externs1.h revision 1.167
1/* $NetBSD: externs1.h,v 1.167 2022/08/28 10:43:18 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 */ 37extern int aflag; 38extern bool bflag; 39extern bool cflag; 40extern bool eflag; 41extern bool Fflag; 42extern bool hflag; 43extern bool pflag; 44extern bool rflag; 45extern bool uflag; 46extern bool vflag; 47extern bool yflag; 48extern bool wflag; 49extern bool zflag; 50extern bool Tflag; 51extern bool Pflag; 52 53extern bool allow_trad; 54extern bool allow_c90; 55extern bool allow_c99; 56extern bool allow_c11; 57extern bool allow_gcc; 58 59extern void norecover(void); 60 61/* 62 * cgram.y 63 */ 64extern int block_level; 65extern size_t mem_block_level; 66extern int yydebug; 67 68extern int yyerror(const char *); 69extern int yyparse(void); 70 71/* 72 * scan.l 73 */ 74extern bool in_gcc_attribute; 75extern pos_t curr_pos; 76extern pos_t csrc_pos; 77extern bool in_system_header; 78extern symt_t symtyp; 79extern FILE *yyin; 80 81extern void initscan(void); 82extern int64_t convert_integer(int64_t, tspec_t, unsigned int); 83extern void clear_warn_flags(void); 84extern sym_t *getsym(sbuf_t *); 85extern void clean_up_after_error(void); 86extern sym_t *pushdown(const sym_t *); 87extern sym_t *mktempsym(type_t *); 88extern void rmsym(sym_t *); 89extern void rmsyms(sym_t *); 90extern void inssym(int, sym_t *); 91extern void freeyyv(void *, int); 92extern int yylex(void); 93 94/* 95 * mem1.c 96 */ 97extern const char *record_filename(const char *, size_t); 98extern int get_filename_id(const char *); 99extern void add_directory_replacement(char *); 100extern const char *transform_filename(const char *, size_t); 101 102extern void initmem(void); 103 104extern void *block_zero_alloc(size_t); 105extern void *level_zero_alloc(size_t, size_t); 106extern void level_free_all(size_t); 107 108extern void *expr_zero_alloc(size_t); 109extern tnode_t *expr_alloc_tnode(void); 110extern void expr_free_all(void); 111extern struct memory_block *expr_save_memory(void); 112extern void expr_restore_memory(struct memory_block *); 113 114/* 115 * debug.c 116 */ 117 118#ifdef DEBUG 119const char *declaration_kind_name(declaration_kind); 120const char *scl_name(scl_t); 121const char *symt_name(symt_t); 122const char *tqual_name(tqual_t); 123void debug_dinfo(const dinfo_t *); 124void debug_node(const tnode_t *); 125void debug_type(const type_t *); 126void debug_sym(const char *, const sym_t *, const char *); 127void debug_symtab(void); 128void debug_printf(const char *fmt, ...) __printflike(1, 2); 129void debug_print_indent(void); 130void debug_indent_inc(void); 131void debug_indent_dec(void); 132void debug_enter(const char *); 133void debug_step(const char *fmt, ...) __printflike(1, 2); 134void debug_leave(const char *); 135#define debug_enter() (debug_enter)(__func__) 136#define debug_leave() (debug_leave)(__func__) 137#else 138#define debug_noop() do { } while (false) 139#define debug_dinfo(d) debug_noop() 140#define debug_sym(p, sym, s) debug_noop() 141#define debug_symtab() debug_noop() 142#define debug_node(tn) debug_noop() 143#define debug_type(tp) debug_noop() 144#define debug_printf(...) debug_noop() 145#define debug_print_indent() debug_noop() 146#define debug_indent_inc() debug_noop() 147#define debug_indent_dec() debug_noop() 148#define debug_enter() debug_noop() 149#define debug_step(...) debug_noop() 150#define debug_leave() debug_noop() 151#endif 152 153/* 154 * err.c 155 */ 156extern int nerr; 157extern int sytxerr; 158extern bool any_query_enabled; 159 160extern void msglist(void); 161extern void error_at(int, const pos_t *, ...); 162extern void warning_at(int, const pos_t *, ...); 163extern void message_at(int, const pos_t *, ...); 164extern void error(int, ...); 165extern void warning(int, ...); 166extern bool gnuism(int, ...); 167extern void c99ism(int, ...); 168extern void c11ism(int, ...); 169extern void internal_error(const char *, int, const char *, ...) 170 __attribute__((__noreturn__,__format__(__printf__, 3, 4))); 171extern void assert_failed(const char *, int, const char *, const char *) 172 __attribute__((__noreturn__)); 173extern void update_location(const char *, int, bool, bool); 174extern void suppress_messages(char *); 175 176extern void query_message(int, ...); 177extern void enable_queries(const char *); 178 179/* 180 * decl.c 181 */ 182extern dinfo_t *dcs; 183extern const char *unnamed; 184extern int enumval; 185 186extern void initdecl(void); 187extern type_t *gettyp(tspec_t); 188extern type_t *block_dup_type(const type_t *); 189extern type_t *expr_dup_type(const type_t *); 190extern type_t *expr_unqualified_type(const type_t *); 191extern bool is_incomplete(const type_t *); 192extern void dcs_add_storage_class(scl_t); 193extern void dcs_add_type(type_t *); 194extern void dcs_add_qualifier(tqual_t); 195extern void dcs_add_packed(void); 196extern void dcs_set_used(void); 197extern void begin_declaration_level(declaration_kind); 198extern void end_declaration_level(void); 199extern void dcs_set_asm(void); 200extern void dcs_begin_type(void); 201extern void dcs_end_type(void); 202extern int length_in_bits(const type_t *, const char *); 203extern unsigned int alignment_in_bits(const type_t *); 204extern sym_t *concat_lists(sym_t *, sym_t *); 205extern void check_type(sym_t *); 206extern sym_t *declarator_1_struct_union(sym_t *); 207extern sym_t *set_bit_field_width(sym_t *, int); 208extern qual_ptr *merge_qualified_pointer(qual_ptr *, qual_ptr *); 209extern sym_t *add_pointer(sym_t *, qual_ptr *); 210extern sym_t *add_array(sym_t *, bool, int); 211extern sym_t *add_function(sym_t *, sym_t *); 212extern void check_function_definition(sym_t *, bool); 213extern sym_t *declarator_name(sym_t *); 214extern sym_t *old_style_function_name(sym_t *); 215extern type_t *make_tag_type(sym_t *, tspec_t, bool, bool); 216extern const char *storage_class_name(scl_t); 217extern type_t *complete_tag_struct_or_union(type_t *, sym_t *); 218extern type_t *complete_tag_enum(type_t *, sym_t *); 219extern sym_t *enumeration_constant(sym_t *, int, bool); 220extern void declare(sym_t *, bool, sbuf_t *); 221extern void copy_usage_info(sym_t *, sym_t *); 222extern bool check_redeclaration(sym_t *, bool *); 223extern bool eq_pointer_type(const type_t *, const type_t *, bool); 224extern bool eqtype(const type_t *, const type_t *, bool, bool, bool *); 225extern void complete_type(sym_t *, sym_t *); 226extern sym_t *declare_argument(sym_t *, bool); 227extern void check_func_lint_directives(void); 228extern void check_func_old_style_arguments(void); 229 230extern void declare_local(sym_t *, bool); 231extern sym_t *abstract_name(void); 232extern void global_clean_up(void); 233extern sym_t *declare_1_abstract(sym_t *); 234extern void check_size(sym_t *); 235extern void mark_as_set(sym_t *); 236extern void mark_as_used(sym_t *, bool, bool); 237extern void check_usage(dinfo_t *); 238extern void check_usage_sym(bool, sym_t *); 239extern void check_global_symbols(void); 240extern void print_previous_declaration(int, const sym_t *); 241extern int to_int_constant(tnode_t *, bool); 242 243/* 244 * tree.c 245 */ 246extern const tnode_t *before_conversion(const tnode_t *); 247extern type_t *block_derive_type(type_t *, tspec_t); 248extern type_t *expr_derive_type(type_t *, tspec_t); 249extern bool is_compiler_builtin(const char *); 250extern tnode_t *build_constant(type_t *, val_t *); 251extern tnode_t *build_name(sym_t *, bool); 252extern tnode_t *build_string(strg_t *); 253extern tnode_t *build_generic_selection(const tnode_t *, 254 struct generic_association *); 255 256extern tnode_t *build_binary(tnode_t *, op_t, bool, tnode_t *); 257extern tnode_t *build_unary(op_t, bool, tnode_t *); 258extern tnode_t *build_member_access(tnode_t *, op_t, bool, sbuf_t *); 259extern tnode_t *cconv(tnode_t *); 260extern bool is_typeok_bool_compares_with_zero(const tnode_t *); 261extern bool typeok(op_t, int, const tnode_t *, const tnode_t *); 262extern tnode_t *promote(op_t, bool, tnode_t *); 263extern tnode_t *convert(op_t, int, type_t *, tnode_t *); 264extern void convert_constant(op_t, int, const type_t *, val_t *, val_t *); 265extern tnode_t *build_sizeof(const type_t *); 266extern tnode_t *build_offsetof(const type_t *, const sym_t *); 267extern tnode_t *build_alignof(const type_t *); 268extern tnode_t *cast(tnode_t *, type_t *); 269extern tnode_t *build_function_argument(tnode_t *, tnode_t *); 270extern tnode_t *build_function_call(tnode_t *, bool, tnode_t *); 271extern val_t *constant(tnode_t *, bool); 272extern void expr(tnode_t *, bool, bool, bool, bool); 273extern void check_expr_misc(const tnode_t *, bool, bool, bool, 274 bool, bool, bool); 275extern bool constant_addr(const tnode_t *, const sym_t **, ptrdiff_t *); 276extern strg_t *cat_strings(strg_t *, strg_t *); 277extern unsigned int type_size_in_bits(const type_t *); 278 279void begin_statement_expr(void); 280void do_statement_expr(tnode_t *); 281tnode_t *end_statement_expr(void); 282 283/* 284 * func.c 285 */ 286extern sym_t *funcsym; 287extern bool reached; 288extern bool warn_about_unreachable; 289extern bool seen_fallthrough; 290extern int nargusg; 291extern pos_t argsused_pos; 292extern int nvararg; 293extern pos_t vapos; 294extern int printflike_argnum; 295extern pos_t printflike_pos; 296extern int scanflike_argnum; 297extern pos_t scanflike_pos; 298extern bool constcond_flag; 299extern bool llibflg; 300extern int lwarn; 301extern bool bitfieldtype_ok; 302extern bool plibflg; 303extern bool quadflg; 304 305extern void begin_control_statement(control_statement_kind); 306extern void end_control_statement(control_statement_kind); 307extern void check_statement_reachable(void); 308extern void funcdef(sym_t *); 309extern void funcend(void); 310extern void named_label(sym_t *); 311extern void case_label(tnode_t *); 312extern void default_label(void); 313extern void if1(tnode_t *); 314extern void if2(void); 315extern void if3(bool); 316extern void switch1(tnode_t *); 317extern void switch2(void); 318extern void while1(tnode_t *); 319extern void while2(void); 320extern void do1(void); 321extern void do2(tnode_t *); 322extern void for1(tnode_t *, tnode_t *, tnode_t *); 323extern void for2(void); 324extern void do_goto(sym_t *); 325extern void do_continue(void); 326extern void do_break(void); 327extern void do_return(bool, tnode_t *); 328extern void global_clean_up_decl(bool); 329extern void argsused(int); 330extern void constcond(int); 331extern void fallthru(int); 332extern void not_reached(int); 333extern void lintlib(int); 334extern void linted(int); 335extern void varargs(int); 336extern void printflike(int); 337extern void scanflike(int); 338extern void protolib(int); 339extern void longlong(int); 340extern void bitfieldtype(int); 341 342/* 343 * init.c 344 */ 345extern void begin_initialization(sym_t *); 346extern void end_initialization(void); 347extern sym_t **current_initsym(void); 348 349extern void init_rbrace(void); 350extern void init_lbrace(void); 351extern void init_expr(tnode_t *); 352extern void begin_designation(void); 353extern void add_designator_member(sbuf_t *); 354extern void add_designator_subscript(range_t); 355 356/* 357 * emit.c 358 */ 359extern void outtype(const type_t *); 360extern void outsym(const sym_t *, scl_t, def_t); 361extern void outfdef(const sym_t *, const pos_t *, bool, bool, 362 const sym_t *); 363extern void outcall(const tnode_t *, bool, bool); 364extern void outusg(const sym_t *); 365 366/* 367 * lex.c 368 */ 369extern int lex_name(const char *, size_t); 370extern int lex_integer_constant(const char *, size_t, int); 371extern int lex_floating_constant(const char *, size_t); 372extern int lex_operator(int, op_t); 373extern int lex_string(void); 374extern int lex_wide_string(void); 375extern int lex_character_constant(void); 376extern int lex_wide_character_constant(void); 377extern void lex_directive(const char *); 378extern void lex_next_line(void); 379extern void lex_comment(void); 380extern void lex_slash_slash_comment(void); 381extern void lex_unknown_character(int); 382extern int lex_input(void); 383 384/* 385 * ckbool.c 386 */ 387extern bool typeok_scalar_strict_bool(op_t, const mod_t *, int, 388 const tnode_t *, const tnode_t *); 389extern bool fallback_symbol_strict_bool(sym_t *); 390 391/* 392 * ckctype.c 393 */ 394extern void check_ctype_function_call(const tnode_t *, const tnode_t *); 395extern void check_ctype_macro_invocation(const tnode_t *, const tnode_t *); 396 397/* 398 * ckgetopt.c 399 */ 400extern void check_getopt_begin_while(const tnode_t *); 401extern void check_getopt_begin_switch(void); 402extern void check_getopt_case_label(int64_t); 403extern void check_getopt_end_switch(void); 404extern void check_getopt_end_while(void); 405