externs1.h revision 1.149 1 /* $NetBSD: externs1.h,v 1.149 2022/03/01 00:17:12 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 c11flag;
41 extern bool eflag;
42 extern bool Fflag;
43 extern bool gflag;
44 extern bool hflag;
45 extern bool pflag;
46 extern bool rflag;
47 extern bool sflag;
48 extern bool tflag;
49 extern bool uflag;
50 extern bool vflag;
51 extern bool yflag;
52 extern bool wflag;
53 extern bool zflag;
54 extern bool Sflag;
55 extern bool Tflag;
56 extern bool Pflag;
57
58 extern void norecover(void);
59
60 /*
61 * cgram.y
62 */
63 extern int block_level;
64 extern size_t mem_block_level;
65 extern int yydebug;
66
67 extern int yyerror(const char *);
68 extern int yyparse(void);
69
70 /*
71 * scan.l
72 */
73 extern bool in_gcc_attribute;
74 extern pos_t curr_pos;
75 extern pos_t csrc_pos;
76 extern bool in_system_header;
77 extern symt_t symtyp;
78 extern FILE *yyin;
79
80 extern void initscan(void);
81 extern int64_t convert_integer(int64_t, tspec_t, unsigned int);
82 extern void clear_warn_flags(void);
83 extern sym_t *getsym(sbuf_t *);
84 extern void cleanup(void);
85 extern sym_t *pushdown(const sym_t *);
86 extern sym_t *mktempsym(type_t *);
87 extern void rmsym(sym_t *);
88 extern void rmsyms(sym_t *);
89 extern void inssym(int, sym_t *);
90 extern void freeyyv(void *, int);
91 extern int yylex(void);
92
93 /*
94 * mem1.c
95 */
96 extern const char *record_filename(const char *, size_t);
97 extern int get_filename_id(const char *);
98 extern void add_directory_replacement(char *);
99 extern const char *transform_filename(const char *, size_t);
100
101 extern void initmem(void);
102
103 extern void *block_zero_alloc(size_t);
104 extern void *level_zero_alloc(size_t, size_t);
105 extern void level_free_all(size_t);
106
107 extern void *expr_zero_alloc(size_t);
108 extern tnode_t *expr_alloc_tnode(void);
109 extern void expr_free_all(void);
110 extern struct memory_block *expr_save_memory(void);
111 extern void expr_restore_memory(struct memory_block *);
112
113 /*
114 * debug.c
115 */
116
117 #ifdef DEBUG
118 const char *scl_name(scl_t);
119 const char *symt_name(symt_t);
120 const char *tqual_name(tqual_t);
121 void debug_node(const tnode_t *);
122 void debug_sym(const sym_t *);
123 void debug_symtab(void);
124 void debug_printf(const char *fmt, ...) __printflike(1, 2);
125 void debug_print_indent(void);
126 void debug_indent_inc(void);
127 void debug_indent_dec(void);
128 void debug_enter(const char *);
129 void debug_step(const char *fmt, ...) __printflike(1, 2);
130 void debug_leave(const char *);
131 #define debug_enter() (debug_enter)(__func__)
132 #define debug_leave() (debug_leave)(__func__)
133 #else
134 #define debug_noop() do { } while (false)
135 #define debug_node(tn) debug_noop()
136 #define debug_printf(...) debug_noop()
137 #define debug_print_indent() debug_noop()
138 #define debug_indent_inc() debug_noop()
139 #define debug_indent_dec() debug_noop()
140 #define debug_enter() debug_noop()
141 #define debug_step(...) debug_noop()
142 #define debug_leave() debug_noop()
143 #endif
144
145 /*
146 * err.c
147 */
148 extern int nerr;
149 extern int sytxerr;
150 extern const char *const msgs[];
151
152 extern void msglist(void);
153 extern void error_at(int, const pos_t *, ...);
154 extern void warning_at(int, const pos_t *, ...);
155 extern void message_at(int, const pos_t *, ...);
156 extern void error(int, ...);
157 extern void warning(int, ...);
158 extern void gnuism(int, ...);
159 extern void c99ism(int, ...);
160 extern void c11ism(int, ...);
161 extern void internal_error(const char *, int, const char *, ...)
162 __attribute__((__noreturn__,__format__(__printf__, 3, 4)));
163 extern void assert_failed(const char *, int, const char *, const char *)
164 __attribute__((__noreturn__));
165 extern void update_location(const char *, int, bool, bool);
166
167 /*
168 * decl.c
169 */
170 extern dinfo_t *dcs;
171 extern const char *unnamed;
172 extern int enumval;
173
174 extern void initdecl(void);
175 extern type_t *gettyp(tspec_t);
176 extern type_t *block_dup_type(const type_t *);
177 extern type_t *expr_dup_type(const type_t *);
178 extern type_t *expr_unqualified_type(const type_t *);
179 extern bool is_incomplete(const type_t *);
180 extern void setcomplete(type_t *, bool);
181 extern void add_storage_class(scl_t);
182 extern void add_type(type_t *);
183 extern void add_qualifier(tqual_t);
184 extern void addpacked(void);
185 extern void add_attr_used(void);
186 extern void begin_declaration_level(scl_t);
187 extern void end_declaration_level(void);
188 extern void setasm(void);
189 extern void begin_type(void);
190 extern void end_type(void);
191 extern int length(const type_t *, const char *);
192 extern unsigned int alignment_in_bits(const type_t *);
193 extern sym_t *lnklst(sym_t *, sym_t *);
194 extern void check_type(sym_t *);
195 extern sym_t *declarator_1_struct_union(sym_t *);
196 extern sym_t *bitfield(sym_t *, int);
197 extern qual_ptr *merge_qualified_pointer(qual_ptr *, qual_ptr *);
198 extern sym_t *add_pointer(sym_t *, qual_ptr *);
199 extern sym_t *add_array(sym_t *, bool, int);
200 extern sym_t *add_function(sym_t *, sym_t *);
201 extern void check_function_definition(sym_t *, bool);
202 extern sym_t *declarator_name(sym_t *);
203 extern sym_t *old_style_function_name(sym_t *);
204 extern type_t *mktag(sym_t *, tspec_t, bool, bool);
205 extern const char *storage_class_name(scl_t);
206 extern type_t *complete_tag_struct_or_union(type_t *, sym_t *);
207 extern type_t *complete_tag_enum(type_t *, sym_t *);
208 extern sym_t *enumeration_constant(sym_t *, int, bool);
209 extern void declare(sym_t *, bool, sbuf_t *);
210 extern void copy_usage_info(sym_t *, sym_t *);
211 extern bool check_redeclaration(sym_t *, bool *);
212 extern bool eqptrtype(const type_t *, const type_t *, bool);
213 extern bool eqtype(const type_t *, const type_t *, bool, bool, bool *);
214 extern void complete_type(sym_t *, sym_t *);
215 extern sym_t *declare_argument(sym_t *, bool);
216 extern void check_func_lint_directives(void);
217 extern void check_func_old_style_arguments(void);
218
219 extern void declare_local(sym_t *, bool);
220 extern sym_t *abstract_name(void);
221 extern void global_clean_up(void);
222 extern sym_t *declare_1_abstract(sym_t *);
223 extern void check_size(sym_t *);
224 extern void mark_as_set(sym_t *);
225 extern void mark_as_used(sym_t *, bool, bool);
226 extern void check_usage(dinfo_t *);
227 extern void check_usage_sym(bool, sym_t *);
228 extern void check_global_symbols(void);
229 extern void print_previous_declaration(int, const sym_t *);
230 extern int to_int_constant(tnode_t *, bool);
231
232 /*
233 * tree.c
234 */
235 extern const tnode_t *before_conversion(const tnode_t *);
236 extern type_t *block_derive_type(type_t *, tspec_t);
237 extern type_t *expr_derive_type(type_t *, tspec_t);
238 extern bool is_compiler_builtin(const char *);
239 extern tnode_t *build_constant(type_t *, val_t *);
240 extern tnode_t *build_name(sym_t *, bool);
241 extern tnode_t *build_string(strg_t *);
242 extern tnode_t *build_generic_selection(const tnode_t *,
243 struct generic_association *);
244
245 extern tnode_t *build_binary(tnode_t *, op_t, bool, tnode_t *);
246 extern tnode_t *build_unary(op_t, bool, tnode_t *);
247 extern tnode_t *build_member_access(tnode_t *, op_t, bool, sbuf_t *);
248 extern tnode_t *cconv(tnode_t *);
249 extern bool is_typeok_bool_operand(const tnode_t *);
250 extern bool typeok(op_t, int, const tnode_t *, const tnode_t *);
251 extern tnode_t *promote(op_t, bool, tnode_t *);
252 extern tnode_t *convert(op_t, int, type_t *, tnode_t *);
253 extern void convert_constant(op_t, int, const type_t *, val_t *, val_t *);
254 extern tnode_t *build_sizeof(const type_t *);
255 extern tnode_t *build_offsetof(const type_t *, const sym_t *);
256 extern tnode_t *build_alignof(const type_t *);
257 extern tnode_t *cast(tnode_t *, type_t *);
258 extern tnode_t *build_function_argument(tnode_t *, tnode_t *);
259 extern tnode_t *build_function_call(tnode_t *, bool, tnode_t *);
260 extern val_t *constant(tnode_t *, bool);
261 extern void expr(tnode_t *, bool, bool, bool, bool);
262 extern void check_expr_misc(const tnode_t *, bool, bool, bool,
263 bool, bool, bool);
264 extern bool constant_addr(const tnode_t *, const sym_t **, ptrdiff_t *);
265 extern strg_t *cat_strings(strg_t *, strg_t *);
266 extern unsigned int type_size_in_bits(const type_t *);
267
268 void begin_statement_expr(void);
269 void do_statement_expr(tnode_t *);
270 tnode_t *end_statement_expr(void);
271
272 /*
273 * func.c
274 */
275 extern sym_t *funcsym;
276 extern bool reached;
277 extern bool warn_about_unreachable;
278 extern bool seen_fallthrough;
279 extern int nargusg;
280 extern pos_t argsused_pos;
281 extern int nvararg;
282 extern pos_t vapos;
283 extern int printflike_argnum;
284 extern pos_t printflike_pos;
285 extern int scanflike_argnum;
286 extern pos_t scanflike_pos;
287 extern bool constcond_flag;
288 extern bool llibflg;
289 extern int lwarn;
290 extern bool bitfieldtype_ok;
291 extern bool plibflg;
292 extern bool quadflg;
293
294 extern void begin_control_statement(control_statement_kind);
295 extern void end_control_statement(control_statement_kind);
296 extern void check_statement_reachable(void);
297 extern void funcdef(sym_t *);
298 extern void funcend(void);
299 extern void named_label(sym_t *);
300 extern void case_label(tnode_t *);
301 extern void default_label(void);
302 extern void if1(tnode_t *);
303 extern void if2(void);
304 extern void if3(bool);
305 extern void switch1(tnode_t *);
306 extern void switch2(void);
307 extern void while1(tnode_t *);
308 extern void while2(void);
309 extern void do1(void);
310 extern void do2(tnode_t *);
311 extern void for1(tnode_t *, tnode_t *, tnode_t *);
312 extern void for2(void);
313 extern void do_goto(sym_t *);
314 extern void do_continue(void);
315 extern void do_break(void);
316 extern void do_return(bool, tnode_t *);
317 extern void global_clean_up_decl(bool);
318 extern void argsused(int);
319 extern void constcond(int);
320 extern void fallthru(int);
321 extern void not_reached(int);
322 extern void lintlib(int);
323 extern void linted(int);
324 extern void varargs(int);
325 extern void printflike(int);
326 extern void scanflike(int);
327 extern void protolib(int);
328 extern void longlong(int);
329 extern void bitfieldtype(int);
330
331 /*
332 * init.c
333 */
334 extern void begin_initialization(sym_t *);
335 extern void end_initialization(void);
336 extern sym_t **current_initsym(void);
337
338 extern void init_rbrace(void);
339 extern void init_lbrace(void);
340 extern void init_expr(tnode_t *);
341 extern void begin_designation(void);
342 extern void add_designator_member(sbuf_t *);
343 extern void add_designator_subscript(range_t);
344
345 /*
346 * emit.c
347 */
348 extern void outtype(const type_t *);
349 extern void outsym(const sym_t *, scl_t, def_t);
350 extern void outfdef(const sym_t *, const pos_t *, bool, bool,
351 const sym_t *);
352 extern void outcall(const tnode_t *, bool, bool);
353 extern void outusg(const sym_t *);
354
355 /*
356 * lex.c
357 */
358 extern int lex_name(const char *, size_t);
359 extern int lex_integer_constant(const char *, size_t, int);
360 extern int lex_floating_constant(const char *, size_t);
361 extern int lex_operator(int, op_t);
362 extern int lex_string(void);
363 extern int lex_wide_string(void);
364 extern int lex_character_constant(void);
365 extern int lex_wide_character_constant(void);
366 extern void lex_directive(const char *);
367 extern void lex_next_line(void);
368 extern void lex_comment(void);
369 extern void lex_slash_slash_comment(void);
370 extern void lex_unknown_character(int);
371 extern int lex_input(void);
372
373 /*
374 * ckbool.c
375 */
376 extern bool typeok_scalar_strict_bool(op_t, const mod_t *, int,
377 const tnode_t *, const tnode_t *);
378 extern bool fallback_symbol_strict_bool(sym_t *);
379
380 /*
381 * ckctype.c
382 */
383 extern void check_ctype_function_call(const tnode_t *, const tnode_t *);
384 extern void check_ctype_macro_invocation(const tnode_t *, const tnode_t *);
385
386 /*
387 * ckgetopt.c
388 */
389 extern void check_getopt_begin_while(const tnode_t *);
390 extern void check_getopt_begin_switch(void);
391 extern void check_getopt_case_label(int64_t);
392 extern void check_getopt_end_switch(void);
393 extern void check_getopt_end_while(void);
394