externs1.h revision 1.149
1/* $NetBSD: externs1.h,v 1.149 2022/03/01 00:17:12 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 cleanup(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_node(const tnode_t *); 122void debug_sym(const sym_t *); 123void debug_symtab(void); 124void debug_printf(const char *fmt, ...) __printflike(1, 2); 125void debug_print_indent(void); 126void debug_indent_inc(void); 127void debug_indent_dec(void); 128void debug_enter(const char *); 129void debug_step(const char *fmt, ...) __printflike(1, 2); 130void debug_leave(const char *); 131#define debug_enter() (debug_enter)(__func__) 132#define debug_leave() (debug_leave)(__func__) 133#else 134#define debug_noop() do { } while (false) 135#define debug_node(tn) debug_noop() 136#define debug_printf(...) debug_noop() 137#define debug_print_indent() debug_noop() 138#define debug_indent_inc() debug_noop() 139#define debug_indent_dec() debug_noop() 140#define debug_enter() debug_noop() 141#define debug_step(...) debug_noop() 142#define debug_leave() debug_noop() 143#endif 144 145/* 146 * err.c 147 */ 148extern int nerr; 149extern int sytxerr; 150extern const char *const msgs[]; 151 152extern void msglist(void); 153extern void error_at(int, const pos_t *, ...); 154extern void warning_at(int, const pos_t *, ...); 155extern void message_at(int, const pos_t *, ...); 156extern void error(int, ...); 157extern void warning(int, ...); 158extern void gnuism(int, ...); 159extern void c99ism(int, ...); 160extern void c11ism(int, ...); 161extern void internal_error(const char *, int, const char *, ...) 162 __attribute__((__noreturn__,__format__(__printf__, 3, 4))); 163extern void assert_failed(const char *, int, const char *, const char *) 164 __attribute__((__noreturn__)); 165extern void update_location(const char *, int, bool, bool); 166 167/* 168 * decl.c 169 */ 170extern dinfo_t *dcs; 171extern const char *unnamed; 172extern int enumval; 173 174extern void initdecl(void); 175extern type_t *gettyp(tspec_t); 176extern type_t *block_dup_type(const type_t *); 177extern type_t *expr_dup_type(const type_t *); 178extern type_t *expr_unqualified_type(const type_t *); 179extern bool is_incomplete(const type_t *); 180extern void setcomplete(type_t *, bool); 181extern void add_storage_class(scl_t); 182extern void add_type(type_t *); 183extern void add_qualifier(tqual_t); 184extern void addpacked(void); 185extern void add_attr_used(void); 186extern void begin_declaration_level(scl_t); 187extern void end_declaration_level(void); 188extern void setasm(void); 189extern void begin_type(void); 190extern void end_type(void); 191extern int length(const type_t *, const char *); 192extern unsigned int alignment_in_bits(const type_t *); 193extern sym_t *lnklst(sym_t *, sym_t *); 194extern void check_type(sym_t *); 195extern sym_t *declarator_1_struct_union(sym_t *); 196extern sym_t *bitfield(sym_t *, int); 197extern qual_ptr *merge_qualified_pointer(qual_ptr *, qual_ptr *); 198extern sym_t *add_pointer(sym_t *, qual_ptr *); 199extern sym_t *add_array(sym_t *, bool, int); 200extern sym_t *add_function(sym_t *, sym_t *); 201extern void check_function_definition(sym_t *, bool); 202extern sym_t *declarator_name(sym_t *); 203extern sym_t *old_style_function_name(sym_t *); 204extern type_t *mktag(sym_t *, tspec_t, bool, bool); 205extern const char *storage_class_name(scl_t); 206extern type_t *complete_tag_struct_or_union(type_t *, sym_t *); 207extern type_t *complete_tag_enum(type_t *, sym_t *); 208extern sym_t *enumeration_constant(sym_t *, int, bool); 209extern void declare(sym_t *, bool, sbuf_t *); 210extern void copy_usage_info(sym_t *, sym_t *); 211extern bool check_redeclaration(sym_t *, bool *); 212extern bool eqptrtype(const type_t *, const type_t *, bool); 213extern bool eqtype(const type_t *, const type_t *, bool, bool, bool *); 214extern void complete_type(sym_t *, sym_t *); 215extern sym_t *declare_argument(sym_t *, bool); 216extern void check_func_lint_directives(void); 217extern void check_func_old_style_arguments(void); 218 219extern void declare_local(sym_t *, bool); 220extern sym_t *abstract_name(void); 221extern void global_clean_up(void); 222extern sym_t *declare_1_abstract(sym_t *); 223extern void check_size(sym_t *); 224extern void mark_as_set(sym_t *); 225extern void mark_as_used(sym_t *, bool, bool); 226extern void check_usage(dinfo_t *); 227extern void check_usage_sym(bool, sym_t *); 228extern void check_global_symbols(void); 229extern void print_previous_declaration(int, const sym_t *); 230extern int to_int_constant(tnode_t *, bool); 231 232/* 233 * tree.c 234 */ 235extern const tnode_t *before_conversion(const tnode_t *); 236extern type_t *block_derive_type(type_t *, tspec_t); 237extern type_t *expr_derive_type(type_t *, tspec_t); 238extern bool is_compiler_builtin(const char *); 239extern tnode_t *build_constant(type_t *, val_t *); 240extern tnode_t *build_name(sym_t *, bool); 241extern tnode_t *build_string(strg_t *); 242extern tnode_t *build_generic_selection(const tnode_t *, 243 struct generic_association *); 244 245extern tnode_t *build_binary(tnode_t *, op_t, bool, tnode_t *); 246extern tnode_t *build_unary(op_t, bool, tnode_t *); 247extern tnode_t *build_member_access(tnode_t *, op_t, bool, sbuf_t *); 248extern tnode_t *cconv(tnode_t *); 249extern bool is_typeok_bool_operand(const tnode_t *); 250extern bool typeok(op_t, int, const tnode_t *, const tnode_t *); 251extern tnode_t *promote(op_t, bool, tnode_t *); 252extern tnode_t *convert(op_t, int, type_t *, tnode_t *); 253extern void convert_constant(op_t, int, const type_t *, val_t *, val_t *); 254extern tnode_t *build_sizeof(const type_t *); 255extern tnode_t *build_offsetof(const type_t *, const sym_t *); 256extern tnode_t *build_alignof(const type_t *); 257extern tnode_t *cast(tnode_t *, type_t *); 258extern tnode_t *build_function_argument(tnode_t *, tnode_t *); 259extern tnode_t *build_function_call(tnode_t *, bool, tnode_t *); 260extern val_t *constant(tnode_t *, bool); 261extern void expr(tnode_t *, bool, bool, bool, bool); 262extern void check_expr_misc(const tnode_t *, bool, bool, bool, 263 bool, bool, bool); 264extern bool constant_addr(const tnode_t *, const sym_t **, ptrdiff_t *); 265extern strg_t *cat_strings(strg_t *, strg_t *); 266extern unsigned int type_size_in_bits(const type_t *); 267 268void begin_statement_expr(void); 269void do_statement_expr(tnode_t *); 270tnode_t *end_statement_expr(void); 271 272/* 273 * func.c 274 */ 275extern sym_t *funcsym; 276extern bool reached; 277extern bool warn_about_unreachable; 278extern bool seen_fallthrough; 279extern int nargusg; 280extern pos_t argsused_pos; 281extern int nvararg; 282extern pos_t vapos; 283extern int printflike_argnum; 284extern pos_t printflike_pos; 285extern int scanflike_argnum; 286extern pos_t scanflike_pos; 287extern bool constcond_flag; 288extern bool llibflg; 289extern int lwarn; 290extern bool bitfieldtype_ok; 291extern bool plibflg; 292extern bool quadflg; 293 294extern void begin_control_statement(control_statement_kind); 295extern void end_control_statement(control_statement_kind); 296extern void check_statement_reachable(void); 297extern void funcdef(sym_t *); 298extern void funcend(void); 299extern void named_label(sym_t *); 300extern void case_label(tnode_t *); 301extern void default_label(void); 302extern void if1(tnode_t *); 303extern void if2(void); 304extern void if3(bool); 305extern void switch1(tnode_t *); 306extern void switch2(void); 307extern void while1(tnode_t *); 308extern void while2(void); 309extern void do1(void); 310extern void do2(tnode_t *); 311extern void for1(tnode_t *, tnode_t *, tnode_t *); 312extern void for2(void); 313extern void do_goto(sym_t *); 314extern void do_continue(void); 315extern void do_break(void); 316extern void do_return(bool, tnode_t *); 317extern void global_clean_up_decl(bool); 318extern void argsused(int); 319extern void constcond(int); 320extern void fallthru(int); 321extern void not_reached(int); 322extern void lintlib(int); 323extern void linted(int); 324extern void varargs(int); 325extern void printflike(int); 326extern void scanflike(int); 327extern void protolib(int); 328extern void longlong(int); 329extern void bitfieldtype(int); 330 331/* 332 * init.c 333 */ 334extern void begin_initialization(sym_t *); 335extern void end_initialization(void); 336extern sym_t **current_initsym(void); 337 338extern void init_rbrace(void); 339extern void init_lbrace(void); 340extern void init_expr(tnode_t *); 341extern void begin_designation(void); 342extern void add_designator_member(sbuf_t *); 343extern void add_designator_subscript(range_t); 344 345/* 346 * emit.c 347 */ 348extern void outtype(const type_t *); 349extern void outsym(const sym_t *, scl_t, def_t); 350extern void outfdef(const sym_t *, const pos_t *, bool, bool, 351 const sym_t *); 352extern void outcall(const tnode_t *, bool, bool); 353extern void outusg(const sym_t *); 354 355/* 356 * lex.c 357 */ 358extern int lex_name(const char *, size_t); 359extern int lex_integer_constant(const char *, size_t, int); 360extern int lex_floating_constant(const char *, size_t); 361extern int lex_operator(int, op_t); 362extern int lex_string(void); 363extern int lex_wide_string(void); 364extern int lex_character_constant(void); 365extern int lex_wide_character_constant(void); 366extern void lex_directive(const char *); 367extern void lex_next_line(void); 368extern void lex_comment(void); 369extern void lex_slash_slash_comment(void); 370extern void lex_unknown_character(int); 371extern int lex_input(void); 372 373/* 374 * ckbool.c 375 */ 376extern bool typeok_scalar_strict_bool(op_t, const mod_t *, int, 377 const tnode_t *, const tnode_t *); 378extern bool fallback_symbol_strict_bool(sym_t *); 379 380/* 381 * ckctype.c 382 */ 383extern void check_ctype_function_call(const tnode_t *, const tnode_t *); 384extern void check_ctype_macro_invocation(const tnode_t *, const tnode_t *); 385 386/* 387 * ckgetopt.c 388 */ 389extern void check_getopt_begin_while(const tnode_t *); 390extern void check_getopt_begin_switch(void); 391extern void check_getopt_case_label(int64_t); 392extern void check_getopt_end_switch(void); 393extern void check_getopt_end_while(void); 394