Commit | Line | Data |
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c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
4f2aea11 | 2 | |
28e7fd62 | 3 | Copyright (C) 1992-2013 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" | |
23 | #include "gdb_string.h" | |
24 | #include "bfd.h" | |
25 | #include "symtab.h" | |
26 | #include "symfile.h" | |
27 | #include "objfiles.h" | |
28 | #include "gdbtypes.h" | |
29 | #include "expression.h" | |
30 | #include "language.h" | |
31 | #include "target.h" | |
32 | #include "value.h" | |
33 | #include "demangle.h" | |
34 | #include "complaints.h" | |
35 | #include "gdbcmd.h" | |
015a42b4 | 36 | #include "cp-abi.h" |
a02fd225 | 37 | #include "gdb_assert.h" |
ae5a43e0 | 38 | #include "hashtab.h" |
8e7b59a5 | 39 | #include "exceptions.h" |
8de20a37 | 40 | #include "cp-support.h" |
ac3aafc7 | 41 | |
6403aeea SW |
42 | /* Initialize BADNESS constants. */ |
43 | ||
a9d5ef47 | 44 | const struct rank LENGTH_MISMATCH_BADNESS = {100,0}; |
6403aeea | 45 | |
a9d5ef47 SW |
46 | const struct rank TOO_FEW_PARAMS_BADNESS = {100,0}; |
47 | const struct rank INCOMPATIBLE_TYPE_BADNESS = {100,0}; | |
6403aeea | 48 | |
a9d5ef47 | 49 | const struct rank EXACT_MATCH_BADNESS = {0,0}; |
6403aeea | 50 | |
a9d5ef47 SW |
51 | const struct rank INTEGER_PROMOTION_BADNESS = {1,0}; |
52 | const struct rank FLOAT_PROMOTION_BADNESS = {1,0}; | |
53 | const struct rank BASE_PTR_CONVERSION_BADNESS = {1,0}; | |
54 | const struct rank INTEGER_CONVERSION_BADNESS = {2,0}; | |
55 | const struct rank FLOAT_CONVERSION_BADNESS = {2,0}; | |
56 | const struct rank INT_FLOAT_CONVERSION_BADNESS = {2,0}; | |
57 | const struct rank VOID_PTR_CONVERSION_BADNESS = {2,0}; | |
5b4f6e25 | 58 | const struct rank BOOL_CONVERSION_BADNESS = {3,0}; |
a9d5ef47 SW |
59 | const struct rank BASE_CONVERSION_BADNESS = {2,0}; |
60 | const struct rank REFERENCE_CONVERSION_BADNESS = {2,0}; | |
da096638 | 61 | const struct rank NULL_POINTER_CONVERSION_BADNESS = {2,0}; |
a9d5ef47 | 62 | const struct rank NS_POINTER_CONVERSION_BADNESS = {10,0}; |
a451cb65 | 63 | const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS = {3,0}; |
6403aeea | 64 | |
8da61cc4 | 65 | /* Floatformat pairs. */ |
f9e9243a UW |
66 | const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN] = { |
67 | &floatformat_ieee_half_big, | |
68 | &floatformat_ieee_half_little | |
69 | }; | |
8da61cc4 DJ |
70 | const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { |
71 | &floatformat_ieee_single_big, | |
72 | &floatformat_ieee_single_little | |
73 | }; | |
74 | const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { | |
75 | &floatformat_ieee_double_big, | |
76 | &floatformat_ieee_double_little | |
77 | }; | |
78 | const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { | |
79 | &floatformat_ieee_double_big, | |
80 | &floatformat_ieee_double_littlebyte_bigword | |
81 | }; | |
82 | const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { | |
83 | &floatformat_i387_ext, | |
84 | &floatformat_i387_ext | |
85 | }; | |
86 | const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { | |
87 | &floatformat_m68881_ext, | |
88 | &floatformat_m68881_ext | |
89 | }; | |
90 | const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { | |
91 | &floatformat_arm_ext_big, | |
92 | &floatformat_arm_ext_littlebyte_bigword | |
93 | }; | |
94 | const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { | |
95 | &floatformat_ia64_spill_big, | |
96 | &floatformat_ia64_spill_little | |
97 | }; | |
98 | const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = { | |
99 | &floatformat_ia64_quad_big, | |
100 | &floatformat_ia64_quad_little | |
101 | }; | |
102 | const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { | |
103 | &floatformat_vax_f, | |
104 | &floatformat_vax_f | |
105 | }; | |
106 | const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { | |
107 | &floatformat_vax_d, | |
108 | &floatformat_vax_d | |
109 | }; | |
b14d30e1 JM |
110 | const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { |
111 | &floatformat_ibm_long_double, | |
112 | &floatformat_ibm_long_double | |
113 | }; | |
8da61cc4 | 114 | |
2873700e KS |
115 | /* Should opaque types be resolved? */ |
116 | ||
117 | static int opaque_type_resolution = 1; | |
118 | ||
119 | /* A flag to enable printing of debugging information of C++ | |
120 | overloading. */ | |
121 | ||
122 | unsigned int overload_debug = 0; | |
123 | ||
a451cb65 KS |
124 | /* A flag to enable strict type checking. */ |
125 | ||
126 | static int strict_type_checking = 1; | |
127 | ||
2873700e | 128 | /* A function to show whether opaque types are resolved. */ |
5212577a | 129 | |
920d2a44 AC |
130 | static void |
131 | show_opaque_type_resolution (struct ui_file *file, int from_tty, | |
7ba81444 MS |
132 | struct cmd_list_element *c, |
133 | const char *value) | |
920d2a44 | 134 | { |
3e43a32a MS |
135 | fprintf_filtered (file, _("Resolution of opaque struct/class/union types " |
136 | "(if set before loading symbols) is %s.\n"), | |
920d2a44 AC |
137 | value); |
138 | } | |
139 | ||
2873700e | 140 | /* A function to show whether C++ overload debugging is enabled. */ |
5212577a | 141 | |
920d2a44 AC |
142 | static void |
143 | show_overload_debug (struct ui_file *file, int from_tty, | |
144 | struct cmd_list_element *c, const char *value) | |
145 | { | |
7ba81444 MS |
146 | fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"), |
147 | value); | |
920d2a44 | 148 | } |
c906108c | 149 | |
a451cb65 KS |
150 | /* A function to show the status of strict type checking. */ |
151 | ||
152 | static void | |
153 | show_strict_type_checking (struct ui_file *file, int from_tty, | |
154 | struct cmd_list_element *c, const char *value) | |
155 | { | |
156 | fprintf_filtered (file, _("Strict type checking is %s.\n"), value); | |
157 | } | |
158 | ||
5212577a | 159 | \f |
e9bb382b UW |
160 | /* Allocate a new OBJFILE-associated type structure and fill it |
161 | with some defaults. Space for the type structure is allocated | |
162 | on the objfile's objfile_obstack. */ | |
c906108c SS |
163 | |
164 | struct type * | |
fba45db2 | 165 | alloc_type (struct objfile *objfile) |
c906108c | 166 | { |
52f0bd74 | 167 | struct type *type; |
c906108c | 168 | |
e9bb382b UW |
169 | gdb_assert (objfile != NULL); |
170 | ||
7ba81444 | 171 | /* Alloc the structure and start off with all fields zeroed. */ |
e9bb382b UW |
172 | type = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct type); |
173 | TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (&objfile->objfile_obstack, | |
174 | struct main_type); | |
175 | OBJSTAT (objfile, n_types++); | |
c906108c | 176 | |
e9bb382b UW |
177 | TYPE_OBJFILE_OWNED (type) = 1; |
178 | TYPE_OWNER (type).objfile = objfile; | |
c906108c | 179 | |
7ba81444 | 180 | /* Initialize the fields that might not be zero. */ |
c906108c SS |
181 | |
182 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
c906108c | 183 | TYPE_VPTR_FIELDNO (type) = -1; |
2fdde8f8 | 184 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
c906108c | 185 | |
c16abbde | 186 | return type; |
c906108c SS |
187 | } |
188 | ||
e9bb382b UW |
189 | /* Allocate a new GDBARCH-associated type structure and fill it |
190 | with some defaults. Space for the type structure is allocated | |
191 | on the heap. */ | |
192 | ||
193 | struct type * | |
194 | alloc_type_arch (struct gdbarch *gdbarch) | |
195 | { | |
196 | struct type *type; | |
197 | ||
198 | gdb_assert (gdbarch != NULL); | |
199 | ||
200 | /* Alloc the structure and start off with all fields zeroed. */ | |
201 | ||
202 | type = XZALLOC (struct type); | |
203 | TYPE_MAIN_TYPE (type) = XZALLOC (struct main_type); | |
204 | ||
205 | TYPE_OBJFILE_OWNED (type) = 0; | |
206 | TYPE_OWNER (type).gdbarch = gdbarch; | |
207 | ||
208 | /* Initialize the fields that might not be zero. */ | |
209 | ||
210 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
211 | TYPE_VPTR_FIELDNO (type) = -1; | |
212 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ | |
213 | ||
214 | return type; | |
215 | } | |
216 | ||
217 | /* If TYPE is objfile-associated, allocate a new type structure | |
218 | associated with the same objfile. If TYPE is gdbarch-associated, | |
219 | allocate a new type structure associated with the same gdbarch. */ | |
220 | ||
221 | struct type * | |
222 | alloc_type_copy (const struct type *type) | |
223 | { | |
224 | if (TYPE_OBJFILE_OWNED (type)) | |
225 | return alloc_type (TYPE_OWNER (type).objfile); | |
226 | else | |
227 | return alloc_type_arch (TYPE_OWNER (type).gdbarch); | |
228 | } | |
229 | ||
230 | /* If TYPE is gdbarch-associated, return that architecture. | |
231 | If TYPE is objfile-associated, return that objfile's architecture. */ | |
232 | ||
233 | struct gdbarch * | |
234 | get_type_arch (const struct type *type) | |
235 | { | |
236 | if (TYPE_OBJFILE_OWNED (type)) | |
237 | return get_objfile_arch (TYPE_OWNER (type).objfile); | |
238 | else | |
239 | return TYPE_OWNER (type).gdbarch; | |
240 | } | |
241 | ||
2fdde8f8 DJ |
242 | /* Alloc a new type instance structure, fill it with some defaults, |
243 | and point it at OLDTYPE. Allocate the new type instance from the | |
244 | same place as OLDTYPE. */ | |
245 | ||
246 | static struct type * | |
247 | alloc_type_instance (struct type *oldtype) | |
248 | { | |
249 | struct type *type; | |
250 | ||
251 | /* Allocate the structure. */ | |
252 | ||
e9bb382b | 253 | if (! TYPE_OBJFILE_OWNED (oldtype)) |
1deafd4e | 254 | type = XZALLOC (struct type); |
2fdde8f8 | 255 | else |
1deafd4e PA |
256 | type = OBSTACK_ZALLOC (&TYPE_OBJFILE (oldtype)->objfile_obstack, |
257 | struct type); | |
258 | ||
2fdde8f8 DJ |
259 | TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype); |
260 | ||
261 | TYPE_CHAIN (type) = type; /* Chain back to itself for now. */ | |
262 | ||
c16abbde | 263 | return type; |
2fdde8f8 DJ |
264 | } |
265 | ||
266 | /* Clear all remnants of the previous type at TYPE, in preparation for | |
e9bb382b | 267 | replacing it with something else. Preserve owner information. */ |
5212577a | 268 | |
2fdde8f8 DJ |
269 | static void |
270 | smash_type (struct type *type) | |
271 | { | |
e9bb382b UW |
272 | int objfile_owned = TYPE_OBJFILE_OWNED (type); |
273 | union type_owner owner = TYPE_OWNER (type); | |
274 | ||
2fdde8f8 DJ |
275 | memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
276 | ||
e9bb382b UW |
277 | /* Restore owner information. */ |
278 | TYPE_OBJFILE_OWNED (type) = objfile_owned; | |
279 | TYPE_OWNER (type) = owner; | |
280 | ||
2fdde8f8 DJ |
281 | /* For now, delete the rings. */ |
282 | TYPE_CHAIN (type) = type; | |
283 | ||
284 | /* For now, leave the pointer/reference types alone. */ | |
285 | } | |
286 | ||
c906108c SS |
287 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
288 | to a pointer to memory where the pointer type should be stored. | |
289 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
290 | We allocate new memory if needed. */ | |
291 | ||
292 | struct type * | |
fba45db2 | 293 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 294 | { |
52f0bd74 | 295 | struct type *ntype; /* New type */ |
053cb41b | 296 | struct type *chain; |
c906108c SS |
297 | |
298 | ntype = TYPE_POINTER_TYPE (type); | |
299 | ||
c5aa993b | 300 | if (ntype) |
c906108c | 301 | { |
c5aa993b | 302 | if (typeptr == 0) |
7ba81444 MS |
303 | return ntype; /* Don't care about alloc, |
304 | and have new type. */ | |
c906108c | 305 | else if (*typeptr == 0) |
c5aa993b | 306 | { |
7ba81444 | 307 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 308 | return ntype; |
c5aa993b | 309 | } |
c906108c SS |
310 | } |
311 | ||
312 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
313 | { | |
e9bb382b | 314 | ntype = alloc_type_copy (type); |
c906108c SS |
315 | if (typeptr) |
316 | *typeptr = ntype; | |
317 | } | |
7ba81444 | 318 | else /* We have storage, but need to reset it. */ |
c906108c SS |
319 | { |
320 | ntype = *typeptr; | |
053cb41b | 321 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 322 | smash_type (ntype); |
053cb41b | 323 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
324 | } |
325 | ||
326 | TYPE_TARGET_TYPE (ntype) = type; | |
327 | TYPE_POINTER_TYPE (type) = ntype; | |
328 | ||
5212577a | 329 | /* FIXME! Assumes the machine has only one representation for pointers! */ |
c906108c | 330 | |
50810684 UW |
331 | TYPE_LENGTH (ntype) |
332 | = gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c SS |
333 | TYPE_CODE (ntype) = TYPE_CODE_PTR; |
334 | ||
67b2adb2 | 335 | /* Mark pointers as unsigned. The target converts between pointers |
76e71323 | 336 | and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and |
7ba81444 | 337 | gdbarch_address_to_pointer. */ |
876cecd0 | 338 | TYPE_UNSIGNED (ntype) = 1; |
c5aa993b | 339 | |
053cb41b JB |
340 | /* Update the length of all the other variants of this type. */ |
341 | chain = TYPE_CHAIN (ntype); | |
342 | while (chain != ntype) | |
343 | { | |
344 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
345 | chain = TYPE_CHAIN (chain); | |
346 | } | |
347 | ||
c906108c SS |
348 | return ntype; |
349 | } | |
350 | ||
351 | /* Given a type TYPE, return a type of pointers to that type. | |
352 | May need to construct such a type if this is the first use. */ | |
353 | ||
354 | struct type * | |
fba45db2 | 355 | lookup_pointer_type (struct type *type) |
c906108c | 356 | { |
c5aa993b | 357 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
358 | } |
359 | ||
7ba81444 MS |
360 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, |
361 | points to a pointer to memory where the reference type should be | |
362 | stored. If *TYPEPTR is zero, update it to point to the reference | |
363 | type we return. We allocate new memory if needed. */ | |
c906108c SS |
364 | |
365 | struct type * | |
fba45db2 | 366 | make_reference_type (struct type *type, struct type **typeptr) |
c906108c | 367 | { |
52f0bd74 | 368 | struct type *ntype; /* New type */ |
1e98b326 | 369 | struct type *chain; |
c906108c SS |
370 | |
371 | ntype = TYPE_REFERENCE_TYPE (type); | |
372 | ||
c5aa993b | 373 | if (ntype) |
c906108c | 374 | { |
c5aa993b | 375 | if (typeptr == 0) |
7ba81444 MS |
376 | return ntype; /* Don't care about alloc, |
377 | and have new type. */ | |
c906108c | 378 | else if (*typeptr == 0) |
c5aa993b | 379 | { |
7ba81444 | 380 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 381 | return ntype; |
c5aa993b | 382 | } |
c906108c SS |
383 | } |
384 | ||
385 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
386 | { | |
e9bb382b | 387 | ntype = alloc_type_copy (type); |
c906108c SS |
388 | if (typeptr) |
389 | *typeptr = ntype; | |
390 | } | |
7ba81444 | 391 | else /* We have storage, but need to reset it. */ |
c906108c SS |
392 | { |
393 | ntype = *typeptr; | |
1e98b326 | 394 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 395 | smash_type (ntype); |
1e98b326 | 396 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
397 | } |
398 | ||
399 | TYPE_TARGET_TYPE (ntype) = type; | |
400 | TYPE_REFERENCE_TYPE (type) = ntype; | |
401 | ||
7ba81444 MS |
402 | /* FIXME! Assume the machine has only one representation for |
403 | references, and that it matches the (only) representation for | |
404 | pointers! */ | |
c906108c | 405 | |
50810684 UW |
406 | TYPE_LENGTH (ntype) = |
407 | gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c | 408 | TYPE_CODE (ntype) = TYPE_CODE_REF; |
c5aa993b | 409 | |
c906108c SS |
410 | if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */ |
411 | TYPE_REFERENCE_TYPE (type) = ntype; | |
412 | ||
1e98b326 JB |
413 | /* Update the length of all the other variants of this type. */ |
414 | chain = TYPE_CHAIN (ntype); | |
415 | while (chain != ntype) | |
416 | { | |
417 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
418 | chain = TYPE_CHAIN (chain); | |
419 | } | |
420 | ||
c906108c SS |
421 | return ntype; |
422 | } | |
423 | ||
7ba81444 MS |
424 | /* Same as above, but caller doesn't care about memory allocation |
425 | details. */ | |
c906108c SS |
426 | |
427 | struct type * | |
fba45db2 | 428 | lookup_reference_type (struct type *type) |
c906108c | 429 | { |
c5aa993b | 430 | return make_reference_type (type, (struct type **) 0); |
c906108c SS |
431 | } |
432 | ||
7ba81444 MS |
433 | /* Lookup a function type that returns type TYPE. TYPEPTR, if |
434 | nonzero, points to a pointer to memory where the function type | |
435 | should be stored. If *TYPEPTR is zero, update it to point to the | |
0c8b41f1 | 436 | function type we return. We allocate new memory if needed. */ |
c906108c SS |
437 | |
438 | struct type * | |
0c8b41f1 | 439 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 440 | { |
52f0bd74 | 441 | struct type *ntype; /* New type */ |
c906108c SS |
442 | |
443 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
444 | { | |
e9bb382b | 445 | ntype = alloc_type_copy (type); |
c906108c SS |
446 | if (typeptr) |
447 | *typeptr = ntype; | |
448 | } | |
7ba81444 | 449 | else /* We have storage, but need to reset it. */ |
c906108c SS |
450 | { |
451 | ntype = *typeptr; | |
2fdde8f8 | 452 | smash_type (ntype); |
c906108c SS |
453 | } |
454 | ||
455 | TYPE_TARGET_TYPE (ntype) = type; | |
456 | ||
457 | TYPE_LENGTH (ntype) = 1; | |
458 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
c5aa993b | 459 | |
b6cdc2c1 JK |
460 | INIT_FUNC_SPECIFIC (ntype); |
461 | ||
c906108c SS |
462 | return ntype; |
463 | } | |
464 | ||
c906108c SS |
465 | /* Given a type TYPE, return a type of functions that return that type. |
466 | May need to construct such a type if this is the first use. */ | |
467 | ||
468 | struct type * | |
fba45db2 | 469 | lookup_function_type (struct type *type) |
c906108c | 470 | { |
0c8b41f1 | 471 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
472 | } |
473 | ||
71918a86 | 474 | /* Given a type TYPE and argument types, return the appropriate |
a6fb9c08 TT |
475 | function type. If the final type in PARAM_TYPES is NULL, make a |
476 | varargs function. */ | |
71918a86 TT |
477 | |
478 | struct type * | |
479 | lookup_function_type_with_arguments (struct type *type, | |
480 | int nparams, | |
481 | struct type **param_types) | |
482 | { | |
483 | struct type *fn = make_function_type (type, (struct type **) 0); | |
484 | int i; | |
485 | ||
e314d629 | 486 | if (nparams > 0) |
a6fb9c08 | 487 | { |
e314d629 TT |
488 | if (param_types[nparams - 1] == NULL) |
489 | { | |
490 | --nparams; | |
491 | TYPE_VARARGS (fn) = 1; | |
492 | } | |
493 | else if (TYPE_CODE (check_typedef (param_types[nparams - 1])) | |
494 | == TYPE_CODE_VOID) | |
495 | { | |
496 | --nparams; | |
497 | /* Caller should have ensured this. */ | |
498 | gdb_assert (nparams == 0); | |
499 | TYPE_PROTOTYPED (fn) = 1; | |
500 | } | |
a6fb9c08 TT |
501 | } |
502 | ||
71918a86 TT |
503 | TYPE_NFIELDS (fn) = nparams; |
504 | TYPE_FIELDS (fn) = TYPE_ZALLOC (fn, nparams * sizeof (struct field)); | |
505 | for (i = 0; i < nparams; ++i) | |
506 | TYPE_FIELD_TYPE (fn, i) = param_types[i]; | |
507 | ||
508 | return fn; | |
509 | } | |
510 | ||
47663de5 MS |
511 | /* Identify address space identifier by name -- |
512 | return the integer flag defined in gdbtypes.h. */ | |
5212577a DE |
513 | |
514 | int | |
50810684 | 515 | address_space_name_to_int (struct gdbarch *gdbarch, char *space_identifier) |
47663de5 | 516 | { |
8b2dbe47 | 517 | int type_flags; |
d8734c88 | 518 | |
7ba81444 | 519 | /* Check for known address space delimiters. */ |
47663de5 | 520 | if (!strcmp (space_identifier, "code")) |
876cecd0 | 521 | return TYPE_INSTANCE_FLAG_CODE_SPACE; |
47663de5 | 522 | else if (!strcmp (space_identifier, "data")) |
876cecd0 | 523 | return TYPE_INSTANCE_FLAG_DATA_SPACE; |
5f11f355 AC |
524 | else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
525 | && gdbarch_address_class_name_to_type_flags (gdbarch, | |
526 | space_identifier, | |
527 | &type_flags)) | |
8b2dbe47 | 528 | return type_flags; |
47663de5 | 529 | else |
8a3fe4f8 | 530 | error (_("Unknown address space specifier: \"%s\""), space_identifier); |
47663de5 MS |
531 | } |
532 | ||
533 | /* Identify address space identifier by integer flag as defined in | |
7ba81444 | 534 | gdbtypes.h -- return the string version of the adress space name. */ |
47663de5 | 535 | |
321432c0 | 536 | const char * |
50810684 | 537 | address_space_int_to_name (struct gdbarch *gdbarch, int space_flag) |
47663de5 | 538 | { |
876cecd0 | 539 | if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE) |
47663de5 | 540 | return "code"; |
876cecd0 | 541 | else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE) |
47663de5 | 542 | return "data"; |
876cecd0 | 543 | else if ((space_flag & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) |
5f11f355 AC |
544 | && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
545 | return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); | |
47663de5 MS |
546 | else |
547 | return NULL; | |
548 | } | |
549 | ||
2fdde8f8 | 550 | /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
ad766c0a JB |
551 | |
552 | If STORAGE is non-NULL, create the new type instance there. | |
553 | STORAGE must be in the same obstack as TYPE. */ | |
47663de5 | 554 | |
b9362cc7 | 555 | static struct type * |
2fdde8f8 DJ |
556 | make_qualified_type (struct type *type, int new_flags, |
557 | struct type *storage) | |
47663de5 MS |
558 | { |
559 | struct type *ntype; | |
560 | ||
561 | ntype = type; | |
5f61c20e JK |
562 | do |
563 | { | |
564 | if (TYPE_INSTANCE_FLAGS (ntype) == new_flags) | |
565 | return ntype; | |
566 | ntype = TYPE_CHAIN (ntype); | |
567 | } | |
568 | while (ntype != type); | |
47663de5 | 569 | |
2fdde8f8 DJ |
570 | /* Create a new type instance. */ |
571 | if (storage == NULL) | |
572 | ntype = alloc_type_instance (type); | |
573 | else | |
574 | { | |
7ba81444 MS |
575 | /* If STORAGE was provided, it had better be in the same objfile |
576 | as TYPE. Otherwise, we can't link it into TYPE's cv chain: | |
577 | if one objfile is freed and the other kept, we'd have | |
578 | dangling pointers. */ | |
ad766c0a JB |
579 | gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage)); |
580 | ||
2fdde8f8 DJ |
581 | ntype = storage; |
582 | TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); | |
583 | TYPE_CHAIN (ntype) = ntype; | |
584 | } | |
47663de5 MS |
585 | |
586 | /* Pointers or references to the original type are not relevant to | |
2fdde8f8 | 587 | the new type. */ |
47663de5 MS |
588 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
589 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
47663de5 | 590 | |
2fdde8f8 DJ |
591 | /* Chain the new qualified type to the old type. */ |
592 | TYPE_CHAIN (ntype) = TYPE_CHAIN (type); | |
593 | TYPE_CHAIN (type) = ntype; | |
594 | ||
595 | /* Now set the instance flags and return the new type. */ | |
596 | TYPE_INSTANCE_FLAGS (ntype) = new_flags; | |
47663de5 | 597 | |
ab5d3da6 KB |
598 | /* Set length of new type to that of the original type. */ |
599 | TYPE_LENGTH (ntype) = TYPE_LENGTH (type); | |
600 | ||
47663de5 MS |
601 | return ntype; |
602 | } | |
603 | ||
2fdde8f8 DJ |
604 | /* Make an address-space-delimited variant of a type -- a type that |
605 | is identical to the one supplied except that it has an address | |
606 | space attribute attached to it (such as "code" or "data"). | |
607 | ||
7ba81444 MS |
608 | The space attributes "code" and "data" are for Harvard |
609 | architectures. The address space attributes are for architectures | |
610 | which have alternately sized pointers or pointers with alternate | |
611 | representations. */ | |
2fdde8f8 DJ |
612 | |
613 | struct type * | |
614 | make_type_with_address_space (struct type *type, int space_flag) | |
615 | { | |
2fdde8f8 | 616 | int new_flags = ((TYPE_INSTANCE_FLAGS (type) |
876cecd0 TT |
617 | & ~(TYPE_INSTANCE_FLAG_CODE_SPACE |
618 | | TYPE_INSTANCE_FLAG_DATA_SPACE | |
619 | | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)) | |
2fdde8f8 DJ |
620 | | space_flag); |
621 | ||
622 | return make_qualified_type (type, new_flags, NULL); | |
623 | } | |
c906108c SS |
624 | |
625 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
626 | one supplied except that it may have const or volatile attributes | |
627 | CNST is a flag for setting the const attribute | |
628 | VOLTL is a flag for setting the volatile attribute | |
629 | TYPE is the base type whose variant we are creating. | |
c906108c | 630 | |
ad766c0a JB |
631 | If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to |
632 | storage to hold the new qualified type; *TYPEPTR and TYPE must be | |
633 | in the same objfile. Otherwise, allocate fresh memory for the new | |
634 | type whereever TYPE lives. If TYPEPTR is non-zero, set it to the | |
635 | new type we construct. */ | |
5212577a | 636 | |
c906108c | 637 | struct type * |
7ba81444 MS |
638 | make_cv_type (int cnst, int voltl, |
639 | struct type *type, | |
640 | struct type **typeptr) | |
c906108c | 641 | { |
52f0bd74 | 642 | struct type *ntype; /* New type */ |
c906108c | 643 | |
2fdde8f8 | 644 | int new_flags = (TYPE_INSTANCE_FLAGS (type) |
308d96ed MS |
645 | & ~(TYPE_INSTANCE_FLAG_CONST |
646 | | TYPE_INSTANCE_FLAG_VOLATILE)); | |
c906108c | 647 | |
c906108c | 648 | if (cnst) |
876cecd0 | 649 | new_flags |= TYPE_INSTANCE_FLAG_CONST; |
c906108c SS |
650 | |
651 | if (voltl) | |
876cecd0 | 652 | new_flags |= TYPE_INSTANCE_FLAG_VOLATILE; |
a02fd225 | 653 | |
2fdde8f8 | 654 | if (typeptr && *typeptr != NULL) |
a02fd225 | 655 | { |
ad766c0a JB |
656 | /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
657 | a C-V variant chain that threads across objfiles: if one | |
658 | objfile gets freed, then the other has a broken C-V chain. | |
659 | ||
660 | This code used to try to copy over the main type from TYPE to | |
661 | *TYPEPTR if they were in different objfiles, but that's | |
662 | wrong, too: TYPE may have a field list or member function | |
663 | lists, which refer to types of their own, etc. etc. The | |
664 | whole shebang would need to be copied over recursively; you | |
665 | can't have inter-objfile pointers. The only thing to do is | |
666 | to leave stub types as stub types, and look them up afresh by | |
667 | name each time you encounter them. */ | |
668 | gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type)); | |
2fdde8f8 DJ |
669 | } |
670 | ||
7ba81444 MS |
671 | ntype = make_qualified_type (type, new_flags, |
672 | typeptr ? *typeptr : NULL); | |
c906108c | 673 | |
2fdde8f8 DJ |
674 | if (typeptr != NULL) |
675 | *typeptr = ntype; | |
a02fd225 | 676 | |
2fdde8f8 | 677 | return ntype; |
a02fd225 | 678 | } |
c906108c | 679 | |
06d66ee9 TT |
680 | /* Make a 'restrict'-qualified version of TYPE. */ |
681 | ||
682 | struct type * | |
683 | make_restrict_type (struct type *type) | |
684 | { | |
685 | return make_qualified_type (type, | |
686 | (TYPE_INSTANCE_FLAGS (type) | |
687 | | TYPE_INSTANCE_FLAG_RESTRICT), | |
688 | NULL); | |
689 | } | |
690 | ||
2fdde8f8 DJ |
691 | /* Replace the contents of ntype with the type *type. This changes the |
692 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
693 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 694 | |
cda6c68a JB |
695 | In order to build recursive types, it's inevitable that we'll need |
696 | to update types in place --- but this sort of indiscriminate | |
697 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
698 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
699 | clear if more steps are needed. */ | |
5212577a | 700 | |
dd6bda65 DJ |
701 | void |
702 | replace_type (struct type *ntype, struct type *type) | |
703 | { | |
ab5d3da6 | 704 | struct type *chain; |
dd6bda65 | 705 | |
ad766c0a JB |
706 | /* These two types had better be in the same objfile. Otherwise, |
707 | the assignment of one type's main type structure to the other | |
708 | will produce a type with references to objects (names; field | |
709 | lists; etc.) allocated on an objfile other than its own. */ | |
710 | gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (ntype)); | |
711 | ||
2fdde8f8 | 712 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 713 | |
7ba81444 MS |
714 | /* The type length is not a part of the main type. Update it for |
715 | each type on the variant chain. */ | |
ab5d3da6 | 716 | chain = ntype; |
5f61c20e JK |
717 | do |
718 | { | |
719 | /* Assert that this element of the chain has no address-class bits | |
720 | set in its flags. Such type variants might have type lengths | |
721 | which are supposed to be different from the non-address-class | |
722 | variants. This assertion shouldn't ever be triggered because | |
723 | symbol readers which do construct address-class variants don't | |
724 | call replace_type(). */ | |
725 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
726 | ||
727 | TYPE_LENGTH (chain) = TYPE_LENGTH (type); | |
728 | chain = TYPE_CHAIN (chain); | |
729 | } | |
730 | while (ntype != chain); | |
ab5d3da6 | 731 | |
2fdde8f8 DJ |
732 | /* Assert that the two types have equivalent instance qualifiers. |
733 | This should be true for at least all of our debug readers. */ | |
734 | gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type)); | |
dd6bda65 DJ |
735 | } |
736 | ||
c906108c SS |
737 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
738 | May need to construct such a type if this is the first use. | |
739 | The TYPE is the type of the member. The DOMAIN is the type | |
740 | of the aggregate that the member belongs to. */ | |
741 | ||
742 | struct type * | |
0d5de010 | 743 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 744 | { |
52f0bd74 | 745 | struct type *mtype; |
c906108c | 746 | |
e9bb382b | 747 | mtype = alloc_type_copy (type); |
0d5de010 | 748 | smash_to_memberptr_type (mtype, domain, type); |
c16abbde | 749 | return mtype; |
c906108c SS |
750 | } |
751 | ||
0d5de010 DJ |
752 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
753 | ||
754 | struct type * | |
755 | lookup_methodptr_type (struct type *to_type) | |
756 | { | |
757 | struct type *mtype; | |
758 | ||
e9bb382b | 759 | mtype = alloc_type_copy (to_type); |
0b92b5bb | 760 | smash_to_methodptr_type (mtype, to_type); |
0d5de010 DJ |
761 | return mtype; |
762 | } | |
763 | ||
7ba81444 MS |
764 | /* Allocate a stub method whose return type is TYPE. This apparently |
765 | happens for speed of symbol reading, since parsing out the | |
766 | arguments to the method is cpu-intensive, the way we are doing it. | |
767 | So, we will fill in arguments later. This always returns a fresh | |
768 | type. */ | |
c906108c SS |
769 | |
770 | struct type * | |
fba45db2 | 771 | allocate_stub_method (struct type *type) |
c906108c SS |
772 | { |
773 | struct type *mtype; | |
774 | ||
e9bb382b UW |
775 | mtype = alloc_type_copy (type); |
776 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; | |
777 | TYPE_LENGTH (mtype) = 1; | |
778 | TYPE_STUB (mtype) = 1; | |
c906108c SS |
779 | TYPE_TARGET_TYPE (mtype) = type; |
780 | /* _DOMAIN_TYPE (mtype) = unknown yet */ | |
c16abbde | 781 | return mtype; |
c906108c SS |
782 | } |
783 | ||
7ba81444 MS |
784 | /* Create a range type using either a blank type supplied in |
785 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
786 | INDEX_TYPE. | |
c906108c | 787 | |
7ba81444 MS |
788 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND |
789 | to HIGH_BOUND, inclusive. | |
c906108c | 790 | |
7ba81444 MS |
791 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
792 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
c906108c SS |
793 | |
794 | struct type * | |
fba45db2 | 795 | create_range_type (struct type *result_type, struct type *index_type, |
43bbcdc2 | 796 | LONGEST low_bound, LONGEST high_bound) |
c906108c SS |
797 | { |
798 | if (result_type == NULL) | |
e9bb382b | 799 | result_type = alloc_type_copy (index_type); |
c906108c SS |
800 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; |
801 | TYPE_TARGET_TYPE (result_type) = index_type; | |
74a9bb82 | 802 | if (TYPE_STUB (index_type)) |
876cecd0 | 803 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c SS |
804 | else |
805 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
43bbcdc2 PH |
806 | TYPE_RANGE_DATA (result_type) = (struct range_bounds *) |
807 | TYPE_ZALLOC (result_type, sizeof (struct range_bounds)); | |
262452ec JK |
808 | TYPE_LOW_BOUND (result_type) = low_bound; |
809 | TYPE_HIGH_BOUND (result_type) = high_bound; | |
c906108c | 810 | |
c5aa993b | 811 | if (low_bound >= 0) |
876cecd0 | 812 | TYPE_UNSIGNED (result_type) = 1; |
c906108c | 813 | |
262452ec | 814 | return result_type; |
c906108c SS |
815 | } |
816 | ||
7ba81444 MS |
817 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
818 | TYPE. Return 1 if type is a range type, 0 if it is discrete (and | |
819 | bounds will fit in LONGEST), or -1 otherwise. */ | |
c906108c SS |
820 | |
821 | int | |
fba45db2 | 822 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c SS |
823 | { |
824 | CHECK_TYPEDEF (type); | |
825 | switch (TYPE_CODE (type)) | |
826 | { | |
827 | case TYPE_CODE_RANGE: | |
828 | *lowp = TYPE_LOW_BOUND (type); | |
829 | *highp = TYPE_HIGH_BOUND (type); | |
830 | return 1; | |
831 | case TYPE_CODE_ENUM: | |
832 | if (TYPE_NFIELDS (type) > 0) | |
833 | { | |
834 | /* The enums may not be sorted by value, so search all | |
0963b4bd | 835 | entries. */ |
c906108c SS |
836 | int i; |
837 | ||
14e75d8e | 838 | *lowp = *highp = TYPE_FIELD_ENUMVAL (type, 0); |
c906108c SS |
839 | for (i = 0; i < TYPE_NFIELDS (type); i++) |
840 | { | |
14e75d8e JK |
841 | if (TYPE_FIELD_ENUMVAL (type, i) < *lowp) |
842 | *lowp = TYPE_FIELD_ENUMVAL (type, i); | |
843 | if (TYPE_FIELD_ENUMVAL (type, i) > *highp) | |
844 | *highp = TYPE_FIELD_ENUMVAL (type, i); | |
c906108c SS |
845 | } |
846 | ||
7ba81444 | 847 | /* Set unsigned indicator if warranted. */ |
c5aa993b | 848 | if (*lowp >= 0) |
c906108c | 849 | { |
876cecd0 | 850 | TYPE_UNSIGNED (type) = 1; |
c906108c SS |
851 | } |
852 | } | |
853 | else | |
854 | { | |
855 | *lowp = 0; | |
856 | *highp = -1; | |
857 | } | |
858 | return 0; | |
859 | case TYPE_CODE_BOOL: | |
860 | *lowp = 0; | |
861 | *highp = 1; | |
862 | return 0; | |
863 | case TYPE_CODE_INT: | |
c5aa993b | 864 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
865 | return -1; |
866 | if (!TYPE_UNSIGNED (type)) | |
867 | { | |
c5aa993b | 868 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
869 | *highp = -*lowp - 1; |
870 | return 0; | |
871 | } | |
7ba81444 | 872 | /* ... fall through for unsigned ints ... */ |
c906108c SS |
873 | case TYPE_CODE_CHAR: |
874 | *lowp = 0; | |
875 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 | 876 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
7ba81444 | 877 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
c906108c SS |
878 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
879 | *highp = (*highp - 1) | *highp; | |
880 | return 0; | |
881 | default: | |
882 | return -1; | |
883 | } | |
884 | } | |
885 | ||
dbc98a8b KW |
886 | /* Assuming TYPE is a simple, non-empty array type, compute its upper |
887 | and lower bound. Save the low bound into LOW_BOUND if not NULL. | |
888 | Save the high bound into HIGH_BOUND if not NULL. | |
889 | ||
0963b4bd | 890 | Return 1 if the operation was successful. Return zero otherwise, |
dbc98a8b KW |
891 | in which case the values of LOW_BOUND and HIGH_BOUNDS are unmodified. |
892 | ||
893 | We now simply use get_discrete_bounds call to get the values | |
894 | of the low and high bounds. | |
895 | get_discrete_bounds can return three values: | |
896 | 1, meaning that index is a range, | |
897 | 0, meaning that index is a discrete type, | |
898 | or -1 for failure. */ | |
899 | ||
900 | int | |
901 | get_array_bounds (struct type *type, LONGEST *low_bound, LONGEST *high_bound) | |
902 | { | |
903 | struct type *index = TYPE_INDEX_TYPE (type); | |
904 | LONGEST low = 0; | |
905 | LONGEST high = 0; | |
906 | int res; | |
907 | ||
908 | if (index == NULL) | |
909 | return 0; | |
910 | ||
911 | res = get_discrete_bounds (index, &low, &high); | |
912 | if (res == -1) | |
913 | return 0; | |
914 | ||
915 | /* Check if the array bounds are undefined. */ | |
916 | if (res == 1 | |
917 | && ((low_bound && TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED (type)) | |
918 | || (high_bound && TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type)))) | |
919 | return 0; | |
920 | ||
921 | if (low_bound) | |
922 | *low_bound = low; | |
923 | ||
924 | if (high_bound) | |
925 | *high_bound = high; | |
926 | ||
927 | return 1; | |
928 | } | |
929 | ||
7ba81444 MS |
930 | /* Create an array type using either a blank type supplied in |
931 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
932 | RANGE_TYPE. | |
c906108c SS |
933 | |
934 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
935 | RANGE_TYPE. | |
936 | ||
7ba81444 MS |
937 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
938 | sure it is TYPE_CODE_UNDEF before we bash it into an array | |
939 | type? */ | |
c906108c SS |
940 | |
941 | struct type * | |
7ba81444 MS |
942 | create_array_type (struct type *result_type, |
943 | struct type *element_type, | |
fba45db2 | 944 | struct type *range_type) |
c906108c SS |
945 | { |
946 | LONGEST low_bound, high_bound; | |
947 | ||
948 | if (result_type == NULL) | |
e9bb382b UW |
949 | result_type = alloc_type_copy (range_type); |
950 | ||
c906108c SS |
951 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
952 | TYPE_TARGET_TYPE (result_type) = element_type; | |
953 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
954 | low_bound = high_bound = 0; | |
955 | CHECK_TYPEDEF (element_type); | |
ab0d6e0d JB |
956 | /* Be careful when setting the array length. Ada arrays can be |
957 | empty arrays with the high_bound being smaller than the low_bound. | |
958 | In such cases, the array length should be zero. */ | |
959 | if (high_bound < low_bound) | |
960 | TYPE_LENGTH (result_type) = 0; | |
961 | else | |
962 | TYPE_LENGTH (result_type) = | |
963 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
c906108c SS |
964 | TYPE_NFIELDS (result_type) = 1; |
965 | TYPE_FIELDS (result_type) = | |
1deafd4e | 966 | (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); |
262452ec | 967 | TYPE_INDEX_TYPE (result_type) = range_type; |
c906108c SS |
968 | TYPE_VPTR_FIELDNO (result_type) = -1; |
969 | ||
0963b4bd | 970 | /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays. */ |
c906108c | 971 | if (TYPE_LENGTH (result_type) == 0) |
876cecd0 | 972 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c | 973 | |
c16abbde | 974 | return result_type; |
c906108c SS |
975 | } |
976 | ||
e3506a9f UW |
977 | struct type * |
978 | lookup_array_range_type (struct type *element_type, | |
63375b74 | 979 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f | 980 | { |
50810684 | 981 | struct gdbarch *gdbarch = get_type_arch (element_type); |
e3506a9f UW |
982 | struct type *index_type = builtin_type (gdbarch)->builtin_int; |
983 | struct type *range_type | |
984 | = create_range_type (NULL, index_type, low_bound, high_bound); | |
d8734c88 | 985 | |
e3506a9f UW |
986 | return create_array_type (NULL, element_type, range_type); |
987 | } | |
988 | ||
7ba81444 MS |
989 | /* Create a string type using either a blank type supplied in |
990 | RESULT_TYPE, or creating a new type. String types are similar | |
991 | enough to array of char types that we can use create_array_type to | |
992 | build the basic type and then bash it into a string type. | |
c906108c SS |
993 | |
994 | For fixed length strings, the range type contains 0 as the lower | |
995 | bound and the length of the string minus one as the upper bound. | |
996 | ||
7ba81444 MS |
997 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
998 | sure it is TYPE_CODE_UNDEF before we bash it into a string | |
999 | type? */ | |
c906108c SS |
1000 | |
1001 | struct type * | |
3b7538c0 UW |
1002 | create_string_type (struct type *result_type, |
1003 | struct type *string_char_type, | |
7ba81444 | 1004 | struct type *range_type) |
c906108c SS |
1005 | { |
1006 | result_type = create_array_type (result_type, | |
f290d38e | 1007 | string_char_type, |
c906108c SS |
1008 | range_type); |
1009 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
c16abbde | 1010 | return result_type; |
c906108c SS |
1011 | } |
1012 | ||
e3506a9f UW |
1013 | struct type * |
1014 | lookup_string_range_type (struct type *string_char_type, | |
63375b74 | 1015 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f UW |
1016 | { |
1017 | struct type *result_type; | |
d8734c88 | 1018 | |
e3506a9f UW |
1019 | result_type = lookup_array_range_type (string_char_type, |
1020 | low_bound, high_bound); | |
1021 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
1022 | return result_type; | |
1023 | } | |
1024 | ||
c906108c | 1025 | struct type * |
fba45db2 | 1026 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c | 1027 | { |
c906108c | 1028 | if (result_type == NULL) |
e9bb382b UW |
1029 | result_type = alloc_type_copy (domain_type); |
1030 | ||
c906108c SS |
1031 | TYPE_CODE (result_type) = TYPE_CODE_SET; |
1032 | TYPE_NFIELDS (result_type) = 1; | |
1deafd4e | 1033 | TYPE_FIELDS (result_type) = TYPE_ZALLOC (result_type, sizeof (struct field)); |
c906108c | 1034 | |
74a9bb82 | 1035 | if (!TYPE_STUB (domain_type)) |
c906108c | 1036 | { |
f9780d5b | 1037 | LONGEST low_bound, high_bound, bit_length; |
d8734c88 | 1038 | |
c906108c SS |
1039 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
1040 | low_bound = high_bound = 0; | |
1041 | bit_length = high_bound - low_bound + 1; | |
1042 | TYPE_LENGTH (result_type) | |
1043 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
f9780d5b | 1044 | if (low_bound >= 0) |
876cecd0 | 1045 | TYPE_UNSIGNED (result_type) = 1; |
c906108c SS |
1046 | } |
1047 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
1048 | ||
c16abbde | 1049 | return result_type; |
c906108c SS |
1050 | } |
1051 | ||
ea37ba09 DJ |
1052 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
1053 | and any array types nested inside it. */ | |
1054 | ||
1055 | void | |
1056 | make_vector_type (struct type *array_type) | |
1057 | { | |
1058 | struct type *inner_array, *elt_type; | |
1059 | int flags; | |
1060 | ||
1061 | /* Find the innermost array type, in case the array is | |
1062 | multi-dimensional. */ | |
1063 | inner_array = array_type; | |
1064 | while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY) | |
1065 | inner_array = TYPE_TARGET_TYPE (inner_array); | |
1066 | ||
1067 | elt_type = TYPE_TARGET_TYPE (inner_array); | |
1068 | if (TYPE_CODE (elt_type) == TYPE_CODE_INT) | |
1069 | { | |
2844d6b5 | 1070 | flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_INSTANCE_FLAG_NOTTEXT; |
ea37ba09 DJ |
1071 | elt_type = make_qualified_type (elt_type, flags, NULL); |
1072 | TYPE_TARGET_TYPE (inner_array) = elt_type; | |
1073 | } | |
1074 | ||
876cecd0 | 1075 | TYPE_VECTOR (array_type) = 1; |
ea37ba09 DJ |
1076 | } |
1077 | ||
794ac428 | 1078 | struct type * |
ac3aafc7 EZ |
1079 | init_vector_type (struct type *elt_type, int n) |
1080 | { | |
1081 | struct type *array_type; | |
d8734c88 | 1082 | |
e3506a9f | 1083 | array_type = lookup_array_range_type (elt_type, 0, n - 1); |
ea37ba09 | 1084 | make_vector_type (array_type); |
ac3aafc7 EZ |
1085 | return array_type; |
1086 | } | |
1087 | ||
0d5de010 DJ |
1088 | /* Smash TYPE to be a type of pointers to members of DOMAIN with type |
1089 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a | |
1090 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
1091 | TYPE doesn't include the offset (that's the value of the MEMBER | |
1092 | itself), but does include the structure type into which it points | |
1093 | (for some reason). | |
c906108c | 1094 | |
7ba81444 MS |
1095 | When "smashing" the type, we preserve the objfile that the old type |
1096 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1097 | allocated. */ |
1098 | ||
1099 | void | |
0d5de010 DJ |
1100 | smash_to_memberptr_type (struct type *type, struct type *domain, |
1101 | struct type *to_type) | |
c906108c | 1102 | { |
2fdde8f8 | 1103 | smash_type (type); |
c906108c SS |
1104 | TYPE_TARGET_TYPE (type) = to_type; |
1105 | TYPE_DOMAIN_TYPE (type) = domain; | |
0d5de010 DJ |
1106 | /* Assume that a data member pointer is the same size as a normal |
1107 | pointer. */ | |
50810684 UW |
1108 | TYPE_LENGTH (type) |
1109 | = gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT; | |
0d5de010 | 1110 | TYPE_CODE (type) = TYPE_CODE_MEMBERPTR; |
c906108c SS |
1111 | } |
1112 | ||
0b92b5bb TT |
1113 | /* Smash TYPE to be a type of pointer to methods type TO_TYPE. |
1114 | ||
1115 | When "smashing" the type, we preserve the objfile that the old type | |
1116 | pointed to, since we aren't changing where the type is actually | |
1117 | allocated. */ | |
1118 | ||
1119 | void | |
1120 | smash_to_methodptr_type (struct type *type, struct type *to_type) | |
1121 | { | |
1122 | smash_type (type); | |
1123 | TYPE_TARGET_TYPE (type) = to_type; | |
1124 | TYPE_DOMAIN_TYPE (type) = TYPE_DOMAIN_TYPE (to_type); | |
1125 | TYPE_LENGTH (type) = cplus_method_ptr_size (to_type); | |
1126 | TYPE_CODE (type) = TYPE_CODE_METHODPTR; | |
1127 | } | |
1128 | ||
c906108c SS |
1129 | /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE. |
1130 | METHOD just means `function that gets an extra "this" argument'. | |
1131 | ||
7ba81444 MS |
1132 | When "smashing" the type, we preserve the objfile that the old type |
1133 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1134 | allocated. */ |
1135 | ||
1136 | void | |
fba45db2 | 1137 | smash_to_method_type (struct type *type, struct type *domain, |
ad2f7632 DJ |
1138 | struct type *to_type, struct field *args, |
1139 | int nargs, int varargs) | |
c906108c | 1140 | { |
2fdde8f8 | 1141 | smash_type (type); |
c906108c SS |
1142 | TYPE_TARGET_TYPE (type) = to_type; |
1143 | TYPE_DOMAIN_TYPE (type) = domain; | |
ad2f7632 DJ |
1144 | TYPE_FIELDS (type) = args; |
1145 | TYPE_NFIELDS (type) = nargs; | |
1146 | if (varargs) | |
876cecd0 | 1147 | TYPE_VARARGS (type) = 1; |
c906108c SS |
1148 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
1149 | TYPE_CODE (type) = TYPE_CODE_METHOD; | |
1150 | } | |
1151 | ||
1152 | /* Return a typename for a struct/union/enum type without "struct ", | |
1153 | "union ", or "enum ". If the type has a NULL name, return NULL. */ | |
1154 | ||
0d5cff50 | 1155 | const char * |
aa1ee363 | 1156 | type_name_no_tag (const struct type *type) |
c906108c SS |
1157 | { |
1158 | if (TYPE_TAG_NAME (type) != NULL) | |
1159 | return TYPE_TAG_NAME (type); | |
1160 | ||
7ba81444 MS |
1161 | /* Is there code which expects this to return the name if there is |
1162 | no tag name? My guess is that this is mainly used for C++ in | |
1163 | cases where the two will always be the same. */ | |
c906108c SS |
1164 | return TYPE_NAME (type); |
1165 | } | |
1166 | ||
d8228535 JK |
1167 | /* A wrapper of type_name_no_tag which calls error if the type is anonymous. |
1168 | Since GCC PR debug/47510 DWARF provides associated information to detect the | |
1169 | anonymous class linkage name from its typedef. | |
1170 | ||
1171 | Parameter TYPE should not yet have CHECK_TYPEDEF applied, this function will | |
1172 | apply it itself. */ | |
1173 | ||
1174 | const char * | |
1175 | type_name_no_tag_or_error (struct type *type) | |
1176 | { | |
1177 | struct type *saved_type = type; | |
1178 | const char *name; | |
1179 | struct objfile *objfile; | |
1180 | ||
1181 | CHECK_TYPEDEF (type); | |
1182 | ||
1183 | name = type_name_no_tag (type); | |
1184 | if (name != NULL) | |
1185 | return name; | |
1186 | ||
1187 | name = type_name_no_tag (saved_type); | |
1188 | objfile = TYPE_OBJFILE (saved_type); | |
1189 | error (_("Invalid anonymous type %s [in module %s], GCC PR debug/47510 bug?"), | |
1190 | name ? name : "<anonymous>", objfile ? objfile->name : "<arch>"); | |
1191 | } | |
1192 | ||
7ba81444 MS |
1193 | /* Lookup a typedef or primitive type named NAME, visible in lexical |
1194 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
1195 | suitably defined. */ | |
c906108c SS |
1196 | |
1197 | struct type * | |
e6c014f2 | 1198 | lookup_typename (const struct language_defn *language, |
ddd49eee | 1199 | struct gdbarch *gdbarch, const char *name, |
34eaf542 | 1200 | const struct block *block, int noerr) |
c906108c | 1201 | { |
52f0bd74 | 1202 | struct symbol *sym; |
659c9f3a | 1203 | struct type *type; |
c906108c | 1204 | |
774b6a14 | 1205 | sym = lookup_symbol (name, block, VAR_DOMAIN, 0); |
c51fe631 DE |
1206 | if (sym != NULL && SYMBOL_CLASS (sym) == LOC_TYPEDEF) |
1207 | return SYMBOL_TYPE (sym); | |
1208 | ||
659c9f3a DE |
1209 | type = language_lookup_primitive_type_by_name (language, gdbarch, name); |
1210 | if (type) | |
1211 | return type; | |
c51fe631 DE |
1212 | |
1213 | if (noerr) | |
1214 | return NULL; | |
1215 | error (_("No type named %s."), name); | |
c906108c SS |
1216 | } |
1217 | ||
1218 | struct type * | |
e6c014f2 | 1219 | lookup_unsigned_typename (const struct language_defn *language, |
0d5cff50 | 1220 | struct gdbarch *gdbarch, const char *name) |
c906108c SS |
1221 | { |
1222 | char *uns = alloca (strlen (name) + 10); | |
1223 | ||
1224 | strcpy (uns, "unsigned "); | |
1225 | strcpy (uns + 9, name); | |
e6c014f2 | 1226 | return lookup_typename (language, gdbarch, uns, (struct block *) NULL, 0); |
c906108c SS |
1227 | } |
1228 | ||
1229 | struct type * | |
e6c014f2 | 1230 | lookup_signed_typename (const struct language_defn *language, |
0d5cff50 | 1231 | struct gdbarch *gdbarch, const char *name) |
c906108c SS |
1232 | { |
1233 | struct type *t; | |
1234 | char *uns = alloca (strlen (name) + 8); | |
1235 | ||
1236 | strcpy (uns, "signed "); | |
1237 | strcpy (uns + 7, name); | |
e6c014f2 | 1238 | t = lookup_typename (language, gdbarch, uns, (struct block *) NULL, 1); |
7ba81444 | 1239 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
c906108c SS |
1240 | if (t != NULL) |
1241 | return t; | |
e6c014f2 | 1242 | return lookup_typename (language, gdbarch, name, (struct block *) NULL, 0); |
c906108c SS |
1243 | } |
1244 | ||
1245 | /* Lookup a structure type named "struct NAME", | |
1246 | visible in lexical block BLOCK. */ | |
1247 | ||
1248 | struct type * | |
270140bd | 1249 | lookup_struct (const char *name, const struct block *block) |
c906108c | 1250 | { |
52f0bd74 | 1251 | struct symbol *sym; |
c906108c | 1252 | |
2570f2b7 | 1253 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1254 | |
1255 | if (sym == NULL) | |
1256 | { | |
8a3fe4f8 | 1257 | error (_("No struct type named %s."), name); |
c906108c SS |
1258 | } |
1259 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1260 | { | |
7ba81444 MS |
1261 | error (_("This context has class, union or enum %s, not a struct."), |
1262 | name); | |
c906108c SS |
1263 | } |
1264 | return (SYMBOL_TYPE (sym)); | |
1265 | } | |
1266 | ||
1267 | /* Lookup a union type named "union NAME", | |
1268 | visible in lexical block BLOCK. */ | |
1269 | ||
1270 | struct type * | |
270140bd | 1271 | lookup_union (const char *name, const struct block *block) |
c906108c | 1272 | { |
52f0bd74 | 1273 | struct symbol *sym; |
c5aa993b | 1274 | struct type *t; |
c906108c | 1275 | |
2570f2b7 | 1276 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1277 | |
1278 | if (sym == NULL) | |
8a3fe4f8 | 1279 | error (_("No union type named %s."), name); |
c906108c | 1280 | |
c5aa993b | 1281 | t = SYMBOL_TYPE (sym); |
c906108c SS |
1282 | |
1283 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
c16abbde | 1284 | return t; |
c906108c | 1285 | |
7ba81444 MS |
1286 | /* If we get here, it's not a union. */ |
1287 | error (_("This context has class, struct or enum %s, not a union."), | |
1288 | name); | |
c906108c SS |
1289 | } |
1290 | ||
c906108c SS |
1291 | /* Lookup an enum type named "enum NAME", |
1292 | visible in lexical block BLOCK. */ | |
1293 | ||
1294 | struct type * | |
270140bd | 1295 | lookup_enum (const char *name, const struct block *block) |
c906108c | 1296 | { |
52f0bd74 | 1297 | struct symbol *sym; |
c906108c | 1298 | |
2570f2b7 | 1299 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1300 | if (sym == NULL) |
1301 | { | |
8a3fe4f8 | 1302 | error (_("No enum type named %s."), name); |
c906108c SS |
1303 | } |
1304 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
1305 | { | |
7ba81444 MS |
1306 | error (_("This context has class, struct or union %s, not an enum."), |
1307 | name); | |
c906108c SS |
1308 | } |
1309 | return (SYMBOL_TYPE (sym)); | |
1310 | } | |
1311 | ||
1312 | /* Lookup a template type named "template NAME<TYPE>", | |
1313 | visible in lexical block BLOCK. */ | |
1314 | ||
1315 | struct type * | |
7ba81444 | 1316 | lookup_template_type (char *name, struct type *type, |
270140bd | 1317 | const struct block *block) |
c906108c SS |
1318 | { |
1319 | struct symbol *sym; | |
7ba81444 MS |
1320 | char *nam = (char *) |
1321 | alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4); | |
d8734c88 | 1322 | |
c906108c SS |
1323 | strcpy (nam, name); |
1324 | strcat (nam, "<"); | |
0004e5a2 | 1325 | strcat (nam, TYPE_NAME (type)); |
0963b4bd | 1326 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1327 | |
2570f2b7 | 1328 | sym = lookup_symbol (nam, block, VAR_DOMAIN, 0); |
c906108c SS |
1329 | |
1330 | if (sym == NULL) | |
1331 | { | |
8a3fe4f8 | 1332 | error (_("No template type named %s."), name); |
c906108c SS |
1333 | } |
1334 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1335 | { | |
7ba81444 MS |
1336 | error (_("This context has class, union or enum %s, not a struct."), |
1337 | name); | |
c906108c SS |
1338 | } |
1339 | return (SYMBOL_TYPE (sym)); | |
1340 | } | |
1341 | ||
7ba81444 MS |
1342 | /* Given a type TYPE, lookup the type of the component of type named |
1343 | NAME. | |
c906108c | 1344 | |
7ba81444 MS |
1345 | TYPE can be either a struct or union, or a pointer or reference to |
1346 | a struct or union. If it is a pointer or reference, its target | |
1347 | type is automatically used. Thus '.' and '->' are interchangable, | |
1348 | as specified for the definitions of the expression element types | |
1349 | STRUCTOP_STRUCT and STRUCTOP_PTR. | |
c906108c SS |
1350 | |
1351 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
1352 | If NAME is the name of a baseclass type, return that type. */ | |
1353 | ||
1354 | struct type * | |
fba45db2 | 1355 | lookup_struct_elt_type (struct type *type, char *name, int noerr) |
c906108c SS |
1356 | { |
1357 | int i; | |
c92817ce | 1358 | char *typename; |
c906108c SS |
1359 | |
1360 | for (;;) | |
1361 | { | |
1362 | CHECK_TYPEDEF (type); | |
1363 | if (TYPE_CODE (type) != TYPE_CODE_PTR | |
1364 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1365 | break; | |
1366 | type = TYPE_TARGET_TYPE (type); | |
1367 | } | |
1368 | ||
687d6395 MS |
1369 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
1370 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
c906108c | 1371 | { |
c92817ce TT |
1372 | typename = type_to_string (type); |
1373 | make_cleanup (xfree, typename); | |
1374 | error (_("Type %s is not a structure or union type."), typename); | |
c906108c SS |
1375 | } |
1376 | ||
1377 | #if 0 | |
7ba81444 MS |
1378 | /* FIXME: This change put in by Michael seems incorrect for the case |
1379 | where the structure tag name is the same as the member name. | |
0963b4bd | 1380 | I.e. when doing "ptype bell->bar" for "struct foo { int bar; int |
7ba81444 | 1381 | foo; } bell;" Disabled by fnf. */ |
c906108c SS |
1382 | { |
1383 | char *typename; | |
1384 | ||
1385 | typename = type_name_no_tag (type); | |
762f08a3 | 1386 | if (typename != NULL && strcmp (typename, name) == 0) |
c906108c SS |
1387 | return type; |
1388 | } | |
1389 | #endif | |
1390 | ||
1391 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1392 | { | |
0d5cff50 | 1393 | const char *t_field_name = TYPE_FIELD_NAME (type, i); |
c906108c | 1394 | |
db577aea | 1395 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c SS |
1396 | { |
1397 | return TYPE_FIELD_TYPE (type, i); | |
1398 | } | |
f5a010c0 PM |
1399 | else if (!t_field_name || *t_field_name == '\0') |
1400 | { | |
d8734c88 MS |
1401 | struct type *subtype |
1402 | = lookup_struct_elt_type (TYPE_FIELD_TYPE (type, i), name, 1); | |
1403 | ||
f5a010c0 PM |
1404 | if (subtype != NULL) |
1405 | return subtype; | |
1406 | } | |
c906108c SS |
1407 | } |
1408 | ||
1409 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1410 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1411 | { | |
1412 | struct type *t; | |
1413 | ||
9733fc94 | 1414 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 1); |
c906108c SS |
1415 | if (t != NULL) |
1416 | { | |
1417 | return t; | |
1418 | } | |
1419 | } | |
1420 | ||
1421 | if (noerr) | |
1422 | { | |
1423 | return NULL; | |
1424 | } | |
c5aa993b | 1425 | |
c92817ce TT |
1426 | typename = type_to_string (type); |
1427 | make_cleanup (xfree, typename); | |
1428 | error (_("Type %s has no component named %s."), typename, name); | |
c906108c SS |
1429 | } |
1430 | ||
81fe8080 DE |
1431 | /* Lookup the vptr basetype/fieldno values for TYPE. |
1432 | If found store vptr_basetype in *BASETYPEP if non-NULL, and return | |
1433 | vptr_fieldno. Also, if found and basetype is from the same objfile, | |
1434 | cache the results. | |
1435 | If not found, return -1 and ignore BASETYPEP. | |
1436 | Callers should be aware that in some cases (for example, | |
c906108c | 1437 | the type or one of its baseclasses is a stub type and we are |
d48cc9dd DJ |
1438 | debugging a .o file, or the compiler uses DWARF-2 and is not GCC), |
1439 | this function will not be able to find the | |
7ba81444 | 1440 | virtual function table pointer, and vptr_fieldno will remain -1 and |
81fe8080 | 1441 | vptr_basetype will remain NULL or incomplete. */ |
c906108c | 1442 | |
81fe8080 DE |
1443 | int |
1444 | get_vptr_fieldno (struct type *type, struct type **basetypep) | |
c906108c SS |
1445 | { |
1446 | CHECK_TYPEDEF (type); | |
1447 | ||
1448 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1449 | { | |
1450 | int i; | |
1451 | ||
7ba81444 MS |
1452 | /* We must start at zero in case the first (and only) baseclass |
1453 | is virtual (and hence we cannot share the table pointer). */ | |
c906108c SS |
1454 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1455 | { | |
81fe8080 DE |
1456 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
1457 | int fieldno; | |
1458 | struct type *basetype; | |
1459 | ||
1460 | fieldno = get_vptr_fieldno (baseclass, &basetype); | |
1461 | if (fieldno >= 0) | |
c906108c | 1462 | { |
81fe8080 | 1463 | /* If the type comes from a different objfile we can't cache |
0963b4bd | 1464 | it, it may have a different lifetime. PR 2384 */ |
5ef73790 | 1465 | if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype)) |
81fe8080 DE |
1466 | { |
1467 | TYPE_VPTR_FIELDNO (type) = fieldno; | |
1468 | TYPE_VPTR_BASETYPE (type) = basetype; | |
1469 | } | |
1470 | if (basetypep) | |
1471 | *basetypep = basetype; | |
1472 | return fieldno; | |
c906108c SS |
1473 | } |
1474 | } | |
81fe8080 DE |
1475 | |
1476 | /* Not found. */ | |
1477 | return -1; | |
1478 | } | |
1479 | else | |
1480 | { | |
1481 | if (basetypep) | |
1482 | *basetypep = TYPE_VPTR_BASETYPE (type); | |
1483 | return TYPE_VPTR_FIELDNO (type); | |
c906108c SS |
1484 | } |
1485 | } | |
1486 | ||
44e1a9eb DJ |
1487 | static void |
1488 | stub_noname_complaint (void) | |
1489 | { | |
e2e0b3e5 | 1490 | complaint (&symfile_complaints, _("stub type has NULL name")); |
44e1a9eb DJ |
1491 | } |
1492 | ||
92163a10 JK |
1493 | /* Find the real type of TYPE. This function returns the real type, |
1494 | after removing all layers of typedefs, and completing opaque or stub | |
1495 | types. Completion changes the TYPE argument, but stripping of | |
1496 | typedefs does not. | |
1497 | ||
1498 | Instance flags (e.g. const/volatile) are preserved as typedefs are | |
1499 | stripped. If necessary a new qualified form of the underlying type | |
1500 | is created. | |
1501 | ||
1502 | NOTE: This will return a typedef if TYPE_TARGET_TYPE for the typedef has | |
1503 | not been computed and we're either in the middle of reading symbols, or | |
1504 | there was no name for the typedef in the debug info. | |
1505 | ||
9bc118a5 DE |
1506 | NOTE: Lookup of opaque types can throw errors for invalid symbol files. |
1507 | QUITs in the symbol reading code can also throw. | |
1508 | Thus this function can throw an exception. | |
1509 | ||
92163a10 JK |
1510 | If TYPE is a TYPE_CODE_TYPEDEF, its length is updated to the length of |
1511 | the target type. | |
c906108c SS |
1512 | |
1513 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
0963b4bd | 1514 | we can find a full definition in some other file. If so, copy this |
7ba81444 MS |
1515 | definition, so we can use it in future. There used to be a comment |
1516 | (but not any code) that if we don't find a full definition, we'd | |
1517 | set a flag so we don't spend time in the future checking the same | |
1518 | type. That would be a mistake, though--we might load in more | |
92163a10 | 1519 | symbols which contain a full definition for the type. */ |
c906108c SS |
1520 | |
1521 | struct type * | |
a02fd225 | 1522 | check_typedef (struct type *type) |
c906108c SS |
1523 | { |
1524 | struct type *orig_type = type; | |
92163a10 JK |
1525 | /* While we're removing typedefs, we don't want to lose qualifiers. |
1526 | E.g., const/volatile. */ | |
1527 | int instance_flags = TYPE_INSTANCE_FLAGS (type); | |
a02fd225 | 1528 | |
423c0af8 MS |
1529 | gdb_assert (type); |
1530 | ||
c906108c SS |
1531 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
1532 | { | |
1533 | if (!TYPE_TARGET_TYPE (type)) | |
1534 | { | |
0d5cff50 | 1535 | const char *name; |
c906108c SS |
1536 | struct symbol *sym; |
1537 | ||
1538 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 1539 | reading a symtab. Infinite recursion is one danger. */ |
c906108c | 1540 | if (currently_reading_symtab) |
92163a10 | 1541 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
1542 | |
1543 | name = type_name_no_tag (type); | |
7ba81444 MS |
1544 | /* FIXME: shouldn't we separately check the TYPE_NAME and |
1545 | the TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or | |
1546 | VAR_DOMAIN as appropriate? (this code was written before | |
1547 | TYPE_NAME and TYPE_TAG_NAME were separate). */ | |
c906108c SS |
1548 | if (name == NULL) |
1549 | { | |
23136709 | 1550 | stub_noname_complaint (); |
92163a10 | 1551 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 1552 | } |
2570f2b7 | 1553 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0); |
c906108c SS |
1554 | if (sym) |
1555 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
7ba81444 | 1556 | else /* TYPE_CODE_UNDEF */ |
e9bb382b | 1557 | TYPE_TARGET_TYPE (type) = alloc_type_arch (get_type_arch (type)); |
c906108c SS |
1558 | } |
1559 | type = TYPE_TARGET_TYPE (type); | |
c906108c | 1560 | |
92163a10 JK |
1561 | /* Preserve the instance flags as we traverse down the typedef chain. |
1562 | ||
1563 | Handling address spaces/classes is nasty, what do we do if there's a | |
1564 | conflict? | |
1565 | E.g., what if an outer typedef marks the type as class_1 and an inner | |
1566 | typedef marks the type as class_2? | |
1567 | This is the wrong place to do such error checking. We leave it to | |
1568 | the code that created the typedef in the first place to flag the | |
1569 | error. We just pick the outer address space (akin to letting the | |
1570 | outer cast in a chain of casting win), instead of assuming | |
1571 | "it can't happen". */ | |
1572 | { | |
1573 | const int ALL_SPACES = (TYPE_INSTANCE_FLAG_CODE_SPACE | |
1574 | | TYPE_INSTANCE_FLAG_DATA_SPACE); | |
1575 | const int ALL_CLASSES = TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL; | |
1576 | int new_instance_flags = TYPE_INSTANCE_FLAGS (type); | |
1577 | ||
1578 | /* Treat code vs data spaces and address classes separately. */ | |
1579 | if ((instance_flags & ALL_SPACES) != 0) | |
1580 | new_instance_flags &= ~ALL_SPACES; | |
1581 | if ((instance_flags & ALL_CLASSES) != 0) | |
1582 | new_instance_flags &= ~ALL_CLASSES; | |
1583 | ||
1584 | instance_flags |= new_instance_flags; | |
1585 | } | |
1586 | } | |
a02fd225 | 1587 | |
7ba81444 MS |
1588 | /* If this is a struct/class/union with no fields, then check |
1589 | whether a full definition exists somewhere else. This is for | |
1590 | systems where a type definition with no fields is issued for such | |
1591 | types, instead of identifying them as stub types in the first | |
1592 | place. */ | |
c5aa993b | 1593 | |
7ba81444 MS |
1594 | if (TYPE_IS_OPAQUE (type) |
1595 | && opaque_type_resolution | |
1596 | && !currently_reading_symtab) | |
c906108c | 1597 | { |
0d5cff50 | 1598 | const char *name = type_name_no_tag (type); |
c5aa993b | 1599 | struct type *newtype; |
d8734c88 | 1600 | |
c906108c SS |
1601 | if (name == NULL) |
1602 | { | |
23136709 | 1603 | stub_noname_complaint (); |
92163a10 | 1604 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
1605 | } |
1606 | newtype = lookup_transparent_type (name); | |
ad766c0a | 1607 | |
c906108c | 1608 | if (newtype) |
ad766c0a | 1609 | { |
7ba81444 MS |
1610 | /* If the resolved type and the stub are in the same |
1611 | objfile, then replace the stub type with the real deal. | |
1612 | But if they're in separate objfiles, leave the stub | |
1613 | alone; we'll just look up the transparent type every time | |
1614 | we call check_typedef. We can't create pointers between | |
1615 | types allocated to different objfiles, since they may | |
1616 | have different lifetimes. Trying to copy NEWTYPE over to | |
1617 | TYPE's objfile is pointless, too, since you'll have to | |
1618 | move over any other types NEWTYPE refers to, which could | |
1619 | be an unbounded amount of stuff. */ | |
ad766c0a | 1620 | if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
92163a10 JK |
1621 | type = make_qualified_type (newtype, |
1622 | TYPE_INSTANCE_FLAGS (type), | |
1623 | type); | |
ad766c0a JB |
1624 | else |
1625 | type = newtype; | |
1626 | } | |
c906108c | 1627 | } |
7ba81444 MS |
1628 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
1629 | types. */ | |
74a9bb82 | 1630 | else if (TYPE_STUB (type) && !currently_reading_symtab) |
c906108c | 1631 | { |
0d5cff50 | 1632 | const char *name = type_name_no_tag (type); |
c906108c | 1633 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
176620f1 | 1634 | TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or VAR_DOMAIN |
7b83ea04 AC |
1635 | as appropriate? (this code was written before TYPE_NAME and |
1636 | TYPE_TAG_NAME were separate). */ | |
c906108c | 1637 | struct symbol *sym; |
d8734c88 | 1638 | |
c906108c SS |
1639 | if (name == NULL) |
1640 | { | |
23136709 | 1641 | stub_noname_complaint (); |
92163a10 | 1642 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 1643 | } |
2570f2b7 | 1644 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0); |
c906108c | 1645 | if (sym) |
c26f2453 JB |
1646 | { |
1647 | /* Same as above for opaque types, we can replace the stub | |
92163a10 | 1648 | with the complete type only if they are in the same |
c26f2453 JB |
1649 | objfile. */ |
1650 | if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type)) | |
92163a10 JK |
1651 | type = make_qualified_type (SYMBOL_TYPE (sym), |
1652 | TYPE_INSTANCE_FLAGS (type), | |
1653 | type); | |
c26f2453 JB |
1654 | else |
1655 | type = SYMBOL_TYPE (sym); | |
1656 | } | |
c906108c SS |
1657 | } |
1658 | ||
74a9bb82 | 1659 | if (TYPE_TARGET_STUB (type)) |
c906108c SS |
1660 | { |
1661 | struct type *range_type; | |
1662 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1663 | ||
74a9bb82 | 1664 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
c5aa993b | 1665 | { |
73e2eb35 | 1666 | /* Nothing we can do. */ |
c5aa993b | 1667 | } |
c906108c SS |
1668 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY |
1669 | && TYPE_NFIELDS (type) == 1 | |
262452ec | 1670 | && (TYPE_CODE (range_type = TYPE_INDEX_TYPE (type)) |
c906108c SS |
1671 | == TYPE_CODE_RANGE)) |
1672 | { | |
1673 | /* Now recompute the length of the array type, based on its | |
ab0d6e0d JB |
1674 | number of elements and the target type's length. |
1675 | Watch out for Ada null Ada arrays where the high bound | |
0963b4bd | 1676 | is smaller than the low bound. */ |
43bbcdc2 PH |
1677 | const LONGEST low_bound = TYPE_LOW_BOUND (range_type); |
1678 | const LONGEST high_bound = TYPE_HIGH_BOUND (range_type); | |
1679 | ULONGEST len; | |
1680 | ||
ab0d6e0d | 1681 | if (high_bound < low_bound) |
43bbcdc2 | 1682 | len = 0; |
d8734c88 MS |
1683 | else |
1684 | { | |
1685 | /* For now, we conservatively take the array length to be 0 | |
1686 | if its length exceeds UINT_MAX. The code below assumes | |
1687 | that for x < 0, (ULONGEST) x == -x + ULONGEST_MAX + 1, | |
1688 | which is technically not guaranteed by C, but is usually true | |
1689 | (because it would be true if x were unsigned with its | |
0963b4bd | 1690 | high-order bit on). It uses the fact that |
d8734c88 MS |
1691 | high_bound-low_bound is always representable in |
1692 | ULONGEST and that if high_bound-low_bound+1 overflows, | |
1693 | it overflows to 0. We must change these tests if we | |
1694 | decide to increase the representation of TYPE_LENGTH | |
0963b4bd | 1695 | from unsigned int to ULONGEST. */ |
d8734c88 MS |
1696 | ULONGEST ulow = low_bound, uhigh = high_bound; |
1697 | ULONGEST tlen = TYPE_LENGTH (target_type); | |
1698 | ||
1699 | len = tlen * (uhigh - ulow + 1); | |
1700 | if (tlen == 0 || (len / tlen - 1 + ulow) != uhigh | |
1701 | || len > UINT_MAX) | |
1702 | len = 0; | |
1703 | } | |
43bbcdc2 | 1704 | TYPE_LENGTH (type) = len; |
876cecd0 | 1705 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
1706 | } |
1707 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) | |
1708 | { | |
1709 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
876cecd0 | 1710 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
1711 | } |
1712 | } | |
92163a10 JK |
1713 | |
1714 | type = make_qualified_type (type, instance_flags, NULL); | |
1715 | ||
7ba81444 | 1716 | /* Cache TYPE_LENGTH for future use. */ |
c906108c | 1717 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
92163a10 | 1718 | |
c906108c SS |
1719 | return type; |
1720 | } | |
1721 | ||
7ba81444 | 1722 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
48319d1f | 1723 | occurs, silently return a void type. */ |
c91ecb25 | 1724 | |
b9362cc7 | 1725 | static struct type * |
48319d1f | 1726 | safe_parse_type (struct gdbarch *gdbarch, char *p, int length) |
c91ecb25 ND |
1727 | { |
1728 | struct ui_file *saved_gdb_stderr; | |
34365054 | 1729 | struct type *type = NULL; /* Initialize to keep gcc happy. */ |
8e7b59a5 | 1730 | volatile struct gdb_exception except; |
c91ecb25 | 1731 | |
7ba81444 | 1732 | /* Suppress error messages. */ |
c91ecb25 ND |
1733 | saved_gdb_stderr = gdb_stderr; |
1734 | gdb_stderr = ui_file_new (); | |
1735 | ||
7ba81444 | 1736 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
8e7b59a5 KS |
1737 | TRY_CATCH (except, RETURN_MASK_ERROR) |
1738 | { | |
1739 | type = parse_and_eval_type (p, length); | |
1740 | } | |
1741 | ||
1742 | if (except.reason < 0) | |
48319d1f | 1743 | type = builtin_type (gdbarch)->builtin_void; |
c91ecb25 | 1744 | |
7ba81444 | 1745 | /* Stop suppressing error messages. */ |
c91ecb25 ND |
1746 | ui_file_delete (gdb_stderr); |
1747 | gdb_stderr = saved_gdb_stderr; | |
1748 | ||
1749 | return type; | |
1750 | } | |
1751 | ||
c906108c SS |
1752 | /* Ugly hack to convert method stubs into method types. |
1753 | ||
7ba81444 MS |
1754 | He ain't kiddin'. This demangles the name of the method into a |
1755 | string including argument types, parses out each argument type, | |
1756 | generates a string casting a zero to that type, evaluates the | |
1757 | string, and stuffs the resulting type into an argtype vector!!! | |
1758 | Then it knows the type of the whole function (including argument | |
1759 | types for overloading), which info used to be in the stab's but was | |
1760 | removed to hack back the space required for them. */ | |
c906108c | 1761 | |
de17c821 | 1762 | static void |
fba45db2 | 1763 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c | 1764 | { |
50810684 | 1765 | struct gdbarch *gdbarch = get_type_arch (type); |
c906108c SS |
1766 | struct fn_field *f; |
1767 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
8de20a37 TT |
1768 | char *demangled_name = gdb_demangle (mangled_name, |
1769 | DMGL_PARAMS | DMGL_ANSI); | |
c906108c SS |
1770 | char *argtypetext, *p; |
1771 | int depth = 0, argcount = 1; | |
ad2f7632 | 1772 | struct field *argtypes; |
c906108c SS |
1773 | struct type *mtype; |
1774 | ||
1775 | /* Make sure we got back a function string that we can use. */ | |
1776 | if (demangled_name) | |
1777 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
1778 | else |
1779 | p = NULL; | |
c906108c SS |
1780 | |
1781 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
1782 | error (_("Internal: Cannot demangle mangled name `%s'."), |
1783 | mangled_name); | |
c906108c SS |
1784 | |
1785 | /* Now, read in the parameters that define this type. */ | |
1786 | p += 1; | |
1787 | argtypetext = p; | |
1788 | while (*p) | |
1789 | { | |
070ad9f0 | 1790 | if (*p == '(' || *p == '<') |
c906108c SS |
1791 | { |
1792 | depth += 1; | |
1793 | } | |
070ad9f0 | 1794 | else if (*p == ')' || *p == '>') |
c906108c SS |
1795 | { |
1796 | depth -= 1; | |
1797 | } | |
1798 | else if (*p == ',' && depth == 0) | |
1799 | { | |
1800 | argcount += 1; | |
1801 | } | |
1802 | ||
1803 | p += 1; | |
1804 | } | |
1805 | ||
ad2f7632 DJ |
1806 | /* If we read one argument and it was ``void'', don't count it. */ |
1807 | if (strncmp (argtypetext, "(void)", 6) == 0) | |
1808 | argcount -= 1; | |
c906108c | 1809 | |
ad2f7632 DJ |
1810 | /* We need one extra slot, for the THIS pointer. */ |
1811 | ||
1812 | argtypes = (struct field *) | |
1813 | TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); | |
c906108c | 1814 | p = argtypetext; |
4a1970e4 DJ |
1815 | |
1816 | /* Add THIS pointer for non-static methods. */ | |
1817 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
1818 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
1819 | argcount = 0; | |
1820 | else | |
1821 | { | |
ad2f7632 | 1822 | argtypes[0].type = lookup_pointer_type (type); |
4a1970e4 DJ |
1823 | argcount = 1; |
1824 | } | |
c906108c | 1825 | |
0963b4bd | 1826 | if (*p != ')') /* () means no args, skip while. */ |
c906108c SS |
1827 | { |
1828 | depth = 0; | |
1829 | while (*p) | |
1830 | { | |
1831 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
1832 | { | |
ad2f7632 DJ |
1833 | /* Avoid parsing of ellipsis, they will be handled below. |
1834 | Also avoid ``void'' as above. */ | |
1835 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 | |
1836 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 1837 | { |
ad2f7632 | 1838 | argtypes[argcount].type = |
48319d1f | 1839 | safe_parse_type (gdbarch, argtypetext, p - argtypetext); |
c906108c SS |
1840 | argcount += 1; |
1841 | } | |
1842 | argtypetext = p + 1; | |
1843 | } | |
1844 | ||
070ad9f0 | 1845 | if (*p == '(' || *p == '<') |
c906108c SS |
1846 | { |
1847 | depth += 1; | |
1848 | } | |
070ad9f0 | 1849 | else if (*p == ')' || *p == '>') |
c906108c SS |
1850 | { |
1851 | depth -= 1; | |
1852 | } | |
1853 | ||
1854 | p += 1; | |
1855 | } | |
1856 | } | |
1857 | ||
c906108c SS |
1858 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
1859 | ||
1860 | /* Now update the old "stub" type into a real type. */ | |
1861 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
1862 | TYPE_DOMAIN_TYPE (mtype) = type; | |
ad2f7632 DJ |
1863 | TYPE_FIELDS (mtype) = argtypes; |
1864 | TYPE_NFIELDS (mtype) = argcount; | |
876cecd0 | 1865 | TYPE_STUB (mtype) = 0; |
c906108c | 1866 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
ad2f7632 | 1867 | if (p[-2] == '.') |
876cecd0 | 1868 | TYPE_VARARGS (mtype) = 1; |
ad2f7632 DJ |
1869 | |
1870 | xfree (demangled_name); | |
c906108c SS |
1871 | } |
1872 | ||
7ba81444 MS |
1873 | /* This is the external interface to check_stub_method, above. This |
1874 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
1875 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
1876 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
1877 | correct. | |
de17c821 DJ |
1878 | |
1879 | This function unfortunately can not die until stabs do. */ | |
1880 | ||
1881 | void | |
1882 | check_stub_method_group (struct type *type, int method_id) | |
1883 | { | |
1884 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
1885 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
f710f4fc | 1886 | int j, found_stub = 0; |
de17c821 DJ |
1887 | |
1888 | for (j = 0; j < len; j++) | |
1889 | if (TYPE_FN_FIELD_STUB (f, j)) | |
1890 | { | |
1891 | found_stub = 1; | |
1892 | check_stub_method (type, method_id, j); | |
1893 | } | |
1894 | ||
7ba81444 MS |
1895 | /* GNU v3 methods with incorrect names were corrected when we read |
1896 | in type information, because it was cheaper to do it then. The | |
1897 | only GNU v2 methods with incorrect method names are operators and | |
1898 | destructors; destructors were also corrected when we read in type | |
1899 | information. | |
de17c821 DJ |
1900 | |
1901 | Therefore the only thing we need to handle here are v2 operator | |
1902 | names. */ | |
1903 | if (found_stub && strncmp (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z", 2) != 0) | |
1904 | { | |
1905 | int ret; | |
1906 | char dem_opname[256]; | |
1907 | ||
7ba81444 MS |
1908 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
1909 | method_id), | |
de17c821 DJ |
1910 | dem_opname, DMGL_ANSI); |
1911 | if (!ret) | |
7ba81444 MS |
1912 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
1913 | method_id), | |
de17c821 DJ |
1914 | dem_opname, 0); |
1915 | if (ret) | |
1916 | TYPE_FN_FIELDLIST_NAME (type, method_id) = xstrdup (dem_opname); | |
1917 | } | |
1918 | } | |
1919 | ||
9655fd1a JK |
1920 | /* Ensure it is in .rodata (if available) by workarounding GCC PR 44690. */ |
1921 | const struct cplus_struct_type cplus_struct_default = { }; | |
c906108c SS |
1922 | |
1923 | void | |
fba45db2 | 1924 | allocate_cplus_struct_type (struct type *type) |
c906108c | 1925 | { |
b4ba55a1 JB |
1926 | if (HAVE_CPLUS_STRUCT (type)) |
1927 | /* Structure was already allocated. Nothing more to do. */ | |
1928 | return; | |
1929 | ||
1930 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF; | |
1931 | TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
1932 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
1933 | *(TYPE_RAW_CPLUS_SPECIFIC (type)) = cplus_struct_default; | |
c906108c SS |
1934 | } |
1935 | ||
b4ba55a1 JB |
1936 | const struct gnat_aux_type gnat_aux_default = |
1937 | { NULL }; | |
1938 | ||
1939 | /* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF, | |
1940 | and allocate the associated gnat-specific data. The gnat-specific | |
1941 | data is also initialized to gnat_aux_default. */ | |
5212577a | 1942 | |
b4ba55a1 JB |
1943 | void |
1944 | allocate_gnat_aux_type (struct type *type) | |
1945 | { | |
1946 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF; | |
1947 | TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) | |
1948 | TYPE_ALLOC (type, sizeof (struct gnat_aux_type)); | |
1949 | *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default; | |
1950 | } | |
1951 | ||
c906108c SS |
1952 | /* Helper function to initialize the standard scalar types. |
1953 | ||
86f62fd7 TT |
1954 | If NAME is non-NULL, then it is used to initialize the type name. |
1955 | Note that NAME is not copied; it is required to have a lifetime at | |
1956 | least as long as OBJFILE. */ | |
c906108c SS |
1957 | |
1958 | struct type * | |
7ba81444 | 1959 | init_type (enum type_code code, int length, int flags, |
748e18ae | 1960 | const char *name, struct objfile *objfile) |
c906108c | 1961 | { |
52f0bd74 | 1962 | struct type *type; |
c906108c SS |
1963 | |
1964 | type = alloc_type (objfile); | |
1965 | TYPE_CODE (type) = code; | |
1966 | TYPE_LENGTH (type) = length; | |
876cecd0 TT |
1967 | |
1968 | gdb_assert (!(flags & (TYPE_FLAG_MIN - 1))); | |
1969 | if (flags & TYPE_FLAG_UNSIGNED) | |
1970 | TYPE_UNSIGNED (type) = 1; | |
1971 | if (flags & TYPE_FLAG_NOSIGN) | |
1972 | TYPE_NOSIGN (type) = 1; | |
1973 | if (flags & TYPE_FLAG_STUB) | |
1974 | TYPE_STUB (type) = 1; | |
1975 | if (flags & TYPE_FLAG_TARGET_STUB) | |
1976 | TYPE_TARGET_STUB (type) = 1; | |
1977 | if (flags & TYPE_FLAG_STATIC) | |
1978 | TYPE_STATIC (type) = 1; | |
1979 | if (flags & TYPE_FLAG_PROTOTYPED) | |
1980 | TYPE_PROTOTYPED (type) = 1; | |
1981 | if (flags & TYPE_FLAG_INCOMPLETE) | |
1982 | TYPE_INCOMPLETE (type) = 1; | |
1983 | if (flags & TYPE_FLAG_VARARGS) | |
1984 | TYPE_VARARGS (type) = 1; | |
1985 | if (flags & TYPE_FLAG_VECTOR) | |
1986 | TYPE_VECTOR (type) = 1; | |
1987 | if (flags & TYPE_FLAG_STUB_SUPPORTED) | |
1988 | TYPE_STUB_SUPPORTED (type) = 1; | |
876cecd0 TT |
1989 | if (flags & TYPE_FLAG_FIXED_INSTANCE) |
1990 | TYPE_FIXED_INSTANCE (type) = 1; | |
0875794a JK |
1991 | if (flags & TYPE_FLAG_GNU_IFUNC) |
1992 | TYPE_GNU_IFUNC (type) = 1; | |
876cecd0 | 1993 | |
86f62fd7 | 1994 | TYPE_NAME (type) = name; |
c906108c SS |
1995 | |
1996 | /* C++ fancies. */ | |
1997 | ||
973ccf8b | 1998 | if (name && strcmp (name, "char") == 0) |
876cecd0 | 1999 | TYPE_NOSIGN (type) = 1; |
973ccf8b | 2000 | |
b4ba55a1 | 2001 | switch (code) |
c906108c | 2002 | { |
b4ba55a1 JB |
2003 | case TYPE_CODE_STRUCT: |
2004 | case TYPE_CODE_UNION: | |
2005 | case TYPE_CODE_NAMESPACE: | |
2006 | INIT_CPLUS_SPECIFIC (type); | |
2007 | break; | |
2008 | case TYPE_CODE_FLT: | |
2009 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT; | |
2010 | break; | |
2011 | case TYPE_CODE_FUNC: | |
b6cdc2c1 | 2012 | INIT_FUNC_SPECIFIC (type); |
b4ba55a1 | 2013 | break; |
c906108c | 2014 | } |
c16abbde | 2015 | return type; |
c906108c | 2016 | } |
5212577a DE |
2017 | \f |
2018 | /* Queries on types. */ | |
c906108c | 2019 | |
c906108c | 2020 | int |
fba45db2 | 2021 | can_dereference (struct type *t) |
c906108c | 2022 | { |
7ba81444 MS |
2023 | /* FIXME: Should we return true for references as well as |
2024 | pointers? */ | |
c906108c SS |
2025 | CHECK_TYPEDEF (t); |
2026 | return | |
2027 | (t != NULL | |
2028 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
2029 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
2030 | } | |
2031 | ||
adf40b2e | 2032 | int |
fba45db2 | 2033 | is_integral_type (struct type *t) |
adf40b2e JM |
2034 | { |
2035 | CHECK_TYPEDEF (t); | |
2036 | return | |
2037 | ((t != NULL) | |
d4f3574e SS |
2038 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
2039 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
4f2aea11 | 2040 | || (TYPE_CODE (t) == TYPE_CODE_FLAGS) |
d4f3574e SS |
2041 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) |
2042 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
2043 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
2044 | } |
2045 | ||
e09342b5 TJB |
2046 | /* Return true if TYPE is scalar. */ |
2047 | ||
2048 | static int | |
2049 | is_scalar_type (struct type *type) | |
2050 | { | |
2051 | CHECK_TYPEDEF (type); | |
2052 | ||
2053 | switch (TYPE_CODE (type)) | |
2054 | { | |
2055 | case TYPE_CODE_ARRAY: | |
2056 | case TYPE_CODE_STRUCT: | |
2057 | case TYPE_CODE_UNION: | |
2058 | case TYPE_CODE_SET: | |
2059 | case TYPE_CODE_STRING: | |
e09342b5 TJB |
2060 | return 0; |
2061 | default: | |
2062 | return 1; | |
2063 | } | |
2064 | } | |
2065 | ||
2066 | /* Return true if T is scalar, or a composite type which in practice has | |
90e4670f TJB |
2067 | the memory layout of a scalar type. E.g., an array or struct with only |
2068 | one scalar element inside it, or a union with only scalar elements. */ | |
e09342b5 TJB |
2069 | |
2070 | int | |
2071 | is_scalar_type_recursive (struct type *t) | |
2072 | { | |
2073 | CHECK_TYPEDEF (t); | |
2074 | ||
2075 | if (is_scalar_type (t)) | |
2076 | return 1; | |
2077 | /* Are we dealing with an array or string of known dimensions? */ | |
2078 | else if ((TYPE_CODE (t) == TYPE_CODE_ARRAY | |
2079 | || TYPE_CODE (t) == TYPE_CODE_STRING) && TYPE_NFIELDS (t) == 1 | |
2080 | && TYPE_CODE (TYPE_INDEX_TYPE (t)) == TYPE_CODE_RANGE) | |
2081 | { | |
2082 | LONGEST low_bound, high_bound; | |
2083 | struct type *elt_type = check_typedef (TYPE_TARGET_TYPE (t)); | |
2084 | ||
2085 | get_discrete_bounds (TYPE_INDEX_TYPE (t), &low_bound, &high_bound); | |
2086 | ||
2087 | return high_bound == low_bound && is_scalar_type_recursive (elt_type); | |
2088 | } | |
2089 | /* Are we dealing with a struct with one element? */ | |
2090 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT && TYPE_NFIELDS (t) == 1) | |
2091 | return is_scalar_type_recursive (TYPE_FIELD_TYPE (t, 0)); | |
2092 | else if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
2093 | { | |
2094 | int i, n = TYPE_NFIELDS (t); | |
2095 | ||
2096 | /* If all elements of the union are scalar, then the union is scalar. */ | |
2097 | for (i = 0; i < n; i++) | |
2098 | if (!is_scalar_type_recursive (TYPE_FIELD_TYPE (t, i))) | |
2099 | return 0; | |
2100 | ||
2101 | return 1; | |
2102 | } | |
2103 | ||
2104 | return 0; | |
2105 | } | |
2106 | ||
4e8f195d TT |
2107 | /* A helper function which returns true if types A and B represent the |
2108 | "same" class type. This is true if the types have the same main | |
2109 | type, or the same name. */ | |
2110 | ||
2111 | int | |
2112 | class_types_same_p (const struct type *a, const struct type *b) | |
2113 | { | |
2114 | return (TYPE_MAIN_TYPE (a) == TYPE_MAIN_TYPE (b) | |
2115 | || (TYPE_NAME (a) && TYPE_NAME (b) | |
2116 | && !strcmp (TYPE_NAME (a), TYPE_NAME (b)))); | |
2117 | } | |
2118 | ||
a9d5ef47 SW |
2119 | /* If BASE is an ancestor of DCLASS return the distance between them. |
2120 | otherwise return -1; | |
2121 | eg: | |
2122 | ||
2123 | class A {}; | |
2124 | class B: public A {}; | |
2125 | class C: public B {}; | |
2126 | class D: C {}; | |
2127 | ||
2128 | distance_to_ancestor (A, A, 0) = 0 | |
2129 | distance_to_ancestor (A, B, 0) = 1 | |
2130 | distance_to_ancestor (A, C, 0) = 2 | |
2131 | distance_to_ancestor (A, D, 0) = 3 | |
2132 | ||
2133 | If PUBLIC is 1 then only public ancestors are considered, | |
2134 | and the function returns the distance only if BASE is a public ancestor | |
2135 | of DCLASS. | |
2136 | Eg: | |
2137 | ||
0963b4bd | 2138 | distance_to_ancestor (A, D, 1) = -1. */ |
c906108c | 2139 | |
0526b37a | 2140 | static int |
a9d5ef47 | 2141 | distance_to_ancestor (struct type *base, struct type *dclass, int public) |
c906108c SS |
2142 | { |
2143 | int i; | |
a9d5ef47 | 2144 | int d; |
c5aa993b | 2145 | |
c906108c SS |
2146 | CHECK_TYPEDEF (base); |
2147 | CHECK_TYPEDEF (dclass); | |
2148 | ||
4e8f195d | 2149 | if (class_types_same_p (base, dclass)) |
a9d5ef47 | 2150 | return 0; |
c906108c SS |
2151 | |
2152 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
4e8f195d | 2153 | { |
0526b37a SW |
2154 | if (public && ! BASETYPE_VIA_PUBLIC (dclass, i)) |
2155 | continue; | |
2156 | ||
a9d5ef47 SW |
2157 | d = distance_to_ancestor (base, TYPE_BASECLASS (dclass, i), public); |
2158 | if (d >= 0) | |
2159 | return 1 + d; | |
4e8f195d | 2160 | } |
c906108c | 2161 | |
a9d5ef47 | 2162 | return -1; |
c906108c | 2163 | } |
4e8f195d | 2164 | |
0526b37a SW |
2165 | /* Check whether BASE is an ancestor or base class or DCLASS |
2166 | Return 1 if so, and 0 if not. | |
2167 | Note: If BASE and DCLASS are of the same type, this function | |
2168 | will return 1. So for some class A, is_ancestor (A, A) will | |
2169 | return 1. */ | |
2170 | ||
2171 | int | |
2172 | is_ancestor (struct type *base, struct type *dclass) | |
2173 | { | |
a9d5ef47 | 2174 | return distance_to_ancestor (base, dclass, 0) >= 0; |
0526b37a SW |
2175 | } |
2176 | ||
4e8f195d TT |
2177 | /* Like is_ancestor, but only returns true when BASE is a public |
2178 | ancestor of DCLASS. */ | |
2179 | ||
2180 | int | |
2181 | is_public_ancestor (struct type *base, struct type *dclass) | |
2182 | { | |
a9d5ef47 | 2183 | return distance_to_ancestor (base, dclass, 1) >= 0; |
4e8f195d TT |
2184 | } |
2185 | ||
2186 | /* A helper function for is_unique_ancestor. */ | |
2187 | ||
2188 | static int | |
2189 | is_unique_ancestor_worker (struct type *base, struct type *dclass, | |
2190 | int *offset, | |
8af8e3bc PA |
2191 | const gdb_byte *valaddr, int embedded_offset, |
2192 | CORE_ADDR address, struct value *val) | |
4e8f195d TT |
2193 | { |
2194 | int i, count = 0; | |
2195 | ||
2196 | CHECK_TYPEDEF (base); | |
2197 | CHECK_TYPEDEF (dclass); | |
2198 | ||
2199 | for (i = 0; i < TYPE_N_BASECLASSES (dclass) && count < 2; ++i) | |
2200 | { | |
8af8e3bc PA |
2201 | struct type *iter; |
2202 | int this_offset; | |
4e8f195d | 2203 | |
8af8e3bc PA |
2204 | iter = check_typedef (TYPE_BASECLASS (dclass, i)); |
2205 | ||
2206 | this_offset = baseclass_offset (dclass, i, valaddr, embedded_offset, | |
2207 | address, val); | |
4e8f195d TT |
2208 | |
2209 | if (class_types_same_p (base, iter)) | |
2210 | { | |
2211 | /* If this is the first subclass, set *OFFSET and set count | |
2212 | to 1. Otherwise, if this is at the same offset as | |
2213 | previous instances, do nothing. Otherwise, increment | |
2214 | count. */ | |
2215 | if (*offset == -1) | |
2216 | { | |
2217 | *offset = this_offset; | |
2218 | count = 1; | |
2219 | } | |
2220 | else if (this_offset == *offset) | |
2221 | { | |
2222 | /* Nothing. */ | |
2223 | } | |
2224 | else | |
2225 | ++count; | |
2226 | } | |
2227 | else | |
2228 | count += is_unique_ancestor_worker (base, iter, offset, | |
8af8e3bc PA |
2229 | valaddr, |
2230 | embedded_offset + this_offset, | |
2231 | address, val); | |
4e8f195d TT |
2232 | } |
2233 | ||
2234 | return count; | |
2235 | } | |
2236 | ||
2237 | /* Like is_ancestor, but only returns true if BASE is a unique base | |
2238 | class of the type of VAL. */ | |
2239 | ||
2240 | int | |
2241 | is_unique_ancestor (struct type *base, struct value *val) | |
2242 | { | |
2243 | int offset = -1; | |
2244 | ||
2245 | return is_unique_ancestor_worker (base, value_type (val), &offset, | |
8af8e3bc PA |
2246 | value_contents_for_printing (val), |
2247 | value_embedded_offset (val), | |
2248 | value_address (val), val) == 1; | |
4e8f195d TT |
2249 | } |
2250 | ||
c906108c | 2251 | \f |
5212577a | 2252 | /* Overload resolution. */ |
c906108c | 2253 | |
6403aeea SW |
2254 | /* Return the sum of the rank of A with the rank of B. */ |
2255 | ||
2256 | struct rank | |
2257 | sum_ranks (struct rank a, struct rank b) | |
2258 | { | |
2259 | struct rank c; | |
2260 | c.rank = a.rank + b.rank; | |
a9d5ef47 | 2261 | c.subrank = a.subrank + b.subrank; |
6403aeea SW |
2262 | return c; |
2263 | } | |
2264 | ||
2265 | /* Compare rank A and B and return: | |
2266 | 0 if a = b | |
2267 | 1 if a is better than b | |
2268 | -1 if b is better than a. */ | |
2269 | ||
2270 | int | |
2271 | compare_ranks (struct rank a, struct rank b) | |
2272 | { | |
2273 | if (a.rank == b.rank) | |
a9d5ef47 SW |
2274 | { |
2275 | if (a.subrank == b.subrank) | |
2276 | return 0; | |
2277 | if (a.subrank < b.subrank) | |
2278 | return 1; | |
2279 | if (a.subrank > b.subrank) | |
2280 | return -1; | |
2281 | } | |
6403aeea SW |
2282 | |
2283 | if (a.rank < b.rank) | |
2284 | return 1; | |
2285 | ||
0963b4bd | 2286 | /* a.rank > b.rank */ |
6403aeea SW |
2287 | return -1; |
2288 | } | |
c5aa993b | 2289 | |
0963b4bd | 2290 | /* Functions for overload resolution begin here. */ |
c906108c SS |
2291 | |
2292 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
2293 | 0 => A and B are identical |
2294 | 1 => A and B are incomparable | |
2295 | 2 => A is better than B | |
2296 | 3 => A is worse than B */ | |
c906108c SS |
2297 | |
2298 | int | |
fba45db2 | 2299 | compare_badness (struct badness_vector *a, struct badness_vector *b) |
c906108c SS |
2300 | { |
2301 | int i; | |
2302 | int tmp; | |
c5aa993b JM |
2303 | short found_pos = 0; /* any positives in c? */ |
2304 | short found_neg = 0; /* any negatives in c? */ | |
2305 | ||
2306 | /* differing lengths => incomparable */ | |
c906108c SS |
2307 | if (a->length != b->length) |
2308 | return 1; | |
2309 | ||
c5aa993b JM |
2310 | /* Subtract b from a */ |
2311 | for (i = 0; i < a->length; i++) | |
c906108c | 2312 | { |
6403aeea | 2313 | tmp = compare_ranks (b->rank[i], a->rank[i]); |
c906108c | 2314 | if (tmp > 0) |
c5aa993b | 2315 | found_pos = 1; |
c906108c | 2316 | else if (tmp < 0) |
c5aa993b | 2317 | found_neg = 1; |
c906108c SS |
2318 | } |
2319 | ||
2320 | if (found_pos) | |
2321 | { | |
2322 | if (found_neg) | |
c5aa993b | 2323 | return 1; /* incomparable */ |
c906108c | 2324 | else |
c5aa993b | 2325 | return 3; /* A > B */ |
c906108c | 2326 | } |
c5aa993b JM |
2327 | else |
2328 | /* no positives */ | |
c906108c SS |
2329 | { |
2330 | if (found_neg) | |
c5aa993b | 2331 | return 2; /* A < B */ |
c906108c | 2332 | else |
c5aa993b | 2333 | return 0; /* A == B */ |
c906108c SS |
2334 | } |
2335 | } | |
2336 | ||
7ba81444 MS |
2337 | /* Rank a function by comparing its parameter types (PARMS, length |
2338 | NPARMS), to the types of an argument list (ARGS, length NARGS). | |
2339 | Return a pointer to a badness vector. This has NARGS + 1 | |
2340 | entries. */ | |
c906108c SS |
2341 | |
2342 | struct badness_vector * | |
7ba81444 | 2343 | rank_function (struct type **parms, int nparms, |
da096638 | 2344 | struct value **args, int nargs) |
c906108c SS |
2345 | { |
2346 | int i; | |
c5aa993b | 2347 | struct badness_vector *bv; |
c906108c SS |
2348 | int min_len = nparms < nargs ? nparms : nargs; |
2349 | ||
2350 | bv = xmalloc (sizeof (struct badness_vector)); | |
0963b4bd | 2351 | bv->length = nargs + 1; /* add 1 for the length-match rank. */ |
c906108c SS |
2352 | bv->rank = xmalloc ((nargs + 1) * sizeof (int)); |
2353 | ||
2354 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 2355 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 2356 | |
c906108c | 2357 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
2358 | arguments and ellipsis parameter lists, we should consider those |
2359 | and rank the length-match more finely. */ | |
c906108c | 2360 | |
6403aeea SW |
2361 | LENGTH_MATCH (bv) = (nargs != nparms) |
2362 | ? LENGTH_MISMATCH_BADNESS | |
2363 | : EXACT_MATCH_BADNESS; | |
c906108c | 2364 | |
0963b4bd | 2365 | /* Now rank all the parameters of the candidate function. */ |
74cc24b0 | 2366 | for (i = 1; i <= min_len; i++) |
da096638 KS |
2367 | bv->rank[i] = rank_one_type (parms[i - 1], value_type (args[i - 1]), |
2368 | args[i - 1]); | |
c906108c | 2369 | |
0963b4bd | 2370 | /* If more arguments than parameters, add dummy entries. */ |
c5aa993b | 2371 | for (i = min_len + 1; i <= nargs; i++) |
c906108c SS |
2372 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
2373 | ||
2374 | return bv; | |
2375 | } | |
2376 | ||
973ccf8b DJ |
2377 | /* Compare the names of two integer types, assuming that any sign |
2378 | qualifiers have been checked already. We do it this way because | |
2379 | there may be an "int" in the name of one of the types. */ | |
2380 | ||
2381 | static int | |
2382 | integer_types_same_name_p (const char *first, const char *second) | |
2383 | { | |
2384 | int first_p, second_p; | |
2385 | ||
7ba81444 MS |
2386 | /* If both are shorts, return 1; if neither is a short, keep |
2387 | checking. */ | |
973ccf8b DJ |
2388 | first_p = (strstr (first, "short") != NULL); |
2389 | second_p = (strstr (second, "short") != NULL); | |
2390 | if (first_p && second_p) | |
2391 | return 1; | |
2392 | if (first_p || second_p) | |
2393 | return 0; | |
2394 | ||
2395 | /* Likewise for long. */ | |
2396 | first_p = (strstr (first, "long") != NULL); | |
2397 | second_p = (strstr (second, "long") != NULL); | |
2398 | if (first_p && second_p) | |
2399 | return 1; | |
2400 | if (first_p || second_p) | |
2401 | return 0; | |
2402 | ||
2403 | /* Likewise for char. */ | |
2404 | first_p = (strstr (first, "char") != NULL); | |
2405 | second_p = (strstr (second, "char") != NULL); | |
2406 | if (first_p && second_p) | |
2407 | return 1; | |
2408 | if (first_p || second_p) | |
2409 | return 0; | |
2410 | ||
2411 | /* They must both be ints. */ | |
2412 | return 1; | |
2413 | } | |
2414 | ||
7062b0a0 SW |
2415 | /* Compares type A to type B returns 1 if the represent the same type |
2416 | 0 otherwise. */ | |
2417 | ||
bd69fc68 | 2418 | int |
7062b0a0 SW |
2419 | types_equal (struct type *a, struct type *b) |
2420 | { | |
2421 | /* Identical type pointers. */ | |
2422 | /* However, this still doesn't catch all cases of same type for b | |
2423 | and a. The reason is that builtin types are different from | |
2424 | the same ones constructed from the object. */ | |
2425 | if (a == b) | |
2426 | return 1; | |
2427 | ||
2428 | /* Resolve typedefs */ | |
2429 | if (TYPE_CODE (a) == TYPE_CODE_TYPEDEF) | |
2430 | a = check_typedef (a); | |
2431 | if (TYPE_CODE (b) == TYPE_CODE_TYPEDEF) | |
2432 | b = check_typedef (b); | |
2433 | ||
2434 | /* If after resolving typedefs a and b are not of the same type | |
2435 | code then they are not equal. */ | |
2436 | if (TYPE_CODE (a) != TYPE_CODE (b)) | |
2437 | return 0; | |
2438 | ||
2439 | /* If a and b are both pointers types or both reference types then | |
2440 | they are equal of the same type iff the objects they refer to are | |
2441 | of the same type. */ | |
2442 | if (TYPE_CODE (a) == TYPE_CODE_PTR | |
2443 | || TYPE_CODE (a) == TYPE_CODE_REF) | |
2444 | return types_equal (TYPE_TARGET_TYPE (a), | |
2445 | TYPE_TARGET_TYPE (b)); | |
2446 | ||
0963b4bd | 2447 | /* Well, damnit, if the names are exactly the same, I'll say they |
7062b0a0 SW |
2448 | are exactly the same. This happens when we generate method |
2449 | stubs. The types won't point to the same address, but they | |
0963b4bd | 2450 | really are the same. */ |
7062b0a0 SW |
2451 | |
2452 | if (TYPE_NAME (a) && TYPE_NAME (b) | |
2453 | && strcmp (TYPE_NAME (a), TYPE_NAME (b)) == 0) | |
2454 | return 1; | |
2455 | ||
2456 | /* Check if identical after resolving typedefs. */ | |
2457 | if (a == b) | |
2458 | return 1; | |
2459 | ||
9ce98649 TT |
2460 | /* Two function types are equal if their argument and return types |
2461 | are equal. */ | |
2462 | if (TYPE_CODE (a) == TYPE_CODE_FUNC) | |
2463 | { | |
2464 | int i; | |
2465 | ||
2466 | if (TYPE_NFIELDS (a) != TYPE_NFIELDS (b)) | |
2467 | return 0; | |
2468 | ||
2469 | if (!types_equal (TYPE_TARGET_TYPE (a), TYPE_TARGET_TYPE (b))) | |
2470 | return 0; | |
2471 | ||
2472 | for (i = 0; i < TYPE_NFIELDS (a); ++i) | |
2473 | if (!types_equal (TYPE_FIELD_TYPE (a, i), TYPE_FIELD_TYPE (b, i))) | |
2474 | return 0; | |
2475 | ||
2476 | return 1; | |
2477 | } | |
2478 | ||
7062b0a0 SW |
2479 | return 0; |
2480 | } | |
2481 | ||
c906108c SS |
2482 | /* Compare one type (PARM) for compatibility with another (ARG). |
2483 | * PARM is intended to be the parameter type of a function; and | |
2484 | * ARG is the supplied argument's type. This function tests if | |
2485 | * the latter can be converted to the former. | |
da096638 | 2486 | * VALUE is the argument's value or NULL if none (or called recursively) |
c906108c SS |
2487 | * |
2488 | * Return 0 if they are identical types; | |
2489 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 MS |
2490 | * PARM is to ARG. The higher the return value, the worse the match. |
2491 | * Generally the "bad" conversions are all uniformly assigned a 100. */ | |
c906108c | 2492 | |
6403aeea | 2493 | struct rank |
da096638 | 2494 | rank_one_type (struct type *parm, struct type *arg, struct value *value) |
c906108c | 2495 | { |
a9d5ef47 | 2496 | struct rank rank = {0,0}; |
7062b0a0 SW |
2497 | |
2498 | if (types_equal (parm, arg)) | |
6403aeea | 2499 | return EXACT_MATCH_BADNESS; |
c906108c SS |
2500 | |
2501 | /* Resolve typedefs */ | |
2502 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
2503 | parm = check_typedef (parm); | |
2504 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
2505 | arg = check_typedef (arg); | |
2506 | ||
db577aea | 2507 | /* See through references, since we can almost make non-references |
7ba81444 | 2508 | references. */ |
db577aea | 2509 | if (TYPE_CODE (arg) == TYPE_CODE_REF) |
da096638 | 2510 | return (sum_ranks (rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL), |
6403aeea | 2511 | REFERENCE_CONVERSION_BADNESS)); |
db577aea | 2512 | if (TYPE_CODE (parm) == TYPE_CODE_REF) |
da096638 | 2513 | return (sum_ranks (rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL), |
6403aeea | 2514 | REFERENCE_CONVERSION_BADNESS)); |
5d161b24 | 2515 | if (overload_debug) |
7ba81444 MS |
2516 | /* Debugging only. */ |
2517 | fprintf_filtered (gdb_stderr, | |
2518 | "------ Arg is %s [%d], parm is %s [%d]\n", | |
2519 | TYPE_NAME (arg), TYPE_CODE (arg), | |
2520 | TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c | 2521 | |
0963b4bd | 2522 | /* x -> y means arg of type x being supplied for parameter of type y. */ |
c906108c SS |
2523 | |
2524 | switch (TYPE_CODE (parm)) | |
2525 | { | |
c5aa993b JM |
2526 | case TYPE_CODE_PTR: |
2527 | switch (TYPE_CODE (arg)) | |
2528 | { | |
2529 | case TYPE_CODE_PTR: | |
7062b0a0 SW |
2530 | |
2531 | /* Allowed pointer conversions are: | |
2532 | (a) pointer to void-pointer conversion. */ | |
2533 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) | |
c5aa993b | 2534 | return VOID_PTR_CONVERSION_BADNESS; |
7062b0a0 SW |
2535 | |
2536 | /* (b) pointer to ancestor-pointer conversion. */ | |
a9d5ef47 SW |
2537 | rank.subrank = distance_to_ancestor (TYPE_TARGET_TYPE (parm), |
2538 | TYPE_TARGET_TYPE (arg), | |
2539 | 0); | |
2540 | if (rank.subrank >= 0) | |
2541 | return sum_ranks (BASE_PTR_CONVERSION_BADNESS, rank); | |
7062b0a0 SW |
2542 | |
2543 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 2544 | case TYPE_CODE_ARRAY: |
7062b0a0 SW |
2545 | if (types_equal (TYPE_TARGET_TYPE (parm), |
2546 | TYPE_TARGET_TYPE (arg))) | |
6403aeea | 2547 | return EXACT_MATCH_BADNESS; |
7062b0a0 | 2548 | return INCOMPATIBLE_TYPE_BADNESS; |
c5aa993b | 2549 | case TYPE_CODE_FUNC: |
da096638 | 2550 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL); |
c5aa993b | 2551 | case TYPE_CODE_INT: |
a451cb65 | 2552 | if (value != NULL && TYPE_CODE (value_type (value)) == TYPE_CODE_INT) |
da096638 | 2553 | { |
a451cb65 KS |
2554 | if (value_as_long (value) == 0) |
2555 | { | |
2556 | /* Null pointer conversion: allow it to be cast to a pointer. | |
2557 | [4.10.1 of C++ standard draft n3290] */ | |
2558 | return NULL_POINTER_CONVERSION_BADNESS; | |
2559 | } | |
2560 | else | |
2561 | { | |
2562 | /* If type checking is disabled, allow the conversion. */ | |
2563 | if (!strict_type_checking) | |
2564 | return NS_INTEGER_POINTER_CONVERSION_BADNESS; | |
2565 | } | |
da096638 KS |
2566 | } |
2567 | /* fall through */ | |
c5aa993b | 2568 | case TYPE_CODE_ENUM: |
4f2aea11 | 2569 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
2570 | case TYPE_CODE_CHAR: |
2571 | case TYPE_CODE_RANGE: | |
2572 | case TYPE_CODE_BOOL: | |
c5aa993b JM |
2573 | default: |
2574 | return INCOMPATIBLE_TYPE_BADNESS; | |
2575 | } | |
2576 | case TYPE_CODE_ARRAY: | |
2577 | switch (TYPE_CODE (arg)) | |
2578 | { | |
2579 | case TYPE_CODE_PTR: | |
2580 | case TYPE_CODE_ARRAY: | |
7ba81444 | 2581 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
da096638 | 2582 | TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
2583 | default: |
2584 | return INCOMPATIBLE_TYPE_BADNESS; | |
2585 | } | |
2586 | case TYPE_CODE_FUNC: | |
2587 | switch (TYPE_CODE (arg)) | |
2588 | { | |
2589 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
da096638 | 2590 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
2591 | default: |
2592 | return INCOMPATIBLE_TYPE_BADNESS; | |
2593 | } | |
2594 | case TYPE_CODE_INT: | |
2595 | switch (TYPE_CODE (arg)) | |
2596 | { | |
2597 | case TYPE_CODE_INT: | |
2598 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2599 | { | |
2600 | /* Deal with signed, unsigned, and plain chars and | |
7ba81444 | 2601 | signed and unsigned ints. */ |
c5aa993b JM |
2602 | if (TYPE_NOSIGN (parm)) |
2603 | { | |
0963b4bd | 2604 | /* This case only for character types. */ |
7ba81444 | 2605 | if (TYPE_NOSIGN (arg)) |
6403aeea | 2606 | return EXACT_MATCH_BADNESS; /* plain char -> plain char */ |
7ba81444 MS |
2607 | else /* signed/unsigned char -> plain char */ |
2608 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
2609 | } |
2610 | else if (TYPE_UNSIGNED (parm)) | |
2611 | { | |
2612 | if (TYPE_UNSIGNED (arg)) | |
2613 | { | |
7ba81444 MS |
2614 | /* unsigned int -> unsigned int, or |
2615 | unsigned long -> unsigned long */ | |
2616 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
2617 | TYPE_NAME (arg))) | |
6403aeea | 2618 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
2619 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
2620 | "int") | |
2621 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2622 | "long")) | |
3e43a32a MS |
2623 | /* unsigned int -> unsigned long */ |
2624 | return INTEGER_PROMOTION_BADNESS; | |
c5aa993b | 2625 | else |
3e43a32a MS |
2626 | /* unsigned long -> unsigned int */ |
2627 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
2628 | } |
2629 | else | |
2630 | { | |
7ba81444 MS |
2631 | if (integer_types_same_name_p (TYPE_NAME (arg), |
2632 | "long") | |
2633 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2634 | "int")) | |
3e43a32a MS |
2635 | /* signed long -> unsigned int */ |
2636 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b | 2637 | else |
3e43a32a MS |
2638 | /* signed int/long -> unsigned int/long */ |
2639 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
2640 | } |
2641 | } | |
2642 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2643 | { | |
7ba81444 MS |
2644 | if (integer_types_same_name_p (TYPE_NAME (parm), |
2645 | TYPE_NAME (arg))) | |
6403aeea | 2646 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
2647 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
2648 | "int") | |
2649 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2650 | "long")) | |
c5aa993b JM |
2651 | return INTEGER_PROMOTION_BADNESS; |
2652 | else | |
1c5cb38e | 2653 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2654 | } |
2655 | else | |
1c5cb38e | 2656 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2657 | } |
2658 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2659 | return INTEGER_PROMOTION_BADNESS; | |
2660 | else | |
1c5cb38e | 2661 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b | 2662 | case TYPE_CODE_ENUM: |
4f2aea11 | 2663 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
2664 | case TYPE_CODE_CHAR: |
2665 | case TYPE_CODE_RANGE: | |
2666 | case TYPE_CODE_BOOL: | |
2667 | return INTEGER_PROMOTION_BADNESS; | |
2668 | case TYPE_CODE_FLT: | |
2669 | return INT_FLOAT_CONVERSION_BADNESS; | |
2670 | case TYPE_CODE_PTR: | |
2671 | return NS_POINTER_CONVERSION_BADNESS; | |
2672 | default: | |
2673 | return INCOMPATIBLE_TYPE_BADNESS; | |
2674 | } | |
2675 | break; | |
2676 | case TYPE_CODE_ENUM: | |
2677 | switch (TYPE_CODE (arg)) | |
2678 | { | |
2679 | case TYPE_CODE_INT: | |
2680 | case TYPE_CODE_CHAR: | |
2681 | case TYPE_CODE_RANGE: | |
2682 | case TYPE_CODE_BOOL: | |
2683 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2684 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2685 | case TYPE_CODE_FLT: |
2686 | return INT_FLOAT_CONVERSION_BADNESS; | |
2687 | default: | |
2688 | return INCOMPATIBLE_TYPE_BADNESS; | |
2689 | } | |
2690 | break; | |
2691 | case TYPE_CODE_CHAR: | |
2692 | switch (TYPE_CODE (arg)) | |
2693 | { | |
2694 | case TYPE_CODE_RANGE: | |
2695 | case TYPE_CODE_BOOL: | |
2696 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2697 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2698 | case TYPE_CODE_FLT: |
2699 | return INT_FLOAT_CONVERSION_BADNESS; | |
2700 | case TYPE_CODE_INT: | |
2701 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
1c5cb38e | 2702 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2703 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) |
2704 | return INTEGER_PROMOTION_BADNESS; | |
2705 | /* >>> !! else fall through !! <<< */ | |
2706 | case TYPE_CODE_CHAR: | |
7ba81444 MS |
2707 | /* Deal with signed, unsigned, and plain chars for C++ and |
2708 | with int cases falling through from previous case. */ | |
c5aa993b JM |
2709 | if (TYPE_NOSIGN (parm)) |
2710 | { | |
2711 | if (TYPE_NOSIGN (arg)) | |
6403aeea | 2712 | return EXACT_MATCH_BADNESS; |
c5aa993b | 2713 | else |
1c5cb38e | 2714 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2715 | } |
2716 | else if (TYPE_UNSIGNED (parm)) | |
2717 | { | |
2718 | if (TYPE_UNSIGNED (arg)) | |
6403aeea | 2719 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
2720 | else |
2721 | return INTEGER_PROMOTION_BADNESS; | |
2722 | } | |
2723 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
6403aeea | 2724 | return EXACT_MATCH_BADNESS; |
c5aa993b | 2725 | else |
1c5cb38e | 2726 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2727 | default: |
2728 | return INCOMPATIBLE_TYPE_BADNESS; | |
2729 | } | |
2730 | break; | |
2731 | case TYPE_CODE_RANGE: | |
2732 | switch (TYPE_CODE (arg)) | |
2733 | { | |
2734 | case TYPE_CODE_INT: | |
2735 | case TYPE_CODE_CHAR: | |
2736 | case TYPE_CODE_RANGE: | |
2737 | case TYPE_CODE_BOOL: | |
2738 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2739 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2740 | case TYPE_CODE_FLT: |
2741 | return INT_FLOAT_CONVERSION_BADNESS; | |
2742 | default: | |
2743 | return INCOMPATIBLE_TYPE_BADNESS; | |
2744 | } | |
2745 | break; | |
2746 | case TYPE_CODE_BOOL: | |
2747 | switch (TYPE_CODE (arg)) | |
2748 | { | |
5b4f6e25 KS |
2749 | /* n3290 draft, section 4.12.1 (conv.bool): |
2750 | ||
2751 | "A prvalue of arithmetic, unscoped enumeration, pointer, or | |
2752 | pointer to member type can be converted to a prvalue of type | |
2753 | bool. A zero value, null pointer value, or null member pointer | |
2754 | value is converted to false; any other value is converted to | |
2755 | true. A prvalue of type std::nullptr_t can be converted to a | |
2756 | prvalue of type bool; the resulting value is false." */ | |
c5aa993b JM |
2757 | case TYPE_CODE_INT: |
2758 | case TYPE_CODE_CHAR: | |
c5aa993b JM |
2759 | case TYPE_CODE_ENUM: |
2760 | case TYPE_CODE_FLT: | |
5b4f6e25 | 2761 | case TYPE_CODE_MEMBERPTR: |
c5aa993b | 2762 | case TYPE_CODE_PTR: |
5b4f6e25 KS |
2763 | return BOOL_CONVERSION_BADNESS; |
2764 | case TYPE_CODE_RANGE: | |
2765 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 2766 | case TYPE_CODE_BOOL: |
6403aeea | 2767 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
2768 | default: |
2769 | return INCOMPATIBLE_TYPE_BADNESS; | |
2770 | } | |
2771 | break; | |
2772 | case TYPE_CODE_FLT: | |
2773 | switch (TYPE_CODE (arg)) | |
2774 | { | |
2775 | case TYPE_CODE_FLT: | |
2776 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2777 | return FLOAT_PROMOTION_BADNESS; | |
2778 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
6403aeea | 2779 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
2780 | else |
2781 | return FLOAT_CONVERSION_BADNESS; | |
2782 | case TYPE_CODE_INT: | |
2783 | case TYPE_CODE_BOOL: | |
2784 | case TYPE_CODE_ENUM: | |
2785 | case TYPE_CODE_RANGE: | |
2786 | case TYPE_CODE_CHAR: | |
2787 | return INT_FLOAT_CONVERSION_BADNESS; | |
2788 | default: | |
2789 | return INCOMPATIBLE_TYPE_BADNESS; | |
2790 | } | |
2791 | break; | |
2792 | case TYPE_CODE_COMPLEX: | |
2793 | switch (TYPE_CODE (arg)) | |
7ba81444 | 2794 | { /* Strictly not needed for C++, but... */ |
c5aa993b JM |
2795 | case TYPE_CODE_FLT: |
2796 | return FLOAT_PROMOTION_BADNESS; | |
2797 | case TYPE_CODE_COMPLEX: | |
6403aeea | 2798 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
2799 | default: |
2800 | return INCOMPATIBLE_TYPE_BADNESS; | |
2801 | } | |
2802 | break; | |
2803 | case TYPE_CODE_STRUCT: | |
0963b4bd | 2804 | /* currently same as TYPE_CODE_CLASS. */ |
c5aa993b JM |
2805 | switch (TYPE_CODE (arg)) |
2806 | { | |
2807 | case TYPE_CODE_STRUCT: | |
2808 | /* Check for derivation */ | |
a9d5ef47 SW |
2809 | rank.subrank = distance_to_ancestor (parm, arg, 0); |
2810 | if (rank.subrank >= 0) | |
2811 | return sum_ranks (BASE_CONVERSION_BADNESS, rank); | |
c5aa993b JM |
2812 | /* else fall through */ |
2813 | default: | |
2814 | return INCOMPATIBLE_TYPE_BADNESS; | |
2815 | } | |
2816 | break; | |
2817 | case TYPE_CODE_UNION: | |
2818 | switch (TYPE_CODE (arg)) | |
2819 | { | |
2820 | case TYPE_CODE_UNION: | |
2821 | default: | |
2822 | return INCOMPATIBLE_TYPE_BADNESS; | |
2823 | } | |
2824 | break; | |
0d5de010 | 2825 | case TYPE_CODE_MEMBERPTR: |
c5aa993b JM |
2826 | switch (TYPE_CODE (arg)) |
2827 | { | |
2828 | default: | |
2829 | return INCOMPATIBLE_TYPE_BADNESS; | |
2830 | } | |
2831 | break; | |
2832 | case TYPE_CODE_METHOD: | |
2833 | switch (TYPE_CODE (arg)) | |
2834 | { | |
2835 | ||
2836 | default: | |
2837 | return INCOMPATIBLE_TYPE_BADNESS; | |
2838 | } | |
2839 | break; | |
2840 | case TYPE_CODE_REF: | |
2841 | switch (TYPE_CODE (arg)) | |
2842 | { | |
2843 | ||
2844 | default: | |
2845 | return INCOMPATIBLE_TYPE_BADNESS; | |
2846 | } | |
2847 | ||
2848 | break; | |
2849 | case TYPE_CODE_SET: | |
2850 | switch (TYPE_CODE (arg)) | |
2851 | { | |
2852 | /* Not in C++ */ | |
2853 | case TYPE_CODE_SET: | |
7ba81444 | 2854 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), |
da096638 | 2855 | TYPE_FIELD_TYPE (arg, 0), NULL); |
c5aa993b JM |
2856 | default: |
2857 | return INCOMPATIBLE_TYPE_BADNESS; | |
2858 | } | |
2859 | break; | |
2860 | case TYPE_CODE_VOID: | |
2861 | default: | |
2862 | return INCOMPATIBLE_TYPE_BADNESS; | |
2863 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
2864 | } |
2865 | ||
0963b4bd | 2866 | /* End of functions for overload resolution. */ |
5212577a DE |
2867 | \f |
2868 | /* Routines to pretty-print types. */ | |
c906108c | 2869 | |
c906108c | 2870 | static void |
fba45db2 | 2871 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
2872 | { |
2873 | int bitno; | |
2874 | ||
2875 | for (bitno = 0; bitno < nbits; bitno++) | |
2876 | { | |
2877 | if ((bitno % 8) == 0) | |
2878 | { | |
2879 | puts_filtered (" "); | |
2880 | } | |
2881 | if (B_TST (bits, bitno)) | |
a3f17187 | 2882 | printf_filtered (("1")); |
c906108c | 2883 | else |
a3f17187 | 2884 | printf_filtered (("0")); |
c906108c SS |
2885 | } |
2886 | } | |
2887 | ||
ad2f7632 | 2888 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
2889 | include it since we may get into a infinitely recursive |
2890 | situation. */ | |
c906108c SS |
2891 | |
2892 | static void | |
ad2f7632 | 2893 | print_arg_types (struct field *args, int nargs, int spaces) |
c906108c SS |
2894 | { |
2895 | if (args != NULL) | |
2896 | { | |
ad2f7632 DJ |
2897 | int i; |
2898 | ||
2899 | for (i = 0; i < nargs; i++) | |
2900 | recursive_dump_type (args[i].type, spaces + 2); | |
c906108c SS |
2901 | } |
2902 | } | |
2903 | ||
d6a843b5 JK |
2904 | int |
2905 | field_is_static (struct field *f) | |
2906 | { | |
2907 | /* "static" fields are the fields whose location is not relative | |
2908 | to the address of the enclosing struct. It would be nice to | |
2909 | have a dedicated flag that would be set for static fields when | |
2910 | the type is being created. But in practice, checking the field | |
254e6b9e | 2911 | loc_kind should give us an accurate answer. */ |
d6a843b5 JK |
2912 | return (FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSNAME |
2913 | || FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSADDR); | |
2914 | } | |
2915 | ||
c906108c | 2916 | static void |
fba45db2 | 2917 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
2918 | { |
2919 | int method_idx; | |
2920 | int overload_idx; | |
2921 | struct fn_field *f; | |
2922 | ||
2923 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 2924 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
2925 | printf_filtered ("\n"); |
2926 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
2927 | { | |
2928 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
2929 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
2930 | method_idx, | |
2931 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
2932 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
2933 | gdb_stdout); | |
a3f17187 | 2934 | printf_filtered (_(") length %d\n"), |
c906108c SS |
2935 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
2936 | for (overload_idx = 0; | |
2937 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
2938 | overload_idx++) | |
2939 | { | |
2940 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
2941 | overload_idx, | |
2942 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
2943 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
2944 | gdb_stdout); | |
c906108c SS |
2945 | printf_filtered (")\n"); |
2946 | printfi_filtered (spaces + 8, "type "); | |
7ba81444 MS |
2947 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
2948 | gdb_stdout); | |
c906108c SS |
2949 | printf_filtered ("\n"); |
2950 | ||
2951 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
2952 | spaces + 8 + 2); | |
2953 | ||
2954 | printfi_filtered (spaces + 8, "args "); | |
7ba81444 MS |
2955 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
2956 | gdb_stdout); | |
c906108c SS |
2957 | printf_filtered ("\n"); |
2958 | ||
ad2f7632 | 2959 | print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), |
7ba81444 MS |
2960 | TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, |
2961 | overload_idx)), | |
ad2f7632 | 2962 | spaces); |
c906108c | 2963 | printfi_filtered (spaces + 8, "fcontext "); |
d4f3574e SS |
2964 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
2965 | gdb_stdout); | |
c906108c SS |
2966 | printf_filtered ("\n"); |
2967 | ||
2968 | printfi_filtered (spaces + 8, "is_const %d\n", | |
2969 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
2970 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
2971 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
2972 | printfi_filtered (spaces + 8, "is_private %d\n", | |
2973 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
2974 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
2975 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
2976 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
2977 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
2978 | printfi_filtered (spaces + 8, "voffset %u\n", | |
2979 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
2980 | } | |
2981 | } | |
2982 | } | |
2983 | ||
2984 | static void | |
fba45db2 | 2985 | print_cplus_stuff (struct type *type, int spaces) |
c906108c SS |
2986 | { |
2987 | printfi_filtered (spaces, "n_baseclasses %d\n", | |
2988 | TYPE_N_BASECLASSES (type)); | |
2989 | printfi_filtered (spaces, "nfn_fields %d\n", | |
2990 | TYPE_NFN_FIELDS (type)); | |
c906108c SS |
2991 | if (TYPE_N_BASECLASSES (type) > 0) |
2992 | { | |
2993 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
2994 | TYPE_N_BASECLASSES (type)); | |
7ba81444 MS |
2995 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
2996 | gdb_stdout); | |
c906108c SS |
2997 | printf_filtered (")"); |
2998 | ||
2999 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
3000 | TYPE_N_BASECLASSES (type)); | |
3001 | puts_filtered ("\n"); | |
3002 | } | |
3003 | if (TYPE_NFIELDS (type) > 0) | |
3004 | { | |
3005 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
3006 | { | |
7ba81444 MS |
3007 | printfi_filtered (spaces, |
3008 | "private_field_bits (%d bits at *", | |
c906108c | 3009 | TYPE_NFIELDS (type)); |
7ba81444 MS |
3010 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
3011 | gdb_stdout); | |
c906108c SS |
3012 | printf_filtered (")"); |
3013 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
3014 | TYPE_NFIELDS (type)); | |
3015 | puts_filtered ("\n"); | |
3016 | } | |
3017 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
3018 | { | |
7ba81444 MS |
3019 | printfi_filtered (spaces, |
3020 | "protected_field_bits (%d bits at *", | |
c906108c | 3021 | TYPE_NFIELDS (type)); |
7ba81444 MS |
3022 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
3023 | gdb_stdout); | |
c906108c SS |
3024 | printf_filtered (")"); |
3025 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
3026 | TYPE_NFIELDS (type)); | |
3027 | puts_filtered ("\n"); | |
3028 | } | |
3029 | } | |
3030 | if (TYPE_NFN_FIELDS (type) > 0) | |
3031 | { | |
3032 | dump_fn_fieldlists (type, spaces); | |
3033 | } | |
3034 | } | |
3035 | ||
b4ba55a1 JB |
3036 | /* Print the contents of the TYPE's type_specific union, assuming that |
3037 | its type-specific kind is TYPE_SPECIFIC_GNAT_STUFF. */ | |
3038 | ||
3039 | static void | |
3040 | print_gnat_stuff (struct type *type, int spaces) | |
3041 | { | |
3042 | struct type *descriptive_type = TYPE_DESCRIPTIVE_TYPE (type); | |
3043 | ||
3044 | recursive_dump_type (descriptive_type, spaces + 2); | |
3045 | } | |
3046 | ||
c906108c SS |
3047 | static struct obstack dont_print_type_obstack; |
3048 | ||
3049 | void | |
fba45db2 | 3050 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
3051 | { |
3052 | int idx; | |
3053 | ||
3054 | if (spaces == 0) | |
3055 | obstack_begin (&dont_print_type_obstack, 0); | |
3056 | ||
3057 | if (TYPE_NFIELDS (type) > 0 | |
b4ba55a1 | 3058 | || (HAVE_CPLUS_STRUCT (type) && TYPE_NFN_FIELDS (type) > 0)) |
c906108c SS |
3059 | { |
3060 | struct type **first_dont_print | |
7ba81444 | 3061 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 3062 | |
7ba81444 MS |
3063 | int i = (struct type **) |
3064 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
3065 | |
3066 | while (--i >= 0) | |
3067 | { | |
3068 | if (type == first_dont_print[i]) | |
3069 | { | |
3070 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 3071 | gdb_print_host_address (type, gdb_stdout); |
a3f17187 | 3072 | printf_filtered (_(" <same as already seen type>\n")); |
c906108c SS |
3073 | return; |
3074 | } | |
3075 | } | |
3076 | ||
3077 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
3078 | } | |
3079 | ||
3080 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 3081 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
3082 | printf_filtered ("\n"); |
3083 | printfi_filtered (spaces, "name '%s' (", | |
3084 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 3085 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c | 3086 | printf_filtered (")\n"); |
e9e79dd9 FF |
3087 | printfi_filtered (spaces, "tagname '%s' (", |
3088 | TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>"); | |
3089 | gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); | |
3090 | printf_filtered (")\n"); | |
c906108c SS |
3091 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
3092 | switch (TYPE_CODE (type)) | |
3093 | { | |
c5aa993b JM |
3094 | case TYPE_CODE_UNDEF: |
3095 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
3096 | break; | |
3097 | case TYPE_CODE_PTR: | |
3098 | printf_filtered ("(TYPE_CODE_PTR)"); | |
3099 | break; | |
3100 | case TYPE_CODE_ARRAY: | |
3101 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
3102 | break; | |
3103 | case TYPE_CODE_STRUCT: | |
3104 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
3105 | break; | |
3106 | case TYPE_CODE_UNION: | |
3107 | printf_filtered ("(TYPE_CODE_UNION)"); | |
3108 | break; | |
3109 | case TYPE_CODE_ENUM: | |
3110 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
3111 | break; | |
4f2aea11 MK |
3112 | case TYPE_CODE_FLAGS: |
3113 | printf_filtered ("(TYPE_CODE_FLAGS)"); | |
3114 | break; | |
c5aa993b JM |
3115 | case TYPE_CODE_FUNC: |
3116 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
3117 | break; | |
3118 | case TYPE_CODE_INT: | |
3119 | printf_filtered ("(TYPE_CODE_INT)"); | |
3120 | break; | |
3121 | case TYPE_CODE_FLT: | |
3122 | printf_filtered ("(TYPE_CODE_FLT)"); | |
3123 | break; | |
3124 | case TYPE_CODE_VOID: | |
3125 | printf_filtered ("(TYPE_CODE_VOID)"); | |
3126 | break; | |
3127 | case TYPE_CODE_SET: | |
3128 | printf_filtered ("(TYPE_CODE_SET)"); | |
3129 | break; | |
3130 | case TYPE_CODE_RANGE: | |
3131 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
3132 | break; | |
3133 | case TYPE_CODE_STRING: | |
3134 | printf_filtered ("(TYPE_CODE_STRING)"); | |
3135 | break; | |
3136 | case TYPE_CODE_ERROR: | |
3137 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
3138 | break; | |
0d5de010 DJ |
3139 | case TYPE_CODE_MEMBERPTR: |
3140 | printf_filtered ("(TYPE_CODE_MEMBERPTR)"); | |
3141 | break; | |
3142 | case TYPE_CODE_METHODPTR: | |
3143 | printf_filtered ("(TYPE_CODE_METHODPTR)"); | |
c5aa993b JM |
3144 | break; |
3145 | case TYPE_CODE_METHOD: | |
3146 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
3147 | break; | |
3148 | case TYPE_CODE_REF: | |
3149 | printf_filtered ("(TYPE_CODE_REF)"); | |
3150 | break; | |
3151 | case TYPE_CODE_CHAR: | |
3152 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
3153 | break; | |
3154 | case TYPE_CODE_BOOL: | |
3155 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
3156 | break; | |
e9e79dd9 FF |
3157 | case TYPE_CODE_COMPLEX: |
3158 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
3159 | break; | |
c5aa993b JM |
3160 | case TYPE_CODE_TYPEDEF: |
3161 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
3162 | break; | |
5c4e30ca DC |
3163 | case TYPE_CODE_NAMESPACE: |
3164 | printf_filtered ("(TYPE_CODE_NAMESPACE)"); | |
3165 | break; | |
c5aa993b JM |
3166 | default: |
3167 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
3168 | break; | |
c906108c SS |
3169 | } |
3170 | puts_filtered ("\n"); | |
3171 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
e9bb382b UW |
3172 | if (TYPE_OBJFILE_OWNED (type)) |
3173 | { | |
3174 | printfi_filtered (spaces, "objfile "); | |
3175 | gdb_print_host_address (TYPE_OWNER (type).objfile, gdb_stdout); | |
3176 | } | |
3177 | else | |
3178 | { | |
3179 | printfi_filtered (spaces, "gdbarch "); | |
3180 | gdb_print_host_address (TYPE_OWNER (type).gdbarch, gdb_stdout); | |
3181 | } | |
c906108c SS |
3182 | printf_filtered ("\n"); |
3183 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 3184 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
3185 | printf_filtered ("\n"); |
3186 | if (TYPE_TARGET_TYPE (type) != NULL) | |
3187 | { | |
3188 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
3189 | } | |
3190 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 3191 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
3192 | printf_filtered ("\n"); |
3193 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 3194 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 3195 | printf_filtered ("\n"); |
2fdde8f8 DJ |
3196 | printfi_filtered (spaces, "type_chain "); |
3197 | gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); | |
e9e79dd9 | 3198 | printf_filtered ("\n"); |
7ba81444 MS |
3199 | printfi_filtered (spaces, "instance_flags 0x%x", |
3200 | TYPE_INSTANCE_FLAGS (type)); | |
2fdde8f8 DJ |
3201 | if (TYPE_CONST (type)) |
3202 | { | |
3203 | puts_filtered (" TYPE_FLAG_CONST"); | |
3204 | } | |
3205 | if (TYPE_VOLATILE (type)) | |
3206 | { | |
3207 | puts_filtered (" TYPE_FLAG_VOLATILE"); | |
3208 | } | |
3209 | if (TYPE_CODE_SPACE (type)) | |
3210 | { | |
3211 | puts_filtered (" TYPE_FLAG_CODE_SPACE"); | |
3212 | } | |
3213 | if (TYPE_DATA_SPACE (type)) | |
3214 | { | |
3215 | puts_filtered (" TYPE_FLAG_DATA_SPACE"); | |
3216 | } | |
8b2dbe47 KB |
3217 | if (TYPE_ADDRESS_CLASS_1 (type)) |
3218 | { | |
3219 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_1"); | |
3220 | } | |
3221 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
3222 | { | |
3223 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_2"); | |
3224 | } | |
06d66ee9 TT |
3225 | if (TYPE_RESTRICT (type)) |
3226 | { | |
3227 | puts_filtered (" TYPE_FLAG_RESTRICT"); | |
3228 | } | |
2fdde8f8 | 3229 | puts_filtered ("\n"); |
876cecd0 TT |
3230 | |
3231 | printfi_filtered (spaces, "flags"); | |
762a036f | 3232 | if (TYPE_UNSIGNED (type)) |
c906108c SS |
3233 | { |
3234 | puts_filtered (" TYPE_FLAG_UNSIGNED"); | |
3235 | } | |
762a036f FF |
3236 | if (TYPE_NOSIGN (type)) |
3237 | { | |
3238 | puts_filtered (" TYPE_FLAG_NOSIGN"); | |
3239 | } | |
3240 | if (TYPE_STUB (type)) | |
c906108c SS |
3241 | { |
3242 | puts_filtered (" TYPE_FLAG_STUB"); | |
3243 | } | |
762a036f FF |
3244 | if (TYPE_TARGET_STUB (type)) |
3245 | { | |
3246 | puts_filtered (" TYPE_FLAG_TARGET_STUB"); | |
3247 | } | |
3248 | if (TYPE_STATIC (type)) | |
3249 | { | |
3250 | puts_filtered (" TYPE_FLAG_STATIC"); | |
3251 | } | |
762a036f FF |
3252 | if (TYPE_PROTOTYPED (type)) |
3253 | { | |
3254 | puts_filtered (" TYPE_FLAG_PROTOTYPED"); | |
3255 | } | |
3256 | if (TYPE_INCOMPLETE (type)) | |
3257 | { | |
3258 | puts_filtered (" TYPE_FLAG_INCOMPLETE"); | |
3259 | } | |
762a036f FF |
3260 | if (TYPE_VARARGS (type)) |
3261 | { | |
3262 | puts_filtered (" TYPE_FLAG_VARARGS"); | |
3263 | } | |
f5f8a009 EZ |
3264 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
3265 | an attribute for the array type, which tells whether or not we | |
3266 | have a vector, instead of a regular array. */ | |
3267 | if (TYPE_VECTOR (type)) | |
3268 | { | |
3269 | puts_filtered (" TYPE_FLAG_VECTOR"); | |
3270 | } | |
876cecd0 TT |
3271 | if (TYPE_FIXED_INSTANCE (type)) |
3272 | { | |
3273 | puts_filtered (" TYPE_FIXED_INSTANCE"); | |
3274 | } | |
3275 | if (TYPE_STUB_SUPPORTED (type)) | |
3276 | { | |
3277 | puts_filtered (" TYPE_STUB_SUPPORTED"); | |
3278 | } | |
3279 | if (TYPE_NOTTEXT (type)) | |
3280 | { | |
3281 | puts_filtered (" TYPE_NOTTEXT"); | |
3282 | } | |
c906108c SS |
3283 | puts_filtered ("\n"); |
3284 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 3285 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
3286 | puts_filtered ("\n"); |
3287 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
3288 | { | |
14e75d8e JK |
3289 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) |
3290 | printfi_filtered (spaces + 2, | |
3291 | "[%d] enumval %s type ", | |
3292 | idx, plongest (TYPE_FIELD_ENUMVAL (type, idx))); | |
3293 | else | |
3294 | printfi_filtered (spaces + 2, | |
3295 | "[%d] bitpos %d bitsize %d type ", | |
3296 | idx, TYPE_FIELD_BITPOS (type, idx), | |
3297 | TYPE_FIELD_BITSIZE (type, idx)); | |
d4f3574e | 3298 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
3299 | printf_filtered (" name '%s' (", |
3300 | TYPE_FIELD_NAME (type, idx) != NULL | |
3301 | ? TYPE_FIELD_NAME (type, idx) | |
3302 | : "<NULL>"); | |
d4f3574e | 3303 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
3304 | printf_filtered (")\n"); |
3305 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
3306 | { | |
3307 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
3308 | } | |
3309 | } | |
43bbcdc2 PH |
3310 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
3311 | { | |
3312 | printfi_filtered (spaces, "low %s%s high %s%s\n", | |
3313 | plongest (TYPE_LOW_BOUND (type)), | |
3314 | TYPE_LOW_BOUND_UNDEFINED (type) ? " (undefined)" : "", | |
3315 | plongest (TYPE_HIGH_BOUND (type)), | |
3e43a32a MS |
3316 | TYPE_HIGH_BOUND_UNDEFINED (type) |
3317 | ? " (undefined)" : ""); | |
43bbcdc2 | 3318 | } |
c906108c | 3319 | printfi_filtered (spaces, "vptr_basetype "); |
d4f3574e | 3320 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); |
c906108c SS |
3321 | puts_filtered ("\n"); |
3322 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
3323 | { | |
3324 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
3325 | } | |
7ba81444 MS |
3326 | printfi_filtered (spaces, "vptr_fieldno %d\n", |
3327 | TYPE_VPTR_FIELDNO (type)); | |
c906108c | 3328 | |
b4ba55a1 JB |
3329 | switch (TYPE_SPECIFIC_FIELD (type)) |
3330 | { | |
3331 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
3332 | printfi_filtered (spaces, "cplus_stuff "); | |
3333 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), | |
3334 | gdb_stdout); | |
3335 | puts_filtered ("\n"); | |
3336 | print_cplus_stuff (type, spaces); | |
3337 | break; | |
8da61cc4 | 3338 | |
b4ba55a1 JB |
3339 | case TYPE_SPECIFIC_GNAT_STUFF: |
3340 | printfi_filtered (spaces, "gnat_stuff "); | |
3341 | gdb_print_host_address (TYPE_GNAT_SPECIFIC (type), gdb_stdout); | |
3342 | puts_filtered ("\n"); | |
3343 | print_gnat_stuff (type, spaces); | |
3344 | break; | |
701c159d | 3345 | |
b4ba55a1 JB |
3346 | case TYPE_SPECIFIC_FLOATFORMAT: |
3347 | printfi_filtered (spaces, "floatformat "); | |
3348 | if (TYPE_FLOATFORMAT (type) == NULL) | |
3349 | puts_filtered ("(null)"); | |
3350 | else | |
3351 | { | |
3352 | puts_filtered ("{ "); | |
3353 | if (TYPE_FLOATFORMAT (type)[0] == NULL | |
3354 | || TYPE_FLOATFORMAT (type)[0]->name == NULL) | |
3355 | puts_filtered ("(null)"); | |
3356 | else | |
3357 | puts_filtered (TYPE_FLOATFORMAT (type)[0]->name); | |
3358 | ||
3359 | puts_filtered (", "); | |
3360 | if (TYPE_FLOATFORMAT (type)[1] == NULL | |
3361 | || TYPE_FLOATFORMAT (type)[1]->name == NULL) | |
3362 | puts_filtered ("(null)"); | |
3363 | else | |
3364 | puts_filtered (TYPE_FLOATFORMAT (type)[1]->name); | |
3365 | ||
3366 | puts_filtered (" }"); | |
3367 | } | |
3368 | puts_filtered ("\n"); | |
3369 | break; | |
c906108c | 3370 | |
b6cdc2c1 | 3371 | case TYPE_SPECIFIC_FUNC: |
b4ba55a1 JB |
3372 | printfi_filtered (spaces, "calling_convention %d\n", |
3373 | TYPE_CALLING_CONVENTION (type)); | |
b6cdc2c1 | 3374 | /* tail_call_list is not printed. */ |
b4ba55a1 | 3375 | break; |
c906108c | 3376 | } |
b4ba55a1 | 3377 | |
c906108c SS |
3378 | if (spaces == 0) |
3379 | obstack_free (&dont_print_type_obstack, NULL); | |
3380 | } | |
5212577a | 3381 | \f |
ae5a43e0 DJ |
3382 | /* Trivial helpers for the libiberty hash table, for mapping one |
3383 | type to another. */ | |
3384 | ||
3385 | struct type_pair | |
3386 | { | |
3387 | struct type *old, *new; | |
3388 | }; | |
3389 | ||
3390 | static hashval_t | |
3391 | type_pair_hash (const void *item) | |
3392 | { | |
3393 | const struct type_pair *pair = item; | |
d8734c88 | 3394 | |
ae5a43e0 DJ |
3395 | return htab_hash_pointer (pair->old); |
3396 | } | |
3397 | ||
3398 | static int | |
3399 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
3400 | { | |
3401 | const struct type_pair *lhs = item_lhs, *rhs = item_rhs; | |
d8734c88 | 3402 | |
ae5a43e0 DJ |
3403 | return lhs->old == rhs->old; |
3404 | } | |
3405 | ||
3406 | /* Allocate the hash table used by copy_type_recursive to walk | |
3407 | types without duplicates. We use OBJFILE's obstack, because | |
3408 | OBJFILE is about to be deleted. */ | |
3409 | ||
3410 | htab_t | |
3411 | create_copied_types_hash (struct objfile *objfile) | |
3412 | { | |
3413 | return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, | |
3414 | NULL, &objfile->objfile_obstack, | |
3415 | hashtab_obstack_allocate, | |
3416 | dummy_obstack_deallocate); | |
3417 | } | |
3418 | ||
7ba81444 MS |
3419 | /* Recursively copy (deep copy) TYPE, if it is associated with |
3420 | OBJFILE. Return a new type allocated using malloc, a saved type if | |
3421 | we have already visited TYPE (using COPIED_TYPES), or TYPE if it is | |
3422 | not associated with OBJFILE. */ | |
ae5a43e0 DJ |
3423 | |
3424 | struct type * | |
7ba81444 MS |
3425 | copy_type_recursive (struct objfile *objfile, |
3426 | struct type *type, | |
ae5a43e0 DJ |
3427 | htab_t copied_types) |
3428 | { | |
3429 | struct type_pair *stored, pair; | |
3430 | void **slot; | |
3431 | struct type *new_type; | |
3432 | ||
e9bb382b | 3433 | if (! TYPE_OBJFILE_OWNED (type)) |
ae5a43e0 DJ |
3434 | return type; |
3435 | ||
7ba81444 MS |
3436 | /* This type shouldn't be pointing to any types in other objfiles; |
3437 | if it did, the type might disappear unexpectedly. */ | |
ae5a43e0 DJ |
3438 | gdb_assert (TYPE_OBJFILE (type) == objfile); |
3439 | ||
3440 | pair.old = type; | |
3441 | slot = htab_find_slot (copied_types, &pair, INSERT); | |
3442 | if (*slot != NULL) | |
3443 | return ((struct type_pair *) *slot)->new; | |
3444 | ||
e9bb382b | 3445 | new_type = alloc_type_arch (get_type_arch (type)); |
ae5a43e0 DJ |
3446 | |
3447 | /* We must add the new type to the hash table immediately, in case | |
3448 | we encounter this type again during a recursive call below. */ | |
3e43a32a MS |
3449 | stored |
3450 | = obstack_alloc (&objfile->objfile_obstack, sizeof (struct type_pair)); | |
ae5a43e0 DJ |
3451 | stored->old = type; |
3452 | stored->new = new_type; | |
3453 | *slot = stored; | |
3454 | ||
876cecd0 TT |
3455 | /* Copy the common fields of types. For the main type, we simply |
3456 | copy the entire thing and then update specific fields as needed. */ | |
3457 | *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type); | |
e9bb382b UW |
3458 | TYPE_OBJFILE_OWNED (new_type) = 0; |
3459 | TYPE_OWNER (new_type).gdbarch = get_type_arch (type); | |
876cecd0 | 3460 | |
ae5a43e0 DJ |
3461 | if (TYPE_NAME (type)) |
3462 | TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type)); | |
3463 | if (TYPE_TAG_NAME (type)) | |
3464 | TYPE_TAG_NAME (new_type) = xstrdup (TYPE_TAG_NAME (type)); | |
ae5a43e0 DJ |
3465 | |
3466 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); | |
3467 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
3468 | ||
3469 | /* Copy the fields. */ | |
ae5a43e0 DJ |
3470 | if (TYPE_NFIELDS (type)) |
3471 | { | |
3472 | int i, nfields; | |
3473 | ||
3474 | nfields = TYPE_NFIELDS (type); | |
1deafd4e | 3475 | TYPE_FIELDS (new_type) = XCALLOC (nfields, struct field); |
ae5a43e0 DJ |
3476 | for (i = 0; i < nfields; i++) |
3477 | { | |
7ba81444 MS |
3478 | TYPE_FIELD_ARTIFICIAL (new_type, i) = |
3479 | TYPE_FIELD_ARTIFICIAL (type, i); | |
ae5a43e0 DJ |
3480 | TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
3481 | if (TYPE_FIELD_TYPE (type, i)) | |
3482 | TYPE_FIELD_TYPE (new_type, i) | |
3483 | = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i), | |
3484 | copied_types); | |
3485 | if (TYPE_FIELD_NAME (type, i)) | |
7ba81444 MS |
3486 | TYPE_FIELD_NAME (new_type, i) = |
3487 | xstrdup (TYPE_FIELD_NAME (type, i)); | |
d6a843b5 | 3488 | switch (TYPE_FIELD_LOC_KIND (type, i)) |
ae5a43e0 | 3489 | { |
d6a843b5 JK |
3490 | case FIELD_LOC_KIND_BITPOS: |
3491 | SET_FIELD_BITPOS (TYPE_FIELD (new_type, i), | |
3492 | TYPE_FIELD_BITPOS (type, i)); | |
3493 | break; | |
14e75d8e JK |
3494 | case FIELD_LOC_KIND_ENUMVAL: |
3495 | SET_FIELD_ENUMVAL (TYPE_FIELD (new_type, i), | |
3496 | TYPE_FIELD_ENUMVAL (type, i)); | |
3497 | break; | |
d6a843b5 JK |
3498 | case FIELD_LOC_KIND_PHYSADDR: |
3499 | SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i), | |
3500 | TYPE_FIELD_STATIC_PHYSADDR (type, i)); | |
3501 | break; | |
3502 | case FIELD_LOC_KIND_PHYSNAME: | |
3503 | SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i), | |
3504 | xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, | |
3505 | i))); | |
3506 | break; | |
3507 | default: | |
3508 | internal_error (__FILE__, __LINE__, | |
3509 | _("Unexpected type field location kind: %d"), | |
3510 | TYPE_FIELD_LOC_KIND (type, i)); | |
ae5a43e0 DJ |
3511 | } |
3512 | } | |
3513 | } | |
3514 | ||
0963b4bd | 3515 | /* For range types, copy the bounds information. */ |
43bbcdc2 PH |
3516 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
3517 | { | |
3518 | TYPE_RANGE_DATA (new_type) = xmalloc (sizeof (struct range_bounds)); | |
3519 | *TYPE_RANGE_DATA (new_type) = *TYPE_RANGE_DATA (type); | |
3520 | } | |
3521 | ||
ae5a43e0 DJ |
3522 | /* Copy pointers to other types. */ |
3523 | if (TYPE_TARGET_TYPE (type)) | |
7ba81444 MS |
3524 | TYPE_TARGET_TYPE (new_type) = |
3525 | copy_type_recursive (objfile, | |
3526 | TYPE_TARGET_TYPE (type), | |
3527 | copied_types); | |
ae5a43e0 | 3528 | if (TYPE_VPTR_BASETYPE (type)) |
7ba81444 MS |
3529 | TYPE_VPTR_BASETYPE (new_type) = |
3530 | copy_type_recursive (objfile, | |
3531 | TYPE_VPTR_BASETYPE (type), | |
3532 | copied_types); | |
ae5a43e0 DJ |
3533 | /* Maybe copy the type_specific bits. |
3534 | ||
3535 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
3536 | base classes and methods. There's no fundamental reason why we | |
3537 | can't, but at the moment it is not needed. */ | |
3538 | ||
3539 | if (TYPE_CODE (type) == TYPE_CODE_FLT) | |
d5d6fca5 | 3540 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); |
ae5a43e0 DJ |
3541 | else if (TYPE_CODE (type) == TYPE_CODE_STRUCT |
3542 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
ae5a43e0 DJ |
3543 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) |
3544 | INIT_CPLUS_SPECIFIC (new_type); | |
3545 | ||
3546 | return new_type; | |
3547 | } | |
3548 | ||
4af88198 JB |
3549 | /* Make a copy of the given TYPE, except that the pointer & reference |
3550 | types are not preserved. | |
3551 | ||
3552 | This function assumes that the given type has an associated objfile. | |
3553 | This objfile is used to allocate the new type. */ | |
3554 | ||
3555 | struct type * | |
3556 | copy_type (const struct type *type) | |
3557 | { | |
3558 | struct type *new_type; | |
3559 | ||
e9bb382b | 3560 | gdb_assert (TYPE_OBJFILE_OWNED (type)); |
4af88198 | 3561 | |
e9bb382b | 3562 | new_type = alloc_type_copy (type); |
4af88198 JB |
3563 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); |
3564 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
3565 | memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type), | |
3566 | sizeof (struct main_type)); | |
3567 | ||
3568 | return new_type; | |
3569 | } | |
5212577a | 3570 | \f |
e9bb382b UW |
3571 | /* Helper functions to initialize architecture-specific types. */ |
3572 | ||
3573 | /* Allocate a type structure associated with GDBARCH and set its | |
3574 | CODE, LENGTH, and NAME fields. */ | |
5212577a | 3575 | |
e9bb382b UW |
3576 | struct type * |
3577 | arch_type (struct gdbarch *gdbarch, | |
3578 | enum type_code code, int length, char *name) | |
3579 | { | |
3580 | struct type *type; | |
3581 | ||
3582 | type = alloc_type_arch (gdbarch); | |
3583 | TYPE_CODE (type) = code; | |
3584 | TYPE_LENGTH (type) = length; | |
3585 | ||
3586 | if (name) | |
3587 | TYPE_NAME (type) = xstrdup (name); | |
3588 | ||
3589 | return type; | |
3590 | } | |
3591 | ||
3592 | /* Allocate a TYPE_CODE_INT type structure associated with GDBARCH. | |
3593 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3594 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 3595 | |
e9bb382b UW |
3596 | struct type * |
3597 | arch_integer_type (struct gdbarch *gdbarch, | |
3598 | int bit, int unsigned_p, char *name) | |
3599 | { | |
3600 | struct type *t; | |
3601 | ||
3602 | t = arch_type (gdbarch, TYPE_CODE_INT, bit / TARGET_CHAR_BIT, name); | |
3603 | if (unsigned_p) | |
3604 | TYPE_UNSIGNED (t) = 1; | |
3605 | if (name && strcmp (name, "char") == 0) | |
3606 | TYPE_NOSIGN (t) = 1; | |
3607 | ||
3608 | return t; | |
3609 | } | |
3610 | ||
3611 | /* Allocate a TYPE_CODE_CHAR type structure associated with GDBARCH. | |
3612 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3613 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 3614 | |
e9bb382b UW |
3615 | struct type * |
3616 | arch_character_type (struct gdbarch *gdbarch, | |
3617 | int bit, int unsigned_p, char *name) | |
3618 | { | |
3619 | struct type *t; | |
3620 | ||
3621 | t = arch_type (gdbarch, TYPE_CODE_CHAR, bit / TARGET_CHAR_BIT, name); | |
3622 | if (unsigned_p) | |
3623 | TYPE_UNSIGNED (t) = 1; | |
3624 | ||
3625 | return t; | |
3626 | } | |
3627 | ||
3628 | /* Allocate a TYPE_CODE_BOOL type structure associated with GDBARCH. | |
3629 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3630 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 3631 | |
e9bb382b UW |
3632 | struct type * |
3633 | arch_boolean_type (struct gdbarch *gdbarch, | |
3634 | int bit, int unsigned_p, char *name) | |
3635 | { | |
3636 | struct type *t; | |
3637 | ||
3638 | t = arch_type (gdbarch, TYPE_CODE_BOOL, bit / TARGET_CHAR_BIT, name); | |
3639 | if (unsigned_p) | |
3640 | TYPE_UNSIGNED (t) = 1; | |
3641 | ||
3642 | return t; | |
3643 | } | |
3644 | ||
3645 | /* Allocate a TYPE_CODE_FLT type structure associated with GDBARCH. | |
3646 | BIT is the type size in bits; if BIT equals -1, the size is | |
3647 | determined by the floatformat. NAME is the type name. Set the | |
3648 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
5212577a | 3649 | |
27067745 | 3650 | struct type * |
e9bb382b UW |
3651 | arch_float_type (struct gdbarch *gdbarch, |
3652 | int bit, char *name, const struct floatformat **floatformats) | |
8da61cc4 DJ |
3653 | { |
3654 | struct type *t; | |
3655 | ||
3656 | if (bit == -1) | |
3657 | { | |
3658 | gdb_assert (floatformats != NULL); | |
3659 | gdb_assert (floatformats[0] != NULL && floatformats[1] != NULL); | |
3660 | bit = floatformats[0]->totalsize; | |
3661 | } | |
3662 | gdb_assert (bit >= 0); | |
3663 | ||
e9bb382b | 3664 | t = arch_type (gdbarch, TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, name); |
8da61cc4 DJ |
3665 | TYPE_FLOATFORMAT (t) = floatformats; |
3666 | return t; | |
3667 | } | |
3668 | ||
e9bb382b UW |
3669 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with GDBARCH. |
3670 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
5212577a | 3671 | |
27067745 | 3672 | struct type * |
e9bb382b UW |
3673 | arch_complex_type (struct gdbarch *gdbarch, |
3674 | char *name, struct type *target_type) | |
27067745 UW |
3675 | { |
3676 | struct type *t; | |
d8734c88 | 3677 | |
e9bb382b UW |
3678 | t = arch_type (gdbarch, TYPE_CODE_COMPLEX, |
3679 | 2 * TYPE_LENGTH (target_type), name); | |
27067745 UW |
3680 | TYPE_TARGET_TYPE (t) = target_type; |
3681 | return t; | |
3682 | } | |
3683 | ||
e9bb382b | 3684 | /* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH. |
eb90ce83 | 3685 | NAME is the type name. LENGTH is the size of the flag word in bytes. */ |
5212577a | 3686 | |
e9bb382b UW |
3687 | struct type * |
3688 | arch_flags_type (struct gdbarch *gdbarch, char *name, int length) | |
3689 | { | |
3690 | int nfields = length * TARGET_CHAR_BIT; | |
3691 | struct type *type; | |
3692 | ||
3693 | type = arch_type (gdbarch, TYPE_CODE_FLAGS, length, name); | |
3694 | TYPE_UNSIGNED (type) = 1; | |
3695 | TYPE_NFIELDS (type) = nfields; | |
3696 | TYPE_FIELDS (type) = TYPE_ZALLOC (type, nfields * sizeof (struct field)); | |
3697 | ||
3698 | return type; | |
3699 | } | |
3700 | ||
3701 | /* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
3702 | position BITPOS is called NAME. */ | |
5212577a | 3703 | |
e9bb382b UW |
3704 | void |
3705 | append_flags_type_flag (struct type *type, int bitpos, char *name) | |
3706 | { | |
3707 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS); | |
3708 | gdb_assert (bitpos < TYPE_NFIELDS (type)); | |
3709 | gdb_assert (bitpos >= 0); | |
3710 | ||
3711 | if (name) | |
3712 | { | |
3713 | TYPE_FIELD_NAME (type, bitpos) = xstrdup (name); | |
945b3a32 | 3714 | SET_FIELD_BITPOS (TYPE_FIELD (type, bitpos), bitpos); |
e9bb382b UW |
3715 | } |
3716 | else | |
3717 | { | |
3718 | /* Don't show this field to the user. */ | |
945b3a32 | 3719 | SET_FIELD_BITPOS (TYPE_FIELD (type, bitpos), -1); |
e9bb382b UW |
3720 | } |
3721 | } | |
3722 | ||
3723 | /* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as | |
3724 | specified by CODE) associated with GDBARCH. NAME is the type name. */ | |
5212577a | 3725 | |
e9bb382b UW |
3726 | struct type * |
3727 | arch_composite_type (struct gdbarch *gdbarch, char *name, enum type_code code) | |
3728 | { | |
3729 | struct type *t; | |
d8734c88 | 3730 | |
e9bb382b UW |
3731 | gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION); |
3732 | t = arch_type (gdbarch, code, 0, NULL); | |
3733 | TYPE_TAG_NAME (t) = name; | |
3734 | INIT_CPLUS_SPECIFIC (t); | |
3735 | return t; | |
3736 | } | |
3737 | ||
3738 | /* Add new field with name NAME and type FIELD to composite type T. | |
f5dff777 DJ |
3739 | Do not set the field's position or adjust the type's length; |
3740 | the caller should do so. Return the new field. */ | |
5212577a | 3741 | |
f5dff777 DJ |
3742 | struct field * |
3743 | append_composite_type_field_raw (struct type *t, char *name, | |
3744 | struct type *field) | |
e9bb382b UW |
3745 | { |
3746 | struct field *f; | |
d8734c88 | 3747 | |
e9bb382b UW |
3748 | TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; |
3749 | TYPE_FIELDS (t) = xrealloc (TYPE_FIELDS (t), | |
3750 | sizeof (struct field) * TYPE_NFIELDS (t)); | |
3751 | f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); | |
3752 | memset (f, 0, sizeof f[0]); | |
3753 | FIELD_TYPE (f[0]) = field; | |
3754 | FIELD_NAME (f[0]) = name; | |
f5dff777 DJ |
3755 | return f; |
3756 | } | |
3757 | ||
3758 | /* Add new field with name NAME and type FIELD to composite type T. | |
3759 | ALIGNMENT (if non-zero) specifies the minimum field alignment. */ | |
5212577a | 3760 | |
f5dff777 DJ |
3761 | void |
3762 | append_composite_type_field_aligned (struct type *t, char *name, | |
3763 | struct type *field, int alignment) | |
3764 | { | |
3765 | struct field *f = append_composite_type_field_raw (t, name, field); | |
d8734c88 | 3766 | |
e9bb382b UW |
3767 | if (TYPE_CODE (t) == TYPE_CODE_UNION) |
3768 | { | |
3769 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) | |
3770 | TYPE_LENGTH (t) = TYPE_LENGTH (field); | |
3771 | } | |
3772 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
3773 | { | |
3774 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
3775 | if (TYPE_NFIELDS (t) > 1) | |
3776 | { | |
f41f5e61 PA |
3777 | SET_FIELD_BITPOS (f[0], |
3778 | (FIELD_BITPOS (f[-1]) | |
3779 | + (TYPE_LENGTH (FIELD_TYPE (f[-1])) | |
3780 | * TARGET_CHAR_BIT))); | |
e9bb382b UW |
3781 | |
3782 | if (alignment) | |
3783 | { | |
86c3c1fc AB |
3784 | int left; |
3785 | ||
3786 | alignment *= TARGET_CHAR_BIT; | |
3787 | left = FIELD_BITPOS (f[0]) % alignment; | |
d8734c88 | 3788 | |
e9bb382b UW |
3789 | if (left) |
3790 | { | |
f41f5e61 | 3791 | SET_FIELD_BITPOS (f[0], FIELD_BITPOS (f[0]) + (alignment - left)); |
86c3c1fc | 3792 | TYPE_LENGTH (t) += (alignment - left) / TARGET_CHAR_BIT; |
e9bb382b UW |
3793 | } |
3794 | } | |
3795 | } | |
3796 | } | |
3797 | } | |
3798 | ||
3799 | /* Add new field with name NAME and type FIELD to composite type T. */ | |
5212577a | 3800 | |
e9bb382b UW |
3801 | void |
3802 | append_composite_type_field (struct type *t, char *name, | |
3803 | struct type *field) | |
3804 | { | |
3805 | append_composite_type_field_aligned (t, name, field, 0); | |
3806 | } | |
3807 | ||
000177f0 AC |
3808 | static struct gdbarch_data *gdbtypes_data; |
3809 | ||
3810 | const struct builtin_type * | |
3811 | builtin_type (struct gdbarch *gdbarch) | |
3812 | { | |
3813 | return gdbarch_data (gdbarch, gdbtypes_data); | |
3814 | } | |
3815 | ||
3816 | static void * | |
3817 | gdbtypes_post_init (struct gdbarch *gdbarch) | |
3818 | { | |
3819 | struct builtin_type *builtin_type | |
3820 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); | |
3821 | ||
46bf5051 | 3822 | /* Basic types. */ |
e9bb382b UW |
3823 | builtin_type->builtin_void |
3824 | = arch_type (gdbarch, TYPE_CODE_VOID, 1, "void"); | |
3825 | builtin_type->builtin_char | |
3826 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
3827 | !gdbarch_char_signed (gdbarch), "char"); | |
3828 | builtin_type->builtin_signed_char | |
3829 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
3830 | 0, "signed char"); | |
3831 | builtin_type->builtin_unsigned_char | |
3832 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
3833 | 1, "unsigned char"); | |
3834 | builtin_type->builtin_short | |
3835 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
3836 | 0, "short"); | |
3837 | builtin_type->builtin_unsigned_short | |
3838 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
3839 | 1, "unsigned short"); | |
3840 | builtin_type->builtin_int | |
3841 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
3842 | 0, "int"); | |
3843 | builtin_type->builtin_unsigned_int | |
3844 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
3845 | 1, "unsigned int"); | |
3846 | builtin_type->builtin_long | |
3847 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
3848 | 0, "long"); | |
3849 | builtin_type->builtin_unsigned_long | |
3850 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
3851 | 1, "unsigned long"); | |
3852 | builtin_type->builtin_long_long | |
3853 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
3854 | 0, "long long"); | |
3855 | builtin_type->builtin_unsigned_long_long | |
3856 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
3857 | 1, "unsigned long long"); | |
70bd8e24 | 3858 | builtin_type->builtin_float |
e9bb382b | 3859 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), |
27067745 | 3860 | "float", gdbarch_float_format (gdbarch)); |
70bd8e24 | 3861 | builtin_type->builtin_double |
e9bb382b | 3862 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), |
27067745 | 3863 | "double", gdbarch_double_format (gdbarch)); |
70bd8e24 | 3864 | builtin_type->builtin_long_double |
e9bb382b | 3865 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), |
27067745 | 3866 | "long double", gdbarch_long_double_format (gdbarch)); |
70bd8e24 | 3867 | builtin_type->builtin_complex |
e9bb382b UW |
3868 | = arch_complex_type (gdbarch, "complex", |
3869 | builtin_type->builtin_float); | |
70bd8e24 | 3870 | builtin_type->builtin_double_complex |
e9bb382b UW |
3871 | = arch_complex_type (gdbarch, "double complex", |
3872 | builtin_type->builtin_double); | |
3873 | builtin_type->builtin_string | |
3874 | = arch_type (gdbarch, TYPE_CODE_STRING, 1, "string"); | |
3875 | builtin_type->builtin_bool | |
3876 | = arch_type (gdbarch, TYPE_CODE_BOOL, 1, "bool"); | |
000177f0 | 3877 | |
7678ef8f TJB |
3878 | /* The following three are about decimal floating point types, which |
3879 | are 32-bits, 64-bits and 128-bits respectively. */ | |
3880 | builtin_type->builtin_decfloat | |
e9bb382b | 3881 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 32 / 8, "_Decimal32"); |
7678ef8f | 3882 | builtin_type->builtin_decdouble |
e9bb382b | 3883 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 64 / 8, "_Decimal64"); |
7678ef8f | 3884 | builtin_type->builtin_declong |
e9bb382b | 3885 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 128 / 8, "_Decimal128"); |
7678ef8f | 3886 | |
69feb676 | 3887 | /* "True" character types. */ |
e9bb382b UW |
3888 | builtin_type->builtin_true_char |
3889 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 0, "true character"); | |
3890 | builtin_type->builtin_true_unsigned_char | |
3891 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 1, "true character"); | |
69feb676 | 3892 | |
df4df182 | 3893 | /* Fixed-size integer types. */ |
e9bb382b UW |
3894 | builtin_type->builtin_int0 |
3895 | = arch_integer_type (gdbarch, 0, 0, "int0_t"); | |
3896 | builtin_type->builtin_int8 | |
3897 | = arch_integer_type (gdbarch, 8, 0, "int8_t"); | |
3898 | builtin_type->builtin_uint8 | |
3899 | = arch_integer_type (gdbarch, 8, 1, "uint8_t"); | |
3900 | builtin_type->builtin_int16 | |
3901 | = arch_integer_type (gdbarch, 16, 0, "int16_t"); | |
3902 | builtin_type->builtin_uint16 | |
3903 | = arch_integer_type (gdbarch, 16, 1, "uint16_t"); | |
3904 | builtin_type->builtin_int32 | |
3905 | = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
3906 | builtin_type->builtin_uint32 | |
3907 | = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
3908 | builtin_type->builtin_int64 | |
3909 | = arch_integer_type (gdbarch, 64, 0, "int64_t"); | |
3910 | builtin_type->builtin_uint64 | |
3911 | = arch_integer_type (gdbarch, 64, 1, "uint64_t"); | |
3912 | builtin_type->builtin_int128 | |
3913 | = arch_integer_type (gdbarch, 128, 0, "int128_t"); | |
3914 | builtin_type->builtin_uint128 | |
3915 | = arch_integer_type (gdbarch, 128, 1, "uint128_t"); | |
2844d6b5 KW |
3916 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_int8) |= |
3917 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
3918 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_uint8) |= | |
3919 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
df4df182 | 3920 | |
9a22f0d0 PM |
3921 | /* Wide character types. */ |
3922 | builtin_type->builtin_char16 | |
3923 | = arch_integer_type (gdbarch, 16, 0, "char16_t"); | |
3924 | builtin_type->builtin_char32 | |
3925 | = arch_integer_type (gdbarch, 32, 0, "char32_t"); | |
3926 | ||
3927 | ||
46bf5051 | 3928 | /* Default data/code pointer types. */ |
e9bb382b UW |
3929 | builtin_type->builtin_data_ptr |
3930 | = lookup_pointer_type (builtin_type->builtin_void); | |
3931 | builtin_type->builtin_func_ptr | |
3932 | = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
0875794a JK |
3933 | builtin_type->builtin_func_func |
3934 | = lookup_function_type (builtin_type->builtin_func_ptr); | |
46bf5051 | 3935 | |
78267919 | 3936 | /* This type represents a GDB internal function. */ |
e9bb382b UW |
3937 | builtin_type->internal_fn |
3938 | = arch_type (gdbarch, TYPE_CODE_INTERNAL_FUNCTION, 0, | |
3939 | "<internal function>"); | |
78267919 | 3940 | |
46bf5051 UW |
3941 | return builtin_type; |
3942 | } | |
3943 | ||
46bf5051 UW |
3944 | /* This set of objfile-based types is intended to be used by symbol |
3945 | readers as basic types. */ | |
3946 | ||
3947 | static const struct objfile_data *objfile_type_data; | |
3948 | ||
3949 | const struct objfile_type * | |
3950 | objfile_type (struct objfile *objfile) | |
3951 | { | |
3952 | struct gdbarch *gdbarch; | |
3953 | struct objfile_type *objfile_type | |
3954 | = objfile_data (objfile, objfile_type_data); | |
3955 | ||
3956 | if (objfile_type) | |
3957 | return objfile_type; | |
3958 | ||
3959 | objfile_type = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
3960 | 1, struct objfile_type); | |
3961 | ||
3962 | /* Use the objfile architecture to determine basic type properties. */ | |
3963 | gdbarch = get_objfile_arch (objfile); | |
3964 | ||
3965 | /* Basic types. */ | |
3966 | objfile_type->builtin_void | |
3967 | = init_type (TYPE_CODE_VOID, 1, | |
3968 | 0, | |
3969 | "void", objfile); | |
3970 | ||
3971 | objfile_type->builtin_char | |
3972 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3973 | (TYPE_FLAG_NOSIGN | |
3974 | | (gdbarch_char_signed (gdbarch) ? 0 : TYPE_FLAG_UNSIGNED)), | |
3975 | "char", objfile); | |
3976 | objfile_type->builtin_signed_char | |
3977 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3978 | 0, | |
3979 | "signed char", objfile); | |
3980 | objfile_type->builtin_unsigned_char | |
3981 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3982 | TYPE_FLAG_UNSIGNED, | |
3983 | "unsigned char", objfile); | |
3984 | objfile_type->builtin_short | |
3985 | = init_type (TYPE_CODE_INT, | |
3986 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
3987 | 0, "short", objfile); | |
3988 | objfile_type->builtin_unsigned_short | |
3989 | = init_type (TYPE_CODE_INT, | |
3990 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
3991 | TYPE_FLAG_UNSIGNED, "unsigned short", objfile); | |
3992 | objfile_type->builtin_int | |
3993 | = init_type (TYPE_CODE_INT, | |
3994 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
3995 | 0, "int", objfile); | |
3996 | objfile_type->builtin_unsigned_int | |
3997 | = init_type (TYPE_CODE_INT, | |
3998 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
3999 | TYPE_FLAG_UNSIGNED, "unsigned int", objfile); | |
4000 | objfile_type->builtin_long | |
4001 | = init_type (TYPE_CODE_INT, | |
4002 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
4003 | 0, "long", objfile); | |
4004 | objfile_type->builtin_unsigned_long | |
4005 | = init_type (TYPE_CODE_INT, | |
4006 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
4007 | TYPE_FLAG_UNSIGNED, "unsigned long", objfile); | |
4008 | objfile_type->builtin_long_long | |
4009 | = init_type (TYPE_CODE_INT, | |
4010 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
4011 | 0, "long long", objfile); | |
4012 | objfile_type->builtin_unsigned_long_long | |
4013 | = init_type (TYPE_CODE_INT, | |
4014 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
4015 | TYPE_FLAG_UNSIGNED, "unsigned long long", objfile); | |
4016 | ||
4017 | objfile_type->builtin_float | |
4018 | = init_type (TYPE_CODE_FLT, | |
4019 | gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, | |
4020 | 0, "float", objfile); | |
4021 | TYPE_FLOATFORMAT (objfile_type->builtin_float) | |
4022 | = gdbarch_float_format (gdbarch); | |
4023 | objfile_type->builtin_double | |
4024 | = init_type (TYPE_CODE_FLT, | |
4025 | gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
4026 | 0, "double", objfile); | |
4027 | TYPE_FLOATFORMAT (objfile_type->builtin_double) | |
4028 | = gdbarch_double_format (gdbarch); | |
4029 | objfile_type->builtin_long_double | |
4030 | = init_type (TYPE_CODE_FLT, | |
4031 | gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
4032 | 0, "long double", objfile); | |
4033 | TYPE_FLOATFORMAT (objfile_type->builtin_long_double) | |
4034 | = gdbarch_long_double_format (gdbarch); | |
4035 | ||
4036 | /* This type represents a type that was unrecognized in symbol read-in. */ | |
4037 | objfile_type->builtin_error | |
4038 | = init_type (TYPE_CODE_ERROR, 0, 0, "<unknown type>", objfile); | |
4039 | ||
4040 | /* The following set of types is used for symbols with no | |
4041 | debug information. */ | |
4042 | objfile_type->nodebug_text_symbol | |
4043 | = init_type (TYPE_CODE_FUNC, 1, 0, | |
4044 | "<text variable, no debug info>", objfile); | |
4045 | TYPE_TARGET_TYPE (objfile_type->nodebug_text_symbol) | |
4046 | = objfile_type->builtin_int; | |
0875794a JK |
4047 | objfile_type->nodebug_text_gnu_ifunc_symbol |
4048 | = init_type (TYPE_CODE_FUNC, 1, TYPE_FLAG_GNU_IFUNC, | |
4049 | "<text gnu-indirect-function variable, no debug info>", | |
4050 | objfile); | |
4051 | TYPE_TARGET_TYPE (objfile_type->nodebug_text_gnu_ifunc_symbol) | |
4052 | = objfile_type->nodebug_text_symbol; | |
4053 | objfile_type->nodebug_got_plt_symbol | |
4054 | = init_type (TYPE_CODE_PTR, gdbarch_addr_bit (gdbarch) / 8, 0, | |
4055 | "<text from jump slot in .got.plt, no debug info>", | |
4056 | objfile); | |
4057 | TYPE_TARGET_TYPE (objfile_type->nodebug_got_plt_symbol) | |
4058 | = objfile_type->nodebug_text_symbol; | |
46bf5051 UW |
4059 | objfile_type->nodebug_data_symbol |
4060 | = init_type (TYPE_CODE_INT, | |
4061 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
4062 | "<data variable, no debug info>", objfile); | |
4063 | objfile_type->nodebug_unknown_symbol | |
4064 | = init_type (TYPE_CODE_INT, 1, 0, | |
4065 | "<variable (not text or data), no debug info>", objfile); | |
4066 | objfile_type->nodebug_tls_symbol | |
4067 | = init_type (TYPE_CODE_INT, | |
4068 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
4069 | "<thread local variable, no debug info>", objfile); | |
000177f0 AC |
4070 | |
4071 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
4072 | the same --- for example, on the D10V, pointers are 16 bits long, | |
4073 | but addresses are 32 bits long. See doc/gdbint.texinfo, | |
4074 | ``Pointers Are Not Always Addresses''. | |
4075 | ||
4076 | The upshot is: | |
4077 | - gdb's `struct type' always describes the target's | |
4078 | representation. | |
4079 | - gdb's `struct value' objects should always hold values in | |
4080 | target form. | |
4081 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
4082 | address space that the assembler and linker work with. Thus, | |
4083 | since target_read_memory takes a CORE_ADDR as an argument, it | |
4084 | can access any memory on the target, even if the processor has | |
4085 | separate code and data address spaces. | |
4086 | ||
4087 | So, for example: | |
4088 | - If v is a value holding a D10V code pointer, its contents are | |
4089 | in target form: a big-endian address left-shifted two bits. | |
4090 | - If p is a D10V pointer type, TYPE_LENGTH (p) == 2, just as | |
4091 | sizeof (void *) == 2 on the target. | |
4092 | ||
46bf5051 UW |
4093 | In this context, objfile_type->builtin_core_addr is a bit odd: |
4094 | it's a target type for a value the target will never see. It's | |
4095 | only used to hold the values of (typeless) linker symbols, which | |
4096 | are indeed in the unified virtual address space. */ | |
000177f0 | 4097 | |
46bf5051 UW |
4098 | objfile_type->builtin_core_addr |
4099 | = init_type (TYPE_CODE_INT, | |
4100 | gdbarch_addr_bit (gdbarch) / 8, | |
4101 | TYPE_FLAG_UNSIGNED, "__CORE_ADDR", objfile); | |
64c50499 | 4102 | |
46bf5051 UW |
4103 | set_objfile_data (objfile, objfile_type_data, objfile_type); |
4104 | return objfile_type; | |
000177f0 AC |
4105 | } |
4106 | ||
5212577a | 4107 | extern initialize_file_ftype _initialize_gdbtypes; |
46bf5051 | 4108 | |
c906108c | 4109 | void |
fba45db2 | 4110 | _initialize_gdbtypes (void) |
c906108c | 4111 | { |
5674de60 | 4112 | gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
46bf5051 | 4113 | objfile_type_data = register_objfile_data (); |
5674de60 | 4114 | |
ccce17b0 YQ |
4115 | add_setshow_zuinteger_cmd ("overload", no_class, &overload_debug, |
4116 | _("Set debugging of C++ overloading."), | |
4117 | _("Show debugging of C++ overloading."), | |
4118 | _("When enabled, ranking of the " | |
4119 | "functions is displayed."), | |
4120 | NULL, | |
4121 | show_overload_debug, | |
4122 | &setdebuglist, &showdebuglist); | |
5674de60 | 4123 | |
7ba81444 | 4124 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 | 4125 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3e43a32a MS |
4126 | &opaque_type_resolution, |
4127 | _("Set resolution of opaque struct/class/union" | |
4128 | " types (if set before loading symbols)."), | |
4129 | _("Show resolution of opaque struct/class/union" | |
4130 | " types (if set before loading symbols)."), | |
4131 | NULL, NULL, | |
5674de60 UW |
4132 | show_opaque_type_resolution, |
4133 | &setlist, &showlist); | |
a451cb65 KS |
4134 | |
4135 | /* Add an option to permit non-strict type checking. */ | |
4136 | add_setshow_boolean_cmd ("type", class_support, | |
4137 | &strict_type_checking, | |
4138 | _("Set strict type checking."), | |
4139 | _("Show strict type checking."), | |
4140 | NULL, NULL, | |
4141 | show_strict_type_checking, | |
4142 | &setchecklist, &showchecklist); | |
c906108c | 4143 | } |