busybox: remove the -static-libgcc flag, saves a few kb
[openwrt.git] / Config.in
1 # Copyright (C) 2006-2010 OpenWrt.org
2 #
3 # This is free software, licensed under the GNU General Public License v2.
4 # See /LICENSE for more information.
5 #
6
7 mainmenu "OpenWrt Configuration"
8
9 config HAVE_DOT_CONFIG
10 bool
11 default y
12
13 source "target/Config.in"
14
15 menu "Target Images"
16
17 menuconfig TARGET_ROOTFS_INITRAMFS
18 bool "ramdisk"
19 default y if USES_INITRAMFS
20 help
21 Embed the rootfs into the kernel (initramfs)
22
23 choice
24 prompt "Compression"
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
29 help
30 Select ramdisk compression.
31
32 config TARGET_INITRAMFS_COMPRESSION_NONE
33 bool "none"
34
35 config TARGET_INITRAMFS_COMPRESSION_GZIP
36 bool "gzip"
37
38 config TARGET_INITRAMFS_COMPRESSION_BZIP2
39 bool "bzip2"
40
41 config TARGET_INITRAMFS_COMPRESSION_LZMA
42 bool "lzma"
43
44 config TARGET_INITRAMFS_COMPRESSION_LZO
45 bool "lzo"
46
47 config TARGET_INITRAMFS_COMPRESSION_XZ
48 bool "xz"
49 depends LINUX_2_6_38
50 endchoice
51
52 comment "Root filesystem archives"
53
54 config TARGET_ROOTFS_CPIOGZ
55 bool "cpio.gz"
56 default y if USES_CPIOGZ
57 help
58 Build a compressed cpio archive of the the root filesystem
59
60 config TARGET_ROOTFS_TARGZ
61 bool "tar.gz"
62 default y if USES_TARGZ
63 help
64 Build a compressed tar archive of the the root filesystem
65
66 comment "Root filesystem images"
67
68 config TARGET_ROOTFS_EXT4FS
69 bool "ext4"
70 default y if USES_EXT4
71 depends !TARGET_ROOTFS_INITRAMFS
72 help
73 Ext4 file system with some free space for uml images
74
75 config TARGET_ROOTFS_ISO
76 bool "iso"
77 default n
78 depends TARGET_ROOTFS_INITRAMFS && TARGET_x86
79 help
80 Create some bootable ISO image
81
82 config TARGET_ROOTFS_JFFS2
83 bool "jffs2"
84 default y if USES_JFFS2
85 depends !TARGET_ROOTFS_INITRAMFS
86 help
87 Build a jffs2 root filesystem
88
89 config TARGET_ROOTFS_SQUASHFS
90 bool "squashfs"
91 default y if USES_SQUASHFS
92 depends !TARGET_ROOTFS_INITRAMFS
93 help
94 Build a squashfs-lzma root filesystem
95
96 config TARGET_ROOTFS_UBIFS
97 bool "ubifs"
98 default y if USES_UBIFS
99 depends !TARGET_ROOTFS_INITRAMFS && USES_UBIFS
100 help
101 Build a ubifs root filesystem
102
103 comment "Image Options"
104
105 source "target/linux/*/image/Config.in"
106
107 config TARGET_ROOTFS_PARTSIZE
108 int "Root filesystem partition size (in MB)"
109 depends X86_GRUB_IMAGES || TARGET_ROOTFS_EXT4FS || TARGET_rb532
110 default 48
111 help
112 Allows you to change the root filesystem partition size
113
114 config TARGET_ROOTFS_MAXINODE
115 int "Maximum number of inodes in root filesystem"
116 depends TARGET_ROOTFS_EXT4FS
117 default 6000
118 help
119 Allows you to change the maximum number of inodes in the root filesystem
120
121 endmenu
122
123 menu "Global build settings"
124
125 config ALL
126 bool "Select all packages by default"
127 default n
128
129 comment "General build options"
130
131 config DISPLAY_SUPPORT
132 bool "Show packages that require graphics support (local or remote)"
133 default n
134
135 config BUILD_PATENTED
136 default y
137 bool "Compile with support for patented functionality"
138 help
139 When this option is disabled, software which provides patented functionality will not be built.
140 In case software provides optional support for patented functionality,
141 this optional support will get disabled for this package.
142
143 config BUILD_NLS
144 default n
145 bool "Compile with full language support"
146 help
147 When this option is enabled, packages are built with the full versions of iconv and GNU gettext
148 instead of the default OpenWrt stubs.
149
150 config SHADOW_PASSWORDS
151 bool
152 prompt "Enable shadow password support"
153 default y
154 help
155 Enable shadow password support.
156
157 config CLEAN_IPKG
158 bool
159 prompt "Remove ipkg/opkg status data files in final images"
160 default n
161 help
162 This removes all ipkg/opkg status data files from the target directory before building the root fs
163
164 config COLLECT_KERNEL_DEBUG
165 bool
166 prompt "Collect kernel debug information"
167 select KERNEL_DEBUG_INFO
168 default n
169 help
170 This collects debugging symbols from the kernel and all compiled modules.
171 Useful for release builds, so that kernel issues can be debugged offline later.
172
173 comment "Kernel build options"
174
175 config KERNEL_DEBUG_FS
176 bool "Compile the kernel with Debug FileSystem enabled"
177 default y
178 help
179 debugfs is a virtual file system that kernel developers use to put
180 debugging files into. Enable this option to be able to read and
181 write to these files.
182
183 config KERNEL_PROFILING
184 bool "Compile the kernel with profiling enabled"
185 default n
186 help
187 Enable the extended profiling support mechanisms used by profilers such
188 as OProfile.
189
190 config KERNEL_KALLSYMS
191 bool "Compile the kernel with symbol table information"
192 default n
193 help
194 This will give you more information in stack traces from kernel oopses
195
196 config KERNEL_DEBUG_KERNEL
197 bool
198 default n
199
200 config KERNEL_DEBUG_INFO
201 bool "Compile the kernel with debug information"
202 default n
203 select KERNEL_DEBUG_KERNEL
204 help
205 This will compile your kernel and modules with debug information.
206
207 config KERNEL_DEBUG_LL
208 bool
209 default n
210 depends on arm
211 help
212 ARM low level debugging
213
214 config KERNEL_EARLY_PRINTK
215 bool "Compile the kernel with early printk"
216 default n
217 depends on arm
218 select KERNEL_DEBUG_KERNEL
219 select KERNEL_DEBUG_LL if arm
220 help
221 Compile the kernel with early printk support.
222 This is only useful for debugging purposes to send messages
223 over the serial console in early boot.
224 Enable this to debug early boot problems.
225
226 config KERNEL_AIO
227 bool "Compile the kernel with asynchronous IO support"
228 default n
229
230 comment "Package build options"
231
232 config DEBUG
233 bool
234 prompt "Compile packages with debugging info"
235 default n
236 help
237 Adds -g3 to the CFLAGS
238
239 config IPV6
240 bool
241 prompt "Enable IPv6 support in packages"
242 default y
243 help
244 Enable IPV6 support in packages (passes --enable-ipv6 to configure scripts).
245
246 config PKG_BUILD_PARALLEL
247 bool
248 prompt "Compile certain packages parallelized"
249 default n
250 help
251 This adds a -jX option to certain packages that are known to
252 behave well for parallel build.
253
254 Note that this may overcommit CPU resources depending on the
255 -j level of the main make process, the number of package
256 submake jobs selected below and the number of actual CPUs present.
257 Example: If the main make is passed a -j4 and the submake -j
258 is also set to 4, we may end up with 16 parallel make processes
259 in the worst case.
260
261 You get maximum build performance, if you set the package build
262 jobs to the number of CPUs (cores) available and also start the main
263 make process with -jX, where X is the number of CPUs (cores).
264 However, make sure you have enough RAM available for
265 NR_CPUS to the power of two (NR_CPUS^2) make jobs.
266
267 If you are unsure, select N.
268
269 config PKG_BUILD_JOBS
270 int
271 prompt "Number of package submake jobs (2-512)"
272 range 2 512
273 default 2
274 depends on PKG_BUILD_PARALLEL
275 help
276 The number of jobs (-jX) to pass to packages submake.
277
278 config PKG_DEFAULT_PARALLEL
279 bool
280 prompt "Parallelize the default package build rule (May break build)"
281 depends on PKG_BUILD_PARALLEL
282 default n
283 help
284 Always set the default package build rules to parallel build.
285
286 WARNING: This may break build or kill your cat, as it builds
287 packages with multiple jobs that are probably not tested in
288 a parallel build environment.
289
290 Only say Y, if you don't mind fixing broken packages.
291 Before reporting build bugs, set this to N and re-run the build.
292
293 config TOOLCHAIN_PARALLEL
294 bool
295 prompt "Parallelize the toolchain build (May break build)"
296 depends on PKG_BUILD_PARALLEL
297 default n
298 help
299 Build the toolchain with parallel make jobs.
300 This speeds up the toolchain build on SMP machines, but may
301 break the build for certain toolchain versions.
302
303 If you say Y, toolchain build might break.
304 Before reporting build bugs, set this to N and re-run the build.
305
306 comment "Stripping options"
307
308 choice
309 prompt "Binary stripping method"
310 default USE_STRIP if EXTERNAL_TOOLCHAIN
311 default USE_STRIP if USE_GLIBC || USE_EGLIBC
312 default USE_SSTRIP
313 help
314 Select the binary stripping method you wish to use.
315
316 config NO_STRIP
317 bool "none"
318 help
319 This will install unstripped binaries (useful for native compiling/debugging)
320
321 config USE_STRIP
322 bool "strip"
323 help
324 This will install binaries stripped using strip from binutils
325
326
327 config USE_SSTRIP
328 bool "sstrip"
329 depends !DEBUG
330 depends !USE_GLIBC
331 depends !USE_EGLIBC
332 help
333 This will install binaries stripped using sstrip
334 endchoice
335
336 config STRIP_ARGS
337 string
338 prompt "Strip arguments"
339 depends USE_STRIP
340 default "--strip-unneeded --remove-section=.comment --remove-section=.note" if DEBUG
341 default "--strip-all"
342 help
343 Specifies arguments passed to the strip command when stripping binaries
344
345 config STRIP_KERNEL_EXPORTS
346 bool "Strip unnecessary exports from the kernel image"
347 help
348 Reduces kernel size by stripping unused kernel exports from the kernel image
349 Note that this might make the kernel incompatible with any kernel modules that
350 were not selected at the time the kernel image was created
351
352 config USE_MKLIBS
353 bool "Strip unnecessary functions from libraries"
354 help
355 Reduces libraries to only those functions that are necessary for using all
356 selected packages (including those selected as <M>)
357 Note that this will make the system libraries incompatible with most of the packages
358 that are not selected during the build process
359
360 endmenu
361
362 menuconfig DEVEL
363 bool "Advanced configuration options (for developers)"
364 default n
365
366 config BROKEN
367 bool "Show broken platforms / packages" if DEVEL
368 default n
369
370 config DOWNLOAD_FOLDER
371 string "Download folder" if DEVEL
372 default ""
373
374 config LOCALMIRROR
375 string "Local mirror for source packages" if DEVEL
376 default ""
377
378 config AUTOREBUILD
379 bool "Automatic rebuild of packages" if DEVEL
380 default y
381 help
382 Automatically rebuild packages when their files change
383
384 config BUILD_SUFFIX
385 string "Build suffix to append to the BUILD_DIR variable" if DEVEL
386 default ""
387 help
388 Build suffix to append to the BUILD_DIR variable, i.e: build_dir_suffix
389
390 config TARGET_ROOTFS_DIR
391 string "Override the default TARGET_ROOTFS_DIR variable" if DEVEL
392 default ""
393 help
394 Override the default TARGET_ROOTFS_DIR variable content $(BUILD_DIR) with custom path.
395 Use this option to re-define the location of the target root file system directory.
396
397 config CCACHE
398 bool "Use ccache" if DEVEL
399 default n
400 help
401 Compiler cache; see http://ccache.samba.org/
402
403 config EXTERNAL_KERNEL_TREE
404 string "Use external kernel tree" if DEVEL
405 default ""
406
407 config KERNEL_GIT_CLONE_URI
408 string "Enter git repository to clone" if DEVEL
409 default ""
410 help
411 Enter the full git repository path i.e.:
412 git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
413 This will create a git clone of the kernel in your build
414 directory.
415
416 config KERNEL_GIT_LOCAL_REPOSITORY
417 string "Enter path to local reference repository" if DEVEL
418 default ""
419 help
420 Enter a full pathname to a local reference git repository.
421 In this instance, the --refererence option of git clone will
422 be used thus creating a quick local clone of your repo.
423
424 menuconfig TARGET_OPTIONS
425 bool "Target Options" if DEVEL
426
427 config TARGET_OPTIMIZATION
428 string "Target Optimizations" if TARGET_OPTIONS
429 default DEFAULT_TARGET_OPTIMIZATION
430 help
431 Optimizations to use when building for the target host.
432
433 config SOFT_FLOAT
434 bool "Use software floating point by default" if TARGET_OPTIONS
435 default y
436 depends on (arm || armeb || powerpc || mipsel || mips) && !HAS_FPU
437 help
438 If your target CPU does not have a Floating Point Unit (FPU) or a
439 kernel FPU emulator, but you still wish to support floating point
440 functions, then everything will need to be compiled with soft floating
441 point support (-msoft-float).
442
443 Most people will answer N.
444
445 source "toolchain/Config.in"
446
447 source "target/imagebuilder/Config.in"
448 source "target/sdk/Config.in"
449 source "target/toolchain/Config.in"
450
451 source "tmp/.config-package.in"
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