externs1.h revision 1.186
1 /* $NetBSD: externs1.h,v 1.186 2023/07/02 10:20:45 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 #include <signal.h> 35 36 /* 37 * main1.c 38 */ 39 extern int aflag; 40 extern bool bflag; 41 extern bool cflag; 42 extern bool eflag; 43 extern bool Fflag; 44 extern bool hflag; 45 extern bool pflag; 46 extern bool rflag; 47 extern bool uflag; 48 extern bool vflag; 49 extern bool yflag; 50 extern bool wflag; 51 extern bool zflag; 52 extern bool Tflag; 53 extern bool Pflag; 54 55 extern bool allow_trad; 56 extern bool allow_c90; 57 extern bool allow_c99; 58 extern bool allow_c11; 59 extern bool allow_gcc; 60 61 extern sig_atomic_t fpe; 62 63 void norecover(void); 64 65 /* 66 * cgram.y 67 */ 68 extern int block_level; 69 extern size_t mem_block_level; 70 extern int yydebug; 71 72 int yyerror(const char *); 73 int yyparse(void); 74 75 /* 76 * scan.l 77 */ 78 extern bool in_gcc_attribute; 79 extern pos_t curr_pos; 80 extern pos_t csrc_pos; 81 extern bool in_system_header; 82 extern symt_t symtyp; 83 extern FILE *yyin; 84 85 void initscan(void); 86 int64_t convert_integer(int64_t, tspec_t, unsigned int); 87 void clear_warn_flags(void); 88 sym_t *getsym(sbuf_t *); 89 void clean_up_after_error(void); 90 sym_t *pushdown(const sym_t *); 91 sym_t *mktempsym(type_t *); 92 void rmsym(sym_t *); 93 void symtab_remove_level(sym_t *); 94 void inssym(int, sym_t *); 95 void freeyyv(void *, int); 96 int yylex(void); 97 98 /* 99 * mem1.c 100 */ 101 const char *record_filename(const char *, size_t); 102 int get_filename_id(const char *); 103 void add_directory_replacement(char *); 104 const char *transform_filename(const char *, size_t); 105 106 void *block_zero_alloc(size_t); 107 void *level_zero_alloc(size_t, size_t); 108 void level_free_all(size_t); 109 110 void *expr_zero_alloc(size_t); 111 tnode_t *expr_alloc_tnode(void); 112 void expr_free_all(void); 113 memory_pool expr_save_memory(void); 114 void expr_restore_memory(memory_pool); 115 116 /* 117 * debug.c 118 */ 119 120 #ifdef DEBUG 121 const char *decl_level_kind_name(decl_level_kind); 122 const char *scl_name(scl_t); 123 const char *symt_name(symt_t); 124 const char *tqual_name(tqual_t); 125 void debug_dcs(bool); 126 void debug_node(const tnode_t *); 127 void debug_type(const type_t *); 128 void debug_sym(const char *, const sym_t *, const char *); 129 void debug_symtab(void); 130 void debug_printf(const char *fmt, ...) __printflike(1, 2); 131 void debug_print_indent(void); 132 void debug_indent_inc(void); 133 void debug_indent_dec(void); 134 void debug_enter_func(const char *); 135 void debug_step(const char *fmt, ...) __printflike(1, 2); 136 void debug_leave_func(const char *); 137 #define debug_enter() debug_enter_func(__func__) 138 #define debug_leave() debug_leave_func(__func__) 139 #else 140 #define debug_noop() do { } while (false) 141 #define debug_dcs(all) debug_noop() 142 #define debug_sym(p, sym, s) debug_noop() 143 #define debug_symtab() debug_noop() 144 #define debug_node(tn) debug_noop() 145 #define debug_type(tp) debug_noop() 146 #define debug_printf(...) debug_noop() 147 #define debug_print_indent() debug_noop() 148 #define debug_indent_inc() debug_noop() 149 #define debug_indent_dec() debug_noop() 150 #define debug_enter() debug_noop() 151 #define debug_step(...) debug_noop() 152 #define debug_leave() debug_noop() 153 #endif 154 155 /* 156 * err.c 157 */ 158 extern int nerr; 159 extern int sytxerr; 160 extern bool any_query_enabled; 161 162 void msglist(void); 163 void error_at(int, const pos_t *, ...); 164 void warning_at(int, const pos_t *, ...); 165 void message_at(int, const pos_t *, ...); 166 void error(int, ...); 167 void warning(int, ...); 168 bool gnuism(int, ...); 169 void c99ism(int, ...); 170 void c11ism(int, ...); 171 void assert_failed(const char *, int, const char *, const char *) 172 __attribute__((__noreturn__)); 173 void update_location(const char *, int, bool, bool); 174 void suppress_messages(const char *); 175 176 void query_message(int, ...); 177 void enable_queries(const char *); 178 179 /* 180 * decl.c 181 */ 182 extern decl_level *dcs; 183 extern const char unnamed[]; 184 extern int enumval; 185 186 void initdecl(void); 187 type_t *gettyp(tspec_t); 188 type_t *block_dup_type(const type_t *); 189 type_t *expr_dup_type(const type_t *); 190 type_t *expr_unqualified_type(const type_t *); 191 bool is_incomplete(const type_t *); 192 void dcs_add_storage_class(scl_t); 193 void dcs_add_type(type_t *); 194 void dcs_add_qualifier(tqual_t); 195 void dcs_add_packed(void); 196 void dcs_set_used(void); 197 void begin_declaration_level(decl_level_kind); 198 void end_declaration_level(void); 199 void dcs_set_asm(void); 200 void dcs_begin_type(void); 201 void dcs_end_type(void); 202 int length_in_bits(const type_t *, const char *); 203 unsigned int alignment_in_bits(const type_t *); 204 sym_t *concat_symbols(sym_t *, sym_t *); 205 void check_type(sym_t *); 206 sym_t *declare_unnamed_member(void); 207 sym_t *declare_member(sym_t *); 208 sym_t *set_bit_field_width(sym_t *, int); 209 qual_ptr *merge_qualified_pointer(qual_ptr *, qual_ptr *); 210 sym_t *add_pointer(sym_t *, qual_ptr *); 211 sym_t *add_array(sym_t *, bool, int); 212 sym_t *add_function(sym_t *, sym_t *); 213 void check_function_definition(sym_t *, bool); 214 sym_t *declarator_name(sym_t *); 215 sym_t *old_style_function_parameter_name(sym_t *); 216 type_t *make_tag_type(sym_t *, tspec_t, bool, bool); 217 const char *storage_class_name(scl_t); 218 type_t *complete_struct_or_union(sym_t *); 219 type_t *complete_enum(sym_t *); 220 sym_t *enumeration_constant(sym_t *, int, bool); 221 void declare(sym_t *, bool, sbuf_t *); 222 void copy_usage_info(sym_t *, sym_t *); 223 bool check_redeclaration(sym_t *, bool *); 224 bool pointer_types_are_compatible(const type_t *, const type_t *, bool); 225 bool types_compatible(const type_t *, const type_t *, bool, bool, bool *); 226 void complete_type(sym_t *, sym_t *); 227 sym_t *declare_argument(sym_t *, bool); 228 void check_func_lint_directives(void); 229 void check_func_old_style_arguments(void); 230 231 void declare_local(sym_t *, bool); 232 sym_t *abstract_name(void); 233 void global_clean_up(void); 234 sym_t *declare_abstract_type(sym_t *); 235 void check_size(sym_t *); 236 void mark_as_set(sym_t *); 237 void mark_as_used(sym_t *, bool, bool); 238 void check_usage(decl_level *); 239 void check_usage_sym(bool, sym_t *); 240 void check_global_symbols(void); 241 void print_previous_declaration(const sym_t *); 242 int to_int_constant(tnode_t *, bool); 243 244 /* 245 * tree.c 246 */ 247 const tnode_t *before_conversion(const tnode_t *); 248 type_t *block_derive_type(type_t *, tspec_t); 249 type_t *expr_derive_type(type_t *, tspec_t); 250 bool is_compiler_builtin(const char *); 251 tnode_t *build_constant(type_t *, val_t *); 252 tnode_t *build_name(sym_t *, bool); 253 tnode_t *build_string(strg_t *); 254 tnode_t *build_generic_selection(const tnode_t *, 255 struct generic_association *); 256 257 tnode_t *build_binary(tnode_t *, op_t, bool, tnode_t *); 258 tnode_t *build_unary(op_t, bool, tnode_t *); 259 tnode_t *build_member_access(tnode_t *, op_t, bool, sbuf_t *); 260 tnode_t *cconv(tnode_t *); 261 bool is_typeok_bool_compares_with_zero(const tnode_t *); 262 bool typeok(op_t, int, const tnode_t *, const tnode_t *); 263 tnode_t *promote(op_t, bool, tnode_t *); 264 tnode_t *convert(op_t, int, type_t *, tnode_t *); 265 void convert_constant(op_t, int, const type_t *, val_t *, val_t *); 266 tnode_t *build_sizeof(const type_t *); 267 tnode_t *build_offsetof(const type_t *, const sym_t *); 268 tnode_t *build_alignof(const type_t *); 269 tnode_t *cast(tnode_t *, type_t *); 270 tnode_t *build_function_argument(tnode_t *, tnode_t *); 271 tnode_t *build_function_call(tnode_t *, bool, tnode_t *); 272 val_t *integer_constant(tnode_t *, bool); 273 void expr(tnode_t *, bool, bool, bool, bool); 274 void check_expr_misc(const tnode_t *, bool, bool, bool, bool, bool, bool); 275 bool constant_addr(const tnode_t *, const sym_t **, ptrdiff_t *); 276 strg_t *cat_strings(strg_t *, strg_t *); 277 unsigned int type_size_in_bits(const type_t *); 278 sym_t *find_member(const type_t *, const char *); 279 280 void begin_statement_expr(void); 281 void do_statement_expr(tnode_t *); 282 tnode_t *end_statement_expr(void); 283 284 /* 285 * func.c 286 */ 287 extern sym_t *funcsym; 288 extern bool reached; 289 extern bool warn_about_unreachable; 290 extern bool seen_fallthrough; 291 extern int nargusg; 292 extern pos_t argsused_pos; 293 extern int nvararg; 294 extern pos_t vapos; 295 extern int printflike_argnum; 296 extern pos_t printflike_pos; 297 extern int scanflike_argnum; 298 extern pos_t scanflike_pos; 299 extern bool constcond_flag; 300 extern bool llibflg; 301 extern int lwarn; 302 extern bool bitfieldtype_ok; 303 extern bool plibflg; 304 extern bool quadflg; 305 306 void begin_control_statement(control_statement_kind); 307 void end_control_statement(control_statement_kind); 308 void check_statement_reachable(void); 309 void begin_function(sym_t *); 310 void end_function(void); 311 void named_label(sym_t *); 312 void case_label(tnode_t *); 313 void default_label(void); 314 void stmt_if_expr(tnode_t *); 315 void stmt_if_then_stmt(void); 316 void stmt_if_else_stmt(bool); 317 void stmt_switch_expr(tnode_t *); 318 void stmt_switch_expr_stmt(void); 319 void stmt_while_expr(tnode_t *); 320 void stmt_while_expr_stmt(void); 321 void stmt_do(void); 322 void stmt_do_while_expr(tnode_t *); 323 void stmt_for_exprs(tnode_t *, tnode_t *, tnode_t *); 324 void stmt_for_exprs_stmt(void); 325 void stmt_goto(sym_t *); 326 void stmt_continue(void); 327 void stmt_break(void); 328 void stmt_return(bool, tnode_t *); 329 void global_clean_up_decl(bool); 330 void argsused(int); 331 void constcond(int); 332 void fallthru(int); 333 void not_reached(int); 334 void lintlib(int); 335 void linted(int); 336 void varargs(int); 337 void printflike(int); 338 void scanflike(int); 339 void protolib(int); 340 void longlong(int); 341 void bitfieldtype(int); 342 343 /* 344 * init.c 345 */ 346 void begin_initialization(sym_t *); 347 void end_initialization(void); 348 sym_t *current_initsym(void); 349 350 void init_rbrace(void); 351 void init_lbrace(void); 352 void init_expr(tnode_t *); 353 void begin_designation(void); 354 void add_designator_member(sbuf_t *); 355 void add_designator_subscript(range_t); 356 357 /* 358 * emit.c 359 */ 360 void outtype(const type_t *); 361 void outsym(const sym_t *, scl_t, def_t); 362 void outfdef(const sym_t *, const pos_t *, bool, bool, const sym_t *); 363 void outcall(const tnode_t *, bool, bool); 364 void outusg(const sym_t *); 365 366 /* 367 * lex.c 368 */ 369 int lex_name(const char *, size_t); 370 int lex_integer_constant(const char *, size_t, int); 371 int lex_floating_constant(const char *, size_t); 372 int lex_operator(int, op_t); 373 int lex_string(void); 374 int lex_wide_string(void); 375 int lex_character_constant(void); 376 int lex_wide_character_constant(void); 377 void lex_directive(const char *); 378 void lex_next_line(void); 379 void lex_comment(void); 380 void lex_slash_slash_comment(void); 381 void lex_unknown_character(int); 382 int lex_input(void); 383 384 /* 385 * ckbool.c 386 */ 387 bool typeok_scalar_strict_bool(op_t, const mod_t *, int, 388 const tnode_t *, const tnode_t *); 389 bool fallback_symbol_strict_bool(sym_t *); 390 391 /* 392 * ckctype.c 393 */ 394 void check_ctype_function_call(const tnode_t *, const tnode_t *); 395 void check_ctype_macro_invocation(const tnode_t *, const tnode_t *); 396 397 /* 398 * ckgetopt.c 399 */ 400 void check_getopt_begin_while(const tnode_t *); 401 void check_getopt_begin_switch(void); 402 void check_getopt_case_label(int64_t); 403 void check_getopt_end_switch(void); 404 void check_getopt_end_while(void); 405
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