Commit | Line | Data |
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c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
4f2aea11 | 2 | |
7ba81444 MS |
3 | Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, |
4 | 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. | |
4f2aea11 | 5 | |
c906108c SS |
6 | Contributed by Cygnus Support, using pieces from other GDB modules. |
7 | ||
c5aa993b | 8 | This file is part of GDB. |
c906108c | 9 | |
c5aa993b JM |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 12 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 13 | (at your option) any later version. |
c906108c | 14 | |
c5aa993b JM |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
c906108c | 19 | |
c5aa993b | 20 | You should have received a copy of the GNU General Public License |
a9762ec7 | 21 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
22 | |
23 | #include "defs.h" | |
24 | #include "gdb_string.h" | |
25 | #include "bfd.h" | |
26 | #include "symtab.h" | |
27 | #include "symfile.h" | |
28 | #include "objfiles.h" | |
29 | #include "gdbtypes.h" | |
30 | #include "expression.h" | |
31 | #include "language.h" | |
32 | #include "target.h" | |
33 | #include "value.h" | |
34 | #include "demangle.h" | |
35 | #include "complaints.h" | |
36 | #include "gdbcmd.h" | |
c91ecb25 | 37 | #include "wrapper.h" |
015a42b4 | 38 | #include "cp-abi.h" |
a02fd225 | 39 | #include "gdb_assert.h" |
ae5a43e0 | 40 | #include "hashtab.h" |
c906108c SS |
41 | |
42 | /* These variables point to the objects | |
43 | representing the predefined C data types. */ | |
44 | ||
449a5da4 | 45 | struct type *builtin_type_int0; |
c906108c SS |
46 | struct type *builtin_type_int8; |
47 | struct type *builtin_type_uint8; | |
48 | struct type *builtin_type_int16; | |
49 | struct type *builtin_type_uint16; | |
50 | struct type *builtin_type_int32; | |
51 | struct type *builtin_type_uint32; | |
52 | struct type *builtin_type_int64; | |
53 | struct type *builtin_type_uint64; | |
8b982acf EZ |
54 | struct type *builtin_type_int128; |
55 | struct type *builtin_type_uint128; | |
ac3aafc7 | 56 | |
8da61cc4 DJ |
57 | /* Floatformat pairs. */ |
58 | const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { | |
59 | &floatformat_ieee_single_big, | |
60 | &floatformat_ieee_single_little | |
61 | }; | |
62 | const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { | |
63 | &floatformat_ieee_double_big, | |
64 | &floatformat_ieee_double_little | |
65 | }; | |
66 | const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { | |
67 | &floatformat_ieee_double_big, | |
68 | &floatformat_ieee_double_littlebyte_bigword | |
69 | }; | |
70 | const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { | |
71 | &floatformat_i387_ext, | |
72 | &floatformat_i387_ext | |
73 | }; | |
74 | const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { | |
75 | &floatformat_m68881_ext, | |
76 | &floatformat_m68881_ext | |
77 | }; | |
78 | const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { | |
79 | &floatformat_arm_ext_big, | |
80 | &floatformat_arm_ext_littlebyte_bigword | |
81 | }; | |
82 | const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { | |
83 | &floatformat_ia64_spill_big, | |
84 | &floatformat_ia64_spill_little | |
85 | }; | |
86 | const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = { | |
87 | &floatformat_ia64_quad_big, | |
88 | &floatformat_ia64_quad_little | |
89 | }; | |
90 | const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { | |
91 | &floatformat_vax_f, | |
92 | &floatformat_vax_f | |
93 | }; | |
94 | const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { | |
95 | &floatformat_vax_d, | |
96 | &floatformat_vax_d | |
97 | }; | |
98 | ||
99 | struct type *builtin_type_ieee_single; | |
100 | struct type *builtin_type_ieee_double; | |
598f52df AC |
101 | struct type *builtin_type_i387_ext; |
102 | struct type *builtin_type_m68881_ext; | |
8da61cc4 DJ |
103 | struct type *builtin_type_arm_ext; |
104 | struct type *builtin_type_ia64_spill; | |
105 | struct type *builtin_type_ia64_quad; | |
106 | ||
c906108c SS |
107 | |
108 | int opaque_type_resolution = 1; | |
920d2a44 AC |
109 | static void |
110 | show_opaque_type_resolution (struct ui_file *file, int from_tty, | |
7ba81444 MS |
111 | struct cmd_list_element *c, |
112 | const char *value) | |
920d2a44 AC |
113 | { |
114 | fprintf_filtered (file, _("\ | |
115 | Resolution of opaque struct/class/union types (if set before loading symbols) is %s.\n"), | |
116 | value); | |
117 | } | |
118 | ||
5d161b24 | 119 | int overload_debug = 0; |
920d2a44 AC |
120 | static void |
121 | show_overload_debug (struct ui_file *file, int from_tty, | |
122 | struct cmd_list_element *c, const char *value) | |
123 | { | |
7ba81444 MS |
124 | fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"), |
125 | value); | |
920d2a44 | 126 | } |
c906108c | 127 | |
c5aa993b JM |
128 | struct extra |
129 | { | |
130 | char str[128]; | |
131 | int len; | |
7ba81444 | 132 | }; /* Maximum extension is 128! FIXME */ |
c906108c | 133 | |
a14ed312 | 134 | static void print_bit_vector (B_TYPE *, int); |
ad2f7632 | 135 | static void print_arg_types (struct field *, int, int); |
a14ed312 KB |
136 | static void dump_fn_fieldlists (struct type *, int); |
137 | static void print_cplus_stuff (struct type *, int); | |
138 | static void virtual_base_list_aux (struct type *dclass); | |
7a292a7a | 139 | |
c906108c SS |
140 | |
141 | /* Alloc a new type structure and fill it with some defaults. If | |
142 | OBJFILE is non-NULL, then allocate the space for the type structure | |
7ba81444 MS |
143 | in that objfile's objfile_obstack. Otherwise allocate the new type |
144 | structure by xmalloc () (for permanent types). */ | |
c906108c SS |
145 | |
146 | struct type * | |
fba45db2 | 147 | alloc_type (struct objfile *objfile) |
c906108c | 148 | { |
52f0bd74 | 149 | struct type *type; |
c906108c | 150 | |
7ba81444 | 151 | /* Alloc the structure and start off with all fields zeroed. */ |
c906108c SS |
152 | |
153 | if (objfile == NULL) | |
154 | { | |
2fdde8f8 DJ |
155 | type = xmalloc (sizeof (struct type)); |
156 | memset (type, 0, sizeof (struct type)); | |
157 | TYPE_MAIN_TYPE (type) = xmalloc (sizeof (struct main_type)); | |
c906108c SS |
158 | } |
159 | else | |
160 | { | |
b99607ea | 161 | type = obstack_alloc (&objfile->objfile_obstack, |
2fdde8f8 DJ |
162 | sizeof (struct type)); |
163 | memset (type, 0, sizeof (struct type)); | |
b99607ea | 164 | TYPE_MAIN_TYPE (type) = obstack_alloc (&objfile->objfile_obstack, |
2fdde8f8 | 165 | sizeof (struct main_type)); |
c906108c SS |
166 | OBJSTAT (objfile, n_types++); |
167 | } | |
2fdde8f8 | 168 | memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
c906108c | 169 | |
7ba81444 | 170 | /* Initialize the fields that might not be zero. */ |
c906108c SS |
171 | |
172 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
173 | TYPE_OBJFILE (type) = objfile; | |
174 | TYPE_VPTR_FIELDNO (type) = -1; | |
2fdde8f8 | 175 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
c906108c SS |
176 | |
177 | return (type); | |
178 | } | |
179 | ||
2fdde8f8 DJ |
180 | /* Alloc a new type instance structure, fill it with some defaults, |
181 | and point it at OLDTYPE. Allocate the new type instance from the | |
182 | same place as OLDTYPE. */ | |
183 | ||
184 | static struct type * | |
185 | alloc_type_instance (struct type *oldtype) | |
186 | { | |
187 | struct type *type; | |
188 | ||
189 | /* Allocate the structure. */ | |
190 | ||
191 | if (TYPE_OBJFILE (oldtype) == NULL) | |
192 | { | |
193 | type = xmalloc (sizeof (struct type)); | |
194 | memset (type, 0, sizeof (struct type)); | |
195 | } | |
196 | else | |
197 | { | |
b99607ea | 198 | type = obstack_alloc (&TYPE_OBJFILE (oldtype)->objfile_obstack, |
2fdde8f8 DJ |
199 | sizeof (struct type)); |
200 | memset (type, 0, sizeof (struct type)); | |
201 | } | |
202 | TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype); | |
203 | ||
204 | TYPE_CHAIN (type) = type; /* Chain back to itself for now. */ | |
205 | ||
206 | return (type); | |
207 | } | |
208 | ||
209 | /* Clear all remnants of the previous type at TYPE, in preparation for | |
210 | replacing it with something else. */ | |
211 | static void | |
212 | smash_type (struct type *type) | |
213 | { | |
214 | memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); | |
215 | ||
216 | /* For now, delete the rings. */ | |
217 | TYPE_CHAIN (type) = type; | |
218 | ||
219 | /* For now, leave the pointer/reference types alone. */ | |
220 | } | |
221 | ||
c906108c SS |
222 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
223 | to a pointer to memory where the pointer type should be stored. | |
224 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
225 | We allocate new memory if needed. */ | |
226 | ||
227 | struct type * | |
fba45db2 | 228 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 229 | { |
52f0bd74 | 230 | struct type *ntype; /* New type */ |
c906108c | 231 | struct objfile *objfile; |
053cb41b | 232 | struct type *chain; |
c906108c SS |
233 | |
234 | ntype = TYPE_POINTER_TYPE (type); | |
235 | ||
c5aa993b | 236 | if (ntype) |
c906108c | 237 | { |
c5aa993b | 238 | if (typeptr == 0) |
7ba81444 MS |
239 | return ntype; /* Don't care about alloc, |
240 | and have new type. */ | |
c906108c | 241 | else if (*typeptr == 0) |
c5aa993b | 242 | { |
7ba81444 | 243 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 244 | return ntype; |
c5aa993b | 245 | } |
c906108c SS |
246 | } |
247 | ||
248 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
249 | { | |
250 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
251 | if (typeptr) | |
252 | *typeptr = ntype; | |
253 | } | |
7ba81444 | 254 | else /* We have storage, but need to reset it. */ |
c906108c SS |
255 | { |
256 | ntype = *typeptr; | |
257 | objfile = TYPE_OBJFILE (ntype); | |
053cb41b | 258 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 259 | smash_type (ntype); |
053cb41b | 260 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
261 | TYPE_OBJFILE (ntype) = objfile; |
262 | } | |
263 | ||
264 | TYPE_TARGET_TYPE (ntype) = type; | |
265 | TYPE_POINTER_TYPE (type) = ntype; | |
266 | ||
7ba81444 MS |
267 | /* FIXME! Assume the machine has only one representation for |
268 | pointers! */ | |
c906108c | 269 | |
7ba81444 MS |
270 | TYPE_LENGTH (ntype) = |
271 | gdbarch_ptr_bit (current_gdbarch) / TARGET_CHAR_BIT; | |
c906108c SS |
272 | TYPE_CODE (ntype) = TYPE_CODE_PTR; |
273 | ||
67b2adb2 | 274 | /* Mark pointers as unsigned. The target converts between pointers |
76e71323 | 275 | and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and |
7ba81444 | 276 | gdbarch_address_to_pointer. */ |
c906108c | 277 | TYPE_FLAGS (ntype) |= TYPE_FLAG_UNSIGNED; |
c5aa993b | 278 | |
c906108c SS |
279 | if (!TYPE_POINTER_TYPE (type)) /* Remember it, if don't have one. */ |
280 | TYPE_POINTER_TYPE (type) = ntype; | |
281 | ||
053cb41b JB |
282 | /* Update the length of all the other variants of this type. */ |
283 | chain = TYPE_CHAIN (ntype); | |
284 | while (chain != ntype) | |
285 | { | |
286 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
287 | chain = TYPE_CHAIN (chain); | |
288 | } | |
289 | ||
c906108c SS |
290 | return ntype; |
291 | } | |
292 | ||
293 | /* Given a type TYPE, return a type of pointers to that type. | |
294 | May need to construct such a type if this is the first use. */ | |
295 | ||
296 | struct type * | |
fba45db2 | 297 | lookup_pointer_type (struct type *type) |
c906108c | 298 | { |
c5aa993b | 299 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
300 | } |
301 | ||
7ba81444 MS |
302 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, |
303 | points to a pointer to memory where the reference type should be | |
304 | stored. If *TYPEPTR is zero, update it to point to the reference | |
305 | type we return. We allocate new memory if needed. */ | |
c906108c SS |
306 | |
307 | struct type * | |
fba45db2 | 308 | make_reference_type (struct type *type, struct type **typeptr) |
c906108c | 309 | { |
52f0bd74 | 310 | struct type *ntype; /* New type */ |
c906108c | 311 | struct objfile *objfile; |
1e98b326 | 312 | struct type *chain; |
c906108c SS |
313 | |
314 | ntype = TYPE_REFERENCE_TYPE (type); | |
315 | ||
c5aa993b | 316 | if (ntype) |
c906108c | 317 | { |
c5aa993b | 318 | if (typeptr == 0) |
7ba81444 MS |
319 | return ntype; /* Don't care about alloc, |
320 | and have new type. */ | |
c906108c | 321 | else if (*typeptr == 0) |
c5aa993b | 322 | { |
7ba81444 | 323 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 324 | return ntype; |
c5aa993b | 325 | } |
c906108c SS |
326 | } |
327 | ||
328 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
329 | { | |
330 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
331 | if (typeptr) | |
332 | *typeptr = ntype; | |
333 | } | |
7ba81444 | 334 | else /* We have storage, but need to reset it. */ |
c906108c SS |
335 | { |
336 | ntype = *typeptr; | |
337 | objfile = TYPE_OBJFILE (ntype); | |
1e98b326 | 338 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 339 | smash_type (ntype); |
1e98b326 | 340 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
341 | TYPE_OBJFILE (ntype) = objfile; |
342 | } | |
343 | ||
344 | TYPE_TARGET_TYPE (ntype) = type; | |
345 | TYPE_REFERENCE_TYPE (type) = ntype; | |
346 | ||
7ba81444 MS |
347 | /* FIXME! Assume the machine has only one representation for |
348 | references, and that it matches the (only) representation for | |
349 | pointers! */ | |
c906108c | 350 | |
819844ad | 351 | TYPE_LENGTH (ntype) = gdbarch_ptr_bit (current_gdbarch) / TARGET_CHAR_BIT; |
c906108c | 352 | TYPE_CODE (ntype) = TYPE_CODE_REF; |
c5aa993b | 353 | |
c906108c SS |
354 | if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */ |
355 | TYPE_REFERENCE_TYPE (type) = ntype; | |
356 | ||
1e98b326 JB |
357 | /* Update the length of all the other variants of this type. */ |
358 | chain = TYPE_CHAIN (ntype); | |
359 | while (chain != ntype) | |
360 | { | |
361 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
362 | chain = TYPE_CHAIN (chain); | |
363 | } | |
364 | ||
c906108c SS |
365 | return ntype; |
366 | } | |
367 | ||
7ba81444 MS |
368 | /* Same as above, but caller doesn't care about memory allocation |
369 | details. */ | |
c906108c SS |
370 | |
371 | struct type * | |
fba45db2 | 372 | lookup_reference_type (struct type *type) |
c906108c | 373 | { |
c5aa993b | 374 | return make_reference_type (type, (struct type **) 0); |
c906108c SS |
375 | } |
376 | ||
7ba81444 MS |
377 | /* Lookup a function type that returns type TYPE. TYPEPTR, if |
378 | nonzero, points to a pointer to memory where the function type | |
379 | should be stored. If *TYPEPTR is zero, update it to point to the | |
380 | function type we return. We allocate new memory if needed. */ | |
c906108c SS |
381 | |
382 | struct type * | |
fba45db2 | 383 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 384 | { |
52f0bd74 | 385 | struct type *ntype; /* New type */ |
c906108c SS |
386 | struct objfile *objfile; |
387 | ||
388 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
389 | { | |
390 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
391 | if (typeptr) | |
392 | *typeptr = ntype; | |
393 | } | |
7ba81444 | 394 | else /* We have storage, but need to reset it. */ |
c906108c SS |
395 | { |
396 | ntype = *typeptr; | |
397 | objfile = TYPE_OBJFILE (ntype); | |
2fdde8f8 | 398 | smash_type (ntype); |
c906108c SS |
399 | TYPE_OBJFILE (ntype) = objfile; |
400 | } | |
401 | ||
402 | TYPE_TARGET_TYPE (ntype) = type; | |
403 | ||
404 | TYPE_LENGTH (ntype) = 1; | |
405 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
c5aa993b | 406 | |
c906108c SS |
407 | return ntype; |
408 | } | |
409 | ||
410 | ||
411 | /* Given a type TYPE, return a type of functions that return that type. | |
412 | May need to construct such a type if this is the first use. */ | |
413 | ||
414 | struct type * | |
fba45db2 | 415 | lookup_function_type (struct type *type) |
c906108c | 416 | { |
c5aa993b | 417 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
418 | } |
419 | ||
47663de5 MS |
420 | /* Identify address space identifier by name -- |
421 | return the integer flag defined in gdbtypes.h. */ | |
422 | extern int | |
423 | address_space_name_to_int (char *space_identifier) | |
424 | { | |
5f11f355 | 425 | struct gdbarch *gdbarch = current_gdbarch; |
8b2dbe47 | 426 | int type_flags; |
7ba81444 | 427 | /* Check for known address space delimiters. */ |
47663de5 MS |
428 | if (!strcmp (space_identifier, "code")) |
429 | return TYPE_FLAG_CODE_SPACE; | |
430 | else if (!strcmp (space_identifier, "data")) | |
431 | return TYPE_FLAG_DATA_SPACE; | |
5f11f355 AC |
432 | else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
433 | && gdbarch_address_class_name_to_type_flags (gdbarch, | |
434 | space_identifier, | |
435 | &type_flags)) | |
8b2dbe47 | 436 | return type_flags; |
47663de5 | 437 | else |
8a3fe4f8 | 438 | error (_("Unknown address space specifier: \"%s\""), space_identifier); |
47663de5 MS |
439 | } |
440 | ||
441 | /* Identify address space identifier by integer flag as defined in | |
7ba81444 | 442 | gdbtypes.h -- return the string version of the adress space name. */ |
47663de5 | 443 | |
321432c0 | 444 | const char * |
47663de5 MS |
445 | address_space_int_to_name (int space_flag) |
446 | { | |
5f11f355 | 447 | struct gdbarch *gdbarch = current_gdbarch; |
47663de5 MS |
448 | if (space_flag & TYPE_FLAG_CODE_SPACE) |
449 | return "code"; | |
450 | else if (space_flag & TYPE_FLAG_DATA_SPACE) | |
451 | return "data"; | |
8b2dbe47 | 452 | else if ((space_flag & TYPE_FLAG_ADDRESS_CLASS_ALL) |
5f11f355 AC |
453 | && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
454 | return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); | |
47663de5 MS |
455 | else |
456 | return NULL; | |
457 | } | |
458 | ||
2fdde8f8 | 459 | /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
ad766c0a JB |
460 | |
461 | If STORAGE is non-NULL, create the new type instance there. | |
462 | STORAGE must be in the same obstack as TYPE. */ | |
47663de5 | 463 | |
b9362cc7 | 464 | static struct type * |
2fdde8f8 DJ |
465 | make_qualified_type (struct type *type, int new_flags, |
466 | struct type *storage) | |
47663de5 MS |
467 | { |
468 | struct type *ntype; | |
469 | ||
470 | ntype = type; | |
471 | do { | |
2fdde8f8 | 472 | if (TYPE_INSTANCE_FLAGS (ntype) == new_flags) |
47663de5 | 473 | return ntype; |
2fdde8f8 | 474 | ntype = TYPE_CHAIN (ntype); |
47663de5 MS |
475 | } while (ntype != type); |
476 | ||
2fdde8f8 DJ |
477 | /* Create a new type instance. */ |
478 | if (storage == NULL) | |
479 | ntype = alloc_type_instance (type); | |
480 | else | |
481 | { | |
7ba81444 MS |
482 | /* If STORAGE was provided, it had better be in the same objfile |
483 | as TYPE. Otherwise, we can't link it into TYPE's cv chain: | |
484 | if one objfile is freed and the other kept, we'd have | |
485 | dangling pointers. */ | |
ad766c0a JB |
486 | gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage)); |
487 | ||
2fdde8f8 DJ |
488 | ntype = storage; |
489 | TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); | |
490 | TYPE_CHAIN (ntype) = ntype; | |
491 | } | |
47663de5 MS |
492 | |
493 | /* Pointers or references to the original type are not relevant to | |
2fdde8f8 | 494 | the new type. */ |
47663de5 MS |
495 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
496 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
47663de5 | 497 | |
2fdde8f8 DJ |
498 | /* Chain the new qualified type to the old type. */ |
499 | TYPE_CHAIN (ntype) = TYPE_CHAIN (type); | |
500 | TYPE_CHAIN (type) = ntype; | |
501 | ||
502 | /* Now set the instance flags and return the new type. */ | |
503 | TYPE_INSTANCE_FLAGS (ntype) = new_flags; | |
47663de5 | 504 | |
ab5d3da6 KB |
505 | /* Set length of new type to that of the original type. */ |
506 | TYPE_LENGTH (ntype) = TYPE_LENGTH (type); | |
507 | ||
47663de5 MS |
508 | return ntype; |
509 | } | |
510 | ||
2fdde8f8 DJ |
511 | /* Make an address-space-delimited variant of a type -- a type that |
512 | is identical to the one supplied except that it has an address | |
513 | space attribute attached to it (such as "code" or "data"). | |
514 | ||
7ba81444 MS |
515 | The space attributes "code" and "data" are for Harvard |
516 | architectures. The address space attributes are for architectures | |
517 | which have alternately sized pointers or pointers with alternate | |
518 | representations. */ | |
2fdde8f8 DJ |
519 | |
520 | struct type * | |
521 | make_type_with_address_space (struct type *type, int space_flag) | |
522 | { | |
523 | struct type *ntype; | |
524 | int new_flags = ((TYPE_INSTANCE_FLAGS (type) | |
8b2dbe47 KB |
525 | & ~(TYPE_FLAG_CODE_SPACE | TYPE_FLAG_DATA_SPACE |
526 | | TYPE_FLAG_ADDRESS_CLASS_ALL)) | |
2fdde8f8 DJ |
527 | | space_flag); |
528 | ||
529 | return make_qualified_type (type, new_flags, NULL); | |
530 | } | |
c906108c SS |
531 | |
532 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
533 | one supplied except that it may have const or volatile attributes | |
534 | CNST is a flag for setting the const attribute | |
535 | VOLTL is a flag for setting the volatile attribute | |
536 | TYPE is the base type whose variant we are creating. | |
c906108c | 537 | |
ad766c0a JB |
538 | If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to |
539 | storage to hold the new qualified type; *TYPEPTR and TYPE must be | |
540 | in the same objfile. Otherwise, allocate fresh memory for the new | |
541 | type whereever TYPE lives. If TYPEPTR is non-zero, set it to the | |
542 | new type we construct. */ | |
c906108c | 543 | struct type * |
7ba81444 MS |
544 | make_cv_type (int cnst, int voltl, |
545 | struct type *type, | |
546 | struct type **typeptr) | |
c906108c | 547 | { |
52f0bd74 AC |
548 | struct type *ntype; /* New type */ |
549 | struct type *tmp_type = type; /* tmp type */ | |
c906108c SS |
550 | struct objfile *objfile; |
551 | ||
2fdde8f8 DJ |
552 | int new_flags = (TYPE_INSTANCE_FLAGS (type) |
553 | & ~(TYPE_FLAG_CONST | TYPE_FLAG_VOLATILE)); | |
c906108c | 554 | |
c906108c | 555 | if (cnst) |
2fdde8f8 | 556 | new_flags |= TYPE_FLAG_CONST; |
c906108c SS |
557 | |
558 | if (voltl) | |
2fdde8f8 | 559 | new_flags |= TYPE_FLAG_VOLATILE; |
a02fd225 | 560 | |
2fdde8f8 | 561 | if (typeptr && *typeptr != NULL) |
a02fd225 | 562 | { |
ad766c0a JB |
563 | /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
564 | a C-V variant chain that threads across objfiles: if one | |
565 | objfile gets freed, then the other has a broken C-V chain. | |
566 | ||
567 | This code used to try to copy over the main type from TYPE to | |
568 | *TYPEPTR if they were in different objfiles, but that's | |
569 | wrong, too: TYPE may have a field list or member function | |
570 | lists, which refer to types of their own, etc. etc. The | |
571 | whole shebang would need to be copied over recursively; you | |
572 | can't have inter-objfile pointers. The only thing to do is | |
573 | to leave stub types as stub types, and look them up afresh by | |
574 | name each time you encounter them. */ | |
575 | gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type)); | |
2fdde8f8 DJ |
576 | } |
577 | ||
7ba81444 MS |
578 | ntype = make_qualified_type (type, new_flags, |
579 | typeptr ? *typeptr : NULL); | |
c906108c | 580 | |
2fdde8f8 DJ |
581 | if (typeptr != NULL) |
582 | *typeptr = ntype; | |
a02fd225 | 583 | |
2fdde8f8 | 584 | return ntype; |
a02fd225 | 585 | } |
c906108c | 586 | |
2fdde8f8 DJ |
587 | /* Replace the contents of ntype with the type *type. This changes the |
588 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
589 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 590 | |
cda6c68a JB |
591 | In order to build recursive types, it's inevitable that we'll need |
592 | to update types in place --- but this sort of indiscriminate | |
593 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
594 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
595 | clear if more steps are needed. */ | |
dd6bda65 DJ |
596 | void |
597 | replace_type (struct type *ntype, struct type *type) | |
598 | { | |
ab5d3da6 | 599 | struct type *chain; |
dd6bda65 | 600 | |
ad766c0a JB |
601 | /* These two types had better be in the same objfile. Otherwise, |
602 | the assignment of one type's main type structure to the other | |
603 | will produce a type with references to objects (names; field | |
604 | lists; etc.) allocated on an objfile other than its own. */ | |
605 | gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (ntype)); | |
606 | ||
2fdde8f8 | 607 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 608 | |
7ba81444 MS |
609 | /* The type length is not a part of the main type. Update it for |
610 | each type on the variant chain. */ | |
ab5d3da6 KB |
611 | chain = ntype; |
612 | do { | |
613 | /* Assert that this element of the chain has no address-class bits | |
614 | set in its flags. Such type variants might have type lengths | |
615 | which are supposed to be different from the non-address-class | |
616 | variants. This assertion shouldn't ever be triggered because | |
617 | symbol readers which do construct address-class variants don't | |
618 | call replace_type(). */ | |
619 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
620 | ||
787cbe14 | 621 | TYPE_LENGTH (chain) = TYPE_LENGTH (type); |
ab5d3da6 KB |
622 | chain = TYPE_CHAIN (chain); |
623 | } while (ntype != chain); | |
624 | ||
2fdde8f8 DJ |
625 | /* Assert that the two types have equivalent instance qualifiers. |
626 | This should be true for at least all of our debug readers. */ | |
627 | gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type)); | |
dd6bda65 DJ |
628 | } |
629 | ||
c906108c SS |
630 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
631 | May need to construct such a type if this is the first use. | |
632 | The TYPE is the type of the member. The DOMAIN is the type | |
633 | of the aggregate that the member belongs to. */ | |
634 | ||
635 | struct type * | |
0d5de010 | 636 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 637 | { |
52f0bd74 | 638 | struct type *mtype; |
c906108c SS |
639 | |
640 | mtype = alloc_type (TYPE_OBJFILE (type)); | |
0d5de010 | 641 | smash_to_memberptr_type (mtype, domain, type); |
c906108c SS |
642 | return (mtype); |
643 | } | |
644 | ||
0d5de010 DJ |
645 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
646 | ||
647 | struct type * | |
648 | lookup_methodptr_type (struct type *to_type) | |
649 | { | |
650 | struct type *mtype; | |
651 | ||
652 | mtype = alloc_type (TYPE_OBJFILE (to_type)); | |
653 | TYPE_TARGET_TYPE (mtype) = to_type; | |
654 | TYPE_DOMAIN_TYPE (mtype) = TYPE_DOMAIN_TYPE (to_type); | |
655 | TYPE_LENGTH (mtype) = cplus_method_ptr_size (); | |
656 | TYPE_CODE (mtype) = TYPE_CODE_METHODPTR; | |
657 | return mtype; | |
658 | } | |
659 | ||
7ba81444 MS |
660 | /* Allocate a stub method whose return type is TYPE. This apparently |
661 | happens for speed of symbol reading, since parsing out the | |
662 | arguments to the method is cpu-intensive, the way we are doing it. | |
663 | So, we will fill in arguments later. This always returns a fresh | |
664 | type. */ | |
c906108c SS |
665 | |
666 | struct type * | |
fba45db2 | 667 | allocate_stub_method (struct type *type) |
c906108c SS |
668 | { |
669 | struct type *mtype; | |
670 | ||
7e956337 FF |
671 | mtype = init_type (TYPE_CODE_METHOD, 1, TYPE_FLAG_STUB, NULL, |
672 | TYPE_OBJFILE (type)); | |
c906108c SS |
673 | TYPE_TARGET_TYPE (mtype) = type; |
674 | /* _DOMAIN_TYPE (mtype) = unknown yet */ | |
c906108c SS |
675 | return (mtype); |
676 | } | |
677 | ||
7ba81444 MS |
678 | /* Create a range type using either a blank type supplied in |
679 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
680 | INDEX_TYPE. | |
c906108c | 681 | |
7ba81444 MS |
682 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND |
683 | to HIGH_BOUND, inclusive. | |
c906108c | 684 | |
7ba81444 MS |
685 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
686 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
c906108c SS |
687 | |
688 | struct type * | |
fba45db2 KB |
689 | create_range_type (struct type *result_type, struct type *index_type, |
690 | int low_bound, int high_bound) | |
c906108c SS |
691 | { |
692 | if (result_type == NULL) | |
693 | { | |
694 | result_type = alloc_type (TYPE_OBJFILE (index_type)); | |
695 | } | |
696 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; | |
697 | TYPE_TARGET_TYPE (result_type) = index_type; | |
74a9bb82 | 698 | if (TYPE_STUB (index_type)) |
c906108c SS |
699 | TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB; |
700 | else | |
701 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
702 | TYPE_NFIELDS (result_type) = 2; | |
703 | TYPE_FIELDS (result_type) = (struct field *) | |
704 | TYPE_ALLOC (result_type, 2 * sizeof (struct field)); | |
705 | memset (TYPE_FIELDS (result_type), 0, 2 * sizeof (struct field)); | |
706 | TYPE_FIELD_BITPOS (result_type, 0) = low_bound; | |
707 | TYPE_FIELD_BITPOS (result_type, 1) = high_bound; | |
c5aa993b JM |
708 | TYPE_FIELD_TYPE (result_type, 0) = builtin_type_int; /* FIXME */ |
709 | TYPE_FIELD_TYPE (result_type, 1) = builtin_type_int; /* FIXME */ | |
c906108c | 710 | |
c5aa993b | 711 | if (low_bound >= 0) |
c906108c SS |
712 | TYPE_FLAGS (result_type) |= TYPE_FLAG_UNSIGNED; |
713 | ||
714 | return (result_type); | |
715 | } | |
716 | ||
7ba81444 MS |
717 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
718 | TYPE. Return 1 if type is a range type, 0 if it is discrete (and | |
719 | bounds will fit in LONGEST), or -1 otherwise. */ | |
c906108c SS |
720 | |
721 | int | |
fba45db2 | 722 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c SS |
723 | { |
724 | CHECK_TYPEDEF (type); | |
725 | switch (TYPE_CODE (type)) | |
726 | { | |
727 | case TYPE_CODE_RANGE: | |
728 | *lowp = TYPE_LOW_BOUND (type); | |
729 | *highp = TYPE_HIGH_BOUND (type); | |
730 | return 1; | |
731 | case TYPE_CODE_ENUM: | |
732 | if (TYPE_NFIELDS (type) > 0) | |
733 | { | |
734 | /* The enums may not be sorted by value, so search all | |
735 | entries */ | |
736 | int i; | |
737 | ||
738 | *lowp = *highp = TYPE_FIELD_BITPOS (type, 0); | |
739 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
740 | { | |
741 | if (TYPE_FIELD_BITPOS (type, i) < *lowp) | |
742 | *lowp = TYPE_FIELD_BITPOS (type, i); | |
743 | if (TYPE_FIELD_BITPOS (type, i) > *highp) | |
744 | *highp = TYPE_FIELD_BITPOS (type, i); | |
745 | } | |
746 | ||
7ba81444 | 747 | /* Set unsigned indicator if warranted. */ |
c5aa993b | 748 | if (*lowp >= 0) |
c906108c SS |
749 | { |
750 | TYPE_FLAGS (type) |= TYPE_FLAG_UNSIGNED; | |
751 | } | |
752 | } | |
753 | else | |
754 | { | |
755 | *lowp = 0; | |
756 | *highp = -1; | |
757 | } | |
758 | return 0; | |
759 | case TYPE_CODE_BOOL: | |
760 | *lowp = 0; | |
761 | *highp = 1; | |
762 | return 0; | |
763 | case TYPE_CODE_INT: | |
c5aa993b | 764 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
765 | return -1; |
766 | if (!TYPE_UNSIGNED (type)) | |
767 | { | |
c5aa993b | 768 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
769 | *highp = -*lowp - 1; |
770 | return 0; | |
771 | } | |
7ba81444 | 772 | /* ... fall through for unsigned ints ... */ |
c906108c SS |
773 | case TYPE_CODE_CHAR: |
774 | *lowp = 0; | |
775 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 | 776 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
7ba81444 | 777 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
c906108c SS |
778 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
779 | *highp = (*highp - 1) | *highp; | |
780 | return 0; | |
781 | default: | |
782 | return -1; | |
783 | } | |
784 | } | |
785 | ||
7ba81444 MS |
786 | /* Create an array type using either a blank type supplied in |
787 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
788 | RANGE_TYPE. | |
c906108c SS |
789 | |
790 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
791 | RANGE_TYPE. | |
792 | ||
7ba81444 MS |
793 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
794 | sure it is TYPE_CODE_UNDEF before we bash it into an array | |
795 | type? */ | |
c906108c SS |
796 | |
797 | struct type * | |
7ba81444 MS |
798 | create_array_type (struct type *result_type, |
799 | struct type *element_type, | |
fba45db2 | 800 | struct type *range_type) |
c906108c SS |
801 | { |
802 | LONGEST low_bound, high_bound; | |
803 | ||
804 | if (result_type == NULL) | |
805 | { | |
806 | result_type = alloc_type (TYPE_OBJFILE (range_type)); | |
807 | } | |
808 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; | |
809 | TYPE_TARGET_TYPE (result_type) = element_type; | |
810 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
811 | low_bound = high_bound = 0; | |
812 | CHECK_TYPEDEF (element_type); | |
813 | TYPE_LENGTH (result_type) = | |
814 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
815 | TYPE_NFIELDS (result_type) = 1; | |
816 | TYPE_FIELDS (result_type) = | |
817 | (struct field *) TYPE_ALLOC (result_type, sizeof (struct field)); | |
818 | memset (TYPE_FIELDS (result_type), 0, sizeof (struct field)); | |
819 | TYPE_FIELD_TYPE (result_type, 0) = range_type; | |
820 | TYPE_VPTR_FIELDNO (result_type) = -1; | |
821 | ||
822 | /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays */ | |
823 | if (TYPE_LENGTH (result_type) == 0) | |
824 | TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB; | |
825 | ||
826 | return (result_type); | |
827 | } | |
828 | ||
7ba81444 MS |
829 | /* Create a string type using either a blank type supplied in |
830 | RESULT_TYPE, or creating a new type. String types are similar | |
831 | enough to array of char types that we can use create_array_type to | |
832 | build the basic type and then bash it into a string type. | |
c906108c SS |
833 | |
834 | For fixed length strings, the range type contains 0 as the lower | |
835 | bound and the length of the string minus one as the upper bound. | |
836 | ||
7ba81444 MS |
837 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
838 | sure it is TYPE_CODE_UNDEF before we bash it into a string | |
839 | type? */ | |
c906108c SS |
840 | |
841 | struct type * | |
7ba81444 MS |
842 | create_string_type (struct type *result_type, |
843 | struct type *range_type) | |
c906108c | 844 | { |
f290d38e AC |
845 | struct type *string_char_type; |
846 | ||
847 | string_char_type = language_string_char_type (current_language, | |
848 | current_gdbarch); | |
c906108c | 849 | result_type = create_array_type (result_type, |
f290d38e | 850 | string_char_type, |
c906108c SS |
851 | range_type); |
852 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
853 | return (result_type); | |
854 | } | |
855 | ||
856 | struct type * | |
fba45db2 | 857 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c | 858 | { |
c906108c SS |
859 | if (result_type == NULL) |
860 | { | |
861 | result_type = alloc_type (TYPE_OBJFILE (domain_type)); | |
862 | } | |
863 | TYPE_CODE (result_type) = TYPE_CODE_SET; | |
864 | TYPE_NFIELDS (result_type) = 1; | |
865 | TYPE_FIELDS (result_type) = (struct field *) | |
866 | TYPE_ALLOC (result_type, 1 * sizeof (struct field)); | |
867 | memset (TYPE_FIELDS (result_type), 0, sizeof (struct field)); | |
868 | ||
74a9bb82 | 869 | if (!TYPE_STUB (domain_type)) |
c906108c | 870 | { |
f9780d5b | 871 | LONGEST low_bound, high_bound, bit_length; |
c906108c SS |
872 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
873 | low_bound = high_bound = 0; | |
874 | bit_length = high_bound - low_bound + 1; | |
875 | TYPE_LENGTH (result_type) | |
876 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
f9780d5b MS |
877 | if (low_bound >= 0) |
878 | TYPE_FLAGS (result_type) |= TYPE_FLAG_UNSIGNED; | |
c906108c SS |
879 | } |
880 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
881 | ||
c906108c SS |
882 | return (result_type); |
883 | } | |
884 | ||
4f2aea11 MK |
885 | void |
886 | append_flags_type_flag (struct type *type, int bitpos, char *name) | |
887 | { | |
888 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS); | |
889 | gdb_assert (bitpos < TYPE_NFIELDS (type)); | |
890 | gdb_assert (bitpos >= 0); | |
891 | ||
892 | if (name) | |
893 | { | |
894 | TYPE_FIELD_NAME (type, bitpos) = xstrdup (name); | |
895 | TYPE_FIELD_BITPOS (type, bitpos) = bitpos; | |
896 | } | |
897 | else | |
898 | { | |
899 | /* Don't show this field to the user. */ | |
900 | TYPE_FIELD_BITPOS (type, bitpos) = -1; | |
901 | } | |
902 | } | |
903 | ||
904 | struct type * | |
905 | init_flags_type (char *name, int length) | |
906 | { | |
907 | int nfields = length * TARGET_CHAR_BIT; | |
908 | struct type *type; | |
909 | ||
7ba81444 MS |
910 | type = init_type (TYPE_CODE_FLAGS, length, |
911 | TYPE_FLAG_UNSIGNED, name, NULL); | |
4f2aea11 | 912 | TYPE_NFIELDS (type) = nfields; |
7ba81444 MS |
913 | TYPE_FIELDS (type) = TYPE_ALLOC (type, |
914 | nfields * sizeof (struct field)); | |
76b7178d | 915 | memset (TYPE_FIELDS (type), 0, nfields * sizeof (struct field)); |
4f2aea11 MK |
916 | |
917 | return type; | |
918 | } | |
919 | ||
ea37ba09 DJ |
920 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
921 | and any array types nested inside it. */ | |
922 | ||
923 | void | |
924 | make_vector_type (struct type *array_type) | |
925 | { | |
926 | struct type *inner_array, *elt_type; | |
927 | int flags; | |
928 | ||
929 | /* Find the innermost array type, in case the array is | |
930 | multi-dimensional. */ | |
931 | inner_array = array_type; | |
932 | while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY) | |
933 | inner_array = TYPE_TARGET_TYPE (inner_array); | |
934 | ||
935 | elt_type = TYPE_TARGET_TYPE (inner_array); | |
936 | if (TYPE_CODE (elt_type) == TYPE_CODE_INT) | |
937 | { | |
938 | flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_FLAG_NOTTEXT; | |
939 | elt_type = make_qualified_type (elt_type, flags, NULL); | |
940 | TYPE_TARGET_TYPE (inner_array) = elt_type; | |
941 | } | |
942 | ||
943 | TYPE_FLAGS (array_type) |= TYPE_FLAG_VECTOR; | |
944 | } | |
945 | ||
794ac428 | 946 | struct type * |
ac3aafc7 EZ |
947 | init_vector_type (struct type *elt_type, int n) |
948 | { | |
949 | struct type *array_type; | |
950 | ||
951 | array_type = create_array_type (0, elt_type, | |
7ba81444 MS |
952 | create_range_type (0, |
953 | builtin_type_int, | |
ac3aafc7 | 954 | 0, n-1)); |
ea37ba09 | 955 | make_vector_type (array_type); |
ac3aafc7 EZ |
956 | return array_type; |
957 | } | |
958 | ||
0d5de010 DJ |
959 | /* Smash TYPE to be a type of pointers to members of DOMAIN with type |
960 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a | |
961 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
962 | TYPE doesn't include the offset (that's the value of the MEMBER | |
963 | itself), but does include the structure type into which it points | |
964 | (for some reason). | |
c906108c | 965 | |
7ba81444 MS |
966 | When "smashing" the type, we preserve the objfile that the old type |
967 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
968 | allocated. */ |
969 | ||
970 | void | |
0d5de010 DJ |
971 | smash_to_memberptr_type (struct type *type, struct type *domain, |
972 | struct type *to_type) | |
c906108c SS |
973 | { |
974 | struct objfile *objfile; | |
975 | ||
976 | objfile = TYPE_OBJFILE (type); | |
977 | ||
2fdde8f8 | 978 | smash_type (type); |
c906108c SS |
979 | TYPE_OBJFILE (type) = objfile; |
980 | TYPE_TARGET_TYPE (type) = to_type; | |
981 | TYPE_DOMAIN_TYPE (type) = domain; | |
0d5de010 DJ |
982 | /* Assume that a data member pointer is the same size as a normal |
983 | pointer. */ | |
819844ad | 984 | TYPE_LENGTH (type) = gdbarch_ptr_bit (current_gdbarch) / TARGET_CHAR_BIT; |
0d5de010 | 985 | TYPE_CODE (type) = TYPE_CODE_MEMBERPTR; |
c906108c SS |
986 | } |
987 | ||
988 | /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE. | |
989 | METHOD just means `function that gets an extra "this" argument'. | |
990 | ||
7ba81444 MS |
991 | When "smashing" the type, we preserve the objfile that the old type |
992 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
993 | allocated. */ |
994 | ||
995 | void | |
fba45db2 | 996 | smash_to_method_type (struct type *type, struct type *domain, |
ad2f7632 DJ |
997 | struct type *to_type, struct field *args, |
998 | int nargs, int varargs) | |
c906108c SS |
999 | { |
1000 | struct objfile *objfile; | |
1001 | ||
1002 | objfile = TYPE_OBJFILE (type); | |
1003 | ||
2fdde8f8 | 1004 | smash_type (type); |
c906108c SS |
1005 | TYPE_OBJFILE (type) = objfile; |
1006 | TYPE_TARGET_TYPE (type) = to_type; | |
1007 | TYPE_DOMAIN_TYPE (type) = domain; | |
ad2f7632 DJ |
1008 | TYPE_FIELDS (type) = args; |
1009 | TYPE_NFIELDS (type) = nargs; | |
1010 | if (varargs) | |
1011 | TYPE_FLAGS (type) |= TYPE_FLAG_VARARGS; | |
c906108c SS |
1012 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
1013 | TYPE_CODE (type) = TYPE_CODE_METHOD; | |
1014 | } | |
1015 | ||
1016 | /* Return a typename for a struct/union/enum type without "struct ", | |
1017 | "union ", or "enum ". If the type has a NULL name, return NULL. */ | |
1018 | ||
1019 | char * | |
aa1ee363 | 1020 | type_name_no_tag (const struct type *type) |
c906108c SS |
1021 | { |
1022 | if (TYPE_TAG_NAME (type) != NULL) | |
1023 | return TYPE_TAG_NAME (type); | |
1024 | ||
7ba81444 MS |
1025 | /* Is there code which expects this to return the name if there is |
1026 | no tag name? My guess is that this is mainly used for C++ in | |
1027 | cases where the two will always be the same. */ | |
c906108c SS |
1028 | return TYPE_NAME (type); |
1029 | } | |
1030 | ||
7ba81444 MS |
1031 | /* Lookup a typedef or primitive type named NAME, visible in lexical |
1032 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
1033 | suitably defined. */ | |
c906108c SS |
1034 | |
1035 | struct type * | |
fba45db2 | 1036 | lookup_typename (char *name, struct block *block, int noerr) |
c906108c | 1037 | { |
52f0bd74 AC |
1038 | struct symbol *sym; |
1039 | struct type *tmp; | |
c906108c | 1040 | |
7ba81444 MS |
1041 | sym = lookup_symbol (name, block, VAR_DOMAIN, 0, |
1042 | (struct symtab **) NULL); | |
c906108c SS |
1043 | if (sym == NULL || SYMBOL_CLASS (sym) != LOC_TYPEDEF) |
1044 | { | |
54a5b07d AC |
1045 | tmp = language_lookup_primitive_type_by_name (current_language, |
1046 | current_gdbarch, | |
1047 | name); | |
c906108c SS |
1048 | if (tmp) |
1049 | { | |
1050 | return (tmp); | |
1051 | } | |
1052 | else if (!tmp && noerr) | |
1053 | { | |
1054 | return (NULL); | |
1055 | } | |
1056 | else | |
1057 | { | |
8a3fe4f8 | 1058 | error (_("No type named %s."), name); |
c906108c SS |
1059 | } |
1060 | } | |
1061 | return (SYMBOL_TYPE (sym)); | |
1062 | } | |
1063 | ||
1064 | struct type * | |
fba45db2 | 1065 | lookup_unsigned_typename (char *name) |
c906108c SS |
1066 | { |
1067 | char *uns = alloca (strlen (name) + 10); | |
1068 | ||
1069 | strcpy (uns, "unsigned "); | |
1070 | strcpy (uns + 9, name); | |
1071 | return (lookup_typename (uns, (struct block *) NULL, 0)); | |
1072 | } | |
1073 | ||
1074 | struct type * | |
fba45db2 | 1075 | lookup_signed_typename (char *name) |
c906108c SS |
1076 | { |
1077 | struct type *t; | |
1078 | char *uns = alloca (strlen (name) + 8); | |
1079 | ||
1080 | strcpy (uns, "signed "); | |
1081 | strcpy (uns + 7, name); | |
1082 | t = lookup_typename (uns, (struct block *) NULL, 1); | |
7ba81444 | 1083 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
c906108c SS |
1084 | if (t != NULL) |
1085 | return t; | |
1086 | return lookup_typename (name, (struct block *) NULL, 0); | |
1087 | } | |
1088 | ||
1089 | /* Lookup a structure type named "struct NAME", | |
1090 | visible in lexical block BLOCK. */ | |
1091 | ||
1092 | struct type * | |
fba45db2 | 1093 | lookup_struct (char *name, struct block *block) |
c906108c | 1094 | { |
52f0bd74 | 1095 | struct symbol *sym; |
c906108c | 1096 | |
176620f1 | 1097 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0, |
c906108c SS |
1098 | (struct symtab **) NULL); |
1099 | ||
1100 | if (sym == NULL) | |
1101 | { | |
8a3fe4f8 | 1102 | error (_("No struct type named %s."), name); |
c906108c SS |
1103 | } |
1104 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1105 | { | |
7ba81444 MS |
1106 | error (_("This context has class, union or enum %s, not a struct."), |
1107 | name); | |
c906108c SS |
1108 | } |
1109 | return (SYMBOL_TYPE (sym)); | |
1110 | } | |
1111 | ||
1112 | /* Lookup a union type named "union NAME", | |
1113 | visible in lexical block BLOCK. */ | |
1114 | ||
1115 | struct type * | |
fba45db2 | 1116 | lookup_union (char *name, struct block *block) |
c906108c | 1117 | { |
52f0bd74 | 1118 | struct symbol *sym; |
c5aa993b | 1119 | struct type *t; |
c906108c | 1120 | |
176620f1 | 1121 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0, |
c906108c SS |
1122 | (struct symtab **) NULL); |
1123 | ||
1124 | if (sym == NULL) | |
8a3fe4f8 | 1125 | error (_("No union type named %s."), name); |
c906108c | 1126 | |
c5aa993b | 1127 | t = SYMBOL_TYPE (sym); |
c906108c SS |
1128 | |
1129 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
1130 | return (t); | |
1131 | ||
1132 | /* C++ unions may come out with TYPE_CODE_CLASS, but we look at | |
1133 | * a further "declared_type" field to discover it is really a union. | |
1134 | */ | |
c5aa993b JM |
1135 | if (HAVE_CPLUS_STRUCT (t)) |
1136 | if (TYPE_DECLARED_TYPE (t) == DECLARED_TYPE_UNION) | |
c906108c SS |
1137 | return (t); |
1138 | ||
7ba81444 MS |
1139 | /* If we get here, it's not a union. */ |
1140 | error (_("This context has class, struct or enum %s, not a union."), | |
1141 | name); | |
c906108c SS |
1142 | } |
1143 | ||
1144 | ||
1145 | /* Lookup an enum type named "enum NAME", | |
1146 | visible in lexical block BLOCK. */ | |
1147 | ||
1148 | struct type * | |
fba45db2 | 1149 | lookup_enum (char *name, struct block *block) |
c906108c | 1150 | { |
52f0bd74 | 1151 | struct symbol *sym; |
c906108c | 1152 | |
176620f1 | 1153 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0, |
c906108c SS |
1154 | (struct symtab **) NULL); |
1155 | if (sym == NULL) | |
1156 | { | |
8a3fe4f8 | 1157 | error (_("No enum type named %s."), name); |
c906108c SS |
1158 | } |
1159 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
1160 | { | |
7ba81444 MS |
1161 | error (_("This context has class, struct or union %s, not an enum."), |
1162 | name); | |
c906108c SS |
1163 | } |
1164 | return (SYMBOL_TYPE (sym)); | |
1165 | } | |
1166 | ||
1167 | /* Lookup a template type named "template NAME<TYPE>", | |
1168 | visible in lexical block BLOCK. */ | |
1169 | ||
1170 | struct type * | |
7ba81444 MS |
1171 | lookup_template_type (char *name, struct type *type, |
1172 | struct block *block) | |
c906108c SS |
1173 | { |
1174 | struct symbol *sym; | |
7ba81444 MS |
1175 | char *nam = (char *) |
1176 | alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4); | |
c906108c SS |
1177 | strcpy (nam, name); |
1178 | strcat (nam, "<"); | |
0004e5a2 | 1179 | strcat (nam, TYPE_NAME (type)); |
7ba81444 | 1180 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1181 | |
7ba81444 MS |
1182 | sym = lookup_symbol (nam, block, VAR_DOMAIN, 0, |
1183 | (struct symtab **) NULL); | |
c906108c SS |
1184 | |
1185 | if (sym == NULL) | |
1186 | { | |
8a3fe4f8 | 1187 | error (_("No template type named %s."), name); |
c906108c SS |
1188 | } |
1189 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1190 | { | |
7ba81444 MS |
1191 | error (_("This context has class, union or enum %s, not a struct."), |
1192 | name); | |
c906108c SS |
1193 | } |
1194 | return (SYMBOL_TYPE (sym)); | |
1195 | } | |
1196 | ||
7ba81444 MS |
1197 | /* Given a type TYPE, lookup the type of the component of type named |
1198 | NAME. | |
c906108c | 1199 | |
7ba81444 MS |
1200 | TYPE can be either a struct or union, or a pointer or reference to |
1201 | a struct or union. If it is a pointer or reference, its target | |
1202 | type is automatically used. Thus '.' and '->' are interchangable, | |
1203 | as specified for the definitions of the expression element types | |
1204 | STRUCTOP_STRUCT and STRUCTOP_PTR. | |
c906108c SS |
1205 | |
1206 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
1207 | If NAME is the name of a baseclass type, return that type. */ | |
1208 | ||
1209 | struct type * | |
fba45db2 | 1210 | lookup_struct_elt_type (struct type *type, char *name, int noerr) |
c906108c SS |
1211 | { |
1212 | int i; | |
1213 | ||
1214 | for (;;) | |
1215 | { | |
1216 | CHECK_TYPEDEF (type); | |
1217 | if (TYPE_CODE (type) != TYPE_CODE_PTR | |
1218 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1219 | break; | |
1220 | type = TYPE_TARGET_TYPE (type); | |
1221 | } | |
1222 | ||
687d6395 MS |
1223 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
1224 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
c906108c SS |
1225 | { |
1226 | target_terminal_ours (); | |
1227 | gdb_flush (gdb_stdout); | |
1228 | fprintf_unfiltered (gdb_stderr, "Type "); | |
1229 | type_print (type, "", gdb_stderr, -1); | |
8a3fe4f8 | 1230 | error (_(" is not a structure or union type.")); |
c906108c SS |
1231 | } |
1232 | ||
1233 | #if 0 | |
7ba81444 MS |
1234 | /* FIXME: This change put in by Michael seems incorrect for the case |
1235 | where the structure tag name is the same as the member name. | |
1236 | I.E. when doing "ptype bell->bar" for "struct foo { int bar; int | |
1237 | foo; } bell;" Disabled by fnf. */ | |
c906108c SS |
1238 | { |
1239 | char *typename; | |
1240 | ||
1241 | typename = type_name_no_tag (type); | |
762f08a3 | 1242 | if (typename != NULL && strcmp (typename, name) == 0) |
c906108c SS |
1243 | return type; |
1244 | } | |
1245 | #endif | |
1246 | ||
1247 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1248 | { | |
1249 | char *t_field_name = TYPE_FIELD_NAME (type, i); | |
1250 | ||
db577aea | 1251 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c SS |
1252 | { |
1253 | return TYPE_FIELD_TYPE (type, i); | |
1254 | } | |
1255 | } | |
1256 | ||
1257 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1258 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1259 | { | |
1260 | struct type *t; | |
1261 | ||
9733fc94 | 1262 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 1); |
c906108c SS |
1263 | if (t != NULL) |
1264 | { | |
1265 | return t; | |
1266 | } | |
1267 | } | |
1268 | ||
1269 | if (noerr) | |
1270 | { | |
1271 | return NULL; | |
1272 | } | |
c5aa993b | 1273 | |
c906108c SS |
1274 | target_terminal_ours (); |
1275 | gdb_flush (gdb_stdout); | |
1276 | fprintf_unfiltered (gdb_stderr, "Type "); | |
1277 | type_print (type, "", gdb_stderr, -1); | |
1278 | fprintf_unfiltered (gdb_stderr, " has no component named "); | |
1279 | fputs_filtered (name, gdb_stderr); | |
8a3fe4f8 | 1280 | error ((".")); |
c5aa993b | 1281 | return (struct type *) -1; /* For lint */ |
c906108c SS |
1282 | } |
1283 | ||
1284 | /* If possible, make the vptr_fieldno and vptr_basetype fields of TYPE | |
1285 | valid. Callers should be aware that in some cases (for example, | |
1286 | the type or one of its baseclasses is a stub type and we are | |
7ba81444 MS |
1287 | debugging a .o file), this function will not be able to find the |
1288 | virtual function table pointer, and vptr_fieldno will remain -1 and | |
1289 | vptr_basetype will remain NULL. */ | |
c906108c SS |
1290 | |
1291 | void | |
fba45db2 | 1292 | fill_in_vptr_fieldno (struct type *type) |
c906108c SS |
1293 | { |
1294 | CHECK_TYPEDEF (type); | |
1295 | ||
1296 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1297 | { | |
1298 | int i; | |
1299 | ||
7ba81444 MS |
1300 | /* We must start at zero in case the first (and only) baseclass |
1301 | is virtual (and hence we cannot share the table pointer). */ | |
c906108c SS |
1302 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1303 | { | |
7ba81444 MS |
1304 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, |
1305 | i)); | |
cef4f5dd DJ |
1306 | fill_in_vptr_fieldno (baseclass); |
1307 | if (TYPE_VPTR_FIELDNO (baseclass) >= 0) | |
c906108c | 1308 | { |
cef4f5dd DJ |
1309 | TYPE_VPTR_FIELDNO (type) = TYPE_VPTR_FIELDNO (baseclass); |
1310 | TYPE_VPTR_BASETYPE (type) = TYPE_VPTR_BASETYPE (baseclass); | |
c906108c SS |
1311 | break; |
1312 | } | |
1313 | } | |
1314 | } | |
1315 | } | |
1316 | ||
1317 | /* Find the method and field indices for the destructor in class type T. | |
1318 | Return 1 if the destructor was found, otherwise, return 0. */ | |
1319 | ||
1320 | int | |
7ba81444 MS |
1321 | get_destructor_fn_field (struct type *t, |
1322 | int *method_indexp, | |
1323 | int *field_indexp) | |
c906108c SS |
1324 | { |
1325 | int i; | |
1326 | ||
1327 | for (i = 0; i < TYPE_NFN_FIELDS (t); i++) | |
1328 | { | |
1329 | int j; | |
1330 | struct fn_field *f = TYPE_FN_FIELDLIST1 (t, i); | |
1331 | ||
1332 | for (j = 0; j < TYPE_FN_FIELDLIST_LENGTH (t, i); j++) | |
1333 | { | |
015a42b4 | 1334 | if (is_destructor_name (TYPE_FN_FIELD_PHYSNAME (f, j)) != 0) |
c906108c SS |
1335 | { |
1336 | *method_indexp = i; | |
1337 | *field_indexp = j; | |
1338 | return 1; | |
1339 | } | |
1340 | } | |
1341 | } | |
1342 | return 0; | |
1343 | } | |
1344 | ||
44e1a9eb DJ |
1345 | static void |
1346 | stub_noname_complaint (void) | |
1347 | { | |
e2e0b3e5 | 1348 | complaint (&symfile_complaints, _("stub type has NULL name")); |
44e1a9eb DJ |
1349 | } |
1350 | ||
c906108c SS |
1351 | /* Added by Bryan Boreham, Kewill, Sun Sep 17 18:07:17 1989. |
1352 | ||
1353 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
1354 | we can find a full definition in some other file. If so, copy this | |
7ba81444 MS |
1355 | definition, so we can use it in future. There used to be a comment |
1356 | (but not any code) that if we don't find a full definition, we'd | |
1357 | set a flag so we don't spend time in the future checking the same | |
1358 | type. That would be a mistake, though--we might load in more | |
1359 | symbols which contain a full definition for the type. | |
c906108c | 1360 | |
7b83ea04 | 1361 | This used to be coded as a macro, but I don't think it is called |
c906108c SS |
1362 | often enough to merit such treatment. */ |
1363 | ||
7ba81444 MS |
1364 | /* Find the real type of TYPE. This function returns the real type, |
1365 | after removing all layers of typedefs and completing opaque or stub | |
1366 | types. Completion changes the TYPE argument, but stripping of | |
1367 | typedefs does not. */ | |
c906108c SS |
1368 | |
1369 | struct type * | |
a02fd225 | 1370 | check_typedef (struct type *type) |
c906108c SS |
1371 | { |
1372 | struct type *orig_type = type; | |
a02fd225 DJ |
1373 | int is_const, is_volatile; |
1374 | ||
423c0af8 MS |
1375 | gdb_assert (type); |
1376 | ||
c906108c SS |
1377 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
1378 | { | |
1379 | if (!TYPE_TARGET_TYPE (type)) | |
1380 | { | |
c5aa993b | 1381 | char *name; |
c906108c SS |
1382 | struct symbol *sym; |
1383 | ||
1384 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 1385 | reading a symtab. Infinite recursion is one danger. */ |
c906108c SS |
1386 | if (currently_reading_symtab) |
1387 | return type; | |
1388 | ||
1389 | name = type_name_no_tag (type); | |
7ba81444 MS |
1390 | /* FIXME: shouldn't we separately check the TYPE_NAME and |
1391 | the TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or | |
1392 | VAR_DOMAIN as appropriate? (this code was written before | |
1393 | TYPE_NAME and TYPE_TAG_NAME were separate). */ | |
c906108c SS |
1394 | if (name == NULL) |
1395 | { | |
23136709 | 1396 | stub_noname_complaint (); |
c906108c SS |
1397 | return type; |
1398 | } | |
176620f1 | 1399 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0, |
c906108c SS |
1400 | (struct symtab **) NULL); |
1401 | if (sym) | |
1402 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
7ba81444 MS |
1403 | else /* TYPE_CODE_UNDEF */ |
1404 | TYPE_TARGET_TYPE (type) = alloc_type (NULL); | |
c906108c SS |
1405 | } |
1406 | type = TYPE_TARGET_TYPE (type); | |
1407 | } | |
1408 | ||
a02fd225 DJ |
1409 | is_const = TYPE_CONST (type); |
1410 | is_volatile = TYPE_VOLATILE (type); | |
1411 | ||
7ba81444 MS |
1412 | /* If this is a struct/class/union with no fields, then check |
1413 | whether a full definition exists somewhere else. This is for | |
1414 | systems where a type definition with no fields is issued for such | |
1415 | types, instead of identifying them as stub types in the first | |
1416 | place. */ | |
c5aa993b | 1417 | |
7ba81444 MS |
1418 | if (TYPE_IS_OPAQUE (type) |
1419 | && opaque_type_resolution | |
1420 | && !currently_reading_symtab) | |
c906108c | 1421 | { |
c5aa993b JM |
1422 | char *name = type_name_no_tag (type); |
1423 | struct type *newtype; | |
c906108c SS |
1424 | if (name == NULL) |
1425 | { | |
23136709 | 1426 | stub_noname_complaint (); |
c906108c SS |
1427 | return type; |
1428 | } | |
1429 | newtype = lookup_transparent_type (name); | |
ad766c0a | 1430 | |
c906108c | 1431 | if (newtype) |
ad766c0a | 1432 | { |
7ba81444 MS |
1433 | /* If the resolved type and the stub are in the same |
1434 | objfile, then replace the stub type with the real deal. | |
1435 | But if they're in separate objfiles, leave the stub | |
1436 | alone; we'll just look up the transparent type every time | |
1437 | we call check_typedef. We can't create pointers between | |
1438 | types allocated to different objfiles, since they may | |
1439 | have different lifetimes. Trying to copy NEWTYPE over to | |
1440 | TYPE's objfile is pointless, too, since you'll have to | |
1441 | move over any other types NEWTYPE refers to, which could | |
1442 | be an unbounded amount of stuff. */ | |
ad766c0a JB |
1443 | if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
1444 | make_cv_type (is_const, is_volatile, newtype, &type); | |
1445 | else | |
1446 | type = newtype; | |
1447 | } | |
c906108c | 1448 | } |
7ba81444 MS |
1449 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
1450 | types. */ | |
74a9bb82 | 1451 | else if (TYPE_STUB (type) && !currently_reading_symtab) |
c906108c | 1452 | { |
c5aa993b | 1453 | char *name = type_name_no_tag (type); |
c906108c | 1454 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
176620f1 | 1455 | TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or VAR_DOMAIN |
7b83ea04 AC |
1456 | as appropriate? (this code was written before TYPE_NAME and |
1457 | TYPE_TAG_NAME were separate). */ | |
c906108c SS |
1458 | struct symbol *sym; |
1459 | if (name == NULL) | |
1460 | { | |
23136709 | 1461 | stub_noname_complaint (); |
c906108c SS |
1462 | return type; |
1463 | } | |
7ba81444 MS |
1464 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, |
1465 | 0, (struct symtab **) NULL); | |
c906108c | 1466 | if (sym) |
c26f2453 JB |
1467 | { |
1468 | /* Same as above for opaque types, we can replace the stub | |
1469 | with the complete type only if they are int the same | |
1470 | objfile. */ | |
1471 | if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type)) | |
7ba81444 MS |
1472 | make_cv_type (is_const, is_volatile, |
1473 | SYMBOL_TYPE (sym), &type); | |
c26f2453 JB |
1474 | else |
1475 | type = SYMBOL_TYPE (sym); | |
1476 | } | |
c906108c SS |
1477 | } |
1478 | ||
74a9bb82 | 1479 | if (TYPE_TARGET_STUB (type)) |
c906108c SS |
1480 | { |
1481 | struct type *range_type; | |
1482 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1483 | ||
74a9bb82 | 1484 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
c5aa993b | 1485 | { |
7ba81444 | 1486 | /* Empty. */ |
c5aa993b | 1487 | } |
c906108c SS |
1488 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY |
1489 | && TYPE_NFIELDS (type) == 1 | |
1490 | && (TYPE_CODE (range_type = TYPE_FIELD_TYPE (type, 0)) | |
1491 | == TYPE_CODE_RANGE)) | |
1492 | { | |
1493 | /* Now recompute the length of the array type, based on its | |
1494 | number of elements and the target type's length. */ | |
1495 | TYPE_LENGTH (type) = | |
1496 | ((TYPE_FIELD_BITPOS (range_type, 1) | |
7ba81444 | 1497 | - TYPE_FIELD_BITPOS (range_type, 0) + 1) |
c906108c SS |
1498 | * TYPE_LENGTH (target_type)); |
1499 | TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB; | |
1500 | } | |
1501 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) | |
1502 | { | |
1503 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
1504 | TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB; | |
1505 | } | |
1506 | } | |
7ba81444 | 1507 | /* Cache TYPE_LENGTH for future use. */ |
c906108c SS |
1508 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
1509 | return type; | |
1510 | } | |
1511 | ||
7ba81444 MS |
1512 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
1513 | occurs, silently return builtin_type_void. */ | |
c91ecb25 | 1514 | |
b9362cc7 | 1515 | static struct type * |
c91ecb25 ND |
1516 | safe_parse_type (char *p, int length) |
1517 | { | |
1518 | struct ui_file *saved_gdb_stderr; | |
1519 | struct type *type; | |
1520 | ||
7ba81444 | 1521 | /* Suppress error messages. */ |
c91ecb25 ND |
1522 | saved_gdb_stderr = gdb_stderr; |
1523 | gdb_stderr = ui_file_new (); | |
1524 | ||
7ba81444 | 1525 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
c91ecb25 ND |
1526 | if (!gdb_parse_and_eval_type (p, length, &type)) |
1527 | type = builtin_type_void; | |
1528 | ||
7ba81444 | 1529 | /* Stop suppressing error messages. */ |
c91ecb25 ND |
1530 | ui_file_delete (gdb_stderr); |
1531 | gdb_stderr = saved_gdb_stderr; | |
1532 | ||
1533 | return type; | |
1534 | } | |
1535 | ||
c906108c SS |
1536 | /* Ugly hack to convert method stubs into method types. |
1537 | ||
7ba81444 MS |
1538 | He ain't kiddin'. This demangles the name of the method into a |
1539 | string including argument types, parses out each argument type, | |
1540 | generates a string casting a zero to that type, evaluates the | |
1541 | string, and stuffs the resulting type into an argtype vector!!! | |
1542 | Then it knows the type of the whole function (including argument | |
1543 | types for overloading), which info used to be in the stab's but was | |
1544 | removed to hack back the space required for them. */ | |
c906108c | 1545 | |
de17c821 | 1546 | static void |
fba45db2 | 1547 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c SS |
1548 | { |
1549 | struct fn_field *f; | |
1550 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
1551 | char *demangled_name = cplus_demangle (mangled_name, | |
1552 | DMGL_PARAMS | DMGL_ANSI); | |
1553 | char *argtypetext, *p; | |
1554 | int depth = 0, argcount = 1; | |
ad2f7632 | 1555 | struct field *argtypes; |
c906108c SS |
1556 | struct type *mtype; |
1557 | ||
1558 | /* Make sure we got back a function string that we can use. */ | |
1559 | if (demangled_name) | |
1560 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
1561 | else |
1562 | p = NULL; | |
c906108c SS |
1563 | |
1564 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
1565 | error (_("Internal: Cannot demangle mangled name `%s'."), |
1566 | mangled_name); | |
c906108c SS |
1567 | |
1568 | /* Now, read in the parameters that define this type. */ | |
1569 | p += 1; | |
1570 | argtypetext = p; | |
1571 | while (*p) | |
1572 | { | |
070ad9f0 | 1573 | if (*p == '(' || *p == '<') |
c906108c SS |
1574 | { |
1575 | depth += 1; | |
1576 | } | |
070ad9f0 | 1577 | else if (*p == ')' || *p == '>') |
c906108c SS |
1578 | { |
1579 | depth -= 1; | |
1580 | } | |
1581 | else if (*p == ',' && depth == 0) | |
1582 | { | |
1583 | argcount += 1; | |
1584 | } | |
1585 | ||
1586 | p += 1; | |
1587 | } | |
1588 | ||
ad2f7632 DJ |
1589 | /* If we read one argument and it was ``void'', don't count it. */ |
1590 | if (strncmp (argtypetext, "(void)", 6) == 0) | |
1591 | argcount -= 1; | |
c906108c | 1592 | |
ad2f7632 DJ |
1593 | /* We need one extra slot, for the THIS pointer. */ |
1594 | ||
1595 | argtypes = (struct field *) | |
1596 | TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); | |
c906108c | 1597 | p = argtypetext; |
4a1970e4 DJ |
1598 | |
1599 | /* Add THIS pointer for non-static methods. */ | |
1600 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
1601 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
1602 | argcount = 0; | |
1603 | else | |
1604 | { | |
ad2f7632 | 1605 | argtypes[0].type = lookup_pointer_type (type); |
4a1970e4 DJ |
1606 | argcount = 1; |
1607 | } | |
c906108c | 1608 | |
c5aa993b | 1609 | if (*p != ')') /* () means no args, skip while */ |
c906108c SS |
1610 | { |
1611 | depth = 0; | |
1612 | while (*p) | |
1613 | { | |
1614 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
1615 | { | |
ad2f7632 DJ |
1616 | /* Avoid parsing of ellipsis, they will be handled below. |
1617 | Also avoid ``void'' as above. */ | |
1618 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 | |
1619 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 1620 | { |
ad2f7632 | 1621 | argtypes[argcount].type = |
c91ecb25 | 1622 | safe_parse_type (argtypetext, p - argtypetext); |
c906108c SS |
1623 | argcount += 1; |
1624 | } | |
1625 | argtypetext = p + 1; | |
1626 | } | |
1627 | ||
070ad9f0 | 1628 | if (*p == '(' || *p == '<') |
c906108c SS |
1629 | { |
1630 | depth += 1; | |
1631 | } | |
070ad9f0 | 1632 | else if (*p == ')' || *p == '>') |
c906108c SS |
1633 | { |
1634 | depth -= 1; | |
1635 | } | |
1636 | ||
1637 | p += 1; | |
1638 | } | |
1639 | } | |
1640 | ||
c906108c SS |
1641 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
1642 | ||
1643 | /* Now update the old "stub" type into a real type. */ | |
1644 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
1645 | TYPE_DOMAIN_TYPE (mtype) = type; | |
ad2f7632 DJ |
1646 | TYPE_FIELDS (mtype) = argtypes; |
1647 | TYPE_NFIELDS (mtype) = argcount; | |
c906108c SS |
1648 | TYPE_FLAGS (mtype) &= ~TYPE_FLAG_STUB; |
1649 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; | |
ad2f7632 DJ |
1650 | if (p[-2] == '.') |
1651 | TYPE_FLAGS (mtype) |= TYPE_FLAG_VARARGS; | |
1652 | ||
1653 | xfree (demangled_name); | |
c906108c SS |
1654 | } |
1655 | ||
7ba81444 MS |
1656 | /* This is the external interface to check_stub_method, above. This |
1657 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
1658 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
1659 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
1660 | correct. | |
de17c821 DJ |
1661 | |
1662 | This function unfortunately can not die until stabs do. */ | |
1663 | ||
1664 | void | |
1665 | check_stub_method_group (struct type *type, int method_id) | |
1666 | { | |
1667 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
1668 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
f710f4fc | 1669 | int j, found_stub = 0; |
de17c821 DJ |
1670 | |
1671 | for (j = 0; j < len; j++) | |
1672 | if (TYPE_FN_FIELD_STUB (f, j)) | |
1673 | { | |
1674 | found_stub = 1; | |
1675 | check_stub_method (type, method_id, j); | |
1676 | } | |
1677 | ||
7ba81444 MS |
1678 | /* GNU v3 methods with incorrect names were corrected when we read |
1679 | in type information, because it was cheaper to do it then. The | |
1680 | only GNU v2 methods with incorrect method names are operators and | |
1681 | destructors; destructors were also corrected when we read in type | |
1682 | information. | |
de17c821 DJ |
1683 | |
1684 | Therefore the only thing we need to handle here are v2 operator | |
1685 | names. */ | |
1686 | if (found_stub && strncmp (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z", 2) != 0) | |
1687 | { | |
1688 | int ret; | |
1689 | char dem_opname[256]; | |
1690 | ||
7ba81444 MS |
1691 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
1692 | method_id), | |
de17c821 DJ |
1693 | dem_opname, DMGL_ANSI); |
1694 | if (!ret) | |
7ba81444 MS |
1695 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
1696 | method_id), | |
de17c821 DJ |
1697 | dem_opname, 0); |
1698 | if (ret) | |
1699 | TYPE_FN_FIELDLIST_NAME (type, method_id) = xstrdup (dem_opname); | |
1700 | } | |
1701 | } | |
1702 | ||
c906108c SS |
1703 | const struct cplus_struct_type cplus_struct_default; |
1704 | ||
1705 | void | |
fba45db2 | 1706 | allocate_cplus_struct_type (struct type *type) |
c906108c SS |
1707 | { |
1708 | if (!HAVE_CPLUS_STRUCT (type)) | |
1709 | { | |
1710 | TYPE_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
1711 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
c5aa993b | 1712 | *(TYPE_CPLUS_SPECIFIC (type)) = cplus_struct_default; |
c906108c SS |
1713 | } |
1714 | } | |
1715 | ||
1716 | /* Helper function to initialize the standard scalar types. | |
1717 | ||
7ba81444 MS |
1718 | If NAME is non-NULL and OBJFILE is non-NULL, then we make a copy of |
1719 | the string pointed to by name in the objfile_obstack for that | |
1720 | objfile, and initialize the type name to that copy. There are | |
1721 | places (mipsread.c in particular, where init_type is called with a | |
1722 | NULL value for NAME). */ | |
c906108c SS |
1723 | |
1724 | struct type * | |
7ba81444 MS |
1725 | init_type (enum type_code code, int length, int flags, |
1726 | char *name, struct objfile *objfile) | |
c906108c | 1727 | { |
52f0bd74 | 1728 | struct type *type; |
c906108c SS |
1729 | |
1730 | type = alloc_type (objfile); | |
1731 | TYPE_CODE (type) = code; | |
1732 | TYPE_LENGTH (type) = length; | |
1733 | TYPE_FLAGS (type) |= flags; | |
1734 | if ((name != NULL) && (objfile != NULL)) | |
1735 | { | |
7ba81444 MS |
1736 | TYPE_NAME (type) = obsavestring (name, strlen (name), |
1737 | &objfile->objfile_obstack); | |
c906108c SS |
1738 | } |
1739 | else | |
1740 | { | |
1741 | TYPE_NAME (type) = name; | |
1742 | } | |
1743 | ||
1744 | /* C++ fancies. */ | |
1745 | ||
973ccf8b DJ |
1746 | if (name && strcmp (name, "char") == 0) |
1747 | TYPE_FLAGS (type) |= TYPE_FLAG_NOSIGN; | |
1748 | ||
5c4e30ca DC |
1749 | if (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION |
1750 | || code == TYPE_CODE_NAMESPACE) | |
c906108c SS |
1751 | { |
1752 | INIT_CPLUS_SPECIFIC (type); | |
1753 | } | |
1754 | return (type); | |
1755 | } | |
1756 | ||
0e101458 AC |
1757 | /* Helper function. Create an empty composite type. */ |
1758 | ||
1759 | struct type * | |
1760 | init_composite_type (char *name, enum type_code code) | |
1761 | { | |
1762 | struct type *t; | |
1763 | gdb_assert (code == TYPE_CODE_STRUCT | |
1764 | || code == TYPE_CODE_UNION); | |
1765 | t = init_type (code, 0, 0, NULL, NULL); | |
1766 | TYPE_TAG_NAME (t) = name; | |
1767 | return t; | |
1768 | } | |
1769 | ||
1770 | /* Helper function. Append a field to a composite type. */ | |
1771 | ||
1772 | void | |
7ba81444 MS |
1773 | append_composite_type_field (struct type *t, char *name, |
1774 | struct type *field) | |
0e101458 AC |
1775 | { |
1776 | struct field *f; | |
1777 | TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; | |
1778 | TYPE_FIELDS (t) = xrealloc (TYPE_FIELDS (t), | |
1779 | sizeof (struct field) * TYPE_NFIELDS (t)); | |
1780 | f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); | |
1781 | memset (f, 0, sizeof f[0]); | |
1782 | FIELD_TYPE (f[0]) = field; | |
1783 | FIELD_NAME (f[0]) = name; | |
1784 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
1785 | { | |
73d322b1 | 1786 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) |
0e101458 AC |
1787 | TYPE_LENGTH (t) = TYPE_LENGTH (field); |
1788 | } | |
1789 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
1790 | { | |
1791 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
1792 | if (TYPE_NFIELDS (t) > 1) | |
1793 | { | |
1794 | FIELD_BITPOS (f[0]) = (FIELD_BITPOS (f[-1]) | |
1795 | + TYPE_LENGTH (field) * TARGET_CHAR_BIT); | |
1796 | } | |
1797 | } | |
1798 | } | |
1799 | ||
c906108c SS |
1800 | /* Look up a fundamental type for the specified objfile. |
1801 | May need to construct such a type if this is the first use. | |
1802 | ||
1803 | Some object file formats (ELF, COFF, etc) do not define fundamental | |
1804 | types such as "int" or "double". Others (stabs for example), do | |
1805 | define fundamental types. | |
1806 | ||
7ba81444 MS |
1807 | For the formats which don't provide fundamental types, gdb can |
1808 | create such types, using defaults reasonable for the current | |
1809 | language and the current target machine. | |
c906108c | 1810 | |
7ba81444 | 1811 | NOTE: This routine is obsolescent. Each debugging format reader |
c906108c SS |
1812 | should manage it's own fundamental types, either creating them from |
1813 | suitable defaults or reading them from the debugging information, | |
7ba81444 MS |
1814 | whichever is appropriate. The DWARF reader has already been fixed |
1815 | to do this. Once the other readers are fixed, this routine will go | |
1816 | away. Also note that fundamental types should be managed on a | |
1817 | compilation unit basis in a multi-language environment, not on a | |
1818 | linkage unit basis as is done here. */ | |
c906108c SS |
1819 | |
1820 | ||
1821 | struct type * | |
fba45db2 | 1822 | lookup_fundamental_type (struct objfile *objfile, int typeid) |
c906108c | 1823 | { |
52f0bd74 AC |
1824 | struct type **typep; |
1825 | int nbytes; | |
c906108c SS |
1826 | |
1827 | if (typeid < 0 || typeid >= FT_NUM_MEMBERS) | |
1828 | { | |
7ba81444 MS |
1829 | error (_("internal error - invalid fundamental type id %d"), |
1830 | typeid); | |
c906108c SS |
1831 | } |
1832 | ||
7ba81444 MS |
1833 | /* If this is the first time we need a fundamental type for this |
1834 | objfile then we need to initialize the vector of type | |
1835 | pointers. */ | |
c5aa993b JM |
1836 | |
1837 | if (objfile->fundamental_types == NULL) | |
c906108c SS |
1838 | { |
1839 | nbytes = FT_NUM_MEMBERS * sizeof (struct type *); | |
c5aa993b | 1840 | objfile->fundamental_types = (struct type **) |
b99607ea | 1841 | obstack_alloc (&objfile->objfile_obstack, nbytes); |
c5aa993b | 1842 | memset ((char *) objfile->fundamental_types, 0, nbytes); |
c906108c SS |
1843 | OBJSTAT (objfile, n_types += FT_NUM_MEMBERS); |
1844 | } | |
1845 | ||
7ba81444 MS |
1846 | /* Look for this particular type in the fundamental type vector. If |
1847 | one is not found, create and install one appropriate for the | |
1848 | current language. */ | |
c906108c | 1849 | |
c5aa993b | 1850 | typep = objfile->fundamental_types + typeid; |
c906108c SS |
1851 | if (*typep == NULL) |
1852 | { | |
1853 | *typep = create_fundamental_type (objfile, typeid); | |
1854 | } | |
1855 | ||
1856 | return (*typep); | |
1857 | } | |
1858 | ||
1859 | int | |
fba45db2 | 1860 | can_dereference (struct type *t) |
c906108c | 1861 | { |
7ba81444 MS |
1862 | /* FIXME: Should we return true for references as well as |
1863 | pointers? */ | |
c906108c SS |
1864 | CHECK_TYPEDEF (t); |
1865 | return | |
1866 | (t != NULL | |
1867 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
1868 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
1869 | } | |
1870 | ||
adf40b2e | 1871 | int |
fba45db2 | 1872 | is_integral_type (struct type *t) |
adf40b2e JM |
1873 | { |
1874 | CHECK_TYPEDEF (t); | |
1875 | return | |
1876 | ((t != NULL) | |
d4f3574e SS |
1877 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
1878 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
4f2aea11 | 1879 | || (TYPE_CODE (t) == TYPE_CODE_FLAGS) |
d4f3574e SS |
1880 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) |
1881 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
1882 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
1883 | } |
1884 | ||
7b83ea04 | 1885 | /* Check whether BASE is an ancestor or base class or DCLASS |
c906108c SS |
1886 | Return 1 if so, and 0 if not. |
1887 | Note: callers may want to check for identity of the types before | |
1888 | calling this function -- identical types are considered to satisfy | |
7ba81444 | 1889 | the ancestor relationship even if they're identical. */ |
c906108c SS |
1890 | |
1891 | int | |
fba45db2 | 1892 | is_ancestor (struct type *base, struct type *dclass) |
c906108c SS |
1893 | { |
1894 | int i; | |
c5aa993b | 1895 | |
c906108c SS |
1896 | CHECK_TYPEDEF (base); |
1897 | CHECK_TYPEDEF (dclass); | |
1898 | ||
1899 | if (base == dclass) | |
1900 | return 1; | |
687d6395 MS |
1901 | if (TYPE_NAME (base) && TYPE_NAME (dclass) |
1902 | && !strcmp (TYPE_NAME (base), TYPE_NAME (dclass))) | |
6b1ba9a0 | 1903 | return 1; |
c906108c SS |
1904 | |
1905 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1906 | if (is_ancestor (base, TYPE_BASECLASS (dclass, i))) | |
1907 | return 1; | |
1908 | ||
1909 | return 0; | |
1910 | } | |
1911 | ||
1912 | ||
1913 | ||
1914 | /* See whether DCLASS has a virtual table. This routine is aimed at | |
1915 | the HP/Taligent ANSI C++ runtime model, and may not work with other | |
1916 | runtime models. Return 1 => Yes, 0 => No. */ | |
1917 | ||
1918 | int | |
fba45db2 | 1919 | has_vtable (struct type *dclass) |
c906108c SS |
1920 | { |
1921 | /* In the HP ANSI C++ runtime model, a class has a vtable only if it | |
1922 | has virtual functions or virtual bases. */ | |
1923 | ||
52f0bd74 | 1924 | int i; |
c906108c | 1925 | |
c5aa993b | 1926 | if (TYPE_CODE (dclass) != TYPE_CODE_CLASS) |
c906108c | 1927 | return 0; |
c5aa993b | 1928 | |
7ba81444 | 1929 | /* First check for the presence of virtual bases. */ |
c5aa993b JM |
1930 | if (TYPE_FIELD_VIRTUAL_BITS (dclass)) |
1931 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1932 | if (B_TST (TYPE_FIELD_VIRTUAL_BITS (dclass), i)) | |
1933 | return 1; | |
1934 | ||
7ba81444 | 1935 | /* Next check for virtual functions. */ |
c5aa993b JM |
1936 | if (TYPE_FN_FIELDLISTS (dclass)) |
1937 | for (i = 0; i < TYPE_NFN_FIELDS (dclass); i++) | |
1938 | if (TYPE_FN_FIELD_VIRTUAL_P (TYPE_FN_FIELDLIST1 (dclass, i), 0)) | |
c906108c | 1939 | return 1; |
c5aa993b | 1940 | |
7ba81444 MS |
1941 | /* Recurse on non-virtual bases to see if any of them needs a |
1942 | vtable. */ | |
c5aa993b JM |
1943 | if (TYPE_FIELD_VIRTUAL_BITS (dclass)) |
1944 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
687d6395 MS |
1945 | if ((!B_TST (TYPE_FIELD_VIRTUAL_BITS (dclass), i)) |
1946 | && (has_vtable (TYPE_FIELD_TYPE (dclass, i)))) | |
c5aa993b JM |
1947 | return 1; |
1948 | ||
7ba81444 | 1949 | /* Well, maybe we don't need a virtual table. */ |
c906108c SS |
1950 | return 0; |
1951 | } | |
1952 | ||
1953 | /* Return a pointer to the "primary base class" of DCLASS. | |
c5aa993b | 1954 | |
c906108c SS |
1955 | A NULL return indicates that DCLASS has no primary base, or that it |
1956 | couldn't be found (insufficient information). | |
c5aa993b | 1957 | |
c906108c SS |
1958 | This routine is aimed at the HP/Taligent ANSI C++ runtime model, |
1959 | and may not work with other runtime models. */ | |
1960 | ||
1961 | struct type * | |
fba45db2 | 1962 | primary_base_class (struct type *dclass) |
c906108c SS |
1963 | { |
1964 | /* In HP ANSI C++'s runtime model, a "primary base class" of a class | |
1965 | is the first directly inherited, non-virtual base class that | |
7ba81444 | 1966 | requires a virtual table. */ |
c906108c | 1967 | |
52f0bd74 | 1968 | int i; |
c906108c | 1969 | |
c5aa993b | 1970 | if (TYPE_CODE (dclass) != TYPE_CODE_CLASS) |
c906108c SS |
1971 | return NULL; |
1972 | ||
c5aa993b | 1973 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) |
687d6395 MS |
1974 | if (!TYPE_FIELD_VIRTUAL (dclass, i) |
1975 | && has_vtable (TYPE_FIELD_TYPE (dclass, i))) | |
c5aa993b | 1976 | return TYPE_FIELD_TYPE (dclass, i); |
c906108c SS |
1977 | |
1978 | return NULL; | |
1979 | } | |
1980 | ||
7ba81444 | 1981 | /* Global manipulated by virtual_base_list[_aux](). */ |
c906108c | 1982 | |
c5aa993b | 1983 | static struct vbase *current_vbase_list = NULL; |
c906108c | 1984 | |
7ba81444 MS |
1985 | /* Return a pointer to a null-terminated list of struct vbase items. |
1986 | The vbasetype pointer of each item in the list points to the type | |
1987 | information for a virtual base of the argument DCLASS. | |
c5aa993b | 1988 | |
7b83ea04 | 1989 | Helper function for virtual_base_list(). |
7ba81444 MS |
1990 | Note: the list goes backward, right-to-left. |
1991 | virtual_base_list() copies the items out in reverse order. */ | |
c906108c | 1992 | |
7a292a7a | 1993 | static void |
fba45db2 | 1994 | virtual_base_list_aux (struct type *dclass) |
c906108c | 1995 | { |
c5aa993b | 1996 | struct vbase *tmp_vbase; |
52f0bd74 | 1997 | int i; |
c906108c | 1998 | |
c5aa993b | 1999 | if (TYPE_CODE (dclass) != TYPE_CODE_CLASS) |
7a292a7a | 2000 | return; |
c906108c SS |
2001 | |
2002 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
2003 | { | |
2004 | /* Recurse on this ancestor, first */ | |
c5aa993b | 2005 | virtual_base_list_aux (TYPE_FIELD_TYPE (dclass, i)); |
c906108c SS |
2006 | |
2007 | /* If this current base is itself virtual, add it to the list */ | |
c5aa993b JM |
2008 | if (BASETYPE_VIA_VIRTUAL (dclass, i)) |
2009 | { | |
2010 | struct type *basetype = TYPE_FIELD_TYPE (dclass, i); | |
2011 | ||
2012 | /* Check if base already recorded */ | |
2013 | tmp_vbase = current_vbase_list; | |
2014 | while (tmp_vbase) | |
2015 | { | |
2016 | if (tmp_vbase->vbasetype == basetype) | |
2017 | break; /* found it */ | |
2018 | tmp_vbase = tmp_vbase->next; | |
2019 | } | |
2020 | ||
2021 | if (!tmp_vbase) /* normal exit from loop */ | |
2022 | { | |
2023 | /* Allocate new item for this virtual base */ | |
2024 | tmp_vbase = (struct vbase *) xmalloc (sizeof (struct vbase)); | |
2025 | ||
2026 | /* Stick it on at the end of the list */ | |
2027 | tmp_vbase->vbasetype = basetype; | |
2028 | tmp_vbase->next = current_vbase_list; | |
2029 | current_vbase_list = tmp_vbase; | |
2030 | } | |
2031 | } /* if virtual */ | |
2032 | } /* for loop over bases */ | |
c906108c SS |
2033 | } |
2034 | ||
2035 | ||
2036 | /* Compute the list of virtual bases in the right order. Virtual | |
2037 | bases are laid out in the object's memory area in order of their | |
2038 | occurrence in a depth-first, left-to-right search through the | |
2039 | ancestors. | |
c5aa993b | 2040 | |
c906108c SS |
2041 | Argument DCLASS is the type whose virtual bases are required. |
2042 | Return value is the address of a null-terminated array of pointers | |
2043 | to struct type items. | |
c5aa993b | 2044 | |
c906108c SS |
2045 | This routine is aimed at the HP/Taligent ANSI C++ runtime model, |
2046 | and may not work with other runtime models. | |
c5aa993b | 2047 | |
c906108c SS |
2048 | This routine merely hands off the argument to virtual_base_list_aux() |
2049 | and then copies the result into an array to save space. */ | |
2050 | ||
0bd9908d | 2051 | static struct type ** |
fba45db2 | 2052 | virtual_base_list (struct type *dclass) |
c906108c | 2053 | { |
52f0bd74 AC |
2054 | struct vbase *tmp_vbase; |
2055 | struct vbase *tmp_vbase_2; | |
2056 | int i; | |
c906108c | 2057 | int count; |
c5aa993b | 2058 | struct type **vbase_array; |
c906108c SS |
2059 | |
2060 | current_vbase_list = NULL; | |
c5aa993b | 2061 | virtual_base_list_aux (dclass); |
c906108c | 2062 | |
7ba81444 MS |
2063 | for (i = 0, tmp_vbase = current_vbase_list; |
2064 | tmp_vbase != NULL; | |
2065 | i++, tmp_vbase = tmp_vbase->next) | |
c906108c SS |
2066 | /* no body */ ; |
2067 | ||
2068 | count = i; | |
2069 | ||
7ba81444 MS |
2070 | vbase_array = (struct type **) |
2071 | xmalloc ((count + 1) * sizeof (struct type *)); | |
c906108c | 2072 | |
7ba81444 MS |
2073 | for (i = count - 1, tmp_vbase = current_vbase_list; |
2074 | i >= 0; i--, | |
2075 | tmp_vbase = tmp_vbase->next) | |
c906108c SS |
2076 | vbase_array[i] = tmp_vbase->vbasetype; |
2077 | ||
7ba81444 | 2078 | /* Get rid of constructed chain. */ |
c906108c SS |
2079 | tmp_vbase_2 = tmp_vbase = current_vbase_list; |
2080 | while (tmp_vbase) | |
2081 | { | |
2082 | tmp_vbase = tmp_vbase->next; | |
b8c9b27d | 2083 | xfree (tmp_vbase_2); |
c906108c SS |
2084 | tmp_vbase_2 = tmp_vbase; |
2085 | } | |
c5aa993b | 2086 | |
c906108c SS |
2087 | vbase_array[count] = NULL; |
2088 | return vbase_array; | |
2089 | } | |
2090 | ||
2091 | /* Return the length of the virtual base list of the type DCLASS. */ | |
2092 | ||
2093 | int | |
fba45db2 | 2094 | virtual_base_list_length (struct type *dclass) |
c906108c | 2095 | { |
52f0bd74 AC |
2096 | int i; |
2097 | struct vbase *tmp_vbase; | |
c5aa993b | 2098 | |
c906108c | 2099 | current_vbase_list = NULL; |
c5aa993b | 2100 | virtual_base_list_aux (dclass); |
c906108c | 2101 | |
7ba81444 MS |
2102 | for (i = 0, tmp_vbase = current_vbase_list; |
2103 | tmp_vbase != NULL; | |
2104 | i++, tmp_vbase = tmp_vbase->next) | |
c906108c SS |
2105 | /* no body */ ; |
2106 | return i; | |
2107 | } | |
2108 | ||
2109 | /* Return the number of elements of the virtual base list of the type | |
2110 | DCLASS, ignoring those appearing in the primary base (and its | |
2111 | primary base, recursively). */ | |
2112 | ||
2113 | int | |
fba45db2 | 2114 | virtual_base_list_length_skip_primaries (struct type *dclass) |
c906108c | 2115 | { |
52f0bd74 AC |
2116 | int i; |
2117 | struct vbase *tmp_vbase; | |
c5aa993b | 2118 | struct type *primary; |
c906108c SS |
2119 | |
2120 | primary = TYPE_RUNTIME_PTR (dclass) ? TYPE_PRIMARY_BASE (dclass) : NULL; | |
2121 | ||
2122 | if (!primary) | |
2123 | return virtual_base_list_length (dclass); | |
2124 | ||
2125 | current_vbase_list = NULL; | |
c5aa993b | 2126 | virtual_base_list_aux (dclass); |
c906108c | 2127 | |
7ba81444 MS |
2128 | for (i = 0, tmp_vbase = current_vbase_list; |
2129 | tmp_vbase != NULL; | |
2130 | tmp_vbase = tmp_vbase->next) | |
c906108c SS |
2131 | { |
2132 | if (virtual_base_index (tmp_vbase->vbasetype, primary) >= 0) | |
c5aa993b | 2133 | continue; |
c906108c SS |
2134 | i++; |
2135 | } | |
2136 | return i; | |
2137 | } | |
2138 | ||
c906108c SS |
2139 | /* Return the index (position) of type BASE, which is a virtual base |
2140 | class of DCLASS, in the latter's virtual base list. A return of -1 | |
2141 | indicates "not found" or a problem. */ | |
2142 | ||
2143 | int | |
fba45db2 | 2144 | virtual_base_index (struct type *base, struct type *dclass) |
c906108c | 2145 | { |
0bd9908d | 2146 | struct type *vbase, **vbase_list; |
52f0bd74 | 2147 | int i; |
c906108c | 2148 | |
687d6395 MS |
2149 | if ((TYPE_CODE (dclass) != TYPE_CODE_CLASS) |
2150 | || (TYPE_CODE (base) != TYPE_CODE_CLASS)) | |
c906108c SS |
2151 | return -1; |
2152 | ||
0bd9908d MS |
2153 | vbase_list = virtual_base_list (dclass); |
2154 | for (i = 0, vbase = vbase_list[0]; | |
2155 | vbase != NULL; | |
2156 | vbase = vbase_list[++i]) | |
2157 | if (vbase == base) | |
2158 | break; | |
c906108c | 2159 | |
0bd9908d | 2160 | xfree (vbase_list); |
c906108c SS |
2161 | return vbase ? i : -1; |
2162 | } | |
2163 | ||
c906108c | 2164 | /* Return the index (position) of type BASE, which is a virtual base |
7ba81444 | 2165 | class of DCLASS, in the latter's virtual base list. Skip over all |
c906108c SS |
2166 | bases that may appear in the virtual base list of the primary base |
2167 | class of DCLASS (recursively). A return of -1 indicates "not | |
2168 | found" or a problem. */ | |
2169 | ||
2170 | int | |
7ba81444 MS |
2171 | virtual_base_index_skip_primaries (struct type *base, |
2172 | struct type *dclass) | |
c906108c | 2173 | { |
0bd9908d | 2174 | struct type *vbase, **vbase_list; |
52f0bd74 | 2175 | int i, j; |
c5aa993b | 2176 | struct type *primary; |
c906108c | 2177 | |
687d6395 MS |
2178 | if ((TYPE_CODE (dclass) != TYPE_CODE_CLASS) |
2179 | || (TYPE_CODE (base) != TYPE_CODE_CLASS)) | |
c906108c SS |
2180 | return -1; |
2181 | ||
c5aa993b | 2182 | primary = TYPE_RUNTIME_PTR (dclass) ? TYPE_PRIMARY_BASE (dclass) : NULL; |
c906108c | 2183 | |
0bd9908d MS |
2184 | vbase_list = virtual_base_list (dclass); |
2185 | for (i = 0, j = -1, vbase = vbase_list[0]; | |
2186 | vbase != NULL; | |
2187 | vbase = vbase_list[++i]) | |
c906108c | 2188 | { |
7ba81444 MS |
2189 | if (!primary |
2190 | || (virtual_base_index_skip_primaries (vbase, primary) < 0)) | |
c5aa993b | 2191 | j++; |
c906108c | 2192 | if (vbase == base) |
c5aa993b | 2193 | break; |
c906108c | 2194 | } |
0bd9908d | 2195 | xfree (vbase_list); |
c906108c SS |
2196 | return vbase ? j : -1; |
2197 | } | |
2198 | ||
7ba81444 MS |
2199 | /* Return position of a derived class DCLASS in the list of primary |
2200 | bases starting with the remotest ancestor. Position returned is | |
2201 | 0-based. */ | |
c906108c SS |
2202 | |
2203 | int | |
fba45db2 | 2204 | class_index_in_primary_list (struct type *dclass) |
c906108c | 2205 | { |
c5aa993b | 2206 | struct type *pbc; /* primary base class */ |
c906108c | 2207 | |
c5aa993b | 2208 | /* Simply recurse on primary base */ |
c906108c SS |
2209 | pbc = TYPE_PRIMARY_BASE (dclass); |
2210 | if (pbc) | |
2211 | return 1 + class_index_in_primary_list (pbc); | |
2212 | else | |
2213 | return 0; | |
2214 | } | |
2215 | ||
7ba81444 MS |
2216 | /* Return a count of the number of virtual functions a type has. This |
2217 | includes all the virtual functions it inherits from its base | |
2218 | classes too. */ | |
c906108c SS |
2219 | |
2220 | /* pai: FIXME This doesn't do the right thing: count redefined virtual | |
7ba81444 | 2221 | functions only once (latest redefinition). */ |
c906108c SS |
2222 | |
2223 | int | |
fba45db2 | 2224 | count_virtual_fns (struct type *dclass) |
c906108c | 2225 | { |
c5aa993b | 2226 | int fn, oi; /* function and overloaded instance indices */ |
c5aa993b JM |
2227 | int vfuncs; /* count to return */ |
2228 | ||
2229 | /* recurse on bases that can share virtual table */ | |
2230 | struct type *pbc = primary_base_class (dclass); | |
c906108c SS |
2231 | if (pbc) |
2232 | vfuncs = count_virtual_fns (pbc); | |
7f7e9482 AC |
2233 | else |
2234 | vfuncs = 0; | |
c5aa993b | 2235 | |
c906108c SS |
2236 | for (fn = 0; fn < TYPE_NFN_FIELDS (dclass); fn++) |
2237 | for (oi = 0; oi < TYPE_FN_FIELDLIST_LENGTH (dclass, fn); oi++) | |
2238 | if (TYPE_FN_FIELD_VIRTUAL_P (TYPE_FN_FIELDLIST1 (dclass, fn), oi)) | |
c5aa993b | 2239 | vfuncs++; |
c906108c SS |
2240 | |
2241 | return vfuncs; | |
2242 | } | |
c906108c SS |
2243 | \f |
2244 | ||
c5aa993b | 2245 | |
c906108c SS |
2246 | /* Functions for overload resolution begin here */ |
2247 | ||
2248 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
2249 | 0 => A and B are identical |
2250 | 1 => A and B are incomparable | |
2251 | 2 => A is better than B | |
2252 | 3 => A is worse than B */ | |
c906108c SS |
2253 | |
2254 | int | |
fba45db2 | 2255 | compare_badness (struct badness_vector *a, struct badness_vector *b) |
c906108c SS |
2256 | { |
2257 | int i; | |
2258 | int tmp; | |
c5aa993b JM |
2259 | short found_pos = 0; /* any positives in c? */ |
2260 | short found_neg = 0; /* any negatives in c? */ | |
2261 | ||
2262 | /* differing lengths => incomparable */ | |
c906108c SS |
2263 | if (a->length != b->length) |
2264 | return 1; | |
2265 | ||
c5aa993b JM |
2266 | /* Subtract b from a */ |
2267 | for (i = 0; i < a->length; i++) | |
c906108c SS |
2268 | { |
2269 | tmp = a->rank[i] - b->rank[i]; | |
2270 | if (tmp > 0) | |
c5aa993b | 2271 | found_pos = 1; |
c906108c | 2272 | else if (tmp < 0) |
c5aa993b | 2273 | found_neg = 1; |
c906108c SS |
2274 | } |
2275 | ||
2276 | if (found_pos) | |
2277 | { | |
2278 | if (found_neg) | |
c5aa993b | 2279 | return 1; /* incomparable */ |
c906108c | 2280 | else |
c5aa993b | 2281 | return 3; /* A > B */ |
c906108c | 2282 | } |
c5aa993b JM |
2283 | else |
2284 | /* no positives */ | |
c906108c SS |
2285 | { |
2286 | if (found_neg) | |
c5aa993b | 2287 | return 2; /* A < B */ |
c906108c | 2288 | else |
c5aa993b | 2289 | return 0; /* A == B */ |
c906108c SS |
2290 | } |
2291 | } | |
2292 | ||
7ba81444 MS |
2293 | /* Rank a function by comparing its parameter types (PARMS, length |
2294 | NPARMS), to the types of an argument list (ARGS, length NARGS). | |
2295 | Return a pointer to a badness vector. This has NARGS + 1 | |
2296 | entries. */ | |
c906108c SS |
2297 | |
2298 | struct badness_vector * | |
7ba81444 MS |
2299 | rank_function (struct type **parms, int nparms, |
2300 | struct type **args, int nargs) | |
c906108c SS |
2301 | { |
2302 | int i; | |
c5aa993b | 2303 | struct badness_vector *bv; |
c906108c SS |
2304 | int min_len = nparms < nargs ? nparms : nargs; |
2305 | ||
2306 | bv = xmalloc (sizeof (struct badness_vector)); | |
c5aa993b | 2307 | bv->length = nargs + 1; /* add 1 for the length-match rank */ |
c906108c SS |
2308 | bv->rank = xmalloc ((nargs + 1) * sizeof (int)); |
2309 | ||
2310 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 2311 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 2312 | |
c906108c | 2313 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
2314 | arguments and ellipsis parameter lists, we should consider those |
2315 | and rank the length-match more finely. */ | |
c906108c SS |
2316 | |
2317 | LENGTH_MATCH (bv) = (nargs != nparms) ? LENGTH_MISMATCH_BADNESS : 0; | |
2318 | ||
2319 | /* Now rank all the parameters of the candidate function */ | |
74cc24b0 DB |
2320 | for (i = 1; i <= min_len; i++) |
2321 | bv->rank[i] = rank_one_type (parms[i-1], args[i-1]); | |
c906108c | 2322 | |
c5aa993b JM |
2323 | /* If more arguments than parameters, add dummy entries */ |
2324 | for (i = min_len + 1; i <= nargs; i++) | |
c906108c SS |
2325 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
2326 | ||
2327 | return bv; | |
2328 | } | |
2329 | ||
973ccf8b DJ |
2330 | /* Compare the names of two integer types, assuming that any sign |
2331 | qualifiers have been checked already. We do it this way because | |
2332 | there may be an "int" in the name of one of the types. */ | |
2333 | ||
2334 | static int | |
2335 | integer_types_same_name_p (const char *first, const char *second) | |
2336 | { | |
2337 | int first_p, second_p; | |
2338 | ||
7ba81444 MS |
2339 | /* If both are shorts, return 1; if neither is a short, keep |
2340 | checking. */ | |
973ccf8b DJ |
2341 | first_p = (strstr (first, "short") != NULL); |
2342 | second_p = (strstr (second, "short") != NULL); | |
2343 | if (first_p && second_p) | |
2344 | return 1; | |
2345 | if (first_p || second_p) | |
2346 | return 0; | |
2347 | ||
2348 | /* Likewise for long. */ | |
2349 | first_p = (strstr (first, "long") != NULL); | |
2350 | second_p = (strstr (second, "long") != NULL); | |
2351 | if (first_p && second_p) | |
2352 | return 1; | |
2353 | if (first_p || second_p) | |
2354 | return 0; | |
2355 | ||
2356 | /* Likewise for char. */ | |
2357 | first_p = (strstr (first, "char") != NULL); | |
2358 | second_p = (strstr (second, "char") != NULL); | |
2359 | if (first_p && second_p) | |
2360 | return 1; | |
2361 | if (first_p || second_p) | |
2362 | return 0; | |
2363 | ||
2364 | /* They must both be ints. */ | |
2365 | return 1; | |
2366 | } | |
2367 | ||
c906108c SS |
2368 | /* Compare one type (PARM) for compatibility with another (ARG). |
2369 | * PARM is intended to be the parameter type of a function; and | |
2370 | * ARG is the supplied argument's type. This function tests if | |
2371 | * the latter can be converted to the former. | |
2372 | * | |
2373 | * Return 0 if they are identical types; | |
2374 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 MS |
2375 | * PARM is to ARG. The higher the return value, the worse the match. |
2376 | * Generally the "bad" conversions are all uniformly assigned a 100. */ | |
c906108c SS |
2377 | |
2378 | int | |
fba45db2 | 2379 | rank_one_type (struct type *parm, struct type *arg) |
c906108c | 2380 | { |
7ba81444 | 2381 | /* Identical type pointers. */ |
c906108c | 2382 | /* However, this still doesn't catch all cases of same type for arg |
7ba81444 MS |
2383 | and param. The reason is that builtin types are different from |
2384 | the same ones constructed from the object. */ | |
c906108c SS |
2385 | if (parm == arg) |
2386 | return 0; | |
2387 | ||
2388 | /* Resolve typedefs */ | |
2389 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
2390 | parm = check_typedef (parm); | |
2391 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
2392 | arg = check_typedef (arg); | |
2393 | ||
070ad9f0 | 2394 | /* |
7ba81444 MS |
2395 | Well, damnit, if the names are exactly the same, I'll say they |
2396 | are exactly the same. This happens when we generate method | |
2397 | stubs. The types won't point to the same address, but they | |
070ad9f0 DB |
2398 | really are the same. |
2399 | */ | |
2400 | ||
687d6395 MS |
2401 | if (TYPE_NAME (parm) && TYPE_NAME (arg) |
2402 | && !strcmp (TYPE_NAME (parm), TYPE_NAME (arg))) | |
7ba81444 | 2403 | return 0; |
070ad9f0 | 2404 | |
7ba81444 | 2405 | /* Check if identical after resolving typedefs. */ |
c906108c SS |
2406 | if (parm == arg) |
2407 | return 0; | |
2408 | ||
db577aea | 2409 | /* See through references, since we can almost make non-references |
7ba81444 | 2410 | references. */ |
db577aea | 2411 | if (TYPE_CODE (arg) == TYPE_CODE_REF) |
6b1ba9a0 | 2412 | return (rank_one_type (parm, TYPE_TARGET_TYPE (arg)) |
db577aea AC |
2413 | + REFERENCE_CONVERSION_BADNESS); |
2414 | if (TYPE_CODE (parm) == TYPE_CODE_REF) | |
6b1ba9a0 | 2415 | return (rank_one_type (TYPE_TARGET_TYPE (parm), arg) |
db577aea | 2416 | + REFERENCE_CONVERSION_BADNESS); |
5d161b24 | 2417 | if (overload_debug) |
7ba81444 MS |
2418 | /* Debugging only. */ |
2419 | fprintf_filtered (gdb_stderr, | |
2420 | "------ Arg is %s [%d], parm is %s [%d]\n", | |
2421 | TYPE_NAME (arg), TYPE_CODE (arg), | |
2422 | TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c SS |
2423 | |
2424 | /* x -> y means arg of type x being supplied for parameter of type y */ | |
2425 | ||
2426 | switch (TYPE_CODE (parm)) | |
2427 | { | |
c5aa993b JM |
2428 | case TYPE_CODE_PTR: |
2429 | switch (TYPE_CODE (arg)) | |
2430 | { | |
2431 | case TYPE_CODE_PTR: | |
2432 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) | |
2433 | return VOID_PTR_CONVERSION_BADNESS; | |
2434 | else | |
7ba81444 MS |
2435 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
2436 | TYPE_TARGET_TYPE (arg)); | |
c5aa993b | 2437 | case TYPE_CODE_ARRAY: |
7ba81444 MS |
2438 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
2439 | TYPE_TARGET_TYPE (arg)); | |
c5aa993b JM |
2440 | case TYPE_CODE_FUNC: |
2441 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg); | |
2442 | case TYPE_CODE_INT: | |
2443 | case TYPE_CODE_ENUM: | |
4f2aea11 | 2444 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
2445 | case TYPE_CODE_CHAR: |
2446 | case TYPE_CODE_RANGE: | |
2447 | case TYPE_CODE_BOOL: | |
2448 | return POINTER_CONVERSION_BADNESS; | |
2449 | default: | |
2450 | return INCOMPATIBLE_TYPE_BADNESS; | |
2451 | } | |
2452 | case TYPE_CODE_ARRAY: | |
2453 | switch (TYPE_CODE (arg)) | |
2454 | { | |
2455 | case TYPE_CODE_PTR: | |
2456 | case TYPE_CODE_ARRAY: | |
7ba81444 MS |
2457 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
2458 | TYPE_TARGET_TYPE (arg)); | |
c5aa993b JM |
2459 | default: |
2460 | return INCOMPATIBLE_TYPE_BADNESS; | |
2461 | } | |
2462 | case TYPE_CODE_FUNC: | |
2463 | switch (TYPE_CODE (arg)) | |
2464 | { | |
2465 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
2466 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg)); | |
2467 | default: | |
2468 | return INCOMPATIBLE_TYPE_BADNESS; | |
2469 | } | |
2470 | case TYPE_CODE_INT: | |
2471 | switch (TYPE_CODE (arg)) | |
2472 | { | |
2473 | case TYPE_CODE_INT: | |
2474 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2475 | { | |
2476 | /* Deal with signed, unsigned, and plain chars and | |
7ba81444 | 2477 | signed and unsigned ints. */ |
c5aa993b JM |
2478 | if (TYPE_NOSIGN (parm)) |
2479 | { | |
2480 | /* This case only for character types */ | |
7ba81444 MS |
2481 | if (TYPE_NOSIGN (arg)) |
2482 | return 0; /* plain char -> plain char */ | |
2483 | else /* signed/unsigned char -> plain char */ | |
2484 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
2485 | } |
2486 | else if (TYPE_UNSIGNED (parm)) | |
2487 | { | |
2488 | if (TYPE_UNSIGNED (arg)) | |
2489 | { | |
7ba81444 MS |
2490 | /* unsigned int -> unsigned int, or |
2491 | unsigned long -> unsigned long */ | |
2492 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
2493 | TYPE_NAME (arg))) | |
973ccf8b | 2494 | return 0; |
7ba81444 MS |
2495 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
2496 | "int") | |
2497 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2498 | "long")) | |
c5aa993b JM |
2499 | return INTEGER_PROMOTION_BADNESS; /* unsigned int -> unsigned long */ |
2500 | else | |
1c5cb38e | 2501 | return INTEGER_CONVERSION_BADNESS; /* unsigned long -> unsigned int */ |
c5aa993b JM |
2502 | } |
2503 | else | |
2504 | { | |
7ba81444 MS |
2505 | if (integer_types_same_name_p (TYPE_NAME (arg), |
2506 | "long") | |
2507 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2508 | "int")) | |
1c5cb38e | 2509 | return INTEGER_CONVERSION_BADNESS; /* signed long -> unsigned int */ |
c5aa993b JM |
2510 | else |
2511 | return INTEGER_CONVERSION_BADNESS; /* signed int/long -> unsigned int/long */ | |
2512 | } | |
2513 | } | |
2514 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2515 | { | |
7ba81444 MS |
2516 | if (integer_types_same_name_p (TYPE_NAME (parm), |
2517 | TYPE_NAME (arg))) | |
c5aa993b | 2518 | return 0; |
7ba81444 MS |
2519 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
2520 | "int") | |
2521 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2522 | "long")) | |
c5aa993b JM |
2523 | return INTEGER_PROMOTION_BADNESS; |
2524 | else | |
1c5cb38e | 2525 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2526 | } |
2527 | else | |
1c5cb38e | 2528 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2529 | } |
2530 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2531 | return INTEGER_PROMOTION_BADNESS; | |
2532 | else | |
1c5cb38e | 2533 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b | 2534 | case TYPE_CODE_ENUM: |
4f2aea11 | 2535 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
2536 | case TYPE_CODE_CHAR: |
2537 | case TYPE_CODE_RANGE: | |
2538 | case TYPE_CODE_BOOL: | |
2539 | return INTEGER_PROMOTION_BADNESS; | |
2540 | case TYPE_CODE_FLT: | |
2541 | return INT_FLOAT_CONVERSION_BADNESS; | |
2542 | case TYPE_CODE_PTR: | |
2543 | return NS_POINTER_CONVERSION_BADNESS; | |
2544 | default: | |
2545 | return INCOMPATIBLE_TYPE_BADNESS; | |
2546 | } | |
2547 | break; | |
2548 | case TYPE_CODE_ENUM: | |
2549 | switch (TYPE_CODE (arg)) | |
2550 | { | |
2551 | case TYPE_CODE_INT: | |
2552 | case TYPE_CODE_CHAR: | |
2553 | case TYPE_CODE_RANGE: | |
2554 | case TYPE_CODE_BOOL: | |
2555 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2556 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2557 | case TYPE_CODE_FLT: |
2558 | return INT_FLOAT_CONVERSION_BADNESS; | |
2559 | default: | |
2560 | return INCOMPATIBLE_TYPE_BADNESS; | |
2561 | } | |
2562 | break; | |
2563 | case TYPE_CODE_CHAR: | |
2564 | switch (TYPE_CODE (arg)) | |
2565 | { | |
2566 | case TYPE_CODE_RANGE: | |
2567 | case TYPE_CODE_BOOL: | |
2568 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2569 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2570 | case TYPE_CODE_FLT: |
2571 | return INT_FLOAT_CONVERSION_BADNESS; | |
2572 | case TYPE_CODE_INT: | |
2573 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
1c5cb38e | 2574 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2575 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) |
2576 | return INTEGER_PROMOTION_BADNESS; | |
2577 | /* >>> !! else fall through !! <<< */ | |
2578 | case TYPE_CODE_CHAR: | |
7ba81444 MS |
2579 | /* Deal with signed, unsigned, and plain chars for C++ and |
2580 | with int cases falling through from previous case. */ | |
c5aa993b JM |
2581 | if (TYPE_NOSIGN (parm)) |
2582 | { | |
2583 | if (TYPE_NOSIGN (arg)) | |
2584 | return 0; | |
2585 | else | |
1c5cb38e | 2586 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2587 | } |
2588 | else if (TYPE_UNSIGNED (parm)) | |
2589 | { | |
2590 | if (TYPE_UNSIGNED (arg)) | |
2591 | return 0; | |
2592 | else | |
2593 | return INTEGER_PROMOTION_BADNESS; | |
2594 | } | |
2595 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2596 | return 0; | |
2597 | else | |
1c5cb38e | 2598 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2599 | default: |
2600 | return INCOMPATIBLE_TYPE_BADNESS; | |
2601 | } | |
2602 | break; | |
2603 | case TYPE_CODE_RANGE: | |
2604 | switch (TYPE_CODE (arg)) | |
2605 | { | |
2606 | case TYPE_CODE_INT: | |
2607 | case TYPE_CODE_CHAR: | |
2608 | case TYPE_CODE_RANGE: | |
2609 | case TYPE_CODE_BOOL: | |
2610 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2611 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2612 | case TYPE_CODE_FLT: |
2613 | return INT_FLOAT_CONVERSION_BADNESS; | |
2614 | default: | |
2615 | return INCOMPATIBLE_TYPE_BADNESS; | |
2616 | } | |
2617 | break; | |
2618 | case TYPE_CODE_BOOL: | |
2619 | switch (TYPE_CODE (arg)) | |
2620 | { | |
2621 | case TYPE_CODE_INT: | |
2622 | case TYPE_CODE_CHAR: | |
2623 | case TYPE_CODE_RANGE: | |
2624 | case TYPE_CODE_ENUM: | |
2625 | case TYPE_CODE_FLT: | |
2626 | case TYPE_CODE_PTR: | |
2627 | return BOOLEAN_CONVERSION_BADNESS; | |
2628 | case TYPE_CODE_BOOL: | |
2629 | return 0; | |
2630 | default: | |
2631 | return INCOMPATIBLE_TYPE_BADNESS; | |
2632 | } | |
2633 | break; | |
2634 | case TYPE_CODE_FLT: | |
2635 | switch (TYPE_CODE (arg)) | |
2636 | { | |
2637 | case TYPE_CODE_FLT: | |
2638 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2639 | return FLOAT_PROMOTION_BADNESS; | |
2640 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2641 | return 0; | |
2642 | else | |
2643 | return FLOAT_CONVERSION_BADNESS; | |
2644 | case TYPE_CODE_INT: | |
2645 | case TYPE_CODE_BOOL: | |
2646 | case TYPE_CODE_ENUM: | |
2647 | case TYPE_CODE_RANGE: | |
2648 | case TYPE_CODE_CHAR: | |
2649 | return INT_FLOAT_CONVERSION_BADNESS; | |
2650 | default: | |
2651 | return INCOMPATIBLE_TYPE_BADNESS; | |
2652 | } | |
2653 | break; | |
2654 | case TYPE_CODE_COMPLEX: | |
2655 | switch (TYPE_CODE (arg)) | |
7ba81444 | 2656 | { /* Strictly not needed for C++, but... */ |
c5aa993b JM |
2657 | case TYPE_CODE_FLT: |
2658 | return FLOAT_PROMOTION_BADNESS; | |
2659 | case TYPE_CODE_COMPLEX: | |
2660 | return 0; | |
2661 | default: | |
2662 | return INCOMPATIBLE_TYPE_BADNESS; | |
2663 | } | |
2664 | break; | |
2665 | case TYPE_CODE_STRUCT: | |
c906108c | 2666 | /* currently same as TYPE_CODE_CLASS */ |
c5aa993b JM |
2667 | switch (TYPE_CODE (arg)) |
2668 | { | |
2669 | case TYPE_CODE_STRUCT: | |
2670 | /* Check for derivation */ | |
2671 | if (is_ancestor (parm, arg)) | |
2672 | return BASE_CONVERSION_BADNESS; | |
2673 | /* else fall through */ | |
2674 | default: | |
2675 | return INCOMPATIBLE_TYPE_BADNESS; | |
2676 | } | |
2677 | break; | |
2678 | case TYPE_CODE_UNION: | |
2679 | switch (TYPE_CODE (arg)) | |
2680 | { | |
2681 | case TYPE_CODE_UNION: | |
2682 | default: | |
2683 | return INCOMPATIBLE_TYPE_BADNESS; | |
2684 | } | |
2685 | break; | |
0d5de010 | 2686 | case TYPE_CODE_MEMBERPTR: |
c5aa993b JM |
2687 | switch (TYPE_CODE (arg)) |
2688 | { | |
2689 | default: | |
2690 | return INCOMPATIBLE_TYPE_BADNESS; | |
2691 | } | |
2692 | break; | |
2693 | case TYPE_CODE_METHOD: | |
2694 | switch (TYPE_CODE (arg)) | |
2695 | { | |
2696 | ||
2697 | default: | |
2698 | return INCOMPATIBLE_TYPE_BADNESS; | |
2699 | } | |
2700 | break; | |
2701 | case TYPE_CODE_REF: | |
2702 | switch (TYPE_CODE (arg)) | |
2703 | { | |
2704 | ||
2705 | default: | |
2706 | return INCOMPATIBLE_TYPE_BADNESS; | |
2707 | } | |
2708 | ||
2709 | break; | |
2710 | case TYPE_CODE_SET: | |
2711 | switch (TYPE_CODE (arg)) | |
2712 | { | |
2713 | /* Not in C++ */ | |
2714 | case TYPE_CODE_SET: | |
7ba81444 MS |
2715 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), |
2716 | TYPE_FIELD_TYPE (arg, 0)); | |
c5aa993b JM |
2717 | default: |
2718 | return INCOMPATIBLE_TYPE_BADNESS; | |
2719 | } | |
2720 | break; | |
2721 | case TYPE_CODE_VOID: | |
2722 | default: | |
2723 | return INCOMPATIBLE_TYPE_BADNESS; | |
2724 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
2725 | } |
2726 | ||
c5aa993b JM |
2727 | |
2728 | /* End of functions for overload resolution */ | |
c906108c | 2729 | |
c906108c | 2730 | static void |
fba45db2 | 2731 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
2732 | { |
2733 | int bitno; | |
2734 | ||
2735 | for (bitno = 0; bitno < nbits; bitno++) | |
2736 | { | |
2737 | if ((bitno % 8) == 0) | |
2738 | { | |
2739 | puts_filtered (" "); | |
2740 | } | |
2741 | if (B_TST (bits, bitno)) | |
a3f17187 | 2742 | printf_filtered (("1")); |
c906108c | 2743 | else |
a3f17187 | 2744 | printf_filtered (("0")); |
c906108c SS |
2745 | } |
2746 | } | |
2747 | ||
ad2f7632 | 2748 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
2749 | include it since we may get into a infinitely recursive |
2750 | situation. */ | |
c906108c SS |
2751 | |
2752 | static void | |
ad2f7632 | 2753 | print_arg_types (struct field *args, int nargs, int spaces) |
c906108c SS |
2754 | { |
2755 | if (args != NULL) | |
2756 | { | |
ad2f7632 DJ |
2757 | int i; |
2758 | ||
2759 | for (i = 0; i < nargs; i++) | |
2760 | recursive_dump_type (args[i].type, spaces + 2); | |
c906108c SS |
2761 | } |
2762 | } | |
2763 | ||
2764 | static void | |
fba45db2 | 2765 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
2766 | { |
2767 | int method_idx; | |
2768 | int overload_idx; | |
2769 | struct fn_field *f; | |
2770 | ||
2771 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 2772 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
2773 | printf_filtered ("\n"); |
2774 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
2775 | { | |
2776 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
2777 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
2778 | method_idx, | |
2779 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
2780 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
2781 | gdb_stdout); | |
a3f17187 | 2782 | printf_filtered (_(") length %d\n"), |
c906108c SS |
2783 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
2784 | for (overload_idx = 0; | |
2785 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
2786 | overload_idx++) | |
2787 | { | |
2788 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
2789 | overload_idx, | |
2790 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
2791 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
2792 | gdb_stdout); | |
c906108c SS |
2793 | printf_filtered (")\n"); |
2794 | printfi_filtered (spaces + 8, "type "); | |
7ba81444 MS |
2795 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
2796 | gdb_stdout); | |
c906108c SS |
2797 | printf_filtered ("\n"); |
2798 | ||
2799 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
2800 | spaces + 8 + 2); | |
2801 | ||
2802 | printfi_filtered (spaces + 8, "args "); | |
7ba81444 MS |
2803 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
2804 | gdb_stdout); | |
c906108c SS |
2805 | printf_filtered ("\n"); |
2806 | ||
ad2f7632 | 2807 | print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), |
7ba81444 MS |
2808 | TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, |
2809 | overload_idx)), | |
ad2f7632 | 2810 | spaces); |
c906108c | 2811 | printfi_filtered (spaces + 8, "fcontext "); |
d4f3574e SS |
2812 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
2813 | gdb_stdout); | |
c906108c SS |
2814 | printf_filtered ("\n"); |
2815 | ||
2816 | printfi_filtered (spaces + 8, "is_const %d\n", | |
2817 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
2818 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
2819 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
2820 | printfi_filtered (spaces + 8, "is_private %d\n", | |
2821 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
2822 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
2823 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
2824 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
2825 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
2826 | printfi_filtered (spaces + 8, "voffset %u\n", | |
2827 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
2828 | } | |
2829 | } | |
2830 | } | |
2831 | ||
2832 | static void | |
fba45db2 | 2833 | print_cplus_stuff (struct type *type, int spaces) |
c906108c SS |
2834 | { |
2835 | printfi_filtered (spaces, "n_baseclasses %d\n", | |
2836 | TYPE_N_BASECLASSES (type)); | |
2837 | printfi_filtered (spaces, "nfn_fields %d\n", | |
2838 | TYPE_NFN_FIELDS (type)); | |
2839 | printfi_filtered (spaces, "nfn_fields_total %d\n", | |
2840 | TYPE_NFN_FIELDS_TOTAL (type)); | |
2841 | if (TYPE_N_BASECLASSES (type) > 0) | |
2842 | { | |
2843 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
2844 | TYPE_N_BASECLASSES (type)); | |
7ba81444 MS |
2845 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
2846 | gdb_stdout); | |
c906108c SS |
2847 | printf_filtered (")"); |
2848 | ||
2849 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
2850 | TYPE_N_BASECLASSES (type)); | |
2851 | puts_filtered ("\n"); | |
2852 | } | |
2853 | if (TYPE_NFIELDS (type) > 0) | |
2854 | { | |
2855 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
2856 | { | |
7ba81444 MS |
2857 | printfi_filtered (spaces, |
2858 | "private_field_bits (%d bits at *", | |
c906108c | 2859 | TYPE_NFIELDS (type)); |
7ba81444 MS |
2860 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
2861 | gdb_stdout); | |
c906108c SS |
2862 | printf_filtered (")"); |
2863 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
2864 | TYPE_NFIELDS (type)); | |
2865 | puts_filtered ("\n"); | |
2866 | } | |
2867 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
2868 | { | |
7ba81444 MS |
2869 | printfi_filtered (spaces, |
2870 | "protected_field_bits (%d bits at *", | |
c906108c | 2871 | TYPE_NFIELDS (type)); |
7ba81444 MS |
2872 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
2873 | gdb_stdout); | |
c906108c SS |
2874 | printf_filtered (")"); |
2875 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
2876 | TYPE_NFIELDS (type)); | |
2877 | puts_filtered ("\n"); | |
2878 | } | |
2879 | } | |
2880 | if (TYPE_NFN_FIELDS (type) > 0) | |
2881 | { | |
2882 | dump_fn_fieldlists (type, spaces); | |
2883 | } | |
2884 | } | |
2885 | ||
e9e79dd9 FF |
2886 | static void |
2887 | print_bound_type (int bt) | |
2888 | { | |
2889 | switch (bt) | |
2890 | { | |
2891 | case BOUND_CANNOT_BE_DETERMINED: | |
2892 | printf_filtered ("(BOUND_CANNOT_BE_DETERMINED)"); | |
2893 | break; | |
2894 | case BOUND_BY_REF_ON_STACK: | |
2895 | printf_filtered ("(BOUND_BY_REF_ON_STACK)"); | |
2896 | break; | |
2897 | case BOUND_BY_VALUE_ON_STACK: | |
2898 | printf_filtered ("(BOUND_BY_VALUE_ON_STACK)"); | |
2899 | break; | |
2900 | case BOUND_BY_REF_IN_REG: | |
2901 | printf_filtered ("(BOUND_BY_REF_IN_REG)"); | |
2902 | break; | |
2903 | case BOUND_BY_VALUE_IN_REG: | |
2904 | printf_filtered ("(BOUND_BY_VALUE_IN_REG)"); | |
2905 | break; | |
2906 | case BOUND_SIMPLE: | |
2907 | printf_filtered ("(BOUND_SIMPLE)"); | |
2908 | break; | |
2909 | default: | |
a3f17187 | 2910 | printf_filtered (_("(unknown bound type)")); |
e9e79dd9 FF |
2911 | break; |
2912 | } | |
2913 | } | |
2914 | ||
c906108c SS |
2915 | static struct obstack dont_print_type_obstack; |
2916 | ||
2917 | void | |
fba45db2 | 2918 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
2919 | { |
2920 | int idx; | |
2921 | ||
2922 | if (spaces == 0) | |
2923 | obstack_begin (&dont_print_type_obstack, 0); | |
2924 | ||
2925 | if (TYPE_NFIELDS (type) > 0 | |
2926 | || (TYPE_CPLUS_SPECIFIC (type) && TYPE_NFN_FIELDS (type) > 0)) | |
2927 | { | |
2928 | struct type **first_dont_print | |
7ba81444 | 2929 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 2930 | |
7ba81444 MS |
2931 | int i = (struct type **) |
2932 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
2933 | |
2934 | while (--i >= 0) | |
2935 | { | |
2936 | if (type == first_dont_print[i]) | |
2937 | { | |
2938 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 2939 | gdb_print_host_address (type, gdb_stdout); |
a3f17187 | 2940 | printf_filtered (_(" <same as already seen type>\n")); |
c906108c SS |
2941 | return; |
2942 | } | |
2943 | } | |
2944 | ||
2945 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
2946 | } | |
2947 | ||
2948 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 2949 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
2950 | printf_filtered ("\n"); |
2951 | printfi_filtered (spaces, "name '%s' (", | |
2952 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 2953 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c | 2954 | printf_filtered (")\n"); |
e9e79dd9 FF |
2955 | printfi_filtered (spaces, "tagname '%s' (", |
2956 | TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>"); | |
2957 | gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); | |
2958 | printf_filtered (")\n"); | |
c906108c SS |
2959 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
2960 | switch (TYPE_CODE (type)) | |
2961 | { | |
c5aa993b JM |
2962 | case TYPE_CODE_UNDEF: |
2963 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
2964 | break; | |
2965 | case TYPE_CODE_PTR: | |
2966 | printf_filtered ("(TYPE_CODE_PTR)"); | |
2967 | break; | |
2968 | case TYPE_CODE_ARRAY: | |
2969 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
2970 | break; | |
2971 | case TYPE_CODE_STRUCT: | |
2972 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
2973 | break; | |
2974 | case TYPE_CODE_UNION: | |
2975 | printf_filtered ("(TYPE_CODE_UNION)"); | |
2976 | break; | |
2977 | case TYPE_CODE_ENUM: | |
2978 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
2979 | break; | |
4f2aea11 MK |
2980 | case TYPE_CODE_FLAGS: |
2981 | printf_filtered ("(TYPE_CODE_FLAGS)"); | |
2982 | break; | |
c5aa993b JM |
2983 | case TYPE_CODE_FUNC: |
2984 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
2985 | break; | |
2986 | case TYPE_CODE_INT: | |
2987 | printf_filtered ("(TYPE_CODE_INT)"); | |
2988 | break; | |
2989 | case TYPE_CODE_FLT: | |
2990 | printf_filtered ("(TYPE_CODE_FLT)"); | |
2991 | break; | |
2992 | case TYPE_CODE_VOID: | |
2993 | printf_filtered ("(TYPE_CODE_VOID)"); | |
2994 | break; | |
2995 | case TYPE_CODE_SET: | |
2996 | printf_filtered ("(TYPE_CODE_SET)"); | |
2997 | break; | |
2998 | case TYPE_CODE_RANGE: | |
2999 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
3000 | break; | |
3001 | case TYPE_CODE_STRING: | |
3002 | printf_filtered ("(TYPE_CODE_STRING)"); | |
3003 | break; | |
e9e79dd9 FF |
3004 | case TYPE_CODE_BITSTRING: |
3005 | printf_filtered ("(TYPE_CODE_BITSTRING)"); | |
3006 | break; | |
c5aa993b JM |
3007 | case TYPE_CODE_ERROR: |
3008 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
3009 | break; | |
0d5de010 DJ |
3010 | case TYPE_CODE_MEMBERPTR: |
3011 | printf_filtered ("(TYPE_CODE_MEMBERPTR)"); | |
3012 | break; | |
3013 | case TYPE_CODE_METHODPTR: | |
3014 | printf_filtered ("(TYPE_CODE_METHODPTR)"); | |
c5aa993b JM |
3015 | break; |
3016 | case TYPE_CODE_METHOD: | |
3017 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
3018 | break; | |
3019 | case TYPE_CODE_REF: | |
3020 | printf_filtered ("(TYPE_CODE_REF)"); | |
3021 | break; | |
3022 | case TYPE_CODE_CHAR: | |
3023 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
3024 | break; | |
3025 | case TYPE_CODE_BOOL: | |
3026 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
3027 | break; | |
e9e79dd9 FF |
3028 | case TYPE_CODE_COMPLEX: |
3029 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
3030 | break; | |
c5aa993b JM |
3031 | case TYPE_CODE_TYPEDEF: |
3032 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
3033 | break; | |
e9e79dd9 FF |
3034 | case TYPE_CODE_TEMPLATE: |
3035 | printf_filtered ("(TYPE_CODE_TEMPLATE)"); | |
3036 | break; | |
3037 | case TYPE_CODE_TEMPLATE_ARG: | |
3038 | printf_filtered ("(TYPE_CODE_TEMPLATE_ARG)"); | |
3039 | break; | |
5c4e30ca DC |
3040 | case TYPE_CODE_NAMESPACE: |
3041 | printf_filtered ("(TYPE_CODE_NAMESPACE)"); | |
3042 | break; | |
c5aa993b JM |
3043 | default: |
3044 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
3045 | break; | |
c906108c SS |
3046 | } |
3047 | puts_filtered ("\n"); | |
3048 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
e9e79dd9 FF |
3049 | printfi_filtered (spaces, "upper_bound_type 0x%x ", |
3050 | TYPE_ARRAY_UPPER_BOUND_TYPE (type)); | |
3051 | print_bound_type (TYPE_ARRAY_UPPER_BOUND_TYPE (type)); | |
3052 | puts_filtered ("\n"); | |
3053 | printfi_filtered (spaces, "lower_bound_type 0x%x ", | |
3054 | TYPE_ARRAY_LOWER_BOUND_TYPE (type)); | |
3055 | print_bound_type (TYPE_ARRAY_LOWER_BOUND_TYPE (type)); | |
3056 | puts_filtered ("\n"); | |
c906108c | 3057 | printfi_filtered (spaces, "objfile "); |
d4f3574e | 3058 | gdb_print_host_address (TYPE_OBJFILE (type), gdb_stdout); |
c906108c SS |
3059 | printf_filtered ("\n"); |
3060 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 3061 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
3062 | printf_filtered ("\n"); |
3063 | if (TYPE_TARGET_TYPE (type) != NULL) | |
3064 | { | |
3065 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
3066 | } | |
3067 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 3068 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
3069 | printf_filtered ("\n"); |
3070 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 3071 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 3072 | printf_filtered ("\n"); |
2fdde8f8 DJ |
3073 | printfi_filtered (spaces, "type_chain "); |
3074 | gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); | |
e9e79dd9 | 3075 | printf_filtered ("\n"); |
7ba81444 MS |
3076 | printfi_filtered (spaces, "instance_flags 0x%x", |
3077 | TYPE_INSTANCE_FLAGS (type)); | |
2fdde8f8 DJ |
3078 | if (TYPE_CONST (type)) |
3079 | { | |
3080 | puts_filtered (" TYPE_FLAG_CONST"); | |
3081 | } | |
3082 | if (TYPE_VOLATILE (type)) | |
3083 | { | |
3084 | puts_filtered (" TYPE_FLAG_VOLATILE"); | |
3085 | } | |
3086 | if (TYPE_CODE_SPACE (type)) | |
3087 | { | |
3088 | puts_filtered (" TYPE_FLAG_CODE_SPACE"); | |
3089 | } | |
3090 | if (TYPE_DATA_SPACE (type)) | |
3091 | { | |
3092 | puts_filtered (" TYPE_FLAG_DATA_SPACE"); | |
3093 | } | |
8b2dbe47 KB |
3094 | if (TYPE_ADDRESS_CLASS_1 (type)) |
3095 | { | |
3096 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_1"); | |
3097 | } | |
3098 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
3099 | { | |
3100 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_2"); | |
3101 | } | |
2fdde8f8 | 3102 | puts_filtered ("\n"); |
c906108c | 3103 | printfi_filtered (spaces, "flags 0x%x", TYPE_FLAGS (type)); |
762a036f | 3104 | if (TYPE_UNSIGNED (type)) |
c906108c SS |
3105 | { |
3106 | puts_filtered (" TYPE_FLAG_UNSIGNED"); | |
3107 | } | |
762a036f FF |
3108 | if (TYPE_NOSIGN (type)) |
3109 | { | |
3110 | puts_filtered (" TYPE_FLAG_NOSIGN"); | |
3111 | } | |
3112 | if (TYPE_STUB (type)) | |
c906108c SS |
3113 | { |
3114 | puts_filtered (" TYPE_FLAG_STUB"); | |
3115 | } | |
762a036f FF |
3116 | if (TYPE_TARGET_STUB (type)) |
3117 | { | |
3118 | puts_filtered (" TYPE_FLAG_TARGET_STUB"); | |
3119 | } | |
3120 | if (TYPE_STATIC (type)) | |
3121 | { | |
3122 | puts_filtered (" TYPE_FLAG_STATIC"); | |
3123 | } | |
762a036f FF |
3124 | if (TYPE_PROTOTYPED (type)) |
3125 | { | |
3126 | puts_filtered (" TYPE_FLAG_PROTOTYPED"); | |
3127 | } | |
3128 | if (TYPE_INCOMPLETE (type)) | |
3129 | { | |
3130 | puts_filtered (" TYPE_FLAG_INCOMPLETE"); | |
3131 | } | |
762a036f FF |
3132 | if (TYPE_VARARGS (type)) |
3133 | { | |
3134 | puts_filtered (" TYPE_FLAG_VARARGS"); | |
3135 | } | |
f5f8a009 EZ |
3136 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
3137 | an attribute for the array type, which tells whether or not we | |
3138 | have a vector, instead of a regular array. */ | |
3139 | if (TYPE_VECTOR (type)) | |
3140 | { | |
3141 | puts_filtered (" TYPE_FLAG_VECTOR"); | |
3142 | } | |
c906108c SS |
3143 | puts_filtered ("\n"); |
3144 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 3145 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
3146 | puts_filtered ("\n"); |
3147 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
3148 | { | |
3149 | printfi_filtered (spaces + 2, | |
3150 | "[%d] bitpos %d bitsize %d type ", | |
3151 | idx, TYPE_FIELD_BITPOS (type, idx), | |
3152 | TYPE_FIELD_BITSIZE (type, idx)); | |
d4f3574e | 3153 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
3154 | printf_filtered (" name '%s' (", |
3155 | TYPE_FIELD_NAME (type, idx) != NULL | |
3156 | ? TYPE_FIELD_NAME (type, idx) | |
3157 | : "<NULL>"); | |
d4f3574e | 3158 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
3159 | printf_filtered (")\n"); |
3160 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
3161 | { | |
3162 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
3163 | } | |
3164 | } | |
3165 | printfi_filtered (spaces, "vptr_basetype "); | |
d4f3574e | 3166 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); |
c906108c SS |
3167 | puts_filtered ("\n"); |
3168 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
3169 | { | |
3170 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
3171 | } | |
7ba81444 MS |
3172 | printfi_filtered (spaces, "vptr_fieldno %d\n", |
3173 | TYPE_VPTR_FIELDNO (type)); | |
c906108c SS |
3174 | switch (TYPE_CODE (type)) |
3175 | { | |
c5aa993b JM |
3176 | case TYPE_CODE_STRUCT: |
3177 | printfi_filtered (spaces, "cplus_stuff "); | |
7ba81444 MS |
3178 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), |
3179 | gdb_stdout); | |
c5aa993b JM |
3180 | puts_filtered ("\n"); |
3181 | print_cplus_stuff (type, spaces); | |
3182 | break; | |
c906108c | 3183 | |
701c159d AC |
3184 | case TYPE_CODE_FLT: |
3185 | printfi_filtered (spaces, "floatformat "); | |
8da61cc4 | 3186 | if (TYPE_FLOATFORMAT (type) == NULL) |
701c159d AC |
3187 | puts_filtered ("(null)"); |
3188 | else | |
8da61cc4 DJ |
3189 | { |
3190 | puts_filtered ("{ "); | |
3191 | if (TYPE_FLOATFORMAT (type)[0] == NULL | |
3192 | || TYPE_FLOATFORMAT (type)[0]->name == NULL) | |
3193 | puts_filtered ("(null)"); | |
3194 | else | |
3195 | puts_filtered (TYPE_FLOATFORMAT (type)[0]->name); | |
3196 | ||
3197 | puts_filtered (", "); | |
3198 | if (TYPE_FLOATFORMAT (type)[1] == NULL | |
3199 | || TYPE_FLOATFORMAT (type)[1]->name == NULL) | |
3200 | puts_filtered ("(null)"); | |
3201 | else | |
3202 | puts_filtered (TYPE_FLOATFORMAT (type)[1]->name); | |
3203 | ||
3204 | puts_filtered (" }"); | |
3205 | } | |
701c159d AC |
3206 | puts_filtered ("\n"); |
3207 | break; | |
3208 | ||
c5aa993b | 3209 | default: |
7ba81444 MS |
3210 | /* We have to pick one of the union types to be able print and |
3211 | test the value. Pick cplus_struct_type, even though we know | |
3212 | it isn't any particular one. */ | |
c5aa993b | 3213 | printfi_filtered (spaces, "type_specific "); |
d4f3574e | 3214 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), gdb_stdout); |
c5aa993b JM |
3215 | if (TYPE_CPLUS_SPECIFIC (type) != NULL) |
3216 | { | |
a3f17187 | 3217 | printf_filtered (_(" (unknown data form)")); |
c5aa993b JM |
3218 | } |
3219 | printf_filtered ("\n"); | |
3220 | break; | |
c906108c SS |
3221 | |
3222 | } | |
3223 | if (spaces == 0) | |
3224 | obstack_free (&dont_print_type_obstack, NULL); | |
3225 | } | |
3226 | ||
ae5a43e0 DJ |
3227 | /* Trivial helpers for the libiberty hash table, for mapping one |
3228 | type to another. */ | |
3229 | ||
3230 | struct type_pair | |
3231 | { | |
3232 | struct type *old, *new; | |
3233 | }; | |
3234 | ||
3235 | static hashval_t | |
3236 | type_pair_hash (const void *item) | |
3237 | { | |
3238 | const struct type_pair *pair = item; | |
3239 | return htab_hash_pointer (pair->old); | |
3240 | } | |
3241 | ||
3242 | static int | |
3243 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
3244 | { | |
3245 | const struct type_pair *lhs = item_lhs, *rhs = item_rhs; | |
3246 | return lhs->old == rhs->old; | |
3247 | } | |
3248 | ||
3249 | /* Allocate the hash table used by copy_type_recursive to walk | |
3250 | types without duplicates. We use OBJFILE's obstack, because | |
3251 | OBJFILE is about to be deleted. */ | |
3252 | ||
3253 | htab_t | |
3254 | create_copied_types_hash (struct objfile *objfile) | |
3255 | { | |
3256 | return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, | |
3257 | NULL, &objfile->objfile_obstack, | |
3258 | hashtab_obstack_allocate, | |
3259 | dummy_obstack_deallocate); | |
3260 | } | |
3261 | ||
7ba81444 MS |
3262 | /* Recursively copy (deep copy) TYPE, if it is associated with |
3263 | OBJFILE. Return a new type allocated using malloc, a saved type if | |
3264 | we have already visited TYPE (using COPIED_TYPES), or TYPE if it is | |
3265 | not associated with OBJFILE. */ | |
ae5a43e0 DJ |
3266 | |
3267 | struct type * | |
7ba81444 MS |
3268 | copy_type_recursive (struct objfile *objfile, |
3269 | struct type *type, | |
ae5a43e0 DJ |
3270 | htab_t copied_types) |
3271 | { | |
3272 | struct type_pair *stored, pair; | |
3273 | void **slot; | |
3274 | struct type *new_type; | |
3275 | ||
3276 | if (TYPE_OBJFILE (type) == NULL) | |
3277 | return type; | |
3278 | ||
7ba81444 MS |
3279 | /* This type shouldn't be pointing to any types in other objfiles; |
3280 | if it did, the type might disappear unexpectedly. */ | |
ae5a43e0 DJ |
3281 | gdb_assert (TYPE_OBJFILE (type) == objfile); |
3282 | ||
3283 | pair.old = type; | |
3284 | slot = htab_find_slot (copied_types, &pair, INSERT); | |
3285 | if (*slot != NULL) | |
3286 | return ((struct type_pair *) *slot)->new; | |
3287 | ||
3288 | new_type = alloc_type (NULL); | |
3289 | ||
3290 | /* We must add the new type to the hash table immediately, in case | |
3291 | we encounter this type again during a recursive call below. */ | |
3292 | stored = xmalloc (sizeof (struct type_pair)); | |
3293 | stored->old = type; | |
3294 | stored->new = new_type; | |
3295 | *slot = stored; | |
3296 | ||
3297 | /* Copy the common fields of types. */ | |
3298 | TYPE_CODE (new_type) = TYPE_CODE (type); | |
7ba81444 MS |
3299 | TYPE_ARRAY_UPPER_BOUND_TYPE (new_type) = |
3300 | TYPE_ARRAY_UPPER_BOUND_TYPE (type); | |
3301 | TYPE_ARRAY_LOWER_BOUND_TYPE (new_type) = | |
3302 | TYPE_ARRAY_LOWER_BOUND_TYPE (type); | |
ae5a43e0 DJ |
3303 | if (TYPE_NAME (type)) |
3304 | TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type)); | |
3305 | if (TYPE_TAG_NAME (type)) | |
3306 | TYPE_TAG_NAME (new_type) = xstrdup (TYPE_TAG_NAME (type)); | |
3307 | TYPE_FLAGS (new_type) = TYPE_FLAGS (type); | |
3308 | TYPE_VPTR_FIELDNO (new_type) = TYPE_VPTR_FIELDNO (type); | |
3309 | ||
3310 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); | |
3311 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
3312 | ||
3313 | /* Copy the fields. */ | |
3314 | TYPE_NFIELDS (new_type) = TYPE_NFIELDS (type); | |
3315 | if (TYPE_NFIELDS (type)) | |
3316 | { | |
3317 | int i, nfields; | |
3318 | ||
3319 | nfields = TYPE_NFIELDS (type); | |
3320 | TYPE_FIELDS (new_type) = xmalloc (sizeof (struct field) * nfields); | |
3321 | for (i = 0; i < nfields; i++) | |
3322 | { | |
7ba81444 MS |
3323 | TYPE_FIELD_ARTIFICIAL (new_type, i) = |
3324 | TYPE_FIELD_ARTIFICIAL (type, i); | |
ae5a43e0 DJ |
3325 | TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
3326 | if (TYPE_FIELD_TYPE (type, i)) | |
3327 | TYPE_FIELD_TYPE (new_type, i) | |
3328 | = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i), | |
3329 | copied_types); | |
3330 | if (TYPE_FIELD_NAME (type, i)) | |
7ba81444 MS |
3331 | TYPE_FIELD_NAME (new_type, i) = |
3332 | xstrdup (TYPE_FIELD_NAME (type, i)); | |
ae5a43e0 DJ |
3333 | if (TYPE_FIELD_STATIC_HAS_ADDR (type, i)) |
3334 | SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i), | |
3335 | TYPE_FIELD_STATIC_PHYSADDR (type, i)); | |
3336 | else if (TYPE_FIELD_STATIC (type, i)) | |
3337 | SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i), | |
7ba81444 MS |
3338 | xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, |
3339 | i))); | |
ae5a43e0 DJ |
3340 | else |
3341 | { | |
7ba81444 MS |
3342 | TYPE_FIELD_BITPOS (new_type, i) = |
3343 | TYPE_FIELD_BITPOS (type, i); | |
ae5a43e0 DJ |
3344 | TYPE_FIELD_STATIC_KIND (new_type, i) = 0; |
3345 | } | |
3346 | } | |
3347 | } | |
3348 | ||
3349 | /* Copy pointers to other types. */ | |
3350 | if (TYPE_TARGET_TYPE (type)) | |
7ba81444 MS |
3351 | TYPE_TARGET_TYPE (new_type) = |
3352 | copy_type_recursive (objfile, | |
3353 | TYPE_TARGET_TYPE (type), | |
3354 | copied_types); | |
ae5a43e0 | 3355 | if (TYPE_VPTR_BASETYPE (type)) |
7ba81444 MS |
3356 | TYPE_VPTR_BASETYPE (new_type) = |
3357 | copy_type_recursive (objfile, | |
3358 | TYPE_VPTR_BASETYPE (type), | |
3359 | copied_types); | |
ae5a43e0 DJ |
3360 | /* Maybe copy the type_specific bits. |
3361 | ||
3362 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
3363 | base classes and methods. There's no fundamental reason why we | |
3364 | can't, but at the moment it is not needed. */ | |
3365 | ||
3366 | if (TYPE_CODE (type) == TYPE_CODE_FLT) | |
d5d6fca5 | 3367 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); |
ae5a43e0 DJ |
3368 | else if (TYPE_CODE (type) == TYPE_CODE_STRUCT |
3369 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
3370 | || TYPE_CODE (type) == TYPE_CODE_TEMPLATE | |
3371 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) | |
3372 | INIT_CPLUS_SPECIFIC (new_type); | |
3373 | ||
3374 | return new_type; | |
3375 | } | |
3376 | ||
8da61cc4 DJ |
3377 | static struct type * |
3378 | build_flt (int bit, char *name, const struct floatformat **floatformats) | |
3379 | { | |
3380 | struct type *t; | |
3381 | ||
3382 | if (bit == -1) | |
3383 | { | |
3384 | gdb_assert (floatformats != NULL); | |
3385 | gdb_assert (floatformats[0] != NULL && floatformats[1] != NULL); | |
3386 | bit = floatformats[0]->totalsize; | |
3387 | } | |
3388 | gdb_assert (bit >= 0); | |
3389 | ||
3390 | t = init_type (TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, 0, name, NULL); | |
3391 | TYPE_FLOATFORMAT (t) = floatformats; | |
3392 | return t; | |
3393 | } | |
3394 | ||
000177f0 AC |
3395 | static struct gdbarch_data *gdbtypes_data; |
3396 | ||
3397 | const struct builtin_type * | |
3398 | builtin_type (struct gdbarch *gdbarch) | |
3399 | { | |
3400 | return gdbarch_data (gdbarch, gdbtypes_data); | |
3401 | } | |
3402 | ||
70bd8e24 | 3403 | |
70bd8e24 AC |
3404 | static struct type * |
3405 | build_complex (int bit, char *name, struct type *target_type) | |
3406 | { | |
3407 | struct type *t; | |
3408 | if (bit <= 0 || target_type == builtin_type_error) | |
3409 | { | |
3410 | gdb_assert (builtin_type_error != NULL); | |
3411 | return builtin_type_error; | |
3412 | } | |
3413 | t = init_type (TYPE_CODE_COMPLEX, 2 * bit / TARGET_CHAR_BIT, | |
3414 | 0, name, (struct objfile *) NULL); | |
3415 | TYPE_TARGET_TYPE (t) = target_type; | |
3416 | return t; | |
3417 | } | |
3418 | ||
000177f0 AC |
3419 | static void * |
3420 | gdbtypes_post_init (struct gdbarch *gdbarch) | |
3421 | { | |
3422 | struct builtin_type *builtin_type | |
3423 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); | |
3424 | ||
3425 | builtin_type->builtin_void = | |
3426 | init_type (TYPE_CODE_VOID, 1, | |
3427 | 0, | |
3428 | "void", (struct objfile *) NULL); | |
3429 | builtin_type->builtin_char = | |
3430 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3431 | (TYPE_FLAG_NOSIGN | |
6c6b19fd UW |
3432 | | (gdbarch_char_signed (current_gdbarch) ? |
3433 | 0 : TYPE_FLAG_UNSIGNED)), | |
000177f0 | 3434 | "char", (struct objfile *) NULL); |
685419e2 | 3435 | builtin_type->builtin_true_char = |
000177f0 AC |
3436 | init_type (TYPE_CODE_CHAR, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
3437 | 0, | |
3438 | "true character", (struct objfile *) NULL); | |
ea37ba09 DJ |
3439 | builtin_type->builtin_true_unsigned_char = |
3440 | init_type (TYPE_CODE_CHAR, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3441 | TYPE_FLAG_UNSIGNED, | |
3442 | "true character", (struct objfile *) NULL); | |
000177f0 AC |
3443 | builtin_type->builtin_signed_char = |
3444 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3445 | 0, | |
3446 | "signed char", (struct objfile *) NULL); | |
3447 | builtin_type->builtin_unsigned_char = | |
3448 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3449 | TYPE_FLAG_UNSIGNED, | |
3450 | "unsigned char", (struct objfile *) NULL); | |
3451 | builtin_type->builtin_short = | |
7ba81444 MS |
3452 | init_type (TYPE_CODE_INT, |
3453 | gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT, | |
3454 | 0, "short", (struct objfile *) NULL); | |
000177f0 | 3455 | builtin_type->builtin_unsigned_short = |
7ba81444 MS |
3456 | init_type (TYPE_CODE_INT, |
3457 | gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT, | |
3458 | TYPE_FLAG_UNSIGNED, "unsigned short", | |
3459 | (struct objfile *) NULL); | |
000177f0 | 3460 | builtin_type->builtin_int = |
7ba81444 MS |
3461 | init_type (TYPE_CODE_INT, |
3462 | gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT, | |
3463 | 0, "int", (struct objfile *) NULL); | |
000177f0 | 3464 | builtin_type->builtin_unsigned_int = |
7ba81444 MS |
3465 | init_type (TYPE_CODE_INT, |
3466 | gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT, | |
3467 | TYPE_FLAG_UNSIGNED, "unsigned int", | |
3468 | (struct objfile *) NULL); | |
000177f0 | 3469 | builtin_type->builtin_long = |
7ba81444 MS |
3470 | init_type (TYPE_CODE_INT, |
3471 | gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT, | |
3472 | 0, "long", (struct objfile *) NULL); | |
000177f0 | 3473 | builtin_type->builtin_unsigned_long = |
7ba81444 MS |
3474 | init_type (TYPE_CODE_INT, |
3475 | gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT, | |
3476 | TYPE_FLAG_UNSIGNED, "unsigned long", | |
3477 | (struct objfile *) NULL); | |
000177f0 | 3478 | builtin_type->builtin_long_long = |
9a76efb6 UW |
3479 | init_type (TYPE_CODE_INT, |
3480 | gdbarch_long_long_bit (current_gdbarch) / TARGET_CHAR_BIT, | |
3481 | 0, "long long", (struct objfile *) NULL); | |
000177f0 | 3482 | builtin_type->builtin_unsigned_long_long = |
9a76efb6 UW |
3483 | init_type (TYPE_CODE_INT, |
3484 | gdbarch_long_long_bit (current_gdbarch) / TARGET_CHAR_BIT, | |
3485 | TYPE_FLAG_UNSIGNED, "unsigned long long", | |
3486 | (struct objfile *) NULL); | |
70bd8e24 AC |
3487 | builtin_type->builtin_float |
3488 | = build_flt (gdbarch_float_bit (gdbarch), "float", | |
3489 | gdbarch_float_format (gdbarch)); | |
3490 | builtin_type->builtin_double | |
3491 | = build_flt (gdbarch_double_bit (gdbarch), "double", | |
3492 | gdbarch_double_format (gdbarch)); | |
3493 | builtin_type->builtin_long_double | |
3494 | = build_flt (gdbarch_long_double_bit (gdbarch), "long double", | |
3495 | gdbarch_long_double_format (gdbarch)); | |
3496 | builtin_type->builtin_complex | |
3497 | = build_complex (gdbarch_float_bit (gdbarch), "complex", | |
3498 | builtin_type->builtin_float); | |
3499 | builtin_type->builtin_double_complex | |
3500 | = build_complex (gdbarch_double_bit (gdbarch), "double complex", | |
3501 | builtin_type->builtin_double); | |
000177f0 AC |
3502 | builtin_type->builtin_string = |
3503 | init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3504 | 0, | |
3505 | "string", (struct objfile *) NULL); | |
000177f0 AC |
3506 | builtin_type->builtin_bool = |
3507 | init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3508 | 0, | |
3509 | "bool", (struct objfile *) NULL); | |
3510 | ||
7ba81444 | 3511 | /* Pointer/Address types. */ |
000177f0 AC |
3512 | |
3513 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
3514 | the same --- for example, on the D10V, pointers are 16 bits long, | |
3515 | but addresses are 32 bits long. See doc/gdbint.texinfo, | |
3516 | ``Pointers Are Not Always Addresses''. | |
3517 | ||
3518 | The upshot is: | |
3519 | - gdb's `struct type' always describes the target's | |
3520 | representation. | |
3521 | - gdb's `struct value' objects should always hold values in | |
3522 | target form. | |
3523 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
3524 | address space that the assembler and linker work with. Thus, | |
3525 | since target_read_memory takes a CORE_ADDR as an argument, it | |
3526 | can access any memory on the target, even if the processor has | |
3527 | separate code and data address spaces. | |
3528 | ||
3529 | So, for example: | |
3530 | - If v is a value holding a D10V code pointer, its contents are | |
3531 | in target form: a big-endian address left-shifted two bits. | |
3532 | - If p is a D10V pointer type, TYPE_LENGTH (p) == 2, just as | |
3533 | sizeof (void *) == 2 on the target. | |
3534 | ||
3535 | In this context, builtin_type->CORE_ADDR is a bit odd: it's a | |
3536 | target type for a value the target will never see. It's only | |
3537 | used to hold the values of (typeless) linker symbols, which are | |
3538 | indeed in the unified virtual address space. */ | |
7ba81444 MS |
3539 | |
3540 | builtin_type->builtin_data_ptr = | |
3541 | make_pointer_type (builtin_type->builtin_void, NULL); | |
3542 | builtin_type->builtin_func_ptr = | |
3543 | lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
000177f0 | 3544 | builtin_type->builtin_core_addr = |
7ba81444 MS |
3545 | init_type (TYPE_CODE_INT, |
3546 | gdbarch_addr_bit (current_gdbarch) / 8, | |
000177f0 AC |
3547 | TYPE_FLAG_UNSIGNED, |
3548 | "__CORE_ADDR", (struct objfile *) NULL); | |
3549 | ||
64c50499 UW |
3550 | |
3551 | /* The following set of types is used for symbols with no | |
3552 | debug information. */ | |
7ba81444 MS |
3553 | builtin_type->nodebug_text_symbol = |
3554 | init_type (TYPE_CODE_FUNC, 1, 0, | |
3555 | "<text variable, no debug info>", NULL); | |
3556 | TYPE_TARGET_TYPE (builtin_type->nodebug_text_symbol) = | |
3557 | builtin_type->builtin_int; | |
3558 | builtin_type->nodebug_data_symbol = | |
3559 | init_type (TYPE_CODE_INT, | |
3560 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
3561 | "<data variable, no debug info>", NULL); | |
3562 | builtin_type->nodebug_unknown_symbol = | |
3563 | init_type (TYPE_CODE_INT, 1, 0, | |
3564 | "<variable (not text or data), no debug info>", NULL); | |
3565 | builtin_type->nodebug_tls_symbol = | |
3566 | init_type (TYPE_CODE_INT, | |
3567 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
3568 | "<thread local variable, no debug info>", NULL); | |
64c50499 | 3569 | |
000177f0 AC |
3570 | return builtin_type; |
3571 | } | |
3572 | ||
a14ed312 | 3573 | extern void _initialize_gdbtypes (void); |
c906108c | 3574 | void |
fba45db2 | 3575 | _initialize_gdbtypes (void) |
c906108c | 3576 | { |
5674de60 UW |
3577 | gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
3578 | ||
7ba81444 MS |
3579 | /* FIXME: The following types are architecture-neutral. However, |
3580 | they contain pointer_type and reference_type fields potentially | |
3581 | caching pointer or reference types that *are* architecture | |
3582 | dependent. */ | |
7ad6570d AC |
3583 | |
3584 | builtin_type_int0 = | |
3585 | init_type (TYPE_CODE_INT, 0 / 8, | |
3586 | 0, | |
3587 | "int0_t", (struct objfile *) NULL); | |
3588 | builtin_type_int8 = | |
3589 | init_type (TYPE_CODE_INT, 8 / 8, | |
ea37ba09 | 3590 | TYPE_FLAG_NOTTEXT, |
7ad6570d AC |
3591 | "int8_t", (struct objfile *) NULL); |
3592 | builtin_type_uint8 = | |
3593 | init_type (TYPE_CODE_INT, 8 / 8, | |
ea37ba09 | 3594 | TYPE_FLAG_UNSIGNED | TYPE_FLAG_NOTTEXT, |
7ad6570d AC |
3595 | "uint8_t", (struct objfile *) NULL); |
3596 | builtin_type_int16 = | |
3597 | init_type (TYPE_CODE_INT, 16 / 8, | |
3598 | 0, | |
3599 | "int16_t", (struct objfile *) NULL); | |
3600 | builtin_type_uint16 = | |
3601 | init_type (TYPE_CODE_INT, 16 / 8, | |
3602 | TYPE_FLAG_UNSIGNED, | |
3603 | "uint16_t", (struct objfile *) NULL); | |
3604 | builtin_type_int32 = | |
3605 | init_type (TYPE_CODE_INT, 32 / 8, | |
3606 | 0, | |
3607 | "int32_t", (struct objfile *) NULL); | |
3608 | builtin_type_uint32 = | |
3609 | init_type (TYPE_CODE_INT, 32 / 8, | |
3610 | TYPE_FLAG_UNSIGNED, | |
3611 | "uint32_t", (struct objfile *) NULL); | |
3612 | builtin_type_int64 = | |
3613 | init_type (TYPE_CODE_INT, 64 / 8, | |
3614 | 0, | |
3615 | "int64_t", (struct objfile *) NULL); | |
3616 | builtin_type_uint64 = | |
3617 | init_type (TYPE_CODE_INT, 64 / 8, | |
3618 | TYPE_FLAG_UNSIGNED, | |
3619 | "uint64_t", (struct objfile *) NULL); | |
3620 | builtin_type_int128 = | |
3621 | init_type (TYPE_CODE_INT, 128 / 8, | |
3622 | 0, | |
3623 | "int128_t", (struct objfile *) NULL); | |
3624 | builtin_type_uint128 = | |
3625 | init_type (TYPE_CODE_INT, 128 / 8, | |
3626 | TYPE_FLAG_UNSIGNED, | |
3627 | "uint128_t", (struct objfile *) NULL); | |
3628 | ||
7ba81444 MS |
3629 | builtin_type_ieee_single = |
3630 | build_flt (-1, "builtin_type_ieee_single", floatformats_ieee_single); | |
3631 | builtin_type_ieee_double = | |
3632 | build_flt (-1, "builtin_type_ieee_double", floatformats_ieee_double); | |
3633 | builtin_type_i387_ext = | |
3634 | build_flt (-1, "builtin_type_i387_ext", floatformats_i387_ext); | |
3635 | builtin_type_m68881_ext = | |
3636 | build_flt (-1, "builtin_type_m68881_ext", floatformats_m68881_ext); | |
3637 | builtin_type_arm_ext = | |
3638 | build_flt (-1, "builtin_type_arm_ext", floatformats_arm_ext); | |
3639 | builtin_type_ia64_spill = | |
3640 | build_flt (-1, "builtin_type_ia64_spill", floatformats_ia64_spill); | |
3641 | builtin_type_ia64_quad = | |
3642 | build_flt (-1, "builtin_type_ia64_quad", floatformats_ia64_quad); | |
598f52df | 3643 | |
85c07804 AC |
3644 | add_setshow_zinteger_cmd ("overload", no_class, &overload_debug, _("\ |
3645 | Set debugging of C++ overloading."), _("\ | |
3646 | Show debugging of C++ overloading."), _("\ | |
3647 | When enabled, ranking of the functions is displayed."), | |
3648 | NULL, | |
920d2a44 | 3649 | show_overload_debug, |
85c07804 | 3650 | &setdebuglist, &showdebuglist); |
5674de60 | 3651 | |
7ba81444 | 3652 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 UW |
3653 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3654 | &opaque_type_resolution, _("\ | |
3655 | Set resolution of opaque struct/class/union types (if set before loading symbols)."), _("\ | |
3656 | Show resolution of opaque struct/class/union types (if set before loading symbols)."), NULL, | |
3657 | NULL, | |
3658 | show_opaque_type_resolution, | |
3659 | &setlist, &showlist); | |
c906108c | 3660 | } |