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#
# For a description of the syntax of this configuration file,
# see scripts/kbuild/config-language.txt.
#
menu "Linux Module Utilities"
config BUSYBOX_CONFIG_MODPROBE_SMALL
bool "Simplified modutils"
default n
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 n
depends on BUSYBOX_CONFIG_MODPROBE_SMALL
help
Allow insmod and modprobe take module options from command line.
N.B. Very bloaty.
config BUSYBOX_CONFIG_FEATURE_MODPROBE_SMALL_CHECK_ALREADY_LOADED
bool "Skip loading of already loaded modules"
default n
depends on BUSYBOX_CONFIG_MODPROBE_SMALL
help
Check if the module is already loaded.
N.B. It's racy.
config BUSYBOX_CONFIG_DEPMOD
bool "depmod"
default n
depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
help
depmod generates modules.dep (FIXME: elaborate)
config BUSYBOX_CONFIG_FEATURE_DEPMOD_PRUNE_FANCY
bool "Fancy dependency pruning"
default n
depends on BUSYBOX_CONFIG_DEPMOD
help
By default modules.dep contains all dependencies as listed by
the modules.
If you enable this option then we remove implied modules from
the dependencies.
This makes depmod somewhat bigger but generates a smaller
modules.dep file.
If unsure, say N.
config BUSYBOX_CONFIG_FEATURE_DEPMOD_ALIAS
bool "Alias support"
default n
depends on BUSYBOX_CONFIG_DEPMOD
help
By default modules.dep does not contain alias information.
Enable this to emit aliases of the form:
alias pcmcia:m*c*f03fn*pfn*pa*pb*pc*pd* parport_cs
config BUSYBOX_CONFIG_INSMOD
bool "insmod"
default y
depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
help
insmod is used to load specified modules in the running kernel.
config BUSYBOX_CONFIG_FEATURE_INSMOD_VERSION_CHECKING
bool "Module version checking"
default n
depends on BUSYBOX_CONFIG_INSMOD && BUSYBOX_CONFIG_FEATURE_2_4_MODULES
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 n
depends on BUSYBOX_CONFIG_INSMOD && BUSYBOX_CONFIG_FEATURE_2_4_MODULES
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 properly 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 n
depends on BUSYBOX_CONFIG_INSMOD && BUSYBOX_CONFIG_FEATURE_2_4_MODULES
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 load map (-m) option"
default n
depends on BUSYBOX_CONFIG_INSMOD && ( BUSYBOX_CONFIG_FEATURE_2_4_MODULES || BUSYBOX_CONFIG_FEATURE_2_6_MODULES )
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 n
depends on BUSYBOX_CONFIG_FEATURE_INSMOD_LOAD_MAP
help
Without this option, -m will only output section
load map. With this option, -m will also output
symbols load map.
config BUSYBOX_CONFIG_RMMOD
bool "rmmod"
default y
depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
help
rmmod is used to unload specified modules from the kernel.
config BUSYBOX_CONFIG_LSMOD
bool "lsmod"
default y
depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
help
lsmod is used to display a list of loaded modules.
config BUSYBOX_CONFIG_FEATURE_LSMOD_PRETTY_2_6_OUTPUT
bool "Pretty output for 2.6.x Linux kernels"
default y
depends on BUSYBOX_CONFIG_LSMOD
help
This option makes output format of lsmod adjusted to
the format of module-init-tools for Linux kernel 2.6.
config BUSYBOX_CONFIG_MODPROBE
bool "modprobe"
default n
depends on !BUSYBOX_CONFIG_MODPROBE_SMALL
help
Handle the loading of modules, and their dependencies on a high
level.
Note that in the state, modprobe does not understand multiple
module options from the configuration file. See option below.
config BUSYBOX_CONFIG_FEATURE_MODPROBE_MULTIPLE_OPTIONS
bool
prompt "Multiple options parsing"
default n
depends on BUSYBOX_CONFIG_MODPROBE
help
Allow modprobe to understand more than one option to pass to
modules.
This is a WIP, while waiting for a common argument parsing
common amongst all BB applets (shell, modprobe, etc...) and
adds around 600 bytes on x86, 700 bytes on ARM. The code is
biggish and uggly, but just works.
Saying Y here is not a bad idea if you're not that short
on storage capacity.
config BUSYBOX_CONFIG_FEATURE_MODPROBE_FANCY_ALIAS
bool
prompt "Fancy alias parsing"
default n
depends on BUSYBOX_CONFIG_MODPROBE && BUSYBOX_CONFIG_FEATURE_2_6_MODULES
help
Say 'y' here to enable parsing of aliases with underscore/dash
mismatch between module name and file name, along with bus-specific
aliases (such as pci:... or usb:... aliases).
config BUSYBOX_CONFIG_FEATURE_MODPROBE_BLACKLIST
bool
prompt "Blacklist support"
default n
depends on BUSYBOX_CONFIG_MODPROBE && BUSYBOX_CONFIG_FEATURE_2_6_MODULES
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.
comment "Options common to multiple modutils"
depends on BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_RMMOD || BUSYBOX_CONFIG_MODPROBE || BUSYBOX_CONFIG_LSMOD || BUSYBOX_CONFIG_DEPMOD
config BUSYBOX_CONFIG_FEATURE_CHECK_TAINTED_MODULE
# Simulate indentation
bool "Support tainted module checking with new kernels"
default y
depends on BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_LSMOD
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_2_4_MODULES
# Simulate indentation
bool "Support version 2.2.x to 2.4.x Linux kernels"
default n
depends on BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_RMMOD || BUSYBOX_CONFIG_MODPROBE
help
Support module loading for 2.2.x and 2.4.x Linux kernels.
Note:
This is automatically enabled if 2.6 modules are not enabled.
config BUSYBOX_CONFIG_FEATURE_2_6_MODULES
# Simulate indentation
bool "Support version 2.6.x Linux kernels"
default y
depends on BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_RMMOD || BUSYBOX_CONFIG_MODPROBE
help
Support module loading for newer 2.6.x Linux kernels.
config BUSYBOX_CONFIG_DEFAULT_MODULES_DIR
# Simulate indentation
string "Default directory containing modules"
default "/lib/modules"
depends on BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_RMMOD || BUSYBOX_CONFIG_MODPROBE || BUSYBOX_CONFIG_MODPROBE_SMALL || BUSYBOX_CONFIG_DEPMOD
help
Directory that contains kernel modules.
Defaults to "/lib/modules"
config BUSYBOX_CONFIG_DEFAULT_DEPMOD_FILE
# Simulate indentation
string "Default name of modules.dep"
default "modules.dep"
depends on BUSYBOX_CONFIG_INSMOD || BUSYBOX_CONFIG_RMMOD || BUSYBOX_CONFIG_MODPROBE || BUSYBOX_CONFIG_MODPROBE_SMALL || BUSYBOX_CONFIG_DEPMOD
help
Filename that contains kernel modules dependencies.
Defaults to "modules.dep"
config BUSYBOX_CONFIG_FEATURE_QUERY_MODULE_INTERFACE
bool
default n
depends on BUSYBOX_CONFIG_FEATURE_2_4_MODULES && !BUSYBOX_CONFIG_FEATURE_2_6_MODULES
endmenu
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