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078a0207 KS |
1 | /* Convert types from GDB to GCC |
2 | ||
213516ef | 3 | Copyright (C) 2014-2023 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. */ | |
3bc440a2 | 94 | if (!type->is_declared_class ()) |
078a0207 KS |
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 | ||
5f9c5a63 | 164 | if (bsymbol.symbol->type ()->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. */ | |
f34652de | 181 | internal_error (_("malformed TYPE_NAME during parsing")); |
078a0207 KS |
182 | } |
183 | } | |
184 | } | |
185 | ||
186 | return scope; | |
187 | } | |
188 | ||
189 | /* Compare two scope_components for equality. These are equal if the names | |
190 | of the two components' are the same. */ | |
191 | ||
192 | bool | |
193 | operator== (const scope_component &lhs, const scope_component &rhs) | |
194 | { | |
195 | return lhs.name == rhs.name; | |
196 | } | |
197 | ||
198 | /* Compare two scope_components for inequality. These are not equal if | |
199 | the two components' names are not equal. */ | |
200 | ||
201 | bool | |
202 | operator!= (const scope_component &lhs, const scope_component &rhs) | |
203 | { | |
204 | return lhs.name != rhs.name; | |
205 | } | |
206 | ||
207 | /* Compare two compile_scopes for equality. These are equal if they are both | |
208 | contain the same number of components and each component is equal. */ | |
209 | ||
210 | bool | |
211 | operator== (const compile_scope &lhs, const compile_scope &rhs) | |
212 | { | |
213 | if (lhs.size () != rhs.size ()) | |
214 | return false; | |
215 | ||
216 | for (int i = 0; i < lhs.size (); ++i) | |
217 | { | |
218 | if (lhs[i] != rhs[i]) | |
219 | return false; | |
220 | } | |
221 | ||
222 | return true; | |
223 | } | |
224 | ||
225 | /* Compare two compile_scopes for inequality. These are inequal if they | |
226 | contain unequal number of elements or if any of the components are not | |
227 | the same. */ | |
228 | ||
229 | bool | |
230 | operator!= (const compile_scope &lhs, const compile_scope &rhs) | |
231 | { | |
232 | if (lhs.size () != rhs.size ()) | |
233 | return true; | |
234 | ||
235 | for (int i = 0; i < lhs.size (); ++i) | |
236 | { | |
237 | if (lhs[i] != rhs[i]) | |
238 | return true; | |
239 | } | |
240 | ||
241 | return false; | |
242 | } | |
243 | ||
244 | /* See description in compile-cplus.h. */ | |
245 | ||
246 | void | |
d82b3862 | 247 | compile_cplus_instance::enter_scope (compile_scope &&new_scope) |
078a0207 KS |
248 | { |
249 | bool must_push = m_scopes.empty () || m_scopes.back () != new_scope; | |
250 | ||
251 | new_scope.m_pushed = must_push; | |
252 | ||
253 | /* Save the new scope. */ | |
d82b3862 | 254 | m_scopes.push_back (std::move (new_scope)); |
078a0207 KS |
255 | |
256 | if (must_push) | |
257 | { | |
258 | if (debug_compile_cplus_scopes) | |
fdad7678 | 259 | { |
6cb06a8c TT |
260 | gdb_printf (gdb_stdlog, "entering new scope %s\n", |
261 | host_address_to_string (&m_scopes.back ())); | |
fdad7678 | 262 | } |
078a0207 KS |
263 | |
264 | /* Push the global namespace. */ | |
265 | plugin ().push_namespace (""); | |
266 | ||
267 | /* Push all other namespaces. Note that we do not push the last | |
268 | scope_component -- that's the actual type we are converting. */ | |
269 | std::for_each | |
461464f2 | 270 | (m_scopes.back ().begin (), m_scopes.back ().end () - 1, |
078a0207 KS |
271 | [this] (const scope_component &comp) |
272 | { | |
5f9c5a63 | 273 | gdb_assert (comp.bsymbol.symbol->type ()->code () |
078a0207 KS |
274 | == TYPE_CODE_NAMESPACE); |
275 | ||
276 | const char *ns = (comp.name == CP_ANONYMOUS_NAMESPACE_STR ? nullptr | |
277 | : comp.name.c_str ()); | |
278 | ||
279 | this->plugin ().push_namespace (ns); | |
280 | }); | |
281 | } | |
282 | else | |
283 | { | |
284 | if (debug_compile_cplus_scopes) | |
285 | { | |
6cb06a8c TT |
286 | gdb_printf (gdb_stdlog, "staying in current scope -- " |
287 | "scopes are identical\n"); | |
078a0207 KS |
288 | } |
289 | } | |
290 | } | |
291 | ||
292 | /* See description in compile-cplus.h. */ | |
293 | ||
294 | void | |
295 | compile_cplus_instance::leave_scope () | |
296 | { | |
297 | /* Get the current scope and remove it from the internal list of | |
298 | scopes. */ | |
299 | compile_scope current = m_scopes.back (); | |
300 | ||
301 | m_scopes.pop_back (); | |
302 | ||
303 | if (current.m_pushed) | |
304 | { | |
305 | if (debug_compile_cplus_scopes) | |
a0dc02a6 | 306 | { |
6cb06a8c TT |
307 | gdb_printf (gdb_stdlog, "leaving scope %s\n", |
308 | host_address_to_string (¤t)); | |
a0dc02a6 | 309 | } |
078a0207 KS |
310 | |
311 | /* Pop namespaces. */ | |
312 | std::for_each | |
313 | (current.begin (),current.end () - 1, | |
314 | [this] (const scope_component &comp) { | |
5f9c5a63 | 315 | gdb_assert (comp.bsymbol.symbol->type ()->code () |
078a0207 KS |
316 | == TYPE_CODE_NAMESPACE); |
317 | this->plugin ().pop_binding_level (comp.name.c_str ()); | |
318 | }); | |
319 | ||
320 | /* Pop global namespace. */ | |
321 | plugin ().pop_binding_level (""); | |
322 | } | |
323 | else | |
324 | { | |
325 | if (debug_compile_cplus_scopes) | |
6cb06a8c TT |
326 | gdb_printf (gdb_stdlog, |
327 | "identical scopes -- not leaving scope\n"); | |
078a0207 KS |
328 | } |
329 | } | |
330 | ||
331 | /* See description in compile-cplus.h. */ | |
332 | ||
333 | compile_scope | |
334 | compile_cplus_instance::new_scope (const char *type_name, struct type *type) | |
335 | { | |
336 | /* Break the type name into components. If TYPE was defined in some | |
337 | superclass, we do not process TYPE but process the enclosing type | |
338 | instead. */ | |
339 | compile_scope scope = type_name_to_scope (type_name, block ()); | |
340 | ||
341 | if (!scope.empty ()) | |
342 | { | |
343 | /* Get the name of the last component, which should be the | |
344 | unqualified name of the type to process. */ | |
345 | scope_component &comp = scope.back (); | |
346 | ||
5f9c5a63 | 347 | if (!types_equal (type, comp.bsymbol.symbol->type ()) |
078a0207 KS |
348 | && (m_scopes.empty () |
349 | || (m_scopes.back ().back ().bsymbol.symbol | |
350 | != comp.bsymbol.symbol))) | |
351 | { | |
352 | /* The type is defined inside another class(es). Convert that | |
353 | type instead of defining this type. */ | |
5f9c5a63 | 354 | convert_type (comp.bsymbol.symbol->type ()); |
078a0207 KS |
355 | |
356 | /* If the original type (passed in to us) is defined in a nested | |
357 | class, the previous call will give us that type's gcc_type. | |
358 | Upper layers are expecting to get the original type's | |
359 | gcc_type! */ | |
d82b3862 | 360 | get_cached_type (type, &scope.m_nested_type); |
078a0207 KS |
361 | return scope; |
362 | } | |
363 | } | |
364 | else | |
365 | { | |
7d93a1e0 | 366 | if (type->name () == nullptr) |
078a0207 KS |
367 | { |
368 | /* Anonymous type */ | |
369 | ||
370 | /* We don't have a qualified name for this to look up, but | |
371 | we need a scope. We have to assume, then, that it is the same | |
372 | as the current scope, if any. */ | |
373 | if (!m_scopes.empty ()) | |
374 | { | |
375 | scope = m_scopes.back (); | |
376 | scope.m_pushed = false; | |
377 | } | |
378 | else | |
379 | scope.push_back (scope_component ()); | |
380 | } | |
381 | else | |
382 | { | |
383 | scope_component comp | |
384 | = { | |
dda83cd7 | 385 | decl_name (type->name ()).get (), |
7d93a1e0 | 386 | lookup_symbol (type->name (), block (), VAR_DOMAIN, nullptr) |
078a0207 KS |
387 | }; |
388 | scope.push_back (comp); | |
389 | } | |
390 | } | |
391 | ||
392 | /* There must be at least one component in the compile_scope. */ | |
393 | gdb_assert (scope.size () > 0); | |
394 | return scope; | |
395 | } | |
396 | ||
397 | /* See description in compile-cplus.h. */ | |
398 | ||
399 | gcc_type | |
400 | compile_cplus_instance::convert_reference_base | |
401 | (gcc_type base, enum gcc_cp_ref_qualifiers rquals) | |
402 | { | |
403 | return this->plugin ().build_reference_type (base, rquals); | |
404 | } | |
405 | ||
406 | /* Convert a reference type to its gcc representation. */ | |
407 | ||
408 | static gcc_type | |
409 | compile_cplus_convert_reference (compile_cplus_instance *instance, | |
410 | struct type *type) | |
411 | { | |
27710edb | 412 | gcc_type target = instance->convert_type (type->target_type ()); |
078a0207 KS |
413 | |
414 | enum gcc_cp_ref_qualifiers quals = GCC_CP_REF_QUAL_NONE; | |
78134374 | 415 | switch (type->code ()) |
078a0207 KS |
416 | { |
417 | case TYPE_CODE_REF: | |
418 | quals = GCC_CP_REF_QUAL_LVALUE; | |
419 | break; | |
420 | case TYPE_CODE_RVALUE_REF: | |
421 | quals = GCC_CP_REF_QUAL_RVALUE; | |
422 | break; | |
423 | default: | |
424 | gdb_assert_not_reached ("unexpected type code for reference type"); | |
425 | } | |
426 | ||
427 | return instance->convert_reference_base (target, quals); | |
428 | } | |
429 | ||
430 | /* See description in compile-cplus.h. */ | |
431 | ||
432 | gcc_type | |
433 | compile_cplus_instance::convert_pointer_base(gcc_type target) | |
434 | { | |
435 | return plugin ().build_pointer_type (target); | |
436 | } | |
437 | ||
438 | /* Convert a pointer type to its gcc representation. */ | |
439 | ||
440 | static gcc_type | |
441 | compile_cplus_convert_pointer (compile_cplus_instance *instance, | |
442 | struct type *type) | |
443 | { | |
27710edb | 444 | gcc_type target = instance->convert_type (type->target_type ()); |
078a0207 KS |
445 | |
446 | return instance->convert_pointer_base (target); | |
447 | } | |
448 | ||
449 | /* Convert an array type to its gcc representation. */ | |
450 | ||
451 | static gcc_type | |
452 | compile_cplus_convert_array (compile_cplus_instance *instance, | |
453 | struct type *type) | |
454 | { | |
3d967001 | 455 | struct type *range = type->index_type (); |
27710edb | 456 | gcc_type element_type = instance->convert_type (type->target_type ()); |
078a0207 | 457 | |
9c0fb734 | 458 | if (!range->bounds ()->low.is_constant ()) |
078a0207 KS |
459 | { |
460 | const char *s = _("array type with non-constant" | |
461 | " lower bound is not supported"); | |
462 | ||
463 | return instance->plugin ().error (s); | |
464 | } | |
465 | ||
5537ddd0 | 466 | if (range->bounds ()->low.const_val () != 0) |
078a0207 KS |
467 | { |
468 | const char *s = _("cannot convert array type with " | |
469 | "non-zero lower bound to C"); | |
470 | ||
471 | return instance->plugin ().error (s); | |
472 | } | |
473 | ||
3b606f38 SM |
474 | if (range->bounds ()->high.kind () == PROP_LOCEXPR |
475 | || range->bounds ()->high.kind () == PROP_LOCLIST) | |
078a0207 | 476 | { |
bd63c870 | 477 | if (type->is_vector ()) |
078a0207 KS |
478 | { |
479 | const char *s = _("variably-sized vector type is not supported"); | |
480 | ||
481 | return instance->plugin ().error (s); | |
482 | } | |
483 | ||
484 | std::string upper_bound | |
599088e3 | 485 | = c_get_range_decl_name (&range->bounds ()->high); |
078a0207 KS |
486 | return instance->plugin ().build_vla_array_type (element_type, |
487 | upper_bound.c_str ()); | |
488 | } | |
489 | else | |
490 | { | |
491 | LONGEST low_bound, high_bound, count; | |
492 | ||
584903d3 | 493 | if (!get_array_bounds (type, &low_bound, &high_bound)) |
078a0207 KS |
494 | count = -1; |
495 | else | |
496 | { | |
497 | gdb_assert (low_bound == 0); /* Ensured above. */ | |
498 | count = high_bound + 1; | |
499 | } | |
500 | ||
bd63c870 | 501 | if (type->is_vector ()) |
078a0207 KS |
502 | return instance->plugin ().build_vector_type (element_type, count); |
503 | ||
504 | return instance->plugin ().build_array_type (element_type, count); | |
505 | } | |
506 | } | |
507 | ||
508 | /* Convert a typedef of TYPE. If not GCC_CP_ACCESS_NONE, NESTED_ACCESS | |
509 | will define the accessibility of the typedef definition in its | |
510 | containing class. */ | |
511 | ||
512 | static gcc_type | |
513 | compile_cplus_convert_typedef (compile_cplus_instance *instance, | |
514 | struct type *type, | |
515 | enum gcc_cp_symbol_kind nested_access) | |
516 | { | |
7d93a1e0 | 517 | compile_scope scope = instance->new_scope (type->name (), type); |
078a0207 KS |
518 | |
519 | if (scope.nested_type () != GCC_TYPE_NONE) | |
520 | return scope.nested_type (); | |
521 | ||
522 | gdb::unique_xmalloc_ptr<char> name | |
7d93a1e0 | 523 | = compile_cplus_instance::decl_name (type->name ()); |
078a0207 KS |
524 | |
525 | /* Make sure the scope for this type has been pushed. */ | |
d82b3862 | 526 | instance->enter_scope (std::move (scope)); |
078a0207 KS |
527 | |
528 | /* Convert the typedef's real type. */ | |
529 | gcc_type typedef_type = instance->convert_type (check_typedef (type)); | |
530 | ||
531 | instance->plugin ().build_decl ("typedef", name.get (), | |
532 | GCC_CP_SYMBOL_TYPEDEF | nested_access, | |
533 | typedef_type, 0, 0, nullptr, 0); | |
534 | ||
535 | /* Completed this scope. */ | |
536 | instance->leave_scope (); | |
537 | return typedef_type; | |
538 | } | |
539 | ||
540 | /* Convert types defined in TYPE. */ | |
541 | ||
542 | static void | |
543 | compile_cplus_convert_type_defns (compile_cplus_instance *instance, | |
544 | struct type *type) | |
545 | { | |
546 | int i; | |
547 | enum gcc_cp_symbol_kind accessibility; | |
548 | ||
549 | /* Convert typedefs. */ | |
550 | for (i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i) | |
551 | { | |
552 | if (TYPE_TYPEDEF_FIELD_PROTECTED (type, i)) | |
553 | accessibility = GCC_CP_ACCESS_PROTECTED; | |
554 | else if (TYPE_TYPEDEF_FIELD_PRIVATE (type, i)) | |
555 | accessibility = GCC_CP_ACCESS_PRIVATE; | |
556 | else | |
557 | accessibility = GCC_CP_ACCESS_PUBLIC; | |
558 | instance->convert_type (TYPE_TYPEDEF_FIELD_TYPE (type, i), accessibility); | |
559 | } | |
560 | ||
561 | /* Convert nested types. */ | |
562 | for (i = 0; i < TYPE_NESTED_TYPES_COUNT (type); ++i) | |
563 | { | |
564 | if (TYPE_NESTED_TYPES_FIELD_PROTECTED (type, i)) | |
565 | accessibility = GCC_CP_ACCESS_PROTECTED; | |
566 | else if (TYPE_NESTED_TYPES_FIELD_PRIVATE (type, i)) | |
567 | accessibility = GCC_CP_ACCESS_PRIVATE; | |
568 | else | |
569 | accessibility = GCC_CP_ACCESS_PUBLIC; | |
570 | instance->convert_type (TYPE_NESTED_TYPES_FIELD_TYPE (type, i), | |
571 | accessibility); | |
572 | } | |
573 | } | |
574 | ||
575 | /* Convert data members defined in TYPE, which should be struct/class/union | |
576 | with gcc_type COMP_TYPE. */ | |
577 | ||
578 | static void | |
579 | compile_cplus_convert_struct_or_union_members | |
580 | (compile_cplus_instance *instance, struct type *type, gcc_type comp_type) | |
581 | { | |
1f704f76 | 582 | for (int i = TYPE_N_BASECLASSES (type); i < type->num_fields (); ++i) |
078a0207 | 583 | { |
33d16dd9 | 584 | const char *field_name = type->field (i).name (); |
078a0207 KS |
585 | |
586 | if (TYPE_FIELD_IGNORE (type, i) | |
587 | || TYPE_FIELD_ARTIFICIAL (type, i)) | |
588 | continue; | |
589 | ||
590 | /* GDB records unnamed/anonymous fields with empty string names. */ | |
591 | if (*field_name == '\0') | |
592 | field_name = nullptr; | |
593 | ||
594 | gcc_type field_type | |
940da03e | 595 | = instance->convert_type (type->field (i).type ()); |
078a0207 | 596 | |
c819a338 | 597 | if (type->field (i).is_static ()) |
078a0207 KS |
598 | { |
599 | CORE_ADDR physaddr; | |
600 | ||
2ad53ea1 | 601 | switch (type->field (i).loc_kind ()) |
078a0207 KS |
602 | { |
603 | case FIELD_LOC_KIND_PHYSADDR: | |
604 | { | |
e06c3e11 | 605 | physaddr = type->field (i).loc_physaddr (); |
078a0207 KS |
606 | |
607 | instance->plugin ().build_decl | |
608 | ("field physaddr", field_name, | |
609 | (GCC_CP_SYMBOL_VARIABLE | get_field_access_flag (type, i)), | |
610 | field_type, nullptr, physaddr, nullptr, 0); | |
611 | } | |
612 | break; | |
613 | ||
614 | case FIELD_LOC_KIND_PHYSNAME: | |
615 | { | |
fcbbbd90 | 616 | const char *physname = type->field (i).loc_physname (); |
078a0207 KS |
617 | struct block_symbol sym |
618 | = lookup_symbol (physname, instance->block (), | |
619 | VAR_DOMAIN, nullptr); | |
620 | ||
621 | if (sym.symbol == nullptr) | |
622 | { | |
623 | /* We didn't actually find the symbol. There's little | |
624 | we can do but ignore this member. */ | |
625 | continue; | |
626 | } | |
4206d69e | 627 | const char *filename = sym.symbol->symtab ()->filename; |
5d0027b9 | 628 | unsigned int line = sym.symbol->line (); |
078a0207 | 629 | |
4aeddc50 | 630 | physaddr = sym.symbol->value_address (); |
078a0207 KS |
631 | instance->plugin ().build_decl |
632 | ("field physname", field_name, | |
633 | (GCC_CP_SYMBOL_VARIABLE| get_field_access_flag (type, i)), | |
634 | field_type, nullptr, physaddr, filename, line); | |
635 | } | |
636 | break; | |
637 | ||
638 | default: | |
639 | gdb_assert_not_reached | |
640 | ("unexpected static field location kind"); | |
641 | } | |
642 | } | |
643 | else | |
644 | { | |
645 | unsigned long bitsize = TYPE_FIELD_BITSIZE (type, i); | |
646 | enum gcc_cp_symbol_kind field_flags = GCC_CP_SYMBOL_FIELD | |
647 | | get_field_access_flag (type, i); | |
648 | ||
649 | if (bitsize == 0) | |
df86565b | 650 | bitsize = 8 * type->field (i).type ()->length (); |
078a0207 KS |
651 | |
652 | instance->plugin ().build_field | |
653 | (field_name, field_type, field_flags, bitsize, | |
b610c045 | 654 | type->field (i).loc_bitpos ()); |
078a0207 KS |
655 | } |
656 | } | |
657 | } | |
658 | ||
659 | /* Convert a method type to its gcc representation. */ | |
660 | ||
661 | static gcc_type | |
662 | compile_cplus_convert_method (compile_cplus_instance *instance, | |
663 | struct type *parent_type, | |
664 | struct type *method_type) | |
665 | { | |
666 | /* Get the actual function type of the method, the corresponding class's | |
667 | type and corresponding qualifier flags. */ | |
668 | gcc_type func_type = compile_cplus_convert_func (instance, method_type, true); | |
669 | gcc_type class_type = instance->convert_type (parent_type); | |
04902b09 | 670 | gcc_cp_qualifiers_flags quals = 0; |
078a0207 KS |
671 | |
672 | if (TYPE_CONST (method_type)) | |
673 | quals |= GCC_CP_QUALIFIER_CONST; | |
674 | if (TYPE_VOLATILE (method_type)) | |
675 | quals |= GCC_CP_QUALIFIER_VOLATILE; | |
676 | if (TYPE_RESTRICT (method_type)) | |
677 | quals |= GCC_CP_QUALIFIER_RESTRICT; | |
678 | ||
679 | /* Not yet implemented. */ | |
680 | gcc_cp_ref_qualifiers_flags rquals = GCC_CP_REF_QUAL_NONE; | |
681 | ||
682 | return instance->plugin ().build_method_type | |
04902b09 | 683 | (class_type, func_type, quals.raw (), rquals.raw ()); |
078a0207 KS |
684 | } |
685 | ||
686 | /* Convert a member or method pointer represented by TYPE. */ | |
687 | ||
688 | static gcc_type | |
689 | compile_cplus_convert_memberptr (compile_cplus_instance *instance, | |
690 | struct type *type) | |
691 | { | |
692 | struct type *containing_class = TYPE_SELF_TYPE (type); | |
693 | ||
694 | if (containing_class == nullptr) | |
695 | return GCC_TYPE_NONE; | |
696 | ||
697 | gcc_type class_type = instance->convert_type (containing_class); | |
698 | gcc_type member_type | |
27710edb | 699 | = instance->convert_type (type->target_type ()); |
078a0207 KS |
700 | |
701 | return instance->plugin ().build_pointer_to_member_type | |
702 | (class_type, member_type); | |
703 | } | |
704 | ||
705 | /* Convert all methods defined in TYPE, which should be a class/struct/union | |
706 | with gcc_type CLASS_TYPE. */ | |
707 | ||
708 | static void | |
709 | compile_cplus_convert_struct_or_union_methods (compile_cplus_instance *instance, | |
710 | struct type *type, | |
711 | gcc_type class_type) | |
712 | { | |
713 | for (int i = 0; i < TYPE_NFN_FIELDS (type); ++i) | |
714 | { | |
715 | struct fn_field *methods = TYPE_FN_FIELDLIST1 (type, i); | |
716 | gdb::unique_xmalloc_ptr<char> overloaded_name | |
717 | = compile_cplus_instance::decl_name (TYPE_FN_FIELDLIST_NAME (type, i)); | |
718 | ||
719 | /* Loop through the fieldlist, adding decls to the compiler's | |
720 | representation of the class. */ | |
721 | for (int j = 0; j < TYPE_FN_FIELDLIST_LENGTH (type, i); ++j) | |
722 | { | |
723 | /* Skip artificial methods. */ | |
724 | if (TYPE_FN_FIELD_ARTIFICIAL (methods, j)) | |
725 | continue; | |
726 | ||
727 | gcc_cp_symbol_kind_flags sym_kind = GCC_CP_SYMBOL_FUNCTION; | |
728 | gcc_type method_type; | |
729 | struct block_symbol sym | |
730 | = lookup_symbol (TYPE_FN_FIELD_PHYSNAME (methods, j), | |
731 | instance->block (), VAR_DOMAIN, nullptr); | |
732 | ||
733 | if (sym.symbol == nullptr) | |
734 | { | |
735 | if (TYPE_FN_FIELD_VIRTUAL_P (methods, j)) | |
736 | { | |
737 | /* This is beyond hacky, and is really only a workaround for | |
738 | detecting pure virtual methods. */ | |
739 | method_type = compile_cplus_convert_method | |
740 | (instance, type, TYPE_FN_FIELD_TYPE (methods, j)); | |
741 | ||
742 | instance->plugin ().build_decl | |
743 | ("pure virtual method", overloaded_name.get (), | |
744 | (sym_kind | |
745 | | get_method_access_flag (type, i, j) | |
746 | | GCC_CP_FLAG_VIRTUAL_FUNCTION | |
04902b09 | 747 | | GCC_CP_FLAG_PURE_VIRTUAL_FUNCTION).raw (), |
078a0207 KS |
748 | method_type, nullptr, 0, nullptr, 0); |
749 | continue; | |
750 | } | |
751 | ||
752 | /* This can happen if we have a DW_AT_declaration DIE | |
753 | for the method, but no "definition"-type DIE (with | |
754 | DW_AT_specification referencing the decl DIE), i.e., | |
755 | the compiler has probably optimized the method away. | |
756 | ||
757 | In this case, all we can hope to do is issue a warning | |
758 | to the user letting him know. If the user has not actually | |
759 | requested using this method, things should still work. */ | |
760 | warning (_("Method %s appears to be optimized out.\n" | |
761 | "All references to this method will be undefined."), | |
762 | TYPE_FN_FIELD_PHYSNAME (methods, j)); | |
763 | continue; | |
764 | } | |
765 | ||
4206d69e | 766 | const char *filename = sym.symbol->symtab ()->filename; |
5d0027b9 | 767 | unsigned int line = sym.symbol->line (); |
4b8791e1 | 768 | CORE_ADDR address = sym.symbol->value_block()->start (); |
078a0207 KS |
769 | const char *kind; |
770 | ||
771 | if (TYPE_FN_FIELD_STATIC_P (methods, j)) | |
772 | { | |
773 | kind = "static method"; | |
774 | method_type = compile_cplus_convert_func | |
775 | (instance, TYPE_FN_FIELD_TYPE (methods, j), true); | |
776 | } | |
777 | else | |
778 | { | |
779 | kind = "method"; | |
780 | method_type = (compile_cplus_convert_method | |
781 | (instance, type, TYPE_FN_FIELD_TYPE (methods, j))); | |
782 | } | |
783 | ||
784 | if (TYPE_FN_FIELD_VIRTUAL_P (methods, j)) | |
785 | sym_kind |= GCC_CP_FLAG_VIRTUAL_FUNCTION; | |
786 | ||
787 | instance->plugin ().build_decl | |
788 | (kind, overloaded_name.get (), | |
04902b09 | 789 | (sym_kind | get_method_access_flag (type, i, j)).raw (), |
078a0207 KS |
790 | method_type, nullptr, address, filename, line); |
791 | } | |
792 | } | |
793 | } | |
794 | ||
795 | /* Convert a struct or union type to its gcc representation. If this type | |
796 | was defined in another type, NESTED_ACCESS should indicate the | |
797 | accessibility of this type. */ | |
798 | ||
799 | static gcc_type | |
800 | compile_cplus_convert_struct_or_union (compile_cplus_instance *instance, | |
801 | struct type *type, | |
802 | enum gcc_cp_symbol_kind nested_access) | |
803 | { | |
804 | const char *filename = nullptr; | |
72a8f763 | 805 | unsigned int line = 0; |
078a0207 KS |
806 | |
807 | /* Get the decl name of this type. */ | |
808 | gdb::unique_xmalloc_ptr<char> name | |
7d93a1e0 | 809 | = compile_cplus_instance::decl_name (type->name ()); |
078a0207 KS |
810 | |
811 | /* Create a new scope for TYPE. */ | |
7d93a1e0 | 812 | compile_scope scope = instance->new_scope (type->name (), type); |
078a0207 KS |
813 | |
814 | if (scope.nested_type () != GCC_TYPE_NONE) | |
815 | { | |
816 | /* The type requested was actually defined inside another type, | |
817 | such as a nested class definition. Return that type. */ | |
818 | return scope.nested_type (); | |
819 | } | |
820 | ||
821 | /* Push all scopes. */ | |
d82b3862 | 822 | instance->enter_scope (std::move (scope)); |
078a0207 KS |
823 | |
824 | /* First we create the resulting type and enter it into our hash | |
825 | table. This lets recursive types work. */ | |
826 | ||
827 | gcc_decl resuld; | |
78134374 | 828 | if (type->code () == TYPE_CODE_STRUCT) |
078a0207 | 829 | { |
3bc440a2 | 830 | const char *what = type->is_declared_class () ? "class" : "struct"; |
078a0207 KS |
831 | |
832 | resuld = instance->plugin ().build_decl | |
833 | (what, name.get (), (GCC_CP_SYMBOL_CLASS | nested_access | |
3bc440a2 | 834 | | (type->is_declared_class () |
078a0207 KS |
835 | ? GCC_CP_FLAG_CLASS_NOFLAG |
836 | : GCC_CP_FLAG_CLASS_IS_STRUCT)), | |
837 | 0, nullptr, 0, filename, line); | |
838 | } | |
839 | else | |
840 | { | |
78134374 | 841 | gdb_assert (type->code () == TYPE_CODE_UNION); |
078a0207 KS |
842 | resuld = instance->plugin ().build_decl |
843 | ("union", name.get (), GCC_CP_SYMBOL_UNION | nested_access, | |
844 | 0, nullptr, 0, filename, line); | |
845 | } | |
846 | ||
847 | gcc_type result; | |
78134374 | 848 | if (type->code () == TYPE_CODE_STRUCT) |
078a0207 | 849 | { |
078a0207 | 850 | int num_baseclasses = TYPE_N_BASECLASSES (type); |
ebe824f5 TT |
851 | std::vector<gcc_type> elements (num_baseclasses); |
852 | std::vector<enum gcc_cp_symbol_kind> flags (num_baseclasses); | |
078a0207 | 853 | |
ebe824f5 TT |
854 | struct gcc_vbase_array bases {}; |
855 | bases.elements = elements.data (); | |
856 | bases.flags = flags.data (); | |
857 | bases.n_elements = num_baseclasses; | |
078a0207 | 858 | |
ebe824f5 | 859 | for (int i = 0; i < num_baseclasses; ++i) |
078a0207 | 860 | { |
ebe824f5 TT |
861 | struct type *base_type = TYPE_BASECLASS (type, i); |
862 | ||
863 | bases.flags[i] = (GCC_CP_SYMBOL_BASECLASS | |
864 | | get_field_access_flag (type, i) | |
865 | | (BASETYPE_VIA_VIRTUAL (type, i) | |
866 | ? GCC_CP_FLAG_BASECLASS_VIRTUAL | |
867 | : GCC_CP_FLAG_BASECLASS_NOFLAG)); | |
868 | bases.elements[i] = instance->convert_type (base_type); | |
078a0207 KS |
869 | } |
870 | ||
871 | result = instance->plugin ().start_class_type | |
872 | (name.get (), resuld, &bases, filename, line); | |
078a0207 KS |
873 | } |
874 | else | |
875 | { | |
78134374 | 876 | gdb_assert (type->code () == TYPE_CODE_UNION); |
078a0207 KS |
877 | result = instance->plugin ().start_class_type |
878 | (name.get (), resuld, nullptr, filename, line); | |
879 | } | |
880 | ||
881 | instance->insert_type (type, result); | |
882 | ||
883 | /* Add definitions. */ | |
884 | compile_cplus_convert_type_defns (instance, type); | |
885 | ||
886 | /* Add methods. */ | |
887 | compile_cplus_convert_struct_or_union_methods (instance, type, result); | |
888 | ||
889 | /* Add members. */ | |
890 | compile_cplus_convert_struct_or_union_members (instance, type, result); | |
891 | ||
892 | /* All finished. */ | |
df86565b | 893 | instance->plugin ().finish_class_type (name.get (), type->length ()); |
078a0207 KS |
894 | |
895 | /* Pop all scopes. */ | |
896 | instance->leave_scope (); | |
897 | return result; | |
898 | } | |
899 | ||
900 | /* Convert an enum type to its gcc representation. If this type | |
901 | was defined in another type, NESTED_ACCESS should indicate the | |
902 | accessibility of this type.*/ | |
903 | ||
904 | static gcc_type | |
905 | compile_cplus_convert_enum (compile_cplus_instance *instance, struct type *type, | |
906 | enum gcc_cp_symbol_kind nested_access) | |
907 | { | |
9c056022 | 908 | bool scoped_enum_p = false; |
078a0207 KS |
909 | |
910 | /* Create a new scope for this type. */ | |
7d93a1e0 | 911 | compile_scope scope = instance->new_scope (type->name (), type); |
078a0207 KS |
912 | |
913 | if (scope.nested_type () != GCC_TYPE_NONE) | |
914 | { | |
915 | /* The type requested was actually defined inside another type, | |
916 | such as a nested class definition. Return that type. */ | |
917 | return scope.nested_type (); | |
918 | } | |
919 | ||
920 | gdb::unique_xmalloc_ptr<char> name | |
7d93a1e0 | 921 | = compile_cplus_instance::decl_name (type->name ()); |
078a0207 KS |
922 | |
923 | /* Push all scopes. */ | |
d82b3862 | 924 | instance->enter_scope (std::move (scope)); |
078a0207 KS |
925 | |
926 | gcc_type int_type | |
c6d940a9 | 927 | = instance->plugin ().get_int_type (type->is_unsigned (), |
df86565b | 928 | type->length (), nullptr); |
078a0207 KS |
929 | gcc_type result |
930 | = instance->plugin ().start_enum_type (name.get (), int_type, | |
931 | GCC_CP_SYMBOL_ENUM | nested_access | |
932 | | (scoped_enum_p | |
933 | ? GCC_CP_FLAG_ENUM_SCOPED | |
934 | : GCC_CP_FLAG_ENUM_NOFLAG), | |
935 | nullptr, 0); | |
1f704f76 | 936 | for (int i = 0; i < type->num_fields (); ++i) |
078a0207 KS |
937 | { |
938 | gdb::unique_xmalloc_ptr<char> fname | |
33d16dd9 | 939 | = compile_cplus_instance::decl_name (type->field (i).name ()); |
078a0207 | 940 | |
2ad53ea1 | 941 | if (type->field (i).loc_kind () != FIELD_LOC_KIND_ENUMVAL |
078a0207 KS |
942 | || fname == nullptr) |
943 | continue; | |
944 | ||
945 | instance->plugin ().build_enum_constant (result, fname.get (), | |
970db518 | 946 | type->field (i).loc_enumval ()); |
078a0207 KS |
947 | } |
948 | ||
949 | /* Finish enum definition and pop scopes. */ | |
950 | instance->plugin ().finish_enum_type (result); | |
951 | instance->leave_scope (); | |
952 | return result; | |
953 | } | |
954 | ||
955 | /* Convert a function type to its gcc representation. This function does | |
956 | not deal with function templates. */ | |
957 | ||
958 | static gcc_type | |
959 | compile_cplus_convert_func (compile_cplus_instance *instance, | |
960 | struct type *type, bool strip_artificial) | |
961 | { | |
a409645d | 962 | int is_varargs = type->has_varargs (); |
27710edb | 963 | struct type *target_type = type->target_type (); |
078a0207 KS |
964 | |
965 | /* Functions with no debug info have no return type. Ideally we'd | |
966 | want to fallback to the type of the cast just before the | |
967 | function, like GDB's built-in expression parser, but we don't | |
968 | have access to that type here. For now, fallback to int, like | |
969 | GDB's parser used to do. */ | |
970 | if (target_type == nullptr) | |
971 | { | |
426e5b66 | 972 | target_type = builtin_type (type->arch ())->builtin_int; |
078a0207 KS |
973 | warning (_("function has unknown return type; assuming int")); |
974 | } | |
975 | ||
976 | /* This approach means we can't make self-referential function | |
977 | types. Those are impossible in C, though. */ | |
978 | gcc_type return_type = instance->convert_type (target_type); | |
979 | ||
ebe824f5 | 980 | std::vector<gcc_type> elements (type->num_fields ()); |
1775f8b3 | 981 | struct gcc_type_array array = { (int) type->num_fields (), elements.data () }; |
078a0207 | 982 | int artificials = 0; |
1f704f76 | 983 | for (int i = 0; i < type->num_fields (); ++i) |
078a0207 KS |
984 | { |
985 | if (strip_artificial && TYPE_FIELD_ARTIFICIAL (type, i)) | |
986 | { | |
987 | --array.n_elements; | |
988 | ++artificials; | |
989 | } | |
990 | else | |
991 | { | |
992 | array.elements[i - artificials] | |
940da03e | 993 | = instance->convert_type (type->field (i).type ()); |
078a0207 KS |
994 | } |
995 | } | |
996 | ||
997 | /* We omit setting the argument types to `void' to be a little flexible | |
998 | with some minsyms like printf (compile-cplus.exp has examples). */ | |
999 | gcc_type result = instance->plugin ().build_function_type | |
1000 | (return_type, &array, is_varargs); | |
078a0207 KS |
1001 | return result; |
1002 | } | |
1003 | ||
1004 | /* Convert an integer type to its gcc representation. */ | |
1005 | ||
1006 | static gcc_type | |
1007 | compile_cplus_convert_int (compile_cplus_instance *instance, struct type *type) | |
1008 | { | |
20ce4123 | 1009 | if (type->has_no_signedness ()) |
078a0207 | 1010 | { |
df86565b | 1011 | gdb_assert (type->length () == 1); |
078a0207 KS |
1012 | return instance->plugin ().get_char_type (); |
1013 | } | |
1014 | ||
1015 | return instance->plugin ().get_int_type | |
df86565b | 1016 | (type->is_unsigned (), type->length (), type->name ()); |
078a0207 KS |
1017 | } |
1018 | ||
1019 | /* Convert a floating-point type to its gcc representation. */ | |
1020 | ||
1021 | static gcc_type | |
1022 | compile_cplus_convert_float (compile_cplus_instance *instance, | |
1023 | struct type *type) | |
1024 | { | |
1025 | return instance->plugin ().get_float_type | |
df86565b | 1026 | (type->length (), type->name ()); |
078a0207 KS |
1027 | } |
1028 | ||
1029 | /* Convert the 'void' type to its gcc representation. */ | |
1030 | ||
1031 | static gcc_type | |
1032 | compile_cplus_convert_void (compile_cplus_instance *instance, struct type *type) | |
1033 | { | |
1034 | return instance->plugin ().get_void_type (); | |
1035 | } | |
1036 | ||
1037 | /* Convert a boolean type to its gcc representation. */ | |
1038 | ||
1039 | static gcc_type | |
1040 | compile_cplus_convert_bool (compile_cplus_instance *instance, struct type *type) | |
1041 | { | |
1042 | return instance->plugin ().get_bool_type (); | |
1043 | } | |
1044 | ||
1045 | /* See description in compile-cplus.h. */ | |
1046 | ||
1047 | gcc_type | |
1048 | compile_cplus_instance::convert_qualified_base (gcc_type base, | |
1049 | gcc_cp_qualifiers_flags quals) | |
1050 | { | |
1051 | gcc_type result = base; | |
1052 | ||
a0dc02a6 | 1053 | if (quals != 0) |
04902b09 | 1054 | result = plugin ().build_qualified_type (base, quals.raw ()); |
078a0207 KS |
1055 | |
1056 | return result; | |
1057 | } | |
1058 | ||
1059 | /* See description in compile-cplus.h. */ | |
1060 | ||
1061 | static gcc_type | |
1062 | compile_cplus_convert_qualified (compile_cplus_instance *instance, | |
1063 | struct type *type) | |
1064 | { | |
1065 | struct type *unqual = make_unqualified_type (type); | |
1066 | gcc_cp_qualifiers_flags quals = (enum gcc_cp_qualifiers) 0; | |
1067 | gcc_type unqual_converted = instance->convert_type (unqual); | |
1068 | ||
1069 | if (TYPE_CONST (type)) | |
1070 | quals |= GCC_CP_QUALIFIER_CONST; | |
1071 | if (TYPE_VOLATILE (type)) | |
1072 | quals |= GCC_CP_QUALIFIER_VOLATILE; | |
1073 | if (TYPE_RESTRICT (type)) | |
1074 | quals |= GCC_CP_QUALIFIER_RESTRICT; | |
1075 | ||
1076 | return instance->convert_qualified_base (unqual_converted, quals); | |
1077 | } | |
1078 | ||
1079 | /* Convert a complex type to its gcc representation. */ | |
1080 | ||
1081 | static gcc_type | |
1082 | compile_cplus_convert_complex (compile_cplus_instance *instance, | |
1083 | struct type *type) | |
1084 | { | |
27710edb | 1085 | gcc_type base = instance->convert_type (type->target_type ()); |
078a0207 KS |
1086 | |
1087 | return instance->plugin ().build_complex_type (base); | |
1088 | } | |
1089 | ||
1090 | /* Convert a namespace of TYPE. */ | |
1091 | ||
1092 | static gcc_type | |
1093 | compile_cplus_convert_namespace (compile_cplus_instance *instance, | |
1094 | struct type *type) | |
1095 | { | |
7d93a1e0 | 1096 | compile_scope scope = instance->new_scope (type->name (), type); |
078a0207 | 1097 | gdb::unique_xmalloc_ptr<char> name |
7d93a1e0 | 1098 | = compile_cplus_instance::decl_name (type->name ()); |
078a0207 KS |
1099 | |
1100 | /* Push scope. */ | |
d82b3862 | 1101 | instance->enter_scope (std::move (scope)); |
078a0207 KS |
1102 | |
1103 | /* Convert this namespace. */ | |
1104 | instance->plugin ().push_namespace (name.get ()); | |
1105 | instance->plugin ().pop_binding_level (name.get ()); | |
1106 | ||
1107 | /* Pop scope. */ | |
1108 | instance->leave_scope (); | |
1109 | ||
1110 | /* Namespaces are non-cacheable types. */ | |
1111 | return GCC_TYPE_NONE; | |
1112 | } | |
1113 | ||
1114 | /* A helper function which knows how to convert most types from their | |
1115 | gdb representation to the corresponding gcc form. This examines | |
1116 | the TYPE and dispatches to the appropriate conversion function. It | |
1117 | returns the gcc type. | |
1118 | ||
1119 | If the type was defined in another type, NESTED_ACCESS should indicate the | |
1120 | accessibility of this type. */ | |
1121 | ||
1122 | static gcc_type | |
1123 | convert_type_cplus_basic (compile_cplus_instance *instance, | |
1124 | struct type *type, | |
1125 | enum gcc_cp_symbol_kind nested_access) | |
1126 | { | |
1127 | /* If we are converting a qualified type, first convert the | |
1128 | unqualified type and then apply the qualifiers. */ | |
10242f36 SM |
1129 | if ((type->instance_flags () & (TYPE_INSTANCE_FLAG_CONST |
1130 | | TYPE_INSTANCE_FLAG_VOLATILE | |
1131 | | TYPE_INSTANCE_FLAG_RESTRICT)) != 0) | |
078a0207 KS |
1132 | return compile_cplus_convert_qualified (instance, type); |
1133 | ||
78134374 | 1134 | switch (type->code ()) |
078a0207 KS |
1135 | { |
1136 | case TYPE_CODE_REF: | |
1137 | case TYPE_CODE_RVALUE_REF: | |
1138 | return compile_cplus_convert_reference (instance, type); | |
1139 | ||
1140 | case TYPE_CODE_PTR: | |
1141 | return compile_cplus_convert_pointer (instance, type); | |
1142 | ||
1143 | case TYPE_CODE_ARRAY: | |
1144 | return compile_cplus_convert_array (instance, type); | |
1145 | ||
1146 | case TYPE_CODE_STRUCT: | |
1147 | case TYPE_CODE_UNION: | |
1148 | return | |
1149 | compile_cplus_convert_struct_or_union (instance, type, nested_access); | |
1150 | ||
1151 | case TYPE_CODE_ENUM: | |
1152 | return compile_cplus_convert_enum (instance, type, nested_access); | |
1153 | ||
1154 | case TYPE_CODE_FUNC: | |
1155 | return compile_cplus_convert_func (instance, type, false); | |
1156 | ||
1157 | case TYPE_CODE_METHOD: | |
1158 | return | |
1159 | compile_cplus_convert_method (instance, TYPE_SELF_TYPE (type), type); | |
1160 | ||
1161 | case TYPE_CODE_MEMBERPTR: | |
1162 | case TYPE_CODE_METHODPTR: | |
1163 | return compile_cplus_convert_memberptr (instance, type); | |
1164 | break; | |
1165 | ||
1166 | case TYPE_CODE_INT: | |
1167 | return compile_cplus_convert_int (instance, type); | |
1168 | ||
1169 | case TYPE_CODE_FLT: | |
1170 | return compile_cplus_convert_float (instance, type); | |
1171 | ||
1172 | case TYPE_CODE_VOID: | |
1173 | return compile_cplus_convert_void (instance, type); | |
1174 | ||
1175 | case TYPE_CODE_BOOL: | |
1176 | return compile_cplus_convert_bool (instance, type); | |
1177 | ||
1178 | case TYPE_CODE_COMPLEX: | |
1179 | return compile_cplus_convert_complex (instance, type); | |
1180 | ||
1181 | case TYPE_CODE_NAMESPACE: | |
1182 | return compile_cplus_convert_namespace (instance, type); | |
1183 | ||
1184 | case TYPE_CODE_TYPEDEF: | |
1185 | return compile_cplus_convert_typedef (instance, type, nested_access); | |
1186 | ||
1187 | default: | |
1188 | break; | |
1189 | } | |
1190 | ||
1191 | std::string s = string_printf (_("unhandled TYPE_CODE %d"), | |
78134374 | 1192 | type->code ()); |
078a0207 KS |
1193 | |
1194 | return instance->plugin ().error (s.c_str ()); | |
1195 | } | |
1196 | ||
1197 | gcc_type | |
1198 | compile_cplus_instance::convert_type (struct type *type, | |
1199 | enum gcc_cp_symbol_kind nested_access) | |
1200 | { | |
1201 | /* Check if TYPE has already been converted. */ | |
1202 | gcc_type result; | |
d82b3862 | 1203 | if (get_cached_type (type, &result)) |
078a0207 KS |
1204 | return result; |
1205 | ||
1206 | /* It is the first time this type has been seen -- convert it | |
1207 | and cache it, if appropriate.. */ | |
1208 | result = convert_type_cplus_basic (this, type, nested_access); | |
1209 | if (result != GCC_TYPE_NONE) | |
1210 | insert_type (type, result); | |
1211 | return result; | |
1212 | } | |
1213 | ||
1214 | void | |
1215 | compile_cplus_instance::gcc_cplus_enter_scope | |
1216 | (void *datum, struct gcc_cp_context *gcc_context) | |
1217 | { | |
1218 | } | |
1219 | ||
1220 | void | |
1221 | compile_cplus_instance::gcc_cplus_leave_scope | |
1222 | (void *datum, struct gcc_cp_context *gcc_context) | |
1223 | { | |
1224 | } | |
1225 | ||
1226 | \f | |
1227 | ||
1228 | /* Plug-in forwards. */ | |
1229 | ||
1230 | /* C++ plug-in wrapper. */ | |
1231 | ||
1232 | /* A result printer for plug-in calls that return a gcc_type or | |
1233 | gcc_decl. */ | |
1234 | ||
1235 | static void | |
5c889512 | 1236 | compile_cplus_debug_output_1 (ULONGEST arg) |
078a0207 | 1237 | { |
6cb06a8c | 1238 | gdb_printf (gdb_stdlog, "%s", pulongest (arg)); |
078a0207 KS |
1239 | } |
1240 | ||
1241 | static void | |
1242 | compile_cplus_debug_output_1 (const char *arg) | |
1243 | { | |
1244 | if (arg == nullptr) | |
0426ad51 | 1245 | gdb_puts ("NULL", gdb_stdlog); |
078a0207 | 1246 | else |
0426ad51 | 1247 | gdb_puts (arg, gdb_stdlog); |
078a0207 KS |
1248 | } |
1249 | ||
1250 | static void | |
1251 | compile_cplus_debug_output () | |
1252 | { | |
1253 | } | |
1254 | ||
1255 | template <typename T> | |
1256 | static void | |
1257 | compile_cplus_debug_output_1 (const T *arg) | |
1258 | { | |
1259 | } | |
1260 | ||
1261 | template <typename T, typename... Targs> | |
1262 | static void | |
1263 | compile_cplus_debug_output (T arg, Targs... Args) | |
1264 | { | |
1265 | compile_cplus_debug_output_1 (arg); | |
a11ac3b3 | 1266 | gdb_putc (' ', gdb_stdlog); |
078a0207 KS |
1267 | compile_cplus_debug_output (Args...); |
1268 | } | |
1269 | ||
1270 | #define FORWARD(OP,...) m_context->cp_ops->OP(m_context, ##__VA_ARGS__) | |
1271 | #define OUTPUT_DEBUG_RESULT(R) \ | |
1272 | if (debug_compile_cplus_types) \ | |
1273 | { \ | |
0426ad51 | 1274 | gdb_puts (": ", gdb_stdlog); \ |
078a0207 | 1275 | compile_cplus_debug_output (R); \ |
a11ac3b3 | 1276 | gdb_putc ('\n', gdb_stdlog); \ |
078a0207 KS |
1277 | } \ |
1278 | ||
1279 | #define GCC_METHOD0(R, N) \ | |
1280 | R gcc_cp_plugin::N () const \ | |
1281 | { \ | |
1282 | if (debug_compile_cplus_types) \ | |
1283 | compile_cplus_debug_output (STRINGIFY (N)); \ | |
1284 | auto result = FORWARD (N); \ | |
1285 | OUTPUT_DEBUG_RESULT (result); \ | |
1286 | return result; \ | |
1287 | } | |
1288 | #define GCC_METHOD1(R, N, A) \ | |
1289 | R gcc_cp_plugin::N (A a) const \ | |
1290 | { \ | |
1291 | if (debug_compile_cplus_types) \ | |
1292 | compile_cplus_debug_output (STRINGIFY (N), a); \ | |
1293 | auto result = FORWARD (N, a); \ | |
1294 | OUTPUT_DEBUG_RESULT (result); \ | |
1295 | return result; \ | |
1296 | } | |
1297 | #define GCC_METHOD2(R, N, A, B) \ | |
1298 | R gcc_cp_plugin::N (A a, B b) const \ | |
1299 | { \ | |
1300 | if (debug_compile_cplus_types) \ | |
1301 | compile_cplus_debug_output (STRINGIFY (N), a, b); \ | |
1302 | auto result = FORWARD (N, a, b); \ | |
1303 | OUTPUT_DEBUG_RESULT (result); \ | |
1304 | return result; \ | |
1305 | } | |
1306 | #define GCC_METHOD3(R, N, A, B, C) \ | |
1307 | R gcc_cp_plugin::N (A a, B b, C c) const \ | |
1308 | { \ | |
1309 | if (debug_compile_cplus_types) \ | |
1310 | compile_cplus_debug_output (STRINGIFY (N), a, b, c); \ | |
1311 | auto result = FORWARD (N, a, b, c); \ | |
1312 | OUTPUT_DEBUG_RESULT (result); \ | |
1313 | return result; \ | |
1314 | } | |
1315 | #define GCC_METHOD4(R, N, A, B, C, D) \ | |
1316 | R gcc_cp_plugin::N (A a, B b, C c, D d) const \ | |
1317 | { \ | |
1318 | if (debug_compile_cplus_types) \ | |
1319 | compile_cplus_debug_output (STRINGIFY (N), a, b, c, d); \ | |
1320 | auto result = FORWARD (N, a, b, c, d); \ | |
1321 | OUTPUT_DEBUG_RESULT (result); \ | |
1322 | return result; \ | |
1323 | } | |
1324 | #define GCC_METHOD5(R, N, A, B, C, D, E) \ | |
1325 | R gcc_cp_plugin::N (A a, B b, C c, D d, E e) const \ | |
1326 | { \ | |
1327 | if (debug_compile_cplus_types) \ | |
1328 | compile_cplus_debug_output (STRINGIFY (N), a, b, c, d, e); \ | |
1329 | auto result = FORWARD (N, a, b, c, d, e); \ | |
1330 | OUTPUT_DEBUG_RESULT (result); \ | |
1331 | return result; \ | |
1332 | } | |
1333 | #define GCC_METHOD7(R, N, A, B, C, D, E, F, G) \ | |
1334 | R gcc_cp_plugin::N (A a, B b, C c, D d, E e, F f, G g) const \ | |
1335 | { \ | |
1336 | if (debug_compile_cplus_types) \ | |
1337 | compile_cplus_debug_output (STRINGIFY (N), a, b, c, d, e, f, g); \ | |
1338 | auto result = FORWARD (N, a, b, c, d, e, f, g); \ | |
1339 | OUTPUT_DEBUG_RESULT (result); \ | |
1340 | return result; \ | |
1341 | } | |
1342 | ||
1343 | #include "gcc-cp-fe.def" | |
1344 | ||
1345 | #undef GCC_METHOD0 | |
1346 | #undef GCC_METHOD1 | |
1347 | #undef GCC_METHOD2 | |
1348 | #undef GCC_METHOD3 | |
1349 | #undef GCC_METHOD4 | |
1350 | #undef GCC_METHOD5 | |
1351 | #undef GCC_METHOD7 | |
1352 | #undef FORWARD | |
1353 | #undef OUTPUT_DEBUG_RESULT | |
1354 | ||
1355 | gcc_expr | |
1356 | gcc_cp_plugin::build_decl (const char *debug_decltype, const char *name, | |
1357 | enum gcc_cp_symbol_kind sym_kind, gcc_type sym_type, | |
1358 | const char *substitution_name, gcc_address address, | |
1359 | const char *filename, unsigned int line_number) | |
1360 | { | |
1361 | if (debug_compile_cplus_types) | |
6cb06a8c | 1362 | gdb_printf (gdb_stdlog, "<%s> ", debug_decltype); |
078a0207 KS |
1363 | |
1364 | return build_decl (name, sym_kind, sym_type, substitution_name, | |
1365 | address, filename, line_number); | |
1366 | } | |
1367 | ||
1368 | gcc_type | |
1369 | gcc_cp_plugin::start_class_type (const char *debug_name, gcc_decl typedecl, | |
1370 | const struct gcc_vbase_array *base_classes, | |
1371 | const char *filename, unsigned int line_number) | |
1372 | { | |
1373 | if (debug_compile_cplus_types) | |
6cb06a8c | 1374 | gdb_printf (gdb_stdlog, "<%s> ", debug_name); |
078a0207 KS |
1375 | |
1376 | return start_class_type (typedecl, base_classes, filename, line_number); | |
1377 | } | |
1378 | ||
1379 | int | |
1380 | gcc_cp_plugin::finish_class_type (const char *debug_name, | |
1381 | unsigned long size_in_bytes) | |
1382 | { | |
1383 | if (debug_compile_cplus_types) | |
6cb06a8c | 1384 | gdb_printf (gdb_stdlog, "<%s> ", debug_name); |
078a0207 KS |
1385 | |
1386 | return finish_class_type (size_in_bytes); | |
1387 | } | |
1388 | ||
1389 | int | |
1390 | gcc_cp_plugin::pop_binding_level (const char *debug_name) | |
1391 | { | |
1392 | if (debug_compile_cplus_types) | |
6cb06a8c | 1393 | gdb_printf (gdb_stdlog, "<%s> ", debug_name); |
078a0207 KS |
1394 | |
1395 | return pop_binding_level (); | |
1396 | } | |
1397 | ||
6c265988 | 1398 | void _initialize_compile_cplus_types (); |
078a0207 KS |
1399 | void |
1400 | _initialize_compile_cplus_types () | |
1401 | { | |
1402 | add_setshow_boolean_cmd ("compile-cplus-types", no_class, | |
1403 | &debug_compile_cplus_types, _("\ | |
1404 | Set debugging of C++ compile type conversion."), _("\ | |
1405 | Show debugging of C++ compile type conversion."), _("\ | |
1406 | When enabled debugging messages are printed during C++ type conversion for\n\ | |
1407 | the compile commands."), | |
1408 | nullptr, | |
1409 | nullptr, | |
1410 | &setdebuglist, | |
1411 | &showdebuglist); | |
1412 | ||
1413 | add_setshow_boolean_cmd ("compile-cplus-scopes", no_class, | |
1414 | &debug_compile_cplus_scopes, _("\ | |
1415 | Set debugging of C++ compile scopes."), _("\ | |
1416 | Show debugging of C++ compile scopes."), _("\ | |
1417 | When enabled debugging messages are printed about definition scopes during\n\ | |
1418 | C++ type conversion for the compile commands."), | |
1419 | nullptr, | |
1420 | nullptr, | |
1421 | &setdebuglist, | |
1422 | &showdebuglist); | |
1423 | } |