externs1.h revision 1.107 1 /* $NetBSD: externs1.h,v 1.107 2021/04/18 08:52:04 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 dflag;
42 extern bool eflag;
43 extern bool Fflag;
44 extern bool gflag;
45 extern bool hflag;
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 Pflag;
56
57 extern void norecover(void);
58
59 /*
60 * cgram.y
61 */
62 extern int block_level;
63 extern int mem_block_level;
64 extern int yydebug;
65
66 extern int yyerror(const char *);
67 extern int yyparse(void);
68
69 /*
70 * scan.l
71 */
72 extern bool attron;
73 extern pos_t curr_pos;
74 extern pos_t csrc_pos;
75 extern bool in_system_header;
76 extern symt_t symtyp;
77 extern FILE *yyin;
78 extern uint64_t qbmasks[], qlmasks[], qumasks[];
79
80 extern void initscan(void);
81 extern int msb(int64_t, tspec_t, int);
82 extern int64_t xsign(int64_t, tspec_t, int);
83 extern void clear_warn_flags(void);
84 extern sym_t *getsym(sbuf_t *);
85 extern void cleanup(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 *getblk(size_t);
105 extern void *getlblk(size_t, size_t);
106 extern void freeblk(void);
107 extern void freelblk(int);
108
109 extern void *expr_zalloc(size_t);
110 extern tnode_t *expr_zalloc_tnode(void);
111 extern void expr_free_all(void);
112 extern struct memory_block *expr_save_memory(void);
113 extern void expr_restore_memory(struct memory_block *);
114
115 /*
116 * err.c
117 */
118 extern int nerr;
119 extern int sytxerr;
120 extern const char *const msgs[];
121
122 extern void msglist(void);
123 extern void error_at(int, pos_t, ...);
124 extern void warning_at(int, pos_t, ...);
125 extern void message_at(int, pos_t, ...);
126 extern void error(int, ...);
127 extern void warning(int, ...);
128 extern void message(int, ...);
129 extern void gnuism(int, ...);
130 extern void c99ism(int, ...);
131 extern void c11ism(int, ...);
132 extern void internal_error(const char *, int, const char *, ...)
133 __attribute__((__noreturn__,__format__(__printf__, 3, 4)));
134 extern void assert_failed(const char *, int, const char *, const char *)
135 __attribute__((__noreturn__));
136 extern void update_location(const char *, int, bool, bool);
137
138 /*
139 * decl.c
140 */
141 extern dinfo_t *dcs;
142 extern const char *unnamed;
143 extern int enumval;
144
145 extern void initdecl(void);
146 extern type_t *gettyp(tspec_t);
147 extern type_t *dup_type(const type_t *);
148 extern type_t *expr_dup_type(const type_t *);
149 extern bool is_incomplete(const type_t *);
150 extern void setcomplete(type_t *, bool);
151 extern void add_storage_class(scl_t);
152 extern void add_type(type_t *);
153 extern void add_qualifier(tqual_t);
154 extern void addpacked(void);
155 extern void add_attr_used(void);
156 extern void begin_declaration_level(scl_t);
157 extern void end_declaration_level(void);
158 extern void setasm(void);
159 extern void clrtyp(void);
160 extern void deftyp(void);
161 extern int length(const type_t *, const char *);
162 extern int alignment_in_bits(const type_t *);
163 extern sym_t *lnklst(sym_t *, sym_t *);
164 extern void check_type(sym_t *);
165 extern sym_t *declarator_1_struct_union(sym_t *);
166 extern sym_t *bitfield(sym_t *, int);
167 extern pqinf_t *merge_pointers_and_qualifiers(pqinf_t *, pqinf_t *);
168 extern sym_t *add_pointer(sym_t *, pqinf_t *);
169 extern sym_t *add_array(sym_t *, bool, int);
170 extern sym_t *add_function(sym_t *, sym_t *);
171 extern void check_function_definition(sym_t *, bool);
172 extern sym_t *declarator_name(sym_t *);
173 extern sym_t *old_style_function_name(sym_t *);
174 extern type_t *mktag(sym_t *, tspec_t, bool, bool);
175 extern const char *storage_class_name(scl_t);
176 extern type_t *complete_tag_struct_or_union(type_t *, sym_t *);
177 extern type_t *complete_tag_enum(type_t *, sym_t *);
178 extern sym_t *enumeration_constant(sym_t *, int, bool);
179 extern void declare(sym_t *, bool, sbuf_t *);
180 extern void copy_usage_info(sym_t *, sym_t *);
181 extern bool check_redeclaration(sym_t *, bool *);
182 extern bool eqptrtype(const type_t *, const type_t *, bool);
183 extern bool eqtype(const type_t *, const type_t *, bool, bool, bool *);
184 extern void complete_type(sym_t *, sym_t *);
185 extern sym_t *declare_argument(sym_t *, bool);
186 extern void check_func_lint_directives(void);
187 extern void check_func_old_style_arguments(void);
188
189 extern void declare_local(sym_t *, bool);
190 extern sym_t *abstract_name(void);
191 extern void global_clean_up(void);
192 extern sym_t *declare_1_abstract(sym_t *);
193 extern void check_size(sym_t *);
194 extern void mark_as_set(sym_t *);
195 extern void mark_as_used(sym_t *, bool, bool);
196 extern void check_usage(dinfo_t *);
197 extern void check_usage_sym(bool, sym_t *);
198 extern void check_global_symbols(void);
199 extern void print_previous_declaration(int, const sym_t *);
200 extern int to_int_constant(tnode_t *, bool);
201
202 /*
203 * tree.c
204 */
205 extern const tnode_t *before_conversion(const tnode_t *);
206 extern type_t *derive_type(type_t *, tspec_t);
207 extern type_t *expr_derive_type(type_t *, tspec_t);
208 extern tnode_t *expr_new_constant(type_t *, val_t *);
209 extern tnode_t *new_name_node(sym_t *, int);
210 extern tnode_t *new_string_node(strg_t *);
211 extern sym_t *struct_or_union_member(tnode_t *, op_t, sym_t *);
212 extern tnode_t *build(op_t, tnode_t *, tnode_t *);
213 extern tnode_t *cconv(tnode_t *);
214 extern bool is_typeok_bool_operand(const tnode_t *);
215 extern bool typeok(op_t, int, const tnode_t *, const tnode_t *);
216 extern tnode_t *promote(op_t, bool, tnode_t *);
217 extern tnode_t *convert(op_t, int, type_t *, tnode_t *);
218 extern void convert_constant(op_t, int, const type_t *, val_t *, val_t *);
219 extern tnode_t *build_sizeof(const type_t *);
220 extern tnode_t *build_offsetof(const type_t *, const sym_t *);
221 extern tnode_t *build_alignof(const type_t *);
222 extern tnode_t *cast(tnode_t *, type_t *);
223 extern tnode_t *new_function_argument_node(tnode_t *, tnode_t *);
224 extern tnode_t *new_function_call_node(tnode_t *, tnode_t *);
225 extern val_t *constant(tnode_t *, bool);
226 extern void expr(tnode_t *, bool, bool, bool, bool);
227 extern void check_expr_misc(const tnode_t *, bool, bool, bool,
228 bool, bool, bool);
229 extern bool constant_addr(const tnode_t *, const sym_t **, ptrdiff_t *);
230 extern strg_t *cat_strings(strg_t *, strg_t *);
231 extern int64_t type_size_in_bits(const type_t *);
232 #ifdef DEBUG
233 extern void debug_node(const tnode_t *, int);
234 #else
235 #define debug_node(tn, indent) do { } while (false)
236 #endif
237
238 /*
239 * func.c
240 */
241 extern sym_t *funcsym;
242 extern bool reached;
243 extern bool warn_about_unreachable;
244 extern bool seen_fallthrough;
245 extern int nargusg;
246 extern pos_t argsused_pos;
247 extern int nvararg;
248 extern pos_t vapos;
249 extern int printflike_argnum;
250 extern pos_t printflike_pos;
251 extern int scanflike_argnum;
252 extern pos_t scanflike_pos;
253 extern bool constcond_flag;
254 extern bool llibflg;
255 extern int lwarn;
256 extern bool bitfieldtype_ok;
257 extern bool plibflg;
258 extern bool quadflg;
259
260 extern void begin_control_statement(control_statement_kind);
261 extern void end_control_statement(control_statement_kind);
262 extern void check_statement_reachable(void);
263 extern void funcdef(sym_t *);
264 extern void funcend(void);
265 extern void named_label(sym_t *);
266 extern void case_label(tnode_t *);
267 extern void default_label(void);
268 extern void if1(tnode_t *);
269 extern void if2(void);
270 extern void if3(bool);
271 extern void switch1(tnode_t *);
272 extern void switch2(void);
273 extern void while1(tnode_t *);
274 extern void while2(void);
275 extern void do1(void);
276 extern void do2(tnode_t *);
277 extern void for1(tnode_t *, tnode_t *, tnode_t *);
278 extern void for2(void);
279 extern void do_goto(sym_t *);
280 extern void do_continue(void);
281 extern void do_break(void);
282 extern void do_return(tnode_t *);
283 extern void global_clean_up_decl(bool);
284 extern void argsused(int);
285 extern void constcond(int);
286 extern void fallthru(int);
287 extern void not_reached(int);
288 extern void lintlib(int);
289 extern void linted(int);
290 extern void varargs(int);
291 extern void printflike(int);
292 extern void scanflike(int);
293 extern void protolib(int);
294 extern void longlong(int);
295 extern void bitfieldtype(int);
296
297 /*
298 * init.c
299 */
300 extern void begin_initialization(sym_t *);
301 extern void end_initialization(void);
302 extern sym_t **current_initsym(void);
303
304 extern void init_rbrace(void);
305 extern void init_lbrace(void);
306 extern void init_expr(tnode_t *);
307 extern void add_designator_member(sbuf_t *);
308 extern void add_designator_subscript(range_t);
309
310 /*
311 * emit.c
312 */
313 extern void outtype(const type_t *);
314 extern const char *ttos(const type_t *);
315 extern void outsym(const sym_t *, scl_t, def_t);
316 extern void outfdef(const sym_t *, const pos_t *, bool, bool,
317 const sym_t *);
318 extern void outcall(const tnode_t *, bool, bool);
319 extern void outusg(const sym_t *);
320
321 /*
322 * lex.c
323 */
324 extern int lex_name(const char *, size_t);
325 extern int lex_integer_constant(const char *, size_t, int);
326 extern int lex_floating_constant(const char *, size_t);
327 extern int lex_operator(int, op_t);
328 extern int lex_string(void);
329 extern int lex_wide_string(void);
330 extern int lex_character_constant(void);
331 extern int lex_wide_character_constant(void);
332 extern void lex_directive(const char *);
333 extern void lex_next_line(void);
334 extern void lex_comment(void);
335 extern void lex_slash_slash_comment(void);
336 extern void lex_unknown_character(int);
337 extern int lex_input(void);
338
339 /*
340 * print.c
341 */
342 extern char *print_tnode(char *, size_t, const tnode_t *);
343
344 /*
345 * ckbool.c
346 */
347 extern bool typeok_scalar_strict_bool(op_t, const mod_t *, int,
348 const tnode_t *, const tnode_t *);
349 extern bool fallback_symbol_strict_bool(sym_t *);
350
351 /*
352 * ckctype.c
353 */
354 extern void check_ctype_function_call(const tnode_t *, const tnode_t *);
355 extern void check_ctype_macro_invocation(const tnode_t *, const tnode_t *);
356
357 /*
358 * ckgetopt.c
359 */
360 extern void check_getopt_begin_while(const tnode_t *);
361 extern void check_getopt_begin_switch(void);
362 extern void check_getopt_case_label(int64_t);
363 extern void check_getopt_end_switch(void);
364 extern void check_getopt_end_while(void);
365