1 /* $NetBSD: externs1.h,v 1.105 2021/04/14 20:06:40 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 *msgs[]; 121 122 extern void msglist(void); 123 extern void error(int, ...); 124 extern void warning(int, ...); 125 extern void message(int, ...); 126 extern void gnuism(int, ...); 127 extern void c99ism(int, ...); 128 extern void c11ism(int, ...); 129 extern void internal_error(const char *, int, const char *, ...) 130 __attribute__((__noreturn__,__format__(__printf__, 3, 4))); 131 extern void assert_failed(const char *, int, const char *, const char *) 132 __attribute__((__noreturn__)); 133 extern void update_location(const char *, int, bool, bool); 134 135 /* 136 * decl.c 137 */ 138 extern dinfo_t *dcs; 139 extern const char *unnamed; 140 extern int enumval; 141 142 extern void initdecl(void); 143 extern type_t *gettyp(tspec_t); 144 extern type_t *dup_type(const type_t *); 145 extern type_t *expr_dup_type(const type_t *); 146 extern bool is_incomplete(const type_t *); 147 extern void setcomplete(type_t *, bool); 148 extern void add_storage_class(scl_t); 149 extern void add_type(type_t *); 150 extern void add_qualifier(tqual_t); 151 extern void addpacked(void); 152 extern void add_attr_used(void); 153 extern void begin_declaration_level(scl_t); 154 extern void end_declaration_level(void); 155 extern void setasm(void); 156 extern void clrtyp(void); 157 extern void deftyp(void); 158 extern int length(const type_t *, const char *); 159 extern int alignment_in_bits(const type_t *); 160 extern sym_t *lnklst(sym_t *, sym_t *); 161 extern void check_type(sym_t *); 162 extern sym_t *declarator_1_struct_union(sym_t *); 163 extern sym_t *bitfield(sym_t *, int); 164 extern pqinf_t *merge_pointers_and_qualifiers(pqinf_t *, pqinf_t *); 165 extern sym_t *add_pointer(sym_t *, pqinf_t *); 166 extern sym_t *add_array(sym_t *, bool, int); 167 extern sym_t *add_function(sym_t *, sym_t *); 168 extern void check_function_definition(sym_t *, bool); 169 extern sym_t *declarator_name(sym_t *); 170 extern sym_t *old_style_function_name(sym_t *); 171 extern type_t *mktag(sym_t *, tspec_t, bool, bool); 172 extern const char *storage_class_name(scl_t); 173 extern type_t *complete_tag_struct_or_union(type_t *, sym_t *); 174 extern type_t *complete_tag_enum(type_t *, sym_t *); 175 extern sym_t *enumeration_constant(sym_t *, int, bool); 176 extern void declare(sym_t *, bool, sbuf_t *); 177 extern void copy_usage_info(sym_t *, sym_t *); 178 extern bool check_redeclaration(sym_t *, bool *); 179 extern bool eqptrtype(const type_t *, const type_t *, bool); 180 extern bool eqtype(const type_t *, const type_t *, bool, bool, bool *); 181 extern void complete_type(sym_t *, sym_t *); 182 extern sym_t *declare_argument(sym_t *, bool); 183 extern void check_func_lint_directives(void); 184 extern void check_func_old_style_arguments(void); 185 186 extern void declare_local(sym_t *, bool); 187 extern sym_t *abstract_name(void); 188 extern void global_clean_up(void); 189 extern sym_t *declare_1_abstract(sym_t *); 190 extern void check_size(sym_t *); 191 extern void mark_as_set(sym_t *); 192 extern void mark_as_used(sym_t *, bool, bool); 193 extern void check_usage(dinfo_t *); 194 extern void check_usage_sym(bool, sym_t *); 195 extern void check_global_symbols(void); 196 extern void print_previous_declaration(int, const sym_t *); 197 extern int to_int_constant(tnode_t *, bool); 198 199 /* 200 * tree.c 201 */ 202 extern const tnode_t *before_conversion(const tnode_t *); 203 extern type_t *derive_type(type_t *, tspec_t); 204 extern type_t *expr_derive_type(type_t *, tspec_t); 205 extern tnode_t *expr_new_constant(type_t *, val_t *); 206 extern tnode_t *new_name_node(sym_t *, int); 207 extern tnode_t *new_string_node(strg_t *); 208 extern sym_t *struct_or_union_member(tnode_t *, op_t, sym_t *); 209 extern tnode_t *build(op_t, tnode_t *, tnode_t *); 210 extern tnode_t *cconv(tnode_t *); 211 extern bool is_typeok_bool_operand(const tnode_t *); 212 extern bool typeok(op_t, int, const tnode_t *, const tnode_t *); 213 extern tnode_t *promote(op_t, bool, tnode_t *); 214 extern tnode_t *convert(op_t, int, type_t *, tnode_t *); 215 extern void convert_constant(op_t, int, const type_t *, val_t *, val_t *); 216 extern tnode_t *build_sizeof(const type_t *); 217 extern tnode_t *build_offsetof(const type_t *, const sym_t *); 218 extern tnode_t *build_alignof(const type_t *); 219 extern tnode_t *cast(tnode_t *, type_t *); 220 extern tnode_t *new_function_argument_node(tnode_t *, tnode_t *); 221 extern tnode_t *new_function_call_node(tnode_t *, tnode_t *); 222 extern val_t *constant(tnode_t *, bool); 223 extern void expr(tnode_t *, bool, bool, bool, bool); 224 extern void check_expr_misc(const tnode_t *, bool, bool, bool, 225 bool, bool, bool); 226 extern bool constant_addr(const tnode_t *, const sym_t **, ptrdiff_t *); 227 extern strg_t *cat_strings(strg_t *, strg_t *); 228 extern int64_t type_size_in_bits(const type_t *); 229 #ifdef DEBUG 230 extern void debug_node(const tnode_t *, int); 231 #else 232 #define debug_node(tn, indent) do { } while (false) 233 #endif 234 235 /* 236 * func.c 237 */ 238 extern sym_t *funcsym; 239 extern bool reached; 240 extern bool warn_about_unreachable; 241 extern bool seen_fallthrough; 242 extern int nargusg; 243 extern pos_t argsused_pos; 244 extern int nvararg; 245 extern pos_t vapos; 246 extern int printflike_argnum; 247 extern pos_t printflike_pos; 248 extern int scanflike_argnum; 249 extern pos_t scanflike_pos; 250 extern bool constcond_flag; 251 extern bool llibflg; 252 extern int lwarn; 253 extern bool bitfieldtype_ok; 254 extern bool plibflg; 255 extern bool quadflg; 256 257 extern void begin_control_statement(control_statement_kind); 258 extern void end_control_statement(control_statement_kind); 259 extern void check_statement_reachable(void); 260 extern void funcdef(sym_t *); 261 extern void funcend(void); 262 extern void named_label(sym_t *); 263 extern void case_label(tnode_t *); 264 extern void default_label(void); 265 extern void if1(tnode_t *); 266 extern void if2(void); 267 extern void if3(bool); 268 extern void switch1(tnode_t *); 269 extern void switch2(void); 270 extern void while1(tnode_t *); 271 extern void while2(void); 272 extern void do1(void); 273 extern void do2(tnode_t *); 274 extern void for1(tnode_t *, tnode_t *, tnode_t *); 275 extern void for2(void); 276 extern void do_goto(sym_t *); 277 extern void do_continue(void); 278 extern void do_break(void); 279 extern void do_return(tnode_t *); 280 extern void global_clean_up_decl(bool); 281 extern void argsused(int); 282 extern void constcond(int); 283 extern void fallthru(int); 284 extern void not_reached(int); 285 extern void lintlib(int); 286 extern void linted(int); 287 extern void varargs(int); 288 extern void printflike(int); 289 extern void scanflike(int); 290 extern void protolib(int); 291 extern void longlong(int); 292 extern void bitfieldtype(int); 293 294 /* 295 * init.c 296 */ 297 extern void begin_initialization(sym_t *); 298 extern void end_initialization(void); 299 extern sym_t **current_initsym(void); 300 301 extern void init_rbrace(void); 302 extern void init_lbrace(void); 303 extern void init_expr(tnode_t *); 304 extern void add_designator_member(sbuf_t *); 305 extern void add_designator_subscript(range_t); 306 307 /* 308 * emit.c 309 */ 310 extern void outtype(const type_t *); 311 extern const char *ttos(const type_t *); 312 extern void outsym(const sym_t *, scl_t, def_t); 313 extern void outfdef(const sym_t *, const pos_t *, bool, bool, 314 const sym_t *); 315 extern void outcall(const tnode_t *, bool, bool); 316 extern void outusg(const sym_t *); 317 318 /* 319 * lex.c 320 */ 321 extern int lex_name(const char *, size_t); 322 extern int lex_integer_constant(const char *, size_t, int); 323 extern int lex_floating_constant(const char *, size_t); 324 extern int lex_operator(int, op_t); 325 extern int lex_string(void); 326 extern int lex_wide_string(void); 327 extern int lex_character_constant(void); 328 extern int lex_wide_character_constant(void); 329 extern void lex_directive(const char *); 330 extern void lex_next_line(void); 331 extern void lex_comment(void); 332 extern void lex_slash_slash_comment(void); 333 extern void lex_unknown_character(int); 334 extern int lex_input(void); 335 336 /* 337 * print.c 338 */ 339 extern char *print_tnode(char *, size_t, const tnode_t *); 340 341 /* 342 * ckbool.c 343 */ 344 extern bool typeok_scalar_strict_bool(op_t, const mod_t *, int, 345 const tnode_t *, const tnode_t *); 346 extern bool fallback_symbol_strict_bool(sym_t *); 347 348 /* 349 * ckctype.c 350 */ 351 extern void check_ctype_function_call(const tnode_t *, const tnode_t *); 352 extern void check_ctype_macro_invocation(const tnode_t *, const tnode_t *); 353 354 /* 355 * ckgetopt.c 356 */ 357 extern void check_getopt_begin_while(const tnode_t *); 358 extern void check_getopt_begin_switch(void); 359 extern void check_getopt_case_label(int64_t); 360 extern void check_getopt_end_switch(void); 361 extern void check_getopt_end_while(void); 362