busybox: add a reworked implementation of menuconfig support, this time with a guard option that keeps all symbols at default values until an extra option is activated

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 39435

1 files changed, 269 insertions, 0 deletions

diff --git a/package/utils/busybox/config/modutils/Config.in b/package/utils/busybox/config/modutils/Config.in
new file mode 100644
index 0000000000..cf263a3d07
--- /dev/null
+++ b/package/utils/busybox/config/modutils/Config.in
@@ -0,0 +1,269 @@
+# DO NOT EDIT. This file is generated from Config.src
+#
+# For a description of the syntax of this configuration file,
+# see scripts/kbuild/config-language.txt.
+#
+
+menu "Linux Module Utilities"
+
+config BUSYBOX_CONFIG_MODINFO
+	bool "modinfo"
+	default BUSYBOX_DEFAULT_MODINFO
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  Show information about a Linux Kernel module
+
+config BUSYBOX_CONFIG_MODPROBE_SMALL
+	bool "Simplified modutils"
+	default BUSYBOX_DEFAULT_MODPROBE_SMALL
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  Simplified modutils.
+
+	  With this option modprobe does not require modules.dep file
+	  and does not use /etc/modules.conf file.
+	  It scans module files in /lib/modules/`uname -r` and
+	  determines dependencies and module alias names on the fly.
+	  This may make module loading slower, most notably
+	  when one needs to load module by alias (this requires
+	  scanning through module _bodies_).
+
+	  At the first attempt to load a module by alias modprobe
+	  will try to generate modules.dep.bb file in order to speed up
+	  future loads by alias. Failure to do so (read-only /lib/modules,
+	  etc) is not reported, and future modprobes will be slow too.
+
+	  NB: modules.dep.bb file format is not compatible
+	  with modules.dep file as created/used by standard module tools.
+
+	  Additional module parameters can be stored in
+	  /etc/modules/$module_name files.
+
+	  Apart from modprobe, other utilities are also provided:
+	  - insmod is an alias to modprobe
+	  - rmmod is an alias to modprobe -r
+	  - depmod generates modules.dep.bb
+
+	  As of 2008-07, this code is experimental. It is 14kb smaller
+	  than "non-small" modutils.
+
+config BUSYBOX_CONFIG_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE
+	bool "Accept module options on modprobe command line"
+	default BUSYBOX_DEFAULT_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE
+	depends on BUSYBOX_CONFIG_MODPROBE_SMALL
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  Allow insmod and modprobe take module options from command line.
+
+config BUSYBOX_CONFIG_FEATURE_MODPROBE_SMALL_CHECK_ALREADY_LOADED
+	bool "Skip loading of already loaded modules"
+	default BUSYBOX_DEFAULT_FEATURE_MODPROBE_SMALL_CHECK_ALREADY_LOADED
+	depends on BUSYBOX_CONFIG_MODPROBE_SMALL
+	help
+	  Check if the module is already loaded.
+
+config BUSYBOX_CONFIG_INSMOD
+	bool "insmod"
+	default BUSYBOX_DEFAULT_INSMOD
+	depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  insmod is used to load specified modules in the running kernel.
+
+config BUSYBOX_CONFIG_RMMOD
+	bool "rmmod"
+	default BUSYBOX_DEFAULT_RMMOD
+	depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  rmmod is used to unload specified modules from the kernel.
+
+config BUSYBOX_CONFIG_LSMOD
+	bool "lsmod"
+	default BUSYBOX_DEFAULT_LSMOD
+	depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  lsmod is used to display a list of loaded modules.
+
+config BUSYBOX_CONFIG_FEATURE_LSMOD_PRETTY_2_6_OUTPUT
+	bool "Pretty output"
+	default BUSYBOX_DEFAULT_FEATURE_LSMOD_PRETTY_2_6_OUTPUT
+	depends on BUSYBOX_CONFIG_LSMOD
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  This option makes output format of lsmod adjusted to
+	  the format of module-init-tools for Linux kernel 2.6.
+	  Increases size somewhat.
+
+config BUSYBOX_CONFIG_MODPROBE
+	bool "modprobe"
+	default BUSYBOX_DEFAULT_MODPROBE
+	depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  Handle the loading of modules, and their dependencies on a high
+	  level.
+
+config BUSYBOX_CONFIG_FEATURE_MODPROBE_BLACKLIST
+	bool "Blacklist support"
+	default BUSYBOX_DEFAULT_FEATURE_MODPROBE_BLACKLIST
+	depends on BUSYBOX_CONFIG_MODPROBE
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  Say 'y' here to enable support for the 'blacklist' command in
+	  modprobe.conf. This prevents the alias resolver to resolve
+	  blacklisted modules. This is useful if you want to prevent your
+	  hardware autodetection scripts to load modules like evdev, frame
+	  buffer drivers etc.
+
+config BUSYBOX_CONFIG_DEPMOD
+	bool "depmod"
+	default BUSYBOX_DEFAULT_DEPMOD
+	depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  depmod generates modules.dep (and potentially modules.alias
+	  and modules.symbols) that contain dependency information
+	  for modprobe.
+
+comment "Options common to multiple modutils"
+
+config BUSYBOX_CONFIG_FEATURE_2_4_MODULES
+	bool "Support version 2.2/2.4 Linux kernels"
+	default BUSYBOX_DEFAULT_FEATURE_2_4_MODULES
+	depends on BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_RMMOD || BUSYBOX_CONFIG_LSMOD
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  Support module loading for 2.2.x and 2.4.x Linux kernels.
+	  This increases size considerably. Say N unless you plan
+	  to run ancient kernels.
+
+config BUSYBOX_CONFIG_FEATURE_INSMOD_TRY_MMAP
+	bool "Try to load module from a mmap'ed area"
+	default BUSYBOX_DEFAULT_FEATURE_INSMOD_TRY_MMAP
+	depends on BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE_SMALL
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  This option causes module loading code to try to mmap
+	  module first. If it does not work (for example,
+	  it does not work for compressed modules), module will be read
+	  (and unpacked if needed) into a memory block allocated by malloc.
+
+	  The only case when mmap works but malloc does not is when
+	  you are trying to load a big module on a very memory-constrained
+	  machine. Malloc will momentarily need 2x as much memory as mmap.
+
+	  Choosing N saves about 250 bytes of code (on 32-bit x86).
+
+config BUSYBOX_CONFIG_FEATURE_INSMOD_VERSION_CHECKING
+	bool "Enable module version checking"
+	default BUSYBOX_DEFAULT_FEATURE_INSMOD_VERSION_CHECKING
+	depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && (BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE)
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  Support checking of versions for modules. This is used to
+	  ensure that the kernel and module are made for each other.
+
+config BUSYBOX_CONFIG_FEATURE_INSMOD_KSYMOOPS_SYMBOLS
+	bool "Add module symbols to kernel symbol table"
+	default BUSYBOX_DEFAULT_FEATURE_INSMOD_KSYMOOPS_SYMBOLS
+	depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && (BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE)
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  By adding module symbols to the kernel symbol table, Oops messages
+	  occuring within kernel modules can be properly debugged. By enabling
+	  this feature, module symbols will always be added to the kernel symbol
+	  table for proper debugging support. If you are not interested in
+	  Oops messages from kernel modules, say N.
+
+config BUSYBOX_CONFIG_FEATURE_INSMOD_LOADINKMEM
+	bool "In kernel memory optimization (uClinux only)"
+	default BUSYBOX_DEFAULT_FEATURE_INSMOD_LOADINKMEM
+	depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && (BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE)
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  This is a special uClinux only memory optimization that lets insmod
+	  load the specified kernel module directly into kernel space, reducing
+	  memory usage by preventing the need for two copies of the module
+	  being loaded into memory.
+
+config BUSYBOX_CONFIG_FEATURE_INSMOD_LOAD_MAP
+	bool "Enable insmod load map (-m) option"
+	default BUSYBOX_DEFAULT_FEATURE_INSMOD_LOAD_MAP
+	depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && BUSYBOX_CONFIG_INSMOD
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  Enabling this, one would be able to get a load map
+	  output on stdout. This makes kernel module debugging
+	  easier.
+	  If you don't plan to debug kernel modules, you
+	  don't need this option.
+
+config BUSYBOX_CONFIG_FEATURE_INSMOD_LOAD_MAP_FULL
+	bool "Symbols in load map"
+	default BUSYBOX_DEFAULT_FEATURE_INSMOD_LOAD_MAP_FULL
+	depends on BUSYBOX_CONFIG_FEATURE_INSMOD_LOAD_MAP && !BUSYBOX_CONFIG_MODPROBE_SMALL
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  Without this option, -m will only output section
+	  load map. With this option, -m will also output
+	  symbols load map.
+
+config BUSYBOX_CONFIG_FEATURE_CHECK_TAINTED_MODULE
+	bool "Support tainted module checking with new kernels"
+	default BUSYBOX_DEFAULT_FEATURE_CHECK_TAINTED_MODULE
+	depends on (BUSYBOX_CONFIG_LSMOD || BUSYBOX_CONFIG_FEATURE_2_4_MODULES) && !BUSYBOX_CONFIG_MODPROBE_SMALL
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  Support checking for tainted modules. These are usually binary
+	  only modules that will make the linux-kernel list ignore your
+	  support request.
+	  This option is required to support GPLONLY modules.
+
+config BUSYBOX_CONFIG_FEATURE_MODUTILS_ALIAS
+	bool "Support for module.aliases file"
+	default BUSYBOX_DEFAULT_FEATURE_MODUTILS_ALIAS
+	depends on BUSYBOX_CONFIG_DEPMOD || BUSYBOX_CONFIG_MODPROBE
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  Generate and parse modules.alias containing aliases for bus
+	  identifiers:
+	    alias pcmcia:m*c*f03fn*pfn*pa*pb*pc*pd* parport_cs
+
+	  and aliases for logical modules names e.g.:
+	    alias padlock_aes aes
+	    alias aes_i586 aes
+	    alias aes_generic aes
+
+	  Say Y if unsure.
+
+config BUSYBOX_CONFIG_FEATURE_MODUTILS_SYMBOLS
+	bool "Support for module.symbols file"
+	default BUSYBOX_DEFAULT_FEATURE_MODUTILS_SYMBOLS
+	depends on BUSYBOX_CONFIG_DEPMOD || BUSYBOX_CONFIG_MODPROBE
+	select BUSYBOX_CONFIG_PLATFORM_LINUX
+	help
+	  Generate and parse modules.symbols containing aliases for
+	  symbol_request() kernel calls, such as:
+	    alias symbol:usb_sg_init usbcore
+
+	  Say Y if unsure.
+
+config BUSYBOX_CONFIG_DEFAULT_MODULES_DIR
+	string "Default directory containing modules"
+	default BUSYBOX_DEFAULT_DEFAULT_MODULES_DIR
+	depends on BUSYBOX_CONFIG_DEPMOD || BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_MODPROBE || BUSYBOX_CONFIG_MODPROBE_SMALL || BUSYBOX_CONFIG_MODINFO
+	help
+	  Directory that contains kernel modules.
+	  Defaults to "/lib/modules"
+
+config BUSYBOX_CONFIG_DEFAULT_DEPMOD_FILE
+	string "Default name of modules.dep"
+	default BUSYBOX_DEFAULT_DEFAULT_DEPMOD_FILE
+	depends on BUSYBOX_CONFIG_DEPMOD || BUSYBOX_CONFIG_MODPROBE || BUSYBOX_CONFIG_MODPROBE_SMALL || BUSYBOX_CONFIG_MODINFO
+	help
+	  Filename that contains kernel modules dependencies.
+	  Defaults to "modules.dep"
+
+endmenu