Commit | Line | Data |
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c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
4f2aea11 | 2 | |
ecd75fc8 | 3 | Copyright (C) 1992-2014 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" | |
0e9f083f | 23 | #include <string.h> |
c906108c SS |
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" |
ca092b61 DE |
41 | #include "bcache.h" |
42 | #include "dwarf2loc.h" | |
ac3aafc7 | 43 | |
6403aeea SW |
44 | /* Initialize BADNESS constants. */ |
45 | ||
a9d5ef47 | 46 | const struct rank LENGTH_MISMATCH_BADNESS = {100,0}; |
6403aeea | 47 | |
a9d5ef47 SW |
48 | const struct rank TOO_FEW_PARAMS_BADNESS = {100,0}; |
49 | const struct rank INCOMPATIBLE_TYPE_BADNESS = {100,0}; | |
6403aeea | 50 | |
a9d5ef47 | 51 | const struct rank EXACT_MATCH_BADNESS = {0,0}; |
6403aeea | 52 | |
a9d5ef47 SW |
53 | const struct rank INTEGER_PROMOTION_BADNESS = {1,0}; |
54 | const struct rank FLOAT_PROMOTION_BADNESS = {1,0}; | |
55 | const struct rank BASE_PTR_CONVERSION_BADNESS = {1,0}; | |
56 | const struct rank INTEGER_CONVERSION_BADNESS = {2,0}; | |
57 | const struct rank FLOAT_CONVERSION_BADNESS = {2,0}; | |
58 | const struct rank INT_FLOAT_CONVERSION_BADNESS = {2,0}; | |
59 | const struct rank VOID_PTR_CONVERSION_BADNESS = {2,0}; | |
5b4f6e25 | 60 | const struct rank BOOL_CONVERSION_BADNESS = {3,0}; |
a9d5ef47 SW |
61 | const struct rank BASE_CONVERSION_BADNESS = {2,0}; |
62 | const struct rank REFERENCE_CONVERSION_BADNESS = {2,0}; | |
da096638 | 63 | const struct rank NULL_POINTER_CONVERSION_BADNESS = {2,0}; |
a9d5ef47 | 64 | const struct rank NS_POINTER_CONVERSION_BADNESS = {10,0}; |
a451cb65 | 65 | const struct rank NS_INTEGER_POINTER_CONVERSION_BADNESS = {3,0}; |
6403aeea | 66 | |
8da61cc4 | 67 | /* Floatformat pairs. */ |
f9e9243a UW |
68 | const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN] = { |
69 | &floatformat_ieee_half_big, | |
70 | &floatformat_ieee_half_little | |
71 | }; | |
8da61cc4 DJ |
72 | const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { |
73 | &floatformat_ieee_single_big, | |
74 | &floatformat_ieee_single_little | |
75 | }; | |
76 | const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { | |
77 | &floatformat_ieee_double_big, | |
78 | &floatformat_ieee_double_little | |
79 | }; | |
80 | const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { | |
81 | &floatformat_ieee_double_big, | |
82 | &floatformat_ieee_double_littlebyte_bigword | |
83 | }; | |
84 | const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { | |
85 | &floatformat_i387_ext, | |
86 | &floatformat_i387_ext | |
87 | }; | |
88 | const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { | |
89 | &floatformat_m68881_ext, | |
90 | &floatformat_m68881_ext | |
91 | }; | |
92 | const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { | |
93 | &floatformat_arm_ext_big, | |
94 | &floatformat_arm_ext_littlebyte_bigword | |
95 | }; | |
96 | const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { | |
97 | &floatformat_ia64_spill_big, | |
98 | &floatformat_ia64_spill_little | |
99 | }; | |
100 | const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = { | |
101 | &floatformat_ia64_quad_big, | |
102 | &floatformat_ia64_quad_little | |
103 | }; | |
104 | const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { | |
105 | &floatformat_vax_f, | |
106 | &floatformat_vax_f | |
107 | }; | |
108 | const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { | |
109 | &floatformat_vax_d, | |
110 | &floatformat_vax_d | |
111 | }; | |
b14d30e1 | 112 | const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { |
f5aee5ee AM |
113 | &floatformat_ibm_long_double_big, |
114 | &floatformat_ibm_long_double_little | |
b14d30e1 | 115 | }; |
8da61cc4 | 116 | |
2873700e KS |
117 | /* Should opaque types be resolved? */ |
118 | ||
119 | static int opaque_type_resolution = 1; | |
120 | ||
121 | /* A flag to enable printing of debugging information of C++ | |
122 | overloading. */ | |
123 | ||
124 | unsigned int overload_debug = 0; | |
125 | ||
a451cb65 KS |
126 | /* A flag to enable strict type checking. */ |
127 | ||
128 | static int strict_type_checking = 1; | |
129 | ||
2873700e | 130 | /* A function to show whether opaque types are resolved. */ |
5212577a | 131 | |
920d2a44 AC |
132 | static void |
133 | show_opaque_type_resolution (struct ui_file *file, int from_tty, | |
7ba81444 MS |
134 | struct cmd_list_element *c, |
135 | const char *value) | |
920d2a44 | 136 | { |
3e43a32a MS |
137 | fprintf_filtered (file, _("Resolution of opaque struct/class/union types " |
138 | "(if set before loading symbols) is %s.\n"), | |
920d2a44 AC |
139 | value); |
140 | } | |
141 | ||
2873700e | 142 | /* A function to show whether C++ overload debugging is enabled. */ |
5212577a | 143 | |
920d2a44 AC |
144 | static void |
145 | show_overload_debug (struct ui_file *file, int from_tty, | |
146 | struct cmd_list_element *c, const char *value) | |
147 | { | |
7ba81444 MS |
148 | fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"), |
149 | value); | |
920d2a44 | 150 | } |
c906108c | 151 | |
a451cb65 KS |
152 | /* A function to show the status of strict type checking. */ |
153 | ||
154 | static void | |
155 | show_strict_type_checking (struct ui_file *file, int from_tty, | |
156 | struct cmd_list_element *c, const char *value) | |
157 | { | |
158 | fprintf_filtered (file, _("Strict type checking is %s.\n"), value); | |
159 | } | |
160 | ||
5212577a | 161 | \f |
e9bb382b UW |
162 | /* Allocate a new OBJFILE-associated type structure and fill it |
163 | with some defaults. Space for the type structure is allocated | |
164 | on the objfile's objfile_obstack. */ | |
c906108c SS |
165 | |
166 | struct type * | |
fba45db2 | 167 | alloc_type (struct objfile *objfile) |
c906108c | 168 | { |
52f0bd74 | 169 | struct type *type; |
c906108c | 170 | |
e9bb382b UW |
171 | gdb_assert (objfile != NULL); |
172 | ||
7ba81444 | 173 | /* Alloc the structure and start off with all fields zeroed. */ |
e9bb382b UW |
174 | type = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct type); |
175 | TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (&objfile->objfile_obstack, | |
176 | struct main_type); | |
177 | OBJSTAT (objfile, n_types++); | |
c906108c | 178 | |
e9bb382b UW |
179 | TYPE_OBJFILE_OWNED (type) = 1; |
180 | TYPE_OWNER (type).objfile = objfile; | |
c906108c | 181 | |
7ba81444 | 182 | /* Initialize the fields that might not be zero. */ |
c906108c SS |
183 | |
184 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
c906108c | 185 | TYPE_VPTR_FIELDNO (type) = -1; |
2fdde8f8 | 186 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
c906108c | 187 | |
c16abbde | 188 | return type; |
c906108c SS |
189 | } |
190 | ||
e9bb382b UW |
191 | /* Allocate a new GDBARCH-associated type structure and fill it |
192 | with some defaults. Space for the type structure is allocated | |
193 | on the heap. */ | |
194 | ||
195 | struct type * | |
196 | alloc_type_arch (struct gdbarch *gdbarch) | |
197 | { | |
198 | struct type *type; | |
199 | ||
200 | gdb_assert (gdbarch != NULL); | |
201 | ||
202 | /* Alloc the structure and start off with all fields zeroed. */ | |
203 | ||
41bf6aca TT |
204 | type = XCNEW (struct type); |
205 | TYPE_MAIN_TYPE (type) = XCNEW (struct main_type); | |
e9bb382b UW |
206 | |
207 | TYPE_OBJFILE_OWNED (type) = 0; | |
208 | TYPE_OWNER (type).gdbarch = gdbarch; | |
209 | ||
210 | /* Initialize the fields that might not be zero. */ | |
211 | ||
212 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
213 | TYPE_VPTR_FIELDNO (type) = -1; | |
214 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ | |
215 | ||
216 | return type; | |
217 | } | |
218 | ||
219 | /* If TYPE is objfile-associated, allocate a new type structure | |
220 | associated with the same objfile. If TYPE is gdbarch-associated, | |
221 | allocate a new type structure associated with the same gdbarch. */ | |
222 | ||
223 | struct type * | |
224 | alloc_type_copy (const struct type *type) | |
225 | { | |
226 | if (TYPE_OBJFILE_OWNED (type)) | |
227 | return alloc_type (TYPE_OWNER (type).objfile); | |
228 | else | |
229 | return alloc_type_arch (TYPE_OWNER (type).gdbarch); | |
230 | } | |
231 | ||
232 | /* If TYPE is gdbarch-associated, return that architecture. | |
233 | If TYPE is objfile-associated, return that objfile's architecture. */ | |
234 | ||
235 | struct gdbarch * | |
236 | get_type_arch (const struct type *type) | |
237 | { | |
238 | if (TYPE_OBJFILE_OWNED (type)) | |
239 | return get_objfile_arch (TYPE_OWNER (type).objfile); | |
240 | else | |
241 | return TYPE_OWNER (type).gdbarch; | |
242 | } | |
243 | ||
99ad9427 YQ |
244 | /* See gdbtypes.h. */ |
245 | ||
246 | struct type * | |
247 | get_target_type (struct type *type) | |
248 | { | |
249 | if (type != NULL) | |
250 | { | |
251 | type = TYPE_TARGET_TYPE (type); | |
252 | if (type != NULL) | |
253 | type = check_typedef (type); | |
254 | } | |
255 | ||
256 | return type; | |
257 | } | |
258 | ||
2fdde8f8 DJ |
259 | /* Alloc a new type instance structure, fill it with some defaults, |
260 | and point it at OLDTYPE. Allocate the new type instance from the | |
261 | same place as OLDTYPE. */ | |
262 | ||
263 | static struct type * | |
264 | alloc_type_instance (struct type *oldtype) | |
265 | { | |
266 | struct type *type; | |
267 | ||
268 | /* Allocate the structure. */ | |
269 | ||
e9bb382b | 270 | if (! TYPE_OBJFILE_OWNED (oldtype)) |
41bf6aca | 271 | type = XCNEW (struct type); |
2fdde8f8 | 272 | else |
1deafd4e PA |
273 | type = OBSTACK_ZALLOC (&TYPE_OBJFILE (oldtype)->objfile_obstack, |
274 | struct type); | |
275 | ||
2fdde8f8 DJ |
276 | TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype); |
277 | ||
278 | TYPE_CHAIN (type) = type; /* Chain back to itself for now. */ | |
279 | ||
c16abbde | 280 | return type; |
2fdde8f8 DJ |
281 | } |
282 | ||
283 | /* Clear all remnants of the previous type at TYPE, in preparation for | |
e9bb382b | 284 | replacing it with something else. Preserve owner information. */ |
5212577a | 285 | |
2fdde8f8 DJ |
286 | static void |
287 | smash_type (struct type *type) | |
288 | { | |
e9bb382b UW |
289 | int objfile_owned = TYPE_OBJFILE_OWNED (type); |
290 | union type_owner owner = TYPE_OWNER (type); | |
291 | ||
2fdde8f8 DJ |
292 | memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
293 | ||
e9bb382b UW |
294 | /* Restore owner information. */ |
295 | TYPE_OBJFILE_OWNED (type) = objfile_owned; | |
296 | TYPE_OWNER (type) = owner; | |
297 | ||
2fdde8f8 DJ |
298 | /* For now, delete the rings. */ |
299 | TYPE_CHAIN (type) = type; | |
300 | ||
301 | /* For now, leave the pointer/reference types alone. */ | |
302 | } | |
303 | ||
c906108c SS |
304 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
305 | to a pointer to memory where the pointer type should be stored. | |
306 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
307 | We allocate new memory if needed. */ | |
308 | ||
309 | struct type * | |
fba45db2 | 310 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 311 | { |
52f0bd74 | 312 | struct type *ntype; /* New type */ |
053cb41b | 313 | struct type *chain; |
c906108c SS |
314 | |
315 | ntype = TYPE_POINTER_TYPE (type); | |
316 | ||
c5aa993b | 317 | if (ntype) |
c906108c | 318 | { |
c5aa993b | 319 | if (typeptr == 0) |
7ba81444 MS |
320 | return ntype; /* Don't care about alloc, |
321 | and have new type. */ | |
c906108c | 322 | else if (*typeptr == 0) |
c5aa993b | 323 | { |
7ba81444 | 324 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 325 | return ntype; |
c5aa993b | 326 | } |
c906108c SS |
327 | } |
328 | ||
329 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
330 | { | |
e9bb382b | 331 | ntype = alloc_type_copy (type); |
c906108c SS |
332 | if (typeptr) |
333 | *typeptr = ntype; | |
334 | } | |
7ba81444 | 335 | else /* We have storage, but need to reset it. */ |
c906108c SS |
336 | { |
337 | ntype = *typeptr; | |
053cb41b | 338 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 339 | smash_type (ntype); |
053cb41b | 340 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
341 | } |
342 | ||
343 | TYPE_TARGET_TYPE (ntype) = type; | |
344 | TYPE_POINTER_TYPE (type) = ntype; | |
345 | ||
5212577a | 346 | /* FIXME! Assumes the machine has only one representation for pointers! */ |
c906108c | 347 | |
50810684 UW |
348 | TYPE_LENGTH (ntype) |
349 | = gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c SS |
350 | TYPE_CODE (ntype) = TYPE_CODE_PTR; |
351 | ||
67b2adb2 | 352 | /* Mark pointers as unsigned. The target converts between pointers |
76e71323 | 353 | and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and |
7ba81444 | 354 | gdbarch_address_to_pointer. */ |
876cecd0 | 355 | TYPE_UNSIGNED (ntype) = 1; |
c5aa993b | 356 | |
053cb41b JB |
357 | /* Update the length of all the other variants of this type. */ |
358 | chain = TYPE_CHAIN (ntype); | |
359 | while (chain != ntype) | |
360 | { | |
361 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
362 | chain = TYPE_CHAIN (chain); | |
363 | } | |
364 | ||
c906108c SS |
365 | return ntype; |
366 | } | |
367 | ||
368 | /* Given a type TYPE, return a type of pointers to that type. | |
369 | May need to construct such a type if this is the first use. */ | |
370 | ||
371 | struct type * | |
fba45db2 | 372 | lookup_pointer_type (struct type *type) |
c906108c | 373 | { |
c5aa993b | 374 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
375 | } |
376 | ||
7ba81444 MS |
377 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, |
378 | points to a pointer to memory where the reference type should be | |
379 | stored. If *TYPEPTR is zero, update it to point to the reference | |
380 | type we return. We allocate new memory if needed. */ | |
c906108c SS |
381 | |
382 | struct type * | |
fba45db2 | 383 | make_reference_type (struct type *type, struct type **typeptr) |
c906108c | 384 | { |
52f0bd74 | 385 | struct type *ntype; /* New type */ |
1e98b326 | 386 | struct type *chain; |
c906108c SS |
387 | |
388 | ntype = TYPE_REFERENCE_TYPE (type); | |
389 | ||
c5aa993b | 390 | if (ntype) |
c906108c | 391 | { |
c5aa993b | 392 | if (typeptr == 0) |
7ba81444 MS |
393 | return ntype; /* Don't care about alloc, |
394 | and have new type. */ | |
c906108c | 395 | else if (*typeptr == 0) |
c5aa993b | 396 | { |
7ba81444 | 397 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 398 | return ntype; |
c5aa993b | 399 | } |
c906108c SS |
400 | } |
401 | ||
402 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
403 | { | |
e9bb382b | 404 | ntype = alloc_type_copy (type); |
c906108c SS |
405 | if (typeptr) |
406 | *typeptr = ntype; | |
407 | } | |
7ba81444 | 408 | else /* We have storage, but need to reset it. */ |
c906108c SS |
409 | { |
410 | ntype = *typeptr; | |
1e98b326 | 411 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 412 | smash_type (ntype); |
1e98b326 | 413 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
414 | } |
415 | ||
416 | TYPE_TARGET_TYPE (ntype) = type; | |
417 | TYPE_REFERENCE_TYPE (type) = ntype; | |
418 | ||
7ba81444 MS |
419 | /* FIXME! Assume the machine has only one representation for |
420 | references, and that it matches the (only) representation for | |
421 | pointers! */ | |
c906108c | 422 | |
50810684 UW |
423 | TYPE_LENGTH (ntype) = |
424 | gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c | 425 | TYPE_CODE (ntype) = TYPE_CODE_REF; |
c5aa993b | 426 | |
c906108c SS |
427 | if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */ |
428 | TYPE_REFERENCE_TYPE (type) = ntype; | |
429 | ||
1e98b326 JB |
430 | /* Update the length of all the other variants of this type. */ |
431 | chain = TYPE_CHAIN (ntype); | |
432 | while (chain != ntype) | |
433 | { | |
434 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
435 | chain = TYPE_CHAIN (chain); | |
436 | } | |
437 | ||
c906108c SS |
438 | return ntype; |
439 | } | |
440 | ||
7ba81444 MS |
441 | /* Same as above, but caller doesn't care about memory allocation |
442 | details. */ | |
c906108c SS |
443 | |
444 | struct type * | |
fba45db2 | 445 | lookup_reference_type (struct type *type) |
c906108c | 446 | { |
c5aa993b | 447 | return make_reference_type (type, (struct type **) 0); |
c906108c SS |
448 | } |
449 | ||
7ba81444 MS |
450 | /* Lookup a function type that returns type TYPE. TYPEPTR, if |
451 | nonzero, points to a pointer to memory where the function type | |
452 | should be stored. If *TYPEPTR is zero, update it to point to the | |
0c8b41f1 | 453 | function type we return. We allocate new memory if needed. */ |
c906108c SS |
454 | |
455 | struct type * | |
0c8b41f1 | 456 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 457 | { |
52f0bd74 | 458 | struct type *ntype; /* New type */ |
c906108c SS |
459 | |
460 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
461 | { | |
e9bb382b | 462 | ntype = alloc_type_copy (type); |
c906108c SS |
463 | if (typeptr) |
464 | *typeptr = ntype; | |
465 | } | |
7ba81444 | 466 | else /* We have storage, but need to reset it. */ |
c906108c SS |
467 | { |
468 | ntype = *typeptr; | |
2fdde8f8 | 469 | smash_type (ntype); |
c906108c SS |
470 | } |
471 | ||
472 | TYPE_TARGET_TYPE (ntype) = type; | |
473 | ||
474 | TYPE_LENGTH (ntype) = 1; | |
475 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
c5aa993b | 476 | |
b6cdc2c1 JK |
477 | INIT_FUNC_SPECIFIC (ntype); |
478 | ||
c906108c SS |
479 | return ntype; |
480 | } | |
481 | ||
c906108c SS |
482 | /* Given a type TYPE, return a type of functions that return that type. |
483 | May need to construct such a type if this is the first use. */ | |
484 | ||
485 | struct type * | |
fba45db2 | 486 | lookup_function_type (struct type *type) |
c906108c | 487 | { |
0c8b41f1 | 488 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
489 | } |
490 | ||
71918a86 | 491 | /* Given a type TYPE and argument types, return the appropriate |
a6fb9c08 TT |
492 | function type. If the final type in PARAM_TYPES is NULL, make a |
493 | varargs function. */ | |
71918a86 TT |
494 | |
495 | struct type * | |
496 | lookup_function_type_with_arguments (struct type *type, | |
497 | int nparams, | |
498 | struct type **param_types) | |
499 | { | |
500 | struct type *fn = make_function_type (type, (struct type **) 0); | |
501 | int i; | |
502 | ||
e314d629 | 503 | if (nparams > 0) |
a6fb9c08 | 504 | { |
e314d629 TT |
505 | if (param_types[nparams - 1] == NULL) |
506 | { | |
507 | --nparams; | |
508 | TYPE_VARARGS (fn) = 1; | |
509 | } | |
510 | else if (TYPE_CODE (check_typedef (param_types[nparams - 1])) | |
511 | == TYPE_CODE_VOID) | |
512 | { | |
513 | --nparams; | |
514 | /* Caller should have ensured this. */ | |
515 | gdb_assert (nparams == 0); | |
516 | TYPE_PROTOTYPED (fn) = 1; | |
517 | } | |
a6fb9c08 TT |
518 | } |
519 | ||
71918a86 TT |
520 | TYPE_NFIELDS (fn) = nparams; |
521 | TYPE_FIELDS (fn) = TYPE_ZALLOC (fn, nparams * sizeof (struct field)); | |
522 | for (i = 0; i < nparams; ++i) | |
523 | TYPE_FIELD_TYPE (fn, i) = param_types[i]; | |
524 | ||
525 | return fn; | |
526 | } | |
527 | ||
47663de5 MS |
528 | /* Identify address space identifier by name -- |
529 | return the integer flag defined in gdbtypes.h. */ | |
5212577a DE |
530 | |
531 | int | |
50810684 | 532 | address_space_name_to_int (struct gdbarch *gdbarch, char *space_identifier) |
47663de5 | 533 | { |
8b2dbe47 | 534 | int type_flags; |
d8734c88 | 535 | |
7ba81444 | 536 | /* Check for known address space delimiters. */ |
47663de5 | 537 | if (!strcmp (space_identifier, "code")) |
876cecd0 | 538 | return TYPE_INSTANCE_FLAG_CODE_SPACE; |
47663de5 | 539 | else if (!strcmp (space_identifier, "data")) |
876cecd0 | 540 | return TYPE_INSTANCE_FLAG_DATA_SPACE; |
5f11f355 AC |
541 | else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
542 | && gdbarch_address_class_name_to_type_flags (gdbarch, | |
543 | space_identifier, | |
544 | &type_flags)) | |
8b2dbe47 | 545 | return type_flags; |
47663de5 | 546 | else |
8a3fe4f8 | 547 | error (_("Unknown address space specifier: \"%s\""), space_identifier); |
47663de5 MS |
548 | } |
549 | ||
550 | /* Identify address space identifier by integer flag as defined in | |
7ba81444 | 551 | gdbtypes.h -- return the string version of the adress space name. */ |
47663de5 | 552 | |
321432c0 | 553 | const char * |
50810684 | 554 | address_space_int_to_name (struct gdbarch *gdbarch, int space_flag) |
47663de5 | 555 | { |
876cecd0 | 556 | if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE) |
47663de5 | 557 | return "code"; |
876cecd0 | 558 | else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE) |
47663de5 | 559 | return "data"; |
876cecd0 | 560 | else if ((space_flag & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) |
5f11f355 AC |
561 | && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
562 | return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); | |
47663de5 MS |
563 | else |
564 | return NULL; | |
565 | } | |
566 | ||
2fdde8f8 | 567 | /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
ad766c0a JB |
568 | |
569 | If STORAGE is non-NULL, create the new type instance there. | |
570 | STORAGE must be in the same obstack as TYPE. */ | |
47663de5 | 571 | |
b9362cc7 | 572 | static struct type * |
2fdde8f8 DJ |
573 | make_qualified_type (struct type *type, int new_flags, |
574 | struct type *storage) | |
47663de5 MS |
575 | { |
576 | struct type *ntype; | |
577 | ||
578 | ntype = type; | |
5f61c20e JK |
579 | do |
580 | { | |
581 | if (TYPE_INSTANCE_FLAGS (ntype) == new_flags) | |
582 | return ntype; | |
583 | ntype = TYPE_CHAIN (ntype); | |
584 | } | |
585 | while (ntype != type); | |
47663de5 | 586 | |
2fdde8f8 DJ |
587 | /* Create a new type instance. */ |
588 | if (storage == NULL) | |
589 | ntype = alloc_type_instance (type); | |
590 | else | |
591 | { | |
7ba81444 MS |
592 | /* If STORAGE was provided, it had better be in the same objfile |
593 | as TYPE. Otherwise, we can't link it into TYPE's cv chain: | |
594 | if one objfile is freed and the other kept, we'd have | |
595 | dangling pointers. */ | |
ad766c0a JB |
596 | gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage)); |
597 | ||
2fdde8f8 DJ |
598 | ntype = storage; |
599 | TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); | |
600 | TYPE_CHAIN (ntype) = ntype; | |
601 | } | |
47663de5 MS |
602 | |
603 | /* Pointers or references to the original type are not relevant to | |
2fdde8f8 | 604 | the new type. */ |
47663de5 MS |
605 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
606 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
47663de5 | 607 | |
2fdde8f8 DJ |
608 | /* Chain the new qualified type to the old type. */ |
609 | TYPE_CHAIN (ntype) = TYPE_CHAIN (type); | |
610 | TYPE_CHAIN (type) = ntype; | |
611 | ||
612 | /* Now set the instance flags and return the new type. */ | |
613 | TYPE_INSTANCE_FLAGS (ntype) = new_flags; | |
47663de5 | 614 | |
ab5d3da6 KB |
615 | /* Set length of new type to that of the original type. */ |
616 | TYPE_LENGTH (ntype) = TYPE_LENGTH (type); | |
617 | ||
47663de5 MS |
618 | return ntype; |
619 | } | |
620 | ||
2fdde8f8 DJ |
621 | /* Make an address-space-delimited variant of a type -- a type that |
622 | is identical to the one supplied except that it has an address | |
623 | space attribute attached to it (such as "code" or "data"). | |
624 | ||
7ba81444 MS |
625 | The space attributes "code" and "data" are for Harvard |
626 | architectures. The address space attributes are for architectures | |
627 | which have alternately sized pointers or pointers with alternate | |
628 | representations. */ | |
2fdde8f8 DJ |
629 | |
630 | struct type * | |
631 | make_type_with_address_space (struct type *type, int space_flag) | |
632 | { | |
2fdde8f8 | 633 | int new_flags = ((TYPE_INSTANCE_FLAGS (type) |
876cecd0 TT |
634 | & ~(TYPE_INSTANCE_FLAG_CODE_SPACE |
635 | | TYPE_INSTANCE_FLAG_DATA_SPACE | |
636 | | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)) | |
2fdde8f8 DJ |
637 | | space_flag); |
638 | ||
639 | return make_qualified_type (type, new_flags, NULL); | |
640 | } | |
c906108c SS |
641 | |
642 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
643 | one supplied except that it may have const or volatile attributes | |
644 | CNST is a flag for setting the const attribute | |
645 | VOLTL is a flag for setting the volatile attribute | |
646 | TYPE is the base type whose variant we are creating. | |
c906108c | 647 | |
ad766c0a JB |
648 | If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to |
649 | storage to hold the new qualified type; *TYPEPTR and TYPE must be | |
650 | in the same objfile. Otherwise, allocate fresh memory for the new | |
651 | type whereever TYPE lives. If TYPEPTR is non-zero, set it to the | |
652 | new type we construct. */ | |
5212577a | 653 | |
c906108c | 654 | struct type * |
7ba81444 MS |
655 | make_cv_type (int cnst, int voltl, |
656 | struct type *type, | |
657 | struct type **typeptr) | |
c906108c | 658 | { |
52f0bd74 | 659 | struct type *ntype; /* New type */ |
c906108c | 660 | |
2fdde8f8 | 661 | int new_flags = (TYPE_INSTANCE_FLAGS (type) |
308d96ed MS |
662 | & ~(TYPE_INSTANCE_FLAG_CONST |
663 | | TYPE_INSTANCE_FLAG_VOLATILE)); | |
c906108c | 664 | |
c906108c | 665 | if (cnst) |
876cecd0 | 666 | new_flags |= TYPE_INSTANCE_FLAG_CONST; |
c906108c SS |
667 | |
668 | if (voltl) | |
876cecd0 | 669 | new_flags |= TYPE_INSTANCE_FLAG_VOLATILE; |
a02fd225 | 670 | |
2fdde8f8 | 671 | if (typeptr && *typeptr != NULL) |
a02fd225 | 672 | { |
ad766c0a JB |
673 | /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
674 | a C-V variant chain that threads across objfiles: if one | |
675 | objfile gets freed, then the other has a broken C-V chain. | |
676 | ||
677 | This code used to try to copy over the main type from TYPE to | |
678 | *TYPEPTR if they were in different objfiles, but that's | |
679 | wrong, too: TYPE may have a field list or member function | |
680 | lists, which refer to types of their own, etc. etc. The | |
681 | whole shebang would need to be copied over recursively; you | |
682 | can't have inter-objfile pointers. The only thing to do is | |
683 | to leave stub types as stub types, and look them up afresh by | |
684 | name each time you encounter them. */ | |
685 | gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type)); | |
2fdde8f8 DJ |
686 | } |
687 | ||
7ba81444 MS |
688 | ntype = make_qualified_type (type, new_flags, |
689 | typeptr ? *typeptr : NULL); | |
c906108c | 690 | |
2fdde8f8 DJ |
691 | if (typeptr != NULL) |
692 | *typeptr = ntype; | |
a02fd225 | 693 | |
2fdde8f8 | 694 | return ntype; |
a02fd225 | 695 | } |
c906108c | 696 | |
06d66ee9 TT |
697 | /* Make a 'restrict'-qualified version of TYPE. */ |
698 | ||
699 | struct type * | |
700 | make_restrict_type (struct type *type) | |
701 | { | |
702 | return make_qualified_type (type, | |
703 | (TYPE_INSTANCE_FLAGS (type) | |
704 | | TYPE_INSTANCE_FLAG_RESTRICT), | |
705 | NULL); | |
706 | } | |
707 | ||
2fdde8f8 DJ |
708 | /* Replace the contents of ntype with the type *type. This changes the |
709 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
710 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 711 | |
cda6c68a JB |
712 | In order to build recursive types, it's inevitable that we'll need |
713 | to update types in place --- but this sort of indiscriminate | |
714 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
715 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
716 | clear if more steps are needed. */ | |
5212577a | 717 | |
dd6bda65 DJ |
718 | void |
719 | replace_type (struct type *ntype, struct type *type) | |
720 | { | |
ab5d3da6 | 721 | struct type *chain; |
dd6bda65 | 722 | |
ad766c0a JB |
723 | /* These two types had better be in the same objfile. Otherwise, |
724 | the assignment of one type's main type structure to the other | |
725 | will produce a type with references to objects (names; field | |
726 | lists; etc.) allocated on an objfile other than its own. */ | |
727 | gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (ntype)); | |
728 | ||
2fdde8f8 | 729 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 730 | |
7ba81444 MS |
731 | /* The type length is not a part of the main type. Update it for |
732 | each type on the variant chain. */ | |
ab5d3da6 | 733 | chain = ntype; |
5f61c20e JK |
734 | do |
735 | { | |
736 | /* Assert that this element of the chain has no address-class bits | |
737 | set in its flags. Such type variants might have type lengths | |
738 | which are supposed to be different from the non-address-class | |
739 | variants. This assertion shouldn't ever be triggered because | |
740 | symbol readers which do construct address-class variants don't | |
741 | call replace_type(). */ | |
742 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
743 | ||
744 | TYPE_LENGTH (chain) = TYPE_LENGTH (type); | |
745 | chain = TYPE_CHAIN (chain); | |
746 | } | |
747 | while (ntype != chain); | |
ab5d3da6 | 748 | |
2fdde8f8 DJ |
749 | /* Assert that the two types have equivalent instance qualifiers. |
750 | This should be true for at least all of our debug readers. */ | |
751 | gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type)); | |
dd6bda65 DJ |
752 | } |
753 | ||
c906108c SS |
754 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
755 | May need to construct such a type if this is the first use. | |
756 | The TYPE is the type of the member. The DOMAIN is the type | |
757 | of the aggregate that the member belongs to. */ | |
758 | ||
759 | struct type * | |
0d5de010 | 760 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 761 | { |
52f0bd74 | 762 | struct type *mtype; |
c906108c | 763 | |
e9bb382b | 764 | mtype = alloc_type_copy (type); |
0d5de010 | 765 | smash_to_memberptr_type (mtype, domain, type); |
c16abbde | 766 | return mtype; |
c906108c SS |
767 | } |
768 | ||
0d5de010 DJ |
769 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
770 | ||
771 | struct type * | |
772 | lookup_methodptr_type (struct type *to_type) | |
773 | { | |
774 | struct type *mtype; | |
775 | ||
e9bb382b | 776 | mtype = alloc_type_copy (to_type); |
0b92b5bb | 777 | smash_to_methodptr_type (mtype, to_type); |
0d5de010 DJ |
778 | return mtype; |
779 | } | |
780 | ||
7ba81444 MS |
781 | /* Allocate a stub method whose return type is TYPE. This apparently |
782 | happens for speed of symbol reading, since parsing out the | |
783 | arguments to the method is cpu-intensive, the way we are doing it. | |
784 | So, we will fill in arguments later. This always returns a fresh | |
785 | type. */ | |
c906108c SS |
786 | |
787 | struct type * | |
fba45db2 | 788 | allocate_stub_method (struct type *type) |
c906108c SS |
789 | { |
790 | struct type *mtype; | |
791 | ||
e9bb382b UW |
792 | mtype = alloc_type_copy (type); |
793 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; | |
794 | TYPE_LENGTH (mtype) = 1; | |
795 | TYPE_STUB (mtype) = 1; | |
c906108c SS |
796 | TYPE_TARGET_TYPE (mtype) = type; |
797 | /* _DOMAIN_TYPE (mtype) = unknown yet */ | |
c16abbde | 798 | return mtype; |
c906108c SS |
799 | } |
800 | ||
7ba81444 MS |
801 | /* Create a range type using either a blank type supplied in |
802 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
803 | INDEX_TYPE. | |
c906108c | 804 | |
7ba81444 MS |
805 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND |
806 | to HIGH_BOUND, inclusive. | |
c906108c | 807 | |
7ba81444 MS |
808 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
809 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
c906108c SS |
810 | |
811 | struct type * | |
fba45db2 | 812 | create_range_type (struct type *result_type, struct type *index_type, |
43bbcdc2 | 813 | LONGEST low_bound, LONGEST high_bound) |
c906108c SS |
814 | { |
815 | if (result_type == NULL) | |
e9bb382b | 816 | result_type = alloc_type_copy (index_type); |
c906108c SS |
817 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; |
818 | TYPE_TARGET_TYPE (result_type) = index_type; | |
74a9bb82 | 819 | if (TYPE_STUB (index_type)) |
876cecd0 | 820 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c SS |
821 | else |
822 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
43bbcdc2 PH |
823 | TYPE_RANGE_DATA (result_type) = (struct range_bounds *) |
824 | TYPE_ZALLOC (result_type, sizeof (struct range_bounds)); | |
262452ec JK |
825 | TYPE_LOW_BOUND (result_type) = low_bound; |
826 | TYPE_HIGH_BOUND (result_type) = high_bound; | |
c906108c | 827 | |
c5aa993b | 828 | if (low_bound >= 0) |
876cecd0 | 829 | TYPE_UNSIGNED (result_type) = 1; |
c906108c | 830 | |
262452ec | 831 | return result_type; |
c906108c SS |
832 | } |
833 | ||
7ba81444 MS |
834 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
835 | TYPE. Return 1 if type is a range type, 0 if it is discrete (and | |
836 | bounds will fit in LONGEST), or -1 otherwise. */ | |
c906108c SS |
837 | |
838 | int | |
fba45db2 | 839 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c SS |
840 | { |
841 | CHECK_TYPEDEF (type); | |
842 | switch (TYPE_CODE (type)) | |
843 | { | |
844 | case TYPE_CODE_RANGE: | |
845 | *lowp = TYPE_LOW_BOUND (type); | |
846 | *highp = TYPE_HIGH_BOUND (type); | |
847 | return 1; | |
848 | case TYPE_CODE_ENUM: | |
849 | if (TYPE_NFIELDS (type) > 0) | |
850 | { | |
851 | /* The enums may not be sorted by value, so search all | |
0963b4bd | 852 | entries. */ |
c906108c SS |
853 | int i; |
854 | ||
14e75d8e | 855 | *lowp = *highp = TYPE_FIELD_ENUMVAL (type, 0); |
c906108c SS |
856 | for (i = 0; i < TYPE_NFIELDS (type); i++) |
857 | { | |
14e75d8e JK |
858 | if (TYPE_FIELD_ENUMVAL (type, i) < *lowp) |
859 | *lowp = TYPE_FIELD_ENUMVAL (type, i); | |
860 | if (TYPE_FIELD_ENUMVAL (type, i) > *highp) | |
861 | *highp = TYPE_FIELD_ENUMVAL (type, i); | |
c906108c SS |
862 | } |
863 | ||
7ba81444 | 864 | /* Set unsigned indicator if warranted. */ |
c5aa993b | 865 | if (*lowp >= 0) |
c906108c | 866 | { |
876cecd0 | 867 | TYPE_UNSIGNED (type) = 1; |
c906108c SS |
868 | } |
869 | } | |
870 | else | |
871 | { | |
872 | *lowp = 0; | |
873 | *highp = -1; | |
874 | } | |
875 | return 0; | |
876 | case TYPE_CODE_BOOL: | |
877 | *lowp = 0; | |
878 | *highp = 1; | |
879 | return 0; | |
880 | case TYPE_CODE_INT: | |
c5aa993b | 881 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
882 | return -1; |
883 | if (!TYPE_UNSIGNED (type)) | |
884 | { | |
c5aa993b | 885 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
886 | *highp = -*lowp - 1; |
887 | return 0; | |
888 | } | |
7ba81444 | 889 | /* ... fall through for unsigned ints ... */ |
c906108c SS |
890 | case TYPE_CODE_CHAR: |
891 | *lowp = 0; | |
892 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 | 893 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
7ba81444 | 894 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
c906108c SS |
895 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
896 | *highp = (*highp - 1) | *highp; | |
897 | return 0; | |
898 | default: | |
899 | return -1; | |
900 | } | |
901 | } | |
902 | ||
dbc98a8b KW |
903 | /* Assuming TYPE is a simple, non-empty array type, compute its upper |
904 | and lower bound. Save the low bound into LOW_BOUND if not NULL. | |
905 | Save the high bound into HIGH_BOUND if not NULL. | |
906 | ||
0963b4bd | 907 | Return 1 if the operation was successful. Return zero otherwise, |
dbc98a8b KW |
908 | in which case the values of LOW_BOUND and HIGH_BOUNDS are unmodified. |
909 | ||
910 | We now simply use get_discrete_bounds call to get the values | |
911 | of the low and high bounds. | |
912 | get_discrete_bounds can return three values: | |
913 | 1, meaning that index is a range, | |
914 | 0, meaning that index is a discrete type, | |
915 | or -1 for failure. */ | |
916 | ||
917 | int | |
918 | get_array_bounds (struct type *type, LONGEST *low_bound, LONGEST *high_bound) | |
919 | { | |
920 | struct type *index = TYPE_INDEX_TYPE (type); | |
921 | LONGEST low = 0; | |
922 | LONGEST high = 0; | |
923 | int res; | |
924 | ||
925 | if (index == NULL) | |
926 | return 0; | |
927 | ||
928 | res = get_discrete_bounds (index, &low, &high); | |
929 | if (res == -1) | |
930 | return 0; | |
931 | ||
932 | /* Check if the array bounds are undefined. */ | |
933 | if (res == 1 | |
934 | && ((low_bound && TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED (type)) | |
935 | || (high_bound && TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type)))) | |
936 | return 0; | |
937 | ||
938 | if (low_bound) | |
939 | *low_bound = low; | |
940 | ||
941 | if (high_bound) | |
942 | *high_bound = high; | |
943 | ||
944 | return 1; | |
945 | } | |
946 | ||
7ba81444 MS |
947 | /* Create an array type using either a blank type supplied in |
948 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
949 | RANGE_TYPE. | |
c906108c SS |
950 | |
951 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
952 | RANGE_TYPE. | |
953 | ||
7ba81444 MS |
954 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
955 | sure it is TYPE_CODE_UNDEF before we bash it into an array | |
956 | type? */ | |
c906108c SS |
957 | |
958 | struct type * | |
7ba81444 MS |
959 | create_array_type (struct type *result_type, |
960 | struct type *element_type, | |
fba45db2 | 961 | struct type *range_type) |
c906108c SS |
962 | { |
963 | LONGEST low_bound, high_bound; | |
964 | ||
965 | if (result_type == NULL) | |
e9bb382b UW |
966 | result_type = alloc_type_copy (range_type); |
967 | ||
c906108c SS |
968 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
969 | TYPE_TARGET_TYPE (result_type) = element_type; | |
970 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
971 | low_bound = high_bound = 0; | |
972 | CHECK_TYPEDEF (element_type); | |
ab0d6e0d JB |
973 | /* Be careful when setting the array length. Ada arrays can be |
974 | empty arrays with the high_bound being smaller than the low_bound. | |
975 | In such cases, the array length should be zero. */ | |
976 | if (high_bound < low_bound) | |
977 | TYPE_LENGTH (result_type) = 0; | |
978 | else | |
979 | TYPE_LENGTH (result_type) = | |
980 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
c906108c SS |
981 | TYPE_NFIELDS (result_type) = 1; |
982 | TYPE_FIELDS (result_type) = | |
1deafd4e | 983 | (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); |
262452ec | 984 | TYPE_INDEX_TYPE (result_type) = range_type; |
c906108c SS |
985 | TYPE_VPTR_FIELDNO (result_type) = -1; |
986 | ||
0963b4bd | 987 | /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays. */ |
c906108c | 988 | if (TYPE_LENGTH (result_type) == 0) |
876cecd0 | 989 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c | 990 | |
c16abbde | 991 | return result_type; |
c906108c SS |
992 | } |
993 | ||
e3506a9f UW |
994 | struct type * |
995 | lookup_array_range_type (struct type *element_type, | |
63375b74 | 996 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f | 997 | { |
50810684 | 998 | struct gdbarch *gdbarch = get_type_arch (element_type); |
e3506a9f UW |
999 | struct type *index_type = builtin_type (gdbarch)->builtin_int; |
1000 | struct type *range_type | |
1001 | = create_range_type (NULL, index_type, low_bound, high_bound); | |
d8734c88 | 1002 | |
e3506a9f UW |
1003 | return create_array_type (NULL, element_type, range_type); |
1004 | } | |
1005 | ||
7ba81444 MS |
1006 | /* Create a string type using either a blank type supplied in |
1007 | RESULT_TYPE, or creating a new type. String types are similar | |
1008 | enough to array of char types that we can use create_array_type to | |
1009 | build the basic type and then bash it into a string type. | |
c906108c SS |
1010 | |
1011 | For fixed length strings, the range type contains 0 as the lower | |
1012 | bound and the length of the string minus one as the upper bound. | |
1013 | ||
7ba81444 MS |
1014 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
1015 | sure it is TYPE_CODE_UNDEF before we bash it into a string | |
1016 | type? */ | |
c906108c SS |
1017 | |
1018 | struct type * | |
3b7538c0 UW |
1019 | create_string_type (struct type *result_type, |
1020 | struct type *string_char_type, | |
7ba81444 | 1021 | struct type *range_type) |
c906108c SS |
1022 | { |
1023 | result_type = create_array_type (result_type, | |
f290d38e | 1024 | string_char_type, |
c906108c SS |
1025 | range_type); |
1026 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
c16abbde | 1027 | return result_type; |
c906108c SS |
1028 | } |
1029 | ||
e3506a9f UW |
1030 | struct type * |
1031 | lookup_string_range_type (struct type *string_char_type, | |
63375b74 | 1032 | LONGEST low_bound, LONGEST high_bound) |
e3506a9f UW |
1033 | { |
1034 | struct type *result_type; | |
d8734c88 | 1035 | |
e3506a9f UW |
1036 | result_type = lookup_array_range_type (string_char_type, |
1037 | low_bound, high_bound); | |
1038 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
1039 | return result_type; | |
1040 | } | |
1041 | ||
c906108c | 1042 | struct type * |
fba45db2 | 1043 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c | 1044 | { |
c906108c | 1045 | if (result_type == NULL) |
e9bb382b UW |
1046 | result_type = alloc_type_copy (domain_type); |
1047 | ||
c906108c SS |
1048 | TYPE_CODE (result_type) = TYPE_CODE_SET; |
1049 | TYPE_NFIELDS (result_type) = 1; | |
1deafd4e | 1050 | TYPE_FIELDS (result_type) = TYPE_ZALLOC (result_type, sizeof (struct field)); |
c906108c | 1051 | |
74a9bb82 | 1052 | if (!TYPE_STUB (domain_type)) |
c906108c | 1053 | { |
f9780d5b | 1054 | LONGEST low_bound, high_bound, bit_length; |
d8734c88 | 1055 | |
c906108c SS |
1056 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
1057 | low_bound = high_bound = 0; | |
1058 | bit_length = high_bound - low_bound + 1; | |
1059 | TYPE_LENGTH (result_type) | |
1060 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
f9780d5b | 1061 | if (low_bound >= 0) |
876cecd0 | 1062 | TYPE_UNSIGNED (result_type) = 1; |
c906108c SS |
1063 | } |
1064 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
1065 | ||
c16abbde | 1066 | return result_type; |
c906108c SS |
1067 | } |
1068 | ||
ea37ba09 DJ |
1069 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
1070 | and any array types nested inside it. */ | |
1071 | ||
1072 | void | |
1073 | make_vector_type (struct type *array_type) | |
1074 | { | |
1075 | struct type *inner_array, *elt_type; | |
1076 | int flags; | |
1077 | ||
1078 | /* Find the innermost array type, in case the array is | |
1079 | multi-dimensional. */ | |
1080 | inner_array = array_type; | |
1081 | while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY) | |
1082 | inner_array = TYPE_TARGET_TYPE (inner_array); | |
1083 | ||
1084 | elt_type = TYPE_TARGET_TYPE (inner_array); | |
1085 | if (TYPE_CODE (elt_type) == TYPE_CODE_INT) | |
1086 | { | |
2844d6b5 | 1087 | flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_INSTANCE_FLAG_NOTTEXT; |
ea37ba09 DJ |
1088 | elt_type = make_qualified_type (elt_type, flags, NULL); |
1089 | TYPE_TARGET_TYPE (inner_array) = elt_type; | |
1090 | } | |
1091 | ||
876cecd0 | 1092 | TYPE_VECTOR (array_type) = 1; |
ea37ba09 DJ |
1093 | } |
1094 | ||
794ac428 | 1095 | struct type * |
ac3aafc7 EZ |
1096 | init_vector_type (struct type *elt_type, int n) |
1097 | { | |
1098 | struct type *array_type; | |
d8734c88 | 1099 | |
e3506a9f | 1100 | array_type = lookup_array_range_type (elt_type, 0, n - 1); |
ea37ba09 | 1101 | make_vector_type (array_type); |
ac3aafc7 EZ |
1102 | return array_type; |
1103 | } | |
1104 | ||
0d5de010 DJ |
1105 | /* Smash TYPE to be a type of pointers to members of DOMAIN with type |
1106 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a | |
1107 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
1108 | TYPE doesn't include the offset (that's the value of the MEMBER | |
1109 | itself), but does include the structure type into which it points | |
1110 | (for some reason). | |
c906108c | 1111 | |
7ba81444 MS |
1112 | When "smashing" the type, we preserve the objfile that the old type |
1113 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1114 | allocated. */ |
1115 | ||
1116 | void | |
0d5de010 DJ |
1117 | smash_to_memberptr_type (struct type *type, struct type *domain, |
1118 | struct type *to_type) | |
c906108c | 1119 | { |
2fdde8f8 | 1120 | smash_type (type); |
c906108c SS |
1121 | TYPE_TARGET_TYPE (type) = to_type; |
1122 | TYPE_DOMAIN_TYPE (type) = domain; | |
0d5de010 DJ |
1123 | /* Assume that a data member pointer is the same size as a normal |
1124 | pointer. */ | |
50810684 UW |
1125 | TYPE_LENGTH (type) |
1126 | = gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT; | |
0d5de010 | 1127 | TYPE_CODE (type) = TYPE_CODE_MEMBERPTR; |
c906108c SS |
1128 | } |
1129 | ||
0b92b5bb TT |
1130 | /* Smash TYPE to be a type of pointer to methods type TO_TYPE. |
1131 | ||
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 | |
1134 | allocated. */ | |
1135 | ||
1136 | void | |
1137 | smash_to_methodptr_type (struct type *type, struct type *to_type) | |
1138 | { | |
1139 | smash_type (type); | |
1140 | TYPE_TARGET_TYPE (type) = to_type; | |
1141 | TYPE_DOMAIN_TYPE (type) = TYPE_DOMAIN_TYPE (to_type); | |
1142 | TYPE_LENGTH (type) = cplus_method_ptr_size (to_type); | |
1143 | TYPE_CODE (type) = TYPE_CODE_METHODPTR; | |
1144 | } | |
1145 | ||
c906108c SS |
1146 | /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE. |
1147 | METHOD just means `function that gets an extra "this" argument'. | |
1148 | ||
7ba81444 MS |
1149 | When "smashing" the type, we preserve the objfile that the old type |
1150 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1151 | allocated. */ |
1152 | ||
1153 | void | |
fba45db2 | 1154 | smash_to_method_type (struct type *type, struct type *domain, |
ad2f7632 DJ |
1155 | struct type *to_type, struct field *args, |
1156 | int nargs, int varargs) | |
c906108c | 1157 | { |
2fdde8f8 | 1158 | smash_type (type); |
c906108c SS |
1159 | TYPE_TARGET_TYPE (type) = to_type; |
1160 | TYPE_DOMAIN_TYPE (type) = domain; | |
ad2f7632 DJ |
1161 | TYPE_FIELDS (type) = args; |
1162 | TYPE_NFIELDS (type) = nargs; | |
1163 | if (varargs) | |
876cecd0 | 1164 | TYPE_VARARGS (type) = 1; |
c906108c SS |
1165 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
1166 | TYPE_CODE (type) = TYPE_CODE_METHOD; | |
1167 | } | |
1168 | ||
1169 | /* Return a typename for a struct/union/enum type without "struct ", | |
1170 | "union ", or "enum ". If the type has a NULL name, return NULL. */ | |
1171 | ||
0d5cff50 | 1172 | const char * |
aa1ee363 | 1173 | type_name_no_tag (const struct type *type) |
c906108c SS |
1174 | { |
1175 | if (TYPE_TAG_NAME (type) != NULL) | |
1176 | return TYPE_TAG_NAME (type); | |
1177 | ||
7ba81444 MS |
1178 | /* Is there code which expects this to return the name if there is |
1179 | no tag name? My guess is that this is mainly used for C++ in | |
1180 | cases where the two will always be the same. */ | |
c906108c SS |
1181 | return TYPE_NAME (type); |
1182 | } | |
1183 | ||
d8228535 JK |
1184 | /* A wrapper of type_name_no_tag which calls error if the type is anonymous. |
1185 | Since GCC PR debug/47510 DWARF provides associated information to detect the | |
1186 | anonymous class linkage name from its typedef. | |
1187 | ||
1188 | Parameter TYPE should not yet have CHECK_TYPEDEF applied, this function will | |
1189 | apply it itself. */ | |
1190 | ||
1191 | const char * | |
1192 | type_name_no_tag_or_error (struct type *type) | |
1193 | { | |
1194 | struct type *saved_type = type; | |
1195 | const char *name; | |
1196 | struct objfile *objfile; | |
1197 | ||
1198 | CHECK_TYPEDEF (type); | |
1199 | ||
1200 | name = type_name_no_tag (type); | |
1201 | if (name != NULL) | |
1202 | return name; | |
1203 | ||
1204 | name = type_name_no_tag (saved_type); | |
1205 | objfile = TYPE_OBJFILE (saved_type); | |
1206 | error (_("Invalid anonymous type %s [in module %s], GCC PR debug/47510 bug?"), | |
4262abfb JK |
1207 | name ? name : "<anonymous>", |
1208 | objfile ? objfile_name (objfile) : "<arch>"); | |
d8228535 JK |
1209 | } |
1210 | ||
7ba81444 MS |
1211 | /* Lookup a typedef or primitive type named NAME, visible in lexical |
1212 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
1213 | suitably defined. */ | |
c906108c SS |
1214 | |
1215 | struct type * | |
e6c014f2 | 1216 | lookup_typename (const struct language_defn *language, |
ddd49eee | 1217 | struct gdbarch *gdbarch, const char *name, |
34eaf542 | 1218 | const struct block *block, int noerr) |
c906108c | 1219 | { |
52f0bd74 | 1220 | struct symbol *sym; |
659c9f3a | 1221 | struct type *type; |
c906108c | 1222 | |
774b6a14 | 1223 | sym = lookup_symbol (name, block, VAR_DOMAIN, 0); |
c51fe631 DE |
1224 | if (sym != NULL && SYMBOL_CLASS (sym) == LOC_TYPEDEF) |
1225 | return SYMBOL_TYPE (sym); | |
1226 | ||
659c9f3a DE |
1227 | type = language_lookup_primitive_type_by_name (language, gdbarch, name); |
1228 | if (type) | |
1229 | return type; | |
c51fe631 DE |
1230 | |
1231 | if (noerr) | |
1232 | return NULL; | |
1233 | error (_("No type named %s."), name); | |
c906108c SS |
1234 | } |
1235 | ||
1236 | struct type * | |
e6c014f2 | 1237 | lookup_unsigned_typename (const struct language_defn *language, |
0d5cff50 | 1238 | struct gdbarch *gdbarch, const char *name) |
c906108c SS |
1239 | { |
1240 | char *uns = alloca (strlen (name) + 10); | |
1241 | ||
1242 | strcpy (uns, "unsigned "); | |
1243 | strcpy (uns + 9, name); | |
e6c014f2 | 1244 | return lookup_typename (language, gdbarch, uns, (struct block *) NULL, 0); |
c906108c SS |
1245 | } |
1246 | ||
1247 | struct type * | |
e6c014f2 | 1248 | lookup_signed_typename (const struct language_defn *language, |
0d5cff50 | 1249 | struct gdbarch *gdbarch, const char *name) |
c906108c SS |
1250 | { |
1251 | struct type *t; | |
1252 | char *uns = alloca (strlen (name) + 8); | |
1253 | ||
1254 | strcpy (uns, "signed "); | |
1255 | strcpy (uns + 7, name); | |
e6c014f2 | 1256 | t = lookup_typename (language, gdbarch, uns, (struct block *) NULL, 1); |
7ba81444 | 1257 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
c906108c SS |
1258 | if (t != NULL) |
1259 | return t; | |
e6c014f2 | 1260 | return lookup_typename (language, gdbarch, name, (struct block *) NULL, 0); |
c906108c SS |
1261 | } |
1262 | ||
1263 | /* Lookup a structure type named "struct NAME", | |
1264 | visible in lexical block BLOCK. */ | |
1265 | ||
1266 | struct type * | |
270140bd | 1267 | lookup_struct (const char *name, const struct block *block) |
c906108c | 1268 | { |
52f0bd74 | 1269 | struct symbol *sym; |
c906108c | 1270 | |
2570f2b7 | 1271 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1272 | |
1273 | if (sym == NULL) | |
1274 | { | |
8a3fe4f8 | 1275 | error (_("No struct type named %s."), name); |
c906108c SS |
1276 | } |
1277 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1278 | { | |
7ba81444 MS |
1279 | error (_("This context has class, union or enum %s, not a struct."), |
1280 | name); | |
c906108c SS |
1281 | } |
1282 | return (SYMBOL_TYPE (sym)); | |
1283 | } | |
1284 | ||
1285 | /* Lookup a union type named "union NAME", | |
1286 | visible in lexical block BLOCK. */ | |
1287 | ||
1288 | struct type * | |
270140bd | 1289 | lookup_union (const char *name, const struct block *block) |
c906108c | 1290 | { |
52f0bd74 | 1291 | struct symbol *sym; |
c5aa993b | 1292 | struct type *t; |
c906108c | 1293 | |
2570f2b7 | 1294 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1295 | |
1296 | if (sym == NULL) | |
8a3fe4f8 | 1297 | error (_("No union type named %s."), name); |
c906108c | 1298 | |
c5aa993b | 1299 | t = SYMBOL_TYPE (sym); |
c906108c SS |
1300 | |
1301 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
c16abbde | 1302 | return t; |
c906108c | 1303 | |
7ba81444 MS |
1304 | /* If we get here, it's not a union. */ |
1305 | error (_("This context has class, struct or enum %s, not a union."), | |
1306 | name); | |
c906108c SS |
1307 | } |
1308 | ||
c906108c SS |
1309 | /* Lookup an enum type named "enum NAME", |
1310 | visible in lexical block BLOCK. */ | |
1311 | ||
1312 | struct type * | |
270140bd | 1313 | lookup_enum (const char *name, const struct block *block) |
c906108c | 1314 | { |
52f0bd74 | 1315 | struct symbol *sym; |
c906108c | 1316 | |
2570f2b7 | 1317 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1318 | if (sym == NULL) |
1319 | { | |
8a3fe4f8 | 1320 | error (_("No enum type named %s."), name); |
c906108c SS |
1321 | } |
1322 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
1323 | { | |
7ba81444 MS |
1324 | error (_("This context has class, struct or union %s, not an enum."), |
1325 | name); | |
c906108c SS |
1326 | } |
1327 | return (SYMBOL_TYPE (sym)); | |
1328 | } | |
1329 | ||
1330 | /* Lookup a template type named "template NAME<TYPE>", | |
1331 | visible in lexical block BLOCK. */ | |
1332 | ||
1333 | struct type * | |
7ba81444 | 1334 | lookup_template_type (char *name, struct type *type, |
270140bd | 1335 | const struct block *block) |
c906108c SS |
1336 | { |
1337 | struct symbol *sym; | |
7ba81444 MS |
1338 | char *nam = (char *) |
1339 | alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4); | |
d8734c88 | 1340 | |
c906108c SS |
1341 | strcpy (nam, name); |
1342 | strcat (nam, "<"); | |
0004e5a2 | 1343 | strcat (nam, TYPE_NAME (type)); |
0963b4bd | 1344 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1345 | |
2570f2b7 | 1346 | sym = lookup_symbol (nam, block, VAR_DOMAIN, 0); |
c906108c SS |
1347 | |
1348 | if (sym == NULL) | |
1349 | { | |
8a3fe4f8 | 1350 | error (_("No template type named %s."), name); |
c906108c SS |
1351 | } |
1352 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1353 | { | |
7ba81444 MS |
1354 | error (_("This context has class, union or enum %s, not a struct."), |
1355 | name); | |
c906108c SS |
1356 | } |
1357 | return (SYMBOL_TYPE (sym)); | |
1358 | } | |
1359 | ||
7ba81444 MS |
1360 | /* Given a type TYPE, lookup the type of the component of type named |
1361 | NAME. | |
c906108c | 1362 | |
7ba81444 MS |
1363 | TYPE can be either a struct or union, or a pointer or reference to |
1364 | a struct or union. If it is a pointer or reference, its target | |
1365 | type is automatically used. Thus '.' and '->' are interchangable, | |
1366 | as specified for the definitions of the expression element types | |
1367 | STRUCTOP_STRUCT and STRUCTOP_PTR. | |
c906108c SS |
1368 | |
1369 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
1370 | If NAME is the name of a baseclass type, return that type. */ | |
1371 | ||
1372 | struct type * | |
d7561cbb | 1373 | lookup_struct_elt_type (struct type *type, const char *name, int noerr) |
c906108c SS |
1374 | { |
1375 | int i; | |
c92817ce | 1376 | char *typename; |
c906108c SS |
1377 | |
1378 | for (;;) | |
1379 | { | |
1380 | CHECK_TYPEDEF (type); | |
1381 | if (TYPE_CODE (type) != TYPE_CODE_PTR | |
1382 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1383 | break; | |
1384 | type = TYPE_TARGET_TYPE (type); | |
1385 | } | |
1386 | ||
687d6395 MS |
1387 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
1388 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
c906108c | 1389 | { |
c92817ce TT |
1390 | typename = type_to_string (type); |
1391 | make_cleanup (xfree, typename); | |
1392 | error (_("Type %s is not a structure or union type."), typename); | |
c906108c SS |
1393 | } |
1394 | ||
1395 | #if 0 | |
7ba81444 MS |
1396 | /* FIXME: This change put in by Michael seems incorrect for the case |
1397 | where the structure tag name is the same as the member name. | |
0963b4bd | 1398 | I.e. when doing "ptype bell->bar" for "struct foo { int bar; int |
7ba81444 | 1399 | foo; } bell;" Disabled by fnf. */ |
c906108c SS |
1400 | { |
1401 | char *typename; | |
1402 | ||
1403 | typename = type_name_no_tag (type); | |
762f08a3 | 1404 | if (typename != NULL && strcmp (typename, name) == 0) |
c906108c SS |
1405 | return type; |
1406 | } | |
1407 | #endif | |
1408 | ||
1409 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1410 | { | |
0d5cff50 | 1411 | const char *t_field_name = TYPE_FIELD_NAME (type, i); |
c906108c | 1412 | |
db577aea | 1413 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c SS |
1414 | { |
1415 | return TYPE_FIELD_TYPE (type, i); | |
1416 | } | |
f5a010c0 PM |
1417 | else if (!t_field_name || *t_field_name == '\0') |
1418 | { | |
d8734c88 MS |
1419 | struct type *subtype |
1420 | = lookup_struct_elt_type (TYPE_FIELD_TYPE (type, i), name, 1); | |
1421 | ||
f5a010c0 PM |
1422 | if (subtype != NULL) |
1423 | return subtype; | |
1424 | } | |
c906108c SS |
1425 | } |
1426 | ||
1427 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1428 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1429 | { | |
1430 | struct type *t; | |
1431 | ||
9733fc94 | 1432 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 1); |
c906108c SS |
1433 | if (t != NULL) |
1434 | { | |
1435 | return t; | |
1436 | } | |
1437 | } | |
1438 | ||
1439 | if (noerr) | |
1440 | { | |
1441 | return NULL; | |
1442 | } | |
c5aa993b | 1443 | |
c92817ce TT |
1444 | typename = type_to_string (type); |
1445 | make_cleanup (xfree, typename); | |
1446 | error (_("Type %s has no component named %s."), typename, name); | |
c906108c SS |
1447 | } |
1448 | ||
ed3ef339 DE |
1449 | /* Store in *MAX the largest number representable by unsigned integer type |
1450 | TYPE. */ | |
1451 | ||
1452 | void | |
1453 | get_unsigned_type_max (struct type *type, ULONGEST *max) | |
1454 | { | |
1455 | unsigned int n; | |
1456 | ||
1457 | CHECK_TYPEDEF (type); | |
1458 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && TYPE_UNSIGNED (type)); | |
1459 | gdb_assert (TYPE_LENGTH (type) <= sizeof (ULONGEST)); | |
1460 | ||
1461 | /* Written this way to avoid overflow. */ | |
1462 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1463 | *max = ((((ULONGEST) 1 << (n - 1)) - 1) << 1) | 1; | |
1464 | } | |
1465 | ||
1466 | /* Store in *MIN, *MAX the smallest and largest numbers representable by | |
1467 | signed integer type TYPE. */ | |
1468 | ||
1469 | void | |
1470 | get_signed_type_minmax (struct type *type, LONGEST *min, LONGEST *max) | |
1471 | { | |
1472 | unsigned int n; | |
1473 | ||
1474 | CHECK_TYPEDEF (type); | |
1475 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_INT && !TYPE_UNSIGNED (type)); | |
1476 | gdb_assert (TYPE_LENGTH (type) <= sizeof (LONGEST)); | |
1477 | ||
1478 | n = TYPE_LENGTH (type) * TARGET_CHAR_BIT; | |
1479 | *min = -((ULONGEST) 1 << (n - 1)); | |
1480 | *max = ((ULONGEST) 1 << (n - 1)) - 1; | |
1481 | } | |
1482 | ||
81fe8080 DE |
1483 | /* Lookup the vptr basetype/fieldno values for TYPE. |
1484 | If found store vptr_basetype in *BASETYPEP if non-NULL, and return | |
1485 | vptr_fieldno. Also, if found and basetype is from the same objfile, | |
1486 | cache the results. | |
1487 | If not found, return -1 and ignore BASETYPEP. | |
1488 | Callers should be aware that in some cases (for example, | |
c906108c | 1489 | the type or one of its baseclasses is a stub type and we are |
d48cc9dd DJ |
1490 | debugging a .o file, or the compiler uses DWARF-2 and is not GCC), |
1491 | this function will not be able to find the | |
7ba81444 | 1492 | virtual function table pointer, and vptr_fieldno will remain -1 and |
81fe8080 | 1493 | vptr_basetype will remain NULL or incomplete. */ |
c906108c | 1494 | |
81fe8080 DE |
1495 | int |
1496 | get_vptr_fieldno (struct type *type, struct type **basetypep) | |
c906108c SS |
1497 | { |
1498 | CHECK_TYPEDEF (type); | |
1499 | ||
1500 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1501 | { | |
1502 | int i; | |
1503 | ||
7ba81444 MS |
1504 | /* We must start at zero in case the first (and only) baseclass |
1505 | is virtual (and hence we cannot share the table pointer). */ | |
c906108c SS |
1506 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1507 | { | |
81fe8080 DE |
1508 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
1509 | int fieldno; | |
1510 | struct type *basetype; | |
1511 | ||
1512 | fieldno = get_vptr_fieldno (baseclass, &basetype); | |
1513 | if (fieldno >= 0) | |
c906108c | 1514 | { |
81fe8080 | 1515 | /* If the type comes from a different objfile we can't cache |
0963b4bd | 1516 | it, it may have a different lifetime. PR 2384 */ |
5ef73790 | 1517 | if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype)) |
81fe8080 DE |
1518 | { |
1519 | TYPE_VPTR_FIELDNO (type) = fieldno; | |
1520 | TYPE_VPTR_BASETYPE (type) = basetype; | |
1521 | } | |
1522 | if (basetypep) | |
1523 | *basetypep = basetype; | |
1524 | return fieldno; | |
c906108c SS |
1525 | } |
1526 | } | |
81fe8080 DE |
1527 | |
1528 | /* Not found. */ | |
1529 | return -1; | |
1530 | } | |
1531 | else | |
1532 | { | |
1533 | if (basetypep) | |
1534 | *basetypep = TYPE_VPTR_BASETYPE (type); | |
1535 | return TYPE_VPTR_FIELDNO (type); | |
c906108c SS |
1536 | } |
1537 | } | |
1538 | ||
44e1a9eb DJ |
1539 | static void |
1540 | stub_noname_complaint (void) | |
1541 | { | |
e2e0b3e5 | 1542 | complaint (&symfile_complaints, _("stub type has NULL name")); |
44e1a9eb DJ |
1543 | } |
1544 | ||
92163a10 JK |
1545 | /* Find the real type of TYPE. This function returns the real type, |
1546 | after removing all layers of typedefs, and completing opaque or stub | |
1547 | types. Completion changes the TYPE argument, but stripping of | |
1548 | typedefs does not. | |
1549 | ||
1550 | Instance flags (e.g. const/volatile) are preserved as typedefs are | |
1551 | stripped. If necessary a new qualified form of the underlying type | |
1552 | is created. | |
1553 | ||
1554 | NOTE: This will return a typedef if TYPE_TARGET_TYPE for the typedef has | |
1555 | not been computed and we're either in the middle of reading symbols, or | |
1556 | there was no name for the typedef in the debug info. | |
1557 | ||
9bc118a5 DE |
1558 | NOTE: Lookup of opaque types can throw errors for invalid symbol files. |
1559 | QUITs in the symbol reading code can also throw. | |
1560 | Thus this function can throw an exception. | |
1561 | ||
92163a10 JK |
1562 | If TYPE is a TYPE_CODE_TYPEDEF, its length is updated to the length of |
1563 | the target type. | |
c906108c SS |
1564 | |
1565 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
0963b4bd | 1566 | we can find a full definition in some other file. If so, copy this |
7ba81444 MS |
1567 | definition, so we can use it in future. There used to be a comment |
1568 | (but not any code) that if we don't find a full definition, we'd | |
1569 | set a flag so we don't spend time in the future checking the same | |
1570 | type. That would be a mistake, though--we might load in more | |
92163a10 | 1571 | symbols which contain a full definition for the type. */ |
c906108c SS |
1572 | |
1573 | struct type * | |
a02fd225 | 1574 | check_typedef (struct type *type) |
c906108c SS |
1575 | { |
1576 | struct type *orig_type = type; | |
92163a10 JK |
1577 | /* While we're removing typedefs, we don't want to lose qualifiers. |
1578 | E.g., const/volatile. */ | |
1579 | int instance_flags = TYPE_INSTANCE_FLAGS (type); | |
a02fd225 | 1580 | |
423c0af8 MS |
1581 | gdb_assert (type); |
1582 | ||
c906108c SS |
1583 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
1584 | { | |
1585 | if (!TYPE_TARGET_TYPE (type)) | |
1586 | { | |
0d5cff50 | 1587 | const char *name; |
c906108c SS |
1588 | struct symbol *sym; |
1589 | ||
1590 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 1591 | reading a symtab. Infinite recursion is one danger. */ |
c906108c | 1592 | if (currently_reading_symtab) |
92163a10 | 1593 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
1594 | |
1595 | name = type_name_no_tag (type); | |
7ba81444 MS |
1596 | /* FIXME: shouldn't we separately check the TYPE_NAME and |
1597 | the TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or | |
1598 | VAR_DOMAIN as appropriate? (this code was written before | |
1599 | TYPE_NAME and TYPE_TAG_NAME were separate). */ | |
c906108c SS |
1600 | if (name == NULL) |
1601 | { | |
23136709 | 1602 | stub_noname_complaint (); |
92163a10 | 1603 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 1604 | } |
2570f2b7 | 1605 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0); |
c906108c SS |
1606 | if (sym) |
1607 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
7ba81444 | 1608 | else /* TYPE_CODE_UNDEF */ |
e9bb382b | 1609 | TYPE_TARGET_TYPE (type) = alloc_type_arch (get_type_arch (type)); |
c906108c SS |
1610 | } |
1611 | type = TYPE_TARGET_TYPE (type); | |
c906108c | 1612 | |
92163a10 JK |
1613 | /* Preserve the instance flags as we traverse down the typedef chain. |
1614 | ||
1615 | Handling address spaces/classes is nasty, what do we do if there's a | |
1616 | conflict? | |
1617 | E.g., what if an outer typedef marks the type as class_1 and an inner | |
1618 | typedef marks the type as class_2? | |
1619 | This is the wrong place to do such error checking. We leave it to | |
1620 | the code that created the typedef in the first place to flag the | |
1621 | error. We just pick the outer address space (akin to letting the | |
1622 | outer cast in a chain of casting win), instead of assuming | |
1623 | "it can't happen". */ | |
1624 | { | |
1625 | const int ALL_SPACES = (TYPE_INSTANCE_FLAG_CODE_SPACE | |
1626 | | TYPE_INSTANCE_FLAG_DATA_SPACE); | |
1627 | const int ALL_CLASSES = TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL; | |
1628 | int new_instance_flags = TYPE_INSTANCE_FLAGS (type); | |
1629 | ||
1630 | /* Treat code vs data spaces and address classes separately. */ | |
1631 | if ((instance_flags & ALL_SPACES) != 0) | |
1632 | new_instance_flags &= ~ALL_SPACES; | |
1633 | if ((instance_flags & ALL_CLASSES) != 0) | |
1634 | new_instance_flags &= ~ALL_CLASSES; | |
1635 | ||
1636 | instance_flags |= new_instance_flags; | |
1637 | } | |
1638 | } | |
a02fd225 | 1639 | |
7ba81444 MS |
1640 | /* If this is a struct/class/union with no fields, then check |
1641 | whether a full definition exists somewhere else. This is for | |
1642 | systems where a type definition with no fields is issued for such | |
1643 | types, instead of identifying them as stub types in the first | |
1644 | place. */ | |
c5aa993b | 1645 | |
7ba81444 MS |
1646 | if (TYPE_IS_OPAQUE (type) |
1647 | && opaque_type_resolution | |
1648 | && !currently_reading_symtab) | |
c906108c | 1649 | { |
0d5cff50 | 1650 | const char *name = type_name_no_tag (type); |
c5aa993b | 1651 | struct type *newtype; |
d8734c88 | 1652 | |
c906108c SS |
1653 | if (name == NULL) |
1654 | { | |
23136709 | 1655 | stub_noname_complaint (); |
92163a10 | 1656 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
1657 | } |
1658 | newtype = lookup_transparent_type (name); | |
ad766c0a | 1659 | |
c906108c | 1660 | if (newtype) |
ad766c0a | 1661 | { |
7ba81444 MS |
1662 | /* If the resolved type and the stub are in the same |
1663 | objfile, then replace the stub type with the real deal. | |
1664 | But if they're in separate objfiles, leave the stub | |
1665 | alone; we'll just look up the transparent type every time | |
1666 | we call check_typedef. We can't create pointers between | |
1667 | types allocated to different objfiles, since they may | |
1668 | have different lifetimes. Trying to copy NEWTYPE over to | |
1669 | TYPE's objfile is pointless, too, since you'll have to | |
1670 | move over any other types NEWTYPE refers to, which could | |
1671 | be an unbounded amount of stuff. */ | |
ad766c0a | 1672 | if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
92163a10 JK |
1673 | type = make_qualified_type (newtype, |
1674 | TYPE_INSTANCE_FLAGS (type), | |
1675 | type); | |
ad766c0a JB |
1676 | else |
1677 | type = newtype; | |
1678 | } | |
c906108c | 1679 | } |
7ba81444 MS |
1680 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
1681 | types. */ | |
74a9bb82 | 1682 | else if (TYPE_STUB (type) && !currently_reading_symtab) |
c906108c | 1683 | { |
0d5cff50 | 1684 | const char *name = type_name_no_tag (type); |
c906108c | 1685 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
176620f1 | 1686 | TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or VAR_DOMAIN |
7b83ea04 AC |
1687 | as appropriate? (this code was written before TYPE_NAME and |
1688 | TYPE_TAG_NAME were separate). */ | |
c906108c | 1689 | struct symbol *sym; |
d8734c88 | 1690 | |
c906108c SS |
1691 | if (name == NULL) |
1692 | { | |
23136709 | 1693 | stub_noname_complaint (); |
92163a10 | 1694 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 1695 | } |
2570f2b7 | 1696 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0); |
c906108c | 1697 | if (sym) |
c26f2453 JB |
1698 | { |
1699 | /* Same as above for opaque types, we can replace the stub | |
92163a10 | 1700 | with the complete type only if they are in the same |
c26f2453 JB |
1701 | objfile. */ |
1702 | if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type)) | |
92163a10 JK |
1703 | type = make_qualified_type (SYMBOL_TYPE (sym), |
1704 | TYPE_INSTANCE_FLAGS (type), | |
1705 | type); | |
c26f2453 JB |
1706 | else |
1707 | type = SYMBOL_TYPE (sym); | |
1708 | } | |
c906108c SS |
1709 | } |
1710 | ||
74a9bb82 | 1711 | if (TYPE_TARGET_STUB (type)) |
c906108c SS |
1712 | { |
1713 | struct type *range_type; | |
1714 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1715 | ||
74a9bb82 | 1716 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
c5aa993b | 1717 | { |
73e2eb35 | 1718 | /* Nothing we can do. */ |
c5aa993b | 1719 | } |
c906108c SS |
1720 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY |
1721 | && TYPE_NFIELDS (type) == 1 | |
262452ec | 1722 | && (TYPE_CODE (range_type = TYPE_INDEX_TYPE (type)) |
c906108c SS |
1723 | == TYPE_CODE_RANGE)) |
1724 | { | |
1725 | /* Now recompute the length of the array type, based on its | |
ab0d6e0d JB |
1726 | number of elements and the target type's length. |
1727 | Watch out for Ada null Ada arrays where the high bound | |
0963b4bd | 1728 | is smaller than the low bound. */ |
43bbcdc2 PH |
1729 | const LONGEST low_bound = TYPE_LOW_BOUND (range_type); |
1730 | const LONGEST high_bound = TYPE_HIGH_BOUND (range_type); | |
1731 | ULONGEST len; | |
1732 | ||
ab0d6e0d | 1733 | if (high_bound < low_bound) |
43bbcdc2 | 1734 | len = 0; |
d8734c88 MS |
1735 | else |
1736 | { | |
1737 | /* For now, we conservatively take the array length to be 0 | |
1738 | if its length exceeds UINT_MAX. The code below assumes | |
1739 | that for x < 0, (ULONGEST) x == -x + ULONGEST_MAX + 1, | |
1740 | which is technically not guaranteed by C, but is usually true | |
1741 | (because it would be true if x were unsigned with its | |
0963b4bd | 1742 | high-order bit on). It uses the fact that |
d8734c88 MS |
1743 | high_bound-low_bound is always representable in |
1744 | ULONGEST and that if high_bound-low_bound+1 overflows, | |
1745 | it overflows to 0. We must change these tests if we | |
1746 | decide to increase the representation of TYPE_LENGTH | |
0963b4bd | 1747 | from unsigned int to ULONGEST. */ |
d8734c88 MS |
1748 | ULONGEST ulow = low_bound, uhigh = high_bound; |
1749 | ULONGEST tlen = TYPE_LENGTH (target_type); | |
1750 | ||
1751 | len = tlen * (uhigh - ulow + 1); | |
1752 | if (tlen == 0 || (len / tlen - 1 + ulow) != uhigh | |
1753 | || len > UINT_MAX) | |
1754 | len = 0; | |
1755 | } | |
43bbcdc2 | 1756 | TYPE_LENGTH (type) = len; |
876cecd0 | 1757 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
1758 | } |
1759 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) | |
1760 | { | |
1761 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
876cecd0 | 1762 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
1763 | } |
1764 | } | |
92163a10 JK |
1765 | |
1766 | type = make_qualified_type (type, instance_flags, NULL); | |
1767 | ||
7ba81444 | 1768 | /* Cache TYPE_LENGTH for future use. */ |
c906108c | 1769 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
92163a10 | 1770 | |
c906108c SS |
1771 | return type; |
1772 | } | |
1773 | ||
7ba81444 | 1774 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
48319d1f | 1775 | occurs, silently return a void type. */ |
c91ecb25 | 1776 | |
b9362cc7 | 1777 | static struct type * |
48319d1f | 1778 | safe_parse_type (struct gdbarch *gdbarch, char *p, int length) |
c91ecb25 ND |
1779 | { |
1780 | struct ui_file *saved_gdb_stderr; | |
34365054 | 1781 | struct type *type = NULL; /* Initialize to keep gcc happy. */ |
8e7b59a5 | 1782 | volatile struct gdb_exception except; |
c91ecb25 | 1783 | |
7ba81444 | 1784 | /* Suppress error messages. */ |
c91ecb25 ND |
1785 | saved_gdb_stderr = gdb_stderr; |
1786 | gdb_stderr = ui_file_new (); | |
1787 | ||
7ba81444 | 1788 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
8e7b59a5 KS |
1789 | TRY_CATCH (except, RETURN_MASK_ERROR) |
1790 | { | |
1791 | type = parse_and_eval_type (p, length); | |
1792 | } | |
1793 | ||
1794 | if (except.reason < 0) | |
48319d1f | 1795 | type = builtin_type (gdbarch)->builtin_void; |
c91ecb25 | 1796 | |
7ba81444 | 1797 | /* Stop suppressing error messages. */ |
c91ecb25 ND |
1798 | ui_file_delete (gdb_stderr); |
1799 | gdb_stderr = saved_gdb_stderr; | |
1800 | ||
1801 | return type; | |
1802 | } | |
1803 | ||
c906108c SS |
1804 | /* Ugly hack to convert method stubs into method types. |
1805 | ||
7ba81444 MS |
1806 | He ain't kiddin'. This demangles the name of the method into a |
1807 | string including argument types, parses out each argument type, | |
1808 | generates a string casting a zero to that type, evaluates the | |
1809 | string, and stuffs the resulting type into an argtype vector!!! | |
1810 | Then it knows the type of the whole function (including argument | |
1811 | types for overloading), which info used to be in the stab's but was | |
1812 | removed to hack back the space required for them. */ | |
c906108c | 1813 | |
de17c821 | 1814 | static void |
fba45db2 | 1815 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c | 1816 | { |
50810684 | 1817 | struct gdbarch *gdbarch = get_type_arch (type); |
c906108c SS |
1818 | struct fn_field *f; |
1819 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
8de20a37 TT |
1820 | char *demangled_name = gdb_demangle (mangled_name, |
1821 | DMGL_PARAMS | DMGL_ANSI); | |
c906108c SS |
1822 | char *argtypetext, *p; |
1823 | int depth = 0, argcount = 1; | |
ad2f7632 | 1824 | struct field *argtypes; |
c906108c SS |
1825 | struct type *mtype; |
1826 | ||
1827 | /* Make sure we got back a function string that we can use. */ | |
1828 | if (demangled_name) | |
1829 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
1830 | else |
1831 | p = NULL; | |
c906108c SS |
1832 | |
1833 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
1834 | error (_("Internal: Cannot demangle mangled name `%s'."), |
1835 | mangled_name); | |
c906108c SS |
1836 | |
1837 | /* Now, read in the parameters that define this type. */ | |
1838 | p += 1; | |
1839 | argtypetext = p; | |
1840 | while (*p) | |
1841 | { | |
070ad9f0 | 1842 | if (*p == '(' || *p == '<') |
c906108c SS |
1843 | { |
1844 | depth += 1; | |
1845 | } | |
070ad9f0 | 1846 | else if (*p == ')' || *p == '>') |
c906108c SS |
1847 | { |
1848 | depth -= 1; | |
1849 | } | |
1850 | else if (*p == ',' && depth == 0) | |
1851 | { | |
1852 | argcount += 1; | |
1853 | } | |
1854 | ||
1855 | p += 1; | |
1856 | } | |
1857 | ||
ad2f7632 DJ |
1858 | /* If we read one argument and it was ``void'', don't count it. */ |
1859 | if (strncmp (argtypetext, "(void)", 6) == 0) | |
1860 | argcount -= 1; | |
c906108c | 1861 | |
ad2f7632 DJ |
1862 | /* We need one extra slot, for the THIS pointer. */ |
1863 | ||
1864 | argtypes = (struct field *) | |
1865 | TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); | |
c906108c | 1866 | p = argtypetext; |
4a1970e4 DJ |
1867 | |
1868 | /* Add THIS pointer for non-static methods. */ | |
1869 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
1870 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
1871 | argcount = 0; | |
1872 | else | |
1873 | { | |
ad2f7632 | 1874 | argtypes[0].type = lookup_pointer_type (type); |
4a1970e4 DJ |
1875 | argcount = 1; |
1876 | } | |
c906108c | 1877 | |
0963b4bd | 1878 | if (*p != ')') /* () means no args, skip while. */ |
c906108c SS |
1879 | { |
1880 | depth = 0; | |
1881 | while (*p) | |
1882 | { | |
1883 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
1884 | { | |
ad2f7632 DJ |
1885 | /* Avoid parsing of ellipsis, they will be handled below. |
1886 | Also avoid ``void'' as above. */ | |
1887 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 | |
1888 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 1889 | { |
ad2f7632 | 1890 | argtypes[argcount].type = |
48319d1f | 1891 | safe_parse_type (gdbarch, argtypetext, p - argtypetext); |
c906108c SS |
1892 | argcount += 1; |
1893 | } | |
1894 | argtypetext = p + 1; | |
1895 | } | |
1896 | ||
070ad9f0 | 1897 | if (*p == '(' || *p == '<') |
c906108c SS |
1898 | { |
1899 | depth += 1; | |
1900 | } | |
070ad9f0 | 1901 | else if (*p == ')' || *p == '>') |
c906108c SS |
1902 | { |
1903 | depth -= 1; | |
1904 | } | |
1905 | ||
1906 | p += 1; | |
1907 | } | |
1908 | } | |
1909 | ||
c906108c SS |
1910 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
1911 | ||
1912 | /* Now update the old "stub" type into a real type. */ | |
1913 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
1914 | TYPE_DOMAIN_TYPE (mtype) = type; | |
ad2f7632 DJ |
1915 | TYPE_FIELDS (mtype) = argtypes; |
1916 | TYPE_NFIELDS (mtype) = argcount; | |
876cecd0 | 1917 | TYPE_STUB (mtype) = 0; |
c906108c | 1918 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
ad2f7632 | 1919 | if (p[-2] == '.') |
876cecd0 | 1920 | TYPE_VARARGS (mtype) = 1; |
ad2f7632 DJ |
1921 | |
1922 | xfree (demangled_name); | |
c906108c SS |
1923 | } |
1924 | ||
7ba81444 MS |
1925 | /* This is the external interface to check_stub_method, above. This |
1926 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
1927 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
1928 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
1929 | correct. | |
de17c821 DJ |
1930 | |
1931 | This function unfortunately can not die until stabs do. */ | |
1932 | ||
1933 | void | |
1934 | check_stub_method_group (struct type *type, int method_id) | |
1935 | { | |
1936 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
1937 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
f710f4fc | 1938 | int j, found_stub = 0; |
de17c821 DJ |
1939 | |
1940 | for (j = 0; j < len; j++) | |
1941 | if (TYPE_FN_FIELD_STUB (f, j)) | |
1942 | { | |
1943 | found_stub = 1; | |
1944 | check_stub_method (type, method_id, j); | |
1945 | } | |
1946 | ||
7ba81444 MS |
1947 | /* GNU v3 methods with incorrect names were corrected when we read |
1948 | in type information, because it was cheaper to do it then. The | |
1949 | only GNU v2 methods with incorrect method names are operators and | |
1950 | destructors; destructors were also corrected when we read in type | |
1951 | information. | |
de17c821 DJ |
1952 | |
1953 | Therefore the only thing we need to handle here are v2 operator | |
1954 | names. */ | |
1955 | if (found_stub && strncmp (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z", 2) != 0) | |
1956 | { | |
1957 | int ret; | |
1958 | char dem_opname[256]; | |
1959 | ||
7ba81444 MS |
1960 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
1961 | method_id), | |
de17c821 DJ |
1962 | dem_opname, DMGL_ANSI); |
1963 | if (!ret) | |
7ba81444 MS |
1964 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
1965 | method_id), | |
de17c821 DJ |
1966 | dem_opname, 0); |
1967 | if (ret) | |
1968 | TYPE_FN_FIELDLIST_NAME (type, method_id) = xstrdup (dem_opname); | |
1969 | } | |
1970 | } | |
1971 | ||
9655fd1a JK |
1972 | /* Ensure it is in .rodata (if available) by workarounding GCC PR 44690. */ |
1973 | const struct cplus_struct_type cplus_struct_default = { }; | |
c906108c SS |
1974 | |
1975 | void | |
fba45db2 | 1976 | allocate_cplus_struct_type (struct type *type) |
c906108c | 1977 | { |
b4ba55a1 JB |
1978 | if (HAVE_CPLUS_STRUCT (type)) |
1979 | /* Structure was already allocated. Nothing more to do. */ | |
1980 | return; | |
1981 | ||
1982 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF; | |
1983 | TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
1984 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
1985 | *(TYPE_RAW_CPLUS_SPECIFIC (type)) = cplus_struct_default; | |
c906108c SS |
1986 | } |
1987 | ||
b4ba55a1 JB |
1988 | const struct gnat_aux_type gnat_aux_default = |
1989 | { NULL }; | |
1990 | ||
1991 | /* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF, | |
1992 | and allocate the associated gnat-specific data. The gnat-specific | |
1993 | data is also initialized to gnat_aux_default. */ | |
5212577a | 1994 | |
b4ba55a1 JB |
1995 | void |
1996 | allocate_gnat_aux_type (struct type *type) | |
1997 | { | |
1998 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF; | |
1999 | TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) | |
2000 | TYPE_ALLOC (type, sizeof (struct gnat_aux_type)); | |
2001 | *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default; | |
2002 | } | |
2003 | ||
c906108c SS |
2004 | /* Helper function to initialize the standard scalar types. |
2005 | ||
86f62fd7 TT |
2006 | If NAME is non-NULL, then it is used to initialize the type name. |
2007 | Note that NAME is not copied; it is required to have a lifetime at | |
2008 | least as long as OBJFILE. */ | |
c906108c SS |
2009 | |
2010 | struct type * | |
7ba81444 | 2011 | init_type (enum type_code code, int length, int flags, |
748e18ae | 2012 | const char *name, struct objfile *objfile) |
c906108c | 2013 | { |
52f0bd74 | 2014 | struct type *type; |
c906108c SS |
2015 | |
2016 | type = alloc_type (objfile); | |
2017 | TYPE_CODE (type) = code; | |
2018 | TYPE_LENGTH (type) = length; | |
876cecd0 TT |
2019 | |
2020 | gdb_assert (!(flags & (TYPE_FLAG_MIN - 1))); | |
2021 | if (flags & TYPE_FLAG_UNSIGNED) | |
2022 | TYPE_UNSIGNED (type) = 1; | |
2023 | if (flags & TYPE_FLAG_NOSIGN) | |
2024 | TYPE_NOSIGN (type) = 1; | |
2025 | if (flags & TYPE_FLAG_STUB) | |
2026 | TYPE_STUB (type) = 1; | |
2027 | if (flags & TYPE_FLAG_TARGET_STUB) | |
2028 | TYPE_TARGET_STUB (type) = 1; | |
2029 | if (flags & TYPE_FLAG_STATIC) | |
2030 | TYPE_STATIC (type) = 1; | |
2031 | if (flags & TYPE_FLAG_PROTOTYPED) | |
2032 | TYPE_PROTOTYPED (type) = 1; | |
2033 | if (flags & TYPE_FLAG_INCOMPLETE) | |
2034 | TYPE_INCOMPLETE (type) = 1; | |
2035 | if (flags & TYPE_FLAG_VARARGS) | |
2036 | TYPE_VARARGS (type) = 1; | |
2037 | if (flags & TYPE_FLAG_VECTOR) | |
2038 | TYPE_VECTOR (type) = 1; | |
2039 | if (flags & TYPE_FLAG_STUB_SUPPORTED) | |
2040 | TYPE_STUB_SUPPORTED (type) = 1; | |
876cecd0 TT |
2041 | if (flags & TYPE_FLAG_FIXED_INSTANCE) |
2042 | TYPE_FIXED_INSTANCE (type) = 1; | |
0875794a JK |
2043 | if (flags & TYPE_FLAG_GNU_IFUNC) |
2044 | TYPE_GNU_IFUNC (type) = 1; | |
876cecd0 | 2045 | |
86f62fd7 | 2046 | TYPE_NAME (type) = name; |
c906108c SS |
2047 | |
2048 | /* C++ fancies. */ | |
2049 | ||
973ccf8b | 2050 | if (name && strcmp (name, "char") == 0) |
876cecd0 | 2051 | TYPE_NOSIGN (type) = 1; |
973ccf8b | 2052 | |
b4ba55a1 | 2053 | switch (code) |
c906108c | 2054 | { |
b4ba55a1 JB |
2055 | case TYPE_CODE_STRUCT: |
2056 | case TYPE_CODE_UNION: | |
2057 | case TYPE_CODE_NAMESPACE: | |
2058 | INIT_CPLUS_SPECIFIC (type); | |
2059 | break; | |
2060 | case TYPE_CODE_FLT: | |
2061 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT; | |
2062 | break; | |
2063 | case TYPE_CODE_FUNC: | |
b6cdc2c1 | 2064 | INIT_FUNC_SPECIFIC (type); |
b4ba55a1 | 2065 | break; |
c906108c | 2066 | } |
c16abbde | 2067 | return type; |
c906108c | 2068 | } |
5212577a DE |
2069 | \f |
2070 | /* Queries on types. */ | |
c906108c | 2071 | |
c906108c | 2072 | int |
fba45db2 | 2073 | can_dereference (struct type *t) |
c906108c | 2074 | { |
7ba81444 MS |
2075 | /* FIXME: Should we return true for references as well as |
2076 | pointers? */ | |
c906108c SS |
2077 | CHECK_TYPEDEF (t); |
2078 | return | |
2079 | (t != NULL | |
2080 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
2081 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
2082 | } | |
2083 | ||
adf40b2e | 2084 | int |
fba45db2 | 2085 | is_integral_type (struct type *t) |
adf40b2e JM |
2086 | { |
2087 | CHECK_TYPEDEF (t); | |
2088 | return | |
2089 | ((t != NULL) | |
d4f3574e SS |
2090 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
2091 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
4f2aea11 | 2092 | || (TYPE_CODE (t) == TYPE_CODE_FLAGS) |
d4f3574e SS |
2093 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) |
2094 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
2095 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
2096 | } |
2097 | ||
e09342b5 TJB |
2098 | /* Return true if TYPE is scalar. */ |
2099 | ||
2100 | static int | |
2101 | is_scalar_type (struct type *type) | |
2102 | { | |
2103 | CHECK_TYPEDEF (type); | |
2104 | ||
2105 | switch (TYPE_CODE (type)) | |
2106 | { | |
2107 | case TYPE_CODE_ARRAY: | |
2108 | case TYPE_CODE_STRUCT: | |
2109 | case TYPE_CODE_UNION: | |
2110 | case TYPE_CODE_SET: | |
2111 | case TYPE_CODE_STRING: | |
e09342b5 TJB |
2112 | return 0; |
2113 | default: | |
2114 | return 1; | |
2115 | } | |
2116 | } | |
2117 | ||
2118 | /* Return true if T is scalar, or a composite type which in practice has | |
90e4670f TJB |
2119 | the memory layout of a scalar type. E.g., an array or struct with only |
2120 | one scalar element inside it, or a union with only scalar elements. */ | |
e09342b5 TJB |
2121 | |
2122 | int | |
2123 | is_scalar_type_recursive (struct type *t) | |
2124 | { | |
2125 | CHECK_TYPEDEF (t); | |
2126 | ||
2127 | if (is_scalar_type (t)) | |
2128 | return 1; | |
2129 | /* Are we dealing with an array or string of known dimensions? */ | |
2130 | else if ((TYPE_CODE (t) == TYPE_CODE_ARRAY | |
2131 | || TYPE_CODE (t) == TYPE_CODE_STRING) && TYPE_NFIELDS (t) == 1 | |
2132 | && TYPE_CODE (TYPE_INDEX_TYPE (t)) == TYPE_CODE_RANGE) | |
2133 | { | |
2134 | LONGEST low_bound, high_bound; | |
2135 | struct type *elt_type = check_typedef (TYPE_TARGET_TYPE (t)); | |
2136 | ||
2137 | get_discrete_bounds (TYPE_INDEX_TYPE (t), &low_bound, &high_bound); | |
2138 | ||
2139 | return high_bound == low_bound && is_scalar_type_recursive (elt_type); | |
2140 | } | |
2141 | /* Are we dealing with a struct with one element? */ | |
2142 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT && TYPE_NFIELDS (t) == 1) | |
2143 | return is_scalar_type_recursive (TYPE_FIELD_TYPE (t, 0)); | |
2144 | else if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
2145 | { | |
2146 | int i, n = TYPE_NFIELDS (t); | |
2147 | ||
2148 | /* If all elements of the union are scalar, then the union is scalar. */ | |
2149 | for (i = 0; i < n; i++) | |
2150 | if (!is_scalar_type_recursive (TYPE_FIELD_TYPE (t, i))) | |
2151 | return 0; | |
2152 | ||
2153 | return 1; | |
2154 | } | |
2155 | ||
2156 | return 0; | |
2157 | } | |
2158 | ||
4e8f195d TT |
2159 | /* A helper function which returns true if types A and B represent the |
2160 | "same" class type. This is true if the types have the same main | |
2161 | type, or the same name. */ | |
2162 | ||
2163 | int | |
2164 | class_types_same_p (const struct type *a, const struct type *b) | |
2165 | { | |
2166 | return (TYPE_MAIN_TYPE (a) == TYPE_MAIN_TYPE (b) | |
2167 | || (TYPE_NAME (a) && TYPE_NAME (b) | |
2168 | && !strcmp (TYPE_NAME (a), TYPE_NAME (b)))); | |
2169 | } | |
2170 | ||
a9d5ef47 SW |
2171 | /* If BASE is an ancestor of DCLASS return the distance between them. |
2172 | otherwise return -1; | |
2173 | eg: | |
2174 | ||
2175 | class A {}; | |
2176 | class B: public A {}; | |
2177 | class C: public B {}; | |
2178 | class D: C {}; | |
2179 | ||
2180 | distance_to_ancestor (A, A, 0) = 0 | |
2181 | distance_to_ancestor (A, B, 0) = 1 | |
2182 | distance_to_ancestor (A, C, 0) = 2 | |
2183 | distance_to_ancestor (A, D, 0) = 3 | |
2184 | ||
2185 | If PUBLIC is 1 then only public ancestors are considered, | |
2186 | and the function returns the distance only if BASE is a public ancestor | |
2187 | of DCLASS. | |
2188 | Eg: | |
2189 | ||
0963b4bd | 2190 | distance_to_ancestor (A, D, 1) = -1. */ |
c906108c | 2191 | |
0526b37a | 2192 | static int |
a9d5ef47 | 2193 | distance_to_ancestor (struct type *base, struct type *dclass, int public) |
c906108c SS |
2194 | { |
2195 | int i; | |
a9d5ef47 | 2196 | int d; |
c5aa993b | 2197 | |
c906108c SS |
2198 | CHECK_TYPEDEF (base); |
2199 | CHECK_TYPEDEF (dclass); | |
2200 | ||
4e8f195d | 2201 | if (class_types_same_p (base, dclass)) |
a9d5ef47 | 2202 | return 0; |
c906108c SS |
2203 | |
2204 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
4e8f195d | 2205 | { |
0526b37a SW |
2206 | if (public && ! BASETYPE_VIA_PUBLIC (dclass, i)) |
2207 | continue; | |
2208 | ||
a9d5ef47 SW |
2209 | d = distance_to_ancestor (base, TYPE_BASECLASS (dclass, i), public); |
2210 | if (d >= 0) | |
2211 | return 1 + d; | |
4e8f195d | 2212 | } |
c906108c | 2213 | |
a9d5ef47 | 2214 | return -1; |
c906108c | 2215 | } |
4e8f195d | 2216 | |
0526b37a SW |
2217 | /* Check whether BASE is an ancestor or base class or DCLASS |
2218 | Return 1 if so, and 0 if not. | |
2219 | Note: If BASE and DCLASS are of the same type, this function | |
2220 | will return 1. So for some class A, is_ancestor (A, A) will | |
2221 | return 1. */ | |
2222 | ||
2223 | int | |
2224 | is_ancestor (struct type *base, struct type *dclass) | |
2225 | { | |
a9d5ef47 | 2226 | return distance_to_ancestor (base, dclass, 0) >= 0; |
0526b37a SW |
2227 | } |
2228 | ||
4e8f195d TT |
2229 | /* Like is_ancestor, but only returns true when BASE is a public |
2230 | ancestor of DCLASS. */ | |
2231 | ||
2232 | int | |
2233 | is_public_ancestor (struct type *base, struct type *dclass) | |
2234 | { | |
a9d5ef47 | 2235 | return distance_to_ancestor (base, dclass, 1) >= 0; |
4e8f195d TT |
2236 | } |
2237 | ||
2238 | /* A helper function for is_unique_ancestor. */ | |
2239 | ||
2240 | static int | |
2241 | is_unique_ancestor_worker (struct type *base, struct type *dclass, | |
2242 | int *offset, | |
8af8e3bc PA |
2243 | const gdb_byte *valaddr, int embedded_offset, |
2244 | CORE_ADDR address, struct value *val) | |
4e8f195d TT |
2245 | { |
2246 | int i, count = 0; | |
2247 | ||
2248 | CHECK_TYPEDEF (base); | |
2249 | CHECK_TYPEDEF (dclass); | |
2250 | ||
2251 | for (i = 0; i < TYPE_N_BASECLASSES (dclass) && count < 2; ++i) | |
2252 | { | |
8af8e3bc PA |
2253 | struct type *iter; |
2254 | int this_offset; | |
4e8f195d | 2255 | |
8af8e3bc PA |
2256 | iter = check_typedef (TYPE_BASECLASS (dclass, i)); |
2257 | ||
2258 | this_offset = baseclass_offset (dclass, i, valaddr, embedded_offset, | |
2259 | address, val); | |
4e8f195d TT |
2260 | |
2261 | if (class_types_same_p (base, iter)) | |
2262 | { | |
2263 | /* If this is the first subclass, set *OFFSET and set count | |
2264 | to 1. Otherwise, if this is at the same offset as | |
2265 | previous instances, do nothing. Otherwise, increment | |
2266 | count. */ | |
2267 | if (*offset == -1) | |
2268 | { | |
2269 | *offset = this_offset; | |
2270 | count = 1; | |
2271 | } | |
2272 | else if (this_offset == *offset) | |
2273 | { | |
2274 | /* Nothing. */ | |
2275 | } | |
2276 | else | |
2277 | ++count; | |
2278 | } | |
2279 | else | |
2280 | count += is_unique_ancestor_worker (base, iter, offset, | |
8af8e3bc PA |
2281 | valaddr, |
2282 | embedded_offset + this_offset, | |
2283 | address, val); | |
4e8f195d TT |
2284 | } |
2285 | ||
2286 | return count; | |
2287 | } | |
2288 | ||
2289 | /* Like is_ancestor, but only returns true if BASE is a unique base | |
2290 | class of the type of VAL. */ | |
2291 | ||
2292 | int | |
2293 | is_unique_ancestor (struct type *base, struct value *val) | |
2294 | { | |
2295 | int offset = -1; | |
2296 | ||
2297 | return is_unique_ancestor_worker (base, value_type (val), &offset, | |
8af8e3bc PA |
2298 | value_contents_for_printing (val), |
2299 | value_embedded_offset (val), | |
2300 | value_address (val), val) == 1; | |
4e8f195d TT |
2301 | } |
2302 | ||
c906108c | 2303 | \f |
5212577a | 2304 | /* Overload resolution. */ |
c906108c | 2305 | |
6403aeea SW |
2306 | /* Return the sum of the rank of A with the rank of B. */ |
2307 | ||
2308 | struct rank | |
2309 | sum_ranks (struct rank a, struct rank b) | |
2310 | { | |
2311 | struct rank c; | |
2312 | c.rank = a.rank + b.rank; | |
a9d5ef47 | 2313 | c.subrank = a.subrank + b.subrank; |
6403aeea SW |
2314 | return c; |
2315 | } | |
2316 | ||
2317 | /* Compare rank A and B and return: | |
2318 | 0 if a = b | |
2319 | 1 if a is better than b | |
2320 | -1 if b is better than a. */ | |
2321 | ||
2322 | int | |
2323 | compare_ranks (struct rank a, struct rank b) | |
2324 | { | |
2325 | if (a.rank == b.rank) | |
a9d5ef47 SW |
2326 | { |
2327 | if (a.subrank == b.subrank) | |
2328 | return 0; | |
2329 | if (a.subrank < b.subrank) | |
2330 | return 1; | |
2331 | if (a.subrank > b.subrank) | |
2332 | return -1; | |
2333 | } | |
6403aeea SW |
2334 | |
2335 | if (a.rank < b.rank) | |
2336 | return 1; | |
2337 | ||
0963b4bd | 2338 | /* a.rank > b.rank */ |
6403aeea SW |
2339 | return -1; |
2340 | } | |
c5aa993b | 2341 | |
0963b4bd | 2342 | /* Functions for overload resolution begin here. */ |
c906108c SS |
2343 | |
2344 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
2345 | 0 => A and B are identical |
2346 | 1 => A and B are incomparable | |
2347 | 2 => A is better than B | |
2348 | 3 => A is worse than B */ | |
c906108c SS |
2349 | |
2350 | int | |
fba45db2 | 2351 | compare_badness (struct badness_vector *a, struct badness_vector *b) |
c906108c SS |
2352 | { |
2353 | int i; | |
2354 | int tmp; | |
c5aa993b JM |
2355 | short found_pos = 0; /* any positives in c? */ |
2356 | short found_neg = 0; /* any negatives in c? */ | |
2357 | ||
2358 | /* differing lengths => incomparable */ | |
c906108c SS |
2359 | if (a->length != b->length) |
2360 | return 1; | |
2361 | ||
c5aa993b JM |
2362 | /* Subtract b from a */ |
2363 | for (i = 0; i < a->length; i++) | |
c906108c | 2364 | { |
6403aeea | 2365 | tmp = compare_ranks (b->rank[i], a->rank[i]); |
c906108c | 2366 | if (tmp > 0) |
c5aa993b | 2367 | found_pos = 1; |
c906108c | 2368 | else if (tmp < 0) |
c5aa993b | 2369 | found_neg = 1; |
c906108c SS |
2370 | } |
2371 | ||
2372 | if (found_pos) | |
2373 | { | |
2374 | if (found_neg) | |
c5aa993b | 2375 | return 1; /* incomparable */ |
c906108c | 2376 | else |
c5aa993b | 2377 | return 3; /* A > B */ |
c906108c | 2378 | } |
c5aa993b JM |
2379 | else |
2380 | /* no positives */ | |
c906108c SS |
2381 | { |
2382 | if (found_neg) | |
c5aa993b | 2383 | return 2; /* A < B */ |
c906108c | 2384 | else |
c5aa993b | 2385 | return 0; /* A == B */ |
c906108c SS |
2386 | } |
2387 | } | |
2388 | ||
7ba81444 MS |
2389 | /* Rank a function by comparing its parameter types (PARMS, length |
2390 | NPARMS), to the types of an argument list (ARGS, length NARGS). | |
2391 | Return a pointer to a badness vector. This has NARGS + 1 | |
2392 | entries. */ | |
c906108c SS |
2393 | |
2394 | struct badness_vector * | |
7ba81444 | 2395 | rank_function (struct type **parms, int nparms, |
da096638 | 2396 | struct value **args, int nargs) |
c906108c SS |
2397 | { |
2398 | int i; | |
c5aa993b | 2399 | struct badness_vector *bv; |
c906108c SS |
2400 | int min_len = nparms < nargs ? nparms : nargs; |
2401 | ||
2402 | bv = xmalloc (sizeof (struct badness_vector)); | |
0963b4bd | 2403 | bv->length = nargs + 1; /* add 1 for the length-match rank. */ |
c906108c SS |
2404 | bv->rank = xmalloc ((nargs + 1) * sizeof (int)); |
2405 | ||
2406 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 2407 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 2408 | |
c906108c | 2409 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
2410 | arguments and ellipsis parameter lists, we should consider those |
2411 | and rank the length-match more finely. */ | |
c906108c | 2412 | |
6403aeea SW |
2413 | LENGTH_MATCH (bv) = (nargs != nparms) |
2414 | ? LENGTH_MISMATCH_BADNESS | |
2415 | : EXACT_MATCH_BADNESS; | |
c906108c | 2416 | |
0963b4bd | 2417 | /* Now rank all the parameters of the candidate function. */ |
74cc24b0 | 2418 | for (i = 1; i <= min_len; i++) |
da096638 KS |
2419 | bv->rank[i] = rank_one_type (parms[i - 1], value_type (args[i - 1]), |
2420 | args[i - 1]); | |
c906108c | 2421 | |
0963b4bd | 2422 | /* If more arguments than parameters, add dummy entries. */ |
c5aa993b | 2423 | for (i = min_len + 1; i <= nargs; i++) |
c906108c SS |
2424 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
2425 | ||
2426 | return bv; | |
2427 | } | |
2428 | ||
973ccf8b DJ |
2429 | /* Compare the names of two integer types, assuming that any sign |
2430 | qualifiers have been checked already. We do it this way because | |
2431 | there may be an "int" in the name of one of the types. */ | |
2432 | ||
2433 | static int | |
2434 | integer_types_same_name_p (const char *first, const char *second) | |
2435 | { | |
2436 | int first_p, second_p; | |
2437 | ||
7ba81444 MS |
2438 | /* If both are shorts, return 1; if neither is a short, keep |
2439 | checking. */ | |
973ccf8b DJ |
2440 | first_p = (strstr (first, "short") != NULL); |
2441 | second_p = (strstr (second, "short") != NULL); | |
2442 | if (first_p && second_p) | |
2443 | return 1; | |
2444 | if (first_p || second_p) | |
2445 | return 0; | |
2446 | ||
2447 | /* Likewise for long. */ | |
2448 | first_p = (strstr (first, "long") != NULL); | |
2449 | second_p = (strstr (second, "long") != NULL); | |
2450 | if (first_p && second_p) | |
2451 | return 1; | |
2452 | if (first_p || second_p) | |
2453 | return 0; | |
2454 | ||
2455 | /* Likewise for char. */ | |
2456 | first_p = (strstr (first, "char") != NULL); | |
2457 | second_p = (strstr (second, "char") != NULL); | |
2458 | if (first_p && second_p) | |
2459 | return 1; | |
2460 | if (first_p || second_p) | |
2461 | return 0; | |
2462 | ||
2463 | /* They must both be ints. */ | |
2464 | return 1; | |
2465 | } | |
2466 | ||
7062b0a0 SW |
2467 | /* Compares type A to type B returns 1 if the represent the same type |
2468 | 0 otherwise. */ | |
2469 | ||
bd69fc68 | 2470 | int |
7062b0a0 SW |
2471 | types_equal (struct type *a, struct type *b) |
2472 | { | |
2473 | /* Identical type pointers. */ | |
2474 | /* However, this still doesn't catch all cases of same type for b | |
2475 | and a. The reason is that builtin types are different from | |
2476 | the same ones constructed from the object. */ | |
2477 | if (a == b) | |
2478 | return 1; | |
2479 | ||
2480 | /* Resolve typedefs */ | |
2481 | if (TYPE_CODE (a) == TYPE_CODE_TYPEDEF) | |
2482 | a = check_typedef (a); | |
2483 | if (TYPE_CODE (b) == TYPE_CODE_TYPEDEF) | |
2484 | b = check_typedef (b); | |
2485 | ||
2486 | /* If after resolving typedefs a and b are not of the same type | |
2487 | code then they are not equal. */ | |
2488 | if (TYPE_CODE (a) != TYPE_CODE (b)) | |
2489 | return 0; | |
2490 | ||
2491 | /* If a and b are both pointers types or both reference types then | |
2492 | they are equal of the same type iff the objects they refer to are | |
2493 | of the same type. */ | |
2494 | if (TYPE_CODE (a) == TYPE_CODE_PTR | |
2495 | || TYPE_CODE (a) == TYPE_CODE_REF) | |
2496 | return types_equal (TYPE_TARGET_TYPE (a), | |
2497 | TYPE_TARGET_TYPE (b)); | |
2498 | ||
0963b4bd | 2499 | /* Well, damnit, if the names are exactly the same, I'll say they |
7062b0a0 SW |
2500 | are exactly the same. This happens when we generate method |
2501 | stubs. The types won't point to the same address, but they | |
0963b4bd | 2502 | really are the same. */ |
7062b0a0 SW |
2503 | |
2504 | if (TYPE_NAME (a) && TYPE_NAME (b) | |
2505 | && strcmp (TYPE_NAME (a), TYPE_NAME (b)) == 0) | |
2506 | return 1; | |
2507 | ||
2508 | /* Check if identical after resolving typedefs. */ | |
2509 | if (a == b) | |
2510 | return 1; | |
2511 | ||
9ce98649 TT |
2512 | /* Two function types are equal if their argument and return types |
2513 | are equal. */ | |
2514 | if (TYPE_CODE (a) == TYPE_CODE_FUNC) | |
2515 | { | |
2516 | int i; | |
2517 | ||
2518 | if (TYPE_NFIELDS (a) != TYPE_NFIELDS (b)) | |
2519 | return 0; | |
2520 | ||
2521 | if (!types_equal (TYPE_TARGET_TYPE (a), TYPE_TARGET_TYPE (b))) | |
2522 | return 0; | |
2523 | ||
2524 | for (i = 0; i < TYPE_NFIELDS (a); ++i) | |
2525 | if (!types_equal (TYPE_FIELD_TYPE (a, i), TYPE_FIELD_TYPE (b, i))) | |
2526 | return 0; | |
2527 | ||
2528 | return 1; | |
2529 | } | |
2530 | ||
7062b0a0 SW |
2531 | return 0; |
2532 | } | |
ca092b61 DE |
2533 | \f |
2534 | /* Deep comparison of types. */ | |
2535 | ||
2536 | /* An entry in the type-equality bcache. */ | |
2537 | ||
2538 | typedef struct type_equality_entry | |
2539 | { | |
2540 | struct type *type1, *type2; | |
2541 | } type_equality_entry_d; | |
2542 | ||
2543 | DEF_VEC_O (type_equality_entry_d); | |
2544 | ||
2545 | /* A helper function to compare two strings. Returns 1 if they are | |
2546 | the same, 0 otherwise. Handles NULLs properly. */ | |
2547 | ||
2548 | static int | |
2549 | compare_maybe_null_strings (const char *s, const char *t) | |
2550 | { | |
2551 | if (s == NULL && t != NULL) | |
2552 | return 0; | |
2553 | else if (s != NULL && t == NULL) | |
2554 | return 0; | |
2555 | else if (s == NULL && t== NULL) | |
2556 | return 1; | |
2557 | return strcmp (s, t) == 0; | |
2558 | } | |
2559 | ||
2560 | /* A helper function for check_types_worklist that checks two types for | |
2561 | "deep" equality. Returns non-zero if the types are considered the | |
2562 | same, zero otherwise. */ | |
2563 | ||
2564 | static int | |
2565 | check_types_equal (struct type *type1, struct type *type2, | |
2566 | VEC (type_equality_entry_d) **worklist) | |
2567 | { | |
2568 | CHECK_TYPEDEF (type1); | |
2569 | CHECK_TYPEDEF (type2); | |
2570 | ||
2571 | if (type1 == type2) | |
2572 | return 1; | |
2573 | ||
2574 | if (TYPE_CODE (type1) != TYPE_CODE (type2) | |
2575 | || TYPE_LENGTH (type1) != TYPE_LENGTH (type2) | |
2576 | || TYPE_UNSIGNED (type1) != TYPE_UNSIGNED (type2) | |
2577 | || TYPE_NOSIGN (type1) != TYPE_NOSIGN (type2) | |
2578 | || TYPE_VARARGS (type1) != TYPE_VARARGS (type2) | |
2579 | || TYPE_VECTOR (type1) != TYPE_VECTOR (type2) | |
2580 | || TYPE_NOTTEXT (type1) != TYPE_NOTTEXT (type2) | |
2581 | || TYPE_INSTANCE_FLAGS (type1) != TYPE_INSTANCE_FLAGS (type2) | |
2582 | || TYPE_NFIELDS (type1) != TYPE_NFIELDS (type2)) | |
2583 | return 0; | |
2584 | ||
2585 | if (!compare_maybe_null_strings (TYPE_TAG_NAME (type1), | |
2586 | TYPE_TAG_NAME (type2))) | |
2587 | return 0; | |
2588 | if (!compare_maybe_null_strings (TYPE_NAME (type1), TYPE_NAME (type2))) | |
2589 | return 0; | |
2590 | ||
2591 | if (TYPE_CODE (type1) == TYPE_CODE_RANGE) | |
2592 | { | |
2593 | if (memcmp (TYPE_RANGE_DATA (type1), TYPE_RANGE_DATA (type2), | |
2594 | sizeof (*TYPE_RANGE_DATA (type1))) != 0) | |
2595 | return 0; | |
2596 | } | |
2597 | else | |
2598 | { | |
2599 | int i; | |
2600 | ||
2601 | for (i = 0; i < TYPE_NFIELDS (type1); ++i) | |
2602 | { | |
2603 | const struct field *field1 = &TYPE_FIELD (type1, i); | |
2604 | const struct field *field2 = &TYPE_FIELD (type2, i); | |
2605 | struct type_equality_entry entry; | |
2606 | ||
2607 | if (FIELD_ARTIFICIAL (*field1) != FIELD_ARTIFICIAL (*field2) | |
2608 | || FIELD_BITSIZE (*field1) != FIELD_BITSIZE (*field2) | |
2609 | || FIELD_LOC_KIND (*field1) != FIELD_LOC_KIND (*field2)) | |
2610 | return 0; | |
2611 | if (!compare_maybe_null_strings (FIELD_NAME (*field1), | |
2612 | FIELD_NAME (*field2))) | |
2613 | return 0; | |
2614 | switch (FIELD_LOC_KIND (*field1)) | |
2615 | { | |
2616 | case FIELD_LOC_KIND_BITPOS: | |
2617 | if (FIELD_BITPOS (*field1) != FIELD_BITPOS (*field2)) | |
2618 | return 0; | |
2619 | break; | |
2620 | case FIELD_LOC_KIND_ENUMVAL: | |
2621 | if (FIELD_ENUMVAL (*field1) != FIELD_ENUMVAL (*field2)) | |
2622 | return 0; | |
2623 | break; | |
2624 | case FIELD_LOC_KIND_PHYSADDR: | |
2625 | if (FIELD_STATIC_PHYSADDR (*field1) | |
2626 | != FIELD_STATIC_PHYSADDR (*field2)) | |
2627 | return 0; | |
2628 | break; | |
2629 | case FIELD_LOC_KIND_PHYSNAME: | |
2630 | if (!compare_maybe_null_strings (FIELD_STATIC_PHYSNAME (*field1), | |
2631 | FIELD_STATIC_PHYSNAME (*field2))) | |
2632 | return 0; | |
2633 | break; | |
2634 | case FIELD_LOC_KIND_DWARF_BLOCK: | |
2635 | { | |
2636 | struct dwarf2_locexpr_baton *block1, *block2; | |
2637 | ||
2638 | block1 = FIELD_DWARF_BLOCK (*field1); | |
2639 | block2 = FIELD_DWARF_BLOCK (*field2); | |
2640 | if (block1->per_cu != block2->per_cu | |
2641 | || block1->size != block2->size | |
2642 | || memcmp (block1->data, block2->data, block1->size) != 0) | |
2643 | return 0; | |
2644 | } | |
2645 | break; | |
2646 | default: | |
2647 | internal_error (__FILE__, __LINE__, _("Unsupported field kind " | |
2648 | "%d by check_types_equal"), | |
2649 | FIELD_LOC_KIND (*field1)); | |
2650 | } | |
2651 | ||
2652 | entry.type1 = FIELD_TYPE (*field1); | |
2653 | entry.type2 = FIELD_TYPE (*field2); | |
2654 | VEC_safe_push (type_equality_entry_d, *worklist, &entry); | |
2655 | } | |
2656 | } | |
2657 | ||
2658 | if (TYPE_TARGET_TYPE (type1) != NULL) | |
2659 | { | |
2660 | struct type_equality_entry entry; | |
2661 | ||
2662 | if (TYPE_TARGET_TYPE (type2) == NULL) | |
2663 | return 0; | |
2664 | ||
2665 | entry.type1 = TYPE_TARGET_TYPE (type1); | |
2666 | entry.type2 = TYPE_TARGET_TYPE (type2); | |
2667 | VEC_safe_push (type_equality_entry_d, *worklist, &entry); | |
2668 | } | |
2669 | else if (TYPE_TARGET_TYPE (type2) != NULL) | |
2670 | return 0; | |
2671 | ||
2672 | return 1; | |
2673 | } | |
2674 | ||
2675 | /* Check types on a worklist for equality. Returns zero if any pair | |
2676 | is not equal, non-zero if they are all considered equal. */ | |
2677 | ||
2678 | static int | |
2679 | check_types_worklist (VEC (type_equality_entry_d) **worklist, | |
2680 | struct bcache *cache) | |
2681 | { | |
2682 | while (!VEC_empty (type_equality_entry_d, *worklist)) | |
2683 | { | |
2684 | struct type_equality_entry entry; | |
2685 | int added; | |
2686 | ||
2687 | entry = *VEC_last (type_equality_entry_d, *worklist); | |
2688 | VEC_pop (type_equality_entry_d, *worklist); | |
2689 | ||
2690 | /* If the type pair has already been visited, we know it is | |
2691 | ok. */ | |
2692 | bcache_full (&entry, sizeof (entry), cache, &added); | |
2693 | if (!added) | |
2694 | continue; | |
2695 | ||
2696 | if (check_types_equal (entry.type1, entry.type2, worklist) == 0) | |
2697 | return 0; | |
2698 | } | |
7062b0a0 | 2699 | |
ca092b61 DE |
2700 | return 1; |
2701 | } | |
2702 | ||
2703 | /* Return non-zero if types TYPE1 and TYPE2 are equal, as determined by a | |
2704 | "deep comparison". Otherwise return zero. */ | |
2705 | ||
2706 | int | |
2707 | types_deeply_equal (struct type *type1, struct type *type2) | |
2708 | { | |
2709 | volatile struct gdb_exception except; | |
2710 | int result = 0; | |
2711 | struct bcache *cache; | |
2712 | VEC (type_equality_entry_d) *worklist = NULL; | |
2713 | struct type_equality_entry entry; | |
2714 | ||
2715 | gdb_assert (type1 != NULL && type2 != NULL); | |
2716 | ||
2717 | /* Early exit for the simple case. */ | |
2718 | if (type1 == type2) | |
2719 | return 1; | |
2720 | ||
2721 | cache = bcache_xmalloc (NULL, NULL); | |
2722 | ||
2723 | entry.type1 = type1; | |
2724 | entry.type2 = type2; | |
2725 | VEC_safe_push (type_equality_entry_d, worklist, &entry); | |
2726 | ||
2727 | TRY_CATCH (except, RETURN_MASK_ALL) | |
2728 | { | |
2729 | result = check_types_worklist (&worklist, cache); | |
2730 | } | |
2731 | /* check_types_worklist calls several nested helper functions, | |
2732 | some of which can raise a GDB Exception, so we just check | |
2733 | and rethrow here. If there is a GDB exception, a comparison | |
2734 | is not capable (or trusted), so exit. */ | |
2735 | bcache_xfree (cache); | |
2736 | VEC_free (type_equality_entry_d, worklist); | |
2737 | /* Rethrow if there was a problem. */ | |
2738 | if (except.reason < 0) | |
2739 | throw_exception (except); | |
2740 | ||
2741 | return result; | |
2742 | } | |
2743 | \f | |
c906108c SS |
2744 | /* Compare one type (PARM) for compatibility with another (ARG). |
2745 | * PARM is intended to be the parameter type of a function; and | |
2746 | * ARG is the supplied argument's type. This function tests if | |
2747 | * the latter can be converted to the former. | |
da096638 | 2748 | * VALUE is the argument's value or NULL if none (or called recursively) |
c906108c SS |
2749 | * |
2750 | * Return 0 if they are identical types; | |
2751 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 MS |
2752 | * PARM is to ARG. The higher the return value, the worse the match. |
2753 | * Generally the "bad" conversions are all uniformly assigned a 100. */ | |
c906108c | 2754 | |
6403aeea | 2755 | struct rank |
da096638 | 2756 | rank_one_type (struct type *parm, struct type *arg, struct value *value) |
c906108c | 2757 | { |
a9d5ef47 | 2758 | struct rank rank = {0,0}; |
7062b0a0 SW |
2759 | |
2760 | if (types_equal (parm, arg)) | |
6403aeea | 2761 | return EXACT_MATCH_BADNESS; |
c906108c SS |
2762 | |
2763 | /* Resolve typedefs */ | |
2764 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
2765 | parm = check_typedef (parm); | |
2766 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
2767 | arg = check_typedef (arg); | |
2768 | ||
db577aea | 2769 | /* See through references, since we can almost make non-references |
7ba81444 | 2770 | references. */ |
db577aea | 2771 | if (TYPE_CODE (arg) == TYPE_CODE_REF) |
da096638 | 2772 | return (sum_ranks (rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL), |
6403aeea | 2773 | REFERENCE_CONVERSION_BADNESS)); |
db577aea | 2774 | if (TYPE_CODE (parm) == TYPE_CODE_REF) |
da096638 | 2775 | return (sum_ranks (rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL), |
6403aeea | 2776 | REFERENCE_CONVERSION_BADNESS)); |
5d161b24 | 2777 | if (overload_debug) |
7ba81444 MS |
2778 | /* Debugging only. */ |
2779 | fprintf_filtered (gdb_stderr, | |
2780 | "------ Arg is %s [%d], parm is %s [%d]\n", | |
2781 | TYPE_NAME (arg), TYPE_CODE (arg), | |
2782 | TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c | 2783 | |
0963b4bd | 2784 | /* x -> y means arg of type x being supplied for parameter of type y. */ |
c906108c SS |
2785 | |
2786 | switch (TYPE_CODE (parm)) | |
2787 | { | |
c5aa993b JM |
2788 | case TYPE_CODE_PTR: |
2789 | switch (TYPE_CODE (arg)) | |
2790 | { | |
2791 | case TYPE_CODE_PTR: | |
7062b0a0 SW |
2792 | |
2793 | /* Allowed pointer conversions are: | |
2794 | (a) pointer to void-pointer conversion. */ | |
2795 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) | |
c5aa993b | 2796 | return VOID_PTR_CONVERSION_BADNESS; |
7062b0a0 SW |
2797 | |
2798 | /* (b) pointer to ancestor-pointer conversion. */ | |
a9d5ef47 SW |
2799 | rank.subrank = distance_to_ancestor (TYPE_TARGET_TYPE (parm), |
2800 | TYPE_TARGET_TYPE (arg), | |
2801 | 0); | |
2802 | if (rank.subrank >= 0) | |
2803 | return sum_ranks (BASE_PTR_CONVERSION_BADNESS, rank); | |
7062b0a0 SW |
2804 | |
2805 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 2806 | case TYPE_CODE_ARRAY: |
7062b0a0 SW |
2807 | if (types_equal (TYPE_TARGET_TYPE (parm), |
2808 | TYPE_TARGET_TYPE (arg))) | |
6403aeea | 2809 | return EXACT_MATCH_BADNESS; |
7062b0a0 | 2810 | return INCOMPATIBLE_TYPE_BADNESS; |
c5aa993b | 2811 | case TYPE_CODE_FUNC: |
da096638 | 2812 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL); |
c5aa993b | 2813 | case TYPE_CODE_INT: |
a451cb65 | 2814 | if (value != NULL && TYPE_CODE (value_type (value)) == TYPE_CODE_INT) |
da096638 | 2815 | { |
a451cb65 KS |
2816 | if (value_as_long (value) == 0) |
2817 | { | |
2818 | /* Null pointer conversion: allow it to be cast to a pointer. | |
2819 | [4.10.1 of C++ standard draft n3290] */ | |
2820 | return NULL_POINTER_CONVERSION_BADNESS; | |
2821 | } | |
2822 | else | |
2823 | { | |
2824 | /* If type checking is disabled, allow the conversion. */ | |
2825 | if (!strict_type_checking) | |
2826 | return NS_INTEGER_POINTER_CONVERSION_BADNESS; | |
2827 | } | |
da096638 KS |
2828 | } |
2829 | /* fall through */ | |
c5aa993b | 2830 | case TYPE_CODE_ENUM: |
4f2aea11 | 2831 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
2832 | case TYPE_CODE_CHAR: |
2833 | case TYPE_CODE_RANGE: | |
2834 | case TYPE_CODE_BOOL: | |
c5aa993b JM |
2835 | default: |
2836 | return INCOMPATIBLE_TYPE_BADNESS; | |
2837 | } | |
2838 | case TYPE_CODE_ARRAY: | |
2839 | switch (TYPE_CODE (arg)) | |
2840 | { | |
2841 | case TYPE_CODE_PTR: | |
2842 | case TYPE_CODE_ARRAY: | |
7ba81444 | 2843 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
da096638 | 2844 | TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
2845 | default: |
2846 | return INCOMPATIBLE_TYPE_BADNESS; | |
2847 | } | |
2848 | case TYPE_CODE_FUNC: | |
2849 | switch (TYPE_CODE (arg)) | |
2850 | { | |
2851 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
da096638 | 2852 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
2853 | default: |
2854 | return INCOMPATIBLE_TYPE_BADNESS; | |
2855 | } | |
2856 | case TYPE_CODE_INT: | |
2857 | switch (TYPE_CODE (arg)) | |
2858 | { | |
2859 | case TYPE_CODE_INT: | |
2860 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2861 | { | |
2862 | /* Deal with signed, unsigned, and plain chars and | |
7ba81444 | 2863 | signed and unsigned ints. */ |
c5aa993b JM |
2864 | if (TYPE_NOSIGN (parm)) |
2865 | { | |
0963b4bd | 2866 | /* This case only for character types. */ |
7ba81444 | 2867 | if (TYPE_NOSIGN (arg)) |
6403aeea | 2868 | return EXACT_MATCH_BADNESS; /* plain char -> plain char */ |
7ba81444 MS |
2869 | else /* signed/unsigned char -> plain char */ |
2870 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
2871 | } |
2872 | else if (TYPE_UNSIGNED (parm)) | |
2873 | { | |
2874 | if (TYPE_UNSIGNED (arg)) | |
2875 | { | |
7ba81444 MS |
2876 | /* unsigned int -> unsigned int, or |
2877 | unsigned long -> unsigned long */ | |
2878 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
2879 | TYPE_NAME (arg))) | |
6403aeea | 2880 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
2881 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
2882 | "int") | |
2883 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2884 | "long")) | |
3e43a32a MS |
2885 | /* unsigned int -> unsigned long */ |
2886 | return INTEGER_PROMOTION_BADNESS; | |
c5aa993b | 2887 | else |
3e43a32a MS |
2888 | /* unsigned long -> unsigned int */ |
2889 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
2890 | } |
2891 | else | |
2892 | { | |
7ba81444 MS |
2893 | if (integer_types_same_name_p (TYPE_NAME (arg), |
2894 | "long") | |
2895 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2896 | "int")) | |
3e43a32a MS |
2897 | /* signed long -> unsigned int */ |
2898 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b | 2899 | else |
3e43a32a MS |
2900 | /* signed int/long -> unsigned int/long */ |
2901 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
2902 | } |
2903 | } | |
2904 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2905 | { | |
7ba81444 MS |
2906 | if (integer_types_same_name_p (TYPE_NAME (parm), |
2907 | TYPE_NAME (arg))) | |
6403aeea | 2908 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
2909 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
2910 | "int") | |
2911 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2912 | "long")) | |
c5aa993b JM |
2913 | return INTEGER_PROMOTION_BADNESS; |
2914 | else | |
1c5cb38e | 2915 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2916 | } |
2917 | else | |
1c5cb38e | 2918 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2919 | } |
2920 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2921 | return INTEGER_PROMOTION_BADNESS; | |
2922 | else | |
1c5cb38e | 2923 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b | 2924 | case TYPE_CODE_ENUM: |
4f2aea11 | 2925 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
2926 | case TYPE_CODE_CHAR: |
2927 | case TYPE_CODE_RANGE: | |
2928 | case TYPE_CODE_BOOL: | |
2929 | return INTEGER_PROMOTION_BADNESS; | |
2930 | case TYPE_CODE_FLT: | |
2931 | return INT_FLOAT_CONVERSION_BADNESS; | |
2932 | case TYPE_CODE_PTR: | |
2933 | return NS_POINTER_CONVERSION_BADNESS; | |
2934 | default: | |
2935 | return INCOMPATIBLE_TYPE_BADNESS; | |
2936 | } | |
2937 | break; | |
2938 | case TYPE_CODE_ENUM: | |
2939 | switch (TYPE_CODE (arg)) | |
2940 | { | |
2941 | case TYPE_CODE_INT: | |
2942 | case TYPE_CODE_CHAR: | |
2943 | case TYPE_CODE_RANGE: | |
2944 | case TYPE_CODE_BOOL: | |
2945 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2946 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2947 | case TYPE_CODE_FLT: |
2948 | return INT_FLOAT_CONVERSION_BADNESS; | |
2949 | default: | |
2950 | return INCOMPATIBLE_TYPE_BADNESS; | |
2951 | } | |
2952 | break; | |
2953 | case TYPE_CODE_CHAR: | |
2954 | switch (TYPE_CODE (arg)) | |
2955 | { | |
2956 | case TYPE_CODE_RANGE: | |
2957 | case TYPE_CODE_BOOL: | |
2958 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2959 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2960 | case TYPE_CODE_FLT: |
2961 | return INT_FLOAT_CONVERSION_BADNESS; | |
2962 | case TYPE_CODE_INT: | |
2963 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
1c5cb38e | 2964 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2965 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) |
2966 | return INTEGER_PROMOTION_BADNESS; | |
2967 | /* >>> !! else fall through !! <<< */ | |
2968 | case TYPE_CODE_CHAR: | |
7ba81444 MS |
2969 | /* Deal with signed, unsigned, and plain chars for C++ and |
2970 | with int cases falling through from previous case. */ | |
c5aa993b JM |
2971 | if (TYPE_NOSIGN (parm)) |
2972 | { | |
2973 | if (TYPE_NOSIGN (arg)) | |
6403aeea | 2974 | return EXACT_MATCH_BADNESS; |
c5aa993b | 2975 | else |
1c5cb38e | 2976 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2977 | } |
2978 | else if (TYPE_UNSIGNED (parm)) | |
2979 | { | |
2980 | if (TYPE_UNSIGNED (arg)) | |
6403aeea | 2981 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
2982 | else |
2983 | return INTEGER_PROMOTION_BADNESS; | |
2984 | } | |
2985 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
6403aeea | 2986 | return EXACT_MATCH_BADNESS; |
c5aa993b | 2987 | else |
1c5cb38e | 2988 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2989 | default: |
2990 | return INCOMPATIBLE_TYPE_BADNESS; | |
2991 | } | |
2992 | break; | |
2993 | case TYPE_CODE_RANGE: | |
2994 | switch (TYPE_CODE (arg)) | |
2995 | { | |
2996 | case TYPE_CODE_INT: | |
2997 | case TYPE_CODE_CHAR: | |
2998 | case TYPE_CODE_RANGE: | |
2999 | case TYPE_CODE_BOOL: | |
3000 | case TYPE_CODE_ENUM: | |
1c5cb38e | 3001 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
3002 | case TYPE_CODE_FLT: |
3003 | return INT_FLOAT_CONVERSION_BADNESS; | |
3004 | default: | |
3005 | return INCOMPATIBLE_TYPE_BADNESS; | |
3006 | } | |
3007 | break; | |
3008 | case TYPE_CODE_BOOL: | |
3009 | switch (TYPE_CODE (arg)) | |
3010 | { | |
5b4f6e25 KS |
3011 | /* n3290 draft, section 4.12.1 (conv.bool): |
3012 | ||
3013 | "A prvalue of arithmetic, unscoped enumeration, pointer, or | |
3014 | pointer to member type can be converted to a prvalue of type | |
3015 | bool. A zero value, null pointer value, or null member pointer | |
3016 | value is converted to false; any other value is converted to | |
3017 | true. A prvalue of type std::nullptr_t can be converted to a | |
3018 | prvalue of type bool; the resulting value is false." */ | |
c5aa993b JM |
3019 | case TYPE_CODE_INT: |
3020 | case TYPE_CODE_CHAR: | |
c5aa993b JM |
3021 | case TYPE_CODE_ENUM: |
3022 | case TYPE_CODE_FLT: | |
5b4f6e25 | 3023 | case TYPE_CODE_MEMBERPTR: |
c5aa993b | 3024 | case TYPE_CODE_PTR: |
5b4f6e25 KS |
3025 | return BOOL_CONVERSION_BADNESS; |
3026 | case TYPE_CODE_RANGE: | |
3027 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 3028 | case TYPE_CODE_BOOL: |
6403aeea | 3029 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3030 | default: |
3031 | return INCOMPATIBLE_TYPE_BADNESS; | |
3032 | } | |
3033 | break; | |
3034 | case TYPE_CODE_FLT: | |
3035 | switch (TYPE_CODE (arg)) | |
3036 | { | |
3037 | case TYPE_CODE_FLT: | |
3038 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
3039 | return FLOAT_PROMOTION_BADNESS; | |
3040 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
6403aeea | 3041 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3042 | else |
3043 | return FLOAT_CONVERSION_BADNESS; | |
3044 | case TYPE_CODE_INT: | |
3045 | case TYPE_CODE_BOOL: | |
3046 | case TYPE_CODE_ENUM: | |
3047 | case TYPE_CODE_RANGE: | |
3048 | case TYPE_CODE_CHAR: | |
3049 | return INT_FLOAT_CONVERSION_BADNESS; | |
3050 | default: | |
3051 | return INCOMPATIBLE_TYPE_BADNESS; | |
3052 | } | |
3053 | break; | |
3054 | case TYPE_CODE_COMPLEX: | |
3055 | switch (TYPE_CODE (arg)) | |
7ba81444 | 3056 | { /* Strictly not needed for C++, but... */ |
c5aa993b JM |
3057 | case TYPE_CODE_FLT: |
3058 | return FLOAT_PROMOTION_BADNESS; | |
3059 | case TYPE_CODE_COMPLEX: | |
6403aeea | 3060 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
3061 | default: |
3062 | return INCOMPATIBLE_TYPE_BADNESS; | |
3063 | } | |
3064 | break; | |
3065 | case TYPE_CODE_STRUCT: | |
0963b4bd | 3066 | /* currently same as TYPE_CODE_CLASS. */ |
c5aa993b JM |
3067 | switch (TYPE_CODE (arg)) |
3068 | { | |
3069 | case TYPE_CODE_STRUCT: | |
3070 | /* Check for derivation */ | |
a9d5ef47 SW |
3071 | rank.subrank = distance_to_ancestor (parm, arg, 0); |
3072 | if (rank.subrank >= 0) | |
3073 | return sum_ranks (BASE_CONVERSION_BADNESS, rank); | |
c5aa993b JM |
3074 | /* else fall through */ |
3075 | default: | |
3076 | return INCOMPATIBLE_TYPE_BADNESS; | |
3077 | } | |
3078 | break; | |
3079 | case TYPE_CODE_UNION: | |
3080 | switch (TYPE_CODE (arg)) | |
3081 | { | |
3082 | case TYPE_CODE_UNION: | |
3083 | default: | |
3084 | return INCOMPATIBLE_TYPE_BADNESS; | |
3085 | } | |
3086 | break; | |
0d5de010 | 3087 | case TYPE_CODE_MEMBERPTR: |
c5aa993b JM |
3088 | switch (TYPE_CODE (arg)) |
3089 | { | |
3090 | default: | |
3091 | return INCOMPATIBLE_TYPE_BADNESS; | |
3092 | } | |
3093 | break; | |
3094 | case TYPE_CODE_METHOD: | |
3095 | switch (TYPE_CODE (arg)) | |
3096 | { | |
3097 | ||
3098 | default: | |
3099 | return INCOMPATIBLE_TYPE_BADNESS; | |
3100 | } | |
3101 | break; | |
3102 | case TYPE_CODE_REF: | |
3103 | switch (TYPE_CODE (arg)) | |
3104 | { | |
3105 | ||
3106 | default: | |
3107 | return INCOMPATIBLE_TYPE_BADNESS; | |
3108 | } | |
3109 | ||
3110 | break; | |
3111 | case TYPE_CODE_SET: | |
3112 | switch (TYPE_CODE (arg)) | |
3113 | { | |
3114 | /* Not in C++ */ | |
3115 | case TYPE_CODE_SET: | |
7ba81444 | 3116 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), |
da096638 | 3117 | TYPE_FIELD_TYPE (arg, 0), NULL); |
c5aa993b JM |
3118 | default: |
3119 | return INCOMPATIBLE_TYPE_BADNESS; | |
3120 | } | |
3121 | break; | |
3122 | case TYPE_CODE_VOID: | |
3123 | default: | |
3124 | return INCOMPATIBLE_TYPE_BADNESS; | |
3125 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
3126 | } |
3127 | ||
0963b4bd | 3128 | /* End of functions for overload resolution. */ |
5212577a DE |
3129 | \f |
3130 | /* Routines to pretty-print types. */ | |
c906108c | 3131 | |
c906108c | 3132 | static void |
fba45db2 | 3133 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
3134 | { |
3135 | int bitno; | |
3136 | ||
3137 | for (bitno = 0; bitno < nbits; bitno++) | |
3138 | { | |
3139 | if ((bitno % 8) == 0) | |
3140 | { | |
3141 | puts_filtered (" "); | |
3142 | } | |
3143 | if (B_TST (bits, bitno)) | |
a3f17187 | 3144 | printf_filtered (("1")); |
c906108c | 3145 | else |
a3f17187 | 3146 | printf_filtered (("0")); |
c906108c SS |
3147 | } |
3148 | } | |
3149 | ||
ad2f7632 | 3150 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
3151 | include it since we may get into a infinitely recursive |
3152 | situation. */ | |
c906108c SS |
3153 | |
3154 | static void | |
ad2f7632 | 3155 | print_arg_types (struct field *args, int nargs, int spaces) |
c906108c SS |
3156 | { |
3157 | if (args != NULL) | |
3158 | { | |
ad2f7632 DJ |
3159 | int i; |
3160 | ||
3161 | for (i = 0; i < nargs; i++) | |
3162 | recursive_dump_type (args[i].type, spaces + 2); | |
c906108c SS |
3163 | } |
3164 | } | |
3165 | ||
d6a843b5 JK |
3166 | int |
3167 | field_is_static (struct field *f) | |
3168 | { | |
3169 | /* "static" fields are the fields whose location is not relative | |
3170 | to the address of the enclosing struct. It would be nice to | |
3171 | have a dedicated flag that would be set for static fields when | |
3172 | the type is being created. But in practice, checking the field | |
254e6b9e | 3173 | loc_kind should give us an accurate answer. */ |
d6a843b5 JK |
3174 | return (FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSNAME |
3175 | || FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSADDR); | |
3176 | } | |
3177 | ||
c906108c | 3178 | static void |
fba45db2 | 3179 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
3180 | { |
3181 | int method_idx; | |
3182 | int overload_idx; | |
3183 | struct fn_field *f; | |
3184 | ||
3185 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 3186 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
3187 | printf_filtered ("\n"); |
3188 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
3189 | { | |
3190 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
3191 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
3192 | method_idx, | |
3193 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
3194 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
3195 | gdb_stdout); | |
a3f17187 | 3196 | printf_filtered (_(") length %d\n"), |
c906108c SS |
3197 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
3198 | for (overload_idx = 0; | |
3199 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
3200 | overload_idx++) | |
3201 | { | |
3202 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
3203 | overload_idx, | |
3204 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
3205 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
3206 | gdb_stdout); | |
c906108c SS |
3207 | printf_filtered (")\n"); |
3208 | printfi_filtered (spaces + 8, "type "); | |
7ba81444 MS |
3209 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
3210 | gdb_stdout); | |
c906108c SS |
3211 | printf_filtered ("\n"); |
3212 | ||
3213 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
3214 | spaces + 8 + 2); | |
3215 | ||
3216 | printfi_filtered (spaces + 8, "args "); | |
7ba81444 MS |
3217 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
3218 | gdb_stdout); | |
c906108c SS |
3219 | printf_filtered ("\n"); |
3220 | ||
ad2f7632 | 3221 | print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), |
7ba81444 MS |
3222 | TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, |
3223 | overload_idx)), | |
ad2f7632 | 3224 | spaces); |
c906108c | 3225 | printfi_filtered (spaces + 8, "fcontext "); |
d4f3574e SS |
3226 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
3227 | gdb_stdout); | |
c906108c SS |
3228 | printf_filtered ("\n"); |
3229 | ||
3230 | printfi_filtered (spaces + 8, "is_const %d\n", | |
3231 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
3232 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
3233 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
3234 | printfi_filtered (spaces + 8, "is_private %d\n", | |
3235 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
3236 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
3237 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
3238 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
3239 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
3240 | printfi_filtered (spaces + 8, "voffset %u\n", | |
3241 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
3242 | } | |
3243 | } | |
3244 | } | |
3245 | ||
3246 | static void | |
fba45db2 | 3247 | print_cplus_stuff (struct type *type, int spaces) |
c906108c SS |
3248 | { |
3249 | printfi_filtered (spaces, "n_baseclasses %d\n", | |
3250 | TYPE_N_BASECLASSES (type)); | |
3251 | printfi_filtered (spaces, "nfn_fields %d\n", | |
3252 | TYPE_NFN_FIELDS (type)); | |
c906108c SS |
3253 | if (TYPE_N_BASECLASSES (type) > 0) |
3254 | { | |
3255 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
3256 | TYPE_N_BASECLASSES (type)); | |
7ba81444 MS |
3257 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
3258 | gdb_stdout); | |
c906108c SS |
3259 | printf_filtered (")"); |
3260 | ||
3261 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
3262 | TYPE_N_BASECLASSES (type)); | |
3263 | puts_filtered ("\n"); | |
3264 | } | |
3265 | if (TYPE_NFIELDS (type) > 0) | |
3266 | { | |
3267 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
3268 | { | |
7ba81444 MS |
3269 | printfi_filtered (spaces, |
3270 | "private_field_bits (%d bits at *", | |
c906108c | 3271 | TYPE_NFIELDS (type)); |
7ba81444 MS |
3272 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
3273 | gdb_stdout); | |
c906108c SS |
3274 | printf_filtered (")"); |
3275 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
3276 | TYPE_NFIELDS (type)); | |
3277 | puts_filtered ("\n"); | |
3278 | } | |
3279 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
3280 | { | |
7ba81444 MS |
3281 | printfi_filtered (spaces, |
3282 | "protected_field_bits (%d bits at *", | |
c906108c | 3283 | TYPE_NFIELDS (type)); |
7ba81444 MS |
3284 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
3285 | gdb_stdout); | |
c906108c SS |
3286 | printf_filtered (")"); |
3287 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
3288 | TYPE_NFIELDS (type)); | |
3289 | puts_filtered ("\n"); | |
3290 | } | |
3291 | } | |
3292 | if (TYPE_NFN_FIELDS (type) > 0) | |
3293 | { | |
3294 | dump_fn_fieldlists (type, spaces); | |
3295 | } | |
3296 | } | |
3297 | ||
b4ba55a1 JB |
3298 | /* Print the contents of the TYPE's type_specific union, assuming that |
3299 | its type-specific kind is TYPE_SPECIFIC_GNAT_STUFF. */ | |
3300 | ||
3301 | static void | |
3302 | print_gnat_stuff (struct type *type, int spaces) | |
3303 | { | |
3304 | struct type *descriptive_type = TYPE_DESCRIPTIVE_TYPE (type); | |
3305 | ||
3306 | recursive_dump_type (descriptive_type, spaces + 2); | |
3307 | } | |
3308 | ||
c906108c SS |
3309 | static struct obstack dont_print_type_obstack; |
3310 | ||
3311 | void | |
fba45db2 | 3312 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
3313 | { |
3314 | int idx; | |
3315 | ||
3316 | if (spaces == 0) | |
3317 | obstack_begin (&dont_print_type_obstack, 0); | |
3318 | ||
3319 | if (TYPE_NFIELDS (type) > 0 | |
b4ba55a1 | 3320 | || (HAVE_CPLUS_STRUCT (type) && TYPE_NFN_FIELDS (type) > 0)) |
c906108c SS |
3321 | { |
3322 | struct type **first_dont_print | |
7ba81444 | 3323 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 3324 | |
7ba81444 MS |
3325 | int i = (struct type **) |
3326 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
3327 | |
3328 | while (--i >= 0) | |
3329 | { | |
3330 | if (type == first_dont_print[i]) | |
3331 | { | |
3332 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 3333 | gdb_print_host_address (type, gdb_stdout); |
a3f17187 | 3334 | printf_filtered (_(" <same as already seen type>\n")); |
c906108c SS |
3335 | return; |
3336 | } | |
3337 | } | |
3338 | ||
3339 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
3340 | } | |
3341 | ||
3342 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 3343 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
3344 | printf_filtered ("\n"); |
3345 | printfi_filtered (spaces, "name '%s' (", | |
3346 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 3347 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c | 3348 | printf_filtered (")\n"); |
e9e79dd9 FF |
3349 | printfi_filtered (spaces, "tagname '%s' (", |
3350 | TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>"); | |
3351 | gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); | |
3352 | printf_filtered (")\n"); | |
c906108c SS |
3353 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
3354 | switch (TYPE_CODE (type)) | |
3355 | { | |
c5aa993b JM |
3356 | case TYPE_CODE_UNDEF: |
3357 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
3358 | break; | |
3359 | case TYPE_CODE_PTR: | |
3360 | printf_filtered ("(TYPE_CODE_PTR)"); | |
3361 | break; | |
3362 | case TYPE_CODE_ARRAY: | |
3363 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
3364 | break; | |
3365 | case TYPE_CODE_STRUCT: | |
3366 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
3367 | break; | |
3368 | case TYPE_CODE_UNION: | |
3369 | printf_filtered ("(TYPE_CODE_UNION)"); | |
3370 | break; | |
3371 | case TYPE_CODE_ENUM: | |
3372 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
3373 | break; | |
4f2aea11 MK |
3374 | case TYPE_CODE_FLAGS: |
3375 | printf_filtered ("(TYPE_CODE_FLAGS)"); | |
3376 | break; | |
c5aa993b JM |
3377 | case TYPE_CODE_FUNC: |
3378 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
3379 | break; | |
3380 | case TYPE_CODE_INT: | |
3381 | printf_filtered ("(TYPE_CODE_INT)"); | |
3382 | break; | |
3383 | case TYPE_CODE_FLT: | |
3384 | printf_filtered ("(TYPE_CODE_FLT)"); | |
3385 | break; | |
3386 | case TYPE_CODE_VOID: | |
3387 | printf_filtered ("(TYPE_CODE_VOID)"); | |
3388 | break; | |
3389 | case TYPE_CODE_SET: | |
3390 | printf_filtered ("(TYPE_CODE_SET)"); | |
3391 | break; | |
3392 | case TYPE_CODE_RANGE: | |
3393 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
3394 | break; | |
3395 | case TYPE_CODE_STRING: | |
3396 | printf_filtered ("(TYPE_CODE_STRING)"); | |
3397 | break; | |
3398 | case TYPE_CODE_ERROR: | |
3399 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
3400 | break; | |
0d5de010 DJ |
3401 | case TYPE_CODE_MEMBERPTR: |
3402 | printf_filtered ("(TYPE_CODE_MEMBERPTR)"); | |
3403 | break; | |
3404 | case TYPE_CODE_METHODPTR: | |
3405 | printf_filtered ("(TYPE_CODE_METHODPTR)"); | |
c5aa993b JM |
3406 | break; |
3407 | case TYPE_CODE_METHOD: | |
3408 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
3409 | break; | |
3410 | case TYPE_CODE_REF: | |
3411 | printf_filtered ("(TYPE_CODE_REF)"); | |
3412 | break; | |
3413 | case TYPE_CODE_CHAR: | |
3414 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
3415 | break; | |
3416 | case TYPE_CODE_BOOL: | |
3417 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
3418 | break; | |
e9e79dd9 FF |
3419 | case TYPE_CODE_COMPLEX: |
3420 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
3421 | break; | |
c5aa993b JM |
3422 | case TYPE_CODE_TYPEDEF: |
3423 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
3424 | break; | |
5c4e30ca DC |
3425 | case TYPE_CODE_NAMESPACE: |
3426 | printf_filtered ("(TYPE_CODE_NAMESPACE)"); | |
3427 | break; | |
c5aa993b JM |
3428 | default: |
3429 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
3430 | break; | |
c906108c SS |
3431 | } |
3432 | puts_filtered ("\n"); | |
3433 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
e9bb382b UW |
3434 | if (TYPE_OBJFILE_OWNED (type)) |
3435 | { | |
3436 | printfi_filtered (spaces, "objfile "); | |
3437 | gdb_print_host_address (TYPE_OWNER (type).objfile, gdb_stdout); | |
3438 | } | |
3439 | else | |
3440 | { | |
3441 | printfi_filtered (spaces, "gdbarch "); | |
3442 | gdb_print_host_address (TYPE_OWNER (type).gdbarch, gdb_stdout); | |
3443 | } | |
c906108c SS |
3444 | printf_filtered ("\n"); |
3445 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 3446 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
3447 | printf_filtered ("\n"); |
3448 | if (TYPE_TARGET_TYPE (type) != NULL) | |
3449 | { | |
3450 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
3451 | } | |
3452 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 3453 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
3454 | printf_filtered ("\n"); |
3455 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 3456 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 3457 | printf_filtered ("\n"); |
2fdde8f8 DJ |
3458 | printfi_filtered (spaces, "type_chain "); |
3459 | gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); | |
e9e79dd9 | 3460 | printf_filtered ("\n"); |
7ba81444 MS |
3461 | printfi_filtered (spaces, "instance_flags 0x%x", |
3462 | TYPE_INSTANCE_FLAGS (type)); | |
2fdde8f8 DJ |
3463 | if (TYPE_CONST (type)) |
3464 | { | |
3465 | puts_filtered (" TYPE_FLAG_CONST"); | |
3466 | } | |
3467 | if (TYPE_VOLATILE (type)) | |
3468 | { | |
3469 | puts_filtered (" TYPE_FLAG_VOLATILE"); | |
3470 | } | |
3471 | if (TYPE_CODE_SPACE (type)) | |
3472 | { | |
3473 | puts_filtered (" TYPE_FLAG_CODE_SPACE"); | |
3474 | } | |
3475 | if (TYPE_DATA_SPACE (type)) | |
3476 | { | |
3477 | puts_filtered (" TYPE_FLAG_DATA_SPACE"); | |
3478 | } | |
8b2dbe47 KB |
3479 | if (TYPE_ADDRESS_CLASS_1 (type)) |
3480 | { | |
3481 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_1"); | |
3482 | } | |
3483 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
3484 | { | |
3485 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_2"); | |
3486 | } | |
06d66ee9 TT |
3487 | if (TYPE_RESTRICT (type)) |
3488 | { | |
3489 | puts_filtered (" TYPE_FLAG_RESTRICT"); | |
3490 | } | |
2fdde8f8 | 3491 | puts_filtered ("\n"); |
876cecd0 TT |
3492 | |
3493 | printfi_filtered (spaces, "flags"); | |
762a036f | 3494 | if (TYPE_UNSIGNED (type)) |
c906108c SS |
3495 | { |
3496 | puts_filtered (" TYPE_FLAG_UNSIGNED"); | |
3497 | } | |
762a036f FF |
3498 | if (TYPE_NOSIGN (type)) |
3499 | { | |
3500 | puts_filtered (" TYPE_FLAG_NOSIGN"); | |
3501 | } | |
3502 | if (TYPE_STUB (type)) | |
c906108c SS |
3503 | { |
3504 | puts_filtered (" TYPE_FLAG_STUB"); | |
3505 | } | |
762a036f FF |
3506 | if (TYPE_TARGET_STUB (type)) |
3507 | { | |
3508 | puts_filtered (" TYPE_FLAG_TARGET_STUB"); | |
3509 | } | |
3510 | if (TYPE_STATIC (type)) | |
3511 | { | |
3512 | puts_filtered (" TYPE_FLAG_STATIC"); | |
3513 | } | |
762a036f FF |
3514 | if (TYPE_PROTOTYPED (type)) |
3515 | { | |
3516 | puts_filtered (" TYPE_FLAG_PROTOTYPED"); | |
3517 | } | |
3518 | if (TYPE_INCOMPLETE (type)) | |
3519 | { | |
3520 | puts_filtered (" TYPE_FLAG_INCOMPLETE"); | |
3521 | } | |
762a036f FF |
3522 | if (TYPE_VARARGS (type)) |
3523 | { | |
3524 | puts_filtered (" TYPE_FLAG_VARARGS"); | |
3525 | } | |
f5f8a009 EZ |
3526 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
3527 | an attribute for the array type, which tells whether or not we | |
3528 | have a vector, instead of a regular array. */ | |
3529 | if (TYPE_VECTOR (type)) | |
3530 | { | |
3531 | puts_filtered (" TYPE_FLAG_VECTOR"); | |
3532 | } | |
876cecd0 TT |
3533 | if (TYPE_FIXED_INSTANCE (type)) |
3534 | { | |
3535 | puts_filtered (" TYPE_FIXED_INSTANCE"); | |
3536 | } | |
3537 | if (TYPE_STUB_SUPPORTED (type)) | |
3538 | { | |
3539 | puts_filtered (" TYPE_STUB_SUPPORTED"); | |
3540 | } | |
3541 | if (TYPE_NOTTEXT (type)) | |
3542 | { | |
3543 | puts_filtered (" TYPE_NOTTEXT"); | |
3544 | } | |
c906108c SS |
3545 | puts_filtered ("\n"); |
3546 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 3547 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
3548 | puts_filtered ("\n"); |
3549 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
3550 | { | |
14e75d8e JK |
3551 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) |
3552 | printfi_filtered (spaces + 2, | |
3553 | "[%d] enumval %s type ", | |
3554 | idx, plongest (TYPE_FIELD_ENUMVAL (type, idx))); | |
3555 | else | |
3556 | printfi_filtered (spaces + 2, | |
3557 | "[%d] bitpos %d bitsize %d type ", | |
3558 | idx, TYPE_FIELD_BITPOS (type, idx), | |
3559 | TYPE_FIELD_BITSIZE (type, idx)); | |
d4f3574e | 3560 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
3561 | printf_filtered (" name '%s' (", |
3562 | TYPE_FIELD_NAME (type, idx) != NULL | |
3563 | ? TYPE_FIELD_NAME (type, idx) | |
3564 | : "<NULL>"); | |
d4f3574e | 3565 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
3566 | printf_filtered (")\n"); |
3567 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
3568 | { | |
3569 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
3570 | } | |
3571 | } | |
43bbcdc2 PH |
3572 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
3573 | { | |
3574 | printfi_filtered (spaces, "low %s%s high %s%s\n", | |
3575 | plongest (TYPE_LOW_BOUND (type)), | |
3576 | TYPE_LOW_BOUND_UNDEFINED (type) ? " (undefined)" : "", | |
3577 | plongest (TYPE_HIGH_BOUND (type)), | |
3e43a32a MS |
3578 | TYPE_HIGH_BOUND_UNDEFINED (type) |
3579 | ? " (undefined)" : ""); | |
43bbcdc2 | 3580 | } |
c906108c | 3581 | printfi_filtered (spaces, "vptr_basetype "); |
d4f3574e | 3582 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); |
c906108c SS |
3583 | puts_filtered ("\n"); |
3584 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
3585 | { | |
3586 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
3587 | } | |
7ba81444 MS |
3588 | printfi_filtered (spaces, "vptr_fieldno %d\n", |
3589 | TYPE_VPTR_FIELDNO (type)); | |
c906108c | 3590 | |
b4ba55a1 JB |
3591 | switch (TYPE_SPECIFIC_FIELD (type)) |
3592 | { | |
3593 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
3594 | printfi_filtered (spaces, "cplus_stuff "); | |
3595 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), | |
3596 | gdb_stdout); | |
3597 | puts_filtered ("\n"); | |
3598 | print_cplus_stuff (type, spaces); | |
3599 | break; | |
8da61cc4 | 3600 | |
b4ba55a1 JB |
3601 | case TYPE_SPECIFIC_GNAT_STUFF: |
3602 | printfi_filtered (spaces, "gnat_stuff "); | |
3603 | gdb_print_host_address (TYPE_GNAT_SPECIFIC (type), gdb_stdout); | |
3604 | puts_filtered ("\n"); | |
3605 | print_gnat_stuff (type, spaces); | |
3606 | break; | |
701c159d | 3607 | |
b4ba55a1 JB |
3608 | case TYPE_SPECIFIC_FLOATFORMAT: |
3609 | printfi_filtered (spaces, "floatformat "); | |
3610 | if (TYPE_FLOATFORMAT (type) == NULL) | |
3611 | puts_filtered ("(null)"); | |
3612 | else | |
3613 | { | |
3614 | puts_filtered ("{ "); | |
3615 | if (TYPE_FLOATFORMAT (type)[0] == NULL | |
3616 | || TYPE_FLOATFORMAT (type)[0]->name == NULL) | |
3617 | puts_filtered ("(null)"); | |
3618 | else | |
3619 | puts_filtered (TYPE_FLOATFORMAT (type)[0]->name); | |
3620 | ||
3621 | puts_filtered (", "); | |
3622 | if (TYPE_FLOATFORMAT (type)[1] == NULL | |
3623 | || TYPE_FLOATFORMAT (type)[1]->name == NULL) | |
3624 | puts_filtered ("(null)"); | |
3625 | else | |
3626 | puts_filtered (TYPE_FLOATFORMAT (type)[1]->name); | |
3627 | ||
3628 | puts_filtered (" }"); | |
3629 | } | |
3630 | puts_filtered ("\n"); | |
3631 | break; | |
c906108c | 3632 | |
b6cdc2c1 | 3633 | case TYPE_SPECIFIC_FUNC: |
b4ba55a1 JB |
3634 | printfi_filtered (spaces, "calling_convention %d\n", |
3635 | TYPE_CALLING_CONVENTION (type)); | |
b6cdc2c1 | 3636 | /* tail_call_list is not printed. */ |
b4ba55a1 | 3637 | break; |
c906108c | 3638 | } |
b4ba55a1 | 3639 | |
c906108c SS |
3640 | if (spaces == 0) |
3641 | obstack_free (&dont_print_type_obstack, NULL); | |
3642 | } | |
5212577a | 3643 | \f |
ae5a43e0 DJ |
3644 | /* Trivial helpers for the libiberty hash table, for mapping one |
3645 | type to another. */ | |
3646 | ||
3647 | struct type_pair | |
3648 | { | |
3649 | struct type *old, *new; | |
3650 | }; | |
3651 | ||
3652 | static hashval_t | |
3653 | type_pair_hash (const void *item) | |
3654 | { | |
3655 | const struct type_pair *pair = item; | |
d8734c88 | 3656 | |
ae5a43e0 DJ |
3657 | return htab_hash_pointer (pair->old); |
3658 | } | |
3659 | ||
3660 | static int | |
3661 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
3662 | { | |
3663 | const struct type_pair *lhs = item_lhs, *rhs = item_rhs; | |
d8734c88 | 3664 | |
ae5a43e0 DJ |
3665 | return lhs->old == rhs->old; |
3666 | } | |
3667 | ||
3668 | /* Allocate the hash table used by copy_type_recursive to walk | |
3669 | types without duplicates. We use OBJFILE's obstack, because | |
3670 | OBJFILE is about to be deleted. */ | |
3671 | ||
3672 | htab_t | |
3673 | create_copied_types_hash (struct objfile *objfile) | |
3674 | { | |
3675 | return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, | |
3676 | NULL, &objfile->objfile_obstack, | |
3677 | hashtab_obstack_allocate, | |
3678 | dummy_obstack_deallocate); | |
3679 | } | |
3680 | ||
7ba81444 MS |
3681 | /* Recursively copy (deep copy) TYPE, if it is associated with |
3682 | OBJFILE. Return a new type allocated using malloc, a saved type if | |
3683 | we have already visited TYPE (using COPIED_TYPES), or TYPE if it is | |
3684 | not associated with OBJFILE. */ | |
ae5a43e0 DJ |
3685 | |
3686 | struct type * | |
7ba81444 MS |
3687 | copy_type_recursive (struct objfile *objfile, |
3688 | struct type *type, | |
ae5a43e0 DJ |
3689 | htab_t copied_types) |
3690 | { | |
3691 | struct type_pair *stored, pair; | |
3692 | void **slot; | |
3693 | struct type *new_type; | |
3694 | ||
e9bb382b | 3695 | if (! TYPE_OBJFILE_OWNED (type)) |
ae5a43e0 DJ |
3696 | return type; |
3697 | ||
7ba81444 MS |
3698 | /* This type shouldn't be pointing to any types in other objfiles; |
3699 | if it did, the type might disappear unexpectedly. */ | |
ae5a43e0 DJ |
3700 | gdb_assert (TYPE_OBJFILE (type) == objfile); |
3701 | ||
3702 | pair.old = type; | |
3703 | slot = htab_find_slot (copied_types, &pair, INSERT); | |
3704 | if (*slot != NULL) | |
3705 | return ((struct type_pair *) *slot)->new; | |
3706 | ||
e9bb382b | 3707 | new_type = alloc_type_arch (get_type_arch (type)); |
ae5a43e0 DJ |
3708 | |
3709 | /* We must add the new type to the hash table immediately, in case | |
3710 | we encounter this type again during a recursive call below. */ | |
3e43a32a MS |
3711 | stored |
3712 | = obstack_alloc (&objfile->objfile_obstack, sizeof (struct type_pair)); | |
ae5a43e0 DJ |
3713 | stored->old = type; |
3714 | stored->new = new_type; | |
3715 | *slot = stored; | |
3716 | ||
876cecd0 TT |
3717 | /* Copy the common fields of types. For the main type, we simply |
3718 | copy the entire thing and then update specific fields as needed. */ | |
3719 | *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type); | |
e9bb382b UW |
3720 | TYPE_OBJFILE_OWNED (new_type) = 0; |
3721 | TYPE_OWNER (new_type).gdbarch = get_type_arch (type); | |
876cecd0 | 3722 | |
ae5a43e0 DJ |
3723 | if (TYPE_NAME (type)) |
3724 | TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type)); | |
3725 | if (TYPE_TAG_NAME (type)) | |
3726 | TYPE_TAG_NAME (new_type) = xstrdup (TYPE_TAG_NAME (type)); | |
ae5a43e0 DJ |
3727 | |
3728 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); | |
3729 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
3730 | ||
3731 | /* Copy the fields. */ | |
ae5a43e0 DJ |
3732 | if (TYPE_NFIELDS (type)) |
3733 | { | |
3734 | int i, nfields; | |
3735 | ||
3736 | nfields = TYPE_NFIELDS (type); | |
fc270c35 | 3737 | TYPE_FIELDS (new_type) = XCNEWVEC (struct field, nfields); |
ae5a43e0 DJ |
3738 | for (i = 0; i < nfields; i++) |
3739 | { | |
7ba81444 MS |
3740 | TYPE_FIELD_ARTIFICIAL (new_type, i) = |
3741 | TYPE_FIELD_ARTIFICIAL (type, i); | |
ae5a43e0 DJ |
3742 | TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
3743 | if (TYPE_FIELD_TYPE (type, i)) | |
3744 | TYPE_FIELD_TYPE (new_type, i) | |
3745 | = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i), | |
3746 | copied_types); | |
3747 | if (TYPE_FIELD_NAME (type, i)) | |
7ba81444 MS |
3748 | TYPE_FIELD_NAME (new_type, i) = |
3749 | xstrdup (TYPE_FIELD_NAME (type, i)); | |
d6a843b5 | 3750 | switch (TYPE_FIELD_LOC_KIND (type, i)) |
ae5a43e0 | 3751 | { |
d6a843b5 JK |
3752 | case FIELD_LOC_KIND_BITPOS: |
3753 | SET_FIELD_BITPOS (TYPE_FIELD (new_type, i), | |
3754 | TYPE_FIELD_BITPOS (type, i)); | |
3755 | break; | |
14e75d8e JK |
3756 | case FIELD_LOC_KIND_ENUMVAL: |
3757 | SET_FIELD_ENUMVAL (TYPE_FIELD (new_type, i), | |
3758 | TYPE_FIELD_ENUMVAL (type, i)); | |
3759 | break; | |
d6a843b5 JK |
3760 | case FIELD_LOC_KIND_PHYSADDR: |
3761 | SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i), | |
3762 | TYPE_FIELD_STATIC_PHYSADDR (type, i)); | |
3763 | break; | |
3764 | case FIELD_LOC_KIND_PHYSNAME: | |
3765 | SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i), | |
3766 | xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, | |
3767 | i))); | |
3768 | break; | |
3769 | default: | |
3770 | internal_error (__FILE__, __LINE__, | |
3771 | _("Unexpected type field location kind: %d"), | |
3772 | TYPE_FIELD_LOC_KIND (type, i)); | |
ae5a43e0 DJ |
3773 | } |
3774 | } | |
3775 | } | |
3776 | ||
0963b4bd | 3777 | /* For range types, copy the bounds information. */ |
43bbcdc2 PH |
3778 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
3779 | { | |
3780 | TYPE_RANGE_DATA (new_type) = xmalloc (sizeof (struct range_bounds)); | |
3781 | *TYPE_RANGE_DATA (new_type) = *TYPE_RANGE_DATA (type); | |
3782 | } | |
3783 | ||
ae5a43e0 DJ |
3784 | /* Copy pointers to other types. */ |
3785 | if (TYPE_TARGET_TYPE (type)) | |
7ba81444 MS |
3786 | TYPE_TARGET_TYPE (new_type) = |
3787 | copy_type_recursive (objfile, | |
3788 | TYPE_TARGET_TYPE (type), | |
3789 | copied_types); | |
ae5a43e0 | 3790 | if (TYPE_VPTR_BASETYPE (type)) |
7ba81444 MS |
3791 | TYPE_VPTR_BASETYPE (new_type) = |
3792 | copy_type_recursive (objfile, | |
3793 | TYPE_VPTR_BASETYPE (type), | |
3794 | copied_types); | |
ae5a43e0 DJ |
3795 | /* Maybe copy the type_specific bits. |
3796 | ||
3797 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
3798 | base classes and methods. There's no fundamental reason why we | |
3799 | can't, but at the moment it is not needed. */ | |
3800 | ||
3801 | if (TYPE_CODE (type) == TYPE_CODE_FLT) | |
d5d6fca5 | 3802 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); |
ae5a43e0 DJ |
3803 | else if (TYPE_CODE (type) == TYPE_CODE_STRUCT |
3804 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
ae5a43e0 DJ |
3805 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) |
3806 | INIT_CPLUS_SPECIFIC (new_type); | |
3807 | ||
3808 | return new_type; | |
3809 | } | |
3810 | ||
4af88198 JB |
3811 | /* Make a copy of the given TYPE, except that the pointer & reference |
3812 | types are not preserved. | |
3813 | ||
3814 | This function assumes that the given type has an associated objfile. | |
3815 | This objfile is used to allocate the new type. */ | |
3816 | ||
3817 | struct type * | |
3818 | copy_type (const struct type *type) | |
3819 | { | |
3820 | struct type *new_type; | |
3821 | ||
e9bb382b | 3822 | gdb_assert (TYPE_OBJFILE_OWNED (type)); |
4af88198 | 3823 | |
e9bb382b | 3824 | new_type = alloc_type_copy (type); |
4af88198 JB |
3825 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); |
3826 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
3827 | memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type), | |
3828 | sizeof (struct main_type)); | |
3829 | ||
3830 | return new_type; | |
3831 | } | |
5212577a | 3832 | \f |
e9bb382b UW |
3833 | /* Helper functions to initialize architecture-specific types. */ |
3834 | ||
3835 | /* Allocate a type structure associated with GDBARCH and set its | |
3836 | CODE, LENGTH, and NAME fields. */ | |
5212577a | 3837 | |
e9bb382b UW |
3838 | struct type * |
3839 | arch_type (struct gdbarch *gdbarch, | |
3840 | enum type_code code, int length, char *name) | |
3841 | { | |
3842 | struct type *type; | |
3843 | ||
3844 | type = alloc_type_arch (gdbarch); | |
3845 | TYPE_CODE (type) = code; | |
3846 | TYPE_LENGTH (type) = length; | |
3847 | ||
3848 | if (name) | |
3849 | TYPE_NAME (type) = xstrdup (name); | |
3850 | ||
3851 | return type; | |
3852 | } | |
3853 | ||
3854 | /* Allocate a TYPE_CODE_INT type structure associated with GDBARCH. | |
3855 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3856 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 3857 | |
e9bb382b UW |
3858 | struct type * |
3859 | arch_integer_type (struct gdbarch *gdbarch, | |
3860 | int bit, int unsigned_p, char *name) | |
3861 | { | |
3862 | struct type *t; | |
3863 | ||
3864 | t = arch_type (gdbarch, TYPE_CODE_INT, bit / TARGET_CHAR_BIT, name); | |
3865 | if (unsigned_p) | |
3866 | TYPE_UNSIGNED (t) = 1; | |
3867 | if (name && strcmp (name, "char") == 0) | |
3868 | TYPE_NOSIGN (t) = 1; | |
3869 | ||
3870 | return t; | |
3871 | } | |
3872 | ||
3873 | /* Allocate a TYPE_CODE_CHAR type structure associated with GDBARCH. | |
3874 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3875 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 3876 | |
e9bb382b UW |
3877 | struct type * |
3878 | arch_character_type (struct gdbarch *gdbarch, | |
3879 | int bit, int unsigned_p, char *name) | |
3880 | { | |
3881 | struct type *t; | |
3882 | ||
3883 | t = arch_type (gdbarch, TYPE_CODE_CHAR, bit / TARGET_CHAR_BIT, name); | |
3884 | if (unsigned_p) | |
3885 | TYPE_UNSIGNED (t) = 1; | |
3886 | ||
3887 | return t; | |
3888 | } | |
3889 | ||
3890 | /* Allocate a TYPE_CODE_BOOL type structure associated with GDBARCH. | |
3891 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3892 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
5212577a | 3893 | |
e9bb382b UW |
3894 | struct type * |
3895 | arch_boolean_type (struct gdbarch *gdbarch, | |
3896 | int bit, int unsigned_p, char *name) | |
3897 | { | |
3898 | struct type *t; | |
3899 | ||
3900 | t = arch_type (gdbarch, TYPE_CODE_BOOL, bit / TARGET_CHAR_BIT, name); | |
3901 | if (unsigned_p) | |
3902 | TYPE_UNSIGNED (t) = 1; | |
3903 | ||
3904 | return t; | |
3905 | } | |
3906 | ||
3907 | /* Allocate a TYPE_CODE_FLT type structure associated with GDBARCH. | |
3908 | BIT is the type size in bits; if BIT equals -1, the size is | |
3909 | determined by the floatformat. NAME is the type name. Set the | |
3910 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
5212577a | 3911 | |
27067745 | 3912 | struct type * |
e9bb382b UW |
3913 | arch_float_type (struct gdbarch *gdbarch, |
3914 | int bit, char *name, const struct floatformat **floatformats) | |
8da61cc4 DJ |
3915 | { |
3916 | struct type *t; | |
3917 | ||
3918 | if (bit == -1) | |
3919 | { | |
3920 | gdb_assert (floatformats != NULL); | |
3921 | gdb_assert (floatformats[0] != NULL && floatformats[1] != NULL); | |
3922 | bit = floatformats[0]->totalsize; | |
3923 | } | |
3924 | gdb_assert (bit >= 0); | |
3925 | ||
e9bb382b | 3926 | t = arch_type (gdbarch, TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, name); |
8da61cc4 DJ |
3927 | TYPE_FLOATFORMAT (t) = floatformats; |
3928 | return t; | |
3929 | } | |
3930 | ||
e9bb382b UW |
3931 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with GDBARCH. |
3932 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
5212577a | 3933 | |
27067745 | 3934 | struct type * |
e9bb382b UW |
3935 | arch_complex_type (struct gdbarch *gdbarch, |
3936 | char *name, struct type *target_type) | |
27067745 UW |
3937 | { |
3938 | struct type *t; | |
d8734c88 | 3939 | |
e9bb382b UW |
3940 | t = arch_type (gdbarch, TYPE_CODE_COMPLEX, |
3941 | 2 * TYPE_LENGTH (target_type), name); | |
27067745 UW |
3942 | TYPE_TARGET_TYPE (t) = target_type; |
3943 | return t; | |
3944 | } | |
3945 | ||
e9bb382b | 3946 | /* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH. |
eb90ce83 | 3947 | NAME is the type name. LENGTH is the size of the flag word in bytes. */ |
5212577a | 3948 | |
e9bb382b UW |
3949 | struct type * |
3950 | arch_flags_type (struct gdbarch *gdbarch, char *name, int length) | |
3951 | { | |
3952 | int nfields = length * TARGET_CHAR_BIT; | |
3953 | struct type *type; | |
3954 | ||
3955 | type = arch_type (gdbarch, TYPE_CODE_FLAGS, length, name); | |
3956 | TYPE_UNSIGNED (type) = 1; | |
3957 | TYPE_NFIELDS (type) = nfields; | |
3958 | TYPE_FIELDS (type) = TYPE_ZALLOC (type, nfields * sizeof (struct field)); | |
3959 | ||
3960 | return type; | |
3961 | } | |
3962 | ||
3963 | /* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
3964 | position BITPOS is called NAME. */ | |
5212577a | 3965 | |
e9bb382b UW |
3966 | void |
3967 | append_flags_type_flag (struct type *type, int bitpos, char *name) | |
3968 | { | |
3969 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS); | |
3970 | gdb_assert (bitpos < TYPE_NFIELDS (type)); | |
3971 | gdb_assert (bitpos >= 0); | |
3972 | ||
3973 | if (name) | |
3974 | { | |
3975 | TYPE_FIELD_NAME (type, bitpos) = xstrdup (name); | |
945b3a32 | 3976 | SET_FIELD_BITPOS (TYPE_FIELD (type, bitpos), bitpos); |
e9bb382b UW |
3977 | } |
3978 | else | |
3979 | { | |
3980 | /* Don't show this field to the user. */ | |
945b3a32 | 3981 | SET_FIELD_BITPOS (TYPE_FIELD (type, bitpos), -1); |
e9bb382b UW |
3982 | } |
3983 | } | |
3984 | ||
3985 | /* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as | |
3986 | specified by CODE) associated with GDBARCH. NAME is the type name. */ | |
5212577a | 3987 | |
e9bb382b UW |
3988 | struct type * |
3989 | arch_composite_type (struct gdbarch *gdbarch, char *name, enum type_code code) | |
3990 | { | |
3991 | struct type *t; | |
d8734c88 | 3992 | |
e9bb382b UW |
3993 | gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION); |
3994 | t = arch_type (gdbarch, code, 0, NULL); | |
3995 | TYPE_TAG_NAME (t) = name; | |
3996 | INIT_CPLUS_SPECIFIC (t); | |
3997 | return t; | |
3998 | } | |
3999 | ||
4000 | /* Add new field with name NAME and type FIELD to composite type T. | |
f5dff777 DJ |
4001 | Do not set the field's position or adjust the type's length; |
4002 | the caller should do so. Return the new field. */ | |
5212577a | 4003 | |
f5dff777 DJ |
4004 | struct field * |
4005 | append_composite_type_field_raw (struct type *t, char *name, | |
4006 | struct type *field) | |
e9bb382b UW |
4007 | { |
4008 | struct field *f; | |
d8734c88 | 4009 | |
e9bb382b UW |
4010 | TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; |
4011 | TYPE_FIELDS (t) = xrealloc (TYPE_FIELDS (t), | |
4012 | sizeof (struct field) * TYPE_NFIELDS (t)); | |
4013 | f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); | |
4014 | memset (f, 0, sizeof f[0]); | |
4015 | FIELD_TYPE (f[0]) = field; | |
4016 | FIELD_NAME (f[0]) = name; | |
f5dff777 DJ |
4017 | return f; |
4018 | } | |
4019 | ||
4020 | /* Add new field with name NAME and type FIELD to composite type T. | |
4021 | ALIGNMENT (if non-zero) specifies the minimum field alignment. */ | |
5212577a | 4022 | |
f5dff777 DJ |
4023 | void |
4024 | append_composite_type_field_aligned (struct type *t, char *name, | |
4025 | struct type *field, int alignment) | |
4026 | { | |
4027 | struct field *f = append_composite_type_field_raw (t, name, field); | |
d8734c88 | 4028 | |
e9bb382b UW |
4029 | if (TYPE_CODE (t) == TYPE_CODE_UNION) |
4030 | { | |
4031 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) | |
4032 | TYPE_LENGTH (t) = TYPE_LENGTH (field); | |
4033 | } | |
4034 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
4035 | { | |
4036 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
4037 | if (TYPE_NFIELDS (t) > 1) | |
4038 | { | |
f41f5e61 PA |
4039 | SET_FIELD_BITPOS (f[0], |
4040 | (FIELD_BITPOS (f[-1]) | |
4041 | + (TYPE_LENGTH (FIELD_TYPE (f[-1])) | |
4042 | * TARGET_CHAR_BIT))); | |
e9bb382b UW |
4043 | |
4044 | if (alignment) | |
4045 | { | |
86c3c1fc AB |
4046 | int left; |
4047 | ||
4048 | alignment *= TARGET_CHAR_BIT; | |
4049 | left = FIELD_BITPOS (f[0]) % alignment; | |
d8734c88 | 4050 | |
e9bb382b UW |
4051 | if (left) |
4052 | { | |
f41f5e61 | 4053 | SET_FIELD_BITPOS (f[0], FIELD_BITPOS (f[0]) + (alignment - left)); |
86c3c1fc | 4054 | TYPE_LENGTH (t) += (alignment - left) / TARGET_CHAR_BIT; |
e9bb382b UW |
4055 | } |
4056 | } | |
4057 | } | |
4058 | } | |
4059 | } | |
4060 | ||
4061 | /* Add new field with name NAME and type FIELD to composite type T. */ | |
5212577a | 4062 | |
e9bb382b UW |
4063 | void |
4064 | append_composite_type_field (struct type *t, char *name, | |
4065 | struct type *field) | |
4066 | { | |
4067 | append_composite_type_field_aligned (t, name, field, 0); | |
4068 | } | |
4069 | ||
000177f0 AC |
4070 | static struct gdbarch_data *gdbtypes_data; |
4071 | ||
4072 | const struct builtin_type * | |
4073 | builtin_type (struct gdbarch *gdbarch) | |
4074 | { | |
4075 | return gdbarch_data (gdbarch, gdbtypes_data); | |
4076 | } | |
4077 | ||
4078 | static void * | |
4079 | gdbtypes_post_init (struct gdbarch *gdbarch) | |
4080 | { | |
4081 | struct builtin_type *builtin_type | |
4082 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); | |
4083 | ||
46bf5051 | 4084 | /* Basic types. */ |
e9bb382b UW |
4085 | builtin_type->builtin_void |
4086 | = arch_type (gdbarch, TYPE_CODE_VOID, 1, "void"); | |
4087 | builtin_type->builtin_char | |
4088 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
4089 | !gdbarch_char_signed (gdbarch), "char"); | |
4090 | builtin_type->builtin_signed_char | |
4091 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
4092 | 0, "signed char"); | |
4093 | builtin_type->builtin_unsigned_char | |
4094 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
4095 | 1, "unsigned char"); | |
4096 | builtin_type->builtin_short | |
4097 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
4098 | 0, "short"); | |
4099 | builtin_type->builtin_unsigned_short | |
4100 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
4101 | 1, "unsigned short"); | |
4102 | builtin_type->builtin_int | |
4103 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
4104 | 0, "int"); | |
4105 | builtin_type->builtin_unsigned_int | |
4106 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
4107 | 1, "unsigned int"); | |
4108 | builtin_type->builtin_long | |
4109 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
4110 | 0, "long"); | |
4111 | builtin_type->builtin_unsigned_long | |
4112 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
4113 | 1, "unsigned long"); | |
4114 | builtin_type->builtin_long_long | |
4115 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
4116 | 0, "long long"); | |
4117 | builtin_type->builtin_unsigned_long_long | |
4118 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
4119 | 1, "unsigned long long"); | |
70bd8e24 | 4120 | builtin_type->builtin_float |
e9bb382b | 4121 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), |
27067745 | 4122 | "float", gdbarch_float_format (gdbarch)); |
70bd8e24 | 4123 | builtin_type->builtin_double |
e9bb382b | 4124 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), |
27067745 | 4125 | "double", gdbarch_double_format (gdbarch)); |
70bd8e24 | 4126 | builtin_type->builtin_long_double |
e9bb382b | 4127 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), |
27067745 | 4128 | "long double", gdbarch_long_double_format (gdbarch)); |
70bd8e24 | 4129 | builtin_type->builtin_complex |
e9bb382b UW |
4130 | = arch_complex_type (gdbarch, "complex", |
4131 | builtin_type->builtin_float); | |
70bd8e24 | 4132 | builtin_type->builtin_double_complex |
e9bb382b UW |
4133 | = arch_complex_type (gdbarch, "double complex", |
4134 | builtin_type->builtin_double); | |
4135 | builtin_type->builtin_string | |
4136 | = arch_type (gdbarch, TYPE_CODE_STRING, 1, "string"); | |
4137 | builtin_type->builtin_bool | |
4138 | = arch_type (gdbarch, TYPE_CODE_BOOL, 1, "bool"); | |
000177f0 | 4139 | |
7678ef8f TJB |
4140 | /* The following three are about decimal floating point types, which |
4141 | are 32-bits, 64-bits and 128-bits respectively. */ | |
4142 | builtin_type->builtin_decfloat | |
e9bb382b | 4143 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 32 / 8, "_Decimal32"); |
7678ef8f | 4144 | builtin_type->builtin_decdouble |
e9bb382b | 4145 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 64 / 8, "_Decimal64"); |
7678ef8f | 4146 | builtin_type->builtin_declong |
e9bb382b | 4147 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 128 / 8, "_Decimal128"); |
7678ef8f | 4148 | |
69feb676 | 4149 | /* "True" character types. */ |
e9bb382b UW |
4150 | builtin_type->builtin_true_char |
4151 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 0, "true character"); | |
4152 | builtin_type->builtin_true_unsigned_char | |
4153 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 1, "true character"); | |
69feb676 | 4154 | |
df4df182 | 4155 | /* Fixed-size integer types. */ |
e9bb382b UW |
4156 | builtin_type->builtin_int0 |
4157 | = arch_integer_type (gdbarch, 0, 0, "int0_t"); | |
4158 | builtin_type->builtin_int8 | |
4159 | = arch_integer_type (gdbarch, 8, 0, "int8_t"); | |
4160 | builtin_type->builtin_uint8 | |
4161 | = arch_integer_type (gdbarch, 8, 1, "uint8_t"); | |
4162 | builtin_type->builtin_int16 | |
4163 | = arch_integer_type (gdbarch, 16, 0, "int16_t"); | |
4164 | builtin_type->builtin_uint16 | |
4165 | = arch_integer_type (gdbarch, 16, 1, "uint16_t"); | |
4166 | builtin_type->builtin_int32 | |
4167 | = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
4168 | builtin_type->builtin_uint32 | |
4169 | = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
4170 | builtin_type->builtin_int64 | |
4171 | = arch_integer_type (gdbarch, 64, 0, "int64_t"); | |
4172 | builtin_type->builtin_uint64 | |
4173 | = arch_integer_type (gdbarch, 64, 1, "uint64_t"); | |
4174 | builtin_type->builtin_int128 | |
4175 | = arch_integer_type (gdbarch, 128, 0, "int128_t"); | |
4176 | builtin_type->builtin_uint128 | |
4177 | = arch_integer_type (gdbarch, 128, 1, "uint128_t"); | |
2844d6b5 KW |
4178 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_int8) |= |
4179 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
4180 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_uint8) |= | |
4181 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
df4df182 | 4182 | |
9a22f0d0 PM |
4183 | /* Wide character types. */ |
4184 | builtin_type->builtin_char16 | |
4185 | = arch_integer_type (gdbarch, 16, 0, "char16_t"); | |
4186 | builtin_type->builtin_char32 | |
4187 | = arch_integer_type (gdbarch, 32, 0, "char32_t"); | |
4188 | ||
4189 | ||
46bf5051 | 4190 | /* Default data/code pointer types. */ |
e9bb382b UW |
4191 | builtin_type->builtin_data_ptr |
4192 | = lookup_pointer_type (builtin_type->builtin_void); | |
4193 | builtin_type->builtin_func_ptr | |
4194 | = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
0875794a JK |
4195 | builtin_type->builtin_func_func |
4196 | = lookup_function_type (builtin_type->builtin_func_ptr); | |
46bf5051 | 4197 | |
78267919 | 4198 | /* This type represents a GDB internal function. */ |
e9bb382b UW |
4199 | builtin_type->internal_fn |
4200 | = arch_type (gdbarch, TYPE_CODE_INTERNAL_FUNCTION, 0, | |
4201 | "<internal function>"); | |
78267919 | 4202 | |
46bf5051 UW |
4203 | return builtin_type; |
4204 | } | |
4205 | ||
46bf5051 UW |
4206 | /* This set of objfile-based types is intended to be used by symbol |
4207 | readers as basic types. */ | |
4208 | ||
4209 | static const struct objfile_data *objfile_type_data; | |
4210 | ||
4211 | const struct objfile_type * | |
4212 | objfile_type (struct objfile *objfile) | |
4213 | { | |
4214 | struct gdbarch *gdbarch; | |
4215 | struct objfile_type *objfile_type | |
4216 | = objfile_data (objfile, objfile_type_data); | |
4217 | ||
4218 | if (objfile_type) | |
4219 | return objfile_type; | |
4220 | ||
4221 | objfile_type = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
4222 | 1, struct objfile_type); | |
4223 | ||
4224 | /* Use the objfile architecture to determine basic type properties. */ | |
4225 | gdbarch = get_objfile_arch (objfile); | |
4226 | ||
4227 | /* Basic types. */ | |
4228 | objfile_type->builtin_void | |
4229 | = init_type (TYPE_CODE_VOID, 1, | |
4230 | 0, | |
4231 | "void", objfile); | |
4232 | ||
4233 | objfile_type->builtin_char | |
4234 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
4235 | (TYPE_FLAG_NOSIGN | |
4236 | | (gdbarch_char_signed (gdbarch) ? 0 : TYPE_FLAG_UNSIGNED)), | |
4237 | "char", objfile); | |
4238 | objfile_type->builtin_signed_char | |
4239 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
4240 | 0, | |
4241 | "signed char", objfile); | |
4242 | objfile_type->builtin_unsigned_char | |
4243 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
4244 | TYPE_FLAG_UNSIGNED, | |
4245 | "unsigned char", objfile); | |
4246 | objfile_type->builtin_short | |
4247 | = init_type (TYPE_CODE_INT, | |
4248 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
4249 | 0, "short", objfile); | |
4250 | objfile_type->builtin_unsigned_short | |
4251 | = init_type (TYPE_CODE_INT, | |
4252 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
4253 | TYPE_FLAG_UNSIGNED, "unsigned short", objfile); | |
4254 | objfile_type->builtin_int | |
4255 | = init_type (TYPE_CODE_INT, | |
4256 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
4257 | 0, "int", objfile); | |
4258 | objfile_type->builtin_unsigned_int | |
4259 | = init_type (TYPE_CODE_INT, | |
4260 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
4261 | TYPE_FLAG_UNSIGNED, "unsigned int", objfile); | |
4262 | objfile_type->builtin_long | |
4263 | = init_type (TYPE_CODE_INT, | |
4264 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
4265 | 0, "long", objfile); | |
4266 | objfile_type->builtin_unsigned_long | |
4267 | = init_type (TYPE_CODE_INT, | |
4268 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
4269 | TYPE_FLAG_UNSIGNED, "unsigned long", objfile); | |
4270 | objfile_type->builtin_long_long | |
4271 | = init_type (TYPE_CODE_INT, | |
4272 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
4273 | 0, "long long", objfile); | |
4274 | objfile_type->builtin_unsigned_long_long | |
4275 | = init_type (TYPE_CODE_INT, | |
4276 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
4277 | TYPE_FLAG_UNSIGNED, "unsigned long long", objfile); | |
4278 | ||
4279 | objfile_type->builtin_float | |
4280 | = init_type (TYPE_CODE_FLT, | |
4281 | gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, | |
4282 | 0, "float", objfile); | |
4283 | TYPE_FLOATFORMAT (objfile_type->builtin_float) | |
4284 | = gdbarch_float_format (gdbarch); | |
4285 | objfile_type->builtin_double | |
4286 | = init_type (TYPE_CODE_FLT, | |
4287 | gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
4288 | 0, "double", objfile); | |
4289 | TYPE_FLOATFORMAT (objfile_type->builtin_double) | |
4290 | = gdbarch_double_format (gdbarch); | |
4291 | objfile_type->builtin_long_double | |
4292 | = init_type (TYPE_CODE_FLT, | |
4293 | gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
4294 | 0, "long double", objfile); | |
4295 | TYPE_FLOATFORMAT (objfile_type->builtin_long_double) | |
4296 | = gdbarch_long_double_format (gdbarch); | |
4297 | ||
4298 | /* This type represents a type that was unrecognized in symbol read-in. */ | |
4299 | objfile_type->builtin_error | |
4300 | = init_type (TYPE_CODE_ERROR, 0, 0, "<unknown type>", objfile); | |
4301 | ||
4302 | /* The following set of types is used for symbols with no | |
4303 | debug information. */ | |
4304 | objfile_type->nodebug_text_symbol | |
4305 | = init_type (TYPE_CODE_FUNC, 1, 0, | |
4306 | "<text variable, no debug info>", objfile); | |
4307 | TYPE_TARGET_TYPE (objfile_type->nodebug_text_symbol) | |
4308 | = objfile_type->builtin_int; | |
0875794a JK |
4309 | objfile_type->nodebug_text_gnu_ifunc_symbol |
4310 | = init_type (TYPE_CODE_FUNC, 1, TYPE_FLAG_GNU_IFUNC, | |
4311 | "<text gnu-indirect-function variable, no debug info>", | |
4312 | objfile); | |
4313 | TYPE_TARGET_TYPE (objfile_type->nodebug_text_gnu_ifunc_symbol) | |
4314 | = objfile_type->nodebug_text_symbol; | |
4315 | objfile_type->nodebug_got_plt_symbol | |
4316 | = init_type (TYPE_CODE_PTR, gdbarch_addr_bit (gdbarch) / 8, 0, | |
4317 | "<text from jump slot in .got.plt, no debug info>", | |
4318 | objfile); | |
4319 | TYPE_TARGET_TYPE (objfile_type->nodebug_got_plt_symbol) | |
4320 | = objfile_type->nodebug_text_symbol; | |
46bf5051 UW |
4321 | objfile_type->nodebug_data_symbol |
4322 | = init_type (TYPE_CODE_INT, | |
4323 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
4324 | "<data variable, no debug info>", objfile); | |
4325 | objfile_type->nodebug_unknown_symbol | |
4326 | = init_type (TYPE_CODE_INT, 1, 0, | |
4327 | "<variable (not text or data), no debug info>", objfile); | |
4328 | objfile_type->nodebug_tls_symbol | |
4329 | = init_type (TYPE_CODE_INT, | |
4330 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
4331 | "<thread local variable, no debug info>", objfile); | |
000177f0 AC |
4332 | |
4333 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
0a7cfe2c | 4334 | the same. |
000177f0 AC |
4335 | |
4336 | The upshot is: | |
4337 | - gdb's `struct type' always describes the target's | |
4338 | representation. | |
4339 | - gdb's `struct value' objects should always hold values in | |
4340 | target form. | |
4341 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
4342 | address space that the assembler and linker work with. Thus, | |
4343 | since target_read_memory takes a CORE_ADDR as an argument, it | |
4344 | can access any memory on the target, even if the processor has | |
4345 | separate code and data address spaces. | |
4346 | ||
46bf5051 UW |
4347 | In this context, objfile_type->builtin_core_addr is a bit odd: |
4348 | it's a target type for a value the target will never see. It's | |
4349 | only used to hold the values of (typeless) linker symbols, which | |
4350 | are indeed in the unified virtual address space. */ | |
000177f0 | 4351 | |
46bf5051 UW |
4352 | objfile_type->builtin_core_addr |
4353 | = init_type (TYPE_CODE_INT, | |
4354 | gdbarch_addr_bit (gdbarch) / 8, | |
4355 | TYPE_FLAG_UNSIGNED, "__CORE_ADDR", objfile); | |
64c50499 | 4356 | |
46bf5051 UW |
4357 | set_objfile_data (objfile, objfile_type_data, objfile_type); |
4358 | return objfile_type; | |
000177f0 AC |
4359 | } |
4360 | ||
5212577a | 4361 | extern initialize_file_ftype _initialize_gdbtypes; |
46bf5051 | 4362 | |
c906108c | 4363 | void |
fba45db2 | 4364 | _initialize_gdbtypes (void) |
c906108c | 4365 | { |
5674de60 | 4366 | gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
46bf5051 | 4367 | objfile_type_data = register_objfile_data (); |
5674de60 | 4368 | |
ccce17b0 YQ |
4369 | add_setshow_zuinteger_cmd ("overload", no_class, &overload_debug, |
4370 | _("Set debugging of C++ overloading."), | |
4371 | _("Show debugging of C++ overloading."), | |
4372 | _("When enabled, ranking of the " | |
4373 | "functions is displayed."), | |
4374 | NULL, | |
4375 | show_overload_debug, | |
4376 | &setdebuglist, &showdebuglist); | |
5674de60 | 4377 | |
7ba81444 | 4378 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 | 4379 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3e43a32a MS |
4380 | &opaque_type_resolution, |
4381 | _("Set resolution of opaque struct/class/union" | |
4382 | " types (if set before loading symbols)."), | |
4383 | _("Show resolution of opaque struct/class/union" | |
4384 | " types (if set before loading symbols)."), | |
4385 | NULL, NULL, | |
5674de60 UW |
4386 | show_opaque_type_resolution, |
4387 | &setlist, &showlist); | |
a451cb65 KS |
4388 | |
4389 | /* Add an option to permit non-strict type checking. */ | |
4390 | add_setshow_boolean_cmd ("type", class_support, | |
4391 | &strict_type_checking, | |
4392 | _("Set strict type checking."), | |
4393 | _("Show strict type checking."), | |
4394 | NULL, NULL, | |
4395 | show_strict_type_checking, | |
4396 | &setchecklist, &showchecklist); | |
c906108c | 4397 | } |