2 # For a description of the syntax of this configuration file,
3 # see scripts/kbuild/config-language.txt.
6 menu "Busybox Library Tuning"
8 config BUSYBOX_CONFIG_PASSWORD_MINLEN
9 int "Minimum password length"
13 Minimum allowable password length.
15 config BUSYBOX_CONFIG_MD5_SIZE_VS_SPEED
16 int "MD5: Trade Bytes for Speed"
20 Trade binary size versus speed for the md5sum algorithm.
21 Approximate values running uClibc and hashing
22 linux-2.4.4.tar.bz2 were:
23 user times (sec) text size (386)
29 config BUSYBOX_CONFIG_FEATURE_FAST_TOP
30 bool "Faster /proc scanning code (+100 bytes)"
33 This option makes top (and ps) ~20% faster (or 20% less CPU hungry),
34 but code size is slightly bigger.
36 config BUSYBOX_CONFIG_FEATURE_ETC_NETWORKS
37 bool "Support for /etc/networks"
40 Enable support for network names in /etc/networks. This is
41 a rarely used feature which allows you to use names
42 instead of IP/mask pairs in route command.
44 config BUSYBOX_CONFIG_FEATURE_EDITING
45 bool "Command line editing"
48 Enable line editing (mainly for shell command line).
50 config BUSYBOX_CONFIG_FEATURE_EDITING_MAX_LEN
51 int "Maximum length of input"
54 depends on BUSYBOX_CONFIG_FEATURE_EDITING
56 Line editing code uses on-stack buffers for storage.
57 You may want to decrease this parameter if your target machine
58 benefits from smaller stack usage.
60 config BUSYBOX_CONFIG_FEATURE_EDITING_VI
61 bool "vi-style line editing commands"
63 depends on BUSYBOX_CONFIG_FEATURE_EDITING
65 Enable vi-style line editing. In shells, this mode can be
66 turned on and off with "set -o vi" and "set +o vi".
68 config BUSYBOX_CONFIG_FEATURE_EDITING_HISTORY
72 depends on BUSYBOX_CONFIG_FEATURE_EDITING
74 Specify command history size.
76 config BUSYBOX_CONFIG_FEATURE_EDITING_SAVEHISTORY
79 depends on BUSYBOX_CONFIG_ASH && BUSYBOX_CONFIG_FEATURE_EDITING
81 Enable history saving in ash shell.
83 config BUSYBOX_CONFIG_FEATURE_TAB_COMPLETION
86 depends on BUSYBOX_CONFIG_FEATURE_EDITING
88 Enable tab completion.
90 config BUSYBOX_CONFIG_FEATURE_USERNAME_COMPLETION
91 bool "Username completion"
93 depends on BUSYBOX_CONFIG_FEATURE_TAB_COMPLETION
95 Enable username completion.
97 config BUSYBOX_CONFIG_FEATURE_EDITING_FANCY_PROMPT
98 bool "Fancy shell prompts"
100 depends on BUSYBOX_CONFIG_FEATURE_EDITING
102 Setting this option allows for prompts to use things like \w and
105 config BUSYBOX_CONFIG_FEATURE_VERBOSE_CP_MESSAGE
106 bool "Give more precise messages when copy fails (cp, mv etc)"
109 Error messages with this feature enabled:
110 $ cp file /does_not_exist/file
111 cp: cannot create '/does_not_exist/file': Path does not exist
112 $ cp file /vmlinuz/file
113 cp: cannot stat '/vmlinuz/file': Path has non-directory component
114 If this feature is not enabled, they will be, respectively:
115 cp: cannot remove '/does_not_exist/file': No such file or directory
116 cp: cannot stat '/vmlinuz/file': Not a directory
118 This will cost you ~60 bytes.
120 config BUSYBOX_CONFIG_FEATURE_COPYBUF_KB
121 int "Copy buffer size, in kilobytes"
125 Size of buffer used by cp, mv, install etc.
126 Buffers which are 4 kb or less will be allocated on stack.
127 Bigger buffers will be allocated with mmap, with fallback to 4 kb
128 stack buffer if mmap fails.
130 config BUSYBOX_CONFIG_MONOTONIC_SYSCALL
131 bool "Use clock_gettime(CLOCK_MONOTONIC) syscall"
134 Use clock_gettime(CLOCK_MONOTONIC) syscall for measuring
135 time intervals (time, ping, traceroute etc need this).
136 Probably requires Linux 2.6+. If not selected, gettimeofday
137 will be used instead (which gives wrong results if date/time
140 config BUSYBOX_CONFIG_IOCTL_HEX2STR_ERROR
141 bool "Use ioctl names rather than hex values in error messages"
144 Use ioctl names rather than hex values in error messages
145 (e.g. VT_DISALLOCATE rather than 0x5608). If disabled this
146 saves about 1400 bytes.
148 config BUSYBOX_CONFIG_FEATURE_HWIB
149 bool "Support infiniband HW"
152 Support for printing infiniband addresses in