menu "General Configuration"
-config NITPICK
- bool "See lots more (probably unnecessary) configuration options."
- default n
- help
- Some BusyBox applets have more configuration options than anyone
- will ever care about. To avoid drowining people in complexity, most
- of the applet features that can be set to a sane default value are
- hidden, unless you hit the above switch.
-
- This is better than to telling people to edit the busybox source
- code, but not by much.
-
- See http://en.wikipedia.org/wiki/Fibber_McGee_and_Molly#The_Closet
-
- You have been warned.
-
config DESKTOP
bool "Enable options for full-blown desktop systems"
default n
Select this only if you plan to use busybox on full-blown
desktop machine with common Linux distro, not on an embedded box.
+config FEATURE_ASSUME_UNICODE
+ bool "Assume that 1:1 char/glyph correspondence is not true"
+ default n
+ help
+ This makes various applets aware that one byte is not
+ one character on screen.
+
+ Busybox aims to eventually work correctly with Unicode displays.
+ Any older encodings are not guaranteed to work.
+ Probably by the time when busybox will be fully Unicode-clean,
+ other encodings will be mainly of historic interest.
+
choice
prompt "Buffer allocation policy"
default FEATURE_BUFFERS_USE_MALLOC
- depends on NITPICK
help
There are 3 ways BusyBox can handle buffer allocations:
- Use malloc. This costs code size for the call to xmalloc.
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.
+ applets that are compiled into busybox.
config LOCALE_SUPPORT
bool "Enable locale support (system needs locale for this to work)"
busybox to support locale settings.
config GETOPT_LONG
- bool
+ bool "Support for --long-options"
default y
-# bool "Enable support for --long-options"
-# default n
-# help
-# Enable this if you want busybox applets to use the gnu --long-option
-# style, in addition to single character -a -b -c style options.
+ help
+ Enable this if you want busybox applets to use the gnu --long-option
+ style, in addition to single character -a -b -c style options.
config FEATURE_DEVPTS
bool "Use the devpts filesystem for Unix98 PTYs"
config FEATURE_CLEAN_UP
bool "Clean up all memory before exiting (usually not needed)"
default n
- depends on NITPICK
help
As a size optimization, busybox normally exits without explicitly
freeing dynamically allocated memory or closing files. This saves
Don't enable this unless you have a really good reason to clean
things up manually.
+config FEATURE_PIDFILE
+ bool "Support writing pidfiles"
+ default n
+ help
+ This option makes some applets (e.g. crond, syslogd, inetd) write
+ a pidfile in /var/run. Some applications rely on them.
+
config FEATURE_SUID
bool "Support for SUID/SGID handling"
default n
are login, passwd, su, ping, traceroute, crontab, dnsd, ipcrm, ipcs,
and vlock.
-config FEATURE_SYSLOG
- bool "Support for syslog"
- default n
- help
- This option is auto-selected when you select any applet which may
- send its output to syslog. You do not need to select it manually.
-
config FEATURE_SUID_CONFIG
bool "Runtime SUID/SGID configuration via /etc/busybox.conf"
default n if FEATURE_SUID
The file has to be owned by user root, group root and has to be
writeable only by root:
- (chown 0.0 /etc/busybox.conf; chmod 600 /etc/busybox.conf)
+ (chown 0.0 /etc/busybox.conf; chmod 600 /etc/busybox.conf)
The busybox executable has to be owned by user root, group
root and has to be setuid root for this to work:
- (chown 0.0 /bin/busybox; chmod 4755 /bin/busybox)
+ (chown 0.0 /bin/busybox; chmod 4755 /bin/busybox)
Robert 'sandman' Griebl has more information here:
<url: http://www.softforge.de/bb/suid.html >.
Most people will leave this set to 'N'.
+config FEATURE_PREFER_APPLETS
+ bool "exec prefers applets"
+ default n
+ help
+ This is an experimental option which directs applets about to
+ call 'exec' to try and find an applicable busybox applet before
+ searching the PATH. This is typically done by exec'ing
+ /proc/self/exe.
+ This may affect shell, find -exec, xargs and similar applets.
+ They will use applets even if /bin/<applet> -> busybox link
+ is missing (or is not a link to busybox). However, this causes
+ problems in chroot jails without mounted /proc and with ps/top
+ (command name can be shown as 'exe' for applets started this way).
+
config BUSYBOX_EXEC_PATH
string "Path to BusyBox executable"
default "/proc/self/exe"
executable. If you haven't got /proc, set this to wherever you
want to run BusyBox from.
+# These are auto-selected by other options
+
+config FEATURE_SYSLOG
+ bool "Support for logging to syslog"
+ default n
+ help
+ This option is auto-selected when you select any applet which may
+ send its output to syslog. You do not need to select it manually.
+
+config FEATURE_HAVE_RPC
+ bool "RPC support"
+ default n
+ help
+ This is automatically selected if any of enabled applets need it.
+ You do not need to select it manually.
+
endmenu
menu 'Build Options'
Most people will leave this set to 'N'.
-config BUILD_LIBBUSYBOX
- bool "Build shared libbusybox"
+config PIE
+ bool "Build BusyBox as a position independent executable"
default n
+ depends on !STATIC
help
- Build a shared library libbusybox.so which contains all
- libraries used inside busybox.
+ (TODO: what is it and why/when is it useful?)
+ Most people will leave this set to 'N'.
- This is an experimental feature intended to support the upcoming
- "make standalone" mode. Enabling it against the one big busybox
- binary serves no purpose (and increases the size). You should
- almost certainly say "no" to this right now.
+config NOMMU
+ bool "Force NOMMU build"
+ default n
+ help
+ Busybox tries to detect whether architecture it is being
+ built against supports MMU or not. If this detection fails,
+ or if you want to build NOMMU version of busybox for testing,
+ you may force NOMMU build here.
+
+ Most people will leave this set to 'N'.
-config FEATURE_FULL_LIBBUSYBOX
- bool "Feature-complete libbusybox"
- default n if !FEATURE_SHARED_BUSYBOX
- depends on BUILD_LIBBUSYBOX
+config BUILD_LIBBUSYBOX
+ bool "Build shared libbusybox"
+ default n
+ depends on !FEATURE_PREFER_APPLETS
help
- Build a libbusybox with the complete feature-set, disregarding
- the actually selected config.
+ Build a shared library libbusybox.so.N.N.N which contains all
+ busybox code.
+
+ This feature allows every applet to be built as a tiny
+ separate executable. Enabling it for "one big busybox binary"
+ approach serves no purpose and increases code size.
+ You should almost certainly say "no" to this.
+
+### config FEATURE_FULL_LIBBUSYBOX
+### bool "Feature-complete libbusybox"
+### default n if !FEATURE_SHARED_BUSYBOX
+### depends on BUILD_LIBBUSYBOX
+### help
+### Build a libbusybox with the complete feature-set, disregarding
+### the actually selected config.
+###
+### Normally, libbusybox will only contain the features which are
+### used by busybox itself. If you plan to write a separate
+### standalone application which uses libbusybox say 'Y'.
+###
+### Note: libbusybox is GPL, not LGPL, and exports no stable API that
+### might act as a copyright barrier. We can and will modify the
+### exported function set between releases (even minor version number
+### changes), and happily break out-of-tree features.
+###
+### Say 'N' if in doubt.
+
+config FEATURE_INDIVIDUAL
+ bool "Produce a binary for each applet, linked against libbusybox"
+ default y
+ depends on !STATIC && BUILD_LIBBUSYBOX
+ help
+ If your CPU architecture doesn't allow for sharing text/rodata
+ sections of running binaries, but allows for runtime dynamic
+ libraries, this option will allow you to reduce memory footprint
+ when you have many different applets running at once.
- Normally, libbusybox will only contain the features which are
- used by busybox itself. If you plan to write a separate
- standalone application which uses libbusybox say 'Y'.
+ If your CPU architecture allows for sharing text/rodata,
+ having single binary is more optimal.
- Note: libbusybox is GPL, not LGPL, and exports no stable API that
- might act as a copyright barrier. We can and will modify the
- exported function set between releases (even minor version number
- changes), and happily break out-of-tree features.
+ Each applet will be a tiny program, dynamically linked
+ against libbusybox.so.N.N.N.
- Say 'N' if in doubt.
+ You need to have a working dynamic linker.
config FEATURE_SHARED_BUSYBOX
- bool "Use shared libbusybox for busybox"
- default y if BUILD_LIBBUSYBOX
+ bool "Produce additional busybox binary linked against libbusybox"
+ default y
depends on !STATIC && BUILD_LIBBUSYBOX
help
- Use libbusybox.so also for busybox itself.
- You need to have a working dynamic linker to use this variant.
+ Build busybox, dynamically linked against libbusybox.so.N.N.N.
+
+ You need to have a working dynamic linker.
+
+### config BUILD_AT_ONCE
+### bool "Compile all sources at once"
+### default n
+### help
+### Normally each source-file is compiled with one invocation of
+### the compiler.
+### If you set this option, all sources are compiled at once.
+### This gives the compiler more opportunities to optimize which can
+### result in smaller and/or faster binaries.
+###
+### Setting this option will consume alot of memory, e.g. if you
+### enable all applets with all features, gcc uses more than 300MB
+### RAM during compilation of busybox.
+###
+### This option is most likely only beneficial for newer compilers
+### such as gcc-4.1 and above.
+###
+### Say 'N' unless you know what you are doing.
config LFS
bool "Build with Large File Support (for accessing files > 2 GB)"
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 BUILD_AT_ONCE
- bool "Compile all sources at once"
- default n
+config CROSS_COMPILER_PREFIX
+ string "Cross Compiler prefix"
+ default ""
help
- Normally each source-file is compiled with one invocation of
- the compiler.
- If you set this option, all sources are compiled at once.
- This gives the compiler more opportunities to optimize which can
- result in smaller and/or faster binaries.
-
- Setting this option will consume alot of memory, e.g. if you
- enable all applets with all features, gcc uses more than 300MB
- RAM during compilation of busybox.
-
- This option is most likely only beneficial for newer compilers
- such as gcc-4.1 and above.
-
- Say 'N' unless you know what you are doing.
+ If you want to build BusyBox with a cross compiler, then you
+ will need to set this to the cross-compiler prefix, for example,
+ "i386-uclibc-". Note that CROSS_COMPILE environment variable
+ or "make CROSS_COMPILE=xxx ..." will override this selection.
+ For native build leave it empty.
endmenu
in a much bigger executable that more closely matches the source
code.
+config WERROR
+ bool "Abort compilation on any warning"
+ default n
+ help
+ Selecting this will add -Werror to gcc command line.
+
+ Most people should answer N.
+
choice
prompt "Additional debugging library"
default NO_DEBUG_LIB
- depends on DEBUG
help
Using an additional debugging library will make BusyBox become
considerable larger and will cause it to run more slowly. You
endchoice
-config DEBUG_YANK_SUSv2
- bool "Disable obsolete features removed before SUSv3?"
+config INCLUDE_SUSv2
+ bool "Enable obsolete features removed before SUSv3?"
default y
help
- This option will disable backwards compatibility with SuSv2,
+ This option will enable backwards compatibility with SuSv2,
specifically, old-style numeric options ('command -1 <file>')
- will not be supported in head, tail, and fold. (Note: should
- yank from renice too.)
+ will be supported in head, tail, and fold. (Note: should
+ affect renice too.)
endmenu
that you really want this behaviour.
choice
- prompt "Applets links"
- default INSTALL_APPLET_SYMLINKS
- help
- Choose how you install applets links.
+ prompt "Applets links"
+ default INSTALL_APPLET_SYMLINKS
+ help
+ Choose how you install applets links.
config INSTALL_APPLET_SYMLINKS
- bool "as soft-links"
- help
- Install applets as soft-links to the busybox binary. This needs some
- free inodes on the filesystem, but might help with filesystem
- generators that can't cope with hard-links.
+ bool "as soft-links"
+ help
+ Install applets as soft-links to the busybox binary. This needs some
+ free inodes on the filesystem, but might help with filesystem
+ generators that can't cope with hard-links.
config INSTALL_APPLET_HARDLINKS
- bool "as hard-links"
- help
- Install applets as hard-links to the busybox binary. This might count
- on a filesystem with few inodes.
+ bool "as hard-links"
+ help
+ Install applets as hard-links to the busybox binary. This might count
+ on a filesystem with few inodes.
+
+config INSTALL_APPLET_SCRIPT_WRAPPERS
+ bool "as script wrappers"
+ help
+ Install applets as script wrappers that call the busybox binary.
config INSTALL_APPLET_DONT
- bool
- prompt "not installed"
- depends on FEATURE_INSTALLER || FEATURE_SH_STANDALONE_SHELL
- help
- Do not install applets links. Usefull when using the -install feature
- or a standalone shell for rescue pruposes.
+ bool "not installed"
+ depends on FEATURE_INSTALLER || FEATURE_SH_STANDALONE || FEATURE_PREFER_APPLETS
+ help
+ Do not install applet links. Useful when using the -install feature
+ or a standalone shell for rescue purposes.
+
+endchoice
+
+choice
+ prompt "/bin/sh applet link"
+ default INSTALL_SH_APPLET_SYMLINK
+ depends on INSTALL_APPLET_SCRIPT_WRAPPERS
+ help
+ Choose how you install /bin/sh applet link.
+
+config INSTALL_SH_APPLET_SYMLINK
+ bool "as soft-link"
+ help
+ Install /bin/sh applet as soft-link to the busybox binary.
+
+config INSTALL_SH_APPLET_HARDLINK
+ bool "as hard-link"
+ help
+ Install /bin/sh applet as hard-link to the busybox binary.
+
+config INSTALL_SH_APPLET_SCRIPT_WRAPPER
+ bool "as script wrapper"
+ help
+ Install /bin/sh applet as script wrapper that call the busybox binary.
endchoice
source shell/Config.in
source sysklogd/Config.in
source runit/Config.in
+source selinux/Config.in
+source printutils/Config.in
projects / oweals / busybox.git / blobdiff