externs1.h revision 1.163 1 /* $NetBSD: externs1.h,v 1.163 2022/07/01 21:25:39 rillig Exp $ */
2
3 /*
4 * Copyright (c) 1994, 1995 Jochen Pohl
5 * All Rights Reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by Jochen Pohl for
18 * The NetBSD Project.
19 * 4. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 /*
35 * main.c
36 */
37 extern int aflag;
38 extern bool bflag;
39 extern bool cflag;
40 extern bool eflag;
41 extern bool Fflag;
42 extern bool hflag;
43 extern bool pflag;
44 extern bool rflag;
45 extern bool uflag;
46 extern bool vflag;
47 extern bool yflag;
48 extern bool wflag;
49 extern bool zflag;
50 extern bool Tflag;
51 extern bool Pflag;
52
53 extern bool allow_trad;
54 extern bool allow_c90;
55 extern bool allow_c99;
56 extern bool allow_c11;
57 extern bool allow_gcc;
58
59 extern void norecover(void);
60
61 /*
62 * cgram.y
63 */
64 extern int block_level;
65 extern size_t mem_block_level;
66 extern int yydebug;
67
68 extern int yyerror(const char *);
69 extern int yyparse(void);
70
71 /*
72 * scan.l
73 */
74 extern bool in_gcc_attribute;
75 extern pos_t curr_pos;
76 extern pos_t csrc_pos;
77 extern bool in_system_header;
78 extern symt_t symtyp;
79 extern FILE *yyin;
80
81 extern void initscan(void);
82 extern int64_t convert_integer(int64_t, tspec_t, unsigned int);
83 extern void clear_warn_flags(void);
84 extern sym_t *getsym(sbuf_t *);
85 extern void clean_up_after_error(void);
86 extern sym_t *pushdown(const sym_t *);
87 extern sym_t *mktempsym(type_t *);
88 extern void rmsym(sym_t *);
89 extern void rmsyms(sym_t *);
90 extern void inssym(int, sym_t *);
91 extern void freeyyv(void *, int);
92 extern int yylex(void);
93
94 /*
95 * mem1.c
96 */
97 extern const char *record_filename(const char *, size_t);
98 extern int get_filename_id(const char *);
99 extern void add_directory_replacement(char *);
100 extern const char *transform_filename(const char *, size_t);
101
102 extern void initmem(void);
103
104 extern void *block_zero_alloc(size_t);
105 extern void *level_zero_alloc(size_t, size_t);
106 extern void level_free_all(size_t);
107
108 extern void *expr_zero_alloc(size_t);
109 extern tnode_t *expr_alloc_tnode(void);
110 extern void expr_free_all(void);
111 extern struct memory_block *expr_save_memory(void);
112 extern void expr_restore_memory(struct memory_block *);
113
114 /*
115 * debug.c
116 */
117
118 #ifdef DEBUG
119 const char *declaration_kind_name(declaration_kind);
120 const char *scl_name(scl_t);
121 const char *symt_name(symt_t);
122 const char *tqual_name(tqual_t);
123 void debug_dinfo(const dinfo_t *);
124 void debug_node(const tnode_t *);
125 void debug_sym(const char *, const sym_t *, const char *);
126 void debug_symtab(void);
127 void debug_printf(const char *fmt, ...) __printflike(1, 2);
128 void debug_print_indent(void);
129 void debug_indent_inc(void);
130 void debug_indent_dec(void);
131 void debug_enter(const char *);
132 void debug_step(const char *fmt, ...) __printflike(1, 2);
133 void debug_leave(const char *);
134 #define debug_enter() (debug_enter)(__func__)
135 #define debug_leave() (debug_leave)(__func__)
136 #else
137 #define debug_noop() do { } while (false)
138 #define debug_dinfo(d) debug_noop()
139 #define debug_sym(p, sym, s) debug_noop()
140 #define debug_symtab() debug_noop()
141 #define debug_node(tn) debug_noop()
142 #define debug_printf(...) debug_noop()
143 #define debug_print_indent() debug_noop()
144 #define debug_indent_inc() debug_noop()
145 #define debug_indent_dec() debug_noop()
146 #define debug_enter() debug_noop()
147 #define debug_step(...) debug_noop()
148 #define debug_leave() debug_noop()
149 #endif
150
151 /*
152 * err.c
153 */
154 extern int nerr;
155 extern int sytxerr;
156
157 extern void msglist(void);
158 extern void error_at(int, const pos_t *, ...);
159 extern void warning_at(int, const pos_t *, ...);
160 extern void message_at(int, const pos_t *, ...);
161 extern void error(int, ...);
162 extern void warning(int, ...);
163 extern bool gnuism(int, ...);
164 extern void c99ism(int, ...);
165 extern void c11ism(int, ...);
166 extern void internal_error(const char *, int, const char *, ...)
167 __attribute__((__noreturn__,__format__(__printf__, 3, 4)));
168 extern void assert_failed(const char *, int, const char *, const char *)
169 __attribute__((__noreturn__));
170 extern void update_location(const char *, int, bool, bool);
171 extern void suppress_messages(char *);
172
173 /*
174 * decl.c
175 */
176 extern dinfo_t *dcs;
177 extern const char *unnamed;
178 extern int enumval;
179
180 extern void initdecl(void);
181 extern type_t *gettyp(tspec_t);
182 extern type_t *block_dup_type(const type_t *);
183 extern type_t *expr_dup_type(const type_t *);
184 extern type_t *expr_unqualified_type(const type_t *);
185 extern bool is_incomplete(const type_t *);
186 extern void add_storage_class(scl_t);
187 extern void add_type(type_t *);
188 extern void add_qualifier(tqual_t);
189 extern void addpacked(void);
190 extern void add_attr_used(void);
191 extern void begin_declaration_level(declaration_kind);
192 extern void end_declaration_level(void);
193 extern void setasm(void);
194 extern void begin_type(void);
195 extern void end_type(void);
196 extern int length_in_bits(const type_t *, const char *);
197 extern unsigned int alignment_in_bits(const type_t *);
198 extern sym_t *lnklst(sym_t *, sym_t *);
199 extern void check_type(sym_t *);
200 extern sym_t *declarator_1_struct_union(sym_t *);
201 extern sym_t *bitfield(sym_t *, int);
202 extern qual_ptr *merge_qualified_pointer(qual_ptr *, qual_ptr *);
203 extern sym_t *add_pointer(sym_t *, qual_ptr *);
204 extern sym_t *add_array(sym_t *, bool, int);
205 extern sym_t *add_function(sym_t *, sym_t *);
206 extern void check_function_definition(sym_t *, bool);
207 extern sym_t *declarator_name(sym_t *);
208 extern sym_t *old_style_function_name(sym_t *);
209 extern type_t *mktag(sym_t *, tspec_t, bool, bool);
210 extern const char *storage_class_name(scl_t);
211 extern type_t *complete_tag_struct_or_union(type_t *, sym_t *);
212 extern type_t *complete_tag_enum(type_t *, sym_t *);
213 extern sym_t *enumeration_constant(sym_t *, int, bool);
214 extern void declare(sym_t *, bool, sbuf_t *);
215 extern void copy_usage_info(sym_t *, sym_t *);
216 extern bool check_redeclaration(sym_t *, bool *);
217 extern bool eqptrtype(const type_t *, const type_t *, bool);
218 extern bool eqtype(const type_t *, const type_t *, bool, bool, bool *);
219 extern void complete_type(sym_t *, sym_t *);
220 extern sym_t *declare_argument(sym_t *, bool);
221 extern void check_func_lint_directives(void);
222 extern void check_func_old_style_arguments(void);
223
224 extern void declare_local(sym_t *, bool);
225 extern sym_t *abstract_name(void);
226 extern void global_clean_up(void);
227 extern sym_t *declare_1_abstract(sym_t *);
228 extern void check_size(sym_t *);
229 extern void mark_as_set(sym_t *);
230 extern void mark_as_used(sym_t *, bool, bool);
231 extern void check_usage(dinfo_t *);
232 extern void check_usage_sym(bool, sym_t *);
233 extern void check_global_symbols(void);
234 extern void print_previous_declaration(int, const sym_t *);
235 extern int to_int_constant(tnode_t *, bool);
236
237 /*
238 * tree.c
239 */
240 extern const tnode_t *before_conversion(const tnode_t *);
241 extern type_t *block_derive_type(type_t *, tspec_t);
242 extern type_t *expr_derive_type(type_t *, tspec_t);
243 extern bool is_compiler_builtin(const char *);
244 extern tnode_t *build_constant(type_t *, val_t *);
245 extern tnode_t *build_name(sym_t *, bool);
246 extern tnode_t *build_string(strg_t *);
247 extern tnode_t *build_generic_selection(const tnode_t *,
248 struct generic_association *);
249
250 extern tnode_t *build_binary(tnode_t *, op_t, bool, tnode_t *);
251 extern tnode_t *build_unary(op_t, bool, tnode_t *);
252 extern tnode_t *build_member_access(tnode_t *, op_t, bool, sbuf_t *);
253 extern tnode_t *cconv(tnode_t *);
254 extern bool is_typeok_bool_compares_with_zero(const tnode_t *);
255 extern bool typeok(op_t, int, const tnode_t *, const tnode_t *);
256 extern tnode_t *promote(op_t, bool, tnode_t *);
257 extern tnode_t *convert(op_t, int, type_t *, tnode_t *);
258 extern void convert_constant(op_t, int, const type_t *, val_t *, val_t *);
259 extern tnode_t *build_sizeof(const type_t *);
260 extern tnode_t *build_offsetof(const type_t *, const sym_t *);
261 extern tnode_t *build_alignof(const type_t *);
262 extern tnode_t *cast(tnode_t *, type_t *);
263 extern tnode_t *build_function_argument(tnode_t *, tnode_t *);
264 extern tnode_t *build_function_call(tnode_t *, bool, tnode_t *);
265 extern val_t *constant(tnode_t *, bool);
266 extern void expr(tnode_t *, bool, bool, bool, bool);
267 extern void check_expr_misc(const tnode_t *, bool, bool, bool,
268 bool, bool, bool);
269 extern bool constant_addr(const tnode_t *, const sym_t **, ptrdiff_t *);
270 extern strg_t *cat_strings(strg_t *, strg_t *);
271 extern unsigned int type_size_in_bits(const type_t *);
272
273 void begin_statement_expr(void);
274 void do_statement_expr(tnode_t *);
275 tnode_t *end_statement_expr(void);
276
277 /*
278 * func.c
279 */
280 extern sym_t *funcsym;
281 extern bool reached;
282 extern bool warn_about_unreachable;
283 extern bool seen_fallthrough;
284 extern int nargusg;
285 extern pos_t argsused_pos;
286 extern int nvararg;
287 extern pos_t vapos;
288 extern int printflike_argnum;
289 extern pos_t printflike_pos;
290 extern int scanflike_argnum;
291 extern pos_t scanflike_pos;
292 extern bool constcond_flag;
293 extern bool llibflg;
294 extern int lwarn;
295 extern bool bitfieldtype_ok;
296 extern bool plibflg;
297 extern bool quadflg;
298
299 extern void begin_control_statement(control_statement_kind);
300 extern void end_control_statement(control_statement_kind);
301 extern void check_statement_reachable(void);
302 extern void funcdef(sym_t *);
303 extern void funcend(void);
304 extern void named_label(sym_t *);
305 extern void case_label(tnode_t *);
306 extern void default_label(void);
307 extern void if1(tnode_t *);
308 extern void if2(void);
309 extern void if3(bool);
310 extern void switch1(tnode_t *);
311 extern void switch2(void);
312 extern void while1(tnode_t *);
313 extern void while2(void);
314 extern void do1(void);
315 extern void do2(tnode_t *);
316 extern void for1(tnode_t *, tnode_t *, tnode_t *);
317 extern void for2(void);
318 extern void do_goto(sym_t *);
319 extern void do_continue(void);
320 extern void do_break(void);
321 extern void do_return(bool, tnode_t *);
322 extern void global_clean_up_decl(bool);
323 extern void argsused(int);
324 extern void constcond(int);
325 extern void fallthru(int);
326 extern void not_reached(int);
327 extern void lintlib(int);
328 extern void linted(int);
329 extern void varargs(int);
330 extern void printflike(int);
331 extern void scanflike(int);
332 extern void protolib(int);
333 extern void longlong(int);
334 extern void bitfieldtype(int);
335
336 /*
337 * init.c
338 */
339 extern void begin_initialization(sym_t *);
340 extern void end_initialization(void);
341 extern sym_t **current_initsym(void);
342
343 extern void init_rbrace(void);
344 extern void init_lbrace(void);
345 extern void init_expr(tnode_t *);
346 extern void begin_designation(void);
347 extern void add_designator_member(sbuf_t *);
348 extern void add_designator_subscript(range_t);
349
350 /*
351 * emit.c
352 */
353 extern void outtype(const type_t *);
354 extern void outsym(const sym_t *, scl_t, def_t);
355 extern void outfdef(const sym_t *, const pos_t *, bool, bool,
356 const sym_t *);
357 extern void outcall(const tnode_t *, bool, bool);
358 extern void outusg(const sym_t *);
359
360 /*
361 * lex.c
362 */
363 extern int lex_name(const char *, size_t);
364 extern int lex_integer_constant(const char *, size_t, int);
365 extern int lex_floating_constant(const char *, size_t);
366 extern int lex_operator(int, op_t);
367 extern int lex_string(void);
368 extern int lex_wide_string(void);
369 extern int lex_character_constant(void);
370 extern int lex_wide_character_constant(void);
371 extern void lex_directive(const char *);
372 extern void lex_next_line(void);
373 extern void lex_comment(void);
374 extern void lex_slash_slash_comment(void);
375 extern void lex_unknown_character(int);
376 extern int lex_input(void);
377
378 /*
379 * ckbool.c
380 */
381 extern bool typeok_scalar_strict_bool(op_t, const mod_t *, int,
382 const tnode_t *, const tnode_t *);
383 extern bool fallback_symbol_strict_bool(sym_t *);
384
385 /*
386 * ckctype.c
387 */
388 extern void check_ctype_function_call(const tnode_t *, const tnode_t *);
389 extern void check_ctype_macro_invocation(const tnode_t *, const tnode_t *);
390
391 /*
392 * ckgetopt.c
393 */
394 extern void check_getopt_begin_while(const tnode_t *);
395 extern void check_getopt_begin_switch(void);
396 extern void check_getopt_case_label(int64_t);
397 extern void check_getopt_end_switch(void);
398 extern void check_getopt_end_while(void);
399