Commit | Line | Data |
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c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
4f2aea11 | 2 | |
9b254dd1 | 3 | Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, |
4c38e0a4 JB |
4 | 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
5 | Free Software Foundation, Inc. | |
4f2aea11 | 6 | |
c906108c SS |
7 | Contributed by Cygnus Support, using pieces from other GDB modules. |
8 | ||
c5aa993b | 9 | This file is part of GDB. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is free software; you can redistribute it and/or modify |
12 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 13 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 14 | (at your option) any later version. |
c906108c | 15 | |
c5aa993b JM |
16 | This program is distributed in the hope that it will be useful, |
17 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | GNU General Public License for more details. | |
c906108c | 20 | |
c5aa993b | 21 | You should have received a copy of the GNU General Public License |
a9762ec7 | 22 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
23 | |
24 | #include "defs.h" | |
25 | #include "gdb_string.h" | |
26 | #include "bfd.h" | |
27 | #include "symtab.h" | |
28 | #include "symfile.h" | |
29 | #include "objfiles.h" | |
30 | #include "gdbtypes.h" | |
31 | #include "expression.h" | |
32 | #include "language.h" | |
33 | #include "target.h" | |
34 | #include "value.h" | |
35 | #include "demangle.h" | |
36 | #include "complaints.h" | |
37 | #include "gdbcmd.h" | |
c91ecb25 | 38 | #include "wrapper.h" |
015a42b4 | 39 | #include "cp-abi.h" |
a02fd225 | 40 | #include "gdb_assert.h" |
ae5a43e0 | 41 | #include "hashtab.h" |
c906108c | 42 | |
ac3aafc7 | 43 | |
8da61cc4 | 44 | /* Floatformat pairs. */ |
f9e9243a UW |
45 | const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN] = { |
46 | &floatformat_ieee_half_big, | |
47 | &floatformat_ieee_half_little | |
48 | }; | |
8da61cc4 DJ |
49 | const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { |
50 | &floatformat_ieee_single_big, | |
51 | &floatformat_ieee_single_little | |
52 | }; | |
53 | const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { | |
54 | &floatformat_ieee_double_big, | |
55 | &floatformat_ieee_double_little | |
56 | }; | |
57 | const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { | |
58 | &floatformat_ieee_double_big, | |
59 | &floatformat_ieee_double_littlebyte_bigword | |
60 | }; | |
61 | const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { | |
62 | &floatformat_i387_ext, | |
63 | &floatformat_i387_ext | |
64 | }; | |
65 | const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { | |
66 | &floatformat_m68881_ext, | |
67 | &floatformat_m68881_ext | |
68 | }; | |
69 | const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { | |
70 | &floatformat_arm_ext_big, | |
71 | &floatformat_arm_ext_littlebyte_bigword | |
72 | }; | |
73 | const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { | |
74 | &floatformat_ia64_spill_big, | |
75 | &floatformat_ia64_spill_little | |
76 | }; | |
77 | const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = { | |
78 | &floatformat_ia64_quad_big, | |
79 | &floatformat_ia64_quad_little | |
80 | }; | |
81 | const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { | |
82 | &floatformat_vax_f, | |
83 | &floatformat_vax_f | |
84 | }; | |
85 | const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { | |
86 | &floatformat_vax_d, | |
87 | &floatformat_vax_d | |
88 | }; | |
b14d30e1 JM |
89 | const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { |
90 | &floatformat_ibm_long_double, | |
91 | &floatformat_ibm_long_double | |
92 | }; | |
8da61cc4 | 93 | |
8da61cc4 | 94 | |
c906108c | 95 | int opaque_type_resolution = 1; |
920d2a44 AC |
96 | static void |
97 | show_opaque_type_resolution (struct ui_file *file, int from_tty, | |
7ba81444 MS |
98 | struct cmd_list_element *c, |
99 | const char *value) | |
920d2a44 AC |
100 | { |
101 | fprintf_filtered (file, _("\ | |
102 | Resolution of opaque struct/class/union types (if set before loading symbols) is %s.\n"), | |
103 | value); | |
104 | } | |
105 | ||
5d161b24 | 106 | int overload_debug = 0; |
920d2a44 AC |
107 | static void |
108 | show_overload_debug (struct ui_file *file, int from_tty, | |
109 | struct cmd_list_element *c, const char *value) | |
110 | { | |
7ba81444 MS |
111 | fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"), |
112 | value); | |
920d2a44 | 113 | } |
c906108c | 114 | |
c5aa993b JM |
115 | struct extra |
116 | { | |
117 | char str[128]; | |
118 | int len; | |
7ba81444 | 119 | }; /* Maximum extension is 128! FIXME */ |
c906108c | 120 | |
a14ed312 | 121 | static void print_bit_vector (B_TYPE *, int); |
ad2f7632 | 122 | static void print_arg_types (struct field *, int, int); |
a14ed312 KB |
123 | static void dump_fn_fieldlists (struct type *, int); |
124 | static void print_cplus_stuff (struct type *, int); | |
7a292a7a | 125 | |
c906108c | 126 | |
e9bb382b UW |
127 | /* Allocate a new OBJFILE-associated type structure and fill it |
128 | with some defaults. Space for the type structure is allocated | |
129 | on the objfile's objfile_obstack. */ | |
c906108c SS |
130 | |
131 | struct type * | |
fba45db2 | 132 | alloc_type (struct objfile *objfile) |
c906108c | 133 | { |
52f0bd74 | 134 | struct type *type; |
c906108c | 135 | |
e9bb382b UW |
136 | gdb_assert (objfile != NULL); |
137 | ||
7ba81444 | 138 | /* Alloc the structure and start off with all fields zeroed. */ |
e9bb382b UW |
139 | type = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct type); |
140 | TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (&objfile->objfile_obstack, | |
141 | struct main_type); | |
142 | OBJSTAT (objfile, n_types++); | |
c906108c | 143 | |
e9bb382b UW |
144 | TYPE_OBJFILE_OWNED (type) = 1; |
145 | TYPE_OWNER (type).objfile = objfile; | |
c906108c | 146 | |
7ba81444 | 147 | /* Initialize the fields that might not be zero. */ |
c906108c SS |
148 | |
149 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
c906108c | 150 | TYPE_VPTR_FIELDNO (type) = -1; |
2fdde8f8 | 151 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
c906108c | 152 | |
c16abbde | 153 | return type; |
c906108c SS |
154 | } |
155 | ||
e9bb382b UW |
156 | /* Allocate a new GDBARCH-associated type structure and fill it |
157 | with some defaults. Space for the type structure is allocated | |
158 | on the heap. */ | |
159 | ||
160 | struct type * | |
161 | alloc_type_arch (struct gdbarch *gdbarch) | |
162 | { | |
163 | struct type *type; | |
164 | ||
165 | gdb_assert (gdbarch != NULL); | |
166 | ||
167 | /* Alloc the structure and start off with all fields zeroed. */ | |
168 | ||
169 | type = XZALLOC (struct type); | |
170 | TYPE_MAIN_TYPE (type) = XZALLOC (struct main_type); | |
171 | ||
172 | TYPE_OBJFILE_OWNED (type) = 0; | |
173 | TYPE_OWNER (type).gdbarch = gdbarch; | |
174 | ||
175 | /* Initialize the fields that might not be zero. */ | |
176 | ||
177 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
178 | TYPE_VPTR_FIELDNO (type) = -1; | |
179 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ | |
180 | ||
181 | return type; | |
182 | } | |
183 | ||
184 | /* If TYPE is objfile-associated, allocate a new type structure | |
185 | associated with the same objfile. If TYPE is gdbarch-associated, | |
186 | allocate a new type structure associated with the same gdbarch. */ | |
187 | ||
188 | struct type * | |
189 | alloc_type_copy (const struct type *type) | |
190 | { | |
191 | if (TYPE_OBJFILE_OWNED (type)) | |
192 | return alloc_type (TYPE_OWNER (type).objfile); | |
193 | else | |
194 | return alloc_type_arch (TYPE_OWNER (type).gdbarch); | |
195 | } | |
196 | ||
197 | /* If TYPE is gdbarch-associated, return that architecture. | |
198 | If TYPE is objfile-associated, return that objfile's architecture. */ | |
199 | ||
200 | struct gdbarch * | |
201 | get_type_arch (const struct type *type) | |
202 | { | |
203 | if (TYPE_OBJFILE_OWNED (type)) | |
204 | return get_objfile_arch (TYPE_OWNER (type).objfile); | |
205 | else | |
206 | return TYPE_OWNER (type).gdbarch; | |
207 | } | |
208 | ||
209 | ||
2fdde8f8 DJ |
210 | /* Alloc a new type instance structure, fill it with some defaults, |
211 | and point it at OLDTYPE. Allocate the new type instance from the | |
212 | same place as OLDTYPE. */ | |
213 | ||
214 | static struct type * | |
215 | alloc_type_instance (struct type *oldtype) | |
216 | { | |
217 | struct type *type; | |
218 | ||
219 | /* Allocate the structure. */ | |
220 | ||
e9bb382b | 221 | if (! TYPE_OBJFILE_OWNED (oldtype)) |
1deafd4e | 222 | type = XZALLOC (struct type); |
2fdde8f8 | 223 | else |
1deafd4e PA |
224 | type = OBSTACK_ZALLOC (&TYPE_OBJFILE (oldtype)->objfile_obstack, |
225 | struct type); | |
226 | ||
2fdde8f8 DJ |
227 | TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype); |
228 | ||
229 | TYPE_CHAIN (type) = type; /* Chain back to itself for now. */ | |
230 | ||
c16abbde | 231 | return type; |
2fdde8f8 DJ |
232 | } |
233 | ||
234 | /* Clear all remnants of the previous type at TYPE, in preparation for | |
e9bb382b | 235 | replacing it with something else. Preserve owner information. */ |
2fdde8f8 DJ |
236 | static void |
237 | smash_type (struct type *type) | |
238 | { | |
e9bb382b UW |
239 | int objfile_owned = TYPE_OBJFILE_OWNED (type); |
240 | union type_owner owner = TYPE_OWNER (type); | |
241 | ||
2fdde8f8 DJ |
242 | memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
243 | ||
e9bb382b UW |
244 | /* Restore owner information. */ |
245 | TYPE_OBJFILE_OWNED (type) = objfile_owned; | |
246 | TYPE_OWNER (type) = owner; | |
247 | ||
2fdde8f8 DJ |
248 | /* For now, delete the rings. */ |
249 | TYPE_CHAIN (type) = type; | |
250 | ||
251 | /* For now, leave the pointer/reference types alone. */ | |
252 | } | |
253 | ||
c906108c SS |
254 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
255 | to a pointer to memory where the pointer type should be stored. | |
256 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
257 | We allocate new memory if needed. */ | |
258 | ||
259 | struct type * | |
fba45db2 | 260 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 261 | { |
52f0bd74 | 262 | struct type *ntype; /* New type */ |
053cb41b | 263 | struct type *chain; |
c906108c SS |
264 | |
265 | ntype = TYPE_POINTER_TYPE (type); | |
266 | ||
c5aa993b | 267 | if (ntype) |
c906108c | 268 | { |
c5aa993b | 269 | if (typeptr == 0) |
7ba81444 MS |
270 | return ntype; /* Don't care about alloc, |
271 | and have new type. */ | |
c906108c | 272 | else if (*typeptr == 0) |
c5aa993b | 273 | { |
7ba81444 | 274 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 275 | return ntype; |
c5aa993b | 276 | } |
c906108c SS |
277 | } |
278 | ||
279 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
280 | { | |
e9bb382b | 281 | ntype = alloc_type_copy (type); |
c906108c SS |
282 | if (typeptr) |
283 | *typeptr = ntype; | |
284 | } | |
7ba81444 | 285 | else /* We have storage, but need to reset it. */ |
c906108c SS |
286 | { |
287 | ntype = *typeptr; | |
053cb41b | 288 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 289 | smash_type (ntype); |
053cb41b | 290 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
291 | } |
292 | ||
293 | TYPE_TARGET_TYPE (ntype) = type; | |
294 | TYPE_POINTER_TYPE (type) = ntype; | |
295 | ||
7ba81444 MS |
296 | /* FIXME! Assume the machine has only one representation for |
297 | pointers! */ | |
c906108c | 298 | |
50810684 UW |
299 | TYPE_LENGTH (ntype) |
300 | = gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c SS |
301 | TYPE_CODE (ntype) = TYPE_CODE_PTR; |
302 | ||
67b2adb2 | 303 | /* Mark pointers as unsigned. The target converts between pointers |
76e71323 | 304 | and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and |
7ba81444 | 305 | gdbarch_address_to_pointer. */ |
876cecd0 | 306 | TYPE_UNSIGNED (ntype) = 1; |
c5aa993b | 307 | |
c906108c SS |
308 | if (!TYPE_POINTER_TYPE (type)) /* Remember it, if don't have one. */ |
309 | TYPE_POINTER_TYPE (type) = ntype; | |
310 | ||
053cb41b JB |
311 | /* Update the length of all the other variants of this type. */ |
312 | chain = TYPE_CHAIN (ntype); | |
313 | while (chain != ntype) | |
314 | { | |
315 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
316 | chain = TYPE_CHAIN (chain); | |
317 | } | |
318 | ||
c906108c SS |
319 | return ntype; |
320 | } | |
321 | ||
322 | /* Given a type TYPE, return a type of pointers to that type. | |
323 | May need to construct such a type if this is the first use. */ | |
324 | ||
325 | struct type * | |
fba45db2 | 326 | lookup_pointer_type (struct type *type) |
c906108c | 327 | { |
c5aa993b | 328 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
329 | } |
330 | ||
7ba81444 MS |
331 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, |
332 | points to a pointer to memory where the reference type should be | |
333 | stored. If *TYPEPTR is zero, update it to point to the reference | |
334 | type we return. We allocate new memory if needed. */ | |
c906108c SS |
335 | |
336 | struct type * | |
fba45db2 | 337 | make_reference_type (struct type *type, struct type **typeptr) |
c906108c | 338 | { |
52f0bd74 | 339 | struct type *ntype; /* New type */ |
1e98b326 | 340 | struct type *chain; |
c906108c SS |
341 | |
342 | ntype = TYPE_REFERENCE_TYPE (type); | |
343 | ||
c5aa993b | 344 | if (ntype) |
c906108c | 345 | { |
c5aa993b | 346 | if (typeptr == 0) |
7ba81444 MS |
347 | return ntype; /* Don't care about alloc, |
348 | and have new type. */ | |
c906108c | 349 | else if (*typeptr == 0) |
c5aa993b | 350 | { |
7ba81444 | 351 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 352 | return ntype; |
c5aa993b | 353 | } |
c906108c SS |
354 | } |
355 | ||
356 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
357 | { | |
e9bb382b | 358 | ntype = alloc_type_copy (type); |
c906108c SS |
359 | if (typeptr) |
360 | *typeptr = ntype; | |
361 | } | |
7ba81444 | 362 | else /* We have storage, but need to reset it. */ |
c906108c SS |
363 | { |
364 | ntype = *typeptr; | |
1e98b326 | 365 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 366 | smash_type (ntype); |
1e98b326 | 367 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
368 | } |
369 | ||
370 | TYPE_TARGET_TYPE (ntype) = type; | |
371 | TYPE_REFERENCE_TYPE (type) = ntype; | |
372 | ||
7ba81444 MS |
373 | /* FIXME! Assume the machine has only one representation for |
374 | references, and that it matches the (only) representation for | |
375 | pointers! */ | |
c906108c | 376 | |
50810684 UW |
377 | TYPE_LENGTH (ntype) = |
378 | gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c | 379 | TYPE_CODE (ntype) = TYPE_CODE_REF; |
c5aa993b | 380 | |
c906108c SS |
381 | if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */ |
382 | TYPE_REFERENCE_TYPE (type) = ntype; | |
383 | ||
1e98b326 JB |
384 | /* Update the length of all the other variants of this type. */ |
385 | chain = TYPE_CHAIN (ntype); | |
386 | while (chain != ntype) | |
387 | { | |
388 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
389 | chain = TYPE_CHAIN (chain); | |
390 | } | |
391 | ||
c906108c SS |
392 | return ntype; |
393 | } | |
394 | ||
7ba81444 MS |
395 | /* Same as above, but caller doesn't care about memory allocation |
396 | details. */ | |
c906108c SS |
397 | |
398 | struct type * | |
fba45db2 | 399 | lookup_reference_type (struct type *type) |
c906108c | 400 | { |
c5aa993b | 401 | return make_reference_type (type, (struct type **) 0); |
c906108c SS |
402 | } |
403 | ||
7ba81444 MS |
404 | /* Lookup a function type that returns type TYPE. TYPEPTR, if |
405 | nonzero, points to a pointer to memory where the function type | |
406 | should be stored. If *TYPEPTR is zero, update it to point to the | |
0c8b41f1 | 407 | function type we return. We allocate new memory if needed. */ |
c906108c SS |
408 | |
409 | struct type * | |
0c8b41f1 | 410 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 411 | { |
52f0bd74 | 412 | struct type *ntype; /* New type */ |
c906108c SS |
413 | |
414 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
415 | { | |
e9bb382b | 416 | ntype = alloc_type_copy (type); |
c906108c SS |
417 | if (typeptr) |
418 | *typeptr = ntype; | |
419 | } | |
7ba81444 | 420 | else /* We have storage, but need to reset it. */ |
c906108c SS |
421 | { |
422 | ntype = *typeptr; | |
2fdde8f8 | 423 | smash_type (ntype); |
c906108c SS |
424 | } |
425 | ||
426 | TYPE_TARGET_TYPE (ntype) = type; | |
427 | ||
428 | TYPE_LENGTH (ntype) = 1; | |
429 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
c5aa993b | 430 | |
c906108c SS |
431 | return ntype; |
432 | } | |
433 | ||
434 | ||
435 | /* Given a type TYPE, return a type of functions that return that type. | |
436 | May need to construct such a type if this is the first use. */ | |
437 | ||
438 | struct type * | |
fba45db2 | 439 | lookup_function_type (struct type *type) |
c906108c | 440 | { |
0c8b41f1 | 441 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
442 | } |
443 | ||
47663de5 MS |
444 | /* Identify address space identifier by name -- |
445 | return the integer flag defined in gdbtypes.h. */ | |
446 | extern int | |
50810684 | 447 | address_space_name_to_int (struct gdbarch *gdbarch, char *space_identifier) |
47663de5 | 448 | { |
8b2dbe47 | 449 | int type_flags; |
d8734c88 | 450 | |
7ba81444 | 451 | /* Check for known address space delimiters. */ |
47663de5 | 452 | if (!strcmp (space_identifier, "code")) |
876cecd0 | 453 | return TYPE_INSTANCE_FLAG_CODE_SPACE; |
47663de5 | 454 | else if (!strcmp (space_identifier, "data")) |
876cecd0 | 455 | return TYPE_INSTANCE_FLAG_DATA_SPACE; |
5f11f355 AC |
456 | else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
457 | && gdbarch_address_class_name_to_type_flags (gdbarch, | |
458 | space_identifier, | |
459 | &type_flags)) | |
8b2dbe47 | 460 | return type_flags; |
47663de5 | 461 | else |
8a3fe4f8 | 462 | error (_("Unknown address space specifier: \"%s\""), space_identifier); |
47663de5 MS |
463 | } |
464 | ||
465 | /* Identify address space identifier by integer flag as defined in | |
7ba81444 | 466 | gdbtypes.h -- return the string version of the adress space name. */ |
47663de5 | 467 | |
321432c0 | 468 | const char * |
50810684 | 469 | address_space_int_to_name (struct gdbarch *gdbarch, int space_flag) |
47663de5 | 470 | { |
876cecd0 | 471 | if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE) |
47663de5 | 472 | return "code"; |
876cecd0 | 473 | else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE) |
47663de5 | 474 | return "data"; |
876cecd0 | 475 | else if ((space_flag & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) |
5f11f355 AC |
476 | && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
477 | return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); | |
47663de5 MS |
478 | else |
479 | return NULL; | |
480 | } | |
481 | ||
2fdde8f8 | 482 | /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
ad766c0a JB |
483 | |
484 | If STORAGE is non-NULL, create the new type instance there. | |
485 | STORAGE must be in the same obstack as TYPE. */ | |
47663de5 | 486 | |
b9362cc7 | 487 | static struct type * |
2fdde8f8 DJ |
488 | make_qualified_type (struct type *type, int new_flags, |
489 | struct type *storage) | |
47663de5 MS |
490 | { |
491 | struct type *ntype; | |
492 | ||
493 | ntype = type; | |
5f61c20e JK |
494 | do |
495 | { | |
496 | if (TYPE_INSTANCE_FLAGS (ntype) == new_flags) | |
497 | return ntype; | |
498 | ntype = TYPE_CHAIN (ntype); | |
499 | } | |
500 | while (ntype != type); | |
47663de5 | 501 | |
2fdde8f8 DJ |
502 | /* Create a new type instance. */ |
503 | if (storage == NULL) | |
504 | ntype = alloc_type_instance (type); | |
505 | else | |
506 | { | |
7ba81444 MS |
507 | /* If STORAGE was provided, it had better be in the same objfile |
508 | as TYPE. Otherwise, we can't link it into TYPE's cv chain: | |
509 | if one objfile is freed and the other kept, we'd have | |
510 | dangling pointers. */ | |
ad766c0a JB |
511 | gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage)); |
512 | ||
2fdde8f8 DJ |
513 | ntype = storage; |
514 | TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); | |
515 | TYPE_CHAIN (ntype) = ntype; | |
516 | } | |
47663de5 MS |
517 | |
518 | /* Pointers or references to the original type are not relevant to | |
2fdde8f8 | 519 | the new type. */ |
47663de5 MS |
520 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
521 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
47663de5 | 522 | |
2fdde8f8 DJ |
523 | /* Chain the new qualified type to the old type. */ |
524 | TYPE_CHAIN (ntype) = TYPE_CHAIN (type); | |
525 | TYPE_CHAIN (type) = ntype; | |
526 | ||
527 | /* Now set the instance flags and return the new type. */ | |
528 | TYPE_INSTANCE_FLAGS (ntype) = new_flags; | |
47663de5 | 529 | |
ab5d3da6 KB |
530 | /* Set length of new type to that of the original type. */ |
531 | TYPE_LENGTH (ntype) = TYPE_LENGTH (type); | |
532 | ||
47663de5 MS |
533 | return ntype; |
534 | } | |
535 | ||
2fdde8f8 DJ |
536 | /* Make an address-space-delimited variant of a type -- a type that |
537 | is identical to the one supplied except that it has an address | |
538 | space attribute attached to it (such as "code" or "data"). | |
539 | ||
7ba81444 MS |
540 | The space attributes "code" and "data" are for Harvard |
541 | architectures. The address space attributes are for architectures | |
542 | which have alternately sized pointers or pointers with alternate | |
543 | representations. */ | |
2fdde8f8 DJ |
544 | |
545 | struct type * | |
546 | make_type_with_address_space (struct type *type, int space_flag) | |
547 | { | |
2fdde8f8 | 548 | int new_flags = ((TYPE_INSTANCE_FLAGS (type) |
876cecd0 TT |
549 | & ~(TYPE_INSTANCE_FLAG_CODE_SPACE |
550 | | TYPE_INSTANCE_FLAG_DATA_SPACE | |
551 | | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)) | |
2fdde8f8 DJ |
552 | | space_flag); |
553 | ||
554 | return make_qualified_type (type, new_flags, NULL); | |
555 | } | |
c906108c SS |
556 | |
557 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
558 | one supplied except that it may have const or volatile attributes | |
559 | CNST is a flag for setting the const attribute | |
560 | VOLTL is a flag for setting the volatile attribute | |
561 | TYPE is the base type whose variant we are creating. | |
c906108c | 562 | |
ad766c0a JB |
563 | If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to |
564 | storage to hold the new qualified type; *TYPEPTR and TYPE must be | |
565 | in the same objfile. Otherwise, allocate fresh memory for the new | |
566 | type whereever TYPE lives. If TYPEPTR is non-zero, set it to the | |
567 | new type we construct. */ | |
c906108c | 568 | struct type * |
7ba81444 MS |
569 | make_cv_type (int cnst, int voltl, |
570 | struct type *type, | |
571 | struct type **typeptr) | |
c906108c | 572 | { |
52f0bd74 | 573 | struct type *ntype; /* New type */ |
c906108c | 574 | |
2fdde8f8 | 575 | int new_flags = (TYPE_INSTANCE_FLAGS (type) |
308d96ed MS |
576 | & ~(TYPE_INSTANCE_FLAG_CONST |
577 | | TYPE_INSTANCE_FLAG_VOLATILE)); | |
c906108c | 578 | |
c906108c | 579 | if (cnst) |
876cecd0 | 580 | new_flags |= TYPE_INSTANCE_FLAG_CONST; |
c906108c SS |
581 | |
582 | if (voltl) | |
876cecd0 | 583 | new_flags |= TYPE_INSTANCE_FLAG_VOLATILE; |
a02fd225 | 584 | |
2fdde8f8 | 585 | if (typeptr && *typeptr != NULL) |
a02fd225 | 586 | { |
ad766c0a JB |
587 | /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
588 | a C-V variant chain that threads across objfiles: if one | |
589 | objfile gets freed, then the other has a broken C-V chain. | |
590 | ||
591 | This code used to try to copy over the main type from TYPE to | |
592 | *TYPEPTR if they were in different objfiles, but that's | |
593 | wrong, too: TYPE may have a field list or member function | |
594 | lists, which refer to types of their own, etc. etc. The | |
595 | whole shebang would need to be copied over recursively; you | |
596 | can't have inter-objfile pointers. The only thing to do is | |
597 | to leave stub types as stub types, and look them up afresh by | |
598 | name each time you encounter them. */ | |
599 | gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type)); | |
2fdde8f8 DJ |
600 | } |
601 | ||
7ba81444 MS |
602 | ntype = make_qualified_type (type, new_flags, |
603 | typeptr ? *typeptr : NULL); | |
c906108c | 604 | |
2fdde8f8 DJ |
605 | if (typeptr != NULL) |
606 | *typeptr = ntype; | |
a02fd225 | 607 | |
2fdde8f8 | 608 | return ntype; |
a02fd225 | 609 | } |
c906108c | 610 | |
2fdde8f8 DJ |
611 | /* Replace the contents of ntype with the type *type. This changes the |
612 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
613 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 614 | |
cda6c68a JB |
615 | In order to build recursive types, it's inevitable that we'll need |
616 | to update types in place --- but this sort of indiscriminate | |
617 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
618 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
619 | clear if more steps are needed. */ | |
dd6bda65 DJ |
620 | void |
621 | replace_type (struct type *ntype, struct type *type) | |
622 | { | |
ab5d3da6 | 623 | struct type *chain; |
dd6bda65 | 624 | |
ad766c0a JB |
625 | /* These two types had better be in the same objfile. Otherwise, |
626 | the assignment of one type's main type structure to the other | |
627 | will produce a type with references to objects (names; field | |
628 | lists; etc.) allocated on an objfile other than its own. */ | |
629 | gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (ntype)); | |
630 | ||
2fdde8f8 | 631 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 632 | |
7ba81444 MS |
633 | /* The type length is not a part of the main type. Update it for |
634 | each type on the variant chain. */ | |
ab5d3da6 | 635 | chain = ntype; |
5f61c20e JK |
636 | do |
637 | { | |
638 | /* Assert that this element of the chain has no address-class bits | |
639 | set in its flags. Such type variants might have type lengths | |
640 | which are supposed to be different from the non-address-class | |
641 | variants. This assertion shouldn't ever be triggered because | |
642 | symbol readers which do construct address-class variants don't | |
643 | call replace_type(). */ | |
644 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
645 | ||
646 | TYPE_LENGTH (chain) = TYPE_LENGTH (type); | |
647 | chain = TYPE_CHAIN (chain); | |
648 | } | |
649 | while (ntype != chain); | |
ab5d3da6 | 650 | |
2fdde8f8 DJ |
651 | /* Assert that the two types have equivalent instance qualifiers. |
652 | This should be true for at least all of our debug readers. */ | |
653 | gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type)); | |
dd6bda65 DJ |
654 | } |
655 | ||
c906108c SS |
656 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
657 | May need to construct such a type if this is the first use. | |
658 | The TYPE is the type of the member. The DOMAIN is the type | |
659 | of the aggregate that the member belongs to. */ | |
660 | ||
661 | struct type * | |
0d5de010 | 662 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 663 | { |
52f0bd74 | 664 | struct type *mtype; |
c906108c | 665 | |
e9bb382b | 666 | mtype = alloc_type_copy (type); |
0d5de010 | 667 | smash_to_memberptr_type (mtype, domain, type); |
c16abbde | 668 | return mtype; |
c906108c SS |
669 | } |
670 | ||
0d5de010 DJ |
671 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
672 | ||
673 | struct type * | |
674 | lookup_methodptr_type (struct type *to_type) | |
675 | { | |
676 | struct type *mtype; | |
677 | ||
e9bb382b | 678 | mtype = alloc_type_copy (to_type); |
0b92b5bb | 679 | smash_to_methodptr_type (mtype, to_type); |
0d5de010 DJ |
680 | return mtype; |
681 | } | |
682 | ||
7ba81444 MS |
683 | /* Allocate a stub method whose return type is TYPE. This apparently |
684 | happens for speed of symbol reading, since parsing out the | |
685 | arguments to the method is cpu-intensive, the way we are doing it. | |
686 | So, we will fill in arguments later. This always returns a fresh | |
687 | type. */ | |
c906108c SS |
688 | |
689 | struct type * | |
fba45db2 | 690 | allocate_stub_method (struct type *type) |
c906108c SS |
691 | { |
692 | struct type *mtype; | |
693 | ||
e9bb382b UW |
694 | mtype = alloc_type_copy (type); |
695 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; | |
696 | TYPE_LENGTH (mtype) = 1; | |
697 | TYPE_STUB (mtype) = 1; | |
c906108c SS |
698 | TYPE_TARGET_TYPE (mtype) = type; |
699 | /* _DOMAIN_TYPE (mtype) = unknown yet */ | |
c16abbde | 700 | return mtype; |
c906108c SS |
701 | } |
702 | ||
7ba81444 MS |
703 | /* Create a range type using either a blank type supplied in |
704 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
705 | INDEX_TYPE. | |
c906108c | 706 | |
7ba81444 MS |
707 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND |
708 | to HIGH_BOUND, inclusive. | |
c906108c | 709 | |
7ba81444 MS |
710 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
711 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
c906108c SS |
712 | |
713 | struct type * | |
fba45db2 | 714 | create_range_type (struct type *result_type, struct type *index_type, |
43bbcdc2 | 715 | LONGEST low_bound, LONGEST high_bound) |
c906108c SS |
716 | { |
717 | if (result_type == NULL) | |
e9bb382b | 718 | result_type = alloc_type_copy (index_type); |
c906108c SS |
719 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; |
720 | TYPE_TARGET_TYPE (result_type) = index_type; | |
74a9bb82 | 721 | if (TYPE_STUB (index_type)) |
876cecd0 | 722 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c SS |
723 | else |
724 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
43bbcdc2 PH |
725 | TYPE_RANGE_DATA (result_type) = (struct range_bounds *) |
726 | TYPE_ZALLOC (result_type, sizeof (struct range_bounds)); | |
262452ec JK |
727 | TYPE_LOW_BOUND (result_type) = low_bound; |
728 | TYPE_HIGH_BOUND (result_type) = high_bound; | |
c906108c | 729 | |
c5aa993b | 730 | if (low_bound >= 0) |
876cecd0 | 731 | TYPE_UNSIGNED (result_type) = 1; |
c906108c | 732 | |
262452ec | 733 | return result_type; |
c906108c SS |
734 | } |
735 | ||
7ba81444 MS |
736 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
737 | TYPE. Return 1 if type is a range type, 0 if it is discrete (and | |
738 | bounds will fit in LONGEST), or -1 otherwise. */ | |
c906108c SS |
739 | |
740 | int | |
fba45db2 | 741 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c SS |
742 | { |
743 | CHECK_TYPEDEF (type); | |
744 | switch (TYPE_CODE (type)) | |
745 | { | |
746 | case TYPE_CODE_RANGE: | |
747 | *lowp = TYPE_LOW_BOUND (type); | |
748 | *highp = TYPE_HIGH_BOUND (type); | |
749 | return 1; | |
750 | case TYPE_CODE_ENUM: | |
751 | if (TYPE_NFIELDS (type) > 0) | |
752 | { | |
753 | /* The enums may not be sorted by value, so search all | |
754 | entries */ | |
755 | int i; | |
756 | ||
757 | *lowp = *highp = TYPE_FIELD_BITPOS (type, 0); | |
758 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
759 | { | |
760 | if (TYPE_FIELD_BITPOS (type, i) < *lowp) | |
761 | *lowp = TYPE_FIELD_BITPOS (type, i); | |
762 | if (TYPE_FIELD_BITPOS (type, i) > *highp) | |
763 | *highp = TYPE_FIELD_BITPOS (type, i); | |
764 | } | |
765 | ||
7ba81444 | 766 | /* Set unsigned indicator if warranted. */ |
c5aa993b | 767 | if (*lowp >= 0) |
c906108c | 768 | { |
876cecd0 | 769 | TYPE_UNSIGNED (type) = 1; |
c906108c SS |
770 | } |
771 | } | |
772 | else | |
773 | { | |
774 | *lowp = 0; | |
775 | *highp = -1; | |
776 | } | |
777 | return 0; | |
778 | case TYPE_CODE_BOOL: | |
779 | *lowp = 0; | |
780 | *highp = 1; | |
781 | return 0; | |
782 | case TYPE_CODE_INT: | |
c5aa993b | 783 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
784 | return -1; |
785 | if (!TYPE_UNSIGNED (type)) | |
786 | { | |
c5aa993b | 787 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
788 | *highp = -*lowp - 1; |
789 | return 0; | |
790 | } | |
7ba81444 | 791 | /* ... fall through for unsigned ints ... */ |
c906108c SS |
792 | case TYPE_CODE_CHAR: |
793 | *lowp = 0; | |
794 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 | 795 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
7ba81444 | 796 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
c906108c SS |
797 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
798 | *highp = (*highp - 1) | *highp; | |
799 | return 0; | |
800 | default: | |
801 | return -1; | |
802 | } | |
803 | } | |
804 | ||
7ba81444 MS |
805 | /* Create an array type using either a blank type supplied in |
806 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
807 | RANGE_TYPE. | |
c906108c SS |
808 | |
809 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
810 | RANGE_TYPE. | |
811 | ||
7ba81444 MS |
812 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
813 | sure it is TYPE_CODE_UNDEF before we bash it into an array | |
814 | type? */ | |
c906108c SS |
815 | |
816 | struct type * | |
7ba81444 MS |
817 | create_array_type (struct type *result_type, |
818 | struct type *element_type, | |
fba45db2 | 819 | struct type *range_type) |
c906108c SS |
820 | { |
821 | LONGEST low_bound, high_bound; | |
822 | ||
823 | if (result_type == NULL) | |
e9bb382b UW |
824 | result_type = alloc_type_copy (range_type); |
825 | ||
c906108c SS |
826 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
827 | TYPE_TARGET_TYPE (result_type) = element_type; | |
828 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
829 | low_bound = high_bound = 0; | |
830 | CHECK_TYPEDEF (element_type); | |
ab0d6e0d JB |
831 | /* Be careful when setting the array length. Ada arrays can be |
832 | empty arrays with the high_bound being smaller than the low_bound. | |
833 | In such cases, the array length should be zero. */ | |
834 | if (high_bound < low_bound) | |
835 | TYPE_LENGTH (result_type) = 0; | |
836 | else | |
837 | TYPE_LENGTH (result_type) = | |
838 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
c906108c SS |
839 | TYPE_NFIELDS (result_type) = 1; |
840 | TYPE_FIELDS (result_type) = | |
1deafd4e | 841 | (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); |
262452ec | 842 | TYPE_INDEX_TYPE (result_type) = range_type; |
c906108c SS |
843 | TYPE_VPTR_FIELDNO (result_type) = -1; |
844 | ||
845 | /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays */ | |
846 | if (TYPE_LENGTH (result_type) == 0) | |
876cecd0 | 847 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c | 848 | |
c16abbde | 849 | return result_type; |
c906108c SS |
850 | } |
851 | ||
e3506a9f UW |
852 | struct type * |
853 | lookup_array_range_type (struct type *element_type, | |
854 | int low_bound, int high_bound) | |
855 | { | |
50810684 | 856 | struct gdbarch *gdbarch = get_type_arch (element_type); |
e3506a9f UW |
857 | struct type *index_type = builtin_type (gdbarch)->builtin_int; |
858 | struct type *range_type | |
859 | = create_range_type (NULL, index_type, low_bound, high_bound); | |
d8734c88 | 860 | |
e3506a9f UW |
861 | return create_array_type (NULL, element_type, range_type); |
862 | } | |
863 | ||
7ba81444 MS |
864 | /* Create a string type using either a blank type supplied in |
865 | RESULT_TYPE, or creating a new type. String types are similar | |
866 | enough to array of char types that we can use create_array_type to | |
867 | build the basic type and then bash it into a string type. | |
c906108c SS |
868 | |
869 | For fixed length strings, the range type contains 0 as the lower | |
870 | bound and the length of the string minus one as the upper bound. | |
871 | ||
7ba81444 MS |
872 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
873 | sure it is TYPE_CODE_UNDEF before we bash it into a string | |
874 | type? */ | |
c906108c SS |
875 | |
876 | struct type * | |
3b7538c0 UW |
877 | create_string_type (struct type *result_type, |
878 | struct type *string_char_type, | |
7ba81444 | 879 | struct type *range_type) |
c906108c SS |
880 | { |
881 | result_type = create_array_type (result_type, | |
f290d38e | 882 | string_char_type, |
c906108c SS |
883 | range_type); |
884 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
c16abbde | 885 | return result_type; |
c906108c SS |
886 | } |
887 | ||
e3506a9f UW |
888 | struct type * |
889 | lookup_string_range_type (struct type *string_char_type, | |
890 | int low_bound, int high_bound) | |
891 | { | |
892 | struct type *result_type; | |
d8734c88 | 893 | |
e3506a9f UW |
894 | result_type = lookup_array_range_type (string_char_type, |
895 | low_bound, high_bound); | |
896 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
897 | return result_type; | |
898 | } | |
899 | ||
c906108c | 900 | struct type * |
fba45db2 | 901 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c | 902 | { |
c906108c | 903 | if (result_type == NULL) |
e9bb382b UW |
904 | result_type = alloc_type_copy (domain_type); |
905 | ||
c906108c SS |
906 | TYPE_CODE (result_type) = TYPE_CODE_SET; |
907 | TYPE_NFIELDS (result_type) = 1; | |
1deafd4e | 908 | TYPE_FIELDS (result_type) = TYPE_ZALLOC (result_type, sizeof (struct field)); |
c906108c | 909 | |
74a9bb82 | 910 | if (!TYPE_STUB (domain_type)) |
c906108c | 911 | { |
f9780d5b | 912 | LONGEST low_bound, high_bound, bit_length; |
d8734c88 | 913 | |
c906108c SS |
914 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
915 | low_bound = high_bound = 0; | |
916 | bit_length = high_bound - low_bound + 1; | |
917 | TYPE_LENGTH (result_type) | |
918 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
f9780d5b | 919 | if (low_bound >= 0) |
876cecd0 | 920 | TYPE_UNSIGNED (result_type) = 1; |
c906108c SS |
921 | } |
922 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
923 | ||
c16abbde | 924 | return result_type; |
c906108c SS |
925 | } |
926 | ||
ea37ba09 DJ |
927 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
928 | and any array types nested inside it. */ | |
929 | ||
930 | void | |
931 | make_vector_type (struct type *array_type) | |
932 | { | |
933 | struct type *inner_array, *elt_type; | |
934 | int flags; | |
935 | ||
936 | /* Find the innermost array type, in case the array is | |
937 | multi-dimensional. */ | |
938 | inner_array = array_type; | |
939 | while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY) | |
940 | inner_array = TYPE_TARGET_TYPE (inner_array); | |
941 | ||
942 | elt_type = TYPE_TARGET_TYPE (inner_array); | |
943 | if (TYPE_CODE (elt_type) == TYPE_CODE_INT) | |
944 | { | |
945 | flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_FLAG_NOTTEXT; | |
946 | elt_type = make_qualified_type (elt_type, flags, NULL); | |
947 | TYPE_TARGET_TYPE (inner_array) = elt_type; | |
948 | } | |
949 | ||
876cecd0 | 950 | TYPE_VECTOR (array_type) = 1; |
ea37ba09 DJ |
951 | } |
952 | ||
794ac428 | 953 | struct type * |
ac3aafc7 EZ |
954 | init_vector_type (struct type *elt_type, int n) |
955 | { | |
956 | struct type *array_type; | |
d8734c88 | 957 | |
e3506a9f | 958 | array_type = lookup_array_range_type (elt_type, 0, n - 1); |
ea37ba09 | 959 | make_vector_type (array_type); |
ac3aafc7 EZ |
960 | return array_type; |
961 | } | |
962 | ||
0d5de010 DJ |
963 | /* Smash TYPE to be a type of pointers to members of DOMAIN with type |
964 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a | |
965 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
966 | TYPE doesn't include the offset (that's the value of the MEMBER | |
967 | itself), but does include the structure type into which it points | |
968 | (for some reason). | |
c906108c | 969 | |
7ba81444 MS |
970 | When "smashing" the type, we preserve the objfile that the old type |
971 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
972 | allocated. */ |
973 | ||
974 | void | |
0d5de010 DJ |
975 | smash_to_memberptr_type (struct type *type, struct type *domain, |
976 | struct type *to_type) | |
c906108c | 977 | { |
2fdde8f8 | 978 | smash_type (type); |
c906108c SS |
979 | TYPE_TARGET_TYPE (type) = to_type; |
980 | TYPE_DOMAIN_TYPE (type) = domain; | |
0d5de010 DJ |
981 | /* Assume that a data member pointer is the same size as a normal |
982 | pointer. */ | |
50810684 UW |
983 | TYPE_LENGTH (type) |
984 | = gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT; | |
0d5de010 | 985 | TYPE_CODE (type) = TYPE_CODE_MEMBERPTR; |
c906108c SS |
986 | } |
987 | ||
0b92b5bb TT |
988 | /* Smash TYPE to be a type of pointer to methods type TO_TYPE. |
989 | ||
990 | When "smashing" the type, we preserve the objfile that the old type | |
991 | pointed to, since we aren't changing where the type is actually | |
992 | allocated. */ | |
993 | ||
994 | void | |
995 | smash_to_methodptr_type (struct type *type, struct type *to_type) | |
996 | { | |
997 | smash_type (type); | |
998 | TYPE_TARGET_TYPE (type) = to_type; | |
999 | TYPE_DOMAIN_TYPE (type) = TYPE_DOMAIN_TYPE (to_type); | |
1000 | TYPE_LENGTH (type) = cplus_method_ptr_size (to_type); | |
1001 | TYPE_CODE (type) = TYPE_CODE_METHODPTR; | |
1002 | } | |
1003 | ||
c906108c SS |
1004 | /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE. |
1005 | METHOD just means `function that gets an extra "this" argument'. | |
1006 | ||
7ba81444 MS |
1007 | When "smashing" the type, we preserve the objfile that the old type |
1008 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1009 | allocated. */ |
1010 | ||
1011 | void | |
fba45db2 | 1012 | smash_to_method_type (struct type *type, struct type *domain, |
ad2f7632 DJ |
1013 | struct type *to_type, struct field *args, |
1014 | int nargs, int varargs) | |
c906108c | 1015 | { |
2fdde8f8 | 1016 | smash_type (type); |
c906108c SS |
1017 | TYPE_TARGET_TYPE (type) = to_type; |
1018 | TYPE_DOMAIN_TYPE (type) = domain; | |
ad2f7632 DJ |
1019 | TYPE_FIELDS (type) = args; |
1020 | TYPE_NFIELDS (type) = nargs; | |
1021 | if (varargs) | |
876cecd0 | 1022 | TYPE_VARARGS (type) = 1; |
c906108c SS |
1023 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
1024 | TYPE_CODE (type) = TYPE_CODE_METHOD; | |
1025 | } | |
1026 | ||
1027 | /* Return a typename for a struct/union/enum type without "struct ", | |
1028 | "union ", or "enum ". If the type has a NULL name, return NULL. */ | |
1029 | ||
1030 | char * | |
aa1ee363 | 1031 | type_name_no_tag (const struct type *type) |
c906108c SS |
1032 | { |
1033 | if (TYPE_TAG_NAME (type) != NULL) | |
1034 | return TYPE_TAG_NAME (type); | |
1035 | ||
7ba81444 MS |
1036 | /* Is there code which expects this to return the name if there is |
1037 | no tag name? My guess is that this is mainly used for C++ in | |
1038 | cases where the two will always be the same. */ | |
c906108c SS |
1039 | return TYPE_NAME (type); |
1040 | } | |
1041 | ||
7ba81444 MS |
1042 | /* Lookup a typedef or primitive type named NAME, visible in lexical |
1043 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
1044 | suitably defined. */ | |
c906108c SS |
1045 | |
1046 | struct type * | |
e6c014f2 UW |
1047 | lookup_typename (const struct language_defn *language, |
1048 | struct gdbarch *gdbarch, char *name, | |
34eaf542 | 1049 | const struct block *block, int noerr) |
c906108c | 1050 | { |
52f0bd74 AC |
1051 | struct symbol *sym; |
1052 | struct type *tmp; | |
c906108c | 1053 | |
2570f2b7 | 1054 | sym = lookup_symbol (name, block, VAR_DOMAIN, 0); |
c906108c SS |
1055 | if (sym == NULL || SYMBOL_CLASS (sym) != LOC_TYPEDEF) |
1056 | { | |
e6c014f2 | 1057 | tmp = language_lookup_primitive_type_by_name (language, gdbarch, name); |
c906108c SS |
1058 | if (tmp) |
1059 | { | |
c16abbde | 1060 | return tmp; |
c906108c SS |
1061 | } |
1062 | else if (!tmp && noerr) | |
1063 | { | |
c16abbde | 1064 | return NULL; |
c906108c SS |
1065 | } |
1066 | else | |
1067 | { | |
8a3fe4f8 | 1068 | error (_("No type named %s."), name); |
c906108c SS |
1069 | } |
1070 | } | |
1071 | return (SYMBOL_TYPE (sym)); | |
1072 | } | |
1073 | ||
1074 | struct type * | |
e6c014f2 UW |
1075 | lookup_unsigned_typename (const struct language_defn *language, |
1076 | struct gdbarch *gdbarch, char *name) | |
c906108c SS |
1077 | { |
1078 | char *uns = alloca (strlen (name) + 10); | |
1079 | ||
1080 | strcpy (uns, "unsigned "); | |
1081 | strcpy (uns + 9, name); | |
e6c014f2 | 1082 | return lookup_typename (language, gdbarch, uns, (struct block *) NULL, 0); |
c906108c SS |
1083 | } |
1084 | ||
1085 | struct type * | |
e6c014f2 UW |
1086 | lookup_signed_typename (const struct language_defn *language, |
1087 | struct gdbarch *gdbarch, char *name) | |
c906108c SS |
1088 | { |
1089 | struct type *t; | |
1090 | char *uns = alloca (strlen (name) + 8); | |
1091 | ||
1092 | strcpy (uns, "signed "); | |
1093 | strcpy (uns + 7, name); | |
e6c014f2 | 1094 | t = lookup_typename (language, gdbarch, uns, (struct block *) NULL, 1); |
7ba81444 | 1095 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
c906108c SS |
1096 | if (t != NULL) |
1097 | return t; | |
e6c014f2 | 1098 | return lookup_typename (language, gdbarch, name, (struct block *) NULL, 0); |
c906108c SS |
1099 | } |
1100 | ||
1101 | /* Lookup a structure type named "struct NAME", | |
1102 | visible in lexical block BLOCK. */ | |
1103 | ||
1104 | struct type * | |
fba45db2 | 1105 | lookup_struct (char *name, struct block *block) |
c906108c | 1106 | { |
52f0bd74 | 1107 | struct symbol *sym; |
c906108c | 1108 | |
2570f2b7 | 1109 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1110 | |
1111 | if (sym == NULL) | |
1112 | { | |
8a3fe4f8 | 1113 | error (_("No struct type named %s."), name); |
c906108c SS |
1114 | } |
1115 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1116 | { | |
7ba81444 MS |
1117 | error (_("This context has class, union or enum %s, not a struct."), |
1118 | name); | |
c906108c SS |
1119 | } |
1120 | return (SYMBOL_TYPE (sym)); | |
1121 | } | |
1122 | ||
1123 | /* Lookup a union type named "union NAME", | |
1124 | visible in lexical block BLOCK. */ | |
1125 | ||
1126 | struct type * | |
fba45db2 | 1127 | lookup_union (char *name, struct block *block) |
c906108c | 1128 | { |
52f0bd74 | 1129 | struct symbol *sym; |
c5aa993b | 1130 | struct type *t; |
c906108c | 1131 | |
2570f2b7 | 1132 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1133 | |
1134 | if (sym == NULL) | |
8a3fe4f8 | 1135 | error (_("No union type named %s."), name); |
c906108c | 1136 | |
c5aa993b | 1137 | t = SYMBOL_TYPE (sym); |
c906108c SS |
1138 | |
1139 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
c16abbde | 1140 | return t; |
c906108c | 1141 | |
7ba81444 MS |
1142 | /* If we get here, it's not a union. */ |
1143 | error (_("This context has class, struct or enum %s, not a union."), | |
1144 | name); | |
c906108c SS |
1145 | } |
1146 | ||
1147 | ||
1148 | /* Lookup an enum type named "enum NAME", | |
1149 | visible in lexical block BLOCK. */ | |
1150 | ||
1151 | struct type * | |
fba45db2 | 1152 | lookup_enum (char *name, struct block *block) |
c906108c | 1153 | { |
52f0bd74 | 1154 | struct symbol *sym; |
c906108c | 1155 | |
2570f2b7 | 1156 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1157 | if (sym == NULL) |
1158 | { | |
8a3fe4f8 | 1159 | error (_("No enum type named %s."), name); |
c906108c SS |
1160 | } |
1161 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
1162 | { | |
7ba81444 MS |
1163 | error (_("This context has class, struct or union %s, not an enum."), |
1164 | name); | |
c906108c SS |
1165 | } |
1166 | return (SYMBOL_TYPE (sym)); | |
1167 | } | |
1168 | ||
1169 | /* Lookup a template type named "template NAME<TYPE>", | |
1170 | visible in lexical block BLOCK. */ | |
1171 | ||
1172 | struct type * | |
7ba81444 MS |
1173 | lookup_template_type (char *name, struct type *type, |
1174 | struct block *block) | |
c906108c SS |
1175 | { |
1176 | struct symbol *sym; | |
7ba81444 MS |
1177 | char *nam = (char *) |
1178 | alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4); | |
d8734c88 | 1179 | |
c906108c SS |
1180 | strcpy (nam, name); |
1181 | strcat (nam, "<"); | |
0004e5a2 | 1182 | strcat (nam, TYPE_NAME (type)); |
7ba81444 | 1183 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1184 | |
2570f2b7 | 1185 | sym = lookup_symbol (nam, block, VAR_DOMAIN, 0); |
c906108c SS |
1186 | |
1187 | if (sym == NULL) | |
1188 | { | |
8a3fe4f8 | 1189 | error (_("No template type named %s."), name); |
c906108c SS |
1190 | } |
1191 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1192 | { | |
7ba81444 MS |
1193 | error (_("This context has class, union or enum %s, not a struct."), |
1194 | name); | |
c906108c SS |
1195 | } |
1196 | return (SYMBOL_TYPE (sym)); | |
1197 | } | |
1198 | ||
7ba81444 MS |
1199 | /* Given a type TYPE, lookup the type of the component of type named |
1200 | NAME. | |
c906108c | 1201 | |
7ba81444 MS |
1202 | TYPE can be either a struct or union, or a pointer or reference to |
1203 | a struct or union. If it is a pointer or reference, its target | |
1204 | type is automatically used. Thus '.' and '->' are interchangable, | |
1205 | as specified for the definitions of the expression element types | |
1206 | STRUCTOP_STRUCT and STRUCTOP_PTR. | |
c906108c SS |
1207 | |
1208 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
1209 | If NAME is the name of a baseclass type, return that type. */ | |
1210 | ||
1211 | struct type * | |
fba45db2 | 1212 | lookup_struct_elt_type (struct type *type, char *name, int noerr) |
c906108c SS |
1213 | { |
1214 | int i; | |
c92817ce | 1215 | char *typename; |
c906108c SS |
1216 | |
1217 | for (;;) | |
1218 | { | |
1219 | CHECK_TYPEDEF (type); | |
1220 | if (TYPE_CODE (type) != TYPE_CODE_PTR | |
1221 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1222 | break; | |
1223 | type = TYPE_TARGET_TYPE (type); | |
1224 | } | |
1225 | ||
687d6395 MS |
1226 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
1227 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
c906108c | 1228 | { |
c92817ce TT |
1229 | typename = type_to_string (type); |
1230 | make_cleanup (xfree, typename); | |
1231 | error (_("Type %s is not a structure or union type."), typename); | |
c906108c SS |
1232 | } |
1233 | ||
1234 | #if 0 | |
7ba81444 MS |
1235 | /* FIXME: This change put in by Michael seems incorrect for the case |
1236 | where the structure tag name is the same as the member name. | |
1237 | I.E. when doing "ptype bell->bar" for "struct foo { int bar; int | |
1238 | foo; } bell;" Disabled by fnf. */ | |
c906108c SS |
1239 | { |
1240 | char *typename; | |
1241 | ||
1242 | typename = type_name_no_tag (type); | |
762f08a3 | 1243 | if (typename != NULL && strcmp (typename, name) == 0) |
c906108c SS |
1244 | return type; |
1245 | } | |
1246 | #endif | |
1247 | ||
1248 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1249 | { | |
1250 | char *t_field_name = TYPE_FIELD_NAME (type, i); | |
1251 | ||
db577aea | 1252 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c SS |
1253 | { |
1254 | return TYPE_FIELD_TYPE (type, i); | |
1255 | } | |
f5a010c0 PM |
1256 | else if (!t_field_name || *t_field_name == '\0') |
1257 | { | |
d8734c88 MS |
1258 | struct type *subtype |
1259 | = lookup_struct_elt_type (TYPE_FIELD_TYPE (type, i), name, 1); | |
1260 | ||
f5a010c0 PM |
1261 | if (subtype != NULL) |
1262 | return subtype; | |
1263 | } | |
c906108c SS |
1264 | } |
1265 | ||
1266 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1267 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1268 | { | |
1269 | struct type *t; | |
1270 | ||
9733fc94 | 1271 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 1); |
c906108c SS |
1272 | if (t != NULL) |
1273 | { | |
1274 | return t; | |
1275 | } | |
1276 | } | |
1277 | ||
1278 | if (noerr) | |
1279 | { | |
1280 | return NULL; | |
1281 | } | |
c5aa993b | 1282 | |
c92817ce TT |
1283 | typename = type_to_string (type); |
1284 | make_cleanup (xfree, typename); | |
1285 | error (_("Type %s has no component named %s."), typename, name); | |
c906108c SS |
1286 | } |
1287 | ||
81fe8080 DE |
1288 | /* Lookup the vptr basetype/fieldno values for TYPE. |
1289 | If found store vptr_basetype in *BASETYPEP if non-NULL, and return | |
1290 | vptr_fieldno. Also, if found and basetype is from the same objfile, | |
1291 | cache the results. | |
1292 | If not found, return -1 and ignore BASETYPEP. | |
1293 | Callers should be aware that in some cases (for example, | |
c906108c | 1294 | the type or one of its baseclasses is a stub type and we are |
d48cc9dd DJ |
1295 | debugging a .o file, or the compiler uses DWARF-2 and is not GCC), |
1296 | this function will not be able to find the | |
7ba81444 | 1297 | virtual function table pointer, and vptr_fieldno will remain -1 and |
81fe8080 | 1298 | vptr_basetype will remain NULL or incomplete. */ |
c906108c | 1299 | |
81fe8080 DE |
1300 | int |
1301 | get_vptr_fieldno (struct type *type, struct type **basetypep) | |
c906108c SS |
1302 | { |
1303 | CHECK_TYPEDEF (type); | |
1304 | ||
1305 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1306 | { | |
1307 | int i; | |
1308 | ||
7ba81444 MS |
1309 | /* We must start at zero in case the first (and only) baseclass |
1310 | is virtual (and hence we cannot share the table pointer). */ | |
c906108c SS |
1311 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1312 | { | |
81fe8080 DE |
1313 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
1314 | int fieldno; | |
1315 | struct type *basetype; | |
1316 | ||
1317 | fieldno = get_vptr_fieldno (baseclass, &basetype); | |
1318 | if (fieldno >= 0) | |
c906108c | 1319 | { |
81fe8080 DE |
1320 | /* If the type comes from a different objfile we can't cache |
1321 | it, it may have a different lifetime. PR 2384 */ | |
5ef73790 | 1322 | if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype)) |
81fe8080 DE |
1323 | { |
1324 | TYPE_VPTR_FIELDNO (type) = fieldno; | |
1325 | TYPE_VPTR_BASETYPE (type) = basetype; | |
1326 | } | |
1327 | if (basetypep) | |
1328 | *basetypep = basetype; | |
1329 | return fieldno; | |
c906108c SS |
1330 | } |
1331 | } | |
81fe8080 DE |
1332 | |
1333 | /* Not found. */ | |
1334 | return -1; | |
1335 | } | |
1336 | else | |
1337 | { | |
1338 | if (basetypep) | |
1339 | *basetypep = TYPE_VPTR_BASETYPE (type); | |
1340 | return TYPE_VPTR_FIELDNO (type); | |
c906108c SS |
1341 | } |
1342 | } | |
1343 | ||
44e1a9eb DJ |
1344 | static void |
1345 | stub_noname_complaint (void) | |
1346 | { | |
e2e0b3e5 | 1347 | complaint (&symfile_complaints, _("stub type has NULL name")); |
44e1a9eb DJ |
1348 | } |
1349 | ||
c906108c SS |
1350 | /* Added by Bryan Boreham, Kewill, Sun Sep 17 18:07:17 1989. |
1351 | ||
1352 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
1353 | we can find a full definition in some other file. If so, copy this | |
7ba81444 MS |
1354 | definition, so we can use it in future. There used to be a comment |
1355 | (but not any code) that if we don't find a full definition, we'd | |
1356 | set a flag so we don't spend time in the future checking the same | |
1357 | type. That would be a mistake, though--we might load in more | |
1358 | symbols which contain a full definition for the type. | |
c906108c | 1359 | |
7b83ea04 | 1360 | This used to be coded as a macro, but I don't think it is called |
c54eabfa | 1361 | often enough to merit such treatment. |
c906108c | 1362 | |
c54eabfa | 1363 | Find the real type of TYPE. This function returns the real type, |
7ba81444 MS |
1364 | after removing all layers of typedefs and completing opaque or stub |
1365 | types. Completion changes the TYPE argument, but stripping of | |
c54eabfa JK |
1366 | typedefs does not. |
1367 | ||
1368 | If TYPE is a TYPE_CODE_TYPEDEF, its length is (also) set to the length of | |
1369 | the target type instead of zero. However, in the case of TYPE_CODE_TYPEDEF | |
1370 | check_typedef can still return different type than the original TYPE | |
1371 | pointer. */ | |
c906108c SS |
1372 | |
1373 | struct type * | |
a02fd225 | 1374 | check_typedef (struct type *type) |
c906108c SS |
1375 | { |
1376 | struct type *orig_type = type; | |
a02fd225 DJ |
1377 | int is_const, is_volatile; |
1378 | ||
423c0af8 MS |
1379 | gdb_assert (type); |
1380 | ||
c906108c SS |
1381 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
1382 | { | |
1383 | if (!TYPE_TARGET_TYPE (type)) | |
1384 | { | |
c5aa993b | 1385 | char *name; |
c906108c SS |
1386 | struct symbol *sym; |
1387 | ||
1388 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 1389 | reading a symtab. Infinite recursion is one danger. */ |
c906108c SS |
1390 | if (currently_reading_symtab) |
1391 | return type; | |
1392 | ||
1393 | name = type_name_no_tag (type); | |
7ba81444 MS |
1394 | /* FIXME: shouldn't we separately check the TYPE_NAME and |
1395 | the TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or | |
1396 | VAR_DOMAIN as appropriate? (this code was written before | |
1397 | TYPE_NAME and TYPE_TAG_NAME were separate). */ | |
c906108c SS |
1398 | if (name == NULL) |
1399 | { | |
23136709 | 1400 | stub_noname_complaint (); |
c906108c SS |
1401 | return type; |
1402 | } | |
2570f2b7 | 1403 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0); |
c906108c SS |
1404 | if (sym) |
1405 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
7ba81444 | 1406 | else /* TYPE_CODE_UNDEF */ |
e9bb382b | 1407 | TYPE_TARGET_TYPE (type) = alloc_type_arch (get_type_arch (type)); |
c906108c SS |
1408 | } |
1409 | type = TYPE_TARGET_TYPE (type); | |
1410 | } | |
1411 | ||
a02fd225 DJ |
1412 | is_const = TYPE_CONST (type); |
1413 | is_volatile = TYPE_VOLATILE (type); | |
1414 | ||
7ba81444 MS |
1415 | /* If this is a struct/class/union with no fields, then check |
1416 | whether a full definition exists somewhere else. This is for | |
1417 | systems where a type definition with no fields is issued for such | |
1418 | types, instead of identifying them as stub types in the first | |
1419 | place. */ | |
c5aa993b | 1420 | |
7ba81444 MS |
1421 | if (TYPE_IS_OPAQUE (type) |
1422 | && opaque_type_resolution | |
1423 | && !currently_reading_symtab) | |
c906108c | 1424 | { |
c5aa993b JM |
1425 | char *name = type_name_no_tag (type); |
1426 | struct type *newtype; | |
d8734c88 | 1427 | |
c906108c SS |
1428 | if (name == NULL) |
1429 | { | |
23136709 | 1430 | stub_noname_complaint (); |
c906108c SS |
1431 | return type; |
1432 | } | |
1433 | newtype = lookup_transparent_type (name); | |
ad766c0a | 1434 | |
c906108c | 1435 | if (newtype) |
ad766c0a | 1436 | { |
7ba81444 MS |
1437 | /* If the resolved type and the stub are in the same |
1438 | objfile, then replace the stub type with the real deal. | |
1439 | But if they're in separate objfiles, leave the stub | |
1440 | alone; we'll just look up the transparent type every time | |
1441 | we call check_typedef. We can't create pointers between | |
1442 | types allocated to different objfiles, since they may | |
1443 | have different lifetimes. Trying to copy NEWTYPE over to | |
1444 | TYPE's objfile is pointless, too, since you'll have to | |
1445 | move over any other types NEWTYPE refers to, which could | |
1446 | be an unbounded amount of stuff. */ | |
ad766c0a JB |
1447 | if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
1448 | make_cv_type (is_const, is_volatile, newtype, &type); | |
1449 | else | |
1450 | type = newtype; | |
1451 | } | |
c906108c | 1452 | } |
7ba81444 MS |
1453 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
1454 | types. */ | |
74a9bb82 | 1455 | else if (TYPE_STUB (type) && !currently_reading_symtab) |
c906108c | 1456 | { |
c5aa993b | 1457 | char *name = type_name_no_tag (type); |
c906108c | 1458 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
176620f1 | 1459 | TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or VAR_DOMAIN |
7b83ea04 AC |
1460 | as appropriate? (this code was written before TYPE_NAME and |
1461 | TYPE_TAG_NAME were separate). */ | |
c906108c | 1462 | struct symbol *sym; |
d8734c88 | 1463 | |
c906108c SS |
1464 | if (name == NULL) |
1465 | { | |
23136709 | 1466 | stub_noname_complaint (); |
c906108c SS |
1467 | return type; |
1468 | } | |
2570f2b7 | 1469 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0); |
c906108c | 1470 | if (sym) |
c26f2453 JB |
1471 | { |
1472 | /* Same as above for opaque types, we can replace the stub | |
1473 | with the complete type only if they are int the same | |
1474 | objfile. */ | |
1475 | if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type)) | |
7ba81444 MS |
1476 | make_cv_type (is_const, is_volatile, |
1477 | SYMBOL_TYPE (sym), &type); | |
c26f2453 JB |
1478 | else |
1479 | type = SYMBOL_TYPE (sym); | |
1480 | } | |
c906108c SS |
1481 | } |
1482 | ||
74a9bb82 | 1483 | if (TYPE_TARGET_STUB (type)) |
c906108c SS |
1484 | { |
1485 | struct type *range_type; | |
1486 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1487 | ||
74a9bb82 | 1488 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
c5aa993b | 1489 | { |
7ba81444 | 1490 | /* Empty. */ |
c5aa993b | 1491 | } |
c906108c SS |
1492 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY |
1493 | && TYPE_NFIELDS (type) == 1 | |
262452ec | 1494 | && (TYPE_CODE (range_type = TYPE_INDEX_TYPE (type)) |
c906108c SS |
1495 | == TYPE_CODE_RANGE)) |
1496 | { | |
1497 | /* Now recompute the length of the array type, based on its | |
ab0d6e0d JB |
1498 | number of elements and the target type's length. |
1499 | Watch out for Ada null Ada arrays where the high bound | |
43bbcdc2 PH |
1500 | is smaller than the low bound. */ |
1501 | const LONGEST low_bound = TYPE_LOW_BOUND (range_type); | |
1502 | const LONGEST high_bound = TYPE_HIGH_BOUND (range_type); | |
1503 | ULONGEST len; | |
1504 | ||
ab0d6e0d | 1505 | if (high_bound < low_bound) |
43bbcdc2 | 1506 | len = 0; |
d8734c88 MS |
1507 | else |
1508 | { | |
1509 | /* For now, we conservatively take the array length to be 0 | |
1510 | if its length exceeds UINT_MAX. The code below assumes | |
1511 | that for x < 0, (ULONGEST) x == -x + ULONGEST_MAX + 1, | |
1512 | which is technically not guaranteed by C, but is usually true | |
1513 | (because it would be true if x were unsigned with its | |
1514 | high-order bit on). It uses the fact that | |
1515 | high_bound-low_bound is always representable in | |
1516 | ULONGEST and that if high_bound-low_bound+1 overflows, | |
1517 | it overflows to 0. We must change these tests if we | |
1518 | decide to increase the representation of TYPE_LENGTH | |
1519 | from unsigned int to ULONGEST. */ | |
1520 | ULONGEST ulow = low_bound, uhigh = high_bound; | |
1521 | ULONGEST tlen = TYPE_LENGTH (target_type); | |
1522 | ||
1523 | len = tlen * (uhigh - ulow + 1); | |
1524 | if (tlen == 0 || (len / tlen - 1 + ulow) != uhigh | |
1525 | || len > UINT_MAX) | |
1526 | len = 0; | |
1527 | } | |
43bbcdc2 | 1528 | TYPE_LENGTH (type) = len; |
876cecd0 | 1529 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
1530 | } |
1531 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) | |
1532 | { | |
1533 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
876cecd0 | 1534 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
1535 | } |
1536 | } | |
7ba81444 | 1537 | /* Cache TYPE_LENGTH for future use. */ |
c906108c SS |
1538 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
1539 | return type; | |
1540 | } | |
1541 | ||
7ba81444 | 1542 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
48319d1f | 1543 | occurs, silently return a void type. */ |
c91ecb25 | 1544 | |
b9362cc7 | 1545 | static struct type * |
48319d1f | 1546 | safe_parse_type (struct gdbarch *gdbarch, char *p, int length) |
c91ecb25 ND |
1547 | { |
1548 | struct ui_file *saved_gdb_stderr; | |
1549 | struct type *type; | |
1550 | ||
7ba81444 | 1551 | /* Suppress error messages. */ |
c91ecb25 ND |
1552 | saved_gdb_stderr = gdb_stderr; |
1553 | gdb_stderr = ui_file_new (); | |
1554 | ||
7ba81444 | 1555 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
c91ecb25 | 1556 | if (!gdb_parse_and_eval_type (p, length, &type)) |
48319d1f | 1557 | type = builtin_type (gdbarch)->builtin_void; |
c91ecb25 | 1558 | |
7ba81444 | 1559 | /* Stop suppressing error messages. */ |
c91ecb25 ND |
1560 | ui_file_delete (gdb_stderr); |
1561 | gdb_stderr = saved_gdb_stderr; | |
1562 | ||
1563 | return type; | |
1564 | } | |
1565 | ||
c906108c SS |
1566 | /* Ugly hack to convert method stubs into method types. |
1567 | ||
7ba81444 MS |
1568 | He ain't kiddin'. This demangles the name of the method into a |
1569 | string including argument types, parses out each argument type, | |
1570 | generates a string casting a zero to that type, evaluates the | |
1571 | string, and stuffs the resulting type into an argtype vector!!! | |
1572 | Then it knows the type of the whole function (including argument | |
1573 | types for overloading), which info used to be in the stab's but was | |
1574 | removed to hack back the space required for them. */ | |
c906108c | 1575 | |
de17c821 | 1576 | static void |
fba45db2 | 1577 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c | 1578 | { |
50810684 | 1579 | struct gdbarch *gdbarch = get_type_arch (type); |
c906108c SS |
1580 | struct fn_field *f; |
1581 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
1582 | char *demangled_name = cplus_demangle (mangled_name, | |
1583 | DMGL_PARAMS | DMGL_ANSI); | |
1584 | char *argtypetext, *p; | |
1585 | int depth = 0, argcount = 1; | |
ad2f7632 | 1586 | struct field *argtypes; |
c906108c SS |
1587 | struct type *mtype; |
1588 | ||
1589 | /* Make sure we got back a function string that we can use. */ | |
1590 | if (demangled_name) | |
1591 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
1592 | else |
1593 | p = NULL; | |
c906108c SS |
1594 | |
1595 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
1596 | error (_("Internal: Cannot demangle mangled name `%s'."), |
1597 | mangled_name); | |
c906108c SS |
1598 | |
1599 | /* Now, read in the parameters that define this type. */ | |
1600 | p += 1; | |
1601 | argtypetext = p; | |
1602 | while (*p) | |
1603 | { | |
070ad9f0 | 1604 | if (*p == '(' || *p == '<') |
c906108c SS |
1605 | { |
1606 | depth += 1; | |
1607 | } | |
070ad9f0 | 1608 | else if (*p == ')' || *p == '>') |
c906108c SS |
1609 | { |
1610 | depth -= 1; | |
1611 | } | |
1612 | else if (*p == ',' && depth == 0) | |
1613 | { | |
1614 | argcount += 1; | |
1615 | } | |
1616 | ||
1617 | p += 1; | |
1618 | } | |
1619 | ||
ad2f7632 DJ |
1620 | /* If we read one argument and it was ``void'', don't count it. */ |
1621 | if (strncmp (argtypetext, "(void)", 6) == 0) | |
1622 | argcount -= 1; | |
c906108c | 1623 | |
ad2f7632 DJ |
1624 | /* We need one extra slot, for the THIS pointer. */ |
1625 | ||
1626 | argtypes = (struct field *) | |
1627 | TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); | |
c906108c | 1628 | p = argtypetext; |
4a1970e4 DJ |
1629 | |
1630 | /* Add THIS pointer for non-static methods. */ | |
1631 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
1632 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
1633 | argcount = 0; | |
1634 | else | |
1635 | { | |
ad2f7632 | 1636 | argtypes[0].type = lookup_pointer_type (type); |
4a1970e4 DJ |
1637 | argcount = 1; |
1638 | } | |
c906108c | 1639 | |
c5aa993b | 1640 | if (*p != ')') /* () means no args, skip while */ |
c906108c SS |
1641 | { |
1642 | depth = 0; | |
1643 | while (*p) | |
1644 | { | |
1645 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
1646 | { | |
ad2f7632 DJ |
1647 | /* Avoid parsing of ellipsis, they will be handled below. |
1648 | Also avoid ``void'' as above. */ | |
1649 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 | |
1650 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 1651 | { |
ad2f7632 | 1652 | argtypes[argcount].type = |
48319d1f | 1653 | safe_parse_type (gdbarch, argtypetext, p - argtypetext); |
c906108c SS |
1654 | argcount += 1; |
1655 | } | |
1656 | argtypetext = p + 1; | |
1657 | } | |
1658 | ||
070ad9f0 | 1659 | if (*p == '(' || *p == '<') |
c906108c SS |
1660 | { |
1661 | depth += 1; | |
1662 | } | |
070ad9f0 | 1663 | else if (*p == ')' || *p == '>') |
c906108c SS |
1664 | { |
1665 | depth -= 1; | |
1666 | } | |
1667 | ||
1668 | p += 1; | |
1669 | } | |
1670 | } | |
1671 | ||
c906108c SS |
1672 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
1673 | ||
1674 | /* Now update the old "stub" type into a real type. */ | |
1675 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
1676 | TYPE_DOMAIN_TYPE (mtype) = type; | |
ad2f7632 DJ |
1677 | TYPE_FIELDS (mtype) = argtypes; |
1678 | TYPE_NFIELDS (mtype) = argcount; | |
876cecd0 | 1679 | TYPE_STUB (mtype) = 0; |
c906108c | 1680 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
ad2f7632 | 1681 | if (p[-2] == '.') |
876cecd0 | 1682 | TYPE_VARARGS (mtype) = 1; |
ad2f7632 DJ |
1683 | |
1684 | xfree (demangled_name); | |
c906108c SS |
1685 | } |
1686 | ||
7ba81444 MS |
1687 | /* This is the external interface to check_stub_method, above. This |
1688 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
1689 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
1690 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
1691 | correct. | |
de17c821 DJ |
1692 | |
1693 | This function unfortunately can not die until stabs do. */ | |
1694 | ||
1695 | void | |
1696 | check_stub_method_group (struct type *type, int method_id) | |
1697 | { | |
1698 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
1699 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
f710f4fc | 1700 | int j, found_stub = 0; |
de17c821 DJ |
1701 | |
1702 | for (j = 0; j < len; j++) | |
1703 | if (TYPE_FN_FIELD_STUB (f, j)) | |
1704 | { | |
1705 | found_stub = 1; | |
1706 | check_stub_method (type, method_id, j); | |
1707 | } | |
1708 | ||
7ba81444 MS |
1709 | /* GNU v3 methods with incorrect names were corrected when we read |
1710 | in type information, because it was cheaper to do it then. The | |
1711 | only GNU v2 methods with incorrect method names are operators and | |
1712 | destructors; destructors were also corrected when we read in type | |
1713 | information. | |
de17c821 DJ |
1714 | |
1715 | Therefore the only thing we need to handle here are v2 operator | |
1716 | names. */ | |
1717 | if (found_stub && strncmp (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z", 2) != 0) | |
1718 | { | |
1719 | int ret; | |
1720 | char dem_opname[256]; | |
1721 | ||
7ba81444 MS |
1722 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
1723 | method_id), | |
de17c821 DJ |
1724 | dem_opname, DMGL_ANSI); |
1725 | if (!ret) | |
7ba81444 MS |
1726 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
1727 | method_id), | |
de17c821 DJ |
1728 | dem_opname, 0); |
1729 | if (ret) | |
1730 | TYPE_FN_FIELDLIST_NAME (type, method_id) = xstrdup (dem_opname); | |
1731 | } | |
1732 | } | |
1733 | ||
9655fd1a JK |
1734 | /* Ensure it is in .rodata (if available) by workarounding GCC PR 44690. */ |
1735 | const struct cplus_struct_type cplus_struct_default = { }; | |
c906108c SS |
1736 | |
1737 | void | |
fba45db2 | 1738 | allocate_cplus_struct_type (struct type *type) |
c906108c | 1739 | { |
b4ba55a1 JB |
1740 | if (HAVE_CPLUS_STRUCT (type)) |
1741 | /* Structure was already allocated. Nothing more to do. */ | |
1742 | return; | |
1743 | ||
1744 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF; | |
1745 | TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
1746 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
1747 | *(TYPE_RAW_CPLUS_SPECIFIC (type)) = cplus_struct_default; | |
c906108c SS |
1748 | } |
1749 | ||
b4ba55a1 JB |
1750 | const struct gnat_aux_type gnat_aux_default = |
1751 | { NULL }; | |
1752 | ||
1753 | /* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF, | |
1754 | and allocate the associated gnat-specific data. The gnat-specific | |
1755 | data is also initialized to gnat_aux_default. */ | |
1756 | void | |
1757 | allocate_gnat_aux_type (struct type *type) | |
1758 | { | |
1759 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF; | |
1760 | TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) | |
1761 | TYPE_ALLOC (type, sizeof (struct gnat_aux_type)); | |
1762 | *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default; | |
1763 | } | |
1764 | ||
1765 | ||
c906108c SS |
1766 | /* Helper function to initialize the standard scalar types. |
1767 | ||
e9bb382b UW |
1768 | If NAME is non-NULL, then we make a copy of the string pointed |
1769 | to by name in the objfile_obstack for that objfile, and initialize | |
1770 | the type name to that copy. There are places (mipsread.c in particular), | |
1771 | where init_type is called with a NULL value for NAME). */ | |
c906108c SS |
1772 | |
1773 | struct type * | |
7ba81444 MS |
1774 | init_type (enum type_code code, int length, int flags, |
1775 | char *name, struct objfile *objfile) | |
c906108c | 1776 | { |
52f0bd74 | 1777 | struct type *type; |
c906108c SS |
1778 | |
1779 | type = alloc_type (objfile); | |
1780 | TYPE_CODE (type) = code; | |
1781 | TYPE_LENGTH (type) = length; | |
876cecd0 TT |
1782 | |
1783 | gdb_assert (!(flags & (TYPE_FLAG_MIN - 1))); | |
1784 | if (flags & TYPE_FLAG_UNSIGNED) | |
1785 | TYPE_UNSIGNED (type) = 1; | |
1786 | if (flags & TYPE_FLAG_NOSIGN) | |
1787 | TYPE_NOSIGN (type) = 1; | |
1788 | if (flags & TYPE_FLAG_STUB) | |
1789 | TYPE_STUB (type) = 1; | |
1790 | if (flags & TYPE_FLAG_TARGET_STUB) | |
1791 | TYPE_TARGET_STUB (type) = 1; | |
1792 | if (flags & TYPE_FLAG_STATIC) | |
1793 | TYPE_STATIC (type) = 1; | |
1794 | if (flags & TYPE_FLAG_PROTOTYPED) | |
1795 | TYPE_PROTOTYPED (type) = 1; | |
1796 | if (flags & TYPE_FLAG_INCOMPLETE) | |
1797 | TYPE_INCOMPLETE (type) = 1; | |
1798 | if (flags & TYPE_FLAG_VARARGS) | |
1799 | TYPE_VARARGS (type) = 1; | |
1800 | if (flags & TYPE_FLAG_VECTOR) | |
1801 | TYPE_VECTOR (type) = 1; | |
1802 | if (flags & TYPE_FLAG_STUB_SUPPORTED) | |
1803 | TYPE_STUB_SUPPORTED (type) = 1; | |
1804 | if (flags & TYPE_FLAG_NOTTEXT) | |
1805 | TYPE_NOTTEXT (type) = 1; | |
1806 | if (flags & TYPE_FLAG_FIXED_INSTANCE) | |
1807 | TYPE_FIXED_INSTANCE (type) = 1; | |
1808 | ||
e9bb382b UW |
1809 | if (name) |
1810 | TYPE_NAME (type) = obsavestring (name, strlen (name), | |
1811 | &objfile->objfile_obstack); | |
c906108c SS |
1812 | |
1813 | /* C++ fancies. */ | |
1814 | ||
973ccf8b | 1815 | if (name && strcmp (name, "char") == 0) |
876cecd0 | 1816 | TYPE_NOSIGN (type) = 1; |
973ccf8b | 1817 | |
b4ba55a1 | 1818 | switch (code) |
c906108c | 1819 | { |
b4ba55a1 JB |
1820 | case TYPE_CODE_STRUCT: |
1821 | case TYPE_CODE_UNION: | |
1822 | case TYPE_CODE_NAMESPACE: | |
1823 | INIT_CPLUS_SPECIFIC (type); | |
1824 | break; | |
1825 | case TYPE_CODE_FLT: | |
1826 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT; | |
1827 | break; | |
1828 | case TYPE_CODE_FUNC: | |
1829 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CALLING_CONVENTION; | |
1830 | break; | |
c906108c | 1831 | } |
c16abbde | 1832 | return type; |
c906108c SS |
1833 | } |
1834 | ||
c906108c | 1835 | int |
fba45db2 | 1836 | can_dereference (struct type *t) |
c906108c | 1837 | { |
7ba81444 MS |
1838 | /* FIXME: Should we return true for references as well as |
1839 | pointers? */ | |
c906108c SS |
1840 | CHECK_TYPEDEF (t); |
1841 | return | |
1842 | (t != NULL | |
1843 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
1844 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
1845 | } | |
1846 | ||
adf40b2e | 1847 | int |
fba45db2 | 1848 | is_integral_type (struct type *t) |
adf40b2e JM |
1849 | { |
1850 | CHECK_TYPEDEF (t); | |
1851 | return | |
1852 | ((t != NULL) | |
d4f3574e SS |
1853 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
1854 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
4f2aea11 | 1855 | || (TYPE_CODE (t) == TYPE_CODE_FLAGS) |
d4f3574e SS |
1856 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) |
1857 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
1858 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
1859 | } |
1860 | ||
4e8f195d TT |
1861 | /* A helper function which returns true if types A and B represent the |
1862 | "same" class type. This is true if the types have the same main | |
1863 | type, or the same name. */ | |
1864 | ||
1865 | int | |
1866 | class_types_same_p (const struct type *a, const struct type *b) | |
1867 | { | |
1868 | return (TYPE_MAIN_TYPE (a) == TYPE_MAIN_TYPE (b) | |
1869 | || (TYPE_NAME (a) && TYPE_NAME (b) | |
1870 | && !strcmp (TYPE_NAME (a), TYPE_NAME (b)))); | |
1871 | } | |
1872 | ||
7b83ea04 | 1873 | /* Check whether BASE is an ancestor or base class or DCLASS |
c906108c SS |
1874 | Return 1 if so, and 0 if not. |
1875 | Note: callers may want to check for identity of the types before | |
1876 | calling this function -- identical types are considered to satisfy | |
7ba81444 | 1877 | the ancestor relationship even if they're identical. */ |
c906108c SS |
1878 | |
1879 | int | |
fba45db2 | 1880 | is_ancestor (struct type *base, struct type *dclass) |
c906108c SS |
1881 | { |
1882 | int i; | |
c5aa993b | 1883 | |
c906108c SS |
1884 | CHECK_TYPEDEF (base); |
1885 | CHECK_TYPEDEF (dclass); | |
1886 | ||
4e8f195d | 1887 | if (class_types_same_p (base, dclass)) |
6b1ba9a0 | 1888 | return 1; |
c906108c SS |
1889 | |
1890 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
4e8f195d TT |
1891 | { |
1892 | if (is_ancestor (base, TYPE_BASECLASS (dclass, i))) | |
1893 | return 1; | |
1894 | } | |
c906108c SS |
1895 | |
1896 | return 0; | |
1897 | } | |
4e8f195d TT |
1898 | |
1899 | /* Like is_ancestor, but only returns true when BASE is a public | |
1900 | ancestor of DCLASS. */ | |
1901 | ||
1902 | int | |
1903 | is_public_ancestor (struct type *base, struct type *dclass) | |
1904 | { | |
1905 | int i; | |
1906 | ||
1907 | CHECK_TYPEDEF (base); | |
1908 | CHECK_TYPEDEF (dclass); | |
1909 | ||
1910 | if (class_types_same_p (base, dclass)) | |
1911 | return 1; | |
1912 | ||
1913 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); ++i) | |
1914 | { | |
1915 | if (! BASETYPE_VIA_PUBLIC (dclass, i)) | |
1916 | continue; | |
1917 | if (is_public_ancestor (base, TYPE_BASECLASS (dclass, i))) | |
1918 | return 1; | |
1919 | } | |
1920 | ||
1921 | return 0; | |
1922 | } | |
1923 | ||
1924 | /* A helper function for is_unique_ancestor. */ | |
1925 | ||
1926 | static int | |
1927 | is_unique_ancestor_worker (struct type *base, struct type *dclass, | |
1928 | int *offset, | |
1929 | const bfd_byte *contents, CORE_ADDR address) | |
1930 | { | |
1931 | int i, count = 0; | |
1932 | ||
1933 | CHECK_TYPEDEF (base); | |
1934 | CHECK_TYPEDEF (dclass); | |
1935 | ||
1936 | for (i = 0; i < TYPE_N_BASECLASSES (dclass) && count < 2; ++i) | |
1937 | { | |
1938 | struct type *iter = check_typedef (TYPE_BASECLASS (dclass, i)); | |
1939 | int this_offset = baseclass_offset (dclass, i, contents, address); | |
1940 | ||
1941 | if (this_offset == -1) | |
1942 | error (_("virtual baseclass botch")); | |
1943 | ||
1944 | if (class_types_same_p (base, iter)) | |
1945 | { | |
1946 | /* If this is the first subclass, set *OFFSET and set count | |
1947 | to 1. Otherwise, if this is at the same offset as | |
1948 | previous instances, do nothing. Otherwise, increment | |
1949 | count. */ | |
1950 | if (*offset == -1) | |
1951 | { | |
1952 | *offset = this_offset; | |
1953 | count = 1; | |
1954 | } | |
1955 | else if (this_offset == *offset) | |
1956 | { | |
1957 | /* Nothing. */ | |
1958 | } | |
1959 | else | |
1960 | ++count; | |
1961 | } | |
1962 | else | |
1963 | count += is_unique_ancestor_worker (base, iter, offset, | |
1964 | contents + this_offset, | |
1965 | address + this_offset); | |
1966 | } | |
1967 | ||
1968 | return count; | |
1969 | } | |
1970 | ||
1971 | /* Like is_ancestor, but only returns true if BASE is a unique base | |
1972 | class of the type of VAL. */ | |
1973 | ||
1974 | int | |
1975 | is_unique_ancestor (struct type *base, struct value *val) | |
1976 | { | |
1977 | int offset = -1; | |
1978 | ||
1979 | return is_unique_ancestor_worker (base, value_type (val), &offset, | |
1980 | value_contents (val), | |
1981 | value_address (val)) == 1; | |
1982 | } | |
1983 | ||
c906108c SS |
1984 | \f |
1985 | ||
c5aa993b | 1986 | |
c906108c SS |
1987 | /* Functions for overload resolution begin here */ |
1988 | ||
1989 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
1990 | 0 => A and B are identical |
1991 | 1 => A and B are incomparable | |
1992 | 2 => A is better than B | |
1993 | 3 => A is worse than B */ | |
c906108c SS |
1994 | |
1995 | int | |
fba45db2 | 1996 | compare_badness (struct badness_vector *a, struct badness_vector *b) |
c906108c SS |
1997 | { |
1998 | int i; | |
1999 | int tmp; | |
c5aa993b JM |
2000 | short found_pos = 0; /* any positives in c? */ |
2001 | short found_neg = 0; /* any negatives in c? */ | |
2002 | ||
2003 | /* differing lengths => incomparable */ | |
c906108c SS |
2004 | if (a->length != b->length) |
2005 | return 1; | |
2006 | ||
c5aa993b JM |
2007 | /* Subtract b from a */ |
2008 | for (i = 0; i < a->length; i++) | |
c906108c SS |
2009 | { |
2010 | tmp = a->rank[i] - b->rank[i]; | |
2011 | if (tmp > 0) | |
c5aa993b | 2012 | found_pos = 1; |
c906108c | 2013 | else if (tmp < 0) |
c5aa993b | 2014 | found_neg = 1; |
c906108c SS |
2015 | } |
2016 | ||
2017 | if (found_pos) | |
2018 | { | |
2019 | if (found_neg) | |
c5aa993b | 2020 | return 1; /* incomparable */ |
c906108c | 2021 | else |
c5aa993b | 2022 | return 3; /* A > B */ |
c906108c | 2023 | } |
c5aa993b JM |
2024 | else |
2025 | /* no positives */ | |
c906108c SS |
2026 | { |
2027 | if (found_neg) | |
c5aa993b | 2028 | return 2; /* A < B */ |
c906108c | 2029 | else |
c5aa993b | 2030 | return 0; /* A == B */ |
c906108c SS |
2031 | } |
2032 | } | |
2033 | ||
7ba81444 MS |
2034 | /* Rank a function by comparing its parameter types (PARMS, length |
2035 | NPARMS), to the types of an argument list (ARGS, length NARGS). | |
2036 | Return a pointer to a badness vector. This has NARGS + 1 | |
2037 | entries. */ | |
c906108c SS |
2038 | |
2039 | struct badness_vector * | |
7ba81444 MS |
2040 | rank_function (struct type **parms, int nparms, |
2041 | struct type **args, int nargs) | |
c906108c SS |
2042 | { |
2043 | int i; | |
c5aa993b | 2044 | struct badness_vector *bv; |
c906108c SS |
2045 | int min_len = nparms < nargs ? nparms : nargs; |
2046 | ||
2047 | bv = xmalloc (sizeof (struct badness_vector)); | |
c5aa993b | 2048 | bv->length = nargs + 1; /* add 1 for the length-match rank */ |
c906108c SS |
2049 | bv->rank = xmalloc ((nargs + 1) * sizeof (int)); |
2050 | ||
2051 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 2052 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 2053 | |
c906108c | 2054 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
2055 | arguments and ellipsis parameter lists, we should consider those |
2056 | and rank the length-match more finely. */ | |
c906108c SS |
2057 | |
2058 | LENGTH_MATCH (bv) = (nargs != nparms) ? LENGTH_MISMATCH_BADNESS : 0; | |
2059 | ||
2060 | /* Now rank all the parameters of the candidate function */ | |
74cc24b0 DB |
2061 | for (i = 1; i <= min_len; i++) |
2062 | bv->rank[i] = rank_one_type (parms[i-1], args[i-1]); | |
c906108c | 2063 | |
c5aa993b JM |
2064 | /* If more arguments than parameters, add dummy entries */ |
2065 | for (i = min_len + 1; i <= nargs; i++) | |
c906108c SS |
2066 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
2067 | ||
2068 | return bv; | |
2069 | } | |
2070 | ||
973ccf8b DJ |
2071 | /* Compare the names of two integer types, assuming that any sign |
2072 | qualifiers have been checked already. We do it this way because | |
2073 | there may be an "int" in the name of one of the types. */ | |
2074 | ||
2075 | static int | |
2076 | integer_types_same_name_p (const char *first, const char *second) | |
2077 | { | |
2078 | int first_p, second_p; | |
2079 | ||
7ba81444 MS |
2080 | /* If both are shorts, return 1; if neither is a short, keep |
2081 | checking. */ | |
973ccf8b DJ |
2082 | first_p = (strstr (first, "short") != NULL); |
2083 | second_p = (strstr (second, "short") != NULL); | |
2084 | if (first_p && second_p) | |
2085 | return 1; | |
2086 | if (first_p || second_p) | |
2087 | return 0; | |
2088 | ||
2089 | /* Likewise for long. */ | |
2090 | first_p = (strstr (first, "long") != NULL); | |
2091 | second_p = (strstr (second, "long") != NULL); | |
2092 | if (first_p && second_p) | |
2093 | return 1; | |
2094 | if (first_p || second_p) | |
2095 | return 0; | |
2096 | ||
2097 | /* Likewise for char. */ | |
2098 | first_p = (strstr (first, "char") != NULL); | |
2099 | second_p = (strstr (second, "char") != NULL); | |
2100 | if (first_p && second_p) | |
2101 | return 1; | |
2102 | if (first_p || second_p) | |
2103 | return 0; | |
2104 | ||
2105 | /* They must both be ints. */ | |
2106 | return 1; | |
2107 | } | |
2108 | ||
c906108c SS |
2109 | /* Compare one type (PARM) for compatibility with another (ARG). |
2110 | * PARM is intended to be the parameter type of a function; and | |
2111 | * ARG is the supplied argument's type. This function tests if | |
2112 | * the latter can be converted to the former. | |
2113 | * | |
2114 | * Return 0 if they are identical types; | |
2115 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 MS |
2116 | * PARM is to ARG. The higher the return value, the worse the match. |
2117 | * Generally the "bad" conversions are all uniformly assigned a 100. */ | |
c906108c SS |
2118 | |
2119 | int | |
fba45db2 | 2120 | rank_one_type (struct type *parm, struct type *arg) |
c906108c | 2121 | { |
7ba81444 | 2122 | /* Identical type pointers. */ |
c906108c | 2123 | /* However, this still doesn't catch all cases of same type for arg |
7ba81444 MS |
2124 | and param. The reason is that builtin types are different from |
2125 | the same ones constructed from the object. */ | |
c906108c SS |
2126 | if (parm == arg) |
2127 | return 0; | |
2128 | ||
2129 | /* Resolve typedefs */ | |
2130 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
2131 | parm = check_typedef (parm); | |
2132 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
2133 | arg = check_typedef (arg); | |
2134 | ||
070ad9f0 | 2135 | /* |
7ba81444 MS |
2136 | Well, damnit, if the names are exactly the same, I'll say they |
2137 | are exactly the same. This happens when we generate method | |
2138 | stubs. The types won't point to the same address, but they | |
070ad9f0 DB |
2139 | really are the same. |
2140 | */ | |
2141 | ||
687d6395 MS |
2142 | if (TYPE_NAME (parm) && TYPE_NAME (arg) |
2143 | && !strcmp (TYPE_NAME (parm), TYPE_NAME (arg))) | |
7ba81444 | 2144 | return 0; |
070ad9f0 | 2145 | |
7ba81444 | 2146 | /* Check if identical after resolving typedefs. */ |
c906108c SS |
2147 | if (parm == arg) |
2148 | return 0; | |
2149 | ||
db577aea | 2150 | /* See through references, since we can almost make non-references |
7ba81444 | 2151 | references. */ |
db577aea | 2152 | if (TYPE_CODE (arg) == TYPE_CODE_REF) |
6b1ba9a0 | 2153 | return (rank_one_type (parm, TYPE_TARGET_TYPE (arg)) |
db577aea AC |
2154 | + REFERENCE_CONVERSION_BADNESS); |
2155 | if (TYPE_CODE (parm) == TYPE_CODE_REF) | |
6b1ba9a0 | 2156 | return (rank_one_type (TYPE_TARGET_TYPE (parm), arg) |
db577aea | 2157 | + REFERENCE_CONVERSION_BADNESS); |
5d161b24 | 2158 | if (overload_debug) |
7ba81444 MS |
2159 | /* Debugging only. */ |
2160 | fprintf_filtered (gdb_stderr, | |
2161 | "------ Arg is %s [%d], parm is %s [%d]\n", | |
2162 | TYPE_NAME (arg), TYPE_CODE (arg), | |
2163 | TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c SS |
2164 | |
2165 | /* x -> y means arg of type x being supplied for parameter of type y */ | |
2166 | ||
2167 | switch (TYPE_CODE (parm)) | |
2168 | { | |
c5aa993b JM |
2169 | case TYPE_CODE_PTR: |
2170 | switch (TYPE_CODE (arg)) | |
2171 | { | |
2172 | case TYPE_CODE_PTR: | |
66c53f2b KS |
2173 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID |
2174 | && TYPE_CODE (TYPE_TARGET_TYPE (arg)) != TYPE_CODE_VOID) | |
c5aa993b JM |
2175 | return VOID_PTR_CONVERSION_BADNESS; |
2176 | else | |
7ba81444 MS |
2177 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
2178 | TYPE_TARGET_TYPE (arg)); | |
c5aa993b | 2179 | case TYPE_CODE_ARRAY: |
7ba81444 MS |
2180 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
2181 | TYPE_TARGET_TYPE (arg)); | |
c5aa993b JM |
2182 | case TYPE_CODE_FUNC: |
2183 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg); | |
2184 | case TYPE_CODE_INT: | |
2185 | case TYPE_CODE_ENUM: | |
4f2aea11 | 2186 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
2187 | case TYPE_CODE_CHAR: |
2188 | case TYPE_CODE_RANGE: | |
2189 | case TYPE_CODE_BOOL: | |
2190 | return POINTER_CONVERSION_BADNESS; | |
2191 | default: | |
2192 | return INCOMPATIBLE_TYPE_BADNESS; | |
2193 | } | |
2194 | case TYPE_CODE_ARRAY: | |
2195 | switch (TYPE_CODE (arg)) | |
2196 | { | |
2197 | case TYPE_CODE_PTR: | |
2198 | case TYPE_CODE_ARRAY: | |
7ba81444 MS |
2199 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
2200 | TYPE_TARGET_TYPE (arg)); | |
c5aa993b JM |
2201 | default: |
2202 | return INCOMPATIBLE_TYPE_BADNESS; | |
2203 | } | |
2204 | case TYPE_CODE_FUNC: | |
2205 | switch (TYPE_CODE (arg)) | |
2206 | { | |
2207 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
2208 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg)); | |
2209 | default: | |
2210 | return INCOMPATIBLE_TYPE_BADNESS; | |
2211 | } | |
2212 | case TYPE_CODE_INT: | |
2213 | switch (TYPE_CODE (arg)) | |
2214 | { | |
2215 | case TYPE_CODE_INT: | |
2216 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2217 | { | |
2218 | /* Deal with signed, unsigned, and plain chars and | |
7ba81444 | 2219 | signed and unsigned ints. */ |
c5aa993b JM |
2220 | if (TYPE_NOSIGN (parm)) |
2221 | { | |
2222 | /* This case only for character types */ | |
7ba81444 MS |
2223 | if (TYPE_NOSIGN (arg)) |
2224 | return 0; /* plain char -> plain char */ | |
2225 | else /* signed/unsigned char -> plain char */ | |
2226 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
2227 | } |
2228 | else if (TYPE_UNSIGNED (parm)) | |
2229 | { | |
2230 | if (TYPE_UNSIGNED (arg)) | |
2231 | { | |
7ba81444 MS |
2232 | /* unsigned int -> unsigned int, or |
2233 | unsigned long -> unsigned long */ | |
2234 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
2235 | TYPE_NAME (arg))) | |
973ccf8b | 2236 | return 0; |
7ba81444 MS |
2237 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
2238 | "int") | |
2239 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2240 | "long")) | |
c5aa993b JM |
2241 | return INTEGER_PROMOTION_BADNESS; /* unsigned int -> unsigned long */ |
2242 | else | |
1c5cb38e | 2243 | return INTEGER_CONVERSION_BADNESS; /* unsigned long -> unsigned int */ |
c5aa993b JM |
2244 | } |
2245 | else | |
2246 | { | |
7ba81444 MS |
2247 | if (integer_types_same_name_p (TYPE_NAME (arg), |
2248 | "long") | |
2249 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2250 | "int")) | |
1c5cb38e | 2251 | return INTEGER_CONVERSION_BADNESS; /* signed long -> unsigned int */ |
c5aa993b JM |
2252 | else |
2253 | return INTEGER_CONVERSION_BADNESS; /* signed int/long -> unsigned int/long */ | |
2254 | } | |
2255 | } | |
2256 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2257 | { | |
7ba81444 MS |
2258 | if (integer_types_same_name_p (TYPE_NAME (parm), |
2259 | TYPE_NAME (arg))) | |
c5aa993b | 2260 | return 0; |
7ba81444 MS |
2261 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
2262 | "int") | |
2263 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2264 | "long")) | |
c5aa993b JM |
2265 | return INTEGER_PROMOTION_BADNESS; |
2266 | else | |
1c5cb38e | 2267 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2268 | } |
2269 | else | |
1c5cb38e | 2270 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2271 | } |
2272 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2273 | return INTEGER_PROMOTION_BADNESS; | |
2274 | else | |
1c5cb38e | 2275 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b | 2276 | case TYPE_CODE_ENUM: |
4f2aea11 | 2277 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
2278 | case TYPE_CODE_CHAR: |
2279 | case TYPE_CODE_RANGE: | |
2280 | case TYPE_CODE_BOOL: | |
2281 | return INTEGER_PROMOTION_BADNESS; | |
2282 | case TYPE_CODE_FLT: | |
2283 | return INT_FLOAT_CONVERSION_BADNESS; | |
2284 | case TYPE_CODE_PTR: | |
2285 | return NS_POINTER_CONVERSION_BADNESS; | |
2286 | default: | |
2287 | return INCOMPATIBLE_TYPE_BADNESS; | |
2288 | } | |
2289 | break; | |
2290 | case TYPE_CODE_ENUM: | |
2291 | switch (TYPE_CODE (arg)) | |
2292 | { | |
2293 | case TYPE_CODE_INT: | |
2294 | case TYPE_CODE_CHAR: | |
2295 | case TYPE_CODE_RANGE: | |
2296 | case TYPE_CODE_BOOL: | |
2297 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2298 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2299 | case TYPE_CODE_FLT: |
2300 | return INT_FLOAT_CONVERSION_BADNESS; | |
2301 | default: | |
2302 | return INCOMPATIBLE_TYPE_BADNESS; | |
2303 | } | |
2304 | break; | |
2305 | case TYPE_CODE_CHAR: | |
2306 | switch (TYPE_CODE (arg)) | |
2307 | { | |
2308 | case TYPE_CODE_RANGE: | |
2309 | case TYPE_CODE_BOOL: | |
2310 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2311 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2312 | case TYPE_CODE_FLT: |
2313 | return INT_FLOAT_CONVERSION_BADNESS; | |
2314 | case TYPE_CODE_INT: | |
2315 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
1c5cb38e | 2316 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2317 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) |
2318 | return INTEGER_PROMOTION_BADNESS; | |
2319 | /* >>> !! else fall through !! <<< */ | |
2320 | case TYPE_CODE_CHAR: | |
7ba81444 MS |
2321 | /* Deal with signed, unsigned, and plain chars for C++ and |
2322 | with int cases falling through from previous case. */ | |
c5aa993b JM |
2323 | if (TYPE_NOSIGN (parm)) |
2324 | { | |
2325 | if (TYPE_NOSIGN (arg)) | |
2326 | return 0; | |
2327 | else | |
1c5cb38e | 2328 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2329 | } |
2330 | else if (TYPE_UNSIGNED (parm)) | |
2331 | { | |
2332 | if (TYPE_UNSIGNED (arg)) | |
2333 | return 0; | |
2334 | else | |
2335 | return INTEGER_PROMOTION_BADNESS; | |
2336 | } | |
2337 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2338 | return 0; | |
2339 | else | |
1c5cb38e | 2340 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2341 | default: |
2342 | return INCOMPATIBLE_TYPE_BADNESS; | |
2343 | } | |
2344 | break; | |
2345 | case TYPE_CODE_RANGE: | |
2346 | switch (TYPE_CODE (arg)) | |
2347 | { | |
2348 | case TYPE_CODE_INT: | |
2349 | case TYPE_CODE_CHAR: | |
2350 | case TYPE_CODE_RANGE: | |
2351 | case TYPE_CODE_BOOL: | |
2352 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2353 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2354 | case TYPE_CODE_FLT: |
2355 | return INT_FLOAT_CONVERSION_BADNESS; | |
2356 | default: | |
2357 | return INCOMPATIBLE_TYPE_BADNESS; | |
2358 | } | |
2359 | break; | |
2360 | case TYPE_CODE_BOOL: | |
2361 | switch (TYPE_CODE (arg)) | |
2362 | { | |
2363 | case TYPE_CODE_INT: | |
2364 | case TYPE_CODE_CHAR: | |
2365 | case TYPE_CODE_RANGE: | |
2366 | case TYPE_CODE_ENUM: | |
2367 | case TYPE_CODE_FLT: | |
2368 | case TYPE_CODE_PTR: | |
2369 | return BOOLEAN_CONVERSION_BADNESS; | |
2370 | case TYPE_CODE_BOOL: | |
2371 | return 0; | |
2372 | default: | |
2373 | return INCOMPATIBLE_TYPE_BADNESS; | |
2374 | } | |
2375 | break; | |
2376 | case TYPE_CODE_FLT: | |
2377 | switch (TYPE_CODE (arg)) | |
2378 | { | |
2379 | case TYPE_CODE_FLT: | |
2380 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2381 | return FLOAT_PROMOTION_BADNESS; | |
2382 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2383 | return 0; | |
2384 | else | |
2385 | return FLOAT_CONVERSION_BADNESS; | |
2386 | case TYPE_CODE_INT: | |
2387 | case TYPE_CODE_BOOL: | |
2388 | case TYPE_CODE_ENUM: | |
2389 | case TYPE_CODE_RANGE: | |
2390 | case TYPE_CODE_CHAR: | |
2391 | return INT_FLOAT_CONVERSION_BADNESS; | |
2392 | default: | |
2393 | return INCOMPATIBLE_TYPE_BADNESS; | |
2394 | } | |
2395 | break; | |
2396 | case TYPE_CODE_COMPLEX: | |
2397 | switch (TYPE_CODE (arg)) | |
7ba81444 | 2398 | { /* Strictly not needed for C++, but... */ |
c5aa993b JM |
2399 | case TYPE_CODE_FLT: |
2400 | return FLOAT_PROMOTION_BADNESS; | |
2401 | case TYPE_CODE_COMPLEX: | |
2402 | return 0; | |
2403 | default: | |
2404 | return INCOMPATIBLE_TYPE_BADNESS; | |
2405 | } | |
2406 | break; | |
2407 | case TYPE_CODE_STRUCT: | |
c906108c | 2408 | /* currently same as TYPE_CODE_CLASS */ |
c5aa993b JM |
2409 | switch (TYPE_CODE (arg)) |
2410 | { | |
2411 | case TYPE_CODE_STRUCT: | |
2412 | /* Check for derivation */ | |
2413 | if (is_ancestor (parm, arg)) | |
2414 | return BASE_CONVERSION_BADNESS; | |
2415 | /* else fall through */ | |
2416 | default: | |
2417 | return INCOMPATIBLE_TYPE_BADNESS; | |
2418 | } | |
2419 | break; | |
2420 | case TYPE_CODE_UNION: | |
2421 | switch (TYPE_CODE (arg)) | |
2422 | { | |
2423 | case TYPE_CODE_UNION: | |
2424 | default: | |
2425 | return INCOMPATIBLE_TYPE_BADNESS; | |
2426 | } | |
2427 | break; | |
0d5de010 | 2428 | case TYPE_CODE_MEMBERPTR: |
c5aa993b JM |
2429 | switch (TYPE_CODE (arg)) |
2430 | { | |
2431 | default: | |
2432 | return INCOMPATIBLE_TYPE_BADNESS; | |
2433 | } | |
2434 | break; | |
2435 | case TYPE_CODE_METHOD: | |
2436 | switch (TYPE_CODE (arg)) | |
2437 | { | |
2438 | ||
2439 | default: | |
2440 | return INCOMPATIBLE_TYPE_BADNESS; | |
2441 | } | |
2442 | break; | |
2443 | case TYPE_CODE_REF: | |
2444 | switch (TYPE_CODE (arg)) | |
2445 | { | |
2446 | ||
2447 | default: | |
2448 | return INCOMPATIBLE_TYPE_BADNESS; | |
2449 | } | |
2450 | ||
2451 | break; | |
2452 | case TYPE_CODE_SET: | |
2453 | switch (TYPE_CODE (arg)) | |
2454 | { | |
2455 | /* Not in C++ */ | |
2456 | case TYPE_CODE_SET: | |
7ba81444 MS |
2457 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), |
2458 | TYPE_FIELD_TYPE (arg, 0)); | |
c5aa993b JM |
2459 | default: |
2460 | return INCOMPATIBLE_TYPE_BADNESS; | |
2461 | } | |
2462 | break; | |
2463 | case TYPE_CODE_VOID: | |
2464 | default: | |
2465 | return INCOMPATIBLE_TYPE_BADNESS; | |
2466 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
2467 | } |
2468 | ||
c5aa993b JM |
2469 | |
2470 | /* End of functions for overload resolution */ | |
c906108c | 2471 | |
c906108c | 2472 | static void |
fba45db2 | 2473 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
2474 | { |
2475 | int bitno; | |
2476 | ||
2477 | for (bitno = 0; bitno < nbits; bitno++) | |
2478 | { | |
2479 | if ((bitno % 8) == 0) | |
2480 | { | |
2481 | puts_filtered (" "); | |
2482 | } | |
2483 | if (B_TST (bits, bitno)) | |
a3f17187 | 2484 | printf_filtered (("1")); |
c906108c | 2485 | else |
a3f17187 | 2486 | printf_filtered (("0")); |
c906108c SS |
2487 | } |
2488 | } | |
2489 | ||
ad2f7632 | 2490 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
2491 | include it since we may get into a infinitely recursive |
2492 | situation. */ | |
c906108c SS |
2493 | |
2494 | static void | |
ad2f7632 | 2495 | print_arg_types (struct field *args, int nargs, int spaces) |
c906108c SS |
2496 | { |
2497 | if (args != NULL) | |
2498 | { | |
ad2f7632 DJ |
2499 | int i; |
2500 | ||
2501 | for (i = 0; i < nargs; i++) | |
2502 | recursive_dump_type (args[i].type, spaces + 2); | |
c906108c SS |
2503 | } |
2504 | } | |
2505 | ||
d6a843b5 JK |
2506 | int |
2507 | field_is_static (struct field *f) | |
2508 | { | |
2509 | /* "static" fields are the fields whose location is not relative | |
2510 | to the address of the enclosing struct. It would be nice to | |
2511 | have a dedicated flag that would be set for static fields when | |
2512 | the type is being created. But in practice, checking the field | |
254e6b9e | 2513 | loc_kind should give us an accurate answer. */ |
d6a843b5 JK |
2514 | return (FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSNAME |
2515 | || FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSADDR); | |
2516 | } | |
2517 | ||
c906108c | 2518 | static void |
fba45db2 | 2519 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
2520 | { |
2521 | int method_idx; | |
2522 | int overload_idx; | |
2523 | struct fn_field *f; | |
2524 | ||
2525 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 2526 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
2527 | printf_filtered ("\n"); |
2528 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
2529 | { | |
2530 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
2531 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
2532 | method_idx, | |
2533 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
2534 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
2535 | gdb_stdout); | |
a3f17187 | 2536 | printf_filtered (_(") length %d\n"), |
c906108c SS |
2537 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
2538 | for (overload_idx = 0; | |
2539 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
2540 | overload_idx++) | |
2541 | { | |
2542 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
2543 | overload_idx, | |
2544 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
2545 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
2546 | gdb_stdout); | |
c906108c SS |
2547 | printf_filtered (")\n"); |
2548 | printfi_filtered (spaces + 8, "type "); | |
7ba81444 MS |
2549 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
2550 | gdb_stdout); | |
c906108c SS |
2551 | printf_filtered ("\n"); |
2552 | ||
2553 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
2554 | spaces + 8 + 2); | |
2555 | ||
2556 | printfi_filtered (spaces + 8, "args "); | |
7ba81444 MS |
2557 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
2558 | gdb_stdout); | |
c906108c SS |
2559 | printf_filtered ("\n"); |
2560 | ||
ad2f7632 | 2561 | print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), |
7ba81444 MS |
2562 | TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, |
2563 | overload_idx)), | |
ad2f7632 | 2564 | spaces); |
c906108c | 2565 | printfi_filtered (spaces + 8, "fcontext "); |
d4f3574e SS |
2566 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
2567 | gdb_stdout); | |
c906108c SS |
2568 | printf_filtered ("\n"); |
2569 | ||
2570 | printfi_filtered (spaces + 8, "is_const %d\n", | |
2571 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
2572 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
2573 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
2574 | printfi_filtered (spaces + 8, "is_private %d\n", | |
2575 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
2576 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
2577 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
2578 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
2579 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
2580 | printfi_filtered (spaces + 8, "voffset %u\n", | |
2581 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
2582 | } | |
2583 | } | |
2584 | } | |
2585 | ||
2586 | static void | |
fba45db2 | 2587 | print_cplus_stuff (struct type *type, int spaces) |
c906108c SS |
2588 | { |
2589 | printfi_filtered (spaces, "n_baseclasses %d\n", | |
2590 | TYPE_N_BASECLASSES (type)); | |
2591 | printfi_filtered (spaces, "nfn_fields %d\n", | |
2592 | TYPE_NFN_FIELDS (type)); | |
2593 | printfi_filtered (spaces, "nfn_fields_total %d\n", | |
2594 | TYPE_NFN_FIELDS_TOTAL (type)); | |
2595 | if (TYPE_N_BASECLASSES (type) > 0) | |
2596 | { | |
2597 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
2598 | TYPE_N_BASECLASSES (type)); | |
7ba81444 MS |
2599 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
2600 | gdb_stdout); | |
c906108c SS |
2601 | printf_filtered (")"); |
2602 | ||
2603 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
2604 | TYPE_N_BASECLASSES (type)); | |
2605 | puts_filtered ("\n"); | |
2606 | } | |
2607 | if (TYPE_NFIELDS (type) > 0) | |
2608 | { | |
2609 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
2610 | { | |
7ba81444 MS |
2611 | printfi_filtered (spaces, |
2612 | "private_field_bits (%d bits at *", | |
c906108c | 2613 | TYPE_NFIELDS (type)); |
7ba81444 MS |
2614 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
2615 | gdb_stdout); | |
c906108c SS |
2616 | printf_filtered (")"); |
2617 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
2618 | TYPE_NFIELDS (type)); | |
2619 | puts_filtered ("\n"); | |
2620 | } | |
2621 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
2622 | { | |
7ba81444 MS |
2623 | printfi_filtered (spaces, |
2624 | "protected_field_bits (%d bits at *", | |
c906108c | 2625 | TYPE_NFIELDS (type)); |
7ba81444 MS |
2626 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
2627 | gdb_stdout); | |
c906108c SS |
2628 | printf_filtered (")"); |
2629 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
2630 | TYPE_NFIELDS (type)); | |
2631 | puts_filtered ("\n"); | |
2632 | } | |
2633 | } | |
2634 | if (TYPE_NFN_FIELDS (type) > 0) | |
2635 | { | |
2636 | dump_fn_fieldlists (type, spaces); | |
2637 | } | |
2638 | } | |
2639 | ||
b4ba55a1 JB |
2640 | /* Print the contents of the TYPE's type_specific union, assuming that |
2641 | its type-specific kind is TYPE_SPECIFIC_GNAT_STUFF. */ | |
2642 | ||
2643 | static void | |
2644 | print_gnat_stuff (struct type *type, int spaces) | |
2645 | { | |
2646 | struct type *descriptive_type = TYPE_DESCRIPTIVE_TYPE (type); | |
2647 | ||
2648 | recursive_dump_type (descriptive_type, spaces + 2); | |
2649 | } | |
2650 | ||
c906108c SS |
2651 | static struct obstack dont_print_type_obstack; |
2652 | ||
2653 | void | |
fba45db2 | 2654 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
2655 | { |
2656 | int idx; | |
2657 | ||
2658 | if (spaces == 0) | |
2659 | obstack_begin (&dont_print_type_obstack, 0); | |
2660 | ||
2661 | if (TYPE_NFIELDS (type) > 0 | |
b4ba55a1 | 2662 | || (HAVE_CPLUS_STRUCT (type) && TYPE_NFN_FIELDS (type) > 0)) |
c906108c SS |
2663 | { |
2664 | struct type **first_dont_print | |
7ba81444 | 2665 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 2666 | |
7ba81444 MS |
2667 | int i = (struct type **) |
2668 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
2669 | |
2670 | while (--i >= 0) | |
2671 | { | |
2672 | if (type == first_dont_print[i]) | |
2673 | { | |
2674 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 2675 | gdb_print_host_address (type, gdb_stdout); |
a3f17187 | 2676 | printf_filtered (_(" <same as already seen type>\n")); |
c906108c SS |
2677 | return; |
2678 | } | |
2679 | } | |
2680 | ||
2681 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
2682 | } | |
2683 | ||
2684 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 2685 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
2686 | printf_filtered ("\n"); |
2687 | printfi_filtered (spaces, "name '%s' (", | |
2688 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 2689 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c | 2690 | printf_filtered (")\n"); |
e9e79dd9 FF |
2691 | printfi_filtered (spaces, "tagname '%s' (", |
2692 | TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>"); | |
2693 | gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); | |
2694 | printf_filtered (")\n"); | |
c906108c SS |
2695 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
2696 | switch (TYPE_CODE (type)) | |
2697 | { | |
c5aa993b JM |
2698 | case TYPE_CODE_UNDEF: |
2699 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
2700 | break; | |
2701 | case TYPE_CODE_PTR: | |
2702 | printf_filtered ("(TYPE_CODE_PTR)"); | |
2703 | break; | |
2704 | case TYPE_CODE_ARRAY: | |
2705 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
2706 | break; | |
2707 | case TYPE_CODE_STRUCT: | |
2708 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
2709 | break; | |
2710 | case TYPE_CODE_UNION: | |
2711 | printf_filtered ("(TYPE_CODE_UNION)"); | |
2712 | break; | |
2713 | case TYPE_CODE_ENUM: | |
2714 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
2715 | break; | |
4f2aea11 MK |
2716 | case TYPE_CODE_FLAGS: |
2717 | printf_filtered ("(TYPE_CODE_FLAGS)"); | |
2718 | break; | |
c5aa993b JM |
2719 | case TYPE_CODE_FUNC: |
2720 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
2721 | break; | |
2722 | case TYPE_CODE_INT: | |
2723 | printf_filtered ("(TYPE_CODE_INT)"); | |
2724 | break; | |
2725 | case TYPE_CODE_FLT: | |
2726 | printf_filtered ("(TYPE_CODE_FLT)"); | |
2727 | break; | |
2728 | case TYPE_CODE_VOID: | |
2729 | printf_filtered ("(TYPE_CODE_VOID)"); | |
2730 | break; | |
2731 | case TYPE_CODE_SET: | |
2732 | printf_filtered ("(TYPE_CODE_SET)"); | |
2733 | break; | |
2734 | case TYPE_CODE_RANGE: | |
2735 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
2736 | break; | |
2737 | case TYPE_CODE_STRING: | |
2738 | printf_filtered ("(TYPE_CODE_STRING)"); | |
2739 | break; | |
e9e79dd9 FF |
2740 | case TYPE_CODE_BITSTRING: |
2741 | printf_filtered ("(TYPE_CODE_BITSTRING)"); | |
2742 | break; | |
c5aa993b JM |
2743 | case TYPE_CODE_ERROR: |
2744 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
2745 | break; | |
0d5de010 DJ |
2746 | case TYPE_CODE_MEMBERPTR: |
2747 | printf_filtered ("(TYPE_CODE_MEMBERPTR)"); | |
2748 | break; | |
2749 | case TYPE_CODE_METHODPTR: | |
2750 | printf_filtered ("(TYPE_CODE_METHODPTR)"); | |
c5aa993b JM |
2751 | break; |
2752 | case TYPE_CODE_METHOD: | |
2753 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
2754 | break; | |
2755 | case TYPE_CODE_REF: | |
2756 | printf_filtered ("(TYPE_CODE_REF)"); | |
2757 | break; | |
2758 | case TYPE_CODE_CHAR: | |
2759 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
2760 | break; | |
2761 | case TYPE_CODE_BOOL: | |
2762 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
2763 | break; | |
e9e79dd9 FF |
2764 | case TYPE_CODE_COMPLEX: |
2765 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
2766 | break; | |
c5aa993b JM |
2767 | case TYPE_CODE_TYPEDEF: |
2768 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
2769 | break; | |
5c4e30ca DC |
2770 | case TYPE_CODE_NAMESPACE: |
2771 | printf_filtered ("(TYPE_CODE_NAMESPACE)"); | |
2772 | break; | |
c5aa993b JM |
2773 | default: |
2774 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
2775 | break; | |
c906108c SS |
2776 | } |
2777 | puts_filtered ("\n"); | |
2778 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
e9bb382b UW |
2779 | if (TYPE_OBJFILE_OWNED (type)) |
2780 | { | |
2781 | printfi_filtered (spaces, "objfile "); | |
2782 | gdb_print_host_address (TYPE_OWNER (type).objfile, gdb_stdout); | |
2783 | } | |
2784 | else | |
2785 | { | |
2786 | printfi_filtered (spaces, "gdbarch "); | |
2787 | gdb_print_host_address (TYPE_OWNER (type).gdbarch, gdb_stdout); | |
2788 | } | |
c906108c SS |
2789 | printf_filtered ("\n"); |
2790 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 2791 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
2792 | printf_filtered ("\n"); |
2793 | if (TYPE_TARGET_TYPE (type) != NULL) | |
2794 | { | |
2795 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
2796 | } | |
2797 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 2798 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
2799 | printf_filtered ("\n"); |
2800 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 2801 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 2802 | printf_filtered ("\n"); |
2fdde8f8 DJ |
2803 | printfi_filtered (spaces, "type_chain "); |
2804 | gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); | |
e9e79dd9 | 2805 | printf_filtered ("\n"); |
7ba81444 MS |
2806 | printfi_filtered (spaces, "instance_flags 0x%x", |
2807 | TYPE_INSTANCE_FLAGS (type)); | |
2fdde8f8 DJ |
2808 | if (TYPE_CONST (type)) |
2809 | { | |
2810 | puts_filtered (" TYPE_FLAG_CONST"); | |
2811 | } | |
2812 | if (TYPE_VOLATILE (type)) | |
2813 | { | |
2814 | puts_filtered (" TYPE_FLAG_VOLATILE"); | |
2815 | } | |
2816 | if (TYPE_CODE_SPACE (type)) | |
2817 | { | |
2818 | puts_filtered (" TYPE_FLAG_CODE_SPACE"); | |
2819 | } | |
2820 | if (TYPE_DATA_SPACE (type)) | |
2821 | { | |
2822 | puts_filtered (" TYPE_FLAG_DATA_SPACE"); | |
2823 | } | |
8b2dbe47 KB |
2824 | if (TYPE_ADDRESS_CLASS_1 (type)) |
2825 | { | |
2826 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_1"); | |
2827 | } | |
2828 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
2829 | { | |
2830 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_2"); | |
2831 | } | |
2fdde8f8 | 2832 | puts_filtered ("\n"); |
876cecd0 TT |
2833 | |
2834 | printfi_filtered (spaces, "flags"); | |
762a036f | 2835 | if (TYPE_UNSIGNED (type)) |
c906108c SS |
2836 | { |
2837 | puts_filtered (" TYPE_FLAG_UNSIGNED"); | |
2838 | } | |
762a036f FF |
2839 | if (TYPE_NOSIGN (type)) |
2840 | { | |
2841 | puts_filtered (" TYPE_FLAG_NOSIGN"); | |
2842 | } | |
2843 | if (TYPE_STUB (type)) | |
c906108c SS |
2844 | { |
2845 | puts_filtered (" TYPE_FLAG_STUB"); | |
2846 | } | |
762a036f FF |
2847 | if (TYPE_TARGET_STUB (type)) |
2848 | { | |
2849 | puts_filtered (" TYPE_FLAG_TARGET_STUB"); | |
2850 | } | |
2851 | if (TYPE_STATIC (type)) | |
2852 | { | |
2853 | puts_filtered (" TYPE_FLAG_STATIC"); | |
2854 | } | |
762a036f FF |
2855 | if (TYPE_PROTOTYPED (type)) |
2856 | { | |
2857 | puts_filtered (" TYPE_FLAG_PROTOTYPED"); | |
2858 | } | |
2859 | if (TYPE_INCOMPLETE (type)) | |
2860 | { | |
2861 | puts_filtered (" TYPE_FLAG_INCOMPLETE"); | |
2862 | } | |
762a036f FF |
2863 | if (TYPE_VARARGS (type)) |
2864 | { | |
2865 | puts_filtered (" TYPE_FLAG_VARARGS"); | |
2866 | } | |
f5f8a009 EZ |
2867 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
2868 | an attribute for the array type, which tells whether or not we | |
2869 | have a vector, instead of a regular array. */ | |
2870 | if (TYPE_VECTOR (type)) | |
2871 | { | |
2872 | puts_filtered (" TYPE_FLAG_VECTOR"); | |
2873 | } | |
876cecd0 TT |
2874 | if (TYPE_FIXED_INSTANCE (type)) |
2875 | { | |
2876 | puts_filtered (" TYPE_FIXED_INSTANCE"); | |
2877 | } | |
2878 | if (TYPE_STUB_SUPPORTED (type)) | |
2879 | { | |
2880 | puts_filtered (" TYPE_STUB_SUPPORTED"); | |
2881 | } | |
2882 | if (TYPE_NOTTEXT (type)) | |
2883 | { | |
2884 | puts_filtered (" TYPE_NOTTEXT"); | |
2885 | } | |
c906108c SS |
2886 | puts_filtered ("\n"); |
2887 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 2888 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
2889 | puts_filtered ("\n"); |
2890 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
2891 | { | |
2892 | printfi_filtered (spaces + 2, | |
2893 | "[%d] bitpos %d bitsize %d type ", | |
2894 | idx, TYPE_FIELD_BITPOS (type, idx), | |
2895 | TYPE_FIELD_BITSIZE (type, idx)); | |
d4f3574e | 2896 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
2897 | printf_filtered (" name '%s' (", |
2898 | TYPE_FIELD_NAME (type, idx) != NULL | |
2899 | ? TYPE_FIELD_NAME (type, idx) | |
2900 | : "<NULL>"); | |
d4f3574e | 2901 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
2902 | printf_filtered (")\n"); |
2903 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
2904 | { | |
2905 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
2906 | } | |
2907 | } | |
43bbcdc2 PH |
2908 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
2909 | { | |
2910 | printfi_filtered (spaces, "low %s%s high %s%s\n", | |
2911 | plongest (TYPE_LOW_BOUND (type)), | |
2912 | TYPE_LOW_BOUND_UNDEFINED (type) ? " (undefined)" : "", | |
2913 | plongest (TYPE_HIGH_BOUND (type)), | |
2914 | TYPE_HIGH_BOUND_UNDEFINED (type) ? " (undefined)" : ""); | |
2915 | } | |
c906108c | 2916 | printfi_filtered (spaces, "vptr_basetype "); |
d4f3574e | 2917 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); |
c906108c SS |
2918 | puts_filtered ("\n"); |
2919 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
2920 | { | |
2921 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
2922 | } | |
7ba81444 MS |
2923 | printfi_filtered (spaces, "vptr_fieldno %d\n", |
2924 | TYPE_VPTR_FIELDNO (type)); | |
c906108c | 2925 | |
b4ba55a1 JB |
2926 | switch (TYPE_SPECIFIC_FIELD (type)) |
2927 | { | |
2928 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
2929 | printfi_filtered (spaces, "cplus_stuff "); | |
2930 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), | |
2931 | gdb_stdout); | |
2932 | puts_filtered ("\n"); | |
2933 | print_cplus_stuff (type, spaces); | |
2934 | break; | |
8da61cc4 | 2935 | |
b4ba55a1 JB |
2936 | case TYPE_SPECIFIC_GNAT_STUFF: |
2937 | printfi_filtered (spaces, "gnat_stuff "); | |
2938 | gdb_print_host_address (TYPE_GNAT_SPECIFIC (type), gdb_stdout); | |
2939 | puts_filtered ("\n"); | |
2940 | print_gnat_stuff (type, spaces); | |
2941 | break; | |
701c159d | 2942 | |
b4ba55a1 JB |
2943 | case TYPE_SPECIFIC_FLOATFORMAT: |
2944 | printfi_filtered (spaces, "floatformat "); | |
2945 | if (TYPE_FLOATFORMAT (type) == NULL) | |
2946 | puts_filtered ("(null)"); | |
2947 | else | |
2948 | { | |
2949 | puts_filtered ("{ "); | |
2950 | if (TYPE_FLOATFORMAT (type)[0] == NULL | |
2951 | || TYPE_FLOATFORMAT (type)[0]->name == NULL) | |
2952 | puts_filtered ("(null)"); | |
2953 | else | |
2954 | puts_filtered (TYPE_FLOATFORMAT (type)[0]->name); | |
2955 | ||
2956 | puts_filtered (", "); | |
2957 | if (TYPE_FLOATFORMAT (type)[1] == NULL | |
2958 | || TYPE_FLOATFORMAT (type)[1]->name == NULL) | |
2959 | puts_filtered ("(null)"); | |
2960 | else | |
2961 | puts_filtered (TYPE_FLOATFORMAT (type)[1]->name); | |
2962 | ||
2963 | puts_filtered (" }"); | |
2964 | } | |
2965 | puts_filtered ("\n"); | |
2966 | break; | |
c906108c | 2967 | |
b4ba55a1 JB |
2968 | case TYPE_SPECIFIC_CALLING_CONVENTION: |
2969 | printfi_filtered (spaces, "calling_convention %d\n", | |
2970 | TYPE_CALLING_CONVENTION (type)); | |
2971 | break; | |
c906108c | 2972 | } |
b4ba55a1 | 2973 | |
c906108c SS |
2974 | if (spaces == 0) |
2975 | obstack_free (&dont_print_type_obstack, NULL); | |
2976 | } | |
2977 | ||
ae5a43e0 DJ |
2978 | /* Trivial helpers for the libiberty hash table, for mapping one |
2979 | type to another. */ | |
2980 | ||
2981 | struct type_pair | |
2982 | { | |
2983 | struct type *old, *new; | |
2984 | }; | |
2985 | ||
2986 | static hashval_t | |
2987 | type_pair_hash (const void *item) | |
2988 | { | |
2989 | const struct type_pair *pair = item; | |
d8734c88 | 2990 | |
ae5a43e0 DJ |
2991 | return htab_hash_pointer (pair->old); |
2992 | } | |
2993 | ||
2994 | static int | |
2995 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
2996 | { | |
2997 | const struct type_pair *lhs = item_lhs, *rhs = item_rhs; | |
d8734c88 | 2998 | |
ae5a43e0 DJ |
2999 | return lhs->old == rhs->old; |
3000 | } | |
3001 | ||
3002 | /* Allocate the hash table used by copy_type_recursive to walk | |
3003 | types without duplicates. We use OBJFILE's obstack, because | |
3004 | OBJFILE is about to be deleted. */ | |
3005 | ||
3006 | htab_t | |
3007 | create_copied_types_hash (struct objfile *objfile) | |
3008 | { | |
3009 | return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, | |
3010 | NULL, &objfile->objfile_obstack, | |
3011 | hashtab_obstack_allocate, | |
3012 | dummy_obstack_deallocate); | |
3013 | } | |
3014 | ||
7ba81444 MS |
3015 | /* Recursively copy (deep copy) TYPE, if it is associated with |
3016 | OBJFILE. Return a new type allocated using malloc, a saved type if | |
3017 | we have already visited TYPE (using COPIED_TYPES), or TYPE if it is | |
3018 | not associated with OBJFILE. */ | |
ae5a43e0 DJ |
3019 | |
3020 | struct type * | |
7ba81444 MS |
3021 | copy_type_recursive (struct objfile *objfile, |
3022 | struct type *type, | |
ae5a43e0 DJ |
3023 | htab_t copied_types) |
3024 | { | |
3025 | struct type_pair *stored, pair; | |
3026 | void **slot; | |
3027 | struct type *new_type; | |
3028 | ||
e9bb382b | 3029 | if (! TYPE_OBJFILE_OWNED (type)) |
ae5a43e0 DJ |
3030 | return type; |
3031 | ||
7ba81444 MS |
3032 | /* This type shouldn't be pointing to any types in other objfiles; |
3033 | if it did, the type might disappear unexpectedly. */ | |
ae5a43e0 DJ |
3034 | gdb_assert (TYPE_OBJFILE (type) == objfile); |
3035 | ||
3036 | pair.old = type; | |
3037 | slot = htab_find_slot (copied_types, &pair, INSERT); | |
3038 | if (*slot != NULL) | |
3039 | return ((struct type_pair *) *slot)->new; | |
3040 | ||
e9bb382b | 3041 | new_type = alloc_type_arch (get_type_arch (type)); |
ae5a43e0 DJ |
3042 | |
3043 | /* We must add the new type to the hash table immediately, in case | |
3044 | we encounter this type again during a recursive call below. */ | |
d87ecdfb | 3045 | stored = obstack_alloc (&objfile->objfile_obstack, sizeof (struct type_pair)); |
ae5a43e0 DJ |
3046 | stored->old = type; |
3047 | stored->new = new_type; | |
3048 | *slot = stored; | |
3049 | ||
876cecd0 TT |
3050 | /* Copy the common fields of types. For the main type, we simply |
3051 | copy the entire thing and then update specific fields as needed. */ | |
3052 | *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type); | |
e9bb382b UW |
3053 | TYPE_OBJFILE_OWNED (new_type) = 0; |
3054 | TYPE_OWNER (new_type).gdbarch = get_type_arch (type); | |
876cecd0 | 3055 | |
ae5a43e0 DJ |
3056 | if (TYPE_NAME (type)) |
3057 | TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type)); | |
3058 | if (TYPE_TAG_NAME (type)) | |
3059 | TYPE_TAG_NAME (new_type) = xstrdup (TYPE_TAG_NAME (type)); | |
ae5a43e0 DJ |
3060 | |
3061 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); | |
3062 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
3063 | ||
3064 | /* Copy the fields. */ | |
ae5a43e0 DJ |
3065 | if (TYPE_NFIELDS (type)) |
3066 | { | |
3067 | int i, nfields; | |
3068 | ||
3069 | nfields = TYPE_NFIELDS (type); | |
1deafd4e | 3070 | TYPE_FIELDS (new_type) = XCALLOC (nfields, struct field); |
ae5a43e0 DJ |
3071 | for (i = 0; i < nfields; i++) |
3072 | { | |
7ba81444 MS |
3073 | TYPE_FIELD_ARTIFICIAL (new_type, i) = |
3074 | TYPE_FIELD_ARTIFICIAL (type, i); | |
ae5a43e0 DJ |
3075 | TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
3076 | if (TYPE_FIELD_TYPE (type, i)) | |
3077 | TYPE_FIELD_TYPE (new_type, i) | |
3078 | = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i), | |
3079 | copied_types); | |
3080 | if (TYPE_FIELD_NAME (type, i)) | |
7ba81444 MS |
3081 | TYPE_FIELD_NAME (new_type, i) = |
3082 | xstrdup (TYPE_FIELD_NAME (type, i)); | |
d6a843b5 | 3083 | switch (TYPE_FIELD_LOC_KIND (type, i)) |
ae5a43e0 | 3084 | { |
d6a843b5 JK |
3085 | case FIELD_LOC_KIND_BITPOS: |
3086 | SET_FIELD_BITPOS (TYPE_FIELD (new_type, i), | |
3087 | TYPE_FIELD_BITPOS (type, i)); | |
3088 | break; | |
3089 | case FIELD_LOC_KIND_PHYSADDR: | |
3090 | SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i), | |
3091 | TYPE_FIELD_STATIC_PHYSADDR (type, i)); | |
3092 | break; | |
3093 | case FIELD_LOC_KIND_PHYSNAME: | |
3094 | SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i), | |
3095 | xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, | |
3096 | i))); | |
3097 | break; | |
3098 | default: | |
3099 | internal_error (__FILE__, __LINE__, | |
3100 | _("Unexpected type field location kind: %d"), | |
3101 | TYPE_FIELD_LOC_KIND (type, i)); | |
ae5a43e0 DJ |
3102 | } |
3103 | } | |
3104 | } | |
3105 | ||
43bbcdc2 PH |
3106 | /* For range types, copy the bounds information. */ |
3107 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) | |
3108 | { | |
3109 | TYPE_RANGE_DATA (new_type) = xmalloc (sizeof (struct range_bounds)); | |
3110 | *TYPE_RANGE_DATA (new_type) = *TYPE_RANGE_DATA (type); | |
3111 | } | |
3112 | ||
ae5a43e0 DJ |
3113 | /* Copy pointers to other types. */ |
3114 | if (TYPE_TARGET_TYPE (type)) | |
7ba81444 MS |
3115 | TYPE_TARGET_TYPE (new_type) = |
3116 | copy_type_recursive (objfile, | |
3117 | TYPE_TARGET_TYPE (type), | |
3118 | copied_types); | |
ae5a43e0 | 3119 | if (TYPE_VPTR_BASETYPE (type)) |
7ba81444 MS |
3120 | TYPE_VPTR_BASETYPE (new_type) = |
3121 | copy_type_recursive (objfile, | |
3122 | TYPE_VPTR_BASETYPE (type), | |
3123 | copied_types); | |
ae5a43e0 DJ |
3124 | /* Maybe copy the type_specific bits. |
3125 | ||
3126 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
3127 | base classes and methods. There's no fundamental reason why we | |
3128 | can't, but at the moment it is not needed. */ | |
3129 | ||
3130 | if (TYPE_CODE (type) == TYPE_CODE_FLT) | |
d5d6fca5 | 3131 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); |
ae5a43e0 DJ |
3132 | else if (TYPE_CODE (type) == TYPE_CODE_STRUCT |
3133 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
ae5a43e0 DJ |
3134 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) |
3135 | INIT_CPLUS_SPECIFIC (new_type); | |
3136 | ||
3137 | return new_type; | |
3138 | } | |
3139 | ||
4af88198 JB |
3140 | /* Make a copy of the given TYPE, except that the pointer & reference |
3141 | types are not preserved. | |
3142 | ||
3143 | This function assumes that the given type has an associated objfile. | |
3144 | This objfile is used to allocate the new type. */ | |
3145 | ||
3146 | struct type * | |
3147 | copy_type (const struct type *type) | |
3148 | { | |
3149 | struct type *new_type; | |
3150 | ||
e9bb382b | 3151 | gdb_assert (TYPE_OBJFILE_OWNED (type)); |
4af88198 | 3152 | |
e9bb382b | 3153 | new_type = alloc_type_copy (type); |
4af88198 JB |
3154 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); |
3155 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
3156 | memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type), | |
3157 | sizeof (struct main_type)); | |
3158 | ||
3159 | return new_type; | |
3160 | } | |
3161 | ||
e9bb382b UW |
3162 | |
3163 | /* Helper functions to initialize architecture-specific types. */ | |
3164 | ||
3165 | /* Allocate a type structure associated with GDBARCH and set its | |
3166 | CODE, LENGTH, and NAME fields. */ | |
3167 | struct type * | |
3168 | arch_type (struct gdbarch *gdbarch, | |
3169 | enum type_code code, int length, char *name) | |
3170 | { | |
3171 | struct type *type; | |
3172 | ||
3173 | type = alloc_type_arch (gdbarch); | |
3174 | TYPE_CODE (type) = code; | |
3175 | TYPE_LENGTH (type) = length; | |
3176 | ||
3177 | if (name) | |
3178 | TYPE_NAME (type) = xstrdup (name); | |
3179 | ||
3180 | return type; | |
3181 | } | |
3182 | ||
3183 | /* Allocate a TYPE_CODE_INT type structure associated with GDBARCH. | |
3184 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3185 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
3186 | struct type * | |
3187 | arch_integer_type (struct gdbarch *gdbarch, | |
3188 | int bit, int unsigned_p, char *name) | |
3189 | { | |
3190 | struct type *t; | |
3191 | ||
3192 | t = arch_type (gdbarch, TYPE_CODE_INT, bit / TARGET_CHAR_BIT, name); | |
3193 | if (unsigned_p) | |
3194 | TYPE_UNSIGNED (t) = 1; | |
3195 | if (name && strcmp (name, "char") == 0) | |
3196 | TYPE_NOSIGN (t) = 1; | |
3197 | ||
3198 | return t; | |
3199 | } | |
3200 | ||
3201 | /* Allocate a TYPE_CODE_CHAR type structure associated with GDBARCH. | |
3202 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3203 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
3204 | struct type * | |
3205 | arch_character_type (struct gdbarch *gdbarch, | |
3206 | int bit, int unsigned_p, char *name) | |
3207 | { | |
3208 | struct type *t; | |
3209 | ||
3210 | t = arch_type (gdbarch, TYPE_CODE_CHAR, bit / TARGET_CHAR_BIT, name); | |
3211 | if (unsigned_p) | |
3212 | TYPE_UNSIGNED (t) = 1; | |
3213 | ||
3214 | return t; | |
3215 | } | |
3216 | ||
3217 | /* Allocate a TYPE_CODE_BOOL type structure associated with GDBARCH. | |
3218 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3219 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
3220 | struct type * | |
3221 | arch_boolean_type (struct gdbarch *gdbarch, | |
3222 | int bit, int unsigned_p, char *name) | |
3223 | { | |
3224 | struct type *t; | |
3225 | ||
3226 | t = arch_type (gdbarch, TYPE_CODE_BOOL, bit / TARGET_CHAR_BIT, name); | |
3227 | if (unsigned_p) | |
3228 | TYPE_UNSIGNED (t) = 1; | |
3229 | ||
3230 | return t; | |
3231 | } | |
3232 | ||
3233 | /* Allocate a TYPE_CODE_FLT type structure associated with GDBARCH. | |
3234 | BIT is the type size in bits; if BIT equals -1, the size is | |
3235 | determined by the floatformat. NAME is the type name. Set the | |
3236 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
27067745 | 3237 | struct type * |
e9bb382b UW |
3238 | arch_float_type (struct gdbarch *gdbarch, |
3239 | int bit, char *name, const struct floatformat **floatformats) | |
8da61cc4 DJ |
3240 | { |
3241 | struct type *t; | |
3242 | ||
3243 | if (bit == -1) | |
3244 | { | |
3245 | gdb_assert (floatformats != NULL); | |
3246 | gdb_assert (floatformats[0] != NULL && floatformats[1] != NULL); | |
3247 | bit = floatformats[0]->totalsize; | |
3248 | } | |
3249 | gdb_assert (bit >= 0); | |
3250 | ||
e9bb382b | 3251 | t = arch_type (gdbarch, TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, name); |
8da61cc4 DJ |
3252 | TYPE_FLOATFORMAT (t) = floatformats; |
3253 | return t; | |
3254 | } | |
3255 | ||
e9bb382b UW |
3256 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with GDBARCH. |
3257 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
27067745 | 3258 | struct type * |
e9bb382b UW |
3259 | arch_complex_type (struct gdbarch *gdbarch, |
3260 | char *name, struct type *target_type) | |
27067745 UW |
3261 | { |
3262 | struct type *t; | |
d8734c88 | 3263 | |
e9bb382b UW |
3264 | t = arch_type (gdbarch, TYPE_CODE_COMPLEX, |
3265 | 2 * TYPE_LENGTH (target_type), name); | |
27067745 UW |
3266 | TYPE_TARGET_TYPE (t) = target_type; |
3267 | return t; | |
3268 | } | |
3269 | ||
e9bb382b | 3270 | /* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH. |
eb90ce83 | 3271 | NAME is the type name. LENGTH is the size of the flag word in bytes. */ |
e9bb382b UW |
3272 | struct type * |
3273 | arch_flags_type (struct gdbarch *gdbarch, char *name, int length) | |
3274 | { | |
3275 | int nfields = length * TARGET_CHAR_BIT; | |
3276 | struct type *type; | |
3277 | ||
3278 | type = arch_type (gdbarch, TYPE_CODE_FLAGS, length, name); | |
3279 | TYPE_UNSIGNED (type) = 1; | |
3280 | TYPE_NFIELDS (type) = nfields; | |
3281 | TYPE_FIELDS (type) = TYPE_ZALLOC (type, nfields * sizeof (struct field)); | |
3282 | ||
3283 | return type; | |
3284 | } | |
3285 | ||
3286 | /* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
3287 | position BITPOS is called NAME. */ | |
3288 | void | |
3289 | append_flags_type_flag (struct type *type, int bitpos, char *name) | |
3290 | { | |
3291 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS); | |
3292 | gdb_assert (bitpos < TYPE_NFIELDS (type)); | |
3293 | gdb_assert (bitpos >= 0); | |
3294 | ||
3295 | if (name) | |
3296 | { | |
3297 | TYPE_FIELD_NAME (type, bitpos) = xstrdup (name); | |
3298 | TYPE_FIELD_BITPOS (type, bitpos) = bitpos; | |
3299 | } | |
3300 | else | |
3301 | { | |
3302 | /* Don't show this field to the user. */ | |
3303 | TYPE_FIELD_BITPOS (type, bitpos) = -1; | |
3304 | } | |
3305 | } | |
3306 | ||
3307 | /* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as | |
3308 | specified by CODE) associated with GDBARCH. NAME is the type name. */ | |
3309 | struct type * | |
3310 | arch_composite_type (struct gdbarch *gdbarch, char *name, enum type_code code) | |
3311 | { | |
3312 | struct type *t; | |
d8734c88 | 3313 | |
e9bb382b UW |
3314 | gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION); |
3315 | t = arch_type (gdbarch, code, 0, NULL); | |
3316 | TYPE_TAG_NAME (t) = name; | |
3317 | INIT_CPLUS_SPECIFIC (t); | |
3318 | return t; | |
3319 | } | |
3320 | ||
3321 | /* Add new field with name NAME and type FIELD to composite type T. | |
f5dff777 DJ |
3322 | Do not set the field's position or adjust the type's length; |
3323 | the caller should do so. Return the new field. */ | |
3324 | struct field * | |
3325 | append_composite_type_field_raw (struct type *t, char *name, | |
3326 | struct type *field) | |
e9bb382b UW |
3327 | { |
3328 | struct field *f; | |
d8734c88 | 3329 | |
e9bb382b UW |
3330 | TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; |
3331 | TYPE_FIELDS (t) = xrealloc (TYPE_FIELDS (t), | |
3332 | sizeof (struct field) * TYPE_NFIELDS (t)); | |
3333 | f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); | |
3334 | memset (f, 0, sizeof f[0]); | |
3335 | FIELD_TYPE (f[0]) = field; | |
3336 | FIELD_NAME (f[0]) = name; | |
f5dff777 DJ |
3337 | return f; |
3338 | } | |
3339 | ||
3340 | /* Add new field with name NAME and type FIELD to composite type T. | |
3341 | ALIGNMENT (if non-zero) specifies the minimum field alignment. */ | |
3342 | void | |
3343 | append_composite_type_field_aligned (struct type *t, char *name, | |
3344 | struct type *field, int alignment) | |
3345 | { | |
3346 | struct field *f = append_composite_type_field_raw (t, name, field); | |
d8734c88 | 3347 | |
e9bb382b UW |
3348 | if (TYPE_CODE (t) == TYPE_CODE_UNION) |
3349 | { | |
3350 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) | |
3351 | TYPE_LENGTH (t) = TYPE_LENGTH (field); | |
3352 | } | |
3353 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
3354 | { | |
3355 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
3356 | if (TYPE_NFIELDS (t) > 1) | |
3357 | { | |
3358 | FIELD_BITPOS (f[0]) = (FIELD_BITPOS (f[-1]) | |
3359 | + (TYPE_LENGTH (FIELD_TYPE (f[-1])) | |
3360 | * TARGET_CHAR_BIT)); | |
3361 | ||
3362 | if (alignment) | |
3363 | { | |
3364 | int left = FIELD_BITPOS (f[0]) % (alignment * TARGET_CHAR_BIT); | |
d8734c88 | 3365 | |
e9bb382b UW |
3366 | if (left) |
3367 | { | |
3368 | FIELD_BITPOS (f[0]) += left; | |
3369 | TYPE_LENGTH (t) += left / TARGET_CHAR_BIT; | |
3370 | } | |
3371 | } | |
3372 | } | |
3373 | } | |
3374 | } | |
3375 | ||
3376 | /* Add new field with name NAME and type FIELD to composite type T. */ | |
3377 | void | |
3378 | append_composite_type_field (struct type *t, char *name, | |
3379 | struct type *field) | |
3380 | { | |
3381 | append_composite_type_field_aligned (t, name, field, 0); | |
3382 | } | |
3383 | ||
3384 | ||
000177f0 AC |
3385 | static struct gdbarch_data *gdbtypes_data; |
3386 | ||
3387 | const struct builtin_type * | |
3388 | builtin_type (struct gdbarch *gdbarch) | |
3389 | { | |
3390 | return gdbarch_data (gdbarch, gdbtypes_data); | |
3391 | } | |
3392 | ||
3393 | static void * | |
3394 | gdbtypes_post_init (struct gdbarch *gdbarch) | |
3395 | { | |
3396 | struct builtin_type *builtin_type | |
3397 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); | |
3398 | ||
46bf5051 | 3399 | /* Basic types. */ |
e9bb382b UW |
3400 | builtin_type->builtin_void |
3401 | = arch_type (gdbarch, TYPE_CODE_VOID, 1, "void"); | |
3402 | builtin_type->builtin_char | |
3403 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
3404 | !gdbarch_char_signed (gdbarch), "char"); | |
3405 | builtin_type->builtin_signed_char | |
3406 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
3407 | 0, "signed char"); | |
3408 | builtin_type->builtin_unsigned_char | |
3409 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
3410 | 1, "unsigned char"); | |
3411 | builtin_type->builtin_short | |
3412 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
3413 | 0, "short"); | |
3414 | builtin_type->builtin_unsigned_short | |
3415 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
3416 | 1, "unsigned short"); | |
3417 | builtin_type->builtin_int | |
3418 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
3419 | 0, "int"); | |
3420 | builtin_type->builtin_unsigned_int | |
3421 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
3422 | 1, "unsigned int"); | |
3423 | builtin_type->builtin_long | |
3424 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
3425 | 0, "long"); | |
3426 | builtin_type->builtin_unsigned_long | |
3427 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
3428 | 1, "unsigned long"); | |
3429 | builtin_type->builtin_long_long | |
3430 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
3431 | 0, "long long"); | |
3432 | builtin_type->builtin_unsigned_long_long | |
3433 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
3434 | 1, "unsigned long long"); | |
70bd8e24 | 3435 | builtin_type->builtin_float |
e9bb382b | 3436 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), |
27067745 | 3437 | "float", gdbarch_float_format (gdbarch)); |
70bd8e24 | 3438 | builtin_type->builtin_double |
e9bb382b | 3439 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), |
27067745 | 3440 | "double", gdbarch_double_format (gdbarch)); |
70bd8e24 | 3441 | builtin_type->builtin_long_double |
e9bb382b | 3442 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), |
27067745 | 3443 | "long double", gdbarch_long_double_format (gdbarch)); |
70bd8e24 | 3444 | builtin_type->builtin_complex |
e9bb382b UW |
3445 | = arch_complex_type (gdbarch, "complex", |
3446 | builtin_type->builtin_float); | |
70bd8e24 | 3447 | builtin_type->builtin_double_complex |
e9bb382b UW |
3448 | = arch_complex_type (gdbarch, "double complex", |
3449 | builtin_type->builtin_double); | |
3450 | builtin_type->builtin_string | |
3451 | = arch_type (gdbarch, TYPE_CODE_STRING, 1, "string"); | |
3452 | builtin_type->builtin_bool | |
3453 | = arch_type (gdbarch, TYPE_CODE_BOOL, 1, "bool"); | |
000177f0 | 3454 | |
7678ef8f TJB |
3455 | /* The following three are about decimal floating point types, which |
3456 | are 32-bits, 64-bits and 128-bits respectively. */ | |
3457 | builtin_type->builtin_decfloat | |
e9bb382b | 3458 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 32 / 8, "_Decimal32"); |
7678ef8f | 3459 | builtin_type->builtin_decdouble |
e9bb382b | 3460 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 64 / 8, "_Decimal64"); |
7678ef8f | 3461 | builtin_type->builtin_declong |
e9bb382b | 3462 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 128 / 8, "_Decimal128"); |
7678ef8f | 3463 | |
69feb676 | 3464 | /* "True" character types. */ |
e9bb382b UW |
3465 | builtin_type->builtin_true_char |
3466 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 0, "true character"); | |
3467 | builtin_type->builtin_true_unsigned_char | |
3468 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 1, "true character"); | |
69feb676 | 3469 | |
df4df182 | 3470 | /* Fixed-size integer types. */ |
e9bb382b UW |
3471 | builtin_type->builtin_int0 |
3472 | = arch_integer_type (gdbarch, 0, 0, "int0_t"); | |
3473 | builtin_type->builtin_int8 | |
3474 | = arch_integer_type (gdbarch, 8, 0, "int8_t"); | |
3475 | builtin_type->builtin_uint8 | |
3476 | = arch_integer_type (gdbarch, 8, 1, "uint8_t"); | |
3477 | builtin_type->builtin_int16 | |
3478 | = arch_integer_type (gdbarch, 16, 0, "int16_t"); | |
3479 | builtin_type->builtin_uint16 | |
3480 | = arch_integer_type (gdbarch, 16, 1, "uint16_t"); | |
3481 | builtin_type->builtin_int32 | |
3482 | = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
3483 | builtin_type->builtin_uint32 | |
3484 | = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
3485 | builtin_type->builtin_int64 | |
3486 | = arch_integer_type (gdbarch, 64, 0, "int64_t"); | |
3487 | builtin_type->builtin_uint64 | |
3488 | = arch_integer_type (gdbarch, 64, 1, "uint64_t"); | |
3489 | builtin_type->builtin_int128 | |
3490 | = arch_integer_type (gdbarch, 128, 0, "int128_t"); | |
3491 | builtin_type->builtin_uint128 | |
3492 | = arch_integer_type (gdbarch, 128, 1, "uint128_t"); | |
3493 | TYPE_NOTTEXT (builtin_type->builtin_int8) = 1; | |
3494 | TYPE_NOTTEXT (builtin_type->builtin_uint8) = 1; | |
df4df182 | 3495 | |
9a22f0d0 PM |
3496 | /* Wide character types. */ |
3497 | builtin_type->builtin_char16 | |
3498 | = arch_integer_type (gdbarch, 16, 0, "char16_t"); | |
3499 | builtin_type->builtin_char32 | |
3500 | = arch_integer_type (gdbarch, 32, 0, "char32_t"); | |
3501 | ||
3502 | ||
46bf5051 | 3503 | /* Default data/code pointer types. */ |
e9bb382b UW |
3504 | builtin_type->builtin_data_ptr |
3505 | = lookup_pointer_type (builtin_type->builtin_void); | |
3506 | builtin_type->builtin_func_ptr | |
3507 | = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
46bf5051 | 3508 | |
78267919 | 3509 | /* This type represents a GDB internal function. */ |
e9bb382b UW |
3510 | builtin_type->internal_fn |
3511 | = arch_type (gdbarch, TYPE_CODE_INTERNAL_FUNCTION, 0, | |
3512 | "<internal function>"); | |
78267919 | 3513 | |
46bf5051 UW |
3514 | return builtin_type; |
3515 | } | |
3516 | ||
3517 | ||
3518 | /* This set of objfile-based types is intended to be used by symbol | |
3519 | readers as basic types. */ | |
3520 | ||
3521 | static const struct objfile_data *objfile_type_data; | |
3522 | ||
3523 | const struct objfile_type * | |
3524 | objfile_type (struct objfile *objfile) | |
3525 | { | |
3526 | struct gdbarch *gdbarch; | |
3527 | struct objfile_type *objfile_type | |
3528 | = objfile_data (objfile, objfile_type_data); | |
3529 | ||
3530 | if (objfile_type) | |
3531 | return objfile_type; | |
3532 | ||
3533 | objfile_type = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
3534 | 1, struct objfile_type); | |
3535 | ||
3536 | /* Use the objfile architecture to determine basic type properties. */ | |
3537 | gdbarch = get_objfile_arch (objfile); | |
3538 | ||
3539 | /* Basic types. */ | |
3540 | objfile_type->builtin_void | |
3541 | = init_type (TYPE_CODE_VOID, 1, | |
3542 | 0, | |
3543 | "void", objfile); | |
3544 | ||
3545 | objfile_type->builtin_char | |
3546 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3547 | (TYPE_FLAG_NOSIGN | |
3548 | | (gdbarch_char_signed (gdbarch) ? 0 : TYPE_FLAG_UNSIGNED)), | |
3549 | "char", objfile); | |
3550 | objfile_type->builtin_signed_char | |
3551 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3552 | 0, | |
3553 | "signed char", objfile); | |
3554 | objfile_type->builtin_unsigned_char | |
3555 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3556 | TYPE_FLAG_UNSIGNED, | |
3557 | "unsigned char", objfile); | |
3558 | objfile_type->builtin_short | |
3559 | = init_type (TYPE_CODE_INT, | |
3560 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
3561 | 0, "short", objfile); | |
3562 | objfile_type->builtin_unsigned_short | |
3563 | = init_type (TYPE_CODE_INT, | |
3564 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
3565 | TYPE_FLAG_UNSIGNED, "unsigned short", objfile); | |
3566 | objfile_type->builtin_int | |
3567 | = init_type (TYPE_CODE_INT, | |
3568 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
3569 | 0, "int", objfile); | |
3570 | objfile_type->builtin_unsigned_int | |
3571 | = init_type (TYPE_CODE_INT, | |
3572 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
3573 | TYPE_FLAG_UNSIGNED, "unsigned int", objfile); | |
3574 | objfile_type->builtin_long | |
3575 | = init_type (TYPE_CODE_INT, | |
3576 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
3577 | 0, "long", objfile); | |
3578 | objfile_type->builtin_unsigned_long | |
3579 | = init_type (TYPE_CODE_INT, | |
3580 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
3581 | TYPE_FLAG_UNSIGNED, "unsigned long", objfile); | |
3582 | objfile_type->builtin_long_long | |
3583 | = init_type (TYPE_CODE_INT, | |
3584 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
3585 | 0, "long long", objfile); | |
3586 | objfile_type->builtin_unsigned_long_long | |
3587 | = init_type (TYPE_CODE_INT, | |
3588 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
3589 | TYPE_FLAG_UNSIGNED, "unsigned long long", objfile); | |
3590 | ||
3591 | objfile_type->builtin_float | |
3592 | = init_type (TYPE_CODE_FLT, | |
3593 | gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, | |
3594 | 0, "float", objfile); | |
3595 | TYPE_FLOATFORMAT (objfile_type->builtin_float) | |
3596 | = gdbarch_float_format (gdbarch); | |
3597 | objfile_type->builtin_double | |
3598 | = init_type (TYPE_CODE_FLT, | |
3599 | gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
3600 | 0, "double", objfile); | |
3601 | TYPE_FLOATFORMAT (objfile_type->builtin_double) | |
3602 | = gdbarch_double_format (gdbarch); | |
3603 | objfile_type->builtin_long_double | |
3604 | = init_type (TYPE_CODE_FLT, | |
3605 | gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
3606 | 0, "long double", objfile); | |
3607 | TYPE_FLOATFORMAT (objfile_type->builtin_long_double) | |
3608 | = gdbarch_long_double_format (gdbarch); | |
3609 | ||
3610 | /* This type represents a type that was unrecognized in symbol read-in. */ | |
3611 | objfile_type->builtin_error | |
3612 | = init_type (TYPE_CODE_ERROR, 0, 0, "<unknown type>", objfile); | |
3613 | ||
3614 | /* The following set of types is used for symbols with no | |
3615 | debug information. */ | |
3616 | objfile_type->nodebug_text_symbol | |
3617 | = init_type (TYPE_CODE_FUNC, 1, 0, | |
3618 | "<text variable, no debug info>", objfile); | |
3619 | TYPE_TARGET_TYPE (objfile_type->nodebug_text_symbol) | |
3620 | = objfile_type->builtin_int; | |
3621 | objfile_type->nodebug_data_symbol | |
3622 | = init_type (TYPE_CODE_INT, | |
3623 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
3624 | "<data variable, no debug info>", objfile); | |
3625 | objfile_type->nodebug_unknown_symbol | |
3626 | = init_type (TYPE_CODE_INT, 1, 0, | |
3627 | "<variable (not text or data), no debug info>", objfile); | |
3628 | objfile_type->nodebug_tls_symbol | |
3629 | = init_type (TYPE_CODE_INT, | |
3630 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
3631 | "<thread local variable, no debug info>", objfile); | |
000177f0 AC |
3632 | |
3633 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
3634 | the same --- for example, on the D10V, pointers are 16 bits long, | |
3635 | but addresses are 32 bits long. See doc/gdbint.texinfo, | |
3636 | ``Pointers Are Not Always Addresses''. | |
3637 | ||
3638 | The upshot is: | |
3639 | - gdb's `struct type' always describes the target's | |
3640 | representation. | |
3641 | - gdb's `struct value' objects should always hold values in | |
3642 | target form. | |
3643 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
3644 | address space that the assembler and linker work with. Thus, | |
3645 | since target_read_memory takes a CORE_ADDR as an argument, it | |
3646 | can access any memory on the target, even if the processor has | |
3647 | separate code and data address spaces. | |
3648 | ||
3649 | So, for example: | |
3650 | - If v is a value holding a D10V code pointer, its contents are | |
3651 | in target form: a big-endian address left-shifted two bits. | |
3652 | - If p is a D10V pointer type, TYPE_LENGTH (p) == 2, just as | |
3653 | sizeof (void *) == 2 on the target. | |
3654 | ||
46bf5051 UW |
3655 | In this context, objfile_type->builtin_core_addr is a bit odd: |
3656 | it's a target type for a value the target will never see. It's | |
3657 | only used to hold the values of (typeless) linker symbols, which | |
3658 | are indeed in the unified virtual address space. */ | |
000177f0 | 3659 | |
46bf5051 UW |
3660 | objfile_type->builtin_core_addr |
3661 | = init_type (TYPE_CODE_INT, | |
3662 | gdbarch_addr_bit (gdbarch) / 8, | |
3663 | TYPE_FLAG_UNSIGNED, "__CORE_ADDR", objfile); | |
64c50499 | 3664 | |
46bf5051 UW |
3665 | set_objfile_data (objfile, objfile_type_data, objfile_type); |
3666 | return objfile_type; | |
000177f0 AC |
3667 | } |
3668 | ||
46bf5051 | 3669 | |
a14ed312 | 3670 | extern void _initialize_gdbtypes (void); |
c906108c | 3671 | void |
fba45db2 | 3672 | _initialize_gdbtypes (void) |
c906108c | 3673 | { |
5674de60 | 3674 | gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
46bf5051 | 3675 | objfile_type_data = register_objfile_data (); |
5674de60 | 3676 | |
85c07804 AC |
3677 | add_setshow_zinteger_cmd ("overload", no_class, &overload_debug, _("\ |
3678 | Set debugging of C++ overloading."), _("\ | |
3679 | Show debugging of C++ overloading."), _("\ | |
3680 | When enabled, ranking of the functions is displayed."), | |
3681 | NULL, | |
920d2a44 | 3682 | show_overload_debug, |
85c07804 | 3683 | &setdebuglist, &showdebuglist); |
5674de60 | 3684 | |
7ba81444 | 3685 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 UW |
3686 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3687 | &opaque_type_resolution, _("\ | |
3688 | Set resolution of opaque struct/class/union types (if set before loading symbols)."), _("\ | |
3689 | Show resolution of opaque struct/class/union types (if set before loading symbols)."), NULL, | |
3690 | NULL, | |
3691 | show_opaque_type_resolution, | |
3692 | &setlist, &showlist); | |
c906108c | 3693 | } |