OpenWrt – Blame information for rev 1
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Rev | Author | Line No. | Line |
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1 | office | 1 | /* |
2 | * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org> |
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3 | * Released under the terms of the GNU GPL v2.0. |
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4 | */ |
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5 | |||
6 | #ifndef EXPR_H |
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7 | #define EXPR_H |
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8 | |||
9 | #ifdef __cplusplus |
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10 | extern "C" { |
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11 | #endif |
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12 | |||
13 | #include <assert.h> |
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14 | #include <stdio.h> |
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15 | #include "list.h" |
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16 | #ifndef __cplusplus |
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17 | #include <stdbool.h> |
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18 | #endif |
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19 | |||
20 | struct file { |
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21 | struct file *next; |
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22 | struct file *parent; |
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23 | const char *name; |
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24 | int lineno; |
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25 | }; |
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26 | |||
27 | typedef enum tristate { |
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28 | no, mod, yes |
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29 | } tristate; |
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30 | |||
31 | enum expr_type { |
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32 | E_NONE, E_OR, E_AND, E_NOT, |
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33 | E_EQUAL, E_UNEQUAL, E_LTH, E_LEQ, E_GTH, E_GEQ, |
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34 | E_LIST, E_SYMBOL, E_RANGE |
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35 | }; |
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36 | |||
37 | union expr_data { |
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38 | struct expr *expr; |
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39 | struct symbol *sym; |
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40 | }; |
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41 | |||
42 | struct expr { |
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43 | enum expr_type type; |
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44 | union expr_data left, right; |
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45 | }; |
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46 | |||
47 | #define EXPR_OR(dep1, dep2) (((dep1)>(dep2))?(dep1):(dep2)) |
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48 | #define EXPR_AND(dep1, dep2) (((dep1)<(dep2))?(dep1):(dep2)) |
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49 | #define EXPR_NOT(dep) (2-(dep)) |
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50 | |||
51 | #define expr_list_for_each_sym(l, e, s) \ |
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52 | for (e = (l); e && (s = e->right.sym); e = e->left.expr) |
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53 | |||
54 | struct expr_value { |
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55 | struct expr *expr; |
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56 | tristate tri; |
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57 | }; |
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58 | |||
59 | struct symbol_value { |
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60 | void *val; |
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61 | tristate tri; |
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62 | }; |
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63 | |||
64 | enum symbol_type { |
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65 | S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER |
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66 | }; |
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67 | |||
68 | /* enum values are used as index to symbol.def[] */ |
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69 | enum { |
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70 | S_DEF_USER, /* main user value */ |
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71 | S_DEF_AUTO, /* values read from auto.conf */ |
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72 | S_DEF_DEF3, /* Reserved for UI usage */ |
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73 | S_DEF_DEF4, /* Reserved for UI usage */ |
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74 | S_DEF_COUNT |
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75 | }; |
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76 | |||
77 | struct symbol { |
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78 | struct symbol *next; |
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79 | char *name; |
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80 | enum symbol_type type; |
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81 | struct symbol_value curr; |
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82 | struct symbol_value def[S_DEF_COUNT]; |
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83 | tristate visible; |
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84 | int flags; |
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85 | struct property *prop; |
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86 | struct expr_value dir_dep; |
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87 | struct expr_value rev_dep; |
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88 | }; |
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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) |
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91 | |||
92 | #define SYMBOL_CONST 0x0001 /* symbol is const */ |
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93 | #define SYMBOL_CHECK 0x0008 /* used during dependency checking */ |
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94 | #define SYMBOL_CHOICE 0x0010 /* start of a choice block (null name) */ |
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95 | #define SYMBOL_CHOICEVAL 0x0020 /* used as a value in a choice block */ |
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96 | #define SYMBOL_VALID 0x0080 /* set when symbol.curr is calculated */ |
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97 | #define SYMBOL_OPTIONAL 0x0100 /* choice is optional - values can be 'n' */ |
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98 | #define SYMBOL_WRITE 0x0200 /* write symbol to file (KCONFIG_CONFIG) */ |
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99 | #define SYMBOL_CHANGED 0x0400 /* ? */ |
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100 | #define SYMBOL_AUTO 0x1000 /* value from environment variable */ |
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101 | #define SYMBOL_CHECKED 0x2000 /* used during dependency checking */ |
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102 | #define SYMBOL_WARNED 0x8000 /* warning has been issued */ |
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103 | |||
104 | /* Set when symbol.def[] is used */ |
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105 | #define SYMBOL_DEF 0x10000 /* First bit of SYMBOL_DEF */ |
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106 | #define SYMBOL_DEF_USER 0x10000 /* symbol.def[S_DEF_USER] is valid */ |
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107 | #define SYMBOL_DEF_AUTO 0x20000 /* symbol.def[S_DEF_AUTO] is valid */ |
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108 | #define SYMBOL_DEF3 0x40000 /* symbol.def[S_DEF_3] is valid */ |
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109 | #define SYMBOL_DEF4 0x80000 /* symbol.def[S_DEF_4] is valid */ |
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110 | |||
111 | /* choice values need to be set before calculating this symbol value */ |
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112 | #define SYMBOL_NEED_SET_CHOICE_VALUES 0x100000 |
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113 | |||
114 | /* Set symbol to y if allnoconfig; used for symbols that hide others */ |
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115 | #define SYMBOL_ALLNOCONFIG_Y 0x200000 |
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116 | |||
117 | #define SYMBOL_MAXLENGTH 256 |
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118 | #define SYMBOL_HASHSIZE 9973 |
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119 | |||
120 | /* A property represent the config options that can be associated |
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121 | * with a config "symbol". |
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122 | * Sample: |
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123 | * config FOO |
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124 | * default y |
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125 | * prompt "foo prompt" |
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126 | * select BAR |
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127 | * config BAZ |
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128 | * int "BAZ Value" |
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129 | * range 1..255 |
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130 | */ |
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131 | enum prop_type { |
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132 | P_UNKNOWN, |
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133 | P_PROMPT, /* prompt "foo prompt" or "BAZ Value" */ |
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134 | P_COMMENT, /* text associated with a comment */ |
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135 | P_MENU, /* prompt associated with a menuconfig option */ |
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136 | P_DEFAULT, /* default y */ |
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137 | P_CHOICE, /* choice value */ |
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138 | P_SELECT, /* select BAR */ |
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139 | P_RANGE, /* range 7..100 (for a symbol) */ |
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140 | P_ENV, /* value from environment variable */ |
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141 | P_SYMBOL, /* where a symbol is defined */ |
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142 | P_RESET, /* reset to defaults condition */ |
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143 | }; |
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144 | |||
145 | struct property { |
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146 | struct property *next; /* next property - null if last */ |
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147 | struct symbol *sym; /* the symbol for which the property is associated */ |
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148 | enum prop_type type; /* type of property */ |
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149 | const char *text; /* the prompt value - P_PROMPT, P_MENU, P_COMMENT */ |
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150 | struct expr_value visible; |
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151 | struct expr *expr; /* the optional conditional part of the property */ |
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152 | struct menu *menu; /* the menu the property are associated with |
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153 | * valid for: P_SELECT, P_RANGE, P_CHOICE, |
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154 | * P_PROMPT, P_DEFAULT, P_MENU, P_COMMENT */ |
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155 | struct file *file; /* what file was this property defined */ |
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156 | int lineno; /* what lineno was this property defined */ |
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157 | }; |
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158 | |||
159 | #define for_all_properties(sym, st, tok) \ |
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160 | for (st = sym->prop; st; st = st->next) \ |
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161 | if (st->type == (tok)) |
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162 | #define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT) |
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163 | #define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE) |
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164 | #define for_all_prompts(sym, st) \ |
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165 | for (st = sym->prop; st; st = st->next) \ |
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166 | if (st->text) |
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167 | |||
168 | struct menu { |
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169 | struct menu *next; |
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170 | struct menu *parent; |
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171 | struct menu *list; |
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172 | struct symbol *sym; |
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173 | struct property *prompt; |
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174 | struct expr *visibility; |
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175 | struct expr *dep; |
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176 | unsigned int flags; |
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177 | char *help; |
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178 | struct file *file; |
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179 | int lineno; |
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180 | void *data; |
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181 | }; |
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182 | |||
183 | #define MENU_CHANGED 0x0001 |
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184 | #define MENU_ROOT 0x0002 |
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185 | |||
186 | struct jump_key { |
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187 | struct list_head entries; |
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188 | size_t offset; |
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189 | struct menu *target; |
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190 | int index; |
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191 | }; |
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192 | |||
193 | #define JUMP_NB 9 |
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194 | |||
195 | extern struct file *file_list; |
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196 | extern struct file *current_file; |
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197 | struct file *lookup_file(const char *name); |
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198 | |||
199 | extern struct symbol symbol_yes, symbol_no, symbol_mod; |
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200 | extern struct symbol *modules_sym; |
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201 | extern struct symbol *sym_defconfig_list; |
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202 | extern int cdebug; |
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203 | struct expr *expr_alloc_symbol(struct symbol *sym); |
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204 | struct expr *expr_alloc_one(enum expr_type type, struct expr *ce); |
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205 | struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2); |
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206 | struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2); |
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207 | struct expr *expr_alloc_and(struct expr *e1, struct expr *e2); |
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208 | struct expr *expr_alloc_or(struct expr *e1, struct expr *e2); |
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209 | struct expr *expr_copy(const struct expr *org); |
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210 | void expr_free(struct expr *e); |
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211 | void expr_eliminate_eq(struct expr **ep1, struct expr **ep2); |
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212 | tristate expr_calc_value(struct expr *e); |
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213 | struct expr *expr_trans_bool(struct expr *e); |
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214 | struct expr *expr_eliminate_dups(struct expr *e); |
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215 | struct expr *expr_transform(struct expr *e); |
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216 | int expr_contains_symbol(struct expr *dep, struct symbol *sym); |
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217 | bool expr_depends_symbol(struct expr *dep, struct symbol *sym); |
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218 | struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym); |
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219 | struct expr *expr_simplify_unmet_dep(struct expr *e1, struct expr *e2); |
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220 | |||
221 | void expr_fprint(struct expr *e, FILE *out); |
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222 | struct gstr; /* forward */ |
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223 | void expr_gstr_print(struct expr *e, struct gstr *gs); |
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224 | |||
225 | static inline int expr_is_yes(struct expr *e) |
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226 | { |
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227 | return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes); |
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228 | } |
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229 | |||
230 | static inline int expr_is_no(struct expr *e) |
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231 | { |
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232 | return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no); |
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233 | } |
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234 | |||
235 | #ifdef __cplusplus |
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236 | } |
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237 | #endif |
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238 | |||
239 | #endif /* EXPR_H */ |