Config.in 19 KB

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  1. #
  2. mainmenu "Buildroot $BR2_VERSION Configuration"
  3. config BR2_HAVE_DOT_CONFIG
  4. bool
  5. default y
  6. config BR2_VERSION
  7. string
  8. option env="BR2_VERSION_FULL"
  9. config BR2_HOSTARCH
  10. string
  11. option env="HOSTARCH"
  12. config BR2_EXTERNAL
  13. string
  14. option env="BR2_EXTERNAL"
  15. # Hidden boolean selected by packages in need of Java in order to build
  16. # (example: xbmc)
  17. config BR2_NEEDS_HOST_JAVA
  18. bool
  19. # Hidden boolean selected by packages in need of javac in order to build
  20. # (example: classpath)
  21. config BR2_NEEDS_HOST_JAVAC
  22. bool
  23. # Hidden boolean selected by packages in need of jar in order to build
  24. # (example: classpath)
  25. config BR2_NEEDS_HOST_JAR
  26. bool
  27. # Hidden boolean selected by pre-built packages for x86, when they
  28. # need to run on x86-64 machines (example: pre-built external
  29. # toolchains, binary tools like SAM-BA, etc.).
  30. config BR2_HOSTARCH_NEEDS_IA32_LIBS
  31. bool
  32. # Hidden boolean selected by packages that need to build 32 bits
  33. # binaries with the host compiler, even on 64 bits build machines (e.g
  34. # bootloaders).
  35. config BR2_HOSTARCH_NEEDS_IA32_COMPILER
  36. bool
  37. source "arch/Config.in"
  38. menu "Build options"
  39. menu "Commands"
  40. config BR2_WGET
  41. string "Wget command"
  42. default "wget --passive-ftp -nd -t 3"
  43. config BR2_SVN
  44. string "Subversion (svn) command"
  45. default "svn"
  46. config BR2_BZR
  47. string "Bazaar (bzr) command"
  48. default "bzr"
  49. config BR2_GIT
  50. string "Git command"
  51. default "git"
  52. config BR2_CVS
  53. string "CVS command"
  54. default "cvs"
  55. config BR2_LOCALFILES
  56. string "Local files retrieval command"
  57. default "cp"
  58. config BR2_SCP
  59. string "Secure copy (scp) command"
  60. default "scp"
  61. config BR2_SSH
  62. string "Secure shell (ssh) command"
  63. default "ssh"
  64. config BR2_HG
  65. string "Mercurial (hg) command"
  66. default "hg"
  67. config BR2_ZCAT
  68. string "zcat command"
  69. default "gzip -d -c"
  70. help
  71. Command to be used to extract a gzip'ed file to stdout.
  72. zcat is identical to gunzip -c except that the former may
  73. not be available on your system.
  74. Default is "gzip -d -c"
  75. Other possible values include "gunzip -c" or "zcat".
  76. config BR2_BZCAT
  77. string "bzcat command"
  78. default "bzcat"
  79. help
  80. Command to be used to extract a bzip2'ed file to stdout.
  81. bzcat is identical to bunzip2 -c except that the former may
  82. not be available on your system.
  83. Default is "bzcat"
  84. Other possible values include "bunzip2 -c" or "bzip2 -d -c".
  85. config BR2_XZCAT
  86. string "xzcat command"
  87. default "xzcat"
  88. help
  89. Command to be used to extract a xz'ed file to stdout.
  90. Default is "xzcat"
  91. config BR2_TAR_OPTIONS
  92. string "Tar options"
  93. default ""
  94. help
  95. Options to pass to tar when extracting the sources.
  96. E.g. " -v --exclude='*.svn*'" to exclude all .svn internal files
  97. and to be verbose.
  98. endmenu
  99. config BR2_DEFCONFIG_FROM_ENV
  100. string
  101. option env="BR2_DEFCONFIG"
  102. config BR2_DEFCONFIG
  103. string "Location to save buildroot config"
  104. default BR2_DEFCONFIG_FROM_ENV if BR2_DEFCONFIG_FROM_ENV != ""
  105. default "$(CONFIG_DIR)/defconfig"
  106. help
  107. When running 'make savedefconfig', the defconfig file will be saved
  108. in this location.
  109. config BR2_DL_DIR
  110. string "Download dir"
  111. default "$(TOPDIR)/dl"
  112. help
  113. Directory to store all the source files that we need to fetch.
  114. If the Linux shell environment has defined the BR2_DL_DIR
  115. environment variable, then this overrides this configuration item.
  116. The default is $(TOPDIR)/dl
  117. config BR2_HOST_DIR
  118. string "Host dir"
  119. default "$(BASE_DIR)/host"
  120. help
  121. Directory to store all the binary files that are built for the host.
  122. This includes the cross compilation toolchain when building the
  123. internal buildroot toolchain.
  124. The default is $(BASE_DIR)/host
  125. menu "Mirrors and Download locations"
  126. config BR2_PRIMARY_SITE
  127. string "Primary download site"
  128. default ""
  129. help
  130. Primary site to download from. If this option is set then buildroot
  131. will try to download package source first from this site and try the
  132. default if the file is not found.
  133. Valid URIs are URIs recognized by $(WGET) and scp URIs of the form
  134. scp://[user@]host:path.
  135. NOTE: This works for all packages using the central package
  136. infrastructure (generic, autotools, cmake, ...)
  137. config BR2_PRIMARY_SITE_ONLY
  138. bool "Only allow downloads from primary download site"
  139. depends on BR2_PRIMARY_SITE != ""
  140. help
  141. If this option is enabled, downloads will only be attempted
  142. from the primary download site. Other locations, like the
  143. package's official download location or the backup download
  144. site, will not be considered. Therefore, if the package is
  145. not present on the primary site, the download fails.
  146. This is useful for project developers who want to ensure
  147. that the project can be built even if the upstream tarball
  148. locations disappear.
  149. if !BR2_PRIMARY_SITE_ONLY
  150. config BR2_BACKUP_SITE
  151. string "Backup download site"
  152. default "http://sources.buildroot.net"
  153. help
  154. Backup site to download from. If this option is set then buildroot
  155. will fall back to download package sources from here if the
  156. normal location fails.
  157. config BR2_KERNEL_MIRROR
  158. string "Kernel.org mirror"
  159. default "https://www.kernel.org/pub"
  160. help
  161. kernel.org is mirrored on a number of servers around the world.
  162. The following allows you to select your preferred mirror.
  163. Have a look on the kernel.org site for a list of mirrors, then enter
  164. the URL to the base directory. Examples:
  165. http://www.XX.kernel.org/pub (XX = country code)
  166. http://mirror.aarnet.edu.au/pub/ftp.kernel.org
  167. config BR2_GNU_MIRROR
  168. string "GNU Software mirror"
  169. default "http://ftp.gnu.org/pub/gnu"
  170. help
  171. GNU has multiple software mirrors scattered around the world.
  172. The following allows you to select your preferred mirror.
  173. Have a look on the gnu.org site for a list of mirrors, then enter
  174. the URL to the base directory. Examples:
  175. http://ftp.gnu.org/pub/gnu
  176. http://mirror.aarnet.edu.au/pub/gnu
  177. endif
  178. config BR2_LUAROCKS_MIRROR
  179. string "LuaRocks mirror"
  180. default "http://rocks.moonscript.org"
  181. help
  182. LuaRocks repository.
  183. See http://luarocks.org
  184. config BR2_CPAN_MIRROR
  185. string "CPAN mirror (Perl packages)"
  186. default "http://cpan.metacpan.org"
  187. help
  188. CPAN (Comprehensive Perl Archive Network) is a repository
  189. of Perl packages. It has multiple software mirrors scattered
  190. around the world. This option allows you to select a mirror.
  191. The list of mirrors is available at:
  192. http://search.cpan.org/mirror
  193. endmenu
  194. config BR2_JLEVEL
  195. int "Number of jobs to run simultaneously (0 for auto)"
  196. default "0"
  197. help
  198. Number of jobs to run simultaneously. If 0, determine
  199. automatically according to number of CPUs on the host
  200. system.
  201. config BR2_CCACHE
  202. bool "Enable compiler cache"
  203. help
  204. This option will enable the use of ccache, a compiler
  205. cache. It will cache the result of previous builds to speed
  206. up future builds. By default, the cache is stored in
  207. $HOME/.buildroot-ccache.
  208. Note that Buildroot does not try to invalidate the cache
  209. contents when the compiler changes in an incompatible
  210. way. Therefore, if you make a change to the compiler version
  211. and/or configuration, you are responsible for purging the
  212. ccache cache by removing the $HOME/.buildroot-ccache
  213. directory.
  214. if BR2_CCACHE
  215. config BR2_CCACHE_DIR
  216. string "Compiler cache location"
  217. default "$(HOME)/.buildroot-ccache"
  218. help
  219. Where ccache should store cached files.
  220. config BR2_CCACHE_INITIAL_SETUP
  221. string "Compiler cache initial setup"
  222. help
  223. Initial ccache settings to apply, such as --max-files or --max-size.
  224. For example, if your project is known to require more space than the
  225. default max cache size, then you might want to increase the cache size
  226. to a suitable amount using the -M (--max-size) option.
  227. The string you specify here is passed verbatim to ccache. Refer to
  228. ccache documentation for more details.
  229. These initial settings are applied after ccache has been compiled.
  230. endif
  231. config BR2_DEPRECATED
  232. bool "Show options and packages that are deprecated or obsolete"
  233. help
  234. This option shows outdated/obsolete versions of packages and
  235. options that are otherwise hidden.
  236. if BR2_DEPRECATED
  237. config BR2_DEPRECATED_SINCE_2014_02
  238. bool
  239. default y
  240. config BR2_DEPRECATED_SINCE_2014_05
  241. bool
  242. default y
  243. config BR2_DEPRECATED_SINCE_2014_08
  244. bool
  245. default y
  246. config BR2_DEPRECATED_SINCE_2015_02
  247. bool
  248. default y
  249. endif
  250. config BR2_ENABLE_DEBUG
  251. bool "build packages with debugging symbols"
  252. help
  253. Build packages with debugging symbols enabled. All libraries
  254. and binaries in the 'staging' directory will have debugging
  255. symbols, which allows remote debugging even if libraries and
  256. binaries are stripped on the target. Whether libraries and
  257. binaries are stripped on the target is controlled by the
  258. BR2_STRIP_* options below.
  259. if BR2_ENABLE_DEBUG
  260. choice
  261. prompt "gcc debug level"
  262. default BR2_DEBUG_2
  263. help
  264. Set the debug level for gcc
  265. config BR2_DEBUG_1
  266. bool "debug level 1"
  267. help
  268. Debug level 1 produces minimal information, enough
  269. for making backtraces in parts of the program that
  270. you don't plan to debug. This includes descriptions
  271. of functions and external variables, but no information
  272. about local variables and no line numbers.
  273. config BR2_DEBUG_2
  274. bool "debug level 2"
  275. help
  276. The default gcc debug level is 2
  277. config BR2_DEBUG_3
  278. bool "debug level 3"
  279. help
  280. Level 3 includes extra information, such as all the
  281. macro definitions present in the program. Some debuggers
  282. support macro expansion when you use -g3.
  283. endchoice
  284. endif
  285. choice
  286. prompt "strip command for binaries on target"
  287. default BR2_STRIP_strip
  288. config BR2_STRIP_strip
  289. bool "strip"
  290. depends on !BR2_PACKAGE_HOST_ELF2FLT
  291. help
  292. Binaries and libraries in the target filesystem will be
  293. stripped using the normal 'strip' command. This allows to
  294. save space, mainly by removing debugging symbols. Debugging
  295. symbols on the target are needed for native debugging, but
  296. not when remote debugging is used.
  297. config BR2_STRIP_sstrip
  298. bool "sstrip"
  299. select BR2_PACKAGE_SSTRIP_HOST
  300. depends on !BR2_PACKAGE_HOST_ELF2FLT
  301. depends on BR2_DEPRECATED_SINCE_2014_05
  302. help
  303. Binaries and libraries in the target filesystem will be
  304. stripped using the 'sstrip' command, which strips a little
  305. bit more than the traditional 'strip' command. This allows to
  306. save space, mainly by removing debugging symbols. Debugging
  307. symbols on the target are needed for native debugging, but
  308. not when remote debugging is used.
  309. config BR2_STRIP_none
  310. bool "none"
  311. help
  312. Do not strip binaries and libraries in the target
  313. filesystem.
  314. endchoice
  315. config BR2_STRIP_EXCLUDE_FILES
  316. string "executables that should not be stripped"
  317. depends on !BR2_STRIP_none
  318. default ""
  319. help
  320. You may specify a space-separated list of binaries and libraries
  321. here that should not be stripped on the target.
  322. config BR2_STRIP_EXCLUDE_DIRS
  323. string "directories that should be skipped when stripping"
  324. depends on !BR2_STRIP_none
  325. default ""
  326. help
  327. You may specify a space-separated list of directories that should
  328. be skipped when stripping. Binaries and libraries in these
  329. directories will not be touched.
  330. The directories should be specified relative to the target directory,
  331. without leading slash.
  332. choice
  333. prompt "gcc optimization level"
  334. default BR2_OPTIMIZE_S
  335. help
  336. Set the optimization level for gcc
  337. config BR2_OPTIMIZE_0
  338. bool "optimization level 0"
  339. help
  340. Do not optimize. This is the default.
  341. config BR2_OPTIMIZE_1
  342. bool "optimization level 1"
  343. help
  344. Optimize. Optimizing compilation takes somewhat more time,
  345. and a lot more memory for a large function. With -O, the
  346. compiler tries to reduce code size and execution time,
  347. without performing any optimizations that take a great deal
  348. of compilation time. -O turns on the following optimization
  349. flags: -fdefer-pop -fdelayed-branch -fguess-branch-probability
  350. -fcprop-registers -floop-optimize -fif-conversion
  351. -fif-conversion2 -ftree-ccp -ftree-dce -ftree-dominator-opts
  352. -ftree-dse -ftree-ter -ftree-lrs -ftree-sra -ftree-copyrename
  353. -ftree-fre -ftree-ch -funit-at-a-time -fmerge-constants
  354. -O also turns on -fomit-frame-pointer on machines where doing
  355. so does not interfere with debugging.
  356. config BR2_OPTIMIZE_2
  357. bool "optimization level 2"
  358. help
  359. Optimize even more. GCC performs nearly all supported optimizations
  360. that do not involve a space-speed tradeoff. The compiler does not
  361. perform loop unrolling or function inlining when you specify -O2.
  362. As compared to -O, this option increases both compilation time and
  363. the performance of the generated code. -O2 turns on all optimization
  364. flags specified by -O. It also turns on the following optimization
  365. flags: -fthread-jumps -fcrossjumping -foptimize-sibling-calls
  366. -fcse-follow-jumps -fcse-skip-blocks -fgcse -fgcse-lm
  367. -fexpensive-optimizations -fstrength-reduce -frerun-cse-after-loop
  368. -frerun-loop-opt -fcaller-saves -fpeephole2 -fschedule-insns
  369. -fschedule-insns2 -fsched-interblock -fsched-spec -fregmove
  370. -fstrict-aliasing -fdelete-null-pointer-checks -freorder-blocks
  371. -freorder-functions -falign-functions -falign-jumps -falign-loops
  372. -falign-labels -ftree-vrp -ftree-pre
  373. Please note the warning under -fgcse about invoking -O2 on programs
  374. that use computed gotos.
  375. config BR2_OPTIMIZE_3
  376. bool "optimization level 3"
  377. help
  378. Optimize yet more. -O3 turns on all optimizations specified by -O2
  379. and also turns on the -finline-functions, -funswitch-loops and
  380. -fgcse-after-reload options.
  381. config BR2_OPTIMIZE_S
  382. bool "optimize for size"
  383. help
  384. Optimize for size. -Os enables all -O2 optimizations that do not
  385. typically increase code size. It also performs further optimizations
  386. designed to reduce code size. -Os disables the following optimization
  387. flags: -falign-functions -falign-jumps -falign-loops -falign-labels
  388. -freorder-blocks -freorder-blocks-and-partition -fprefetch-loop-arrays
  389. -ftree-vect-loop-version
  390. endchoice
  391. config BR2_GOOGLE_BREAKPAD_ENABLE
  392. bool "Enable google-breakpad support"
  393. select BR2_PACKAGE_GOOGLE_BREAKPAD
  394. depends on BR2_INSTALL_LIBSTDCPP
  395. depends on BR2_TOOLCHAIN_USES_GLIBC
  396. depends on BR2_PACKAGE_GOOGLE_BREAKPAD_ARCH_SUPPORTS
  397. help
  398. This option will enable the use of google breakpad, a
  399. library and tool suite that allows you to distribute an
  400. application to users with compiler-provided debugging
  401. information removed, record crashes in compact "minidump"
  402. files, send them back to your server and produce C and C++
  403. stack traces from these minidumps. Breakpad can also write
  404. minidumps on request for programs that have not crashed.
  405. if BR2_GOOGLE_BREAKPAD_ENABLE
  406. config BR2_GOOGLE_BREAKPAD_INCLUDE_FILES
  407. string "List of executables and libraries to extract symbols from"
  408. default ""
  409. help
  410. You may specify a space-separated list of binaries and
  411. libraries with full paths relative to $(TARGET_DIR) of which
  412. debug symbols will be dumped for further use with google
  413. breakpad.
  414. A directory structure that can be used by minidump-stackwalk
  415. will be created at:
  416. $(STAGING_DIR)/usr/share/google-breakpad-symbols
  417. endif
  418. config BR2_ENABLE_SSP
  419. bool "build code with Stack Smashing Protection"
  420. depends on BR2_TOOLCHAIN_HAS_SSP
  421. help
  422. Enable stack smashing protection support using GCCs
  423. -fstack-protector-all option.
  424. See http://www.linuxfromscratch.org/hints/downloads/files/ssp.txt
  425. for details.
  426. Note that this requires the toolchain to have SSP
  427. support. This is always the case for glibc and eglibc
  428. toolchain, but is optional in uClibc toolchains.
  429. comment "enabling Stack Smashing Protection requires support in the toolchain"
  430. depends on !BR2_TOOLCHAIN_HAS_SSP
  431. choice
  432. bool "libraries"
  433. default BR2_SHARED_LIBS if BR2_BINFMT_SUPPORTS_SHARED
  434. default BR2_STATIC_LIBS if !BR2_BINFMT_SUPPORTS_SHARED
  435. help
  436. Select the type of libraries you want to use on the target.
  437. The default is to build dynamic libraries and use those on
  438. the target filesystem, except when the architecture and/or
  439. the selected binary format does not support shared
  440. libraries.
  441. config BR2_STATIC_LIBS
  442. bool "static only"
  443. help
  444. Build and use only static libraries. No shared libraries
  445. will be instaled on the target. This potentially increases
  446. your code size and should only be used if you know what you
  447. are doing. Note that some packages may not be available when
  448. this option is enabled, due to their need for dynamic
  449. library support.
  450. config BR2_SHARED_LIBS
  451. bool "shared only"
  452. depends on BR2_BINFMT_SUPPORTS_SHARED
  453. help
  454. Build and use only shared libraries. This is the recommended
  455. solution as it saves space and build time.
  456. config BR2_SHARED_STATIC_LIBS
  457. bool "both static and shared"
  458. depends on BR2_BINFMT_SUPPORTS_SHARED
  459. help
  460. Build both shared and static libraries, but link executables
  461. dynamically. While building both shared and static libraries
  462. take more time and more disk space, having static libraries
  463. may be useful to link some of the applications statically.
  464. endchoice
  465. config BR2_PACKAGE_OVERRIDE_FILE
  466. string "location of a package override file"
  467. default "$(CONFIG_DIR)/local.mk"
  468. help
  469. A package override file is a short makefile that contains
  470. variable definitions of the form <pkg>_OVERRIDE_SRCDIR,
  471. which allows to tell Buildroot to use an existing directory
  472. as the source directory for a particular package. See the
  473. Buildroot documentation for more details on this feature.
  474. config BR2_GLOBAL_PATCH_DIR
  475. string "global patch directories"
  476. help
  477. You may specify a space separated list of one or more directories
  478. containing global package patches. For a specific version
  479. <packageversion> of a specific package <packagename>, patches are
  480. applied as follows:
  481. First, the default Buildroot patch set for the package is applied
  482. from the package's directory in Buildroot.
  483. Then for every directory - <global-patch-dir> - that exists in
  484. BR2_GLOBAL_PATCH_DIR, if the directory
  485. <global-patch-dir>/<packagename>/<packageversion>/ exists, then all
  486. *.patch files in this directory will be applied.
  487. Otherwise, if the directory <global-patch-dir>/<packagename> exists,
  488. then all *.patch files in the directory will be applied.
  489. menu "Advanced"
  490. config BR2_COMPILER_PARANOID_UNSAFE_PATH
  491. bool "paranoid check of library/header paths"
  492. help
  493. By default, when this option is disabled, when the Buildroot
  494. cross-compiler will encounter an unsafe library or header
  495. path (such as /usr/include, or /usr/lib), the compiler will
  496. display a warning.
  497. By enabling this option, this warning is turned into an
  498. error, which will completely abort the build when such
  499. unsafe paths are encountered.
  500. Note that this mechanism is available for both the internal
  501. toolchain (through gcc and binutils patches) and external
  502. toolchain backends (through the external toolchain wrapper).
  503. endmenu
  504. endmenu
  505. source "toolchain/Config.in"
  506. source "system/Config.in"
  507. source "linux/Config.in"
  508. source "package/Config.in"
  509. source "fs/Config.in"
  510. source "boot/Config.in"
  511. source "package/Config.in.host"
  512. source "Config.in.legacy"
  513. menu "User-provided options"
  514. depends on BR2_EXTERNAL != "support/dummy-external"
  515. source "$BR2_EXTERNAL/Config.in"
  516. endmenu