Config.in 25 KB

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  1. #
  2. # For a description of the syntax of this configuration file,
  3. # see docs/Kconfig-language.txt.
  4. #
  5. config BUSYBOX_CONFIG_HAVE_DOT_CONFIG
  6. bool
  7. default BUSYBOX_DEFAULT_HAVE_DOT_CONFIG
  8. menu "Settings"
  9. config BUSYBOX_CONFIG_DESKTOP
  10. bool "Enable compatibility for full-blown desktop systems (8kb)"
  11. default BUSYBOX_DEFAULT_DESKTOP
  12. help
  13. Enable applet options and features which are not essential.
  14. Many applet options have dedicated config options to (de)select them
  15. under that applet; this options enables those options which have no
  16. individual config item for them.
  17. Select this if you plan to use busybox on full-blown desktop machine
  18. with common Linux distro, which needs higher level of command-line
  19. compatibility.
  20. If you are preparing your build to be used on an embedded box
  21. where you have tighter control over the entire set of userspace
  22. tools, you can unselect this option for smaller code size.
  23. config BUSYBOX_CONFIG_EXTRA_COMPAT
  24. bool "Provide compatible behavior for rare corner cases (bigger code)"
  25. default BUSYBOX_DEFAULT_EXTRA_COMPAT
  26. help
  27. This option makes grep, sed etc handle rare corner cases
  28. (embedded NUL bytes and such). This makes code bigger and uses
  29. some GNU extensions in libc. You probably only need this option
  30. if you plan to run busybox on desktop.
  31. config BUSYBOX_CONFIG_FEDORA_COMPAT
  32. bool "Building for Fedora distribution"
  33. default BUSYBOX_DEFAULT_FEDORA_COMPAT
  34. help
  35. This option makes some tools behave like they do on Fedora.
  36. At the time of this writing (2017-08) this only affects uname:
  37. normally, uname -p (processor) and uname -i (platform)
  38. are shown as "unknown", but with this option uname -p
  39. shows the same string as uname -m (machine type),
  40. and so does uname -i unless machine type is i486/i586/i686 -
  41. then uname -i shows "i386".
  42. config BUSYBOX_CONFIG_INCLUDE_SUSv2
  43. bool "Enable obsolete features removed before SUSv3"
  44. default BUSYBOX_DEFAULT_INCLUDE_SUSv2
  45. help
  46. This option will enable backwards compatibility with SuSv2,
  47. specifically, old-style numeric options ('command -1 <file>')
  48. will be supported in head, tail, and fold. (Note: should
  49. affect renice too.)
  50. config BUSYBOX_CONFIG_LONG_OPTS
  51. bool "Support --long-options"
  52. default BUSYBOX_DEFAULT_LONG_OPTS
  53. help
  54. Enable this if you want busybox applets to use the gnu --long-option
  55. style, in addition to single character -a -b -c style options.
  56. config BUSYBOX_CONFIG_SHOW_USAGE
  57. bool "Show applet usage messages"
  58. default BUSYBOX_DEFAULT_SHOW_USAGE
  59. help
  60. Enabling this option, applets will show terse help messages
  61. when invoked with wrong arguments.
  62. If you do not want to show any (helpful) usage message when
  63. issuing wrong command syntax, you can say 'N' here,
  64. saving approximately 7k.
  65. config BUSYBOX_CONFIG_FEATURE_VERBOSE_USAGE
  66. bool "Show verbose applet usage messages"
  67. default BUSYBOX_DEFAULT_FEATURE_VERBOSE_USAGE
  68. depends on BUSYBOX_CONFIG_SHOW_USAGE
  69. help
  70. All applets will show verbose help messages when invoked with --help.
  71. This will add a lot of text to the binary.
  72. config BUSYBOX_CONFIG_FEATURE_COMPRESS_USAGE
  73. bool "Store applet usage messages in compressed form"
  74. default BUSYBOX_DEFAULT_FEATURE_COMPRESS_USAGE
  75. depends on BUSYBOX_CONFIG_SHOW_USAGE
  76. help
  77. Store usage messages in .bz2 compressed form, uncompress them
  78. on-the-fly when "APPLET --help" is run.
  79. If you have a really tiny busybox with few applets enabled (and
  80. bunzip2 isn't one of them), the overhead of the decompressor might
  81. be noticeable. Also, if you run executables directly from ROM
  82. and have very little memory, this might not be a win. Otherwise,
  83. you probably want this.
  84. config BUSYBOX_CONFIG_LFS
  85. bool
  86. default BUSYBOX_DEFAULT_LFS
  87. help
  88. If you need to work with large files, enable this option.
  89. This will have no effect if your kernel or your C
  90. library lacks large file support for large files. Some of the
  91. programs that can benefit from large file support include dd, gzip,
  92. cp, mount, tar.
  93. config BUSYBOX_CONFIG_PAM
  94. bool "Support PAM (Pluggable Authentication Modules)"
  95. default BUSYBOX_DEFAULT_PAM
  96. help
  97. Use PAM in some applets (currently login and httpd) instead
  98. of direct access to password database.
  99. config BUSYBOX_CONFIG_FEATURE_DEVPTS
  100. bool "Use the devpts filesystem for Unix98 PTYs"
  101. default BUSYBOX_DEFAULT_FEATURE_DEVPTS
  102. help
  103. Enable if you want to use Unix98 PTY support. If enabled,
  104. busybox will use /dev/ptmx for the master side of the pseudoterminal
  105. and /dev/pts/<number> for the slave side. Otherwise, BSD style
  106. /dev/ttyp<number> will be used. To use this option, you should have
  107. devpts mounted.
  108. config BUSYBOX_CONFIG_FEATURE_UTMP
  109. bool "Support utmp file"
  110. default BUSYBOX_DEFAULT_FEATURE_UTMP
  111. help
  112. The file /var/run/utmp is used to track who is currently logged in.
  113. With this option on, certain applets (getty, login, telnetd etc)
  114. will create and delete entries there.
  115. "who" applet requires this option.
  116. config BUSYBOX_CONFIG_FEATURE_WTMP
  117. bool "Support wtmp file"
  118. default BUSYBOX_DEFAULT_FEATURE_WTMP
  119. depends on BUSYBOX_CONFIG_FEATURE_UTMP
  120. help
  121. The file /var/run/wtmp is used to track when users have logged into
  122. and logged out of the system.
  123. With this option on, certain applets (getty, login, telnetd etc)
  124. will append new entries there.
  125. "last" applet requires this option.
  126. config BUSYBOX_CONFIG_FEATURE_PIDFILE
  127. bool "Support writing pidfiles"
  128. default BUSYBOX_DEFAULT_FEATURE_PIDFILE
  129. help
  130. This option makes some applets (e.g. crond, syslogd, inetd) write
  131. a pidfile at the configured PID_FILE_PATH. It has no effect
  132. on applets which require pidfiles to run.
  133. config BUSYBOX_CONFIG_PID_FILE_PATH
  134. string "Directory for pidfiles"
  135. default BUSYBOX_DEFAULT_PID_FILE_PATH
  136. depends on BUSYBOX_CONFIG_FEATURE_PIDFILE || BUSYBOX_CONFIG_FEATURE_CROND_SPECIAL_TIMES
  137. help
  138. This is the default path where pidfiles are created. Applets which
  139. allow you to set the pidfile path on the command line will override
  140. this value. The option has no effect on applets that require you to
  141. specify a pidfile path. When crond has the 'Support special times'
  142. option enabled, the 'crond.reboot' file is also stored here.
  143. config BUSYBOX_CONFIG_BUSYBOX
  144. bool "Include busybox applet"
  145. default BUSYBOX_DEFAULT_BUSYBOX
  146. help
  147. The busybox applet provides general help message and allows
  148. the included applets to be listed. It also provides
  149. optional --install command to create applet links. If you unselect
  150. this option, running busybox without any arguments will give
  151. just a cryptic error message:
  152. $ busybox
  153. busybox: applet not found
  154. Running "busybox APPLET [ARGS...]" will still work, of course.
  155. config BUSYBOX_CONFIG_FEATURE_SHOW_SCRIPT
  156. bool "Support --show SCRIPT"
  157. default BUSYBOX_DEFAULT_FEATURE_SHOW_SCRIPT
  158. depends on BUSYBOX_CONFIG_BUSYBOX
  159. config BUSYBOX_CONFIG_FEATURE_INSTALLER
  160. bool "Support --install [-s] to install applet links at runtime"
  161. default BUSYBOX_DEFAULT_FEATURE_INSTALLER
  162. depends on BUSYBOX_CONFIG_BUSYBOX
  163. help
  164. Enable 'busybox --install [-s]' support. This will allow you to use
  165. busybox at runtime to create hard links or symlinks for all the
  166. applets that are compiled into busybox.
  167. config BUSYBOX_CONFIG_INSTALL_NO_USR
  168. bool "Don't use /usr"
  169. default BUSYBOX_DEFAULT_INSTALL_NO_USR
  170. help
  171. Disable use of /usr. "busybox --install" and "make install"
  172. will install applets only to /bin and /sbin,
  173. never to /usr/bin or /usr/sbin.
  174. config BUSYBOX_CONFIG_FEATURE_SUID
  175. bool "Drop SUID state for most applets"
  176. default BUSYBOX_DEFAULT_FEATURE_SUID
  177. help
  178. With this option you can install the busybox binary belonging
  179. to root with the suid bit set, enabling some applets to perform
  180. root-level operations even when run by ordinary users
  181. (for example, mounting of user mounts in fstab needs this).
  182. With this option enabled, busybox drops privileges for applets
  183. that don't need root access, before entering their main() function.
  184. If you are really paranoid and don't want even initial busybox code
  185. to run under root for every applet, build two busybox binaries with
  186. different applets in them (and the appropriate symlinks pointing
  187. to each binary), and only set the suid bit on the one that needs it.
  188. Some applets which require root rights (need suid bit on the binary
  189. or to be run by root) and will refuse to execute otherwise:
  190. crontab, login, passwd, su, vlock, wall.
  191. The applets which will use root rights if they have them
  192. (via suid bit, or because run by root), but would try to work
  193. without root right nevertheless:
  194. findfs, ping[6], traceroute[6], mount.
  195. Note that if you DO NOT select this option, but DO make busybox
  196. suid root, ALL applets will run under root, which is a huge
  197. security hole (think "cp /some/file /etc/passwd").
  198. config BUSYBOX_CONFIG_FEATURE_SUID_CONFIG
  199. bool "Enable SUID configuration via /etc/busybox.conf"
  200. default BUSYBOX_DEFAULT_FEATURE_SUID_CONFIG
  201. depends on BUSYBOX_CONFIG_FEATURE_SUID
  202. help
  203. Allow the SUID/SGID state of an applet to be determined at runtime
  204. by checking /etc/busybox.conf. (This is sort of a poor man's sudo.)
  205. The format of this file is as follows:
  206. APPLET = [Ssx-][Ssx-][x-] [USER.GROUP]
  207. s: USER or GROUP is allowed to execute APPLET.
  208. APPLET will run under USER or GROUP
  209. (regardless of who's running it).
  210. S: USER or GROUP is NOT allowed to execute APPLET.
  211. APPLET will run under USER or GROUP.
  212. This option is not very sensical.
  213. x: USER/GROUP/others are allowed to execute APPLET.
  214. No UID/GID change will be done when it is run.
  215. -: USER/GROUP/others are not allowed to execute APPLET.
  216. An example might help:
  217. |[SUID]
  218. |su = ssx root.0 # applet su can be run by anyone and runs with
  219. | # euid=0,egid=0
  220. |su = ssx # exactly the same
  221. |
  222. |mount = sx- root.disk # applet mount can be run by root and members
  223. | # of group disk (but not anyone else)
  224. | # and runs with euid=0 (egid is not changed)
  225. |
  226. |cp = --- # disable applet cp for everyone
  227. The file has to be owned by user root, group root and has to be
  228. writeable only by root:
  229. (chown 0.0 /etc/busybox.conf; chmod 600 /etc/busybox.conf)
  230. The busybox executable has to be owned by user root, group
  231. root and has to be setuid root for this to work:
  232. (chown 0.0 /bin/busybox; chmod 4755 /bin/busybox)
  233. Robert 'sandman' Griebl has more information here:
  234. <url: http://www.softforge.de/bb/suid.html >.
  235. config BUSYBOX_CONFIG_FEATURE_SUID_CONFIG_QUIET
  236. bool "Suppress warning message if /etc/busybox.conf is not readable"
  237. default BUSYBOX_DEFAULT_FEATURE_SUID_CONFIG_QUIET
  238. depends on BUSYBOX_CONFIG_FEATURE_SUID_CONFIG
  239. help
  240. /etc/busybox.conf should be readable by the user needing the SUID,
  241. check this option to avoid users to be notified about missing
  242. permissions.
  243. config BUSYBOX_CONFIG_FEATURE_PREFER_APPLETS
  244. bool "exec prefers applets"
  245. default BUSYBOX_DEFAULT_FEATURE_PREFER_APPLETS
  246. help
  247. This is an experimental option which directs applets about to
  248. call 'exec' to try and find an applicable busybox applet before
  249. searching the PATH. This is typically done by exec'ing
  250. /proc/self/exe.
  251. This may affect shell, find -exec, xargs and similar applets.
  252. They will use applets even if /bin/APPLET -> busybox link
  253. is missing (or is not a link to busybox). However, this causes
  254. problems in chroot jails without mounted /proc and with ps/top
  255. (command name can be shown as 'exe' for applets started this way).
  256. config BUSYBOX_CONFIG_BUSYBOX_EXEC_PATH
  257. string "Path to busybox executable"
  258. default BUSYBOX_DEFAULT_BUSYBOX_EXEC_PATH
  259. help
  260. When applets need to run other applets, busybox
  261. sometimes needs to exec() itself. When the /proc filesystem is
  262. mounted, /proc/self/exe always points to the currently running
  263. executable. If you haven't got /proc, set this to wherever you
  264. want to run busybox from.
  265. config BUSYBOX_CONFIG_SELINUX
  266. bool "Support NSA Security Enhanced Linux"
  267. default BUSYBOX_DEFAULT_SELINUX
  268. help
  269. Enable support for SELinux in applets ls, ps, and id. Also provide
  270. the option of compiling in SELinux applets.
  271. If you do not have a complete SELinux userland installed, this stuff
  272. will not compile. Specifially, libselinux 1.28 or better is
  273. directly required by busybox. If the installation is located in a
  274. non-standard directory, provide it by invoking make as follows:
  275. CFLAGS=-I<libselinux-include-path> \
  276. LDFLAGS=-L<libselinux-lib-path> \
  277. make
  278. Most people will leave this set to 'N'.
  279. config BUSYBOX_CONFIG_FEATURE_CLEAN_UP
  280. bool "Clean up all memory before exiting (usually not needed)"
  281. default BUSYBOX_DEFAULT_FEATURE_CLEAN_UP
  282. help
  283. As a size optimization, busybox normally exits without explicitly
  284. freeing dynamically allocated memory or closing files. This saves
  285. space since the OS will clean up for us, but it can confuse debuggers
  286. like valgrind, which report tons of memory and resource leaks.
  287. Don't enable this unless you have a really good reason to clean
  288. things up manually.
  289. config BUSYBOX_CONFIG_FEATURE_SYSLOG_INFO
  290. bool "Support LOG_INFO level syslog messages"
  291. default BUSYBOX_DEFAULT_FEATURE_SYSLOG_INFO
  292. depends on BUSYBOX_CONFIG_FEATURE_SYSLOG
  293. help
  294. Applets which send their output to syslog use either LOG_INFO or
  295. LOG_ERR log levels, but by disabling this option all messages will
  296. be logged at the LOG_ERR level, saving just under 200 bytes.
  297. # These are auto-selected by other options
  298. config BUSYBOX_CONFIG_FEATURE_SYSLOG
  299. bool #No description makes it a hidden option
  300. default BUSYBOX_DEFAULT_FEATURE_SYSLOG
  301. #help
  302. #This option is auto-selected when you select any applet which may
  303. #send its output to syslog. You do not need to select it manually.
  304. comment 'Build Options'
  305. config BUSYBOX_CONFIG_STATIC
  306. bool "Build static binary (no shared libs)"
  307. default BUSYBOX_DEFAULT_STATIC
  308. help
  309. If you want to build a static binary, which does not use
  310. or require any shared libraries, enable this option.
  311. Static binaries are larger, but do not require functioning
  312. dynamic libraries to be present, which is important if used
  313. as a system rescue tool.
  314. config BUSYBOX_CONFIG_PIE
  315. bool "Build position independent executable"
  316. default BUSYBOX_DEFAULT_PIE
  317. depends on !BUSYBOX_CONFIG_STATIC
  318. help
  319. Hardened code option. PIE binaries are loaded at a different
  320. address at each invocation. This has some overhead,
  321. particularly on x86-32 which is short on registers.
  322. Most people will leave this set to 'N'.
  323. config BUSYBOX_CONFIG_NOMMU
  324. bool "Force NOMMU build"
  325. default BUSYBOX_DEFAULT_NOMMU
  326. help
  327. Busybox tries to detect whether architecture it is being
  328. built against supports MMU or not. If this detection fails,
  329. or if you want to build NOMMU version of busybox for testing,
  330. you may force NOMMU build here.
  331. Most people will leave this set to 'N'.
  332. # PIE can be made to work with BUILD_LIBBUSYBOX, but currently
  333. # build system does not support that
  334. config BUSYBOX_CONFIG_BUILD_LIBBUSYBOX
  335. bool "Build shared libbusybox"
  336. default BUSYBOX_DEFAULT_BUILD_LIBBUSYBOX
  337. depends on !BUSYBOX_CONFIG_FEATURE_PREFER_APPLETS && !BUSYBOX_CONFIG_PIE && !BUSYBOX_CONFIG_STATIC
  338. help
  339. Build a shared library libbusybox.so.N.N.N which contains all
  340. busybox code.
  341. This feature allows every applet to be built as a really tiny
  342. separate executable linked against the library:
  343. |$ size 0_lib/l*
  344. | text data bss dec hex filename
  345. | 939 212 28 1179 49b 0_lib/last
  346. | 939 212 28 1179 49b 0_lib/less
  347. | 919138 8328 1556 929022 e2cfe 0_lib/libbusybox.so.1.N.M
  348. This is useful on NOMMU systems which are not capable
  349. of sharing executables, but are capable of sharing code
  350. in dynamic libraries.
  351. config BUSYBOX_CONFIG_FEATURE_LIBBUSYBOX_STATIC
  352. bool "Pull in all external references into libbusybox"
  353. default BUSYBOX_DEFAULT_FEATURE_LIBBUSYBOX_STATIC
  354. depends on BUSYBOX_CONFIG_BUILD_LIBBUSYBOX
  355. help
  356. Make libbusybox library independent, not using or requiring
  357. any other shared libraries.
  358. config BUSYBOX_CONFIG_FEATURE_INDIVIDUAL
  359. bool "Produce a binary for each applet, linked against libbusybox"
  360. default BUSYBOX_DEFAULT_FEATURE_INDIVIDUAL
  361. depends on BUSYBOX_CONFIG_BUILD_LIBBUSYBOX
  362. help
  363. If your CPU architecture doesn't allow for sharing text/rodata
  364. sections of running binaries, but allows for runtime dynamic
  365. libraries, this option will allow you to reduce memory footprint
  366. when you have many different applets running at once.
  367. If your CPU architecture allows for sharing text/rodata,
  368. having single binary is more optimal.
  369. Each applet will be a tiny program, dynamically linked
  370. against libbusybox.so.N.N.N.
  371. You need to have a working dynamic linker.
  372. config BUSYBOX_CONFIG_FEATURE_SHARED_BUSYBOX
  373. bool "Produce additional busybox binary linked against libbusybox"
  374. default BUSYBOX_DEFAULT_FEATURE_SHARED_BUSYBOX
  375. depends on BUSYBOX_CONFIG_BUILD_LIBBUSYBOX
  376. help
  377. Build busybox, dynamically linked against libbusybox.so.N.N.N.
  378. You need to have a working dynamic linker.
  379. ### config BUILD_AT_ONCE
  380. ### bool "Compile all sources at once"
  381. ### default n
  382. ### help
  383. ### Normally each source-file is compiled with one invocation of
  384. ### the compiler.
  385. ### If you set this option, all sources are compiled at once.
  386. ### This gives the compiler more opportunities to optimize which can
  387. ### result in smaller and/or faster binaries.
  388. ###
  389. ### Setting this option will consume alot of memory, e.g. if you
  390. ### enable all applets with all features, gcc uses more than 300MB
  391. ### RAM during compilation of busybox.
  392. ###
  393. ### This option is most likely only beneficial for newer compilers
  394. ### such as gcc-4.1 and above.
  395. ###
  396. ### Say 'N' unless you know what you are doing.
  397. config BUSYBOX_CONFIG_CROSS_COMPILER_PREFIX
  398. string "Cross compiler prefix"
  399. default BUSYBOX_DEFAULT_CROSS_COMPILER_PREFIX
  400. help
  401. If you want to build busybox with a cross compiler, then you
  402. will need to set this to the cross-compiler prefix, for example,
  403. "i386-uclibc-".
  404. Note that CROSS_COMPILE environment variable or
  405. "make CROSS_COMPILE=xxx ..." will override this selection.
  406. Native builds leave this empty.
  407. config BUSYBOX_CONFIG_SYSROOT
  408. string "Path to sysroot"
  409. default BUSYBOX_DEFAULT_SYSROOT
  410. help
  411. If you want to build busybox with a cross compiler, then you
  412. might also need to specify where /usr/include and /usr/lib
  413. will be found.
  414. For example, busybox can be built against an installed
  415. Android NDK, platform version 9, for ARM ABI with
  416. CONFIG_SYSROOT=/opt/android-ndk/platforms/android-9/arch-arm
  417. Native builds leave this empty.
  418. config BUSYBOX_CONFIG_EXTRA_CFLAGS
  419. string "Additional CFLAGS"
  420. default BUSYBOX_DEFAULT_EXTRA_CFLAGS
  421. help
  422. Additional CFLAGS to pass to the compiler verbatim.
  423. config BUSYBOX_CONFIG_EXTRA_LDFLAGS
  424. string "Additional LDFLAGS"
  425. default BUSYBOX_DEFAULT_EXTRA_LDFLAGS
  426. help
  427. Additional LDFLAGS to pass to the linker verbatim.
  428. config BUSYBOX_CONFIG_EXTRA_LDLIBS
  429. string "Additional LDLIBS"
  430. default BUSYBOX_DEFAULT_EXTRA_LDLIBS
  431. help
  432. Additional LDLIBS to pass to the linker with -l.
  433. config BUSYBOX_CONFIG_USE_PORTABLE_CODE
  434. bool "Avoid using GCC-specific code constructs"
  435. default BUSYBOX_DEFAULT_USE_PORTABLE_CODE
  436. help
  437. Use this option if you are trying to compile busybox with
  438. compiler other than gcc.
  439. If you do use gcc, this option may needlessly increase code size.
  440. config BUSYBOX_CONFIG_STACK_OPTIMIZATION_386
  441. bool "Use -mpreferred-stack-boundary=2 on i386 arch"
  442. default BUSYBOX_DEFAULT_STACK_OPTIMIZATION_386
  443. help
  444. This option makes for smaller code, but some libc versions
  445. do not work with it (they use SSE instructions without
  446. ensuring stack alignment).
  447. config BUSYBOX_CONFIG_STATIC_LIBGCC
  448. bool "Use -static-libgcc"
  449. default BUSYBOX_DEFAULT_STATIC_LIBGCC
  450. help
  451. This option instructs gcc to link in a static version of its
  452. support library, libgcc. This means that the binary will require
  453. one fewer dynamic library at run time.
  454. comment 'Installation Options ("make install" behavior)'
  455. choice
  456. prompt "What kind of applet links to install"
  457. default BUSYBOX_CONFIG_INSTALL_APPLET_SYMLINKS
  458. help
  459. Choose what kind of links to applets are created by "make install".
  460. config BUSYBOX_CONFIG_INSTALL_APPLET_SYMLINKS
  461. bool "as soft-links"
  462. help
  463. Install applets as soft-links to the busybox binary. This needs some
  464. free inodes on the filesystem, but might help with filesystem
  465. generators that can't cope with hard-links.
  466. config BUSYBOX_CONFIG_INSTALL_APPLET_HARDLINKS
  467. bool "as hard-links"
  468. help
  469. Install applets as hard-links to the busybox binary. This might
  470. count on a filesystem with few inodes.
  471. config BUSYBOX_CONFIG_INSTALL_APPLET_SCRIPT_WRAPPERS
  472. bool "as script wrappers"
  473. help
  474. Install applets as script wrappers that call the busybox binary.
  475. config BUSYBOX_CONFIG_INSTALL_APPLET_DONT
  476. bool "not installed"
  477. help
  478. Do not install applet links. Useful when you plan to use
  479. busybox --install for installing links, or plan to use
  480. a standalone shell and thus don't need applet links.
  481. endchoice
  482. choice
  483. prompt "/bin/sh applet link"
  484. default BUSYBOX_CONFIG_INSTALL_SH_APPLET_SYMLINK
  485. depends on BUSYBOX_CONFIG_INSTALL_APPLET_SCRIPT_WRAPPERS
  486. help
  487. Choose how you install /bin/sh applet link.
  488. config BUSYBOX_CONFIG_INSTALL_SH_APPLET_SYMLINK
  489. bool "as soft-link"
  490. help
  491. Install /bin/sh applet as soft-link to the busybox binary.
  492. config BUSYBOX_CONFIG_INSTALL_SH_APPLET_HARDLINK
  493. bool "as hard-link"
  494. help
  495. Install /bin/sh applet as hard-link to the busybox binary.
  496. config BUSYBOX_CONFIG_INSTALL_SH_APPLET_SCRIPT_WRAPPER
  497. bool "as script wrapper"
  498. help
  499. Install /bin/sh applet as script wrapper that calls
  500. the busybox binary.
  501. endchoice
  502. config BUSYBOX_CONFIG_PREFIX
  503. string "Destination path for 'make install'"
  504. default BUSYBOX_DEFAULT_PREFIX
  505. help
  506. Where "make install" should install busybox binary and links.
  507. comment 'Debugging Options'
  508. config BUSYBOX_CONFIG_DEBUG
  509. bool "Build with debug information"
  510. default BUSYBOX_DEFAULT_DEBUG
  511. help
  512. Say Y here to compile with debug information.
  513. This increases the size of the binary considerably, and
  514. should only be used when doing development.
  515. This adds -g option to gcc command line.
  516. Most people should answer N.
  517. config BUSYBOX_CONFIG_DEBUG_PESSIMIZE
  518. bool "Disable compiler optimizations"
  519. default BUSYBOX_DEFAULT_DEBUG_PESSIMIZE
  520. depends on BUSYBOX_CONFIG_DEBUG
  521. help
  522. The compiler's optimization of source code can eliminate and reorder
  523. code, resulting in an executable that's hard to understand when
  524. stepping through it with a debugger. This switches it off, resulting
  525. in a much bigger executable that more closely matches the source
  526. code.
  527. This replaces -Os/-O2 with -O0 in gcc command line.
  528. config BUSYBOX_CONFIG_DEBUG_SANITIZE
  529. bool "Enable runtime sanitizers (ASAN/LSAN/USAN/etc...)"
  530. default BUSYBOX_DEFAULT_DEBUG_SANITIZE
  531. help
  532. Say Y here if you want to enable runtime sanitizers. These help
  533. catch bad memory accesses (e.g. buffer overflows), but will make
  534. the executable larger and slow down runtime a bit.
  535. This adds -fsanitize=foo options to gcc command line.
  536. If you aren't developing/testing busybox, say N here.
  537. config BUSYBOX_CONFIG_UNIT_TEST
  538. bool "Build unit tests"
  539. default BUSYBOX_DEFAULT_UNIT_TEST
  540. help
  541. Say Y here if you want to build unit tests (both the framework and
  542. test cases) as an applet. This results in bigger code, so you
  543. probably don't want this option in production builds.
  544. config BUSYBOX_CONFIG_WERROR
  545. bool "Abort compilation on any warning"
  546. default BUSYBOX_DEFAULT_WERROR
  547. help
  548. This adds -Werror to gcc command line.
  549. Most people should answer N.
  550. config BUSYBOX_CONFIG_WARN_SIMPLE_MSG
  551. bool "Warn about single parameter bb_xx_msg calls"
  552. default BUSYBOX_DEFAULT_WARN_SIMPLE_MSG
  553. help
  554. This will cause warnings to be shown for any instances of
  555. bb_error_msg(), bb_error_msg_and_die(), bb_perror_msg(),
  556. bb_perror_msg_and_die(), bb_herror_msg() or bb_herror_msg_and_die()
  557. being called with a single parameter. In these cases the equivalent
  558. bb_simple_xx_msg function should be used instead.
  559. Note that use of STRERROR_FMT may give false positives.
  560. If you aren't developing busybox, say N here.
  561. choice
  562. prompt "Additional debugging library"
  563. default BUSYBOX_CONFIG_NO_DEBUG_LIB
  564. help
  565. Using an additional debugging library will make busybox become
  566. considerably larger and will cause it to run more slowly. You
  567. should always leave this option disabled for production use.
  568. dmalloc support:
  569. ----------------
  570. This enables compiling with dmalloc ( http://dmalloc.com/ )
  571. which is an excellent public domain mem leak and malloc problem
  572. detector. To enable dmalloc, before running busybox you will
  573. want to properly set your environment, for example:
  574. export DMALLOC_OPTIONS=debug=0x34f47d83,inter=100,log=logfile
  575. The 'debug=' value is generated using the following command
  576. dmalloc -p log-stats -p log-non-free -p log-bad-space \
  577. -p log-elapsed-time -p check-fence -p check-heap \
  578. -p check-lists -p check-blank -p check-funcs -p realloc-copy \
  579. -p allow-free-null
  580. Electric-fence support:
  581. -----------------------
  582. This enables compiling with Electric-fence support. Electric
  583. fence is another very useful malloc debugging library which uses
  584. your computer's virtual memory hardware to detect illegal memory
  585. accesses. This support will make busybox be considerably larger
  586. and run slower, so you should leave this option disabled unless
  587. you are hunting a hard to find memory problem.
  588. config BUSYBOX_CONFIG_NO_DEBUG_LIB
  589. bool "None"
  590. config BUSYBOX_CONFIG_DMALLOC
  591. bool "Dmalloc"
  592. config BUSYBOX_CONFIG_EFENCE
  593. bool "Electric-fence"
  594. endchoice
  595. source "libbb/Config.in"
  596. endmenu
  597. comment "Applets"
  598. source "archival/Config.in"
  599. source "coreutils/Config.in"
  600. source "console-tools/Config.in"
  601. source "debianutils/Config.in"
  602. source "klibc-utils/Config.in"
  603. source "editors/Config.in"
  604. source "findutils/Config.in"
  605. source "init/Config.in"
  606. source "loginutils/Config.in"
  607. source "e2fsprogs/Config.in"
  608. source "modutils/Config.in"
  609. source "util-linux/Config.in"
  610. source "miscutils/Config.in"
  611. source "networking/Config.in"
  612. source "printutils/Config.in"
  613. source "mailutils/Config.in"
  614. source "procps/Config.in"
  615. source "runit/Config.in"
  616. source "selinux/Config.in"
  617. source "shell/Config.in"
  618. source "sysklogd/Config.in"