diff options
Diffstat (limited to 'config')
| -rw-r--r-- | config/Config-build.in | 292 | ||||
| -rw-r--r-- | config/Config-devel.in | 111 | ||||
| -rw-r--r-- | config/Config-images.in | 315 | ||||
| -rw-r--r-- | config/Config-kernel.in | 553 |
4 files changed, 1271 insertions, 0 deletions
diff --git a/config/Config-build.in b/config/Config-build.in new file mode 100644 index 0000000..2523a18 --- /dev/null +++ b/config/Config-build.in @@ -0,0 +1,292 @@ +# Copyright (C) 2006-2013 OpenWrt.org +# +# This is free software, licensed under the GNU General Public License v2. +# See /LICENSE for more information. +# + +menu "Global build settings" + + config ALL_KMODS + bool "Select all kernel module packages by default" + default ALL + + config ALL + bool "Select all userspace packages by default" + default n + + config SIGNED_PACKAGES + bool "Cryptographically signed package lists" + default y + + comment "General build options" + + config DISPLAY_SUPPORT + bool "Show packages that require graphics support (local or remote)" + default n + + config BUILD_PATENTED + default y + bool "Compile with support for patented functionality" + help + When this option is disabled, software which provides patented functionality + will not be built. In case software provides optional support for patented + functionality, this optional support will get disabled for this package. + + config BUILD_NLS + default n + bool "Compile with full language support" + help + When this option is enabled, packages are built with the full versions of + iconv and GNU gettext instead of the default OpenWrt stubs. If uClibc is + used, it is also built with locale support. + + config SHADOW_PASSWORDS + bool + prompt "Enable shadow password support" + default y + help + Enable shadow password support. + + config CLEAN_IPKG + bool + prompt "Remove ipkg/opkg status data files in final images" + default n + help + This removes all ipkg/opkg status data files from the target directory + before building the root filesystem. + + config COLLECT_KERNEL_DEBUG + bool + prompt "Collect kernel debug information" + select KERNEL_DEBUG_INFO + default n + help + This collects debugging symbols from the kernel and all compiled modules. + Useful for release builds, so that kernel issues can be debugged offline + later. + + comment "Kernel build options" + + source "config/Config-kernel.in" + + comment "Package build options" + + config DEBUG + bool + prompt "Compile packages with debugging info" + default n + help + Adds -g3 to the CFLAGS. + + config IPV6 + bool + prompt "Enable IPv6 support in packages" + default y + help + Enables IPv6 support in kernel (builtin) and packages. + + 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_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 + 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_GLIBC + 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 + + comment "Hardening build options" + + config PKG_CHECK_FORMAT_SECURITY + bool + prompt "Enable gcc format-security" + default y + help + Add -Wformat -Werror=format-security to the CFLAGS. You can disable + this per package by adding PKG_CHECK_FORMAT_SECURITY:=0 in the package + Makefile. + + choice + prompt "User space Stack-Smashing Protection" + depends on USE_MUSL + default PKG_CC_STACKPROTECTOR_REGULAR + help + Enable GCC Stack Smashing Protection (SSP) for userspace applications + config PKG_CC_STACKPROTECTOR_NONE + bool "None" + config PKG_CC_STACKPROTECTOR_REGULAR + bool "Regular" + select SSP_SUPPORT if !USE_MUSL + depends on KERNEL_CC_STACKPROTECTOR_REGULAR + config PKG_CC_STACKPROTECTOR_STRONG + bool "Strong" + select SSP_SUPPORT if !USE_MUSL + depends on GCC_VERSION_5 + depends on KERNEL_CC_STACKPROTECTOR_STRONG + endchoice + + choice + prompt "Kernel space Stack-Smashing Protection" + default KERNEL_CC_STACKPROTECTOR_REGULAR + depends on USE_MUSL || !(x86_64 || i386) + help + Enable GCC Stack-Smashing Protection (SSP) for the kernel + config KERNEL_CC_STACKPROTECTOR_NONE + bool "None" + config KERNEL_CC_STACKPROTECTOR_REGULAR + bool "Regular" + config KERNEL_CC_STACKPROTECTOR_STRONG + depends on GCC_VERSION_5 + bool "Strong" + endchoice + + choice + prompt "Enable buffer-overflows detection (FORTIFY_SOURCE)" + default PKG_FORTIFY_SOURCE_1 + help + Enable the _FORTIFY_SOURCE macro which introduces additional + checks to detect buffer-overflows in the following standard library + functions: memcpy, mempcpy, memmove, memset, strcpy, stpcpy, + strncpy, strcat, strncat, sprintf, vsprintf, snprintf, vsnprintf, + gets. "Conservative" (_FORTIFY_SOURCE set to 1) only introduces + checks that shouldn't change the behavior of conforming programs, + while "aggressive" (_FORTIFY_SOURCES set to 2) some more checking is + added, but some conforming programs might fail. + config PKG_FORTIFY_SOURCE_NONE + bool "None" + config PKG_FORTIFY_SOURCE_1 + bool "Conservative" + config PKG_FORTIFY_SOURCE_2 + bool "Aggressive" + endchoice + + choice + prompt "Enable RELRO protection" + default PKG_RELRO_FULL + help + Enable a link-time protection known as RELRO (Relocation Read Only) + which helps to protect from certain type of exploitation techniques + altering the content of some ELF sections. "Partial" RELRO makes the + .dynamic section not writeable after initialization, introducing + almost no performance penalty, while "full" RELRO also marks the GOT + as read-only at the cost of initializing all of it at startup. + config PKG_RELRO_NONE + bool "None" + config PKG_RELRO_PARTIAL + bool "Partial" + config PKG_RELRO_FULL + bool "Full" + endchoice + +endmenu diff --git a/config/Config-devel.in b/config/Config-devel.in new file mode 100644 index 0000000..d096c18 --- /dev/null +++ b/config/Config-devel.in @@ -0,0 +1,111 @@ +# Copyright (C) 2006-2013 OpenWrt.org +# +# This is free software, licensed under the GNU General Public License v2. +# See /LICENSE for more information. +# + +menuconfig DEVEL + bool "Advanced configuration options (for developers)" + default n + + config BROKEN + bool "Show broken platforms / packages" if DEVEL + default n + + config BINARY_FOLDER + string "Binary folder" if DEVEL + default "" + help + Store built firmware images and filesystem images in this directory. + If not set, uses './bin/$(BOARD)' + + config DOWNLOAD_FOLDER + string "Download folder" if DEVEL + default "" + help + Store downloaded source bundles in this directory. + If not set then defaults to './dl', which is removed by operations such as + 'git clean -xdf' or 'make distclean'. + This option is useful if you have a low bandwidth Internet connection, and by + setting a path outside the OpenWrt tree downloads will be saved. + + config LOCALMIRROR + string "Local mirror for source packages" if DEVEL + default "" + + config AUTOREBUILD + bool "Automatic rebuild of packages" if DEVEL + default y + help + Automatically rebuild packages when their files change. + + config BUILD_SUFFIX + string "Build suffix to append to the target BUILD_DIR variable" if DEVEL + default "" + help + Build suffix to append to the BUILD_DIR variable, i.e: './build_dir/{target-build-dir}_$(BUILD_SUFFIX)'. + This allows you to switch to a different .config whilst retaining all the build + objects generated by the first .config + + 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 filesystem 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 + depends on (KERNEL_GIT_CLONE_URI != "") + default "" + help + Enter a full pathname to a local reference git repository. + In this instance, the --reference option of git clone will + be used thus creating a quick local clone of your repo. + + config KERNEL_GIT_BRANCH + string "Enter git branch to clone" if DEVEL + depends on (KERNEL_GIT_CLONE_URI != "") + default "" + help + Enter the branch name to checkout after cloning the git repository. + In this instance, the --branch option of git clone will be used. + If unused, the clone's repository HEAD will be checked-out. + + config BUILD_LOG + bool "Enable log files during build process" if DEVEL + help + If enabled, log files will be written to the ./log directory. + + config SRC_TREE_OVERRIDE + bool "Enable package source tree override" if DEVEL + help + If enabled, you can force a package to use a git tree as source + code instead of the normal tarball. Create a symlink 'git-src' + in the package directory, pointing to the .git tree that you want + to pull the source code from. + + config EXTRA_OPTIMIZATION + string "Additional compiler options" if DEVEL + default "-fno-caller-saves" + help + Extra target-independent optimizations to use when building for the target. diff --git a/config/Config-images.in b/config/Config-images.in new file mode 100644 index 0000000..a60dd50 --- /dev/null +++ b/config/Config-images.in @@ -0,0 +1,315 @@ +# Copyright (C) 2006-2013 OpenWrt.org +# +# This is free software, licensed under the GNU General Public License v2. +# See /LICENSE for more information. +# + +menu "Target Images" + + menuconfig TARGET_ROOTFS_INITRAMFS + bool "ramdisk" + default y if USES_INITRAMFS + help + Embed the root filesystem into the kernel (initramfs). + + choice + prompt "Compression" + default TARGET_INITRAMFS_COMPRESSION_LZMA if TARGET_ar71xx + default TARGET_INITRAMFS_COMPRESSION_LZMA if TARGET_ramips + default TARGET_INITRAMFS_COMPRESSION_NONE + depends on TARGET_ROOTFS_INITRAMFS + help + Select ramdisk compression. + + config TARGET_INITRAMFS_COMPRESSION_NONE + bool "none" + + config TARGET_INITRAMFS_COMPRESSION_GZIP + bool "gzip" + + config TARGET_INITRAMFS_COMPRESSION_BZIP2 + bool "bzip2" + + config TARGET_INITRAMFS_COMPRESSION_LZMA + bool "lzma" + + config TARGET_INITRAMFS_COMPRESSION_LZO + bool "lzo" + + config TARGET_INITRAMFS_COMPRESSION_LZ4 + bool "lz4" + + config TARGET_INITRAMFS_COMPRESSION_XZ + bool "xz" + endchoice + + config EXTERNAL_CPIO + string + prompt "Use external cpio" if TARGET_ROOTFS_INITRAMFS + default "" + help + Kernel uses specified external cpio as INITRAMFS_SOURCE. + + comment "Root filesystem archives" + + config TARGET_ROOTFS_CPIOGZ + bool "cpio.gz" + default y if USES_CPIOGZ + help + Build a compressed cpio archive of the root filesystem. + + config TARGET_ROOTFS_TARGZ + bool "tar.gz" + default y if USES_TARGZ + help + Build a compressed tar archive of the root filesystem. + + comment "Root filesystem images" + + menuconfig TARGET_ROOTFS_EXT4FS + bool "ext4" + default y if USES_EXT4 + help + Build an ext4 root filesystem. + + config TARGET_EXT4_MAXINODE + int "Maximum number of inodes in root filesystem" + depends on TARGET_ROOTFS_EXT4FS + default 6000 + help + Select the maximum number of inodes in the root filesystem. + + config TARGET_EXT4_RESERVED_PCT + int "Percentage of reserved blocks in root filesystem" + depends on TARGET_ROOTFS_EXT4FS + default 0 + help + Select the percentage of reserved blocks in the root filesystem. + + choice + prompt "Root filesystem block size" + default TARGET_EXT4_BLOCKSIZE_4K + depends on TARGET_ROOTFS_EXT4FS + help + Select the block size of the root filesystem. + + config TARGET_EXT4_BLOCKSIZE_4K + bool "4k" + + config TARGET_EXT4_BLOCKSIZE_2K + bool "2k" + + config TARGET_EXT4_BLOCKSIZE_1K + bool "1k" + endchoice + + config TARGET_EXT4_BLOCKSIZE + int + default 4096 if TARGET_EXT4_BLOCKSIZE_4K + default 2048 if TARGET_EXT4_BLOCKSIZE_2K + default 1024 if TARGET_EXT4_BLOCKSIZE_1K + depends on TARGET_ROOTFS_EXT4FS + + config TARGET_EXT4_JOURNAL + bool "Create a journaling filesystem" + depends on TARGET_ROOTFS_EXT4FS + default n + help + Create an ext4 filesystem with a journal. + + config TARGET_ROOTFS_ISO + bool "iso" + default n + depends on TARGET_x86_generic + help + Create a bootable ISO image. + + config TARGET_ROOTFS_JFFS2 + bool "jffs2" + default y if USES_JFFS2 + help + Build a JFFS2 root filesystem. + + config TARGET_ROOTFS_JFFS2_NAND + bool "jffs2 for NAND" + default y if USES_JFFS2_NAND + depends on USES_JFFS2_NAND + help + Build a JFFS2 root filesystem for NAND flash. + + menuconfig TARGET_ROOTFS_SQUASHFS + bool "squashfs" + default y if USES_SQUASHFS + help + Build a squashfs-lzma root filesystem. + + config TARGET_SQUASHFS_BLOCK_SIZE + int "Block size (in KiB)" + depends on TARGET_ROOTFS_SQUASHFS + default 64 if LOW_MEMORY_FOOTPRINT + default 256 + + menuconfig TARGET_ROOTFS_UBIFS + bool "ubifs" + default y if USES_UBIFS + depends on USES_UBIFS + help + Build a UBIFS root filesystem. + + choice + prompt "compression" + default TARGET_UBIFS_COMPRESSION_ZLIB + depends on TARGET_ROOTFS_UBIFS + help + Select compression type + + config TARGET_UBIFS_COMPRESSION_NONE + bool "none" + + config TARGET_UBIFS_COMPRESSION_LZO + bool "lzo" + + config TARGET_UBIFS_COMPRESSION_ZLIB + bool "zlib" + endchoice + + config TARGET_UBIFS_FREE_SPACE_FIXUP + bool "free space fixup" if TARGET_ROOTFS_UBIFS + default y + help + The filesystem free space has to be fixed up on first mount. + + config TARGET_UBIFS_JOURNAL_SIZE + string + prompt "journal size" if TARGET_ROOTFS_UBIFS + default "" + + config GRUB_IMAGES + bool "Build GRUB images (Linux x86 or x86_64 host only)" + depends on TARGET_x86_64 || (TARGET_x86 && !TARGET_x86_rdc) + depends on TARGET_ROOTFS_EXT4FS || TARGET_ROOTFS_ISO || TARGET_ROOTFS_JFFS2 || TARGET_ROOTFS_SQUASHFS + select PACKAGE_grub2 + default y + + config GRUB_CONSOLE + bool "Use Console Terminal (in addition to Serial)" + depends on GRUB_IMAGES + default n if (TARGET_x86_generic_Soekris45xx || TARGET_x86_generic_Soekris48xx || TARGET_x86_net5501 || TARGET_x86_geos || TARGET_x86_alix2) + default y + + config GRUB_SERIAL + string "Serial port device" + depends on GRUB_IMAGES + default "hvc0" if TARGET_x86_xen_domu + default "ttyS0" if ! TARGET_x86_xen_domu + + config GRUB_BAUDRATE + int "Serial port baud rate" + depends on GRUB_IMAGES + default 38400 if TARGET_x86_generic + default 38400 if TARGET_x86_geode + default 115200 + + config GRUB_BOOTOPTS + string "Extra kernel boot options" + depends on GRUB_IMAGES + default "xencons=hvc" if TARGET_x86_xen_domu + help + If you don't know, just leave it blank. + + config GRUB_TIMEOUT + string "Seconds to wait before booting the default entry" + depends on GRUB_IMAGES + default "5" + help + If you don't know, 5 seconds is a reasonable default. + + config VDI_IMAGES + bool "Build VirtualBox image files (VDI)" + depends on TARGET_x86 || TARGET_x86_64 + select GRUB_IMAGES + select TARGET_IMAGES_PAD + select PACKAGE_kmod-e1000 + + config VMDK_IMAGES + bool "Build VMware image files (VMDK)" + depends on TARGET_x86 || TARGET_x86_64 + select GRUB_IMAGES + select TARGET_IMAGES_PAD + select PACKAGE_kmod-e1000 + + config TARGET_IMAGES_PAD + bool "Pad images to filesystem size (for JFFS2)" + depends on GRUB_IMAGES + + config TARGET_IMAGES_GZIP + bool "GZip images" + depends on TARGET_IMAGES_PAD || TARGET_ROOTFS_EXT4FS + default y + + comment "Image Options" + + source "target/linux/*/image/Config.in" + + config TARGET_KERNEL_PARTSIZE + int "Kernel partition size (in MB)" + depends on GRUB_IMAGES + default 4 + + config TARGET_ROOTFS_PARTSIZE + int "Root filesystem partition size (in MB)" + depends on GRUB_IMAGES || TARGET_ROOTFS_EXT4FS || TARGET_rb532 + default 48 + help + Select the root filesystem partition size. + + config TARGET_ROOTFS_PARTNAME + string "Root partition on target device" + depends on GRUB_IMAGES + help + Override the root partition on the final device. If left empty, + it will be mounted by PARTUUID which makes the kernel find the + appropriate disk automatically. + + + menuconfig TARGET_ROOTFS_INCLUDE_KERNEL + bool "Include kernel in root filesystem" + depends on TARGET_ROOTFS_UBIFS || TARGET_ROOTFS_EXT4FS + default n + help + Include the kernel image in the rootfs. Typically, the image is placed + below /boot. + + config TARGET_ROOTFS_INCLUDE_UIMAGE + bool "include uImage" if TARGET_ROOTFS_INCLUDE_KERNEL + default y + help + This option might not apply to all targets. Make sure + to check target/linux/<your_target>/image/Makefile to + see if this option will have any effect. + + config TARGET_ROOTFS_INCLUDE_ZIMAGE + bool "include zImage" if TARGET_ROOTFS_INCLUDE_KERNEL + default y + help + This option might not apply to all targets. Make sure + to check target/linux/<your_target>/image/Makefile to + see if this option will have any effect. + + config TARGET_ROOTFS_INCLUDE_FIT + bool "include FIT" if TARGET_ROOTFS_INCLUDE_KERNEL + default y + help + This option might not apply to all targets. Make sure + to check target/linux/<your_target>/image/Makefile to + see if this option will have any effect. + + config TARGET_ROOTFS_INCLUDE_DTB + bool "Include DTB in root filesystem" + depends on USES_DEVICETREE && (TARGET_ROOTFS_UBIFS || TARGET_ROOTFS_EXT4FS) + default n + help + Include the device tree blob file(s) in the rootfs. Typically the DTBs + are placed below /boot. + +endmenu diff --git a/config/Config-kernel.in b/config/Config-kernel.in new file mode 100644 index 0000000..4be5f53 --- /dev/null +++ b/config/Config-kernel.in @@ -0,0 +1,553 @@ +# Copyright (C) 2006-2014 OpenWrt.org +# +# This is free software, licensed under the GNU General Public License v2. +# See /LICENSE for more information. +# + +config KERNEL_PRINTK + bool "Enable support for printk" + default y + +config KERNEL_CRASHLOG + bool "Crash logging" + depends on !(arm || powerpc || sparc || TARGET_uml) + default y + +config KERNEL_SWAP + bool "Support for paging of anonymous memory (swap)" + default y + +config KERNEL_DEBUG_FS + bool "Compile the kernel with debug filesystem enabled" + default y + help + debugfs is a virtual file system that kernel developers use to put + debugging files into. Enable this option to be able to read and + write to these files. Many common debugging facilities, such as + ftrace, require the existence of debugfs. + +config KERNEL_PERF_EVENTS + bool + default n + +config KERNEL_PROFILING + bool "Compile the kernel with profiling enabled" + default n + select KERNEL_PERF_EVENTS + help + Enable the extended profiling support mechanisms used by profilers such + as OProfile. + +config KERNEL_KALLSYMS + bool "Compile the kernel with symbol table information" + default y + help + This will give you more information in stack traces from kernel oopses. + +config KERNEL_FTRACE + bool "Compile the kernel with tracing support" + depends on !TARGET_uml + default n + +config KERNEL_FTRACE_SYSCALLS + bool "Trace system calls" + depends on KERNEL_FTRACE + default n + +config KERNEL_ENABLE_DEFAULT_TRACERS + bool "Trace process context switches and events" + depends on KERNEL_FTRACE + default n + +config KERNEL_FUNCTION_TRACER + bool "Function tracer" + depends on KERNEL_FTRACE + default n + +config KERNEL_FUNCTION_GRAPH_TRACER + bool "Function graph tracer" + depends on KERNEL_FUNCTION_TRACER + default n + +config KERNEL_DYNAMIC_FTRACE + bool "Enable/disable function tracing dynamically" + depends on KERNEL_FUNCTION_TRACER + default n + +config KERNEL_FUNCTION_PROFILER + bool "Function profiler" + depends on KERNEL_FUNCTION_TRACER + default n + +config KERNEL_DEBUG_KERNEL + bool + default n + +config KERNEL_DEBUG_INFO + bool "Compile the kernel with debug information" + default y + select KERNEL_DEBUG_KERNEL + help + This will compile your kernel and modules with debug information. + +config KERNEL_DEBUG_LL_UART_NONE + bool + default n + depends on arm + +config KERNEL_DEBUG_LL + bool + default n + depends on arm + select KERNEL_DEBUG_LL_UART_NONE + help + ARM low level debugging. + +config KERNEL_DYNAMIC_DEBUG + bool "Compile the kernel with dynamic printk" + select KERNEL_DEBUG_FS + default n + help + Compiles debug level messages into the kernel, which would not + otherwise be available at runtime. These messages can then be + enabled/disabled based on various levels of scope - per source file, + function, module, format string, and line number. This mechanism + implicitly compiles in all pr_debug() and dev_dbg() calls, which + enlarges the kernel text size by about 2%. + +config KERNEL_EARLY_PRINTK + bool "Compile the kernel with early printk" + default y if TARGET_bcm53xx + default n + depends on arm + select KERNEL_DEBUG_KERNEL + select KERNEL_DEBUG_LL if arm + help + Compile the kernel with early printk support. This is only useful for + debugging purposes to send messages over the serial console in early boot. + Enable this to debug early boot problems. + +config KERNEL_KPROBES + bool "Compile the kernel with kprobes support" + default n + select KERNEL_FTRACE + select KERNEL_PERF_EVENTS + help + Compiles the kernel with KPROBES support, which allows you to trap + at almost any kernel address and execute a callback function. + register_kprobe() establishes a probepoint and specifies the + callback. Kprobes is useful for kernel debugging, non-intrusive + instrumentation and testing. + If in doubt, say "N". + +config KERNEL_KPROBE_EVENT + bool + default y if KERNEL_KPROBES + +config KERNEL_AIO + bool "Compile the kernel with asynchronous IO support" + default n + +config KERNEL_DIRECT_IO + bool "Compile the kernel with direct IO support" + default n + +config KERNEL_FHANDLE + bool "Compile the kernel with support for fhandle syscalls" + default n + +config KERNEL_FANOTIFY + bool "Compile the kernel with modern file notification support" + default n + +config KERNEL_BLK_DEV_BSG + bool "Compile the kernel with SCSI generic v4 support for any block device" + default n + +config KERNEL_MAGIC_SYSRQ + bool "Compile the kernel with SysRq support" + default y + +config KERNEL_COREDUMP + bool + +config KERNEL_ELF_CORE + bool "Enable process core dump support" + select KERNEL_COREDUMP + default y + +config KERNEL_PROVE_LOCKING + bool "Enable kernel lock checking" + select KERNEL_DEBUG_KERNEL + default n + +config KERNEL_PRINTK_TIME + bool "Enable printk timestamps" + default y + +config KERNEL_SLUB_DEBUG + bool + +config KERNEL_SLUB_DEBUG_ON + bool + +config KERNEL_SLABINFO + select KERNEL_SLUB_DEBUG + select KERNEL_SLUB_DEBUG_ON + bool "Enable /proc slab debug info" + +config KERNEL_PROC_PAGE_MONITOR + bool "Enable /proc page monitoring" + +config KERNEL_RELAY + bool + +config KERNEL_KEXEC + bool "Enable kexec support" + +config USE_RFKILL + bool "Enable rfkill support" + default RFKILL_SUPPORT + +config USE_SPARSE + bool "Enable sparse check during kernel build" + default n + +config KERNEL_DEVTMPFS + bool "Compile the kernel with device tmpfs enabled" + default n + help + devtmpfs is a simple, kernel-managed /dev filesystem. The kernel creates + devices nodes for all registered devices ti simplify boot, but leaves more + complex tasks to userspace (e.g. udev). + +if KERNEL_DEVTMPFS + + config KERNEL_DEVTMPFS_MOUNT + bool "Automatically mount devtmpfs after root filesystem is mounted" + default n + +endif + +# +# CGROUP support symbols +# + +config KERNEL_CGROUPS + bool "Enable kernel cgroups" + default n + +if KERNEL_CGROUPS + + config KERNEL_CGROUP_DEBUG + bool "Example debug cgroup subsystem" + default n + help + This option enables a simple cgroup subsystem that + exports useful debugging information about the cgroups + framework. + + config KERNEL_FREEZER + bool + default y if KERNEL_CGROUP_FREEZER + + config KERNEL_CGROUP_FREEZER + bool "Freezer cgroup subsystem" + default y + help + Provides a way to freeze and unfreeze all tasks in a + cgroup. + + config KERNEL_CGROUP_DEVICE + bool "Device controller for cgroups" + default y + help + Provides a cgroup implementing whitelists for devices which + a process in the cgroup can mknod or open. + + config KERNEL_CGROUP_PIDS + bool "PIDs cgroup subsystem" + default y + help + Provides enforcement of process number limits in the scope of a + cgroup. + + config KERNEL_CPUSETS + bool "Cpuset support" + default n + help + This option will let you create and manage CPUSETs which + allow dynamically partitioning a system into sets of CPUs and + Memory Nodes and assigning tasks to run only within those sets. + This is primarily useful on large SMP or NUMA systems. + + config KERNEL_PROC_PID_CPUSET + bool "Include legacy /proc/<pid>/cpuset file" + default n + depends on KERNEL_CPUSETS + + config KERNEL_CGROUP_CPUACCT + bool "Simple CPU accounting cgroup subsystem" + default n + help + Provides a simple Resource Controller for monitoring the + total CPU consumed by the tasks in a cgroup. + + config KERNEL_RESOURCE_COUNTERS + bool "Resource counters" + default n + help + This option enables controller independent resource accounting + infrastructure that works with cgroups. + + config KERNEL_MM_OWNER + bool + default y if KERNEL_MEMCG + + config KERNEL_MEMCG + bool "Memory Resource Controller for Control Groups" + default n + depends on KERNEL_RESOURCE_COUNTERS || !LINUX_3_18 + help + Provides a memory resource controller that manages both anonymous + memory and page cache. (See Documentation/cgroups/memory.txt) + + Note that setting this option increases fixed memory overhead + associated with each page of memory in the system. By this, + 20(40)bytes/PAGE_SIZE on 32(64)bit system will be occupied by memory + usage tracking struct at boot. Total amount of this is printed out + at boot. + + Only enable when you're ok with these tradeoffs and really + sure you need the memory resource controller. Even when you enable + this, you can set "cgroup_disable=memory" at your boot option to + disable memory resource controller and you can avoid overheads + (but lose benefits of memory resource controller). + + This config option also selects MM_OWNER config option, which + could in turn add some fork/exit overhead. + + config KERNEL_MEMCG_SWAP + bool "Memory Resource Controller Swap Extension" + default n + depends on KERNEL_MEMCG + help + Add swap management feature to memory resource controller. When you + enable this, you can limit mem+swap usage per cgroup. In other words, + when you disable this, memory resource controller has no cares to + usage of swap...a process can exhaust all of the swap. This extension + is useful when you want to avoid exhaustion swap but this itself + adds more overheads and consumes memory for remembering information. + Especially if you use 32bit system or small memory system, please + be careful about enabling this. When memory resource controller + is disabled by boot option, this will be automatically disabled and + there will be no overhead from this. Even when you set this config=y, + if boot option "swapaccount=0" is set, swap will not be accounted. + Now, memory usage of swap_cgroup is 2 bytes per entry. If swap page + size is 4096bytes, 512k per 1Gbytes of swap. + + config KERNEL_MEMCG_SWAP_ENABLED + bool "Memory Resource Controller Swap Extension enabled by default" + default n + depends on KERNEL_MEMCG_SWAP + help + Memory Resource Controller Swap Extension comes with its price in + a bigger memory consumption. General purpose distribution kernels + which want to enable the feature but keep it disabled by default + and let the user enable it by swapaccount boot command line + parameter should have this option unselected. + + Those who want to have the feature enabled by default should + select this option (if, for some reason, they need to disable it, + then swapaccount=0 does the trick). + + + config KERNEL_MEMCG_KMEM + bool "Memory Resource Controller Kernel Memory accounting (EXPERIMENTAL)" + default n + depends on KERNEL_MEMCG + help + The Kernel Memory extension for Memory Resource Controller can limit + the amount of memory used by kernel objects in the system. Those are + fundamentally different from the entities handled by the standard + Memory Controller, which are page-based, and can be swapped. Users of + the kmem extension can use it to guarantee that no group of processes + will ever exhaust kernel resources alone. + + config KERNEL_CGROUP_PERF + bool "Enable perf_event per-cpu per-container group (cgroup) monitoring" + select KERNEL_PERF_EVENTS + default n + help + This option extends the per-cpu mode to restrict monitoring to + threads which belong to the cgroup specified and run on the + designated cpu. + + menuconfig KERNEL_CGROUP_SCHED + bool "Group CPU scheduler" + default n + help + This feature lets CPU scheduler recognize task groups and control CPU + bandwidth allocation to such task groups. It uses cgroups to group + tasks. + + if KERNEL_CGROUP_SCHED + + config KERNEL_FAIR_GROUP_SCHED + bool "Group scheduling for SCHED_OTHER" + default n + + config KERNEL_CFS_BANDWIDTH + bool "CPU bandwidth provisioning for FAIR_GROUP_SCHED" + default n + depends on KERNEL_FAIR_GROUP_SCHED + help + This option allows users to define CPU bandwidth rates (limits) for + tasks running within the fair group scheduler. Groups with no limit + set are considered to be unconstrained and will run with no + restriction. + See tip/Documentation/scheduler/sched-bwc.txt for more information. + + config KERNEL_RT_GROUP_SCHED + bool "Group scheduling for SCHED_RR/FIFO" + default n + help + This feature lets you explicitly allocate real CPU bandwidth + to task groups. If enabled, it will also make it impossible to + schedule realtime tasks for non-root users until you allocate + realtime bandwidth for them. + + endif + + config KERNEL_BLK_CGROUP + bool "Block IO controller" + default y + help + Generic block IO controller cgroup interface. This is the common + cgroup interface which should be used by various IO controlling + policies. + + Currently, CFQ IO scheduler uses it to recognize task groups and + control disk bandwidth allocation (proportional time slice allocation) + to such task groups. It is also used by bio throttling logic in + block layer to implement upper limit in IO rates on a device. + + This option only enables generic Block IO controller infrastructure. + One needs to also enable actual IO controlling logic/policy. For + enabling proportional weight division of disk bandwidth in CFQ, set + CONFIG_CFQ_GROUP_IOSCHED=y; for enabling throttling policy, set + CONFIG_BLK_DEV_THROTTLING=y. + + config KERNEL_DEBUG_BLK_CGROUP + bool "Enable Block IO controller debugging" + default n + depends on KERNEL_BLK_CGROUP + help + Enable some debugging help. Currently it exports additional stat + files in a cgroup which can be useful for debugging. + + config KERNEL_NET_CLS_CGROUP + bool "Control Group Classifier" + default y + + config KERNEL_NETPRIO_CGROUP + bool "Network priority cgroup" + default y + +endif + +# +# Namespace support symbols +# + +config KERNEL_NAMESPACES + bool "Enable kernel namespaces" + default n + +if KERNEL_NAMESPACES + + config KERNEL_UTS_NS + bool "UTS namespace" + default y + help + In this namespace, tasks see different info provided + with the uname() system call. + + config KERNEL_IPC_NS + bool "IPC namespace" + default y + help + In this namespace, tasks work with IPC ids which correspond to + different IPC objects in different namespaces. + + config KERNEL_USER_NS + bool "User namespace (EXPERIMENTAL)" + default y + help + This allows containers, i.e. vservers, to use user namespaces + to provide different user info for different servers. + + config KERNEL_PID_NS + bool "PID Namespaces" + default y + help + Support process id namespaces. This allows having multiple + processes with the same pid as long as they are in different + pid namespaces. This is a building block of containers. + + config KERNEL_NET_NS + bool "Network namespace" + default y + help + Allow user space to create what appear to be multiple instances + of the network stack. + +endif + +# +# LXC related symbols +# + +config KERNEL_LXC_MISC + bool "Enable miscellaneous LXC related options" + default n + +if KERNEL_LXC_MISC + + config KERNEL_DEVPTS_MULTIPLE_INSTANCES + bool "Support multiple instances of devpts" + default y + help + Enable support for multiple instances of devpts filesystem. + If you want to have isolated PTY namespaces (eg: in containers), + say Y here. Otherwise, say N. If enabled, each mount of devpts + filesystem with the '-o newinstance' option will create an + independent PTY namespace. + + config KERNEL_POSIX_MQUEUE + bool "POSIX Message Queues" + default y + 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 + +config KERNEL_SECCOMP_FILTER + bool + default n + +config KERNEL_SECCOMP + bool "Enable seccomp support" + depends on !(TARGET_uml) + select KERNEL_SECCOMP_FILTER + default n + help + Build kernel with support for seccomp. |