Commit | Line | Data |
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c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
4f2aea11 | 2 | |
9b254dd1 | 3 | Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, |
0fb0cc75 | 4 | 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. |
4f2aea11 | 5 | |
c906108c SS |
6 | Contributed by Cygnus Support, using pieces from other GDB modules. |
7 | ||
c5aa993b | 8 | This file is part of GDB. |
c906108c | 9 | |
c5aa993b JM |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 12 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 13 | (at your option) any later version. |
c906108c | 14 | |
c5aa993b JM |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
c906108c | 19 | |
c5aa993b | 20 | You should have received a copy of the GNU General Public License |
a9762ec7 | 21 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
22 | |
23 | #include "defs.h" | |
24 | #include "gdb_string.h" | |
25 | #include "bfd.h" | |
26 | #include "symtab.h" | |
27 | #include "symfile.h" | |
28 | #include "objfiles.h" | |
29 | #include "gdbtypes.h" | |
30 | #include "expression.h" | |
31 | #include "language.h" | |
32 | #include "target.h" | |
33 | #include "value.h" | |
34 | #include "demangle.h" | |
35 | #include "complaints.h" | |
36 | #include "gdbcmd.h" | |
c91ecb25 | 37 | #include "wrapper.h" |
015a42b4 | 38 | #include "cp-abi.h" |
a02fd225 | 39 | #include "gdb_assert.h" |
ae5a43e0 | 40 | #include "hashtab.h" |
c906108c | 41 | |
ac3aafc7 | 42 | |
8da61cc4 DJ |
43 | /* Floatformat pairs. */ |
44 | const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { | |
45 | &floatformat_ieee_single_big, | |
46 | &floatformat_ieee_single_little | |
47 | }; | |
48 | const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { | |
49 | &floatformat_ieee_double_big, | |
50 | &floatformat_ieee_double_little | |
51 | }; | |
52 | const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { | |
53 | &floatformat_ieee_double_big, | |
54 | &floatformat_ieee_double_littlebyte_bigword | |
55 | }; | |
56 | const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { | |
57 | &floatformat_i387_ext, | |
58 | &floatformat_i387_ext | |
59 | }; | |
60 | const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { | |
61 | &floatformat_m68881_ext, | |
62 | &floatformat_m68881_ext | |
63 | }; | |
64 | const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { | |
65 | &floatformat_arm_ext_big, | |
66 | &floatformat_arm_ext_littlebyte_bigword | |
67 | }; | |
68 | const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { | |
69 | &floatformat_ia64_spill_big, | |
70 | &floatformat_ia64_spill_little | |
71 | }; | |
72 | const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = { | |
73 | &floatformat_ia64_quad_big, | |
74 | &floatformat_ia64_quad_little | |
75 | }; | |
76 | const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { | |
77 | &floatformat_vax_f, | |
78 | &floatformat_vax_f | |
79 | }; | |
80 | const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { | |
81 | &floatformat_vax_d, | |
82 | &floatformat_vax_d | |
83 | }; | |
b14d30e1 JM |
84 | const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { |
85 | &floatformat_ibm_long_double, | |
86 | &floatformat_ibm_long_double | |
87 | }; | |
8da61cc4 | 88 | |
8da61cc4 | 89 | |
c906108c | 90 | int opaque_type_resolution = 1; |
920d2a44 AC |
91 | static void |
92 | show_opaque_type_resolution (struct ui_file *file, int from_tty, | |
7ba81444 MS |
93 | struct cmd_list_element *c, |
94 | const char *value) | |
920d2a44 AC |
95 | { |
96 | fprintf_filtered (file, _("\ | |
97 | Resolution of opaque struct/class/union types (if set before loading symbols) is %s.\n"), | |
98 | value); | |
99 | } | |
100 | ||
5d161b24 | 101 | int overload_debug = 0; |
920d2a44 AC |
102 | static void |
103 | show_overload_debug (struct ui_file *file, int from_tty, | |
104 | struct cmd_list_element *c, const char *value) | |
105 | { | |
7ba81444 MS |
106 | fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"), |
107 | value); | |
920d2a44 | 108 | } |
c906108c | 109 | |
c5aa993b JM |
110 | struct extra |
111 | { | |
112 | char str[128]; | |
113 | int len; | |
7ba81444 | 114 | }; /* Maximum extension is 128! FIXME */ |
c906108c | 115 | |
a14ed312 | 116 | static void print_bit_vector (B_TYPE *, int); |
ad2f7632 | 117 | static void print_arg_types (struct field *, int, int); |
a14ed312 KB |
118 | static void dump_fn_fieldlists (struct type *, int); |
119 | static void print_cplus_stuff (struct type *, int); | |
7a292a7a | 120 | |
c906108c | 121 | |
e9bb382b UW |
122 | /* Allocate a new OBJFILE-associated type structure and fill it |
123 | with some defaults. Space for the type structure is allocated | |
124 | on the objfile's objfile_obstack. */ | |
c906108c SS |
125 | |
126 | struct type * | |
fba45db2 | 127 | alloc_type (struct objfile *objfile) |
c906108c | 128 | { |
52f0bd74 | 129 | struct type *type; |
c906108c | 130 | |
e9bb382b UW |
131 | gdb_assert (objfile != NULL); |
132 | ||
7ba81444 | 133 | /* Alloc the structure and start off with all fields zeroed. */ |
e9bb382b UW |
134 | type = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct type); |
135 | TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (&objfile->objfile_obstack, | |
136 | struct main_type); | |
137 | OBJSTAT (objfile, n_types++); | |
c906108c | 138 | |
e9bb382b UW |
139 | TYPE_OBJFILE_OWNED (type) = 1; |
140 | TYPE_OWNER (type).objfile = objfile; | |
c906108c | 141 | |
7ba81444 | 142 | /* Initialize the fields that might not be zero. */ |
c906108c SS |
143 | |
144 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
c906108c | 145 | TYPE_VPTR_FIELDNO (type) = -1; |
2fdde8f8 | 146 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
c906108c | 147 | |
c16abbde | 148 | return type; |
c906108c SS |
149 | } |
150 | ||
e9bb382b UW |
151 | /* Allocate a new GDBARCH-associated type structure and fill it |
152 | with some defaults. Space for the type structure is allocated | |
153 | on the heap. */ | |
154 | ||
155 | struct type * | |
156 | alloc_type_arch (struct gdbarch *gdbarch) | |
157 | { | |
158 | struct type *type; | |
159 | ||
160 | gdb_assert (gdbarch != NULL); | |
161 | ||
162 | /* Alloc the structure and start off with all fields zeroed. */ | |
163 | ||
164 | type = XZALLOC (struct type); | |
165 | TYPE_MAIN_TYPE (type) = XZALLOC (struct main_type); | |
166 | ||
167 | TYPE_OBJFILE_OWNED (type) = 0; | |
168 | TYPE_OWNER (type).gdbarch = gdbarch; | |
169 | ||
170 | /* Initialize the fields that might not be zero. */ | |
171 | ||
172 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
173 | TYPE_VPTR_FIELDNO (type) = -1; | |
174 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ | |
175 | ||
176 | return type; | |
177 | } | |
178 | ||
179 | /* If TYPE is objfile-associated, allocate a new type structure | |
180 | associated with the same objfile. If TYPE is gdbarch-associated, | |
181 | allocate a new type structure associated with the same gdbarch. */ | |
182 | ||
183 | struct type * | |
184 | alloc_type_copy (const struct type *type) | |
185 | { | |
186 | if (TYPE_OBJFILE_OWNED (type)) | |
187 | return alloc_type (TYPE_OWNER (type).objfile); | |
188 | else | |
189 | return alloc_type_arch (TYPE_OWNER (type).gdbarch); | |
190 | } | |
191 | ||
192 | /* If TYPE is gdbarch-associated, return that architecture. | |
193 | If TYPE is objfile-associated, return that objfile's architecture. */ | |
194 | ||
195 | struct gdbarch * | |
196 | get_type_arch (const struct type *type) | |
197 | { | |
198 | if (TYPE_OBJFILE_OWNED (type)) | |
199 | return get_objfile_arch (TYPE_OWNER (type).objfile); | |
200 | else | |
201 | return TYPE_OWNER (type).gdbarch; | |
202 | } | |
203 | ||
204 | ||
2fdde8f8 DJ |
205 | /* Alloc a new type instance structure, fill it with some defaults, |
206 | and point it at OLDTYPE. Allocate the new type instance from the | |
207 | same place as OLDTYPE. */ | |
208 | ||
209 | static struct type * | |
210 | alloc_type_instance (struct type *oldtype) | |
211 | { | |
212 | struct type *type; | |
213 | ||
214 | /* Allocate the structure. */ | |
215 | ||
e9bb382b | 216 | if (! TYPE_OBJFILE_OWNED (oldtype)) |
1deafd4e | 217 | type = XZALLOC (struct type); |
2fdde8f8 | 218 | else |
1deafd4e PA |
219 | type = OBSTACK_ZALLOC (&TYPE_OBJFILE (oldtype)->objfile_obstack, |
220 | struct type); | |
221 | ||
2fdde8f8 DJ |
222 | TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype); |
223 | ||
224 | TYPE_CHAIN (type) = type; /* Chain back to itself for now. */ | |
225 | ||
c16abbde | 226 | return type; |
2fdde8f8 DJ |
227 | } |
228 | ||
229 | /* Clear all remnants of the previous type at TYPE, in preparation for | |
e9bb382b | 230 | replacing it with something else. Preserve owner information. */ |
2fdde8f8 DJ |
231 | static void |
232 | smash_type (struct type *type) | |
233 | { | |
e9bb382b UW |
234 | int objfile_owned = TYPE_OBJFILE_OWNED (type); |
235 | union type_owner owner = TYPE_OWNER (type); | |
236 | ||
2fdde8f8 DJ |
237 | memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
238 | ||
e9bb382b UW |
239 | /* Restore owner information. */ |
240 | TYPE_OBJFILE_OWNED (type) = objfile_owned; | |
241 | TYPE_OWNER (type) = owner; | |
242 | ||
2fdde8f8 DJ |
243 | /* For now, delete the rings. */ |
244 | TYPE_CHAIN (type) = type; | |
245 | ||
246 | /* For now, leave the pointer/reference types alone. */ | |
247 | } | |
248 | ||
c906108c SS |
249 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
250 | to a pointer to memory where the pointer type should be stored. | |
251 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
252 | We allocate new memory if needed. */ | |
253 | ||
254 | struct type * | |
fba45db2 | 255 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 256 | { |
52f0bd74 | 257 | struct type *ntype; /* New type */ |
053cb41b | 258 | struct type *chain; |
c906108c SS |
259 | |
260 | ntype = TYPE_POINTER_TYPE (type); | |
261 | ||
c5aa993b | 262 | if (ntype) |
c906108c | 263 | { |
c5aa993b | 264 | if (typeptr == 0) |
7ba81444 MS |
265 | return ntype; /* Don't care about alloc, |
266 | and have new type. */ | |
c906108c | 267 | else if (*typeptr == 0) |
c5aa993b | 268 | { |
7ba81444 | 269 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 270 | return ntype; |
c5aa993b | 271 | } |
c906108c SS |
272 | } |
273 | ||
274 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
275 | { | |
e9bb382b | 276 | ntype = alloc_type_copy (type); |
c906108c SS |
277 | if (typeptr) |
278 | *typeptr = ntype; | |
279 | } | |
7ba81444 | 280 | else /* We have storage, but need to reset it. */ |
c906108c SS |
281 | { |
282 | ntype = *typeptr; | |
053cb41b | 283 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 284 | smash_type (ntype); |
053cb41b | 285 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
286 | } |
287 | ||
288 | TYPE_TARGET_TYPE (ntype) = type; | |
289 | TYPE_POINTER_TYPE (type) = ntype; | |
290 | ||
7ba81444 MS |
291 | /* FIXME! Assume the machine has only one representation for |
292 | pointers! */ | |
c906108c | 293 | |
50810684 UW |
294 | TYPE_LENGTH (ntype) |
295 | = gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c SS |
296 | TYPE_CODE (ntype) = TYPE_CODE_PTR; |
297 | ||
67b2adb2 | 298 | /* Mark pointers as unsigned. The target converts between pointers |
76e71323 | 299 | and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and |
7ba81444 | 300 | gdbarch_address_to_pointer. */ |
876cecd0 | 301 | TYPE_UNSIGNED (ntype) = 1; |
c5aa993b | 302 | |
c906108c SS |
303 | if (!TYPE_POINTER_TYPE (type)) /* Remember it, if don't have one. */ |
304 | TYPE_POINTER_TYPE (type) = ntype; | |
305 | ||
053cb41b JB |
306 | /* Update the length of all the other variants of this type. */ |
307 | chain = TYPE_CHAIN (ntype); | |
308 | while (chain != ntype) | |
309 | { | |
310 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
311 | chain = TYPE_CHAIN (chain); | |
312 | } | |
313 | ||
c906108c SS |
314 | return ntype; |
315 | } | |
316 | ||
317 | /* Given a type TYPE, return a type of pointers to that type. | |
318 | May need to construct such a type if this is the first use. */ | |
319 | ||
320 | struct type * | |
fba45db2 | 321 | lookup_pointer_type (struct type *type) |
c906108c | 322 | { |
c5aa993b | 323 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
324 | } |
325 | ||
7ba81444 MS |
326 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, |
327 | points to a pointer to memory where the reference type should be | |
328 | stored. If *TYPEPTR is zero, update it to point to the reference | |
329 | type we return. We allocate new memory if needed. */ | |
c906108c SS |
330 | |
331 | struct type * | |
fba45db2 | 332 | make_reference_type (struct type *type, struct type **typeptr) |
c906108c | 333 | { |
52f0bd74 | 334 | struct type *ntype; /* New type */ |
1e98b326 | 335 | struct type *chain; |
c906108c SS |
336 | |
337 | ntype = TYPE_REFERENCE_TYPE (type); | |
338 | ||
c5aa993b | 339 | if (ntype) |
c906108c | 340 | { |
c5aa993b | 341 | if (typeptr == 0) |
7ba81444 MS |
342 | return ntype; /* Don't care about alloc, |
343 | and have new type. */ | |
c906108c | 344 | else if (*typeptr == 0) |
c5aa993b | 345 | { |
7ba81444 | 346 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 347 | return ntype; |
c5aa993b | 348 | } |
c906108c SS |
349 | } |
350 | ||
351 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
352 | { | |
e9bb382b | 353 | ntype = alloc_type_copy (type); |
c906108c SS |
354 | if (typeptr) |
355 | *typeptr = ntype; | |
356 | } | |
7ba81444 | 357 | else /* We have storage, but need to reset it. */ |
c906108c SS |
358 | { |
359 | ntype = *typeptr; | |
1e98b326 | 360 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 361 | smash_type (ntype); |
1e98b326 | 362 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
363 | } |
364 | ||
365 | TYPE_TARGET_TYPE (ntype) = type; | |
366 | TYPE_REFERENCE_TYPE (type) = ntype; | |
367 | ||
7ba81444 MS |
368 | /* FIXME! Assume the machine has only one representation for |
369 | references, and that it matches the (only) representation for | |
370 | pointers! */ | |
c906108c | 371 | |
50810684 UW |
372 | TYPE_LENGTH (ntype) = |
373 | gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c | 374 | TYPE_CODE (ntype) = TYPE_CODE_REF; |
c5aa993b | 375 | |
c906108c SS |
376 | if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */ |
377 | TYPE_REFERENCE_TYPE (type) = ntype; | |
378 | ||
1e98b326 JB |
379 | /* Update the length of all the other variants of this type. */ |
380 | chain = TYPE_CHAIN (ntype); | |
381 | while (chain != ntype) | |
382 | { | |
383 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
384 | chain = TYPE_CHAIN (chain); | |
385 | } | |
386 | ||
c906108c SS |
387 | return ntype; |
388 | } | |
389 | ||
7ba81444 MS |
390 | /* Same as above, but caller doesn't care about memory allocation |
391 | details. */ | |
c906108c SS |
392 | |
393 | struct type * | |
fba45db2 | 394 | lookup_reference_type (struct type *type) |
c906108c | 395 | { |
c5aa993b | 396 | return make_reference_type (type, (struct type **) 0); |
c906108c SS |
397 | } |
398 | ||
7ba81444 MS |
399 | /* Lookup a function type that returns type TYPE. TYPEPTR, if |
400 | nonzero, points to a pointer to memory where the function type | |
401 | should be stored. If *TYPEPTR is zero, update it to point to the | |
0c8b41f1 | 402 | function type we return. We allocate new memory if needed. */ |
c906108c SS |
403 | |
404 | struct type * | |
0c8b41f1 | 405 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 406 | { |
52f0bd74 | 407 | struct type *ntype; /* New type */ |
c906108c SS |
408 | |
409 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
410 | { | |
e9bb382b | 411 | ntype = alloc_type_copy (type); |
c906108c SS |
412 | if (typeptr) |
413 | *typeptr = ntype; | |
414 | } | |
7ba81444 | 415 | else /* We have storage, but need to reset it. */ |
c906108c SS |
416 | { |
417 | ntype = *typeptr; | |
2fdde8f8 | 418 | smash_type (ntype); |
c906108c SS |
419 | } |
420 | ||
421 | TYPE_TARGET_TYPE (ntype) = type; | |
422 | ||
423 | TYPE_LENGTH (ntype) = 1; | |
424 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
c5aa993b | 425 | |
c906108c SS |
426 | return ntype; |
427 | } | |
428 | ||
429 | ||
430 | /* Given a type TYPE, return a type of functions that return that type. | |
431 | May need to construct such a type if this is the first use. */ | |
432 | ||
433 | struct type * | |
fba45db2 | 434 | lookup_function_type (struct type *type) |
c906108c | 435 | { |
0c8b41f1 | 436 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
437 | } |
438 | ||
47663de5 MS |
439 | /* Identify address space identifier by name -- |
440 | return the integer flag defined in gdbtypes.h. */ | |
441 | extern int | |
50810684 | 442 | address_space_name_to_int (struct gdbarch *gdbarch, char *space_identifier) |
47663de5 | 443 | { |
8b2dbe47 | 444 | int type_flags; |
7ba81444 | 445 | /* Check for known address space delimiters. */ |
47663de5 | 446 | if (!strcmp (space_identifier, "code")) |
876cecd0 | 447 | return TYPE_INSTANCE_FLAG_CODE_SPACE; |
47663de5 | 448 | else if (!strcmp (space_identifier, "data")) |
876cecd0 | 449 | return TYPE_INSTANCE_FLAG_DATA_SPACE; |
5f11f355 AC |
450 | else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
451 | && gdbarch_address_class_name_to_type_flags (gdbarch, | |
452 | space_identifier, | |
453 | &type_flags)) | |
8b2dbe47 | 454 | return type_flags; |
47663de5 | 455 | else |
8a3fe4f8 | 456 | error (_("Unknown address space specifier: \"%s\""), space_identifier); |
47663de5 MS |
457 | } |
458 | ||
459 | /* Identify address space identifier by integer flag as defined in | |
7ba81444 | 460 | gdbtypes.h -- return the string version of the adress space name. */ |
47663de5 | 461 | |
321432c0 | 462 | const char * |
50810684 | 463 | address_space_int_to_name (struct gdbarch *gdbarch, int space_flag) |
47663de5 | 464 | { |
876cecd0 | 465 | if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE) |
47663de5 | 466 | return "code"; |
876cecd0 | 467 | else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE) |
47663de5 | 468 | return "data"; |
876cecd0 | 469 | else if ((space_flag & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) |
5f11f355 AC |
470 | && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
471 | return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); | |
47663de5 MS |
472 | else |
473 | return NULL; | |
474 | } | |
475 | ||
2fdde8f8 | 476 | /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
ad766c0a JB |
477 | |
478 | If STORAGE is non-NULL, create the new type instance there. | |
479 | STORAGE must be in the same obstack as TYPE. */ | |
47663de5 | 480 | |
b9362cc7 | 481 | static struct type * |
2fdde8f8 DJ |
482 | make_qualified_type (struct type *type, int new_flags, |
483 | struct type *storage) | |
47663de5 MS |
484 | { |
485 | struct type *ntype; | |
486 | ||
487 | ntype = type; | |
5f61c20e JK |
488 | do |
489 | { | |
490 | if (TYPE_INSTANCE_FLAGS (ntype) == new_flags) | |
491 | return ntype; | |
492 | ntype = TYPE_CHAIN (ntype); | |
493 | } | |
494 | while (ntype != type); | |
47663de5 | 495 | |
2fdde8f8 DJ |
496 | /* Create a new type instance. */ |
497 | if (storage == NULL) | |
498 | ntype = alloc_type_instance (type); | |
499 | else | |
500 | { | |
7ba81444 MS |
501 | /* If STORAGE was provided, it had better be in the same objfile |
502 | as TYPE. Otherwise, we can't link it into TYPE's cv chain: | |
503 | if one objfile is freed and the other kept, we'd have | |
504 | dangling pointers. */ | |
ad766c0a JB |
505 | gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage)); |
506 | ||
2fdde8f8 DJ |
507 | ntype = storage; |
508 | TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); | |
509 | TYPE_CHAIN (ntype) = ntype; | |
510 | } | |
47663de5 MS |
511 | |
512 | /* Pointers or references to the original type are not relevant to | |
2fdde8f8 | 513 | the new type. */ |
47663de5 MS |
514 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
515 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
47663de5 | 516 | |
2fdde8f8 DJ |
517 | /* Chain the new qualified type to the old type. */ |
518 | TYPE_CHAIN (ntype) = TYPE_CHAIN (type); | |
519 | TYPE_CHAIN (type) = ntype; | |
520 | ||
521 | /* Now set the instance flags and return the new type. */ | |
522 | TYPE_INSTANCE_FLAGS (ntype) = new_flags; | |
47663de5 | 523 | |
ab5d3da6 KB |
524 | /* Set length of new type to that of the original type. */ |
525 | TYPE_LENGTH (ntype) = TYPE_LENGTH (type); | |
526 | ||
47663de5 MS |
527 | return ntype; |
528 | } | |
529 | ||
2fdde8f8 DJ |
530 | /* Make an address-space-delimited variant of a type -- a type that |
531 | is identical to the one supplied except that it has an address | |
532 | space attribute attached to it (such as "code" or "data"). | |
533 | ||
7ba81444 MS |
534 | The space attributes "code" and "data" are for Harvard |
535 | architectures. The address space attributes are for architectures | |
536 | which have alternately sized pointers or pointers with alternate | |
537 | representations. */ | |
2fdde8f8 DJ |
538 | |
539 | struct type * | |
540 | make_type_with_address_space (struct type *type, int space_flag) | |
541 | { | |
542 | struct type *ntype; | |
543 | int new_flags = ((TYPE_INSTANCE_FLAGS (type) | |
876cecd0 TT |
544 | & ~(TYPE_INSTANCE_FLAG_CODE_SPACE |
545 | | TYPE_INSTANCE_FLAG_DATA_SPACE | |
546 | | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)) | |
2fdde8f8 DJ |
547 | | space_flag); |
548 | ||
549 | return make_qualified_type (type, new_flags, NULL); | |
550 | } | |
c906108c SS |
551 | |
552 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
553 | one supplied except that it may have const or volatile attributes | |
554 | CNST is a flag for setting the const attribute | |
555 | VOLTL is a flag for setting the volatile attribute | |
556 | TYPE is the base type whose variant we are creating. | |
c906108c | 557 | |
ad766c0a JB |
558 | If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to |
559 | storage to hold the new qualified type; *TYPEPTR and TYPE must be | |
560 | in the same objfile. Otherwise, allocate fresh memory for the new | |
561 | type whereever TYPE lives. If TYPEPTR is non-zero, set it to the | |
562 | new type we construct. */ | |
c906108c | 563 | struct type * |
7ba81444 MS |
564 | make_cv_type (int cnst, int voltl, |
565 | struct type *type, | |
566 | struct type **typeptr) | |
c906108c | 567 | { |
52f0bd74 AC |
568 | struct type *ntype; /* New type */ |
569 | struct type *tmp_type = type; /* tmp type */ | |
c906108c SS |
570 | struct objfile *objfile; |
571 | ||
2fdde8f8 | 572 | int new_flags = (TYPE_INSTANCE_FLAGS (type) |
876cecd0 | 573 | & ~(TYPE_INSTANCE_FLAG_CONST | TYPE_INSTANCE_FLAG_VOLATILE)); |
c906108c | 574 | |
c906108c | 575 | if (cnst) |
876cecd0 | 576 | new_flags |= TYPE_INSTANCE_FLAG_CONST; |
c906108c SS |
577 | |
578 | if (voltl) | |
876cecd0 | 579 | new_flags |= TYPE_INSTANCE_FLAG_VOLATILE; |
a02fd225 | 580 | |
2fdde8f8 | 581 | if (typeptr && *typeptr != NULL) |
a02fd225 | 582 | { |
ad766c0a JB |
583 | /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
584 | a C-V variant chain that threads across objfiles: if one | |
585 | objfile gets freed, then the other has a broken C-V chain. | |
586 | ||
587 | This code used to try to copy over the main type from TYPE to | |
588 | *TYPEPTR if they were in different objfiles, but that's | |
589 | wrong, too: TYPE may have a field list or member function | |
590 | lists, which refer to types of their own, etc. etc. The | |
591 | whole shebang would need to be copied over recursively; you | |
592 | can't have inter-objfile pointers. The only thing to do is | |
593 | to leave stub types as stub types, and look them up afresh by | |
594 | name each time you encounter them. */ | |
595 | gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type)); | |
2fdde8f8 DJ |
596 | } |
597 | ||
7ba81444 MS |
598 | ntype = make_qualified_type (type, new_flags, |
599 | typeptr ? *typeptr : NULL); | |
c906108c | 600 | |
2fdde8f8 DJ |
601 | if (typeptr != NULL) |
602 | *typeptr = ntype; | |
a02fd225 | 603 | |
2fdde8f8 | 604 | return ntype; |
a02fd225 | 605 | } |
c906108c | 606 | |
2fdde8f8 DJ |
607 | /* Replace the contents of ntype with the type *type. This changes the |
608 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
609 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 610 | |
cda6c68a JB |
611 | In order to build recursive types, it's inevitable that we'll need |
612 | to update types in place --- but this sort of indiscriminate | |
613 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
614 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
615 | clear if more steps are needed. */ | |
dd6bda65 DJ |
616 | void |
617 | replace_type (struct type *ntype, struct type *type) | |
618 | { | |
ab5d3da6 | 619 | struct type *chain; |
dd6bda65 | 620 | |
ad766c0a JB |
621 | /* These two types had better be in the same objfile. Otherwise, |
622 | the assignment of one type's main type structure to the other | |
623 | will produce a type with references to objects (names; field | |
624 | lists; etc.) allocated on an objfile other than its own. */ | |
625 | gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (ntype)); | |
626 | ||
2fdde8f8 | 627 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 628 | |
7ba81444 MS |
629 | /* The type length is not a part of the main type. Update it for |
630 | each type on the variant chain. */ | |
ab5d3da6 | 631 | chain = ntype; |
5f61c20e JK |
632 | do |
633 | { | |
634 | /* Assert that this element of the chain has no address-class bits | |
635 | set in its flags. Such type variants might have type lengths | |
636 | which are supposed to be different from the non-address-class | |
637 | variants. This assertion shouldn't ever be triggered because | |
638 | symbol readers which do construct address-class variants don't | |
639 | call replace_type(). */ | |
640 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
641 | ||
642 | TYPE_LENGTH (chain) = TYPE_LENGTH (type); | |
643 | chain = TYPE_CHAIN (chain); | |
644 | } | |
645 | while (ntype != chain); | |
ab5d3da6 | 646 | |
2fdde8f8 DJ |
647 | /* Assert that the two types have equivalent instance qualifiers. |
648 | This should be true for at least all of our debug readers. */ | |
649 | gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type)); | |
dd6bda65 DJ |
650 | } |
651 | ||
c906108c SS |
652 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
653 | May need to construct such a type if this is the first use. | |
654 | The TYPE is the type of the member. The DOMAIN is the type | |
655 | of the aggregate that the member belongs to. */ | |
656 | ||
657 | struct type * | |
0d5de010 | 658 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 659 | { |
52f0bd74 | 660 | struct type *mtype; |
c906108c | 661 | |
e9bb382b | 662 | mtype = alloc_type_copy (type); |
0d5de010 | 663 | smash_to_memberptr_type (mtype, domain, type); |
c16abbde | 664 | return mtype; |
c906108c SS |
665 | } |
666 | ||
0d5de010 DJ |
667 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
668 | ||
669 | struct type * | |
670 | lookup_methodptr_type (struct type *to_type) | |
671 | { | |
672 | struct type *mtype; | |
673 | ||
e9bb382b | 674 | mtype = alloc_type_copy (to_type); |
0d5de010 DJ |
675 | TYPE_TARGET_TYPE (mtype) = to_type; |
676 | TYPE_DOMAIN_TYPE (mtype) = TYPE_DOMAIN_TYPE (to_type); | |
ad4820ab | 677 | TYPE_LENGTH (mtype) = cplus_method_ptr_size (to_type); |
0d5de010 DJ |
678 | TYPE_CODE (mtype) = TYPE_CODE_METHODPTR; |
679 | return mtype; | |
680 | } | |
681 | ||
7ba81444 MS |
682 | /* Allocate a stub method whose return type is TYPE. This apparently |
683 | happens for speed of symbol reading, since parsing out the | |
684 | arguments to the method is cpu-intensive, the way we are doing it. | |
685 | So, we will fill in arguments later. This always returns a fresh | |
686 | type. */ | |
c906108c SS |
687 | |
688 | struct type * | |
fba45db2 | 689 | allocate_stub_method (struct type *type) |
c906108c SS |
690 | { |
691 | struct type *mtype; | |
692 | ||
e9bb382b UW |
693 | mtype = alloc_type_copy (type); |
694 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; | |
695 | TYPE_LENGTH (mtype) = 1; | |
696 | TYPE_STUB (mtype) = 1; | |
c906108c SS |
697 | TYPE_TARGET_TYPE (mtype) = type; |
698 | /* _DOMAIN_TYPE (mtype) = unknown yet */ | |
c16abbde | 699 | return mtype; |
c906108c SS |
700 | } |
701 | ||
7ba81444 MS |
702 | /* Create a range type using either a blank type supplied in |
703 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
704 | INDEX_TYPE. | |
c906108c | 705 | |
7ba81444 MS |
706 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND |
707 | to HIGH_BOUND, inclusive. | |
c906108c | 708 | |
7ba81444 MS |
709 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
710 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
c906108c SS |
711 | |
712 | struct type * | |
fba45db2 KB |
713 | create_range_type (struct type *result_type, struct type *index_type, |
714 | int low_bound, int high_bound) | |
c906108c SS |
715 | { |
716 | if (result_type == NULL) | |
e9bb382b | 717 | result_type = alloc_type_copy (index_type); |
c906108c SS |
718 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; |
719 | TYPE_TARGET_TYPE (result_type) = index_type; | |
74a9bb82 | 720 | if (TYPE_STUB (index_type)) |
876cecd0 | 721 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c SS |
722 | else |
723 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
724 | TYPE_NFIELDS (result_type) = 2; | |
1deafd4e PA |
725 | TYPE_FIELDS (result_type) = TYPE_ZALLOC (result_type, |
726 | TYPE_NFIELDS (result_type) | |
727 | * sizeof (struct field)); | |
262452ec JK |
728 | TYPE_LOW_BOUND (result_type) = low_bound; |
729 | TYPE_HIGH_BOUND (result_type) = high_bound; | |
c906108c | 730 | |
c5aa993b | 731 | if (low_bound >= 0) |
876cecd0 | 732 | TYPE_UNSIGNED (result_type) = 1; |
c906108c | 733 | |
262452ec | 734 | return result_type; |
c906108c SS |
735 | } |
736 | ||
7ba81444 MS |
737 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
738 | TYPE. Return 1 if type is a range type, 0 if it is discrete (and | |
739 | bounds will fit in LONGEST), or -1 otherwise. */ | |
c906108c SS |
740 | |
741 | int | |
fba45db2 | 742 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c SS |
743 | { |
744 | CHECK_TYPEDEF (type); | |
745 | switch (TYPE_CODE (type)) | |
746 | { | |
747 | case TYPE_CODE_RANGE: | |
748 | *lowp = TYPE_LOW_BOUND (type); | |
749 | *highp = TYPE_HIGH_BOUND (type); | |
750 | return 1; | |
751 | case TYPE_CODE_ENUM: | |
752 | if (TYPE_NFIELDS (type) > 0) | |
753 | { | |
754 | /* The enums may not be sorted by value, so search all | |
755 | entries */ | |
756 | int i; | |
757 | ||
758 | *lowp = *highp = TYPE_FIELD_BITPOS (type, 0); | |
759 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
760 | { | |
761 | if (TYPE_FIELD_BITPOS (type, i) < *lowp) | |
762 | *lowp = TYPE_FIELD_BITPOS (type, i); | |
763 | if (TYPE_FIELD_BITPOS (type, i) > *highp) | |
764 | *highp = TYPE_FIELD_BITPOS (type, i); | |
765 | } | |
766 | ||
7ba81444 | 767 | /* Set unsigned indicator if warranted. */ |
c5aa993b | 768 | if (*lowp >= 0) |
c906108c | 769 | { |
876cecd0 | 770 | TYPE_UNSIGNED (type) = 1; |
c906108c SS |
771 | } |
772 | } | |
773 | else | |
774 | { | |
775 | *lowp = 0; | |
776 | *highp = -1; | |
777 | } | |
778 | return 0; | |
779 | case TYPE_CODE_BOOL: | |
780 | *lowp = 0; | |
781 | *highp = 1; | |
782 | return 0; | |
783 | case TYPE_CODE_INT: | |
c5aa993b | 784 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
785 | return -1; |
786 | if (!TYPE_UNSIGNED (type)) | |
787 | { | |
c5aa993b | 788 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
789 | *highp = -*lowp - 1; |
790 | return 0; | |
791 | } | |
7ba81444 | 792 | /* ... fall through for unsigned ints ... */ |
c906108c SS |
793 | case TYPE_CODE_CHAR: |
794 | *lowp = 0; | |
795 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 | 796 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
7ba81444 | 797 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
c906108c SS |
798 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
799 | *highp = (*highp - 1) | *highp; | |
800 | return 0; | |
801 | default: | |
802 | return -1; | |
803 | } | |
804 | } | |
805 | ||
7ba81444 MS |
806 | /* Create an array type using either a blank type supplied in |
807 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
808 | RANGE_TYPE. | |
c906108c SS |
809 | |
810 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
811 | RANGE_TYPE. | |
812 | ||
7ba81444 MS |
813 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
814 | sure it is TYPE_CODE_UNDEF before we bash it into an array | |
815 | type? */ | |
c906108c SS |
816 | |
817 | struct type * | |
7ba81444 MS |
818 | create_array_type (struct type *result_type, |
819 | struct type *element_type, | |
fba45db2 | 820 | struct type *range_type) |
c906108c SS |
821 | { |
822 | LONGEST low_bound, high_bound; | |
823 | ||
824 | if (result_type == NULL) | |
e9bb382b UW |
825 | result_type = alloc_type_copy (range_type); |
826 | ||
c906108c SS |
827 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
828 | TYPE_TARGET_TYPE (result_type) = element_type; | |
829 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
830 | low_bound = high_bound = 0; | |
831 | CHECK_TYPEDEF (element_type); | |
ab0d6e0d JB |
832 | /* Be careful when setting the array length. Ada arrays can be |
833 | empty arrays with the high_bound being smaller than the low_bound. | |
834 | In such cases, the array length should be zero. */ | |
835 | if (high_bound < low_bound) | |
836 | TYPE_LENGTH (result_type) = 0; | |
837 | else | |
838 | TYPE_LENGTH (result_type) = | |
839 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
c906108c SS |
840 | TYPE_NFIELDS (result_type) = 1; |
841 | TYPE_FIELDS (result_type) = | |
1deafd4e | 842 | (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); |
262452ec | 843 | TYPE_INDEX_TYPE (result_type) = range_type; |
c906108c SS |
844 | TYPE_VPTR_FIELDNO (result_type) = -1; |
845 | ||
846 | /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays */ | |
847 | if (TYPE_LENGTH (result_type) == 0) | |
876cecd0 | 848 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c | 849 | |
c16abbde | 850 | return result_type; |
c906108c SS |
851 | } |
852 | ||
e3506a9f UW |
853 | struct type * |
854 | lookup_array_range_type (struct type *element_type, | |
855 | int low_bound, int high_bound) | |
856 | { | |
50810684 | 857 | struct gdbarch *gdbarch = get_type_arch (element_type); |
e3506a9f UW |
858 | struct type *index_type = builtin_type (gdbarch)->builtin_int; |
859 | struct type *range_type | |
860 | = create_range_type (NULL, index_type, low_bound, high_bound); | |
861 | return create_array_type (NULL, element_type, range_type); | |
862 | } | |
863 | ||
7ba81444 MS |
864 | /* Create a string type using either a blank type supplied in |
865 | RESULT_TYPE, or creating a new type. String types are similar | |
866 | enough to array of char types that we can use create_array_type to | |
867 | build the basic type and then bash it into a string type. | |
c906108c SS |
868 | |
869 | For fixed length strings, the range type contains 0 as the lower | |
870 | bound and the length of the string minus one as the upper bound. | |
871 | ||
7ba81444 MS |
872 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
873 | sure it is TYPE_CODE_UNDEF before we bash it into a string | |
874 | type? */ | |
c906108c SS |
875 | |
876 | struct type * | |
3b7538c0 UW |
877 | create_string_type (struct type *result_type, |
878 | struct type *string_char_type, | |
7ba81444 | 879 | struct type *range_type) |
c906108c SS |
880 | { |
881 | result_type = create_array_type (result_type, | |
f290d38e | 882 | string_char_type, |
c906108c SS |
883 | range_type); |
884 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
c16abbde | 885 | return result_type; |
c906108c SS |
886 | } |
887 | ||
e3506a9f UW |
888 | struct type * |
889 | lookup_string_range_type (struct type *string_char_type, | |
890 | int low_bound, int high_bound) | |
891 | { | |
892 | struct type *result_type; | |
893 | result_type = lookup_array_range_type (string_char_type, | |
894 | low_bound, high_bound); | |
895 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
896 | return result_type; | |
897 | } | |
898 | ||
c906108c | 899 | struct type * |
fba45db2 | 900 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c | 901 | { |
c906108c | 902 | if (result_type == NULL) |
e9bb382b UW |
903 | result_type = alloc_type_copy (domain_type); |
904 | ||
c906108c SS |
905 | TYPE_CODE (result_type) = TYPE_CODE_SET; |
906 | TYPE_NFIELDS (result_type) = 1; | |
1deafd4e | 907 | TYPE_FIELDS (result_type) = TYPE_ZALLOC (result_type, sizeof (struct field)); |
c906108c | 908 | |
74a9bb82 | 909 | if (!TYPE_STUB (domain_type)) |
c906108c | 910 | { |
f9780d5b | 911 | LONGEST low_bound, high_bound, bit_length; |
c906108c SS |
912 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
913 | low_bound = high_bound = 0; | |
914 | bit_length = high_bound - low_bound + 1; | |
915 | TYPE_LENGTH (result_type) | |
916 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
f9780d5b | 917 | if (low_bound >= 0) |
876cecd0 | 918 | TYPE_UNSIGNED (result_type) = 1; |
c906108c SS |
919 | } |
920 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
921 | ||
c16abbde | 922 | return result_type; |
c906108c SS |
923 | } |
924 | ||
ea37ba09 DJ |
925 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
926 | and any array types nested inside it. */ | |
927 | ||
928 | void | |
929 | make_vector_type (struct type *array_type) | |
930 | { | |
931 | struct type *inner_array, *elt_type; | |
932 | int flags; | |
933 | ||
934 | /* Find the innermost array type, in case the array is | |
935 | multi-dimensional. */ | |
936 | inner_array = array_type; | |
937 | while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY) | |
938 | inner_array = TYPE_TARGET_TYPE (inner_array); | |
939 | ||
940 | elt_type = TYPE_TARGET_TYPE (inner_array); | |
941 | if (TYPE_CODE (elt_type) == TYPE_CODE_INT) | |
942 | { | |
943 | flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_FLAG_NOTTEXT; | |
944 | elt_type = make_qualified_type (elt_type, flags, NULL); | |
945 | TYPE_TARGET_TYPE (inner_array) = elt_type; | |
946 | } | |
947 | ||
876cecd0 | 948 | TYPE_VECTOR (array_type) = 1; |
ea37ba09 DJ |
949 | } |
950 | ||
794ac428 | 951 | struct type * |
ac3aafc7 EZ |
952 | init_vector_type (struct type *elt_type, int n) |
953 | { | |
954 | struct type *array_type; | |
e3506a9f | 955 | array_type = lookup_array_range_type (elt_type, 0, n - 1); |
ea37ba09 | 956 | make_vector_type (array_type); |
ac3aafc7 EZ |
957 | return array_type; |
958 | } | |
959 | ||
0d5de010 DJ |
960 | /* Smash TYPE to be a type of pointers to members of DOMAIN with type |
961 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a | |
962 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
963 | TYPE doesn't include the offset (that's the value of the MEMBER | |
964 | itself), but does include the structure type into which it points | |
965 | (for some reason). | |
c906108c | 966 | |
7ba81444 MS |
967 | When "smashing" the type, we preserve the objfile that the old type |
968 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
969 | allocated. */ |
970 | ||
971 | void | |
0d5de010 DJ |
972 | smash_to_memberptr_type (struct type *type, struct type *domain, |
973 | struct type *to_type) | |
c906108c | 974 | { |
2fdde8f8 | 975 | smash_type (type); |
c906108c SS |
976 | TYPE_TARGET_TYPE (type) = to_type; |
977 | TYPE_DOMAIN_TYPE (type) = domain; | |
0d5de010 DJ |
978 | /* Assume that a data member pointer is the same size as a normal |
979 | pointer. */ | |
50810684 UW |
980 | TYPE_LENGTH (type) |
981 | = gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT; | |
0d5de010 | 982 | TYPE_CODE (type) = TYPE_CODE_MEMBERPTR; |
c906108c SS |
983 | } |
984 | ||
985 | /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE. | |
986 | METHOD just means `function that gets an extra "this" argument'. | |
987 | ||
7ba81444 MS |
988 | When "smashing" the type, we preserve the objfile that the old type |
989 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
990 | allocated. */ |
991 | ||
992 | void | |
fba45db2 | 993 | smash_to_method_type (struct type *type, struct type *domain, |
ad2f7632 DJ |
994 | struct type *to_type, struct field *args, |
995 | int nargs, int varargs) | |
c906108c | 996 | { |
2fdde8f8 | 997 | smash_type (type); |
c906108c SS |
998 | TYPE_TARGET_TYPE (type) = to_type; |
999 | TYPE_DOMAIN_TYPE (type) = domain; | |
ad2f7632 DJ |
1000 | TYPE_FIELDS (type) = args; |
1001 | TYPE_NFIELDS (type) = nargs; | |
1002 | if (varargs) | |
876cecd0 | 1003 | TYPE_VARARGS (type) = 1; |
c906108c SS |
1004 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
1005 | TYPE_CODE (type) = TYPE_CODE_METHOD; | |
1006 | } | |
1007 | ||
1008 | /* Return a typename for a struct/union/enum type without "struct ", | |
1009 | "union ", or "enum ". If the type has a NULL name, return NULL. */ | |
1010 | ||
1011 | char * | |
aa1ee363 | 1012 | type_name_no_tag (const struct type *type) |
c906108c SS |
1013 | { |
1014 | if (TYPE_TAG_NAME (type) != NULL) | |
1015 | return TYPE_TAG_NAME (type); | |
1016 | ||
7ba81444 MS |
1017 | /* Is there code which expects this to return the name if there is |
1018 | no tag name? My guess is that this is mainly used for C++ in | |
1019 | cases where the two will always be the same. */ | |
c906108c SS |
1020 | return TYPE_NAME (type); |
1021 | } | |
1022 | ||
7ba81444 MS |
1023 | /* Lookup a typedef or primitive type named NAME, visible in lexical |
1024 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
1025 | suitably defined. */ | |
c906108c SS |
1026 | |
1027 | struct type * | |
e6c014f2 UW |
1028 | lookup_typename (const struct language_defn *language, |
1029 | struct gdbarch *gdbarch, char *name, | |
1030 | struct block *block, int noerr) | |
c906108c | 1031 | { |
52f0bd74 AC |
1032 | struct symbol *sym; |
1033 | struct type *tmp; | |
c906108c | 1034 | |
2570f2b7 | 1035 | sym = lookup_symbol (name, block, VAR_DOMAIN, 0); |
c906108c SS |
1036 | if (sym == NULL || SYMBOL_CLASS (sym) != LOC_TYPEDEF) |
1037 | { | |
e6c014f2 | 1038 | tmp = language_lookup_primitive_type_by_name (language, gdbarch, name); |
c906108c SS |
1039 | if (tmp) |
1040 | { | |
c16abbde | 1041 | return tmp; |
c906108c SS |
1042 | } |
1043 | else if (!tmp && noerr) | |
1044 | { | |
c16abbde | 1045 | return NULL; |
c906108c SS |
1046 | } |
1047 | else | |
1048 | { | |
8a3fe4f8 | 1049 | error (_("No type named %s."), name); |
c906108c SS |
1050 | } |
1051 | } | |
1052 | return (SYMBOL_TYPE (sym)); | |
1053 | } | |
1054 | ||
1055 | struct type * | |
e6c014f2 UW |
1056 | lookup_unsigned_typename (const struct language_defn *language, |
1057 | struct gdbarch *gdbarch, char *name) | |
c906108c SS |
1058 | { |
1059 | char *uns = alloca (strlen (name) + 10); | |
1060 | ||
1061 | strcpy (uns, "unsigned "); | |
1062 | strcpy (uns + 9, name); | |
e6c014f2 | 1063 | return lookup_typename (language, gdbarch, uns, (struct block *) NULL, 0); |
c906108c SS |
1064 | } |
1065 | ||
1066 | struct type * | |
e6c014f2 UW |
1067 | lookup_signed_typename (const struct language_defn *language, |
1068 | struct gdbarch *gdbarch, char *name) | |
c906108c SS |
1069 | { |
1070 | struct type *t; | |
1071 | char *uns = alloca (strlen (name) + 8); | |
1072 | ||
1073 | strcpy (uns, "signed "); | |
1074 | strcpy (uns + 7, name); | |
e6c014f2 | 1075 | t = lookup_typename (language, gdbarch, uns, (struct block *) NULL, 1); |
7ba81444 | 1076 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
c906108c SS |
1077 | if (t != NULL) |
1078 | return t; | |
e6c014f2 | 1079 | return lookup_typename (language, gdbarch, name, (struct block *) NULL, 0); |
c906108c SS |
1080 | } |
1081 | ||
1082 | /* Lookup a structure type named "struct NAME", | |
1083 | visible in lexical block BLOCK. */ | |
1084 | ||
1085 | struct type * | |
fba45db2 | 1086 | lookup_struct (char *name, struct block *block) |
c906108c | 1087 | { |
52f0bd74 | 1088 | struct symbol *sym; |
c906108c | 1089 | |
2570f2b7 | 1090 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1091 | |
1092 | if (sym == NULL) | |
1093 | { | |
8a3fe4f8 | 1094 | error (_("No struct type named %s."), name); |
c906108c SS |
1095 | } |
1096 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1097 | { | |
7ba81444 MS |
1098 | error (_("This context has class, union or enum %s, not a struct."), |
1099 | name); | |
c906108c SS |
1100 | } |
1101 | return (SYMBOL_TYPE (sym)); | |
1102 | } | |
1103 | ||
1104 | /* Lookup a union type named "union NAME", | |
1105 | visible in lexical block BLOCK. */ | |
1106 | ||
1107 | struct type * | |
fba45db2 | 1108 | lookup_union (char *name, struct block *block) |
c906108c | 1109 | { |
52f0bd74 | 1110 | struct symbol *sym; |
c5aa993b | 1111 | struct type *t; |
c906108c | 1112 | |
2570f2b7 | 1113 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1114 | |
1115 | if (sym == NULL) | |
8a3fe4f8 | 1116 | error (_("No union type named %s."), name); |
c906108c | 1117 | |
c5aa993b | 1118 | t = SYMBOL_TYPE (sym); |
c906108c SS |
1119 | |
1120 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
c16abbde | 1121 | return t; |
c906108c SS |
1122 | |
1123 | /* C++ unions may come out with TYPE_CODE_CLASS, but we look at | |
1124 | * a further "declared_type" field to discover it is really a union. | |
1125 | */ | |
c5aa993b JM |
1126 | if (HAVE_CPLUS_STRUCT (t)) |
1127 | if (TYPE_DECLARED_TYPE (t) == DECLARED_TYPE_UNION) | |
c16abbde | 1128 | return t; |
c906108c | 1129 | |
7ba81444 MS |
1130 | /* If we get here, it's not a union. */ |
1131 | error (_("This context has class, struct or enum %s, not a union."), | |
1132 | name); | |
c906108c SS |
1133 | } |
1134 | ||
1135 | ||
1136 | /* Lookup an enum type named "enum NAME", | |
1137 | visible in lexical block BLOCK. */ | |
1138 | ||
1139 | struct type * | |
fba45db2 | 1140 | lookup_enum (char *name, struct block *block) |
c906108c | 1141 | { |
52f0bd74 | 1142 | struct symbol *sym; |
c906108c | 1143 | |
2570f2b7 | 1144 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1145 | if (sym == NULL) |
1146 | { | |
8a3fe4f8 | 1147 | error (_("No enum type named %s."), name); |
c906108c SS |
1148 | } |
1149 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
1150 | { | |
7ba81444 MS |
1151 | error (_("This context has class, struct or union %s, not an enum."), |
1152 | name); | |
c906108c SS |
1153 | } |
1154 | return (SYMBOL_TYPE (sym)); | |
1155 | } | |
1156 | ||
1157 | /* Lookup a template type named "template NAME<TYPE>", | |
1158 | visible in lexical block BLOCK. */ | |
1159 | ||
1160 | struct type * | |
7ba81444 MS |
1161 | lookup_template_type (char *name, struct type *type, |
1162 | struct block *block) | |
c906108c SS |
1163 | { |
1164 | struct symbol *sym; | |
7ba81444 MS |
1165 | char *nam = (char *) |
1166 | alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4); | |
c906108c SS |
1167 | strcpy (nam, name); |
1168 | strcat (nam, "<"); | |
0004e5a2 | 1169 | strcat (nam, TYPE_NAME (type)); |
7ba81444 | 1170 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1171 | |
2570f2b7 | 1172 | sym = lookup_symbol (nam, block, VAR_DOMAIN, 0); |
c906108c SS |
1173 | |
1174 | if (sym == NULL) | |
1175 | { | |
8a3fe4f8 | 1176 | error (_("No template type named %s."), name); |
c906108c SS |
1177 | } |
1178 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1179 | { | |
7ba81444 MS |
1180 | error (_("This context has class, union or enum %s, not a struct."), |
1181 | name); | |
c906108c SS |
1182 | } |
1183 | return (SYMBOL_TYPE (sym)); | |
1184 | } | |
1185 | ||
7ba81444 MS |
1186 | /* Given a type TYPE, lookup the type of the component of type named |
1187 | NAME. | |
c906108c | 1188 | |
7ba81444 MS |
1189 | TYPE can be either a struct or union, or a pointer or reference to |
1190 | a struct or union. If it is a pointer or reference, its target | |
1191 | type is automatically used. Thus '.' and '->' are interchangable, | |
1192 | as specified for the definitions of the expression element types | |
1193 | STRUCTOP_STRUCT and STRUCTOP_PTR. | |
c906108c SS |
1194 | |
1195 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
1196 | If NAME is the name of a baseclass type, return that type. */ | |
1197 | ||
1198 | struct type * | |
fba45db2 | 1199 | lookup_struct_elt_type (struct type *type, char *name, int noerr) |
c906108c SS |
1200 | { |
1201 | int i; | |
1202 | ||
1203 | for (;;) | |
1204 | { | |
1205 | CHECK_TYPEDEF (type); | |
1206 | if (TYPE_CODE (type) != TYPE_CODE_PTR | |
1207 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1208 | break; | |
1209 | type = TYPE_TARGET_TYPE (type); | |
1210 | } | |
1211 | ||
687d6395 MS |
1212 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
1213 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
c906108c SS |
1214 | { |
1215 | target_terminal_ours (); | |
1216 | gdb_flush (gdb_stdout); | |
1217 | fprintf_unfiltered (gdb_stderr, "Type "); | |
1218 | type_print (type, "", gdb_stderr, -1); | |
8a3fe4f8 | 1219 | error (_(" is not a structure or union type.")); |
c906108c SS |
1220 | } |
1221 | ||
1222 | #if 0 | |
7ba81444 MS |
1223 | /* FIXME: This change put in by Michael seems incorrect for the case |
1224 | where the structure tag name is the same as the member name. | |
1225 | I.E. when doing "ptype bell->bar" for "struct foo { int bar; int | |
1226 | foo; } bell;" Disabled by fnf. */ | |
c906108c SS |
1227 | { |
1228 | char *typename; | |
1229 | ||
1230 | typename = type_name_no_tag (type); | |
762f08a3 | 1231 | if (typename != NULL && strcmp (typename, name) == 0) |
c906108c SS |
1232 | return type; |
1233 | } | |
1234 | #endif | |
1235 | ||
1236 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1237 | { | |
1238 | char *t_field_name = TYPE_FIELD_NAME (type, i); | |
1239 | ||
db577aea | 1240 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c SS |
1241 | { |
1242 | return TYPE_FIELD_TYPE (type, i); | |
1243 | } | |
1244 | } | |
1245 | ||
1246 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1247 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1248 | { | |
1249 | struct type *t; | |
1250 | ||
9733fc94 | 1251 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 1); |
c906108c SS |
1252 | if (t != NULL) |
1253 | { | |
1254 | return t; | |
1255 | } | |
1256 | } | |
1257 | ||
1258 | if (noerr) | |
1259 | { | |
1260 | return NULL; | |
1261 | } | |
c5aa993b | 1262 | |
c906108c SS |
1263 | target_terminal_ours (); |
1264 | gdb_flush (gdb_stdout); | |
1265 | fprintf_unfiltered (gdb_stderr, "Type "); | |
1266 | type_print (type, "", gdb_stderr, -1); | |
1267 | fprintf_unfiltered (gdb_stderr, " has no component named "); | |
1268 | fputs_filtered (name, gdb_stderr); | |
8a3fe4f8 | 1269 | error ((".")); |
c5aa993b | 1270 | return (struct type *) -1; /* For lint */ |
c906108c SS |
1271 | } |
1272 | ||
81fe8080 DE |
1273 | /* Lookup the vptr basetype/fieldno values for TYPE. |
1274 | If found store vptr_basetype in *BASETYPEP if non-NULL, and return | |
1275 | vptr_fieldno. Also, if found and basetype is from the same objfile, | |
1276 | cache the results. | |
1277 | If not found, return -1 and ignore BASETYPEP. | |
1278 | Callers should be aware that in some cases (for example, | |
c906108c | 1279 | the type or one of its baseclasses is a stub type and we are |
d48cc9dd DJ |
1280 | debugging a .o file, or the compiler uses DWARF-2 and is not GCC), |
1281 | this function will not be able to find the | |
7ba81444 | 1282 | virtual function table pointer, and vptr_fieldno will remain -1 and |
81fe8080 | 1283 | vptr_basetype will remain NULL or incomplete. */ |
c906108c | 1284 | |
81fe8080 DE |
1285 | int |
1286 | get_vptr_fieldno (struct type *type, struct type **basetypep) | |
c906108c SS |
1287 | { |
1288 | CHECK_TYPEDEF (type); | |
1289 | ||
1290 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1291 | { | |
1292 | int i; | |
1293 | ||
7ba81444 MS |
1294 | /* We must start at zero in case the first (and only) baseclass |
1295 | is virtual (and hence we cannot share the table pointer). */ | |
c906108c SS |
1296 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1297 | { | |
81fe8080 DE |
1298 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
1299 | int fieldno; | |
1300 | struct type *basetype; | |
1301 | ||
1302 | fieldno = get_vptr_fieldno (baseclass, &basetype); | |
1303 | if (fieldno >= 0) | |
c906108c | 1304 | { |
81fe8080 DE |
1305 | /* If the type comes from a different objfile we can't cache |
1306 | it, it may have a different lifetime. PR 2384 */ | |
5ef73790 | 1307 | if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype)) |
81fe8080 DE |
1308 | { |
1309 | TYPE_VPTR_FIELDNO (type) = fieldno; | |
1310 | TYPE_VPTR_BASETYPE (type) = basetype; | |
1311 | } | |
1312 | if (basetypep) | |
1313 | *basetypep = basetype; | |
1314 | return fieldno; | |
c906108c SS |
1315 | } |
1316 | } | |
81fe8080 DE |
1317 | |
1318 | /* Not found. */ | |
1319 | return -1; | |
1320 | } | |
1321 | else | |
1322 | { | |
1323 | if (basetypep) | |
1324 | *basetypep = TYPE_VPTR_BASETYPE (type); | |
1325 | return TYPE_VPTR_FIELDNO (type); | |
c906108c SS |
1326 | } |
1327 | } | |
1328 | ||
44e1a9eb DJ |
1329 | static void |
1330 | stub_noname_complaint (void) | |
1331 | { | |
e2e0b3e5 | 1332 | complaint (&symfile_complaints, _("stub type has NULL name")); |
44e1a9eb DJ |
1333 | } |
1334 | ||
c906108c SS |
1335 | /* Added by Bryan Boreham, Kewill, Sun Sep 17 18:07:17 1989. |
1336 | ||
1337 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
1338 | we can find a full definition in some other file. If so, copy this | |
7ba81444 MS |
1339 | definition, so we can use it in future. There used to be a comment |
1340 | (but not any code) that if we don't find a full definition, we'd | |
1341 | set a flag so we don't spend time in the future checking the same | |
1342 | type. That would be a mistake, though--we might load in more | |
1343 | symbols which contain a full definition for the type. | |
c906108c | 1344 | |
7b83ea04 | 1345 | This used to be coded as a macro, but I don't think it is called |
c906108c SS |
1346 | often enough to merit such treatment. */ |
1347 | ||
7ba81444 MS |
1348 | /* Find the real type of TYPE. This function returns the real type, |
1349 | after removing all layers of typedefs and completing opaque or stub | |
1350 | types. Completion changes the TYPE argument, but stripping of | |
1351 | typedefs does not. */ | |
c906108c SS |
1352 | |
1353 | struct type * | |
a02fd225 | 1354 | check_typedef (struct type *type) |
c906108c SS |
1355 | { |
1356 | struct type *orig_type = type; | |
a02fd225 DJ |
1357 | int is_const, is_volatile; |
1358 | ||
423c0af8 MS |
1359 | gdb_assert (type); |
1360 | ||
c906108c SS |
1361 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
1362 | { | |
1363 | if (!TYPE_TARGET_TYPE (type)) | |
1364 | { | |
c5aa993b | 1365 | char *name; |
c906108c SS |
1366 | struct symbol *sym; |
1367 | ||
1368 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 1369 | reading a symtab. Infinite recursion is one danger. */ |
c906108c SS |
1370 | if (currently_reading_symtab) |
1371 | return type; | |
1372 | ||
1373 | name = type_name_no_tag (type); | |
7ba81444 MS |
1374 | /* FIXME: shouldn't we separately check the TYPE_NAME and |
1375 | the TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or | |
1376 | VAR_DOMAIN as appropriate? (this code was written before | |
1377 | TYPE_NAME and TYPE_TAG_NAME were separate). */ | |
c906108c SS |
1378 | if (name == NULL) |
1379 | { | |
23136709 | 1380 | stub_noname_complaint (); |
c906108c SS |
1381 | return type; |
1382 | } | |
2570f2b7 | 1383 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0); |
c906108c SS |
1384 | if (sym) |
1385 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
7ba81444 | 1386 | else /* TYPE_CODE_UNDEF */ |
e9bb382b | 1387 | TYPE_TARGET_TYPE (type) = alloc_type_arch (get_type_arch (type)); |
c906108c SS |
1388 | } |
1389 | type = TYPE_TARGET_TYPE (type); | |
1390 | } | |
1391 | ||
a02fd225 DJ |
1392 | is_const = TYPE_CONST (type); |
1393 | is_volatile = TYPE_VOLATILE (type); | |
1394 | ||
7ba81444 MS |
1395 | /* If this is a struct/class/union with no fields, then check |
1396 | whether a full definition exists somewhere else. This is for | |
1397 | systems where a type definition with no fields is issued for such | |
1398 | types, instead of identifying them as stub types in the first | |
1399 | place. */ | |
c5aa993b | 1400 | |
7ba81444 MS |
1401 | if (TYPE_IS_OPAQUE (type) |
1402 | && opaque_type_resolution | |
1403 | && !currently_reading_symtab) | |
c906108c | 1404 | { |
c5aa993b JM |
1405 | char *name = type_name_no_tag (type); |
1406 | struct type *newtype; | |
c906108c SS |
1407 | if (name == NULL) |
1408 | { | |
23136709 | 1409 | stub_noname_complaint (); |
c906108c SS |
1410 | return type; |
1411 | } | |
1412 | newtype = lookup_transparent_type (name); | |
ad766c0a | 1413 | |
c906108c | 1414 | if (newtype) |
ad766c0a | 1415 | { |
7ba81444 MS |
1416 | /* If the resolved type and the stub are in the same |
1417 | objfile, then replace the stub type with the real deal. | |
1418 | But if they're in separate objfiles, leave the stub | |
1419 | alone; we'll just look up the transparent type every time | |
1420 | we call check_typedef. We can't create pointers between | |
1421 | types allocated to different objfiles, since they may | |
1422 | have different lifetimes. Trying to copy NEWTYPE over to | |
1423 | TYPE's objfile is pointless, too, since you'll have to | |
1424 | move over any other types NEWTYPE refers to, which could | |
1425 | be an unbounded amount of stuff. */ | |
ad766c0a JB |
1426 | if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
1427 | make_cv_type (is_const, is_volatile, newtype, &type); | |
1428 | else | |
1429 | type = newtype; | |
1430 | } | |
c906108c | 1431 | } |
7ba81444 MS |
1432 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
1433 | types. */ | |
74a9bb82 | 1434 | else if (TYPE_STUB (type) && !currently_reading_symtab) |
c906108c | 1435 | { |
c5aa993b | 1436 | char *name = type_name_no_tag (type); |
c906108c | 1437 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
176620f1 | 1438 | TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or VAR_DOMAIN |
7b83ea04 AC |
1439 | as appropriate? (this code was written before TYPE_NAME and |
1440 | TYPE_TAG_NAME were separate). */ | |
c906108c SS |
1441 | struct symbol *sym; |
1442 | if (name == NULL) | |
1443 | { | |
23136709 | 1444 | stub_noname_complaint (); |
c906108c SS |
1445 | return type; |
1446 | } | |
2570f2b7 | 1447 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0); |
c906108c | 1448 | if (sym) |
c26f2453 JB |
1449 | { |
1450 | /* Same as above for opaque types, we can replace the stub | |
1451 | with the complete type only if they are int the same | |
1452 | objfile. */ | |
1453 | if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type)) | |
7ba81444 MS |
1454 | make_cv_type (is_const, is_volatile, |
1455 | SYMBOL_TYPE (sym), &type); | |
c26f2453 JB |
1456 | else |
1457 | type = SYMBOL_TYPE (sym); | |
1458 | } | |
c906108c SS |
1459 | } |
1460 | ||
74a9bb82 | 1461 | if (TYPE_TARGET_STUB (type)) |
c906108c SS |
1462 | { |
1463 | struct type *range_type; | |
1464 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1465 | ||
74a9bb82 | 1466 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
c5aa993b | 1467 | { |
7ba81444 | 1468 | /* Empty. */ |
c5aa993b | 1469 | } |
c906108c SS |
1470 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY |
1471 | && TYPE_NFIELDS (type) == 1 | |
262452ec | 1472 | && (TYPE_CODE (range_type = TYPE_INDEX_TYPE (type)) |
c906108c SS |
1473 | == TYPE_CODE_RANGE)) |
1474 | { | |
1475 | /* Now recompute the length of the array type, based on its | |
ab0d6e0d JB |
1476 | number of elements and the target type's length. |
1477 | Watch out for Ada null Ada arrays where the high bound | |
1478 | is smaller than the low bound. */ | |
262452ec JK |
1479 | const int low_bound = TYPE_LOW_BOUND (range_type); |
1480 | const int high_bound = TYPE_HIGH_BOUND (range_type); | |
ab0d6e0d JB |
1481 | int nb_elements; |
1482 | ||
1483 | if (high_bound < low_bound) | |
1484 | nb_elements = 0; | |
1485 | else | |
1486 | nb_elements = high_bound - low_bound + 1; | |
1487 | ||
1488 | TYPE_LENGTH (type) = nb_elements * TYPE_LENGTH (target_type); | |
876cecd0 | 1489 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
1490 | } |
1491 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) | |
1492 | { | |
1493 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
876cecd0 | 1494 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
1495 | } |
1496 | } | |
7ba81444 | 1497 | /* Cache TYPE_LENGTH for future use. */ |
c906108c SS |
1498 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
1499 | return type; | |
1500 | } | |
1501 | ||
7ba81444 | 1502 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
48319d1f | 1503 | occurs, silently return a void type. */ |
c91ecb25 | 1504 | |
b9362cc7 | 1505 | static struct type * |
48319d1f | 1506 | safe_parse_type (struct gdbarch *gdbarch, char *p, int length) |
c91ecb25 ND |
1507 | { |
1508 | struct ui_file *saved_gdb_stderr; | |
1509 | struct type *type; | |
1510 | ||
7ba81444 | 1511 | /* Suppress error messages. */ |
c91ecb25 ND |
1512 | saved_gdb_stderr = gdb_stderr; |
1513 | gdb_stderr = ui_file_new (); | |
1514 | ||
7ba81444 | 1515 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
c91ecb25 | 1516 | if (!gdb_parse_and_eval_type (p, length, &type)) |
48319d1f | 1517 | type = builtin_type (gdbarch)->builtin_void; |
c91ecb25 | 1518 | |
7ba81444 | 1519 | /* Stop suppressing error messages. */ |
c91ecb25 ND |
1520 | ui_file_delete (gdb_stderr); |
1521 | gdb_stderr = saved_gdb_stderr; | |
1522 | ||
1523 | return type; | |
1524 | } | |
1525 | ||
c906108c SS |
1526 | /* Ugly hack to convert method stubs into method types. |
1527 | ||
7ba81444 MS |
1528 | He ain't kiddin'. This demangles the name of the method into a |
1529 | string including argument types, parses out each argument type, | |
1530 | generates a string casting a zero to that type, evaluates the | |
1531 | string, and stuffs the resulting type into an argtype vector!!! | |
1532 | Then it knows the type of the whole function (including argument | |
1533 | types for overloading), which info used to be in the stab's but was | |
1534 | removed to hack back the space required for them. */ | |
c906108c | 1535 | |
de17c821 | 1536 | static void |
fba45db2 | 1537 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c | 1538 | { |
50810684 | 1539 | struct gdbarch *gdbarch = get_type_arch (type); |
c906108c SS |
1540 | struct fn_field *f; |
1541 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
1542 | char *demangled_name = cplus_demangle (mangled_name, | |
1543 | DMGL_PARAMS | DMGL_ANSI); | |
1544 | char *argtypetext, *p; | |
1545 | int depth = 0, argcount = 1; | |
ad2f7632 | 1546 | struct field *argtypes; |
c906108c SS |
1547 | struct type *mtype; |
1548 | ||
1549 | /* Make sure we got back a function string that we can use. */ | |
1550 | if (demangled_name) | |
1551 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
1552 | else |
1553 | p = NULL; | |
c906108c SS |
1554 | |
1555 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
1556 | error (_("Internal: Cannot demangle mangled name `%s'."), |
1557 | mangled_name); | |
c906108c SS |
1558 | |
1559 | /* Now, read in the parameters that define this type. */ | |
1560 | p += 1; | |
1561 | argtypetext = p; | |
1562 | while (*p) | |
1563 | { | |
070ad9f0 | 1564 | if (*p == '(' || *p == '<') |
c906108c SS |
1565 | { |
1566 | depth += 1; | |
1567 | } | |
070ad9f0 | 1568 | else if (*p == ')' || *p == '>') |
c906108c SS |
1569 | { |
1570 | depth -= 1; | |
1571 | } | |
1572 | else if (*p == ',' && depth == 0) | |
1573 | { | |
1574 | argcount += 1; | |
1575 | } | |
1576 | ||
1577 | p += 1; | |
1578 | } | |
1579 | ||
ad2f7632 DJ |
1580 | /* If we read one argument and it was ``void'', don't count it. */ |
1581 | if (strncmp (argtypetext, "(void)", 6) == 0) | |
1582 | argcount -= 1; | |
c906108c | 1583 | |
ad2f7632 DJ |
1584 | /* We need one extra slot, for the THIS pointer. */ |
1585 | ||
1586 | argtypes = (struct field *) | |
1587 | TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); | |
c906108c | 1588 | p = argtypetext; |
4a1970e4 DJ |
1589 | |
1590 | /* Add THIS pointer for non-static methods. */ | |
1591 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
1592 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
1593 | argcount = 0; | |
1594 | else | |
1595 | { | |
ad2f7632 | 1596 | argtypes[0].type = lookup_pointer_type (type); |
4a1970e4 DJ |
1597 | argcount = 1; |
1598 | } | |
c906108c | 1599 | |
c5aa993b | 1600 | if (*p != ')') /* () means no args, skip while */ |
c906108c SS |
1601 | { |
1602 | depth = 0; | |
1603 | while (*p) | |
1604 | { | |
1605 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
1606 | { | |
ad2f7632 DJ |
1607 | /* Avoid parsing of ellipsis, they will be handled below. |
1608 | Also avoid ``void'' as above. */ | |
1609 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 | |
1610 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 1611 | { |
ad2f7632 | 1612 | argtypes[argcount].type = |
48319d1f | 1613 | safe_parse_type (gdbarch, argtypetext, p - argtypetext); |
c906108c SS |
1614 | argcount += 1; |
1615 | } | |
1616 | argtypetext = p + 1; | |
1617 | } | |
1618 | ||
070ad9f0 | 1619 | if (*p == '(' || *p == '<') |
c906108c SS |
1620 | { |
1621 | depth += 1; | |
1622 | } | |
070ad9f0 | 1623 | else if (*p == ')' || *p == '>') |
c906108c SS |
1624 | { |
1625 | depth -= 1; | |
1626 | } | |
1627 | ||
1628 | p += 1; | |
1629 | } | |
1630 | } | |
1631 | ||
c906108c SS |
1632 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
1633 | ||
1634 | /* Now update the old "stub" type into a real type. */ | |
1635 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
1636 | TYPE_DOMAIN_TYPE (mtype) = type; | |
ad2f7632 DJ |
1637 | TYPE_FIELDS (mtype) = argtypes; |
1638 | TYPE_NFIELDS (mtype) = argcount; | |
876cecd0 | 1639 | TYPE_STUB (mtype) = 0; |
c906108c | 1640 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
ad2f7632 | 1641 | if (p[-2] == '.') |
876cecd0 | 1642 | TYPE_VARARGS (mtype) = 1; |
ad2f7632 DJ |
1643 | |
1644 | xfree (demangled_name); | |
c906108c SS |
1645 | } |
1646 | ||
7ba81444 MS |
1647 | /* This is the external interface to check_stub_method, above. This |
1648 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
1649 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
1650 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
1651 | correct. | |
de17c821 DJ |
1652 | |
1653 | This function unfortunately can not die until stabs do. */ | |
1654 | ||
1655 | void | |
1656 | check_stub_method_group (struct type *type, int method_id) | |
1657 | { | |
1658 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
1659 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
f710f4fc | 1660 | int j, found_stub = 0; |
de17c821 DJ |
1661 | |
1662 | for (j = 0; j < len; j++) | |
1663 | if (TYPE_FN_FIELD_STUB (f, j)) | |
1664 | { | |
1665 | found_stub = 1; | |
1666 | check_stub_method (type, method_id, j); | |
1667 | } | |
1668 | ||
7ba81444 MS |
1669 | /* GNU v3 methods with incorrect names were corrected when we read |
1670 | in type information, because it was cheaper to do it then. The | |
1671 | only GNU v2 methods with incorrect method names are operators and | |
1672 | destructors; destructors were also corrected when we read in type | |
1673 | information. | |
de17c821 DJ |
1674 | |
1675 | Therefore the only thing we need to handle here are v2 operator | |
1676 | names. */ | |
1677 | if (found_stub && strncmp (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z", 2) != 0) | |
1678 | { | |
1679 | int ret; | |
1680 | char dem_opname[256]; | |
1681 | ||
7ba81444 MS |
1682 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
1683 | method_id), | |
de17c821 DJ |
1684 | dem_opname, DMGL_ANSI); |
1685 | if (!ret) | |
7ba81444 MS |
1686 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
1687 | method_id), | |
de17c821 DJ |
1688 | dem_opname, 0); |
1689 | if (ret) | |
1690 | TYPE_FN_FIELDLIST_NAME (type, method_id) = xstrdup (dem_opname); | |
1691 | } | |
1692 | } | |
1693 | ||
c906108c SS |
1694 | const struct cplus_struct_type cplus_struct_default; |
1695 | ||
1696 | void | |
fba45db2 | 1697 | allocate_cplus_struct_type (struct type *type) |
c906108c SS |
1698 | { |
1699 | if (!HAVE_CPLUS_STRUCT (type)) | |
1700 | { | |
1701 | TYPE_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
1702 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
c5aa993b | 1703 | *(TYPE_CPLUS_SPECIFIC (type)) = cplus_struct_default; |
c906108c SS |
1704 | } |
1705 | } | |
1706 | ||
1707 | /* Helper function to initialize the standard scalar types. | |
1708 | ||
e9bb382b UW |
1709 | If NAME is non-NULL, then we make a copy of the string pointed |
1710 | to by name in the objfile_obstack for that objfile, and initialize | |
1711 | the type name to that copy. There are places (mipsread.c in particular), | |
1712 | where init_type is called with a NULL value for NAME). */ | |
c906108c SS |
1713 | |
1714 | struct type * | |
7ba81444 MS |
1715 | init_type (enum type_code code, int length, int flags, |
1716 | char *name, struct objfile *objfile) | |
c906108c | 1717 | { |
52f0bd74 | 1718 | struct type *type; |
c906108c SS |
1719 | |
1720 | type = alloc_type (objfile); | |
1721 | TYPE_CODE (type) = code; | |
1722 | TYPE_LENGTH (type) = length; | |
876cecd0 TT |
1723 | |
1724 | gdb_assert (!(flags & (TYPE_FLAG_MIN - 1))); | |
1725 | if (flags & TYPE_FLAG_UNSIGNED) | |
1726 | TYPE_UNSIGNED (type) = 1; | |
1727 | if (flags & TYPE_FLAG_NOSIGN) | |
1728 | TYPE_NOSIGN (type) = 1; | |
1729 | if (flags & TYPE_FLAG_STUB) | |
1730 | TYPE_STUB (type) = 1; | |
1731 | if (flags & TYPE_FLAG_TARGET_STUB) | |
1732 | TYPE_TARGET_STUB (type) = 1; | |
1733 | if (flags & TYPE_FLAG_STATIC) | |
1734 | TYPE_STATIC (type) = 1; | |
1735 | if (flags & TYPE_FLAG_PROTOTYPED) | |
1736 | TYPE_PROTOTYPED (type) = 1; | |
1737 | if (flags & TYPE_FLAG_INCOMPLETE) | |
1738 | TYPE_INCOMPLETE (type) = 1; | |
1739 | if (flags & TYPE_FLAG_VARARGS) | |
1740 | TYPE_VARARGS (type) = 1; | |
1741 | if (flags & TYPE_FLAG_VECTOR) | |
1742 | TYPE_VECTOR (type) = 1; | |
1743 | if (flags & TYPE_FLAG_STUB_SUPPORTED) | |
1744 | TYPE_STUB_SUPPORTED (type) = 1; | |
1745 | if (flags & TYPE_FLAG_NOTTEXT) | |
1746 | TYPE_NOTTEXT (type) = 1; | |
1747 | if (flags & TYPE_FLAG_FIXED_INSTANCE) | |
1748 | TYPE_FIXED_INSTANCE (type) = 1; | |
1749 | ||
e9bb382b UW |
1750 | if (name) |
1751 | TYPE_NAME (type) = obsavestring (name, strlen (name), | |
1752 | &objfile->objfile_obstack); | |
c906108c SS |
1753 | |
1754 | /* C++ fancies. */ | |
1755 | ||
973ccf8b | 1756 | if (name && strcmp (name, "char") == 0) |
876cecd0 | 1757 | TYPE_NOSIGN (type) = 1; |
973ccf8b | 1758 | |
5c4e30ca DC |
1759 | if (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION |
1760 | || code == TYPE_CODE_NAMESPACE) | |
c906108c SS |
1761 | { |
1762 | INIT_CPLUS_SPECIFIC (type); | |
1763 | } | |
c16abbde | 1764 | return type; |
c906108c SS |
1765 | } |
1766 | ||
c906108c | 1767 | int |
fba45db2 | 1768 | can_dereference (struct type *t) |
c906108c | 1769 | { |
7ba81444 MS |
1770 | /* FIXME: Should we return true for references as well as |
1771 | pointers? */ | |
c906108c SS |
1772 | CHECK_TYPEDEF (t); |
1773 | return | |
1774 | (t != NULL | |
1775 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
1776 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
1777 | } | |
1778 | ||
adf40b2e | 1779 | int |
fba45db2 | 1780 | is_integral_type (struct type *t) |
adf40b2e JM |
1781 | { |
1782 | CHECK_TYPEDEF (t); | |
1783 | return | |
1784 | ((t != NULL) | |
d4f3574e SS |
1785 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
1786 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
4f2aea11 | 1787 | || (TYPE_CODE (t) == TYPE_CODE_FLAGS) |
d4f3574e SS |
1788 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) |
1789 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
1790 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
1791 | } |
1792 | ||
7b83ea04 | 1793 | /* Check whether BASE is an ancestor or base class or DCLASS |
c906108c SS |
1794 | Return 1 if so, and 0 if not. |
1795 | Note: callers may want to check for identity of the types before | |
1796 | calling this function -- identical types are considered to satisfy | |
7ba81444 | 1797 | the ancestor relationship even if they're identical. */ |
c906108c SS |
1798 | |
1799 | int | |
fba45db2 | 1800 | is_ancestor (struct type *base, struct type *dclass) |
c906108c SS |
1801 | { |
1802 | int i; | |
c5aa993b | 1803 | |
c906108c SS |
1804 | CHECK_TYPEDEF (base); |
1805 | CHECK_TYPEDEF (dclass); | |
1806 | ||
1807 | if (base == dclass) | |
1808 | return 1; | |
687d6395 MS |
1809 | if (TYPE_NAME (base) && TYPE_NAME (dclass) |
1810 | && !strcmp (TYPE_NAME (base), TYPE_NAME (dclass))) | |
6b1ba9a0 | 1811 | return 1; |
c906108c SS |
1812 | |
1813 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1814 | if (is_ancestor (base, TYPE_BASECLASS (dclass, i))) | |
1815 | return 1; | |
1816 | ||
1817 | return 0; | |
1818 | } | |
c906108c SS |
1819 | \f |
1820 | ||
c5aa993b | 1821 | |
c906108c SS |
1822 | /* Functions for overload resolution begin here */ |
1823 | ||
1824 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
1825 | 0 => A and B are identical |
1826 | 1 => A and B are incomparable | |
1827 | 2 => A is better than B | |
1828 | 3 => A is worse than B */ | |
c906108c SS |
1829 | |
1830 | int | |
fba45db2 | 1831 | compare_badness (struct badness_vector *a, struct badness_vector *b) |
c906108c SS |
1832 | { |
1833 | int i; | |
1834 | int tmp; | |
c5aa993b JM |
1835 | short found_pos = 0; /* any positives in c? */ |
1836 | short found_neg = 0; /* any negatives in c? */ | |
1837 | ||
1838 | /* differing lengths => incomparable */ | |
c906108c SS |
1839 | if (a->length != b->length) |
1840 | return 1; | |
1841 | ||
c5aa993b JM |
1842 | /* Subtract b from a */ |
1843 | for (i = 0; i < a->length; i++) | |
c906108c SS |
1844 | { |
1845 | tmp = a->rank[i] - b->rank[i]; | |
1846 | if (tmp > 0) | |
c5aa993b | 1847 | found_pos = 1; |
c906108c | 1848 | else if (tmp < 0) |
c5aa993b | 1849 | found_neg = 1; |
c906108c SS |
1850 | } |
1851 | ||
1852 | if (found_pos) | |
1853 | { | |
1854 | if (found_neg) | |
c5aa993b | 1855 | return 1; /* incomparable */ |
c906108c | 1856 | else |
c5aa993b | 1857 | return 3; /* A > B */ |
c906108c | 1858 | } |
c5aa993b JM |
1859 | else |
1860 | /* no positives */ | |
c906108c SS |
1861 | { |
1862 | if (found_neg) | |
c5aa993b | 1863 | return 2; /* A < B */ |
c906108c | 1864 | else |
c5aa993b | 1865 | return 0; /* A == B */ |
c906108c SS |
1866 | } |
1867 | } | |
1868 | ||
7ba81444 MS |
1869 | /* Rank a function by comparing its parameter types (PARMS, length |
1870 | NPARMS), to the types of an argument list (ARGS, length NARGS). | |
1871 | Return a pointer to a badness vector. This has NARGS + 1 | |
1872 | entries. */ | |
c906108c SS |
1873 | |
1874 | struct badness_vector * | |
7ba81444 MS |
1875 | rank_function (struct type **parms, int nparms, |
1876 | struct type **args, int nargs) | |
c906108c SS |
1877 | { |
1878 | int i; | |
c5aa993b | 1879 | struct badness_vector *bv; |
c906108c SS |
1880 | int min_len = nparms < nargs ? nparms : nargs; |
1881 | ||
1882 | bv = xmalloc (sizeof (struct badness_vector)); | |
c5aa993b | 1883 | bv->length = nargs + 1; /* add 1 for the length-match rank */ |
c906108c SS |
1884 | bv->rank = xmalloc ((nargs + 1) * sizeof (int)); |
1885 | ||
1886 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 1887 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 1888 | |
c906108c | 1889 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
1890 | arguments and ellipsis parameter lists, we should consider those |
1891 | and rank the length-match more finely. */ | |
c906108c SS |
1892 | |
1893 | LENGTH_MATCH (bv) = (nargs != nparms) ? LENGTH_MISMATCH_BADNESS : 0; | |
1894 | ||
1895 | /* Now rank all the parameters of the candidate function */ | |
74cc24b0 DB |
1896 | for (i = 1; i <= min_len; i++) |
1897 | bv->rank[i] = rank_one_type (parms[i-1], args[i-1]); | |
c906108c | 1898 | |
c5aa993b JM |
1899 | /* If more arguments than parameters, add dummy entries */ |
1900 | for (i = min_len + 1; i <= nargs; i++) | |
c906108c SS |
1901 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
1902 | ||
1903 | return bv; | |
1904 | } | |
1905 | ||
973ccf8b DJ |
1906 | /* Compare the names of two integer types, assuming that any sign |
1907 | qualifiers have been checked already. We do it this way because | |
1908 | there may be an "int" in the name of one of the types. */ | |
1909 | ||
1910 | static int | |
1911 | integer_types_same_name_p (const char *first, const char *second) | |
1912 | { | |
1913 | int first_p, second_p; | |
1914 | ||
7ba81444 MS |
1915 | /* If both are shorts, return 1; if neither is a short, keep |
1916 | checking. */ | |
973ccf8b DJ |
1917 | first_p = (strstr (first, "short") != NULL); |
1918 | second_p = (strstr (second, "short") != NULL); | |
1919 | if (first_p && second_p) | |
1920 | return 1; | |
1921 | if (first_p || second_p) | |
1922 | return 0; | |
1923 | ||
1924 | /* Likewise for long. */ | |
1925 | first_p = (strstr (first, "long") != NULL); | |
1926 | second_p = (strstr (second, "long") != NULL); | |
1927 | if (first_p && second_p) | |
1928 | return 1; | |
1929 | if (first_p || second_p) | |
1930 | return 0; | |
1931 | ||
1932 | /* Likewise for char. */ | |
1933 | first_p = (strstr (first, "char") != NULL); | |
1934 | second_p = (strstr (second, "char") != NULL); | |
1935 | if (first_p && second_p) | |
1936 | return 1; | |
1937 | if (first_p || second_p) | |
1938 | return 0; | |
1939 | ||
1940 | /* They must both be ints. */ | |
1941 | return 1; | |
1942 | } | |
1943 | ||
c906108c SS |
1944 | /* Compare one type (PARM) for compatibility with another (ARG). |
1945 | * PARM is intended to be the parameter type of a function; and | |
1946 | * ARG is the supplied argument's type. This function tests if | |
1947 | * the latter can be converted to the former. | |
1948 | * | |
1949 | * Return 0 if they are identical types; | |
1950 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 MS |
1951 | * PARM is to ARG. The higher the return value, the worse the match. |
1952 | * Generally the "bad" conversions are all uniformly assigned a 100. */ | |
c906108c SS |
1953 | |
1954 | int | |
fba45db2 | 1955 | rank_one_type (struct type *parm, struct type *arg) |
c906108c | 1956 | { |
7ba81444 | 1957 | /* Identical type pointers. */ |
c906108c | 1958 | /* However, this still doesn't catch all cases of same type for arg |
7ba81444 MS |
1959 | and param. The reason is that builtin types are different from |
1960 | the same ones constructed from the object. */ | |
c906108c SS |
1961 | if (parm == arg) |
1962 | return 0; | |
1963 | ||
1964 | /* Resolve typedefs */ | |
1965 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
1966 | parm = check_typedef (parm); | |
1967 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
1968 | arg = check_typedef (arg); | |
1969 | ||
070ad9f0 | 1970 | /* |
7ba81444 MS |
1971 | Well, damnit, if the names are exactly the same, I'll say they |
1972 | are exactly the same. This happens when we generate method | |
1973 | stubs. The types won't point to the same address, but they | |
070ad9f0 DB |
1974 | really are the same. |
1975 | */ | |
1976 | ||
687d6395 MS |
1977 | if (TYPE_NAME (parm) && TYPE_NAME (arg) |
1978 | && !strcmp (TYPE_NAME (parm), TYPE_NAME (arg))) | |
7ba81444 | 1979 | return 0; |
070ad9f0 | 1980 | |
7ba81444 | 1981 | /* Check if identical after resolving typedefs. */ |
c906108c SS |
1982 | if (parm == arg) |
1983 | return 0; | |
1984 | ||
db577aea | 1985 | /* See through references, since we can almost make non-references |
7ba81444 | 1986 | references. */ |
db577aea | 1987 | if (TYPE_CODE (arg) == TYPE_CODE_REF) |
6b1ba9a0 | 1988 | return (rank_one_type (parm, TYPE_TARGET_TYPE (arg)) |
db577aea AC |
1989 | + REFERENCE_CONVERSION_BADNESS); |
1990 | if (TYPE_CODE (parm) == TYPE_CODE_REF) | |
6b1ba9a0 | 1991 | return (rank_one_type (TYPE_TARGET_TYPE (parm), arg) |
db577aea | 1992 | + REFERENCE_CONVERSION_BADNESS); |
5d161b24 | 1993 | if (overload_debug) |
7ba81444 MS |
1994 | /* Debugging only. */ |
1995 | fprintf_filtered (gdb_stderr, | |
1996 | "------ Arg is %s [%d], parm is %s [%d]\n", | |
1997 | TYPE_NAME (arg), TYPE_CODE (arg), | |
1998 | TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c SS |
1999 | |
2000 | /* x -> y means arg of type x being supplied for parameter of type y */ | |
2001 | ||
2002 | switch (TYPE_CODE (parm)) | |
2003 | { | |
c5aa993b JM |
2004 | case TYPE_CODE_PTR: |
2005 | switch (TYPE_CODE (arg)) | |
2006 | { | |
2007 | case TYPE_CODE_PTR: | |
66c53f2b KS |
2008 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID |
2009 | && TYPE_CODE (TYPE_TARGET_TYPE (arg)) != TYPE_CODE_VOID) | |
c5aa993b JM |
2010 | return VOID_PTR_CONVERSION_BADNESS; |
2011 | else | |
7ba81444 MS |
2012 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
2013 | TYPE_TARGET_TYPE (arg)); | |
c5aa993b | 2014 | case TYPE_CODE_ARRAY: |
7ba81444 MS |
2015 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
2016 | TYPE_TARGET_TYPE (arg)); | |
c5aa993b JM |
2017 | case TYPE_CODE_FUNC: |
2018 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg); | |
2019 | case TYPE_CODE_INT: | |
2020 | case TYPE_CODE_ENUM: | |
4f2aea11 | 2021 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
2022 | case TYPE_CODE_CHAR: |
2023 | case TYPE_CODE_RANGE: | |
2024 | case TYPE_CODE_BOOL: | |
2025 | return POINTER_CONVERSION_BADNESS; | |
2026 | default: | |
2027 | return INCOMPATIBLE_TYPE_BADNESS; | |
2028 | } | |
2029 | case TYPE_CODE_ARRAY: | |
2030 | switch (TYPE_CODE (arg)) | |
2031 | { | |
2032 | case TYPE_CODE_PTR: | |
2033 | case TYPE_CODE_ARRAY: | |
7ba81444 MS |
2034 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
2035 | TYPE_TARGET_TYPE (arg)); | |
c5aa993b JM |
2036 | default: |
2037 | return INCOMPATIBLE_TYPE_BADNESS; | |
2038 | } | |
2039 | case TYPE_CODE_FUNC: | |
2040 | switch (TYPE_CODE (arg)) | |
2041 | { | |
2042 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
2043 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg)); | |
2044 | default: | |
2045 | return INCOMPATIBLE_TYPE_BADNESS; | |
2046 | } | |
2047 | case TYPE_CODE_INT: | |
2048 | switch (TYPE_CODE (arg)) | |
2049 | { | |
2050 | case TYPE_CODE_INT: | |
2051 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2052 | { | |
2053 | /* Deal with signed, unsigned, and plain chars and | |
7ba81444 | 2054 | signed and unsigned ints. */ |
c5aa993b JM |
2055 | if (TYPE_NOSIGN (parm)) |
2056 | { | |
2057 | /* This case only for character types */ | |
7ba81444 MS |
2058 | if (TYPE_NOSIGN (arg)) |
2059 | return 0; /* plain char -> plain char */ | |
2060 | else /* signed/unsigned char -> plain char */ | |
2061 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
2062 | } |
2063 | else if (TYPE_UNSIGNED (parm)) | |
2064 | { | |
2065 | if (TYPE_UNSIGNED (arg)) | |
2066 | { | |
7ba81444 MS |
2067 | /* unsigned int -> unsigned int, or |
2068 | unsigned long -> unsigned long */ | |
2069 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
2070 | TYPE_NAME (arg))) | |
973ccf8b | 2071 | return 0; |
7ba81444 MS |
2072 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
2073 | "int") | |
2074 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2075 | "long")) | |
c5aa993b JM |
2076 | return INTEGER_PROMOTION_BADNESS; /* unsigned int -> unsigned long */ |
2077 | else | |
1c5cb38e | 2078 | return INTEGER_CONVERSION_BADNESS; /* unsigned long -> unsigned int */ |
c5aa993b JM |
2079 | } |
2080 | else | |
2081 | { | |
7ba81444 MS |
2082 | if (integer_types_same_name_p (TYPE_NAME (arg), |
2083 | "long") | |
2084 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2085 | "int")) | |
1c5cb38e | 2086 | return INTEGER_CONVERSION_BADNESS; /* signed long -> unsigned int */ |
c5aa993b JM |
2087 | else |
2088 | return INTEGER_CONVERSION_BADNESS; /* signed int/long -> unsigned int/long */ | |
2089 | } | |
2090 | } | |
2091 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2092 | { | |
7ba81444 MS |
2093 | if (integer_types_same_name_p (TYPE_NAME (parm), |
2094 | TYPE_NAME (arg))) | |
c5aa993b | 2095 | return 0; |
7ba81444 MS |
2096 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
2097 | "int") | |
2098 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2099 | "long")) | |
c5aa993b JM |
2100 | return INTEGER_PROMOTION_BADNESS; |
2101 | else | |
1c5cb38e | 2102 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2103 | } |
2104 | else | |
1c5cb38e | 2105 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2106 | } |
2107 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2108 | return INTEGER_PROMOTION_BADNESS; | |
2109 | else | |
1c5cb38e | 2110 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b | 2111 | case TYPE_CODE_ENUM: |
4f2aea11 | 2112 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
2113 | case TYPE_CODE_CHAR: |
2114 | case TYPE_CODE_RANGE: | |
2115 | case TYPE_CODE_BOOL: | |
2116 | return INTEGER_PROMOTION_BADNESS; | |
2117 | case TYPE_CODE_FLT: | |
2118 | return INT_FLOAT_CONVERSION_BADNESS; | |
2119 | case TYPE_CODE_PTR: | |
2120 | return NS_POINTER_CONVERSION_BADNESS; | |
2121 | default: | |
2122 | return INCOMPATIBLE_TYPE_BADNESS; | |
2123 | } | |
2124 | break; | |
2125 | case TYPE_CODE_ENUM: | |
2126 | switch (TYPE_CODE (arg)) | |
2127 | { | |
2128 | case TYPE_CODE_INT: | |
2129 | case TYPE_CODE_CHAR: | |
2130 | case TYPE_CODE_RANGE: | |
2131 | case TYPE_CODE_BOOL: | |
2132 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2133 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2134 | case TYPE_CODE_FLT: |
2135 | return INT_FLOAT_CONVERSION_BADNESS; | |
2136 | default: | |
2137 | return INCOMPATIBLE_TYPE_BADNESS; | |
2138 | } | |
2139 | break; | |
2140 | case TYPE_CODE_CHAR: | |
2141 | switch (TYPE_CODE (arg)) | |
2142 | { | |
2143 | case TYPE_CODE_RANGE: | |
2144 | case TYPE_CODE_BOOL: | |
2145 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2146 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2147 | case TYPE_CODE_FLT: |
2148 | return INT_FLOAT_CONVERSION_BADNESS; | |
2149 | case TYPE_CODE_INT: | |
2150 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
1c5cb38e | 2151 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2152 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) |
2153 | return INTEGER_PROMOTION_BADNESS; | |
2154 | /* >>> !! else fall through !! <<< */ | |
2155 | case TYPE_CODE_CHAR: | |
7ba81444 MS |
2156 | /* Deal with signed, unsigned, and plain chars for C++ and |
2157 | with int cases falling through from previous case. */ | |
c5aa993b JM |
2158 | if (TYPE_NOSIGN (parm)) |
2159 | { | |
2160 | if (TYPE_NOSIGN (arg)) | |
2161 | return 0; | |
2162 | else | |
1c5cb38e | 2163 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2164 | } |
2165 | else if (TYPE_UNSIGNED (parm)) | |
2166 | { | |
2167 | if (TYPE_UNSIGNED (arg)) | |
2168 | return 0; | |
2169 | else | |
2170 | return INTEGER_PROMOTION_BADNESS; | |
2171 | } | |
2172 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2173 | return 0; | |
2174 | else | |
1c5cb38e | 2175 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2176 | default: |
2177 | return INCOMPATIBLE_TYPE_BADNESS; | |
2178 | } | |
2179 | break; | |
2180 | case TYPE_CODE_RANGE: | |
2181 | switch (TYPE_CODE (arg)) | |
2182 | { | |
2183 | case TYPE_CODE_INT: | |
2184 | case TYPE_CODE_CHAR: | |
2185 | case TYPE_CODE_RANGE: | |
2186 | case TYPE_CODE_BOOL: | |
2187 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2188 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2189 | case TYPE_CODE_FLT: |
2190 | return INT_FLOAT_CONVERSION_BADNESS; | |
2191 | default: | |
2192 | return INCOMPATIBLE_TYPE_BADNESS; | |
2193 | } | |
2194 | break; | |
2195 | case TYPE_CODE_BOOL: | |
2196 | switch (TYPE_CODE (arg)) | |
2197 | { | |
2198 | case TYPE_CODE_INT: | |
2199 | case TYPE_CODE_CHAR: | |
2200 | case TYPE_CODE_RANGE: | |
2201 | case TYPE_CODE_ENUM: | |
2202 | case TYPE_CODE_FLT: | |
2203 | case TYPE_CODE_PTR: | |
2204 | return BOOLEAN_CONVERSION_BADNESS; | |
2205 | case TYPE_CODE_BOOL: | |
2206 | return 0; | |
2207 | default: | |
2208 | return INCOMPATIBLE_TYPE_BADNESS; | |
2209 | } | |
2210 | break; | |
2211 | case TYPE_CODE_FLT: | |
2212 | switch (TYPE_CODE (arg)) | |
2213 | { | |
2214 | case TYPE_CODE_FLT: | |
2215 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2216 | return FLOAT_PROMOTION_BADNESS; | |
2217 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2218 | return 0; | |
2219 | else | |
2220 | return FLOAT_CONVERSION_BADNESS; | |
2221 | case TYPE_CODE_INT: | |
2222 | case TYPE_CODE_BOOL: | |
2223 | case TYPE_CODE_ENUM: | |
2224 | case TYPE_CODE_RANGE: | |
2225 | case TYPE_CODE_CHAR: | |
2226 | return INT_FLOAT_CONVERSION_BADNESS; | |
2227 | default: | |
2228 | return INCOMPATIBLE_TYPE_BADNESS; | |
2229 | } | |
2230 | break; | |
2231 | case TYPE_CODE_COMPLEX: | |
2232 | switch (TYPE_CODE (arg)) | |
7ba81444 | 2233 | { /* Strictly not needed for C++, but... */ |
c5aa993b JM |
2234 | case TYPE_CODE_FLT: |
2235 | return FLOAT_PROMOTION_BADNESS; | |
2236 | case TYPE_CODE_COMPLEX: | |
2237 | return 0; | |
2238 | default: | |
2239 | return INCOMPATIBLE_TYPE_BADNESS; | |
2240 | } | |
2241 | break; | |
2242 | case TYPE_CODE_STRUCT: | |
c906108c | 2243 | /* currently same as TYPE_CODE_CLASS */ |
c5aa993b JM |
2244 | switch (TYPE_CODE (arg)) |
2245 | { | |
2246 | case TYPE_CODE_STRUCT: | |
2247 | /* Check for derivation */ | |
2248 | if (is_ancestor (parm, arg)) | |
2249 | return BASE_CONVERSION_BADNESS; | |
2250 | /* else fall through */ | |
2251 | default: | |
2252 | return INCOMPATIBLE_TYPE_BADNESS; | |
2253 | } | |
2254 | break; | |
2255 | case TYPE_CODE_UNION: | |
2256 | switch (TYPE_CODE (arg)) | |
2257 | { | |
2258 | case TYPE_CODE_UNION: | |
2259 | default: | |
2260 | return INCOMPATIBLE_TYPE_BADNESS; | |
2261 | } | |
2262 | break; | |
0d5de010 | 2263 | case TYPE_CODE_MEMBERPTR: |
c5aa993b JM |
2264 | switch (TYPE_CODE (arg)) |
2265 | { | |
2266 | default: | |
2267 | return INCOMPATIBLE_TYPE_BADNESS; | |
2268 | } | |
2269 | break; | |
2270 | case TYPE_CODE_METHOD: | |
2271 | switch (TYPE_CODE (arg)) | |
2272 | { | |
2273 | ||
2274 | default: | |
2275 | return INCOMPATIBLE_TYPE_BADNESS; | |
2276 | } | |
2277 | break; | |
2278 | case TYPE_CODE_REF: | |
2279 | switch (TYPE_CODE (arg)) | |
2280 | { | |
2281 | ||
2282 | default: | |
2283 | return INCOMPATIBLE_TYPE_BADNESS; | |
2284 | } | |
2285 | ||
2286 | break; | |
2287 | case TYPE_CODE_SET: | |
2288 | switch (TYPE_CODE (arg)) | |
2289 | { | |
2290 | /* Not in C++ */ | |
2291 | case TYPE_CODE_SET: | |
7ba81444 MS |
2292 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), |
2293 | TYPE_FIELD_TYPE (arg, 0)); | |
c5aa993b JM |
2294 | default: |
2295 | return INCOMPATIBLE_TYPE_BADNESS; | |
2296 | } | |
2297 | break; | |
2298 | case TYPE_CODE_VOID: | |
2299 | default: | |
2300 | return INCOMPATIBLE_TYPE_BADNESS; | |
2301 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
2302 | } |
2303 | ||
c5aa993b JM |
2304 | |
2305 | /* End of functions for overload resolution */ | |
c906108c | 2306 | |
c906108c | 2307 | static void |
fba45db2 | 2308 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
2309 | { |
2310 | int bitno; | |
2311 | ||
2312 | for (bitno = 0; bitno < nbits; bitno++) | |
2313 | { | |
2314 | if ((bitno % 8) == 0) | |
2315 | { | |
2316 | puts_filtered (" "); | |
2317 | } | |
2318 | if (B_TST (bits, bitno)) | |
a3f17187 | 2319 | printf_filtered (("1")); |
c906108c | 2320 | else |
a3f17187 | 2321 | printf_filtered (("0")); |
c906108c SS |
2322 | } |
2323 | } | |
2324 | ||
ad2f7632 | 2325 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
2326 | include it since we may get into a infinitely recursive |
2327 | situation. */ | |
c906108c SS |
2328 | |
2329 | static void | |
ad2f7632 | 2330 | print_arg_types (struct field *args, int nargs, int spaces) |
c906108c SS |
2331 | { |
2332 | if (args != NULL) | |
2333 | { | |
ad2f7632 DJ |
2334 | int i; |
2335 | ||
2336 | for (i = 0; i < nargs; i++) | |
2337 | recursive_dump_type (args[i].type, spaces + 2); | |
c906108c SS |
2338 | } |
2339 | } | |
2340 | ||
d6a843b5 JK |
2341 | int |
2342 | field_is_static (struct field *f) | |
2343 | { | |
2344 | /* "static" fields are the fields whose location is not relative | |
2345 | to the address of the enclosing struct. It would be nice to | |
2346 | have a dedicated flag that would be set for static fields when | |
2347 | the type is being created. But in practice, checking the field | |
2348 | loc_kind should give us an accurate answer (at least as long as | |
2349 | we assume that DWARF block locations are not going to be used | |
2350 | for static fields). FIXME? */ | |
2351 | return (FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSNAME | |
2352 | || FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSADDR); | |
2353 | } | |
2354 | ||
c906108c | 2355 | static void |
fba45db2 | 2356 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
2357 | { |
2358 | int method_idx; | |
2359 | int overload_idx; | |
2360 | struct fn_field *f; | |
2361 | ||
2362 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 2363 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
2364 | printf_filtered ("\n"); |
2365 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
2366 | { | |
2367 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
2368 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
2369 | method_idx, | |
2370 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
2371 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
2372 | gdb_stdout); | |
a3f17187 | 2373 | printf_filtered (_(") length %d\n"), |
c906108c SS |
2374 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
2375 | for (overload_idx = 0; | |
2376 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
2377 | overload_idx++) | |
2378 | { | |
2379 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
2380 | overload_idx, | |
2381 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
2382 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
2383 | gdb_stdout); | |
c906108c SS |
2384 | printf_filtered (")\n"); |
2385 | printfi_filtered (spaces + 8, "type "); | |
7ba81444 MS |
2386 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
2387 | gdb_stdout); | |
c906108c SS |
2388 | printf_filtered ("\n"); |
2389 | ||
2390 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
2391 | spaces + 8 + 2); | |
2392 | ||
2393 | printfi_filtered (spaces + 8, "args "); | |
7ba81444 MS |
2394 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
2395 | gdb_stdout); | |
c906108c SS |
2396 | printf_filtered ("\n"); |
2397 | ||
ad2f7632 | 2398 | print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), |
7ba81444 MS |
2399 | TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, |
2400 | overload_idx)), | |
ad2f7632 | 2401 | spaces); |
c906108c | 2402 | printfi_filtered (spaces + 8, "fcontext "); |
d4f3574e SS |
2403 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
2404 | gdb_stdout); | |
c906108c SS |
2405 | printf_filtered ("\n"); |
2406 | ||
2407 | printfi_filtered (spaces + 8, "is_const %d\n", | |
2408 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
2409 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
2410 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
2411 | printfi_filtered (spaces + 8, "is_private %d\n", | |
2412 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
2413 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
2414 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
2415 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
2416 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
2417 | printfi_filtered (spaces + 8, "voffset %u\n", | |
2418 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
2419 | } | |
2420 | } | |
2421 | } | |
2422 | ||
2423 | static void | |
fba45db2 | 2424 | print_cplus_stuff (struct type *type, int spaces) |
c906108c SS |
2425 | { |
2426 | printfi_filtered (spaces, "n_baseclasses %d\n", | |
2427 | TYPE_N_BASECLASSES (type)); | |
2428 | printfi_filtered (spaces, "nfn_fields %d\n", | |
2429 | TYPE_NFN_FIELDS (type)); | |
2430 | printfi_filtered (spaces, "nfn_fields_total %d\n", | |
2431 | TYPE_NFN_FIELDS_TOTAL (type)); | |
2432 | if (TYPE_N_BASECLASSES (type) > 0) | |
2433 | { | |
2434 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
2435 | TYPE_N_BASECLASSES (type)); | |
7ba81444 MS |
2436 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
2437 | gdb_stdout); | |
c906108c SS |
2438 | printf_filtered (")"); |
2439 | ||
2440 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
2441 | TYPE_N_BASECLASSES (type)); | |
2442 | puts_filtered ("\n"); | |
2443 | } | |
2444 | if (TYPE_NFIELDS (type) > 0) | |
2445 | { | |
2446 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
2447 | { | |
7ba81444 MS |
2448 | printfi_filtered (spaces, |
2449 | "private_field_bits (%d bits at *", | |
c906108c | 2450 | TYPE_NFIELDS (type)); |
7ba81444 MS |
2451 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
2452 | gdb_stdout); | |
c906108c SS |
2453 | printf_filtered (")"); |
2454 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
2455 | TYPE_NFIELDS (type)); | |
2456 | puts_filtered ("\n"); | |
2457 | } | |
2458 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
2459 | { | |
7ba81444 MS |
2460 | printfi_filtered (spaces, |
2461 | "protected_field_bits (%d bits at *", | |
c906108c | 2462 | TYPE_NFIELDS (type)); |
7ba81444 MS |
2463 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
2464 | gdb_stdout); | |
c906108c SS |
2465 | printf_filtered (")"); |
2466 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
2467 | TYPE_NFIELDS (type)); | |
2468 | puts_filtered ("\n"); | |
2469 | } | |
2470 | } | |
2471 | if (TYPE_NFN_FIELDS (type) > 0) | |
2472 | { | |
2473 | dump_fn_fieldlists (type, spaces); | |
2474 | } | |
2475 | } | |
2476 | ||
2477 | static struct obstack dont_print_type_obstack; | |
2478 | ||
2479 | void | |
fba45db2 | 2480 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
2481 | { |
2482 | int idx; | |
2483 | ||
2484 | if (spaces == 0) | |
2485 | obstack_begin (&dont_print_type_obstack, 0); | |
2486 | ||
2487 | if (TYPE_NFIELDS (type) > 0 | |
2488 | || (TYPE_CPLUS_SPECIFIC (type) && TYPE_NFN_FIELDS (type) > 0)) | |
2489 | { | |
2490 | struct type **first_dont_print | |
7ba81444 | 2491 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 2492 | |
7ba81444 MS |
2493 | int i = (struct type **) |
2494 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
2495 | |
2496 | while (--i >= 0) | |
2497 | { | |
2498 | if (type == first_dont_print[i]) | |
2499 | { | |
2500 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 2501 | gdb_print_host_address (type, gdb_stdout); |
a3f17187 | 2502 | printf_filtered (_(" <same as already seen type>\n")); |
c906108c SS |
2503 | return; |
2504 | } | |
2505 | } | |
2506 | ||
2507 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
2508 | } | |
2509 | ||
2510 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 2511 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
2512 | printf_filtered ("\n"); |
2513 | printfi_filtered (spaces, "name '%s' (", | |
2514 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 2515 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c | 2516 | printf_filtered (")\n"); |
e9e79dd9 FF |
2517 | printfi_filtered (spaces, "tagname '%s' (", |
2518 | TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>"); | |
2519 | gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); | |
2520 | printf_filtered (")\n"); | |
c906108c SS |
2521 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
2522 | switch (TYPE_CODE (type)) | |
2523 | { | |
c5aa993b JM |
2524 | case TYPE_CODE_UNDEF: |
2525 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
2526 | break; | |
2527 | case TYPE_CODE_PTR: | |
2528 | printf_filtered ("(TYPE_CODE_PTR)"); | |
2529 | break; | |
2530 | case TYPE_CODE_ARRAY: | |
2531 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
2532 | break; | |
2533 | case TYPE_CODE_STRUCT: | |
2534 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
2535 | break; | |
2536 | case TYPE_CODE_UNION: | |
2537 | printf_filtered ("(TYPE_CODE_UNION)"); | |
2538 | break; | |
2539 | case TYPE_CODE_ENUM: | |
2540 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
2541 | break; | |
4f2aea11 MK |
2542 | case TYPE_CODE_FLAGS: |
2543 | printf_filtered ("(TYPE_CODE_FLAGS)"); | |
2544 | break; | |
c5aa993b JM |
2545 | case TYPE_CODE_FUNC: |
2546 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
2547 | break; | |
2548 | case TYPE_CODE_INT: | |
2549 | printf_filtered ("(TYPE_CODE_INT)"); | |
2550 | break; | |
2551 | case TYPE_CODE_FLT: | |
2552 | printf_filtered ("(TYPE_CODE_FLT)"); | |
2553 | break; | |
2554 | case TYPE_CODE_VOID: | |
2555 | printf_filtered ("(TYPE_CODE_VOID)"); | |
2556 | break; | |
2557 | case TYPE_CODE_SET: | |
2558 | printf_filtered ("(TYPE_CODE_SET)"); | |
2559 | break; | |
2560 | case TYPE_CODE_RANGE: | |
2561 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
2562 | break; | |
2563 | case TYPE_CODE_STRING: | |
2564 | printf_filtered ("(TYPE_CODE_STRING)"); | |
2565 | break; | |
e9e79dd9 FF |
2566 | case TYPE_CODE_BITSTRING: |
2567 | printf_filtered ("(TYPE_CODE_BITSTRING)"); | |
2568 | break; | |
c5aa993b JM |
2569 | case TYPE_CODE_ERROR: |
2570 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
2571 | break; | |
0d5de010 DJ |
2572 | case TYPE_CODE_MEMBERPTR: |
2573 | printf_filtered ("(TYPE_CODE_MEMBERPTR)"); | |
2574 | break; | |
2575 | case TYPE_CODE_METHODPTR: | |
2576 | printf_filtered ("(TYPE_CODE_METHODPTR)"); | |
c5aa993b JM |
2577 | break; |
2578 | case TYPE_CODE_METHOD: | |
2579 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
2580 | break; | |
2581 | case TYPE_CODE_REF: | |
2582 | printf_filtered ("(TYPE_CODE_REF)"); | |
2583 | break; | |
2584 | case TYPE_CODE_CHAR: | |
2585 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
2586 | break; | |
2587 | case TYPE_CODE_BOOL: | |
2588 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
2589 | break; | |
e9e79dd9 FF |
2590 | case TYPE_CODE_COMPLEX: |
2591 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
2592 | break; | |
c5aa993b JM |
2593 | case TYPE_CODE_TYPEDEF: |
2594 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
2595 | break; | |
e9e79dd9 FF |
2596 | case TYPE_CODE_TEMPLATE: |
2597 | printf_filtered ("(TYPE_CODE_TEMPLATE)"); | |
2598 | break; | |
2599 | case TYPE_CODE_TEMPLATE_ARG: | |
2600 | printf_filtered ("(TYPE_CODE_TEMPLATE_ARG)"); | |
2601 | break; | |
5c4e30ca DC |
2602 | case TYPE_CODE_NAMESPACE: |
2603 | printf_filtered ("(TYPE_CODE_NAMESPACE)"); | |
2604 | break; | |
c5aa993b JM |
2605 | default: |
2606 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
2607 | break; | |
c906108c SS |
2608 | } |
2609 | puts_filtered ("\n"); | |
2610 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
e9bb382b UW |
2611 | if (TYPE_OBJFILE_OWNED (type)) |
2612 | { | |
2613 | printfi_filtered (spaces, "objfile "); | |
2614 | gdb_print_host_address (TYPE_OWNER (type).objfile, gdb_stdout); | |
2615 | } | |
2616 | else | |
2617 | { | |
2618 | printfi_filtered (spaces, "gdbarch "); | |
2619 | gdb_print_host_address (TYPE_OWNER (type).gdbarch, gdb_stdout); | |
2620 | } | |
c906108c SS |
2621 | printf_filtered ("\n"); |
2622 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 2623 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
2624 | printf_filtered ("\n"); |
2625 | if (TYPE_TARGET_TYPE (type) != NULL) | |
2626 | { | |
2627 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
2628 | } | |
2629 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 2630 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
2631 | printf_filtered ("\n"); |
2632 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 2633 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 2634 | printf_filtered ("\n"); |
2fdde8f8 DJ |
2635 | printfi_filtered (spaces, "type_chain "); |
2636 | gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); | |
e9e79dd9 | 2637 | printf_filtered ("\n"); |
7ba81444 MS |
2638 | printfi_filtered (spaces, "instance_flags 0x%x", |
2639 | TYPE_INSTANCE_FLAGS (type)); | |
2fdde8f8 DJ |
2640 | if (TYPE_CONST (type)) |
2641 | { | |
2642 | puts_filtered (" TYPE_FLAG_CONST"); | |
2643 | } | |
2644 | if (TYPE_VOLATILE (type)) | |
2645 | { | |
2646 | puts_filtered (" TYPE_FLAG_VOLATILE"); | |
2647 | } | |
2648 | if (TYPE_CODE_SPACE (type)) | |
2649 | { | |
2650 | puts_filtered (" TYPE_FLAG_CODE_SPACE"); | |
2651 | } | |
2652 | if (TYPE_DATA_SPACE (type)) | |
2653 | { | |
2654 | puts_filtered (" TYPE_FLAG_DATA_SPACE"); | |
2655 | } | |
8b2dbe47 KB |
2656 | if (TYPE_ADDRESS_CLASS_1 (type)) |
2657 | { | |
2658 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_1"); | |
2659 | } | |
2660 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
2661 | { | |
2662 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_2"); | |
2663 | } | |
2fdde8f8 | 2664 | puts_filtered ("\n"); |
876cecd0 TT |
2665 | |
2666 | printfi_filtered (spaces, "flags"); | |
762a036f | 2667 | if (TYPE_UNSIGNED (type)) |
c906108c SS |
2668 | { |
2669 | puts_filtered (" TYPE_FLAG_UNSIGNED"); | |
2670 | } | |
762a036f FF |
2671 | if (TYPE_NOSIGN (type)) |
2672 | { | |
2673 | puts_filtered (" TYPE_FLAG_NOSIGN"); | |
2674 | } | |
2675 | if (TYPE_STUB (type)) | |
c906108c SS |
2676 | { |
2677 | puts_filtered (" TYPE_FLAG_STUB"); | |
2678 | } | |
762a036f FF |
2679 | if (TYPE_TARGET_STUB (type)) |
2680 | { | |
2681 | puts_filtered (" TYPE_FLAG_TARGET_STUB"); | |
2682 | } | |
2683 | if (TYPE_STATIC (type)) | |
2684 | { | |
2685 | puts_filtered (" TYPE_FLAG_STATIC"); | |
2686 | } | |
762a036f FF |
2687 | if (TYPE_PROTOTYPED (type)) |
2688 | { | |
2689 | puts_filtered (" TYPE_FLAG_PROTOTYPED"); | |
2690 | } | |
2691 | if (TYPE_INCOMPLETE (type)) | |
2692 | { | |
2693 | puts_filtered (" TYPE_FLAG_INCOMPLETE"); | |
2694 | } | |
762a036f FF |
2695 | if (TYPE_VARARGS (type)) |
2696 | { | |
2697 | puts_filtered (" TYPE_FLAG_VARARGS"); | |
2698 | } | |
f5f8a009 EZ |
2699 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
2700 | an attribute for the array type, which tells whether or not we | |
2701 | have a vector, instead of a regular array. */ | |
2702 | if (TYPE_VECTOR (type)) | |
2703 | { | |
2704 | puts_filtered (" TYPE_FLAG_VECTOR"); | |
2705 | } | |
876cecd0 TT |
2706 | if (TYPE_FIXED_INSTANCE (type)) |
2707 | { | |
2708 | puts_filtered (" TYPE_FIXED_INSTANCE"); | |
2709 | } | |
2710 | if (TYPE_STUB_SUPPORTED (type)) | |
2711 | { | |
2712 | puts_filtered (" TYPE_STUB_SUPPORTED"); | |
2713 | } | |
2714 | if (TYPE_NOTTEXT (type)) | |
2715 | { | |
2716 | puts_filtered (" TYPE_NOTTEXT"); | |
2717 | } | |
c906108c SS |
2718 | puts_filtered ("\n"); |
2719 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 2720 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
2721 | puts_filtered ("\n"); |
2722 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
2723 | { | |
2724 | printfi_filtered (spaces + 2, | |
2725 | "[%d] bitpos %d bitsize %d type ", | |
2726 | idx, TYPE_FIELD_BITPOS (type, idx), | |
2727 | TYPE_FIELD_BITSIZE (type, idx)); | |
d4f3574e | 2728 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
2729 | printf_filtered (" name '%s' (", |
2730 | TYPE_FIELD_NAME (type, idx) != NULL | |
2731 | ? TYPE_FIELD_NAME (type, idx) | |
2732 | : "<NULL>"); | |
d4f3574e | 2733 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
2734 | printf_filtered (")\n"); |
2735 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
2736 | { | |
2737 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
2738 | } | |
2739 | } | |
2740 | printfi_filtered (spaces, "vptr_basetype "); | |
d4f3574e | 2741 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); |
c906108c SS |
2742 | puts_filtered ("\n"); |
2743 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
2744 | { | |
2745 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
2746 | } | |
7ba81444 MS |
2747 | printfi_filtered (spaces, "vptr_fieldno %d\n", |
2748 | TYPE_VPTR_FIELDNO (type)); | |
c906108c SS |
2749 | switch (TYPE_CODE (type)) |
2750 | { | |
c5aa993b JM |
2751 | case TYPE_CODE_STRUCT: |
2752 | printfi_filtered (spaces, "cplus_stuff "); | |
7ba81444 MS |
2753 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), |
2754 | gdb_stdout); | |
c5aa993b JM |
2755 | puts_filtered ("\n"); |
2756 | print_cplus_stuff (type, spaces); | |
2757 | break; | |
c906108c | 2758 | |
701c159d AC |
2759 | case TYPE_CODE_FLT: |
2760 | printfi_filtered (spaces, "floatformat "); | |
8da61cc4 | 2761 | if (TYPE_FLOATFORMAT (type) == NULL) |
701c159d AC |
2762 | puts_filtered ("(null)"); |
2763 | else | |
8da61cc4 DJ |
2764 | { |
2765 | puts_filtered ("{ "); | |
2766 | if (TYPE_FLOATFORMAT (type)[0] == NULL | |
2767 | || TYPE_FLOATFORMAT (type)[0]->name == NULL) | |
2768 | puts_filtered ("(null)"); | |
2769 | else | |
2770 | puts_filtered (TYPE_FLOATFORMAT (type)[0]->name); | |
2771 | ||
2772 | puts_filtered (", "); | |
2773 | if (TYPE_FLOATFORMAT (type)[1] == NULL | |
2774 | || TYPE_FLOATFORMAT (type)[1]->name == NULL) | |
2775 | puts_filtered ("(null)"); | |
2776 | else | |
2777 | puts_filtered (TYPE_FLOATFORMAT (type)[1]->name); | |
2778 | ||
2779 | puts_filtered (" }"); | |
2780 | } | |
701c159d AC |
2781 | puts_filtered ("\n"); |
2782 | break; | |
2783 | ||
c5aa993b | 2784 | default: |
7ba81444 MS |
2785 | /* We have to pick one of the union types to be able print and |
2786 | test the value. Pick cplus_struct_type, even though we know | |
2787 | it isn't any particular one. */ | |
c5aa993b | 2788 | printfi_filtered (spaces, "type_specific "); |
d4f3574e | 2789 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), gdb_stdout); |
c5aa993b JM |
2790 | if (TYPE_CPLUS_SPECIFIC (type) != NULL) |
2791 | { | |
a3f17187 | 2792 | printf_filtered (_(" (unknown data form)")); |
c5aa993b JM |
2793 | } |
2794 | printf_filtered ("\n"); | |
2795 | break; | |
c906108c SS |
2796 | |
2797 | } | |
2798 | if (spaces == 0) | |
2799 | obstack_free (&dont_print_type_obstack, NULL); | |
2800 | } | |
2801 | ||
ae5a43e0 DJ |
2802 | /* Trivial helpers for the libiberty hash table, for mapping one |
2803 | type to another. */ | |
2804 | ||
2805 | struct type_pair | |
2806 | { | |
2807 | struct type *old, *new; | |
2808 | }; | |
2809 | ||
2810 | static hashval_t | |
2811 | type_pair_hash (const void *item) | |
2812 | { | |
2813 | const struct type_pair *pair = item; | |
2814 | return htab_hash_pointer (pair->old); | |
2815 | } | |
2816 | ||
2817 | static int | |
2818 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
2819 | { | |
2820 | const struct type_pair *lhs = item_lhs, *rhs = item_rhs; | |
2821 | return lhs->old == rhs->old; | |
2822 | } | |
2823 | ||
2824 | /* Allocate the hash table used by copy_type_recursive to walk | |
2825 | types without duplicates. We use OBJFILE's obstack, because | |
2826 | OBJFILE is about to be deleted. */ | |
2827 | ||
2828 | htab_t | |
2829 | create_copied_types_hash (struct objfile *objfile) | |
2830 | { | |
2831 | return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, | |
2832 | NULL, &objfile->objfile_obstack, | |
2833 | hashtab_obstack_allocate, | |
2834 | dummy_obstack_deallocate); | |
2835 | } | |
2836 | ||
7ba81444 MS |
2837 | /* Recursively copy (deep copy) TYPE, if it is associated with |
2838 | OBJFILE. Return a new type allocated using malloc, a saved type if | |
2839 | we have already visited TYPE (using COPIED_TYPES), or TYPE if it is | |
2840 | not associated with OBJFILE. */ | |
ae5a43e0 DJ |
2841 | |
2842 | struct type * | |
7ba81444 MS |
2843 | copy_type_recursive (struct objfile *objfile, |
2844 | struct type *type, | |
ae5a43e0 DJ |
2845 | htab_t copied_types) |
2846 | { | |
2847 | struct type_pair *stored, pair; | |
2848 | void **slot; | |
2849 | struct type *new_type; | |
2850 | ||
e9bb382b | 2851 | if (! TYPE_OBJFILE_OWNED (type)) |
ae5a43e0 DJ |
2852 | return type; |
2853 | ||
7ba81444 MS |
2854 | /* This type shouldn't be pointing to any types in other objfiles; |
2855 | if it did, the type might disappear unexpectedly. */ | |
ae5a43e0 DJ |
2856 | gdb_assert (TYPE_OBJFILE (type) == objfile); |
2857 | ||
2858 | pair.old = type; | |
2859 | slot = htab_find_slot (copied_types, &pair, INSERT); | |
2860 | if (*slot != NULL) | |
2861 | return ((struct type_pair *) *slot)->new; | |
2862 | ||
e9bb382b | 2863 | new_type = alloc_type_arch (get_type_arch (type)); |
ae5a43e0 DJ |
2864 | |
2865 | /* We must add the new type to the hash table immediately, in case | |
2866 | we encounter this type again during a recursive call below. */ | |
d87ecdfb | 2867 | stored = obstack_alloc (&objfile->objfile_obstack, sizeof (struct type_pair)); |
ae5a43e0 DJ |
2868 | stored->old = type; |
2869 | stored->new = new_type; | |
2870 | *slot = stored; | |
2871 | ||
876cecd0 TT |
2872 | /* Copy the common fields of types. For the main type, we simply |
2873 | copy the entire thing and then update specific fields as needed. */ | |
2874 | *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type); | |
e9bb382b UW |
2875 | TYPE_OBJFILE_OWNED (new_type) = 0; |
2876 | TYPE_OWNER (new_type).gdbarch = get_type_arch (type); | |
876cecd0 | 2877 | |
ae5a43e0 DJ |
2878 | if (TYPE_NAME (type)) |
2879 | TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type)); | |
2880 | if (TYPE_TAG_NAME (type)) | |
2881 | TYPE_TAG_NAME (new_type) = xstrdup (TYPE_TAG_NAME (type)); | |
ae5a43e0 DJ |
2882 | |
2883 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); | |
2884 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
2885 | ||
2886 | /* Copy the fields. */ | |
ae5a43e0 DJ |
2887 | if (TYPE_NFIELDS (type)) |
2888 | { | |
2889 | int i, nfields; | |
2890 | ||
2891 | nfields = TYPE_NFIELDS (type); | |
1deafd4e | 2892 | TYPE_FIELDS (new_type) = XCALLOC (nfields, struct field); |
ae5a43e0 DJ |
2893 | for (i = 0; i < nfields; i++) |
2894 | { | |
7ba81444 MS |
2895 | TYPE_FIELD_ARTIFICIAL (new_type, i) = |
2896 | TYPE_FIELD_ARTIFICIAL (type, i); | |
ae5a43e0 DJ |
2897 | TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
2898 | if (TYPE_FIELD_TYPE (type, i)) | |
2899 | TYPE_FIELD_TYPE (new_type, i) | |
2900 | = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i), | |
2901 | copied_types); | |
2902 | if (TYPE_FIELD_NAME (type, i)) | |
7ba81444 MS |
2903 | TYPE_FIELD_NAME (new_type, i) = |
2904 | xstrdup (TYPE_FIELD_NAME (type, i)); | |
d6a843b5 | 2905 | switch (TYPE_FIELD_LOC_KIND (type, i)) |
ae5a43e0 | 2906 | { |
d6a843b5 JK |
2907 | case FIELD_LOC_KIND_BITPOS: |
2908 | SET_FIELD_BITPOS (TYPE_FIELD (new_type, i), | |
2909 | TYPE_FIELD_BITPOS (type, i)); | |
2910 | break; | |
2911 | case FIELD_LOC_KIND_PHYSADDR: | |
2912 | SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i), | |
2913 | TYPE_FIELD_STATIC_PHYSADDR (type, i)); | |
2914 | break; | |
2915 | case FIELD_LOC_KIND_PHYSNAME: | |
2916 | SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i), | |
2917 | xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, | |
2918 | i))); | |
2919 | break; | |
2920 | default: | |
2921 | internal_error (__FILE__, __LINE__, | |
2922 | _("Unexpected type field location kind: %d"), | |
2923 | TYPE_FIELD_LOC_KIND (type, i)); | |
ae5a43e0 DJ |
2924 | } |
2925 | } | |
2926 | } | |
2927 | ||
2928 | /* Copy pointers to other types. */ | |
2929 | if (TYPE_TARGET_TYPE (type)) | |
7ba81444 MS |
2930 | TYPE_TARGET_TYPE (new_type) = |
2931 | copy_type_recursive (objfile, | |
2932 | TYPE_TARGET_TYPE (type), | |
2933 | copied_types); | |
ae5a43e0 | 2934 | if (TYPE_VPTR_BASETYPE (type)) |
7ba81444 MS |
2935 | TYPE_VPTR_BASETYPE (new_type) = |
2936 | copy_type_recursive (objfile, | |
2937 | TYPE_VPTR_BASETYPE (type), | |
2938 | copied_types); | |
ae5a43e0 DJ |
2939 | /* Maybe copy the type_specific bits. |
2940 | ||
2941 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
2942 | base classes and methods. There's no fundamental reason why we | |
2943 | can't, but at the moment it is not needed. */ | |
2944 | ||
2945 | if (TYPE_CODE (type) == TYPE_CODE_FLT) | |
d5d6fca5 | 2946 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); |
ae5a43e0 DJ |
2947 | else if (TYPE_CODE (type) == TYPE_CODE_STRUCT |
2948 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
2949 | || TYPE_CODE (type) == TYPE_CODE_TEMPLATE | |
2950 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) | |
2951 | INIT_CPLUS_SPECIFIC (new_type); | |
2952 | ||
2953 | return new_type; | |
2954 | } | |
2955 | ||
4af88198 JB |
2956 | /* Make a copy of the given TYPE, except that the pointer & reference |
2957 | types are not preserved. | |
2958 | ||
2959 | This function assumes that the given type has an associated objfile. | |
2960 | This objfile is used to allocate the new type. */ | |
2961 | ||
2962 | struct type * | |
2963 | copy_type (const struct type *type) | |
2964 | { | |
2965 | struct type *new_type; | |
2966 | ||
e9bb382b | 2967 | gdb_assert (TYPE_OBJFILE_OWNED (type)); |
4af88198 | 2968 | |
e9bb382b | 2969 | new_type = alloc_type_copy (type); |
4af88198 JB |
2970 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); |
2971 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
2972 | memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type), | |
2973 | sizeof (struct main_type)); | |
2974 | ||
2975 | return new_type; | |
2976 | } | |
2977 | ||
e9bb382b UW |
2978 | |
2979 | /* Helper functions to initialize architecture-specific types. */ | |
2980 | ||
2981 | /* Allocate a type structure associated with GDBARCH and set its | |
2982 | CODE, LENGTH, and NAME fields. */ | |
2983 | struct type * | |
2984 | arch_type (struct gdbarch *gdbarch, | |
2985 | enum type_code code, int length, char *name) | |
2986 | { | |
2987 | struct type *type; | |
2988 | ||
2989 | type = alloc_type_arch (gdbarch); | |
2990 | TYPE_CODE (type) = code; | |
2991 | TYPE_LENGTH (type) = length; | |
2992 | ||
2993 | if (name) | |
2994 | TYPE_NAME (type) = xstrdup (name); | |
2995 | ||
2996 | return type; | |
2997 | } | |
2998 | ||
2999 | /* Allocate a TYPE_CODE_INT type structure associated with GDBARCH. | |
3000 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3001 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
3002 | struct type * | |
3003 | arch_integer_type (struct gdbarch *gdbarch, | |
3004 | int bit, int unsigned_p, char *name) | |
3005 | { | |
3006 | struct type *t; | |
3007 | ||
3008 | t = arch_type (gdbarch, TYPE_CODE_INT, bit / TARGET_CHAR_BIT, name); | |
3009 | if (unsigned_p) | |
3010 | TYPE_UNSIGNED (t) = 1; | |
3011 | if (name && strcmp (name, "char") == 0) | |
3012 | TYPE_NOSIGN (t) = 1; | |
3013 | ||
3014 | return t; | |
3015 | } | |
3016 | ||
3017 | /* Allocate a TYPE_CODE_CHAR type structure associated with GDBARCH. | |
3018 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3019 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
3020 | struct type * | |
3021 | arch_character_type (struct gdbarch *gdbarch, | |
3022 | int bit, int unsigned_p, char *name) | |
3023 | { | |
3024 | struct type *t; | |
3025 | ||
3026 | t = arch_type (gdbarch, TYPE_CODE_CHAR, bit / TARGET_CHAR_BIT, name); | |
3027 | if (unsigned_p) | |
3028 | TYPE_UNSIGNED (t) = 1; | |
3029 | ||
3030 | return t; | |
3031 | } | |
3032 | ||
3033 | /* Allocate a TYPE_CODE_BOOL type structure associated with GDBARCH. | |
3034 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3035 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
3036 | struct type * | |
3037 | arch_boolean_type (struct gdbarch *gdbarch, | |
3038 | int bit, int unsigned_p, char *name) | |
3039 | { | |
3040 | struct type *t; | |
3041 | ||
3042 | t = arch_type (gdbarch, TYPE_CODE_BOOL, bit / TARGET_CHAR_BIT, name); | |
3043 | if (unsigned_p) | |
3044 | TYPE_UNSIGNED (t) = 1; | |
3045 | ||
3046 | return t; | |
3047 | } | |
3048 | ||
3049 | /* Allocate a TYPE_CODE_FLT type structure associated with GDBARCH. | |
3050 | BIT is the type size in bits; if BIT equals -1, the size is | |
3051 | determined by the floatformat. NAME is the type name. Set the | |
3052 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
27067745 | 3053 | struct type * |
e9bb382b UW |
3054 | arch_float_type (struct gdbarch *gdbarch, |
3055 | int bit, char *name, const struct floatformat **floatformats) | |
8da61cc4 DJ |
3056 | { |
3057 | struct type *t; | |
3058 | ||
3059 | if (bit == -1) | |
3060 | { | |
3061 | gdb_assert (floatformats != NULL); | |
3062 | gdb_assert (floatformats[0] != NULL && floatformats[1] != NULL); | |
3063 | bit = floatformats[0]->totalsize; | |
3064 | } | |
3065 | gdb_assert (bit >= 0); | |
3066 | ||
e9bb382b | 3067 | t = arch_type (gdbarch, TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, name); |
8da61cc4 DJ |
3068 | TYPE_FLOATFORMAT (t) = floatformats; |
3069 | return t; | |
3070 | } | |
3071 | ||
e9bb382b UW |
3072 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with GDBARCH. |
3073 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
27067745 | 3074 | struct type * |
e9bb382b UW |
3075 | arch_complex_type (struct gdbarch *gdbarch, |
3076 | char *name, struct type *target_type) | |
27067745 UW |
3077 | { |
3078 | struct type *t; | |
e9bb382b UW |
3079 | t = arch_type (gdbarch, TYPE_CODE_COMPLEX, |
3080 | 2 * TYPE_LENGTH (target_type), name); | |
27067745 UW |
3081 | TYPE_TARGET_TYPE (t) = target_type; |
3082 | return t; | |
3083 | } | |
3084 | ||
e9bb382b UW |
3085 | /* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH. |
3086 | NAME is the type name. LENGTH is the number of flag bits. */ | |
3087 | struct type * | |
3088 | arch_flags_type (struct gdbarch *gdbarch, char *name, int length) | |
3089 | { | |
3090 | int nfields = length * TARGET_CHAR_BIT; | |
3091 | struct type *type; | |
3092 | ||
3093 | type = arch_type (gdbarch, TYPE_CODE_FLAGS, length, name); | |
3094 | TYPE_UNSIGNED (type) = 1; | |
3095 | TYPE_NFIELDS (type) = nfields; | |
3096 | TYPE_FIELDS (type) = TYPE_ZALLOC (type, nfields * sizeof (struct field)); | |
3097 | ||
3098 | return type; | |
3099 | } | |
3100 | ||
3101 | /* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
3102 | position BITPOS is called NAME. */ | |
3103 | void | |
3104 | append_flags_type_flag (struct type *type, int bitpos, char *name) | |
3105 | { | |
3106 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS); | |
3107 | gdb_assert (bitpos < TYPE_NFIELDS (type)); | |
3108 | gdb_assert (bitpos >= 0); | |
3109 | ||
3110 | if (name) | |
3111 | { | |
3112 | TYPE_FIELD_NAME (type, bitpos) = xstrdup (name); | |
3113 | TYPE_FIELD_BITPOS (type, bitpos) = bitpos; | |
3114 | } | |
3115 | else | |
3116 | { | |
3117 | /* Don't show this field to the user. */ | |
3118 | TYPE_FIELD_BITPOS (type, bitpos) = -1; | |
3119 | } | |
3120 | } | |
3121 | ||
3122 | /* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as | |
3123 | specified by CODE) associated with GDBARCH. NAME is the type name. */ | |
3124 | struct type * | |
3125 | arch_composite_type (struct gdbarch *gdbarch, char *name, enum type_code code) | |
3126 | { | |
3127 | struct type *t; | |
3128 | gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION); | |
3129 | t = arch_type (gdbarch, code, 0, NULL); | |
3130 | TYPE_TAG_NAME (t) = name; | |
3131 | INIT_CPLUS_SPECIFIC (t); | |
3132 | return t; | |
3133 | } | |
3134 | ||
3135 | /* Add new field with name NAME and type FIELD to composite type T. | |
3136 | ALIGNMENT (if non-zero) specifies the minimum field alignment. */ | |
3137 | void | |
3138 | append_composite_type_field_aligned (struct type *t, char *name, | |
3139 | struct type *field, int alignment) | |
3140 | { | |
3141 | struct field *f; | |
3142 | TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; | |
3143 | TYPE_FIELDS (t) = xrealloc (TYPE_FIELDS (t), | |
3144 | sizeof (struct field) * TYPE_NFIELDS (t)); | |
3145 | f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); | |
3146 | memset (f, 0, sizeof f[0]); | |
3147 | FIELD_TYPE (f[0]) = field; | |
3148 | FIELD_NAME (f[0]) = name; | |
3149 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
3150 | { | |
3151 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) | |
3152 | TYPE_LENGTH (t) = TYPE_LENGTH (field); | |
3153 | } | |
3154 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
3155 | { | |
3156 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
3157 | if (TYPE_NFIELDS (t) > 1) | |
3158 | { | |
3159 | FIELD_BITPOS (f[0]) = (FIELD_BITPOS (f[-1]) | |
3160 | + (TYPE_LENGTH (FIELD_TYPE (f[-1])) | |
3161 | * TARGET_CHAR_BIT)); | |
3162 | ||
3163 | if (alignment) | |
3164 | { | |
3165 | int left = FIELD_BITPOS (f[0]) % (alignment * TARGET_CHAR_BIT); | |
3166 | if (left) | |
3167 | { | |
3168 | FIELD_BITPOS (f[0]) += left; | |
3169 | TYPE_LENGTH (t) += left / TARGET_CHAR_BIT; | |
3170 | } | |
3171 | } | |
3172 | } | |
3173 | } | |
3174 | } | |
3175 | ||
3176 | /* Add new field with name NAME and type FIELD to composite type T. */ | |
3177 | void | |
3178 | append_composite_type_field (struct type *t, char *name, | |
3179 | struct type *field) | |
3180 | { | |
3181 | append_composite_type_field_aligned (t, name, field, 0); | |
3182 | } | |
3183 | ||
3184 | ||
000177f0 AC |
3185 | static struct gdbarch_data *gdbtypes_data; |
3186 | ||
3187 | const struct builtin_type * | |
3188 | builtin_type (struct gdbarch *gdbarch) | |
3189 | { | |
3190 | return gdbarch_data (gdbarch, gdbtypes_data); | |
3191 | } | |
3192 | ||
3193 | static void * | |
3194 | gdbtypes_post_init (struct gdbarch *gdbarch) | |
3195 | { | |
3196 | struct builtin_type *builtin_type | |
3197 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); | |
3198 | ||
46bf5051 | 3199 | /* Basic types. */ |
e9bb382b UW |
3200 | builtin_type->builtin_void |
3201 | = arch_type (gdbarch, TYPE_CODE_VOID, 1, "void"); | |
3202 | builtin_type->builtin_char | |
3203 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
3204 | !gdbarch_char_signed (gdbarch), "char"); | |
3205 | builtin_type->builtin_signed_char | |
3206 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
3207 | 0, "signed char"); | |
3208 | builtin_type->builtin_unsigned_char | |
3209 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
3210 | 1, "unsigned char"); | |
3211 | builtin_type->builtin_short | |
3212 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
3213 | 0, "short"); | |
3214 | builtin_type->builtin_unsigned_short | |
3215 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
3216 | 1, "unsigned short"); | |
3217 | builtin_type->builtin_int | |
3218 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
3219 | 0, "int"); | |
3220 | builtin_type->builtin_unsigned_int | |
3221 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
3222 | 1, "unsigned int"); | |
3223 | builtin_type->builtin_long | |
3224 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
3225 | 0, "long"); | |
3226 | builtin_type->builtin_unsigned_long | |
3227 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
3228 | 1, "unsigned long"); | |
3229 | builtin_type->builtin_long_long | |
3230 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
3231 | 0, "long long"); | |
3232 | builtin_type->builtin_unsigned_long_long | |
3233 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
3234 | 1, "unsigned long long"); | |
70bd8e24 | 3235 | builtin_type->builtin_float |
e9bb382b | 3236 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), |
27067745 | 3237 | "float", gdbarch_float_format (gdbarch)); |
70bd8e24 | 3238 | builtin_type->builtin_double |
e9bb382b | 3239 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), |
27067745 | 3240 | "double", gdbarch_double_format (gdbarch)); |
70bd8e24 | 3241 | builtin_type->builtin_long_double |
e9bb382b | 3242 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), |
27067745 | 3243 | "long double", gdbarch_long_double_format (gdbarch)); |
70bd8e24 | 3244 | builtin_type->builtin_complex |
e9bb382b UW |
3245 | = arch_complex_type (gdbarch, "complex", |
3246 | builtin_type->builtin_float); | |
70bd8e24 | 3247 | builtin_type->builtin_double_complex |
e9bb382b UW |
3248 | = arch_complex_type (gdbarch, "double complex", |
3249 | builtin_type->builtin_double); | |
3250 | builtin_type->builtin_string | |
3251 | = arch_type (gdbarch, TYPE_CODE_STRING, 1, "string"); | |
3252 | builtin_type->builtin_bool | |
3253 | = arch_type (gdbarch, TYPE_CODE_BOOL, 1, "bool"); | |
000177f0 | 3254 | |
7678ef8f TJB |
3255 | /* The following three are about decimal floating point types, which |
3256 | are 32-bits, 64-bits and 128-bits respectively. */ | |
3257 | builtin_type->builtin_decfloat | |
e9bb382b | 3258 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 32 / 8, "_Decimal32"); |
7678ef8f | 3259 | builtin_type->builtin_decdouble |
e9bb382b | 3260 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 64 / 8, "_Decimal64"); |
7678ef8f | 3261 | builtin_type->builtin_declong |
e9bb382b | 3262 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 128 / 8, "_Decimal128"); |
7678ef8f | 3263 | |
69feb676 | 3264 | /* "True" character types. */ |
e9bb382b UW |
3265 | builtin_type->builtin_true_char |
3266 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 0, "true character"); | |
3267 | builtin_type->builtin_true_unsigned_char | |
3268 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 1, "true character"); | |
69feb676 | 3269 | |
df4df182 | 3270 | /* Fixed-size integer types. */ |
e9bb382b UW |
3271 | builtin_type->builtin_int0 |
3272 | = arch_integer_type (gdbarch, 0, 0, "int0_t"); | |
3273 | builtin_type->builtin_int8 | |
3274 | = arch_integer_type (gdbarch, 8, 0, "int8_t"); | |
3275 | builtin_type->builtin_uint8 | |
3276 | = arch_integer_type (gdbarch, 8, 1, "uint8_t"); | |
3277 | builtin_type->builtin_int16 | |
3278 | = arch_integer_type (gdbarch, 16, 0, "int16_t"); | |
3279 | builtin_type->builtin_uint16 | |
3280 | = arch_integer_type (gdbarch, 16, 1, "uint16_t"); | |
3281 | builtin_type->builtin_int32 | |
3282 | = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
3283 | builtin_type->builtin_uint32 | |
3284 | = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
3285 | builtin_type->builtin_int64 | |
3286 | = arch_integer_type (gdbarch, 64, 0, "int64_t"); | |
3287 | builtin_type->builtin_uint64 | |
3288 | = arch_integer_type (gdbarch, 64, 1, "uint64_t"); | |
3289 | builtin_type->builtin_int128 | |
3290 | = arch_integer_type (gdbarch, 128, 0, "int128_t"); | |
3291 | builtin_type->builtin_uint128 | |
3292 | = arch_integer_type (gdbarch, 128, 1, "uint128_t"); | |
3293 | TYPE_NOTTEXT (builtin_type->builtin_int8) = 1; | |
3294 | TYPE_NOTTEXT (builtin_type->builtin_uint8) = 1; | |
df4df182 | 3295 | |
46bf5051 | 3296 | /* Default data/code pointer types. */ |
e9bb382b UW |
3297 | builtin_type->builtin_data_ptr |
3298 | = lookup_pointer_type (builtin_type->builtin_void); | |
3299 | builtin_type->builtin_func_ptr | |
3300 | = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
46bf5051 | 3301 | |
78267919 | 3302 | /* This type represents a GDB internal function. */ |
e9bb382b UW |
3303 | builtin_type->internal_fn |
3304 | = arch_type (gdbarch, TYPE_CODE_INTERNAL_FUNCTION, 0, | |
3305 | "<internal function>"); | |
78267919 | 3306 | |
46bf5051 UW |
3307 | return builtin_type; |
3308 | } | |
3309 | ||
3310 | ||
3311 | /* This set of objfile-based types is intended to be used by symbol | |
3312 | readers as basic types. */ | |
3313 | ||
3314 | static const struct objfile_data *objfile_type_data; | |
3315 | ||
3316 | const struct objfile_type * | |
3317 | objfile_type (struct objfile *objfile) | |
3318 | { | |
3319 | struct gdbarch *gdbarch; | |
3320 | struct objfile_type *objfile_type | |
3321 | = objfile_data (objfile, objfile_type_data); | |
3322 | ||
3323 | if (objfile_type) | |
3324 | return objfile_type; | |
3325 | ||
3326 | objfile_type = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
3327 | 1, struct objfile_type); | |
3328 | ||
3329 | /* Use the objfile architecture to determine basic type properties. */ | |
3330 | gdbarch = get_objfile_arch (objfile); | |
3331 | ||
3332 | /* Basic types. */ | |
3333 | objfile_type->builtin_void | |
3334 | = init_type (TYPE_CODE_VOID, 1, | |
3335 | 0, | |
3336 | "void", objfile); | |
3337 | ||
3338 | objfile_type->builtin_char | |
3339 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3340 | (TYPE_FLAG_NOSIGN | |
3341 | | (gdbarch_char_signed (gdbarch) ? 0 : TYPE_FLAG_UNSIGNED)), | |
3342 | "char", objfile); | |
3343 | objfile_type->builtin_signed_char | |
3344 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3345 | 0, | |
3346 | "signed char", objfile); | |
3347 | objfile_type->builtin_unsigned_char | |
3348 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3349 | TYPE_FLAG_UNSIGNED, | |
3350 | "unsigned char", objfile); | |
3351 | objfile_type->builtin_short | |
3352 | = init_type (TYPE_CODE_INT, | |
3353 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
3354 | 0, "short", objfile); | |
3355 | objfile_type->builtin_unsigned_short | |
3356 | = init_type (TYPE_CODE_INT, | |
3357 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
3358 | TYPE_FLAG_UNSIGNED, "unsigned short", objfile); | |
3359 | objfile_type->builtin_int | |
3360 | = init_type (TYPE_CODE_INT, | |
3361 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
3362 | 0, "int", objfile); | |
3363 | objfile_type->builtin_unsigned_int | |
3364 | = init_type (TYPE_CODE_INT, | |
3365 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
3366 | TYPE_FLAG_UNSIGNED, "unsigned int", objfile); | |
3367 | objfile_type->builtin_long | |
3368 | = init_type (TYPE_CODE_INT, | |
3369 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
3370 | 0, "long", objfile); | |
3371 | objfile_type->builtin_unsigned_long | |
3372 | = init_type (TYPE_CODE_INT, | |
3373 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
3374 | TYPE_FLAG_UNSIGNED, "unsigned long", objfile); | |
3375 | objfile_type->builtin_long_long | |
3376 | = init_type (TYPE_CODE_INT, | |
3377 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
3378 | 0, "long long", objfile); | |
3379 | objfile_type->builtin_unsigned_long_long | |
3380 | = init_type (TYPE_CODE_INT, | |
3381 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
3382 | TYPE_FLAG_UNSIGNED, "unsigned long long", objfile); | |
3383 | ||
3384 | objfile_type->builtin_float | |
3385 | = init_type (TYPE_CODE_FLT, | |
3386 | gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, | |
3387 | 0, "float", objfile); | |
3388 | TYPE_FLOATFORMAT (objfile_type->builtin_float) | |
3389 | = gdbarch_float_format (gdbarch); | |
3390 | objfile_type->builtin_double | |
3391 | = init_type (TYPE_CODE_FLT, | |
3392 | gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
3393 | 0, "double", objfile); | |
3394 | TYPE_FLOATFORMAT (objfile_type->builtin_double) | |
3395 | = gdbarch_double_format (gdbarch); | |
3396 | objfile_type->builtin_long_double | |
3397 | = init_type (TYPE_CODE_FLT, | |
3398 | gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
3399 | 0, "long double", objfile); | |
3400 | TYPE_FLOATFORMAT (objfile_type->builtin_long_double) | |
3401 | = gdbarch_long_double_format (gdbarch); | |
3402 | ||
3403 | /* This type represents a type that was unrecognized in symbol read-in. */ | |
3404 | objfile_type->builtin_error | |
3405 | = init_type (TYPE_CODE_ERROR, 0, 0, "<unknown type>", objfile); | |
3406 | ||
3407 | /* The following set of types is used for symbols with no | |
3408 | debug information. */ | |
3409 | objfile_type->nodebug_text_symbol | |
3410 | = init_type (TYPE_CODE_FUNC, 1, 0, | |
3411 | "<text variable, no debug info>", objfile); | |
3412 | TYPE_TARGET_TYPE (objfile_type->nodebug_text_symbol) | |
3413 | = objfile_type->builtin_int; | |
3414 | objfile_type->nodebug_data_symbol | |
3415 | = init_type (TYPE_CODE_INT, | |
3416 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
3417 | "<data variable, no debug info>", objfile); | |
3418 | objfile_type->nodebug_unknown_symbol | |
3419 | = init_type (TYPE_CODE_INT, 1, 0, | |
3420 | "<variable (not text or data), no debug info>", objfile); | |
3421 | objfile_type->nodebug_tls_symbol | |
3422 | = init_type (TYPE_CODE_INT, | |
3423 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
3424 | "<thread local variable, no debug info>", objfile); | |
000177f0 AC |
3425 | |
3426 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
3427 | the same --- for example, on the D10V, pointers are 16 bits long, | |
3428 | but addresses are 32 bits long. See doc/gdbint.texinfo, | |
3429 | ``Pointers Are Not Always Addresses''. | |
3430 | ||
3431 | The upshot is: | |
3432 | - gdb's `struct type' always describes the target's | |
3433 | representation. | |
3434 | - gdb's `struct value' objects should always hold values in | |
3435 | target form. | |
3436 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
3437 | address space that the assembler and linker work with. Thus, | |
3438 | since target_read_memory takes a CORE_ADDR as an argument, it | |
3439 | can access any memory on the target, even if the processor has | |
3440 | separate code and data address spaces. | |
3441 | ||
3442 | So, for example: | |
3443 | - If v is a value holding a D10V code pointer, its contents are | |
3444 | in target form: a big-endian address left-shifted two bits. | |
3445 | - If p is a D10V pointer type, TYPE_LENGTH (p) == 2, just as | |
3446 | sizeof (void *) == 2 on the target. | |
3447 | ||
46bf5051 UW |
3448 | In this context, objfile_type->builtin_core_addr is a bit odd: |
3449 | it's a target type for a value the target will never see. It's | |
3450 | only used to hold the values of (typeless) linker symbols, which | |
3451 | are indeed in the unified virtual address space. */ | |
000177f0 | 3452 | |
46bf5051 UW |
3453 | objfile_type->builtin_core_addr |
3454 | = init_type (TYPE_CODE_INT, | |
3455 | gdbarch_addr_bit (gdbarch) / 8, | |
3456 | TYPE_FLAG_UNSIGNED, "__CORE_ADDR", objfile); | |
64c50499 | 3457 | |
46bf5051 UW |
3458 | set_objfile_data (objfile, objfile_type_data, objfile_type); |
3459 | return objfile_type; | |
000177f0 AC |
3460 | } |
3461 | ||
46bf5051 | 3462 | |
a14ed312 | 3463 | extern void _initialize_gdbtypes (void); |
c906108c | 3464 | void |
fba45db2 | 3465 | _initialize_gdbtypes (void) |
c906108c | 3466 | { |
5674de60 | 3467 | gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
46bf5051 | 3468 | objfile_type_data = register_objfile_data (); |
5674de60 | 3469 | |
85c07804 AC |
3470 | add_setshow_zinteger_cmd ("overload", no_class, &overload_debug, _("\ |
3471 | Set debugging of C++ overloading."), _("\ | |
3472 | Show debugging of C++ overloading."), _("\ | |
3473 | When enabled, ranking of the functions is displayed."), | |
3474 | NULL, | |
920d2a44 | 3475 | show_overload_debug, |
85c07804 | 3476 | &setdebuglist, &showdebuglist); |
5674de60 | 3477 | |
7ba81444 | 3478 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 UW |
3479 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3480 | &opaque_type_resolution, _("\ | |
3481 | Set resolution of opaque struct/class/union types (if set before loading symbols)."), _("\ | |
3482 | Show resolution of opaque struct/class/union types (if set before loading symbols)."), NULL, | |
3483 | NULL, | |
3484 | show_opaque_type_resolution, | |
3485 | &setlist, &showlist); | |
c906108c | 3486 | } |