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126 lines
5.1 KiB
Plaintext
126 lines
5.1 KiB
Plaintext
# BusyBox configuration option Help File
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#
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# Format of this file: description<nl>variable<nl>help text<nl><nl>.
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# The help texts may contain empty lines, but every non-empty line must
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# be indented two positions. Order of the help texts does not matter,
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# however, no variable should be documented twice: if it is, only the
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# first occurrence will be used. We try to keep the help texts of related
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# variables close together. Lines starting with `#' are ignored. To be
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# nice to menuconfig, limit your line length to 70 characters.
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#
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# Comments of the form "# Choice:" followed by a menu name are used
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# internally by the maintainers' consistency-checking tools.
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#
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# If you add a help text to this file, please try to be as gentle as
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# possible. Don't use unexplained acronyms and generally write for the
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# hypothetical ignorant but intelligent user who has just bought a PC,
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# removed Windows, installed Linux and is now compiling up BusyBox
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# for the first time. Tell them what to do if they're unsure.
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#
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# Mention all the relevant READMEs and HOWTOs in the help text.
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# Make them file URLs relative to the top level of the source tree so
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# that help browsers can turn them into hotlinks. All URLs ahould be
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# surrounded by <>.
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#
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# Repetitions are fine since the help texts are not meant to be read
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# in sequence. It is good style to include URLs pointing to more
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# detailed technical information, pictures of the hardware, etc.
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#
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# The most important thing to include in a help entry is *motivation*.
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# Explain why someone configuring BusyBox might want to select your
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# option.
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#
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Show verbose applets usage message
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CONFIG_FEATURE_VERBOSE_USAGE
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All BusyBox applets will show more verbose help messages when
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busybox is invoked with --help. This will add lots of text to the
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busybox binary. In the default configuration, this will add about
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13k, but it can add much more depending on your configuration.
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Enable automatic symlink creation for BusyBox built-in applets
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CONFIG_FEATURE_INSTALLER
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Enable 'busybox --install [-s]' support. This will allow you to use
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busybox at runtime to create hard links or symlinks for all the
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applets that are compiled into busybox. This feature requires the
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/proc filesystem.
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Locale support
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CONFIG_LOCALE_SUPPORT
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Enable this if your system has locale support, and you would like
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busybox to support locale settings.
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Enable devfs support
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CONFIG_FEATURE_DEVFS
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Enable if you want BusyBox to work with devfs.
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Clean up all memory before exiting
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CONFIG_FEATURE_CLEAN_UP
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As a size optimization, busybox by default does not cleanup memory
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that is dynamically allocated or close files before exiting. This
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saves space and is usually not needed since the OS will clean up for
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us. Don't enable this unless you have a really good reason to clean
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things up manually.
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Buffers allocation policy
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CONFIG_FEATURE_BUFFERS_USE_MALLOC
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There are 3 ways BusyBox can handle buffer allocations:
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- Use malloc. This costs code size for the call to xmalloc.
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- Put them on stack. For some very small machines with limited stack
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space, this can be deadly. For most folks, this works just fine.
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- Put them in BSS. This works beautifully for computers with a real
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MMU (and OS support), but wastes runtime RAM for uCLinux. This
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behavior was the only one available for BusyBox versions 0.48 and
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earlier.
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Enable the ar applet
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CONFIG_AR
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ar is an archival utility program used to create, modify, and
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extract contents from archives. An archive is a single file holding
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a collection of other files in a structure that makes it possible to
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retrieve the original individual files (called archive members).
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The original files' contents, mode (permissions), timestamp, owner,
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and group are preserved in the archive, and can be restored on
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extraction.
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On an x86 system, the ar applet adds about XXX bytes.
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Unless you have a specific application which requires ar, you should
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probably say N here.
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Enable the bunzip2 applet
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CONFIG_BUNZIP2
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bunzip2 is an compression utility using the Burrows-Wheeler block
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sorting text compression algorithm, and Huffman coding. Compression
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is generally considerably better than that achieved by more
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conventional LZ77/LZ78-based compressors, and approaches the
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performance of the PPM family of statistical compressors.
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The BusyBox bunzip2 applet is limited to de-compression only. On an
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x86 system, this applet adds about XXX bytes.
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Unless you have a specific application which requires bunzip2, you
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should probably say N here.
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# FIXME -- document the rest of the BusyBox config options....
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Enable the run-parts applet
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CONFIG_RUN_PARTS
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run-parts is an utility designed to run all the scripts in a directory.
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It is useful to set up a directory like cron.daily, where you need to
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execute all the scripts in that directory.
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This implementation of run-parts doesn't accept long options, and
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some features (like report mode) aren't implemented.
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Unless you know that run-parts is used in some of your scripts
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you can safely say N here.
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# The following sets edit modes for GNU EMACS
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# Local Variables:
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# case-fold-search:nil
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# fill-prefix:" "
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# adaptive-fill:nil
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# fill-column:70
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# End:
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