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#
# For a description of the syntax of this configuration file,
# see scripts/kbuild/config-language.txt.
#
mainmenu "BusyBox Configuration"
choice
prompt "Buffer allocation policy"
default "Allocate with Malloc"
help
There are 3 ways BusyBox can handle buffer allocations:
- Use malloc. This costs code size for the call to xmalloc.
- Put them on stack. For some very small machines with limited stack
space, this can be deadly. For most folks, this works just fine.
- Put them in BSS. This works beautifully for computers with a real
MMU (and OS support), but wastes runtime RAM for uCLinux. This
behavior was the only one available for BusyBox versions 0.48 and
earlier.
config CONFIG_FEATURE_BUFFERS_USE_MALLOC
bool "Allocate with Malloc"
config CONFIG_FEATURE_BUFFERS_GO_ON_STACK
bool "Allocate on the Stack"
config CONFIG_FEATURE_BUFFERS_GO_IN_BSS
bool "Allocate in the .bss section"
endchoice
config CONFIG_FEATURE_VERBOSE_USAGE
bool "Show verbose applet usage messages"
default n
help
All BusyBox applets will show more verbose help messages when
busybox is invoked with --help. This will add lots of text to the
busybox binary. In the default configuration, this will add about
13k, but it can add much more depending on your configuration.
config CONFIG_FEATURE_INSTALLER
bool "Support --install [-s] to install applet links at runtime"
default n
help
Enable 'busybox --install [-s]' support. This will allow you to use
busybox at runtime to create hard links or symlinks for all the
applets that are compiled into busybox. This feature requires the
/proc filesystem.
config CONFIG_LOCALE_SUPPORT
bool "Enable locale support (system needs locale for this to work)"
default n
help
Enable this if your system has locale support, and you would like
busybox to support locale settings.
config CONFIG_FEATURE_DEVFS
bool "Support for devfs"
default n
help
Enable if you want BusyBox to work with devfs.
config CONFIG_FEATURE_DEVPTS
bool "Use the devpts filesystem for Unix98 PTYs"
default y if CONFIG_FEATURE_DEVFS
help
Enable if you want BusyBox to use Unix98 PTY support. If enabled,
busybox will use /dev/ptmx for the master side of the pseudoterminal
and /dev/pts/<number> for the slave side. Otherwise, BSD style
/dev/ttyp<number> will be used. To use this option, you should have
devpts or devfs mounted.
config CONFIG_FEATURE_CLEAN_UP
bool "Clean up all memory before exiting (usually not needed)"
default n
help
As a size optimization, busybox by default does not cleanup memory
that is dynamically allocated or close files before exiting. This
saves space and is usually not needed since the OS will clean up for
us. Don't enable this unless you have a really good reason to clean
things up manually.
config CONFIG_FEATURE_SUID
bool "Support for SUID/SGID handling"
default n
help
Please submit a patch to add help text for this item.
config CONFIG_FEATURE_SUID_CONFIG
bool "Runtime SUID/SGID configuration via /etc/busybox.conf"
default y if CONFIG_FEATURE_SUID
depends on CONFIG_FEATURE_SUID
help
Please submit a patch to add help text for this item.
config CONFIG_FEATURE_SUID_CONFIG_QUIET
bool "Suppress warning message if /etc/busybox.conf is not readable"
default n
depends on CONFIG_FEATURE_SUID_CONFIG
help
Please submit a patch to add help text for this item.
endmenu
menu 'Build Options'
config DOSTATIC
bool "Build BusyBox as a static binary (no shared libs)"
default n
help
If you want to build a static BusyBox binary, which does not
use or require any shared libraries, then enable this option.
config DOLFS
bool "Build with Large File Support (for accessing files > 2 GB)"
default n
help
If you want to build BusyBox with large file support, then enable
this option. This will have no effect if your kernel or your C
library lacks large file support for large files. Some of the
programs that can benefit from large file support include dd, gzip,
cp, mount, tar, and many others. If you want to access files larger
than 2 Gigabytes, enable this option. Otherwise, leave it set to 'N'.
config USING_CROSS_COMPILER
bool "Do you want to build BusyBox with a Cross Compiler?"
default n
help
Do you want to build BusyBox with a Cross Compiler? If so,
then enable this option. Otherwise leave it set to 'N'.
config CROSS_COMPILER_PREFIX
string "Cross Compiler prefix"
default "/usr/i386-linux-uclibc/bin/i386-uclibc-"
depends on USING_CROSS_COMPILER
help
If you want to build BusyBox with a cross compiler, then you
will need to set this to the cross-compiler prefix. For example,
if my cross-compiler is /usr/i386-linux-uclibc/bin/i386-uclibc-gcc
then I would enter '/usr/i386-linux-uclibc/bin/i386-uclibc-' here,
which will ensure the correct compiler is used.
config EXTRA_CFLAGS_OPTIONS
string "Any extra CFLAGS options for the compiler?"
default ""
help
Do you want to pass any extra CFLAGS options to the compiler as
you build BusyBox? If so, this is the option for you... For example,
if you want to add some simple compiler switches (like -march=i686),
or check for warnings using -Werror, just those options here.
endmenu
source archival/Config.in
source console-tools/Config.in
source debianutils/Config.in
source editors/Config.in
source fileutils/Config.in
source findutils/Config.in
source init/Config.in
source loginutils/Config.in
source miscutils/Config.in
source modutils/Config.in
source networking/Config.in
source procps/Config.in
source shell/Config.in
source shellutils/Config.in
source sysklogd/Config.in
source textutils/Config.in
source util-linux/Config.in
menu 'Debugging Options'
config DOSTATIC
bool "Build BusyBox as a static binary (no shared libs)"
default n
help
If you want to build a static BusyBox binary, which does not
use or require any shared libraries, then enable this option.
This will make BusyBox be considerable larger, so you should
leave this option false unless you have a good reason (i.e.
your target platform does not support shared libraries, or
you are building an initrd which doesn't need anything but
BusyBox, etc).
Most people will leave this set to 'N'.
config DODEBUG
bool "Build BusyBox with Debugging symbols"
default n
help
Say Y here if you wish to compile BusyBox with debugging symbols.
This will allow you to use a debugger to examine BusyBox internals
while applets are running. This increases the size of the binary
considerably and should only be used when doing development.
If you are doing development and want to debug BusyBox, answer Y.
Otherwise, answer N.
config DODMALLOC
bool "Build BusyBox with dmalloc support"
default n
depends on DODEBUG && !DOEFENCE
help
This enables compiling with dmalloc ( http://dmalloc.com/ )
which is an excellent public domain mem leak and malloc problem
detector. To enable dmalloc, before running busybox you will
want to properly set your environment, for example:
export DMALLOC_OPTIONS=debug=0x34f47d83,inter=100,log=logfile
The 'debug=' value is generated using the following command
dmalloc -p log-stats -p log-non-free -p log-bad-space -p log-elapsed-time \
-p check-fence -p check-heap -p check-lists -p check-blank \
-p check-funcs -p realloc-copy -p allow-free-null
This will make BusyBox be considerable larger and run slower, so
you should leave this option disabled for production use.
config DOEFENCE
bool "Build BusyBox with Electric-fence support"
default n
depends on DODEBUG && !DODMALLOC
help
This enables compiling with Electric-fence support. Electric
fence is another very useful malloc debugging library which used
your computers virtual memory hardware to detect illegal memory
accesses. This support will make BusyBox be considerable larger
and run slower, so you should leave this option disabled unless
you are hunting a hard to find memory problem.
endmenu
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