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, |
4c38e0a4 JB |
4 | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
5 | Free Software Foundation, Inc. | |
4f2aea11 | 6 | |
c906108c SS |
7 | Contributed by Cygnus Support, using pieces from other GDB modules. |
8 | ||
c5aa993b | 9 | This file is part of GDB. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is free software; you can redistribute it and/or modify |
12 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 13 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 14 | (at your option) any later version. |
c906108c | 15 | |
c5aa993b JM |
16 | This program is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
c906108c | 20 | |
c5aa993b | 21 | You should have received a copy of the GNU General Public License |
a9762ec7 | 22 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
23 | |
24 | #include "defs.h" | |
25 | #include "gdb_string.h" | |
26 | #include "bfd.h" | |
27 | #include "symtab.h" | |
28 | #include "symfile.h" | |
29 | #include "objfiles.h" | |
30 | #include "gdbtypes.h" | |
31 | #include "expression.h" | |
32 | #include "language.h" | |
33 | #include "target.h" | |
34 | #include "value.h" | |
35 | #include "demangle.h" | |
36 | #include "complaints.h" | |
37 | #include "gdbcmd.h" | |
c91ecb25 | 38 | #include "wrapper.h" |
015a42b4 | 39 | #include "cp-abi.h" |
a02fd225 | 40 | #include "gdb_assert.h" |
ae5a43e0 | 41 | #include "hashtab.h" |
c906108c | 42 | |
ac3aafc7 | 43 | |
8da61cc4 DJ |
44 | /* Floatformat pairs. */ |
45 | const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { | |
46 | &floatformat_ieee_single_big, | |
47 | &floatformat_ieee_single_little | |
48 | }; | |
49 | const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { | |
50 | &floatformat_ieee_double_big, | |
51 | &floatformat_ieee_double_little | |
52 | }; | |
53 | const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { | |
54 | &floatformat_ieee_double_big, | |
55 | &floatformat_ieee_double_littlebyte_bigword | |
56 | }; | |
57 | const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { | |
58 | &floatformat_i387_ext, | |
59 | &floatformat_i387_ext | |
60 | }; | |
61 | const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { | |
62 | &floatformat_m68881_ext, | |
63 | &floatformat_m68881_ext | |
64 | }; | |
65 | const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { | |
66 | &floatformat_arm_ext_big, | |
67 | &floatformat_arm_ext_littlebyte_bigword | |
68 | }; | |
69 | const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { | |
70 | &floatformat_ia64_spill_big, | |
71 | &floatformat_ia64_spill_little | |
72 | }; | |
73 | const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = { | |
74 | &floatformat_ia64_quad_big, | |
75 | &floatformat_ia64_quad_little | |
76 | }; | |
77 | const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { | |
78 | &floatformat_vax_f, | |
79 | &floatformat_vax_f | |
80 | }; | |
81 | const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { | |
82 | &floatformat_vax_d, | |
83 | &floatformat_vax_d | |
84 | }; | |
b14d30e1 JM |
85 | const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { |
86 | &floatformat_ibm_long_double, | |
87 | &floatformat_ibm_long_double | |
88 | }; | |
8da61cc4 | 89 | |
8da61cc4 | 90 | |
c906108c | 91 | int opaque_type_resolution = 1; |
920d2a44 AC |
92 | static void |
93 | show_opaque_type_resolution (struct ui_file *file, int from_tty, | |
7ba81444 MS |
94 | struct cmd_list_element *c, |
95 | const char *value) | |
920d2a44 AC |
96 | { |
97 | fprintf_filtered (file, _("\ | |
98 | Resolution of opaque struct/class/union types (if set before loading symbols) is %s.\n"), | |
99 | value); | |
100 | } | |
101 | ||
5d161b24 | 102 | int overload_debug = 0; |
920d2a44 AC |
103 | static void |
104 | show_overload_debug (struct ui_file *file, int from_tty, | |
105 | struct cmd_list_element *c, const char *value) | |
106 | { | |
7ba81444 MS |
107 | fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"), |
108 | value); | |
920d2a44 | 109 | } |
c906108c | 110 | |
c5aa993b JM |
111 | struct extra |
112 | { | |
113 | char str[128]; | |
114 | int len; | |
7ba81444 | 115 | }; /* Maximum extension is 128! FIXME */ |
c906108c | 116 | |
a14ed312 | 117 | static void print_bit_vector (B_TYPE *, int); |
ad2f7632 | 118 | static void print_arg_types (struct field *, int, int); |
a14ed312 KB |
119 | static void dump_fn_fieldlists (struct type *, int); |
120 | static void print_cplus_stuff (struct type *, int); | |
7a292a7a | 121 | |
c906108c | 122 | |
e9bb382b UW |
123 | /* Allocate a new OBJFILE-associated type structure and fill it |
124 | with some defaults. Space for the type structure is allocated | |
125 | on the objfile's objfile_obstack. */ | |
c906108c SS |
126 | |
127 | struct type * | |
fba45db2 | 128 | alloc_type (struct objfile *objfile) |
c906108c | 129 | { |
52f0bd74 | 130 | struct type *type; |
c906108c | 131 | |
e9bb382b UW |
132 | gdb_assert (objfile != NULL); |
133 | ||
7ba81444 | 134 | /* Alloc the structure and start off with all fields zeroed. */ |
e9bb382b UW |
135 | type = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct type); |
136 | TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (&objfile->objfile_obstack, | |
137 | struct main_type); | |
138 | OBJSTAT (objfile, n_types++); | |
c906108c | 139 | |
e9bb382b UW |
140 | TYPE_OBJFILE_OWNED (type) = 1; |
141 | TYPE_OWNER (type).objfile = objfile; | |
c906108c | 142 | |
7ba81444 | 143 | /* Initialize the fields that might not be zero. */ |
c906108c SS |
144 | |
145 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
c906108c | 146 | TYPE_VPTR_FIELDNO (type) = -1; |
2fdde8f8 | 147 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
c906108c | 148 | |
c16abbde | 149 | return type; |
c906108c SS |
150 | } |
151 | ||
e9bb382b UW |
152 | /* Allocate a new GDBARCH-associated type structure and fill it |
153 | with some defaults. Space for the type structure is allocated | |
154 | on the heap. */ | |
155 | ||
156 | struct type * | |
157 | alloc_type_arch (struct gdbarch *gdbarch) | |
158 | { | |
159 | struct type *type; | |
160 | ||
161 | gdb_assert (gdbarch != NULL); | |
162 | ||
163 | /* Alloc the structure and start off with all fields zeroed. */ | |
164 | ||
165 | type = XZALLOC (struct type); | |
166 | TYPE_MAIN_TYPE (type) = XZALLOC (struct main_type); | |
167 | ||
168 | TYPE_OBJFILE_OWNED (type) = 0; | |
169 | TYPE_OWNER (type).gdbarch = gdbarch; | |
170 | ||
171 | /* Initialize the fields that might not be zero. */ | |
172 | ||
173 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
174 | TYPE_VPTR_FIELDNO (type) = -1; | |
175 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ | |
176 | ||
177 | return type; | |
178 | } | |
179 | ||
180 | /* If TYPE is objfile-associated, allocate a new type structure | |
181 | associated with the same objfile. If TYPE is gdbarch-associated, | |
182 | allocate a new type structure associated with the same gdbarch. */ | |
183 | ||
184 | struct type * | |
185 | alloc_type_copy (const struct type *type) | |
186 | { | |
187 | if (TYPE_OBJFILE_OWNED (type)) | |
188 | return alloc_type (TYPE_OWNER (type).objfile); | |
189 | else | |
190 | return alloc_type_arch (TYPE_OWNER (type).gdbarch); | |
191 | } | |
192 | ||
193 | /* If TYPE is gdbarch-associated, return that architecture. | |
194 | If TYPE is objfile-associated, return that objfile's architecture. */ | |
195 | ||
196 | struct gdbarch * | |
197 | get_type_arch (const struct type *type) | |
198 | { | |
199 | if (TYPE_OBJFILE_OWNED (type)) | |
200 | return get_objfile_arch (TYPE_OWNER (type).objfile); | |
201 | else | |
202 | return TYPE_OWNER (type).gdbarch; | |
203 | } | |
204 | ||
205 | ||
2fdde8f8 DJ |
206 | /* Alloc a new type instance structure, fill it with some defaults, |
207 | and point it at OLDTYPE. Allocate the new type instance from the | |
208 | same place as OLDTYPE. */ | |
209 | ||
210 | static struct type * | |
211 | alloc_type_instance (struct type *oldtype) | |
212 | { | |
213 | struct type *type; | |
214 | ||
215 | /* Allocate the structure. */ | |
216 | ||
e9bb382b | 217 | if (! TYPE_OBJFILE_OWNED (oldtype)) |
1deafd4e | 218 | type = XZALLOC (struct type); |
2fdde8f8 | 219 | else |
1deafd4e PA |
220 | type = OBSTACK_ZALLOC (&TYPE_OBJFILE (oldtype)->objfile_obstack, |
221 | struct type); | |
222 | ||
2fdde8f8 DJ |
223 | TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype); |
224 | ||
225 | TYPE_CHAIN (type) = type; /* Chain back to itself for now. */ | |
226 | ||
c16abbde | 227 | return type; |
2fdde8f8 DJ |
228 | } |
229 | ||
230 | /* Clear all remnants of the previous type at TYPE, in preparation for | |
e9bb382b | 231 | replacing it with something else. Preserve owner information. */ |
2fdde8f8 DJ |
232 | static void |
233 | smash_type (struct type *type) | |
234 | { | |
e9bb382b UW |
235 | int objfile_owned = TYPE_OBJFILE_OWNED (type); |
236 | union type_owner owner = TYPE_OWNER (type); | |
237 | ||
2fdde8f8 DJ |
238 | memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
239 | ||
e9bb382b UW |
240 | /* Restore owner information. */ |
241 | TYPE_OBJFILE_OWNED (type) = objfile_owned; | |
242 | TYPE_OWNER (type) = owner; | |
243 | ||
2fdde8f8 DJ |
244 | /* For now, delete the rings. */ |
245 | TYPE_CHAIN (type) = type; | |
246 | ||
247 | /* For now, leave the pointer/reference types alone. */ | |
248 | } | |
249 | ||
c906108c SS |
250 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
251 | to a pointer to memory where the pointer type should be stored. | |
252 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
253 | We allocate new memory if needed. */ | |
254 | ||
255 | struct type * | |
fba45db2 | 256 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 257 | { |
52f0bd74 | 258 | struct type *ntype; /* New type */ |
053cb41b | 259 | struct type *chain; |
c906108c SS |
260 | |
261 | ntype = TYPE_POINTER_TYPE (type); | |
262 | ||
c5aa993b | 263 | if (ntype) |
c906108c | 264 | { |
c5aa993b | 265 | if (typeptr == 0) |
7ba81444 MS |
266 | return ntype; /* Don't care about alloc, |
267 | and have new type. */ | |
c906108c | 268 | else if (*typeptr == 0) |
c5aa993b | 269 | { |
7ba81444 | 270 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 271 | return ntype; |
c5aa993b | 272 | } |
c906108c SS |
273 | } |
274 | ||
275 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
276 | { | |
e9bb382b | 277 | ntype = alloc_type_copy (type); |
c906108c SS |
278 | if (typeptr) |
279 | *typeptr = ntype; | |
280 | } | |
7ba81444 | 281 | else /* We have storage, but need to reset it. */ |
c906108c SS |
282 | { |
283 | ntype = *typeptr; | |
053cb41b | 284 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 285 | smash_type (ntype); |
053cb41b | 286 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
287 | } |
288 | ||
289 | TYPE_TARGET_TYPE (ntype) = type; | |
290 | TYPE_POINTER_TYPE (type) = ntype; | |
291 | ||
7ba81444 MS |
292 | /* FIXME! Assume the machine has only one representation for |
293 | pointers! */ | |
c906108c | 294 | |
50810684 UW |
295 | TYPE_LENGTH (ntype) |
296 | = gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c SS |
297 | TYPE_CODE (ntype) = TYPE_CODE_PTR; |
298 | ||
67b2adb2 | 299 | /* Mark pointers as unsigned. The target converts between pointers |
76e71323 | 300 | and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and |
7ba81444 | 301 | gdbarch_address_to_pointer. */ |
876cecd0 | 302 | TYPE_UNSIGNED (ntype) = 1; |
c5aa993b | 303 | |
c906108c SS |
304 | if (!TYPE_POINTER_TYPE (type)) /* Remember it, if don't have one. */ |
305 | TYPE_POINTER_TYPE (type) = ntype; | |
306 | ||
053cb41b JB |
307 | /* Update the length of all the other variants of this type. */ |
308 | chain = TYPE_CHAIN (ntype); | |
309 | while (chain != ntype) | |
310 | { | |
311 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
312 | chain = TYPE_CHAIN (chain); | |
313 | } | |
314 | ||
c906108c SS |
315 | return ntype; |
316 | } | |
317 | ||
318 | /* Given a type TYPE, return a type of pointers to that type. | |
319 | May need to construct such a type if this is the first use. */ | |
320 | ||
321 | struct type * | |
fba45db2 | 322 | lookup_pointer_type (struct type *type) |
c906108c | 323 | { |
c5aa993b | 324 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
325 | } |
326 | ||
7ba81444 MS |
327 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, |
328 | points to a pointer to memory where the reference type should be | |
329 | stored. If *TYPEPTR is zero, update it to point to the reference | |
330 | type we return. We allocate new memory if needed. */ | |
c906108c SS |
331 | |
332 | struct type * | |
fba45db2 | 333 | make_reference_type (struct type *type, struct type **typeptr) |
c906108c | 334 | { |
52f0bd74 | 335 | struct type *ntype; /* New type */ |
1e98b326 | 336 | struct type *chain; |
c906108c SS |
337 | |
338 | ntype = TYPE_REFERENCE_TYPE (type); | |
339 | ||
c5aa993b | 340 | if (ntype) |
c906108c | 341 | { |
c5aa993b | 342 | if (typeptr == 0) |
7ba81444 MS |
343 | return ntype; /* Don't care about alloc, |
344 | and have new type. */ | |
c906108c | 345 | else if (*typeptr == 0) |
c5aa993b | 346 | { |
7ba81444 | 347 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 348 | return ntype; |
c5aa993b | 349 | } |
c906108c SS |
350 | } |
351 | ||
352 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
353 | { | |
e9bb382b | 354 | ntype = alloc_type_copy (type); |
c906108c SS |
355 | if (typeptr) |
356 | *typeptr = ntype; | |
357 | } | |
7ba81444 | 358 | else /* We have storage, but need to reset it. */ |
c906108c SS |
359 | { |
360 | ntype = *typeptr; | |
1e98b326 | 361 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 362 | smash_type (ntype); |
1e98b326 | 363 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
364 | } |
365 | ||
366 | TYPE_TARGET_TYPE (ntype) = type; | |
367 | TYPE_REFERENCE_TYPE (type) = ntype; | |
368 | ||
7ba81444 MS |
369 | /* FIXME! Assume the machine has only one representation for |
370 | references, and that it matches the (only) representation for | |
371 | pointers! */ | |
c906108c | 372 | |
50810684 UW |
373 | TYPE_LENGTH (ntype) = |
374 | gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c | 375 | TYPE_CODE (ntype) = TYPE_CODE_REF; |
c5aa993b | 376 | |
c906108c SS |
377 | if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */ |
378 | TYPE_REFERENCE_TYPE (type) = ntype; | |
379 | ||
1e98b326 JB |
380 | /* Update the length of all the other variants of this type. */ |
381 | chain = TYPE_CHAIN (ntype); | |
382 | while (chain != ntype) | |
383 | { | |
384 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
385 | chain = TYPE_CHAIN (chain); | |
386 | } | |
387 | ||
c906108c SS |
388 | return ntype; |
389 | } | |
390 | ||
7ba81444 MS |
391 | /* Same as above, but caller doesn't care about memory allocation |
392 | details. */ | |
c906108c SS |
393 | |
394 | struct type * | |
fba45db2 | 395 | lookup_reference_type (struct type *type) |
c906108c | 396 | { |
c5aa993b | 397 | return make_reference_type (type, (struct type **) 0); |
c906108c SS |
398 | } |
399 | ||
7ba81444 MS |
400 | /* Lookup a function type that returns type TYPE. TYPEPTR, if |
401 | nonzero, points to a pointer to memory where the function type | |
402 | should be stored. If *TYPEPTR is zero, update it to point to the | |
0c8b41f1 | 403 | function type we return. We allocate new memory if needed. */ |
c906108c SS |
404 | |
405 | struct type * | |
0c8b41f1 | 406 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 407 | { |
52f0bd74 | 408 | struct type *ntype; /* New type */ |
c906108c SS |
409 | |
410 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
411 | { | |
e9bb382b | 412 | ntype = alloc_type_copy (type); |
c906108c SS |
413 | if (typeptr) |
414 | *typeptr = ntype; | |
415 | } | |
7ba81444 | 416 | else /* We have storage, but need to reset it. */ |
c906108c SS |
417 | { |
418 | ntype = *typeptr; | |
2fdde8f8 | 419 | smash_type (ntype); |
c906108c SS |
420 | } |
421 | ||
422 | TYPE_TARGET_TYPE (ntype) = type; | |
423 | ||
424 | TYPE_LENGTH (ntype) = 1; | |
425 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
c5aa993b | 426 | |
c906108c SS |
427 | return ntype; |
428 | } | |
429 | ||
430 | ||
431 | /* Given a type TYPE, return a type of functions that return that type. | |
432 | May need to construct such a type if this is the first use. */ | |
433 | ||
434 | struct type * | |
fba45db2 | 435 | lookup_function_type (struct type *type) |
c906108c | 436 | { |
0c8b41f1 | 437 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
438 | } |
439 | ||
47663de5 MS |
440 | /* Identify address space identifier by name -- |
441 | return the integer flag defined in gdbtypes.h. */ | |
442 | extern int | |
50810684 | 443 | address_space_name_to_int (struct gdbarch *gdbarch, char *space_identifier) |
47663de5 | 444 | { |
8b2dbe47 | 445 | int type_flags; |
7ba81444 | 446 | /* Check for known address space delimiters. */ |
47663de5 | 447 | if (!strcmp (space_identifier, "code")) |
876cecd0 | 448 | return TYPE_INSTANCE_FLAG_CODE_SPACE; |
47663de5 | 449 | else if (!strcmp (space_identifier, "data")) |
876cecd0 | 450 | return TYPE_INSTANCE_FLAG_DATA_SPACE; |
5f11f355 AC |
451 | else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
452 | && gdbarch_address_class_name_to_type_flags (gdbarch, | |
453 | space_identifier, | |
454 | &type_flags)) | |
8b2dbe47 | 455 | return type_flags; |
47663de5 | 456 | else |
8a3fe4f8 | 457 | error (_("Unknown address space specifier: \"%s\""), space_identifier); |
47663de5 MS |
458 | } |
459 | ||
460 | /* Identify address space identifier by integer flag as defined in | |
7ba81444 | 461 | gdbtypes.h -- return the string version of the adress space name. */ |
47663de5 | 462 | |
321432c0 | 463 | const char * |
50810684 | 464 | address_space_int_to_name (struct gdbarch *gdbarch, int space_flag) |
47663de5 | 465 | { |
876cecd0 | 466 | if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE) |
47663de5 | 467 | return "code"; |
876cecd0 | 468 | else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE) |
47663de5 | 469 | return "data"; |
876cecd0 | 470 | else if ((space_flag & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) |
5f11f355 AC |
471 | && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
472 | return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); | |
47663de5 MS |
473 | else |
474 | return NULL; | |
475 | } | |
476 | ||
2fdde8f8 | 477 | /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
ad766c0a JB |
478 | |
479 | If STORAGE is non-NULL, create the new type instance there. | |
480 | STORAGE must be in the same obstack as TYPE. */ | |
47663de5 | 481 | |
b9362cc7 | 482 | static struct type * |
2fdde8f8 DJ |
483 | make_qualified_type (struct type *type, int new_flags, |
484 | struct type *storage) | |
47663de5 MS |
485 | { |
486 | struct type *ntype; | |
487 | ||
488 | ntype = type; | |
5f61c20e JK |
489 | do |
490 | { | |
491 | if (TYPE_INSTANCE_FLAGS (ntype) == new_flags) | |
492 | return ntype; | |
493 | ntype = TYPE_CHAIN (ntype); | |
494 | } | |
495 | while (ntype != type); | |
47663de5 | 496 | |
2fdde8f8 DJ |
497 | /* Create a new type instance. */ |
498 | if (storage == NULL) | |
499 | ntype = alloc_type_instance (type); | |
500 | else | |
501 | { | |
7ba81444 MS |
502 | /* If STORAGE was provided, it had better be in the same objfile |
503 | as TYPE. Otherwise, we can't link it into TYPE's cv chain: | |
504 | if one objfile is freed and the other kept, we'd have | |
505 | dangling pointers. */ | |
ad766c0a JB |
506 | gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage)); |
507 | ||
2fdde8f8 DJ |
508 | ntype = storage; |
509 | TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); | |
510 | TYPE_CHAIN (ntype) = ntype; | |
511 | } | |
47663de5 MS |
512 | |
513 | /* Pointers or references to the original type are not relevant to | |
2fdde8f8 | 514 | the new type. */ |
47663de5 MS |
515 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
516 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
47663de5 | 517 | |
2fdde8f8 DJ |
518 | /* Chain the new qualified type to the old type. */ |
519 | TYPE_CHAIN (ntype) = TYPE_CHAIN (type); | |
520 | TYPE_CHAIN (type) = ntype; | |
521 | ||
522 | /* Now set the instance flags and return the new type. */ | |
523 | TYPE_INSTANCE_FLAGS (ntype) = new_flags; | |
47663de5 | 524 | |
ab5d3da6 KB |
525 | /* Set length of new type to that of the original type. */ |
526 | TYPE_LENGTH (ntype) = TYPE_LENGTH (type); | |
527 | ||
47663de5 MS |
528 | return ntype; |
529 | } | |
530 | ||
2fdde8f8 DJ |
531 | /* Make an address-space-delimited variant of a type -- a type that |
532 | is identical to the one supplied except that it has an address | |
533 | space attribute attached to it (such as "code" or "data"). | |
534 | ||
7ba81444 MS |
535 | The space attributes "code" and "data" are for Harvard |
536 | architectures. The address space attributes are for architectures | |
537 | which have alternately sized pointers or pointers with alternate | |
538 | representations. */ | |
2fdde8f8 DJ |
539 | |
540 | struct type * | |
541 | make_type_with_address_space (struct type *type, int space_flag) | |
542 | { | |
2fdde8f8 | 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 | 568 | struct type *ntype; /* New type */ |
c906108c | 569 | |
2fdde8f8 | 570 | int new_flags = (TYPE_INSTANCE_FLAGS (type) |
308d96ed MS |
571 | & ~(TYPE_INSTANCE_FLAG_CONST |
572 | | TYPE_INSTANCE_FLAG_VOLATILE)); | |
c906108c | 573 | |
c906108c | 574 | if (cnst) |
876cecd0 | 575 | new_flags |= TYPE_INSTANCE_FLAG_CONST; |
c906108c SS |
576 | |
577 | if (voltl) | |
876cecd0 | 578 | new_flags |= TYPE_INSTANCE_FLAG_VOLATILE; |
a02fd225 | 579 | |
2fdde8f8 | 580 | if (typeptr && *typeptr != NULL) |
a02fd225 | 581 | { |
ad766c0a JB |
582 | /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
583 | a C-V variant chain that threads across objfiles: if one | |
584 | objfile gets freed, then the other has a broken C-V chain. | |
585 | ||
586 | This code used to try to copy over the main type from TYPE to | |
587 | *TYPEPTR if they were in different objfiles, but that's | |
588 | wrong, too: TYPE may have a field list or member function | |
589 | lists, which refer to types of their own, etc. etc. The | |
590 | whole shebang would need to be copied over recursively; you | |
591 | can't have inter-objfile pointers. The only thing to do is | |
592 | to leave stub types as stub types, and look them up afresh by | |
593 | name each time you encounter them. */ | |
594 | gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type)); | |
2fdde8f8 DJ |
595 | } |
596 | ||
7ba81444 MS |
597 | ntype = make_qualified_type (type, new_flags, |
598 | typeptr ? *typeptr : NULL); | |
c906108c | 599 | |
2fdde8f8 DJ |
600 | if (typeptr != NULL) |
601 | *typeptr = ntype; | |
a02fd225 | 602 | |
2fdde8f8 | 603 | return ntype; |
a02fd225 | 604 | } |
c906108c | 605 | |
2fdde8f8 DJ |
606 | /* Replace the contents of ntype with the type *type. This changes the |
607 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
608 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 609 | |
cda6c68a JB |
610 | In order to build recursive types, it's inevitable that we'll need |
611 | to update types in place --- but this sort of indiscriminate | |
612 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
613 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
614 | clear if more steps are needed. */ | |
dd6bda65 DJ |
615 | void |
616 | replace_type (struct type *ntype, struct type *type) | |
617 | { | |
ab5d3da6 | 618 | struct type *chain; |
dd6bda65 | 619 | |
ad766c0a JB |
620 | /* These two types had better be in the same objfile. Otherwise, |
621 | the assignment of one type's main type structure to the other | |
622 | will produce a type with references to objects (names; field | |
623 | lists; etc.) allocated on an objfile other than its own. */ | |
624 | gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (ntype)); | |
625 | ||
2fdde8f8 | 626 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 627 | |
7ba81444 MS |
628 | /* The type length is not a part of the main type. Update it for |
629 | each type on the variant chain. */ | |
ab5d3da6 | 630 | chain = ntype; |
5f61c20e JK |
631 | do |
632 | { | |
633 | /* Assert that this element of the chain has no address-class bits | |
634 | set in its flags. Such type variants might have type lengths | |
635 | which are supposed to be different from the non-address-class | |
636 | variants. This assertion shouldn't ever be triggered because | |
637 | symbol readers which do construct address-class variants don't | |
638 | call replace_type(). */ | |
639 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
640 | ||
641 | TYPE_LENGTH (chain) = TYPE_LENGTH (type); | |
642 | chain = TYPE_CHAIN (chain); | |
643 | } | |
644 | while (ntype != chain); | |
ab5d3da6 | 645 | |
2fdde8f8 DJ |
646 | /* Assert that the two types have equivalent instance qualifiers. |
647 | This should be true for at least all of our debug readers. */ | |
648 | gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type)); | |
dd6bda65 DJ |
649 | } |
650 | ||
c906108c SS |
651 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
652 | May need to construct such a type if this is the first use. | |
653 | The TYPE is the type of the member. The DOMAIN is the type | |
654 | of the aggregate that the member belongs to. */ | |
655 | ||
656 | struct type * | |
0d5de010 | 657 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 658 | { |
52f0bd74 | 659 | struct type *mtype; |
c906108c | 660 | |
e9bb382b | 661 | mtype = alloc_type_copy (type); |
0d5de010 | 662 | smash_to_memberptr_type (mtype, domain, type); |
c16abbde | 663 | return mtype; |
c906108c SS |
664 | } |
665 | ||
0d5de010 DJ |
666 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
667 | ||
668 | struct type * | |
669 | lookup_methodptr_type (struct type *to_type) | |
670 | { | |
671 | struct type *mtype; | |
672 | ||
e9bb382b | 673 | mtype = alloc_type_copy (to_type); |
0b92b5bb | 674 | smash_to_methodptr_type (mtype, to_type); |
0d5de010 DJ |
675 | return mtype; |
676 | } | |
677 | ||
7ba81444 MS |
678 | /* Allocate a stub method whose return type is TYPE. This apparently |
679 | happens for speed of symbol reading, since parsing out the | |
680 | arguments to the method is cpu-intensive, the way we are doing it. | |
681 | So, we will fill in arguments later. This always returns a fresh | |
682 | type. */ | |
c906108c SS |
683 | |
684 | struct type * | |
fba45db2 | 685 | allocate_stub_method (struct type *type) |
c906108c SS |
686 | { |
687 | struct type *mtype; | |
688 | ||
e9bb382b UW |
689 | mtype = alloc_type_copy (type); |
690 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; | |
691 | TYPE_LENGTH (mtype) = 1; | |
692 | TYPE_STUB (mtype) = 1; | |
c906108c SS |
693 | TYPE_TARGET_TYPE (mtype) = type; |
694 | /* _DOMAIN_TYPE (mtype) = unknown yet */ | |
c16abbde | 695 | return mtype; |
c906108c SS |
696 | } |
697 | ||
7ba81444 MS |
698 | /* Create a range type using either a blank type supplied in |
699 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
700 | INDEX_TYPE. | |
c906108c | 701 | |
7ba81444 MS |
702 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND |
703 | to HIGH_BOUND, inclusive. | |
c906108c | 704 | |
7ba81444 MS |
705 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
706 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
c906108c SS |
707 | |
708 | struct type * | |
fba45db2 | 709 | create_range_type (struct type *result_type, struct type *index_type, |
43bbcdc2 | 710 | LONGEST low_bound, LONGEST high_bound) |
c906108c SS |
711 | { |
712 | if (result_type == NULL) | |
e9bb382b | 713 | result_type = alloc_type_copy (index_type); |
c906108c SS |
714 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; |
715 | TYPE_TARGET_TYPE (result_type) = index_type; | |
74a9bb82 | 716 | if (TYPE_STUB (index_type)) |
876cecd0 | 717 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c SS |
718 | else |
719 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
43bbcdc2 PH |
720 | TYPE_RANGE_DATA (result_type) = (struct range_bounds *) |
721 | TYPE_ZALLOC (result_type, sizeof (struct range_bounds)); | |
262452ec JK |
722 | TYPE_LOW_BOUND (result_type) = low_bound; |
723 | TYPE_HIGH_BOUND (result_type) = high_bound; | |
c906108c | 724 | |
c5aa993b | 725 | if (low_bound >= 0) |
876cecd0 | 726 | TYPE_UNSIGNED (result_type) = 1; |
c906108c | 727 | |
262452ec | 728 | return result_type; |
c906108c SS |
729 | } |
730 | ||
7ba81444 MS |
731 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
732 | TYPE. Return 1 if type is a range type, 0 if it is discrete (and | |
733 | bounds will fit in LONGEST), or -1 otherwise. */ | |
c906108c SS |
734 | |
735 | int | |
fba45db2 | 736 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c SS |
737 | { |
738 | CHECK_TYPEDEF (type); | |
739 | switch (TYPE_CODE (type)) | |
740 | { | |
741 | case TYPE_CODE_RANGE: | |
742 | *lowp = TYPE_LOW_BOUND (type); | |
743 | *highp = TYPE_HIGH_BOUND (type); | |
744 | return 1; | |
745 | case TYPE_CODE_ENUM: | |
746 | if (TYPE_NFIELDS (type) > 0) | |
747 | { | |
748 | /* The enums may not be sorted by value, so search all | |
749 | entries */ | |
750 | int i; | |
751 | ||
752 | *lowp = *highp = TYPE_FIELD_BITPOS (type, 0); | |
753 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
754 | { | |
755 | if (TYPE_FIELD_BITPOS (type, i) < *lowp) | |
756 | *lowp = TYPE_FIELD_BITPOS (type, i); | |
757 | if (TYPE_FIELD_BITPOS (type, i) > *highp) | |
758 | *highp = TYPE_FIELD_BITPOS (type, i); | |
759 | } | |
760 | ||
7ba81444 | 761 | /* Set unsigned indicator if warranted. */ |
c5aa993b | 762 | if (*lowp >= 0) |
c906108c | 763 | { |
876cecd0 | 764 | TYPE_UNSIGNED (type) = 1; |
c906108c SS |
765 | } |
766 | } | |
767 | else | |
768 | { | |
769 | *lowp = 0; | |
770 | *highp = -1; | |
771 | } | |
772 | return 0; | |
773 | case TYPE_CODE_BOOL: | |
774 | *lowp = 0; | |
775 | *highp = 1; | |
776 | return 0; | |
777 | case TYPE_CODE_INT: | |
c5aa993b | 778 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
779 | return -1; |
780 | if (!TYPE_UNSIGNED (type)) | |
781 | { | |
c5aa993b | 782 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
783 | *highp = -*lowp - 1; |
784 | return 0; | |
785 | } | |
7ba81444 | 786 | /* ... fall through for unsigned ints ... */ |
c906108c SS |
787 | case TYPE_CODE_CHAR: |
788 | *lowp = 0; | |
789 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 | 790 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
7ba81444 | 791 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
c906108c SS |
792 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
793 | *highp = (*highp - 1) | *highp; | |
794 | return 0; | |
795 | default: | |
796 | return -1; | |
797 | } | |
798 | } | |
799 | ||
7ba81444 MS |
800 | /* Create an array type using either a blank type supplied in |
801 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
802 | RANGE_TYPE. | |
c906108c SS |
803 | |
804 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
805 | RANGE_TYPE. | |
806 | ||
7ba81444 MS |
807 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
808 | sure it is TYPE_CODE_UNDEF before we bash it into an array | |
809 | type? */ | |
c906108c SS |
810 | |
811 | struct type * | |
7ba81444 MS |
812 | create_array_type (struct type *result_type, |
813 | struct type *element_type, | |
fba45db2 | 814 | struct type *range_type) |
c906108c SS |
815 | { |
816 | LONGEST low_bound, high_bound; | |
817 | ||
818 | if (result_type == NULL) | |
e9bb382b UW |
819 | result_type = alloc_type_copy (range_type); |
820 | ||
c906108c SS |
821 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
822 | TYPE_TARGET_TYPE (result_type) = element_type; | |
823 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
824 | low_bound = high_bound = 0; | |
825 | CHECK_TYPEDEF (element_type); | |
ab0d6e0d JB |
826 | /* Be careful when setting the array length. Ada arrays can be |
827 | empty arrays with the high_bound being smaller than the low_bound. | |
828 | In such cases, the array length should be zero. */ | |
829 | if (high_bound < low_bound) | |
830 | TYPE_LENGTH (result_type) = 0; | |
831 | else | |
832 | TYPE_LENGTH (result_type) = | |
833 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
c906108c SS |
834 | TYPE_NFIELDS (result_type) = 1; |
835 | TYPE_FIELDS (result_type) = | |
1deafd4e | 836 | (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); |
262452ec | 837 | TYPE_INDEX_TYPE (result_type) = range_type; |
c906108c SS |
838 | TYPE_VPTR_FIELDNO (result_type) = -1; |
839 | ||
840 | /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays */ | |
841 | if (TYPE_LENGTH (result_type) == 0) | |
876cecd0 | 842 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c | 843 | |
c16abbde | 844 | return result_type; |
c906108c SS |
845 | } |
846 | ||
e3506a9f UW |
847 | struct type * |
848 | lookup_array_range_type (struct type *element_type, | |
849 | int low_bound, int high_bound) | |
850 | { | |
50810684 | 851 | struct gdbarch *gdbarch = get_type_arch (element_type); |
e3506a9f UW |
852 | struct type *index_type = builtin_type (gdbarch)->builtin_int; |
853 | struct type *range_type | |
854 | = create_range_type (NULL, index_type, low_bound, high_bound); | |
855 | return create_array_type (NULL, element_type, range_type); | |
856 | } | |
857 | ||
7ba81444 MS |
858 | /* Create a string type using either a blank type supplied in |
859 | RESULT_TYPE, or creating a new type. String types are similar | |
860 | enough to array of char types that we can use create_array_type to | |
861 | build the basic type and then bash it into a string type. | |
c906108c SS |
862 | |
863 | For fixed length strings, the range type contains 0 as the lower | |
864 | bound and the length of the string minus one as the upper bound. | |
865 | ||
7ba81444 MS |
866 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
867 | sure it is TYPE_CODE_UNDEF before we bash it into a string | |
868 | type? */ | |
c906108c SS |
869 | |
870 | struct type * | |
3b7538c0 UW |
871 | create_string_type (struct type *result_type, |
872 | struct type *string_char_type, | |
7ba81444 | 873 | struct type *range_type) |
c906108c SS |
874 | { |
875 | result_type = create_array_type (result_type, | |
f290d38e | 876 | string_char_type, |
c906108c SS |
877 | range_type); |
878 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
c16abbde | 879 | return result_type; |
c906108c SS |
880 | } |
881 | ||
e3506a9f UW |
882 | struct type * |
883 | lookup_string_range_type (struct type *string_char_type, | |
884 | int low_bound, int high_bound) | |
885 | { | |
886 | struct type *result_type; | |
887 | result_type = lookup_array_range_type (string_char_type, | |
888 | low_bound, high_bound); | |
889 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
890 | return result_type; | |
891 | } | |
892 | ||
c906108c | 893 | struct type * |
fba45db2 | 894 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c | 895 | { |
c906108c | 896 | if (result_type == NULL) |
e9bb382b UW |
897 | result_type = alloc_type_copy (domain_type); |
898 | ||
c906108c SS |
899 | TYPE_CODE (result_type) = TYPE_CODE_SET; |
900 | TYPE_NFIELDS (result_type) = 1; | |
1deafd4e | 901 | TYPE_FIELDS (result_type) = TYPE_ZALLOC (result_type, sizeof (struct field)); |
c906108c | 902 | |
74a9bb82 | 903 | if (!TYPE_STUB (domain_type)) |
c906108c | 904 | { |
f9780d5b | 905 | LONGEST low_bound, high_bound, bit_length; |
c906108c SS |
906 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
907 | low_bound = high_bound = 0; | |
908 | bit_length = high_bound - low_bound + 1; | |
909 | TYPE_LENGTH (result_type) | |
910 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
f9780d5b | 911 | if (low_bound >= 0) |
876cecd0 | 912 | TYPE_UNSIGNED (result_type) = 1; |
c906108c SS |
913 | } |
914 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
915 | ||
c16abbde | 916 | return result_type; |
c906108c SS |
917 | } |
918 | ||
ea37ba09 DJ |
919 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
920 | and any array types nested inside it. */ | |
921 | ||
922 | void | |
923 | make_vector_type (struct type *array_type) | |
924 | { | |
925 | struct type *inner_array, *elt_type; | |
926 | int flags; | |
927 | ||
928 | /* Find the innermost array type, in case the array is | |
929 | multi-dimensional. */ | |
930 | inner_array = array_type; | |
931 | while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY) | |
932 | inner_array = TYPE_TARGET_TYPE (inner_array); | |
933 | ||
934 | elt_type = TYPE_TARGET_TYPE (inner_array); | |
935 | if (TYPE_CODE (elt_type) == TYPE_CODE_INT) | |
936 | { | |
937 | flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_FLAG_NOTTEXT; | |
938 | elt_type = make_qualified_type (elt_type, flags, NULL); | |
939 | TYPE_TARGET_TYPE (inner_array) = elt_type; | |
940 | } | |
941 | ||
876cecd0 | 942 | TYPE_VECTOR (array_type) = 1; |
ea37ba09 DJ |
943 | } |
944 | ||
794ac428 | 945 | struct type * |
ac3aafc7 EZ |
946 | init_vector_type (struct type *elt_type, int n) |
947 | { | |
948 | struct type *array_type; | |
e3506a9f | 949 | array_type = lookup_array_range_type (elt_type, 0, n - 1); |
ea37ba09 | 950 | make_vector_type (array_type); |
ac3aafc7 EZ |
951 | return array_type; |
952 | } | |
953 | ||
0d5de010 DJ |
954 | /* Smash TYPE to be a type of pointers to members of DOMAIN with type |
955 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a | |
956 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
957 | TYPE doesn't include the offset (that's the value of the MEMBER | |
958 | itself), but does include the structure type into which it points | |
959 | (for some reason). | |
c906108c | 960 | |
7ba81444 MS |
961 | When "smashing" the type, we preserve the objfile that the old type |
962 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
963 | allocated. */ |
964 | ||
965 | void | |
0d5de010 DJ |
966 | smash_to_memberptr_type (struct type *type, struct type *domain, |
967 | struct type *to_type) | |
c906108c | 968 | { |
2fdde8f8 | 969 | smash_type (type); |
c906108c SS |
970 | TYPE_TARGET_TYPE (type) = to_type; |
971 | TYPE_DOMAIN_TYPE (type) = domain; | |
0d5de010 DJ |
972 | /* Assume that a data member pointer is the same size as a normal |
973 | pointer. */ | |
50810684 UW |
974 | TYPE_LENGTH (type) |
975 | = gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT; | |
0d5de010 | 976 | TYPE_CODE (type) = TYPE_CODE_MEMBERPTR; |
c906108c SS |
977 | } |
978 | ||
0b92b5bb TT |
979 | /* Smash TYPE to be a type of pointer to methods type TO_TYPE. |
980 | ||
981 | When "smashing" the type, we preserve the objfile that the old type | |
982 | pointed to, since we aren't changing where the type is actually | |
983 | allocated. */ | |
984 | ||
985 | void | |
986 | smash_to_methodptr_type (struct type *type, struct type *to_type) | |
987 | { | |
988 | smash_type (type); | |
989 | TYPE_TARGET_TYPE (type) = to_type; | |
990 | TYPE_DOMAIN_TYPE (type) = TYPE_DOMAIN_TYPE (to_type); | |
991 | TYPE_LENGTH (type) = cplus_method_ptr_size (to_type); | |
992 | TYPE_CODE (type) = TYPE_CODE_METHODPTR; | |
993 | } | |
994 | ||
c906108c SS |
995 | /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE. |
996 | METHOD just means `function that gets an extra "this" argument'. | |
997 | ||
7ba81444 MS |
998 | When "smashing" the type, we preserve the objfile that the old type |
999 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1000 | allocated. */ |
1001 | ||
1002 | void | |
fba45db2 | 1003 | smash_to_method_type (struct type *type, struct type *domain, |
ad2f7632 DJ |
1004 | struct type *to_type, struct field *args, |
1005 | int nargs, int varargs) | |
c906108c | 1006 | { |
2fdde8f8 | 1007 | smash_type (type); |
c906108c SS |
1008 | TYPE_TARGET_TYPE (type) = to_type; |
1009 | TYPE_DOMAIN_TYPE (type) = domain; | |
ad2f7632 DJ |
1010 | TYPE_FIELDS (type) = args; |
1011 | TYPE_NFIELDS (type) = nargs; | |
1012 | if (varargs) | |
876cecd0 | 1013 | TYPE_VARARGS (type) = 1; |
c906108c SS |
1014 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
1015 | TYPE_CODE (type) = TYPE_CODE_METHOD; | |
1016 | } | |
1017 | ||
1018 | /* Return a typename for a struct/union/enum type without "struct ", | |
1019 | "union ", or "enum ". If the type has a NULL name, return NULL. */ | |
1020 | ||
1021 | char * | |
aa1ee363 | 1022 | type_name_no_tag (const struct type *type) |
c906108c SS |
1023 | { |
1024 | if (TYPE_TAG_NAME (type) != NULL) | |
1025 | return TYPE_TAG_NAME (type); | |
1026 | ||
7ba81444 MS |
1027 | /* Is there code which expects this to return the name if there is |
1028 | no tag name? My guess is that this is mainly used for C++ in | |
1029 | cases where the two will always be the same. */ | |
c906108c SS |
1030 | return TYPE_NAME (type); |
1031 | } | |
1032 | ||
7ba81444 MS |
1033 | /* Lookup a typedef or primitive type named NAME, visible in lexical |
1034 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
1035 | suitably defined. */ | |
c906108c SS |
1036 | |
1037 | struct type * | |
e6c014f2 UW |
1038 | lookup_typename (const struct language_defn *language, |
1039 | struct gdbarch *gdbarch, char *name, | |
1040 | struct block *block, int noerr) | |
c906108c | 1041 | { |
52f0bd74 AC |
1042 | struct symbol *sym; |
1043 | struct type *tmp; | |
c906108c | 1044 | |
2570f2b7 | 1045 | sym = lookup_symbol (name, block, VAR_DOMAIN, 0); |
c906108c SS |
1046 | if (sym == NULL || SYMBOL_CLASS (sym) != LOC_TYPEDEF) |
1047 | { | |
e6c014f2 | 1048 | tmp = language_lookup_primitive_type_by_name (language, gdbarch, name); |
c906108c SS |
1049 | if (tmp) |
1050 | { | |
c16abbde | 1051 | return tmp; |
c906108c SS |
1052 | } |
1053 | else if (!tmp && noerr) | |
1054 | { | |
c16abbde | 1055 | return NULL; |
c906108c SS |
1056 | } |
1057 | else | |
1058 | { | |
8a3fe4f8 | 1059 | error (_("No type named %s."), name); |
c906108c SS |
1060 | } |
1061 | } | |
1062 | return (SYMBOL_TYPE (sym)); | |
1063 | } | |
1064 | ||
1065 | struct type * | |
e6c014f2 UW |
1066 | lookup_unsigned_typename (const struct language_defn *language, |
1067 | struct gdbarch *gdbarch, char *name) | |
c906108c SS |
1068 | { |
1069 | char *uns = alloca (strlen (name) + 10); | |
1070 | ||
1071 | strcpy (uns, "unsigned "); | |
1072 | strcpy (uns + 9, name); | |
e6c014f2 | 1073 | return lookup_typename (language, gdbarch, uns, (struct block *) NULL, 0); |
c906108c SS |
1074 | } |
1075 | ||
1076 | struct type * | |
e6c014f2 UW |
1077 | lookup_signed_typename (const struct language_defn *language, |
1078 | struct gdbarch *gdbarch, char *name) | |
c906108c SS |
1079 | { |
1080 | struct type *t; | |
1081 | char *uns = alloca (strlen (name) + 8); | |
1082 | ||
1083 | strcpy (uns, "signed "); | |
1084 | strcpy (uns + 7, name); | |
e6c014f2 | 1085 | t = lookup_typename (language, gdbarch, uns, (struct block *) NULL, 1); |
7ba81444 | 1086 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
c906108c SS |
1087 | if (t != NULL) |
1088 | return t; | |
e6c014f2 | 1089 | return lookup_typename (language, gdbarch, name, (struct block *) NULL, 0); |
c906108c SS |
1090 | } |
1091 | ||
1092 | /* Lookup a structure type named "struct NAME", | |
1093 | visible in lexical block BLOCK. */ | |
1094 | ||
1095 | struct type * | |
fba45db2 | 1096 | lookup_struct (char *name, struct block *block) |
c906108c | 1097 | { |
52f0bd74 | 1098 | struct symbol *sym; |
c906108c | 1099 | |
2570f2b7 | 1100 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1101 | |
1102 | if (sym == NULL) | |
1103 | { | |
8a3fe4f8 | 1104 | error (_("No struct type named %s."), name); |
c906108c SS |
1105 | } |
1106 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1107 | { | |
7ba81444 MS |
1108 | error (_("This context has class, union or enum %s, not a struct."), |
1109 | name); | |
c906108c SS |
1110 | } |
1111 | return (SYMBOL_TYPE (sym)); | |
1112 | } | |
1113 | ||
1114 | /* Lookup a union type named "union NAME", | |
1115 | visible in lexical block BLOCK. */ | |
1116 | ||
1117 | struct type * | |
fba45db2 | 1118 | lookup_union (char *name, struct block *block) |
c906108c | 1119 | { |
52f0bd74 | 1120 | struct symbol *sym; |
c5aa993b | 1121 | struct type *t; |
c906108c | 1122 | |
2570f2b7 | 1123 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1124 | |
1125 | if (sym == NULL) | |
8a3fe4f8 | 1126 | error (_("No union type named %s."), name); |
c906108c | 1127 | |
c5aa993b | 1128 | t = SYMBOL_TYPE (sym); |
c906108c SS |
1129 | |
1130 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
c16abbde | 1131 | return t; |
c906108c | 1132 | |
7ba81444 MS |
1133 | /* If we get here, it's not a union. */ |
1134 | error (_("This context has class, struct or enum %s, not a union."), | |
1135 | name); | |
c906108c SS |
1136 | } |
1137 | ||
1138 | ||
1139 | /* Lookup an enum type named "enum NAME", | |
1140 | visible in lexical block BLOCK. */ | |
1141 | ||
1142 | struct type * | |
fba45db2 | 1143 | lookup_enum (char *name, struct block *block) |
c906108c | 1144 | { |
52f0bd74 | 1145 | struct symbol *sym; |
c906108c | 1146 | |
2570f2b7 | 1147 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1148 | if (sym == NULL) |
1149 | { | |
8a3fe4f8 | 1150 | error (_("No enum type named %s."), name); |
c906108c SS |
1151 | } |
1152 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
1153 | { | |
7ba81444 MS |
1154 | error (_("This context has class, struct or union %s, not an enum."), |
1155 | name); | |
c906108c SS |
1156 | } |
1157 | return (SYMBOL_TYPE (sym)); | |
1158 | } | |
1159 | ||
1160 | /* Lookup a template type named "template NAME<TYPE>", | |
1161 | visible in lexical block BLOCK. */ | |
1162 | ||
1163 | struct type * | |
7ba81444 MS |
1164 | lookup_template_type (char *name, struct type *type, |
1165 | struct block *block) | |
c906108c SS |
1166 | { |
1167 | struct symbol *sym; | |
7ba81444 MS |
1168 | char *nam = (char *) |
1169 | alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4); | |
c906108c SS |
1170 | strcpy (nam, name); |
1171 | strcat (nam, "<"); | |
0004e5a2 | 1172 | strcat (nam, TYPE_NAME (type)); |
7ba81444 | 1173 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1174 | |
2570f2b7 | 1175 | sym = lookup_symbol (nam, block, VAR_DOMAIN, 0); |
c906108c SS |
1176 | |
1177 | if (sym == NULL) | |
1178 | { | |
8a3fe4f8 | 1179 | error (_("No template type named %s."), name); |
c906108c SS |
1180 | } |
1181 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1182 | { | |
7ba81444 MS |
1183 | error (_("This context has class, union or enum %s, not a struct."), |
1184 | name); | |
c906108c SS |
1185 | } |
1186 | return (SYMBOL_TYPE (sym)); | |
1187 | } | |
1188 | ||
7ba81444 MS |
1189 | /* Given a type TYPE, lookup the type of the component of type named |
1190 | NAME. | |
c906108c | 1191 | |
7ba81444 MS |
1192 | TYPE can be either a struct or union, or a pointer or reference to |
1193 | a struct or union. If it is a pointer or reference, its target | |
1194 | type is automatically used. Thus '.' and '->' are interchangable, | |
1195 | as specified for the definitions of the expression element types | |
1196 | STRUCTOP_STRUCT and STRUCTOP_PTR. | |
c906108c SS |
1197 | |
1198 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
1199 | If NAME is the name of a baseclass type, return that type. */ | |
1200 | ||
1201 | struct type * | |
fba45db2 | 1202 | lookup_struct_elt_type (struct type *type, char *name, int noerr) |
c906108c SS |
1203 | { |
1204 | int i; | |
1205 | ||
1206 | for (;;) | |
1207 | { | |
1208 | CHECK_TYPEDEF (type); | |
1209 | if (TYPE_CODE (type) != TYPE_CODE_PTR | |
1210 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1211 | break; | |
1212 | type = TYPE_TARGET_TYPE (type); | |
1213 | } | |
1214 | ||
687d6395 MS |
1215 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
1216 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
c906108c SS |
1217 | { |
1218 | target_terminal_ours (); | |
1219 | gdb_flush (gdb_stdout); | |
1220 | fprintf_unfiltered (gdb_stderr, "Type "); | |
1221 | type_print (type, "", gdb_stderr, -1); | |
8a3fe4f8 | 1222 | error (_(" is not a structure or union type.")); |
c906108c SS |
1223 | } |
1224 | ||
1225 | #if 0 | |
7ba81444 MS |
1226 | /* FIXME: This change put in by Michael seems incorrect for the case |
1227 | where the structure tag name is the same as the member name. | |
1228 | I.E. when doing "ptype bell->bar" for "struct foo { int bar; int | |
1229 | foo; } bell;" Disabled by fnf. */ | |
c906108c SS |
1230 | { |
1231 | char *typename; | |
1232 | ||
1233 | typename = type_name_no_tag (type); | |
762f08a3 | 1234 | if (typename != NULL && strcmp (typename, name) == 0) |
c906108c SS |
1235 | return type; |
1236 | } | |
1237 | #endif | |
1238 | ||
1239 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1240 | { | |
1241 | char *t_field_name = TYPE_FIELD_NAME (type, i); | |
1242 | ||
db577aea | 1243 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c SS |
1244 | { |
1245 | return TYPE_FIELD_TYPE (type, i); | |
1246 | } | |
f5a010c0 PM |
1247 | else if (!t_field_name || *t_field_name == '\0') |
1248 | { | |
1249 | struct type *subtype = lookup_struct_elt_type ( | |
1250 | TYPE_FIELD_TYPE (type, i), name, 1); | |
1251 | if (subtype != NULL) | |
1252 | return subtype; | |
1253 | } | |
c906108c SS |
1254 | } |
1255 | ||
1256 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1257 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1258 | { | |
1259 | struct type *t; | |
1260 | ||
9733fc94 | 1261 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 1); |
c906108c SS |
1262 | if (t != NULL) |
1263 | { | |
1264 | return t; | |
1265 | } | |
1266 | } | |
1267 | ||
1268 | if (noerr) | |
1269 | { | |
1270 | return NULL; | |
1271 | } | |
c5aa993b | 1272 | |
c906108c SS |
1273 | target_terminal_ours (); |
1274 | gdb_flush (gdb_stdout); | |
1275 | fprintf_unfiltered (gdb_stderr, "Type "); | |
1276 | type_print (type, "", gdb_stderr, -1); | |
1277 | fprintf_unfiltered (gdb_stderr, " has no component named "); | |
1278 | fputs_filtered (name, gdb_stderr); | |
8a3fe4f8 | 1279 | error ((".")); |
c5aa993b | 1280 | return (struct type *) -1; /* For lint */ |
c906108c SS |
1281 | } |
1282 | ||
81fe8080 DE |
1283 | /* Lookup the vptr basetype/fieldno values for TYPE. |
1284 | If found store vptr_basetype in *BASETYPEP if non-NULL, and return | |
1285 | vptr_fieldno. Also, if found and basetype is from the same objfile, | |
1286 | cache the results. | |
1287 | If not found, return -1 and ignore BASETYPEP. | |
1288 | Callers should be aware that in some cases (for example, | |
c906108c | 1289 | the type or one of its baseclasses is a stub type and we are |
d48cc9dd DJ |
1290 | debugging a .o file, or the compiler uses DWARF-2 and is not GCC), |
1291 | this function will not be able to find the | |
7ba81444 | 1292 | virtual function table pointer, and vptr_fieldno will remain -1 and |
81fe8080 | 1293 | vptr_basetype will remain NULL or incomplete. */ |
c906108c | 1294 | |
81fe8080 DE |
1295 | int |
1296 | get_vptr_fieldno (struct type *type, struct type **basetypep) | |
c906108c SS |
1297 | { |
1298 | CHECK_TYPEDEF (type); | |
1299 | ||
1300 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1301 | { | |
1302 | int i; | |
1303 | ||
7ba81444 MS |
1304 | /* We must start at zero in case the first (and only) baseclass |
1305 | is virtual (and hence we cannot share the table pointer). */ | |
c906108c SS |
1306 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1307 | { | |
81fe8080 DE |
1308 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
1309 | int fieldno; | |
1310 | struct type *basetype; | |
1311 | ||
1312 | fieldno = get_vptr_fieldno (baseclass, &basetype); | |
1313 | if (fieldno >= 0) | |
c906108c | 1314 | { |
81fe8080 DE |
1315 | /* If the type comes from a different objfile we can't cache |
1316 | it, it may have a different lifetime. PR 2384 */ | |
5ef73790 | 1317 | if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype)) |
81fe8080 DE |
1318 | { |
1319 | TYPE_VPTR_FIELDNO (type) = fieldno; | |
1320 | TYPE_VPTR_BASETYPE (type) = basetype; | |
1321 | } | |
1322 | if (basetypep) | |
1323 | *basetypep = basetype; | |
1324 | return fieldno; | |
c906108c SS |
1325 | } |
1326 | } | |
81fe8080 DE |
1327 | |
1328 | /* Not found. */ | |
1329 | return -1; | |
1330 | } | |
1331 | else | |
1332 | { | |
1333 | if (basetypep) | |
1334 | *basetypep = TYPE_VPTR_BASETYPE (type); | |
1335 | return TYPE_VPTR_FIELDNO (type); | |
c906108c SS |
1336 | } |
1337 | } | |
1338 | ||
44e1a9eb DJ |
1339 | static void |
1340 | stub_noname_complaint (void) | |
1341 | { | |
e2e0b3e5 | 1342 | complaint (&symfile_complaints, _("stub type has NULL name")); |
44e1a9eb DJ |
1343 | } |
1344 | ||
c906108c SS |
1345 | /* Added by Bryan Boreham, Kewill, Sun Sep 17 18:07:17 1989. |
1346 | ||
1347 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
1348 | we can find a full definition in some other file. If so, copy this | |
7ba81444 MS |
1349 | definition, so we can use it in future. There used to be a comment |
1350 | (but not any code) that if we don't find a full definition, we'd | |
1351 | set a flag so we don't spend time in the future checking the same | |
1352 | type. That would be a mistake, though--we might load in more | |
1353 | symbols which contain a full definition for the type. | |
c906108c | 1354 | |
7b83ea04 | 1355 | This used to be coded as a macro, but I don't think it is called |
c54eabfa | 1356 | often enough to merit such treatment. |
c906108c | 1357 | |
c54eabfa | 1358 | Find the real type of TYPE. This function returns the real type, |
7ba81444 MS |
1359 | after removing all layers of typedefs and completing opaque or stub |
1360 | types. Completion changes the TYPE argument, but stripping of | |
c54eabfa JK |
1361 | typedefs does not. |
1362 | ||
1363 | If TYPE is a TYPE_CODE_TYPEDEF, its length is (also) set to the length of | |
1364 | the target type instead of zero. However, in the case of TYPE_CODE_TYPEDEF | |
1365 | check_typedef can still return different type than the original TYPE | |
1366 | pointer. */ | |
c906108c SS |
1367 | |
1368 | struct type * | |
a02fd225 | 1369 | check_typedef (struct type *type) |
c906108c SS |
1370 | { |
1371 | struct type *orig_type = type; | |
a02fd225 DJ |
1372 | int is_const, is_volatile; |
1373 | ||
423c0af8 MS |
1374 | gdb_assert (type); |
1375 | ||
c906108c SS |
1376 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
1377 | { | |
1378 | if (!TYPE_TARGET_TYPE (type)) | |
1379 | { | |
c5aa993b | 1380 | char *name; |
c906108c SS |
1381 | struct symbol *sym; |
1382 | ||
1383 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 1384 | reading a symtab. Infinite recursion is one danger. */ |
c906108c SS |
1385 | if (currently_reading_symtab) |
1386 | return type; | |
1387 | ||
1388 | name = type_name_no_tag (type); | |
7ba81444 MS |
1389 | /* FIXME: shouldn't we separately check the TYPE_NAME and |
1390 | the TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or | |
1391 | VAR_DOMAIN as appropriate? (this code was written before | |
1392 | TYPE_NAME and TYPE_TAG_NAME were separate). */ | |
c906108c SS |
1393 | if (name == NULL) |
1394 | { | |
23136709 | 1395 | stub_noname_complaint (); |
c906108c SS |
1396 | return type; |
1397 | } | |
2570f2b7 | 1398 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0); |
c906108c SS |
1399 | if (sym) |
1400 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
7ba81444 | 1401 | else /* TYPE_CODE_UNDEF */ |
e9bb382b | 1402 | TYPE_TARGET_TYPE (type) = alloc_type_arch (get_type_arch (type)); |
c906108c SS |
1403 | } |
1404 | type = TYPE_TARGET_TYPE (type); | |
1405 | } | |
1406 | ||
a02fd225 DJ |
1407 | is_const = TYPE_CONST (type); |
1408 | is_volatile = TYPE_VOLATILE (type); | |
1409 | ||
7ba81444 MS |
1410 | /* If this is a struct/class/union with no fields, then check |
1411 | whether a full definition exists somewhere else. This is for | |
1412 | systems where a type definition with no fields is issued for such | |
1413 | types, instead of identifying them as stub types in the first | |
1414 | place. */ | |
c5aa993b | 1415 | |
7ba81444 MS |
1416 | if (TYPE_IS_OPAQUE (type) |
1417 | && opaque_type_resolution | |
1418 | && !currently_reading_symtab) | |
c906108c | 1419 | { |
c5aa993b JM |
1420 | char *name = type_name_no_tag (type); |
1421 | struct type *newtype; | |
c906108c SS |
1422 | if (name == NULL) |
1423 | { | |
23136709 | 1424 | stub_noname_complaint (); |
c906108c SS |
1425 | return type; |
1426 | } | |
1427 | newtype = lookup_transparent_type (name); | |
ad766c0a | 1428 | |
c906108c | 1429 | if (newtype) |
ad766c0a | 1430 | { |
7ba81444 MS |
1431 | /* If the resolved type and the stub are in the same |
1432 | objfile, then replace the stub type with the real deal. | |
1433 | But if they're in separate objfiles, leave the stub | |
1434 | alone; we'll just look up the transparent type every time | |
1435 | we call check_typedef. We can't create pointers between | |
1436 | types allocated to different objfiles, since they may | |
1437 | have different lifetimes. Trying to copy NEWTYPE over to | |
1438 | TYPE's objfile is pointless, too, since you'll have to | |
1439 | move over any other types NEWTYPE refers to, which could | |
1440 | be an unbounded amount of stuff. */ | |
ad766c0a JB |
1441 | if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
1442 | make_cv_type (is_const, is_volatile, newtype, &type); | |
1443 | else | |
1444 | type = newtype; | |
1445 | } | |
c906108c | 1446 | } |
7ba81444 MS |
1447 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
1448 | types. */ | |
74a9bb82 | 1449 | else if (TYPE_STUB (type) && !currently_reading_symtab) |
c906108c | 1450 | { |
c5aa993b | 1451 | char *name = type_name_no_tag (type); |
c906108c | 1452 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
176620f1 | 1453 | TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or VAR_DOMAIN |
7b83ea04 AC |
1454 | as appropriate? (this code was written before TYPE_NAME and |
1455 | TYPE_TAG_NAME were separate). */ | |
c906108c SS |
1456 | struct symbol *sym; |
1457 | if (name == NULL) | |
1458 | { | |
23136709 | 1459 | stub_noname_complaint (); |
c906108c SS |
1460 | return type; |
1461 | } | |
2570f2b7 | 1462 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0); |
c906108c | 1463 | if (sym) |
c26f2453 JB |
1464 | { |
1465 | /* Same as above for opaque types, we can replace the stub | |
1466 | with the complete type only if they are int the same | |
1467 | objfile. */ | |
1468 | if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type)) | |
7ba81444 MS |
1469 | make_cv_type (is_const, is_volatile, |
1470 | SYMBOL_TYPE (sym), &type); | |
c26f2453 JB |
1471 | else |
1472 | type = SYMBOL_TYPE (sym); | |
1473 | } | |
c906108c SS |
1474 | } |
1475 | ||
74a9bb82 | 1476 | if (TYPE_TARGET_STUB (type)) |
c906108c SS |
1477 | { |
1478 | struct type *range_type; | |
1479 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1480 | ||
74a9bb82 | 1481 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
c5aa993b | 1482 | { |
7ba81444 | 1483 | /* Empty. */ |
c5aa993b | 1484 | } |
c906108c SS |
1485 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY |
1486 | && TYPE_NFIELDS (type) == 1 | |
262452ec | 1487 | && (TYPE_CODE (range_type = TYPE_INDEX_TYPE (type)) |
c906108c SS |
1488 | == TYPE_CODE_RANGE)) |
1489 | { | |
1490 | /* Now recompute the length of the array type, based on its | |
ab0d6e0d JB |
1491 | number of elements and the target type's length. |
1492 | Watch out for Ada null Ada arrays where the high bound | |
43bbcdc2 PH |
1493 | is smaller than the low bound. */ |
1494 | const LONGEST low_bound = TYPE_LOW_BOUND (range_type); | |
1495 | const LONGEST high_bound = TYPE_HIGH_BOUND (range_type); | |
1496 | ULONGEST len; | |
1497 | ||
ab0d6e0d | 1498 | if (high_bound < low_bound) |
43bbcdc2 PH |
1499 | len = 0; |
1500 | else { | |
1501 | /* For now, we conservatively take the array length to be 0 | |
1502 | if its length exceeds UINT_MAX. The code below assumes | |
1503 | that for x < 0, (ULONGEST) x == -x + ULONGEST_MAX + 1, | |
1504 | which is technically not guaranteed by C, but is usually true | |
1505 | (because it would be true if x were unsigned with its | |
1506 | high-order bit on). It uses the fact that | |
1507 | high_bound-low_bound is always representable in | |
1508 | ULONGEST and that if high_bound-low_bound+1 overflows, | |
1509 | it overflows to 0. We must change these tests if we | |
1510 | decide to increase the representation of TYPE_LENGTH | |
1511 | from unsigned int to ULONGEST. */ | |
1512 | ULONGEST ulow = low_bound, uhigh = high_bound; | |
1513 | ULONGEST tlen = TYPE_LENGTH (target_type); | |
1514 | ||
1515 | len = tlen * (uhigh - ulow + 1); | |
1516 | if (tlen == 0 || (len / tlen - 1 + ulow) != uhigh | |
1517 | || len > UINT_MAX) | |
1518 | len = 0; | |
1519 | } | |
1520 | TYPE_LENGTH (type) = len; | |
876cecd0 | 1521 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
1522 | } |
1523 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) | |
1524 | { | |
1525 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
876cecd0 | 1526 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
1527 | } |
1528 | } | |
7ba81444 | 1529 | /* Cache TYPE_LENGTH for future use. */ |
c906108c SS |
1530 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
1531 | return type; | |
1532 | } | |
1533 | ||
7ba81444 | 1534 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
48319d1f | 1535 | occurs, silently return a void type. */ |
c91ecb25 | 1536 | |
b9362cc7 | 1537 | static struct type * |
48319d1f | 1538 | safe_parse_type (struct gdbarch *gdbarch, char *p, int length) |
c91ecb25 ND |
1539 | { |
1540 | struct ui_file *saved_gdb_stderr; | |
1541 | struct type *type; | |
1542 | ||
7ba81444 | 1543 | /* Suppress error messages. */ |
c91ecb25 ND |
1544 | saved_gdb_stderr = gdb_stderr; |
1545 | gdb_stderr = ui_file_new (); | |
1546 | ||
7ba81444 | 1547 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
c91ecb25 | 1548 | if (!gdb_parse_and_eval_type (p, length, &type)) |
48319d1f | 1549 | type = builtin_type (gdbarch)->builtin_void; |
c91ecb25 | 1550 | |
7ba81444 | 1551 | /* Stop suppressing error messages. */ |
c91ecb25 ND |
1552 | ui_file_delete (gdb_stderr); |
1553 | gdb_stderr = saved_gdb_stderr; | |
1554 | ||
1555 | return type; | |
1556 | } | |
1557 | ||
c906108c SS |
1558 | /* Ugly hack to convert method stubs into method types. |
1559 | ||
7ba81444 MS |
1560 | He ain't kiddin'. This demangles the name of the method into a |
1561 | string including argument types, parses out each argument type, | |
1562 | generates a string casting a zero to that type, evaluates the | |
1563 | string, and stuffs the resulting type into an argtype vector!!! | |
1564 | Then it knows the type of the whole function (including argument | |
1565 | types for overloading), which info used to be in the stab's but was | |
1566 | removed to hack back the space required for them. */ | |
c906108c | 1567 | |
de17c821 | 1568 | static void |
fba45db2 | 1569 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c | 1570 | { |
50810684 | 1571 | struct gdbarch *gdbarch = get_type_arch (type); |
c906108c SS |
1572 | struct fn_field *f; |
1573 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
1574 | char *demangled_name = cplus_demangle (mangled_name, | |
1575 | DMGL_PARAMS | DMGL_ANSI); | |
1576 | char *argtypetext, *p; | |
1577 | int depth = 0, argcount = 1; | |
ad2f7632 | 1578 | struct field *argtypes; |
c906108c SS |
1579 | struct type *mtype; |
1580 | ||
1581 | /* Make sure we got back a function string that we can use. */ | |
1582 | if (demangled_name) | |
1583 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
1584 | else |
1585 | p = NULL; | |
c906108c SS |
1586 | |
1587 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
1588 | error (_("Internal: Cannot demangle mangled name `%s'."), |
1589 | mangled_name); | |
c906108c SS |
1590 | |
1591 | /* Now, read in the parameters that define this type. */ | |
1592 | p += 1; | |
1593 | argtypetext = p; | |
1594 | while (*p) | |
1595 | { | |
070ad9f0 | 1596 | if (*p == '(' || *p == '<') |
c906108c SS |
1597 | { |
1598 | depth += 1; | |
1599 | } | |
070ad9f0 | 1600 | else if (*p == ')' || *p == '>') |
c906108c SS |
1601 | { |
1602 | depth -= 1; | |
1603 | } | |
1604 | else if (*p == ',' && depth == 0) | |
1605 | { | |
1606 | argcount += 1; | |
1607 | } | |
1608 | ||
1609 | p += 1; | |
1610 | } | |
1611 | ||
ad2f7632 DJ |
1612 | /* If we read one argument and it was ``void'', don't count it. */ |
1613 | if (strncmp (argtypetext, "(void)", 6) == 0) | |
1614 | argcount -= 1; | |
c906108c | 1615 | |
ad2f7632 DJ |
1616 | /* We need one extra slot, for the THIS pointer. */ |
1617 | ||
1618 | argtypes = (struct field *) | |
1619 | TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); | |
c906108c | 1620 | p = argtypetext; |
4a1970e4 DJ |
1621 | |
1622 | /* Add THIS pointer for non-static methods. */ | |
1623 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
1624 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
1625 | argcount = 0; | |
1626 | else | |
1627 | { | |
ad2f7632 | 1628 | argtypes[0].type = lookup_pointer_type (type); |
4a1970e4 DJ |
1629 | argcount = 1; |
1630 | } | |
c906108c | 1631 | |
c5aa993b | 1632 | if (*p != ')') /* () means no args, skip while */ |
c906108c SS |
1633 | { |
1634 | depth = 0; | |
1635 | while (*p) | |
1636 | { | |
1637 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
1638 | { | |
ad2f7632 DJ |
1639 | /* Avoid parsing of ellipsis, they will be handled below. |
1640 | Also avoid ``void'' as above. */ | |
1641 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 | |
1642 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 1643 | { |
ad2f7632 | 1644 | argtypes[argcount].type = |
48319d1f | 1645 | safe_parse_type (gdbarch, argtypetext, p - argtypetext); |
c906108c SS |
1646 | argcount += 1; |
1647 | } | |
1648 | argtypetext = p + 1; | |
1649 | } | |
1650 | ||
070ad9f0 | 1651 | if (*p == '(' || *p == '<') |
c906108c SS |
1652 | { |
1653 | depth += 1; | |
1654 | } | |
070ad9f0 | 1655 | else if (*p == ')' || *p == '>') |
c906108c SS |
1656 | { |
1657 | depth -= 1; | |
1658 | } | |
1659 | ||
1660 | p += 1; | |
1661 | } | |
1662 | } | |
1663 | ||
c906108c SS |
1664 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
1665 | ||
1666 | /* Now update the old "stub" type into a real type. */ | |
1667 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
1668 | TYPE_DOMAIN_TYPE (mtype) = type; | |
ad2f7632 DJ |
1669 | TYPE_FIELDS (mtype) = argtypes; |
1670 | TYPE_NFIELDS (mtype) = argcount; | |
876cecd0 | 1671 | TYPE_STUB (mtype) = 0; |
c906108c | 1672 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
ad2f7632 | 1673 | if (p[-2] == '.') |
876cecd0 | 1674 | TYPE_VARARGS (mtype) = 1; |
ad2f7632 DJ |
1675 | |
1676 | xfree (demangled_name); | |
c906108c SS |
1677 | } |
1678 | ||
7ba81444 MS |
1679 | /* This is the external interface to check_stub_method, above. This |
1680 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
1681 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
1682 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
1683 | correct. | |
de17c821 DJ |
1684 | |
1685 | This function unfortunately can not die until stabs do. */ | |
1686 | ||
1687 | void | |
1688 | check_stub_method_group (struct type *type, int method_id) | |
1689 | { | |
1690 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
1691 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
f710f4fc | 1692 | int j, found_stub = 0; |
de17c821 DJ |
1693 | |
1694 | for (j = 0; j < len; j++) | |
1695 | if (TYPE_FN_FIELD_STUB (f, j)) | |
1696 | { | |
1697 | found_stub = 1; | |
1698 | check_stub_method (type, method_id, j); | |
1699 | } | |
1700 | ||
7ba81444 MS |
1701 | /* GNU v3 methods with incorrect names were corrected when we read |
1702 | in type information, because it was cheaper to do it then. The | |
1703 | only GNU v2 methods with incorrect method names are operators and | |
1704 | destructors; destructors were also corrected when we read in type | |
1705 | information. | |
de17c821 DJ |
1706 | |
1707 | Therefore the only thing we need to handle here are v2 operator | |
1708 | names. */ | |
1709 | if (found_stub && strncmp (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z", 2) != 0) | |
1710 | { | |
1711 | int ret; | |
1712 | char dem_opname[256]; | |
1713 | ||
7ba81444 MS |
1714 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
1715 | method_id), | |
de17c821 DJ |
1716 | dem_opname, DMGL_ANSI); |
1717 | if (!ret) | |
7ba81444 MS |
1718 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
1719 | method_id), | |
de17c821 DJ |
1720 | dem_opname, 0); |
1721 | if (ret) | |
1722 | TYPE_FN_FIELDLIST_NAME (type, method_id) = xstrdup (dem_opname); | |
1723 | } | |
1724 | } | |
1725 | ||
c906108c SS |
1726 | const struct cplus_struct_type cplus_struct_default; |
1727 | ||
1728 | void | |
fba45db2 | 1729 | allocate_cplus_struct_type (struct type *type) |
c906108c | 1730 | { |
b4ba55a1 JB |
1731 | if (HAVE_CPLUS_STRUCT (type)) |
1732 | /* Structure was already allocated. Nothing more to do. */ | |
1733 | return; | |
1734 | ||
1735 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF; | |
1736 | TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
1737 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
1738 | *(TYPE_RAW_CPLUS_SPECIFIC (type)) = cplus_struct_default; | |
c906108c SS |
1739 | } |
1740 | ||
b4ba55a1 JB |
1741 | const struct gnat_aux_type gnat_aux_default = |
1742 | { NULL }; | |
1743 | ||
1744 | /* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF, | |
1745 | and allocate the associated gnat-specific data. The gnat-specific | |
1746 | data is also initialized to gnat_aux_default. */ | |
1747 | void | |
1748 | allocate_gnat_aux_type (struct type *type) | |
1749 | { | |
1750 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF; | |
1751 | TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) | |
1752 | TYPE_ALLOC (type, sizeof (struct gnat_aux_type)); | |
1753 | *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default; | |
1754 | } | |
1755 | ||
1756 | ||
c906108c SS |
1757 | /* Helper function to initialize the standard scalar types. |
1758 | ||
e9bb382b UW |
1759 | If NAME is non-NULL, then we make a copy of the string pointed |
1760 | to by name in the objfile_obstack for that objfile, and initialize | |
1761 | the type name to that copy. There are places (mipsread.c in particular), | |
1762 | where init_type is called with a NULL value for NAME). */ | |
c906108c SS |
1763 | |
1764 | struct type * | |
7ba81444 MS |
1765 | init_type (enum type_code code, int length, int flags, |
1766 | char *name, struct objfile *objfile) | |
c906108c | 1767 | { |
52f0bd74 | 1768 | struct type *type; |
c906108c SS |
1769 | |
1770 | type = alloc_type (objfile); | |
1771 | TYPE_CODE (type) = code; | |
1772 | TYPE_LENGTH (type) = length; | |
876cecd0 TT |
1773 | |
1774 | gdb_assert (!(flags & (TYPE_FLAG_MIN - 1))); | |
1775 | if (flags & TYPE_FLAG_UNSIGNED) | |
1776 | TYPE_UNSIGNED (type) = 1; | |
1777 | if (flags & TYPE_FLAG_NOSIGN) | |
1778 | TYPE_NOSIGN (type) = 1; | |
1779 | if (flags & TYPE_FLAG_STUB) | |
1780 | TYPE_STUB (type) = 1; | |
1781 | if (flags & TYPE_FLAG_TARGET_STUB) | |
1782 | TYPE_TARGET_STUB (type) = 1; | |
1783 | if (flags & TYPE_FLAG_STATIC) | |
1784 | TYPE_STATIC (type) = 1; | |
1785 | if (flags & TYPE_FLAG_PROTOTYPED) | |
1786 | TYPE_PROTOTYPED (type) = 1; | |
1787 | if (flags & TYPE_FLAG_INCOMPLETE) | |
1788 | TYPE_INCOMPLETE (type) = 1; | |
1789 | if (flags & TYPE_FLAG_VARARGS) | |
1790 | TYPE_VARARGS (type) = 1; | |
1791 | if (flags & TYPE_FLAG_VECTOR) | |
1792 | TYPE_VECTOR (type) = 1; | |
1793 | if (flags & TYPE_FLAG_STUB_SUPPORTED) | |
1794 | TYPE_STUB_SUPPORTED (type) = 1; | |
1795 | if (flags & TYPE_FLAG_NOTTEXT) | |
1796 | TYPE_NOTTEXT (type) = 1; | |
1797 | if (flags & TYPE_FLAG_FIXED_INSTANCE) | |
1798 | TYPE_FIXED_INSTANCE (type) = 1; | |
1799 | ||
e9bb382b UW |
1800 | if (name) |
1801 | TYPE_NAME (type) = obsavestring (name, strlen (name), | |
1802 | &objfile->objfile_obstack); | |
c906108c SS |
1803 | |
1804 | /* C++ fancies. */ | |
1805 | ||
973ccf8b | 1806 | if (name && strcmp (name, "char") == 0) |
876cecd0 | 1807 | TYPE_NOSIGN (type) = 1; |
973ccf8b | 1808 | |
b4ba55a1 | 1809 | switch (code) |
c906108c | 1810 | { |
b4ba55a1 JB |
1811 | case TYPE_CODE_STRUCT: |
1812 | case TYPE_CODE_UNION: | |
1813 | case TYPE_CODE_NAMESPACE: | |
1814 | INIT_CPLUS_SPECIFIC (type); | |
1815 | break; | |
1816 | case TYPE_CODE_FLT: | |
1817 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT; | |
1818 | break; | |
1819 | case TYPE_CODE_FUNC: | |
1820 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CALLING_CONVENTION; | |
1821 | break; | |
c906108c | 1822 | } |
c16abbde | 1823 | return type; |
c906108c SS |
1824 | } |
1825 | ||
c906108c | 1826 | int |
fba45db2 | 1827 | can_dereference (struct type *t) |
c906108c | 1828 | { |
7ba81444 MS |
1829 | /* FIXME: Should we return true for references as well as |
1830 | pointers? */ | |
c906108c SS |
1831 | CHECK_TYPEDEF (t); |
1832 | return | |
1833 | (t != NULL | |
1834 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
1835 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
1836 | } | |
1837 | ||
adf40b2e | 1838 | int |
fba45db2 | 1839 | is_integral_type (struct type *t) |
adf40b2e JM |
1840 | { |
1841 | CHECK_TYPEDEF (t); | |
1842 | return | |
1843 | ((t != NULL) | |
d4f3574e SS |
1844 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
1845 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
4f2aea11 | 1846 | || (TYPE_CODE (t) == TYPE_CODE_FLAGS) |
d4f3574e SS |
1847 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) |
1848 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
1849 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
1850 | } |
1851 | ||
4e8f195d TT |
1852 | /* A helper function which returns true if types A and B represent the |
1853 | "same" class type. This is true if the types have the same main | |
1854 | type, or the same name. */ | |
1855 | ||
1856 | int | |
1857 | class_types_same_p (const struct type *a, const struct type *b) | |
1858 | { | |
1859 | return (TYPE_MAIN_TYPE (a) == TYPE_MAIN_TYPE (b) | |
1860 | || (TYPE_NAME (a) && TYPE_NAME (b) | |
1861 | && !strcmp (TYPE_NAME (a), TYPE_NAME (b)))); | |
1862 | } | |
1863 | ||
7b83ea04 | 1864 | /* Check whether BASE is an ancestor or base class or DCLASS |
c906108c SS |
1865 | Return 1 if so, and 0 if not. |
1866 | Note: callers may want to check for identity of the types before | |
1867 | calling this function -- identical types are considered to satisfy | |
7ba81444 | 1868 | the ancestor relationship even if they're identical. */ |
c906108c SS |
1869 | |
1870 | int | |
fba45db2 | 1871 | is_ancestor (struct type *base, struct type *dclass) |
c906108c SS |
1872 | { |
1873 | int i; | |
c5aa993b | 1874 | |
c906108c SS |
1875 | CHECK_TYPEDEF (base); |
1876 | CHECK_TYPEDEF (dclass); | |
1877 | ||
4e8f195d | 1878 | if (class_types_same_p (base, dclass)) |
6b1ba9a0 | 1879 | return 1; |
c906108c SS |
1880 | |
1881 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
4e8f195d TT |
1882 | { |
1883 | if (is_ancestor (base, TYPE_BASECLASS (dclass, i))) | |
1884 | return 1; | |
1885 | } | |
c906108c SS |
1886 | |
1887 | return 0; | |
1888 | } | |
4e8f195d TT |
1889 | |
1890 | /* Like is_ancestor, but only returns true when BASE is a public | |
1891 | ancestor of DCLASS. */ | |
1892 | ||
1893 | int | |
1894 | is_public_ancestor (struct type *base, struct type *dclass) | |
1895 | { | |
1896 | int i; | |
1897 | ||
1898 | CHECK_TYPEDEF (base); | |
1899 | CHECK_TYPEDEF (dclass); | |
1900 | ||
1901 | if (class_types_same_p (base, dclass)) | |
1902 | return 1; | |
1903 | ||
1904 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); ++i) | |
1905 | { | |
1906 | if (! BASETYPE_VIA_PUBLIC (dclass, i)) | |
1907 | continue; | |
1908 | if (is_public_ancestor (base, TYPE_BASECLASS (dclass, i))) | |
1909 | return 1; | |
1910 | } | |
1911 | ||
1912 | return 0; | |
1913 | } | |
1914 | ||
1915 | /* A helper function for is_unique_ancestor. */ | |
1916 | ||
1917 | static int | |
1918 | is_unique_ancestor_worker (struct type *base, struct type *dclass, | |
1919 | int *offset, | |
1920 | const bfd_byte *contents, CORE_ADDR address) | |
1921 | { | |
1922 | int i, count = 0; | |
1923 | ||
1924 | CHECK_TYPEDEF (base); | |
1925 | CHECK_TYPEDEF (dclass); | |
1926 | ||
1927 | for (i = 0; i < TYPE_N_BASECLASSES (dclass) && count < 2; ++i) | |
1928 | { | |
1929 | struct type *iter = check_typedef (TYPE_BASECLASS (dclass, i)); | |
1930 | int this_offset = baseclass_offset (dclass, i, contents, address); | |
1931 | ||
1932 | if (this_offset == -1) | |
1933 | error (_("virtual baseclass botch")); | |
1934 | ||
1935 | if (class_types_same_p (base, iter)) | |
1936 | { | |
1937 | /* If this is the first subclass, set *OFFSET and set count | |
1938 | to 1. Otherwise, if this is at the same offset as | |
1939 | previous instances, do nothing. Otherwise, increment | |
1940 | count. */ | |
1941 | if (*offset == -1) | |
1942 | { | |
1943 | *offset = this_offset; | |
1944 | count = 1; | |
1945 | } | |
1946 | else if (this_offset == *offset) | |
1947 | { | |
1948 | /* Nothing. */ | |
1949 | } | |
1950 | else | |
1951 | ++count; | |
1952 | } | |
1953 | else | |
1954 | count += is_unique_ancestor_worker (base, iter, offset, | |
1955 | contents + this_offset, | |
1956 | address + this_offset); | |
1957 | } | |
1958 | ||
1959 | return count; | |
1960 | } | |
1961 | ||
1962 | /* Like is_ancestor, but only returns true if BASE is a unique base | |
1963 | class of the type of VAL. */ | |
1964 | ||
1965 | int | |
1966 | is_unique_ancestor (struct type *base, struct value *val) | |
1967 | { | |
1968 | int offset = -1; | |
1969 | ||
1970 | return is_unique_ancestor_worker (base, value_type (val), &offset, | |
1971 | value_contents (val), | |
1972 | value_address (val)) == 1; | |
1973 | } | |
1974 | ||
c906108c SS |
1975 | \f |
1976 | ||
c5aa993b | 1977 | |
c906108c SS |
1978 | /* Functions for overload resolution begin here */ |
1979 | ||
1980 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
1981 | 0 => A and B are identical |
1982 | 1 => A and B are incomparable | |
1983 | 2 => A is better than B | |
1984 | 3 => A is worse than B */ | |
c906108c SS |
1985 | |
1986 | int | |
fba45db2 | 1987 | compare_badness (struct badness_vector *a, struct badness_vector *b) |
c906108c SS |
1988 | { |
1989 | int i; | |
1990 | int tmp; | |
c5aa993b JM |
1991 | short found_pos = 0; /* any positives in c? */ |
1992 | short found_neg = 0; /* any negatives in c? */ | |
1993 | ||
1994 | /* differing lengths => incomparable */ | |
c906108c SS |
1995 | if (a->length != b->length) |
1996 | return 1; | |
1997 | ||
c5aa993b JM |
1998 | /* Subtract b from a */ |
1999 | for (i = 0; i < a->length; i++) | |
c906108c SS |
2000 | { |
2001 | tmp = a->rank[i] - b->rank[i]; | |
2002 | if (tmp > 0) | |
c5aa993b | 2003 | found_pos = 1; |
c906108c | 2004 | else if (tmp < 0) |
c5aa993b | 2005 | found_neg = 1; |
c906108c SS |
2006 | } |
2007 | ||
2008 | if (found_pos) | |
2009 | { | |
2010 | if (found_neg) | |
c5aa993b | 2011 | return 1; /* incomparable */ |
c906108c | 2012 | else |
c5aa993b | 2013 | return 3; /* A > B */ |
c906108c | 2014 | } |
c5aa993b JM |
2015 | else |
2016 | /* no positives */ | |
c906108c SS |
2017 | { |
2018 | if (found_neg) | |
c5aa993b | 2019 | return 2; /* A < B */ |
c906108c | 2020 | else |
c5aa993b | 2021 | return 0; /* A == B */ |
c906108c SS |
2022 | } |
2023 | } | |
2024 | ||
7ba81444 MS |
2025 | /* Rank a function by comparing its parameter types (PARMS, length |
2026 | NPARMS), to the types of an argument list (ARGS, length NARGS). | |
2027 | Return a pointer to a badness vector. This has NARGS + 1 | |
2028 | entries. */ | |
c906108c SS |
2029 | |
2030 | struct badness_vector * | |
7ba81444 MS |
2031 | rank_function (struct type **parms, int nparms, |
2032 | struct type **args, int nargs) | |
c906108c SS |
2033 | { |
2034 | int i; | |
c5aa993b | 2035 | struct badness_vector *bv; |
c906108c SS |
2036 | int min_len = nparms < nargs ? nparms : nargs; |
2037 | ||
2038 | bv = xmalloc (sizeof (struct badness_vector)); | |
c5aa993b | 2039 | bv->length = nargs + 1; /* add 1 for the length-match rank */ |
c906108c SS |
2040 | bv->rank = xmalloc ((nargs + 1) * sizeof (int)); |
2041 | ||
2042 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 2043 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 2044 | |
c906108c | 2045 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
2046 | arguments and ellipsis parameter lists, we should consider those |
2047 | and rank the length-match more finely. */ | |
c906108c SS |
2048 | |
2049 | LENGTH_MATCH (bv) = (nargs != nparms) ? LENGTH_MISMATCH_BADNESS : 0; | |
2050 | ||
2051 | /* Now rank all the parameters of the candidate function */ | |
74cc24b0 DB |
2052 | for (i = 1; i <= min_len; i++) |
2053 | bv->rank[i] = rank_one_type (parms[i-1], args[i-1]); | |
c906108c | 2054 | |
c5aa993b JM |
2055 | /* If more arguments than parameters, add dummy entries */ |
2056 | for (i = min_len + 1; i <= nargs; i++) | |
c906108c SS |
2057 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
2058 | ||
2059 | return bv; | |
2060 | } | |
2061 | ||
973ccf8b DJ |
2062 | /* Compare the names of two integer types, assuming that any sign |
2063 | qualifiers have been checked already. We do it this way because | |
2064 | there may be an "int" in the name of one of the types. */ | |
2065 | ||
2066 | static int | |
2067 | integer_types_same_name_p (const char *first, const char *second) | |
2068 | { | |
2069 | int first_p, second_p; | |
2070 | ||
7ba81444 MS |
2071 | /* If both are shorts, return 1; if neither is a short, keep |
2072 | checking. */ | |
973ccf8b DJ |
2073 | first_p = (strstr (first, "short") != NULL); |
2074 | second_p = (strstr (second, "short") != NULL); | |
2075 | if (first_p && second_p) | |
2076 | return 1; | |
2077 | if (first_p || second_p) | |
2078 | return 0; | |
2079 | ||
2080 | /* Likewise for long. */ | |
2081 | first_p = (strstr (first, "long") != NULL); | |
2082 | second_p = (strstr (second, "long") != NULL); | |
2083 | if (first_p && second_p) | |
2084 | return 1; | |
2085 | if (first_p || second_p) | |
2086 | return 0; | |
2087 | ||
2088 | /* Likewise for char. */ | |
2089 | first_p = (strstr (first, "char") != NULL); | |
2090 | second_p = (strstr (second, "char") != NULL); | |
2091 | if (first_p && second_p) | |
2092 | return 1; | |
2093 | if (first_p || second_p) | |
2094 | return 0; | |
2095 | ||
2096 | /* They must both be ints. */ | |
2097 | return 1; | |
2098 | } | |
2099 | ||
c906108c SS |
2100 | /* Compare one type (PARM) for compatibility with another (ARG). |
2101 | * PARM is intended to be the parameter type of a function; and | |
2102 | * ARG is the supplied argument's type. This function tests if | |
2103 | * the latter can be converted to the former. | |
2104 | * | |
2105 | * Return 0 if they are identical types; | |
2106 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 MS |
2107 | * PARM is to ARG. The higher the return value, the worse the match. |
2108 | * Generally the "bad" conversions are all uniformly assigned a 100. */ | |
c906108c SS |
2109 | |
2110 | int | |
fba45db2 | 2111 | rank_one_type (struct type *parm, struct type *arg) |
c906108c | 2112 | { |
7ba81444 | 2113 | /* Identical type pointers. */ |
c906108c | 2114 | /* However, this still doesn't catch all cases of same type for arg |
7ba81444 MS |
2115 | and param. The reason is that builtin types are different from |
2116 | the same ones constructed from the object. */ | |
c906108c SS |
2117 | if (parm == arg) |
2118 | return 0; | |
2119 | ||
2120 | /* Resolve typedefs */ | |
2121 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
2122 | parm = check_typedef (parm); | |
2123 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
2124 | arg = check_typedef (arg); | |
2125 | ||
070ad9f0 | 2126 | /* |
7ba81444 MS |
2127 | Well, damnit, if the names are exactly the same, I'll say they |
2128 | are exactly the same. This happens when we generate method | |
2129 | stubs. The types won't point to the same address, but they | |
070ad9f0 DB |
2130 | really are the same. |
2131 | */ | |
2132 | ||
687d6395 MS |
2133 | if (TYPE_NAME (parm) && TYPE_NAME (arg) |
2134 | && !strcmp (TYPE_NAME (parm), TYPE_NAME (arg))) | |
7ba81444 | 2135 | return 0; |
070ad9f0 | 2136 | |
7ba81444 | 2137 | /* Check if identical after resolving typedefs. */ |
c906108c SS |
2138 | if (parm == arg) |
2139 | return 0; | |
2140 | ||
db577aea | 2141 | /* See through references, since we can almost make non-references |
7ba81444 | 2142 | references. */ |
db577aea | 2143 | if (TYPE_CODE (arg) == TYPE_CODE_REF) |
6b1ba9a0 | 2144 | return (rank_one_type (parm, TYPE_TARGET_TYPE (arg)) |
db577aea AC |
2145 | + REFERENCE_CONVERSION_BADNESS); |
2146 | if (TYPE_CODE (parm) == TYPE_CODE_REF) | |
6b1ba9a0 | 2147 | return (rank_one_type (TYPE_TARGET_TYPE (parm), arg) |
db577aea | 2148 | + REFERENCE_CONVERSION_BADNESS); |
5d161b24 | 2149 | if (overload_debug) |
7ba81444 MS |
2150 | /* Debugging only. */ |
2151 | fprintf_filtered (gdb_stderr, | |
2152 | "------ Arg is %s [%d], parm is %s [%d]\n", | |
2153 | TYPE_NAME (arg), TYPE_CODE (arg), | |
2154 | TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c SS |
2155 | |
2156 | /* x -> y means arg of type x being supplied for parameter of type y */ | |
2157 | ||
2158 | switch (TYPE_CODE (parm)) | |
2159 | { | |
c5aa993b JM |
2160 | case TYPE_CODE_PTR: |
2161 | switch (TYPE_CODE (arg)) | |
2162 | { | |
2163 | case TYPE_CODE_PTR: | |
66c53f2b KS |
2164 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID |
2165 | && TYPE_CODE (TYPE_TARGET_TYPE (arg)) != TYPE_CODE_VOID) | |
c5aa993b JM |
2166 | return VOID_PTR_CONVERSION_BADNESS; |
2167 | else | |
7ba81444 MS |
2168 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
2169 | TYPE_TARGET_TYPE (arg)); | |
c5aa993b | 2170 | case TYPE_CODE_ARRAY: |
7ba81444 MS |
2171 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
2172 | TYPE_TARGET_TYPE (arg)); | |
c5aa993b JM |
2173 | case TYPE_CODE_FUNC: |
2174 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg); | |
2175 | case TYPE_CODE_INT: | |
2176 | case TYPE_CODE_ENUM: | |
4f2aea11 | 2177 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
2178 | case TYPE_CODE_CHAR: |
2179 | case TYPE_CODE_RANGE: | |
2180 | case TYPE_CODE_BOOL: | |
2181 | return POINTER_CONVERSION_BADNESS; | |
2182 | default: | |
2183 | return INCOMPATIBLE_TYPE_BADNESS; | |
2184 | } | |
2185 | case TYPE_CODE_ARRAY: | |
2186 | switch (TYPE_CODE (arg)) | |
2187 | { | |
2188 | case TYPE_CODE_PTR: | |
2189 | case TYPE_CODE_ARRAY: | |
7ba81444 MS |
2190 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
2191 | TYPE_TARGET_TYPE (arg)); | |
c5aa993b JM |
2192 | default: |
2193 | return INCOMPATIBLE_TYPE_BADNESS; | |
2194 | } | |
2195 | case TYPE_CODE_FUNC: | |
2196 | switch (TYPE_CODE (arg)) | |
2197 | { | |
2198 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
2199 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg)); | |
2200 | default: | |
2201 | return INCOMPATIBLE_TYPE_BADNESS; | |
2202 | } | |
2203 | case TYPE_CODE_INT: | |
2204 | switch (TYPE_CODE (arg)) | |
2205 | { | |
2206 | case TYPE_CODE_INT: | |
2207 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2208 | { | |
2209 | /* Deal with signed, unsigned, and plain chars and | |
7ba81444 | 2210 | signed and unsigned ints. */ |
c5aa993b JM |
2211 | if (TYPE_NOSIGN (parm)) |
2212 | { | |
2213 | /* This case only for character types */ | |
7ba81444 MS |
2214 | if (TYPE_NOSIGN (arg)) |
2215 | return 0; /* plain char -> plain char */ | |
2216 | else /* signed/unsigned char -> plain char */ | |
2217 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
2218 | } |
2219 | else if (TYPE_UNSIGNED (parm)) | |
2220 | { | |
2221 | if (TYPE_UNSIGNED (arg)) | |
2222 | { | |
7ba81444 MS |
2223 | /* unsigned int -> unsigned int, or |
2224 | unsigned long -> unsigned long */ | |
2225 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
2226 | TYPE_NAME (arg))) | |
973ccf8b | 2227 | return 0; |
7ba81444 MS |
2228 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
2229 | "int") | |
2230 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2231 | "long")) | |
c5aa993b JM |
2232 | return INTEGER_PROMOTION_BADNESS; /* unsigned int -> unsigned long */ |
2233 | else | |
1c5cb38e | 2234 | return INTEGER_CONVERSION_BADNESS; /* unsigned long -> unsigned int */ |
c5aa993b JM |
2235 | } |
2236 | else | |
2237 | { | |
7ba81444 MS |
2238 | if (integer_types_same_name_p (TYPE_NAME (arg), |
2239 | "long") | |
2240 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2241 | "int")) | |
1c5cb38e | 2242 | return INTEGER_CONVERSION_BADNESS; /* signed long -> unsigned int */ |
c5aa993b JM |
2243 | else |
2244 | return INTEGER_CONVERSION_BADNESS; /* signed int/long -> unsigned int/long */ | |
2245 | } | |
2246 | } | |
2247 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2248 | { | |
7ba81444 MS |
2249 | if (integer_types_same_name_p (TYPE_NAME (parm), |
2250 | TYPE_NAME (arg))) | |
c5aa993b | 2251 | return 0; |
7ba81444 MS |
2252 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
2253 | "int") | |
2254 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2255 | "long")) | |
c5aa993b JM |
2256 | return INTEGER_PROMOTION_BADNESS; |
2257 | else | |
1c5cb38e | 2258 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2259 | } |
2260 | else | |
1c5cb38e | 2261 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2262 | } |
2263 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2264 | return INTEGER_PROMOTION_BADNESS; | |
2265 | else | |
1c5cb38e | 2266 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b | 2267 | case TYPE_CODE_ENUM: |
4f2aea11 | 2268 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
2269 | case TYPE_CODE_CHAR: |
2270 | case TYPE_CODE_RANGE: | |
2271 | case TYPE_CODE_BOOL: | |
2272 | return INTEGER_PROMOTION_BADNESS; | |
2273 | case TYPE_CODE_FLT: | |
2274 | return INT_FLOAT_CONVERSION_BADNESS; | |
2275 | case TYPE_CODE_PTR: | |
2276 | return NS_POINTER_CONVERSION_BADNESS; | |
2277 | default: | |
2278 | return INCOMPATIBLE_TYPE_BADNESS; | |
2279 | } | |
2280 | break; | |
2281 | case TYPE_CODE_ENUM: | |
2282 | switch (TYPE_CODE (arg)) | |
2283 | { | |
2284 | case TYPE_CODE_INT: | |
2285 | case TYPE_CODE_CHAR: | |
2286 | case TYPE_CODE_RANGE: | |
2287 | case TYPE_CODE_BOOL: | |
2288 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2289 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2290 | case TYPE_CODE_FLT: |
2291 | return INT_FLOAT_CONVERSION_BADNESS; | |
2292 | default: | |
2293 | return INCOMPATIBLE_TYPE_BADNESS; | |
2294 | } | |
2295 | break; | |
2296 | case TYPE_CODE_CHAR: | |
2297 | switch (TYPE_CODE (arg)) | |
2298 | { | |
2299 | case TYPE_CODE_RANGE: | |
2300 | case TYPE_CODE_BOOL: | |
2301 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2302 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2303 | case TYPE_CODE_FLT: |
2304 | return INT_FLOAT_CONVERSION_BADNESS; | |
2305 | case TYPE_CODE_INT: | |
2306 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
1c5cb38e | 2307 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2308 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) |
2309 | return INTEGER_PROMOTION_BADNESS; | |
2310 | /* >>> !! else fall through !! <<< */ | |
2311 | case TYPE_CODE_CHAR: | |
7ba81444 MS |
2312 | /* Deal with signed, unsigned, and plain chars for C++ and |
2313 | with int cases falling through from previous case. */ | |
c5aa993b JM |
2314 | if (TYPE_NOSIGN (parm)) |
2315 | { | |
2316 | if (TYPE_NOSIGN (arg)) | |
2317 | return 0; | |
2318 | else | |
1c5cb38e | 2319 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2320 | } |
2321 | else if (TYPE_UNSIGNED (parm)) | |
2322 | { | |
2323 | if (TYPE_UNSIGNED (arg)) | |
2324 | return 0; | |
2325 | else | |
2326 | return INTEGER_PROMOTION_BADNESS; | |
2327 | } | |
2328 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2329 | return 0; | |
2330 | else | |
1c5cb38e | 2331 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2332 | default: |
2333 | return INCOMPATIBLE_TYPE_BADNESS; | |
2334 | } | |
2335 | break; | |
2336 | case TYPE_CODE_RANGE: | |
2337 | switch (TYPE_CODE (arg)) | |
2338 | { | |
2339 | case TYPE_CODE_INT: | |
2340 | case TYPE_CODE_CHAR: | |
2341 | case TYPE_CODE_RANGE: | |
2342 | case TYPE_CODE_BOOL: | |
2343 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2344 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2345 | case TYPE_CODE_FLT: |
2346 | return INT_FLOAT_CONVERSION_BADNESS; | |
2347 | default: | |
2348 | return INCOMPATIBLE_TYPE_BADNESS; | |
2349 | } | |
2350 | break; | |
2351 | case TYPE_CODE_BOOL: | |
2352 | switch (TYPE_CODE (arg)) | |
2353 | { | |
2354 | case TYPE_CODE_INT: | |
2355 | case TYPE_CODE_CHAR: | |
2356 | case TYPE_CODE_RANGE: | |
2357 | case TYPE_CODE_ENUM: | |
2358 | case TYPE_CODE_FLT: | |
2359 | case TYPE_CODE_PTR: | |
2360 | return BOOLEAN_CONVERSION_BADNESS; | |
2361 | case TYPE_CODE_BOOL: | |
2362 | return 0; | |
2363 | default: | |
2364 | return INCOMPATIBLE_TYPE_BADNESS; | |
2365 | } | |
2366 | break; | |
2367 | case TYPE_CODE_FLT: | |
2368 | switch (TYPE_CODE (arg)) | |
2369 | { | |
2370 | case TYPE_CODE_FLT: | |
2371 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2372 | return FLOAT_PROMOTION_BADNESS; | |
2373 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2374 | return 0; | |
2375 | else | |
2376 | return FLOAT_CONVERSION_BADNESS; | |
2377 | case TYPE_CODE_INT: | |
2378 | case TYPE_CODE_BOOL: | |
2379 | case TYPE_CODE_ENUM: | |
2380 | case TYPE_CODE_RANGE: | |
2381 | case TYPE_CODE_CHAR: | |
2382 | return INT_FLOAT_CONVERSION_BADNESS; | |
2383 | default: | |
2384 | return INCOMPATIBLE_TYPE_BADNESS; | |
2385 | } | |
2386 | break; | |
2387 | case TYPE_CODE_COMPLEX: | |
2388 | switch (TYPE_CODE (arg)) | |
7ba81444 | 2389 | { /* Strictly not needed for C++, but... */ |
c5aa993b JM |
2390 | case TYPE_CODE_FLT: |
2391 | return FLOAT_PROMOTION_BADNESS; | |
2392 | case TYPE_CODE_COMPLEX: | |
2393 | return 0; | |
2394 | default: | |
2395 | return INCOMPATIBLE_TYPE_BADNESS; | |
2396 | } | |
2397 | break; | |
2398 | case TYPE_CODE_STRUCT: | |
c906108c | 2399 | /* currently same as TYPE_CODE_CLASS */ |
c5aa993b JM |
2400 | switch (TYPE_CODE (arg)) |
2401 | { | |
2402 | case TYPE_CODE_STRUCT: | |
2403 | /* Check for derivation */ | |
2404 | if (is_ancestor (parm, arg)) | |
2405 | return BASE_CONVERSION_BADNESS; | |
2406 | /* else fall through */ | |
2407 | default: | |
2408 | return INCOMPATIBLE_TYPE_BADNESS; | |
2409 | } | |
2410 | break; | |
2411 | case TYPE_CODE_UNION: | |
2412 | switch (TYPE_CODE (arg)) | |
2413 | { | |
2414 | case TYPE_CODE_UNION: | |
2415 | default: | |
2416 | return INCOMPATIBLE_TYPE_BADNESS; | |
2417 | } | |
2418 | break; | |
0d5de010 | 2419 | case TYPE_CODE_MEMBERPTR: |
c5aa993b JM |
2420 | switch (TYPE_CODE (arg)) |
2421 | { | |
2422 | default: | |
2423 | return INCOMPATIBLE_TYPE_BADNESS; | |
2424 | } | |
2425 | break; | |
2426 | case TYPE_CODE_METHOD: | |
2427 | switch (TYPE_CODE (arg)) | |
2428 | { | |
2429 | ||
2430 | default: | |
2431 | return INCOMPATIBLE_TYPE_BADNESS; | |
2432 | } | |
2433 | break; | |
2434 | case TYPE_CODE_REF: | |
2435 | switch (TYPE_CODE (arg)) | |
2436 | { | |
2437 | ||
2438 | default: | |
2439 | return INCOMPATIBLE_TYPE_BADNESS; | |
2440 | } | |
2441 | ||
2442 | break; | |
2443 | case TYPE_CODE_SET: | |
2444 | switch (TYPE_CODE (arg)) | |
2445 | { | |
2446 | /* Not in C++ */ | |
2447 | case TYPE_CODE_SET: | |
7ba81444 MS |
2448 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), |
2449 | TYPE_FIELD_TYPE (arg, 0)); | |
c5aa993b JM |
2450 | default: |
2451 | return INCOMPATIBLE_TYPE_BADNESS; | |
2452 | } | |
2453 | break; | |
2454 | case TYPE_CODE_VOID: | |
2455 | default: | |
2456 | return INCOMPATIBLE_TYPE_BADNESS; | |
2457 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
2458 | } |
2459 | ||
c5aa993b JM |
2460 | |
2461 | /* End of functions for overload resolution */ | |
c906108c | 2462 | |
c906108c | 2463 | static void |
fba45db2 | 2464 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
2465 | { |
2466 | int bitno; | |
2467 | ||
2468 | for (bitno = 0; bitno < nbits; bitno++) | |
2469 | { | |
2470 | if ((bitno % 8) == 0) | |
2471 | { | |
2472 | puts_filtered (" "); | |
2473 | } | |
2474 | if (B_TST (bits, bitno)) | |
a3f17187 | 2475 | printf_filtered (("1")); |
c906108c | 2476 | else |
a3f17187 | 2477 | printf_filtered (("0")); |
c906108c SS |
2478 | } |
2479 | } | |
2480 | ||
ad2f7632 | 2481 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
2482 | include it since we may get into a infinitely recursive |
2483 | situation. */ | |
c906108c SS |
2484 | |
2485 | static void | |
ad2f7632 | 2486 | print_arg_types (struct field *args, int nargs, int spaces) |
c906108c SS |
2487 | { |
2488 | if (args != NULL) | |
2489 | { | |
ad2f7632 DJ |
2490 | int i; |
2491 | ||
2492 | for (i = 0; i < nargs; i++) | |
2493 | recursive_dump_type (args[i].type, spaces + 2); | |
c906108c SS |
2494 | } |
2495 | } | |
2496 | ||
d6a843b5 JK |
2497 | int |
2498 | field_is_static (struct field *f) | |
2499 | { | |
2500 | /* "static" fields are the fields whose location is not relative | |
2501 | to the address of the enclosing struct. It would be nice to | |
2502 | have a dedicated flag that would be set for static fields when | |
2503 | the type is being created. But in practice, checking the field | |
2504 | loc_kind should give us an accurate answer (at least as long as | |
2505 | we assume that DWARF block locations are not going to be used | |
2506 | for static fields). FIXME? */ | |
2507 | return (FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSNAME | |
2508 | || FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSADDR); | |
2509 | } | |
2510 | ||
c906108c | 2511 | static void |
fba45db2 | 2512 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
2513 | { |
2514 | int method_idx; | |
2515 | int overload_idx; | |
2516 | struct fn_field *f; | |
2517 | ||
2518 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 2519 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
2520 | printf_filtered ("\n"); |
2521 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
2522 | { | |
2523 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
2524 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
2525 | method_idx, | |
2526 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
2527 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
2528 | gdb_stdout); | |
a3f17187 | 2529 | printf_filtered (_(") length %d\n"), |
c906108c SS |
2530 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
2531 | for (overload_idx = 0; | |
2532 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
2533 | overload_idx++) | |
2534 | { | |
2535 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
2536 | overload_idx, | |
2537 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
2538 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
2539 | gdb_stdout); | |
c906108c SS |
2540 | printf_filtered (")\n"); |
2541 | printfi_filtered (spaces + 8, "type "); | |
7ba81444 MS |
2542 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
2543 | gdb_stdout); | |
c906108c SS |
2544 | printf_filtered ("\n"); |
2545 | ||
2546 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
2547 | spaces + 8 + 2); | |
2548 | ||
2549 | printfi_filtered (spaces + 8, "args "); | |
7ba81444 MS |
2550 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
2551 | gdb_stdout); | |
c906108c SS |
2552 | printf_filtered ("\n"); |
2553 | ||
ad2f7632 | 2554 | print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), |
7ba81444 MS |
2555 | TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, |
2556 | overload_idx)), | |
ad2f7632 | 2557 | spaces); |
c906108c | 2558 | printfi_filtered (spaces + 8, "fcontext "); |
d4f3574e SS |
2559 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
2560 | gdb_stdout); | |
c906108c SS |
2561 | printf_filtered ("\n"); |
2562 | ||
2563 | printfi_filtered (spaces + 8, "is_const %d\n", | |
2564 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
2565 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
2566 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
2567 | printfi_filtered (spaces + 8, "is_private %d\n", | |
2568 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
2569 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
2570 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
2571 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
2572 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
2573 | printfi_filtered (spaces + 8, "voffset %u\n", | |
2574 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
2575 | } | |
2576 | } | |
2577 | } | |
2578 | ||
2579 | static void | |
fba45db2 | 2580 | print_cplus_stuff (struct type *type, int spaces) |
c906108c SS |
2581 | { |
2582 | printfi_filtered (spaces, "n_baseclasses %d\n", | |
2583 | TYPE_N_BASECLASSES (type)); | |
2584 | printfi_filtered (spaces, "nfn_fields %d\n", | |
2585 | TYPE_NFN_FIELDS (type)); | |
2586 | printfi_filtered (spaces, "nfn_fields_total %d\n", | |
2587 | TYPE_NFN_FIELDS_TOTAL (type)); | |
2588 | if (TYPE_N_BASECLASSES (type) > 0) | |
2589 | { | |
2590 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
2591 | TYPE_N_BASECLASSES (type)); | |
7ba81444 MS |
2592 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
2593 | gdb_stdout); | |
c906108c SS |
2594 | printf_filtered (")"); |
2595 | ||
2596 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
2597 | TYPE_N_BASECLASSES (type)); | |
2598 | puts_filtered ("\n"); | |
2599 | } | |
2600 | if (TYPE_NFIELDS (type) > 0) | |
2601 | { | |
2602 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
2603 | { | |
7ba81444 MS |
2604 | printfi_filtered (spaces, |
2605 | "private_field_bits (%d bits at *", | |
c906108c | 2606 | TYPE_NFIELDS (type)); |
7ba81444 MS |
2607 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
2608 | gdb_stdout); | |
c906108c SS |
2609 | printf_filtered (")"); |
2610 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
2611 | TYPE_NFIELDS (type)); | |
2612 | puts_filtered ("\n"); | |
2613 | } | |
2614 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
2615 | { | |
7ba81444 MS |
2616 | printfi_filtered (spaces, |
2617 | "protected_field_bits (%d bits at *", | |
c906108c | 2618 | TYPE_NFIELDS (type)); |
7ba81444 MS |
2619 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
2620 | gdb_stdout); | |
c906108c SS |
2621 | printf_filtered (")"); |
2622 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
2623 | TYPE_NFIELDS (type)); | |
2624 | puts_filtered ("\n"); | |
2625 | } | |
2626 | } | |
2627 | if (TYPE_NFN_FIELDS (type) > 0) | |
2628 | { | |
2629 | dump_fn_fieldlists (type, spaces); | |
2630 | } | |
2631 | } | |
2632 | ||
b4ba55a1 JB |
2633 | /* Print the contents of the TYPE's type_specific union, assuming that |
2634 | its type-specific kind is TYPE_SPECIFIC_GNAT_STUFF. */ | |
2635 | ||
2636 | static void | |
2637 | print_gnat_stuff (struct type *type, int spaces) | |
2638 | { | |
2639 | struct type *descriptive_type = TYPE_DESCRIPTIVE_TYPE (type); | |
2640 | ||
2641 | recursive_dump_type (descriptive_type, spaces + 2); | |
2642 | } | |
2643 | ||
c906108c SS |
2644 | static struct obstack dont_print_type_obstack; |
2645 | ||
2646 | void | |
fba45db2 | 2647 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
2648 | { |
2649 | int idx; | |
2650 | ||
2651 | if (spaces == 0) | |
2652 | obstack_begin (&dont_print_type_obstack, 0); | |
2653 | ||
2654 | if (TYPE_NFIELDS (type) > 0 | |
b4ba55a1 | 2655 | || (HAVE_CPLUS_STRUCT (type) && TYPE_NFN_FIELDS (type) > 0)) |
c906108c SS |
2656 | { |
2657 | struct type **first_dont_print | |
7ba81444 | 2658 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 2659 | |
7ba81444 MS |
2660 | int i = (struct type **) |
2661 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
2662 | |
2663 | while (--i >= 0) | |
2664 | { | |
2665 | if (type == first_dont_print[i]) | |
2666 | { | |
2667 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 2668 | gdb_print_host_address (type, gdb_stdout); |
a3f17187 | 2669 | printf_filtered (_(" <same as already seen type>\n")); |
c906108c SS |
2670 | return; |
2671 | } | |
2672 | } | |
2673 | ||
2674 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
2675 | } | |
2676 | ||
2677 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 2678 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
2679 | printf_filtered ("\n"); |
2680 | printfi_filtered (spaces, "name '%s' (", | |
2681 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 2682 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c | 2683 | printf_filtered (")\n"); |
e9e79dd9 FF |
2684 | printfi_filtered (spaces, "tagname '%s' (", |
2685 | TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>"); | |
2686 | gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); | |
2687 | printf_filtered (")\n"); | |
c906108c SS |
2688 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
2689 | switch (TYPE_CODE (type)) | |
2690 | { | |
c5aa993b JM |
2691 | case TYPE_CODE_UNDEF: |
2692 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
2693 | break; | |
2694 | case TYPE_CODE_PTR: | |
2695 | printf_filtered ("(TYPE_CODE_PTR)"); | |
2696 | break; | |
2697 | case TYPE_CODE_ARRAY: | |
2698 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
2699 | break; | |
2700 | case TYPE_CODE_STRUCT: | |
2701 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
2702 | break; | |
2703 | case TYPE_CODE_UNION: | |
2704 | printf_filtered ("(TYPE_CODE_UNION)"); | |
2705 | break; | |
2706 | case TYPE_CODE_ENUM: | |
2707 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
2708 | break; | |
4f2aea11 MK |
2709 | case TYPE_CODE_FLAGS: |
2710 | printf_filtered ("(TYPE_CODE_FLAGS)"); | |
2711 | break; | |
c5aa993b JM |
2712 | case TYPE_CODE_FUNC: |
2713 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
2714 | break; | |
2715 | case TYPE_CODE_INT: | |
2716 | printf_filtered ("(TYPE_CODE_INT)"); | |
2717 | break; | |
2718 | case TYPE_CODE_FLT: | |
2719 | printf_filtered ("(TYPE_CODE_FLT)"); | |
2720 | break; | |
2721 | case TYPE_CODE_VOID: | |
2722 | printf_filtered ("(TYPE_CODE_VOID)"); | |
2723 | break; | |
2724 | case TYPE_CODE_SET: | |
2725 | printf_filtered ("(TYPE_CODE_SET)"); | |
2726 | break; | |
2727 | case TYPE_CODE_RANGE: | |
2728 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
2729 | break; | |
2730 | case TYPE_CODE_STRING: | |
2731 | printf_filtered ("(TYPE_CODE_STRING)"); | |
2732 | break; | |
e9e79dd9 FF |
2733 | case TYPE_CODE_BITSTRING: |
2734 | printf_filtered ("(TYPE_CODE_BITSTRING)"); | |
2735 | break; | |
c5aa993b JM |
2736 | case TYPE_CODE_ERROR: |
2737 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
2738 | break; | |
0d5de010 DJ |
2739 | case TYPE_CODE_MEMBERPTR: |
2740 | printf_filtered ("(TYPE_CODE_MEMBERPTR)"); | |
2741 | break; | |
2742 | case TYPE_CODE_METHODPTR: | |
2743 | printf_filtered ("(TYPE_CODE_METHODPTR)"); | |
c5aa993b JM |
2744 | break; |
2745 | case TYPE_CODE_METHOD: | |
2746 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
2747 | break; | |
2748 | case TYPE_CODE_REF: | |
2749 | printf_filtered ("(TYPE_CODE_REF)"); | |
2750 | break; | |
2751 | case TYPE_CODE_CHAR: | |
2752 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
2753 | break; | |
2754 | case TYPE_CODE_BOOL: | |
2755 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
2756 | break; | |
e9e79dd9 FF |
2757 | case TYPE_CODE_COMPLEX: |
2758 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
2759 | break; | |
c5aa993b JM |
2760 | case TYPE_CODE_TYPEDEF: |
2761 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
2762 | break; | |
5c4e30ca DC |
2763 | case TYPE_CODE_NAMESPACE: |
2764 | printf_filtered ("(TYPE_CODE_NAMESPACE)"); | |
2765 | break; | |
c5aa993b JM |
2766 | default: |
2767 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
2768 | break; | |
c906108c SS |
2769 | } |
2770 | puts_filtered ("\n"); | |
2771 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
e9bb382b UW |
2772 | if (TYPE_OBJFILE_OWNED (type)) |
2773 | { | |
2774 | printfi_filtered (spaces, "objfile "); | |
2775 | gdb_print_host_address (TYPE_OWNER (type).objfile, gdb_stdout); | |
2776 | } | |
2777 | else | |
2778 | { | |
2779 | printfi_filtered (spaces, "gdbarch "); | |
2780 | gdb_print_host_address (TYPE_OWNER (type).gdbarch, gdb_stdout); | |
2781 | } | |
c906108c SS |
2782 | printf_filtered ("\n"); |
2783 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 2784 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
2785 | printf_filtered ("\n"); |
2786 | if (TYPE_TARGET_TYPE (type) != NULL) | |
2787 | { | |
2788 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
2789 | } | |
2790 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 2791 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
2792 | printf_filtered ("\n"); |
2793 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 2794 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 2795 | printf_filtered ("\n"); |
2fdde8f8 DJ |
2796 | printfi_filtered (spaces, "type_chain "); |
2797 | gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); | |
e9e79dd9 | 2798 | printf_filtered ("\n"); |
7ba81444 MS |
2799 | printfi_filtered (spaces, "instance_flags 0x%x", |
2800 | TYPE_INSTANCE_FLAGS (type)); | |
2fdde8f8 DJ |
2801 | if (TYPE_CONST (type)) |
2802 | { | |
2803 | puts_filtered (" TYPE_FLAG_CONST"); | |
2804 | } | |
2805 | if (TYPE_VOLATILE (type)) | |
2806 | { | |
2807 | puts_filtered (" TYPE_FLAG_VOLATILE"); | |
2808 | } | |
2809 | if (TYPE_CODE_SPACE (type)) | |
2810 | { | |
2811 | puts_filtered (" TYPE_FLAG_CODE_SPACE"); | |
2812 | } | |
2813 | if (TYPE_DATA_SPACE (type)) | |
2814 | { | |
2815 | puts_filtered (" TYPE_FLAG_DATA_SPACE"); | |
2816 | } | |
8b2dbe47 KB |
2817 | if (TYPE_ADDRESS_CLASS_1 (type)) |
2818 | { | |
2819 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_1"); | |
2820 | } | |
2821 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
2822 | { | |
2823 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_2"); | |
2824 | } | |
2fdde8f8 | 2825 | puts_filtered ("\n"); |
876cecd0 TT |
2826 | |
2827 | printfi_filtered (spaces, "flags"); | |
762a036f | 2828 | if (TYPE_UNSIGNED (type)) |
c906108c SS |
2829 | { |
2830 | puts_filtered (" TYPE_FLAG_UNSIGNED"); | |
2831 | } | |
762a036f FF |
2832 | if (TYPE_NOSIGN (type)) |
2833 | { | |
2834 | puts_filtered (" TYPE_FLAG_NOSIGN"); | |
2835 | } | |
2836 | if (TYPE_STUB (type)) | |
c906108c SS |
2837 | { |
2838 | puts_filtered (" TYPE_FLAG_STUB"); | |
2839 | } | |
762a036f FF |
2840 | if (TYPE_TARGET_STUB (type)) |
2841 | { | |
2842 | puts_filtered (" TYPE_FLAG_TARGET_STUB"); | |
2843 | } | |
2844 | if (TYPE_STATIC (type)) | |
2845 | { | |
2846 | puts_filtered (" TYPE_FLAG_STATIC"); | |
2847 | } | |
762a036f FF |
2848 | if (TYPE_PROTOTYPED (type)) |
2849 | { | |
2850 | puts_filtered (" TYPE_FLAG_PROTOTYPED"); | |
2851 | } | |
2852 | if (TYPE_INCOMPLETE (type)) | |
2853 | { | |
2854 | puts_filtered (" TYPE_FLAG_INCOMPLETE"); | |
2855 | } | |
762a036f FF |
2856 | if (TYPE_VARARGS (type)) |
2857 | { | |
2858 | puts_filtered (" TYPE_FLAG_VARARGS"); | |
2859 | } | |
f5f8a009 EZ |
2860 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
2861 | an attribute for the array type, which tells whether or not we | |
2862 | have a vector, instead of a regular array. */ | |
2863 | if (TYPE_VECTOR (type)) | |
2864 | { | |
2865 | puts_filtered (" TYPE_FLAG_VECTOR"); | |
2866 | } | |
876cecd0 TT |
2867 | if (TYPE_FIXED_INSTANCE (type)) |
2868 | { | |
2869 | puts_filtered (" TYPE_FIXED_INSTANCE"); | |
2870 | } | |
2871 | if (TYPE_STUB_SUPPORTED (type)) | |
2872 | { | |
2873 | puts_filtered (" TYPE_STUB_SUPPORTED"); | |
2874 | } | |
2875 | if (TYPE_NOTTEXT (type)) | |
2876 | { | |
2877 | puts_filtered (" TYPE_NOTTEXT"); | |
2878 | } | |
c906108c SS |
2879 | puts_filtered ("\n"); |
2880 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 2881 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
2882 | puts_filtered ("\n"); |
2883 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
2884 | { | |
2885 | printfi_filtered (spaces + 2, | |
2886 | "[%d] bitpos %d bitsize %d type ", | |
2887 | idx, TYPE_FIELD_BITPOS (type, idx), | |
2888 | TYPE_FIELD_BITSIZE (type, idx)); | |
d4f3574e | 2889 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
2890 | printf_filtered (" name '%s' (", |
2891 | TYPE_FIELD_NAME (type, idx) != NULL | |
2892 | ? TYPE_FIELD_NAME (type, idx) | |
2893 | : "<NULL>"); | |
d4f3574e | 2894 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
2895 | printf_filtered (")\n"); |
2896 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
2897 | { | |
2898 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
2899 | } | |
2900 | } | |
43bbcdc2 PH |
2901 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
2902 | { | |
2903 | printfi_filtered (spaces, "low %s%s high %s%s\n", | |
2904 | plongest (TYPE_LOW_BOUND (type)), | |
2905 | TYPE_LOW_BOUND_UNDEFINED (type) ? " (undefined)" : "", | |
2906 | plongest (TYPE_HIGH_BOUND (type)), | |
2907 | TYPE_HIGH_BOUND_UNDEFINED (type) ? " (undefined)" : ""); | |
2908 | } | |
c906108c | 2909 | printfi_filtered (spaces, "vptr_basetype "); |
d4f3574e | 2910 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); |
c906108c SS |
2911 | puts_filtered ("\n"); |
2912 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
2913 | { | |
2914 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
2915 | } | |
7ba81444 MS |
2916 | printfi_filtered (spaces, "vptr_fieldno %d\n", |
2917 | TYPE_VPTR_FIELDNO (type)); | |
c906108c | 2918 | |
b4ba55a1 JB |
2919 | switch (TYPE_SPECIFIC_FIELD (type)) |
2920 | { | |
2921 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
2922 | printfi_filtered (spaces, "cplus_stuff "); | |
2923 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), | |
2924 | gdb_stdout); | |
2925 | puts_filtered ("\n"); | |
2926 | print_cplus_stuff (type, spaces); | |
2927 | break; | |
8da61cc4 | 2928 | |
b4ba55a1 JB |
2929 | case TYPE_SPECIFIC_GNAT_STUFF: |
2930 | printfi_filtered (spaces, "gnat_stuff "); | |
2931 | gdb_print_host_address (TYPE_GNAT_SPECIFIC (type), gdb_stdout); | |
2932 | puts_filtered ("\n"); | |
2933 | print_gnat_stuff (type, spaces); | |
2934 | break; | |
701c159d | 2935 | |
b4ba55a1 JB |
2936 | case TYPE_SPECIFIC_FLOATFORMAT: |
2937 | printfi_filtered (spaces, "floatformat "); | |
2938 | if (TYPE_FLOATFORMAT (type) == NULL) | |
2939 | puts_filtered ("(null)"); | |
2940 | else | |
2941 | { | |
2942 | puts_filtered ("{ "); | |
2943 | if (TYPE_FLOATFORMAT (type)[0] == NULL | |
2944 | || TYPE_FLOATFORMAT (type)[0]->name == NULL) | |
2945 | puts_filtered ("(null)"); | |
2946 | else | |
2947 | puts_filtered (TYPE_FLOATFORMAT (type)[0]->name); | |
2948 | ||
2949 | puts_filtered (", "); | |
2950 | if (TYPE_FLOATFORMAT (type)[1] == NULL | |
2951 | || TYPE_FLOATFORMAT (type)[1]->name == NULL) | |
2952 | puts_filtered ("(null)"); | |
2953 | else | |
2954 | puts_filtered (TYPE_FLOATFORMAT (type)[1]->name); | |
2955 | ||
2956 | puts_filtered (" }"); | |
2957 | } | |
2958 | puts_filtered ("\n"); | |
2959 | break; | |
c906108c | 2960 | |
b4ba55a1 JB |
2961 | case TYPE_SPECIFIC_CALLING_CONVENTION: |
2962 | printfi_filtered (spaces, "calling_convention %d\n", | |
2963 | TYPE_CALLING_CONVENTION (type)); | |
2964 | break; | |
c906108c | 2965 | } |
b4ba55a1 | 2966 | |
c906108c SS |
2967 | if (spaces == 0) |
2968 | obstack_free (&dont_print_type_obstack, NULL); | |
2969 | } | |
2970 | ||
ae5a43e0 DJ |
2971 | /* Trivial helpers for the libiberty hash table, for mapping one |
2972 | type to another. */ | |
2973 | ||
2974 | struct type_pair | |
2975 | { | |
2976 | struct type *old, *new; | |
2977 | }; | |
2978 | ||
2979 | static hashval_t | |
2980 | type_pair_hash (const void *item) | |
2981 | { | |
2982 | const struct type_pair *pair = item; | |
2983 | return htab_hash_pointer (pair->old); | |
2984 | } | |
2985 | ||
2986 | static int | |
2987 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
2988 | { | |
2989 | const struct type_pair *lhs = item_lhs, *rhs = item_rhs; | |
2990 | return lhs->old == rhs->old; | |
2991 | } | |
2992 | ||
2993 | /* Allocate the hash table used by copy_type_recursive to walk | |
2994 | types without duplicates. We use OBJFILE's obstack, because | |
2995 | OBJFILE is about to be deleted. */ | |
2996 | ||
2997 | htab_t | |
2998 | create_copied_types_hash (struct objfile *objfile) | |
2999 | { | |
3000 | return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, | |
3001 | NULL, &objfile->objfile_obstack, | |
3002 | hashtab_obstack_allocate, | |
3003 | dummy_obstack_deallocate); | |
3004 | } | |
3005 | ||
7ba81444 MS |
3006 | /* Recursively copy (deep copy) TYPE, if it is associated with |
3007 | OBJFILE. Return a new type allocated using malloc, a saved type if | |
3008 | we have already visited TYPE (using COPIED_TYPES), or TYPE if it is | |
3009 | not associated with OBJFILE. */ | |
ae5a43e0 DJ |
3010 | |
3011 | struct type * | |
7ba81444 MS |
3012 | copy_type_recursive (struct objfile *objfile, |
3013 | struct type *type, | |
ae5a43e0 DJ |
3014 | htab_t copied_types) |
3015 | { | |
3016 | struct type_pair *stored, pair; | |
3017 | void **slot; | |
3018 | struct type *new_type; | |
3019 | ||
e9bb382b | 3020 | if (! TYPE_OBJFILE_OWNED (type)) |
ae5a43e0 DJ |
3021 | return type; |
3022 | ||
7ba81444 MS |
3023 | /* This type shouldn't be pointing to any types in other objfiles; |
3024 | if it did, the type might disappear unexpectedly. */ | |
ae5a43e0 DJ |
3025 | gdb_assert (TYPE_OBJFILE (type) == objfile); |
3026 | ||
3027 | pair.old = type; | |
3028 | slot = htab_find_slot (copied_types, &pair, INSERT); | |
3029 | if (*slot != NULL) | |
3030 | return ((struct type_pair *) *slot)->new; | |
3031 | ||
e9bb382b | 3032 | new_type = alloc_type_arch (get_type_arch (type)); |
ae5a43e0 DJ |
3033 | |
3034 | /* We must add the new type to the hash table immediately, in case | |
3035 | we encounter this type again during a recursive call below. */ | |
d87ecdfb | 3036 | stored = obstack_alloc (&objfile->objfile_obstack, sizeof (struct type_pair)); |
ae5a43e0 DJ |
3037 | stored->old = type; |
3038 | stored->new = new_type; | |
3039 | *slot = stored; | |
3040 | ||
876cecd0 TT |
3041 | /* Copy the common fields of types. For the main type, we simply |
3042 | copy the entire thing and then update specific fields as needed. */ | |
3043 | *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type); | |
e9bb382b UW |
3044 | TYPE_OBJFILE_OWNED (new_type) = 0; |
3045 | TYPE_OWNER (new_type).gdbarch = get_type_arch (type); | |
876cecd0 | 3046 | |
ae5a43e0 DJ |
3047 | if (TYPE_NAME (type)) |
3048 | TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type)); | |
3049 | if (TYPE_TAG_NAME (type)) | |
3050 | TYPE_TAG_NAME (new_type) = xstrdup (TYPE_TAG_NAME (type)); | |
ae5a43e0 DJ |
3051 | |
3052 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); | |
3053 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
3054 | ||
3055 | /* Copy the fields. */ | |
ae5a43e0 DJ |
3056 | if (TYPE_NFIELDS (type)) |
3057 | { | |
3058 | int i, nfields; | |
3059 | ||
3060 | nfields = TYPE_NFIELDS (type); | |
1deafd4e | 3061 | TYPE_FIELDS (new_type) = XCALLOC (nfields, struct field); |
ae5a43e0 DJ |
3062 | for (i = 0; i < nfields; i++) |
3063 | { | |
7ba81444 MS |
3064 | TYPE_FIELD_ARTIFICIAL (new_type, i) = |
3065 | TYPE_FIELD_ARTIFICIAL (type, i); | |
ae5a43e0 DJ |
3066 | TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
3067 | if (TYPE_FIELD_TYPE (type, i)) | |
3068 | TYPE_FIELD_TYPE (new_type, i) | |
3069 | = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i), | |
3070 | copied_types); | |
3071 | if (TYPE_FIELD_NAME (type, i)) | |
7ba81444 MS |
3072 | TYPE_FIELD_NAME (new_type, i) = |
3073 | xstrdup (TYPE_FIELD_NAME (type, i)); | |
d6a843b5 | 3074 | switch (TYPE_FIELD_LOC_KIND (type, i)) |
ae5a43e0 | 3075 | { |
d6a843b5 JK |
3076 | case FIELD_LOC_KIND_BITPOS: |
3077 | SET_FIELD_BITPOS (TYPE_FIELD (new_type, i), | |
3078 | TYPE_FIELD_BITPOS (type, i)); | |
3079 | break; | |
3080 | case FIELD_LOC_KIND_PHYSADDR: | |
3081 | SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i), | |
3082 | TYPE_FIELD_STATIC_PHYSADDR (type, i)); | |
3083 | break; | |
3084 | case FIELD_LOC_KIND_PHYSNAME: | |
3085 | SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i), | |
3086 | xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, | |
3087 | i))); | |
3088 | break; | |
3089 | default: | |
3090 | internal_error (__FILE__, __LINE__, | |
3091 | _("Unexpected type field location kind: %d"), | |
3092 | TYPE_FIELD_LOC_KIND (type, i)); | |
ae5a43e0 DJ |
3093 | } |
3094 | } | |
3095 | } | |
3096 | ||
43bbcdc2 PH |
3097 | /* For range types, copy the bounds information. */ |
3098 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) | |
3099 | { | |
3100 | TYPE_RANGE_DATA (new_type) = xmalloc (sizeof (struct range_bounds)); | |
3101 | *TYPE_RANGE_DATA (new_type) = *TYPE_RANGE_DATA (type); | |
3102 | } | |
3103 | ||
ae5a43e0 DJ |
3104 | /* Copy pointers to other types. */ |
3105 | if (TYPE_TARGET_TYPE (type)) | |
7ba81444 MS |
3106 | TYPE_TARGET_TYPE (new_type) = |
3107 | copy_type_recursive (objfile, | |
3108 | TYPE_TARGET_TYPE (type), | |
3109 | copied_types); | |
ae5a43e0 | 3110 | if (TYPE_VPTR_BASETYPE (type)) |
7ba81444 MS |
3111 | TYPE_VPTR_BASETYPE (new_type) = |
3112 | copy_type_recursive (objfile, | |
3113 | TYPE_VPTR_BASETYPE (type), | |
3114 | copied_types); | |
ae5a43e0 DJ |
3115 | /* Maybe copy the type_specific bits. |
3116 | ||
3117 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
3118 | base classes and methods. There's no fundamental reason why we | |
3119 | can't, but at the moment it is not needed. */ | |
3120 | ||
3121 | if (TYPE_CODE (type) == TYPE_CODE_FLT) | |
d5d6fca5 | 3122 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); |
ae5a43e0 DJ |
3123 | else if (TYPE_CODE (type) == TYPE_CODE_STRUCT |
3124 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
ae5a43e0 DJ |
3125 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) |
3126 | INIT_CPLUS_SPECIFIC (new_type); | |
3127 | ||
3128 | return new_type; | |
3129 | } | |
3130 | ||
4af88198 JB |
3131 | /* Make a copy of the given TYPE, except that the pointer & reference |
3132 | types are not preserved. | |
3133 | ||
3134 | This function assumes that the given type has an associated objfile. | |
3135 | This objfile is used to allocate the new type. */ | |
3136 | ||
3137 | struct type * | |
3138 | copy_type (const struct type *type) | |
3139 | { | |
3140 | struct type *new_type; | |
3141 | ||
e9bb382b | 3142 | gdb_assert (TYPE_OBJFILE_OWNED (type)); |
4af88198 | 3143 | |
e9bb382b | 3144 | new_type = alloc_type_copy (type); |
4af88198 JB |
3145 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); |
3146 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
3147 | memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type), | |
3148 | sizeof (struct main_type)); | |
3149 | ||
3150 | return new_type; | |
3151 | } | |
3152 | ||
e9bb382b UW |
3153 | |
3154 | /* Helper functions to initialize architecture-specific types. */ | |
3155 | ||
3156 | /* Allocate a type structure associated with GDBARCH and set its | |
3157 | CODE, LENGTH, and NAME fields. */ | |
3158 | struct type * | |
3159 | arch_type (struct gdbarch *gdbarch, | |
3160 | enum type_code code, int length, char *name) | |
3161 | { | |
3162 | struct type *type; | |
3163 | ||
3164 | type = alloc_type_arch (gdbarch); | |
3165 | TYPE_CODE (type) = code; | |
3166 | TYPE_LENGTH (type) = length; | |
3167 | ||
3168 | if (name) | |
3169 | TYPE_NAME (type) = xstrdup (name); | |
3170 | ||
3171 | return type; | |
3172 | } | |
3173 | ||
3174 | /* Allocate a TYPE_CODE_INT type structure associated with GDBARCH. | |
3175 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3176 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
3177 | struct type * | |
3178 | arch_integer_type (struct gdbarch *gdbarch, | |
3179 | int bit, int unsigned_p, char *name) | |
3180 | { | |
3181 | struct type *t; | |
3182 | ||
3183 | t = arch_type (gdbarch, TYPE_CODE_INT, bit / TARGET_CHAR_BIT, name); | |
3184 | if (unsigned_p) | |
3185 | TYPE_UNSIGNED (t) = 1; | |
3186 | if (name && strcmp (name, "char") == 0) | |
3187 | TYPE_NOSIGN (t) = 1; | |
3188 | ||
3189 | return t; | |
3190 | } | |
3191 | ||
3192 | /* Allocate a TYPE_CODE_CHAR type structure associated with GDBARCH. | |
3193 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3194 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
3195 | struct type * | |
3196 | arch_character_type (struct gdbarch *gdbarch, | |
3197 | int bit, int unsigned_p, char *name) | |
3198 | { | |
3199 | struct type *t; | |
3200 | ||
3201 | t = arch_type (gdbarch, TYPE_CODE_CHAR, bit / TARGET_CHAR_BIT, name); | |
3202 | if (unsigned_p) | |
3203 | TYPE_UNSIGNED (t) = 1; | |
3204 | ||
3205 | return t; | |
3206 | } | |
3207 | ||
3208 | /* Allocate a TYPE_CODE_BOOL type structure associated with GDBARCH. | |
3209 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3210 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
3211 | struct type * | |
3212 | arch_boolean_type (struct gdbarch *gdbarch, | |
3213 | int bit, int unsigned_p, char *name) | |
3214 | { | |
3215 | struct type *t; | |
3216 | ||
3217 | t = arch_type (gdbarch, TYPE_CODE_BOOL, bit / TARGET_CHAR_BIT, name); | |
3218 | if (unsigned_p) | |
3219 | TYPE_UNSIGNED (t) = 1; | |
3220 | ||
3221 | return t; | |
3222 | } | |
3223 | ||
3224 | /* Allocate a TYPE_CODE_FLT type structure associated with GDBARCH. | |
3225 | BIT is the type size in bits; if BIT equals -1, the size is | |
3226 | determined by the floatformat. NAME is the type name. Set the | |
3227 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
27067745 | 3228 | struct type * |
e9bb382b UW |
3229 | arch_float_type (struct gdbarch *gdbarch, |
3230 | int bit, char *name, const struct floatformat **floatformats) | |
8da61cc4 DJ |
3231 | { |
3232 | struct type *t; | |
3233 | ||
3234 | if (bit == -1) | |
3235 | { | |
3236 | gdb_assert (floatformats != NULL); | |
3237 | gdb_assert (floatformats[0] != NULL && floatformats[1] != NULL); | |
3238 | bit = floatformats[0]->totalsize; | |
3239 | } | |
3240 | gdb_assert (bit >= 0); | |
3241 | ||
e9bb382b | 3242 | t = arch_type (gdbarch, TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, name); |
8da61cc4 DJ |
3243 | TYPE_FLOATFORMAT (t) = floatformats; |
3244 | return t; | |
3245 | } | |
3246 | ||
e9bb382b UW |
3247 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with GDBARCH. |
3248 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
27067745 | 3249 | struct type * |
e9bb382b UW |
3250 | arch_complex_type (struct gdbarch *gdbarch, |
3251 | char *name, struct type *target_type) | |
27067745 UW |
3252 | { |
3253 | struct type *t; | |
e9bb382b UW |
3254 | t = arch_type (gdbarch, TYPE_CODE_COMPLEX, |
3255 | 2 * TYPE_LENGTH (target_type), name); | |
27067745 UW |
3256 | TYPE_TARGET_TYPE (t) = target_type; |
3257 | return t; | |
3258 | } | |
3259 | ||
e9bb382b | 3260 | /* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH. |
eb90ce83 | 3261 | NAME is the type name. LENGTH is the size of the flag word in bytes. */ |
e9bb382b UW |
3262 | struct type * |
3263 | arch_flags_type (struct gdbarch *gdbarch, char *name, int length) | |
3264 | { | |
3265 | int nfields = length * TARGET_CHAR_BIT; | |
3266 | struct type *type; | |
3267 | ||
3268 | type = arch_type (gdbarch, TYPE_CODE_FLAGS, length, name); | |
3269 | TYPE_UNSIGNED (type) = 1; | |
3270 | TYPE_NFIELDS (type) = nfields; | |
3271 | TYPE_FIELDS (type) = TYPE_ZALLOC (type, nfields * sizeof (struct field)); | |
3272 | ||
3273 | return type; | |
3274 | } | |
3275 | ||
3276 | /* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
3277 | position BITPOS is called NAME. */ | |
3278 | void | |
3279 | append_flags_type_flag (struct type *type, int bitpos, char *name) | |
3280 | { | |
3281 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS); | |
3282 | gdb_assert (bitpos < TYPE_NFIELDS (type)); | |
3283 | gdb_assert (bitpos >= 0); | |
3284 | ||
3285 | if (name) | |
3286 | { | |
3287 | TYPE_FIELD_NAME (type, bitpos) = xstrdup (name); | |
3288 | TYPE_FIELD_BITPOS (type, bitpos) = bitpos; | |
3289 | } | |
3290 | else | |
3291 | { | |
3292 | /* Don't show this field to the user. */ | |
3293 | TYPE_FIELD_BITPOS (type, bitpos) = -1; | |
3294 | } | |
3295 | } | |
3296 | ||
3297 | /* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as | |
3298 | specified by CODE) associated with GDBARCH. NAME is the type name. */ | |
3299 | struct type * | |
3300 | arch_composite_type (struct gdbarch *gdbarch, char *name, enum type_code code) | |
3301 | { | |
3302 | struct type *t; | |
3303 | gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION); | |
3304 | t = arch_type (gdbarch, code, 0, NULL); | |
3305 | TYPE_TAG_NAME (t) = name; | |
3306 | INIT_CPLUS_SPECIFIC (t); | |
3307 | return t; | |
3308 | } | |
3309 | ||
3310 | /* Add new field with name NAME and type FIELD to composite type T. | |
f5dff777 DJ |
3311 | Do not set the field's position or adjust the type's length; |
3312 | the caller should do so. Return the new field. */ | |
3313 | struct field * | |
3314 | append_composite_type_field_raw (struct type *t, char *name, | |
3315 | struct type *field) | |
e9bb382b UW |
3316 | { |
3317 | struct field *f; | |
3318 | TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; | |
3319 | TYPE_FIELDS (t) = xrealloc (TYPE_FIELDS (t), | |
3320 | sizeof (struct field) * TYPE_NFIELDS (t)); | |
3321 | f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); | |
3322 | memset (f, 0, sizeof f[0]); | |
3323 | FIELD_TYPE (f[0]) = field; | |
3324 | FIELD_NAME (f[0]) = name; | |
f5dff777 DJ |
3325 | return f; |
3326 | } | |
3327 | ||
3328 | /* Add new field with name NAME and type FIELD to composite type T. | |
3329 | ALIGNMENT (if non-zero) specifies the minimum field alignment. */ | |
3330 | void | |
3331 | append_composite_type_field_aligned (struct type *t, char *name, | |
3332 | struct type *field, int alignment) | |
3333 | { | |
3334 | struct field *f = append_composite_type_field_raw (t, name, field); | |
e9bb382b UW |
3335 | if (TYPE_CODE (t) == TYPE_CODE_UNION) |
3336 | { | |
3337 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) | |
3338 | TYPE_LENGTH (t) = TYPE_LENGTH (field); | |
3339 | } | |
3340 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
3341 | { | |
3342 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
3343 | if (TYPE_NFIELDS (t) > 1) | |
3344 | { | |
3345 | FIELD_BITPOS (f[0]) = (FIELD_BITPOS (f[-1]) | |
3346 | + (TYPE_LENGTH (FIELD_TYPE (f[-1])) | |
3347 | * TARGET_CHAR_BIT)); | |
3348 | ||
3349 | if (alignment) | |
3350 | { | |
3351 | int left = FIELD_BITPOS (f[0]) % (alignment * TARGET_CHAR_BIT); | |
3352 | if (left) | |
3353 | { | |
3354 | FIELD_BITPOS (f[0]) += left; | |
3355 | TYPE_LENGTH (t) += left / TARGET_CHAR_BIT; | |
3356 | } | |
3357 | } | |
3358 | } | |
3359 | } | |
3360 | } | |
3361 | ||
3362 | /* Add new field with name NAME and type FIELD to composite type T. */ | |
3363 | void | |
3364 | append_composite_type_field (struct type *t, char *name, | |
3365 | struct type *field) | |
3366 | { | |
3367 | append_composite_type_field_aligned (t, name, field, 0); | |
3368 | } | |
3369 | ||
3370 | ||
000177f0 AC |
3371 | static struct gdbarch_data *gdbtypes_data; |
3372 | ||
3373 | const struct builtin_type * | |
3374 | builtin_type (struct gdbarch *gdbarch) | |
3375 | { | |
3376 | return gdbarch_data (gdbarch, gdbtypes_data); | |
3377 | } | |
3378 | ||
3379 | static void * | |
3380 | gdbtypes_post_init (struct gdbarch *gdbarch) | |
3381 | { | |
3382 | struct builtin_type *builtin_type | |
3383 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); | |
3384 | ||
46bf5051 | 3385 | /* Basic types. */ |
e9bb382b UW |
3386 | builtin_type->builtin_void |
3387 | = arch_type (gdbarch, TYPE_CODE_VOID, 1, "void"); | |
3388 | builtin_type->builtin_char | |
3389 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
3390 | !gdbarch_char_signed (gdbarch), "char"); | |
3391 | builtin_type->builtin_signed_char | |
3392 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
3393 | 0, "signed char"); | |
3394 | builtin_type->builtin_unsigned_char | |
3395 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
3396 | 1, "unsigned char"); | |
3397 | builtin_type->builtin_short | |
3398 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
3399 | 0, "short"); | |
3400 | builtin_type->builtin_unsigned_short | |
3401 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
3402 | 1, "unsigned short"); | |
3403 | builtin_type->builtin_int | |
3404 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
3405 | 0, "int"); | |
3406 | builtin_type->builtin_unsigned_int | |
3407 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
3408 | 1, "unsigned int"); | |
3409 | builtin_type->builtin_long | |
3410 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
3411 | 0, "long"); | |
3412 | builtin_type->builtin_unsigned_long | |
3413 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
3414 | 1, "unsigned long"); | |
3415 | builtin_type->builtin_long_long | |
3416 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
3417 | 0, "long long"); | |
3418 | builtin_type->builtin_unsigned_long_long | |
3419 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
3420 | 1, "unsigned long long"); | |
70bd8e24 | 3421 | builtin_type->builtin_float |
e9bb382b | 3422 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), |
27067745 | 3423 | "float", gdbarch_float_format (gdbarch)); |
70bd8e24 | 3424 | builtin_type->builtin_double |
e9bb382b | 3425 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), |
27067745 | 3426 | "double", gdbarch_double_format (gdbarch)); |
70bd8e24 | 3427 | builtin_type->builtin_long_double |
e9bb382b | 3428 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), |
27067745 | 3429 | "long double", gdbarch_long_double_format (gdbarch)); |
70bd8e24 | 3430 | builtin_type->builtin_complex |
e9bb382b UW |
3431 | = arch_complex_type (gdbarch, "complex", |
3432 | builtin_type->builtin_float); | |
70bd8e24 | 3433 | builtin_type->builtin_double_complex |
e9bb382b UW |
3434 | = arch_complex_type (gdbarch, "double complex", |
3435 | builtin_type->builtin_double); | |
3436 | builtin_type->builtin_string | |
3437 | = arch_type (gdbarch, TYPE_CODE_STRING, 1, "string"); | |
3438 | builtin_type->builtin_bool | |
3439 | = arch_type (gdbarch, TYPE_CODE_BOOL, 1, "bool"); | |
000177f0 | 3440 | |
7678ef8f TJB |
3441 | /* The following three are about decimal floating point types, which |
3442 | are 32-bits, 64-bits and 128-bits respectively. */ | |
3443 | builtin_type->builtin_decfloat | |
e9bb382b | 3444 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 32 / 8, "_Decimal32"); |
7678ef8f | 3445 | builtin_type->builtin_decdouble |
e9bb382b | 3446 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 64 / 8, "_Decimal64"); |
7678ef8f | 3447 | builtin_type->builtin_declong |
e9bb382b | 3448 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 128 / 8, "_Decimal128"); |
7678ef8f | 3449 | |
69feb676 | 3450 | /* "True" character types. */ |
e9bb382b UW |
3451 | builtin_type->builtin_true_char |
3452 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 0, "true character"); | |
3453 | builtin_type->builtin_true_unsigned_char | |
3454 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 1, "true character"); | |
69feb676 | 3455 | |
df4df182 | 3456 | /* Fixed-size integer types. */ |
e9bb382b UW |
3457 | builtin_type->builtin_int0 |
3458 | = arch_integer_type (gdbarch, 0, 0, "int0_t"); | |
3459 | builtin_type->builtin_int8 | |
3460 | = arch_integer_type (gdbarch, 8, 0, "int8_t"); | |
3461 | builtin_type->builtin_uint8 | |
3462 | = arch_integer_type (gdbarch, 8, 1, "uint8_t"); | |
3463 | builtin_type->builtin_int16 | |
3464 | = arch_integer_type (gdbarch, 16, 0, "int16_t"); | |
3465 | builtin_type->builtin_uint16 | |
3466 | = arch_integer_type (gdbarch, 16, 1, "uint16_t"); | |
3467 | builtin_type->builtin_int32 | |
3468 | = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
3469 | builtin_type->builtin_uint32 | |
3470 | = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
3471 | builtin_type->builtin_int64 | |
3472 | = arch_integer_type (gdbarch, 64, 0, "int64_t"); | |
3473 | builtin_type->builtin_uint64 | |
3474 | = arch_integer_type (gdbarch, 64, 1, "uint64_t"); | |
3475 | builtin_type->builtin_int128 | |
3476 | = arch_integer_type (gdbarch, 128, 0, "int128_t"); | |
3477 | builtin_type->builtin_uint128 | |
3478 | = arch_integer_type (gdbarch, 128, 1, "uint128_t"); | |
3479 | TYPE_NOTTEXT (builtin_type->builtin_int8) = 1; | |
3480 | TYPE_NOTTEXT (builtin_type->builtin_uint8) = 1; | |
df4df182 | 3481 | |
9a22f0d0 PM |
3482 | /* Wide character types. */ |
3483 | builtin_type->builtin_char16 | |
3484 | = arch_integer_type (gdbarch, 16, 0, "char16_t"); | |
3485 | builtin_type->builtin_char32 | |
3486 | = arch_integer_type (gdbarch, 32, 0, "char32_t"); | |
3487 | ||
3488 | ||
46bf5051 | 3489 | /* Default data/code pointer types. */ |
e9bb382b UW |
3490 | builtin_type->builtin_data_ptr |
3491 | = lookup_pointer_type (builtin_type->builtin_void); | |
3492 | builtin_type->builtin_func_ptr | |
3493 | = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
46bf5051 | 3494 | |
78267919 | 3495 | /* This type represents a GDB internal function. */ |
e9bb382b UW |
3496 | builtin_type->internal_fn |
3497 | = arch_type (gdbarch, TYPE_CODE_INTERNAL_FUNCTION, 0, | |
3498 | "<internal function>"); | |
78267919 | 3499 | |
46bf5051 UW |
3500 | return builtin_type; |
3501 | } | |
3502 | ||
3503 | ||
3504 | /* This set of objfile-based types is intended to be used by symbol | |
3505 | readers as basic types. */ | |
3506 | ||
3507 | static const struct objfile_data *objfile_type_data; | |
3508 | ||
3509 | const struct objfile_type * | |
3510 | objfile_type (struct objfile *objfile) | |
3511 | { | |
3512 | struct gdbarch *gdbarch; | |
3513 | struct objfile_type *objfile_type | |
3514 | = objfile_data (objfile, objfile_type_data); | |
3515 | ||
3516 | if (objfile_type) | |
3517 | return objfile_type; | |
3518 | ||
3519 | objfile_type = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
3520 | 1, struct objfile_type); | |
3521 | ||
3522 | /* Use the objfile architecture to determine basic type properties. */ | |
3523 | gdbarch = get_objfile_arch (objfile); | |
3524 | ||
3525 | /* Basic types. */ | |
3526 | objfile_type->builtin_void | |
3527 | = init_type (TYPE_CODE_VOID, 1, | |
3528 | 0, | |
3529 | "void", objfile); | |
3530 | ||
3531 | objfile_type->builtin_char | |
3532 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3533 | (TYPE_FLAG_NOSIGN | |
3534 | | (gdbarch_char_signed (gdbarch) ? 0 : TYPE_FLAG_UNSIGNED)), | |
3535 | "char", objfile); | |
3536 | objfile_type->builtin_signed_char | |
3537 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3538 | 0, | |
3539 | "signed char", objfile); | |
3540 | objfile_type->builtin_unsigned_char | |
3541 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3542 | TYPE_FLAG_UNSIGNED, | |
3543 | "unsigned char", objfile); | |
3544 | objfile_type->builtin_short | |
3545 | = init_type (TYPE_CODE_INT, | |
3546 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
3547 | 0, "short", objfile); | |
3548 | objfile_type->builtin_unsigned_short | |
3549 | = init_type (TYPE_CODE_INT, | |
3550 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
3551 | TYPE_FLAG_UNSIGNED, "unsigned short", objfile); | |
3552 | objfile_type->builtin_int | |
3553 | = init_type (TYPE_CODE_INT, | |
3554 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
3555 | 0, "int", objfile); | |
3556 | objfile_type->builtin_unsigned_int | |
3557 | = init_type (TYPE_CODE_INT, | |
3558 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
3559 | TYPE_FLAG_UNSIGNED, "unsigned int", objfile); | |
3560 | objfile_type->builtin_long | |
3561 | = init_type (TYPE_CODE_INT, | |
3562 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
3563 | 0, "long", objfile); | |
3564 | objfile_type->builtin_unsigned_long | |
3565 | = init_type (TYPE_CODE_INT, | |
3566 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
3567 | TYPE_FLAG_UNSIGNED, "unsigned long", objfile); | |
3568 | objfile_type->builtin_long_long | |
3569 | = init_type (TYPE_CODE_INT, | |
3570 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
3571 | 0, "long long", objfile); | |
3572 | objfile_type->builtin_unsigned_long_long | |
3573 | = init_type (TYPE_CODE_INT, | |
3574 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
3575 | TYPE_FLAG_UNSIGNED, "unsigned long long", objfile); | |
3576 | ||
3577 | objfile_type->builtin_float | |
3578 | = init_type (TYPE_CODE_FLT, | |
3579 | gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, | |
3580 | 0, "float", objfile); | |
3581 | TYPE_FLOATFORMAT (objfile_type->builtin_float) | |
3582 | = gdbarch_float_format (gdbarch); | |
3583 | objfile_type->builtin_double | |
3584 | = init_type (TYPE_CODE_FLT, | |
3585 | gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
3586 | 0, "double", objfile); | |
3587 | TYPE_FLOATFORMAT (objfile_type->builtin_double) | |
3588 | = gdbarch_double_format (gdbarch); | |
3589 | objfile_type->builtin_long_double | |
3590 | = init_type (TYPE_CODE_FLT, | |
3591 | gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
3592 | 0, "long double", objfile); | |
3593 | TYPE_FLOATFORMAT (objfile_type->builtin_long_double) | |
3594 | = gdbarch_long_double_format (gdbarch); | |
3595 | ||
3596 | /* This type represents a type that was unrecognized in symbol read-in. */ | |
3597 | objfile_type->builtin_error | |
3598 | = init_type (TYPE_CODE_ERROR, 0, 0, "<unknown type>", objfile); | |
3599 | ||
3600 | /* The following set of types is used for symbols with no | |
3601 | debug information. */ | |
3602 | objfile_type->nodebug_text_symbol | |
3603 | = init_type (TYPE_CODE_FUNC, 1, 0, | |
3604 | "<text variable, no debug info>", objfile); | |
3605 | TYPE_TARGET_TYPE (objfile_type->nodebug_text_symbol) | |
3606 | = objfile_type->builtin_int; | |
3607 | objfile_type->nodebug_data_symbol | |
3608 | = init_type (TYPE_CODE_INT, | |
3609 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
3610 | "<data variable, no debug info>", objfile); | |
3611 | objfile_type->nodebug_unknown_symbol | |
3612 | = init_type (TYPE_CODE_INT, 1, 0, | |
3613 | "<variable (not text or data), no debug info>", objfile); | |
3614 | objfile_type->nodebug_tls_symbol | |
3615 | = init_type (TYPE_CODE_INT, | |
3616 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
3617 | "<thread local variable, no debug info>", objfile); | |
000177f0 AC |
3618 | |
3619 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
3620 | the same --- for example, on the D10V, pointers are 16 bits long, | |
3621 | but addresses are 32 bits long. See doc/gdbint.texinfo, | |
3622 | ``Pointers Are Not Always Addresses''. | |
3623 | ||
3624 | The upshot is: | |
3625 | - gdb's `struct type' always describes the target's | |
3626 | representation. | |
3627 | - gdb's `struct value' objects should always hold values in | |
3628 | target form. | |
3629 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
3630 | address space that the assembler and linker work with. Thus, | |
3631 | since target_read_memory takes a CORE_ADDR as an argument, it | |
3632 | can access any memory on the target, even if the processor has | |
3633 | separate code and data address spaces. | |
3634 | ||
3635 | So, for example: | |
3636 | - If v is a value holding a D10V code pointer, its contents are | |
3637 | in target form: a big-endian address left-shifted two bits. | |
3638 | - If p is a D10V pointer type, TYPE_LENGTH (p) == 2, just as | |
3639 | sizeof (void *) == 2 on the target. | |
3640 | ||
46bf5051 UW |
3641 | In this context, objfile_type->builtin_core_addr is a bit odd: |
3642 | it's a target type for a value the target will never see. It's | |
3643 | only used to hold the values of (typeless) linker symbols, which | |
3644 | are indeed in the unified virtual address space. */ | |
000177f0 | 3645 | |
46bf5051 UW |
3646 | objfile_type->builtin_core_addr |
3647 | = init_type (TYPE_CODE_INT, | |
3648 | gdbarch_addr_bit (gdbarch) / 8, | |
3649 | TYPE_FLAG_UNSIGNED, "__CORE_ADDR", objfile); | |
64c50499 | 3650 | |
46bf5051 UW |
3651 | set_objfile_data (objfile, objfile_type_data, objfile_type); |
3652 | return objfile_type; | |
000177f0 AC |
3653 | } |
3654 | ||
46bf5051 | 3655 | |
a14ed312 | 3656 | extern void _initialize_gdbtypes (void); |
c906108c | 3657 | void |
fba45db2 | 3658 | _initialize_gdbtypes (void) |
c906108c | 3659 | { |
5674de60 | 3660 | gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
46bf5051 | 3661 | objfile_type_data = register_objfile_data (); |
5674de60 | 3662 | |
85c07804 AC |
3663 | add_setshow_zinteger_cmd ("overload", no_class, &overload_debug, _("\ |
3664 | Set debugging of C++ overloading."), _("\ | |
3665 | Show debugging of C++ overloading."), _("\ | |
3666 | When enabled, ranking of the functions is displayed."), | |
3667 | NULL, | |
920d2a44 | 3668 | show_overload_debug, |
85c07804 | 3669 | &setdebuglist, &showdebuglist); |
5674de60 | 3670 | |
7ba81444 | 3671 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 UW |
3672 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3673 | &opaque_type_resolution, _("\ | |
3674 | Set resolution of opaque struct/class/union types (if set before loading symbols)."), _("\ | |
3675 | Show resolution of opaque struct/class/union types (if set before loading symbols)."), NULL, | |
3676 | NULL, | |
3677 | show_opaque_type_resolution, | |
3678 | &setlist, &showlist); | |
c906108c | 3679 | } |