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diff --git a/Documentation/kbuild/kconfig.txt b/Documentation/kbuild/kconfig.txt deleted file mode 100644 index 68c82914c0f3..000000000000 --- a/Documentation/kbuild/kconfig.txt +++ /dev/null @@ -1,272 +0,0 @@ -This file contains some assistance for using "make *config". - -Use "make help" to list all of the possible configuration targets. - -The xconfig ('qconf'), menuconfig ('mconf'), and nconfig ('nconf') -programs also have embedded help text. Be sure to check that for -navigation, search, and other general help text. - -====================================================================== -General --------------------------------------------------- - -New kernel releases often introduce new config symbols. Often more -important, new kernel releases may rename config symbols. When -this happens, using a previously working .config file and running -"make oldconfig" won't necessarily produce a working new kernel -for you, so you may find that you need to see what NEW kernel -symbols have been introduced. - -To see a list of new config symbols, use - - cp user/some/old.config .config - make listnewconfig - -and the config program will list any new symbols, one per line. - -Alternatively, you can use the brute force method: - - make oldconfig - scripts/diffconfig .config.old .config | less - -______________________________________________________________________ -Environment variables for '*config' - -KCONFIG_CONFIG --------------------------------------------------- -This environment variable can be used to specify a default kernel config -file name to override the default name of ".config". - -KCONFIG_OVERWRITECONFIG --------------------------------------------------- -If you set KCONFIG_OVERWRITECONFIG in the environment, Kconfig will not -break symlinks when .config is a symlink to somewhere else. - -CONFIG_ --------------------------------------------------- -If you set CONFIG_ in the environment, Kconfig will prefix all symbols -with its value when saving the configuration, instead of using the default, -"CONFIG_". - -______________________________________________________________________ -Environment variables for '{allyes/allmod/allno/rand}config' - -KCONFIG_ALLCONFIG --------------------------------------------------- -(partially based on lkml email from/by Rob Landley, re: miniconfig) --------------------------------------------------- -The allyesconfig/allmodconfig/allnoconfig/randconfig variants can also -use the environment variable KCONFIG_ALLCONFIG as a flag or a filename -that contains config symbols that the user requires to be set to a -specific value. If KCONFIG_ALLCONFIG is used without a filename where -KCONFIG_ALLCONFIG == "" or KCONFIG_ALLCONFIG == "1", "make *config" -checks for a file named "all{yes/mod/no/def/random}.config" -(corresponding to the *config command that was used) for symbol values -that are to be forced. If this file is not found, it checks for a -file named "all.config" to contain forced values. - -This enables you to create "miniature" config (miniconfig) or custom -config files containing just the config symbols that you are interested -in. Then the kernel config system generates the full .config file, -including symbols of your miniconfig file. - -This 'KCONFIG_ALLCONFIG' file is a config file which contains -(usually a subset of all) preset config symbols. These variable -settings are still subject to normal dependency checks. - -Examples: - KCONFIG_ALLCONFIG=custom-notebook.config make allnoconfig -or - KCONFIG_ALLCONFIG=mini.config make allnoconfig -or - make KCONFIG_ALLCONFIG=mini.config allnoconfig - -These examples will disable most options (allnoconfig) but enable or -disable the options that are explicitly listed in the specified -mini-config files. - -______________________________________________________________________ -Environment variables for 'randconfig' - -KCONFIG_SEED --------------------------------------------------- -You can set this to the integer value used to seed the RNG, if you want -to somehow debug the behaviour of the kconfig parser/frontends. -If not set, the current time will be used. - -KCONFIG_PROBABILITY --------------------------------------------------- -This variable can be used to skew the probabilities. This variable can -be unset or empty, or set to three different formats: - KCONFIG_PROBABILITY y:n split y:m:n split - ----------------------------------------------------------------- - unset or empty 50 : 50 33 : 33 : 34 - N N : 100-N N/2 : N/2 : 100-N - [1] N:M N+M : 100-(N+M) N : M : 100-(N+M) - [2] N:M:L N : 100-N M : L : 100-(M+L) - -where N, M and L are integers (in base 10) in the range [0,100], and so -that: - [1] N+M is in the range [0,100] - [2] M+L is in the range [0,100] - -Examples: - KCONFIG_PROBABILITY=10 - 10% of booleans will be set to 'y', 90% to 'n' - 5% of tristates will be set to 'y', 5% to 'm', 90% to 'n' - KCONFIG_PROBABILITY=15:25 - 40% of booleans will be set to 'y', 60% to 'n' - 15% of tristates will be set to 'y', 25% to 'm', 60% to 'n' - KCONFIG_PROBABILITY=10:15:15 - 10% of booleans will be set to 'y', 90% to 'n' - 15% of tristates will be set to 'y', 15% to 'm', 70% to 'n' - -______________________________________________________________________ -Environment variables for 'syncconfig' - -KCONFIG_NOSILENTUPDATE --------------------------------------------------- -If this variable has a non-blank value, it prevents silent kernel -config updates (requires explicit updates). - -KCONFIG_AUTOCONFIG --------------------------------------------------- -This environment variable can be set to specify the path & name of the -"auto.conf" file. Its default value is "include/config/auto.conf". - -KCONFIG_TRISTATE --------------------------------------------------- -This environment variable can be set to specify the path & name of the -"tristate.conf" file. Its default value is "include/config/tristate.conf". - -KCONFIG_AUTOHEADER --------------------------------------------------- -This environment variable can be set to specify the path & name of the -"autoconf.h" (header) file. -Its default value is "include/generated/autoconf.h". - - -====================================================================== -menuconfig --------------------------------------------------- - -SEARCHING for CONFIG symbols - -Searching in menuconfig: - - The Search function searches for kernel configuration symbol - names, so you have to know something close to what you are - looking for. - - Example: - /hotplug - This lists all config symbols that contain "hotplug", - e.g., HOTPLUG_CPU, MEMORY_HOTPLUG. - - For search help, enter / followed by TAB-TAB (to highlight - <Help>) and Enter. This will tell you that you can also use - regular expressions (regexes) in the search string, so if you - are not interested in MEMORY_HOTPLUG, you could try - - /^hotplug - - When searching, symbols are sorted thus: - - first, exact matches, sorted alphabetically (an exact match - is when the search matches the complete symbol name); - - then, other matches, sorted alphabetically. - For example: ^ATH.K matches: - ATH5K ATH9K ATH5K_AHB ATH5K_DEBUG [...] ATH6KL ATH6KL_DEBUG - [...] ATH9K_AHB ATH9K_BTCOEX_SUPPORT ATH9K_COMMON [...] - of which only ATH5K and ATH9K match exactly and so are sorted - first (and in alphabetical order), then come all other symbols, - sorted in alphabetical order. - -______________________________________________________________________ -User interface options for 'menuconfig' - -MENUCONFIG_COLOR --------------------------------------------------- -It is possible to select different color themes using the variable -MENUCONFIG_COLOR. To select a theme use: - - make MENUCONFIG_COLOR=<theme> menuconfig - -Available themes are: - mono => selects colors suitable for monochrome displays - blackbg => selects a color scheme with black background - classic => theme with blue background. The classic look - bluetitle => a LCD friendly version of classic. (default) - -MENUCONFIG_MODE --------------------------------------------------- -This mode shows all sub-menus in one large tree. - -Example: - make MENUCONFIG_MODE=single_menu menuconfig - - -====================================================================== -nconfig --------------------------------------------------- - -nconfig is an alternate text-based configurator. It lists function -keys across the bottom of the terminal (window) that execute commands. -You can also just use the corresponding numeric key to execute the -commands unless you are in a data entry window. E.g., instead of F6 -for Save, you can just press 6. - -Use F1 for Global help or F3 for the Short help menu. - -Searching in nconfig: - - You can search either in the menu entry "prompt" strings - or in the configuration symbols. - - Use / to begin a search through the menu entries. This does - not support regular expressions. Use <Down> or <Up> for - Next hit and Previous hit, respectively. Use <Esc> to - terminate the search mode. - - F8 (SymSearch) searches the configuration symbols for the - given string or regular expression (regex). - -NCONFIG_MODE --------------------------------------------------- -This mode shows all sub-menus in one large tree. - -Example: - make NCONFIG_MODE=single_menu nconfig - - -====================================================================== -xconfig --------------------------------------------------- - -Searching in xconfig: - - The Search function searches for kernel configuration symbol - names, so you have to know something close to what you are - looking for. - - Example: - Ctrl-F hotplug - or - Menu: File, Search, hotplug - - lists all config symbol entries that contain "hotplug" in - the symbol name. In this Search dialog, you may change the - config setting for any of the entries that are not grayed out. - You can also enter a different search string without having - to return to the main menu. - - -====================================================================== -gconfig --------------------------------------------------- - -Searching in gconfig: - - There is no search command in gconfig. However, gconfig does - have several different viewing choices, modes, and options. - -### |