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078a0207 KS |
1 | /* Convert types from GDB to GCC |
2 | ||
42a4f53d | 3 | Copyright (C) 2014-2019 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" | |
22 | #include "common/preprocessor.h" | |
23 | #include "gdbtypes.h" | |
24 | #include "compile-internal.h" | |
25 | #include "compile-cplus.h" | |
26 | #include "gdb_assert.h" | |
27 | #include "symtab.h" | |
28 | #include "source.h" | |
29 | #include "cp-support.h" | |
30 | #include "cp-abi.h" | |
31 | #include "symtab.h" | |
32 | #include "objfiles.h" | |
33 | #include "block.h" | |
34 | #include "gdbcmd.h" | |
35 | #include "c-lang.h" | |
36 | #include "compile-c.h" /* Included for c_get_range_decl_name | |
37 | et al. */ | |
38 | #include <algorithm> | |
39 | ||
40 | /* Default compile flags for C++. */ | |
41 | ||
42 | const char *compile_cplus_instance::m_default_cflags = "-std=gnu++11"; | |
43 | ||
44 | /* Flag to enable internal debugging. */ | |
45 | ||
46 | static int debug_compile_cplus_types = 0; | |
47 | ||
48 | /* Flag to enable internal scope switching debugging. */ | |
49 | ||
50 | static int debug_compile_cplus_scopes = 0; | |
51 | ||
52 | /* Forward declarations. */ | |
53 | ||
54 | static gcc_type compile_cplus_convert_func (compile_cplus_instance *instance, | |
55 | struct type *type, | |
56 | bool strip_artificial); | |
57 | ||
58 | /* See description in compile-cplus.h. */ | |
59 | ||
60 | gdb::unique_xmalloc_ptr<char> | |
61 | compile_cplus_instance::decl_name (const char *natural) | |
62 | { | |
63 | if (natural == nullptr) | |
64 | return nullptr; | |
65 | ||
06d3e5b0 | 66 | gdb::unique_xmalloc_ptr<char> name = cp_func_name (natural); |
078a0207 | 67 | if (name != nullptr) |
06d3e5b0 | 68 | return name; |
078a0207 KS |
69 | |
70 | return gdb::unique_xmalloc_ptr<char> (xstrdup (natural)); | |
71 | } | |
72 | ||
73 | /* Get the access flag for the NUM'th field of TYPE. */ | |
74 | ||
75 | static enum gcc_cp_symbol_kind | |
76 | get_field_access_flag (const struct type *type, int num) | |
77 | { | |
78 | if (TYPE_FIELD_PROTECTED (type, num)) | |
79 | return GCC_CP_ACCESS_PROTECTED; | |
80 | else if (TYPE_FIELD_PRIVATE (type, num)) | |
81 | return GCC_CP_ACCESS_PRIVATE; | |
82 | ||
83 | /* GDB assumes everything else is public. */ | |
84 | return GCC_CP_ACCESS_PUBLIC; | |
85 | } | |
86 | ||
87 | /* Get the access flag for the NUM'th method of TYPE's FNI'th | |
88 | fieldlist. */ | |
89 | ||
90 | enum gcc_cp_symbol_kind | |
91 | get_method_access_flag (const struct type *type, int fni, int num) | |
92 | { | |
93 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_STRUCT); | |
94 | ||
95 | /* If this type was not declared a class, everything is public. */ | |
96 | if (!TYPE_DECLARED_CLASS (type)) | |
97 | return GCC_CP_ACCESS_PUBLIC; | |
98 | ||
99 | /* Otherwise, read accessibility from the fn_field. */ | |
100 | const struct fn_field *methods = TYPE_FN_FIELDLIST1 (type, fni); | |
101 | if (TYPE_FN_FIELD_PROTECTED (methods, num)) | |
102 | return GCC_CP_ACCESS_PROTECTED; | |
103 | else if (TYPE_FN_FIELD_PRIVATE (methods, num)) | |
104 | return GCC_CP_ACCESS_PRIVATE; | |
105 | else | |
106 | return GCC_CP_ACCESS_PUBLIC; | |
107 | } | |
108 | ||
109 | /* A useful debugging function to output the scope SCOPE to stdout. */ | |
110 | ||
111 | static void __attribute__ ((used)) | |
112 | debug_print_scope (const compile_scope &scope) | |
113 | { | |
114 | for (const auto &comp: scope) | |
115 | { | |
116 | const char *symbol = (comp.bsymbol.symbol != nullptr | |
117 | ? SYMBOL_NATURAL_NAME (comp.bsymbol.symbol) | |
118 | : "<none>"); | |
119 | ||
120 | printf_unfiltered ("\tname = %s, symbol = %s\n", comp.name.c_str (), | |
121 | symbol); | |
122 | } | |
123 | } | |
124 | ||
125 | /* See description in compile-cplus.h. */ | |
126 | ||
127 | compile_scope | |
128 | type_name_to_scope (const char *type_name, const struct block *block) | |
129 | { | |
130 | compile_scope scope; | |
131 | ||
132 | if (type_name == nullptr) | |
133 | { | |
134 | /* An anonymous type. We cannot really do much here. We simply cannot | |
135 | look up anonymous types easily/at all. */ | |
136 | return scope; | |
137 | } | |
138 | ||
139 | const char *p = type_name; | |
140 | std::string lookup_name; | |
141 | ||
142 | while (*p != '\0') | |
143 | { | |
144 | /* Create a string token of the first component of TYPE_NAME. */ | |
145 | int len = cp_find_first_component (p); | |
146 | std::string s (p, len); | |
147 | ||
148 | /* Advance past the last token. */ | |
149 | p += len; | |
150 | ||
151 | /* Look up the symbol and decide when to stop. */ | |
152 | if (!lookup_name.empty ()) | |
153 | lookup_name += "::"; | |
154 | lookup_name += s; | |
155 | ||
156 | /* Look up the resulting name. */ | |
157 | struct block_symbol bsymbol | |
158 | = lookup_symbol (lookup_name.c_str (), block, VAR_DOMAIN, nullptr); | |
159 | ||
160 | if (bsymbol.symbol != nullptr) | |
161 | { | |
162 | scope_component comp = {s, bsymbol}; | |
163 | ||
164 | scope.push_back (comp); | |
165 | ||
166 | if (TYPE_CODE (SYMBOL_TYPE (bsymbol.symbol)) != TYPE_CODE_NAMESPACE) | |
167 | { | |
168 | /* We're done. */ | |
169 | break; | |
170 | } | |
171 | } | |
172 | ||
173 | if (*p == ':') | |
174 | { | |
175 | ++p; | |
176 | if (*p == ':') | |
177 | ++p; | |
178 | else | |
179 | { | |
180 | /* This shouldn't happen since we are not attempting to | |
181 | loop over user input. This name is generated by GDB | |
182 | from debug info. */ | |
183 | internal_error (__FILE__, __LINE__, | |
184 | _("malformed TYPE_NAME during parsing")); | |
185 | } | |
186 | } | |
187 | } | |
188 | ||
189 | return scope; | |
190 | } | |
191 | ||
192 | /* Compare two scope_components for equality. These are equal if the names | |
193 | of the two components' are the same. */ | |
194 | ||
195 | bool | |
196 | operator== (const scope_component &lhs, const scope_component &rhs) | |
197 | { | |
198 | return lhs.name == rhs.name; | |
199 | } | |
200 | ||
201 | /* Compare two scope_components for inequality. These are not equal if | |
202 | the two components' names are not equal. */ | |
203 | ||
204 | bool | |
205 | operator!= (const scope_component &lhs, const scope_component &rhs) | |
206 | { | |
207 | return lhs.name != rhs.name; | |
208 | } | |
209 | ||
210 | /* Compare two compile_scopes for equality. These are equal if they are both | |
211 | contain the same number of components and each component is equal. */ | |
212 | ||
213 | bool | |
214 | operator== (const compile_scope &lhs, const compile_scope &rhs) | |
215 | { | |
216 | if (lhs.size () != rhs.size ()) | |
217 | return false; | |
218 | ||
219 | for (int i = 0; i < lhs.size (); ++i) | |
220 | { | |
221 | if (lhs[i] != rhs[i]) | |
222 | return false; | |
223 | } | |
224 | ||
225 | return true; | |
226 | } | |
227 | ||
228 | /* Compare two compile_scopes for inequality. These are inequal if they | |
229 | contain unequal number of elements or if any of the components are not | |
230 | the same. */ | |
231 | ||
232 | bool | |
233 | operator!= (const compile_scope &lhs, const compile_scope &rhs) | |
234 | { | |
235 | if (lhs.size () != rhs.size ()) | |
236 | return true; | |
237 | ||
238 | for (int i = 0; i < lhs.size (); ++i) | |
239 | { | |
240 | if (lhs[i] != rhs[i]) | |
241 | return true; | |
242 | } | |
243 | ||
244 | return false; | |
245 | } | |
246 | ||
247 | /* See description in compile-cplus.h. */ | |
248 | ||
249 | void | |
d82b3862 | 250 | compile_cplus_instance::enter_scope (compile_scope &&new_scope) |
078a0207 KS |
251 | { |
252 | bool must_push = m_scopes.empty () || m_scopes.back () != new_scope; | |
253 | ||
254 | new_scope.m_pushed = must_push; | |
255 | ||
256 | /* Save the new scope. */ | |
d82b3862 | 257 | m_scopes.push_back (std::move (new_scope)); |
078a0207 KS |
258 | |
259 | if (must_push) | |
260 | { | |
261 | if (debug_compile_cplus_scopes) | |
fdad7678 KS |
262 | { |
263 | fprintf_unfiltered (gdb_stdlog, "entering new scope %s\n", | |
461464f2 | 264 | host_address_to_string (&m_scopes.back ())); |
fdad7678 | 265 | } |
078a0207 KS |
266 | |
267 | /* Push the global namespace. */ | |
268 | plugin ().push_namespace (""); | |
269 | ||
270 | /* Push all other namespaces. Note that we do not push the last | |
271 | scope_component -- that's the actual type we are converting. */ | |
272 | std::for_each | |
461464f2 | 273 | (m_scopes.back ().begin (), m_scopes.back ().end () - 1, |
078a0207 KS |
274 | [this] (const scope_component &comp) |
275 | { | |
276 | gdb_assert (TYPE_CODE (SYMBOL_TYPE (comp.bsymbol.symbol)) | |
277 | == TYPE_CODE_NAMESPACE); | |
278 | ||
279 | const char *ns = (comp.name == CP_ANONYMOUS_NAMESPACE_STR ? nullptr | |
280 | : comp.name.c_str ()); | |
281 | ||
282 | this->plugin ().push_namespace (ns); | |
283 | }); | |
284 | } | |
285 | else | |
286 | { | |
287 | if (debug_compile_cplus_scopes) | |
288 | { | |
289 | fprintf_unfiltered (gdb_stdlog, "staying in current scope -- " | |
290 | "scopes are identical\n"); | |
291 | } | |
292 | } | |
293 | } | |
294 | ||
295 | /* See description in compile-cplus.h. */ | |
296 | ||
297 | void | |
298 | compile_cplus_instance::leave_scope () | |
299 | { | |
300 | /* Get the current scope and remove it from the internal list of | |
301 | scopes. */ | |
302 | compile_scope current = m_scopes.back (); | |
303 | ||
304 | m_scopes.pop_back (); | |
305 | ||
306 | if (current.m_pushed) | |
307 | { | |
308 | if (debug_compile_cplus_scopes) | |
a0dc02a6 SM |
309 | { |
310 | fprintf_unfiltered (gdb_stdlog, "leaving scope %s\n", | |
311 | host_address_to_string (¤t)); | |
312 | } | |
078a0207 KS |
313 | |
314 | /* Pop namespaces. */ | |
315 | std::for_each | |
316 | (current.begin (),current.end () - 1, | |
317 | [this] (const scope_component &comp) { | |
318 | gdb_assert (TYPE_CODE (SYMBOL_TYPE (comp.bsymbol.symbol)) | |
319 | == TYPE_CODE_NAMESPACE); | |
320 | this->plugin ().pop_binding_level (comp.name.c_str ()); | |
321 | }); | |
322 | ||
323 | /* Pop global namespace. */ | |
324 | plugin ().pop_binding_level (""); | |
325 | } | |
326 | else | |
327 | { | |
328 | if (debug_compile_cplus_scopes) | |
329 | fprintf_unfiltered (gdb_stdlog, | |
330 | "identical scopes -- not leaving scope\n"); | |
331 | } | |
332 | } | |
333 | ||
334 | /* See description in compile-cplus.h. */ | |
335 | ||
336 | compile_scope | |
337 | compile_cplus_instance::new_scope (const char *type_name, struct type *type) | |
338 | { | |
339 | /* Break the type name into components. If TYPE was defined in some | |
340 | superclass, we do not process TYPE but process the enclosing type | |
341 | instead. */ | |
342 | compile_scope scope = type_name_to_scope (type_name, block ()); | |
343 | ||
344 | if (!scope.empty ()) | |
345 | { | |
346 | /* Get the name of the last component, which should be the | |
347 | unqualified name of the type to process. */ | |
348 | scope_component &comp = scope.back (); | |
349 | ||
350 | if (!types_equal (type, SYMBOL_TYPE (comp.bsymbol.symbol)) | |
351 | && (m_scopes.empty () | |
352 | || (m_scopes.back ().back ().bsymbol.symbol | |
353 | != comp.bsymbol.symbol))) | |
354 | { | |
355 | /* The type is defined inside another class(es). Convert that | |
356 | type instead of defining this type. */ | |
357 | convert_type (SYMBOL_TYPE (comp.bsymbol.symbol)); | |
358 | ||
359 | /* If the original type (passed in to us) is defined in a nested | |
360 | class, the previous call will give us that type's gcc_type. | |
361 | Upper layers are expecting to get the original type's | |
362 | gcc_type! */ | |
d82b3862 | 363 | get_cached_type (type, &scope.m_nested_type); |
078a0207 KS |
364 | return scope; |
365 | } | |
366 | } | |
367 | else | |
368 | { | |
369 | if (TYPE_NAME (type) == nullptr) | |
370 | { | |
371 | /* Anonymous type */ | |
372 | ||
373 | /* We don't have a qualified name for this to look up, but | |
374 | we need a scope. We have to assume, then, that it is the same | |
375 | as the current scope, if any. */ | |
376 | if (!m_scopes.empty ()) | |
377 | { | |
378 | scope = m_scopes.back (); | |
379 | scope.m_pushed = false; | |
380 | } | |
381 | else | |
382 | scope.push_back (scope_component ()); | |
383 | } | |
384 | else | |
385 | { | |
386 | scope_component comp | |
387 | = { | |
388 | decl_name (TYPE_NAME (type)).get (), | |
389 | lookup_symbol (TYPE_NAME (type), block (), VAR_DOMAIN, nullptr) | |
390 | }; | |
391 | scope.push_back (comp); | |
392 | } | |
393 | } | |
394 | ||
395 | /* There must be at least one component in the compile_scope. */ | |
396 | gdb_assert (scope.size () > 0); | |
397 | return scope; | |
398 | } | |
399 | ||
400 | /* See description in compile-cplus.h. */ | |
401 | ||
402 | gcc_type | |
403 | compile_cplus_instance::convert_reference_base | |
404 | (gcc_type base, enum gcc_cp_ref_qualifiers rquals) | |
405 | { | |
406 | return this->plugin ().build_reference_type (base, rquals); | |
407 | } | |
408 | ||
409 | /* Convert a reference type to its gcc representation. */ | |
410 | ||
411 | static gcc_type | |
412 | compile_cplus_convert_reference (compile_cplus_instance *instance, | |
413 | struct type *type) | |
414 | { | |
415 | gcc_type target = instance->convert_type (TYPE_TARGET_TYPE (type)); | |
416 | ||
417 | enum gcc_cp_ref_qualifiers quals = GCC_CP_REF_QUAL_NONE; | |
418 | switch (TYPE_CODE (type)) | |
419 | { | |
420 | case TYPE_CODE_REF: | |
421 | quals = GCC_CP_REF_QUAL_LVALUE; | |
422 | break; | |
423 | case TYPE_CODE_RVALUE_REF: | |
424 | quals = GCC_CP_REF_QUAL_RVALUE; | |
425 | break; | |
426 | default: | |
427 | gdb_assert_not_reached ("unexpected type code for reference type"); | |
428 | } | |
429 | ||
430 | return instance->convert_reference_base (target, quals); | |
431 | } | |
432 | ||
433 | /* See description in compile-cplus.h. */ | |
434 | ||
435 | gcc_type | |
436 | compile_cplus_instance::convert_pointer_base(gcc_type target) | |
437 | { | |
438 | return plugin ().build_pointer_type (target); | |
439 | } | |
440 | ||
441 | /* Convert a pointer type to its gcc representation. */ | |
442 | ||
443 | static gcc_type | |
444 | compile_cplus_convert_pointer (compile_cplus_instance *instance, | |
445 | struct type *type) | |
446 | { | |
447 | gcc_type target = instance->convert_type (TYPE_TARGET_TYPE (type)); | |
448 | ||
449 | return instance->convert_pointer_base (target); | |
450 | } | |
451 | ||
452 | /* Convert an array type to its gcc representation. */ | |
453 | ||
454 | static gcc_type | |
455 | compile_cplus_convert_array (compile_cplus_instance *instance, | |
456 | struct type *type) | |
457 | { | |
458 | struct type *range = TYPE_INDEX_TYPE (type); | |
459 | gcc_type element_type = instance->convert_type (TYPE_TARGET_TYPE (type)); | |
460 | ||
461 | if (TYPE_LOW_BOUND_KIND (range) != PROP_CONST) | |
462 | { | |
463 | const char *s = _("array type with non-constant" | |
464 | " lower bound is not supported"); | |
465 | ||
466 | return instance->plugin ().error (s); | |
467 | } | |
468 | ||
469 | if (TYPE_LOW_BOUND (range) != 0) | |
470 | { | |
471 | const char *s = _("cannot convert array type with " | |
472 | "non-zero lower bound to C"); | |
473 | ||
474 | return instance->plugin ().error (s); | |
475 | } | |
476 | ||
477 | if (TYPE_HIGH_BOUND_KIND (range) == PROP_LOCEXPR | |
478 | || TYPE_HIGH_BOUND_KIND (range) == PROP_LOCLIST) | |
479 | { | |
480 | if (TYPE_VECTOR (type)) | |
481 | { | |
482 | const char *s = _("variably-sized vector type is not supported"); | |
483 | ||
484 | return instance->plugin ().error (s); | |
485 | } | |
486 | ||
487 | std::string upper_bound | |
488 | = c_get_range_decl_name (&TYPE_RANGE_DATA (range)->high); | |
489 | return instance->plugin ().build_vla_array_type (element_type, | |
490 | upper_bound.c_str ()); | |
491 | } | |
492 | else | |
493 | { | |
494 | LONGEST low_bound, high_bound, count; | |
495 | ||
496 | if (get_array_bounds (type, &low_bound, &high_bound) == 0) | |
497 | count = -1; | |
498 | else | |
499 | { | |
500 | gdb_assert (low_bound == 0); /* Ensured above. */ | |
501 | count = high_bound + 1; | |
502 | } | |
503 | ||
504 | if (TYPE_VECTOR (type)) | |
505 | return instance->plugin ().build_vector_type (element_type, count); | |
506 | ||
507 | return instance->plugin ().build_array_type (element_type, count); | |
508 | } | |
509 | } | |
510 | ||
511 | /* Convert a typedef of TYPE. If not GCC_CP_ACCESS_NONE, NESTED_ACCESS | |
512 | will define the accessibility of the typedef definition in its | |
513 | containing class. */ | |
514 | ||
515 | static gcc_type | |
516 | compile_cplus_convert_typedef (compile_cplus_instance *instance, | |
517 | struct type *type, | |
518 | enum gcc_cp_symbol_kind nested_access) | |
519 | { | |
520 | compile_scope scope = instance->new_scope (TYPE_NAME (type), type); | |
521 | ||
522 | if (scope.nested_type () != GCC_TYPE_NONE) | |
523 | return scope.nested_type (); | |
524 | ||
525 | gdb::unique_xmalloc_ptr<char> name | |
526 | = compile_cplus_instance::decl_name (TYPE_NAME (type)); | |
527 | ||
528 | /* Make sure the scope for this type has been pushed. */ | |
d82b3862 | 529 | instance->enter_scope (std::move (scope)); |
078a0207 KS |
530 | |
531 | /* Convert the typedef's real type. */ | |
532 | gcc_type typedef_type = instance->convert_type (check_typedef (type)); | |
533 | ||
534 | instance->plugin ().build_decl ("typedef", name.get (), | |
535 | GCC_CP_SYMBOL_TYPEDEF | nested_access, | |
536 | typedef_type, 0, 0, nullptr, 0); | |
537 | ||
538 | /* Completed this scope. */ | |
539 | instance->leave_scope (); | |
540 | return typedef_type; | |
541 | } | |
542 | ||
543 | /* Convert types defined in TYPE. */ | |
544 | ||
545 | static void | |
546 | compile_cplus_convert_type_defns (compile_cplus_instance *instance, | |
547 | struct type *type) | |
548 | { | |
549 | int i; | |
550 | enum gcc_cp_symbol_kind accessibility; | |
551 | ||
552 | /* Convert typedefs. */ | |
553 | for (i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i) | |
554 | { | |
555 | if (TYPE_TYPEDEF_FIELD_PROTECTED (type, i)) | |
556 | accessibility = GCC_CP_ACCESS_PROTECTED; | |
557 | else if (TYPE_TYPEDEF_FIELD_PRIVATE (type, i)) | |
558 | accessibility = GCC_CP_ACCESS_PRIVATE; | |
559 | else | |
560 | accessibility = GCC_CP_ACCESS_PUBLIC; | |
561 | instance->convert_type (TYPE_TYPEDEF_FIELD_TYPE (type, i), accessibility); | |
562 | } | |
563 | ||
564 | /* Convert nested types. */ | |
565 | for (i = 0; i < TYPE_NESTED_TYPES_COUNT (type); ++i) | |
566 | { | |
567 | if (TYPE_NESTED_TYPES_FIELD_PROTECTED (type, i)) | |
568 | accessibility = GCC_CP_ACCESS_PROTECTED; | |
569 | else if (TYPE_NESTED_TYPES_FIELD_PRIVATE (type, i)) | |
570 | accessibility = GCC_CP_ACCESS_PRIVATE; | |
571 | else | |
572 | accessibility = GCC_CP_ACCESS_PUBLIC; | |
573 | instance->convert_type (TYPE_NESTED_TYPES_FIELD_TYPE (type, i), | |
574 | accessibility); | |
575 | } | |
576 | } | |
577 | ||
578 | /* Convert data members defined in TYPE, which should be struct/class/union | |
579 | with gcc_type COMP_TYPE. */ | |
580 | ||
581 | static void | |
582 | compile_cplus_convert_struct_or_union_members | |
583 | (compile_cplus_instance *instance, struct type *type, gcc_type comp_type) | |
584 | { | |
585 | for (int i = TYPE_N_BASECLASSES (type); i < TYPE_NFIELDS (type); ++i) | |
586 | { | |
587 | const char *field_name = TYPE_FIELD_NAME (type, i); | |
588 | ||
589 | if (TYPE_FIELD_IGNORE (type, i) | |
590 | || TYPE_FIELD_ARTIFICIAL (type, i)) | |
591 | continue; | |
592 | ||
593 | /* GDB records unnamed/anonymous fields with empty string names. */ | |
594 | if (*field_name == '\0') | |
595 | field_name = nullptr; | |
596 | ||
597 | gcc_type field_type | |
598 | = instance->convert_type (TYPE_FIELD_TYPE (type, i)); | |
599 | ||
600 | if (field_is_static (&TYPE_FIELD (type, i))) | |
601 | { | |
602 | CORE_ADDR physaddr; | |
603 | ||
604 | switch (TYPE_FIELD_LOC_KIND (type, i)) | |
605 | { | |
606 | case FIELD_LOC_KIND_PHYSADDR: | |
607 | { | |
608 | physaddr = TYPE_FIELD_STATIC_PHYSADDR (type, i); | |
609 | ||
610 | instance->plugin ().build_decl | |
611 | ("field physaddr", field_name, | |
612 | (GCC_CP_SYMBOL_VARIABLE | get_field_access_flag (type, i)), | |
613 | field_type, nullptr, physaddr, nullptr, 0); | |
614 | } | |
615 | break; | |
616 | ||
617 | case FIELD_LOC_KIND_PHYSNAME: | |
618 | { | |
619 | const char *physname = TYPE_FIELD_STATIC_PHYSNAME (type, i); | |
620 | struct block_symbol sym | |
621 | = lookup_symbol (physname, instance->block (), | |
622 | VAR_DOMAIN, nullptr); | |
623 | ||
624 | if (sym.symbol == nullptr) | |
625 | { | |
626 | /* We didn't actually find the symbol. There's little | |
627 | we can do but ignore this member. */ | |
628 | continue; | |
629 | } | |
630 | const char *filename = symbol_symtab (sym.symbol)->filename; | |
631 | unsigned int line = SYMBOL_LINE (sym.symbol); | |
632 | ||
633 | physaddr = SYMBOL_VALUE_ADDRESS (sym.symbol); | |
634 | instance->plugin ().build_decl | |
635 | ("field physname", field_name, | |
636 | (GCC_CP_SYMBOL_VARIABLE| get_field_access_flag (type, i)), | |
637 | field_type, nullptr, physaddr, filename, line); | |
638 | } | |
639 | break; | |
640 | ||
641 | default: | |
642 | gdb_assert_not_reached | |
643 | ("unexpected static field location kind"); | |
644 | } | |
645 | } | |
646 | else | |
647 | { | |
648 | unsigned long bitsize = TYPE_FIELD_BITSIZE (type, i); | |
649 | enum gcc_cp_symbol_kind field_flags = GCC_CP_SYMBOL_FIELD | |
650 | | get_field_access_flag (type, i); | |
651 | ||
652 | if (bitsize == 0) | |
653 | bitsize = 8 * TYPE_LENGTH (TYPE_FIELD_TYPE (type, i)); | |
654 | ||
655 | instance->plugin ().build_field | |
656 | (field_name, field_type, field_flags, bitsize, | |
657 | TYPE_FIELD_BITPOS (type, i)); | |
658 | } | |
659 | } | |
660 | } | |
661 | ||
662 | /* Convert a method type to its gcc representation. */ | |
663 | ||
664 | static gcc_type | |
665 | compile_cplus_convert_method (compile_cplus_instance *instance, | |
666 | struct type *parent_type, | |
667 | struct type *method_type) | |
668 | { | |
669 | /* Get the actual function type of the method, the corresponding class's | |
670 | type and corresponding qualifier flags. */ | |
671 | gcc_type func_type = compile_cplus_convert_func (instance, method_type, true); | |
672 | gcc_type class_type = instance->convert_type (parent_type); | |
673 | gcc_cp_qualifiers_flags quals = (enum gcc_cp_qualifiers) 0; | |
674 | ||
675 | if (TYPE_CONST (method_type)) | |
676 | quals |= GCC_CP_QUALIFIER_CONST; | |
677 | if (TYPE_VOLATILE (method_type)) | |
678 | quals |= GCC_CP_QUALIFIER_VOLATILE; | |
679 | if (TYPE_RESTRICT (method_type)) | |
680 | quals |= GCC_CP_QUALIFIER_RESTRICT; | |
681 | ||
682 | /* Not yet implemented. */ | |
683 | gcc_cp_ref_qualifiers_flags rquals = GCC_CP_REF_QUAL_NONE; | |
684 | ||
685 | return instance->plugin ().build_method_type | |
686 | (class_type, func_type, quals, rquals); | |
687 | } | |
688 | ||
689 | /* Convert a member or method pointer represented by TYPE. */ | |
690 | ||
691 | static gcc_type | |
692 | compile_cplus_convert_memberptr (compile_cplus_instance *instance, | |
693 | struct type *type) | |
694 | { | |
695 | struct type *containing_class = TYPE_SELF_TYPE (type); | |
696 | ||
697 | if (containing_class == nullptr) | |
698 | return GCC_TYPE_NONE; | |
699 | ||
700 | gcc_type class_type = instance->convert_type (containing_class); | |
701 | gcc_type member_type | |
702 | = instance->convert_type (TYPE_TARGET_TYPE (type)); | |
703 | ||
704 | return instance->plugin ().build_pointer_to_member_type | |
705 | (class_type, member_type); | |
706 | } | |
707 | ||
708 | /* Convert all methods defined in TYPE, which should be a class/struct/union | |
709 | with gcc_type CLASS_TYPE. */ | |
710 | ||
711 | static void | |
712 | compile_cplus_convert_struct_or_union_methods (compile_cplus_instance *instance, | |
713 | struct type *type, | |
714 | gcc_type class_type) | |
715 | { | |
716 | for (int i = 0; i < TYPE_NFN_FIELDS (type); ++i) | |
717 | { | |
718 | struct fn_field *methods = TYPE_FN_FIELDLIST1 (type, i); | |
719 | gdb::unique_xmalloc_ptr<char> overloaded_name | |
720 | = compile_cplus_instance::decl_name (TYPE_FN_FIELDLIST_NAME (type, i)); | |
721 | ||
722 | /* Loop through the fieldlist, adding decls to the compiler's | |
723 | representation of the class. */ | |
724 | for (int j = 0; j < TYPE_FN_FIELDLIST_LENGTH (type, i); ++j) | |
725 | { | |
726 | /* Skip artificial methods. */ | |
727 | if (TYPE_FN_FIELD_ARTIFICIAL (methods, j)) | |
728 | continue; | |
729 | ||
730 | gcc_cp_symbol_kind_flags sym_kind = GCC_CP_SYMBOL_FUNCTION; | |
731 | gcc_type method_type; | |
732 | struct block_symbol sym | |
733 | = lookup_symbol (TYPE_FN_FIELD_PHYSNAME (methods, j), | |
734 | instance->block (), VAR_DOMAIN, nullptr); | |
735 | ||
736 | if (sym.symbol == nullptr) | |
737 | { | |
738 | if (TYPE_FN_FIELD_VIRTUAL_P (methods, j)) | |
739 | { | |
740 | /* This is beyond hacky, and is really only a workaround for | |
741 | detecting pure virtual methods. */ | |
742 | method_type = compile_cplus_convert_method | |
743 | (instance, type, TYPE_FN_FIELD_TYPE (methods, j)); | |
744 | ||
745 | instance->plugin ().build_decl | |
746 | ("pure virtual method", overloaded_name.get (), | |
747 | (sym_kind | |
748 | | get_method_access_flag (type, i, j) | |
749 | | GCC_CP_FLAG_VIRTUAL_FUNCTION | |
750 | | GCC_CP_FLAG_PURE_VIRTUAL_FUNCTION), | |
751 | method_type, nullptr, 0, nullptr, 0); | |
752 | continue; | |
753 | } | |
754 | ||
755 | /* This can happen if we have a DW_AT_declaration DIE | |
756 | for the method, but no "definition"-type DIE (with | |
757 | DW_AT_specification referencing the decl DIE), i.e., | |
758 | the compiler has probably optimized the method away. | |
759 | ||
760 | In this case, all we can hope to do is issue a warning | |
761 | to the user letting him know. If the user has not actually | |
762 | requested using this method, things should still work. */ | |
763 | warning (_("Method %s appears to be optimized out.\n" | |
764 | "All references to this method will be undefined."), | |
765 | TYPE_FN_FIELD_PHYSNAME (methods, j)); | |
766 | continue; | |
767 | } | |
768 | ||
769 | const char *filename = symbol_symtab (sym.symbol)->filename; | |
770 | unsigned int line = SYMBOL_LINE (sym.symbol); | |
771 | CORE_ADDR address = BLOCK_START (SYMBOL_BLOCK_VALUE (sym.symbol)); | |
772 | const char *kind; | |
773 | ||
774 | if (TYPE_FN_FIELD_STATIC_P (methods, j)) | |
775 | { | |
776 | kind = "static method"; | |
777 | method_type = compile_cplus_convert_func | |
778 | (instance, TYPE_FN_FIELD_TYPE (methods, j), true); | |
779 | } | |
780 | else | |
781 | { | |
782 | kind = "method"; | |
783 | method_type = (compile_cplus_convert_method | |
784 | (instance, type, TYPE_FN_FIELD_TYPE (methods, j))); | |
785 | } | |
786 | ||
787 | if (TYPE_FN_FIELD_VIRTUAL_P (methods, j)) | |
788 | sym_kind |= GCC_CP_FLAG_VIRTUAL_FUNCTION; | |
789 | ||
790 | instance->plugin ().build_decl | |
791 | (kind, overloaded_name.get (), | |
792 | sym_kind | get_method_access_flag (type, i, j), | |
793 | method_type, nullptr, address, filename, line); | |
794 | } | |
795 | } | |
796 | } | |
797 | ||
798 | /* Convert a struct or union type to its gcc representation. If this type | |
799 | was defined in another type, NESTED_ACCESS should indicate the | |
800 | accessibility of this type. */ | |
801 | ||
802 | static gcc_type | |
803 | compile_cplus_convert_struct_or_union (compile_cplus_instance *instance, | |
804 | struct type *type, | |
805 | enum gcc_cp_symbol_kind nested_access) | |
806 | { | |
807 | const char *filename = nullptr; | |
808 | unsigned short line = 0; | |
809 | ||
810 | /* Get the decl name of this type. */ | |
811 | gdb::unique_xmalloc_ptr<char> name | |
812 | = compile_cplus_instance::decl_name (TYPE_NAME (type)); | |
813 | ||
814 | /* Create a new scope for TYPE. */ | |
815 | compile_scope scope = instance->new_scope (TYPE_NAME (type), type); | |
816 | ||
817 | if (scope.nested_type () != GCC_TYPE_NONE) | |
818 | { | |
819 | /* The type requested was actually defined inside another type, | |
820 | such as a nested class definition. Return that type. */ | |
821 | return scope.nested_type (); | |
822 | } | |
823 | ||
824 | /* Push all scopes. */ | |
d82b3862 | 825 | instance->enter_scope (std::move (scope)); |
078a0207 KS |
826 | |
827 | /* First we create the resulting type and enter it into our hash | |
828 | table. This lets recursive types work. */ | |
829 | ||
830 | gcc_decl resuld; | |
831 | if (TYPE_CODE (type) == TYPE_CODE_STRUCT) | |
832 | { | |
833 | const char *what = TYPE_DECLARED_CLASS (type) ? "struct" : "class"; | |
834 | ||
835 | resuld = instance->plugin ().build_decl | |
836 | (what, name.get (), (GCC_CP_SYMBOL_CLASS | nested_access | |
837 | | (TYPE_DECLARED_CLASS (type) | |
838 | ? GCC_CP_FLAG_CLASS_NOFLAG | |
839 | : GCC_CP_FLAG_CLASS_IS_STRUCT)), | |
840 | 0, nullptr, 0, filename, line); | |
841 | } | |
842 | else | |
843 | { | |
844 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_UNION); | |
845 | resuld = instance->plugin ().build_decl | |
846 | ("union", name.get (), GCC_CP_SYMBOL_UNION | nested_access, | |
847 | 0, nullptr, 0, filename, line); | |
848 | } | |
849 | ||
850 | gcc_type result; | |
851 | if (TYPE_CODE (type) == TYPE_CODE_STRUCT) | |
852 | { | |
853 | struct gcc_vbase_array bases; | |
854 | int num_baseclasses = TYPE_N_BASECLASSES (type); | |
855 | ||
856 | memset (&bases, 0, sizeof (bases)); | |
857 | ||
858 | if (num_baseclasses > 0) | |
859 | { | |
860 | bases.elements = XNEWVEC (gcc_type, num_baseclasses); | |
861 | bases.flags = XNEWVEC (enum gcc_cp_symbol_kind, num_baseclasses); | |
862 | bases.n_elements = num_baseclasses; | |
863 | for (int i = 0; i < num_baseclasses; ++i) | |
864 | { | |
865 | struct type *base_type = TYPE_BASECLASS (type, i); | |
866 | ||
867 | bases.flags[i] = GCC_CP_SYMBOL_BASECLASS | |
868 | | get_field_access_flag (type, i) | |
869 | | (BASETYPE_VIA_VIRTUAL (type, i) | |
870 | ? GCC_CP_FLAG_BASECLASS_VIRTUAL | |
871 | : GCC_CP_FLAG_BASECLASS_NOFLAG); | |
872 | bases.elements[i] = instance->convert_type (base_type); | |
873 | } | |
874 | } | |
875 | ||
876 | result = instance->plugin ().start_class_type | |
877 | (name.get (), resuld, &bases, filename, line); | |
878 | xfree (bases.flags); | |
879 | xfree (bases.elements); | |
880 | } | |
881 | else | |
882 | { | |
883 | gdb_assert (TYPE_CODE (type) == TYPE_CODE_UNION); | |
884 | result = instance->plugin ().start_class_type | |
885 | (name.get (), resuld, nullptr, filename, line); | |
886 | } | |
887 | ||
888 | instance->insert_type (type, result); | |
889 | ||
890 | /* Add definitions. */ | |
891 | compile_cplus_convert_type_defns (instance, type); | |
892 | ||
893 | /* Add methods. */ | |
894 | compile_cplus_convert_struct_or_union_methods (instance, type, result); | |
895 | ||
896 | /* Add members. */ | |
897 | compile_cplus_convert_struct_or_union_members (instance, type, result); | |
898 | ||
899 | /* All finished. */ | |
900 | instance->plugin ().finish_class_type (name.get (), TYPE_LENGTH (type)); | |
901 | ||
902 | /* Pop all scopes. */ | |
903 | instance->leave_scope (); | |
904 | return result; | |
905 | } | |
906 | ||
907 | /* Convert an enum type to its gcc representation. If this type | |
908 | was defined in another type, NESTED_ACCESS should indicate the | |
909 | accessibility of this type.*/ | |
910 | ||
911 | static gcc_type | |
912 | compile_cplus_convert_enum (compile_cplus_instance *instance, struct type *type, | |
913 | enum gcc_cp_symbol_kind nested_access) | |
914 | { | |
915 | int scoped_enum_p = FALSE; | |
916 | ||
917 | /* Create a new scope for this type. */ | |
918 | compile_scope scope = instance->new_scope (TYPE_NAME (type), type); | |
919 | ||
920 | if (scope.nested_type () != GCC_TYPE_NONE) | |
921 | { | |
922 | /* The type requested was actually defined inside another type, | |
923 | such as a nested class definition. Return that type. */ | |
924 | return scope.nested_type (); | |
925 | } | |
926 | ||
927 | gdb::unique_xmalloc_ptr<char> name | |
928 | = compile_cplus_instance::decl_name (TYPE_NAME (type)); | |
929 | ||
930 | /* Push all scopes. */ | |
d82b3862 | 931 | instance->enter_scope (std::move (scope)); |
078a0207 KS |
932 | |
933 | gcc_type int_type | |
934 | = instance->plugin ().get_int_type (TYPE_UNSIGNED (type), | |
935 | TYPE_LENGTH (type), nullptr); | |
936 | gcc_type result | |
937 | = instance->plugin ().start_enum_type (name.get (), int_type, | |
938 | GCC_CP_SYMBOL_ENUM | nested_access | |
939 | | (scoped_enum_p | |
940 | ? GCC_CP_FLAG_ENUM_SCOPED | |
941 | : GCC_CP_FLAG_ENUM_NOFLAG), | |
942 | nullptr, 0); | |
943 | for (int i = 0; i < TYPE_NFIELDS (type); ++i) | |
944 | { | |
945 | gdb::unique_xmalloc_ptr<char> fname | |
946 | = compile_cplus_instance::decl_name (TYPE_FIELD_NAME (type, i)); | |
947 | ||
948 | if (TYPE_FIELD_LOC_KIND (type, i) != FIELD_LOC_KIND_ENUMVAL | |
949 | || fname == nullptr) | |
950 | continue; | |
951 | ||
952 | instance->plugin ().build_enum_constant (result, fname.get (), | |
953 | TYPE_FIELD_ENUMVAL (type, i)); | |
954 | } | |
955 | ||
956 | /* Finish enum definition and pop scopes. */ | |
957 | instance->plugin ().finish_enum_type (result); | |
958 | instance->leave_scope (); | |
959 | return result; | |
960 | } | |
961 | ||
962 | /* Convert a function type to its gcc representation. This function does | |
963 | not deal with function templates. */ | |
964 | ||
965 | static gcc_type | |
966 | compile_cplus_convert_func (compile_cplus_instance *instance, | |
967 | struct type *type, bool strip_artificial) | |
968 | { | |
969 | int is_varargs = TYPE_VARARGS (type); | |
970 | struct type *target_type = TYPE_TARGET_TYPE (type); | |
971 | ||
972 | /* Functions with no debug info have no return type. Ideally we'd | |
973 | want to fallback to the type of the cast just before the | |
974 | function, like GDB's built-in expression parser, but we don't | |
975 | have access to that type here. For now, fallback to int, like | |
976 | GDB's parser used to do. */ | |
977 | if (target_type == nullptr) | |
978 | { | |
979 | if (TYPE_OBJFILE_OWNED (type)) | |
980 | target_type = objfile_type (TYPE_OWNER (type).objfile)->builtin_int; | |
981 | else | |
982 | target_type = builtin_type (TYPE_OWNER (type).gdbarch)->builtin_int; | |
983 | warning (_("function has unknown return type; assuming int")); | |
984 | } | |
985 | ||
986 | /* This approach means we can't make self-referential function | |
987 | types. Those are impossible in C, though. */ | |
988 | gcc_type return_type = instance->convert_type (target_type); | |
989 | ||
990 | struct gcc_type_array array = | |
991 | { TYPE_NFIELDS (type), XNEWVEC (gcc_type, TYPE_NFIELDS (type)) }; | |
992 | int artificials = 0; | |
993 | for (int i = 0; i < TYPE_NFIELDS (type); ++i) | |
994 | { | |
995 | if (strip_artificial && TYPE_FIELD_ARTIFICIAL (type, i)) | |
996 | { | |
997 | --array.n_elements; | |
998 | ++artificials; | |
999 | } | |
1000 | else | |
1001 | { | |
1002 | array.elements[i - artificials] | |
1003 | = instance->convert_type (TYPE_FIELD_TYPE (type, i)); | |
1004 | } | |
1005 | } | |
1006 | ||
1007 | /* We omit setting the argument types to `void' to be a little flexible | |
1008 | with some minsyms like printf (compile-cplus.exp has examples). */ | |
1009 | gcc_type result = instance->plugin ().build_function_type | |
1010 | (return_type, &array, is_varargs); | |
1011 | xfree (array.elements); | |
1012 | return result; | |
1013 | } | |
1014 | ||
1015 | /* Convert an integer type to its gcc representation. */ | |
1016 | ||
1017 | static gcc_type | |
1018 | compile_cplus_convert_int (compile_cplus_instance *instance, struct type *type) | |
1019 | { | |
1020 | if (TYPE_NOSIGN (type)) | |
1021 | { | |
1022 | gdb_assert (TYPE_LENGTH (type) == 1); | |
1023 | return instance->plugin ().get_char_type (); | |
1024 | } | |
1025 | ||
1026 | return instance->plugin ().get_int_type | |
1027 | (TYPE_UNSIGNED (type), TYPE_LENGTH (type), TYPE_NAME (type)); | |
1028 | } | |
1029 | ||
1030 | /* Convert a floating-point type to its gcc representation. */ | |
1031 | ||
1032 | static gcc_type | |
1033 | compile_cplus_convert_float (compile_cplus_instance *instance, | |
1034 | struct type *type) | |
1035 | { | |
1036 | return instance->plugin ().get_float_type | |
1037 | (TYPE_LENGTH (type), TYPE_NAME (type)); | |
1038 | } | |
1039 | ||
1040 | /* Convert the 'void' type to its gcc representation. */ | |
1041 | ||
1042 | static gcc_type | |
1043 | compile_cplus_convert_void (compile_cplus_instance *instance, struct type *type) | |
1044 | { | |
1045 | return instance->plugin ().get_void_type (); | |
1046 | } | |
1047 | ||
1048 | /* Convert a boolean type to its gcc representation. */ | |
1049 | ||
1050 | static gcc_type | |
1051 | compile_cplus_convert_bool (compile_cplus_instance *instance, struct type *type) | |
1052 | { | |
1053 | return instance->plugin ().get_bool_type (); | |
1054 | } | |
1055 | ||
1056 | /* See description in compile-cplus.h. */ | |
1057 | ||
1058 | gcc_type | |
1059 | compile_cplus_instance::convert_qualified_base (gcc_type base, | |
1060 | gcc_cp_qualifiers_flags quals) | |
1061 | { | |
1062 | gcc_type result = base; | |
1063 | ||
a0dc02a6 | 1064 | if (quals != 0) |
078a0207 KS |
1065 | result = plugin ().build_qualified_type (base, quals); |
1066 | ||
1067 | return result; | |
1068 | } | |
1069 | ||
1070 | /* See description in compile-cplus.h. */ | |
1071 | ||
1072 | static gcc_type | |
1073 | compile_cplus_convert_qualified (compile_cplus_instance *instance, | |
1074 | struct type *type) | |
1075 | { | |
1076 | struct type *unqual = make_unqualified_type (type); | |
1077 | gcc_cp_qualifiers_flags quals = (enum gcc_cp_qualifiers) 0; | |
1078 | gcc_type unqual_converted = instance->convert_type (unqual); | |
1079 | ||
1080 | if (TYPE_CONST (type)) | |
1081 | quals |= GCC_CP_QUALIFIER_CONST; | |
1082 | if (TYPE_VOLATILE (type)) | |
1083 | quals |= GCC_CP_QUALIFIER_VOLATILE; | |
1084 | if (TYPE_RESTRICT (type)) | |
1085 | quals |= GCC_CP_QUALIFIER_RESTRICT; | |
1086 | ||
1087 | return instance->convert_qualified_base (unqual_converted, quals); | |
1088 | } | |
1089 | ||
1090 | /* Convert a complex type to its gcc representation. */ | |
1091 | ||
1092 | static gcc_type | |
1093 | compile_cplus_convert_complex (compile_cplus_instance *instance, | |
1094 | struct type *type) | |
1095 | { | |
1096 | gcc_type base = instance->convert_type (TYPE_TARGET_TYPE (type)); | |
1097 | ||
1098 | return instance->plugin ().build_complex_type (base); | |
1099 | } | |
1100 | ||
1101 | /* Convert a namespace of TYPE. */ | |
1102 | ||
1103 | static gcc_type | |
1104 | compile_cplus_convert_namespace (compile_cplus_instance *instance, | |
1105 | struct type *type) | |
1106 | { | |
1107 | compile_scope scope = instance->new_scope (TYPE_NAME (type), type); | |
1108 | gdb::unique_xmalloc_ptr<char> name | |
1109 | = compile_cplus_instance::decl_name (TYPE_NAME (type)); | |
1110 | ||
1111 | /* Push scope. */ | |
d82b3862 | 1112 | instance->enter_scope (std::move (scope)); |
078a0207 KS |
1113 | |
1114 | /* Convert this namespace. */ | |
1115 | instance->plugin ().push_namespace (name.get ()); | |
1116 | instance->plugin ().pop_binding_level (name.get ()); | |
1117 | ||
1118 | /* Pop scope. */ | |
1119 | instance->leave_scope (); | |
1120 | ||
1121 | /* Namespaces are non-cacheable types. */ | |
1122 | return GCC_TYPE_NONE; | |
1123 | } | |
1124 | ||
1125 | /* A helper function which knows how to convert most types from their | |
1126 | gdb representation to the corresponding gcc form. This examines | |
1127 | the TYPE and dispatches to the appropriate conversion function. It | |
1128 | returns the gcc type. | |
1129 | ||
1130 | If the type was defined in another type, NESTED_ACCESS should indicate the | |
1131 | accessibility of this type. */ | |
1132 | ||
1133 | static gcc_type | |
1134 | convert_type_cplus_basic (compile_cplus_instance *instance, | |
1135 | struct type *type, | |
1136 | enum gcc_cp_symbol_kind nested_access) | |
1137 | { | |
1138 | /* If we are converting a qualified type, first convert the | |
1139 | unqualified type and then apply the qualifiers. */ | |
1140 | if ((TYPE_INSTANCE_FLAGS (type) & (TYPE_INSTANCE_FLAG_CONST | |
1141 | | TYPE_INSTANCE_FLAG_VOLATILE | |
1142 | | TYPE_INSTANCE_FLAG_RESTRICT)) != 0) | |
1143 | return compile_cplus_convert_qualified (instance, type); | |
1144 | ||
1145 | switch (TYPE_CODE (type)) | |
1146 | { | |
1147 | case TYPE_CODE_REF: | |
1148 | case TYPE_CODE_RVALUE_REF: | |
1149 | return compile_cplus_convert_reference (instance, type); | |
1150 | ||
1151 | case TYPE_CODE_PTR: | |
1152 | return compile_cplus_convert_pointer (instance, type); | |
1153 | ||
1154 | case TYPE_CODE_ARRAY: | |
1155 | return compile_cplus_convert_array (instance, type); | |
1156 | ||
1157 | case TYPE_CODE_STRUCT: | |
1158 | case TYPE_CODE_UNION: | |
1159 | return | |
1160 | compile_cplus_convert_struct_or_union (instance, type, nested_access); | |
1161 | ||
1162 | case TYPE_CODE_ENUM: | |
1163 | return compile_cplus_convert_enum (instance, type, nested_access); | |
1164 | ||
1165 | case TYPE_CODE_FUNC: | |
1166 | return compile_cplus_convert_func (instance, type, false); | |
1167 | ||
1168 | case TYPE_CODE_METHOD: | |
1169 | return | |
1170 | compile_cplus_convert_method (instance, TYPE_SELF_TYPE (type), type); | |
1171 | ||
1172 | case TYPE_CODE_MEMBERPTR: | |
1173 | case TYPE_CODE_METHODPTR: | |
1174 | return compile_cplus_convert_memberptr (instance, type); | |
1175 | break; | |
1176 | ||
1177 | case TYPE_CODE_INT: | |
1178 | return compile_cplus_convert_int (instance, type); | |
1179 | ||
1180 | case TYPE_CODE_FLT: | |
1181 | return compile_cplus_convert_float (instance, type); | |
1182 | ||
1183 | case TYPE_CODE_VOID: | |
1184 | return compile_cplus_convert_void (instance, type); | |
1185 | ||
1186 | case TYPE_CODE_BOOL: | |
1187 | return compile_cplus_convert_bool (instance, type); | |
1188 | ||
1189 | case TYPE_CODE_COMPLEX: | |
1190 | return compile_cplus_convert_complex (instance, type); | |
1191 | ||
1192 | case TYPE_CODE_NAMESPACE: | |
1193 | return compile_cplus_convert_namespace (instance, type); | |
1194 | ||
1195 | case TYPE_CODE_TYPEDEF: | |
1196 | return compile_cplus_convert_typedef (instance, type, nested_access); | |
1197 | ||
1198 | default: | |
1199 | break; | |
1200 | } | |
1201 | ||
1202 | std::string s = string_printf (_("unhandled TYPE_CODE %d"), | |
1203 | TYPE_CODE (type)); | |
1204 | ||
1205 | return instance->plugin ().error (s.c_str ()); | |
1206 | } | |
1207 | ||
1208 | gcc_type | |
1209 | compile_cplus_instance::convert_type (struct type *type, | |
1210 | enum gcc_cp_symbol_kind nested_access) | |
1211 | { | |
1212 | /* Check if TYPE has already been converted. */ | |
1213 | gcc_type result; | |
d82b3862 | 1214 | if (get_cached_type (type, &result)) |
078a0207 KS |
1215 | return result; |
1216 | ||
1217 | /* It is the first time this type has been seen -- convert it | |
1218 | and cache it, if appropriate.. */ | |
1219 | result = convert_type_cplus_basic (this, type, nested_access); | |
1220 | if (result != GCC_TYPE_NONE) | |
1221 | insert_type (type, result); | |
1222 | return result; | |
1223 | } | |
1224 | ||
1225 | void | |
1226 | compile_cplus_instance::gcc_cplus_enter_scope | |
1227 | (void *datum, struct gcc_cp_context *gcc_context) | |
1228 | { | |
1229 | } | |
1230 | ||
1231 | void | |
1232 | compile_cplus_instance::gcc_cplus_leave_scope | |
1233 | (void *datum, struct gcc_cp_context *gcc_context) | |
1234 | { | |
1235 | } | |
1236 | ||
1237 | \f | |
1238 | ||
1239 | /* Plug-in forwards. */ | |
1240 | ||
1241 | /* C++ plug-in wrapper. */ | |
1242 | ||
1243 | /* A result printer for plug-in calls that return a gcc_type or | |
1244 | gcc_decl. */ | |
1245 | ||
1246 | static void | |
5c889512 | 1247 | compile_cplus_debug_output_1 (ULONGEST arg) |
078a0207 | 1248 | { |
5c889512 | 1249 | fprintf_unfiltered (gdb_stdlog, "%s", pulongest (arg)); |
078a0207 KS |
1250 | } |
1251 | ||
1252 | static void | |
1253 | compile_cplus_debug_output_1 (const char *arg) | |
1254 | { | |
1255 | if (arg == nullptr) | |
1256 | fputs_unfiltered ("NULL", gdb_stdlog); | |
1257 | else | |
1258 | fputs_unfiltered (arg, gdb_stdlog); | |
1259 | } | |
1260 | ||
1261 | static void | |
1262 | compile_cplus_debug_output () | |
1263 | { | |
1264 | } | |
1265 | ||
1266 | template <typename T> | |
1267 | static void | |
1268 | compile_cplus_debug_output_1 (const T *arg) | |
1269 | { | |
1270 | } | |
1271 | ||
1272 | template <typename T, typename... Targs> | |
1273 | static void | |
1274 | compile_cplus_debug_output (T arg, Targs... Args) | |
1275 | { | |
1276 | compile_cplus_debug_output_1 (arg); | |
1277 | fputc_unfiltered (' ', gdb_stdlog); | |
1278 | compile_cplus_debug_output (Args...); | |
1279 | } | |
1280 | ||
1281 | #define FORWARD(OP,...) m_context->cp_ops->OP(m_context, ##__VA_ARGS__) | |
1282 | #define OUTPUT_DEBUG_RESULT(R) \ | |
1283 | if (debug_compile_cplus_types) \ | |
1284 | { \ | |
1285 | fputs_unfiltered (": ", gdb_stdlog); \ | |
1286 | compile_cplus_debug_output (R); \ | |
1287 | fputc_unfiltered ('\n', gdb_stdlog); \ | |
1288 | } \ | |
1289 | ||
1290 | #define GCC_METHOD0(R, N) \ | |
1291 | R gcc_cp_plugin::N () const \ | |
1292 | { \ | |
1293 | if (debug_compile_cplus_types) \ | |
1294 | compile_cplus_debug_output (STRINGIFY (N)); \ | |
1295 | auto result = FORWARD (N); \ | |
1296 | OUTPUT_DEBUG_RESULT (result); \ | |
1297 | return result; \ | |
1298 | } | |
1299 | #define GCC_METHOD1(R, N, A) \ | |
1300 | R gcc_cp_plugin::N (A a) const \ | |
1301 | { \ | |
1302 | if (debug_compile_cplus_types) \ | |
1303 | compile_cplus_debug_output (STRINGIFY (N), a); \ | |
1304 | auto result = FORWARD (N, a); \ | |
1305 | OUTPUT_DEBUG_RESULT (result); \ | |
1306 | return result; \ | |
1307 | } | |
1308 | #define GCC_METHOD2(R, N, A, B) \ | |
1309 | R gcc_cp_plugin::N (A a, B b) const \ | |
1310 | { \ | |
1311 | if (debug_compile_cplus_types) \ | |
1312 | compile_cplus_debug_output (STRINGIFY (N), a, b); \ | |
1313 | auto result = FORWARD (N, a, b); \ | |
1314 | OUTPUT_DEBUG_RESULT (result); \ | |
1315 | return result; \ | |
1316 | } | |
1317 | #define GCC_METHOD3(R, N, A, B, C) \ | |
1318 | R gcc_cp_plugin::N (A a, B b, C c) const \ | |
1319 | { \ | |
1320 | if (debug_compile_cplus_types) \ | |
1321 | compile_cplus_debug_output (STRINGIFY (N), a, b, c); \ | |
1322 | auto result = FORWARD (N, a, b, c); \ | |
1323 | OUTPUT_DEBUG_RESULT (result); \ | |
1324 | return result; \ | |
1325 | } | |
1326 | #define GCC_METHOD4(R, N, A, B, C, D) \ | |
1327 | R gcc_cp_plugin::N (A a, B b, C c, D d) const \ | |
1328 | { \ | |
1329 | if (debug_compile_cplus_types) \ | |
1330 | compile_cplus_debug_output (STRINGIFY (N), a, b, c, d); \ | |
1331 | auto result = FORWARD (N, a, b, c, d); \ | |
1332 | OUTPUT_DEBUG_RESULT (result); \ | |
1333 | return result; \ | |
1334 | } | |
1335 | #define GCC_METHOD5(R, N, A, B, C, D, E) \ | |
1336 | R gcc_cp_plugin::N (A a, B b, C c, D d, E e) const \ | |
1337 | { \ | |
1338 | if (debug_compile_cplus_types) \ | |
1339 | compile_cplus_debug_output (STRINGIFY (N), a, b, c, d, e); \ | |
1340 | auto result = FORWARD (N, a, b, c, d, e); \ | |
1341 | OUTPUT_DEBUG_RESULT (result); \ | |
1342 | return result; \ | |
1343 | } | |
1344 | #define GCC_METHOD7(R, N, A, B, C, D, E, F, G) \ | |
1345 | R gcc_cp_plugin::N (A a, B b, C c, D d, E e, F f, G g) const \ | |
1346 | { \ | |
1347 | if (debug_compile_cplus_types) \ | |
1348 | compile_cplus_debug_output (STRINGIFY (N), a, b, c, d, e, f, g); \ | |
1349 | auto result = FORWARD (N, a, b, c, d, e, f, g); \ | |
1350 | OUTPUT_DEBUG_RESULT (result); \ | |
1351 | return result; \ | |
1352 | } | |
1353 | ||
1354 | #include "gcc-cp-fe.def" | |
1355 | ||
1356 | #undef GCC_METHOD0 | |
1357 | #undef GCC_METHOD1 | |
1358 | #undef GCC_METHOD2 | |
1359 | #undef GCC_METHOD3 | |
1360 | #undef GCC_METHOD4 | |
1361 | #undef GCC_METHOD5 | |
1362 | #undef GCC_METHOD7 | |
1363 | #undef FORWARD | |
1364 | #undef OUTPUT_DEBUG_RESULT | |
1365 | ||
1366 | gcc_expr | |
1367 | gcc_cp_plugin::build_decl (const char *debug_decltype, const char *name, | |
1368 | enum gcc_cp_symbol_kind sym_kind, gcc_type sym_type, | |
1369 | const char *substitution_name, gcc_address address, | |
1370 | const char *filename, unsigned int line_number) | |
1371 | { | |
1372 | if (debug_compile_cplus_types) | |
1373 | fprintf_unfiltered (gdb_stdlog, "<%s> ", debug_decltype); | |
1374 | ||
1375 | return build_decl (name, sym_kind, sym_type, substitution_name, | |
1376 | address, filename, line_number); | |
1377 | } | |
1378 | ||
1379 | gcc_type | |
1380 | gcc_cp_plugin::start_class_type (const char *debug_name, gcc_decl typedecl, | |
1381 | const struct gcc_vbase_array *base_classes, | |
1382 | const char *filename, unsigned int line_number) | |
1383 | { | |
1384 | if (debug_compile_cplus_types) | |
1385 | fprintf_unfiltered (gdb_stdlog, "<%s> ", debug_name); | |
1386 | ||
1387 | return start_class_type (typedecl, base_classes, filename, line_number); | |
1388 | } | |
1389 | ||
1390 | int | |
1391 | gcc_cp_plugin::finish_class_type (const char *debug_name, | |
1392 | unsigned long size_in_bytes) | |
1393 | { | |
1394 | if (debug_compile_cplus_types) | |
1395 | fprintf_unfiltered (gdb_stdlog, "<%s> ", debug_name); | |
1396 | ||
1397 | return finish_class_type (size_in_bytes); | |
1398 | } | |
1399 | ||
1400 | int | |
1401 | gcc_cp_plugin::pop_binding_level (const char *debug_name) | |
1402 | { | |
1403 | if (debug_compile_cplus_types) | |
1404 | fprintf_unfiltered (gdb_stdlog, "<%s> ", debug_name); | |
1405 | ||
1406 | return pop_binding_level (); | |
1407 | } | |
1408 | ||
1409 | void | |
1410 | _initialize_compile_cplus_types () | |
1411 | { | |
1412 | add_setshow_boolean_cmd ("compile-cplus-types", no_class, | |
1413 | &debug_compile_cplus_types, _("\ | |
1414 | Set debugging of C++ compile type conversion."), _("\ | |
1415 | Show debugging of C++ compile type conversion."), _("\ | |
1416 | When enabled debugging messages are printed during C++ type conversion for\n\ | |
1417 | the compile commands."), | |
1418 | nullptr, | |
1419 | nullptr, | |
1420 | &setdebuglist, | |
1421 | &showdebuglist); | |
1422 | ||
1423 | add_setshow_boolean_cmd ("compile-cplus-scopes", no_class, | |
1424 | &debug_compile_cplus_scopes, _("\ | |
1425 | Set debugging of C++ compile scopes."), _("\ | |
1426 | Show debugging of C++ compile scopes."), _("\ | |
1427 | When enabled debugging messages are printed about definition scopes during\n\ | |
1428 | C++ type conversion for the compile commands."), | |
1429 | nullptr, | |
1430 | nullptr, | |
1431 | &setdebuglist, | |
1432 | &showdebuglist); | |
1433 | } |