2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
3 * Released under the terms of the GNU GPL v2.0.
5 * Introduced single menu mode (show all sub-menus in one large tree).
6 * 2002-11-06 Petr Baudis <pasky@ucw.cz>
8 * i18n, 2005, Arnaldo Carvalho de Melo <acme@conectiva.com.br>
11 #include <sys/ioctl.h>
25 #define LKC_DIRECT_LINK
27 #include "lxdialog/dialog.h"
29 static char menu_backtitle[128];
30 static const char mconf_readme[] = N_(
33 "Some kernel features may be built directly into the kernel.\n"
34 "Some may be made into loadable runtime modules. Some features\n"
35 "may be completely removed altogether. There are also certain\n"
36 "kernel parameters which are not really features, but must be\n"
37 "entered in as decimal or hexadecimal numbers or possibly text.\n"
39 "Menu items beginning with [*], <M> or [ ] represent features\n"
40 "configured to be built in, modularized or removed respectively.\n"
41 "Pointed brackets <> represent module capable features.\n"
43 "To change any of these features, highlight it with the cursor\n"
44 "keys and press <Y> to build it in, <M> to make it a module or\n"
45 "<N> to removed it. You may also press the <Space Bar> to cycle\n"
46 "through the available options (ie. Y->N->M->Y).\n"
48 "Some additional keyboard hints:\n"
52 "o Use the Up/Down arrow keys (cursor keys) to highlight the item\n"
53 " you wish to change or submenu wish to select and press <Enter>.\n"
54 " Submenus are designated by \"--->\".\n"
56 " Shortcut: Press the option's highlighted letter (hotkey).\n"
57 " Pressing a hotkey more than once will sequence\n"
58 " through all visible items which use that hotkey.\n"
60 " You may also use the <PAGE UP> and <PAGE DOWN> keys to scroll\n"
61 " unseen options into view.\n"
63 "o To exit a menu use the cursor keys to highlight the <Exit> button\n"
64 " and press <ENTER>.\n"
66 " Shortcut: Press <ESC><ESC> or <E> or <X> if there is no hotkey\n"
67 " using those letters. You may press a single <ESC>, but\n"
68 " there is a delayed response which you may find annoying.\n"
70 " Also, the <TAB> and cursor keys will cycle between <Select>,\n"
71 " <Exit> and <Help>\n"
73 "o To get help with an item, use the cursor keys to highlight <Help>\n"
74 " and Press <ENTER>.\n"
76 " Shortcut: Press <H> or <?>.\n"
79 "Radiolists (Choice lists)\n"
81 "o Use the cursor keys to select the option you wish to set and press\n"
82 " <S> or the <SPACE BAR>.\n"
84 " Shortcut: Press the first letter of the option you wish to set then\n"
85 " press <S> or <SPACE BAR>.\n"
87 "o To see available help for the item, use the cursor keys to highlight\n"
88 " <Help> and Press <ENTER>.\n"
90 " Shortcut: Press <H> or <?>.\n"
92 " Also, the <TAB> and cursor keys will cycle between <Select> and\n"
98 "o Enter the requested information and press <ENTER>\n"
99 " If you are entering hexadecimal values, it is not necessary to\n"
100 " add the '0x' prefix to the entry.\n"
102 "o For help, use the <TAB> or cursor keys to highlight the help option\n"
103 " and press <ENTER>. You can try <TAB><H> as well.\n"
106 "Text Box (Help Window)\n"
108 "o Use the cursor keys to scroll up/down/left/right. The VI editor\n"
109 " keys h,j,k,l function here as do <SPACE BAR> and <B> for those\n"
110 " who are familiar with less and lynx.\n"
112 "o Press <E>, <X>, <Enter> or <Esc><Esc> to exit.\n"
115 "Alternate Configuration Files\n"
116 "-----------------------------\n"
117 "Menuconfig supports the use of alternate configuration files for\n"
118 "those who, for various reasons, find it necessary to switch\n"
119 "between different kernel configurations.\n"
121 "At the end of the main menu you will find two options. One is\n"
122 "for saving the current configuration to a file of your choosing.\n"
123 "The other option is for loading a previously saved alternate\n"
126 "Even if you don't use alternate configuration files, but you\n"
127 "find during a Menuconfig session that you have completely messed\n"
128 "up your settings, you may use the \"Load Alternate...\" option to\n"
129 "restore your previously saved settings from \".config\" without\n"
130 "restarting Menuconfig.\n"
132 "Other information\n"
133 "-----------------\n"
134 "If you use Menuconfig in an XTERM window make sure you have your\n"
135 "$TERM variable set to point to a xterm definition which supports color.\n"
136 "Otherwise, Menuconfig will look rather bad. Menuconfig will not\n"
137 "display correctly in a RXVT window because rxvt displays only one\n"
138 "intensity of color, bright.\n"
140 "Menuconfig will display larger menus on screens or xterms which are\n"
141 "set to display more than the standard 25 row by 80 column geometry.\n"
142 "In order for this to work, the \"stty size\" command must be able to\n"
143 "display the screen's current row and column geometry. I STRONGLY\n"
144 "RECOMMEND that you make sure you do NOT have the shell variables\n"
145 "LINES and COLUMNS exported into your environment. Some distributions\n"
146 "export those variables via /etc/profile. Some ncurses programs can\n"
147 "become confused when those variables (LINES & COLUMNS) don't reflect\n"
148 "the true screen size.\n"
150 "Optional personality available\n"
151 "------------------------------\n"
152 "If you prefer to have all of the kernel options listed in a single\n"
153 "menu, rather than the default multimenu hierarchy, run the menuconfig\n"
154 "with MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
156 "make MENUCONFIG_MODE=single_menu menuconfig\n"
158 "<Enter> will then unroll the appropriate category, or enfold it if it\n"
159 "is already unrolled.\n"
161 "Note that this mode can eventually be a little more CPU expensive\n"
162 "(especially with a larger number of unrolled categories) than the\n"
165 "Different color themes available\n"
166 "--------------------------------\n"
167 "It is possible to select different color themes using the variable\n"
168 "MENUCONFIG_COLOR. To select a theme use:\n"
170 "make MENUCONFIG_COLOR=<theme> menuconfig\n"
172 "Available themes are\n"
173 " mono => selects colors suitable for monochrome displays\n"
174 " blackbg => selects a color scheme with black background\n"
175 " classic => theme with blue background. The classic look\n"
176 " bluetitle => a LCD friendly version of classic. (default)\n"
178 menu_instructions[] = N_(
179 "Arrow keys navigate the menu. "
180 "<Enter> selects submenus --->. "
181 "Highlighted letters are hotkeys. "
182 "Pressing <Y> includes, <N> excludes, <M> modularizes features. "
183 "Press <Esc><Esc> to exit, <?> for Help, </> for Search. "
184 "Legend: [*] built-in [ ] excluded <M> module < > module capable"),
185 radiolist_instructions[] = N_(
186 "Use the arrow keys to navigate this window or "
187 "press the hotkey of the item you wish to select "
188 "followed by the <SPACE BAR>. "
189 "Press <?> for additional information about this option."),
190 inputbox_instructions_int[] = N_(
191 "Please enter a decimal value. "
192 "Fractions will not be accepted. "
193 "Use the <TAB> key to move from the input field to the buttons below it."),
194 inputbox_instructions_hex[] = N_(
195 "Please enter a hexadecimal value. "
196 "Use the <TAB> key to move from the input field to the buttons below it."),
197 inputbox_instructions_string[] = N_(
198 "Please enter a string value. "
199 "Use the <TAB> key to move from the input field to the buttons below it."),
201 "This feature depends on another which has been configured as a module.\n"
202 "As a result, this feature will be built as a module."),
204 "There is no help available for this kernel option.\n"),
205 load_config_text[] = N_(
206 "Enter the name of the configuration file you wish to load. "
207 "Accept the name shown to restore the configuration you "
208 "last retrieved. Leave blank to abort."),
209 load_config_help[] = N_(
211 "For various reasons, one may wish to keep several different kernel\n"
212 "configurations available on a single machine.\n"
214 "If you have saved a previous configuration in a file other than the\n"
215 "kernel's default, entering the name of the file here will allow you\n"
216 "to modify that configuration.\n"
218 "If you are uncertain, then you have probably never used alternate\n"
219 "configuration files. You should therefor leave this blank to abort.\n"),
220 save_config_text[] = N_(
221 "Enter a filename to which this configuration should be saved "
222 "as an alternate. Leave blank to abort."),
223 save_config_help[] = N_(
225 "For various reasons, one may wish to keep different kernel\n"
226 "configurations available on a single machine.\n"
228 "Entering a file name here will allow you to later retrieve, modify\n"
229 "and use the current configuration as an alternate to whatever\n"
230 "configuration options you have selected at that time.\n"
232 "If you are uncertain what all this means then you should probably\n"
233 "leave this blank.\n"),
236 "Search for CONFIG_ symbols and display their relations.\n"
237 "Regular expressions are allowed.\n"
238 "Example: search for \"^FOO\"\n"
240 "-----------------------------------------------------------------\n"
242 "Prompt: Foo bus is used to drive the bar HW\n"
243 "Defined at drivers/pci/Kconfig:47\n"
244 "Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
246 " -> Bus options (PCI, PCMCIA, EISA, MCA, ISA)\n"
247 " -> PCI support (PCI [=y])\n"
248 " -> PCI access mode (<choice> [=y])\n"
249 "Selects: LIBCRC32\n"
251 "-----------------------------------------------------------------\n"
252 "o The line 'Prompt:' shows the text used in the menu structure for\n"
253 " this CONFIG_ symbol\n"
254 "o The 'Defined at' line tell at what file / line number the symbol\n"
256 "o The 'Depends on:' line tell what symbols needs to be defined for\n"
257 " this symbol to be visible in the menu (selectable)\n"
258 "o The 'Location:' lines tell where in the menu structure this symbol\n"
260 " A location followed by a [=y] indicate that this is a selectable\n"
261 " menu item - and current value is displayed inside brackets.\n"
262 "o The 'Selects:' line tell what symbol will be automatically\n"
263 " selected if this symbol is selected (y or m)\n"
264 "o The 'Selected by' line tell what symbol has selected this symbol\n"
266 "Only relevant lines are shown.\n"
269 "Examples: USB => find all CONFIG_ symbols containing USB\n"
270 " ^USB => find all CONFIG_ symbols starting with USB\n"
271 " USB$ => find all CONFIG_ symbols ending with USB\n"
274 static char filename[PATH_MAX+1] = ".config";
276 static struct termios ios_org;
277 static int rows = 0, cols = 0;
278 static struct menu *current_menu;
279 static int child_count;
280 static int single_menu_mode;
282 static void conf(struct menu *menu);
283 static void conf_choice(struct menu *menu);
284 static void conf_string(struct menu *menu);
285 static void conf_load(void);
286 static void conf_save(void);
287 static void show_textbox(const char *title, const char *text, int r, int c);
288 static void show_helptext(const char *title, const char *text);
289 static void show_help(struct menu *menu);
291 static void init_wsize(void)
296 if (!ioctl(STDIN_FILENO, TIOCGWINSZ, &ws)) {
302 env = getenv("LINES");
309 env = getenv("COLUMNS");
316 if (rows < 19 || cols < 80) {
317 fprintf(stderr, N_("Your display is too small to run Menuconfig!\n"));
318 fprintf(stderr, N_("It must be at least 19 lines by 80 columns.\n"));
326 static void get_prompt_str(struct gstr *r, struct property *prop)
329 struct menu *submenu[8], *menu;
331 str_printf(r, "Prompt: %s\n", prop->text);
332 str_printf(r, " Defined at %s:%d\n", prop->menu->file->name,
334 if (!expr_is_yes(prop->visible.expr)) {
335 str_append(r, " Depends on: ");
336 expr_gstr_print(prop->visible.expr, r);
339 menu = prop->menu->parent;
340 for (i = 0; menu != &rootmenu && i < 8; menu = menu->parent)
343 str_printf(r, " Location:\n");
344 for (j = 4; --i >= 0; j += 2) {
346 str_printf(r, "%*c-> %s", j, ' ', menu_get_prompt(menu));
348 str_printf(r, " (%s [=%s])", menu->sym->name ?
349 menu->sym->name : "<choice>",
350 sym_get_string_value(menu->sym));
357 static void get_symbol_str(struct gstr *r, struct symbol *sym)
360 struct property *prop;
362 str_printf(r, "Symbol: %s [=%s]\n", sym->name,
363 sym_get_string_value(sym));
364 for_all_prompts(sym, prop)
365 get_prompt_str(r, prop);
367 for_all_properties(sym, prop, P_SELECT) {
369 str_append(r, " Selects: ");
372 str_printf(r, " && ");
373 expr_gstr_print(prop->expr, r);
377 if (sym->rev_dep.expr) {
378 str_append(r, " Selected by: ");
379 expr_gstr_print(sym->rev_dep.expr, r);
382 str_append(r, "\n\n");
385 static struct gstr get_relations_str(struct symbol **sym_arr)
388 struct gstr res = str_new();
391 for (i = 0; sym_arr && (sym = sym_arr[i]); i++)
392 get_symbol_str(&res, sym);
394 str_append(&res, "No matches found.\n");
398 static void search_conf(void)
400 struct symbol **sym_arr;
405 dres = dialog_inputbox(_("Search Configuration Parameter"),
406 _("Enter CONFIG_ (sub)string to search for (omit CONFIG_)"),
412 show_helptext(_("Search Configuration"), search_help);
418 sym_arr = sym_re_search(dialog_input_result);
419 res = get_relations_str(sym_arr);
421 show_textbox(_("Search Results"), str_get(&res), 0, 0);
425 static void build_conf(struct menu *menu)
428 struct property *prop;
430 int type, tmp, doint = 2;
434 if (!menu_is_visible(menu))
440 if (prop && menu != current_menu) {
441 const char *prompt = menu_get_prompt(menu);
442 switch (prop->type) {
445 if (single_menu_mode) {
447 menu->data ? "-->" : "++>",
448 indent + 1, ' ', prompt);
450 item_make(" %*c%s --->", indent + 1, ' ', prompt);
454 if (single_menu_mode && menu->data)
460 item_make("---%*c%s", indent + 1, ' ', prompt);
470 type = sym_get_type(sym);
471 if (sym_is_choice(sym)) {
472 struct symbol *def_sym = sym_get_choice_value(sym);
473 struct menu *def_menu = NULL;
476 for (child = menu->list; child; child = child->next) {
477 if (menu_is_visible(child) && child->sym == def_sym)
481 val = sym_get_tristate_value(sym);
482 if (sym_is_changable(sym)) {
485 item_make("[%c]", val == no ? ' ' : '*');
489 case yes: ch = '*'; break;
490 case mod: ch = 'M'; break;
491 default: ch = ' '; break;
493 item_make("<%c>", ch);
500 item_set_tag(def_menu ? 't' : ':');
504 item_add_str("%*c%s", indent + 1, ' ', menu_get_prompt(menu));
507 item_add_str(" (%s)", menu_get_prompt(def_menu));
508 item_add_str(" --->");
509 if (def_menu->list) {
511 build_conf(def_menu);
518 if (menu == current_menu) {
519 item_make("---%*c%s", indent + 1, ' ', menu_get_prompt(menu));
525 val = sym_get_tristate_value(sym);
526 if (sym_is_choice_value(sym) && val == yes) {
533 if (sym_is_changable(sym))
534 item_make("[%c]", val == no ? ' ' : '*');
542 case yes: ch = '*'; break;
543 case mod: ch = 'M'; break;
544 default: ch = ' '; break;
546 if (sym_is_changable(sym))
547 item_make("<%c>", ch);
554 tmp = 2 + strlen(sym_get_string_value(sym)); /* () = 2 */
555 item_make("(%s)", sym_get_string_value(sym));
556 tmp = indent - tmp + 4;
559 item_add_str("%*c%s%s", tmp, ' ', menu_get_prompt(menu),
560 (sym_has_value(sym) || !sym_is_changable(sym)) ?
567 item_add_str("%*c%s%s", indent + 1, ' ', menu_get_prompt(menu),
568 (sym_has_value(sym) || !sym_is_changable(sym)) ?
570 if (menu->prompt->type == P_MENU) {
571 item_add_str(" --->");
578 for (child = menu->list; child; child = child->next)
583 static void conf(struct menu *menu)
585 struct menu *submenu;
586 const char *prompt = menu_get_prompt(menu);
588 struct menu *active_menu = NULL;
598 if (menu == &rootmenu) {
601 item_make(_(" Load an Alternate Configuration File"));
603 item_make(_(" Save an Alternate Configuration File"));
607 res = dialog_menu(prompt ? prompt : _("Main Menu"),
608 _(menu_instructions),
609 rows, cols, rows - 10,
610 active_menu, &s_scroll);
611 if (res == 1 || res == 255)
613 if (!item_activate_selected())
618 submenu = item_data();
619 active_menu = item_data();
624 switch (item_tag()) {
626 if (single_menu_mode)
627 submenu->data = (void *) (long) !submenu->data;
632 if (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)
633 conf_choice(submenu);
634 else if (submenu->prompt->type == P_MENU)
638 conf_string(submenu);
652 show_helptext("README", _(mconf_readme));
655 if (item_is_tag('t')) {
656 if (sym_set_tristate_value(sym, yes))
658 if (sym_set_tristate_value(sym, mod))
659 show_textbox(NULL, setmod_text, 6, 74);
663 if (item_is_tag('t'))
664 sym_set_tristate_value(sym, no);
667 if (item_is_tag('t'))
668 sym_set_tristate_value(sym, mod);
671 if (item_is_tag('t'))
672 sym_toggle_tristate_value(sym);
673 else if (item_is_tag('m'))
683 static void show_textbox(const char *title, const char *text, int r, int c)
686 dialog_textbox(title, text, r ? r : rows, c ? c : cols);
689 static void show_helptext(const char *title, const char *text)
691 show_textbox(title, text, 0, 0);
694 static void show_help(struct menu *menu)
696 struct gstr help = str_new();
697 struct symbol *sym = menu->sym;
702 str_printf(&help, "CONFIG_%s:\n\n", sym->name);
703 str_append(&help, _(sym->help));
704 str_append(&help, "\n");
707 str_append(&help, nohelp_text);
709 get_symbol_str(&help, sym);
710 show_helptext(menu_get_prompt(menu), str_get(&help));
714 static void conf_choice(struct menu *menu)
716 const char *prompt = menu_get_prompt(menu);
718 struct symbol *active;
720 active = sym_get_choice_value(menu->sym);
727 for (child = menu->list; child; child = child->next) {
728 if (!menu_is_visible(child))
730 item_make("%s", menu_get_prompt(child));
731 item_set_data(child);
732 if (child->sym == active)
733 item_set_selected(1);
734 if (child->sym == sym_get_choice_value(menu->sym))
738 res = dialog_checklist(prompt ? prompt : _("Main Menu"),
739 _(radiolist_instructions),
741 selected = item_activate_selected();
746 sym_set_tristate_value(child->sym, yes);
763 static void conf_string(struct menu *menu)
765 const char *prompt = menu_get_prompt(menu);
771 switch (sym_get_type(menu->sym)) {
773 heading = _(inputbox_instructions_int);
776 heading = _(inputbox_instructions_hex);
779 heading = _(inputbox_instructions_string);
782 heading = "Internal mconf error!";
785 res = dialog_inputbox(prompt ? prompt : _("Main Menu"),
787 sym_get_string_value(menu->sym));
790 if (sym_set_string_value(menu->sym, dialog_input_result))
792 show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
803 static void conf_load(void)
809 res = dialog_inputbox(NULL, load_config_text,
813 if (!dialog_input_result[0])
815 if (!conf_read(dialog_input_result))
817 show_textbox(NULL, _("File does not exist!"), 5, 38);
820 show_helptext(_("Load Alternate Configuration"), load_config_help);
828 static void conf_save(void)
833 res = dialog_inputbox(NULL, save_config_text,
837 if (!dialog_input_result[0])
839 if (!conf_write(dialog_input_result))
841 show_textbox(NULL, _("Can't create file! Probably a nonexistent directory."), 5, 60);
844 show_helptext(_("Save Alternate Configuration"), save_config_help);
852 static void conf_cleanup(void)
854 tcsetattr(1, TCSAFLUSH, &ios_org);
857 int main(int ac, char **av)
863 setlocale(LC_ALL, "");
864 bindtextdomain(PACKAGE, LOCALEDIR);
870 sym = sym_lookup("KERNELVERSION", 0);
872 sprintf(menu_backtitle, _("Linux Kernel v%s Configuration"),
873 sym_get_string_value(sym));
875 mode = getenv("MENUCONFIG_MODE");
877 if (!strcasecmp(mode, "single_menu"))
878 single_menu_mode = 1;
881 tcgetattr(1, &ios_org);
882 atexit(conf_cleanup);
885 init_dialog(menu_backtitle);
888 res = dialog_yesno(NULL,
889 _("Do you wish to save your "
890 "new kernel configuration?"),
894 if (conf_write(NULL)) {
895 fprintf(stderr, _("\n\n"
896 "Error during writing of the kernel configuration.\n"
897 "Your kernel configuration changes were NOT saved."
902 "*** End of Linux kernel configuration.\n"
903 "*** Execute 'make' to build the kernel or try 'make help'."
906 fprintf(stderr, _("\n\n"
907 "Your kernel configuration changes were NOT saved."