Commit | Line | Data |
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c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
4f2aea11 | 2 | |
0b302171 | 3 | Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc. |
4f2aea11 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support, using pieces from other GDB modules. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include "gdb_string.h" | |
24 | #include "bfd.h" | |
25 | #include "symtab.h" | |
26 | #include "symfile.h" | |
27 | #include "objfiles.h" | |
28 | #include "gdbtypes.h" | |
29 | #include "expression.h" | |
30 | #include "language.h" | |
31 | #include "target.h" | |
32 | #include "value.h" | |
33 | #include "demangle.h" | |
34 | #include "complaints.h" | |
35 | #include "gdbcmd.h" | |
015a42b4 | 36 | #include "cp-abi.h" |
a02fd225 | 37 | #include "gdb_assert.h" |
ae5a43e0 | 38 | #include "hashtab.h" |
8e7b59a5 | 39 | #include "exceptions.h" |
ac3aafc7 | 40 | |
6403aeea SW |
41 | /* Initialize BADNESS constants. */ |
42 | ||
a9d5ef47 | 43 | const struct rank LENGTH_MISMATCH_BADNESS = {100,0}; |
6403aeea | 44 | |
a9d5ef47 SW |
45 | const struct rank TOO_FEW_PARAMS_BADNESS = {100,0}; |
46 | const struct rank INCOMPATIBLE_TYPE_BADNESS = {100,0}; | |
6403aeea | 47 | |
a9d5ef47 | 48 | const struct rank EXACT_MATCH_BADNESS = {0,0}; |
6403aeea | 49 | |
a9d5ef47 SW |
50 | const struct rank INTEGER_PROMOTION_BADNESS = {1,0}; |
51 | const struct rank FLOAT_PROMOTION_BADNESS = {1,0}; | |
52 | const struct rank BASE_PTR_CONVERSION_BADNESS = {1,0}; | |
53 | const struct rank INTEGER_CONVERSION_BADNESS = {2,0}; | |
54 | const struct rank FLOAT_CONVERSION_BADNESS = {2,0}; | |
55 | const struct rank INT_FLOAT_CONVERSION_BADNESS = {2,0}; | |
56 | const struct rank VOID_PTR_CONVERSION_BADNESS = {2,0}; | |
57 | const struct rank BOOL_PTR_CONVERSION_BADNESS = {3,0}; | |
58 | const struct rank BASE_CONVERSION_BADNESS = {2,0}; | |
59 | const struct rank REFERENCE_CONVERSION_BADNESS = {2,0}; | |
da096638 | 60 | const struct rank NULL_POINTER_CONVERSION_BADNESS = {2,0}; |
a9d5ef47 | 61 | const struct rank NS_POINTER_CONVERSION_BADNESS = {10,0}; |
6403aeea | 62 | |
8da61cc4 | 63 | /* Floatformat pairs. */ |
f9e9243a UW |
64 | const struct floatformat *floatformats_ieee_half[BFD_ENDIAN_UNKNOWN] = { |
65 | &floatformat_ieee_half_big, | |
66 | &floatformat_ieee_half_little | |
67 | }; | |
8da61cc4 DJ |
68 | const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { |
69 | &floatformat_ieee_single_big, | |
70 | &floatformat_ieee_single_little | |
71 | }; | |
72 | const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { | |
73 | &floatformat_ieee_double_big, | |
74 | &floatformat_ieee_double_little | |
75 | }; | |
76 | const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { | |
77 | &floatformat_ieee_double_big, | |
78 | &floatformat_ieee_double_littlebyte_bigword | |
79 | }; | |
80 | const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { | |
81 | &floatformat_i387_ext, | |
82 | &floatformat_i387_ext | |
83 | }; | |
84 | const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { | |
85 | &floatformat_m68881_ext, | |
86 | &floatformat_m68881_ext | |
87 | }; | |
88 | const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { | |
89 | &floatformat_arm_ext_big, | |
90 | &floatformat_arm_ext_littlebyte_bigword | |
91 | }; | |
92 | const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { | |
93 | &floatformat_ia64_spill_big, | |
94 | &floatformat_ia64_spill_little | |
95 | }; | |
96 | const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = { | |
97 | &floatformat_ia64_quad_big, | |
98 | &floatformat_ia64_quad_little | |
99 | }; | |
100 | const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { | |
101 | &floatformat_vax_f, | |
102 | &floatformat_vax_f | |
103 | }; | |
104 | const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { | |
105 | &floatformat_vax_d, | |
106 | &floatformat_vax_d | |
107 | }; | |
b14d30e1 JM |
108 | const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { |
109 | &floatformat_ibm_long_double, | |
110 | &floatformat_ibm_long_double | |
111 | }; | |
8da61cc4 | 112 | |
8da61cc4 | 113 | |
c906108c | 114 | int opaque_type_resolution = 1; |
920d2a44 AC |
115 | static void |
116 | show_opaque_type_resolution (struct ui_file *file, int from_tty, | |
7ba81444 MS |
117 | struct cmd_list_element *c, |
118 | const char *value) | |
920d2a44 | 119 | { |
3e43a32a MS |
120 | fprintf_filtered (file, _("Resolution of opaque struct/class/union types " |
121 | "(if set before loading symbols) is %s.\n"), | |
920d2a44 AC |
122 | value); |
123 | } | |
124 | ||
5d161b24 | 125 | int overload_debug = 0; |
920d2a44 AC |
126 | static void |
127 | show_overload_debug (struct ui_file *file, int from_tty, | |
128 | struct cmd_list_element *c, const char *value) | |
129 | { | |
7ba81444 MS |
130 | fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"), |
131 | value); | |
920d2a44 | 132 | } |
c906108c | 133 | |
c5aa993b JM |
134 | struct extra |
135 | { | |
136 | char str[128]; | |
137 | int len; | |
7ba81444 | 138 | }; /* Maximum extension is 128! FIXME */ |
c906108c | 139 | |
a14ed312 | 140 | static void print_bit_vector (B_TYPE *, int); |
ad2f7632 | 141 | static void print_arg_types (struct field *, int, int); |
a14ed312 KB |
142 | static void dump_fn_fieldlists (struct type *, int); |
143 | static void print_cplus_stuff (struct type *, int); | |
7a292a7a | 144 | |
c906108c | 145 | |
e9bb382b UW |
146 | /* Allocate a new OBJFILE-associated type structure and fill it |
147 | with some defaults. Space for the type structure is allocated | |
148 | on the objfile's objfile_obstack. */ | |
c906108c SS |
149 | |
150 | struct type * | |
fba45db2 | 151 | alloc_type (struct objfile *objfile) |
c906108c | 152 | { |
52f0bd74 | 153 | struct type *type; |
c906108c | 154 | |
e9bb382b UW |
155 | gdb_assert (objfile != NULL); |
156 | ||
7ba81444 | 157 | /* Alloc the structure and start off with all fields zeroed. */ |
e9bb382b UW |
158 | type = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct type); |
159 | TYPE_MAIN_TYPE (type) = OBSTACK_ZALLOC (&objfile->objfile_obstack, | |
160 | struct main_type); | |
161 | OBJSTAT (objfile, n_types++); | |
c906108c | 162 | |
e9bb382b UW |
163 | TYPE_OBJFILE_OWNED (type) = 1; |
164 | TYPE_OWNER (type).objfile = objfile; | |
c906108c | 165 | |
7ba81444 | 166 | /* Initialize the fields that might not be zero. */ |
c906108c SS |
167 | |
168 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
c906108c | 169 | TYPE_VPTR_FIELDNO (type) = -1; |
2fdde8f8 | 170 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
c906108c | 171 | |
c16abbde | 172 | return type; |
c906108c SS |
173 | } |
174 | ||
e9bb382b UW |
175 | /* Allocate a new GDBARCH-associated type structure and fill it |
176 | with some defaults. Space for the type structure is allocated | |
177 | on the heap. */ | |
178 | ||
179 | struct type * | |
180 | alloc_type_arch (struct gdbarch *gdbarch) | |
181 | { | |
182 | struct type *type; | |
183 | ||
184 | gdb_assert (gdbarch != NULL); | |
185 | ||
186 | /* Alloc the structure and start off with all fields zeroed. */ | |
187 | ||
188 | type = XZALLOC (struct type); | |
189 | TYPE_MAIN_TYPE (type) = XZALLOC (struct main_type); | |
190 | ||
191 | TYPE_OBJFILE_OWNED (type) = 0; | |
192 | TYPE_OWNER (type).gdbarch = gdbarch; | |
193 | ||
194 | /* Initialize the fields that might not be zero. */ | |
195 | ||
196 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
197 | TYPE_VPTR_FIELDNO (type) = -1; | |
198 | TYPE_CHAIN (type) = type; /* Chain back to itself. */ | |
199 | ||
200 | return type; | |
201 | } | |
202 | ||
203 | /* If TYPE is objfile-associated, allocate a new type structure | |
204 | associated with the same objfile. If TYPE is gdbarch-associated, | |
205 | allocate a new type structure associated with the same gdbarch. */ | |
206 | ||
207 | struct type * | |
208 | alloc_type_copy (const struct type *type) | |
209 | { | |
210 | if (TYPE_OBJFILE_OWNED (type)) | |
211 | return alloc_type (TYPE_OWNER (type).objfile); | |
212 | else | |
213 | return alloc_type_arch (TYPE_OWNER (type).gdbarch); | |
214 | } | |
215 | ||
216 | /* If TYPE is gdbarch-associated, return that architecture. | |
217 | If TYPE is objfile-associated, return that objfile's architecture. */ | |
218 | ||
219 | struct gdbarch * | |
220 | get_type_arch (const struct type *type) | |
221 | { | |
222 | if (TYPE_OBJFILE_OWNED (type)) | |
223 | return get_objfile_arch (TYPE_OWNER (type).objfile); | |
224 | else | |
225 | return TYPE_OWNER (type).gdbarch; | |
226 | } | |
227 | ||
228 | ||
2fdde8f8 DJ |
229 | /* Alloc a new type instance structure, fill it with some defaults, |
230 | and point it at OLDTYPE. Allocate the new type instance from the | |
231 | same place as OLDTYPE. */ | |
232 | ||
233 | static struct type * | |
234 | alloc_type_instance (struct type *oldtype) | |
235 | { | |
236 | struct type *type; | |
237 | ||
238 | /* Allocate the structure. */ | |
239 | ||
e9bb382b | 240 | if (! TYPE_OBJFILE_OWNED (oldtype)) |
1deafd4e | 241 | type = XZALLOC (struct type); |
2fdde8f8 | 242 | else |
1deafd4e PA |
243 | type = OBSTACK_ZALLOC (&TYPE_OBJFILE (oldtype)->objfile_obstack, |
244 | struct type); | |
245 | ||
2fdde8f8 DJ |
246 | TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype); |
247 | ||
248 | TYPE_CHAIN (type) = type; /* Chain back to itself for now. */ | |
249 | ||
c16abbde | 250 | return type; |
2fdde8f8 DJ |
251 | } |
252 | ||
253 | /* Clear all remnants of the previous type at TYPE, in preparation for | |
e9bb382b | 254 | replacing it with something else. Preserve owner information. */ |
2fdde8f8 DJ |
255 | static void |
256 | smash_type (struct type *type) | |
257 | { | |
e9bb382b UW |
258 | int objfile_owned = TYPE_OBJFILE_OWNED (type); |
259 | union type_owner owner = TYPE_OWNER (type); | |
260 | ||
2fdde8f8 DJ |
261 | memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
262 | ||
e9bb382b UW |
263 | /* Restore owner information. */ |
264 | TYPE_OBJFILE_OWNED (type) = objfile_owned; | |
265 | TYPE_OWNER (type) = owner; | |
266 | ||
2fdde8f8 DJ |
267 | /* For now, delete the rings. */ |
268 | TYPE_CHAIN (type) = type; | |
269 | ||
270 | /* For now, leave the pointer/reference types alone. */ | |
271 | } | |
272 | ||
c906108c SS |
273 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
274 | to a pointer to memory where the pointer type should be stored. | |
275 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
276 | We allocate new memory if needed. */ | |
277 | ||
278 | struct type * | |
fba45db2 | 279 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 280 | { |
52f0bd74 | 281 | struct type *ntype; /* New type */ |
053cb41b | 282 | struct type *chain; |
c906108c SS |
283 | |
284 | ntype = TYPE_POINTER_TYPE (type); | |
285 | ||
c5aa993b | 286 | if (ntype) |
c906108c | 287 | { |
c5aa993b | 288 | if (typeptr == 0) |
7ba81444 MS |
289 | return ntype; /* Don't care about alloc, |
290 | and have new type. */ | |
c906108c | 291 | else if (*typeptr == 0) |
c5aa993b | 292 | { |
7ba81444 | 293 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 294 | return ntype; |
c5aa993b | 295 | } |
c906108c SS |
296 | } |
297 | ||
298 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
299 | { | |
e9bb382b | 300 | ntype = alloc_type_copy (type); |
c906108c SS |
301 | if (typeptr) |
302 | *typeptr = ntype; | |
303 | } | |
7ba81444 | 304 | else /* We have storage, but need to reset it. */ |
c906108c SS |
305 | { |
306 | ntype = *typeptr; | |
053cb41b | 307 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 308 | smash_type (ntype); |
053cb41b | 309 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
310 | } |
311 | ||
312 | TYPE_TARGET_TYPE (ntype) = type; | |
313 | TYPE_POINTER_TYPE (type) = ntype; | |
314 | ||
7ba81444 MS |
315 | /* FIXME! Assume the machine has only one representation for |
316 | pointers! */ | |
c906108c | 317 | |
50810684 UW |
318 | TYPE_LENGTH (ntype) |
319 | = gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c SS |
320 | TYPE_CODE (ntype) = TYPE_CODE_PTR; |
321 | ||
67b2adb2 | 322 | /* Mark pointers as unsigned. The target converts between pointers |
76e71323 | 323 | and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and |
7ba81444 | 324 | gdbarch_address_to_pointer. */ |
876cecd0 | 325 | TYPE_UNSIGNED (ntype) = 1; |
c5aa993b | 326 | |
c906108c SS |
327 | if (!TYPE_POINTER_TYPE (type)) /* Remember it, if don't have one. */ |
328 | TYPE_POINTER_TYPE (type) = ntype; | |
329 | ||
053cb41b JB |
330 | /* Update the length of all the other variants of this type. */ |
331 | chain = TYPE_CHAIN (ntype); | |
332 | while (chain != ntype) | |
333 | { | |
334 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
335 | chain = TYPE_CHAIN (chain); | |
336 | } | |
337 | ||
c906108c SS |
338 | return ntype; |
339 | } | |
340 | ||
341 | /* Given a type TYPE, return a type of pointers to that type. | |
342 | May need to construct such a type if this is the first use. */ | |
343 | ||
344 | struct type * | |
fba45db2 | 345 | lookup_pointer_type (struct type *type) |
c906108c | 346 | { |
c5aa993b | 347 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
348 | } |
349 | ||
7ba81444 MS |
350 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, |
351 | points to a pointer to memory where the reference type should be | |
352 | stored. If *TYPEPTR is zero, update it to point to the reference | |
353 | type we return. We allocate new memory if needed. */ | |
c906108c SS |
354 | |
355 | struct type * | |
fba45db2 | 356 | make_reference_type (struct type *type, struct type **typeptr) |
c906108c | 357 | { |
52f0bd74 | 358 | struct type *ntype; /* New type */ |
1e98b326 | 359 | struct type *chain; |
c906108c SS |
360 | |
361 | ntype = TYPE_REFERENCE_TYPE (type); | |
362 | ||
c5aa993b | 363 | if (ntype) |
c906108c | 364 | { |
c5aa993b | 365 | if (typeptr == 0) |
7ba81444 MS |
366 | return ntype; /* Don't care about alloc, |
367 | and have new type. */ | |
c906108c | 368 | else if (*typeptr == 0) |
c5aa993b | 369 | { |
7ba81444 | 370 | *typeptr = ntype; /* Tracking alloc, and have new type. */ |
c906108c | 371 | return ntype; |
c5aa993b | 372 | } |
c906108c SS |
373 | } |
374 | ||
375 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
376 | { | |
e9bb382b | 377 | ntype = alloc_type_copy (type); |
c906108c SS |
378 | if (typeptr) |
379 | *typeptr = ntype; | |
380 | } | |
7ba81444 | 381 | else /* We have storage, but need to reset it. */ |
c906108c SS |
382 | { |
383 | ntype = *typeptr; | |
1e98b326 | 384 | chain = TYPE_CHAIN (ntype); |
2fdde8f8 | 385 | smash_type (ntype); |
1e98b326 | 386 | TYPE_CHAIN (ntype) = chain; |
c906108c SS |
387 | } |
388 | ||
389 | TYPE_TARGET_TYPE (ntype) = type; | |
390 | TYPE_REFERENCE_TYPE (type) = ntype; | |
391 | ||
7ba81444 MS |
392 | /* FIXME! Assume the machine has only one representation for |
393 | references, and that it matches the (only) representation for | |
394 | pointers! */ | |
c906108c | 395 | |
50810684 UW |
396 | TYPE_LENGTH (ntype) = |
397 | gdbarch_ptr_bit (get_type_arch (type)) / TARGET_CHAR_BIT; | |
c906108c | 398 | TYPE_CODE (ntype) = TYPE_CODE_REF; |
c5aa993b | 399 | |
c906108c SS |
400 | if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */ |
401 | TYPE_REFERENCE_TYPE (type) = ntype; | |
402 | ||
1e98b326 JB |
403 | /* Update the length of all the other variants of this type. */ |
404 | chain = TYPE_CHAIN (ntype); | |
405 | while (chain != ntype) | |
406 | { | |
407 | TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); | |
408 | chain = TYPE_CHAIN (chain); | |
409 | } | |
410 | ||
c906108c SS |
411 | return ntype; |
412 | } | |
413 | ||
7ba81444 MS |
414 | /* Same as above, but caller doesn't care about memory allocation |
415 | details. */ | |
c906108c SS |
416 | |
417 | struct type * | |
fba45db2 | 418 | lookup_reference_type (struct type *type) |
c906108c | 419 | { |
c5aa993b | 420 | return make_reference_type (type, (struct type **) 0); |
c906108c SS |
421 | } |
422 | ||
7ba81444 MS |
423 | /* Lookup a function type that returns type TYPE. TYPEPTR, if |
424 | nonzero, points to a pointer to memory where the function type | |
425 | should be stored. If *TYPEPTR is zero, update it to point to the | |
0c8b41f1 | 426 | function type we return. We allocate new memory if needed. */ |
c906108c SS |
427 | |
428 | struct type * | |
0c8b41f1 | 429 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 430 | { |
52f0bd74 | 431 | struct type *ntype; /* New type */ |
c906108c SS |
432 | |
433 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
434 | { | |
e9bb382b | 435 | ntype = alloc_type_copy (type); |
c906108c SS |
436 | if (typeptr) |
437 | *typeptr = ntype; | |
438 | } | |
7ba81444 | 439 | else /* We have storage, but need to reset it. */ |
c906108c SS |
440 | { |
441 | ntype = *typeptr; | |
2fdde8f8 | 442 | smash_type (ntype); |
c906108c SS |
443 | } |
444 | ||
445 | TYPE_TARGET_TYPE (ntype) = type; | |
446 | ||
447 | TYPE_LENGTH (ntype) = 1; | |
448 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
c5aa993b | 449 | |
b6cdc2c1 JK |
450 | INIT_FUNC_SPECIFIC (ntype); |
451 | ||
c906108c SS |
452 | return ntype; |
453 | } | |
454 | ||
455 | ||
456 | /* Given a type TYPE, return a type of functions that return that type. | |
457 | May need to construct such a type if this is the first use. */ | |
458 | ||
459 | struct type * | |
fba45db2 | 460 | lookup_function_type (struct type *type) |
c906108c | 461 | { |
0c8b41f1 | 462 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
463 | } |
464 | ||
71918a86 | 465 | /* Given a type TYPE and argument types, return the appropriate |
a6fb9c08 TT |
466 | function type. If the final type in PARAM_TYPES is NULL, make a |
467 | varargs function. */ | |
71918a86 TT |
468 | |
469 | struct type * | |
470 | lookup_function_type_with_arguments (struct type *type, | |
471 | int nparams, | |
472 | struct type **param_types) | |
473 | { | |
474 | struct type *fn = make_function_type (type, (struct type **) 0); | |
475 | int i; | |
476 | ||
a6fb9c08 TT |
477 | if (nparams > 0 && param_types[nparams - 1] == NULL) |
478 | { | |
479 | --nparams; | |
480 | TYPE_VARARGS (fn) = 1; | |
481 | } | |
482 | ||
71918a86 TT |
483 | TYPE_NFIELDS (fn) = nparams; |
484 | TYPE_FIELDS (fn) = TYPE_ZALLOC (fn, nparams * sizeof (struct field)); | |
485 | for (i = 0; i < nparams; ++i) | |
486 | TYPE_FIELD_TYPE (fn, i) = param_types[i]; | |
487 | ||
488 | return fn; | |
489 | } | |
490 | ||
47663de5 MS |
491 | /* Identify address space identifier by name -- |
492 | return the integer flag defined in gdbtypes.h. */ | |
493 | extern int | |
50810684 | 494 | address_space_name_to_int (struct gdbarch *gdbarch, char *space_identifier) |
47663de5 | 495 | { |
8b2dbe47 | 496 | int type_flags; |
d8734c88 | 497 | |
7ba81444 | 498 | /* Check for known address space delimiters. */ |
47663de5 | 499 | if (!strcmp (space_identifier, "code")) |
876cecd0 | 500 | return TYPE_INSTANCE_FLAG_CODE_SPACE; |
47663de5 | 501 | else if (!strcmp (space_identifier, "data")) |
876cecd0 | 502 | return TYPE_INSTANCE_FLAG_DATA_SPACE; |
5f11f355 AC |
503 | else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
504 | && gdbarch_address_class_name_to_type_flags (gdbarch, | |
505 | space_identifier, | |
506 | &type_flags)) | |
8b2dbe47 | 507 | return type_flags; |
47663de5 | 508 | else |
8a3fe4f8 | 509 | error (_("Unknown address space specifier: \"%s\""), space_identifier); |
47663de5 MS |
510 | } |
511 | ||
512 | /* Identify address space identifier by integer flag as defined in | |
7ba81444 | 513 | gdbtypes.h -- return the string version of the adress space name. */ |
47663de5 | 514 | |
321432c0 | 515 | const char * |
50810684 | 516 | address_space_int_to_name (struct gdbarch *gdbarch, int space_flag) |
47663de5 | 517 | { |
876cecd0 | 518 | if (space_flag & TYPE_INSTANCE_FLAG_CODE_SPACE) |
47663de5 | 519 | return "code"; |
876cecd0 | 520 | else if (space_flag & TYPE_INSTANCE_FLAG_DATA_SPACE) |
47663de5 | 521 | return "data"; |
876cecd0 | 522 | else if ((space_flag & TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL) |
5f11f355 AC |
523 | && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
524 | return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); | |
47663de5 MS |
525 | else |
526 | return NULL; | |
527 | } | |
528 | ||
2fdde8f8 | 529 | /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
ad766c0a JB |
530 | |
531 | If STORAGE is non-NULL, create the new type instance there. | |
532 | STORAGE must be in the same obstack as TYPE. */ | |
47663de5 | 533 | |
b9362cc7 | 534 | static struct type * |
2fdde8f8 DJ |
535 | make_qualified_type (struct type *type, int new_flags, |
536 | struct type *storage) | |
47663de5 MS |
537 | { |
538 | struct type *ntype; | |
539 | ||
540 | ntype = type; | |
5f61c20e JK |
541 | do |
542 | { | |
543 | if (TYPE_INSTANCE_FLAGS (ntype) == new_flags) | |
544 | return ntype; | |
545 | ntype = TYPE_CHAIN (ntype); | |
546 | } | |
547 | while (ntype != type); | |
47663de5 | 548 | |
2fdde8f8 DJ |
549 | /* Create a new type instance. */ |
550 | if (storage == NULL) | |
551 | ntype = alloc_type_instance (type); | |
552 | else | |
553 | { | |
7ba81444 MS |
554 | /* If STORAGE was provided, it had better be in the same objfile |
555 | as TYPE. Otherwise, we can't link it into TYPE's cv chain: | |
556 | if one objfile is freed and the other kept, we'd have | |
557 | dangling pointers. */ | |
ad766c0a JB |
558 | gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage)); |
559 | ||
2fdde8f8 DJ |
560 | ntype = storage; |
561 | TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); | |
562 | TYPE_CHAIN (ntype) = ntype; | |
563 | } | |
47663de5 MS |
564 | |
565 | /* Pointers or references to the original type are not relevant to | |
2fdde8f8 | 566 | the new type. */ |
47663de5 MS |
567 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
568 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
47663de5 | 569 | |
2fdde8f8 DJ |
570 | /* Chain the new qualified type to the old type. */ |
571 | TYPE_CHAIN (ntype) = TYPE_CHAIN (type); | |
572 | TYPE_CHAIN (type) = ntype; | |
573 | ||
574 | /* Now set the instance flags and return the new type. */ | |
575 | TYPE_INSTANCE_FLAGS (ntype) = new_flags; | |
47663de5 | 576 | |
ab5d3da6 KB |
577 | /* Set length of new type to that of the original type. */ |
578 | TYPE_LENGTH (ntype) = TYPE_LENGTH (type); | |
579 | ||
47663de5 MS |
580 | return ntype; |
581 | } | |
582 | ||
2fdde8f8 DJ |
583 | /* Make an address-space-delimited variant of a type -- a type that |
584 | is identical to the one supplied except that it has an address | |
585 | space attribute attached to it (such as "code" or "data"). | |
586 | ||
7ba81444 MS |
587 | The space attributes "code" and "data" are for Harvard |
588 | architectures. The address space attributes are for architectures | |
589 | which have alternately sized pointers or pointers with alternate | |
590 | representations. */ | |
2fdde8f8 DJ |
591 | |
592 | struct type * | |
593 | make_type_with_address_space (struct type *type, int space_flag) | |
594 | { | |
2fdde8f8 | 595 | int new_flags = ((TYPE_INSTANCE_FLAGS (type) |
876cecd0 TT |
596 | & ~(TYPE_INSTANCE_FLAG_CODE_SPACE |
597 | | TYPE_INSTANCE_FLAG_DATA_SPACE | |
598 | | TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL)) | |
2fdde8f8 DJ |
599 | | space_flag); |
600 | ||
601 | return make_qualified_type (type, new_flags, NULL); | |
602 | } | |
c906108c SS |
603 | |
604 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
605 | one supplied except that it may have const or volatile attributes | |
606 | CNST is a flag for setting the const attribute | |
607 | VOLTL is a flag for setting the volatile attribute | |
608 | TYPE is the base type whose variant we are creating. | |
c906108c | 609 | |
ad766c0a JB |
610 | If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to |
611 | storage to hold the new qualified type; *TYPEPTR and TYPE must be | |
612 | in the same objfile. Otherwise, allocate fresh memory for the new | |
613 | type whereever TYPE lives. If TYPEPTR is non-zero, set it to the | |
614 | new type we construct. */ | |
c906108c | 615 | struct type * |
7ba81444 MS |
616 | make_cv_type (int cnst, int voltl, |
617 | struct type *type, | |
618 | struct type **typeptr) | |
c906108c | 619 | { |
52f0bd74 | 620 | struct type *ntype; /* New type */ |
c906108c | 621 | |
2fdde8f8 | 622 | int new_flags = (TYPE_INSTANCE_FLAGS (type) |
308d96ed MS |
623 | & ~(TYPE_INSTANCE_FLAG_CONST |
624 | | TYPE_INSTANCE_FLAG_VOLATILE)); | |
c906108c | 625 | |
c906108c | 626 | if (cnst) |
876cecd0 | 627 | new_flags |= TYPE_INSTANCE_FLAG_CONST; |
c906108c SS |
628 | |
629 | if (voltl) | |
876cecd0 | 630 | new_flags |= TYPE_INSTANCE_FLAG_VOLATILE; |
a02fd225 | 631 | |
2fdde8f8 | 632 | if (typeptr && *typeptr != NULL) |
a02fd225 | 633 | { |
ad766c0a JB |
634 | /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
635 | a C-V variant chain that threads across objfiles: if one | |
636 | objfile gets freed, then the other has a broken C-V chain. | |
637 | ||
638 | This code used to try to copy over the main type from TYPE to | |
639 | *TYPEPTR if they were in different objfiles, but that's | |
640 | wrong, too: TYPE may have a field list or member function | |
641 | lists, which refer to types of their own, etc. etc. The | |
642 | whole shebang would need to be copied over recursively; you | |
643 | can't have inter-objfile pointers. The only thing to do is | |
644 | to leave stub types as stub types, and look them up afresh by | |
645 | name each time you encounter them. */ | |
646 | gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type)); | |
2fdde8f8 DJ |
647 | } |
648 | ||
7ba81444 MS |
649 | ntype = make_qualified_type (type, new_flags, |
650 | typeptr ? *typeptr : NULL); | |
c906108c | 651 | |
2fdde8f8 DJ |
652 | if (typeptr != NULL) |
653 | *typeptr = ntype; | |
a02fd225 | 654 | |
2fdde8f8 | 655 | return ntype; |
a02fd225 | 656 | } |
c906108c | 657 | |
2fdde8f8 DJ |
658 | /* Replace the contents of ntype with the type *type. This changes the |
659 | contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus | |
660 | the changes are propogated to all types in the TYPE_CHAIN. | |
dd6bda65 | 661 | |
cda6c68a JB |
662 | In order to build recursive types, it's inevitable that we'll need |
663 | to update types in place --- but this sort of indiscriminate | |
664 | smashing is ugly, and needs to be replaced with something more | |
2fdde8f8 DJ |
665 | controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
666 | clear if more steps are needed. */ | |
dd6bda65 DJ |
667 | void |
668 | replace_type (struct type *ntype, struct type *type) | |
669 | { | |
ab5d3da6 | 670 | struct type *chain; |
dd6bda65 | 671 | |
ad766c0a JB |
672 | /* These two types had better be in the same objfile. Otherwise, |
673 | the assignment of one type's main type structure to the other | |
674 | will produce a type with references to objects (names; field | |
675 | lists; etc.) allocated on an objfile other than its own. */ | |
676 | gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (ntype)); | |
677 | ||
2fdde8f8 | 678 | *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
dd6bda65 | 679 | |
7ba81444 MS |
680 | /* The type length is not a part of the main type. Update it for |
681 | each type on the variant chain. */ | |
ab5d3da6 | 682 | chain = ntype; |
5f61c20e JK |
683 | do |
684 | { | |
685 | /* Assert that this element of the chain has no address-class bits | |
686 | set in its flags. Such type variants might have type lengths | |
687 | which are supposed to be different from the non-address-class | |
688 | variants. This assertion shouldn't ever be triggered because | |
689 | symbol readers which do construct address-class variants don't | |
690 | call replace_type(). */ | |
691 | gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); | |
692 | ||
693 | TYPE_LENGTH (chain) = TYPE_LENGTH (type); | |
694 | chain = TYPE_CHAIN (chain); | |
695 | } | |
696 | while (ntype != chain); | |
ab5d3da6 | 697 | |
2fdde8f8 DJ |
698 | /* Assert that the two types have equivalent instance qualifiers. |
699 | This should be true for at least all of our debug readers. */ | |
700 | gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type)); | |
dd6bda65 DJ |
701 | } |
702 | ||
c906108c SS |
703 | /* Implement direct support for MEMBER_TYPE in GNU C++. |
704 | May need to construct such a type if this is the first use. | |
705 | The TYPE is the type of the member. The DOMAIN is the type | |
706 | of the aggregate that the member belongs to. */ | |
707 | ||
708 | struct type * | |
0d5de010 | 709 | lookup_memberptr_type (struct type *type, struct type *domain) |
c906108c | 710 | { |
52f0bd74 | 711 | struct type *mtype; |
c906108c | 712 | |
e9bb382b | 713 | mtype = alloc_type_copy (type); |
0d5de010 | 714 | smash_to_memberptr_type (mtype, domain, type); |
c16abbde | 715 | return mtype; |
c906108c SS |
716 | } |
717 | ||
0d5de010 DJ |
718 | /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
719 | ||
720 | struct type * | |
721 | lookup_methodptr_type (struct type *to_type) | |
722 | { | |
723 | struct type *mtype; | |
724 | ||
e9bb382b | 725 | mtype = alloc_type_copy (to_type); |
0b92b5bb | 726 | smash_to_methodptr_type (mtype, to_type); |
0d5de010 DJ |
727 | return mtype; |
728 | } | |
729 | ||
7ba81444 MS |
730 | /* Allocate a stub method whose return type is TYPE. This apparently |
731 | happens for speed of symbol reading, since parsing out the | |
732 | arguments to the method is cpu-intensive, the way we are doing it. | |
733 | So, we will fill in arguments later. This always returns a fresh | |
734 | type. */ | |
c906108c SS |
735 | |
736 | struct type * | |
fba45db2 | 737 | allocate_stub_method (struct type *type) |
c906108c SS |
738 | { |
739 | struct type *mtype; | |
740 | ||
e9bb382b UW |
741 | mtype = alloc_type_copy (type); |
742 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; | |
743 | TYPE_LENGTH (mtype) = 1; | |
744 | TYPE_STUB (mtype) = 1; | |
c906108c SS |
745 | TYPE_TARGET_TYPE (mtype) = type; |
746 | /* _DOMAIN_TYPE (mtype) = unknown yet */ | |
c16abbde | 747 | return mtype; |
c906108c SS |
748 | } |
749 | ||
7ba81444 MS |
750 | /* Create a range type using either a blank type supplied in |
751 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
752 | INDEX_TYPE. | |
c906108c | 753 | |
7ba81444 MS |
754 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND |
755 | to HIGH_BOUND, inclusive. | |
c906108c | 756 | |
7ba81444 MS |
757 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
758 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
c906108c SS |
759 | |
760 | struct type * | |
fba45db2 | 761 | create_range_type (struct type *result_type, struct type *index_type, |
43bbcdc2 | 762 | LONGEST low_bound, LONGEST high_bound) |
c906108c SS |
763 | { |
764 | if (result_type == NULL) | |
e9bb382b | 765 | result_type = alloc_type_copy (index_type); |
c906108c SS |
766 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; |
767 | TYPE_TARGET_TYPE (result_type) = index_type; | |
74a9bb82 | 768 | if (TYPE_STUB (index_type)) |
876cecd0 | 769 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c SS |
770 | else |
771 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
43bbcdc2 PH |
772 | TYPE_RANGE_DATA (result_type) = (struct range_bounds *) |
773 | TYPE_ZALLOC (result_type, sizeof (struct range_bounds)); | |
262452ec JK |
774 | TYPE_LOW_BOUND (result_type) = low_bound; |
775 | TYPE_HIGH_BOUND (result_type) = high_bound; | |
c906108c | 776 | |
c5aa993b | 777 | if (low_bound >= 0) |
876cecd0 | 778 | TYPE_UNSIGNED (result_type) = 1; |
c906108c | 779 | |
262452ec | 780 | return result_type; |
c906108c SS |
781 | } |
782 | ||
7ba81444 MS |
783 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
784 | TYPE. Return 1 if type is a range type, 0 if it is discrete (and | |
785 | bounds will fit in LONGEST), or -1 otherwise. */ | |
c906108c SS |
786 | |
787 | int | |
fba45db2 | 788 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c SS |
789 | { |
790 | CHECK_TYPEDEF (type); | |
791 | switch (TYPE_CODE (type)) | |
792 | { | |
793 | case TYPE_CODE_RANGE: | |
794 | *lowp = TYPE_LOW_BOUND (type); | |
795 | *highp = TYPE_HIGH_BOUND (type); | |
796 | return 1; | |
797 | case TYPE_CODE_ENUM: | |
798 | if (TYPE_NFIELDS (type) > 0) | |
799 | { | |
800 | /* The enums may not be sorted by value, so search all | |
0963b4bd | 801 | entries. */ |
c906108c SS |
802 | int i; |
803 | ||
14e75d8e | 804 | *lowp = *highp = TYPE_FIELD_ENUMVAL (type, 0); |
c906108c SS |
805 | for (i = 0; i < TYPE_NFIELDS (type); i++) |
806 | { | |
14e75d8e JK |
807 | if (TYPE_FIELD_ENUMVAL (type, i) < *lowp) |
808 | *lowp = TYPE_FIELD_ENUMVAL (type, i); | |
809 | if (TYPE_FIELD_ENUMVAL (type, i) > *highp) | |
810 | *highp = TYPE_FIELD_ENUMVAL (type, i); | |
c906108c SS |
811 | } |
812 | ||
7ba81444 | 813 | /* Set unsigned indicator if warranted. */ |
c5aa993b | 814 | if (*lowp >= 0) |
c906108c | 815 | { |
876cecd0 | 816 | TYPE_UNSIGNED (type) = 1; |
c906108c SS |
817 | } |
818 | } | |
819 | else | |
820 | { | |
821 | *lowp = 0; | |
822 | *highp = -1; | |
823 | } | |
824 | return 0; | |
825 | case TYPE_CODE_BOOL: | |
826 | *lowp = 0; | |
827 | *highp = 1; | |
828 | return 0; | |
829 | case TYPE_CODE_INT: | |
c5aa993b | 830 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
831 | return -1; |
832 | if (!TYPE_UNSIGNED (type)) | |
833 | { | |
c5aa993b | 834 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
835 | *highp = -*lowp - 1; |
836 | return 0; | |
837 | } | |
7ba81444 | 838 | /* ... fall through for unsigned ints ... */ |
c906108c SS |
839 | case TYPE_CODE_CHAR: |
840 | *lowp = 0; | |
841 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 | 842 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
7ba81444 | 843 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
c906108c SS |
844 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
845 | *highp = (*highp - 1) | *highp; | |
846 | return 0; | |
847 | default: | |
848 | return -1; | |
849 | } | |
850 | } | |
851 | ||
dbc98a8b KW |
852 | /* Assuming TYPE is a simple, non-empty array type, compute its upper |
853 | and lower bound. Save the low bound into LOW_BOUND if not NULL. | |
854 | Save the high bound into HIGH_BOUND if not NULL. | |
855 | ||
0963b4bd | 856 | Return 1 if the operation was successful. Return zero otherwise, |
dbc98a8b KW |
857 | in which case the values of LOW_BOUND and HIGH_BOUNDS are unmodified. |
858 | ||
859 | We now simply use get_discrete_bounds call to get the values | |
860 | of the low and high bounds. | |
861 | get_discrete_bounds can return three values: | |
862 | 1, meaning that index is a range, | |
863 | 0, meaning that index is a discrete type, | |
864 | or -1 for failure. */ | |
865 | ||
866 | int | |
867 | get_array_bounds (struct type *type, LONGEST *low_bound, LONGEST *high_bound) | |
868 | { | |
869 | struct type *index = TYPE_INDEX_TYPE (type); | |
870 | LONGEST low = 0; | |
871 | LONGEST high = 0; | |
872 | int res; | |
873 | ||
874 | if (index == NULL) | |
875 | return 0; | |
876 | ||
877 | res = get_discrete_bounds (index, &low, &high); | |
878 | if (res == -1) | |
879 | return 0; | |
880 | ||
881 | /* Check if the array bounds are undefined. */ | |
882 | if (res == 1 | |
883 | && ((low_bound && TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED (type)) | |
884 | || (high_bound && TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type)))) | |
885 | return 0; | |
886 | ||
887 | if (low_bound) | |
888 | *low_bound = low; | |
889 | ||
890 | if (high_bound) | |
891 | *high_bound = high; | |
892 | ||
893 | return 1; | |
894 | } | |
895 | ||
7ba81444 MS |
896 | /* Create an array type using either a blank type supplied in |
897 | RESULT_TYPE, or creating a new type, inheriting the objfile from | |
898 | RANGE_TYPE. | |
c906108c SS |
899 | |
900 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
901 | RANGE_TYPE. | |
902 | ||
7ba81444 MS |
903 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
904 | sure it is TYPE_CODE_UNDEF before we bash it into an array | |
905 | type? */ | |
c906108c SS |
906 | |
907 | struct type * | |
7ba81444 MS |
908 | create_array_type (struct type *result_type, |
909 | struct type *element_type, | |
fba45db2 | 910 | struct type *range_type) |
c906108c SS |
911 | { |
912 | LONGEST low_bound, high_bound; | |
913 | ||
914 | if (result_type == NULL) | |
e9bb382b UW |
915 | result_type = alloc_type_copy (range_type); |
916 | ||
c906108c SS |
917 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
918 | TYPE_TARGET_TYPE (result_type) = element_type; | |
919 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
920 | low_bound = high_bound = 0; | |
921 | CHECK_TYPEDEF (element_type); | |
ab0d6e0d JB |
922 | /* Be careful when setting the array length. Ada arrays can be |
923 | empty arrays with the high_bound being smaller than the low_bound. | |
924 | In such cases, the array length should be zero. */ | |
925 | if (high_bound < low_bound) | |
926 | TYPE_LENGTH (result_type) = 0; | |
927 | else | |
928 | TYPE_LENGTH (result_type) = | |
929 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
c906108c SS |
930 | TYPE_NFIELDS (result_type) = 1; |
931 | TYPE_FIELDS (result_type) = | |
1deafd4e | 932 | (struct field *) TYPE_ZALLOC (result_type, sizeof (struct field)); |
262452ec | 933 | TYPE_INDEX_TYPE (result_type) = range_type; |
c906108c SS |
934 | TYPE_VPTR_FIELDNO (result_type) = -1; |
935 | ||
0963b4bd | 936 | /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays. */ |
c906108c | 937 | if (TYPE_LENGTH (result_type) == 0) |
876cecd0 | 938 | TYPE_TARGET_STUB (result_type) = 1; |
c906108c | 939 | |
c16abbde | 940 | return result_type; |
c906108c SS |
941 | } |
942 | ||
e3506a9f UW |
943 | struct type * |
944 | lookup_array_range_type (struct type *element_type, | |
945 | int low_bound, int high_bound) | |
946 | { | |
50810684 | 947 | struct gdbarch *gdbarch = get_type_arch (element_type); |
e3506a9f UW |
948 | struct type *index_type = builtin_type (gdbarch)->builtin_int; |
949 | struct type *range_type | |
950 | = create_range_type (NULL, index_type, low_bound, high_bound); | |
d8734c88 | 951 | |
e3506a9f UW |
952 | return create_array_type (NULL, element_type, range_type); |
953 | } | |
954 | ||
7ba81444 MS |
955 | /* Create a string type using either a blank type supplied in |
956 | RESULT_TYPE, or creating a new type. String types are similar | |
957 | enough to array of char types that we can use create_array_type to | |
958 | build the basic type and then bash it into a string type. | |
c906108c SS |
959 | |
960 | For fixed length strings, the range type contains 0 as the lower | |
961 | bound and the length of the string minus one as the upper bound. | |
962 | ||
7ba81444 MS |
963 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
964 | sure it is TYPE_CODE_UNDEF before we bash it into a string | |
965 | type? */ | |
c906108c SS |
966 | |
967 | struct type * | |
3b7538c0 UW |
968 | create_string_type (struct type *result_type, |
969 | struct type *string_char_type, | |
7ba81444 | 970 | struct type *range_type) |
c906108c SS |
971 | { |
972 | result_type = create_array_type (result_type, | |
f290d38e | 973 | string_char_type, |
c906108c SS |
974 | range_type); |
975 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
c16abbde | 976 | return result_type; |
c906108c SS |
977 | } |
978 | ||
e3506a9f UW |
979 | struct type * |
980 | lookup_string_range_type (struct type *string_char_type, | |
981 | int low_bound, int high_bound) | |
982 | { | |
983 | struct type *result_type; | |
d8734c88 | 984 | |
e3506a9f UW |
985 | result_type = lookup_array_range_type (string_char_type, |
986 | low_bound, high_bound); | |
987 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
988 | return result_type; | |
989 | } | |
990 | ||
c906108c | 991 | struct type * |
fba45db2 | 992 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c | 993 | { |
c906108c | 994 | if (result_type == NULL) |
e9bb382b UW |
995 | result_type = alloc_type_copy (domain_type); |
996 | ||
c906108c SS |
997 | TYPE_CODE (result_type) = TYPE_CODE_SET; |
998 | TYPE_NFIELDS (result_type) = 1; | |
1deafd4e | 999 | TYPE_FIELDS (result_type) = TYPE_ZALLOC (result_type, sizeof (struct field)); |
c906108c | 1000 | |
74a9bb82 | 1001 | if (!TYPE_STUB (domain_type)) |
c906108c | 1002 | { |
f9780d5b | 1003 | LONGEST low_bound, high_bound, bit_length; |
d8734c88 | 1004 | |
c906108c SS |
1005 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
1006 | low_bound = high_bound = 0; | |
1007 | bit_length = high_bound - low_bound + 1; | |
1008 | TYPE_LENGTH (result_type) | |
1009 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
f9780d5b | 1010 | if (low_bound >= 0) |
876cecd0 | 1011 | TYPE_UNSIGNED (result_type) = 1; |
c906108c SS |
1012 | } |
1013 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
1014 | ||
c16abbde | 1015 | return result_type; |
c906108c SS |
1016 | } |
1017 | ||
ea37ba09 DJ |
1018 | /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
1019 | and any array types nested inside it. */ | |
1020 | ||
1021 | void | |
1022 | make_vector_type (struct type *array_type) | |
1023 | { | |
1024 | struct type *inner_array, *elt_type; | |
1025 | int flags; | |
1026 | ||
1027 | /* Find the innermost array type, in case the array is | |
1028 | multi-dimensional. */ | |
1029 | inner_array = array_type; | |
1030 | while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY) | |
1031 | inner_array = TYPE_TARGET_TYPE (inner_array); | |
1032 | ||
1033 | elt_type = TYPE_TARGET_TYPE (inner_array); | |
1034 | if (TYPE_CODE (elt_type) == TYPE_CODE_INT) | |
1035 | { | |
2844d6b5 | 1036 | flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_INSTANCE_FLAG_NOTTEXT; |
ea37ba09 DJ |
1037 | elt_type = make_qualified_type (elt_type, flags, NULL); |
1038 | TYPE_TARGET_TYPE (inner_array) = elt_type; | |
1039 | } | |
1040 | ||
876cecd0 | 1041 | TYPE_VECTOR (array_type) = 1; |
ea37ba09 DJ |
1042 | } |
1043 | ||
794ac428 | 1044 | struct type * |
ac3aafc7 EZ |
1045 | init_vector_type (struct type *elt_type, int n) |
1046 | { | |
1047 | struct type *array_type; | |
d8734c88 | 1048 | |
e3506a9f | 1049 | array_type = lookup_array_range_type (elt_type, 0, n - 1); |
ea37ba09 | 1050 | make_vector_type (array_type); |
ac3aafc7 EZ |
1051 | return array_type; |
1052 | } | |
1053 | ||
0d5de010 DJ |
1054 | /* Smash TYPE to be a type of pointers to members of DOMAIN with type |
1055 | TO_TYPE. A member pointer is a wierd thing -- it amounts to a | |
1056 | typed offset into a struct, e.g. "an int at offset 8". A MEMBER | |
1057 | TYPE doesn't include the offset (that's the value of the MEMBER | |
1058 | itself), but does include the structure type into which it points | |
1059 | (for some reason). | |
c906108c | 1060 | |
7ba81444 MS |
1061 | When "smashing" the type, we preserve the objfile that the old type |
1062 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1063 | allocated. */ |
1064 | ||
1065 | void | |
0d5de010 DJ |
1066 | smash_to_memberptr_type (struct type *type, struct type *domain, |
1067 | struct type *to_type) | |
c906108c | 1068 | { |
2fdde8f8 | 1069 | smash_type (type); |
c906108c SS |
1070 | TYPE_TARGET_TYPE (type) = to_type; |
1071 | TYPE_DOMAIN_TYPE (type) = domain; | |
0d5de010 DJ |
1072 | /* Assume that a data member pointer is the same size as a normal |
1073 | pointer. */ | |
50810684 UW |
1074 | TYPE_LENGTH (type) |
1075 | = gdbarch_ptr_bit (get_type_arch (to_type)) / TARGET_CHAR_BIT; | |
0d5de010 | 1076 | TYPE_CODE (type) = TYPE_CODE_MEMBERPTR; |
c906108c SS |
1077 | } |
1078 | ||
0b92b5bb TT |
1079 | /* Smash TYPE to be a type of pointer to methods type TO_TYPE. |
1080 | ||
1081 | When "smashing" the type, we preserve the objfile that the old type | |
1082 | pointed to, since we aren't changing where the type is actually | |
1083 | allocated. */ | |
1084 | ||
1085 | void | |
1086 | smash_to_methodptr_type (struct type *type, struct type *to_type) | |
1087 | { | |
1088 | smash_type (type); | |
1089 | TYPE_TARGET_TYPE (type) = to_type; | |
1090 | TYPE_DOMAIN_TYPE (type) = TYPE_DOMAIN_TYPE (to_type); | |
1091 | TYPE_LENGTH (type) = cplus_method_ptr_size (to_type); | |
1092 | TYPE_CODE (type) = TYPE_CODE_METHODPTR; | |
1093 | } | |
1094 | ||
c906108c SS |
1095 | /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE. |
1096 | METHOD just means `function that gets an extra "this" argument'. | |
1097 | ||
7ba81444 MS |
1098 | When "smashing" the type, we preserve the objfile that the old type |
1099 | pointed to, since we aren't changing where the type is actually | |
c906108c SS |
1100 | allocated. */ |
1101 | ||
1102 | void | |
fba45db2 | 1103 | smash_to_method_type (struct type *type, struct type *domain, |
ad2f7632 DJ |
1104 | struct type *to_type, struct field *args, |
1105 | int nargs, int varargs) | |
c906108c | 1106 | { |
2fdde8f8 | 1107 | smash_type (type); |
c906108c SS |
1108 | TYPE_TARGET_TYPE (type) = to_type; |
1109 | TYPE_DOMAIN_TYPE (type) = domain; | |
ad2f7632 DJ |
1110 | TYPE_FIELDS (type) = args; |
1111 | TYPE_NFIELDS (type) = nargs; | |
1112 | if (varargs) | |
876cecd0 | 1113 | TYPE_VARARGS (type) = 1; |
c906108c SS |
1114 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
1115 | TYPE_CODE (type) = TYPE_CODE_METHOD; | |
1116 | } | |
1117 | ||
1118 | /* Return a typename for a struct/union/enum type without "struct ", | |
1119 | "union ", or "enum ". If the type has a NULL name, return NULL. */ | |
1120 | ||
0d5cff50 | 1121 | const char * |
aa1ee363 | 1122 | type_name_no_tag (const struct type *type) |
c906108c SS |
1123 | { |
1124 | if (TYPE_TAG_NAME (type) != NULL) | |
1125 | return TYPE_TAG_NAME (type); | |
1126 | ||
7ba81444 MS |
1127 | /* Is there code which expects this to return the name if there is |
1128 | no tag name? My guess is that this is mainly used for C++ in | |
1129 | cases where the two will always be the same. */ | |
c906108c SS |
1130 | return TYPE_NAME (type); |
1131 | } | |
1132 | ||
d8228535 JK |
1133 | /* A wrapper of type_name_no_tag which calls error if the type is anonymous. |
1134 | Since GCC PR debug/47510 DWARF provides associated information to detect the | |
1135 | anonymous class linkage name from its typedef. | |
1136 | ||
1137 | Parameter TYPE should not yet have CHECK_TYPEDEF applied, this function will | |
1138 | apply it itself. */ | |
1139 | ||
1140 | const char * | |
1141 | type_name_no_tag_or_error (struct type *type) | |
1142 | { | |
1143 | struct type *saved_type = type; | |
1144 | const char *name; | |
1145 | struct objfile *objfile; | |
1146 | ||
1147 | CHECK_TYPEDEF (type); | |
1148 | ||
1149 | name = type_name_no_tag (type); | |
1150 | if (name != NULL) | |
1151 | return name; | |
1152 | ||
1153 | name = type_name_no_tag (saved_type); | |
1154 | objfile = TYPE_OBJFILE (saved_type); | |
1155 | error (_("Invalid anonymous type %s [in module %s], GCC PR debug/47510 bug?"), | |
1156 | name ? name : "<anonymous>", objfile ? objfile->name : "<arch>"); | |
1157 | } | |
1158 | ||
7ba81444 MS |
1159 | /* Lookup a typedef or primitive type named NAME, visible in lexical |
1160 | block BLOCK. If NOERR is nonzero, return zero if NAME is not | |
1161 | suitably defined. */ | |
c906108c SS |
1162 | |
1163 | struct type * | |
e6c014f2 | 1164 | lookup_typename (const struct language_defn *language, |
ddd49eee | 1165 | struct gdbarch *gdbarch, const char *name, |
34eaf542 | 1166 | const struct block *block, int noerr) |
c906108c | 1167 | { |
52f0bd74 | 1168 | struct symbol *sym; |
659c9f3a | 1169 | struct type *type; |
c906108c | 1170 | |
774b6a14 | 1171 | sym = lookup_symbol (name, block, VAR_DOMAIN, 0); |
c51fe631 DE |
1172 | if (sym != NULL && SYMBOL_CLASS (sym) == LOC_TYPEDEF) |
1173 | return SYMBOL_TYPE (sym); | |
1174 | ||
659c9f3a DE |
1175 | type = language_lookup_primitive_type_by_name (language, gdbarch, name); |
1176 | if (type) | |
1177 | return type; | |
c51fe631 DE |
1178 | |
1179 | if (noerr) | |
1180 | return NULL; | |
1181 | error (_("No type named %s."), name); | |
c906108c SS |
1182 | } |
1183 | ||
1184 | struct type * | |
e6c014f2 | 1185 | lookup_unsigned_typename (const struct language_defn *language, |
0d5cff50 | 1186 | struct gdbarch *gdbarch, const char *name) |
c906108c SS |
1187 | { |
1188 | char *uns = alloca (strlen (name) + 10); | |
1189 | ||
1190 | strcpy (uns, "unsigned "); | |
1191 | strcpy (uns + 9, name); | |
e6c014f2 | 1192 | return lookup_typename (language, gdbarch, uns, (struct block *) NULL, 0); |
c906108c SS |
1193 | } |
1194 | ||
1195 | struct type * | |
e6c014f2 | 1196 | lookup_signed_typename (const struct language_defn *language, |
0d5cff50 | 1197 | struct gdbarch *gdbarch, const char *name) |
c906108c SS |
1198 | { |
1199 | struct type *t; | |
1200 | char *uns = alloca (strlen (name) + 8); | |
1201 | ||
1202 | strcpy (uns, "signed "); | |
1203 | strcpy (uns + 7, name); | |
e6c014f2 | 1204 | t = lookup_typename (language, gdbarch, uns, (struct block *) NULL, 1); |
7ba81444 | 1205 | /* If we don't find "signed FOO" just try again with plain "FOO". */ |
c906108c SS |
1206 | if (t != NULL) |
1207 | return t; | |
e6c014f2 | 1208 | return lookup_typename (language, gdbarch, name, (struct block *) NULL, 0); |
c906108c SS |
1209 | } |
1210 | ||
1211 | /* Lookup a structure type named "struct NAME", | |
1212 | visible in lexical block BLOCK. */ | |
1213 | ||
1214 | struct type * | |
ddd49eee | 1215 | lookup_struct (const char *name, struct block *block) |
c906108c | 1216 | { |
52f0bd74 | 1217 | struct symbol *sym; |
c906108c | 1218 | |
2570f2b7 | 1219 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1220 | |
1221 | if (sym == NULL) | |
1222 | { | |
8a3fe4f8 | 1223 | error (_("No struct type named %s."), name); |
c906108c SS |
1224 | } |
1225 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1226 | { | |
7ba81444 MS |
1227 | error (_("This context has class, union or enum %s, not a struct."), |
1228 | name); | |
c906108c SS |
1229 | } |
1230 | return (SYMBOL_TYPE (sym)); | |
1231 | } | |
1232 | ||
1233 | /* Lookup a union type named "union NAME", | |
1234 | visible in lexical block BLOCK. */ | |
1235 | ||
1236 | struct type * | |
ddd49eee | 1237 | lookup_union (const char *name, struct block *block) |
c906108c | 1238 | { |
52f0bd74 | 1239 | struct symbol *sym; |
c5aa993b | 1240 | struct type *t; |
c906108c | 1241 | |
2570f2b7 | 1242 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1243 | |
1244 | if (sym == NULL) | |
8a3fe4f8 | 1245 | error (_("No union type named %s."), name); |
c906108c | 1246 | |
c5aa993b | 1247 | t = SYMBOL_TYPE (sym); |
c906108c SS |
1248 | |
1249 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
c16abbde | 1250 | return t; |
c906108c | 1251 | |
7ba81444 MS |
1252 | /* If we get here, it's not a union. */ |
1253 | error (_("This context has class, struct or enum %s, not a union."), | |
1254 | name); | |
c906108c SS |
1255 | } |
1256 | ||
1257 | ||
1258 | /* Lookup an enum type named "enum NAME", | |
1259 | visible in lexical block BLOCK. */ | |
1260 | ||
1261 | struct type * | |
ddd49eee | 1262 | lookup_enum (const char *name, struct block *block) |
c906108c | 1263 | { |
52f0bd74 | 1264 | struct symbol *sym; |
c906108c | 1265 | |
2570f2b7 | 1266 | sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0); |
c906108c SS |
1267 | if (sym == NULL) |
1268 | { | |
8a3fe4f8 | 1269 | error (_("No enum type named %s."), name); |
c906108c SS |
1270 | } |
1271 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
1272 | { | |
7ba81444 MS |
1273 | error (_("This context has class, struct or union %s, not an enum."), |
1274 | name); | |
c906108c SS |
1275 | } |
1276 | return (SYMBOL_TYPE (sym)); | |
1277 | } | |
1278 | ||
1279 | /* Lookup a template type named "template NAME<TYPE>", | |
1280 | visible in lexical block BLOCK. */ | |
1281 | ||
1282 | struct type * | |
7ba81444 MS |
1283 | lookup_template_type (char *name, struct type *type, |
1284 | struct block *block) | |
c906108c SS |
1285 | { |
1286 | struct symbol *sym; | |
7ba81444 MS |
1287 | char *nam = (char *) |
1288 | alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4); | |
d8734c88 | 1289 | |
c906108c SS |
1290 | strcpy (nam, name); |
1291 | strcat (nam, "<"); | |
0004e5a2 | 1292 | strcat (nam, TYPE_NAME (type)); |
0963b4bd | 1293 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1294 | |
2570f2b7 | 1295 | sym = lookup_symbol (nam, block, VAR_DOMAIN, 0); |
c906108c SS |
1296 | |
1297 | if (sym == NULL) | |
1298 | { | |
8a3fe4f8 | 1299 | error (_("No template type named %s."), name); |
c906108c SS |
1300 | } |
1301 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1302 | { | |
7ba81444 MS |
1303 | error (_("This context has class, union or enum %s, not a struct."), |
1304 | name); | |
c906108c SS |
1305 | } |
1306 | return (SYMBOL_TYPE (sym)); | |
1307 | } | |
1308 | ||
7ba81444 MS |
1309 | /* Given a type TYPE, lookup the type of the component of type named |
1310 | NAME. | |
c906108c | 1311 | |
7ba81444 MS |
1312 | TYPE can be either a struct or union, or a pointer or reference to |
1313 | a struct or union. If it is a pointer or reference, its target | |
1314 | type is automatically used. Thus '.' and '->' are interchangable, | |
1315 | as specified for the definitions of the expression element types | |
1316 | STRUCTOP_STRUCT and STRUCTOP_PTR. | |
c906108c SS |
1317 | |
1318 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
1319 | If NAME is the name of a baseclass type, return that type. */ | |
1320 | ||
1321 | struct type * | |
fba45db2 | 1322 | lookup_struct_elt_type (struct type *type, char *name, int noerr) |
c906108c SS |
1323 | { |
1324 | int i; | |
c92817ce | 1325 | char *typename; |
c906108c SS |
1326 | |
1327 | for (;;) | |
1328 | { | |
1329 | CHECK_TYPEDEF (type); | |
1330 | if (TYPE_CODE (type) != TYPE_CODE_PTR | |
1331 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1332 | break; | |
1333 | type = TYPE_TARGET_TYPE (type); | |
1334 | } | |
1335 | ||
687d6395 MS |
1336 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
1337 | && TYPE_CODE (type) != TYPE_CODE_UNION) | |
c906108c | 1338 | { |
c92817ce TT |
1339 | typename = type_to_string (type); |
1340 | make_cleanup (xfree, typename); | |
1341 | error (_("Type %s is not a structure or union type."), typename); | |
c906108c SS |
1342 | } |
1343 | ||
1344 | #if 0 | |
7ba81444 MS |
1345 | /* FIXME: This change put in by Michael seems incorrect for the case |
1346 | where the structure tag name is the same as the member name. | |
0963b4bd | 1347 | I.e. when doing "ptype bell->bar" for "struct foo { int bar; int |
7ba81444 | 1348 | foo; } bell;" Disabled by fnf. */ |
c906108c SS |
1349 | { |
1350 | char *typename; | |
1351 | ||
1352 | typename = type_name_no_tag (type); | |
762f08a3 | 1353 | if (typename != NULL && strcmp (typename, name) == 0) |
c906108c SS |
1354 | return type; |
1355 | } | |
1356 | #endif | |
1357 | ||
1358 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1359 | { | |
0d5cff50 | 1360 | const char *t_field_name = TYPE_FIELD_NAME (type, i); |
c906108c | 1361 | |
db577aea | 1362 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c SS |
1363 | { |
1364 | return TYPE_FIELD_TYPE (type, i); | |
1365 | } | |
f5a010c0 PM |
1366 | else if (!t_field_name || *t_field_name == '\0') |
1367 | { | |
d8734c88 MS |
1368 | struct type *subtype |
1369 | = lookup_struct_elt_type (TYPE_FIELD_TYPE (type, i), name, 1); | |
1370 | ||
f5a010c0 PM |
1371 | if (subtype != NULL) |
1372 | return subtype; | |
1373 | } | |
c906108c SS |
1374 | } |
1375 | ||
1376 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1377 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1378 | { | |
1379 | struct type *t; | |
1380 | ||
9733fc94 | 1381 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 1); |
c906108c SS |
1382 | if (t != NULL) |
1383 | { | |
1384 | return t; | |
1385 | } | |
1386 | } | |
1387 | ||
1388 | if (noerr) | |
1389 | { | |
1390 | return NULL; | |
1391 | } | |
c5aa993b | 1392 | |
c92817ce TT |
1393 | typename = type_to_string (type); |
1394 | make_cleanup (xfree, typename); | |
1395 | error (_("Type %s has no component named %s."), typename, name); | |
c906108c SS |
1396 | } |
1397 | ||
81fe8080 DE |
1398 | /* Lookup the vptr basetype/fieldno values for TYPE. |
1399 | If found store vptr_basetype in *BASETYPEP if non-NULL, and return | |
1400 | vptr_fieldno. Also, if found and basetype is from the same objfile, | |
1401 | cache the results. | |
1402 | If not found, return -1 and ignore BASETYPEP. | |
1403 | Callers should be aware that in some cases (for example, | |
c906108c | 1404 | the type or one of its baseclasses is a stub type and we are |
d48cc9dd DJ |
1405 | debugging a .o file, or the compiler uses DWARF-2 and is not GCC), |
1406 | this function will not be able to find the | |
7ba81444 | 1407 | virtual function table pointer, and vptr_fieldno will remain -1 and |
81fe8080 | 1408 | vptr_basetype will remain NULL or incomplete. */ |
c906108c | 1409 | |
81fe8080 DE |
1410 | int |
1411 | get_vptr_fieldno (struct type *type, struct type **basetypep) | |
c906108c SS |
1412 | { |
1413 | CHECK_TYPEDEF (type); | |
1414 | ||
1415 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1416 | { | |
1417 | int i; | |
1418 | ||
7ba81444 MS |
1419 | /* We must start at zero in case the first (and only) baseclass |
1420 | is virtual (and hence we cannot share the table pointer). */ | |
c906108c SS |
1421 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1422 | { | |
81fe8080 DE |
1423 | struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
1424 | int fieldno; | |
1425 | struct type *basetype; | |
1426 | ||
1427 | fieldno = get_vptr_fieldno (baseclass, &basetype); | |
1428 | if (fieldno >= 0) | |
c906108c | 1429 | { |
81fe8080 | 1430 | /* If the type comes from a different objfile we can't cache |
0963b4bd | 1431 | it, it may have a different lifetime. PR 2384 */ |
5ef73790 | 1432 | if (TYPE_OBJFILE (type) == TYPE_OBJFILE (basetype)) |
81fe8080 DE |
1433 | { |
1434 | TYPE_VPTR_FIELDNO (type) = fieldno; | |
1435 | TYPE_VPTR_BASETYPE (type) = basetype; | |
1436 | } | |
1437 | if (basetypep) | |
1438 | *basetypep = basetype; | |
1439 | return fieldno; | |
c906108c SS |
1440 | } |
1441 | } | |
81fe8080 DE |
1442 | |
1443 | /* Not found. */ | |
1444 | return -1; | |
1445 | } | |
1446 | else | |
1447 | { | |
1448 | if (basetypep) | |
1449 | *basetypep = TYPE_VPTR_BASETYPE (type); | |
1450 | return TYPE_VPTR_FIELDNO (type); | |
c906108c SS |
1451 | } |
1452 | } | |
1453 | ||
44e1a9eb DJ |
1454 | static void |
1455 | stub_noname_complaint (void) | |
1456 | { | |
e2e0b3e5 | 1457 | complaint (&symfile_complaints, _("stub type has NULL name")); |
44e1a9eb DJ |
1458 | } |
1459 | ||
92163a10 JK |
1460 | /* Find the real type of TYPE. This function returns the real type, |
1461 | after removing all layers of typedefs, and completing opaque or stub | |
1462 | types. Completion changes the TYPE argument, but stripping of | |
1463 | typedefs does not. | |
1464 | ||
1465 | Instance flags (e.g. const/volatile) are preserved as typedefs are | |
1466 | stripped. If necessary a new qualified form of the underlying type | |
1467 | is created. | |
1468 | ||
1469 | NOTE: This will return a typedef if TYPE_TARGET_TYPE for the typedef has | |
1470 | not been computed and we're either in the middle of reading symbols, or | |
1471 | there was no name for the typedef in the debug info. | |
1472 | ||
9bc118a5 DE |
1473 | NOTE: Lookup of opaque types can throw errors for invalid symbol files. |
1474 | QUITs in the symbol reading code can also throw. | |
1475 | Thus this function can throw an exception. | |
1476 | ||
92163a10 JK |
1477 | If TYPE is a TYPE_CODE_TYPEDEF, its length is updated to the length of |
1478 | the target type. | |
c906108c SS |
1479 | |
1480 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
0963b4bd | 1481 | we can find a full definition in some other file. If so, copy this |
7ba81444 MS |
1482 | definition, so we can use it in future. There used to be a comment |
1483 | (but not any code) that if we don't find a full definition, we'd | |
1484 | set a flag so we don't spend time in the future checking the same | |
1485 | type. That would be a mistake, though--we might load in more | |
92163a10 | 1486 | symbols which contain a full definition for the type. */ |
c906108c SS |
1487 | |
1488 | struct type * | |
a02fd225 | 1489 | check_typedef (struct type *type) |
c906108c SS |
1490 | { |
1491 | struct type *orig_type = type; | |
92163a10 JK |
1492 | /* While we're removing typedefs, we don't want to lose qualifiers. |
1493 | E.g., const/volatile. */ | |
1494 | int instance_flags = TYPE_INSTANCE_FLAGS (type); | |
a02fd225 | 1495 | |
423c0af8 MS |
1496 | gdb_assert (type); |
1497 | ||
c906108c SS |
1498 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
1499 | { | |
1500 | if (!TYPE_TARGET_TYPE (type)) | |
1501 | { | |
0d5cff50 | 1502 | const char *name; |
c906108c SS |
1503 | struct symbol *sym; |
1504 | ||
1505 | /* It is dangerous to call lookup_symbol if we are currently | |
7ba81444 | 1506 | reading a symtab. Infinite recursion is one danger. */ |
c906108c | 1507 | if (currently_reading_symtab) |
92163a10 | 1508 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
1509 | |
1510 | name = type_name_no_tag (type); | |
7ba81444 MS |
1511 | /* FIXME: shouldn't we separately check the TYPE_NAME and |
1512 | the TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or | |
1513 | VAR_DOMAIN as appropriate? (this code was written before | |
1514 | TYPE_NAME and TYPE_TAG_NAME were separate). */ | |
c906108c SS |
1515 | if (name == NULL) |
1516 | { | |
23136709 | 1517 | stub_noname_complaint (); |
92163a10 | 1518 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 1519 | } |
2570f2b7 | 1520 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0); |
c906108c SS |
1521 | if (sym) |
1522 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
7ba81444 | 1523 | else /* TYPE_CODE_UNDEF */ |
e9bb382b | 1524 | TYPE_TARGET_TYPE (type) = alloc_type_arch (get_type_arch (type)); |
c906108c SS |
1525 | } |
1526 | type = TYPE_TARGET_TYPE (type); | |
c906108c | 1527 | |
92163a10 JK |
1528 | /* Preserve the instance flags as we traverse down the typedef chain. |
1529 | ||
1530 | Handling address spaces/classes is nasty, what do we do if there's a | |
1531 | conflict? | |
1532 | E.g., what if an outer typedef marks the type as class_1 and an inner | |
1533 | typedef marks the type as class_2? | |
1534 | This is the wrong place to do such error checking. We leave it to | |
1535 | the code that created the typedef in the first place to flag the | |
1536 | error. We just pick the outer address space (akin to letting the | |
1537 | outer cast in a chain of casting win), instead of assuming | |
1538 | "it can't happen". */ | |
1539 | { | |
1540 | const int ALL_SPACES = (TYPE_INSTANCE_FLAG_CODE_SPACE | |
1541 | | TYPE_INSTANCE_FLAG_DATA_SPACE); | |
1542 | const int ALL_CLASSES = TYPE_INSTANCE_FLAG_ADDRESS_CLASS_ALL; | |
1543 | int new_instance_flags = TYPE_INSTANCE_FLAGS (type); | |
1544 | ||
1545 | /* Treat code vs data spaces and address classes separately. */ | |
1546 | if ((instance_flags & ALL_SPACES) != 0) | |
1547 | new_instance_flags &= ~ALL_SPACES; | |
1548 | if ((instance_flags & ALL_CLASSES) != 0) | |
1549 | new_instance_flags &= ~ALL_CLASSES; | |
1550 | ||
1551 | instance_flags |= new_instance_flags; | |
1552 | } | |
1553 | } | |
a02fd225 | 1554 | |
7ba81444 MS |
1555 | /* If this is a struct/class/union with no fields, then check |
1556 | whether a full definition exists somewhere else. This is for | |
1557 | systems where a type definition with no fields is issued for such | |
1558 | types, instead of identifying them as stub types in the first | |
1559 | place. */ | |
c5aa993b | 1560 | |
7ba81444 MS |
1561 | if (TYPE_IS_OPAQUE (type) |
1562 | && opaque_type_resolution | |
1563 | && !currently_reading_symtab) | |
c906108c | 1564 | { |
0d5cff50 | 1565 | const char *name = type_name_no_tag (type); |
c5aa993b | 1566 | struct type *newtype; |
d8734c88 | 1567 | |
c906108c SS |
1568 | if (name == NULL) |
1569 | { | |
23136709 | 1570 | stub_noname_complaint (); |
92163a10 | 1571 | return make_qualified_type (type, instance_flags, NULL); |
c906108c SS |
1572 | } |
1573 | newtype = lookup_transparent_type (name); | |
ad766c0a | 1574 | |
c906108c | 1575 | if (newtype) |
ad766c0a | 1576 | { |
7ba81444 MS |
1577 | /* If the resolved type and the stub are in the same |
1578 | objfile, then replace the stub type with the real deal. | |
1579 | But if they're in separate objfiles, leave the stub | |
1580 | alone; we'll just look up the transparent type every time | |
1581 | we call check_typedef. We can't create pointers between | |
1582 | types allocated to different objfiles, since they may | |
1583 | have different lifetimes. Trying to copy NEWTYPE over to | |
1584 | TYPE's objfile is pointless, too, since you'll have to | |
1585 | move over any other types NEWTYPE refers to, which could | |
1586 | be an unbounded amount of stuff. */ | |
ad766c0a | 1587 | if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
92163a10 JK |
1588 | type = make_qualified_type (newtype, |
1589 | TYPE_INSTANCE_FLAGS (type), | |
1590 | type); | |
ad766c0a JB |
1591 | else |
1592 | type = newtype; | |
1593 | } | |
c906108c | 1594 | } |
7ba81444 MS |
1595 | /* Otherwise, rely on the stub flag being set for opaque/stubbed |
1596 | types. */ | |
74a9bb82 | 1597 | else if (TYPE_STUB (type) && !currently_reading_symtab) |
c906108c | 1598 | { |
0d5cff50 | 1599 | const char *name = type_name_no_tag (type); |
c906108c | 1600 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
176620f1 | 1601 | TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or VAR_DOMAIN |
7b83ea04 AC |
1602 | as appropriate? (this code was written before TYPE_NAME and |
1603 | TYPE_TAG_NAME were separate). */ | |
c906108c | 1604 | struct symbol *sym; |
d8734c88 | 1605 | |
c906108c SS |
1606 | if (name == NULL) |
1607 | { | |
23136709 | 1608 | stub_noname_complaint (); |
92163a10 | 1609 | return make_qualified_type (type, instance_flags, NULL); |
c906108c | 1610 | } |
2570f2b7 | 1611 | sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0); |
c906108c | 1612 | if (sym) |
c26f2453 JB |
1613 | { |
1614 | /* Same as above for opaque types, we can replace the stub | |
92163a10 | 1615 | with the complete type only if they are in the same |
c26f2453 JB |
1616 | objfile. */ |
1617 | if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type)) | |
92163a10 JK |
1618 | type = make_qualified_type (SYMBOL_TYPE (sym), |
1619 | TYPE_INSTANCE_FLAGS (type), | |
1620 | type); | |
c26f2453 JB |
1621 | else |
1622 | type = SYMBOL_TYPE (sym); | |
1623 | } | |
c906108c SS |
1624 | } |
1625 | ||
74a9bb82 | 1626 | if (TYPE_TARGET_STUB (type)) |
c906108c SS |
1627 | { |
1628 | struct type *range_type; | |
1629 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1630 | ||
74a9bb82 | 1631 | if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
c5aa993b | 1632 | { |
73e2eb35 | 1633 | /* Nothing we can do. */ |
c5aa993b | 1634 | } |
c906108c SS |
1635 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY |
1636 | && TYPE_NFIELDS (type) == 1 | |
262452ec | 1637 | && (TYPE_CODE (range_type = TYPE_INDEX_TYPE (type)) |
c906108c SS |
1638 | == TYPE_CODE_RANGE)) |
1639 | { | |
1640 | /* Now recompute the length of the array type, based on its | |
ab0d6e0d JB |
1641 | number of elements and the target type's length. |
1642 | Watch out for Ada null Ada arrays where the high bound | |
0963b4bd | 1643 | is smaller than the low bound. */ |
43bbcdc2 PH |
1644 | const LONGEST low_bound = TYPE_LOW_BOUND (range_type); |
1645 | const LONGEST high_bound = TYPE_HIGH_BOUND (range_type); | |
1646 | ULONGEST len; | |
1647 | ||
ab0d6e0d | 1648 | if (high_bound < low_bound) |
43bbcdc2 | 1649 | len = 0; |
d8734c88 MS |
1650 | else |
1651 | { | |
1652 | /* For now, we conservatively take the array length to be 0 | |
1653 | if its length exceeds UINT_MAX. The code below assumes | |
1654 | that for x < 0, (ULONGEST) x == -x + ULONGEST_MAX + 1, | |
1655 | which is technically not guaranteed by C, but is usually true | |
1656 | (because it would be true if x were unsigned with its | |
0963b4bd | 1657 | high-order bit on). It uses the fact that |
d8734c88 MS |
1658 | high_bound-low_bound is always representable in |
1659 | ULONGEST and that if high_bound-low_bound+1 overflows, | |
1660 | it overflows to 0. We must change these tests if we | |
1661 | decide to increase the representation of TYPE_LENGTH | |
0963b4bd | 1662 | from unsigned int to ULONGEST. */ |
d8734c88 MS |
1663 | ULONGEST ulow = low_bound, uhigh = high_bound; |
1664 | ULONGEST tlen = TYPE_LENGTH (target_type); | |
1665 | ||
1666 | len = tlen * (uhigh - ulow + 1); | |
1667 | if (tlen == 0 || (len / tlen - 1 + ulow) != uhigh | |
1668 | || len > UINT_MAX) | |
1669 | len = 0; | |
1670 | } | |
43bbcdc2 | 1671 | TYPE_LENGTH (type) = len; |
876cecd0 | 1672 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
1673 | } |
1674 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) | |
1675 | { | |
1676 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
876cecd0 | 1677 | TYPE_TARGET_STUB (type) = 0; |
c906108c SS |
1678 | } |
1679 | } | |
92163a10 JK |
1680 | |
1681 | type = make_qualified_type (type, instance_flags, NULL); | |
1682 | ||
7ba81444 | 1683 | /* Cache TYPE_LENGTH for future use. */ |
c906108c | 1684 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
92163a10 | 1685 | |
c906108c SS |
1686 | return type; |
1687 | } | |
1688 | ||
7ba81444 | 1689 | /* Parse a type expression in the string [P..P+LENGTH). If an error |
48319d1f | 1690 | occurs, silently return a void type. */ |
c91ecb25 | 1691 | |
b9362cc7 | 1692 | static struct type * |
48319d1f | 1693 | safe_parse_type (struct gdbarch *gdbarch, char *p, int length) |
c91ecb25 ND |
1694 | { |
1695 | struct ui_file *saved_gdb_stderr; | |
34365054 | 1696 | struct type *type = NULL; /* Initialize to keep gcc happy. */ |
8e7b59a5 | 1697 | volatile struct gdb_exception except; |
c91ecb25 | 1698 | |
7ba81444 | 1699 | /* Suppress error messages. */ |
c91ecb25 ND |
1700 | saved_gdb_stderr = gdb_stderr; |
1701 | gdb_stderr = ui_file_new (); | |
1702 | ||
7ba81444 | 1703 | /* Call parse_and_eval_type() without fear of longjmp()s. */ |
8e7b59a5 KS |
1704 | TRY_CATCH (except, RETURN_MASK_ERROR) |
1705 | { | |
1706 | type = parse_and_eval_type (p, length); | |
1707 | } | |
1708 | ||
1709 | if (except.reason < 0) | |
48319d1f | 1710 | type = builtin_type (gdbarch)->builtin_void; |
c91ecb25 | 1711 | |
7ba81444 | 1712 | /* Stop suppressing error messages. */ |
c91ecb25 ND |
1713 | ui_file_delete (gdb_stderr); |
1714 | gdb_stderr = saved_gdb_stderr; | |
1715 | ||
1716 | return type; | |
1717 | } | |
1718 | ||
c906108c SS |
1719 | /* Ugly hack to convert method stubs into method types. |
1720 | ||
7ba81444 MS |
1721 | He ain't kiddin'. This demangles the name of the method into a |
1722 | string including argument types, parses out each argument type, | |
1723 | generates a string casting a zero to that type, evaluates the | |
1724 | string, and stuffs the resulting type into an argtype vector!!! | |
1725 | Then it knows the type of the whole function (including argument | |
1726 | types for overloading), which info used to be in the stab's but was | |
1727 | removed to hack back the space required for them. */ | |
c906108c | 1728 | |
de17c821 | 1729 | static void |
fba45db2 | 1730 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c | 1731 | { |
50810684 | 1732 | struct gdbarch *gdbarch = get_type_arch (type); |
c906108c SS |
1733 | struct fn_field *f; |
1734 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
1735 | char *demangled_name = cplus_demangle (mangled_name, | |
1736 | DMGL_PARAMS | DMGL_ANSI); | |
1737 | char *argtypetext, *p; | |
1738 | int depth = 0, argcount = 1; | |
ad2f7632 | 1739 | struct field *argtypes; |
c906108c SS |
1740 | struct type *mtype; |
1741 | ||
1742 | /* Make sure we got back a function string that we can use. */ | |
1743 | if (demangled_name) | |
1744 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
1745 | else |
1746 | p = NULL; | |
c906108c SS |
1747 | |
1748 | if (demangled_name == NULL || p == NULL) | |
7ba81444 MS |
1749 | error (_("Internal: Cannot demangle mangled name `%s'."), |
1750 | mangled_name); | |
c906108c SS |
1751 | |
1752 | /* Now, read in the parameters that define this type. */ | |
1753 | p += 1; | |
1754 | argtypetext = p; | |
1755 | while (*p) | |
1756 | { | |
070ad9f0 | 1757 | if (*p == '(' || *p == '<') |
c906108c SS |
1758 | { |
1759 | depth += 1; | |
1760 | } | |
070ad9f0 | 1761 | else if (*p == ')' || *p == '>') |
c906108c SS |
1762 | { |
1763 | depth -= 1; | |
1764 | } | |
1765 | else if (*p == ',' && depth == 0) | |
1766 | { | |
1767 | argcount += 1; | |
1768 | } | |
1769 | ||
1770 | p += 1; | |
1771 | } | |
1772 | ||
ad2f7632 DJ |
1773 | /* If we read one argument and it was ``void'', don't count it. */ |
1774 | if (strncmp (argtypetext, "(void)", 6) == 0) | |
1775 | argcount -= 1; | |
c906108c | 1776 | |
ad2f7632 DJ |
1777 | /* We need one extra slot, for the THIS pointer. */ |
1778 | ||
1779 | argtypes = (struct field *) | |
1780 | TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); | |
c906108c | 1781 | p = argtypetext; |
4a1970e4 DJ |
1782 | |
1783 | /* Add THIS pointer for non-static methods. */ | |
1784 | f = TYPE_FN_FIELDLIST1 (type, method_id); | |
1785 | if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) | |
1786 | argcount = 0; | |
1787 | else | |
1788 | { | |
ad2f7632 | 1789 | argtypes[0].type = lookup_pointer_type (type); |
4a1970e4 DJ |
1790 | argcount = 1; |
1791 | } | |
c906108c | 1792 | |
0963b4bd | 1793 | if (*p != ')') /* () means no args, skip while. */ |
c906108c SS |
1794 | { |
1795 | depth = 0; | |
1796 | while (*p) | |
1797 | { | |
1798 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
1799 | { | |
ad2f7632 DJ |
1800 | /* Avoid parsing of ellipsis, they will be handled below. |
1801 | Also avoid ``void'' as above. */ | |
1802 | if (strncmp (argtypetext, "...", p - argtypetext) != 0 | |
1803 | && strncmp (argtypetext, "void", p - argtypetext) != 0) | |
c906108c | 1804 | { |
ad2f7632 | 1805 | argtypes[argcount].type = |
48319d1f | 1806 | safe_parse_type (gdbarch, argtypetext, p - argtypetext); |
c906108c SS |
1807 | argcount += 1; |
1808 | } | |
1809 | argtypetext = p + 1; | |
1810 | } | |
1811 | ||
070ad9f0 | 1812 | if (*p == '(' || *p == '<') |
c906108c SS |
1813 | { |
1814 | depth += 1; | |
1815 | } | |
070ad9f0 | 1816 | else if (*p == ')' || *p == '>') |
c906108c SS |
1817 | { |
1818 | depth -= 1; | |
1819 | } | |
1820 | ||
1821 | p += 1; | |
1822 | } | |
1823 | } | |
1824 | ||
c906108c SS |
1825 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
1826 | ||
1827 | /* Now update the old "stub" type into a real type. */ | |
1828 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
1829 | TYPE_DOMAIN_TYPE (mtype) = type; | |
ad2f7632 DJ |
1830 | TYPE_FIELDS (mtype) = argtypes; |
1831 | TYPE_NFIELDS (mtype) = argcount; | |
876cecd0 | 1832 | TYPE_STUB (mtype) = 0; |
c906108c | 1833 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
ad2f7632 | 1834 | if (p[-2] == '.') |
876cecd0 | 1835 | TYPE_VARARGS (mtype) = 1; |
ad2f7632 DJ |
1836 | |
1837 | xfree (demangled_name); | |
c906108c SS |
1838 | } |
1839 | ||
7ba81444 MS |
1840 | /* This is the external interface to check_stub_method, above. This |
1841 | function unstubs all of the signatures for TYPE's METHOD_ID method | |
1842 | name. After calling this function TYPE_FN_FIELD_STUB will be | |
1843 | cleared for each signature and TYPE_FN_FIELDLIST_NAME will be | |
1844 | correct. | |
de17c821 DJ |
1845 | |
1846 | This function unfortunately can not die until stabs do. */ | |
1847 | ||
1848 | void | |
1849 | check_stub_method_group (struct type *type, int method_id) | |
1850 | { | |
1851 | int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); | |
1852 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
f710f4fc | 1853 | int j, found_stub = 0; |
de17c821 DJ |
1854 | |
1855 | for (j = 0; j < len; j++) | |
1856 | if (TYPE_FN_FIELD_STUB (f, j)) | |
1857 | { | |
1858 | found_stub = 1; | |
1859 | check_stub_method (type, method_id, j); | |
1860 | } | |
1861 | ||
7ba81444 MS |
1862 | /* GNU v3 methods with incorrect names were corrected when we read |
1863 | in type information, because it was cheaper to do it then. The | |
1864 | only GNU v2 methods with incorrect method names are operators and | |
1865 | destructors; destructors were also corrected when we read in type | |
1866 | information. | |
de17c821 DJ |
1867 | |
1868 | Therefore the only thing we need to handle here are v2 operator | |
1869 | names. */ | |
1870 | if (found_stub && strncmp (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z", 2) != 0) | |
1871 | { | |
1872 | int ret; | |
1873 | char dem_opname[256]; | |
1874 | ||
7ba81444 MS |
1875 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
1876 | method_id), | |
de17c821 DJ |
1877 | dem_opname, DMGL_ANSI); |
1878 | if (!ret) | |
7ba81444 MS |
1879 | ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
1880 | method_id), | |
de17c821 DJ |
1881 | dem_opname, 0); |
1882 | if (ret) | |
1883 | TYPE_FN_FIELDLIST_NAME (type, method_id) = xstrdup (dem_opname); | |
1884 | } | |
1885 | } | |
1886 | ||
9655fd1a JK |
1887 | /* Ensure it is in .rodata (if available) by workarounding GCC PR 44690. */ |
1888 | const struct cplus_struct_type cplus_struct_default = { }; | |
c906108c SS |
1889 | |
1890 | void | |
fba45db2 | 1891 | allocate_cplus_struct_type (struct type *type) |
c906108c | 1892 | { |
b4ba55a1 JB |
1893 | if (HAVE_CPLUS_STRUCT (type)) |
1894 | /* Structure was already allocated. Nothing more to do. */ | |
1895 | return; | |
1896 | ||
1897 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_CPLUS_STUFF; | |
1898 | TYPE_RAW_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
1899 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
1900 | *(TYPE_RAW_CPLUS_SPECIFIC (type)) = cplus_struct_default; | |
c906108c SS |
1901 | } |
1902 | ||
b4ba55a1 JB |
1903 | const struct gnat_aux_type gnat_aux_default = |
1904 | { NULL }; | |
1905 | ||
1906 | /* Set the TYPE's type-specific kind to TYPE_SPECIFIC_GNAT_STUFF, | |
1907 | and allocate the associated gnat-specific data. The gnat-specific | |
1908 | data is also initialized to gnat_aux_default. */ | |
1909 | void | |
1910 | allocate_gnat_aux_type (struct type *type) | |
1911 | { | |
1912 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_GNAT_STUFF; | |
1913 | TYPE_GNAT_SPECIFIC (type) = (struct gnat_aux_type *) | |
1914 | TYPE_ALLOC (type, sizeof (struct gnat_aux_type)); | |
1915 | *(TYPE_GNAT_SPECIFIC (type)) = gnat_aux_default; | |
1916 | } | |
1917 | ||
1918 | ||
c906108c SS |
1919 | /* Helper function to initialize the standard scalar types. |
1920 | ||
e9bb382b UW |
1921 | If NAME is non-NULL, then we make a copy of the string pointed |
1922 | to by name in the objfile_obstack for that objfile, and initialize | |
1923 | the type name to that copy. There are places (mipsread.c in particular), | |
1924 | where init_type is called with a NULL value for NAME). */ | |
c906108c SS |
1925 | |
1926 | struct type * | |
7ba81444 MS |
1927 | init_type (enum type_code code, int length, int flags, |
1928 | char *name, struct objfile *objfile) | |
c906108c | 1929 | { |
52f0bd74 | 1930 | struct type *type; |
c906108c SS |
1931 | |
1932 | type = alloc_type (objfile); | |
1933 | TYPE_CODE (type) = code; | |
1934 | TYPE_LENGTH (type) = length; | |
876cecd0 TT |
1935 | |
1936 | gdb_assert (!(flags & (TYPE_FLAG_MIN - 1))); | |
1937 | if (flags & TYPE_FLAG_UNSIGNED) | |
1938 | TYPE_UNSIGNED (type) = 1; | |
1939 | if (flags & TYPE_FLAG_NOSIGN) | |
1940 | TYPE_NOSIGN (type) = 1; | |
1941 | if (flags & TYPE_FLAG_STUB) | |
1942 | TYPE_STUB (type) = 1; | |
1943 | if (flags & TYPE_FLAG_TARGET_STUB) | |
1944 | TYPE_TARGET_STUB (type) = 1; | |
1945 | if (flags & TYPE_FLAG_STATIC) | |
1946 | TYPE_STATIC (type) = 1; | |
1947 | if (flags & TYPE_FLAG_PROTOTYPED) | |
1948 | TYPE_PROTOTYPED (type) = 1; | |
1949 | if (flags & TYPE_FLAG_INCOMPLETE) | |
1950 | TYPE_INCOMPLETE (type) = 1; | |
1951 | if (flags & TYPE_FLAG_VARARGS) | |
1952 | TYPE_VARARGS (type) = 1; | |
1953 | if (flags & TYPE_FLAG_VECTOR) | |
1954 | TYPE_VECTOR (type) = 1; | |
1955 | if (flags & TYPE_FLAG_STUB_SUPPORTED) | |
1956 | TYPE_STUB_SUPPORTED (type) = 1; | |
876cecd0 TT |
1957 | if (flags & TYPE_FLAG_FIXED_INSTANCE) |
1958 | TYPE_FIXED_INSTANCE (type) = 1; | |
0875794a JK |
1959 | if (flags & TYPE_FLAG_GNU_IFUNC) |
1960 | TYPE_GNU_IFUNC (type) = 1; | |
876cecd0 | 1961 | |
e9bb382b UW |
1962 | if (name) |
1963 | TYPE_NAME (type) = obsavestring (name, strlen (name), | |
1964 | &objfile->objfile_obstack); | |
c906108c SS |
1965 | |
1966 | /* C++ fancies. */ | |
1967 | ||
973ccf8b | 1968 | if (name && strcmp (name, "char") == 0) |
876cecd0 | 1969 | TYPE_NOSIGN (type) = 1; |
973ccf8b | 1970 | |
b4ba55a1 | 1971 | switch (code) |
c906108c | 1972 | { |
b4ba55a1 JB |
1973 | case TYPE_CODE_STRUCT: |
1974 | case TYPE_CODE_UNION: | |
1975 | case TYPE_CODE_NAMESPACE: | |
1976 | INIT_CPLUS_SPECIFIC (type); | |
1977 | break; | |
1978 | case TYPE_CODE_FLT: | |
1979 | TYPE_SPECIFIC_FIELD (type) = TYPE_SPECIFIC_FLOATFORMAT; | |
1980 | break; | |
1981 | case TYPE_CODE_FUNC: | |
b6cdc2c1 | 1982 | INIT_FUNC_SPECIFIC (type); |
b4ba55a1 | 1983 | break; |
c906108c | 1984 | } |
c16abbde | 1985 | return type; |
c906108c SS |
1986 | } |
1987 | ||
c906108c | 1988 | int |
fba45db2 | 1989 | can_dereference (struct type *t) |
c906108c | 1990 | { |
7ba81444 MS |
1991 | /* FIXME: Should we return true for references as well as |
1992 | pointers? */ | |
c906108c SS |
1993 | CHECK_TYPEDEF (t); |
1994 | return | |
1995 | (t != NULL | |
1996 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
1997 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
1998 | } | |
1999 | ||
adf40b2e | 2000 | int |
fba45db2 | 2001 | is_integral_type (struct type *t) |
adf40b2e JM |
2002 | { |
2003 | CHECK_TYPEDEF (t); | |
2004 | return | |
2005 | ((t != NULL) | |
d4f3574e SS |
2006 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
2007 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
4f2aea11 | 2008 | || (TYPE_CODE (t) == TYPE_CODE_FLAGS) |
d4f3574e SS |
2009 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) |
2010 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
2011 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
2012 | } |
2013 | ||
e09342b5 TJB |
2014 | /* Return true if TYPE is scalar. */ |
2015 | ||
2016 | static int | |
2017 | is_scalar_type (struct type *type) | |
2018 | { | |
2019 | CHECK_TYPEDEF (type); | |
2020 | ||
2021 | switch (TYPE_CODE (type)) | |
2022 | { | |
2023 | case TYPE_CODE_ARRAY: | |
2024 | case TYPE_CODE_STRUCT: | |
2025 | case TYPE_CODE_UNION: | |
2026 | case TYPE_CODE_SET: | |
2027 | case TYPE_CODE_STRING: | |
2028 | case TYPE_CODE_BITSTRING: | |
2029 | return 0; | |
2030 | default: | |
2031 | return 1; | |
2032 | } | |
2033 | } | |
2034 | ||
2035 | /* Return true if T is scalar, or a composite type which in practice has | |
90e4670f TJB |
2036 | the memory layout of a scalar type. E.g., an array or struct with only |
2037 | one scalar element inside it, or a union with only scalar elements. */ | |
e09342b5 TJB |
2038 | |
2039 | int | |
2040 | is_scalar_type_recursive (struct type *t) | |
2041 | { | |
2042 | CHECK_TYPEDEF (t); | |
2043 | ||
2044 | if (is_scalar_type (t)) | |
2045 | return 1; | |
2046 | /* Are we dealing with an array or string of known dimensions? */ | |
2047 | else if ((TYPE_CODE (t) == TYPE_CODE_ARRAY | |
2048 | || TYPE_CODE (t) == TYPE_CODE_STRING) && TYPE_NFIELDS (t) == 1 | |
2049 | && TYPE_CODE (TYPE_INDEX_TYPE (t)) == TYPE_CODE_RANGE) | |
2050 | { | |
2051 | LONGEST low_bound, high_bound; | |
2052 | struct type *elt_type = check_typedef (TYPE_TARGET_TYPE (t)); | |
2053 | ||
2054 | get_discrete_bounds (TYPE_INDEX_TYPE (t), &low_bound, &high_bound); | |
2055 | ||
2056 | return high_bound == low_bound && is_scalar_type_recursive (elt_type); | |
2057 | } | |
2058 | /* Are we dealing with a struct with one element? */ | |
2059 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT && TYPE_NFIELDS (t) == 1) | |
2060 | return is_scalar_type_recursive (TYPE_FIELD_TYPE (t, 0)); | |
2061 | else if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
2062 | { | |
2063 | int i, n = TYPE_NFIELDS (t); | |
2064 | ||
2065 | /* If all elements of the union are scalar, then the union is scalar. */ | |
2066 | for (i = 0; i < n; i++) | |
2067 | if (!is_scalar_type_recursive (TYPE_FIELD_TYPE (t, i))) | |
2068 | return 0; | |
2069 | ||
2070 | return 1; | |
2071 | } | |
2072 | ||
2073 | return 0; | |
2074 | } | |
2075 | ||
4e8f195d TT |
2076 | /* A helper function which returns true if types A and B represent the |
2077 | "same" class type. This is true if the types have the same main | |
2078 | type, or the same name. */ | |
2079 | ||
2080 | int | |
2081 | class_types_same_p (const struct type *a, const struct type *b) | |
2082 | { | |
2083 | return (TYPE_MAIN_TYPE (a) == TYPE_MAIN_TYPE (b) | |
2084 | || (TYPE_NAME (a) && TYPE_NAME (b) | |
2085 | && !strcmp (TYPE_NAME (a), TYPE_NAME (b)))); | |
2086 | } | |
2087 | ||
a9d5ef47 SW |
2088 | /* If BASE is an ancestor of DCLASS return the distance between them. |
2089 | otherwise return -1; | |
2090 | eg: | |
2091 | ||
2092 | class A {}; | |
2093 | class B: public A {}; | |
2094 | class C: public B {}; | |
2095 | class D: C {}; | |
2096 | ||
2097 | distance_to_ancestor (A, A, 0) = 0 | |
2098 | distance_to_ancestor (A, B, 0) = 1 | |
2099 | distance_to_ancestor (A, C, 0) = 2 | |
2100 | distance_to_ancestor (A, D, 0) = 3 | |
2101 | ||
2102 | If PUBLIC is 1 then only public ancestors are considered, | |
2103 | and the function returns the distance only if BASE is a public ancestor | |
2104 | of DCLASS. | |
2105 | Eg: | |
2106 | ||
0963b4bd | 2107 | distance_to_ancestor (A, D, 1) = -1. */ |
c906108c | 2108 | |
0526b37a | 2109 | static int |
a9d5ef47 | 2110 | distance_to_ancestor (struct type *base, struct type *dclass, int public) |
c906108c SS |
2111 | { |
2112 | int i; | |
a9d5ef47 | 2113 | int d; |
c5aa993b | 2114 | |
c906108c SS |
2115 | CHECK_TYPEDEF (base); |
2116 | CHECK_TYPEDEF (dclass); | |
2117 | ||
4e8f195d | 2118 | if (class_types_same_p (base, dclass)) |
a9d5ef47 | 2119 | return 0; |
c906108c SS |
2120 | |
2121 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
4e8f195d | 2122 | { |
0526b37a SW |
2123 | if (public && ! BASETYPE_VIA_PUBLIC (dclass, i)) |
2124 | continue; | |
2125 | ||
a9d5ef47 SW |
2126 | d = distance_to_ancestor (base, TYPE_BASECLASS (dclass, i), public); |
2127 | if (d >= 0) | |
2128 | return 1 + d; | |
4e8f195d | 2129 | } |
c906108c | 2130 | |
a9d5ef47 | 2131 | return -1; |
c906108c | 2132 | } |
4e8f195d | 2133 | |
0526b37a SW |
2134 | /* Check whether BASE is an ancestor or base class or DCLASS |
2135 | Return 1 if so, and 0 if not. | |
2136 | Note: If BASE and DCLASS are of the same type, this function | |
2137 | will return 1. So for some class A, is_ancestor (A, A) will | |
2138 | return 1. */ | |
2139 | ||
2140 | int | |
2141 | is_ancestor (struct type *base, struct type *dclass) | |
2142 | { | |
a9d5ef47 | 2143 | return distance_to_ancestor (base, dclass, 0) >= 0; |
0526b37a SW |
2144 | } |
2145 | ||
4e8f195d TT |
2146 | /* Like is_ancestor, but only returns true when BASE is a public |
2147 | ancestor of DCLASS. */ | |
2148 | ||
2149 | int | |
2150 | is_public_ancestor (struct type *base, struct type *dclass) | |
2151 | { | |
a9d5ef47 | 2152 | return distance_to_ancestor (base, dclass, 1) >= 0; |
4e8f195d TT |
2153 | } |
2154 | ||
2155 | /* A helper function for is_unique_ancestor. */ | |
2156 | ||
2157 | static int | |
2158 | is_unique_ancestor_worker (struct type *base, struct type *dclass, | |
2159 | int *offset, | |
8af8e3bc PA |
2160 | const gdb_byte *valaddr, int embedded_offset, |
2161 | CORE_ADDR address, struct value *val) | |
4e8f195d TT |
2162 | { |
2163 | int i, count = 0; | |
2164 | ||
2165 | CHECK_TYPEDEF (base); | |
2166 | CHECK_TYPEDEF (dclass); | |
2167 | ||
2168 | for (i = 0; i < TYPE_N_BASECLASSES (dclass) && count < 2; ++i) | |
2169 | { | |
8af8e3bc PA |
2170 | struct type *iter; |
2171 | int this_offset; | |
4e8f195d | 2172 | |
8af8e3bc PA |
2173 | iter = check_typedef (TYPE_BASECLASS (dclass, i)); |
2174 | ||
2175 | this_offset = baseclass_offset (dclass, i, valaddr, embedded_offset, | |
2176 | address, val); | |
4e8f195d TT |
2177 | |
2178 | if (class_types_same_p (base, iter)) | |
2179 | { | |
2180 | /* If this is the first subclass, set *OFFSET and set count | |
2181 | to 1. Otherwise, if this is at the same offset as | |
2182 | previous instances, do nothing. Otherwise, increment | |
2183 | count. */ | |
2184 | if (*offset == -1) | |
2185 | { | |
2186 | *offset = this_offset; | |
2187 | count = 1; | |
2188 | } | |
2189 | else if (this_offset == *offset) | |
2190 | { | |
2191 | /* Nothing. */ | |
2192 | } | |
2193 | else | |
2194 | ++count; | |
2195 | } | |
2196 | else | |
2197 | count += is_unique_ancestor_worker (base, iter, offset, | |
8af8e3bc PA |
2198 | valaddr, |
2199 | embedded_offset + this_offset, | |
2200 | address, val); | |
4e8f195d TT |
2201 | } |
2202 | ||
2203 | return count; | |
2204 | } | |
2205 | ||
2206 | /* Like is_ancestor, but only returns true if BASE is a unique base | |
2207 | class of the type of VAL. */ | |
2208 | ||
2209 | int | |
2210 | is_unique_ancestor (struct type *base, struct value *val) | |
2211 | { | |
2212 | int offset = -1; | |
2213 | ||
2214 | return is_unique_ancestor_worker (base, value_type (val), &offset, | |
8af8e3bc PA |
2215 | value_contents_for_printing (val), |
2216 | value_embedded_offset (val), | |
2217 | value_address (val), val) == 1; | |
4e8f195d TT |
2218 | } |
2219 | ||
c906108c SS |
2220 | \f |
2221 | ||
6403aeea SW |
2222 | /* Return the sum of the rank of A with the rank of B. */ |
2223 | ||
2224 | struct rank | |
2225 | sum_ranks (struct rank a, struct rank b) | |
2226 | { | |
2227 | struct rank c; | |
2228 | c.rank = a.rank + b.rank; | |
a9d5ef47 | 2229 | c.subrank = a.subrank + b.subrank; |
6403aeea SW |
2230 | return c; |
2231 | } | |
2232 | ||
2233 | /* Compare rank A and B and return: | |
2234 | 0 if a = b | |
2235 | 1 if a is better than b | |
2236 | -1 if b is better than a. */ | |
2237 | ||
2238 | int | |
2239 | compare_ranks (struct rank a, struct rank b) | |
2240 | { | |
2241 | if (a.rank == b.rank) | |
a9d5ef47 SW |
2242 | { |
2243 | if (a.subrank == b.subrank) | |
2244 | return 0; | |
2245 | if (a.subrank < b.subrank) | |
2246 | return 1; | |
2247 | if (a.subrank > b.subrank) | |
2248 | return -1; | |
2249 | } | |
6403aeea SW |
2250 | |
2251 | if (a.rank < b.rank) | |
2252 | return 1; | |
2253 | ||
0963b4bd | 2254 | /* a.rank > b.rank */ |
6403aeea SW |
2255 | return -1; |
2256 | } | |
c5aa993b | 2257 | |
0963b4bd | 2258 | /* Functions for overload resolution begin here. */ |
c906108c SS |
2259 | |
2260 | /* Compare two badness vectors A and B and return the result. | |
7ba81444 MS |
2261 | 0 => A and B are identical |
2262 | 1 => A and B are incomparable | |
2263 | 2 => A is better than B | |
2264 | 3 => A is worse than B */ | |
c906108c SS |
2265 | |
2266 | int | |
fba45db2 | 2267 | compare_badness (struct badness_vector *a, struct badness_vector *b) |
c906108c SS |
2268 | { |
2269 | int i; | |
2270 | int tmp; | |
c5aa993b JM |
2271 | short found_pos = 0; /* any positives in c? */ |
2272 | short found_neg = 0; /* any negatives in c? */ | |
2273 | ||
2274 | /* differing lengths => incomparable */ | |
c906108c SS |
2275 | if (a->length != b->length) |
2276 | return 1; | |
2277 | ||
c5aa993b JM |
2278 | /* Subtract b from a */ |
2279 | for (i = 0; i < a->length; i++) | |
c906108c | 2280 | { |
6403aeea | 2281 | tmp = compare_ranks (b->rank[i], a->rank[i]); |
c906108c | 2282 | if (tmp > 0) |
c5aa993b | 2283 | found_pos = 1; |
c906108c | 2284 | else if (tmp < 0) |
c5aa993b | 2285 | found_neg = 1; |
c906108c SS |
2286 | } |
2287 | ||
2288 | if (found_pos) | |
2289 | { | |
2290 | if (found_neg) | |
c5aa993b | 2291 | return 1; /* incomparable */ |
c906108c | 2292 | else |
c5aa993b | 2293 | return 3; /* A > B */ |
c906108c | 2294 | } |
c5aa993b JM |
2295 | else |
2296 | /* no positives */ | |
c906108c SS |
2297 | { |
2298 | if (found_neg) | |
c5aa993b | 2299 | return 2; /* A < B */ |
c906108c | 2300 | else |
c5aa993b | 2301 | return 0; /* A == B */ |
c906108c SS |
2302 | } |
2303 | } | |
2304 | ||
7ba81444 MS |
2305 | /* Rank a function by comparing its parameter types (PARMS, length |
2306 | NPARMS), to the types of an argument list (ARGS, length NARGS). | |
2307 | Return a pointer to a badness vector. This has NARGS + 1 | |
2308 | entries. */ | |
c906108c SS |
2309 | |
2310 | struct badness_vector * | |
7ba81444 | 2311 | rank_function (struct type **parms, int nparms, |
da096638 | 2312 | struct value **args, int nargs) |
c906108c SS |
2313 | { |
2314 | int i; | |
c5aa993b | 2315 | struct badness_vector *bv; |
c906108c SS |
2316 | int min_len = nparms < nargs ? nparms : nargs; |
2317 | ||
2318 | bv = xmalloc (sizeof (struct badness_vector)); | |
0963b4bd | 2319 | bv->length = nargs + 1; /* add 1 for the length-match rank. */ |
c906108c SS |
2320 | bv->rank = xmalloc ((nargs + 1) * sizeof (int)); |
2321 | ||
2322 | /* First compare the lengths of the supplied lists. | |
7ba81444 | 2323 | If there is a mismatch, set it to a high value. */ |
c5aa993b | 2324 | |
c906108c | 2325 | /* pai/1997-06-03 FIXME: when we have debug info about default |
7ba81444 MS |
2326 | arguments and ellipsis parameter lists, we should consider those |
2327 | and rank the length-match more finely. */ | |
c906108c | 2328 | |
6403aeea SW |
2329 | LENGTH_MATCH (bv) = (nargs != nparms) |
2330 | ? LENGTH_MISMATCH_BADNESS | |
2331 | : EXACT_MATCH_BADNESS; | |
c906108c | 2332 | |
0963b4bd | 2333 | /* Now rank all the parameters of the candidate function. */ |
74cc24b0 | 2334 | for (i = 1; i <= min_len; i++) |
da096638 KS |
2335 | bv->rank[i] = rank_one_type (parms[i - 1], value_type (args[i - 1]), |
2336 | args[i - 1]); | |
c906108c | 2337 | |
0963b4bd | 2338 | /* If more arguments than parameters, add dummy entries. */ |
c5aa993b | 2339 | for (i = min_len + 1; i <= nargs; i++) |
c906108c SS |
2340 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
2341 | ||
2342 | return bv; | |
2343 | } | |
2344 | ||
973ccf8b DJ |
2345 | /* Compare the names of two integer types, assuming that any sign |
2346 | qualifiers have been checked already. We do it this way because | |
2347 | there may be an "int" in the name of one of the types. */ | |
2348 | ||
2349 | static int | |
2350 | integer_types_same_name_p (const char *first, const char *second) | |
2351 | { | |
2352 | int first_p, second_p; | |
2353 | ||
7ba81444 MS |
2354 | /* If both are shorts, return 1; if neither is a short, keep |
2355 | checking. */ | |
973ccf8b DJ |
2356 | first_p = (strstr (first, "short") != NULL); |
2357 | second_p = (strstr (second, "short") != NULL); | |
2358 | if (first_p && second_p) | |
2359 | return 1; | |
2360 | if (first_p || second_p) | |
2361 | return 0; | |
2362 | ||
2363 | /* Likewise for long. */ | |
2364 | first_p = (strstr (first, "long") != NULL); | |
2365 | second_p = (strstr (second, "long") != NULL); | |
2366 | if (first_p && second_p) | |
2367 | return 1; | |
2368 | if (first_p || second_p) | |
2369 | return 0; | |
2370 | ||
2371 | /* Likewise for char. */ | |
2372 | first_p = (strstr (first, "char") != NULL); | |
2373 | second_p = (strstr (second, "char") != NULL); | |
2374 | if (first_p && second_p) | |
2375 | return 1; | |
2376 | if (first_p || second_p) | |
2377 | return 0; | |
2378 | ||
2379 | /* They must both be ints. */ | |
2380 | return 1; | |
2381 | } | |
2382 | ||
7062b0a0 SW |
2383 | /* Compares type A to type B returns 1 if the represent the same type |
2384 | 0 otherwise. */ | |
2385 | ||
2386 | static int | |
2387 | types_equal (struct type *a, struct type *b) | |
2388 | { | |
2389 | /* Identical type pointers. */ | |
2390 | /* However, this still doesn't catch all cases of same type for b | |
2391 | and a. The reason is that builtin types are different from | |
2392 | the same ones constructed from the object. */ | |
2393 | if (a == b) | |
2394 | return 1; | |
2395 | ||
2396 | /* Resolve typedefs */ | |
2397 | if (TYPE_CODE (a) == TYPE_CODE_TYPEDEF) | |
2398 | a = check_typedef (a); | |
2399 | if (TYPE_CODE (b) == TYPE_CODE_TYPEDEF) | |
2400 | b = check_typedef (b); | |
2401 | ||
2402 | /* If after resolving typedefs a and b are not of the same type | |
2403 | code then they are not equal. */ | |
2404 | if (TYPE_CODE (a) != TYPE_CODE (b)) | |
2405 | return 0; | |
2406 | ||
2407 | /* If a and b are both pointers types or both reference types then | |
2408 | they are equal of the same type iff the objects they refer to are | |
2409 | of the same type. */ | |
2410 | if (TYPE_CODE (a) == TYPE_CODE_PTR | |
2411 | || TYPE_CODE (a) == TYPE_CODE_REF) | |
2412 | return types_equal (TYPE_TARGET_TYPE (a), | |
2413 | TYPE_TARGET_TYPE (b)); | |
2414 | ||
0963b4bd | 2415 | /* Well, damnit, if the names are exactly the same, I'll say they |
7062b0a0 SW |
2416 | are exactly the same. This happens when we generate method |
2417 | stubs. The types won't point to the same address, but they | |
0963b4bd | 2418 | really are the same. */ |
7062b0a0 SW |
2419 | |
2420 | if (TYPE_NAME (a) && TYPE_NAME (b) | |
2421 | && strcmp (TYPE_NAME (a), TYPE_NAME (b)) == 0) | |
2422 | return 1; | |
2423 | ||
2424 | /* Check if identical after resolving typedefs. */ | |
2425 | if (a == b) | |
2426 | return 1; | |
2427 | ||
2428 | return 0; | |
2429 | } | |
2430 | ||
c906108c SS |
2431 | /* Compare one type (PARM) for compatibility with another (ARG). |
2432 | * PARM is intended to be the parameter type of a function; and | |
2433 | * ARG is the supplied argument's type. This function tests if | |
2434 | * the latter can be converted to the former. | |
da096638 | 2435 | * VALUE is the argument's value or NULL if none (or called recursively) |
c906108c SS |
2436 | * |
2437 | * Return 0 if they are identical types; | |
2438 | * Otherwise, return an integer which corresponds to how compatible | |
7ba81444 MS |
2439 | * PARM is to ARG. The higher the return value, the worse the match. |
2440 | * Generally the "bad" conversions are all uniformly assigned a 100. */ | |
c906108c | 2441 | |
6403aeea | 2442 | struct rank |
da096638 | 2443 | rank_one_type (struct type *parm, struct type *arg, struct value *value) |
c906108c | 2444 | { |
a9d5ef47 | 2445 | struct rank rank = {0,0}; |
7062b0a0 SW |
2446 | |
2447 | if (types_equal (parm, arg)) | |
6403aeea | 2448 | return EXACT_MATCH_BADNESS; |
c906108c SS |
2449 | |
2450 | /* Resolve typedefs */ | |
2451 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
2452 | parm = check_typedef (parm); | |
2453 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
2454 | arg = check_typedef (arg); | |
2455 | ||
db577aea | 2456 | /* See through references, since we can almost make non-references |
7ba81444 | 2457 | references. */ |
db577aea | 2458 | if (TYPE_CODE (arg) == TYPE_CODE_REF) |
da096638 | 2459 | return (sum_ranks (rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL), |
6403aeea | 2460 | REFERENCE_CONVERSION_BADNESS)); |
db577aea | 2461 | if (TYPE_CODE (parm) == TYPE_CODE_REF) |
da096638 | 2462 | return (sum_ranks (rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL), |
6403aeea | 2463 | REFERENCE_CONVERSION_BADNESS)); |
5d161b24 | 2464 | if (overload_debug) |
7ba81444 MS |
2465 | /* Debugging only. */ |
2466 | fprintf_filtered (gdb_stderr, | |
2467 | "------ Arg is %s [%d], parm is %s [%d]\n", | |
2468 | TYPE_NAME (arg), TYPE_CODE (arg), | |
2469 | TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c | 2470 | |
0963b4bd | 2471 | /* x -> y means arg of type x being supplied for parameter of type y. */ |
c906108c SS |
2472 | |
2473 | switch (TYPE_CODE (parm)) | |
2474 | { | |
c5aa993b JM |
2475 | case TYPE_CODE_PTR: |
2476 | switch (TYPE_CODE (arg)) | |
2477 | { | |
2478 | case TYPE_CODE_PTR: | |
7062b0a0 SW |
2479 | |
2480 | /* Allowed pointer conversions are: | |
2481 | (a) pointer to void-pointer conversion. */ | |
2482 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) | |
c5aa993b | 2483 | return VOID_PTR_CONVERSION_BADNESS; |
7062b0a0 SW |
2484 | |
2485 | /* (b) pointer to ancestor-pointer conversion. */ | |
a9d5ef47 SW |
2486 | rank.subrank = distance_to_ancestor (TYPE_TARGET_TYPE (parm), |
2487 | TYPE_TARGET_TYPE (arg), | |
2488 | 0); | |
2489 | if (rank.subrank >= 0) | |
2490 | return sum_ranks (BASE_PTR_CONVERSION_BADNESS, rank); | |
7062b0a0 SW |
2491 | |
2492 | return INCOMPATIBLE_TYPE_BADNESS; | |
c5aa993b | 2493 | case TYPE_CODE_ARRAY: |
7062b0a0 SW |
2494 | if (types_equal (TYPE_TARGET_TYPE (parm), |
2495 | TYPE_TARGET_TYPE (arg))) | |
6403aeea | 2496 | return EXACT_MATCH_BADNESS; |
7062b0a0 | 2497 | return INCOMPATIBLE_TYPE_BADNESS; |
c5aa993b | 2498 | case TYPE_CODE_FUNC: |
da096638 | 2499 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg, NULL); |
c5aa993b | 2500 | case TYPE_CODE_INT: |
da096638 KS |
2501 | if (value != NULL && TYPE_CODE (value_type (value)) == TYPE_CODE_INT |
2502 | && value_as_long (value) == 0) | |
2503 | { | |
2504 | /* Null pointer conversion: allow it to be cast to a pointer. | |
2505 | [4.10.1 of C++ standard draft n3290] */ | |
2506 | return NULL_POINTER_CONVERSION_BADNESS; | |
2507 | } | |
2508 | /* fall through */ | |
c5aa993b | 2509 | case TYPE_CODE_ENUM: |
4f2aea11 | 2510 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
2511 | case TYPE_CODE_CHAR: |
2512 | case TYPE_CODE_RANGE: | |
2513 | case TYPE_CODE_BOOL: | |
c5aa993b JM |
2514 | default: |
2515 | return INCOMPATIBLE_TYPE_BADNESS; | |
2516 | } | |
2517 | case TYPE_CODE_ARRAY: | |
2518 | switch (TYPE_CODE (arg)) | |
2519 | { | |
2520 | case TYPE_CODE_PTR: | |
2521 | case TYPE_CODE_ARRAY: | |
7ba81444 | 2522 | return rank_one_type (TYPE_TARGET_TYPE (parm), |
da096638 | 2523 | TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
2524 | default: |
2525 | return INCOMPATIBLE_TYPE_BADNESS; | |
2526 | } | |
2527 | case TYPE_CODE_FUNC: | |
2528 | switch (TYPE_CODE (arg)) | |
2529 | { | |
2530 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
da096638 | 2531 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg), NULL); |
c5aa993b JM |
2532 | default: |
2533 | return INCOMPATIBLE_TYPE_BADNESS; | |
2534 | } | |
2535 | case TYPE_CODE_INT: | |
2536 | switch (TYPE_CODE (arg)) | |
2537 | { | |
2538 | case TYPE_CODE_INT: | |
2539 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2540 | { | |
2541 | /* Deal with signed, unsigned, and plain chars and | |
7ba81444 | 2542 | signed and unsigned ints. */ |
c5aa993b JM |
2543 | if (TYPE_NOSIGN (parm)) |
2544 | { | |
0963b4bd | 2545 | /* This case only for character types. */ |
7ba81444 | 2546 | if (TYPE_NOSIGN (arg)) |
6403aeea | 2547 | return EXACT_MATCH_BADNESS; /* plain char -> plain char */ |
7ba81444 MS |
2548 | else /* signed/unsigned char -> plain char */ |
2549 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
2550 | } |
2551 | else if (TYPE_UNSIGNED (parm)) | |
2552 | { | |
2553 | if (TYPE_UNSIGNED (arg)) | |
2554 | { | |
7ba81444 MS |
2555 | /* unsigned int -> unsigned int, or |
2556 | unsigned long -> unsigned long */ | |
2557 | if (integer_types_same_name_p (TYPE_NAME (parm), | |
2558 | TYPE_NAME (arg))) | |
6403aeea | 2559 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
2560 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
2561 | "int") | |
2562 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2563 | "long")) | |
3e43a32a MS |
2564 | /* unsigned int -> unsigned long */ |
2565 | return INTEGER_PROMOTION_BADNESS; | |
c5aa993b | 2566 | else |
3e43a32a MS |
2567 | /* unsigned long -> unsigned int */ |
2568 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
2569 | } |
2570 | else | |
2571 | { | |
7ba81444 MS |
2572 | if (integer_types_same_name_p (TYPE_NAME (arg), |
2573 | "long") | |
2574 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2575 | "int")) | |
3e43a32a MS |
2576 | /* signed long -> unsigned int */ |
2577 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b | 2578 | else |
3e43a32a MS |
2579 | /* signed int/long -> unsigned int/long */ |
2580 | return INTEGER_CONVERSION_BADNESS; | |
c5aa993b JM |
2581 | } |
2582 | } | |
2583 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2584 | { | |
7ba81444 MS |
2585 | if (integer_types_same_name_p (TYPE_NAME (parm), |
2586 | TYPE_NAME (arg))) | |
6403aeea | 2587 | return EXACT_MATCH_BADNESS; |
7ba81444 MS |
2588 | else if (integer_types_same_name_p (TYPE_NAME (arg), |
2589 | "int") | |
2590 | && integer_types_same_name_p (TYPE_NAME (parm), | |
2591 | "long")) | |
c5aa993b JM |
2592 | return INTEGER_PROMOTION_BADNESS; |
2593 | else | |
1c5cb38e | 2594 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2595 | } |
2596 | else | |
1c5cb38e | 2597 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2598 | } |
2599 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2600 | return INTEGER_PROMOTION_BADNESS; | |
2601 | else | |
1c5cb38e | 2602 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b | 2603 | case TYPE_CODE_ENUM: |
4f2aea11 | 2604 | case TYPE_CODE_FLAGS: |
c5aa993b JM |
2605 | case TYPE_CODE_CHAR: |
2606 | case TYPE_CODE_RANGE: | |
2607 | case TYPE_CODE_BOOL: | |
2608 | return INTEGER_PROMOTION_BADNESS; | |
2609 | case TYPE_CODE_FLT: | |
2610 | return INT_FLOAT_CONVERSION_BADNESS; | |
2611 | case TYPE_CODE_PTR: | |
2612 | return NS_POINTER_CONVERSION_BADNESS; | |
2613 | default: | |
2614 | return INCOMPATIBLE_TYPE_BADNESS; | |
2615 | } | |
2616 | break; | |
2617 | case TYPE_CODE_ENUM: | |
2618 | switch (TYPE_CODE (arg)) | |
2619 | { | |
2620 | case TYPE_CODE_INT: | |
2621 | case TYPE_CODE_CHAR: | |
2622 | case TYPE_CODE_RANGE: | |
2623 | case TYPE_CODE_BOOL: | |
2624 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2625 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2626 | case TYPE_CODE_FLT: |
2627 | return INT_FLOAT_CONVERSION_BADNESS; | |
2628 | default: | |
2629 | return INCOMPATIBLE_TYPE_BADNESS; | |
2630 | } | |
2631 | break; | |
2632 | case TYPE_CODE_CHAR: | |
2633 | switch (TYPE_CODE (arg)) | |
2634 | { | |
2635 | case TYPE_CODE_RANGE: | |
2636 | case TYPE_CODE_BOOL: | |
2637 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2638 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2639 | case TYPE_CODE_FLT: |
2640 | return INT_FLOAT_CONVERSION_BADNESS; | |
2641 | case TYPE_CODE_INT: | |
2642 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
1c5cb38e | 2643 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2644 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) |
2645 | return INTEGER_PROMOTION_BADNESS; | |
2646 | /* >>> !! else fall through !! <<< */ | |
2647 | case TYPE_CODE_CHAR: | |
7ba81444 MS |
2648 | /* Deal with signed, unsigned, and plain chars for C++ and |
2649 | with int cases falling through from previous case. */ | |
c5aa993b JM |
2650 | if (TYPE_NOSIGN (parm)) |
2651 | { | |
2652 | if (TYPE_NOSIGN (arg)) | |
6403aeea | 2653 | return EXACT_MATCH_BADNESS; |
c5aa993b | 2654 | else |
1c5cb38e | 2655 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2656 | } |
2657 | else if (TYPE_UNSIGNED (parm)) | |
2658 | { | |
2659 | if (TYPE_UNSIGNED (arg)) | |
6403aeea | 2660 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
2661 | else |
2662 | return INTEGER_PROMOTION_BADNESS; | |
2663 | } | |
2664 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
6403aeea | 2665 | return EXACT_MATCH_BADNESS; |
c5aa993b | 2666 | else |
1c5cb38e | 2667 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2668 | default: |
2669 | return INCOMPATIBLE_TYPE_BADNESS; | |
2670 | } | |
2671 | break; | |
2672 | case TYPE_CODE_RANGE: | |
2673 | switch (TYPE_CODE (arg)) | |
2674 | { | |
2675 | case TYPE_CODE_INT: | |
2676 | case TYPE_CODE_CHAR: | |
2677 | case TYPE_CODE_RANGE: | |
2678 | case TYPE_CODE_BOOL: | |
2679 | case TYPE_CODE_ENUM: | |
1c5cb38e | 2680 | return INTEGER_CONVERSION_BADNESS; |
c5aa993b JM |
2681 | case TYPE_CODE_FLT: |
2682 | return INT_FLOAT_CONVERSION_BADNESS; | |
2683 | default: | |
2684 | return INCOMPATIBLE_TYPE_BADNESS; | |
2685 | } | |
2686 | break; | |
2687 | case TYPE_CODE_BOOL: | |
2688 | switch (TYPE_CODE (arg)) | |
2689 | { | |
2690 | case TYPE_CODE_INT: | |
2691 | case TYPE_CODE_CHAR: | |
2692 | case TYPE_CODE_RANGE: | |
2693 | case TYPE_CODE_ENUM: | |
2694 | case TYPE_CODE_FLT: | |
026ffab7 | 2695 | return INCOMPATIBLE_TYPE_BADNESS; |
c5aa993b | 2696 | case TYPE_CODE_PTR: |
026ffab7 | 2697 | return BOOL_PTR_CONVERSION_BADNESS; |
c5aa993b | 2698 | case TYPE_CODE_BOOL: |
6403aeea | 2699 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
2700 | default: |
2701 | return INCOMPATIBLE_TYPE_BADNESS; | |
2702 | } | |
2703 | break; | |
2704 | case TYPE_CODE_FLT: | |
2705 | switch (TYPE_CODE (arg)) | |
2706 | { | |
2707 | case TYPE_CODE_FLT: | |
2708 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2709 | return FLOAT_PROMOTION_BADNESS; | |
2710 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
6403aeea | 2711 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
2712 | else |
2713 | return FLOAT_CONVERSION_BADNESS; | |
2714 | case TYPE_CODE_INT: | |
2715 | case TYPE_CODE_BOOL: | |
2716 | case TYPE_CODE_ENUM: | |
2717 | case TYPE_CODE_RANGE: | |
2718 | case TYPE_CODE_CHAR: | |
2719 | return INT_FLOAT_CONVERSION_BADNESS; | |
2720 | default: | |
2721 | return INCOMPATIBLE_TYPE_BADNESS; | |
2722 | } | |
2723 | break; | |
2724 | case TYPE_CODE_COMPLEX: | |
2725 | switch (TYPE_CODE (arg)) | |
7ba81444 | 2726 | { /* Strictly not needed for C++, but... */ |
c5aa993b JM |
2727 | case TYPE_CODE_FLT: |
2728 | return FLOAT_PROMOTION_BADNESS; | |
2729 | case TYPE_CODE_COMPLEX: | |
6403aeea | 2730 | return EXACT_MATCH_BADNESS; |
c5aa993b JM |
2731 | default: |
2732 | return INCOMPATIBLE_TYPE_BADNESS; | |
2733 | } | |
2734 | break; | |
2735 | case TYPE_CODE_STRUCT: | |
0963b4bd | 2736 | /* currently same as TYPE_CODE_CLASS. */ |
c5aa993b JM |
2737 | switch (TYPE_CODE (arg)) |
2738 | { | |
2739 | case TYPE_CODE_STRUCT: | |
2740 | /* Check for derivation */ | |
a9d5ef47 SW |
2741 | rank.subrank = distance_to_ancestor (parm, arg, 0); |
2742 | if (rank.subrank >= 0) | |
2743 | return sum_ranks (BASE_CONVERSION_BADNESS, rank); | |
c5aa993b JM |
2744 | /* else fall through */ |
2745 | default: | |
2746 | return INCOMPATIBLE_TYPE_BADNESS; | |
2747 | } | |
2748 | break; | |
2749 | case TYPE_CODE_UNION: | |
2750 | switch (TYPE_CODE (arg)) | |
2751 | { | |
2752 | case TYPE_CODE_UNION: | |
2753 | default: | |
2754 | return INCOMPATIBLE_TYPE_BADNESS; | |
2755 | } | |
2756 | break; | |
0d5de010 | 2757 | case TYPE_CODE_MEMBERPTR: |
c5aa993b JM |
2758 | switch (TYPE_CODE (arg)) |
2759 | { | |
2760 | default: | |
2761 | return INCOMPATIBLE_TYPE_BADNESS; | |
2762 | } | |
2763 | break; | |
2764 | case TYPE_CODE_METHOD: | |
2765 | switch (TYPE_CODE (arg)) | |
2766 | { | |
2767 | ||
2768 | default: | |
2769 | return INCOMPATIBLE_TYPE_BADNESS; | |
2770 | } | |
2771 | break; | |
2772 | case TYPE_CODE_REF: | |
2773 | switch (TYPE_CODE (arg)) | |
2774 | { | |
2775 | ||
2776 | default: | |
2777 | return INCOMPATIBLE_TYPE_BADNESS; | |
2778 | } | |
2779 | ||
2780 | break; | |
2781 | case TYPE_CODE_SET: | |
2782 | switch (TYPE_CODE (arg)) | |
2783 | { | |
2784 | /* Not in C++ */ | |
2785 | case TYPE_CODE_SET: | |
7ba81444 | 2786 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), |
da096638 | 2787 | TYPE_FIELD_TYPE (arg, 0), NULL); |
c5aa993b JM |
2788 | default: |
2789 | return INCOMPATIBLE_TYPE_BADNESS; | |
2790 | } | |
2791 | break; | |
2792 | case TYPE_CODE_VOID: | |
2793 | default: | |
2794 | return INCOMPATIBLE_TYPE_BADNESS; | |
2795 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
2796 | } |
2797 | ||
c5aa993b | 2798 | |
0963b4bd | 2799 | /* End of functions for overload resolution. */ |
c906108c | 2800 | |
c906108c | 2801 | static void |
fba45db2 | 2802 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
2803 | { |
2804 | int bitno; | |
2805 | ||
2806 | for (bitno = 0; bitno < nbits; bitno++) | |
2807 | { | |
2808 | if ((bitno % 8) == 0) | |
2809 | { | |
2810 | puts_filtered (" "); | |
2811 | } | |
2812 | if (B_TST (bits, bitno)) | |
a3f17187 | 2813 | printf_filtered (("1")); |
c906108c | 2814 | else |
a3f17187 | 2815 | printf_filtered (("0")); |
c906108c SS |
2816 | } |
2817 | } | |
2818 | ||
ad2f7632 | 2819 | /* Note the first arg should be the "this" pointer, we may not want to |
7ba81444 MS |
2820 | include it since we may get into a infinitely recursive |
2821 | situation. */ | |
c906108c SS |
2822 | |
2823 | static void | |
ad2f7632 | 2824 | print_arg_types (struct field *args, int nargs, int spaces) |
c906108c SS |
2825 | { |
2826 | if (args != NULL) | |
2827 | { | |
ad2f7632 DJ |
2828 | int i; |
2829 | ||
2830 | for (i = 0; i < nargs; i++) | |
2831 | recursive_dump_type (args[i].type, spaces + 2); | |
c906108c SS |
2832 | } |
2833 | } | |
2834 | ||
d6a843b5 JK |
2835 | int |
2836 | field_is_static (struct field *f) | |
2837 | { | |
2838 | /* "static" fields are the fields whose location is not relative | |
2839 | to the address of the enclosing struct. It would be nice to | |
2840 | have a dedicated flag that would be set for static fields when | |
2841 | the type is being created. But in practice, checking the field | |
254e6b9e | 2842 | loc_kind should give us an accurate answer. */ |
d6a843b5 JK |
2843 | return (FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSNAME |
2844 | || FIELD_LOC_KIND (*f) == FIELD_LOC_KIND_PHYSADDR); | |
2845 | } | |
2846 | ||
c906108c | 2847 | static void |
fba45db2 | 2848 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
2849 | { |
2850 | int method_idx; | |
2851 | int overload_idx; | |
2852 | struct fn_field *f; | |
2853 | ||
2854 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 2855 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
2856 | printf_filtered ("\n"); |
2857 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
2858 | { | |
2859 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
2860 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
2861 | method_idx, | |
2862 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
2863 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
2864 | gdb_stdout); | |
a3f17187 | 2865 | printf_filtered (_(") length %d\n"), |
c906108c SS |
2866 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
2867 | for (overload_idx = 0; | |
2868 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
2869 | overload_idx++) | |
2870 | { | |
2871 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
2872 | overload_idx, | |
2873 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
2874 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
2875 | gdb_stdout); | |
c906108c SS |
2876 | printf_filtered (")\n"); |
2877 | printfi_filtered (spaces + 8, "type "); | |
7ba81444 MS |
2878 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
2879 | gdb_stdout); | |
c906108c SS |
2880 | printf_filtered ("\n"); |
2881 | ||
2882 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
2883 | spaces + 8 + 2); | |
2884 | ||
2885 | printfi_filtered (spaces + 8, "args "); | |
7ba81444 MS |
2886 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
2887 | gdb_stdout); | |
c906108c SS |
2888 | printf_filtered ("\n"); |
2889 | ||
ad2f7632 | 2890 | print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), |
7ba81444 MS |
2891 | TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, |
2892 | overload_idx)), | |
ad2f7632 | 2893 | spaces); |
c906108c | 2894 | printfi_filtered (spaces + 8, "fcontext "); |
d4f3574e SS |
2895 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
2896 | gdb_stdout); | |
c906108c SS |
2897 | printf_filtered ("\n"); |
2898 | ||
2899 | printfi_filtered (spaces + 8, "is_const %d\n", | |
2900 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
2901 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
2902 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
2903 | printfi_filtered (spaces + 8, "is_private %d\n", | |
2904 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
2905 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
2906 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
2907 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
2908 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
2909 | printfi_filtered (spaces + 8, "voffset %u\n", | |
2910 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
2911 | } | |
2912 | } | |
2913 | } | |
2914 | ||
2915 | static void | |
fba45db2 | 2916 | print_cplus_stuff (struct type *type, int spaces) |
c906108c SS |
2917 | { |
2918 | printfi_filtered (spaces, "n_baseclasses %d\n", | |
2919 | TYPE_N_BASECLASSES (type)); | |
2920 | printfi_filtered (spaces, "nfn_fields %d\n", | |
2921 | TYPE_NFN_FIELDS (type)); | |
c906108c SS |
2922 | if (TYPE_N_BASECLASSES (type) > 0) |
2923 | { | |
2924 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
2925 | TYPE_N_BASECLASSES (type)); | |
7ba81444 MS |
2926 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
2927 | gdb_stdout); | |
c906108c SS |
2928 | printf_filtered (")"); |
2929 | ||
2930 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
2931 | TYPE_N_BASECLASSES (type)); | |
2932 | puts_filtered ("\n"); | |
2933 | } | |
2934 | if (TYPE_NFIELDS (type) > 0) | |
2935 | { | |
2936 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
2937 | { | |
7ba81444 MS |
2938 | printfi_filtered (spaces, |
2939 | "private_field_bits (%d bits at *", | |
c906108c | 2940 | TYPE_NFIELDS (type)); |
7ba81444 MS |
2941 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
2942 | gdb_stdout); | |
c906108c SS |
2943 | printf_filtered (")"); |
2944 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
2945 | TYPE_NFIELDS (type)); | |
2946 | puts_filtered ("\n"); | |
2947 | } | |
2948 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
2949 | { | |
7ba81444 MS |
2950 | printfi_filtered (spaces, |
2951 | "protected_field_bits (%d bits at *", | |
c906108c | 2952 | TYPE_NFIELDS (type)); |
7ba81444 MS |
2953 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
2954 | gdb_stdout); | |
c906108c SS |
2955 | printf_filtered (")"); |
2956 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
2957 | TYPE_NFIELDS (type)); | |
2958 | puts_filtered ("\n"); | |
2959 | } | |
2960 | } | |
2961 | if (TYPE_NFN_FIELDS (type) > 0) | |
2962 | { | |
2963 | dump_fn_fieldlists (type, spaces); | |
2964 | } | |
2965 | } | |
2966 | ||
b4ba55a1 JB |
2967 | /* Print the contents of the TYPE's type_specific union, assuming that |
2968 | its type-specific kind is TYPE_SPECIFIC_GNAT_STUFF. */ | |
2969 | ||
2970 | static void | |
2971 | print_gnat_stuff (struct type *type, int spaces) | |
2972 | { | |
2973 | struct type *descriptive_type = TYPE_DESCRIPTIVE_TYPE (type); | |
2974 | ||
2975 | recursive_dump_type (descriptive_type, spaces + 2); | |
2976 | } | |
2977 | ||
c906108c SS |
2978 | static struct obstack dont_print_type_obstack; |
2979 | ||
2980 | void | |
fba45db2 | 2981 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
2982 | { |
2983 | int idx; | |
2984 | ||
2985 | if (spaces == 0) | |
2986 | obstack_begin (&dont_print_type_obstack, 0); | |
2987 | ||
2988 | if (TYPE_NFIELDS (type) > 0 | |
b4ba55a1 | 2989 | || (HAVE_CPLUS_STRUCT (type) && TYPE_NFN_FIELDS (type) > 0)) |
c906108c SS |
2990 | { |
2991 | struct type **first_dont_print | |
7ba81444 | 2992 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 2993 | |
7ba81444 MS |
2994 | int i = (struct type **) |
2995 | obstack_next_free (&dont_print_type_obstack) - first_dont_print; | |
c906108c SS |
2996 | |
2997 | while (--i >= 0) | |
2998 | { | |
2999 | if (type == first_dont_print[i]) | |
3000 | { | |
3001 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 3002 | gdb_print_host_address (type, gdb_stdout); |
a3f17187 | 3003 | printf_filtered (_(" <same as already seen type>\n")); |
c906108c SS |
3004 | return; |
3005 | } | |
3006 | } | |
3007 | ||
3008 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
3009 | } | |
3010 | ||
3011 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 3012 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
3013 | printf_filtered ("\n"); |
3014 | printfi_filtered (spaces, "name '%s' (", | |
3015 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 3016 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c | 3017 | printf_filtered (")\n"); |
e9e79dd9 FF |
3018 | printfi_filtered (spaces, "tagname '%s' (", |
3019 | TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>"); | |
3020 | gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); | |
3021 | printf_filtered (")\n"); | |
c906108c SS |
3022 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
3023 | switch (TYPE_CODE (type)) | |
3024 | { | |
c5aa993b JM |
3025 | case TYPE_CODE_UNDEF: |
3026 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
3027 | break; | |
3028 | case TYPE_CODE_PTR: | |
3029 | printf_filtered ("(TYPE_CODE_PTR)"); | |
3030 | break; | |
3031 | case TYPE_CODE_ARRAY: | |
3032 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
3033 | break; | |
3034 | case TYPE_CODE_STRUCT: | |
3035 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
3036 | break; | |
3037 | case TYPE_CODE_UNION: | |
3038 | printf_filtered ("(TYPE_CODE_UNION)"); | |
3039 | break; | |
3040 | case TYPE_CODE_ENUM: | |
3041 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
3042 | break; | |
4f2aea11 MK |
3043 | case TYPE_CODE_FLAGS: |
3044 | printf_filtered ("(TYPE_CODE_FLAGS)"); | |
3045 | break; | |
c5aa993b JM |
3046 | case TYPE_CODE_FUNC: |
3047 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
3048 | break; | |
3049 | case TYPE_CODE_INT: | |
3050 | printf_filtered ("(TYPE_CODE_INT)"); | |
3051 | break; | |
3052 | case TYPE_CODE_FLT: | |
3053 | printf_filtered ("(TYPE_CODE_FLT)"); | |
3054 | break; | |
3055 | case TYPE_CODE_VOID: | |
3056 | printf_filtered ("(TYPE_CODE_VOID)"); | |
3057 | break; | |
3058 | case TYPE_CODE_SET: | |
3059 | printf_filtered ("(TYPE_CODE_SET)"); | |
3060 | break; | |
3061 | case TYPE_CODE_RANGE: | |
3062 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
3063 | break; | |
3064 | case TYPE_CODE_STRING: | |
3065 | printf_filtered ("(TYPE_CODE_STRING)"); | |
3066 | break; | |
e9e79dd9 FF |
3067 | case TYPE_CODE_BITSTRING: |
3068 | printf_filtered ("(TYPE_CODE_BITSTRING)"); | |
3069 | break; | |
c5aa993b JM |
3070 | case TYPE_CODE_ERROR: |
3071 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
3072 | break; | |
0d5de010 DJ |
3073 | case TYPE_CODE_MEMBERPTR: |
3074 | printf_filtered ("(TYPE_CODE_MEMBERPTR)"); | |
3075 | break; | |
3076 | case TYPE_CODE_METHODPTR: | |
3077 | printf_filtered ("(TYPE_CODE_METHODPTR)"); | |
c5aa993b JM |
3078 | break; |
3079 | case TYPE_CODE_METHOD: | |
3080 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
3081 | break; | |
3082 | case TYPE_CODE_REF: | |
3083 | printf_filtered ("(TYPE_CODE_REF)"); | |
3084 | break; | |
3085 | case TYPE_CODE_CHAR: | |
3086 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
3087 | break; | |
3088 | case TYPE_CODE_BOOL: | |
3089 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
3090 | break; | |
e9e79dd9 FF |
3091 | case TYPE_CODE_COMPLEX: |
3092 | printf_filtered ("(TYPE_CODE_COMPLEX)"); | |
3093 | break; | |
c5aa993b JM |
3094 | case TYPE_CODE_TYPEDEF: |
3095 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
3096 | break; | |
5c4e30ca DC |
3097 | case TYPE_CODE_NAMESPACE: |
3098 | printf_filtered ("(TYPE_CODE_NAMESPACE)"); | |
3099 | break; | |
c5aa993b JM |
3100 | default: |
3101 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
3102 | break; | |
c906108c SS |
3103 | } |
3104 | puts_filtered ("\n"); | |
3105 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
e9bb382b UW |
3106 | if (TYPE_OBJFILE_OWNED (type)) |
3107 | { | |
3108 | printfi_filtered (spaces, "objfile "); | |
3109 | gdb_print_host_address (TYPE_OWNER (type).objfile, gdb_stdout); | |
3110 | } | |
3111 | else | |
3112 | { | |
3113 | printfi_filtered (spaces, "gdbarch "); | |
3114 | gdb_print_host_address (TYPE_OWNER (type).gdbarch, gdb_stdout); | |
3115 | } | |
c906108c SS |
3116 | printf_filtered ("\n"); |
3117 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 3118 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
3119 | printf_filtered ("\n"); |
3120 | if (TYPE_TARGET_TYPE (type) != NULL) | |
3121 | { | |
3122 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
3123 | } | |
3124 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 3125 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
3126 | printf_filtered ("\n"); |
3127 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 3128 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c | 3129 | printf_filtered ("\n"); |
2fdde8f8 DJ |
3130 | printfi_filtered (spaces, "type_chain "); |
3131 | gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); | |
e9e79dd9 | 3132 | printf_filtered ("\n"); |
7ba81444 MS |
3133 | printfi_filtered (spaces, "instance_flags 0x%x", |
3134 | TYPE_INSTANCE_FLAGS (type)); | |
2fdde8f8 DJ |
3135 | if (TYPE_CONST (type)) |
3136 | { | |
3137 | puts_filtered (" TYPE_FLAG_CONST"); | |
3138 | } | |
3139 | if (TYPE_VOLATILE (type)) | |
3140 | { | |
3141 | puts_filtered (" TYPE_FLAG_VOLATILE"); | |
3142 | } | |
3143 | if (TYPE_CODE_SPACE (type)) | |
3144 | { | |
3145 | puts_filtered (" TYPE_FLAG_CODE_SPACE"); | |
3146 | } | |
3147 | if (TYPE_DATA_SPACE (type)) | |
3148 | { | |
3149 | puts_filtered (" TYPE_FLAG_DATA_SPACE"); | |
3150 | } | |
8b2dbe47 KB |
3151 | if (TYPE_ADDRESS_CLASS_1 (type)) |
3152 | { | |
3153 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_1"); | |
3154 | } | |
3155 | if (TYPE_ADDRESS_CLASS_2 (type)) | |
3156 | { | |
3157 | puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_2"); | |
3158 | } | |
2fdde8f8 | 3159 | puts_filtered ("\n"); |
876cecd0 TT |
3160 | |
3161 | printfi_filtered (spaces, "flags"); | |
762a036f | 3162 | if (TYPE_UNSIGNED (type)) |
c906108c SS |
3163 | { |
3164 | puts_filtered (" TYPE_FLAG_UNSIGNED"); | |
3165 | } | |
762a036f FF |
3166 | if (TYPE_NOSIGN (type)) |
3167 | { | |
3168 | puts_filtered (" TYPE_FLAG_NOSIGN"); | |
3169 | } | |
3170 | if (TYPE_STUB (type)) | |
c906108c SS |
3171 | { |
3172 | puts_filtered (" TYPE_FLAG_STUB"); | |
3173 | } | |
762a036f FF |
3174 | if (TYPE_TARGET_STUB (type)) |
3175 | { | |
3176 | puts_filtered (" TYPE_FLAG_TARGET_STUB"); | |
3177 | } | |
3178 | if (TYPE_STATIC (type)) | |
3179 | { | |
3180 | puts_filtered (" TYPE_FLAG_STATIC"); | |
3181 | } | |
762a036f FF |
3182 | if (TYPE_PROTOTYPED (type)) |
3183 | { | |
3184 | puts_filtered (" TYPE_FLAG_PROTOTYPED"); | |
3185 | } | |
3186 | if (TYPE_INCOMPLETE (type)) | |
3187 | { | |
3188 | puts_filtered (" TYPE_FLAG_INCOMPLETE"); | |
3189 | } | |
762a036f FF |
3190 | if (TYPE_VARARGS (type)) |
3191 | { | |
3192 | puts_filtered (" TYPE_FLAG_VARARGS"); | |
3193 | } | |
f5f8a009 EZ |
3194 | /* This is used for things like AltiVec registers on ppc. Gcc emits |
3195 | an attribute for the array type, which tells whether or not we | |
3196 | have a vector, instead of a regular array. */ | |
3197 | if (TYPE_VECTOR (type)) | |
3198 | { | |
3199 | puts_filtered (" TYPE_FLAG_VECTOR"); | |
3200 | } | |
876cecd0 TT |
3201 | if (TYPE_FIXED_INSTANCE (type)) |
3202 | { | |
3203 | puts_filtered (" TYPE_FIXED_INSTANCE"); | |
3204 | } | |
3205 | if (TYPE_STUB_SUPPORTED (type)) | |
3206 | { | |
3207 | puts_filtered (" TYPE_STUB_SUPPORTED"); | |
3208 | } | |
3209 | if (TYPE_NOTTEXT (type)) | |
3210 | { | |
3211 | puts_filtered (" TYPE_NOTTEXT"); | |
3212 | } | |
c906108c SS |
3213 | puts_filtered ("\n"); |
3214 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 3215 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
3216 | puts_filtered ("\n"); |
3217 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
3218 | { | |
14e75d8e JK |
3219 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) |
3220 | printfi_filtered (spaces + 2, | |
3221 | "[%d] enumval %s type ", | |
3222 | idx, plongest (TYPE_FIELD_ENUMVAL (type, idx))); | |
3223 | else | |
3224 | printfi_filtered (spaces + 2, | |
3225 | "[%d] bitpos %d bitsize %d type ", | |
3226 | idx, TYPE_FIELD_BITPOS (type, idx), | |
3227 | TYPE_FIELD_BITSIZE (type, idx)); | |
d4f3574e | 3228 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
3229 | printf_filtered (" name '%s' (", |
3230 | TYPE_FIELD_NAME (type, idx) != NULL | |
3231 | ? TYPE_FIELD_NAME (type, idx) | |
3232 | : "<NULL>"); | |
d4f3574e | 3233 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
3234 | printf_filtered (")\n"); |
3235 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
3236 | { | |
3237 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
3238 | } | |
3239 | } | |
43bbcdc2 PH |
3240 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
3241 | { | |
3242 | printfi_filtered (spaces, "low %s%s high %s%s\n", | |
3243 | plongest (TYPE_LOW_BOUND (type)), | |
3244 | TYPE_LOW_BOUND_UNDEFINED (type) ? " (undefined)" : "", | |
3245 | plongest (TYPE_HIGH_BOUND (type)), | |
3e43a32a MS |
3246 | TYPE_HIGH_BOUND_UNDEFINED (type) |
3247 | ? " (undefined)" : ""); | |
43bbcdc2 | 3248 | } |
c906108c | 3249 | printfi_filtered (spaces, "vptr_basetype "); |
d4f3574e | 3250 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); |
c906108c SS |
3251 | puts_filtered ("\n"); |
3252 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
3253 | { | |
3254 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
3255 | } | |
7ba81444 MS |
3256 | printfi_filtered (spaces, "vptr_fieldno %d\n", |
3257 | TYPE_VPTR_FIELDNO (type)); | |
c906108c | 3258 | |
b4ba55a1 JB |
3259 | switch (TYPE_SPECIFIC_FIELD (type)) |
3260 | { | |
3261 | case TYPE_SPECIFIC_CPLUS_STUFF: | |
3262 | printfi_filtered (spaces, "cplus_stuff "); | |
3263 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), | |
3264 | gdb_stdout); | |
3265 | puts_filtered ("\n"); | |
3266 | print_cplus_stuff (type, spaces); | |
3267 | break; | |
8da61cc4 | 3268 | |
b4ba55a1 JB |
3269 | case TYPE_SPECIFIC_GNAT_STUFF: |
3270 | printfi_filtered (spaces, "gnat_stuff "); | |
3271 | gdb_print_host_address (TYPE_GNAT_SPECIFIC (type), gdb_stdout); | |
3272 | puts_filtered ("\n"); | |
3273 | print_gnat_stuff (type, spaces); | |
3274 | break; | |
701c159d | 3275 | |
b4ba55a1 JB |
3276 | case TYPE_SPECIFIC_FLOATFORMAT: |
3277 | printfi_filtered (spaces, "floatformat "); | |
3278 | if (TYPE_FLOATFORMAT (type) == NULL) | |
3279 | puts_filtered ("(null)"); | |
3280 | else | |
3281 | { | |
3282 | puts_filtered ("{ "); | |
3283 | if (TYPE_FLOATFORMAT (type)[0] == NULL | |
3284 | || TYPE_FLOATFORMAT (type)[0]->name == NULL) | |
3285 | puts_filtered ("(null)"); | |
3286 | else | |
3287 | puts_filtered (TYPE_FLOATFORMAT (type)[0]->name); | |
3288 | ||
3289 | puts_filtered (", "); | |
3290 | if (TYPE_FLOATFORMAT (type)[1] == NULL | |
3291 | || TYPE_FLOATFORMAT (type)[1]->name == NULL) | |
3292 | puts_filtered ("(null)"); | |
3293 | else | |
3294 | puts_filtered (TYPE_FLOATFORMAT (type)[1]->name); | |
3295 | ||
3296 | puts_filtered (" }"); | |
3297 | } | |
3298 | puts_filtered ("\n"); | |
3299 | break; | |
c906108c | 3300 | |
b6cdc2c1 | 3301 | case TYPE_SPECIFIC_FUNC: |
b4ba55a1 JB |
3302 | printfi_filtered (spaces, "calling_convention %d\n", |
3303 | TYPE_CALLING_CONVENTION (type)); | |
b6cdc2c1 | 3304 | /* tail_call_list is not printed. */ |
b4ba55a1 | 3305 | break; |
c906108c | 3306 | } |
b4ba55a1 | 3307 | |
c906108c SS |
3308 | if (spaces == 0) |
3309 | obstack_free (&dont_print_type_obstack, NULL); | |
3310 | } | |
3311 | ||
ae5a43e0 DJ |
3312 | /* Trivial helpers for the libiberty hash table, for mapping one |
3313 | type to another. */ | |
3314 | ||
3315 | struct type_pair | |
3316 | { | |
3317 | struct type *old, *new; | |
3318 | }; | |
3319 | ||
3320 | static hashval_t | |
3321 | type_pair_hash (const void *item) | |
3322 | { | |
3323 | const struct type_pair *pair = item; | |
d8734c88 | 3324 | |
ae5a43e0 DJ |
3325 | return htab_hash_pointer (pair->old); |
3326 | } | |
3327 | ||
3328 | static int | |
3329 | type_pair_eq (const void *item_lhs, const void *item_rhs) | |
3330 | { | |
3331 | const struct type_pair *lhs = item_lhs, *rhs = item_rhs; | |
d8734c88 | 3332 | |
ae5a43e0 DJ |
3333 | return lhs->old == rhs->old; |
3334 | } | |
3335 | ||
3336 | /* Allocate the hash table used by copy_type_recursive to walk | |
3337 | types without duplicates. We use OBJFILE's obstack, because | |
3338 | OBJFILE is about to be deleted. */ | |
3339 | ||
3340 | htab_t | |
3341 | create_copied_types_hash (struct objfile *objfile) | |
3342 | { | |
3343 | return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, | |
3344 | NULL, &objfile->objfile_obstack, | |
3345 | hashtab_obstack_allocate, | |
3346 | dummy_obstack_deallocate); | |
3347 | } | |
3348 | ||
7ba81444 MS |
3349 | /* Recursively copy (deep copy) TYPE, if it is associated with |
3350 | OBJFILE. Return a new type allocated using malloc, a saved type if | |
3351 | we have already visited TYPE (using COPIED_TYPES), or TYPE if it is | |
3352 | not associated with OBJFILE. */ | |
ae5a43e0 DJ |
3353 | |
3354 | struct type * | |
7ba81444 MS |
3355 | copy_type_recursive (struct objfile *objfile, |
3356 | struct type *type, | |
ae5a43e0 DJ |
3357 | htab_t copied_types) |
3358 | { | |
3359 | struct type_pair *stored, pair; | |
3360 | void **slot; | |
3361 | struct type *new_type; | |
3362 | ||
e9bb382b | 3363 | if (! TYPE_OBJFILE_OWNED (type)) |
ae5a43e0 DJ |
3364 | return type; |
3365 | ||
7ba81444 MS |
3366 | /* This type shouldn't be pointing to any types in other objfiles; |
3367 | if it did, the type might disappear unexpectedly. */ | |
ae5a43e0 DJ |
3368 | gdb_assert (TYPE_OBJFILE (type) == objfile); |
3369 | ||
3370 | pair.old = type; | |
3371 | slot = htab_find_slot (copied_types, &pair, INSERT); | |
3372 | if (*slot != NULL) | |
3373 | return ((struct type_pair *) *slot)->new; | |
3374 | ||
e9bb382b | 3375 | new_type = alloc_type_arch (get_type_arch (type)); |
ae5a43e0 DJ |
3376 | |
3377 | /* We must add the new type to the hash table immediately, in case | |
3378 | we encounter this type again during a recursive call below. */ | |
3e43a32a MS |
3379 | stored |
3380 | = obstack_alloc (&objfile->objfile_obstack, sizeof (struct type_pair)); | |
ae5a43e0 DJ |
3381 | stored->old = type; |
3382 | stored->new = new_type; | |
3383 | *slot = stored; | |
3384 | ||
876cecd0 TT |
3385 | /* Copy the common fields of types. For the main type, we simply |
3386 | copy the entire thing and then update specific fields as needed. */ | |
3387 | *TYPE_MAIN_TYPE (new_type) = *TYPE_MAIN_TYPE (type); | |
e9bb382b UW |
3388 | TYPE_OBJFILE_OWNED (new_type) = 0; |
3389 | TYPE_OWNER (new_type).gdbarch = get_type_arch (type); | |
876cecd0 | 3390 | |
ae5a43e0 DJ |
3391 | if (TYPE_NAME (type)) |
3392 | TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type)); | |
3393 | if (TYPE_TAG_NAME (type)) | |
3394 | TYPE_TAG_NAME (new_type) = xstrdup (TYPE_TAG_NAME (type)); | |
ae5a43e0 DJ |
3395 | |
3396 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); | |
3397 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
3398 | ||
3399 | /* Copy the fields. */ | |
ae5a43e0 DJ |
3400 | if (TYPE_NFIELDS (type)) |
3401 | { | |
3402 | int i, nfields; | |
3403 | ||
3404 | nfields = TYPE_NFIELDS (type); | |
1deafd4e | 3405 | TYPE_FIELDS (new_type) = XCALLOC (nfields, struct field); |
ae5a43e0 DJ |
3406 | for (i = 0; i < nfields; i++) |
3407 | { | |
7ba81444 MS |
3408 | TYPE_FIELD_ARTIFICIAL (new_type, i) = |
3409 | TYPE_FIELD_ARTIFICIAL (type, i); | |
ae5a43e0 DJ |
3410 | TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
3411 | if (TYPE_FIELD_TYPE (type, i)) | |
3412 | TYPE_FIELD_TYPE (new_type, i) | |
3413 | = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i), | |
3414 | copied_types); | |
3415 | if (TYPE_FIELD_NAME (type, i)) | |
7ba81444 MS |
3416 | TYPE_FIELD_NAME (new_type, i) = |
3417 | xstrdup (TYPE_FIELD_NAME (type, i)); | |
d6a843b5 | 3418 | switch (TYPE_FIELD_LOC_KIND (type, i)) |
ae5a43e0 | 3419 | { |
d6a843b5 JK |
3420 | case FIELD_LOC_KIND_BITPOS: |
3421 | SET_FIELD_BITPOS (TYPE_FIELD (new_type, i), | |
3422 | TYPE_FIELD_BITPOS (type, i)); | |
3423 | break; | |
14e75d8e JK |
3424 | case FIELD_LOC_KIND_ENUMVAL: |
3425 | SET_FIELD_ENUMVAL (TYPE_FIELD (new_type, i), | |
3426 | TYPE_FIELD_ENUMVAL (type, i)); | |
3427 | break; | |
d6a843b5 JK |
3428 | case FIELD_LOC_KIND_PHYSADDR: |
3429 | SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i), | |
3430 | TYPE_FIELD_STATIC_PHYSADDR (type, i)); | |
3431 | break; | |
3432 | case FIELD_LOC_KIND_PHYSNAME: | |
3433 | SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i), | |
3434 | xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, | |
3435 | i))); | |
3436 | break; | |
3437 | default: | |
3438 | internal_error (__FILE__, __LINE__, | |
3439 | _("Unexpected type field location kind: %d"), | |
3440 | TYPE_FIELD_LOC_KIND (type, i)); | |
ae5a43e0 DJ |
3441 | } |
3442 | } | |
3443 | } | |
3444 | ||
0963b4bd | 3445 | /* For range types, copy the bounds information. */ |
43bbcdc2 PH |
3446 | if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
3447 | { | |
3448 | TYPE_RANGE_DATA (new_type) = xmalloc (sizeof (struct range_bounds)); | |
3449 | *TYPE_RANGE_DATA (new_type) = *TYPE_RANGE_DATA (type); | |
3450 | } | |
3451 | ||
ae5a43e0 DJ |
3452 | /* Copy pointers to other types. */ |
3453 | if (TYPE_TARGET_TYPE (type)) | |
7ba81444 MS |
3454 | TYPE_TARGET_TYPE (new_type) = |
3455 | copy_type_recursive (objfile, | |
3456 | TYPE_TARGET_TYPE (type), | |
3457 | copied_types); | |
ae5a43e0 | 3458 | if (TYPE_VPTR_BASETYPE (type)) |
7ba81444 MS |
3459 | TYPE_VPTR_BASETYPE (new_type) = |
3460 | copy_type_recursive (objfile, | |
3461 | TYPE_VPTR_BASETYPE (type), | |
3462 | copied_types); | |
ae5a43e0 DJ |
3463 | /* Maybe copy the type_specific bits. |
3464 | ||
3465 | NOTE drow/2005-12-09: We do not copy the C++-specific bits like | |
3466 | base classes and methods. There's no fundamental reason why we | |
3467 | can't, but at the moment it is not needed. */ | |
3468 | ||
3469 | if (TYPE_CODE (type) == TYPE_CODE_FLT) | |
d5d6fca5 | 3470 | TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); |
ae5a43e0 DJ |
3471 | else if (TYPE_CODE (type) == TYPE_CODE_STRUCT |
3472 | || TYPE_CODE (type) == TYPE_CODE_UNION | |
ae5a43e0 DJ |
3473 | || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) |
3474 | INIT_CPLUS_SPECIFIC (new_type); | |
3475 | ||
3476 | return new_type; | |
3477 | } | |
3478 | ||
4af88198 JB |
3479 | /* Make a copy of the given TYPE, except that the pointer & reference |
3480 | types are not preserved. | |
3481 | ||
3482 | This function assumes that the given type has an associated objfile. | |
3483 | This objfile is used to allocate the new type. */ | |
3484 | ||
3485 | struct type * | |
3486 | copy_type (const struct type *type) | |
3487 | { | |
3488 | struct type *new_type; | |
3489 | ||
e9bb382b | 3490 | gdb_assert (TYPE_OBJFILE_OWNED (type)); |
4af88198 | 3491 | |
e9bb382b | 3492 | new_type = alloc_type_copy (type); |
4af88198 JB |
3493 | TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); |
3494 | TYPE_LENGTH (new_type) = TYPE_LENGTH (type); | |
3495 | memcpy (TYPE_MAIN_TYPE (new_type), TYPE_MAIN_TYPE (type), | |
3496 | sizeof (struct main_type)); | |
3497 | ||
3498 | return new_type; | |
3499 | } | |
3500 | ||
e9bb382b UW |
3501 | |
3502 | /* Helper functions to initialize architecture-specific types. */ | |
3503 | ||
3504 | /* Allocate a type structure associated with GDBARCH and set its | |
3505 | CODE, LENGTH, and NAME fields. */ | |
3506 | struct type * | |
3507 | arch_type (struct gdbarch *gdbarch, | |
3508 | enum type_code code, int length, char *name) | |
3509 | { | |
3510 | struct type *type; | |
3511 | ||
3512 | type = alloc_type_arch (gdbarch); | |
3513 | TYPE_CODE (type) = code; | |
3514 | TYPE_LENGTH (type) = length; | |
3515 | ||
3516 | if (name) | |
3517 | TYPE_NAME (type) = xstrdup (name); | |
3518 | ||
3519 | return type; | |
3520 | } | |
3521 | ||
3522 | /* Allocate a TYPE_CODE_INT type structure associated with GDBARCH. | |
3523 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3524 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
3525 | struct type * | |
3526 | arch_integer_type (struct gdbarch *gdbarch, | |
3527 | int bit, int unsigned_p, char *name) | |
3528 | { | |
3529 | struct type *t; | |
3530 | ||
3531 | t = arch_type (gdbarch, TYPE_CODE_INT, bit / TARGET_CHAR_BIT, name); | |
3532 | if (unsigned_p) | |
3533 | TYPE_UNSIGNED (t) = 1; | |
3534 | if (name && strcmp (name, "char") == 0) | |
3535 | TYPE_NOSIGN (t) = 1; | |
3536 | ||
3537 | return t; | |
3538 | } | |
3539 | ||
3540 | /* Allocate a TYPE_CODE_CHAR type structure associated with GDBARCH. | |
3541 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3542 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
3543 | struct type * | |
3544 | arch_character_type (struct gdbarch *gdbarch, | |
3545 | int bit, int unsigned_p, char *name) | |
3546 | { | |
3547 | struct type *t; | |
3548 | ||
3549 | t = arch_type (gdbarch, TYPE_CODE_CHAR, bit / TARGET_CHAR_BIT, name); | |
3550 | if (unsigned_p) | |
3551 | TYPE_UNSIGNED (t) = 1; | |
3552 | ||
3553 | return t; | |
3554 | } | |
3555 | ||
3556 | /* Allocate a TYPE_CODE_BOOL type structure associated with GDBARCH. | |
3557 | BIT is the type size in bits. If UNSIGNED_P is non-zero, set | |
3558 | the type's TYPE_UNSIGNED flag. NAME is the type name. */ | |
3559 | struct type * | |
3560 | arch_boolean_type (struct gdbarch *gdbarch, | |
3561 | int bit, int unsigned_p, char *name) | |
3562 | { | |
3563 | struct type *t; | |
3564 | ||
3565 | t = arch_type (gdbarch, TYPE_CODE_BOOL, bit / TARGET_CHAR_BIT, name); | |
3566 | if (unsigned_p) | |
3567 | TYPE_UNSIGNED (t) = 1; | |
3568 | ||
3569 | return t; | |
3570 | } | |
3571 | ||
3572 | /* Allocate a TYPE_CODE_FLT type structure associated with GDBARCH. | |
3573 | BIT is the type size in bits; if BIT equals -1, the size is | |
3574 | determined by the floatformat. NAME is the type name. Set the | |
3575 | TYPE_FLOATFORMAT from FLOATFORMATS. */ | |
27067745 | 3576 | struct type * |
e9bb382b UW |
3577 | arch_float_type (struct gdbarch *gdbarch, |
3578 | int bit, char *name, const struct floatformat **floatformats) | |
8da61cc4 DJ |
3579 | { |
3580 | struct type *t; | |
3581 | ||
3582 | if (bit == -1) | |
3583 | { | |
3584 | gdb_assert (floatformats != NULL); | |
3585 | gdb_assert (floatformats[0] != NULL && floatformats[1] != NULL); | |
3586 | bit = floatformats[0]->totalsize; | |
3587 | } | |
3588 | gdb_assert (bit >= 0); | |
3589 | ||
e9bb382b | 3590 | t = arch_type (gdbarch, TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, name); |
8da61cc4 DJ |
3591 | TYPE_FLOATFORMAT (t) = floatformats; |
3592 | return t; | |
3593 | } | |
3594 | ||
e9bb382b UW |
3595 | /* Allocate a TYPE_CODE_COMPLEX type structure associated with GDBARCH. |
3596 | NAME is the type name. TARGET_TYPE is the component float type. */ | |
27067745 | 3597 | struct type * |
e9bb382b UW |
3598 | arch_complex_type (struct gdbarch *gdbarch, |
3599 | char *name, struct type *target_type) | |
27067745 UW |
3600 | { |
3601 | struct type *t; | |
d8734c88 | 3602 | |
e9bb382b UW |
3603 | t = arch_type (gdbarch, TYPE_CODE_COMPLEX, |
3604 | 2 * TYPE_LENGTH (target_type), name); | |
27067745 UW |
3605 | TYPE_TARGET_TYPE (t) = target_type; |
3606 | return t; | |
3607 | } | |
3608 | ||
e9bb382b | 3609 | /* Allocate a TYPE_CODE_FLAGS type structure associated with GDBARCH. |
eb90ce83 | 3610 | NAME is the type name. LENGTH is the size of the flag word in bytes. */ |
e9bb382b UW |
3611 | struct type * |
3612 | arch_flags_type (struct gdbarch *gdbarch, char *name, int length) | |
3613 | { | |
3614 | int nfields = length * TARGET_CHAR_BIT; | |
3615 | struct type *type; | |
3616 | ||
3617 | type = arch_type (gdbarch, TYPE_CODE_FLAGS, length, name); | |
3618 | TYPE_UNSIGNED (type) = 1; | |
3619 | TYPE_NFIELDS (type) = nfields; | |
3620 | TYPE_FIELDS (type) = TYPE_ZALLOC (type, nfields * sizeof (struct field)); | |
3621 | ||
3622 | return type; | |
3623 | } | |
3624 | ||
3625 | /* Add field to TYPE_CODE_FLAGS type TYPE to indicate the bit at | |
3626 | position BITPOS is called NAME. */ | |
3627 | void | |
3628 | append_flags_type_flag (struct type *type, int bitpos, char *name) | |
3629 | { | |
3630 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS); | |
3631 | gdb_assert (bitpos < TYPE_NFIELDS (type)); | |
3632 | gdb_assert (bitpos >= 0); | |
3633 | ||
3634 | if (name) | |
3635 | { | |
3636 | TYPE_FIELD_NAME (type, bitpos) = xstrdup (name); | |
945b3a32 | 3637 | SET_FIELD_BITPOS (TYPE_FIELD (type, bitpos), bitpos); |
e9bb382b UW |
3638 | } |
3639 | else | |
3640 | { | |
3641 | /* Don't show this field to the user. */ | |
945b3a32 | 3642 | SET_FIELD_BITPOS (TYPE_FIELD (type, bitpos), -1); |
e9bb382b UW |
3643 | } |
3644 | } | |
3645 | ||
3646 | /* Allocate a TYPE_CODE_STRUCT or TYPE_CODE_UNION type structure (as | |
3647 | specified by CODE) associated with GDBARCH. NAME is the type name. */ | |
3648 | struct type * | |
3649 | arch_composite_type (struct gdbarch *gdbarch, char *name, enum type_code code) | |
3650 | { | |
3651 | struct type *t; | |
d8734c88 | 3652 | |
e9bb382b UW |
3653 | gdb_assert (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION); |
3654 | t = arch_type (gdbarch, code, 0, NULL); | |
3655 | TYPE_TAG_NAME (t) = name; | |
3656 | INIT_CPLUS_SPECIFIC (t); | |
3657 | return t; | |
3658 | } | |
3659 | ||
3660 | /* Add new field with name NAME and type FIELD to composite type T. | |
f5dff777 DJ |
3661 | Do not set the field's position or adjust the type's length; |
3662 | the caller should do so. Return the new field. */ | |
3663 | struct field * | |
3664 | append_composite_type_field_raw (struct type *t, char *name, | |
3665 | struct type *field) | |
e9bb382b UW |
3666 | { |
3667 | struct field *f; | |
d8734c88 | 3668 | |
e9bb382b UW |
3669 | TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; |
3670 | TYPE_FIELDS (t) = xrealloc (TYPE_FIELDS (t), | |
3671 | sizeof (struct field) * TYPE_NFIELDS (t)); | |
3672 | f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); | |
3673 | memset (f, 0, sizeof f[0]); | |
3674 | FIELD_TYPE (f[0]) = field; | |
3675 | FIELD_NAME (f[0]) = name; | |
f5dff777 DJ |
3676 | return f; |
3677 | } | |
3678 | ||
3679 | /* Add new field with name NAME and type FIELD to composite type T. | |
3680 | ALIGNMENT (if non-zero) specifies the minimum field alignment. */ | |
3681 | void | |
3682 | append_composite_type_field_aligned (struct type *t, char *name, | |
3683 | struct type *field, int alignment) | |
3684 | { | |
3685 | struct field *f = append_composite_type_field_raw (t, name, field); | |
d8734c88 | 3686 | |
e9bb382b UW |
3687 | if (TYPE_CODE (t) == TYPE_CODE_UNION) |
3688 | { | |
3689 | if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) | |
3690 | TYPE_LENGTH (t) = TYPE_LENGTH (field); | |
3691 | } | |
3692 | else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) | |
3693 | { | |
3694 | TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); | |
3695 | if (TYPE_NFIELDS (t) > 1) | |
3696 | { | |
f41f5e61 PA |
3697 | SET_FIELD_BITPOS (f[0], |
3698 | (FIELD_BITPOS (f[-1]) | |
3699 | + (TYPE_LENGTH (FIELD_TYPE (f[-1])) | |
3700 | * TARGET_CHAR_BIT))); | |
e9bb382b UW |
3701 | |
3702 | if (alignment) | |
3703 | { | |
86c3c1fc AB |
3704 | int left; |
3705 | ||
3706 | alignment *= TARGET_CHAR_BIT; | |
3707 | left = FIELD_BITPOS (f[0]) % alignment; | |
d8734c88 | 3708 | |
e9bb382b UW |
3709 | if (left) |
3710 | { | |
f41f5e61 | 3711 | SET_FIELD_BITPOS (f[0], FIELD_BITPOS (f[0]) + (alignment - left)); |
86c3c1fc | 3712 | TYPE_LENGTH (t) += (alignment - left) / TARGET_CHAR_BIT; |
e9bb382b UW |
3713 | } |
3714 | } | |
3715 | } | |
3716 | } | |
3717 | } | |
3718 | ||
3719 | /* Add new field with name NAME and type FIELD to composite type T. */ | |
3720 | void | |
3721 | append_composite_type_field (struct type *t, char *name, | |
3722 | struct type *field) | |
3723 | { | |
3724 | append_composite_type_field_aligned (t, name, field, 0); | |
3725 | } | |
3726 | ||
3727 | ||
000177f0 AC |
3728 | static struct gdbarch_data *gdbtypes_data; |
3729 | ||
3730 | const struct builtin_type * | |
3731 | builtin_type (struct gdbarch *gdbarch) | |
3732 | { | |
3733 | return gdbarch_data (gdbarch, gdbtypes_data); | |
3734 | } | |
3735 | ||
3736 | static void * | |
3737 | gdbtypes_post_init (struct gdbarch *gdbarch) | |
3738 | { | |
3739 | struct builtin_type *builtin_type | |
3740 | = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); | |
3741 | ||
46bf5051 | 3742 | /* Basic types. */ |
e9bb382b UW |
3743 | builtin_type->builtin_void |
3744 | = arch_type (gdbarch, TYPE_CODE_VOID, 1, "void"); | |
3745 | builtin_type->builtin_char | |
3746 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
3747 | !gdbarch_char_signed (gdbarch), "char"); | |
3748 | builtin_type->builtin_signed_char | |
3749 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
3750 | 0, "signed char"); | |
3751 | builtin_type->builtin_unsigned_char | |
3752 | = arch_integer_type (gdbarch, TARGET_CHAR_BIT, | |
3753 | 1, "unsigned char"); | |
3754 | builtin_type->builtin_short | |
3755 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
3756 | 0, "short"); | |
3757 | builtin_type->builtin_unsigned_short | |
3758 | = arch_integer_type (gdbarch, gdbarch_short_bit (gdbarch), | |
3759 | 1, "unsigned short"); | |
3760 | builtin_type->builtin_int | |
3761 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
3762 | 0, "int"); | |
3763 | builtin_type->builtin_unsigned_int | |
3764 | = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
3765 | 1, "unsigned int"); | |
3766 | builtin_type->builtin_long | |
3767 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
3768 | 0, "long"); | |
3769 | builtin_type->builtin_unsigned_long | |
3770 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
3771 | 1, "unsigned long"); | |
3772 | builtin_type->builtin_long_long | |
3773 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
3774 | 0, "long long"); | |
3775 | builtin_type->builtin_unsigned_long_long | |
3776 | = arch_integer_type (gdbarch, gdbarch_long_long_bit (gdbarch), | |
3777 | 1, "unsigned long long"); | |
70bd8e24 | 3778 | builtin_type->builtin_float |
e9bb382b | 3779 | = arch_float_type (gdbarch, gdbarch_float_bit (gdbarch), |
27067745 | 3780 | "float", gdbarch_float_format (gdbarch)); |
70bd8e24 | 3781 | builtin_type->builtin_double |
e9bb382b | 3782 | = arch_float_type (gdbarch, gdbarch_double_bit (gdbarch), |
27067745 | 3783 | "double", gdbarch_double_format (gdbarch)); |
70bd8e24 | 3784 | builtin_type->builtin_long_double |
e9bb382b | 3785 | = arch_float_type (gdbarch, gdbarch_long_double_bit (gdbarch), |
27067745 | 3786 | "long double", gdbarch_long_double_format (gdbarch)); |
70bd8e24 | 3787 | builtin_type->builtin_complex |
e9bb382b UW |
3788 | = arch_complex_type (gdbarch, "complex", |
3789 | builtin_type->builtin_float); | |
70bd8e24 | 3790 | builtin_type->builtin_double_complex |
e9bb382b UW |
3791 | = arch_complex_type (gdbarch, "double complex", |
3792 | builtin_type->builtin_double); | |
3793 | builtin_type->builtin_string | |
3794 | = arch_type (gdbarch, TYPE_CODE_STRING, 1, "string"); | |
3795 | builtin_type->builtin_bool | |
3796 | = arch_type (gdbarch, TYPE_CODE_BOOL, 1, "bool"); | |
000177f0 | 3797 | |
7678ef8f TJB |
3798 | /* The following three are about decimal floating point types, which |
3799 | are 32-bits, 64-bits and 128-bits respectively. */ | |
3800 | builtin_type->builtin_decfloat | |
e9bb382b | 3801 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 32 / 8, "_Decimal32"); |
7678ef8f | 3802 | builtin_type->builtin_decdouble |
e9bb382b | 3803 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 64 / 8, "_Decimal64"); |
7678ef8f | 3804 | builtin_type->builtin_declong |
e9bb382b | 3805 | = arch_type (gdbarch, TYPE_CODE_DECFLOAT, 128 / 8, "_Decimal128"); |
7678ef8f | 3806 | |
69feb676 | 3807 | /* "True" character types. */ |
e9bb382b UW |
3808 | builtin_type->builtin_true_char |
3809 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 0, "true character"); | |
3810 | builtin_type->builtin_true_unsigned_char | |
3811 | = arch_character_type (gdbarch, TARGET_CHAR_BIT, 1, "true character"); | |
69feb676 | 3812 | |
df4df182 | 3813 | /* Fixed-size integer types. */ |
e9bb382b UW |
3814 | builtin_type->builtin_int0 |
3815 | = arch_integer_type (gdbarch, 0, 0, "int0_t"); | |
3816 | builtin_type->builtin_int8 | |
3817 | = arch_integer_type (gdbarch, 8, 0, "int8_t"); | |
3818 | builtin_type->builtin_uint8 | |
3819 | = arch_integer_type (gdbarch, 8, 1, "uint8_t"); | |
3820 | builtin_type->builtin_int16 | |
3821 | = arch_integer_type (gdbarch, 16, 0, "int16_t"); | |
3822 | builtin_type->builtin_uint16 | |
3823 | = arch_integer_type (gdbarch, 16, 1, "uint16_t"); | |
3824 | builtin_type->builtin_int32 | |
3825 | = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
3826 | builtin_type->builtin_uint32 | |
3827 | = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
3828 | builtin_type->builtin_int64 | |
3829 | = arch_integer_type (gdbarch, 64, 0, "int64_t"); | |
3830 | builtin_type->builtin_uint64 | |
3831 | = arch_integer_type (gdbarch, 64, 1, "uint64_t"); | |
3832 | builtin_type->builtin_int128 | |
3833 | = arch_integer_type (gdbarch, 128, 0, "int128_t"); | |
3834 | builtin_type->builtin_uint128 | |
3835 | = arch_integer_type (gdbarch, 128, 1, "uint128_t"); | |
2844d6b5 KW |
3836 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_int8) |= |
3837 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
3838 | TYPE_INSTANCE_FLAGS (builtin_type->builtin_uint8) |= | |
3839 | TYPE_INSTANCE_FLAG_NOTTEXT; | |
df4df182 | 3840 | |
9a22f0d0 PM |
3841 | /* Wide character types. */ |
3842 | builtin_type->builtin_char16 | |
3843 | = arch_integer_type (gdbarch, 16, 0, "char16_t"); | |
3844 | builtin_type->builtin_char32 | |
3845 | = arch_integer_type (gdbarch, 32, 0, "char32_t"); | |
3846 | ||
3847 | ||
46bf5051 | 3848 | /* Default data/code pointer types. */ |
e9bb382b UW |
3849 | builtin_type->builtin_data_ptr |
3850 | = lookup_pointer_type (builtin_type->builtin_void); | |
3851 | builtin_type->builtin_func_ptr | |
3852 | = lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); | |
0875794a JK |
3853 | builtin_type->builtin_func_func |
3854 | = lookup_function_type (builtin_type->builtin_func_ptr); | |
46bf5051 | 3855 | |
78267919 | 3856 | /* This type represents a GDB internal function. */ |
e9bb382b UW |
3857 | builtin_type->internal_fn |
3858 | = arch_type (gdbarch, TYPE_CODE_INTERNAL_FUNCTION, 0, | |
3859 | "<internal function>"); | |
78267919 | 3860 | |
46bf5051 UW |
3861 | return builtin_type; |
3862 | } | |
3863 | ||
3864 | ||
3865 | /* This set of objfile-based types is intended to be used by symbol | |
3866 | readers as basic types. */ | |
3867 | ||
3868 | static const struct objfile_data *objfile_type_data; | |
3869 | ||
3870 | const struct objfile_type * | |
3871 | objfile_type (struct objfile *objfile) | |
3872 | { | |
3873 | struct gdbarch *gdbarch; | |
3874 | struct objfile_type *objfile_type | |
3875 | = objfile_data (objfile, objfile_type_data); | |
3876 | ||
3877 | if (objfile_type) | |
3878 | return objfile_type; | |
3879 | ||
3880 | objfile_type = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
3881 | 1, struct objfile_type); | |
3882 | ||
3883 | /* Use the objfile architecture to determine basic type properties. */ | |
3884 | gdbarch = get_objfile_arch (objfile); | |
3885 | ||
3886 | /* Basic types. */ | |
3887 | objfile_type->builtin_void | |
3888 | = init_type (TYPE_CODE_VOID, 1, | |
3889 | 0, | |
3890 | "void", objfile); | |
3891 | ||
3892 | objfile_type->builtin_char | |
3893 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3894 | (TYPE_FLAG_NOSIGN | |
3895 | | (gdbarch_char_signed (gdbarch) ? 0 : TYPE_FLAG_UNSIGNED)), | |
3896 | "char", objfile); | |
3897 | objfile_type->builtin_signed_char | |
3898 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3899 | 0, | |
3900 | "signed char", objfile); | |
3901 | objfile_type->builtin_unsigned_char | |
3902 | = init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3903 | TYPE_FLAG_UNSIGNED, | |
3904 | "unsigned char", objfile); | |
3905 | objfile_type->builtin_short | |
3906 | = init_type (TYPE_CODE_INT, | |
3907 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
3908 | 0, "short", objfile); | |
3909 | objfile_type->builtin_unsigned_short | |
3910 | = init_type (TYPE_CODE_INT, | |
3911 | gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, | |
3912 | TYPE_FLAG_UNSIGNED, "unsigned short", objfile); | |
3913 | objfile_type->builtin_int | |
3914 | = init_type (TYPE_CODE_INT, | |
3915 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
3916 | 0, "int", objfile); | |
3917 | objfile_type->builtin_unsigned_int | |
3918 | = init_type (TYPE_CODE_INT, | |
3919 | gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, | |
3920 | TYPE_FLAG_UNSIGNED, "unsigned int", objfile); | |
3921 | objfile_type->builtin_long | |
3922 | = init_type (TYPE_CODE_INT, | |
3923 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
3924 | 0, "long", objfile); | |
3925 | objfile_type->builtin_unsigned_long | |
3926 | = init_type (TYPE_CODE_INT, | |
3927 | gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
3928 | TYPE_FLAG_UNSIGNED, "unsigned long", objfile); | |
3929 | objfile_type->builtin_long_long | |
3930 | = init_type (TYPE_CODE_INT, | |
3931 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
3932 | 0, "long long", objfile); | |
3933 | objfile_type->builtin_unsigned_long_long | |
3934 | = init_type (TYPE_CODE_INT, | |
3935 | gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, | |
3936 | TYPE_FLAG_UNSIGNED, "unsigned long long", objfile); | |
3937 | ||
3938 | objfile_type->builtin_float | |
3939 | = init_type (TYPE_CODE_FLT, | |
3940 | gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT, | |
3941 | 0, "float", objfile); | |
3942 | TYPE_FLOATFORMAT (objfile_type->builtin_float) | |
3943 | = gdbarch_float_format (gdbarch); | |
3944 | objfile_type->builtin_double | |
3945 | = init_type (TYPE_CODE_FLT, | |
3946 | gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
3947 | 0, "double", objfile); | |
3948 | TYPE_FLOATFORMAT (objfile_type->builtin_double) | |
3949 | = gdbarch_double_format (gdbarch); | |
3950 | objfile_type->builtin_long_double | |
3951 | = init_type (TYPE_CODE_FLT, | |
3952 | gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT, | |
3953 | 0, "long double", objfile); | |
3954 | TYPE_FLOATFORMAT (objfile_type->builtin_long_double) | |
3955 | = gdbarch_long_double_format (gdbarch); | |
3956 | ||
3957 | /* This type represents a type that was unrecognized in symbol read-in. */ | |
3958 | objfile_type->builtin_error | |
3959 | = init_type (TYPE_CODE_ERROR, 0, 0, "<unknown type>", objfile); | |
3960 | ||
3961 | /* The following set of types is used for symbols with no | |
3962 | debug information. */ | |
3963 | objfile_type->nodebug_text_symbol | |
3964 | = init_type (TYPE_CODE_FUNC, 1, 0, | |
3965 | "<text variable, no debug info>", objfile); | |
3966 | TYPE_TARGET_TYPE (objfile_type->nodebug_text_symbol) | |
3967 | = objfile_type->builtin_int; | |
0875794a JK |
3968 | objfile_type->nodebug_text_gnu_ifunc_symbol |
3969 | = init_type (TYPE_CODE_FUNC, 1, TYPE_FLAG_GNU_IFUNC, | |
3970 | "<text gnu-indirect-function variable, no debug info>", | |
3971 | objfile); | |
3972 | TYPE_TARGET_TYPE (objfile_type->nodebug_text_gnu_ifunc_symbol) | |
3973 | = objfile_type->nodebug_text_symbol; | |
3974 | objfile_type->nodebug_got_plt_symbol | |
3975 | = init_type (TYPE_CODE_PTR, gdbarch_addr_bit (gdbarch) / 8, 0, | |
3976 | "<text from jump slot in .got.plt, no debug info>", | |
3977 | objfile); | |
3978 | TYPE_TARGET_TYPE (objfile_type->nodebug_got_plt_symbol) | |
3979 | = objfile_type->nodebug_text_symbol; | |
46bf5051 UW |
3980 | objfile_type->nodebug_data_symbol |
3981 | = init_type (TYPE_CODE_INT, | |
3982 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
3983 | "<data variable, no debug info>", objfile); | |
3984 | objfile_type->nodebug_unknown_symbol | |
3985 | = init_type (TYPE_CODE_INT, 1, 0, | |
3986 | "<variable (not text or data), no debug info>", objfile); | |
3987 | objfile_type->nodebug_tls_symbol | |
3988 | = init_type (TYPE_CODE_INT, | |
3989 | gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, | |
3990 | "<thread local variable, no debug info>", objfile); | |
000177f0 AC |
3991 | |
3992 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
3993 | the same --- for example, on the D10V, pointers are 16 bits long, | |
3994 | but addresses are 32 bits long. See doc/gdbint.texinfo, | |
3995 | ``Pointers Are Not Always Addresses''. | |
3996 | ||
3997 | The upshot is: | |
3998 | - gdb's `struct type' always describes the target's | |
3999 | representation. | |
4000 | - gdb's `struct value' objects should always hold values in | |
4001 | target form. | |
4002 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
4003 | address space that the assembler and linker work with. Thus, | |
4004 | since target_read_memory takes a CORE_ADDR as an argument, it | |
4005 | can access any memory on the target, even if the processor has | |
4006 | separate code and data address spaces. | |
4007 | ||
4008 | So, for example: | |
4009 | - If v is a value holding a D10V code pointer, its contents are | |
4010 | in target form: a big-endian address left-shifted two bits. | |
4011 | - If p is a D10V pointer type, TYPE_LENGTH (p) == 2, just as | |
4012 | sizeof (void *) == 2 on the target. | |
4013 | ||
46bf5051 UW |
4014 | In this context, objfile_type->builtin_core_addr is a bit odd: |
4015 | it's a target type for a value the target will never see. It's | |
4016 | only used to hold the values of (typeless) linker symbols, which | |
4017 | are indeed in the unified virtual address space. */ | |
000177f0 | 4018 | |
46bf5051 UW |
4019 | objfile_type->builtin_core_addr |
4020 | = init_type (TYPE_CODE_INT, | |
4021 | gdbarch_addr_bit (gdbarch) / 8, | |
4022 | TYPE_FLAG_UNSIGNED, "__CORE_ADDR", objfile); | |
64c50499 | 4023 | |
46bf5051 UW |
4024 | set_objfile_data (objfile, objfile_type_data, objfile_type); |
4025 | return objfile_type; | |
000177f0 AC |
4026 | } |
4027 | ||
46bf5051 | 4028 | |
a14ed312 | 4029 | extern void _initialize_gdbtypes (void); |
c906108c | 4030 | void |
fba45db2 | 4031 | _initialize_gdbtypes (void) |
c906108c | 4032 | { |
5674de60 | 4033 | gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
46bf5051 | 4034 | objfile_type_data = register_objfile_data (); |
5674de60 | 4035 | |
3e43a32a MS |
4036 | add_setshow_zinteger_cmd ("overload", no_class, &overload_debug, |
4037 | _("Set debugging of C++ overloading."), | |
4038 | _("Show debugging of C++ overloading."), | |
4039 | _("When enabled, ranking of the " | |
4040 | "functions is displayed."), | |
85c07804 | 4041 | NULL, |
920d2a44 | 4042 | show_overload_debug, |
85c07804 | 4043 | &setdebuglist, &showdebuglist); |
5674de60 | 4044 | |
7ba81444 | 4045 | /* Add user knob for controlling resolution of opaque types. */ |
5674de60 | 4046 | add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
3e43a32a MS |
4047 | &opaque_type_resolution, |
4048 | _("Set resolution of opaque struct/class/union" | |
4049 | " types (if set before loading symbols)."), | |
4050 | _("Show resolution of opaque struct/class/union" | |
4051 | " types (if set before loading symbols)."), | |
4052 | NULL, NULL, | |
5674de60 UW |
4053 | show_opaque_type_resolution, |
4054 | &setlist, &showlist); | |
c906108c | 4055 | } |