externs1.h revision 1.144
1/* $NetBSD: externs1.h,v 1.144 2021/12/21 21:04:08 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 int 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 *getblk(size_t); 104extern void *getlblk(size_t, size_t); 105extern void freeblk(void); 106extern void freelblk(int); 107 108extern void *expr_zalloc(size_t); 109extern tnode_t *expr_zalloc_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 119void debug_node(const tnode_t *); 120void debug_printf(const char *fmt, ...) __printflike(1, 2); 121void debug_print_indent(void); 122void debug_indent_inc(void); 123void debug_indent_dec(void); 124void debug_enter(const char *); 125void debug_step(const char *fmt, ...) __printflike(1, 2); 126void debug_leave(const char *); 127#define debug_enter() (debug_enter)(__func__) 128#define debug_leave() (debug_leave)(__func__) 129#else 130#define debug_noop() do { } while (false) 131#define debug_node(tn) debug_noop() 132#define debug_printf(...) debug_noop() 133#define debug_print_indent() debug_noop() 134#define debug_indent_inc() debug_noop() 135#define debug_indent_dec() debug_noop() 136#define debug_enter() debug_noop() 137#define debug_step(...) debug_noop() 138#define debug_leave() debug_noop() 139#endif 140 141/* 142 * err.c 143 */ 144extern int nerr; 145extern int sytxerr; 146extern const char *const msgs[]; 147 148extern void msglist(void); 149extern void error_at(int, const pos_t *, ...); 150extern void warning_at(int, const pos_t *, ...); 151extern void message_at(int, const pos_t *, ...); 152extern void error(int, ...); 153extern void warning(int, ...); 154extern void gnuism(int, ...); 155extern void c99ism(int, ...); 156extern void c11ism(int, ...); 157extern void internal_error(const char *, int, const char *, ...) 158 __attribute__((__noreturn__,__format__(__printf__, 3, 4))); 159extern void assert_failed(const char *, int, const char *, const char *) 160 __attribute__((__noreturn__)); 161extern void update_location(const char *, int, bool, bool); 162 163/* 164 * decl.c 165 */ 166extern dinfo_t *dcs; 167extern const char *unnamed; 168extern int enumval; 169 170extern void initdecl(void); 171extern type_t *gettyp(tspec_t); 172extern type_t *dup_type(const type_t *); 173extern type_t *expr_dup_type(const type_t *); 174extern type_t *expr_unqualified_type(const type_t *); 175extern bool is_incomplete(const type_t *); 176extern void setcomplete(type_t *, bool); 177extern void add_storage_class(scl_t); 178extern void add_type(type_t *); 179extern void add_qualifier(tqual_t); 180extern void addpacked(void); 181extern void add_attr_used(void); 182extern void begin_declaration_level(scl_t); 183extern void end_declaration_level(void); 184extern void setasm(void); 185extern void begin_type(void); 186extern void end_type(void); 187extern int length(const type_t *, const char *); 188extern unsigned int alignment_in_bits(const type_t *); 189extern sym_t *lnklst(sym_t *, sym_t *); 190extern void check_type(sym_t *); 191extern sym_t *declarator_1_struct_union(sym_t *); 192extern sym_t *bitfield(sym_t *, int); 193extern qual_ptr *merge_qualified_pointer(qual_ptr *, qual_ptr *); 194extern sym_t *add_pointer(sym_t *, qual_ptr *); 195extern sym_t *add_array(sym_t *, bool, int); 196extern sym_t *add_function(sym_t *, sym_t *); 197extern void check_function_definition(sym_t *, bool); 198extern sym_t *declarator_name(sym_t *); 199extern sym_t *old_style_function_name(sym_t *); 200extern type_t *mktag(sym_t *, tspec_t, bool, bool); 201extern const char *storage_class_name(scl_t); 202extern type_t *complete_tag_struct_or_union(type_t *, sym_t *); 203extern type_t *complete_tag_enum(type_t *, sym_t *); 204extern sym_t *enumeration_constant(sym_t *, int, bool); 205extern void declare(sym_t *, bool, sbuf_t *); 206extern void copy_usage_info(sym_t *, sym_t *); 207extern bool check_redeclaration(sym_t *, bool *); 208extern bool eqptrtype(const type_t *, const type_t *, bool); 209extern bool eqtype(const type_t *, const type_t *, bool, bool, bool *); 210extern void complete_type(sym_t *, sym_t *); 211extern sym_t *declare_argument(sym_t *, bool); 212extern void check_func_lint_directives(void); 213extern void check_func_old_style_arguments(void); 214 215extern void declare_local(sym_t *, bool); 216extern sym_t *abstract_name(void); 217extern void global_clean_up(void); 218extern sym_t *declare_1_abstract(sym_t *); 219extern void check_size(sym_t *); 220extern void mark_as_set(sym_t *); 221extern void mark_as_used(sym_t *, bool, bool); 222extern void check_usage(dinfo_t *); 223extern void check_usage_sym(bool, sym_t *); 224extern void check_global_symbols(void); 225extern void print_previous_declaration(int, const sym_t *); 226extern int to_int_constant(tnode_t *, bool); 227extern const char *scl_name(scl_t); 228 229/* 230 * tree.c 231 */ 232extern const tnode_t *before_conversion(const tnode_t *); 233extern type_t *derive_type(type_t *, tspec_t); 234extern type_t *expr_derive_type(type_t *, tspec_t); 235extern bool is_compiler_builtin(const char *); 236extern tnode_t *build_constant(type_t *, val_t *); 237extern tnode_t *build_name(sym_t *, bool); 238extern tnode_t *build_string(strg_t *); 239extern tnode_t *build_generic_selection(const tnode_t *, 240 struct generic_association *); 241 242extern tnode_t *build_binary(tnode_t *, op_t, bool, tnode_t *); 243extern tnode_t *build_unary(op_t, bool, tnode_t *); 244extern tnode_t *build_member_access(tnode_t *, op_t, bool, sbuf_t *); 245extern tnode_t *cconv(tnode_t *); 246extern bool is_typeok_bool_operand(const tnode_t *); 247extern bool typeok(op_t, int, const tnode_t *, const tnode_t *); 248extern tnode_t *promote(op_t, bool, tnode_t *); 249extern tnode_t *convert(op_t, int, type_t *, tnode_t *); 250extern void convert_constant(op_t, int, const type_t *, val_t *, val_t *); 251extern tnode_t *build_sizeof(const type_t *); 252extern tnode_t *build_offsetof(const type_t *, const sym_t *); 253extern tnode_t *build_alignof(const type_t *); 254extern tnode_t *cast(tnode_t *, type_t *); 255extern tnode_t *build_function_argument(tnode_t *, tnode_t *); 256extern tnode_t *build_function_call(tnode_t *, bool, tnode_t *); 257extern val_t *constant(tnode_t *, bool); 258extern void expr(tnode_t *, bool, bool, bool, bool); 259extern void check_expr_misc(const tnode_t *, bool, bool, bool, 260 bool, bool, bool); 261extern bool constant_addr(const tnode_t *, const sym_t **, ptrdiff_t *); 262extern strg_t *cat_strings(strg_t *, strg_t *); 263extern unsigned int type_size_in_bits(const type_t *); 264 265/* 266 * func.c 267 */ 268extern sym_t *funcsym; 269extern bool reached; 270extern bool warn_about_unreachable; 271extern bool seen_fallthrough; 272extern int nargusg; 273extern pos_t argsused_pos; 274extern int nvararg; 275extern pos_t vapos; 276extern int printflike_argnum; 277extern pos_t printflike_pos; 278extern int scanflike_argnum; 279extern pos_t scanflike_pos; 280extern bool constcond_flag; 281extern bool llibflg; 282extern int lwarn; 283extern bool bitfieldtype_ok; 284extern bool plibflg; 285extern bool quadflg; 286 287extern void begin_control_statement(control_statement_kind); 288extern void end_control_statement(control_statement_kind); 289extern void check_statement_reachable(void); 290extern void funcdef(sym_t *); 291extern void funcend(void); 292extern void named_label(sym_t *); 293extern void case_label(tnode_t *); 294extern void default_label(void); 295extern void if1(tnode_t *); 296extern void if2(void); 297extern void if3(bool); 298extern void switch1(tnode_t *); 299extern void switch2(void); 300extern void while1(tnode_t *); 301extern void while2(void); 302extern void do1(void); 303extern void do2(tnode_t *); 304extern void for1(tnode_t *, tnode_t *, tnode_t *); 305extern void for2(void); 306extern void do_goto(sym_t *); 307extern void do_continue(void); 308extern void do_break(void); 309extern void do_return(bool, tnode_t *); 310extern void global_clean_up_decl(bool); 311extern void argsused(int); 312extern void constcond(int); 313extern void fallthru(int); 314extern void not_reached(int); 315extern void lintlib(int); 316extern void linted(int); 317extern void varargs(int); 318extern void printflike(int); 319extern void scanflike(int); 320extern void protolib(int); 321extern void longlong(int); 322extern void bitfieldtype(int); 323 324/* 325 * init.c 326 */ 327extern void begin_initialization(sym_t *); 328extern void end_initialization(void); 329extern sym_t **current_initsym(void); 330 331extern void init_rbrace(void); 332extern void init_lbrace(void); 333extern void init_expr(tnode_t *); 334extern void begin_designation(void); 335extern void add_designator_member(sbuf_t *); 336extern void add_designator_subscript(range_t); 337 338/* 339 * emit.c 340 */ 341extern void outtype(const type_t *); 342extern void outsym(const sym_t *, scl_t, def_t); 343extern void outfdef(const sym_t *, const pos_t *, bool, bool, 344 const sym_t *); 345extern void outcall(const tnode_t *, bool, bool); 346extern void outusg(const sym_t *); 347 348/* 349 * lex.c 350 */ 351extern int lex_name(const char *, size_t); 352extern int lex_integer_constant(const char *, size_t, int); 353extern int lex_floating_constant(const char *, size_t); 354extern int lex_operator(int, op_t); 355extern int lex_string(void); 356extern int lex_wide_string(void); 357extern int lex_character_constant(void); 358extern int lex_wide_character_constant(void); 359extern void lex_directive(const char *); 360extern void lex_next_line(void); 361extern void lex_comment(void); 362extern void lex_slash_slash_comment(void); 363extern void lex_unknown_character(int); 364extern int lex_input(void); 365 366/* 367 * ckbool.c 368 */ 369extern bool typeok_scalar_strict_bool(op_t, const mod_t *, int, 370 const tnode_t *, const tnode_t *); 371extern bool fallback_symbol_strict_bool(sym_t *); 372 373/* 374 * ckctype.c 375 */ 376extern void check_ctype_function_call(const tnode_t *, const tnode_t *); 377extern void check_ctype_macro_invocation(const tnode_t *, const tnode_t *); 378 379/* 380 * ckgetopt.c 381 */ 382extern void check_getopt_begin_while(const tnode_t *); 383extern void check_getopt_begin_switch(void); 384extern void check_getopt_case_label(int64_t); 385extern void check_getopt_end_switch(void); 386extern void check_getopt_end_while(void); 387