externs1.h revision 1.144 1 /* $NetBSD: externs1.h,v 1.144 2021/12/21 21:04:08 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 int 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 *getblk(size_t);
104 extern void *getlblk(size_t, size_t);
105 extern void freeblk(void);
106 extern void freelblk(int);
107
108 extern void *expr_zalloc(size_t);
109 extern tnode_t *expr_zalloc_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 void debug_node(const tnode_t *);
120 void debug_printf(const char *fmt, ...) __printflike(1, 2);
121 void debug_print_indent(void);
122 void debug_indent_inc(void);
123 void debug_indent_dec(void);
124 void debug_enter(const char *);
125 void debug_step(const char *fmt, ...) __printflike(1, 2);
126 void debug_leave(const char *);
127 #define debug_enter() (debug_enter)(__func__)
128 #define debug_leave() (debug_leave)(__func__)
129 #else
130 #define debug_noop() do { } while (false)
131 #define debug_node(tn) debug_noop()
132 #define debug_printf(...) debug_noop()
133 #define debug_print_indent() debug_noop()
134 #define debug_indent_inc() debug_noop()
135 #define debug_indent_dec() debug_noop()
136 #define debug_enter() debug_noop()
137 #define debug_step(...) debug_noop()
138 #define debug_leave() debug_noop()
139 #endif
140
141 /*
142 * err.c
143 */
144 extern int nerr;
145 extern int sytxerr;
146 extern const char *const msgs[];
147
148 extern void msglist(void);
149 extern void error_at(int, const pos_t *, ...);
150 extern void warning_at(int, const pos_t *, ...);
151 extern void message_at(int, const pos_t *, ...);
152 extern void error(int, ...);
153 extern void warning(int, ...);
154 extern void gnuism(int, ...);
155 extern void c99ism(int, ...);
156 extern void c11ism(int, ...);
157 extern void internal_error(const char *, int, const char *, ...)
158 __attribute__((__noreturn__,__format__(__printf__, 3, 4)));
159 extern void assert_failed(const char *, int, const char *, const char *)
160 __attribute__((__noreturn__));
161 extern void update_location(const char *, int, bool, bool);
162
163 /*
164 * decl.c
165 */
166 extern dinfo_t *dcs;
167 extern const char *unnamed;
168 extern int enumval;
169
170 extern void initdecl(void);
171 extern type_t *gettyp(tspec_t);
172 extern type_t *dup_type(const type_t *);
173 extern type_t *expr_dup_type(const type_t *);
174 extern type_t *expr_unqualified_type(const type_t *);
175 extern bool is_incomplete(const type_t *);
176 extern void setcomplete(type_t *, bool);
177 extern void add_storage_class(scl_t);
178 extern void add_type(type_t *);
179 extern void add_qualifier(tqual_t);
180 extern void addpacked(void);
181 extern void add_attr_used(void);
182 extern void begin_declaration_level(scl_t);
183 extern void end_declaration_level(void);
184 extern void setasm(void);
185 extern void begin_type(void);
186 extern void end_type(void);
187 extern int length(const type_t *, const char *);
188 extern unsigned int alignment_in_bits(const type_t *);
189 extern sym_t *lnklst(sym_t *, sym_t *);
190 extern void check_type(sym_t *);
191 extern sym_t *declarator_1_struct_union(sym_t *);
192 extern sym_t *bitfield(sym_t *, int);
193 extern qual_ptr *merge_qualified_pointer(qual_ptr *, qual_ptr *);
194 extern sym_t *add_pointer(sym_t *, qual_ptr *);
195 extern sym_t *add_array(sym_t *, bool, int);
196 extern sym_t *add_function(sym_t *, sym_t *);
197 extern void check_function_definition(sym_t *, bool);
198 extern sym_t *declarator_name(sym_t *);
199 extern sym_t *old_style_function_name(sym_t *);
200 extern type_t *mktag(sym_t *, tspec_t, bool, bool);
201 extern const char *storage_class_name(scl_t);
202 extern type_t *complete_tag_struct_or_union(type_t *, sym_t *);
203 extern type_t *complete_tag_enum(type_t *, sym_t *);
204 extern sym_t *enumeration_constant(sym_t *, int, bool);
205 extern void declare(sym_t *, bool, sbuf_t *);
206 extern void copy_usage_info(sym_t *, sym_t *);
207 extern bool check_redeclaration(sym_t *, bool *);
208 extern bool eqptrtype(const type_t *, const type_t *, bool);
209 extern bool eqtype(const type_t *, const type_t *, bool, bool, bool *);
210 extern void complete_type(sym_t *, sym_t *);
211 extern sym_t *declare_argument(sym_t *, bool);
212 extern void check_func_lint_directives(void);
213 extern void check_func_old_style_arguments(void);
214
215 extern void declare_local(sym_t *, bool);
216 extern sym_t *abstract_name(void);
217 extern void global_clean_up(void);
218 extern sym_t *declare_1_abstract(sym_t *);
219 extern void check_size(sym_t *);
220 extern void mark_as_set(sym_t *);
221 extern void mark_as_used(sym_t *, bool, bool);
222 extern void check_usage(dinfo_t *);
223 extern void check_usage_sym(bool, sym_t *);
224 extern void check_global_symbols(void);
225 extern void print_previous_declaration(int, const sym_t *);
226 extern int to_int_constant(tnode_t *, bool);
227 extern const char *scl_name(scl_t);
228
229 /*
230 * tree.c
231 */
232 extern const tnode_t *before_conversion(const tnode_t *);
233 extern type_t *derive_type(type_t *, tspec_t);
234 extern type_t *expr_derive_type(type_t *, tspec_t);
235 extern bool is_compiler_builtin(const char *);
236 extern tnode_t *build_constant(type_t *, val_t *);
237 extern tnode_t *build_name(sym_t *, bool);
238 extern tnode_t *build_string(strg_t *);
239 extern tnode_t *build_generic_selection(const tnode_t *,
240 struct generic_association *);
241
242 extern tnode_t *build_binary(tnode_t *, op_t, bool, tnode_t *);
243 extern tnode_t *build_unary(op_t, bool, tnode_t *);
244 extern tnode_t *build_member_access(tnode_t *, op_t, bool, sbuf_t *);
245 extern tnode_t *cconv(tnode_t *);
246 extern bool is_typeok_bool_operand(const tnode_t *);
247 extern bool typeok(op_t, int, const tnode_t *, const tnode_t *);
248 extern tnode_t *promote(op_t, bool, tnode_t *);
249 extern tnode_t *convert(op_t, int, type_t *, tnode_t *);
250 extern void convert_constant(op_t, int, const type_t *, val_t *, val_t *);
251 extern tnode_t *build_sizeof(const type_t *);
252 extern tnode_t *build_offsetof(const type_t *, const sym_t *);
253 extern tnode_t *build_alignof(const type_t *);
254 extern tnode_t *cast(tnode_t *, type_t *);
255 extern tnode_t *build_function_argument(tnode_t *, tnode_t *);
256 extern tnode_t *build_function_call(tnode_t *, bool, tnode_t *);
257 extern val_t *constant(tnode_t *, bool);
258 extern void expr(tnode_t *, bool, bool, bool, bool);
259 extern void check_expr_misc(const tnode_t *, bool, bool, bool,
260 bool, bool, bool);
261 extern bool constant_addr(const tnode_t *, const sym_t **, ptrdiff_t *);
262 extern strg_t *cat_strings(strg_t *, strg_t *);
263 extern unsigned int type_size_in_bits(const type_t *);
264
265 /*
266 * func.c
267 */
268 extern sym_t *funcsym;
269 extern bool reached;
270 extern bool warn_about_unreachable;
271 extern bool seen_fallthrough;
272 extern int nargusg;
273 extern pos_t argsused_pos;
274 extern int nvararg;
275 extern pos_t vapos;
276 extern int printflike_argnum;
277 extern pos_t printflike_pos;
278 extern int scanflike_argnum;
279 extern pos_t scanflike_pos;
280 extern bool constcond_flag;
281 extern bool llibflg;
282 extern int lwarn;
283 extern bool bitfieldtype_ok;
284 extern bool plibflg;
285 extern bool quadflg;
286
287 extern void begin_control_statement(control_statement_kind);
288 extern void end_control_statement(control_statement_kind);
289 extern void check_statement_reachable(void);
290 extern void funcdef(sym_t *);
291 extern void funcend(void);
292 extern void named_label(sym_t *);
293 extern void case_label(tnode_t *);
294 extern void default_label(void);
295 extern void if1(tnode_t *);
296 extern void if2(void);
297 extern void if3(bool);
298 extern void switch1(tnode_t *);
299 extern void switch2(void);
300 extern void while1(tnode_t *);
301 extern void while2(void);
302 extern void do1(void);
303 extern void do2(tnode_t *);
304 extern void for1(tnode_t *, tnode_t *, tnode_t *);
305 extern void for2(void);
306 extern void do_goto(sym_t *);
307 extern void do_continue(void);
308 extern void do_break(void);
309 extern void do_return(bool, tnode_t *);
310 extern void global_clean_up_decl(bool);
311 extern void argsused(int);
312 extern void constcond(int);
313 extern void fallthru(int);
314 extern void not_reached(int);
315 extern void lintlib(int);
316 extern void linted(int);
317 extern void varargs(int);
318 extern void printflike(int);
319 extern void scanflike(int);
320 extern void protolib(int);
321 extern void longlong(int);
322 extern void bitfieldtype(int);
323
324 /*
325 * init.c
326 */
327 extern void begin_initialization(sym_t *);
328 extern void end_initialization(void);
329 extern sym_t **current_initsym(void);
330
331 extern void init_rbrace(void);
332 extern void init_lbrace(void);
333 extern void init_expr(tnode_t *);
334 extern void begin_designation(void);
335 extern void add_designator_member(sbuf_t *);
336 extern void add_designator_subscript(range_t);
337
338 /*
339 * emit.c
340 */
341 extern void outtype(const type_t *);
342 extern void outsym(const sym_t *, scl_t, def_t);
343 extern void outfdef(const sym_t *, const pos_t *, bool, bool,
344 const sym_t *);
345 extern void outcall(const tnode_t *, bool, bool);
346 extern void outusg(const sym_t *);
347
348 /*
349 * lex.c
350 */
351 extern int lex_name(const char *, size_t);
352 extern int lex_integer_constant(const char *, size_t, int);
353 extern int lex_floating_constant(const char *, size_t);
354 extern int lex_operator(int, op_t);
355 extern int lex_string(void);
356 extern int lex_wide_string(void);
357 extern int lex_character_constant(void);
358 extern int lex_wide_character_constant(void);
359 extern void lex_directive(const char *);
360 extern void lex_next_line(void);
361 extern void lex_comment(void);
362 extern void lex_slash_slash_comment(void);
363 extern void lex_unknown_character(int);
364 extern int lex_input(void);
365
366 /*
367 * ckbool.c
368 */
369 extern bool typeok_scalar_strict_bool(op_t, const mod_t *, int,
370 const tnode_t *, const tnode_t *);
371 extern bool fallback_symbol_strict_bool(sym_t *);
372
373 /*
374 * ckctype.c
375 */
376 extern void check_ctype_function_call(const tnode_t *, const tnode_t *);
377 extern void check_ctype_macro_invocation(const tnode_t *, const tnode_t *);
378
379 /*
380 * ckgetopt.c
381 */
382 extern void check_getopt_begin_while(const tnode_t *);
383 extern void check_getopt_begin_switch(void);
384 extern void check_getopt_case_label(int64_t);
385 extern void check_getopt_end_switch(void);
386 extern void check_getopt_end_while(void);
387