#
-config BUSYBOX_HAVE_DOT_CONFIG
+config BUSYBOX_CONFIG_HAVE_DOT_CONFIG
bool
default y
+menu "Busybox Settings"
+
menu "General Configuration"
+config BUSYBOX_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.
+
+config BUSYBOX_CONFIG_EXTRA_COMPAT
+ bool "Provide compatible behavior for rare corner cases (bigger code)"
+ default n
+ help
+ This option makes grep, sed etc handle rare corner cases
+ (embedded NUL bytes and such). This makes code bigger and uses
+ some GNU extensions in libc. You probably only need this option
+ if you plan to run busybox on desktop.
+
+config BUSYBOX_CONFIG_INCLUDE_SUSv2
+ bool "Enable obsolete features removed before SUSv3"
+ default y
+ help
+ This option will enable backwards compatibility with SuSv2,
+ specifically, old-style numeric options ('command -1 <file>')
+ will be supported in head, tail, and fold. (Note: should
+ affect renice too.)
+
+config BUSYBOX_CONFIG_USE_PORTABLE_CODE
+ bool "Avoid using GCC-specific code constructs"
+ default n
+ help
+ Use this option if you are trying to compile busybox with
+ compiler other than gcc.
+ If you do use gcc, this option may needlessly increase code size.
+
+config BUSYBOX_CONFIG_PLATFORM_LINUX
+ bool "Enable Linux-specific applets and features"
+ default y
+ help
+ For the most part, busybox requires only POSIX compatibility
+ from the target system, but some applets and features use
+ Linux-specific interfaces.
+
+ Answering 'N' here will disable such applets and hide the
+ corresponding configuration options.
+
choice
prompt "Buffer allocation policy"
default BUSYBOX_CONFIG_FEATURE_BUFFERS_GO_ON_STACK
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.
+ 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
endchoice
+config BUSYBOX_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 BUSYBOX_CONFIG_FEATURE_VERBOSE_USAGE
bool "Show verbose applet usage messages"
default y
+ depends on BUSYBOX_CONFIG_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
+ 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 BUSYBOX_CONFIG_FEATURE_COMPRESS_USAGE
+ bool "Store applet usage messages in compressed form"
+ default y
+ depends on BUSYBOX_CONFIG_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 BUSYBOX_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
+ 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 BUSYBOX_CONFIG_INSTALL_NO_USR
+ bool "Don't use /usr"
+ default n
+ help
+ Disable use of /usr. busybox --install and "make install"
+ will install applets only to /bin and /sbin,
+ never to /usr/bin or /usr/sbin.
config BUSYBOX_CONFIG_LOCALE_SUPPORT
bool "Enable locale support (system needs locale for this to work)"
Enable this if your system has locale support and you would like
busybox to support locale settings.
-config BUSYBOX_CONFIG_FEATURE_DEVFS
- bool "Support for devfs"
+config BUSYBOX_CONFIG_UNICODE_SUPPORT
+ bool "Support Unicode"
+ 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.
+
+config BUSYBOX_CONFIG_UNICODE_USING_LOCALE
+ bool "Use libc routines for Unicode (else uses internal ones)"
+ default n
+ depends on BUSYBOX_CONFIG_UNICODE_SUPPORT && BUSYBOX_CONFIG_LOCALE_SUPPORT
+ help
+ With this option on, Unicode support is implemented using libc
+ routines. Otherwise, internal implementation is used.
+ Internal implementation is smaller.
+
+config BUSYBOX_CONFIG_FEATURE_CHECK_UNICODE_IN_ENV
+ bool "Check $LANG environment variable"
+ default n
+ depends on BUSYBOX_CONFIG_UNICODE_SUPPORT && !BUSYBOX_CONFIG_UNICODE_USING_LOCALE
+ help
+ With this option on, Unicode support is activated
+ only if LANG variable has the value of the form "xxxx.utf8"
+
+ Otherwise, Unicode support will be always enabled and active.
+
+config BUSYBOX_CONFIG_SUBST_WCHAR
+ int "Character code to substitute unprintable characters with"
+ depends on BUSYBOX_CONFIG_UNICODE_SUPPORT
+ default 63
+ help
+ Typical values are 63 for '?' (works with any output device),
+ 30 for ASCII substitute control code,
+ 65533 (0xfffd) for Unicode replacement character.
+
+config BUSYBOX_CONFIG_LAST_SUPPORTED_WCHAR
+ int "Range of supported Unicode characters"
+ depends on BUSYBOX_CONFIG_UNICODE_SUPPORT
+ default 767
+ help
+ Any character with Unicode value bigger than this is assumed
+ to be non-printable on output device. Many applets replace
+ such chars with substitution character.
+
+ The idea is that many valid printable Unicode chars are
+ nevertheless are not displayed correctly. Think about
+ combining charachers, double-wide hieroglyphs, obscure
+ characters in dozens of ancient scripts...
+ Many terminals, terminal emulators, xterms etc will fail
+ to handle them correctly. Choose the smallest value
+ which suits your needs.
+
+ Typical values are:
+ 126 - ASCII only
+ 767 (0x2ff) - there are no combining chars in [0..767] range
+ (the range includes Latin 1, Latin Ext. A and B),
+ code is ~700 bytes smaller for this case.
+ 4351 (0x10ff) - there are no double-wide chars in [0..4351] range,
+ code is ~300 bytes smaller for this case.
+ 12799 (0x31ff) - nearly all non-ideographic characters are
+ available in [0..12799] range, including
+ East Asian scripts like katakana, hiragana, hangul,
+ bopomofo...
+ 0 - off, any valid printable Unicode character will be printed.
+
+config BUSYBOX_CONFIG_UNICODE_COMBINING_WCHARS
+ bool "Allow zero-width Unicode characters on output"
+ default n
+ depends on BUSYBOX_CONFIG_UNICODE_SUPPORT
+ help
+ With this option off, any Unicode char with width of 0
+ is substituted on output.
+
+config BUSYBOX_CONFIG_UNICODE_WIDE_WCHARS
+ bool "Allow wide Unicode characters on output"
+ default n
+ depends on BUSYBOX_CONFIG_UNICODE_SUPPORT
+ help
+ With this option off, any Unicode char with width > 1
+ is substituted on output.
+
+config BUSYBOX_CONFIG_UNICODE_BIDI_SUPPORT
+ bool "Bidirectional character-aware line input"
+ default n
+ depends on BUSYBOX_CONFIG_UNICODE_SUPPORT && !BUSYBOX_CONFIG_UNICODE_USING_LOCALE
+ help
+ With this option on, right-to-left Unicode characters
+ are treated differently on input (e.g. cursor movement).
+
+config BUSYBOX_CONFIG_UNICODE_NEUTRAL_TABLE
+ bool "In bidi input, support non-ASCII neutral chars too"
+ default n
+ depends on BUSYBOX_CONFIG_UNICODE_BIDI_SUPPORT
+ help
+ In most cases it's enough to treat only ASCII non-letters
+ (i.e. punctuation, numbers and space) as characters
+ with neutral directionality.
+ With this option on, more extensive (and bigger) table
+ of neutral chars will be used.
+
+config BUSYBOX_CONFIG_UNICODE_PRESERVE_BROKEN
+ bool "Make it possible to enter sequences of chars which are not Unicode"
+ default n
+ depends on BUSYBOX_CONFIG_UNICODE_SUPPORT
+ help
+ With this option on, on line-editing input (such as used by shells)
+ invalid UTF-8 bytes are not substituted with the selected
+ substitution character.
+ For example, this means that entering 'l', 's', ' ', 0xff, [Enter]
+ at shell prompt will list file named 0xff (single char name
+ with char value 255), not file named '?'.
+
+config BUSYBOX_CONFIG_LONG_OPTS
+ bool "Support for --long-options"
default y
help
- Enable if you want BusyBox to work with devfs.
+ 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 BUSYBOX_CONFIG_FEATURE_DEVPTS
bool "Use the devpts filesystem for Unix98 PTYs"
- default y if BUSYBOX_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
+ 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 BUSYBOX_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
+ 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 BUSYBOX_CONFIG_FEATURE_UTMP
+ bool "Support utmp file"
+ default n
+ help
+ The file /var/run/utmp is used to track who is currently logged in.
+ With this option on, certain applets (getty, login, telnetd etc)
+ will create and delete entries there.
+ "who" applet requires this option.
+
+config BUSYBOX_CONFIG_FEATURE_WTMP
+ bool "Support wtmp file"
+ default n
+ depends on BUSYBOX_CONFIG_FEATURE_UTMP
+ help
+ The file /var/run/wtmp is used to track when users have logged into
+ and logged out of the system.
+ With this option on, certain applets (getty, login, telnetd etc)
+ will append new entries there.
+ "last" applet requires this option.
+
+config BUSYBOX_CONFIG_FEATURE_PIDFILE
+ bool "Support writing pidfiles"
+ default y
+ help
+ This option makes some applets (e.g. crond, syslogd, inetd) write
+ a pidfile in /var/run. Some applications rely on them.
+
config BUSYBOX_CONFIG_FEATURE_SUID
bool "Support for SUID/SGID handling"
default y
help
- Support SUID and SGID binaries.
+ With this option you can install the busybox binary belonging
+ to root with the suid bit set, enabling some applets to perform
+ root-level operations even when run by ordinary users
+ (for example, mounting of user mounts in fstab needs this).
+
+ Busybox will automatically drop priviledges for applets
+ that don't need root access.
+
+ If you are 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 which require root rights (need suid bit or
+ to be run by root) and will refuse to execute otherwise:
+ crontab, login, passwd, su, vlock, wall.
+
+ The applets which will use root rights if they have them
+ (via suid bit, or because run by root), but would try to work
+ without root right nevertheless:
+ findfs, ping[6], traceroute[6], mount.
+
+ Note that if you DONT select this option, but DO make busybox
+ suid root, ALL applets will run under root, which is a huge
+ security hole (think "cp /some/file /etc/passwd").
config BUSYBOX_CONFIG_FEATURE_SUID_CONFIG
bool "Runtime SUID/SGID configuration via /etc/busybox.conf"
- default n if BUSYBOX_CONFIG_FEATURE_SUID
+ default n
depends on BUSYBOX_CONFIG_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-] [USER.GROUP]
+
+ s: USER or GROUP is allowed to execute APPLET.
+ APPLET will run under USER or GROUP
+ (reagardless of who's running it).
+ S: USER or GROUP is NOT allowed to execute APPLET.
+ APPLET will run under USER or GROUP.
+ This option is not very sensical.
+ x: USER/GROUP/others are allowed to execute APPLET.
+ No UID/GID change will be done when it is run.
+ -: USER/GROUP/others are not allowed to execute APPLET.
- <applet> = [Ssx-][Ssx-][x-] (<username>|<uid>).(<groupname>|<gid>)
-
An example might help:
[SUID]
- su = ssx root.0 # applet su can be run by anyone and runs with euid=0/egid=0
+ su = ssx root.0 # applet su can be run by anyone and runs with
+ # euid=0/egid=0
su = ssx # exactly the same
- mount = sx- root.disk # applet mount can be run by root and members of group disk
- # and runs with euid=0
+ mount = sx- root.disk # applet mount can be run by root and members
+ # of group disk (but not anyone else)
+ # and runs with euid=0 (egid is not changed)
cp = --- # disable applet cp for everyone
+ 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)
+ 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)
+
Robert 'sandman' Griebl has more information here:
<url: http://www.softforge.de/bb/suid.html >.
default n
depends on BUSYBOX_CONFIG_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.
+ /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 BUSYBOX_CONFIG_SELINUX
bool "Support NSA Security Enhanced Linux"
default n
+ select BUSYBOX_CONFIG_PLATFORM_LINUX
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_CONFIG_FEATURE_PREFER_APPLETS
+ bool "exec prefers applets"
+ default y
+ 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_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.
+
+# These are auto-selected by other options
+
+config BUSYBOX_CONFIG_FEATURE_SYSLOG
+ bool #No description makes it a hidden option
+ default y
+ #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 BUSYBOX_CONFIG_FEATURE_HAVE_RPC
+ bool #No description makes it a hidden option
+ 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 BUSYBOX_CONFIG_LFS
- bool
- default y
- select BUSYBOX_FDISK_SUPPORT_LARGE_DISKS
+config BUSYBOX_CONFIG_PIE
+ bool "Build BusyBox as a position independent executable"
+ default n
+ depends on !BUSYBOX_CONFIG_STATIC
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'.
+ Hardened code option. PIE binaries are loaded at a different
+ address at each invocation. This has some overhead,
+ particularly on x86-32 which is short on registers.
-config BUSYBOX_USING_CROSS_COMPILER
- bool
- default y
- help
- Do you want to build BusyBox with a Cross Compiler? If so,
- then enable this option. Otherwise leave it set to 'N'.
+ Most people will leave this set to 'N'.
-config BUSYBOX_CROSS_COMPILER_PREFIX
- string
- default "mipsel-uclibc-"
- depends on BUSYBOX_USING_CROSS_COMPILER
+config BUSYBOX_CONFIG_NOMMU
+ bool "Force NOMMU build"
+ 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.
+ 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 BUSYBOX_EXTRA_CFLAGS_OPTIONS
- string
- default "-Os "
+# PIE can be made to work with BUILD_LIBBUSYBOX, but currently
+# build system does not support that
+config BUSYBOX_CONFIG_BUILD_LIBBUSYBOX
+ bool "Build shared libbusybox"
+ default n
+ depends on !BUSYBOX_CONFIG_FEATURE_PREFER_APPLETS && !BUSYBOX_CONFIG_PIE && !BUSYBOX_CONFIG_STATIC
+ help
+ 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 BUSYBOX_CONFIG_FEATURE_INDIVIDUAL
+ bool "Produce a binary for each applet, linked against libbusybox"
+ default n
+ depends on BUSYBOX_CONFIG_BUILD_LIBBUSYBOX
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.
+ 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.
-endmenu
+ If your CPU architecture allows for sharing text/rodata,
+ having single binary is more optimal.
-menu 'Installation Options'
+ Each applet will be a tiny program, dynamically linked
+ against libbusybox.so.N.N.N.
-config BUSYBOX_CONFIG_INSTALL_NO_USR
- bool "Don't use /usr"
+ You need to have a working dynamic linker.
+
+config BUSYBOX_CONFIG_FEATURE_SHARED_BUSYBOX
+ bool "Produce additional busybox binary linked against libbusybox"
default n
+ depends on BUSYBOX_CONFIG_BUILD_LIBBUSYBOX
help
- Disable use of /usr. Don't activate this option if you don't know
- that you really want this behaviour.
+ 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 BUSYBOX_PREFIX
- string
- default "./_install"
+config BUSYBOX_CONFIG_LFS
+ bool
+ default y
help
- Define your directory to install BusyBox files/subdirs in.
+ 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 BUSYBOX_CONFIG_CROSS_COMPILER_PREFIX
+ string "Cross Compiler prefix"
+ default ""
+ 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,
+ "i386-uclibc-".
+ Note that CROSS_COMPILE environment variable or
+ "make CROSS_COMPILE=xxx ..." will override this selection.
-endmenu
+ Native builds leave this empty.
-source package/busybox/config/archival/Config.in
-source package/busybox/config/coreutils/Config.in
-source package/busybox/config/console-tools/Config.in
-source package/busybox/config/debianutils/Config.in
-source package/busybox/config/editors/Config.in
-source package/busybox/config/findutils/Config.in
-source package/busybox/config/init/Config.in
-source package/busybox/config/loginutils/Config.in
-source package/busybox/config/miscutils/Config.in
-source package/busybox/config/modutils/Config.in
-source package/busybox/config/networking/Config.in
-source package/busybox/config/procps/Config.in
-source package/busybox/config/shell/Config.in
-source package/busybox/config/sysklogd/Config.in
-source package/busybox/config/util-linux/Config.in
+config BUSYBOX_CONFIG_EXTRA_CFLAGS
+ string "Additional CFLAGS"
+ default ""
+ help
+ Additional CFLAGS to pass to the compiler verbatim.
+
+endmenu
menu 'Debugging Options'
config BUSYBOX_CONFIG_DEBUG
- bool "Build BusyBox with Debugging symbols"
+ bool "Build BusyBox with extra 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.
+ 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 BUSYBOX_CONFIG_DEBUG_PESSIMIZE
+ bool "Disable compiler optimizations"
+ default n
+ depends on BUSYBOX_CONFIG_DEBUG
+ help
+ 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 BUSYBOX_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 BUSYBOX_CONFIG_NO_DEBUG_LIB
- depends on BUSYBOX_CONFIG_DEBUG
help
Using an additional debugging library will make BusyBox become
- considerable larger and will cause it to run more slowly. You
+ 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
+ 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
+ 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
+ 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
+ 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.
endchoice
+endmenu
+
+menu 'Installation Options ("make install" behavior)'
+
+choice
+ prompt "What kind of applet links to install"
+ default BUSYBOX_CONFIG_INSTALL_APPLET_SYMLINKS
+ help
+ Choose what kind of links to applets are created by "make install".
+
+config BUSYBOX_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 BUSYBOX_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 BUSYBOX_CONFIG_INSTALL_APPLET_SCRIPT_WRAPPERS
+ bool "as script wrappers"
+ help
+ Install applets as script wrappers that call the busybox binary.
+
+config BUSYBOX_CONFIG_INSTALL_APPLET_DONT
+ bool "not installed"
+ help
+ Do not install applet links. Useful when you plan to use
+ busybox --install for installing links, or plan to use
+ a standalone shell and thus don't need applet links.
+
+endchoice
+
+choice
+ prompt "/bin/sh applet link"
+ default BUSYBOX_CONFIG_INSTALL_SH_APPLET_SYMLINK
+ depends on BUSYBOX_CONFIG_INSTALL_APPLET_SCRIPT_WRAPPERS
+ help
+ Choose how you install /bin/sh applet link.
+
+config BUSYBOX_CONFIG_INSTALL_SH_APPLET_SYMLINK
+ bool "as soft-link"
+ help
+ Install /bin/sh applet as soft-link to the busybox binary.
+
+config BUSYBOX_CONFIG_INSTALL_SH_APPLET_HARDLINK
+ bool "as hard-link"
+ help
+ Install /bin/sh applet as hard-link to the busybox binary.
+
+config BUSYBOX_CONFIG_INSTALL_SH_APPLET_SCRIPT_WRAPPER
+ bool "as script wrapper"
+ help
+ Install /bin/sh applet as script wrapper that calls
+ the busybox binary.
+
+endchoice
+
+config BUSYBOX_CONFIG_PREFIX
+ string "BusyBox installation prefix"
+ default "./_install"
+ help
+ Define your directory to install BusyBox files/subdirs in.
+
+endmenu
+
+source package/busybox/config/libbb/Config.in
endmenu
+comment "Applets"
+
+source package/busybox/config/archival/Config.in
+source package/busybox/config/coreutils/Config.in
+source package/busybox/config/console-tools/Config.in
+source package/busybox/config/debianutils/Config.in
+source package/busybox/config/editors/Config.in
+source package/busybox/config/findutils/Config.in
+source package/busybox/config/init/Config.in
+source package/busybox/config/loginutils/Config.in
+source package/busybox/config/e2fsprogs/Config.in
+source package/busybox/config/modutils/Config.in
+source package/busybox/config/util-linux/Config.in
+source package/busybox/config/miscutils/Config.in
+source package/busybox/config/networking/Config.in
+source package/busybox/config/printutils/Config.in
+source package/busybox/config/mailutils/Config.in
+source package/busybox/config/procps/Config.in
+source package/busybox/config/runit/Config.in
+source package/busybox/config/selinux/Config.in
+source package/busybox/config/shell/Config.in
+source package/busybox/config/sysklogd/Config.in
projects / openwrt.git / blobdiff