bool
default y
+menu "Busybox Settings"
+
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
+ help
+ Enable options and features which are not essential.
+ Select this only if you plan to use busybox on full-blown
+ desktop machine with common Linux distro, not on an embedded box.
+
choice
prompt "Buffer allocation policy"
- default CONFIG_FEATURE_BUFFERS_USE_MALLOC
+ 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.
behavior was the only one available for BusyBox versions 0.48 and
earlier.
-config CONFIG_FEATURE_BUFFERS_USE_MALLOC
+config FEATURE_BUFFERS_USE_MALLOC
bool "Allocate with Malloc"
-config CONFIG_FEATURE_BUFFERS_GO_ON_STACK
+config FEATURE_BUFFERS_GO_ON_STACK
bool "Allocate on the Stack"
-config CONFIG_FEATURE_BUFFERS_GO_IN_BSS
+config FEATURE_BUFFERS_GO_IN_BSS
bool "Allocate in the .bss section"
endchoice
-config CONFIG_FEATURE_VERBOSE_USAGE
+config SHOW_USAGE
+ bool "Show terse applet usage messages"
+ default y
+ help
+ All BusyBox applets will show help messages when invoked with
+ wrong arguments. You can turn off printing these terse usage
+ messages if you say no here.
+ This will save you up to 7k.
+
+config FEATURE_VERBOSE_USAGE
bool "Show verbose applet usage messages"
default n
+ select SHOW_USAGE
help
All BusyBox applets will show more verbose help messages when
busybox is invoked with --help. This will add a lot 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
+config FEATURE_COMPRESS_USAGE
+ bool "Store applet usage messages in compressed form"
+ default y
+ depends on SHOW_USAGE
+ help
+ Store usage messages in compressed form, uncompress them on-the-fly
+ when <applet> --help is called.
+
+ If you have a really tiny busybox with few applets enabled (and
+ bunzip2 isn't one of them), the overhead of the decompressor might
+ be noticeable. Also, if you run executables directly from ROM
+ and have very little memory, this might not be a win. Otherwise,
+ you probably want this.
+
+config FEATURE_INSTALLER
bool "Support --install [-s] to install applet links at runtime"
default n
help
applets that are compiled into busybox. This feature requires the
/proc filesystem.
-config CONFIG_LOCALE_SUPPORT
+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 GETOPT_LONG
+ bool
+ 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.
-config CONFIG_FEATURE_DEVPTS
+config FEATURE_DEVPTS
bool "Use the devpts filesystem for Unix98 PTYs"
- default y if CONFIG_FEATURE_DEVFS
+ default y
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.
+ devpts mounted.
-config CONFIG_FEATURE_CLEAN_UP
+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 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
+ As a size optimization, busybox normally exits without explicitly
+ freeing dynamically allocated memory or closing files. This saves
+ space since the OS will clean up for us, but it can confuse debuggers
+ like valgrind, which report tons of memory and resource leaks.
+
+ Don't enable this unless you have a really good reason to clean
things up manually.
-config CONFIG_FEATURE_SUID
+config FEATURE_SUID
bool "Support for SUID/SGID handling"
default n
help
- Support SUID and SGID binaries.
+ With this option you can install the busybox binary belonging
+ to root with the suid bit set, and it'll and it'll automatically drop
+ priviledges for applets that don't need root access.
+
+ If you're really paranoid and don't want to do this, build two
+ busybox binaries with different applets in them (and the appropriate
+ symlinks pointing to each binary), and only set the suid bit on the
+ one that needs it. The applets currently marked to need the suid bit
+ 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 CONFIG_FEATURE_SUID_CONFIG
+config FEATURE_SUID_CONFIG
bool "Runtime SUID/SGID configuration via /etc/busybox.conf"
- default n if CONFIG_FEATURE_SUID
- depends on CONFIG_FEATURE_SUID
+ default n if FEATURE_SUID
+ depends on FEATURE_SUID
help
- Allow the SUID / SGID state of an applet to be determined runtime by
- checking /etc/busybox.conf. The format of this file is as follows:
+ Allow the SUID / SGID state of an applet to be determined at runtime
+ by checking /etc/busybox.conf. (This is sort of a poor man's sudo.)
+ The format of this file is as follows:
<applet> = [Ssx-][Ssx-][x-] (<username>|<uid>).(<groupname>|<gid>)
Robert 'sandman' Griebl has more information here:
<url: http://www.softforge.de/bb/suid.html >.
-config CONFIG_FEATURE_SUID_CONFIG_QUIET
+config FEATURE_SUID_CONFIG_QUIET
bool "Suppress warning message if /etc/busybox.conf is not readable"
- default n
- depends on CONFIG_FEATURE_SUID_CONFIG
+ default y
+ depends on FEATURE_SUID_CONFIG
help
/etc/busybox.conf should be readable by the user needing the SUID, check
this option to avoid users to be notified about missing permissions.
-config CONFIG_SELINUX
+config SELINUX
bool "Support NSA Security Enhanced Linux"
default n
help
- Enable support for SE Linux in applets ls, ps, and id. Also provide
- the option of compiling in SE Linux applets.
+ Enable support for SELinux in applets ls, ps, and id. Also provide
+ the option of compiling in SELinux applets.
- If you do not have a complete SE Linux Full Userland installed, this
- stuff will not compile. Go visit
+ If you do not have a complete SELinux userland installed, this stuff
+ will not compile. Go visit
http://www.nsa.gov/selinux/index.html
- to download the necessary stuff to allow busybox to compile with this
- option enabled.
+ to download the necessary stuff to allow busybox to compile with
+ this option enabled. Specifially, libselinux 1.28 or better is
+ directly required by busybox. If the installation is located in a
+ non-standard directory, provide it by invoking make as follows:
+ CFLAGS=-I<libselinux-include-path> \
+ LDFLAGS=-L<libselinux-lib-path> \
+ make
Most people will leave this set to 'N'.
+config BUSYBOX_EXEC_PATH
+ string "Path to BusyBox executable"
+ default "/proc/self/exe"
+ help
+ When Busybox applets need to run other busybox applets, BusyBox
+ sometimes needs to exec() itself. When the /proc filesystem is
+ mounted, /proc/self/exe always points to the currently running
+ executable. If you haven't got /proc, set this to wherever you
+ want to run BusyBox from.
+
endmenu
menu 'Build Options'
-config CONFIG_STATIC
+config STATIC
bool "Build BusyBox as a static binary (no shared libs)"
default n
help
Most people will leave this set to 'N'.
-config CONFIG_LFS
+config BUILD_LIBBUSYBOX
+ bool "Build shared libbusybox"
+ default n
+ help
+ Build a shared library libbusybox.so which contains all
+ libraries used inside busybox.
+
+ 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 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_SHARED_BUSYBOX
+ bool "Use shared libbusybox for busybox"
+ default y if BUILD_LIBBUSYBOX
+ 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.
+
+config LFS
bool "Build with Large File Support (for accessing files > 2 GB)"
default n
select FDISK_SUPPORT_LARGE_DISKS
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?"
+config BUILD_AT_ONCE
+ bool "Compile all sources at once"
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'.
+ 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.
+
+endmenu
+
+menu 'Debugging Options'
-config CROSS_COMPILER_PREFIX
- string "Cross Compiler prefix"
- default "/usr/i386-linux-uclibc/bin/i386-uclibc-"
- depends on USING_CROSS_COMPILER
+config DEBUG
+ bool "Build BusyBox with extra Debugging symbols"
+ default n
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 ""
+ Say Y here if you wish 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.
+
+ Most people should answer N.
+
+config DEBUG_PESSIMIZE
+ bool "Disable compiler optimizations."
+ default n
+ depends on DEBUG
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.
+ The compiler's optimization of source code can eliminate and reorder
+ code, resulting in an executable that's hard to understand when
+ stepping through it with a debugger. This switches it off, resulting
+ in a much bigger executable that more closely matches the source
+ code.
-config CONFIG_FEATURE_SUSv2
- bool "Enable features that are in SuSv2 but not SuSv3?"
- default y
+choice
+ prompt "Additional debugging library"
+ default NO_DEBUG_LIB
+ depends on DEBUG
help
- This option will enable backwards compatability with SuSv2,
- specifically, numeric options such as 'head -1 <file>' will be
- supported.
+ Using an additional debugging library will make BusyBox become
+ considerable larger and will cause it to run more slowly. You
+ should always leave this option disabled for production use.
-config CONFIG_FEATURE_SUSv2_OBSOLETE
- bool "Enable features that are obsolete in SuSv2"
- depends on CONFIG_FEATURE_SUSv2
+ dmalloc support:
+ ----------------
+ 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
+
+ Electric-fence support:
+ -----------------------
+ This enables compiling with Electric-fence support. Electric
+ fence is another very useful malloc debugging library which uses
+ your computer's 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.
+
+
+config NO_DEBUG_LIB
+ bool "None"
+
+config DMALLOC
+ bool "Dmalloc"
+
+config EFENCE
+ bool "Electric-fence"
+
+endchoice
+
+config DEBUG_YANK_SUSv2
+ bool "Disable obsolete features removed before SUSv3?"
default y
help
- Disables support for numeric arguments in fold.
+ This option will disable 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.)
endmenu
menu 'Installation Options'
-config CONFIG_INSTALL_NO_USR
+config INSTALL_NO_USR
bool "Don't use /usr"
default n
help
choice
prompt "Applets links"
- default CONFIG_INSTALL_APPLET_SYMLINKS
+ default INSTALL_APPLET_SYMLINKS
help
Choose how you install applets links.
-config CONFIG_INSTALL_APPLET_SYMLINKS
+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.
-config CONFIG_INSTALL_APPLET_HARDLINKS
+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.
-config CONFIG_INSTALL_APPLET_DONT
+config INSTALL_APPLET_DONT
bool
prompt "not installed"
- depends on CONFIG_FEATURE_INSTALLER || CONFIG_FEATURE_SH_STANDALONE_SHELL
+ 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.
help
Define your directory to install BusyBox files/subdirs in.
+endmenu
+source libbb/Config.in
endmenu
+comment "Applets"
+
source archival/Config.in
source coreutils/Config.in
source console-tools/Config.in
source debianutils/Config.in
-source e2fsprogs/Config.in
source editors/Config.in
source findutils/Config.in
source init/Config.in
source loginutils/Config.in
-source miscutils/Config.in
+source e2fsprogs/Config.in
source modutils/Config.in
+source util-linux/Config.in
+source miscutils/Config.in
source networking/Config.in
source procps/Config.in
source shell/Config.in
source sysklogd/Config.in
-source util-linux/Config.in
-
-menu 'Debugging Options'
-
-config CONFIG_DEBUG
- 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.
-
- Most people should answer N.
-
-choice
- prompt "Additional debugging library"
- default CONFIG_NO_DEBUG_LIB
- depends on CONFIG_DEBUG
- help
- Using an additional debugging library will make BusyBox become
- considerable larger and will cause it to run more slowly. You
- should always leave this option disabled for production use.
-
- dmalloc support:
- ----------------
- 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
-
- Electric-fence support:
- -----------------------
- This enables compiling with Electric-fence support. Electric
- fence is another very useful malloc debugging library which uses
- your computer's 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.
-
-
-config CONFIG_NO_DEBUG_LIB
- bool "None"
-
-config CONFIG_DMALLOC
- bool "Dmalloc"
-
-config CONFIG_EFENCE
- bool "Electric-fence"
-
-endchoice
-
-
-endmenu
+source runit/Config.in
projects / oweals / busybox.git / blobdiff