openwrt/Config.in

# Copyright (C) 2006-2012 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#

mainmenu "OpenWrt Configuration"

config MODULES
	bool
	default y

config HAVE_DOT_CONFIG
	bool
	default y

source "target/Config.in"

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_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
		depends on !TARGET_ROOTFS_INITRAMFS
		help
		  Ext4 file system with some free space for uml images

	config TARGET_ROOTFS_ISO
		bool "iso"
		default n
		depends on TARGET_x86_generic
		depends on !TARGET_ROOTFS_INITRAMFS
		help
		  Create some bootable ISO image

	config TARGET_ROOTFS_JFFS2
		bool "jffs2"
		default y if USES_JFFS2
		depends on !TARGET_ROOTFS_INITRAMFS
		help
		  Build a jffs2 root filesystem

	config TARGET_ROOTFS_SQUASHFS
		bool "squashfs"
		default y if USES_SQUASHFS
		depends on !TARGET_ROOTFS_INITRAMFS
		help
		  Build a squashfs-lzma root filesystem

	config TARGET_ROOTFS_UBIFS
		bool "ubifs"
		default y if USES_UBIFS
		depends on !TARGET_ROOTFS_INITRAMFS && USES_UBIFS
		help
		  Build a ubifs root filesystem

	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

endmenu

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"

	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_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

	#
	# 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.

		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.

	endif

	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

menuconfig DEVEL
	bool "Advanced configuration options (for developers)"
	default n

	config BROKEN
		bool "Show broken platforms / packages" if DEVEL
		default n

	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

menuconfig TARGET_OPTIONS
	bool "Target Options"  if DEVEL

	config TARGET_OPTIMIZATION
		string "Target Optimizations" if TARGET_OPTIONS
		default DEFAULT_TARGET_OPTIMIZATION
		help
		  Optimizations to use when building for the target host.

	config SOFT_FLOAT
		bool "Use software floating point by default" if TARGET_OPTIONS
		default y
		depends on (arm || armeb || powerpc || mipsel || mips || mips64el || mips64) && !HAS_FPU
		help
		  If your target CPU does not have a Floating Point Unit (FPU) or a
		  kernel FPU emulator, but you still wish to support floating point
		  functions, then everything will need to be compiled with soft floating
		  point support (-msoft-float).

		  Most people will answer N.

	config USE_MIPS16
		bool "Build packages with MIPS16 instructions" if TARGET_OPTIONS
		depends on HAS_MIPS16
		help
		  If your target CPU does support the MIPS16 instruction set
		  and you want to use it for packages, enable this option.
		  MIPS16 produces smaller binaries thus reducing pressure on
		  caches and TLB.

		  Most people will answer N.

source "toolchain/Config.in"

source "target/imagebuilder/Config.in"
source "target/sdk/Config.in"
source "target/toolchain/Config.in"

source "tmp/.config-package.in"