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d764a8e6 | 1 | /* Next Runtime (ABI-2) private. |
83ffe9cd | 2 | Copyright (C) 2011-2023 Free Software Foundation, Inc. |
d764a8e6 IS |
3 | |
4 | Contributed by Iain Sandoe and based, in part, on an implementation in | |
5 | 'branches/apple/trunk' contributed by Apple Computer Inc. | |
6 | ||
7 | This file is part of GCC. | |
8 | ||
9 | GCC is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 3, or (at your option) | |
12 | any later version. | |
13 | ||
14 | GCC is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with GCC; see the file COPYING3. If not see | |
21 | <http://www.gnu.org/licenses/>. */ | |
22 | ||
23 | /* The NeXT ABI2 is used for m64 implementations on Darwin/OSX machines. | |
944fb799 | 24 | |
d4c433f9 NP |
25 | This version is intended to match (logically) the output of Apple's |
26 | 4.2.1 compiler. */ | |
d764a8e6 IS |
27 | |
28 | #include "config.h" | |
29 | #include "system.h" | |
30 | #include "coretypes.h" | |
314e6352 | 31 | #include "tree.h" |
d8a2d370 | 32 | #include "stringpool.h" |
314e6352 | 33 | #include "attribs.h" |
d764a8e6 IS |
34 | |
35 | #ifdef OBJCPLUS | |
d4a10d0a | 36 | #include "cp/cp-tree.h" |
d764a8e6 | 37 | #else |
d4a10d0a SB |
38 | #include "c/c-tree.h" |
39 | #include "c/c-lang.h" | |
d764a8e6 IS |
40 | #endif |
41 | #include "langhooks.h" | |
42 | #include "c-family/c-objc.h" | |
43 | #include "objc-act.h" | |
44 | ||
45 | /* When building Objective-C++, we are not linking against the C front-end | |
46 | and so need to replicate the C tree-construction functions in some way. */ | |
47 | #ifdef OBJCPLUS | |
48 | #define OBJCP_REMAP_FUNCTIONS | |
49 | #include "objcp-decl.h" | |
50 | #endif /* OBJCPLUS */ | |
51 | ||
d764a8e6 | 52 | #include "target.h" |
d764a8e6 | 53 | #include "tree-iterator.h" |
816da497 | 54 | #include "opts.h" |
d764a8e6 | 55 | |
d764a8e6 | 56 | #include "objc-runtime-hooks.h" |
d764a8e6 | 57 | #include "objc-runtime-shared-support.h" |
c9419fae | 58 | #include "objc-next-metadata-tags.h" |
f027ee7c | 59 | #include "objc-encoding.h" |
d764a8e6 IS |
60 | |
61 | /* ABI 2 Private definitions. */ | |
62 | #define DEF_CONSTANT_STRING_CLASS_NAME "NSConstantString" | |
63 | ||
64 | #define TAG_GETCLASS "objc_getClass" | |
65 | #define TAG_GETMETACLASS "objc_getMetaClass" | |
66 | ||
67 | #define TAG_MSGSEND "objc_msgSend" | |
3ba0afac IS |
68 | #define TAG_MSGSENDID "objc_msgSendId" |
69 | #define TAG_MSGSENDSUPER "objc_msgSendSuper2" | |
d764a8e6 | 70 | #define TAG_MSGSEND_STRET "objc_msgSend_stret" |
3ba0afac IS |
71 | #define TAG_MSGSENDID_STRET "objc_msgSendId_stret" |
72 | #define TAG_MSGSENDSUPER_STRET "objc_msgSendSuper2_stret" | |
73 | ||
8703bf5d | 74 | #define USE_FIXUP_BEFORE 100600 |
3ba0afac IS |
75 | #define TAG_FIXUP "_fixup" |
76 | ||
d764a8e6 IS |
77 | |
78 | #define TAG_NEXT_EHVTABLE_NAME "objc_ehtype_vtable" | |
79 | #define TAG_V2_EH_TYPE "objc_ehtype_t" | |
80 | ||
81 | #define UTAG_V2_CLASS "_class_t" | |
82 | #define UTAG_V2_CLASS_RO "_class_ro_t" | |
83 | #define UTAG_V2_PROTOCOL "_protocol_t" | |
84 | #define UTAG_V2_PROTOCOL_LIST "_protocol_list_t" | |
85 | ||
86 | #define UTAG_V2_EH_TYPE "_objc_ehtype_t" | |
87 | ||
88 | #define OBJC2_CLS_HAS_CXX_STRUCTORS 0x0004L | |
89 | ||
90 | enum objc_v2_tree_index | |
944fb799 | 91 | { |
d764a8e6 IS |
92 | /* Templates. */ |
93 | OCTI_V2_CLS_TEMPL, | |
94 | OCTI_V2_CAT_TEMPL, | |
95 | OCTI_V2_CLS_RO_TEMPL, | |
96 | OCTI_V2_PROTO_TEMPL, | |
97 | OCTI_V2_IVAR_TEMPL, | |
98 | OCTI_V2_IVAR_LIST_TEMPL, | |
99 | OCTI_V2_MESSAGE_REF_TEMPL, | |
100 | OCTI_V2_SUPER_MESSAGE_REF_TEMPL, | |
944fb799 | 101 | |
d764a8e6 IS |
102 | OCTI_V2_MESSAGE_SELECTOR_TYPE, |
103 | OCTI_V2_SUPER_MESSAGE_SELECTOR_TYPE, | |
104 | OCTI_V2_IMP_TYPE, | |
105 | OCTI_V2_SUPER_IMP_TYPE, | |
106 | ||
107 | OCTI_V2_CACHE_DECL, | |
108 | OCTI_V2_VTABLE_DECL, | |
109 | ||
110 | OCTI_V2_PROPERTY_TEMPL, | |
944fb799 | 111 | |
d764a8e6 IS |
112 | /* V2 messaging. */ |
113 | OCTI_V2_UMSG_FIXUP_DECL, | |
114 | OCTI_V2_UMSG_STRET_FIXUP_DECL, | |
115 | OCTI_V2_UMSG_ID_FIXUP_DECL, | |
116 | OCTI_V2_UMSG_ID_STRET_FIXUP_DECL, | |
117 | OCTI_V2_UMSG_SUPER2_FIXUP_DECL, | |
118 | OCTI_V2_UMSG_SUPER2_STRET_FIXUP_DECL, | |
944fb799 | 119 | |
d764a8e6 IS |
120 | /* Exceptions - related. */ |
121 | OCTI_V2_BEGIN_CATCH_DECL, | |
122 | OCTI_V2_END_CATCH_DECL, | |
123 | OCTI_V2_RETHROW_DECL, | |
944fb799 | 124 | |
d764a8e6 IS |
125 | OCTI_V2_MAX |
126 | }; | |
127 | ||
128 | #define objc_v2_class_template objc_v2_global_trees[OCTI_V2_CLS_TEMPL] | |
129 | #define objc_v2_class_ro_template \ | |
130 | objc_v2_global_trees[OCTI_V2_CLS_RO_TEMPL] | |
131 | #define objc_v2_category_template \ | |
132 | objc_v2_global_trees[OCTI_V2_CAT_TEMPL] | |
133 | #define objc_v2_protocol_template \ | |
134 | objc_v2_global_trees[OCTI_V2_PROTO_TEMPL] | |
135 | ||
136 | /* struct message_ref_t */ | |
137 | #define objc_v2_message_ref_template \ | |
944fb799 | 138 | objc_v2_global_trees[OCTI_V2_MESSAGE_REF_TEMPL] |
d764a8e6 IS |
139 | |
140 | #define objc_v2_ivar_list_ptr objc_v2_global_trees[OCTI_V2_IVAR_LIST_TEMPL] | |
141 | ||
142 | /* struct super_message_ref_t */ | |
143 | #define objc_v2_super_message_ref_template \ | |
944fb799 | 144 | objc_v2_global_trees[OCTI_V2_SUPER_MESSAGE_REF_TEMPL] |
d764a8e6 IS |
145 | |
146 | /* struct message_ref_t* */ | |
944fb799 | 147 | #define objc_v2_selector_type objc_v2_global_trees[OCTI_V2_MESSAGE_SELECTOR_TYPE] |
d764a8e6 IS |
148 | /* struct super_super_message_ref_t */ |
149 | #define objc_v2_super_selector_type \ | |
944fb799 | 150 | objc_v2_global_trees[OCTI_V2_SUPER_MESSAGE_SELECTOR_TYPE] |
d764a8e6 | 151 | #define objc_v2_imp_type objc_v2_global_trees[OCTI_V2_IMP_TYPE] |
944fb799 | 152 | #define objc_v2_super_imp_type objc_v2_global_trees[OCTI_V2_SUPER_IMP_TYPE] |
d764a8e6 IS |
153 | |
154 | #define UOBJC_V2_CACHE_decl objc_v2_global_trees[OCTI_V2_CACHE_DECL] | |
155 | #define UOBJC_V2_VTABLE_decl objc_v2_global_trees[OCTI_V2_VTABLE_DECL] | |
156 | ||
157 | #define objc_v2_ivar_template objc_v2_global_trees[OCTI_V2_IVAR_TEMPL] | |
158 | #define objc_v2_property_template \ | |
159 | objc_v2_global_trees[OCTI_V2_PROPERTY_TEMPL] | |
160 | ||
161 | /* V2 Messaging */ | |
162 | ||
163 | /* objc_msgSend_fixup_rtp */ | |
944fb799 | 164 | #define umsg_fixup_decl objc_v2_global_trees[OCTI_V2_UMSG_FIXUP_DECL] |
d764a8e6 | 165 | /* objc_msgSend_stret_fixup_rtp */ |
944fb799 | 166 | #define umsg_stret_fixup_decl objc_v2_global_trees[OCTI_V2_UMSG_STRET_FIXUP_DECL] |
d764a8e6 | 167 | /* objc_msgSendId_fixup_rtp */ |
944fb799 | 168 | #define umsg_id_fixup_decl objc_v2_global_trees[OCTI_V2_UMSG_ID_FIXUP_DECL] |
d764a8e6 IS |
169 | /* objc_msgSendId_stret_fixup_rtp */ |
170 | #define umsg_id_stret_fixup_decl \ | |
944fb799 | 171 | objc_v2_global_trees[OCTI_V2_UMSG_ID_STRET_FIXUP_DECL] |
d764a8e6 IS |
172 | /* objc_msgSendSuper2_fixup_rtp */ |
173 | #define umsg_id_super2_fixup_decl \ | |
174 | objc_v2_global_trees[OCTI_V2_UMSG_SUPER2_FIXUP_DECL] | |
175 | /* objc_msgSendSuper2_stret_fixup_rtp */ | |
176 | #define umsg_id_super2_stret_fixup_decl \ | |
177 | objc_v2_global_trees[OCTI_V2_UMSG_SUPER2_STRET_FIXUP_DECL] | |
178 | ||
179 | #define objc2_begin_catch_decl objc_v2_global_trees[OCTI_V2_BEGIN_CATCH_DECL] | |
180 | #define objc2_end_catch_decl objc_v2_global_trees[OCTI_V2_END_CATCH_DECL] | |
181 | #define objc_rethrow_exception_decl \ | |
182 | objc_v2_global_trees[OCTI_V2_RETHROW_DECL] | |
183 | ||
d764a8e6 IS |
184 | /* The OCTI_V2_... enumeration itself is in above. */ |
185 | static GTY(()) tree objc_v2_global_trees[OCTI_V2_MAX]; | |
186 | ||
187 | static void next_runtime_02_initialize (void); | |
188 | ||
189 | static void build_v2_message_ref_templates (void); | |
190 | static void build_v2_class_templates (void); | |
191 | static void build_v2_super_template (void); | |
192 | static void build_v2_category_template (void); | |
193 | static void build_v2_protocol_template (void); | |
194 | ||
195 | static tree next_runtime_abi_02_super_superclassfield_id (void); | |
196 | ||
197 | static tree next_runtime_abi_02_class_decl (tree); | |
198 | static tree next_runtime_abi_02_metaclass_decl (tree); | |
199 | static tree next_runtime_abi_02_category_decl (tree); | |
200 | static tree next_runtime_abi_02_protocol_decl (tree); | |
201 | static tree next_runtime_abi_02_string_decl (tree, const char *, string_section); | |
202 | ||
203 | static tree next_runtime_abi_02_get_class_reference (tree); | |
204 | static tree next_runtime_abi_02_build_selector_reference (location_t, tree, tree); | |
205 | static tree next_runtime_abi_02_get_protocol_reference (location_t, tree); | |
206 | static tree next_runtime_abi_02_build_ivar_ref (location_t, tree, tree); | |
207 | static tree next_runtime_abi_02_get_class_super_ref (location_t, struct imp_entry *, bool); | |
208 | static tree next_runtime_abi_02_get_category_super_ref (location_t, struct imp_entry *, bool); | |
209 | ||
210 | static tree next_runtime_abi_02_receiver_is_class_object (tree); | |
9771b263 DN |
211 | static void next_runtime_abi_02_get_arg_type_list_base (vec<tree, va_gc> **, |
212 | tree, int, int); | |
d764a8e6 IS |
213 | static tree next_runtime_abi_02_build_objc_method_call (location_t, tree, tree, |
214 | tree, tree, tree, int); | |
215 | static bool next_runtime_abi_02_setup_const_string_class_decl (void); | |
216 | static tree next_runtime_abi_02_build_const_string_constructor (location_t, tree, int); | |
217 | ||
218 | static tree create_extern_decl (tree, const char *); | |
219 | ||
220 | static void objc_generate_v2_next_metadata (void); | |
221 | static bool objc2_objc_exception_attr (tree); | |
222 | ||
223 | /* void build_v2_protocol_reference (tree);*/ | |
224 | static void build_v2_ehtype_template (void); | |
225 | static void build_v2_eh_catch_objects (void); | |
226 | static tree next_runtime_02_eh_type (tree); | |
227 | static tree objc_eh_personality (void); | |
228 | static tree build_throw_stmt (location_t, tree, bool); | |
229 | static tree objc_build_exc_ptr (struct objc_try_context **); | |
230 | static tree begin_catch (struct objc_try_context **, tree, tree, tree, bool); | |
231 | static void finish_catch (struct objc_try_context **, tree); | |
232 | static tree finish_try_stmt (struct objc_try_context **); | |
233 | ||
3cc2dd4b | 234 | /* TODO: Use an objc-map. */ |
d764a8e6 IS |
235 | static GTY ((length ("SIZEHASHTABLE"))) hash *extern_names; |
236 | ||
944fb799 | 237 | bool |
d764a8e6 IS |
238 | objc_next_runtime_abi_02_init (objc_runtime_hooks *rthooks) |
239 | { | |
766090c2 | 240 | extern_names = ggc_cleared_vec_alloc<hash> (SIZEHASHTABLE); |
d764a8e6 | 241 | |
79866639 | 242 | if (flag_objc_sjlj_exceptions) |
d764a8e6 | 243 | { |
a9c697b8 MS |
244 | inform (UNKNOWN_LOCATION, |
245 | "%<-fobjc-sjlj-exceptions%> is ignored for " | |
246 | "%<-fnext-runtime%> when %<-fobjc-abi-version%> " | |
247 | "greater than 1"); | |
d764a8e6 IS |
248 | flag_objc_sjlj_exceptions = 0; |
249 | } | |
250 | ||
de0b250b | 251 | /* NeXT ABI 2 is intended to default to checking for nil receivers. */ |
00f34291 | 252 | if (! OPTION_SET_P (flag_objc_nilcheck)) |
de0b250b IS |
253 | flag_objc_nilcheck = 1; |
254 | ||
d764a8e6 IS |
255 | rthooks->initialize = next_runtime_02_initialize; |
256 | rthooks->default_constant_string_class_name = DEF_CONSTANT_STRING_CLASS_NAME; | |
257 | rthooks->tag_getclass = TAG_GETCLASS; | |
258 | rthooks->super_superclassfield_ident = next_runtime_abi_02_super_superclassfield_id; | |
259 | ||
260 | rthooks->class_decl = next_runtime_abi_02_class_decl; | |
261 | rthooks->metaclass_decl = next_runtime_abi_02_metaclass_decl; | |
262 | rthooks->category_decl = next_runtime_abi_02_category_decl; | |
263 | rthooks->protocol_decl = next_runtime_abi_02_protocol_decl; | |
264 | rthooks->string_decl = next_runtime_abi_02_string_decl; | |
265 | ||
266 | rthooks->get_class_reference = next_runtime_abi_02_get_class_reference; | |
267 | rthooks->build_selector_reference = next_runtime_abi_02_build_selector_reference; | |
268 | rthooks->get_protocol_reference = next_runtime_abi_02_get_protocol_reference; | |
269 | rthooks->build_ivar_reference = next_runtime_abi_02_build_ivar_ref; | |
270 | rthooks->get_class_super_ref = next_runtime_abi_02_get_class_super_ref; | |
271 | rthooks->get_category_super_ref = next_runtime_abi_02_get_category_super_ref; | |
272 | ||
273 | rthooks->receiver_is_class_object = next_runtime_abi_02_receiver_is_class_object; | |
274 | rthooks->get_arg_type_list_base = next_runtime_abi_02_get_arg_type_list_base; | |
275 | rthooks->build_objc_method_call = next_runtime_abi_02_build_objc_method_call; | |
276 | ||
277 | rthooks->setup_const_string_class_decl = | |
278 | next_runtime_abi_02_setup_const_string_class_decl; | |
279 | rthooks->build_const_string_constructor = | |
280 | next_runtime_abi_02_build_const_string_constructor; | |
281 | ||
282 | rthooks->build_throw_stmt = build_throw_stmt; | |
283 | rthooks->build_exc_ptr = objc_build_exc_ptr; | |
284 | rthooks->begin_catch = begin_catch; | |
285 | rthooks->finish_catch = finish_catch; | |
286 | rthooks->finish_try_stmt = finish_try_stmt; | |
287 | ||
288 | rthooks->generate_metadata = objc_generate_v2_next_metadata; | |
289 | return true; | |
290 | } | |
291 | ||
292 | /* We need a way to convey what kind of meta-data are represented by a given | |
293 | variable, since each type is expected (by the runtime) to be found in a | |
294 | specific named section. The solution must be usable with LTO. | |
944fb799 | 295 | |
d764a8e6 IS |
296 | The scheme used for NeXT ABI 0/1 (partial matching of variable names) is not |
297 | satisfactory when LTO is used with ABI-2. We now tag ObjC meta-data with | |
298 | identification attributes in the front end. The back-end may choose to act | |
299 | on these as it requires. */ | |
300 | ||
301 | static void | |
302 | next_runtime_abi_02_init_metadata_attributes (void) | |
303 | { | |
304 | if (!objc_meta) | |
305 | objc_meta = get_identifier ("OBJC2META"); | |
306 | ||
307 | if (!meta_base) | |
308 | meta_base = get_identifier ("V2_BASE"); | |
309 | ||
310 | meta_class = get_identifier ("G2_CLAS"); | |
311 | meta_metaclass = get_identifier ("G2_META"); | |
ecd616f6 IS |
312 | meta_category = meta_base; |
313 | meta_protocol = get_identifier ("V2_PCOL"); | |
d764a8e6 IS |
314 | |
315 | meta_clac_vars = | |
316 | meta_clai_vars = meta_base; | |
317 | ||
318 | meta_clac_meth = | |
319 | meta_clai_meth = | |
320 | meta_catc_meth = | |
944fb799 | 321 | meta_cati_meth = |
d764a8e6 IS |
322 | meta_proto_cls_meth = |
323 | meta_proto_nst_meth = meta_base; | |
324 | ||
325 | meta_clas_prot = | |
326 | meta_catg_prot = meta_base; | |
327 | ||
328 | meta_sel_refs = get_identifier ("V2_SRFS"); | |
329 | ||
a788c455 IS |
330 | meta_class_name = get_identifier ("V2_CNAM"); |
331 | meta_meth_name = get_identifier ("V2_MNAM"); | |
332 | ||
333 | meta_meth_type = get_identifier ("V2_MTYP"); | |
d764a8e6 IS |
334 | meta_prop_name_attr = get_identifier ("V2_STRG"); |
335 | ||
336 | meta_mref = get_identifier ("V2_MREF"); | |
337 | meta_class_ref = get_identifier ("V2_CLRF"); | |
338 | meta_superclass_ref = get_identifier ("V2_SURF"); | |
339 | ||
340 | meta_label_classlist = get_identifier ("V2_CLAB"); | |
341 | meta_label_nonlazy_classlist = get_identifier ("V2_NLCL"); | |
342 | meta_label_categorylist = get_identifier ("V2_CALA"); | |
343 | meta_label_nonlazy_categorylist = get_identifier ("V2_NLCA"); | |
344 | ||
345 | meta_label_protocollist = get_identifier ("V2_PLST"); | |
346 | meta_proto_ref = get_identifier ("V2_PRFS"); | |
347 | ||
348 | meta_info = get_identifier ("V2_INFO"); | |
349 | ||
350 | meta_ehtype = get_identifier ("V2_EHTY"); | |
351 | ||
352 | meta_const_str = get_identifier ("V2_CSTR"); | |
eb870e5e IS |
353 | |
354 | meta_ivar_ref = get_identifier ("V2_IVRF"); | |
d764a8e6 IS |
355 | } |
356 | ||
357 | static void next_runtime_02_initialize (void) | |
358 | { | |
359 | tree type; | |
360 | #ifdef OBJCPLUS | |
c2beaa02 NP |
361 | /* For all NeXT objc ABIs -fobjc-call-cxx-cdtors is on by |
362 | default. */ | |
00f34291 | 363 | if (!OPTION_SET_P (flag_objc_call_cxx_cdtors)) |
d764a8e6 IS |
364 | global_options.x_flag_objc_call_cxx_cdtors = 1; |
365 | #endif | |
366 | ||
367 | /* Set up attributes to be attached to the meta-data so that they | |
368 | will be placed in the correct sections. */ | |
369 | next_runtime_abi_02_init_metadata_attributes (); | |
370 | ||
371 | /* `struct objc_selector *' */ | |
372 | objc_selector_type = build_pointer_type (xref_tag (RECORD_TYPE, | |
373 | get_identifier (TAG_SELECTOR))); | |
374 | ||
bb93020f IS |
375 | /* SEL typedef. */ |
376 | type = lang_hooks.decls.pushdecl (build_decl (input_location, | |
377 | TYPE_DECL, | |
378 | objc_selector_name, | |
379 | objc_selector_type)); | |
ed94172c | 380 | suppress_warning (type); |
bb93020f | 381 | |
d764a8e6 IS |
382 | /* IMP : id (*) (id, _message_ref_t*, ...) |
383 | SUPER_IMP : id (*) ( super_t*, _super_message_ref_t*, ...) | |
384 | objc_v2_selector_type. */ | |
385 | build_v2_message_ref_templates (); | |
386 | ||
944fb799 MS |
387 | objc_v2_ivar_list_ptr = |
388 | build_pointer_type (xref_tag (RECORD_TYPE, | |
d764a8e6 IS |
389 | get_identifier ("_ivar_list_t"))); |
390 | ||
944fb799 | 391 | objc_prop_list_ptr = |
d764a8e6 IS |
392 | build_pointer_type (xref_tag (RECORD_TYPE, |
393 | get_identifier ("_prop_list_t"))); | |
944fb799 | 394 | |
d764a8e6 IS |
395 | build_v2_class_templates (); |
396 | build_v2_super_template (); | |
397 | build_v2_protocol_template (); | |
398 | build_v2_category_template (); | |
399 | ||
8703bf5d | 400 | bool fixup_p = flag_next_runtime < USE_FIXUP_BEFORE; |
3ba0afac IS |
401 | if (fixup_p) |
402 | { | |
403 | /* id objc_msgSend_fixup_rtp (id, struct message_ref_t*, ...); */ | |
404 | type = build_varargs_function_type_list (objc_object_type, | |
405 | objc_object_type, | |
406 | objc_v2_selector_type, | |
407 | NULL_TREE); | |
408 | } | |
409 | else | |
410 | { | |
411 | /* id objc_msgSendXXXX (id, SEL, ...); */ | |
412 | type = build_varargs_function_type_list (objc_object_type, | |
413 | objc_object_type, | |
414 | objc_selector_type, | |
415 | NULL_TREE); | |
416 | } | |
417 | const char *fnam = fixup_p ? TAG_MSGSEND TAG_FIXUP : TAG_MSGSEND; | |
418 | umsg_fixup_decl = add_builtin_function (fnam, type, 0, NOT_BUILT_IN, | |
d764a8e6 IS |
419 | NULL, NULL_TREE); |
420 | TREE_NOTHROW (umsg_fixup_decl) = 0; | |
421 | ||
422 | /* id objc_msgSend_stret_fixup_rtp (id, struct message_ref_t*, ...); */ | |
3ba0afac IS |
423 | fnam = fixup_p ? TAG_MSGSEND_STRET TAG_FIXUP : TAG_MSGSEND_STRET; |
424 | umsg_stret_fixup_decl = add_builtin_function (fnam, type, 0, NOT_BUILT_IN, | |
d764a8e6 IS |
425 | NULL, NULL_TREE); |
426 | TREE_NOTHROW (umsg_stret_fixup_decl) = 0; | |
427 | ||
428 | /* id objc_msgSendId_fixup_rtp (id, struct message_ref_t*, ...); */ | |
3ba0afac IS |
429 | fnam = fixup_p ? TAG_MSGSENDID TAG_FIXUP : TAG_MSGSENDID; |
430 | umsg_id_fixup_decl = add_builtin_function (fnam, type, 0, NOT_BUILT_IN, | |
d764a8e6 IS |
431 | NULL, NULL_TREE); |
432 | TREE_NOTHROW (umsg_id_fixup_decl) = 0; | |
433 | ||
3ba0afac IS |
434 | /* id objc_msgSendId_stret_fixup_rtp (id, struct message_ref_t*, ...); */ |
435 | fnam = fixup_p ? TAG_MSGSENDID_STRET TAG_FIXUP : TAG_MSGSENDID_STRET; | |
436 | umsg_id_stret_fixup_decl = add_builtin_function (fnam, type, 0, NOT_BUILT_IN, | |
d764a8e6 IS |
437 | NULL, NULL_TREE); |
438 | TREE_NOTHROW (umsg_id_stret_fixup_decl) = 0; | |
439 | ||
944fb799 | 440 | /* id objc_msgSendSuper2_fixup_rtp |
d764a8e6 IS |
441 | (struct objc_super *, struct message_ref_t*, ...); */ |
442 | type = build_varargs_function_type_list (objc_object_type, | |
443 | objc_super_type, | |
444 | objc_v2_super_selector_type, | |
445 | NULL_TREE); | |
3ba0afac IS |
446 | fnam = fixup_p ? TAG_MSGSENDSUPER TAG_FIXUP : TAG_MSGSENDSUPER; |
447 | umsg_id_super2_fixup_decl = add_builtin_function (fnam, type, 0, NOT_BUILT_IN, | |
d764a8e6 IS |
448 | NULL, NULL_TREE); |
449 | TREE_NOTHROW (umsg_id_super2_fixup_decl) = 0; | |
450 | ||
944fb799 | 451 | /* id objc_msgSendSuper2_stret_fixup_rtp |
d764a8e6 | 452 | (struct objc_super *, struct message_ref_t*, ...); */ |
3ba0afac IS |
453 | fnam = fixup_p ? TAG_MSGSENDSUPER_STRET TAG_FIXUP : TAG_MSGSENDSUPER_STRET; |
454 | umsg_id_super2_stret_fixup_decl = add_builtin_function (fnam, type, 0, | |
455 | NOT_BUILT_IN, NULL, | |
456 | NULL_TREE); | |
d764a8e6 IS |
457 | TREE_NOTHROW (umsg_id_super2_stret_fixup_decl) = 0; |
458 | ||
459 | /* Present in the library, but unused by the FE. */ | |
944fb799 | 460 | /* Protocol *objc_getProtocol (const char *) |
d764a8e6 IS |
461 | type = build_function_type_list (objc_protocol_type, |
462 | const_string_type_node, | |
463 | NULL_TREE); | |
464 | objc_v2_getprotocol_decl = add_builtin_function ("objc_getProtocol", | |
465 | type, 0, NOT_BUILT_IN, | |
466 | NULL, NULL_TREE); | |
467 | TREE_NOTHROW (objc_v2_getprotocol_decl) = 0;*/ | |
468 | ||
469 | UOBJC_V2_CACHE_decl = create_extern_decl (ptr_type_node, | |
470 | "_objc_empty_cache"); | |
471 | ||
472 | UOBJC_V2_VTABLE_decl = create_extern_decl (objc_v2_imp_type, | |
473 | "_objc_empty_vtable"); | |
474 | ||
475 | /* id objc_getClass (const char *); */ | |
476 | type = build_function_type_list (objc_object_type, | |
477 | const_string_type_node, | |
478 | NULL_TREE); | |
944fb799 | 479 | objc_get_class_decl = add_builtin_function (TAG_GETCLASS, |
d764a8e6 IS |
480 | type, 0, NOT_BUILT_IN, |
481 | NULL, NULL_TREE); | |
482 | ||
483 | /* id objc_getMetaClass (const char *); */ | |
944fb799 | 484 | objc_get_meta_class_decl = add_builtin_function (TAG_GETMETACLASS, |
d764a8e6 IS |
485 | type, 0, NOT_BUILT_IN, |
486 | NULL, NULL_TREE); | |
487 | ||
c2beaa02 NP |
488 | /* This is the type of all of the following functions |
489 | objc_copyStruct(). */ | |
d764a8e6 IS |
490 | type = build_function_type_list (void_type_node, |
491 | ptr_type_node, | |
492 | const_ptr_type_node, | |
944fb799 | 493 | ptrdiff_type_node, |
d764a8e6 IS |
494 | boolean_type_node, |
495 | boolean_type_node, | |
496 | NULL_TREE); | |
497 | /* Declare the following function: | |
498 | void | |
944fb799 | 499 | objc_copyStruct (void *destination, const void *source, |
c2beaa02 | 500 | ptrdiff_t size, BOOL is_atomic, BOOL has_strong); */ |
d764a8e6 IS |
501 | objc_copyStruct_decl = add_builtin_function ("objc_copyStruct", |
502 | type, 0, NOT_BUILT_IN, | |
503 | NULL, NULL_TREE); | |
504 | TREE_NOTHROW (objc_copyStruct_decl) = 0; | |
505 | objc_getPropertyStruct_decl = NULL_TREE; | |
506 | objc_setPropertyStruct_decl = NULL_TREE; | |
507 | ||
79866639 | 508 | gcc_checking_assert (!flag_objc_sjlj_exceptions); |
d764a8e6 | 509 | |
c2beaa02 NP |
510 | /* Although we warn that fobjc-exceptions is required for exceptions |
511 | code, we carry on and create it anyway. */ | |
d764a8e6 IS |
512 | |
513 | /* This can be required, even when exceptions code is not present, | |
c2beaa02 NP |
514 | when an __attribute__((objc_exception)) is applied to a |
515 | class. */ | |
d764a8e6 IS |
516 | build_v2_ehtype_template (); |
517 | ||
518 | /* void * objc_begin_catch (void *) */ | |
491add72 NF |
519 | type = build_function_type_list (ptr_type_node, |
520 | ptr_type_node, NULL_TREE); | |
d764a8e6 IS |
521 | |
522 | objc2_begin_catch_decl = add_builtin_function ("objc_begin_catch", | |
523 | type, 0, NOT_BUILT_IN, | |
524 | NULL, NULL_TREE); | |
525 | TREE_NOTHROW (objc2_begin_catch_decl) = 0; | |
526 | ||
527 | /* void objc_end_catch () */ | |
491add72 | 528 | type = build_function_type_list (void_type_node, NULL_TREE); |
d764a8e6 IS |
529 | objc2_end_catch_decl = add_builtin_function ("objc_end_catch", |
530 | type, 0, NOT_BUILT_IN, | |
531 | NULL, NULL_TREE); | |
532 | TREE_NOTHROW (objc2_end_catch_decl) = 0; | |
533 | ||
534 | /* void objc_exception_rethrow (void) */ | |
944fb799 | 535 | objc_rethrow_exception_decl = |
d764a8e6 IS |
536 | add_builtin_function ("objc_exception_rethrow", |
537 | type, 0, NOT_BUILT_IN, | |
538 | NULL, NULL_TREE); | |
539 | TREE_NOTHROW (objc_rethrow_exception_decl) = 0; | |
540 | using_eh_for_cleanups (); | |
541 | lang_hooks.eh_runtime_type = next_runtime_02_eh_type; | |
542 | lang_hooks.eh_personality = objc_eh_personality; | |
543 | } | |
544 | ||
545 | /* NOTE --- templates --- */ | |
546 | ||
c2beaa02 NP |
547 | /* Set 'objc_v2_message_ref_template' to the data type node for |
548 | 'struct _message_ref_t'. This needs to be done just once per | |
549 | compilation. Also Set 'objc_v2_super_message_ref_template' to data | |
550 | type node for 'struct _super_message_ref_t'. */ | |
d764a8e6 | 551 | |
c2beaa02 NP |
552 | /* struct _message_ref_t |
553 | { | |
d764a8e6 IS |
554 | IMP messenger; |
555 | SEL name; | |
556 | }; | |
557 | where IMP is: id (*) (id, _message_ref_t*, ...) | |
558 | */ | |
559 | ||
c2beaa02 NP |
560 | /* struct _super_message_ref_t |
561 | { | |
d764a8e6 IS |
562 | SUPER_IMP messenger; |
563 | SEL name; | |
564 | }; | |
565 | where SUPER_IMP is: id (*) ( super_t*, _super_message_ref_t*, ...) | |
566 | */ | |
567 | ||
568 | static void | |
569 | build_v2_message_ref_templates (void) | |
570 | { | |
571 | tree ptr_message_ref_t; | |
572 | tree decls, *chain = NULL; | |
573 | ||
574 | /* struct _message_ref_t {...} */ | |
575 | objc_v2_message_ref_template = | |
576 | objc_start_struct (get_identifier ("_message_ref_t")); | |
577 | ||
578 | /* IMP messenger; */ | |
944fb799 MS |
579 | ptr_message_ref_t = |
580 | build_pointer_type (xref_tag (RECORD_TYPE, | |
d764a8e6 IS |
581 | get_identifier ("_message_ref_t"))); |
582 | ||
944fb799 MS |
583 | objc_v2_imp_type = |
584 | build_pointer_type (build_function_type_list | |
d764a8e6 IS |
585 | (objc_object_type, |
586 | objc_object_type, | |
587 | ptr_message_ref_t, | |
588 | NULL_TREE)); | |
589 | ||
590 | decls = add_field_decl (objc_v2_imp_type, "messenger", &chain); | |
591 | ||
592 | /* SEL name; */ | |
593 | add_field_decl (objc_selector_type, "name", &chain); | |
594 | ||
595 | objc_finish_struct (objc_v2_message_ref_template, decls); | |
596 | ||
597 | objc_v2_selector_type = build_pointer_type (objc_v2_message_ref_template); | |
598 | ||
599 | chain = NULL; | |
600 | /* struct _super_message_ref_t {...} */ | |
601 | objc_v2_super_message_ref_template = | |
602 | objc_start_struct (get_identifier ("_super_message_ref_t")); | |
603 | ||
604 | /* SUPER_IMP messenger; */ | |
944fb799 MS |
605 | ptr_message_ref_t = build_pointer_type |
606 | (xref_tag (RECORD_TYPE, | |
d764a8e6 IS |
607 | get_identifier ("_super_message_ref_t"))); |
608 | ||
944fb799 MS |
609 | objc_v2_super_imp_type = |
610 | build_pointer_type (build_function_type_list | |
d764a8e6 IS |
611 | (objc_object_type, |
612 | objc_super_type, | |
613 | ptr_message_ref_t, | |
614 | NULL_TREE)); | |
615 | ||
616 | add_field_decl (objc_v2_super_imp_type, "messenger", &chain); | |
617 | ||
618 | /* SEL name; */ | |
619 | add_field_decl (objc_selector_type, "name", &chain); | |
620 | ||
621 | objc_finish_struct (objc_v2_super_message_ref_template, decls); | |
944fb799 | 622 | objc_v2_super_selector_type = |
d764a8e6 IS |
623 | build_pointer_type (objc_v2_super_message_ref_template); |
624 | } | |
625 | ||
626 | /* Build following types which represent each class implementation. | |
627 | ||
c2beaa02 NP |
628 | struct class_ro_t |
629 | { | |
d764a8e6 IS |
630 | uint32_t const flags; |
631 | uint32_t const instanceStart; | |
632 | uint32_t const instanceSize; | |
633 | #ifdef __LP64__ | |
634 | uint32_t const reserved; | |
635 | #endif | |
636 | const uint8_t * const ivarLayout; | |
637 | const char *const name; | |
638 | const struct method_list_t * const baseMethods; | |
639 | const struct objc_protocol_list *const baseProtocols; | |
640 | const struct ivar_list_t *const ivars; | |
641 | const uint8_t * const weakIvarLayout; | |
642 | const struct _prop_list_t * const properties; | |
643 | }; | |
644 | ||
c2beaa02 NP |
645 | struct class_t |
646 | { | |
d764a8e6 IS |
647 | struct class_t *isa; |
648 | struct class_t *superclass; | |
649 | void *cache; | |
650 | IMP *vtable; | |
944fb799 | 651 | |
d764a8e6 IS |
652 | ...When this is active - it will point to a rw version, but |
653 | when we build the meta-data we point it to the ro... | |
654 | struct class_ro_t *data; | |
655 | }; | |
656 | ||
657 | */ | |
658 | ||
659 | static void | |
660 | build_v2_class_templates (void) | |
661 | { | |
662 | tree cnst_strg_type; | |
663 | tree decls, *chain = NULL; | |
664 | ||
665 | /* struct class_ro_t {...} */ | |
944fb799 | 666 | objc_v2_class_ro_template = |
d764a8e6 IS |
667 | objc_start_struct (get_identifier (UTAG_V2_CLASS_RO)); |
668 | ||
669 | /* uint32_t const flags; */ | |
670 | decls = add_field_decl (integer_type_node, "flags", &chain); | |
671 | ||
c2beaa02 | 672 | /* uint32_t const instanceStart; */ |
d764a8e6 IS |
673 | add_field_decl (integer_type_node, "instanceStart", &chain); |
674 | ||
c2beaa02 | 675 | /* uint32_t const instanceSize; */ |
d764a8e6 IS |
676 | add_field_decl (integer_type_node, "instanceSize", &chain); |
677 | ||
c2beaa02 NP |
678 | /* This ABI is currently only used on m64 NeXT. We always |
679 | explicitly declare the alignment padding. */ | |
680 | /* uint32_t const reserved; */ | |
d764a8e6 IS |
681 | add_field_decl (integer_type_node, "reserved", &chain); |
682 | ||
c2beaa02 | 683 | /* const uint8_t * const ivarLayout; */ |
d764a8e6 IS |
684 | cnst_strg_type = build_pointer_type (unsigned_char_type_node); |
685 | add_field_decl (cnst_strg_type, "ivarLayout", &chain); | |
686 | ||
687 | /* const char *const name; */ | |
688 | add_field_decl (string_type_node, "name", &chain); | |
689 | ||
c2beaa02 | 690 | /* const struct method_list_t * const baseMethods; */ |
d764a8e6 IS |
691 | add_field_decl (objc_method_list_ptr, "baseMethods", &chain); |
692 | ||
c2beaa02 | 693 | /* const struct objc_protocol_list *const baseProtocols; */ |
944fb799 MS |
694 | add_field_decl (build_pointer_type |
695 | (xref_tag (RECORD_TYPE, | |
d764a8e6 IS |
696 | get_identifier (UTAG_V2_PROTOCOL_LIST))), |
697 | "baseProtocols", &chain); | |
698 | ||
c2beaa02 | 699 | /* const struct ivar_list_t *const ivars; */ |
944fb799 | 700 | add_field_decl (objc_v2_ivar_list_ptr, "ivars", &chain); |
d764a8e6 IS |
701 | |
702 | /* const uint8_t * const weakIvarLayout; */ | |
703 | add_field_decl (cnst_strg_type, "weakIvarLayout", &chain); | |
704 | ||
c2beaa02 | 705 | /* struct _prop_list_t * baseProperties; */ |
d764a8e6 IS |
706 | add_field_decl (objc_prop_list_ptr, "baseProperties", &chain); |
707 | ||
708 | objc_finish_struct (objc_v2_class_ro_template, decls); | |
709 | ||
710 | chain = NULL; | |
711 | /* struct class_t {...} */ | |
944fb799 | 712 | objc_v2_class_template = |
d764a8e6 IS |
713 | objc_start_struct (get_identifier (UTAG_V2_CLASS)); |
714 | ||
715 | /* struct class_t *isa; */ | |
716 | decls = add_field_decl (build_pointer_type (objc_v2_class_template), | |
717 | "isa", &chain); | |
718 | ||
c2beaa02 | 719 | /* struct class_t * const superclass; */ |
d764a8e6 IS |
720 | add_field_decl (build_pointer_type (objc_v2_class_template), |
721 | "superclass", &chain); | |
722 | ||
723 | /* void *cache; */ | |
724 | add_field_decl (build_pointer_type (void_type_node), "cache", &chain); | |
725 | ||
726 | /* IMP *vtable; */ | |
727 | add_field_decl (build_pointer_type (objc_v2_imp_type), "vtable", &chain); | |
728 | ||
729 | /* struct class_ro_t *ro; */ | |
944fb799 | 730 | add_field_decl (build_pointer_type (objc_v2_class_ro_template), "ro", &chain); |
d764a8e6 IS |
731 | |
732 | objc_finish_struct (objc_v2_class_template, decls); | |
733 | } | |
734 | ||
c2beaa02 NP |
735 | /* struct _objc_super |
736 | { | |
d764a8e6 IS |
737 | struct _objc_object *self; |
738 | Class cls; | |
c2beaa02 | 739 | }; */ |
d764a8e6 IS |
740 | void |
741 | build_v2_super_template (void) | |
742 | { | |
743 | tree decls, *chain = NULL; | |
744 | ||
745 | objc_super_template = objc_start_struct (get_identifier (UTAG_SUPER)); | |
746 | ||
747 | /* struct _objc_object *self; */ | |
748 | decls = add_field_decl (objc_object_type, "self", &chain); | |
749 | ||
750 | /* Class cls; */ | |
751 | add_field_decl (objc_class_type, "cls", &chain); | |
752 | ||
753 | objc_finish_struct (objc_super_template, decls); | |
754 | } | |
755 | ||
c2beaa02 NP |
756 | /* struct protocol_t |
757 | { | |
944fb799 | 758 | Class isa; |
d764a8e6 IS |
759 | const char * const protocol_name; |
760 | const struct protocol_list_t * const protocol_list; | |
761 | const struct method_list_t * const instance_methods; | |
762 | const struct method_list_t * const class_methods; | |
763 | const struct method_list_t * optionalInstanceMethods; | |
764 | const struct method_list_t * optionalClassMethod | |
765 | const struct _prop_list_t * const properties; | |
766 | const uint32_t size; | |
767 | const uint32_t flags; | |
6224a8aa IS |
768 | const char ** extended_method_types; |
769 | const char * demangled_name; | |
770 | const struct _prop_list_t * class_properties; | |
d764a8e6 IS |
771 | } |
772 | */ | |
773 | static void | |
774 | build_v2_protocol_template (void) | |
775 | { | |
776 | tree decls, *chain = NULL; | |
777 | ||
944fb799 | 778 | objc_v2_protocol_template = |
d764a8e6 IS |
779 | objc_start_struct (get_identifier (UTAG_V2_PROTOCOL)); |
780 | ||
c2beaa02 | 781 | /* Class isa; */ |
d764a8e6 IS |
782 | decls = add_field_decl (objc_object_type, "isa", &chain); |
783 | ||
c2beaa02 | 784 | /* char *protocol_name; */ |
d764a8e6 IS |
785 | add_field_decl (string_type_node, "protocol_name", &chain); |
786 | ||
787 | /* const struct protocol_list_t * const protocol_list; */ | |
788 | add_field_decl (build_pointer_type (objc_v2_protocol_template), | |
789 | "protocol_list", &chain); | |
790 | ||
791 | /* const struct method_list_t * const instance_methods; */ | |
792 | add_field_decl (objc_method_proto_list_ptr, "instance_methods", &chain); | |
793 | ||
794 | /* const struct method_list_t * const class_methods; */ | |
795 | add_field_decl (objc_method_proto_list_ptr, "class_methods", &chain); | |
796 | ||
c2beaa02 | 797 | /* const struct method_list_t * optionalInstanceMethods; */ |
d764a8e6 IS |
798 | add_field_decl (objc_method_proto_list_ptr, "optionalInstanceMethods", &chain); |
799 | ||
c2beaa02 | 800 | /* const struct method_list_t * optionalClassMethods; */ |
d764a8e6 IS |
801 | add_field_decl (objc_method_proto_list_ptr, "optionalClassMethods", &chain); |
802 | ||
803 | /* struct _prop_list_t * properties; */ | |
804 | add_field_decl (objc_prop_list_ptr, "properties", &chain); | |
805 | ||
c2beaa02 | 806 | /* const uint32_t size; */ |
d764a8e6 IS |
807 | add_field_decl (integer_type_node, "size", &chain); |
808 | ||
c2beaa02 | 809 | /* const uint32_t flags; */ |
d764a8e6 IS |
810 | add_field_decl (integer_type_node, "flags", &chain); |
811 | ||
6224a8aa IS |
812 | /* const char **extendedMethodTypes; */ |
813 | tree ptr_to_ptr_to_char = build_pointer_type (string_type_node); | |
814 | add_field_decl (ptr_to_ptr_to_char, "extended_method_types", &chain); | |
815 | ||
816 | /* const char *demangledName; */ | |
817 | add_field_decl (string_type_node, "demangled_name", &chain); | |
818 | ||
819 | /* const struct _prop_list_t *class_properties; */ | |
820 | add_field_decl (objc_prop_list_ptr, "class_properties", &chain); | |
821 | ||
d764a8e6 IS |
822 | objc_finish_struct (objc_v2_protocol_template, decls); |
823 | } | |
824 | ||
825 | /* Build type for a category: | |
c2beaa02 NP |
826 | struct category_t |
827 | { | |
d764a8e6 IS |
828 | const char * const name; |
829 | struct class_t *const cls; | |
830 | const struct method_list_t * const instance_methods; | |
831 | const struct method_list_t * const class_methods; | |
832 | const struct protocol_list_t * const protocols; | |
833 | const struct _prop_list_t * const properties; | |
834 | } | |
835 | */ | |
836 | ||
837 | static void | |
838 | build_v2_category_template (void) | |
839 | { | |
840 | tree decls, *chain = NULL; | |
841 | ||
944fb799 | 842 | objc_v2_category_template = |
d764a8e6 IS |
843 | objc_start_struct (get_identifier ("_category_t")); |
844 | ||
845 | /* char *name; */ | |
846 | decls = add_field_decl (string_type_node, "name", &chain); | |
847 | ||
848 | /* struct class_t *const cls; */ | |
849 | add_field_decl (build_pointer_type (objc_v2_class_template), "cls", &chain); | |
850 | ||
851 | /* struct method_list_t *instance_methods; */ | |
852 | add_field_decl (objc_method_list_ptr, "instance_methods", &chain); | |
853 | ||
854 | /* struct method_list_t *class_methods; */ | |
855 | add_field_decl (objc_method_list_ptr, "class_methods", &chain); | |
856 | ||
857 | /* struct protocol_list_t *protocol_list; */ | |
858 | add_field_decl (build_pointer_type (objc_v2_protocol_template), | |
859 | "protocol_list", &chain ); | |
860 | ||
861 | /* struct _prop_list_t * properties; */ | |
862 | add_field_decl (objc_prop_list_ptr, "properties", &chain); | |
863 | ||
864 | objc_finish_struct (objc_v2_category_template, decls); | |
865 | } | |
866 | ||
867 | /* NOTE --- Decls, Identifiers, Names etc. --- */ | |
868 | ||
c2beaa02 NP |
869 | /* This routine is given a name and returns a matching extern variable |
870 | if one is found. */ | |
d764a8e6 IS |
871 | |
872 | static tree | |
873 | hash_name_lookup (hash *hashlist, tree name) | |
874 | { | |
875 | hash target; | |
876 | ||
877 | target = hashlist[IDENTIFIER_HASH_VALUE (name) % SIZEHASHTABLE]; | |
878 | ||
879 | while (target) | |
880 | { | |
881 | if (name == DECL_NAME (target->key)) | |
882 | return target->key; | |
883 | ||
884 | target = target->next; | |
885 | } | |
886 | return 0; | |
887 | } | |
888 | ||
c2beaa02 NP |
889 | /* This routine is given an extern variable and enters it in its hash |
890 | table. Note that hashing is done on its inner IDENTIFIER_NODE | |
891 | node. */ | |
d764a8e6 | 892 | |
944fb799 | 893 | static void |
d764a8e6 IS |
894 | hash_name_enter (hash *hashlist, tree id) |
895 | { | |
896 | hash obj; | |
897 | int slot = IDENTIFIER_HASH_VALUE (DECL_NAME (id)) % SIZEHASHTABLE; | |
898 | ||
766090c2 | 899 | obj = ggc_alloc<hashed_entry> (); |
d764a8e6 IS |
900 | obj->list = 0; |
901 | obj->next = hashlist[slot]; | |
902 | obj->key = id; | |
903 | ||
904 | hashlist[slot] = obj; /* append to front */ | |
905 | } | |
906 | ||
907 | /* Create a declaration "extern <type> <name>;" | |
908 | The var will need to be finalized (e.g. by calling finish_var_decl()). */ | |
909 | ||
910 | static tree | |
911 | create_extern_decl (tree type, const char *name) | |
912 | { | |
913 | tree id = get_identifier (name); | |
914 | tree var = hash_name_lookup (extern_names, id); | |
915 | if (var) | |
916 | return var; | |
917 | /* New name. */ | |
944fb799 | 918 | var = start_var_decl (type, name); |
d764a8e6 IS |
919 | TREE_STATIC (var) = 0; |
920 | DECL_EXTERNAL (var) = 1; | |
921 | TREE_PUBLIC (var) = 1; | |
922 | hash_name_enter (extern_names, var); | |
923 | return var; | |
924 | } | |
925 | ||
926 | /* Create a globally visible definition for variable NAME of a given TYPE. The | |
927 | finish_var_decl() routine will need to be called on it afterwards. */ | |
07c7498d IS |
928 | static tree |
929 | create_global_decl (tree type, const char *name, bool is_def = false); | |
d764a8e6 IS |
930 | |
931 | static tree | |
07c7498d | 932 | create_global_decl (tree type, const char *name, bool is_def) |
d764a8e6 IS |
933 | { |
934 | tree id = get_identifier (name); | |
935 | tree var = hash_name_lookup (extern_names, id); | |
936 | if (var) | |
07c7498d | 937 | is_def = true; |
d764a8e6 IS |
938 | else |
939 | { | |
940 | var = start_var_decl (type, name); | |
941 | hash_name_enter (extern_names, var); | |
942 | } | |
07c7498d IS |
943 | if (is_def) |
944 | { | |
945 | DECL_EXTERNAL (var) = 0; | |
946 | TREE_STATIC (var) = 1; | |
947 | } | |
d764a8e6 IS |
948 | TREE_PUBLIC (var) = 1; |
949 | return var; | |
950 | } | |
951 | ||
c2beaa02 NP |
952 | /* Create a symbol with __attribute__ ((visibility ("hidden"))) |
953 | attribute (private extern). */ | |
07c7498d IS |
954 | static tree |
955 | create_hidden_decl (tree type, const char *name, bool is_def = false); | |
d764a8e6 | 956 | |
944fb799 | 957 | static tree |
07c7498d | 958 | create_hidden_decl (tree type, const char *name, bool is_def) |
d764a8e6 | 959 | { |
07c7498d | 960 | tree decl = create_global_decl (type, name, is_def); |
d764a8e6 IS |
961 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; |
962 | DECL_VISIBILITY_SPECIFIED (decl) = 1; | |
963 | return decl; | |
964 | } | |
965 | ||
966 | /* Irritatingly, we have a different superclass field name for ABI=2. */ | |
c2beaa02 NP |
967 | /* PS/TODO: The field name does not matter, it is only used internally |
968 | by the compiler. We can rename it to whatever we want. ;-) */ | |
d764a8e6 IS |
969 | |
970 | static tree | |
971 | next_runtime_abi_02_super_superclassfield_id (void) | |
972 | { | |
c2beaa02 NP |
973 | /* TODO: Simplify. Just always return get_identifier ("cls"), or at |
974 | most look it once at startup then always return it. */ | |
d764a8e6 IS |
975 | if (!super_superclassfield_id) |
976 | super_superclassfield_id = get_identifier ("cls"); | |
977 | return super_superclassfield_id; | |
978 | } | |
979 | ||
980 | static tree | |
981 | next_runtime_abi_02_class_decl (tree klass) | |
982 | { | |
983 | tree decl; | |
984 | char buf[BUFSIZE]; | |
944fb799 | 985 | snprintf (buf, BUFSIZE, "OBJC_CLASS_$_%s", |
d764a8e6 IS |
986 | IDENTIFIER_POINTER (CLASS_NAME (klass))); |
987 | /* ObjC2 classes are extern visible. */ | |
988 | decl = create_global_decl (objc_v2_class_template, buf); | |
989 | OBJCMETA (decl, objc_meta, meta_class); | |
990 | return decl; | |
991 | } | |
992 | ||
993 | static tree | |
994 | next_runtime_abi_02_metaclass_decl (tree klass) | |
995 | { | |
996 | tree decl; | |
997 | char buf[BUFSIZE]; | |
944fb799 | 998 | snprintf (buf, BUFSIZE, "OBJC_METACLASS_$_%s", |
d764a8e6 IS |
999 | IDENTIFIER_POINTER (CLASS_NAME (klass))); |
1000 | /* ObjC2 classes are extern visible. */ | |
1001 | decl = create_global_decl (objc_v2_class_template, buf); | |
1002 | OBJCMETA (decl, objc_meta, meta_metaclass); | |
1003 | return decl; | |
1004 | } | |
1005 | ||
1006 | static tree | |
1007 | next_runtime_abi_02_category_decl (tree klass) | |
1008 | { | |
1009 | tree decl; | |
1010 | char buf[BUFSIZE]; | |
1174b08b IS |
1011 | snprintf (buf, BUFSIZE, "_OBJC_Category_%s_%s", |
1012 | IDENTIFIER_POINTER (CLASS_NAME (klass)), | |
1013 | IDENTIFIER_POINTER (CLASS_SUPER_NAME (klass))); | |
d764a8e6 IS |
1014 | decl = start_var_decl (objc_v2_category_template, buf); |
1015 | OBJCMETA (decl, objc_meta, meta_category); | |
1016 | return decl; | |
1017 | } | |
1018 | ||
1019 | static tree | |
1020 | next_runtime_abi_02_protocol_decl (tree p) | |
1021 | { | |
1022 | tree decl; | |
1023 | char buf[BUFSIZE]; | |
1024 | ||
1025 | /* static struct _objc_protocol _OBJC_Protocol_<mumble>; */ | |
1026 | snprintf (buf, BUFSIZE, "_OBJC_Protocol_%s", | |
1027 | IDENTIFIER_POINTER (PROTOCOL_NAME (p))); | |
07c7498d IS |
1028 | if (flag_next_runtime >= USE_FIXUP_BEFORE) |
1029 | { | |
1030 | decl = create_hidden_decl (objc_v2_protocol_template, buf); | |
1031 | DECL_WEAK (decl) = true; | |
1032 | } | |
1033 | else | |
1034 | decl = start_var_decl (objc_v2_protocol_template, buf); | |
d764a8e6 | 1035 | OBJCMETA (decl, objc_meta, meta_protocol); |
ecd5727c | 1036 | DECL_PRESERVE_P (decl) = 1; |
d764a8e6 IS |
1037 | return decl; |
1038 | } | |
1039 | ||
1040 | static tree | |
1041 | next_runtime_abi_02_string_decl (tree type, const char *name, string_section where) | |
1042 | { | |
1043 | tree var = start_var_decl (type, name); | |
1044 | switch (where) | |
1045 | { | |
1046 | case class_names: | |
1047 | OBJCMETA (var, objc_meta, meta_class_name); | |
1048 | break; | |
1049 | case meth_var_names: | |
1050 | OBJCMETA (var, objc_meta, meta_meth_name); | |
1051 | break; | |
1052 | case meth_var_types: | |
1053 | OBJCMETA (var, objc_meta, meta_meth_type); | |
1054 | break; | |
1055 | case prop_names_attr: | |
1056 | OBJCMETA (var, objc_meta, meta_prop_name_attr); | |
1057 | break; | |
944fb799 | 1058 | default: |
d764a8e6 IS |
1059 | OBJCMETA (var, objc_meta, meta_base); |
1060 | break; | |
1061 | } | |
1062 | return var; | |
1063 | } | |
1064 | ||
1065 | /* NOTE --- entry --- */ | |
1066 | ||
a79683d5 | 1067 | struct GTY(()) ident_data_tuple { |
d764a8e6 IS |
1068 | tree ident; |
1069 | tree data; | |
a79683d5 | 1070 | }; |
d764a8e6 | 1071 | |
c2beaa02 NP |
1072 | /* This routine creates a file scope static variable of type 'Class' |
1073 | to hold the address of a class. */ | |
d764a8e6 IS |
1074 | |
1075 | static tree | |
1076 | build_v2_class_reference_decl (tree ident) | |
1077 | { | |
1078 | tree decl; | |
1079 | char buf[BUFSIZE]; | |
1080 | ||
1081 | snprintf (buf, BUFSIZE, "_OBJC_ClassRef_%s", IDENTIFIER_POINTER (ident)); | |
1082 | decl = start_var_decl (objc_class_type, buf); | |
1083 | OBJCMETA (decl, objc_meta, meta_class_ref); | |
1084 | return decl; | |
1085 | } | |
1086 | ||
1087 | /* This routine builds a class refs entry for each class name used. | |
c2beaa02 NP |
1088 | Initially, a (static-ref, IDENT) tuple is added to the list. The |
1089 | ident is replaced with address of the class metadata (of type | |
1090 | 'Class') in the output routine. */ | |
d764a8e6 | 1091 | |
9771b263 | 1092 | static GTY (()) vec<ident_data_tuple, va_gc> *classrefs; |
d764a8e6 IS |
1093 | |
1094 | static tree | |
1095 | objc_v2_get_class_reference (tree ident) | |
1096 | { | |
1097 | tree decl; | |
1098 | ident_data_tuple e; | |
1099 | if (classrefs) | |
1100 | { | |
1101 | int count; | |
1102 | ident_data_tuple *ref; | |
9771b263 | 1103 | FOR_EACH_VEC_ELT (*classrefs, count, ref) |
d764a8e6 IS |
1104 | { |
1105 | if (ref->ident == ident) | |
1106 | { | |
1107 | if (!ref->data) | |
1108 | ref->data = build_v2_class_reference_decl (ident); | |
1109 | return ref->data; | |
1110 | } | |
1111 | } | |
1112 | } | |
1113 | else | |
1114 | /* Somewhat arbitrary initial provision. */ | |
9771b263 | 1115 | vec_alloc (classrefs, 16); |
c2beaa02 | 1116 | |
d764a8e6 IS |
1117 | /* We come here if we don't find the entry - or if the table was yet |
1118 | to be created. */ | |
1119 | decl = build_v2_class_reference_decl (ident); | |
1120 | e.ident = ident; | |
1121 | e.data = decl; | |
9771b263 | 1122 | vec_safe_push (classrefs, e); |
d764a8e6 IS |
1123 | return decl; |
1124 | } | |
1125 | ||
1126 | static tree | |
1127 | next_runtime_abi_02_get_class_reference (tree ident) | |
1128 | { | |
1129 | if (!flag_zero_link) | |
1130 | return objc_v2_get_class_reference (ident); | |
1131 | else | |
1132 | { | |
1133 | /* We fall back to using objc_getClass (). */ | |
9771b263 DN |
1134 | vec<tree, va_gc> *v; |
1135 | vec_alloc (v, 1); | |
d764a8e6 | 1136 | tree t; |
c2beaa02 | 1137 | /* ??? add_class_reference (ident); - is pointless, since the |
d764a8e6 IS |
1138 | system lib does not export the equivalent symbols. Maybe we |
1139 | need to build a class ref anyway. */ | |
1140 | t = my_build_string_pointer (IDENTIFIER_LENGTH (ident) + 1, | |
1141 | IDENTIFIER_POINTER (ident)); | |
9771b263 | 1142 | v->quick_push (t); |
81e5eca8 MP |
1143 | t = build_function_call_vec (input_location, vNULL, objc_get_class_decl, |
1144 | v, 0); | |
9771b263 | 1145 | vec_free (v); |
d764a8e6 IS |
1146 | return t; |
1147 | } | |
1148 | } | |
1149 | ||
6174da1b NF |
1150 | /* Used by build_function_type_for_method. Append the types for |
1151 | receiver & _cmd at the start of a method argument list to ARGTYPES. | |
1152 | CONTEXT is either METHOD_DEF or METHOD_REF, saying whether we are | |
1153 | trying to define a method or call one. SUPERFLAG says this is for a | |
1154 | send to super. METH may be NULL, in the case that there is no | |
1155 | prototype. */ | |
d764a8e6 | 1156 | |
6174da1b | 1157 | static void |
9771b263 DN |
1158 | next_runtime_abi_02_get_arg_type_list_base (vec<tree, va_gc> **argtypes, |
1159 | tree meth, int context, | |
1160 | int superflag) | |
d764a8e6 | 1161 | { |
6174da1b | 1162 | tree receiver_type; |
d764a8e6 | 1163 | |
d764a8e6 | 1164 | if (superflag) |
6174da1b | 1165 | receiver_type = objc_super_type; |
d764a8e6 | 1166 | else if (context == METHOD_DEF && TREE_CODE (meth) == INSTANCE_METHOD_DECL) |
6174da1b | 1167 | receiver_type = objc_instance_type; |
d764a8e6 | 1168 | else |
6174da1b | 1169 | receiver_type = objc_object_type; |
d764a8e6 | 1170 | |
9771b263 | 1171 | vec_safe_push (*argtypes, receiver_type); |
8703bf5d | 1172 | if (flag_next_runtime < USE_FIXUP_BEFORE) |
3ba0afac IS |
1173 | /* Selector type - will eventually change to `int'. */ |
1174 | vec_safe_push (*argtypes, superflag ? objc_v2_super_selector_type | |
1175 | : objc_v2_selector_type); | |
1176 | else | |
1177 | vec_safe_push (*argtypes, objc_selector_type); | |
d764a8e6 IS |
1178 | } |
1179 | ||
1180 | /* TODO: Merge this with the message refs. */ | |
1181 | static tree | |
1182 | build_selector_reference_decl (tree ident) | |
1183 | { | |
1184 | tree decl; | |
1185 | char *t, buf[BUFSIZE]; | |
1186 | ||
1187 | snprintf (buf, BUFSIZE, "_OBJC_SelRef_%s", IDENTIFIER_POINTER (ident)); | |
1188 | t = buf; | |
1189 | while (*t) | |
1190 | { | |
944fb799 | 1191 | if (*t==':') |
d764a8e6 IS |
1192 | *t = '$'; /* Underscore would clash between foo:bar and foo_bar. */ |
1193 | t++; | |
1194 | } | |
1195 | decl = start_var_decl (objc_selector_type, buf); | |
1196 | OBJCMETA (decl, objc_meta, meta_sel_refs); | |
1197 | return decl; | |
1198 | } | |
1199 | ||
1200 | static tree | |
1201 | next_runtime_abi_02_build_selector_reference (location_t loc ATTRIBUTE_UNUSED, | |
1202 | tree ident, | |
1203 | tree proto ATTRIBUTE_UNUSED) | |
1204 | { | |
1205 | tree *chain = &sel_ref_chain; | |
1206 | tree expr; | |
1207 | ||
1208 | while (*chain) | |
1209 | { | |
1210 | if (TREE_VALUE (*chain) == ident) | |
1211 | return TREE_PURPOSE (*chain); | |
1212 | ||
1213 | chain = &TREE_CHAIN (*chain); | |
1214 | } | |
1215 | ||
1216 | expr = build_selector_reference_decl (ident); | |
1217 | *chain = tree_cons (expr, ident, NULL_TREE); | |
1218 | ||
1219 | return expr; | |
1220 | } | |
1221 | ||
1222 | /* Declare a variable of type 'struct message_ref_t'. */ | |
c2beaa02 NP |
1223 | /* This will be finished in build_v2_message_ref_translation_table (). |
1224 | We take an idea from LLVM in making the names a bit more connected | |
d764a8e6 IS |
1225 | and thus the asm more readable. */ |
1226 | ||
1227 | static tree | |
1228 | build_v2_message_reference_decl (tree sel_name, tree message_func_ident) | |
1229 | { | |
1230 | tree decl; | |
1231 | char buf[BUFSIZE], *t; | |
1232 | int offset = 12; | |
1233 | ||
c2beaa02 | 1234 | /* Skip past the objc_msgSend it's the same for all... */ |
d764a8e6 IS |
1235 | if (IDENTIFIER_POINTER (message_func_ident)[offset] == '_') |
1236 | offset++; | |
1237 | ||
1238 | snprintf (buf, BUFSIZE, "_OBJC_MsgRef_%s_%s", | |
1239 | &(IDENTIFIER_POINTER (message_func_ident)[offset]), | |
1240 | IDENTIFIER_POINTER (sel_name)); | |
1241 | t = buf; | |
1242 | while (*t) | |
1243 | { | |
944fb799 | 1244 | if (*t==':') |
d764a8e6 IS |
1245 | *t = '$'; /* Underscore would clash between foo:bar and foo_bar. */ |
1246 | t++; | |
1247 | } | |
1248 | decl = start_var_decl (objc_v2_message_ref_template, buf); | |
1249 | OBJCMETA (decl, objc_meta, meta_mref); | |
1250 | return decl; | |
1251 | } | |
1252 | ||
a79683d5 | 1253 | struct GTY(()) msgref_entry { |
d764a8e6 IS |
1254 | tree func; |
1255 | tree selname; | |
1256 | tree refdecl; | |
a79683d5 | 1257 | }; |
d764a8e6 | 1258 | |
9771b263 | 1259 | static GTY (()) vec<msgref_entry, va_gc> *msgrefs; |
d764a8e6 | 1260 | |
c2beaa02 NP |
1261 | /* Build the list of (objc_msgSend_fixup_xxx, selector name), used |
1262 | later on to initialize the table of 'struct message_ref_t' | |
1263 | elements. */ | |
d764a8e6 IS |
1264 | |
1265 | static tree | |
1266 | build_v2_selector_messenger_reference (tree sel_name, tree message_func_decl) | |
1267 | { | |
1268 | tree decl; | |
1269 | msgref_entry e; | |
1270 | if (msgrefs) | |
1271 | { | |
1272 | int count; | |
1273 | msgref_entry *ref; | |
9771b263 | 1274 | FOR_EACH_VEC_ELT (*msgrefs, count, ref) |
d764a8e6 IS |
1275 | if (ref->func == message_func_decl && ref->selname == sel_name) |
1276 | return ref->refdecl; | |
1277 | } | |
1278 | else | |
1279 | /* Somewhat arbitrary initial provision. */ | |
9771b263 | 1280 | vec_alloc (msgrefs, 32); |
c2beaa02 | 1281 | |
d764a8e6 | 1282 | /* We come here if we don't find a match or at the start. */ |
944fb799 | 1283 | decl = build_v2_message_reference_decl (sel_name, |
d764a8e6 IS |
1284 | DECL_NAME (message_func_decl)); |
1285 | e.func = message_func_decl; | |
1286 | e.selname = sel_name; | |
1287 | e.refdecl = decl; | |
9771b263 | 1288 | vec_safe_push (msgrefs, e); |
d764a8e6 IS |
1289 | return decl; |
1290 | } | |
1291 | ||
1292 | static tree | |
1293 | build_v2_protocollist_ref_decl (tree protocol) | |
1294 | { | |
1295 | tree decl; | |
1296 | tree protocol_ident = PROTOCOL_NAME (protocol); | |
1297 | char buf[BUFSIZE]; | |
1298 | ||
944fb799 | 1299 | snprintf (buf, BUFSIZE, "_OBJC_ProtocolRef_%s", |
d764a8e6 IS |
1300 | IDENTIFIER_POINTER (protocol_ident)); |
1301 | /* TODO: other compiler versions make these hidden & weak. */ | |
1302 | decl = create_global_decl (objc_protocol_type, buf); | |
1303 | /* Let optimizer know that this decl is not removable. */ | |
1304 | DECL_PRESERVE_P (decl) = 1; | |
1305 | OBJCMETA (decl, objc_meta, meta_proto_ref); | |
1306 | return decl; | |
1307 | } | |
1308 | ||
a79683d5 | 1309 | struct GTY(()) prot_list_entry { |
d764a8e6 IS |
1310 | tree id; |
1311 | tree refdecl; | |
a79683d5 | 1312 | }; |
9771b263 | 1313 | static GTY (()) vec<prot_list_entry, va_gc> *protrefs; |
d764a8e6 IS |
1314 | |
1315 | static tree | |
1316 | objc_v2_get_protocol_reference (tree ident) | |
1317 | { | |
1318 | tree decl; | |
1319 | prot_list_entry e; | |
1320 | if (protrefs) | |
1321 | { | |
1322 | int count; | |
1323 | prot_list_entry *ref; | |
9771b263 | 1324 | FOR_EACH_VEC_ELT (*protrefs, count, ref) |
d764a8e6 IS |
1325 | { |
1326 | if (ref->id == ident) | |
1327 | { | |
1328 | if (!ref->refdecl) | |
1329 | ref->refdecl = build_v2_protocollist_ref_decl (ident); | |
1330 | return ref->refdecl; | |
1331 | } | |
1332 | } | |
1333 | } | |
1334 | else | |
1335 | /* Somewhat arbitrary initial provision. */ | |
9771b263 | 1336 | vec_alloc (protrefs, 32); |
c2beaa02 | 1337 | |
d764a8e6 IS |
1338 | /* We come here if we don't find the entry - or if the table was yet |
1339 | to be created. */ | |
1340 | decl = build_v2_protocollist_ref_decl (ident); | |
1341 | e.id = ident; | |
1342 | e.refdecl = decl; | |
9771b263 | 1343 | vec_safe_push (protrefs, e); |
d764a8e6 IS |
1344 | return decl; |
1345 | } | |
1346 | ||
1347 | static tree | |
1348 | next_runtime_abi_02_get_protocol_reference (location_t loc ATTRIBUTE_UNUSED, | |
1349 | tree p) | |
1350 | { | |
1351 | if (!PROTOCOL_FORWARD_DECL (p)) | |
1352 | PROTOCOL_FORWARD_DECL (p) = next_runtime_abi_02_protocol_decl (p); | |
1353 | ||
1354 | return objc_v2_get_protocol_reference (p); | |
1355 | } | |
1356 | ||
c2beaa02 NP |
1357 | /* This routine returns the ivar declaration, if component is a valid |
1358 | ivar field; NULL_TREE otherwise. On finding an ivar, it also | |
1359 | returns the class name in CLASS. */ | |
d764a8e6 IS |
1360 | |
1361 | static tree | |
1362 | objc_is_ivar (tree expr, tree component, tree *klass) | |
1363 | { | |
1364 | tree field = NULL_TREE; | |
1365 | tree basetype = TYPE_MAIN_VARIANT (TREE_TYPE (expr)); | |
1366 | ||
944fb799 | 1367 | if (TREE_CODE (basetype) == RECORD_TYPE |
d764a8e6 IS |
1368 | && TYPE_HAS_OBJC_INFO (basetype) && TYPE_OBJC_INTERFACE (basetype)) |
1369 | { | |
1370 | *klass = lookup_interface (OBJC_TYPE_NAME (basetype)); | |
1371 | if (*klass) | |
1372 | { | |
1373 | do | |
1374 | { | |
1375 | tree ivar_chain = CLASS_RAW_IVARS (*klass); | |
1376 | if (ivar_chain) | |
1377 | { | |
1378 | field = is_ivar (ivar_chain, component); | |
1379 | if (field != NULL_TREE) | |
1380 | break; | |
1381 | } | |
1382 | *klass = lookup_interface (CLASS_SUPER_NAME (*klass)); | |
1383 | } | |
1384 | while (*klass); | |
1385 | } | |
1386 | } | |
1387 | return field; | |
944fb799 | 1388 | } |
d764a8e6 IS |
1389 | |
1390 | static void | |
1391 | create_ivar_offset_name (char *buf, tree class_name, tree field_decl) | |
1392 | { | |
1393 | tree fname = DECL_NAME (field_decl); | |
1394 | ||
1395 | sprintf (buf, "OBJC_IVAR_$_%s.%s", IDENTIFIER_POINTER (class_name), | |
1396 | IDENTIFIER_POINTER (fname)); | |
1397 | return; | |
1398 | } | |
1399 | ||
c2beaa02 NP |
1400 | /* This routine generates new abi's ivar reference tree. It amounts |
1401 | to generating *(TYPE*)((char*)pObj + OFFSET_IVAR) when we normally | |
1402 | generate pObj->IVAR. OFFSET_IVAR is an 'extern' variable holding | |
1403 | the offset for 'IVAR' field. TYPE is type of IVAR field. */ | |
d764a8e6 IS |
1404 | |
1405 | static tree | |
1406 | objc_v2_build_ivar_ref (tree datum, tree component) | |
1407 | { | |
1408 | tree field, ref, class_name, offset, ftype, expr; | |
1409 | char var_offset_name[512]; | |
1410 | ||
1411 | field = objc_is_ivar (datum, component, &class_name); | |
1412 | if (!field) | |
1413 | return NULL_TREE; | |
1414 | ||
1415 | /* This routine only handles non-bitfield fields */ | |
73699d92 | 1416 | if (DECL_C_BIT_FIELD (field)) |
d764a8e6 IS |
1417 | return NULL_TREE; |
1418 | ||
1419 | create_ivar_offset_name (var_offset_name, CLASS_NAME (class_name), field); | |
1420 | ||
1421 | offset = create_extern_decl (TREE_TYPE (size_zero_node), var_offset_name); | |
1422 | ||
1423 | ftype = TREE_TYPE (field); | |
1424 | ||
1425 | /* (char*)datum */ | |
944fb799 | 1426 | expr = build_c_cast (input_location, |
d764a8e6 IS |
1427 | string_type_node, build_fold_addr_expr (datum)); |
1428 | ||
1429 | /* (char*)datum + offset */ | |
5d49b6a7 | 1430 | expr = fold_build_pointer_plus_loc (input_location, expr, offset); |
944fb799 | 1431 | |
d764a8e6 IS |
1432 | /* (ftype*)((char*)datum + offset) */ |
1433 | expr = build_c_cast (input_location, build_pointer_type (ftype), expr); | |
1434 | ||
1435 | /* Finally: *(ftype*)((char*)datum + offset) */ | |
1436 | ref = build_indirect_ref (input_location, expr, RO_UNARY_STAR); | |
1437 | ||
c2beaa02 NP |
1438 | /* We must set type of the resulting expression to be the same as |
1439 | the field type. This is because, build_indirect_ref (...) | |
1440 | rebuilds the type which may result in lost information; as in the | |
1441 | case of protocol-qualified types (id <protocol> ). */ | |
d764a8e6 IS |
1442 | TREE_TYPE (ref) = ftype; |
1443 | ||
1444 | if (TREE_READONLY (datum) || TREE_READONLY (field)) | |
1445 | TREE_READONLY (ref) = 1; | |
1446 | ||
1447 | if (TREE_THIS_VOLATILE (datum) || TREE_THIS_VOLATILE (field)) | |
1448 | TREE_THIS_VOLATILE (ref) = 1; | |
1449 | ||
1450 | if (TREE_DEPRECATED (field)) | |
1451 | warn_deprecated_use (field, NULL_TREE); | |
1452 | ||
1453 | return ref; | |
1454 | } | |
1455 | ||
1456 | /* IVAR refs are made via an externally referenceable offset and built | |
1457 | on the fly. That is, unless they refer to (private) fields in the | |
587ae1e3 | 1458 | class structure. */ |
d764a8e6 | 1459 | static tree |
944fb799 | 1460 | next_runtime_abi_02_build_ivar_ref (location_t loc ATTRIBUTE_UNUSED, |
d764a8e6 IS |
1461 | tree base, tree id) |
1462 | { | |
1463 | tree ivar; | |
1464 | if ((ivar = objc_v2_build_ivar_ref (base, id))) | |
1465 | return ivar; | |
1466 | return objc_build_component_ref (base, id); | |
1467 | } | |
1468 | ||
c2beaa02 NP |
1469 | /* [super ...] references are listed here (and built into a table at |
1470 | meta -data emit time). */ | |
d764a8e6 IS |
1471 | static tree |
1472 | build_v2_superclass_ref_decl (tree ident, bool inst) | |
1473 | { | |
1474 | tree decl; | |
1475 | char buf[BUFSIZE]; | |
1476 | ||
1477 | snprintf (buf, BUFSIZE, "_OBJC_%sSuperRef_%s", (inst?"":"Meta"), | |
1478 | IDENTIFIER_POINTER (ident)); | |
1479 | decl = start_var_decl (objc_class_type, buf); | |
1480 | OBJCMETA (decl, objc_meta, meta_superclass_ref); | |
1481 | return decl; | |
1482 | } | |
1483 | ||
9771b263 DN |
1484 | static GTY (()) vec<ident_data_tuple, va_gc> *class_super_refs; |
1485 | static GTY (()) vec<ident_data_tuple, va_gc> *metaclass_super_refs; | |
d764a8e6 | 1486 | |
c28d91bf IS |
1487 | /* Find or build a superclass reference decl for class NAME. */ |
1488 | ||
d764a8e6 | 1489 | static tree |
c28d91bf | 1490 | objc_get_superclass_ref_decl (tree name, bool inst_meth) |
d764a8e6 IS |
1491 | { |
1492 | tree decl; | |
9771b263 | 1493 | vec<ident_data_tuple, va_gc> *list = inst_meth ? class_super_refs |
d764a8e6 IS |
1494 | : metaclass_super_refs; |
1495 | ||
1496 | if (list) | |
1497 | { | |
1498 | int count; | |
1499 | ident_data_tuple *ref; | |
9771b263 | 1500 | FOR_EACH_VEC_ELT (*list, count, ref) |
d764a8e6 | 1501 | { |
c28d91bf | 1502 | if (ref->ident == name) |
d764a8e6 IS |
1503 | { |
1504 | if (!ref->data) | |
c28d91bf | 1505 | ref->data = build_v2_superclass_ref_decl (name, inst_meth); |
d764a8e6 IS |
1506 | return ref->data; |
1507 | } | |
1508 | } | |
1509 | } | |
1510 | else | |
1511 | { | |
1512 | /* Somewhat arbitrary initial provision. */ | |
1513 | if (inst_meth) | |
9771b263 DN |
1514 | { |
1515 | vec_alloc (class_super_refs, 16); | |
1516 | list = class_super_refs; | |
1517 | } | |
d764a8e6 | 1518 | else |
9771b263 DN |
1519 | { |
1520 | vec_alloc (metaclass_super_refs, 16); | |
1521 | list = metaclass_super_refs; | |
1522 | } | |
d764a8e6 IS |
1523 | } |
1524 | /* We come here if we don't find the entry - or if the table was yet | |
1525 | to be created. */ | |
c28d91bf IS |
1526 | decl = build_v2_superclass_ref_decl (name, inst_meth); |
1527 | ident_data_tuple e; | |
1528 | e.ident = name; | |
d764a8e6 | 1529 | e.data = decl; |
9771b263 | 1530 | vec_safe_push (list, e); |
d764a8e6 IS |
1531 | return decl; |
1532 | } | |
1533 | ||
c28d91bf IS |
1534 | /* Get a reference to the superclass for IMP. */ |
1535 | ||
d764a8e6 | 1536 | static tree |
c28d91bf IS |
1537 | next_runtime_abi_02_get_class_super_ref (location_t loc ATTRIBUTE_UNUSED, |
1538 | struct imp_entry *imp, bool inst_meth) | |
d764a8e6 | 1539 | { |
c28d91bf IS |
1540 | tree name = CLASS_NAME (imp->imp_context); |
1541 | return objc_get_superclass_ref_decl (name, inst_meth); | |
1542 | } | |
d764a8e6 | 1543 | |
c28d91bf IS |
1544 | /* Get a reference to the superclass for category IMP. */ |
1545 | ||
1546 | static tree | |
1547 | next_runtime_abi_02_get_category_super_ref (location_t loc ATTRIBUTE_UNUSED, | |
1548 | struct imp_entry *imp, | |
1549 | bool inst_meth) | |
1550 | { | |
1551 | if (flag_zero_link) | |
d764a8e6 | 1552 | { |
c28d91bf IS |
1553 | /* Do it the slow way. */ |
1554 | tree get_cl_fn = inst_meth ? objc_get_class_decl | |
1555 | : objc_get_meta_class_decl; | |
1556 | tree super_name = CLASS_SUPER_NAME (imp->imp_template); | |
1557 | super_name = my_build_string_pointer (IDENTIFIER_LENGTH (super_name) + 1, | |
1558 | IDENTIFIER_POINTER (super_name)); | |
1559 | /* super_class = objc_get{Meta}Class("CLASS_SUPER_NAME"); */ | |
1560 | return build_function_call (input_location, get_cl_fn, | |
1561 | build_tree_list (NULL_TREE, super_name)); | |
d764a8e6 | 1562 | } |
c28d91bf IS |
1563 | |
1564 | /* This is the 'usual' path. */ | |
1565 | tree cls_name = CLASS_NAME (imp->imp_template); | |
1566 | if (!inst_meth) | |
1567 | return objc_get_superclass_ref_decl (cls_name, inst_meth); | |
1568 | return objc_get_class_reference (cls_name); | |
d764a8e6 IS |
1569 | } |
1570 | ||
1571 | static tree | |
1572 | next_runtime_abi_02_receiver_is_class_object (tree receiver) | |
1573 | { | |
1574 | if (TREE_CODE (receiver) == VAR_DECL | |
1575 | && IS_CLASS (TREE_TYPE (receiver)) | |
9771b263 | 1576 | && vec_safe_length (classrefs)) |
d764a8e6 IS |
1577 | { |
1578 | int count; | |
1579 | ident_data_tuple *ref; | |
1580 | /* The receiver is a variable created by build_class_reference_decl. */ | |
9771b263 | 1581 | FOR_EACH_VEC_ELT (*classrefs, count, ref) |
d764a8e6 IS |
1582 | if (ref->data == receiver) |
1583 | return ref->ident; | |
1584 | } | |
1585 | return NULL_TREE; | |
1586 | } | |
1587 | ||
6174da1b NF |
1588 | /* Assign all arguments in VALUES which have side-effect to a temporary |
1589 | and replaced that argument in VALUES list with the temporary. The | |
1590 | arguments will be passed to a function with FNTYPE. */ | |
d764a8e6 IS |
1591 | |
1592 | static tree | |
6174da1b | 1593 | objc_copy_to_temp_side_effect_params (tree fntype, tree values) |
d764a8e6 | 1594 | { |
6174da1b NF |
1595 | tree valtail; |
1596 | function_args_iterator iter; | |
1597 | ||
c2beaa02 | 1598 | /* Skip over receiver and the &_msf_ref types. */ |
6174da1b NF |
1599 | function_args_iter_init (&iter, fntype); |
1600 | function_args_iter_next (&iter); | |
1601 | function_args_iter_next (&iter); | |
d764a8e6 | 1602 | |
944fb799 | 1603 | for (valtail = values; valtail; |
6174da1b | 1604 | valtail = TREE_CHAIN (valtail), function_args_iter_next (&iter)) |
d764a8e6 IS |
1605 | { |
1606 | tree value = TREE_VALUE (valtail); | |
6174da1b | 1607 | tree type = function_args_iter_cond (&iter); |
d764a8e6 | 1608 | if (type == NULL_TREE) |
944fb799 | 1609 | break; |
d764a8e6 IS |
1610 | if (!TREE_SIDE_EFFECTS (value)) |
1611 | continue; | |
c2beaa02 | 1612 | /* To prevent re-evaluation. */ |
d764a8e6 IS |
1613 | value = save_expr (value); |
1614 | add_stmt (value); | |
1615 | TREE_VALUE (valtail) = value; | |
1616 | } | |
1617 | return values; | |
1618 | } | |
1619 | ||
1620 | /* Build the new abi's messaging library call. It looks like: | |
c2beaa02 | 1621 | (*_msg.messenger) (receiver, &_msg, ...) */ |
d764a8e6 IS |
1622 | |
1623 | static tree | |
3ba0afac IS |
1624 | build_v2_objc_method_fixup_call (int super_flag, tree method_prototype, |
1625 | tree lookup_object, tree selector, | |
1626 | tree method_params, bool check_for_nil) | |
d764a8e6 IS |
1627 | { |
1628 | tree ret_val; | |
1629 | tree sender, rcv_p, t; | |
1630 | tree ret_type | |
1631 | = (method_prototype | |
1632 | ? TREE_VALUE (TREE_TYPE (method_prototype)) | |
1633 | : objc_object_type); | |
6174da1b | 1634 | tree ftype = build_function_type_for_method (ret_type, method_prototype, |
d764a8e6 | 1635 | METHOD_REF, super_flag); |
d764a8e6 IS |
1636 | tree sender_cast; |
1637 | ||
1638 | if (method_prototype && METHOD_TYPE_ATTRIBUTES (method_prototype)) | |
1639 | ftype = build_type_attribute_variant ( | |
1640 | ftype, METHOD_TYPE_ATTRIBUTES (method_prototype)); | |
1641 | ||
1642 | sender_cast = build_pointer_type (ftype); | |
1643 | ||
1644 | if (check_for_nil) | |
6174da1b | 1645 | method_params = objc_copy_to_temp_side_effect_params (ftype, |
d764a8e6 IS |
1646 | method_params); |
1647 | ||
c2beaa02 | 1648 | /* Get &message_ref_t.messenger. */ |
944fb799 | 1649 | sender = build_c_cast (input_location, |
d764a8e6 IS |
1650 | build_pointer_type (super_flag |
1651 | ? objc_v2_super_imp_type | |
1652 | : objc_v2_imp_type), | |
1653 | selector); | |
1654 | ||
1655 | sender = build_indirect_ref (input_location, sender, RO_UNARY_STAR); | |
1656 | ||
1657 | rcv_p = (super_flag ? objc_super_type : objc_object_type); | |
1658 | ||
1659 | lookup_object = build_c_cast (input_location, rcv_p, lookup_object); | |
1660 | ||
1661 | /* Use SAVE_EXPR to avoid evaluating the receiver twice. */ | |
1662 | lookup_object = save_expr (lookup_object); | |
1663 | ||
1664 | method_params = tree_cons (NULL_TREE, lookup_object, | |
1665 | tree_cons (NULL_TREE, selector, | |
1666 | method_params)); | |
ef946258 JJ |
1667 | t = build3 (OBJ_TYPE_REF, sender_cast, sender, lookup_object, |
1668 | build_int_cst (TREE_TYPE (lookup_object), 0)); | |
d764a8e6 IS |
1669 | ret_val = build_function_call (input_location, t, method_params); |
1670 | if (check_for_nil) | |
1671 | { | |
1672 | /* receiver != nil ? ret_val : 0 */ | |
1673 | tree ftree; | |
1674 | tree ifexp; | |
1675 | ||
1676 | if (TREE_CODE (ret_type) == RECORD_TYPE | |
1677 | || TREE_CODE (ret_type) == UNION_TYPE) | |
d2aa4e0b IS |
1678 | /* An empty constructor is zero-filled by the middle end. */ |
1679 | ftree = objc_build_constructor (ret_type, NULL); | |
d764a8e6 IS |
1680 | else |
1681 | ftree = fold_convert (ret_type, integer_zero_node); | |
1682 | ||
944fb799 MS |
1683 | ifexp = build_binary_op (input_location, NE_EXPR, |
1684 | lookup_object, | |
d764a8e6 IS |
1685 | fold_convert (rcv_p, integer_zero_node), 1); |
1686 | ||
1687 | #ifdef OBJCPLUS | |
5951f9df PC |
1688 | ret_val = build_conditional_expr (input_location, |
1689 | ifexp, ret_val, ftree, | |
1690 | tf_warning_or_error); | |
d764a8e6 | 1691 | #else |
944fb799 | 1692 | ret_val = build_conditional_expr (input_location, |
d2aa4e0b | 1693 | ifexp, 0, |
a32c8316 MP |
1694 | ret_val, NULL_TREE, input_location, |
1695 | ftree, NULL_TREE, input_location); | |
d2aa4e0b | 1696 | ret_val = fold_convert (ret_type, ret_val); |
944fb799 | 1697 | #endif |
d764a8e6 IS |
1698 | } |
1699 | return ret_val; | |
1700 | } | |
1701 | ||
3ba0afac IS |
1702 | static tree |
1703 | build_v2_build_objc_method_call (int super, tree method_prototype, | |
1704 | tree lookup_object, tree selector, | |
1705 | tree method_params, location_t loc, | |
1706 | bool check_for_nil, bool rx_is_id) | |
1707 | { | |
1708 | tree sender, sender_cast, method, t; | |
1709 | tree rcv_p = (super ? objc_super_type : objc_object_type); | |
1710 | vec<tree, va_gc> *parms; | |
1711 | unsigned nparm = (method_params ? list_length (method_params) : 0); | |
1712 | ||
1713 | /* If a prototype for the method to be called exists, then cast | |
1714 | the sender's return type and arguments to match that of the method. | |
1715 | Otherwise, leave sender as is. */ | |
1716 | tree ret_type | |
1717 | = (method_prototype | |
1718 | ? TREE_VALUE (TREE_TYPE (method_prototype)) | |
1719 | : objc_object_type); | |
1720 | tree ftype = build_function_type_for_method (ret_type, method_prototype, | |
1721 | METHOD_REF, super); | |
1722 | ||
1723 | if (method_prototype && METHOD_TYPE_ATTRIBUTES (method_prototype)) | |
1724 | ftype = build_type_attribute_variant (ftype, | |
1725 | METHOD_TYPE_ATTRIBUTES | |
1726 | (method_prototype)); | |
1727 | ||
1728 | sender_cast = build_pointer_type (ftype); | |
1729 | ||
1730 | lookup_object = build_c_cast (loc, rcv_p, lookup_object); | |
1731 | ||
1732 | /* Use SAVE_EXPR to avoid evaluating the receiver twice. */ | |
1733 | lookup_object = save_expr (lookup_object); | |
1734 | ||
1735 | /* Param list + 2 slots for object and selector. */ | |
1736 | vec_alloc (parms, nparm + 2); | |
1737 | ||
1cef3039 IS |
1738 | /* If we are returning an item that must be returned in memory, and the |
1739 | target ABI does this by an invisible pointer provided as the first arg, | |
1740 | we need to adjust the message signature to include this. The second | |
1741 | part of this excludes targets that provide some alternate scheme for | |
1742 | structure returns. */ | |
1743 | if (ret_type && !VOID_TYPE_P (ret_type) | |
1744 | && targetm.calls.return_in_memory (ret_type, 0) | |
1745 | && !(targetm.calls.struct_value_rtx (0, 0) | |
1746 | && (TREE_CODE (ret_type) == RECORD_TYPE | |
1747 | || TREE_CODE (ret_type) == UNION_TYPE))) | |
3ba0afac IS |
1748 | { |
1749 | if (super) | |
1750 | sender = umsg_id_super2_stret_fixup_decl; | |
1751 | else | |
1752 | sender = rx_is_id ? umsg_id_stret_fixup_decl | |
1753 | : umsg_stret_fixup_decl; | |
1754 | } | |
1755 | else | |
1756 | { | |
1757 | if (super) | |
1758 | sender = umsg_id_super2_fixup_decl; | |
1759 | else | |
1760 | sender = rx_is_id ? umsg_id_fixup_decl | |
1761 | : umsg_fixup_decl; | |
1762 | } | |
1763 | ||
1764 | method = build_fold_addr_expr_loc (loc, sender); | |
1765 | ||
1766 | /* Pass the object to the method. */ | |
1767 | parms->quick_push (lookup_object); | |
1768 | /* Pass the selector to the method. */ | |
1769 | parms->quick_push (selector); | |
1770 | /* Now append the remainder of the parms. */ | |
1771 | if (nparm) | |
1772 | for (; method_params; method_params = TREE_CHAIN (method_params)) | |
1773 | parms->quick_push (TREE_VALUE (method_params)); | |
1774 | ||
1775 | /* Build an obj_type_ref, with the correct cast for the method call. */ | |
1776 | t = build3 (OBJ_TYPE_REF, sender_cast, method, | |
ef946258 | 1777 | lookup_object, build_int_cst (TREE_TYPE (lookup_object), 0)); |
3ba0afac IS |
1778 | tree ret_val = build_function_call_vec (loc, vNULL, t, parms, NULL); |
1779 | vec_free (parms); | |
1780 | if (check_for_nil) | |
1781 | { | |
1782 | /* receiver != nil ? ret_val : 0 */ | |
1783 | tree ftree; | |
1784 | tree ifexp; | |
1785 | ||
1786 | if (TREE_CODE (ret_type) == RECORD_TYPE | |
1787 | || TREE_CODE (ret_type) == UNION_TYPE) | |
1788 | { | |
d2aa4e0b IS |
1789 | /* An empty constructor is zero-filled by the middle end. */ |
1790 | ftree = objc_build_constructor (ret_type, NULL); | |
3ba0afac IS |
1791 | } |
1792 | else | |
1793 | ftree = fold_convert (ret_type, integer_zero_node); | |
1794 | ||
1795 | ifexp = build_binary_op (loc, NE_EXPR, | |
1796 | lookup_object, | |
1797 | fold_convert (rcv_p, integer_zero_node), 1); | |
1798 | ||
1799 | #ifdef OBJCPLUS | |
1800 | ret_val = build_conditional_expr (loc, ifexp, ret_val, ftree, | |
1801 | tf_warning_or_error); | |
1802 | #else | |
3ba0afac IS |
1803 | ret_val = build_conditional_expr (loc, ifexp, 1, |
1804 | ret_val, NULL_TREE, loc, | |
1805 | ftree, NULL_TREE, loc); | |
d2aa4e0b | 1806 | ret_val = fold_convert (ret_type, ret_val); |
3ba0afac IS |
1807 | #endif |
1808 | } | |
1809 | return ret_val; | |
1810 | } | |
1811 | ||
d764a8e6 IS |
1812 | static tree |
1813 | next_runtime_abi_02_build_objc_method_call (location_t loc, | |
1814 | tree method_prototype, | |
1815 | tree receiver, | |
1816 | tree rtype, | |
1817 | tree sel_name, | |
1818 | tree method_params, | |
1819 | int super) | |
1820 | { | |
d764a8e6 | 1821 | /* Do we need to check for nil receivers ? */ |
c2beaa02 NP |
1822 | /* For now, message sent to classes need no nil check. In the |
1823 | future, class declaration marked as weak_import must be nil | |
1824 | checked. */ | |
3ba0afac | 1825 | bool check_for_nil = flag_objc_nilcheck; |
944fb799 MS |
1826 | if (super |
1827 | || (TREE_CODE (receiver) == VAR_DECL | |
d764a8e6 IS |
1828 | && TREE_TYPE (receiver) == objc_class_type)) |
1829 | check_for_nil = false; | |
1830 | ||
8703bf5d | 1831 | if (flag_next_runtime >= USE_FIXUP_BEFORE) |
3ba0afac IS |
1832 | { |
1833 | tree selector | |
1834 | = next_runtime_abi_02_build_selector_reference (loc, sel_name, | |
1835 | method_prototype); | |
1836 | return build_v2_build_objc_method_call (super, method_prototype, | |
1837 | receiver, selector, | |
1838 | method_params, loc, | |
1839 | check_for_nil, | |
1840 | objc_is_id (rtype)); | |
1841 | } | |
1842 | ||
1843 | /* else we have to build a pair of the function and selector. */ | |
1844 | tree message_func_decl; | |
1845 | tree ret_type = method_prototype | |
1846 | ? TREE_VALUE (TREE_TYPE (method_prototype)) | |
1847 | : objc_object_type; | |
1848 | ||
1cef3039 IS |
1849 | /* See comment for the fixup version above. */ |
1850 | if (ret_type && !VOID_TYPE_P (ret_type) | |
1851 | && targetm.calls.return_in_memory (ret_type, 0) | |
1852 | && !(targetm.calls.struct_value_rtx (0, 0) | |
1853 | && (TREE_CODE (ret_type) == RECORD_TYPE | |
1854 | || TREE_CODE (ret_type) == UNION_TYPE))) | |
d764a8e6 IS |
1855 | { |
1856 | if (super) | |
1857 | message_func_decl = umsg_id_super2_stret_fixup_decl; | |
1858 | else | |
944fb799 MS |
1859 | message_func_decl = objc_is_id (rtype) |
1860 | ? umsg_id_stret_fixup_decl | |
1861 | : umsg_stret_fixup_decl; | |
d764a8e6 IS |
1862 | } |
1863 | else | |
1864 | { | |
1865 | if (super) | |
1866 | message_func_decl = umsg_id_super2_fixup_decl; | |
1867 | else | |
944fb799 MS |
1868 | message_func_decl = objc_is_id (rtype) |
1869 | ? umsg_id_fixup_decl | |
1870 | : umsg_fixup_decl; | |
d764a8e6 IS |
1871 | } |
1872 | ||
3ba0afac | 1873 | tree selector = build_v2_selector_messenger_reference (sel_name, |
d764a8e6 IS |
1874 | message_func_decl); |
1875 | ||
1876 | /* selector = &_msg; */ | |
1877 | selector = build_unary_op (loc, ADDR_EXPR, selector, 0); | |
944fb799 MS |
1878 | |
1879 | selector = build_c_cast (loc, (super ? objc_v2_super_selector_type | |
d764a8e6 IS |
1880 | : objc_v2_selector_type), |
1881 | selector); | |
1882 | ||
1883 | /* (*_msg.messenger) (receiver, &_msg, ...); */ | |
3ba0afac IS |
1884 | return build_v2_objc_method_fixup_call (super, method_prototype, receiver, |
1885 | selector, method_params, | |
1886 | check_for_nil); | |
d764a8e6 IS |
1887 | } |
1888 | ||
1889 | /* NOTE --- Constant String Class Stuff --- */ | |
1890 | ||
1891 | static bool | |
1892 | next_runtime_abi_02_setup_const_string_class_decl (void) | |
1893 | { | |
1894 | if (!constant_string_global_id) | |
1895 | { | |
1896 | /* Hopefully, this should not represent a serious limitation. */ | |
1897 | char buf[BUFSIZE]; | |
1898 | snprintf (buf, BUFSIZE, "OBJC_CLASS_$_%s", constant_string_class_name); | |
1899 | constant_string_global_id = get_identifier (buf); | |
1900 | } | |
1901 | ||
1902 | string_class_decl = lookup_name (constant_string_global_id); | |
1903 | ||
c2beaa02 NP |
1904 | /* In OBJC2 abi, constant string class reference refers to class |
1905 | name for NSConstantString class. This declaration may not be | |
1906 | available yet (in fact it is not in most cases). So, declare an | |
1907 | extern OBJC_CLASS_$_NSConstantString in its place. */ | |
d764a8e6 | 1908 | if (!string_class_decl) |
944fb799 | 1909 | string_class_decl = |
d764a8e6 IS |
1910 | create_extern_decl (objc_v2_class_template, |
1911 | IDENTIFIER_POINTER (constant_string_global_id)); | |
1912 | ||
1913 | return (string_class_decl != NULL_TREE); | |
1914 | } | |
1915 | ||
1916 | static tree | |
1917 | next_runtime_abi_02_build_const_string_constructor (location_t loc, tree string, | |
1918 | int length) | |
1919 | { | |
1920 | tree constructor, fields, var; | |
9771b263 | 1921 | vec<constructor_elt, va_gc> *v = NULL; |
d764a8e6 | 1922 | |
c2beaa02 | 1923 | /* NeXT: (NSConstantString *) & ((__builtin_ObjCString) { isa, string, length }) */ |
d764a8e6 IS |
1924 | fields = TYPE_FIELDS (internal_const_str_type); |
1925 | CONSTRUCTOR_APPEND_ELT (v, fields, | |
1926 | build_unary_op (loc, ADDR_EXPR, string_class_decl, 0)); | |
1927 | ||
1928 | fields = DECL_CHAIN (fields); | |
1929 | CONSTRUCTOR_APPEND_ELT (v, fields, | |
1930 | build_unary_op (loc, ADDR_EXPR, string, 1)); | |
1931 | ||
1932 | /* ??? check if this should be long. */ | |
1933 | fields = DECL_CHAIN (fields); | |
1934 | CONSTRUCTOR_APPEND_ELT (v, fields, build_int_cst (NULL_TREE, length)); | |
1935 | constructor = objc_build_constructor (internal_const_str_type, v); | |
1936 | ||
1937 | var = build_decl (input_location, CONST_DECL, NULL, TREE_TYPE (constructor)); | |
1938 | DECL_INITIAL (var) = constructor; | |
1939 | TREE_STATIC (var) = 1; | |
1940 | DECL_CONTEXT (var) = NULL; | |
1941 | OBJCMETA (var, objc_meta, meta_const_str); | |
1942 | return var; | |
1943 | } | |
1944 | ||
1945 | /* NOTE --- NeXT V2 Metadata templates --- */ | |
1946 | ||
1947 | /* This routine builds the following type: | |
c2beaa02 NP |
1948 | struct _prop_t |
1949 | { | |
d764a8e6 | 1950 | const char * const name; // property name |
944fb799 | 1951 | const char * const attributes; // comma-delimited, encoded, |
d764a8e6 IS |
1952 | // property attributes |
1953 | }; | |
1954 | */ | |
1955 | ||
1956 | static tree | |
1957 | build_v2_property_template (void) | |
1958 | { | |
1959 | tree prop_record; | |
1960 | tree decls, *chain = NULL; | |
1961 | ||
1962 | prop_record = objc_start_struct (get_identifier ("_prop_t")); | |
1963 | /* const char * name */ | |
1964 | decls = add_field_decl (string_type_node, "name", &chain); | |
1965 | ||
1966 | /* const char * attribute */ | |
1967 | add_field_decl (string_type_node, "attribute", &chain); | |
1968 | ||
1969 | objc_finish_struct (prop_record, decls); | |
1970 | return prop_record; | |
1971 | } | |
1972 | ||
c2beaa02 NP |
1973 | /* struct ivar_t |
1974 | { | |
d764a8e6 IS |
1975 | unsigned long int *offset; |
1976 | char *name; | |
1977 | char *type; | |
1978 | uint32_t alignment; | |
1979 | uint32_t size; | |
1980 | }; | |
1981 | */ | |
1982 | ||
1983 | static tree | |
1984 | build_v2_ivar_t_template (void) | |
1985 | { | |
1986 | tree objc_ivar_id, objc_ivar_record; | |
1987 | tree decls, *chain = NULL; | |
1988 | ||
1989 | objc_ivar_id = get_identifier ("_ivar_t"); | |
1990 | objc_ivar_record = objc_start_struct (objc_ivar_id); | |
1991 | ||
c2beaa02 | 1992 | /* unsigned long int *offset; */ |
944fb799 | 1993 | decls = add_field_decl (build_pointer_type |
d764a8e6 IS |
1994 | (TREE_TYPE (size_zero_node)), "offset", &chain); |
1995 | ||
1996 | /* char *name; */ | |
1997 | add_field_decl (string_type_node, "name", &chain); | |
1998 | ||
1999 | /* char *type; */ | |
2000 | add_field_decl (string_type_node, "type", &chain); | |
2001 | ||
2002 | /* uint32_t alignment; */ | |
2003 | add_field_decl (integer_type_node, "alignment", &chain); | |
2004 | ||
2005 | /* uint32_t size; */ | |
2006 | add_field_decl (integer_type_node, "size", &chain); | |
2007 | ||
2008 | objc_finish_struct (objc_ivar_record, decls); | |
2009 | return objc_ivar_record; | |
2010 | } | |
2011 | ||
2012 | static void | |
2013 | build_metadata_templates (void) | |
2014 | { | |
2015 | ||
2016 | if (!objc_method_template) | |
2017 | objc_method_template = build_method_template (); | |
2018 | ||
2019 | if (!objc_v2_property_template) | |
944fb799 | 2020 | objc_v2_property_template = build_v2_property_template (); |
d764a8e6 IS |
2021 | |
2022 | if (!objc_v2_ivar_template) | |
2023 | objc_v2_ivar_template = build_v2_ivar_t_template (); | |
2024 | ||
2025 | } | |
2026 | ||
2027 | /* NOTE --- Output NeXT V2 Metadata --- */ | |
2028 | ||
2029 | /* Routine builds name of Interface's main meta-data of type class_t. */ | |
2030 | ||
2031 | static char * | |
2032 | objc_build_internal_classname (tree ident, bool metaclass) | |
2033 | { | |
2034 | static char string[512]; | |
944fb799 MS |
2035 | snprintf (string, 512, "%s_%s", metaclass ? "OBJC_METACLASS_$" |
2036 | : "OBJC_CLASS_$", | |
d764a8e6 IS |
2037 | IDENTIFIER_POINTER (ident)); |
2038 | return string; | |
2039 | } | |
2040 | ||
2041 | /* Build the name for object of type struct class_ro_t */ | |
2042 | ||
2043 | static const char * | |
2044 | newabi_append_ro (const char *name) | |
2045 | { | |
e6e9475b | 2046 | const char *dollar; |
d764a8e6 IS |
2047 | char *p; |
2048 | static char string[BUFSIZE]; | |
2049 | dollar = strchr (name, '$'); | |
2050 | gcc_assert (dollar); | |
2051 | p = string; | |
2052 | *p = '_'; p++; | |
2053 | strncpy (p, name, (int)(dollar - name)); | |
2054 | p += (int)(dollar - name); | |
2055 | sprintf (p, "RO_%s", dollar); | |
2056 | return string; | |
2057 | } | |
2058 | ||
944fb799 MS |
2059 | /* Build the struct message_ref_t msg = |
2060 | {objc_msgSend_fixup_xxx, @selector(func)} | |
c2beaa02 | 2061 | table. */ |
d764a8e6 | 2062 | |
944fb799 | 2063 | static |
d764a8e6 IS |
2064 | void build_v2_message_ref_translation_table (void) |
2065 | { | |
2066 | int count; | |
2067 | msgref_entry *ref; | |
2068 | ||
9771b263 | 2069 | if (!vec_safe_length (msgrefs)) |
d764a8e6 IS |
2070 | return; |
2071 | ||
9771b263 | 2072 | FOR_EACH_VEC_ELT (*msgrefs, count, ref) |
d764a8e6 | 2073 | { |
9771b263 | 2074 | vec<constructor_elt, va_gc> *initializer; |
d764a8e6 IS |
2075 | tree expr, constructor; |
2076 | tree struct_type = TREE_TYPE (ref->refdecl); | |
2077 | location_t loc = DECL_SOURCE_LOCATION (ref->refdecl); | |
2078 | ||
2079 | initializer = NULL; | |
c2beaa02 | 2080 | /* First 'IMP messenger' field... */ |
d764a8e6 IS |
2081 | expr = build_unary_op (loc, ADDR_EXPR, ref->func, 0); |
2082 | expr = convert (objc_v2_imp_type, expr); | |
2083 | CONSTRUCTOR_APPEND_ELT (initializer, NULL_TREE, expr); | |
2084 | ||
c2beaa02 | 2085 | /* ... then 'SEL name' field. */ |
d764a8e6 IS |
2086 | expr = build_selector (ref->selname); |
2087 | CONSTRUCTOR_APPEND_ELT (initializer, NULL_TREE, expr); | |
2088 | constructor = objc_build_constructor (struct_type, initializer); | |
944fb799 | 2089 | finish_var_decl (ref->refdecl, constructor); |
d764a8e6 IS |
2090 | } |
2091 | } | |
2092 | ||
c2beaa02 NP |
2093 | /* Build decl = initializer; for each externally visible class |
2094 | reference. */ | |
d764a8e6 IS |
2095 | |
2096 | static void | |
2097 | build_v2_classrefs_table (void) | |
2098 | { | |
2099 | int count; | |
2100 | ident_data_tuple *ref; | |
2101 | ||
9771b263 | 2102 | if (!vec_safe_length (classrefs)) |
d764a8e6 IS |
2103 | return; |
2104 | ||
9771b263 | 2105 | FOR_EACH_VEC_ELT (*classrefs, count, ref) |
d764a8e6 IS |
2106 | { |
2107 | tree expr = ref->ident; | |
2108 | tree decl = ref->data; | |
c2beaa02 NP |
2109 | /* Interface with no implementation and yet one of its messages |
2110 | has been used. Need to generate a full address-of tree for it | |
2111 | here. */ | |
d764a8e6 IS |
2112 | if (TREE_CODE (expr) == IDENTIFIER_NODE) |
2113 | { | |
2114 | const char *name = objc_build_internal_classname (expr, false); | |
2115 | expr = create_extern_decl (objc_v2_class_template, name); | |
2116 | expr = convert (objc_class_type, build_fold_addr_expr (expr)); | |
2117 | } | |
2118 | /* The runtime wants this, even if it appears unused, so we must force the | |
ecd5727c IS |
2119 | output. */ |
2120 | DECL_PRESERVE_P (decl) = 1; | |
d764a8e6 IS |
2121 | finish_var_decl (decl, expr); |
2122 | } | |
2123 | } | |
2124 | ||
c2beaa02 NP |
2125 | /* Build decl = initializer; for each externally visible super class |
2126 | reference. */ | |
d764a8e6 IS |
2127 | |
2128 | static void | |
2129 | build_v2_super_classrefs_table (bool metaclass) | |
2130 | { | |
2131 | int count; | |
2132 | ident_data_tuple *ref; | |
9771b263 | 2133 | vec<ident_data_tuple, va_gc> *list = metaclass ? metaclass_super_refs |
d764a8e6 IS |
2134 | : class_super_refs; |
2135 | ||
9771b263 | 2136 | if (!vec_safe_length (list)) |
d764a8e6 IS |
2137 | return; |
2138 | ||
9771b263 | 2139 | FOR_EACH_VEC_ELT (*list, count, ref) |
d764a8e6 IS |
2140 | { |
2141 | tree expr = ref->ident; | |
2142 | tree decl = ref->data; | |
c2beaa02 NP |
2143 | /* Interface with no implementation and yet one of its messages |
2144 | has been used. Need to generate a full address-of tree for it | |
2145 | here. */ | |
d764a8e6 IS |
2146 | if (TREE_CODE (expr) == IDENTIFIER_NODE) |
2147 | { | |
2148 | const char * name = objc_build_internal_classname (expr, metaclass); | |
2149 | expr = create_extern_decl (objc_v2_class_template, name); | |
2150 | expr = convert (objc_class_type, build_fold_addr_expr (expr)); | |
2151 | } | |
2152 | finish_var_decl (decl, expr); | |
2153 | } | |
2154 | } | |
2155 | ||
c2beaa02 NP |
2156 | /* Add the global class meta-data declaration to the list which later |
2157 | on ends up in the __class_list section. */ | |
d764a8e6 | 2158 | |
9771b263 | 2159 | static GTY(()) vec<tree, va_gc> *class_list; |
d764a8e6 | 2160 | |
944fb799 | 2161 | static void |
d764a8e6 IS |
2162 | objc_v2_add_to_class_list (tree global_class_decl) |
2163 | { | |
9771b263 | 2164 | vec_safe_push (class_list, global_class_decl); |
d764a8e6 IS |
2165 | } |
2166 | ||
9771b263 | 2167 | static GTY(()) vec<tree, va_gc> *nonlazy_class_list; |
d764a8e6 | 2168 | |
c2beaa02 NP |
2169 | /* Add the global class meta-data declaration to the list which later |
2170 | on ends up in the __nonlazy_class section. */ | |
d764a8e6 | 2171 | |
944fb799 | 2172 | static void |
d764a8e6 IS |
2173 | objc_v2_add_to_nonlazy_class_list (tree global_class_decl) |
2174 | { | |
9771b263 | 2175 | vec_safe_push (nonlazy_class_list, global_class_decl); |
d764a8e6 IS |
2176 | } |
2177 | ||
9771b263 | 2178 | static GTY(()) vec<tree, va_gc> *category_list; |
d764a8e6 | 2179 | |
c2beaa02 NP |
2180 | /* Add the category meta-data declaration to the list which later on |
2181 | ends up in the __nonlazy_category section. */ | |
d764a8e6 | 2182 | |
944fb799 | 2183 | static void |
d764a8e6 IS |
2184 | objc_v2_add_to_category_list (tree decl) |
2185 | { | |
9771b263 | 2186 | vec_safe_push (category_list, decl); |
d764a8e6 IS |
2187 | } |
2188 | ||
9771b263 | 2189 | static GTY(()) vec<tree, va_gc> *nonlazy_category_list; |
d764a8e6 | 2190 | |
c2beaa02 NP |
2191 | /* Add the category meta-data declaration to the list which later on |
2192 | ends up in the __category_list section. */ | |
d764a8e6 | 2193 | |
944fb799 | 2194 | static void |
d764a8e6 IS |
2195 | objc_v2_add_to_nonlazy_category_list (tree decl) |
2196 | { | |
9771b263 | 2197 | vec_safe_push (nonlazy_category_list, decl); |
d764a8e6 IS |
2198 | } |
2199 | ||
2200 | static bool | |
2201 | has_load_impl (tree clsmeth) | |
2202 | { | |
2203 | while (clsmeth) | |
2204 | { | |
2205 | tree id = METHOD_SEL_NAME (clsmeth); | |
2206 | if (IDENTIFIER_LENGTH (id) == 4 | |
6ba3079d | 2207 | && startswith (IDENTIFIER_POINTER (id), "load")) |
d764a8e6 IS |
2208 | return true; |
2209 | clsmeth = DECL_CHAIN (clsmeth); | |
2210 | } | |
2211 | ||
2212 | return false; | |
2213 | } | |
2214 | ||
c2beaa02 NP |
2215 | /* Build a __{class,category}_list section table containing address of |
2216 | all @implemented {class,category} meta-data. */ | |
d764a8e6 IS |
2217 | |
2218 | static void | |
9771b263 | 2219 | build_v2_address_table (vec<tree, va_gc> *src, const char *nam, tree attr) |
d764a8e6 IS |
2220 | { |
2221 | int count=0; | |
2222 | tree type, decl, expr; | |
9771b263 | 2223 | vec<constructor_elt, va_gc> *initlist = NULL; |
d764a8e6 | 2224 | |
9771b263 | 2225 | if (!vec_safe_length (src)) |
d764a8e6 IS |
2226 | return; |
2227 | ||
9771b263 | 2228 | FOR_EACH_VEC_ELT (*src, count, decl) |
d764a8e6 IS |
2229 | { |
2230 | #ifndef OBJCPLUS | |
2231 | tree purpose = build_int_cst (NULL_TREE, count); | |
2232 | #else | |
2233 | tree purpose = NULL_TREE; | |
2234 | #endif | |
2235 | expr = convert (objc_class_type, build_fold_addr_expr (decl)); | |
2236 | CONSTRUCTOR_APPEND_ELT (initlist, purpose, expr); | |
2237 | } | |
2238 | gcc_assert (count > 0); | |
944fb799 | 2239 | type = build_array_type (objc_class_type, |
d764a8e6 IS |
2240 | build_index_type (build_int_cst (NULL_TREE, count - 1))); |
2241 | decl = start_var_decl (type, nam); | |
c2beaa02 NP |
2242 | /* The runtime wants this, even if it appears unused, so we must |
2243 | force the output. */ | |
d764a8e6 IS |
2244 | DECL_PRESERVE_P (decl) = 1; |
2245 | expr = objc_build_constructor (type, initlist); | |
2246 | OBJCMETA (decl, objc_meta, attr); | |
2247 | finish_var_decl (decl, expr); | |
2248 | } | |
2249 | ||
c2beaa02 NP |
2250 | /* Build decl = initializer; for each protocol referenced in |
2251 | @protocol(MyProt) expression. Refs as built in the entry section | |
2252 | above. */ | |
d764a8e6 IS |
2253 | |
2254 | static void | |
2255 | build_v2_protocol_list_translation_table (void) | |
2256 | { | |
2257 | int count; | |
2258 | prot_list_entry *ref; | |
944fb799 | 2259 | |
d764a8e6 IS |
2260 | if (!protrefs) |
2261 | return; | |
2262 | ||
9771b263 | 2263 | FOR_EACH_VEC_ELT (*protrefs, count, ref) |
d764a8e6 IS |
2264 | { |
2265 | char buf[BUFSIZE]; | |
2266 | tree expr; | |
2267 | gcc_assert (TREE_CODE (ref->id) == PROTOCOL_INTERFACE_TYPE); | |
944fb799 | 2268 | snprintf (buf, BUFSIZE, "_OBJC_Protocol_%s", |
d764a8e6 IS |
2269 | IDENTIFIER_POINTER (PROTOCOL_NAME (ref->id))); |
2270 | expr = start_var_decl (objc_v2_protocol_template, buf); | |
2271 | expr = convert (objc_protocol_type, build_fold_addr_expr (expr)); | |
2272 | finish_var_decl (ref->refdecl, expr); | |
2273 | } | |
2274 | /* TODO: Maybe we could explicitly delete the vec. now? */ | |
2275 | } | |
2276 | ||
9771b263 | 2277 | static GTY (()) vec<prot_list_entry, va_gc> *protlist; |
d764a8e6 | 2278 | |
c2beaa02 NP |
2279 | /* Add the local protocol meta-data declaration to the list which |
2280 | later on ends up in the __protocol_list section. */ | |
d764a8e6 IS |
2281 | |
2282 | static void | |
2283 | objc_add_to_protocol_list (tree protocol_interface_decl, tree protocol_decl) | |
2284 | { | |
2285 | prot_list_entry e; | |
2286 | if (!protlist) | |
2287 | /* Arbitrary init count. */ | |
9771b263 | 2288 | vec_alloc (protlist, 32); |
d764a8e6 IS |
2289 | e.id = protocol_interface_decl; |
2290 | e.refdecl = protocol_decl; | |
9771b263 | 2291 | vec_safe_push (protlist, e); |
d764a8e6 IS |
2292 | } |
2293 | ||
c2beaa02 NP |
2294 | /* Build the __protocol_list section table containing address of all |
2295 | generate protocol_t meta-data. */ | |
d764a8e6 IS |
2296 | |
2297 | static void | |
2298 | build_v2_protocol_list_address_table (void) | |
2299 | { | |
2300 | int count; | |
2301 | prot_list_entry *ref; | |
9771b263 | 2302 | if (!vec_safe_length (protlist)) |
d764a8e6 IS |
2303 | return; |
2304 | ||
9771b263 | 2305 | FOR_EACH_VEC_ELT (*protlist, count, ref) |
d764a8e6 IS |
2306 | { |
2307 | tree decl, expr; | |
2308 | char buf[BUFSIZE]; | |
2309 | gcc_assert (ref->id && TREE_CODE (ref->id) == PROTOCOL_INTERFACE_TYPE); | |
2310 | snprintf (buf, BUFSIZE, "_OBJC_LabelProtocol_%s", | |
2311 | IDENTIFIER_POINTER (PROTOCOL_NAME (ref->id))); | |
07c7498d IS |
2312 | if (flag_next_runtime >= USE_FIXUP_BEFORE) |
2313 | { | |
2314 | decl = create_hidden_decl (objc_protocol_type, buf, /*is def=*/true); | |
2315 | DECL_WEAK (decl) = true; | |
2316 | } | |
2317 | else | |
2318 | decl = create_global_decl (objc_protocol_type, buf, /*is def=*/true); | |
d764a8e6 IS |
2319 | expr = convert (objc_protocol_type, build_fold_addr_expr (ref->refdecl)); |
2320 | OBJCMETA (decl, objc_meta, meta_label_protocollist); | |
2321 | finish_var_decl (decl, expr); | |
ecd5727c | 2322 | DECL_PRESERVE_P (decl) = 1; |
d764a8e6 IS |
2323 | } |
2324 | ||
2325 | /* TODO: delete the vec. */ | |
dd5a833e | 2326 | /* TODO: upgrade to the clang/llvm hidden version. */ |
d764a8e6 IS |
2327 | } |
2328 | ||
c2beaa02 NP |
2329 | /* This routine declares a variable to hold meta data for 'struct |
2330 | protocol_list_t'. */ | |
d764a8e6 IS |
2331 | |
2332 | static tree | |
2333 | generate_v2_protocol_list (tree i_or_p, tree klass_ctxt) | |
2334 | { | |
2335 | tree refs_decl, lproto, e, plist, ptempl_p_t; | |
2336 | int size = 0; | |
9771b263 | 2337 | vec<constructor_elt, va_gc> *initlist = NULL; |
d764a8e6 IS |
2338 | char buf[BUFSIZE]; |
2339 | ||
2340 | if (TREE_CODE (i_or_p) == CLASS_INTERFACE_TYPE | |
2341 | || TREE_CODE (i_or_p) == CATEGORY_INTERFACE_TYPE) | |
2342 | plist = CLASS_PROTOCOL_LIST (i_or_p); | |
2343 | else if (TREE_CODE (i_or_p) == PROTOCOL_INTERFACE_TYPE) | |
2344 | plist = PROTOCOL_LIST (i_or_p); | |
2345 | else | |
2346 | gcc_unreachable (); | |
2347 | ||
2348 | /* Compute size. */ | |
2349 | for (lproto = plist; lproto; lproto = TREE_CHAIN (lproto)) | |
2350 | if (TREE_CODE (TREE_VALUE (lproto)) == PROTOCOL_INTERFACE_TYPE | |
2351 | && PROTOCOL_FORWARD_DECL (TREE_VALUE (lproto))) | |
2352 | size++; | |
2353 | ||
2354 | /* Build initializer. */ | |
2355 | ||
2356 | ptempl_p_t = build_pointer_type (objc_v2_protocol_template); | |
2357 | e = build_int_cst (ptempl_p_t, size); | |
2358 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, e); | |
2359 | ||
2360 | for (lproto = plist; lproto; lproto = TREE_CHAIN (lproto)) | |
2361 | { | |
2362 | tree pval = TREE_VALUE (lproto); | |
2363 | ||
2364 | if (TREE_CODE (pval) == PROTOCOL_INTERFACE_TYPE | |
2365 | && PROTOCOL_FORWARD_DECL (pval)) | |
2366 | { | |
2367 | tree fwref = PROTOCOL_FORWARD_DECL (pval); | |
2368 | location_t loc = DECL_SOURCE_LOCATION (fwref) ; | |
2369 | e = build_unary_op (loc, ADDR_EXPR, fwref, 0); | |
2370 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, e); | |
2371 | } | |
2372 | } | |
2373 | ||
2374 | /* static struct protocol_list_t *list[size]; */ | |
2375 | ||
2376 | switch (TREE_CODE (i_or_p)) | |
2377 | { | |
2378 | case PROTOCOL_INTERFACE_TYPE: | |
944fb799 | 2379 | snprintf (buf, BUFSIZE, "_OBJC_ProtocolRefs_%s", |
d764a8e6 IS |
2380 | IDENTIFIER_POINTER (PROTOCOL_NAME (i_or_p))); |
2381 | break; | |
2382 | case CLASS_INTERFACE_TYPE: | |
944fb799 | 2383 | snprintf (buf, BUFSIZE, "_OBJC_ClassProtocols_%s", |
d764a8e6 IS |
2384 | IDENTIFIER_POINTER (CLASS_NAME (i_or_p))); |
2385 | break; | |
2386 | case CATEGORY_INTERFACE_TYPE: | |
944fb799 | 2387 | snprintf (buf, BUFSIZE, "_OBJC_CategoryProtocols_%s_%s", |
d764a8e6 IS |
2388 | IDENTIFIER_POINTER (CLASS_NAME (klass_ctxt)), |
2389 | IDENTIFIER_POINTER (CLASS_SUPER_NAME (klass_ctxt))); | |
2390 | break; | |
2391 | default: | |
2392 | gcc_unreachable (); | |
2393 | } | |
2394 | ||
2395 | refs_decl = start_var_decl (build_sized_array_type (ptempl_p_t, size+1), | |
2396 | buf); | |
2397 | /* ObjC2 puts all these in the base section. */ | |
2398 | OBJCMETA (refs_decl, objc_meta, meta_base); | |
2399 | DECL_PRESERVE_P (refs_decl) = 1; | |
944fb799 | 2400 | finish_var_decl (refs_decl, |
d764a8e6 IS |
2401 | objc_build_constructor (TREE_TYPE (refs_decl),initlist)); |
2402 | return refs_decl; | |
2403 | } | |
2404 | ||
c2beaa02 NP |
2405 | /* This routine builds one 'struct method_t' initializer list. Note |
2406 | that the old ABI is supposed to build 'struct objc_method' which | |
2407 | has 3 fields, but it does not build the initialization expression | |
2408 | for 'method_imp' which for protocols is NULL any way. To be | |
587ae1e3 | 2409 | consistent with declaration of 'struct method_t', in the new ABI we |
c2beaa02 | 2410 | set the method_t.imp to NULL. */ |
d764a8e6 IS |
2411 | |
2412 | static tree | |
2413 | build_v2_descriptor_table_initializer (tree type, tree entries) | |
2414 | { | |
9771b263 | 2415 | vec<constructor_elt, va_gc> *initlist = NULL; |
d764a8e6 IS |
2416 | do |
2417 | { | |
9771b263 | 2418 | vec<constructor_elt, va_gc> *eltlist = NULL; |
944fb799 | 2419 | CONSTRUCTOR_APPEND_ELT (eltlist, NULL_TREE, |
d764a8e6 | 2420 | build_selector (METHOD_SEL_NAME (entries))); |
944fb799 | 2421 | CONSTRUCTOR_APPEND_ELT (eltlist, NULL_TREE, |
d764a8e6 IS |
2422 | add_objc_string (METHOD_ENCODING (entries), |
2423 | meth_var_types)); | |
2424 | CONSTRUCTOR_APPEND_ELT (eltlist, NULL_TREE, null_pointer_node); | |
2425 | ||
944fb799 | 2426 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, |
d764a8e6 IS |
2427 | objc_build_constructor (type, eltlist)); |
2428 | entries = TREE_CHAIN (entries); | |
2429 | } | |
2430 | while (entries); | |
2431 | ||
2432 | return objc_build_constructor (build_array_type (type, 0), initlist); | |
2433 | } | |
2434 | ||
c2beaa02 NP |
2435 | /* struct method_list_t |
2436 | { | |
d764a8e6 IS |
2437 | uint32_t entsize; |
2438 | uint32_t method_count; | |
2439 | struct objc_method method_list[method_count]; | |
c2beaa02 | 2440 | }; */ |
d764a8e6 IS |
2441 | |
2442 | static tree | |
2443 | build_v2_method_list_template (tree list_type, int size) | |
2444 | { | |
2445 | tree method_list_t_record; | |
2446 | tree array_type, decls, *chain = NULL; | |
2447 | ||
2448 | method_list_t_record = objc_start_struct (NULL_TREE); | |
944fb799 | 2449 | |
c2beaa02 | 2450 | /* uint32_t const entsize; */ |
d764a8e6 IS |
2451 | decls = add_field_decl (integer_type_node, "entsize", &chain); |
2452 | ||
2453 | /* int method_count; */ | |
2454 | add_field_decl (integer_type_node, "method_count", &chain); | |
2455 | ||
2456 | /* struct objc_method method_list[]; */ | |
2457 | array_type = build_sized_array_type (list_type, size); | |
2458 | add_field_decl (array_type, "method_list", &chain); | |
2459 | ||
2460 | objc_finish_struct (method_list_t_record, decls); | |
2461 | return method_list_t_record; | |
2462 | } | |
2463 | ||
c2beaa02 NP |
2464 | /* Note, as above that we are building to the objc_method_template |
2465 | which has the *imp field. ABI0/1 build with | |
2466 | objc_method_prototype_template which is missing this field. */ | |
944fb799 | 2467 | static tree |
d764a8e6 | 2468 | generate_v2_meth_descriptor_table (tree chain, tree protocol, |
6224a8aa IS |
2469 | const char *prefix, tree attr, |
2470 | vec<tree>& all_meths) | |
d764a8e6 | 2471 | { |
6224a8aa | 2472 | tree method_list_template, initlist, decl; |
d764a8e6 | 2473 | int size, entsize; |
9771b263 | 2474 | vec<constructor_elt, va_gc> *v = NULL; |
d764a8e6 IS |
2475 | char buf[BUFSIZE]; |
2476 | ||
2477 | if (!chain || !prefix) | |
2478 | return NULL_TREE; | |
2479 | ||
6224a8aa | 2480 | tree method = chain; |
d764a8e6 | 2481 | size = 0; |
6224a8aa | 2482 | while (method) |
d764a8e6 | 2483 | { |
6224a8aa IS |
2484 | if (! METHOD_ENCODING (method)) |
2485 | METHOD_ENCODING (method) = encode_method_prototype (method); | |
2486 | all_meths.safe_push (method); | |
2487 | method = TREE_CHAIN (method); | |
d764a8e6 IS |
2488 | size++; |
2489 | } | |
2490 | ||
2491 | gcc_assert (size); | |
2492 | method_list_template = build_v2_method_list_template (objc_method_template, | |
2493 | size); | |
944fb799 | 2494 | snprintf (buf, BUFSIZE, "%s_%s", prefix, |
d764a8e6 IS |
2495 | IDENTIFIER_POINTER (PROTOCOL_NAME (protocol))); |
2496 | ||
2497 | decl = start_var_decl (method_list_template, buf); | |
2498 | ||
2499 | entsize = TREE_INT_CST_LOW (TYPE_SIZE_UNIT (objc_method_template)); | |
2500 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, build_int_cst (NULL_TREE, entsize)); | |
2501 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, build_int_cst (NULL_TREE, size)); | |
944fb799 | 2502 | initlist = |
d764a8e6 IS |
2503 | build_v2_descriptor_table_initializer (objc_method_template, |
2504 | chain); | |
2505 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, initlist); | |
2506 | /* Get into the right section. */ | |
2507 | OBJCMETA (decl, objc_meta, attr); | |
2508 | finish_var_decl (decl, objc_build_constructor (method_list_template, v)); | |
2509 | return decl; | |
2510 | } | |
2511 | ||
6224a8aa IS |
2512 | static tree |
2513 | generate_v2_meth_type_list (vec<tree>& all_meths, tree protocol, | |
2514 | const char *prefix) | |
2515 | { | |
2516 | if (all_meths.is_empty () || !prefix) | |
2517 | return NULL_TREE; | |
2518 | ||
2519 | unsigned size = all_meths.length (); | |
2520 | tree list_type = build_sized_array_type (string_type_node, size); | |
2521 | char *nam; | |
2522 | asprintf (&nam, "%s_%s", prefix, | |
2523 | IDENTIFIER_POINTER (PROTOCOL_NAME (protocol))); | |
2524 | tree decl = start_var_decl (list_type, nam); | |
2525 | free (nam); | |
2526 | OBJCMETA (decl, objc_meta, meta_base); | |
2527 | vec<constructor_elt, va_gc> *v = NULL; | |
2528 | ||
2529 | for (unsigned i = 0; i < size; ++i) | |
2530 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
2531 | add_objc_string (METHOD_ENCODING (all_meths[i]), | |
2532 | meth_var_types)); | |
2533 | finish_var_decl (decl, objc_build_constructor (list_type, v)); | |
2534 | return decl; | |
2535 | } | |
2536 | ||
c2beaa02 NP |
2537 | /* This routine builds the initializer list to initialize the 'struct |
2538 | _prop_t prop_list[]' field of 'struct _prop_list_t' meta-data. */ | |
d764a8e6 IS |
2539 | |
2540 | static tree | |
2541 | build_v2_property_table_initializer (tree type, tree context) | |
2542 | { | |
2543 | tree x; | |
9771b263 | 2544 | vec<constructor_elt, va_gc> *inits = NULL; |
d764a8e6 IS |
2545 | if (TREE_CODE (context) == PROTOCOL_INTERFACE_TYPE) |
2546 | x = CLASS_PROPERTY_DECL (context); | |
2547 | else | |
2548 | x = IMPL_PROPERTY_DECL (context); | |
2549 | ||
2550 | for (; x; x = TREE_CHAIN (x)) | |
2551 | { | |
9771b263 | 2552 | vec<constructor_elt, va_gc> *elemlist = NULL; |
c2beaa02 NP |
2553 | /* NOTE! sections where property name/attribute go MUST change |
2554 | later. */ | |
d764a8e6 IS |
2555 | tree attribute, name_ident = PROPERTY_NAME (x); |
2556 | ||
944fb799 | 2557 | CONSTRUCTOR_APPEND_ELT (elemlist, NULL_TREE, |
d764a8e6 IS |
2558 | add_objc_string (name_ident, prop_names_attr)); |
2559 | ||
2560 | attribute = objc_v2_encode_prop_attr (x); | |
944fb799 | 2561 | CONSTRUCTOR_APPEND_ELT (elemlist, NULL_TREE, |
d764a8e6 IS |
2562 | add_objc_string (attribute, prop_names_attr)); |
2563 | ||
2564 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, | |
2565 | objc_build_constructor (type, elemlist)); | |
2566 | } | |
2567 | ||
2568 | return objc_build_constructor (build_array_type (type, 0),inits); | |
2569 | } | |
2570 | ||
2571 | /* This routine builds the following type: | |
c2beaa02 NP |
2572 | struct _prop_list_t |
2573 | { | |
d764a8e6 IS |
2574 | uint32_t entsize; // sizeof (struct _prop_t) |
2575 | uint32_t prop_count; | |
2576 | struct _prop_t prop_list [prop_count]; | |
2577 | } | |
2578 | */ | |
2579 | ||
2580 | static tree | |
2581 | build_v2_property_list_template (tree list_type, int size) | |
2582 | { | |
2583 | tree property_list_t_record; | |
2584 | tree array_type, decls, *chain = NULL; | |
2585 | ||
2586 | /* anonymous. */ | |
2587 | property_list_t_record = objc_start_struct (NULL_TREE); | |
944fb799 | 2588 | |
c2beaa02 | 2589 | /* uint32_t const entsize; */ |
d764a8e6 IS |
2590 | decls = add_field_decl (integer_type_node, "entsize", &chain); |
2591 | ||
c2beaa02 | 2592 | /* int prop_count; */ |
d764a8e6 IS |
2593 | add_field_decl (integer_type_node, "prop_count", &chain); |
2594 | ||
2595 | /* struct _prop_t prop_list[]; */ | |
2596 | array_type = build_sized_array_type (list_type, size); | |
2597 | add_field_decl (array_type, "prop_list", &chain); | |
2598 | ||
2599 | objc_finish_struct (property_list_t_record, decls); | |
2600 | return property_list_t_record; | |
2601 | } | |
2602 | ||
c2beaa02 NP |
2603 | /* Top-level routine to generate property tables for each |
2604 | implementation. */ | |
d764a8e6 IS |
2605 | |
2606 | static tree | |
2607 | generate_v2_property_table (tree context, tree klass_ctxt) | |
2608 | { | |
2609 | tree x, decl, initlist, property_list_template; | |
2610 | bool is_proto = false; | |
9771b263 | 2611 | vec<constructor_elt, va_gc> *inits = NULL; |
d764a8e6 IS |
2612 | int init_val, size = 0; |
2613 | char buf[BUFSIZE]; | |
2614 | ||
2615 | if (context) | |
2616 | { | |
2617 | gcc_assert (TREE_CODE (context) == PROTOCOL_INTERFACE_TYPE); | |
2618 | x = CLASS_PROPERTY_DECL (context); | |
2619 | is_proto = true; | |
2620 | } | |
2621 | else | |
2622 | x = IMPL_PROPERTY_DECL (klass_ctxt); | |
2623 | ||
2624 | for (; x; x = TREE_CHAIN (x)) | |
2625 | size++; | |
2626 | ||
2627 | if (size == 0) | |
2628 | return NULL_TREE; | |
2629 | ||
944fb799 MS |
2630 | property_list_template = |
2631 | build_v2_property_list_template (objc_v2_property_template, | |
d764a8e6 IS |
2632 | size); |
2633 | ||
2634 | initlist = build_v2_property_table_initializer (objc_v2_property_template, | |
2635 | is_proto ? context | |
2636 | : klass_ctxt); | |
2637 | ||
2638 | init_val = TREE_INT_CST_LOW (TYPE_SIZE_UNIT (objc_v2_property_template)); | |
2639 | if (is_proto) | |
2640 | snprintf (buf, BUFSIZE, "_OBJC_ProtocolPropList_%s", | |
2641 | IDENTIFIER_POINTER (PROTOCOL_NAME (context))); | |
2642 | else | |
2643 | snprintf (buf, BUFSIZE, "_OBJC_ClassPropList_%s", | |
2644 | IDENTIFIER_POINTER (CLASS_NAME (klass_ctxt))); | |
2645 | ||
2646 | decl = start_var_decl (property_list_template, buf); | |
2647 | ||
944fb799 | 2648 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, |
d764a8e6 | 2649 | build_int_cst (NULL_TREE, init_val)); |
944fb799 | 2650 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, |
d764a8e6 IS |
2651 | build_int_cst (NULL_TREE, size)); |
2652 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, initlist); | |
2653 | ||
2654 | OBJCMETA (decl, objc_meta, meta_base); | |
2655 | finish_var_decl (decl, objc_build_constructor (TREE_TYPE (decl), inits)); | |
2656 | return decl; | |
2657 | } | |
2658 | ||
2659 | static tree | |
2660 | build_v2_protocol_initializer (tree type, tree protocol_name, tree protocol_list, | |
944fb799 | 2661 | tree inst_methods, tree class_methods, |
d764a8e6 | 2662 | tree opt_ins_meth, tree opt_cls_meth, |
6224a8aa IS |
2663 | tree property_list, tree ext_meth_types, |
2664 | tree demangled_name, tree class_prop_list) | |
d764a8e6 IS |
2665 | { |
2666 | tree expr, ttyp; | |
2667 | location_t loc; | |
9771b263 | 2668 | vec<constructor_elt, va_gc> *inits = NULL; |
d764a8e6 IS |
2669 | |
2670 | /* TODO: find a better representation of location from the inputs. */ | |
2671 | loc = UNKNOWN_LOCATION; | |
2672 | ||
2673 | /* This is NULL for the new ABI. */ | |
944fb799 | 2674 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, |
d764a8e6 IS |
2675 | convert (objc_object_type, null_pointer_node)); |
2676 | ||
2677 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, protocol_name); | |
2678 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, protocol_list); | |
2679 | ||
2680 | ttyp = objc_method_proto_list_ptr; | |
2681 | if (inst_methods) | |
2682 | expr = convert (ttyp, build_unary_op (loc, ADDR_EXPR, inst_methods, 0)); | |
2683 | else | |
2684 | expr = convert (ttyp, null_pointer_node); | |
2685 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, expr); | |
2686 | ||
2687 | if (class_methods) | |
2688 | expr = convert (ttyp, build_unary_op (loc, ADDR_EXPR, class_methods, 0)); | |
2689 | else | |
2690 | expr = convert (ttyp, null_pointer_node); | |
2691 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, expr); | |
2692 | ||
2693 | if (opt_ins_meth) | |
2694 | expr = convert (ttyp, build_unary_op (loc, ADDR_EXPR, opt_ins_meth, 0)); | |
2695 | else | |
2696 | expr = convert (ttyp, null_pointer_node); | |
2697 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, expr); | |
2698 | ||
2699 | if (opt_cls_meth) | |
2700 | expr = convert (ttyp, build_unary_op (loc, ADDR_EXPR, opt_cls_meth, 0)); | |
2701 | else | |
2702 | expr = convert (ttyp, null_pointer_node); | |
2703 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, expr); | |
2704 | ||
2705 | ttyp = objc_prop_list_ptr; | |
2706 | if (property_list) | |
2707 | expr = convert (ttyp, build_unary_op (loc, ADDR_EXPR, property_list, 0)); | |
2708 | else | |
2709 | expr = convert (ttyp, null_pointer_node); | |
2710 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, expr); | |
2711 | ||
2712 | /* const uint32_t size; = sizeof(struct protocol_t) */ | |
944fb799 | 2713 | expr = build_int_cst (integer_type_node, |
d764a8e6 IS |
2714 | TREE_INT_CST_LOW (TYPE_SIZE_UNIT (objc_v2_protocol_template))); |
2715 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, expr); | |
2716 | /* const uint32_t flags; = 0 */ | |
2717 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, integer_zero_node); | |
2718 | ||
6224a8aa IS |
2719 | ttyp = build_pointer_type (string_type_node); |
2720 | if (ext_meth_types) | |
2721 | expr = convert (ttyp, build_unary_op (loc, ADDR_EXPR, ext_meth_types, 0)); | |
2722 | else | |
2723 | expr = convert (ttyp, null_pointer_node); | |
2724 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, expr); | |
2725 | ||
2726 | ttyp = string_type_node; | |
2727 | if (demangled_name) | |
2728 | expr = convert (ttyp, build_unary_op (loc, ADDR_EXPR, demangled_name, 0)); | |
2729 | else | |
2730 | expr = convert (ttyp, null_pointer_node); | |
2731 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, expr); | |
2732 | ||
2733 | ttyp = objc_prop_list_ptr; | |
2734 | if (class_prop_list) | |
2735 | expr = convert (ttyp, build_unary_op (loc, ADDR_EXPR, class_prop_list, 0)); | |
2736 | else | |
2737 | expr = convert (ttyp, null_pointer_node); | |
2738 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, expr); | |
2739 | ||
2740 | return objc_build_constructor (type, inits); | |
d764a8e6 IS |
2741 | } |
2742 | ||
c2beaa02 NP |
2743 | /* Main routine to build all meta data for all protocols used in a |
2744 | translation unit. */ | |
d764a8e6 IS |
2745 | |
2746 | static void | |
2747 | generate_v2_protocols (void) | |
2748 | { | |
2749 | tree p ; | |
2750 | bool some = false; | |
2751 | ||
2752 | if (!protocol_chain) | |
2753 | return ; | |
2754 | ||
c2beaa02 NP |
2755 | /* If a protocol was directly referenced, pull in indirect |
2756 | references. */ | |
d764a8e6 IS |
2757 | for (p = protocol_chain; p; p = TREE_CHAIN (p)) |
2758 | if (PROTOCOL_FORWARD_DECL (p) && PROTOCOL_LIST (p)) | |
2759 | generate_protocol_references (PROTOCOL_LIST (p)); | |
2760 | ||
2761 | for (p = protocol_chain; p; p = TREE_CHAIN (p)) | |
2762 | { | |
2763 | location_t loc; | |
2764 | tree inst_meth, class_meth, opt_inst_meth, opt_class_meth, props; | |
2765 | tree decl, initlist, protocol_name_expr, refs_decl, refs_expr; | |
2766 | ||
2767 | /* If protocol wasn't referenced, don't generate any code. */ | |
2768 | decl = PROTOCOL_FORWARD_DECL (p); | |
2769 | ||
2770 | if (!decl) | |
2771 | continue; | |
2772 | ||
2773 | loc = DECL_SOURCE_LOCATION (decl); | |
2774 | some = true; | |
2775 | ||
6224a8aa | 2776 | vec<tree> all_meths = vNULL; |
944fb799 | 2777 | inst_meth = |
d764a8e6 IS |
2778 | generate_v2_meth_descriptor_table (PROTOCOL_NST_METHODS (p), p, |
2779 | "_OBJC_ProtocolInstanceMethods", | |
6224a8aa | 2780 | meta_proto_nst_meth, all_meths); |
d764a8e6 | 2781 | |
944fb799 | 2782 | class_meth = |
d764a8e6 IS |
2783 | generate_v2_meth_descriptor_table (PROTOCOL_CLS_METHODS (p), p, |
2784 | "_OBJC_ProtocolClassMethods", | |
6224a8aa | 2785 | meta_proto_cls_meth, all_meths); |
d764a8e6 IS |
2786 | |
2787 | opt_inst_meth = | |
2788 | generate_v2_meth_descriptor_table (PROTOCOL_OPTIONAL_NST_METHODS (p), p, | |
6224a8aa IS |
2789 | "_OBJC_ProtocolOptInstMethods", |
2790 | meta_proto_nst_meth, all_meths); | |
d764a8e6 | 2791 | |
944fb799 | 2792 | opt_class_meth = |
d764a8e6 | 2793 | generate_v2_meth_descriptor_table (PROTOCOL_OPTIONAL_CLS_METHODS (p), p, |
6224a8aa IS |
2794 | "_OBJC_ProtocolOptClassMethods", |
2795 | meta_proto_cls_meth, all_meths); | |
d764a8e6 IS |
2796 | |
2797 | if (PROTOCOL_LIST (p)) | |
2798 | refs_decl = generate_v2_protocol_list (p, NULL_TREE); | |
2799 | else | |
2800 | refs_decl = 0; | |
2801 | ||
2802 | /* static struct objc_protocol _OBJC_Protocol_<mumble>; */ | |
2803 | protocol_name_expr = add_objc_string (PROTOCOL_NAME (p), class_names); | |
2804 | ||
2805 | if (refs_decl) | |
2806 | refs_expr = convert (build_pointer_type (objc_v2_protocol_template), | |
2807 | build_unary_op (loc, ADDR_EXPR, refs_decl, 0)); | |
2808 | else | |
2809 | refs_expr = build_int_cst (NULL_TREE, 0); | |
2810 | ||
2811 | props = generate_v2_property_table (p, NULL_TREE); | |
2812 | ||
6224a8aa IS |
2813 | tree ext_meth_types |
2814 | = generate_v2_meth_type_list (all_meths, p, | |
2815 | "_OBJC_ProtocolMethodTypes"); | |
2816 | tree demangled_name = NULL_TREE; | |
2817 | tree class_prop_list = NULL_TREE; | |
2818 | ||
d764a8e6 IS |
2819 | initlist = build_v2_protocol_initializer (TREE_TYPE (decl), |
2820 | protocol_name_expr, refs_expr, | |
2821 | inst_meth, class_meth, | |
2822 | opt_inst_meth, opt_class_meth, | |
6224a8aa IS |
2823 | props, ext_meth_types, |
2824 | demangled_name,class_prop_list); | |
d764a8e6 IS |
2825 | finish_var_decl (decl, initlist); |
2826 | objc_add_to_protocol_list (p, decl); | |
6224a8aa | 2827 | all_meths.truncate (0); |
d764a8e6 IS |
2828 | } |
2829 | ||
2830 | if (some) | |
2831 | { | |
c2beaa02 NP |
2832 | /* Make sure we get the Protocol class linked in - reference |
2833 | it... */ | |
d764a8e6 | 2834 | p = objc_v2_get_class_reference (get_identifier (PROTOCOL_OBJECT_CLASS_NAME)); |
c2beaa02 NP |
2835 | /* ... but since we don't specifically use the reference... we |
2836 | need to force it. */ | |
d764a8e6 IS |
2837 | DECL_PRESERVE_P (p) = 1; |
2838 | } | |
2839 | } | |
2840 | ||
2841 | static tree | |
2842 | generate_v2_dispatch_table (tree chain, const char *name, tree attr) | |
2843 | { | |
2844 | tree decl, method_list_template, initlist; | |
9771b263 | 2845 | vec<constructor_elt, va_gc> *v = NULL; |
d764a8e6 IS |
2846 | int size, init_val; |
2847 | ||
2848 | if (!chain || !name || !(size = list_length (chain))) | |
2849 | return NULL_TREE; | |
2850 | ||
2851 | method_list_template | |
2852 | = build_v2_method_list_template (objc_method_template, size); | |
2853 | initlist | |
2854 | = build_dispatch_table_initializer (objc_method_template, chain); | |
2855 | ||
2856 | decl = start_var_decl (method_list_template, name); | |
2857 | ||
2858 | init_val = TREE_INT_CST_LOW (TYPE_SIZE_UNIT (objc_method_template)); | |
944fb799 | 2859 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
d764a8e6 | 2860 | build_int_cst (integer_type_node, init_val)); |
944fb799 | 2861 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
d764a8e6 IS |
2862 | build_int_cst (integer_type_node, size)); |
2863 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, initlist); | |
2864 | ||
2865 | OBJCMETA (decl, objc_meta, attr); | |
2866 | finish_var_decl (decl, | |
2867 | objc_build_constructor (TREE_TYPE (decl), v)); | |
2868 | return decl; | |
2869 | } | |
2870 | ||
2871 | /* Init a category. */ | |
2872 | static tree | |
2873 | build_v2_category_initializer (tree type, tree cat_name, tree class_name, | |
2874 | tree inst_methods, tree class_methods, | |
2875 | tree protocol_list, tree property_list, | |
2876 | location_t loc) | |
2877 | { | |
2878 | tree expr, ltyp; | |
9771b263 | 2879 | vec<constructor_elt, va_gc> *v = NULL; |
d764a8e6 IS |
2880 | |
2881 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, cat_name); | |
2882 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, class_name); | |
2883 | ||
2884 | ltyp = objc_method_list_ptr; | |
2885 | if (inst_methods) | |
2886 | expr = convert (ltyp, build_unary_op (loc, ADDR_EXPR, inst_methods, 0)); | |
2887 | else | |
2888 | expr = convert (ltyp, null_pointer_node); | |
2889 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, expr); | |
2890 | ||
2891 | if (class_methods) | |
2892 | expr = convert (ltyp, build_unary_op (loc, ADDR_EXPR, class_methods, 0)); | |
2893 | else | |
2894 | expr = convert (ltyp, null_pointer_node); | |
2895 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, expr); | |
2896 | ||
2897 | /* protocol_list = */ | |
2898 | ltyp = build_pointer_type (objc_v2_protocol_template); | |
2899 | if (protocol_list) | |
2900 | expr = convert (ltyp, build_unary_op (loc, ADDR_EXPR, protocol_list, 0)); | |
2901 | else | |
2902 | expr = convert (ltyp, null_pointer_node); | |
2903 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, expr); | |
2904 | ||
2905 | ltyp = objc_prop_list_ptr; | |
2906 | if (property_list) | |
2907 | expr = convert (ltyp, build_unary_op (loc, ADDR_EXPR, property_list, 0)); | |
2908 | else | |
2909 | expr = convert (ltyp, null_pointer_node); | |
2910 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, expr); | |
2911 | ||
2912 | return objc_build_constructor (type, v); | |
2913 | } | |
2914 | ||
c2beaa02 | 2915 | /* static struct category_t _OBJC_CATEGORY_$_<name> = { ... }; */ |
d764a8e6 IS |
2916 | |
2917 | static void | |
2918 | generate_v2_category (struct imp_entry *impent) | |
2919 | { | |
2920 | tree initlist, cat_name_expr, class_name_expr; | |
2921 | tree protocol_decl, category, props, t; | |
2922 | tree inst_methods = NULL_TREE, class_methods = NULL_TREE; | |
2923 | tree cat = impent->imp_context; | |
2924 | tree cat_decl = impent->class_decl; | |
2925 | location_t loc; | |
2926 | char buf[BUFSIZE]; | |
944fb799 | 2927 | |
d764a8e6 IS |
2928 | loc = DECL_SOURCE_LOCATION (cat_decl); |
2929 | ||
2930 | /* ??? not sure this is really necessary, the following references should | |
944fb799 | 2931 | force appropriate linkage linkage... |
d764a8e6 IS |
2932 | -- but ... ensure a reference to the class... */ |
2933 | t = objc_v2_get_class_reference (CLASS_NAME (cat)); | |
2934 | /* ... which we ignore so force it out.. */ | |
2935 | DECL_PRESERVE_P (t) = 1; | |
2936 | ||
2937 | snprintf (buf, BUFSIZE, "OBJC_CLASS_$_%s", IDENTIFIER_POINTER (CLASS_NAME (cat))); | |
2938 | class_name_expr = create_extern_decl (objc_v2_class_template, buf); | |
2939 | class_name_expr = build_fold_addr_expr (class_name_expr); | |
2940 | ||
2941 | cat_name_expr = add_objc_string (CLASS_SUPER_NAME (cat), class_names); | |
2942 | category = lookup_category (impent->imp_template, CLASS_SUPER_NAME (cat)); | |
2943 | ||
2944 | if (category && CLASS_PROTOCOL_LIST (category)) | |
2945 | { | |
2946 | generate_protocol_references (CLASS_PROTOCOL_LIST (category)); | |
2947 | protocol_decl = generate_v2_protocol_list (category, cat); | |
2948 | } | |
2949 | else | |
2950 | protocol_decl = NULL_TREE; | |
2951 | ||
c2beaa02 | 2952 | /* decl = update_var_decl(impent->class_decl); */ |
d764a8e6 IS |
2953 | |
2954 | props = generate_v2_property_table (NULL_TREE, cat); | |
2955 | ||
2956 | if (CLASS_NST_METHODS (cat)) | |
2957 | { | |
2958 | snprintf (buf, BUFSIZE, "_OBJC_CategoryInstanceMethods_%s_%s", | |
2959 | IDENTIFIER_POINTER (CLASS_NAME (cat)), | |
2960 | IDENTIFIER_POINTER (CLASS_SUPER_NAME (cat))); | |
2961 | inst_methods = generate_v2_dispatch_table (CLASS_NST_METHODS (cat), buf, | |
2962 | meta_cati_meth); | |
2963 | } | |
2964 | ||
2965 | if (CLASS_CLS_METHODS (cat)) | |
2966 | { | |
2967 | snprintf (buf, BUFSIZE, "_OBJC_CategoryClassMethods_%s_%s", | |
2968 | IDENTIFIER_POINTER (CLASS_NAME (cat)), | |
2969 | IDENTIFIER_POINTER (CLASS_SUPER_NAME (cat))); | |
2970 | class_methods = generate_v2_dispatch_table (CLASS_CLS_METHODS (cat), buf, | |
2971 | meta_catc_meth); | |
2972 | } | |
2973 | ||
2974 | initlist = build_v2_category_initializer (TREE_TYPE (cat_decl), | |
2975 | cat_name_expr, class_name_expr, | |
2976 | inst_methods, class_methods, | |
2977 | protocol_decl, props, loc); | |
2978 | ||
2979 | finish_var_decl (cat_decl, initlist); | |
2980 | impent->class_decl = cat_decl; | |
2981 | ||
c2beaa02 | 2982 | /* Add to list of pointers in __category_list section. */ |
d764a8e6 IS |
2983 | objc_v2_add_to_category_list (cat_decl); |
2984 | if (has_load_impl (CLASS_CLS_METHODS (impent->imp_context))) | |
2985 | objc_v2_add_to_nonlazy_category_list (cat_decl); | |
2986 | } | |
2987 | ||
c2beaa02 NP |
2988 | /* This routine declares a variable to hold the offset for ivar |
2989 | FIELD_DECL. Variable name is .objc_ivar.ClassName.IvarName. */ | |
d764a8e6 | 2990 | |
a79683d5 | 2991 | struct GTY(()) ivarref_entry |
c2beaa02 | 2992 | { |
d764a8e6 IS |
2993 | tree decl; |
2994 | tree offset; | |
a79683d5 | 2995 | }; |
d764a8e6 | 2996 | |
9771b263 | 2997 | static GTY (()) vec<ivarref_entry, va_gc> *ivar_offset_refs; |
d764a8e6 IS |
2998 | |
2999 | static tree | |
3000 | ivar_offset_ref (tree class_name, tree field_decl) | |
3001 | { | |
3002 | tree decl, field_decl_id; | |
3003 | ivarref_entry e; | |
3004 | bool global_var; | |
3005 | char buf[512]; | |
3006 | ||
3007 | create_ivar_offset_name (buf, class_name, field_decl); | |
3008 | field_decl_id = get_identifier (buf); | |
3009 | ||
3010 | if (ivar_offset_refs) | |
3011 | { | |
3012 | int count; | |
3013 | ivarref_entry *ref; | |
9771b263 | 3014 | FOR_EACH_VEC_ELT (*ivar_offset_refs, count, ref) |
d764a8e6 IS |
3015 | if (DECL_NAME (ref->decl) == field_decl_id) |
3016 | return ref->decl; | |
3017 | } | |
3018 | else | |
3019 | /* Somewhat arbitrary initial provision. */ | |
9771b263 | 3020 | vec_alloc (ivar_offset_refs, 32); |
d764a8e6 IS |
3021 | |
3022 | /* We come here if we don't find a match or at the start. */ | |
3023 | global_var = (TREE_PUBLIC (field_decl) || TREE_PROTECTED (field_decl)); | |
3024 | if (global_var) | |
3025 | decl = create_global_decl (TREE_TYPE (size_zero_node), buf); | |
3026 | else | |
3027 | decl = create_hidden_decl (TREE_TYPE (size_zero_node), buf); | |
3028 | ||
eb870e5e IS |
3029 | /* Identify so that we can indirect these where the ABI requires. */ |
3030 | OBJCMETA (decl, objc_meta, meta_ivar_ref); | |
d764a8e6 IS |
3031 | |
3032 | e.decl = decl; | |
3033 | e.offset = byte_position (field_decl); | |
9771b263 | 3034 | vec_safe_push (ivar_offset_refs, e); |
d764a8e6 IS |
3035 | return decl; |
3036 | } | |
3037 | ||
c2beaa02 NP |
3038 | /* This routine builds initializer-list needed to initialize 'struct |
3039 | ivar_t list[count] of 'struct ivar_list_t' meta data. TYPE is | |
3040 | 'struct ivar_t' and FIELD_DECL is list of ivars for the target | |
3041 | class. */ | |
d764a8e6 IS |
3042 | |
3043 | static tree | |
3044 | build_v2_ivar_list_initializer (tree class_name, tree type, tree field_decl) | |
3045 | { | |
9771b263 | 3046 | vec<constructor_elt, va_gc> *inits = NULL; |
d764a8e6 | 3047 | |
944fb799 | 3048 | do |
d764a8e6 | 3049 | { |
9771b263 | 3050 | vec<constructor_elt, va_gc> *ivar = NULL; |
d764a8e6 IS |
3051 | int val; |
3052 | tree id; | |
3053 | ||
c2beaa02 | 3054 | /* Unnamed bitfields are ignored. */ |
d764a8e6 IS |
3055 | if (!DECL_NAME (field_decl)) |
3056 | { | |
3057 | field_decl = DECL_CHAIN (field_decl); | |
3058 | continue; | |
3059 | } | |
3060 | ||
c2beaa02 | 3061 | /* Set offset. */ |
d764a8e6 IS |
3062 | CONSTRUCTOR_APPEND_ELT (ivar, NULL_TREE, |
3063 | build_unary_op (input_location, | |
944fb799 MS |
3064 | ADDR_EXPR, |
3065 | ivar_offset_ref (class_name, | |
d764a8e6 IS |
3066 | field_decl), 0)); |
3067 | ||
c2beaa02 | 3068 | /* Set name. */ |
d764a8e6 IS |
3069 | CONSTRUCTOR_APPEND_ELT (ivar, NULL_TREE, |
3070 | add_objc_string (DECL_NAME (field_decl), | |
3071 | meth_var_names)); | |
3072 | ||
c2beaa02 | 3073 | /* Set type. */ |
a8f18c40 | 3074 | id = add_objc_string (encode_field_decl (field_decl), |
d764a8e6 IS |
3075 | meth_var_types); |
3076 | CONSTRUCTOR_APPEND_ELT (ivar, NULL_TREE, id); | |
d764a8e6 | 3077 | |
c2beaa02 | 3078 | /* Set alignment. */ |
d764a8e6 IS |
3079 | val = DECL_ALIGN_UNIT (field_decl); |
3080 | val = exact_log2 (val); | |
944fb799 | 3081 | CONSTRUCTOR_APPEND_ELT (ivar, NULL_TREE, |
d764a8e6 | 3082 | build_int_cst (integer_type_node, val)); |
944fb799 | 3083 | |
c2beaa02 | 3084 | /* Set size. */ |
d764a8e6 | 3085 | val = TREE_INT_CST_LOW (DECL_SIZE_UNIT (field_decl)); |
944fb799 | 3086 | CONSTRUCTOR_APPEND_ELT (ivar, NULL_TREE, |
d764a8e6 IS |
3087 | build_int_cst (integer_type_node, val)); |
3088 | ||
3089 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, | |
3090 | objc_build_constructor (type, ivar)); | |
3091 | ||
3092 | do | |
3093 | field_decl = DECL_CHAIN (field_decl); | |
3094 | while (field_decl && TREE_CODE (field_decl) != FIELD_DECL); | |
3095 | } | |
3096 | while (field_decl); | |
3097 | ||
3098 | return objc_build_constructor (build_array_type (type, 0), inits); | |
3099 | } | |
3100 | ||
3101 | /* | |
c2beaa02 NP |
3102 | struct ivar_list_t |
3103 | { | |
d764a8e6 IS |
3104 | uint32 entsize; |
3105 | uint32 count; | |
3106 | struct iver_t list[count]; | |
3107 | }; | |
3108 | */ | |
3109 | ||
3110 | static tree | |
3111 | build_v2_ivar_list_t_template (tree list_type, int size) | |
3112 | { | |
3113 | tree objc_ivar_list_record; | |
3114 | tree decls, *chain = NULL; | |
3115 | ||
c2beaa02 | 3116 | /* Anonymous. */ |
d764a8e6 IS |
3117 | objc_ivar_list_record = objc_start_struct (NULL_TREE); |
3118 | ||
3119 | /* uint32 entsize; */ | |
3120 | decls = add_field_decl (integer_type_node, "entsize", &chain); | |
3121 | ||
3122 | /* uint32 count; */ | |
3123 | add_field_decl (integer_type_node, "count", &chain); | |
3124 | ||
3125 | /* struct objc_ivar ivar_list[]; */ | |
3126 | add_field_decl (build_sized_array_type (list_type, size), | |
3127 | "list", &chain); | |
3128 | ||
3129 | objc_finish_struct (objc_ivar_list_record, decls); | |
3130 | return objc_ivar_list_record; | |
3131 | } | |
3132 | ||
c2beaa02 NP |
3133 | /* This routine declares a static variable of type 'struct |
3134 | ivar_list_t' and initializes it. chain is the source of the data, | |
3135 | name is the name for the var. attr is the meta-data section tag | |
3136 | attribute. templ is the implementation template for the class. */ | |
d764a8e6 IS |
3137 | |
3138 | static tree | |
3139 | generate_v2_ivars_list (tree chain, const char *name, tree attr, tree templ) | |
3140 | { | |
3141 | tree decl, initlist, ivar_list_template; | |
9771b263 | 3142 | vec<constructor_elt, va_gc> *inits = NULL; |
d764a8e6 | 3143 | int size, ivar_t_size; |
944fb799 | 3144 | |
d764a8e6 IS |
3145 | if (!chain || !name || !(size = ivar_list_length (chain))) |
3146 | return NULL_TREE; | |
3147 | ||
3148 | generating_instance_variables = 1; | |
3149 | ivar_list_template = build_v2_ivar_list_t_template (objc_v2_ivar_template, | |
3150 | size); | |
944fb799 | 3151 | |
d764a8e6 IS |
3152 | initlist = build_v2_ivar_list_initializer (CLASS_NAME (templ), |
3153 | objc_v2_ivar_template, chain); | |
3154 | ivar_t_size = TREE_INT_CST_LOW (TYPE_SIZE_UNIT (objc_v2_ivar_template)); | |
944fb799 | 3155 | |
d764a8e6 | 3156 | decl = start_var_decl (ivar_list_template, name); |
944fb799 | 3157 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, |
d764a8e6 IS |
3158 | build_int_cst (integer_type_node, ivar_t_size)); |
3159 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, | |
3160 | build_int_cst (integer_type_node, size)); | |
3161 | CONSTRUCTOR_APPEND_ELT (inits, NULL_TREE, initlist); | |
3162 | OBJCMETA (decl, objc_meta, attr); | |
3163 | finish_var_decl (decl, objc_build_constructor (TREE_TYPE (decl), inits)); | |
3164 | generating_instance_variables = 0; | |
3165 | return decl; | |
3166 | } | |
3167 | ||
c2beaa02 NP |
3168 | /* Routine to build initializer list to initialize objects of type |
3169 | struct class_t; */ | |
d764a8e6 IS |
3170 | |
3171 | static tree | |
3172 | build_v2_class_t_initializer (tree type, tree isa, tree superclass, | |
3173 | tree ro, tree cache, tree vtable) | |
3174 | { | |
9771b263 | 3175 | vec<constructor_elt, va_gc> *initlist = NULL; |
d764a8e6 IS |
3176 | |
3177 | /* isa */ | |
3178 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, isa); | |
3179 | ||
3180 | /* superclass */ | |
3181 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, superclass); | |
3182 | ||
3183 | /* cache */ | |
3184 | if (cache) | |
3185 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, cache); | |
3186 | else | |
3187 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, null_pointer_node); | |
3188 | ||
3189 | /* vtable */ | |
3190 | if (vtable) | |
3191 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, vtable); | |
3192 | else | |
3193 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, null_pointer_node); | |
3194 | ||
3195 | /* ro */ | |
3196 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, ro); | |
3197 | ||
3198 | return objc_build_constructor (type, initlist); | |
3199 | } | |
3200 | ||
c2beaa02 | 3201 | /* Routine to build object of struct class_ro_t { ... }; */ |
d764a8e6 IS |
3202 | |
3203 | static tree | |
944fb799 | 3204 | build_v2_class_ro_t_initializer (tree type, tree name, |
d764a8e6 | 3205 | unsigned int flags, unsigned int instanceStart, |
944fb799 MS |
3206 | unsigned int instanceSize, |
3207 | tree ivarLayout, | |
3208 | tree baseMethods, tree baseProtocols, | |
d764a8e6 IS |
3209 | tree ivars, tree property_list) |
3210 | { | |
3211 | tree expr, unsigned_char_star, ltyp; | |
3212 | location_t loc; | |
9771b263 | 3213 | vec<constructor_elt, va_gc> *initlist = NULL; |
d764a8e6 IS |
3214 | |
3215 | /* TODO: fish out the real location from somewhere. */ | |
3216 | loc = UNKNOWN_LOCATION; | |
3217 | ||
3218 | /* flags */ | |
944fb799 | 3219 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, |
d764a8e6 IS |
3220 | build_int_cst (integer_type_node, flags)); |
3221 | ||
3222 | /* instanceStart */ | |
944fb799 | 3223 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, |
d764a8e6 IS |
3224 | build_int_cst (integer_type_node, instanceStart)); |
3225 | ||
3226 | /* instanceSize */ | |
944fb799 | 3227 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, |
d764a8e6 IS |
3228 | build_int_cst (integer_type_node, instanceSize)); |
3229 | ||
c2beaa02 NP |
3230 | /* This ABI is currently only used on m64 NeXT. We always |
3231 | explicitly declare the alignment padding. */ | |
3232 | /* reserved, pads alignment. */ | |
944fb799 | 3233 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, |
d764a8e6 IS |
3234 | build_int_cst (integer_type_node, 0)); |
3235 | ||
3236 | /* ivarLayout */ | |
3237 | unsigned_char_star = build_pointer_type (unsigned_char_type_node); | |
3238 | if (ivarLayout) | |
3239 | expr = ivarLayout; | |
3240 | else | |
3241 | expr = convert (unsigned_char_star, null_pointer_node); | |
3242 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, expr); | |
3243 | ||
3244 | /* name */ | |
3245 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, default_conversion (name)); | |
3246 | ||
3247 | /* baseMethods */ | |
3248 | ltyp = objc_method_list_ptr; | |
3249 | if (baseMethods) | |
3250 | expr = convert (ltyp, build_unary_op (loc, ADDR_EXPR, baseMethods, 0)); | |
3251 | else | |
3252 | expr = convert (ltyp, null_pointer_node); | |
3253 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, expr); | |
3254 | ||
3255 | /* baseProtocols */ | |
944fb799 | 3256 | ltyp = build_pointer_type (xref_tag (RECORD_TYPE, |
d764a8e6 IS |
3257 | get_identifier (UTAG_V2_PROTOCOL_LIST))); |
3258 | if (baseProtocols) | |
3259 | expr = convert (ltyp, build_unary_op (loc, ADDR_EXPR, baseProtocols, 0)); | |
3260 | else | |
3261 | expr = convert (ltyp, null_pointer_node); | |
3262 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, expr); | |
3263 | ||
3264 | /* ivars */ | |
3265 | ltyp = objc_v2_ivar_list_ptr; | |
3266 | if (ivars) | |
3267 | expr = convert (ltyp, build_unary_op (loc, ADDR_EXPR, ivars, 0)); | |
3268 | else | |
3269 | expr = convert (ltyp, null_pointer_node); | |
3270 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, expr); | |
3271 | ||
3272 | /* TODO: We don't yet have the weak/strong stuff... */ | |
3273 | /* weakIvarLayout */ | |
944fb799 | 3274 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, |
d764a8e6 IS |
3275 | convert (unsigned_char_star, null_pointer_node)); |
3276 | ||
3277 | /* property list */ | |
3278 | ltyp = objc_prop_list_ptr; | |
3279 | if (property_list) | |
3280 | expr = convert (ltyp, build_unary_op (loc, ADDR_EXPR, property_list, 0)); | |
3281 | else | |
3282 | expr = convert (ltyp, null_pointer_node); | |
3283 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, expr); | |
3284 | return objc_build_constructor (type, initlist); | |
3285 | } | |
3286 | ||
9771b263 | 3287 | static GTY (()) vec<ident_data_tuple, va_gc> *ehtype_list; |
d764a8e6 IS |
3288 | |
3289 | /* Record a name as needing a catcher. */ | |
3290 | static void | |
3291 | objc_v2_add_to_ehtype_list (tree name) | |
3292 | { | |
3293 | ident_data_tuple e; | |
3294 | if (ehtype_list) | |
3295 | { | |
3296 | int count = 0; | |
3297 | ident_data_tuple *ref; | |
3298 | ||
9771b263 | 3299 | FOR_EACH_VEC_ELT (*ehtype_list, count, ref) |
d764a8e6 IS |
3300 | if (ref->ident == name) |
3301 | return; /* Already entered. */ | |
3302 | } | |
3303 | else | |
3304 | /* Arbitrary initial count. */ | |
9771b263 | 3305 | vec_alloc (ehtype_list, 8); |
c2beaa02 | 3306 | |
d764a8e6 IS |
3307 | /* Not found, or new list. */ |
3308 | e.ident = name; | |
3309 | e.data = NULL_TREE; | |
9771b263 | 3310 | vec_safe_push (ehtype_list, e); |
d764a8e6 IS |
3311 | } |
3312 | ||
3313 | static void | |
3314 | generate_v2_class_structs (struct imp_entry *impent) | |
3315 | { | |
3316 | tree decl, name_expr, initlist, protocol_decl, metaclass_decl, class_decl; | |
3317 | tree field, firstIvar, chain; | |
3318 | tree class_superclass_expr, metaclass_superclass_expr, props; | |
3319 | /* TODO: figure out how to compute this. */ | |
3320 | tree ivarLayout = NULL_TREE; | |
3321 | tree my_super_id = NULL_TREE, root_expr = NULL_TREE; | |
3322 | tree inst_methods = NULL_TREE, class_methods = NULL_TREE; | |
3323 | tree inst_ivars = NULL_TREE, class_ivars = NULL_TREE; | |
3324 | location_t loc; | |
3325 | char buf[BUFSIZE]; | |
3326 | unsigned int instanceStart, instanceSize; | |
3327 | unsigned int flags = 0x01; /* RO_META */ | |
3328 | int cls_flags = impent->has_cxx_cdtors ? OBJC2_CLS_HAS_CXX_STRUCTORS | |
3329 | : 0 ; | |
3330 | ||
3331 | class_decl = impent->class_decl; | |
3332 | metaclass_decl = impent->meta_decl; | |
3333 | loc = DECL_SOURCE_LOCATION (class_decl); | |
3334 | ||
3335 | DECL_EXTERNAL (class_decl) = DECL_EXTERNAL (metaclass_decl) = 0; | |
3336 | TREE_PUBLIC (class_decl) = TREE_PUBLIC (metaclass_decl) = 1; | |
3337 | #ifdef OBJCPLUS | |
3338 | gcc_assert (!CP_DECL_CONTEXT (class_decl) || CP_DECL_CONTEXT (class_decl) == global_namespace); | |
3339 | gcc_assert (!CP_DECL_CONTEXT (metaclass_decl) || CP_DECL_CONTEXT (metaclass_decl) == global_namespace); | |
3340 | #endif | |
3341 | ||
c2beaa02 | 3342 | /* Generation of data for meta class. */ |
d764a8e6 IS |
3343 | my_super_id = CLASS_SUPER_NAME (impent->imp_template); |
3344 | if (my_super_id) | |
3345 | { | |
c2beaa02 NP |
3346 | /* Compute reference to root's name. For a meta class, "isa" is |
3347 | a reference to the root class name. */ | |
d764a8e6 IS |
3348 | tree my_root_id = my_super_id; |
3349 | tree my_root_int, interface; | |
3350 | do | |
3351 | { | |
3352 | my_root_int = lookup_interface (my_root_id); | |
3353 | ||
3354 | if (my_root_int && CLASS_SUPER_NAME (my_root_int)) | |
3355 | my_root_id = CLASS_SUPER_NAME (my_root_int); | |
3356 | else | |
3357 | break; | |
3358 | } | |
3359 | while (1); | |
3360 | ||
944fb799 | 3361 | /* {extern} struct class_t OBJC_METACLASS_$_<my_root_int> |
d764a8e6 | 3362 | create extern if not already declared. */ |
944fb799 | 3363 | snprintf (buf, BUFSIZE, "OBJC_METACLASS_$_%s", |
d764a8e6 IS |
3364 | IDENTIFIER_POINTER (CLASS_NAME (my_root_int))); |
3365 | root_expr = create_extern_decl (objc_v2_class_template, buf); | |
3366 | root_expr = build_fold_addr_expr (root_expr); | |
3367 | ||
3368 | /* Install class `isa' and `super' pointers at runtime. */ | |
3369 | interface = lookup_interface (my_super_id); | |
3370 | gcc_assert (interface); | |
c2beaa02 | 3371 | /* Similarly, for OBJC_CLASS_$_<interface>... */ |
944fb799 | 3372 | snprintf (buf, BUFSIZE, "OBJC_CLASS_$_%s", |
d764a8e6 IS |
3373 | IDENTIFIER_POINTER (CLASS_NAME (interface))); |
3374 | class_superclass_expr = create_extern_decl (objc_v2_class_template, buf); | |
3375 | class_superclass_expr = build_fold_addr_expr (class_superclass_expr); | |
c2beaa02 | 3376 | /* ... and for OBJC_METACLASS_$_<interface>. */ |
944fb799 | 3377 | snprintf (buf, BUFSIZE, "OBJC_METACLASS_$_%s", |
d764a8e6 IS |
3378 | IDENTIFIER_POINTER (CLASS_NAME (interface))); |
3379 | metaclass_superclass_expr = create_extern_decl (objc_v2_class_template, buf); | |
3380 | metaclass_superclass_expr = build_fold_addr_expr (metaclass_superclass_expr); | |
3381 | } | |
3382 | else | |
3383 | { | |
c2beaa02 | 3384 | /* Root class. */ |
d764a8e6 IS |
3385 | root_expr = build_unary_op (loc, ADDR_EXPR, metaclass_decl, 0); |
3386 | metaclass_superclass_expr = build_unary_op (loc, ADDR_EXPR, class_decl, 0); | |
3387 | class_superclass_expr = build_int_cst (NULL_TREE, 0); | |
c2beaa02 | 3388 | flags |= 0x02; /* RO_ROOT: it is also a root meta class. */ |
d764a8e6 IS |
3389 | } |
3390 | ||
3391 | if (CLASS_PROTOCOL_LIST (impent->imp_template)) | |
3392 | { | |
3393 | generate_protocol_references (CLASS_PROTOCOL_LIST (impent->imp_template)); | |
3394 | protocol_decl = generate_v2_protocol_list (impent->imp_template, | |
3395 | impent->imp_context); | |
3396 | } | |
3397 | else | |
3398 | protocol_decl = 0; | |
3399 | ||
3400 | name_expr = add_objc_string (CLASS_NAME (impent->imp_template), | |
3401 | class_names); | |
3402 | ||
3403 | if (CLASS_CLS_METHODS (impent->imp_context)) | |
3404 | { | |
3405 | snprintf (buf, BUFSIZE, "_OBJC_ClassMethods_%s", | |
3406 | IDENTIFIER_POINTER (CLASS_NAME (impent->imp_context))); | |
944fb799 | 3407 | class_methods = |
d764a8e6 IS |
3408 | generate_v2_dispatch_table (CLASS_CLS_METHODS (impent->imp_context), |
3409 | buf, meta_clac_meth); | |
3410 | } | |
3411 | ||
3412 | instanceStart = TREE_INT_CST_LOW (TYPE_SIZE_UNIT (objc_v2_class_template)); | |
3413 | ||
c2beaa02 NP |
3414 | /* Currently there are no class ivars and generation of class |
3415 | variables for the root of the inheritance has been removed. It | |
3416 | causes multiple defines if there are two root classes in the | |
3417 | link, because each will define its own identically-named offset | |
3418 | variable. */ | |
d764a8e6 IS |
3419 | |
3420 | class_ivars = NULL_TREE; | |
3421 | /* TODO: Add total size of class variables when implemented. */ | |
944fb799 | 3422 | instanceSize = TREE_INT_CST_LOW (TYPE_SIZE_UNIT (objc_v2_class_template)); |
d764a8e6 IS |
3423 | |
3424 | /* So now build the META CLASS structs. */ | |
3425 | /* static struct class_ro_t _OBJC_METACLASS_Foo = { ... }; */ | |
3426 | ||
3427 | decl = start_var_decl (objc_v2_class_ro_template, | |
3428 | newabi_append_ro (IDENTIFIER_POINTER | |
3429 | (DECL_NAME (metaclass_decl)))); | |
3430 | ||
c2beaa02 | 3431 | /* TODO: ivarLayout needs t be built. */ |
944fb799 | 3432 | initlist = |
d764a8e6 IS |
3433 | build_v2_class_ro_t_initializer (TREE_TYPE (decl), name_expr, |
3434 | (flags | cls_flags), instanceStart, | |
944fb799 | 3435 | instanceSize, ivarLayout, |
d764a8e6 IS |
3436 | class_methods, protocol_decl, |
3437 | class_ivars, NULL_TREE); | |
3438 | /* The ROs sit in the default const section. */ | |
3439 | OBJCMETA (decl, objc_meta, meta_base); | |
3440 | finish_var_decl (decl, initlist); | |
3441 | ||
3442 | /* static struct class_t _OBJC_METACLASS_Foo = { ... }; */ | |
944fb799 | 3443 | initlist = |
d764a8e6 IS |
3444 | build_v2_class_t_initializer (TREE_TYPE (metaclass_decl), |
3445 | root_expr, | |
3446 | metaclass_superclass_expr, | |
3447 | build_fold_addr_expr (decl), | |
944fb799 | 3448 | build_fold_addr_expr (UOBJC_V2_CACHE_decl), |
d764a8e6 IS |
3449 | build_fold_addr_expr (UOBJC_V2_VTABLE_decl)); |
3450 | /* The class section attributes are set when they are created. */ | |
3451 | finish_var_decl (metaclass_decl, initlist); | |
3452 | impent->meta_decl = metaclass_decl; | |
3453 | ||
3454 | /* So now build the CLASS structs. */ | |
3455 | ||
3456 | flags = 0x0; /* ... */ | |
3457 | if (!my_super_id) | |
3458 | flags |= 0x02; /* RO_ROOT: this is a root class */ | |
3459 | ||
3460 | if (DECL_VISIBILITY (class_decl) == VISIBILITY_HIDDEN) | |
3461 | flags |= 0x10; /* RO_HIDDEN, OBJC2_CLS_HIDDEN; */ | |
3462 | ||
3463 | if (objc2_objc_exception_attr (impent->imp_template)) | |
3464 | flags |= 0x20; /* RO_EXCEPTION */ | |
3465 | ||
3466 | if (CLASS_NST_METHODS (impent->imp_context)) | |
3467 | { | |
3468 | snprintf (buf, BUFSIZE, "_OBJC_InstanceMethods_%s", | |
3469 | IDENTIFIER_POINTER (CLASS_NAME (impent->imp_context))); | |
944fb799 | 3470 | inst_methods = |
d764a8e6 IS |
3471 | generate_v2_dispatch_table (CLASS_NST_METHODS (impent->imp_context), |
3472 | buf, meta_clai_meth); | |
3473 | } | |
3474 | ||
3475 | /* Sort out the ivars before we try to compute the class sizes. */ | |
3476 | if ((chain = CLASS_IVARS (impent->imp_template))) | |
3477 | { | |
3478 | snprintf (buf, BUFSIZE, "_OBJC_InstanceIvars_%s", | |
3479 | IDENTIFIER_POINTER (CLASS_NAME (impent->imp_context))); | |
944fb799 | 3480 | inst_ivars = generate_v2_ivars_list (chain, buf, meta_clai_vars, |
d764a8e6 IS |
3481 | impent->imp_template); |
3482 | } | |
3483 | ||
c2beaa02 | 3484 | /* Compute instanceStart. */ |
d764a8e6 IS |
3485 | gcc_assert (CLASS_STATIC_TEMPLATE (impent->imp_template)); |
3486 | field = TYPE_FIELDS (CLASS_STATIC_TEMPLATE (impent->imp_template)); | |
3487 | if (my_super_id && field && TREE_CHAIN (field)) | |
3488 | field = TREE_CHAIN (field); | |
3489 | ||
3490 | firstIvar = field; | |
3491 | ||
3492 | while (firstIvar && TREE_CODE (firstIvar) != FIELD_DECL) | |
3493 | firstIvar = TREE_CHAIN (firstIvar); | |
3494 | ||
3495 | gcc_assert (inst_ivars? (firstIvar != NULL_TREE): true); | |
3496 | ||
c2beaa02 | 3497 | /* Compute instanceSize. */ |
d764a8e6 IS |
3498 | while (field && TREE_CHAIN (field) |
3499 | && TREE_CODE (TREE_CHAIN (field)) == FIELD_DECL) | |
3500 | field = TREE_CHAIN (field); | |
944fb799 | 3501 | |
d764a8e6 | 3502 | if (field && TREE_CODE (field) == FIELD_DECL) |
944fb799 | 3503 | instanceSize = int_byte_position (field) * BITS_PER_UNIT |
9439e9a1 | 3504 | + tree_to_shwi (DECL_SIZE (field)); |
d764a8e6 IS |
3505 | else |
3506 | instanceSize = 0; | |
3507 | instanceSize /= BITS_PER_UNIT; | |
3508 | ||
3509 | props = generate_v2_property_table (NULL_TREE, impent->imp_context); | |
3510 | ||
c2beaa02 NP |
3511 | /* If the class has no ivars, instanceStart should be set to the |
3512 | superclass's instanceSize. */ | |
944fb799 MS |
3513 | instanceStart = |
3514 | (inst_ivars != NULL_TREE) ? (unsigned) int_byte_position (firstIvar) | |
d764a8e6 IS |
3515 | : instanceSize; |
3516 | ||
3517 | /* static struct class_ro_t _OBJC_CLASS_Foo = { ... }; */ | |
944fb799 | 3518 | decl = start_var_decl (objc_v2_class_ro_template, |
d764a8e6 | 3519 | newabi_append_ro (IDENTIFIER_POINTER |
944fb799 | 3520 | (DECL_NAME (class_decl)))); |
d764a8e6 | 3521 | |
944fb799 | 3522 | initlist = |
d764a8e6 IS |
3523 | build_v2_class_ro_t_initializer (TREE_TYPE (decl), name_expr, |
3524 | (flags | cls_flags), instanceStart, | |
944fb799 | 3525 | instanceSize, ivarLayout, |
d764a8e6 IS |
3526 | inst_methods, protocol_decl, |
3527 | inst_ivars, props); | |
3528 | /* The ROs sit in the default const section. */ | |
3529 | OBJCMETA (decl, objc_meta, meta_base); | |
3530 | finish_var_decl (decl, initlist); | |
3531 | ||
3532 | /* static struct class_t _OBJC_CLASS_Foo = { ... }; */ | |
3533 | initlist = build_v2_class_t_initializer (TREE_TYPE (class_decl), | |
3534 | build_fold_addr_expr (metaclass_decl), | |
3535 | class_superclass_expr, | |
3536 | build_fold_addr_expr (decl), | |
944fb799 MS |
3537 | build_fold_addr_expr (UOBJC_V2_CACHE_decl), |
3538 | build_fold_addr_expr (UOBJC_V2_VTABLE_decl)); | |
d764a8e6 IS |
3539 | |
3540 | /* The class section attributes are set when they are created. */ | |
3541 | finish_var_decl (class_decl, initlist); | |
3542 | impent->class_decl = class_decl; | |
3543 | ||
3544 | objc_v2_add_to_class_list (class_decl); | |
3545 | if (has_load_impl (CLASS_CLS_METHODS (impent->imp_context))) | |
3546 | objc_v2_add_to_nonlazy_class_list (class_decl); | |
3547 | ||
3548 | if (flags & 0x20) /* RO_EXCEPTION */ | |
3549 | objc_v2_add_to_ehtype_list (CLASS_NAME (impent->imp_template)); | |
3550 | } | |
3551 | ||
c2beaa02 NP |
3552 | /* This routine outputs the (ivar_reference_offset, offset) |
3553 | tuples. */ | |
d764a8e6 IS |
3554 | |
3555 | static void | |
3556 | build_v2_ivar_offset_ref_table (void) | |
3557 | { | |
3558 | int count; | |
3559 | ivarref_entry *ref; | |
3560 | ||
9771b263 | 3561 | if (!vec_safe_length (ivar_offset_refs)) |
d764a8e6 IS |
3562 | return; |
3563 | ||
9771b263 | 3564 | FOR_EACH_VEC_ELT (*ivar_offset_refs, count, ref) |
d764a8e6 IS |
3565 | finish_var_decl (ref->decl, ref->offset); |
3566 | } | |
3567 | ||
d764a8e6 IS |
3568 | static void |
3569 | objc_generate_v2_next_metadata (void) | |
3570 | { | |
3571 | struct imp_entry *impent; | |
3572 | ||
c2beaa02 NP |
3573 | /* FIXME: Make sure that we generate no metadata if there is nothing |
3574 | to put into it. */ | |
3575 | ||
d764a8e6 IS |
3576 | gcc_assert (!objc_static_instances); /* Not for NeXT */ |
3577 | ||
3578 | build_metadata_templates (); | |
3579 | ||
3580 | for (impent = imp_list; impent; impent = impent->next) | |
3581 | { | |
3582 | /* If -gen-decls is present, Dump the @interface of each class. | |
c2beaa02 NP |
3583 | TODO: Dump the classes in the order they were found, rather |
3584 | than in reverse order as we are doing now. */ | |
d764a8e6 IS |
3585 | if (flag_gen_declaration) |
3586 | dump_interface (gen_declaration_file, impent->imp_context); | |
3587 | ||
3588 | /* all of the following reference the string pool... */ | |
3589 | if (TREE_CODE (impent->imp_context) == CLASS_IMPLEMENTATION_TYPE) | |
3590 | generate_v2_class_structs (impent); | |
3591 | else | |
3592 | generate_v2_category (impent); | |
3593 | } | |
3594 | ||
3595 | build_next_selector_translation_table (); | |
3596 | build_v2_message_ref_translation_table (); | |
3597 | ||
3598 | /* This will add "Protocol" to the class refs. */ | |
3599 | generate_v2_protocols (); | |
3600 | ||
3601 | build_v2_classrefs_table (); | |
3602 | build_v2_super_classrefs_table (/*metaclass= */false); | |
3603 | build_v2_super_classrefs_table (/*metaclass= */true); | |
3604 | ||
3605 | build_v2_ivar_offset_ref_table (); | |
3606 | ||
3607 | build_v2_protocol_list_translation_table (); | |
3608 | build_v2_protocol_list_address_table (); | |
3609 | ||
944fb799 | 3610 | build_v2_address_table (class_list, "_OBJC_ClassList$", |
d764a8e6 | 3611 | meta_label_classlist); |
944fb799 | 3612 | build_v2_address_table (category_list, "_OBJC_CategoryList$", |
d764a8e6 | 3613 | meta_label_categorylist); |
944fb799 | 3614 | build_v2_address_table (nonlazy_class_list, "_OBJC_NonLazyClassList$", |
d764a8e6 | 3615 | meta_label_nonlazy_classlist); |
944fb799 | 3616 | build_v2_address_table (nonlazy_category_list, "_OBJC_NonLazyCategoryList$", |
d764a8e6 IS |
3617 | meta_label_nonlazy_categorylist); |
3618 | ||
d764a8e6 IS |
3619 | /* Generate catch objects for eh, if any are needed. */ |
3620 | build_v2_eh_catch_objects (); | |
3621 | ||
3622 | /* Emit the string table last. */ | |
3623 | generate_strings (); | |
3624 | } | |
3625 | ||
3626 | /* NOTE --- Output NeXT V2 Exceptions --- */ | |
3627 | ||
3628 | static GTY(()) tree objc_v2_ehtype_template; | |
3629 | static GTY(()) tree next_v2_ehvtable_decl; | |
3630 | static GTY(()) tree next_v2_EHTYPE_id_decl; | |
3631 | ||
3632 | static void | |
3633 | build_v2_ehtype_template (void) | |
3634 | { | |
3635 | tree decls, *chain = NULL; | |
3636 | objc_v2_ehtype_template = objc_start_struct (get_identifier (UTAG_V2_EH_TYPE)); | |
3637 | ||
3638 | /* void *_objc_ehtype_vtable; */ | |
3639 | decls = add_field_decl (ptr_type_node, "_objc_ehtype_vtable_ptr", &chain); | |
3640 | ||
3641 | /* const char *className; */ | |
3642 | add_field_decl (string_type_node, "className", &chain); | |
3643 | ||
3644 | /* struct class_t *const cls; */ | |
3645 | add_field_decl (build_pointer_type (objc_v2_class_template), "cls", &chain); | |
3646 | ||
3647 | objc_finish_struct (objc_v2_ehtype_template, decls); | |
3648 | } | |
3649 | ||
c2beaa02 NP |
3650 | /* Template for the Objective-C family typeinfo type for ABI=2. This |
3651 | starts off the same as the gxx/cxx eh typeinfo. | |
d764a8e6 | 3652 | |
c2beaa02 NP |
3653 | struct _objc_ehtype_t |
3654 | { | |
d764a8e6 IS |
3655 | void *_objc_ehtype_vtable_ptr; - as per c++ |
3656 | const char *className; - as per c++ | |
3657 | struct class_t *const cls; | |
3658 | } | |
3659 | */ | |
3660 | ||
3661 | /* This routine builds initializer list for object of type struct _objc_ehtype_t. | |
3662 | */ | |
3663 | ||
3664 | static tree | |
3665 | objc2_build_ehtype_initializer (tree name, tree cls) | |
3666 | { | |
9771b263 | 3667 | vec<constructor_elt, va_gc> *initlist = NULL; |
d764a8e6 IS |
3668 | tree addr, offs; |
3669 | ||
c2beaa02 NP |
3670 | /* This is done the same way as c++, missing the two first entries |
3671 | in the parent vtable. NOTE: there is a fix-me in the Apple/NeXT | |
3672 | runtime source about this so, perhaps, this will change at some | |
3673 | point. */ | |
d764a8e6 IS |
3674 | /* _objc_ehtype_vtable + 2*sizeof(void*) */ |
3675 | if (!next_v2_ehvtable_decl) | |
3676 | { | |
3677 | next_v2_ehvtable_decl = | |
3678 | start_var_decl (ptr_type_node, TAG_NEXT_EHVTABLE_NAME); | |
3679 | TREE_STATIC (next_v2_ehvtable_decl) = 0; | |
3680 | DECL_EXTERNAL (next_v2_ehvtable_decl) = 1; | |
3681 | TREE_PUBLIC (next_v2_ehvtable_decl) = 1; | |
3682 | } | |
3683 | addr = build_fold_addr_expr_with_type (next_v2_ehvtable_decl, ptr_type_node); | |
3684 | offs = size_int (2 * int_cst_value (TYPE_SIZE_UNIT (ptr_type_node))); | |
5d49b6a7 | 3685 | addr = fold_build_pointer_plus (addr, offs); |
d764a8e6 IS |
3686 | |
3687 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, addr); | |
3688 | ||
3689 | /* className */ | |
3690 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, name); | |
3691 | ||
3692 | /* cls */ | |
3693 | CONSTRUCTOR_APPEND_ELT (initlist, NULL_TREE, cls); | |
3694 | ||
3695 | return objc_build_constructor (objc_v2_ehtype_template, initlist); | |
3696 | } | |
3697 | ||
3698 | static tree | |
3699 | build_ehtype (tree name, const char *eh_name, bool weak) | |
3700 | { | |
3701 | tree name_expr, class_name_expr, ehtype_decl, inits; | |
3702 | ||
3703 | name_expr = add_objc_string (name, class_names); | |
c2beaa02 NP |
3704 | /* Extern ref. for the class. ??? Maybe we can look this up |
3705 | somewhere. */ | |
944fb799 | 3706 | class_name_expr = |
d764a8e6 IS |
3707 | create_extern_decl (objc_v2_class_template, |
3708 | objc_build_internal_classname (name, false)); | |
3709 | class_name_expr = build_fold_addr_expr (class_name_expr); | |
3710 | ehtype_decl = create_global_decl (objc_v2_ehtype_template, eh_name); | |
3711 | if (weak) | |
3712 | DECL_WEAK (ehtype_decl) = 1; | |
3713 | inits = objc2_build_ehtype_initializer (name_expr, class_name_expr); | |
3714 | OBJCMETA (ehtype_decl, objc_meta, meta_ehtype); | |
3715 | finish_var_decl (ehtype_decl, inits); | |
3716 | return ehtype_decl; | |
3717 | } | |
3718 | ||
3719 | /* This routine returns TRUE if CLS or any of its super classes has | |
c2beaa02 | 3720 | __attribute__ ((objc_exception)). */ |
d764a8e6 IS |
3721 | |
3722 | static bool | |
3723 | objc2_objc_exception_attr (tree cls) | |
3724 | { | |
3725 | while (cls) | |
3726 | { | |
3727 | if (CLASS_HAS_EXCEPTION_ATTR (cls)) | |
3728 | return true; | |
3729 | cls = lookup_interface (CLASS_SUPER_NAME (cls)); | |
3730 | } | |
3731 | ||
944fb799 | 3732 | return false; |
d764a8e6 IS |
3733 | } |
3734 | ||
944fb799 | 3735 | static bool |
d764a8e6 IS |
3736 | is_implemented (tree name) |
3737 | { | |
3738 | struct imp_entry *t; | |
3739 | for (t = imp_list; t; t = t->next) | |
3740 | if (TREE_CODE (t->imp_context) == CLASS_IMPLEMENTATION_TYPE | |
3741 | && CLASS_NAME (t->imp_template) == name) | |
3742 | return true; | |
3743 | ||
3744 | return false; | |
3745 | } | |
3746 | ||
3747 | /* We will build catch objects: | |
3748 | for any type implemented here. | |
3749 | for any type used in a catch that has no exception attribute. */ | |
3750 | static void build_v2_eh_catch_objects (void) | |
3751 | { | |
3752 | int count=0; | |
3753 | ident_data_tuple *ref; | |
3754 | ||
9771b263 | 3755 | if (!vec_safe_length (ehtype_list)) |
d764a8e6 IS |
3756 | return; |
3757 | ||
9771b263 | 3758 | FOR_EACH_VEC_ELT (*ehtype_list, count, ref) |
d764a8e6 IS |
3759 | { |
3760 | char buf[BUFSIZE]; | |
3761 | bool impl = is_implemented (ref->ident); | |
3762 | bool excpt = objc2_objc_exception_attr (lookup_interface (ref->ident)); | |
3763 | snprintf (buf, BUFSIZE, "OBJC_EHTYPE_$_%s", IDENTIFIER_POINTER (ref->ident)); | |
3764 | if (!impl && excpt) | |
3765 | /* The User says this class has a catcher already. */ | |
3766 | ref->data = create_extern_decl (objc_v2_ehtype_template, buf); | |
3767 | else | |
3768 | /* Create a catcher, weak if it wasn't marked. */ | |
3769 | ref->data = build_ehtype (ref->ident, buf, !excpt); | |
3770 | } | |
3771 | } | |
3772 | ||
3773 | static tree | |
3774 | lookup_ehtype_ref (tree id) | |
3775 | { | |
3776 | int count=0; | |
3777 | ident_data_tuple *ref; | |
3778 | ||
9771b263 | 3779 | if (!vec_safe_length (ehtype_list)) |
d764a8e6 IS |
3780 | return NULL_TREE; |
3781 | ||
9771b263 | 3782 | FOR_EACH_VEC_ELT (*ehtype_list, count, ref) |
d764a8e6 IS |
3783 | if (ref->ident == id) |
3784 | return ref->data; | |
3785 | return NULL_TREE; | |
3786 | } | |
3787 | ||
c2beaa02 NP |
3788 | /* This hook, called via lang_eh_runtime_type, generates a runtime |
3789 | object which is either the address of the 'OBJC_EHTYPE_$_class' | |
3790 | object or address of external OBJC_EHTYPE_id object. */ | |
d764a8e6 IS |
3791 | static tree |
3792 | next_runtime_02_eh_type (tree type) | |
3793 | { | |
3794 | tree t; | |
3795 | ||
3796 | if (type == error_mark_node | |
3797 | /*|| errorcount || sorrycount*/) | |
3798 | goto err_mark_in; | |
3799 | ||
3800 | if (POINTER_TYPE_P (type) && objc_is_object_id (TREE_TYPE (type))) | |
3801 | { | |
3802 | if (!next_v2_EHTYPE_id_decl) | |
3803 | { | |
c2beaa02 NP |
3804 | /* This is provided by the Apple/NeXT libobjc.dylib so we |
3805 | need only to reference it. */ | |
944fb799 | 3806 | next_v2_EHTYPE_id_decl = |
d764a8e6 IS |
3807 | start_var_decl (objc_v2_ehtype_template, "OBJC_EHTYPE_id"); |
3808 | DECL_EXTERNAL (next_v2_EHTYPE_id_decl) = 1; | |
3809 | TREE_PUBLIC (next_v2_EHTYPE_id_decl) = 1; | |
3810 | TREE_STATIC (next_v2_EHTYPE_id_decl) = 0; | |
3811 | } | |
3812 | return build_fold_addr_expr (next_v2_EHTYPE_id_decl); | |
3813 | } | |
3814 | ||
3815 | if (!POINTER_TYPE_P (type) || !TYPED_OBJECT (TREE_TYPE (type))) | |
3816 | { | |
3817 | #ifdef OBJCPLUS | |
c2beaa02 NP |
3818 | /* This routine is also called for c++'s catch clause; in which |
3819 | case, we use c++'s typeinfo decl. */ | |
d764a8e6 IS |
3820 | return build_eh_type_type (type); |
3821 | #else | |
0f2c4a8f | 3822 | error ("non-objective-c type %qT cannot be caught", type); |
d764a8e6 IS |
3823 | goto err_mark_in; |
3824 | #endif | |
3825 | } | |
944fb799 | 3826 | else |
d764a8e6 | 3827 | t = OBJC_TYPE_NAME (TREE_TYPE (type)); |
944fb799 | 3828 | |
c2beaa02 | 3829 | /* We have to build a reference to the OBJC_EHTYPE_<Class>. */ |
d764a8e6 IS |
3830 | t = lookup_ehtype_ref (t); |
3831 | if (!t) | |
3832 | goto err_mark_in; | |
3833 | ||
3834 | return build_fold_addr_expr (t); | |
3835 | ||
3836 | err_mark_in: | |
3837 | return error_mark_node; | |
3838 | } | |
3839 | ||
3840 | static GTY(()) tree objc_eh_personality_decl; | |
3841 | ||
3842 | static tree | |
3843 | objc_eh_personality (void) | |
3844 | { | |
3845 | if (!objc_eh_personality_decl) | |
3846 | objc_eh_personality_decl = build_personality_function ("objc"); | |
3847 | return objc_eh_personality_decl; | |
3848 | } | |
3849 | ||
3850 | /* NOTE --- interfaces --- */ | |
3851 | ||
3852 | static tree | |
3853 | build_throw_stmt (location_t loc, tree throw_expr, bool rethrown) | |
3854 | { | |
3855 | tree t; | |
3856 | if (rethrown) | |
3857 | /* We have a separate re-throw entry. */ | |
81e5eca8 MP |
3858 | t = build_function_call_vec (loc, vNULL, objc_rethrow_exception_decl, |
3859 | NULL, NULL); | |
d764a8e6 IS |
3860 | else |
3861 | { | |
c2beaa02 | 3862 | /* Throw like the others... */ |
9771b263 DN |
3863 | vec<tree, va_gc> *parms; |
3864 | vec_alloc (parms, 1); | |
3865 | parms->quick_push (throw_expr); | |
81e5eca8 MP |
3866 | t = build_function_call_vec (loc, vNULL, objc_exception_throw_decl, |
3867 | parms, 0); | |
9771b263 | 3868 | vec_free (parms); |
d764a8e6 IS |
3869 | } |
3870 | return add_stmt (t); | |
3871 | } | |
3872 | ||
3873 | /* Build __builtin_eh_pointer. */ | |
3874 | ||
3875 | static tree | |
3876 | objc_build_exc_ptr (struct objc_try_context **x ATTRIBUTE_UNUSED) | |
3877 | { | |
3878 | tree t; | |
e79983f4 | 3879 | t = builtin_decl_explicit (BUILT_IN_EH_POINTER); |
d764a8e6 IS |
3880 | t = build_call_expr (t, 1, integer_zero_node); |
3881 | return fold_convert (objc_object_type, t); | |
3882 | } | |
3883 | ||
3884 | static tree begin_catch (struct objc_try_context **cur_try_context, tree type, | |
3885 | tree decl, tree compound, bool ellipsis ATTRIBUTE_UNUSED) | |
3886 | { | |
3887 | tree t; | |
3888 | ||
3889 | /* Record the data for the catch in the try context so that we can | |
3890 | finalize it later. Ellipsis is signalled by a NULL entry. */ | |
3891 | if (ellipsis) | |
3892 | t = build_stmt (input_location, CATCH_EXPR, NULL_TREE, compound); | |
3893 | else | |
3894 | t = build_stmt (input_location, CATCH_EXPR, type, compound); | |
3895 | (*cur_try_context)->current_catch = t; | |
3896 | ||
3897 | /* Initialize the decl from the EXC_PTR_EXPR we get from the runtime. */ | |
3898 | t = objc_build_exc_ptr (cur_try_context); | |
3899 | t = convert (TREE_TYPE (decl), t); | |
c2beaa02 | 3900 | /* FIXME: location. */ |
d764a8e6 IS |
3901 | if (type && type != error_mark_node) |
3902 | { | |
3903 | t = build1(NOP_EXPR, ptr_type_node, t); | |
3904 | t = build_function_call (input_location, objc2_begin_catch_decl, | |
3905 | tree_cons (NULL_TREE, t, NULL_TREE)); | |
3906 | ||
c2beaa02 NP |
3907 | /* We might want to build a catch object for this (if it's not |
3908 | id). */ | |
d764a8e6 IS |
3909 | if (POINTER_TYPE_P (type) |
3910 | && !objc_is_object_id (TREE_TYPE (type)) | |
3911 | && TYPED_OBJECT (TREE_TYPE (type))) | |
3912 | objc_v2_add_to_ehtype_list (OBJC_TYPE_NAME (TREE_TYPE (type))); | |
3913 | } | |
3914 | return build2 (MODIFY_EXPR, void_type_node, decl, t); | |
3915 | } | |
3916 | ||
3917 | /* try { catch-body } finally { objc_end_catch (); } */ | |
944fb799 | 3918 | static void |
d764a8e6 IS |
3919 | finish_catch (struct objc_try_context **cur_try_context, tree curr_catch) |
3920 | { | |
3921 | struct objc_try_context *ct; | |
3922 | tree try_exp, func, *l, t ; | |
3923 | location_t loc = (*cur_try_context)->try_locus; | |
3924 | ||
3925 | if (!curr_catch || curr_catch == error_mark_node) | |
3926 | return; | |
3927 | ||
3928 | t = CATCH_BODY (curr_catch); | |
3929 | if (TREE_CODE (t) == BIND_EXPR) | |
3930 | { | |
c2beaa02 | 3931 | /* Usual case of @catch (objc-expr). */ |
d764a8e6 IS |
3932 | objc_begin_try_stmt (loc, BIND_EXPR_BODY (t)); |
3933 | BIND_EXPR_BODY (t) = NULL_TREE; | |
3934 | l = &BIND_EXPR_BODY (t); | |
3935 | } | |
3936 | else | |
3937 | { | |
c2beaa02 | 3938 | /* NULL entry, meaning @catch (...). */ |
d764a8e6 IS |
3939 | objc_begin_try_stmt (loc, t); |
3940 | CATCH_BODY (curr_catch) = NULL_TREE; | |
3941 | l = &CATCH_BODY (curr_catch); | |
3942 | } | |
3943 | ||
c2beaa02 | 3944 | /* Pick up the new context we made in begin_try above... */ |
944fb799 | 3945 | ct = *cur_try_context; |
81e5eca8 MP |
3946 | func = build_function_call_vec (loc, vNULL, objc2_end_catch_decl, NULL, |
3947 | NULL); | |
d764a8e6 IS |
3948 | append_to_statement_list (func, &ct->finally_body); |
3949 | try_exp = build_stmt (loc, TRY_FINALLY_EXPR, ct->try_body, ct->finally_body); | |
3950 | *cur_try_context = ct->outer; | |
3951 | free (ct); | |
3952 | append_to_statement_list (try_exp, l); | |
3953 | append_to_statement_list (curr_catch, &((*cur_try_context)->catch_list)); | |
3954 | } | |
3955 | ||
944fb799 | 3956 | static tree |
d764a8e6 IS |
3957 | finish_try_stmt (struct objc_try_context **cur_try_context) |
3958 | { | |
3959 | struct objc_try_context *c = *cur_try_context; | |
3960 | tree stmt = c->try_body; | |
3961 | if (c->catch_list) | |
3962 | stmt = build_stmt (c->try_locus, TRY_CATCH_EXPR, stmt, c->catch_list); | |
3963 | if (c->finally_body) | |
3964 | stmt = build_stmt (c->try_locus, TRY_FINALLY_EXPR, stmt, c->finally_body); | |
3965 | return stmt; | |
3966 | } | |
3967 | ||
3968 | #include "gt-objc-objc-next-runtime-abi-02.h" |