config: merge "Busybox Settings" and "Busybox Library Tuning" into one menu
Tweak a few help texts while at it Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
parent
2c1258c620
commit
a3df2fa525
98
Config.in
98
Config.in
@ -90,10 +90,14 @@ config BUSYBOX
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help
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The busybox applet provides general help regarding busybox and
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allows the included applets to be listed. It's also required
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if applet links are to be installed at runtime.
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if applet links are to be installed at runtime. If you unselect
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this option, running busybox without any arguments will give
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just a cryptic error message:
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If you can live without these features disabling this will save
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some space.
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$ busybox
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busybox: applet not found
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Running "busybox APPLET [ARGS...]" will still work, of course.
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config FEATURE_INSTALLER
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bool "Support --install [-s] to install applet links at runtime"
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@ -112,6 +116,17 @@ config INSTALL_NO_USR
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will install applets only to /bin and /sbin,
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never to /usr/bin or /usr/sbin.
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config LFS
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bool "Build with Large File Support (for accessing files > 2 GB)"
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default y
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help
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If you want to build BusyBox with large file support, then enable
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this option. This will have no effect if your kernel or your C
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library lacks large file support for large files. Some of the
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programs that can benefit from large file support include dd, gzip,
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cp, mount, tar, and many others. If you want to access files larger
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than 2 Gigabytes, enable this option. Otherwise, leave it set to 'N'.
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config PAM
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bool "Support PAM (Pluggable Authentication Modules)"
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default n
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@ -136,18 +151,6 @@ config FEATURE_DEVPTS
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/dev/ttyp<number> will be used. To use this option, you should have
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devpts mounted.
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config FEATURE_CLEAN_UP
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bool "Clean up all memory before exiting (usually not needed)"
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default n
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help
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As a size optimization, busybox normally exits without explicitly
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freeing dynamically allocated memory or closing files. This saves
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space since the OS will clean up for us, but it can confuse debuggers
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like valgrind, which report tons of memory and resource leaks.
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Don't enable this unless you have a really good reason to clean
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things up manually.
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config FEATURE_UTMP
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bool "Support utmp file"
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default y
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@ -177,7 +180,7 @@ config FEATURE_PIDFILE
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on applets which require pidfiles to run.
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config PID_FILE_PATH
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string "Path to directory for pidfile"
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string "Directory for pidfiles"
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default "/var/run"
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depends on FEATURE_PIDFILE
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help
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@ -269,24 +272,6 @@ config FEATURE_SUID_CONFIG_QUIET
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check this option to avoid users to be notified about missing
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permissions.
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config SELINUX
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bool "Support NSA Security Enhanced Linux"
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default n
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select PLATFORM_LINUX
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help
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Enable support for SELinux in applets ls, ps, and id. Also provide
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the option of compiling in SELinux applets.
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If you do not have a complete SELinux userland installed, this stuff
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will not compile. Specifially, libselinux 1.28 or better is
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directly required by busybox. If the installation is located in a
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non-standard directory, provide it by invoking make as follows:
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CFLAGS=-I<libselinux-include-path> \
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LDFLAGS=-L<libselinux-lib-path> \
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make
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Most people will leave this set to 'N'.
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config FEATURE_PREFER_APPLETS
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bool "exec prefers applets"
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default n
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@ -311,6 +296,36 @@ config BUSYBOX_EXEC_PATH
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executable. If you haven't got /proc, set this to wherever you
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want to run BusyBox from.
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config SELINUX
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bool "Support NSA Security Enhanced Linux"
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default n
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select PLATFORM_LINUX
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help
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Enable support for SELinux in applets ls, ps, and id. Also provide
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the option of compiling in SELinux applets.
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If you do not have a complete SELinux userland installed, this stuff
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will not compile. Specifially, libselinux 1.28 or better is
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directly required by busybox. If the installation is located in a
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non-standard directory, provide it by invoking make as follows:
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CFLAGS=-I<libselinux-include-path> \
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LDFLAGS=-L<libselinux-lib-path> \
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make
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Most people will leave this set to 'N'.
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config FEATURE_CLEAN_UP
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bool "Clean up all memory before exiting (usually not needed)"
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default n
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help
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As a size optimization, busybox normally exits without explicitly
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freeing dynamically allocated memory or closing files. This saves
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space since the OS will clean up for us, but it can confuse debuggers
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like valgrind, which report tons of memory and resource leaks.
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Don't enable this unless you have a really good reason to clean
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things up manually.
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# These are auto-selected by other options
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config FEATURE_SYSLOG
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@ -452,17 +467,6 @@ config FEATURE_SHARED_BUSYBOX
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###
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### Say 'N' unless you know what you are doing.
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config LFS
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bool "Build with Large File Support (for accessing files > 2 GB)"
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default y
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help
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If you want to build BusyBox with large file support, then enable
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this option. This will have no effect if your kernel or your C
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library lacks large file support for large files. Some of the
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programs that can benefit from large file support include dd, gzip,
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cp, mount, tar, and many others. If you want to access files larger
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than 2 Gigabytes, enable this option. Otherwise, leave it set to 'N'.
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config CROSS_COMPILER_PREFIX
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string "Cross Compiler prefix"
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default ""
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@ -669,10 +673,10 @@ config EFENCE
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endchoice
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endmenu
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source libbb/Config.in
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endmenu
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comment "Applets"
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source archival/Config.in
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@ -3,7 +3,7 @@
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# see scripts/kbuild/config-language.txt.
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#
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menu "Busybox Library Tuning"
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comment "Library Tuning"
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INSERT
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@ -66,7 +66,7 @@ config FEATURE_FAST_TOP
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bool "Faster /proc scanning code (+100 bytes)"
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default n # all "fast or small" options default to small
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help
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This option makes top (and ps) ~20% faster (or 20% less CPU hungry),
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This option makes top and ps ~20% faster (or 20% less CPU hungry),
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but code size is slightly bigger.
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config FEATURE_ETC_NETWORKS
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@ -302,13 +302,17 @@ config FEATURE_VERBOSE_CP_MESSAGE
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default n
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help
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Error messages with this feature enabled:
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$ cp file /does_not_exist/file
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cp: cannot create '/does_not_exist/file': Path does not exist
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$ cp file /vmlinuz/file
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cp: cannot stat '/vmlinuz/file': Path has non-directory component
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If this feature is not enabled, they will be, respectively:
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cp: cannot create '/does_not_exist/file': No such file or directory
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cp: cannot stat '/vmlinuz/file': Not a directory
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This will cost you ~60 bytes.
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config FEATURE_USE_SENDFILE
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@ -376,7 +380,4 @@ config FEATURE_HWIB
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bool "Support infiniband HW"
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default y
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help
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Support for printing infiniband addresses in
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network applets.
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endmenu
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Support for printing infiniband addresses in network applets.
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@ -19,6 +19,7 @@
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//config:
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//config: At link time, "text" is padded to a full page. At runtime, all "text"
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//config: pages are mapped RO and executable.
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//config:
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//config: "Data" starts on the next page boundary, but is not padded
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//config: to a full page at the end. "Bss" starts wherever "data" ends.
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//config: At runtime, "data" pages are mapped RW and they are file-backed
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