externs1.h revision 1.151
1/* $NetBSD: externs1.h,v 1.151 2022/04/02 12:24:55 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 c11flag; 41extern bool eflag; 42extern bool Fflag; 43extern bool gflag; 44extern bool hflag; 45extern bool pflag; 46extern bool rflag; 47extern bool sflag; 48extern bool tflag; 49extern bool uflag; 50extern bool vflag; 51extern bool yflag; 52extern bool wflag; 53extern bool zflag; 54extern bool Sflag; 55extern bool Tflag; 56extern bool Pflag; 57 58extern void norecover(void); 59 60/* 61 * cgram.y 62 */ 63extern int block_level; 64extern size_t mem_block_level; 65extern int yydebug; 66 67extern int yyerror(const char *); 68extern int yyparse(void); 69 70/* 71 * scan.l 72 */ 73extern bool in_gcc_attribute; 74extern pos_t curr_pos; 75extern pos_t csrc_pos; 76extern bool in_system_header; 77extern symt_t symtyp; 78extern FILE *yyin; 79 80extern void initscan(void); 81extern int64_t convert_integer(int64_t, tspec_t, unsigned int); 82extern void clear_warn_flags(void); 83extern sym_t *getsym(sbuf_t *); 84extern void clean_up_after_error(void); 85extern sym_t *pushdown(const sym_t *); 86extern sym_t *mktempsym(type_t *); 87extern void rmsym(sym_t *); 88extern void rmsyms(sym_t *); 89extern void inssym(int, sym_t *); 90extern void freeyyv(void *, int); 91extern int yylex(void); 92 93/* 94 * mem1.c 95 */ 96extern const char *record_filename(const char *, size_t); 97extern int get_filename_id(const char *); 98extern void add_directory_replacement(char *); 99extern const char *transform_filename(const char *, size_t); 100 101extern void initmem(void); 102 103extern void *block_zero_alloc(size_t); 104extern void *level_zero_alloc(size_t, size_t); 105extern void level_free_all(size_t); 106 107extern void *expr_zero_alloc(size_t); 108extern tnode_t *expr_alloc_tnode(void); 109extern void expr_free_all(void); 110extern struct memory_block *expr_save_memory(void); 111extern void expr_restore_memory(struct memory_block *); 112 113/* 114 * debug.c 115 */ 116 117#ifdef DEBUG 118const char *scl_name(scl_t); 119const char *symt_name(symt_t); 120const char *tqual_name(tqual_t); 121void debug_dinfo(const dinfo_t *); 122void debug_node(const tnode_t *); 123void debug_sym(const char *, const sym_t *, const char *); 124void debug_symtab(void); 125void debug_printf(const char *fmt, ...) __printflike(1, 2); 126void debug_print_indent(void); 127void debug_indent_inc(void); 128void debug_indent_dec(void); 129void debug_enter(const char *); 130void debug_step(const char *fmt, ...) __printflike(1, 2); 131void debug_leave(const char *); 132#define debug_enter() (debug_enter)(__func__) 133#define debug_leave() (debug_leave)(__func__) 134#else 135#define debug_noop() do { } while (false) 136#define debug_dinfo(d) debug_noop() 137#define debug_sym(p, sym, s) debug_noop() 138#define debug_symtab() debug_noop() 139#define debug_node(tn) debug_noop() 140#define debug_printf(...) debug_noop() 141#define debug_print_indent() debug_noop() 142#define debug_indent_inc() debug_noop() 143#define debug_indent_dec() debug_noop() 144#define debug_enter() debug_noop() 145#define debug_step(...) debug_noop() 146#define debug_leave() debug_noop() 147#endif 148 149/* 150 * err.c 151 */ 152extern int nerr; 153extern int sytxerr; 154extern const char *const msgs[]; 155 156extern void msglist(void); 157extern void error_at(int, const pos_t *, ...); 158extern void warning_at(int, const pos_t *, ...); 159extern void message_at(int, const pos_t *, ...); 160extern void error(int, ...); 161extern void warning(int, ...); 162extern void gnuism(int, ...); 163extern void c99ism(int, ...); 164extern void c11ism(int, ...); 165extern void internal_error(const char *, int, const char *, ...) 166 __attribute__((__noreturn__,__format__(__printf__, 3, 4))); 167extern void assert_failed(const char *, int, const char *, const char *) 168 __attribute__((__noreturn__)); 169extern void update_location(const char *, int, bool, bool); 170 171/* 172 * decl.c 173 */ 174extern dinfo_t *dcs; 175extern const char *unnamed; 176extern int enumval; 177 178extern void initdecl(void); 179extern type_t *gettyp(tspec_t); 180extern type_t *block_dup_type(const type_t *); 181extern type_t *expr_dup_type(const type_t *); 182extern type_t *expr_unqualified_type(const type_t *); 183extern bool is_incomplete(const type_t *); 184extern void setcomplete(type_t *, bool); 185extern void add_storage_class(scl_t); 186extern void add_type(type_t *); 187extern void add_qualifier(tqual_t); 188extern void addpacked(void); 189extern void add_attr_used(void); 190extern void begin_declaration_level(scl_t); 191extern void end_declaration_level(void); 192extern void setasm(void); 193extern void begin_type(void); 194extern void end_type(void); 195extern int length(const type_t *, const char *); 196extern unsigned int alignment_in_bits(const type_t *); 197extern sym_t *lnklst(sym_t *, sym_t *); 198extern void check_type(sym_t *); 199extern sym_t *declarator_1_struct_union(sym_t *); 200extern sym_t *bitfield(sym_t *, int); 201extern qual_ptr *merge_qualified_pointer(qual_ptr *, qual_ptr *); 202extern sym_t *add_pointer(sym_t *, qual_ptr *); 203extern sym_t *add_array(sym_t *, bool, int); 204extern sym_t *add_function(sym_t *, sym_t *); 205extern void check_function_definition(sym_t *, bool); 206extern sym_t *declarator_name(sym_t *); 207extern sym_t *old_style_function_name(sym_t *); 208extern type_t *mktag(sym_t *, tspec_t, bool, bool); 209extern const char *storage_class_name(scl_t); 210extern type_t *complete_tag_struct_or_union(type_t *, sym_t *); 211extern type_t *complete_tag_enum(type_t *, sym_t *); 212extern sym_t *enumeration_constant(sym_t *, int, bool); 213extern void declare(sym_t *, bool, sbuf_t *); 214extern void copy_usage_info(sym_t *, sym_t *); 215extern bool check_redeclaration(sym_t *, bool *); 216extern bool eqptrtype(const type_t *, const type_t *, bool); 217extern bool eqtype(const type_t *, const type_t *, bool, bool, bool *); 218extern void complete_type(sym_t *, sym_t *); 219extern sym_t *declare_argument(sym_t *, bool); 220extern void check_func_lint_directives(void); 221extern void check_func_old_style_arguments(void); 222 223extern void declare_local(sym_t *, bool); 224extern sym_t *abstract_name(void); 225extern void global_clean_up(void); 226extern sym_t *declare_1_abstract(sym_t *); 227extern void check_size(sym_t *); 228extern void mark_as_set(sym_t *); 229extern void mark_as_used(sym_t *, bool, bool); 230extern void check_usage(dinfo_t *); 231extern void check_usage_sym(bool, sym_t *); 232extern void check_global_symbols(void); 233extern void print_previous_declaration(int, const sym_t *); 234extern int to_int_constant(tnode_t *, bool); 235 236/* 237 * tree.c 238 */ 239extern const tnode_t *before_conversion(const tnode_t *); 240extern type_t *block_derive_type(type_t *, tspec_t); 241extern type_t *expr_derive_type(type_t *, tspec_t); 242extern bool is_compiler_builtin(const char *); 243extern tnode_t *build_constant(type_t *, val_t *); 244extern tnode_t *build_name(sym_t *, bool); 245extern tnode_t *build_string(strg_t *); 246extern tnode_t *build_generic_selection(const tnode_t *, 247 struct generic_association *); 248 249extern tnode_t *build_binary(tnode_t *, op_t, bool, tnode_t *); 250extern tnode_t *build_unary(op_t, bool, tnode_t *); 251extern tnode_t *build_member_access(tnode_t *, op_t, bool, sbuf_t *); 252extern tnode_t *cconv(tnode_t *); 253extern bool is_typeok_bool_operand(const tnode_t *); 254extern bool typeok(op_t, int, const tnode_t *, const tnode_t *); 255extern tnode_t *promote(op_t, bool, tnode_t *); 256extern tnode_t *convert(op_t, int, type_t *, tnode_t *); 257extern void convert_constant(op_t, int, const type_t *, val_t *, val_t *); 258extern tnode_t *build_sizeof(const type_t *); 259extern tnode_t *build_offsetof(const type_t *, const sym_t *); 260extern tnode_t *build_alignof(const type_t *); 261extern tnode_t *cast(tnode_t *, type_t *); 262extern tnode_t *build_function_argument(tnode_t *, tnode_t *); 263extern tnode_t *build_function_call(tnode_t *, bool, tnode_t *); 264extern val_t *constant(tnode_t *, bool); 265extern void expr(tnode_t *, bool, bool, bool, bool); 266extern void check_expr_misc(const tnode_t *, bool, bool, bool, 267 bool, bool, bool); 268extern bool constant_addr(const tnode_t *, const sym_t **, ptrdiff_t *); 269extern strg_t *cat_strings(strg_t *, strg_t *); 270extern unsigned int type_size_in_bits(const type_t *); 271 272void begin_statement_expr(void); 273void do_statement_expr(tnode_t *); 274tnode_t *end_statement_expr(void); 275 276/* 277 * func.c 278 */ 279extern sym_t *funcsym; 280extern bool reached; 281extern bool warn_about_unreachable; 282extern bool seen_fallthrough; 283extern int nargusg; 284extern pos_t argsused_pos; 285extern int nvararg; 286extern pos_t vapos; 287extern int printflike_argnum; 288extern pos_t printflike_pos; 289extern int scanflike_argnum; 290extern pos_t scanflike_pos; 291extern bool constcond_flag; 292extern bool llibflg; 293extern int lwarn; 294extern bool bitfieldtype_ok; 295extern bool plibflg; 296extern bool quadflg; 297 298extern void begin_control_statement(control_statement_kind); 299extern void end_control_statement(control_statement_kind); 300extern void check_statement_reachable(void); 301extern void funcdef(sym_t *); 302extern void funcend(void); 303extern void named_label(sym_t *); 304extern void case_label(tnode_t *); 305extern void default_label(void); 306extern void if1(tnode_t *); 307extern void if2(void); 308extern void if3(bool); 309extern void switch1(tnode_t *); 310extern void switch2(void); 311extern void while1(tnode_t *); 312extern void while2(void); 313extern void do1(void); 314extern void do2(tnode_t *); 315extern void for1(tnode_t *, tnode_t *, tnode_t *); 316extern void for2(void); 317extern void do_goto(sym_t *); 318extern void do_continue(void); 319extern void do_break(void); 320extern void do_return(bool, tnode_t *); 321extern void global_clean_up_decl(bool); 322extern void argsused(int); 323extern void constcond(int); 324extern void fallthru(int); 325extern void not_reached(int); 326extern void lintlib(int); 327extern void linted(int); 328extern void varargs(int); 329extern void printflike(int); 330extern void scanflike(int); 331extern void protolib(int); 332extern void longlong(int); 333extern void bitfieldtype(int); 334 335/* 336 * init.c 337 */ 338extern void begin_initialization(sym_t *); 339extern void end_initialization(void); 340extern sym_t **current_initsym(void); 341 342extern void init_rbrace(void); 343extern void init_lbrace(void); 344extern void init_expr(tnode_t *); 345extern void begin_designation(void); 346extern void add_designator_member(sbuf_t *); 347extern void add_designator_subscript(range_t); 348 349/* 350 * emit.c 351 */ 352extern void outtype(const type_t *); 353extern void outsym(const sym_t *, scl_t, def_t); 354extern void outfdef(const sym_t *, const pos_t *, bool, bool, 355 const sym_t *); 356extern void outcall(const tnode_t *, bool, bool); 357extern void outusg(const sym_t *); 358 359/* 360 * lex.c 361 */ 362extern int lex_name(const char *, size_t); 363extern int lex_integer_constant(const char *, size_t, int); 364extern int lex_floating_constant(const char *, size_t); 365extern int lex_operator(int, op_t); 366extern int lex_string(void); 367extern int lex_wide_string(void); 368extern int lex_character_constant(void); 369extern int lex_wide_character_constant(void); 370extern void lex_directive(const char *); 371extern void lex_next_line(void); 372extern void lex_comment(void); 373extern void lex_slash_slash_comment(void); 374extern void lex_unknown_character(int); 375extern int lex_input(void); 376 377/* 378 * ckbool.c 379 */ 380extern bool typeok_scalar_strict_bool(op_t, const mod_t *, int, 381 const tnode_t *, const tnode_t *); 382extern bool fallback_symbol_strict_bool(sym_t *); 383 384/* 385 * ckctype.c 386 */ 387extern void check_ctype_function_call(const tnode_t *, const tnode_t *); 388extern void check_ctype_macro_invocation(const tnode_t *, const tnode_t *); 389 390/* 391 * ckgetopt.c 392 */ 393extern void check_getopt_begin_while(const tnode_t *); 394extern void check_getopt_begin_switch(void); 395extern void check_getopt_case_label(int64_t); 396extern void check_getopt_end_switch(void); 397extern void check_getopt_end_while(void); 398