020f40693a
This makes line editing able to recognize case when cursor was not at the beginning of the line. It may also be adapted later to find out display size (serial line users would love it). Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
167 lines
4.6 KiB
Plaintext
167 lines
4.6 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see scripts/kbuild/config-language.txt.
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#
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menu "Busybox Library Tuning"
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config PASSWORD_MINLEN
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int "Minimum password length"
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default 6
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range 5 32
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help
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Minimum allowable password length.
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config MD5_SIZE_VS_SPEED
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int "MD5: Trade Bytes for Speed"
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default 2
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range 0 3
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help
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Trade binary size versus speed for the md5sum algorithm.
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Approximate values running uClibc and hashing
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linux-2.4.4.tar.bz2 were:
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user times (sec) text size (386)
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0 (fastest) 1.1 6144
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1 1.4 5392
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2 3.0 5088
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3 (smallest) 5.1 4912
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config FEATURE_FAST_TOP
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bool "Faster /proc scanning code (+100 bytes)"
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default n
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help
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This option makes top (and ps) ~20% faster (or 20% less CPU hungry),
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but code size is slightly bigger.
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config FEATURE_ETC_NETWORKS
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bool "Support for /etc/networks"
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default n
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help
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Enable support for network names in /etc/networks. This is
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a rarely used feature which allows you to use names
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instead of IP/mask pairs in route command.
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config FEATURE_EDITING
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bool "Command line editing"
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default n
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help
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Enable line editing (mainly for shell command line).
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config FEATURE_EDITING_MAX_LEN
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int "Maximum length of input"
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range 128 8192
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default 1024
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depends on FEATURE_EDITING
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help
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Line editing code uses on-stack buffers for storage.
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You may want to decrease this parameter if your target machine
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benefits from smaller stack usage.
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config FEATURE_EDITING_VI
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bool "vi-style line editing commands"
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default n
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depends on FEATURE_EDITING
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help
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Enable vi-style line editing. In shells, this mode can be
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turned on and off with "set -o vi" and "set +o vi".
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config FEATURE_EDITING_HISTORY
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int "History size"
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range 0 99999
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default 15
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depends on FEATURE_EDITING
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help
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Specify command history size.
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config FEATURE_EDITING_SAVEHISTORY
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bool "History saving"
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default n
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depends on ASH && FEATURE_EDITING
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help
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Enable history saving in ash shell.
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config FEATURE_TAB_COMPLETION
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bool "Tab completion"
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default n
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depends on FEATURE_EDITING
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help
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Enable tab completion.
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config FEATURE_USERNAME_COMPLETION
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bool "Username completion"
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default n
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depends on FEATURE_TAB_COMPLETION
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help
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Enable username completion.
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config FEATURE_EDITING_FANCY_PROMPT
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bool "Fancy shell prompts"
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default n
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depends on FEATURE_EDITING
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help
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Setting this option allows for prompts to use things like \w and
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\$ and escape codes.
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config FEATURE_EDITING_ASK_TERMINAL
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bool "Query cursor position from terminal"
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default n
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depends on FEATURE_EDITING
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help
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Allow usage of "ESC [ 6 n" sequence. Terminal answers back with
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current cursor position. This information is used to make line
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editing more robust in some cases.
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If you are not sure whether your terminals respond to this code
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correctly, or want to save on code size (about 300 bytes),
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then do not turn this option on.
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config FEATURE_VERBOSE_CP_MESSAGE
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bool "Give more precise messages when copy fails (cp, mv etc)"
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default n
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help
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Error messages with this feature enabled:
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$ cp file /does_not_exist/file
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cp: cannot create '/does_not_exist/file': Path does not exist
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$ cp file /vmlinuz/file
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cp: cannot stat '/vmlinuz/file': Path has non-directory component
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If this feature is not enabled, they will be, respectively:
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cp: cannot remove '/does_not_exist/file': No such file or directory
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cp: cannot stat '/vmlinuz/file': Not a directory
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respectively.
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This will cost you ~60 bytes.
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config FEATURE_COPYBUF_KB
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int "Copy buffer size, in kilobytes"
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range 1 1024
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default 4
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help
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Size of buffer used by cp, mv, install etc.
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Buffers which are 4 kb or less will be allocated on stack.
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Bigger buffers will be allocated with mmap, with fallback to 4 kb
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stack buffer if mmap fails.
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config MONOTONIC_SYSCALL
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bool "Use clock_gettime(CLOCK_MONOTONIC) syscall"
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default y
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help
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Use clock_gettime(CLOCK_MONOTONIC) syscall for measuring
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time intervals (time, ping, traceroute etc need this).
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Probably requires Linux 2.6+. If not selected, gettimeofday
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will be used instead (which gives wrong results if date/time
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is reset).
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config IOCTL_HEX2STR_ERROR
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bool "Use ioctl names rather than hex values in error messages"
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default y
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help
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Use ioctl names rather than hex values in error messages
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(e.g. VT_DISALLOCATE rather than 0x5608). If disabled this
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saves about 1400 bytes.
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config FEATURE_HWIB
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bool "Support infiniband HW"
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default y
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help
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Support for printing infiniband addresses in
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network applets.
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endmenu
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