externs1.h revision 1.148
1/* $NetBSD: externs1.h,v 1.148 2022/02/27 10:31:58 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 118void debug_node(const tnode_t *); 119void debug_printf(const char *fmt, ...) __printflike(1, 2); 120void debug_print_indent(void); 121void debug_indent_inc(void); 122void debug_indent_dec(void); 123void debug_enter(const char *); 124void debug_step(const char *fmt, ...) __printflike(1, 2); 125void debug_leave(const char *); 126#define debug_enter() (debug_enter)(__func__) 127#define debug_leave() (debug_leave)(__func__) 128#else 129#define debug_noop() do { } while (false) 130#define debug_node(tn) debug_noop() 131#define debug_printf(...) debug_noop() 132#define debug_print_indent() debug_noop() 133#define debug_indent_inc() debug_noop() 134#define debug_indent_dec() debug_noop() 135#define debug_enter() debug_noop() 136#define debug_step(...) debug_noop() 137#define debug_leave() debug_noop() 138#endif 139 140/* 141 * err.c 142 */ 143extern int nerr; 144extern int sytxerr; 145extern const char *const msgs[]; 146 147extern void msglist(void); 148extern void error_at(int, const pos_t *, ...); 149extern void warning_at(int, const pos_t *, ...); 150extern void message_at(int, const pos_t *, ...); 151extern void error(int, ...); 152extern void warning(int, ...); 153extern void gnuism(int, ...); 154extern void c99ism(int, ...); 155extern void c11ism(int, ...); 156extern void internal_error(const char *, int, const char *, ...) 157 __attribute__((__noreturn__,__format__(__printf__, 3, 4))); 158extern void assert_failed(const char *, int, const char *, const char *) 159 __attribute__((__noreturn__)); 160extern void update_location(const char *, int, bool, bool); 161 162/* 163 * decl.c 164 */ 165extern dinfo_t *dcs; 166extern const char *unnamed; 167extern int enumval; 168 169extern void initdecl(void); 170extern type_t *gettyp(tspec_t); 171extern type_t *block_dup_type(const type_t *); 172extern type_t *expr_dup_type(const type_t *); 173extern type_t *expr_unqualified_type(const type_t *); 174extern bool is_incomplete(const type_t *); 175extern void setcomplete(type_t *, bool); 176extern void add_storage_class(scl_t); 177extern void add_type(type_t *); 178extern void add_qualifier(tqual_t); 179extern void addpacked(void); 180extern void add_attr_used(void); 181extern void begin_declaration_level(scl_t); 182extern void end_declaration_level(void); 183extern void setasm(void); 184extern void begin_type(void); 185extern void end_type(void); 186extern int length(const type_t *, const char *); 187extern unsigned int alignment_in_bits(const type_t *); 188extern sym_t *lnklst(sym_t *, sym_t *); 189extern void check_type(sym_t *); 190extern sym_t *declarator_1_struct_union(sym_t *); 191extern sym_t *bitfield(sym_t *, int); 192extern qual_ptr *merge_qualified_pointer(qual_ptr *, qual_ptr *); 193extern sym_t *add_pointer(sym_t *, qual_ptr *); 194extern sym_t *add_array(sym_t *, bool, int); 195extern sym_t *add_function(sym_t *, sym_t *); 196extern void check_function_definition(sym_t *, bool); 197extern sym_t *declarator_name(sym_t *); 198extern sym_t *old_style_function_name(sym_t *); 199extern type_t *mktag(sym_t *, tspec_t, bool, bool); 200extern const char *storage_class_name(scl_t); 201extern type_t *complete_tag_struct_or_union(type_t *, sym_t *); 202extern type_t *complete_tag_enum(type_t *, sym_t *); 203extern sym_t *enumeration_constant(sym_t *, int, bool); 204extern void declare(sym_t *, bool, sbuf_t *); 205extern void copy_usage_info(sym_t *, sym_t *); 206extern bool check_redeclaration(sym_t *, bool *); 207extern bool eqptrtype(const type_t *, const type_t *, bool); 208extern bool eqtype(const type_t *, const type_t *, bool, bool, bool *); 209extern void complete_type(sym_t *, sym_t *); 210extern sym_t *declare_argument(sym_t *, bool); 211extern void check_func_lint_directives(void); 212extern void check_func_old_style_arguments(void); 213 214extern void declare_local(sym_t *, bool); 215extern sym_t *abstract_name(void); 216extern void global_clean_up(void); 217extern sym_t *declare_1_abstract(sym_t *); 218extern void check_size(sym_t *); 219extern void mark_as_set(sym_t *); 220extern void mark_as_used(sym_t *, bool, bool); 221extern void check_usage(dinfo_t *); 222extern void check_usage_sym(bool, sym_t *); 223extern void check_global_symbols(void); 224extern void print_previous_declaration(int, const sym_t *); 225extern int to_int_constant(tnode_t *, bool); 226extern const char *scl_name(scl_t); 227 228/* 229 * tree.c 230 */ 231extern const tnode_t *before_conversion(const tnode_t *); 232extern type_t *block_derive_type(type_t *, tspec_t); 233extern type_t *expr_derive_type(type_t *, tspec_t); 234extern bool is_compiler_builtin(const char *); 235extern tnode_t *build_constant(type_t *, val_t *); 236extern tnode_t *build_name(sym_t *, bool); 237extern tnode_t *build_string(strg_t *); 238extern tnode_t *build_generic_selection(const tnode_t *, 239 struct generic_association *); 240 241extern tnode_t *build_binary(tnode_t *, op_t, bool, tnode_t *); 242extern tnode_t *build_unary(op_t, bool, tnode_t *); 243extern tnode_t *build_member_access(tnode_t *, op_t, bool, sbuf_t *); 244extern tnode_t *cconv(tnode_t *); 245extern bool is_typeok_bool_operand(const tnode_t *); 246extern bool typeok(op_t, int, const tnode_t *, const tnode_t *); 247extern tnode_t *promote(op_t, bool, tnode_t *); 248extern tnode_t *convert(op_t, int, type_t *, tnode_t *); 249extern void convert_constant(op_t, int, const type_t *, val_t *, val_t *); 250extern tnode_t *build_sizeof(const type_t *); 251extern tnode_t *build_offsetof(const type_t *, const sym_t *); 252extern tnode_t *build_alignof(const type_t *); 253extern tnode_t *cast(tnode_t *, type_t *); 254extern tnode_t *build_function_argument(tnode_t *, tnode_t *); 255extern tnode_t *build_function_call(tnode_t *, bool, tnode_t *); 256extern val_t *constant(tnode_t *, bool); 257extern void expr(tnode_t *, bool, bool, bool, bool); 258extern void check_expr_misc(const tnode_t *, bool, bool, bool, 259 bool, bool, bool); 260extern bool constant_addr(const tnode_t *, const sym_t **, ptrdiff_t *); 261extern strg_t *cat_strings(strg_t *, strg_t *); 262extern unsigned int type_size_in_bits(const type_t *); 263 264void begin_statement_expr(void); 265void do_statement_expr(tnode_t *); 266tnode_t *end_statement_expr(void); 267 268/* 269 * func.c 270 */ 271extern sym_t *funcsym; 272extern bool reached; 273extern bool warn_about_unreachable; 274extern bool seen_fallthrough; 275extern int nargusg; 276extern pos_t argsused_pos; 277extern int nvararg; 278extern pos_t vapos; 279extern int printflike_argnum; 280extern pos_t printflike_pos; 281extern int scanflike_argnum; 282extern pos_t scanflike_pos; 283extern bool constcond_flag; 284extern bool llibflg; 285extern int lwarn; 286extern bool bitfieldtype_ok; 287extern bool plibflg; 288extern bool quadflg; 289 290extern void begin_control_statement(control_statement_kind); 291extern void end_control_statement(control_statement_kind); 292extern void check_statement_reachable(void); 293extern void funcdef(sym_t *); 294extern void funcend(void); 295extern void named_label(sym_t *); 296extern void case_label(tnode_t *); 297extern void default_label(void); 298extern void if1(tnode_t *); 299extern void if2(void); 300extern void if3(bool); 301extern void switch1(tnode_t *); 302extern void switch2(void); 303extern void while1(tnode_t *); 304extern void while2(void); 305extern void do1(void); 306extern void do2(tnode_t *); 307extern void for1(tnode_t *, tnode_t *, tnode_t *); 308extern void for2(void); 309extern void do_goto(sym_t *); 310extern void do_continue(void); 311extern void do_break(void); 312extern void do_return(bool, tnode_t *); 313extern void global_clean_up_decl(bool); 314extern void argsused(int); 315extern void constcond(int); 316extern void fallthru(int); 317extern void not_reached(int); 318extern void lintlib(int); 319extern void linted(int); 320extern void varargs(int); 321extern void printflike(int); 322extern void scanflike(int); 323extern void protolib(int); 324extern void longlong(int); 325extern void bitfieldtype(int); 326 327/* 328 * init.c 329 */ 330extern void begin_initialization(sym_t *); 331extern void end_initialization(void); 332extern sym_t **current_initsym(void); 333 334extern void init_rbrace(void); 335extern void init_lbrace(void); 336extern void init_expr(tnode_t *); 337extern void begin_designation(void); 338extern void add_designator_member(sbuf_t *); 339extern void add_designator_subscript(range_t); 340 341/* 342 * emit.c 343 */ 344extern void outtype(const type_t *); 345extern void outsym(const sym_t *, scl_t, def_t); 346extern void outfdef(const sym_t *, const pos_t *, bool, bool, 347 const sym_t *); 348extern void outcall(const tnode_t *, bool, bool); 349extern void outusg(const sym_t *); 350 351/* 352 * lex.c 353 */ 354extern int lex_name(const char *, size_t); 355extern int lex_integer_constant(const char *, size_t, int); 356extern int lex_floating_constant(const char *, size_t); 357extern int lex_operator(int, op_t); 358extern int lex_string(void); 359extern int lex_wide_string(void); 360extern int lex_character_constant(void); 361extern int lex_wide_character_constant(void); 362extern void lex_directive(const char *); 363extern void lex_next_line(void); 364extern void lex_comment(void); 365extern void lex_slash_slash_comment(void); 366extern void lex_unknown_character(int); 367extern int lex_input(void); 368 369/* 370 * ckbool.c 371 */ 372extern bool typeok_scalar_strict_bool(op_t, const mod_t *, int, 373 const tnode_t *, const tnode_t *); 374extern bool fallback_symbol_strict_bool(sym_t *); 375 376/* 377 * ckctype.c 378 */ 379extern void check_ctype_function_call(const tnode_t *, const tnode_t *); 380extern void check_ctype_macro_invocation(const tnode_t *, const tnode_t *); 381 382/* 383 * ckgetopt.c 384 */ 385extern void check_getopt_begin_while(const tnode_t *); 386extern void check_getopt_begin_switch(void); 387extern void check_getopt_case_label(int64_t); 388extern void check_getopt_end_switch(void); 389extern void check_getopt_end_while(void); 390