Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
4f2aea11 | 2 | |
b811d2c2 | 3 | Copyright (C) 1992-2020 Free Software Foundation, Inc. |
4f2aea11 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support, using pieces from other GDB modules. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
c906108c SS |
23 | #include "bfd.h" |
24 | #include "symtab.h" | |
25 | #include "symfile.h" | |
26 | #include "objfiles.h" | |
27 | #include "gdbtypes.h" | |
28 | #include "expression.h" | |
29 | #include "language.h" | |
30 | #include "target.h" | |
31 | #include "value.h" | |
32 | #include "demangle.h" | |
33 | #include "complaints.h" | |
34 | #include "gdbcmd.h" | |
015a42b4 | 35 | #include "cp-abi.h" |
ae5a43e0 | 36 | #include "hashtab.h" |
8de20a37 | 37 | #include "cp-support.h" |
ca092b61 | 38 | #include "bcache.h" |
82ca8957 | 39 | #include "dwarf2/loc.h" |
80180f79 | 40 | #include "gdbcore.h" |
1841ee5d | 41 | #include "floatformat.h" |
ef83a141 | 42 | #include <algorithm> |
ac3aafc7 | 43 | |
6403aeea SW |
44 | /* Initialize BADNESS constants. */ |
45 | ||
a9d5ef47 | 46 | const struct rank LENGTH_MISMATCH_BADNESS = {100,0}; |
6403aeea | 47 | |
a9d5ef47 SW |
48 | const struct rank TOO_FEW_PARAMS_BADNESS = {100,0}; |
49 | const struct rank INCOMPATIBLE_TYPE_BADNESS = {100,0}; | |
6403aeea | 50 | |
a9d5ef47 | 51 | const struct rank EXACT_MATCH_BADNESS = {0,0}; |
6403aeea | 52 | |
a9d5ef47 SW |
53 | const struct rank INTEGER_PROMOTION_BADNESS = {1,0}; |
54 | const struct rank FLOAT_PROMOTION_BADNESS = {1,0}; | |
55 | const struct rank BASE_PTR_CONVERSION_BADNESS = {1,0}; | |
e15c3eb4 | 56 | const struct rank CV_CONVERSION_BADNESS = {1, 0}; |
a9d5ef47 SW |
57 | const struct rank INTEGER_CONVERSION_BADNESS = {2,0}; |
58 | const struct rank FLOAT_CONVERSION_BADNESS = {2,0}; | |
59 | const struct rank INT_FLOAT_CONVERSION_BADNESS = {2,0}; | |
60 | const struct rank VOID_PTR_CONVERSION_BADNESS = {2,0}; | |
5b4f6e25 | 61 | const struct rank BOOL_CONVERSION_BADNESS = {3,0}; |
a9d5ef47 SW |
62 | const struct rank BASE_CONVERSION_BADNESS = {2,0}; |
63 | const struct rank REFERENCE_CONVERSION_BADNESS = {2,0}; | |
06acc08f | 64 | const struct rank REFERENCE_SEE_THROUGH_BADNESS = {0,1}; |
da096638 | 65 | const struct rank NULL_POINTER_CONVERSION_BADNESS = {2,0}; |
a9d5ef47 | 66 | const struct rank NS_POINTER_CONVERSION_BADNESS = {10,0}; |
a451cb65 | 67 | const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS = {3,0}; |
6403aeea | 68 | |
8da61cc4 | 69 | /* Floatformat pairs. */ |
f9e9243a UW |
70 | const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN] = { |
71 | &floatformat_ieee_half_big, | |
72 | &floatformat_ieee_half_little | |
73 | }; | |
8da61cc4 DJ |
74 | const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { |
75 | &floatformat_ieee_single_big, | |
76 | &floatformat_ieee_single_little | |
77 | }; | |
78 | const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { | |
79 | &floatformat_ieee_double_big, | |
80 | &floatformat_ieee_double_little | |
81 | }; | |
82 | const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { | |
83 | &floatformat_ieee_double_big, | |
84 | &floatformat_ieee_double_littlebyte_bigword | |
85 | }; | |
86 | const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { | |
87 | &floatformat_i387_ext, | |
88 | &floatformat_i387_ext | |
89 | }; | |
90 | const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { | |
91 | &floatformat_m68881_ext, | |
92 | &floatformat_m68881_ext | |
93 | }; | |
94 | const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { | |
95 | &floatformat_arm_ext_big, | |
96 | &floatformat_arm_ext_littlebyte_bigword | |
97 | }; | |
98 | const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { | |
99 | &floatformat_ia64_spill_big, | |
100 | &floatformat_ia64_spill_little | |
101 | }; | |
102 | const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = { | |
103 | &floatformat_ia64_quad_big, | |
104 | &floatformat_ia64_quad_little | |
105 | }; | |
106 | const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { | |
107 | &floatformat_vax_f, | |
108 | &floatformat_vax_f | |
109 | }; | |
110 | const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { | |
111 | &floatformat_vax_d, | |
112 | &floatformat_vax_d | |
113 | }; | |
b14d30e1 | 114 | const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { |
f5aee5ee AM |
115 | &floatformat_ibm_long_double_big, |
116 | &floatformat_ibm_long_double_little | |
b14d30e1 | 117 | }; |
2a67f09d FW |
118 | const struct floatformat *floatformats_bfloat16[BFD_ENDIAN_UNKNOWN] = { |
119 | &floatformat_bfloat16_big, | |
120 | &floatformat_bfloat16_little | |
121 | }; | |
8da61cc4 | 122 | |
2873700e KS |
123 | /* Should opaque types be resolved? */ |
124 | ||
491144b5 | 125 | static bool opaque_type_resolution = true; |
2873700e | 126 | |
79bb1944 | 127 | /* See gdbtypes.h. */ |
2873700e KS |
128 | |
129 | unsigned int overload_debug = 0; | |
130 | ||
a451cb65 KS |
131 | /* A flag to enable strict type checking. */ |
132 | ||
491144b5 | 133 | static bool strict_type_checking = true; |
a451cb65 | 134 | |
2873700e | 135 | /* A function to show whether opaque types are resolved. */ |
5212577a | 136 | |
920d2a44 AC |
137 | static void |
138 | show_opaque_type_resolution (struct ui_file *file, int from_tty, | |
7ba81444 MS |
139 | struct cmd_list_element *c, |
140 | const char *value) | |
920d2a44 | 141 | { |
3e43a32a MS |
142 | fprintf_filtered (file, _("Resolution of opaque struct/class/union types " |
143 | "(if set before loading symbols) is %s.\n"), | |
920d2a44 AC |
144 | value); |
145 | } | |
146 | ||
2873700e | 147 | /* A function to show whether C++ overload debugging is enabled. */ |
5212577a | 148 | |
920d2a44 AC |
149 | static void |
150 | show_overload_debug (struct ui_file *file, int from_tty, | |
151 | struct cmd_list_element *c, const char *value) | |
152 | { | |
7ba81444 MS |
153 | fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"), |
154 | value); | |
920d2a44 | 155 | } |
c906108c | 156 | |
a451cb65 KS |
157 | /* A function to show the status of strict type checking. */ |
158 | ||
159 | static void | |
160 | show_strict_type_checking (struct ui_file *file, int from_tty, | |
161 | struct cmd_list_element *c, const char *value) | |
162 | { | |
163 | fprintf_filtered (file, _("Strict type checking is %s.\n"), value); | |
164 | } | |
165 | ||
5212577a | 166 | \f |
e9bb382b UW |
167 | /* Allocate a new OBJFILE-associated type structure and fill it |
168 | with some defaults. Space for the type structure is allocated | |
169 | on the objfile's objfile_obstack. */ | |
c906108c SS |
170 | |
171 | struct type * | |
fba45db2 | 172 | alloc_type (struct objfile *objfile) |
c906108c | 173 | { |
52f0bd74 | 174 | struct type *type; |
c906108c | 175 | |
e9bb382b UW |
176 | gdb_assert (objfile != NULL); |
177 | ||
7ba81444 | 178 | /* Alloc the structure and start off with all fields zeroed. */ |
e9bb382b UW |
179 | type = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct type); |
180 | TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (&objfile->objfile_obstack, | |
181 | struct main_type); | |
182 | OBJSTAT (objfile, n_types++); | |
c906108c | 183 | |
e9bb382b UW |
184 | TYPE_OBJFILE_OWNED (type) = 1; |
185 | TYPE_OWNER (type).objfile = objfile; | |
c906108c | 186 | |
7ba81444 | 187 | /* Initialize the fields that might not be zero. */ |
c906108c | 188 | |
67607e24 | 189 | type->set_code (TYPE_CODE_UNDEF); |
2fdde8f8 | 190 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
c906108c | 191 | |
c16abbde | 192 | return type; |
c906108c SS |
193 | } |
194 | ||
e9bb382b UW |
195 | /* Allocate a new GDBARCH-associated type structure and fill it |
196 | with some defaults. Space for the type structure is allocated | |
8f57eec2 | 197 | on the obstack associated with GDBARCH. */ |
e9bb382b UW |
198 | |
199 | struct type * | |
200 | alloc_type_arch (struct gdbarch *gdbarch) | |
201 | { | |
202 | struct type *type; | |
203 | ||
204 | gdb_assert (gdbarch != NULL); | |
205 | ||
206 | /* Alloc the structure and start off with all fields zeroed. */ | |
207 | ||
8f57eec2 PP |
208 | type = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct type); |
209 | TYPE_MAIN_TYPE (type) = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct main_type); | |
e9bb382b UW |
210 | |
211 | TYPE_OBJFILE_OWNED (type) = 0; | |
212 | TYPE_OWNER (type).gdbarch = gdbarch; | |
213 | ||
214 | /* Initialize the fields that might not be zero. */ | |
215 | ||
67607e24 | 216 | type->set_code (TYPE_CODE_UNDEF); |
e9bb382b UW |
217 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
218 | ||
219 | return type; | |
220 | } | |
221 | ||
222 | /* If TYPE is objfile-associated, allocate a new type structure | |
223 | associated with the same objfile. If TYPE is gdbarch-associated, | |
224 | allocate a new type structure associated with the same gdbarch. */ | |
225 | ||
226 | struct type * | |
227 | alloc_type_copy (const struct type *type) | |
228 | { | |
229 | if (TYPE_OBJFILE_OWNED (type)) | |
230 | return alloc_type (TYPE_OWNER (type).objfile); | |
231 | else | |
232 | return alloc_type_arch (TYPE_OWNER (type).gdbarch); | |
233 | } | |
234 | ||
235 | /* If TYPE is gdbarch-associated, return that architecture. | |
236 | If TYPE is objfile-associated, return that objfile's architecture. */ | |
237 | ||
238 | struct gdbarch * | |
239 | get_type_arch (const struct type *type) | |
240 | { | |
2fabdf33 AB |
241 | struct gdbarch *arch; |
242 | ||
e9bb382b | 243 | if (TYPE_OBJFILE_OWNED (type)) |
08feed99 | 244 | arch = TYPE_OWNER (type).objfile->arch (); |
e9bb382b | 245 | else |
2fabdf33 AB |
246 | arch = TYPE_OWNER (type).gdbarch; |
247 | ||
248 | /* The ARCH can be NULL if TYPE is associated with neither an objfile nor | |
249 | a gdbarch, however, this is very rare, and even then, in most cases | |
250 | that get_type_arch is called, we assume that a non-NULL value is | |
251 | returned. */ | |
252 | gdb_assert (arch != NULL); | |
253 | return arch; | |
e9bb382b UW |
254 | } |
255 | ||
99ad9427 YQ |
256 | /* See gdbtypes.h. */ |
257 | ||
258 | struct type * | |
259 | get_target_type (struct type *type) | |
260 | { | |
261 | if (type != NULL) | |
262 | { | |
263 | type = TYPE_TARGET_TYPE (type); | |
264 | if (type != NULL) | |
265 | type = check_typedef (type); | |
266 | } | |
267 | ||
268 | return type; | |
269 | } | |
270 | ||
2e056931 SM |
271 | /* See gdbtypes.h. */ |
272 | ||
273 | unsigned int | |
274 | type_length_units (struct type *type) | |
275 | { | |
276 | struct gdbarch *arch = get_type_arch (type); | |
277 | int unit_size = gdbarch_addressable_memory_unit_size (arch); | |
278 | ||
279 | return TYPE_LENGTH (type) / unit_size; | |
280 | } | |
281 | ||
2fdde8f8 DJ |
282 | /* Alloc a new type instance structure, fill it with some defaults, |
283 | and point it at OLDTYPE. Allocate the new type instance from the | |
284 | same place as OLDTYPE. */ | |
285 | ||
286 | static struct type * | |
287 | alloc_type_instance (struct type *oldtype) | |
288 | { | |
289 | struct type *type; | |
290 | ||
291 | /* Allocate the structure. */ | |
292 | ||
e9bb382b | 293 | if (! TYPE_OBJFILE_OWNED (oldtype)) |
2fabdf33 | 294 | type = GDBARCH_OBSTACK_ZALLOC (get_type_arch (oldtype), struct type); |
2fdde8f8 | 295 | else |
1deafd4e PA |
296 | type = OBSTACK_ZALLOC (&TYPE_OBJFILE (oldtype)->objfile_obstack, |
297 | struct type); | |
298 | ||
2fdde8f8 DJ |
299 | TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype); |
300 | ||
301 | TYPE_CHAIN (type) = type; /* Chain back to itself for now. */ | |
302 | ||
c16abbde | 303 | return type; |
2fdde8f8 DJ |
304 | } |
305 | ||
306 | /* Clear all remnants of the previous type at TYPE, in preparation for | |
e9bb382b | 307 | replacing it with something else. Preserve owner information. */ |
5212577a | 308 | |
2fdde8f8 DJ |
309 | static void |
310 | smash_type (struct type *type) | |
311 | { | |
e9bb382b UW |
312 | int objfile_owned = TYPE_OBJFILE_OWNED (type); |
313 | union type_owner owner = TYPE_OWNER (type); | |
314 | ||
2fdde8f8 DJ |
315 | memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
316 | ||
e9bb382b UW |
317 | /* Restore owner information. */ |
318 | TYPE_OBJFILE_OWNED (type) = objfile_owned; | |
319 | TYPE_OWNER (type) = owner; | |
320 | ||
2fdde8f8 DJ |
321 | /* For now, delete the rings. */ |
322 | TYPE_CHAIN (type) = type; | |
323 | ||
324 | /* For now, leave the pointer/reference types alone. */ | |
325 | } | |
326 | ||
c906108c SS |
327 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
328 | to a pointer to memory where the pointer type should be stored. | |
329 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
330 | We allocate new memory if needed. */ | |
331 | ||
332 | struct type * | |
fba45db2 | 333 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 334 | { |
52f0bd74 | 335 | struct type *ntype; /* New type */ |
053cb41b | 336 | struct type *chain; |
c906108c SS |
337 | |
338 | ntype = TYPE_POINTER_TYPE (type); | |
339 | ||
c5aa993b | 340 | if (ntype) |
c906108c | 341 | { |
c5aa993b | 342 | if (typeptr == 0) |
7ba81444 MS |
343 | return ntype; /* Don't care about alloc, |
344 | and have new type. */ | |
c906108c | 345 | else if (*typeptr == 0) |
c5aa993b | 346 | { |
7ba81444 | 347 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 348 | return ntype; |
c5aa993b | 349 | } |
c906108c SS |
350 | } |
351 | ||
352 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
353 | { | |
e9bb382b | 354 | ntype = alloc_type_copy (type); |
c906108c SS |
355 | if (typeptr) |
356 | *typeptr = ntype; | |
357 | } | |
7ba81444 | 358 | else /* We have storage, but need to reset it. */ |
c906108c SS |
359 | { |
360 | ntype = *typeptr; | |
053cb41b | 361 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 362 | smash_type (ntype); |
053cb41b | 363 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
364 | } |
365 | ||
366 | TYPE_TARGET_TYPE (ntype) = type; | |
367 | TYPE_POINTER_TYPE (type) = ntype; | |
368 | ||
5212577a | 369 | /* FIXME! Assumes the machine has only one representation for pointers! */ |
c906108c | 370 | |
50810684 UW |
371 | TYPE_LENGTH (ntype) |
372 | = gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
67607e24 | 373 | ntype->set_code (TYPE_CODE_PTR); |
c906108c | 374 | |
67b2adb2 | 375 | /* Mark pointers as unsigned. The target converts between pointers |
76e71323 | 376 | and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and |
7ba81444 | 377 | gdbarch_address_to_pointer. */ |
653223d3 | 378 | ntype->set_is_unsigned (true); |
c5aa993b | 379 | |
053cb41b JB |
380 | /* Update the length of all the other variants of this type. */ |
381 | chain = TYPE_CHAIN (ntype); | |
382 | while (chain != ntype) | |
383 | { | |
384 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
385 | chain = TYPE_CHAIN (chain); | |
386 | } | |
387 | ||
c906108c SS |
388 | return ntype; |
389 | } | |
390 | ||
391 | /* Given a type TYPE, return a type of pointers to that type. | |
392 | May need to construct such a type if this is the first use. */ | |
393 | ||
394 | struct type * | |
fba45db2 | 395 | lookup_pointer_type (struct type *type) |
c906108c | 396 | { |
c5aa993b | 397 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
398 | } |
399 | ||
7ba81444 MS |
400 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, |
401 | points to a pointer to memory where the reference type should be | |
402 | stored. If *TYPEPTR is zero, update it to point to the reference | |
3b224330 AV |
403 | type we return. We allocate new memory if needed. REFCODE denotes |
404 | the kind of reference type to lookup (lvalue or rvalue reference). */ | |
c906108c SS |
405 | |
406 | struct type * | |
3b224330 AV |
407 | make_reference_type (struct type *type, struct type **typeptr, |
408 | enum type_code refcode) | |
c906108c | 409 | { |
52f0bd74 | 410 | struct type *ntype; /* New type */ |
3b224330 | 411 | struct type **reftype; |
1e98b326 | 412 | struct type *chain; |
c906108c | 413 | |
3b224330 AV |
414 | gdb_assert (refcode == TYPE_CODE_REF || refcode == TYPE_CODE_RVALUE_REF); |
415 | ||
416 | ntype = (refcode == TYPE_CODE_REF ? TYPE_REFERENCE_TYPE (type) | |
417 | : TYPE_RVALUE_REFERENCE_TYPE (type)); | |
c906108c | 418 | |
c5aa993b | 419 | if (ntype) |
c906108c | 420 | { |
c5aa993b | 421 | if (typeptr == 0) |
7ba81444 MS |
422 | return ntype; /* Don't care about alloc, |
423 | and have new type. */ | |
c906108c | 424 | else if (*typeptr == 0) |
c5aa993b | 425 | { |
7ba81444 | 426 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 427 | return ntype; |
c5aa993b | 428 | } |
c906108c SS |
429 | } |
430 | ||
431 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
432 | { | |
e9bb382b | 433 | ntype = alloc_type_copy (type); |
c906108c SS |
434 | if (typeptr) |
435 | *typeptr = ntype; | |
436 | } | |
7ba81444 | 437 | else /* We have storage, but need to reset it. */ |
c906108c SS |
438 | { |
439 | ntype = *typeptr; | |
1e98b326 | 440 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 441 | smash_type (ntype); |
1e98b326 | 442 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
443 | } |
444 | ||
445 | TYPE_TARGET_TYPE (ntype) = type; | |
3b224330 AV |
446 | reftype = (refcode == TYPE_CODE_REF ? &TYPE_REFERENCE_TYPE (type) |
447 | : &TYPE_RVALUE_REFERENCE_TYPE (type)); | |
448 | ||
449 | *reftype = ntype; | |
c906108c | 450 | |
7ba81444 MS |
451 | /* FIXME! Assume the machine has only one representation for |
452 | references, and that it matches the (only) representation for | |
453 | pointers! */ | |
c906108c | 454 | |
50810684 UW |
455 | TYPE_LENGTH (ntype) = |
456 | gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
67607e24 | 457 | ntype->set_code (refcode); |
c5aa993b | 458 | |
3b224330 | 459 | *reftype = ntype; |
c906108c | 460 | |
1e98b326 JB |
461 | /* Update the length of all the other variants of this type. */ |
462 | chain = TYPE_CHAIN (ntype); | |
463 | while (chain != ntype) | |
464 | { | |
465 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
466 | chain = TYPE_CHAIN (chain); | |
467 | } | |
468 | ||
c906108c SS |
469 | return ntype; |
470 | } | |
471 | ||
7ba81444 MS |
472 | /* Same as above, but caller doesn't care about memory allocation |
473 | details. */ | |
c906108c SS |
474 | |
475 | struct type * | |
3b224330 AV |
476 | lookup_reference_type (struct type *type, enum type_code refcode) |
477 | { | |
478 | return make_reference_type (type, (struct type **) 0, refcode); | |
479 | } | |
480 | ||
481 | /* Lookup the lvalue reference type for the type TYPE. */ | |
482 | ||
483 | struct type * | |
484 | lookup_lvalue_reference_type (struct type *type) | |
485 | { | |
486 | return lookup_reference_type (type, TYPE_CODE_REF); | |
487 | } | |
488 | ||
489 | /* Lookup the rvalue reference type for the type TYPE. */ | |
490 | ||
491 | struct type * | |
492 | lookup_rvalue_reference_type (struct type *type) | |
c906108c | 493 | { |
3b224330 | 494 | return lookup_reference_type (type, TYPE_CODE_RVALUE_REF); |
c906108c SS |
495 | } |
496 | ||
7ba81444 MS |
497 | /* Lookup a function type that returns type TYPE. TYPEPTR, if |
498 | nonzero, points to a pointer to memory where the function type | |
499 | should be stored. If *TYPEPTR is zero, update it to point to the | |
0c8b41f1 | 500 | function type we return. We allocate new memory if needed. */ |
c906108c SS |
501 | |
502 | struct type * | |
0c8b41f1 | 503 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 504 | { |
52f0bd74 | 505 | struct type *ntype; /* New type */ |
c906108c SS |
506 | |
507 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
508 | { | |
e9bb382b | 509 | ntype = alloc_type_copy (type); |
c906108c SS |
510 | if (typeptr) |
511 | *typeptr = ntype; | |
512 | } | |
7ba81444 | 513 | else /* We have storage, but need to reset it. */ |
c906108c SS |
514 | { |
515 | ntype = *typeptr; | |
2fdde8f8 | 516 | smash_type (ntype); |
c906108c SS |
517 | } |
518 | ||
519 | TYPE_TARGET_TYPE (ntype) = type; | |
520 | ||
521 | TYPE_LENGTH (ntype) = 1; | |
67607e24 | 522 | ntype->set_code (TYPE_CODE_FUNC); |
c5aa993b | 523 | |
b6cdc2c1 JK |
524 | INIT_FUNC_SPECIFIC (ntype); |
525 | ||
c906108c SS |
526 | return ntype; |
527 | } | |
528 | ||
c906108c SS |
529 | /* Given a type TYPE, return a type of functions that return that type. |
530 | May need to construct such a type if this is the first use. */ | |
531 | ||
532 | struct type * | |
fba45db2 | 533 | lookup_function_type (struct type *type) |
c906108c | 534 | { |
0c8b41f1 | 535 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
536 | } |
537 | ||
71918a86 | 538 | /* Given a type TYPE and argument types, return the appropriate |
a6fb9c08 TT |
539 | function type. If the final type in PARAM_TYPES is NULL, make a |
540 | varargs function. */ | |
71918a86 TT |
541 | |
542 | struct type * | |
543 | lookup_function_type_with_arguments (struct type *type, | |
544 | int nparams, | |
545 | struct type **param_types) | |
546 | { | |
547 | struct type *fn = make_function_type (type, (struct type **) 0); | |
548 | int i; | |
549 | ||
e314d629 | 550 | if (nparams > 0) |
a6fb9c08 | 551 | { |
e314d629 TT |
552 | if (param_types[nparams - 1] == NULL) |
553 | { | |
554 | --nparams; | |
1d6286ed | 555 | fn->set_has_varargs (true); |
e314d629 | 556 | } |
78134374 | 557 | else if (check_typedef (param_types[nparams - 1])->code () |
e314d629 TT |
558 | == TYPE_CODE_VOID) |
559 | { | |
560 | --nparams; | |
561 | /* Caller should have ensured this. */ | |
562 | gdb_assert (nparams == 0); | |
27e69b7a | 563 | fn->set_is_prototyped (true); |
e314d629 | 564 | } |
54990598 | 565 | else |
27e69b7a | 566 | fn->set_is_prototyped (true); |
a6fb9c08 TT |
567 | } |
568 | ||
5e33d5f4 | 569 | fn->set_num_fields (nparams); |
3cabb6b0 SM |
570 | fn->set_fields |
571 | ((struct field *) TYPE_ZALLOC (fn, nparams * sizeof (struct field))); | |
71918a86 | 572 | for (i = 0; i < nparams; ++i) |
5d14b6e5 | 573 | fn->field (i).set_type (param_types[i]); |
71918a86 TT |
574 | |
575 | return fn; | |
576 | } | |
577 | ||
69896a2c PA |
578 | /* Identify address space identifier by name -- return a |
579 | type_instance_flags. */ | |
5212577a | 580 | |
314ad88d | 581 | type_instance_flags |
69896a2c PA |
582 | address_space_name_to_type_instance_flags (struct gdbarch *gdbarch, |
583 | const char *space_identifier) | |
47663de5 | 584 | { |
314ad88d | 585 | type_instance_flags type_flags; |
d8734c88 | 586 | |
7ba81444 | 587 | /* Check for known address space delimiters. */ |
47663de5 | 588 | if (!strcmp (space_identifier, "code")) |
876cecd0 | 589 | return TYPE_INSTANCE_FLAG_CODE_SPACE; |
47663de5 | 590 | else if (!strcmp (space_identifier, "data")) |
876cecd0 | 591 | return TYPE_INSTANCE_FLAG_DATA_SPACE; |
5f11f355 AC |
592 | else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
593 | && gdbarch_address_class_name_to_type_flags (gdbarch, | |
594 | space_identifier, | |
595 | &type_flags)) | |
8b2dbe47 | 596 | return type_flags; |
47663de5 | 597 | else |
8a3fe4f8 | 598 | error (_("Unknown address space specifier: \"%s\""), space_identifier); |
47663de5 MS |
599 | } |
600 | ||
69896a2c PA |
601 | /* Identify address space identifier by type_instance_flags and return |
602 | the string version of the adress space name. */ | |
47663de5 | 603 | |
321432c0 | 604 | const char * |
69896a2c PA |
605 | address_space_type_instance_flags_to_name (struct gdbarch *gdbarch, |
606 | type_instance_flags space_flag) | |
47663de5 | 607 | { |
876cecd0 | 608 | if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE) |
47663de5 | 609 | return "code"; |
876cecd0 | 610 | else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE) |
47663de5 | 611 | return "data"; |
876cecd0 | 612 | else if ((space_flag & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) |
5f11f355 AC |
613 | && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
614 | return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); | |
47663de5 MS |
615 | else |
616 | return NULL; | |
617 | } | |
618 | ||
2fdde8f8 | 619 | /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
ad766c0a JB |
620 | |
621 | If STORAGE is non-NULL, create the new type instance there. | |
622 | STORAGE must be in the same obstack as TYPE. */ | |
47663de5 | 623 | |
b9362cc7 | 624 | static struct type * |
314ad88d | 625 | make_qualified_type (struct type *type, type_instance_flags new_flags, |
2fdde8f8 | 626 | struct type *storage) |
47663de5 MS |
627 | { |
628 | struct type *ntype; | |
629 | ||
630 | ntype = type; | |
5f61c20e JK |
631 | do |
632 | { | |
10242f36 | 633 | if (ntype->instance_flags () == new_flags) |
5f61c20e JK |
634 | return ntype; |
635 | ntype = TYPE_CHAIN (ntype); | |
636 | } | |
637 | while (ntype != type); | |
47663de5 | 638 | |
2fdde8f8 DJ |
639 | /* Create a new type instance. */ |
640 | if (storage == NULL) | |
641 | ntype = alloc_type_instance (type); | |
642 | else | |
643 | { | |
7ba81444 MS |
644 | /* If STORAGE was provided, it had better be in the same objfile |
645 | as TYPE. Otherwise, we can't link it into TYPE's cv chain: | |
646 | if one objfile is freed and the other kept, we'd have | |
647 | dangling pointers. */ | |
ad766c0a JB |
648 | gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage)); |
649 | ||
2fdde8f8 DJ |
650 | ntype = storage; |
651 | TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); | |
652 | TYPE_CHAIN (ntype) = ntype; | |
653 | } | |
47663de5 MS |
654 | |
655 | /* Pointers or references to the original type are not relevant to | |
2fdde8f8 | 656 | the new type. */ |
47663de5 MS |
657 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
658 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
47663de5 | 659 | |
2fdde8f8 DJ |
660 | /* Chain the new qualified type to the old type. */ |
661 | TYPE_CHAIN (ntype) = TYPE_CHAIN (type); | |
662 | TYPE_CHAIN (type) = ntype; | |
663 | ||
664 | /* Now set the instance flags and return the new type. */ | |
314ad88d | 665 | ntype->set_instance_flags (new_flags); |
47663de5 | 666 | |
ab5d3da6 KB |
667 | /* Set length of new type to that of the original type. */ |
668 | TYPE_LENGTH (ntype) = TYPE_LENGTH (type); | |
669 | ||
47663de5 MS |
670 | return ntype; |
671 | } | |
672 | ||
2fdde8f8 DJ |
673 | /* Make an address-space-delimited variant of a type -- a type that |
674 | is identical to the one supplied except that it has an address | |
675 | space attribute attached to it (such as "code" or "data"). | |
676 | ||
7ba81444 MS |
677 | The space attributes "code" and "data" are for Harvard |
678 | architectures. The address space attributes are for architectures | |
679 | which have alternately sized pointers or pointers with alternate | |
680 | representations. */ | |
2fdde8f8 DJ |
681 | |
682 | struct type * | |
314ad88d PA |
683 | make_type_with_address_space (struct type *type, |
684 | type_instance_flags space_flag) | |
2fdde8f8 | 685 | { |
314ad88d PA |
686 | type_instance_flags new_flags = ((type->instance_flags () |
687 | & ~(TYPE_INSTANCE_FLAG_CODE_SPACE | |
688 | | TYPE_INSTANCE_FLAG_DATA_SPACE | |
689 | | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)) | |
690 | | space_flag); | |
2fdde8f8 DJ |
691 | |
692 | return make_qualified_type (type, new_flags, NULL); | |
693 | } | |
c906108c SS |
694 | |
695 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
696 | one supplied except that it may have const or volatile attributes | |
697 | CNST is a flag for setting the const attribute | |
698 | VOLTL is a flag for setting the volatile attribute | |
699 | TYPE is the base type whose variant we are creating. | |
c906108c | 700 | |
ad766c0a JB |
701 | If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to |
702 | storage to hold the new qualified type; *TYPEPTR and TYPE must be | |
703 | in the same objfile. Otherwise, allocate fresh memory for the new | |
704 | type whereever TYPE lives. If TYPEPTR is non-zero, set it to the | |
705 | new type we construct. */ | |
5212577a | 706 | |
c906108c | 707 | struct type * |
7ba81444 MS |
708 | make_cv_type (int cnst, int voltl, |
709 | struct type *type, | |
710 | struct type **typeptr) | |
c906108c | 711 | { |
52f0bd74 | 712 | struct type *ntype; /* New type */ |
c906108c | 713 | |
314ad88d PA |
714 | type_instance_flags new_flags = (type->instance_flags () |
715 | & ~(TYPE_INSTANCE_FLAG_CONST | |
716 | | TYPE_INSTANCE_FLAG_VOLATILE)); | |
c906108c | 717 | |
c906108c | 718 | if (cnst) |
876cecd0 | 719 | new_flags |= TYPE_INSTANCE_FLAG_CONST; |
c906108c SS |
720 | |
721 | if (voltl) | |
876cecd0 | 722 | new_flags |= TYPE_INSTANCE_FLAG_VOLATILE; |
a02fd225 | 723 | |
2fdde8f8 | 724 | if (typeptr && *typeptr != NULL) |
a02fd225 | 725 | { |
ad766c0a JB |
726 | /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
727 | a C-V variant chain that threads across objfiles: if one | |
728 | objfile gets freed, then the other has a broken C-V chain. | |
729 | ||
730 | This code used to try to copy over the main type from TYPE to | |
731 | *TYPEPTR if they were in different objfiles, but that's | |
732 | wrong, too: TYPE may have a field list or member function | |
733 | lists, which refer to types of their own, etc. etc. The | |
734 | whole shebang would need to be copied over recursively; you | |
735 | can't have inter-objfile pointers. The only thing to do is | |
736 | to leave stub types as stub types, and look them up afresh by | |
737 | name each time you encounter them. */ | |
738 | gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type)); | |
2fdde8f8 DJ |
739 | } |
740 | ||
7ba81444 MS |
741 | ntype = make_qualified_type (type, new_flags, |
742 | typeptr ? *typeptr : NULL); | |
c906108c | 743 | |
2fdde8f8 DJ |
744 | if (typeptr != NULL) |
745 | *typeptr = ntype; | |
a02fd225 | 746 | |
2fdde8f8 | 747 | return ntype; |
a02fd225 | 748 | } |
c906108c | 749 | |
06d66ee9 TT |
750 | /* Make a 'restrict'-qualified version of TYPE. */ |
751 | ||
752 | struct type * | |
753 | make_restrict_type (struct type *type) | |
754 | { | |
755 | return make_qualified_type (type, | |
10242f36 | 756 | (type->instance_flags () |
06d66ee9 TT |
757 | | TYPE_INSTANCE_FLAG_RESTRICT), |
758 | NULL); | |
759 | } | |
760 | ||
f1660027 TT |
761 | /* Make a type without const, volatile, or restrict. */ |
762 | ||
763 | struct type * | |
764 | make_unqualified_type (struct type *type) | |
765 | { | |
766 | return make_qualified_type (type, | |
10242f36 | 767 | (type->instance_flags () |
f1660027 TT |
768 | & ~(TYPE_INSTANCE_FLAG_CONST |
769 | | TYPE_INSTANCE_FLAG_VOLATILE | |
770 | | TYPE_INSTANCE_FLAG_RESTRICT)), | |
771 | NULL); | |
772 | } | |
773 | ||
a2c2acaf MW |
774 | /* Make a '_Atomic'-qualified version of TYPE. */ |
775 | ||
776 | struct type * | |
777 | make_atomic_type (struct type *type) | |
778 | { | |
779 | return make_qualified_type (type, | |
10242f36 | 780 | (type->instance_flags () |
a2c2acaf MW |
781 | | TYPE_INSTANCE_FLAG_ATOMIC), |
782 | NULL); | |
783 | } | |
784 | ||
2fdde8f8 DJ |
785 | /* Replace the contents of ntype with the type *type. This changes the |
786 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
787 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 788 | |
cda6c68a JB |
789 | In order to build recursive types, it's inevitable that we'll need |
790 | to update types in place --- but this sort of indiscriminate | |
791 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
792 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
793 | clear if more steps are needed. */ | |
5212577a | 794 | |
dd6bda65 DJ |
795 | void |
796 | replace_type (struct type *ntype, struct type *type) | |
797 | { | |
ab5d3da6 | 798 | struct type *chain; |
dd6bda65 | 799 | |
ad766c0a JB |
800 | /* These two types had better be in the same objfile. Otherwise, |
801 | the assignment of one type's main type structure to the other | |
802 | will produce a type with references to objects (names; field | |
803 | lists; etc.) allocated on an objfile other than its own. */ | |
e46dd0f4 | 804 | gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (type)); |
ad766c0a | 805 | |
2fdde8f8 | 806 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 807 | |
7ba81444 MS |
808 | /* The type length is not a part of the main type. Update it for |
809 | each type on the variant chain. */ | |
ab5d3da6 | 810 | chain = ntype; |
5f61c20e JK |
811 | do |
812 | { | |
813 | /* Assert that this element of the chain has no address-class bits | |
814 | set in its flags. Such type variants might have type lengths | |
815 | which are supposed to be different from the non-address-class | |
816 | variants. This assertion shouldn't ever be triggered because | |
817 | symbol readers which do construct address-class variants don't | |
818 | call replace_type(). */ | |
819 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
820 | ||
821 | TYPE_LENGTH (chain) = TYPE_LENGTH (type); | |
822 | chain = TYPE_CHAIN (chain); | |
823 | } | |
824 | while (ntype != chain); | |
ab5d3da6 | 825 | |
2fdde8f8 DJ |
826 | /* Assert that the two types have equivalent instance qualifiers. |
827 | This should be true for at least all of our debug readers. */ | |
10242f36 | 828 | gdb_assert (ntype->instance_flags () == type->instance_flags ()); |
dd6bda65 DJ |
829 | } |
830 | ||
c906108c SS |
831 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
832 | May need to construct such a type if this is the first use. | |
833 | The TYPE is the type of the member. The DOMAIN is the type | |
834 | of the aggregate that the member belongs to. */ | |
835 | ||
836 | struct type * | |
0d5de010 | 837 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 838 | { |
52f0bd74 | 839 | struct type *mtype; |
c906108c | 840 | |
e9bb382b | 841 | mtype = alloc_type_copy (type); |
0d5de010 | 842 | smash_to_memberptr_type (mtype, domain, type); |
c16abbde | 843 | return mtype; |
c906108c SS |
844 | } |
845 | ||
0d5de010 DJ |
846 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
847 | ||
848 | struct type * | |
849 | lookup_methodptr_type (struct type *to_type) | |
850 | { | |
851 | struct type *mtype; | |
852 | ||
e9bb382b | 853 | mtype = alloc_type_copy (to_type); |
0b92b5bb | 854 | smash_to_methodptr_type (mtype, to_type); |
0d5de010 DJ |
855 | return mtype; |
856 | } | |
857 | ||
7ba81444 MS |
858 | /* Allocate a stub method whose return type is TYPE. This apparently |
859 | happens for speed of symbol reading, since parsing out the | |
860 | arguments to the method is cpu-intensive, the way we are doing it. | |
861 | So, we will fill in arguments later. This always returns a fresh | |
862 | type. */ | |
c906108c SS |
863 | |
864 | struct type * | |
fba45db2 | 865 | allocate_stub_method (struct type *type) |
c906108c SS |
866 | { |
867 | struct type *mtype; | |
868 | ||
e9bb382b | 869 | mtype = alloc_type_copy (type); |
67607e24 | 870 | mtype->set_code (TYPE_CODE_METHOD); |
e9bb382b | 871 | TYPE_LENGTH (mtype) = 1; |
b4b73759 | 872 | mtype->set_is_stub (true); |
c906108c | 873 | TYPE_TARGET_TYPE (mtype) = type; |
4bfb94b8 | 874 | /* TYPE_SELF_TYPE (mtype) = unknown yet */ |
c16abbde | 875 | return mtype; |
c906108c SS |
876 | } |
877 | ||
0f59d5fc PA |
878 | /* See gdbtypes.h. */ |
879 | ||
880 | bool | |
881 | operator== (const dynamic_prop &l, const dynamic_prop &r) | |
882 | { | |
8c2e4e06 | 883 | if (l.kind () != r.kind ()) |
0f59d5fc PA |
884 | return false; |
885 | ||
8c2e4e06 | 886 | switch (l.kind ()) |
0f59d5fc PA |
887 | { |
888 | case PROP_UNDEFINED: | |
889 | return true; | |
890 | case PROP_CONST: | |
8c2e4e06 | 891 | return l.const_val () == r.const_val (); |
0f59d5fc PA |
892 | case PROP_ADDR_OFFSET: |
893 | case PROP_LOCEXPR: | |
894 | case PROP_LOCLIST: | |
8c2e4e06 | 895 | return l.baton () == r.baton (); |
ef83a141 | 896 | case PROP_VARIANT_PARTS: |
8c2e4e06 | 897 | return l.variant_parts () == r.variant_parts (); |
ef83a141 | 898 | case PROP_TYPE: |
8c2e4e06 | 899 | return l.original_type () == r.original_type (); |
0f59d5fc PA |
900 | } |
901 | ||
902 | gdb_assert_not_reached ("unhandled dynamic_prop kind"); | |
903 | } | |
904 | ||
905 | /* See gdbtypes.h. */ | |
906 | ||
907 | bool | |
908 | operator== (const range_bounds &l, const range_bounds &r) | |
909 | { | |
910 | #define FIELD_EQ(FIELD) (l.FIELD == r.FIELD) | |
911 | ||
912 | return (FIELD_EQ (low) | |
913 | && FIELD_EQ (high) | |
914 | && FIELD_EQ (flag_upper_bound_is_count) | |
4e962e74 TT |
915 | && FIELD_EQ (flag_bound_evaluated) |
916 | && FIELD_EQ (bias)); | |
0f59d5fc PA |
917 | |
918 | #undef FIELD_EQ | |
919 | } | |
920 | ||
729efb13 SA |
921 | /* Create a range type with a dynamic range from LOW_BOUND to |
922 | HIGH_BOUND, inclusive. See create_range_type for further details. */ | |
c906108c SS |
923 | |
924 | struct type * | |
729efb13 SA |
925 | create_range_type (struct type *result_type, struct type *index_type, |
926 | const struct dynamic_prop *low_bound, | |
4e962e74 TT |
927 | const struct dynamic_prop *high_bound, |
928 | LONGEST bias) | |
c906108c | 929 | { |
b86352cf AB |
930 | /* The INDEX_TYPE should be a type capable of holding the upper and lower |
931 | bounds, as such a zero sized, or void type makes no sense. */ | |
78134374 | 932 | gdb_assert (index_type->code () != TYPE_CODE_VOID); |
b86352cf AB |
933 | gdb_assert (TYPE_LENGTH (index_type) > 0); |
934 | ||
c906108c | 935 | if (result_type == NULL) |
e9bb382b | 936 | result_type = alloc_type_copy (index_type); |
67607e24 | 937 | result_type->set_code (TYPE_CODE_RANGE); |
c906108c | 938 | TYPE_TARGET_TYPE (result_type) = index_type; |
e46d3488 | 939 | if (index_type->is_stub ()) |
8f53807e | 940 | result_type->set_target_is_stub (true); |
c906108c SS |
941 | else |
942 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
729efb13 | 943 | |
c4dfcb36 SM |
944 | range_bounds *bounds |
945 | = (struct range_bounds *) TYPE_ZALLOC (result_type, sizeof (range_bounds)); | |
946 | bounds->low = *low_bound; | |
947 | bounds->high = *high_bound; | |
948 | bounds->bias = bias; | |
8c2e4e06 | 949 | bounds->stride.set_const_val (0); |
c4dfcb36 SM |
950 | |
951 | result_type->set_bounds (bounds); | |
5bbd8269 | 952 | |
6390859c TT |
953 | /* Note that the signed-ness of a range type can't simply be copied |
954 | from the underlying type. Consider a case where the underlying | |
955 | type is 'int', but the range type can hold 0..65535, and where | |
956 | the range is further specified to fit into 16 bits. In this | |
957 | case, if we copy the underlying type's sign, then reading some | |
958 | range values will cause an unwanted sign extension. So, we have | |
959 | some heuristics here instead. */ | |
960 | if (low_bound->kind () == PROP_CONST && low_bound->const_val () >= 0) | |
961 | result_type->set_is_unsigned (true); | |
962 | /* Ada allows the declaration of range types whose upper bound is | |
963 | less than the lower bound, so checking the lower bound is not | |
964 | enough. Make sure we do not mark a range type whose upper bound | |
965 | is negative as unsigned. */ | |
966 | if (high_bound->kind () == PROP_CONST && high_bound->const_val () < 0) | |
967 | result_type->set_is_unsigned (false); | |
968 | ||
db558e34 SM |
969 | result_type->set_endianity_is_not_default |
970 | (index_type->endianity_is_not_default ()); | |
a05cf17a | 971 | |
262452ec | 972 | return result_type; |
c906108c SS |
973 | } |
974 | ||
5bbd8269 AB |
975 | /* See gdbtypes.h. */ |
976 | ||
977 | struct type * | |
978 | create_range_type_with_stride (struct type *result_type, | |
979 | struct type *index_type, | |
980 | const struct dynamic_prop *low_bound, | |
981 | const struct dynamic_prop *high_bound, | |
982 | LONGEST bias, | |
983 | const struct dynamic_prop *stride, | |
984 | bool byte_stride_p) | |
985 | { | |
986 | result_type = create_range_type (result_type, index_type, low_bound, | |
987 | high_bound, bias); | |
988 | ||
989 | gdb_assert (stride != nullptr); | |
599088e3 SM |
990 | result_type->bounds ()->stride = *stride; |
991 | result_type->bounds ()->flag_is_byte_stride = byte_stride_p; | |
5bbd8269 AB |
992 | |
993 | return result_type; | |
994 | } | |
995 | ||
996 | ||
997 | ||
729efb13 SA |
998 | /* Create a range type using either a blank type supplied in |
999 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
1000 | INDEX_TYPE. | |
1001 | ||
1002 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND | |
1003 | to HIGH_BOUND, inclusive. | |
1004 | ||
1005 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
1006 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
1007 | ||
1008 | struct type * | |
1009 | create_static_range_type (struct type *result_type, struct type *index_type, | |
1010 | LONGEST low_bound, LONGEST high_bound) | |
1011 | { | |
1012 | struct dynamic_prop low, high; | |
1013 | ||
8c2e4e06 SM |
1014 | low.set_const_val (low_bound); |
1015 | high.set_const_val (high_bound); | |
729efb13 | 1016 | |
4e962e74 | 1017 | result_type = create_range_type (result_type, index_type, &low, &high, 0); |
729efb13 SA |
1018 | |
1019 | return result_type; | |
1020 | } | |
1021 | ||
80180f79 SA |
1022 | /* Predicate tests whether BOUNDS are static. Returns 1 if all bounds values |
1023 | are static, otherwise returns 0. */ | |
1024 | ||
5bbd8269 | 1025 | static bool |
80180f79 SA |
1026 | has_static_range (const struct range_bounds *bounds) |
1027 | { | |
5bbd8269 AB |
1028 | /* If the range doesn't have a defined stride then its stride field will |
1029 | be initialized to the constant 0. */ | |
8c2e4e06 SM |
1030 | return (bounds->low.kind () == PROP_CONST |
1031 | && bounds->high.kind () == PROP_CONST | |
1032 | && bounds->stride.kind () == PROP_CONST); | |
80180f79 SA |
1033 | } |
1034 | ||
1035 | ||
7ba81444 | 1036 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
7c6f2712 SM |
1037 | TYPE. |
1038 | ||
1039 | Return 1 if type is a range type with two defined, constant bounds. | |
1040 | Else, return 0 if it is discrete (and bounds will fit in LONGEST). | |
1041 | Else, return -1. */ | |
c906108c SS |
1042 | |
1043 | int | |
fba45db2 | 1044 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c | 1045 | { |
f168693b | 1046 | type = check_typedef (type); |
78134374 | 1047 | switch (type->code ()) |
c906108c SS |
1048 | { |
1049 | case TYPE_CODE_RANGE: | |
7c6f2712 SM |
1050 | /* This function currently only works for ranges with two defined, |
1051 | constant bounds. */ | |
1052 | if (type->bounds ()->low.kind () != PROP_CONST | |
1053 | || type->bounds ()->high.kind () != PROP_CONST) | |
1054 | return -1; | |
1055 | ||
5537ddd0 SM |
1056 | *lowp = type->bounds ()->low.const_val (); |
1057 | *highp = type->bounds ()->high.const_val (); | |
7c6f2712 | 1058 | |
53a47a3e TT |
1059 | if (TYPE_TARGET_TYPE (type)->code () == TYPE_CODE_ENUM) |
1060 | { | |
1061 | if (!discrete_position (TYPE_TARGET_TYPE (type), *lowp, lowp) | |
1062 | || ! discrete_position (TYPE_TARGET_TYPE (type), *highp, highp)) | |
1063 | return 0; | |
1064 | } | |
c906108c SS |
1065 | return 1; |
1066 | case TYPE_CODE_ENUM: | |
1f704f76 | 1067 | if (type->num_fields () > 0) |
c906108c SS |
1068 | { |
1069 | /* The enums may not be sorted by value, so search all | |
0963b4bd | 1070 | entries. */ |
c906108c SS |
1071 | int i; |
1072 | ||
14e75d8e | 1073 | *lowp = *highp = TYPE_FIELD_ENUMVAL (type, 0); |
1f704f76 | 1074 | for (i = 0; i < type->num_fields (); i++) |
c906108c | 1075 | { |
14e75d8e JK |
1076 | if (TYPE_FIELD_ENUMVAL (type, i) < *lowp) |
1077 | *lowp = TYPE_FIELD_ENUMVAL (type, i); | |
1078 | if (TYPE_FIELD_ENUMVAL (type, i) > *highp) | |
1079 | *highp = TYPE_FIELD_ENUMVAL (type, i); | |
c906108c SS |
1080 | } |
1081 | ||
7ba81444 | 1082 | /* Set unsigned indicator if warranted. */ |
c5aa993b | 1083 | if (*lowp >= 0) |
653223d3 | 1084 | type->set_is_unsigned (true); |
c906108c SS |
1085 | } |
1086 | else | |
1087 | { | |
1088 | *lowp = 0; | |
1089 | *highp = -1; | |
1090 | } | |
1091 | return 0; | |
1092 | case TYPE_CODE_BOOL: | |
1093 | *lowp = 0; | |
1094 | *highp = 1; | |
1095 | return 0; | |
1096 | case TYPE_CODE_INT: | |
c5aa993b | 1097 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c | 1098 | return -1; |
c6d940a9 | 1099 | if (!type->is_unsigned ()) |
c906108c | 1100 | { |
c5aa993b | 1101 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
1102 | *highp = -*lowp - 1; |
1103 | return 0; | |
1104 | } | |
86a73007 | 1105 | /* fall through */ |
c906108c SS |
1106 | case TYPE_CODE_CHAR: |
1107 | *lowp = 0; | |
1108 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 | 1109 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
7ba81444 | 1110 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
c906108c SS |
1111 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
1112 | *highp = (*highp - 1) | *highp; | |
1113 | return 0; | |
1114 | default: | |
1115 | return -1; | |
1116 | } | |
1117 | } | |
1118 | ||
dbc98a8b KW |
1119 | /* Assuming TYPE is a simple, non-empty array type, compute its upper |
1120 | and lower bound. Save the low bound into LOW_BOUND if not NULL. | |
1121 | Save the high bound into HIGH_BOUND if not NULL. | |
1122 | ||
0963b4bd | 1123 | Return 1 if the operation was successful. Return zero otherwise, |
7c6f2712 | 1124 | in which case the values of LOW_BOUND and HIGH_BOUNDS are unmodified. */ |
dbc98a8b KW |
1125 | |
1126 | int | |
1127 | get_array_bounds (struct type *type, LONGEST *low_bound, LONGEST *high_bound) | |
1128 | { | |
3d967001 | 1129 | struct type *index = type->index_type (); |
dbc98a8b KW |
1130 | LONGEST low = 0; |
1131 | LONGEST high = 0; | |
1132 | int res; | |
1133 | ||
1134 | if (index == NULL) | |
1135 | return 0; | |
1136 | ||
1137 | res = get_discrete_bounds (index, &low, &high); | |
1138 | if (res == -1) | |
1139 | return 0; | |
1140 | ||
dbc98a8b KW |
1141 | if (low_bound) |
1142 | *low_bound = low; | |
1143 | ||
1144 | if (high_bound) | |
1145 | *high_bound = high; | |
1146 | ||
1147 | return 1; | |
1148 | } | |
1149 | ||
aa715135 JG |
1150 | /* Assuming that TYPE is a discrete type and VAL is a valid integer |
1151 | representation of a value of this type, save the corresponding | |
1152 | position number in POS. | |
1153 | ||
1154 | Its differs from VAL only in the case of enumeration types. In | |
1155 | this case, the position number of the value of the first listed | |
1156 | enumeration literal is zero; the position number of the value of | |
1157 | each subsequent enumeration literal is one more than that of its | |
1158 | predecessor in the list. | |
1159 | ||
1160 | Return 1 if the operation was successful. Return zero otherwise, | |
1161 | in which case the value of POS is unmodified. | |
1162 | */ | |
1163 | ||
1164 | int | |
1165 | discrete_position (struct type *type, LONGEST val, LONGEST *pos) | |
1166 | { | |
0bc2354b TT |
1167 | if (type->code () == TYPE_CODE_RANGE) |
1168 | type = TYPE_TARGET_TYPE (type); | |
1169 | ||
78134374 | 1170 | if (type->code () == TYPE_CODE_ENUM) |
aa715135 JG |
1171 | { |
1172 | int i; | |
1173 | ||
1f704f76 | 1174 | for (i = 0; i < type->num_fields (); i += 1) |
aa715135 JG |
1175 | { |
1176 | if (val == TYPE_FIELD_ENUMVAL (type, i)) | |
1177 | { | |
1178 | *pos = i; | |
1179 | return 1; | |
1180 | } | |
1181 | } | |
1182 | /* Invalid enumeration value. */ | |
1183 | return 0; | |
1184 | } | |
1185 | else | |
1186 | { | |
1187 | *pos = val; | |
1188 | return 1; | |
1189 | } | |
1190 | } | |
1191 | ||
8dbb1375 HD |
1192 | /* If the array TYPE has static bounds calculate and update its |
1193 | size, then return true. Otherwise return false and leave TYPE | |
1194 | unchanged. */ | |
1195 | ||
1196 | static bool | |
1197 | update_static_array_size (struct type *type) | |
1198 | { | |
78134374 | 1199 | gdb_assert (type->code () == TYPE_CODE_ARRAY); |
8dbb1375 | 1200 | |
3d967001 | 1201 | struct type *range_type = type->index_type (); |
8dbb1375 | 1202 | |
24e99c6c | 1203 | if (type->dyn_prop (DYN_PROP_BYTE_STRIDE) == nullptr |
599088e3 | 1204 | && has_static_range (range_type->bounds ()) |
8dbb1375 HD |
1205 | && (!type_not_associated (type) |
1206 | && !type_not_allocated (type))) | |
1207 | { | |
1208 | LONGEST low_bound, high_bound; | |
1209 | int stride; | |
1210 | struct type *element_type; | |
1211 | ||
1212 | /* If the array itself doesn't provide a stride value then take | |
1213 | whatever stride the range provides. Don't update BIT_STRIDE as | |
1214 | we don't want to place the stride value from the range into this | |
1215 | arrays bit size field. */ | |
1216 | stride = TYPE_FIELD_BITSIZE (type, 0); | |
1217 | if (stride == 0) | |
107406b7 | 1218 | stride = range_type->bit_stride (); |
8dbb1375 HD |
1219 | |
1220 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
1221 | low_bound = high_bound = 0; | |
1222 | element_type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1223 | /* Be careful when setting the array length. Ada arrays can be | |
1224 | empty arrays with the high_bound being smaller than the low_bound. | |
1225 | In such cases, the array length should be zero. */ | |
1226 | if (high_bound < low_bound) | |
1227 | TYPE_LENGTH (type) = 0; | |
1228 | else if (stride != 0) | |
1229 | { | |
1230 | /* Ensure that the type length is always positive, even in the | |
1231 | case where (for example in Fortran) we have a negative | |
1232 | stride. It is possible to have a single element array with a | |
1233 | negative stride in Fortran (this doesn't mean anything | |
1234 | special, it's still just a single element array) so do | |
1235 | consider that case when touching this code. */ | |
1236 | LONGEST element_count = std::abs (high_bound - low_bound + 1); | |
1237 | TYPE_LENGTH (type) | |
1238 | = ((std::abs (stride) * element_count) + 7) / 8; | |
1239 | } | |
1240 | else | |
1241 | TYPE_LENGTH (type) = | |
1242 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
1243 | ||
1244 | return true; | |
1245 | } | |
1246 | ||
1247 | return false; | |
1248 | } | |
1249 | ||
7ba81444 MS |
1250 | /* Create an array type using either a blank type supplied in |
1251 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
1252 | RANGE_TYPE. | |
c906108c SS |
1253 | |
1254 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
1255 | RANGE_TYPE. | |
1256 | ||
a405673c JB |
1257 | BYTE_STRIDE_PROP, when not NULL, provides the array's byte stride. |
1258 | This byte stride property is added to the resulting array type | |
1259 | as a DYN_PROP_BYTE_STRIDE. As a consequence, the BYTE_STRIDE_PROP | |
1260 | argument can only be used to create types that are objfile-owned | |
1261 | (see add_dyn_prop), meaning that either this function must be called | |
1262 | with an objfile-owned RESULT_TYPE, or an objfile-owned RANGE_TYPE. | |
1263 | ||
1264 | BIT_STRIDE is taken into account only when BYTE_STRIDE_PROP is NULL. | |
dc53a7ad JB |
1265 | If BIT_STRIDE is not zero, build a packed array type whose element |
1266 | size is BIT_STRIDE. Otherwise, ignore this parameter. | |
1267 | ||
7ba81444 MS |
1268 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1269 | sure it is TYPE_CODE_UNDEF before we bash it into an array | |
1270 | type? */ | |
c906108c SS |
1271 | |
1272 | struct type * | |
dc53a7ad JB |
1273 | create_array_type_with_stride (struct type *result_type, |
1274 | struct type *element_type, | |
1275 | struct type *range_type, | |
a405673c | 1276 | struct dynamic_prop *byte_stride_prop, |
dc53a7ad | 1277 | unsigned int bit_stride) |
c906108c | 1278 | { |
a405673c | 1279 | if (byte_stride_prop != NULL |
8c2e4e06 | 1280 | && byte_stride_prop->kind () == PROP_CONST) |
a405673c JB |
1281 | { |
1282 | /* The byte stride is actually not dynamic. Pretend we were | |
1283 | called with bit_stride set instead of byte_stride_prop. | |
1284 | This will give us the same result type, while avoiding | |
1285 | the need to handle this as a special case. */ | |
8c2e4e06 | 1286 | bit_stride = byte_stride_prop->const_val () * 8; |
a405673c JB |
1287 | byte_stride_prop = NULL; |
1288 | } | |
1289 | ||
c906108c | 1290 | if (result_type == NULL) |
e9bb382b UW |
1291 | result_type = alloc_type_copy (range_type); |
1292 | ||
67607e24 | 1293 | result_type->set_code (TYPE_CODE_ARRAY); |
c906108c | 1294 | TYPE_TARGET_TYPE (result_type) = element_type; |
5bbd8269 | 1295 | |
5e33d5f4 | 1296 | result_type->set_num_fields (1); |
3cabb6b0 SM |
1297 | result_type->set_fields |
1298 | ((struct field *) TYPE_ZALLOC (result_type, sizeof (struct field))); | |
262abc0d | 1299 | result_type->set_index_type (range_type); |
8dbb1375 | 1300 | if (byte_stride_prop != NULL) |
5c54719c | 1301 | result_type->add_dyn_prop (DYN_PROP_BYTE_STRIDE, *byte_stride_prop); |
8dbb1375 HD |
1302 | else if (bit_stride > 0) |
1303 | TYPE_FIELD_BITSIZE (result_type, 0) = bit_stride; | |
80180f79 | 1304 | |
8dbb1375 | 1305 | if (!update_static_array_size (result_type)) |
80180f79 SA |
1306 | { |
1307 | /* This type is dynamic and its length needs to be computed | |
1308 | on demand. In the meantime, avoid leaving the TYPE_LENGTH | |
1309 | undefined by setting it to zero. Although we are not expected | |
1310 | to trust TYPE_LENGTH in this case, setting the size to zero | |
1311 | allows us to avoid allocating objects of random sizes in case | |
1312 | we accidently do. */ | |
1313 | TYPE_LENGTH (result_type) = 0; | |
1314 | } | |
1315 | ||
a9ff5f12 | 1316 | /* TYPE_TARGET_STUB will take care of zero length arrays. */ |
c906108c | 1317 | if (TYPE_LENGTH (result_type) == 0) |
8f53807e | 1318 | result_type->set_target_is_stub (true); |
c906108c | 1319 | |
c16abbde | 1320 | return result_type; |
c906108c SS |
1321 | } |
1322 | ||
dc53a7ad JB |
1323 | /* Same as create_array_type_with_stride but with no bit_stride |
1324 | (BIT_STRIDE = 0), thus building an unpacked array. */ | |
1325 | ||
1326 | struct type * | |
1327 | create_array_type (struct type *result_type, | |
1328 | struct type *element_type, | |
1329 | struct type *range_type) | |
1330 | { | |
1331 | return create_array_type_with_stride (result_type, element_type, | |
a405673c | 1332 | range_type, NULL, 0); |
dc53a7ad JB |
1333 | } |
1334 | ||
e3506a9f UW |
1335 | struct type * |
1336 | lookup_array_range_type (struct type *element_type, | |
63375b74 | 1337 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f | 1338 | { |
929b5ad4 JB |
1339 | struct type *index_type; |
1340 | struct type *range_type; | |
1341 | ||
1342 | if (TYPE_OBJFILE_OWNED (element_type)) | |
1343 | index_type = objfile_type (TYPE_OWNER (element_type).objfile)->builtin_int; | |
1344 | else | |
1345 | index_type = builtin_type (get_type_arch (element_type))->builtin_int; | |
1346 | range_type = create_static_range_type (NULL, index_type, | |
1347 | low_bound, high_bound); | |
d8734c88 | 1348 | |
e3506a9f UW |
1349 | return create_array_type (NULL, element_type, range_type); |
1350 | } | |
1351 | ||
7ba81444 MS |
1352 | /* Create a string type using either a blank type supplied in |
1353 | RESULT_TYPE, or creating a new type. String types are similar | |
1354 | enough to array of char types that we can use create_array_type to | |
1355 | build the basic type and then bash it into a string type. | |
c906108c SS |
1356 | |
1357 | For fixed length strings, the range type contains 0 as the lower | |
1358 | bound and the length of the string minus one as the upper bound. | |
1359 | ||
7ba81444 MS |
1360 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1361 | sure it is TYPE_CODE_UNDEF before we bash it into a string | |
1362 | type? */ | |
c906108c SS |
1363 | |
1364 | struct type * | |
3b7538c0 UW |
1365 | create_string_type (struct type *result_type, |
1366 | struct type *string_char_type, | |
7ba81444 | 1367 | struct type *range_type) |
c906108c SS |
1368 | { |
1369 | result_type = create_array_type (result_type, | |
f290d38e | 1370 | string_char_type, |
c906108c | 1371 | range_type); |
67607e24 | 1372 | result_type->set_code (TYPE_CODE_STRING); |
c16abbde | 1373 | return result_type; |
c906108c SS |
1374 | } |
1375 | ||
e3506a9f UW |
1376 | struct type * |
1377 | lookup_string_range_type (struct type *string_char_type, | |
63375b74 | 1378 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f UW |
1379 | { |
1380 | struct type *result_type; | |
d8734c88 | 1381 | |
e3506a9f UW |
1382 | result_type = lookup_array_range_type (string_char_type, |
1383 | low_bound, high_bound); | |
67607e24 | 1384 | result_type->set_code (TYPE_CODE_STRING); |
e3506a9f UW |
1385 | return result_type; |
1386 | } | |
1387 | ||
c906108c | 1388 | struct type * |
fba45db2 | 1389 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c | 1390 | { |
c906108c | 1391 | if (result_type == NULL) |
e9bb382b UW |
1392 | result_type = alloc_type_copy (domain_type); |
1393 | ||
67607e24 | 1394 | result_type->set_code (TYPE_CODE_SET); |
5e33d5f4 | 1395 | result_type->set_num_fields (1); |
3cabb6b0 SM |
1396 | result_type->set_fields |
1397 | ((struct field *) TYPE_ZALLOC (result_type, sizeof (struct field))); | |
c906108c | 1398 | |
e46d3488 | 1399 | if (!domain_type->is_stub ()) |
c906108c | 1400 | { |
f9780d5b | 1401 | LONGEST low_bound, high_bound, bit_length; |
d8734c88 | 1402 | |
c906108c SS |
1403 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
1404 | low_bound = high_bound = 0; | |
1405 | bit_length = high_bound - low_bound + 1; | |
1406 | TYPE_LENGTH (result_type) | |
1407 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
f9780d5b | 1408 | if (low_bound >= 0) |
653223d3 | 1409 | result_type->set_is_unsigned (true); |
c906108c | 1410 | } |
5d14b6e5 | 1411 | result_type->field (0).set_type (domain_type); |
c906108c | 1412 | |
c16abbde | 1413 | return result_type; |
c906108c SS |
1414 | } |
1415 | ||
ea37ba09 DJ |
1416 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
1417 | and any array types nested inside it. */ | |
1418 | ||
1419 | void | |
1420 | make_vector_type (struct type *array_type) | |
1421 | { | |
1422 | struct type *inner_array, *elt_type; | |
ea37ba09 DJ |
1423 | |
1424 | /* Find the innermost array type, in case the array is | |
1425 | multi-dimensional. */ | |
1426 | inner_array = array_type; | |
78134374 | 1427 | while (TYPE_TARGET_TYPE (inner_array)->code () == TYPE_CODE_ARRAY) |
ea37ba09 DJ |
1428 | inner_array = TYPE_TARGET_TYPE (inner_array); |
1429 | ||
1430 | elt_type = TYPE_TARGET_TYPE (inner_array); | |
78134374 | 1431 | if (elt_type->code () == TYPE_CODE_INT) |
ea37ba09 | 1432 | { |
314ad88d PA |
1433 | type_instance_flags flags |
1434 | = elt_type->instance_flags () | TYPE_INSTANCE_FLAG_NOTTEXT; | |
ea37ba09 DJ |
1435 | elt_type = make_qualified_type (elt_type, flags, NULL); |
1436 | TYPE_TARGET_TYPE (inner_array) = elt_type; | |
1437 | } | |
1438 | ||
2062087b | 1439 | array_type->set_is_vector (true); |
ea37ba09 DJ |
1440 | } |
1441 | ||
794ac428 | 1442 | struct type * |
ac3aafc7 EZ |
1443 | init_vector_type (struct type *elt_type, int n) |
1444 | { | |
1445 | struct type *array_type; | |
d8734c88 | 1446 | |
e3506a9f | 1447 | array_type = lookup_array_range_type (elt_type, 0, n - 1); |
ea37ba09 | 1448 | make_vector_type (array_type); |
ac3aafc7 EZ |
1449 | return array_type; |
1450 | } | |
1451 | ||
09e2d7c7 DE |
1452 | /* Internal routine called by TYPE_SELF_TYPE to return the type that TYPE |
1453 | belongs to. In c++ this is the class of "this", but TYPE_THIS_TYPE is too | |
1454 | confusing. "self" is a common enough replacement for "this". | |
1455 | TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or | |
1456 | TYPE_CODE_METHOD. */ | |
1457 | ||
1458 | struct type * | |
1459 | internal_type_self_type (struct type *type) | |
1460 | { | |
78134374 | 1461 | switch (type->code ()) |
09e2d7c7 DE |
1462 | { |
1463 | case TYPE_CODE_METHODPTR: | |
1464 | case TYPE_CODE_MEMBERPTR: | |
eaaf76ab DE |
1465 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) |
1466 | return NULL; | |
09e2d7c7 DE |
1467 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE); |
1468 | return TYPE_MAIN_TYPE (type)->type_specific.self_type; | |
1469 | case TYPE_CODE_METHOD: | |
eaaf76ab DE |
1470 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) |
1471 | return NULL; | |
09e2d7c7 DE |
1472 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC); |
1473 | return TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type; | |
1474 | default: | |
1475 | gdb_assert_not_reached ("bad type"); | |
1476 | } | |
1477 | } | |
1478 | ||
1479 | /* Set the type of the class that TYPE belongs to. | |
1480 | In c++ this is the class of "this". | |
1481 | TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or | |
1482 | TYPE_CODE_METHOD. */ | |
1483 | ||
1484 | void | |
1485 | set_type_self_type (struct type *type, struct type *self_type) | |
1486 | { | |
78134374 | 1487 | switch (type->code ()) |
09e2d7c7 DE |
1488 | { |
1489 | case TYPE_CODE_METHODPTR: | |
1490 | case TYPE_CODE_MEMBERPTR: | |
1491 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) | |
1492 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_SELF_TYPE; | |
1493 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE); | |
1494 | TYPE_MAIN_TYPE (type)->type_specific.self_type = self_type; | |
1495 | break; | |
1496 | case TYPE_CODE_METHOD: | |
1497 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) | |
1498 | INIT_FUNC_SPECIFIC (type); | |
1499 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC); | |
1500 | TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type = self_type; | |
1501 | break; | |
1502 | default: | |
1503 | gdb_assert_not_reached ("bad type"); | |
1504 | } | |
1505 | } | |
1506 | ||
1507 | /* Smash TYPE to be a type of pointers to members of SELF_TYPE with type | |
0d5de010 DJ |
1508 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a |
1509 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
1510 | TYPE doesn't include the offset (that's the value of the MEMBER | |
1511 | itself), but does include the structure type into which it points | |
1512 | (for some reason). | |
c906108c | 1513 | |
7ba81444 MS |
1514 | When "smashing" the type, we preserve the objfile that the old type |
1515 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1516 | allocated. */ |
1517 | ||
1518 | void | |
09e2d7c7 | 1519 | smash_to_memberptr_type (struct type *type, struct type *self_type, |
0d5de010 | 1520 | struct type *to_type) |
c906108c | 1521 | { |
2fdde8f8 | 1522 | smash_type (type); |
67607e24 | 1523 | type->set_code (TYPE_CODE_MEMBERPTR); |
c906108c | 1524 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1525 | set_type_self_type (type, self_type); |
0d5de010 DJ |
1526 | /* Assume that a data member pointer is the same size as a normal |
1527 | pointer. */ | |
50810684 UW |
1528 | TYPE_LENGTH (type) |
1529 | = gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT; | |
c906108c SS |
1530 | } |
1531 | ||
0b92b5bb TT |
1532 | /* Smash TYPE to be a type of pointer to methods type TO_TYPE. |
1533 | ||
1534 | When "smashing" the type, we preserve the objfile that the old type | |
1535 | pointed to, since we aren't changing where the type is actually | |
1536 | allocated. */ | |
1537 | ||
1538 | void | |
1539 | smash_to_methodptr_type (struct type *type, struct type *to_type) | |
1540 | { | |
1541 | smash_type (type); | |
67607e24 | 1542 | type->set_code (TYPE_CODE_METHODPTR); |
0b92b5bb | 1543 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1544 | set_type_self_type (type, TYPE_SELF_TYPE (to_type)); |
0b92b5bb | 1545 | TYPE_LENGTH (type) = cplus_method_ptr_size (to_type); |
0b92b5bb TT |
1546 | } |
1547 | ||
09e2d7c7 | 1548 | /* Smash TYPE to be a type of method of SELF_TYPE with type TO_TYPE. |
c906108c SS |
1549 | METHOD just means `function that gets an extra "this" argument'. |
1550 | ||
7ba81444 MS |
1551 | When "smashing" the type, we preserve the objfile that the old type |
1552 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1553 | allocated. */ |
1554 | ||
1555 | void | |
09e2d7c7 | 1556 | smash_to_method_type (struct type *type, struct type *self_type, |
ad2f7632 DJ |
1557 | struct type *to_type, struct field *args, |
1558 | int nargs, int varargs) | |
c906108c | 1559 | { |
2fdde8f8 | 1560 | smash_type (type); |
67607e24 | 1561 | type->set_code (TYPE_CODE_METHOD); |
c906108c | 1562 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1563 | set_type_self_type (type, self_type); |
3cabb6b0 | 1564 | type->set_fields (args); |
5e33d5f4 | 1565 | type->set_num_fields (nargs); |
ad2f7632 | 1566 | if (varargs) |
1d6286ed | 1567 | type->set_has_varargs (true); |
c906108c | 1568 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
c906108c SS |
1569 | } |
1570 | ||
a737d952 | 1571 | /* A wrapper of TYPE_NAME which calls error if the type is anonymous. |
d8228535 JK |
1572 | Since GCC PR debug/47510 DWARF provides associated information to detect the |
1573 | anonymous class linkage name from its typedef. | |
1574 | ||
1575 | Parameter TYPE should not yet have CHECK_TYPEDEF applied, this function will | |
1576 | apply it itself. */ | |
1577 | ||
1578 | const char * | |
a737d952 | 1579 | type_name_or_error (struct type *type) |
d8228535 JK |
1580 | { |
1581 | struct type *saved_type = type; | |
1582 | const char *name; | |
1583 | struct objfile *objfile; | |
1584 | ||
f168693b | 1585 | type = check_typedef (type); |
d8228535 | 1586 | |
7d93a1e0 | 1587 | name = type->name (); |
d8228535 JK |
1588 | if (name != NULL) |
1589 | return name; | |
1590 | ||
7d93a1e0 | 1591 | name = saved_type->name (); |
d8228535 JK |
1592 | objfile = TYPE_OBJFILE (saved_type); |
1593 | error (_("Invalid anonymous type %s [in module %s], GCC PR debug/47510 bug?"), | |
4262abfb JK |
1594 | name ? name : "<anonymous>", |
1595 | objfile ? objfile_name (objfile) : "<arch>"); | |
d8228535 JK |
1596 | } |
1597 | ||
7ba81444 MS |
1598 | /* Lookup a typedef or primitive type named NAME, visible in lexical |
1599 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
1600 | suitably defined. */ | |
c906108c SS |
1601 | |
1602 | struct type * | |
e6c014f2 | 1603 | lookup_typename (const struct language_defn *language, |
b858499d | 1604 | const char *name, |
34eaf542 | 1605 | const struct block *block, int noerr) |
c906108c | 1606 | { |
52f0bd74 | 1607 | struct symbol *sym; |
c906108c | 1608 | |
1994afbf | 1609 | sym = lookup_symbol_in_language (name, block, VAR_DOMAIN, |
d12307c1 | 1610 | language->la_language, NULL).symbol; |
c51fe631 DE |
1611 | if (sym != NULL && SYMBOL_CLASS (sym) == LOC_TYPEDEF) |
1612 | return SYMBOL_TYPE (sym); | |
1613 | ||
c51fe631 DE |
1614 | if (noerr) |
1615 | return NULL; | |
1616 | error (_("No type named %s."), name); | |
c906108c SS |
1617 | } |
1618 | ||
1619 | struct type * | |
e6c014f2 | 1620 | lookup_unsigned_typename (const struct language_defn *language, |
b858499d | 1621 | const char *name) |
c906108c | 1622 | { |
224c3ddb | 1623 | char *uns = (char *) alloca (strlen (name) + 10); |
c906108c SS |
1624 | |
1625 | strcpy (uns, "unsigned "); | |
1626 | strcpy (uns + 9, name); | |
b858499d | 1627 | return lookup_typename (language, uns, NULL, 0); |
c906108c SS |
1628 | } |
1629 | ||
1630 | struct type * | |
b858499d | 1631 | lookup_signed_typename (const struct language_defn *language, const char *name) |
c906108c SS |
1632 | { |
1633 | struct type *t; | |
224c3ddb | 1634 | char *uns = (char *) alloca (strlen (name) + 8); |
c906108c SS |
1635 | |
1636 | strcpy (uns, "signed "); | |
1637 | strcpy (uns + 7, name); | |
b858499d | 1638 | t = lookup_typename (language, uns, NULL, 1); |
7ba81444 | 1639 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
c906108c SS |
1640 | if (t != NULL) |
1641 | return t; | |
b858499d | 1642 | return lookup_typename (language, name, NULL, 0); |
c906108c SS |
1643 | } |
1644 | ||
1645 | /* Lookup a structure type named "struct NAME", | |
1646 | visible in lexical block BLOCK. */ | |
1647 | ||
1648 | struct type * | |
270140bd | 1649 | lookup_struct (const char *name, const struct block *block) |
c906108c | 1650 | { |
52f0bd74 | 1651 | struct symbol *sym; |
c906108c | 1652 | |
d12307c1 | 1653 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1654 | |
1655 | if (sym == NULL) | |
1656 | { | |
8a3fe4f8 | 1657 | error (_("No struct type named %s."), name); |
c906108c | 1658 | } |
78134374 | 1659 | if (SYMBOL_TYPE (sym)->code () != TYPE_CODE_STRUCT) |
c906108c | 1660 | { |
7ba81444 MS |
1661 | error (_("This context has class, union or enum %s, not a struct."), |
1662 | name); | |
c906108c SS |
1663 | } |
1664 | return (SYMBOL_TYPE (sym)); | |
1665 | } | |
1666 | ||
1667 | /* Lookup a union type named "union NAME", | |
1668 | visible in lexical block BLOCK. */ | |
1669 | ||
1670 | struct type * | |
270140bd | 1671 | lookup_union (const char *name, const struct block *block) |
c906108c | 1672 | { |
52f0bd74 | 1673 | struct symbol *sym; |
c5aa993b | 1674 | struct type *t; |
c906108c | 1675 | |
d12307c1 | 1676 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1677 | |
1678 | if (sym == NULL) | |
8a3fe4f8 | 1679 | error (_("No union type named %s."), name); |
c906108c | 1680 | |
c5aa993b | 1681 | t = SYMBOL_TYPE (sym); |
c906108c | 1682 | |
78134374 | 1683 | if (t->code () == TYPE_CODE_UNION) |
c16abbde | 1684 | return t; |
c906108c | 1685 | |
7ba81444 MS |
1686 | /* If we get here, it's not a union. */ |
1687 | error (_("This context has class, struct or enum %s, not a union."), | |
1688 | name); | |
c906108c SS |
1689 | } |
1690 | ||
c906108c SS |
1691 | /* Lookup an enum type named "enum NAME", |
1692 | visible in lexical block BLOCK. */ | |
1693 | ||
1694 | struct type * | |
270140bd | 1695 | lookup_enum (const char *name, const struct block *block) |
c906108c | 1696 | { |
52f0bd74 | 1697 | struct symbol *sym; |
c906108c | 1698 | |
d12307c1 | 1699 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1700 | if (sym == NULL) |
1701 | { | |
8a3fe4f8 | 1702 | error (_("No enum type named %s."), name); |
c906108c | 1703 | } |
78134374 | 1704 | if (SYMBOL_TYPE (sym)->code () != TYPE_CODE_ENUM) |
c906108c | 1705 | { |
7ba81444 MS |
1706 | error (_("This context has class, struct or union %s, not an enum."), |
1707 | name); | |
c906108c SS |
1708 | } |
1709 | return (SYMBOL_TYPE (sym)); | |
1710 | } | |
1711 | ||
1712 | /* Lookup a template type named "template NAME<TYPE>", | |
1713 | visible in lexical block BLOCK. */ | |
1714 | ||
1715 | struct type * | |
61f4b350 | 1716 | lookup_template_type (const char *name, struct type *type, |
270140bd | 1717 | const struct block *block) |
c906108c SS |
1718 | { |
1719 | struct symbol *sym; | |
7ba81444 | 1720 | char *nam = (char *) |
7d93a1e0 | 1721 | alloca (strlen (name) + strlen (type->name ()) + 4); |
d8734c88 | 1722 | |
c906108c SS |
1723 | strcpy (nam, name); |
1724 | strcat (nam, "<"); | |
7d93a1e0 | 1725 | strcat (nam, type->name ()); |
0963b4bd | 1726 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1727 | |
d12307c1 | 1728 | sym = lookup_symbol (nam, block, VAR_DOMAIN, 0).symbol; |
c906108c SS |
1729 | |
1730 | if (sym == NULL) | |
1731 | { | |
8a3fe4f8 | 1732 | error (_("No template type named %s."), name); |
c906108c | 1733 | } |
78134374 | 1734 | if (SYMBOL_TYPE (sym)->code () != TYPE_CODE_STRUCT) |
c906108c | 1735 | { |
7ba81444 MS |
1736 | error (_("This context has class, union or enum %s, not a struct."), |
1737 | name); | |
c906108c SS |
1738 | } |
1739 | return (SYMBOL_TYPE (sym)); | |
1740 | } | |
1741 | ||
ef0bd204 | 1742 | /* See gdbtypes.h. */ |
c906108c | 1743 | |
ef0bd204 JB |
1744 | struct_elt |
1745 | lookup_struct_elt (struct type *type, const char *name, int noerr) | |
c906108c SS |
1746 | { |
1747 | int i; | |
1748 | ||
1749 | for (;;) | |
1750 | { | |
f168693b | 1751 | type = check_typedef (type); |
78134374 SM |
1752 | if (type->code () != TYPE_CODE_PTR |
1753 | && type->code () != TYPE_CODE_REF) | |
c906108c SS |
1754 | break; |
1755 | type = TYPE_TARGET_TYPE (type); | |
1756 | } | |
1757 | ||
78134374 SM |
1758 | if (type->code () != TYPE_CODE_STRUCT |
1759 | && type->code () != TYPE_CODE_UNION) | |
c906108c | 1760 | { |
2f408ecb PA |
1761 | std::string type_name = type_to_string (type); |
1762 | error (_("Type %s is not a structure or union type."), | |
1763 | type_name.c_str ()); | |
c906108c SS |
1764 | } |
1765 | ||
1f704f76 | 1766 | for (i = type->num_fields () - 1; i >= TYPE_N_BASECLASSES (type); i--) |
c906108c | 1767 | { |
0d5cff50 | 1768 | const char *t_field_name = TYPE_FIELD_NAME (type, i); |
c906108c | 1769 | |
db577aea | 1770 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c | 1771 | { |
ceacbf6e | 1772 | return {&type->field (i), TYPE_FIELD_BITPOS (type, i)}; |
c906108c | 1773 | } |
f5a010c0 PM |
1774 | else if (!t_field_name || *t_field_name == '\0') |
1775 | { | |
ef0bd204 | 1776 | struct_elt elt |
940da03e | 1777 | = lookup_struct_elt (type->field (i).type (), name, 1); |
ef0bd204 JB |
1778 | if (elt.field != NULL) |
1779 | { | |
1780 | elt.offset += TYPE_FIELD_BITPOS (type, i); | |
1781 | return elt; | |
1782 | } | |
f5a010c0 | 1783 | } |
c906108c SS |
1784 | } |
1785 | ||
1786 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1787 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1788 | { | |
ef0bd204 JB |
1789 | struct_elt elt = lookup_struct_elt (TYPE_BASECLASS (type, i), name, 1); |
1790 | if (elt.field != NULL) | |
1791 | return elt; | |
c906108c SS |
1792 | } |
1793 | ||
1794 | if (noerr) | |
ef0bd204 | 1795 | return {nullptr, 0}; |
c5aa993b | 1796 | |
2f408ecb PA |
1797 | std::string type_name = type_to_string (type); |
1798 | error (_("Type %s has no component named %s."), type_name.c_str (), name); | |
c906108c SS |
1799 | } |
1800 | ||
ef0bd204 JB |
1801 | /* See gdbtypes.h. */ |
1802 | ||
1803 | struct type * | |
1804 | lookup_struct_elt_type (struct type *type, const char *name, int noerr) | |
1805 | { | |
1806 | struct_elt elt = lookup_struct_elt (type, name, noerr); | |
1807 | if (elt.field != NULL) | |
b6cdac4b | 1808 | return elt.field->type (); |
ef0bd204 JB |
1809 | else |
1810 | return NULL; | |
1811 | } | |
1812 | ||
ed3ef339 DE |
1813 | /* Store in *MAX the largest number representable by unsigned integer type |
1814 | TYPE. */ | |
1815 | ||
1816 | void | |
1817 | get_unsigned_type_max (struct type *type, ULONGEST *max) | |
1818 | { | |
1819 | unsigned int n; | |
1820 | ||
f168693b | 1821 | type = check_typedef (type); |
c6d940a9 | 1822 | gdb_assert (type->code () == TYPE_CODE_INT && type->is_unsigned ()); |
ed3ef339 DE |
1823 | gdb_assert (TYPE_LENGTH (type) <= sizeof (ULONGEST)); |
1824 | ||
1825 | /* Written this way to avoid overflow. */ | |
1826 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1827 | *max = ((((ULONGEST) 1 << (n - 1)) - 1) << 1) | 1; | |
1828 | } | |
1829 | ||
1830 | /* Store in *MIN, *MAX the smallest and largest numbers representable by | |
1831 | signed integer type TYPE. */ | |
1832 | ||
1833 | void | |
1834 | get_signed_type_minmax (struct type *type, LONGEST *min, LONGEST *max) | |
1835 | { | |
1836 | unsigned int n; | |
1837 | ||
f168693b | 1838 | type = check_typedef (type); |
c6d940a9 | 1839 | gdb_assert (type->code () == TYPE_CODE_INT && !type->is_unsigned ()); |
ed3ef339 DE |
1840 | gdb_assert (TYPE_LENGTH (type) <= sizeof (LONGEST)); |
1841 | ||
1842 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1843 | *min = -((ULONGEST) 1 << (n - 1)); | |
1844 | *max = ((ULONGEST) 1 << (n - 1)) - 1; | |
1845 | } | |
1846 | ||
ae6ae975 DE |
1847 | /* Internal routine called by TYPE_VPTR_FIELDNO to return the value of |
1848 | cplus_stuff.vptr_fieldno. | |
1849 | ||
1850 | cplus_stuff is initialized to cplus_struct_default which does not | |
1851 | set vptr_fieldno to -1 for portability reasons (IWBN to use C99 | |
1852 | designated initializers). We cope with that here. */ | |
1853 | ||
1854 | int | |
1855 | internal_type_vptr_fieldno (struct type *type) | |
1856 | { | |
f168693b | 1857 | type = check_typedef (type); |
78134374 SM |
1858 | gdb_assert (type->code () == TYPE_CODE_STRUCT |
1859 | || type->code () == TYPE_CODE_UNION); | |
ae6ae975 DE |
1860 | if (!HAVE_CPLUS_STRUCT (type)) |
1861 | return -1; | |
1862 | return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno; | |
1863 | } | |
1864 | ||
1865 | /* Set the value of cplus_stuff.vptr_fieldno. */ | |
1866 | ||
1867 | void | |
1868 | set_type_vptr_fieldno (struct type *type, int fieldno) | |
1869 | { | |
f168693b | 1870 | type = check_typedef (type); |
78134374 SM |
1871 | gdb_assert (type->code () == TYPE_CODE_STRUCT |
1872 | || type->code () == TYPE_CODE_UNION); | |
ae6ae975 DE |
1873 | if (!HAVE_CPLUS_STRUCT (type)) |
1874 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
1875 | TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno = fieldno; | |
1876 | } | |
1877 | ||
1878 | /* Internal routine called by TYPE_VPTR_BASETYPE to return the value of | |
1879 | cplus_stuff.vptr_basetype. */ | |
1880 | ||
1881 | struct type * | |
1882 | internal_type_vptr_basetype (struct type *type) | |
1883 | { | |
f168693b | 1884 | type = check_typedef (type); |
78134374 SM |
1885 | gdb_assert (type->code () == TYPE_CODE_STRUCT |
1886 | || type->code () == TYPE_CODE_UNION); | |
ae6ae975 DE |
1887 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF); |
1888 | return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype; | |
1889 | } | |
1890 | ||
1891 | /* Set the value of cplus_stuff.vptr_basetype. */ | |
1892 | ||
1893 | void | |
1894 | set_type_vptr_basetype (struct type *type, struct type *basetype) | |
1895 | { | |
f168693b | 1896 | type = check_typedef (type); |
78134374 SM |
1897 | gdb_assert (type->code () == TYPE_CODE_STRUCT |
1898 | || type->code () == TYPE_CODE_UNION); | |
ae6ae975 DE |
1899 | if (!HAVE_CPLUS_STRUCT (type)) |
1900 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
1901 | TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype = basetype; | |
1902 | } | |
1903 | ||
81fe8080 DE |
1904 | /* Lookup the vptr basetype/fieldno values for TYPE. |
1905 | If found store vptr_basetype in *BASETYPEP if non-NULL, and return | |
1906 | vptr_fieldno. Also, if found and basetype is from the same objfile, | |
1907 | cache the results. | |
1908 | If not found, return -1 and ignore BASETYPEP. | |
1909 | Callers should be aware that in some cases (for example, | |
c906108c | 1910 | the type or one of its baseclasses is a stub type and we are |
d48cc9dd DJ |
1911 | debugging a .o file, or the compiler uses DWARF-2 and is not GCC), |
1912 | this function will not be able to find the | |
7ba81444 | 1913 | virtual function table pointer, and vptr_fieldno will remain -1 and |
81fe8080 | 1914 | vptr_basetype will remain NULL or incomplete. */ |
c906108c | 1915 | |
81fe8080 DE |
1916 | int |
1917 | get_vptr_fieldno (struct type *type, struct type **basetypep) | |
c906108c | 1918 | { |
f168693b | 1919 | type = check_typedef (type); |
c906108c SS |
1920 | |
1921 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1922 | { | |
1923 | int i; | |
1924 | ||
7ba81444 MS |
1925 | /* We must start at zero in case the first (and only) baseclass |
1926 | is virtual (and hence we cannot share the table pointer). */ | |
c906108c SS |
1927 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1928 | { | |
81fe8080 DE |
1929 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
1930 | int fieldno; | |
1931 | struct type *basetype; | |
1932 | ||
1933 | fieldno = get_vptr_fieldno (baseclass, &basetype); | |
1934 | if (fieldno >= 0) | |
c906108c | 1935 | { |
81fe8080 | 1936 | /* If the type comes from a different objfile we can't cache |
0963b4bd | 1937 | it, it may have a different lifetime. PR 2384 */ |
5ef73790 | 1938 | if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype)) |
81fe8080 | 1939 | { |
ae6ae975 DE |
1940 | set_type_vptr_fieldno (type, fieldno); |
1941 | set_type_vptr_basetype (type, basetype); | |
81fe8080 DE |
1942 | } |
1943 | if (basetypep) | |
1944 | *basetypep = basetype; | |
1945 | return fieldno; | |
c906108c SS |
1946 | } |
1947 | } | |
81fe8080 DE |
1948 | |
1949 | /* Not found. */ | |
1950 | return -1; | |
1951 | } | |
1952 | else | |
1953 | { | |
1954 | if (basetypep) | |
1955 | *basetypep = TYPE_VPTR_BASETYPE (type); | |
1956 | return TYPE_VPTR_FIELDNO (type); | |
c906108c SS |
1957 | } |
1958 | } | |
1959 | ||
44e1a9eb DJ |
1960 | static void |
1961 | stub_noname_complaint (void) | |
1962 | { | |
b98664d3 | 1963 | complaint (_("stub type has NULL name")); |
44e1a9eb DJ |
1964 | } |
1965 | ||
a405673c JB |
1966 | /* Return nonzero if TYPE has a DYN_PROP_BYTE_STRIDE dynamic property |
1967 | attached to it, and that property has a non-constant value. */ | |
1968 | ||
1969 | static int | |
1970 | array_type_has_dynamic_stride (struct type *type) | |
1971 | { | |
24e99c6c | 1972 | struct dynamic_prop *prop = type->dyn_prop (DYN_PROP_BYTE_STRIDE); |
a405673c | 1973 | |
8c2e4e06 | 1974 | return (prop != NULL && prop->kind () != PROP_CONST); |
a405673c JB |
1975 | } |
1976 | ||
d98b7a16 | 1977 | /* Worker for is_dynamic_type. */ |
80180f79 | 1978 | |
d98b7a16 | 1979 | static int |
ee715b5a | 1980 | is_dynamic_type_internal (struct type *type, int top_level) |
80180f79 SA |
1981 | { |
1982 | type = check_typedef (type); | |
1983 | ||
e771e4be | 1984 | /* We only want to recognize references at the outermost level. */ |
78134374 | 1985 | if (top_level && type->code () == TYPE_CODE_REF) |
e771e4be PMR |
1986 | type = check_typedef (TYPE_TARGET_TYPE (type)); |
1987 | ||
3cdcd0ce JB |
1988 | /* Types that have a dynamic TYPE_DATA_LOCATION are considered |
1989 | dynamic, even if the type itself is statically defined. | |
1990 | From a user's point of view, this may appear counter-intuitive; | |
1991 | but it makes sense in this context, because the point is to determine | |
1992 | whether any part of the type needs to be resolved before it can | |
1993 | be exploited. */ | |
1994 | if (TYPE_DATA_LOCATION (type) != NULL | |
1995 | && (TYPE_DATA_LOCATION_KIND (type) == PROP_LOCEXPR | |
1996 | || TYPE_DATA_LOCATION_KIND (type) == PROP_LOCLIST)) | |
1997 | return 1; | |
1998 | ||
3f2f83dd KB |
1999 | if (TYPE_ASSOCIATED_PROP (type)) |
2000 | return 1; | |
2001 | ||
2002 | if (TYPE_ALLOCATED_PROP (type)) | |
2003 | return 1; | |
2004 | ||
24e99c6c | 2005 | struct dynamic_prop *prop = type->dyn_prop (DYN_PROP_VARIANT_PARTS); |
8c2e4e06 | 2006 | if (prop != nullptr && prop->kind () != PROP_TYPE) |
ef83a141 TT |
2007 | return 1; |
2008 | ||
f8e89861 TT |
2009 | if (TYPE_HAS_DYNAMIC_LENGTH (type)) |
2010 | return 1; | |
2011 | ||
78134374 | 2012 | switch (type->code ()) |
80180f79 | 2013 | { |
6f8a3220 | 2014 | case TYPE_CODE_RANGE: |
ddb87a81 JB |
2015 | { |
2016 | /* A range type is obviously dynamic if it has at least one | |
2017 | dynamic bound. But also consider the range type to be | |
2018 | dynamic when its subtype is dynamic, even if the bounds | |
2019 | of the range type are static. It allows us to assume that | |
2020 | the subtype of a static range type is also static. */ | |
599088e3 | 2021 | return (!has_static_range (type->bounds ()) |
ee715b5a | 2022 | || is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0)); |
ddb87a81 | 2023 | } |
6f8a3220 | 2024 | |
216a7e6b AB |
2025 | case TYPE_CODE_STRING: |
2026 | /* Strings are very much like an array of characters, and can be | |
2027 | treated as one here. */ | |
80180f79 SA |
2028 | case TYPE_CODE_ARRAY: |
2029 | { | |
1f704f76 | 2030 | gdb_assert (type->num_fields () == 1); |
6f8a3220 | 2031 | |
a405673c | 2032 | /* The array is dynamic if either the bounds are dynamic... */ |
3d967001 | 2033 | if (is_dynamic_type_internal (type->index_type (), 0)) |
80180f79 | 2034 | return 1; |
a405673c JB |
2035 | /* ... or the elements it contains have a dynamic contents... */ |
2036 | if (is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0)) | |
2037 | return 1; | |
2038 | /* ... or if it has a dynamic stride... */ | |
2039 | if (array_type_has_dynamic_stride (type)) | |
2040 | return 1; | |
2041 | return 0; | |
80180f79 | 2042 | } |
012370f6 TT |
2043 | |
2044 | case TYPE_CODE_STRUCT: | |
2045 | case TYPE_CODE_UNION: | |
2046 | { | |
2047 | int i; | |
2048 | ||
7d79de9a TT |
2049 | bool is_cplus = HAVE_CPLUS_STRUCT (type); |
2050 | ||
1f704f76 | 2051 | for (i = 0; i < type->num_fields (); ++i) |
7d79de9a TT |
2052 | { |
2053 | /* Static fields can be ignored here. */ | |
ceacbf6e | 2054 | if (field_is_static (&type->field (i))) |
7d79de9a TT |
2055 | continue; |
2056 | /* If the field has dynamic type, then so does TYPE. */ | |
940da03e | 2057 | if (is_dynamic_type_internal (type->field (i).type (), 0)) |
7d79de9a TT |
2058 | return 1; |
2059 | /* If the field is at a fixed offset, then it is not | |
2060 | dynamic. */ | |
2061 | if (TYPE_FIELD_LOC_KIND (type, i) != FIELD_LOC_KIND_DWARF_BLOCK) | |
2062 | continue; | |
2063 | /* Do not consider C++ virtual base types to be dynamic | |
2064 | due to the field's offset being dynamic; these are | |
2065 | handled via other means. */ | |
2066 | if (is_cplus && BASETYPE_VIA_VIRTUAL (type, i)) | |
2067 | continue; | |
012370f6 | 2068 | return 1; |
7d79de9a | 2069 | } |
012370f6 TT |
2070 | } |
2071 | break; | |
80180f79 | 2072 | } |
92e2a17f TT |
2073 | |
2074 | return 0; | |
80180f79 SA |
2075 | } |
2076 | ||
d98b7a16 TT |
2077 | /* See gdbtypes.h. */ |
2078 | ||
2079 | int | |
2080 | is_dynamic_type (struct type *type) | |
2081 | { | |
ee715b5a | 2082 | return is_dynamic_type_internal (type, 1); |
d98b7a16 TT |
2083 | } |
2084 | ||
df25ebbd | 2085 | static struct type *resolve_dynamic_type_internal |
ee715b5a | 2086 | (struct type *type, struct property_addr_info *addr_stack, int top_level); |
d98b7a16 | 2087 | |
df25ebbd JB |
2088 | /* Given a dynamic range type (dyn_range_type) and a stack of |
2089 | struct property_addr_info elements, return a static version | |
2090 | of that type. */ | |
d190df30 | 2091 | |
80180f79 | 2092 | static struct type * |
df25ebbd JB |
2093 | resolve_dynamic_range (struct type *dyn_range_type, |
2094 | struct property_addr_info *addr_stack) | |
80180f79 SA |
2095 | { |
2096 | CORE_ADDR value; | |
ddb87a81 | 2097 | struct type *static_range_type, *static_target_type; |
5bbd8269 | 2098 | struct dynamic_prop low_bound, high_bound, stride; |
80180f79 | 2099 | |
78134374 | 2100 | gdb_assert (dyn_range_type->code () == TYPE_CODE_RANGE); |
80180f79 | 2101 | |
599088e3 | 2102 | const struct dynamic_prop *prop = &dyn_range_type->bounds ()->low; |
63e43d3a | 2103 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
8c2e4e06 | 2104 | low_bound.set_const_val (value); |
80180f79 | 2105 | else |
8c2e4e06 | 2106 | low_bound.set_undefined (); |
80180f79 | 2107 | |
599088e3 | 2108 | prop = &dyn_range_type->bounds ()->high; |
63e43d3a | 2109 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
80180f79 | 2110 | { |
8c2e4e06 | 2111 | high_bound.set_const_val (value); |
c451ebe5 | 2112 | |
599088e3 | 2113 | if (dyn_range_type->bounds ()->flag_upper_bound_is_count) |
8c2e4e06 SM |
2114 | high_bound.set_const_val |
2115 | (low_bound.const_val () + high_bound.const_val () - 1); | |
80180f79 SA |
2116 | } |
2117 | else | |
8c2e4e06 | 2118 | high_bound.set_undefined (); |
80180f79 | 2119 | |
599088e3 SM |
2120 | bool byte_stride_p = dyn_range_type->bounds ()->flag_is_byte_stride; |
2121 | prop = &dyn_range_type->bounds ()->stride; | |
5bbd8269 AB |
2122 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
2123 | { | |
8c2e4e06 | 2124 | stride.set_const_val (value); |
5bbd8269 AB |
2125 | |
2126 | /* If we have a bit stride that is not an exact number of bytes then | |
2127 | I really don't think this is going to work with current GDB, the | |
2128 | array indexing code in GDB seems to be pretty heavily tied to byte | |
2129 | offsets right now. Assuming 8 bits in a byte. */ | |
2130 | struct gdbarch *gdbarch = get_type_arch (dyn_range_type); | |
2131 | int unit_size = gdbarch_addressable_memory_unit_size (gdbarch); | |
2132 | if (!byte_stride_p && (value % (unit_size * 8)) != 0) | |
2133 | error (_("bit strides that are not a multiple of the byte size " | |
2134 | "are currently not supported")); | |
2135 | } | |
2136 | else | |
2137 | { | |
8c2e4e06 | 2138 | stride.set_undefined (); |
5bbd8269 AB |
2139 | byte_stride_p = true; |
2140 | } | |
2141 | ||
ddb87a81 JB |
2142 | static_target_type |
2143 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (dyn_range_type), | |
ee715b5a | 2144 | addr_stack, 0); |
599088e3 | 2145 | LONGEST bias = dyn_range_type->bounds ()->bias; |
5bbd8269 AB |
2146 | static_range_type = create_range_type_with_stride |
2147 | (copy_type (dyn_range_type), static_target_type, | |
2148 | &low_bound, &high_bound, bias, &stride, byte_stride_p); | |
599088e3 | 2149 | static_range_type->bounds ()->flag_bound_evaluated = 1; |
6f8a3220 JB |
2150 | return static_range_type; |
2151 | } | |
2152 | ||
216a7e6b AB |
2153 | /* Resolves dynamic bound values of an array or string type TYPE to static |
2154 | ones. ADDR_STACK is a stack of struct property_addr_info to be used if | |
2155 | needed during the dynamic resolution. */ | |
6f8a3220 JB |
2156 | |
2157 | static struct type * | |
216a7e6b AB |
2158 | resolve_dynamic_array_or_string (struct type *type, |
2159 | struct property_addr_info *addr_stack) | |
6f8a3220 JB |
2160 | { |
2161 | CORE_ADDR value; | |
2162 | struct type *elt_type; | |
2163 | struct type *range_type; | |
2164 | struct type *ary_dim; | |
3f2f83dd | 2165 | struct dynamic_prop *prop; |
a405673c | 2166 | unsigned int bit_stride = 0; |
6f8a3220 | 2167 | |
216a7e6b AB |
2168 | /* For dynamic type resolution strings can be treated like arrays of |
2169 | characters. */ | |
78134374 SM |
2170 | gdb_assert (type->code () == TYPE_CODE_ARRAY |
2171 | || type->code () == TYPE_CODE_STRING); | |
6f8a3220 | 2172 | |
3f2f83dd KB |
2173 | type = copy_type (type); |
2174 | ||
6f8a3220 | 2175 | elt_type = type; |
3d967001 | 2176 | range_type = check_typedef (elt_type->index_type ()); |
df25ebbd | 2177 | range_type = resolve_dynamic_range (range_type, addr_stack); |
6f8a3220 | 2178 | |
3f2f83dd KB |
2179 | /* Resolve allocated/associated here before creating a new array type, which |
2180 | will update the length of the array accordingly. */ | |
2181 | prop = TYPE_ALLOCATED_PROP (type); | |
2182 | if (prop != NULL && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
8c2e4e06 SM |
2183 | prop->set_const_val (value); |
2184 | ||
3f2f83dd KB |
2185 | prop = TYPE_ASSOCIATED_PROP (type); |
2186 | if (prop != NULL && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
8c2e4e06 | 2187 | prop->set_const_val (value); |
3f2f83dd | 2188 | |
80180f79 SA |
2189 | ary_dim = check_typedef (TYPE_TARGET_TYPE (elt_type)); |
2190 | ||
78134374 | 2191 | if (ary_dim != NULL && ary_dim->code () == TYPE_CODE_ARRAY) |
216a7e6b | 2192 | elt_type = resolve_dynamic_array_or_string (ary_dim, addr_stack); |
80180f79 SA |
2193 | else |
2194 | elt_type = TYPE_TARGET_TYPE (type); | |
2195 | ||
24e99c6c | 2196 | prop = type->dyn_prop (DYN_PROP_BYTE_STRIDE); |
a405673c JB |
2197 | if (prop != NULL) |
2198 | { | |
603490bf | 2199 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
a405673c | 2200 | { |
7aa91313 | 2201 | type->remove_dyn_prop (DYN_PROP_BYTE_STRIDE); |
a405673c JB |
2202 | bit_stride = (unsigned int) (value * 8); |
2203 | } | |
2204 | else | |
2205 | { | |
2206 | /* Could be a bug in our code, but it could also happen | |
2207 | if the DWARF info is not correct. Issue a warning, | |
2208 | and assume no byte/bit stride (leave bit_stride = 0). */ | |
2209 | warning (_("cannot determine array stride for type %s"), | |
7d93a1e0 | 2210 | type->name () ? type->name () : "<no name>"); |
a405673c JB |
2211 | } |
2212 | } | |
2213 | else | |
2214 | bit_stride = TYPE_FIELD_BITSIZE (type, 0); | |
2215 | ||
2216 | return create_array_type_with_stride (type, elt_type, range_type, NULL, | |
2217 | bit_stride); | |
80180f79 SA |
2218 | } |
2219 | ||
012370f6 | 2220 | /* Resolve dynamic bounds of members of the union TYPE to static |
df25ebbd JB |
2221 | bounds. ADDR_STACK is a stack of struct property_addr_info |
2222 | to be used if needed during the dynamic resolution. */ | |
012370f6 TT |
2223 | |
2224 | static struct type * | |
df25ebbd JB |
2225 | resolve_dynamic_union (struct type *type, |
2226 | struct property_addr_info *addr_stack) | |
012370f6 TT |
2227 | { |
2228 | struct type *resolved_type; | |
2229 | int i; | |
2230 | unsigned int max_len = 0; | |
2231 | ||
78134374 | 2232 | gdb_assert (type->code () == TYPE_CODE_UNION); |
012370f6 TT |
2233 | |
2234 | resolved_type = copy_type (type); | |
3cabb6b0 SM |
2235 | resolved_type->set_fields |
2236 | ((struct field *) | |
2237 | TYPE_ALLOC (resolved_type, | |
2238 | resolved_type->num_fields () * sizeof (struct field))); | |
80fc5e77 SM |
2239 | memcpy (resolved_type->fields (), |
2240 | type->fields (), | |
1f704f76 SM |
2241 | resolved_type->num_fields () * sizeof (struct field)); |
2242 | for (i = 0; i < resolved_type->num_fields (); ++i) | |
012370f6 TT |
2243 | { |
2244 | struct type *t; | |
2245 | ||
ceacbf6e | 2246 | if (field_is_static (&type->field (i))) |
012370f6 TT |
2247 | continue; |
2248 | ||
940da03e | 2249 | t = resolve_dynamic_type_internal (resolved_type->field (i).type (), |
ee715b5a | 2250 | addr_stack, 0); |
5d14b6e5 | 2251 | resolved_type->field (i).set_type (t); |
2f33032a KS |
2252 | |
2253 | struct type *real_type = check_typedef (t); | |
2254 | if (TYPE_LENGTH (real_type) > max_len) | |
2255 | max_len = TYPE_LENGTH (real_type); | |
012370f6 TT |
2256 | } |
2257 | ||
2258 | TYPE_LENGTH (resolved_type) = max_len; | |
2259 | return resolved_type; | |
2260 | } | |
2261 | ||
ef83a141 TT |
2262 | /* See gdbtypes.h. */ |
2263 | ||
2264 | bool | |
2265 | variant::matches (ULONGEST value, bool is_unsigned) const | |
2266 | { | |
2267 | for (const discriminant_range &range : discriminants) | |
2268 | if (range.contains (value, is_unsigned)) | |
2269 | return true; | |
2270 | return false; | |
2271 | } | |
2272 | ||
2273 | static void | |
2274 | compute_variant_fields_inner (struct type *type, | |
2275 | struct property_addr_info *addr_stack, | |
2276 | const variant_part &part, | |
2277 | std::vector<bool> &flags); | |
2278 | ||
2279 | /* A helper function to determine which variant fields will be active. | |
2280 | This handles both the variant's direct fields, and any variant | |
2281 | parts embedded in this variant. TYPE is the type we're examining. | |
2282 | ADDR_STACK holds information about the concrete object. VARIANT is | |
2283 | the current variant to be handled. FLAGS is where the results are | |
2284 | stored -- this function sets the Nth element in FLAGS if the | |
2285 | corresponding field is enabled. ENABLED is whether this variant is | |
2286 | enabled or not. */ | |
2287 | ||
2288 | static void | |
2289 | compute_variant_fields_recurse (struct type *type, | |
2290 | struct property_addr_info *addr_stack, | |
2291 | const variant &variant, | |
2292 | std::vector<bool> &flags, | |
2293 | bool enabled) | |
2294 | { | |
2295 | for (int field = variant.first_field; field < variant.last_field; ++field) | |
2296 | flags[field] = enabled; | |
2297 | ||
2298 | for (const variant_part &new_part : variant.parts) | |
2299 | { | |
2300 | if (enabled) | |
2301 | compute_variant_fields_inner (type, addr_stack, new_part, flags); | |
2302 | else | |
2303 | { | |
2304 | for (const auto &sub_variant : new_part.variants) | |
2305 | compute_variant_fields_recurse (type, addr_stack, sub_variant, | |
2306 | flags, enabled); | |
2307 | } | |
2308 | } | |
2309 | } | |
2310 | ||
2311 | /* A helper function to determine which variant fields will be active. | |
2312 | This evaluates the discriminant, decides which variant (if any) is | |
2313 | active, and then updates FLAGS to reflect which fields should be | |
2314 | available. TYPE is the type we're examining. ADDR_STACK holds | |
2315 | information about the concrete object. VARIANT is the current | |
2316 | variant to be handled. FLAGS is where the results are stored -- | |
2317 | this function sets the Nth element in FLAGS if the corresponding | |
2318 | field is enabled. */ | |
2319 | ||
2320 | static void | |
2321 | compute_variant_fields_inner (struct type *type, | |
2322 | struct property_addr_info *addr_stack, | |
2323 | const variant_part &part, | |
2324 | std::vector<bool> &flags) | |
2325 | { | |
2326 | /* Evaluate the discriminant. */ | |
2327 | gdb::optional<ULONGEST> discr_value; | |
2328 | if (part.discriminant_index != -1) | |
2329 | { | |
2330 | int idx = part.discriminant_index; | |
2331 | ||
2332 | if (TYPE_FIELD_LOC_KIND (type, idx) != FIELD_LOC_KIND_BITPOS) | |
2333 | error (_("Cannot determine struct field location" | |
2334 | " (invalid location kind)")); | |
2335 | ||
b249d2c2 TT |
2336 | if (addr_stack->valaddr.data () != NULL) |
2337 | discr_value = unpack_field_as_long (type, addr_stack->valaddr.data (), | |
2338 | idx); | |
ef83a141 TT |
2339 | else |
2340 | { | |
2341 | CORE_ADDR addr = (addr_stack->addr | |
2342 | + (TYPE_FIELD_BITPOS (type, idx) | |
2343 | / TARGET_CHAR_BIT)); | |
2344 | ||
2345 | LONGEST bitsize = TYPE_FIELD_BITSIZE (type, idx); | |
2346 | LONGEST size = bitsize / 8; | |
2347 | if (size == 0) | |
940da03e | 2348 | size = TYPE_LENGTH (type->field (idx).type ()); |
ef83a141 TT |
2349 | |
2350 | gdb_byte bits[sizeof (ULONGEST)]; | |
2351 | read_memory (addr, bits, size); | |
2352 | ||
2353 | LONGEST bitpos = (TYPE_FIELD_BITPOS (type, idx) | |
2354 | % TARGET_CHAR_BIT); | |
2355 | ||
940da03e | 2356 | discr_value = unpack_bits_as_long (type->field (idx).type (), |
ef83a141 TT |
2357 | bits, bitpos, bitsize); |
2358 | } | |
2359 | } | |
2360 | ||
2361 | /* Go through each variant and see which applies. */ | |
2362 | const variant *default_variant = nullptr; | |
2363 | const variant *applied_variant = nullptr; | |
2364 | for (const auto &variant : part.variants) | |
2365 | { | |
2366 | if (variant.is_default ()) | |
2367 | default_variant = &variant; | |
2368 | else if (discr_value.has_value () | |
2369 | && variant.matches (*discr_value, part.is_unsigned)) | |
2370 | { | |
2371 | applied_variant = &variant; | |
2372 | break; | |
2373 | } | |
2374 | } | |
2375 | if (applied_variant == nullptr) | |
2376 | applied_variant = default_variant; | |
2377 | ||
2378 | for (const auto &variant : part.variants) | |
2379 | compute_variant_fields_recurse (type, addr_stack, variant, | |
2380 | flags, applied_variant == &variant); | |
2381 | } | |
2382 | ||
2383 | /* Determine which variant fields are available in TYPE. The enabled | |
2384 | fields are stored in RESOLVED_TYPE. ADDR_STACK holds information | |
2385 | about the concrete object. PARTS describes the top-level variant | |
2386 | parts for this type. */ | |
2387 | ||
2388 | static void | |
2389 | compute_variant_fields (struct type *type, | |
2390 | struct type *resolved_type, | |
2391 | struct property_addr_info *addr_stack, | |
2392 | const gdb::array_view<variant_part> &parts) | |
2393 | { | |
2394 | /* Assume all fields are included by default. */ | |
1f704f76 | 2395 | std::vector<bool> flags (resolved_type->num_fields (), true); |
ef83a141 TT |
2396 | |
2397 | /* Now disable fields based on the variants that control them. */ | |
2398 | for (const auto &part : parts) | |
2399 | compute_variant_fields_inner (type, addr_stack, part, flags); | |
2400 | ||
5e33d5f4 SM |
2401 | resolved_type->set_num_fields |
2402 | (std::count (flags.begin (), flags.end (), true)); | |
3cabb6b0 SM |
2403 | resolved_type->set_fields |
2404 | ((struct field *) | |
2405 | TYPE_ALLOC (resolved_type, | |
2406 | resolved_type->num_fields () * sizeof (struct field))); | |
2407 | ||
ef83a141 | 2408 | int out = 0; |
1f704f76 | 2409 | for (int i = 0; i < type->num_fields (); ++i) |
ef83a141 TT |
2410 | { |
2411 | if (!flags[i]) | |
2412 | continue; | |
2413 | ||
ceacbf6e | 2414 | resolved_type->field (out) = type->field (i); |
ef83a141 TT |
2415 | ++out; |
2416 | } | |
2417 | } | |
2418 | ||
012370f6 | 2419 | /* Resolve dynamic bounds of members of the struct TYPE to static |
df25ebbd JB |
2420 | bounds. ADDR_STACK is a stack of struct property_addr_info to |
2421 | be used if needed during the dynamic resolution. */ | |
012370f6 TT |
2422 | |
2423 | static struct type * | |
df25ebbd JB |
2424 | resolve_dynamic_struct (struct type *type, |
2425 | struct property_addr_info *addr_stack) | |
012370f6 TT |
2426 | { |
2427 | struct type *resolved_type; | |
2428 | int i; | |
6908c509 | 2429 | unsigned resolved_type_bit_length = 0; |
012370f6 | 2430 | |
78134374 | 2431 | gdb_assert (type->code () == TYPE_CODE_STRUCT); |
1f704f76 | 2432 | gdb_assert (type->num_fields () > 0); |
012370f6 TT |
2433 | |
2434 | resolved_type = copy_type (type); | |
ef83a141 | 2435 | |
24e99c6c | 2436 | dynamic_prop *variant_prop = resolved_type->dyn_prop (DYN_PROP_VARIANT_PARTS); |
8c2e4e06 | 2437 | if (variant_prop != nullptr && variant_prop->kind () == PROP_VARIANT_PARTS) |
ef83a141 TT |
2438 | { |
2439 | compute_variant_fields (type, resolved_type, addr_stack, | |
8c2e4e06 | 2440 | *variant_prop->variant_parts ()); |
ef83a141 TT |
2441 | /* We want to leave the property attached, so that the Rust code |
2442 | can tell whether the type was originally an enum. */ | |
8c2e4e06 | 2443 | variant_prop->set_original_type (type); |
ef83a141 TT |
2444 | } |
2445 | else | |
2446 | { | |
3cabb6b0 SM |
2447 | resolved_type->set_fields |
2448 | ((struct field *) | |
2449 | TYPE_ALLOC (resolved_type, | |
2450 | resolved_type->num_fields () * sizeof (struct field))); | |
80fc5e77 SM |
2451 | memcpy (resolved_type->fields (), |
2452 | type->fields (), | |
1f704f76 | 2453 | resolved_type->num_fields () * sizeof (struct field)); |
ef83a141 TT |
2454 | } |
2455 | ||
1f704f76 | 2456 | for (i = 0; i < resolved_type->num_fields (); ++i) |
012370f6 | 2457 | { |
6908c509 | 2458 | unsigned new_bit_length; |
df25ebbd | 2459 | struct property_addr_info pinfo; |
012370f6 | 2460 | |
ceacbf6e | 2461 | if (field_is_static (&resolved_type->field (i))) |
012370f6 TT |
2462 | continue; |
2463 | ||
7d79de9a TT |
2464 | if (TYPE_FIELD_LOC_KIND (resolved_type, i) == FIELD_LOC_KIND_DWARF_BLOCK) |
2465 | { | |
2466 | struct dwarf2_property_baton baton; | |
2467 | baton.property_type | |
940da03e | 2468 | = lookup_pointer_type (resolved_type->field (i).type ()); |
7d79de9a TT |
2469 | baton.locexpr = *TYPE_FIELD_DWARF_BLOCK (resolved_type, i); |
2470 | ||
2471 | struct dynamic_prop prop; | |
8c2e4e06 | 2472 | prop.set_locexpr (&baton); |
7d79de9a TT |
2473 | |
2474 | CORE_ADDR addr; | |
2475 | if (dwarf2_evaluate_property (&prop, nullptr, addr_stack, &addr, | |
2476 | true)) | |
ceacbf6e | 2477 | SET_FIELD_BITPOS (resolved_type->field (i), |
7d79de9a TT |
2478 | TARGET_CHAR_BIT * (addr - addr_stack->addr)); |
2479 | } | |
2480 | ||
6908c509 JB |
2481 | /* As we know this field is not a static field, the field's |
2482 | field_loc_kind should be FIELD_LOC_KIND_BITPOS. Verify | |
2483 | this is the case, but only trigger a simple error rather | |
2484 | than an internal error if that fails. While failing | |
2485 | that verification indicates a bug in our code, the error | |
2486 | is not severe enough to suggest to the user he stops | |
2487 | his debugging session because of it. */ | |
ef83a141 | 2488 | if (TYPE_FIELD_LOC_KIND (resolved_type, i) != FIELD_LOC_KIND_BITPOS) |
6908c509 JB |
2489 | error (_("Cannot determine struct field location" |
2490 | " (invalid location kind)")); | |
df25ebbd | 2491 | |
940da03e | 2492 | pinfo.type = check_typedef (resolved_type->field (i).type ()); |
c3345124 | 2493 | pinfo.valaddr = addr_stack->valaddr; |
9920b434 BH |
2494 | pinfo.addr |
2495 | = (addr_stack->addr | |
2496 | + (TYPE_FIELD_BITPOS (resolved_type, i) / TARGET_CHAR_BIT)); | |
df25ebbd JB |
2497 | pinfo.next = addr_stack; |
2498 | ||
5d14b6e5 | 2499 | resolved_type->field (i).set_type |
940da03e | 2500 | (resolve_dynamic_type_internal (resolved_type->field (i).type (), |
5d14b6e5 | 2501 | &pinfo, 0)); |
df25ebbd JB |
2502 | gdb_assert (TYPE_FIELD_LOC_KIND (resolved_type, i) |
2503 | == FIELD_LOC_KIND_BITPOS); | |
2504 | ||
6908c509 JB |
2505 | new_bit_length = TYPE_FIELD_BITPOS (resolved_type, i); |
2506 | if (TYPE_FIELD_BITSIZE (resolved_type, i) != 0) | |
2507 | new_bit_length += TYPE_FIELD_BITSIZE (resolved_type, i); | |
2508 | else | |
2f33032a KS |
2509 | { |
2510 | struct type *real_type | |
2511 | = check_typedef (resolved_type->field (i).type ()); | |
2512 | ||
2513 | new_bit_length += (TYPE_LENGTH (real_type) * TARGET_CHAR_BIT); | |
2514 | } | |
6908c509 JB |
2515 | |
2516 | /* Normally, we would use the position and size of the last field | |
2517 | to determine the size of the enclosing structure. But GCC seems | |
2518 | to be encoding the position of some fields incorrectly when | |
2519 | the struct contains a dynamic field that is not placed last. | |
2520 | So we compute the struct size based on the field that has | |
2521 | the highest position + size - probably the best we can do. */ | |
2522 | if (new_bit_length > resolved_type_bit_length) | |
2523 | resolved_type_bit_length = new_bit_length; | |
012370f6 TT |
2524 | } |
2525 | ||
9920b434 BH |
2526 | /* The length of a type won't change for fortran, but it does for C and Ada. |
2527 | For fortran the size of dynamic fields might change over time but not the | |
2528 | type length of the structure. If we adapt it, we run into problems | |
2529 | when calculating the element offset for arrays of structs. */ | |
2530 | if (current_language->la_language != language_fortran) | |
2531 | TYPE_LENGTH (resolved_type) | |
2532 | = (resolved_type_bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
6908c509 | 2533 | |
9e195661 PMR |
2534 | /* The Ada language uses this field as a cache for static fixed types: reset |
2535 | it as RESOLVED_TYPE must have its own static fixed type. */ | |
2536 | TYPE_TARGET_TYPE (resolved_type) = NULL; | |
2537 | ||
012370f6 TT |
2538 | return resolved_type; |
2539 | } | |
2540 | ||
d98b7a16 | 2541 | /* Worker for resolved_dynamic_type. */ |
80180f79 | 2542 | |
d98b7a16 | 2543 | static struct type * |
df25ebbd | 2544 | resolve_dynamic_type_internal (struct type *type, |
ee715b5a PMR |
2545 | struct property_addr_info *addr_stack, |
2546 | int top_level) | |
80180f79 SA |
2547 | { |
2548 | struct type *real_type = check_typedef (type); | |
f8e89861 | 2549 | struct type *resolved_type = nullptr; |
d9823cbb | 2550 | struct dynamic_prop *prop; |
3cdcd0ce | 2551 | CORE_ADDR value; |
80180f79 | 2552 | |
ee715b5a | 2553 | if (!is_dynamic_type_internal (real_type, top_level)) |
80180f79 SA |
2554 | return type; |
2555 | ||
f8e89861 TT |
2556 | gdb::optional<CORE_ADDR> type_length; |
2557 | prop = TYPE_DYNAMIC_LENGTH (type); | |
2558 | if (prop != NULL | |
2559 | && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
2560 | type_length = value; | |
2561 | ||
78134374 | 2562 | if (type->code () == TYPE_CODE_TYPEDEF) |
6f8a3220 | 2563 | { |
cac9b138 JK |
2564 | resolved_type = copy_type (type); |
2565 | TYPE_TARGET_TYPE (resolved_type) | |
ee715b5a PMR |
2566 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), addr_stack, |
2567 | top_level); | |
5537b577 JK |
2568 | } |
2569 | else | |
2570 | { | |
2571 | /* Before trying to resolve TYPE, make sure it is not a stub. */ | |
2572 | type = real_type; | |
012370f6 | 2573 | |
78134374 | 2574 | switch (type->code ()) |
5537b577 | 2575 | { |
e771e4be PMR |
2576 | case TYPE_CODE_REF: |
2577 | { | |
2578 | struct property_addr_info pinfo; | |
2579 | ||
2580 | pinfo.type = check_typedef (TYPE_TARGET_TYPE (type)); | |
b249d2c2 TT |
2581 | pinfo.valaddr = {}; |
2582 | if (addr_stack->valaddr.data () != NULL) | |
2583 | pinfo.addr = extract_typed_address (addr_stack->valaddr.data (), | |
2584 | type); | |
c3345124 JB |
2585 | else |
2586 | pinfo.addr = read_memory_typed_address (addr_stack->addr, type); | |
e771e4be PMR |
2587 | pinfo.next = addr_stack; |
2588 | ||
2589 | resolved_type = copy_type (type); | |
2590 | TYPE_TARGET_TYPE (resolved_type) | |
2591 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), | |
2592 | &pinfo, top_level); | |
2593 | break; | |
2594 | } | |
2595 | ||
216a7e6b AB |
2596 | case TYPE_CODE_STRING: |
2597 | /* Strings are very much like an array of characters, and can be | |
2598 | treated as one here. */ | |
5537b577 | 2599 | case TYPE_CODE_ARRAY: |
216a7e6b | 2600 | resolved_type = resolve_dynamic_array_or_string (type, addr_stack); |
5537b577 JK |
2601 | break; |
2602 | ||
2603 | case TYPE_CODE_RANGE: | |
df25ebbd | 2604 | resolved_type = resolve_dynamic_range (type, addr_stack); |
5537b577 JK |
2605 | break; |
2606 | ||
2607 | case TYPE_CODE_UNION: | |
df25ebbd | 2608 | resolved_type = resolve_dynamic_union (type, addr_stack); |
5537b577 JK |
2609 | break; |
2610 | ||
2611 | case TYPE_CODE_STRUCT: | |
df25ebbd | 2612 | resolved_type = resolve_dynamic_struct (type, addr_stack); |
5537b577 JK |
2613 | break; |
2614 | } | |
6f8a3220 | 2615 | } |
80180f79 | 2616 | |
f8e89861 TT |
2617 | if (resolved_type == nullptr) |
2618 | return type; | |
2619 | ||
2620 | if (type_length.has_value ()) | |
2621 | { | |
2622 | TYPE_LENGTH (resolved_type) = *type_length; | |
7aa91313 | 2623 | resolved_type->remove_dyn_prop (DYN_PROP_BYTE_SIZE); |
f8e89861 TT |
2624 | } |
2625 | ||
3cdcd0ce JB |
2626 | /* Resolve data_location attribute. */ |
2627 | prop = TYPE_DATA_LOCATION (resolved_type); | |
63e43d3a PMR |
2628 | if (prop != NULL |
2629 | && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
8c2e4e06 | 2630 | prop->set_const_val (value); |
3cdcd0ce | 2631 | |
80180f79 SA |
2632 | return resolved_type; |
2633 | } | |
2634 | ||
d98b7a16 TT |
2635 | /* See gdbtypes.h */ |
2636 | ||
2637 | struct type * | |
b249d2c2 TT |
2638 | resolve_dynamic_type (struct type *type, |
2639 | gdb::array_view<const gdb_byte> valaddr, | |
c3345124 | 2640 | CORE_ADDR addr) |
d98b7a16 | 2641 | { |
c3345124 JB |
2642 | struct property_addr_info pinfo |
2643 | = {check_typedef (type), valaddr, addr, NULL}; | |
df25ebbd | 2644 | |
ee715b5a | 2645 | return resolve_dynamic_type_internal (type, &pinfo, 1); |
d98b7a16 TT |
2646 | } |
2647 | ||
d9823cbb KB |
2648 | /* See gdbtypes.h */ |
2649 | ||
24e99c6c SM |
2650 | dynamic_prop * |
2651 | type::dyn_prop (dynamic_prop_node_kind prop_kind) const | |
d9823cbb | 2652 | { |
98d48915 | 2653 | dynamic_prop_list *node = this->main_type->dyn_prop_list; |
d9823cbb KB |
2654 | |
2655 | while (node != NULL) | |
2656 | { | |
2657 | if (node->prop_kind == prop_kind) | |
283a9958 | 2658 | return &node->prop; |
d9823cbb KB |
2659 | node = node->next; |
2660 | } | |
2661 | return NULL; | |
2662 | } | |
2663 | ||
2664 | /* See gdbtypes.h */ | |
2665 | ||
2666 | void | |
5c54719c | 2667 | type::add_dyn_prop (dynamic_prop_node_kind prop_kind, dynamic_prop prop) |
d9823cbb KB |
2668 | { |
2669 | struct dynamic_prop_list *temp; | |
2670 | ||
5c54719c | 2671 | gdb_assert (TYPE_OBJFILE_OWNED (this)); |
d9823cbb | 2672 | |
5c54719c | 2673 | temp = XOBNEW (&TYPE_OBJFILE (this)->objfile_obstack, |
50a82047 | 2674 | struct dynamic_prop_list); |
d9823cbb | 2675 | temp->prop_kind = prop_kind; |
283a9958 | 2676 | temp->prop = prop; |
98d48915 | 2677 | temp->next = this->main_type->dyn_prop_list; |
d9823cbb | 2678 | |
98d48915 | 2679 | this->main_type->dyn_prop_list = temp; |
d9823cbb KB |
2680 | } |
2681 | ||
7aa91313 | 2682 | /* See gdbtypes.h. */ |
9920b434 BH |
2683 | |
2684 | void | |
7aa91313 | 2685 | type::remove_dyn_prop (dynamic_prop_node_kind kind) |
9920b434 BH |
2686 | { |
2687 | struct dynamic_prop_list *prev_node, *curr_node; | |
2688 | ||
98d48915 | 2689 | curr_node = this->main_type->dyn_prop_list; |
9920b434 BH |
2690 | prev_node = NULL; |
2691 | ||
2692 | while (NULL != curr_node) | |
2693 | { | |
7aa91313 | 2694 | if (curr_node->prop_kind == kind) |
9920b434 BH |
2695 | { |
2696 | /* Update the linked list but don't free anything. | |
2697 | The property was allocated on objstack and it is not known | |
2698 | if we are on top of it. Nevertheless, everything is released | |
2699 | when the complete objstack is freed. */ | |
2700 | if (NULL == prev_node) | |
98d48915 | 2701 | this->main_type->dyn_prop_list = curr_node->next; |
9920b434 BH |
2702 | else |
2703 | prev_node->next = curr_node->next; | |
2704 | ||
2705 | return; | |
2706 | } | |
2707 | ||
2708 | prev_node = curr_node; | |
2709 | curr_node = curr_node->next; | |
2710 | } | |
2711 | } | |
d9823cbb | 2712 | |
92163a10 JK |
2713 | /* Find the real type of TYPE. This function returns the real type, |
2714 | after removing all layers of typedefs, and completing opaque or stub | |
2715 | types. Completion changes the TYPE argument, but stripping of | |
2716 | typedefs does not. | |
2717 | ||
2718 | Instance flags (e.g. const/volatile) are preserved as typedefs are | |
2719 | stripped. If necessary a new qualified form of the underlying type | |
2720 | is created. | |
2721 | ||
2722 | NOTE: This will return a typedef if TYPE_TARGET_TYPE for the typedef has | |
2723 | not been computed and we're either in the middle of reading symbols, or | |
2724 | there was no name for the typedef in the debug info. | |
2725 | ||
9bc118a5 DE |
2726 | NOTE: Lookup of opaque types can throw errors for invalid symbol files. |
2727 | QUITs in the symbol reading code can also throw. | |
2728 | Thus this function can throw an exception. | |
2729 | ||
92163a10 JK |
2730 | If TYPE is a TYPE_CODE_TYPEDEF, its length is updated to the length of |
2731 | the target type. | |
c906108c SS |
2732 | |
2733 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
0963b4bd | 2734 | we can find a full definition in some other file. If so, copy this |
7ba81444 MS |
2735 | definition, so we can use it in future. There used to be a comment |
2736 | (but not any code) that if we don't find a full definition, we'd | |
2737 | set a flag so we don't spend time in the future checking the same | |
2738 | type. That would be a mistake, though--we might load in more | |
92163a10 | 2739 | symbols which contain a full definition for the type. */ |
c906108c SS |
2740 | |
2741 | struct type * | |
a02fd225 | 2742 | check_typedef (struct type *type) |
c906108c SS |
2743 | { |
2744 | struct type *orig_type = type; | |
a02fd225 | 2745 | |
423c0af8 MS |
2746 | gdb_assert (type); |
2747 | ||
314ad88d PA |
2748 | /* While we're removing typedefs, we don't want to lose qualifiers. |
2749 | E.g., const/volatile. */ | |
2750 | type_instance_flags instance_flags = type->instance_flags (); | |
2751 | ||
78134374 | 2752 | while (type->code () == TYPE_CODE_TYPEDEF) |
c906108c SS |
2753 | { |
2754 | if (!TYPE_TARGET_TYPE (type)) | |
2755 | { | |
0d5cff50 | 2756 | const char *name; |
c906108c SS |
2757 | struct symbol *sym; |
2758 | ||
2759 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 2760 | reading a symtab. Infinite recursion is one danger. */ |
c906108c | 2761 | if (currently_reading_symtab) |
92163a10 | 2762 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2763 | |
7d93a1e0 | 2764 | name = type->name (); |
e86ca25f TT |
2765 | /* FIXME: shouldn't we look in STRUCT_DOMAIN and/or |
2766 | VAR_DOMAIN as appropriate? */ | |
c906108c SS |
2767 | if (name == NULL) |
2768 | { | |
23136709 | 2769 | stub_noname_complaint (); |
92163a10 | 2770 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2771 | } |
d12307c1 | 2772 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
2773 | if (sym) |
2774 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
7ba81444 | 2775 | else /* TYPE_CODE_UNDEF */ |
e9bb382b | 2776 | TYPE_TARGET_TYPE (type) = alloc_type_arch (get_type_arch (type)); |
c906108c SS |
2777 | } |
2778 | type = TYPE_TARGET_TYPE (type); | |
c906108c | 2779 | |
92163a10 JK |
2780 | /* Preserve the instance flags as we traverse down the typedef chain. |
2781 | ||
2782 | Handling address spaces/classes is nasty, what do we do if there's a | |
2783 | conflict? | |
2784 | E.g., what if an outer typedef marks the type as class_1 and an inner | |
2785 | typedef marks the type as class_2? | |
2786 | This is the wrong place to do such error checking. We leave it to | |
2787 | the code that created the typedef in the first place to flag the | |
2788 | error. We just pick the outer address space (akin to letting the | |
2789 | outer cast in a chain of casting win), instead of assuming | |
2790 | "it can't happen". */ | |
2791 | { | |
314ad88d PA |
2792 | const type_instance_flags ALL_SPACES |
2793 | = (TYPE_INSTANCE_FLAG_CODE_SPACE | |
2794 | | TYPE_INSTANCE_FLAG_DATA_SPACE); | |
2795 | const type_instance_flags ALL_CLASSES | |
2796 | = TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL; | |
2797 | ||
2798 | type_instance_flags new_instance_flags = type->instance_flags (); | |
92163a10 JK |
2799 | |
2800 | /* Treat code vs data spaces and address classes separately. */ | |
2801 | if ((instance_flags & ALL_SPACES) != 0) | |
2802 | new_instance_flags &= ~ALL_SPACES; | |
2803 | if ((instance_flags & ALL_CLASSES) != 0) | |
2804 | new_instance_flags &= ~ALL_CLASSES; | |
2805 | ||
2806 | instance_flags |= new_instance_flags; | |
2807 | } | |
2808 | } | |
a02fd225 | 2809 | |
7ba81444 MS |
2810 | /* If this is a struct/class/union with no fields, then check |
2811 | whether a full definition exists somewhere else. This is for | |
2812 | systems where a type definition with no fields is issued for such | |
2813 | types, instead of identifying them as stub types in the first | |
2814 | place. */ | |
c5aa993b | 2815 | |
7ba81444 MS |
2816 | if (TYPE_IS_OPAQUE (type) |
2817 | && opaque_type_resolution | |
2818 | && !currently_reading_symtab) | |
c906108c | 2819 | { |
7d93a1e0 | 2820 | const char *name = type->name (); |
c5aa993b | 2821 | struct type *newtype; |
d8734c88 | 2822 | |
c906108c SS |
2823 | if (name == NULL) |
2824 | { | |
23136709 | 2825 | stub_noname_complaint (); |
92163a10 | 2826 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
2827 | } |
2828 | newtype = lookup_transparent_type (name); | |
ad766c0a | 2829 | |
c906108c | 2830 | if (newtype) |
ad766c0a | 2831 | { |
7ba81444 MS |
2832 | /* If the resolved type and the stub are in the same |
2833 | objfile, then replace the stub type with the real deal. | |
2834 | But if they're in separate objfiles, leave the stub | |
2835 | alone; we'll just look up the transparent type every time | |
2836 | we call check_typedef. We can't create pointers between | |
2837 | types allocated to different objfiles, since they may | |
2838 | have different lifetimes. Trying to copy NEWTYPE over to | |
2839 | TYPE's objfile is pointless, too, since you'll have to | |
2840 | move over any other types NEWTYPE refers to, which could | |
2841 | be an unbounded amount of stuff. */ | |
ad766c0a | 2842 | if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
10242f36 | 2843 | type = make_qualified_type (newtype, type->instance_flags (), type); |
ad766c0a JB |
2844 | else |
2845 | type = newtype; | |
2846 | } | |
c906108c | 2847 | } |
7ba81444 MS |
2848 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
2849 | types. */ | |
e46d3488 | 2850 | else if (type->is_stub () && !currently_reading_symtab) |
c906108c | 2851 | { |
7d93a1e0 | 2852 | const char *name = type->name (); |
e86ca25f TT |
2853 | /* FIXME: shouldn't we look in STRUCT_DOMAIN and/or VAR_DOMAIN |
2854 | as appropriate? */ | |
c906108c | 2855 | struct symbol *sym; |
d8734c88 | 2856 | |
c906108c SS |
2857 | if (name == NULL) |
2858 | { | |
23136709 | 2859 | stub_noname_complaint (); |
92163a10 | 2860 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2861 | } |
d12307c1 | 2862 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0).symbol; |
c906108c | 2863 | if (sym) |
c26f2453 JB |
2864 | { |
2865 | /* Same as above for opaque types, we can replace the stub | |
92163a10 | 2866 | with the complete type only if they are in the same |
c26f2453 | 2867 | objfile. */ |
78134374 | 2868 | if (TYPE_OBJFILE (SYMBOL_TYPE (sym)) == TYPE_OBJFILE (type)) |
10242f36 SM |
2869 | type = make_qualified_type (SYMBOL_TYPE (sym), |
2870 | type->instance_flags (), type); | |
c26f2453 JB |
2871 | else |
2872 | type = SYMBOL_TYPE (sym); | |
2873 | } | |
c906108c SS |
2874 | } |
2875 | ||
d2183968 | 2876 | if (type->target_is_stub ()) |
c906108c | 2877 | { |
c906108c SS |
2878 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); |
2879 | ||
d2183968 | 2880 | if (target_type->is_stub () || target_type->target_is_stub ()) |
c5aa993b | 2881 | { |
73e2eb35 | 2882 | /* Nothing we can do. */ |
c5aa993b | 2883 | } |
78134374 | 2884 | else if (type->code () == TYPE_CODE_RANGE) |
c906108c SS |
2885 | { |
2886 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
8f53807e | 2887 | type->set_target_is_stub (false); |
c906108c | 2888 | } |
78134374 | 2889 | else if (type->code () == TYPE_CODE_ARRAY |
8dbb1375 | 2890 | && update_static_array_size (type)) |
8f53807e | 2891 | type->set_target_is_stub (false); |
c906108c | 2892 | } |
92163a10 JK |
2893 | |
2894 | type = make_qualified_type (type, instance_flags, NULL); | |
2895 | ||
7ba81444 | 2896 | /* Cache TYPE_LENGTH for future use. */ |
c906108c | 2897 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
92163a10 | 2898 | |
c906108c SS |
2899 | return type; |
2900 | } | |
2901 | ||
7ba81444 | 2902 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
48319d1f | 2903 | occurs, silently return a void type. */ |
c91ecb25 | 2904 | |
b9362cc7 | 2905 | static struct type * |
48319d1f | 2906 | safe_parse_type (struct gdbarch *gdbarch, char *p, int length) |
c91ecb25 ND |
2907 | { |
2908 | struct ui_file *saved_gdb_stderr; | |
34365054 | 2909 | struct type *type = NULL; /* Initialize to keep gcc happy. */ |
c91ecb25 | 2910 | |
7ba81444 | 2911 | /* Suppress error messages. */ |
c91ecb25 | 2912 | saved_gdb_stderr = gdb_stderr; |
d7e74731 | 2913 | gdb_stderr = &null_stream; |
c91ecb25 | 2914 | |
7ba81444 | 2915 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
a70b8144 | 2916 | try |
8e7b59a5 KS |
2917 | { |
2918 | type = parse_and_eval_type (p, length); | |
2919 | } | |
230d2906 | 2920 | catch (const gdb_exception_error &except) |
492d29ea PA |
2921 | { |
2922 | type = builtin_type (gdbarch)->builtin_void; | |
2923 | } | |
c91ecb25 | 2924 | |
7ba81444 | 2925 | /* Stop suppressing error messages. */ |
c91ecb25 ND |
2926 | gdb_stderr = saved_gdb_stderr; |
2927 | ||
2928 | return type; | |
2929 | } | |
2930 | ||
c906108c SS |
2931 | /* Ugly hack to convert method stubs into method types. |
2932 | ||
7ba81444 MS |
2933 | He ain't kiddin'. This demangles the name of the method into a |
2934 | string including argument types, parses out each argument type, | |
2935 | generates a string casting a zero to that type, evaluates the | |
2936 | string, and stuffs the resulting type into an argtype vector!!! | |
2937 | Then it knows the type of the whole function (including argument | |
2938 | types for overloading), which info used to be in the stab's but was | |
2939 | removed to hack back the space required for them. */ | |
c906108c | 2940 | |
de17c821 | 2941 | static void |
fba45db2 | 2942 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c | 2943 | { |
50810684 | 2944 | struct gdbarch *gdbarch = get_type_arch (type); |
c906108c SS |
2945 | struct fn_field *f; |
2946 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
8de20a37 TT |
2947 | char *demangled_name = gdb_demangle (mangled_name, |
2948 | DMGL_PARAMS | DMGL_ANSI); | |
c906108c SS |
2949 | char *argtypetext, *p; |
2950 | int depth = 0, argcount = 1; | |
ad2f7632 | 2951 | struct field *argtypes; |
c906108c SS |
2952 | struct type *mtype; |
2953 | ||
2954 | /* Make sure we got back a function string that we can use. */ | |
2955 | if (demangled_name) | |
2956 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
2957 | else |
2958 | p = NULL; | |
c906108c SS |
2959 | |
2960 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
2961 | error (_("Internal: Cannot demangle mangled name `%s'."), |
2962 | mangled_name); | |
c906108c SS |
2963 | |
2964 | /* Now, read in the parameters that define this type. */ | |
2965 | p += 1; | |
2966 | argtypetext = p; | |
2967 | while (*p) | |
2968 | { | |
070ad9f0 | 2969 | if (*p == '(' || *p == '<') |
c906108c SS |
2970 | { |
2971 | depth += 1; | |
2972 | } | |
070ad9f0 | 2973 | else if (*p == ')' || *p == '>') |
c906108c SS |
2974 | { |
2975 | depth -= 1; | |
2976 | } | |
2977 | else if (*p == ',' && depth == 0) | |
2978 | { | |
2979 | argcount += 1; | |
2980 | } | |
2981 | ||
2982 | p += 1; | |
2983 | } | |
2984 | ||
ad2f7632 | 2985 | /* If we read one argument and it was ``void'', don't count it. */ |
61012eef | 2986 | if (startswith (argtypetext, "(void)")) |
ad2f7632 | 2987 | argcount -= 1; |
c906108c | 2988 | |
ad2f7632 DJ |
2989 | /* We need one extra slot, for the THIS pointer. */ |
2990 | ||
2991 | argtypes = (struct field *) | |
2992 | TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); | |
c906108c | 2993 | p = argtypetext; |
4a1970e4 DJ |
2994 | |
2995 | /* Add THIS pointer for non-static methods. */ | |
2996 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
2997 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
2998 | argcount = 0; | |
2999 | else | |
3000 | { | |
5d14b6e5 | 3001 | argtypes[0].set_type (lookup_pointer_type (type)); |
4a1970e4 DJ |
3002 | argcount = 1; |
3003 | } | |
c906108c | 3004 | |
0963b4bd | 3005 | if (*p != ')') /* () means no args, skip while. */ |
c906108c SS |
3006 | { |
3007 | depth = 0; | |
3008 | while (*p) | |
3009 | { | |
3010 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
3011 | { | |
ad2f7632 DJ |
3012 | /* Avoid parsing of ellipsis, they will be handled below. |
3013 | Also avoid ``void'' as above. */ | |
3014 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 | |
3015 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 3016 | { |
5d14b6e5 SM |
3017 | argtypes[argcount].set_type |
3018 | (safe_parse_type (gdbarch, argtypetext, p - argtypetext)); | |
c906108c SS |
3019 | argcount += 1; |
3020 | } | |
3021 | argtypetext = p + 1; | |
3022 | } | |
3023 | ||
070ad9f0 | 3024 | if (*p == '(' || *p == '<') |
c906108c SS |
3025 | { |
3026 | depth += 1; | |
3027 | } | |
070ad9f0 | 3028 | else if (*p == ')' || *p == '>') |
c906108c SS |
3029 | { |
3030 | depth -= 1; | |
3031 | } | |
3032 | ||
3033 | p += 1; | |
3034 | } | |
3035 | } | |
3036 | ||
c906108c SS |
3037 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
3038 | ||
3039 | /* Now update the old "stub" type into a real type. */ | |
3040 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
09e2d7c7 DE |
3041 | /* MTYPE may currently be a function (TYPE_CODE_FUNC). |
3042 | We want a method (TYPE_CODE_METHOD). */ | |
3043 | smash_to_method_type (mtype, type, TYPE_TARGET_TYPE (mtype), | |
3044 | argtypes, argcount, p[-2] == '.'); | |
b4b73759 | 3045 | mtype->set_is_stub (false); |
c906108c | 3046 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
ad2f7632 DJ |
3047 | |
3048 | xfree (demangled_name); | |
c906108c SS |
3049 | } |
3050 | ||
7ba81444 MS |
3051 | /* This is the external interface to check_stub_method, above. This |
3052 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
3053 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
3054 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
3055 | correct. | |
de17c821 DJ |
3056 | |
3057 | This function unfortunately can not die until stabs do. */ | |
3058 | ||
3059 | void | |
3060 | check_stub_method_group (struct type *type, int method_id) | |
3061 | { | |
3062 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
3063 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
de17c821 | 3064 | |
041be526 SM |
3065 | for (int j = 0; j < len; j++) |
3066 | { | |
3067 | if (TYPE_FN_FIELD_STUB (f, j)) | |
de17c821 | 3068 | check_stub_method (type, method_id, j); |
de17c821 DJ |
3069 | } |
3070 | } | |
3071 | ||
405feb71 | 3072 | /* Ensure it is in .rodata (if available) by working around GCC PR 44690. */ |
9655fd1a | 3073 | const struct cplus_struct_type cplus_struct_default = { }; |
c906108c SS |
3074 | |
3075 | void | |
fba45db2 | 3076 | allocate_cplus_struct_type (struct type *type) |
c906108c | 3077 | { |
b4ba55a1 JB |
3078 | if (HAVE_CPLUS_STRUCT (type)) |
3079 | /* Structure was already allocated. Nothing more to do. */ | |
3080 | return; | |
3081 | ||
3082 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF; | |
3083 | TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
3084 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
3085 | *(TYPE_RAW_CPLUS_SPECIFIC (type)) = cplus_struct_default; | |
ae6ae975 | 3086 | set_type_vptr_fieldno (type, -1); |
c906108c SS |
3087 | } |
3088 | ||
b4ba55a1 JB |
3089 | const struct gnat_aux_type gnat_aux_default = |
3090 | { NULL }; | |
3091 | ||
3092 | /* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF, | |
3093 | and allocate the associated gnat-specific data. The gnat-specific | |
3094 | data is also initialized to gnat_aux_default. */ | |
5212577a | 3095 | |
b4ba55a1 JB |
3096 | void |
3097 | allocate_gnat_aux_type (struct type *type) | |
3098 | { | |
3099 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF; | |
3100 | TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) | |
3101 | TYPE_ALLOC (type, sizeof (struct gnat_aux_type)); | |
3102 | *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default; | |
3103 | } | |
3104 | ||
ae438bc5 UW |
3105 | /* Helper function to initialize a newly allocated type. Set type code |
3106 | to CODE and initialize the type-specific fields accordingly. */ | |
3107 | ||
3108 | static void | |
3109 | set_type_code (struct type *type, enum type_code code) | |
3110 | { | |
67607e24 | 3111 | type->set_code (code); |
ae438bc5 UW |
3112 | |
3113 | switch (code) | |
3114 | { | |
3115 | case TYPE_CODE_STRUCT: | |
3116 | case TYPE_CODE_UNION: | |
3117 | case TYPE_CODE_NAMESPACE: | |
3118 | INIT_CPLUS_SPECIFIC (type); | |
3119 | break; | |
3120 | case TYPE_CODE_FLT: | |
3121 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT; | |
3122 | break; | |
3123 | case TYPE_CODE_FUNC: | |
3124 | INIT_FUNC_SPECIFIC (type); | |
3125 | break; | |
3126 | } | |
3127 | } | |
3128 | ||
19f392bc UW |
3129 | /* Helper function to verify floating-point format and size. |
3130 | BIT is the type size in bits; if BIT equals -1, the size is | |
3131 | determined by the floatformat. Returns size to be used. */ | |
3132 | ||
3133 | static int | |
0db7851f | 3134 | verify_floatformat (int bit, const struct floatformat *floatformat) |
19f392bc | 3135 | { |
0db7851f | 3136 | gdb_assert (floatformat != NULL); |
9b790ce7 | 3137 | |
19f392bc | 3138 | if (bit == -1) |
0db7851f | 3139 | bit = floatformat->totalsize; |
19f392bc | 3140 | |
0db7851f UW |
3141 | gdb_assert (bit >= 0); |
3142 | gdb_assert (bit >= floatformat->totalsize); | |
19f392bc UW |
3143 | |
3144 | return bit; | |
3145 | } | |
3146 | ||
0db7851f UW |
3147 | /* Return the floating-point format for a floating-point variable of |
3148 | type TYPE. */ | |
3149 | ||
3150 | const struct floatformat * | |
3151 | floatformat_from_type (const struct type *type) | |
3152 | { | |
78134374 | 3153 | gdb_assert (type->code () == TYPE_CODE_FLT); |
0db7851f UW |
3154 | gdb_assert (TYPE_FLOATFORMAT (type)); |
3155 | return TYPE_FLOATFORMAT (type); | |
3156 | } | |
3157 | ||
c906108c SS |
3158 | /* Helper function to initialize the standard scalar types. |
3159 | ||
86f62fd7 TT |
3160 | If NAME is non-NULL, then it is used to initialize the type name. |
3161 | Note that NAME is not copied; it is required to have a lifetime at | |
3162 | least as long as OBJFILE. */ | |
c906108c SS |
3163 | |
3164 | struct type * | |
77b7c781 | 3165 | init_type (struct objfile *objfile, enum type_code code, int bit, |
19f392bc | 3166 | const char *name) |
c906108c | 3167 | { |
52f0bd74 | 3168 | struct type *type; |
c906108c SS |
3169 | |
3170 | type = alloc_type (objfile); | |
ae438bc5 | 3171 | set_type_code (type, code); |
77b7c781 UW |
3172 | gdb_assert ((bit % TARGET_CHAR_BIT) == 0); |
3173 | TYPE_LENGTH (type) = bit / TARGET_CHAR_BIT; | |
d0e39ea2 | 3174 | type->set_name (name); |
c906108c | 3175 | |
c16abbde | 3176 | return type; |
c906108c | 3177 | } |
19f392bc | 3178 | |
46a4882b PA |
3179 | /* Allocate a TYPE_CODE_ERROR type structure associated with OBJFILE, |
3180 | to use with variables that have no debug info. NAME is the type | |
3181 | name. */ | |
3182 | ||
3183 | static struct type * | |
3184 | init_nodebug_var_type (struct objfile *objfile, const char *name) | |
3185 | { | |
3186 | return init_type (objfile, TYPE_CODE_ERROR, 0, name); | |
3187 | } | |
3188 | ||
19f392bc UW |
3189 | /* Allocate a TYPE_CODE_INT type structure associated with OBJFILE. |
3190 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3191 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
3192 | ||
3193 | struct type * | |
3194 | init_integer_type (struct objfile *objfile, | |
3195 | int bit, int unsigned_p, const char *name) | |
3196 | { | |
3197 | struct type *t; | |
3198 | ||
77b7c781 | 3199 | t = init_type (objfile, TYPE_CODE_INT, bit, name); |
19f392bc | 3200 | if (unsigned_p) |
653223d3 | 3201 | t->set_is_unsigned (true); |
19f392bc | 3202 | |
20a5fcbd TT |
3203 | TYPE_SPECIFIC_FIELD (t) = TYPE_SPECIFIC_INT; |
3204 | TYPE_MAIN_TYPE (t)->type_specific.int_stuff.bit_size = bit; | |
3205 | TYPE_MAIN_TYPE (t)->type_specific.int_stuff.bit_offset = 0; | |
3206 | ||
19f392bc UW |
3207 | return t; |
3208 | } | |
3209 | ||
3210 | /* Allocate a TYPE_CODE_CHAR type structure associated with OBJFILE. | |
3211 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3212 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
3213 | ||
3214 | struct type * | |
3215 | init_character_type (struct objfile *objfile, | |
3216 | int bit, int unsigned_p, const char *name) | |
3217 | { | |
3218 | struct type *t; | |
3219 | ||
77b7c781 | 3220 | t = init_type (objfile, TYPE_CODE_CHAR, bit, name); |
19f392bc | 3221 | if (unsigned_p) |
653223d3 | 3222 | t->set_is_unsigned (true); |
19f392bc UW |
3223 | |
3224 | return t; | |
3225 | } | |
3226 | ||
3227 | /* Allocate a TYPE_CODE_BOOL type structure associated with OBJFILE. | |
3228 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3229 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
3230 | ||
3231 | struct type * | |
3232 | init_boolean_type (struct objfile *objfile, | |
3233 | int bit, int unsigned_p, const char *name) | |
3234 | { | |
3235 | struct type *t; | |
3236 | ||
77b7c781 | 3237 | t = init_type (objfile, TYPE_CODE_BOOL, bit, name); |
19f392bc | 3238 | if (unsigned_p) |
653223d3 | 3239 | t->set_is_unsigned (true); |
19f392bc | 3240 | |
20a5fcbd TT |
3241 | TYPE_SPECIFIC_FIELD (t) = TYPE_SPECIFIC_INT; |
3242 | TYPE_MAIN_TYPE (t)->type_specific.int_stuff.bit_size = bit; | |
3243 | TYPE_MAIN_TYPE (t)->type_specific.int_stuff.bit_offset = 0; | |
3244 | ||
19f392bc UW |
3245 | return t; |
3246 | } | |
3247 | ||
3248 | /* Allocate a TYPE_CODE_FLT type structure associated with OBJFILE. | |
3249 | BIT is the type size in bits; if BIT equals -1, the size is | |
3250 | determined by the floatformat. NAME is the type name. Set the | |
103a685e TT |
3251 | TYPE_FLOATFORMAT from FLOATFORMATS. BYTE_ORDER is the byte order |
3252 | to use. If it is BFD_ENDIAN_UNKNOWN (the default), then the byte | |
3253 | order of the objfile's architecture is used. */ | |
19f392bc UW |
3254 | |
3255 | struct type * | |
3256 | init_float_type (struct objfile *objfile, | |
3257 | int bit, const char *name, | |
103a685e TT |
3258 | const struct floatformat **floatformats, |
3259 | enum bfd_endian byte_order) | |
19f392bc | 3260 | { |
103a685e TT |
3261 | if (byte_order == BFD_ENDIAN_UNKNOWN) |
3262 | { | |
08feed99 | 3263 | struct gdbarch *gdbarch = objfile->arch (); |
103a685e TT |
3264 | byte_order = gdbarch_byte_order (gdbarch); |
3265 | } | |
3266 | const struct floatformat *fmt = floatformats[byte_order]; | |
19f392bc UW |
3267 | struct type *t; |
3268 | ||
0db7851f | 3269 | bit = verify_floatformat (bit, fmt); |
77b7c781 | 3270 | t = init_type (objfile, TYPE_CODE_FLT, bit, name); |
0db7851f | 3271 | TYPE_FLOATFORMAT (t) = fmt; |
19f392bc UW |
3272 | |
3273 | return t; | |
3274 | } | |
3275 | ||
3276 | /* Allocate a TYPE_CODE_DECFLOAT type structure associated with OBJFILE. | |
3277 | BIT is the type size in bits. NAME is the type name. */ | |
3278 | ||
3279 | struct type * | |
3280 | init_decfloat_type (struct objfile *objfile, int bit, const char *name) | |
3281 | { | |
3282 | struct type *t; | |
3283 | ||
77b7c781 | 3284 | t = init_type (objfile, TYPE_CODE_DECFLOAT, bit, name); |
19f392bc UW |
3285 | return t; |
3286 | } | |
3287 | ||
5b930b45 TT |
3288 | /* Allocate a TYPE_CODE_COMPLEX type structure. NAME is the type |
3289 | name. TARGET_TYPE is the component type. */ | |
19f392bc UW |
3290 | |
3291 | struct type * | |
5b930b45 | 3292 | init_complex_type (const char *name, struct type *target_type) |
19f392bc UW |
3293 | { |
3294 | struct type *t; | |
3295 | ||
78134374 SM |
3296 | gdb_assert (target_type->code () == TYPE_CODE_INT |
3297 | || target_type->code () == TYPE_CODE_FLT); | |
5b930b45 TT |
3298 | |
3299 | if (TYPE_MAIN_TYPE (target_type)->flds_bnds.complex_type == nullptr) | |
3300 | { | |
6b9d0dfd | 3301 | if (name == nullptr && target_type->name () != nullptr) |
5b930b45 TT |
3302 | { |
3303 | char *new_name | |
3304 | = (char *) TYPE_ALLOC (target_type, | |
7d93a1e0 | 3305 | strlen (target_type->name ()) |
5b930b45 TT |
3306 | + strlen ("_Complex ") + 1); |
3307 | strcpy (new_name, "_Complex "); | |
7d93a1e0 | 3308 | strcat (new_name, target_type->name ()); |
5b930b45 TT |
3309 | name = new_name; |
3310 | } | |
3311 | ||
3312 | t = alloc_type_copy (target_type); | |
3313 | set_type_code (t, TYPE_CODE_COMPLEX); | |
3314 | TYPE_LENGTH (t) = 2 * TYPE_LENGTH (target_type); | |
d0e39ea2 | 3315 | t->set_name (name); |
5b930b45 TT |
3316 | |
3317 | TYPE_TARGET_TYPE (t) = target_type; | |
3318 | TYPE_MAIN_TYPE (target_type)->flds_bnds.complex_type = t; | |
3319 | } | |
3320 | ||
3321 | return TYPE_MAIN_TYPE (target_type)->flds_bnds.complex_type; | |
19f392bc UW |
3322 | } |
3323 | ||
3324 | /* Allocate a TYPE_CODE_PTR type structure associated with OBJFILE. | |
3325 | BIT is the pointer type size in bits. NAME is the type name. | |
3326 | TARGET_TYPE is the pointer target type. Always sets the pointer type's | |
3327 | TYPE_UNSIGNED flag. */ | |
3328 | ||
3329 | struct type * | |
3330 | init_pointer_type (struct objfile *objfile, | |
3331 | int bit, const char *name, struct type *target_type) | |
3332 | { | |
3333 | struct type *t; | |
3334 | ||
77b7c781 | 3335 | t = init_type (objfile, TYPE_CODE_PTR, bit, name); |
19f392bc | 3336 | TYPE_TARGET_TYPE (t) = target_type; |
653223d3 | 3337 | t->set_is_unsigned (true); |
19f392bc UW |
3338 | return t; |
3339 | } | |
3340 | ||
2b4424c3 TT |
3341 | /* See gdbtypes.h. */ |
3342 | ||
3343 | unsigned | |
3344 | type_raw_align (struct type *type) | |
3345 | { | |
3346 | if (type->align_log2 != 0) | |
3347 | return 1 << (type->align_log2 - 1); | |
3348 | return 0; | |
3349 | } | |
3350 | ||
3351 | /* See gdbtypes.h. */ | |
3352 | ||
3353 | unsigned | |
3354 | type_align (struct type *type) | |
3355 | { | |
5561fc30 | 3356 | /* Check alignment provided in the debug information. */ |
2b4424c3 TT |
3357 | unsigned raw_align = type_raw_align (type); |
3358 | if (raw_align != 0) | |
3359 | return raw_align; | |
3360 | ||
5561fc30 AB |
3361 | /* Allow the architecture to provide an alignment. */ |
3362 | struct gdbarch *arch = get_type_arch (type); | |
3363 | ULONGEST align = gdbarch_type_align (arch, type); | |
3364 | if (align != 0) | |
3365 | return align; | |
3366 | ||
78134374 | 3367 | switch (type->code ()) |
2b4424c3 TT |
3368 | { |
3369 | case TYPE_CODE_PTR: | |
3370 | case TYPE_CODE_FUNC: | |
3371 | case TYPE_CODE_FLAGS: | |
3372 | case TYPE_CODE_INT: | |
75ba10dc | 3373 | case TYPE_CODE_RANGE: |
2b4424c3 TT |
3374 | case TYPE_CODE_FLT: |
3375 | case TYPE_CODE_ENUM: | |
3376 | case TYPE_CODE_REF: | |
3377 | case TYPE_CODE_RVALUE_REF: | |
3378 | case TYPE_CODE_CHAR: | |
3379 | case TYPE_CODE_BOOL: | |
3380 | case TYPE_CODE_DECFLOAT: | |
70cd633e AB |
3381 | case TYPE_CODE_METHODPTR: |
3382 | case TYPE_CODE_MEMBERPTR: | |
5561fc30 | 3383 | align = type_length_units (check_typedef (type)); |
2b4424c3 TT |
3384 | break; |
3385 | ||
3386 | case TYPE_CODE_ARRAY: | |
3387 | case TYPE_CODE_COMPLEX: | |
3388 | case TYPE_CODE_TYPEDEF: | |
3389 | align = type_align (TYPE_TARGET_TYPE (type)); | |
3390 | break; | |
3391 | ||
3392 | case TYPE_CODE_STRUCT: | |
3393 | case TYPE_CODE_UNION: | |
3394 | { | |
41077b66 | 3395 | int number_of_non_static_fields = 0; |
1f704f76 | 3396 | for (unsigned i = 0; i < type->num_fields (); ++i) |
2b4424c3 | 3397 | { |
ceacbf6e | 3398 | if (!field_is_static (&type->field (i))) |
2b4424c3 | 3399 | { |
41077b66 | 3400 | number_of_non_static_fields++; |
940da03e | 3401 | ULONGEST f_align = type_align (type->field (i).type ()); |
bf9a735e AB |
3402 | if (f_align == 0) |
3403 | { | |
3404 | /* Don't pretend we know something we don't. */ | |
3405 | align = 0; | |
3406 | break; | |
3407 | } | |
3408 | if (f_align > align) | |
3409 | align = f_align; | |
2b4424c3 | 3410 | } |
2b4424c3 | 3411 | } |
41077b66 AB |
3412 | /* A struct with no fields, or with only static fields has an |
3413 | alignment of 1. */ | |
3414 | if (number_of_non_static_fields == 0) | |
3415 | align = 1; | |
2b4424c3 TT |
3416 | } |
3417 | break; | |
3418 | ||
3419 | case TYPE_CODE_SET: | |
2b4424c3 TT |
3420 | case TYPE_CODE_STRING: |
3421 | /* Not sure what to do here, and these can't appear in C or C++ | |
3422 | anyway. */ | |
3423 | break; | |
3424 | ||
2b4424c3 TT |
3425 | case TYPE_CODE_VOID: |
3426 | align = 1; | |
3427 | break; | |
3428 | ||
3429 | case TYPE_CODE_ERROR: | |
3430 | case TYPE_CODE_METHOD: | |
3431 | default: | |
3432 | break; | |
3433 | } | |
3434 | ||
3435 | if ((align & (align - 1)) != 0) | |
3436 | { | |
3437 | /* Not a power of 2, so pass. */ | |
3438 | align = 0; | |
3439 | } | |
3440 | ||
3441 | return align; | |
3442 | } | |
3443 | ||
3444 | /* See gdbtypes.h. */ | |
3445 | ||
3446 | bool | |
3447 | set_type_align (struct type *type, ULONGEST align) | |
3448 | { | |
3449 | /* Must be a power of 2. Zero is ok. */ | |
3450 | gdb_assert ((align & (align - 1)) == 0); | |
3451 | ||
3452 | unsigned result = 0; | |
3453 | while (align != 0) | |
3454 | { | |
3455 | ++result; | |
3456 | align >>= 1; | |
3457 | } | |
3458 | ||
3459 | if (result >= (1 << TYPE_ALIGN_BITS)) | |
3460 | return false; | |
3461 | ||
3462 | type->align_log2 = result; | |
3463 | return true; | |
3464 | } | |
3465 | ||
5212577a DE |
3466 | \f |
3467 | /* Queries on types. */ | |
c906108c | 3468 | |
c906108c | 3469 | int |
fba45db2 | 3470 | can_dereference (struct type *t) |
c906108c | 3471 | { |
7ba81444 MS |
3472 | /* FIXME: Should we return true for references as well as |
3473 | pointers? */ | |
f168693b | 3474 | t = check_typedef (t); |
c906108c SS |
3475 | return |
3476 | (t != NULL | |
78134374 SM |
3477 | && t->code () == TYPE_CODE_PTR |
3478 | && TYPE_TARGET_TYPE (t)->code () != TYPE_CODE_VOID); | |
c906108c SS |
3479 | } |
3480 | ||
adf40b2e | 3481 | int |
fba45db2 | 3482 | is_integral_type (struct type *t) |
adf40b2e | 3483 | { |
f168693b | 3484 | t = check_typedef (t); |
adf40b2e JM |
3485 | return |
3486 | ((t != NULL) | |
78134374 SM |
3487 | && ((t->code () == TYPE_CODE_INT) |
3488 | || (t->code () == TYPE_CODE_ENUM) | |
3489 | || (t->code () == TYPE_CODE_FLAGS) | |
3490 | || (t->code () == TYPE_CODE_CHAR) | |
3491 | || (t->code () == TYPE_CODE_RANGE) | |
3492 | || (t->code () == TYPE_CODE_BOOL))); | |
adf40b2e JM |
3493 | } |
3494 | ||
70100014 UW |
3495 | int |
3496 | is_floating_type (struct type *t) | |
3497 | { | |
3498 | t = check_typedef (t); | |
3499 | return | |
3500 | ((t != NULL) | |
78134374 SM |
3501 | && ((t->code () == TYPE_CODE_FLT) |
3502 | || (t->code () == TYPE_CODE_DECFLOAT))); | |
70100014 UW |
3503 | } |
3504 | ||
e09342b5 TJB |
3505 | /* Return true if TYPE is scalar. */ |
3506 | ||
220475ed | 3507 | int |
e09342b5 TJB |
3508 | is_scalar_type (struct type *type) |
3509 | { | |
f168693b | 3510 | type = check_typedef (type); |
e09342b5 | 3511 | |
78134374 | 3512 | switch (type->code ()) |
e09342b5 TJB |
3513 | { |
3514 | case TYPE_CODE_ARRAY: | |
3515 | case TYPE_CODE_STRUCT: | |
3516 | case TYPE_CODE_UNION: | |
3517 | case TYPE_CODE_SET: | |
3518 | case TYPE_CODE_STRING: | |
e09342b5 TJB |
3519 | return 0; |
3520 | default: | |
3521 | return 1; | |
3522 | } | |
3523 | } | |
3524 | ||
3525 | /* Return true if T is scalar, or a composite type which in practice has | |
90e4670f TJB |
3526 | the memory layout of a scalar type. E.g., an array or struct with only |
3527 | one scalar element inside it, or a union with only scalar elements. */ | |
e09342b5 TJB |
3528 | |
3529 | int | |
3530 | is_scalar_type_recursive (struct type *t) | |
3531 | { | |
f168693b | 3532 | t = check_typedef (t); |
e09342b5 TJB |
3533 | |
3534 | if (is_scalar_type (t)) | |
3535 | return 1; | |
3536 | /* Are we dealing with an array or string of known dimensions? */ | |
78134374 | 3537 | else if ((t->code () == TYPE_CODE_ARRAY |
1f704f76 | 3538 | || t->code () == TYPE_CODE_STRING) && t->num_fields () == 1 |
3d967001 | 3539 | && t->index_type ()->code () == TYPE_CODE_RANGE) |
e09342b5 TJB |
3540 | { |
3541 | LONGEST low_bound, high_bound; | |
3542 | struct type *elt_type = check_typedef (TYPE_TARGET_TYPE (t)); | |
3543 | ||
3d967001 | 3544 | get_discrete_bounds (t->index_type (), &low_bound, &high_bound); |
e09342b5 TJB |
3545 | |
3546 | return high_bound == low_bound && is_scalar_type_recursive (elt_type); | |
3547 | } | |
3548 | /* Are we dealing with a struct with one element? */ | |
1f704f76 | 3549 | else if (t->code () == TYPE_CODE_STRUCT && t->num_fields () == 1) |
940da03e | 3550 | return is_scalar_type_recursive (t->field (0).type ()); |
78134374 | 3551 | else if (t->code () == TYPE_CODE_UNION) |
e09342b5 | 3552 | { |
1f704f76 | 3553 | int i, n = t->num_fields (); |
e09342b5 TJB |
3554 | |
3555 | /* If all elements of the union are scalar, then the union is scalar. */ | |
3556 | for (i = 0; i < n; i++) | |
940da03e | 3557 | if (!is_scalar_type_recursive (t->field (i).type ())) |
e09342b5 TJB |
3558 | return 0; |
3559 | ||
3560 | return 1; | |
3561 | } | |
3562 | ||
3563 | return 0; | |
3564 | } | |
3565 | ||
6c659fc2 SC |
3566 | /* Return true is T is a class or a union. False otherwise. */ |
3567 | ||
3568 | int | |
3569 | class_or_union_p (const struct type *t) | |
3570 | { | |
78134374 SM |
3571 | return (t->code () == TYPE_CODE_STRUCT |
3572 | || t->code () == TYPE_CODE_UNION); | |
6c659fc2 SC |
3573 | } |
3574 | ||
4e8f195d TT |
3575 | /* A helper function which returns true if types A and B represent the |
3576 | "same" class type. This is true if the types have the same main | |
3577 | type, or the same name. */ | |
3578 | ||
3579 | int | |
3580 | class_types_same_p (const struct type *a, const struct type *b) | |
3581 | { | |
3582 | return (TYPE_MAIN_TYPE (a) == TYPE_MAIN_TYPE (b) | |
7d93a1e0 SM |
3583 | || (a->name () && b->name () |
3584 | && !strcmp (a->name (), b->name ()))); | |
4e8f195d TT |
3585 | } |
3586 | ||
a9d5ef47 SW |
3587 | /* If BASE is an ancestor of DCLASS return the distance between them. |
3588 | otherwise return -1; | |
3589 | eg: | |
3590 | ||
3591 | class A {}; | |
3592 | class B: public A {}; | |
3593 | class C: public B {}; | |
3594 | class D: C {}; | |
3595 | ||
3596 | distance_to_ancestor (A, A, 0) = 0 | |
3597 | distance_to_ancestor (A, B, 0) = 1 | |
3598 | distance_to_ancestor (A, C, 0) = 2 | |
3599 | distance_to_ancestor (A, D, 0) = 3 | |
3600 | ||
3601 | If PUBLIC is 1 then only public ancestors are considered, | |
3602 | and the function returns the distance only if BASE is a public ancestor | |
3603 | of DCLASS. | |
3604 | Eg: | |
3605 | ||
0963b4bd | 3606 | distance_to_ancestor (A, D, 1) = -1. */ |
c906108c | 3607 | |
0526b37a | 3608 | static int |
fe978cb0 | 3609 | distance_to_ancestor (struct type *base, struct type *dclass, int is_public) |
c906108c SS |
3610 | { |
3611 | int i; | |
a9d5ef47 | 3612 | int d; |
c5aa993b | 3613 | |
f168693b SM |
3614 | base = check_typedef (base); |
3615 | dclass = check_typedef (dclass); | |
c906108c | 3616 | |
4e8f195d | 3617 | if (class_types_same_p (base, dclass)) |
a9d5ef47 | 3618 | return 0; |
c906108c SS |
3619 | |
3620 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
4e8f195d | 3621 | { |
fe978cb0 | 3622 | if (is_public && ! BASETYPE_VIA_PUBLIC (dclass, i)) |
0526b37a SW |
3623 | continue; |
3624 | ||
fe978cb0 | 3625 | d = distance_to_ancestor (base, TYPE_BASECLASS (dclass, i), is_public); |
a9d5ef47 SW |
3626 | if (d >= 0) |
3627 | return 1 + d; | |
4e8f195d | 3628 | } |
c906108c | 3629 | |
a9d5ef47 | 3630 | return -1; |
c906108c | 3631 | } |
4e8f195d | 3632 | |
0526b37a SW |
3633 | /* Check whether BASE is an ancestor or base class or DCLASS |
3634 | Return 1 if so, and 0 if not. | |
3635 | Note: If BASE and DCLASS are of the same type, this function | |
3636 | will return 1. So for some class A, is_ancestor (A, A) will | |
3637 | return 1. */ | |
3638 | ||
3639 | int | |
3640 | is_ancestor (struct type *base, struct type *dclass) | |
3641 | { | |
a9d5ef47 | 3642 | return distance_to_ancestor (base, dclass, 0) >= 0; |
0526b37a SW |
3643 | } |
3644 | ||
4e8f195d TT |
3645 | /* Like is_ancestor, but only returns true when BASE is a public |
3646 | ancestor of DCLASS. */ | |
3647 | ||
3648 | int | |
3649 | is_public_ancestor (struct type *base, struct type *dclass) | |
3650 | { | |
a9d5ef47 | 3651 | return distance_to_ancestor (base, dclass, 1) >= 0; |
4e8f195d TT |
3652 | } |
3653 | ||
3654 | /* A helper function for is_unique_ancestor. */ | |
3655 | ||
3656 | static int | |
3657 | is_unique_ancestor_worker (struct type *base, struct type *dclass, | |
3658 | int *offset, | |
8af8e3bc PA |
3659 | const gdb_byte *valaddr, int embedded_offset, |
3660 | CORE_ADDR address, struct value *val) | |
4e8f195d TT |
3661 | { |
3662 | int i, count = 0; | |
3663 | ||
f168693b SM |
3664 | base = check_typedef (base); |
3665 | dclass = check_typedef (dclass); | |
4e8f195d TT |
3666 | |
3667 | for (i = 0; i < TYPE_N_BASECLASSES (dclass) && count < 2; ++i) | |
3668 | { | |
8af8e3bc PA |
3669 | struct type *iter; |
3670 | int this_offset; | |
4e8f195d | 3671 | |
8af8e3bc PA |
3672 | iter = check_typedef (TYPE_BASECLASS (dclass, i)); |
3673 | ||
3674 | this_offset = baseclass_offset (dclass, i, valaddr, embedded_offset, | |
3675 | address, val); | |
4e8f195d TT |
3676 | |
3677 | if (class_types_same_p (base, iter)) | |
3678 | { | |
3679 | /* If this is the first subclass, set *OFFSET and set count | |
3680 | to 1. Otherwise, if this is at the same offset as | |
3681 | previous instances, do nothing. Otherwise, increment | |
3682 | count. */ | |
3683 | if (*offset == -1) | |
3684 | { | |
3685 | *offset = this_offset; | |
3686 | count = 1; | |
3687 | } | |
3688 | else if (this_offset == *offset) | |
3689 | { | |
3690 | /* Nothing. */ | |
3691 | } | |
3692 | else | |
3693 | ++count; | |
3694 | } | |
3695 | else | |
3696 | count += is_unique_ancestor_worker (base, iter, offset, | |
8af8e3bc PA |
3697 | valaddr, |
3698 | embedded_offset + this_offset, | |
3699 | address, val); | |
4e8f195d TT |
3700 | } |
3701 | ||
3702 | return count; | |
3703 | } | |
3704 | ||
3705 | /* Like is_ancestor, but only returns true if BASE is a unique base | |
3706 | class of the type of VAL. */ | |
3707 | ||
3708 | int | |
3709 | is_unique_ancestor (struct type *base, struct value *val) | |
3710 | { | |
3711 | int offset = -1; | |
3712 | ||
3713 | return is_unique_ancestor_worker (base, value_type (val), &offset, | |
8af8e3bc PA |
3714 | value_contents_for_printing (val), |
3715 | value_embedded_offset (val), | |
3716 | value_address (val), val) == 1; | |
4e8f195d TT |
3717 | } |
3718 | ||
7ab4a236 TT |
3719 | /* See gdbtypes.h. */ |
3720 | ||
3721 | enum bfd_endian | |
3722 | type_byte_order (const struct type *type) | |
3723 | { | |
3724 | bfd_endian byteorder = gdbarch_byte_order (get_type_arch (type)); | |
04f5bab2 | 3725 | if (type->endianity_is_not_default ()) |
7ab4a236 TT |
3726 | { |
3727 | if (byteorder == BFD_ENDIAN_BIG) | |
3728 | return BFD_ENDIAN_LITTLE; | |
3729 | else | |
3730 | { | |
3731 | gdb_assert (byteorder == BFD_ENDIAN_LITTLE); | |
3732 | return BFD_ENDIAN_BIG; | |
3733 | } | |
3734 | } | |
3735 | ||
3736 | return byteorder; | |
3737 | } | |
3738 | ||
c906108c | 3739 | \f |
5212577a | 3740 | /* Overload resolution. */ |
c906108c | 3741 | |
6403aeea SW |
3742 | /* Return the sum of the rank of A with the rank of B. */ |
3743 | ||
3744 | struct rank | |
3745 | sum_ranks (struct rank a, struct rank b) | |
3746 | { | |
3747 | struct rank c; | |
3748 | c.rank = a.rank + b.rank; | |
a9d5ef47 | 3749 | c.subrank = a.subrank + b.subrank; |
6403aeea SW |
3750 | return c; |
3751 | } | |
3752 | ||
3753 | /* Compare rank A and B and return: | |
3754 | 0 if a = b | |
3755 | 1 if a is better than b | |
3756 | -1 if b is better than a. */ | |
3757 | ||
3758 | int | |
3759 | compare_ranks (struct rank a, struct rank b) | |
3760 | { | |
3761 | if (a.rank == b.rank) | |
a9d5ef47 SW |
3762 | { |
3763 | if (a.subrank == b.subrank) | |
3764 | return 0; | |
3765 | if (a.subrank < b.subrank) | |
3766 | return 1; | |
3767 | if (a.subrank > b.subrank) | |
3768 | return -1; | |
3769 | } | |
6403aeea SW |
3770 | |
3771 | if (a.rank < b.rank) | |
3772 | return 1; | |
3773 | ||
0963b4bd | 3774 | /* a.rank > b.rank */ |
6403aeea SW |
3775 | return -1; |
3776 | } | |
c5aa993b | 3777 | |
0963b4bd | 3778 | /* Functions for overload resolution begin here. */ |
c906108c SS |
3779 | |
3780 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
3781 | 0 => A and B are identical |
3782 | 1 => A and B are incomparable | |
3783 | 2 => A is better than B | |
3784 | 3 => A is worse than B */ | |
c906108c SS |
3785 | |
3786 | int | |
82ceee50 | 3787 | compare_badness (const badness_vector &a, const badness_vector &b) |
c906108c SS |
3788 | { |
3789 | int i; | |
3790 | int tmp; | |
c5aa993b JM |
3791 | short found_pos = 0; /* any positives in c? */ |
3792 | short found_neg = 0; /* any negatives in c? */ | |
3793 | ||
82ceee50 PA |
3794 | /* differing sizes => incomparable */ |
3795 | if (a.size () != b.size ()) | |
c906108c SS |
3796 | return 1; |
3797 | ||
c5aa993b | 3798 | /* Subtract b from a */ |
82ceee50 | 3799 | for (i = 0; i < a.size (); i++) |
c906108c | 3800 | { |
82ceee50 | 3801 | tmp = compare_ranks (b[i], a[i]); |
c906108c | 3802 | if (tmp > 0) |
c5aa993b | 3803 | found_pos = 1; |
c906108c | 3804 | else if (tmp < 0) |
c5aa993b | 3805 | found_neg = 1; |
c906108c SS |
3806 | } |
3807 | ||
3808 | if (found_pos) | |
3809 | { | |
3810 | if (found_neg) | |
c5aa993b | 3811 | return 1; /* incomparable */ |
c906108c | 3812 | else |
c5aa993b | 3813 | return 3; /* A > B */ |
c906108c | 3814 | } |
c5aa993b JM |
3815 | else |
3816 | /* no positives */ | |
c906108c SS |
3817 | { |
3818 | if (found_neg) | |
c5aa993b | 3819 | return 2; /* A < B */ |
c906108c | 3820 | else |
c5aa993b | 3821 | return 0; /* A == B */ |
c906108c SS |
3822 | } |
3823 | } | |
3824 | ||
6b1747cd | 3825 | /* Rank a function by comparing its parameter types (PARMS), to the |
82ceee50 PA |
3826 | types of an argument list (ARGS). Return the badness vector. This |
3827 | has ARGS.size() + 1 entries. */ | |
c906108c | 3828 | |
82ceee50 | 3829 | badness_vector |
6b1747cd PA |
3830 | rank_function (gdb::array_view<type *> parms, |
3831 | gdb::array_view<value *> args) | |
c906108c | 3832 | { |
82ceee50 PA |
3833 | /* add 1 for the length-match rank. */ |
3834 | badness_vector bv; | |
3835 | bv.reserve (1 + args.size ()); | |
c906108c SS |
3836 | |
3837 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 3838 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 3839 | |
c906108c | 3840 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
3841 | arguments and ellipsis parameter lists, we should consider those |
3842 | and rank the length-match more finely. */ | |
c906108c | 3843 | |
82ceee50 PA |
3844 | bv.push_back ((args.size () != parms.size ()) |
3845 | ? LENGTH_MISMATCH_BADNESS | |
3846 | : EXACT_MATCH_BADNESS); | |
c906108c | 3847 | |
0963b4bd | 3848 | /* Now rank all the parameters of the candidate function. */ |
82ceee50 PA |
3849 | size_t min_len = std::min (parms.size (), args.size ()); |
3850 | ||
3851 | for (size_t i = 0; i < min_len; i++) | |
3852 | bv.push_back (rank_one_type (parms[i], value_type (args[i]), | |
3853 | args[i])); | |
c906108c | 3854 | |
0963b4bd | 3855 | /* If more arguments than parameters, add dummy entries. */ |
82ceee50 PA |
3856 | for (size_t i = min_len; i < args.size (); i++) |
3857 | bv.push_back (TOO_FEW_PARAMS_BADNESS); | |
c906108c SS |
3858 | |
3859 | return bv; | |
3860 | } | |
3861 | ||
973ccf8b DJ |
3862 | /* Compare the names of two integer types, assuming that any sign |
3863 | qualifiers have been checked already. We do it this way because | |
3864 | there may be an "int" in the name of one of the types. */ | |
3865 | ||
3866 | static int | |
3867 | integer_types_same_name_p (const char *first, const char *second) | |
3868 | { | |
3869 | int first_p, second_p; | |
3870 | ||
7ba81444 MS |
3871 | /* If both are shorts, return 1; if neither is a short, keep |
3872 | checking. */ | |
973ccf8b DJ |
3873 | first_p = (strstr (first, "short") != NULL); |
3874 | second_p = (strstr (second, "short") != NULL); | |
3875 | if (first_p && second_p) | |
3876 | return 1; | |
3877 | if (first_p || second_p) | |
3878 | return 0; | |
3879 | ||
3880 | /* Likewise for long. */ | |
3881 | first_p = (strstr (first, "long") != NULL); | |
3882 | second_p = (strstr (second, "long") != NULL); | |
3883 | if (first_p && second_p) | |
3884 | return 1; | |
3885 | if (first_p || second_p) | |
3886 | return 0; | |
3887 | ||
3888 | /* Likewise for char. */ | |
3889 | first_p = (strstr (first, "char") != NULL); | |
3890 | second_p = (strstr (second, "char") != NULL); | |
3891 | if (first_p && second_p) | |
3892 | return 1; | |
3893 | if (first_p || second_p) | |
3894 | return 0; | |
3895 | ||
3896 | /* They must both be ints. */ | |
3897 | return 1; | |
3898 | } | |
3899 | ||
894882e3 TT |
3900 | /* Compares type A to type B. Returns true if they represent the same |
3901 | type, false otherwise. */ | |
7062b0a0 | 3902 | |
894882e3 | 3903 | bool |
7062b0a0 SW |
3904 | types_equal (struct type *a, struct type *b) |
3905 | { | |
3906 | /* Identical type pointers. */ | |
3907 | /* However, this still doesn't catch all cases of same type for b | |
3908 | and a. The reason is that builtin types are different from | |
3909 | the same ones constructed from the object. */ | |
3910 | if (a == b) | |
894882e3 | 3911 | return true; |
7062b0a0 SW |
3912 | |
3913 | /* Resolve typedefs */ | |
78134374 | 3914 | if (a->code () == TYPE_CODE_TYPEDEF) |
7062b0a0 | 3915 | a = check_typedef (a); |
78134374 | 3916 | if (b->code () == TYPE_CODE_TYPEDEF) |
7062b0a0 SW |
3917 | b = check_typedef (b); |
3918 | ||
3919 | /* If after resolving typedefs a and b are not of the same type | |
3920 | code then they are not equal. */ | |
78134374 | 3921 | if (a->code () != b->code ()) |
894882e3 | 3922 | return false; |
7062b0a0 SW |
3923 | |
3924 | /* If a and b are both pointers types or both reference types then | |
3925 | they are equal of the same type iff the objects they refer to are | |
3926 | of the same type. */ | |
78134374 SM |
3927 | if (a->code () == TYPE_CODE_PTR |
3928 | || a->code () == TYPE_CODE_REF) | |
7062b0a0 SW |
3929 | return types_equal (TYPE_TARGET_TYPE (a), |
3930 | TYPE_TARGET_TYPE (b)); | |
3931 | ||
0963b4bd | 3932 | /* Well, damnit, if the names are exactly the same, I'll say they |
7062b0a0 SW |
3933 | are exactly the same. This happens when we generate method |
3934 | stubs. The types won't point to the same address, but they | |
0963b4bd | 3935 | really are the same. */ |
7062b0a0 | 3936 | |
7d93a1e0 SM |
3937 | if (a->name () && b->name () |
3938 | && strcmp (a->name (), b->name ()) == 0) | |
894882e3 | 3939 | return true; |
7062b0a0 SW |
3940 | |
3941 | /* Check if identical after resolving typedefs. */ | |
3942 | if (a == b) | |
894882e3 | 3943 | return true; |
7062b0a0 | 3944 | |
9ce98649 TT |
3945 | /* Two function types are equal if their argument and return types |
3946 | are equal. */ | |
78134374 | 3947 | if (a->code () == TYPE_CODE_FUNC) |
9ce98649 TT |
3948 | { |
3949 | int i; | |
3950 | ||
1f704f76 | 3951 | if (a->num_fields () != b->num_fields ()) |
894882e3 | 3952 | return false; |
9ce98649 TT |
3953 | |
3954 | if (!types_equal (TYPE_TARGET_TYPE (a), TYPE_TARGET_TYPE (b))) | |
894882e3 | 3955 | return false; |
9ce98649 | 3956 | |
1f704f76 | 3957 | for (i = 0; i < a->num_fields (); ++i) |
940da03e | 3958 | if (!types_equal (a->field (i).type (), b->field (i).type ())) |
894882e3 | 3959 | return false; |
9ce98649 | 3960 | |
894882e3 | 3961 | return true; |
9ce98649 TT |
3962 | } |
3963 | ||
894882e3 | 3964 | return false; |
7062b0a0 | 3965 | } |
ca092b61 DE |
3966 | \f |
3967 | /* Deep comparison of types. */ | |
3968 | ||
3969 | /* An entry in the type-equality bcache. */ | |
3970 | ||
894882e3 | 3971 | struct type_equality_entry |
ca092b61 | 3972 | { |
894882e3 TT |
3973 | type_equality_entry (struct type *t1, struct type *t2) |
3974 | : type1 (t1), | |
3975 | type2 (t2) | |
3976 | { | |
3977 | } | |
ca092b61 | 3978 | |
894882e3 TT |
3979 | struct type *type1, *type2; |
3980 | }; | |
ca092b61 | 3981 | |
894882e3 TT |
3982 | /* A helper function to compare two strings. Returns true if they are |
3983 | the same, false otherwise. Handles NULLs properly. */ | |
ca092b61 | 3984 | |
894882e3 | 3985 | static bool |
ca092b61 DE |
3986 | compare_maybe_null_strings (const char *s, const char *t) |
3987 | { | |
894882e3 TT |
3988 | if (s == NULL || t == NULL) |
3989 | return s == t; | |
ca092b61 DE |
3990 | return strcmp (s, t) == 0; |
3991 | } | |
3992 | ||
3993 | /* A helper function for check_types_worklist that checks two types for | |
894882e3 TT |
3994 | "deep" equality. Returns true if the types are considered the |
3995 | same, false otherwise. */ | |
ca092b61 | 3996 | |
894882e3 | 3997 | static bool |
ca092b61 | 3998 | check_types_equal (struct type *type1, struct type *type2, |
894882e3 | 3999 | std::vector<type_equality_entry> *worklist) |
ca092b61 | 4000 | { |
f168693b SM |
4001 | type1 = check_typedef (type1); |
4002 | type2 = check_typedef (type2); | |
ca092b61 DE |
4003 | |
4004 | if (type1 == type2) | |
894882e3 | 4005 | return true; |
ca092b61 | 4006 | |
78134374 | 4007 | if (type1->code () != type2->code () |
ca092b61 | 4008 | || TYPE_LENGTH (type1) != TYPE_LENGTH (type2) |
c6d940a9 | 4009 | || type1->is_unsigned () != type2->is_unsigned () |
20ce4123 | 4010 | || type1->has_no_signedness () != type2->has_no_signedness () |
04f5bab2 | 4011 | || type1->endianity_is_not_default () != type2->endianity_is_not_default () |
a409645d | 4012 | || type1->has_varargs () != type2->has_varargs () |
bd63c870 | 4013 | || type1->is_vector () != type2->is_vector () |
ca092b61 | 4014 | || TYPE_NOTTEXT (type1) != TYPE_NOTTEXT (type2) |
10242f36 | 4015 | || type1->instance_flags () != type2->instance_flags () |
1f704f76 | 4016 | || type1->num_fields () != type2->num_fields ()) |
894882e3 | 4017 | return false; |
ca092b61 | 4018 | |
7d93a1e0 | 4019 | if (!compare_maybe_null_strings (type1->name (), type2->name ())) |
894882e3 | 4020 | return false; |
7d93a1e0 | 4021 | if (!compare_maybe_null_strings (type1->name (), type2->name ())) |
894882e3 | 4022 | return false; |
ca092b61 | 4023 | |
78134374 | 4024 | if (type1->code () == TYPE_CODE_RANGE) |
ca092b61 | 4025 | { |
599088e3 | 4026 | if (*type1->bounds () != *type2->bounds ()) |
894882e3 | 4027 | return false; |
ca092b61 DE |
4028 | } |
4029 | else | |
4030 | { | |
4031 | int i; | |
4032 | ||
1f704f76 | 4033 | for (i = 0; i < type1->num_fields (); ++i) |
ca092b61 | 4034 | { |
ceacbf6e SM |
4035 | const struct field *field1 = &type1->field (i); |
4036 | const struct field *field2 = &type2->field (i); | |
ca092b61 DE |
4037 | |
4038 | if (FIELD_ARTIFICIAL (*field1) != FIELD_ARTIFICIAL (*field2) | |
4039 | || FIELD_BITSIZE (*field1) != FIELD_BITSIZE (*field2) | |
4040 | || FIELD_LOC_KIND (*field1) != FIELD_LOC_KIND (*field2)) | |
894882e3 | 4041 | return false; |
ca092b61 DE |
4042 | if (!compare_maybe_null_strings (FIELD_NAME (*field1), |
4043 | FIELD_NAME (*field2))) | |
894882e3 | 4044 | return false; |
ca092b61 DE |
4045 | switch (FIELD_LOC_KIND (*field1)) |
4046 | { | |
4047 | case FIELD_LOC_KIND_BITPOS: | |
4048 | if (FIELD_BITPOS (*field1) != FIELD_BITPOS (*field2)) | |
894882e3 | 4049 | return false; |
ca092b61 DE |
4050 | break; |
4051 | case FIELD_LOC_KIND_ENUMVAL: | |
4052 | if (FIELD_ENUMVAL (*field1) != FIELD_ENUMVAL (*field2)) | |
894882e3 | 4053 | return false; |
ca092b61 DE |
4054 | break; |
4055 | case FIELD_LOC_KIND_PHYSADDR: | |
4056 | if (FIELD_STATIC_PHYSADDR (*field1) | |
4057 | != FIELD_STATIC_PHYSADDR (*field2)) | |
894882e3 | 4058 | return false; |
ca092b61 DE |
4059 | break; |
4060 | case FIELD_LOC_KIND_PHYSNAME: | |
4061 | if (!compare_maybe_null_strings (FIELD_STATIC_PHYSNAME (*field1), | |
4062 | FIELD_STATIC_PHYSNAME (*field2))) | |
894882e3 | 4063 | return false; |
ca092b61 DE |
4064 | break; |
4065 | case FIELD_LOC_KIND_DWARF_BLOCK: | |
4066 | { | |
4067 | struct dwarf2_locexpr_baton *block1, *block2; | |
4068 | ||
4069 | block1 = FIELD_DWARF_BLOCK (*field1); | |
4070 | block2 = FIELD_DWARF_BLOCK (*field2); | |
4071 | if (block1->per_cu != block2->per_cu | |
4072 | || block1->size != block2->size | |
4073 | || memcmp (block1->data, block2->data, block1->size) != 0) | |
894882e3 | 4074 | return false; |
ca092b61 DE |
4075 | } |
4076 | break; | |
4077 | default: | |
4078 | internal_error (__FILE__, __LINE__, _("Unsupported field kind " | |
4079 | "%d by check_types_equal"), | |
4080 | FIELD_LOC_KIND (*field1)); | |
4081 | } | |
4082 | ||
b6cdac4b | 4083 | worklist->emplace_back (field1->type (), field2->type ()); |
ca092b61 DE |
4084 | } |
4085 | } | |
4086 | ||
4087 | if (TYPE_TARGET_TYPE (type1) != NULL) | |
4088 | { | |
ca092b61 | 4089 | if (TYPE_TARGET_TYPE (type2) == NULL) |
894882e3 | 4090 | return false; |
ca092b61 | 4091 | |
894882e3 TT |
4092 | worklist->emplace_back (TYPE_TARGET_TYPE (type1), |
4093 | TYPE_TARGET_TYPE (type2)); | |
ca092b61 DE |
4094 | } |
4095 | else if (TYPE_TARGET_TYPE (type2) != NULL) | |
894882e3 | 4096 | return false; |
ca092b61 | 4097 | |
894882e3 | 4098 | return true; |
ca092b61 DE |
4099 | } |
4100 | ||
894882e3 TT |
4101 | /* Check types on a worklist for equality. Returns false if any pair |
4102 | is not equal, true if they are all considered equal. */ | |
ca092b61 | 4103 | |
894882e3 TT |
4104 | static bool |
4105 | check_types_worklist (std::vector<type_equality_entry> *worklist, | |
dfb65191 | 4106 | gdb::bcache *cache) |
ca092b61 | 4107 | { |
894882e3 | 4108 | while (!worklist->empty ()) |
ca092b61 | 4109 | { |
ef5e5b0b | 4110 | bool added; |
ca092b61 | 4111 | |
894882e3 TT |
4112 | struct type_equality_entry entry = std::move (worklist->back ()); |
4113 | worklist->pop_back (); | |
ca092b61 DE |
4114 | |
4115 | /* If the type pair has already been visited, we know it is | |
4116 | ok. */ | |
25629dfd | 4117 | cache->insert (&entry, sizeof (entry), &added); |
ca092b61 DE |
4118 | if (!added) |
4119 | continue; | |
4120 | ||
894882e3 TT |
4121 | if (!check_types_equal (entry.type1, entry.type2, worklist)) |
4122 | return false; | |
ca092b61 | 4123 | } |
7062b0a0 | 4124 | |
894882e3 | 4125 | return true; |
ca092b61 DE |
4126 | } |
4127 | ||
894882e3 TT |
4128 | /* Return true if types TYPE1 and TYPE2 are equal, as determined by a |
4129 | "deep comparison". Otherwise return false. */ | |
ca092b61 | 4130 | |
894882e3 | 4131 | bool |
ca092b61 DE |
4132 | types_deeply_equal (struct type *type1, struct type *type2) |
4133 | { | |
894882e3 | 4134 | std::vector<type_equality_entry> worklist; |
ca092b61 DE |
4135 | |
4136 | gdb_assert (type1 != NULL && type2 != NULL); | |
4137 | ||
4138 | /* Early exit for the simple case. */ | |
4139 | if (type1 == type2) | |
894882e3 | 4140 | return true; |
ca092b61 | 4141 | |
89806626 | 4142 | gdb::bcache cache; |
894882e3 | 4143 | worklist.emplace_back (type1, type2); |
25629dfd | 4144 | return check_types_worklist (&worklist, &cache); |
ca092b61 | 4145 | } |
3f2f83dd KB |
4146 | |
4147 | /* Allocated status of type TYPE. Return zero if type TYPE is allocated. | |
4148 | Otherwise return one. */ | |
4149 | ||
4150 | int | |
4151 | type_not_allocated (const struct type *type) | |
4152 | { | |
4153 | struct dynamic_prop *prop = TYPE_ALLOCATED_PROP (type); | |
4154 | ||
8a6d5e35 | 4155 | return (prop != nullptr && prop->kind () == PROP_CONST |
5555c86d | 4156 | && prop->const_val () == 0); |
3f2f83dd KB |
4157 | } |
4158 | ||
4159 | /* Associated status of type TYPE. Return zero if type TYPE is associated. | |
4160 | Otherwise return one. */ | |
4161 | ||
4162 | int | |
4163 | type_not_associated (const struct type *type) | |
4164 | { | |
4165 | struct dynamic_prop *prop = TYPE_ASSOCIATED_PROP (type); | |
4166 | ||
8a6d5e35 | 4167 | return (prop != nullptr && prop->kind () == PROP_CONST |
5555c86d | 4168 | && prop->const_val () == 0); |
3f2f83dd | 4169 | } |
9293fc63 SM |
4170 | |
4171 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_PTR. */ | |
4172 | ||
4173 | static struct rank | |
4174 | rank_one_type_parm_ptr (struct type *parm, struct type *arg, struct value *value) | |
4175 | { | |
4176 | struct rank rank = {0,0}; | |
4177 | ||
78134374 | 4178 | switch (arg->code ()) |
9293fc63 SM |
4179 | { |
4180 | case TYPE_CODE_PTR: | |
4181 | ||
4182 | /* Allowed pointer conversions are: | |
4183 | (a) pointer to void-pointer conversion. */ | |
78134374 | 4184 | if (TYPE_TARGET_TYPE (parm)->code () == TYPE_CODE_VOID) |
9293fc63 SM |
4185 | return VOID_PTR_CONVERSION_BADNESS; |
4186 | ||
4187 | /* (b) pointer to ancestor-pointer conversion. */ | |
4188 | rank.subrank = distance_to_ancestor (TYPE_TARGET_TYPE (parm), | |
4189 | TYPE_TARGET_TYPE (arg), | |
4190 | 0); | |
4191 | if (rank.subrank >= 0) | |
4192 | return sum_ranks (BASE_PTR_CONVERSION_BADNESS, rank); | |
4193 | ||
4194 | return INCOMPATIBLE_TYPE_BADNESS; | |
4195 | case TYPE_CODE_ARRAY: | |
4196 | { | |
4197 | struct type *t1 = TYPE_TARGET_TYPE (parm); | |
4198 | struct type *t2 = TYPE_TARGET_TYPE (arg); | |
4199 | ||
4200 | if (types_equal (t1, t2)) | |
4201 | { | |
4202 | /* Make sure they are CV equal. */ | |
4203 | if (TYPE_CONST (t1) != TYPE_CONST (t2)) | |
4204 | rank.subrank |= CV_CONVERSION_CONST; | |
4205 | if (TYPE_VOLATILE (t1) != TYPE_VOLATILE (t2)) | |
4206 | rank.subrank |= CV_CONVERSION_VOLATILE; | |
4207 | if (rank.subrank != 0) | |
4208 | return sum_ranks (CV_CONVERSION_BADNESS, rank); | |
4209 | return EXACT_MATCH_BADNESS; | |
4210 | } | |
4211 | return INCOMPATIBLE_TYPE_BADNESS; | |
4212 | } | |
4213 | case TYPE_CODE_FUNC: | |
4214 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL); | |
4215 | case TYPE_CODE_INT: | |
78134374 | 4216 | if (value != NULL && value_type (value)->code () == TYPE_CODE_INT) |
9293fc63 SM |
4217 | { |
4218 | if (value_as_long (value) == 0) | |
4219 | { | |
4220 | /* Null pointer conversion: allow it to be cast to a pointer. | |
4221 | [4.10.1 of C++ standard draft n3290] */ | |
4222 | return NULL_POINTER_CONVERSION_BADNESS; | |
4223 | } | |
4224 | else | |
4225 | { | |
4226 | /* If type checking is disabled, allow the conversion. */ | |
4227 | if (!strict_type_checking) | |
4228 | return NS_INTEGER_POINTER_CONVERSION_BADNESS; | |
4229 | } | |
4230 | } | |
4231 | /* fall through */ | |
4232 | case TYPE_CODE_ENUM: | |
4233 | case TYPE_CODE_FLAGS: | |
4234 | case TYPE_CODE_CHAR: | |
4235 | case TYPE_CODE_RANGE: | |
4236 | case TYPE_CODE_BOOL: | |
4237 | default: | |
4238 | return INCOMPATIBLE_TYPE_BADNESS; | |
4239 | } | |
4240 | } | |
4241 | ||
b9f4512f SM |
4242 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_ARRAY. */ |
4243 | ||
4244 | static struct rank | |
4245 | rank_one_type_parm_array (struct type *parm, struct type *arg, struct value *value) | |
4246 | { | |
78134374 | 4247 | switch (arg->code ()) |
b9f4512f SM |
4248 | { |
4249 | case TYPE_CODE_PTR: | |
4250 | case TYPE_CODE_ARRAY: | |
4251 | return rank_one_type (TYPE_TARGET_TYPE (parm), | |
4252 | TYPE_TARGET_TYPE (arg), NULL); | |
4253 | default: | |
4254 | return INCOMPATIBLE_TYPE_BADNESS; | |
4255 | } | |
4256 | } | |
4257 | ||
f1f832d6 SM |
4258 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_FUNC. */ |
4259 | ||
4260 | static struct rank | |
4261 | rank_one_type_parm_func (struct type *parm, struct type *arg, struct value *value) | |
4262 | { | |
78134374 | 4263 | switch (arg->code ()) |
f1f832d6 SM |
4264 | { |
4265 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
4266 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL); | |
4267 | default: | |
4268 | return INCOMPATIBLE_TYPE_BADNESS; | |
4269 | } | |
4270 | } | |
4271 | ||
34910087 SM |
4272 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_INT. */ |
4273 | ||
4274 | static struct rank | |
4275 | rank_one_type_parm_int (struct type *parm, struct type *arg, struct value *value) | |
4276 | { | |
78134374 | 4277 | switch (arg->code ()) |
34910087 SM |
4278 | { |
4279 | case TYPE_CODE_INT: | |
4280 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
4281 | { | |
4282 | /* Deal with signed, unsigned, and plain chars and | |
4283 | signed and unsigned ints. */ | |
20ce4123 | 4284 | if (parm->has_no_signedness ()) |
34910087 SM |
4285 | { |
4286 | /* This case only for character types. */ | |
20ce4123 | 4287 | if (arg->has_no_signedness ()) |
34910087 SM |
4288 | return EXACT_MATCH_BADNESS; /* plain char -> plain char */ |
4289 | else /* signed/unsigned char -> plain char */ | |
4290 | return INTEGER_CONVERSION_BADNESS; | |
4291 | } | |
c6d940a9 | 4292 | else if (parm->is_unsigned ()) |
34910087 | 4293 | { |
c6d940a9 | 4294 | if (arg->is_unsigned ()) |
34910087 SM |
4295 | { |
4296 | /* unsigned int -> unsigned int, or | |
4297 | unsigned long -> unsigned long */ | |
7d93a1e0 SM |
4298 | if (integer_types_same_name_p (parm->name (), |
4299 | arg->name ())) | |
34910087 | 4300 | return EXACT_MATCH_BADNESS; |
7d93a1e0 | 4301 | else if (integer_types_same_name_p (arg->name (), |
34910087 | 4302 | "int") |
7d93a1e0 | 4303 | && integer_types_same_name_p (parm->name (), |
34910087 SM |
4304 | "long")) |
4305 | /* unsigned int -> unsigned long */ | |
4306 | return INTEGER_PROMOTION_BADNESS; | |
4307 | else | |
4308 | /* unsigned long -> unsigned int */ | |
4309 | return INTEGER_CONVERSION_BADNESS; | |
4310 | } | |
4311 | else | |
4312 | { | |
7d93a1e0 | 4313 | if (integer_types_same_name_p (arg->name (), |
34910087 | 4314 | "long") |
7d93a1e0 | 4315 | && integer_types_same_name_p (parm->name (), |
34910087 SM |
4316 | "int")) |
4317 | /* signed long -> unsigned int */ | |
4318 | return INTEGER_CONVERSION_BADNESS; | |
4319 | else | |
4320 | /* signed int/long -> unsigned int/long */ | |
4321 | return INTEGER_CONVERSION_BADNESS; | |
4322 | } | |
4323 | } | |
20ce4123 | 4324 | else if (!arg->has_no_signedness () && !arg->is_unsigned ()) |
34910087 | 4325 | { |
7d93a1e0 SM |
4326 | if (integer_types_same_name_p (parm->name (), |
4327 | arg->name ())) | |
34910087 | 4328 | return EXACT_MATCH_BADNESS; |
7d93a1e0 | 4329 | else if (integer_types_same_name_p (arg->name (), |
34910087 | 4330 | "int") |
7d93a1e0 | 4331 | && integer_types_same_name_p (parm->name (), |
34910087 SM |
4332 | "long")) |
4333 | return INTEGER_PROMOTION_BADNESS; | |
4334 | else | |
4335 | return INTEGER_CONVERSION_BADNESS; | |
4336 | } | |
4337 | else | |
4338 | return INTEGER_CONVERSION_BADNESS; | |
4339 | } | |
4340 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
4341 | return INTEGER_PROMOTION_BADNESS; | |
4342 | else | |
4343 | return INTEGER_CONVERSION_BADNESS; | |
4344 | case TYPE_CODE_ENUM: | |
4345 | case TYPE_CODE_FLAGS: | |
4346 | case TYPE_CODE_CHAR: | |
4347 | case TYPE_CODE_RANGE: | |
4348 | case TYPE_CODE_BOOL: | |
4349 | if (TYPE_DECLARED_CLASS (arg)) | |
4350 | return INCOMPATIBLE_TYPE_BADNESS; | |
4351 | return INTEGER_PROMOTION_BADNESS; | |
4352 | case TYPE_CODE_FLT: | |
4353 | return INT_FLOAT_CONVERSION_BADNESS; | |
4354 | case TYPE_CODE_PTR: | |
4355 | return NS_POINTER_CONVERSION_BADNESS; | |
4356 | default: | |
4357 | return INCOMPATIBLE_TYPE_BADNESS; | |
4358 | } | |
4359 | } | |
4360 | ||
793cd1d2 SM |
4361 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_ENUM. */ |
4362 | ||
4363 | static struct rank | |
4364 | rank_one_type_parm_enum (struct type *parm, struct type *arg, struct value *value) | |
4365 | { | |
78134374 | 4366 | switch (arg->code ()) |
793cd1d2 SM |
4367 | { |
4368 | case TYPE_CODE_INT: | |
4369 | case TYPE_CODE_CHAR: | |
4370 | case TYPE_CODE_RANGE: | |
4371 | case TYPE_CODE_BOOL: | |
4372 | case TYPE_CODE_ENUM: | |
4373 | if (TYPE_DECLARED_CLASS (parm) || TYPE_DECLARED_CLASS (arg)) | |
4374 | return INCOMPATIBLE_TYPE_BADNESS; | |
4375 | return INTEGER_CONVERSION_BADNESS; | |
4376 | case TYPE_CODE_FLT: | |
4377 | return INT_FLOAT_CONVERSION_BADNESS; | |
4378 | default: | |
4379 | return INCOMPATIBLE_TYPE_BADNESS; | |
4380 | } | |
4381 | } | |
4382 | ||
41ea4728 SM |
4383 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_CHAR. */ |
4384 | ||
4385 | static struct rank | |
4386 | rank_one_type_parm_char (struct type *parm, struct type *arg, struct value *value) | |
4387 | { | |
78134374 | 4388 | switch (arg->code ()) |
41ea4728 SM |
4389 | { |
4390 | case TYPE_CODE_RANGE: | |
4391 | case TYPE_CODE_BOOL: | |
4392 | case TYPE_CODE_ENUM: | |
4393 | if (TYPE_DECLARED_CLASS (arg)) | |
4394 | return INCOMPATIBLE_TYPE_BADNESS; | |
4395 | return INTEGER_CONVERSION_BADNESS; | |
4396 | case TYPE_CODE_FLT: | |
4397 | return INT_FLOAT_CONVERSION_BADNESS; | |
4398 | case TYPE_CODE_INT: | |
4399 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
4400 | return INTEGER_CONVERSION_BADNESS; | |
4401 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
4402 | return INTEGER_PROMOTION_BADNESS; | |
4403 | /* fall through */ | |
4404 | case TYPE_CODE_CHAR: | |
4405 | /* Deal with signed, unsigned, and plain chars for C++ and | |
4406 | with int cases falling through from previous case. */ | |
20ce4123 | 4407 | if (parm->has_no_signedness ()) |
41ea4728 | 4408 | { |
20ce4123 | 4409 | if (arg->has_no_signedness ()) |
41ea4728 SM |
4410 | return EXACT_MATCH_BADNESS; |
4411 | else | |
4412 | return INTEGER_CONVERSION_BADNESS; | |
4413 | } | |
c6d940a9 | 4414 | else if (parm->is_unsigned ()) |
41ea4728 | 4415 | { |
c6d940a9 | 4416 | if (arg->is_unsigned ()) |
41ea4728 SM |
4417 | return EXACT_MATCH_BADNESS; |
4418 | else | |
4419 | return INTEGER_PROMOTION_BADNESS; | |
4420 | } | |
20ce4123 | 4421 | else if (!arg->has_no_signedness () && !arg->is_unsigned ()) |
41ea4728 SM |
4422 | return EXACT_MATCH_BADNESS; |
4423 | else | |
4424 | return INTEGER_CONVERSION_BADNESS; | |
4425 | default: | |
4426 | return INCOMPATIBLE_TYPE_BADNESS; | |
4427 | } | |
4428 | } | |
4429 | ||
0dd322dc SM |
4430 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_RANGE. */ |
4431 | ||
4432 | static struct rank | |
4433 | rank_one_type_parm_range (struct type *parm, struct type *arg, struct value *value) | |
4434 | { | |
78134374 | 4435 | switch (arg->code ()) |
0dd322dc SM |
4436 | { |
4437 | case TYPE_CODE_INT: | |
4438 | case TYPE_CODE_CHAR: | |
4439 | case TYPE_CODE_RANGE: | |
4440 | case TYPE_CODE_BOOL: | |
4441 | case TYPE_CODE_ENUM: | |
4442 | return INTEGER_CONVERSION_BADNESS; | |
4443 | case TYPE_CODE_FLT: | |
4444 | return INT_FLOAT_CONVERSION_BADNESS; | |
4445 | default: | |
4446 | return INCOMPATIBLE_TYPE_BADNESS; | |
4447 | } | |
4448 | } | |
4449 | ||
2c509035 SM |
4450 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_BOOL. */ |
4451 | ||
4452 | static struct rank | |
4453 | rank_one_type_parm_bool (struct type *parm, struct type *arg, struct value *value) | |
4454 | { | |
78134374 | 4455 | switch (arg->code ()) |
2c509035 SM |
4456 | { |
4457 | /* n3290 draft, section 4.12.1 (conv.bool): | |
4458 | ||
4459 | "A prvalue of arithmetic, unscoped enumeration, pointer, or | |
4460 | pointer to member type can be converted to a prvalue of type | |
4461 | bool. A zero value, null pointer value, or null member pointer | |
4462 | value is converted to false; any other value is converted to | |
4463 | true. A prvalue of type std::nullptr_t can be converted to a | |
4464 | prvalue of type bool; the resulting value is false." */ | |
4465 | case TYPE_CODE_INT: | |
4466 | case TYPE_CODE_CHAR: | |
4467 | case TYPE_CODE_ENUM: | |
4468 | case TYPE_CODE_FLT: | |
4469 | case TYPE_CODE_MEMBERPTR: | |
4470 | case TYPE_CODE_PTR: | |
4471 | return BOOL_CONVERSION_BADNESS; | |
4472 | case TYPE_CODE_RANGE: | |
4473 | return INCOMPATIBLE_TYPE_BADNESS; | |
4474 | case TYPE_CODE_BOOL: | |
4475 | return EXACT_MATCH_BADNESS; | |
4476 | default: | |
4477 | return INCOMPATIBLE_TYPE_BADNESS; | |
4478 | } | |
4479 | } | |
4480 | ||
7f17b20d SM |
4481 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_FLOAT. */ |
4482 | ||
4483 | static struct rank | |
4484 | rank_one_type_parm_float (struct type *parm, struct type *arg, struct value *value) | |
4485 | { | |
78134374 | 4486 | switch (arg->code ()) |
7f17b20d SM |
4487 | { |
4488 | case TYPE_CODE_FLT: | |
4489 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
4490 | return FLOAT_PROMOTION_BADNESS; | |
4491 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
4492 | return EXACT_MATCH_BADNESS; | |
4493 | else | |
4494 | return FLOAT_CONVERSION_BADNESS; | |
4495 | case TYPE_CODE_INT: | |
4496 | case TYPE_CODE_BOOL: | |
4497 | case TYPE_CODE_ENUM: | |
4498 | case TYPE_CODE_RANGE: | |
4499 | case TYPE_CODE_CHAR: | |
4500 | return INT_FLOAT_CONVERSION_BADNESS; | |
4501 | default: | |
4502 | return INCOMPATIBLE_TYPE_BADNESS; | |
4503 | } | |
4504 | } | |
4505 | ||
2598a94b SM |
4506 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_COMPLEX. */ |
4507 | ||
4508 | static struct rank | |
4509 | rank_one_type_parm_complex (struct type *parm, struct type *arg, struct value *value) | |
4510 | { | |
78134374 | 4511 | switch (arg->code ()) |
2598a94b SM |
4512 | { /* Strictly not needed for C++, but... */ |
4513 | case TYPE_CODE_FLT: | |
4514 | return FLOAT_PROMOTION_BADNESS; | |
4515 | case TYPE_CODE_COMPLEX: | |
4516 | return EXACT_MATCH_BADNESS; | |
4517 | default: | |
4518 | return INCOMPATIBLE_TYPE_BADNESS; | |
4519 | } | |
4520 | } | |
4521 | ||
595f96a9 SM |
4522 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_STRUCT. */ |
4523 | ||
4524 | static struct rank | |
4525 | rank_one_type_parm_struct (struct type *parm, struct type *arg, struct value *value) | |
4526 | { | |
4527 | struct rank rank = {0, 0}; | |
4528 | ||
78134374 | 4529 | switch (arg->code ()) |
595f96a9 SM |
4530 | { |
4531 | case TYPE_CODE_STRUCT: | |
4532 | /* Check for derivation */ | |
4533 | rank.subrank = distance_to_ancestor (parm, arg, 0); | |
4534 | if (rank.subrank >= 0) | |
4535 | return sum_ranks (BASE_CONVERSION_BADNESS, rank); | |
4536 | /* fall through */ | |
4537 | default: | |
4538 | return INCOMPATIBLE_TYPE_BADNESS; | |
4539 | } | |
4540 | } | |
4541 | ||
f09ce22d SM |
4542 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_SET. */ |
4543 | ||
4544 | static struct rank | |
4545 | rank_one_type_parm_set (struct type *parm, struct type *arg, struct value *value) | |
4546 | { | |
78134374 | 4547 | switch (arg->code ()) |
f09ce22d SM |
4548 | { |
4549 | /* Not in C++ */ | |
4550 | case TYPE_CODE_SET: | |
940da03e SM |
4551 | return rank_one_type (parm->field (0).type (), |
4552 | arg->field (0).type (), NULL); | |
f09ce22d SM |
4553 | default: |
4554 | return INCOMPATIBLE_TYPE_BADNESS; | |
4555 | } | |
4556 | } | |
4557 | ||
c906108c SS |
4558 | /* Compare one type (PARM) for compatibility with another (ARG). |
4559 | * PARM is intended to be the parameter type of a function; and | |
4560 | * ARG is the supplied argument's type. This function tests if | |
4561 | * the latter can be converted to the former. | |
da096638 | 4562 | * VALUE is the argument's value or NULL if none (or called recursively) |
c906108c SS |
4563 | * |
4564 | * Return 0 if they are identical types; | |
4565 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 MS |
4566 | * PARM is to ARG. The higher the return value, the worse the match. |
4567 | * Generally the "bad" conversions are all uniformly assigned a 100. */ | |
c906108c | 4568 | |
6403aeea | 4569 | struct rank |
da096638 | 4570 | rank_one_type (struct type *parm, struct type *arg, struct value *value) |
c906108c | 4571 | { |
a9d5ef47 | 4572 | struct rank rank = {0,0}; |
7062b0a0 | 4573 | |
c906108c | 4574 | /* Resolve typedefs */ |
78134374 | 4575 | if (parm->code () == TYPE_CODE_TYPEDEF) |
c906108c | 4576 | parm = check_typedef (parm); |
78134374 | 4577 | if (arg->code () == TYPE_CODE_TYPEDEF) |
c906108c SS |
4578 | arg = check_typedef (arg); |
4579 | ||
e15c3eb4 | 4580 | if (TYPE_IS_REFERENCE (parm) && value != NULL) |
15c0a2a9 | 4581 | { |
e15c3eb4 KS |
4582 | if (VALUE_LVAL (value) == not_lval) |
4583 | { | |
4584 | /* Rvalues should preferably bind to rvalue references or const | |
4585 | lvalue references. */ | |
78134374 | 4586 | if (parm->code () == TYPE_CODE_RVALUE_REF) |
e15c3eb4 KS |
4587 | rank.subrank = REFERENCE_CONVERSION_RVALUE; |
4588 | else if (TYPE_CONST (TYPE_TARGET_TYPE (parm))) | |
4589 | rank.subrank = REFERENCE_CONVERSION_CONST_LVALUE; | |
4590 | else | |
4591 | return INCOMPATIBLE_TYPE_BADNESS; | |
4592 | return sum_ranks (rank, REFERENCE_CONVERSION_BADNESS); | |
4593 | } | |
4594 | else | |
4595 | { | |
330f1d38 | 4596 | /* It's illegal to pass an lvalue as an rvalue. */ |
78134374 | 4597 | if (parm->code () == TYPE_CODE_RVALUE_REF) |
330f1d38 | 4598 | return INCOMPATIBLE_TYPE_BADNESS; |
e15c3eb4 | 4599 | } |
15c0a2a9 AV |
4600 | } |
4601 | ||
4602 | if (types_equal (parm, arg)) | |
15c0a2a9 | 4603 | { |
e15c3eb4 KS |
4604 | struct type *t1 = parm; |
4605 | struct type *t2 = arg; | |
15c0a2a9 | 4606 | |
e15c3eb4 | 4607 | /* For pointers and references, compare target type. */ |
78134374 | 4608 | if (parm->code () == TYPE_CODE_PTR || TYPE_IS_REFERENCE (parm)) |
e15c3eb4 KS |
4609 | { |
4610 | t1 = TYPE_TARGET_TYPE (parm); | |
4611 | t2 = TYPE_TARGET_TYPE (arg); | |
4612 | } | |
15c0a2a9 | 4613 | |
e15c3eb4 KS |
4614 | /* Make sure they are CV equal, too. */ |
4615 | if (TYPE_CONST (t1) != TYPE_CONST (t2)) | |
4616 | rank.subrank |= CV_CONVERSION_CONST; | |
4617 | if (TYPE_VOLATILE (t1) != TYPE_VOLATILE (t2)) | |
4618 | rank.subrank |= CV_CONVERSION_VOLATILE; | |
4619 | if (rank.subrank != 0) | |
4620 | return sum_ranks (CV_CONVERSION_BADNESS, rank); | |
4621 | return EXACT_MATCH_BADNESS; | |
15c0a2a9 AV |
4622 | } |
4623 | ||
db577aea | 4624 | /* See through references, since we can almost make non-references |
7ba81444 | 4625 | references. */ |
aa006118 AV |
4626 | |
4627 | if (TYPE_IS_REFERENCE (arg)) | |
da096638 | 4628 | return (sum_ranks (rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL), |
06acc08f | 4629 | REFERENCE_SEE_THROUGH_BADNESS)); |
aa006118 | 4630 | if (TYPE_IS_REFERENCE (parm)) |
da096638 | 4631 | return (sum_ranks (rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL), |
06acc08f | 4632 | REFERENCE_SEE_THROUGH_BADNESS)); |
5d161b24 | 4633 | if (overload_debug) |
7ba81444 | 4634 | /* Debugging only. */ |
78134374 | 4635 | fprintf_filtered (gdb_stderr, |
7ba81444 | 4636 | "------ Arg is %s [%d], parm is %s [%d]\n", |
7d93a1e0 SM |
4637 | arg->name (), arg->code (), |
4638 | parm->name (), parm->code ()); | |
c906108c | 4639 | |
0963b4bd | 4640 | /* x -> y means arg of type x being supplied for parameter of type y. */ |
c906108c | 4641 | |
78134374 | 4642 | switch (parm->code ()) |
c906108c | 4643 | { |
c5aa993b | 4644 | case TYPE_CODE_PTR: |
9293fc63 | 4645 | return rank_one_type_parm_ptr (parm, arg, value); |
c5aa993b | 4646 | case TYPE_CODE_ARRAY: |
b9f4512f | 4647 | return rank_one_type_parm_array (parm, arg, value); |
c5aa993b | 4648 | case TYPE_CODE_FUNC: |
f1f832d6 | 4649 | return rank_one_type_parm_func (parm, arg, value); |
c5aa993b | 4650 | case TYPE_CODE_INT: |
34910087 | 4651 | return rank_one_type_parm_int (parm, arg, value); |
c5aa993b | 4652 | case TYPE_CODE_ENUM: |
793cd1d2 | 4653 | return rank_one_type_parm_enum (parm, arg, value); |
c5aa993b | 4654 | case TYPE_CODE_CHAR: |
41ea4728 | 4655 | return rank_one_type_parm_char (parm, arg, value); |
c5aa993b | 4656 | case TYPE_CODE_RANGE: |
0dd322dc | 4657 | return rank_one_type_parm_range (parm, arg, value); |
c5aa993b | 4658 | case TYPE_CODE_BOOL: |
2c509035 | 4659 | return rank_one_type_parm_bool (parm, arg, value); |
c5aa993b | 4660 | case TYPE_CODE_FLT: |
7f17b20d | 4661 | return rank_one_type_parm_float (parm, arg, value); |
c5aa993b | 4662 | case TYPE_CODE_COMPLEX: |
2598a94b | 4663 | return rank_one_type_parm_complex (parm, arg, value); |
c5aa993b | 4664 | case TYPE_CODE_STRUCT: |
595f96a9 | 4665 | return rank_one_type_parm_struct (parm, arg, value); |
c5aa993b | 4666 | case TYPE_CODE_SET: |
f09ce22d | 4667 | return rank_one_type_parm_set (parm, arg, value); |
c5aa993b JM |
4668 | default: |
4669 | return INCOMPATIBLE_TYPE_BADNESS; | |
78134374 | 4670 | } /* switch (arg->code ()) */ |
c906108c SS |
4671 | } |
4672 | ||
0963b4bd | 4673 | /* End of functions for overload resolution. */ |
5212577a DE |
4674 | \f |
4675 | /* Routines to pretty-print types. */ | |
c906108c | 4676 | |
c906108c | 4677 | static void |
fba45db2 | 4678 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
4679 | { |
4680 | int bitno; | |
4681 | ||
4682 | for (bitno = 0; bitno < nbits; bitno++) | |
4683 | { | |
4684 | if ((bitno % 8) == 0) | |
4685 | { | |
4686 | puts_filtered (" "); | |
4687 | } | |
4688 | if (B_TST (bits, bitno)) | |
a3f17187 | 4689 | printf_filtered (("1")); |
c906108c | 4690 | else |
a3f17187 | 4691 | printf_filtered (("0")); |
c906108c SS |
4692 | } |
4693 | } | |
4694 | ||
ad2f7632 | 4695 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
4696 | include it since we may get into a infinitely recursive |
4697 | situation. */ | |
c906108c SS |
4698 | |
4699 | static void | |
4c9e8482 | 4700 | print_args (struct field *args, int nargs, int spaces) |
c906108c SS |
4701 | { |
4702 | if (args != NULL) | |
4703 | { | |
ad2f7632 DJ |
4704 | int i; |
4705 | ||
4706 | for (i = 0; i < nargs; i++) | |
4c9e8482 DE |
4707 | { |
4708 | printfi_filtered (spaces, "[%d] name '%s'\n", i, | |
4709 | args[i].name != NULL ? args[i].name : "<NULL>"); | |
5d14b6e5 | 4710 | recursive_dump_type (args[i].type (), spaces + 2); |
4c9e8482 | 4711 | } |
c906108c SS |
4712 | } |
4713 | } | |
4714 | ||
d6a843b5 JK |
4715 | int |
4716 | field_is_static (struct field *f) | |
4717 | { | |
4718 | /* "static" fields are the fields whose location is not relative | |
4719 | to the address of the enclosing struct. It would be nice to | |
4720 | have a dedicated flag that would be set for static fields when | |
4721 | the type is being created. But in practice, checking the field | |
254e6b9e | 4722 | loc_kind should give us an accurate answer. */ |
d6a843b5 JK |
4723 | return (FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSNAME |
4724 | || FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSADDR); | |
4725 | } | |
4726 | ||
c906108c | 4727 | static void |
fba45db2 | 4728 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
4729 | { |
4730 | int method_idx; | |
4731 | int overload_idx; | |
4732 | struct fn_field *f; | |
4733 | ||
4734 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 4735 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
4736 | printf_filtered ("\n"); |
4737 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
4738 | { | |
4739 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
4740 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
4741 | method_idx, | |
4742 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
4743 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
4744 | gdb_stdout); | |
a3f17187 | 4745 | printf_filtered (_(") length %d\n"), |
c906108c SS |
4746 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
4747 | for (overload_idx = 0; | |
4748 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
4749 | overload_idx++) | |
4750 | { | |
4751 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
4752 | overload_idx, | |
4753 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
4754 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
4755 | gdb_stdout); | |
c906108c SS |
4756 | printf_filtered (")\n"); |
4757 | printfi_filtered (spaces + 8, "type "); | |
7ba81444 MS |
4758 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
4759 | gdb_stdout); | |
c906108c SS |
4760 | printf_filtered ("\n"); |
4761 | ||
4762 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
4763 | spaces + 8 + 2); | |
4764 | ||
4765 | printfi_filtered (spaces + 8, "args "); | |
7ba81444 MS |
4766 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
4767 | gdb_stdout); | |
c906108c | 4768 | printf_filtered ("\n"); |
4c9e8482 | 4769 | print_args (TYPE_FN_FIELD_ARGS (f, overload_idx), |
1f704f76 | 4770 | TYPE_FN_FIELD_TYPE (f, overload_idx)->num_fields (), |
4c9e8482 | 4771 | spaces + 8 + 2); |
c906108c | 4772 | printfi_filtered (spaces + 8, "fcontext "); |
d4f3574e SS |
4773 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
4774 | gdb_stdout); | |
c906108c SS |
4775 | printf_filtered ("\n"); |
4776 | ||
4777 | printfi_filtered (spaces + 8, "is_const %d\n", | |
4778 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
4779 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
4780 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
4781 | printfi_filtered (spaces + 8, "is_private %d\n", | |
4782 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
4783 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
4784 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
4785 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
4786 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
e35000a7 TBA |
4787 | printfi_filtered (spaces + 8, "defaulted %d\n", |
4788 | TYPE_FN_FIELD_DEFAULTED (f, overload_idx)); | |
4789 | printfi_filtered (spaces + 8, "is_deleted %d\n", | |
4790 | TYPE_FN_FIELD_DELETED (f, overload_idx)); | |
c906108c SS |
4791 | printfi_filtered (spaces + 8, "voffset %u\n", |
4792 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
4793 | } | |
4794 | } | |
4795 | } | |
4796 | ||
4797 | static void | |
fba45db2 | 4798 | print_cplus_stuff (struct type *type, int spaces) |
c906108c | 4799 | { |
ae6ae975 DE |
4800 | printfi_filtered (spaces, "vptr_fieldno %d\n", TYPE_VPTR_FIELDNO (type)); |
4801 | printfi_filtered (spaces, "vptr_basetype "); | |
4802 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); | |
4803 | puts_filtered ("\n"); | |
4804 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
4805 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
4806 | ||
c906108c SS |
4807 | printfi_filtered (spaces, "n_baseclasses %d\n", |
4808 | TYPE_N_BASECLASSES (type)); | |
4809 | printfi_filtered (spaces, "nfn_fields %d\n", | |
4810 | TYPE_NFN_FIELDS (type)); | |
c906108c SS |
4811 | if (TYPE_N_BASECLASSES (type) > 0) |
4812 | { | |
4813 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
4814 | TYPE_N_BASECLASSES (type)); | |
7ba81444 MS |
4815 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
4816 | gdb_stdout); | |
c906108c SS |
4817 | printf_filtered (")"); |
4818 | ||
4819 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
4820 | TYPE_N_BASECLASSES (type)); | |
4821 | puts_filtered ("\n"); | |
4822 | } | |
1f704f76 | 4823 | if (type->num_fields () > 0) |
c906108c SS |
4824 | { |
4825 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
4826 | { | |
7ba81444 MS |
4827 | printfi_filtered (spaces, |
4828 | "private_field_bits (%d bits at *", | |
1f704f76 | 4829 | type->num_fields ()); |
7ba81444 MS |
4830 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
4831 | gdb_stdout); | |
c906108c SS |
4832 | printf_filtered (")"); |
4833 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
1f704f76 | 4834 | type->num_fields ()); |
c906108c SS |
4835 | puts_filtered ("\n"); |
4836 | } | |
4837 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
4838 | { | |
7ba81444 MS |
4839 | printfi_filtered (spaces, |
4840 | "protected_field_bits (%d bits at *", | |
1f704f76 | 4841 | type->num_fields ()); |
7ba81444 MS |
4842 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
4843 | gdb_stdout); | |
c906108c SS |
4844 | printf_filtered (")"); |
4845 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
1f704f76 | 4846 | type->num_fields ()); |
c906108c SS |
4847 | puts_filtered ("\n"); |
4848 | } | |
4849 | } | |
4850 | if (TYPE_NFN_FIELDS (type) > 0) | |
4851 | { | |
4852 | dump_fn_fieldlists (type, spaces); | |
4853 | } | |
e35000a7 TBA |
4854 | |
4855 | printfi_filtered (spaces, "calling_convention %d\n", | |
4856 | TYPE_CPLUS_CALLING_CONVENTION (type)); | |
c906108c SS |
4857 | } |
4858 | ||
b4ba55a1 JB |
4859 | /* Print the contents of the TYPE's type_specific union, assuming that |
4860 | its type-specific kind is TYPE_SPECIFIC_GNAT_STUFF. */ | |
4861 | ||
4862 | static void | |
4863 | print_gnat_stuff (struct type *type, int spaces) | |
4864 | { | |
4865 | struct type *descriptive_type = TYPE_DESCRIPTIVE_TYPE (type); | |
4866 | ||
8cd00c59 PMR |
4867 | if (descriptive_type == NULL) |
4868 | printfi_filtered (spaces + 2, "no descriptive type\n"); | |
4869 | else | |
4870 | { | |
4871 | printfi_filtered (spaces + 2, "descriptive type\n"); | |
4872 | recursive_dump_type (descriptive_type, spaces + 4); | |
4873 | } | |
b4ba55a1 JB |
4874 | } |
4875 | ||
c906108c SS |
4876 | static struct obstack dont_print_type_obstack; |
4877 | ||
53d5a2a5 TV |
4878 | /* Print the dynamic_prop PROP. */ |
4879 | ||
4880 | static void | |
4881 | dump_dynamic_prop (dynamic_prop const& prop) | |
4882 | { | |
4883 | switch (prop.kind ()) | |
4884 | { | |
4885 | case PROP_CONST: | |
4886 | printf_filtered ("%s", plongest (prop.const_val ())); | |
4887 | break; | |
4888 | case PROP_UNDEFINED: | |
4889 | printf_filtered ("(undefined)"); | |
4890 | break; | |
4891 | case PROP_LOCEXPR: | |
4892 | case PROP_LOCLIST: | |
4893 | printf_filtered ("(dynamic)"); | |
4894 | break; | |
4895 | default: | |
4896 | gdb_assert_not_reached ("unhandled prop kind"); | |
4897 | break; | |
4898 | } | |
4899 | } | |
4900 | ||
c906108c | 4901 | void |
fba45db2 | 4902 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
4903 | { |
4904 | int idx; | |
4905 | ||
4906 | if (spaces == 0) | |
4907 | obstack_begin (&dont_print_type_obstack, 0); | |
4908 | ||
1f704f76 | 4909 | if (type->num_fields () > 0 |
b4ba55a1 | 4910 | || (HAVE_CPLUS_STRUCT (type) && TYPE_NFN_FIELDS (type) > 0)) |
c906108c SS |
4911 | { |
4912 | struct type **first_dont_print | |
7ba81444 | 4913 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 4914 | |
7ba81444 MS |
4915 | int i = (struct type **) |
4916 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
4917 | |
4918 | while (--i >= 0) | |
4919 | { | |
4920 | if (type == first_dont_print[i]) | |
4921 | { | |
4922 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 4923 | gdb_print_host_address (type, gdb_stdout); |
a3f17187 | 4924 | printf_filtered (_(" <same as already seen type>\n")); |
c906108c SS |
4925 | return; |
4926 | } | |
4927 | } | |
4928 | ||
4929 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
4930 | } | |
4931 | ||
4932 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 4933 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
4934 | printf_filtered ("\n"); |
4935 | printfi_filtered (spaces, "name '%s' (", | |
7d93a1e0 SM |
4936 | type->name () ? type->name () : "<NULL>"); |
4937 | gdb_print_host_address (type->name (), gdb_stdout); | |
c906108c | 4938 | printf_filtered (")\n"); |
78134374 SM |
4939 | printfi_filtered (spaces, "code 0x%x ", type->code ()); |
4940 | switch (type->code ()) | |
c906108c | 4941 | { |
c5aa993b JM |
4942 | case TYPE_CODE_UNDEF: |
4943 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
4944 | break; | |
4945 | case TYPE_CODE_PTR: | |
4946 | printf_filtered ("(TYPE_CODE_PTR)"); | |
4947 | break; | |
4948 | case TYPE_CODE_ARRAY: | |
4949 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
4950 | break; | |
4951 | case TYPE_CODE_STRUCT: | |
4952 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
4953 | break; | |
4954 | case TYPE_CODE_UNION: | |
4955 | printf_filtered ("(TYPE_CODE_UNION)"); | |
4956 | break; | |
4957 | case TYPE_CODE_ENUM: | |
4958 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
4959 | break; | |
4f2aea11 MK |
4960 | case TYPE_CODE_FLAGS: |
4961 | printf_filtered ("(TYPE_CODE_FLAGS)"); | |
4962 | break; | |
c5aa993b JM |
4963 | case TYPE_CODE_FUNC: |
4964 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
4965 | break; | |
4966 | case TYPE_CODE_INT: | |
4967 | printf_filtered ("(TYPE_CODE_INT)"); | |
4968 | break; | |
4969 | case TYPE_CODE_FLT: | |
4970 | printf_filtered ("(TYPE_CODE_FLT)"); | |
4971 | break; | |
4972 | case TYPE_CODE_VOID: | |
4973 | printf_filtered ("(TYPE_CODE_VOID)"); | |
4974 | break; | |
4975 | case TYPE_CODE_SET: | |
4976 | printf_filtered ("(TYPE_CODE_SET)"); | |
4977 | break; | |
4978 | case TYPE_CODE_RANGE: | |
4979 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
4980 | break; | |
4981 | case TYPE_CODE_STRING: | |
4982 | printf_filtered ("(TYPE_CODE_STRING)"); | |
4983 | break; | |
4984 | case TYPE_CODE_ERROR: | |
4985 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
4986 | break; | |
0d5de010 DJ |
4987 | case TYPE_CODE_MEMBERPTR: |
4988 | printf_filtered ("(TYPE_CODE_MEMBERPTR)"); | |
4989 | break; | |
4990 | case TYPE_CODE_METHODPTR: | |
4991 | printf_filtered ("(TYPE_CODE_METHODPTR)"); | |
c5aa993b JM |
4992 | break; |
4993 | case TYPE_CODE_METHOD: | |
4994 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
4995 | break; | |
4996 | case TYPE_CODE_REF: | |
4997 | printf_filtered ("(TYPE_CODE_REF)"); | |
4998 | break; | |
4999 | case TYPE_CODE_CHAR: | |
5000 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
5001 | break; | |
5002 | case TYPE_CODE_BOOL: | |
5003 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
5004 | break; | |
e9e79dd9 FF |
5005 | case TYPE_CODE_COMPLEX: |
5006 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
5007 | break; | |
c5aa993b JM |
5008 | case TYPE_CODE_TYPEDEF: |
5009 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
5010 | break; | |
5c4e30ca DC |
5011 | case TYPE_CODE_NAMESPACE: |
5012 | printf_filtered ("(TYPE_CODE_NAMESPACE)"); | |
5013 | break; | |
c5aa993b JM |
5014 | default: |
5015 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
5016 | break; | |
c906108c SS |
5017 | } |
5018 | puts_filtered ("\n"); | |
cc1defb1 | 5019 | printfi_filtered (spaces, "length %s\n", pulongest (TYPE_LENGTH (type))); |
e9bb382b UW |
5020 | if (TYPE_OBJFILE_OWNED (type)) |
5021 | { | |
5022 | printfi_filtered (spaces, "objfile "); | |
5023 | gdb_print_host_address (TYPE_OWNER (type).objfile, gdb_stdout); | |
5024 | } | |
5025 | else | |
5026 | { | |
5027 | printfi_filtered (spaces, "gdbarch "); | |
5028 | gdb_print_host_address (TYPE_OWNER (type).gdbarch, gdb_stdout); | |
5029 | } | |
c906108c SS |
5030 | printf_filtered ("\n"); |
5031 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 5032 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
5033 | printf_filtered ("\n"); |
5034 | if (TYPE_TARGET_TYPE (type) != NULL) | |
5035 | { | |
5036 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
5037 | } | |
5038 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 5039 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
5040 | printf_filtered ("\n"); |
5041 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 5042 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 5043 | printf_filtered ("\n"); |
2fdde8f8 DJ |
5044 | printfi_filtered (spaces, "type_chain "); |
5045 | gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); | |
e9e79dd9 | 5046 | printf_filtered ("\n"); |
7ba81444 | 5047 | printfi_filtered (spaces, "instance_flags 0x%x", |
314ad88d | 5048 | (unsigned) type->instance_flags ()); |
2fdde8f8 DJ |
5049 | if (TYPE_CONST (type)) |
5050 | { | |
a9ff5f12 | 5051 | puts_filtered (" TYPE_CONST"); |
2fdde8f8 DJ |
5052 | } |
5053 | if (TYPE_VOLATILE (type)) | |
5054 | { | |
a9ff5f12 | 5055 | puts_filtered (" TYPE_VOLATILE"); |
2fdde8f8 DJ |
5056 | } |
5057 | if (TYPE_CODE_SPACE (type)) | |
5058 | { | |
a9ff5f12 | 5059 | puts_filtered (" TYPE_CODE_SPACE"); |
2fdde8f8 DJ |
5060 | } |
5061 | if (TYPE_DATA_SPACE (type)) | |
5062 | { | |
a9ff5f12 | 5063 | puts_filtered (" TYPE_DATA_SPACE"); |
2fdde8f8 | 5064 | } |
8b2dbe47 KB |
5065 | if (TYPE_ADDRESS_CLASS_1 (type)) |
5066 | { | |
a9ff5f12 | 5067 | puts_filtered (" TYPE_ADDRESS_CLASS_1"); |
8b2dbe47 KB |
5068 | } |
5069 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
5070 | { | |
a9ff5f12 | 5071 | puts_filtered (" TYPE_ADDRESS_CLASS_2"); |
8b2dbe47 | 5072 | } |
06d66ee9 TT |
5073 | if (TYPE_RESTRICT (type)) |
5074 | { | |
a9ff5f12 | 5075 | puts_filtered (" TYPE_RESTRICT"); |
06d66ee9 | 5076 | } |
a2c2acaf MW |
5077 | if (TYPE_ATOMIC (type)) |
5078 | { | |
a9ff5f12 | 5079 | puts_filtered (" TYPE_ATOMIC"); |
a2c2acaf | 5080 | } |
2fdde8f8 | 5081 | puts_filtered ("\n"); |
876cecd0 TT |
5082 | |
5083 | printfi_filtered (spaces, "flags"); | |
c6d940a9 | 5084 | if (type->is_unsigned ()) |
c906108c | 5085 | { |
a9ff5f12 | 5086 | puts_filtered (" TYPE_UNSIGNED"); |
c906108c | 5087 | } |
20ce4123 | 5088 | if (type->has_no_signedness ()) |
762a036f | 5089 | { |
a9ff5f12 | 5090 | puts_filtered (" TYPE_NOSIGN"); |
762a036f | 5091 | } |
04f5bab2 | 5092 | if (type->endianity_is_not_default ()) |
34877895 PJ |
5093 | { |
5094 | puts_filtered (" TYPE_ENDIANITY_NOT_DEFAULT"); | |
5095 | } | |
e46d3488 | 5096 | if (type->is_stub ()) |
c906108c | 5097 | { |
a9ff5f12 | 5098 | puts_filtered (" TYPE_STUB"); |
c906108c | 5099 | } |
d2183968 | 5100 | if (type->target_is_stub ()) |
762a036f | 5101 | { |
a9ff5f12 | 5102 | puts_filtered (" TYPE_TARGET_STUB"); |
762a036f | 5103 | } |
7f9f399b | 5104 | if (type->is_prototyped ()) |
762a036f | 5105 | { |
a9ff5f12 | 5106 | puts_filtered (" TYPE_PROTOTYPED"); |
762a036f | 5107 | } |
a409645d | 5108 | if (type->has_varargs ()) |
762a036f | 5109 | { |
a9ff5f12 | 5110 | puts_filtered (" TYPE_VARARGS"); |
762a036f | 5111 | } |
f5f8a009 EZ |
5112 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
5113 | an attribute for the array type, which tells whether or not we | |
5114 | have a vector, instead of a regular array. */ | |
bd63c870 | 5115 | if (type->is_vector ()) |
f5f8a009 | 5116 | { |
a9ff5f12 | 5117 | puts_filtered (" TYPE_VECTOR"); |
f5f8a009 | 5118 | } |
22c4c60c | 5119 | if (type->is_fixed_instance ()) |
876cecd0 TT |
5120 | { |
5121 | puts_filtered (" TYPE_FIXED_INSTANCE"); | |
5122 | } | |
3f46044c | 5123 | if (type->stub_is_supported ()) |
876cecd0 TT |
5124 | { |
5125 | puts_filtered (" TYPE_STUB_SUPPORTED"); | |
5126 | } | |
5127 | if (TYPE_NOTTEXT (type)) | |
5128 | { | |
5129 | puts_filtered (" TYPE_NOTTEXT"); | |
5130 | } | |
c906108c | 5131 | puts_filtered ("\n"); |
1f704f76 | 5132 | printfi_filtered (spaces, "nfields %d ", type->num_fields ()); |
80fc5e77 | 5133 | gdb_print_host_address (type->fields (), gdb_stdout); |
c906108c | 5134 | puts_filtered ("\n"); |
1f704f76 | 5135 | for (idx = 0; idx < type->num_fields (); idx++) |
c906108c | 5136 | { |
78134374 | 5137 | if (type->code () == TYPE_CODE_ENUM) |
14e75d8e JK |
5138 | printfi_filtered (spaces + 2, |
5139 | "[%d] enumval %s type ", | |
5140 | idx, plongest (TYPE_FIELD_ENUMVAL (type, idx))); | |
5141 | else | |
5142 | printfi_filtered (spaces + 2, | |
6b850546 DT |
5143 | "[%d] bitpos %s bitsize %d type ", |
5144 | idx, plongest (TYPE_FIELD_BITPOS (type, idx)), | |
14e75d8e | 5145 | TYPE_FIELD_BITSIZE (type, idx)); |
940da03e | 5146 | gdb_print_host_address (type->field (idx).type (), gdb_stdout); |
c906108c SS |
5147 | printf_filtered (" name '%s' (", |
5148 | TYPE_FIELD_NAME (type, idx) != NULL | |
5149 | ? TYPE_FIELD_NAME (type, idx) | |
5150 | : "<NULL>"); | |
d4f3574e | 5151 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c | 5152 | printf_filtered (")\n"); |
940da03e | 5153 | if (type->field (idx).type () != NULL) |
c906108c | 5154 | { |
940da03e | 5155 | recursive_dump_type (type->field (idx).type (), spaces + 4); |
c906108c SS |
5156 | } |
5157 | } | |
78134374 | 5158 | if (type->code () == TYPE_CODE_RANGE) |
43bbcdc2 | 5159 | { |
53d5a2a5 TV |
5160 | printfi_filtered (spaces, "low "); |
5161 | dump_dynamic_prop (type->bounds ()->low); | |
5162 | printf_filtered (" high "); | |
5163 | dump_dynamic_prop (type->bounds ()->high); | |
5164 | printf_filtered ("\n"); | |
43bbcdc2 | 5165 | } |
c906108c | 5166 | |
b4ba55a1 JB |
5167 | switch (TYPE_SPECIFIC_FIELD (type)) |
5168 | { | |
5169 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
5170 | printfi_filtered (spaces, "cplus_stuff "); | |
5171 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), | |
5172 | gdb_stdout); | |
5173 | puts_filtered ("\n"); | |
5174 | print_cplus_stuff (type, spaces); | |
5175 | break; | |
8da61cc4 | 5176 | |
b4ba55a1 JB |
5177 | case TYPE_SPECIFIC_GNAT_STUFF: |
5178 | printfi_filtered (spaces, "gnat_stuff "); | |
5179 | gdb_print_host_address (TYPE_GNAT_SPECIFIC (type), gdb_stdout); | |
5180 | puts_filtered ("\n"); | |
5181 | print_gnat_stuff (type, spaces); | |
5182 | break; | |
701c159d | 5183 | |
b4ba55a1 JB |
5184 | case TYPE_SPECIFIC_FLOATFORMAT: |
5185 | printfi_filtered (spaces, "floatformat "); | |
0db7851f UW |
5186 | if (TYPE_FLOATFORMAT (type) == NULL |
5187 | || TYPE_FLOATFORMAT (type)->name == NULL) | |
b4ba55a1 JB |
5188 | puts_filtered ("(null)"); |
5189 | else | |
0db7851f | 5190 | puts_filtered (TYPE_FLOATFORMAT (type)->name); |
b4ba55a1 JB |
5191 | puts_filtered ("\n"); |
5192 | break; | |
c906108c | 5193 | |
b6cdc2c1 | 5194 | case TYPE_SPECIFIC_FUNC: |
b4ba55a1 JB |
5195 | printfi_filtered (spaces, "calling_convention %d\n", |
5196 | TYPE_CALLING_CONVENTION (type)); | |
b6cdc2c1 | 5197 | /* tail_call_list is not printed. */ |
b4ba55a1 | 5198 | break; |
09e2d7c7 DE |
5199 | |
5200 | case TYPE_SPECIFIC_SELF_TYPE: | |
5201 | printfi_filtered (spaces, "self_type "); | |
5202 | gdb_print_host_address (TYPE_SELF_TYPE (type), gdb_stdout); | |
5203 | puts_filtered ("\n"); | |
5204 | break; | |
20a5fcbd TT |
5205 | |
5206 | case TYPE_SPECIFIC_INT: | |
5207 | if (type->bit_size_differs_p ()) | |
5208 | { | |
5209 | unsigned bit_size = type->bit_size (); | |
5210 | unsigned bit_off = type->bit_offset (); | |
5211 | printfi_filtered (spaces, " bit size = %u, bit offset = %u\n", | |
5212 | bit_size, bit_off); | |
5213 | } | |
5214 | break; | |
c906108c | 5215 | } |
b4ba55a1 | 5216 | |
c906108c SS |
5217 | if (spaces == 0) |
5218 | obstack_free (&dont_print_type_obstack, NULL); | |
5219 | } | |
5212577a | 5220 | \f |
ae5a43e0 DJ |
5221 | /* Trivial helpers for the libiberty hash table, for mapping one |
5222 | type to another. */ | |
5223 | ||
fd90ace4 | 5224 | struct type_pair : public allocate_on_obstack |
ae5a43e0 | 5225 | { |
fd90ace4 YQ |
5226 | type_pair (struct type *old_, struct type *newobj_) |
5227 | : old (old_), newobj (newobj_) | |
5228 | {} | |
5229 | ||
5230 | struct type * const old, * const newobj; | |
ae5a43e0 DJ |
5231 | }; |
5232 | ||
5233 | static hashval_t | |
5234 | type_pair_hash (const void *item) | |
5235 | { | |
9a3c8263 | 5236 | const struct type_pair *pair = (const struct type_pair *) item; |
d8734c88 | 5237 | |
ae5a43e0 DJ |
5238 | return htab_hash_pointer (pair->old); |
5239 | } | |
5240 | ||
5241 | static int | |
5242 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
5243 | { | |
9a3c8263 SM |
5244 | const struct type_pair *lhs = (const struct type_pair *) item_lhs; |
5245 | const struct type_pair *rhs = (const struct type_pair *) item_rhs; | |
d8734c88 | 5246 | |
ae5a43e0 DJ |
5247 | return lhs->old == rhs->old; |
5248 | } | |
5249 | ||
5250 | /* Allocate the hash table used by copy_type_recursive to walk | |
5251 | types without duplicates. We use OBJFILE's obstack, because | |
5252 | OBJFILE is about to be deleted. */ | |
5253 | ||
6108fd18 | 5254 | htab_up |
ae5a43e0 DJ |
5255 | create_copied_types_hash (struct objfile *objfile) |
5256 | { | |
6108fd18 TT |
5257 | return htab_up (htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, |
5258 | NULL, &objfile->objfile_obstack, | |
5259 | hashtab_obstack_allocate, | |
5260 | dummy_obstack_deallocate)); | |
ae5a43e0 DJ |
5261 | } |
5262 | ||
d9823cbb KB |
5263 | /* Recursively copy (deep copy) a dynamic attribute list of a type. */ |
5264 | ||
5265 | static struct dynamic_prop_list * | |
5266 | copy_dynamic_prop_list (struct obstack *objfile_obstack, | |
5267 | struct dynamic_prop_list *list) | |
5268 | { | |
5269 | struct dynamic_prop_list *copy = list; | |
5270 | struct dynamic_prop_list **node_ptr = © | |
5271 | ||
5272 | while (*node_ptr != NULL) | |
5273 | { | |
5274 | struct dynamic_prop_list *node_copy; | |
5275 | ||
224c3ddb SM |
5276 | node_copy = ((struct dynamic_prop_list *) |
5277 | obstack_copy (objfile_obstack, *node_ptr, | |
5278 | sizeof (struct dynamic_prop_list))); | |
283a9958 | 5279 | node_copy->prop = (*node_ptr)->prop; |
d9823cbb KB |
5280 | *node_ptr = node_copy; |
5281 | ||
5282 | node_ptr = &node_copy->next; | |
5283 | } | |
5284 | ||
5285 | return copy; | |
5286 | } | |
5287 | ||
7ba81444 | 5288 | /* Recursively copy (deep copy) TYPE, if it is associated with |
eed8b28a PP |
5289 | OBJFILE. Return a new type owned by the gdbarch associated with the type, a |
5290 | saved type if we have already visited TYPE (using COPIED_TYPES), or TYPE if | |
5291 | it is not associated with OBJFILE. */ | |
ae5a43e0 DJ |
5292 | |
5293 | struct type * | |
7ba81444 MS |
5294 | copy_type_recursive (struct objfile *objfile, |
5295 | struct type *type, | |
ae5a43e0 DJ |
5296 | htab_t copied_types) |
5297 | { | |
ae5a43e0 DJ |
5298 | void **slot; |
5299 | struct type *new_type; | |
5300 | ||
e9bb382b | 5301 | if (! TYPE_OBJFILE_OWNED (type)) |
ae5a43e0 DJ |
5302 | return type; |
5303 | ||
7ba81444 MS |
5304 | /* This type shouldn't be pointing to any types in other objfiles; |
5305 | if it did, the type might disappear unexpectedly. */ | |
ae5a43e0 DJ |
5306 | gdb_assert (TYPE_OBJFILE (type) == objfile); |
5307 | ||
fd90ace4 YQ |
5308 | struct type_pair pair (type, nullptr); |
5309 | ||
ae5a43e0 DJ |
5310 | slot = htab_find_slot (copied_types, &pair, INSERT); |
5311 | if (*slot != NULL) | |
fe978cb0 | 5312 | return ((struct type_pair *) *slot)->newobj; |
ae5a43e0 | 5313 | |
e9bb382b | 5314 | new_type = alloc_type_arch (get_type_arch (type)); |
ae5a43e0 DJ |
5315 | |
5316 | /* We must add the new type to the hash table immediately, in case | |
5317 | we encounter this type again during a recursive call below. */ | |
fd90ace4 YQ |
5318 | struct type_pair *stored |
5319 | = new (&objfile->objfile_obstack) struct type_pair (type, new_type); | |
5320 | ||
ae5a43e0 DJ |
5321 | *slot = stored; |
5322 | ||
876cecd0 TT |
5323 | /* Copy the common fields of types. For the main type, we simply |
5324 | copy the entire thing and then update specific fields as needed. */ | |
5325 | *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type); | |
e9bb382b UW |
5326 | TYPE_OBJFILE_OWNED (new_type) = 0; |
5327 | TYPE_OWNER (new_type).gdbarch = get_type_arch (type); | |
876cecd0 | 5328 | |
7d93a1e0 SM |
5329 | if (type->name ()) |
5330 | new_type->set_name (xstrdup (type->name ())); | |
ae5a43e0 | 5331 | |
314ad88d | 5332 | new_type->set_instance_flags (type->instance_flags ()); |
ae5a43e0 DJ |
5333 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); |
5334 | ||
5335 | /* Copy the fields. */ | |
1f704f76 | 5336 | if (type->num_fields ()) |
ae5a43e0 DJ |
5337 | { |
5338 | int i, nfields; | |
5339 | ||
1f704f76 | 5340 | nfields = type->num_fields (); |
3cabb6b0 SM |
5341 | new_type->set_fields |
5342 | ((struct field *) | |
5343 | TYPE_ZALLOC (new_type, nfields * sizeof (struct field))); | |
5344 | ||
ae5a43e0 DJ |
5345 | for (i = 0; i < nfields; i++) |
5346 | { | |
7ba81444 MS |
5347 | TYPE_FIELD_ARTIFICIAL (new_type, i) = |
5348 | TYPE_FIELD_ARTIFICIAL (type, i); | |
ae5a43e0 | 5349 | TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
940da03e | 5350 | if (type->field (i).type ()) |
5d14b6e5 | 5351 | new_type->field (i).set_type |
940da03e | 5352 | (copy_type_recursive (objfile, type->field (i).type (), |
5d14b6e5 | 5353 | copied_types)); |
ae5a43e0 | 5354 | if (TYPE_FIELD_NAME (type, i)) |
7ba81444 MS |
5355 | TYPE_FIELD_NAME (new_type, i) = |
5356 | xstrdup (TYPE_FIELD_NAME (type, i)); | |
d6a843b5 | 5357 | switch (TYPE_FIELD_LOC_KIND (type, i)) |
ae5a43e0 | 5358 | { |
d6a843b5 | 5359 | case FIELD_LOC_KIND_BITPOS: |
ceacbf6e | 5360 | SET_FIELD_BITPOS (new_type->field (i), |
d6a843b5 JK |
5361 | TYPE_FIELD_BITPOS (type, i)); |
5362 | break; | |
14e75d8e | 5363 | case FIELD_LOC_KIND_ENUMVAL: |
ceacbf6e | 5364 | SET_FIELD_ENUMVAL (new_type->field (i), |
14e75d8e JK |
5365 | TYPE_FIELD_ENUMVAL (type, i)); |
5366 | break; | |
d6a843b5 | 5367 | case FIELD_LOC_KIND_PHYSADDR: |
ceacbf6e | 5368 | SET_FIELD_PHYSADDR (new_type->field (i), |
d6a843b5 JK |
5369 | TYPE_FIELD_STATIC_PHYSADDR (type, i)); |
5370 | break; | |
5371 | case FIELD_LOC_KIND_PHYSNAME: | |
ceacbf6e | 5372 | SET_FIELD_PHYSNAME (new_type->field (i), |
d6a843b5 JK |
5373 | xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, |
5374 | i))); | |
5375 | break; | |
5376 | default: | |
5377 | internal_error (__FILE__, __LINE__, | |
5378 | _("Unexpected type field location kind: %d"), | |
5379 | TYPE_FIELD_LOC_KIND (type, i)); | |
ae5a43e0 DJ |
5380 | } |
5381 | } | |
5382 | } | |
5383 | ||
0963b4bd | 5384 | /* For range types, copy the bounds information. */ |
78134374 | 5385 | if (type->code () == TYPE_CODE_RANGE) |
43bbcdc2 | 5386 | { |
c4dfcb36 SM |
5387 | range_bounds *bounds |
5388 | = ((struct range_bounds *) TYPE_ALLOC | |
5389 | (new_type, sizeof (struct range_bounds))); | |
5390 | ||
5391 | *bounds = *type->bounds (); | |
5392 | new_type->set_bounds (bounds); | |
43bbcdc2 PH |
5393 | } |
5394 | ||
98d48915 SM |
5395 | if (type->main_type->dyn_prop_list != NULL) |
5396 | new_type->main_type->dyn_prop_list | |
d9823cbb | 5397 | = copy_dynamic_prop_list (&objfile->objfile_obstack, |
98d48915 | 5398 | type->main_type->dyn_prop_list); |
d9823cbb | 5399 | |
3cdcd0ce | 5400 | |
ae5a43e0 DJ |
5401 | /* Copy pointers to other types. */ |
5402 | if (TYPE_TARGET_TYPE (type)) | |
7ba81444 MS |
5403 | TYPE_TARGET_TYPE (new_type) = |
5404 | copy_type_recursive (objfile, | |
5405 | TYPE_TARGET_TYPE (type), | |
5406 | copied_types); | |
f6b3afbf | 5407 | |
ae5a43e0 DJ |
5408 | /* Maybe copy the type_specific bits. |
5409 | ||
5410 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
5411 | base classes and methods. There's no fundamental reason why we | |
5412 | can't, but at the moment it is not needed. */ | |
5413 | ||
f6b3afbf DE |
5414 | switch (TYPE_SPECIFIC_FIELD (type)) |
5415 | { | |
5416 | case TYPE_SPECIFIC_NONE: | |
5417 | break; | |
5418 | case TYPE_SPECIFIC_FUNC: | |
5419 | INIT_FUNC_SPECIFIC (new_type); | |
5420 | TYPE_CALLING_CONVENTION (new_type) = TYPE_CALLING_CONVENTION (type); | |
5421 | TYPE_NO_RETURN (new_type) = TYPE_NO_RETURN (type); | |
5422 | TYPE_TAIL_CALL_LIST (new_type) = NULL; | |
5423 | break; | |
5424 | case TYPE_SPECIFIC_FLOATFORMAT: | |
5425 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); | |
5426 | break; | |
5427 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
5428 | INIT_CPLUS_SPECIFIC (new_type); | |
5429 | break; | |
5430 | case TYPE_SPECIFIC_GNAT_STUFF: | |
5431 | INIT_GNAT_SPECIFIC (new_type); | |
5432 | break; | |
09e2d7c7 DE |
5433 | case TYPE_SPECIFIC_SELF_TYPE: |
5434 | set_type_self_type (new_type, | |
5435 | copy_type_recursive (objfile, TYPE_SELF_TYPE (type), | |
5436 | copied_types)); | |
5437 | break; | |
20a5fcbd TT |
5438 | case TYPE_SPECIFIC_INT: |
5439 | TYPE_SPECIFIC_FIELD (new_type) = TYPE_SPECIFIC_INT; | |
5440 | TYPE_MAIN_TYPE (new_type)->type_specific.int_stuff | |
5441 | = TYPE_MAIN_TYPE (type)->type_specific.int_stuff; | |
5442 | break; | |
5443 | ||
f6b3afbf DE |
5444 | default: |
5445 | gdb_assert_not_reached ("bad type_specific_kind"); | |
5446 | } | |
ae5a43e0 DJ |
5447 | |
5448 | return new_type; | |
5449 | } | |
5450 | ||
4af88198 JB |
5451 | /* Make a copy of the given TYPE, except that the pointer & reference |
5452 | types are not preserved. | |
5453 | ||
5454 | This function assumes that the given type has an associated objfile. | |
5455 | This objfile is used to allocate the new type. */ | |
5456 | ||
5457 | struct type * | |
5458 | copy_type (const struct type *type) | |
5459 | { | |
5460 | struct type *new_type; | |
5461 | ||
e9bb382b | 5462 | gdb_assert (TYPE_OBJFILE_OWNED (type)); |
4af88198 | 5463 | |
e9bb382b | 5464 | new_type = alloc_type_copy (type); |
314ad88d | 5465 | new_type->set_instance_flags (type->instance_flags ()); |
4af88198 JB |
5466 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); |
5467 | memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type), | |
5468 | sizeof (struct main_type)); | |
98d48915 SM |
5469 | if (type->main_type->dyn_prop_list != NULL) |
5470 | new_type->main_type->dyn_prop_list | |
d9823cbb | 5471 | = copy_dynamic_prop_list (&TYPE_OBJFILE (type) -> objfile_obstack, |
98d48915 | 5472 | type->main_type->dyn_prop_list); |
4af88198 JB |
5473 | |
5474 | return new_type; | |
5475 | } | |
5212577a | 5476 | \f |
e9bb382b UW |
5477 | /* Helper functions to initialize architecture-specific types. */ |
5478 | ||
5479 | /* Allocate a type structure associated with GDBARCH and set its | |
5480 | CODE, LENGTH, and NAME fields. */ | |
5212577a | 5481 | |
e9bb382b UW |
5482 | struct type * |
5483 | arch_type (struct gdbarch *gdbarch, | |
77b7c781 | 5484 | enum type_code code, int bit, const char *name) |
e9bb382b UW |
5485 | { |
5486 | struct type *type; | |
5487 | ||
5488 | type = alloc_type_arch (gdbarch); | |
ae438bc5 | 5489 | set_type_code (type, code); |
77b7c781 UW |
5490 | gdb_assert ((bit % TARGET_CHAR_BIT) == 0); |
5491 | TYPE_LENGTH (type) = bit / TARGET_CHAR_BIT; | |
e9bb382b UW |
5492 | |
5493 | if (name) | |
d0e39ea2 | 5494 | type->set_name (gdbarch_obstack_strdup (gdbarch, name)); |
e9bb382b UW |
5495 | |
5496 | return type; | |
5497 | } | |
5498 | ||
5499 | /* Allocate a TYPE_CODE_INT type structure associated with GDBARCH. | |
5500 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
5501 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 5502 | |
e9bb382b UW |
5503 | struct type * |
5504 | arch_integer_type (struct gdbarch *gdbarch, | |
695bfa52 | 5505 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
5506 | { |
5507 | struct type *t; | |
5508 | ||
77b7c781 | 5509 | t = arch_type (gdbarch, TYPE_CODE_INT, bit, name); |
e9bb382b | 5510 | if (unsigned_p) |
653223d3 | 5511 | t->set_is_unsigned (true); |
e9bb382b UW |
5512 | |
5513 | return t; | |
5514 | } | |
5515 | ||
5516 | /* Allocate a TYPE_CODE_CHAR type structure associated with GDBARCH. | |
5517 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
5518 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 5519 | |
e9bb382b UW |
5520 | struct type * |
5521 | arch_character_type (struct gdbarch *gdbarch, | |
695bfa52 | 5522 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
5523 | { |
5524 | struct type *t; | |
5525 | ||
77b7c781 | 5526 | t = arch_type (gdbarch, TYPE_CODE_CHAR, bit, name); |
e9bb382b | 5527 | if (unsigned_p) |
653223d3 | 5528 | t->set_is_unsigned (true); |
e9bb382b UW |
5529 | |
5530 | return t; | |
5531 | } | |
5532 | ||
5533 | /* Allocate a TYPE_CODE_BOOL type structure associated with GDBARCH. | |
5534 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
5535 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 5536 | |
e9bb382b UW |
5537 | struct type * |
5538 | arch_boolean_type (struct gdbarch *gdbarch, | |
695bfa52 | 5539 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
5540 | { |
5541 | struct type *t; | |
5542 | ||
77b7c781 | 5543 | t = arch_type (gdbarch, TYPE_CODE_BOOL, bit, name); |
e9bb382b | 5544 | if (unsigned_p) |
653223d3 | 5545 | t->set_is_unsigned (true); |
e9bb382b UW |
5546 | |
5547 | return t; | |
5548 | } | |
5549 | ||
5550 | /* Allocate a TYPE_CODE_FLT type structure associated with GDBARCH. | |
5551 | BIT is the type size in bits; if BIT equals -1, the size is | |
5552 | determined by the floatformat. NAME is the type name. Set the | |
5553 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
5212577a | 5554 | |
27067745 | 5555 | struct type * |
e9bb382b | 5556 | arch_float_type (struct gdbarch *gdbarch, |
695bfa52 TT |
5557 | int bit, const char *name, |
5558 | const struct floatformat **floatformats) | |
8da61cc4 | 5559 | { |
0db7851f | 5560 | const struct floatformat *fmt = floatformats[gdbarch_byte_order (gdbarch)]; |
8da61cc4 DJ |
5561 | struct type *t; |
5562 | ||
0db7851f | 5563 | bit = verify_floatformat (bit, fmt); |
77b7c781 | 5564 | t = arch_type (gdbarch, TYPE_CODE_FLT, bit, name); |
0db7851f | 5565 | TYPE_FLOATFORMAT (t) = fmt; |
b79497cb | 5566 | |
8da61cc4 DJ |
5567 | return t; |
5568 | } | |
5569 | ||
88dfca6c UW |
5570 | /* Allocate a TYPE_CODE_DECFLOAT type structure associated with GDBARCH. |
5571 | BIT is the type size in bits. NAME is the type name. */ | |
5572 | ||
5573 | struct type * | |
5574 | arch_decfloat_type (struct gdbarch *gdbarch, int bit, const char *name) | |
5575 | { | |
5576 | struct type *t; | |
5577 | ||
77b7c781 | 5578 | t = arch_type (gdbarch, TYPE_CODE_DECFLOAT, bit, name); |
88dfca6c UW |
5579 | return t; |
5580 | } | |
5581 | ||
88dfca6c UW |
5582 | /* Allocate a TYPE_CODE_PTR type structure associated with GDBARCH. |
5583 | BIT is the pointer type size in bits. NAME is the type name. | |
5584 | TARGET_TYPE is the pointer target type. Always sets the pointer type's | |
5585 | TYPE_UNSIGNED flag. */ | |
5586 | ||
5587 | struct type * | |
5588 | arch_pointer_type (struct gdbarch *gdbarch, | |
5589 | int bit, const char *name, struct type *target_type) | |
5590 | { | |
5591 | struct type *t; | |
5592 | ||
77b7c781 | 5593 | t = arch_type (gdbarch, TYPE_CODE_PTR, bit, name); |
88dfca6c | 5594 | TYPE_TARGET_TYPE (t) = target_type; |
653223d3 | 5595 | t->set_is_unsigned (true); |
88dfca6c UW |
5596 | return t; |
5597 | } | |
5598 | ||
e9bb382b | 5599 | /* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH. |
77b7c781 | 5600 | NAME is the type name. BIT is the size of the flag word in bits. */ |
5212577a | 5601 | |
e9bb382b | 5602 | struct type * |
77b7c781 | 5603 | arch_flags_type (struct gdbarch *gdbarch, const char *name, int bit) |
e9bb382b | 5604 | { |
e9bb382b UW |
5605 | struct type *type; |
5606 | ||
77b7c781 | 5607 | type = arch_type (gdbarch, TYPE_CODE_FLAGS, bit, name); |
653223d3 | 5608 | type->set_is_unsigned (true); |
5e33d5f4 | 5609 | type->set_num_fields (0); |
81516450 | 5610 | /* Pre-allocate enough space assuming every field is one bit. */ |
3cabb6b0 SM |
5611 | type->set_fields |
5612 | ((struct field *) TYPE_ZALLOC (type, bit * sizeof (struct field))); | |
e9bb382b UW |
5613 | |
5614 | return type; | |
5615 | } | |
5616 | ||
5617 | /* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
81516450 DE |
5618 | position BITPOS is called NAME. Pass NAME as "" for fields that |
5619 | should not be printed. */ | |
5620 | ||
5621 | void | |
5622 | append_flags_type_field (struct type *type, int start_bitpos, int nr_bits, | |
695bfa52 | 5623 | struct type *field_type, const char *name) |
81516450 DE |
5624 | { |
5625 | int type_bitsize = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1f704f76 | 5626 | int field_nr = type->num_fields (); |
81516450 | 5627 | |
78134374 | 5628 | gdb_assert (type->code () == TYPE_CODE_FLAGS); |
1f704f76 | 5629 | gdb_assert (type->num_fields () + 1 <= type_bitsize); |
81516450 DE |
5630 | gdb_assert (start_bitpos >= 0 && start_bitpos < type_bitsize); |
5631 | gdb_assert (nr_bits >= 1 && nr_bits <= type_bitsize); | |
5632 | gdb_assert (name != NULL); | |
5633 | ||
5634 | TYPE_FIELD_NAME (type, field_nr) = xstrdup (name); | |
5d14b6e5 | 5635 | type->field (field_nr).set_type (field_type); |
ceacbf6e | 5636 | SET_FIELD_BITPOS (type->field (field_nr), start_bitpos); |
81516450 | 5637 | TYPE_FIELD_BITSIZE (type, field_nr) = nr_bits; |
5e33d5f4 | 5638 | type->set_num_fields (type->num_fields () + 1); |
81516450 DE |
5639 | } |
5640 | ||
5641 | /* Special version of append_flags_type_field to add a flag field. | |
5642 | Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
e9bb382b | 5643 | position BITPOS is called NAME. */ |
5212577a | 5644 | |
e9bb382b | 5645 | void |
695bfa52 | 5646 | append_flags_type_flag (struct type *type, int bitpos, const char *name) |
e9bb382b | 5647 | { |
81516450 | 5648 | struct gdbarch *gdbarch = get_type_arch (type); |
e9bb382b | 5649 | |
81516450 DE |
5650 | append_flags_type_field (type, bitpos, 1, |
5651 | builtin_type (gdbarch)->builtin_bool, | |
5652 | name); | |
e9bb382b UW |
5653 | } |
5654 | ||
5655 | /* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as | |
5656 | specified by CODE) associated with GDBARCH. NAME is the type name. */ | |
5212577a | 5657 | |
e9bb382b | 5658 | struct type * |
695bfa52 TT |
5659 | arch_composite_type (struct gdbarch *gdbarch, const char *name, |
5660 | enum type_code code) | |
e9bb382b UW |
5661 | { |
5662 | struct type *t; | |
d8734c88 | 5663 | |
e9bb382b UW |
5664 | gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION); |
5665 | t = arch_type (gdbarch, code, 0, NULL); | |
d0e39ea2 | 5666 | t->set_name (name); |
e9bb382b UW |
5667 | INIT_CPLUS_SPECIFIC (t); |
5668 | return t; | |
5669 | } | |
5670 | ||
5671 | /* Add new field with name NAME and type FIELD to composite type T. | |
f5dff777 DJ |
5672 | Do not set the field's position or adjust the type's length; |
5673 | the caller should do so. Return the new field. */ | |
5212577a | 5674 | |
f5dff777 | 5675 | struct field * |
695bfa52 | 5676 | append_composite_type_field_raw (struct type *t, const char *name, |
f5dff777 | 5677 | struct type *field) |
e9bb382b UW |
5678 | { |
5679 | struct field *f; | |
d8734c88 | 5680 | |
1f704f76 | 5681 | t->set_num_fields (t->num_fields () + 1); |
80fc5e77 | 5682 | t->set_fields (XRESIZEVEC (struct field, t->fields (), |
3cabb6b0 | 5683 | t->num_fields ())); |
80fc5e77 | 5684 | f = &t->field (t->num_fields () - 1); |
e9bb382b | 5685 | memset (f, 0, sizeof f[0]); |
5d14b6e5 | 5686 | f[0].set_type (field); |
e9bb382b | 5687 | FIELD_NAME (f[0]) = name; |
f5dff777 DJ |
5688 | return f; |
5689 | } | |
5690 | ||
5691 | /* Add new field with name NAME and type FIELD to composite type T. | |
5692 | ALIGNMENT (if non-zero) specifies the minimum field alignment. */ | |
5212577a | 5693 | |
f5dff777 | 5694 | void |
695bfa52 | 5695 | append_composite_type_field_aligned (struct type *t, const char *name, |
f5dff777 DJ |
5696 | struct type *field, int alignment) |
5697 | { | |
5698 | struct field *f = append_composite_type_field_raw (t, name, field); | |
d8734c88 | 5699 | |
78134374 | 5700 | if (t->code () == TYPE_CODE_UNION) |
e9bb382b UW |
5701 | { |
5702 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) | |
5703 | TYPE_LENGTH (t) = TYPE_LENGTH (field); | |
5704 | } | |
78134374 | 5705 | else if (t->code () == TYPE_CODE_STRUCT) |
e9bb382b UW |
5706 | { |
5707 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
1f704f76 | 5708 | if (t->num_fields () > 1) |
e9bb382b | 5709 | { |
f41f5e61 PA |
5710 | SET_FIELD_BITPOS (f[0], |
5711 | (FIELD_BITPOS (f[-1]) | |
b6cdac4b | 5712 | + (TYPE_LENGTH (f[-1].type ()) |
f41f5e61 | 5713 | * TARGET_CHAR_BIT))); |
e9bb382b UW |
5714 | |
5715 | if (alignment) | |
5716 | { | |
86c3c1fc AB |
5717 | int left; |
5718 | ||
5719 | alignment *= TARGET_CHAR_BIT; | |
5720 | left = FIELD_BITPOS (f[0]) % alignment; | |
d8734c88 | 5721 | |
e9bb382b UW |
5722 | if (left) |
5723 | { | |
f41f5e61 | 5724 | SET_FIELD_BITPOS (f[0], FIELD_BITPOS (f[0]) + (alignment - left)); |
86c3c1fc | 5725 | TYPE_LENGTH (t) += (alignment - left) / TARGET_CHAR_BIT; |
e9bb382b UW |
5726 | } |
5727 | } | |
5728 | } | |
5729 | } | |
5730 | } | |
5731 | ||
5732 | /* Add new field with name NAME and type FIELD to composite type T. */ | |
5212577a | 5733 | |
e9bb382b | 5734 | void |
695bfa52 | 5735 | append_composite_type_field (struct type *t, const char *name, |
e9bb382b UW |
5736 | struct type *field) |
5737 | { | |
5738 | append_composite_type_field_aligned (t, name, field, 0); | |
5739 | } | |
5740 | ||
000177f0 AC |
5741 | static struct gdbarch_data *gdbtypes_data; |
5742 | ||
5743 | const struct builtin_type * | |
5744 | builtin_type (struct gdbarch *gdbarch) | |
5745 | { | |
9a3c8263 | 5746 | return (const struct builtin_type *) gdbarch_data (gdbarch, gdbtypes_data); |
000177f0 AC |
5747 | } |
5748 | ||
5749 | static void * | |
5750 | gdbtypes_post_init (struct gdbarch *gdbarch) | |
5751 | { | |
5752 | struct builtin_type *builtin_type | |
5753 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); | |
5754 | ||
46bf5051 | 5755 | /* Basic types. */ |
e9bb382b | 5756 | builtin_type->builtin_void |
77b7c781 | 5757 | = arch_type (gdbarch, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void"); |
e9bb382b UW |
5758 | builtin_type->builtin_char |
5759 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5760 | !gdbarch_char_signed (gdbarch), "char"); | |
15152a54 | 5761 | builtin_type->builtin_char->set_has_no_signedness (true); |
e9bb382b UW |
5762 | builtin_type->builtin_signed_char |
5763 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5764 | 0, "signed char"); | |
5765 | builtin_type->builtin_unsigned_char | |
5766 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5767 | 1, "unsigned char"); | |
5768 | builtin_type->builtin_short | |
5769 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
5770 | 0, "short"); | |
5771 | builtin_type->builtin_unsigned_short | |
5772 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
5773 | 1, "unsigned short"); | |
5774 | builtin_type->builtin_int | |
5775 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
5776 | 0, "int"); | |
5777 | builtin_type->builtin_unsigned_int | |
5778 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
5779 | 1, "unsigned int"); | |
5780 | builtin_type->builtin_long | |
5781 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
5782 | 0, "long"); | |
5783 | builtin_type->builtin_unsigned_long | |
5784 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
5785 | 1, "unsigned long"); | |
5786 | builtin_type->builtin_long_long | |
5787 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
5788 | 0, "long long"); | |
5789 | builtin_type->builtin_unsigned_long_long | |
5790 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
5791 | 1, "unsigned long long"); | |
a6d0f249 AH |
5792 | builtin_type->builtin_half |
5793 | = arch_float_type (gdbarch, gdbarch_half_bit (gdbarch), | |
5794 | "half", gdbarch_half_format (gdbarch)); | |
70bd8e24 | 5795 | builtin_type->builtin_float |
e9bb382b | 5796 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), |
27067745 | 5797 | "float", gdbarch_float_format (gdbarch)); |
2a67f09d FW |
5798 | builtin_type->builtin_bfloat16 |
5799 | = arch_float_type (gdbarch, gdbarch_bfloat16_bit (gdbarch), | |
5800 | "bfloat16", gdbarch_bfloat16_format (gdbarch)); | |
70bd8e24 | 5801 | builtin_type->builtin_double |
e9bb382b | 5802 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), |
27067745 | 5803 | "double", gdbarch_double_format (gdbarch)); |
70bd8e24 | 5804 | builtin_type->builtin_long_double |
e9bb382b | 5805 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), |
27067745 | 5806 | "long double", gdbarch_long_double_format (gdbarch)); |
70bd8e24 | 5807 | builtin_type->builtin_complex |
5b930b45 | 5808 | = init_complex_type ("complex", builtin_type->builtin_float); |
70bd8e24 | 5809 | builtin_type->builtin_double_complex |
5b930b45 | 5810 | = init_complex_type ("double complex", builtin_type->builtin_double); |
e9bb382b | 5811 | builtin_type->builtin_string |
77b7c781 | 5812 | = arch_type (gdbarch, TYPE_CODE_STRING, TARGET_CHAR_BIT, "string"); |
e9bb382b | 5813 | builtin_type->builtin_bool |
77b7c781 | 5814 | = arch_type (gdbarch, TYPE_CODE_BOOL, TARGET_CHAR_BIT, "bool"); |
000177f0 | 5815 | |
7678ef8f TJB |
5816 | /* The following three are about decimal floating point types, which |
5817 | are 32-bits, 64-bits and 128-bits respectively. */ | |
5818 | builtin_type->builtin_decfloat | |
88dfca6c | 5819 | = arch_decfloat_type (gdbarch, 32, "_Decimal32"); |
7678ef8f | 5820 | builtin_type->builtin_decdouble |
88dfca6c | 5821 | = arch_decfloat_type (gdbarch, 64, "_Decimal64"); |
7678ef8f | 5822 | builtin_type->builtin_declong |
88dfca6c | 5823 | = arch_decfloat_type (gdbarch, 128, "_Decimal128"); |
7678ef8f | 5824 | |
69feb676 | 5825 | /* "True" character types. */ |
e9bb382b UW |
5826 | builtin_type->builtin_true_char |
5827 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 0, "true character"); | |
5828 | builtin_type->builtin_true_unsigned_char | |
5829 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 1, "true character"); | |
69feb676 | 5830 | |
df4df182 | 5831 | /* Fixed-size integer types. */ |
e9bb382b UW |
5832 | builtin_type->builtin_int0 |
5833 | = arch_integer_type (gdbarch, 0, 0, "int0_t"); | |
5834 | builtin_type->builtin_int8 | |
5835 | = arch_integer_type (gdbarch, 8, 0, "int8_t"); | |
5836 | builtin_type->builtin_uint8 | |
5837 | = arch_integer_type (gdbarch, 8, 1, "uint8_t"); | |
5838 | builtin_type->builtin_int16 | |
5839 | = arch_integer_type (gdbarch, 16, 0, "int16_t"); | |
5840 | builtin_type->builtin_uint16 | |
5841 | = arch_integer_type (gdbarch, 16, 1, "uint16_t"); | |
d1908f2d JD |
5842 | builtin_type->builtin_int24 |
5843 | = arch_integer_type (gdbarch, 24, 0, "int24_t"); | |
5844 | builtin_type->builtin_uint24 | |
5845 | = arch_integer_type (gdbarch, 24, 1, "uint24_t"); | |
e9bb382b UW |
5846 | builtin_type->builtin_int32 |
5847 | = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
5848 | builtin_type->builtin_uint32 | |
5849 | = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
5850 | builtin_type->builtin_int64 | |
5851 | = arch_integer_type (gdbarch, 64, 0, "int64_t"); | |
5852 | builtin_type->builtin_uint64 | |
5853 | = arch_integer_type (gdbarch, 64, 1, "uint64_t"); | |
5854 | builtin_type->builtin_int128 | |
5855 | = arch_integer_type (gdbarch, 128, 0, "int128_t"); | |
5856 | builtin_type->builtin_uint128 | |
5857 | = arch_integer_type (gdbarch, 128, 1, "uint128_t"); | |
314ad88d PA |
5858 | |
5859 | builtin_type->builtin_int8->set_instance_flags | |
5860 | (builtin_type->builtin_int8->instance_flags () | |
5861 | | TYPE_INSTANCE_FLAG_NOTTEXT); | |
5862 | ||
5863 | builtin_type->builtin_uint8->set_instance_flags | |
5864 | (builtin_type->builtin_uint8->instance_flags () | |
5865 | | TYPE_INSTANCE_FLAG_NOTTEXT); | |
df4df182 | 5866 | |
9a22f0d0 PM |
5867 | /* Wide character types. */ |
5868 | builtin_type->builtin_char16 | |
53e710ac | 5869 | = arch_integer_type (gdbarch, 16, 1, "char16_t"); |
9a22f0d0 | 5870 | builtin_type->builtin_char32 |
53e710ac | 5871 | = arch_integer_type (gdbarch, 32, 1, "char32_t"); |
53375380 PA |
5872 | builtin_type->builtin_wchar |
5873 | = arch_integer_type (gdbarch, gdbarch_wchar_bit (gdbarch), | |
5874 | !gdbarch_wchar_signed (gdbarch), "wchar_t"); | |
9a22f0d0 | 5875 | |
46bf5051 | 5876 | /* Default data/code pointer types. */ |
e9bb382b UW |
5877 | builtin_type->builtin_data_ptr |
5878 | = lookup_pointer_type (builtin_type->builtin_void); | |
5879 | builtin_type->builtin_func_ptr | |
5880 | = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
0875794a JK |
5881 | builtin_type->builtin_func_func |
5882 | = lookup_function_type (builtin_type->builtin_func_ptr); | |
46bf5051 | 5883 | |
78267919 | 5884 | /* This type represents a GDB internal function. */ |
e9bb382b UW |
5885 | builtin_type->internal_fn |
5886 | = arch_type (gdbarch, TYPE_CODE_INTERNAL_FUNCTION, 0, | |
5887 | "<internal function>"); | |
78267919 | 5888 | |
e81e7f5e SC |
5889 | /* This type represents an xmethod. */ |
5890 | builtin_type->xmethod | |
5891 | = arch_type (gdbarch, TYPE_CODE_XMETHOD, 0, "<xmethod>"); | |
5892 | ||
46bf5051 UW |
5893 | return builtin_type; |
5894 | } | |
5895 | ||
46bf5051 UW |
5896 | /* This set of objfile-based types is intended to be used by symbol |
5897 | readers as basic types. */ | |
5898 | ||
7a102139 TT |
5899 | static const struct objfile_key<struct objfile_type, |
5900 | gdb::noop_deleter<struct objfile_type>> | |
5901 | objfile_type_data; | |
46bf5051 UW |
5902 | |
5903 | const struct objfile_type * | |
5904 | objfile_type (struct objfile *objfile) | |
5905 | { | |
5906 | struct gdbarch *gdbarch; | |
7a102139 | 5907 | struct objfile_type *objfile_type = objfile_type_data.get (objfile); |
46bf5051 UW |
5908 | |
5909 | if (objfile_type) | |
5910 | return objfile_type; | |
5911 | ||
5912 | objfile_type = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
5913 | 1, struct objfile_type); | |
5914 | ||
5915 | /* Use the objfile architecture to determine basic type properties. */ | |
08feed99 | 5916 | gdbarch = objfile->arch (); |
46bf5051 UW |
5917 | |
5918 | /* Basic types. */ | |
5919 | objfile_type->builtin_void | |
77b7c781 | 5920 | = init_type (objfile, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void"); |
46bf5051 | 5921 | objfile_type->builtin_char |
19f392bc UW |
5922 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5923 | !gdbarch_char_signed (gdbarch), "char"); | |
15152a54 | 5924 | objfile_type->builtin_char->set_has_no_signedness (true); |
46bf5051 | 5925 | objfile_type->builtin_signed_char |
19f392bc UW |
5926 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5927 | 0, "signed char"); | |
46bf5051 | 5928 | objfile_type->builtin_unsigned_char |
19f392bc UW |
5929 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5930 | 1, "unsigned char"); | |
46bf5051 | 5931 | objfile_type->builtin_short |
19f392bc UW |
5932 | = init_integer_type (objfile, gdbarch_short_bit (gdbarch), |
5933 | 0, "short"); | |
46bf5051 | 5934 | objfile_type->builtin_unsigned_short |
19f392bc UW |
5935 | = init_integer_type (objfile, gdbarch_short_bit (gdbarch), |
5936 | 1, "unsigned short"); | |
46bf5051 | 5937 | objfile_type->builtin_int |
19f392bc UW |
5938 | = init_integer_type (objfile, gdbarch_int_bit (gdbarch), |
5939 | 0, "int"); | |
46bf5051 | 5940 | objfile_type->builtin_unsigned_int |
19f392bc UW |
5941 | = init_integer_type (objfile, gdbarch_int_bit (gdbarch), |
5942 | 1, "unsigned int"); | |
46bf5051 | 5943 | objfile_type->builtin_long |
19f392bc UW |
5944 | = init_integer_type (objfile, gdbarch_long_bit (gdbarch), |
5945 | 0, "long"); | |
46bf5051 | 5946 | objfile_type->builtin_unsigned_long |
19f392bc UW |
5947 | = init_integer_type (objfile, gdbarch_long_bit (gdbarch), |
5948 | 1, "unsigned long"); | |
46bf5051 | 5949 | objfile_type->builtin_long_long |
19f392bc UW |
5950 | = init_integer_type (objfile, gdbarch_long_long_bit (gdbarch), |
5951 | 0, "long long"); | |
46bf5051 | 5952 | objfile_type->builtin_unsigned_long_long |
19f392bc UW |
5953 | = init_integer_type (objfile, gdbarch_long_long_bit (gdbarch), |
5954 | 1, "unsigned long long"); | |
46bf5051 | 5955 | objfile_type->builtin_float |
19f392bc UW |
5956 | = init_float_type (objfile, gdbarch_float_bit (gdbarch), |
5957 | "float", gdbarch_float_format (gdbarch)); | |
46bf5051 | 5958 | objfile_type->builtin_double |
19f392bc UW |
5959 | = init_float_type (objfile, gdbarch_double_bit (gdbarch), |
5960 | "double", gdbarch_double_format (gdbarch)); | |
46bf5051 | 5961 | objfile_type->builtin_long_double |
19f392bc UW |
5962 | = init_float_type (objfile, gdbarch_long_double_bit (gdbarch), |
5963 | "long double", gdbarch_long_double_format (gdbarch)); | |
46bf5051 UW |
5964 | |
5965 | /* This type represents a type that was unrecognized in symbol read-in. */ | |
5966 | objfile_type->builtin_error | |
19f392bc | 5967 | = init_type (objfile, TYPE_CODE_ERROR, 0, "<unknown type>"); |
46bf5051 UW |
5968 | |
5969 | /* The following set of types is used for symbols with no | |
5970 | debug information. */ | |
5971 | objfile_type->nodebug_text_symbol | |
77b7c781 | 5972 | = init_type (objfile, TYPE_CODE_FUNC, TARGET_CHAR_BIT, |
19f392bc | 5973 | "<text variable, no debug info>"); |
03cc7249 | 5974 | |
0875794a | 5975 | objfile_type->nodebug_text_gnu_ifunc_symbol |
77b7c781 | 5976 | = init_type (objfile, TYPE_CODE_FUNC, TARGET_CHAR_BIT, |
19f392bc | 5977 | "<text gnu-indirect-function variable, no debug info>"); |
03cc7249 SM |
5978 | objfile_type->nodebug_text_gnu_ifunc_symbol->set_is_gnu_ifunc (true); |
5979 | ||
0875794a | 5980 | objfile_type->nodebug_got_plt_symbol |
19f392bc UW |
5981 | = init_pointer_type (objfile, gdbarch_addr_bit (gdbarch), |
5982 | "<text from jump slot in .got.plt, no debug info>", | |
5983 | objfile_type->nodebug_text_symbol); | |
46bf5051 | 5984 | objfile_type->nodebug_data_symbol |
46a4882b | 5985 | = init_nodebug_var_type (objfile, "<data variable, no debug info>"); |
46bf5051 | 5986 | objfile_type->nodebug_unknown_symbol |
46a4882b | 5987 | = init_nodebug_var_type (objfile, "<variable (not text or data), no debug info>"); |
46bf5051 | 5988 | objfile_type->nodebug_tls_symbol |
46a4882b | 5989 | = init_nodebug_var_type (objfile, "<thread local variable, no debug info>"); |
000177f0 AC |
5990 | |
5991 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
0a7cfe2c | 5992 | the same. |
000177f0 AC |
5993 | |
5994 | The upshot is: | |
5995 | - gdb's `struct type' always describes the target's | |
5996 | representation. | |
5997 | - gdb's `struct value' objects should always hold values in | |
5998 | target form. | |
5999 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
6000 | address space that the assembler and linker work with. Thus, | |
6001 | since target_read_memory takes a CORE_ADDR as an argument, it | |
6002 | can access any memory on the target, even if the processor has | |
6003 | separate code and data address spaces. | |
6004 | ||
46bf5051 UW |
6005 | In this context, objfile_type->builtin_core_addr is a bit odd: |
6006 | it's a target type for a value the target will never see. It's | |
6007 | only used to hold the values of (typeless) linker symbols, which | |
6008 | are indeed in the unified virtual address space. */ | |
000177f0 | 6009 | |
46bf5051 | 6010 | objfile_type->builtin_core_addr |
19f392bc UW |
6011 | = init_integer_type (objfile, gdbarch_addr_bit (gdbarch), 1, |
6012 | "__CORE_ADDR"); | |
64c50499 | 6013 | |
7a102139 | 6014 | objfile_type_data.set (objfile, objfile_type); |
46bf5051 | 6015 | return objfile_type; |
000177f0 AC |
6016 | } |
6017 | ||
6c265988 | 6018 | void _initialize_gdbtypes (); |
c906108c | 6019 | void |
6c265988 | 6020 | _initialize_gdbtypes () |
c906108c | 6021 | { |
5674de60 UW |
6022 | gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
6023 | ||
ccce17b0 YQ |
6024 | add_setshow_zuinteger_cmd ("overload", no_class, &overload_debug, |
6025 | _("Set debugging of C++ overloading."), | |
6026 | _("Show debugging of C++ overloading."), | |
6027 | _("When enabled, ranking of the " | |
6028 | "functions is displayed."), | |
6029 | NULL, | |
6030 | show_overload_debug, | |
6031 | &setdebuglist, &showdebuglist); | |
5674de60 | 6032 | |
7ba81444 | 6033 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 | 6034 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3e43a32a MS |
6035 | &opaque_type_resolution, |
6036 | _("Set resolution of opaque struct/class/union" | |
6037 | " types (if set before loading symbols)."), | |
6038 | _("Show resolution of opaque struct/class/union" | |
6039 | " types (if set before loading symbols)."), | |
6040 | NULL, NULL, | |
5674de60 UW |
6041 | show_opaque_type_resolution, |
6042 | &setlist, &showlist); | |
a451cb65 KS |
6043 | |
6044 | /* Add an option to permit non-strict type checking. */ | |
6045 | add_setshow_boolean_cmd ("type", class_support, | |
6046 | &strict_type_checking, | |
6047 | _("Set strict type checking."), | |
6048 | _("Show strict type checking."), | |
6049 | NULL, NULL, | |
6050 | show_strict_type_checking, | |
6051 | &setchecklist, &showchecklist); | |
c906108c | 6052 | } |