externs1.h revision 1.155
1 /* $NetBSD: externs1.h,v 1.155 2022/04/16 13:25:27 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 /* 60 * TODO: Replace the old flags with the new expressions, checking in each 61 * case whether the specific condition still makes sense. When lint was 62 * invented in 1995, it did not know about C99 mode, which makes all 63 * conditions involving tflag and sflag suspicious. 64 * 65 * In 1995, gflag meant "C90 plus GCC extensions". That definition needs to 66 * be extended to C99 and later as well to properly match "C99 + GCC" or "C11 67 * + GCC". 68 */ 69 #define tflag (allow_trad && !allow_c90) 70 #define sflag (!allow_trad && !allow_c99) 71 #define Sflag (!!allow_c99) 72 #define c11flag (!!allow_c11) 73 #define gflag (!!allow_gcc) 74 75 extern void norecover(void); 76 77 /* 78 * cgram.y 79 */ 80 extern int block_level; 81 extern size_t mem_block_level; 82 extern int yydebug; 83 84 extern int yyerror(const char *); 85 extern int yyparse(void); 86 87 /* 88 * scan.l 89 */ 90 extern bool in_gcc_attribute; 91 extern pos_t curr_pos; 92 extern pos_t csrc_pos; 93 extern bool in_system_header; 94 extern symt_t symtyp; 95 extern FILE *yyin; 96 97 extern void initscan(void); 98 extern int64_t convert_integer(int64_t, tspec_t, unsigned int); 99 extern void clear_warn_flags(void); 100 extern sym_t *getsym(sbuf_t *); 101 extern void clean_up_after_error(void); 102 extern sym_t *pushdown(const sym_t *); 103 extern sym_t *mktempsym(type_t *); 104 extern void rmsym(sym_t *); 105 extern void rmsyms(sym_t *); 106 extern void inssym(int, sym_t *); 107 extern void freeyyv(void *, int); 108 extern int yylex(void); 109 110 /* 111 * mem1.c 112 */ 113 extern const char *record_filename(const char *, size_t); 114 extern int get_filename_id(const char *); 115 extern void add_directory_replacement(char *); 116 extern const char *transform_filename(const char *, size_t); 117 118 extern void initmem(void); 119 120 extern void *block_zero_alloc(size_t); 121 extern void *level_zero_alloc(size_t, size_t); 122 extern void level_free_all(size_t); 123 124 extern void *expr_zero_alloc(size_t); 125 extern tnode_t *expr_alloc_tnode(void); 126 extern void expr_free_all(void); 127 extern struct memory_block *expr_save_memory(void); 128 extern void expr_restore_memory(struct memory_block *); 129 130 /* 131 * debug.c 132 */ 133 134 #ifdef DEBUG 135 const char *declaration_kind_name(declaration_kind); 136 const char *scl_name(scl_t); 137 const char *symt_name(symt_t); 138 const char *tqual_name(tqual_t); 139 void debug_dinfo(const dinfo_t *); 140 void debug_node(const tnode_t *); 141 void debug_sym(const char *, const sym_t *, const char *); 142 void debug_symtab(void); 143 void debug_printf(const char *fmt, ...) __printflike(1, 2); 144 void debug_print_indent(void); 145 void debug_indent_inc(void); 146 void debug_indent_dec(void); 147 void debug_enter(const char *); 148 void debug_step(const char *fmt, ...) __printflike(1, 2); 149 void debug_leave(const char *); 150 #define debug_enter() (debug_enter)(__func__) 151 #define debug_leave() (debug_leave)(__func__) 152 #else 153 #define debug_noop() do { } while (false) 154 #define debug_dinfo(d) debug_noop() 155 #define debug_sym(p, sym, s) debug_noop() 156 #define debug_symtab() debug_noop() 157 #define debug_node(tn) debug_noop() 158 #define debug_printf(...) debug_noop() 159 #define debug_print_indent() debug_noop() 160 #define debug_indent_inc() debug_noop() 161 #define debug_indent_dec() debug_noop() 162 #define debug_enter() debug_noop() 163 #define debug_step(...) debug_noop() 164 #define debug_leave() debug_noop() 165 #endif 166 167 /* 168 * err.c 169 */ 170 extern int nerr; 171 extern int sytxerr; 172 extern const char *const msgs[]; 173 174 extern void msglist(void); 175 extern void error_at(int, const pos_t *, ...); 176 extern void warning_at(int, const pos_t *, ...); 177 extern void message_at(int, const pos_t *, ...); 178 extern void error(int, ...); 179 extern void warning(int, ...); 180 extern void gnuism(int, ...); 181 extern void c99ism(int, ...); 182 extern void c11ism(int, ...); 183 extern void internal_error(const char *, int, const char *, ...) 184 __attribute__((__noreturn__,__format__(__printf__, 3, 4))); 185 extern void assert_failed(const char *, int, const char *, const char *) 186 __attribute__((__noreturn__)); 187 extern void update_location(const char *, int, bool, bool); 188 189 /* 190 * decl.c 191 */ 192 extern dinfo_t *dcs; 193 extern const char *unnamed; 194 extern int enumval; 195 196 extern void initdecl(void); 197 extern type_t *gettyp(tspec_t); 198 extern type_t *block_dup_type(const type_t *); 199 extern type_t *expr_dup_type(const type_t *); 200 extern type_t *expr_unqualified_type(const type_t *); 201 extern bool is_incomplete(const type_t *); 202 extern void add_storage_class(scl_t); 203 extern void add_type(type_t *); 204 extern void add_qualifier(tqual_t); 205 extern void addpacked(void); 206 extern void add_attr_used(void); 207 extern void begin_declaration_level(declaration_kind); 208 extern void end_declaration_level(void); 209 extern void setasm(void); 210 extern void begin_type(void); 211 extern void end_type(void); 212 extern int length_in_bits(const type_t *, const char *); 213 extern unsigned int alignment_in_bits(const type_t *); 214 extern sym_t *lnklst(sym_t *, sym_t *); 215 extern void check_type(sym_t *); 216 extern sym_t *declarator_1_struct_union(sym_t *); 217 extern sym_t *bitfield(sym_t *, int); 218 extern qual_ptr *merge_qualified_pointer(qual_ptr *, qual_ptr *); 219 extern sym_t *add_pointer(sym_t *, qual_ptr *); 220 extern sym_t *add_array(sym_t *, bool, int); 221 extern sym_t *add_function(sym_t *, sym_t *); 222 extern void check_function_definition(sym_t *, bool); 223 extern sym_t *declarator_name(sym_t *); 224 extern sym_t *old_style_function_name(sym_t *); 225 extern type_t *mktag(sym_t *, tspec_t, bool, bool); 226 extern const char *storage_class_name(scl_t); 227 extern type_t *complete_tag_struct_or_union(type_t *, sym_t *); 228 extern type_t *complete_tag_enum(type_t *, sym_t *); 229 extern sym_t *enumeration_constant(sym_t *, int, bool); 230 extern void declare(sym_t *, bool, sbuf_t *); 231 extern void copy_usage_info(sym_t *, sym_t *); 232 extern bool check_redeclaration(sym_t *, bool *); 233 extern bool eqptrtype(const type_t *, const type_t *, bool); 234 extern bool eqtype(const type_t *, const type_t *, bool, bool, bool *); 235 extern void complete_type(sym_t *, sym_t *); 236 extern sym_t *declare_argument(sym_t *, bool); 237 extern void check_func_lint_directives(void); 238 extern void check_func_old_style_arguments(void); 239 240 extern void declare_local(sym_t *, bool); 241 extern sym_t *abstract_name(void); 242 extern void global_clean_up(void); 243 extern sym_t *declare_1_abstract(sym_t *); 244 extern void check_size(sym_t *); 245 extern void mark_as_set(sym_t *); 246 extern void mark_as_used(sym_t *, bool, bool); 247 extern void check_usage(dinfo_t *); 248 extern void check_usage_sym(bool, sym_t *); 249 extern void check_global_symbols(void); 250 extern void print_previous_declaration(int, const sym_t *); 251 extern int to_int_constant(tnode_t *, bool); 252 253 /* 254 * tree.c 255 */ 256 extern const tnode_t *before_conversion(const tnode_t *); 257 extern type_t *block_derive_type(type_t *, tspec_t); 258 extern type_t *expr_derive_type(type_t *, tspec_t); 259 extern bool is_compiler_builtin(const char *); 260 extern tnode_t *build_constant(type_t *, val_t *); 261 extern tnode_t *build_name(sym_t *, bool); 262 extern tnode_t *build_string(strg_t *); 263 extern tnode_t *build_generic_selection(const tnode_t *, 264 struct generic_association *); 265 266 extern tnode_t *build_binary(tnode_t *, op_t, bool, tnode_t *); 267 extern tnode_t *build_unary(op_t, bool, tnode_t *); 268 extern tnode_t *build_member_access(tnode_t *, op_t, bool, sbuf_t *); 269 extern tnode_t *cconv(tnode_t *); 270 extern bool is_typeok_bool_operand(const tnode_t *); 271 extern bool typeok(op_t, int, const tnode_t *, const tnode_t *); 272 extern tnode_t *promote(op_t, bool, tnode_t *); 273 extern tnode_t *convert(op_t, int, type_t *, tnode_t *); 274 extern void convert_constant(op_t, int, const type_t *, val_t *, val_t *); 275 extern tnode_t *build_sizeof(const type_t *); 276 extern tnode_t *build_offsetof(const type_t *, const sym_t *); 277 extern tnode_t *build_alignof(const type_t *); 278 extern tnode_t *cast(tnode_t *, type_t *); 279 extern tnode_t *build_function_argument(tnode_t *, tnode_t *); 280 extern tnode_t *build_function_call(tnode_t *, bool, tnode_t *); 281 extern val_t *constant(tnode_t *, bool); 282 extern void expr(tnode_t *, bool, bool, bool, bool); 283 extern void check_expr_misc(const tnode_t *, bool, bool, bool, 284 bool, bool, bool); 285 extern bool constant_addr(const tnode_t *, const sym_t **, ptrdiff_t *); 286 extern strg_t *cat_strings(strg_t *, strg_t *); 287 extern unsigned int type_size_in_bits(const type_t *); 288 289 void begin_statement_expr(void); 290 void do_statement_expr(tnode_t *); 291 tnode_t *end_statement_expr(void); 292 293 /* 294 * func.c 295 */ 296 extern sym_t *funcsym; 297 extern bool reached; 298 extern bool warn_about_unreachable; 299 extern bool seen_fallthrough; 300 extern int nargusg; 301 extern pos_t argsused_pos; 302 extern int nvararg; 303 extern pos_t vapos; 304 extern int printflike_argnum; 305 extern pos_t printflike_pos; 306 extern int scanflike_argnum; 307 extern pos_t scanflike_pos; 308 extern bool constcond_flag; 309 extern bool llibflg; 310 extern int lwarn; 311 extern bool bitfieldtype_ok; 312 extern bool plibflg; 313 extern bool quadflg; 314 315 extern void begin_control_statement(control_statement_kind); 316 extern void end_control_statement(control_statement_kind); 317 extern void check_statement_reachable(void); 318 extern void funcdef(sym_t *); 319 extern void funcend(void); 320 extern void named_label(sym_t *); 321 extern void case_label(tnode_t *); 322 extern void default_label(void); 323 extern void if1(tnode_t *); 324 extern void if2(void); 325 extern void if3(bool); 326 extern void switch1(tnode_t *); 327 extern void switch2(void); 328 extern void while1(tnode_t *); 329 extern void while2(void); 330 extern void do1(void); 331 extern void do2(tnode_t *); 332 extern void for1(tnode_t *, tnode_t *, tnode_t *); 333 extern void for2(void); 334 extern void do_goto(sym_t *); 335 extern void do_continue(void); 336 extern void do_break(void); 337 extern void do_return(bool, tnode_t *); 338 extern void global_clean_up_decl(bool); 339 extern void argsused(int); 340 extern void constcond(int); 341 extern void fallthru(int); 342 extern void not_reached(int); 343 extern void lintlib(int); 344 extern void linted(int); 345 extern void varargs(int); 346 extern void printflike(int); 347 extern void scanflike(int); 348 extern void protolib(int); 349 extern void longlong(int); 350 extern void bitfieldtype(int); 351 352 /* 353 * init.c 354 */ 355 extern void begin_initialization(sym_t *); 356 extern void end_initialization(void); 357 extern sym_t **current_initsym(void); 358 359 extern void init_rbrace(void); 360 extern void init_lbrace(void); 361 extern void init_expr(tnode_t *); 362 extern void begin_designation(void); 363 extern void add_designator_member(sbuf_t *); 364 extern void add_designator_subscript(range_t); 365 366 /* 367 * emit.c 368 */ 369 extern void outtype(const type_t *); 370 extern void outsym(const sym_t *, scl_t, def_t); 371 extern void outfdef(const sym_t *, const pos_t *, bool, bool, 372 const sym_t *); 373 extern void outcall(const tnode_t *, bool, bool); 374 extern void outusg(const sym_t *); 375 376 /* 377 * lex.c 378 */ 379 extern int lex_name(const char *, size_t); 380 extern int lex_integer_constant(const char *, size_t, int); 381 extern int lex_floating_constant(const char *, size_t); 382 extern int lex_operator(int, op_t); 383 extern int lex_string(void); 384 extern int lex_wide_string(void); 385 extern int lex_character_constant(void); 386 extern int lex_wide_character_constant(void); 387 extern void lex_directive(const char *); 388 extern void lex_next_line(void); 389 extern void lex_comment(void); 390 extern void lex_slash_slash_comment(void); 391 extern void lex_unknown_character(int); 392 extern int lex_input(void); 393 394 /* 395 * ckbool.c 396 */ 397 extern bool typeok_scalar_strict_bool(op_t, const mod_t *, int, 398 const tnode_t *, const tnode_t *); 399 extern bool fallback_symbol_strict_bool(sym_t *); 400 401 /* 402 * ckctype.c 403 */ 404 extern void check_ctype_function_call(const tnode_t *, const tnode_t *); 405 extern void check_ctype_macro_invocation(const tnode_t *, const tnode_t *); 406 407 /* 408 * ckgetopt.c 409 */ 410 extern void check_getopt_begin_while(const tnode_t *); 411 extern void check_getopt_begin_switch(void); 412 extern void check_getopt_case_label(int64_t); 413 extern void check_getopt_end_switch(void); 414 extern void check_getopt_end_while(void); 415
Indexes created Mon Sep 22 13:09:51 GMT 2025