externs1.h revision 1.221
1/* $NetBSD: externs1.h,v 1.221 2024/03/29 08:35:32 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#include <signal.h> 35 36/* 37 * main1.c 38 */ 39extern bool Fflag; 40extern bool Pflag; 41extern bool Tflag; 42extern int aflag; 43extern bool bflag; 44extern bool cflag; 45extern bool eflag; 46extern bool hflag; 47extern bool pflag; 48extern bool rflag; 49extern bool uflag; 50extern bool vflag; 51extern bool wflag; 52extern bool yflag; 53extern bool zflag; 54 55extern bool allow_trad; 56extern bool allow_c90; 57extern bool allow_c99; 58extern bool allow_c11; 59extern bool allow_c23; 60extern bool allow_gcc; 61 62extern sig_atomic_t fpe; 63 64void norecover(void); 65 66/* 67 * cgram.y 68 */ 69extern int block_level; 70extern size_t mem_block_level; 71extern int yydebug; 72 73int yyerror(const char *); 74int yyparse(void); 75 76/* 77 * lex.c 78 */ 79extern bool in_gcc_attribute; 80extern pos_t curr_pos; 81extern pos_t csrc_pos; 82extern bool in_system_header; 83extern symbol_kind sym_kind; 84extern FILE *yyin; 85 86void init_lex(void); 87int64_t convert_integer(int64_t, tspec_t, unsigned int); 88void reset_suppressions(void); 89sym_t *getsym(sbuf_t *); 90void clean_up_after_error(void); 91sym_t *pushdown(const sym_t *); 92sym_t *mktempsym(type_t *); 93void symtab_remove_forever(sym_t *); 94void symtab_remove_level(sym_t *); 95void inssym(int, sym_t *); 96void freeyyv(void *, int); 97int yylex(void); 98 99/* 100 * mem1.c 101 */ 102const char *record_filename(const char *, size_t); 103int get_filename_id(const char *); 104void add_directory_replacement(char *); 105const char *transform_filename(const char *, size_t); 106 107#ifdef DEBUG_MEM 108void *block_zero_alloc(size_t, const char *); 109void *level_zero_alloc(size_t, size_t, const char *); 110#else 111void *block_zero_alloc(size_t); 112void *level_zero_alloc(size_t, size_t); 113#define block_zero_alloc(size, descr) (block_zero_alloc)(size) 114#define level_zero_alloc(level, size, descr) (level_zero_alloc)(level, size) 115#endif 116void level_free_all(size_t); 117 118#ifdef DEBUG_MEM 119void *expr_zero_alloc(size_t, const char *); 120#else 121void *expr_zero_alloc(size_t); 122#define expr_zero_alloc(size, descr) (expr_zero_alloc)(size) 123#endif 124tnode_t *expr_alloc_tnode(void); 125void expr_free_all(void); 126memory_pool expr_save_memory(void); 127void expr_restore_memory(memory_pool); 128 129/* 130 * debug.c 131 */ 132 133#ifdef DEBUG 134const char *decl_level_kind_name(decl_level_kind); 135const char *scl_name(scl_t); 136const char *symbol_kind_name(symbol_kind); 137const char *type_qualifiers_string(type_qualifiers); 138const char *function_specifier_name(function_specifier); 139void debug_dcs(void); 140void debug_dcs_all(void); 141void debug_node(const tnode_t *); 142void debug_type(const type_t *); 143void debug_sym(const char *, const sym_t *, const char *); 144void debug_symtab(void); 145void debug_printf(const char *fmt, ...) __printflike(1, 2); 146void debug_skip_indent(void); 147void debug_indent_inc(void); 148void debug_indent_dec(void); 149bool debug_push_indented(bool); 150void debug_pop_indented(bool); 151void debug_enter_func(const char *); 152void debug_step(const char *fmt, ...) __printflike(1, 2); 153void debug_leave_func(const char *); 154#define debug_enter() debug_enter_func(__func__) 155#define debug_leave() debug_leave_func(__func__) 156#else 157#define debug_noop() do { } while (false) 158#define debug_dcs() debug_noop() 159#define debug_dcs_all() debug_noop() 160#define debug_sym(p, sym, s) debug_noop() 161#define debug_symtab() debug_noop() 162#define debug_node(tn) debug_noop() 163#define debug_type(tp) debug_noop() 164#define debug_printf(...) debug_noop() 165#define debug_skip_indent() debug_noop() 166#define debug_indent_inc() debug_noop() 167#define debug_indent_dec() debug_noop() 168#define debug_push_indented(c) true 169#define debug_pop_indented(c) (void)(c) 170#define debug_enter() debug_noop() 171#define debug_step(...) debug_noop() 172#define debug_leave() debug_noop() 173#endif 174 175/* 176 * err.c 177 */ 178extern bool seen_error; 179extern bool seen_warning; 180extern int sytxerr; 181extern bool any_query_enabled; 182extern bool is_query_enabled[]; 183 184void msglist(void); 185void error_at(int, const pos_t *, ...); 186void warning_at(int, const pos_t *, ...); 187void message_at(int, const pos_t *, ...); 188void error(int, ...); 189void warning(int, ...); 190bool gnuism(int, ...); 191void c99ism(int, ...); 192void c11ism(int, ...); 193void c23ism(int, ...); 194void assert_failed(const char *, int, const char *, const char *) __dead; 195void update_location(const char *, int, bool, bool); 196void suppress_messages(const char *); 197 198void query_message(int, ...); 199void enable_queries(const char *); 200 201/* 202 * decl.c 203 */ 204extern decl_level *dcs; 205extern const char unnamed[]; 206extern int enumval; 207 208void init_decl(void); 209type_t *gettyp(tspec_t); 210type_t *block_dup_type(const type_t *); 211type_t *expr_dup_type(const type_t *); 212type_t *expr_unqualified_type(const type_t *); 213bool is_incomplete(const type_t *); 214void dcs_add_function_specifier(function_specifier); 215void dcs_add_storage_class(scl_t); 216void dcs_add_type(type_t *); 217void dcs_add_qualifiers(type_qualifiers); 218void dcs_add_packed(void); 219void dcs_set_used(void); 220void begin_declaration_level(decl_level_kind); 221void end_declaration_level(void); 222void dcs_set_asm(void); 223void dcs_begin_type(void); 224void dcs_end_type(void); 225int length_in_bits(const type_t *, const char *); 226unsigned int alignment_in_bits(const type_t *); 227sym_t *concat_symbols(sym_t *, sym_t *); 228void check_type(sym_t *); 229sym_t *declare_unnamed_member(void); 230sym_t *declare_member(sym_t *); 231sym_t *set_bit_field_width(sym_t *, int); 232void add_type_qualifiers(type_qualifiers *, type_qualifiers); 233qual_ptr *append_qualified_pointer(qual_ptr *, qual_ptr *); 234sym_t *add_pointer(sym_t *, qual_ptr *); 235sym_t *add_array(sym_t *, bool, int); 236sym_t *add_function(sym_t *, parameter_list); 237void check_extern_declaration(const sym_t *); 238void check_function_definition(sym_t *, bool); 239sym_t *declarator_name(sym_t *); 240sym_t *old_style_function_parameter_name(sym_t *); 241type_t *make_tag_type(sym_t *, tspec_t, bool, bool); 242type_t *complete_struct_or_union(sym_t *); 243type_t *complete_enum(sym_t *); 244sym_t *enumeration_constant(sym_t *, int, bool); 245void declare(sym_t *, bool, sbuf_t *); 246void copy_usage_info(sym_t *, sym_t *); 247bool check_redeclaration(sym_t *, bool *); 248bool pointer_types_are_compatible(const type_t *, const type_t *, bool); 249bool types_compatible(const type_t *, const type_t *, bool, bool, bool *); 250void complete_type(sym_t *, sym_t *); 251sym_t *declare_parameter(sym_t *, bool); 252void check_func_lint_directives(void); 253void check_func_old_style_parameters(void); 254 255void declare_local(sym_t *, bool); 256sym_t *abstract_name(void); 257sym_t *abstract_enclosing_name(void); 258void global_clean_up(void); 259sym_t *declare_abstract_type(sym_t *); 260void check_size(const sym_t *); 261void mark_as_set(sym_t *); 262void mark_as_used(sym_t *, bool, bool); 263void check_usage(const decl_level *); 264void check_usage_sym(bool, const sym_t *); 265void end_translation_unit(void); 266void print_previous_declaration(const sym_t *); 267int to_int_constant(tnode_t *, bool); 268 269/* 270 * tree.c 271 */ 272const tnode_t *before_conversion(const tnode_t *); 273type_t *block_derive_type(type_t *, tspec_t); 274type_t *expr_derive_type(type_t *, tspec_t); 275bool is_compiler_builtin(const char *); 276tnode_t *build_constant(type_t *, val_t *); 277tnode_t *build_name(sym_t *, bool); 278tnode_t *build_string(buffer *); 279tnode_t *build_generic_selection(const tnode_t *, 280 struct generic_association *); 281 282tnode_t *build_binary(tnode_t *, op_t, bool, tnode_t *); 283tnode_t *build_unary(op_t, bool, tnode_t *); 284tnode_t *build_member_access(tnode_t *, op_t, bool, sbuf_t *); 285tnode_t *cconv(tnode_t *); 286bool is_typeok_bool_compares_with_zero(const tnode_t *); 287bool typeok(op_t, int, const tnode_t *, const tnode_t *); 288tnode_t *promote(op_t, bool, tnode_t *); 289tnode_t *convert(op_t, int, type_t *, tnode_t *); 290void convert_constant(op_t, int, const type_t *, val_t *, val_t *); 291tnode_t *build_sizeof(const type_t *); 292tnode_t *build_offsetof(const type_t *, designation); 293tnode_t *build_alignof(const type_t *); 294tnode_t *cast(tnode_t *, bool, type_t *); 295void add_function_argument(function_call *, tnode_t *); 296tnode_t *build_function_call(tnode_t *, bool, function_call *); 297val_t *integer_constant(tnode_t *, bool); 298void expr(tnode_t *, bool, bool, bool, bool); 299void check_expr_misc(const tnode_t *, bool, bool, bool, bool, bool, bool); 300bool constant_addr(const tnode_t *, const sym_t **, ptrdiff_t *); 301buffer *cat_strings(buffer *, buffer *); 302unsigned int type_size_in_bits(const type_t *); 303sym_t *find_member(const struct_or_union *, const char *); 304uint64_t possible_bits(const tnode_t *); 305 306void begin_statement_expr(void); 307void do_statement_expr(tnode_t *); 308tnode_t *end_statement_expr(void); 309bool in_statement_expr(void); 310 311/* 312 * func.c 313 */ 314extern sym_t *funcsym; 315extern bool reached; 316extern bool warn_about_unreachable; 317extern bool suppress_fallthrough; 318extern int nargusg; 319extern pos_t argsused_pos; 320extern int nvararg; 321extern pos_t vapos; 322extern int printflike_argnum; 323extern pos_t printflike_pos; 324extern int scanflike_argnum; 325extern pos_t scanflike_pos; 326extern bool suppress_constcond; 327extern bool llibflg; 328extern int lwarn; 329extern bool suppress_bitfieldtype; 330extern bool plibflg; 331extern bool suppress_longlong; 332 333void begin_control_statement(control_statement_kind); 334void end_control_statement(control_statement_kind); 335void check_statement_reachable(void); 336void begin_function(sym_t *); 337void end_function(void); 338void named_label(sym_t *); 339void case_label(tnode_t *); 340void default_label(void); 341void stmt_if_expr(tnode_t *); 342void stmt_if_then_stmt(void); 343void stmt_if_else_stmt(bool); 344void stmt_switch_expr(tnode_t *); 345void stmt_switch_expr_stmt(void); 346void stmt_while_expr(tnode_t *); 347void stmt_while_expr_stmt(void); 348void stmt_do(void); 349void stmt_do_while_expr(tnode_t *); 350void stmt_for_exprs(tnode_t *, tnode_t *, tnode_t *); 351void stmt_for_exprs_stmt(void); 352void stmt_goto(sym_t *); 353void stmt_continue(void); 354void stmt_break(void); 355void stmt_return(bool, tnode_t *); 356void global_clean_up_decl(bool); 357void handle_lint_comment(lint_comment, int); 358 359/* 360 * init.c 361 */ 362void begin_initialization(sym_t *); 363void end_initialization(void); 364sym_t *current_initsym(void); 365 366void init_rbrace(void); 367void init_lbrace(void); 368void init_expr(tnode_t *); 369void begin_designation(void); 370void add_designator_member(sbuf_t *); 371void add_designator_subscript(range_t); 372void designation_push(designation *, designator_kind, const sym_t *, size_t); 373 374/* 375 * emit.c 376 */ 377void outtype(const type_t *); 378void outsym(const sym_t *, scl_t, def_t); 379void outfdef(const sym_t *, const pos_t *, bool, bool, const sym_t *); 380void outcall(const tnode_t *, bool, bool); 381void outusg(const sym_t *); 382 383/* 384 * lex.c 385 */ 386int lex_name(const char *, size_t); 387int lex_integer_constant(const char *, size_t, int); 388int lex_floating_constant(const char *, size_t); 389int lex_operator(int, op_t); 390int lex_string(void); 391int lex_wide_string(void); 392int lex_character_constant(void); 393int lex_wide_character_constant(void); 394void lex_directive(const char *); 395void lex_next_line(void); 396void lex_comment(void); 397void lex_slash_slash_comment(void); 398void lex_unknown_character(int); 399int lex_input(void); 400bool quoted_next(const buffer *, quoted_iterator *); 401 402/* 403 * ckbool.c 404 */ 405bool typeok_scalar_strict_bool(op_t, const mod_t *, int, 406 const tnode_t *, const tnode_t *); 407bool fallback_symbol_strict_bool(sym_t *); 408 409/* 410 * ckctype.c 411 */ 412void check_ctype_function_call(const function_call *); 413void check_ctype_macro_invocation(const tnode_t *, const tnode_t *); 414 415/* 416 * ckgetopt.c 417 */ 418void check_getopt_begin_while(const tnode_t *); 419void check_getopt_begin_switch(void); 420void check_getopt_case_label(int64_t); 421void check_getopt_end_switch(void); 422void check_getopt_end_while(void); 423 424/* cksnprintb.c */ 425void check_snprintb(const tnode_t *); 426