874 lines
24 KiB
Plaintext
874 lines
24 KiB
Plaintext
# Copyright (C) 2006-2012 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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mainmenu "OpenWrt Configuration"
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config MODULES
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bool
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default y
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config HAVE_DOT_CONFIG
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bool
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default y
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source "target/Config.in"
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menu "Target Images"
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menuconfig TARGET_ROOTFS_INITRAMFS
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bool "ramdisk"
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default y if USES_INITRAMFS
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help
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Embed the rootfs into the kernel (initramfs)
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choice
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prompt "Compression"
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default TARGET_INITRAMFS_COMPRESSION_LZMA if TARGET_ar71xx
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default TARGET_INITRAMFS_COMPRESSION_LZMA if TARGET_ramips
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default TARGET_INITRAMFS_COMPRESSION_NONE
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depends on TARGET_ROOTFS_INITRAMFS
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help
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Select ramdisk compression.
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config TARGET_INITRAMFS_COMPRESSION_NONE
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bool "none"
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config TARGET_INITRAMFS_COMPRESSION_GZIP
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bool "gzip"
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config TARGET_INITRAMFS_COMPRESSION_BZIP2
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bool "bzip2"
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config TARGET_INITRAMFS_COMPRESSION_LZMA
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bool "lzma"
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config TARGET_INITRAMFS_COMPRESSION_LZO
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bool "lzo"
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config TARGET_INITRAMFS_COMPRESSION_XZ
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bool "xz"
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endchoice
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config EXTERNAL_CPIO
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string
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prompt "Use external cpio" if TARGET_ROOTFS_INITRAMFS
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default ""
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help
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Kernel uses specified external cpio as INITRAMFS_SOURCE
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comment "Root filesystem archives"
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config TARGET_ROOTFS_CPIOGZ
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bool "cpio.gz"
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default y if USES_CPIOGZ
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help
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Build a compressed cpio archive of the the root filesystem
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config TARGET_ROOTFS_TARGZ
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bool "tar.gz"
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default y if USES_TARGZ
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help
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Build a compressed tar archive of the the root filesystem
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comment "Root filesystem images"
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config TARGET_ROOTFS_EXT4FS
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bool "ext4"
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default y if USES_EXT4
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help
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Ext4 file system with some free space for uml images
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config TARGET_ROOTFS_ISO
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bool "iso"
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default n
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depends on TARGET_x86_generic
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help
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Create some bootable ISO image
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config TARGET_ROOTFS_JFFS2
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bool "jffs2"
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default y if USES_JFFS2
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help
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Build a jffs2 root filesystem
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config TARGET_ROOTFS_JFFS2_NAND
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bool "jffs2 for NAND"
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default y if USES_JFFS2_NAND
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depends on USES_JFFS2_NAND
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help
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Build a jffs2 root filesystem for NAND flash
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config TARGET_ROOTFS_SQUASHFS
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bool "squashfs"
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default y if USES_SQUASHFS
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help
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Build a squashfs-lzma root filesystem
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config TARGET_ROOTFS_UBIFS
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bool "ubifs"
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default y if USES_UBIFS
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depends on USES_UBIFS
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help
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Build a ubifs root filesystem
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comment "Image Options"
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source "target/linux/*/image/Config.in"
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config TARGET_ROOTFS_PARTSIZE
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int "Root filesystem partition size (in MB)"
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depends on X86_GRUB_IMAGES || TARGET_ROOTFS_EXT4FS || TARGET_rb532
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default 48
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help
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Allows you to change the root filesystem partition size
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config TARGET_ROOTFS_MAXINODE
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int "Maximum number of inodes in root filesystem"
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depends on TARGET_ROOTFS_EXT4FS
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default 6000
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help
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Allows you to change the maximum number of inodes in the root filesystem
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config TARGET_ROOTFS_RESERVED_PCT
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int "Percentage of reserved blocks in root filesystem"
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depends on TARGET_ROOTFS_EXT4FS
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default 0
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help
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Allows you to change the percentage of reserved blocks in the root filesystem
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endmenu
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menu "Global build settings"
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config ALL
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bool "Select all packages by default"
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default n
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comment "General build options"
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config DISPLAY_SUPPORT
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bool "Show packages that require graphics support (local or remote)"
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default n
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config BUILD_PATENTED
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default y
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bool "Compile with support for patented functionality"
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help
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When this option is disabled, software which provides patented functionality will not be built.
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In case software provides optional support for patented functionality,
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this optional support will get disabled for this package.
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config BUILD_NLS
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default n
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bool "Compile with full language support"
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help
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When this option is enabled, packages are built with the full versions of iconv and GNU gettext
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instead of the default OpenWrt stubs. If uClibc is used, it is also built with locale support.
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config BUILD_STATIC_TOOLS
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default n
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bool "Attempt to link host utilities statically"
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help
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Linking host utilities like sed or firmware-utils statically increases the portability of the
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generated ImageBuilder and SDK tarballs, however it may fail on some Linux distributions.
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config SHADOW_PASSWORDS
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bool
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prompt "Enable shadow password support"
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default y
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help
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Enable shadow password support.
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config CLEAN_IPKG
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bool
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prompt "Remove ipkg/opkg status data files in final images"
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default n
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help
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This removes all ipkg/opkg status data files from the target directory before building the root fs
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config COLLECT_KERNEL_DEBUG
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bool
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prompt "Collect kernel debug information"
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select KERNEL_DEBUG_INFO
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default n
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help
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This collects debugging symbols from the kernel and all compiled modules.
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Useful for release builds, so that kernel issues can be debugged offline later.
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comment "Kernel build options"
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config KERNEL_DEBUG_FS
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bool "Compile the kernel with Debug FileSystem enabled"
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default y
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help
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debugfs is a virtual file system that kernel developers use to put
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debugging files into. Enable this option to be able to read and
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write to these files.
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config KERNEL_PERF_EVENTS
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bool
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default n
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config KERNEL_PROFILING
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bool "Compile the kernel with profiling enabled"
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default n
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select KERNEL_PERF_EVENTS
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help
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Enable the extended profiling support mechanisms used by profilers such
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as OProfile.
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config KERNEL_KALLSYMS
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bool "Compile the kernel with symbol table information"
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default y
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help
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This will give you more information in stack traces from kernel oopses
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config KERNEL_FTRACE
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bool "Compile the kernel with tracing support"
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default n
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config KERNEL_FTRACE_SYSCALLS
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bool "Trace system calls"
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depends on KERNEL_FTRACE
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default n
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config KERNEL_ENABLE_DEFAULT_TRACERS
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bool "Trace process context switches and events"
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depends on KERNEL_FTRACE
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default n
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config KERNEL_DEBUG_KERNEL
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bool
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default n
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config KERNEL_DEBUG_INFO
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bool "Compile the kernel with debug information"
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default y
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select KERNEL_DEBUG_KERNEL
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help
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This will compile your kernel and modules with debug information.
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config KERNEL_DEBUG_LL_UART_NONE
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bool
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default n
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depends on arm
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config KERNEL_DEBUG_LL
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bool
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default n
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depends on arm
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select KERNEL_DEBUG_LL_UART_NONE
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help
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ARM low level debugging
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config KERNEL_EARLY_PRINTK
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bool "Compile the kernel with early printk"
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default n
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depends on arm
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select KERNEL_DEBUG_KERNEL
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select KERNEL_DEBUG_LL if arm
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help
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Compile the kernel with early printk support.
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This is only useful for debugging purposes to send messages
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over the serial console in early boot.
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Enable this to debug early boot problems.
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config KERNEL_AIO
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bool "Compile the kernel with asynchronous IO support"
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default n
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config KERNEL_DIRECT_IO
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bool "Compile the kernel with direct IO support"
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default n
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config KERNEL_MAGIC_SYSRQ
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bool "Compile the kernel with SysRq support"
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default y
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config KERNEL_COREDUMP
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bool
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config KERNEL_ELF_CORE
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bool "Enable process core dump support"
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select KERNEL_COREDUMP
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default y
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config KERNEL_PROVE_LOCKING
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bool "Enable kernel lock checking"
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select KERNEL_DEBUG_KERNEL
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default n
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config KERNEL_PRINTK_TIME
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bool "Enable printk timestamps"
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default y
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config KERNEL_RELAY
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bool
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config KERNEL_KEXEC
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bool "Enable kexec support"
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#
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# CGROUP support symbols
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#
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config KERNEL_CGROUPS
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bool "Enable kernel cgroups"
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default n
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if KERNEL_CGROUPS
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config KERNEL_CGROUP_DEBUG
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bool "Example debug cgroup subsystem"
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default n
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help
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This option enables a simple cgroup subsystem that
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exports useful debugging information about the cgroups
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framework.
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config KERNEL_FREEZER
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bool
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default y if KERNEL_CGROUP_FREEZER
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config KERNEL_CGROUP_FREEZER
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bool "Freezer cgroup subsystem"
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default n
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help
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Provides a way to freeze and unfreeze all tasks in a
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cgroup.
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config KERNEL_CGROUP_DEVICE
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bool "Device controller for cgroups"
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default y
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help
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Provides a cgroup implementing whitelists for devices which
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a process in the cgroup can mknod or open.
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config KERNEL_CPUSETS
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bool "Cpuset support"
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default n
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help
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This option will let you create and manage CPUSETs which
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allow dynamically partitioning a system into sets of CPUs and
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Memory Nodes and assigning tasks to run only within those sets.
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This is primarily useful on large SMP or NUMA systems.
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config KERNEL_PROC_PID_CPUSET
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bool "Include legacy /proc/<pid>/cpuset file"
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default n
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depends on KERNEL_CPUSETS
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config KERNEL_CGROUP_CPUACCT
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bool "Simple CPU accounting cgroup subsystem"
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default n
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help
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Provides a simple Resource Controller for monitoring the
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total CPU consumed by the tasks in a cgroup.
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config KERNEL_RESOURCE_COUNTERS
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bool "Resource counters"
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default n
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help
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This option enables controller independent resource accounting
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infrastructure that works with cgroups.
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config KERNEL_MM_OWNER
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bool
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default y if KERNEL_MEMCG
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config KERNEL_MEMCG
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bool "Memory Resource Controller for Control Groups"
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default n
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depends on KERNEL_RESOURCE_COUNTERS
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help
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Provides a memory resource controller that manages both anonymous
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memory and page cache. (See Documentation/cgroups/memory.txt)
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Note that setting this option increases fixed memory overhead
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associated with each page of memory in the system. By this,
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20(40)bytes/PAGE_SIZE on 32(64)bit system will be occupied by memory
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usage tracking struct at boot. Total amount of this is printed out
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at boot.
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Only enable when you're ok with these trade offs and really
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sure you need the memory resource controller. Even when you enable
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this, you can set "cgroup_disable=memory" at your boot option to
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disable memory resource controller and you can avoid overheads.
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(and lose benefits of memory resource controller)
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This config option also selects MM_OWNER config option, which
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could in turn add some fork/exit overhead.
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config KERNEL_MEMCG_SWAP
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bool "Memory Resource Controller Swap Extension"
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default n
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depends on KERNEL_MEMCG
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help
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Add swap management feature to memory resource controller. When you
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enable this, you can limit mem+swap usage per cgroup. In other words,
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when you disable this, memory resource controller has no cares to
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usage of swap...a process can exhaust all of the swap. This extension
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is useful when you want to avoid exhaustion swap but this itself
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adds more overheads and consumes memory for remembering information.
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Especially if you use 32bit system or small memory system, please
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be careful about enabling this. When memory resource controller
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is disabled by boot option, this will be automatically disabled and
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there will be no overhead from this. Even when you set this config=y,
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if boot option "swapaccount=0" is set, swap will not be accounted.
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Now, memory usage of swap_cgroup is 2 bytes per entry. If swap page
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size is 4096bytes, 512k per 1Gbytes of swap.
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config KERNEL_MEMCG_SWAP_ENABLED
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bool "Memory Resource Controller Swap Extension enabled by default"
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default n
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depends on KERNEL_MEMCG_SWAP
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help
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Memory Resource Controller Swap Extension comes with its price in
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a bigger memory consumption. General purpose distribution kernels
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which want to enable the feature but keep it disabled by default
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and let the user enable it by swapaccount boot command line
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parameter should have this option unselected.
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For those who want to have the feature enabled by default should
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select this option (if, for some reason, they need to disable it
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then swapaccount=0 does the trick).
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config KERNEL_MEMCG_KMEM
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bool "Memory Resource Controller Kernel Memory accounting (EXPERIMENTAL)"
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default n
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depends on KERNEL_MEMCG
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help
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The Kernel Memory extension for Memory Resource Controller can limit
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the amount of memory used by kernel objects in the system. Those are
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fundamentally different from the entities handled by the standard
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Memory Controller, which are page-based, and can be swapped. Users of
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the kmem extension can use it to guarantee that no group of processes
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will ever exhaust kernel resources alone.
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config KERNEL_PERF_EVENTS
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bool
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default y if KERNEL_CGROUP_PERF
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config KERNEL_CGROUP_PERF
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bool "Enable perf_event per-cpu per-container group (cgroup) monitoring"
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default n
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help
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This option extends the per-cpu mode to restrict monitoring to
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threads which belong to the cgroup specified and run on the
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designated cpu.
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menuconfig KERNEL_CGROUP_SCHED
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bool "Group CPU scheduler"
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default n
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help
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This feature lets CPU scheduler recognize task groups and control CPU
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bandwidth allocation to such task groups. It uses cgroups to group
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tasks.
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if KERNEL_CGROUP_SCHED
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config KERNEL_FAIR_GROUP_SCHED
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bool "Group scheduling for SCHED_OTHER"
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default n
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config KERNEL_CFS_BANDWIDTH
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bool "CPU bandwidth provisioning for FAIR_GROUP_SCHED"
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default n
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depends on KERNEL_FAIR_GROUP_SCHED
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help
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This option allows users to define CPU bandwidth rates (limits) for
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tasks running within the fair group scheduler. Groups with no limit
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set are considered to be unconstrained and will run with no
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restriction.
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See tip/Documentation/scheduler/sched-bwc.txt for more information.
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config KERNEL_RT_GROUP_SCHED
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bool "Group scheduling for SCHED_RR/FIFO"
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default n
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help
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This feature lets you explicitly allocate real CPU bandwidth
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to task groups. If enabled, it will also make it impossible to
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schedule realtime tasks for non-root users until you allocate
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realtime bandwidth for them.
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endif
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config KERNEL_BLK_CGROUP
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bool "Block IO controller"
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default y
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help
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Generic block IO controller cgroup interface. This is the common
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cgroup interface which should be used by various IO controlling
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policies.
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Currently, CFQ IO scheduler uses it to recognize task groups and
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control disk bandwidth allocation (proportional time slice allocation)
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to such task groups. It is also used by bio throttling logic in
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block layer to implement upper limit in IO rates on a device.
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This option only enables generic Block IO controller infrastructure.
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One needs to also enable actual IO controlling logic/policy. For
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enabling proportional weight division of disk bandwidth in CFQ, set
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CONFIG_CFQ_GROUP_IOSCHED=y; for enabling throttling policy, set
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CONFIG_BLK_DEV_THROTTLING=y.
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config KERNEL_DEBUG_BLK_CGROUP
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bool "Enable Block IO controller debugging"
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default n
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depends on KERNEL_BLK_CGROUP
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help
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Enable some debugging help. Currently it exports additional stat
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files in a cgroup which can be useful for debugging.
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config KERNEL_NET_CLS_CGROUP
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bool "Control Group Classifier"
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default y
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config KERNEL_NETPRIO_CGROUP
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bool "Network priority cgroup"
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default y
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endif
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#
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# Namespace support symbols
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#
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config KERNEL_NAMESPACES
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bool "Enable kernel namespaces"
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default n
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if KERNEL_NAMESPACES
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config KERNEL_UTS_NS
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bool "UTS namespace"
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default y
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help
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In this namespace tasks see different info provided
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with the uname() system call
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config KERNEL_IPC_NS
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bool "IPC namespace"
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default y
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help
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In this namespace tasks work with IPC ids which correspond to
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different IPC objects in different namespaces.
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config KERNEL_USER_NS
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bool "User namespace (EXPERIMENTAL)"
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default y
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help
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This allows containers, i.e. vservers, to use user namespaces
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to provide different user info for different servers.
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config KERNEL_PID_NS
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bool "PID Namespaces"
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default y
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help
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Support process id namespaces. This allows having multiple
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processes with the same pid as long as they are in different
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pid namespaces. This is a building block of containers.
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config KERNEL_NET_NS
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bool "Network namespace"
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default y
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help
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Allow user space to create what appear to be multiple instances
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of the network stack.
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endif
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#
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# LXC related symbols
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#
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config KERNEL_LXC_MISC
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bool "Enable miscellaneous LXC related options"
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default n
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if KERNEL_LXC_MISC
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config KERNEL_DEVPTS_MULTIPLE_INSTANCES
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bool "Support multiple instances of devpts"
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default y
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help
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Enable support for multiple instances of devpts filesystem.
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If you want to have isolated PTY namespaces (eg: in containers),
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say Y here. Otherwise, say N. If enabled, each mount of devpts
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filesystem with the '-o newinstance' option will create an
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independent PTY namespace.
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config KERNEL_POSIX_MQUEUE
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bool "POSIX Message Queues"
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default n
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help
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POSIX variant of message queues is a part of IPC. In POSIX message
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queues every message has a priority which decides about succession
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of receiving it by a process. If you want to compile and run
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programs written e.g. for Solaris with use of its POSIX message
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queues (functions mq_*) say Y here.
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POSIX message queues are visible as a filesystem called 'mqueue'
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and can be mounted somewhere if you want to do filesystem
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operations on message queues.
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endif
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comment "Package build options"
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config DEBUG
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bool
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prompt "Compile packages with debugging info"
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default n
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help
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Adds -g3 to the CFLAGS
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config IPV6
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bool
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prompt "Enable IPv6 support in packages"
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default y
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help
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Enable IPV6 support in packages (passes --enable-ipv6 to configure scripts).
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config PKG_BUILD_PARALLEL
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bool
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prompt "Compile certain packages parallelized"
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default y
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help
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This adds a -jX option to certain packages that are known to
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behave well for parallel build. By default the package make processes
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use the main jobserver, in which case this option only takes effect
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when you add -jX to the make command.
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If you are unsure, select N.
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config PKG_BUILD_USE_JOBSERVER
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bool
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prompt "Use top-level make jobserver for packages"
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depends on PKG_BUILD_PARALLEL
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default y
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help
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This passes the main make process jobserver fds to package builds,
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enabling full parallelization across different packages
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Note that disabling this may overcommit CPU resources depending on the
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-j level of the main make process, the number of package
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submake jobs selected below and the number of actual CPUs present.
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Example: If the main make is passed a -j4 and the submake -j
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is also set to 4, we may end up with 16 parallel make processes
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in the worst case.
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config PKG_BUILD_JOBS
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int
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prompt "Number of package submake jobs (2-512)"
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range 2 512
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default 2
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depends on PKG_BUILD_PARALLEL && !PKG_BUILD_USE_JOBSERVER
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help
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The number of jobs (-jX) to pass to packages submake.
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config PKG_DEFAULT_PARALLEL
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bool
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prompt "Parallelize the default package build rule (May break build)"
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depends on PKG_BUILD_PARALLEL
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depends on BROKEN
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default n
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help
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Always set the default package build rules to parallel build.
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WARNING: This may break build or kill your cat, as it builds
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packages with multiple jobs that are probably not tested in
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a parallel build environment.
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Only say Y, if you don't mind fixing broken packages.
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Before reporting build bugs, set this to N and re-run the build.
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comment "Stripping options"
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choice
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prompt "Binary stripping method"
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default USE_STRIP if EXTERNAL_TOOLCHAIN
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default USE_STRIP if USE_GLIBC || USE_EGLIBC || USE_MUSL
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default USE_SSTRIP
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help
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Select the binary stripping method you wish to use.
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config NO_STRIP
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bool "none"
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help
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This will install unstripped binaries (useful for native compiling/debugging)
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config USE_STRIP
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bool "strip"
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help
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This will install binaries stripped using strip from binutils
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config USE_SSTRIP
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bool "sstrip"
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depends on !DEBUG
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depends on !USE_GLIBC
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depends on !USE_EGLIBC
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help
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This will install binaries stripped using sstrip
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endchoice
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config STRIP_ARGS
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string
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prompt "Strip arguments"
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depends on USE_STRIP
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default "--strip-unneeded --remove-section=.comment --remove-section=.note" if DEBUG
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default "--strip-all"
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help
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Specifies arguments passed to the strip command when stripping binaries
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config STRIP_KERNEL_EXPORTS
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bool "Strip unnecessary exports from the kernel image"
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help
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Reduces kernel size by stripping unused kernel exports from the kernel image
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Note that this might make the kernel incompatible with any kernel modules that
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were not selected at the time the kernel image was created
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config USE_MKLIBS
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bool "Strip unnecessary functions from libraries"
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help
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Reduces libraries to only those functions that are necessary for using all
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selected packages (including those selected as <M>)
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Note that this will make the system libraries incompatible with most of the packages
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that are not selected during the build process
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choice
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prompt "Preferred standard C++ library"
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default USE_LIBSTDCXX if USE_EGLIBC
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default USE_UCLIBCXX
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help
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Select the preferred standard C++ library for all packages that support this.
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config USE_UCLIBCXX
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bool "uClibc++"
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config USE_LIBSTDCXX
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bool "libstdc++"
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endchoice
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endmenu
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menuconfig DEVEL
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bool "Advanced configuration options (for developers)"
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default n
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config BROKEN
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bool "Show broken platforms / packages" if DEVEL
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default n
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config DOWNLOAD_FOLDER
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string "Download folder" if DEVEL
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default ""
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config LOCALMIRROR
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string "Local mirror for source packages" if DEVEL
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default ""
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config AUTOREBUILD
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bool "Automatic rebuild of packages" if DEVEL
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default y
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help
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Automatically rebuild packages when their files change
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config BUILD_SUFFIX
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string "Build suffix to append to the BUILD_DIR variable" if DEVEL
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default ""
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help
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Build suffix to append to the BUILD_DIR variable, i.e: build_dir_suffix
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config TARGET_ROOTFS_DIR
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string "Override the default TARGET_ROOTFS_DIR variable" if DEVEL
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default ""
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help
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Override the default TARGET_ROOTFS_DIR variable content $(BUILD_DIR) with custom path.
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Use this option to re-define the location of the target root file system directory.
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config CCACHE
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bool "Use ccache" if DEVEL
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default n
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help
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Compiler cache; see http://ccache.samba.org/
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config EXTERNAL_KERNEL_TREE
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string "Use external kernel tree" if DEVEL
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default ""
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config KERNEL_GIT_CLONE_URI
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string "Enter git repository to clone" if DEVEL
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default ""
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help
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Enter the full git repository path i.e.:
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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
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This will create a git clone of the kernel in your build
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directory.
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config KERNEL_GIT_LOCAL_REPOSITORY
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string "Enter path to local reference repository" if DEVEL
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default ""
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help
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Enter a full pathname to a local reference git repository.
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In this instance, the --refererence option of git clone will
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be used thus creating a quick local clone of your repo.
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config BUILD_LOG
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bool "Enable log files during build process" if DEVEL
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help
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If enabled log files will be written to the ./log directory
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config SRC_TREE_OVERRIDE
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bool "Enable package source tree override" if DEVEL
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help
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If enabled, you can force a package to use a git tree as source
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code instead of the normal tarball. Create a symlink 'git-src'
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in the package directory, pointing to the .git tree that you want
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to pull the source code from
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menuconfig TARGET_OPTIONS
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bool "Target Options" if DEVEL
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config TARGET_OPTIMIZATION
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string "Target Optimizations" if TARGET_OPTIONS
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default DEFAULT_TARGET_OPTIMIZATION
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help
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Optimizations to use when building for the target host.
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config SOFT_FLOAT
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bool "Use software floating point by default" if TARGET_OPTIONS
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default y
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depends on (arm || armeb || powerpc || mipsel || mips || mips64el || mips64) && !HAS_FPU
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help
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If your target CPU does not have a Floating Point Unit (FPU) or a
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kernel FPU emulator, but you still wish to support floating point
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functions, then everything will need to be compiled with soft floating
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point support (-msoft-float).
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Most people will answer N.
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config USE_MIPS16
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bool "Build packages with MIPS16 instructions" if TARGET_OPTIONS
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depends on HAS_MIPS16
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help
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If your target CPU does support the MIPS16 instruction set
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and you want to use it for packages, enable this option.
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MIPS16 produces smaller binaries thus reducing pressure on
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caches and TLB.
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Most people will answer N.
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source "toolchain/Config.in"
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source "target/imagebuilder/Config.in"
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source "target/sdk/Config.in"
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source "target/toolchain/Config.in"
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source "tmp/.config-package.in"
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