Commit | Line | Data |
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c906108c | 1 | /* Support routines for manipulating internal types for GDB. |
b6ba6518 KB |
2 | Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000 |
3 | Free Software Foundation, Inc. | |
c906108c SS |
4 | Contributed by Cygnus Support, using pieces from other GDB modules. |
5 | ||
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b JM |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
22 | |
23 | #include "defs.h" | |
24 | #include "gdb_string.h" | |
25 | #include "bfd.h" | |
26 | #include "symtab.h" | |
27 | #include "symfile.h" | |
28 | #include "objfiles.h" | |
29 | #include "gdbtypes.h" | |
30 | #include "expression.h" | |
31 | #include "language.h" | |
32 | #include "target.h" | |
33 | #include "value.h" | |
34 | #include "demangle.h" | |
35 | #include "complaints.h" | |
36 | #include "gdbcmd.h" | |
c91ecb25 | 37 | #include "wrapper.h" |
015a42b4 | 38 | #include "cp-abi.h" |
a02fd225 | 39 | #include "gdb_assert.h" |
c906108c SS |
40 | |
41 | /* These variables point to the objects | |
42 | representing the predefined C data types. */ | |
43 | ||
44 | struct type *builtin_type_void; | |
45 | struct type *builtin_type_char; | |
9e0b60a8 | 46 | struct type *builtin_type_true_char; |
c906108c SS |
47 | struct type *builtin_type_short; |
48 | struct type *builtin_type_int; | |
49 | struct type *builtin_type_long; | |
50 | struct type *builtin_type_long_long; | |
51 | struct type *builtin_type_signed_char; | |
52 | struct type *builtin_type_unsigned_char; | |
53 | struct type *builtin_type_unsigned_short; | |
54 | struct type *builtin_type_unsigned_int; | |
55 | struct type *builtin_type_unsigned_long; | |
56 | struct type *builtin_type_unsigned_long_long; | |
57 | struct type *builtin_type_float; | |
58 | struct type *builtin_type_double; | |
59 | struct type *builtin_type_long_double; | |
60 | struct type *builtin_type_complex; | |
61 | struct type *builtin_type_double_complex; | |
62 | struct type *builtin_type_string; | |
63 | struct type *builtin_type_int8; | |
64 | struct type *builtin_type_uint8; | |
65 | struct type *builtin_type_int16; | |
66 | struct type *builtin_type_uint16; | |
67 | struct type *builtin_type_int32; | |
68 | struct type *builtin_type_uint32; | |
69 | struct type *builtin_type_int64; | |
70 | struct type *builtin_type_uint64; | |
8b982acf EZ |
71 | struct type *builtin_type_int128; |
72 | struct type *builtin_type_uint128; | |
c906108c | 73 | struct type *builtin_type_bool; |
917317f4 | 74 | struct type *builtin_type_v4sf; |
c2d11a7d JM |
75 | struct type *builtin_type_v4si; |
76 | struct type *builtin_type_v8qi; | |
77 | struct type *builtin_type_v4hi; | |
78 | struct type *builtin_type_v2si; | |
598f52df AC |
79 | struct type *builtin_type_ieee_single_big; |
80 | struct type *builtin_type_ieee_single_little; | |
81 | struct type *builtin_type_ieee_double_big; | |
82 | struct type *builtin_type_ieee_double_little; | |
83 | struct type *builtin_type_ieee_double_littlebyte_bigword; | |
84 | struct type *builtin_type_i387_ext; | |
85 | struct type *builtin_type_m68881_ext; | |
86 | struct type *builtin_type_i960_ext; | |
87 | struct type *builtin_type_m88110_ext; | |
88 | struct type *builtin_type_m88110_harris_ext; | |
89 | struct type *builtin_type_arm_ext_big; | |
90 | struct type *builtin_type_arm_ext_littlebyte_bigword; | |
91 | struct type *builtin_type_ia64_spill_big; | |
92 | struct type *builtin_type_ia64_spill_little; | |
93 | struct type *builtin_type_ia64_quad_big; | |
94 | struct type *builtin_type_ia64_quad_little; | |
090a2205 | 95 | struct type *builtin_type_void_data_ptr; |
ee3a7b7f | 96 | struct type *builtin_type_void_func_ptr; |
c4093a6a JM |
97 | struct type *builtin_type_CORE_ADDR; |
98 | struct type *builtin_type_bfd_vma; | |
c906108c SS |
99 | |
100 | int opaque_type_resolution = 1; | |
5d161b24 | 101 | int overload_debug = 0; |
c906108c | 102 | |
c5aa993b JM |
103 | struct extra |
104 | { | |
105 | char str[128]; | |
106 | int len; | |
8c990f3c | 107 | }; /* maximum extension is 128! FIXME */ |
c906108c | 108 | |
a14ed312 KB |
109 | static void add_name (struct extra *, char *); |
110 | static void add_mangled_type (struct extra *, struct type *); | |
c906108c | 111 | #if 0 |
a14ed312 | 112 | static void cfront_mangle_name (struct type *, int, int); |
c906108c | 113 | #endif |
a14ed312 KB |
114 | static void print_bit_vector (B_TYPE *, int); |
115 | static void print_arg_types (struct type **, int); | |
116 | static void dump_fn_fieldlists (struct type *, int); | |
117 | static void print_cplus_stuff (struct type *, int); | |
118 | static void virtual_base_list_aux (struct type *dclass); | |
7a292a7a | 119 | |
c906108c SS |
120 | |
121 | /* Alloc a new type structure and fill it with some defaults. If | |
122 | OBJFILE is non-NULL, then allocate the space for the type structure | |
123 | in that objfile's type_obstack. */ | |
124 | ||
125 | struct type * | |
fba45db2 | 126 | alloc_type (struct objfile *objfile) |
c906108c SS |
127 | { |
128 | register struct type *type; | |
129 | ||
130 | /* Alloc the structure and start off with all fields zeroed. */ | |
131 | ||
132 | if (objfile == NULL) | |
133 | { | |
c5aa993b | 134 | type = (struct type *) xmalloc (sizeof (struct type)); |
c906108c SS |
135 | } |
136 | else | |
137 | { | |
c5aa993b JM |
138 | type = (struct type *) obstack_alloc (&objfile->type_obstack, |
139 | sizeof (struct type)); | |
c906108c SS |
140 | OBJSTAT (objfile, n_types++); |
141 | } | |
142 | memset ((char *) type, 0, sizeof (struct type)); | |
143 | ||
144 | /* Initialize the fields that might not be zero. */ | |
145 | ||
146 | TYPE_CODE (type) = TYPE_CODE_UNDEF; | |
147 | TYPE_OBJFILE (type) = objfile; | |
148 | TYPE_VPTR_FIELDNO (type) = -1; | |
c5aa993b | 149 | TYPE_CV_TYPE (type) = type; /* chain back to itself */ |
47663de5 | 150 | TYPE_AS_TYPE (type) = type; /* ditto */ |
c906108c SS |
151 | |
152 | return (type); | |
153 | } | |
154 | ||
155 | /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points | |
156 | to a pointer to memory where the pointer type should be stored. | |
157 | If *TYPEPTR is zero, update it to point to the pointer type we return. | |
158 | We allocate new memory if needed. */ | |
159 | ||
160 | struct type * | |
fba45db2 | 161 | make_pointer_type (struct type *type, struct type **typeptr) |
c906108c | 162 | { |
c5aa993b | 163 | register struct type *ntype; /* New type */ |
c906108c SS |
164 | struct objfile *objfile; |
165 | ||
166 | ntype = TYPE_POINTER_TYPE (type); | |
167 | ||
c5aa993b | 168 | if (ntype) |
c906108c | 169 | { |
c5aa993b JM |
170 | if (typeptr == 0) |
171 | return ntype; /* Don't care about alloc, and have new type. */ | |
c906108c | 172 | else if (*typeptr == 0) |
c5aa993b | 173 | { |
c906108c SS |
174 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ |
175 | return ntype; | |
c5aa993b | 176 | } |
c906108c SS |
177 | } |
178 | ||
179 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
180 | { | |
181 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
182 | if (typeptr) | |
183 | *typeptr = ntype; | |
184 | } | |
c5aa993b JM |
185 | else |
186 | /* We have storage, but need to reset it. */ | |
c906108c SS |
187 | { |
188 | ntype = *typeptr; | |
189 | objfile = TYPE_OBJFILE (ntype); | |
190 | memset ((char *) ntype, 0, sizeof (struct type)); | |
191 | TYPE_OBJFILE (ntype) = objfile; | |
192 | } | |
193 | ||
194 | TYPE_TARGET_TYPE (ntype) = type; | |
195 | TYPE_POINTER_TYPE (type) = ntype; | |
196 | ||
197 | /* FIXME! Assume the machine has only one representation for pointers! */ | |
198 | ||
199 | TYPE_LENGTH (ntype) = TARGET_PTR_BIT / TARGET_CHAR_BIT; | |
200 | TYPE_CODE (ntype) = TYPE_CODE_PTR; | |
201 | ||
67b2adb2 AC |
202 | /* Mark pointers as unsigned. The target converts between pointers |
203 | and addresses (CORE_ADDRs) using POINTER_TO_ADDRESS() and | |
204 | ADDRESS_TO_POINTER(). */ | |
c906108c | 205 | TYPE_FLAGS (ntype) |= TYPE_FLAG_UNSIGNED; |
c5aa993b | 206 | |
c906108c SS |
207 | if (!TYPE_POINTER_TYPE (type)) /* Remember it, if don't have one. */ |
208 | TYPE_POINTER_TYPE (type) = ntype; | |
209 | ||
210 | return ntype; | |
211 | } | |
212 | ||
213 | /* Given a type TYPE, return a type of pointers to that type. | |
214 | May need to construct such a type if this is the first use. */ | |
215 | ||
216 | struct type * | |
fba45db2 | 217 | lookup_pointer_type (struct type *type) |
c906108c | 218 | { |
c5aa993b | 219 | return make_pointer_type (type, (struct type **) 0); |
c906108c SS |
220 | } |
221 | ||
222 | /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, points | |
223 | to a pointer to memory where the reference type should be stored. | |
224 | If *TYPEPTR is zero, update it to point to the reference type we return. | |
225 | We allocate new memory if needed. */ | |
226 | ||
227 | struct type * | |
fba45db2 | 228 | make_reference_type (struct type *type, struct type **typeptr) |
c906108c | 229 | { |
c5aa993b | 230 | register struct type *ntype; /* New type */ |
c906108c SS |
231 | struct objfile *objfile; |
232 | ||
233 | ntype = TYPE_REFERENCE_TYPE (type); | |
234 | ||
c5aa993b | 235 | if (ntype) |
c906108c | 236 | { |
c5aa993b JM |
237 | if (typeptr == 0) |
238 | return ntype; /* Don't care about alloc, and have new type. */ | |
c906108c | 239 | else if (*typeptr == 0) |
c5aa993b | 240 | { |
c906108c SS |
241 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ |
242 | return ntype; | |
c5aa993b | 243 | } |
c906108c SS |
244 | } |
245 | ||
246 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
247 | { | |
248 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
249 | if (typeptr) | |
250 | *typeptr = ntype; | |
251 | } | |
c5aa993b JM |
252 | else |
253 | /* We have storage, but need to reset it. */ | |
c906108c SS |
254 | { |
255 | ntype = *typeptr; | |
256 | objfile = TYPE_OBJFILE (ntype); | |
257 | memset ((char *) ntype, 0, sizeof (struct type)); | |
258 | TYPE_OBJFILE (ntype) = objfile; | |
259 | } | |
260 | ||
261 | TYPE_TARGET_TYPE (ntype) = type; | |
262 | TYPE_REFERENCE_TYPE (type) = ntype; | |
263 | ||
264 | /* FIXME! Assume the machine has only one representation for references, | |
265 | and that it matches the (only) representation for pointers! */ | |
266 | ||
267 | TYPE_LENGTH (ntype) = TARGET_PTR_BIT / TARGET_CHAR_BIT; | |
268 | TYPE_CODE (ntype) = TYPE_CODE_REF; | |
c5aa993b | 269 | |
c906108c SS |
270 | if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */ |
271 | TYPE_REFERENCE_TYPE (type) = ntype; | |
272 | ||
273 | return ntype; | |
274 | } | |
275 | ||
276 | /* Same as above, but caller doesn't care about memory allocation details. */ | |
277 | ||
278 | struct type * | |
fba45db2 | 279 | lookup_reference_type (struct type *type) |
c906108c | 280 | { |
c5aa993b | 281 | return make_reference_type (type, (struct type **) 0); |
c906108c SS |
282 | } |
283 | ||
284 | /* Lookup a function type that returns type TYPE. TYPEPTR, if nonzero, points | |
285 | to a pointer to memory where the function type should be stored. | |
286 | If *TYPEPTR is zero, update it to point to the function type we return. | |
287 | We allocate new memory if needed. */ | |
288 | ||
289 | struct type * | |
fba45db2 | 290 | make_function_type (struct type *type, struct type **typeptr) |
c906108c | 291 | { |
c5aa993b | 292 | register struct type *ntype; /* New type */ |
c906108c SS |
293 | struct objfile *objfile; |
294 | ||
295 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
296 | { | |
297 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
298 | if (typeptr) | |
299 | *typeptr = ntype; | |
300 | } | |
c5aa993b JM |
301 | else |
302 | /* We have storage, but need to reset it. */ | |
c906108c SS |
303 | { |
304 | ntype = *typeptr; | |
305 | objfile = TYPE_OBJFILE (ntype); | |
306 | memset ((char *) ntype, 0, sizeof (struct type)); | |
307 | TYPE_OBJFILE (ntype) = objfile; | |
308 | } | |
309 | ||
310 | TYPE_TARGET_TYPE (ntype) = type; | |
311 | ||
312 | TYPE_LENGTH (ntype) = 1; | |
313 | TYPE_CODE (ntype) = TYPE_CODE_FUNC; | |
c5aa993b | 314 | |
c906108c SS |
315 | return ntype; |
316 | } | |
317 | ||
318 | ||
319 | /* Given a type TYPE, return a type of functions that return that type. | |
320 | May need to construct such a type if this is the first use. */ | |
321 | ||
322 | struct type * | |
fba45db2 | 323 | lookup_function_type (struct type *type) |
c906108c | 324 | { |
c5aa993b | 325 | return make_function_type (type, (struct type **) 0); |
c906108c SS |
326 | } |
327 | ||
47663de5 MS |
328 | /* Identify address space identifier by name -- |
329 | return the integer flag defined in gdbtypes.h. */ | |
330 | extern int | |
331 | address_space_name_to_int (char *space_identifier) | |
332 | { | |
333 | /* Check for known address space delimiters. */ | |
334 | if (!strcmp (space_identifier, "code")) | |
335 | return TYPE_FLAG_CODE_SPACE; | |
336 | else if (!strcmp (space_identifier, "data")) | |
337 | return TYPE_FLAG_DATA_SPACE; | |
338 | else | |
339 | error ("Unknown address space specifier: \"%s\"", space_identifier); | |
340 | } | |
341 | ||
342 | /* Identify address space identifier by integer flag as defined in | |
343 | gdbtypes.h -- return the string version of the adress space name. */ | |
344 | ||
345 | extern char * | |
346 | address_space_int_to_name (int space_flag) | |
347 | { | |
348 | if (space_flag & TYPE_FLAG_CODE_SPACE) | |
349 | return "code"; | |
350 | else if (space_flag & TYPE_FLAG_DATA_SPACE) | |
351 | return "data"; | |
352 | else | |
353 | return NULL; | |
354 | } | |
355 | ||
356 | /* Make an address-space-delimited variant of a type -- a type that | |
357 | is identical to the one supplied except that it has an address | |
358 | space attribute attached to it (such as "code" or "data"). | |
359 | ||
360 | This is for Harvard architectures. */ | |
361 | ||
362 | struct type * | |
363 | make_type_with_address_space (struct type *type, int space_flag) | |
364 | { | |
365 | struct type *ntype; | |
366 | ||
367 | ntype = type; | |
368 | do { | |
369 | if ((ntype->flags & space_flag) != 0) | |
370 | return ntype; | |
371 | ntype = TYPE_AS_TYPE (ntype); | |
372 | } while (ntype != type); | |
373 | ||
374 | /* Create a new, duplicate type. */ | |
375 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
376 | /* Copy original type. */ | |
377 | memcpy ((char *) ntype, (char *) type, sizeof (struct type)); | |
378 | ||
379 | /* Pointers or references to the original type are not relevant to | |
380 | the new type; but if the original type is a pointer, the new type | |
381 | points to the same thing (so TYPE_TARGET_TYPE remains unchanged). */ | |
382 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; | |
383 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; | |
384 | TYPE_CV_TYPE (ntype) = ntype; | |
385 | ||
386 | /* Chain the new address-space-specific type to the old type. */ | |
387 | ntype->as_type = type->as_type; | |
388 | type->as_type = ntype; | |
389 | ||
390 | /* Now set the address-space flag, and return the new type. */ | |
391 | ntype->flags |= space_flag; | |
392 | return ntype; | |
393 | } | |
394 | ||
c906108c SS |
395 | |
396 | /* Make a "c-v" variant of a type -- a type that is identical to the | |
397 | one supplied except that it may have const or volatile attributes | |
398 | CNST is a flag for setting the const attribute | |
399 | VOLTL is a flag for setting the volatile attribute | |
400 | TYPE is the base type whose variant we are creating. | |
401 | TYPEPTR, if nonzero, points | |
402 | to a pointer to memory where the reference type should be stored. | |
403 | If *TYPEPTR is zero, update it to point to the reference type we return. | |
404 | We allocate new memory if needed. */ | |
405 | ||
406 | struct type * | |
fba45db2 | 407 | make_cv_type (int cnst, int voltl, struct type *type, struct type **typeptr) |
c906108c | 408 | { |
c5aa993b JM |
409 | register struct type *ntype; /* New type */ |
410 | register struct type *tmp_type = type; /* tmp type */ | |
c906108c SS |
411 | struct objfile *objfile; |
412 | ||
413 | ntype = TYPE_CV_TYPE (type); | |
414 | ||
415 | while (ntype != type) | |
416 | { | |
417 | if ((TYPE_CONST (ntype) == cnst) && | |
c5aa993b JM |
418 | (TYPE_VOLATILE (ntype) == voltl)) |
419 | { | |
420 | if (typeptr == 0) | |
421 | return ntype; | |
422 | else if (*typeptr == 0) | |
423 | { | |
424 | *typeptr = ntype; /* Tracking alloc, and we have new type. */ | |
425 | return ntype; | |
426 | } | |
427 | } | |
c906108c SS |
428 | tmp_type = ntype; |
429 | ntype = TYPE_CV_TYPE (ntype); | |
430 | } | |
431 | ||
432 | if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ | |
433 | { | |
434 | ntype = alloc_type (TYPE_OBJFILE (type)); | |
435 | if (typeptr) | |
436 | *typeptr = ntype; | |
437 | } | |
c5aa993b JM |
438 | else |
439 | /* We have storage, but need to reset it. */ | |
c906108c SS |
440 | { |
441 | ntype = *typeptr; | |
442 | objfile = TYPE_OBJFILE (ntype); | |
443 | /* memset ((char *) ntype, 0, sizeof (struct type)); */ | |
444 | TYPE_OBJFILE (ntype) = objfile; | |
445 | } | |
446 | ||
c5aa993b | 447 | /* Copy original type */ |
c906108c SS |
448 | memcpy ((char *) ntype, (char *) type, sizeof (struct type)); |
449 | /* But zero out fields that shouldn't be copied */ | |
c5aa993b JM |
450 | TYPE_POINTER_TYPE (ntype) = (struct type *) 0; /* Need new pointer kind */ |
451 | TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; /* Need new referene kind */ | |
47663de5 | 452 | TYPE_AS_TYPE (ntype) = ntype; /* Need new address-space kind. */ |
c906108c SS |
453 | /* Note: TYPE_TARGET_TYPE can be left as is */ |
454 | ||
455 | /* Set flags appropriately */ | |
456 | if (cnst) | |
c5aa993b | 457 | TYPE_FLAGS (ntype) |= TYPE_FLAG_CONST; |
c906108c | 458 | else |
c5aa993b | 459 | TYPE_FLAGS (ntype) &= ~TYPE_FLAG_CONST; |
c906108c SS |
460 | |
461 | if (voltl) | |
c5aa993b | 462 | TYPE_FLAGS (ntype) |= TYPE_FLAG_VOLATILE; |
c906108c | 463 | else |
c5aa993b | 464 | TYPE_FLAGS (ntype) &= ~TYPE_FLAG_VOLATILE; |
c906108c SS |
465 | |
466 | /* Fix the chain of cv variants */ | |
467 | TYPE_CV_TYPE (ntype) = type; | |
468 | TYPE_CV_TYPE (tmp_type) = ntype; | |
469 | ||
470 | return ntype; | |
471 | } | |
472 | ||
a02fd225 DJ |
473 | /* When reading in a class type, we may have created references to |
474 | cv-qualified versions of the type (in method arguments, for | |
475 | instance). Update everything on the cv ring from the primary | |
476 | type TYPE. | |
c906108c | 477 | |
a02fd225 DJ |
478 | The only reason we do not need to do the same thing for address |
479 | spaces is that type readers do not create address space qualified | |
480 | types. */ | |
481 | void | |
482 | finish_cv_type (struct type *type) | |
483 | { | |
484 | struct type *ntype, *cv_type, *ptr_type, *ref_type; | |
485 | int cv_flags; | |
486 | ||
487 | gdb_assert (!TYPE_CONST (type) && !TYPE_VOLATILE (type)); | |
488 | ||
489 | ntype = type; | |
490 | while ((ntype = TYPE_CV_TYPE (ntype)) != type) | |
491 | { | |
492 | /* Save cv_flags. */ | |
493 | cv_flags = TYPE_FLAGS (ntype) & (TYPE_FLAG_VOLATILE | TYPE_FLAG_CONST); | |
494 | ||
495 | /* If any reference or pointer types were created, save them too. */ | |
496 | ptr_type = TYPE_POINTER_TYPE (ntype); | |
497 | ref_type = TYPE_REFERENCE_TYPE (ntype); | |
498 | ||
499 | /* Don't disturb the CV chain. */ | |
500 | cv_type = TYPE_CV_TYPE (ntype); | |
501 | ||
502 | /* Verify that we haven't added any address-space qualified types, | |
503 | for the future. */ | |
504 | gdb_assert (ntype == TYPE_AS_TYPE (ntype)); | |
505 | ||
506 | /* Copy original type */ | |
507 | memcpy ((char *) ntype, (char *) type, sizeof (struct type)); | |
c906108c | 508 | |
a02fd225 DJ |
509 | /* Restore everything. */ |
510 | TYPE_POINTER_TYPE (ntype) = ptr_type; | |
511 | TYPE_REFERENCE_TYPE (ntype) = ref_type; | |
512 | TYPE_CV_TYPE (ntype) = cv_type; | |
513 | TYPE_FLAGS (ntype) = TYPE_FLAGS (ntype) | cv_flags; | |
514 | ||
515 | TYPE_AS_TYPE (ntype) = ntype; | |
516 | } | |
517 | } | |
c906108c SS |
518 | |
519 | /* Implement direct support for MEMBER_TYPE in GNU C++. | |
520 | May need to construct such a type if this is the first use. | |
521 | The TYPE is the type of the member. The DOMAIN is the type | |
522 | of the aggregate that the member belongs to. */ | |
523 | ||
524 | struct type * | |
fba45db2 | 525 | lookup_member_type (struct type *type, struct type *domain) |
c906108c SS |
526 | { |
527 | register struct type *mtype; | |
528 | ||
529 | mtype = alloc_type (TYPE_OBJFILE (type)); | |
530 | smash_to_member_type (mtype, domain, type); | |
531 | return (mtype); | |
532 | } | |
533 | ||
7b83ea04 | 534 | /* Allocate a stub method whose return type is TYPE. |
c906108c SS |
535 | This apparently happens for speed of symbol reading, since parsing |
536 | out the arguments to the method is cpu-intensive, the way we are doing | |
537 | it. So, we will fill in arguments later. | |
538 | This always returns a fresh type. */ | |
539 | ||
540 | struct type * | |
fba45db2 | 541 | allocate_stub_method (struct type *type) |
c906108c SS |
542 | { |
543 | struct type *mtype; | |
544 | ||
545 | mtype = alloc_type (TYPE_OBJFILE (type)); | |
546 | TYPE_TARGET_TYPE (mtype) = type; | |
547 | /* _DOMAIN_TYPE (mtype) = unknown yet */ | |
548 | /* _ARG_TYPES (mtype) = unknown yet */ | |
549 | TYPE_FLAGS (mtype) = TYPE_FLAG_STUB; | |
550 | TYPE_CODE (mtype) = TYPE_CODE_METHOD; | |
551 | TYPE_LENGTH (mtype) = 1; | |
552 | return (mtype); | |
553 | } | |
554 | ||
555 | /* Create a range type using either a blank type supplied in RESULT_TYPE, | |
556 | or creating a new type, inheriting the objfile from INDEX_TYPE. | |
557 | ||
558 | Indices will be of type INDEX_TYPE, and will range from LOW_BOUND to | |
559 | HIGH_BOUND, inclusive. | |
560 | ||
561 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
562 | sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ | |
563 | ||
564 | struct type * | |
fba45db2 KB |
565 | create_range_type (struct type *result_type, struct type *index_type, |
566 | int low_bound, int high_bound) | |
c906108c SS |
567 | { |
568 | if (result_type == NULL) | |
569 | { | |
570 | result_type = alloc_type (TYPE_OBJFILE (index_type)); | |
571 | } | |
572 | TYPE_CODE (result_type) = TYPE_CODE_RANGE; | |
573 | TYPE_TARGET_TYPE (result_type) = index_type; | |
574 | if (TYPE_FLAGS (index_type) & TYPE_FLAG_STUB) | |
575 | TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB; | |
576 | else | |
577 | TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); | |
578 | TYPE_NFIELDS (result_type) = 2; | |
579 | TYPE_FIELDS (result_type) = (struct field *) | |
580 | TYPE_ALLOC (result_type, 2 * sizeof (struct field)); | |
581 | memset (TYPE_FIELDS (result_type), 0, 2 * sizeof (struct field)); | |
582 | TYPE_FIELD_BITPOS (result_type, 0) = low_bound; | |
583 | TYPE_FIELD_BITPOS (result_type, 1) = high_bound; | |
c5aa993b JM |
584 | TYPE_FIELD_TYPE (result_type, 0) = builtin_type_int; /* FIXME */ |
585 | TYPE_FIELD_TYPE (result_type, 1) = builtin_type_int; /* FIXME */ | |
c906108c | 586 | |
c5aa993b | 587 | if (low_bound >= 0) |
c906108c SS |
588 | TYPE_FLAGS (result_type) |= TYPE_FLAG_UNSIGNED; |
589 | ||
590 | return (result_type); | |
591 | } | |
592 | ||
593 | /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type TYPE. | |
594 | Return 1 of type is a range type, 0 if it is discrete (and bounds | |
595 | will fit in LONGEST), or -1 otherwise. */ | |
596 | ||
597 | int | |
fba45db2 | 598 | get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
c906108c SS |
599 | { |
600 | CHECK_TYPEDEF (type); | |
601 | switch (TYPE_CODE (type)) | |
602 | { | |
603 | case TYPE_CODE_RANGE: | |
604 | *lowp = TYPE_LOW_BOUND (type); | |
605 | *highp = TYPE_HIGH_BOUND (type); | |
606 | return 1; | |
607 | case TYPE_CODE_ENUM: | |
608 | if (TYPE_NFIELDS (type) > 0) | |
609 | { | |
610 | /* The enums may not be sorted by value, so search all | |
611 | entries */ | |
612 | int i; | |
613 | ||
614 | *lowp = *highp = TYPE_FIELD_BITPOS (type, 0); | |
615 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
616 | { | |
617 | if (TYPE_FIELD_BITPOS (type, i) < *lowp) | |
618 | *lowp = TYPE_FIELD_BITPOS (type, i); | |
619 | if (TYPE_FIELD_BITPOS (type, i) > *highp) | |
620 | *highp = TYPE_FIELD_BITPOS (type, i); | |
621 | } | |
622 | ||
623 | /* Set unsigned indicator if warranted. */ | |
c5aa993b | 624 | if (*lowp >= 0) |
c906108c SS |
625 | { |
626 | TYPE_FLAGS (type) |= TYPE_FLAG_UNSIGNED; | |
627 | } | |
628 | } | |
629 | else | |
630 | { | |
631 | *lowp = 0; | |
632 | *highp = -1; | |
633 | } | |
634 | return 0; | |
635 | case TYPE_CODE_BOOL: | |
636 | *lowp = 0; | |
637 | *highp = 1; | |
638 | return 0; | |
639 | case TYPE_CODE_INT: | |
c5aa993b | 640 | if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
c906108c SS |
641 | return -1; |
642 | if (!TYPE_UNSIGNED (type)) | |
643 | { | |
c5aa993b | 644 | *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
c906108c SS |
645 | *highp = -*lowp - 1; |
646 | return 0; | |
647 | } | |
648 | /* ... fall through for unsigned ints ... */ | |
649 | case TYPE_CODE_CHAR: | |
650 | *lowp = 0; | |
651 | /* This round-about calculation is to avoid shifting by | |
7b83ea04 AC |
652 | TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
653 | if TYPE_LENGTH (type) == sizeof (LONGEST). */ | |
c906108c SS |
654 | *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
655 | *highp = (*highp - 1) | *highp; | |
656 | return 0; | |
657 | default: | |
658 | return -1; | |
659 | } | |
660 | } | |
661 | ||
662 | /* Create an array type using either a blank type supplied in RESULT_TYPE, | |
663 | or creating a new type, inheriting the objfile from RANGE_TYPE. | |
664 | ||
665 | Elements will be of type ELEMENT_TYPE, the indices will be of type | |
666 | RANGE_TYPE. | |
667 | ||
668 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
669 | sure it is TYPE_CODE_UNDEF before we bash it into an array type? */ | |
670 | ||
671 | struct type * | |
fba45db2 KB |
672 | create_array_type (struct type *result_type, struct type *element_type, |
673 | struct type *range_type) | |
c906108c SS |
674 | { |
675 | LONGEST low_bound, high_bound; | |
676 | ||
677 | if (result_type == NULL) | |
678 | { | |
679 | result_type = alloc_type (TYPE_OBJFILE (range_type)); | |
680 | } | |
681 | TYPE_CODE (result_type) = TYPE_CODE_ARRAY; | |
682 | TYPE_TARGET_TYPE (result_type) = element_type; | |
683 | if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) | |
684 | low_bound = high_bound = 0; | |
685 | CHECK_TYPEDEF (element_type); | |
686 | TYPE_LENGTH (result_type) = | |
687 | TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); | |
688 | TYPE_NFIELDS (result_type) = 1; | |
689 | TYPE_FIELDS (result_type) = | |
690 | (struct field *) TYPE_ALLOC (result_type, sizeof (struct field)); | |
691 | memset (TYPE_FIELDS (result_type), 0, sizeof (struct field)); | |
692 | TYPE_FIELD_TYPE (result_type, 0) = range_type; | |
693 | TYPE_VPTR_FIELDNO (result_type) = -1; | |
694 | ||
695 | /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays */ | |
696 | if (TYPE_LENGTH (result_type) == 0) | |
697 | TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB; | |
698 | ||
699 | return (result_type); | |
700 | } | |
701 | ||
702 | /* Create a string type using either a blank type supplied in RESULT_TYPE, | |
703 | or creating a new type. String types are similar enough to array of | |
704 | char types that we can use create_array_type to build the basic type | |
705 | and then bash it into a string type. | |
706 | ||
707 | For fixed length strings, the range type contains 0 as the lower | |
708 | bound and the length of the string minus one as the upper bound. | |
709 | ||
710 | FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make | |
711 | sure it is TYPE_CODE_UNDEF before we bash it into a string type? */ | |
712 | ||
713 | struct type * | |
fba45db2 | 714 | create_string_type (struct type *result_type, struct type *range_type) |
c906108c SS |
715 | { |
716 | result_type = create_array_type (result_type, | |
717 | *current_language->string_char_type, | |
718 | range_type); | |
719 | TYPE_CODE (result_type) = TYPE_CODE_STRING; | |
720 | return (result_type); | |
721 | } | |
722 | ||
723 | struct type * | |
fba45db2 | 724 | create_set_type (struct type *result_type, struct type *domain_type) |
c906108c SS |
725 | { |
726 | LONGEST low_bound, high_bound, bit_length; | |
727 | if (result_type == NULL) | |
728 | { | |
729 | result_type = alloc_type (TYPE_OBJFILE (domain_type)); | |
730 | } | |
731 | TYPE_CODE (result_type) = TYPE_CODE_SET; | |
732 | TYPE_NFIELDS (result_type) = 1; | |
733 | TYPE_FIELDS (result_type) = (struct field *) | |
734 | TYPE_ALLOC (result_type, 1 * sizeof (struct field)); | |
735 | memset (TYPE_FIELDS (result_type), 0, sizeof (struct field)); | |
736 | ||
c5aa993b | 737 | if (!(TYPE_FLAGS (domain_type) & TYPE_FLAG_STUB)) |
c906108c SS |
738 | { |
739 | if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) | |
740 | low_bound = high_bound = 0; | |
741 | bit_length = high_bound - low_bound + 1; | |
742 | TYPE_LENGTH (result_type) | |
743 | = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; | |
744 | } | |
745 | TYPE_FIELD_TYPE (result_type, 0) = domain_type; | |
746 | ||
c5aa993b | 747 | if (low_bound >= 0) |
c906108c SS |
748 | TYPE_FLAGS (result_type) |= TYPE_FLAG_UNSIGNED; |
749 | ||
750 | return (result_type); | |
751 | } | |
752 | ||
917317f4 JM |
753 | |
754 | /* Construct and return a type of the form: | |
755 | struct NAME { ELT_TYPE ELT_NAME[N]; } | |
756 | We use these types for SIMD registers. For example, the type of | |
757 | the SSE registers on the late x86-family processors is: | |
758 | struct __builtin_v4sf { float f[4]; } | |
759 | built by the function call: | |
760 | init_simd_type ("__builtin_v4sf", builtin_type_float, "f", 4) | |
761 | The type returned is a permanent type, allocated using malloc; it | |
762 | doesn't live in any objfile's obstack. */ | |
c2d11a7d | 763 | static struct type * |
917317f4 JM |
764 | init_simd_type (char *name, |
765 | struct type *elt_type, | |
766 | char *elt_name, | |
767 | int n) | |
768 | { | |
769 | struct type *t; | |
770 | struct field *f; | |
771 | ||
772 | /* Build the field structure. */ | |
773 | f = xmalloc (sizeof (*f)); | |
774 | memset (f, 0, sizeof (*f)); | |
775 | f->loc.bitpos = 0; | |
776 | f->type = create_array_type (0, elt_type, | |
5c44784c JM |
777 | create_range_type (0, builtin_type_int, |
778 | 0, n-1)); | |
917317f4 JM |
779 | f->name = elt_name; |
780 | ||
781 | /* Build a struct type with that field. */ | |
782 | t = init_type (TYPE_CODE_STRUCT, n * TYPE_LENGTH (elt_type), 0, 0, 0); | |
783 | t->nfields = 1; | |
784 | t->fields = f; | |
785 | t->tag_name = name; | |
786 | ||
787 | return t; | |
788 | } | |
789 | ||
790 | ||
7b83ea04 | 791 | /* Smash TYPE to be a type of members of DOMAIN with type TO_TYPE. |
c906108c SS |
792 | A MEMBER is a wierd thing -- it amounts to a typed offset into |
793 | a struct, e.g. "an int at offset 8". A MEMBER TYPE doesn't | |
794 | include the offset (that's the value of the MEMBER itself), but does | |
795 | include the structure type into which it points (for some reason). | |
796 | ||
797 | When "smashing" the type, we preserve the objfile that the | |
798 | old type pointed to, since we aren't changing where the type is actually | |
799 | allocated. */ | |
800 | ||
801 | void | |
fba45db2 KB |
802 | smash_to_member_type (struct type *type, struct type *domain, |
803 | struct type *to_type) | |
c906108c SS |
804 | { |
805 | struct objfile *objfile; | |
806 | ||
807 | objfile = TYPE_OBJFILE (type); | |
808 | ||
809 | memset ((char *) type, 0, sizeof (struct type)); | |
810 | TYPE_OBJFILE (type) = objfile; | |
811 | TYPE_TARGET_TYPE (type) = to_type; | |
812 | TYPE_DOMAIN_TYPE (type) = domain; | |
813 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ | |
814 | TYPE_CODE (type) = TYPE_CODE_MEMBER; | |
815 | } | |
816 | ||
817 | /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE. | |
818 | METHOD just means `function that gets an extra "this" argument'. | |
819 | ||
820 | When "smashing" the type, we preserve the objfile that the | |
821 | old type pointed to, since we aren't changing where the type is actually | |
822 | allocated. */ | |
823 | ||
824 | void | |
fba45db2 KB |
825 | smash_to_method_type (struct type *type, struct type *domain, |
826 | struct type *to_type, struct type **args) | |
c906108c SS |
827 | { |
828 | struct objfile *objfile; | |
829 | ||
830 | objfile = TYPE_OBJFILE (type); | |
831 | ||
832 | memset ((char *) type, 0, sizeof (struct type)); | |
833 | TYPE_OBJFILE (type) = objfile; | |
834 | TYPE_TARGET_TYPE (type) = to_type; | |
835 | TYPE_DOMAIN_TYPE (type) = domain; | |
836 | TYPE_ARG_TYPES (type) = args; | |
837 | TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ | |
838 | TYPE_CODE (type) = TYPE_CODE_METHOD; | |
839 | } | |
840 | ||
841 | /* Return a typename for a struct/union/enum type without "struct ", | |
842 | "union ", or "enum ". If the type has a NULL name, return NULL. */ | |
843 | ||
844 | char * | |
fba45db2 | 845 | type_name_no_tag (register const struct type *type) |
c906108c SS |
846 | { |
847 | if (TYPE_TAG_NAME (type) != NULL) | |
848 | return TYPE_TAG_NAME (type); | |
849 | ||
850 | /* Is there code which expects this to return the name if there is no | |
851 | tag name? My guess is that this is mainly used for C++ in cases where | |
852 | the two will always be the same. */ | |
853 | return TYPE_NAME (type); | |
854 | } | |
855 | ||
7b83ea04 | 856 | /* Lookup a primitive type named NAME. |
c5aa993b | 857 | Return zero if NAME is not a primitive type. */ |
c906108c SS |
858 | |
859 | struct type * | |
fba45db2 | 860 | lookup_primitive_typename (char *name) |
c906108c | 861 | { |
c5aa993b JM |
862 | struct type **const *p; |
863 | ||
864 | for (p = current_language->la_builtin_type_vector; *p != NULL; p++) | |
865 | { | |
866 | if (STREQ ((**p)->name, name)) | |
867 | { | |
868 | return (**p); | |
869 | } | |
870 | } | |
871 | return (NULL); | |
c906108c SS |
872 | } |
873 | ||
874 | /* Lookup a typedef or primitive type named NAME, | |
875 | visible in lexical block BLOCK. | |
876 | If NOERR is nonzero, return zero if NAME is not suitably defined. */ | |
877 | ||
878 | struct type * | |
fba45db2 | 879 | lookup_typename (char *name, struct block *block, int noerr) |
c906108c SS |
880 | { |
881 | register struct symbol *sym; | |
882 | register struct type *tmp; | |
883 | ||
884 | sym = lookup_symbol (name, block, VAR_NAMESPACE, 0, (struct symtab **) NULL); | |
885 | if (sym == NULL || SYMBOL_CLASS (sym) != LOC_TYPEDEF) | |
886 | { | |
887 | tmp = lookup_primitive_typename (name); | |
888 | if (tmp) | |
889 | { | |
890 | return (tmp); | |
891 | } | |
892 | else if (!tmp && noerr) | |
893 | { | |
894 | return (NULL); | |
895 | } | |
896 | else | |
897 | { | |
898 | error ("No type named %s.", name); | |
899 | } | |
900 | } | |
901 | return (SYMBOL_TYPE (sym)); | |
902 | } | |
903 | ||
904 | struct type * | |
fba45db2 | 905 | lookup_unsigned_typename (char *name) |
c906108c SS |
906 | { |
907 | char *uns = alloca (strlen (name) + 10); | |
908 | ||
909 | strcpy (uns, "unsigned "); | |
910 | strcpy (uns + 9, name); | |
911 | return (lookup_typename (uns, (struct block *) NULL, 0)); | |
912 | } | |
913 | ||
914 | struct type * | |
fba45db2 | 915 | lookup_signed_typename (char *name) |
c906108c SS |
916 | { |
917 | struct type *t; | |
918 | char *uns = alloca (strlen (name) + 8); | |
919 | ||
920 | strcpy (uns, "signed "); | |
921 | strcpy (uns + 7, name); | |
922 | t = lookup_typename (uns, (struct block *) NULL, 1); | |
923 | /* If we don't find "signed FOO" just try again with plain "FOO". */ | |
924 | if (t != NULL) | |
925 | return t; | |
926 | return lookup_typename (name, (struct block *) NULL, 0); | |
927 | } | |
928 | ||
929 | /* Lookup a structure type named "struct NAME", | |
930 | visible in lexical block BLOCK. */ | |
931 | ||
932 | struct type * | |
fba45db2 | 933 | lookup_struct (char *name, struct block *block) |
c906108c SS |
934 | { |
935 | register struct symbol *sym; | |
936 | ||
937 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, | |
938 | (struct symtab **) NULL); | |
939 | ||
940 | if (sym == NULL) | |
941 | { | |
942 | error ("No struct type named %s.", name); | |
943 | } | |
944 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
945 | { | |
946 | error ("This context has class, union or enum %s, not a struct.", name); | |
947 | } | |
948 | return (SYMBOL_TYPE (sym)); | |
949 | } | |
950 | ||
951 | /* Lookup a union type named "union NAME", | |
952 | visible in lexical block BLOCK. */ | |
953 | ||
954 | struct type * | |
fba45db2 | 955 | lookup_union (char *name, struct block *block) |
c906108c SS |
956 | { |
957 | register struct symbol *sym; | |
c5aa993b | 958 | struct type *t; |
c906108c SS |
959 | |
960 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, | |
961 | (struct symtab **) NULL); | |
962 | ||
963 | if (sym == NULL) | |
964 | error ("No union type named %s.", name); | |
965 | ||
c5aa993b | 966 | t = SYMBOL_TYPE (sym); |
c906108c SS |
967 | |
968 | if (TYPE_CODE (t) == TYPE_CODE_UNION) | |
969 | return (t); | |
970 | ||
971 | /* C++ unions may come out with TYPE_CODE_CLASS, but we look at | |
972 | * a further "declared_type" field to discover it is really a union. | |
973 | */ | |
c5aa993b JM |
974 | if (HAVE_CPLUS_STRUCT (t)) |
975 | if (TYPE_DECLARED_TYPE (t) == DECLARED_TYPE_UNION) | |
c906108c SS |
976 | return (t); |
977 | ||
978 | /* If we get here, it's not a union */ | |
979 | error ("This context has class, struct or enum %s, not a union.", name); | |
980 | } | |
981 | ||
982 | ||
983 | /* Lookup an enum type named "enum NAME", | |
984 | visible in lexical block BLOCK. */ | |
985 | ||
986 | struct type * | |
fba45db2 | 987 | lookup_enum (char *name, struct block *block) |
c906108c SS |
988 | { |
989 | register struct symbol *sym; | |
990 | ||
c5aa993b | 991 | sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0, |
c906108c SS |
992 | (struct symtab **) NULL); |
993 | if (sym == NULL) | |
994 | { | |
995 | error ("No enum type named %s.", name); | |
996 | } | |
997 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) | |
998 | { | |
999 | error ("This context has class, struct or union %s, not an enum.", name); | |
1000 | } | |
1001 | return (SYMBOL_TYPE (sym)); | |
1002 | } | |
1003 | ||
1004 | /* Lookup a template type named "template NAME<TYPE>", | |
1005 | visible in lexical block BLOCK. */ | |
1006 | ||
1007 | struct type * | |
fba45db2 | 1008 | lookup_template_type (char *name, struct type *type, struct block *block) |
c906108c SS |
1009 | { |
1010 | struct symbol *sym; | |
c5aa993b | 1011 | char *nam = (char *) alloca (strlen (name) + strlen (type->name) + 4); |
c906108c SS |
1012 | strcpy (nam, name); |
1013 | strcat (nam, "<"); | |
1014 | strcat (nam, type->name); | |
c5aa993b | 1015 | strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
c906108c | 1016 | |
c5aa993b | 1017 | sym = lookup_symbol (nam, block, VAR_NAMESPACE, 0, (struct symtab **) NULL); |
c906108c SS |
1018 | |
1019 | if (sym == NULL) | |
1020 | { | |
1021 | error ("No template type named %s.", name); | |
1022 | } | |
1023 | if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) | |
1024 | { | |
1025 | error ("This context has class, union or enum %s, not a struct.", name); | |
1026 | } | |
1027 | return (SYMBOL_TYPE (sym)); | |
1028 | } | |
1029 | ||
7b83ea04 | 1030 | /* Given a type TYPE, lookup the type of the component of type named NAME. |
c906108c SS |
1031 | |
1032 | TYPE can be either a struct or union, or a pointer or reference to a struct or | |
1033 | union. If it is a pointer or reference, its target type is automatically used. | |
1034 | Thus '.' and '->' are interchangable, as specified for the definitions of the | |
1035 | expression element types STRUCTOP_STRUCT and STRUCTOP_PTR. | |
1036 | ||
1037 | If NOERR is nonzero, return zero if NAME is not suitably defined. | |
1038 | If NAME is the name of a baseclass type, return that type. */ | |
1039 | ||
1040 | struct type * | |
fba45db2 | 1041 | lookup_struct_elt_type (struct type *type, char *name, int noerr) |
c906108c SS |
1042 | { |
1043 | int i; | |
1044 | ||
1045 | for (;;) | |
1046 | { | |
1047 | CHECK_TYPEDEF (type); | |
1048 | if (TYPE_CODE (type) != TYPE_CODE_PTR | |
1049 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
1050 | break; | |
1051 | type = TYPE_TARGET_TYPE (type); | |
1052 | } | |
1053 | ||
1054 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT && | |
1055 | TYPE_CODE (type) != TYPE_CODE_UNION) | |
1056 | { | |
1057 | target_terminal_ours (); | |
1058 | gdb_flush (gdb_stdout); | |
1059 | fprintf_unfiltered (gdb_stderr, "Type "); | |
1060 | type_print (type, "", gdb_stderr, -1); | |
1061 | error (" is not a structure or union type."); | |
1062 | } | |
1063 | ||
1064 | #if 0 | |
1065 | /* FIXME: This change put in by Michael seems incorrect for the case where | |
1066 | the structure tag name is the same as the member name. I.E. when doing | |
1067 | "ptype bell->bar" for "struct foo { int bar; int foo; } bell;" | |
1068 | Disabled by fnf. */ | |
1069 | { | |
1070 | char *typename; | |
1071 | ||
1072 | typename = type_name_no_tag (type); | |
1073 | if (typename != NULL && STREQ (typename, name)) | |
1074 | return type; | |
1075 | } | |
1076 | #endif | |
1077 | ||
1078 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1079 | { | |
1080 | char *t_field_name = TYPE_FIELD_NAME (type, i); | |
1081 | ||
db577aea | 1082 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
c906108c SS |
1083 | { |
1084 | return TYPE_FIELD_TYPE (type, i); | |
1085 | } | |
1086 | } | |
1087 | ||
1088 | /* OK, it's not in this class. Recursively check the baseclasses. */ | |
1089 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1090 | { | |
1091 | struct type *t; | |
1092 | ||
1093 | t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, noerr); | |
1094 | if (t != NULL) | |
1095 | { | |
1096 | return t; | |
1097 | } | |
1098 | } | |
1099 | ||
1100 | if (noerr) | |
1101 | { | |
1102 | return NULL; | |
1103 | } | |
c5aa993b | 1104 | |
c906108c SS |
1105 | target_terminal_ours (); |
1106 | gdb_flush (gdb_stdout); | |
1107 | fprintf_unfiltered (gdb_stderr, "Type "); | |
1108 | type_print (type, "", gdb_stderr, -1); | |
1109 | fprintf_unfiltered (gdb_stderr, " has no component named "); | |
1110 | fputs_filtered (name, gdb_stderr); | |
1111 | error ("."); | |
c5aa993b | 1112 | return (struct type *) -1; /* For lint */ |
c906108c SS |
1113 | } |
1114 | ||
1115 | /* If possible, make the vptr_fieldno and vptr_basetype fields of TYPE | |
1116 | valid. Callers should be aware that in some cases (for example, | |
1117 | the type or one of its baseclasses is a stub type and we are | |
1118 | debugging a .o file), this function will not be able to find the virtual | |
1119 | function table pointer, and vptr_fieldno will remain -1 and vptr_basetype | |
1120 | will remain NULL. */ | |
1121 | ||
1122 | void | |
fba45db2 | 1123 | fill_in_vptr_fieldno (struct type *type) |
c906108c SS |
1124 | { |
1125 | CHECK_TYPEDEF (type); | |
1126 | ||
1127 | if (TYPE_VPTR_FIELDNO (type) < 0) | |
1128 | { | |
1129 | int i; | |
1130 | ||
1131 | /* We must start at zero in case the first (and only) baseclass is | |
7b83ea04 | 1132 | virtual (and hence we cannot share the table pointer). */ |
c906108c SS |
1133 | for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
1134 | { | |
1135 | fill_in_vptr_fieldno (TYPE_BASECLASS (type, i)); | |
1136 | if (TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type, i)) >= 0) | |
1137 | { | |
1138 | TYPE_VPTR_FIELDNO (type) | |
1139 | = TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type, i)); | |
1140 | TYPE_VPTR_BASETYPE (type) | |
1141 | = TYPE_VPTR_BASETYPE (TYPE_BASECLASS (type, i)); | |
1142 | break; | |
1143 | } | |
1144 | } | |
1145 | } | |
1146 | } | |
1147 | ||
1148 | /* Find the method and field indices for the destructor in class type T. | |
1149 | Return 1 if the destructor was found, otherwise, return 0. */ | |
1150 | ||
1151 | int | |
fba45db2 | 1152 | get_destructor_fn_field (struct type *t, int *method_indexp, int *field_indexp) |
c906108c SS |
1153 | { |
1154 | int i; | |
1155 | ||
1156 | for (i = 0; i < TYPE_NFN_FIELDS (t); i++) | |
1157 | { | |
1158 | int j; | |
1159 | struct fn_field *f = TYPE_FN_FIELDLIST1 (t, i); | |
1160 | ||
1161 | for (j = 0; j < TYPE_FN_FIELDLIST_LENGTH (t, i); j++) | |
1162 | { | |
015a42b4 | 1163 | if (is_destructor_name (TYPE_FN_FIELD_PHYSNAME (f, j)) != 0) |
c906108c SS |
1164 | { |
1165 | *method_indexp = i; | |
1166 | *field_indexp = j; | |
1167 | return 1; | |
1168 | } | |
1169 | } | |
1170 | } | |
1171 | return 0; | |
1172 | } | |
1173 | ||
1174 | /* Added by Bryan Boreham, Kewill, Sun Sep 17 18:07:17 1989. | |
1175 | ||
1176 | If this is a stubbed struct (i.e. declared as struct foo *), see if | |
1177 | we can find a full definition in some other file. If so, copy this | |
1178 | definition, so we can use it in future. There used to be a comment (but | |
1179 | not any code) that if we don't find a full definition, we'd set a flag | |
1180 | so we don't spend time in the future checking the same type. That would | |
1181 | be a mistake, though--we might load in more symbols which contain a | |
1182 | full definition for the type. | |
1183 | ||
7b83ea04 | 1184 | This used to be coded as a macro, but I don't think it is called |
c906108c SS |
1185 | often enough to merit such treatment. */ |
1186 | ||
1187 | struct complaint stub_noname_complaint = | |
c5aa993b | 1188 | {"stub type has NULL name", 0, 0}; |
c906108c SS |
1189 | |
1190 | struct type * | |
a02fd225 | 1191 | check_typedef (struct type *type) |
c906108c SS |
1192 | { |
1193 | struct type *orig_type = type; | |
a02fd225 DJ |
1194 | int is_const, is_volatile; |
1195 | ||
c906108c SS |
1196 | while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
1197 | { | |
1198 | if (!TYPE_TARGET_TYPE (type)) | |
1199 | { | |
c5aa993b | 1200 | char *name; |
c906108c SS |
1201 | struct symbol *sym; |
1202 | ||
1203 | /* It is dangerous to call lookup_symbol if we are currently | |
1204 | reading a symtab. Infinite recursion is one danger. */ | |
1205 | if (currently_reading_symtab) | |
1206 | return type; | |
1207 | ||
1208 | name = type_name_no_tag (type); | |
1209 | /* FIXME: shouldn't we separately check the TYPE_NAME and the | |
1210 | TYPE_TAG_NAME, and look in STRUCT_NAMESPACE and/or VAR_NAMESPACE | |
1211 | as appropriate? (this code was written before TYPE_NAME and | |
1212 | TYPE_TAG_NAME were separate). */ | |
1213 | if (name == NULL) | |
1214 | { | |
1215 | complain (&stub_noname_complaint); | |
1216 | return type; | |
1217 | } | |
c5aa993b | 1218 | sym = lookup_symbol (name, 0, STRUCT_NAMESPACE, 0, |
c906108c SS |
1219 | (struct symtab **) NULL); |
1220 | if (sym) | |
1221 | TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); | |
1222 | else | |
c5aa993b | 1223 | TYPE_TARGET_TYPE (type) = alloc_type (NULL); /* TYPE_CODE_UNDEF */ |
c906108c SS |
1224 | } |
1225 | type = TYPE_TARGET_TYPE (type); | |
1226 | } | |
1227 | ||
a02fd225 DJ |
1228 | is_const = TYPE_CONST (type); |
1229 | is_volatile = TYPE_VOLATILE (type); | |
1230 | ||
c906108c SS |
1231 | /* If this is a struct/class/union with no fields, then check whether a |
1232 | full definition exists somewhere else. This is for systems where a | |
1233 | type definition with no fields is issued for such types, instead of | |
c5aa993b JM |
1234 | identifying them as stub types in the first place */ |
1235 | ||
c906108c SS |
1236 | if (TYPE_IS_OPAQUE (type) && opaque_type_resolution && !currently_reading_symtab) |
1237 | { | |
c5aa993b JM |
1238 | char *name = type_name_no_tag (type); |
1239 | struct type *newtype; | |
c906108c SS |
1240 | if (name == NULL) |
1241 | { | |
1242 | complain (&stub_noname_complaint); | |
1243 | return type; | |
1244 | } | |
1245 | newtype = lookup_transparent_type (name); | |
1246 | if (newtype) | |
a02fd225 | 1247 | make_cv_type (is_const, is_volatile, newtype, &type); |
c906108c SS |
1248 | } |
1249 | /* Otherwise, rely on the stub flag being set for opaque/stubbed types */ | |
c5aa993b | 1250 | else if ((TYPE_FLAGS (type) & TYPE_FLAG_STUB) && !currently_reading_symtab) |
c906108c | 1251 | { |
c5aa993b | 1252 | char *name = type_name_no_tag (type); |
c906108c | 1253 | /* FIXME: shouldn't we separately check the TYPE_NAME and the |
7b83ea04 AC |
1254 | TYPE_TAG_NAME, and look in STRUCT_NAMESPACE and/or VAR_NAMESPACE |
1255 | as appropriate? (this code was written before TYPE_NAME and | |
1256 | TYPE_TAG_NAME were separate). */ | |
c906108c SS |
1257 | struct symbol *sym; |
1258 | if (name == NULL) | |
1259 | { | |
1260 | complain (&stub_noname_complaint); | |
1261 | return type; | |
1262 | } | |
1263 | sym = lookup_symbol (name, 0, STRUCT_NAMESPACE, 0, (struct symtab **) NULL); | |
1264 | if (sym) | |
a02fd225 | 1265 | make_cv_type (is_const, is_volatile, SYMBOL_TYPE (sym), &type); |
c906108c SS |
1266 | } |
1267 | ||
1268 | if (TYPE_FLAGS (type) & TYPE_FLAG_TARGET_STUB) | |
1269 | { | |
1270 | struct type *range_type; | |
1271 | struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); | |
1272 | ||
1273 | if (TYPE_FLAGS (target_type) & (TYPE_FLAG_STUB | TYPE_FLAG_TARGET_STUB)) | |
c5aa993b JM |
1274 | { |
1275 | } | |
c906108c SS |
1276 | else if (TYPE_CODE (type) == TYPE_CODE_ARRAY |
1277 | && TYPE_NFIELDS (type) == 1 | |
1278 | && (TYPE_CODE (range_type = TYPE_FIELD_TYPE (type, 0)) | |
1279 | == TYPE_CODE_RANGE)) | |
1280 | { | |
1281 | /* Now recompute the length of the array type, based on its | |
1282 | number of elements and the target type's length. */ | |
1283 | TYPE_LENGTH (type) = | |
1284 | ((TYPE_FIELD_BITPOS (range_type, 1) | |
1285 | - TYPE_FIELD_BITPOS (range_type, 0) | |
1286 | + 1) | |
1287 | * TYPE_LENGTH (target_type)); | |
1288 | TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB; | |
1289 | } | |
1290 | else if (TYPE_CODE (type) == TYPE_CODE_RANGE) | |
1291 | { | |
1292 | TYPE_LENGTH (type) = TYPE_LENGTH (target_type); | |
1293 | TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB; | |
1294 | } | |
1295 | } | |
1296 | /* Cache TYPE_LENGTH for future use. */ | |
1297 | TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); | |
1298 | return type; | |
1299 | } | |
1300 | ||
1301 | /* New code added to support parsing of Cfront stabs strings */ | |
c906108c SS |
1302 | #define INIT_EXTRA { pextras->len=0; pextras->str[0]='\0'; } |
1303 | #define ADD_EXTRA(c) { pextras->str[pextras->len++]=c; } | |
1304 | ||
c5aa993b | 1305 | static void |
fba45db2 | 1306 | add_name (struct extra *pextras, char *n) |
c906108c SS |
1307 | { |
1308 | int nlen; | |
1309 | ||
c5aa993b | 1310 | if ((nlen = (n ? strlen (n) : 0)) == 0) |
c906108c | 1311 | return; |
c5aa993b JM |
1312 | sprintf (pextras->str + pextras->len, "%d%s", nlen, n); |
1313 | pextras->len = strlen (pextras->str); | |
c906108c SS |
1314 | } |
1315 | ||
c5aa993b | 1316 | static void |
fba45db2 | 1317 | add_mangled_type (struct extra *pextras, struct type *t) |
c906108c SS |
1318 | { |
1319 | enum type_code tcode; | |
1320 | int tlen, tflags; | |
c5aa993b | 1321 | char *tname; |
c906108c | 1322 | |
c5aa993b JM |
1323 | tcode = TYPE_CODE (t); |
1324 | tlen = TYPE_LENGTH (t); | |
1325 | tflags = TYPE_FLAGS (t); | |
1326 | tname = TYPE_NAME (t); | |
c906108c SS |
1327 | /* args of "..." seem to get mangled as "e" */ |
1328 | ||
c5aa993b JM |
1329 | switch (tcode) |
1330 | { | |
1331 | case TYPE_CODE_INT: | |
1332 | if (tflags == 1) | |
1333 | ADD_EXTRA ('U'); | |
1334 | switch (tlen) | |
1335 | { | |
1336 | case 1: | |
1337 | ADD_EXTRA ('c'); | |
1338 | break; | |
1339 | case 2: | |
1340 | ADD_EXTRA ('s'); | |
1341 | break; | |
1342 | case 4: | |
1343 | { | |
1344 | char *pname; | |
1345 | if ((pname = strrchr (tname, 'l'), pname) && !strcmp (pname, "long")) | |
9846de1b JM |
1346 | { |
1347 | ADD_EXTRA ('l'); | |
1348 | } | |
1349 | else | |
1350 | { | |
1351 | ADD_EXTRA ('i'); | |
1352 | } | |
c5aa993b JM |
1353 | } |
1354 | break; | |
1355 | default: | |
1356 | { | |
1357 | ||
1358 | static struct complaint msg = | |
1359 | {"Bad int type code length x%x\n", 0, 0}; | |
1360 | ||
1361 | complain (&msg, tlen); | |
1362 | ||
1363 | } | |
1364 | } | |
1365 | break; | |
1366 | case TYPE_CODE_FLT: | |
1367 | switch (tlen) | |
1368 | { | |
1369 | case 4: | |
1370 | ADD_EXTRA ('f'); | |
1371 | break; | |
1372 | case 8: | |
1373 | ADD_EXTRA ('d'); | |
1374 | break; | |
1375 | case 16: | |
1376 | ADD_EXTRA ('r'); | |
1377 | break; | |
1378 | default: | |
1379 | { | |
1380 | static struct complaint msg = | |
1381 | {"Bad float type code length x%x\n", 0, 0}; | |
1382 | complain (&msg, tlen); | |
1383 | } | |
1384 | } | |
1385 | break; | |
1386 | case TYPE_CODE_REF: | |
1387 | ADD_EXTRA ('R'); | |
1388 | /* followed by what it's a ref to */ | |
1389 | break; | |
1390 | case TYPE_CODE_PTR: | |
1391 | ADD_EXTRA ('P'); | |
1392 | /* followed by what it's a ptr to */ | |
1393 | break; | |
1394 | case TYPE_CODE_TYPEDEF: | |
1395 | { | |
1396 | static struct complaint msg = | |
1397 | {"Typedefs in overloaded functions not yet supported\n", 0, 0}; | |
1398 | complain (&msg); | |
1399 | } | |
c906108c SS |
1400 | /* followed by type bytes & name */ |
1401 | break; | |
1402 | case TYPE_CODE_FUNC: | |
c5aa993b | 1403 | ADD_EXTRA ('F'); |
c906108c SS |
1404 | /* followed by func's arg '_' & ret types */ |
1405 | break; | |
1406 | case TYPE_CODE_VOID: | |
c5aa993b | 1407 | ADD_EXTRA ('v'); |
c906108c SS |
1408 | break; |
1409 | case TYPE_CODE_METHOD: | |
c5aa993b | 1410 | ADD_EXTRA ('M'); |
c906108c | 1411 | /* followed by name of class and func's arg '_' & ret types */ |
c5aa993b JM |
1412 | add_name (pextras, tname); |
1413 | ADD_EXTRA ('F'); /* then mangle function */ | |
c906108c | 1414 | break; |
c5aa993b JM |
1415 | case TYPE_CODE_STRUCT: /* C struct */ |
1416 | case TYPE_CODE_UNION: /* C union */ | |
1417 | case TYPE_CODE_ENUM: /* Enumeration type */ | |
c906108c | 1418 | /* followed by name of type */ |
c5aa993b | 1419 | add_name (pextras, tname); |
c906108c SS |
1420 | break; |
1421 | ||
c5aa993b JM |
1422 | /* errors possible types/not supported */ |
1423 | case TYPE_CODE_CHAR: | |
1424 | case TYPE_CODE_ARRAY: /* Array type */ | |
1425 | case TYPE_CODE_MEMBER: /* Member type */ | |
c906108c | 1426 | case TYPE_CODE_BOOL: |
c5aa993b | 1427 | case TYPE_CODE_COMPLEX: /* Complex float */ |
c906108c | 1428 | case TYPE_CODE_UNDEF: |
c5aa993b JM |
1429 | case TYPE_CODE_SET: /* Pascal sets */ |
1430 | case TYPE_CODE_RANGE: | |
c906108c SS |
1431 | case TYPE_CODE_STRING: |
1432 | case TYPE_CODE_BITSTRING: | |
1433 | case TYPE_CODE_ERROR: | |
c5aa993b | 1434 | default: |
c906108c | 1435 | { |
c5aa993b JM |
1436 | static struct complaint msg = |
1437 | {"Unknown type code x%x\n", 0, 0}; | |
1438 | complain (&msg, tcode); | |
c906108c SS |
1439 | } |
1440 | } | |
1441 | if (t->target_type) | |
c5aa993b | 1442 | add_mangled_type (pextras, t->target_type); |
c906108c SS |
1443 | } |
1444 | ||
1445 | #if 0 | |
1446 | void | |
fba45db2 | 1447 | cfront_mangle_name (struct type *type, int i, int j) |
c906108c | 1448 | { |
c5aa993b JM |
1449 | struct fn_field *f; |
1450 | char *mangled_name = gdb_mangle_name (type, i, j); | |
1451 | ||
1452 | f = TYPE_FN_FIELDLIST1 (type, i); /* moved from below */ | |
1453 | ||
7b83ea04 | 1454 | /* kludge to support cfront methods - gdb expects to find "F" for |
c5aa993b JM |
1455 | ARM_mangled names, so when we mangle, we have to add it here */ |
1456 | if (ARM_DEMANGLING) | |
1457 | { | |
1458 | int k; | |
1459 | char *arm_mangled_name; | |
1460 | struct fn_field *method = &f[j]; | |
1461 | char *field_name = TYPE_FN_FIELDLIST_NAME (type, i); | |
1462 | char *physname = TYPE_FN_FIELD_PHYSNAME (f, j); | |
1463 | char *newname = type_name_no_tag (type); | |
1464 | ||
1465 | struct type *ftype = TYPE_FN_FIELD_TYPE (f, j); | |
1466 | int nargs = TYPE_NFIELDS (ftype); /* number of args */ | |
1467 | struct extra extras, *pextras = &extras; | |
1468 | INIT_EXTRA | |
c906108c SS |
1469 | |
1470 | if (TYPE_FN_FIELD_STATIC_P (f, j)) /* j for sublist within this list */ | |
c5aa993b JM |
1471 | ADD_EXTRA ('S') |
1472 | ADD_EXTRA ('F') | |
c906108c | 1473 | /* add args here! */ |
c5aa993b JM |
1474 | if (nargs <= 1) /* no args besides this */ |
1475 | ADD_EXTRA ('v') | |
1476 | else | |
1477 | { | |
1478 | for (k = 1; k < nargs; k++) | |
1479 | { | |
1480 | struct type *t; | |
1481 | t = TYPE_FIELD_TYPE (ftype, k); | |
1482 | add_mangled_type (pextras, t); | |
1483 | } | |
1484 | } | |
1485 | ADD_EXTRA ('\0') | |
1486 | printf ("add_mangled_type: %s\n", extras.str); /* FIXME */ | |
3c37485b | 1487 | xasprintf (&arm_mangled_name, "%s%s", mangled_name, extras.str); |
b8c9b27d | 1488 | xfree (mangled_name); |
c5aa993b JM |
1489 | mangled_name = arm_mangled_name; |
1490 | } | |
c906108c | 1491 | } |
c5aa993b | 1492 | #endif /* 0 */ |
c906108c SS |
1493 | |
1494 | #undef ADD_EXTRA | |
1495 | /* End of new code added to support parsing of Cfront stabs strings */ | |
1496 | ||
c91ecb25 ND |
1497 | /* Parse a type expression in the string [P..P+LENGTH). If an error occurs, |
1498 | silently return builtin_type_void. */ | |
1499 | ||
1500 | struct type * | |
1501 | safe_parse_type (char *p, int length) | |
1502 | { | |
1503 | struct ui_file *saved_gdb_stderr; | |
1504 | struct type *type; | |
1505 | ||
1506 | /* Suppress error messages. */ | |
1507 | saved_gdb_stderr = gdb_stderr; | |
1508 | gdb_stderr = ui_file_new (); | |
1509 | ||
1510 | /* Call parse_and_eval_type() without fear of longjmp()s. */ | |
1511 | if (!gdb_parse_and_eval_type (p, length, &type)) | |
1512 | type = builtin_type_void; | |
1513 | ||
1514 | /* Stop suppressing error messages. */ | |
1515 | ui_file_delete (gdb_stderr); | |
1516 | gdb_stderr = saved_gdb_stderr; | |
1517 | ||
1518 | return type; | |
1519 | } | |
1520 | ||
c906108c SS |
1521 | /* Ugly hack to convert method stubs into method types. |
1522 | ||
1523 | He ain't kiddin'. This demangles the name of the method into a string | |
1524 | including argument types, parses out each argument type, generates | |
1525 | a string casting a zero to that type, evaluates the string, and stuffs | |
1526 | the resulting type into an argtype vector!!! Then it knows the type | |
1527 | of the whole function (including argument types for overloading), | |
1528 | which info used to be in the stab's but was removed to hack back | |
1529 | the space required for them. */ | |
1530 | ||
1531 | void | |
fba45db2 | 1532 | check_stub_method (struct type *type, int method_id, int signature_id) |
c906108c SS |
1533 | { |
1534 | struct fn_field *f; | |
1535 | char *mangled_name = gdb_mangle_name (type, method_id, signature_id); | |
1536 | char *demangled_name = cplus_demangle (mangled_name, | |
1537 | DMGL_PARAMS | DMGL_ANSI); | |
1538 | char *argtypetext, *p; | |
1539 | int depth = 0, argcount = 1; | |
1540 | struct type **argtypes; | |
1541 | struct type *mtype; | |
1542 | ||
1543 | /* Make sure we got back a function string that we can use. */ | |
1544 | if (demangled_name) | |
1545 | p = strchr (demangled_name, '('); | |
502dcf4e AC |
1546 | else |
1547 | p = NULL; | |
c906108c SS |
1548 | |
1549 | if (demangled_name == NULL || p == NULL) | |
1550 | error ("Internal: Cannot demangle mangled name `%s'.", mangled_name); | |
1551 | ||
1552 | /* Now, read in the parameters that define this type. */ | |
1553 | p += 1; | |
1554 | argtypetext = p; | |
1555 | while (*p) | |
1556 | { | |
070ad9f0 | 1557 | if (*p == '(' || *p == '<') |
c906108c SS |
1558 | { |
1559 | depth += 1; | |
1560 | } | |
070ad9f0 | 1561 | else if (*p == ')' || *p == '>') |
c906108c SS |
1562 | { |
1563 | depth -= 1; | |
1564 | } | |
1565 | else if (*p == ',' && depth == 0) | |
1566 | { | |
1567 | argcount += 1; | |
1568 | } | |
1569 | ||
1570 | p += 1; | |
1571 | } | |
1572 | ||
1573 | /* We need two more slots: one for the THIS pointer, and one for the | |
1574 | NULL [...] or void [end of arglist]. */ | |
1575 | ||
1576 | argtypes = (struct type **) | |
1577 | TYPE_ALLOC (type, (argcount + 2) * sizeof (struct type *)); | |
1578 | p = argtypetext; | |
1579 | /* FIXME: This is wrong for static member functions. */ | |
1580 | argtypes[0] = lookup_pointer_type (type); | |
1581 | argcount = 1; | |
1582 | ||
c5aa993b | 1583 | if (*p != ')') /* () means no args, skip while */ |
c906108c SS |
1584 | { |
1585 | depth = 0; | |
1586 | while (*p) | |
1587 | { | |
1588 | if (depth <= 0 && (*p == ',' || *p == ')')) | |
1589 | { | |
1590 | /* Avoid parsing of ellipsis, they will be handled below. */ | |
1591 | if (strncmp (argtypetext, "...", p - argtypetext) != 0) | |
1592 | { | |
1593 | argtypes[argcount] = | |
c91ecb25 | 1594 | safe_parse_type (argtypetext, p - argtypetext); |
c906108c SS |
1595 | argcount += 1; |
1596 | } | |
1597 | argtypetext = p + 1; | |
1598 | } | |
1599 | ||
070ad9f0 | 1600 | if (*p == '(' || *p == '<') |
c906108c SS |
1601 | { |
1602 | depth += 1; | |
1603 | } | |
070ad9f0 | 1604 | else if (*p == ')' || *p == '>') |
c906108c SS |
1605 | { |
1606 | depth -= 1; | |
1607 | } | |
1608 | ||
1609 | p += 1; | |
1610 | } | |
1611 | } | |
1612 | ||
c5aa993b | 1613 | if (p[-2] != '.') /* Not '...' */ |
c906108c SS |
1614 | { |
1615 | argtypes[argcount] = builtin_type_void; /* List terminator */ | |
1616 | } | |
1617 | else | |
1618 | { | |
c5aa993b | 1619 | argtypes[argcount] = NULL; /* Ellist terminator */ |
c906108c SS |
1620 | } |
1621 | ||
b8c9b27d | 1622 | xfree (demangled_name); |
c906108c | 1623 | |
c5aa993b | 1624 | f = TYPE_FN_FIELDLIST1 (type, method_id); |
c906108c SS |
1625 | |
1626 | TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; | |
1627 | ||
1628 | /* Now update the old "stub" type into a real type. */ | |
1629 | mtype = TYPE_FN_FIELD_TYPE (f, signature_id); | |
1630 | TYPE_DOMAIN_TYPE (mtype) = type; | |
1631 | TYPE_ARG_TYPES (mtype) = argtypes; | |
1632 | TYPE_FLAGS (mtype) &= ~TYPE_FLAG_STUB; | |
1633 | TYPE_FN_FIELD_STUB (f, signature_id) = 0; | |
1634 | } | |
1635 | ||
1636 | const struct cplus_struct_type cplus_struct_default; | |
1637 | ||
1638 | void | |
fba45db2 | 1639 | allocate_cplus_struct_type (struct type *type) |
c906108c SS |
1640 | { |
1641 | if (!HAVE_CPLUS_STRUCT (type)) | |
1642 | { | |
1643 | TYPE_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) | |
1644 | TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); | |
c5aa993b | 1645 | *(TYPE_CPLUS_SPECIFIC (type)) = cplus_struct_default; |
c906108c SS |
1646 | } |
1647 | } | |
1648 | ||
1649 | /* Helper function to initialize the standard scalar types. | |
1650 | ||
1651 | If NAME is non-NULL and OBJFILE is non-NULL, then we make a copy | |
1652 | of the string pointed to by name in the type_obstack for that objfile, | |
1653 | and initialize the type name to that copy. There are places (mipsread.c | |
1654 | in particular, where init_type is called with a NULL value for NAME). */ | |
1655 | ||
1656 | struct type * | |
fba45db2 KB |
1657 | init_type (enum type_code code, int length, int flags, char *name, |
1658 | struct objfile *objfile) | |
c906108c SS |
1659 | { |
1660 | register struct type *type; | |
1661 | ||
1662 | type = alloc_type (objfile); | |
1663 | TYPE_CODE (type) = code; | |
1664 | TYPE_LENGTH (type) = length; | |
1665 | TYPE_FLAGS (type) |= flags; | |
1666 | if ((name != NULL) && (objfile != NULL)) | |
1667 | { | |
1668 | TYPE_NAME (type) = | |
c5aa993b | 1669 | obsavestring (name, strlen (name), &objfile->type_obstack); |
c906108c SS |
1670 | } |
1671 | else | |
1672 | { | |
1673 | TYPE_NAME (type) = name; | |
1674 | } | |
1675 | ||
1676 | /* C++ fancies. */ | |
1677 | ||
1678 | if (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION) | |
1679 | { | |
1680 | INIT_CPLUS_SPECIFIC (type); | |
1681 | } | |
1682 | return (type); | |
1683 | } | |
1684 | ||
1685 | /* Look up a fundamental type for the specified objfile. | |
1686 | May need to construct such a type if this is the first use. | |
1687 | ||
1688 | Some object file formats (ELF, COFF, etc) do not define fundamental | |
1689 | types such as "int" or "double". Others (stabs for example), do | |
1690 | define fundamental types. | |
1691 | ||
1692 | For the formats which don't provide fundamental types, gdb can create | |
1693 | such types, using defaults reasonable for the current language and | |
1694 | the current target machine. | |
1695 | ||
1696 | NOTE: This routine is obsolescent. Each debugging format reader | |
1697 | should manage it's own fundamental types, either creating them from | |
1698 | suitable defaults or reading them from the debugging information, | |
1699 | whichever is appropriate. The DWARF reader has already been | |
1700 | fixed to do this. Once the other readers are fixed, this routine | |
1701 | will go away. Also note that fundamental types should be managed | |
1702 | on a compilation unit basis in a multi-language environment, not | |
1703 | on a linkage unit basis as is done here. */ | |
1704 | ||
1705 | ||
1706 | struct type * | |
fba45db2 | 1707 | lookup_fundamental_type (struct objfile *objfile, int typeid) |
c906108c SS |
1708 | { |
1709 | register struct type **typep; | |
1710 | register int nbytes; | |
1711 | ||
1712 | if (typeid < 0 || typeid >= FT_NUM_MEMBERS) | |
1713 | { | |
1714 | error ("internal error - invalid fundamental type id %d", typeid); | |
1715 | } | |
1716 | ||
1717 | /* If this is the first time we need a fundamental type for this objfile | |
1718 | then we need to initialize the vector of type pointers. */ | |
c5aa993b JM |
1719 | |
1720 | if (objfile->fundamental_types == NULL) | |
c906108c SS |
1721 | { |
1722 | nbytes = FT_NUM_MEMBERS * sizeof (struct type *); | |
c5aa993b JM |
1723 | objfile->fundamental_types = (struct type **) |
1724 | obstack_alloc (&objfile->type_obstack, nbytes); | |
1725 | memset ((char *) objfile->fundamental_types, 0, nbytes); | |
c906108c SS |
1726 | OBJSTAT (objfile, n_types += FT_NUM_MEMBERS); |
1727 | } | |
1728 | ||
1729 | /* Look for this particular type in the fundamental type vector. If one is | |
1730 | not found, create and install one appropriate for the current language. */ | |
1731 | ||
c5aa993b | 1732 | typep = objfile->fundamental_types + typeid; |
c906108c SS |
1733 | if (*typep == NULL) |
1734 | { | |
1735 | *typep = create_fundamental_type (objfile, typeid); | |
1736 | } | |
1737 | ||
1738 | return (*typep); | |
1739 | } | |
1740 | ||
1741 | int | |
fba45db2 | 1742 | can_dereference (struct type *t) |
c906108c SS |
1743 | { |
1744 | /* FIXME: Should we return true for references as well as pointers? */ | |
1745 | CHECK_TYPEDEF (t); | |
1746 | return | |
1747 | (t != NULL | |
1748 | && TYPE_CODE (t) == TYPE_CODE_PTR | |
1749 | && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); | |
1750 | } | |
1751 | ||
adf40b2e | 1752 | int |
fba45db2 | 1753 | is_integral_type (struct type *t) |
adf40b2e JM |
1754 | { |
1755 | CHECK_TYPEDEF (t); | |
1756 | return | |
1757 | ((t != NULL) | |
d4f3574e SS |
1758 | && ((TYPE_CODE (t) == TYPE_CODE_INT) |
1759 | || (TYPE_CODE (t) == TYPE_CODE_ENUM) | |
1760 | || (TYPE_CODE (t) == TYPE_CODE_CHAR) | |
1761 | || (TYPE_CODE (t) == TYPE_CODE_RANGE) | |
1762 | || (TYPE_CODE (t) == TYPE_CODE_BOOL))); | |
adf40b2e JM |
1763 | } |
1764 | ||
c906108c SS |
1765 | /* Chill varying string and arrays are represented as follows: |
1766 | ||
1767 | struct { int __var_length; ELEMENT_TYPE[MAX_SIZE] __var_data}; | |
1768 | ||
1769 | Return true if TYPE is such a Chill varying type. */ | |
1770 | ||
1771 | int | |
fba45db2 | 1772 | chill_varying_type (struct type *type) |
c906108c SS |
1773 | { |
1774 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT | |
1775 | || TYPE_NFIELDS (type) != 2 | |
1776 | || strcmp (TYPE_FIELD_NAME (type, 0), "__var_length") != 0) | |
1777 | return 0; | |
1778 | return 1; | |
1779 | } | |
1780 | ||
7b83ea04 | 1781 | /* Check whether BASE is an ancestor or base class or DCLASS |
c906108c SS |
1782 | Return 1 if so, and 0 if not. |
1783 | Note: callers may want to check for identity of the types before | |
1784 | calling this function -- identical types are considered to satisfy | |
1785 | the ancestor relationship even if they're identical */ | |
1786 | ||
1787 | int | |
fba45db2 | 1788 | is_ancestor (struct type *base, struct type *dclass) |
c906108c SS |
1789 | { |
1790 | int i; | |
c5aa993b | 1791 | |
c906108c SS |
1792 | CHECK_TYPEDEF (base); |
1793 | CHECK_TYPEDEF (dclass); | |
1794 | ||
1795 | if (base == dclass) | |
1796 | return 1; | |
6b1ba9a0 ND |
1797 | if (TYPE_NAME (base) && TYPE_NAME (dclass) && |
1798 | !strcmp (TYPE_NAME (base), TYPE_NAME (dclass))) | |
1799 | return 1; | |
c906108c SS |
1800 | |
1801 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1802 | if (is_ancestor (base, TYPE_BASECLASS (dclass, i))) | |
1803 | return 1; | |
1804 | ||
1805 | return 0; | |
1806 | } | |
1807 | ||
1808 | ||
1809 | ||
1810 | /* See whether DCLASS has a virtual table. This routine is aimed at | |
1811 | the HP/Taligent ANSI C++ runtime model, and may not work with other | |
1812 | runtime models. Return 1 => Yes, 0 => No. */ | |
1813 | ||
1814 | int | |
fba45db2 | 1815 | has_vtable (struct type *dclass) |
c906108c SS |
1816 | { |
1817 | /* In the HP ANSI C++ runtime model, a class has a vtable only if it | |
1818 | has virtual functions or virtual bases. */ | |
1819 | ||
1820 | register int i; | |
1821 | ||
c5aa993b | 1822 | if (TYPE_CODE (dclass) != TYPE_CODE_CLASS) |
c906108c | 1823 | return 0; |
c5aa993b | 1824 | |
c906108c | 1825 | /* First check for the presence of virtual bases */ |
c5aa993b JM |
1826 | if (TYPE_FIELD_VIRTUAL_BITS (dclass)) |
1827 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1828 | if (B_TST (TYPE_FIELD_VIRTUAL_BITS (dclass), i)) | |
1829 | return 1; | |
1830 | ||
c906108c | 1831 | /* Next check for virtual functions */ |
c5aa993b JM |
1832 | if (TYPE_FN_FIELDLISTS (dclass)) |
1833 | for (i = 0; i < TYPE_NFN_FIELDS (dclass); i++) | |
1834 | if (TYPE_FN_FIELD_VIRTUAL_P (TYPE_FN_FIELDLIST1 (dclass, i), 0)) | |
c906108c | 1835 | return 1; |
c5aa993b JM |
1836 | |
1837 | /* Recurse on non-virtual bases to see if any of them needs a vtable */ | |
1838 | if (TYPE_FIELD_VIRTUAL_BITS (dclass)) | |
1839 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1840 | if ((!B_TST (TYPE_FIELD_VIRTUAL_BITS (dclass), i)) && | |
1841 | (has_vtable (TYPE_FIELD_TYPE (dclass, i)))) | |
1842 | return 1; | |
1843 | ||
1844 | /* Well, maybe we don't need a virtual table */ | |
c906108c SS |
1845 | return 0; |
1846 | } | |
1847 | ||
1848 | /* Return a pointer to the "primary base class" of DCLASS. | |
c5aa993b | 1849 | |
c906108c SS |
1850 | A NULL return indicates that DCLASS has no primary base, or that it |
1851 | couldn't be found (insufficient information). | |
c5aa993b | 1852 | |
c906108c SS |
1853 | This routine is aimed at the HP/Taligent ANSI C++ runtime model, |
1854 | and may not work with other runtime models. */ | |
1855 | ||
1856 | struct type * | |
fba45db2 | 1857 | primary_base_class (struct type *dclass) |
c906108c SS |
1858 | { |
1859 | /* In HP ANSI C++'s runtime model, a "primary base class" of a class | |
1860 | is the first directly inherited, non-virtual base class that | |
1861 | requires a virtual table */ | |
1862 | ||
1863 | register int i; | |
1864 | ||
c5aa993b | 1865 | if (TYPE_CODE (dclass) != TYPE_CODE_CLASS) |
c906108c SS |
1866 | return NULL; |
1867 | ||
c5aa993b JM |
1868 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) |
1869 | if (!TYPE_FIELD_VIRTUAL (dclass, i) && | |
1870 | has_vtable (TYPE_FIELD_TYPE (dclass, i))) | |
1871 | return TYPE_FIELD_TYPE (dclass, i); | |
c906108c SS |
1872 | |
1873 | return NULL; | |
1874 | } | |
1875 | ||
1876 | /* Global manipulated by virtual_base_list[_aux]() */ | |
1877 | ||
c5aa993b | 1878 | static struct vbase *current_vbase_list = NULL; |
c906108c SS |
1879 | |
1880 | /* Return a pointer to a null-terminated list of struct vbase | |
1881 | items. The vbasetype pointer of each item in the list points to the | |
1882 | type information for a virtual base of the argument DCLASS. | |
c5aa993b | 1883 | |
7b83ea04 | 1884 | Helper function for virtual_base_list(). |
c906108c SS |
1885 | Note: the list goes backward, right-to-left. virtual_base_list() |
1886 | copies the items out in reverse order. */ | |
1887 | ||
7a292a7a | 1888 | static void |
fba45db2 | 1889 | virtual_base_list_aux (struct type *dclass) |
c906108c | 1890 | { |
c5aa993b | 1891 | struct vbase *tmp_vbase; |
c906108c SS |
1892 | register int i; |
1893 | ||
c5aa993b | 1894 | if (TYPE_CODE (dclass) != TYPE_CODE_CLASS) |
7a292a7a | 1895 | return; |
c906108c SS |
1896 | |
1897 | for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) | |
1898 | { | |
1899 | /* Recurse on this ancestor, first */ | |
c5aa993b | 1900 | virtual_base_list_aux (TYPE_FIELD_TYPE (dclass, i)); |
c906108c SS |
1901 | |
1902 | /* If this current base is itself virtual, add it to the list */ | |
c5aa993b JM |
1903 | if (BASETYPE_VIA_VIRTUAL (dclass, i)) |
1904 | { | |
1905 | struct type *basetype = TYPE_FIELD_TYPE (dclass, i); | |
1906 | ||
1907 | /* Check if base already recorded */ | |
1908 | tmp_vbase = current_vbase_list; | |
1909 | while (tmp_vbase) | |
1910 | { | |
1911 | if (tmp_vbase->vbasetype == basetype) | |
1912 | break; /* found it */ | |
1913 | tmp_vbase = tmp_vbase->next; | |
1914 | } | |
1915 | ||
1916 | if (!tmp_vbase) /* normal exit from loop */ | |
1917 | { | |
1918 | /* Allocate new item for this virtual base */ | |
1919 | tmp_vbase = (struct vbase *) xmalloc (sizeof (struct vbase)); | |
1920 | ||
1921 | /* Stick it on at the end of the list */ | |
1922 | tmp_vbase->vbasetype = basetype; | |
1923 | tmp_vbase->next = current_vbase_list; | |
1924 | current_vbase_list = tmp_vbase; | |
1925 | } | |
1926 | } /* if virtual */ | |
1927 | } /* for loop over bases */ | |
c906108c SS |
1928 | } |
1929 | ||
1930 | ||
1931 | /* Compute the list of virtual bases in the right order. Virtual | |
1932 | bases are laid out in the object's memory area in order of their | |
1933 | occurrence in a depth-first, left-to-right search through the | |
1934 | ancestors. | |
c5aa993b | 1935 | |
c906108c SS |
1936 | Argument DCLASS is the type whose virtual bases are required. |
1937 | Return value is the address of a null-terminated array of pointers | |
1938 | to struct type items. | |
c5aa993b | 1939 | |
c906108c SS |
1940 | This routine is aimed at the HP/Taligent ANSI C++ runtime model, |
1941 | and may not work with other runtime models. | |
c5aa993b | 1942 | |
c906108c SS |
1943 | This routine merely hands off the argument to virtual_base_list_aux() |
1944 | and then copies the result into an array to save space. */ | |
1945 | ||
1946 | struct type ** | |
fba45db2 | 1947 | virtual_base_list (struct type *dclass) |
c906108c | 1948 | { |
c5aa993b JM |
1949 | register struct vbase *tmp_vbase; |
1950 | register struct vbase *tmp_vbase_2; | |
c906108c SS |
1951 | register int i; |
1952 | int count; | |
c5aa993b | 1953 | struct type **vbase_array; |
c906108c SS |
1954 | |
1955 | current_vbase_list = NULL; | |
c5aa993b | 1956 | virtual_base_list_aux (dclass); |
c906108c | 1957 | |
c5aa993b | 1958 | for (i = 0, tmp_vbase = current_vbase_list; tmp_vbase != NULL; i++, tmp_vbase = tmp_vbase->next) |
c906108c SS |
1959 | /* no body */ ; |
1960 | ||
1961 | count = i; | |
1962 | ||
c5aa993b | 1963 | vbase_array = (struct type **) xmalloc ((count + 1) * sizeof (struct type *)); |
c906108c | 1964 | |
c5aa993b | 1965 | for (i = count - 1, tmp_vbase = current_vbase_list; i >= 0; i--, tmp_vbase = tmp_vbase->next) |
c906108c SS |
1966 | vbase_array[i] = tmp_vbase->vbasetype; |
1967 | ||
1968 | /* Get rid of constructed chain */ | |
1969 | tmp_vbase_2 = tmp_vbase = current_vbase_list; | |
1970 | while (tmp_vbase) | |
1971 | { | |
1972 | tmp_vbase = tmp_vbase->next; | |
b8c9b27d | 1973 | xfree (tmp_vbase_2); |
c906108c SS |
1974 | tmp_vbase_2 = tmp_vbase; |
1975 | } | |
c5aa993b | 1976 | |
c906108c SS |
1977 | vbase_array[count] = NULL; |
1978 | return vbase_array; | |
1979 | } | |
1980 | ||
1981 | /* Return the length of the virtual base list of the type DCLASS. */ | |
1982 | ||
1983 | int | |
fba45db2 | 1984 | virtual_base_list_length (struct type *dclass) |
c906108c SS |
1985 | { |
1986 | register int i; | |
c5aa993b JM |
1987 | register struct vbase *tmp_vbase; |
1988 | ||
c906108c | 1989 | current_vbase_list = NULL; |
c5aa993b | 1990 | virtual_base_list_aux (dclass); |
c906108c | 1991 | |
c5aa993b | 1992 | for (i = 0, tmp_vbase = current_vbase_list; tmp_vbase != NULL; i++, tmp_vbase = tmp_vbase->next) |
c906108c SS |
1993 | /* no body */ ; |
1994 | return i; | |
1995 | } | |
1996 | ||
1997 | /* Return the number of elements of the virtual base list of the type | |
1998 | DCLASS, ignoring those appearing in the primary base (and its | |
1999 | primary base, recursively). */ | |
2000 | ||
2001 | int | |
fba45db2 | 2002 | virtual_base_list_length_skip_primaries (struct type *dclass) |
c906108c SS |
2003 | { |
2004 | register int i; | |
c5aa993b JM |
2005 | register struct vbase *tmp_vbase; |
2006 | struct type *primary; | |
c906108c SS |
2007 | |
2008 | primary = TYPE_RUNTIME_PTR (dclass) ? TYPE_PRIMARY_BASE (dclass) : NULL; | |
2009 | ||
2010 | if (!primary) | |
2011 | return virtual_base_list_length (dclass); | |
2012 | ||
2013 | current_vbase_list = NULL; | |
c5aa993b | 2014 | virtual_base_list_aux (dclass); |
c906108c | 2015 | |
c5aa993b | 2016 | for (i = 0, tmp_vbase = current_vbase_list; tmp_vbase != NULL; tmp_vbase = tmp_vbase->next) |
c906108c SS |
2017 | { |
2018 | if (virtual_base_index (tmp_vbase->vbasetype, primary) >= 0) | |
c5aa993b | 2019 | continue; |
c906108c SS |
2020 | i++; |
2021 | } | |
2022 | return i; | |
2023 | } | |
2024 | ||
2025 | ||
2026 | /* Return the index (position) of type BASE, which is a virtual base | |
2027 | class of DCLASS, in the latter's virtual base list. A return of -1 | |
2028 | indicates "not found" or a problem. */ | |
2029 | ||
2030 | int | |
fba45db2 | 2031 | virtual_base_index (struct type *base, struct type *dclass) |
c906108c | 2032 | { |
c5aa993b | 2033 | register struct type *vbase; |
c906108c SS |
2034 | register int i; |
2035 | ||
c5aa993b JM |
2036 | if ((TYPE_CODE (dclass) != TYPE_CODE_CLASS) || |
2037 | (TYPE_CODE (base) != TYPE_CODE_CLASS)) | |
c906108c SS |
2038 | return -1; |
2039 | ||
2040 | i = 0; | |
015a42b4 | 2041 | vbase = virtual_base_list (dclass)[0]; |
c906108c SS |
2042 | while (vbase) |
2043 | { | |
2044 | if (vbase == base) | |
c5aa993b | 2045 | break; |
015a42b4 | 2046 | vbase = virtual_base_list (dclass)[++i]; |
c906108c SS |
2047 | } |
2048 | ||
2049 | return vbase ? i : -1; | |
2050 | } | |
2051 | ||
2052 | ||
2053 | ||
2054 | /* Return the index (position) of type BASE, which is a virtual base | |
2055 | class of DCLASS, in the latter's virtual base list. Skip over all | |
2056 | bases that may appear in the virtual base list of the primary base | |
2057 | class of DCLASS (recursively). A return of -1 indicates "not | |
2058 | found" or a problem. */ | |
2059 | ||
2060 | int | |
fba45db2 | 2061 | virtual_base_index_skip_primaries (struct type *base, struct type *dclass) |
c906108c | 2062 | { |
c5aa993b | 2063 | register struct type *vbase; |
c906108c | 2064 | register int i, j; |
c5aa993b | 2065 | struct type *primary; |
c906108c | 2066 | |
c5aa993b JM |
2067 | if ((TYPE_CODE (dclass) != TYPE_CODE_CLASS) || |
2068 | (TYPE_CODE (base) != TYPE_CODE_CLASS)) | |
c906108c SS |
2069 | return -1; |
2070 | ||
c5aa993b | 2071 | primary = TYPE_RUNTIME_PTR (dclass) ? TYPE_PRIMARY_BASE (dclass) : NULL; |
c906108c SS |
2072 | |
2073 | j = -1; | |
2074 | i = 0; | |
015a42b4 | 2075 | vbase = virtual_base_list (dclass)[0]; |
c906108c SS |
2076 | while (vbase) |
2077 | { | |
c5aa993b JM |
2078 | if (!primary || (virtual_base_index_skip_primaries (vbase, primary) < 0)) |
2079 | j++; | |
c906108c | 2080 | if (vbase == base) |
c5aa993b | 2081 | break; |
015a42b4 | 2082 | vbase = virtual_base_list (dclass)[++i]; |
c906108c SS |
2083 | } |
2084 | ||
2085 | return vbase ? j : -1; | |
2086 | } | |
2087 | ||
2088 | /* Return position of a derived class DCLASS in the list of | |
2089 | * primary bases starting with the remotest ancestor. | |
2090 | * Position returned is 0-based. */ | |
2091 | ||
2092 | int | |
fba45db2 | 2093 | class_index_in_primary_list (struct type *dclass) |
c906108c | 2094 | { |
c5aa993b | 2095 | struct type *pbc; /* primary base class */ |
c906108c | 2096 | |
c5aa993b | 2097 | /* Simply recurse on primary base */ |
c906108c SS |
2098 | pbc = TYPE_PRIMARY_BASE (dclass); |
2099 | if (pbc) | |
2100 | return 1 + class_index_in_primary_list (pbc); | |
2101 | else | |
2102 | return 0; | |
2103 | } | |
2104 | ||
2105 | /* Return a count of the number of virtual functions a type has. | |
2106 | * This includes all the virtual functions it inherits from its | |
2107 | * base classes too. | |
2108 | */ | |
2109 | ||
2110 | /* pai: FIXME This doesn't do the right thing: count redefined virtual | |
2111 | * functions only once (latest redefinition) | |
2112 | */ | |
2113 | ||
2114 | int | |
fba45db2 | 2115 | count_virtual_fns (struct type *dclass) |
c906108c | 2116 | { |
c5aa993b | 2117 | int fn, oi; /* function and overloaded instance indices */ |
c5aa993b JM |
2118 | int vfuncs; /* count to return */ |
2119 | ||
2120 | /* recurse on bases that can share virtual table */ | |
2121 | struct type *pbc = primary_base_class (dclass); | |
c906108c SS |
2122 | if (pbc) |
2123 | vfuncs = count_virtual_fns (pbc); | |
7f7e9482 AC |
2124 | else |
2125 | vfuncs = 0; | |
c5aa993b | 2126 | |
c906108c SS |
2127 | for (fn = 0; fn < TYPE_NFN_FIELDS (dclass); fn++) |
2128 | for (oi = 0; oi < TYPE_FN_FIELDLIST_LENGTH (dclass, fn); oi++) | |
2129 | if (TYPE_FN_FIELD_VIRTUAL_P (TYPE_FN_FIELDLIST1 (dclass, fn), oi)) | |
c5aa993b | 2130 | vfuncs++; |
c906108c SS |
2131 | |
2132 | return vfuncs; | |
2133 | } | |
c906108c SS |
2134 | \f |
2135 | ||
c5aa993b | 2136 | |
c906108c SS |
2137 | /* Functions for overload resolution begin here */ |
2138 | ||
2139 | /* Compare two badness vectors A and B and return the result. | |
2140 | * 0 => A and B are identical | |
2141 | * 1 => A and B are incomparable | |
2142 | * 2 => A is better than B | |
2143 | * 3 => A is worse than B */ | |
2144 | ||
2145 | int | |
fba45db2 | 2146 | compare_badness (struct badness_vector *a, struct badness_vector *b) |
c906108c SS |
2147 | { |
2148 | int i; | |
2149 | int tmp; | |
c5aa993b JM |
2150 | short found_pos = 0; /* any positives in c? */ |
2151 | short found_neg = 0; /* any negatives in c? */ | |
2152 | ||
2153 | /* differing lengths => incomparable */ | |
c906108c SS |
2154 | if (a->length != b->length) |
2155 | return 1; | |
2156 | ||
c5aa993b JM |
2157 | /* Subtract b from a */ |
2158 | for (i = 0; i < a->length; i++) | |
c906108c SS |
2159 | { |
2160 | tmp = a->rank[i] - b->rank[i]; | |
2161 | if (tmp > 0) | |
c5aa993b | 2162 | found_pos = 1; |
c906108c | 2163 | else if (tmp < 0) |
c5aa993b | 2164 | found_neg = 1; |
c906108c SS |
2165 | } |
2166 | ||
2167 | if (found_pos) | |
2168 | { | |
2169 | if (found_neg) | |
c5aa993b | 2170 | return 1; /* incomparable */ |
c906108c | 2171 | else |
c5aa993b | 2172 | return 3; /* A > B */ |
c906108c | 2173 | } |
c5aa993b JM |
2174 | else |
2175 | /* no positives */ | |
c906108c SS |
2176 | { |
2177 | if (found_neg) | |
c5aa993b | 2178 | return 2; /* A < B */ |
c906108c | 2179 | else |
c5aa993b | 2180 | return 0; /* A == B */ |
c906108c SS |
2181 | } |
2182 | } | |
2183 | ||
2184 | /* Rank a function by comparing its parameter types (PARMS, length NPARMS), | |
2185 | * to the types of an argument list (ARGS, length NARGS). | |
2186 | * Return a pointer to a badness vector. This has NARGS + 1 entries. */ | |
2187 | ||
2188 | struct badness_vector * | |
fba45db2 | 2189 | rank_function (struct type **parms, int nparms, struct type **args, int nargs) |
c906108c SS |
2190 | { |
2191 | int i; | |
c5aa993b | 2192 | struct badness_vector *bv; |
c906108c SS |
2193 | int min_len = nparms < nargs ? nparms : nargs; |
2194 | ||
2195 | bv = xmalloc (sizeof (struct badness_vector)); | |
c5aa993b | 2196 | bv->length = nargs + 1; /* add 1 for the length-match rank */ |
c906108c SS |
2197 | bv->rank = xmalloc ((nargs + 1) * sizeof (int)); |
2198 | ||
2199 | /* First compare the lengths of the supplied lists. | |
2200 | * If there is a mismatch, set it to a high value. */ | |
c5aa993b | 2201 | |
c906108c SS |
2202 | /* pai/1997-06-03 FIXME: when we have debug info about default |
2203 | * arguments and ellipsis parameter lists, we should consider those | |
2204 | * and rank the length-match more finely. */ | |
2205 | ||
2206 | LENGTH_MATCH (bv) = (nargs != nparms) ? LENGTH_MISMATCH_BADNESS : 0; | |
2207 | ||
2208 | /* Now rank all the parameters of the candidate function */ | |
74cc24b0 DB |
2209 | for (i = 1; i <= min_len; i++) |
2210 | bv->rank[i] = rank_one_type (parms[i-1], args[i-1]); | |
c906108c | 2211 | |
c5aa993b JM |
2212 | /* If more arguments than parameters, add dummy entries */ |
2213 | for (i = min_len + 1; i <= nargs; i++) | |
c906108c SS |
2214 | bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
2215 | ||
2216 | return bv; | |
2217 | } | |
2218 | ||
2219 | /* Compare one type (PARM) for compatibility with another (ARG). | |
2220 | * PARM is intended to be the parameter type of a function; and | |
2221 | * ARG is the supplied argument's type. This function tests if | |
2222 | * the latter can be converted to the former. | |
2223 | * | |
2224 | * Return 0 if they are identical types; | |
2225 | * Otherwise, return an integer which corresponds to how compatible | |
2226 | * PARM is to ARG. The higher the return value, the worse the match. | |
2227 | * Generally the "bad" conversions are all uniformly assigned a 100 */ | |
2228 | ||
2229 | int | |
fba45db2 | 2230 | rank_one_type (struct type *parm, struct type *arg) |
c906108c SS |
2231 | { |
2232 | /* Identical type pointers */ | |
2233 | /* However, this still doesn't catch all cases of same type for arg | |
2234 | * and param. The reason is that builtin types are different from | |
2235 | * the same ones constructed from the object. */ | |
2236 | if (parm == arg) | |
2237 | return 0; | |
2238 | ||
2239 | /* Resolve typedefs */ | |
2240 | if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) | |
2241 | parm = check_typedef (parm); | |
2242 | if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) | |
2243 | arg = check_typedef (arg); | |
2244 | ||
070ad9f0 DB |
2245 | /* |
2246 | Well, damnit, if the names are exactly the same, | |
2247 | i'll say they are exactly the same. This happens when we generate | |
2248 | method stubs. The types won't point to the same address, but they | |
2249 | really are the same. | |
2250 | */ | |
2251 | ||
6b1ba9a0 ND |
2252 | if (TYPE_NAME (parm) && TYPE_NAME (arg) && |
2253 | !strcmp (TYPE_NAME (parm), TYPE_NAME (arg))) | |
070ad9f0 DB |
2254 | return 0; |
2255 | ||
c906108c SS |
2256 | /* Check if identical after resolving typedefs */ |
2257 | if (parm == arg) | |
2258 | return 0; | |
2259 | ||
db577aea AC |
2260 | /* See through references, since we can almost make non-references |
2261 | references. */ | |
2262 | if (TYPE_CODE (arg) == TYPE_CODE_REF) | |
6b1ba9a0 | 2263 | return (rank_one_type (parm, TYPE_TARGET_TYPE (arg)) |
db577aea AC |
2264 | + REFERENCE_CONVERSION_BADNESS); |
2265 | if (TYPE_CODE (parm) == TYPE_CODE_REF) | |
6b1ba9a0 | 2266 | return (rank_one_type (TYPE_TARGET_TYPE (parm), arg) |
db577aea | 2267 | + REFERENCE_CONVERSION_BADNESS); |
5d161b24 | 2268 | if (overload_debug) |
db577aea | 2269 | /* Debugging only. */ |
5d161b24 DB |
2270 | fprintf_filtered (gdb_stderr,"------ Arg is %s [%d], parm is %s [%d]\n", |
2271 | TYPE_NAME (arg), TYPE_CODE (arg), TYPE_NAME (parm), TYPE_CODE (parm)); | |
c906108c SS |
2272 | |
2273 | /* x -> y means arg of type x being supplied for parameter of type y */ | |
2274 | ||
2275 | switch (TYPE_CODE (parm)) | |
2276 | { | |
c5aa993b JM |
2277 | case TYPE_CODE_PTR: |
2278 | switch (TYPE_CODE (arg)) | |
2279 | { | |
2280 | case TYPE_CODE_PTR: | |
2281 | if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) | |
2282 | return VOID_PTR_CONVERSION_BADNESS; | |
2283 | else | |
2284 | return rank_one_type (TYPE_TARGET_TYPE (parm), TYPE_TARGET_TYPE (arg)); | |
2285 | case TYPE_CODE_ARRAY: | |
2286 | return rank_one_type (TYPE_TARGET_TYPE (parm), TYPE_TARGET_TYPE (arg)); | |
2287 | case TYPE_CODE_FUNC: | |
2288 | return rank_one_type (TYPE_TARGET_TYPE (parm), arg); | |
2289 | case TYPE_CODE_INT: | |
2290 | case TYPE_CODE_ENUM: | |
2291 | case TYPE_CODE_CHAR: | |
2292 | case TYPE_CODE_RANGE: | |
2293 | case TYPE_CODE_BOOL: | |
2294 | return POINTER_CONVERSION_BADNESS; | |
2295 | default: | |
2296 | return INCOMPATIBLE_TYPE_BADNESS; | |
2297 | } | |
2298 | case TYPE_CODE_ARRAY: | |
2299 | switch (TYPE_CODE (arg)) | |
2300 | { | |
2301 | case TYPE_CODE_PTR: | |
2302 | case TYPE_CODE_ARRAY: | |
2303 | return rank_one_type (TYPE_TARGET_TYPE (parm), TYPE_TARGET_TYPE (arg)); | |
2304 | default: | |
2305 | return INCOMPATIBLE_TYPE_BADNESS; | |
2306 | } | |
2307 | case TYPE_CODE_FUNC: | |
2308 | switch (TYPE_CODE (arg)) | |
2309 | { | |
2310 | case TYPE_CODE_PTR: /* funcptr -> func */ | |
2311 | return rank_one_type (parm, TYPE_TARGET_TYPE (arg)); | |
2312 | default: | |
2313 | return INCOMPATIBLE_TYPE_BADNESS; | |
2314 | } | |
2315 | case TYPE_CODE_INT: | |
2316 | switch (TYPE_CODE (arg)) | |
2317 | { | |
2318 | case TYPE_CODE_INT: | |
2319 | if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2320 | { | |
2321 | /* Deal with signed, unsigned, and plain chars and | |
7b83ea04 | 2322 | signed and unsigned ints */ |
c5aa993b JM |
2323 | if (TYPE_NOSIGN (parm)) |
2324 | { | |
2325 | /* This case only for character types */ | |
2326 | if (TYPE_NOSIGN (arg)) /* plain char -> plain char */ | |
2327 | return 0; | |
2328 | else | |
2329 | return INTEGER_COERCION_BADNESS; /* signed/unsigned char -> plain char */ | |
2330 | } | |
2331 | else if (TYPE_UNSIGNED (parm)) | |
2332 | { | |
2333 | if (TYPE_UNSIGNED (arg)) | |
2334 | { | |
db577aea | 2335 | if (!strcmp_iw (TYPE_NAME (parm), TYPE_NAME (arg))) |
c5aa993b | 2336 | return 0; /* unsigned int -> unsigned int, or unsigned long -> unsigned long */ |
db577aea | 2337 | else if (!strcmp_iw (TYPE_NAME (arg), "int") && !strcmp_iw (TYPE_NAME (parm), "long")) |
c5aa993b JM |
2338 | return INTEGER_PROMOTION_BADNESS; /* unsigned int -> unsigned long */ |
2339 | else | |
2340 | return INTEGER_COERCION_BADNESS; /* unsigned long -> unsigned int */ | |
2341 | } | |
2342 | else | |
2343 | { | |
db577aea | 2344 | if (!strcmp_iw (TYPE_NAME (arg), "long") && !strcmp_iw (TYPE_NAME (parm), "int")) |
c5aa993b JM |
2345 | return INTEGER_COERCION_BADNESS; /* signed long -> unsigned int */ |
2346 | else | |
2347 | return INTEGER_CONVERSION_BADNESS; /* signed int/long -> unsigned int/long */ | |
2348 | } | |
2349 | } | |
2350 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2351 | { | |
db577aea | 2352 | if (!strcmp_iw (TYPE_NAME (parm), TYPE_NAME (arg))) |
c5aa993b | 2353 | return 0; |
db577aea | 2354 | else if (!strcmp_iw (TYPE_NAME (arg), "int") && !strcmp_iw (TYPE_NAME (parm), "long")) |
c5aa993b JM |
2355 | return INTEGER_PROMOTION_BADNESS; |
2356 | else | |
2357 | return INTEGER_COERCION_BADNESS; | |
2358 | } | |
2359 | else | |
2360 | return INTEGER_COERCION_BADNESS; | |
2361 | } | |
2362 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2363 | return INTEGER_PROMOTION_BADNESS; | |
2364 | else | |
2365 | return INTEGER_COERCION_BADNESS; | |
2366 | case TYPE_CODE_ENUM: | |
2367 | case TYPE_CODE_CHAR: | |
2368 | case TYPE_CODE_RANGE: | |
2369 | case TYPE_CODE_BOOL: | |
2370 | return INTEGER_PROMOTION_BADNESS; | |
2371 | case TYPE_CODE_FLT: | |
2372 | return INT_FLOAT_CONVERSION_BADNESS; | |
2373 | case TYPE_CODE_PTR: | |
2374 | return NS_POINTER_CONVERSION_BADNESS; | |
2375 | default: | |
2376 | return INCOMPATIBLE_TYPE_BADNESS; | |
2377 | } | |
2378 | break; | |
2379 | case TYPE_CODE_ENUM: | |
2380 | switch (TYPE_CODE (arg)) | |
2381 | { | |
2382 | case TYPE_CODE_INT: | |
2383 | case TYPE_CODE_CHAR: | |
2384 | case TYPE_CODE_RANGE: | |
2385 | case TYPE_CODE_BOOL: | |
2386 | case TYPE_CODE_ENUM: | |
2387 | return INTEGER_COERCION_BADNESS; | |
2388 | case TYPE_CODE_FLT: | |
2389 | return INT_FLOAT_CONVERSION_BADNESS; | |
2390 | default: | |
2391 | return INCOMPATIBLE_TYPE_BADNESS; | |
2392 | } | |
2393 | break; | |
2394 | case TYPE_CODE_CHAR: | |
2395 | switch (TYPE_CODE (arg)) | |
2396 | { | |
2397 | case TYPE_CODE_RANGE: | |
2398 | case TYPE_CODE_BOOL: | |
2399 | case TYPE_CODE_ENUM: | |
2400 | return INTEGER_COERCION_BADNESS; | |
2401 | case TYPE_CODE_FLT: | |
2402 | return INT_FLOAT_CONVERSION_BADNESS; | |
2403 | case TYPE_CODE_INT: | |
2404 | if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) | |
2405 | return INTEGER_COERCION_BADNESS; | |
2406 | else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2407 | return INTEGER_PROMOTION_BADNESS; | |
2408 | /* >>> !! else fall through !! <<< */ | |
2409 | case TYPE_CODE_CHAR: | |
2410 | /* Deal with signed, unsigned, and plain chars for C++ | |
2411 | and with int cases falling through from previous case */ | |
2412 | if (TYPE_NOSIGN (parm)) | |
2413 | { | |
2414 | if (TYPE_NOSIGN (arg)) | |
2415 | return 0; | |
2416 | else | |
2417 | return INTEGER_COERCION_BADNESS; | |
2418 | } | |
2419 | else if (TYPE_UNSIGNED (parm)) | |
2420 | { | |
2421 | if (TYPE_UNSIGNED (arg)) | |
2422 | return 0; | |
2423 | else | |
2424 | return INTEGER_PROMOTION_BADNESS; | |
2425 | } | |
2426 | else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) | |
2427 | return 0; | |
2428 | else | |
2429 | return INTEGER_COERCION_BADNESS; | |
2430 | default: | |
2431 | return INCOMPATIBLE_TYPE_BADNESS; | |
2432 | } | |
2433 | break; | |
2434 | case TYPE_CODE_RANGE: | |
2435 | switch (TYPE_CODE (arg)) | |
2436 | { | |
2437 | case TYPE_CODE_INT: | |
2438 | case TYPE_CODE_CHAR: | |
2439 | case TYPE_CODE_RANGE: | |
2440 | case TYPE_CODE_BOOL: | |
2441 | case TYPE_CODE_ENUM: | |
2442 | return INTEGER_COERCION_BADNESS; | |
2443 | case TYPE_CODE_FLT: | |
2444 | return INT_FLOAT_CONVERSION_BADNESS; | |
2445 | default: | |
2446 | return INCOMPATIBLE_TYPE_BADNESS; | |
2447 | } | |
2448 | break; | |
2449 | case TYPE_CODE_BOOL: | |
2450 | switch (TYPE_CODE (arg)) | |
2451 | { | |
2452 | case TYPE_CODE_INT: | |
2453 | case TYPE_CODE_CHAR: | |
2454 | case TYPE_CODE_RANGE: | |
2455 | case TYPE_CODE_ENUM: | |
2456 | case TYPE_CODE_FLT: | |
2457 | case TYPE_CODE_PTR: | |
2458 | return BOOLEAN_CONVERSION_BADNESS; | |
2459 | case TYPE_CODE_BOOL: | |
2460 | return 0; | |
2461 | default: | |
2462 | return INCOMPATIBLE_TYPE_BADNESS; | |
2463 | } | |
2464 | break; | |
2465 | case TYPE_CODE_FLT: | |
2466 | switch (TYPE_CODE (arg)) | |
2467 | { | |
2468 | case TYPE_CODE_FLT: | |
2469 | if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) | |
2470 | return FLOAT_PROMOTION_BADNESS; | |
2471 | else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) | |
2472 | return 0; | |
2473 | else | |
2474 | return FLOAT_CONVERSION_BADNESS; | |
2475 | case TYPE_CODE_INT: | |
2476 | case TYPE_CODE_BOOL: | |
2477 | case TYPE_CODE_ENUM: | |
2478 | case TYPE_CODE_RANGE: | |
2479 | case TYPE_CODE_CHAR: | |
2480 | return INT_FLOAT_CONVERSION_BADNESS; | |
2481 | default: | |
2482 | return INCOMPATIBLE_TYPE_BADNESS; | |
2483 | } | |
2484 | break; | |
2485 | case TYPE_CODE_COMPLEX: | |
2486 | switch (TYPE_CODE (arg)) | |
2487 | { /* Strictly not needed for C++, but... */ | |
2488 | case TYPE_CODE_FLT: | |
2489 | return FLOAT_PROMOTION_BADNESS; | |
2490 | case TYPE_CODE_COMPLEX: | |
2491 | return 0; | |
2492 | default: | |
2493 | return INCOMPATIBLE_TYPE_BADNESS; | |
2494 | } | |
2495 | break; | |
2496 | case TYPE_CODE_STRUCT: | |
c906108c | 2497 | /* currently same as TYPE_CODE_CLASS */ |
c5aa993b JM |
2498 | switch (TYPE_CODE (arg)) |
2499 | { | |
2500 | case TYPE_CODE_STRUCT: | |
2501 | /* Check for derivation */ | |
2502 | if (is_ancestor (parm, arg)) | |
2503 | return BASE_CONVERSION_BADNESS; | |
2504 | /* else fall through */ | |
2505 | default: | |
2506 | return INCOMPATIBLE_TYPE_BADNESS; | |
2507 | } | |
2508 | break; | |
2509 | case TYPE_CODE_UNION: | |
2510 | switch (TYPE_CODE (arg)) | |
2511 | { | |
2512 | case TYPE_CODE_UNION: | |
2513 | default: | |
2514 | return INCOMPATIBLE_TYPE_BADNESS; | |
2515 | } | |
2516 | break; | |
2517 | case TYPE_CODE_MEMBER: | |
2518 | switch (TYPE_CODE (arg)) | |
2519 | { | |
2520 | default: | |
2521 | return INCOMPATIBLE_TYPE_BADNESS; | |
2522 | } | |
2523 | break; | |
2524 | case TYPE_CODE_METHOD: | |
2525 | switch (TYPE_CODE (arg)) | |
2526 | { | |
2527 | ||
2528 | default: | |
2529 | return INCOMPATIBLE_TYPE_BADNESS; | |
2530 | } | |
2531 | break; | |
2532 | case TYPE_CODE_REF: | |
2533 | switch (TYPE_CODE (arg)) | |
2534 | { | |
2535 | ||
2536 | default: | |
2537 | return INCOMPATIBLE_TYPE_BADNESS; | |
2538 | } | |
2539 | ||
2540 | break; | |
2541 | case TYPE_CODE_SET: | |
2542 | switch (TYPE_CODE (arg)) | |
2543 | { | |
2544 | /* Not in C++ */ | |
2545 | case TYPE_CODE_SET: | |
2546 | return rank_one_type (TYPE_FIELD_TYPE (parm, 0), TYPE_FIELD_TYPE (arg, 0)); | |
2547 | default: | |
2548 | return INCOMPATIBLE_TYPE_BADNESS; | |
2549 | } | |
2550 | break; | |
2551 | case TYPE_CODE_VOID: | |
2552 | default: | |
2553 | return INCOMPATIBLE_TYPE_BADNESS; | |
2554 | } /* switch (TYPE_CODE (arg)) */ | |
c906108c SS |
2555 | } |
2556 | ||
c5aa993b JM |
2557 | |
2558 | /* End of functions for overload resolution */ | |
c906108c | 2559 | |
c906108c | 2560 | static void |
fba45db2 | 2561 | print_bit_vector (B_TYPE *bits, int nbits) |
c906108c SS |
2562 | { |
2563 | int bitno; | |
2564 | ||
2565 | for (bitno = 0; bitno < nbits; bitno++) | |
2566 | { | |
2567 | if ((bitno % 8) == 0) | |
2568 | { | |
2569 | puts_filtered (" "); | |
2570 | } | |
2571 | if (B_TST (bits, bitno)) | |
2572 | { | |
2573 | printf_filtered ("1"); | |
2574 | } | |
2575 | else | |
2576 | { | |
2577 | printf_filtered ("0"); | |
2578 | } | |
2579 | } | |
2580 | } | |
2581 | ||
2582 | /* The args list is a strange beast. It is either terminated by a NULL | |
2583 | pointer for varargs functions, or by a pointer to a TYPE_CODE_VOID | |
2584 | type for normal fixed argcount functions. (FIXME someday) | |
2585 | Also note the first arg should be the "this" pointer, we may not want to | |
2586 | include it since we may get into a infinitely recursive situation. */ | |
2587 | ||
2588 | static void | |
fba45db2 | 2589 | print_arg_types (struct type **args, int spaces) |
c906108c SS |
2590 | { |
2591 | if (args != NULL) | |
2592 | { | |
2593 | while (*args != NULL) | |
2594 | { | |
2595 | recursive_dump_type (*args, spaces + 2); | |
c5aa993b | 2596 | if ((*args++)->code == TYPE_CODE_VOID) |
c906108c SS |
2597 | { |
2598 | break; | |
2599 | } | |
2600 | } | |
2601 | } | |
2602 | } | |
2603 | ||
2604 | static void | |
fba45db2 | 2605 | dump_fn_fieldlists (struct type *type, int spaces) |
c906108c SS |
2606 | { |
2607 | int method_idx; | |
2608 | int overload_idx; | |
2609 | struct fn_field *f; | |
2610 | ||
2611 | printfi_filtered (spaces, "fn_fieldlists "); | |
d4f3574e | 2612 | gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
c906108c SS |
2613 | printf_filtered ("\n"); |
2614 | for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) | |
2615 | { | |
2616 | f = TYPE_FN_FIELDLIST1 (type, method_idx); | |
2617 | printfi_filtered (spaces + 2, "[%d] name '%s' (", | |
2618 | method_idx, | |
2619 | TYPE_FN_FIELDLIST_NAME (type, method_idx)); | |
d4f3574e SS |
2620 | gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
2621 | gdb_stdout); | |
c906108c SS |
2622 | printf_filtered (") length %d\n", |
2623 | TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); | |
2624 | for (overload_idx = 0; | |
2625 | overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); | |
2626 | overload_idx++) | |
2627 | { | |
2628 | printfi_filtered (spaces + 4, "[%d] physname '%s' (", | |
2629 | overload_idx, | |
2630 | TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); | |
d4f3574e SS |
2631 | gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
2632 | gdb_stdout); | |
c906108c SS |
2633 | printf_filtered (")\n"); |
2634 | printfi_filtered (spaces + 8, "type "); | |
d4f3574e | 2635 | gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), gdb_stdout); |
c906108c SS |
2636 | printf_filtered ("\n"); |
2637 | ||
2638 | recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), | |
2639 | spaces + 8 + 2); | |
2640 | ||
2641 | printfi_filtered (spaces + 8, "args "); | |
d4f3574e | 2642 | gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), gdb_stdout); |
c906108c SS |
2643 | printf_filtered ("\n"); |
2644 | ||
2645 | print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), spaces); | |
2646 | printfi_filtered (spaces + 8, "fcontext "); | |
d4f3574e SS |
2647 | gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
2648 | gdb_stdout); | |
c906108c SS |
2649 | printf_filtered ("\n"); |
2650 | ||
2651 | printfi_filtered (spaces + 8, "is_const %d\n", | |
2652 | TYPE_FN_FIELD_CONST (f, overload_idx)); | |
2653 | printfi_filtered (spaces + 8, "is_volatile %d\n", | |
2654 | TYPE_FN_FIELD_VOLATILE (f, overload_idx)); | |
2655 | printfi_filtered (spaces + 8, "is_private %d\n", | |
2656 | TYPE_FN_FIELD_PRIVATE (f, overload_idx)); | |
2657 | printfi_filtered (spaces + 8, "is_protected %d\n", | |
2658 | TYPE_FN_FIELD_PROTECTED (f, overload_idx)); | |
2659 | printfi_filtered (spaces + 8, "is_stub %d\n", | |
2660 | TYPE_FN_FIELD_STUB (f, overload_idx)); | |
2661 | printfi_filtered (spaces + 8, "voffset %u\n", | |
2662 | TYPE_FN_FIELD_VOFFSET (f, overload_idx)); | |
2663 | } | |
2664 | } | |
2665 | } | |
2666 | ||
2667 | static void | |
fba45db2 | 2668 | print_cplus_stuff (struct type *type, int spaces) |
c906108c SS |
2669 | { |
2670 | printfi_filtered (spaces, "n_baseclasses %d\n", | |
2671 | TYPE_N_BASECLASSES (type)); | |
2672 | printfi_filtered (spaces, "nfn_fields %d\n", | |
2673 | TYPE_NFN_FIELDS (type)); | |
2674 | printfi_filtered (spaces, "nfn_fields_total %d\n", | |
2675 | TYPE_NFN_FIELDS_TOTAL (type)); | |
2676 | if (TYPE_N_BASECLASSES (type) > 0) | |
2677 | { | |
2678 | printfi_filtered (spaces, "virtual_field_bits (%d bits at *", | |
2679 | TYPE_N_BASECLASSES (type)); | |
d4f3574e | 2680 | gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), gdb_stdout); |
c906108c SS |
2681 | printf_filtered (")"); |
2682 | ||
2683 | print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), | |
2684 | TYPE_N_BASECLASSES (type)); | |
2685 | puts_filtered ("\n"); | |
2686 | } | |
2687 | if (TYPE_NFIELDS (type) > 0) | |
2688 | { | |
2689 | if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) | |
2690 | { | |
2691 | printfi_filtered (spaces, "private_field_bits (%d bits at *", | |
2692 | TYPE_NFIELDS (type)); | |
d4f3574e | 2693 | gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), gdb_stdout); |
c906108c SS |
2694 | printf_filtered (")"); |
2695 | print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), | |
2696 | TYPE_NFIELDS (type)); | |
2697 | puts_filtered ("\n"); | |
2698 | } | |
2699 | if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) | |
2700 | { | |
2701 | printfi_filtered (spaces, "protected_field_bits (%d bits at *", | |
2702 | TYPE_NFIELDS (type)); | |
d4f3574e | 2703 | gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), gdb_stdout); |
c906108c SS |
2704 | printf_filtered (")"); |
2705 | print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), | |
2706 | TYPE_NFIELDS (type)); | |
2707 | puts_filtered ("\n"); | |
2708 | } | |
2709 | } | |
2710 | if (TYPE_NFN_FIELDS (type) > 0) | |
2711 | { | |
2712 | dump_fn_fieldlists (type, spaces); | |
2713 | } | |
2714 | } | |
2715 | ||
2716 | static struct obstack dont_print_type_obstack; | |
2717 | ||
2718 | void | |
fba45db2 | 2719 | recursive_dump_type (struct type *type, int spaces) |
c906108c SS |
2720 | { |
2721 | int idx; | |
2722 | ||
2723 | if (spaces == 0) | |
2724 | obstack_begin (&dont_print_type_obstack, 0); | |
2725 | ||
2726 | if (TYPE_NFIELDS (type) > 0 | |
2727 | || (TYPE_CPLUS_SPECIFIC (type) && TYPE_NFN_FIELDS (type) > 0)) | |
2728 | { | |
2729 | struct type **first_dont_print | |
c5aa993b | 2730 | = (struct type **) obstack_base (&dont_print_type_obstack); |
c906108c | 2731 | |
c5aa993b JM |
2732 | int i = (struct type **) obstack_next_free (&dont_print_type_obstack) |
2733 | - first_dont_print; | |
c906108c SS |
2734 | |
2735 | while (--i >= 0) | |
2736 | { | |
2737 | if (type == first_dont_print[i]) | |
2738 | { | |
2739 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 2740 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
2741 | printf_filtered (" <same as already seen type>\n"); |
2742 | return; | |
2743 | } | |
2744 | } | |
2745 | ||
2746 | obstack_ptr_grow (&dont_print_type_obstack, type); | |
2747 | } | |
2748 | ||
2749 | printfi_filtered (spaces, "type node "); | |
d4f3574e | 2750 | gdb_print_host_address (type, gdb_stdout); |
c906108c SS |
2751 | printf_filtered ("\n"); |
2752 | printfi_filtered (spaces, "name '%s' (", | |
2753 | TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); | |
d4f3574e | 2754 | gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
c906108c SS |
2755 | printf_filtered (")\n"); |
2756 | if (TYPE_TAG_NAME (type) != NULL) | |
2757 | { | |
2758 | printfi_filtered (spaces, "tagname '%s' (", | |
2759 | TYPE_TAG_NAME (type)); | |
d4f3574e | 2760 | gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); |
c906108c SS |
2761 | printf_filtered (")\n"); |
2762 | } | |
2763 | printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); | |
2764 | switch (TYPE_CODE (type)) | |
2765 | { | |
c5aa993b JM |
2766 | case TYPE_CODE_UNDEF: |
2767 | printf_filtered ("(TYPE_CODE_UNDEF)"); | |
2768 | break; | |
2769 | case TYPE_CODE_PTR: | |
2770 | printf_filtered ("(TYPE_CODE_PTR)"); | |
2771 | break; | |
2772 | case TYPE_CODE_ARRAY: | |
2773 | printf_filtered ("(TYPE_CODE_ARRAY)"); | |
2774 | break; | |
2775 | case TYPE_CODE_STRUCT: | |
2776 | printf_filtered ("(TYPE_CODE_STRUCT)"); | |
2777 | break; | |
2778 | case TYPE_CODE_UNION: | |
2779 | printf_filtered ("(TYPE_CODE_UNION)"); | |
2780 | break; | |
2781 | case TYPE_CODE_ENUM: | |
2782 | printf_filtered ("(TYPE_CODE_ENUM)"); | |
2783 | break; | |
2784 | case TYPE_CODE_FUNC: | |
2785 | printf_filtered ("(TYPE_CODE_FUNC)"); | |
2786 | break; | |
2787 | case TYPE_CODE_INT: | |
2788 | printf_filtered ("(TYPE_CODE_INT)"); | |
2789 | break; | |
2790 | case TYPE_CODE_FLT: | |
2791 | printf_filtered ("(TYPE_CODE_FLT)"); | |
2792 | break; | |
2793 | case TYPE_CODE_VOID: | |
2794 | printf_filtered ("(TYPE_CODE_VOID)"); | |
2795 | break; | |
2796 | case TYPE_CODE_SET: | |
2797 | printf_filtered ("(TYPE_CODE_SET)"); | |
2798 | break; | |
2799 | case TYPE_CODE_RANGE: | |
2800 | printf_filtered ("(TYPE_CODE_RANGE)"); | |
2801 | break; | |
2802 | case TYPE_CODE_STRING: | |
2803 | printf_filtered ("(TYPE_CODE_STRING)"); | |
2804 | break; | |
2805 | case TYPE_CODE_ERROR: | |
2806 | printf_filtered ("(TYPE_CODE_ERROR)"); | |
2807 | break; | |
2808 | case TYPE_CODE_MEMBER: | |
2809 | printf_filtered ("(TYPE_CODE_MEMBER)"); | |
2810 | break; | |
2811 | case TYPE_CODE_METHOD: | |
2812 | printf_filtered ("(TYPE_CODE_METHOD)"); | |
2813 | break; | |
2814 | case TYPE_CODE_REF: | |
2815 | printf_filtered ("(TYPE_CODE_REF)"); | |
2816 | break; | |
2817 | case TYPE_CODE_CHAR: | |
2818 | printf_filtered ("(TYPE_CODE_CHAR)"); | |
2819 | break; | |
2820 | case TYPE_CODE_BOOL: | |
2821 | printf_filtered ("(TYPE_CODE_BOOL)"); | |
2822 | break; | |
2823 | case TYPE_CODE_TYPEDEF: | |
2824 | printf_filtered ("(TYPE_CODE_TYPEDEF)"); | |
2825 | break; | |
2826 | default: | |
2827 | printf_filtered ("(UNKNOWN TYPE CODE)"); | |
2828 | break; | |
c906108c SS |
2829 | } |
2830 | puts_filtered ("\n"); | |
2831 | printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); | |
2832 | printfi_filtered (spaces, "objfile "); | |
d4f3574e | 2833 | gdb_print_host_address (TYPE_OBJFILE (type), gdb_stdout); |
c906108c SS |
2834 | printf_filtered ("\n"); |
2835 | printfi_filtered (spaces, "target_type "); | |
d4f3574e | 2836 | gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
c906108c SS |
2837 | printf_filtered ("\n"); |
2838 | if (TYPE_TARGET_TYPE (type) != NULL) | |
2839 | { | |
2840 | recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); | |
2841 | } | |
2842 | printfi_filtered (spaces, "pointer_type "); | |
d4f3574e | 2843 | gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
c906108c SS |
2844 | printf_filtered ("\n"); |
2845 | printfi_filtered (spaces, "reference_type "); | |
d4f3574e | 2846 | gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
c906108c SS |
2847 | printf_filtered ("\n"); |
2848 | printfi_filtered (spaces, "flags 0x%x", TYPE_FLAGS (type)); | |
2849 | if (TYPE_FLAGS (type) & TYPE_FLAG_UNSIGNED) | |
2850 | { | |
2851 | puts_filtered (" TYPE_FLAG_UNSIGNED"); | |
2852 | } | |
2853 | if (TYPE_FLAGS (type) & TYPE_FLAG_STUB) | |
2854 | { | |
2855 | puts_filtered (" TYPE_FLAG_STUB"); | |
2856 | } | |
2857 | puts_filtered ("\n"); | |
2858 | printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); | |
d4f3574e | 2859 | gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
c906108c SS |
2860 | puts_filtered ("\n"); |
2861 | for (idx = 0; idx < TYPE_NFIELDS (type); idx++) | |
2862 | { | |
2863 | printfi_filtered (spaces + 2, | |
2864 | "[%d] bitpos %d bitsize %d type ", | |
2865 | idx, TYPE_FIELD_BITPOS (type, idx), | |
2866 | TYPE_FIELD_BITSIZE (type, idx)); | |
d4f3574e | 2867 | gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
c906108c SS |
2868 | printf_filtered (" name '%s' (", |
2869 | TYPE_FIELD_NAME (type, idx) != NULL | |
2870 | ? TYPE_FIELD_NAME (type, idx) | |
2871 | : "<NULL>"); | |
d4f3574e | 2872 | gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
c906108c SS |
2873 | printf_filtered (")\n"); |
2874 | if (TYPE_FIELD_TYPE (type, idx) != NULL) | |
2875 | { | |
2876 | recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); | |
2877 | } | |
2878 | } | |
2879 | printfi_filtered (spaces, "vptr_basetype "); | |
d4f3574e | 2880 | gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); |
c906108c SS |
2881 | puts_filtered ("\n"); |
2882 | if (TYPE_VPTR_BASETYPE (type) != NULL) | |
2883 | { | |
2884 | recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); | |
2885 | } | |
2886 | printfi_filtered (spaces, "vptr_fieldno %d\n", TYPE_VPTR_FIELDNO (type)); | |
2887 | switch (TYPE_CODE (type)) | |
2888 | { | |
c5aa993b JM |
2889 | case TYPE_CODE_METHOD: |
2890 | case TYPE_CODE_FUNC: | |
2891 | printfi_filtered (spaces, "arg_types "); | |
d4f3574e | 2892 | gdb_print_host_address (TYPE_ARG_TYPES (type), gdb_stdout); |
c5aa993b JM |
2893 | puts_filtered ("\n"); |
2894 | print_arg_types (TYPE_ARG_TYPES (type), spaces); | |
2895 | break; | |
c906108c | 2896 | |
c5aa993b JM |
2897 | case TYPE_CODE_STRUCT: |
2898 | printfi_filtered (spaces, "cplus_stuff "); | |
d4f3574e | 2899 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), gdb_stdout); |
c5aa993b JM |
2900 | puts_filtered ("\n"); |
2901 | print_cplus_stuff (type, spaces); | |
2902 | break; | |
c906108c | 2903 | |
701c159d AC |
2904 | case TYPE_CODE_FLT: |
2905 | printfi_filtered (spaces, "floatformat "); | |
2906 | if (TYPE_FLOATFORMAT (type) == NULL | |
2907 | || TYPE_FLOATFORMAT (type)->name == NULL) | |
2908 | puts_filtered ("(null)"); | |
2909 | else | |
2910 | puts_filtered (TYPE_FLOATFORMAT (type)->name); | |
2911 | puts_filtered ("\n"); | |
2912 | break; | |
2913 | ||
c5aa993b JM |
2914 | default: |
2915 | /* We have to pick one of the union types to be able print and test | |
7b83ea04 AC |
2916 | the value. Pick cplus_struct_type, even though we know it isn't |
2917 | any particular one. */ | |
c5aa993b | 2918 | printfi_filtered (spaces, "type_specific "); |
d4f3574e | 2919 | gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), gdb_stdout); |
c5aa993b JM |
2920 | if (TYPE_CPLUS_SPECIFIC (type) != NULL) |
2921 | { | |
2922 | printf_filtered (" (unknown data form)"); | |
2923 | } | |
2924 | printf_filtered ("\n"); | |
2925 | break; | |
c906108c SS |
2926 | |
2927 | } | |
2928 | if (spaces == 0) | |
2929 | obstack_free (&dont_print_type_obstack, NULL); | |
2930 | } | |
2931 | ||
a14ed312 | 2932 | static void build_gdbtypes (void); |
c906108c | 2933 | static void |
fba45db2 | 2934 | build_gdbtypes (void) |
c906108c SS |
2935 | { |
2936 | builtin_type_void = | |
2937 | init_type (TYPE_CODE_VOID, 1, | |
2938 | 0, | |
2939 | "void", (struct objfile *) NULL); | |
2940 | builtin_type_char = | |
2941 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
2942 | 0, | |
2943 | "char", (struct objfile *) NULL); | |
2944 | TYPE_FLAGS (builtin_type_char) |= TYPE_FLAG_NOSIGN; | |
c5aa993b | 2945 | builtin_type_true_char = |
9e0b60a8 JM |
2946 | init_type (TYPE_CODE_CHAR, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
2947 | 0, | |
2948 | "true character", (struct objfile *) NULL); | |
c906108c SS |
2949 | builtin_type_signed_char = |
2950 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
2951 | 0, | |
2952 | "signed char", (struct objfile *) NULL); | |
2953 | builtin_type_unsigned_char = | |
2954 | init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
2955 | TYPE_FLAG_UNSIGNED, | |
2956 | "unsigned char", (struct objfile *) NULL); | |
2957 | builtin_type_short = | |
2958 | init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT, | |
2959 | 0, | |
2960 | "short", (struct objfile *) NULL); | |
2961 | builtin_type_unsigned_short = | |
2962 | init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT, | |
2963 | TYPE_FLAG_UNSIGNED, | |
2964 | "unsigned short", (struct objfile *) NULL); | |
2965 | builtin_type_int = | |
2966 | init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, | |
2967 | 0, | |
2968 | "int", (struct objfile *) NULL); | |
2969 | builtin_type_unsigned_int = | |
2970 | init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT, | |
2971 | TYPE_FLAG_UNSIGNED, | |
2972 | "unsigned int", (struct objfile *) NULL); | |
2973 | builtin_type_long = | |
2974 | init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, | |
2975 | 0, | |
2976 | "long", (struct objfile *) NULL); | |
2977 | builtin_type_unsigned_long = | |
2978 | init_type (TYPE_CODE_INT, TARGET_LONG_BIT / TARGET_CHAR_BIT, | |
2979 | TYPE_FLAG_UNSIGNED, | |
2980 | "unsigned long", (struct objfile *) NULL); | |
2981 | builtin_type_long_long = | |
2982 | init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, | |
2983 | 0, | |
2984 | "long long", (struct objfile *) NULL); | |
c5aa993b | 2985 | builtin_type_unsigned_long_long = |
c906108c SS |
2986 | init_type (TYPE_CODE_INT, TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT, |
2987 | TYPE_FLAG_UNSIGNED, | |
2988 | "unsigned long long", (struct objfile *) NULL); | |
2989 | builtin_type_float = | |
2990 | init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT, | |
2991 | 0, | |
2992 | "float", (struct objfile *) NULL); | |
701c159d | 2993 | TYPE_FLOATFORMAT (builtin_type_float) = TARGET_FLOAT_FORMAT; |
c906108c SS |
2994 | builtin_type_double = |
2995 | init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, | |
2996 | 0, | |
2997 | "double", (struct objfile *) NULL); | |
701c159d | 2998 | TYPE_FLOATFORMAT (builtin_type_double) = TARGET_DOUBLE_FORMAT; |
c906108c SS |
2999 | builtin_type_long_double = |
3000 | init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT, | |
3001 | 0, | |
3002 | "long double", (struct objfile *) NULL); | |
701c159d | 3003 | TYPE_FLOATFORMAT (builtin_type_long_double) = TARGET_LONG_DOUBLE_FORMAT; |
c906108c SS |
3004 | builtin_type_complex = |
3005 | init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT, | |
3006 | 0, | |
3007 | "complex", (struct objfile *) NULL); | |
3008 | TYPE_TARGET_TYPE (builtin_type_complex) = builtin_type_float; | |
3009 | builtin_type_double_complex = | |
3010 | init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT, | |
3011 | 0, | |
3012 | "double complex", (struct objfile *) NULL); | |
3013 | TYPE_TARGET_TYPE (builtin_type_double_complex) = builtin_type_double; | |
3014 | builtin_type_string = | |
3015 | init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3016 | 0, | |
3017 | "string", (struct objfile *) NULL); | |
3018 | builtin_type_int8 = | |
3019 | init_type (TYPE_CODE_INT, 8 / 8, | |
3020 | 0, | |
3021 | "int8_t", (struct objfile *) NULL); | |
3022 | builtin_type_uint8 = | |
3023 | init_type (TYPE_CODE_INT, 8 / 8, | |
3024 | TYPE_FLAG_UNSIGNED, | |
3025 | "uint8_t", (struct objfile *) NULL); | |
3026 | builtin_type_int16 = | |
3027 | init_type (TYPE_CODE_INT, 16 / 8, | |
3028 | 0, | |
3029 | "int16_t", (struct objfile *) NULL); | |
3030 | builtin_type_uint16 = | |
3031 | init_type (TYPE_CODE_INT, 16 / 8, | |
3032 | TYPE_FLAG_UNSIGNED, | |
3033 | "uint16_t", (struct objfile *) NULL); | |
3034 | builtin_type_int32 = | |
3035 | init_type (TYPE_CODE_INT, 32 / 8, | |
3036 | 0, | |
3037 | "int32_t", (struct objfile *) NULL); | |
3038 | builtin_type_uint32 = | |
3039 | init_type (TYPE_CODE_INT, 32 / 8, | |
3040 | TYPE_FLAG_UNSIGNED, | |
3041 | "uint32_t", (struct objfile *) NULL); | |
3042 | builtin_type_int64 = | |
3043 | init_type (TYPE_CODE_INT, 64 / 8, | |
3044 | 0, | |
3045 | "int64_t", (struct objfile *) NULL); | |
3046 | builtin_type_uint64 = | |
3047 | init_type (TYPE_CODE_INT, 64 / 8, | |
3048 | TYPE_FLAG_UNSIGNED, | |
3049 | "uint64_t", (struct objfile *) NULL); | |
8b982acf EZ |
3050 | builtin_type_int128 = |
3051 | init_type (TYPE_CODE_INT, 128 / 8, | |
3052 | 0, | |
3053 | "int128_t", (struct objfile *) NULL); | |
3054 | builtin_type_uint128 = | |
3055 | init_type (TYPE_CODE_INT, 128 / 8, | |
3056 | TYPE_FLAG_UNSIGNED, | |
3057 | "uint128_t", (struct objfile *) NULL); | |
c906108c SS |
3058 | builtin_type_bool = |
3059 | init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT, | |
3060 | 0, | |
3061 | "bool", (struct objfile *) NULL); | |
3062 | ||
c5aa993b | 3063 | /* Add user knob for controlling resolution of opaque types */ |
c906108c | 3064 | add_show_from_set |
c5aa993b | 3065 | (add_set_cmd ("opaque-type-resolution", class_support, var_boolean, (char *) &opaque_type_resolution, |
c906108c SS |
3066 | "Set resolution of opaque struct/class/union types (if set before loading symbols).", |
3067 | &setlist), | |
3068 | &showlist); | |
3069 | opaque_type_resolution = 1; | |
3070 | ||
917317f4 JM |
3071 | /* Build SIMD types. */ |
3072 | builtin_type_v4sf | |
3073 | = init_simd_type ("__builtin_v4sf", builtin_type_float, "f", 4); | |
c2d11a7d JM |
3074 | builtin_type_v4si |
3075 | = init_simd_type ("__builtin_v4si", builtin_type_int32, "f", 4); | |
3076 | builtin_type_v8qi | |
3077 | = init_simd_type ("__builtin_v8qi", builtin_type_int8, "f", 8); | |
3078 | builtin_type_v4hi | |
3079 | = init_simd_type ("__builtin_v4hi", builtin_type_int16, "f", 4); | |
3080 | builtin_type_v2si | |
3081 | = init_simd_type ("__builtin_v2si", builtin_type_int32, "f", 2); | |
c4093a6a JM |
3082 | |
3083 | /* Pointer/Address types. */ | |
ee3a7b7f JB |
3084 | |
3085 | /* NOTE: on some targets, addresses and pointers are not necessarily | |
3086 | the same --- for example, on the D10V, pointers are 16 bits long, | |
3087 | but addresses are 32 bits long. See doc/gdbint.texinfo, | |
3088 | ``Pointers Are Not Always Addresses''. | |
3089 | ||
3090 | The upshot is: | |
3091 | - gdb's `struct type' always describes the target's | |
3092 | representation. | |
3093 | - gdb's `struct value' objects should always hold values in | |
3094 | target form. | |
3095 | - gdb's CORE_ADDR values are addresses in the unified virtual | |
3096 | address space that the assembler and linker work with. Thus, | |
3097 | since target_read_memory takes a CORE_ADDR as an argument, it | |
3098 | can access any memory on the target, even if the processor has | |
3099 | separate code and data address spaces. | |
3100 | ||
3101 | So, for example: | |
3102 | - If v is a value holding a D10V code pointer, its contents are | |
3103 | in target form: a big-endian address left-shifted two bits. | |
3104 | - If p is a D10V pointer type, TYPE_LENGTH (p) == 2, just as | |
3105 | sizeof (void *) == 2 on the target. | |
3106 | ||
3107 | In this context, builtin_type_CORE_ADDR is a bit odd: it's a | |
3108 | target type for a value the target will never see. It's only | |
3109 | used to hold the values of (typeless) linker symbols, which are | |
3110 | indeed in the unified virtual address space. */ | |
090a2205 | 3111 | builtin_type_void_data_ptr = make_pointer_type (builtin_type_void, NULL); |
ee3a7b7f JB |
3112 | builtin_type_void_func_ptr |
3113 | = lookup_pointer_type (lookup_function_type (builtin_type_void)); | |
c4093a6a | 3114 | builtin_type_CORE_ADDR = |
52204a0b | 3115 | init_type (TYPE_CODE_INT, TARGET_ADDR_BIT / 8, |
c4093a6a JM |
3116 | TYPE_FLAG_UNSIGNED, |
3117 | "__CORE_ADDR", (struct objfile *) NULL); | |
3118 | builtin_type_bfd_vma = | |
3119 | init_type (TYPE_CODE_INT, TARGET_BFD_VMA_BIT / 8, | |
3120 | TYPE_FLAG_UNSIGNED, | |
3121 | "__bfd_vma", (struct objfile *) NULL); | |
c906108c SS |
3122 | } |
3123 | ||
3124 | ||
a14ed312 | 3125 | extern void _initialize_gdbtypes (void); |
c906108c | 3126 | void |
fba45db2 | 3127 | _initialize_gdbtypes (void) |
c906108c | 3128 | { |
5d161b24 | 3129 | struct cmd_list_element *c; |
c906108c | 3130 | build_gdbtypes (); |
0f71a2f6 JM |
3131 | |
3132 | /* FIXME - For the moment, handle types by swapping them in and out. | |
3133 | Should be using the per-architecture data-pointer and a large | |
3134 | struct. */ | |
c5aa993b JM |
3135 | register_gdbarch_swap (&builtin_type_void, sizeof (struct type *), NULL); |
3136 | register_gdbarch_swap (&builtin_type_char, sizeof (struct type *), NULL); | |
3137 | register_gdbarch_swap (&builtin_type_short, sizeof (struct type *), NULL); | |
3138 | register_gdbarch_swap (&builtin_type_int, sizeof (struct type *), NULL); | |
3139 | register_gdbarch_swap (&builtin_type_long, sizeof (struct type *), NULL); | |
3140 | register_gdbarch_swap (&builtin_type_long_long, sizeof (struct type *), NULL); | |
3141 | register_gdbarch_swap (&builtin_type_signed_char, sizeof (struct type *), NULL); | |
3142 | register_gdbarch_swap (&builtin_type_unsigned_char, sizeof (struct type *), NULL); | |
3143 | register_gdbarch_swap (&builtin_type_unsigned_short, sizeof (struct type *), NULL); | |
3144 | register_gdbarch_swap (&builtin_type_unsigned_int, sizeof (struct type *), NULL); | |
3145 | register_gdbarch_swap (&builtin_type_unsigned_long, sizeof (struct type *), NULL); | |
3146 | register_gdbarch_swap (&builtin_type_unsigned_long_long, sizeof (struct type *), NULL); | |
3147 | register_gdbarch_swap (&builtin_type_float, sizeof (struct type *), NULL); | |
3148 | register_gdbarch_swap (&builtin_type_double, sizeof (struct type *), NULL); | |
3149 | register_gdbarch_swap (&builtin_type_long_double, sizeof (struct type *), NULL); | |
3150 | register_gdbarch_swap (&builtin_type_complex, sizeof (struct type *), NULL); | |
3151 | register_gdbarch_swap (&builtin_type_double_complex, sizeof (struct type *), NULL); | |
3152 | register_gdbarch_swap (&builtin_type_string, sizeof (struct type *), NULL); | |
3153 | register_gdbarch_swap (&builtin_type_int8, sizeof (struct type *), NULL); | |
3154 | register_gdbarch_swap (&builtin_type_uint8, sizeof (struct type *), NULL); | |
3155 | register_gdbarch_swap (&builtin_type_int16, sizeof (struct type *), NULL); | |
3156 | register_gdbarch_swap (&builtin_type_uint16, sizeof (struct type *), NULL); | |
3157 | register_gdbarch_swap (&builtin_type_int32, sizeof (struct type *), NULL); | |
3158 | register_gdbarch_swap (&builtin_type_uint32, sizeof (struct type *), NULL); | |
3159 | register_gdbarch_swap (&builtin_type_int64, sizeof (struct type *), NULL); | |
3160 | register_gdbarch_swap (&builtin_type_uint64, sizeof (struct type *), NULL); | |
8b982acf EZ |
3161 | register_gdbarch_swap (&builtin_type_int128, sizeof (struct type *), NULL); |
3162 | register_gdbarch_swap (&builtin_type_uint128, sizeof (struct type *), NULL); | |
917317f4 | 3163 | register_gdbarch_swap (&builtin_type_v4sf, sizeof (struct type *), NULL); |
c2d11a7d JM |
3164 | register_gdbarch_swap (&builtin_type_v4si, sizeof (struct type *), NULL); |
3165 | register_gdbarch_swap (&builtin_type_v8qi, sizeof (struct type *), NULL); | |
3166 | register_gdbarch_swap (&builtin_type_v4hi, sizeof (struct type *), NULL); | |
3167 | register_gdbarch_swap (&builtin_type_v2si, sizeof (struct type *), NULL); | |
090a2205 | 3168 | REGISTER_GDBARCH_SWAP (builtin_type_void_data_ptr); |
ee3a7b7f | 3169 | REGISTER_GDBARCH_SWAP (builtin_type_void_func_ptr); |
c4093a6a JM |
3170 | REGISTER_GDBARCH_SWAP (builtin_type_CORE_ADDR); |
3171 | REGISTER_GDBARCH_SWAP (builtin_type_bfd_vma); | |
0f71a2f6 | 3172 | register_gdbarch_swap (NULL, 0, build_gdbtypes); |
5d161b24 | 3173 | |
598f52df AC |
3174 | /* Note: These types do not need to be swapped - they are target |
3175 | neutral. */ | |
3176 | builtin_type_ieee_single_big = | |
3177 | init_type (TYPE_CODE_FLT, floatformat_ieee_single_big.totalsize / 8, | |
3178 | 0, "builtin_type_ieee_single_big", NULL); | |
3179 | TYPE_FLOATFORMAT (builtin_type_ieee_single_big) = &floatformat_ieee_single_big; | |
3180 | builtin_type_ieee_single_little = | |
3181 | init_type (TYPE_CODE_FLT, floatformat_ieee_single_little.totalsize / 8, | |
3182 | 0, "builtin_type_ieee_single_little", NULL); | |
3183 | builtin_type_ieee_double_big = | |
3184 | init_type (TYPE_CODE_FLT, floatformat_ieee_double_big.totalsize / 8, | |
3185 | 0, "builtin_type_ieee_double_big", NULL); | |
3186 | builtin_type_ieee_double_little = | |
3187 | init_type (TYPE_CODE_FLT, floatformat_ieee_double_little.totalsize / 8, | |
3188 | 0, "builtin_type_ieee_double_little", NULL); | |
3189 | builtin_type_ieee_double_littlebyte_bigword = | |
3190 | init_type (TYPE_CODE_FLT, floatformat_ieee_double_littlebyte_bigword.totalsize / 8, | |
3191 | 0, "builtin_type_ieee_double_littlebyte_bigword", NULL); | |
3192 | builtin_type_i387_ext = | |
3193 | init_type (TYPE_CODE_FLT, floatformat_i387_ext.totalsize / 8, | |
3194 | 0, "builtin_type_i387_ext", NULL); | |
e371b258 | 3195 | TYPE_FLOATFORMAT (builtin_type_i387_ext) = &floatformat_i387_ext; |
598f52df AC |
3196 | builtin_type_m68881_ext = |
3197 | init_type (TYPE_CODE_FLT, floatformat_m68881_ext.totalsize / 8, | |
3198 | 0, "builtin_type_m68881_ext", NULL); | |
3199 | builtin_type_i960_ext = | |
3200 | init_type (TYPE_CODE_FLT, floatformat_i960_ext.totalsize / 8, | |
3201 | 0, "builtin_type_i960_ext", NULL); | |
3202 | builtin_type_m88110_ext = | |
3203 | init_type (TYPE_CODE_FLT, floatformat_m88110_ext.totalsize / 8, | |
3204 | 0, "builtin_type_m88110_ext", NULL); | |
3205 | builtin_type_m88110_harris_ext = | |
3206 | init_type (TYPE_CODE_FLT, floatformat_m88110_harris_ext.totalsize / 8, | |
3207 | 0, "builtin_type_m88110_harris_ext", NULL); | |
3208 | builtin_type_arm_ext_big = | |
3209 | init_type (TYPE_CODE_FLT, floatformat_arm_ext_big.totalsize / 8, | |
3210 | 0, "builtin_type_arm_ext_big", NULL); | |
3211 | builtin_type_arm_ext_littlebyte_bigword = | |
3212 | init_type (TYPE_CODE_FLT, floatformat_arm_ext_littlebyte_bigword.totalsize / 8, | |
3213 | 0, "builtin_type_arm_ext_littlebyte_bigword", NULL); | |
3214 | builtin_type_ia64_spill_big = | |
3215 | init_type (TYPE_CODE_FLT, floatformat_ia64_spill_big.totalsize / 8, | |
3216 | 0, "builtin_type_ia64_spill_big", NULL); | |
3217 | builtin_type_ia64_spill_little = | |
3218 | init_type (TYPE_CODE_FLT, floatformat_ia64_spill_little.totalsize / 8, | |
3219 | 0, "builtin_type_ia64_spill_little", NULL); | |
3220 | builtin_type_ia64_quad_big = | |
3221 | init_type (TYPE_CODE_FLT, floatformat_ia64_quad_big.totalsize / 8, | |
3222 | 0, "builtin_type_ia64_quad_big", NULL); | |
3223 | builtin_type_ia64_quad_little = | |
3224 | init_type (TYPE_CODE_FLT, floatformat_ia64_quad_little.totalsize / 8, | |
3225 | 0, "builtin_type_ia64_quad_little", NULL); | |
3226 | ||
5d161b24 DB |
3227 | add_show_from_set ( |
3228 | add_set_cmd ("overload", no_class, var_zinteger, (char *) &overload_debug, | |
3229 | "Set debugging of C++ overloading.\n\ | |
3230 | When enabled, ranking of the functions\n\ | |
3231 | is displayed.", &setdebuglist), | |
3232 | &showdebuglist); | |
c906108c | 3233 | } |