[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
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+#
+# For a description of the syntax of this configuration file,
+# see scripts/kbuild/config-language.txt.
+#
+
+menu "Busybox Library Tuning"
+
+INSERT
+
+config PASSWORD_MINLEN
+ int "Minimum password length"
+ default 6
+ range 5 32
+ help
+ Minimum allowable password length.
+
+config MD5_SMALL
+ int "MD5: Trade bytes for speed (0:fast, 3:slow)"
+ default 1
+ range 0 3
+ help
+ Trade binary size versus speed for the md5sum algorithm.
+ Approximate values running uClibc and hashing
+ linux-2.4.4.tar.bz2 were:
+ user times (sec) text size (386)
+ 0 (fastest) 1.1 6144
+ 1 1.4 5392
+ 2 3.0 5088
+ 3 (smallest) 5.1 4912
+
+config SHA3_SMALL
+ int "SHA3: Trade bytes for speed (0:fast, 1:slow)"
+ default 1
+ range 0 1
+ help
+ Trade binary size versus speed for the sha3sum algorithm.
+ SHA3_SMALL=0 compared to SHA3_SMALL=1 (approximate):
+ 64-bit x86: +270 bytes of code, 45% faster
+ 32-bit x86: +450 bytes of code, 75% faster
+
+config FEATURE_FAST_TOP
+ bool "Faster /proc scanning code (+100 bytes)"
+ default y
+ help
+ This option makes top (and ps) ~20% faster (or 20% less CPU hungry),
+ but code size is slightly bigger.
+
+config FEATURE_ETC_NETWORKS
+ bool "Support for /etc/networks"
+ default n
+ help
+ Enable support for network names in /etc/networks. This is
+ a rarely used feature which allows you to use names
+ instead of IP/mask pairs in route command.
+
+config FEATURE_USE_TERMIOS
+ bool "Use termios to manipulate the screen"
+ default y
+ depends on MORE || TOP || POWERTOP
+ help
+ This option allows utilities such as 'more' and 'top' to determine
+ the size of the screen. If you leave this disabled, your utilities
+ that display things on the screen will be especially primitive and
+ will be unable to determine the current screen size, and will be
+ unable to move the cursor.
+
+config FEATURE_EDITING
+ bool "Command line editing"
+ default y
+ help
+ Enable line editing (mainly for shell command line).
+
+config FEATURE_EDITING_MAX_LEN
+ int "Maximum length of input"
+ range 128 8192
+ default 1024
+ depends on FEATURE_EDITING
+ help
+ Line editing code uses on-stack buffers for storage.
+ You may want to decrease this parameter if your target machine
+ benefits from smaller stack usage.
+
+config FEATURE_EDITING_VI
+ bool "vi-style line editing commands"
+ default n
+ depends on FEATURE_EDITING
+ help
+ Enable vi-style line editing. In shells, this mode can be
+ turned on and off with "set -o vi" and "set +o vi".
+
+config FEATURE_EDITING_HISTORY
+ int "History size"
+ # Don't allow way too big values here, code uses fixed "char *history[N]" struct member
+ range 0 9999
+ default 255
+ depends on FEATURE_EDITING
+ help
+ Specify command history size (0 - disable).
+
+config FEATURE_EDITING_SAVEHISTORY
+ bool "History saving"
+ default y
+ depends on FEATURE_EDITING
+ help
+ Enable history saving in shells.
+
+config FEATURE_EDITING_SAVE_ON_EXIT
+ bool "Save history on shell exit, not after every command"
+ default n
+ depends on FEATURE_EDITING_SAVEHISTORY
+ help
+ Save history on shell exit, not after every command.
+
+config FEATURE_REVERSE_SEARCH
+ bool "Reverse history search"
+ default y
+ depends on FEATURE_EDITING_SAVEHISTORY
+ help
+ Enable readline-like Ctrl-R combination for reverse history search.
+ Increases code by about 0.5k.
+
+config FEATURE_TAB_COMPLETION
+ bool "Tab completion"
+ default y
+ depends on FEATURE_EDITING
+ help
+ Enable tab completion.
+
+config FEATURE_USERNAME_COMPLETION
+ bool "Username completion"
+ default n
+ depends on FEATURE_TAB_COMPLETION
+ help
+ Enable username completion.
+
+config FEATURE_EDITING_FANCY_PROMPT
+ bool "Fancy shell prompts"
+ default y
+ depends on FEATURE_EDITING
+ help
+ Setting this option allows for prompts to use things like \w and
+ \$ and escape codes.
+
+config FEATURE_EDITING_ASK_TERMINAL
+ bool "Query cursor position from terminal"
+ default n
+ depends on FEATURE_EDITING
+ help
+ Allow usage of "ESC [ 6 n" sequence. Terminal answers back with
+ current cursor position. This information is used to make line
+ editing more robust in some cases.
+ If you are not sure whether your terminals respond to this code
+ correctly, or want to save on code size (about 400 bytes),
+ then do not turn this option on.
+
+config FEATURE_NON_POSIX_CP
+ bool "Non-POSIX, but safer, copying to special nodes"
+ default y
+ help
+ With this option, "cp file symlink" will delete symlink
+ and create a regular file. This does not conform to POSIX,
+ but prevents a symlink attack.
+ Similarly, "cp file device" will not send file's data
+ to the device. (To do that, use "cat file >device")
+
+config FEATURE_VERBOSE_CP_MESSAGE
+ bool "Give more precise messages when copy fails (cp, mv etc)"
+ default n
+ help
+ Error messages with this feature enabled:
+ $ cp file /does_not_exist/file
+ cp: cannot create '/does_not_exist/file': Path does not exist
+ $ cp file /vmlinuz/file
+ cp: cannot stat '/vmlinuz/file': Path has non-directory component
+ If this feature is not enabled, they will be, respectively:
+ cp: cannot create '/does_not_exist/file': No such file or directory
+ cp: cannot stat '/vmlinuz/file': Not a directory
+ This will cost you ~60 bytes.
+
+config FEATURE_COPYBUF_KB
+ int "Copy buffer size, in kilobytes"
+ range 1 1024
+ default 4
+ help
+ Size of buffer used by cp, mv, install, wget etc.
+ Buffers which are 4 kb or less will be allocated on stack.
+ Bigger buffers will be allocated with mmap, with fallback to 4 kb
+ stack buffer if mmap fails.
+
+config FEATURE_SKIP_ROOTFS
+ bool "Skip rootfs in mount table"
+ default y
+ help
+ Ignore rootfs entry in mount table.
+
+ In Linux, kernel has a special filesystem, rootfs, which is initially
+ mounted on /. It contains initramfs data, if kernel is configured
+ to have one. Usually, another file system is mounted over / early
+ in boot process, and therefore most tools which manipulate
+ mount table, such as df, will skip rootfs entry.
+
+ However, some systems do not mount anything on /.
+ If you need to configure busybox for one of these systems,
+ you may find it useful to turn this option off to make df show
+ initramfs statistics.
+
+ Otherwise, choose Y.
+
+config MONOTONIC_SYSCALL
+ bool "Use clock_gettime(CLOCK_MONOTONIC) syscall"
+ default n
+ select PLATFORM_LINUX
+ help
+ Use clock_gettime(CLOCK_MONOTONIC) syscall for measuring
+ time intervals (time, ping, traceroute etc need this).
+ Probably requires Linux 2.6+. If not selected, gettimeofday
+ will be used instead (which gives wrong results if date/time
+ is reset).
+
+config IOCTL_HEX2STR_ERROR
+ bool "Use ioctl names rather than hex values in error messages"
+ default y
+ help
+ Use ioctl names rather than hex values in error messages
+ (e.g. VT_DISALLOCATE rather than 0x5608). If disabled this
+ saves about 1400 bytes.
+
+config FEATURE_HWIB
+ bool "Support infiniband HW"
+ default y
+ help
+ Support for printing infiniband addresses in
+ network applets.
+
+endmenu