Commit | Line | Data |
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c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
4f2aea11 | 2 | |
42a4f53d | 3 | Copyright (C) 1992-2019 Free Software Foundation, Inc. |
4f2aea11 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support, using pieces from other GDB modules. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
c906108c SS |
23 | #include "bfd.h" |
24 | #include "symtab.h" | |
25 | #include "symfile.h" | |
26 | #include "objfiles.h" | |
27 | #include "gdbtypes.h" | |
28 | #include "expression.h" | |
29 | #include "language.h" | |
30 | #include "target.h" | |
31 | #include "value.h" | |
32 | #include "demangle.h" | |
33 | #include "complaints.h" | |
34 | #include "gdbcmd.h" | |
015a42b4 | 35 | #include "cp-abi.h" |
ae5a43e0 | 36 | #include "hashtab.h" |
8de20a37 | 37 | #include "cp-support.h" |
ca092b61 DE |
38 | #include "bcache.h" |
39 | #include "dwarf2loc.h" | |
80180f79 | 40 | #include "gdbcore.h" |
1841ee5d | 41 | #include "floatformat.h" |
ac3aafc7 | 42 | |
6403aeea SW |
43 | /* Initialize BADNESS constants. */ |
44 | ||
a9d5ef47 | 45 | const struct rank LENGTH_MISMATCH_BADNESS = {100,0}; |
6403aeea | 46 | |
a9d5ef47 SW |
47 | const struct rank TOO_FEW_PARAMS_BADNESS = {100,0}; |
48 | const struct rank INCOMPATIBLE_TYPE_BADNESS = {100,0}; | |
6403aeea | 49 | |
a9d5ef47 | 50 | const struct rank EXACT_MATCH_BADNESS = {0,0}; |
6403aeea | 51 | |
a9d5ef47 SW |
52 | const struct rank INTEGER_PROMOTION_BADNESS = {1,0}; |
53 | const struct rank FLOAT_PROMOTION_BADNESS = {1,0}; | |
54 | const struct rank BASE_PTR_CONVERSION_BADNESS = {1,0}; | |
e15c3eb4 | 55 | const struct rank CV_CONVERSION_BADNESS = {1, 0}; |
a9d5ef47 SW |
56 | const struct rank INTEGER_CONVERSION_BADNESS = {2,0}; |
57 | const struct rank FLOAT_CONVERSION_BADNESS = {2,0}; | |
58 | const struct rank INT_FLOAT_CONVERSION_BADNESS = {2,0}; | |
59 | const struct rank VOID_PTR_CONVERSION_BADNESS = {2,0}; | |
5b4f6e25 | 60 | const struct rank BOOL_CONVERSION_BADNESS = {3,0}; |
a9d5ef47 SW |
61 | const struct rank BASE_CONVERSION_BADNESS = {2,0}; |
62 | const struct rank REFERENCE_CONVERSION_BADNESS = {2,0}; | |
da096638 | 63 | const struct rank NULL_POINTER_CONVERSION_BADNESS = {2,0}; |
a9d5ef47 | 64 | const struct rank NS_POINTER_CONVERSION_BADNESS = {10,0}; |
a451cb65 | 65 | const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS = {3,0}; |
6403aeea | 66 | |
8da61cc4 | 67 | /* Floatformat pairs. */ |
f9e9243a UW |
68 | const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN] = { |
69 | &floatformat_ieee_half_big, | |
70 | &floatformat_ieee_half_little | |
71 | }; | |
8da61cc4 DJ |
72 | const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { |
73 | &floatformat_ieee_single_big, | |
74 | &floatformat_ieee_single_little | |
75 | }; | |
76 | const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { | |
77 | &floatformat_ieee_double_big, | |
78 | &floatformat_ieee_double_little | |
79 | }; | |
80 | const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { | |
81 | &floatformat_ieee_double_big, | |
82 | &floatformat_ieee_double_littlebyte_bigword | |
83 | }; | |
84 | const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { | |
85 | &floatformat_i387_ext, | |
86 | &floatformat_i387_ext | |
87 | }; | |
88 | const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { | |
89 | &floatformat_m68881_ext, | |
90 | &floatformat_m68881_ext | |
91 | }; | |
92 | const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { | |
93 | &floatformat_arm_ext_big, | |
94 | &floatformat_arm_ext_littlebyte_bigword | |
95 | }; | |
96 | const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { | |
97 | &floatformat_ia64_spill_big, | |
98 | &floatformat_ia64_spill_little | |
99 | }; | |
100 | const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = { | |
101 | &floatformat_ia64_quad_big, | |
102 | &floatformat_ia64_quad_little | |
103 | }; | |
104 | const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { | |
105 | &floatformat_vax_f, | |
106 | &floatformat_vax_f | |
107 | }; | |
108 | const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { | |
109 | &floatformat_vax_d, | |
110 | &floatformat_vax_d | |
111 | }; | |
b14d30e1 | 112 | const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { |
f5aee5ee AM |
113 | &floatformat_ibm_long_double_big, |
114 | &floatformat_ibm_long_double_little | |
b14d30e1 | 115 | }; |
8da61cc4 | 116 | |
2873700e KS |
117 | /* Should opaque types be resolved? */ |
118 | ||
119 | static int opaque_type_resolution = 1; | |
120 | ||
121 | /* A flag to enable printing of debugging information of C++ | |
122 | overloading. */ | |
123 | ||
124 | unsigned int overload_debug = 0; | |
125 | ||
a451cb65 KS |
126 | /* A flag to enable strict type checking. */ |
127 | ||
128 | static int strict_type_checking = 1; | |
129 | ||
2873700e | 130 | /* A function to show whether opaque types are resolved. */ |
5212577a | 131 | |
920d2a44 AC |
132 | static void |
133 | show_opaque_type_resolution (struct ui_file *file, int from_tty, | |
7ba81444 MS |
134 | struct cmd_list_element *c, |
135 | const char *value) | |
920d2a44 | 136 | { |
3e43a32a MS |
137 | fprintf_filtered (file, _("Resolution of opaque struct/class/union types " |
138 | "(if set before loading symbols) is %s.\n"), | |
920d2a44 AC |
139 | value); |
140 | } | |
141 | ||
2873700e | 142 | /* A function to show whether C++ overload debugging is enabled. */ |
5212577a | 143 | |
920d2a44 AC |
144 | static void |
145 | show_overload_debug (struct ui_file *file, int from_tty, | |
146 | struct cmd_list_element *c, const char *value) | |
147 | { | |
7ba81444 MS |
148 | fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"), |
149 | value); | |
920d2a44 | 150 | } |
c906108c | 151 | |
a451cb65 KS |
152 | /* A function to show the status of strict type checking. */ |
153 | ||
154 | static void | |
155 | show_strict_type_checking (struct ui_file *file, int from_tty, | |
156 | struct cmd_list_element *c, const char *value) | |
157 | { | |
158 | fprintf_filtered (file, _("Strict type checking is %s.\n"), value); | |
159 | } | |
160 | ||
5212577a | 161 | \f |
e9bb382b UW |
162 | /* Allocate a new OBJFILE-associated type structure and fill it |
163 | with some defaults. Space for the type structure is allocated | |
164 | on the objfile's objfile_obstack. */ | |
c906108c SS |
165 | |
166 | struct type * | |
fba45db2 | 167 | alloc_type (struct objfile *objfile) |
c906108c | 168 | { |
52f0bd74 | 169 | struct type *type; |
c906108c | 170 | |
e9bb382b UW |
171 | gdb_assert (objfile != NULL); |
172 | ||
7ba81444 | 173 | /* Alloc the structure and start off with all fields zeroed. */ |
e9bb382b UW |
174 | type = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct type); |
175 | TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (&objfile->objfile_obstack, | |
176 | struct main_type); | |
177 | OBJSTAT (objfile, n_types++); | |
c906108c | 178 | |
e9bb382b UW |
179 | TYPE_OBJFILE_OWNED (type) = 1; |
180 | TYPE_OWNER (type).objfile = objfile; | |
c906108c | 181 | |
7ba81444 | 182 | /* Initialize the fields that might not be zero. */ |
c906108c SS |
183 | |
184 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
2fdde8f8 | 185 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
c906108c | 186 | |
c16abbde | 187 | return type; |
c906108c SS |
188 | } |
189 | ||
e9bb382b UW |
190 | /* Allocate a new GDBARCH-associated type structure and fill it |
191 | with some defaults. Space for the type structure is allocated | |
8f57eec2 | 192 | on the obstack associated with GDBARCH. */ |
e9bb382b UW |
193 | |
194 | struct type * | |
195 | alloc_type_arch (struct gdbarch *gdbarch) | |
196 | { | |
197 | struct type *type; | |
198 | ||
199 | gdb_assert (gdbarch != NULL); | |
200 | ||
201 | /* Alloc the structure and start off with all fields zeroed. */ | |
202 | ||
8f57eec2 PP |
203 | type = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct type); |
204 | TYPE_MAIN_TYPE (type) = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct main_type); | |
e9bb382b UW |
205 | |
206 | TYPE_OBJFILE_OWNED (type) = 0; | |
207 | TYPE_OWNER (type).gdbarch = gdbarch; | |
208 | ||
209 | /* Initialize the fields that might not be zero. */ | |
210 | ||
211 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
e9bb382b UW |
212 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
213 | ||
214 | return type; | |
215 | } | |
216 | ||
217 | /* If TYPE is objfile-associated, allocate a new type structure | |
218 | associated with the same objfile. If TYPE is gdbarch-associated, | |
219 | allocate a new type structure associated with the same gdbarch. */ | |
220 | ||
221 | struct type * | |
222 | alloc_type_copy (const struct type *type) | |
223 | { | |
224 | if (TYPE_OBJFILE_OWNED (type)) | |
225 | return alloc_type (TYPE_OWNER (type).objfile); | |
226 | else | |
227 | return alloc_type_arch (TYPE_OWNER (type).gdbarch); | |
228 | } | |
229 | ||
230 | /* If TYPE is gdbarch-associated, return that architecture. | |
231 | If TYPE is objfile-associated, return that objfile's architecture. */ | |
232 | ||
233 | struct gdbarch * | |
234 | get_type_arch (const struct type *type) | |
235 | { | |
2fabdf33 AB |
236 | struct gdbarch *arch; |
237 | ||
e9bb382b | 238 | if (TYPE_OBJFILE_OWNED (type)) |
2fabdf33 | 239 | arch = get_objfile_arch (TYPE_OWNER (type).objfile); |
e9bb382b | 240 | else |
2fabdf33 AB |
241 | arch = TYPE_OWNER (type).gdbarch; |
242 | ||
243 | /* The ARCH can be NULL if TYPE is associated with neither an objfile nor | |
244 | a gdbarch, however, this is very rare, and even then, in most cases | |
245 | that get_type_arch is called, we assume that a non-NULL value is | |
246 | returned. */ | |
247 | gdb_assert (arch != NULL); | |
248 | return arch; | |
e9bb382b UW |
249 | } |
250 | ||
99ad9427 YQ |
251 | /* See gdbtypes.h. */ |
252 | ||
253 | struct type * | |
254 | get_target_type (struct type *type) | |
255 | { | |
256 | if (type != NULL) | |
257 | { | |
258 | type = TYPE_TARGET_TYPE (type); | |
259 | if (type != NULL) | |
260 | type = check_typedef (type); | |
261 | } | |
262 | ||
263 | return type; | |
264 | } | |
265 | ||
2e056931 SM |
266 | /* See gdbtypes.h. */ |
267 | ||
268 | unsigned int | |
269 | type_length_units (struct type *type) | |
270 | { | |
271 | struct gdbarch *arch = get_type_arch (type); | |
272 | int unit_size = gdbarch_addressable_memory_unit_size (arch); | |
273 | ||
274 | return TYPE_LENGTH (type) / unit_size; | |
275 | } | |
276 | ||
2fdde8f8 DJ |
277 | /* Alloc a new type instance structure, fill it with some defaults, |
278 | and point it at OLDTYPE. Allocate the new type instance from the | |
279 | same place as OLDTYPE. */ | |
280 | ||
281 | static struct type * | |
282 | alloc_type_instance (struct type *oldtype) | |
283 | { | |
284 | struct type *type; | |
285 | ||
286 | /* Allocate the structure. */ | |
287 | ||
e9bb382b | 288 | if (! TYPE_OBJFILE_OWNED (oldtype)) |
2fabdf33 | 289 | type = GDBARCH_OBSTACK_ZALLOC (get_type_arch (oldtype), struct type); |
2fdde8f8 | 290 | else |
1deafd4e PA |
291 | type = OBSTACK_ZALLOC (&TYPE_OBJFILE (oldtype)->objfile_obstack, |
292 | struct type); | |
293 | ||
2fdde8f8 DJ |
294 | TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype); |
295 | ||
296 | TYPE_CHAIN (type) = type; /* Chain back to itself for now. */ | |
297 | ||
c16abbde | 298 | return type; |
2fdde8f8 DJ |
299 | } |
300 | ||
301 | /* Clear all remnants of the previous type at TYPE, in preparation for | |
e9bb382b | 302 | replacing it with something else. Preserve owner information. */ |
5212577a | 303 | |
2fdde8f8 DJ |
304 | static void |
305 | smash_type (struct type *type) | |
306 | { | |
e9bb382b UW |
307 | int objfile_owned = TYPE_OBJFILE_OWNED (type); |
308 | union type_owner owner = TYPE_OWNER (type); | |
309 | ||
2fdde8f8 DJ |
310 | memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
311 | ||
e9bb382b UW |
312 | /* Restore owner information. */ |
313 | TYPE_OBJFILE_OWNED (type) = objfile_owned; | |
314 | TYPE_OWNER (type) = owner; | |
315 | ||
2fdde8f8 DJ |
316 | /* For now, delete the rings. */ |
317 | TYPE_CHAIN (type) = type; | |
318 | ||
319 | /* For now, leave the pointer/reference types alone. */ | |
320 | } | |
321 | ||
c906108c SS |
322 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
323 | to a pointer to memory where the pointer type should be stored. | |
324 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
325 | We allocate new memory if needed. */ | |
326 | ||
327 | struct type * | |
fba45db2 | 328 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 329 | { |
52f0bd74 | 330 | struct type *ntype; /* New type */ |
053cb41b | 331 | struct type *chain; |
c906108c SS |
332 | |
333 | ntype = TYPE_POINTER_TYPE (type); | |
334 | ||
c5aa993b | 335 | if (ntype) |
c906108c | 336 | { |
c5aa993b | 337 | if (typeptr == 0) |
7ba81444 MS |
338 | return ntype; /* Don't care about alloc, |
339 | and have new type. */ | |
c906108c | 340 | else if (*typeptr == 0) |
c5aa993b | 341 | { |
7ba81444 | 342 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 343 | return ntype; |
c5aa993b | 344 | } |
c906108c SS |
345 | } |
346 | ||
347 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
348 | { | |
e9bb382b | 349 | ntype = alloc_type_copy (type); |
c906108c SS |
350 | if (typeptr) |
351 | *typeptr = ntype; | |
352 | } | |
7ba81444 | 353 | else /* We have storage, but need to reset it. */ |
c906108c SS |
354 | { |
355 | ntype = *typeptr; | |
053cb41b | 356 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 357 | smash_type (ntype); |
053cb41b | 358 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
359 | } |
360 | ||
361 | TYPE_TARGET_TYPE (ntype) = type; | |
362 | TYPE_POINTER_TYPE (type) = ntype; | |
363 | ||
5212577a | 364 | /* FIXME! Assumes the machine has only one representation for pointers! */ |
c906108c | 365 | |
50810684 UW |
366 | TYPE_LENGTH (ntype) |
367 | = gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c SS |
368 | TYPE_CODE (ntype) = TYPE_CODE_PTR; |
369 | ||
67b2adb2 | 370 | /* Mark pointers as unsigned. The target converts between pointers |
76e71323 | 371 | and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and |
7ba81444 | 372 | gdbarch_address_to_pointer. */ |
876cecd0 | 373 | TYPE_UNSIGNED (ntype) = 1; |
c5aa993b | 374 | |
053cb41b JB |
375 | /* Update the length of all the other variants of this type. */ |
376 | chain = TYPE_CHAIN (ntype); | |
377 | while (chain != ntype) | |
378 | { | |
379 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
380 | chain = TYPE_CHAIN (chain); | |
381 | } | |
382 | ||
c906108c SS |
383 | return ntype; |
384 | } | |
385 | ||
386 | /* Given a type TYPE, return a type of pointers to that type. | |
387 | May need to construct such a type if this is the first use. */ | |
388 | ||
389 | struct type * | |
fba45db2 | 390 | lookup_pointer_type (struct type *type) |
c906108c | 391 | { |
c5aa993b | 392 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
393 | } |
394 | ||
7ba81444 MS |
395 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, |
396 | points to a pointer to memory where the reference type should be | |
397 | stored. If *TYPEPTR is zero, update it to point to the reference | |
3b224330 AV |
398 | type we return. We allocate new memory if needed. REFCODE denotes |
399 | the kind of reference type to lookup (lvalue or rvalue reference). */ | |
c906108c SS |
400 | |
401 | struct type * | |
3b224330 AV |
402 | make_reference_type (struct type *type, struct type **typeptr, |
403 | enum type_code refcode) | |
c906108c | 404 | { |
52f0bd74 | 405 | struct type *ntype; /* New type */ |
3b224330 | 406 | struct type **reftype; |
1e98b326 | 407 | struct type *chain; |
c906108c | 408 | |
3b224330 AV |
409 | gdb_assert (refcode == TYPE_CODE_REF || refcode == TYPE_CODE_RVALUE_REF); |
410 | ||
411 | ntype = (refcode == TYPE_CODE_REF ? TYPE_REFERENCE_TYPE (type) | |
412 | : TYPE_RVALUE_REFERENCE_TYPE (type)); | |
c906108c | 413 | |
c5aa993b | 414 | if (ntype) |
c906108c | 415 | { |
c5aa993b | 416 | if (typeptr == 0) |
7ba81444 MS |
417 | return ntype; /* Don't care about alloc, |
418 | and have new type. */ | |
c906108c | 419 | else if (*typeptr == 0) |
c5aa993b | 420 | { |
7ba81444 | 421 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 422 | return ntype; |
c5aa993b | 423 | } |
c906108c SS |
424 | } |
425 | ||
426 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
427 | { | |
e9bb382b | 428 | ntype = alloc_type_copy (type); |
c906108c SS |
429 | if (typeptr) |
430 | *typeptr = ntype; | |
431 | } | |
7ba81444 | 432 | else /* We have storage, but need to reset it. */ |
c906108c SS |
433 | { |
434 | ntype = *typeptr; | |
1e98b326 | 435 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 436 | smash_type (ntype); |
1e98b326 | 437 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
438 | } |
439 | ||
440 | TYPE_TARGET_TYPE (ntype) = type; | |
3b224330 AV |
441 | reftype = (refcode == TYPE_CODE_REF ? &TYPE_REFERENCE_TYPE (type) |
442 | : &TYPE_RVALUE_REFERENCE_TYPE (type)); | |
443 | ||
444 | *reftype = ntype; | |
c906108c | 445 | |
7ba81444 MS |
446 | /* FIXME! Assume the machine has only one representation for |
447 | references, and that it matches the (only) representation for | |
448 | pointers! */ | |
c906108c | 449 | |
50810684 UW |
450 | TYPE_LENGTH (ntype) = |
451 | gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
3b224330 | 452 | TYPE_CODE (ntype) = refcode; |
c5aa993b | 453 | |
3b224330 | 454 | *reftype = ntype; |
c906108c | 455 | |
1e98b326 JB |
456 | /* Update the length of all the other variants of this type. */ |
457 | chain = TYPE_CHAIN (ntype); | |
458 | while (chain != ntype) | |
459 | { | |
460 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
461 | chain = TYPE_CHAIN (chain); | |
462 | } | |
463 | ||
c906108c SS |
464 | return ntype; |
465 | } | |
466 | ||
7ba81444 MS |
467 | /* Same as above, but caller doesn't care about memory allocation |
468 | details. */ | |
c906108c SS |
469 | |
470 | struct type * | |
3b224330 AV |
471 | lookup_reference_type (struct type *type, enum type_code refcode) |
472 | { | |
473 | return make_reference_type (type, (struct type **) 0, refcode); | |
474 | } | |
475 | ||
476 | /* Lookup the lvalue reference type for the type TYPE. */ | |
477 | ||
478 | struct type * | |
479 | lookup_lvalue_reference_type (struct type *type) | |
480 | { | |
481 | return lookup_reference_type (type, TYPE_CODE_REF); | |
482 | } | |
483 | ||
484 | /* Lookup the rvalue reference type for the type TYPE. */ | |
485 | ||
486 | struct type * | |
487 | lookup_rvalue_reference_type (struct type *type) | |
c906108c | 488 | { |
3b224330 | 489 | return lookup_reference_type (type, TYPE_CODE_RVALUE_REF); |
c906108c SS |
490 | } |
491 | ||
7ba81444 MS |
492 | /* Lookup a function type that returns type TYPE. TYPEPTR, if |
493 | nonzero, points to a pointer to memory where the function type | |
494 | should be stored. If *TYPEPTR is zero, update it to point to the | |
0c8b41f1 | 495 | function type we return. We allocate new memory if needed. */ |
c906108c SS |
496 | |
497 | struct type * | |
0c8b41f1 | 498 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 499 | { |
52f0bd74 | 500 | struct type *ntype; /* New type */ |
c906108c SS |
501 | |
502 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
503 | { | |
e9bb382b | 504 | ntype = alloc_type_copy (type); |
c906108c SS |
505 | if (typeptr) |
506 | *typeptr = ntype; | |
507 | } | |
7ba81444 | 508 | else /* We have storage, but need to reset it. */ |
c906108c SS |
509 | { |
510 | ntype = *typeptr; | |
2fdde8f8 | 511 | smash_type (ntype); |
c906108c SS |
512 | } |
513 | ||
514 | TYPE_TARGET_TYPE (ntype) = type; | |
515 | ||
516 | TYPE_LENGTH (ntype) = 1; | |
517 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
c5aa993b | 518 | |
b6cdc2c1 JK |
519 | INIT_FUNC_SPECIFIC (ntype); |
520 | ||
c906108c SS |
521 | return ntype; |
522 | } | |
523 | ||
c906108c SS |
524 | /* Given a type TYPE, return a type of functions that return that type. |
525 | May need to construct such a type if this is the first use. */ | |
526 | ||
527 | struct type * | |
fba45db2 | 528 | lookup_function_type (struct type *type) |
c906108c | 529 | { |
0c8b41f1 | 530 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
531 | } |
532 | ||
71918a86 | 533 | /* Given a type TYPE and argument types, return the appropriate |
a6fb9c08 TT |
534 | function type. If the final type in PARAM_TYPES is NULL, make a |
535 | varargs function. */ | |
71918a86 TT |
536 | |
537 | struct type * | |
538 | lookup_function_type_with_arguments (struct type *type, | |
539 | int nparams, | |
540 | struct type **param_types) | |
541 | { | |
542 | struct type *fn = make_function_type (type, (struct type **) 0); | |
543 | int i; | |
544 | ||
e314d629 | 545 | if (nparams > 0) |
a6fb9c08 | 546 | { |
e314d629 TT |
547 | if (param_types[nparams - 1] == NULL) |
548 | { | |
549 | --nparams; | |
550 | TYPE_VARARGS (fn) = 1; | |
551 | } | |
552 | else if (TYPE_CODE (check_typedef (param_types[nparams - 1])) | |
553 | == TYPE_CODE_VOID) | |
554 | { | |
555 | --nparams; | |
556 | /* Caller should have ensured this. */ | |
557 | gdb_assert (nparams == 0); | |
558 | TYPE_PROTOTYPED (fn) = 1; | |
559 | } | |
54990598 PA |
560 | else |
561 | TYPE_PROTOTYPED (fn) = 1; | |
a6fb9c08 TT |
562 | } |
563 | ||
71918a86 | 564 | TYPE_NFIELDS (fn) = nparams; |
224c3ddb SM |
565 | TYPE_FIELDS (fn) |
566 | = (struct field *) TYPE_ZALLOC (fn, nparams * sizeof (struct field)); | |
71918a86 TT |
567 | for (i = 0; i < nparams; ++i) |
568 | TYPE_FIELD_TYPE (fn, i) = param_types[i]; | |
569 | ||
570 | return fn; | |
571 | } | |
572 | ||
47663de5 MS |
573 | /* Identify address space identifier by name -- |
574 | return the integer flag defined in gdbtypes.h. */ | |
5212577a DE |
575 | |
576 | int | |
61f4b350 TT |
577 | address_space_name_to_int (struct gdbarch *gdbarch, |
578 | const char *space_identifier) | |
47663de5 | 579 | { |
8b2dbe47 | 580 | int type_flags; |
d8734c88 | 581 | |
7ba81444 | 582 | /* Check for known address space delimiters. */ |
47663de5 | 583 | if (!strcmp (space_identifier, "code")) |
876cecd0 | 584 | return TYPE_INSTANCE_FLAG_CODE_SPACE; |
47663de5 | 585 | else if (!strcmp (space_identifier, "data")) |
876cecd0 | 586 | return TYPE_INSTANCE_FLAG_DATA_SPACE; |
5f11f355 AC |
587 | else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
588 | && gdbarch_address_class_name_to_type_flags (gdbarch, | |
589 | space_identifier, | |
590 | &type_flags)) | |
8b2dbe47 | 591 | return type_flags; |
47663de5 | 592 | else |
8a3fe4f8 | 593 | error (_("Unknown address space specifier: \"%s\""), space_identifier); |
47663de5 MS |
594 | } |
595 | ||
596 | /* Identify address space identifier by integer flag as defined in | |
7ba81444 | 597 | gdbtypes.h -- return the string version of the adress space name. */ |
47663de5 | 598 | |
321432c0 | 599 | const char * |
50810684 | 600 | address_space_int_to_name (struct gdbarch *gdbarch, int space_flag) |
47663de5 | 601 | { |
876cecd0 | 602 | if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE) |
47663de5 | 603 | return "code"; |
876cecd0 | 604 | else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE) |
47663de5 | 605 | return "data"; |
876cecd0 | 606 | else if ((space_flag & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) |
5f11f355 AC |
607 | && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
608 | return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); | |
47663de5 MS |
609 | else |
610 | return NULL; | |
611 | } | |
612 | ||
2fdde8f8 | 613 | /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
ad766c0a JB |
614 | |
615 | If STORAGE is non-NULL, create the new type instance there. | |
616 | STORAGE must be in the same obstack as TYPE. */ | |
47663de5 | 617 | |
b9362cc7 | 618 | static struct type * |
2fdde8f8 DJ |
619 | make_qualified_type (struct type *type, int new_flags, |
620 | struct type *storage) | |
47663de5 MS |
621 | { |
622 | struct type *ntype; | |
623 | ||
624 | ntype = type; | |
5f61c20e JK |
625 | do |
626 | { | |
627 | if (TYPE_INSTANCE_FLAGS (ntype) == new_flags) | |
628 | return ntype; | |
629 | ntype = TYPE_CHAIN (ntype); | |
630 | } | |
631 | while (ntype != type); | |
47663de5 | 632 | |
2fdde8f8 DJ |
633 | /* Create a new type instance. */ |
634 | if (storage == NULL) | |
635 | ntype = alloc_type_instance (type); | |
636 | else | |
637 | { | |
7ba81444 MS |
638 | /* If STORAGE was provided, it had better be in the same objfile |
639 | as TYPE. Otherwise, we can't link it into TYPE's cv chain: | |
640 | if one objfile is freed and the other kept, we'd have | |
641 | dangling pointers. */ | |
ad766c0a JB |
642 | gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage)); |
643 | ||
2fdde8f8 DJ |
644 | ntype = storage; |
645 | TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); | |
646 | TYPE_CHAIN (ntype) = ntype; | |
647 | } | |
47663de5 MS |
648 | |
649 | /* Pointers or references to the original type are not relevant to | |
2fdde8f8 | 650 | the new type. */ |
47663de5 MS |
651 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
652 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
47663de5 | 653 | |
2fdde8f8 DJ |
654 | /* Chain the new qualified type to the old type. */ |
655 | TYPE_CHAIN (ntype) = TYPE_CHAIN (type); | |
656 | TYPE_CHAIN (type) = ntype; | |
657 | ||
658 | /* Now set the instance flags and return the new type. */ | |
659 | TYPE_INSTANCE_FLAGS (ntype) = new_flags; | |
47663de5 | 660 | |
ab5d3da6 KB |
661 | /* Set length of new type to that of the original type. */ |
662 | TYPE_LENGTH (ntype) = TYPE_LENGTH (type); | |
663 | ||
47663de5 MS |
664 | return ntype; |
665 | } | |
666 | ||
2fdde8f8 DJ |
667 | /* Make an address-space-delimited variant of a type -- a type that |
668 | is identical to the one supplied except that it has an address | |
669 | space attribute attached to it (such as "code" or "data"). | |
670 | ||
7ba81444 MS |
671 | The space attributes "code" and "data" are for Harvard |
672 | architectures. The address space attributes are for architectures | |
673 | which have alternately sized pointers or pointers with alternate | |
674 | representations. */ | |
2fdde8f8 DJ |
675 | |
676 | struct type * | |
677 | make_type_with_address_space (struct type *type, int space_flag) | |
678 | { | |
2fdde8f8 | 679 | int new_flags = ((TYPE_INSTANCE_FLAGS (type) |
876cecd0 TT |
680 | & ~(TYPE_INSTANCE_FLAG_CODE_SPACE |
681 | | TYPE_INSTANCE_FLAG_DATA_SPACE | |
682 | | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)) | |
2fdde8f8 DJ |
683 | | space_flag); |
684 | ||
685 | return make_qualified_type (type, new_flags, NULL); | |
686 | } | |
c906108c SS |
687 | |
688 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
689 | one supplied except that it may have const or volatile attributes | |
690 | CNST is a flag for setting the const attribute | |
691 | VOLTL is a flag for setting the volatile attribute | |
692 | TYPE is the base type whose variant we are creating. | |
c906108c | 693 | |
ad766c0a JB |
694 | If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to |
695 | storage to hold the new qualified type; *TYPEPTR and TYPE must be | |
696 | in the same objfile. Otherwise, allocate fresh memory for the new | |
697 | type whereever TYPE lives. If TYPEPTR is non-zero, set it to the | |
698 | new type we construct. */ | |
5212577a | 699 | |
c906108c | 700 | struct type * |
7ba81444 MS |
701 | make_cv_type (int cnst, int voltl, |
702 | struct type *type, | |
703 | struct type **typeptr) | |
c906108c | 704 | { |
52f0bd74 | 705 | struct type *ntype; /* New type */ |
c906108c | 706 | |
2fdde8f8 | 707 | int new_flags = (TYPE_INSTANCE_FLAGS (type) |
308d96ed MS |
708 | & ~(TYPE_INSTANCE_FLAG_CONST |
709 | | TYPE_INSTANCE_FLAG_VOLATILE)); | |
c906108c | 710 | |
c906108c | 711 | if (cnst) |
876cecd0 | 712 | new_flags |= TYPE_INSTANCE_FLAG_CONST; |
c906108c SS |
713 | |
714 | if (voltl) | |
876cecd0 | 715 | new_flags |= TYPE_INSTANCE_FLAG_VOLATILE; |
a02fd225 | 716 | |
2fdde8f8 | 717 | if (typeptr && *typeptr != NULL) |
a02fd225 | 718 | { |
ad766c0a JB |
719 | /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
720 | a C-V variant chain that threads across objfiles: if one | |
721 | objfile gets freed, then the other has a broken C-V chain. | |
722 | ||
723 | This code used to try to copy over the main type from TYPE to | |
724 | *TYPEPTR if they were in different objfiles, but that's | |
725 | wrong, too: TYPE may have a field list or member function | |
726 | lists, which refer to types of their own, etc. etc. The | |
727 | whole shebang would need to be copied over recursively; you | |
728 | can't have inter-objfile pointers. The only thing to do is | |
729 | to leave stub types as stub types, and look them up afresh by | |
730 | name each time you encounter them. */ | |
731 | gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type)); | |
2fdde8f8 DJ |
732 | } |
733 | ||
7ba81444 MS |
734 | ntype = make_qualified_type (type, new_flags, |
735 | typeptr ? *typeptr : NULL); | |
c906108c | 736 | |
2fdde8f8 DJ |
737 | if (typeptr != NULL) |
738 | *typeptr = ntype; | |
a02fd225 | 739 | |
2fdde8f8 | 740 | return ntype; |
a02fd225 | 741 | } |
c906108c | 742 | |
06d66ee9 TT |
743 | /* Make a 'restrict'-qualified version of TYPE. */ |
744 | ||
745 | struct type * | |
746 | make_restrict_type (struct type *type) | |
747 | { | |
748 | return make_qualified_type (type, | |
749 | (TYPE_INSTANCE_FLAGS (type) | |
750 | | TYPE_INSTANCE_FLAG_RESTRICT), | |
751 | NULL); | |
752 | } | |
753 | ||
f1660027 TT |
754 | /* Make a type without const, volatile, or restrict. */ |
755 | ||
756 | struct type * | |
757 | make_unqualified_type (struct type *type) | |
758 | { | |
759 | return make_qualified_type (type, | |
760 | (TYPE_INSTANCE_FLAGS (type) | |
761 | & ~(TYPE_INSTANCE_FLAG_CONST | |
762 | | TYPE_INSTANCE_FLAG_VOLATILE | |
763 | | TYPE_INSTANCE_FLAG_RESTRICT)), | |
764 | NULL); | |
765 | } | |
766 | ||
a2c2acaf MW |
767 | /* Make a '_Atomic'-qualified version of TYPE. */ |
768 | ||
769 | struct type * | |
770 | make_atomic_type (struct type *type) | |
771 | { | |
772 | return make_qualified_type (type, | |
773 | (TYPE_INSTANCE_FLAGS (type) | |
774 | | TYPE_INSTANCE_FLAG_ATOMIC), | |
775 | NULL); | |
776 | } | |
777 | ||
2fdde8f8 DJ |
778 | /* Replace the contents of ntype with the type *type. This changes the |
779 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
780 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 781 | |
cda6c68a JB |
782 | In order to build recursive types, it's inevitable that we'll need |
783 | to update types in place --- but this sort of indiscriminate | |
784 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
785 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
786 | clear if more steps are needed. */ | |
5212577a | 787 | |
dd6bda65 DJ |
788 | void |
789 | replace_type (struct type *ntype, struct type *type) | |
790 | { | |
ab5d3da6 | 791 | struct type *chain; |
dd6bda65 | 792 | |
ad766c0a JB |
793 | /* These two types had better be in the same objfile. Otherwise, |
794 | the assignment of one type's main type structure to the other | |
795 | will produce a type with references to objects (names; field | |
796 | lists; etc.) allocated on an objfile other than its own. */ | |
e46dd0f4 | 797 | gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (type)); |
ad766c0a | 798 | |
2fdde8f8 | 799 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 800 | |
7ba81444 MS |
801 | /* The type length is not a part of the main type. Update it for |
802 | each type on the variant chain. */ | |
ab5d3da6 | 803 | chain = ntype; |
5f61c20e JK |
804 | do |
805 | { | |
806 | /* Assert that this element of the chain has no address-class bits | |
807 | set in its flags. Such type variants might have type lengths | |
808 | which are supposed to be different from the non-address-class | |
809 | variants. This assertion shouldn't ever be triggered because | |
810 | symbol readers which do construct address-class variants don't | |
811 | call replace_type(). */ | |
812 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
813 | ||
814 | TYPE_LENGTH (chain) = TYPE_LENGTH (type); | |
815 | chain = TYPE_CHAIN (chain); | |
816 | } | |
817 | while (ntype != chain); | |
ab5d3da6 | 818 | |
2fdde8f8 DJ |
819 | /* Assert that the two types have equivalent instance qualifiers. |
820 | This should be true for at least all of our debug readers. */ | |
821 | gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type)); | |
dd6bda65 DJ |
822 | } |
823 | ||
c906108c SS |
824 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
825 | May need to construct such a type if this is the first use. | |
826 | The TYPE is the type of the member. The DOMAIN is the type | |
827 | of the aggregate that the member belongs to. */ | |
828 | ||
829 | struct type * | |
0d5de010 | 830 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 831 | { |
52f0bd74 | 832 | struct type *mtype; |
c906108c | 833 | |
e9bb382b | 834 | mtype = alloc_type_copy (type); |
0d5de010 | 835 | smash_to_memberptr_type (mtype, domain, type); |
c16abbde | 836 | return mtype; |
c906108c SS |
837 | } |
838 | ||
0d5de010 DJ |
839 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
840 | ||
841 | struct type * | |
842 | lookup_methodptr_type (struct type *to_type) | |
843 | { | |
844 | struct type *mtype; | |
845 | ||
e9bb382b | 846 | mtype = alloc_type_copy (to_type); |
0b92b5bb | 847 | smash_to_methodptr_type (mtype, to_type); |
0d5de010 DJ |
848 | return mtype; |
849 | } | |
850 | ||
7ba81444 MS |
851 | /* Allocate a stub method whose return type is TYPE. This apparently |
852 | happens for speed of symbol reading, since parsing out the | |
853 | arguments to the method is cpu-intensive, the way we are doing it. | |
854 | So, we will fill in arguments later. This always returns a fresh | |
855 | type. */ | |
c906108c SS |
856 | |
857 | struct type * | |
fba45db2 | 858 | allocate_stub_method (struct type *type) |
c906108c SS |
859 | { |
860 | struct type *mtype; | |
861 | ||
e9bb382b UW |
862 | mtype = alloc_type_copy (type); |
863 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; | |
864 | TYPE_LENGTH (mtype) = 1; | |
865 | TYPE_STUB (mtype) = 1; | |
c906108c | 866 | TYPE_TARGET_TYPE (mtype) = type; |
4bfb94b8 | 867 | /* TYPE_SELF_TYPE (mtype) = unknown yet */ |
c16abbde | 868 | return mtype; |
c906108c SS |
869 | } |
870 | ||
0f59d5fc PA |
871 | /* See gdbtypes.h. */ |
872 | ||
873 | bool | |
874 | operator== (const dynamic_prop &l, const dynamic_prop &r) | |
875 | { | |
876 | if (l.kind != r.kind) | |
877 | return false; | |
878 | ||
879 | switch (l.kind) | |
880 | { | |
881 | case PROP_UNDEFINED: | |
882 | return true; | |
883 | case PROP_CONST: | |
884 | return l.data.const_val == r.data.const_val; | |
885 | case PROP_ADDR_OFFSET: | |
886 | case PROP_LOCEXPR: | |
887 | case PROP_LOCLIST: | |
888 | return l.data.baton == r.data.baton; | |
889 | } | |
890 | ||
891 | gdb_assert_not_reached ("unhandled dynamic_prop kind"); | |
892 | } | |
893 | ||
894 | /* See gdbtypes.h. */ | |
895 | ||
896 | bool | |
897 | operator== (const range_bounds &l, const range_bounds &r) | |
898 | { | |
899 | #define FIELD_EQ(FIELD) (l.FIELD == r.FIELD) | |
900 | ||
901 | return (FIELD_EQ (low) | |
902 | && FIELD_EQ (high) | |
903 | && FIELD_EQ (flag_upper_bound_is_count) | |
904 | && FIELD_EQ (flag_bound_evaluated)); | |
905 | ||
906 | #undef FIELD_EQ | |
907 | } | |
908 | ||
729efb13 SA |
909 | /* Create a range type with a dynamic range from LOW_BOUND to |
910 | HIGH_BOUND, inclusive. See create_range_type for further details. */ | |
c906108c SS |
911 | |
912 | struct type * | |
729efb13 SA |
913 | create_range_type (struct type *result_type, struct type *index_type, |
914 | const struct dynamic_prop *low_bound, | |
915 | const struct dynamic_prop *high_bound) | |
c906108c SS |
916 | { |
917 | if (result_type == NULL) | |
e9bb382b | 918 | result_type = alloc_type_copy (index_type); |
c906108c SS |
919 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; |
920 | TYPE_TARGET_TYPE (result_type) = index_type; | |
74a9bb82 | 921 | if (TYPE_STUB (index_type)) |
876cecd0 | 922 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c SS |
923 | else |
924 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
729efb13 | 925 | |
43bbcdc2 PH |
926 | TYPE_RANGE_DATA (result_type) = (struct range_bounds *) |
927 | TYPE_ZALLOC (result_type, sizeof (struct range_bounds)); | |
729efb13 SA |
928 | TYPE_RANGE_DATA (result_type)->low = *low_bound; |
929 | TYPE_RANGE_DATA (result_type)->high = *high_bound; | |
c906108c | 930 | |
729efb13 | 931 | if (low_bound->kind == PROP_CONST && low_bound->data.const_val >= 0) |
876cecd0 | 932 | TYPE_UNSIGNED (result_type) = 1; |
c906108c | 933 | |
45e44d27 JB |
934 | /* Ada allows the declaration of range types whose upper bound is |
935 | less than the lower bound, so checking the lower bound is not | |
936 | enough. Make sure we do not mark a range type whose upper bound | |
937 | is negative as unsigned. */ | |
938 | if (high_bound->kind == PROP_CONST && high_bound->data.const_val < 0) | |
939 | TYPE_UNSIGNED (result_type) = 0; | |
940 | ||
262452ec | 941 | return result_type; |
c906108c SS |
942 | } |
943 | ||
729efb13 SA |
944 | /* Create a range type using either a blank type supplied in |
945 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
946 | INDEX_TYPE. | |
947 | ||
948 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND | |
949 | to HIGH_BOUND, inclusive. | |
950 | ||
951 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
952 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
953 | ||
954 | struct type * | |
955 | create_static_range_type (struct type *result_type, struct type *index_type, | |
956 | LONGEST low_bound, LONGEST high_bound) | |
957 | { | |
958 | struct dynamic_prop low, high; | |
959 | ||
960 | low.kind = PROP_CONST; | |
961 | low.data.const_val = low_bound; | |
962 | ||
963 | high.kind = PROP_CONST; | |
964 | high.data.const_val = high_bound; | |
965 | ||
966 | result_type = create_range_type (result_type, index_type, &low, &high); | |
967 | ||
968 | return result_type; | |
969 | } | |
970 | ||
80180f79 SA |
971 | /* Predicate tests whether BOUNDS are static. Returns 1 if all bounds values |
972 | are static, otherwise returns 0. */ | |
973 | ||
974 | static int | |
975 | has_static_range (const struct range_bounds *bounds) | |
976 | { | |
977 | return (bounds->low.kind == PROP_CONST | |
978 | && bounds->high.kind == PROP_CONST); | |
979 | } | |
980 | ||
981 | ||
7ba81444 MS |
982 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
983 | TYPE. Return 1 if type is a range type, 0 if it is discrete (and | |
984 | bounds will fit in LONGEST), or -1 otherwise. */ | |
c906108c SS |
985 | |
986 | int | |
fba45db2 | 987 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c | 988 | { |
f168693b | 989 | type = check_typedef (type); |
c906108c SS |
990 | switch (TYPE_CODE (type)) |
991 | { | |
992 | case TYPE_CODE_RANGE: | |
993 | *lowp = TYPE_LOW_BOUND (type); | |
994 | *highp = TYPE_HIGH_BOUND (type); | |
995 | return 1; | |
996 | case TYPE_CODE_ENUM: | |
997 | if (TYPE_NFIELDS (type) > 0) | |
998 | { | |
999 | /* The enums may not be sorted by value, so search all | |
0963b4bd | 1000 | entries. */ |
c906108c SS |
1001 | int i; |
1002 | ||
14e75d8e | 1003 | *lowp = *highp = TYPE_FIELD_ENUMVAL (type, 0); |
c906108c SS |
1004 | for (i = 0; i < TYPE_NFIELDS (type); i++) |
1005 | { | |
14e75d8e JK |
1006 | if (TYPE_FIELD_ENUMVAL (type, i) < *lowp) |
1007 | *lowp = TYPE_FIELD_ENUMVAL (type, i); | |
1008 | if (TYPE_FIELD_ENUMVAL (type, i) > *highp) | |
1009 | *highp = TYPE_FIELD_ENUMVAL (type, i); | |
c906108c SS |
1010 | } |
1011 | ||
7ba81444 | 1012 | /* Set unsigned indicator if warranted. */ |
c5aa993b | 1013 | if (*lowp >= 0) |
c906108c | 1014 | { |
876cecd0 | 1015 | TYPE_UNSIGNED (type) = 1; |
c906108c SS |
1016 | } |
1017 | } | |
1018 | else | |
1019 | { | |
1020 | *lowp = 0; | |
1021 | *highp = -1; | |
1022 | } | |
1023 | return 0; | |
1024 | case TYPE_CODE_BOOL: | |
1025 | *lowp = 0; | |
1026 | *highp = 1; | |
1027 | return 0; | |
1028 | case TYPE_CODE_INT: | |
c5aa993b | 1029 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
1030 | return -1; |
1031 | if (!TYPE_UNSIGNED (type)) | |
1032 | { | |
c5aa993b | 1033 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
1034 | *highp = -*lowp - 1; |
1035 | return 0; | |
1036 | } | |
86a73007 | 1037 | /* fall through */ |
c906108c SS |
1038 | case TYPE_CODE_CHAR: |
1039 | *lowp = 0; | |
1040 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 | 1041 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
7ba81444 | 1042 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
c906108c SS |
1043 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
1044 | *highp = (*highp - 1) | *highp; | |
1045 | return 0; | |
1046 | default: | |
1047 | return -1; | |
1048 | } | |
1049 | } | |
1050 | ||
dbc98a8b KW |
1051 | /* Assuming TYPE is a simple, non-empty array type, compute its upper |
1052 | and lower bound. Save the low bound into LOW_BOUND if not NULL. | |
1053 | Save the high bound into HIGH_BOUND if not NULL. | |
1054 | ||
0963b4bd | 1055 | Return 1 if the operation was successful. Return zero otherwise, |
dbc98a8b KW |
1056 | in which case the values of LOW_BOUND and HIGH_BOUNDS are unmodified. |
1057 | ||
1058 | We now simply use get_discrete_bounds call to get the values | |
1059 | of the low and high bounds. | |
1060 | get_discrete_bounds can return three values: | |
1061 | 1, meaning that index is a range, | |
1062 | 0, meaning that index is a discrete type, | |
1063 | or -1 for failure. */ | |
1064 | ||
1065 | int | |
1066 | get_array_bounds (struct type *type, LONGEST *low_bound, LONGEST *high_bound) | |
1067 | { | |
1068 | struct type *index = TYPE_INDEX_TYPE (type); | |
1069 | LONGEST low = 0; | |
1070 | LONGEST high = 0; | |
1071 | int res; | |
1072 | ||
1073 | if (index == NULL) | |
1074 | return 0; | |
1075 | ||
1076 | res = get_discrete_bounds (index, &low, &high); | |
1077 | if (res == -1) | |
1078 | return 0; | |
1079 | ||
1080 | /* Check if the array bounds are undefined. */ | |
1081 | if (res == 1 | |
1082 | && ((low_bound && TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED (type)) | |
1083 | || (high_bound && TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type)))) | |
1084 | return 0; | |
1085 | ||
1086 | if (low_bound) | |
1087 | *low_bound = low; | |
1088 | ||
1089 | if (high_bound) | |
1090 | *high_bound = high; | |
1091 | ||
1092 | return 1; | |
1093 | } | |
1094 | ||
aa715135 JG |
1095 | /* Assuming that TYPE is a discrete type and VAL is a valid integer |
1096 | representation of a value of this type, save the corresponding | |
1097 | position number in POS. | |
1098 | ||
1099 | Its differs from VAL only in the case of enumeration types. In | |
1100 | this case, the position number of the value of the first listed | |
1101 | enumeration literal is zero; the position number of the value of | |
1102 | each subsequent enumeration literal is one more than that of its | |
1103 | predecessor in the list. | |
1104 | ||
1105 | Return 1 if the operation was successful. Return zero otherwise, | |
1106 | in which case the value of POS is unmodified. | |
1107 | */ | |
1108 | ||
1109 | int | |
1110 | discrete_position (struct type *type, LONGEST val, LONGEST *pos) | |
1111 | { | |
1112 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) | |
1113 | { | |
1114 | int i; | |
1115 | ||
1116 | for (i = 0; i < TYPE_NFIELDS (type); i += 1) | |
1117 | { | |
1118 | if (val == TYPE_FIELD_ENUMVAL (type, i)) | |
1119 | { | |
1120 | *pos = i; | |
1121 | return 1; | |
1122 | } | |
1123 | } | |
1124 | /* Invalid enumeration value. */ | |
1125 | return 0; | |
1126 | } | |
1127 | else | |
1128 | { | |
1129 | *pos = val; | |
1130 | return 1; | |
1131 | } | |
1132 | } | |
1133 | ||
7ba81444 MS |
1134 | /* Create an array type using either a blank type supplied in |
1135 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
1136 | RANGE_TYPE. | |
c906108c SS |
1137 | |
1138 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
1139 | RANGE_TYPE. | |
1140 | ||
a405673c JB |
1141 | BYTE_STRIDE_PROP, when not NULL, provides the array's byte stride. |
1142 | This byte stride property is added to the resulting array type | |
1143 | as a DYN_PROP_BYTE_STRIDE. As a consequence, the BYTE_STRIDE_PROP | |
1144 | argument can only be used to create types that are objfile-owned | |
1145 | (see add_dyn_prop), meaning that either this function must be called | |
1146 | with an objfile-owned RESULT_TYPE, or an objfile-owned RANGE_TYPE. | |
1147 | ||
1148 | BIT_STRIDE is taken into account only when BYTE_STRIDE_PROP is NULL. | |
dc53a7ad JB |
1149 | If BIT_STRIDE is not zero, build a packed array type whose element |
1150 | size is BIT_STRIDE. Otherwise, ignore this parameter. | |
1151 | ||
7ba81444 MS |
1152 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1153 | sure it is TYPE_CODE_UNDEF before we bash it into an array | |
1154 | type? */ | |
c906108c SS |
1155 | |
1156 | struct type * | |
dc53a7ad JB |
1157 | create_array_type_with_stride (struct type *result_type, |
1158 | struct type *element_type, | |
1159 | struct type *range_type, | |
a405673c | 1160 | struct dynamic_prop *byte_stride_prop, |
dc53a7ad | 1161 | unsigned int bit_stride) |
c906108c | 1162 | { |
a405673c JB |
1163 | if (byte_stride_prop != NULL |
1164 | && byte_stride_prop->kind == PROP_CONST) | |
1165 | { | |
1166 | /* The byte stride is actually not dynamic. Pretend we were | |
1167 | called with bit_stride set instead of byte_stride_prop. | |
1168 | This will give us the same result type, while avoiding | |
1169 | the need to handle this as a special case. */ | |
1170 | bit_stride = byte_stride_prop->data.const_val * 8; | |
1171 | byte_stride_prop = NULL; | |
1172 | } | |
1173 | ||
c906108c | 1174 | if (result_type == NULL) |
e9bb382b UW |
1175 | result_type = alloc_type_copy (range_type); |
1176 | ||
c906108c SS |
1177 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
1178 | TYPE_TARGET_TYPE (result_type) = element_type; | |
a405673c JB |
1179 | if (byte_stride_prop == NULL |
1180 | && has_static_range (TYPE_RANGE_DATA (range_type)) | |
b4a7fcab JB |
1181 | && (!type_not_associated (result_type) |
1182 | && !type_not_allocated (result_type))) | |
80180f79 SA |
1183 | { |
1184 | LONGEST low_bound, high_bound; | |
1185 | ||
1186 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
1187 | low_bound = high_bound = 0; | |
f168693b | 1188 | element_type = check_typedef (element_type); |
80180f79 SA |
1189 | /* Be careful when setting the array length. Ada arrays can be |
1190 | empty arrays with the high_bound being smaller than the low_bound. | |
1191 | In such cases, the array length should be zero. */ | |
1192 | if (high_bound < low_bound) | |
1193 | TYPE_LENGTH (result_type) = 0; | |
1194 | else if (bit_stride > 0) | |
1195 | TYPE_LENGTH (result_type) = | |
1196 | (bit_stride * (high_bound - low_bound + 1) + 7) / 8; | |
1197 | else | |
1198 | TYPE_LENGTH (result_type) = | |
1199 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
1200 | } | |
ab0d6e0d | 1201 | else |
80180f79 SA |
1202 | { |
1203 | /* This type is dynamic and its length needs to be computed | |
1204 | on demand. In the meantime, avoid leaving the TYPE_LENGTH | |
1205 | undefined by setting it to zero. Although we are not expected | |
1206 | to trust TYPE_LENGTH in this case, setting the size to zero | |
1207 | allows us to avoid allocating objects of random sizes in case | |
1208 | we accidently do. */ | |
1209 | TYPE_LENGTH (result_type) = 0; | |
1210 | } | |
1211 | ||
c906108c SS |
1212 | TYPE_NFIELDS (result_type) = 1; |
1213 | TYPE_FIELDS (result_type) = | |
1deafd4e | 1214 | (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); |
262452ec | 1215 | TYPE_INDEX_TYPE (result_type) = range_type; |
a405673c | 1216 | if (byte_stride_prop != NULL) |
50a82047 | 1217 | add_dyn_prop (DYN_PROP_BYTE_STRIDE, *byte_stride_prop, result_type); |
a405673c | 1218 | else if (bit_stride > 0) |
dc53a7ad | 1219 | TYPE_FIELD_BITSIZE (result_type, 0) = bit_stride; |
c906108c | 1220 | |
a9ff5f12 | 1221 | /* TYPE_TARGET_STUB will take care of zero length arrays. */ |
c906108c | 1222 | if (TYPE_LENGTH (result_type) == 0) |
876cecd0 | 1223 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c | 1224 | |
c16abbde | 1225 | return result_type; |
c906108c SS |
1226 | } |
1227 | ||
dc53a7ad JB |
1228 | /* Same as create_array_type_with_stride but with no bit_stride |
1229 | (BIT_STRIDE = 0), thus building an unpacked array. */ | |
1230 | ||
1231 | struct type * | |
1232 | create_array_type (struct type *result_type, | |
1233 | struct type *element_type, | |
1234 | struct type *range_type) | |
1235 | { | |
1236 | return create_array_type_with_stride (result_type, element_type, | |
a405673c | 1237 | range_type, NULL, 0); |
dc53a7ad JB |
1238 | } |
1239 | ||
e3506a9f UW |
1240 | struct type * |
1241 | lookup_array_range_type (struct type *element_type, | |
63375b74 | 1242 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f | 1243 | { |
929b5ad4 JB |
1244 | struct type *index_type; |
1245 | struct type *range_type; | |
1246 | ||
1247 | if (TYPE_OBJFILE_OWNED (element_type)) | |
1248 | index_type = objfile_type (TYPE_OWNER (element_type).objfile)->builtin_int; | |
1249 | else | |
1250 | index_type = builtin_type (get_type_arch (element_type))->builtin_int; | |
1251 | range_type = create_static_range_type (NULL, index_type, | |
1252 | low_bound, high_bound); | |
d8734c88 | 1253 | |
e3506a9f UW |
1254 | return create_array_type (NULL, element_type, range_type); |
1255 | } | |
1256 | ||
7ba81444 MS |
1257 | /* Create a string type using either a blank type supplied in |
1258 | RESULT_TYPE, or creating a new type. String types are similar | |
1259 | enough to array of char types that we can use create_array_type to | |
1260 | build the basic type and then bash it into a string type. | |
c906108c SS |
1261 | |
1262 | For fixed length strings, the range type contains 0 as the lower | |
1263 | bound and the length of the string minus one as the upper bound. | |
1264 | ||
7ba81444 MS |
1265 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1266 | sure it is TYPE_CODE_UNDEF before we bash it into a string | |
1267 | type? */ | |
c906108c SS |
1268 | |
1269 | struct type * | |
3b7538c0 UW |
1270 | create_string_type (struct type *result_type, |
1271 | struct type *string_char_type, | |
7ba81444 | 1272 | struct type *range_type) |
c906108c SS |
1273 | { |
1274 | result_type = create_array_type (result_type, | |
f290d38e | 1275 | string_char_type, |
c906108c SS |
1276 | range_type); |
1277 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
c16abbde | 1278 | return result_type; |
c906108c SS |
1279 | } |
1280 | ||
e3506a9f UW |
1281 | struct type * |
1282 | lookup_string_range_type (struct type *string_char_type, | |
63375b74 | 1283 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f UW |
1284 | { |
1285 | struct type *result_type; | |
d8734c88 | 1286 | |
e3506a9f UW |
1287 | result_type = lookup_array_range_type (string_char_type, |
1288 | low_bound, high_bound); | |
1289 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
1290 | return result_type; | |
1291 | } | |
1292 | ||
c906108c | 1293 | struct type * |
fba45db2 | 1294 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c | 1295 | { |
c906108c | 1296 | if (result_type == NULL) |
e9bb382b UW |
1297 | result_type = alloc_type_copy (domain_type); |
1298 | ||
c906108c SS |
1299 | TYPE_CODE (result_type) = TYPE_CODE_SET; |
1300 | TYPE_NFIELDS (result_type) = 1; | |
224c3ddb SM |
1301 | TYPE_FIELDS (result_type) |
1302 | = (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); | |
c906108c | 1303 | |
74a9bb82 | 1304 | if (!TYPE_STUB (domain_type)) |
c906108c | 1305 | { |
f9780d5b | 1306 | LONGEST low_bound, high_bound, bit_length; |
d8734c88 | 1307 | |
c906108c SS |
1308 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
1309 | low_bound = high_bound = 0; | |
1310 | bit_length = high_bound - low_bound + 1; | |
1311 | TYPE_LENGTH (result_type) | |
1312 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
f9780d5b | 1313 | if (low_bound >= 0) |
876cecd0 | 1314 | TYPE_UNSIGNED (result_type) = 1; |
c906108c SS |
1315 | } |
1316 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
1317 | ||
c16abbde | 1318 | return result_type; |
c906108c SS |
1319 | } |
1320 | ||
ea37ba09 DJ |
1321 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
1322 | and any array types nested inside it. */ | |
1323 | ||
1324 | void | |
1325 | make_vector_type (struct type *array_type) | |
1326 | { | |
1327 | struct type *inner_array, *elt_type; | |
1328 | int flags; | |
1329 | ||
1330 | /* Find the innermost array type, in case the array is | |
1331 | multi-dimensional. */ | |
1332 | inner_array = array_type; | |
1333 | while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY) | |
1334 | inner_array = TYPE_TARGET_TYPE (inner_array); | |
1335 | ||
1336 | elt_type = TYPE_TARGET_TYPE (inner_array); | |
1337 | if (TYPE_CODE (elt_type) == TYPE_CODE_INT) | |
1338 | { | |
2844d6b5 | 1339 | flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_INSTANCE_FLAG_NOTTEXT; |
ea37ba09 DJ |
1340 | elt_type = make_qualified_type (elt_type, flags, NULL); |
1341 | TYPE_TARGET_TYPE (inner_array) = elt_type; | |
1342 | } | |
1343 | ||
876cecd0 | 1344 | TYPE_VECTOR (array_type) = 1; |
ea37ba09 DJ |
1345 | } |
1346 | ||
794ac428 | 1347 | struct type * |
ac3aafc7 EZ |
1348 | init_vector_type (struct type *elt_type, int n) |
1349 | { | |
1350 | struct type *array_type; | |
d8734c88 | 1351 | |
e3506a9f | 1352 | array_type = lookup_array_range_type (elt_type, 0, n - 1); |
ea37ba09 | 1353 | make_vector_type (array_type); |
ac3aafc7 EZ |
1354 | return array_type; |
1355 | } | |
1356 | ||
09e2d7c7 DE |
1357 | /* Internal routine called by TYPE_SELF_TYPE to return the type that TYPE |
1358 | belongs to. In c++ this is the class of "this", but TYPE_THIS_TYPE is too | |
1359 | confusing. "self" is a common enough replacement for "this". | |
1360 | TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or | |
1361 | TYPE_CODE_METHOD. */ | |
1362 | ||
1363 | struct type * | |
1364 | internal_type_self_type (struct type *type) | |
1365 | { | |
1366 | switch (TYPE_CODE (type)) | |
1367 | { | |
1368 | case TYPE_CODE_METHODPTR: | |
1369 | case TYPE_CODE_MEMBERPTR: | |
eaaf76ab DE |
1370 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) |
1371 | return NULL; | |
09e2d7c7 DE |
1372 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE); |
1373 | return TYPE_MAIN_TYPE (type)->type_specific.self_type; | |
1374 | case TYPE_CODE_METHOD: | |
eaaf76ab DE |
1375 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) |
1376 | return NULL; | |
09e2d7c7 DE |
1377 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC); |
1378 | return TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type; | |
1379 | default: | |
1380 | gdb_assert_not_reached ("bad type"); | |
1381 | } | |
1382 | } | |
1383 | ||
1384 | /* Set the type of the class that TYPE belongs to. | |
1385 | In c++ this is the class of "this". | |
1386 | TYPE must be one of TYPE_CODE_METHODPTR, TYPE_CODE_MEMBERPTR, or | |
1387 | TYPE_CODE_METHOD. */ | |
1388 | ||
1389 | void | |
1390 | set_type_self_type (struct type *type, struct type *self_type) | |
1391 | { | |
1392 | switch (TYPE_CODE (type)) | |
1393 | { | |
1394 | case TYPE_CODE_METHODPTR: | |
1395 | case TYPE_CODE_MEMBERPTR: | |
1396 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) | |
1397 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_SELF_TYPE; | |
1398 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_SELF_TYPE); | |
1399 | TYPE_MAIN_TYPE (type)->type_specific.self_type = self_type; | |
1400 | break; | |
1401 | case TYPE_CODE_METHOD: | |
1402 | if (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_NONE) | |
1403 | INIT_FUNC_SPECIFIC (type); | |
1404 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC); | |
1405 | TYPE_MAIN_TYPE (type)->type_specific.func_stuff->self_type = self_type; | |
1406 | break; | |
1407 | default: | |
1408 | gdb_assert_not_reached ("bad type"); | |
1409 | } | |
1410 | } | |
1411 | ||
1412 | /* Smash TYPE to be a type of pointers to members of SELF_TYPE with type | |
0d5de010 DJ |
1413 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a |
1414 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
1415 | TYPE doesn't include the offset (that's the value of the MEMBER | |
1416 | itself), but does include the structure type into which it points | |
1417 | (for some reason). | |
c906108c | 1418 | |
7ba81444 MS |
1419 | When "smashing" the type, we preserve the objfile that the old type |
1420 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1421 | allocated. */ |
1422 | ||
1423 | void | |
09e2d7c7 | 1424 | smash_to_memberptr_type (struct type *type, struct type *self_type, |
0d5de010 | 1425 | struct type *to_type) |
c906108c | 1426 | { |
2fdde8f8 | 1427 | smash_type (type); |
09e2d7c7 | 1428 | TYPE_CODE (type) = TYPE_CODE_MEMBERPTR; |
c906108c | 1429 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1430 | set_type_self_type (type, self_type); |
0d5de010 DJ |
1431 | /* Assume that a data member pointer is the same size as a normal |
1432 | pointer. */ | |
50810684 UW |
1433 | TYPE_LENGTH (type) |
1434 | = gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT; | |
c906108c SS |
1435 | } |
1436 | ||
0b92b5bb TT |
1437 | /* Smash TYPE to be a type of pointer to methods type TO_TYPE. |
1438 | ||
1439 | When "smashing" the type, we preserve the objfile that the old type | |
1440 | pointed to, since we aren't changing where the type is actually | |
1441 | allocated. */ | |
1442 | ||
1443 | void | |
1444 | smash_to_methodptr_type (struct type *type, struct type *to_type) | |
1445 | { | |
1446 | smash_type (type); | |
09e2d7c7 | 1447 | TYPE_CODE (type) = TYPE_CODE_METHODPTR; |
0b92b5bb | 1448 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1449 | set_type_self_type (type, TYPE_SELF_TYPE (to_type)); |
0b92b5bb | 1450 | TYPE_LENGTH (type) = cplus_method_ptr_size (to_type); |
0b92b5bb TT |
1451 | } |
1452 | ||
09e2d7c7 | 1453 | /* Smash TYPE to be a type of method of SELF_TYPE with type TO_TYPE. |
c906108c SS |
1454 | METHOD just means `function that gets an extra "this" argument'. |
1455 | ||
7ba81444 MS |
1456 | When "smashing" the type, we preserve the objfile that the old type |
1457 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1458 | allocated. */ |
1459 | ||
1460 | void | |
09e2d7c7 | 1461 | smash_to_method_type (struct type *type, struct type *self_type, |
ad2f7632 DJ |
1462 | struct type *to_type, struct field *args, |
1463 | int nargs, int varargs) | |
c906108c | 1464 | { |
2fdde8f8 | 1465 | smash_type (type); |
09e2d7c7 | 1466 | TYPE_CODE (type) = TYPE_CODE_METHOD; |
c906108c | 1467 | TYPE_TARGET_TYPE (type) = to_type; |
09e2d7c7 | 1468 | set_type_self_type (type, self_type); |
ad2f7632 DJ |
1469 | TYPE_FIELDS (type) = args; |
1470 | TYPE_NFIELDS (type) = nargs; | |
1471 | if (varargs) | |
876cecd0 | 1472 | TYPE_VARARGS (type) = 1; |
c906108c | 1473 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
c906108c SS |
1474 | } |
1475 | ||
a737d952 | 1476 | /* A wrapper of TYPE_NAME which calls error if the type is anonymous. |
d8228535 JK |
1477 | Since GCC PR debug/47510 DWARF provides associated information to detect the |
1478 | anonymous class linkage name from its typedef. | |
1479 | ||
1480 | Parameter TYPE should not yet have CHECK_TYPEDEF applied, this function will | |
1481 | apply it itself. */ | |
1482 | ||
1483 | const char * | |
a737d952 | 1484 | type_name_or_error (struct type *type) |
d8228535 JK |
1485 | { |
1486 | struct type *saved_type = type; | |
1487 | const char *name; | |
1488 | struct objfile *objfile; | |
1489 | ||
f168693b | 1490 | type = check_typedef (type); |
d8228535 | 1491 | |
a737d952 | 1492 | name = TYPE_NAME (type); |
d8228535 JK |
1493 | if (name != NULL) |
1494 | return name; | |
1495 | ||
a737d952 | 1496 | name = TYPE_NAME (saved_type); |
d8228535 JK |
1497 | objfile = TYPE_OBJFILE (saved_type); |
1498 | error (_("Invalid anonymous type %s [in module %s], GCC PR debug/47510 bug?"), | |
4262abfb JK |
1499 | name ? name : "<anonymous>", |
1500 | objfile ? objfile_name (objfile) : "<arch>"); | |
d8228535 JK |
1501 | } |
1502 | ||
7ba81444 MS |
1503 | /* Lookup a typedef or primitive type named NAME, visible in lexical |
1504 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
1505 | suitably defined. */ | |
c906108c SS |
1506 | |
1507 | struct type * | |
e6c014f2 | 1508 | lookup_typename (const struct language_defn *language, |
ddd49eee | 1509 | struct gdbarch *gdbarch, const char *name, |
34eaf542 | 1510 | const struct block *block, int noerr) |
c906108c | 1511 | { |
52f0bd74 | 1512 | struct symbol *sym; |
c906108c | 1513 | |
1994afbf | 1514 | sym = lookup_symbol_in_language (name, block, VAR_DOMAIN, |
d12307c1 | 1515 | language->la_language, NULL).symbol; |
c51fe631 DE |
1516 | if (sym != NULL && SYMBOL_CLASS (sym) == LOC_TYPEDEF) |
1517 | return SYMBOL_TYPE (sym); | |
1518 | ||
c51fe631 DE |
1519 | if (noerr) |
1520 | return NULL; | |
1521 | error (_("No type named %s."), name); | |
c906108c SS |
1522 | } |
1523 | ||
1524 | struct type * | |
e6c014f2 | 1525 | lookup_unsigned_typename (const struct language_defn *language, |
0d5cff50 | 1526 | struct gdbarch *gdbarch, const char *name) |
c906108c | 1527 | { |
224c3ddb | 1528 | char *uns = (char *) alloca (strlen (name) + 10); |
c906108c SS |
1529 | |
1530 | strcpy (uns, "unsigned "); | |
1531 | strcpy (uns + 9, name); | |
582942f4 | 1532 | return lookup_typename (language, gdbarch, uns, NULL, 0); |
c906108c SS |
1533 | } |
1534 | ||
1535 | struct type * | |
e6c014f2 | 1536 | lookup_signed_typename (const struct language_defn *language, |
0d5cff50 | 1537 | struct gdbarch *gdbarch, const char *name) |
c906108c SS |
1538 | { |
1539 | struct type *t; | |
224c3ddb | 1540 | char *uns = (char *) alloca (strlen (name) + 8); |
c906108c SS |
1541 | |
1542 | strcpy (uns, "signed "); | |
1543 | strcpy (uns + 7, name); | |
582942f4 | 1544 | t = lookup_typename (language, gdbarch, uns, NULL, 1); |
7ba81444 | 1545 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
c906108c SS |
1546 | if (t != NULL) |
1547 | return t; | |
582942f4 | 1548 | return lookup_typename (language, gdbarch, name, NULL, 0); |
c906108c SS |
1549 | } |
1550 | ||
1551 | /* Lookup a structure type named "struct NAME", | |
1552 | visible in lexical block BLOCK. */ | |
1553 | ||
1554 | struct type * | |
270140bd | 1555 | lookup_struct (const char *name, const struct block *block) |
c906108c | 1556 | { |
52f0bd74 | 1557 | struct symbol *sym; |
c906108c | 1558 | |
d12307c1 | 1559 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1560 | |
1561 | if (sym == NULL) | |
1562 | { | |
8a3fe4f8 | 1563 | error (_("No struct type named %s."), name); |
c906108c SS |
1564 | } |
1565 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1566 | { | |
7ba81444 MS |
1567 | error (_("This context has class, union or enum %s, not a struct."), |
1568 | name); | |
c906108c SS |
1569 | } |
1570 | return (SYMBOL_TYPE (sym)); | |
1571 | } | |
1572 | ||
1573 | /* Lookup a union type named "union NAME", | |
1574 | visible in lexical block BLOCK. */ | |
1575 | ||
1576 | struct type * | |
270140bd | 1577 | lookup_union (const char *name, const struct block *block) |
c906108c | 1578 | { |
52f0bd74 | 1579 | struct symbol *sym; |
c5aa993b | 1580 | struct type *t; |
c906108c | 1581 | |
d12307c1 | 1582 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1583 | |
1584 | if (sym == NULL) | |
8a3fe4f8 | 1585 | error (_("No union type named %s."), name); |
c906108c | 1586 | |
c5aa993b | 1587 | t = SYMBOL_TYPE (sym); |
c906108c SS |
1588 | |
1589 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
c16abbde | 1590 | return t; |
c906108c | 1591 | |
7ba81444 MS |
1592 | /* If we get here, it's not a union. */ |
1593 | error (_("This context has class, struct or enum %s, not a union."), | |
1594 | name); | |
c906108c SS |
1595 | } |
1596 | ||
c906108c SS |
1597 | /* Lookup an enum type named "enum NAME", |
1598 | visible in lexical block BLOCK. */ | |
1599 | ||
1600 | struct type * | |
270140bd | 1601 | lookup_enum (const char *name, const struct block *block) |
c906108c | 1602 | { |
52f0bd74 | 1603 | struct symbol *sym; |
c906108c | 1604 | |
d12307c1 | 1605 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
1606 | if (sym == NULL) |
1607 | { | |
8a3fe4f8 | 1608 | error (_("No enum type named %s."), name); |
c906108c SS |
1609 | } |
1610 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
1611 | { | |
7ba81444 MS |
1612 | error (_("This context has class, struct or union %s, not an enum."), |
1613 | name); | |
c906108c SS |
1614 | } |
1615 | return (SYMBOL_TYPE (sym)); | |
1616 | } | |
1617 | ||
1618 | /* Lookup a template type named "template NAME<TYPE>", | |
1619 | visible in lexical block BLOCK. */ | |
1620 | ||
1621 | struct type * | |
61f4b350 | 1622 | lookup_template_type (const char *name, struct type *type, |
270140bd | 1623 | const struct block *block) |
c906108c SS |
1624 | { |
1625 | struct symbol *sym; | |
7ba81444 MS |
1626 | char *nam = (char *) |
1627 | alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4); | |
d8734c88 | 1628 | |
c906108c SS |
1629 | strcpy (nam, name); |
1630 | strcat (nam, "<"); | |
0004e5a2 | 1631 | strcat (nam, TYPE_NAME (type)); |
0963b4bd | 1632 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1633 | |
d12307c1 | 1634 | sym = lookup_symbol (nam, block, VAR_DOMAIN, 0).symbol; |
c906108c SS |
1635 | |
1636 | if (sym == NULL) | |
1637 | { | |
8a3fe4f8 | 1638 | error (_("No template type named %s."), name); |
c906108c SS |
1639 | } |
1640 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1641 | { | |
7ba81444 MS |
1642 | error (_("This context has class, union or enum %s, not a struct."), |
1643 | name); | |
c906108c SS |
1644 | } |
1645 | return (SYMBOL_TYPE (sym)); | |
1646 | } | |
1647 | ||
ef0bd204 | 1648 | /* See gdbtypes.h. */ |
c906108c | 1649 | |
ef0bd204 JB |
1650 | struct_elt |
1651 | lookup_struct_elt (struct type *type, const char *name, int noerr) | |
c906108c SS |
1652 | { |
1653 | int i; | |
1654 | ||
1655 | for (;;) | |
1656 | { | |
f168693b | 1657 | type = check_typedef (type); |
c906108c SS |
1658 | if (TYPE_CODE (type) != TYPE_CODE_PTR |
1659 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1660 | break; | |
1661 | type = TYPE_TARGET_TYPE (type); | |
1662 | } | |
1663 | ||
687d6395 MS |
1664 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
1665 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
c906108c | 1666 | { |
2f408ecb PA |
1667 | std::string type_name = type_to_string (type); |
1668 | error (_("Type %s is not a structure or union type."), | |
1669 | type_name.c_str ()); | |
c906108c SS |
1670 | } |
1671 | ||
c906108c SS |
1672 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) |
1673 | { | |
0d5cff50 | 1674 | const char *t_field_name = TYPE_FIELD_NAME (type, i); |
c906108c | 1675 | |
db577aea | 1676 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c | 1677 | { |
ef0bd204 | 1678 | return {&TYPE_FIELD (type, i), TYPE_FIELD_BITPOS (type, i)}; |
c906108c | 1679 | } |
f5a010c0 PM |
1680 | else if (!t_field_name || *t_field_name == '\0') |
1681 | { | |
ef0bd204 JB |
1682 | struct_elt elt |
1683 | = lookup_struct_elt (TYPE_FIELD_TYPE (type, i), name, 1); | |
1684 | if (elt.field != NULL) | |
1685 | { | |
1686 | elt.offset += TYPE_FIELD_BITPOS (type, i); | |
1687 | return elt; | |
1688 | } | |
f5a010c0 | 1689 | } |
c906108c SS |
1690 | } |
1691 | ||
1692 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1693 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1694 | { | |
ef0bd204 JB |
1695 | struct_elt elt = lookup_struct_elt (TYPE_BASECLASS (type, i), name, 1); |
1696 | if (elt.field != NULL) | |
1697 | return elt; | |
c906108c SS |
1698 | } |
1699 | ||
1700 | if (noerr) | |
ef0bd204 | 1701 | return {nullptr, 0}; |
c5aa993b | 1702 | |
2f408ecb PA |
1703 | std::string type_name = type_to_string (type); |
1704 | error (_("Type %s has no component named %s."), type_name.c_str (), name); | |
c906108c SS |
1705 | } |
1706 | ||
ef0bd204 JB |
1707 | /* See gdbtypes.h. */ |
1708 | ||
1709 | struct type * | |
1710 | lookup_struct_elt_type (struct type *type, const char *name, int noerr) | |
1711 | { | |
1712 | struct_elt elt = lookup_struct_elt (type, name, noerr); | |
1713 | if (elt.field != NULL) | |
1714 | return FIELD_TYPE (*elt.field); | |
1715 | else | |
1716 | return NULL; | |
1717 | } | |
1718 | ||
ed3ef339 DE |
1719 | /* Store in *MAX the largest number representable by unsigned integer type |
1720 | TYPE. */ | |
1721 | ||
1722 | void | |
1723 | get_unsigned_type_max (struct type *type, ULONGEST *max) | |
1724 | { | |
1725 | unsigned int n; | |
1726 | ||
f168693b | 1727 | type = check_typedef (type); |
ed3ef339 DE |
1728 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && TYPE_UNSIGNED (type)); |
1729 | gdb_assert (TYPE_LENGTH (type) <= sizeof (ULONGEST)); | |
1730 | ||
1731 | /* Written this way to avoid overflow. */ | |
1732 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1733 | *max = ((((ULONGEST) 1 << (n - 1)) - 1) << 1) | 1; | |
1734 | } | |
1735 | ||
1736 | /* Store in *MIN, *MAX the smallest and largest numbers representable by | |
1737 | signed integer type TYPE. */ | |
1738 | ||
1739 | void | |
1740 | get_signed_type_minmax (struct type *type, LONGEST *min, LONGEST *max) | |
1741 | { | |
1742 | unsigned int n; | |
1743 | ||
f168693b | 1744 | type = check_typedef (type); |
ed3ef339 DE |
1745 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && !TYPE_UNSIGNED (type)); |
1746 | gdb_assert (TYPE_LENGTH (type) <= sizeof (LONGEST)); | |
1747 | ||
1748 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1749 | *min = -((ULONGEST) 1 << (n - 1)); | |
1750 | *max = ((ULONGEST) 1 << (n - 1)) - 1; | |
1751 | } | |
1752 | ||
ae6ae975 DE |
1753 | /* Internal routine called by TYPE_VPTR_FIELDNO to return the value of |
1754 | cplus_stuff.vptr_fieldno. | |
1755 | ||
1756 | cplus_stuff is initialized to cplus_struct_default which does not | |
1757 | set vptr_fieldno to -1 for portability reasons (IWBN to use C99 | |
1758 | designated initializers). We cope with that here. */ | |
1759 | ||
1760 | int | |
1761 | internal_type_vptr_fieldno (struct type *type) | |
1762 | { | |
f168693b | 1763 | type = check_typedef (type); |
ae6ae975 DE |
1764 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1765 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1766 | if (!HAVE_CPLUS_STRUCT (type)) | |
1767 | return -1; | |
1768 | return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno; | |
1769 | } | |
1770 | ||
1771 | /* Set the value of cplus_stuff.vptr_fieldno. */ | |
1772 | ||
1773 | void | |
1774 | set_type_vptr_fieldno (struct type *type, int fieldno) | |
1775 | { | |
f168693b | 1776 | type = check_typedef (type); |
ae6ae975 DE |
1777 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1778 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1779 | if (!HAVE_CPLUS_STRUCT (type)) | |
1780 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
1781 | TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_fieldno = fieldno; | |
1782 | } | |
1783 | ||
1784 | /* Internal routine called by TYPE_VPTR_BASETYPE to return the value of | |
1785 | cplus_stuff.vptr_basetype. */ | |
1786 | ||
1787 | struct type * | |
1788 | internal_type_vptr_basetype (struct type *type) | |
1789 | { | |
f168693b | 1790 | type = check_typedef (type); |
ae6ae975 DE |
1791 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1792 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1793 | gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_CPLUS_STUFF); | |
1794 | return TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype; | |
1795 | } | |
1796 | ||
1797 | /* Set the value of cplus_stuff.vptr_basetype. */ | |
1798 | ||
1799 | void | |
1800 | set_type_vptr_basetype (struct type *type, struct type *basetype) | |
1801 | { | |
f168693b | 1802 | type = check_typedef (type); |
ae6ae975 DE |
1803 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT |
1804 | || TYPE_CODE (type) == TYPE_CODE_UNION); | |
1805 | if (!HAVE_CPLUS_STRUCT (type)) | |
1806 | ALLOCATE_CPLUS_STRUCT_TYPE (type); | |
1807 | TYPE_RAW_CPLUS_SPECIFIC (type)->vptr_basetype = basetype; | |
1808 | } | |
1809 | ||
81fe8080 DE |
1810 | /* Lookup the vptr basetype/fieldno values for TYPE. |
1811 | If found store vptr_basetype in *BASETYPEP if non-NULL, and return | |
1812 | vptr_fieldno. Also, if found and basetype is from the same objfile, | |
1813 | cache the results. | |
1814 | If not found, return -1 and ignore BASETYPEP. | |
1815 | Callers should be aware that in some cases (for example, | |
c906108c | 1816 | the type or one of its baseclasses is a stub type and we are |
d48cc9dd DJ |
1817 | debugging a .o file, or the compiler uses DWARF-2 and is not GCC), |
1818 | this function will not be able to find the | |
7ba81444 | 1819 | virtual function table pointer, and vptr_fieldno will remain -1 and |
81fe8080 | 1820 | vptr_basetype will remain NULL or incomplete. */ |
c906108c | 1821 | |
81fe8080 DE |
1822 | int |
1823 | get_vptr_fieldno (struct type *type, struct type **basetypep) | |
c906108c | 1824 | { |
f168693b | 1825 | type = check_typedef (type); |
c906108c SS |
1826 | |
1827 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1828 | { | |
1829 | int i; | |
1830 | ||
7ba81444 MS |
1831 | /* We must start at zero in case the first (and only) baseclass |
1832 | is virtual (and hence we cannot share the table pointer). */ | |
c906108c SS |
1833 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1834 | { | |
81fe8080 DE |
1835 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
1836 | int fieldno; | |
1837 | struct type *basetype; | |
1838 | ||
1839 | fieldno = get_vptr_fieldno (baseclass, &basetype); | |
1840 | if (fieldno >= 0) | |
c906108c | 1841 | { |
81fe8080 | 1842 | /* If the type comes from a different objfile we can't cache |
0963b4bd | 1843 | it, it may have a different lifetime. PR 2384 */ |
5ef73790 | 1844 | if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype)) |
81fe8080 | 1845 | { |
ae6ae975 DE |
1846 | set_type_vptr_fieldno (type, fieldno); |
1847 | set_type_vptr_basetype (type, basetype); | |
81fe8080 DE |
1848 | } |
1849 | if (basetypep) | |
1850 | *basetypep = basetype; | |
1851 | return fieldno; | |
c906108c SS |
1852 | } |
1853 | } | |
81fe8080 DE |
1854 | |
1855 | /* Not found. */ | |
1856 | return -1; | |
1857 | } | |
1858 | else | |
1859 | { | |
1860 | if (basetypep) | |
1861 | *basetypep = TYPE_VPTR_BASETYPE (type); | |
1862 | return TYPE_VPTR_FIELDNO (type); | |
c906108c SS |
1863 | } |
1864 | } | |
1865 | ||
44e1a9eb DJ |
1866 | static void |
1867 | stub_noname_complaint (void) | |
1868 | { | |
b98664d3 | 1869 | complaint (_("stub type has NULL name")); |
44e1a9eb DJ |
1870 | } |
1871 | ||
a405673c JB |
1872 | /* Return nonzero if TYPE has a DYN_PROP_BYTE_STRIDE dynamic property |
1873 | attached to it, and that property has a non-constant value. */ | |
1874 | ||
1875 | static int | |
1876 | array_type_has_dynamic_stride (struct type *type) | |
1877 | { | |
1878 | struct dynamic_prop *prop = get_dyn_prop (DYN_PROP_BYTE_STRIDE, type); | |
1879 | ||
1880 | return (prop != NULL && prop->kind != PROP_CONST); | |
1881 | } | |
1882 | ||
d98b7a16 | 1883 | /* Worker for is_dynamic_type. */ |
80180f79 | 1884 | |
d98b7a16 | 1885 | static int |
ee715b5a | 1886 | is_dynamic_type_internal (struct type *type, int top_level) |
80180f79 SA |
1887 | { |
1888 | type = check_typedef (type); | |
1889 | ||
e771e4be PMR |
1890 | /* We only want to recognize references at the outermost level. */ |
1891 | if (top_level && TYPE_CODE (type) == TYPE_CODE_REF) | |
1892 | type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1893 | ||
3cdcd0ce JB |
1894 | /* Types that have a dynamic TYPE_DATA_LOCATION are considered |
1895 | dynamic, even if the type itself is statically defined. | |
1896 | From a user's point of view, this may appear counter-intuitive; | |
1897 | but it makes sense in this context, because the point is to determine | |
1898 | whether any part of the type needs to be resolved before it can | |
1899 | be exploited. */ | |
1900 | if (TYPE_DATA_LOCATION (type) != NULL | |
1901 | && (TYPE_DATA_LOCATION_KIND (type) == PROP_LOCEXPR | |
1902 | || TYPE_DATA_LOCATION_KIND (type) == PROP_LOCLIST)) | |
1903 | return 1; | |
1904 | ||
3f2f83dd KB |
1905 | if (TYPE_ASSOCIATED_PROP (type)) |
1906 | return 1; | |
1907 | ||
1908 | if (TYPE_ALLOCATED_PROP (type)) | |
1909 | return 1; | |
1910 | ||
80180f79 SA |
1911 | switch (TYPE_CODE (type)) |
1912 | { | |
6f8a3220 | 1913 | case TYPE_CODE_RANGE: |
ddb87a81 JB |
1914 | { |
1915 | /* A range type is obviously dynamic if it has at least one | |
1916 | dynamic bound. But also consider the range type to be | |
1917 | dynamic when its subtype is dynamic, even if the bounds | |
1918 | of the range type are static. It allows us to assume that | |
1919 | the subtype of a static range type is also static. */ | |
1920 | return (!has_static_range (TYPE_RANGE_DATA (type)) | |
ee715b5a | 1921 | || is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0)); |
ddb87a81 | 1922 | } |
6f8a3220 | 1923 | |
80180f79 SA |
1924 | case TYPE_CODE_ARRAY: |
1925 | { | |
80180f79 | 1926 | gdb_assert (TYPE_NFIELDS (type) == 1); |
6f8a3220 | 1927 | |
a405673c | 1928 | /* The array is dynamic if either the bounds are dynamic... */ |
ee715b5a | 1929 | if (is_dynamic_type_internal (TYPE_INDEX_TYPE (type), 0)) |
80180f79 | 1930 | return 1; |
a405673c JB |
1931 | /* ... or the elements it contains have a dynamic contents... */ |
1932 | if (is_dynamic_type_internal (TYPE_TARGET_TYPE (type), 0)) | |
1933 | return 1; | |
1934 | /* ... or if it has a dynamic stride... */ | |
1935 | if (array_type_has_dynamic_stride (type)) | |
1936 | return 1; | |
1937 | return 0; | |
80180f79 | 1938 | } |
012370f6 TT |
1939 | |
1940 | case TYPE_CODE_STRUCT: | |
1941 | case TYPE_CODE_UNION: | |
1942 | { | |
1943 | int i; | |
1944 | ||
1945 | for (i = 0; i < TYPE_NFIELDS (type); ++i) | |
1946 | if (!field_is_static (&TYPE_FIELD (type, i)) | |
ee715b5a | 1947 | && is_dynamic_type_internal (TYPE_FIELD_TYPE (type, i), 0)) |
012370f6 TT |
1948 | return 1; |
1949 | } | |
1950 | break; | |
80180f79 | 1951 | } |
92e2a17f TT |
1952 | |
1953 | return 0; | |
80180f79 SA |
1954 | } |
1955 | ||
d98b7a16 TT |
1956 | /* See gdbtypes.h. */ |
1957 | ||
1958 | int | |
1959 | is_dynamic_type (struct type *type) | |
1960 | { | |
ee715b5a | 1961 | return is_dynamic_type_internal (type, 1); |
d98b7a16 TT |
1962 | } |
1963 | ||
df25ebbd | 1964 | static struct type *resolve_dynamic_type_internal |
ee715b5a | 1965 | (struct type *type, struct property_addr_info *addr_stack, int top_level); |
d98b7a16 | 1966 | |
df25ebbd JB |
1967 | /* Given a dynamic range type (dyn_range_type) and a stack of |
1968 | struct property_addr_info elements, return a static version | |
1969 | of that type. */ | |
d190df30 | 1970 | |
80180f79 | 1971 | static struct type * |
df25ebbd JB |
1972 | resolve_dynamic_range (struct type *dyn_range_type, |
1973 | struct property_addr_info *addr_stack) | |
80180f79 SA |
1974 | { |
1975 | CORE_ADDR value; | |
ddb87a81 | 1976 | struct type *static_range_type, *static_target_type; |
80180f79 | 1977 | const struct dynamic_prop *prop; |
80180f79 SA |
1978 | struct dynamic_prop low_bound, high_bound; |
1979 | ||
6f8a3220 | 1980 | gdb_assert (TYPE_CODE (dyn_range_type) == TYPE_CODE_RANGE); |
80180f79 | 1981 | |
6f8a3220 | 1982 | prop = &TYPE_RANGE_DATA (dyn_range_type)->low; |
63e43d3a | 1983 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
80180f79 SA |
1984 | { |
1985 | low_bound.kind = PROP_CONST; | |
1986 | low_bound.data.const_val = value; | |
1987 | } | |
1988 | else | |
1989 | { | |
1990 | low_bound.kind = PROP_UNDEFINED; | |
1991 | low_bound.data.const_val = 0; | |
1992 | } | |
1993 | ||
6f8a3220 | 1994 | prop = &TYPE_RANGE_DATA (dyn_range_type)->high; |
63e43d3a | 1995 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
80180f79 SA |
1996 | { |
1997 | high_bound.kind = PROP_CONST; | |
1998 | high_bound.data.const_val = value; | |
c451ebe5 | 1999 | |
6f8a3220 | 2000 | if (TYPE_RANGE_DATA (dyn_range_type)->flag_upper_bound_is_count) |
c451ebe5 SA |
2001 | high_bound.data.const_val |
2002 | = low_bound.data.const_val + high_bound.data.const_val - 1; | |
80180f79 SA |
2003 | } |
2004 | else | |
2005 | { | |
2006 | high_bound.kind = PROP_UNDEFINED; | |
2007 | high_bound.data.const_val = 0; | |
2008 | } | |
2009 | ||
ddb87a81 JB |
2010 | static_target_type |
2011 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (dyn_range_type), | |
ee715b5a | 2012 | addr_stack, 0); |
6f8a3220 | 2013 | static_range_type = create_range_type (copy_type (dyn_range_type), |
ddb87a81 | 2014 | static_target_type, |
6f8a3220 JB |
2015 | &low_bound, &high_bound); |
2016 | TYPE_RANGE_DATA (static_range_type)->flag_bound_evaluated = 1; | |
2017 | return static_range_type; | |
2018 | } | |
2019 | ||
2020 | /* Resolves dynamic bound values of an array type TYPE to static ones. | |
df25ebbd JB |
2021 | ADDR_STACK is a stack of struct property_addr_info to be used |
2022 | if needed during the dynamic resolution. */ | |
6f8a3220 JB |
2023 | |
2024 | static struct type * | |
df25ebbd JB |
2025 | resolve_dynamic_array (struct type *type, |
2026 | struct property_addr_info *addr_stack) | |
6f8a3220 JB |
2027 | { |
2028 | CORE_ADDR value; | |
2029 | struct type *elt_type; | |
2030 | struct type *range_type; | |
2031 | struct type *ary_dim; | |
3f2f83dd | 2032 | struct dynamic_prop *prop; |
a405673c | 2033 | unsigned int bit_stride = 0; |
6f8a3220 JB |
2034 | |
2035 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_ARRAY); | |
2036 | ||
3f2f83dd KB |
2037 | type = copy_type (type); |
2038 | ||
6f8a3220 JB |
2039 | elt_type = type; |
2040 | range_type = check_typedef (TYPE_INDEX_TYPE (elt_type)); | |
df25ebbd | 2041 | range_type = resolve_dynamic_range (range_type, addr_stack); |
6f8a3220 | 2042 | |
3f2f83dd KB |
2043 | /* Resolve allocated/associated here before creating a new array type, which |
2044 | will update the length of the array accordingly. */ | |
2045 | prop = TYPE_ALLOCATED_PROP (type); | |
2046 | if (prop != NULL && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
2047 | { | |
2048 | TYPE_DYN_PROP_ADDR (prop) = value; | |
2049 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
2050 | } | |
2051 | prop = TYPE_ASSOCIATED_PROP (type); | |
2052 | if (prop != NULL && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
2053 | { | |
2054 | TYPE_DYN_PROP_ADDR (prop) = value; | |
2055 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
2056 | } | |
2057 | ||
80180f79 SA |
2058 | ary_dim = check_typedef (TYPE_TARGET_TYPE (elt_type)); |
2059 | ||
2060 | if (ary_dim != NULL && TYPE_CODE (ary_dim) == TYPE_CODE_ARRAY) | |
d0d84780 | 2061 | elt_type = resolve_dynamic_array (ary_dim, addr_stack); |
80180f79 SA |
2062 | else |
2063 | elt_type = TYPE_TARGET_TYPE (type); | |
2064 | ||
a405673c JB |
2065 | prop = get_dyn_prop (DYN_PROP_BYTE_STRIDE, type); |
2066 | if (prop != NULL) | |
2067 | { | |
603490bf | 2068 | if (dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) |
a405673c JB |
2069 | { |
2070 | remove_dyn_prop (DYN_PROP_BYTE_STRIDE, type); | |
2071 | bit_stride = (unsigned int) (value * 8); | |
2072 | } | |
2073 | else | |
2074 | { | |
2075 | /* Could be a bug in our code, but it could also happen | |
2076 | if the DWARF info is not correct. Issue a warning, | |
2077 | and assume no byte/bit stride (leave bit_stride = 0). */ | |
2078 | warning (_("cannot determine array stride for type %s"), | |
2079 | TYPE_NAME (type) ? TYPE_NAME (type) : "<no name>"); | |
2080 | } | |
2081 | } | |
2082 | else | |
2083 | bit_stride = TYPE_FIELD_BITSIZE (type, 0); | |
2084 | ||
2085 | return create_array_type_with_stride (type, elt_type, range_type, NULL, | |
2086 | bit_stride); | |
80180f79 SA |
2087 | } |
2088 | ||
012370f6 | 2089 | /* Resolve dynamic bounds of members of the union TYPE to static |
df25ebbd JB |
2090 | bounds. ADDR_STACK is a stack of struct property_addr_info |
2091 | to be used if needed during the dynamic resolution. */ | |
012370f6 TT |
2092 | |
2093 | static struct type * | |
df25ebbd JB |
2094 | resolve_dynamic_union (struct type *type, |
2095 | struct property_addr_info *addr_stack) | |
012370f6 TT |
2096 | { |
2097 | struct type *resolved_type; | |
2098 | int i; | |
2099 | unsigned int max_len = 0; | |
2100 | ||
2101 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_UNION); | |
2102 | ||
2103 | resolved_type = copy_type (type); | |
2104 | TYPE_FIELDS (resolved_type) | |
224c3ddb SM |
2105 | = (struct field *) TYPE_ALLOC (resolved_type, |
2106 | TYPE_NFIELDS (resolved_type) | |
2107 | * sizeof (struct field)); | |
012370f6 TT |
2108 | memcpy (TYPE_FIELDS (resolved_type), |
2109 | TYPE_FIELDS (type), | |
2110 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
2111 | for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i) | |
2112 | { | |
2113 | struct type *t; | |
2114 | ||
2115 | if (field_is_static (&TYPE_FIELD (type, i))) | |
2116 | continue; | |
2117 | ||
d98b7a16 | 2118 | t = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i), |
ee715b5a | 2119 | addr_stack, 0); |
012370f6 TT |
2120 | TYPE_FIELD_TYPE (resolved_type, i) = t; |
2121 | if (TYPE_LENGTH (t) > max_len) | |
2122 | max_len = TYPE_LENGTH (t); | |
2123 | } | |
2124 | ||
2125 | TYPE_LENGTH (resolved_type) = max_len; | |
2126 | return resolved_type; | |
2127 | } | |
2128 | ||
2129 | /* Resolve dynamic bounds of members of the struct TYPE to static | |
df25ebbd JB |
2130 | bounds. ADDR_STACK is a stack of struct property_addr_info to |
2131 | be used if needed during the dynamic resolution. */ | |
012370f6 TT |
2132 | |
2133 | static struct type * | |
df25ebbd JB |
2134 | resolve_dynamic_struct (struct type *type, |
2135 | struct property_addr_info *addr_stack) | |
012370f6 TT |
2136 | { |
2137 | struct type *resolved_type; | |
2138 | int i; | |
6908c509 | 2139 | unsigned resolved_type_bit_length = 0; |
012370f6 TT |
2140 | |
2141 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT); | |
2142 | gdb_assert (TYPE_NFIELDS (type) > 0); | |
2143 | ||
2144 | resolved_type = copy_type (type); | |
2145 | TYPE_FIELDS (resolved_type) | |
224c3ddb SM |
2146 | = (struct field *) TYPE_ALLOC (resolved_type, |
2147 | TYPE_NFIELDS (resolved_type) | |
2148 | * sizeof (struct field)); | |
012370f6 TT |
2149 | memcpy (TYPE_FIELDS (resolved_type), |
2150 | TYPE_FIELDS (type), | |
2151 | TYPE_NFIELDS (resolved_type) * sizeof (struct field)); | |
2152 | for (i = 0; i < TYPE_NFIELDS (resolved_type); ++i) | |
2153 | { | |
6908c509 | 2154 | unsigned new_bit_length; |
df25ebbd | 2155 | struct property_addr_info pinfo; |
012370f6 TT |
2156 | |
2157 | if (field_is_static (&TYPE_FIELD (type, i))) | |
2158 | continue; | |
2159 | ||
6908c509 JB |
2160 | /* As we know this field is not a static field, the field's |
2161 | field_loc_kind should be FIELD_LOC_KIND_BITPOS. Verify | |
2162 | this is the case, but only trigger a simple error rather | |
2163 | than an internal error if that fails. While failing | |
2164 | that verification indicates a bug in our code, the error | |
2165 | is not severe enough to suggest to the user he stops | |
2166 | his debugging session because of it. */ | |
df25ebbd | 2167 | if (TYPE_FIELD_LOC_KIND (type, i) != FIELD_LOC_KIND_BITPOS) |
6908c509 JB |
2168 | error (_("Cannot determine struct field location" |
2169 | " (invalid location kind)")); | |
df25ebbd JB |
2170 | |
2171 | pinfo.type = check_typedef (TYPE_FIELD_TYPE (type, i)); | |
c3345124 | 2172 | pinfo.valaddr = addr_stack->valaddr; |
9920b434 BH |
2173 | pinfo.addr |
2174 | = (addr_stack->addr | |
2175 | + (TYPE_FIELD_BITPOS (resolved_type, i) / TARGET_CHAR_BIT)); | |
df25ebbd JB |
2176 | pinfo.next = addr_stack; |
2177 | ||
2178 | TYPE_FIELD_TYPE (resolved_type, i) | |
2179 | = resolve_dynamic_type_internal (TYPE_FIELD_TYPE (resolved_type, i), | |
ee715b5a | 2180 | &pinfo, 0); |
df25ebbd JB |
2181 | gdb_assert (TYPE_FIELD_LOC_KIND (resolved_type, i) |
2182 | == FIELD_LOC_KIND_BITPOS); | |
2183 | ||
6908c509 JB |
2184 | new_bit_length = TYPE_FIELD_BITPOS (resolved_type, i); |
2185 | if (TYPE_FIELD_BITSIZE (resolved_type, i) != 0) | |
2186 | new_bit_length += TYPE_FIELD_BITSIZE (resolved_type, i); | |
2187 | else | |
2188 | new_bit_length += (TYPE_LENGTH (TYPE_FIELD_TYPE (resolved_type, i)) | |
2189 | * TARGET_CHAR_BIT); | |
2190 | ||
2191 | /* Normally, we would use the position and size of the last field | |
2192 | to determine the size of the enclosing structure. But GCC seems | |
2193 | to be encoding the position of some fields incorrectly when | |
2194 | the struct contains a dynamic field that is not placed last. | |
2195 | So we compute the struct size based on the field that has | |
2196 | the highest position + size - probably the best we can do. */ | |
2197 | if (new_bit_length > resolved_type_bit_length) | |
2198 | resolved_type_bit_length = new_bit_length; | |
012370f6 TT |
2199 | } |
2200 | ||
9920b434 BH |
2201 | /* The length of a type won't change for fortran, but it does for C and Ada. |
2202 | For fortran the size of dynamic fields might change over time but not the | |
2203 | type length of the structure. If we adapt it, we run into problems | |
2204 | when calculating the element offset for arrays of structs. */ | |
2205 | if (current_language->la_language != language_fortran) | |
2206 | TYPE_LENGTH (resolved_type) | |
2207 | = (resolved_type_bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
6908c509 | 2208 | |
9e195661 PMR |
2209 | /* The Ada language uses this field as a cache for static fixed types: reset |
2210 | it as RESOLVED_TYPE must have its own static fixed type. */ | |
2211 | TYPE_TARGET_TYPE (resolved_type) = NULL; | |
2212 | ||
012370f6 TT |
2213 | return resolved_type; |
2214 | } | |
2215 | ||
d98b7a16 | 2216 | /* Worker for resolved_dynamic_type. */ |
80180f79 | 2217 | |
d98b7a16 | 2218 | static struct type * |
df25ebbd | 2219 | resolve_dynamic_type_internal (struct type *type, |
ee715b5a PMR |
2220 | struct property_addr_info *addr_stack, |
2221 | int top_level) | |
80180f79 SA |
2222 | { |
2223 | struct type *real_type = check_typedef (type); | |
6f8a3220 | 2224 | struct type *resolved_type = type; |
d9823cbb | 2225 | struct dynamic_prop *prop; |
3cdcd0ce | 2226 | CORE_ADDR value; |
80180f79 | 2227 | |
ee715b5a | 2228 | if (!is_dynamic_type_internal (real_type, top_level)) |
80180f79 SA |
2229 | return type; |
2230 | ||
5537b577 | 2231 | if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
6f8a3220 | 2232 | { |
cac9b138 JK |
2233 | resolved_type = copy_type (type); |
2234 | TYPE_TARGET_TYPE (resolved_type) | |
ee715b5a PMR |
2235 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), addr_stack, |
2236 | top_level); | |
5537b577 JK |
2237 | } |
2238 | else | |
2239 | { | |
2240 | /* Before trying to resolve TYPE, make sure it is not a stub. */ | |
2241 | type = real_type; | |
012370f6 | 2242 | |
5537b577 JK |
2243 | switch (TYPE_CODE (type)) |
2244 | { | |
e771e4be PMR |
2245 | case TYPE_CODE_REF: |
2246 | { | |
2247 | struct property_addr_info pinfo; | |
2248 | ||
2249 | pinfo.type = check_typedef (TYPE_TARGET_TYPE (type)); | |
c3345124 JB |
2250 | pinfo.valaddr = NULL; |
2251 | if (addr_stack->valaddr != NULL) | |
2252 | pinfo.addr = extract_typed_address (addr_stack->valaddr, type); | |
2253 | else | |
2254 | pinfo.addr = read_memory_typed_address (addr_stack->addr, type); | |
e771e4be PMR |
2255 | pinfo.next = addr_stack; |
2256 | ||
2257 | resolved_type = copy_type (type); | |
2258 | TYPE_TARGET_TYPE (resolved_type) | |
2259 | = resolve_dynamic_type_internal (TYPE_TARGET_TYPE (type), | |
2260 | &pinfo, top_level); | |
2261 | break; | |
2262 | } | |
2263 | ||
5537b577 | 2264 | case TYPE_CODE_ARRAY: |
df25ebbd | 2265 | resolved_type = resolve_dynamic_array (type, addr_stack); |
5537b577 JK |
2266 | break; |
2267 | ||
2268 | case TYPE_CODE_RANGE: | |
df25ebbd | 2269 | resolved_type = resolve_dynamic_range (type, addr_stack); |
5537b577 JK |
2270 | break; |
2271 | ||
2272 | case TYPE_CODE_UNION: | |
df25ebbd | 2273 | resolved_type = resolve_dynamic_union (type, addr_stack); |
5537b577 JK |
2274 | break; |
2275 | ||
2276 | case TYPE_CODE_STRUCT: | |
df25ebbd | 2277 | resolved_type = resolve_dynamic_struct (type, addr_stack); |
5537b577 JK |
2278 | break; |
2279 | } | |
6f8a3220 | 2280 | } |
80180f79 | 2281 | |
3cdcd0ce JB |
2282 | /* Resolve data_location attribute. */ |
2283 | prop = TYPE_DATA_LOCATION (resolved_type); | |
63e43d3a PMR |
2284 | if (prop != NULL |
2285 | && dwarf2_evaluate_property (prop, NULL, addr_stack, &value)) | |
3cdcd0ce | 2286 | { |
d9823cbb KB |
2287 | TYPE_DYN_PROP_ADDR (prop) = value; |
2288 | TYPE_DYN_PROP_KIND (prop) = PROP_CONST; | |
3cdcd0ce | 2289 | } |
3cdcd0ce | 2290 | |
80180f79 SA |
2291 | return resolved_type; |
2292 | } | |
2293 | ||
d98b7a16 TT |
2294 | /* See gdbtypes.h */ |
2295 | ||
2296 | struct type * | |
c3345124 JB |
2297 | resolve_dynamic_type (struct type *type, const gdb_byte *valaddr, |
2298 | CORE_ADDR addr) | |
d98b7a16 | 2299 | { |
c3345124 JB |
2300 | struct property_addr_info pinfo |
2301 | = {check_typedef (type), valaddr, addr, NULL}; | |
df25ebbd | 2302 | |
ee715b5a | 2303 | return resolve_dynamic_type_internal (type, &pinfo, 1); |
d98b7a16 TT |
2304 | } |
2305 | ||
d9823cbb KB |
2306 | /* See gdbtypes.h */ |
2307 | ||
2308 | struct dynamic_prop * | |
2309 | get_dyn_prop (enum dynamic_prop_node_kind prop_kind, const struct type *type) | |
2310 | { | |
2311 | struct dynamic_prop_list *node = TYPE_DYN_PROP_LIST (type); | |
2312 | ||
2313 | while (node != NULL) | |
2314 | { | |
2315 | if (node->prop_kind == prop_kind) | |
283a9958 | 2316 | return &node->prop; |
d9823cbb KB |
2317 | node = node->next; |
2318 | } | |
2319 | return NULL; | |
2320 | } | |
2321 | ||
2322 | /* See gdbtypes.h */ | |
2323 | ||
2324 | void | |
2325 | add_dyn_prop (enum dynamic_prop_node_kind prop_kind, struct dynamic_prop prop, | |
50a82047 | 2326 | struct type *type) |
d9823cbb KB |
2327 | { |
2328 | struct dynamic_prop_list *temp; | |
2329 | ||
2330 | gdb_assert (TYPE_OBJFILE_OWNED (type)); | |
2331 | ||
50a82047 TT |
2332 | temp = XOBNEW (&TYPE_OBJFILE (type)->objfile_obstack, |
2333 | struct dynamic_prop_list); | |
d9823cbb | 2334 | temp->prop_kind = prop_kind; |
283a9958 | 2335 | temp->prop = prop; |
d9823cbb KB |
2336 | temp->next = TYPE_DYN_PROP_LIST (type); |
2337 | ||
2338 | TYPE_DYN_PROP_LIST (type) = temp; | |
2339 | } | |
2340 | ||
9920b434 BH |
2341 | /* Remove dynamic property from TYPE in case it exists. */ |
2342 | ||
2343 | void | |
2344 | remove_dyn_prop (enum dynamic_prop_node_kind prop_kind, | |
2345 | struct type *type) | |
2346 | { | |
2347 | struct dynamic_prop_list *prev_node, *curr_node; | |
2348 | ||
2349 | curr_node = TYPE_DYN_PROP_LIST (type); | |
2350 | prev_node = NULL; | |
2351 | ||
2352 | while (NULL != curr_node) | |
2353 | { | |
2354 | if (curr_node->prop_kind == prop_kind) | |
2355 | { | |
2356 | /* Update the linked list but don't free anything. | |
2357 | The property was allocated on objstack and it is not known | |
2358 | if we are on top of it. Nevertheless, everything is released | |
2359 | when the complete objstack is freed. */ | |
2360 | if (NULL == prev_node) | |
2361 | TYPE_DYN_PROP_LIST (type) = curr_node->next; | |
2362 | else | |
2363 | prev_node->next = curr_node->next; | |
2364 | ||
2365 | return; | |
2366 | } | |
2367 | ||
2368 | prev_node = curr_node; | |
2369 | curr_node = curr_node->next; | |
2370 | } | |
2371 | } | |
d9823cbb | 2372 | |
92163a10 JK |
2373 | /* Find the real type of TYPE. This function returns the real type, |
2374 | after removing all layers of typedefs, and completing opaque or stub | |
2375 | types. Completion changes the TYPE argument, but stripping of | |
2376 | typedefs does not. | |
2377 | ||
2378 | Instance flags (e.g. const/volatile) are preserved as typedefs are | |
2379 | stripped. If necessary a new qualified form of the underlying type | |
2380 | is created. | |
2381 | ||
2382 | NOTE: This will return a typedef if TYPE_TARGET_TYPE for the typedef has | |
2383 | not been computed and we're either in the middle of reading symbols, or | |
2384 | there was no name for the typedef in the debug info. | |
2385 | ||
9bc118a5 DE |
2386 | NOTE: Lookup of opaque types can throw errors for invalid symbol files. |
2387 | QUITs in the symbol reading code can also throw. | |
2388 | Thus this function can throw an exception. | |
2389 | ||
92163a10 JK |
2390 | If TYPE is a TYPE_CODE_TYPEDEF, its length is updated to the length of |
2391 | the target type. | |
c906108c SS |
2392 | |
2393 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
0963b4bd | 2394 | we can find a full definition in some other file. If so, copy this |
7ba81444 MS |
2395 | definition, so we can use it in future. There used to be a comment |
2396 | (but not any code) that if we don't find a full definition, we'd | |
2397 | set a flag so we don't spend time in the future checking the same | |
2398 | type. That would be a mistake, though--we might load in more | |
92163a10 | 2399 | symbols which contain a full definition for the type. */ |
c906108c SS |
2400 | |
2401 | struct type * | |
a02fd225 | 2402 | check_typedef (struct type *type) |
c906108c SS |
2403 | { |
2404 | struct type *orig_type = type; | |
92163a10 JK |
2405 | /* While we're removing typedefs, we don't want to lose qualifiers. |
2406 | E.g., const/volatile. */ | |
2407 | int instance_flags = TYPE_INSTANCE_FLAGS (type); | |
a02fd225 | 2408 | |
423c0af8 MS |
2409 | gdb_assert (type); |
2410 | ||
c906108c SS |
2411 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
2412 | { | |
2413 | if (!TYPE_TARGET_TYPE (type)) | |
2414 | { | |
0d5cff50 | 2415 | const char *name; |
c906108c SS |
2416 | struct symbol *sym; |
2417 | ||
2418 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 2419 | reading a symtab. Infinite recursion is one danger. */ |
c906108c | 2420 | if (currently_reading_symtab) |
92163a10 | 2421 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2422 | |
a737d952 | 2423 | name = TYPE_NAME (type); |
e86ca25f TT |
2424 | /* FIXME: shouldn't we look in STRUCT_DOMAIN and/or |
2425 | VAR_DOMAIN as appropriate? */ | |
c906108c SS |
2426 | if (name == NULL) |
2427 | { | |
23136709 | 2428 | stub_noname_complaint (); |
92163a10 | 2429 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2430 | } |
d12307c1 | 2431 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0).symbol; |
c906108c SS |
2432 | if (sym) |
2433 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
7ba81444 | 2434 | else /* TYPE_CODE_UNDEF */ |
e9bb382b | 2435 | TYPE_TARGET_TYPE (type) = alloc_type_arch (get_type_arch (type)); |
c906108c SS |
2436 | } |
2437 | type = TYPE_TARGET_TYPE (type); | |
c906108c | 2438 | |
92163a10 JK |
2439 | /* Preserve the instance flags as we traverse down the typedef chain. |
2440 | ||
2441 | Handling address spaces/classes is nasty, what do we do if there's a | |
2442 | conflict? | |
2443 | E.g., what if an outer typedef marks the type as class_1 and an inner | |
2444 | typedef marks the type as class_2? | |
2445 | This is the wrong place to do such error checking. We leave it to | |
2446 | the code that created the typedef in the first place to flag the | |
2447 | error. We just pick the outer address space (akin to letting the | |
2448 | outer cast in a chain of casting win), instead of assuming | |
2449 | "it can't happen". */ | |
2450 | { | |
2451 | const int ALL_SPACES = (TYPE_INSTANCE_FLAG_CODE_SPACE | |
2452 | | TYPE_INSTANCE_FLAG_DATA_SPACE); | |
2453 | const int ALL_CLASSES = TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL; | |
2454 | int new_instance_flags = TYPE_INSTANCE_FLAGS (type); | |
2455 | ||
2456 | /* Treat code vs data spaces and address classes separately. */ | |
2457 | if ((instance_flags & ALL_SPACES) != 0) | |
2458 | new_instance_flags &= ~ALL_SPACES; | |
2459 | if ((instance_flags & ALL_CLASSES) != 0) | |
2460 | new_instance_flags &= ~ALL_CLASSES; | |
2461 | ||
2462 | instance_flags |= new_instance_flags; | |
2463 | } | |
2464 | } | |
a02fd225 | 2465 | |
7ba81444 MS |
2466 | /* If this is a struct/class/union with no fields, then check |
2467 | whether a full definition exists somewhere else. This is for | |
2468 | systems where a type definition with no fields is issued for such | |
2469 | types, instead of identifying them as stub types in the first | |
2470 | place. */ | |
c5aa993b | 2471 | |
7ba81444 MS |
2472 | if (TYPE_IS_OPAQUE (type) |
2473 | && opaque_type_resolution | |
2474 | && !currently_reading_symtab) | |
c906108c | 2475 | { |
a737d952 | 2476 | const char *name = TYPE_NAME (type); |
c5aa993b | 2477 | struct type *newtype; |
d8734c88 | 2478 | |
c906108c SS |
2479 | if (name == NULL) |
2480 | { | |
23136709 | 2481 | stub_noname_complaint (); |
92163a10 | 2482 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
2483 | } |
2484 | newtype = lookup_transparent_type (name); | |
ad766c0a | 2485 | |
c906108c | 2486 | if (newtype) |
ad766c0a | 2487 | { |
7ba81444 MS |
2488 | /* If the resolved type and the stub are in the same |
2489 | objfile, then replace the stub type with the real deal. | |
2490 | But if they're in separate objfiles, leave the stub | |
2491 | alone; we'll just look up the transparent type every time | |
2492 | we call check_typedef. We can't create pointers between | |
2493 | types allocated to different objfiles, since they may | |
2494 | have different lifetimes. Trying to copy NEWTYPE over to | |
2495 | TYPE's objfile is pointless, too, since you'll have to | |
2496 | move over any other types NEWTYPE refers to, which could | |
2497 | be an unbounded amount of stuff. */ | |
ad766c0a | 2498 | if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
92163a10 JK |
2499 | type = make_qualified_type (newtype, |
2500 | TYPE_INSTANCE_FLAGS (type), | |
2501 | type); | |
ad766c0a JB |
2502 | else |
2503 | type = newtype; | |
2504 | } | |
c906108c | 2505 | } |
7ba81444 MS |
2506 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
2507 | types. */ | |
74a9bb82 | 2508 | else if (TYPE_STUB (type) && !currently_reading_symtab) |
c906108c | 2509 | { |
a737d952 | 2510 | const char *name = TYPE_NAME (type); |
e86ca25f TT |
2511 | /* FIXME: shouldn't we look in STRUCT_DOMAIN and/or VAR_DOMAIN |
2512 | as appropriate? */ | |
c906108c | 2513 | struct symbol *sym; |
d8734c88 | 2514 | |
c906108c SS |
2515 | if (name == NULL) |
2516 | { | |
23136709 | 2517 | stub_noname_complaint (); |
92163a10 | 2518 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 2519 | } |
d12307c1 | 2520 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0).symbol; |
c906108c | 2521 | if (sym) |
c26f2453 JB |
2522 | { |
2523 | /* Same as above for opaque types, we can replace the stub | |
92163a10 | 2524 | with the complete type only if they are in the same |
c26f2453 JB |
2525 | objfile. */ |
2526 | if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type)) | |
92163a10 JK |
2527 | type = make_qualified_type (SYMBOL_TYPE (sym), |
2528 | TYPE_INSTANCE_FLAGS (type), | |
2529 | type); | |
c26f2453 JB |
2530 | else |
2531 | type = SYMBOL_TYPE (sym); | |
2532 | } | |
c906108c SS |
2533 | } |
2534 | ||
74a9bb82 | 2535 | if (TYPE_TARGET_STUB (type)) |
c906108c | 2536 | { |
c906108c SS |
2537 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); |
2538 | ||
74a9bb82 | 2539 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
c5aa993b | 2540 | { |
73e2eb35 | 2541 | /* Nothing we can do. */ |
c5aa993b | 2542 | } |
c906108c SS |
2543 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
2544 | { | |
2545 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
876cecd0 | 2546 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
2547 | } |
2548 | } | |
92163a10 JK |
2549 | |
2550 | type = make_qualified_type (type, instance_flags, NULL); | |
2551 | ||
7ba81444 | 2552 | /* Cache TYPE_LENGTH for future use. */ |
c906108c | 2553 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
92163a10 | 2554 | |
c906108c SS |
2555 | return type; |
2556 | } | |
2557 | ||
7ba81444 | 2558 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
48319d1f | 2559 | occurs, silently return a void type. */ |
c91ecb25 | 2560 | |
b9362cc7 | 2561 | static struct type * |
48319d1f | 2562 | safe_parse_type (struct gdbarch *gdbarch, char *p, int length) |
c91ecb25 ND |
2563 | { |
2564 | struct ui_file *saved_gdb_stderr; | |
34365054 | 2565 | struct type *type = NULL; /* Initialize to keep gcc happy. */ |
c91ecb25 | 2566 | |
7ba81444 | 2567 | /* Suppress error messages. */ |
c91ecb25 | 2568 | saved_gdb_stderr = gdb_stderr; |
d7e74731 | 2569 | gdb_stderr = &null_stream; |
c91ecb25 | 2570 | |
7ba81444 | 2571 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
a70b8144 | 2572 | try |
8e7b59a5 KS |
2573 | { |
2574 | type = parse_and_eval_type (p, length); | |
2575 | } | |
230d2906 | 2576 | catch (const gdb_exception_error &except) |
492d29ea PA |
2577 | { |
2578 | type = builtin_type (gdbarch)->builtin_void; | |
2579 | } | |
c91ecb25 | 2580 | |
7ba81444 | 2581 | /* Stop suppressing error messages. */ |
c91ecb25 ND |
2582 | gdb_stderr = saved_gdb_stderr; |
2583 | ||
2584 | return type; | |
2585 | } | |
2586 | ||
c906108c SS |
2587 | /* Ugly hack to convert method stubs into method types. |
2588 | ||
7ba81444 MS |
2589 | He ain't kiddin'. This demangles the name of the method into a |
2590 | string including argument types, parses out each argument type, | |
2591 | generates a string casting a zero to that type, evaluates the | |
2592 | string, and stuffs the resulting type into an argtype vector!!! | |
2593 | Then it knows the type of the whole function (including argument | |
2594 | types for overloading), which info used to be in the stab's but was | |
2595 | removed to hack back the space required for them. */ | |
c906108c | 2596 | |
de17c821 | 2597 | static void |
fba45db2 | 2598 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c | 2599 | { |
50810684 | 2600 | struct gdbarch *gdbarch = get_type_arch (type); |
c906108c SS |
2601 | struct fn_field *f; |
2602 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
8de20a37 TT |
2603 | char *demangled_name = gdb_demangle (mangled_name, |
2604 | DMGL_PARAMS | DMGL_ANSI); | |
c906108c SS |
2605 | char *argtypetext, *p; |
2606 | int depth = 0, argcount = 1; | |
ad2f7632 | 2607 | struct field *argtypes; |
c906108c SS |
2608 | struct type *mtype; |
2609 | ||
2610 | /* Make sure we got back a function string that we can use. */ | |
2611 | if (demangled_name) | |
2612 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
2613 | else |
2614 | p = NULL; | |
c906108c SS |
2615 | |
2616 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
2617 | error (_("Internal: Cannot demangle mangled name `%s'."), |
2618 | mangled_name); | |
c906108c SS |
2619 | |
2620 | /* Now, read in the parameters that define this type. */ | |
2621 | p += 1; | |
2622 | argtypetext = p; | |
2623 | while (*p) | |
2624 | { | |
070ad9f0 | 2625 | if (*p == '(' || *p == '<') |
c906108c SS |
2626 | { |
2627 | depth += 1; | |
2628 | } | |
070ad9f0 | 2629 | else if (*p == ')' || *p == '>') |
c906108c SS |
2630 | { |
2631 | depth -= 1; | |
2632 | } | |
2633 | else if (*p == ',' && depth == 0) | |
2634 | { | |
2635 | argcount += 1; | |
2636 | } | |
2637 | ||
2638 | p += 1; | |
2639 | } | |
2640 | ||
ad2f7632 | 2641 | /* If we read one argument and it was ``void'', don't count it. */ |
61012eef | 2642 | if (startswith (argtypetext, "(void)")) |
ad2f7632 | 2643 | argcount -= 1; |
c906108c | 2644 | |
ad2f7632 DJ |
2645 | /* We need one extra slot, for the THIS pointer. */ |
2646 | ||
2647 | argtypes = (struct field *) | |
2648 | TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); | |
c906108c | 2649 | p = argtypetext; |
4a1970e4 DJ |
2650 | |
2651 | /* Add THIS pointer for non-static methods. */ | |
2652 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
2653 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
2654 | argcount = 0; | |
2655 | else | |
2656 | { | |
ad2f7632 | 2657 | argtypes[0].type = lookup_pointer_type (type); |
4a1970e4 DJ |
2658 | argcount = 1; |
2659 | } | |
c906108c | 2660 | |
0963b4bd | 2661 | if (*p != ')') /* () means no args, skip while. */ |
c906108c SS |
2662 | { |
2663 | depth = 0; | |
2664 | while (*p) | |
2665 | { | |
2666 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
2667 | { | |
ad2f7632 DJ |
2668 | /* Avoid parsing of ellipsis, they will be handled below. |
2669 | Also avoid ``void'' as above. */ | |
2670 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 | |
2671 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 2672 | { |
ad2f7632 | 2673 | argtypes[argcount].type = |
48319d1f | 2674 | safe_parse_type (gdbarch, argtypetext, p - argtypetext); |
c906108c SS |
2675 | argcount += 1; |
2676 | } | |
2677 | argtypetext = p + 1; | |
2678 | } | |
2679 | ||
070ad9f0 | 2680 | if (*p == '(' || *p == '<') |
c906108c SS |
2681 | { |
2682 | depth += 1; | |
2683 | } | |
070ad9f0 | 2684 | else if (*p == ')' || *p == '>') |
c906108c SS |
2685 | { |
2686 | depth -= 1; | |
2687 | } | |
2688 | ||
2689 | p += 1; | |
2690 | } | |
2691 | } | |
2692 | ||
c906108c SS |
2693 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
2694 | ||
2695 | /* Now update the old "stub" type into a real type. */ | |
2696 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
09e2d7c7 DE |
2697 | /* MTYPE may currently be a function (TYPE_CODE_FUNC). |
2698 | We want a method (TYPE_CODE_METHOD). */ | |
2699 | smash_to_method_type (mtype, type, TYPE_TARGET_TYPE (mtype), | |
2700 | argtypes, argcount, p[-2] == '.'); | |
876cecd0 | 2701 | TYPE_STUB (mtype) = 0; |
c906108c | 2702 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
ad2f7632 DJ |
2703 | |
2704 | xfree (demangled_name); | |
c906108c SS |
2705 | } |
2706 | ||
7ba81444 MS |
2707 | /* This is the external interface to check_stub_method, above. This |
2708 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
2709 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
2710 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
2711 | correct. | |
de17c821 DJ |
2712 | |
2713 | This function unfortunately can not die until stabs do. */ | |
2714 | ||
2715 | void | |
2716 | check_stub_method_group (struct type *type, int method_id) | |
2717 | { | |
2718 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
2719 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
de17c821 | 2720 | |
041be526 SM |
2721 | for (int j = 0; j < len; j++) |
2722 | { | |
2723 | if (TYPE_FN_FIELD_STUB (f, j)) | |
de17c821 | 2724 | check_stub_method (type, method_id, j); |
de17c821 DJ |
2725 | } |
2726 | } | |
2727 | ||
9655fd1a JK |
2728 | /* Ensure it is in .rodata (if available) by workarounding GCC PR 44690. */ |
2729 | const struct cplus_struct_type cplus_struct_default = { }; | |
c906108c SS |
2730 | |
2731 | void | |
fba45db2 | 2732 | allocate_cplus_struct_type (struct type *type) |
c906108c | 2733 | { |
b4ba55a1 JB |
2734 | if (HAVE_CPLUS_STRUCT (type)) |
2735 | /* Structure was already allocated. Nothing more to do. */ | |
2736 | return; | |
2737 | ||
2738 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF; | |
2739 | TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
2740 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
2741 | *(TYPE_RAW_CPLUS_SPECIFIC (type)) = cplus_struct_default; | |
ae6ae975 | 2742 | set_type_vptr_fieldno (type, -1); |
c906108c SS |
2743 | } |
2744 | ||
b4ba55a1 JB |
2745 | const struct gnat_aux_type gnat_aux_default = |
2746 | { NULL }; | |
2747 | ||
2748 | /* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF, | |
2749 | and allocate the associated gnat-specific data. The gnat-specific | |
2750 | data is also initialized to gnat_aux_default. */ | |
5212577a | 2751 | |
b4ba55a1 JB |
2752 | void |
2753 | allocate_gnat_aux_type (struct type *type) | |
2754 | { | |
2755 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF; | |
2756 | TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) | |
2757 | TYPE_ALLOC (type, sizeof (struct gnat_aux_type)); | |
2758 | *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default; | |
2759 | } | |
2760 | ||
ae438bc5 UW |
2761 | /* Helper function to initialize a newly allocated type. Set type code |
2762 | to CODE and initialize the type-specific fields accordingly. */ | |
2763 | ||
2764 | static void | |
2765 | set_type_code (struct type *type, enum type_code code) | |
2766 | { | |
2767 | TYPE_CODE (type) = code; | |
2768 | ||
2769 | switch (code) | |
2770 | { | |
2771 | case TYPE_CODE_STRUCT: | |
2772 | case TYPE_CODE_UNION: | |
2773 | case TYPE_CODE_NAMESPACE: | |
2774 | INIT_CPLUS_SPECIFIC (type); | |
2775 | break; | |
2776 | case TYPE_CODE_FLT: | |
2777 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT; | |
2778 | break; | |
2779 | case TYPE_CODE_FUNC: | |
2780 | INIT_FUNC_SPECIFIC (type); | |
2781 | break; | |
2782 | } | |
2783 | } | |
2784 | ||
19f392bc UW |
2785 | /* Helper function to verify floating-point format and size. |
2786 | BIT is the type size in bits; if BIT equals -1, the size is | |
2787 | determined by the floatformat. Returns size to be used. */ | |
2788 | ||
2789 | static int | |
0db7851f | 2790 | verify_floatformat (int bit, const struct floatformat *floatformat) |
19f392bc | 2791 | { |
0db7851f | 2792 | gdb_assert (floatformat != NULL); |
9b790ce7 | 2793 | |
19f392bc | 2794 | if (bit == -1) |
0db7851f | 2795 | bit = floatformat->totalsize; |
19f392bc | 2796 | |
0db7851f UW |
2797 | gdb_assert (bit >= 0); |
2798 | gdb_assert (bit >= floatformat->totalsize); | |
19f392bc UW |
2799 | |
2800 | return bit; | |
2801 | } | |
2802 | ||
0db7851f UW |
2803 | /* Return the floating-point format for a floating-point variable of |
2804 | type TYPE. */ | |
2805 | ||
2806 | const struct floatformat * | |
2807 | floatformat_from_type (const struct type *type) | |
2808 | { | |
2809 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLT); | |
2810 | gdb_assert (TYPE_FLOATFORMAT (type)); | |
2811 | return TYPE_FLOATFORMAT (type); | |
2812 | } | |
2813 | ||
c906108c SS |
2814 | /* Helper function to initialize the standard scalar types. |
2815 | ||
86f62fd7 TT |
2816 | If NAME is non-NULL, then it is used to initialize the type name. |
2817 | Note that NAME is not copied; it is required to have a lifetime at | |
2818 | least as long as OBJFILE. */ | |
c906108c SS |
2819 | |
2820 | struct type * | |
77b7c781 | 2821 | init_type (struct objfile *objfile, enum type_code code, int bit, |
19f392bc | 2822 | const char *name) |
c906108c | 2823 | { |
52f0bd74 | 2824 | struct type *type; |
c906108c SS |
2825 | |
2826 | type = alloc_type (objfile); | |
ae438bc5 | 2827 | set_type_code (type, code); |
77b7c781 UW |
2828 | gdb_assert ((bit % TARGET_CHAR_BIT) == 0); |
2829 | TYPE_LENGTH (type) = bit / TARGET_CHAR_BIT; | |
86f62fd7 | 2830 | TYPE_NAME (type) = name; |
c906108c | 2831 | |
c16abbde | 2832 | return type; |
c906108c | 2833 | } |
19f392bc | 2834 | |
46a4882b PA |
2835 | /* Allocate a TYPE_CODE_ERROR type structure associated with OBJFILE, |
2836 | to use with variables that have no debug info. NAME is the type | |
2837 | name. */ | |
2838 | ||
2839 | static struct type * | |
2840 | init_nodebug_var_type (struct objfile *objfile, const char *name) | |
2841 | { | |
2842 | return init_type (objfile, TYPE_CODE_ERROR, 0, name); | |
2843 | } | |
2844 | ||
19f392bc UW |
2845 | /* Allocate a TYPE_CODE_INT type structure associated with OBJFILE. |
2846 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
2847 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
2848 | ||
2849 | struct type * | |
2850 | init_integer_type (struct objfile *objfile, | |
2851 | int bit, int unsigned_p, const char *name) | |
2852 | { | |
2853 | struct type *t; | |
2854 | ||
77b7c781 | 2855 | t = init_type (objfile, TYPE_CODE_INT, bit, name); |
19f392bc UW |
2856 | if (unsigned_p) |
2857 | TYPE_UNSIGNED (t) = 1; | |
2858 | ||
2859 | return t; | |
2860 | } | |
2861 | ||
2862 | /* Allocate a TYPE_CODE_CHAR type structure associated with OBJFILE. | |
2863 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
2864 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
2865 | ||
2866 | struct type * | |
2867 | init_character_type (struct objfile *objfile, | |
2868 | int bit, int unsigned_p, const char *name) | |
2869 | { | |
2870 | struct type *t; | |
2871 | ||
77b7c781 | 2872 | t = init_type (objfile, TYPE_CODE_CHAR, bit, name); |
19f392bc UW |
2873 | if (unsigned_p) |
2874 | TYPE_UNSIGNED (t) = 1; | |
2875 | ||
2876 | return t; | |
2877 | } | |
2878 | ||
2879 | /* Allocate a TYPE_CODE_BOOL type structure associated with OBJFILE. | |
2880 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
2881 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
2882 | ||
2883 | struct type * | |
2884 | init_boolean_type (struct objfile *objfile, | |
2885 | int bit, int unsigned_p, const char *name) | |
2886 | { | |
2887 | struct type *t; | |
2888 | ||
77b7c781 | 2889 | t = init_type (objfile, TYPE_CODE_BOOL, bit, name); |
19f392bc UW |
2890 | if (unsigned_p) |
2891 | TYPE_UNSIGNED (t) = 1; | |
2892 | ||
2893 | return t; | |
2894 | } | |
2895 | ||
2896 | /* Allocate a TYPE_CODE_FLT type structure associated with OBJFILE. | |
2897 | BIT is the type size in bits; if BIT equals -1, the size is | |
2898 | determined by the floatformat. NAME is the type name. Set the | |
2899 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
2900 | ||
2901 | struct type * | |
2902 | init_float_type (struct objfile *objfile, | |
2903 | int bit, const char *name, | |
2904 | const struct floatformat **floatformats) | |
2905 | { | |
0db7851f UW |
2906 | struct gdbarch *gdbarch = get_objfile_arch (objfile); |
2907 | const struct floatformat *fmt = floatformats[gdbarch_byte_order (gdbarch)]; | |
19f392bc UW |
2908 | struct type *t; |
2909 | ||
0db7851f | 2910 | bit = verify_floatformat (bit, fmt); |
77b7c781 | 2911 | t = init_type (objfile, TYPE_CODE_FLT, bit, name); |
0db7851f | 2912 | TYPE_FLOATFORMAT (t) = fmt; |
19f392bc UW |
2913 | |
2914 | return t; | |
2915 | } | |
2916 | ||
2917 | /* Allocate a TYPE_CODE_DECFLOAT type structure associated with OBJFILE. | |
2918 | BIT is the type size in bits. NAME is the type name. */ | |
2919 | ||
2920 | struct type * | |
2921 | init_decfloat_type (struct objfile *objfile, int bit, const char *name) | |
2922 | { | |
2923 | struct type *t; | |
2924 | ||
77b7c781 | 2925 | t = init_type (objfile, TYPE_CODE_DECFLOAT, bit, name); |
19f392bc UW |
2926 | return t; |
2927 | } | |
2928 | ||
2929 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with OBJFILE. | |
2930 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
2931 | ||
2932 | struct type * | |
2933 | init_complex_type (struct objfile *objfile, | |
2934 | const char *name, struct type *target_type) | |
2935 | { | |
2936 | struct type *t; | |
2937 | ||
2938 | t = init_type (objfile, TYPE_CODE_COMPLEX, | |
77b7c781 | 2939 | 2 * TYPE_LENGTH (target_type) * TARGET_CHAR_BIT, name); |
19f392bc UW |
2940 | TYPE_TARGET_TYPE (t) = target_type; |
2941 | return t; | |
2942 | } | |
2943 | ||
2944 | /* Allocate a TYPE_CODE_PTR type structure associated with OBJFILE. | |
2945 | BIT is the pointer type size in bits. NAME is the type name. | |
2946 | TARGET_TYPE is the pointer target type. Always sets the pointer type's | |
2947 | TYPE_UNSIGNED flag. */ | |
2948 | ||
2949 | struct type * | |
2950 | init_pointer_type (struct objfile *objfile, | |
2951 | int bit, const char *name, struct type *target_type) | |
2952 | { | |
2953 | struct type *t; | |
2954 | ||
77b7c781 | 2955 | t = init_type (objfile, TYPE_CODE_PTR, bit, name); |
19f392bc UW |
2956 | TYPE_TARGET_TYPE (t) = target_type; |
2957 | TYPE_UNSIGNED (t) = 1; | |
2958 | return t; | |
2959 | } | |
2960 | ||
2b4424c3 TT |
2961 | /* See gdbtypes.h. */ |
2962 | ||
2963 | unsigned | |
2964 | type_raw_align (struct type *type) | |
2965 | { | |
2966 | if (type->align_log2 != 0) | |
2967 | return 1 << (type->align_log2 - 1); | |
2968 | return 0; | |
2969 | } | |
2970 | ||
2971 | /* See gdbtypes.h. */ | |
2972 | ||
2973 | unsigned | |
2974 | type_align (struct type *type) | |
2975 | { | |
5561fc30 | 2976 | /* Check alignment provided in the debug information. */ |
2b4424c3 TT |
2977 | unsigned raw_align = type_raw_align (type); |
2978 | if (raw_align != 0) | |
2979 | return raw_align; | |
2980 | ||
5561fc30 AB |
2981 | /* Allow the architecture to provide an alignment. */ |
2982 | struct gdbarch *arch = get_type_arch (type); | |
2983 | ULONGEST align = gdbarch_type_align (arch, type); | |
2984 | if (align != 0) | |
2985 | return align; | |
2986 | ||
2b4424c3 TT |
2987 | switch (TYPE_CODE (type)) |
2988 | { | |
2989 | case TYPE_CODE_PTR: | |
2990 | case TYPE_CODE_FUNC: | |
2991 | case TYPE_CODE_FLAGS: | |
2992 | case TYPE_CODE_INT: | |
75ba10dc | 2993 | case TYPE_CODE_RANGE: |
2b4424c3 TT |
2994 | case TYPE_CODE_FLT: |
2995 | case TYPE_CODE_ENUM: | |
2996 | case TYPE_CODE_REF: | |
2997 | case TYPE_CODE_RVALUE_REF: | |
2998 | case TYPE_CODE_CHAR: | |
2999 | case TYPE_CODE_BOOL: | |
3000 | case TYPE_CODE_DECFLOAT: | |
70cd633e AB |
3001 | case TYPE_CODE_METHODPTR: |
3002 | case TYPE_CODE_MEMBERPTR: | |
5561fc30 | 3003 | align = type_length_units (check_typedef (type)); |
2b4424c3 TT |
3004 | break; |
3005 | ||
3006 | case TYPE_CODE_ARRAY: | |
3007 | case TYPE_CODE_COMPLEX: | |
3008 | case TYPE_CODE_TYPEDEF: | |
3009 | align = type_align (TYPE_TARGET_TYPE (type)); | |
3010 | break; | |
3011 | ||
3012 | case TYPE_CODE_STRUCT: | |
3013 | case TYPE_CODE_UNION: | |
3014 | { | |
41077b66 | 3015 | int number_of_non_static_fields = 0; |
2b4424c3 TT |
3016 | for (unsigned i = 0; i < TYPE_NFIELDS (type); ++i) |
3017 | { | |
bf9a735e | 3018 | if (!field_is_static (&TYPE_FIELD (type, i))) |
2b4424c3 | 3019 | { |
41077b66 | 3020 | number_of_non_static_fields++; |
bf9a735e AB |
3021 | ULONGEST f_align = type_align (TYPE_FIELD_TYPE (type, i)); |
3022 | if (f_align == 0) | |
3023 | { | |
3024 | /* Don't pretend we know something we don't. */ | |
3025 | align = 0; | |
3026 | break; | |
3027 | } | |
3028 | if (f_align > align) | |
3029 | align = f_align; | |
2b4424c3 | 3030 | } |
2b4424c3 | 3031 | } |
41077b66 AB |
3032 | /* A struct with no fields, or with only static fields has an |
3033 | alignment of 1. */ | |
3034 | if (number_of_non_static_fields == 0) | |
3035 | align = 1; | |
2b4424c3 TT |
3036 | } |
3037 | break; | |
3038 | ||
3039 | case TYPE_CODE_SET: | |
2b4424c3 TT |
3040 | case TYPE_CODE_STRING: |
3041 | /* Not sure what to do here, and these can't appear in C or C++ | |
3042 | anyway. */ | |
3043 | break; | |
3044 | ||
2b4424c3 TT |
3045 | case TYPE_CODE_VOID: |
3046 | align = 1; | |
3047 | break; | |
3048 | ||
3049 | case TYPE_CODE_ERROR: | |
3050 | case TYPE_CODE_METHOD: | |
3051 | default: | |
3052 | break; | |
3053 | } | |
3054 | ||
3055 | if ((align & (align - 1)) != 0) | |
3056 | { | |
3057 | /* Not a power of 2, so pass. */ | |
3058 | align = 0; | |
3059 | } | |
3060 | ||
3061 | return align; | |
3062 | } | |
3063 | ||
3064 | /* See gdbtypes.h. */ | |
3065 | ||
3066 | bool | |
3067 | set_type_align (struct type *type, ULONGEST align) | |
3068 | { | |
3069 | /* Must be a power of 2. Zero is ok. */ | |
3070 | gdb_assert ((align & (align - 1)) == 0); | |
3071 | ||
3072 | unsigned result = 0; | |
3073 | while (align != 0) | |
3074 | { | |
3075 | ++result; | |
3076 | align >>= 1; | |
3077 | } | |
3078 | ||
3079 | if (result >= (1 << TYPE_ALIGN_BITS)) | |
3080 | return false; | |
3081 | ||
3082 | type->align_log2 = result; | |
3083 | return true; | |
3084 | } | |
3085 | ||
5212577a DE |
3086 | \f |
3087 | /* Queries on types. */ | |
c906108c | 3088 | |
c906108c | 3089 | int |
fba45db2 | 3090 | can_dereference (struct type *t) |
c906108c | 3091 | { |
7ba81444 MS |
3092 | /* FIXME: Should we return true for references as well as |
3093 | pointers? */ | |
f168693b | 3094 | t = check_typedef (t); |
c906108c SS |
3095 | return |
3096 | (t != NULL | |
3097 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
3098 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
3099 | } | |
3100 | ||
adf40b2e | 3101 | int |
fba45db2 | 3102 | is_integral_type (struct type *t) |
adf40b2e | 3103 | { |
f168693b | 3104 | t = check_typedef (t); |
adf40b2e JM |
3105 | return |
3106 | ((t != NULL) | |
d4f3574e SS |
3107 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
3108 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
4f2aea11 | 3109 | || (TYPE_CODE (t) == TYPE_CODE_FLAGS) |
d4f3574e SS |
3110 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) |
3111 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
3112 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
3113 | } |
3114 | ||
70100014 UW |
3115 | int |
3116 | is_floating_type (struct type *t) | |
3117 | { | |
3118 | t = check_typedef (t); | |
3119 | return | |
3120 | ((t != NULL) | |
3121 | && ((TYPE_CODE (t) == TYPE_CODE_FLT) | |
3122 | || (TYPE_CODE (t) == TYPE_CODE_DECFLOAT))); | |
3123 | } | |
3124 | ||
e09342b5 TJB |
3125 | /* Return true if TYPE is scalar. */ |
3126 | ||
220475ed | 3127 | int |
e09342b5 TJB |
3128 | is_scalar_type (struct type *type) |
3129 | { | |
f168693b | 3130 | type = check_typedef (type); |
e09342b5 TJB |
3131 | |
3132 | switch (TYPE_CODE (type)) | |
3133 | { | |
3134 | case TYPE_CODE_ARRAY: | |
3135 | case TYPE_CODE_STRUCT: | |
3136 | case TYPE_CODE_UNION: | |
3137 | case TYPE_CODE_SET: | |
3138 | case TYPE_CODE_STRING: | |
e09342b5 TJB |
3139 | return 0; |
3140 | default: | |
3141 | return 1; | |
3142 | } | |
3143 | } | |
3144 | ||
3145 | /* Return true if T is scalar, or a composite type which in practice has | |
90e4670f TJB |
3146 | the memory layout of a scalar type. E.g., an array or struct with only |
3147 | one scalar element inside it, or a union with only scalar elements. */ | |
e09342b5 TJB |
3148 | |
3149 | int | |
3150 | is_scalar_type_recursive (struct type *t) | |
3151 | { | |
f168693b | 3152 | t = check_typedef (t); |
e09342b5 TJB |
3153 | |
3154 | if (is_scalar_type (t)) | |
3155 | return 1; | |
3156 | /* Are we dealing with an array or string of known dimensions? */ | |
3157 | else if ((TYPE_CODE (t) == TYPE_CODE_ARRAY | |
3158 | || TYPE_CODE (t) == TYPE_CODE_STRING) && TYPE_NFIELDS (t) == 1 | |
3159 | && TYPE_CODE (TYPE_INDEX_TYPE (t)) == TYPE_CODE_RANGE) | |
3160 | { | |
3161 | LONGEST low_bound, high_bound; | |
3162 | struct type *elt_type = check_typedef (TYPE_TARGET_TYPE (t)); | |
3163 | ||
3164 | get_discrete_bounds (TYPE_INDEX_TYPE (t), &low_bound, &high_bound); | |
3165 | ||
3166 | return high_bound == low_bound && is_scalar_type_recursive (elt_type); | |
3167 | } | |
3168 | /* Are we dealing with a struct with one element? */ | |
3169 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT && TYPE_NFIELDS (t) == 1) | |
3170 | return is_scalar_type_recursive (TYPE_FIELD_TYPE (t, 0)); | |
3171 | else if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
3172 | { | |
3173 | int i, n = TYPE_NFIELDS (t); | |
3174 | ||
3175 | /* If all elements of the union are scalar, then the union is scalar. */ | |
3176 | for (i = 0; i < n; i++) | |
3177 | if (!is_scalar_type_recursive (TYPE_FIELD_TYPE (t, i))) | |
3178 | return 0; | |
3179 | ||
3180 | return 1; | |
3181 | } | |
3182 | ||
3183 | return 0; | |
3184 | } | |
3185 | ||
6c659fc2 SC |
3186 | /* Return true is T is a class or a union. False otherwise. */ |
3187 | ||
3188 | int | |
3189 | class_or_union_p (const struct type *t) | |
3190 | { | |
3191 | return (TYPE_CODE (t) == TYPE_CODE_STRUCT | |
3192 | || TYPE_CODE (t) == TYPE_CODE_UNION); | |
3193 | } | |
3194 | ||
4e8f195d TT |
3195 | /* A helper function which returns true if types A and B represent the |
3196 | "same" class type. This is true if the types have the same main | |
3197 | type, or the same name. */ | |
3198 | ||
3199 | int | |
3200 | class_types_same_p (const struct type *a, const struct type *b) | |
3201 | { | |
3202 | return (TYPE_MAIN_TYPE (a) == TYPE_MAIN_TYPE (b) | |
3203 | || (TYPE_NAME (a) && TYPE_NAME (b) | |
3204 | && !strcmp (TYPE_NAME (a), TYPE_NAME (b)))); | |
3205 | } | |
3206 | ||
a9d5ef47 SW |
3207 | /* If BASE is an ancestor of DCLASS return the distance between them. |
3208 | otherwise return -1; | |
3209 | eg: | |
3210 | ||
3211 | class A {}; | |
3212 | class B: public A {}; | |
3213 | class C: public B {}; | |
3214 | class D: C {}; | |
3215 | ||
3216 | distance_to_ancestor (A, A, 0) = 0 | |
3217 | distance_to_ancestor (A, B, 0) = 1 | |
3218 | distance_to_ancestor (A, C, 0) = 2 | |
3219 | distance_to_ancestor (A, D, 0) = 3 | |
3220 | ||
3221 | If PUBLIC is 1 then only public ancestors are considered, | |
3222 | and the function returns the distance only if BASE is a public ancestor | |
3223 | of DCLASS. | |
3224 | Eg: | |
3225 | ||
0963b4bd | 3226 | distance_to_ancestor (A, D, 1) = -1. */ |
c906108c | 3227 | |
0526b37a | 3228 | static int |
fe978cb0 | 3229 | distance_to_ancestor (struct type *base, struct type *dclass, int is_public) |
c906108c SS |
3230 | { |
3231 | int i; | |
a9d5ef47 | 3232 | int d; |
c5aa993b | 3233 | |
f168693b SM |
3234 | base = check_typedef (base); |
3235 | dclass = check_typedef (dclass); | |
c906108c | 3236 | |
4e8f195d | 3237 | if (class_types_same_p (base, dclass)) |
a9d5ef47 | 3238 | return 0; |
c906108c SS |
3239 | |
3240 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
4e8f195d | 3241 | { |
fe978cb0 | 3242 | if (is_public && ! BASETYPE_VIA_PUBLIC (dclass, i)) |
0526b37a SW |
3243 | continue; |
3244 | ||
fe978cb0 | 3245 | d = distance_to_ancestor (base, TYPE_BASECLASS (dclass, i), is_public); |
a9d5ef47 SW |
3246 | if (d >= 0) |
3247 | return 1 + d; | |
4e8f195d | 3248 | } |
c906108c | 3249 | |
a9d5ef47 | 3250 | return -1; |
c906108c | 3251 | } |
4e8f195d | 3252 | |
0526b37a SW |
3253 | /* Check whether BASE is an ancestor or base class or DCLASS |
3254 | Return 1 if so, and 0 if not. | |
3255 | Note: If BASE and DCLASS are of the same type, this function | |
3256 | will return 1. So for some class A, is_ancestor (A, A) will | |
3257 | return 1. */ | |
3258 | ||
3259 | int | |
3260 | is_ancestor (struct type *base, struct type *dclass) | |
3261 | { | |
a9d5ef47 | 3262 | return distance_to_ancestor (base, dclass, 0) >= 0; |
0526b37a SW |
3263 | } |
3264 | ||
4e8f195d TT |
3265 | /* Like is_ancestor, but only returns true when BASE is a public |
3266 | ancestor of DCLASS. */ | |
3267 | ||
3268 | int | |
3269 | is_public_ancestor (struct type *base, struct type *dclass) | |
3270 | { | |
a9d5ef47 | 3271 | return distance_to_ancestor (base, dclass, 1) >= 0; |
4e8f195d TT |
3272 | } |
3273 | ||
3274 | /* A helper function for is_unique_ancestor. */ | |
3275 | ||
3276 | static int | |
3277 | is_unique_ancestor_worker (struct type *base, struct type *dclass, | |
3278 | int *offset, | |
8af8e3bc PA |
3279 | const gdb_byte *valaddr, int embedded_offset, |
3280 | CORE_ADDR address, struct value *val) | |
4e8f195d TT |
3281 | { |
3282 | int i, count = 0; | |
3283 | ||
f168693b SM |
3284 | base = check_typedef (base); |
3285 | dclass = check_typedef (dclass); | |
4e8f195d TT |
3286 | |
3287 | for (i = 0; i < TYPE_N_BASECLASSES (dclass) && count < 2; ++i) | |
3288 | { | |
8af8e3bc PA |
3289 | struct type *iter; |
3290 | int this_offset; | |
4e8f195d | 3291 | |
8af8e3bc PA |
3292 | iter = check_typedef (TYPE_BASECLASS (dclass, i)); |
3293 | ||
3294 | this_offset = baseclass_offset (dclass, i, valaddr, embedded_offset, | |
3295 | address, val); | |
4e8f195d TT |
3296 | |
3297 | if (class_types_same_p (base, iter)) | |
3298 | { | |
3299 | /* If this is the first subclass, set *OFFSET and set count | |
3300 | to 1. Otherwise, if this is at the same offset as | |
3301 | previous instances, do nothing. Otherwise, increment | |
3302 | count. */ | |
3303 | if (*offset == -1) | |
3304 | { | |
3305 | *offset = this_offset; | |
3306 | count = 1; | |
3307 | } | |
3308 | else if (this_offset == *offset) | |
3309 | { | |
3310 | /* Nothing. */ | |
3311 | } | |
3312 | else | |
3313 | ++count; | |
3314 | } | |
3315 | else | |
3316 | count += is_unique_ancestor_worker (base, iter, offset, | |
8af8e3bc PA |
3317 | valaddr, |
3318 | embedded_offset + this_offset, | |
3319 | address, val); | |
4e8f195d TT |
3320 | } |
3321 | ||
3322 | return count; | |
3323 | } | |
3324 | ||
3325 | /* Like is_ancestor, but only returns true if BASE is a unique base | |
3326 | class of the type of VAL. */ | |
3327 | ||
3328 | int | |
3329 | is_unique_ancestor (struct type *base, struct value *val) | |
3330 | { | |
3331 | int offset = -1; | |
3332 | ||
3333 | return is_unique_ancestor_worker (base, value_type (val), &offset, | |
8af8e3bc PA |
3334 | value_contents_for_printing (val), |
3335 | value_embedded_offset (val), | |
3336 | value_address (val), val) == 1; | |
4e8f195d TT |
3337 | } |
3338 | ||
c906108c | 3339 | \f |
5212577a | 3340 | /* Overload resolution. */ |
c906108c | 3341 | |
6403aeea SW |
3342 | /* Return the sum of the rank of A with the rank of B. */ |
3343 | ||
3344 | struct rank | |
3345 | sum_ranks (struct rank a, struct rank b) | |
3346 | { | |
3347 | struct rank c; | |
3348 | c.rank = a.rank + b.rank; | |
a9d5ef47 | 3349 | c.subrank = a.subrank + b.subrank; |
6403aeea SW |
3350 | return c; |
3351 | } | |
3352 | ||
3353 | /* Compare rank A and B and return: | |
3354 | 0 if a = b | |
3355 | 1 if a is better than b | |
3356 | -1 if b is better than a. */ | |
3357 | ||
3358 | int | |
3359 | compare_ranks (struct rank a, struct rank b) | |
3360 | { | |
3361 | if (a.rank == b.rank) | |
a9d5ef47 SW |
3362 | { |
3363 | if (a.subrank == b.subrank) | |
3364 | return 0; | |
3365 | if (a.subrank < b.subrank) | |
3366 | return 1; | |
3367 | if (a.subrank > b.subrank) | |
3368 | return -1; | |
3369 | } | |
6403aeea SW |
3370 | |
3371 | if (a.rank < b.rank) | |
3372 | return 1; | |
3373 | ||
0963b4bd | 3374 | /* a.rank > b.rank */ |
6403aeea SW |
3375 | return -1; |
3376 | } | |
c5aa993b | 3377 | |
0963b4bd | 3378 | /* Functions for overload resolution begin here. */ |
c906108c SS |
3379 | |
3380 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
3381 | 0 => A and B are identical |
3382 | 1 => A and B are incomparable | |
3383 | 2 => A is better than B | |
3384 | 3 => A is worse than B */ | |
c906108c SS |
3385 | |
3386 | int | |
82ceee50 | 3387 | compare_badness (const badness_vector &a, const badness_vector &b) |
c906108c SS |
3388 | { |
3389 | int i; | |
3390 | int tmp; | |
c5aa993b JM |
3391 | short found_pos = 0; /* any positives in c? */ |
3392 | short found_neg = 0; /* any negatives in c? */ | |
3393 | ||
82ceee50 PA |
3394 | /* differing sizes => incomparable */ |
3395 | if (a.size () != b.size ()) | |
c906108c SS |
3396 | return 1; |
3397 | ||
c5aa993b | 3398 | /* Subtract b from a */ |
82ceee50 | 3399 | for (i = 0; i < a.size (); i++) |
c906108c | 3400 | { |
82ceee50 | 3401 | tmp = compare_ranks (b[i], a[i]); |
c906108c | 3402 | if (tmp > 0) |
c5aa993b | 3403 | found_pos = 1; |
c906108c | 3404 | else if (tmp < 0) |
c5aa993b | 3405 | found_neg = 1; |
c906108c SS |
3406 | } |
3407 | ||
3408 | if (found_pos) | |
3409 | { | |
3410 | if (found_neg) | |
c5aa993b | 3411 | return 1; /* incomparable */ |
c906108c | 3412 | else |
c5aa993b | 3413 | return 3; /* A > B */ |
c906108c | 3414 | } |
c5aa993b JM |
3415 | else |
3416 | /* no positives */ | |
c906108c SS |
3417 | { |
3418 | if (found_neg) | |
c5aa993b | 3419 | return 2; /* A < B */ |
c906108c | 3420 | else |
c5aa993b | 3421 | return 0; /* A == B */ |
c906108c SS |
3422 | } |
3423 | } | |
3424 | ||
6b1747cd | 3425 | /* Rank a function by comparing its parameter types (PARMS), to the |
82ceee50 PA |
3426 | types of an argument list (ARGS). Return the badness vector. This |
3427 | has ARGS.size() + 1 entries. */ | |
c906108c | 3428 | |
82ceee50 | 3429 | badness_vector |
6b1747cd PA |
3430 | rank_function (gdb::array_view<type *> parms, |
3431 | gdb::array_view<value *> args) | |
c906108c | 3432 | { |
82ceee50 PA |
3433 | /* add 1 for the length-match rank. */ |
3434 | badness_vector bv; | |
3435 | bv.reserve (1 + args.size ()); | |
c906108c SS |
3436 | |
3437 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 3438 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 3439 | |
c906108c | 3440 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
3441 | arguments and ellipsis parameter lists, we should consider those |
3442 | and rank the length-match more finely. */ | |
c906108c | 3443 | |
82ceee50 PA |
3444 | bv.push_back ((args.size () != parms.size ()) |
3445 | ? LENGTH_MISMATCH_BADNESS | |
3446 | : EXACT_MATCH_BADNESS); | |
c906108c | 3447 | |
0963b4bd | 3448 | /* Now rank all the parameters of the candidate function. */ |
82ceee50 PA |
3449 | size_t min_len = std::min (parms.size (), args.size ()); |
3450 | ||
3451 | for (size_t i = 0; i < min_len; i++) | |
3452 | bv.push_back (rank_one_type (parms[i], value_type (args[i]), | |
3453 | args[i])); | |
c906108c | 3454 | |
0963b4bd | 3455 | /* If more arguments than parameters, add dummy entries. */ |
82ceee50 PA |
3456 | for (size_t i = min_len; i < args.size (); i++) |
3457 | bv.push_back (TOO_FEW_PARAMS_BADNESS); | |
c906108c SS |
3458 | |
3459 | return bv; | |
3460 | } | |
3461 | ||
973ccf8b DJ |
3462 | /* Compare the names of two integer types, assuming that any sign |
3463 | qualifiers have been checked already. We do it this way because | |
3464 | there may be an "int" in the name of one of the types. */ | |
3465 | ||
3466 | static int | |
3467 | integer_types_same_name_p (const char *first, const char *second) | |
3468 | { | |
3469 | int first_p, second_p; | |
3470 | ||
7ba81444 MS |
3471 | /* If both are shorts, return 1; if neither is a short, keep |
3472 | checking. */ | |
973ccf8b DJ |
3473 | first_p = (strstr (first, "short") != NULL); |
3474 | second_p = (strstr (second, "short") != NULL); | |
3475 | if (first_p && second_p) | |
3476 | return 1; | |
3477 | if (first_p || second_p) | |
3478 | return 0; | |
3479 | ||
3480 | /* Likewise for long. */ | |
3481 | first_p = (strstr (first, "long") != NULL); | |
3482 | second_p = (strstr (second, "long") != NULL); | |
3483 | if (first_p && second_p) | |
3484 | return 1; | |
3485 | if (first_p || second_p) | |
3486 | return 0; | |
3487 | ||
3488 | /* Likewise for char. */ | |
3489 | first_p = (strstr (first, "char") != NULL); | |
3490 | second_p = (strstr (second, "char") != NULL); | |
3491 | if (first_p && second_p) | |
3492 | return 1; | |
3493 | if (first_p || second_p) | |
3494 | return 0; | |
3495 | ||
3496 | /* They must both be ints. */ | |
3497 | return 1; | |
3498 | } | |
3499 | ||
894882e3 TT |
3500 | /* Compares type A to type B. Returns true if they represent the same |
3501 | type, false otherwise. */ | |
7062b0a0 | 3502 | |
894882e3 | 3503 | bool |
7062b0a0 SW |
3504 | types_equal (struct type *a, struct type *b) |
3505 | { | |
3506 | /* Identical type pointers. */ | |
3507 | /* However, this still doesn't catch all cases of same type for b | |
3508 | and a. The reason is that builtin types are different from | |
3509 | the same ones constructed from the object. */ | |
3510 | if (a == b) | |
894882e3 | 3511 | return true; |
7062b0a0 SW |
3512 | |
3513 | /* Resolve typedefs */ | |
3514 | if (TYPE_CODE (a) == TYPE_CODE_TYPEDEF) | |
3515 | a = check_typedef (a); | |
3516 | if (TYPE_CODE (b) == TYPE_CODE_TYPEDEF) | |
3517 | b = check_typedef (b); | |
3518 | ||
3519 | /* If after resolving typedefs a and b are not of the same type | |
3520 | code then they are not equal. */ | |
3521 | if (TYPE_CODE (a) != TYPE_CODE (b)) | |
894882e3 | 3522 | return false; |
7062b0a0 SW |
3523 | |
3524 | /* If a and b are both pointers types or both reference types then | |
3525 | they are equal of the same type iff the objects they refer to are | |
3526 | of the same type. */ | |
3527 | if (TYPE_CODE (a) == TYPE_CODE_PTR | |
3528 | || TYPE_CODE (a) == TYPE_CODE_REF) | |
3529 | return types_equal (TYPE_TARGET_TYPE (a), | |
3530 | TYPE_TARGET_TYPE (b)); | |
3531 | ||
0963b4bd | 3532 | /* Well, damnit, if the names are exactly the same, I'll say they |
7062b0a0 SW |
3533 | are exactly the same. This happens when we generate method |
3534 | stubs. The types won't point to the same address, but they | |
0963b4bd | 3535 | really are the same. */ |
7062b0a0 SW |
3536 | |
3537 | if (TYPE_NAME (a) && TYPE_NAME (b) | |
3538 | && strcmp (TYPE_NAME (a), TYPE_NAME (b)) == 0) | |
894882e3 | 3539 | return true; |
7062b0a0 SW |
3540 | |
3541 | /* Check if identical after resolving typedefs. */ | |
3542 | if (a == b) | |
894882e3 | 3543 | return true; |
7062b0a0 | 3544 | |
9ce98649 TT |
3545 | /* Two function types are equal if their argument and return types |
3546 | are equal. */ | |
3547 | if (TYPE_CODE (a) == TYPE_CODE_FUNC) | |
3548 | { | |
3549 | int i; | |
3550 | ||
3551 | if (TYPE_NFIELDS (a) != TYPE_NFIELDS (b)) | |
894882e3 | 3552 | return false; |
9ce98649 TT |
3553 | |
3554 | if (!types_equal (TYPE_TARGET_TYPE (a), TYPE_TARGET_TYPE (b))) | |
894882e3 | 3555 | return false; |
9ce98649 TT |
3556 | |
3557 | for (i = 0; i < TYPE_NFIELDS (a); ++i) | |
3558 | if (!types_equal (TYPE_FIELD_TYPE (a, i), TYPE_FIELD_TYPE (b, i))) | |
894882e3 | 3559 | return false; |
9ce98649 | 3560 | |
894882e3 | 3561 | return true; |
9ce98649 TT |
3562 | } |
3563 | ||
894882e3 | 3564 | return false; |
7062b0a0 | 3565 | } |
ca092b61 DE |
3566 | \f |
3567 | /* Deep comparison of types. */ | |
3568 | ||
3569 | /* An entry in the type-equality bcache. */ | |
3570 | ||
894882e3 | 3571 | struct type_equality_entry |
ca092b61 | 3572 | { |
894882e3 TT |
3573 | type_equality_entry (struct type *t1, struct type *t2) |
3574 | : type1 (t1), | |
3575 | type2 (t2) | |
3576 | { | |
3577 | } | |
ca092b61 | 3578 | |
894882e3 TT |
3579 | struct type *type1, *type2; |
3580 | }; | |
ca092b61 | 3581 | |
894882e3 TT |
3582 | /* A helper function to compare two strings. Returns true if they are |
3583 | the same, false otherwise. Handles NULLs properly. */ | |
ca092b61 | 3584 | |
894882e3 | 3585 | static bool |
ca092b61 DE |
3586 | compare_maybe_null_strings (const char *s, const char *t) |
3587 | { | |
894882e3 TT |
3588 | if (s == NULL || t == NULL) |
3589 | return s == t; | |
ca092b61 DE |
3590 | return strcmp (s, t) == 0; |
3591 | } | |
3592 | ||
3593 | /* A helper function for check_types_worklist that checks two types for | |
894882e3 TT |
3594 | "deep" equality. Returns true if the types are considered the |
3595 | same, false otherwise. */ | |
ca092b61 | 3596 | |
894882e3 | 3597 | static bool |
ca092b61 | 3598 | check_types_equal (struct type *type1, struct type *type2, |
894882e3 | 3599 | std::vector<type_equality_entry> *worklist) |
ca092b61 | 3600 | { |
f168693b SM |
3601 | type1 = check_typedef (type1); |
3602 | type2 = check_typedef (type2); | |
ca092b61 DE |
3603 | |
3604 | if (type1 == type2) | |
894882e3 | 3605 | return true; |
ca092b61 DE |
3606 | |
3607 | if (TYPE_CODE (type1) != TYPE_CODE (type2) | |
3608 | || TYPE_LENGTH (type1) != TYPE_LENGTH (type2) | |
3609 | || TYPE_UNSIGNED (type1) != TYPE_UNSIGNED (type2) | |
3610 | || TYPE_NOSIGN (type1) != TYPE_NOSIGN (type2) | |
3611 | || TYPE_VARARGS (type1) != TYPE_VARARGS (type2) | |
3612 | || TYPE_VECTOR (type1) != TYPE_VECTOR (type2) | |
3613 | || TYPE_NOTTEXT (type1) != TYPE_NOTTEXT (type2) | |
3614 | || TYPE_INSTANCE_FLAGS (type1) != TYPE_INSTANCE_FLAGS (type2) | |
3615 | || TYPE_NFIELDS (type1) != TYPE_NFIELDS (type2)) | |
894882e3 | 3616 | return false; |
ca092b61 | 3617 | |
e86ca25f | 3618 | if (!compare_maybe_null_strings (TYPE_NAME (type1), TYPE_NAME (type2))) |
894882e3 | 3619 | return false; |
ca092b61 | 3620 | if (!compare_maybe_null_strings (TYPE_NAME (type1), TYPE_NAME (type2))) |
894882e3 | 3621 | return false; |
ca092b61 DE |
3622 | |
3623 | if (TYPE_CODE (type1) == TYPE_CODE_RANGE) | |
3624 | { | |
0f59d5fc | 3625 | if (*TYPE_RANGE_DATA (type1) != *TYPE_RANGE_DATA (type2)) |
894882e3 | 3626 | return false; |
ca092b61 DE |
3627 | } |
3628 | else | |
3629 | { | |
3630 | int i; | |
3631 | ||
3632 | for (i = 0; i < TYPE_NFIELDS (type1); ++i) | |
3633 | { | |
3634 | const struct field *field1 = &TYPE_FIELD (type1, i); | |
3635 | const struct field *field2 = &TYPE_FIELD (type2, i); | |
ca092b61 DE |
3636 | |
3637 | if (FIELD_ARTIFICIAL (*field1) != FIELD_ARTIFICIAL (*field2) | |
3638 | || FIELD_BITSIZE (*field1) != FIELD_BITSIZE (*field2) | |
3639 | || FIELD_LOC_KIND (*field1) != FIELD_LOC_KIND (*field2)) | |
894882e3 | 3640 | return false; |
ca092b61 DE |
3641 | if (!compare_maybe_null_strings (FIELD_NAME (*field1), |
3642 | FIELD_NAME (*field2))) | |
894882e3 | 3643 | return false; |
ca092b61 DE |
3644 | switch (FIELD_LOC_KIND (*field1)) |
3645 | { | |
3646 | case FIELD_LOC_KIND_BITPOS: | |
3647 | if (FIELD_BITPOS (*field1) != FIELD_BITPOS (*field2)) | |
894882e3 | 3648 | return false; |
ca092b61 DE |
3649 | break; |
3650 | case FIELD_LOC_KIND_ENUMVAL: | |
3651 | if (FIELD_ENUMVAL (*field1) != FIELD_ENUMVAL (*field2)) | |
894882e3 | 3652 | return false; |
ca092b61 DE |
3653 | break; |
3654 | case FIELD_LOC_KIND_PHYSADDR: | |
3655 | if (FIELD_STATIC_PHYSADDR (*field1) | |
3656 | != FIELD_STATIC_PHYSADDR (*field2)) | |
894882e3 | 3657 | return false; |
ca092b61 DE |
3658 | break; |
3659 | case FIELD_LOC_KIND_PHYSNAME: | |
3660 | if (!compare_maybe_null_strings (FIELD_STATIC_PHYSNAME (*field1), | |
3661 | FIELD_STATIC_PHYSNAME (*field2))) | |
894882e3 | 3662 | return false; |
ca092b61 DE |
3663 | break; |
3664 | case FIELD_LOC_KIND_DWARF_BLOCK: | |
3665 | { | |
3666 | struct dwarf2_locexpr_baton *block1, *block2; | |
3667 | ||
3668 | block1 = FIELD_DWARF_BLOCK (*field1); | |
3669 | block2 = FIELD_DWARF_BLOCK (*field2); | |
3670 | if (block1->per_cu != block2->per_cu | |
3671 | || block1->size != block2->size | |
3672 | || memcmp (block1->data, block2->data, block1->size) != 0) | |
894882e3 | 3673 | return false; |
ca092b61 DE |
3674 | } |
3675 | break; | |
3676 | default: | |
3677 | internal_error (__FILE__, __LINE__, _("Unsupported field kind " | |
3678 | "%d by check_types_equal"), | |
3679 | FIELD_LOC_KIND (*field1)); | |
3680 | } | |
3681 | ||
894882e3 | 3682 | worklist->emplace_back (FIELD_TYPE (*field1), FIELD_TYPE (*field2)); |
ca092b61 DE |
3683 | } |
3684 | } | |
3685 | ||
3686 | if (TYPE_TARGET_TYPE (type1) != NULL) | |
3687 | { | |
ca092b61 | 3688 | if (TYPE_TARGET_TYPE (type2) == NULL) |
894882e3 | 3689 | return false; |
ca092b61 | 3690 | |
894882e3 TT |
3691 | worklist->emplace_back (TYPE_TARGET_TYPE (type1), |
3692 | TYPE_TARGET_TYPE (type2)); | |
ca092b61 DE |
3693 | } |
3694 | else if (TYPE_TARGET_TYPE (type2) != NULL) | |
894882e3 | 3695 | return false; |
ca092b61 | 3696 | |
894882e3 | 3697 | return true; |
ca092b61 DE |
3698 | } |
3699 | ||
894882e3 TT |
3700 | /* Check types on a worklist for equality. Returns false if any pair |
3701 | is not equal, true if they are all considered equal. */ | |
ca092b61 | 3702 | |
894882e3 TT |
3703 | static bool |
3704 | check_types_worklist (std::vector<type_equality_entry> *worklist, | |
ca092b61 DE |
3705 | struct bcache *cache) |
3706 | { | |
894882e3 | 3707 | while (!worklist->empty ()) |
ca092b61 | 3708 | { |
ca092b61 DE |
3709 | int added; |
3710 | ||
894882e3 TT |
3711 | struct type_equality_entry entry = std::move (worklist->back ()); |
3712 | worklist->pop_back (); | |
ca092b61 DE |
3713 | |
3714 | /* If the type pair has already been visited, we know it is | |
3715 | ok. */ | |
25629dfd | 3716 | cache->insert (&entry, sizeof (entry), &added); |
ca092b61 DE |
3717 | if (!added) |
3718 | continue; | |
3719 | ||
894882e3 TT |
3720 | if (!check_types_equal (entry.type1, entry.type2, worklist)) |
3721 | return false; | |
ca092b61 | 3722 | } |
7062b0a0 | 3723 | |
894882e3 | 3724 | return true; |
ca092b61 DE |
3725 | } |
3726 | ||
894882e3 TT |
3727 | /* Return true if types TYPE1 and TYPE2 are equal, as determined by a |
3728 | "deep comparison". Otherwise return false. */ | |
ca092b61 | 3729 | |
894882e3 | 3730 | bool |
ca092b61 DE |
3731 | types_deeply_equal (struct type *type1, struct type *type2) |
3732 | { | |
894882e3 | 3733 | std::vector<type_equality_entry> worklist; |
ca092b61 DE |
3734 | |
3735 | gdb_assert (type1 != NULL && type2 != NULL); | |
3736 | ||
3737 | /* Early exit for the simple case. */ | |
3738 | if (type1 == type2) | |
894882e3 | 3739 | return true; |
ca092b61 | 3740 | |
25629dfd | 3741 | struct bcache cache (nullptr, nullptr); |
894882e3 | 3742 | worklist.emplace_back (type1, type2); |
25629dfd | 3743 | return check_types_worklist (&worklist, &cache); |
ca092b61 | 3744 | } |
3f2f83dd KB |
3745 | |
3746 | /* Allocated status of type TYPE. Return zero if type TYPE is allocated. | |
3747 | Otherwise return one. */ | |
3748 | ||
3749 | int | |
3750 | type_not_allocated (const struct type *type) | |
3751 | { | |
3752 | struct dynamic_prop *prop = TYPE_ALLOCATED_PROP (type); | |
3753 | ||
3754 | return (prop && TYPE_DYN_PROP_KIND (prop) == PROP_CONST | |
3755 | && !TYPE_DYN_PROP_ADDR (prop)); | |
3756 | } | |
3757 | ||
3758 | /* Associated status of type TYPE. Return zero if type TYPE is associated. | |
3759 | Otherwise return one. */ | |
3760 | ||
3761 | int | |
3762 | type_not_associated (const struct type *type) | |
3763 | { | |
3764 | struct dynamic_prop *prop = TYPE_ASSOCIATED_PROP (type); | |
3765 | ||
3766 | return (prop && TYPE_DYN_PROP_KIND (prop) == PROP_CONST | |
3767 | && !TYPE_DYN_PROP_ADDR (prop)); | |
3768 | } | |
9293fc63 SM |
3769 | |
3770 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_PTR. */ | |
3771 | ||
3772 | static struct rank | |
3773 | rank_one_type_parm_ptr (struct type *parm, struct type *arg, struct value *value) | |
3774 | { | |
3775 | struct rank rank = {0,0}; | |
3776 | ||
3777 | switch (TYPE_CODE (arg)) | |
3778 | { | |
3779 | case TYPE_CODE_PTR: | |
3780 | ||
3781 | /* Allowed pointer conversions are: | |
3782 | (a) pointer to void-pointer conversion. */ | |
3783 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) | |
3784 | return VOID_PTR_CONVERSION_BADNESS; | |
3785 | ||
3786 | /* (b) pointer to ancestor-pointer conversion. */ | |
3787 | rank.subrank = distance_to_ancestor (TYPE_TARGET_TYPE (parm), | |
3788 | TYPE_TARGET_TYPE (arg), | |
3789 | 0); | |
3790 | if (rank.subrank >= 0) | |
3791 | return sum_ranks (BASE_PTR_CONVERSION_BADNESS, rank); | |
3792 | ||
3793 | return INCOMPATIBLE_TYPE_BADNESS; | |
3794 | case TYPE_CODE_ARRAY: | |
3795 | { | |
3796 | struct type *t1 = TYPE_TARGET_TYPE (parm); | |
3797 | struct type *t2 = TYPE_TARGET_TYPE (arg); | |
3798 | ||
3799 | if (types_equal (t1, t2)) | |
3800 | { | |
3801 | /* Make sure they are CV equal. */ | |
3802 | if (TYPE_CONST (t1) != TYPE_CONST (t2)) | |
3803 | rank.subrank |= CV_CONVERSION_CONST; | |
3804 | if (TYPE_VOLATILE (t1) != TYPE_VOLATILE (t2)) | |
3805 | rank.subrank |= CV_CONVERSION_VOLATILE; | |
3806 | if (rank.subrank != 0) | |
3807 | return sum_ranks (CV_CONVERSION_BADNESS, rank); | |
3808 | return EXACT_MATCH_BADNESS; | |
3809 | } | |
3810 | return INCOMPATIBLE_TYPE_BADNESS; | |
3811 | } | |
3812 | case TYPE_CODE_FUNC: | |
3813 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL); | |
3814 | case TYPE_CODE_INT: | |
3815 | if (value != NULL && TYPE_CODE (value_type (value)) == TYPE_CODE_INT) | |
3816 | { | |
3817 | if (value_as_long (value) == 0) | |
3818 | { | |
3819 | /* Null pointer conversion: allow it to be cast to a pointer. | |
3820 | [4.10.1 of C++ standard draft n3290] */ | |
3821 | return NULL_POINTER_CONVERSION_BADNESS; | |
3822 | } | |
3823 | else | |
3824 | { | |
3825 | /* If type checking is disabled, allow the conversion. */ | |
3826 | if (!strict_type_checking) | |
3827 | return NS_INTEGER_POINTER_CONVERSION_BADNESS; | |
3828 | } | |
3829 | } | |
3830 | /* fall through */ | |
3831 | case TYPE_CODE_ENUM: | |
3832 | case TYPE_CODE_FLAGS: | |
3833 | case TYPE_CODE_CHAR: | |
3834 | case TYPE_CODE_RANGE: | |
3835 | case TYPE_CODE_BOOL: | |
3836 | default: | |
3837 | return INCOMPATIBLE_TYPE_BADNESS; | |
3838 | } | |
3839 | } | |
3840 | ||
b9f4512f SM |
3841 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_ARRAY. */ |
3842 | ||
3843 | static struct rank | |
3844 | rank_one_type_parm_array (struct type *parm, struct type *arg, struct value *value) | |
3845 | { | |
3846 | switch (TYPE_CODE (arg)) | |
3847 | { | |
3848 | case TYPE_CODE_PTR: | |
3849 | case TYPE_CODE_ARRAY: | |
3850 | return rank_one_type (TYPE_TARGET_TYPE (parm), | |
3851 | TYPE_TARGET_TYPE (arg), NULL); | |
3852 | default: | |
3853 | return INCOMPATIBLE_TYPE_BADNESS; | |
3854 | } | |
3855 | } | |
3856 | ||
f1f832d6 SM |
3857 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_FUNC. */ |
3858 | ||
3859 | static struct rank | |
3860 | rank_one_type_parm_func (struct type *parm, struct type *arg, struct value *value) | |
3861 | { | |
3862 | switch (TYPE_CODE (arg)) | |
3863 | { | |
3864 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
3865 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL); | |
3866 | default: | |
3867 | return INCOMPATIBLE_TYPE_BADNESS; | |
3868 | } | |
3869 | } | |
3870 | ||
34910087 SM |
3871 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_INT. */ |
3872 | ||
3873 | static struct rank | |
3874 | rank_one_type_parm_int (struct type *parm, struct type *arg, struct value *value) | |
3875 | { | |
3876 | switch (TYPE_CODE (arg)) | |
3877 | { | |
3878 | case TYPE_CODE_INT: | |
3879 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
3880 | { | |
3881 | /* Deal with signed, unsigned, and plain chars and | |
3882 | signed and unsigned ints. */ | |
3883 | if (TYPE_NOSIGN (parm)) | |
3884 | { | |
3885 | /* This case only for character types. */ | |
3886 | if (TYPE_NOSIGN (arg)) | |
3887 | return EXACT_MATCH_BADNESS; /* plain char -> plain char */ | |
3888 | else /* signed/unsigned char -> plain char */ | |
3889 | return INTEGER_CONVERSION_BADNESS; | |
3890 | } | |
3891 | else if (TYPE_UNSIGNED (parm)) | |
3892 | { | |
3893 | if (TYPE_UNSIGNED (arg)) | |
3894 | { | |
3895 | /* unsigned int -> unsigned int, or | |
3896 | unsigned long -> unsigned long */ | |
3897 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
3898 | TYPE_NAME (arg))) | |
3899 | return EXACT_MATCH_BADNESS; | |
3900 | else if (integer_types_same_name_p (TYPE_NAME (arg), | |
3901 | "int") | |
3902 | && integer_types_same_name_p (TYPE_NAME (parm), | |
3903 | "long")) | |
3904 | /* unsigned int -> unsigned long */ | |
3905 | return INTEGER_PROMOTION_BADNESS; | |
3906 | else | |
3907 | /* unsigned long -> unsigned int */ | |
3908 | return INTEGER_CONVERSION_BADNESS; | |
3909 | } | |
3910 | else | |
3911 | { | |
3912 | if (integer_types_same_name_p (TYPE_NAME (arg), | |
3913 | "long") | |
3914 | && integer_types_same_name_p (TYPE_NAME (parm), | |
3915 | "int")) | |
3916 | /* signed long -> unsigned int */ | |
3917 | return INTEGER_CONVERSION_BADNESS; | |
3918 | else | |
3919 | /* signed int/long -> unsigned int/long */ | |
3920 | return INTEGER_CONVERSION_BADNESS; | |
3921 | } | |
3922 | } | |
3923 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
3924 | { | |
3925 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
3926 | TYPE_NAME (arg))) | |
3927 | return EXACT_MATCH_BADNESS; | |
3928 | else if (integer_types_same_name_p (TYPE_NAME (arg), | |
3929 | "int") | |
3930 | && integer_types_same_name_p (TYPE_NAME (parm), | |
3931 | "long")) | |
3932 | return INTEGER_PROMOTION_BADNESS; | |
3933 | else | |
3934 | return INTEGER_CONVERSION_BADNESS; | |
3935 | } | |
3936 | else | |
3937 | return INTEGER_CONVERSION_BADNESS; | |
3938 | } | |
3939 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
3940 | return INTEGER_PROMOTION_BADNESS; | |
3941 | else | |
3942 | return INTEGER_CONVERSION_BADNESS; | |
3943 | case TYPE_CODE_ENUM: | |
3944 | case TYPE_CODE_FLAGS: | |
3945 | case TYPE_CODE_CHAR: | |
3946 | case TYPE_CODE_RANGE: | |
3947 | case TYPE_CODE_BOOL: | |
3948 | if (TYPE_DECLARED_CLASS (arg)) | |
3949 | return INCOMPATIBLE_TYPE_BADNESS; | |
3950 | return INTEGER_PROMOTION_BADNESS; | |
3951 | case TYPE_CODE_FLT: | |
3952 | return INT_FLOAT_CONVERSION_BADNESS; | |
3953 | case TYPE_CODE_PTR: | |
3954 | return NS_POINTER_CONVERSION_BADNESS; | |
3955 | default: | |
3956 | return INCOMPATIBLE_TYPE_BADNESS; | |
3957 | } | |
3958 | } | |
3959 | ||
793cd1d2 SM |
3960 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_ENUM. */ |
3961 | ||
3962 | static struct rank | |
3963 | rank_one_type_parm_enum (struct type *parm, struct type *arg, struct value *value) | |
3964 | { | |
3965 | switch (TYPE_CODE (arg)) | |
3966 | { | |
3967 | case TYPE_CODE_INT: | |
3968 | case TYPE_CODE_CHAR: | |
3969 | case TYPE_CODE_RANGE: | |
3970 | case TYPE_CODE_BOOL: | |
3971 | case TYPE_CODE_ENUM: | |
3972 | if (TYPE_DECLARED_CLASS (parm) || TYPE_DECLARED_CLASS (arg)) | |
3973 | return INCOMPATIBLE_TYPE_BADNESS; | |
3974 | return INTEGER_CONVERSION_BADNESS; | |
3975 | case TYPE_CODE_FLT: | |
3976 | return INT_FLOAT_CONVERSION_BADNESS; | |
3977 | default: | |
3978 | return INCOMPATIBLE_TYPE_BADNESS; | |
3979 | } | |
3980 | } | |
3981 | ||
41ea4728 SM |
3982 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_CHAR. */ |
3983 | ||
3984 | static struct rank | |
3985 | rank_one_type_parm_char (struct type *parm, struct type *arg, struct value *value) | |
3986 | { | |
3987 | switch (TYPE_CODE (arg)) | |
3988 | { | |
3989 | case TYPE_CODE_RANGE: | |
3990 | case TYPE_CODE_BOOL: | |
3991 | case TYPE_CODE_ENUM: | |
3992 | if (TYPE_DECLARED_CLASS (arg)) | |
3993 | return INCOMPATIBLE_TYPE_BADNESS; | |
3994 | return INTEGER_CONVERSION_BADNESS; | |
3995 | case TYPE_CODE_FLT: | |
3996 | return INT_FLOAT_CONVERSION_BADNESS; | |
3997 | case TYPE_CODE_INT: | |
3998 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
3999 | return INTEGER_CONVERSION_BADNESS; | |
4000 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
4001 | return INTEGER_PROMOTION_BADNESS; | |
4002 | /* fall through */ | |
4003 | case TYPE_CODE_CHAR: | |
4004 | /* Deal with signed, unsigned, and plain chars for C++ and | |
4005 | with int cases falling through from previous case. */ | |
4006 | if (TYPE_NOSIGN (parm)) | |
4007 | { | |
4008 | if (TYPE_NOSIGN (arg)) | |
4009 | return EXACT_MATCH_BADNESS; | |
4010 | else | |
4011 | return INTEGER_CONVERSION_BADNESS; | |
4012 | } | |
4013 | else if (TYPE_UNSIGNED (parm)) | |
4014 | { | |
4015 | if (TYPE_UNSIGNED (arg)) | |
4016 | return EXACT_MATCH_BADNESS; | |
4017 | else | |
4018 | return INTEGER_PROMOTION_BADNESS; | |
4019 | } | |
4020 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
4021 | return EXACT_MATCH_BADNESS; | |
4022 | else | |
4023 | return INTEGER_CONVERSION_BADNESS; | |
4024 | default: | |
4025 | return INCOMPATIBLE_TYPE_BADNESS; | |
4026 | } | |
4027 | } | |
4028 | ||
0dd322dc SM |
4029 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_RANGE. */ |
4030 | ||
4031 | static struct rank | |
4032 | rank_one_type_parm_range (struct type *parm, struct type *arg, struct value *value) | |
4033 | { | |
4034 | switch (TYPE_CODE (arg)) | |
4035 | { | |
4036 | case TYPE_CODE_INT: | |
4037 | case TYPE_CODE_CHAR: | |
4038 | case TYPE_CODE_RANGE: | |
4039 | case TYPE_CODE_BOOL: | |
4040 | case TYPE_CODE_ENUM: | |
4041 | return INTEGER_CONVERSION_BADNESS; | |
4042 | case TYPE_CODE_FLT: | |
4043 | return INT_FLOAT_CONVERSION_BADNESS; | |
4044 | default: | |
4045 | return INCOMPATIBLE_TYPE_BADNESS; | |
4046 | } | |
4047 | } | |
4048 | ||
2c509035 SM |
4049 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_BOOL. */ |
4050 | ||
4051 | static struct rank | |
4052 | rank_one_type_parm_bool (struct type *parm, struct type *arg, struct value *value) | |
4053 | { | |
4054 | switch (TYPE_CODE (arg)) | |
4055 | { | |
4056 | /* n3290 draft, section 4.12.1 (conv.bool): | |
4057 | ||
4058 | "A prvalue of arithmetic, unscoped enumeration, pointer, or | |
4059 | pointer to member type can be converted to a prvalue of type | |
4060 | bool. A zero value, null pointer value, or null member pointer | |
4061 | value is converted to false; any other value is converted to | |
4062 | true. A prvalue of type std::nullptr_t can be converted to a | |
4063 | prvalue of type bool; the resulting value is false." */ | |
4064 | case TYPE_CODE_INT: | |
4065 | case TYPE_CODE_CHAR: | |
4066 | case TYPE_CODE_ENUM: | |
4067 | case TYPE_CODE_FLT: | |
4068 | case TYPE_CODE_MEMBERPTR: | |
4069 | case TYPE_CODE_PTR: | |
4070 | return BOOL_CONVERSION_BADNESS; | |
4071 | case TYPE_CODE_RANGE: | |
4072 | return INCOMPATIBLE_TYPE_BADNESS; | |
4073 | case TYPE_CODE_BOOL: | |
4074 | return EXACT_MATCH_BADNESS; | |
4075 | default: | |
4076 | return INCOMPATIBLE_TYPE_BADNESS; | |
4077 | } | |
4078 | } | |
4079 | ||
7f17b20d SM |
4080 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_FLOAT. */ |
4081 | ||
4082 | static struct rank | |
4083 | rank_one_type_parm_float (struct type *parm, struct type *arg, struct value *value) | |
4084 | { | |
4085 | switch (TYPE_CODE (arg)) | |
4086 | { | |
4087 | case TYPE_CODE_FLT: | |
4088 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
4089 | return FLOAT_PROMOTION_BADNESS; | |
4090 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
4091 | return EXACT_MATCH_BADNESS; | |
4092 | else | |
4093 | return FLOAT_CONVERSION_BADNESS; | |
4094 | case TYPE_CODE_INT: | |
4095 | case TYPE_CODE_BOOL: | |
4096 | case TYPE_CODE_ENUM: | |
4097 | case TYPE_CODE_RANGE: | |
4098 | case TYPE_CODE_CHAR: | |
4099 | return INT_FLOAT_CONVERSION_BADNESS; | |
4100 | default: | |
4101 | return INCOMPATIBLE_TYPE_BADNESS; | |
4102 | } | |
4103 | } | |
4104 | ||
2598a94b SM |
4105 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_COMPLEX. */ |
4106 | ||
4107 | static struct rank | |
4108 | rank_one_type_parm_complex (struct type *parm, struct type *arg, struct value *value) | |
4109 | { | |
4110 | switch (TYPE_CODE (arg)) | |
4111 | { /* Strictly not needed for C++, but... */ | |
4112 | case TYPE_CODE_FLT: | |
4113 | return FLOAT_PROMOTION_BADNESS; | |
4114 | case TYPE_CODE_COMPLEX: | |
4115 | return EXACT_MATCH_BADNESS; | |
4116 | default: | |
4117 | return INCOMPATIBLE_TYPE_BADNESS; | |
4118 | } | |
4119 | } | |
4120 | ||
595f96a9 SM |
4121 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_STRUCT. */ |
4122 | ||
4123 | static struct rank | |
4124 | rank_one_type_parm_struct (struct type *parm, struct type *arg, struct value *value) | |
4125 | { | |
4126 | struct rank rank = {0, 0}; | |
4127 | ||
4128 | switch (TYPE_CODE (arg)) | |
4129 | { | |
4130 | case TYPE_CODE_STRUCT: | |
4131 | /* Check for derivation */ | |
4132 | rank.subrank = distance_to_ancestor (parm, arg, 0); | |
4133 | if (rank.subrank >= 0) | |
4134 | return sum_ranks (BASE_CONVERSION_BADNESS, rank); | |
4135 | /* fall through */ | |
4136 | default: | |
4137 | return INCOMPATIBLE_TYPE_BADNESS; | |
4138 | } | |
4139 | } | |
4140 | ||
f09ce22d SM |
4141 | /* rank_one_type helper for when PARM's type code is TYPE_CODE_SET. */ |
4142 | ||
4143 | static struct rank | |
4144 | rank_one_type_parm_set (struct type *parm, struct type *arg, struct value *value) | |
4145 | { | |
4146 | switch (TYPE_CODE (arg)) | |
4147 | { | |
4148 | /* Not in C++ */ | |
4149 | case TYPE_CODE_SET: | |
4150 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), | |
4151 | TYPE_FIELD_TYPE (arg, 0), NULL); | |
4152 | default: | |
4153 | return INCOMPATIBLE_TYPE_BADNESS; | |
4154 | } | |
4155 | } | |
4156 | ||
c906108c SS |
4157 | /* Compare one type (PARM) for compatibility with another (ARG). |
4158 | * PARM is intended to be the parameter type of a function; and | |
4159 | * ARG is the supplied argument's type. This function tests if | |
4160 | * the latter can be converted to the former. | |
da096638 | 4161 | * VALUE is the argument's value or NULL if none (or called recursively) |
c906108c SS |
4162 | * |
4163 | * Return 0 if they are identical types; | |
4164 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 MS |
4165 | * PARM is to ARG. The higher the return value, the worse the match. |
4166 | * Generally the "bad" conversions are all uniformly assigned a 100. */ | |
c906108c | 4167 | |
6403aeea | 4168 | struct rank |
da096638 | 4169 | rank_one_type (struct type *parm, struct type *arg, struct value *value) |
c906108c | 4170 | { |
a9d5ef47 | 4171 | struct rank rank = {0,0}; |
7062b0a0 | 4172 | |
c906108c SS |
4173 | /* Resolve typedefs */ |
4174 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
4175 | parm = check_typedef (parm); | |
4176 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
4177 | arg = check_typedef (arg); | |
4178 | ||
e15c3eb4 | 4179 | if (TYPE_IS_REFERENCE (parm) && value != NULL) |
15c0a2a9 | 4180 | { |
e15c3eb4 KS |
4181 | if (VALUE_LVAL (value) == not_lval) |
4182 | { | |
4183 | /* Rvalues should preferably bind to rvalue references or const | |
4184 | lvalue references. */ | |
4185 | if (TYPE_CODE (parm) == TYPE_CODE_RVALUE_REF) | |
4186 | rank.subrank = REFERENCE_CONVERSION_RVALUE; | |
4187 | else if (TYPE_CONST (TYPE_TARGET_TYPE (parm))) | |
4188 | rank.subrank = REFERENCE_CONVERSION_CONST_LVALUE; | |
4189 | else | |
4190 | return INCOMPATIBLE_TYPE_BADNESS; | |
4191 | return sum_ranks (rank, REFERENCE_CONVERSION_BADNESS); | |
4192 | } | |
4193 | else | |
4194 | { | |
4195 | /* Lvalues should prefer lvalue overloads. */ | |
4196 | if (TYPE_CODE (parm) == TYPE_CODE_RVALUE_REF) | |
4197 | { | |
4198 | rank.subrank = REFERENCE_CONVERSION_RVALUE; | |
4199 | return sum_ranks (rank, REFERENCE_CONVERSION_BADNESS); | |
4200 | } | |
4201 | } | |
15c0a2a9 AV |
4202 | } |
4203 | ||
4204 | if (types_equal (parm, arg)) | |
15c0a2a9 | 4205 | { |
e15c3eb4 KS |
4206 | struct type *t1 = parm; |
4207 | struct type *t2 = arg; | |
15c0a2a9 | 4208 | |
e15c3eb4 KS |
4209 | /* For pointers and references, compare target type. */ |
4210 | if (TYPE_CODE (parm) == TYPE_CODE_PTR || TYPE_IS_REFERENCE (parm)) | |
4211 | { | |
4212 | t1 = TYPE_TARGET_TYPE (parm); | |
4213 | t2 = TYPE_TARGET_TYPE (arg); | |
4214 | } | |
15c0a2a9 | 4215 | |
e15c3eb4 KS |
4216 | /* Make sure they are CV equal, too. */ |
4217 | if (TYPE_CONST (t1) != TYPE_CONST (t2)) | |
4218 | rank.subrank |= CV_CONVERSION_CONST; | |
4219 | if (TYPE_VOLATILE (t1) != TYPE_VOLATILE (t2)) | |
4220 | rank.subrank |= CV_CONVERSION_VOLATILE; | |
4221 | if (rank.subrank != 0) | |
4222 | return sum_ranks (CV_CONVERSION_BADNESS, rank); | |
4223 | return EXACT_MATCH_BADNESS; | |
15c0a2a9 AV |
4224 | } |
4225 | ||
db577aea | 4226 | /* See through references, since we can almost make non-references |
7ba81444 | 4227 | references. */ |
aa006118 AV |
4228 | |
4229 | if (TYPE_IS_REFERENCE (arg)) | |
da096638 | 4230 | return (sum_ranks (rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL), |
6403aeea | 4231 | REFERENCE_CONVERSION_BADNESS)); |
aa006118 | 4232 | if (TYPE_IS_REFERENCE (parm)) |
da096638 | 4233 | return (sum_ranks (rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL), |
6403aeea | 4234 | REFERENCE_CONVERSION_BADNESS)); |
5d161b24 | 4235 | if (overload_debug) |
7ba81444 MS |
4236 | /* Debugging only. */ |
4237 | fprintf_filtered (gdb_stderr, | |
4238 | "------ Arg is %s [%d], parm is %s [%d]\n", | |
4239 | TYPE_NAME (arg), TYPE_CODE (arg), | |
4240 | TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c | 4241 | |
0963b4bd | 4242 | /* x -> y means arg of type x being supplied for parameter of type y. */ |
c906108c SS |
4243 | |
4244 | switch (TYPE_CODE (parm)) | |
4245 | { | |
c5aa993b | 4246 | case TYPE_CODE_PTR: |
9293fc63 | 4247 | return rank_one_type_parm_ptr (parm, arg, value); |
c5aa993b | 4248 | case TYPE_CODE_ARRAY: |
b9f4512f | 4249 | return rank_one_type_parm_array (parm, arg, value); |
c5aa993b | 4250 | case TYPE_CODE_FUNC: |
f1f832d6 | 4251 | return rank_one_type_parm_func (parm, arg, value); |
c5aa993b | 4252 | case TYPE_CODE_INT: |
34910087 | 4253 | return rank_one_type_parm_int (parm, arg, value); |
c5aa993b | 4254 | case TYPE_CODE_ENUM: |
793cd1d2 | 4255 | return rank_one_type_parm_enum (parm, arg, value); |
c5aa993b | 4256 | case TYPE_CODE_CHAR: |
41ea4728 | 4257 | return rank_one_type_parm_char (parm, arg, value); |
c5aa993b | 4258 | case TYPE_CODE_RANGE: |
0dd322dc | 4259 | return rank_one_type_parm_range (parm, arg, value); |
c5aa993b | 4260 | case TYPE_CODE_BOOL: |
2c509035 | 4261 | return rank_one_type_parm_bool (parm, arg, value); |
c5aa993b | 4262 | case TYPE_CODE_FLT: |
7f17b20d | 4263 | return rank_one_type_parm_float (parm, arg, value); |
c5aa993b | 4264 | case TYPE_CODE_COMPLEX: |
2598a94b | 4265 | return rank_one_type_parm_complex (parm, arg, value); |
c5aa993b | 4266 | case TYPE_CODE_STRUCT: |
595f96a9 | 4267 | return rank_one_type_parm_struct (parm, arg, value); |
c5aa993b | 4268 | case TYPE_CODE_SET: |
f09ce22d | 4269 | return rank_one_type_parm_set (parm, arg, value); |
c5aa993b JM |
4270 | default: |
4271 | return INCOMPATIBLE_TYPE_BADNESS; | |
4272 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
4273 | } |
4274 | ||
0963b4bd | 4275 | /* End of functions for overload resolution. */ |
5212577a DE |
4276 | \f |
4277 | /* Routines to pretty-print types. */ | |
c906108c | 4278 | |
c906108c | 4279 | static void |
fba45db2 | 4280 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
4281 | { |
4282 | int bitno; | |
4283 | ||
4284 | for (bitno = 0; bitno < nbits; bitno++) | |
4285 | { | |
4286 | if ((bitno % 8) == 0) | |
4287 | { | |
4288 | puts_filtered (" "); | |
4289 | } | |
4290 | if (B_TST (bits, bitno)) | |
a3f17187 | 4291 | printf_filtered (("1")); |
c906108c | 4292 | else |
a3f17187 | 4293 | printf_filtered (("0")); |
c906108c SS |
4294 | } |
4295 | } | |
4296 | ||
ad2f7632 | 4297 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
4298 | include it since we may get into a infinitely recursive |
4299 | situation. */ | |
c906108c SS |
4300 | |
4301 | static void | |
4c9e8482 | 4302 | print_args (struct field *args, int nargs, int spaces) |
c906108c SS |
4303 | { |
4304 | if (args != NULL) | |
4305 | { | |
ad2f7632 DJ |
4306 | int i; |
4307 | ||
4308 | for (i = 0; i < nargs; i++) | |
4c9e8482 DE |
4309 | { |
4310 | printfi_filtered (spaces, "[%d] name '%s'\n", i, | |
4311 | args[i].name != NULL ? args[i].name : "<NULL>"); | |
4312 | recursive_dump_type (args[i].type, spaces + 2); | |
4313 | } | |
c906108c SS |
4314 | } |
4315 | } | |
4316 | ||
d6a843b5 JK |
4317 | int |
4318 | field_is_static (struct field *f) | |
4319 | { | |
4320 | /* "static" fields are the fields whose location is not relative | |
4321 | to the address of the enclosing struct. It would be nice to | |
4322 | have a dedicated flag that would be set for static fields when | |
4323 | the type is being created. But in practice, checking the field | |
254e6b9e | 4324 | loc_kind should give us an accurate answer. */ |
d6a843b5 JK |
4325 | return (FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSNAME |
4326 | || FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSADDR); | |
4327 | } | |
4328 | ||
c906108c | 4329 | static void |
fba45db2 | 4330 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
4331 | { |
4332 | int method_idx; | |
4333 | int overload_idx; | |
4334 | struct fn_field *f; | |
4335 | ||
4336 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 4337 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
4338 | printf_filtered ("\n"); |
4339 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
4340 | { | |
4341 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
4342 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
4343 | method_idx, | |
4344 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
4345 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
4346 | gdb_stdout); | |
a3f17187 | 4347 | printf_filtered (_(") length %d\n"), |
c906108c SS |
4348 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
4349 | for (overload_idx = 0; | |
4350 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
4351 | overload_idx++) | |
4352 | { | |
4353 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
4354 | overload_idx, | |
4355 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
4356 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
4357 | gdb_stdout); | |
c906108c SS |
4358 | printf_filtered (")\n"); |
4359 | printfi_filtered (spaces + 8, "type "); | |
7ba81444 MS |
4360 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
4361 | gdb_stdout); | |
c906108c SS |
4362 | printf_filtered ("\n"); |
4363 | ||
4364 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
4365 | spaces + 8 + 2); | |
4366 | ||
4367 | printfi_filtered (spaces + 8, "args "); | |
7ba81444 MS |
4368 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
4369 | gdb_stdout); | |
c906108c | 4370 | printf_filtered ("\n"); |
4c9e8482 DE |
4371 | print_args (TYPE_FN_FIELD_ARGS (f, overload_idx), |
4372 | TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, overload_idx)), | |
4373 | spaces + 8 + 2); | |
c906108c | 4374 | printfi_filtered (spaces + 8, "fcontext "); |
d4f3574e SS |
4375 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
4376 | gdb_stdout); | |
c906108c SS |
4377 | printf_filtered ("\n"); |
4378 | ||
4379 | printfi_filtered (spaces + 8, "is_const %d\n", | |
4380 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
4381 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
4382 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
4383 | printfi_filtered (spaces + 8, "is_private %d\n", | |
4384 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
4385 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
4386 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
4387 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
4388 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
4389 | printfi_filtered (spaces + 8, "voffset %u\n", | |
4390 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
4391 | } | |
4392 | } | |
4393 | } | |
4394 | ||
4395 | static void | |
fba45db2 | 4396 | print_cplus_stuff (struct type *type, int spaces) |
c906108c | 4397 | { |
ae6ae975 DE |
4398 | printfi_filtered (spaces, "vptr_fieldno %d\n", TYPE_VPTR_FIELDNO (type)); |
4399 | printfi_filtered (spaces, "vptr_basetype "); | |
4400 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); | |
4401 | puts_filtered ("\n"); | |
4402 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
4403 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
4404 | ||
c906108c SS |
4405 | printfi_filtered (spaces, "n_baseclasses %d\n", |
4406 | TYPE_N_BASECLASSES (type)); | |
4407 | printfi_filtered (spaces, "nfn_fields %d\n", | |
4408 | TYPE_NFN_FIELDS (type)); | |
c906108c SS |
4409 | if (TYPE_N_BASECLASSES (type) > 0) |
4410 | { | |
4411 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
4412 | TYPE_N_BASECLASSES (type)); | |
7ba81444 MS |
4413 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
4414 | gdb_stdout); | |
c906108c SS |
4415 | printf_filtered (")"); |
4416 | ||
4417 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
4418 | TYPE_N_BASECLASSES (type)); | |
4419 | puts_filtered ("\n"); | |
4420 | } | |
4421 | if (TYPE_NFIELDS (type) > 0) | |
4422 | { | |
4423 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
4424 | { | |
7ba81444 MS |
4425 | printfi_filtered (spaces, |
4426 | "private_field_bits (%d bits at *", | |
c906108c | 4427 | TYPE_NFIELDS (type)); |
7ba81444 MS |
4428 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
4429 | gdb_stdout); | |
c906108c SS |
4430 | printf_filtered (")"); |
4431 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
4432 | TYPE_NFIELDS (type)); | |
4433 | puts_filtered ("\n"); | |
4434 | } | |
4435 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
4436 | { | |
7ba81444 MS |
4437 | printfi_filtered (spaces, |
4438 | "protected_field_bits (%d bits at *", | |
c906108c | 4439 | TYPE_NFIELDS (type)); |
7ba81444 MS |
4440 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
4441 | gdb_stdout); | |
c906108c SS |
4442 | printf_filtered (")"); |
4443 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
4444 | TYPE_NFIELDS (type)); | |
4445 | puts_filtered ("\n"); | |
4446 | } | |
4447 | } | |
4448 | if (TYPE_NFN_FIELDS (type) > 0) | |
4449 | { | |
4450 | dump_fn_fieldlists (type, spaces); | |
4451 | } | |
4452 | } | |
4453 | ||
b4ba55a1 JB |
4454 | /* Print the contents of the TYPE's type_specific union, assuming that |
4455 | its type-specific kind is TYPE_SPECIFIC_GNAT_STUFF. */ | |
4456 | ||
4457 | static void | |
4458 | print_gnat_stuff (struct type *type, int spaces) | |
4459 | { | |
4460 | struct type *descriptive_type = TYPE_DESCRIPTIVE_TYPE (type); | |
4461 | ||
8cd00c59 PMR |
4462 | if (descriptive_type == NULL) |
4463 | printfi_filtered (spaces + 2, "no descriptive type\n"); | |
4464 | else | |
4465 | { | |
4466 | printfi_filtered (spaces + 2, "descriptive type\n"); | |
4467 | recursive_dump_type (descriptive_type, spaces + 4); | |
4468 | } | |
b4ba55a1 JB |
4469 | } |
4470 | ||
c906108c SS |
4471 | static struct obstack dont_print_type_obstack; |
4472 | ||
4473 | void | |
fba45db2 | 4474 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
4475 | { |
4476 | int idx; | |
4477 | ||
4478 | if (spaces == 0) | |
4479 | obstack_begin (&dont_print_type_obstack, 0); | |
4480 | ||
4481 | if (TYPE_NFIELDS (type) > 0 | |
b4ba55a1 | 4482 | || (HAVE_CPLUS_STRUCT (type) && TYPE_NFN_FIELDS (type) > 0)) |
c906108c SS |
4483 | { |
4484 | struct type **first_dont_print | |
7ba81444 | 4485 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 4486 | |
7ba81444 MS |
4487 | int i = (struct type **) |
4488 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
4489 | |
4490 | while (--i >= 0) | |
4491 | { | |
4492 | if (type == first_dont_print[i]) | |
4493 | { | |
4494 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 4495 | gdb_print_host_address (type, gdb_stdout); |
a3f17187 | 4496 | printf_filtered (_(" <same as already seen type>\n")); |
c906108c SS |
4497 | return; |
4498 | } | |
4499 | } | |
4500 | ||
4501 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
4502 | } | |
4503 | ||
4504 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 4505 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
4506 | printf_filtered ("\n"); |
4507 | printfi_filtered (spaces, "name '%s' (", | |
4508 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 4509 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c | 4510 | printf_filtered (")\n"); |
c906108c SS |
4511 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
4512 | switch (TYPE_CODE (type)) | |
4513 | { | |
c5aa993b JM |
4514 | case TYPE_CODE_UNDEF: |
4515 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
4516 | break; | |
4517 | case TYPE_CODE_PTR: | |
4518 | printf_filtered ("(TYPE_CODE_PTR)"); | |
4519 | break; | |
4520 | case TYPE_CODE_ARRAY: | |
4521 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
4522 | break; | |
4523 | case TYPE_CODE_STRUCT: | |
4524 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
4525 | break; | |
4526 | case TYPE_CODE_UNION: | |
4527 | printf_filtered ("(TYPE_CODE_UNION)"); | |
4528 | break; | |
4529 | case TYPE_CODE_ENUM: | |
4530 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
4531 | break; | |
4f2aea11 MK |
4532 | case TYPE_CODE_FLAGS: |
4533 | printf_filtered ("(TYPE_CODE_FLAGS)"); | |
4534 | break; | |
c5aa993b JM |
4535 | case TYPE_CODE_FUNC: |
4536 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
4537 | break; | |
4538 | case TYPE_CODE_INT: | |
4539 | printf_filtered ("(TYPE_CODE_INT)"); | |
4540 | break; | |
4541 | case TYPE_CODE_FLT: | |
4542 | printf_filtered ("(TYPE_CODE_FLT)"); | |
4543 | break; | |
4544 | case TYPE_CODE_VOID: | |
4545 | printf_filtered ("(TYPE_CODE_VOID)"); | |
4546 | break; | |
4547 | case TYPE_CODE_SET: | |
4548 | printf_filtered ("(TYPE_CODE_SET)"); | |
4549 | break; | |
4550 | case TYPE_CODE_RANGE: | |
4551 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
4552 | break; | |
4553 | case TYPE_CODE_STRING: | |
4554 | printf_filtered ("(TYPE_CODE_STRING)"); | |
4555 | break; | |
4556 | case TYPE_CODE_ERROR: | |
4557 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
4558 | break; | |
0d5de010 DJ |
4559 | case TYPE_CODE_MEMBERPTR: |
4560 | printf_filtered ("(TYPE_CODE_MEMBERPTR)"); | |
4561 | break; | |
4562 | case TYPE_CODE_METHODPTR: | |
4563 | printf_filtered ("(TYPE_CODE_METHODPTR)"); | |
c5aa993b JM |
4564 | break; |
4565 | case TYPE_CODE_METHOD: | |
4566 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
4567 | break; | |
4568 | case TYPE_CODE_REF: | |
4569 | printf_filtered ("(TYPE_CODE_REF)"); | |
4570 | break; | |
4571 | case TYPE_CODE_CHAR: | |
4572 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
4573 | break; | |
4574 | case TYPE_CODE_BOOL: | |
4575 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
4576 | break; | |
e9e79dd9 FF |
4577 | case TYPE_CODE_COMPLEX: |
4578 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
4579 | break; | |
c5aa993b JM |
4580 | case TYPE_CODE_TYPEDEF: |
4581 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
4582 | break; | |
5c4e30ca DC |
4583 | case TYPE_CODE_NAMESPACE: |
4584 | printf_filtered ("(TYPE_CODE_NAMESPACE)"); | |
4585 | break; | |
c5aa993b JM |
4586 | default: |
4587 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
4588 | break; | |
c906108c SS |
4589 | } |
4590 | puts_filtered ("\n"); | |
cc1defb1 | 4591 | printfi_filtered (spaces, "length %s\n", pulongest (TYPE_LENGTH (type))); |
e9bb382b UW |
4592 | if (TYPE_OBJFILE_OWNED (type)) |
4593 | { | |
4594 | printfi_filtered (spaces, "objfile "); | |
4595 | gdb_print_host_address (TYPE_OWNER (type).objfile, gdb_stdout); | |
4596 | } | |
4597 | else | |
4598 | { | |
4599 | printfi_filtered (spaces, "gdbarch "); | |
4600 | gdb_print_host_address (TYPE_OWNER (type).gdbarch, gdb_stdout); | |
4601 | } | |
c906108c SS |
4602 | printf_filtered ("\n"); |
4603 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 4604 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
4605 | printf_filtered ("\n"); |
4606 | if (TYPE_TARGET_TYPE (type) != NULL) | |
4607 | { | |
4608 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
4609 | } | |
4610 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 4611 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
4612 | printf_filtered ("\n"); |
4613 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 4614 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 4615 | printf_filtered ("\n"); |
2fdde8f8 DJ |
4616 | printfi_filtered (spaces, "type_chain "); |
4617 | gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); | |
e9e79dd9 | 4618 | printf_filtered ("\n"); |
7ba81444 MS |
4619 | printfi_filtered (spaces, "instance_flags 0x%x", |
4620 | TYPE_INSTANCE_FLAGS (type)); | |
2fdde8f8 DJ |
4621 | if (TYPE_CONST (type)) |
4622 | { | |
a9ff5f12 | 4623 | puts_filtered (" TYPE_CONST"); |
2fdde8f8 DJ |
4624 | } |
4625 | if (TYPE_VOLATILE (type)) | |
4626 | { | |
a9ff5f12 | 4627 | puts_filtered (" TYPE_VOLATILE"); |
2fdde8f8 DJ |
4628 | } |
4629 | if (TYPE_CODE_SPACE (type)) | |
4630 | { | |
a9ff5f12 | 4631 | puts_filtered (" TYPE_CODE_SPACE"); |
2fdde8f8 DJ |
4632 | } |
4633 | if (TYPE_DATA_SPACE (type)) | |
4634 | { | |
a9ff5f12 | 4635 | puts_filtered (" TYPE_DATA_SPACE"); |
2fdde8f8 | 4636 | } |
8b2dbe47 KB |
4637 | if (TYPE_ADDRESS_CLASS_1 (type)) |
4638 | { | |
a9ff5f12 | 4639 | puts_filtered (" TYPE_ADDRESS_CLASS_1"); |
8b2dbe47 KB |
4640 | } |
4641 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
4642 | { | |
a9ff5f12 | 4643 | puts_filtered (" TYPE_ADDRESS_CLASS_2"); |
8b2dbe47 | 4644 | } |
06d66ee9 TT |
4645 | if (TYPE_RESTRICT (type)) |
4646 | { | |
a9ff5f12 | 4647 | puts_filtered (" TYPE_RESTRICT"); |
06d66ee9 | 4648 | } |
a2c2acaf MW |
4649 | if (TYPE_ATOMIC (type)) |
4650 | { | |
a9ff5f12 | 4651 | puts_filtered (" TYPE_ATOMIC"); |
a2c2acaf | 4652 | } |
2fdde8f8 | 4653 | puts_filtered ("\n"); |
876cecd0 TT |
4654 | |
4655 | printfi_filtered (spaces, "flags"); | |
762a036f | 4656 | if (TYPE_UNSIGNED (type)) |
c906108c | 4657 | { |
a9ff5f12 | 4658 | puts_filtered (" TYPE_UNSIGNED"); |
c906108c | 4659 | } |
762a036f FF |
4660 | if (TYPE_NOSIGN (type)) |
4661 | { | |
a9ff5f12 | 4662 | puts_filtered (" TYPE_NOSIGN"); |
762a036f FF |
4663 | } |
4664 | if (TYPE_STUB (type)) | |
c906108c | 4665 | { |
a9ff5f12 | 4666 | puts_filtered (" TYPE_STUB"); |
c906108c | 4667 | } |
762a036f FF |
4668 | if (TYPE_TARGET_STUB (type)) |
4669 | { | |
a9ff5f12 | 4670 | puts_filtered (" TYPE_TARGET_STUB"); |
762a036f | 4671 | } |
762a036f FF |
4672 | if (TYPE_PROTOTYPED (type)) |
4673 | { | |
a9ff5f12 | 4674 | puts_filtered (" TYPE_PROTOTYPED"); |
762a036f FF |
4675 | } |
4676 | if (TYPE_INCOMPLETE (type)) | |
4677 | { | |
a9ff5f12 | 4678 | puts_filtered (" TYPE_INCOMPLETE"); |
762a036f | 4679 | } |
762a036f FF |
4680 | if (TYPE_VARARGS (type)) |
4681 | { | |
a9ff5f12 | 4682 | puts_filtered (" TYPE_VARARGS"); |
762a036f | 4683 | } |
f5f8a009 EZ |
4684 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
4685 | an attribute for the array type, which tells whether or not we | |
4686 | have a vector, instead of a regular array. */ | |
4687 | if (TYPE_VECTOR (type)) | |
4688 | { | |
a9ff5f12 | 4689 | puts_filtered (" TYPE_VECTOR"); |
f5f8a009 | 4690 | } |
876cecd0 TT |
4691 | if (TYPE_FIXED_INSTANCE (type)) |
4692 | { | |
4693 | puts_filtered (" TYPE_FIXED_INSTANCE"); | |
4694 | } | |
4695 | if (TYPE_STUB_SUPPORTED (type)) | |
4696 | { | |
4697 | puts_filtered (" TYPE_STUB_SUPPORTED"); | |
4698 | } | |
4699 | if (TYPE_NOTTEXT (type)) | |
4700 | { | |
4701 | puts_filtered (" TYPE_NOTTEXT"); | |
4702 | } | |
c906108c SS |
4703 | puts_filtered ("\n"); |
4704 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 4705 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
4706 | puts_filtered ("\n"); |
4707 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
4708 | { | |
14e75d8e JK |
4709 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) |
4710 | printfi_filtered (spaces + 2, | |
4711 | "[%d] enumval %s type ", | |
4712 | idx, plongest (TYPE_FIELD_ENUMVAL (type, idx))); | |
4713 | else | |
4714 | printfi_filtered (spaces + 2, | |
6b850546 DT |
4715 | "[%d] bitpos %s bitsize %d type ", |
4716 | idx, plongest (TYPE_FIELD_BITPOS (type, idx)), | |
14e75d8e | 4717 | TYPE_FIELD_BITSIZE (type, idx)); |
d4f3574e | 4718 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
4719 | printf_filtered (" name '%s' (", |
4720 | TYPE_FIELD_NAME (type, idx) != NULL | |
4721 | ? TYPE_FIELD_NAME (type, idx) | |
4722 | : "<NULL>"); | |
d4f3574e | 4723 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
4724 | printf_filtered (")\n"); |
4725 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
4726 | { | |
4727 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
4728 | } | |
4729 | } | |
43bbcdc2 PH |
4730 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
4731 | { | |
4732 | printfi_filtered (spaces, "low %s%s high %s%s\n", | |
4733 | plongest (TYPE_LOW_BOUND (type)), | |
4734 | TYPE_LOW_BOUND_UNDEFINED (type) ? " (undefined)" : "", | |
4735 | plongest (TYPE_HIGH_BOUND (type)), | |
3e43a32a MS |
4736 | TYPE_HIGH_BOUND_UNDEFINED (type) |
4737 | ? " (undefined)" : ""); | |
43bbcdc2 | 4738 | } |
c906108c | 4739 | |
b4ba55a1 JB |
4740 | switch (TYPE_SPECIFIC_FIELD (type)) |
4741 | { | |
4742 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
4743 | printfi_filtered (spaces, "cplus_stuff "); | |
4744 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), | |
4745 | gdb_stdout); | |
4746 | puts_filtered ("\n"); | |
4747 | print_cplus_stuff (type, spaces); | |
4748 | break; | |
8da61cc4 | 4749 | |
b4ba55a1 JB |
4750 | case TYPE_SPECIFIC_GNAT_STUFF: |
4751 | printfi_filtered (spaces, "gnat_stuff "); | |
4752 | gdb_print_host_address (TYPE_GNAT_SPECIFIC (type), gdb_stdout); | |
4753 | puts_filtered ("\n"); | |
4754 | print_gnat_stuff (type, spaces); | |
4755 | break; | |
701c159d | 4756 | |
b4ba55a1 JB |
4757 | case TYPE_SPECIFIC_FLOATFORMAT: |
4758 | printfi_filtered (spaces, "floatformat "); | |
0db7851f UW |
4759 | if (TYPE_FLOATFORMAT (type) == NULL |
4760 | || TYPE_FLOATFORMAT (type)->name == NULL) | |
b4ba55a1 JB |
4761 | puts_filtered ("(null)"); |
4762 | else | |
0db7851f | 4763 | puts_filtered (TYPE_FLOATFORMAT (type)->name); |
b4ba55a1 JB |
4764 | puts_filtered ("\n"); |
4765 | break; | |
c906108c | 4766 | |
b6cdc2c1 | 4767 | case TYPE_SPECIFIC_FUNC: |
b4ba55a1 JB |
4768 | printfi_filtered (spaces, "calling_convention %d\n", |
4769 | TYPE_CALLING_CONVENTION (type)); | |
b6cdc2c1 | 4770 | /* tail_call_list is not printed. */ |
b4ba55a1 | 4771 | break; |
09e2d7c7 DE |
4772 | |
4773 | case TYPE_SPECIFIC_SELF_TYPE: | |
4774 | printfi_filtered (spaces, "self_type "); | |
4775 | gdb_print_host_address (TYPE_SELF_TYPE (type), gdb_stdout); | |
4776 | puts_filtered ("\n"); | |
4777 | break; | |
c906108c | 4778 | } |
b4ba55a1 | 4779 | |
c906108c SS |
4780 | if (spaces == 0) |
4781 | obstack_free (&dont_print_type_obstack, NULL); | |
4782 | } | |
5212577a | 4783 | \f |
ae5a43e0 DJ |
4784 | /* Trivial helpers for the libiberty hash table, for mapping one |
4785 | type to another. */ | |
4786 | ||
fd90ace4 | 4787 | struct type_pair : public allocate_on_obstack |
ae5a43e0 | 4788 | { |
fd90ace4 YQ |
4789 | type_pair (struct type *old_, struct type *newobj_) |
4790 | : old (old_), newobj (newobj_) | |
4791 | {} | |
4792 | ||
4793 | struct type * const old, * const newobj; | |
ae5a43e0 DJ |
4794 | }; |
4795 | ||
4796 | static hashval_t | |
4797 | type_pair_hash (const void *item) | |
4798 | { | |
9a3c8263 | 4799 | const struct type_pair *pair = (const struct type_pair *) item; |
d8734c88 | 4800 | |
ae5a43e0 DJ |
4801 | return htab_hash_pointer (pair->old); |
4802 | } | |
4803 | ||
4804 | static int | |
4805 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
4806 | { | |
9a3c8263 SM |
4807 | const struct type_pair *lhs = (const struct type_pair *) item_lhs; |
4808 | const struct type_pair *rhs = (const struct type_pair *) item_rhs; | |
d8734c88 | 4809 | |
ae5a43e0 DJ |
4810 | return lhs->old == rhs->old; |
4811 | } | |
4812 | ||
4813 | /* Allocate the hash table used by copy_type_recursive to walk | |
4814 | types without duplicates. We use OBJFILE's obstack, because | |
4815 | OBJFILE is about to be deleted. */ | |
4816 | ||
4817 | htab_t | |
4818 | create_copied_types_hash (struct objfile *objfile) | |
4819 | { | |
4820 | return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, | |
4821 | NULL, &objfile->objfile_obstack, | |
4822 | hashtab_obstack_allocate, | |
4823 | dummy_obstack_deallocate); | |
4824 | } | |
4825 | ||
d9823cbb KB |
4826 | /* Recursively copy (deep copy) a dynamic attribute list of a type. */ |
4827 | ||
4828 | static struct dynamic_prop_list * | |
4829 | copy_dynamic_prop_list (struct obstack *objfile_obstack, | |
4830 | struct dynamic_prop_list *list) | |
4831 | { | |
4832 | struct dynamic_prop_list *copy = list; | |
4833 | struct dynamic_prop_list **node_ptr = © | |
4834 | ||
4835 | while (*node_ptr != NULL) | |
4836 | { | |
4837 | struct dynamic_prop_list *node_copy; | |
4838 | ||
224c3ddb SM |
4839 | node_copy = ((struct dynamic_prop_list *) |
4840 | obstack_copy (objfile_obstack, *node_ptr, | |
4841 | sizeof (struct dynamic_prop_list))); | |
283a9958 | 4842 | node_copy->prop = (*node_ptr)->prop; |
d9823cbb KB |
4843 | *node_ptr = node_copy; |
4844 | ||
4845 | node_ptr = &node_copy->next; | |
4846 | } | |
4847 | ||
4848 | return copy; | |
4849 | } | |
4850 | ||
7ba81444 | 4851 | /* Recursively copy (deep copy) TYPE, if it is associated with |
eed8b28a PP |
4852 | OBJFILE. Return a new type owned by the gdbarch associated with the type, a |
4853 | saved type if we have already visited TYPE (using COPIED_TYPES), or TYPE if | |
4854 | it is not associated with OBJFILE. */ | |
ae5a43e0 DJ |
4855 | |
4856 | struct type * | |
7ba81444 MS |
4857 | copy_type_recursive (struct objfile *objfile, |
4858 | struct type *type, | |
ae5a43e0 DJ |
4859 | htab_t copied_types) |
4860 | { | |
ae5a43e0 DJ |
4861 | void **slot; |
4862 | struct type *new_type; | |
4863 | ||
e9bb382b | 4864 | if (! TYPE_OBJFILE_OWNED (type)) |
ae5a43e0 DJ |
4865 | return type; |
4866 | ||
7ba81444 MS |
4867 | /* This type shouldn't be pointing to any types in other objfiles; |
4868 | if it did, the type might disappear unexpectedly. */ | |
ae5a43e0 DJ |
4869 | gdb_assert (TYPE_OBJFILE (type) == objfile); |
4870 | ||
fd90ace4 YQ |
4871 | struct type_pair pair (type, nullptr); |
4872 | ||
ae5a43e0 DJ |
4873 | slot = htab_find_slot (copied_types, &pair, INSERT); |
4874 | if (*slot != NULL) | |
fe978cb0 | 4875 | return ((struct type_pair *) *slot)->newobj; |
ae5a43e0 | 4876 | |
e9bb382b | 4877 | new_type = alloc_type_arch (get_type_arch (type)); |
ae5a43e0 DJ |
4878 | |
4879 | /* We must add the new type to the hash table immediately, in case | |
4880 | we encounter this type again during a recursive call below. */ | |
fd90ace4 YQ |
4881 | struct type_pair *stored |
4882 | = new (&objfile->objfile_obstack) struct type_pair (type, new_type); | |
4883 | ||
ae5a43e0 DJ |
4884 | *slot = stored; |
4885 | ||
876cecd0 TT |
4886 | /* Copy the common fields of types. For the main type, we simply |
4887 | copy the entire thing and then update specific fields as needed. */ | |
4888 | *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type); | |
e9bb382b UW |
4889 | TYPE_OBJFILE_OWNED (new_type) = 0; |
4890 | TYPE_OWNER (new_type).gdbarch = get_type_arch (type); | |
876cecd0 | 4891 | |
ae5a43e0 DJ |
4892 | if (TYPE_NAME (type)) |
4893 | TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type)); | |
ae5a43e0 DJ |
4894 | |
4895 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); | |
4896 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
4897 | ||
4898 | /* Copy the fields. */ | |
ae5a43e0 DJ |
4899 | if (TYPE_NFIELDS (type)) |
4900 | { | |
4901 | int i, nfields; | |
4902 | ||
4903 | nfields = TYPE_NFIELDS (type); | |
2fabdf33 AB |
4904 | TYPE_FIELDS (new_type) = (struct field *) |
4905 | TYPE_ZALLOC (new_type, nfields * sizeof (struct field)); | |
ae5a43e0 DJ |
4906 | for (i = 0; i < nfields; i++) |
4907 | { | |
7ba81444 MS |
4908 | TYPE_FIELD_ARTIFICIAL (new_type, i) = |
4909 | TYPE_FIELD_ARTIFICIAL (type, i); | |
ae5a43e0 DJ |
4910 | TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
4911 | if (TYPE_FIELD_TYPE (type, i)) | |
4912 | TYPE_FIELD_TYPE (new_type, i) | |
4913 | = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i), | |
4914 | copied_types); | |
4915 | if (TYPE_FIELD_NAME (type, i)) | |
7ba81444 MS |
4916 | TYPE_FIELD_NAME (new_type, i) = |
4917 | xstrdup (TYPE_FIELD_NAME (type, i)); | |
d6a843b5 | 4918 | switch (TYPE_FIELD_LOC_KIND (type, i)) |
ae5a43e0 | 4919 | { |
d6a843b5 JK |
4920 | case FIELD_LOC_KIND_BITPOS: |
4921 | SET_FIELD_BITPOS (TYPE_FIELD (new_type, i), | |
4922 | TYPE_FIELD_BITPOS (type, i)); | |
4923 | break; | |
14e75d8e JK |
4924 | case FIELD_LOC_KIND_ENUMVAL: |
4925 | SET_FIELD_ENUMVAL (TYPE_FIELD (new_type, i), | |
4926 | TYPE_FIELD_ENUMVAL (type, i)); | |
4927 | break; | |
d6a843b5 JK |
4928 | case FIELD_LOC_KIND_PHYSADDR: |
4929 | SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i), | |
4930 | TYPE_FIELD_STATIC_PHYSADDR (type, i)); | |
4931 | break; | |
4932 | case FIELD_LOC_KIND_PHYSNAME: | |
4933 | SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i), | |
4934 | xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, | |
4935 | i))); | |
4936 | break; | |
4937 | default: | |
4938 | internal_error (__FILE__, __LINE__, | |
4939 | _("Unexpected type field location kind: %d"), | |
4940 | TYPE_FIELD_LOC_KIND (type, i)); | |
ae5a43e0 DJ |
4941 | } |
4942 | } | |
4943 | } | |
4944 | ||
0963b4bd | 4945 | /* For range types, copy the bounds information. */ |
43bbcdc2 PH |
4946 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
4947 | { | |
2fabdf33 AB |
4948 | TYPE_RANGE_DATA (new_type) = (struct range_bounds *) |
4949 | TYPE_ALLOC (new_type, sizeof (struct range_bounds)); | |
43bbcdc2 PH |
4950 | *TYPE_RANGE_DATA (new_type) = *TYPE_RANGE_DATA (type); |
4951 | } | |
4952 | ||
d9823cbb KB |
4953 | if (TYPE_DYN_PROP_LIST (type) != NULL) |
4954 | TYPE_DYN_PROP_LIST (new_type) | |
4955 | = copy_dynamic_prop_list (&objfile->objfile_obstack, | |
4956 | TYPE_DYN_PROP_LIST (type)); | |
4957 | ||
3cdcd0ce | 4958 | |
ae5a43e0 DJ |
4959 | /* Copy pointers to other types. */ |
4960 | if (TYPE_TARGET_TYPE (type)) | |
7ba81444 MS |
4961 | TYPE_TARGET_TYPE (new_type) = |
4962 | copy_type_recursive (objfile, | |
4963 | TYPE_TARGET_TYPE (type), | |
4964 | copied_types); | |
f6b3afbf | 4965 | |
ae5a43e0 DJ |
4966 | /* Maybe copy the type_specific bits. |
4967 | ||
4968 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
4969 | base classes and methods. There's no fundamental reason why we | |
4970 | can't, but at the moment it is not needed. */ | |
4971 | ||
f6b3afbf DE |
4972 | switch (TYPE_SPECIFIC_FIELD (type)) |
4973 | { | |
4974 | case TYPE_SPECIFIC_NONE: | |
4975 | break; | |
4976 | case TYPE_SPECIFIC_FUNC: | |
4977 | INIT_FUNC_SPECIFIC (new_type); | |
4978 | TYPE_CALLING_CONVENTION (new_type) = TYPE_CALLING_CONVENTION (type); | |
4979 | TYPE_NO_RETURN (new_type) = TYPE_NO_RETURN (type); | |
4980 | TYPE_TAIL_CALL_LIST (new_type) = NULL; | |
4981 | break; | |
4982 | case TYPE_SPECIFIC_FLOATFORMAT: | |
4983 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); | |
4984 | break; | |
4985 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
4986 | INIT_CPLUS_SPECIFIC (new_type); | |
4987 | break; | |
4988 | case TYPE_SPECIFIC_GNAT_STUFF: | |
4989 | INIT_GNAT_SPECIFIC (new_type); | |
4990 | break; | |
09e2d7c7 DE |
4991 | case TYPE_SPECIFIC_SELF_TYPE: |
4992 | set_type_self_type (new_type, | |
4993 | copy_type_recursive (objfile, TYPE_SELF_TYPE (type), | |
4994 | copied_types)); | |
4995 | break; | |
f6b3afbf DE |
4996 | default: |
4997 | gdb_assert_not_reached ("bad type_specific_kind"); | |
4998 | } | |
ae5a43e0 DJ |
4999 | |
5000 | return new_type; | |
5001 | } | |
5002 | ||
4af88198 JB |
5003 | /* Make a copy of the given TYPE, except that the pointer & reference |
5004 | types are not preserved. | |
5005 | ||
5006 | This function assumes that the given type has an associated objfile. | |
5007 | This objfile is used to allocate the new type. */ | |
5008 | ||
5009 | struct type * | |
5010 | copy_type (const struct type *type) | |
5011 | { | |
5012 | struct type *new_type; | |
5013 | ||
e9bb382b | 5014 | gdb_assert (TYPE_OBJFILE_OWNED (type)); |
4af88198 | 5015 | |
e9bb382b | 5016 | new_type = alloc_type_copy (type); |
4af88198 JB |
5017 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); |
5018 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
5019 | memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type), | |
5020 | sizeof (struct main_type)); | |
d9823cbb KB |
5021 | if (TYPE_DYN_PROP_LIST (type) != NULL) |
5022 | TYPE_DYN_PROP_LIST (new_type) | |
5023 | = copy_dynamic_prop_list (&TYPE_OBJFILE (type) -> objfile_obstack, | |
5024 | TYPE_DYN_PROP_LIST (type)); | |
4af88198 JB |
5025 | |
5026 | return new_type; | |
5027 | } | |
5212577a | 5028 | \f |
e9bb382b UW |
5029 | /* Helper functions to initialize architecture-specific types. */ |
5030 | ||
5031 | /* Allocate a type structure associated with GDBARCH and set its | |
5032 | CODE, LENGTH, and NAME fields. */ | |
5212577a | 5033 | |
e9bb382b UW |
5034 | struct type * |
5035 | arch_type (struct gdbarch *gdbarch, | |
77b7c781 | 5036 | enum type_code code, int bit, const char *name) |
e9bb382b UW |
5037 | { |
5038 | struct type *type; | |
5039 | ||
5040 | type = alloc_type_arch (gdbarch); | |
ae438bc5 | 5041 | set_type_code (type, code); |
77b7c781 UW |
5042 | gdb_assert ((bit % TARGET_CHAR_BIT) == 0); |
5043 | TYPE_LENGTH (type) = bit / TARGET_CHAR_BIT; | |
e9bb382b UW |
5044 | |
5045 | if (name) | |
6c214e7c | 5046 | TYPE_NAME (type) = gdbarch_obstack_strdup (gdbarch, name); |
e9bb382b UW |
5047 | |
5048 | return type; | |
5049 | } | |
5050 | ||
5051 | /* Allocate a TYPE_CODE_INT type structure associated with GDBARCH. | |
5052 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
5053 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 5054 | |
e9bb382b UW |
5055 | struct type * |
5056 | arch_integer_type (struct gdbarch *gdbarch, | |
695bfa52 | 5057 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
5058 | { |
5059 | struct type *t; | |
5060 | ||
77b7c781 | 5061 | t = arch_type (gdbarch, TYPE_CODE_INT, bit, name); |
e9bb382b UW |
5062 | if (unsigned_p) |
5063 | TYPE_UNSIGNED (t) = 1; | |
e9bb382b UW |
5064 | |
5065 | return t; | |
5066 | } | |
5067 | ||
5068 | /* Allocate a TYPE_CODE_CHAR type structure associated with GDBARCH. | |
5069 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
5070 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 5071 | |
e9bb382b UW |
5072 | struct type * |
5073 | arch_character_type (struct gdbarch *gdbarch, | |
695bfa52 | 5074 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
5075 | { |
5076 | struct type *t; | |
5077 | ||
77b7c781 | 5078 | t = arch_type (gdbarch, TYPE_CODE_CHAR, bit, name); |
e9bb382b UW |
5079 | if (unsigned_p) |
5080 | TYPE_UNSIGNED (t) = 1; | |
5081 | ||
5082 | return t; | |
5083 | } | |
5084 | ||
5085 | /* Allocate a TYPE_CODE_BOOL type structure associated with GDBARCH. | |
5086 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
5087 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 5088 | |
e9bb382b UW |
5089 | struct type * |
5090 | arch_boolean_type (struct gdbarch *gdbarch, | |
695bfa52 | 5091 | int bit, int unsigned_p, const char *name) |
e9bb382b UW |
5092 | { |
5093 | struct type *t; | |
5094 | ||
77b7c781 | 5095 | t = arch_type (gdbarch, TYPE_CODE_BOOL, bit, name); |
e9bb382b UW |
5096 | if (unsigned_p) |
5097 | TYPE_UNSIGNED (t) = 1; | |
5098 | ||
5099 | return t; | |
5100 | } | |
5101 | ||
5102 | /* Allocate a TYPE_CODE_FLT type structure associated with GDBARCH. | |
5103 | BIT is the type size in bits; if BIT equals -1, the size is | |
5104 | determined by the floatformat. NAME is the type name. Set the | |
5105 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
5212577a | 5106 | |
27067745 | 5107 | struct type * |
e9bb382b | 5108 | arch_float_type (struct gdbarch *gdbarch, |
695bfa52 TT |
5109 | int bit, const char *name, |
5110 | const struct floatformat **floatformats) | |
8da61cc4 | 5111 | { |
0db7851f | 5112 | const struct floatformat *fmt = floatformats[gdbarch_byte_order (gdbarch)]; |
8da61cc4 DJ |
5113 | struct type *t; |
5114 | ||
0db7851f | 5115 | bit = verify_floatformat (bit, fmt); |
77b7c781 | 5116 | t = arch_type (gdbarch, TYPE_CODE_FLT, bit, name); |
0db7851f | 5117 | TYPE_FLOATFORMAT (t) = fmt; |
b79497cb | 5118 | |
8da61cc4 DJ |
5119 | return t; |
5120 | } | |
5121 | ||
88dfca6c UW |
5122 | /* Allocate a TYPE_CODE_DECFLOAT type structure associated with GDBARCH. |
5123 | BIT is the type size in bits. NAME is the type name. */ | |
5124 | ||
5125 | struct type * | |
5126 | arch_decfloat_type (struct gdbarch *gdbarch, int bit, const char *name) | |
5127 | { | |
5128 | struct type *t; | |
5129 | ||
77b7c781 | 5130 | t = arch_type (gdbarch, TYPE_CODE_DECFLOAT, bit, name); |
88dfca6c UW |
5131 | return t; |
5132 | } | |
5133 | ||
e9bb382b UW |
5134 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with GDBARCH. |
5135 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
5212577a | 5136 | |
27067745 | 5137 | struct type * |
e9bb382b | 5138 | arch_complex_type (struct gdbarch *gdbarch, |
695bfa52 | 5139 | const char *name, struct type *target_type) |
27067745 UW |
5140 | { |
5141 | struct type *t; | |
d8734c88 | 5142 | |
e9bb382b | 5143 | t = arch_type (gdbarch, TYPE_CODE_COMPLEX, |
77b7c781 | 5144 | 2 * TYPE_LENGTH (target_type) * TARGET_CHAR_BIT, name); |
27067745 UW |
5145 | TYPE_TARGET_TYPE (t) = target_type; |
5146 | return t; | |
5147 | } | |
5148 | ||
88dfca6c UW |
5149 | /* Allocate a TYPE_CODE_PTR type structure associated with GDBARCH. |
5150 | BIT is the pointer type size in bits. NAME is the type name. | |
5151 | TARGET_TYPE is the pointer target type. Always sets the pointer type's | |
5152 | TYPE_UNSIGNED flag. */ | |
5153 | ||
5154 | struct type * | |
5155 | arch_pointer_type (struct gdbarch *gdbarch, | |
5156 | int bit, const char *name, struct type *target_type) | |
5157 | { | |
5158 | struct type *t; | |
5159 | ||
77b7c781 | 5160 | t = arch_type (gdbarch, TYPE_CODE_PTR, bit, name); |
88dfca6c UW |
5161 | TYPE_TARGET_TYPE (t) = target_type; |
5162 | TYPE_UNSIGNED (t) = 1; | |
5163 | return t; | |
5164 | } | |
5165 | ||
e9bb382b | 5166 | /* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH. |
77b7c781 | 5167 | NAME is the type name. BIT is the size of the flag word in bits. */ |
5212577a | 5168 | |
e9bb382b | 5169 | struct type * |
77b7c781 | 5170 | arch_flags_type (struct gdbarch *gdbarch, const char *name, int bit) |
e9bb382b | 5171 | { |
e9bb382b UW |
5172 | struct type *type; |
5173 | ||
77b7c781 | 5174 | type = arch_type (gdbarch, TYPE_CODE_FLAGS, bit, name); |
e9bb382b | 5175 | TYPE_UNSIGNED (type) = 1; |
81516450 DE |
5176 | TYPE_NFIELDS (type) = 0; |
5177 | /* Pre-allocate enough space assuming every field is one bit. */ | |
224c3ddb | 5178 | TYPE_FIELDS (type) |
77b7c781 | 5179 | = (struct field *) TYPE_ZALLOC (type, bit * sizeof (struct field)); |
e9bb382b UW |
5180 | |
5181 | return type; | |
5182 | } | |
5183 | ||
5184 | /* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
81516450 DE |
5185 | position BITPOS is called NAME. Pass NAME as "" for fields that |
5186 | should not be printed. */ | |
5187 | ||
5188 | void | |
5189 | append_flags_type_field (struct type *type, int start_bitpos, int nr_bits, | |
695bfa52 | 5190 | struct type *field_type, const char *name) |
81516450 DE |
5191 | { |
5192 | int type_bitsize = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
5193 | int field_nr = TYPE_NFIELDS (type); | |
5194 | ||
5195 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS); | |
5196 | gdb_assert (TYPE_NFIELDS (type) + 1 <= type_bitsize); | |
5197 | gdb_assert (start_bitpos >= 0 && start_bitpos < type_bitsize); | |
5198 | gdb_assert (nr_bits >= 1 && nr_bits <= type_bitsize); | |
5199 | gdb_assert (name != NULL); | |
5200 | ||
5201 | TYPE_FIELD_NAME (type, field_nr) = xstrdup (name); | |
5202 | TYPE_FIELD_TYPE (type, field_nr) = field_type; | |
5203 | SET_FIELD_BITPOS (TYPE_FIELD (type, field_nr), start_bitpos); | |
5204 | TYPE_FIELD_BITSIZE (type, field_nr) = nr_bits; | |
5205 | ++TYPE_NFIELDS (type); | |
5206 | } | |
5207 | ||
5208 | /* Special version of append_flags_type_field to add a flag field. | |
5209 | Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
e9bb382b | 5210 | position BITPOS is called NAME. */ |
5212577a | 5211 | |
e9bb382b | 5212 | void |
695bfa52 | 5213 | append_flags_type_flag (struct type *type, int bitpos, const char *name) |
e9bb382b | 5214 | { |
81516450 | 5215 | struct gdbarch *gdbarch = get_type_arch (type); |
e9bb382b | 5216 | |
81516450 DE |
5217 | append_flags_type_field (type, bitpos, 1, |
5218 | builtin_type (gdbarch)->builtin_bool, | |
5219 | name); | |
e9bb382b UW |
5220 | } |
5221 | ||
5222 | /* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as | |
5223 | specified by CODE) associated with GDBARCH. NAME is the type name. */ | |
5212577a | 5224 | |
e9bb382b | 5225 | struct type * |
695bfa52 TT |
5226 | arch_composite_type (struct gdbarch *gdbarch, const char *name, |
5227 | enum type_code code) | |
e9bb382b UW |
5228 | { |
5229 | struct type *t; | |
d8734c88 | 5230 | |
e9bb382b UW |
5231 | gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION); |
5232 | t = arch_type (gdbarch, code, 0, NULL); | |
e86ca25f | 5233 | TYPE_NAME (t) = name; |
e9bb382b UW |
5234 | INIT_CPLUS_SPECIFIC (t); |
5235 | return t; | |
5236 | } | |
5237 | ||
5238 | /* Add new field with name NAME and type FIELD to composite type T. | |
f5dff777 DJ |
5239 | Do not set the field's position or adjust the type's length; |
5240 | the caller should do so. Return the new field. */ | |
5212577a | 5241 | |
f5dff777 | 5242 | struct field * |
695bfa52 | 5243 | append_composite_type_field_raw (struct type *t, const char *name, |
f5dff777 | 5244 | struct type *field) |
e9bb382b UW |
5245 | { |
5246 | struct field *f; | |
d8734c88 | 5247 | |
e9bb382b | 5248 | TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; |
224c3ddb SM |
5249 | TYPE_FIELDS (t) = XRESIZEVEC (struct field, TYPE_FIELDS (t), |
5250 | TYPE_NFIELDS (t)); | |
e9bb382b UW |
5251 | f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); |
5252 | memset (f, 0, sizeof f[0]); | |
5253 | FIELD_TYPE (f[0]) = field; | |
5254 | FIELD_NAME (f[0]) = name; | |
f5dff777 DJ |
5255 | return f; |
5256 | } | |
5257 | ||
5258 | /* Add new field with name NAME and type FIELD to composite type T. | |
5259 | ALIGNMENT (if non-zero) specifies the minimum field alignment. */ | |
5212577a | 5260 | |
f5dff777 | 5261 | void |
695bfa52 | 5262 | append_composite_type_field_aligned (struct type *t, const char *name, |
f5dff777 DJ |
5263 | struct type *field, int alignment) |
5264 | { | |
5265 | struct field *f = append_composite_type_field_raw (t, name, field); | |
d8734c88 | 5266 | |
e9bb382b UW |
5267 | if (TYPE_CODE (t) == TYPE_CODE_UNION) |
5268 | { | |
5269 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) | |
5270 | TYPE_LENGTH (t) = TYPE_LENGTH (field); | |
5271 | } | |
5272 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
5273 | { | |
5274 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
5275 | if (TYPE_NFIELDS (t) > 1) | |
5276 | { | |
f41f5e61 PA |
5277 | SET_FIELD_BITPOS (f[0], |
5278 | (FIELD_BITPOS (f[-1]) | |
5279 | + (TYPE_LENGTH (FIELD_TYPE (f[-1])) | |
5280 | * TARGET_CHAR_BIT))); | |
e9bb382b UW |
5281 | |
5282 | if (alignment) | |
5283 | { | |
86c3c1fc AB |
5284 | int left; |
5285 | ||
5286 | alignment *= TARGET_CHAR_BIT; | |
5287 | left = FIELD_BITPOS (f[0]) % alignment; | |
d8734c88 | 5288 | |
e9bb382b UW |
5289 | if (left) |
5290 | { | |
f41f5e61 | 5291 | SET_FIELD_BITPOS (f[0], FIELD_BITPOS (f[0]) + (alignment - left)); |
86c3c1fc | 5292 | TYPE_LENGTH (t) += (alignment - left) / TARGET_CHAR_BIT; |
e9bb382b UW |
5293 | } |
5294 | } | |
5295 | } | |
5296 | } | |
5297 | } | |
5298 | ||
5299 | /* Add new field with name NAME and type FIELD to composite type T. */ | |
5212577a | 5300 | |
e9bb382b | 5301 | void |
695bfa52 | 5302 | append_composite_type_field (struct type *t, const char *name, |
e9bb382b UW |
5303 | struct type *field) |
5304 | { | |
5305 | append_composite_type_field_aligned (t, name, field, 0); | |
5306 | } | |
5307 | ||
000177f0 AC |
5308 | static struct gdbarch_data *gdbtypes_data; |
5309 | ||
5310 | const struct builtin_type * | |
5311 | builtin_type (struct gdbarch *gdbarch) | |
5312 | { | |
9a3c8263 | 5313 | return (const struct builtin_type *) gdbarch_data (gdbarch, gdbtypes_data); |
000177f0 AC |
5314 | } |
5315 | ||
5316 | static void * | |
5317 | gdbtypes_post_init (struct gdbarch *gdbarch) | |
5318 | { | |
5319 | struct builtin_type *builtin_type | |
5320 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); | |
5321 | ||
46bf5051 | 5322 | /* Basic types. */ |
e9bb382b | 5323 | builtin_type->builtin_void |
77b7c781 | 5324 | = arch_type (gdbarch, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void"); |
e9bb382b UW |
5325 | builtin_type->builtin_char |
5326 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5327 | !gdbarch_char_signed (gdbarch), "char"); | |
c413c448 | 5328 | TYPE_NOSIGN (builtin_type->builtin_char) = 1; |
e9bb382b UW |
5329 | builtin_type->builtin_signed_char |
5330 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5331 | 0, "signed char"); | |
5332 | builtin_type->builtin_unsigned_char | |
5333 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
5334 | 1, "unsigned char"); | |
5335 | builtin_type->builtin_short | |
5336 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
5337 | 0, "short"); | |
5338 | builtin_type->builtin_unsigned_short | |
5339 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
5340 | 1, "unsigned short"); | |
5341 | builtin_type->builtin_int | |
5342 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
5343 | 0, "int"); | |
5344 | builtin_type->builtin_unsigned_int | |
5345 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
5346 | 1, "unsigned int"); | |
5347 | builtin_type->builtin_long | |
5348 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
5349 | 0, "long"); | |
5350 | builtin_type->builtin_unsigned_long | |
5351 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
5352 | 1, "unsigned long"); | |
5353 | builtin_type->builtin_long_long | |
5354 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
5355 | 0, "long long"); | |
5356 | builtin_type->builtin_unsigned_long_long | |
5357 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
5358 | 1, "unsigned long long"); | |
a6d0f249 AH |
5359 | builtin_type->builtin_half |
5360 | = arch_float_type (gdbarch, gdbarch_half_bit (gdbarch), | |
5361 | "half", gdbarch_half_format (gdbarch)); | |
70bd8e24 | 5362 | builtin_type->builtin_float |
e9bb382b | 5363 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), |
27067745 | 5364 | "float", gdbarch_float_format (gdbarch)); |
70bd8e24 | 5365 | builtin_type->builtin_double |
e9bb382b | 5366 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), |
27067745 | 5367 | "double", gdbarch_double_format (gdbarch)); |
70bd8e24 | 5368 | builtin_type->builtin_long_double |
e9bb382b | 5369 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), |
27067745 | 5370 | "long double", gdbarch_long_double_format (gdbarch)); |
70bd8e24 | 5371 | builtin_type->builtin_complex |
e9bb382b UW |
5372 | = arch_complex_type (gdbarch, "complex", |
5373 | builtin_type->builtin_float); | |
70bd8e24 | 5374 | builtin_type->builtin_double_complex |
e9bb382b UW |
5375 | = arch_complex_type (gdbarch, "double complex", |
5376 | builtin_type->builtin_double); | |
5377 | builtin_type->builtin_string | |
77b7c781 | 5378 | = arch_type (gdbarch, TYPE_CODE_STRING, TARGET_CHAR_BIT, "string"); |
e9bb382b | 5379 | builtin_type->builtin_bool |
77b7c781 | 5380 | = arch_type (gdbarch, TYPE_CODE_BOOL, TARGET_CHAR_BIT, "bool"); |
000177f0 | 5381 | |
7678ef8f TJB |
5382 | /* The following three are about decimal floating point types, which |
5383 | are 32-bits, 64-bits and 128-bits respectively. */ | |
5384 | builtin_type->builtin_decfloat | |
88dfca6c | 5385 | = arch_decfloat_type (gdbarch, 32, "_Decimal32"); |
7678ef8f | 5386 | builtin_type->builtin_decdouble |
88dfca6c | 5387 | = arch_decfloat_type (gdbarch, 64, "_Decimal64"); |
7678ef8f | 5388 | builtin_type->builtin_declong |
88dfca6c | 5389 | = arch_decfloat_type (gdbarch, 128, "_Decimal128"); |
7678ef8f | 5390 | |
69feb676 | 5391 | /* "True" character types. */ |
e9bb382b UW |
5392 | builtin_type->builtin_true_char |
5393 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 0, "true character"); | |
5394 | builtin_type->builtin_true_unsigned_char | |
5395 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 1, "true character"); | |
69feb676 | 5396 | |
df4df182 | 5397 | /* Fixed-size integer types. */ |
e9bb382b UW |
5398 | builtin_type->builtin_int0 |
5399 | = arch_integer_type (gdbarch, 0, 0, "int0_t"); | |
5400 | builtin_type->builtin_int8 | |
5401 | = arch_integer_type (gdbarch, 8, 0, "int8_t"); | |
5402 | builtin_type->builtin_uint8 | |
5403 | = arch_integer_type (gdbarch, 8, 1, "uint8_t"); | |
5404 | builtin_type->builtin_int16 | |
5405 | = arch_integer_type (gdbarch, 16, 0, "int16_t"); | |
5406 | builtin_type->builtin_uint16 | |
5407 | = arch_integer_type (gdbarch, 16, 1, "uint16_t"); | |
d1908f2d JD |
5408 | builtin_type->builtin_int24 |
5409 | = arch_integer_type (gdbarch, 24, 0, "int24_t"); | |
5410 | builtin_type->builtin_uint24 | |
5411 | = arch_integer_type (gdbarch, 24, 1, "uint24_t"); | |
e9bb382b UW |
5412 | builtin_type->builtin_int32 |
5413 | = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
5414 | builtin_type->builtin_uint32 | |
5415 | = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
5416 | builtin_type->builtin_int64 | |
5417 | = arch_integer_type (gdbarch, 64, 0, "int64_t"); | |
5418 | builtin_type->builtin_uint64 | |
5419 | = arch_integer_type (gdbarch, 64, 1, "uint64_t"); | |
5420 | builtin_type->builtin_int128 | |
5421 | = arch_integer_type (gdbarch, 128, 0, "int128_t"); | |
5422 | builtin_type->builtin_uint128 | |
5423 | = arch_integer_type (gdbarch, 128, 1, "uint128_t"); | |
2844d6b5 KW |
5424 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_int8) |= |
5425 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
5426 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_uint8) |= | |
5427 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
df4df182 | 5428 | |
9a22f0d0 PM |
5429 | /* Wide character types. */ |
5430 | builtin_type->builtin_char16 | |
53e710ac | 5431 | = arch_integer_type (gdbarch, 16, 1, "char16_t"); |
9a22f0d0 | 5432 | builtin_type->builtin_char32 |
53e710ac | 5433 | = arch_integer_type (gdbarch, 32, 1, "char32_t"); |
53375380 PA |
5434 | builtin_type->builtin_wchar |
5435 | = arch_integer_type (gdbarch, gdbarch_wchar_bit (gdbarch), | |
5436 | !gdbarch_wchar_signed (gdbarch), "wchar_t"); | |
9a22f0d0 | 5437 | |
46bf5051 | 5438 | /* Default data/code pointer types. */ |
e9bb382b UW |
5439 | builtin_type->builtin_data_ptr |
5440 | = lookup_pointer_type (builtin_type->builtin_void); | |
5441 | builtin_type->builtin_func_ptr | |
5442 | = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
0875794a JK |
5443 | builtin_type->builtin_func_func |
5444 | = lookup_function_type (builtin_type->builtin_func_ptr); | |
46bf5051 | 5445 | |
78267919 | 5446 | /* This type represents a GDB internal function. */ |
e9bb382b UW |
5447 | builtin_type->internal_fn |
5448 | = arch_type (gdbarch, TYPE_CODE_INTERNAL_FUNCTION, 0, | |
5449 | "<internal function>"); | |
78267919 | 5450 | |
e81e7f5e SC |
5451 | /* This type represents an xmethod. */ |
5452 | builtin_type->xmethod | |
5453 | = arch_type (gdbarch, TYPE_CODE_XMETHOD, 0, "<xmethod>"); | |
5454 | ||
46bf5051 UW |
5455 | return builtin_type; |
5456 | } | |
5457 | ||
46bf5051 UW |
5458 | /* This set of objfile-based types is intended to be used by symbol |
5459 | readers as basic types. */ | |
5460 | ||
7a102139 TT |
5461 | static const struct objfile_key<struct objfile_type, |
5462 | gdb::noop_deleter<struct objfile_type>> | |
5463 | objfile_type_data; | |
46bf5051 UW |
5464 | |
5465 | const struct objfile_type * | |
5466 | objfile_type (struct objfile *objfile) | |
5467 | { | |
5468 | struct gdbarch *gdbarch; | |
7a102139 | 5469 | struct objfile_type *objfile_type = objfile_type_data.get (objfile); |
46bf5051 UW |
5470 | |
5471 | if (objfile_type) | |
5472 | return objfile_type; | |
5473 | ||
5474 | objfile_type = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
5475 | 1, struct objfile_type); | |
5476 | ||
5477 | /* Use the objfile architecture to determine basic type properties. */ | |
5478 | gdbarch = get_objfile_arch (objfile); | |
5479 | ||
5480 | /* Basic types. */ | |
5481 | objfile_type->builtin_void | |
77b7c781 | 5482 | = init_type (objfile, TYPE_CODE_VOID, TARGET_CHAR_BIT, "void"); |
46bf5051 | 5483 | objfile_type->builtin_char |
19f392bc UW |
5484 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5485 | !gdbarch_char_signed (gdbarch), "char"); | |
c413c448 | 5486 | TYPE_NOSIGN (objfile_type->builtin_char) = 1; |
46bf5051 | 5487 | objfile_type->builtin_signed_char |
19f392bc UW |
5488 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5489 | 0, "signed char"); | |
46bf5051 | 5490 | objfile_type->builtin_unsigned_char |
19f392bc UW |
5491 | = init_integer_type (objfile, TARGET_CHAR_BIT, |
5492 | 1, "unsigned char"); | |
46bf5051 | 5493 | objfile_type->builtin_short |
19f392bc UW |
5494 | = init_integer_type (objfile, gdbarch_short_bit (gdbarch), |
5495 | 0, "short"); | |
46bf5051 | 5496 | objfile_type->builtin_unsigned_short |
19f392bc UW |
5497 | = init_integer_type (objfile, gdbarch_short_bit (gdbarch), |
5498 | 1, "unsigned short"); | |
46bf5051 | 5499 | objfile_type->builtin_int |
19f392bc UW |
5500 | = init_integer_type (objfile, gdbarch_int_bit (gdbarch), |
5501 | 0, "int"); | |
46bf5051 | 5502 | objfile_type->builtin_unsigned_int |
19f392bc UW |
5503 | = init_integer_type (objfile, gdbarch_int_bit (gdbarch), |
5504 | 1, "unsigned int"); | |
46bf5051 | 5505 | objfile_type->builtin_long |
19f392bc UW |
5506 | = init_integer_type (objfile, gdbarch_long_bit (gdbarch), |
5507 | 0, "long"); | |
46bf5051 | 5508 | objfile_type->builtin_unsigned_long |
19f392bc UW |
5509 | = init_integer_type (objfile, gdbarch_long_bit (gdbarch), |
5510 | 1, "unsigned long"); | |
46bf5051 | 5511 | objfile_type->builtin_long_long |
19f392bc UW |
5512 | = init_integer_type (objfile, gdbarch_long_long_bit (gdbarch), |
5513 | 0, "long long"); | |
46bf5051 | 5514 | objfile_type->builtin_unsigned_long_long |
19f392bc UW |
5515 | = init_integer_type (objfile, gdbarch_long_long_bit (gdbarch), |
5516 | 1, "unsigned long long"); | |
46bf5051 | 5517 | objfile_type->builtin_float |
19f392bc UW |
5518 | = init_float_type (objfile, gdbarch_float_bit (gdbarch), |
5519 | "float", gdbarch_float_format (gdbarch)); | |
46bf5051 | 5520 | objfile_type->builtin_double |
19f392bc UW |
5521 | = init_float_type (objfile, gdbarch_double_bit (gdbarch), |
5522 | "double", gdbarch_double_format (gdbarch)); | |
46bf5051 | 5523 | objfile_type->builtin_long_double |
19f392bc UW |
5524 | = init_float_type (objfile, gdbarch_long_double_bit (gdbarch), |
5525 | "long double", gdbarch_long_double_format (gdbarch)); | |
46bf5051 UW |
5526 | |
5527 | /* This type represents a type that was unrecognized in symbol read-in. */ | |
5528 | objfile_type->builtin_error | |
19f392bc | 5529 | = init_type (objfile, TYPE_CODE_ERROR, 0, "<unknown type>"); |
46bf5051 UW |
5530 | |
5531 | /* The following set of types is used for symbols with no | |
5532 | debug information. */ | |
5533 | objfile_type->nodebug_text_symbol | |
77b7c781 | 5534 | = init_type (objfile, TYPE_CODE_FUNC, TARGET_CHAR_BIT, |
19f392bc | 5535 | "<text variable, no debug info>"); |
0875794a | 5536 | objfile_type->nodebug_text_gnu_ifunc_symbol |
77b7c781 | 5537 | = init_type (objfile, TYPE_CODE_FUNC, TARGET_CHAR_BIT, |
19f392bc | 5538 | "<text gnu-indirect-function variable, no debug info>"); |
19f392bc | 5539 | TYPE_GNU_IFUNC (objfile_type->nodebug_text_gnu_ifunc_symbol) = 1; |
0875794a | 5540 | objfile_type->nodebug_got_plt_symbol |
19f392bc UW |
5541 | = init_pointer_type (objfile, gdbarch_addr_bit (gdbarch), |
5542 | "<text from jump slot in .got.plt, no debug info>", | |
5543 | objfile_type->nodebug_text_symbol); | |
46bf5051 | 5544 | objfile_type->nodebug_data_symbol |
46a4882b | 5545 | = init_nodebug_var_type (objfile, "<data variable, no debug info>"); |
46bf5051 | 5546 | objfile_type->nodebug_unknown_symbol |
46a4882b | 5547 | = init_nodebug_var_type (objfile, "<variable (not text or data), no debug info>"); |
46bf5051 | 5548 | objfile_type->nodebug_tls_symbol |
46a4882b | 5549 | = init_nodebug_var_type (objfile, "<thread local variable, no debug info>"); |
000177f0 AC |
5550 | |
5551 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
0a7cfe2c | 5552 | the same. |
000177f0 AC |
5553 | |
5554 | The upshot is: | |
5555 | - gdb's `struct type' always describes the target's | |
5556 | representation. | |
5557 | - gdb's `struct value' objects should always hold values in | |
5558 | target form. | |
5559 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
5560 | address space that the assembler and linker work with. Thus, | |
5561 | since target_read_memory takes a CORE_ADDR as an argument, it | |
5562 | can access any memory on the target, even if the processor has | |
5563 | separate code and data address spaces. | |
5564 | ||
46bf5051 UW |
5565 | In this context, objfile_type->builtin_core_addr is a bit odd: |
5566 | it's a target type for a value the target will never see. It's | |
5567 | only used to hold the values of (typeless) linker symbols, which | |
5568 | are indeed in the unified virtual address space. */ | |
000177f0 | 5569 | |
46bf5051 | 5570 | objfile_type->builtin_core_addr |
19f392bc UW |
5571 | = init_integer_type (objfile, gdbarch_addr_bit (gdbarch), 1, |
5572 | "__CORE_ADDR"); | |
64c50499 | 5573 | |
7a102139 | 5574 | objfile_type_data.set (objfile, objfile_type); |
46bf5051 | 5575 | return objfile_type; |
000177f0 AC |
5576 | } |
5577 | ||
c906108c | 5578 | void |
fba45db2 | 5579 | _initialize_gdbtypes (void) |
c906108c | 5580 | { |
5674de60 UW |
5581 | gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
5582 | ||
ccce17b0 YQ |
5583 | add_setshow_zuinteger_cmd ("overload", no_class, &overload_debug, |
5584 | _("Set debugging of C++ overloading."), | |
5585 | _("Show debugging of C++ overloading."), | |
5586 | _("When enabled, ranking of the " | |
5587 | "functions is displayed."), | |
5588 | NULL, | |
5589 | show_overload_debug, | |
5590 | &setdebuglist, &showdebuglist); | |
5674de60 | 5591 | |
7ba81444 | 5592 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 | 5593 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3e43a32a MS |
5594 | &opaque_type_resolution, |
5595 | _("Set resolution of opaque struct/class/union" | |
5596 | " types (if set before loading symbols)."), | |
5597 | _("Show resolution of opaque struct/class/union" | |
5598 | " types (if set before loading symbols)."), | |
5599 | NULL, NULL, | |
5674de60 UW |
5600 | show_opaque_type_resolution, |
5601 | &setlist, &showlist); | |
a451cb65 KS |
5602 | |
5603 | /* Add an option to permit non-strict type checking. */ | |
5604 | add_setshow_boolean_cmd ("type", class_support, | |
5605 | &strict_type_checking, | |
5606 | _("Set strict type checking."), | |
5607 | _("Show strict type checking."), | |
5608 | NULL, NULL, | |
5609 | show_strict_type_checking, | |
5610 | &setchecklist, &showchecklist); | |
c906108c | 5611 | } |