diff options
Diffstat (limited to 'package/busybox/config/Config.in')
| -rw-r--r-- | package/busybox/config/Config.in | 145 |
1 files changed, 97 insertions, 48 deletions
diff --git a/package/busybox/config/Config.in b/package/busybox/config/Config.in index d3c1cb6341..abeb472dba 100644 --- a/package/busybox/config/Config.in +++ b/package/busybox/config/Config.in @@ -185,10 +185,10 @@ config BUSYBOX_CONFIG_FEATURE_SUID_CONFIG The file has to be owned by user root, group root and has to be writeable only by root: - (chown 0.0 /etc/busybox.conf; chmod 600 /etc/busybox.conf) + (chown 0.0 /etc/busybox.conf; chmod 600 /etc/busybox.conf) The busybox executable has to be owned by user root, group root and has to be setuid root for this to work: - (chown 0.0 /bin/busybox; chmod 4755 /bin/busybox) + (chown 0.0 /bin/busybox; chmod 4755 /bin/busybox) Robert 'sandman' Griebl has more information here: <url: http://www.softforge.de/bb/suid.html >. @@ -282,41 +282,80 @@ config BUSYBOX_CONFIG_STATIC config BUSYBOX_CONFIG_BUILD_LIBBUSYBOX bool "Build shared libbusybox" default n + depends on !BUSYBOX_CONFIG_FEATURE_PREFER_APPLETS + help + Build a shared library libbusybox.so.N.N.N which contains all + busybox code. + + This feature allows every applet to be built as a tiny + separate executable. Enabling it for "one big busybox binary" + approach serves no purpose and increases code size. + You should almost certainly say "no" to this. + +### config FEATURE_FULL_LIBBUSYBOX +### bool "Feature-complete libbusybox" +### default n if !FEATURE_SHARED_BUSYBOX +### depends on BUILD_LIBBUSYBOX +### help +### Build a libbusybox with the complete feature-set, disregarding +### the actually selected config. +### +### Normally, libbusybox will only contain the features which are +### used by busybox itself. If you plan to write a separate +### standalone application which uses libbusybox say 'Y'. +### +### Note: libbusybox is GPL, not LGPL, and exports no stable API that +### might act as a copyright barrier. We can and will modify the +### exported function set between releases (even minor version number +### changes), and happily break out-of-tree features. +### +### Say 'N' if in doubt. + +config BUSYBOX_CONFIG_FEATURE_INDIVIDUAL + bool "Produce a binary for each applet, linked against libbusybox" + default n + depends on !BUSYBOX_CONFIG_STATIC && BUSYBOX_CONFIG_BUILD_LIBBUSYBOX help - Build a shared library libbusybox.so which contains all - libraries used inside busybox. - - This is an experimental feature intended to support the upcoming - "make standalone" mode. Enabling it against the one big busybox - binary serves no purpose (and increases the size). You should - almost certainly say "no" to this right now. - -config BUSYBOX_CONFIG_FEATURE_FULL_LIBBUSYBOX - bool "Feature-complete libbusybox" - default n if !BUSYBOX_CONFIG_FEATURE_SHARED_BUSYBOX - depends on BUSYBOX_CONFIG_BUILD_LIBBUSYBOX - help - Build a libbusybox with the complete feature-set, disregarding - the actually selected config. + If your CPU architecture doesn't allow for sharing text/rodata + sections of running binaries, but allows for runtime dynamic + libraries, this option will allow you to reduce memory footprint + when you have many different applets running at once. - Normally, libbusybox will only contain the features which are - used by busybox itself. If you plan to write a separate - standalone application which uses libbusybox say 'Y'. + If your CPU architecture allows for sharing text/rodata, + having single binary is more optimal. - Note: libbusybox is GPL, not LGPL, and exports no stable API that - might act as a copyright barrier. We can and will modify the - exported function set between releases (even minor version number - changes), and happily break out-of-tree features. + Each applet will be a tiny program, dynamically linked + against libbusybox.so.N.N.N. - Say 'N' if in doubt. + You need to have a working dynamic linker. config BUSYBOX_CONFIG_FEATURE_SHARED_BUSYBOX - bool "Use shared libbusybox for busybox" - default n if BUSYBOX_CONFIG_BUILD_LIBBUSYBOX + bool "Produce additional busybox binary linked against libbusybox" + default n depends on !BUSYBOX_CONFIG_STATIC && BUSYBOX_CONFIG_BUILD_LIBBUSYBOX help - Use libbusybox.so also for busybox itself. - You need to have a working dynamic linker to use this variant. + Build busybox, dynamically linked against libbusybox.so.N.N.N. + + You need to have a working dynamic linker. + +### config BUILD_AT_ONCE +### bool "Compile all sources at once" +### default n +### help +### Normally each source-file is compiled with one invocation of +### the compiler. +### If you set this option, all sources are compiled at once. +### This gives the compiler more opportunities to optimize which can +### result in smaller and/or faster binaries. +### +### Setting this option will consume alot of memory, e.g. if you +### enable all applets with all features, gcc uses more than 300MB +### RAM during compilation of busybox. +### +### This option is most likely only beneficial for newer compilers +### such as gcc-4.1 and above. +### +### Say 'N' unless you know what you are doing. config BUSYBOX_CONFIG_LFS bool @@ -330,25 +369,6 @@ config BUSYBOX_CONFIG_LFS cp, mount, tar, and many others. If you want to access files larger than 2 Gigabytes, enable this option. Otherwise, leave it set to 'N'. -config BUSYBOX_CONFIG_BUILD_AT_ONCE - bool "Compile all sources at once" - default n - help - Normally each source-file is compiled with one invocation of - the compiler. - If you set this option, all sources are compiled at once. - This gives the compiler more opportunities to optimize which can - result in smaller and/or faster binaries. - - Setting this option will consume alot of memory, e.g. if you - enable all applets with all features, gcc uses more than 300MB - RAM during compilation of busybox. - - This option is most likely only beneficial for newer compilers - such as gcc-4.1 and above. - - Say 'N' unless you know what you are doing. - endmenu menu 'Debugging Options' @@ -464,6 +484,11 @@ config BUSYBOX_CONFIG_INSTALL_APPLET_HARDLINKS Install applets as hard-links to the busybox binary. This might count on a filesystem with few inodes. +config BUSYBOX_CONFIG_INSTALL_APPLET_SCRIPT_WRAPPERS + bool "as script wrappers" + help + Install applets as script wrappers that call the busybox binary. + config BUSYBOX_CONFIG_INSTALL_APPLET_DONT bool "not installed" depends on BUSYBOX_CONFIG_FEATURE_INSTALLER || BUSYBOX_CONFIG_FEATURE_SH_STANDALONE || BUSYBOX_CONFIG_FEATURE_PREFER_APPLETS @@ -473,6 +498,30 @@ config BUSYBOX_CONFIG_INSTALL_APPLET_DONT endchoice +choice + prompt "/bin/sh applet link" + default BUSYBOX_CONFIG_INSTALL_SH_APPLET_SYMLINK + depends on BUSYBOX_CONFIG_INSTALL_APPLET_SCRIPT_WRAPPERS + help + Choose how you install /bin/sh applet link. + +config BUSYBOX_CONFIG_INSTALL_SH_APPLET_SYMLINK + bool "as soft-link" + help + Install /bin/sh applet as soft-link to the busybox binary. + +config BUSYBOX_CONFIG_INSTALL_SH_APPLET_HARDLINK + bool "as hard-link" + help + Install /bin/sh applet as hard-link to the busybox binary. + +config BUSYBOX_CONFIG_INSTALL_SH_APPLET_SCRIPT_WRAPPER + bool "as script wrapper" + help + Install /bin/sh applet as script wrapper that call the busybox binary. + +endchoice + config BUSYBOX_CONFIG_PREFIX string "BusyBox installation prefix" default "./_install" |