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Diffstat (limited to 'release/src/router/busybox/Config.in')
| -rw-r--r-- | release/src/router/busybox/Config.in | 610 |
1 files changed, 610 insertions, 0 deletions
diff --git a/release/src/router/busybox/Config.in b/release/src/router/busybox/Config.in new file mode 100644 index 00000000..fff6d83d --- /dev/null +++ b/release/src/router/busybox/Config.in @@ -0,0 +1,610 @@ +# +# For a description of the syntax of this configuration file, +# see scripts/kbuild/config-language.txt. +# + +mainmenu "BusyBox Configuration" + +config HAVE_DOT_CONFIG + bool + default y + +menu "Busybox Settings" + +menu "General Configuration" + +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 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 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 + 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 FEATURE_BUFFERS_USE_MALLOC + bool "Allocate with Malloc" + +config FEATURE_BUFFERS_GO_ON_STACK + bool "Allocate on the Stack" + +config FEATURE_BUFFERS_GO_IN_BSS + bool "Allocate in the .bss section" + +endchoice + +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 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 + 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. + +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 GETOPT_LONG + bool "Support for --long-options" + default y + 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" + 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 mounted. + +config FEATURE_CLEAN_UP + bool "Clean up all memory before exiting (usually not needed)" + default n + help + 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 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 + help + With this option you can install the busybox binary belonging + to root with the suid bit set, and it 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 currently marked to need the suid bit + are: + + crontab, dnsd, findfs, ipcrm, ipcs, login, passwd, ping, su, + traceroute, vlock. + +config FEATURE_SUID_CONFIG + bool "Runtime SUID/SGID configuration via /etc/busybox.conf" + default n if FEATURE_SUID + depends on FEATURE_SUID + help + 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>) + + 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 # exactly the same + + mount = sx- root.disk # applet mount can be run by root and members + # of group disk and runs with euid=0 + + 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 >. + +config FEATURE_SUID_CONFIG_QUIET + bool "Suppress warning message if /etc/busybox.conf is not readable" + 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 SELINUX + bool "Support NSA Security Enhanced Linux" + default n + help + 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 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. 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 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" + 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 FEATURE_SYSLOG + bool #No description makes it a hidden option + 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 #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' + +config STATIC + 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 can cause BusyBox to be considerably 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 PIE + bool "Build BusyBox as a position independent executable" + default n + depends on !STATIC + help + (TODO: what is it and why/when is it useful?) + Most people will leave this set to 'N'. + +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'. + +# PIE can be made to work with BUILD_LIBBUSYBOX, but currently +# build system does not support that +config BUILD_LIBBUSYBOX + bool "Build shared libbusybox" + default n + depends on !FEATURE_PREFER_APPLETS && !PIE && !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 FEATURE_INDIVIDUAL + bool "Produce a binary for each applet, linked against libbusybox" + default y + depends on 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. + + If your CPU architecture allows for sharing text/rodata, + having single binary is more optimal. + + Each applet will be a tiny program, dynamically linked + against libbusybox.so.N.N.N. + + You need to have a working dynamic linker. + +config FEATURE_SHARED_BUSYBOX + bool "Produce additional busybox binary linked against libbusybox" + default y + depends on BUILD_LIBBUSYBOX + help + 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)" + default n + select FDISK_SUPPORT_LARGE_DISKS + 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 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. + + Native builds leave this empty. + +config EXTRA_CFLAGS + string "Additional CFLAGS" + default "" + help + Additional CFLAGS to pass to the compiler verbatim. + +endmenu + +menu 'Debugging Options' + +config DEBUG + bool "Build BusyBox with extra Debugging symbols" + default n + help + 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 + 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 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 + 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 NO_DEBUG_LIB + bool "None" + +config DMALLOC + bool "Dmalloc" + +config EFENCE + bool "Electric-fence" + +endchoice + +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 PARSE +### bool "Uniform config file parser debugging applet: parse" + +endmenu + +menu 'Installation Options' + +config INSTALL_NO_USR + bool "Don't use /usr" + default n + help + Disable use of /usr. Don't activate this option if you don't know + that you really want this behaviour. + +choice + 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. + +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 INSTALL_APPLET_SCRIPT_WRAPPERS + bool "as script wrappers" + help + Install applets as script wrappers that call the busybox binary. + +config INSTALL_APPLET_DONT + 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 + +config PREFIX + string "BusyBox installation prefix" + default "./_install" + 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 editors/Config.in +source findutils/Config.in +source init/Config.in +source loginutils/Config.in +source e2fsprogs/Config.in +source modutils/Config.in +source util-linux/Config.in +source miscutils/Config.in +source networking/Config.in +source printutils/Config.in +source mailutils/Config.in +source procps/Config.in +source runit/Config.in +source selinux/Config.in +source shell/Config.in +source sysklogd/Config.in |