package/utils/busybox/config/libbb/Config.in

   1 # DO NOT EDIT. This file is generated from Config.src
   2 #
   3 # For a description of the syntax of this configuration file,
   4 # see scripts/kbuild/config-language.txt.
   5 #
   6
   7 menu "Busybox Library Tuning"
   8
   9 config BUSYBOX_CONFIG_FEATURE_SYSTEMD
  10         bool "Enable systemd support"
  11         default BUSYBOX_DEFAULT_FEATURE_SYSTEMD
  12         help
  13           If you plan to use busybox daemons on a system where daemons
  14           are controlled by systemd, enable this option.
  15           If you don't use systemd, it is still safe to enable it,
  16           but the downside is increased code size.
  17 config BUSYBOX_CONFIG_FEATURE_RTMINMAX
  18         bool "Support RTMIN[+n] and RTMAX[-n] signal names"
  19         default BUSYBOX_DEFAULT_FEATURE_RTMINMAX
  20         help
  21           Support RTMIN[+n] and RTMAX[-n] signal names
  22           in kill, killall etc. This costs ~250 bytes.
  23
  24 config BUSYBOX_CONFIG_PASSWORD_MINLEN
  25         int "Minimum password length"
  26         default BUSYBOX_DEFAULT_PASSWORD_MINLEN
  27         range 5 32
  28         help
  29           Minimum allowable password length.
  30
  31 config BUSYBOX_CONFIG_MD5_SMALL
  32         int "MD5: Trade bytes for speed (0:fast, 3:slow)"
  33         default BUSYBOX_DEFAULT_MD5_SMALL
  34         range 0 3
  35         help
  36           Trade binary size versus speed for the md5sum algorithm.
  37           Approximate values running uClibc and hashing
  38           linux-2.4.4.tar.bz2 were:
  39                             user times (sec)  text size (386)
  40           0 (fastest)         1.1                6144
  41           1                   1.4                5392
  42           2                   3.0                5088
  43           3 (smallest)        5.1                4912
  44
  45 config BUSYBOX_CONFIG_SHA3_SMALL
  46         int "SHA3: Trade bytes for speed (0:fast, 1:slow)"
  47         default BUSYBOX_DEFAULT_SHA3_SMALL
  48         range 0 1
  49         help
  50           Trade binary size versus speed for the sha3sum algorithm.
  51           SHA3_SMALL=0 compared to SHA3_SMALL=1 (approximate):
  52           64-bit x86: +270 bytes of code, 45% faster
  53           32-bit x86: +450 bytes of code, 75% faster
  54
  55 config BUSYBOX_CONFIG_FEATURE_FAST_TOP
  56         bool "Faster /proc scanning code (+100 bytes)"
  57         default BUSYBOX_DEFAULT_FEATURE_FAST_TOP
  58         help
  59           This option makes top (and ps) ~20% faster (or 20% less CPU hungry),
  60           but code size is slightly bigger.
  61
  62 config BUSYBOX_CONFIG_FEATURE_ETC_NETWORKS
  63         bool "Support for /etc/networks"
  64         default BUSYBOX_DEFAULT_FEATURE_ETC_NETWORKS
  65         help
  66           Enable support for network names in /etc/networks. This is
  67           a rarely used feature which allows you to use names
  68           instead of IP/mask pairs in route command.
  69
  70 config BUSYBOX_CONFIG_FEATURE_USE_TERMIOS
  71         bool "Use termios to manipulate the screen"
  72         default BUSYBOX_DEFAULT_FEATURE_USE_TERMIOS
  73         depends on BUSYBOX_CONFIG_MORE || BUSYBOX_CONFIG_TOP || BUSYBOX_CONFIG_POWERTOP
  74         help
  75           This option allows utilities such as 'more' and 'top' to determine
  76           the size of the screen. If you leave this disabled, your utilities
  77           that display things on the screen will be especially primitive and
  78           will be unable to determine the current screen size, and will be
  79           unable to move the cursor.
  80
  81 config BUSYBOX_CONFIG_FEATURE_EDITING
  82         bool "Command line editing"
  83         default BUSYBOX_DEFAULT_FEATURE_EDITING
  84         help
  85           Enable line editing (mainly for shell command line).
  86
  87 config BUSYBOX_CONFIG_FEATURE_EDITING_MAX_LEN
  88         int "Maximum length of input"
  89         range 128 8192
  90         default BUSYBOX_DEFAULT_FEATURE_EDITING_MAX_LEN
  91         depends on BUSYBOX_CONFIG_FEATURE_EDITING
  92         help
  93           Line editing code uses on-stack buffers for storage.
  94           You may want to decrease this parameter if your target machine
  95           benefits from smaller stack usage.
  96
  97 config BUSYBOX_CONFIG_FEATURE_EDITING_VI
  98         bool "vi-style line editing commands"
  99         default BUSYBOX_DEFAULT_FEATURE_EDITING_VI
 100         depends on BUSYBOX_CONFIG_FEATURE_EDITING
 101         help
 102           Enable vi-style line editing. In shells, this mode can be
 103           turned on and off with "set -o vi" and "set +o vi".
 104
 105 config BUSYBOX_CONFIG_FEATURE_EDITING_HISTORY
 106         int "History size"
 107         # Don't allow way too big values here, code uses fixed "char *history[N]" struct member
 108         range 0 9999
 109         default BUSYBOX_DEFAULT_FEATURE_EDITING_HISTORY
 110         depends on BUSYBOX_CONFIG_FEATURE_EDITING
 111         help
 112           Specify command history size (0 - disable).
 113
 114 config BUSYBOX_CONFIG_FEATURE_EDITING_SAVEHISTORY
 115         bool "History saving"
 116         default BUSYBOX_DEFAULT_FEATURE_EDITING_SAVEHISTORY
 117         depends on BUSYBOX_CONFIG_FEATURE_EDITING
 118         help
 119           Enable history saving in shells.
 120
 121 config BUSYBOX_CONFIG_FEATURE_EDITING_SAVE_ON_EXIT
 122         bool "Save history on shell exit, not after every command"
 123         default BUSYBOX_DEFAULT_FEATURE_EDITING_SAVE_ON_EXIT
 124         depends on BUSYBOX_CONFIG_FEATURE_EDITING_SAVEHISTORY
 125         help
 126           Save history on shell exit, not after every command.
 127
 128 config BUSYBOX_CONFIG_FEATURE_REVERSE_SEARCH
 129         bool "Reverse history search"
 130         default BUSYBOX_DEFAULT_FEATURE_REVERSE_SEARCH
 131         depends on BUSYBOX_CONFIG_FEATURE_EDITING_SAVEHISTORY
 132         help
 133           Enable readline-like Ctrl-R combination for reverse history search.
 134           Increases code by about 0.5k.
 135
 136 config BUSYBOX_CONFIG_FEATURE_TAB_COMPLETION
 137         bool "Tab completion"
 138         default BUSYBOX_DEFAULT_FEATURE_TAB_COMPLETION
 139         depends on BUSYBOX_CONFIG_FEATURE_EDITING
 140         help
 141           Enable tab completion.
 142
 143 config BUSYBOX_CONFIG_FEATURE_USERNAME_COMPLETION
 144         bool "Username completion"
 145         default BUSYBOX_DEFAULT_FEATURE_USERNAME_COMPLETION
 146         depends on BUSYBOX_CONFIG_FEATURE_TAB_COMPLETION
 147         help
 148           Enable username completion.
 149
 150 config BUSYBOX_CONFIG_FEATURE_EDITING_FANCY_PROMPT
 151         bool "Fancy shell prompts"
 152         default BUSYBOX_DEFAULT_FEATURE_EDITING_FANCY_PROMPT
 153         depends on BUSYBOX_CONFIG_FEATURE_EDITING
 154         help
 155           Setting this option allows for prompts to use things like \w and
 156           \$ and escape codes.
 157
 158 config BUSYBOX_CONFIG_FEATURE_EDITING_ASK_TERMINAL
 159         bool "Query cursor position from terminal"
 160         default BUSYBOX_DEFAULT_FEATURE_EDITING_ASK_TERMINAL
 161         depends on BUSYBOX_CONFIG_FEATURE_EDITING
 162         help
 163           Allow usage of "ESC [ 6 n" sequence. Terminal answers back with
 164           current cursor position. This information is used to make line
 165           editing more robust in some cases.
 166           If you are not sure whether your terminals respond to this code
 167           correctly, or want to save on code size (about 400 bytes),
 168           then do not turn this option on.
 169
 170 config BUSYBOX_CONFIG_FEATURE_NON_POSIX_CP
 171         bool "Non-POSIX, but safer, copying to special nodes"
 172         default BUSYBOX_DEFAULT_FEATURE_NON_POSIX_CP
 173         help
 174           With this option, "cp file symlink" will delete symlink
 175           and create a regular file. This does not conform to POSIX,
 176           but prevents a symlink attack.
 177           Similarly, "cp file device" will not send file's data
 178           to the device. (To do that, use "cat file >device")
 179
 180 config BUSYBOX_CONFIG_FEATURE_VERBOSE_CP_MESSAGE
 181         bool "Give more precise messages when copy fails (cp, mv etc)"
 182         default BUSYBOX_DEFAULT_FEATURE_VERBOSE_CP_MESSAGE
 183         help
 184           Error messages with this feature enabled:
 185             $ cp file /does_not_exist/file
 186             cp: cannot create '/does_not_exist/file': Path does not exist
 187             $ cp file /vmlinuz/file
 188             cp: cannot stat '/vmlinuz/file': Path has non-directory component
 189           If this feature is not enabled, they will be, respectively:
 190             cp: cannot create '/does_not_exist/file': No such file or directory
 191             cp: cannot stat '/vmlinuz/file': Not a directory
 192           This will cost you ~60 bytes.
 193
 194 config BUSYBOX_CONFIG_FEATURE_COPYBUF_KB
 195         int "Copy buffer size, in kilobytes"
 196         range 1 1024
 197         default BUSYBOX_DEFAULT_FEATURE_COPYBUF_KB
 198         help
 199           Size of buffer used by cp, mv, install, wget etc.
 200           Buffers which are 4 kb or less will be allocated on stack.
 201           Bigger buffers will be allocated with mmap, with fallback to 4 kb
 202           stack buffer if mmap fails.
 203
 204 config BUSYBOX_CONFIG_FEATURE_SKIP_ROOTFS
 205         bool "Skip rootfs in mount table"
 206         default BUSYBOX_DEFAULT_FEATURE_SKIP_ROOTFS
 207         help
 208           Ignore rootfs entry in mount table.
 209
 210           In Linux, kernel has a special filesystem, rootfs, which is initially
 211           mounted on /. It contains initramfs data, if kernel is configured
 212           to have one. Usually, another file system is mounted over / early
 213           in boot process, and therefore most tools which manipulate
 214           mount table, such as df, will skip rootfs entry.
 215
 216           However, some systems do not mount anything on /.
 217           If you need to configure busybox for one of these systems,
 218           you may find it useful to turn this option off to make df show
 219           initramfs statistics.
 220
 221           Otherwise, choose Y.
 222
 223 config BUSYBOX_CONFIG_MONOTONIC_SYSCALL
 224         bool "Use clock_gettime(CLOCK_MONOTONIC) syscall"
 225         default BUSYBOX_DEFAULT_MONOTONIC_SYSCALL
 226         select BUSYBOX_CONFIG_PLATFORM_LINUX
 227         help
 228           Use clock_gettime(CLOCK_MONOTONIC) syscall for measuring
 229           time intervals (time, ping, traceroute etc need this).
 230           Probably requires Linux 2.6+. If not selected, gettimeofday
 231           will be used instead (which gives wrong results if date/time
 232           is reset).
 233
 234 config BUSYBOX_CONFIG_IOCTL_HEX2STR_ERROR
 235         bool "Use ioctl names rather than hex values in error messages"
 236         default BUSYBOX_DEFAULT_IOCTL_HEX2STR_ERROR
 237         help
 238           Use ioctl names rather than hex values in error messages
 239           (e.g. VT_DISALLOCATE rather than 0x5608). If disabled this
 240           saves about 1400 bytes.
 241
 242 config BUSYBOX_CONFIG_FEATURE_HWIB
 243         bool "Support infiniband HW"
 244         default BUSYBOX_DEFAULT_FEATURE_HWIB
 245         help
 246           Support for printing infiniband addresses in
 247           network applets.
 248
 249 endmenu