1 /* vi: set sw=4 ts=4: */
2 // This file defines the feature set to be compiled into busybox.
3 // When you turn things off here, they won't be compiled in at all.
5 //// This file is parsed by sed. You MUST use single line comments.
6 // i.e., //#define BB_BLAH
9 // BusyBox Applications
27 //#define BB_DEALLOCVT
44 //#define BB_FREERAMDISK
45 //#define BB_FSCK_MINIX
74 //#define BB_MKFS_MINIX
85 //#define BB_PIVOT_ROOT
101 //#define BB_SETKEYCODES
117 //#define BB_TRACEROUTE
118 #define BB_TRUE_FALSE
120 //#define BB_UNIX2DOS
121 //#define BB_UUENCODE
122 //#define BB_UUDECODE
130 //#define BB_WATCHDOG
137 // End of Applications List
141 // ---------------------------------------------------------
142 // This is where feature definitions go. Generally speaking,
143 // turning this stuff off makes things a bit smaller (and less
147 // If you enabled BB_SH above, you may select one of the following shells.
148 // You can only select ONE of the following shells. Sorry.
150 // lash is the very smallest shell (adds just 10k) and it is quite usable as
151 // a command prompt, but it is not suitable for any but the most trivial
152 // scripting (such as an initrd that calls insmod a few times) since it does
153 // not understand Bourne shell grammer. It does handle pipes, redirects, and
154 // job control though. Adding in command editing makes it very nice
155 // lightweight command prompt.
156 //#define BB_FEATURE_LASH
158 // hush is also quite small (just 18k) and it has very complete Bourne shell
159 // grammer. It handles if/then/else/fi just fine, but doesn't handle loops
160 // like for/do/done or case/esac and such. It also currently has a problem
162 //#define BB_FEATURE_HUSH
164 // msh: The minix shell (adds just 30k) is quite complete and handles things
165 // like for/do/done, case/esac and all the things you expect a Bourne shell to
166 // do. It is not always pedantically correct about Bourne shell grammer (try
167 // running the shell testscript "tests/sh.testcases" on it and compare vs bash)
168 // but for most things it works quite well. It also uses only vfork, so it can
169 // be used on uClinux systems. This was only recently added, so there is still
170 // room to shrink it further...
171 #define BB_FEATURE_MSH
173 // ash: This adds about 60k in the default configuration and is the most
174 // complete and most pedantically correct shell included with busybox. This
175 // shell was also recently added, and several people (mainly Vladimir and Erik)
176 // have been working on it. There are a number of configurable things at the
177 // top of ash.c as well, so check those out if you want to tweak things. The
178 // Posix math support is currently disabled (that bit of code was horrible) but
179 // will be restored for the next BusyBox release.
180 //#define BB_FEATURE_ASH
182 // BusyBox will, by default, malloc space for its buffers. This costs code
183 // size for the call to xmalloc. You can use the following feature to have
184 // them put on the stack. For some very small machines with limited stack
185 // space, this can be deadly. For most folks, this works just fine...
186 //#define BB_FEATURE_BUFFERS_GO_ON_STACK
187 // The third alternative for buffer allocation is to use BSS. This works
188 // beautifully for computers with a real MMU (and OS support), but wastes
189 // runtime RAM for uCLinux. This behavior was the only one available for
190 // BusyBox versions 0.48 and earlier.
191 //#define BB_FEATURE_BUFFERS_GO_IN_BSS
193 // Turn this on to use Erik's very cool devps, and devmtab kernel drivers,
194 // thereby eliminating the need for the /proc filesystem and thereby saving
195 // lots and lots memory for more important things. NOTE: If you enable this
196 // feature, you _must_ have patched the kernel to include the devps patch that
197 // is included in the busybox/kernel-patches directory. You will also need to
198 // create some device special files in /dev on your embedded system:
199 // mknod /dev/mtab c 10 22
200 // mknod /dev/ps c 10 21
201 // I emailed Linus and this patch will not be going into the stock kernel.
202 //#define BB_FEATURE_USE_DEVPS_PATCH
204 // show verbose usage messages
205 //#define BB_FEATURE_VERBOSE_USAGE
207 // Use termios to manipulate the screen ('more' is prettier with this on)
208 //#define BB_FEATURE_USE_TERMIOS
210 // calculate terminal & column widths (for more and ls)
211 #define BB_FEATURE_AUTOWIDTH
213 // show username/groupnames for ls
214 #define BB_FEATURE_LS_USERNAME
216 // show file timestamps in ls
217 #define BB_FEATURE_LS_TIMESTAMPS
219 // enable ls -p and -F
220 #define BB_FEATURE_LS_FILETYPES
222 // sort the file names
223 #define BB_FEATURE_LS_SORTFILES
226 #define BB_FEATURE_LS_RECURSIVE
229 #define BB_FEATURE_LS_FOLLOWLINKS
231 // Disable for a smaller (but less functional) ping
232 #define BB_FEATURE_FANCY_PING
234 // Make init use a simplified /etc/inittab file (recommended).
235 #define BB_FEATURE_USE_INITTAB
237 //Enable init being called as /linuxrc
238 #define BB_FEATURE_LINUXRC
240 //Have init enable core dumping for child processes (for debugging only)
241 //#define BB_FEATURE_INIT_COREDUMPS
243 //Make sure nothing is printed to the console on boot
244 //#define BB_FEATURE_EXTRA_QUIET
246 // enable syslogd -R remotehost
247 #define BB_FEATURE_REMOTE_LOG
250 //#define BB_FEATURE_IPC_SYSLOG
252 //Disable for a simple tail implementation (2.34k vs 3k for the full one).
253 //Both provide 'tail -f', but this cuts out -c, -q, -s, and -v.
254 #define BB_FEATURE_FANCY_TAIL
256 // Enable support for loop devices in mount
257 #define BB_FEATURE_MOUNT_LOOP
259 // Enable support for a real /etc/mtab file instead of /proc/mounts
260 //#define BB_FEATURE_MTAB_SUPPORT
262 // Enable support for mounting remote NFS volumes.
263 // You may need to mount with "-o nolock" if you are
264 // not running a local portmapper daemon...
265 //#define BB_FEATURE_NFSMOUNT
267 // Enable support forced filesystem unmounting
268 // (i.e., in case of an unreachable NFS system).
269 #define BB_FEATURE_MOUNT_FORCE
271 // Enable support for creation of tar files.
272 #define BB_FEATURE_TAR_CREATE
274 // Enable support for "--exclude" and "-X" for excluding files
275 #define BB_FEATURE_TAR_EXCLUDE
277 // Enable support for tar -z option (currently only works for inflating)
278 #define BB_FEATURE_TAR_GZIP
280 // Enable reverse sort
281 #define BB_FEATURE_SORT_REVERSE
284 #define BB_FEATURE_SORT_UNIQUE
286 // Enable command line editing in the shell.
287 // Only relevant if BB_SH is enabled. On by default.
288 #define BB_FEATURE_COMMAND_EDITING
290 // Enable tab completion in the shell. This is now working quite nicely.
291 // This feature adds a bit over 4k. Only relevant if BB_SH is enabled.
292 #define BB_FEATURE_COMMAND_TAB_COMPLETION
294 // Attempts to match usernames in a ~-prefixed path
295 //#define BB_FEATURE_COMMAND_USERNAME_COMPLETION
297 //Allow the shell to invoke all the compiled in BusyBox applets as if they
298 //were shell builtins. Nice for staticly linking an emergency rescue shell,
299 //among other things. Off by default.
300 // Only relevant if BB_SH is enabled.
301 //#define BB_FEATURE_SH_STANDALONE_SHELL
303 //When this is enabled, busybox shell applets can be called using full path
304 //names. This causes applets (i.e., most busybox commands) to override
305 //real commands on the filesystem. For example, if you run run /bin/cat, it
306 //will use BusyBox cat even if /bin/cat exists on the filesystem and is _not_
307 //busybox. Some systems want this, others do not. Choose wisely. :-) This
308 //only has meaning when BB_FEATURE_SH_STANDALONE_SHELL is enabled.
309 // Only relevant if BB_SH is enabled. Off by default.
310 //#define BB_FEATURE_SH_APPLETS_ALWAYS_WIN
312 // Uncomment this option for a fancy shell prompt that includes the
313 // current username and hostname. On systems that don't have usernames
314 // or hostnames, this can look hideous.
315 // Only relevant if BB_SH is enabled.
316 //#define BB_FEATURE_SH_FANCY_PROMPT
318 //Turn on extra fbset options
319 //#define BB_FEATURE_FBSET_FANCY
321 //Turn on fbset readmode support
322 //#define BB_FEATURE_FBSET_READMODE
324 // Support insmod/lsmod/rmmod for post 2.1 kernels
325 //#define BB_FEATURE_NEW_MODULE_INTERFACE
327 // Support insmod/lsmod/rmmod for pre 2.1 kernels
328 //#define BB_FEATURE_OLD_MODULE_INTERFACE
330 // Support module version checking
331 //#define BB_FEATURE_INSMOD_VERSION_CHECKING
333 // Support for uClinux memory usage optimization, which will load the image
334 // directly into the kernel memory. This divides memory requrements by three.
335 // If you are not running uClinux (i.e., your CPU has an MMU) leave this
337 //#define BB_FEATURE_INSMOD_LOADINKMEM
339 // Support for Minix filesystem, version 2
340 //#define BB_FEATURE_MINIX2
342 // Enable ifconfig status reporting output -- this feature adds 12k.
343 //#define BB_FEATURE_IFCONFIG_STATUS
345 // Enable ifconfig slip-specific options "keepalive" and "outfill"
346 //#define BB_FEATURE_IFCONFIG_SLIP
348 // Enable ifconfig options "mem_start", "io_addr", and "irq".
349 //#define BB_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ
351 // Enable ifconfig option "hw". Currently works for only with "ether".
352 //#define BB_FEATURE_IFCONFIG_HW
354 // Enable busybox --install [-s]
355 // to create links (or symlinks) for all the commands that are
356 // compiled into the binary. (needs /proc filesystem)
357 //#define BB_FEATURE_INSTALLER
359 // Enable a nifty progress meter in wget (adds just under 2k)
360 #define BB_FEATURE_WGET_STATUSBAR
362 // Enable HTTP authentication in wget
363 #define BB_FEATURE_WGET_AUTHENTICATION
365 // Clean up all memory before exiting -- usually not needed
366 // as the OS can clean up... Don't enable this unless you
367 // have a really good reason for cleaning things up manually.
368 //#define BB_FEATURE_CLEAN_UP
370 // Support for human readable output by ls, du, etc.(example 13k, 23M, 235G)
371 #define BB_FEATURE_HUMAN_READABLE
373 // Support for the find -type option.
374 #define BB_FEATURE_FIND_TYPE
376 // Support for the find -perm option.
377 #define BB_FEATURE_FIND_PERM
379 // Support for the find -mtine option.
380 #define BB_FEATURE_FIND_MTIME
382 // Support for the -A -B and -C context flags in grep
383 //#define BB_FEATURE_GREP_CONTEXT
385 // Support for the EGREP applet (alias to the grep applet)
386 //#define BB_FEATURE_GREP_EGREP_ALIAS
388 // Tell tftp what commands that should be supported.
389 #define BB_FEATURE_TFTP_PUT
390 #define BB_FEATURE_TFTP_GET
393 #define BB_FEATURE_VI_COLON // ":" colon commands, no "ex" mode
394 #define BB_FEATURE_VI_YANKMARK // Yank/Put commands and Mark cmds
395 #define BB_FEATURE_VI_SEARCH // search and replace cmds
396 #define BB_FEATURE_VI_USE_SIGNALS // catch signals
397 #define BB_FEATURE_VI_DOT_CMD // remember previous cmd and "." cmd
398 #define BB_FEATURE_VI_READONLY // vi -R and "view" mode
399 #define BB_FEATURE_VI_SETOPTS // set-able options, ai ic showmatch
400 #define BB_FEATURE_VI_SET // :set
401 #define BB_FEATURE_VI_WIN_RESIZE // handle window resize
403 // Enable a if you system have setuped locale
404 //#define BB_LOCALE_SUPPORT
406 // Support for TELNET to pass TERM type to remote host. Adds 384 bytes.
407 #define BB_FEATURE_TELNET_TTYPE
409 // End of Features List
416 //---------------------------------------------------
417 // Nothing beyond this point should ever be touched by
418 // mere mortals so leave this stuff alone.
420 #include <features.h>
421 #if defined __UCLIBC__ && ! defined __UCLIBC_HAS_MMU__
422 #undef BB_RPM2CPIO /* Uses gz_open(), which uses fork() */
423 #undef BB_DPKG_DEB /* Uses gz_open(), which uses fork() */
424 #undef BB_FEATURE_ASH /* Uses fork() */
425 #undef BB_FEATURE_HUSH /* Uses fork() */
426 #undef BB_FEATURE_LASH /* Uses fork() */
427 #undef BB_INIT /* Uses fork() */
428 #undef BB_FEATURE_TAR_GZIP /* Uses fork() */
429 #undef BB_SYSLOGD /* Uses daemon() */
430 #undef BB_KLOGD /* Uses daemon() */
431 #undef BB_UPDATE /* Uses daemon() */
434 #if defined BB_FEATURE_COMMAND_EDITING
437 #undef BB_FEATURE_COMMAND_EDITING
438 #undef BB_FEATURE_COMMAND_TAB_COMPLETION
439 #undef BB_FEATURE_COMMAND_USERNAME_COMPLETION
440 #undef BB_FEATURE_SH_FANCY_PROMPT
442 #if ! defined BB_FEATURE_LASH && ! defined BB_FEATURE_HUSH && ! defined BB_FEATURE_MSH && ! defined BB_FEATURE_ASH
443 #define BB_FEATURE_MSH
445 #if defined BB_FEATURE_ASH && (defined BB_FEATURE_LASH || defined BB_FEATURE_HUSH || defined BB_FEATURE_MSH)
446 #undef BB_FEATURE_LASH
447 #undef BB_FEATURE_HUSH
448 #undef BB_FEATURE_MSH
449 #elif defined BB_FEATURE_MSH && (defined BB_FEATURE_LASH || defined BB_FEATURE_HUSH || defined BB_FEATURE_MSH)
450 #undef BB_FEATURE_LASH
451 #undef BB_FEATURE_HUSH
452 #undef BB_FEATURE_ASH
453 #elif defined BB_FEATURE_HUSH && (defined BB_FEATURE_LASH || defined BB_FEATURE_HUSH || defined BB_FEATURE_MSH)
454 #undef BB_FEATURE_LASH
455 #undef BB_FEATURE_MSH
456 #undef BB_FEATURE_ASH
457 #elif defined BB_FEATURE_LASH && (defined BB_FEATURE_LASH || defined BB_FEATURE_HUSH || defined BB_FEATURE_MSH)
458 #undef BB_FEATURE_HUSH
459 #undef BB_FEATURE_MSH
460 #undef BB_FEATURE_ASH
463 #undef BB_FEATURE_SH_APPLETS_ALWAYS_WIN
464 #undef BB_FEATURE_SH_STANDALONE_SHELL
465 #undef BB_FEATURE_SH_FANCY_PROMPT
475 #undef BB_FEATURE_LINUXRC
478 #if defined BB_MOUNT && defined BB_FEATURE_NFSMOUNT
482 #if defined BB_FEATURE_AUTOWIDTH
483 #ifndef BB_FEATURE_USE_TERMIOS
484 #define BB_FEATURE_USE_TERMIOS
488 #if defined BB_INSMOD || defined BB_LSMOD
489 #if ! defined BB_FEATURE_NEW_MODULE_INTERFACE && ! defined BB_FEATURE_OLD_MODULE_INTERFACE
490 #define BB_FEATURE_NEW_MODULE_INTERFACE
495 #if defined BB_FEATURE_IPC_SYSLOG