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Root/tags/2.3/i386/config/expr.h

Source at commit HEAD created 4 years 9 months ago.
By ifabio, Few update to kernelPatcher (Credits to CrazyBirdy)
1/*␊
2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>␊
3 * Released under the terms of the GNU GPL v2.0.␊
4 */␊
5␊
6#ifndef EXPR_H␊
7#define EXPR_H␊
8␊
9#ifdef __cplusplus␊
10extern "C" {␊
11#endif␊
12␊
13#include <stdio.h>␊
14#ifndef __cplusplus␊
15#include <stdbool.h>␊
16#endif␊
17␊
18struct file {␊
19␉struct file *next;␊
20␉struct file *parent;␊
21␉const char *name;␊
22␉int lineno;␊
23␉int flags;␊
24};␊
25␊
26#define FILE_BUSY␉␉0x0001␊
27#define FILE_SCANNED␉␉0x0002␊
28␊
29typedef enum tristate {␊
30␉no, mod, yes␊
31} tristate;␊
32␊
33enum expr_type {␊
34␉E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_LIST, E_SYMBOL, E_RANGE␊
35};␊
36␊
37union expr_data {␊
38␉struct expr *expr;␊
39␉struct symbol *sym;␊
40};␊
41␊
42struct expr {␊
43␉enum expr_type type;␊
44␉union expr_data left, right;␊
45};␊
46␊
47#define EXPR_OR(dep1, dep2)␉(((dep1)>(dep2))?(dep1):(dep2))␊
48#define EXPR_AND(dep1, dep2)␉(((dep1)<(dep2))?(dep1):(dep2))␊
49#define EXPR_NOT(dep)␉␉(2-(dep))␊
50␊
51#define expr_list_for_each_sym(l, e, s) \␊
52␉for (e = (l); e && (s = e->right.sym); e = e->left.expr)␊
53␊
54struct expr_value {␊
55␉struct expr *expr;␊
56␉tristate tri;␊
57};␊
58␊
59struct symbol_value {␊
60␉void *val;␊
61␉tristate tri;␊
62};␊
63␊
64enum symbol_type {␊
65␉S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER␊
66};␊
67␊
68/* enum values are used as index to symbol.def[] */␊
69enum {␊
70␉S_DEF_USER,␉␉/* main user value */␊
71␉S_DEF_AUTO,␉␉/* values read from auto.conf */␊
72␉S_DEF_DEF3,␉␉/* Reserved for UI usage */␊
73␉S_DEF_DEF4,␉␉/* Reserved for UI usage */␊
74␉S_DEF_COUNT␊
75};␊
76␊
77struct symbol {␊
78␉struct symbol *next;␊
79␉char *name;␊
80␉enum symbol_type type;␊
81␉struct symbol_value curr;␊
82␉struct symbol_value def[S_DEF_COUNT];␊
83␉tristate visible;␊
84␉int flags;␊
85␉struct property *prop;␊
86␉struct expr_value dir_dep;␊
87␉struct expr_value rev_dep;␊
88};␊
89␊
90#define for_all_symbols(i, sym) for (i = 0; i < SYMBOL_HASHSIZE; i++) for (sym = symbol_hash[i]; sym; sym = sym->next) if (sym->type != S_OTHER)␊
91␊
92#define SYMBOL_CONST 0x0001 /* symbol is const */␊
93#define SYMBOL_CHECK 0x0008 /* used during dependency checking */␊
94#define SYMBOL_CHOICE 0x0010 /* start of a choice block (null name) */␊
95#define SYMBOL_CHOICEVAL 0x0020 /* used as a value in a choice block */␊
96#define SYMBOL_VALID 0x0080 /* set when symbol.curr is calculated */␊
97#define SYMBOL_OPTIONAL 0x0100 /* choice is optional - values can be 'n' */␊
98#define SYMBOL_WRITE 0x0200 /* ? */␊
99#define SYMBOL_CHANGED 0x0400 /* ? */␊
100#define SYMBOL_AUTO 0x1000 /* value from environment variable */␊
101#define SYMBOL_CHECKED 0x2000 /* used during dependency checking */␊
102#define SYMBOL_WARNED 0x8000 /* warning has been issued */␊
103␊
104/* Set when symbol.def[] is used */␊
105#define SYMBOL_DEF 0x10000 /* First bit of SYMBOL_DEF */␊
106#define SYMBOL_DEF_USER 0x10000 /* symbol.def[S_DEF_USER] is valid */␊
107#define SYMBOL_DEF_AUTO 0x20000 /* symbol.def[S_DEF_AUTO] is valid */␊
108#define SYMBOL_DEF3 0x40000 /* symbol.def[S_DEF_3] is valid */␊
109#define SYMBOL_DEF4 0x80000 /* symbol.def[S_DEF_4] is valid */␊
110␊
111#define SYMBOL_MAXLENGTH␉256␊
112#define SYMBOL_HASHSIZE␉␉9973␊
113␊
114/* A property represent the config options that can be associated␊
115 * with a config "symbol".␊
116 * Sample:␊
117 * config FOO␊
118 * default y␊
119 * prompt "foo prompt"␊
120 * select BAR␊
121 * config BAZ␊
122 * int "BAZ Value"␊
123 * range 1..255␊
124 */␊
125enum prop_type {␊
126␉P_UNKNOWN,␊
127␉P_PROMPT, /* prompt "foo prompt" or "BAZ Value" */␊
128␉P_COMMENT, /* text associated with a comment */␊
129␉P_MENU, /* prompt associated with a menuconfig option */␊
130␉P_DEFAULT, /* default y */␊
131␉P_CHOICE, /* choice value */␊
132␉P_SELECT, /* select BAR */␊
133␉P_RANGE, /* range 7..100 (for a symbol) */␊
134␉P_ENV, /* value from environment variable */␊
135␉P_SYMBOL, /* where a symbol is defined */␊
136};␊
137␊
138struct property {␊
139␉struct property *next; /* next property - null if last */␊
140␉struct symbol *sym; /* the symbol for which the property is associated */␊
141␉enum prop_type type; /* type of property */␊
142␉const char *text; /* the prompt value - P_PROMPT, P_MENU, P_COMMENT */␊
143␉struct expr_value visible;␊
144␉struct expr *expr; /* the optional conditional part of the property */␊
145␉struct menu *menu; /* the menu the property are associated with␊
146␉ * valid for: P_SELECT, P_RANGE, P_CHOICE,␊
147␉ * P_PROMPT, P_DEFAULT, P_MENU, P_COMMENT */␊
148␉struct file *file; /* what file was this property defined */␊
149␉int lineno; /* what lineno was this property defined */␊
150};␊
151␊
152#define for_all_properties(sym, st, tok) \␊
153␉for (st = sym->prop; st; st = st->next) \␊
154␉␉if (st->type == (tok))␊
155#define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT)␊
156#define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE)␊
157#define for_all_prompts(sym, st) \␊
158␉for (st = sym->prop; st; st = st->next) \␊
159␉␉if (st->text)␊
160␊
161struct menu {␊
162␉struct menu *next;␊
163␉struct menu *parent;␊
164␉struct menu *list;␊
165␉struct symbol *sym;␊
166␉struct property *prompt;␊
167␉struct expr *visibility;␊
168␉struct expr *dep;␊
169␉unsigned int flags;␊
170␉char *help;␊
171␉struct file *file;␊
172␉int lineno;␊
173␉void *data;␊
174};␊
175␊
176#define MENU_CHANGED␉␉0x0001␊
177#define MENU_ROOT␉␉0x0002␊
178␊
179#ifndef SWIG␊
180␊
181extern struct file *file_list;␊
182extern struct file *current_file;␊
183struct file *lookup_file(const char *name);␊
184␊
185extern struct symbol symbol_yes, symbol_no, symbol_mod;␊
186extern struct symbol *modules_sym;␊
187extern struct symbol *sym_defconfig_list;␊
188extern int cdebug;␊
189struct expr *expr_alloc_symbol(struct symbol *sym);␊
190struct expr *expr_alloc_one(enum expr_type type, struct expr *ce);␊
191struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2);␊
192struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2);␊
193struct expr *expr_alloc_and(struct expr *e1, struct expr *e2);␊
194struct expr *expr_alloc_or(struct expr *e1, struct expr *e2);␊
195struct expr *expr_copy(const struct expr *org);␊
196void expr_free(struct expr *e);␊
197int expr_eq(struct expr *e1, struct expr *e2);␊
198void expr_eliminate_eq(struct expr **ep1, struct expr **ep2);␊
199tristate expr_calc_value(struct expr *e);␊
200struct expr *expr_eliminate_yn(struct expr *e);␊
201struct expr *expr_trans_bool(struct expr *e);␊
202struct expr *expr_eliminate_dups(struct expr *e);␊
203struct expr *expr_transform(struct expr *e);␊
204int expr_contains_symbol(struct expr *dep, struct symbol *sym);␊
205bool expr_depends_symbol(struct expr *dep, struct symbol *sym);␊
206struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2);␊
207struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2);␊
208void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2);␊
209struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym);␊
210struct expr *expr_simplify_unmet_dep(struct expr *e1, struct expr *e2);␊
211␊
212void expr_fprint(struct expr *e, FILE *out);␊
213struct gstr; /* forward */␊
214void expr_gstr_print(struct expr *e, struct gstr *gs);␊
215␊
216static inline int expr_is_yes(struct expr *e)␊
217{␊
218␉return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes);␊
219}␊
220␊
221static inline int expr_is_no(struct expr *e)␊
222{␊
223␉return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no);␊
224}␊
225#endif␊
226␊
227#ifdef __cplusplus␊
228}␊
229#endif␊
230␊
231#endif /* EXPR_H */␊
232

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