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869 lines
25 KiB
869 lines
25 KiB
# 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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depends on !TARGET_ROOTFS_INITRAMFS
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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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depends on !TARGET_ROOTFS_INITRAMFS
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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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depends on !TARGET_ROOTFS_INITRAMFS
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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 !TARGET_ROOTFS_INITRAMFS && 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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depends on !TARGET_ROOTFS_INITRAMFS
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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 !TARGET_ROOTFS_INITRAMFS && 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_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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#
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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
|
|
|
|
#
|
|
# 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
|
|
|
|
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"
|
|
|