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