move menuconfig options into separate files

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>



git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38895 3c298f89-4303-0410-b956-a3cf2f4a3e73

4 files changed, 923 insertions, 0 deletions

diff --git a/config/Config-build.in b/config/Config-build.in
new file mode 100644
index 0000000000..371ae7632a
--- /dev/null
+++ b/config/Config-build.in
@@ -0,0 +1,206 @@
+# Copyright (C) 2006-2013 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+menu "Global build settings"
+
+	config ALL
+		bool "Select all packages by default"
+		default n
+
+	comment "General build options"
+
+	config DISPLAY_SUPPORT
+		bool "Show packages that require graphics support (local or remote)"
+		default n
+
+	config BUILD_PATENTED
+		default y
+		bool "Compile with support for patented functionality"
+		help
+		  When this option is disabled, software which provides patented functionality will not be built.
+		  In case software provides optional support for patented functionality,
+		  this optional support will get disabled for this package.
+
+	config BUILD_NLS
+		default n
+		bool "Compile with full language support"
+		help
+		  When this option is enabled, packages are built with the full versions of iconv and GNU gettext
+		  instead of the default OpenWrt stubs. If uClibc is used, it is also built with locale support.
+
+	config BUILD_STATIC_TOOLS
+		default n
+		bool "Attempt to link host utilities statically"
+		help
+		  Linking host utilities like sed or firmware-utils statically increases the portability of the
+		  generated ImageBuilder and SDK tarballs, however it may fail on some Linux distributions.
+
+	config SHADOW_PASSWORDS
+		bool
+		prompt "Enable shadow password support"
+		default y
+		help
+		  Enable shadow password support.
+
+	config CLEAN_IPKG
+		bool
+		prompt "Remove ipkg/opkg status data files in final images"
+		default n
+		help
+		  This removes all ipkg/opkg status data files from the target directory before building the root fs
+
+	config COLLECT_KERNEL_DEBUG
+		bool
+		prompt "Collect kernel debug information"
+		select KERNEL_DEBUG_INFO
+		default n
+		help
+		  This collects debugging symbols from the kernel and all compiled modules.
+		  Useful for release builds, so that kernel issues can be debugged offline later.
+
+	comment "Kernel build options"
+
+	source "config/Config-kernel.in"
+
+	comment "Package build options"
+
+	config DEBUG
+		bool
+		prompt "Compile packages with debugging info"
+		default n
+		help
+		  Adds -g3 to the CFLAGS
+
+	config IPV6
+		bool
+		prompt "Enable IPv6 support in packages"
+		default y
+		help
+		  Enable IPV6 support in packages (passes --enable-ipv6 to configure scripts).
+
+	config PKG_BUILD_PARALLEL
+		bool
+		prompt "Compile certain packages parallelized"
+		default y
+		help
+		  This adds a -jX option to certain packages that are known to
+		  behave well for parallel build. By default the package make processes
+		  use the main jobserver, in which case this option only takes effect
+		  when you add -jX to the make command.
+
+		  If you are unsure, select N.
+
+	config PKG_BUILD_USE_JOBSERVER
+		bool
+		prompt "Use top-level make jobserver for packages"
+		depends on PKG_BUILD_PARALLEL
+		default y
+		help
+		  This passes the main make process jobserver fds to package builds,
+		  enabling full parallelization across different packages
+
+		  Note that disabling this may overcommit CPU resources depending on the
+		  -j level of the main make process, the number of package
+		  submake jobs selected below and the number of actual CPUs present.
+		  Example: If the main make is passed a -j4 and the submake -j
+		  is also set to 4, we may end up with 16 parallel make processes
+		  in the worst case.
+
+
+	config PKG_BUILD_JOBS
+		int
+		prompt "Number of package submake jobs (2-512)"
+		range 2 512
+		default 2
+		depends on PKG_BUILD_PARALLEL && !PKG_BUILD_USE_JOBSERVER
+		help
+		  The number of jobs (-jX) to pass to packages submake.
+
+	config PKG_DEFAULT_PARALLEL
+		bool
+		prompt "Parallelize the default package build rule (May break build)"
+		depends on PKG_BUILD_PARALLEL
+		depends on BROKEN
+		default n
+		help
+		  Always set the default package build rules to parallel build.
+
+		  WARNING: This may break build or kill your cat, as it builds
+		  packages with multiple jobs that are probably not tested in
+		  a parallel build environment.
+
+		  Only say Y, if you don't mind fixing broken packages.
+		  Before reporting build bugs, set this to N and re-run the build.
+
+	comment "Stripping options"
+
+	choice
+		prompt "Binary stripping method"
+		default USE_STRIP   if EXTERNAL_TOOLCHAIN
+		default USE_STRIP   if USE_GLIBC || USE_EGLIBC || USE_MUSL
+		default USE_SSTRIP
+		help
+		  Select the binary stripping method you wish to use.
+
+		config NO_STRIP
+			bool "none"
+			help
+			  This will install unstripped binaries (useful for native compiling/debugging)
+
+		config USE_STRIP
+			bool "strip"
+			help
+			  This will install binaries stripped using strip from binutils
+
+
+		config USE_SSTRIP
+			bool "sstrip"
+			depends on !DEBUG
+			depends on !USE_GLIBC
+			depends on !USE_EGLIBC
+			help
+			  This will install binaries stripped using sstrip
+	endchoice
+
+	config STRIP_ARGS
+		string
+		prompt "Strip arguments"
+		depends on USE_STRIP
+		default "--strip-unneeded --remove-section=.comment --remove-section=.note" if DEBUG
+		default "--strip-all"
+		help
+		  Specifies arguments passed to the strip command when stripping binaries
+
+	config STRIP_KERNEL_EXPORTS
+		bool "Strip unnecessary exports from the kernel image"
+		help
+		  Reduces kernel size by stripping unused kernel exports from the kernel image
+		  Note that this might make the kernel incompatible with any kernel modules that
+		  were not selected at the time the kernel image was created
+
+	config USE_MKLIBS
+		bool "Strip unnecessary functions from libraries"
+		help
+		  Reduces libraries to only those functions that are necessary for using all
+		  selected packages (including those selected as <M>)
+		  Note that this will make the system libraries incompatible with most of the packages
+		  that are not selected during the build process
+
+	choice
+		prompt "Preferred standard C++ library"
+		default USE_LIBSTDCXX if USE_EGLIBC
+		default USE_UCLIBCXX
+		help
+		  Select the preferred standard C++ library for all packages that support this.
+
+		config USE_UCLIBCXX
+			bool "uClibc++"
+
+		config USE_LIBSTDCXX
+			bool "libstdc++"
+	endchoice
+
+endmenu
diff --git a/config/Config-devel.in b/config/Config-devel.in
new file mode 100644
index 0000000000..5e5c857b42
--- /dev/null
+++ b/config/Config-devel.in
@@ -0,0 +1,90 @@
+# Copyright (C) 2006-2013 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+menuconfig DEVEL
+	bool "Advanced configuration options (for developers)"
+	default n
+
+	config BROKEN
+		bool "Show broken platforms / packages" if DEVEL
+		default n
+
+	config BINARY_FOLDER
+		string "Binary folder" if DEVEL
+		default ""
+
+	config DOWNLOAD_FOLDER
+		string "Download folder" if DEVEL
+		default ""
+
+	config LOCALMIRROR
+		string "Local mirror for source packages" if DEVEL
+		default ""
+
+	config AUTOREBUILD
+		bool "Automatic rebuild of packages" if DEVEL
+		default y
+		help
+		  Automatically rebuild packages when their files change
+
+	config BUILD_SUFFIX
+		string "Build suffix to append to the BUILD_DIR variable" if DEVEL
+		default ""
+		help
+		  Build suffix to append to the BUILD_DIR variable, i.e: build_dir_suffix
+
+	config TARGET_ROOTFS_DIR
+		string "Override the default TARGET_ROOTFS_DIR variable" if DEVEL
+		default ""
+		help
+		  Override the default TARGET_ROOTFS_DIR variable content $(BUILD_DIR) with custom path.
+		  Use this option to re-define the location of the target root file system directory.
+
+	config CCACHE
+		bool "Use ccache" if DEVEL
+		default n
+		help
+		  Compiler cache; see http://ccache.samba.org/
+
+	config EXTERNAL_KERNEL_TREE
+		string "Use external kernel tree" if DEVEL
+		default ""
+
+	config KERNEL_GIT_CLONE_URI
+		string "Enter git repository to clone" if DEVEL
+		default ""
+		help
+		  Enter the full git repository path i.e.:
+		  git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
+		  This will create a git clone of the kernel in your build
+		  directory.
+
+	config KERNEL_GIT_LOCAL_REPOSITORY
+		string "Enter path to local reference repository" if DEVEL
+		default ""
+		help
+		  Enter a full pathname to a local reference git repository.
+		  In this instance, the --refererence option of git clone will
+		  be used thus creating a quick local clone of your repo.
+
+	config BUILD_LOG
+		bool "Enable log files during build process" if DEVEL
+		help
+		  If enabled log files will be written to the ./log directory
+
+	config SRC_TREE_OVERRIDE
+		bool "Enable package source tree override" if DEVEL
+		help
+		  If enabled, you can force a package to use a git tree as source
+		  code instead of the normal tarball. Create a symlink 'git-src'
+		  in the package directory, pointing to the .git tree that you want
+		  to pull the source code from
+
+	config EXTRA_OPTIMIZATION
+		string "Additional compiler options" if DEVEL
+		default "-fno-caller-saves"
+		help
+		  Extra Target-independent optimizations to use when building for the target.
diff --git a/config/Config-images.in b/config/Config-images.in
new file mode 100644
index 0000000000..a744fc7317
--- /dev/null
+++ b/config/Config-images.in
@@ -0,0 +1,201 @@
+# Copyright (C) 2006-2013 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+menu "Target Images"
+
+	menuconfig TARGET_ROOTFS_INITRAMFS
+		bool "ramdisk"
+		default y if USES_INITRAMFS
+		help
+		  Embed the rootfs into the kernel (initramfs)
+
+		choice
+			prompt "Compression"
+			default TARGET_INITRAMFS_COMPRESSION_LZMA if TARGET_ar71xx
+			default TARGET_INITRAMFS_COMPRESSION_LZMA if TARGET_ramips
+			default TARGET_INITRAMFS_COMPRESSION_NONE
+			depends on TARGET_ROOTFS_INITRAMFS
+			help
+			  Select ramdisk compression.
+
+			config TARGET_INITRAMFS_COMPRESSION_NONE
+				bool "none"
+
+			config TARGET_INITRAMFS_COMPRESSION_GZIP
+				bool "gzip"
+
+			config TARGET_INITRAMFS_COMPRESSION_BZIP2
+				bool "bzip2"
+
+			config TARGET_INITRAMFS_COMPRESSION_LZMA
+				bool "lzma"
+
+			config TARGET_INITRAMFS_COMPRESSION_LZO
+				bool "lzo"
+
+			config TARGET_INITRAMFS_COMPRESSION_LZ4
+				bool "lz4"
+
+			config TARGET_INITRAMFS_COMPRESSION_XZ
+				bool "xz"
+		endchoice
+
+		config EXTERNAL_CPIO
+			string
+			prompt "Use external cpio" if TARGET_ROOTFS_INITRAMFS
+			default ""
+			help
+			  Kernel uses specified external cpio as INITRAMFS_SOURCE
+
+	comment "Root filesystem archives"
+
+	config TARGET_ROOTFS_CPIOGZ
+		bool "cpio.gz"
+		default y if USES_CPIOGZ
+		help
+		  Build a compressed cpio archive of the the root filesystem
+
+	config TARGET_ROOTFS_TARGZ
+		bool "tar.gz"
+		default y if USES_TARGZ
+		help
+		  Build a compressed tar archive of the the root filesystem
+
+	comment "Root filesystem images"
+
+	config TARGET_ROOTFS_EXT4FS
+		bool "ext4"
+		default y if USES_EXT4
+		help
+		  Ext4 file system with some free space for uml images
+
+	config TARGET_ROOTFS_ISO
+		bool "iso"
+		default n
+		depends on TARGET_x86_generic
+		help
+		  Create some bootable ISO image
+
+	config TARGET_ROOTFS_JFFS2
+		bool "jffs2"
+		default y if USES_JFFS2
+		help
+		  Build a jffs2 root filesystem
+
+	config TARGET_ROOTFS_JFFS2_NAND
+		bool "jffs2 for NAND"
+		default y if USES_JFFS2_NAND
+		depends on USES_JFFS2_NAND
+		help
+		  Build a jffs2 root filesystem for NAND flash
+
+	config TARGET_ROOTFS_SQUASHFS
+		bool "squashfs"
+		default y if USES_SQUASHFS
+		help
+		  Build a squashfs-lzma root filesystem
+
+	menuconfig TARGET_ROOTFS_UBIFS
+		bool "ubifs"
+		default y if USES_UBIFS
+		depends on USES_UBIFS
+		help
+		  Build a ubifs root filesystem
+
+		choice
+			prompt "compression"
+			default TARGET_UBIFS_COMPRESSION_NONE
+			depends on TARGET_ROOTFS_UBIFS
+			help
+			  Select compression type
+
+			config TARGET_UBIFS_COMPRESSION_NONE
+				bool "none"
+
+			config TARGET_UBIFS_COMPRESSION_LZO
+				bool "lzo"
+
+			config TARGET_UBIFS_COMPRESSION_ZLIB
+				bool "zlib"
+		endchoice
+
+		config TARGET_UBIFS_FREE_SPACE_FIXUP
+			bool "free space fixup" if TARGET_ROOTFS_UBIFS
+			default y
+			help
+			  The file-system free space has to be fixed up on first mount
+
+		config TARGET_UBIFS_JOURNAL_SIZE
+			string
+			prompt "journal size" if TARGET_ROOTFS_UBIFS
+			default ""
+
+	comment "Image Options"
+
+	source "target/linux/*/image/Config.in"
+
+	config TARGET_ROOTFS_PARTSIZE
+		int "Root filesystem partition size (in MB)"
+		depends on X86_GRUB_IMAGES || TARGET_ROOTFS_EXT4FS || TARGET_rb532
+		default 48
+		help
+		  Allows you to change the root filesystem partition size
+
+	config TARGET_ROOTFS_MAXINODE
+		int "Maximum number of inodes in root filesystem"
+		depends on TARGET_ROOTFS_EXT4FS
+		default 6000
+		help
+		  Allows you to change the maximum number of inodes in the root filesystem
+
+	config TARGET_ROOTFS_RESERVED_PCT
+		int "Percentage of reserved blocks in root filesystem"
+		depends on TARGET_ROOTFS_EXT4FS
+		default 0
+		help
+		  Allows you to change the percentage of reserved blocks in the root filesystem
+
+	menuconfig TARGET_ROOTFS_INCLUDE_KERNEL
+		bool "Include kernel in root filesystem"
+		depends on TARGET_ROOTFS_UBIFS || TARGET_ROOTFS_EXT4FS
+		default n
+		help
+		  Include the kernel image in the rootfs. Typically the image is placed
+		  below /boot.
+
+		config TARGET_ROOTFS_INCLUDE_UIMAGE
+			bool "include uImage" if TARGET_ROOTFS_INCLUDE_KERNEL
+			default y
+			help
+			  This option might not apply to all targets. Make sure
+			  to check target/linux/<your_target>/image/Makefile to
+			  see if this option will have any effect.
+
+		config TARGET_ROOTFS_INCLUDE_ZIMAGE
+			bool "include zImage" if TARGET_ROOTFS_INCLUDE_KERNEL
+			default y
+			help
+			  This option might not apply to all targets. Make sure
+			  to check target/linux/<your_target>/image/Makefile to
+			  see if this option will have any effect.
+
+		config TARGET_ROOTFS_INCLUDE_FIT
+			bool "include FIT" if TARGET_ROOTFS_INCLUDE_KERNEL
+			default y
+			help
+			  This option might not apply to all targets. Make sure
+			  to check target/linux/<your_target>/image/Makefile to
+			  see if this option will have any effect.
+
+	config TARGET_ROOTFS_INCLUDE_DTB
+		bool "Include DTB in root filesystem"
+		depends on USES_DEVICETREE && (TARGET_ROOTFS_UBIFS || TARGET_ROOTFS_EXT4FS)
+		default n
+		help
+		  Include the device tree blob file(s) in the rootfs. Typically the DTBs
+		  are placed below /boot.
+
+endmenu
diff --git a/config/Config-kernel.in b/config/Config-kernel.in
new file mode 100644
index 0000000000..d5b565ea5e
--- /dev/null
+++ b/config/Config-kernel.in
@@ -0,0 +1,426 @@
+# Copyright (C) 2006-2013 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+config KERNEL_DEBUG_FS
+	bool "Compile the kernel with Debug FileSystem enabled"
+	default y
+	help
+	  debugfs is a virtual file system that kernel developers use to put
+	  debugging files into. Enable this option to be able to read and
+	  write to these files.
+
+config KERNEL_PERF_EVENTS
+	bool
+	default n
+
+config KERNEL_PROFILING
+	bool "Compile the kernel with profiling enabled"
+	default n
+	select KERNEL_PERF_EVENTS
+	help
+	  Enable the extended profiling support mechanisms used by profilers such
+	  as OProfile.
+
+config KERNEL_KALLSYMS
+	bool "Compile the kernel with symbol table information"
+	default y
+	help
+	  This will give you more information in stack traces from kernel oopses
+
+config KERNEL_FTRACE
+	bool "Compile the kernel with tracing support"
+	default n
+
+config KERNEL_FTRACE_SYSCALLS
+	bool "Trace system calls"
+	depends on KERNEL_FTRACE
+	default n
+
+config KERNEL_ENABLE_DEFAULT_TRACERS
+	bool "Trace process context switches and events"
+	depends on KERNEL_FTRACE
+	default n
+
+config KERNEL_DEBUG_KERNEL
+	bool
+	default n
+
+config KERNEL_DEBUG_INFO
+	bool "Compile the kernel with debug information"
+	default y
+	select KERNEL_DEBUG_KERNEL
+	help
+	  This will compile your kernel and modules with debug information.
+
+config KERNEL_DEBUG_LL_UART_NONE
+	bool
+	default n
+	depends on arm
+
+config KERNEL_DEBUG_LL
+	bool
+	default n
+	depends on arm
+	select KERNEL_DEBUG_LL_UART_NONE
+	help
+	  ARM low level debugging
+
+config KERNEL_EARLY_PRINTK
+	bool "Compile the kernel with early printk"
+	default n
+	depends on arm
+	select KERNEL_DEBUG_KERNEL
+	select KERNEL_DEBUG_LL if arm
+	help
+	  Compile the kernel with early printk support.
+	  This is only useful for debugging purposes to send messages
+	  over the serial console in early boot.
+	  Enable this to debug early boot problems.
+
+config KERNEL_AIO
+	bool "Compile the kernel with asynchronous IO support"
+	default n
+
+config KERNEL_DIRECT_IO
+	bool "Compile the kernel with direct IO support"
+	default n
+
+config KERNEL_MAGIC_SYSRQ
+	bool "Compile the kernel with SysRq support"
+	default y
+
+config KERNEL_COREDUMP
+	bool
+
+config KERNEL_ELF_CORE
+	bool "Enable process core dump support"
+	select KERNEL_COREDUMP
+	default y
+
+config KERNEL_PROVE_LOCKING
+	bool "Enable kernel lock checking"
+	select KERNEL_DEBUG_KERNEL
+	default n
+
+config KERNEL_PRINTK_TIME
+	bool "Enable printk timestamps"
+	default y
+
+config KERNEL_RELAY
+	bool
+
+config KERNEL_KEXEC
+	bool "Enable kexec support"
+
+config USE_RFKILL
+	bool "Enable rfkill support"
+	default RFKILL_SUPPORT
+
+#
+# CGROUP support symbols
+#
+
+config KERNEL_CGROUPS
+	bool "Enable kernel cgroups"
+	default n
+
+if KERNEL_CGROUPS
+
+	config KERNEL_CGROUP_DEBUG
+		bool "Example debug cgroup subsystem"
+		default n
+		help
+		  This option enables a simple cgroup subsystem that
+		  exports useful debugging information about the cgroups
+		  framework.
+
+	config KERNEL_FREEZER
+		bool
+		default y if KERNEL_CGROUP_FREEZER
+
+	config KERNEL_CGROUP_FREEZER
+		bool "Freezer cgroup subsystem"
+		default n
+		help
+		  Provides a way to freeze and unfreeze all tasks in a
+		  cgroup.
+
+	config KERNEL_CGROUP_DEVICE
+		bool "Device controller for cgroups"
+		default y
+		help
+		  Provides a cgroup implementing whitelists for devices which
+		  a process in the cgroup can mknod or open.
+
+	config KERNEL_CPUSETS
+		bool "Cpuset support"
+		default n
+		help
+		  This option will let you create and manage CPUSETs which
+		  allow dynamically partitioning a system into sets of CPUs and
+		  Memory Nodes and assigning tasks to run only within those sets.
+		  This is primarily useful on large SMP or NUMA systems.
+
+	config KERNEL_PROC_PID_CPUSET
+		bool "Include legacy /proc/<pid>/cpuset file"
+		default n
+		depends on KERNEL_CPUSETS
+
+	config KERNEL_CGROUP_CPUACCT
+		bool "Simple CPU accounting cgroup subsystem"
+		default n
+		help
+		  Provides a simple Resource Controller for monitoring the
+		  total CPU consumed by the tasks in a cgroup.
+
+	config KERNEL_RESOURCE_COUNTERS
+		bool "Resource counters"
+		default n
+		help
+		  This option enables controller independent resource accounting
+		  infrastructure that works with cgroups.
+
+	config KERNEL_MM_OWNER
+		bool
+		default y if KERNEL_MEMCG
+
+	config KERNEL_MEMCG
+		bool "Memory Resource Controller for Control Groups"
+		default n
+		depends on KERNEL_RESOURCE_COUNTERS
+		help
+		  Provides a memory resource controller that manages both anonymous
+		  memory and page cache. (See Documentation/cgroups/memory.txt)
+
+		  Note that setting this option increases fixed memory overhead
+		  associated with each page of memory in the system. By this,
+		  20(40)bytes/PAGE_SIZE on 32(64)bit system will be occupied by memory
+		  usage tracking struct at boot. Total amount of this is printed out
+		  at boot.
+
+		  Only enable when you're ok with these trade offs and really
+		  sure you need the memory resource controller. Even when you enable
+		  this, you can set "cgroup_disable=memory" at your boot option to
+		  disable memory resource controller and you can avoid overheads.
+		  (and lose benefits of memory resource controller)
+
+		  This config option also selects MM_OWNER config option, which
+		  could in turn add some fork/exit overhead.
+
+	config KERNEL_MEMCG_SWAP
+		bool "Memory Resource Controller Swap Extension"
+		default n
+		depends on KERNEL_MEMCG
+		help
+		  Add swap management feature to memory resource controller. When you
+		  enable this, you can limit mem+swap usage per cgroup. In other words,
+		  when you disable this, memory resource controller has no cares to
+		  usage of swap...a process can exhaust all of the swap. This extension
+		  is useful when you want to avoid exhaustion swap but this itself
+		  adds more overheads and consumes memory for remembering information.
+		  Especially if you use 32bit system or small memory system, please
+		  be careful about enabling this. When memory resource controller
+		  is disabled by boot option, this will be automatically disabled and
+		  there will be no overhead from this. Even when you set this config=y,
+		  if boot option "swapaccount=0" is set, swap will not be accounted.
+		  Now, memory usage of swap_cgroup is 2 bytes per entry. If swap page
+		  size is 4096bytes, 512k per 1Gbytes of swap.
+
+	config KERNEL_MEMCG_SWAP_ENABLED
+		bool "Memory Resource Controller Swap Extension enabled by default"
+		default n
+		depends on KERNEL_MEMCG_SWAP
+		help
+		  Memory Resource Controller Swap Extension comes with its price in
+		  a bigger memory consumption. General purpose distribution kernels
+		  which want to enable the feature but keep it disabled by default
+		  and let the user enable it by swapaccount boot command line
+		  parameter should have this option unselected.
+		  For those who want to have the feature enabled by default should
+		  select this option (if, for some reason, they need to disable it
+		  then swapaccount=0 does the trick).
+
+
+	config KERNEL_MEMCG_KMEM
+		bool "Memory Resource Controller Kernel Memory accounting (EXPERIMENTAL)"
+		default n
+		depends on KERNEL_MEMCG
+		help
+		  The Kernel Memory extension for Memory Resource Controller can limit
+		  the amount of memory used by kernel objects in the system. Those are
+		  fundamentally different from the entities handled by the standard
+		  Memory Controller, which are page-based, and can be swapped. Users of
+		  the kmem extension can use it to guarantee that no group of processes
+		  will ever exhaust kernel resources alone.
+
+	config KERNEL_PERF_EVENTS
+		bool
+		default y if KERNEL_CGROUP_PERF
+
+	config KERNEL_CGROUP_PERF
+		bool "Enable perf_event per-cpu per-container group (cgroup) monitoring"
+		default n
+		help
+		  This option extends the per-cpu mode to restrict monitoring to
+		  threads which belong to the cgroup specified and run on the
+		  designated cpu.
+
+	menuconfig KERNEL_CGROUP_SCHED
+		bool "Group CPU scheduler"
+		default n
+		help
+		  This feature lets CPU scheduler recognize task groups and control CPU
+		  bandwidth allocation to such task groups. It uses cgroups to group
+		  tasks.
+
+	if KERNEL_CGROUP_SCHED
+
+		config KERNEL_FAIR_GROUP_SCHED
+			bool "Group scheduling for SCHED_OTHER"
+			default n
+
+		config KERNEL_CFS_BANDWIDTH
+			bool "CPU bandwidth provisioning for FAIR_GROUP_SCHED"
+			default n
+			depends on KERNEL_FAIR_GROUP_SCHED
+			help
+			  This option allows users to define CPU bandwidth rates (limits) for
+			  tasks running within the fair group scheduler.  Groups with no limit
+			  set are considered to be unconstrained and will run with no
+			  restriction.
+			  See tip/Documentation/scheduler/sched-bwc.txt for more information.
+
+		config KERNEL_RT_GROUP_SCHED
+			bool "Group scheduling for SCHED_RR/FIFO"
+			default n
+			help
+			  This feature lets you explicitly allocate real CPU bandwidth
+			  to task groups. If enabled, it will also make it impossible to
+			  schedule realtime tasks for non-root users until you allocate
+			  realtime bandwidth for them.
+
+	endif
+
+	config KERNEL_BLK_CGROUP
+		bool "Block IO controller"
+		default y
+		help
+		  Generic block IO controller cgroup interface. This is the common
+		  cgroup interface which should be used by various IO controlling
+		  policies.
+
+		  Currently, CFQ IO scheduler uses it to recognize task groups and
+		  control disk bandwidth allocation (proportional time slice allocation)
+		  to such task groups. It is also used by bio throttling logic in
+		  block layer to implement upper limit in IO rates on a device.
+
+		  This option only enables generic Block IO controller infrastructure.
+		  One needs to also enable actual IO controlling logic/policy. For
+		  enabling proportional weight division of disk bandwidth in CFQ, set
+		  CONFIG_CFQ_GROUP_IOSCHED=y; for enabling throttling policy, set
+		  CONFIG_BLK_DEV_THROTTLING=y.
+
+	config KERNEL_DEBUG_BLK_CGROUP
+		bool "Enable Block IO controller debugging"
+		default n
+		depends on KERNEL_BLK_CGROUP
+		help
+		  Enable some debugging help. Currently it exports additional stat
+		  files in a cgroup which can be useful for debugging.
+
+	config KERNEL_NET_CLS_CGROUP
+		bool "Control Group Classifier"
+		default y
+
+	config KERNEL_NETPRIO_CGROUP
+		bool "Network priority cgroup"
+		default y
+
+endif
+
+#
+# Namespace support symbols
+#
+
+config KERNEL_NAMESPACES
+	bool "Enable kernel namespaces"
+	default n
+
+if KERNEL_NAMESPACES
+
+	config KERNEL_UTS_NS
+		bool "UTS namespace"
+		default y
+		help
+		  In this namespace tasks see different info provided
+		  with the uname() system call
+
+	config KERNEL_IPC_NS
+		bool "IPC namespace"
+		default y
+		help
+		  In this namespace tasks work with IPC ids which correspond to
+		  different IPC objects in different namespaces.
+
+	config KERNEL_USER_NS
+		bool "User namespace (EXPERIMENTAL)"
+		default y
+		help
+		  This allows containers, i.e. vservers, to use user namespaces
+		  to provide different user info for different servers.
+
+	config KERNEL_PID_NS
+		bool "PID Namespaces"
+		default y
+		help
+		  Support process id namespaces. This allows having multiple
+		  processes with the same pid as long as they are in different
+		  pid namespaces. This is a building block of containers.
+
+	config KERNEL_NET_NS
+		bool "Network namespace"
+		default y
+		help
+		  Allow user space to create what appear to be multiple instances
+		  of the network stack.
+
+endif
+
+#
+# LXC related symbols
+#
+
+config KERNEL_LXC_MISC
+	bool "Enable miscellaneous LXC related options"
+	default n
+
+if KERNEL_LXC_MISC
+
+	config KERNEL_DEVPTS_MULTIPLE_INSTANCES
+		bool "Support multiple instances of devpts"
+		default y
+		help
+		  Enable support for multiple instances of devpts filesystem.
+		  If you want to have isolated PTY namespaces (eg: in containers),
+		  say Y here. Otherwise, say N. If enabled, each mount of devpts
+		  filesystem with the '-o newinstance' option will create an
+		  independent PTY namespace.
+
+	config KERNEL_POSIX_MQUEUE
+		bool "POSIX Message Queues"
+		default n
+		help
+		  POSIX variant of message queues is a part of IPC. In POSIX message
+		  queues every message has a priority which decides about succession
+		  of receiving it by a process. If you want to compile and run
+		  programs written e.g. for Solaris with use of its POSIX message
+		  queues (functions mq_*) say Y here.
+
+		  POSIX message queues are visible as a filesystem called 'mqueue'
+		  and can be mounted somewhere if you want to do filesystem
+		  operations on message queues.
+
+endif