blob: 9b01757c6b9b39bed56cccac674e40f9d2ee650f [file] [log] [blame]
Rob Landley5cf7c2d2006-02-21 06:44:43 +00001#
2# For a description of the syntax of this configuration file,
3# see scripts/kbuild/config-language.txt.
4#
5
6menu "Busybox Library Tuning"
7
Denys Vlasenkod70e0e92010-06-08 12:15:11 +02008INSERT
9
Denis Vlasenko7d219aa2006-10-05 10:17:08 +000010config PASSWORD_MINLEN
"Robert P. J. Day"087b9d62006-07-02 18:35:39 +000011 int "Minimum password length"
12 default 6
13 range 5 32
14 help
15 Minimum allowable password length.
16
Denis Vlasenko7d219aa2006-10-05 10:17:08 +000017config MD5_SIZE_VS_SPEED
Denys Vlasenko7e7e08f2009-07-06 23:24:20 +020018 int "MD5: Trade bytes for speed (0:fast, 3:slow)"
Rob Landley5cf7c2d2006-02-21 06:44:43 +000019 default 2
20 range 0 3
21 help
22 Trade binary size versus speed for the md5sum algorithm.
23 Approximate values running uClibc and hashing
24 linux-2.4.4.tar.bz2 were:
25 user times (sec) text size (386)
26 0 (fastest) 1.1 6144
27 1 1.4 5392
28 2 3.0 5088
29 3 (smallest) 5.1 4912
30
Denis Vlasenko3afac4c2007-06-19 13:46:24 +000031config FEATURE_FAST_TOP
32 bool "Faster /proc scanning code (+100 bytes)"
Denys Vlasenko2f32bf82010-06-06 04:14:28 +020033 default y
Denis Vlasenko3afac4c2007-06-19 13:46:24 +000034 help
35 This option makes top (and ps) ~20% faster (or 20% less CPU hungry),
36 but code size is slightly bigger.
37
Denis Vlasenkoa61cb922007-06-19 11:24:47 +000038config FEATURE_ETC_NETWORKS
39 bool "Support for /etc/networks"
40 default n
41 help
42 Enable support for network names in /etc/networks. This is
43 a rarely used feature which allows you to use names
44 instead of IP/mask pairs in route command.
45
Denis Vlasenko38f63192007-01-22 09:03:07 +000046config FEATURE_EDITING
47 bool "Command line editing"
Denys Vlasenko2f32bf82010-06-06 04:14:28 +020048 default y
Denis Vlasenko38f63192007-01-22 09:03:07 +000049 help
Denis Vlasenkoe8a07882007-06-10 15:08:44 +000050 Enable line editing (mainly for shell command line).
51
52config FEATURE_EDITING_MAX_LEN
53 int "Maximum length of input"
54 range 128 8192
55 default 1024
56 depends on FEATURE_EDITING
57 help
58 Line editing code uses on-stack buffers for storage.
59 You may want to decrease this parameter if your target machine
60 benefits from smaller stack usage.
Denis Vlasenko38f63192007-01-22 09:03:07 +000061
Denis Vlasenko38f63192007-01-22 09:03:07 +000062config FEATURE_EDITING_VI
63 bool "vi-style line editing commands"
64 default n
65 depends on FEATURE_EDITING
66 help
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +000067 Enable vi-style line editing. In shells, this mode can be
Denis Vlasenko38f63192007-01-22 09:03:07 +000068 turned on and off with "set -o vi" and "set +o vi".
69
70config FEATURE_EDITING_HISTORY
71 int "History size"
72 range 0 99999
Denys Vlasenko2f32bf82010-06-06 04:14:28 +020073 default 255
Denis Vlasenko38f63192007-01-22 09:03:07 +000074 depends on FEATURE_EDITING
75 help
76 Specify command history size.
77
78config FEATURE_EDITING_SAVEHISTORY
79 bool "History saving"
Denys Vlasenko2f32bf82010-06-06 04:14:28 +020080 default y
Denis Vlasenko38f63192007-01-22 09:03:07 +000081 depends on ASH && FEATURE_EDITING
82 help
83 Enable history saving in ash shell.
84
85config FEATURE_TAB_COMPLETION
86 bool "Tab completion"
Denys Vlasenko2f32bf82010-06-06 04:14:28 +020087 default y
Denis Vlasenko38f63192007-01-22 09:03:07 +000088 depends on FEATURE_EDITING
89 help
90 Enable tab completion.
91
92config FEATURE_USERNAME_COMPLETION
93 bool "Username completion"
94 default n
95 depends on FEATURE_TAB_COMPLETION
96 help
97 Enable username completion.
98
99config FEATURE_EDITING_FANCY_PROMPT
100 bool "Fancy shell prompts"
Denys Vlasenko5d26df62010-07-16 15:31:38 +0200101 default y
Denis Vlasenko38f63192007-01-22 09:03:07 +0000102 depends on FEATURE_EDITING
103 help
104 Setting this option allows for prompts to use things like \w and
105 \$ and escape codes.
106
Denys Vlasenko020f4062009-05-17 16:44:54 +0200107config FEATURE_EDITING_ASK_TERMINAL
108 bool "Query cursor position from terminal"
109 default n
110 depends on FEATURE_EDITING
111 help
112 Allow usage of "ESC [ 6 n" sequence. Terminal answers back with
113 current cursor position. This information is used to make line
114 editing more robust in some cases.
115 If you are not sure whether your terminals respond to this code
Denys Vlasenkod83bbf42009-10-27 10:47:49 +0100116 correctly, or want to save on code size (about 400 bytes),
Denys Vlasenko020f4062009-05-17 16:44:54 +0200117 then do not turn this option on.
118
Denys Vlasenko2d7b5bf2009-07-05 12:49:29 +0200119config FEATURE_NON_POSIX_CP
120 bool "Non-POSIX, but safer, copying to special nodes"
121 default y
122 help
123 With this option, "cp file symlink" will delete symlink
124 and create a regular file. This does not conform to POSIX,
125 but prevents a symlink attack.
126 Similarly, "cp file device" will not send file's data
127 to the device.
128
Denis Vlasenkod5fe8802008-02-13 16:52:00 +0000129config FEATURE_VERBOSE_CP_MESSAGE
130 bool "Give more precise messages when copy fails (cp, mv etc)"
131 default n
132 help
133 Error messages with this feature enabled:
134 $ cp file /does_not_exist/file
135 cp: cannot create '/does_not_exist/file': Path does not exist
136 $ cp file /vmlinuz/file
137 cp: cannot stat '/vmlinuz/file': Path has non-directory component
138 If this feature is not enabled, they will be, respectively:
Denys Vlasenkoa68bd4b2009-10-14 11:52:01 +0200139 cp: cannot create '/does_not_exist/file': No such file or directory
Denis Vlasenkod5fe8802008-02-13 16:52:00 +0000140 cp: cannot stat '/vmlinuz/file': Not a directory
Denis Vlasenkod5fe8802008-02-13 16:52:00 +0000141 This will cost you ~60 bytes.
142
Denis Vlasenko4c139222007-12-02 03:27:42 +0000143config FEATURE_COPYBUF_KB
144 int "Copy buffer size, in kilobytes"
145 range 1 1024
146 default 4
147 help
148 Size of buffer used by cp, mv, install etc.
149 Buffers which are 4 kb or less will be allocated on stack.
150 Bigger buffers will be allocated with mmap, with fallback to 4 kb
151 stack buffer if mmap fails.
152
Denis Vlasenko459be352007-06-17 19:09:05 +0000153config MONOTONIC_SYSCALL
154 bool "Use clock_gettime(CLOCK_MONOTONIC) syscall"
Denys Vlasenko2f32bf82010-06-06 04:14:28 +0200155 default n
Jeremie Koenig1d7266d2010-07-19 00:44:56 +0200156 depends on PLATFORM_LINUX
Denis Vlasenko459be352007-06-17 19:09:05 +0000157 help
158 Use clock_gettime(CLOCK_MONOTONIC) syscall for measuring
159 time intervals (time, ping, traceroute etc need this).
160 Probably requires Linux 2.6+. If not selected, gettimeofday
161 will be used instead (which gives wrong results if date/time
162 is reset).
163
Denis Vlasenkofb79a2e2007-07-14 22:07:14 +0000164config IOCTL_HEX2STR_ERROR
165 bool "Use ioctl names rather than hex values in error messages"
166 default y
167 help
168 Use ioctl names rather than hex values in error messages
169 (e.g. VT_DISALLOCATE rather than 0x5608). If disabled this
170 saves about 1400 bytes.
Bernhard Reutner-Fischerf3b778a2008-05-16 16:10:31 +0000171
172config FEATURE_HWIB
173 bool "Support infiniband HW"
174 default y
175 help
176 Support for printing infiniband addresses in
177 network applets.
Denys Vlasenkobcbd37d2009-06-18 13:23:58 +0200178
Rob Landley5cf7c2d2006-02-21 06:44:43 +0000179endmenu