1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org> 4 */ 5 6 #ifndef LKC_H 7 #define LKC_H 8 9 #include <assert.h> 10 #include <stdio.h> 11 #include <stdlib.h> 12 13 #include "expr.h" 14 15 #ifdef __cplusplus 16 extern "C" { 17 #endif 18 19 #include "lkc_proto.h" 20 21 #define SRCTREE "srctree" 22 23 #ifndef CONFIG_ 24 #define CONFIG_ "CONFIG_" 25 #endif 26 static inline const char *CONFIG_prefix(void) 27 { 28 return getenv( "CONFIG_" ) ?: CONFIG_; 29 } 30 #undef CONFIG_ 31 #define CONFIG_ CONFIG_prefix() 32 33 extern int yylineno; 34 void zconfdump(FILE *out); 35 void zconf_starthelp(void); 36 FILE *zconf_fopen(const char *name); 37 void zconf_initscan(const char *name); 38 void zconf_nextfile(const char *name); 39 40 /* confdata.c */ 41 extern struct gstr autoconf_cmd; 42 const char *conf_get_configname(void); 43 44 /* confdata.c and expr.c */ 45 static inline void xfwrite(const void *str, size_t len, size_t count, FILE *out) 46 { 47 assert(len != 0); 48 49 if (fwrite(str, len, count, out) != count) 50 fprintf(stderr, "Error in writing or end of file.\n"); 51 } 52 53 /* util.c */ 54 unsigned int strhash(const char *s); 55 const char *file_lookup(const char *name); 56 void *xmalloc(size_t size); 57 void *xcalloc(size_t nmemb, size_t size); 58 void *xrealloc(void *p, size_t size); 59 char *xstrdup(const char *s); 60 char *xstrndup(const char *s, size_t n); 61 62 /* lexer.l */ 63 int yylex(void); 64 65 struct gstr { 66 size_t len; 67 char *s; 68 /* 69 * when max_width is not zero long lines in string s (if any) get 70 * wrapped not to exceed the max_width value 71 */ 72 int max_width; 73 }; 74 struct gstr str_new(void); 75 void str_free(struct gstr *gs); 76 void str_append(struct gstr *gs, const char *s); 77 void str_printf(struct gstr *gs, const char *fmt, ...); 78 char *str_get(const struct gstr *gs); 79 80 /* menu.c */ 81 struct menu *menu_next(struct menu *menu, struct menu *root); 82 #define menu_for_each_sub_entry(menu, root) \ 83 for (menu = menu_next(root, root); menu; menu = menu_next(menu, root)) 84 #define menu_for_each_entry(menu) \ 85 menu_for_each_sub_entry(menu, &rootmenu) 86 void _menu_init(void); 87 void menu_warn(const struct menu *menu, const char *fmt, ...); 88 struct menu *menu_add_menu(void); 89 void menu_end_menu(void); 90 void menu_add_entry(struct symbol *sym); 91 void menu_add_dep(struct expr *dep); 92 void menu_add_visibility(struct expr *dep); 93 struct property *menu_add_prompt(enum prop_type type, const char *prompt, 94 struct expr *dep); 95 void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep); 96 void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep); 97 void menu_finalize(void); 98 void menu_set_type(int type); 99 100 extern struct menu rootmenu; 101 102 bool menu_is_empty(struct menu *menu); 103 bool menu_is_visible(struct menu *menu); 104 bool menu_has_prompt(const struct menu *menu); 105 const char *menu_get_prompt(const struct menu *menu); 106 struct menu *menu_get_parent_menu(struct menu *menu); 107 int get_jump_key_char(void); 108 struct gstr get_relations_str(struct symbol **sym_arr, struct list_head *head); 109 void menu_get_ext_help(struct menu *menu, struct gstr *help); 110 111 /* symbol.c */ 112 void sym_clear_all_valid(void); 113 struct symbol *sym_choice_default(struct menu *choice); 114 struct symbol *sym_calc_choice(struct menu *choice); 115 struct property *sym_get_range_prop(struct symbol *sym); 116 const char *sym_get_string_default(struct symbol *sym); 117 struct symbol *sym_check_deps(struct symbol *sym); 118 struct symbol *prop_get_symbol(const struct property *prop); 119 120 static inline tristate sym_get_tristate_value(const struct symbol *sym) 121 { 122 return sym->curr.tri; 123 } 124 125 static inline bool sym_is_choice(const struct symbol *sym) 126 { 127 /* A choice is a symbol with no name */ 128 return sym->name == NULL; 129 } 130 131 bool sym_is_choice_value(const struct symbol *sym); 132 133 static inline bool sym_has_value(const struct symbol *sym) 134 { 135 return sym->flags & SYMBOL_DEF_USER ? true : false; 136 } 137 138 #ifdef __cplusplus 139 } 140 #endif 141 142 #endif /* LKC_H */ 143