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078a0207 KS |
1 | /* Convert types from GDB to GCC |
2 | ||
b811d2c2 | 3 | Copyright (C) 2014-2020 Free Software Foundation, Inc. |
078a0207 KS |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | ||
21 | #include "defs.h" | |
268a13a5 | 22 | #include "gdbsupport/preprocessor.h" |
078a0207 KS |
23 | #include "gdbtypes.h" |
24 | #include "compile-internal.h" | |
25 | #include "compile-cplus.h" | |
268a13a5 | 26 | #include "gdbsupport/gdb_assert.h" |
078a0207 KS |
27 | #include "symtab.h" |
28 | #include "source.h" | |
29 | #include "cp-support.h" | |
30 | #include "cp-abi.h" | |
078a0207 KS |
31 | #include "objfiles.h" |
32 | #include "block.h" | |
33 | #include "gdbcmd.h" | |
34 | #include "c-lang.h" | |
7af7e9b5 | 35 | #include "compile-c.h" |
078a0207 KS |
36 | #include <algorithm> |
37 | ||
38 | /* Default compile flags for C++. */ | |
39 | ||
40 | const char *compile_cplus_instance::m_default_cflags = "-std=gnu++11"; | |
41 | ||
42 | /* Flag to enable internal debugging. */ | |
43 | ||
491144b5 | 44 | static bool debug_compile_cplus_types = false; |
078a0207 KS |
45 | |
46 | /* Flag to enable internal scope switching debugging. */ | |
47 | ||
491144b5 | 48 | static bool debug_compile_cplus_scopes = false; |
078a0207 KS |
49 | |
50 | /* Forward declarations. */ | |
51 | ||
52 | static gcc_type compile_cplus_convert_func (compile_cplus_instance *instance, | |
53 | struct type *type, | |
54 | bool strip_artificial); | |
55 | ||
56 | /* See description in compile-cplus.h. */ | |
57 | ||
58 | gdb::unique_xmalloc_ptr<char> | |
59 | compile_cplus_instance::decl_name (const char *natural) | |
60 | { | |
61 | if (natural == nullptr) | |
62 | return nullptr; | |
63 | ||
06d3e5b0 | 64 | gdb::unique_xmalloc_ptr<char> name = cp_func_name (natural); |
078a0207 | 65 | if (name != nullptr) |
06d3e5b0 | 66 | return name; |
078a0207 | 67 | |
b02f78f9 | 68 | return make_unique_xstrdup (natural); |
078a0207 KS |
69 | } |
70 | ||
71 | /* Get the access flag for the NUM'th field of TYPE. */ | |
72 | ||
73 | static enum gcc_cp_symbol_kind | |
74 | get_field_access_flag (const struct type *type, int num) | |
75 | { | |
76 | if (TYPE_FIELD_PROTECTED (type, num)) | |
77 | return GCC_CP_ACCESS_PROTECTED; | |
78 | else if (TYPE_FIELD_PRIVATE (type, num)) | |
79 | return GCC_CP_ACCESS_PRIVATE; | |
80 | ||
81 | /* GDB assumes everything else is public. */ | |
82 | return GCC_CP_ACCESS_PUBLIC; | |
83 | } | |
84 | ||
85 | /* Get the access flag for the NUM'th method of TYPE's FNI'th | |
86 | fieldlist. */ | |
87 | ||
88 | enum gcc_cp_symbol_kind | |
89 | get_method_access_flag (const struct type *type, int fni, int num) | |
90 | { | |
78134374 | 91 | gdb_assert (type->code () == TYPE_CODE_STRUCT); |
078a0207 KS |
92 | |
93 | /* If this type was not declared a class, everything is public. */ | |
94 | if (!TYPE_DECLARED_CLASS (type)) | |
95 | return GCC_CP_ACCESS_PUBLIC; | |
96 | ||
97 | /* Otherwise, read accessibility from the fn_field. */ | |
98 | const struct fn_field *methods = TYPE_FN_FIELDLIST1 (type, fni); | |
99 | if (TYPE_FN_FIELD_PROTECTED (methods, num)) | |
100 | return GCC_CP_ACCESS_PROTECTED; | |
101 | else if (TYPE_FN_FIELD_PRIVATE (methods, num)) | |
102 | return GCC_CP_ACCESS_PRIVATE; | |
103 | else | |
104 | return GCC_CP_ACCESS_PUBLIC; | |
105 | } | |
106 | ||
107 | /* A useful debugging function to output the scope SCOPE to stdout. */ | |
108 | ||
109 | static void __attribute__ ((used)) | |
110 | debug_print_scope (const compile_scope &scope) | |
111 | { | |
112 | for (const auto &comp: scope) | |
113 | { | |
114 | const char *symbol = (comp.bsymbol.symbol != nullptr | |
987012b8 | 115 | ? comp.bsymbol.symbol->natural_name () |
078a0207 KS |
116 | : "<none>"); |
117 | ||
118 | printf_unfiltered ("\tname = %s, symbol = %s\n", comp.name.c_str (), | |
119 | symbol); | |
120 | } | |
121 | } | |
122 | ||
123 | /* See description in compile-cplus.h. */ | |
124 | ||
125 | compile_scope | |
126 | type_name_to_scope (const char *type_name, const struct block *block) | |
127 | { | |
128 | compile_scope scope; | |
129 | ||
130 | if (type_name == nullptr) | |
131 | { | |
132 | /* An anonymous type. We cannot really do much here. We simply cannot | |
133 | look up anonymous types easily/at all. */ | |
134 | return scope; | |
135 | } | |
136 | ||
137 | const char *p = type_name; | |
138 | std::string lookup_name; | |
139 | ||
140 | while (*p != '\0') | |
141 | { | |
142 | /* Create a string token of the first component of TYPE_NAME. */ | |
143 | int len = cp_find_first_component (p); | |
144 | std::string s (p, len); | |
145 | ||
146 | /* Advance past the last token. */ | |
147 | p += len; | |
148 | ||
149 | /* Look up the symbol and decide when to stop. */ | |
150 | if (!lookup_name.empty ()) | |
151 | lookup_name += "::"; | |
152 | lookup_name += s; | |
153 | ||
154 | /* Look up the resulting name. */ | |
155 | struct block_symbol bsymbol | |
156 | = lookup_symbol (lookup_name.c_str (), block, VAR_DOMAIN, nullptr); | |
157 | ||
158 | if (bsymbol.symbol != nullptr) | |
159 | { | |
160 | scope_component comp = {s, bsymbol}; | |
161 | ||
162 | scope.push_back (comp); | |
163 | ||
78134374 | 164 | if (SYMBOL_TYPE (bsymbol.symbol)->code () != TYPE_CODE_NAMESPACE) |
078a0207 KS |
165 | { |
166 | /* We're done. */ | |
167 | break; | |
168 | } | |
169 | } | |
170 | ||
171 | if (*p == ':') | |
172 | { | |
173 | ++p; | |
174 | if (*p == ':') | |
175 | ++p; | |
176 | else | |
177 | { | |
178 | /* This shouldn't happen since we are not attempting to | |
179 | loop over user input. This name is generated by GDB | |
180 | from debug info. */ | |
181 | internal_error (__FILE__, __LINE__, | |
182 | _("malformed TYPE_NAME during parsing")); | |
183 | } | |
184 | } | |
185 | } | |
186 | ||
187 | return scope; | |
188 | } | |
189 | ||
190 | /* Compare two scope_components for equality. These are equal if the names | |
191 | of the two components' are the same. */ | |
192 | ||
193 | bool | |
194 | operator== (const scope_component &lhs, const scope_component &rhs) | |
195 | { | |
196 | return lhs.name == rhs.name; | |
197 | } | |
198 | ||
199 | /* Compare two scope_components for inequality. These are not equal if | |
200 | the two components' names are not equal. */ | |
201 | ||
202 | bool | |
203 | operator!= (const scope_component &lhs, const scope_component &rhs) | |
204 | { | |
205 | return lhs.name != rhs.name; | |
206 | } | |
207 | ||
208 | /* Compare two compile_scopes for equality. These are equal if they are both | |
209 | contain the same number of components and each component is equal. */ | |
210 | ||
211 | bool | |
212 | operator== (const compile_scope &lhs, const compile_scope &rhs) | |
213 | { | |
214 | if (lhs.size () != rhs.size ()) | |
215 | return false; | |
216 | ||
217 | for (int i = 0; i < lhs.size (); ++i) | |
218 | { | |
219 | if (lhs[i] != rhs[i]) | |
220 | return false; | |
221 | } | |
222 | ||
223 | return true; | |
224 | } | |
225 | ||
226 | /* Compare two compile_scopes for inequality. These are inequal if they | |
227 | contain unequal number of elements or if any of the components are not | |
228 | the same. */ | |
229 | ||
230 | bool | |
231 | operator!= (const compile_scope &lhs, const compile_scope &rhs) | |
232 | { | |
233 | if (lhs.size () != rhs.size ()) | |
234 | return true; | |
235 | ||
236 | for (int i = 0; i < lhs.size (); ++i) | |
237 | { | |
238 | if (lhs[i] != rhs[i]) | |
239 | return true; | |
240 | } | |
241 | ||
242 | return false; | |
243 | } | |
244 | ||
245 | /* See description in compile-cplus.h. */ | |
246 | ||
247 | void | |
d82b3862 | 248 | compile_cplus_instance::enter_scope (compile_scope &&new_scope) |
078a0207 KS |
249 | { |
250 | bool must_push = m_scopes.empty () || m_scopes.back () != new_scope; | |
251 | ||
252 | new_scope.m_pushed = must_push; | |
253 | ||
254 | /* Save the new scope. */ | |
d82b3862 | 255 | m_scopes.push_back (std::move (new_scope)); |
078a0207 KS |
256 | |
257 | if (must_push) | |
258 | { | |
259 | if (debug_compile_cplus_scopes) | |
fdad7678 KS |
260 | { |
261 | fprintf_unfiltered (gdb_stdlog, "entering new scope %s\n", | |
461464f2 | 262 | host_address_to_string (&m_scopes.back ())); |
fdad7678 | 263 | } |
078a0207 KS |
264 | |
265 | /* Push the global namespace. */ | |
266 | plugin ().push_namespace (""); | |
267 | ||
268 | /* Push all other namespaces. Note that we do not push the last | |
269 | scope_component -- that's the actual type we are converting. */ | |
270 | std::for_each | |
461464f2 | 271 | (m_scopes.back ().begin (), m_scopes.back ().end () - 1, |
078a0207 KS |
272 | [this] (const scope_component &comp) |
273 | { | |
78134374 | 274 | gdb_assert (SYMBOL_TYPE (comp.bsymbol.symbol)->code () |
078a0207 KS |
275 | == TYPE_CODE_NAMESPACE); |
276 | ||
277 | const char *ns = (comp.name == CP_ANONYMOUS_NAMESPACE_STR ? nullptr | |
278 | : comp.name.c_str ()); | |
279 | ||
280 | this->plugin ().push_namespace (ns); | |
281 | }); | |
282 | } | |
283 | else | |
284 | { | |
285 | if (debug_compile_cplus_scopes) | |
286 | { | |
287 | fprintf_unfiltered (gdb_stdlog, "staying in current scope -- " | |
288 | "scopes are identical\n"); | |
289 | } | |
290 | } | |
291 | } | |
292 | ||
293 | /* See description in compile-cplus.h. */ | |
294 | ||
295 | void | |
296 | compile_cplus_instance::leave_scope () | |
297 | { | |
298 | /* Get the current scope and remove it from the internal list of | |
299 | scopes. */ | |
300 | compile_scope current = m_scopes.back (); | |
301 | ||
302 | m_scopes.pop_back (); | |
303 | ||
304 | if (current.m_pushed) | |
305 | { | |
306 | if (debug_compile_cplus_scopes) | |
a0dc02a6 SM |
307 | { |
308 | fprintf_unfiltered (gdb_stdlog, "leaving scope %s\n", | |
309 | host_address_to_string (¤t)); | |
310 | } | |
078a0207 KS |
311 | |
312 | /* Pop namespaces. */ | |
313 | std::for_each | |
314 | (current.begin (),current.end () - 1, | |
315 | [this] (const scope_component &comp) { | |
78134374 | 316 | gdb_assert (SYMBOL_TYPE (comp.bsymbol.symbol)->code () |
078a0207 KS |
317 | == TYPE_CODE_NAMESPACE); |
318 | this->plugin ().pop_binding_level (comp.name.c_str ()); | |
319 | }); | |
320 | ||
321 | /* Pop global namespace. */ | |
322 | plugin ().pop_binding_level (""); | |
323 | } | |
324 | else | |
325 | { | |
326 | if (debug_compile_cplus_scopes) | |
327 | fprintf_unfiltered (gdb_stdlog, | |
328 | "identical scopes -- not leaving scope\n"); | |
329 | } | |
330 | } | |
331 | ||
332 | /* See description in compile-cplus.h. */ | |
333 | ||
334 | compile_scope | |
335 | compile_cplus_instance::new_scope (const char *type_name, struct type *type) | |
336 | { | |
337 | /* Break the type name into components. If TYPE was defined in some | |
338 | superclass, we do not process TYPE but process the enclosing type | |
339 | instead. */ | |
340 | compile_scope scope = type_name_to_scope (type_name, block ()); | |
341 | ||
342 | if (!scope.empty ()) | |
343 | { | |
344 | /* Get the name of the last component, which should be the | |
345 | unqualified name of the type to process. */ | |
346 | scope_component &comp = scope.back (); | |
347 | ||
348 | if (!types_equal (type, SYMBOL_TYPE (comp.bsymbol.symbol)) | |
349 | && (m_scopes.empty () | |
350 | || (m_scopes.back ().back ().bsymbol.symbol | |
351 | != comp.bsymbol.symbol))) | |
352 | { | |
353 | /* The type is defined inside another class(es). Convert that | |
354 | type instead of defining this type. */ | |
355 | convert_type (SYMBOL_TYPE (comp.bsymbol.symbol)); | |
356 | ||
357 | /* If the original type (passed in to us) is defined in a nested | |
358 | class, the previous call will give us that type's gcc_type. | |
359 | Upper layers are expecting to get the original type's | |
360 | gcc_type! */ | |
d82b3862 | 361 | get_cached_type (type, &scope.m_nested_type); |
078a0207 KS |
362 | return scope; |
363 | } | |
364 | } | |
365 | else | |
366 | { | |
7d93a1e0 | 367 | if (type->name () == nullptr) |
078a0207 KS |
368 | { |
369 | /* Anonymous type */ | |
370 | ||
371 | /* We don't have a qualified name for this to look up, but | |
372 | we need a scope. We have to assume, then, that it is the same | |
373 | as the current scope, if any. */ | |
374 | if (!m_scopes.empty ()) | |
375 | { | |
376 | scope = m_scopes.back (); | |
377 | scope.m_pushed = false; | |
378 | } | |
379 | else | |
380 | scope.push_back (scope_component ()); | |
381 | } | |
382 | else | |
383 | { | |
384 | scope_component comp | |
385 | = { | |
7d93a1e0 SM |
386 | decl_name (type->name ()).get (), |
387 | lookup_symbol (type->name (), block (), VAR_DOMAIN, nullptr) | |
078a0207 KS |
388 | }; |
389 | scope.push_back (comp); | |
390 | } | |
391 | } | |
392 | ||
393 | /* There must be at least one component in the compile_scope. */ | |
394 | gdb_assert (scope.size () > 0); | |
395 | return scope; | |
396 | } | |
397 | ||
398 | /* See description in compile-cplus.h. */ | |
399 | ||
400 | gcc_type | |
401 | compile_cplus_instance::convert_reference_base | |
402 | (gcc_type base, enum gcc_cp_ref_qualifiers rquals) | |
403 | { | |
404 | return this->plugin ().build_reference_type (base, rquals); | |
405 | } | |
406 | ||
407 | /* Convert a reference type to its gcc representation. */ | |
408 | ||
409 | static gcc_type | |
410 | compile_cplus_convert_reference (compile_cplus_instance *instance, | |
411 | struct type *type) | |
412 | { | |
413 | gcc_type target = instance->convert_type (TYPE_TARGET_TYPE (type)); | |
414 | ||
415 | enum gcc_cp_ref_qualifiers quals = GCC_CP_REF_QUAL_NONE; | |
78134374 | 416 | switch (type->code ()) |
078a0207 KS |
417 | { |
418 | case TYPE_CODE_REF: | |
419 | quals = GCC_CP_REF_QUAL_LVALUE; | |
420 | break; | |
421 | case TYPE_CODE_RVALUE_REF: | |
422 | quals = GCC_CP_REF_QUAL_RVALUE; | |
423 | break; | |
424 | default: | |
425 | gdb_assert_not_reached ("unexpected type code for reference type"); | |
426 | } | |
427 | ||
428 | return instance->convert_reference_base (target, quals); | |
429 | } | |
430 | ||
431 | /* See description in compile-cplus.h. */ | |
432 | ||
433 | gcc_type | |
434 | compile_cplus_instance::convert_pointer_base(gcc_type target) | |
435 | { | |
436 | return plugin ().build_pointer_type (target); | |
437 | } | |
438 | ||
439 | /* Convert a pointer type to its gcc representation. */ | |
440 | ||
441 | static gcc_type | |
442 | compile_cplus_convert_pointer (compile_cplus_instance *instance, | |
443 | struct type *type) | |
444 | { | |
445 | gcc_type target = instance->convert_type (TYPE_TARGET_TYPE (type)); | |
446 | ||
447 | return instance->convert_pointer_base (target); | |
448 | } | |
449 | ||
450 | /* Convert an array type to its gcc representation. */ | |
451 | ||
452 | static gcc_type | |
453 | compile_cplus_convert_array (compile_cplus_instance *instance, | |
454 | struct type *type) | |
455 | { | |
3d967001 | 456 | struct type *range = type->index_type (); |
078a0207 KS |
457 | gcc_type element_type = instance->convert_type (TYPE_TARGET_TYPE (type)); |
458 | ||
3b606f38 | 459 | if (range->bounds ()->low.kind () != PROP_CONST) |
078a0207 KS |
460 | { |
461 | const char *s = _("array type with non-constant" | |
462 | " lower bound is not supported"); | |
463 | ||
464 | return instance->plugin ().error (s); | |
465 | } | |
466 | ||
5537ddd0 | 467 | if (range->bounds ()->low.const_val () != 0) |
078a0207 KS |
468 | { |
469 | const char *s = _("cannot convert array type with " | |
470 | "non-zero lower bound to C"); | |
471 | ||
472 | return instance->plugin ().error (s); | |
473 | } | |
474 | ||
3b606f38 SM |
475 | if (range->bounds ()->high.kind () == PROP_LOCEXPR |
476 | || range->bounds ()->high.kind () == PROP_LOCLIST) | |
078a0207 KS |
477 | { |
478 | if (TYPE_VECTOR (type)) | |
479 | { | |
480 | const char *s = _("variably-sized vector type is not supported"); | |
481 | ||
482 | return instance->plugin ().error (s); | |
483 | } | |
484 | ||
485 | std::string upper_bound | |
599088e3 | 486 | = c_get_range_decl_name (&range->bounds ()->high); |
078a0207 KS |
487 | return instance->plugin ().build_vla_array_type (element_type, |
488 | upper_bound.c_str ()); | |
489 | } | |
490 | else | |
491 | { | |
492 | LONGEST low_bound, high_bound, count; | |
493 | ||
494 | if (get_array_bounds (type, &low_bound, &high_bound) == 0) | |
495 | count = -1; | |
496 | else | |
497 | { | |
498 | gdb_assert (low_bound == 0); /* Ensured above. */ | |
499 | count = high_bound + 1; | |
500 | } | |
501 | ||
502 | if (TYPE_VECTOR (type)) | |
503 | return instance->plugin ().build_vector_type (element_type, count); | |
504 | ||
505 | return instance->plugin ().build_array_type (element_type, count); | |
506 | } | |
507 | } | |
508 | ||
509 | /* Convert a typedef of TYPE. If not GCC_CP_ACCESS_NONE, NESTED_ACCESS | |
510 | will define the accessibility of the typedef definition in its | |
511 | containing class. */ | |
512 | ||
513 | static gcc_type | |
514 | compile_cplus_convert_typedef (compile_cplus_instance *instance, | |
515 | struct type *type, | |
516 | enum gcc_cp_symbol_kind nested_access) | |
517 | { | |
7d93a1e0 | 518 | compile_scope scope = instance->new_scope (type->name (), type); |
078a0207 KS |
519 | |
520 | if (scope.nested_type () != GCC_TYPE_NONE) | |
521 | return scope.nested_type (); | |
522 | ||
523 | gdb::unique_xmalloc_ptr<char> name | |
7d93a1e0 | 524 | = compile_cplus_instance::decl_name (type->name ()); |
078a0207 KS |
525 | |
526 | /* Make sure the scope for this type has been pushed. */ | |
d82b3862 | 527 | instance->enter_scope (std::move (scope)); |
078a0207 KS |
528 | |
529 | /* Convert the typedef's real type. */ | |
530 | gcc_type typedef_type = instance->convert_type (check_typedef (type)); | |
531 | ||
532 | instance->plugin ().build_decl ("typedef", name.get (), | |
533 | GCC_CP_SYMBOL_TYPEDEF | nested_access, | |
534 | typedef_type, 0, 0, nullptr, 0); | |
535 | ||
536 | /* Completed this scope. */ | |
537 | instance->leave_scope (); | |
538 | return typedef_type; | |
539 | } | |
540 | ||
541 | /* Convert types defined in TYPE. */ | |
542 | ||
543 | static void | |
544 | compile_cplus_convert_type_defns (compile_cplus_instance *instance, | |
545 | struct type *type) | |
546 | { | |
547 | int i; | |
548 | enum gcc_cp_symbol_kind accessibility; | |
549 | ||
550 | /* Convert typedefs. */ | |
551 | for (i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i) | |
552 | { | |
553 | if (TYPE_TYPEDEF_FIELD_PROTECTED (type, i)) | |
554 | accessibility = GCC_CP_ACCESS_PROTECTED; | |
555 | else if (TYPE_TYPEDEF_FIELD_PRIVATE (type, i)) | |
556 | accessibility = GCC_CP_ACCESS_PRIVATE; | |
557 | else | |
558 | accessibility = GCC_CP_ACCESS_PUBLIC; | |
559 | instance->convert_type (TYPE_TYPEDEF_FIELD_TYPE (type, i), accessibility); | |
560 | } | |
561 | ||
562 | /* Convert nested types. */ | |
563 | for (i = 0; i < TYPE_NESTED_TYPES_COUNT (type); ++i) | |
564 | { | |
565 | if (TYPE_NESTED_TYPES_FIELD_PROTECTED (type, i)) | |
566 | accessibility = GCC_CP_ACCESS_PROTECTED; | |
567 | else if (TYPE_NESTED_TYPES_FIELD_PRIVATE (type, i)) | |
568 | accessibility = GCC_CP_ACCESS_PRIVATE; | |
569 | else | |
570 | accessibility = GCC_CP_ACCESS_PUBLIC; | |
571 | instance->convert_type (TYPE_NESTED_TYPES_FIELD_TYPE (type, i), | |
572 | accessibility); | |
573 | } | |
574 | } | |
575 | ||
576 | /* Convert data members defined in TYPE, which should be struct/class/union | |
577 | with gcc_type COMP_TYPE. */ | |
578 | ||
579 | static void | |
580 | compile_cplus_convert_struct_or_union_members | |
581 | (compile_cplus_instance *instance, struct type *type, gcc_type comp_type) | |
582 | { | |
1f704f76 | 583 | for (int i = TYPE_N_BASECLASSES (type); i < type->num_fields (); ++i) |
078a0207 KS |
584 | { |
585 | const char *field_name = TYPE_FIELD_NAME (type, i); | |
586 | ||
587 | if (TYPE_FIELD_IGNORE (type, i) | |
588 | || TYPE_FIELD_ARTIFICIAL (type, i)) | |
589 | continue; | |
590 | ||
591 | /* GDB records unnamed/anonymous fields with empty string names. */ | |
592 | if (*field_name == '\0') | |
593 | field_name = nullptr; | |
594 | ||
595 | gcc_type field_type | |
940da03e | 596 | = instance->convert_type (type->field (i).type ()); |
078a0207 | 597 | |
ceacbf6e | 598 | if (field_is_static (&type->field (i))) |
078a0207 KS |
599 | { |
600 | CORE_ADDR physaddr; | |
601 | ||
602 | switch (TYPE_FIELD_LOC_KIND (type, i)) | |
603 | { | |
604 | case FIELD_LOC_KIND_PHYSADDR: | |
605 | { | |
606 | physaddr = TYPE_FIELD_STATIC_PHYSADDR (type, i); | |
607 | ||
608 | instance->plugin ().build_decl | |
609 | ("field physaddr", field_name, | |
610 | (GCC_CP_SYMBOL_VARIABLE | get_field_access_flag (type, i)), | |
611 | field_type, nullptr, physaddr, nullptr, 0); | |
612 | } | |
613 | break; | |
614 | ||
615 | case FIELD_LOC_KIND_PHYSNAME: | |
616 | { | |
617 | const char *physname = TYPE_FIELD_STATIC_PHYSNAME (type, i); | |
618 | struct block_symbol sym | |
619 | = lookup_symbol (physname, instance->block (), | |
620 | VAR_DOMAIN, nullptr); | |
621 | ||
622 | if (sym.symbol == nullptr) | |
623 | { | |
624 | /* We didn't actually find the symbol. There's little | |
625 | we can do but ignore this member. */ | |
626 | continue; | |
627 | } | |
628 | const char *filename = symbol_symtab (sym.symbol)->filename; | |
629 | unsigned int line = SYMBOL_LINE (sym.symbol); | |
630 | ||
631 | physaddr = SYMBOL_VALUE_ADDRESS (sym.symbol); | |
632 | instance->plugin ().build_decl | |
633 | ("field physname", field_name, | |
634 | (GCC_CP_SYMBOL_VARIABLE| get_field_access_flag (type, i)), | |
635 | field_type, nullptr, physaddr, filename, line); | |
636 | } | |
637 | break; | |
638 | ||
639 | default: | |
640 | gdb_assert_not_reached | |
641 | ("unexpected static field location kind"); | |
642 | } | |
643 | } | |
644 | else | |
645 | { | |
646 | unsigned long bitsize = TYPE_FIELD_BITSIZE (type, i); | |
647 | enum gcc_cp_symbol_kind field_flags = GCC_CP_SYMBOL_FIELD | |
648 | | get_field_access_flag (type, i); | |
649 | ||
650 | if (bitsize == 0) | |
940da03e | 651 | bitsize = 8 * TYPE_LENGTH (type->field (i).type ()); |
078a0207 KS |
652 | |
653 | instance->plugin ().build_field | |
654 | (field_name, field_type, field_flags, bitsize, | |
655 | TYPE_FIELD_BITPOS (type, i)); | |
656 | } | |
657 | } | |
658 | } | |
659 | ||
660 | /* Convert a method type to its gcc representation. */ | |
661 | ||
662 | static gcc_type | |
663 | compile_cplus_convert_method (compile_cplus_instance *instance, | |
664 | struct type *parent_type, | |
665 | struct type *method_type) | |
666 | { | |
667 | /* Get the actual function type of the method, the corresponding class's | |
668 | type and corresponding qualifier flags. */ | |
669 | gcc_type func_type = compile_cplus_convert_func (instance, method_type, true); | |
670 | gcc_type class_type = instance->convert_type (parent_type); | |
671 | gcc_cp_qualifiers_flags quals = (enum gcc_cp_qualifiers) 0; | |
672 | ||
673 | if (TYPE_CONST (method_type)) | |
674 | quals |= GCC_CP_QUALIFIER_CONST; | |
675 | if (TYPE_VOLATILE (method_type)) | |
676 | quals |= GCC_CP_QUALIFIER_VOLATILE; | |
677 | if (TYPE_RESTRICT (method_type)) | |
678 | quals |= GCC_CP_QUALIFIER_RESTRICT; | |
679 | ||
680 | /* Not yet implemented. */ | |
681 | gcc_cp_ref_qualifiers_flags rquals = GCC_CP_REF_QUAL_NONE; | |
682 | ||
683 | return instance->plugin ().build_method_type | |
684 | (class_type, func_type, quals, rquals); | |
685 | } | |
686 | ||
687 | /* Convert a member or method pointer represented by TYPE. */ | |
688 | ||
689 | static gcc_type | |
690 | compile_cplus_convert_memberptr (compile_cplus_instance *instance, | |
691 | struct type *type) | |
692 | { | |
693 | struct type *containing_class = TYPE_SELF_TYPE (type); | |
694 | ||
695 | if (containing_class == nullptr) | |
696 | return GCC_TYPE_NONE; | |
697 | ||
698 | gcc_type class_type = instance->convert_type (containing_class); | |
699 | gcc_type member_type | |
700 | = instance->convert_type (TYPE_TARGET_TYPE (type)); | |
701 | ||
702 | return instance->plugin ().build_pointer_to_member_type | |
703 | (class_type, member_type); | |
704 | } | |
705 | ||
706 | /* Convert all methods defined in TYPE, which should be a class/struct/union | |
707 | with gcc_type CLASS_TYPE. */ | |
708 | ||
709 | static void | |
710 | compile_cplus_convert_struct_or_union_methods (compile_cplus_instance *instance, | |
711 | struct type *type, | |
712 | gcc_type class_type) | |
713 | { | |
714 | for (int i = 0; i < TYPE_NFN_FIELDS (type); ++i) | |
715 | { | |
716 | struct fn_field *methods = TYPE_FN_FIELDLIST1 (type, i); | |
717 | gdb::unique_xmalloc_ptr<char> overloaded_name | |
718 | = compile_cplus_instance::decl_name (TYPE_FN_FIELDLIST_NAME (type, i)); | |
719 | ||
720 | /* Loop through the fieldlist, adding decls to the compiler's | |
721 | representation of the class. */ | |
722 | for (int j = 0; j < TYPE_FN_FIELDLIST_LENGTH (type, i); ++j) | |
723 | { | |
724 | /* Skip artificial methods. */ | |
725 | if (TYPE_FN_FIELD_ARTIFICIAL (methods, j)) | |
726 | continue; | |
727 | ||
728 | gcc_cp_symbol_kind_flags sym_kind = GCC_CP_SYMBOL_FUNCTION; | |
729 | gcc_type method_type; | |
730 | struct block_symbol sym | |
731 | = lookup_symbol (TYPE_FN_FIELD_PHYSNAME (methods, j), | |
732 | instance->block (), VAR_DOMAIN, nullptr); | |
733 | ||
734 | if (sym.symbol == nullptr) | |
735 | { | |
736 | if (TYPE_FN_FIELD_VIRTUAL_P (methods, j)) | |
737 | { | |
738 | /* This is beyond hacky, and is really only a workaround for | |
739 | detecting pure virtual methods. */ | |
740 | method_type = compile_cplus_convert_method | |
741 | (instance, type, TYPE_FN_FIELD_TYPE (methods, j)); | |
742 | ||
743 | instance->plugin ().build_decl | |
744 | ("pure virtual method", overloaded_name.get (), | |
745 | (sym_kind | |
746 | | get_method_access_flag (type, i, j) | |
747 | | GCC_CP_FLAG_VIRTUAL_FUNCTION | |
748 | | GCC_CP_FLAG_PURE_VIRTUAL_FUNCTION), | |
749 | method_type, nullptr, 0, nullptr, 0); | |
750 | continue; | |
751 | } | |
752 | ||
753 | /* This can happen if we have a DW_AT_declaration DIE | |
754 | for the method, but no "definition"-type DIE (with | |
755 | DW_AT_specification referencing the decl DIE), i.e., | |
756 | the compiler has probably optimized the method away. | |
757 | ||
758 | In this case, all we can hope to do is issue a warning | |
759 | to the user letting him know. If the user has not actually | |
760 | requested using this method, things should still work. */ | |
761 | warning (_("Method %s appears to be optimized out.\n" | |
762 | "All references to this method will be undefined."), | |
763 | TYPE_FN_FIELD_PHYSNAME (methods, j)); | |
764 | continue; | |
765 | } | |
766 | ||
767 | const char *filename = symbol_symtab (sym.symbol)->filename; | |
768 | unsigned int line = SYMBOL_LINE (sym.symbol); | |
769 | CORE_ADDR address = BLOCK_START (SYMBOL_BLOCK_VALUE (sym.symbol)); | |
770 | const char *kind; | |
771 | ||
772 | if (TYPE_FN_FIELD_STATIC_P (methods, j)) | |
773 | { | |
774 | kind = "static method"; | |
775 | method_type = compile_cplus_convert_func | |
776 | (instance, TYPE_FN_FIELD_TYPE (methods, j), true); | |
777 | } | |
778 | else | |
779 | { | |
780 | kind = "method"; | |
781 | method_type = (compile_cplus_convert_method | |
782 | (instance, type, TYPE_FN_FIELD_TYPE (methods, j))); | |
783 | } | |
784 | ||
785 | if (TYPE_FN_FIELD_VIRTUAL_P (methods, j)) | |
786 | sym_kind |= GCC_CP_FLAG_VIRTUAL_FUNCTION; | |
787 | ||
788 | instance->plugin ().build_decl | |
789 | (kind, overloaded_name.get (), | |
790 | sym_kind | get_method_access_flag (type, i, j), | |
791 | method_type, nullptr, address, filename, line); | |
792 | } | |
793 | } | |
794 | } | |
795 | ||
796 | /* Convert a struct or union type to its gcc representation. If this type | |
797 | was defined in another type, NESTED_ACCESS should indicate the | |
798 | accessibility of this type. */ | |
799 | ||
800 | static gcc_type | |
801 | compile_cplus_convert_struct_or_union (compile_cplus_instance *instance, | |
802 | struct type *type, | |
803 | enum gcc_cp_symbol_kind nested_access) | |
804 | { | |
805 | const char *filename = nullptr; | |
806 | unsigned short line = 0; | |
807 | ||
808 | /* Get the decl name of this type. */ | |
809 | gdb::unique_xmalloc_ptr<char> name | |
7d93a1e0 | 810 | = compile_cplus_instance::decl_name (type->name ()); |
078a0207 KS |
811 | |
812 | /* Create a new scope for TYPE. */ | |
7d93a1e0 | 813 | compile_scope scope = instance->new_scope (type->name (), type); |
078a0207 KS |
814 | |
815 | if (scope.nested_type () != GCC_TYPE_NONE) | |
816 | { | |
817 | /* The type requested was actually defined inside another type, | |
818 | such as a nested class definition. Return that type. */ | |
819 | return scope.nested_type (); | |
820 | } | |
821 | ||
822 | /* Push all scopes. */ | |
d82b3862 | 823 | instance->enter_scope (std::move (scope)); |
078a0207 KS |
824 | |
825 | /* First we create the resulting type and enter it into our hash | |
826 | table. This lets recursive types work. */ | |
827 | ||
828 | gcc_decl resuld; | |
78134374 | 829 | if (type->code () == TYPE_CODE_STRUCT) |
078a0207 KS |
830 | { |
831 | const char *what = TYPE_DECLARED_CLASS (type) ? "struct" : "class"; | |
832 | ||
833 | resuld = instance->plugin ().build_decl | |
834 | (what, name.get (), (GCC_CP_SYMBOL_CLASS | nested_access | |
835 | | (TYPE_DECLARED_CLASS (type) | |
836 | ? GCC_CP_FLAG_CLASS_NOFLAG | |
837 | : GCC_CP_FLAG_CLASS_IS_STRUCT)), | |
838 | 0, nullptr, 0, filename, line); | |
839 | } | |
840 | else | |
841 | { | |
78134374 | 842 | gdb_assert (type->code () == TYPE_CODE_UNION); |
078a0207 KS |
843 | resuld = instance->plugin ().build_decl |
844 | ("union", name.get (), GCC_CP_SYMBOL_UNION | nested_access, | |
845 | 0, nullptr, 0, filename, line); | |
846 | } | |
847 | ||
848 | gcc_type result; | |
78134374 | 849 | if (type->code () == TYPE_CODE_STRUCT) |
078a0207 KS |
850 | { |
851 | struct gcc_vbase_array bases; | |
852 | int num_baseclasses = TYPE_N_BASECLASSES (type); | |
853 | ||
854 | memset (&bases, 0, sizeof (bases)); | |
855 | ||
856 | if (num_baseclasses > 0) | |
857 | { | |
858 | bases.elements = XNEWVEC (gcc_type, num_baseclasses); | |
859 | bases.flags = XNEWVEC (enum gcc_cp_symbol_kind, num_baseclasses); | |
860 | bases.n_elements = num_baseclasses; | |
861 | for (int i = 0; i < num_baseclasses; ++i) | |
862 | { | |
863 | struct type *base_type = TYPE_BASECLASS (type, i); | |
864 | ||
865 | bases.flags[i] = GCC_CP_SYMBOL_BASECLASS | |
866 | | get_field_access_flag (type, i) | |
867 | | (BASETYPE_VIA_VIRTUAL (type, i) | |
868 | ? GCC_CP_FLAG_BASECLASS_VIRTUAL | |
869 | : GCC_CP_FLAG_BASECLASS_NOFLAG); | |
870 | bases.elements[i] = instance->convert_type (base_type); | |
871 | } | |
872 | } | |
873 | ||
874 | result = instance->plugin ().start_class_type | |
875 | (name.get (), resuld, &bases, filename, line); | |
876 | xfree (bases.flags); | |
877 | xfree (bases.elements); | |
878 | } | |
879 | else | |
880 | { | |
78134374 | 881 | gdb_assert (type->code () == TYPE_CODE_UNION); |
078a0207 KS |
882 | result = instance->plugin ().start_class_type |
883 | (name.get (), resuld, nullptr, filename, line); | |
884 | } | |
885 | ||
886 | instance->insert_type (type, result); | |
887 | ||
888 | /* Add definitions. */ | |
889 | compile_cplus_convert_type_defns (instance, type); | |
890 | ||
891 | /* Add methods. */ | |
892 | compile_cplus_convert_struct_or_union_methods (instance, type, result); | |
893 | ||
894 | /* Add members. */ | |
895 | compile_cplus_convert_struct_or_union_members (instance, type, result); | |
896 | ||
897 | /* All finished. */ | |
898 | instance->plugin ().finish_class_type (name.get (), TYPE_LENGTH (type)); | |
899 | ||
900 | /* Pop all scopes. */ | |
901 | instance->leave_scope (); | |
902 | return result; | |
903 | } | |
904 | ||
905 | /* Convert an enum type to its gcc representation. If this type | |
906 | was defined in another type, NESTED_ACCESS should indicate the | |
907 | accessibility of this type.*/ | |
908 | ||
909 | static gcc_type | |
910 | compile_cplus_convert_enum (compile_cplus_instance *instance, struct type *type, | |
911 | enum gcc_cp_symbol_kind nested_access) | |
912 | { | |
9c056022 | 913 | bool scoped_enum_p = false; |
078a0207 KS |
914 | |
915 | /* Create a new scope for this type. */ | |
7d93a1e0 | 916 | compile_scope scope = instance->new_scope (type->name (), type); |
078a0207 KS |
917 | |
918 | if (scope.nested_type () != GCC_TYPE_NONE) | |
919 | { | |
920 | /* The type requested was actually defined inside another type, | |
921 | such as a nested class definition. Return that type. */ | |
922 | return scope.nested_type (); | |
923 | } | |
924 | ||
925 | gdb::unique_xmalloc_ptr<char> name | |
7d93a1e0 | 926 | = compile_cplus_instance::decl_name (type->name ()); |
078a0207 KS |
927 | |
928 | /* Push all scopes. */ | |
d82b3862 | 929 | instance->enter_scope (std::move (scope)); |
078a0207 KS |
930 | |
931 | gcc_type int_type | |
c6d940a9 | 932 | = instance->plugin ().get_int_type (type->is_unsigned (), |
078a0207 KS |
933 | TYPE_LENGTH (type), nullptr); |
934 | gcc_type result | |
935 | = instance->plugin ().start_enum_type (name.get (), int_type, | |
936 | GCC_CP_SYMBOL_ENUM | nested_access | |
937 | | (scoped_enum_p | |
938 | ? GCC_CP_FLAG_ENUM_SCOPED | |
939 | : GCC_CP_FLAG_ENUM_NOFLAG), | |
940 | nullptr, 0); | |
1f704f76 | 941 | for (int i = 0; i < type->num_fields (); ++i) |
078a0207 KS |
942 | { |
943 | gdb::unique_xmalloc_ptr<char> fname | |
944 | = compile_cplus_instance::decl_name (TYPE_FIELD_NAME (type, i)); | |
945 | ||
946 | if (TYPE_FIELD_LOC_KIND (type, i) != FIELD_LOC_KIND_ENUMVAL | |
947 | || fname == nullptr) | |
948 | continue; | |
949 | ||
950 | instance->plugin ().build_enum_constant (result, fname.get (), | |
951 | TYPE_FIELD_ENUMVAL (type, i)); | |
952 | } | |
953 | ||
954 | /* Finish enum definition and pop scopes. */ | |
955 | instance->plugin ().finish_enum_type (result); | |
956 | instance->leave_scope (); | |
957 | return result; | |
958 | } | |
959 | ||
960 | /* Convert a function type to its gcc representation. This function does | |
961 | not deal with function templates. */ | |
962 | ||
963 | static gcc_type | |
964 | compile_cplus_convert_func (compile_cplus_instance *instance, | |
965 | struct type *type, bool strip_artificial) | |
966 | { | |
967 | int is_varargs = TYPE_VARARGS (type); | |
968 | struct type *target_type = TYPE_TARGET_TYPE (type); | |
969 | ||
970 | /* Functions with no debug info have no return type. Ideally we'd | |
971 | want to fallback to the type of the cast just before the | |
972 | function, like GDB's built-in expression parser, but we don't | |
973 | have access to that type here. For now, fallback to int, like | |
974 | GDB's parser used to do. */ | |
975 | if (target_type == nullptr) | |
976 | { | |
977 | if (TYPE_OBJFILE_OWNED (type)) | |
978 | target_type = objfile_type (TYPE_OWNER (type).objfile)->builtin_int; | |
979 | else | |
980 | target_type = builtin_type (TYPE_OWNER (type).gdbarch)->builtin_int; | |
981 | warning (_("function has unknown return type; assuming int")); | |
982 | } | |
983 | ||
984 | /* This approach means we can't make self-referential function | |
985 | types. Those are impossible in C, though. */ | |
986 | gcc_type return_type = instance->convert_type (target_type); | |
987 | ||
988 | struct gcc_type_array array = | |
1f704f76 | 989 | { type->num_fields (), XNEWVEC (gcc_type, type->num_fields ()) }; |
078a0207 | 990 | int artificials = 0; |
1f704f76 | 991 | for (int i = 0; i < type->num_fields (); ++i) |
078a0207 KS |
992 | { |
993 | if (strip_artificial && TYPE_FIELD_ARTIFICIAL (type, i)) | |
994 | { | |
995 | --array.n_elements; | |
996 | ++artificials; | |
997 | } | |
998 | else | |
999 | { | |
1000 | array.elements[i - artificials] | |
940da03e | 1001 | = instance->convert_type (type->field (i).type ()); |
078a0207 KS |
1002 | } |
1003 | } | |
1004 | ||
1005 | /* We omit setting the argument types to `void' to be a little flexible | |
1006 | with some minsyms like printf (compile-cplus.exp has examples). */ | |
1007 | gcc_type result = instance->plugin ().build_function_type | |
1008 | (return_type, &array, is_varargs); | |
1009 | xfree (array.elements); | |
1010 | return result; | |
1011 | } | |
1012 | ||
1013 | /* Convert an integer type to its gcc representation. */ | |
1014 | ||
1015 | static gcc_type | |
1016 | compile_cplus_convert_int (compile_cplus_instance *instance, struct type *type) | |
1017 | { | |
20ce4123 | 1018 | if (type->has_no_signedness ()) |
078a0207 KS |
1019 | { |
1020 | gdb_assert (TYPE_LENGTH (type) == 1); | |
1021 | return instance->plugin ().get_char_type (); | |
1022 | } | |
1023 | ||
1024 | return instance->plugin ().get_int_type | |
c6d940a9 | 1025 | (type->is_unsigned (), TYPE_LENGTH (type), type->name ()); |
078a0207 KS |
1026 | } |
1027 | ||
1028 | /* Convert a floating-point type to its gcc representation. */ | |
1029 | ||
1030 | static gcc_type | |
1031 | compile_cplus_convert_float (compile_cplus_instance *instance, | |
1032 | struct type *type) | |
1033 | { | |
1034 | return instance->plugin ().get_float_type | |
7d93a1e0 | 1035 | (TYPE_LENGTH (type), type->name ()); |
078a0207 KS |
1036 | } |
1037 | ||
1038 | /* Convert the 'void' type to its gcc representation. */ | |
1039 | ||
1040 | static gcc_type | |
1041 | compile_cplus_convert_void (compile_cplus_instance *instance, struct type *type) | |
1042 | { | |
1043 | return instance->plugin ().get_void_type (); | |
1044 | } | |
1045 | ||
1046 | /* Convert a boolean type to its gcc representation. */ | |
1047 | ||
1048 | static gcc_type | |
1049 | compile_cplus_convert_bool (compile_cplus_instance *instance, struct type *type) | |
1050 | { | |
1051 | return instance->plugin ().get_bool_type (); | |
1052 | } | |
1053 | ||
1054 | /* See description in compile-cplus.h. */ | |
1055 | ||
1056 | gcc_type | |
1057 | compile_cplus_instance::convert_qualified_base (gcc_type base, | |
1058 | gcc_cp_qualifiers_flags quals) | |
1059 | { | |
1060 | gcc_type result = base; | |
1061 | ||
a0dc02a6 | 1062 | if (quals != 0) |
078a0207 KS |
1063 | result = plugin ().build_qualified_type (base, quals); |
1064 | ||
1065 | return result; | |
1066 | } | |
1067 | ||
1068 | /* See description in compile-cplus.h. */ | |
1069 | ||
1070 | static gcc_type | |
1071 | compile_cplus_convert_qualified (compile_cplus_instance *instance, | |
1072 | struct type *type) | |
1073 | { | |
1074 | struct type *unqual = make_unqualified_type (type); | |
1075 | gcc_cp_qualifiers_flags quals = (enum gcc_cp_qualifiers) 0; | |
1076 | gcc_type unqual_converted = instance->convert_type (unqual); | |
1077 | ||
1078 | if (TYPE_CONST (type)) | |
1079 | quals |= GCC_CP_QUALIFIER_CONST; | |
1080 | if (TYPE_VOLATILE (type)) | |
1081 | quals |= GCC_CP_QUALIFIER_VOLATILE; | |
1082 | if (TYPE_RESTRICT (type)) | |
1083 | quals |= GCC_CP_QUALIFIER_RESTRICT; | |
1084 | ||
1085 | return instance->convert_qualified_base (unqual_converted, quals); | |
1086 | } | |
1087 | ||
1088 | /* Convert a complex type to its gcc representation. */ | |
1089 | ||
1090 | static gcc_type | |
1091 | compile_cplus_convert_complex (compile_cplus_instance *instance, | |
1092 | struct type *type) | |
1093 | { | |
1094 | gcc_type base = instance->convert_type (TYPE_TARGET_TYPE (type)); | |
1095 | ||
1096 | return instance->plugin ().build_complex_type (base); | |
1097 | } | |
1098 | ||
1099 | /* Convert a namespace of TYPE. */ | |
1100 | ||
1101 | static gcc_type | |
1102 | compile_cplus_convert_namespace (compile_cplus_instance *instance, | |
1103 | struct type *type) | |
1104 | { | |
7d93a1e0 | 1105 | compile_scope scope = instance->new_scope (type->name (), type); |
078a0207 | 1106 | gdb::unique_xmalloc_ptr<char> name |
7d93a1e0 | 1107 | = compile_cplus_instance::decl_name (type->name ()); |
078a0207 KS |
1108 | |
1109 | /* Push scope. */ | |
d82b3862 | 1110 | instance->enter_scope (std::move (scope)); |
078a0207 KS |
1111 | |
1112 | /* Convert this namespace. */ | |
1113 | instance->plugin ().push_namespace (name.get ()); | |
1114 | instance->plugin ().pop_binding_level (name.get ()); | |
1115 | ||
1116 | /* Pop scope. */ | |
1117 | instance->leave_scope (); | |
1118 | ||
1119 | /* Namespaces are non-cacheable types. */ | |
1120 | return GCC_TYPE_NONE; | |
1121 | } | |
1122 | ||
1123 | /* A helper function which knows how to convert most types from their | |
1124 | gdb representation to the corresponding gcc form. This examines | |
1125 | the TYPE and dispatches to the appropriate conversion function. It | |
1126 | returns the gcc type. | |
1127 | ||
1128 | If the type was defined in another type, NESTED_ACCESS should indicate the | |
1129 | accessibility of this type. */ | |
1130 | ||
1131 | static gcc_type | |
1132 | convert_type_cplus_basic (compile_cplus_instance *instance, | |
1133 | struct type *type, | |
1134 | enum gcc_cp_symbol_kind nested_access) | |
1135 | { | |
1136 | /* If we are converting a qualified type, first convert the | |
1137 | unqualified type and then apply the qualifiers. */ | |
1138 | if ((TYPE_INSTANCE_FLAGS (type) & (TYPE_INSTANCE_FLAG_CONST | |
1139 | | TYPE_INSTANCE_FLAG_VOLATILE | |
1140 | | TYPE_INSTANCE_FLAG_RESTRICT)) != 0) | |
1141 | return compile_cplus_convert_qualified (instance, type); | |
1142 | ||
78134374 | 1143 | switch (type->code ()) |
078a0207 KS |
1144 | { |
1145 | case TYPE_CODE_REF: | |
1146 | case TYPE_CODE_RVALUE_REF: | |
1147 | return compile_cplus_convert_reference (instance, type); | |
1148 | ||
1149 | case TYPE_CODE_PTR: | |
1150 | return compile_cplus_convert_pointer (instance, type); | |
1151 | ||
1152 | case TYPE_CODE_ARRAY: | |
1153 | return compile_cplus_convert_array (instance, type); | |
1154 | ||
1155 | case TYPE_CODE_STRUCT: | |
1156 | case TYPE_CODE_UNION: | |
1157 | return | |
1158 | compile_cplus_convert_struct_or_union (instance, type, nested_access); | |
1159 | ||
1160 | case TYPE_CODE_ENUM: | |
1161 | return compile_cplus_convert_enum (instance, type, nested_access); | |
1162 | ||
1163 | case TYPE_CODE_FUNC: | |
1164 | return compile_cplus_convert_func (instance, type, false); | |
1165 | ||
1166 | case TYPE_CODE_METHOD: | |
1167 | return | |
1168 | compile_cplus_convert_method (instance, TYPE_SELF_TYPE (type), type); | |
1169 | ||
1170 | case TYPE_CODE_MEMBERPTR: | |
1171 | case TYPE_CODE_METHODPTR: | |
1172 | return compile_cplus_convert_memberptr (instance, type); | |
1173 | break; | |
1174 | ||
1175 | case TYPE_CODE_INT: | |
1176 | return compile_cplus_convert_int (instance, type); | |
1177 | ||
1178 | case TYPE_CODE_FLT: | |
1179 | return compile_cplus_convert_float (instance, type); | |
1180 | ||
1181 | case TYPE_CODE_VOID: | |
1182 | return compile_cplus_convert_void (instance, type); | |
1183 | ||
1184 | case TYPE_CODE_BOOL: | |
1185 | return compile_cplus_convert_bool (instance, type); | |
1186 | ||
1187 | case TYPE_CODE_COMPLEX: | |
1188 | return compile_cplus_convert_complex (instance, type); | |
1189 | ||
1190 | case TYPE_CODE_NAMESPACE: | |
1191 | return compile_cplus_convert_namespace (instance, type); | |
1192 | ||
1193 | case TYPE_CODE_TYPEDEF: | |
1194 | return compile_cplus_convert_typedef (instance, type, nested_access); | |
1195 | ||
1196 | default: | |
1197 | break; | |
1198 | } | |
1199 | ||
1200 | std::string s = string_printf (_("unhandled TYPE_CODE %d"), | |
78134374 | 1201 | type->code ()); |
078a0207 KS |
1202 | |
1203 | return instance->plugin ().error (s.c_str ()); | |
1204 | } | |
1205 | ||
1206 | gcc_type | |
1207 | compile_cplus_instance::convert_type (struct type *type, | |
1208 | enum gcc_cp_symbol_kind nested_access) | |
1209 | { | |
1210 | /* Check if TYPE has already been converted. */ | |
1211 | gcc_type result; | |
d82b3862 | 1212 | if (get_cached_type (type, &result)) |
078a0207 KS |
1213 | return result; |
1214 | ||
1215 | /* It is the first time this type has been seen -- convert it | |
1216 | and cache it, if appropriate.. */ | |
1217 | result = convert_type_cplus_basic (this, type, nested_access); | |
1218 | if (result != GCC_TYPE_NONE) | |
1219 | insert_type (type, result); | |
1220 | return result; | |
1221 | } | |
1222 | ||
1223 | void | |
1224 | compile_cplus_instance::gcc_cplus_enter_scope | |
1225 | (void *datum, struct gcc_cp_context *gcc_context) | |
1226 | { | |
1227 | } | |
1228 | ||
1229 | void | |
1230 | compile_cplus_instance::gcc_cplus_leave_scope | |
1231 | (void *datum, struct gcc_cp_context *gcc_context) | |
1232 | { | |
1233 | } | |
1234 | ||
1235 | \f | |
1236 | ||
1237 | /* Plug-in forwards. */ | |
1238 | ||
1239 | /* C++ plug-in wrapper. */ | |
1240 | ||
1241 | /* A result printer for plug-in calls that return a gcc_type or | |
1242 | gcc_decl. */ | |
1243 | ||
1244 | static void | |
5c889512 | 1245 | compile_cplus_debug_output_1 (ULONGEST arg) |
078a0207 | 1246 | { |
5c889512 | 1247 | fprintf_unfiltered (gdb_stdlog, "%s", pulongest (arg)); |
078a0207 KS |
1248 | } |
1249 | ||
1250 | static void | |
1251 | compile_cplus_debug_output_1 (const char *arg) | |
1252 | { | |
1253 | if (arg == nullptr) | |
1254 | fputs_unfiltered ("NULL", gdb_stdlog); | |
1255 | else | |
1256 | fputs_unfiltered (arg, gdb_stdlog); | |
1257 | } | |
1258 | ||
1259 | static void | |
1260 | compile_cplus_debug_output () | |
1261 | { | |
1262 | } | |
1263 | ||
1264 | template <typename T> | |
1265 | static void | |
1266 | compile_cplus_debug_output_1 (const T *arg) | |
1267 | { | |
1268 | } | |
1269 | ||
1270 | template <typename T, typename... Targs> | |
1271 | static void | |
1272 | compile_cplus_debug_output (T arg, Targs... Args) | |
1273 | { | |
1274 | compile_cplus_debug_output_1 (arg); | |
1275 | fputc_unfiltered (' ', gdb_stdlog); | |
1276 | compile_cplus_debug_output (Args...); | |
1277 | } | |
1278 | ||
1279 | #define FORWARD(OP,...) m_context->cp_ops->OP(m_context, ##__VA_ARGS__) | |
1280 | #define OUTPUT_DEBUG_RESULT(R) \ | |
1281 | if (debug_compile_cplus_types) \ | |
1282 | { \ | |
1283 | fputs_unfiltered (": ", gdb_stdlog); \ | |
1284 | compile_cplus_debug_output (R); \ | |
1285 | fputc_unfiltered ('\n', gdb_stdlog); \ | |
1286 | } \ | |
1287 | ||
1288 | #define GCC_METHOD0(R, N) \ | |
1289 | R gcc_cp_plugin::N () const \ | |
1290 | { \ | |
1291 | if (debug_compile_cplus_types) \ | |
1292 | compile_cplus_debug_output (STRINGIFY (N)); \ | |
1293 | auto result = FORWARD (N); \ | |
1294 | OUTPUT_DEBUG_RESULT (result); \ | |
1295 | return result; \ | |
1296 | } | |
1297 | #define GCC_METHOD1(R, N, A) \ | |
1298 | R gcc_cp_plugin::N (A a) const \ | |
1299 | { \ | |
1300 | if (debug_compile_cplus_types) \ | |
1301 | compile_cplus_debug_output (STRINGIFY (N), a); \ | |
1302 | auto result = FORWARD (N, a); \ | |
1303 | OUTPUT_DEBUG_RESULT (result); \ | |
1304 | return result; \ | |
1305 | } | |
1306 | #define GCC_METHOD2(R, N, A, B) \ | |
1307 | R gcc_cp_plugin::N (A a, B b) const \ | |
1308 | { \ | |
1309 | if (debug_compile_cplus_types) \ | |
1310 | compile_cplus_debug_output (STRINGIFY (N), a, b); \ | |
1311 | auto result = FORWARD (N, a, b); \ | |
1312 | OUTPUT_DEBUG_RESULT (result); \ | |
1313 | return result; \ | |
1314 | } | |
1315 | #define GCC_METHOD3(R, N, A, B, C) \ | |
1316 | R gcc_cp_plugin::N (A a, B b, C c) const \ | |
1317 | { \ | |
1318 | if (debug_compile_cplus_types) \ | |
1319 | compile_cplus_debug_output (STRINGIFY (N), a, b, c); \ | |
1320 | auto result = FORWARD (N, a, b, c); \ | |
1321 | OUTPUT_DEBUG_RESULT (result); \ | |
1322 | return result; \ | |
1323 | } | |
1324 | #define GCC_METHOD4(R, N, A, B, C, D) \ | |
1325 | R gcc_cp_plugin::N (A a, B b, C c, D d) const \ | |
1326 | { \ | |
1327 | if (debug_compile_cplus_types) \ | |
1328 | compile_cplus_debug_output (STRINGIFY (N), a, b, c, d); \ | |
1329 | auto result = FORWARD (N, a, b, c, d); \ | |
1330 | OUTPUT_DEBUG_RESULT (result); \ | |
1331 | return result; \ | |
1332 | } | |
1333 | #define GCC_METHOD5(R, N, A, B, C, D, E) \ | |
1334 | R gcc_cp_plugin::N (A a, B b, C c, D d, E e) const \ | |
1335 | { \ | |
1336 | if (debug_compile_cplus_types) \ | |
1337 | compile_cplus_debug_output (STRINGIFY (N), a, b, c, d, e); \ | |
1338 | auto result = FORWARD (N, a, b, c, d, e); \ | |
1339 | OUTPUT_DEBUG_RESULT (result); \ | |
1340 | return result; \ | |
1341 | } | |
1342 | #define GCC_METHOD7(R, N, A, B, C, D, E, F, G) \ | |
1343 | R gcc_cp_plugin::N (A a, B b, C c, D d, E e, F f, G g) const \ | |
1344 | { \ | |
1345 | if (debug_compile_cplus_types) \ | |
1346 | compile_cplus_debug_output (STRINGIFY (N), a, b, c, d, e, f, g); \ | |
1347 | auto result = FORWARD (N, a, b, c, d, e, f, g); \ | |
1348 | OUTPUT_DEBUG_RESULT (result); \ | |
1349 | return result; \ | |
1350 | } | |
1351 | ||
1352 | #include "gcc-cp-fe.def" | |
1353 | ||
1354 | #undef GCC_METHOD0 | |
1355 | #undef GCC_METHOD1 | |
1356 | #undef GCC_METHOD2 | |
1357 | #undef GCC_METHOD3 | |
1358 | #undef GCC_METHOD4 | |
1359 | #undef GCC_METHOD5 | |
1360 | #undef GCC_METHOD7 | |
1361 | #undef FORWARD | |
1362 | #undef OUTPUT_DEBUG_RESULT | |
1363 | ||
1364 | gcc_expr | |
1365 | gcc_cp_plugin::build_decl (const char *debug_decltype, const char *name, | |
1366 | enum gcc_cp_symbol_kind sym_kind, gcc_type sym_type, | |
1367 | const char *substitution_name, gcc_address address, | |
1368 | const char *filename, unsigned int line_number) | |
1369 | { | |
1370 | if (debug_compile_cplus_types) | |
1371 | fprintf_unfiltered (gdb_stdlog, "<%s> ", debug_decltype); | |
1372 | ||
1373 | return build_decl (name, sym_kind, sym_type, substitution_name, | |
1374 | address, filename, line_number); | |
1375 | } | |
1376 | ||
1377 | gcc_type | |
1378 | gcc_cp_plugin::start_class_type (const char *debug_name, gcc_decl typedecl, | |
1379 | const struct gcc_vbase_array *base_classes, | |
1380 | const char *filename, unsigned int line_number) | |
1381 | { | |
1382 | if (debug_compile_cplus_types) | |
1383 | fprintf_unfiltered (gdb_stdlog, "<%s> ", debug_name); | |
1384 | ||
1385 | return start_class_type (typedecl, base_classes, filename, line_number); | |
1386 | } | |
1387 | ||
1388 | int | |
1389 | gcc_cp_plugin::finish_class_type (const char *debug_name, | |
1390 | unsigned long size_in_bytes) | |
1391 | { | |
1392 | if (debug_compile_cplus_types) | |
1393 | fprintf_unfiltered (gdb_stdlog, "<%s> ", debug_name); | |
1394 | ||
1395 | return finish_class_type (size_in_bytes); | |
1396 | } | |
1397 | ||
1398 | int | |
1399 | gcc_cp_plugin::pop_binding_level (const char *debug_name) | |
1400 | { | |
1401 | if (debug_compile_cplus_types) | |
1402 | fprintf_unfiltered (gdb_stdlog, "<%s> ", debug_name); | |
1403 | ||
1404 | return pop_binding_level (); | |
1405 | } | |
1406 | ||
6c265988 | 1407 | void _initialize_compile_cplus_types (); |
078a0207 KS |
1408 | void |
1409 | _initialize_compile_cplus_types () | |
1410 | { | |
1411 | add_setshow_boolean_cmd ("compile-cplus-types", no_class, | |
1412 | &debug_compile_cplus_types, _("\ | |
1413 | Set debugging of C++ compile type conversion."), _("\ | |
1414 | Show debugging of C++ compile type conversion."), _("\ | |
1415 | When enabled debugging messages are printed during C++ type conversion for\n\ | |
1416 | the compile commands."), | |
1417 | nullptr, | |
1418 | nullptr, | |
1419 | &setdebuglist, | |
1420 | &showdebuglist); | |
1421 | ||
1422 | add_setshow_boolean_cmd ("compile-cplus-scopes", no_class, | |
1423 | &debug_compile_cplus_scopes, _("\ | |
1424 | Set debugging of C++ compile scopes."), _("\ | |
1425 | Show debugging of C++ compile scopes."), _("\ | |
1426 | When enabled debugging messages are printed about definition scopes during\n\ | |
1427 | C++ type conversion for the compile commands."), | |
1428 | nullptr, | |
1429 | nullptr, | |
1430 | &setdebuglist, | |
1431 | &showdebuglist); | |
1432 | } |