int fieldno) | |
1930 | { | |
f168693b | 1931 | type = check_typedef (type); |
78134374 SM |
1932 | gdb_assert (type->code () == TYPE_CODE_STRUCT |
1933 | || type->code () == TYPE_CODE_UNION); | |
ae6ae975 DE |
1934 | if (!HAVE_CPLUS_STRUCT (type)) |
1935 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
1936 | TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno = fieldno; | |
1937 | } | |
1938 | ||
1939 | /* Internal routine called by TYPE_VPTR_BASETYPE to return the value of | |
1940 | cplus_stuff.vptr_basetype. */ | |
1941 | ||
1942 | struct type * | |
1943 | internal_type_vptr_basetype (struct type *type) | |
1944 | { | |
f168693b | 1945 | type = check_typedef (type); |
78134374 SM |
1946 | gdb_assert (type->code () == TYPE_CODE_STRUCT |
1947 | || type->code () == TYPE_CODE_UNION); | |
ae6ae975 DE |
1948 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF); |
1949 | return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype; | |
1950 | } | |
1951 | ||
1952 | /* Set the value of cplus_stuff.vptr_basetype. */ | |
1953 | ||
1954 | void | |
1955 | set_type_vptr_basetype (struct type *type, struct type *basetype) | |
1956 | { | |
f168693b | 1957 | type = check_typedef (type); |
78134374 SM |
1958 | gdb_assert (type->code () == TYPE_CODE_STRUCT |
1959 | || type->code () == TYPE_CODE_UNION); | |
ae6ae975 DE |
1960 | if (!HAVE_CPLUS_STRUCT (type)) |
1961 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
1962 | TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype = basetype; | |
1963 | } | |
1964 | ||
81fe8080 DE |
1965 | /* Lookup the vptr basetype/fieldno values for TYPE. |
1966 | If found store vptr_basetype in *BASETYPEP if non-NULL, and return | |
1967 | vptr_fieldno. Also, if found and basetype is from the same objfile, | |
1968 | cache the results. | |
1969 | If not found, return -1 and ignore BASETYPEP. | |
1970 | Callers should be aware that in some cases (for example, | |
c906108c | 1971 | the type or one of its baseclasses is a stub type and we are |
d48cc9dd DJ |
1972 | debugging a .o file, or the compiler uses DWARF-2 and is not GCC), |
1973 | this function will not be able to find the | |
7ba81444 | 1974 | virtual function table pointer, and vptr_fieldno will remain -1 and |
81fe8080 | 1975 | vptr_basetype will remain NULL or incomplete. */ |
c906108c | 1976 | |
81fe8080 DE |
1977 | int |
1978 | get_vptr_fieldno (struct type *type, struct type **basetypep) | |
c906108c | 1979 | { |
f168693b | 1980 | type = check_typedef (type); |
c906108c SS |
1981 | |
1982 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1983 | { | |
1984 | int i; | |
1985 | ||
7ba81444 | 1986 | /* We must start at zero in case the first (and only) baseclass |
dda83cd7 | 1987 | is virtual (and hence we cannot share the table pointer). */ |
c906108c SS |
1988 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1989 | { | |
81fe8080 DE |
1990 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
1991 | int fieldno; | |
1992 | struct type *basetype; | |
1993 | ||
1994 | fieldno = get_vptr_fieldno (baseclass, &basetype); | |
1995 | if (fieldno >= 0) | |
c906108c | 1996 | { |
81fe8080 | 1997 | /* If the type comes from a different objfile we can't cache |
0963b4bd | 1998 | it, it may have a different lifetime. PR 2384 */ |
6ac37371 | 1999 | if (type->objfile_owner () == basetype->objfile_owner ()) |
81fe8080 | 2000 | { |
ae6ae975 DE |
2001 | set_type_vptr_fieldno (type, fieldno); |
2002 | set_type_vptr_basetype (type, basetype); | |
81fe8080 DE |
2003 | } |
2004 | if (basetypep) | |
2005 | *basetypep = basetype; | |
2006 | return fieldno; | |
c906108c SS |
2007 | } |
2008 | } | |
81fe8080 DE |
2009 | |
2010 | /* Not found. */ | |
2011 | return -1; | |
2012 | } | |
2013 | else | |
2014 | { | |
2015 | if (basetypep) | |
2016 | *basetypep = TYPE_VPTR_BASETYPE (type); | |
2017 | return TYPE_VPTR_FIELDNO (type); | |
c906108c SS |
2018 | } |
2019 | } | |
2020 | ||
44e1a9eb DJ |
2021 | static void |
2022 | stub_noname_complaint (void) | |
2023 | { | |
b98664d3 | 2024 | complaint (_("stub type has NULL name")); |
44e1a9eb DJ |
2025 | } |
2026 | ||
a405673c JB |
2027 | /* Return nonzero if TYPE has a DYN_PROP_BYTE_STRIDE dynamic property |
2028 | attached to it, and that property has a non-constant value. */ | |
2029 | ||
2030 | static int | |
2031 | array_type_has_dynamic_stride (struct type *type) | |
2032 | { | |
24e99c6c | 2033 | struct dynamic_prop *prop = type->dyn_prop (DYN_PROP_BYTE_STRIDE); |
a405673c | 2034 | |
9c0fb734 | 2035 | return prop != nullptr && prop->is_constant (); |
a405673c JB |
2036 | } |
2037 | ||
d98b7a16 | 2038 | /* Worker for is_dynamic_type. */ |
80180f79 | 2039 | |
86542ab5 TT |
2040 | static bool |
2041 | is_dynamic_type_internal (struct type *type, bool top_level) | |
80180f79 SA |
2042 | { |
2043 | type = check_typedef (type); | |
2044 | ||
f18fc7e5 BH |
2045 | /* We only want to recognize references and pointers at the outermost |
2046 | level. */ | |
2047 | if (top_level && type->is_pointer_or_reference ()) | |
27710edb | 2048 | type = check_typedef (type->target_type ()); |
e771e4be | 2049 | |
3cdcd0ce JB |
2050 | /* Types that have a dynamic TYPE_DATA_LOCATION are considered |
2051 | dynamic, even if the type itself is statically defined. | |
2052 | From a user's point of view, this may appear counter-intuitive; | |
2053 | but it makes sense in this context, because the point is to determine | |
2054 | whether any part of the type needs to be resolved before it can | |
2055 | be exploited. */ | |
2056 | if (TYPE_DATA_LOCATION (type) != NULL | |
2057 | && (TYPE_DATA_LOCATION_KIND (type) == PROP_LOCEXPR | |
2058 | || TYPE_DATA_LOCATION_KIND (type) == PROP_LOCLIST)) | |
86542ab5 | 2059 | return true; |
3cdcd0ce | 2060 | |
3f2f83dd | 2061 | if (TYPE_ASSOCIATED_PROP (type)) |
86542ab5 | 2062 | return true; |
3f2f83dd KB |
2063 | |
2064 | if (TYPE_ALLOCATED_PROP (type)) | |
86542ab5 | 2065 | return true; |
3f2f83dd | 2066 | |
24e99c6c | 2067 | struct dynamic_prop *prop = type->dyn_prop (DYN_PROP_VARIANT_PARTS); |
8c2e4e06 | 2068 | if (prop != nullptr && prop->kind () != PROP_TYPE) |
86542ab5 | 2069 | return true; |
ef83a141 | 2070 | |
f8e89861 | 2071 | if (TYPE_HAS_DYNAMIC_LENGTH (type)) |
86542ab5 | 2072 | return true; |
f8e89861 | 2073 | |
78134374 | 2074 | switch (type->code ()) |
80180f79 | 2075 | { |
6f8a3220 | 2076 | case TYPE_CODE_RANGE: |
ddb87a81 JB |
2077 | { |
2078 | /* A range type is obviously dynamic if it has at least one | |
2079 | dynamic bound. But also consider the range type to be | |
2080 | dynamic when its subtype is dynamic, even if the bounds | |
2081 | of the range type are static. It allows us to assume that | |
2082 | the subtype of a static range type is also static. */ | |
599088e3 | 2083 | return (!has_static_range (type->bounds ()) |
86542ab5 | 2084 | || is_dynamic_type_internal (type->target_type (), false)); |
ddb87a81 | 2085 | } |
6f8a3220 | 2086 | |
216a7e6b AB |
2087 | case TYPE_CODE_STRING: |
2088 | /* Strings are very much like an array of characters, and can be | |
2089 | treated as one here. */ | |
80180f79 SA |
2090 | case TYPE_CODE_ARRAY: |
2091 | { | |
1f704f76 | 2092 | gdb_assert (type->num_fields () == 1); |
6f8a3220 | 2093 | |
a405673c | 2094 | /* The array is dynamic if either the bounds are dynamic... */ |
86542ab5 TT |
2095 | if (is_dynamic_type_internal (type->index_type (), false)) |
2096 | return true; | |
a405673c | 2097 | /* ... or the elements it contains have a dynamic contents... */ |
86542ab5 TT |
2098 | if (is_dynamic_type_internal (type->target_type (), false)) |
2099 | return true; | |
a405673c JB |
2100 | /* ... or if it has a dynamic stride... */ |
2101 | if (array_type_has_dynamic_stride (type)) | |
86542ab5 TT |
2102 | return true; |
2103 | return false; | |
80180f79 | 2104 | } |
012370f6 TT |
2105 | |
2106 | case TYPE_CODE_STRUCT: | |
2107 | case TYPE_CODE_UNION: | |
2108 | { | |
2109 | int i; | |
2110 | ||
7d79de9a TT |
2111 | bool is_cplus = HAVE_CPLUS_STRUCT (type); |
2112 | ||
1f704f76 | 2113 | for (i = 0; i < type->num_fields (); ++i) |
7d79de9a TT |
2114 | { |
2115 | /* Static fields can be ignored here. */ | |
c819a338 | 2116 | if (type->field (i).is_static ()) |
7d79de9a TT |
2117 | continue; |
2118 | /* If the field has dynamic type, then so does TYPE. */ | |
86542ab5 TT |
2119 | if (is_dynamic_type_internal (type->field (i).type (), false)) |
2120 | return true; | |
7d79de9a TT |
2121 | /* If the field is at a fixed offset, then it is not |
2122 | dynamic. */ | |
2ad53ea1 | 2123 | if (type->field (i).loc_kind () != FIELD_LOC_KIND_DWARF_BLOCK) |
7d79de9a TT |
2124 | continue; |
2125 | /* Do not consider C++ virtual base types to be dynamic | |
2126 | due to the field's offset being dynamic; these are | |
2127 | handled via other means. */ | |
2128 | if (is_cplus && BASETYPE_VIA_VIRTUAL (type, i)) | |
2129 | continue; | |
86542ab5 | 2130 | return true; |
7d79de9a | 2131 | } |
012370f6 TT |
2132 | } |
2133 | break; | |
80180f79 | 2134 | } |
92e2a17f | 2135 | |
86542ab5 | 2136 | return false; |
80180f79 SA |
2137 | } |
2138 | ||
d98b7a16 TT |
2139 | /* See gdbtypes.h. */ |
2140 | ||
86542ab5 | 2141 | bool |
d98b7a16 TT |
2142 | is_dynamic_type (struct type *type) |
2143 | { | |
86542ab5 | 2144 | return is_dynamic_type_internal (type, true); |
d98b7a16 TT |
2145 | } |
2146 | ||
df25ebbd | 2147 | static struct type *resolve_dynamic_type_internal |
aeabe83d | 2148 | (struct type *type, struct property_addr_info *addr_stack, |
86542ab5 | 2149 | const frame_info_ptr &frame, bool top_level); |
d98b7a16 | 2150 | |
df25ebbd JB |
2151 | /* Given a dynamic range type (dyn_range_type) and a stack of |
2152 | struct property_addr_info elements, return a static version | |
b7874836 AB |
2153 | of that type. |
2154 | ||
2155 | When RESOLVE_P is true then the returned static range is created by | |
2156 | actually evaluating any dynamic properties within the range type, while | |
2157 | when RESOLVE_P is false the returned static range has all of the bounds | |
2158 | and stride information set to undefined. The RESOLVE_P set to false | |
2159 | case will be used when evaluating a dynamic array that is not | |
2160 | allocated, or not associated, i.e. the bounds information might not be | |
3fb842ce AB |
2161 | initialized yet. |
2162 | ||
2163 | RANK is the array rank for which we are resolving this range, and is a | |
2164 | zero based count. The rank should never be negative. | |
2165 | */ | |
d190df30 | 2166 | |
80180f79 | 2167 | static struct type * |
df25ebbd | 2168 | resolve_dynamic_range (struct type *dyn_range_type, |
b7874836 | 2169 | struct property_addr_info *addr_stack, |
aeabe83d | 2170 | const frame_info_ptr &frame, |
df7a7bdd | 2171 | int rank, bool resolve_p = true) |
80180f79 SA |
2172 | { |
2173 | CORE_ADDR value; | |
ddb87a81 | 2174 | struct type *static_range_type, *static_target_type; |
5bbd8269 | 2175 | struct dynamic_prop low_bound, high_bound, stride; |
80180f79 | 2176 | |
78134374 | 2177 | gdb_assert (dyn_range_type->code () == TYPE_CODE_RANGE); |
3fb842ce | 2178 | gdb_assert (rank >= 0); |
80180f79 | 2179 | |
599088e3 | 2180 | const struct dynamic_prop *prop = &dyn_range_type->bounds ()->low; |
a8b16509 TT |
2181 | if (resolve_p) |
2182 | { | |
2183 | if (dwarf2_evaluate_property (prop, frame, addr_stack, &value, | |
2184 | { (CORE_ADDR) rank })) | |
2185 | low_bound.set_const_val (value); | |
2186 | else if (prop->kind () == PROP_UNDEFINED) | |
2187 | low_bound.set_undefined (); | |
2188 | else | |
2189 | low_bound.set_optimized_out (); | |
2190 | } | |
80180f79 | 2191 | else |
8c2e4e06 | 2192 | low_bound.set_undefined (); |
80180f79 | 2193 | |
599088e3 | 2194 | prop = &dyn_range_type->bounds ()->high; |
a8b16509 | 2195 | if (resolve_p) |
80180f79 | 2196 | { |
a8b16509 TT |
2197 | if (dwarf2_evaluate_property (prop, frame, addr_stack, &value, |
2198 | { (CORE_ADDR) rank })) | |
2199 | { | |
2200 | high_bound.set_const_val (value); | |
c451ebe5 | 2201 | |
a8b16509 TT |
2202 | if (dyn_range_type->bounds ()->flag_upper_bound_is_count) |
2203 | high_bound.set_const_val | |
2204 | (low_bound.const_val () + high_bound.const_val () - 1); | |
2205 | } | |
2206 | else if (prop->kind () == PROP_UNDEFINED) | |
2207 | high_bound.set_undefined (); | |
2208 | else | |
2209 | high_bound.set_optimized_out (); | |
80180f79 SA |
2210 | } |
2211 | else | |
8c2e4e06 | 2212 | high_bound.set_undefined (); |
80180f79 | 2213 | |
599088e3 SM |
2214 | bool byte_stride_p = dyn_range_type->bounds ()->flag_is_byte_stride; |
2215 | prop = &dyn_range_type->bounds ()->stride; | |
aeabe83d | 2216 | if (resolve_p && dwarf2_evaluate_property (prop, frame, addr_stack, &value, |
df7a7bdd | 2217 | { (CORE_ADDR) rank })) |
5bbd8269 | 2218 | { |
8c2e4e06 | 2219 | stride.set_const_val (value); |
5bbd8269 AB |
2220 | |
2221 | /* If we have a bit stride that is not an exact number of bytes then | |
2222 | I really don't think this is going to work with current GDB, the | |
2223 | array indexing code in GDB seems to be pretty heavily tied to byte | |
2224 | offsets right now. Assuming 8 bits in a byte. */ | |
8ee511af | 2225 | struct gdbarch *gdbarch = dyn_range_type->arch (); |
5bbd8269 AB |
2226 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); |
2227 | if (!byte_stride_p && (value % (unit_size * 8)) != 0) | |
2228 | error (_("bit strides that are not a multiple of the byte size " | |
2229 | "are currently not supported")); | |
2230 | } | |
2231 | else | |
2232 | { | |
8c2e4e06 | 2233 | stride.set_undefined (); |
5bbd8269 AB |
2234 | byte_stride_p = true; |
2235 | } | |
2236 | ||
ddb87a81 | 2237 | static_target_type |
27710edb | 2238 | = resolve_dynamic_type_internal (dyn_range_type->target_type (), |
86542ab5 | 2239 | addr_stack, frame, false); |
599088e3 | 2240 | LONGEST bias = dyn_range_type->bounds ()->bias; |
e727c536 | 2241 | type_allocator alloc (dyn_range_type); |
5bbd8269 | 2242 | static_range_type = create_range_type_with_stride |
e727c536 | 2243 | (alloc, static_target_type, |
5bbd8269 | 2244 | &low_bound, &high_bound, bias, &stride, byte_stride_p); |
4bfcb286 | 2245 | static_range_type->set_name (dyn_range_type->name ()); |
599088e3 | 2246 | static_range_type->bounds ()->flag_bound_evaluated = 1; |
6f8a3220 JB |
2247 | return static_range_type; |
2248 | } | |
2249 | ||
df7a7bdd | 2250 | /* Helper function for resolve_dynamic_array_or_string. This function |
2251 | resolves the properties for a single array at RANK within a nested array | |
3fb842ce | 2252 | of arrays structure. The RANK value is greater than or equal to 0, and |
df7a7bdd | 2253 | starts at it's maximum value and goes down by 1 for each recursive call |
2254 | to this function. So, for a 3-dimensional array, the first call to this | |
3fb842ce AB |
2255 | function has RANK == 2, then we call ourselves recursively with RANK == |
2256 | 1, than again with RANK == 0, and at that point we should return. | |
df7a7bdd | 2257 | |
2258 | TYPE is updated as the dynamic properties are resolved, and so, should | |
2259 | be a copy of the dynamic type, rather than the original dynamic type | |
2260 | itself. | |
2261 | ||
2262 | ADDR_STACK is a stack of struct property_addr_info to be used if needed | |
2263 | during the dynamic resolution. | |
b7874836 AB |
2264 | |
2265 | When RESOLVE_P is true then the dynamic properties of TYPE are | |
2266 | evaluated, otherwise the dynamic properties of TYPE are not evaluated, | |
2267 | instead we assume the array is not allocated/associated yet. */ | |
6f8a3220 JB |
2268 | |
2269 | static struct type * | |
df7a7bdd | 2270 | resolve_dynamic_array_or_string_1 (struct type *type, |
2271 | struct property_addr_info *addr_stack, | |
aeabe83d | 2272 | const frame_info_ptr &frame, |
df7a7bdd | 2273 | int rank, bool resolve_p) |
6f8a3220 JB |
2274 | { |
2275 | CORE_ADDR value; | |
2276 | struct type *elt_type; | |
2277 | struct type *range_type; | |
2278 | struct type *ary_dim; | |
3f2f83dd | 2279 | struct dynamic_prop *prop; |
a405673c | 2280 | unsigned int bit_stride = 0; |
6f8a3220 | 2281 | |
216a7e6b AB |
2282 | /* For dynamic type resolution strings can be treated like arrays of |
2283 | characters. */ | |
78134374 SM |
2284 | gdb_assert (type->code () == TYPE_CODE_ARRAY |
2285 | || type->code () == TYPE_CODE_STRING); | |
6f8a3220 | 2286 | |
3fb842ce AB |
2287 | /* As the rank is a zero based count we expect this to never be |
2288 | negative. */ | |
2289 | gdb_assert (rank >= 0); | |
3f2f83dd | 2290 | |
b7874836 AB |
2291 | /* Resolve the allocated and associated properties before doing anything |
2292 | else. If an array is not allocated or not associated then (at least | |
2293 | for Fortran) there is no guarantee that the data to define the upper | |
2294 | bound, lower bound, or stride will be correct. If RESOLVE_P is | |
2295 | already false at this point then this is not the first dimension of | |
2296 | the array and a more outer dimension has already marked this array as | |
2297 | not allocated/associated, as such we just ignore this property. This | |
2298 | is fine as GDB only checks the allocated/associated on the outer most | |
2299 | dimension of the array. */ | |
3f2f83dd | 2300 | prop = TYPE_ALLOCATED_PROP (type); |
b7874836 | 2301 | if (prop != NULL && resolve_p |
aeabe83d | 2302 | && dwarf2_evaluate_property (prop, frame, addr_stack, &value)) |
b7874836 AB |
2303 | { |
2304 | prop->set_const_val (value); | |
2305 | if (value == 0) | |
2306 | resolve_p = false; | |
2307 | } | |
8c2e4e06 | 2308 | |
3f2f83dd | 2309 | prop = TYPE_ASSOCIATED_PROP (type); |
b7874836 | 2310 | if (prop != NULL && resolve_p |
aeabe83d | 2311 | && dwarf2_evaluate_property (prop, frame, addr_stack, &value)) |
b7874836 AB |
2312 | { |
2313 | prop->set_const_val (value); | |
2314 | if (value == 0) | |
2315 | resolve_p = false; | |
2316 | } | |
3f2f83dd | 2317 | |
b7874836 | 2318 | range_type = check_typedef (type->index_type ()); |
df7a7bdd | 2319 | range_type |
aeabe83d | 2320 | = resolve_dynamic_range (range_type, addr_stack, frame, rank, resolve_p); |
80180f79 | 2321 | |
27710edb | 2322 | ary_dim = check_typedef (type->target_type ()); |
78134374 | 2323 | if (ary_dim != NULL && ary_dim->code () == TYPE_CODE_ARRAY) |
df7a7bdd | 2324 | { |
2325 | ary_dim = copy_type (ary_dim); | |
2326 | elt_type = resolve_dynamic_array_or_string_1 (ary_dim, addr_stack, | |
aeabe83d TT |
2327 | frame, rank - 1, |
2328 | resolve_p); | |
df7a7bdd | 2329 | } |
80180f79 | 2330 | else |
27710edb | 2331 | elt_type = type->target_type (); |
80180f79 | 2332 | |
24e99c6c | 2333 | prop = type->dyn_prop (DYN_PROP_BYTE_STRIDE); |
b7874836 | 2334 | if (prop != NULL && resolve_p) |
a405673c | 2335 | { |
aeabe83d | 2336 | if (dwarf2_evaluate_property (prop, frame, addr_stack, &value)) |
a405673c | 2337 | { |
7aa91313 | 2338 | type->remove_dyn_prop (DYN_PROP_BYTE_STRIDE); |
a405673c JB |
2339 | bit_stride = (unsigned int) (value * 8); |
2340 | } | |
2341 | else | |
2342 | { | |
2343 | /* Could be a bug in our code, but it could also happen | |
2344 | if the DWARF info is not correct. Issue a warning, | |
2345 | and assume no byte/bit stride (leave bit_stride = 0). */ | |
2346 | warning (_("cannot determine array stride for type %s"), | |
7d93a1e0 | 2347 | type->name () ? type->name () : "<no name>"); |
a405673c JB |
2348 | } |
2349 | } | |
2350 | else | |
3757d2d4 | 2351 | bit_stride = type->field (0).bitsize (); |
a405673c | 2352 | |
9e76b17a TT |
2353 | type_allocator alloc (type, type_allocator::SMASH); |
2354 | return create_array_type_with_stride (alloc, elt_type, range_type, NULL, | |
dda83cd7 | 2355 | bit_stride); |
80180f79 SA |
2356 | } |
2357 | ||
df7a7bdd | 2358 | /* Resolve an array or string type with dynamic properties, return a new |
2359 | type with the dynamic properties resolved to actual values. The | |
2360 | ADDR_STACK represents the location of the object being resolved. */ | |
2361 | ||
2362 | static struct type * | |
2363 | resolve_dynamic_array_or_string (struct type *type, | |
aeabe83d TT |
2364 | struct property_addr_info *addr_stack, |
2365 | const frame_info_ptr &frame) | |
df7a7bdd | 2366 | { |
2367 | CORE_ADDR value; | |
2368 | int rank = 0; | |
2369 | ||
2370 | /* For dynamic type resolution strings can be treated like arrays of | |
2371 | characters. */ | |
2372 | gdb_assert (type->code () == TYPE_CODE_ARRAY | |
2373 | || type->code () == TYPE_CODE_STRING); | |
2374 | ||
2375 | type = copy_type (type); | |
2376 | ||
2377 | /* Resolve the rank property to get rank value. */ | |
2378 | struct dynamic_prop *prop = TYPE_RANK_PROP (type); | |
aeabe83d | 2379 | if (dwarf2_evaluate_property (prop, frame, addr_stack, &value)) |
df7a7bdd | 2380 | { |
2381 | prop->set_const_val (value); | |
2382 | rank = value; | |
2383 | ||
2384 | if (rank == 0) | |
2385 | { | |
5f59e7e0 | 2386 | /* Rank is zero, if a variable is passed as an argument to a |
2387 | function. In this case the resolved type should not be an | |
2388 | array, but should instead be that of an array element. */ | |
2389 | struct type *dynamic_array_type = type; | |
27710edb | 2390 | type = copy_type (dynamic_array_type->target_type ()); |
5f59e7e0 | 2391 | struct dynamic_prop_list *prop_list |
2392 | = TYPE_MAIN_TYPE (dynamic_array_type)->dyn_prop_list; | |
2393 | if (prop_list != nullptr) | |
2394 | { | |
2395 | struct obstack *obstack | |
2396 | = &type->objfile_owner ()->objfile_obstack; | |
2397 | TYPE_MAIN_TYPE (type)->dyn_prop_list | |
2398 | = copy_dynamic_prop_list (obstack, prop_list); | |
2399 | } | |
2400 | return type; | |
df7a7bdd | 2401 | } |
2402 | else if (type->code () == TYPE_CODE_STRING && rank != 1) | |
2403 | { | |
2404 | /* What would this even mean? A string with a dynamic rank | |
2405 | greater than 1. */ | |
2406 | error (_("unable to handle string with dynamic rank greater than 1")); | |
2407 | } | |
2408 | else if (rank > 1) | |
2409 | { | |
2410 | /* Arrays with dynamic rank are initially just an array type | |
2411 | with a target type that is the array element. | |
2412 | ||
2413 | However, now we know the rank of the array we need to build | |
2414 | the array of arrays structure that GDB expects, that is we | |
2415 | need an array type that has a target which is an array type, | |
2416 | and so on, until eventually, we have the element type at the | |
2417 | end of the chain. Create all the additional array types here | |
2418 | by copying the top level array type. */ | |
27710edb | 2419 | struct type *element_type = type->target_type (); |
df7a7bdd | 2420 | struct type *rank_type = type; |
2421 | for (int i = 1; i < rank; i++) | |
2422 | { | |
8a50fdce | 2423 | rank_type->set_target_type (copy_type (rank_type)); |
27710edb | 2424 | rank_type = rank_type->target_type (); |
df7a7bdd | 2425 | } |
8a50fdce | 2426 | rank_type->set_target_type (element_type); |
df7a7bdd | 2427 | } |
2428 | } | |
2429 | else | |
2430 | { | |
2431 | rank = 1; | |
2432 | ||
27710edb | 2433 | for (struct type *tmp_type = check_typedef (type->target_type ()); |
df7a7bdd | 2434 | tmp_type->code () == TYPE_CODE_ARRAY; |
27710edb | 2435 | tmp_type = check_typedef (tmp_type->target_type ())) |
df7a7bdd | 2436 | ++rank; |
2437 | } | |
2438 | ||
3fb842ce AB |
2439 | /* The rank that we calculated above is actually a count of the number of |
2440 | ranks. However, when we resolve the type of each individual array | |
2441 | rank we should actually use a rank "offset", e.g. an array with a rank | |
2442 | count of 1 (calculated above) will use the rank offset 0 in order to | |
2443 | resolve the details of the first array dimension. As a result, we | |
2444 | reduce the rank by 1 here. */ | |
2445 | --rank; | |
2446 | ||
aeabe83d TT |
2447 | return resolve_dynamic_array_or_string_1 (type, addr_stack, frame, rank, |
2448 | true); | |
df7a7bdd | 2449 | } |
2450 | ||
012370f6 | 2451 | /* Resolve dynamic bounds of members of the union TYPE to static |
df25ebbd JB |
2452 | bounds. ADDR_STACK is a stack of struct property_addr_info |
2453 | to be used if needed during the dynamic resolution. */ | |
012370f6 TT |
2454 | |
2455 | static struct type * | |
df25ebbd | 2456 | resolve_dynamic_union (struct type *type, |
aeabe83d TT |
2457 | struct property_addr_info *addr_stack, |
2458 | const frame_info_ptr &frame) | |
012370f6 TT |
2459 | { |
2460 | struct type *resolved_type; | |
2461 | int i; | |
2462 | unsigned int max_len = 0; | |
2463 | ||
78134374 | 2464 | gdb_assert (type->code () == TYPE_CODE_UNION); |
012370f6 TT |
2465 | |
2466 | resolved_type = copy_type (type); | |
2774f2da | 2467 | resolved_type->copy_fields (type); |
1f704f76 | 2468 | for (i = 0; i < resolved_type->num_fields (); ++i) |
012370f6 TT |
2469 | { |
2470 | struct type *t; | |
2471 | ||
c819a338 | 2472 | if (type->field (i).is_static ()) |
012370f6 TT |
2473 | continue; |
2474 | ||
940da03e | 2475 | t = resolve_dynamic_type_internal (resolved_type->field (i).type (), |
86542ab5 | 2476 | addr_stack, frame, false); |
5d14b6e5 | 2477 | resolved_type->field (i).set_type (t); |
2f33032a KS |
2478 | |
2479 | struct type *real_type = check_typedef (t); | |
df86565b SM |
2480 | if (real_type->length () > max_len) |
2481 | max_len = real_type->length (); | |
012370f6 TT |
2482 | } |
2483 | ||
b6cdbc9a | 2484 | resolved_type->set_length (max_len); |
012370f6 TT |
2485 | return resolved_type; |
2486 | } | |
2487 | ||
ef83a141 TT |
2488 | /* See gdbtypes.h. */ |
2489 | ||
2490 | bool | |
2491 | variant::matches (ULONGEST value, bool is_unsigned) const | |
2492 | { | |
2493 | for (const discriminant_range &range : discriminants) | |
2494 | if (range.contains (value, is_unsigned)) | |
2495 | return true; | |
2496 | return false; | |
2497 | } | |
2498 | ||
2499 | static void | |
2500 | compute_variant_fields_inner (struct type *type, | |
2501 | struct property_addr_info *addr_stack, | |
2502 | const variant_part &part, | |
2503 | std::vector<bool> &flags); | |
2504 | ||
2505 | /* A helper function to determine which variant fields will be active. | |
2506 | This handles both the variant's direct fields, and any variant | |
2507 | parts embedded in this variant. TYPE is the type we're examining. | |
2508 | ADDR_STACK holds information about the concrete object. VARIANT is | |
2509 | the current variant to be handled. FLAGS is where the results are | |
2510 | stored -- this function sets the Nth element in FLAGS if the | |
2511 | corresponding field is enabled. ENABLED is whether this variant is | |
2512 | enabled or not. */ | |
2513 | ||
2514 | static void | |
2515 | compute_variant_fields_recurse (struct type *type, | |
2516 | struct property_addr_info *addr_stack, | |
2517 | const variant &variant, | |
2518 | std::vector<bool> &flags, | |
2519 | bool enabled) | |
2520 | { | |
2521 | for (int field = variant.first_field; field < variant.last_field; ++field) | |
2522 | flags[field] = enabled; | |
2523 | ||
2524 | for (const variant_part &new_part : variant.parts) | |
2525 | { | |
2526 | if (enabled) | |
2527 | compute_variant_fields_inner (type, addr_stack, new_part, flags); | |
2528 | else | |
2529 | { | |
2530 | for (const auto &sub_variant : new_part.variants) | |
2531 | compute_variant_fields_recurse (type, addr_stack, sub_variant, | |
2532 | flags, enabled); | |
2533 | } | |
2534 | } | |
2535 | } | |
2536 | ||
2537 | /* A helper function to determine which variant fields will be active. | |
2538 | This evaluates the discriminant, decides which variant (if any) is | |
2539 | active, and then updates FLAGS to reflect which fields should be | |
2540 | available. TYPE is the type we're examining. ADDR_STACK holds | |
2541 | information about the concrete object. VARIANT is the current | |
2542 | variant to be handled. FLAGS is where the results are stored -- | |
2543 | this function sets the Nth element in FLAGS if the corresponding | |
2544 | field is enabled. */ | |
2545 | ||
2546 | static void | |
2547 | compute_variant_fields_inner (struct type *type, | |
2548 | struct property_addr_info *addr_stack, | |
2549 | const variant_part &part, | |
2550 | std::vector<bool> &flags) | |
2551 | { | |
2552 | /* Evaluate the discriminant. */ | |
6b09f134 | 2553 | std::optional<ULONGEST> discr_value; |
ef83a141 TT |
2554 | if (part.discriminant_index != -1) |
2555 | { | |
2556 | int idx = part.discriminant_index; | |
2557 | ||
2ad53ea1 | 2558 | if (type->field (idx).loc_kind () != FIELD_LOC_KIND_BITPOS) |
ef83a141 TT |
2559 | error (_("Cannot determine struct field location" |
2560 | " (invalid location kind)")); | |
2561 | ||
b249d2c2 TT |
2562 | if (addr_stack->valaddr.data () != NULL) |
2563 | discr_value = unpack_field_as_long (type, addr_stack->valaddr.data (), | |
2564 | idx); | |
ef83a141 TT |
2565 | else |
2566 | { | |
2567 | CORE_ADDR addr = (addr_stack->addr | |
b610c045 | 2568 | + (type->field (idx).loc_bitpos () |
ef83a141 TT |
2569 | / TARGET_CHAR_BIT)); |
2570 | ||
3757d2d4 | 2571 | LONGEST bitsize = type->field (idx).bitsize (); |
ef83a141 TT |
2572 | LONGEST size = bitsize / 8; |
2573 | if (size == 0) | |
df86565b | 2574 | size = type->field (idx).type ()->length (); |
ef83a141 TT |
2575 | |
2576 | gdb_byte bits[sizeof (ULONGEST)]; | |
2577 | read_memory (addr, bits, size); | |
2578 | ||
b610c045 | 2579 | LONGEST bitpos = (type->field (idx).loc_bitpos () |
ef83a141 TT |
2580 | % TARGET_CHAR_BIT); |
2581 | ||
940da03e | 2582 | discr_value = unpack_bits_as_long (type->field (idx).type (), |
ef83a141 TT |
2583 | bits, bitpos, bitsize); |
2584 | } | |
2585 | } | |
2586 | ||
2587 | /* Go through each variant and see which applies. */ | |
2588 | const variant *default_variant = nullptr; | |
2589 | const variant *applied_variant = nullptr; | |
2590 | for (const auto &variant : part.variants) | |
2591 | { | |
2592 | if (variant.is_default ()) | |
2593 | default_variant = &variant; | |
2594 | else if (discr_value.has_value () | |
2595 | && variant.matches (*discr_value, part.is_unsigned)) | |
2596 | { | |
2597 | applied_variant = &variant; | |
2598 | break; | |
2599 | } | |
2600 | } | |
2601 | if (applied_variant == nullptr) | |
2602 | applied_variant = default_variant; | |
2603 | ||
2604 | for (const auto &variant : part.variants) | |
2605 | compute_variant_fields_recurse (type, addr_stack, variant, | |
2606 | flags, applied_variant == &variant); | |
2607 | } | |
2608 | ||
2609 | /* Determine which variant fields are available in TYPE. The enabled | |
2610 | fields are stored in RESOLVED_TYPE. ADDR_STACK holds information | |
2611 | about the concrete object. PARTS describes the top-level variant | |
2612 | parts for this type. */ | |
2613 | ||
2614 | static void | |
2615 | compute_variant_fields (struct type *type, | |
2616 | struct type *resolved_type, | |
2617 | struct property_addr_info *addr_stack, | |
2618 | const gdb::array_view<variant_part> &parts) | |
2619 | { | |
2620 | /* Assume all fields are included by default. */ | |
1f704f76 | 2621 | std::vector<bool> flags (resolved_type->num_fields (), true); |
ef83a141 TT |
2622 | |
2623 | /* Now disable fields based on the variants that control them. */ | |
2624 | for (const auto &part : parts) | |
2625 | compute_variant_fields_inner (type, addr_stack, part, flags); | |
2626 | ||
2774f2da TV |
2627 | unsigned int nfields = std::count (flags.begin (), flags.end (), true); |
2628 | /* No need to zero-initialize the newly allocated fields, they'll be | |
2629 | initialized by the copy in the loop below. */ | |
2630 | resolved_type->alloc_fields (nfields, false); | |
3cabb6b0 | 2631 | |
ef83a141 | 2632 | int out = 0; |
1f704f76 | 2633 | for (int i = 0; i < type->num_fields (); ++i) |
ef83a141 TT |
2634 | { |
2635 | if (!flags[i]) | |
2636 | continue; | |
2637 | ||
ceacbf6e | 2638 | resolved_type->field (out) = type->field (i); |
ef83a141 TT |
2639 | ++out; |
2640 | } | |
2641 | } | |
2642 | ||
012370f6 | 2643 | /* Resolve dynamic bounds of members of the struct TYPE to static |
df25ebbd JB |
2644 | bounds. ADDR_STACK is a stack of struct property_addr_info to |
2645 | be used if needed during the dynamic resolution. */ | |
012370f6 TT |
2646 | |
2647 | static struct type * | |
df25ebbd | 2648 | resolve_dynamic_struct (struct type *type, |
aeabe83d TT |
2649 | struct property_addr_info *addr_stack, |
2650 | const frame_info_ptr &frame) | |
012370f6 TT |
2651 | { |
2652 | struct type *resolved_type; | |
2653 | int i; | |
6908c509 | 2654 | unsigned resolved_type_bit_length = 0; |
012370f6 | 2655 | |
78134374 | 2656 | gdb_assert (type->code () == TYPE_CODE_STRUCT); |
012370f6 TT |
2657 | |
2658 | resolved_type = copy_type (type); | |
ef83a141 | 2659 | |
24e99c6c | 2660 | dynamic_prop *variant_prop = resolved_type->dyn_prop (DYN_PROP_VARIANT_PARTS); |
8c2e4e06 | 2661 | if (variant_prop != nullptr && variant_prop->kind () == PROP_VARIANT_PARTS) |
ef83a141 TT |
2662 | { |
2663 | compute_variant_fields (type, resolved_type, addr_stack, | |
8c2e4e06 | 2664 | *variant_prop->variant_parts ()); |
ef83a141 TT |
2665 | /* We want to leave the property attached, so that the Rust code |
2666 | can tell whether the type was originally an enum. */ | |
8c2e4e06 | 2667 | variant_prop->set_original_type (type); |
ef83a141 TT |
2668 | } |
2669 | else | |
2670 | { | |
2774f2da | 2671 | resolved_type->copy_fields (type); |
ef83a141 TT |
2672 | } |
2673 | ||
1f704f76 | 2674 | for (i = 0; i < resolved_type->num_fields (); ++i) |
012370f6 | 2675 | { |
6908c509 | 2676 | unsigned new_bit_length; |
df25ebbd | 2677 | struct property_addr_info pinfo; |
012370f6 | 2678 | |
c819a338 | 2679 | if (resolved_type->field (i).is_static ()) |
012370f6 TT |
2680 | continue; |
2681 | ||
2ad53ea1 | 2682 | if (resolved_type->field (i).loc_kind () == FIELD_LOC_KIND_DWARF_BLOCK) |
7d79de9a TT |
2683 | { |
2684 | struct dwarf2_property_baton baton; | |
2685 | baton.property_type | |
940da03e | 2686 | = lookup_pointer_type (resolved_type->field (i).type ()); |
51e36a3a | 2687 | baton.locexpr = *resolved_type->field (i).loc_dwarf_block (); |
7d79de9a TT |
2688 | |
2689 | struct dynamic_prop prop; | |
8c2e4e06 | 2690 | prop.set_locexpr (&baton); |
7d79de9a TT |
2691 | |
2692 | CORE_ADDR addr; | |
aeabe83d | 2693 | if (dwarf2_evaluate_property (&prop, frame, addr_stack, &addr, |
1fb43cf7 | 2694 | {addr_stack->addr})) |
cd3f655c SM |
2695 | resolved_type->field (i).set_loc_bitpos |
2696 | (TARGET_CHAR_BIT * (addr - addr_stack->addr)); | |
7d79de9a TT |
2697 | } |
2698 | ||
6908c509 JB |
2699 | /* As we know this field is not a static field, the field's |
2700 | field_loc_kind should be FIELD_LOC_KIND_BITPOS. Verify | |
2701 | this is the case, but only trigger a simple error rather | |
2702 | than an internal error if that fails. While failing | |
2703 | that verification indicates a bug in our code, the error | |
2704 | is not severe enough to suggest to the user he stops | |
2705 | his debugging session because of it. */ | |
2ad53ea1 | 2706 | if (resolved_type->field (i).loc_kind () != FIELD_LOC_KIND_BITPOS) |
6908c509 JB |
2707 | error (_("Cannot determine struct field location" |
2708 | " (invalid location kind)")); | |
df25ebbd | 2709 | |
940da03e | 2710 | pinfo.type = check_typedef (resolved_type->field (i).type ()); |
b610c045 | 2711 | size_t offset = resolved_type->field (i).loc_bitpos () / TARGET_CHAR_BIT; |
c3345124 | 2712 | pinfo.valaddr = addr_stack->valaddr; |
05fb05a9 TT |
2713 | if (!pinfo.valaddr.empty ()) |
2714 | pinfo.valaddr = pinfo.valaddr.slice (offset); | |
2715 | pinfo.addr = addr_stack->addr + offset; | |
df25ebbd JB |
2716 | pinfo.next = addr_stack; |
2717 | ||
5d14b6e5 | 2718 | resolved_type->field (i).set_type |
940da03e | 2719 | (resolve_dynamic_type_internal (resolved_type->field (i).type (), |
86542ab5 | 2720 | &pinfo, frame, false)); |
2ad53ea1 | 2721 | gdb_assert (resolved_type->field (i).loc_kind () |
df25ebbd JB |
2722 | == FIELD_LOC_KIND_BITPOS); |
2723 | ||
b610c045 | 2724 | new_bit_length = resolved_type->field (i).loc_bitpos (); |
3757d2d4 SM |
2725 | if (resolved_type->field (i).bitsize () != 0) |
2726 | new_bit_length += resolved_type->field (i).bitsize (); | |
6908c509 | 2727 | else |
2f33032a KS |
2728 | { |
2729 | struct type *real_type | |
2730 | = check_typedef (resolved_type->field (i).type ()); | |
2731 | ||
df86565b | 2732 | new_bit_length += (real_type->length () * TARGET_CHAR_BIT); |
2f33032a | 2733 | } |
6908c509 JB |
2734 | |
2735 | /* Normally, we would use the position and size of the last field | |
2736 | to determine the size of the enclosing structure. But GCC seems | |
2737 | to be encoding the position of some fields incorrectly when | |
2738 | the struct contains a dynamic field that is not placed last. | |
2739 | So we compute the struct size based on the field that has | |
2740 | the highest position + size - probably the best we can do. */ | |
2741 | if (new_bit_length > resolved_type_bit_length) | |
2742 | resolved_type_bit_length = new_bit_length; | |
012370f6 TT |
2743 | } |
2744 | ||
9920b434 BH |
2745 | /* The length of a type won't change for fortran, but it does for C and Ada. |
2746 | For fortran the size of dynamic fields might change over time but not the | |
2747 | type length of the structure. If we adapt it, we run into problems | |
2748 | when calculating the element offset for arrays of structs. */ | |
2749 | if (current_language->la_language != language_fortran) | |
b6cdbc9a SM |
2750 | resolved_type->set_length ((resolved_type_bit_length + TARGET_CHAR_BIT - 1) |
2751 | / TARGET_CHAR_BIT); | |
6908c509 | 2752 | |
9e195661 PMR |
2753 | /* The Ada language uses this field as a cache for static fixed types: reset |
2754 | it as RESOLVED_TYPE must have its own static fixed type. */ | |
8a50fdce | 2755 | resolved_type->set_target_type (nullptr); |
9e195661 | 2756 | |
012370f6 TT |
2757 | return resolved_type; |
2758 | } | |
2759 | ||
d98b7a16 | 2760 | /* Worker for resolved_dynamic_type. */ |
80180f79 | 2761 | |
d98b7a16 | 2762 | static struct type * |
df25ebbd | 2763 | resolve_dynamic_type_internal (struct type *type, |
ee715b5a | 2764 | struct property_addr_info *addr_stack, |
aeabe83d | 2765 | const frame_info_ptr &frame, |
86542ab5 | 2766 | bool top_level) |
80180f79 SA |
2767 | { |
2768 | struct type *real_type = check_typedef (type); | |
f8e89861 | 2769 | struct type *resolved_type = nullptr; |
d9823cbb | 2770 | struct dynamic_prop *prop; |
3cdcd0ce | 2771 | CORE_ADDR value; |
80180f79 | 2772 | |
ee715b5a | 2773 | if (!is_dynamic_type_internal (real_type, top_level)) |
80180f79 SA |
2774 | return type; |
2775 | ||
6b09f134 | 2776 | std::optional<CORE_ADDR> type_length; |
f8e89861 TT |
2777 | prop = TYPE_DYNAMIC_LENGTH (type); |
2778 | if (prop != NULL | |
aeabe83d | 2779 | && dwarf2_evaluate_property (prop, frame, addr_stack, &value)) |
f8e89861 TT |
2780 | type_length = value; |
2781 | ||
78134374 | 2782 | if (type->code () == TYPE_CODE_TYPEDEF) |
6f8a3220 | 2783 | { |
cac9b138 | 2784 | resolved_type = copy_type (type); |
8a50fdce | 2785 | resolved_type->set_target_type |
27710edb | 2786 | (resolve_dynamic_type_internal (type->target_type (), addr_stack, |
aeabe83d | 2787 | frame, top_level)); |
5537b577 | 2788 | } |
8a50fdce | 2789 | else |
5537b577 JK |
2790 | { |
2791 | /* Before trying to resolve TYPE, make sure it is not a stub. */ | |
2792 | type = real_type; | |
012370f6 | 2793 | |
78134374 | 2794 | switch (type->code ()) |
5537b577 | 2795 | { |
e771e4be | 2796 | case TYPE_CODE_REF: |
f18fc7e5 BH |
2797 | case TYPE_CODE_PTR: |
2798 | case TYPE_CODE_RVALUE_REF: | |
e771e4be PMR |
2799 | { |
2800 | struct property_addr_info pinfo; | |
2801 | ||
27710edb | 2802 | pinfo.type = check_typedef (type->target_type ()); |
b249d2c2 TT |
2803 | pinfo.valaddr = {}; |
2804 | if (addr_stack->valaddr.data () != NULL) | |
2805 | pinfo.addr = extract_typed_address (addr_stack->valaddr.data (), | |
2806 | type); | |
c3345124 JB |
2807 | else |
2808 | pinfo.addr = read_memory_typed_address (addr_stack->addr, type); | |
e771e4be PMR |
2809 | pinfo.next = addr_stack; |
2810 | ||
3a3f1548 TT |
2811 | /* Special case a NULL pointer here -- we don't want to |
2812 | dereference it. */ | |
2813 | if (pinfo.addr != 0) | |
2814 | { | |
2815 | resolved_type = copy_type (type); | |
2816 | resolved_type->set_target_type | |
2817 | (resolve_dynamic_type_internal (type->target_type (), | |
2818 | &pinfo, frame, true)); | |
2819 | } | |
e771e4be PMR |
2820 | break; |
2821 | } | |
2822 | ||
216a7e6b AB |
2823 | case TYPE_CODE_STRING: |
2824 | /* Strings are very much like an array of characters, and can be | |
2825 | treated as one here. */ | |
5537b577 | 2826 | case TYPE_CODE_ARRAY: |
aeabe83d TT |
2827 | resolved_type = resolve_dynamic_array_or_string (type, addr_stack, |
2828 | frame); | |
5537b577 JK |
2829 | break; |
2830 | ||
2831 | case TYPE_CODE_RANGE: | |
3fb842ce AB |
2832 | /* Pass 0 for the rank value here, which indicates this is a |
2833 | range for the first rank of an array. The assumption is that | |
2834 | this rank value is not actually required for the resolution of | |
2835 | the dynamic range, otherwise, we'd be resolving this range | |
2836 | within the context of a dynamic array. */ | |
aeabe83d | 2837 | resolved_type = resolve_dynamic_range (type, addr_stack, frame, 0); |
5537b577 JK |
2838 | break; |
2839 | ||
2840 | case TYPE_CODE_UNION: | |
aeabe83d | 2841 | resolved_type = resolve_dynamic_union (type, addr_stack, frame); |
5537b577 JK |
2842 | break; |
2843 | ||
2844 | case TYPE_CODE_STRUCT: | |
aeabe83d | 2845 | resolved_type = resolve_dynamic_struct (type, addr_stack, frame); |
5537b577 JK |
2846 | break; |
2847 | } | |
6f8a3220 | 2848 | } |
80180f79 | 2849 | |
f8e89861 TT |
2850 | if (resolved_type == nullptr) |
2851 | return type; | |
2852 | ||
2853 | if (type_length.has_value ()) | |
2854 | { | |
b6cdbc9a | 2855 | resolved_type->set_length (*type_length); |
7aa91313 | 2856 | resolved_type->remove_dyn_prop (DYN_PROP_BYTE_SIZE); |
f8e89861 TT |
2857 | } |
2858 | ||
3cdcd0ce JB |
2859 | /* Resolve data_location attribute. */ |
2860 | prop = TYPE_DATA_LOCATION (resolved_type); | |
63e43d3a | 2861 | if (prop != NULL |
aeabe83d | 2862 | && dwarf2_evaluate_property (prop, frame, addr_stack, &value)) |
a5c641b5 AB |
2863 | { |
2864 | /* Start of Fortran hack. See comment in f-lang.h for what is going | |
2865 | on here.*/ | |
2866 | if (current_language->la_language == language_fortran | |
2867 | && resolved_type->code () == TYPE_CODE_ARRAY) | |
2868 | value = fortran_adjust_dynamic_array_base_address_hack (resolved_type, | |
2869 | value); | |
2870 | /* End of Fortran hack. */ | |
2871 | prop->set_const_val (value); | |
2872 | } | |
3cdcd0ce | 2873 | |
80180f79 SA |
2874 | return resolved_type; |
2875 | } | |
2876 | ||
d98b7a16 TT |
2877 | /* See gdbtypes.h */ |
2878 | ||
2879 | struct type * | |
b249d2c2 TT |
2880 | resolve_dynamic_type (struct type *type, |
2881 | gdb::array_view<const gdb_byte> valaddr, | |
aeabe83d TT |
2882 | CORE_ADDR addr, |
2883 | const frame_info_ptr *in_frame) | |
d98b7a16 | 2884 | { |
c3345124 JB |
2885 | struct property_addr_info pinfo |
2886 | = {check_typedef (type), valaddr, addr, NULL}; | |
df25ebbd | 2887 | |
aeabe83d TT |
2888 | frame_info_ptr frame; |
2889 | if (in_frame != nullptr) | |
2890 | frame = *in_frame; | |
2891 | ||
86542ab5 | 2892 | return resolve_dynamic_type_internal (type, &pinfo, frame, true); |
d98b7a16 TT |
2893 | } |
2894 | ||
d9823cbb KB |
2895 | /* See gdbtypes.h */ |
2896 | ||
24e99c6c SM |
2897 | dynamic_prop * |
2898 | type::dyn_prop (dynamic_prop_node_kind prop_kind) const | |
d9823cbb | 2899 | { |
98d48915 | 2900 | dynamic_prop_list *node = this->main_type->dyn_prop_list; |
d9823cbb KB |
2901 | |
2902 | while (node != NULL) | |
2903 | { | |
2904 | if (node->prop_kind == prop_kind) | |
dda83cd7 | 2905 | return &node->prop; |
d9823cbb KB |
2906 | node = node->next; |
2907 | } | |
2908 | return NULL; | |
2909 | } | |
2910 | ||
2911 | /* See gdbtypes.h */ | |
2912 | ||
2913 | void | |
5c54719c | 2914 | type::add_dyn_prop (dynamic_prop_node_kind prop_kind, dynamic_prop prop) |
d9823cbb KB |
2915 | { |
2916 | struct dynamic_prop_list *temp; | |
2917 | ||
30625020 | 2918 | gdb_assert (this->is_objfile_owned ()); |
d9823cbb | 2919 | |
6ac37371 | 2920 | temp = XOBNEW (&this->objfile_owner ()->objfile_obstack, |
50a82047 | 2921 | struct dynamic_prop_list); |
d9823cbb | 2922 | temp->prop_kind = prop_kind; |
283a9958 | 2923 | temp->prop = prop; |
98d48915 | 2924 | temp->next = this->main_type->dyn_prop_list; |
d9823cbb | 2925 | |
98d48915 | 2926 | this->main_type->dyn_prop_list = temp; |
d9823cbb KB |
2927 | } |
2928 | ||
7aa91313 | 2929 | /* See gdbtypes.h. */ |
9920b434 BH |
2930 | |
2931 | void | |
7aa91313 | 2932 | type::remove_dyn_prop (dynamic_prop_node_kind kind) |
9920b434 BH |
2933 | { |
2934 | struct dynamic_prop_list *prev_node, *curr_node; | |
2935 | ||
98d48915 | 2936 | curr_node = this->main_type->dyn_prop_list; |
9920b434 BH |
2937 | prev_node = NULL; |
2938 | ||
2939 | while (NULL != curr_node) | |
2940 | { | |
7aa91313 | 2941 | if (curr_node->prop_kind == kind) |
9920b434 BH |
2942 | { |
2943 | /* Update the linked list but don't free anything. | |
49ba125f | 2944 | The property was allocated on obstack and it is not known |
9920b434 | 2945 | if we are on top of it. Nevertheless, everything is released |
49ba125f | 2946 | when the complete obstack is freed. */ |
9920b434 | 2947 | if (NULL == prev_node) |
98d48915 | 2948 | this->main_type->dyn_prop_list = curr_node->next; |
9920b434 BH |
2949 | else |
2950 | prev_node->next = curr_node->next; | |
2951 | ||
2952 | return; | |
2953 | } | |
2954 | ||
2955 | prev_node = curr_node; | |
2956 | curr_node = curr_node->next; | |
2957 | } | |
2958 | } | |
d9823cbb | 2959 | |
92163a10 JK |
2960 | /* Find the real type of TYPE. This function returns the real type, |
2961 | after removing all layers of typedefs, and completing opaque or stub | |
2962 | types. Completion changes the TYPE argument, but stripping of | |
2963 | typedefs does not. | |
2964 | ||
2965 | Instance flags (e.g. const/volatile) are preserved as typedefs are | |
2966 | stripped. If necessary a new qualified form of the underlying type | |
2967 | is created. | |
2968 | ||
27710edb | 2969 | NOTE: This will return a typedef if type::target_type for the typedef has |
92163a10 JK |
2970 | not been computed and we're either in the middle of reading symbols, or |
2971 | there was no name for the typedef in the debug info. | |
2972 | ||
9bc118a5 DE |
2973 | NOTE: Lookup of opaque types can throw errors for invalid symbol files. |
2974 | QUITs in the symbol reading code can also throw. | |
2975 | Thus this function can throw an exception. | |
2976 | ||
92163a10 JK |
2977 | If TYPE is a TYPE_CODE_TYPEDEF, its length is updated to the length of |
2978 | the target type. | |
c906108c SS |
2979 | |
2980 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
0963b4bd | 2981 | we can find a full definition in some other file. If so, copy this |
7ba81444 MS |
2982 | definition, so we can use it in future. There used to be a comment |
2983 | (but not any code) that if we don't find a full definition, we'd | |
2984 | set a flag so we don't spend time in the future checking the same | |
2985 | type. That would be a mistake, though--we might load in more | |
92163a10 | 2986 | symbols which contain a full definition for the type. */ |
c906108c SS |
2987 | |
2988 | struct type * | |
a02fd225 | 2989 | check_typedef (struct type *type) |
c906108c SS |
2990 | { |
2991 | struct type *orig_type = type; | |
a02fd225 | 2992 | |
423c0af8 MS |
2993 | gdb_assert (type); |
2994 | ||
314ad88d PA |
2995 | /* While we're removing typedefs, we don't want to lose qualifiers. |
2996 | E.g., const/volatile. */ | |
2997 | type_instance_flags instance_flags = type->instance_flags (); | |
2998 | ||
78134374 | 2999 | while (type->code () == TYPE_CODE_TYPEDEF) |
c906108c | 3000 | { |
27710edb | 3001 | if (!type->target_type ()) |
c906108c | 3002 | { |
0d5cff50 | 3003 | const char *name; |
c906108c SS |
3004 | struct symbol *sym; |
3005 | ||
3006 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 3007 | reading a symtab. Infinite recursion is one danger. */ |
c906108c | 3008 | if (currently_reading_symtab) |
92163a10 | 3009 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 3010 | |
7d93a1e0 | 3011 | name = type->name (); |
c906108c SS |
3012 | if (name == NULL) |
3013 | { | |
23136709 | 3014 | stub_noname_complaint (); |
92163a10 | 3015 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 3016 | } |
974b36c2 TT |
3017 | domain_search_flag flag |
3018 | = ((type->language () == language_c | |
3019 | || type->language () == language_objc | |
3020 | || type->language () == language_opencl | |
3021 | || type->language () == language_minimal) | |
3022 | ? SEARCH_STRUCT_DOMAIN | |
3023 | : SEARCH_TYPE_DOMAIN); | |
3024 | sym = lookup_symbol (name, nullptr, flag, nullptr).symbol; | |
c906108c | 3025 | if (sym) |
8a50fdce | 3026 | type->set_target_type (sym->type ()); |
7ba81444 | 3027 | else /* TYPE_CODE_UNDEF */ |
c9eb9f18 | 3028 | type->set_target_type (type_allocator (type->arch ()).new_type ()); |
c906108c | 3029 | } |
27710edb | 3030 | type = type->target_type (); |
c906108c | 3031 | |
92163a10 JK |
3032 | /* Preserve the instance flags as we traverse down the typedef chain. |
3033 | ||
3034 | Handling address spaces/classes is nasty, what do we do if there's a | |
3035 | conflict? | |
3036 | E.g., what if an outer typedef marks the type as class_1 and an inner | |
3037 | typedef marks the type as class_2? | |
3038 | This is the wrong place to do such error checking. We leave it to | |
3039 | the code that created the typedef in the first place to flag the | |
3040 | error. We just pick the outer address space (akin to letting the | |
3041 | outer cast in a chain of casting win), instead of assuming | |
3042 | "it can't happen". */ | |
3043 | { | |
314ad88d PA |
3044 | const type_instance_flags ALL_SPACES |
3045 | = (TYPE_INSTANCE_FLAG_CODE_SPACE | |
3046 | | TYPE_INSTANCE_FLAG_DATA_SPACE); | |
3047 | const type_instance_flags ALL_CLASSES | |
3048 | = TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL; | |
3049 | ||
3050 | type_instance_flags new_instance_flags = type->instance_flags (); | |
92163a10 JK |
3051 | |
3052 | /* Treat code vs data spaces and address classes separately. */ | |
3053 | if ((instance_flags & ALL_SPACES) != 0) | |
3054 | new_instance_flags &= ~ALL_SPACES; | |
3055 | if ((instance_flags & ALL_CLASSES) != 0) | |
3056 | new_instance_flags &= ~ALL_CLASSES; | |
3057 | ||
3058 | instance_flags |= new_instance_flags; | |
3059 | } | |
3060 | } | |
a02fd225 | 3061 | |
7ba81444 MS |
3062 | /* If this is a struct/class/union with no fields, then check |
3063 | whether a full definition exists somewhere else. This is for | |
3064 | systems where a type definition with no fields is issued for such | |
3065 | types, instead of identifying them as stub types in the first | |
3066 | place. */ | |
c5aa993b | 3067 | |
7ba81444 MS |
3068 | if (TYPE_IS_OPAQUE (type) |
3069 | && opaque_type_resolution | |
3070 | && !currently_reading_symtab) | |
c906108c | 3071 | { |
7d93a1e0 | 3072 | const char *name = type->name (); |
c5aa993b | 3073 | struct type *newtype; |
d8734c88 | 3074 | |
c906108c SS |
3075 | if (name == NULL) |
3076 | { | |
23136709 | 3077 | stub_noname_complaint (); |
92163a10 | 3078 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
3079 | } |
3080 | newtype = lookup_transparent_type (name); | |
ad766c0a | 3081 | |
c906108c | 3082 | if (newtype) |
ad766c0a | 3083 | { |
7ba81444 MS |
3084 | /* If the resolved type and the stub are in the same |
3085 | objfile, then replace the stub type with the real deal. | |
3086 | But if they're in separate objfiles, leave the stub | |
3087 | alone; we'll just look up the transparent type every time | |
3088 | we call check_typedef. We can't create pointers between | |
3089 | types allocated to different objfiles, since they may | |
3090 | have different lifetimes. Trying to copy NEWTYPE over to | |
3091 | TYPE's objfile is pointless, too, since you'll have to | |
3092 | move over any other types NEWTYPE refers to, which could | |
3093 | be an unbounded amount of stuff. */ | |
6ac37371 | 3094 | if (newtype->objfile_owner () == type->objfile_owner ()) |
10242f36 | 3095 | type = make_qualified_type (newtype, type->instance_flags (), type); |
ad766c0a JB |
3096 | else |
3097 | type = newtype; | |
3098 | } | |
c906108c | 3099 | } |
7ba81444 MS |
3100 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
3101 | types. */ | |
e46d3488 | 3102 | else if (type->is_stub () && !currently_reading_symtab) |
c906108c | 3103 | { |
7d93a1e0 | 3104 | const char *name = type->name (); |
c906108c | 3105 | struct symbol *sym; |
d8734c88 | 3106 | |
c906108c SS |
3107 | if (name == NULL) |
3108 | { | |
23136709 | 3109 | stub_noname_complaint (); |
92163a10 | 3110 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 3111 | } |
974b36c2 TT |
3112 | domain_search_flag flag |
3113 | = ((type->language () == language_c | |
3114 | || type->language () == language_objc | |
3115 | || type->language () == language_opencl | |
3116 | || type->language () == language_minimal) | |
3117 | ? SEARCH_STRUCT_DOMAIN | |
3118 | : SEARCH_TYPE_DOMAIN); | |
3119 | sym = lookup_symbol (name, nullptr, flag, nullptr).symbol; | |
c906108c | 3120 | if (sym) |
dda83cd7 SM |
3121 | { |
3122 | /* Same as above for opaque types, we can replace the stub | |
3123 | with the complete type only if they are in the same | |
3124 | objfile. */ | |
5f9c5a63 SM |
3125 | if (sym->type ()->objfile_owner () == type->objfile_owner ()) |
3126 | type = make_qualified_type (sym->type (), | |
10242f36 | 3127 | type->instance_flags (), type); |
c26f2453 | 3128 | else |
5f9c5a63 | 3129 | type = sym->type (); |
dda83cd7 | 3130 | } |
c906108c SS |
3131 | } |
3132 | ||
d2183968 | 3133 | if (type->target_is_stub ()) |
c906108c | 3134 | { |
27710edb | 3135 | struct type *target_type = check_typedef (type->target_type ()); |
c906108c | 3136 | |
d2183968 | 3137 | if (target_type->is_stub () || target_type->target_is_stub ()) |
c5aa993b | 3138 | { |
73e2eb35 | 3139 | /* Nothing we can do. */ |
c5aa993b | 3140 | } |
78134374 | 3141 | else if (type->code () == TYPE_CODE_RANGE) |
c906108c | 3142 | { |
df86565b | 3143 | type->set_length (target_type->length ()); |
8f53807e | 3144 | type->set_target_is_stub (false); |
c906108c | 3145 | } |
78134374 | 3146 | else if (type->code () == TYPE_CODE_ARRAY |
8dbb1375 | 3147 | && update_static_array_size (type)) |
8f53807e | 3148 | type->set_target_is_stub (false); |
c906108c | 3149 | } |
92163a10 JK |
3150 | |
3151 | type = make_qualified_type (type, instance_flags, NULL); | |
3152 | ||
7ba81444 | 3153 | /* Cache TYPE_LENGTH for future use. */ |
df86565b | 3154 | orig_type->set_length (type->length ()); |
92163a10 | 3155 | |
c906108c SS |
3156 | return type; |
3157 | } | |
3158 | ||
7ba81444 | 3159 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
48319d1f | 3160 | occurs, silently return a void type. */ |
c91ecb25 | 3161 | |
b9362cc7 | 3162 | static struct type * |
f5756acc | 3163 | safe_parse_type (struct gdbarch *gdbarch, const char *p, int length) |
c91ecb25 | 3164 | { |
34365054 | 3165 | struct type *type = NULL; /* Initialize to keep gcc happy. */ |
c91ecb25 | 3166 | |
7ba81444 | 3167 | /* Suppress error messages. */ |
c3d4b6a6 TT |
3168 | scoped_restore saved_gdb_stderr = make_scoped_restore (&gdb_stderr, |
3169 | &null_stream); | |
c91ecb25 | 3170 | |
7ba81444 | 3171 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
a70b8144 | 3172 | try |
8e7b59a5 KS |
3173 | { |
3174 | type = parse_and_eval_type (p, length); | |
3175 | } | |
230d2906 | 3176 | catch (const gdb_exception_error &except) |
492d29ea PA |
3177 | { |
3178 | type = builtin_type (gdbarch)->builtin_void; | |
3179 | } | |
c91ecb25 | 3180 | |
c91ecb25 ND |
3181 | return type; |
3182 | } | |
3183 | ||
c906108c SS |
3184 | /* Ugly hack to convert method stubs into method types. |
3185 | ||
7ba81444 MS |
3186 | He ain't kiddin'. This demangles the name of the method into a |
3187 | string including argument types, parses out each argument type, | |
3188 | generates a string casting a zero to that type, evaluates the | |
3189 | string, and stuffs the resulting type into an argtype vector!!! | |
3190 | Then it knows the type of the whole function (including argument | |
3191 | types for overloading), which info used to be in the stab's but was | |
3192 | removed to hack back the space required for them. */ | |
c906108c | 3193 | |
de17c821 | 3194 | static void |
fba45db2 | 3195 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c | 3196 | { |
8ee511af | 3197 | struct gdbarch *gdbarch = type->arch (); |
c906108c SS |
3198 | struct fn_field *f; |
3199 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
3456e70c TT |
3200 | gdb::unique_xmalloc_ptr<char> demangled_name |
3201 | = gdb_demangle (mangled_name, DMGL_PARAMS | DMGL_ANSI); | |
c906108c SS |
3202 | char *argtypetext, *p; |
3203 | int depth = 0, argcount = 1; | |
ad2f7632 | 3204 | struct field *argtypes; |
c906108c SS |
3205 | struct type *mtype; |
3206 | ||
3207 | /* Make sure we got back a function string that we can use. */ | |
3208 | if (demangled_name) | |
3456e70c | 3209 | p = strchr (demangled_name.get (), '('); |
502dcf4e AC |
3210 | else |
3211 | p = NULL; | |
c906108c SS |
3212 | |
3213 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
3214 | error (_("Internal: Cannot demangle mangled name `%s'."), |
3215 | mangled_name); | |
c906108c SS |
3216 | |
3217 | /* Now, read in the parameters that define this type. */ | |
3218 | p += 1; | |
3219 | argtypetext = p; | |
3220 | while (*p) | |
3221 | { | |
070ad9f0 | 3222 | if (*p == '(' || *p == '<') |
c906108c SS |
3223 | { |
3224 | depth += 1; | |
3225 | } | |
070ad9f0 | 3226 | else if (*p == ')' || *p == '>') |
c906108c SS |
3227 | { |
3228 | depth -= 1; | |
3229 | } | |
3230 | else if (*p == ',' && depth == 0) | |
3231 | { | |
3232 | argcount += 1; | |
3233 | } | |
3234 | ||
3235 | p += 1; | |
3236 | } | |
3237 | ||
ad2f7632 | 3238 | /* If we read one argument and it was ``void'', don't count it. */ |
61012eef | 3239 | if (startswith (argtypetext, "(void)")) |
ad2f7632 | 3240 | argcount -= 1; |
c906108c | 3241 | |
ad2f7632 DJ |
3242 | /* We need one extra slot, for the THIS pointer. */ |
3243 | ||
3244 | argtypes = (struct field *) | |
959db212 | 3245 | TYPE_ZALLOC (type, (argcount + 1) * sizeof (struct field)); |
c906108c | 3246 | p = argtypetext; |
4a1970e4 DJ |
3247 | |
3248 | /* Add THIS pointer for non-static methods. */ | |
3249 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
3250 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
3251 | argcount = 0; | |
3252 | else | |
3253 | { | |
5d14b6e5 | 3254 | argtypes[0].set_type (lookup_pointer_type (type)); |
4a1970e4 DJ |
3255 | argcount = 1; |
3256 | } | |
c906108c | 3257 | |
0963b4bd | 3258 | if (*p != ')') /* () means no args, skip while. */ |
c906108c SS |
3259 | { |
3260 | depth = 0; | |
3261 | while (*p) | |
3262 | { | |
3263 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
3264 | { | |
ad2f7632 | 3265 | /* Avoid parsing of ellipsis, they will be handled below. |
dda83cd7 | 3266 | Also avoid ``void'' as above. */ |
ad2f7632 DJ |
3267 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 |
3268 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 3269 | { |
5d14b6e5 SM |
3270 | argtypes[argcount].set_type |
3271 | (safe_parse_type (gdbarch, argtypetext, p - argtypetext)); | |
c906108c SS |
3272 | argcount += 1; |
3273 | } | |
3274 | argtypetext = p + 1; | |
3275 | } | |
3276 | ||
070ad9f0 | 3277 | if (*p == '(' || *p == '<') |
c906108c SS |
3278 | { |
3279 | depth += 1; | |
3280 | } | |
070ad9f0 | 3281 | else if (*p == ')' || *p == '>') |
c906108c SS |
3282 | { |
3283 | depth -= 1; | |
3284 | } | |
3285 | ||
3286 | p += 1; | |
3287 | } | |
3288 | } | |
3289 | ||
c906108c SS |
3290 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
3291 | ||
3292 | /* Now update the old "stub" type into a real type. */ | |
3293 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
09e2d7c7 DE |
3294 | /* MTYPE may currently be a function (TYPE_CODE_FUNC). |
3295 | We want a method (TYPE_CODE_METHOD). */ | |
27710edb | 3296 | smash_to_method_type (mtype, type, mtype->target_type (), |
09e2d7c7 | 3297 | argtypes, argcount, p[-2] == '.'); |
b4b73759 | 3298 | mtype->set_is_stub (false); |
c906108c SS |
3299 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
3300 | } | |
3301 | ||
7ba81444 MS |
3302 | /* This is the external interface to check_stub_method, above. This |
3303 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
3304 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
3305 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
3306 | correct. | |
de17c821 DJ |
3307 | |
3308 | This function unfortunately can not die until stabs do. */ | |
3309 | ||
3310 | void | |
3311 | check_stub_method_group (struct type *type, int method_id) | |
3312 | { | |
3313 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
3314 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
de17c821 | 3315 | |
041be526 SM |
3316 | for (int j = 0; j < len; j++) |
3317 | { | |
3318 | if (TYPE_FN_FIELD_STUB (f, j)) | |
de17c821 | 3319 | check_stub_method (type, method_id, j); |
de17c821 DJ |
3320 | } |
3321 | } | |
3322 | ||
405feb71 | 3323 | /* Ensure it is in .rodata (if available) by working around GCC PR 44690. */ |
9655fd1a | 3324 | const struct cplus_struct_type cplus_struct_default = { }; |
c906108c SS |
3325 | |
3326 | void | |
fba45db2 | 3327 | allocate_cplus_struct_type (struct type *type) |
c906108c | 3328 | { |
b4ba55a1 JB |
3329 | if (HAVE_CPLUS_STRUCT (type)) |
3330 | /* Structure was already allocated. Nothing more to do. */ | |
3331 | return; | |
3332 | ||
3333 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF; | |
3334 | TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
959db212 | 3335 | TYPE_ZALLOC (type, sizeof (struct cplus_struct_type)); |
b4ba55a1 | 3336 | *(TYPE_RAW_CPLUS_SPECIFIC (type)) = cplus_struct_default; |
ae6ae975 | 3337 | set_type_vptr_fieldno (type, -1); |
c906108c SS |
3338 | } |
3339 | ||
b4ba55a1 JB |
3340 | const struct gnat_aux_type gnat_aux_default = |
3341 | { NULL }; | |
3342 | ||
3343 | /* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF, | |
3344 | and allocate the associated gnat-specific data. The gnat-specific | |
3345 | data is also initialized to gnat_aux_default. */ | |
5212577a | 3346 | |
b4ba55a1 JB |
3347 | void |
3348 | allocate_gnat_aux_type (struct type *type) | |
3349 | { | |
3350 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF; | |
3351 | TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) | |
959db212 | 3352 | TYPE_ZALLOC (type, sizeof (struct gnat_aux_type)); |
b4ba55a1 JB |
3353 | *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default; |
3354 | } | |
3355 | ||
19f392bc UW |
3356 | /* Helper function to verify floating-point format and size. |
3357 | BIT is the type size in bits; if BIT equals -1, the size is | |
3358 | determined by the floatformat. Returns size to be used. */ | |
3359 | ||
3360 | static int | |
0db7851f | 3361 | verify_floatformat (int bit, const struct floatformat *floatformat) |
19f392bc | 3362 | { |
0db7851f | 3363 | gdb_assert (floatformat != NULL); |
9b790ce7 | 3364 | |
19f392bc | 3365 | if (bit == -1) |
0db7851f | 3366 | bit = floatformat->totalsize; |
19f392bc | 3367 | |
0db7851f UW |
3368 | gdb_assert (bit >= 0); |
3369 | gdb_assert (bit >= floatformat->totalsize); | |
19f392bc UW |
3370 | |
3371 | return bit; | |
3372 | } | |
3373 | ||
0db7851f UW |
3374 | /* Return the floating-point format for a floating-point variable of |
3375 | type TYPE. */ | |
3376 | ||
3377 | const struct floatformat * | |
3378 | floatformat_from_type (const struct type *type) | |
3379 | { | |
78134374 | 3380 | gdb_assert (type->code () == TYPE_CODE_FLT); |
0db7851f UW |
3381 | gdb_assert (TYPE_FLOATFORMAT (type)); |
3382 | return TYPE_FLOATFORMAT (type); | |
3383 | } | |
3384 | ||
2d39ccd3 | 3385 | /* See gdbtypes.h. */ |
19f392bc UW |
3386 | |
3387 | struct type * | |
2d39ccd3 | 3388 | init_integer_type (type_allocator &alloc, |
19f392bc UW |
3389 | int bit, int unsigned_p, const char *name) |
3390 | { | |
3391 | struct type *t; | |
3392 | ||
2d39ccd3 | 3393 | t = alloc.new_type (TYPE_CODE_INT, bit, name); |
19f392bc | 3394 | if (unsigned_p) |
653223d3 | 3395 | t->set_is_unsigned (true); |
19f392bc | 3396 | |
20a5fcbd TT |
3397 | TYPE_SPECIFIC_FIELD (t) = TYPE_SPECIFIC_INT; |
3398 | TYPE_MAIN_TYPE (t)->type_specific.int_stuff.bit_size = bit; | |
3399 | TYPE_MAIN_TYPE (t)->type_specific.int_stuff.bit_offset = 0; | |
3400 | ||
19f392bc UW |
3401 | return t; |
3402 | } | |
3403 | ||
f50b437c | 3404 | /* See gdbtypes.h. */ |
19f392bc UW |
3405 | |
3406 | struct type * | |
f50b437c | 3407 | init_character_type (type_allocator &alloc, |
19f392bc UW |
3408 | int bit, int unsigned_p, const char *name) |
3409 | { | |
3410 | struct type *t; | |
3411 | ||
f50b437c | 3412 | t = alloc.new_type (TYPE_CODE_CHAR, bit, name); |
19f392bc | 3413 | if (unsigned_p) |
653223d3 | 3414 | t->set_is_unsigned (true); |
19f392bc UW |
3415 | |
3416 | return t; | |
3417 | } | |
3418 | ||
46c04ea3 | 3419 | /* See gdbtypes.h. */ |
19f392bc UW |
3420 | |
3421 | struct type * | |
46c04ea3 | 3422 | init_boolean_type (type_allocator &alloc, |
19f392bc UW |
3423 | int bit, int unsigned_p, const char *name) |
3424 | { | |
3425 | struct type *t; | |
3426 | ||
46c04ea3 | 3427 | t = alloc.new_type (TYPE_CODE_BOOL, bit, name); |
19f392bc | 3428 | if (unsigned_p) |
653223d3 | 3429 | t->set_is_unsigned (true); |
19f392bc | 3430 | |
20a5fcbd TT |
3431 | TYPE_SPECIFIC_FIELD (t) = TYPE_SPECIFIC_INT; |
3432 | TYPE_MAIN_TYPE (t)->type_specific.int_stuff.bit_size = bit; | |
3433 | TYPE_MAIN_TYPE (t)->type_specific.int_stuff.bit_offset = 0; | |
3434 | ||
19f392bc UW |
3435 | return t; |
3436 | } | |
3437 | ||
77c5f496 | 3438 | /* See gdbtypes.h. */ |
19f392bc UW |
3439 | |
3440 | struct type * | |
77c5f496 | 3441 | init_float_type (type_allocator &alloc, |
19f392bc | 3442 | int bit, const char *name, |
103a685e TT |
3443 | const struct floatformat **floatformats, |
3444 | enum bfd_endian byte_order) | |
19f392bc | 3445 | { |
103a685e TT |
3446 | if (byte_order == BFD_ENDIAN_UNKNOWN) |
3447 | { | |
77c5f496 | 3448 | struct gdbarch *gdbarch = alloc.arch (); |
103a685e TT |
3449 | byte_order = gdbarch_byte_order (gdbarch); |
3450 | } | |
3451 | const struct floatformat *fmt = floatformats[byte_order]; | |
19f392bc UW |
3452 | struct type *t; |
3453 | ||
0db7851f | 3454 | bit = verify_floatformat (bit, fmt); |
77c5f496 | 3455 | t = alloc.new_type (TYPE_CODE_FLT, bit, name); |
0db7851f | 3456 | TYPE_FLOATFORMAT (t) = fmt; |
19f392bc UW |
3457 | |
3458 | return t; | |
3459 | } | |
3460 | ||
0776344a | 3461 | /* See gdbtypes.h. */ |
19f392bc UW |
3462 | |
3463 | struct type * | |
0776344a | 3464 | init_decfloat_type (type_allocator &alloc, int bit, const char *name) |
19f392bc | 3465 | { |
0776344a | 3466 | return alloc.new_type (TYPE_CODE_DECFLOAT, bit, name); |
19f392bc UW |
3467 | } |
3468 | ||
ae710496 TV |
3469 | /* Return true if init_complex_type can be called with TARGET_TYPE. */ |
3470 | ||
3471 | bool | |
3472 | can_create_complex_type (struct type *target_type) | |
3473 | { | |
3474 | return (target_type->code () == TYPE_CODE_INT | |
3475 | || target_type->code () == TYPE_CODE_FLT); | |
3476 | } | |
3477 | ||
5b930b45 TT |
3478 | /* Allocate a TYPE_CODE_COMPLEX type structure. NAME is the type |
3479 | name. TARGET_TYPE is the component type. */ | |
19f392bc UW |
3480 | |
3481 | struct type * | |
5b930b45 | 3482 | init_complex_type (const char *name, struct type *target_type) |
19f392bc UW |
3483 | { |
3484 | struct type *t; | |
3485 | ||
ae710496 | 3486 | gdb_assert (can_create_complex_type (target_type)); |
5b930b45 TT |
3487 | |
3488 | if (TYPE_MAIN_TYPE (target_type)->flds_bnds.complex_type == nullptr) | |
3489 | { | |
6b9d0dfd | 3490 | if (name == nullptr && target_type->name () != nullptr) |
5b930b45 | 3491 | { |
959db212 TV |
3492 | /* No zero-initialization required, initialized by strcpy/strcat |
3493 | below. */ | |
5b930b45 TT |
3494 | char *new_name |
3495 | = (char *) TYPE_ALLOC (target_type, | |
7d93a1e0 | 3496 | strlen (target_type->name ()) |
5b930b45 TT |
3497 | + strlen ("_Complex ") + 1); |
3498 | strcpy (new_name, "_Complex "); | |
7d93a1e0 | 3499 | strcat (new_name, target_type->name ()); |
5b930b45 TT |
3500 | name = new_name; |
3501 | } | |
3502 | ||
9fa83a7a | 3503 | t = type_allocator (target_type).new_type (); |
5b930b45 | 3504 | set_type_code (t, TYPE_CODE_COMPLEX); |
df86565b | 3505 | t->set_length (2 * target_type->length ()); |
d0e39ea2 | 3506 | t->set_name (name); |
5b930b45 | 3507 | |
8a50fdce | 3508 | t->set_target_type (target_type); |
5b930b45 TT |
3509 | TYPE_MAIN_TYPE (target_type)->flds_bnds.complex_type = t; |
3510 | } | |
3511 | ||
3512 | return TYPE_MAIN_TYPE (target_type)->flds_bnds.complex_type; | |
19f392bc UW |
3513 | } |
3514 | ||
9c794d2d | 3515 | /* See gdbtypes.h. */ |
19f392bc UW |
3516 | |
3517 | struct type * | |
9c794d2d | 3518 | init_pointer_type (type_allocator &alloc, |
19f392bc UW |
3519 | int bit, const char *name, struct type *target_type) |
3520 | { | |
3521 | struct type *t; | |
3522 | ||
9c794d2d | 3523 | t = alloc.new_type (TYPE_CODE_PTR, bit, name); |
8a50fdce | 3524 | t->set_target_type (target_type); |
653223d3 | 3525 | t->set_is_unsigned (true); |
19f392bc UW |
3526 | return t; |
3527 | } | |
3528 | ||
09584414 JB |
3529 | /* Allocate a TYPE_CODE_FIXED_POINT type structure associated with OBJFILE. |
3530 | BIT is the pointer type size in bits. | |
3531 | UNSIGNED_P should be nonzero if the type is unsigned. | |
3532 | NAME is the type name. */ | |
3533 | ||
3534 | struct type * | |
d5592272 | 3535 | init_fixed_point_type (type_allocator &alloc, |
09584414 JB |
3536 | int bit, int unsigned_p, const char *name) |
3537 | { | |
3538 | struct type *t; | |
3539 | ||
d5592272 | 3540 | t = alloc.new_type (TYPE_CODE_FIXED_POINT, bit, name); |
09584414 JB |
3541 | if (unsigned_p) |
3542 | t->set_is_unsigned (true); | |
3543 | ||
3544 | return t; | |
3545 | } | |
3546 | ||
2b4424c3 TT |
3547 | /* See gdbtypes.h. */ |
3548 | ||
3549 | unsigned | |
3550 | type_raw_align (struct type *type) | |
3551 | { | |
3552 | if (type->align_log2 != 0) | |
3553 | return 1 << (type->align_log2 - 1); | |
3554 | return 0; | |
3555 | } | |
3556 | ||
3557 | /* See gdbtypes.h. */ | |
3558 | ||
3559 | unsigned | |
3560 | type_align (struct type *type) | |
3561 | { | |
5561fc30 | 3562 | /* Check alignment provided in the debug information. */ |
2b4424c3 TT |
3563 | unsigned raw_align = type_raw_align (type); |
3564 | if (raw_align != 0) | |
3565 | return raw_align; | |
3566 | ||
5561fc30 | 3567 | /* Allow the architecture to provide an alignment. */ |
8ee511af | 3568 | ULONGEST align = gdbarch_type_align (type->arch (), type); |
5561fc30 AB |
3569 | if (align != 0) |
3570 | return align; | |
3571 | ||
78134374 | 3572 | switch (type->code ()) |
2b4424c3 TT |
3573 | { |
3574 | case TYPE_CODE_PTR: | |
3575 | case TYPE_CODE_FUNC: | |
3576 | case TYPE_CODE_FLAGS: | |
3577 | case TYPE_CODE_INT: | |
75ba10dc | 3578 | case TYPE_CODE_RANGE: |
2b4424c3 TT |
3579 | case TYPE_CODE_FLT: |
3580 | case TYPE_CODE_ENUM: | |
3581 | case TYPE_CODE_REF: | |
3582 | case TYPE_CODE_RVALUE_REF: | |
3583 | case TYPE_CODE_CHAR: | |
3584 | case TYPE_CODE_BOOL: | |
3585 | case TYPE_CODE_DECFLOAT: | |
70cd633e AB |
3586 | case TYPE_CODE_METHODPTR: |
3587 | case TYPE_CODE_MEMBERPTR: | |
5561fc30 | 3588 | align = type_length_units (check_typedef (type)); |
2b4424c3 TT |
3589 | break; |
3590 | ||
3591 | case TYPE_CODE_ARRAY: | |
3592 | case TYPE_CODE_COMPLEX: | |
3593 | case TYPE_CODE_TYPEDEF: | |
27710edb | 3594 | align = type_align (type->target_type ()); |
2b4424c3 TT |
3595 | break; |
3596 | ||
3597 | case TYPE_CODE_STRUCT: | |
3598 | case TYPE_CODE_UNION: | |
3599 | { | |
41077b66 | 3600 | int number_of_non_static_fields = 0; |
1f704f76 | 3601 | for (unsigned i = 0; i < type->num_fields (); ++i) |
2b4424c3 | 3602 | { |
c819a338 | 3603 | if (!type->field (i).is_static ()) |
2b4424c3 | 3604 | { |
41077b66 | 3605 | number_of_non_static_fields++; |
940da03e | 3606 | ULONGEST f_align = type_align (type->field (i).type ()); |
bf9a735e AB |
3607 | if (f_align == 0) |
3608 | { | |
3609 | /* Don't pretend we know something we don't. */ | |
3610 | align = 0; | |
3611 | break; | |
3612 | } | |
3613 | if (f_align > align) | |
3614 | align = f_align; | |
2b4424c3 | 3615 | } |
2b4424c3 | 3616 | } |
41077b66 AB |
3617 | /* A struct with no fields, or with only static fields has an |
3618 | alignment of 1. */ | |
3619 | if (number_of_non_static_fields == 0) | |
3620 | align = 1; | |
2b4424c3 TT |
3621 | } |
3622 | break; | |
3623 | ||
3624 | case TYPE_CODE_SET: | |
2b4424c3 TT |
3625 | case TYPE_CODE_STRING: |
3626 | /* Not sure what to do here, and these can't appear in C or C++ | |
3627 | anyway. */ | |
3628 | break; | |
3629 | ||
2b4424c3 TT |
3630 | case TYPE_CODE_VOID: |
3631 | align = 1; | |
3632 | break; | |
3633 | ||
3634 | case TYPE_CODE_ERROR: | |
3635 | case TYPE_CODE_METHOD: | |
3636 | default: | |
3637 | break; | |
3638 | } | |
3639 | ||
3640 | if ((align & (align - 1)) != 0) | |
3641 | { | |
3642 | /* Not a power of 2, so pass. */ | |
3643 | align = 0; | |
3644 | } | |
3645 | ||
3646 | return align; | |
3647 | } | |
3648 | ||
3649 | /* See gdbtypes.h. */ | |
3650 | ||
3651 | bool | |
3652 | set_type_align (struct type *type, ULONGEST align) | |
3653 | { | |
3654 | /* Must be a power of 2. Zero is ok. */ | |
3655 | gdb_assert ((align & (align - 1)) == 0); | |
3656 | ||
3657 | unsigned result = 0; | |
3658 | while (align != 0) | |
3659 | { | |
3660 | ++result; | |
3661 | align >>= 1; | |
3662 | } | |
3663 | ||
3664 | if (result >= (1 << TYPE_ALIGN_BITS)) | |
3665 | return false; | |
3666 | ||
3667 | type->align_log2 = result; | |
3668 | return true; | |
3669 | } | |
3670 | ||
5212577a DE |
3671 | \f |
3672 | /* Queries on types. */ | |
c906108c | 3673 | |
c906108c | 3674 | int |
fba45db2 | 3675 | can_dereference (struct type *t) |
c906108c | 3676 | { |
7ba81444 MS |
3677 | /* FIXME: Should we return true for references as well as |
3678 | pointers? */ | |
f168693b | 3679 | t = check_typedef (t); |
c906108c SS |
3680 | return |
3681 | (t != NULL | |
78134374 | 3682 | && t->code () == TYPE_CODE_PTR |
27710edb | 3683 | && t->target_type ()->code () != TYPE_CODE_VOID); |
c906108c SS |
3684 | } |
3685 | ||
adf40b2e | 3686 | int |
fba45db2 | 3687 | is_integral_type (struct type *t) |
adf40b2e | 3688 | { |
f168693b | 3689 | t = check_typedef (t); |
adf40b2e JM |
3690 | return |
3691 | ((t != NULL) | |
09584414 | 3692 | && !is_fixed_point_type (t) |
78134374 SM |
3693 | && ((t->code () == TYPE_CODE_INT) |
3694 | || (t->code () == TYPE_CODE_ENUM) | |
3695 | || (t->code () == TYPE_CODE_FLAGS) | |
3696 | || (t->code () == TYPE_CODE_CHAR) | |
3697 | || (t->code () == TYPE_CODE_RANGE) | |
3698 | || (t->code () == TYPE_CODE_BOOL))); | |
adf40b2e JM |
3699 | } |
3700 | ||
70100014 UW |
3701 | int |
3702 | is_floating_type (struct type *t) | |
3703 | { | |
3704 | t = check_typedef (t); | |
3705 | return | |
3706 | ((t != NULL) | |
78134374 SM |
3707 | && ((t->code () == TYPE_CODE_FLT) |
3708 | || (t->code () == TYPE_CODE_DECFLOAT))); | |
70100014 UW |
3709 | } |
3710 | ||
e09342b5 TJB |
3711 | /* Return true if TYPE is scalar. */ |
3712 | ||
220475ed | 3713 | int |
e09342b5 TJB |
3714 | is_scalar_type (struct type *type) |
3715 | { | |
f168693b | 3716 | type = check_typedef (type); |
e09342b5 | 3717 | |
09584414 JB |
3718 | if (is_fixed_point_type (type)) |
3719 | return 0; /* Implemented as a scalar, but more like a floating point. */ | |
3720 | ||
78134374 | 3721 | switch (type->code ()) |
e09342b5 TJB |
3722 | { |
3723 | case TYPE_CODE_ARRAY: | |
3724 | case TYPE_CODE_STRUCT: | |
3725 | case TYPE_CODE_UNION: | |
3726 | case TYPE_CODE_SET: | |
3727 | case TYPE_CODE_STRING: | |
e09342b5 TJB |
3728 | return 0; |
3729 | default: | |
3730 | return 1; | |
3731 | } | |
3732 | } | |
3733 | ||
3734 | /* Return true if T is scalar, or a composite type which in practice has | |
90e4670f TJB |
3735 | the memory layout of a scalar type. E.g., an array or struct with only |
3736 | one scalar element inside it, or a union with only scalar elements. */ | |
e09342b5 TJB |
3737 | |
3738 | int | |
3739 | is_scalar_type_recursive (struct type *t) | |
3740 | { | |
f168693b | 3741 | t = check_typedef (t); |
e09342b5 TJB |
3742 | |
3743 | if (is_scalar_type (t)) | |
3744 | return 1; | |
3745 | /* Are we dealing with an array or string of known dimensions? */ | |
78134374 | 3746 | else if ((t->code () == TYPE_CODE_ARRAY |
1f704f76 | 3747 | || t->code () == TYPE_CODE_STRING) && t->num_fields () == 1 |
3d967001 | 3748 | && t->index_type ()->code () == TYPE_CODE_RANGE) |
e09342b5 TJB |
3749 | { |
3750 | LONGEST low_bound, high_bound; | |
27710edb | 3751 | struct type *elt_type = check_typedef (t->target_type ()); |
e09342b5 | 3752 | |
f8676776 LS |
3753 | if (get_discrete_bounds (t->index_type (), &low_bound, &high_bound)) |
3754 | return (high_bound == low_bound | |
3755 | && is_scalar_type_recursive (elt_type)); | |
3756 | else | |
3757 | return 0; | |
e09342b5 TJB |
3758 | } |
3759 | /* Are we dealing with a struct with one element? */ | |
1f704f76 | 3760 | else if (t->code () == TYPE_CODE_STRUCT && t->num_fields () == 1) |
940da03e | 3761 | return is_scalar_type_recursive (t->field (0).type ()); |
78134374 | 3762 | else if (t->code () == TYPE_CODE_UNION) |
e09342b5 | 3763 | { |
1f704f76 | 3764 | int i, n = t->num_fields (); |
e09342b5 TJB |
3765 | |
3766 | /* If all elements of the union are scalar, then the union is scalar. */ | |
3767 | for (i = 0; i < n; i++) | |
940da03e | 3768 | if (!is_scalar_type_recursive (t->field (i).type ())) |
e09342b5 TJB |
3769 | return 0; |
3770 | ||
3771 | return 1; | |
3772 | } | |
3773 | ||
3774 | return 0; | |
3775 | } | |
3776 | ||
6c659fc2 SC |
3777 | /* Return true is T is a class or a union. False otherwise. */ |
3778 | ||
3779 | int | |
3780 | class_or_union_p (const struct type *t) | |
3781 | { | |
78134374 | 3782 | return (t->code () == TYPE_CODE_STRUCT |
dda83cd7 | 3783 | || t->code () == TYPE_CODE_UNION); |
6c659fc2 SC |
3784 | } |
3785 | ||
4e8f195d TT |
3786 | /* A helper function which returns true if types A and B represent the |
3787 | "same" class type. This is true if the types have the same main | |
3788 | type, or the same name. */ | |
3789 | ||
3790 | int | |
3791 | class_types_same_p (const struct type *a, const struct type *b) | |
3792 | { | |
3793 | return (TYPE_MAIN_TYPE (a) == TYPE_MAIN_TYPE (b) | |
7d93a1e0 SM |
3794 | || (a->name () && b->name () |
3795 | && !strcmp (a->name (), b->name ()))); | |
4e8f195d TT |
3796 | } |
3797 | ||
a9d5ef47 SW |
3798 | /* If BASE is an ancestor of DCLASS return the distance between them. |
3799 | otherwise return -1; | |
3800 | eg: | |
3801 | ||
3802 | class A {}; | |
3803 | class B: public A {}; | |
3804 | class C: public B {}; | |
3805 | class D: C {}; | |
3806 | ||
3807 | distance_to_ancestor (A, A, 0) = 0 | |
3808 | distance_to_ancestor (A, B, 0) = 1 | |
3809 | distance_to_ancestor (A, C, 0) = 2 | |
3810 | distance_to_ancestor (A, D, 0) = 3 | |
3811 | ||
3812 | If PUBLIC is 1 then only public ancestors are considered, | |
3813 | and the function returns the distance only if BASE is a public ancestor | |
3814 | of DCLASS. | |
3815 | Eg: | |
3816 | ||
0963b4bd | 3817 | distance_to_ancestor (A, D, 1) = -1. */ |
c906108c | 3818 | |
0526b37a | 3819 | static int |
fe978cb0 | 3820 | distance_to_ancestor (struct type *base, struct type *dclass, int is_public) |
c906108c SS |
3821 | { |
3822 | int i; | |
a9d5ef47 | 3823 | int d; |
c5aa993b | 3824 | |
f168693b SM |
3825 | base = check_typedef (base); |
3826 | dclass = check_typedef (dclass); | |
c906108c | 3827 | |
4e8f195d | 3828 | if (class_types_same_p (base, dclass)) |
a9d5ef47 | 3829 | return 0; |
c906108c SS |
3830 | |
3831 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
4e8f195d | 3832 | { |
fe978cb0 | 3833 | if (is_public && ! BASETYPE_VIA_PUBLIC (dclass, i)) |
0526b37a SW |
3834 | continue; |
3835 | ||
fe978cb0 | 3836 | d = distance_to_ancestor (base, TYPE_BASECLASS (dclass, i), is_public); |
a9d5ef47 SW |
3837 | if (d >= 0) |
3838 | return 1 + d; | |
4e8f195d | 3839 | } |
c906108c | 3840 | |
a9d5ef47 | 3841 | return -1; |
c906108c | 3842 | } |
4e8f195d | 3843 | |
0526b37a SW |
3844 | /* Check whether BASE is an ancestor or base class or DCLASS |
3845 | Return 1 if so, and 0 if not. | |
3846 | Note: If BASE and DCLASS are of the same type, this function | |
3847 | will return 1. So for some class A, is_ancestor (A, A) will | |
3848 | return 1. */ | |
3849 | ||
3850 | int | |
3851 | is_ancestor (struct type *base, struct type *dclass) | |
3852 | { | |
a9d5ef47 | 3853 | return distance_to_ancestor (base, dclass, 0) >= 0; |
0526b37a SW |
3854 | } |
3855 | ||
4e8f195d TT |
3856 | /* Like is_ancestor, but only returns true when BASE is a public |
3857 | ancestor of DCLASS. */ | |
3858 | ||
3859 | int | |
3860 | is_public_ancestor (struct type *base, struct type *dclass) | |
3861 | { | |
a9d5ef47 | 3862 | return distance_to_ancestor (base, dclass, 1) >= 0; |
4e8f195d TT |
3863 | } |
3864 | ||
3865 | /* A helper function for is_unique_ancestor. */ | |
3866 | ||
3867 | static int | |
3868 | is_unique_ancestor_worker (struct type *base, struct type *dclass, | |
3869 | int *offset, | |
8af8e3bc PA |
3870 | const gdb_byte *valaddr, int embedded_offset, |
3871 | CORE_ADDR address, struct value *val) | |
4e8f195d TT |
3872 | { |
3873 | int i, count = 0; | |
3874 | ||
f168693b SM |
3875 | base = check_typedef (base); |
3876 | dclass = check_typedef (dclass); | |
4e8f195d TT |
3877 | |
3878 | for (i = 0; i < TYPE_N_BASECLASSES (dclass) && count < 2; ++i) | |
3879 | { | |
8af8e3bc PA |
3880 | struct type *iter; |
3881 | int this_offset; | |
4e8f195d | 3882 | |
8af8e3bc PA |
3883 | iter = check_typedef (TYPE_BASECLASS (dclass, i)); |
3884 | ||
3885 | this_offset = baseclass_offset (dclass, i, valaddr, embedded_offset, | |
3886 | address, val); | |
4e8f195d TT |
3887 | |
3888 | if (class_types_same_p (base, iter)) | |
3889 | { | |
3890 | /* If this is the first subclass, set *OFFSET and set count | |
3891 | to 1. Otherwise, if this is at the same offset as | |
3892 | previous instances, do nothing. Otherwise, increment | |
3893 | count. */ | |
3894 | if (*offset == -1) | |
3895 | { | |
3896 | *offset = this_offset; | |
3897 | count = 1; | |
3898 | } | |
3899 | else if (this_offset == *offset) | |
3900 | { | |
3901 | /* Nothing. */ | |
3902 | } | |
3903 | else | |
3904 | ++count; | |
3905 | } | |
3906 | else | |
3907 | count += is_unique_ancestor_worker (base, iter, offset, | |
8af8e3bc PA |
3908 | valaddr, |
3909 | embedded_offset + this_offset, | |
3910 | address, val); | |
4e8f195d TT |
3911 | } |
3912 | ||
3913 | return count; | |
3914 | } | |
3915 | ||
3916 | /* Like is_ancestor, but only returns true if BASE is a unique base | |
3917 | class of the type of VAL. */ | |
3918 | ||
3919 | int | |
3920 | is_unique_ancestor (struct type *base, struct value *val) | |
3921 | { | |
3922 | int offset = -1; | |
3923 | ||
d0c97917 | 3924 | return is_unique_ancestor_worker (base, val->type (), &offset, |
efaf1ae0 | 3925 | val->contents_for_printing ().data (), |
391f8628 | 3926 | val->embedded_offset (), |
9feb2d07 | 3927 | val->address (), val) == 1; |
4e8f195d TT |
3928 | } |
3929 | ||
7ab4a236 TT |
3930 | /* See gdbtypes.h. */ |
3931 | ||
3932 | enum bfd_endian | |
3933 | type_byte_order (const struct type *type) | |
3934 | { | |
8ee511af | 3935 | bfd_endian byteorder = gdbarch_byte_order (type->arch ()); |
04f5bab2 | 3936 | if (type->endianity_is_not_default ()) |
7ab4a236 TT |
3937 | { |
3938 | if (byteorder == BFD_ENDIAN_BIG) | |
dda83cd7 | 3939 | return BFD_ENDIAN_LITTLE; |
7ab4a236 TT |
3940 | else |
3941 | { | |
3942 | gdb_assert (byteorder == BFD_ENDIAN_LITTLE); | |
3943 | return BFD_ENDIAN_BIG; | |
3944 | } | |
3945 | } | |
3946 | ||
3947 | return byteorder; | |
3948 | } | |
3949 | ||
0b35f123 LS |
3950 | /* See gdbtypes.h. */ |
3951 | ||
3952 | bool | |
3953 | is_nocall_function (const struct type *type) | |
3954 | { | |
78554598 TT |
3955 | if (type->code () != TYPE_CODE_FUNC && type->code () != TYPE_CODE_METHOD) |
3956 | return false; | |
0b35f123 LS |
3957 | |
3958 | return TYPE_CALLING_CONVENTION (type) == DW_CC_nocall; | |
3959 | } | |
3960 | ||
c906108c | 3961 | \f |
5212577a | 3962 | /* Overload resolution. */ |
c906108c | 3963 | |
6403aeea SW |
3964 | /* Return the sum of the rank of A with the rank of B. */ |
3965 | ||
3966 | struct rank | |
3967 | sum_ranks (struct rank a, struct rank b) | |
3968 | { | |
3969 | struct rank c; | |
3970 | c.rank = a.rank + b.rank; | |
a9d5ef47 | 3971 | c.subrank = a.subrank + b.subrank; |
6403aeea SW |
3972 | return c; |
3973 | } | |
3974 | ||
3975 | /* Compare rank A and B and return: | |
3976 | 0 if a = b | |
3977 | 1 if a is better than b | |
3978 | -1 if b is better than a. */ | |
3979 | ||
3980 | int | |
3981 | compare_ranks (struct rank a, struct rank b) | |
3982 | { | |
3983 | if (a.rank == b.rank) | |
a9d5ef47 SW |
3984 | { |
3985 | if (a.subrank == b.subrank) | |
3986 | return 0; | |
3987 | if (a.subrank < b.subrank) | |
3988 | return 1; | |
3989 | if (a.subrank > b.subrank) | |
3990 | return -1; | |
3991 | } | |
6403aeea SW |
3992 | |
3993 | if (a.rank < b.rank) | |
3994 | return 1; | |
3995 | ||
0963b4bd | 3996 | /* a.rank > b.rank */ |
6403aeea SW |
3997 | return -1; |
3998 | } | |
c5aa993b | 3999 | |
0963b4bd | 4000 | /* Functions for overload resolution begin here. */ |
c906108c SS |
4001 | |
4002 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
4003 | 0 => A and B are identical |
4004 | 1 => A and B are incomparable | |
4005 | 2 => A is better than B | |
4006 | 3 => A is worse than B */ | |
c906108c SS |
4007 | |
4008 | int | |
82ceee50 | 4009 | compare_badness (const badness_vector &a, const badness_vector &b) |
c906108c SS |
4010 | { |
4011 | int i; | |
4012 | int tmp; | |
ac03c8d8 TT |
4013 | /* Any positives in comparison? */ |
4014 | bool found_pos = false; | |
4015 | /* Any negatives in comparison? */ | |
4016 | bool found_neg = false; | |
4017 | /* Did A have any INVALID_CONVERSION entries. */ | |
4018 | bool a_invalid = false; | |
4019 | /* Did B have any INVALID_CONVERSION entries. */ | |
4020 | bool b_invalid = false; | |
c5aa993b | 4021 | |
82ceee50 PA |
4022 | /* differing sizes => incomparable */ |
4023 | if (a.size () != b.size ()) | |
c906108c SS |
4024 | return 1; |
4025 | ||
c5aa993b | 4026 | /* Subtract b from a */ |
82ceee50 | 4027 | for (i = 0; i < a.size (); i++) |
c906108c | 4028 | { |
82ceee50 | 4029 | tmp = compare_ranks (b[i], a[i]); |
c906108c | 4030 | if (tmp > 0) |
ac03c8d8 | 4031 | found_pos = true; |
c906108c | 4032 | else if (tmp < 0) |
ac03c8d8 TT |
4033 | found_neg = true; |
4034 | if (a[i].rank >= INVALID_CONVERSION) | |
4035 | a_invalid = true; | |
4036 | if (b[i].rank >= INVALID_CONVERSION) | |
4037 | b_invalid = true; | |
c906108c SS |
4038 | } |
4039 | ||
ac03c8d8 TT |
4040 | /* B will only be considered better than or incomparable to A if |
4041 | they both have invalid entries, or if neither does. That is, if | |
4042 | A has only valid entries, and B has an invalid entry, then A will | |
4043 | be considered better than B, even if B happens to be better for | |
4044 | some parameter. */ | |
4045 | if (a_invalid != b_invalid) | |
4046 | { | |
4047 | if (a_invalid) | |
4048 | return 3; /* A > B */ | |
4049 | return 2; /* A < B */ | |
4050 | } | |
4051 | else if (found_pos) | |
c906108c SS |
4052 | { |
4053 | if (found_neg) | |
c5aa993b | 4054 | return 1; /* incomparable */ |
c906108c | 4055 | else |
c5aa993b | 4056 | return 3; /* A > B */ |
c906108c | 4057 | } |
c5aa993b JM |
4058 | else |
4059 | /* no positives */ | |
c906108c SS |
4060 | { |
4061 | if (found_neg) | |
c5aa993b | 4062 | return 2; /* A < B */ |
c906108c | 4063 | else |
c5aa993b | 4064 | return 0; /* A == B */ |
c906108c SS |
4065 | } |
4066 | } | |
4067 | ||
6b1747cd | 4068 | /* Rank a function by comparing its parameter types (PARMS), to the |
82ceee50 PA |
4069 | types of an argument list (ARGS). Return the badness vector. This |
4070 | has ARGS.size() + 1 entries. */ | |
c906108c | 4071 | |
82ceee50 | 4072 | badness_vector |
6b1747cd | 4073 | rank_function (gdb::array_view<type *> parms, |
1d2f86b6 HD |
4074 | gdb::array_view<value *> args, |
4075 | bool varargs) | |
c906108c | 4076 | { |
82ceee50 PA |
4077 | /* add 1 for the length-match rank. */ |
4078 | badness_vector bv; | |
4079 | bv.reserve (1 + args.size ()); | |
c906108c SS |
4080 | |
4081 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 4082 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 4083 | |
c906108c | 4084 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
4085 | arguments and ellipsis parameter lists, we should consider those |
4086 | and rank the length-match more finely. */ | |
c906108c | 4087 | |
1d2f86b6 HD |
4088 | bv.push_back ((args.size () != parms.size () |
4089 | && (! varargs || args.size () < parms.size ())) | |
82ceee50 PA |
4090 | ? LENGTH_MISMATCH_BADNESS |
4091 | : EXACT_MATCH_BADNESS); | |
c906108c | 4092 | |
0963b4bd | 4093 | /* Now rank all the parameters of the candidate function. */ |
82ceee50 PA |
4094 | size_t min_len = std::min (parms.size (), args.size ()); |
4095 | ||
4096 | for (size_t i = 0; i < min_len; i++) | |
d0c97917 | 4097 | bv.push_back (rank_one_type (parms[i], args[i]->type (), |
82ceee50 | 4098 | args[i])); |
c906108c | 4099 | |
0963b4bd | 4100 | /* If more arguments than parameters, add dummy entries. */ |
82ceee50 | 4101 | for (size_t i = min_len; i < args.size (); i++) |
1d2f86b6 | 4102 | bv.push_back (varargs ? VARARG_BADNESS : TOO_FEW_PARAMS_BADNESS); |
c906108c SS |
4103 | |
4104 | return bv; | |
4105 | } | |
4106 | ||
973ccf8b DJ |
4107 | /* Compare the names of two integer types, assuming that any sign |
4108 | qualifiers have been checked already. We do it this way because | |
4109 | there may be an "int" in the name of one of the types. */ | |
4110 | ||
4111 | static int | |
4112 | integer_types_same_name_p (const char *first, const char *second) | |
4113 | { | |
4114 | int first_p, second_p; | |
4115 | ||
7ba81444 MS |
4116 | /* If both are shorts, return 1; if neither is a short, keep |
4117 | checking. */ | |
973ccf8b DJ |
4118 | first_p = (strstr (first, "short") != NULL); |
4119 | second_p = (strstr (second, "short") != NULL); | |
4120 | if (first_p && second_p) | |
4121 | return 1; | |
4122 | if (first_p || second_p) | |
4123 | return 0; | |
4124 | ||
4125 | /* Likewise for long. */ | |
4126 | first_p = (strstr (first, "long") != NULL); | |
4127 | second_p = (strstr (second, "long") != NULL); | |
4128 | if (first_p && second_p) | |
4129 | return 1; | |
4130 | if (first_p || second_p) | |
4131 | return 0; | |
4132 | ||
4133 | /* Likewise for char. */ | |
4134 | first_p = (strstr (first, "char") != NULL); | |
4135 | second_p = (strstr (second, "char") != NULL); | |
4136 | if (first_p && second_p) | |
4137 | return 1; | |
4138 | if (first_p || second_p) | |
4139 | return 0; | |
4140 | ||
4141 | /* They must both be ints. */ | |
4142 | return 1; | |
4143 | } | |
4144 | ||
894882e3 TT |
4145 | /* Compares type A to type B. Returns true if they represent the same |
4146 | type, false otherwise. */ | |
7062b0a0 | 4147 | |
894882e3 | 4148 | bool |
7062b0a0 SW |
4149 | types_equal (struct type *a, struct type *b) |
4150 | { | |
4151 | /* Identical type pointers. */ | |
4152 | /* However, this still doesn't catch all cases of same type for b | |
4153 | and a. The reason is that builtin types are different from | |
4154 | the same ones constructed from the object. */ | |
4155 | if (a == b) | |
894882e3 | 4156 | return true; |
7062b0a0 SW |
4157 | |
4158 | /* Resolve typedefs */ | |
78134374 | 4159 | if (a->code () == TYPE_CODE_TYPEDEF) |
7062b0a0 | 4160 | a = check_typedef (a); |
78134374 | 4161 | if (b->code () == TYPE_CODE_TYPEDEF) |
7062b0a0 SW |
4162 | b = check_typedef (b); |
4163 | ||
5e18990f AB |
4164 | /* Check if identical after resolving typedefs. */ |
4165 | if (a == b) | |
4166 | return true; | |
4167 | ||
7062b0a0 SW |
4168 | /* If after resolving typedefs a and b are not of the same type |
4169 | code then they are not equal. */ | |
78134374 | 4170 | if (a->code () != b->code ()) |
894882e3 | 4171 | return false; |
7062b0a0 SW |
4172 | |
4173 | /* If a and b are both pointers types or both reference types then | |
4174 | they are equal of the same type iff the objects they refer to are | |
4175 | of the same type. */ | |
78134374 SM |
4176 | if (a->code () == TYPE_CODE_PTR |
4177 | || a->code () == TYPE_CODE_REF) | |
27710edb SM |
4178 | return types_equal (a->target_type (), |
4179 | b->target_type ()); | |
7062b0a0 | 4180 | |
0963b4bd | 4181 | /* Well, damnit, if the names are exactly the same, I'll say they |
7062b0a0 SW |
4182 | are exactly the same. This happens when we generate method |
4183 | stubs. The types won't point to the same address, but they | |
0963b4bd | 4184 | really are the same. */ |
7062b0a0 | 4185 | |
7d93a1e0 SM |
4186 | if (a->name () && b->name () |
4187 | && strcmp (a->name (), b->name ()) == 0) | |
894882e3 | 4188 | return true; |
7062b0a0 | 4189 | |
9ce98649 TT |
4190 | /* Two function types are equal if their argument and return types |
4191 | are equal. */ | |
78134374 | 4192 | if (a->code () == TYPE_CODE_FUNC) |
9ce98649 TT |
4193 | { |
4194 | int i; | |
4195 | ||
1f704f76 | 4196 | if (a->num_fields () != b->num_fields ()) |
894882e3 | 4197 | return false; |
9ce98649 | 4198 | |
27710edb | 4199 | if (!types_equal (a->target_type (), b->target_type ())) |
894882e3 | 4200 | return false; |
9ce98649 | 4201 | |
1f704f76 | 4202 | for (i = 0; i < a->num_fields (); ++i) |
940da03e | 4203 | if (!types_equal (a->field (i).type (), b->field (i).type ())) |
894882e3 | 4204 | return false; |
9ce98649 | 4205 | |
894882e3 | 4206 | return true; |
9ce98649 TT |
4207 | } |
4208 | ||
105470cd HD |
4209 | /* Two array types are the same if they have the same element types |
4210 | and array bounds. */ | |
4211 | if (a->code () == TYPE_CODE_ARRAY) | |
4212 | { | |
4213 | if (!types_equal (a->target_type (), b->target_type ())) | |
4214 | return false; | |
4215 | ||
4216 | if (*a->bounds () != *b->bounds ()) | |
4217 | return false; | |
4218 | ||
4219 | return true; | |
4220 | } | |
4221 | ||
894882e3 | 4222 | return false; |
7062b0a0 | 4223 | } |
ca092b61 DE |
4224 | \f |
4225 | /* Deep comparison of types. */ | |
4226 | ||
4227 | /* An entry in the type-equality bcache. */ | |
4228 | ||
894882e3 | 4229 | struct type_equality_entry |
ca092b61 | 4230 | { |
894882e3 TT |
4231 | type_equality_entry (struct type *t1, struct type *t2) |
4232 | : type1 (t1), | |
4233 | type2 (t2) | |
4234 | { | |
4235 | } | |
ca092b61 | 4236 | |
894882e3 TT |
4237 | struct type *type1, *type2; |
4238 | }; | |
ca092b61 | 4239 | |
894882e3 TT |
4240 | /* A helper function to compare two strings. Returns true if they are |
4241 | the same, false otherwise. Handles NULLs properly. */ | |
ca092b61 | 4242 | |
894882e3 | 4243 | static bool |
ca092b61 DE |
4244 | compare_maybe_null_strings (const char *s, const char *t) |
4245 | { | |
894882e3 TT |
4246 | if (s == NULL || t == NULL) |
4247 | return s == t; | |
ca092b61 DE |
4248 | return strcmp (s, t) == 0; |
4249 | } | |
4250 | ||
4251 | /* A helper function for check_types_worklist that checks two types for | |
894882e3 TT |
4252 | "deep" equality. Returns true if the types are considered the |
4253 | same, false otherwise. */ | |
ca092b61 | 4254 | |
894882e3 | 4255 | static bool |
ca092b61 | 4256 | check_types_equal (struct type *type1, struct type *type2, |
894882e3 | 4257 | std::vector<type_equality_entry> *worklist) |
ca092b61 | 4258 | { |
f168693b SM |
4259 | type1 = check_typedef (type1); |
4260 | type2 = check_typedef (type2); | |
ca092b61 DE |
4261 | |
4262 | if (type1 == type2) | |
894882e3 | 4263 | return true; |
ca092b61 | 4264 | |
78134374 | 4265 | if (type1->code () != type2->code () |
df86565b | 4266 | || type1->length () != type2->length () |
c6d940a9 | 4267 | || type1->is_unsigned () != type2->is_unsigned () |
20ce4123 | 4268 | || type1->has_no_signedness () != type2->has_no_signedness () |
04f5bab2 | 4269 | || type1->endianity_is_not_default () != type2->endianity_is_not_default () |
a409645d | 4270 | || type1->has_varargs () != type2->has_varargs () |
bd63c870 | 4271 | || type1->is_vector () != type2->is_vector () |
ca092b61 | 4272 | || TYPE_NOTTEXT (type1) != TYPE_NOTTEXT (type2) |
10242f36 | 4273 | || type1->instance_flags () != type2->instance_flags () |
1f704f76 | 4274 | || type1->num_fields () != type2->num_fields ()) |
894882e3 | 4275 | return false; |
ca092b61 | 4276 | |
7d93a1e0 | 4277 | if (!compare_maybe_null_strings (type1->name (), type2->name ())) |
894882e3 | 4278 | return false; |
7d93a1e0 | 4279 | if (!compare_maybe_null_strings (type1->name (), type2->name ())) |
894882e3 | 4280 | return false; |
ca092b61 | 4281 | |
78134374 | 4282 | if (type1->code () == TYPE_CODE_RANGE) |
ca092b61 | 4283 | { |
599088e3 | 4284 | if (*type1->bounds () != *type2->bounds ()) |
894882e3 | 4285 | return false; |
ca092b61 DE |
4286 | } |
4287 | else | |
4288 | { | |
4289 | int i; | |
4290 | ||
1f704f76 | 4291 | for (i = 0; i < type1->num_fields (); ++i) |
ca092b61 | 4292 | { |
ceacbf6e SM |
4293 | const struct field *field1 = &type1->field (i); |
4294 | const struct field *field2 = &type2->field (i); | |
ca092b61 | 4295 | |
6c0f7493 | 4296 | if (field1->is_artificial () != field2->is_artificial () |
3be8c919 | 4297 | || field1->bitsize () != field2->bitsize () |
8d939e8e | 4298 | || field1->loc_kind () != field2->loc_kind ()) |
894882e3 | 4299 | return false; |
33d16dd9 | 4300 | if (!compare_maybe_null_strings (field1->name (), field2->name ())) |
894882e3 | 4301 | return false; |
8d939e8e | 4302 | switch (field1->loc_kind ()) |
ca092b61 DE |
4303 | { |
4304 | case FIELD_LOC_KIND_BITPOS: | |
3a543e21 | 4305 | if (field1->loc_bitpos () != field2->loc_bitpos ()) |
894882e3 | 4306 | return false; |
ca092b61 DE |
4307 | break; |
4308 | case FIELD_LOC_KIND_ENUMVAL: | |
5d2038e3 | 4309 | if (field1->loc_enumval () != field2->loc_enumval ()) |
894882e3 | 4310 | return false; |
fa639f55 HD |
4311 | /* Don't compare types of enum fields, because they don't |
4312 | have a type. */ | |
4313 | continue; | |
ca092b61 | 4314 | case FIELD_LOC_KIND_PHYSADDR: |
31a1516a | 4315 | if (field1->loc_physaddr () != field2->loc_physaddr ()) |
894882e3 | 4316 | return false; |
ca092b61 DE |
4317 | break; |
4318 | case FIELD_LOC_KIND_PHYSNAME: | |
16654a59 SM |
4319 | if (!compare_maybe_null_strings (field1->loc_physname (), |
4320 | field2->loc_physname ())) | |
894882e3 | 4321 | return false; |
ca092b61 DE |
4322 | break; |
4323 | case FIELD_LOC_KIND_DWARF_BLOCK: | |
4324 | { | |
4325 | struct dwarf2_locexpr_baton *block1, *block2; | |
4326 | ||
d8557c3d SM |
4327 | block1 = field1->loc_dwarf_block (); |
4328 | block2 = field2->loc_dwarf_block (); | |
ca092b61 DE |
4329 | if (block1->per_cu != block2->per_cu |
4330 | || block1->size != block2->size | |
4331 | || memcmp (block1->data, block2->data, block1->size) != 0) | |
894882e3 | 4332 | return false; |
ca092b61 DE |
4333 | } |
4334 | break; | |
4335 | default: | |
f34652de | 4336 | internal_error (_("Unsupported field kind " |
ca092b61 | 4337 | "%d by check_types_equal"), |
8d939e8e | 4338 | field1->loc_kind ()); |
ca092b61 DE |
4339 | } |
4340 | ||
b6cdac4b | 4341 | worklist->emplace_back (field1->type (), field2->type ()); |
ca092b61 DE |
4342 | } |
4343 | } | |
4344 | ||
27710edb | 4345 | if (type1->target_type () != NULL) |
ca092b61 | 4346 | { |
27710edb | 4347 | if (type2->target_type () == NULL) |
894882e3 | 4348 | return false; |
ca092b61 | 4349 | |
27710edb SM |
4350 | worklist->emplace_back (type1->target_type (), |
4351 | type2->target_type ()); | |
ca092b61 | 4352 | } |
27710edb | 4353 | else if (type2->target_type () != NULL) |
894882e3 | 4354 | return false; |
ca092b61 | 4355 | |
894882e3 | 4356 | return true; |
ca092b61 DE |
4357 | } |
4358 | ||
894882e3 TT |
4359 | /* Check types on a worklist for equality. Returns false if any pair |
4360 | is not equal, true if they are all considered equal. */ | |
ca092b61 | 4361 | |
894882e3 TT |
4362 | static bool |
4363 | check_types_worklist (std::vector<type_equality_entry> *worklist, | |
dfb65191 | 4364 | gdb::bcache *cache) |
ca092b61 | 4365 | { |
894882e3 | 4366 | while (!worklist->empty ()) |
ca092b61 | 4367 | { |
ef5e5b0b | 4368 | bool added; |
ca092b61 | 4369 | |
894882e3 TT |
4370 | struct type_equality_entry entry = std::move (worklist->back ()); |
4371 | worklist->pop_back (); | |
ca092b61 DE |
4372 | |
4373 | /* If the type pair has already been visited, we know it is | |
4374 | ok. */ | |
25629dfd | 4375 | cache->insert (&entry, sizeof (entry), &added); |
ca092b61 DE |
4376 | if (!added) |
4377 | continue; | |
4378 | ||
894882e3 TT |
4379 | if (!check_types_equal (entry.type1, entry.type2, worklist)) |
4380 | return false; | |
ca092b61 | 4381 | } |
7062b0a0 | 4382 | |
894882e3 | 4383 | return true; |
ca092b61 DE |
4384 | } |
4385 | ||
894882e3 TT |
4386 | /* Return true if types TYPE1 and TYPE2 are equal, as determined by a |
4387 | "deep comparison". Otherwise return false. */ | |
ca092b61 | 4388 | |
894882e3 | 4389 | bool |
ca092b61 DE |
4390 | types_deeply_equal (struct type *type1, struct type *type2) |
4391 | { | |
894882e3 | 4392 | std::vector<type_equality_entry> worklist; |
ca092b61 DE |
4393 | |
4394 | gdb_assert (type1 != NULL && type2 != NULL); | |
4395 | ||
4396 | /* Early exit for the simple case. */ | |
4397 | if (type1 == type2) | |
894882e3 | 4398 | return true; |
ca092b61 | 4399 | |
89806626 | 4400 | gdb::bcache cache; |
894882e3 | 4401 | worklist.emplace_back (type1, type2); |
25629dfd | 4402 | return check_types_worklist (&worklist, &cache); |
ca092b61 | 4403 | } |
3f2f83dd KB |
4404 | |
4405 | /* Allocated status of type TYPE. Return zero if type TYPE is allocated. | |
4406 | Otherwise return one. */ | |
4407 | ||
4408 | int | |
4409 | type_not_allocated (const struct type *type) | |
4410 | { | |
4411 | struct dynamic_prop *prop = TYPE_ALLOCATED_PROP (type); | |
4412 | ||
9c0fb734 | 4413 | return prop != nullptr && prop->is_constant () && prop->const_val () == 0; |
3f2f83dd KB |
4414 | } |
4415 | ||
4416 | /* Associated status of type TYPE. Return zero if type TYPE is associated. | |
4417 | Otherwise return one. */ | |
4418 | ||
4419 | int | |
4420 | type_not_associated (const struct type *type) | |
4421 | { | |
4422 | struct dynamic_prop *prop = TYPE_ASSOCIATED_PROP (type); | |
4423 | ||
9c0fb734 | 4424 | return prop != nullptr && prop->is_constant () && prop->const_val () == 0; |
3f2f83dd | 4425 | } |
9293fc63 SM |
4426 | |
4427 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_PTR. */ | |
4428 | ||
4429 | static struct rank | |
4430 | rank_one_type_parm_ptr (struct type *parm, struct type *arg, struct value *value) | |
4431 | { | |
4432 | struct rank rank = {0,0}; | |
4433 | ||
78134374 | 4434 | switch (arg->code ()) |
9293fc63 SM |
4435 | { |
4436 | case TYPE_CODE_PTR: | |
4437 | ||
4438 | /* Allowed pointer conversions are: | |
4439 | (a) pointer to void-pointer conversion. */ | |
27710edb | 4440 | if (parm->target_type ()->code () == TYPE_CODE_VOID) |
9293fc63 SM |
4441 | return VOID_PTR_CONVERSION_BADNESS; |
4442 | ||
4443 | /* (b) pointer to ancestor-pointer conversion. */ | |
27710edb SM |
4444 | rank.subrank = distance_to_ancestor (parm->target_type (), |
4445 | arg->target_type (), | |
9293fc63 SM |
4446 | 0); |
4447 | if (rank.subrank >= 0) | |
4448 | return sum_ranks (BASE_PTR_CONVERSION_BADNESS, rank); | |
4449 | ||
4450 | return INCOMPATIBLE_TYPE_BADNESS; | |
4451 | case TYPE_CODE_ARRAY: | |
4452 | { | |
27710edb SM |
4453 | struct type *t1 = parm->target_type (); |
4454 | struct type *t2 = arg->target_type (); | |
9293fc63 SM |
4455 | |
4456 | if (types_equal (t1, t2)) | |
4457 | { | |
4458 | /* Make sure they are CV equal. */ | |
4459 | if (TYPE_CONST (t1) != TYPE_CONST (t2)) | |
4460 | rank.subrank |= CV_CONVERSION_CONST; | |
4461 | if (TYPE_VOLATILE (t1) != TYPE_VOLATILE (t2)) | |
4462 | rank.subrank |= CV_CONVERSION_VOLATILE; | |
4463 | if (rank.subrank != 0) | |
4464 | return sum_ranks (CV_CONVERSION_BADNESS, rank); | |
4465 | return EXACT_MATCH_BADNESS; | |
4466 | } | |
4467 | return INCOMPATIBLE_TYPE_BADNESS; | |
4468 | } | |
4469 | case TYPE_CODE_FUNC: | |
27710edb | 4470 | return rank_one_type (parm->target_type (), arg, NULL); |
9293fc63 | 4471 | case TYPE_CODE_INT: |
d0c97917 | 4472 | if (value != NULL && value->type ()->code () == TYPE_CODE_INT) |
9293fc63 SM |
4473 | { |
4474 | if (value_as_long (value) == 0) | |
4475 | { | |
4476 | /* Null pointer conversion: allow it to be cast to a pointer. | |
4477 | [4.10.1 of C++ standard draft n3290] */ | |
4478 | return NULL_POINTER_CONVERSION_BADNESS; | |
4479 | } | |
4480 | else | |
4481 | { | |
4482 | /* If type checking is disabled, allow the conversion. */ | |
4483 | if (!strict_type_checking) | |
4484 | return NS_INTEGER_POINTER_CONVERSION_BADNESS; | |
4485 | } | |
4486 | } | |
d182e398 | 4487 | [[fallthrough]]; |
9293fc63 SM |
4488 | case TYPE_CODE_ENUM: |
4489 | case TYPE_CODE_FLAGS: | |
4490 | case TYPE_CODE_CHAR: | |
4491 | case TYPE_CODE_RANGE: | |
4492 | case TYPE_CODE_BOOL: | |
4493 | default: | |
4494 | return INCOMPATIBLE_TYPE_BADNESS; | |
4495 | } | |
4496 | } | |
4497 | ||
b9f4512f SM |
4498 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_ARRAY. */ |
4499 | ||
4500 | static struct rank | |
4501 | rank_one_type_parm_array (struct type *parm, struct type *arg, struct value *value) | |
4502 | { | |
78134374 | 4503 | switch (arg->code ()) |
b9f4512f SM |
4504 | { |
4505 | case TYPE_CODE_PTR: | |
4506 | case TYPE_CODE_ARRAY: | |
27710edb SM |
4507 | return rank_one_type (parm->target_type (), |
4508 | arg->target_type (), NULL); | |
b9f4512f SM |
4509 | default: |
4510 | return INCOMPATIBLE_TYPE_BADNESS; | |
4511 | } | |
4512 | } | |
4513 | ||
f1f832d6 SM |
4514 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_FUNC. */ |
4515 | ||
4516 | static struct rank | |
4517 | rank_one_type_parm_func (struct type *parm, struct type *arg, struct value *value) | |
4518 | { | |
78134374 | 4519 | switch (arg->code ()) |
f1f832d6 SM |
4520 | { |
4521 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
27710edb | 4522 | return rank_one_type (parm, arg->target_type (), NULL); |
f1f832d6 SM |
4523 | default: |
4524 | return INCOMPATIBLE_TYPE_BADNESS; | |
4525 | } | |
4526 | } | |
4527 | ||
34910087 SM |
4528 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_INT. */ |
4529 | ||
4530 | static struct rank | |
4531 | rank_one_type_parm_int (struct type *parm, struct type *arg, struct value *value) | |
4532 | { | |
78134374 | 4533 | switch (arg->code ()) |
34910087 SM |
4534 | { |
4535 | case TYPE_CODE_INT: | |
df86565b | 4536 | if (arg->length () == parm->length ()) |
34910087 SM |
4537 | { |
4538 | /* Deal with signed, unsigned, and plain chars and | |
4539 | signed and unsigned ints. */ | |
20ce4123 | 4540 | if (parm->has_no_signedness ()) |
34910087 SM |
4541 | { |
4542 | /* This case only for character types. */ | |
20ce4123 | 4543 | if (arg->has_no_signedness ()) |
34910087 SM |
4544 | return EXACT_MATCH_BADNESS; /* plain char -> plain char */ |
4545 | else /* signed/unsigned char -> plain char */ | |
4546 | return INTEGER_CONVERSION_BADNESS; | |
4547 | } | |
c6d940a9 | 4548 | else if (parm->is_unsigned ()) |
34910087 | 4549 | { |
c6d940a9 | 4550 | if (arg->is_unsigned ()) |
34910087 SM |
4551 | { |
4552 | /* unsigned int -> unsigned int, or | |
4553 | unsigned long -> unsigned long */ | |
7d93a1e0 SM |
4554 | if (integer_types_same_name_p (parm->name (), |
4555 | arg->name ())) | |
34910087 | 4556 | return EXACT_MATCH_BADNESS; |
7d93a1e0 | 4557 | else if (integer_types_same_name_p (arg->name (), |
34910087 | 4558 | "int") |
7d93a1e0 | 4559 | && integer_types_same_name_p (parm->name (), |
34910087 SM |
4560 | "long")) |
4561 | /* unsigned int -> unsigned long */ | |
4562 | return INTEGER_PROMOTION_BADNESS; | |
4563 | else | |
4564 | /* unsigned long -> unsigned int */ | |
4565 | return INTEGER_CONVERSION_BADNESS; | |
4566 | } | |
4567 | else | |
4568 | { | |
7d93a1e0 | 4569 | if (integer_types_same_name_p (arg->name (), |
34910087 | 4570 | "long") |
7d93a1e0 | 4571 | && integer_types_same_name_p (parm->name (), |
34910087 SM |
4572 | "int")) |
4573 | /* signed long -> unsigned int */ | |
4574 | return INTEGER_CONVERSION_BADNESS; | |
4575 | else | |
4576 | /* signed int/long -> unsigned int/long */ | |
4577 | return INTEGER_CONVERSION_BADNESS; | |
4578 | } | |
4579 | } | |
20ce4123 | 4580 | else if (!arg->has_no_signedness () && !arg->is_unsigned ()) |
34910087 | 4581 | { |
7d93a1e0 SM |
4582 | if (integer_types_same_name_p (parm->name (), |
4583 | arg->name ())) | |
34910087 | 4584 | return EXACT_MATCH_BADNESS; |
7d93a1e0 | 4585 | else if (integer_types_same_name_p (arg->name (), |
34910087 | 4586 | "int") |
7d93a1e0 | 4587 | && integer_types_same_name_p (parm->name (), |
34910087 SM |
4588 | "long")) |
4589 | return INTEGER_PROMOTION_BADNESS; | |
4590 | else | |
4591 | return INTEGER_CONVERSION_BADNESS; | |
4592 | } | |
4593 | else | |
4594 | return INTEGER_CONVERSION_BADNESS; | |
4595 | } | |
df86565b | 4596 | else if (arg->length () < parm->length ()) |
34910087 SM |
4597 | return INTEGER_PROMOTION_BADNESS; |
4598 | else | |
4599 | return INTEGER_CONVERSION_BADNESS; | |
4600 | case TYPE_CODE_ENUM: | |
4601 | case TYPE_CODE_FLAGS: | |
4602 | case TYPE_CODE_CHAR: | |
4603 | case TYPE_CODE_RANGE: | |
4604 | case TYPE_CODE_BOOL: | |
3bc440a2 | 4605 | if (arg->is_declared_class ()) |
34910087 SM |
4606 | return INCOMPATIBLE_TYPE_BADNESS; |
4607 | return INTEGER_PROMOTION_BADNESS; | |
4608 | case TYPE_CODE_FLT: | |
4609 | return INT_FLOAT_CONVERSION_BADNESS; | |
4610 | case TYPE_CODE_PTR: | |
4611 | return NS_POINTER_CONVERSION_BADNESS; | |
4612 | default: | |
4613 | return INCOMPATIBLE_TYPE_BADNESS; | |
4614 | } | |
4615 | } | |
4616 | ||
793cd1d2 SM |
4617 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_ENUM. */ |
4618 | ||
4619 | static struct rank | |
4620 | rank_one_type_parm_enum (struct type *parm, struct type *arg, struct value *value) | |
4621 | { | |
78134374 | 4622 | switch (arg->code ()) |
793cd1d2 SM |
4623 | { |
4624 | case TYPE_CODE_INT: | |
4625 | case TYPE_CODE_CHAR: | |
4626 | case TYPE_CODE_RANGE: | |
4627 | case TYPE_CODE_BOOL: | |
4628 | case TYPE_CODE_ENUM: | |
3bc440a2 | 4629 | if (parm->is_declared_class () || arg->is_declared_class ()) |
793cd1d2 SM |
4630 | return INCOMPATIBLE_TYPE_BADNESS; |
4631 | return INTEGER_CONVERSION_BADNESS; | |
4632 | case TYPE_CODE_FLT: | |
4633 | return INT_FLOAT_CONVERSION_BADNESS; | |
4634 | default: | |
4635 | return INCOMPATIBLE_TYPE_BADNESS; | |
4636 | } | |
4637 | } | |
4638 | ||
41ea4728 SM |
4639 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_CHAR. */ |
4640 | ||
4641 | static struct rank | |
4642 | rank_one_type_parm_char (struct type *parm, struct type *arg, struct value *value) | |
4643 | { | |
78134374 | 4644 | switch (arg->code ()) |
41ea4728 SM |
4645 | { |
4646 | case TYPE_CODE_RANGE: | |
4647 | case TYPE_CODE_BOOL: | |
4648 | case TYPE_CODE_ENUM: | |
3bc440a2 | 4649 | if (arg->is_declared_class ()) |
41ea4728 SM |
4650 | return INCOMPATIBLE_TYPE_BADNESS; |
4651 | return INTEGER_CONVERSION_BADNESS; | |
4652 | case TYPE_CODE_FLT: | |
4653 | return INT_FLOAT_CONVERSION_BADNESS; | |
4654 | case TYPE_CODE_INT: | |
df86565b | 4655 | if (arg->length () > parm->length ()) |
41ea4728 | 4656 | return INTEGER_CONVERSION_BADNESS; |
df86565b | 4657 | else if (arg->length () < parm->length ()) |
41ea4728 | 4658 | return INTEGER_PROMOTION_BADNESS; |
d182e398 | 4659 | [[fallthrough]]; |
41ea4728 SM |
4660 | case TYPE_CODE_CHAR: |
4661 | /* Deal with signed, unsigned, and plain chars for C++ and | |
4662 | with int cases falling through from previous case. */ | |
20ce4123 | 4663 | if (parm->has_no_signedness ()) |
41ea4728 | 4664 | { |
20ce4123 | 4665 | if (arg->has_no_signedness ()) |
41ea4728 SM |
4666 | return EXACT_MATCH_BADNESS; |
4667 | else | |
4668 | return INTEGER_CONVERSION_BADNESS; | |
4669 | } | |
c6d940a9 | 4670 | else if (parm->is_unsigned ()) |
41ea4728 | 4671 | { |
c6d940a9 | 4672 | if (arg->is_unsigned ()) |
41ea4728 SM |
4673 | return EXACT_MATCH_BADNESS; |
4674 | else | |
4675 | return INTEGER_PROMOTION_BADNESS; | |
4676 | } | |
20ce4123 | 4677 | else if (!arg->has_no_signedness () && !arg->is_unsigned ()) |
41ea4728 SM |
4678 | return EXACT_MATCH_BADNESS; |
4679 | else | |
4680 | return INTEGER_CONVERSION_BADNESS; | |
4681 | default: | |
4682 | return INCOMPATIBLE_TYPE_BADNESS; | |
4683 | } | |
4684 | } | |
4685 | ||
0dd322dc SM |
4686 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_RANGE. */ |
4687 | ||
4688 | static struct rank | |
4689 | rank_one_type_parm_range (struct type *parm, struct type *arg, struct value *value) | |
4690 | { | |
78134374 | 4691 | switch (arg->code ()) |
0dd322dc SM |
4692 | { |
4693 | case TYPE_CODE_INT: | |
4694 | case TYPE_CODE_CHAR: | |
4695 | case TYPE_CODE_RANGE: | |
4696 | case TYPE_CODE_BOOL: | |
4697 | case TYPE_CODE_ENUM: | |
4698 | return INTEGER_CONVERSION_BADNESS; | |
4699 | case TYPE_CODE_FLT: | |
4700 | return INT_FLOAT_CONVERSION_BADNESS; | |
4701 | default: | |
4702 | return INCOMPATIBLE_TYPE_BADNESS; | |
4703 | } | |
4704 | } | |
4705 | ||
2c509035 SM |
4706 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_BOOL. */ |
4707 | ||
4708 | static struct rank | |
4709 | rank_one_type_parm_bool (struct type *parm, struct type *arg, struct value *value) | |
4710 | { | |
78134374 | 4711 | switch (arg->code ()) |
2c509035 SM |
4712 | { |
4713 | /* n3290 draft, section 4.12.1 (conv.bool): | |
4714 | ||
4715 | "A prvalue of arithmetic, unscoped enumeration, pointer, or | |
4716 | pointer to member type can be converted to a prvalue of type | |
4717 | bool. A zero value, null pointer value, or null member pointer | |
4718 | value is converted to false; any other value is converted to | |
4719 | true. A prvalue of type std::nullptr_t can be converted to a | |
4720 | prvalue of type bool; the resulting value is false." */ | |
4721 | case TYPE_CODE_INT: | |
4722 | case TYPE_CODE_CHAR: | |
4723 | case TYPE_CODE_ENUM: | |
4724 | case TYPE_CODE_FLT: | |
4725 | case TYPE_CODE_MEMBERPTR: | |
4726 | case TYPE_CODE_PTR: | |
4727 | return BOOL_CONVERSION_BADNESS; | |
4728 | case TYPE_CODE_RANGE: | |
4729 | return INCOMPATIBLE_TYPE_BADNESS; | |
4730 | case TYPE_CODE_BOOL: | |
4731 | return EXACT_MATCH_BADNESS; | |
4732 | default: | |
4733 | return INCOMPATIBLE_TYPE_BADNESS; | |
4734 | } | |
4735 | } | |
4736 | ||
7f17b20d SM |
4737 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_FLOAT. */ |
4738 | ||
4739 | static struct rank | |
4740 | rank_one_type_parm_float (struct type *parm, struct type *arg, struct value *value) | |
4741 | { | |
78134374 | 4742 | switch (arg->code ()) |
7f17b20d SM |
4743 | { |
4744 | case TYPE_CODE_FLT: | |
df86565b | 4745 | if (arg->length () < parm->length ()) |
7f17b20d | 4746 | return FLOAT_PROMOTION_BADNESS; |
df86565b | 4747 | else if (arg->length () == parm->length ()) |
7f17b20d SM |
4748 | return EXACT_MATCH_BADNESS; |
4749 | else | |
4750 | return FLOAT_CONVERSION_BADNESS; | |
4751 | case TYPE_CODE_INT: | |
4752 | case TYPE_CODE_BOOL: | |
4753 | case TYPE_CODE_ENUM: | |
4754 | case TYPE_CODE_RANGE: | |
4755 | case TYPE_CODE_CHAR: | |
4756 | return INT_FLOAT_CONVERSION_BADNESS; | |
4757 | default: | |
4758 | return INCOMPATIBLE_TYPE_BADNESS; | |
4759 | } | |
4760 | } | |
4761 | ||
2598a94b SM |
4762 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_COMPLEX. */ |
4763 | ||
4764 | static struct rank | |
4765 | rank_one_type_parm_complex (struct type *parm, struct type *arg, struct value *value) | |
4766 | { | |
78134374 | 4767 | switch (arg->code ()) |
2598a94b SM |
4768 | { /* Strictly not needed for C++, but... */ |
4769 | case TYPE_CODE_FLT: | |
4770 | return FLOAT_PROMOTION_BADNESS; | |
4771 | case TYPE_CODE_COMPLEX: | |
4772 | return EXACT_MATCH_BADNESS; | |
4773 | default: | |
4774 | return INCOMPATIBLE_TYPE_BADNESS; | |
4775 | } | |
4776 | } | |
4777 | ||
595f96a9 SM |
4778 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_STRUCT. */ |
4779 | ||
4780 | static struct rank | |
4781 | rank_one_type_parm_struct (struct type *parm, struct type *arg, struct value *value) | |
4782 | { | |
4783 | struct rank rank = {0, 0}; | |
4784 | ||
78134374 | 4785 | switch (arg->code ()) |
595f96a9 SM |
4786 | { |
4787 | case TYPE_CODE_STRUCT: | |
4788 | /* Check for derivation */ | |
4789 | rank.subrank = distance_to_ancestor (parm, arg, 0); | |
4790 | if (rank.subrank >= 0) | |
4791 | return sum_ranks (BASE_CONVERSION_BADNESS, rank); | |
d182e398 | 4792 | [[fallthrough]]; |
595f96a9 SM |
4793 | default: |
4794 | return INCOMPATIBLE_TYPE_BADNESS; | |
4795 | } | |
4796 | } | |
4797 | ||
f09ce22d SM |
4798 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_SET. */ |
4799 | ||
4800 | static struct rank | |
4801 | rank_one_type_parm_set (struct type *parm, struct type *arg, struct value *value) | |
4802 | { | |
78134374 | 4803 | switch (arg->code ()) |
f09ce22d SM |
4804 | { |
4805 | /* Not in C++ */ | |
4806 | case TYPE_CODE_SET: | |
940da03e SM |
4807 | return rank_one_type (parm->field (0).type (), |
4808 | arg->field (0).type (), NULL); | |
f09ce22d SM |
4809 | default: |
4810 | return INCOMPATIBLE_TYPE_BADNESS; | |
4811 | } | |
4812 | } | |
4813 | ||
c906108c SS |
4814 | /* Compare one type (PARM) for compatibility with another (ARG). |
4815 | * PARM is intended to be the parameter type of a function; and | |
4816 | * ARG is the supplied argument's type. This function tests if | |
4817 | * the latter can be converted to the former. | |
da096638 | 4818 | * VALUE is the argument's value or NULL if none (or called recursively) |
c906108c SS |
4819 | * |
4820 | * Return 0 if they are identical types; | |
4821 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 | 4822 | * PARM is to ARG. The higher the return value, the worse the match. |
ac03c8d8 TT |
4823 | * Generally the "bad" conversions are all uniformly assigned |
4824 | * INVALID_CONVERSION. */ | |
c906108c | 4825 | |
6403aeea | 4826 | struct rank |
da096638 | 4827 | rank_one_type (struct type *parm, struct type *arg, struct value *value) |
c906108c | 4828 | { |
a9d5ef47 | 4829 | struct rank rank = {0,0}; |
7062b0a0 | 4830 | |
c906108c | 4831 | /* Resolve typedefs */ |
78134374 | 4832 | if (parm->code () == TYPE_CODE_TYPEDEF) |
c906108c | 4833 | parm = check_typedef (parm); |
78134374 | 4834 | if (arg->code () == TYPE_CODE_TYPEDEF) |
c906108c SS |
4835 | arg = check_typedef (arg); |
4836 | ||
e15c3eb4 | 4837 | if (TYPE_IS_REFERENCE (parm) && value != NULL) |
15c0a2a9 | 4838 | { |
736355f2 | 4839 | if (value->lval () == not_lval) |
e15c3eb4 KS |
4840 | { |
4841 | /* Rvalues should preferably bind to rvalue references or const | |
4842 | lvalue references. */ | |
78134374 | 4843 | if (parm->code () == TYPE_CODE_RVALUE_REF) |
e15c3eb4 | 4844 | rank.subrank = REFERENCE_CONVERSION_RVALUE; |
27710edb | 4845 | else if (TYPE_CONST (parm->target_type ())) |
e15c3eb4 KS |
4846 | rank.subrank = REFERENCE_CONVERSION_CONST_LVALUE; |
4847 | else | |
4848 | return INCOMPATIBLE_TYPE_BADNESS; | |
4849 | return sum_ranks (rank, REFERENCE_CONVERSION_BADNESS); | |
4850 | } | |
4851 | else | |
4852 | { | |
330f1d38 | 4853 | /* It's illegal to pass an lvalue as an rvalue. */ |
78134374 | 4854 | if (parm->code () == TYPE_CODE_RVALUE_REF) |
330f1d38 | 4855 | return INCOMPATIBLE_TYPE_BADNESS; |
e15c3eb4 | 4856 | } |
15c0a2a9 AV |
4857 | } |
4858 | ||
4859 | if (types_equal (parm, arg)) | |
15c0a2a9 | 4860 | { |
e15c3eb4 KS |
4861 | struct type *t1 = parm; |
4862 | struct type *t2 = arg; | |
15c0a2a9 | 4863 | |
e15c3eb4 | 4864 | /* For pointers and references, compare target type. */ |
809f3be1 | 4865 | if (parm->is_pointer_or_reference ()) |
e15c3eb4 | 4866 | { |
27710edb SM |
4867 | t1 = parm->target_type (); |
4868 | t2 = arg->target_type (); | |
e15c3eb4 | 4869 | } |
15c0a2a9 | 4870 | |
e15c3eb4 KS |
4871 | /* Make sure they are CV equal, too. */ |
4872 | if (TYPE_CONST (t1) != TYPE_CONST (t2)) | |
4873 | rank.subrank |= CV_CONVERSION_CONST; | |
4874 | if (TYPE_VOLATILE (t1) != TYPE_VOLATILE (t2)) | |
4875 | rank.subrank |= CV_CONVERSION_VOLATILE; | |
4876 | if (rank.subrank != 0) | |
4877 | return sum_ranks (CV_CONVERSION_BADNESS, rank); | |
4878 | return EXACT_MATCH_BADNESS; | |
15c0a2a9 AV |
4879 | } |
4880 | ||
db577aea | 4881 | /* See through references, since we can almost make non-references |
7ba81444 | 4882 | references. */ |
aa006118 AV |
4883 | |
4884 | if (TYPE_IS_REFERENCE (arg)) | |
27710edb | 4885 | return (sum_ranks (rank_one_type (parm, arg->target_type (), NULL), |
dda83cd7 | 4886 | REFERENCE_SEE_THROUGH_BADNESS)); |
aa006118 | 4887 | if (TYPE_IS_REFERENCE (parm)) |
27710edb | 4888 | return (sum_ranks (rank_one_type (parm->target_type (), arg, NULL), |
dda83cd7 | 4889 | REFERENCE_SEE_THROUGH_BADNESS)); |
5d161b24 | 4890 | if (overload_debug) |
01add95b SM |
4891 | { |
4892 | /* Debugging only. */ | |
6cb06a8c TT |
4893 | gdb_printf (gdb_stderr, |
4894 | "------ Arg is %s [%d], parm is %s [%d]\n", | |
4895 | arg->name (), arg->code (), | |
4896 | parm->name (), parm->code ()); | |
01add95b | 4897 | } |
c906108c | 4898 | |
0963b4bd | 4899 | /* x -> y means arg of type x being supplied for parameter of type y. */ |
c906108c | 4900 | |
78134374 | 4901 | switch (parm->code ()) |
c906108c | 4902 | { |
c5aa993b | 4903 | case TYPE_CODE_PTR: |
9293fc63 | 4904 | return rank_one_type_parm_ptr (parm, arg, value); |
c5aa993b | 4905 | case TYPE_CODE_ARRAY: |
b9f4512f | 4906 | return rank_one_type_parm_array (parm, arg, value); |
c5aa993b | 4907 | case TYPE_CODE_FUNC: |
f1f832d6 | 4908 | return rank_one_type_parm_func (parm, arg, value); |
c5aa993b | 4909 | case TYPE_CODE_INT: |
34910087 | 4910 | return rank_one_type_parm_int (parm, arg, value); |
c5aa993b | 4911 | case TYPE_CODE_ENUM: |
793cd1d2 | 4912 | return rank_one_type_parm_enum (parm, arg, value); |
c5aa993b | 4913 | case TYPE_CODE_CHAR: |
41ea4728 | 4914 | return rank_one_type_parm_char (parm, arg, value); |
c5aa993b | 4915 | case TYPE_CODE_RANGE: |
0dd322dc | 4916 | return rank_one_type_parm_range (parm, arg, value); |
c5aa993b | 4917 | case TYPE_CODE_BOOL: |
2c509035 | 4918 | return rank_one_type_parm_bool (parm, arg, value); |
c5aa993b | 4919 | case TYPE_CODE_FLT: |
7f17b20d | 4920 | return rank_one_type_parm_float (parm, arg, value); |
c5aa993b | 4921 | case TYPE_CODE_COMPLEX: |
2598a94b | 4922 | return rank_one_type_parm_complex (parm, arg, value); |
c5aa993b | 4923 | case TYPE_CODE_STRUCT: |
595f96a9 | 4924 | return rank_one_type_parm_struct (parm, arg, value); |
c5aa993b | 4925 | case TYPE_CODE_SET: |
f09ce22d | 4926 | return rank_one_type_parm_set (parm, arg, value); |
c5aa993b JM |
4927 | default: |
4928 | return INCOMPATIBLE_TYPE_BADNESS; | |
78134374 | 4929 | } /* switch (arg->code ()) */ |
c906108c SS |
4930 | } |
4931 | ||
0963b4bd | 4932 | /* End of functions for overload resolution. */ |
5212577a | 4933 | \f |
c906108c | 4934 | |
ad2f7632 | 4935 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
4936 | include it since we may get into a infinitely recursive |
4937 | situation. */ | |
c906108c SS |
4938 | |
4939 | static void | |
4c9e8482 | 4940 | print_args (struct field *args, int nargs, int spaces) |
c906108c SS |
4941 | { |
4942 | if (args != NULL) | |
4943 | { | |
ad2f7632 DJ |
4944 | int i; |
4945 | ||
4946 | for (i = 0; i < nargs; i++) | |
4c9e8482 | 4947 | { |
6cb06a8c | 4948 | gdb_printf |
d3fd12df SM |
4949 | ("%*s[%d] name '%s'\n", spaces, "", i, |
4950 | args[i].name () != NULL ? args[i].name () : "<NULL>"); | |
5d14b6e5 | 4951 | recursive_dump_type (args[i].type (), spaces + 2); |
4c9e8482 | 4952 | } |
c906108c SS |
4953 | } |
4954 | } | |
4955 | ||
4956 | static void | |
fba45db2 | 4957 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
4958 | { |
4959 | int method_idx; | |
4960 | int overload_idx; | |
4961 | struct fn_field *f; | |
4962 | ||
6cb06a8c TT |
4963 | gdb_printf ("%*sfn_fieldlists %s\n", spaces, "", |
4964 | host_address_to_string (TYPE_FN_FIELDLISTS (type))); | |
c906108c SS |
4965 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) |
4966 | { | |
4967 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
6cb06a8c | 4968 | gdb_printf |
64b7cc50 TT |
4969 | ("%*s[%d] name '%s' (%s) length %d\n", spaces + 2, "", |
4970 | method_idx, | |
4971 | TYPE_FN_FIELDLIST_NAME (type, method_idx), | |
4972 | host_address_to_string (TYPE_FN_FIELDLIST_NAME (type, method_idx)), | |
4973 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); | |
c906108c SS |
4974 | for (overload_idx = 0; |
4975 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
4976 | overload_idx++) | |
4977 | { | |
6cb06a8c | 4978 | gdb_printf |
64b7cc50 TT |
4979 | ("%*s[%d] physname '%s' (%s)\n", |
4980 | spaces + 4, "", overload_idx, | |
4981 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx), | |
4982 | host_address_to_string (TYPE_FN_FIELD_PHYSNAME (f, | |
4983 | overload_idx))); | |
6cb06a8c | 4984 | gdb_printf |
64b7cc50 TT |
4985 | ("%*stype %s\n", spaces + 8, "", |
4986 | host_address_to_string (TYPE_FN_FIELD_TYPE (f, overload_idx))); | |
c906108c SS |
4987 | |
4988 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
4989 | spaces + 8 + 2); | |
4990 | ||
6cb06a8c | 4991 | gdb_printf |
64b7cc50 TT |
4992 | ("%*sargs %s\n", spaces + 8, "", |
4993 | host_address_to_string (TYPE_FN_FIELD_ARGS (f, overload_idx))); | |
4c9e8482 | 4994 | print_args (TYPE_FN_FIELD_ARGS (f, overload_idx), |
1f704f76 | 4995 | TYPE_FN_FIELD_TYPE (f, overload_idx)->num_fields (), |
4c9e8482 | 4996 | spaces + 8 + 2); |
6cb06a8c | 4997 | gdb_printf |
64b7cc50 TT |
4998 | ("%*sfcontext %s\n", spaces + 8, "", |
4999 | host_address_to_string (TYPE_FN_FIELD_FCONTEXT (f, | |
5000 | overload_idx))); | |
c906108c | 5001 | |
6cb06a8c TT |
5002 | gdb_printf ("%*sis_const %d\n", spaces + 8, "", |
5003 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
5004 | gdb_printf ("%*sis_volatile %d\n", spaces + 8, "", | |
5005 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
5006 | gdb_printf ("%*sis_private %d\n", spaces + 8, "", | |
5007 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
5008 | gdb_printf ("%*sis_protected %d\n", spaces + 8, "", | |
5009 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
5010 | gdb_printf ("%*sis_stub %d\n", spaces + 8, "", | |
5011 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
5012 | gdb_printf ("%*sdefaulted %d\n", spaces + 8, "", | |
5013 | TYPE_FN_FIELD_DEFAULTED (f, overload_idx)); | |
5014 | gdb_printf ("%*sis_deleted %d\n", spaces + 8, "", | |
5015 | TYPE_FN_FIELD_DELETED (f, overload_idx)); | |
5016 | gdb_printf ("%*svoffset %u\n", spaces + 8, "", | |
5017 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
c906108c SS |
5018 | } |
5019 | } | |
5020 | } | |
5021 | ||
5022 | static void | |
fba45db2 | 5023 | print_cplus_stuff (struct type *type, int spaces) |
c906108c | 5024 | { |
6cb06a8c TT |
5025 | gdb_printf ("%*svptr_fieldno %d\n", spaces, "", |
5026 | TYPE_VPTR_FIELDNO (type)); | |
5027 | gdb_printf ("%*svptr_basetype %s\n", spaces, "", | |
5028 | host_address_to_string (TYPE_VPTR_BASETYPE (type))); | |
ae6ae975 DE |
5029 | if (TYPE_VPTR_BASETYPE (type) != NULL) |
5030 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
5031 | ||
6cb06a8c TT |
5032 | gdb_printf ("%*sn_baseclasses %d\n", spaces, "", |
5033 | TYPE_N_BASECLASSES (type)); | |
5034 | gdb_printf ("%*snfn_fields %d\n", spaces, "", | |
5035 | TYPE_NFN_FIELDS (type)); | |
c906108c SS |
5036 | if (TYPE_NFN_FIELDS (type) > 0) |
5037 | { | |
5038 | dump_fn_fieldlists (type, spaces); | |
5039 | } | |
e35000a7 | 5040 | |
6cb06a8c TT |
5041 | gdb_printf ("%*scalling_convention %d\n", spaces, "", |
5042 | TYPE_CPLUS_CALLING_CONVENTION (type)); | |
c906108c SS |
5043 | } |
5044 | ||
b4ba55a1 JB |
5045 | /* Print the contents of the TYPE's type_specific union, assuming that |
5046 | its type-specific kind is TYPE_SPECIFIC_GNAT_STUFF. */ | |
5047 | ||
5048 | static void | |
5049 | print_gnat_stuff (struct type *type, int spaces) | |
5050 | { | |
5051 | struct type *descriptive_type = TYPE_DESCRIPTIVE_TYPE (type); | |
5052 | ||
8cd00c59 | 5053 | if (descriptive_type == NULL) |
6cb06a8c | 5054 | gdb_printf ("%*sno descriptive type\n", spaces + 2, ""); |
8cd00c59 PMR |
5055 | else |
5056 | { | |
6cb06a8c | 5057 | gdb_printf ("%*sdescriptive type\n", spaces + 2, ""); |
8cd00c59 PMR |
5058 | recursive_dump_type (descriptive_type, spaces + 4); |
5059 | } | |
b4ba55a1 JB |
5060 | } |
5061 | ||
09584414 JB |
5062 | /* Print the contents of the TYPE's type_specific union, assuming that |
5063 | its type-specific kind is TYPE_SPECIFIC_FIXED_POINT. */ | |
5064 | ||
5065 | static void | |
5066 | print_fixed_point_type_info (struct type *type, int spaces) | |
5067 | { | |
6cb06a8c TT |
5068 | gdb_printf ("%*sscaling factor: %s\n", spaces + 2, "", |
5069 | type->fixed_point_scaling_factor ().str ().c_str ()); | |
09584414 JB |
5070 | } |
5071 | ||
c906108c SS |
5072 | static struct obstack dont_print_type_obstack; |
5073 | ||
53d5a2a5 TV |
5074 | /* Print the dynamic_prop PROP. */ |
5075 | ||
5076 | static void | |
5077 | dump_dynamic_prop (dynamic_prop const& prop) | |
5078 | { | |
5079 | switch (prop.kind ()) | |
5080 | { | |
5081 | case PROP_CONST: | |
6cb06a8c | 5082 | gdb_printf ("%s", plongest (prop.const_val ())); |
53d5a2a5 TV |
5083 | break; |
5084 | case PROP_UNDEFINED: | |
6cb06a8c | 5085 | gdb_printf ("(undefined)"); |
53d5a2a5 TV |
5086 | break; |
5087 | case PROP_LOCEXPR: | |
5088 | case PROP_LOCLIST: | |
6cb06a8c | 5089 | gdb_printf ("(dynamic)"); |
53d5a2a5 TV |
5090 | break; |
5091 | default: | |
5092 | gdb_assert_not_reached ("unhandled prop kind"); | |
5093 | break; | |
5094 | } | |
5095 | } | |
5096 | ||
e626733c TT |
5097 | /* Return a string that represents a type code. */ |
5098 | static const char * | |
5099 | type_code_name (type_code code) | |
5100 | { | |
5101 | switch (code) | |
5102 | { | |
5103 | #define OP(X) case X: return # X; | |
5104 | #include "type-codes.def" | |
5105 | #undef OP | |
5106 | ||
5107 | case TYPE_CODE_UNDEF: | |
5108 | return "TYPE_CODE_UNDEF"; | |
5109 | } | |
5110 | ||
5111 | gdb_assert_not_reached ("unhandled type_code"); | |
5112 | } | |
5113 | ||
c906108c | 5114 | void |
fba45db2 | 5115 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
5116 | { |
5117 | int idx; | |
5118 | ||
5119 | if (spaces == 0) | |
5120 | obstack_begin (&dont_print_type_obstack, 0); | |
5121 | ||
1f704f76 | 5122 | if (type->num_fields () > 0 |
b4ba55a1 | 5123 | || (HAVE_CPLUS_STRUCT (type) && TYPE_NFN_FIELDS (type) > 0)) |
c906108c SS |
5124 | { |
5125 | struct type **first_dont_print | |
7ba81444 | 5126 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 5127 | |
7ba81444 MS |
5128 | int i = (struct type **) |
5129 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
5130 | |
5131 | while (--i >= 0) | |
5132 | { | |
5133 | if (type == first_dont_print[i]) | |
5134 | { | |
6cb06a8c TT |
5135 | gdb_printf ("%*stype node %s", spaces, "", |
5136 | host_address_to_string (type)); | |
5137 | gdb_printf (_(" <same as already seen type>\n")); | |
c906108c SS |
5138 | return; |
5139 | } | |
5140 | } | |
5141 | ||
5142 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
5143 | } | |
5144 | ||
6cb06a8c TT |
5145 | gdb_printf ("%*stype node %s\n", spaces, "", |
5146 | host_address_to_string (type)); | |
5147 | gdb_printf ("%*sname '%s' (%s)\n", spaces, "", | |
5148 | type->name () ? type->name () : "<NULL>", | |
5149 | host_address_to_string (type->name ())); | |
5150 | gdb_printf ("%*scode 0x%x ", spaces, "", type->code ()); | |
e626733c | 5151 | gdb_printf ("(%s)", type_code_name (type->code ())); |
0426ad51 | 5152 | gdb_puts ("\n"); |
6cb06a8c | 5153 | gdb_printf ("%*slength %s\n", spaces, "", |
df86565b | 5154 | pulongest (type->length ())); |
30625020 | 5155 | if (type->is_objfile_owned ()) |
6cb06a8c TT |
5156 | gdb_printf ("%*sobjfile %s\n", spaces, "", |
5157 | host_address_to_string (type->objfile_owner ())); | |
e9bb382b | 5158 | else |
6cb06a8c TT |
5159 | gdb_printf ("%*sgdbarch %s\n", spaces, "", |
5160 | host_address_to_string (type->arch_owner ())); | |
5161 | gdb_printf ("%*starget_type %s\n", spaces, "", | |
27710edb SM |
5162 | host_address_to_string (type->target_type ())); |
5163 | if (type->target_type () != NULL) | |
c906108c | 5164 | { |
27710edb | 5165 | recursive_dump_type (type->target_type (), spaces + 2); |
c906108c | 5166 | } |
6cb06a8c TT |
5167 | gdb_printf ("%*spointer_type %s\n", spaces, "", |
5168 | host_address_to_string (TYPE_POINTER_TYPE (type))); | |
5169 | gdb_printf ("%*sreference_type %s\n", spaces, "", | |
5170 | host_address_to_string (TYPE_REFERENCE_TYPE (type))); | |
5171 | gdb_printf ("%*stype_chain %s\n", spaces, "", | |
5172 | host_address_to_string (TYPE_CHAIN (type))); | |
5173 | gdb_printf ("%*sinstance_flags 0x%x", spaces, "", | |
5174 | (unsigned) type->instance_flags ()); | |
2fdde8f8 DJ |
5175 | if (TYPE_CONST (type)) |
5176 | { | |
0426ad51 | 5177 | gdb_puts (" TYPE_CONST"); |
2fdde8f8 DJ |
5178 | } |
5179 | if (TYPE_VOLATILE (type)) | |
5180 | { | |
0426ad51 | 5181 | gdb_puts (" TYPE_VOLATILE"); |
2fdde8f8 DJ |
5182 | } |
5183 | if (TYPE_CODE_SPACE (type)) | |
5184 | { | |
0426ad51 | 5185 | gdb_puts (" TYPE_CODE_SPACE"); |
2fdde8f8 DJ |
5186 | } |
5187 | if (TYPE_DATA_SPACE (type)) | |
5188 | { | |
0426ad51 | 5189 | gdb_puts (" TYPE_DATA_SPACE"); |
2fdde8f8 | 5190 | } |
8b2dbe47 KB |
5191 | if (TYPE_ADDRESS_CLASS_1 (type)) |
5192 | { | |
0426ad51 | 5193 | gdb_puts (" TYPE_ADDRESS_CLASS_1"); |
8b2dbe47 KB |
5194 | } |
5195 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
5196 | { | |
0426ad51 | 5197 | gdb_puts (" TYPE_ADDRESS_CLASS_2"); |
8b2dbe47 | 5198 | } |
06d66ee9 TT |
5199 | if (TYPE_RESTRICT (type)) |
5200 | { | |
0426ad51 | 5201 | gdb_puts (" TYPE_RESTRICT"); |
06d66ee9 | 5202 | } |
a2c2acaf MW |
5203 | if (TYPE_ATOMIC (type)) |
5204 | { | |
0426ad51 | 5205 | gdb_puts (" TYPE_ATOMIC"); |
a2c2acaf | 5206 | } |
0426ad51 | 5207 | gdb_puts ("\n"); |
876cecd0 | 5208 | |
6cb06a8c | 5209 | gdb_printf ("%*sflags", spaces, ""); |
c6d940a9 | 5210 | if (type->is_unsigned ()) |
c906108c | 5211 | { |
0426ad51 | 5212 | gdb_puts (" TYPE_UNSIGNED"); |
c906108c | 5213 | } |
20ce4123 | 5214 | if (type->has_no_signedness ()) |
762a036f | 5215 | { |
0426ad51 | 5216 | gdb_puts (" TYPE_NOSIGN"); |
762a036f | 5217 | } |
04f5bab2 | 5218 | if (type->endianity_is_not_default ()) |
34877895 | 5219 | { |
0426ad51 | 5220 | gdb_puts (" TYPE_ENDIANITY_NOT_DEFAULT"); |
34877895 | 5221 | } |
e46d3488 | 5222 | if (type->is_stub ()) |
c906108c | 5223 | { |
0426ad51 | 5224 | gdb_puts (" TYPE_STUB"); |
c906108c | 5225 | } |
d2183968 | 5226 | if (type->target_is_stub ()) |
762a036f | 5227 | { |
0426ad51 | 5228 | gdb_puts (" TYPE_TARGET_STUB"); |
762a036f | 5229 | } |
7f9f399b | 5230 | if (type->is_prototyped ()) |
762a036f | 5231 | { |
0426ad51 | 5232 | gdb_puts (" TYPE_PROTOTYPED"); |
762a036f | 5233 | } |
a409645d | 5234 | if (type->has_varargs ()) |
762a036f | 5235 | { |
0426ad51 | 5236 | gdb_puts (" TYPE_VARARGS"); |
762a036f | 5237 | } |
f5f8a009 EZ |
5238 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
5239 | an attribute for the array type, which tells whether or not we | |
5240 | have a vector, instead of a regular array. */ | |
bd63c870 | 5241 | if (type->is_vector ()) |
f5f8a009 | 5242 | { |
0426ad51 | 5243 | gdb_puts (" TYPE_VECTOR"); |
f5f8a009 | 5244 | } |
22c4c60c | 5245 | if (type->is_fixed_instance ()) |
876cecd0 | 5246 | { |
0426ad51 | 5247 | gdb_puts (" TYPE_FIXED_INSTANCE"); |
876cecd0 | 5248 | } |
3f46044c | 5249 | if (type->stub_is_supported ()) |
876cecd0 | 5250 | { |
0426ad51 | 5251 | gdb_puts (" TYPE_STUB_SUPPORTED"); |
876cecd0 TT |
5252 | } |
5253 | if (TYPE_NOTTEXT (type)) | |
5254 | { | |
0426ad51 | 5255 | gdb_puts (" TYPE_NOTTEXT"); |
876cecd0 | 5256 | } |
0426ad51 | 5257 | gdb_puts ("\n"); |
6cb06a8c | 5258 | gdb_printf ("%*snfields %d ", spaces, "", type->num_fields ()); |
5ba3b20e AB |
5259 | if (TYPE_ASSOCIATED_PROP (type) != nullptr |
5260 | || TYPE_ALLOCATED_PROP (type) != nullptr) | |
5261 | { | |
6cb06a8c | 5262 | gdb_printf ("%*s", spaces, ""); |
5ba3b20e AB |
5263 | if (TYPE_ASSOCIATED_PROP (type) != nullptr) |
5264 | { | |
6cb06a8c | 5265 | gdb_printf ("associated "); |
5ba3b20e AB |
5266 | dump_dynamic_prop (*TYPE_ASSOCIATED_PROP (type)); |
5267 | } | |
5268 | if (TYPE_ALLOCATED_PROP (type) != nullptr) | |
5269 | { | |
5270 | if (TYPE_ASSOCIATED_PROP (type) != nullptr) | |
6cb06a8c TT |
5271 | gdb_printf (" "); |
5272 | gdb_printf ("allocated "); | |
5ba3b20e AB |
5273 | dump_dynamic_prop (*TYPE_ALLOCATED_PROP (type)); |
5274 | } | |
6cb06a8c | 5275 | gdb_printf ("\n"); |
5ba3b20e | 5276 | } |
6cb06a8c | 5277 | gdb_printf ("%s\n", host_address_to_string (type->fields ())); |
1f704f76 | 5278 | for (idx = 0; idx < type->num_fields (); idx++) |
c906108c | 5279 | { |
20aadb93 | 5280 | field &fld = type->field (idx); |
78134374 | 5281 | if (type->code () == TYPE_CODE_ENUM) |
6cb06a8c | 5282 | gdb_printf ("%*s[%d] enumval %s type ", spaces + 2, "", |
20aadb93 | 5283 | idx, plongest (fld.loc_enumval ())); |
14e75d8e | 5284 | else |
6cb06a8c | 5285 | gdb_printf ("%*s[%d] bitpos %s bitsize %d type ", spaces + 2, "", |
20aadb93 TT |
5286 | idx, plongest (fld.loc_bitpos ()), |
5287 | fld.bitsize ()); | |
5ffb4736 | 5288 | gdb_printf ("%s name '%s' (%s)", |
20aadb93 TT |
5289 | host_address_to_string (fld.type ()), |
5290 | fld.name () != NULL | |
5291 | ? fld.name () | |
6cb06a8c | 5292 | : "<NULL>", |
20aadb93 TT |
5293 | host_address_to_string (fld.name ())); |
5294 | if (fld.is_virtual ()) | |
5ffb4736 TT |
5295 | gdb_printf (" virtual"); |
5296 | ||
20aadb93 | 5297 | if (fld.is_private ()) |
5ffb4736 | 5298 | gdb_printf (" private"); |
20aadb93 | 5299 | else if (fld.is_protected ()) |
5ffb4736 | 5300 | gdb_printf (" protected"); |
20aadb93 | 5301 | else if (fld.is_ignored ()) |
5ffb4736 TT |
5302 | gdb_printf (" ignored"); |
5303 | ||
5304 | gdb_printf ("\n"); | |
20aadb93 | 5305 | if (fld.type () != NULL) |
c906108c | 5306 | { |
20aadb93 | 5307 | recursive_dump_type (fld.type (), spaces + 4); |
c906108c SS |
5308 | } |
5309 | } | |
78134374 | 5310 | if (type->code () == TYPE_CODE_RANGE) |
43bbcdc2 | 5311 | { |
6cb06a8c | 5312 | gdb_printf ("%*slow ", spaces, ""); |
53d5a2a5 | 5313 | dump_dynamic_prop (type->bounds ()->low); |
6cb06a8c | 5314 | gdb_printf (" high "); |
53d5a2a5 | 5315 | dump_dynamic_prop (type->bounds ()->high); |
6cb06a8c | 5316 | gdb_printf ("\n"); |
43bbcdc2 | 5317 | } |
c906108c | 5318 | |
b4ba55a1 JB |
5319 | switch (TYPE_SPECIFIC_FIELD (type)) |
5320 | { | |
9c808ba1 TT |
5321 | case TYPE_SPECIFIC_CPLUS_STUFF: |
5322 | gdb_printf ("%*scplus_stuff %s\n", spaces, "", | |
5323 | host_address_to_string (TYPE_CPLUS_SPECIFIC (type))); | |
5324 | print_cplus_stuff (type, spaces); | |
5325 | break; | |
8da61cc4 | 5326 | |
9c808ba1 TT |
5327 | case TYPE_SPECIFIC_GNAT_STUFF: |
5328 | gdb_printf ("%*sgnat_stuff %s\n", spaces, "", | |
5329 | host_address_to_string (TYPE_GNAT_SPECIFIC (type))); | |
5330 | print_gnat_stuff (type, spaces); | |
5331 | break; | |
701c159d | 5332 | |
9c808ba1 TT |
5333 | case TYPE_SPECIFIC_FLOATFORMAT: |
5334 | gdb_printf ("%*sfloatformat ", spaces, ""); | |
5335 | if (TYPE_FLOATFORMAT (type) == NULL | |
5336 | || TYPE_FLOATFORMAT (type)->name == NULL) | |
5337 | gdb_puts ("(null)"); | |
5338 | else | |
5339 | gdb_puts (TYPE_FLOATFORMAT (type)->name); | |
5340 | gdb_puts ("\n"); | |
5341 | break; | |
c906108c | 5342 | |
9c808ba1 TT |
5343 | case TYPE_SPECIFIC_FUNC: |
5344 | gdb_printf ("%*scalling_convention %d\n", spaces, "", | |
5345 | TYPE_CALLING_CONVENTION (type)); | |
5346 | /* tail_call_list is not printed. */ | |
5347 | break; | |
09e2d7c7 | 5348 | |
9c808ba1 TT |
5349 | case TYPE_SPECIFIC_SELF_TYPE: |
5350 | gdb_printf ("%*sself_type %s\n", spaces, "", | |
5351 | host_address_to_string (TYPE_SELF_TYPE (type))); | |
5352 | break; | |
20a5fcbd | 5353 | |
9c808ba1 TT |
5354 | case TYPE_SPECIFIC_FIXED_POINT: |
5355 | gdb_printf ("%*sfixed_point_info ", spaces, ""); | |
5356 | print_fixed_point_type_info (type, spaces); | |
5357 | gdb_puts ("\n"); | |
5358 | break; | |
09584414 | 5359 | |
20a5fcbd TT |
5360 | case TYPE_SPECIFIC_INT: |
5361 | if (type->bit_size_differs_p ()) | |
5362 | { | |
5363 | unsigned bit_size = type->bit_size (); | |
5364 | unsigned bit_off = type->bit_offset (); | |
6cb06a8c TT |
5365 | gdb_printf ("%*s bit size = %u, bit offset = %u\n", spaces, "", |
5366 | bit_size, bit_off); | |
20a5fcbd TT |
5367 | } |
5368 | break; | |
c906108c | 5369 | } |
b4ba55a1 | 5370 | |
c906108c SS |
5371 | if (spaces == 0) |
5372 | obstack_free (&dont_print_type_obstack, NULL); | |
5373 | } | |
5212577a | 5374 | \f |
ae5a43e0 DJ |
5375 | /* Trivial helpers for the libiberty hash table, for mapping one |
5376 | type to another. */ | |
5377 | ||
bde539c2 | 5378 | struct type_pair |
ae5a43e0 | 5379 | { |
fd90ace4 YQ |
5380 | type_pair (struct type *old_, struct type *newobj_) |
5381 | : old (old_), newobj (newobj_) | |
5382 | {} | |
5383 | ||
5384 | struct type * const old, * const newobj; | |
ae5a43e0 DJ |
5385 | }; |
5386 | ||
5387 | static hashval_t | |
5388 | type_pair_hash (const void *item) | |
5389 | { | |
9a3c8263 | 5390 | const struct type_pair *pair = (const struct type_pair *) item; |
d8734c88 | 5391 | |
ae5a43e0 DJ |
5392 | return htab_hash_pointer (pair->old); |
5393 | } | |
5394 | ||
5395 | static int | |
5396 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
5397 | { | |
9a3c8263 SM |
5398 | const struct type_pair *lhs = (const struct type_pair *) item_lhs; |
5399 | const struct type_pair *rhs = (const struct type_pair *) item_rhs; | |
d8734c88 | 5400 | |
ae5a43e0 DJ |
5401 | return lhs->old == rhs->old; |
5402 | } | |
5403 | ||
5404 | /* Allocate the hash table used by copy_type_recursive to walk | |
bde539c2 | 5405 | types without duplicates. */ |
ae5a43e0 | 5406 | |
6108fd18 | 5407 | htab_up |
bde539c2 | 5408 | create_copied_types_hash () |
ae5a43e0 | 5409 | { |
bde539c2 TT |
5410 | return htab_up (htab_create_alloc (1, type_pair_hash, type_pair_eq, |
5411 | htab_delete_entry<type_pair>, | |
5412 | xcalloc, xfree)); | |
ae5a43e0 DJ |
5413 | } |
5414 | ||
d9823cbb KB |
5415 | /* Recursively copy (deep copy) a dynamic attribute list of a type. */ |
5416 | ||
5417 | static struct dynamic_prop_list * | |
bde539c2 | 5418 | copy_dynamic_prop_list (struct obstack *storage, |
d9823cbb KB |
5419 | struct dynamic_prop_list *list) |
5420 | { | |
5421 | struct dynamic_prop_list *copy = list; | |
5422 | struct dynamic_prop_list **node_ptr = © | |
5423 | ||
5424 | while (*node_ptr != NULL) | |
5425 | { | |
5426 | struct dynamic_prop_list *node_copy; | |
5427 | ||
224c3ddb | 5428 | node_copy = ((struct dynamic_prop_list *) |
bde539c2 | 5429 | obstack_copy (storage, *node_ptr, |
224c3ddb | 5430 | sizeof (struct dynamic_prop_list))); |
283a9958 | 5431 | node_copy->prop = (*node_ptr)->prop; |
d9823cbb KB |
5432 | *node_ptr = node_copy; |
5433 | ||
5434 | node_ptr = &node_copy->next; | |
5435 | } | |
5436 | ||
5437 | return copy; | |
5438 | } | |
5439 | ||
7ba81444 | 5440 | /* Recursively copy (deep copy) TYPE, if it is associated with |
eed8b28a PP |
5441 | OBJFILE. Return a new type owned by the gdbarch associated with the type, a |
5442 | saved type if we have already visited TYPE (using COPIED_TYPES), or TYPE if | |
5443 | it is not associated with OBJFILE. */ | |
ae5a43e0 DJ |
5444 | |
5445 | struct type * | |
bde539c2 | 5446 | copy_type_recursive (struct type *type, htab_t copied_types) |
ae5a43e0 | 5447 | { |
ae5a43e0 DJ |
5448 | void **slot; |
5449 | struct type *new_type; | |
5450 | ||
30625020 | 5451 | if (!type->is_objfile_owned ()) |
ae5a43e0 DJ |
5452 | return type; |
5453 | ||
fd90ace4 YQ |
5454 | struct type_pair pair (type, nullptr); |
5455 | ||
ae5a43e0 DJ |
5456 | slot = htab_find_slot (copied_types, &pair, INSERT); |
5457 | if (*slot != NULL) | |
fe978cb0 | 5458 | return ((struct type_pair *) *slot)->newobj; |
ae5a43e0 | 5459 | |
c9eb9f18 | 5460 | new_type = type_allocator (type->arch ()).new_type (); |
ae5a43e0 DJ |
5461 | |
5462 | /* We must add the new type to the hash table immediately, in case | |
5463 | we encounter this type again during a recursive call below. */ | |
bde539c2 | 5464 | struct type_pair *stored = new type_pair (type, new_type); |
fd90ace4 | 5465 | |
ae5a43e0 DJ |
5466 | *slot = stored; |
5467 | ||
876cecd0 TT |
5468 | /* Copy the common fields of types. For the main type, we simply |
5469 | copy the entire thing and then update specific fields as needed. */ | |
5470 | *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type); | |
5b7d941b | 5471 | |
8ee511af | 5472 | new_type->set_owner (type->arch ()); |
876cecd0 | 5473 | |
7d93a1e0 SM |
5474 | if (type->name ()) |
5475 | new_type->set_name (xstrdup (type->name ())); | |
ae5a43e0 | 5476 | |
314ad88d | 5477 | new_type->set_instance_flags (type->instance_flags ()); |
df86565b | 5478 | new_type->set_length (type->length ()); |
ae5a43e0 DJ |
5479 | |
5480 | /* Copy the fields. */ | |
1f704f76 | 5481 | if (type->num_fields ()) |
ae5a43e0 DJ |
5482 | { |
5483 | int i, nfields; | |
5484 | ||
1f704f76 | 5485 | nfields = type->num_fields (); |
2774f2da | 5486 | new_type->alloc_fields (type->num_fields ()); |
3cabb6b0 | 5487 | |
ae5a43e0 DJ |
5488 | for (i = 0; i < nfields; i++) |
5489 | { | |
321d8b3f | 5490 | new_type->field (i).set_is_artificial |
454977cd | 5491 | (type->field (i).is_artificial ()); |
3757d2d4 | 5492 | new_type->field (i).set_bitsize (type->field (i).bitsize ()); |
940da03e | 5493 | if (type->field (i).type ()) |
5d14b6e5 | 5494 | new_type->field (i).set_type |
bde539c2 | 5495 | (copy_type_recursive (type->field (i).type (), copied_types)); |
33d16dd9 SM |
5496 | if (type->field (i).name ()) |
5497 | new_type->field (i).set_name (xstrdup (type->field (i).name ())); | |
2ad53ea1 SM |
5498 | |
5499 | switch (type->field (i).loc_kind ()) | |
ae5a43e0 | 5500 | { |
d6a843b5 | 5501 | case FIELD_LOC_KIND_BITPOS: |
b610c045 | 5502 | new_type->field (i).set_loc_bitpos (type->field (i).loc_bitpos ()); |
d6a843b5 | 5503 | break; |
14e75d8e | 5504 | case FIELD_LOC_KIND_ENUMVAL: |
970db518 | 5505 | new_type->field (i).set_loc_enumval (type->field (i).loc_enumval ()); |
14e75d8e | 5506 | break; |
d6a843b5 | 5507 | case FIELD_LOC_KIND_PHYSADDR: |
cd3f655c | 5508 | new_type->field (i).set_loc_physaddr |
e06c3e11 | 5509 | (type->field (i).loc_physaddr ()); |
d6a843b5 JK |
5510 | break; |
5511 | case FIELD_LOC_KIND_PHYSNAME: | |
cd3f655c | 5512 | new_type->field (i).set_loc_physname |
fcbbbd90 | 5513 | (xstrdup (type->field (i).loc_physname ())); |
d6a843b5 | 5514 | break; |
287de656 SM |
5515 | case FIELD_LOC_KIND_DWARF_BLOCK: |
5516 | new_type->field (i).set_loc_dwarf_block | |
51e36a3a | 5517 | (type->field (i).loc_dwarf_block ()); |
287de656 | 5518 | break; |
d6a843b5 | 5519 | default: |
f34652de | 5520 | internal_error (_("Unexpected type field location kind: %d"), |
2ad53ea1 | 5521 | type->field (i).loc_kind ()); |
ae5a43e0 DJ |
5522 | } |
5523 | } | |
5524 | } | |
5525 | ||
0963b4bd | 5526 | /* For range types, copy the bounds information. */ |
78134374 | 5527 | if (type->code () == TYPE_CODE_RANGE) |
43bbcdc2 | 5528 | { |
c4dfcb36 | 5529 | range_bounds *bounds |
dda83cd7 | 5530 | = ((struct range_bounds *) TYPE_ALLOC |
c4dfcb36 SM |
5531 | (new_type, sizeof (struct range_bounds))); |
5532 | ||
5533 | *bounds = *type->bounds (); | |
5534 | new_type->set_bounds (bounds); | |
43bbcdc2 PH |
5535 | } |
5536 | ||
98d48915 SM |
5537 | if (type->main_type->dyn_prop_list != NULL) |
5538 | new_type->main_type->dyn_prop_list | |
bde539c2 | 5539 | = copy_dynamic_prop_list (gdbarch_obstack (new_type->arch_owner ()), |
98d48915 | 5540 | type->main_type->dyn_prop_list); |
d9823cbb | 5541 | |
3cdcd0ce | 5542 | |
ae5a43e0 | 5543 | /* Copy pointers to other types. */ |
27710edb | 5544 | if (type->target_type ()) |
8a50fdce | 5545 | new_type->set_target_type |
27710edb | 5546 | (copy_type_recursive (type->target_type (), copied_types)); |
f6b3afbf | 5547 | |
ae5a43e0 DJ |
5548 | /* Maybe copy the type_specific bits. |
5549 | ||
5550 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
5551 | base classes and methods. There's no fundamental reason why we | |
5552 | can't, but at the moment it is not needed. */ | |
5553 | ||
f6b3afbf DE |
5554 | switch (TYPE_SPECIFIC_FIELD (type)) |
5555 | { | |
5556 | case TYPE_SPECIFIC_NONE: | |
5557 | break; | |
5558 | case TYPE_SPECIFIC_FUNC: | |
5559 | INIT_FUNC_SPECIFIC (new_type); | |
5560 | TYPE_CALLING_CONVENTION (new_type) = TYPE_CALLING_CONVENTION (type); | |
5561 | TYPE_NO_RETURN (new_type) = TYPE_NO_RETURN (type); | |
5562 | TYPE_TAIL_CALL_LIST (new_type) = NULL; | |
5563 | break; | |
5564 | case TYPE_SPECIFIC_FLOATFORMAT: | |
5565 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); | |
5566 | break; | |
5567 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
5568 | INIT_CPLUS_SPECIFIC (new_type); | |
5569 | break; | |
5570 | case TYPE_SPECIFIC_GNAT_STUFF: | |
5571 | INIT_GNAT_SPECIFIC (new_type); | |
5572 | break; | |
09e2d7c7 DE |
5573 | case TYPE_SPECIFIC_SELF_TYPE: |
5574 | set_type_self_type (new_type, | |
bde539c2 | 5575 | copy_type_recursive (TYPE_SELF_TYPE (type), |
09e2d7c7 DE |
5576 | copied_types)); |
5577 | break; | |
09584414 JB |
5578 | case TYPE_SPECIFIC_FIXED_POINT: |
5579 | INIT_FIXED_POINT_SPECIFIC (new_type); | |
2a12c336 JB |
5580 | new_type->fixed_point_info ().scaling_factor |
5581 | = type->fixed_point_info ().scaling_factor; | |
09584414 | 5582 | break; |
20a5fcbd TT |
5583 | case TYPE_SPECIFIC_INT: |
5584 | TYPE_SPECIFIC_FIELD (new_type) = TYPE_SPECIFIC_INT; | |
5585 | TYPE_MAIN_TYPE (new_type)->type_specific.int_stuff | |
5586 | = TYPE_MAIN_TYPE (type)->type_specific.int_stuff; | |
5587 | break; | |
5588 | ||
f6b3afbf DE |
5589 | default: |
5590 | gdb_assert_not_reached ("bad type_specific_kind"); | |
5591 | } | |
ae5a43e0 DJ |
5592 | |
5593 | return new_type; | |
5594 | } | |
5595 | ||
4af88198 | 5596 | /* Make a copy of the given TYPE, except that the pointer & reference |
8e2da165 | 5597 | types are not preserved. */ |
4af88198 JB |
5598 | |
5599 | struct type * | |
5600 | copy_type (const struct type *type) | |
5601 | { | |
9fa83a7a | 5602 | struct type *new_type = type_allocator (type).new_type (); |
314ad88d | 5603 | new_type->set_instance_flags (type->instance_flags ()); |
df86565b | 5604 | new_type->set_length (type->length ()); |
4af88198 JB |
5605 | memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type), |
5606 | sizeof (struct main_type)); | |
98d48915 | 5607 | if (type->main_type->dyn_prop_list != NULL) |
8e2da165 TT |
5608 | { |
5609 | struct obstack *storage = (type->is_objfile_owned () | |
5610 | ? &type->objfile_owner ()->objfile_obstack | |
5611 | : gdbarch_obstack (type->arch_owner ())); | |
5612 | new_type->main_type->dyn_prop_list | |
5613 | = copy_dynamic_prop_list (storage, type->main_type->dyn_prop_list); | |
5614 | } | |
4af88198 JB |
5615 | |
5616 | return new_type; | |
5617 | } | |
5212577a | 5618 | \f |
e9bb382b UW |
5619 | /* Helper functions to initialize architecture-specific types. */ |
5620 | ||
e9bb382b | 5621 | /* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH. |
77b7c781 | 5622 | NAME is the type name. BIT is the size of the flag word in bits. */ |
5212577a | 5623 | |
e9bb382b | 5624 | struct type * |
77b7c781 | 5625 | arch_flags_type (struct gdbarch *gdbarch, const char *name, int bit) |
e9bb382b | 5626 | { |
e9bb382b UW |
5627 | struct type *type; |
5628 | ||
cc495054 | 5629 | type = type_allocator (gdbarch).new_type (TYPE_CODE_FLAGS, bit, name); |
653223d3 | 5630 | type->set_is_unsigned (true); |
81516450 | 5631 | /* Pre-allocate enough space assuming every field is one bit. */ |
2774f2da TV |
5632 | type->alloc_fields (bit); |
5633 | type->set_num_fields (0); | |
e9bb382b UW |
5634 | |
5635 | return type; | |
5636 | } | |
5637 | ||
5638 | /* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
81516450 DE |
5639 | position BITPOS is called NAME. Pass NAME as "" for fields that |
5640 | should not be printed. */ | |
5641 | ||
5642 | void | |
5643 | append_flags_type_field (struct type *type, int start_bitpos, int nr_bits, | |
695bfa52 | 5644 | struct type *field_type, const char *name) |
81516450 | 5645 | { |
df86565b | 5646 | int type_bitsize = type->length () * TARGET_CHAR_BIT; |
1f704f76 | 5647 | int field_nr = type->num_fields (); |
81516450 | 5648 | |
78134374 | 5649 | gdb_assert (type->code () == TYPE_CODE_FLAGS); |
1f704f76 | 5650 | gdb_assert (type->num_fields () + 1 <= type_bitsize); |
81516450 | 5651 | gdb_assert (start_bitpos >= 0 && start_bitpos < type_bitsize); |
602885d8 | 5652 | gdb_assert (nr_bits >= 1 && (start_bitpos + nr_bits) <= type_bitsize); |
81516450 DE |
5653 | gdb_assert (name != NULL); |
5654 | ||
5a8edb75 | 5655 | type->set_num_fields (type->num_fields () + 1); |
d3fd12df | 5656 | type->field (field_nr).set_name (xstrdup (name)); |
5d14b6e5 | 5657 | type->field (field_nr).set_type (field_type); |
cd3f655c | 5658 | type->field (field_nr).set_loc_bitpos (start_bitpos); |
886176b8 | 5659 | type->field (field_nr).set_bitsize (nr_bits); |
81516450 DE |
5660 | } |
5661 | ||
5662 | /* Special version of append_flags_type_field to add a flag field. | |
5663 | Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
e9bb382b | 5664 | position BITPOS is called NAME. */ |
5212577a | 5665 | |
e9bb382b | 5666 | void |
695bfa52 | 5667 | append_flags_type_flag (struct type *type, int bitpos, const char *name) |
e9bb382b | 5668 | { |
81516450 | 5669 | append_flags_type_field (type, bitpos, 1, |
8ee511af | 5670 | builtin_type (type->arch ())->builtin_bool, |
81516450 | 5671 | name); |
e9bb382b UW |
5672 | } |
5673 | ||
5674 | /* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as | |
5675 | specified by CODE) associated with GDBARCH. NAME is the type name. */ | |
5212577a | 5676 | |
e9bb382b | 5677 | struct type * |
695bfa52 TT |
5678 | arch_composite_type (struct gdbarch *gdbarch, const char *name, |
5679 | enum type_code code) | |
e9bb382b UW |
5680 | { |
5681 | struct type *t; | |
d8734c88 | 5682 | |
e9bb382b | 5683 | gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION); |
cc495054 | 5684 | t = type_allocator (gdbarch).new_type (code, 0, NULL); |
d0e39ea2 | 5685 | t->set_name (name); |
e9bb382b UW |
5686 | INIT_CPLUS_SPECIFIC (t); |
5687 | return t; | |
5688 | } | |
5689 | ||
5690 | /* Add new field with name NAME and type FIELD to composite type T. | |
f5dff777 DJ |
5691 | Do not set the field's position or adjust the type's length; |
5692 | the caller should do so. Return the new field. */ | |
5212577a | 5693 | |
f5dff777 | 5694 | struct field * |
695bfa52 | 5695 | append_composite_type_field_raw (struct type *t, const char *name, |
f5dff777 | 5696 | struct type *field) |
e9bb382b UW |
5697 | { |
5698 | struct field *f; | |
d8734c88 | 5699 | |
1f704f76 | 5700 | t->set_num_fields (t->num_fields () + 1); |
80fc5e77 | 5701 | t->set_fields (XRESIZEVEC (struct field, t->fields (), |
3cabb6b0 | 5702 | t->num_fields ())); |
80fc5e77 | 5703 | f = &t->field (t->num_fields () - 1); |
e9bb382b | 5704 | memset (f, 0, sizeof f[0]); |
5d14b6e5 | 5705 | f[0].set_type (field); |
d3fd12df | 5706 | f[0].set_name (name); |
f5dff777 DJ |
5707 | return f; |
5708 | } | |
5709 | ||
5710 | /* Add new field with name NAME and type FIELD to composite type T. | |
5711 | ALIGNMENT (if non-zero) specifies the minimum field alignment. */ | |
5212577a | 5712 | |
f5dff777 | 5713 | void |
695bfa52 | 5714 | append_composite_type_field_aligned (struct type *t, const char *name, |
f5dff777 DJ |
5715 | struct type *field, int alignment) |
5716 | { | |
5717 | struct field *f = append_composite_type_field_raw (t, name, field); | |
d8734c88 | 5718 | |
78134374 | 5719 | if (t->code () == TYPE_CODE_UNION) |
e9bb382b | 5720 | { |
df86565b SM |
5721 | if (t->length () < field->length ()) |
5722 | t->set_length (field->length ()); | |
e9bb382b | 5723 | } |
78134374 | 5724 | else if (t->code () == TYPE_CODE_STRUCT) |
e9bb382b | 5725 | { |
df86565b | 5726 | t->set_length (t->length () + field->length ()); |
1f704f76 | 5727 | if (t->num_fields () > 1) |
e9bb382b | 5728 | { |
cd3f655c | 5729 | f->set_loc_bitpos |
df86565b SM |
5730 | (f[-1].loc_bitpos () |
5731 | + (f[-1].type ()->length () * TARGET_CHAR_BIT)); | |
e9bb382b UW |
5732 | |
5733 | if (alignment) | |
5734 | { | |
86c3c1fc AB |
5735 | int left; |
5736 | ||
5737 | alignment *= TARGET_CHAR_BIT; | |
3a543e21 | 5738 | left = f[0].loc_bitpos () % alignment; |
d8734c88 | 5739 | |
e9bb382b UW |
5740 | if (left) |
5741 | { | |
3a543e21 | 5742 | f->set_loc_bitpos (f[0].loc_bitpos () + (alignment - left)); |
b6cdbc9a SM |
5743 | t->set_length |
5744 | (t->length () + (alignment - left) / TARGET_CHAR_BIT); | |
e9bb382b UW |
5745 | } |
5746 | } | |
5747 | } | |
5748 | } | |
5749 | } | |
5750 | ||
5751 | /* Add new field with name NAME and type FIELD to composite type T. */ | |
5212577a | 5752 | |
e9bb382b | 5753 | void |
695bfa52 | 5754 | append_composite_type_field (struct type *t, const char *name, |
e9bb382b UW |
5755 | struct type *field) |
5756 | { | |
5757 | append_composite_type_field_aligned (t, name, field, 0); | |
5758 | } | |
5759 | ||
09584414 JB |
5760 | \f |
5761 | ||
5762 | /* We manage the lifetimes of fixed_point_type_info objects by | |
5763 | attaching them to the objfile. Currently, these objects are | |
5764 | modified during construction, and GMP does not provide a way to | |
5765 | hash the contents of an mpq_t; so it's a bit of a pain to hash-cons | |
5766 | them. If we did do this, they could be moved to the per-BFD and | |
5767 | shared across objfiles. */ | |
5768 | typedef std::vector<std::unique_ptr<fixed_point_type_info>> | |
5769 | fixed_point_type_storage; | |
5770 | ||
5771 | /* Key used for managing the storage of fixed-point type info. */ | |
08b8a139 | 5772 | static const struct registry<objfile>::key<fixed_point_type_storage> |
09584414 JB |
5773 | fixed_point_objfile_key; |
5774 | ||
5775 | /* See gdbtypes.h. */ | |
5776 | ||
2a12c336 | 5777 | void |
09584414 JB |
5778 | allocate_fixed_point_type_info (struct type *type) |
5779 | { | |
6b62451a | 5780 | auto up = std::make_unique<fixed_point_type_info> (); |
2a12c336 | 5781 | fixed_point_type_info *info; |
09584414 | 5782 | |
30625020 | 5783 | if (type->is_objfile_owned ()) |
09584414 JB |
5784 | { |
5785 | fixed_point_type_storage *storage | |
6ac37371 | 5786 | = fixed_point_objfile_key.get (type->objfile_owner ()); |
09584414 | 5787 | if (storage == nullptr) |
6ac37371 | 5788 | storage = fixed_point_objfile_key.emplace (type->objfile_owner ()); |
2a12c336 | 5789 | info = up.get (); |
09584414 JB |
5790 | storage->push_back (std::move (up)); |
5791 | } | |
5792 | else | |
5793 | { | |
5794 | /* We just leak the memory, because that's what we do generally | |
5795 | for non-objfile-attached types. */ | |
2a12c336 | 5796 | info = up.release (); |
09584414 JB |
5797 | } |
5798 | ||
2a12c336 | 5799 | type->set_fixed_point_info (info); |
09584414 JB |
5800 | } |
5801 | ||
5802 | /* See gdbtypes.h. */ | |
5803 | ||
5804 | bool | |
5805 | is_fixed_point_type (struct type *type) | |
5806 | { | |
5807 | while (check_typedef (type)->code () == TYPE_CODE_RANGE) | |
27710edb | 5808 | type = check_typedef (type)->target_type (); |
09584414 JB |
5809 | type = check_typedef (type); |
5810 | ||
5811 | return type->code () == TYPE_CODE_FIXED_POINT; | |
5812 | } | |
5813 | ||
5814 | /* See gdbtypes.h. */ | |
5815 | ||
5816 | struct type * | |
d19937a7 | 5817 | type::fixed_point_type_base_type () |
09584414 | 5818 | { |
d19937a7 JB |
5819 | struct type *type = this; |
5820 | ||
09584414 | 5821 | while (check_typedef (type)->code () == TYPE_CODE_RANGE) |
27710edb | 5822 | type = check_typedef (type)->target_type (); |
09584414 JB |
5823 | type = check_typedef (type); |
5824 | ||
5825 | gdb_assert (type->code () == TYPE_CODE_FIXED_POINT); | |
5826 | return type; | |
5827 | } | |
5828 | ||
5829 | /* See gdbtypes.h. */ | |
5830 | ||
5831 | const gdb_mpq & | |
e6fcee3a | 5832 | type::fixed_point_scaling_factor () |
09584414 | 5833 | { |
e6fcee3a | 5834 | struct type *type = this->fixed_point_type_base_type (); |
09584414 | 5835 | |
2a12c336 | 5836 | return type->fixed_point_info ().scaling_factor; |
09584414 JB |
5837 | } |
5838 | ||
2774f2da TV |
5839 | /* See gdbtypes.h. */ |
5840 | ||
5841 | void | |
5842 | type::alloc_fields (unsigned int nfields, bool init) | |
5843 | { | |
5844 | this->set_num_fields (nfields); | |
5845 | ||
5846 | if (nfields == 0) | |
5847 | { | |
5848 | this->main_type->flds_bnds.fields = nullptr; | |
5849 | return; | |
5850 | } | |
5851 | ||
5852 | size_t size = nfields * sizeof (*this->fields ()); | |
5853 | struct field *fields | |
5854 | = (struct field *) (init | |
5855 | ? TYPE_ZALLOC (this, size) | |
5856 | : TYPE_ALLOC (this, size)); | |
5857 | ||
5858 | this->main_type->flds_bnds.fields = fields; | |
5859 | } | |
5860 | ||
5861 | /* See gdbtypes.h. */ | |
5862 | ||
5863 | void | |
5864 | type::copy_fields (struct type *src) | |
5865 | { | |
5866 | unsigned int nfields = src->num_fields (); | |
5867 | alloc_fields (nfields, false); | |
5868 | if (nfields == 0) | |
5869 | return; | |
5870 | ||
5871 | size_t size = nfields * sizeof (*this->fields ()); | |
5872 | memcpy (this->fields (), src->fields (), size); | |
5873 | } | |
5874 | ||
5875 | /* See gdbtypes.h. */ | |
5876 | ||
5877 | void | |
5878 | type::copy_fields (std::vector<struct field> &src) | |
5879 | { | |
5880 | unsigned int nfields = src.size (); | |
5881 | alloc_fields (nfields, false); | |
5882 | if (nfields == 0) | |
5883 | return; | |
5884 | ||
5885 | size_t size = nfields * sizeof (*this->fields ()); | |
5886 | memcpy (this->fields (), src.data (), size); | |
5887 | } | |
84914f59 | 5888 | |
76fc0f62 TT |
5889 | /* See gdbtypes.h. */ |
5890 | ||
5891 | bool | |
5892 | type::is_string_like () | |
5893 | { | |
5894 | const language_defn *defn = language_def (this->language ()); | |
5895 | return defn->is_string_type_p (this); | |
5896 | } | |
5897 | ||
5898 | /* See gdbtypes.h. */ | |
5899 | ||
84914f59 TT |
5900 | bool |
5901 | type::is_array_like () | |
5902 | { | |
5903 | if (code () == TYPE_CODE_ARRAY) | |
5904 | return true; | |
76fc0f62 TT |
5905 | const language_defn *defn = language_def (this->language ()); |
5906 | return defn->is_array_like (this); | |
84914f59 TT |
5907 | } |
5908 | ||
09584414 JB |
5909 | \f |
5910 | ||
cb275538 | 5911 | static const registry<gdbarch>::key<struct builtin_type> gdbtypes_data; |
000177f0 | 5912 | |
cb275538 TT |
5913 | static struct builtin_type * |
5914 | create_gdbtypes_data (struct gdbarch *gdbarch) | |
000177f0 | 5915 | { |
cb275538 | 5916 | struct builtin_type *builtin_type = new struct builtin_type; |
000177f0 | 5917 | |
cc495054 TT |
5918 | type_allocator alloc (gdbarch); |
5919 | ||
46bf5051 | 5920 | /* Basic types. */ |
e9bb382b | 5921 | builtin_type->builtin_void |
cc495054 | 5922 | = alloc.new_type (TYPE_CODE_VOID, TARGET_CHAR_BIT, "void"); |
e9bb382b | 5923 | builtin_type->builtin_char |
2d39ccd3 | 5924 | = init_integer_type (alloc, TARGET_CHAR_BIT, |
e9bb382b | 5925 | !gdbarch_char_signed (gdbarch), "char"); |
15152a54 | 5926 | builtin_type->builtin_char->set_has_no_signedness (true); |
e9bb382b | 5927 | builtin_type->builtin_signed_char |
2d39ccd3 | 5928 | = init_integer_type (alloc, TARGET_CHAR_BIT, |
e9bb382b UW |
5929 | 0, "signed char"); |
5930 | builtin_type->builtin_unsigned_char | |
2d39ccd3 | 5931 | = init_integer_type (alloc, TARGET_CHAR_BIT, |
e9bb382b UW |
5932 | 1, "unsigned char"); |
5933 | builtin_type->builtin_short | |
2d39ccd3 | 5934 | = init_integer_type (alloc, gdbarch_short_bit (gdbarch), |
e9bb382b UW |
5935 | 0, "short"); |
5936 | builtin_type->builtin_unsigned_short | |
2d39ccd3 | 5937 | = init_integer_type (alloc, gdbarch_short_bit (gdbarch), |
e9bb382b UW |
5938 | 1, "unsigned short"); |
5939 | builtin_type->builtin_int | |
2d39ccd3 | 5940 | = init_integer_type (alloc, gdbarch_int_bit (gdbarch), |
e9bb382b UW |
5941 | 0, "int"); |
5942 | builtin_type->builtin_unsigned_int | |
2d39ccd3 | 5943 | = init_integer_type (alloc, gdbarch_int_bit (gdbarch), |
e9bb382b UW |
5944 | 1, "unsigned int"); |
5945 | builtin_type->builtin_long | |
2d39ccd3 | 5946 | = init_integer_type (alloc, gdbarch_long_bit (gdbarch), |
e9bb382b UW |
5947 | 0, "long"); |
5948 | builtin_type->builtin_unsigned_long | |
2d39ccd3 | 5949 | = init_integer_type (alloc, gdbarch_long_bit (gdbarch), |
e9bb382b UW |
5950 | 1, "unsigned long"); |
5951 | builtin_type->builtin_long_long | |
2d39ccd3 | 5952 | = init_integer_type (alloc, gdbarch_long_long_bit (gdbarch), |
e9bb382b UW |
5953 | 0, "long long"); |
5954 | builtin_type->builtin_unsigned_long_long | |
2d39ccd3 | 5955 | = init_integer_type (alloc, gdbarch_long_long_bit (gdbarch), |
e9bb382b | 5956 | 1, "unsigned long long"); |
a6d0f249 | 5957 | builtin_type->builtin_half |
77c5f496 | 5958 | = init_float_type (alloc, gdbarch_half_bit (gdbarch), |
a6d0f249 | 5959 | "half", gdbarch_half_format (gdbarch)); |
70bd8e24 | 5960 | builtin_type->builtin_float |
77c5f496 | 5961 | = init_float_type (alloc, gdbarch_float_bit (gdbarch), |
27067745 | 5962 | "float", gdbarch_float_format (gdbarch)); |
2a67f09d | 5963 | builtin_type->builtin_bfloat16 |
77c5f496 | 5964 | = init_float_type (alloc, gdbarch_bfloat16_bit (gdbarch), |
2a67f09d | 5965 | "bfloat16", gdbarch_bfloat16_format (gdbarch)); |
70bd8e24 | 5966 | builtin_type->builtin_double |
77c5f496 | 5967 | = init_float_type (alloc, gdbarch_double_bit (gdbarch), |
27067745 | 5968 | "double", gdbarch_double_format (gdbarch)); |
70bd8e24 | 5969 | builtin_type->builtin_long_double |
77c5f496 | 5970 | = init_float_type (alloc, gdbarch_long_double_bit (gdbarch), |
27067745 | 5971 | "long double", gdbarch_long_double_format (gdbarch)); |
70bd8e24 | 5972 | builtin_type->builtin_complex |
5b930b45 | 5973 | = init_complex_type ("complex", builtin_type->builtin_float); |
70bd8e24 | 5974 | builtin_type->builtin_double_complex |
5b930b45 | 5975 | = init_complex_type ("double complex", builtin_type->builtin_double); |
e9bb382b | 5976 | builtin_type->builtin_string |
cc495054 | 5977 | = alloc.new_type (TYPE_CODE_STRING, TARGET_CHAR_BIT, "string"); |
e9bb382b | 5978 | builtin_type->builtin_bool |
46c04ea3 | 5979 | = init_boolean_type (alloc, TARGET_CHAR_BIT, 1, "bool"); |
000177f0 | 5980 | |
7678ef8f TJB |
5981 | /* The following three are about decimal floating point types, which |
5982 | are 32-bits, 64-bits and 128-bits respectively. */ | |
5983 | builtin_type->builtin_decfloat | |
0776344a | 5984 | = init_decfloat_type (alloc, 32, "_Decimal32"); |
7678ef8f | 5985 | builtin_type->builtin_decdouble |
0776344a | 5986 | = init_decfloat_type (alloc, 64, "_Decimal64"); |
7678ef8f | 5987 | builtin_type->builtin_declong |
0776344a | 5988 | = init_decfloat_type (alloc, 128, "_Decimal128"); |
7678ef8f | 5989 | |
69feb676 | 5990 | /* "True" character types. */ |
e9bb382b | 5991 | builtin_type->builtin_true_char |
f50b437c | 5992 | = init_character_type (alloc, TARGET_CHAR_BIT, 0, "true character"); |
e9bb382b | 5993 | builtin_type->builtin_true_unsigned_char |
f50b437c | 5994 | = init_character_type (alloc, TARGET_CHAR_BIT, 1, "true character"); |
69feb676 | 5995 | |
df4df182 | 5996 | /* Fixed-size integer types. */ |
e9bb382b | 5997 | builtin_type->builtin_int0 |
2d39ccd3 | 5998 | = init_integer_type (alloc, 0, 0, "int0_t"); |
e9bb382b | 5999 | builtin_type->builtin_int8 |
2d39ccd3 | 6000 | = init_integer_type (alloc, 8, 0, "int8_t"); |
e9bb382b | 6001 | builtin_type->builtin_uint8 |
2d39ccd3 | 6002 | = init_integer_type (alloc, 8, 1, "uint8_t"); |
e9bb382b | 6003 | builtin_type->builtin_int16 |
2d39ccd3 | 6004 | = init_integer_type (alloc, 16, 0, "int16_t"); |
e9bb382b | 6005 | builtin_type->builtin_uint16 |
2d39ccd3 | 6006 | = init_integer_type (alloc, 16, 1, "uint16_t"); |
d1908f2d | 6007 | builtin_type->builtin_int24 |
2d39ccd3 | 6008 | = init_integer_type (alloc, 24, 0, "int24_t"); |
d1908f2d | 6009 | builtin_type->builtin_uint24 |
2d39ccd3 | 6010 | = init_integer_type (alloc, 24, 1, "uint24_t"); |
e9bb382b | 6011 | builtin_type->builtin_int32 |
2d39ccd3 | 6012 | = init_integer_type (alloc, 32, 0, "int32_t"); |
e9bb382b | 6013 | builtin_type->builtin_uint32 |
2d39ccd3 | 6014 | = init_integer_type (alloc, 32, 1, "uint32_t"); |
e9bb382b | 6015 | builtin_type->builtin_int64 |
2d39ccd3 | 6016 | = init_integer_type (alloc, 64, 0, "int64_t"); |
e9bb382b | 6017 | builtin_type->builtin_uint64 |
2d39ccd3 | 6018 | = init_integer_type (alloc, 64, 1, "uint64_t"); |
e9bb382b | 6019 | builtin_type->builtin_int128 |
2d39ccd3 | 6020 | = init_integer_type (alloc, 128, 0, "int128_t"); |
e9bb382b | 6021 | builtin_type->builtin_uint128 |
2d39ccd3 | 6022 | = init_integer_type (alloc, 128, 1, "uint128_t"); |
314ad88d PA |
6023 | |
6024 | builtin_type->builtin_int8->set_instance_flags | |
6025 | (builtin_type->builtin_int8->instance_flags () | |
6026 | | TYPE_INSTANCE_FLAG_NOTTEXT); | |
6027 | ||
6028 | builtin_type->builtin_uint8->set_instance_flags | |
6029 | (builtin_type->builtin_uint8->instance_flags () | |
6030 | | TYPE_INSTANCE_FLAG_NOTTEXT); | |
df4df182 | 6031 | |
9a22f0d0 PM |
6032 | /* Wide character types. */ |
6033 | builtin_type->builtin_char16 | |
2d39ccd3 | 6034 | = init_integer_type (alloc, 16, 1, "char16_t"); |
9a22f0d0 | 6035 | builtin_type->builtin_char32 |
2d39ccd3 | 6036 | = init_integer_type (alloc, 32, 1, "char32_t"); |
53375380 | 6037 | builtin_type->builtin_wchar |
2d39ccd3 | 6038 | = init_integer_type (alloc, gdbarch_wchar_bit (gdbarch), |
53375380 | 6039 | !gdbarch_wchar_signed (gdbarch), "wchar_t"); |
9a22f0d0 | 6040 | |
46bf5051 | 6041 | /* Default data/code pointer types. */ |
e9bb382b UW |
6042 | builtin_type->builtin_data_ptr |
6043 | = lookup_pointer_type (builtin_type->builtin_void); | |
6044 | builtin_type->builtin_func_ptr | |
6045 | = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
0875794a JK |
6046 | builtin_type->builtin_func_func |
6047 | = lookup_function_type (builtin_type->builtin_func_ptr); | |
46bf5051 | 6048 | |
78267919 | 6049 | /* This type represents a GDB internal function. */ |
e9bb382b | 6050 | builtin_type->internal_fn |
cc495054 TT |
6051 | = alloc.new_type (TYPE_CODE_INTERNAL_FUNCTION, 0, |
6052 | "<internal function>"); | |
78267919 | 6053 | |
e81e7f5e SC |
6054 | /* This type represents an xmethod. */ |
6055 | builtin_type->xmethod | |
cc495054 | 6056 | = alloc.new_type (TYPE_CODE_XMETHOD, 0, "<xmethod>"); |
e81e7f5e | 6057 | |
a9a775da TT |
6058 | /* This type represents a type that was unrecognized in symbol read-in. */ |
6059 | builtin_type->builtin_error | |
6060 | = alloc.new_type (TYPE_CODE_ERROR, 0, "<unknown type>"); | |
6061 | ||
6062 | /* The following set of types is used for symbols with no | |
6063 | debug information. */ | |
6064 | builtin_type->nodebug_text_symbol | |
6065 | = alloc.new_type (TYPE_CODE_FUNC, TARGET_CHAR_BIT, | |
6066 | "<text variable, no debug info>"); | |
6067 | ||
6068 | builtin_type->nodebug_text_gnu_ifunc_symbol | |
6069 | = alloc.new_type (TYPE_CODE_FUNC, TARGET_CHAR_BIT, | |
6070 | "<text gnu-indirect-function variable, no debug info>"); | |
6071 | builtin_type->nodebug_text_gnu_ifunc_symbol->set_is_gnu_ifunc (true); | |
6072 | ||
6073 | builtin_type->nodebug_got_plt_symbol | |
6074 | = init_pointer_type (alloc, gdbarch_addr_bit (gdbarch), | |
6075 | "<text from jump slot in .got.plt, no debug info>", | |
6076 | builtin_type->nodebug_text_symbol); | |
6077 | builtin_type->nodebug_data_symbol | |
6078 | = alloc.new_type (TYPE_CODE_ERROR, 0, "<data variable, no debug info>"); | |
6079 | builtin_type->nodebug_unknown_symbol | |
6080 | = alloc.new_type (TYPE_CODE_ERROR, 0, | |
6081 | "<variable (not text or data), no debug info>"); | |
6082 | builtin_type->nodebug_tls_symbol | |
6083 | = alloc.new_type (TYPE_CODE_ERROR, 0, | |
6084 | "<thread local variable, no debug info>"); | |
6085 | ||
6086 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
6087 | the same. | |
6088 | ||
6089 | The upshot is: | |
6090 | - gdb's `struct type' always describes the target's | |
6091 | representation. | |
6092 | - gdb's `struct value' objects should always hold values in | |
6093 | target form. | |
6094 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
6095 | address space that the assembler and linker work with. Thus, | |
6096 | since target_read_memory takes a CORE_ADDR as an argument, it | |
6097 | can access any memory on the target, even if the processor has | |
6098 | separate code and data address spaces. | |
6099 | ||
6100 | In this context, builtin_type->builtin_core_addr is a bit odd: | |
6101 | it's a target type for a value the target will never see. It's | |
6102 | only used to hold the values of (typeless) linker symbols, which | |
6103 | are indeed in the unified virtual address space. */ | |
6104 | ||
6105 | builtin_type->builtin_core_addr | |
6106 | = init_integer_type (alloc, gdbarch_addr_bit (gdbarch), 1, | |
6107 | "__CORE_ADDR"); | |
46bf5051 UW |
6108 | return builtin_type; |
6109 | } | |
6110 | ||
cb275538 TT |
6111 | const struct builtin_type * |
6112 | builtin_type (struct gdbarch *gdbarch) | |
6113 | { | |
6114 | struct builtin_type *result = gdbtypes_data.get (gdbarch); | |
6115 | if (result == nullptr) | |
6116 | { | |
6117 | result = create_gdbtypes_data (gdbarch); | |
6118 | gdbtypes_data.set (gdbarch, result); | |
6119 | } | |
6120 | return result; | |
6121 | } | |
6122 | ||
2d1bc552 | 6123 | const struct builtin_type * |
a8ed3dde | 6124 | builtin_type (struct objfile *objfile) |
46bf5051 | 6125 | { |
2d1bc552 | 6126 | return builtin_type (objfile->arch ()); |
000177f0 AC |
6127 | } |
6128 | ||
b84aaada SM |
6129 | /* See gdbtypes.h. */ |
6130 | ||
6131 | CORE_ADDR | |
6132 | call_site::pc () const | |
6133 | { | |
1e73d09f | 6134 | return per_objfile->relocate (m_unrelocated_pc); |
b84aaada SM |
6135 | } |
6136 | ||
6c265988 | 6137 | void _initialize_gdbtypes (); |
c906108c | 6138 | void |
6c265988 | 6139 | _initialize_gdbtypes () |
c906108c | 6140 | { |
ccce17b0 YQ |
6141 | add_setshow_zuinteger_cmd ("overload", no_class, &overload_debug, |
6142 | _("Set debugging of C++ overloading."), | |
6143 | _("Show debugging of C++ overloading."), | |
6144 | _("When enabled, ranking of the " | |
6145 | "functions is displayed."), | |
6146 | NULL, | |
6147 | show_overload_debug, | |
6148 | &setdebuglist, &showdebuglist); | |
5674de60 | 6149 | |
7ba81444 | 6150 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 | 6151 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3e43a32a MS |
6152 | &opaque_type_resolution, |
6153 | _("Set resolution of opaque struct/class/union" | |
6154 | " types (if set before loading symbols)."), | |
6155 | _("Show resolution of opaque struct/class/union" | |
6156 | " types (if set before loading symbols)."), | |
6157 | NULL, NULL, | |
5674de60 UW |
6158 | show_opaque_type_resolution, |
6159 | &setlist, &showlist); | |
a451cb65 KS |
6160 | |
6161 | /* Add an option to permit non-strict type checking. */ | |
6162 | add_setshow_boolean_cmd ("type", class_support, | |
6163 | &strict_type_checking, | |
6164 | _("Set strict type checking."), | |
6165 | _("Show strict type checking."), | |
6166 | NULL, NULL, | |
6167 | show_strict_type_checking, | |
6168 | &setchecklist, &showchecklist); | |
c906108c | 6169 | } |