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[/] [or1k/] [trunk/] [linux/] [uClibc/] [extra/] [config/] [menu.c] - Blame information for rev 1765

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/*
 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
 * Released under the terms of the GNU GPL v2.0.
 */
 
#include <stdlib.h>
#include <string.h>
 
#define LKC_DIRECT_LINK
#include "lkc.h"
 
struct menu rootmenu;
struct menu *current_menu, *current_entry;
static struct menu **last_entry_ptr;
 
struct file *file_list;
struct file *current_file;
 
void menu_init(void)
{
        current_entry = current_menu = &rootmenu;
        last_entry_ptr = &rootmenu.list;
}
 
void menu_add_entry(struct symbol *sym)
{
        struct menu *menu;
 
        menu = malloc(sizeof(*menu));
        memset(menu, 0, sizeof(*menu));
        menu->sym = sym;
        menu->parent = current_menu;
        menu->file = current_file;
        menu->lineno = zconf_lineno();
 
        *last_entry_ptr = menu;
        last_entry_ptr = &menu->next;
        current_entry = menu;
}
 
void menu_end_entry(void)
{
}
 
void menu_add_menu(void)
{
        current_menu = current_entry;
        last_entry_ptr = &current_entry->list;
}
 
void menu_end_menu(void)
{
        last_entry_ptr = &current_menu->next;
        current_menu = current_menu->parent;
}
 
struct expr *menu_check_dep(struct expr *e)
{
        if (!e)
                return e;
 
        switch (e->type) {
        case E_NOT:
                e->left.expr = menu_check_dep(e->left.expr);
                break;
        case E_OR:
        case E_AND:
                e->left.expr = menu_check_dep(e->left.expr);
                e->right.expr = menu_check_dep(e->right.expr);
                break;
        case E_SYMBOL:
                /* change 'm' into 'm' && MODULES */
                if (e->left.sym == &symbol_mod)
                        return expr_alloc_and(e, expr_alloc_symbol(modules_sym));
                break;
        default:
                break;
        }
        return e;
}
 
void menu_add_dep(struct expr *dep)
{
        current_entry->dep = expr_alloc_and(current_entry->dep, menu_check_dep(dep));
}
 
void menu_set_type(int type)
{
        struct symbol *sym = current_entry->sym;
 
        if (sym->type == type)
                return;
        if (sym->type == S_UNKNOWN) {
                sym->type = type;
                return;
        }
        fprintf(stderr, "%s:%d:warning: type of '%s' redefined from '%s' to '%s'\n",
                current_entry->file->name, current_entry->lineno,
                sym->name ? sym->name : "<choice>", sym_type_name(sym->type), sym_type_name(type));
}
 
struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep)
{
        struct property *prop = prop_alloc(type, current_entry->sym);
 
        prop->menu = current_entry;
        prop->text = prompt;
        prop->expr = expr;
        prop->visible.expr = menu_check_dep(dep);
 
        if (prompt) {
                if (current_entry->prompt)
                        fprintf(stderr, "%s:%d: prompt redefined\n",
                                current_entry->file->name, current_entry->lineno);
                current_entry->prompt = prop;
        }
 
        return prop;
}
 
void menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep)
{
        menu_add_prop(type, prompt, NULL, dep);
}
 
void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep)
{
        menu_add_prop(type, NULL, expr, dep);
}
 
void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep)
{
        menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep);
}
 
void menu_finalize(struct menu *parent)
{
        struct menu *menu, *last_menu;
        struct symbol *sym;
        struct property *prop;
        struct expr *parentdep, *basedep, *dep, *dep2, **ep;
 
        sym = parent->sym;
        if (parent->list) {
                if (sym && sym_is_choice(sym)) {
                        /* find the first choice value and find out choice type */
                        for (menu = parent->list; menu; menu = menu->next) {
                                if (menu->sym) {
                                        current_entry = parent;
                                        menu_set_type(menu->sym->type);
                                        current_entry = menu;
                                        menu_set_type(sym->type);
                                        break;
                                }
                        }
                        parentdep = expr_alloc_symbol(sym);
                } else if (parent->prompt)
                        parentdep = parent->prompt->visible.expr;
                else
                        parentdep = parent->dep;
 
                for (menu = parent->list; menu; menu = menu->next) {
                        basedep = expr_transform(menu->dep);
                        basedep = expr_alloc_and(expr_copy(parentdep), basedep);
                        basedep = expr_eliminate_dups(basedep);
                        menu->dep = basedep;
                        if (menu->sym)
                                prop = menu->sym->prop;
                        else
                                prop = menu->prompt;
                        for (; prop; prop = prop->next) {
                                if (prop->menu != menu)
                                        continue;
                                dep = expr_transform(prop->visible.expr);
                                dep = expr_alloc_and(expr_copy(basedep), dep);
                                dep = expr_eliminate_dups(dep);
                                if (menu->sym && menu->sym->type != S_TRISTATE)
                                        dep = expr_trans_bool(dep);
                                prop->visible.expr = dep;
                                if (prop->type == P_SELECT) {
                                        struct symbol *es = prop_get_symbol(prop);
                                        es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,
                                                        expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));
                                }
                        }
                }
                for (menu = parent->list; menu; menu = menu->next)
                        menu_finalize(menu);
        } else if (sym) {
                basedep = parent->prompt ? parent->prompt->visible.expr : NULL;
                basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);
                basedep = expr_eliminate_dups(expr_transform(basedep));
                last_menu = NULL;
                for (menu = parent->next; menu; menu = menu->next) {
                        dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;
                        if (!expr_contains_symbol(dep, sym))
                                break;
                        if (expr_depends_symbol(dep, sym))
                                goto next;
                        dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);
                        dep = expr_eliminate_dups(expr_transform(dep));
                        dep2 = expr_copy(basedep);
                        expr_eliminate_eq(&dep, &dep2);
                        expr_free(dep);
                        if (!expr_is_yes(dep2)) {
                                expr_free(dep2);
                                break;
                        }
                        expr_free(dep2);
                next:
                        menu_finalize(menu);
                        menu->parent = parent;
                        last_menu = menu;
                }
                if (last_menu) {
                        parent->list = parent->next;
                        parent->next = last_menu->next;
                        last_menu->next = NULL;
                }
        }
        for (menu = parent->list; menu; menu = menu->next) {
                if (sym && sym_is_choice(sym) && menu->sym) {
                        menu->sym->flags |= SYMBOL_CHOICEVAL;
                        if (!menu->prompt)
                                fprintf(stderr, "%s:%d:warning: choice value must have a prompt\n",
                                        menu->file->name, menu->lineno);
                        for (prop = menu->sym->prop; prop; prop = prop->next) {
                                if (prop->type == P_PROMPT && prop->menu != menu) {
                                        fprintf(stderr, "%s:%d:warning: choice values currently only support a single prompt\n",
                                                prop->file->name, prop->lineno);
 
                                }
                                if (prop->type == P_DEFAULT)
                                        fprintf(stderr, "%s:%d:warning: defaults for choice values not supported\n",
                                                prop->file->name, prop->lineno);
                        }
                        current_entry = menu;
                        menu_set_type(sym->type);
                        menu_add_symbol(P_CHOICE, sym, NULL);
                        prop = sym_get_choice_prop(sym);
                        for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr)
                                ;
                        *ep = expr_alloc_one(E_CHOICE, NULL);
                        (*ep)->right.sym = menu->sym;
                }
                if (menu->list && (!menu->prompt || !menu->prompt->text)) {
                        for (last_menu = menu->list; ; last_menu = last_menu->next) {
                                last_menu->parent = parent;
                                if (!last_menu->next)
                                        break;
                        }
                        last_menu->next = menu->next;
                        menu->next = menu->list;
                        menu->list = NULL;
                }
        }
 
        if (sym && !(sym->flags & SYMBOL_WARNED)) {
                struct symbol *sym2;
                if (sym->type == S_UNKNOWN)
                        fprintf(stderr, "%s:%d:warning: config symbol defined without type\n",
                                parent->file->name, parent->lineno);
 
                if (sym_is_choice(sym) && !parent->prompt)
                        fprintf(stderr, "%s:%d:warning: choice must have a prompt\n",
                                parent->file->name, parent->lineno);
 
                for (prop = sym->prop; prop; prop = prop->next) {
                        switch (prop->type) {
                        case P_DEFAULT:
                                if ((sym->type == S_STRING || sym->type == S_INT || sym->type == S_HEX) &&
                                    prop->expr->type != E_SYMBOL)
                                        fprintf(stderr, "%s:%d:warning: default must be a single symbol\n",
                                                prop->file->name, prop->lineno);
                                break;
                        case P_SELECT:
                                sym2 = prop_get_symbol(prop);
                                if ((sym->type != S_BOOLEAN) || (sym2->type != S_BOOLEAN))
                                        fprintf(stderr, "%s:%d:warning: enable is only allowed with booleans\n",
                                                prop->file->name, prop->lineno);
                                break;
                        case P_RANGE:
                                if (sym->type != S_INT && sym->type != S_HEX)
                                        fprintf(stderr, "%s:%d:warning: range is only allowed for int or hex symbols\n",
                                                prop->file->name, prop->lineno);
                                if (!sym_string_valid(sym, prop->expr->left.sym->name) ||
                                    !sym_string_valid(sym, prop->expr->right.sym->name))
                                        fprintf(stderr, "%s:%d:warning: range is invalid\n",
                                                prop->file->name, prop->lineno);
                                break;
                        default:
                                ;
                        }
                }
                sym->flags |= SYMBOL_WARNED;
        }
 
        if (sym && !sym_is_optional(sym) && parent->prompt) {
                sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,
                                expr_alloc_and(parent->prompt->visible.expr,
                                        expr_alloc_symbol(&symbol_mod)));
        }
}
 
bool menu_is_visible(struct menu *menu)
{
        struct menu *child;
        struct symbol *sym;
        tristate visible;
 
        if (!menu->prompt)
                return false;
        sym = menu->sym;
        if (sym) {
                sym_calc_value(sym);
                visible = menu->prompt->visible.tri;
        } else
                visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr);
 
        if (visible != no)
                return true;
        if (!sym || sym_get_tristate_value(menu->sym) == no)
                return false;
 
        for (child = menu->list; child; child = child->next)
                if (menu_is_visible(child))
                        return true;
        return false;
}
 
const char *menu_get_prompt(struct menu *menu)
{
        if (menu->prompt)
                return menu->prompt->text;
        else if (menu->sym)
                return menu->sym->name;
        return NULL;
}
 
struct menu *menu_get_root_menu(struct menu *menu)
{
        return &rootmenu;
}
 
struct menu *menu_get_parent_menu(struct menu *menu)
{
        enum prop_type type;
 
        for (; menu != &rootmenu; menu = menu->parent) {
                type = menu->prompt ? menu->prompt->type : 0;
                if (type == P_MENU)
                        break;
        }
        return menu;
}
 
struct file *file_lookup(const char *name)
{
        struct file *file;
 
        for (file = file_list; file; file = file->next) {
                if (!strcmp(name, file->name))
                        return file;
        }
 
        file = malloc(sizeof(*file));
        memset(file, 0, sizeof(*file));
        file->name = strdup(name);
        file->next = file_list;
        file_list = file;
        return file;
}
 
int file_write_dep(const char *name)
{
        struct file *file;
        FILE *out;
 
        if (!name)
                name = ".config.cmd";
        out = fopen(".config.tmp", "w");
        if (!out)
                return 1;
        fprintf(out, "deps_config := \\\n");
        for (file = file_list; file; file = file->next) {
                if (file->next)
                        fprintf(out, "\t%s \\\n", file->name);
                else
                        fprintf(out, "\t%s\n", file->name);
        }
        fprintf(out, "\n.config include/bits/uClibc_config.h: $(deps_config)\n\n$(deps_config):\n");
        fclose(out);
        rename(".config.tmp", name);
        return 0;
}
 

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[/] [or1k/] [trunk/] [linux/] [uClibc/] [extra/] [config/] [menu.c] - Blame information for rev 1765

Line No.	Rev	Author	Line
1	1325	phoenix	`/*`
2			`* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>`
3			`* Released under the terms of the GNU GPL v2.0.`
4			`*/`
5
6			`#include <stdlib.h>`
7			`#include <string.h>`
8
9			`#define LKC_DIRECT_LINK`
10			`#include "lkc.h"`
11
12			`struct menu rootmenu;`
13			`struct menu current_menu, current_entry;`
14			`static struct menu **last_entry_ptr;`
15
16			`struct file *file_list;`
17			`struct file *current_file;`
18
19			`void menu_init(void)`
20			`{`
21			`current_entry = current_menu = &rootmenu;`
22			`last_entry_ptr = &rootmenu.list;`
23			`}`
24
25			`void menu_add_entry(struct symbol *sym)`
26			`{`
27			`struct menu *menu;`
28
29			`menu = malloc(sizeof(*menu));`
30			`memset(menu, 0, sizeof(*menu));`
31			`menu->sym = sym;`
32			`menu->parent = current_menu;`
33			`menu->file = current_file;`
34			`menu->lineno = zconf_lineno();`
35
36			`*last_entry_ptr = menu;`
37			`last_entry_ptr = &menu->next;`
38			`current_entry = menu;`
39			`}`
40
41			`void menu_end_entry(void)`
42			`{`
43			`}`
44
45			`void menu_add_menu(void)`
46			`{`
47			`current_menu = current_entry;`
48			`last_entry_ptr = &current_entry->list;`
49			`}`
50
51			`void menu_end_menu(void)`
52			`{`
53			`last_entry_ptr = &current_menu->next;`
54			`current_menu = current_menu->parent;`
55			`}`
56
57			`struct expr menu_check_dep(struct expr e)`
58			`{`
59			`if (!e)`
60			`return e;`
61
62			`switch (e->type) {`
63			`case E_NOT:`
64			`e->left.expr = menu_check_dep(e->left.expr);`
65			`break;`
66			`case E_OR:`
67			`case E_AND:`
68			`e->left.expr = menu_check_dep(e->left.expr);`
69			`e->right.expr = menu_check_dep(e->right.expr);`
70			`break;`
71			`case E_SYMBOL:`
72			`/* change 'm' into 'm' && MODULES */`
73			`if (e->left.sym == &symbol_mod)`
74			`return expr_alloc_and(e, expr_alloc_symbol(modules_sym));`
75			`break;`
76			`default:`
77			`break;`
78			`}`
79			`return e;`
80			`}`
81
82			`void menu_add_dep(struct expr *dep)`
83			`{`
84			`current_entry->dep = expr_alloc_and(current_entry->dep, menu_check_dep(dep));`
85			`}`
86
87			`void menu_set_type(int type)`
88			`{`
89			`struct symbol *sym = current_entry->sym;`
90
91			`if (sym->type == type)`
92			`return;`
93			`if (sym->type == S_UNKNOWN) {`
94			`sym->type = type;`
95			`return;`
96			`}`
97			`fprintf(stderr, "%s:%d:warning: type of '%s' redefined from '%s' to '%s'\n",`
98			`current_entry->file->name, current_entry->lineno,`
99			`sym->name ? sym->name : "<choice>", sym_type_name(sym->type), sym_type_name(type));`
100			`}`
101
102			`struct property menu_add_prop(enum prop_type type, char prompt, struct expr expr, struct expr dep)`
103			`{`
104			`struct property *prop = prop_alloc(type, current_entry->sym);`
105
106			`prop->menu = current_entry;`
107			`prop->text = prompt;`
108			`prop->expr = expr;`
109			`prop->visible.expr = menu_check_dep(dep);`
110
111			`if (prompt) {`
112			`if (current_entry->prompt)`
113			`fprintf(stderr, "%s:%d: prompt redefined\n",`
114			`current_entry->file->name, current_entry->lineno);`
115			`current_entry->prompt = prop;`
116			`}`
117
118			`return prop;`
119			`}`
120
121			`void menu_add_prompt(enum prop_type type, char prompt, struct expr dep)`
122			`{`
123			`menu_add_prop(type, prompt, NULL, dep);`
124			`}`
125
126			`void menu_add_expr(enum prop_type type, struct expr expr, struct expr dep)`
127			`{`
128			`menu_add_prop(type, NULL, expr, dep);`
129			`}`
130
131			`void menu_add_symbol(enum prop_type type, struct symbol sym, struct expr dep)`
132			`{`
133			`menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep);`
134			`}`
135
136			`void menu_finalize(struct menu *parent)`
137			`{`
138			`struct menu menu, last_menu;`
139			`struct symbol *sym;`
140			`struct property *prop;`
141			`struct expr parentdep, basedep, dep, dep2, **ep;`
142
143			`sym = parent->sym;`
144			`if (parent->list) {`
145			`if (sym && sym_is_choice(sym)) {`
146			`/* find the first choice value and find out choice type */`
147			`for (menu = parent->list; menu; menu = menu->next) {`
148			`if (menu->sym) {`
149			`current_entry = parent;`
150			`menu_set_type(menu->sym->type);`
151			`current_entry = menu;`
152			`menu_set_type(sym->type);`
153			`break;`
154			`}`
155			`}`
156			`parentdep = expr_alloc_symbol(sym);`
157			`} else if (parent->prompt)`
158			`parentdep = parent->prompt->visible.expr;`
159			`else`
160			`parentdep = parent->dep;`
161
162			`for (menu = parent->list; menu; menu = menu->next) {`
163			`basedep = expr_transform(menu->dep);`
164			`basedep = expr_alloc_and(expr_copy(parentdep), basedep);`
165			`basedep = expr_eliminate_dups(basedep);`
166			`menu->dep = basedep;`
167			`if (menu->sym)`
168			`prop = menu->sym->prop;`
169			`else`
170			`prop = menu->prompt;`
171			`for (; prop; prop = prop->next) {`
172			`if (prop->menu != menu)`
173			`continue;`
174			`dep = expr_transform(prop->visible.expr);`
175			`dep = expr_alloc_and(expr_copy(basedep), dep);`
176			`dep = expr_eliminate_dups(dep);`
177			`if (menu->sym && menu->sym->type != S_TRISTATE)`
178			`dep = expr_trans_bool(dep);`
179			`prop->visible.expr = dep;`
180			`if (prop->type == P_SELECT) {`
181			`struct symbol *es = prop_get_symbol(prop);`
182			`es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr,`
183			`expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep)));`
184			`}`
185			`}`
186			`}`
187			`for (menu = parent->list; menu; menu = menu->next)`
188			`menu_finalize(menu);`
189			`} else if (sym) {`
190			`basedep = parent->prompt ? parent->prompt->visible.expr : NULL;`
191			`basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no);`
192			`basedep = expr_eliminate_dups(expr_transform(basedep));`
193			`last_menu = NULL;`
194			`for (menu = parent->next; menu; menu = menu->next) {`
195			`dep = menu->prompt ? menu->prompt->visible.expr : menu->dep;`
196			`if (!expr_contains_symbol(dep, sym))`
197			`break;`
198			`if (expr_depends_symbol(dep, sym))`
199			`goto next;`
200			`dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no);`
201			`dep = expr_eliminate_dups(expr_transform(dep));`
202			`dep2 = expr_copy(basedep);`
203			`expr_eliminate_eq(&dep, &dep2);`
204			`expr_free(dep);`
205			`if (!expr_is_yes(dep2)) {`
206			`expr_free(dep2);`
207			`break;`
208			`}`
209			`expr_free(dep2);`
210			`next:`
211			`menu_finalize(menu);`
212			`menu->parent = parent;`
213			`last_menu = menu;`
214			`}`
215			`if (last_menu) {`
216			`parent->list = parent->next;`
217			`parent->next = last_menu->next;`
218			`last_menu->next = NULL;`
219			`}`
220			`}`
221			`for (menu = parent->list; menu; menu = menu->next) {`
222			`if (sym && sym_is_choice(sym) && menu->sym) {`
223			`menu->sym->flags \|= SYMBOL_CHOICEVAL;`
224			`if (!menu->prompt)`
225			`fprintf(stderr, "%s:%d:warning: choice value must have a prompt\n",`
226			`menu->file->name, menu->lineno);`
227			`for (prop = menu->sym->prop; prop; prop = prop->next) {`
228			`if (prop->type == P_PROMPT && prop->menu != menu) {`
229			`fprintf(stderr, "%s:%d:warning: choice values currently only support a single prompt\n",`
230			`prop->file->name, prop->lineno);`
231
232			`}`
233			`if (prop->type == P_DEFAULT)`
234			`fprintf(stderr, "%s:%d:warning: defaults for choice values not supported\n",`
235			`prop->file->name, prop->lineno);`
236			`}`
237			`current_entry = menu;`
238			`menu_set_type(sym->type);`
239			`menu_add_symbol(P_CHOICE, sym, NULL);`
240			`prop = sym_get_choice_prop(sym);`
241			`for (ep = &prop->expr; ep; ep = &(ep)->left.expr)`
242			`;`
243			`*ep = expr_alloc_one(E_CHOICE, NULL);`
244			`(*ep)->right.sym = menu->sym;`
245			`}`
246			`if (menu->list && (!menu->prompt \|\| !menu->prompt->text)) {`
247			`for (last_menu = menu->list; ; last_menu = last_menu->next) {`
248			`last_menu->parent = parent;`
249			`if (!last_menu->next)`
250			`break;`
251			`}`
252			`last_menu->next = menu->next;`
253			`menu->next = menu->list;`
254			`menu->list = NULL;`
255			`}`
256			`}`
257
258			`if (sym && !(sym->flags & SYMBOL_WARNED)) {`
259			`struct symbol *sym2;`
260			`if (sym->type == S_UNKNOWN)`
261			`fprintf(stderr, "%s:%d:warning: config symbol defined without type\n",`
262			`parent->file->name, parent->lineno);`
263
264			`if (sym_is_choice(sym) && !parent->prompt)`
265			`fprintf(stderr, "%s:%d:warning: choice must have a prompt\n",`
266			`parent->file->name, parent->lineno);`
267
268			`for (prop = sym->prop; prop; prop = prop->next) {`
269			`switch (prop->type) {`
270			`case P_DEFAULT:`
271			`if ((sym->type == S_STRING \|\| sym->type == S_INT \|\| sym->type == S_HEX) &&`
272			`prop->expr->type != E_SYMBOL)`
273			`fprintf(stderr, "%s:%d:warning: default must be a single symbol\n",`
274			`prop->file->name, prop->lineno);`
275			`break;`
276			`case P_SELECT:`
277			`sym2 = prop_get_symbol(prop);`
278			`if ((sym->type != S_BOOLEAN) \|\| (sym2->type != S_BOOLEAN))`
279			`fprintf(stderr, "%s:%d:warning: enable is only allowed with booleans\n",`
280			`prop->file->name, prop->lineno);`
281			`break;`
282			`case P_RANGE:`
283			`if (sym->type != S_INT && sym->type != S_HEX)`
284			`fprintf(stderr, "%s:%d:warning: range is only allowed for int or hex symbols\n",`
285			`prop->file->name, prop->lineno);`
286			`if (!sym_string_valid(sym, prop->expr->left.sym->name) \|\|`
287			`!sym_string_valid(sym, prop->expr->right.sym->name))`
288			`fprintf(stderr, "%s:%d:warning: range is invalid\n",`
289			`prop->file->name, prop->lineno);`
290			`break;`
291			`default:`
292			`;`
293			`}`
294			`}`
295			`sym->flags \|= SYMBOL_WARNED;`
296			`}`
297
298			`if (sym && !sym_is_optional(sym) && parent->prompt) {`
299			`sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr,`
300			`expr_alloc_and(parent->prompt->visible.expr,`
301			`expr_alloc_symbol(&symbol_mod)));`
302			`}`
303			`}`
304
305			`bool menu_is_visible(struct menu *menu)`
306			`{`
307			`struct menu *child;`
308			`struct symbol *sym;`
309			`tristate visible;`
310
311			`if (!menu->prompt)`
312			`return false;`
313			`sym = menu->sym;`
314			`if (sym) {`
315			`sym_calc_value(sym);`
316			`visible = menu->prompt->visible.tri;`
317			`} else`
318			`visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr);`
319
320			`if (visible != no)`
321			`return true;`
322			`if (!sym \|\| sym_get_tristate_value(menu->sym) == no)`
323			`return false;`
324
325			`for (child = menu->list; child; child = child->next)`
326			`if (menu_is_visible(child))`
327			`return true;`
328			`return false;`
329			`}`
330
331			`const char menu_get_prompt(struct menu menu)`
332			`{`
333			`if (menu->prompt)`
334			`return menu->prompt->text;`
335			`else if (menu->sym)`
336			`return menu->sym->name;`
337			`return NULL;`
338			`}`
339
340			`struct menu menu_get_root_menu(struct menu menu)`
341			`{`
342			`return &rootmenu;`
343			`}`
344
345			`struct menu menu_get_parent_menu(struct menu menu)`
346			`{`
347			`enum prop_type type;`
348
349			`for (; menu != &rootmenu; menu = menu->parent) {`
350			`type = menu->prompt ? menu->prompt->type : 0;`
351			`if (type == P_MENU)`
352			`break;`
353			`}`
354			`return menu;`
355			`}`
356
357			`struct file file_lookup(const char name)`
358			`{`
359			`struct file *file;`
360
361			`for (file = file_list; file; file = file->next) {`
362			`if (!strcmp(name, file->name))`
363			`return file;`
364			`}`
365
366			`file = malloc(sizeof(*file));`
367			`memset(file, 0, sizeof(*file));`
368			`file->name = strdup(name);`
369			`file->next = file_list;`
370			`file_list = file;`
371			`return file;`
372			`}`
373
374			`int file_write_dep(const char *name)`
375			`{`
376			`struct file *file;`
377			`FILE *out;`
378
379			`if (!name)`
380			`name = ".config.cmd";`
381			`out = fopen(".config.tmp", "w");`
382			`if (!out)`
383			`return 1;`
384			`fprintf(out, "deps_config := \\\n");`
385			`for (file = file_list; file; file = file->next) {`
386			`if (file->next)`
387			`fprintf(out, "\t%s \\\n", file->name);`
388			`else`
389			`fprintf(out, "\t%s\n", file->name);`
390			`}`
391			`fprintf(out, "\n.config include/bits/uClibc_config.h: $(deps_config)\n\n$(deps_config):\n");`
392			`fclose(out);`
393			`rename(".config.tmp", name);`
394			`return 0;`
395			`}`
396