config BUSYBOX_CONFIG_SH_IS_ASH
depends on !BUSYBOX_CONFIG_NOMMU
bool "ash"
+ help
+ Choose ash to be the shell executed by 'sh' name.
+ The ash code will be built into busybox. If you don't select
+ "ash" choice (CONFIG_ASH), this shell may only be invoked by
+ the name 'sh' (and not 'ash').
config BUSYBOX_CONFIG_SH_IS_HUSH
bool "hush"
+ help
+ Choose hush to be the shell executed by 'sh' name.
+ The hush code will be built into busybox. If you don't select
+ "hush" choice (CONFIG_HUSH), this shell may only be invoked by
+ the name 'sh' (and not 'hush').
config BUSYBOX_CONFIG_SH_IS_NONE
bool "none"
default BUSYBOX_CONFIG_BASH_IS_NONE
help
Choose which shell you want to be executed by 'bash' alias.
- The ash shell is the most bash compatible and full featured one.
+ The ash shell is the most bash compatible and full featured one,
+ although compatibility is far from being complete.
Note that selecting this option does not switch on any bash
compatibility code. It merely makes it possible to install
config BUSYBOX_CONFIG_BASH_IS_ASH
depends on !BUSYBOX_CONFIG_NOMMU
bool "ash"
+ help
+ Choose ash to be the shell executed by 'bash' name.
+ The ash code will be built into busybox. If you don't select
+ "ash" choice (CONFIG_ASH), this shell may only be invoked by
+ the name 'bash' (and not 'ash').
config BUSYBOX_CONFIG_BASH_IS_HUSH
bool "hush"
+ help
+ Choose hush to be the shell executed by 'bash' name.
+ The hush code will be built into busybox. If you don't select
+ "hush" choice (CONFIG_HUSH), this shell may only be invoked by
+ the name 'bash' (and not 'hush').
config BUSYBOX_CONFIG_BASH_IS_NONE
bool "none"
shell (by Herbert Xu), which was created by porting the 'ash' shell
(written by Kenneth Almquist) from NetBSD.
+# ash options
+# note: Don't remove !NOMMU part in the next line; it would break
+# menuconfig's indenting.
+if !NOMMU && (BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH)
+
config BUSYBOX_CONFIG_ASH_OPTIMIZE_FOR_SIZE
bool "Optimize for size instead of speed"
default BUSYBOX_DEFAULT_ASH_OPTIMIZE_FOR_SIZE
depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
- help
- Compile ash for reduced size at the price of speed.
config BUSYBOX_CONFIG_ASH_INTERNAL_GLOB
bool "Use internal glob() implementation"
Do not use glob() function from libc, use internal implementation.
Use this if you are getting "glob.h: No such file or directory"
or similar build errors.
+ Note that as of now (2017-01), uclibc and musl glob() both have bugs
+ which would break ash if you select N here.
+
+config BUSYBOX_CONFIG_ASH_BASH_COMPAT
+ bool "bash-compatible extensions"
+ default BUSYBOX_DEFAULT_ASH_BASH_COMPAT
+ depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
+
+config BUSYBOX_CONFIG_ASH_JOB_CONTROL
+ bool "Job control"
+ default BUSYBOX_DEFAULT_ASH_JOB_CONTROL
+ depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
+
+config BUSYBOX_CONFIG_ASH_ALIAS
+ bool "Alias support"
+ default BUSYBOX_DEFAULT_ASH_ALIAS
+ depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
config BUSYBOX_CONFIG_ASH_RANDOM_SUPPORT
bool "Pseudorandom generator and $RANDOM variable"
default BUSYBOX_DEFAULT_ASH_EXPAND_PRMT
depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
help
- "PS#" may contain volatile content, such as backquote commands.
+ $PS# may contain volatile content, such as backquote commands.
This option recreates the prompt string from the environment
variable each time it is displayed.
-config BUSYBOX_CONFIG_ASH_BASH_COMPAT
- bool "bash-compatible extensions"
- default BUSYBOX_DEFAULT_ASH_BASH_COMPAT
- depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
- help
- Enable bash-compatible extensions.
-
config BUSYBOX_CONFIG_ASH_IDLE_TIMEOUT
- bool "Idle timeout variable"
+ bool "Idle timeout variable $TMOUT"
default BUSYBOX_DEFAULT_ASH_IDLE_TIMEOUT
depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
help
- Enables bash-like auto-logout after $TMOUT seconds of idle time.
+ Enable bash-like auto-logout after $TMOUT seconds of idle time.
-config BUSYBOX_CONFIG_ASH_JOB_CONTROL
- bool "Job control"
- default BUSYBOX_DEFAULT_ASH_JOB_CONTROL
- depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
- help
- Enable job control in the ash shell.
-
-config BUSYBOX_CONFIG_ASH_ALIAS
- bool "Alias support"
- default BUSYBOX_DEFAULT_ASH_ALIAS
- depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
- help
- Enable alias support in the ash shell.
-
-config BUSYBOX_CONFIG_ASH_GETOPTS
- bool "Builtin getopt to parse positional parameters"
- default BUSYBOX_DEFAULT_ASH_GETOPTS
+config BUSYBOX_CONFIG_ASH_MAIL
+ bool "Check for new mail in interactive shell"
+ default BUSYBOX_DEFAULT_ASH_MAIL
depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
help
- Enable support for getopts builtin in ash.
+ Enable "check for new mail" function:
+ if set, $MAIL file and $MAILPATH list of files
+ are checked for mtime changes, and "you have mail"
+ message is printed if change is detected.
-config BUSYBOX_CONFIG_ASH_BUILTIN_ECHO
- bool "Builtin version of 'echo'"
- default BUSYBOX_DEFAULT_ASH_BUILTIN_ECHO
+config BUSYBOX_CONFIG_ASH_ECHO
+ bool "echo builtin"
+ default BUSYBOX_DEFAULT_ASH_ECHO
depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
- help
- Enable support for echo builtin in ash.
-config BUSYBOX_CONFIG_ASH_BUILTIN_PRINTF
- bool "Builtin version of 'printf'"
- default BUSYBOX_DEFAULT_ASH_BUILTIN_PRINTF
+config BUSYBOX_CONFIG_ASH_PRINTF
+ bool "printf builtin"
+ default BUSYBOX_DEFAULT_ASH_PRINTF
depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
- help
- Enable support for printf builtin in ash.
-config BUSYBOX_CONFIG_ASH_BUILTIN_TEST
- bool "Builtin version of 'test'"
- default BUSYBOX_DEFAULT_ASH_BUILTIN_TEST
+config BUSYBOX_CONFIG_ASH_TEST
+ bool "test builtin"
+ default BUSYBOX_DEFAULT_ASH_TEST
depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
- help
- Enable support for test builtin in ash.
config BUSYBOX_CONFIG_ASH_HELP
bool "help builtin"
default BUSYBOX_DEFAULT_ASH_HELP
depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
- help
- Enable help builtin in ash.
+
+config BUSYBOX_CONFIG_ASH_GETOPTS
+ bool "getopts builtin"
+ default BUSYBOX_DEFAULT_ASH_GETOPTS
+ depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
config BUSYBOX_CONFIG_ASH_CMDCMD
- bool "'command' command to override shell builtins"
+ bool "command builtin"
default BUSYBOX_DEFAULT_ASH_CMDCMD
depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
help
- Enable support for the ash 'command' builtin, which allows
- you to run the specified command with the specified arguments,
- even when there is an ash builtin command with the same name.
+ Enable support for the 'command' builtin, which allows
+ you to run the specified command or builtin,
+ even when there is a function with the same name.
-config BUSYBOX_CONFIG_ASH_MAIL
- bool "Check for new mail on interactive shells"
- default BUSYBOX_DEFAULT_ASH_MAIL
- depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH
- help
- Enable "check for new mail" function in the ash shell.
+endif # ash options
config BUSYBOX_CONFIG_CTTYHACK
bool "cttyhack"
default BUSYBOX_DEFAULT_CTTYHACK
bool "bash-compatible extensions"
default BUSYBOX_DEFAULT_HUSH_BASH_COMPAT
depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
- help
- Enable bash-compatible extensions.
config BUSYBOX_CONFIG_HUSH_BRACE_EXPANSION
bool "Brace expansion"
help
Enable {abc,def} extension.
-config BUSYBOX_CONFIG_HUSH_HELP
- bool "help builtin"
- default BUSYBOX_DEFAULT_HUSH_HELP
- depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
- help
- Enable help builtin in hush. Code size + ~1 kbyte.
-
config BUSYBOX_CONFIG_HUSH_INTERACTIVE
bool "Interactive mode"
default BUSYBOX_DEFAULT_HUSH_INTERACTIVE
bool "Save command history to .hush_history"
default BUSYBOX_DEFAULT_HUSH_SAVEHISTORY
depends on BUSYBOX_CONFIG_HUSH_INTERACTIVE && BUSYBOX_CONFIG_FEATURE_EDITING_SAVEHISTORY
- help
- Enable history saving in hush.
config BUSYBOX_CONFIG_HUSH_JOB
bool "Job control"
but no separate process group is formed.
config BUSYBOX_CONFIG_HUSH_TICK
- bool "Process substitution"
+ bool "Support process substitution"
default BUSYBOX_DEFAULT_HUSH_TICK
depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
help
- Enable process substitution `command` and $(command) in hush.
+ Enable `command` and $(command).
config BUSYBOX_CONFIG_HUSH_IF
bool "Support if/then/elif/else/fi"
default BUSYBOX_DEFAULT_HUSH_IF
depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
- help
- Enable if/then/elif/else/fi in hush.
config BUSYBOX_CONFIG_HUSH_LOOPS
bool "Support for, while and until loops"
default BUSYBOX_DEFAULT_HUSH_LOOPS
depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
- help
- Enable for, while and until loops in hush.
config BUSYBOX_CONFIG_HUSH_CASE
bool "Support case ... esac statement"
default BUSYBOX_DEFAULT_HUSH_CASE
depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
help
- Enable case ... esac statement in hush. +400 bytes.
+ Enable case ... esac statement. +400 bytes.
config BUSYBOX_CONFIG_HUSH_FUNCTIONS
bool "Support funcname() { commands; } syntax"
default BUSYBOX_DEFAULT_HUSH_FUNCTIONS
depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
help
- Enable support for shell functions in hush. +800 bytes.
+ Enable support for shell functions. +800 bytes.
config BUSYBOX_CONFIG_HUSH_LOCAL
- bool "Support local builtin"
+ bool "local builtin"
default BUSYBOX_DEFAULT_HUSH_LOCAL
depends on BUSYBOX_CONFIG_HUSH_FUNCTIONS
help
Enable pseudorandom generator and dynamic variable "$RANDOM".
Each read of "$RANDOM" will generate a new pseudorandom value.
-config BUSYBOX_CONFIG_HUSH_EXPORT_N
- bool "Support 'export -n' option"
- default BUSYBOX_DEFAULT_HUSH_EXPORT_N
- depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
- help
- export -n unexports variables. It is a bash extension.
-
config BUSYBOX_CONFIG_HUSH_MODE_X
bool "Support 'hush -x' option and 'set -x' command"
default BUSYBOX_DEFAULT_HUSH_MODE_X
This instructs hush to print commands before execution.
Adds ~300 bytes.
+config BUSYBOX_CONFIG_HUSH_ECHO
+ bool "echo builtin"
+ default BUSYBOX_DEFAULT_HUSH_ECHO
+ depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_PRINTF
+ bool "printf builtin"
+ default BUSYBOX_DEFAULT_HUSH_PRINTF
+ depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_TEST
+ bool "test builtin"
+ default BUSYBOX_DEFAULT_HUSH_TEST
+ depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_HELP
+ bool "help builtin"
+ default BUSYBOX_DEFAULT_HUSH_HELP
+ depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_EXPORT
+ bool "export builtin"
+ default BUSYBOX_DEFAULT_HUSH_EXPORT
+ depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_EXPORT_N
+ bool "Support 'export -n' option"
+ default BUSYBOX_DEFAULT_HUSH_EXPORT_N
+ depends on BUSYBOX_CONFIG_HUSH_EXPORT
+ help
+ export -n unexports variables. It is a bash extension.
+
+config BUSYBOX_CONFIG_HUSH_KILL
+ bool "kill builtin (supports kill %jobspec)"
+ default BUSYBOX_DEFAULT_HUSH_KILL
+ depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_WAIT
+ bool "wait builtin"
+ default BUSYBOX_DEFAULT_HUSH_WAIT
+ depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_TRAP
+ bool "trap builtin"
+ default BUSYBOX_DEFAULT_HUSH_TRAP
+ depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_TYPE
+ bool "type builtin"
+ default BUSYBOX_DEFAULT_HUSH_TYPE
+ depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_READ
+ bool "read builtin"
+ default BUSYBOX_DEFAULT_HUSH_READ
+ depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_SET
+ bool "set builtin"
+ default BUSYBOX_DEFAULT_HUSH_SET
+ depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_UNSET
+ bool "unset builtin"
+ default BUSYBOX_DEFAULT_HUSH_UNSET
+ depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_ULIMIT
+ bool "ulimit builtin"
+ default BUSYBOX_DEFAULT_HUSH_ULIMIT
+ depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_UMASK
+ bool "umask builtin"
+ default BUSYBOX_DEFAULT_HUSH_UMASK
+ depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
+config BUSYBOX_CONFIG_HUSH_MEMLEAK
+ bool "memleak builtin (debugging)"
+ default BUSYBOX_DEFAULT_HUSH_MEMLEAK
+ depends on BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
config BUSYBOX_CONFIG_MSH
bool "msh (deprecated: aliased to hush)"
default BUSYBOX_DEFAULT_MSH
msh is deprecated and will be removed, please migrate to hush.
+comment "Options common to all shells"
+if ASH || BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_SH_IS_ASH || BUSYBOX_CONFIG_BASH_IS_ASH || BUSYBOX_CONFIG_SH_IS_HUSH || BUSYBOX_CONFIG_BASH_IS_HUSH
+
config BUSYBOX_CONFIG_FEATURE_SH_MATH
bool "POSIX math support"
default BUSYBOX_DEFAULT_FEATURE_SH_MATH
for use as a rescue shell, in the event that you screw up your system.
This is implemented by re-execing /proc/self/exe (typically)
- with right parameters. Some selected applets ("NOFORK" applets)
- can even be executed without creating new process.
- Instead, busybox will call <applet>_main() internally.
-
- However, this causes problems in chroot jails without mounted /proc
- and with ps/top (command name can be shown as 'exe' for applets
- started this way).
-# untrue?
-# Note that this will *also* cause applets to take precedence
-# over shell builtins of the same name. So turning this on will
-# eliminate any performance gained by turning on the builtin "echo"
-# and "test" commands in ash.
-# untrue?
-# Note that when using this option, the shell will attempt to directly
-# run '/bin/busybox'. If you do not have the busybox binary sitting in
-# that exact location with that exact name, this option will not work at
-# all.
+ with right parameters.
+
+ However, there are drawbacks: it is problematic in chroot jails
+ without mounted /proc, and ps/top may show command name as 'exe'
+ for applets started this way.
config BUSYBOX_CONFIG_FEATURE_SH_NOFORK
bool "Run 'nofork' applets directly"
to set shell history size. Note that its max value is capped
by "History size" setting in library tuning section.
+endif # Options common to all shells
endmenu
projects / openwrt / openwrt.git / blobdiff