1 # Copyright (C) 2006-2012 OpenWrt.org
3 # This is free software, licensed under the GNU General Public License v2.
4 # See /LICENSE for more information.
7 mainmenu "OpenWrt Configuration"
13 source "target/Config.in"
17 menuconfig TARGET_ROOTFS_INITRAMFS
19 default y if USES_INITRAMFS
21 Embed the rootfs into the kernel (initramfs)
25 default TARGET_INITRAMFS_COMPRESSION_LZMA if TARGET_ar71xx
26 default TARGET_INITRAMFS_COMPRESSION_LZMA if TARGET_ramips
27 default TARGET_INITRAMFS_COMPRESSION_NONE
28 depends TARGET_ROOTFS_INITRAMFS
30 Select ramdisk compression.
32 config TARGET_INITRAMFS_COMPRESSION_NONE
35 config TARGET_INITRAMFS_COMPRESSION_GZIP
38 config TARGET_INITRAMFS_COMPRESSION_BZIP2
41 config TARGET_INITRAMFS_COMPRESSION_LZMA
44 config TARGET_INITRAMFS_COMPRESSION_LZO
47 config TARGET_INITRAMFS_COMPRESSION_XZ
53 prompt "Use external cpio" if TARGET_ROOTFS_INITRAMFS
56 Kernel uses specified external cpio as INITRAMFS_SOURCE
58 comment "Root filesystem archives"
60 config TARGET_ROOTFS_CPIOGZ
62 default y if USES_CPIOGZ
64 Build a compressed cpio archive of the the root filesystem
66 config TARGET_ROOTFS_TARGZ
68 default y if USES_TARGZ
70 Build a compressed tar archive of the the root filesystem
72 comment "Root filesystem images"
74 config TARGET_ROOTFS_EXT4FS
76 default y if USES_EXT4
77 depends !TARGET_ROOTFS_INITRAMFS
79 Ext4 file system with some free space for uml images
81 config TARGET_ROOTFS_ISO
84 depends on TARGET_x86_generic
85 depends !TARGET_ROOTFS_INITRAMFS
87 Create some bootable ISO image
89 config TARGET_ROOTFS_JFFS2
91 default y if USES_JFFS2
92 depends !TARGET_ROOTFS_INITRAMFS
94 Build a jffs2 root filesystem
96 config TARGET_ROOTFS_SQUASHFS
98 default y if USES_SQUASHFS
99 depends !TARGET_ROOTFS_INITRAMFS
101 Build a squashfs-lzma root filesystem
103 config TARGET_ROOTFS_UBIFS
105 default y if USES_UBIFS
106 depends !TARGET_ROOTFS_INITRAMFS && USES_UBIFS
108 Build a ubifs root filesystem
110 comment "Image Options"
112 source "target/linux/*/image/Config.in"
114 config TARGET_ROOTFS_PARTSIZE
115 int "Root filesystem partition size (in MB)"
116 depends X86_GRUB_IMAGES || TARGET_ROOTFS_EXT4FS || TARGET_rb532
119 Allows you to change the root filesystem partition size
121 config TARGET_ROOTFS_MAXINODE
122 int "Maximum number of inodes in root filesystem"
123 depends TARGET_ROOTFS_EXT4FS
126 Allows you to change the maximum number of inodes in the root filesystem
128 config TARGET_ROOTFS_RESERVED_PCT
129 int "Percentage of reserved blocks in root filesystem"
130 depends TARGET_ROOTFS_EXT4FS
133 Allows you to change the percentage of reserved blocks in the root filesystem
137 menu "Global build settings"
140 bool "Select all packages by default"
143 comment "General build options"
145 config DISPLAY_SUPPORT
146 bool "Show packages that require graphics support (local or remote)"
149 config BUILD_PATENTED
151 bool "Compile with support for patented functionality"
153 When this option is disabled, software which provides patented functionality will not be built.
154 In case software provides optional support for patented functionality,
155 this optional support will get disabled for this package.
159 bool "Compile with full language support"
161 When this option is enabled, packages are built with the full versions of iconv and GNU gettext
162 instead of the default OpenWrt stubs. If uClibc is used, it is also built with locale support.
164 config BUILD_STATIC_TOOLS
166 bool "Attempt to link host utilities statically"
168 Linking host utilities like sed or firmware-utils statically increases the portability of the
169 generated ImageBuilder and SDK tarballs, however it may fail on some Linux distributions.
171 config SHADOW_PASSWORDS
173 prompt "Enable shadow password support"
176 Enable shadow password support.
180 prompt "Remove ipkg/opkg status data files in final images"
183 This removes all ipkg/opkg status data files from the target directory before building the root fs
185 config COLLECT_KERNEL_DEBUG
187 prompt "Collect kernel debug information"
188 select KERNEL_DEBUG_INFO
191 This collects debugging symbols from the kernel and all compiled modules.
192 Useful for release builds, so that kernel issues can be debugged offline later.
194 comment "Kernel build options"
196 config KERNEL_DEBUG_FS
197 bool "Compile the kernel with Debug FileSystem enabled"
200 debugfs is a virtual file system that kernel developers use to put
201 debugging files into. Enable this option to be able to read and
202 write to these files.
204 config KERNEL_PERF_EVENTS
208 config KERNEL_PROFILING
209 bool "Compile the kernel with profiling enabled"
211 select KERNEL_PERF_EVENTS
213 Enable the extended profiling support mechanisms used by profilers such
216 config KERNEL_KALLSYMS
217 bool "Compile the kernel with symbol table information"
220 This will give you more information in stack traces from kernel oopses
223 bool "Compile the kernel with tracing support"
226 config KERNEL_ENABLE_DEFAULT_TRACERS
227 bool "Trace process context switches and events"
228 depends on KERNEL_FTRACE
231 config KERNEL_DEBUG_KERNEL
235 config KERNEL_DEBUG_INFO
236 bool "Compile the kernel with debug information"
238 select KERNEL_DEBUG_KERNEL
240 This will compile your kernel and modules with debug information.
242 config KERNEL_DEBUG_LL_UART_NONE
247 config KERNEL_DEBUG_LL
251 select KERNEL_DEBUG_LL_UART_NONE
253 ARM low level debugging
255 config KERNEL_EARLY_PRINTK
256 bool "Compile the kernel with early printk"
259 select KERNEL_DEBUG_KERNEL
260 select KERNEL_DEBUG_LL if arm
262 Compile the kernel with early printk support.
263 This is only useful for debugging purposes to send messages
264 over the serial console in early boot.
265 Enable this to debug early boot problems.
268 bool "Compile the kernel with asynchronous IO support"
271 config KERNEL_DIRECT_IO
272 bool "Compile the kernel with direct IO support"
275 config KERNEL_MAGIC_SYSRQ
276 bool "Compile the kernel with SysRq support"
279 config KERNEL_ELF_CORE
280 bool "Enable process core dump support"
283 config KERNEL_PROVE_LOCKING
284 bool "Enable kernel lock checking"
285 select KERNEL_DEBUG_KERNEL
288 config KERNEL_PRINTK_TIME
289 bool "Enable printk timestamps"
293 # CGROUP support symbols
296 config KERNEL_FREEZER
298 default y if KERNEL_CGROUP_FREEZER
299 depends KERNEL_CGROUPS
301 config KERNEL_CGROUP_FREEZER
303 depends KERNEL_CGROUPS
305 config KERNEL_CGROUP_DEVICE
307 depends KERNEL_CGROUPS
309 config KERNEL_CPUSETS
311 default y if KERNEL_CGROUP_CPUACCT
312 depends KERNEL_CGROUPS
314 config KERNEL_PROC_PID_CPUSET
316 default y if KERNEL_CGROUP_CPUACCT
317 depends KERNEL_CGROUPS
319 config KERNEL_CGROUP_CPUACCT
321 depends KERNEL_CGROUPS
323 config KERNEL_RESOURCE_COUNTERS
325 default y if KERNEL_CGROUP_MEM_RES_CTLR
326 depends KERNEL_CGROUPS
328 config KERNEL_CGROUP_MEM_RES_CTLR
330 depends KERNEL_CGROUPS
332 config KERNEL_CGROUP_MEM_RES_CTLR_SWAP
334 depends KERNEL_CGROUPS
336 config KERNEL_CGROUP_MEM_RES_CTLR_SWAP_ENABLED
338 depends KERNEL_CGROUPS
340 config KERNEL_CGROUP_MEM_RES_CTLR_KMEM
342 depends KERNEL_CGROUPS
344 config KERNEL_CGROUP_PERF
346 depends KERNEL_CGROUPS
348 config KERNEL_CFS_BANDWIDTH
350 default y if KERNEL_FAIR_GROUP_SCHED
351 depends KERNEL_CGROUP_SCHED
353 config KERNEL_FAIR_GROUP_SCHED
355 default y if KERNEL_CGROUP_SCHED
356 depends KERNEL_CGROUP_SCHED
358 config KERNEL_RT_GROUP_SCHED
360 default y if KERNEL_CGROUP_SCHED
361 depends KERNEL_CGROUP_SCHED
363 config KERNEL_CGROUP_SCHED
365 depends KERNEL_CGROUPS
367 config KERNEL_NET_CLS_CGROUP
369 depends KERNEL_CGROUPS
371 config KERNEL_NETPRIO_CGROUP
373 depends KERNEL_CGROUPS
375 config KERNEL_BLK_CGROUP
377 depends KERNEL_CGROUPS
379 config KERNEL_DEBUG_BLK_CGROUP
381 default n if KERNEL_CGROUPS
382 depends KERNEL_CGROUPS
384 config KERNEL_CGROUPS
385 bool "Enable kernel cgroups"
387 select KERNEL_CGROUP_FREEZER
388 select KERNEL_CGROUP_DEVICE
389 select KERNEL_CGROUP_CPUACCT
390 select KERNEL_CGROUP_MEM_RES_CTLR
391 select KERNEL_CGROUP_MEM_RES_CTLR_SWAP
392 select KERNEL_CGROUP_MEM_RES_CTLR_SWAP_ENABLED
393 select KERNEL_CGROUP_MEM_RES_CTLR_KMEM
394 select KERNEL_CGROUP_PERF
395 select KERNEL_CGROUP_SCHED
396 select KERNEL_NET_CLS_CGROUP
397 select KERNEL_NETPRIO_CGROUP
398 select KERNEL_BLK_CGROUP
401 # Namespace support symbols
406 depends KERNEL_NAMESPACES
410 depends KERNEL_NAMESPACES
412 config KERNEL_USER_NS
414 depends KERNEL_NAMESPACES
418 depends KERNEL_NAMESPACES
422 depends KERNEL_NAMESPACES
424 config KERNEL_DEVPTS_MULTIPLE_INSTANCES
426 depends KERNEL_NAMESPACES
428 config KERNEL_NAMESPACES
429 bool "Enable kernel namespaces"
433 select KERNEL_USER_NS
436 select KERNEL_DEVPTS_MULTIPLE_INSTANCES
439 comment "Package build options"
443 prompt "Compile packages with debugging info"
446 Adds -g3 to the CFLAGS
450 prompt "Enable IPv6 support in packages"
453 Enable IPV6 support in packages (passes --enable-ipv6 to configure scripts).
455 config PKG_BUILD_PARALLEL
457 prompt "Compile certain packages parallelized"
460 This adds a -jX option to certain packages that are known to
461 behave well for parallel build. By default the package make processes
462 use the main jobserver, in which case this option only takes effect
463 when you add -jX to the make command.
465 If you are unsure, select N.
467 config PKG_BUILD_USE_JOBSERVER
469 prompt "Use top-level make jobserver for packages"
470 depends on PKG_BUILD_PARALLEL
473 This passes the main make process jobserver fds to package builds,
474 enabling full parallelization across different packages
476 Note that disabling this may overcommit CPU resources depending on the
477 -j level of the main make process, the number of package
478 submake jobs selected below and the number of actual CPUs present.
479 Example: If the main make is passed a -j4 and the submake -j
480 is also set to 4, we may end up with 16 parallel make processes
484 config PKG_BUILD_JOBS
486 prompt "Number of package submake jobs (2-512)"
489 depends on PKG_BUILD_PARALLEL && !PKG_BUILD_USE_JOBSERVER
491 The number of jobs (-jX) to pass to packages submake.
493 config PKG_DEFAULT_PARALLEL
495 prompt "Parallelize the default package build rule (May break build)"
496 depends on PKG_BUILD_PARALLEL
500 Always set the default package build rules to parallel build.
502 WARNING: This may break build or kill your cat, as it builds
503 packages with multiple jobs that are probably not tested in
504 a parallel build environment.
506 Only say Y, if you don't mind fixing broken packages.
507 Before reporting build bugs, set this to N and re-run the build.
509 comment "Stripping options"
512 prompt "Binary stripping method"
513 default USE_STRIP if EXTERNAL_TOOLCHAIN
514 default USE_STRIP if USE_GLIBC || USE_EGLIBC
517 Select the binary stripping method you wish to use.
522 This will install unstripped binaries (useful for native compiling/debugging)
527 This will install binaries stripped using strip from binutils
537 This will install binaries stripped using sstrip
542 prompt "Strip arguments"
544 default "--strip-unneeded --remove-section=.comment --remove-section=.note" if DEBUG
545 default "--strip-all"
547 Specifies arguments passed to the strip command when stripping binaries
549 config STRIP_KERNEL_EXPORTS
550 bool "Strip unnecessary exports from the kernel image"
553 Reduces kernel size by stripping unused kernel exports from the kernel image
554 Note that this might make the kernel incompatible with any kernel modules that
555 were not selected at the time the kernel image was created
558 bool "Strip unnecessary functions from libraries"
560 Reduces libraries to only those functions that are necessary for using all
561 selected packages (including those selected as <M>)
562 Note that this will make the system libraries incompatible with most of the packages
563 that are not selected during the build process
567 prompt "Preferred standard C++ library"
568 default USE_LIBSTDCXX if USE_EGLIBC
571 Select the preferred standard C++ library for all packages that support this.
584 bool "Advanced configuration options (for developers)"
588 bool "Show broken platforms / packages" if DEVEL
591 config DOWNLOAD_FOLDER
592 string "Download folder" if DEVEL
596 string "Local mirror for source packages" if DEVEL
600 bool "Automatic rebuild of packages" if DEVEL
603 Automatically rebuild packages when their files change
606 string "Build suffix to append to the BUILD_DIR variable" if DEVEL
609 Build suffix to append to the BUILD_DIR variable, i.e: build_dir_suffix
611 config TARGET_ROOTFS_DIR
612 string "Override the default TARGET_ROOTFS_DIR variable" if DEVEL
615 Override the default TARGET_ROOTFS_DIR variable content $(BUILD_DIR) with custom path.
616 Use this option to re-define the location of the target root file system directory.
619 bool "Use ccache" if DEVEL
622 Compiler cache; see http://ccache.samba.org/
624 config EXTERNAL_KERNEL_TREE
625 string "Use external kernel tree" if DEVEL
628 config KERNEL_GIT_CLONE_URI
629 string "Enter git repository to clone" if DEVEL
632 Enter the full git repository path i.e.:
633 git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
634 This will create a git clone of the kernel in your build
637 config KERNEL_GIT_LOCAL_REPOSITORY
638 string "Enter path to local reference repository" if DEVEL
641 Enter a full pathname to a local reference git repository.
642 In this instance, the --refererence option of git clone will
643 be used thus creating a quick local clone of your repo.
646 bool "Enable log files during build process" if DEVEL
648 If enabled log files will be written to the ./log directory
650 config SRC_TREE_OVERRIDE
651 bool "Enable package source tree override" if DEVEL
653 If enabled, you can force a package to use a git tree as source
654 code instead of the normal tarball. Create a symlink 'git-src'
655 in the package directory, pointing to the .git tree that you want
656 to pull the source code from
658 menuconfig TARGET_OPTIONS
659 bool "Target Options" if DEVEL
661 config TARGET_OPTIMIZATION
662 string "Target Optimizations" if TARGET_OPTIONS
663 default DEFAULT_TARGET_OPTIMIZATION
665 Optimizations to use when building for the target host.
668 bool "Use software floating point by default" if TARGET_OPTIONS
670 depends on (arm || armeb || powerpc || mipsel || mips) && !HAS_FPU
672 If your target CPU does not have a Floating Point Unit (FPU) or a
673 kernel FPU emulator, but you still wish to support floating point
674 functions, then everything will need to be compiled with soft floating
675 point support (-msoft-float).
677 Most people will answer N.
679 source "toolchain/Config.in"
681 source "target/imagebuilder/Config.in"
682 source "target/sdk/Config.in"
683 source "target/toolchain/Config.in"
685 source "tmp/.config-package.in"