1 | /* Library interface to C front end |
2 | Copyright (C) 2014-2023 Free Software Foundation, Inc. |
3 | |
4 | This file is part of GCC. |
5 | |
6 | GCC is free software; you can redistribute it and/or modify it under |
7 | the terms of the GNU General Public License as published by the Free |
8 | Software Foundation; either version 3, or (at your option) any later |
9 | version. |
10 | |
11 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or |
13 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
14 | for more details. |
15 | |
16 | You should have received a copy of the GNU General Public License |
17 | along with GCC; see the file COPYING3. If not see |
18 | <http://www.gnu.org/licenses/>. */ |
19 | |
20 | #include <cc1plugin-config.h> |
21 | |
22 | #undef PACKAGE_NAME |
23 | #undef PACKAGE_STRING |
24 | #undef PACKAGE_TARNAME |
25 | #undef PACKAGE_VERSION |
26 | |
27 | #include "../gcc/config.h" |
28 | |
29 | #undef PACKAGE_NAME |
30 | #undef PACKAGE_STRING |
31 | #undef PACKAGE_TARNAME |
32 | #undef PACKAGE_VERSION |
33 | |
34 | #define INCLUDE_MEMORY |
35 | #include "gcc-plugin.h" |
36 | #include "system.h" |
37 | #include "coretypes.h" |
38 | #include "stringpool.h" |
39 | |
40 | #include "gcc-interface.h" |
41 | #include "hash-set.h" |
42 | #include "machmode.h" |
43 | #include "vec.h" |
44 | #include "double-int.h" |
45 | #include "input.h" |
46 | #include "alias.h" |
47 | #include "symtab.h" |
48 | #include "options.h" |
49 | #include "wide-int.h" |
50 | #include "inchash.h" |
51 | #include "tree.h" |
52 | #include "fold-const.h" |
53 | #include "stor-layout.h" |
54 | #include "c-tree.h" |
55 | #include "toplev.h" |
56 | #include "timevar.h" |
57 | #include "hash-table.h" |
58 | #include "tm.h" |
59 | #include "c-family/c-pragma.h" |
60 | #include "c-lang.h" |
61 | #include "diagnostic.h" |
62 | #include "langhooks.h" |
63 | #include "langhooks-def.h" |
64 | |
65 | #include "callbacks.hh" |
66 | #include "connection.hh" |
67 | #include "marshall.hh" |
68 | #include "rpc.hh" |
69 | #include "gcc-c-interface.h" |
70 | #include "context.hh" |
71 | |
72 | #include <vector> |
73 | |
74 | using namespace cc1_plugin; |
75 | |
76 | |
77 | |
78 | // A wrapper for pushdecl that doesn't let gdb have a chance to |
79 | // instantiate a symbol. |
80 | |
81 | static void |
82 | pushdecl_safe (tree decl) |
83 | { |
84 | void (*save) (enum c_oracle_request, tree identifier); |
85 | |
86 | save = c_binding_oracle; |
87 | c_binding_oracle = NULL; |
88 | pushdecl (decl); |
89 | c_binding_oracle = save; |
90 | } |
91 | |
92 | |
93 | |
94 | static void |
95 | plugin_binding_oracle (enum c_oracle_request kind, tree identifier) |
96 | { |
97 | enum gcc_c_oracle_request request; |
98 | |
99 | gcc_assert (current_context != NULL); |
100 | |
101 | switch (kind) |
102 | { |
103 | case C_ORACLE_SYMBOL: |
104 | request = GCC_C_ORACLE_SYMBOL; |
105 | break; |
106 | case C_ORACLE_TAG: |
107 | request = GCC_C_ORACLE_TAG; |
108 | break; |
109 | case C_ORACLE_LABEL: |
110 | request = GCC_C_ORACLE_LABEL; |
111 | break; |
112 | default: |
113 | abort (); |
114 | } |
115 | |
116 | int ignore; |
117 | cc1_plugin::call (conn: current_context, method: "binding_oracle" , result: &ignore, |
118 | args: request, IDENTIFIER_POINTER (identifier)); |
119 | } |
120 | |
121 | static void |
122 | plugin_pragma_user_expression (cpp_reader *) |
123 | { |
124 | c_binding_oracle = plugin_binding_oracle; |
125 | } |
126 | |
127 | static void |
128 | (void *, void *) |
129 | { |
130 | c_register_pragma (space: "GCC" , name: "user_expression" , handler: plugin_pragma_user_expression); |
131 | } |
132 | |
133 | |
134 | |
135 | // Maybe rewrite a decl to its address. |
136 | static tree |
137 | address_rewriter (tree *in, int *walk_subtrees, void *arg) |
138 | { |
139 | plugin_context *ctx = (plugin_context *) arg; |
140 | |
141 | if (!DECL_P (*in) || DECL_NAME (*in) == NULL_TREE) |
142 | return NULL_TREE; |
143 | |
144 | decl_addr_value value; |
145 | value.decl = *in; |
146 | decl_addr_value *found_value = ctx->address_map.find (value: &value); |
147 | if (found_value != NULL) |
148 | ; |
149 | else if (DECL_IS_UNDECLARED_BUILTIN (*in)) |
150 | { |
151 | gcc_address address; |
152 | |
153 | if (!cc1_plugin::call (conn: ctx, method: "address_oracle" , result: &address, |
154 | IDENTIFIER_POINTER (DECL_NAME (*in)))) |
155 | return NULL_TREE; |
156 | if (address == 0) |
157 | return NULL_TREE; |
158 | |
159 | // Insert the decl into the address map in case it is referenced |
160 | // again. |
161 | value.address = build_int_cst_type (ptr_type_node, address); |
162 | decl_addr_value **slot = ctx->address_map.find_slot (value: &value, insert: INSERT); |
163 | gcc_assert (*slot == NULL); |
164 | *slot |
165 | = static_cast<decl_addr_value *> (xmalloc (sizeof (decl_addr_value))); |
166 | **slot = value; |
167 | found_value = *slot; |
168 | } |
169 | else |
170 | return NULL_TREE; |
171 | |
172 | if (found_value->address != error_mark_node) |
173 | { |
174 | // We have an address for the decl, so rewrite the tree. |
175 | tree ptr_type = build_pointer_type (TREE_TYPE (*in)); |
176 | *in = fold_build1 (INDIRECT_REF, TREE_TYPE (*in), |
177 | fold_build1 (CONVERT_EXPR, ptr_type, |
178 | found_value->address)); |
179 | } |
180 | |
181 | *walk_subtrees = 0; |
182 | |
183 | return NULL_TREE; |
184 | } |
185 | |
186 | // When generating code for gdb, we want to be able to use absolute |
187 | // addresses to refer to otherwise external objects that gdb knows |
188 | // about. gdb passes in these addresses when building decls, and then |
189 | // before gimplification we go through the trees, rewriting uses to |
190 | // the equivalent of "*(TYPE *) ADDR". |
191 | static void |
192 | rewrite_decls_to_addresses (void *function_in, void *) |
193 | { |
194 | tree function = (tree) function_in; |
195 | |
196 | // Do nothing if we're not in gdb. |
197 | if (current_context == NULL) |
198 | return; |
199 | |
200 | walk_tree (&DECL_SAVED_TREE (function), address_rewriter, current_context, |
201 | NULL); |
202 | } |
203 | |
204 | |
205 | |
206 | gcc_decl |
207 | plugin_build_decl (cc1_plugin::connection *self, |
208 | const char *name, |
209 | enum gcc_c_symbol_kind sym_kind, |
210 | gcc_type sym_type_in, |
211 | const char *substitution_name, |
212 | gcc_address address, |
213 | const char *filename, |
214 | unsigned int line_number) |
215 | { |
216 | plugin_context *ctx = static_cast<plugin_context *> (self); |
217 | tree identifier = get_identifier (name); |
218 | enum tree_code code; |
219 | tree decl; |
220 | tree sym_type = convert_in (v: sym_type_in); |
221 | |
222 | switch (sym_kind) |
223 | { |
224 | case GCC_C_SYMBOL_FUNCTION: |
225 | code = FUNCTION_DECL; |
226 | break; |
227 | |
228 | case GCC_C_SYMBOL_VARIABLE: |
229 | code = VAR_DECL; |
230 | break; |
231 | |
232 | case GCC_C_SYMBOL_TYPEDEF: |
233 | code = TYPE_DECL; |
234 | break; |
235 | |
236 | case GCC_C_SYMBOL_LABEL: |
237 | // FIXME: we aren't ready to handle labels yet. |
238 | // It isn't clear how to translate them properly |
239 | // and in any case a "goto" isn't likely to work. |
240 | return convert_out (error_mark_node); |
241 | |
242 | default: |
243 | abort (); |
244 | } |
245 | |
246 | location_t loc = ctx->get_location_t (filename, line_number); |
247 | |
248 | decl = build_decl (loc, code, identifier, sym_type); |
249 | TREE_USED (decl) = 1; |
250 | TREE_ADDRESSABLE (decl) = 1; |
251 | |
252 | if (sym_kind != GCC_C_SYMBOL_TYPEDEF) |
253 | { |
254 | decl_addr_value value; |
255 | |
256 | DECL_EXTERNAL (decl) = 1; |
257 | value.decl = decl; |
258 | if (substitution_name != NULL) |
259 | { |
260 | // If the translator gave us a name without a binding, |
261 | // we can just substitute error_mark_node, since we know the |
262 | // translator will be reporting an error anyhow. |
263 | value.address |
264 | = lookup_name (get_identifier (substitution_name)); |
265 | if (value.address == NULL_TREE) |
266 | value.address = error_mark_node; |
267 | } |
268 | else |
269 | value.address = build_int_cst_type (ptr_type_node, address); |
270 | decl_addr_value **slot = ctx->address_map.find_slot (value: &value, insert: INSERT); |
271 | gcc_assert (*slot == NULL); |
272 | *slot |
273 | = static_cast<decl_addr_value *> (xmalloc (sizeof (decl_addr_value))); |
274 | **slot = value; |
275 | } |
276 | |
277 | return convert_out (t: ctx->preserve (t: decl)); |
278 | } |
279 | |
280 | int |
281 | plugin_bind (cc1_plugin::connection *, |
282 | gcc_decl decl_in, int is_global) |
283 | { |
284 | tree decl = convert_in (v: decl_in); |
285 | c_bind (DECL_SOURCE_LOCATION (decl), decl, is_global); |
286 | rest_of_decl_compilation (decl, is_global, 0); |
287 | return 1; |
288 | } |
289 | |
290 | int |
291 | plugin_tagbind (cc1_plugin::connection *self, |
292 | const char *name, gcc_type tagged_type, |
293 | const char *filename, unsigned int line_number) |
294 | { |
295 | plugin_context *ctx = static_cast<plugin_context *> (self); |
296 | tree t = convert_in (v: tagged_type), x; |
297 | c_pushtag (ctx->get_location_t (filename, line_number), |
298 | get_identifier (name), t); |
299 | |
300 | /* Propagate the newly-added type name so that previously-created |
301 | variant types are not disconnected from their main variants. */ |
302 | for (x = TYPE_MAIN_VARIANT (t); x; x = TYPE_NEXT_VARIANT (x)) |
303 | TYPE_NAME (x) = TYPE_NAME (t); |
304 | |
305 | return 1; |
306 | } |
307 | |
308 | gcc_type |
309 | plugin_build_pointer_type (cc1_plugin::connection *, |
310 | gcc_type base_type) |
311 | { |
312 | // No need to preserve a pointer type as the base type is preserved. |
313 | return convert_out (t: build_pointer_type (convert_in (v: base_type))); |
314 | } |
315 | |
316 | // TYPE_NAME needs to be a valid pointer, even if there is no name available. |
317 | |
318 | static tree |
319 | build_anonymous_node (enum tree_code code) |
320 | { |
321 | tree node = make_node (code); |
322 | tree type_decl = build_decl (input_location, TYPE_DECL, NULL_TREE, node); |
323 | TYPE_NAME (node) = type_decl; |
324 | TYPE_STUB_DECL (node) = type_decl; |
325 | return node; |
326 | } |
327 | |
328 | gcc_type |
329 | plugin_build_record_type (cc1_plugin::connection *self) |
330 | { |
331 | plugin_context *ctx = static_cast<plugin_context *> (self); |
332 | return convert_out (t: ctx->preserve (t: build_anonymous_node (code: RECORD_TYPE))); |
333 | } |
334 | |
335 | gcc_type |
336 | plugin_build_union_type (cc1_plugin::connection *self) |
337 | { |
338 | plugin_context *ctx = static_cast<plugin_context *> (self); |
339 | return convert_out (t: ctx->preserve (t: build_anonymous_node (code: UNION_TYPE))); |
340 | } |
341 | |
342 | int |
343 | plugin_build_add_field (cc1_plugin::connection *, |
344 | gcc_type record_or_union_type_in, |
345 | const char *field_name, |
346 | gcc_type field_type_in, |
347 | unsigned long bitsize, |
348 | unsigned long bitpos) |
349 | { |
350 | tree record_or_union_type = convert_in (v: record_or_union_type_in); |
351 | tree field_type = convert_in (v: field_type_in); |
352 | |
353 | gcc_assert (TREE_CODE (record_or_union_type) == RECORD_TYPE |
354 | || TREE_CODE (record_or_union_type) == UNION_TYPE); |
355 | |
356 | /* Note that gdb does not preserve the location of field decls, so |
357 | we can't provide a decent location here. */ |
358 | tree decl = build_decl (BUILTINS_LOCATION, FIELD_DECL, |
359 | get_identifier (field_name), field_type); |
360 | DECL_FIELD_CONTEXT (decl) = record_or_union_type; |
361 | |
362 | if (TREE_CODE (field_type) == INTEGER_TYPE |
363 | && TYPE_PRECISION (field_type) != bitsize) |
364 | { |
365 | DECL_BIT_FIELD_TYPE (decl) = field_type; |
366 | TREE_TYPE (decl) |
367 | = c_build_bitfield_integer_type (bitsize, TYPE_UNSIGNED (field_type)); |
368 | } |
369 | |
370 | SET_DECL_MODE (decl, TYPE_MODE (TREE_TYPE (decl))); |
371 | |
372 | // There's no way to recover this from DWARF. |
373 | SET_DECL_OFFSET_ALIGN (decl, TYPE_PRECISION (pointer_sized_int_node)); |
374 | |
375 | tree pos = bitsize_int (bitpos); |
376 | pos_from_bit (&DECL_FIELD_OFFSET (decl), &DECL_FIELD_BIT_OFFSET (decl), |
377 | DECL_OFFSET_ALIGN (decl), pos); |
378 | |
379 | DECL_SIZE (decl) = bitsize_int (bitsize); |
380 | DECL_SIZE_UNIT (decl) = size_int ((bitsize + BITS_PER_UNIT - 1) |
381 | / BITS_PER_UNIT); |
382 | |
383 | DECL_CHAIN (decl) = TYPE_FIELDS (record_or_union_type); |
384 | TYPE_FIELDS (record_or_union_type) = decl; |
385 | |
386 | return 1; |
387 | } |
388 | |
389 | int |
390 | plugin_finish_record_or_union (cc1_plugin::connection *, |
391 | gcc_type record_or_union_type_in, |
392 | unsigned long size_in_bytes) |
393 | { |
394 | tree record_or_union_type = convert_in (v: record_or_union_type_in); |
395 | |
396 | gcc_assert (TREE_CODE (record_or_union_type) == RECORD_TYPE |
397 | || TREE_CODE (record_or_union_type) == UNION_TYPE); |
398 | |
399 | /* We built the field list in reverse order, so fix it now. */ |
400 | TYPE_FIELDS (record_or_union_type) |
401 | = nreverse (TYPE_FIELDS (record_or_union_type)); |
402 | |
403 | if (TREE_CODE (record_or_union_type) == UNION_TYPE) |
404 | { |
405 | /* Unions can just be handled by the generic code. */ |
406 | layout_type (record_or_union_type); |
407 | } |
408 | else |
409 | { |
410 | // FIXME there's no way to get this from DWARF, |
411 | // or even, it seems, a particularly good way to deduce it. |
412 | SET_TYPE_ALIGN (record_or_union_type, |
413 | TYPE_PRECISION (pointer_sized_int_node)); |
414 | |
415 | TYPE_SIZE (record_or_union_type) = bitsize_int (size_in_bytes |
416 | * BITS_PER_UNIT); |
417 | TYPE_SIZE_UNIT (record_or_union_type) = size_int (size_in_bytes); |
418 | |
419 | compute_record_mode (record_or_union_type); |
420 | finish_bitfield_layout (record_or_union_type); |
421 | // FIXME we have no idea about TYPE_PACKED |
422 | } |
423 | |
424 | tree t = record_or_union_type, x; |
425 | for (x = TYPE_MAIN_VARIANT (t); x; x = TYPE_NEXT_VARIANT (x)) |
426 | { |
427 | /* Like finish_struct, update the qualified variant types. */ |
428 | TYPE_FIELDS (x) = TYPE_FIELDS (t); |
429 | TYPE_LANG_SPECIFIC (x) = TYPE_LANG_SPECIFIC (t); |
430 | C_TYPE_FIELDS_READONLY (x) = C_TYPE_FIELDS_READONLY (t); |
431 | C_TYPE_FIELDS_VOLATILE (x) = C_TYPE_FIELDS_VOLATILE (t); |
432 | C_TYPE_VARIABLE_SIZE (x) = C_TYPE_VARIABLE_SIZE (t); |
433 | /* We copy these fields too. */ |
434 | SET_TYPE_ALIGN (x, TYPE_ALIGN (t)); |
435 | TYPE_SIZE (x) = TYPE_SIZE (t); |
436 | TYPE_SIZE_UNIT (x) = TYPE_SIZE_UNIT (t); |
437 | if (x != record_or_union_type) |
438 | compute_record_mode (x); |
439 | } |
440 | |
441 | return 1; |
442 | } |
443 | |
444 | gcc_type |
445 | plugin_build_enum_type (cc1_plugin::connection *self, |
446 | gcc_type underlying_int_type_in) |
447 | { |
448 | tree underlying_int_type = convert_in (v: underlying_int_type_in); |
449 | |
450 | if (underlying_int_type == error_mark_node) |
451 | return convert_out (error_mark_node); |
452 | |
453 | tree result = build_anonymous_node (code: ENUMERAL_TYPE); |
454 | |
455 | TYPE_PRECISION (result) = TYPE_PRECISION (underlying_int_type); |
456 | TYPE_UNSIGNED (result) = TYPE_UNSIGNED (underlying_int_type); |
457 | |
458 | plugin_context *ctx = static_cast<plugin_context *> (self); |
459 | return convert_out (t: ctx->preserve (t: result)); |
460 | } |
461 | |
462 | int |
463 | plugin_build_add_enum_constant (cc1_plugin::connection *, |
464 | gcc_type enum_type_in, |
465 | const char *name, |
466 | unsigned long value) |
467 | { |
468 | tree cst, decl, cons; |
469 | tree enum_type = convert_in (v: enum_type_in); |
470 | |
471 | gcc_assert (TREE_CODE (enum_type) == ENUMERAL_TYPE); |
472 | |
473 | cst = build_int_cst (enum_type, value); |
474 | /* Note that gdb does not preserve the location of enum constants, |
475 | so we can't provide a decent location here. */ |
476 | decl = build_decl (BUILTINS_LOCATION, CONST_DECL, |
477 | get_identifier (name), enum_type); |
478 | DECL_INITIAL (decl) = cst; |
479 | pushdecl_safe (decl); |
480 | |
481 | cons = tree_cons (DECL_NAME (decl), cst, TYPE_VALUES (enum_type)); |
482 | TYPE_VALUES (enum_type) = cons; |
483 | |
484 | return 1; |
485 | } |
486 | |
487 | int |
488 | plugin_finish_enum_type (cc1_plugin::connection *, |
489 | gcc_type enum_type_in) |
490 | { |
491 | tree enum_type = convert_in (v: enum_type_in); |
492 | tree minnode, maxnode, iter; |
493 | |
494 | iter = TYPE_VALUES (enum_type); |
495 | minnode = maxnode = TREE_VALUE (iter); |
496 | for (iter = TREE_CHAIN (iter); |
497 | iter != NULL_TREE; |
498 | iter = TREE_CHAIN (iter)) |
499 | { |
500 | tree value = TREE_VALUE (iter); |
501 | if (tree_int_cst_lt (t1: maxnode, t2: value)) |
502 | maxnode = value; |
503 | if (tree_int_cst_lt (t1: value, t2: minnode)) |
504 | minnode = value; |
505 | } |
506 | TYPE_MIN_VALUE (enum_type) = minnode; |
507 | TYPE_MAX_VALUE (enum_type) = maxnode; |
508 | |
509 | layout_type (enum_type); |
510 | |
511 | return 1; |
512 | } |
513 | |
514 | gcc_type |
515 | plugin_build_function_type (cc1_plugin::connection *self, |
516 | gcc_type return_type_in, |
517 | const struct gcc_type_array *argument_types_in, |
518 | int is_varargs) |
519 | { |
520 | tree return_type = convert_in (v: return_type_in); |
521 | tree result; |
522 | |
523 | std::vector<tree> argument_types (argument_types_in->n_elements); |
524 | for (int i = 0; i < argument_types_in->n_elements; ++i) |
525 | argument_types[i] = convert_in (v: argument_types_in->elements[i]); |
526 | |
527 | if (is_varargs) |
528 | result = build_varargs_function_type_array (return_type, |
529 | argument_types_in->n_elements, |
530 | argument_types.data ()); |
531 | else |
532 | result = build_function_type_array (return_type, |
533 | argument_types_in->n_elements, |
534 | argument_types.data ()); |
535 | |
536 | plugin_context *ctx = static_cast<plugin_context *> (self); |
537 | return convert_out (t: ctx->preserve (t: result)); |
538 | } |
539 | |
540 | /* Return a builtin type associated with BUILTIN_NAME. */ |
541 | |
542 | static tree |
543 | safe_lookup_builtin_type (const char *builtin_name) |
544 | { |
545 | tree result = NULL_TREE; |
546 | |
547 | if (!builtin_name) |
548 | return result; |
549 | |
550 | result = identifier_global_value (get_identifier (builtin_name)); |
551 | |
552 | if (!result) |
553 | return result; |
554 | |
555 | gcc_assert (TREE_CODE (result) == TYPE_DECL); |
556 | result = TREE_TYPE (result); |
557 | return result; |
558 | } |
559 | |
560 | static gcc_type |
561 | plugin_int_check (cc1_plugin::connection *self, |
562 | int is_unsigned, unsigned long size_in_bytes, |
563 | tree result) |
564 | { |
565 | if (result == NULL_TREE) |
566 | result = error_mark_node; |
567 | else |
568 | { |
569 | gcc_assert (!TYPE_UNSIGNED (result) == !is_unsigned); |
570 | gcc_assert (TREE_CODE (TYPE_SIZE (result)) == INTEGER_CST); |
571 | gcc_assert (TYPE_PRECISION (result) == BITS_PER_UNIT * size_in_bytes); |
572 | |
573 | plugin_context *ctx = static_cast<plugin_context *> (self); |
574 | ctx->preserve (t: result); |
575 | } |
576 | return convert_out (t: result); |
577 | } |
578 | |
579 | gcc_type |
580 | plugin_int_type_v0 (cc1_plugin::connection *self, |
581 | int is_unsigned, unsigned long size_in_bytes) |
582 | { |
583 | tree result = c_common_type_for_size (BITS_PER_UNIT * size_in_bytes, |
584 | is_unsigned); |
585 | |
586 | return plugin_int_check (self, is_unsigned, size_in_bytes, result); |
587 | } |
588 | |
589 | gcc_type |
590 | plugin_int_type (cc1_plugin::connection *self, |
591 | int is_unsigned, unsigned long size_in_bytes, |
592 | const char *builtin_name) |
593 | { |
594 | if (!builtin_name) |
595 | return plugin_int_type_v0 (self, is_unsigned, size_in_bytes); |
596 | |
597 | tree result = safe_lookup_builtin_type (builtin_name); |
598 | gcc_assert (!result || TREE_CODE (result) == INTEGER_TYPE); |
599 | |
600 | return plugin_int_check (self, is_unsigned, size_in_bytes, result); |
601 | } |
602 | |
603 | gcc_type |
604 | plugin_char_type (cc1_plugin::connection *) |
605 | { |
606 | return convert_out (char_type_node); |
607 | } |
608 | |
609 | gcc_type |
610 | plugin_float_type_v0 (cc1_plugin::connection *, |
611 | unsigned long size_in_bytes) |
612 | { |
613 | if (BITS_PER_UNIT * size_in_bytes == TYPE_PRECISION (float_type_node)) |
614 | return convert_out (float_type_node); |
615 | if (BITS_PER_UNIT * size_in_bytes == TYPE_PRECISION (double_type_node)) |
616 | return convert_out (double_type_node); |
617 | if (BITS_PER_UNIT * size_in_bytes == TYPE_PRECISION (long_double_type_node)) |
618 | return convert_out (long_double_type_node); |
619 | return convert_out (error_mark_node); |
620 | } |
621 | |
622 | gcc_type |
623 | plugin_float_type (cc1_plugin::connection *self, |
624 | unsigned long size_in_bytes, |
625 | const char *builtin_name) |
626 | { |
627 | if (!builtin_name) |
628 | return plugin_float_type_v0 (self, size_in_bytes); |
629 | |
630 | tree result = safe_lookup_builtin_type (builtin_name); |
631 | |
632 | if (!result) |
633 | return convert_out (error_mark_node); |
634 | |
635 | gcc_assert (SCALAR_FLOAT_TYPE_P (result)); |
636 | gcc_assert (BITS_PER_UNIT * size_in_bytes == TYPE_PRECISION (result)); |
637 | |
638 | return convert_out (t: result); |
639 | } |
640 | |
641 | gcc_type |
642 | plugin_void_type (cc1_plugin::connection *) |
643 | { |
644 | return convert_out (void_type_node); |
645 | } |
646 | |
647 | gcc_type |
648 | plugin_bool_type (cc1_plugin::connection *) |
649 | { |
650 | return convert_out (boolean_type_node); |
651 | } |
652 | |
653 | gcc_type |
654 | plugin_build_array_type (cc1_plugin::connection *self, |
655 | gcc_type element_type_in, int num_elements) |
656 | { |
657 | tree element_type = convert_in (v: element_type_in); |
658 | tree result; |
659 | |
660 | if (num_elements == -1) |
661 | result = build_array_type (element_type, NULL_TREE); |
662 | else |
663 | result = build_array_type_nelts (element_type, num_elements); |
664 | |
665 | plugin_context *ctx = static_cast<plugin_context *> (self); |
666 | return convert_out (t: ctx->preserve (t: result)); |
667 | } |
668 | |
669 | gcc_type |
670 | plugin_build_vla_array_type (cc1_plugin::connection *self, |
671 | gcc_type element_type_in, |
672 | const char *upper_bound_name) |
673 | { |
674 | tree element_type = convert_in (v: element_type_in); |
675 | tree upper_bound = lookup_name (get_identifier (upper_bound_name)); |
676 | tree range = build_index_type (upper_bound); |
677 | |
678 | tree result = build_array_type (element_type, range); |
679 | C_TYPE_VARIABLE_SIZE (result) = 1; |
680 | |
681 | plugin_context *ctx = static_cast<plugin_context *> (self); |
682 | return convert_out (t: ctx->preserve (t: result)); |
683 | } |
684 | |
685 | gcc_type |
686 | plugin_build_qualified_type (cc1_plugin::connection *, |
687 | gcc_type unqualified_type_in, |
688 | enum gcc_qualifiers qualifiers) |
689 | { |
690 | tree unqualified_type = convert_in (v: unqualified_type_in); |
691 | int quals = 0; |
692 | |
693 | if ((qualifiers & GCC_QUALIFIER_CONST) != 0) |
694 | quals |= TYPE_QUAL_CONST; |
695 | if ((qualifiers & GCC_QUALIFIER_VOLATILE) != 0) |
696 | quals |= TYPE_QUAL_VOLATILE; |
697 | if ((qualifiers & GCC_QUALIFIER_RESTRICT) != 0) |
698 | quals |= TYPE_QUAL_RESTRICT; |
699 | |
700 | return convert_out (t: build_qualified_type (unqualified_type, quals)); |
701 | } |
702 | |
703 | gcc_type |
704 | plugin_build_complex_type (cc1_plugin::connection *self, |
705 | gcc_type base_type) |
706 | { |
707 | plugin_context *ctx = static_cast<plugin_context *> (self); |
708 | return convert_out (t: ctx->preserve (t: build_complex_type (convert_in (v: base_type)))); |
709 | } |
710 | |
711 | gcc_type |
712 | plugin_build_vector_type (cc1_plugin::connection *self, |
713 | gcc_type base_type, int nunits) |
714 | { |
715 | plugin_context *ctx = static_cast<plugin_context *> (self); |
716 | return convert_out (t: ctx->preserve (t: build_vector_type (convert_in (v: base_type), |
717 | nunits))); |
718 | } |
719 | |
720 | int |
721 | plugin_build_constant (cc1_plugin::connection *self, gcc_type type_in, |
722 | const char *name, unsigned long value, |
723 | const char *filename, unsigned int line_number) |
724 | { |
725 | plugin_context *ctx = static_cast<plugin_context *> (self); |
726 | tree cst, decl; |
727 | tree type = convert_in (v: type_in); |
728 | |
729 | cst = build_int_cst (type, value); |
730 | decl = build_decl (ctx->get_location_t (filename, line_number), |
731 | CONST_DECL, get_identifier (name), type); |
732 | DECL_INITIAL (decl) = cst; |
733 | pushdecl_safe (decl); |
734 | |
735 | return 1; |
736 | } |
737 | |
738 | gcc_type |
739 | plugin_error (cc1_plugin::connection *, |
740 | const char *message) |
741 | { |
742 | error ("%s" , message); |
743 | return convert_out (error_mark_node); |
744 | } |
745 | |
746 | |
747 | |
748 | #ifdef __GNUC__ |
749 | #pragma GCC visibility push(default) |
750 | #endif |
751 | |
752 | int |
753 | plugin_init (struct plugin_name_args *plugin_info, |
754 | struct plugin_gcc_version *) |
755 | { |
756 | generic_plugin_init (plugin_info, version: GCC_C_FE_VERSION_1); |
757 | |
758 | register_callback (plugin_name: plugin_info->base_name, event: PLUGIN_PRAGMAS, |
759 | callback: plugin_init_extra_pragmas, NULL); |
760 | register_callback (plugin_name: plugin_info->base_name, event: PLUGIN_PRE_GENERICIZE, |
761 | callback: rewrite_decls_to_addresses, NULL); |
762 | |
763 | #define GCC_METHOD0(R, N) \ |
764 | { \ |
765 | cc1_plugin::callback_ftype *fun \ |
766 | = cc1_plugin::invoker<R>::invoke<plugin_ ## N>; \ |
767 | current_context->add_callback (# N, fun); \ |
768 | } |
769 | #define GCC_METHOD1(R, N, A) \ |
770 | { \ |
771 | cc1_plugin::callback_ftype *fun \ |
772 | = cc1_plugin::invoker<R, A>::invoke<plugin_ ## N>; \ |
773 | current_context->add_callback (# N, fun); \ |
774 | } |
775 | #define GCC_METHOD2(R, N, A, B) \ |
776 | { \ |
777 | cc1_plugin::callback_ftype *fun \ |
778 | = cc1_plugin::invoker<R, A, B>::invoke<plugin_ ## N>; \ |
779 | current_context->add_callback (# N, fun); \ |
780 | } |
781 | #define GCC_METHOD3(R, N, A, B, C) \ |
782 | { \ |
783 | cc1_plugin::callback_ftype *fun \ |
784 | = cc1_plugin::invoker<R, A, B, C>::invoke<plugin_ ## N>; \ |
785 | current_context->add_callback (# N, fun); \ |
786 | } |
787 | #define GCC_METHOD4(R, N, A, B, C, D) \ |
788 | { \ |
789 | cc1_plugin::callback_ftype *fun \ |
790 | = cc1_plugin::invoker<R, A, B, C, \ |
791 | D>::invoke<plugin_ ## N>; \ |
792 | current_context->add_callback (# N, fun); \ |
793 | } |
794 | #define GCC_METHOD5(R, N, A, B, C, D, E) \ |
795 | { \ |
796 | cc1_plugin::callback_ftype *fun \ |
797 | = cc1_plugin::invoker<R, A, B, C, D, \ |
798 | E>::invoke<plugin_ ## N>; \ |
799 | current_context->add_callback (# N, fun); \ |
800 | } |
801 | #define GCC_METHOD7(R, N, A, B, C, D, E, F, G) \ |
802 | { \ |
803 | cc1_plugin::callback_ftype *fun \ |
804 | = cc1_plugin::invoker<R, A, B, C, D, \ |
805 | E, F, G>::invoke<plugin_ ## N>; \ |
806 | current_context->add_callback (# N, fun); \ |
807 | } |
808 | |
809 | #include "gcc-c-fe.def" |
810 | |
811 | #undef GCC_METHOD0 |
812 | #undef GCC_METHOD1 |
813 | #undef GCC_METHOD2 |
814 | #undef GCC_METHOD3 |
815 | #undef GCC_METHOD4 |
816 | #undef GCC_METHOD5 |
817 | #undef GCC_METHOD7 |
818 | |
819 | return 0; |
820 | } |
821 | |