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_TRUE_FALSE
119 //#define BB_UNIX2DOS
120 //#define BB_UUENCODE
121 //#define BB_UUDECODE
129 //#define BB_WATCHDOG
136 // End of Applications List
140 // ---------------------------------------------------------
141 // This is where feature definitions go. Generally speaking,
142 // turning this stuff off makes things a bit smaller (and less
146 // If you enabled BB_SH above, you may select one of the following shells.
147 // You can only select ONE of the following shells. Sorry.
149 // lash is the very smallest shell (adds just 10k) and it is quite usable as
150 // a command prompt, but it is not suitable for any but the most trivial
151 // scripting (such as an initrd that calls insmod a few times) since it does
152 // not understand Bourne shell grammer. It does handle pipes, redirects, and
153 // job control though. Adding in command editing makes it very nice
154 // lightweight command prompt.
155 //#define BB_FEATURE_LASH
157 // hush is also quite small (just 18k) and it has very complete Bourne shell
158 // grammer. It handles if/then/else/fi just fine, but doesn't handle loops
159 // like for/do/done or case/esac and such. It also currently has a problem
161 //#define BB_FEATURE_HUSH
163 // msh: The minix shell (adds just 30k) is quite complete and handles things
164 // like for/do/done, case/esac and all the things you expect a Bourne shell to
165 // do. It is not always pedantically correct about Bourne shell grammer (try
166 // running the shell testscript "tests/sh.testcases" on it and compare vs bash)
167 // but for most things it works quite well. It also uses only vfork, so it can
168 // be used on uClinux systems. This was only recently added, so there is still
169 // room to shrink it further...
170 #define BB_FEATURE_MSH
172 // ash: This adds about 60k in the default configuration and is the most
173 // complete and most pedantically correct shell included with busybox. This
174 // shell was also recently added, and several people (mainly Vladimir and Erik)
175 // have been working on it. There are a number of configurable things at the
176 // top of ash.c as well, so check those out if you want to tweak things. The
177 // Posix math support is currently disabled (that bit of code was horrible) but
178 // will be restored for the next BusyBox release.
179 //#define BB_FEATURE_ASH
181 // BusyBox will, by default, malloc space for its buffers. This costs code
182 // size for the call to xmalloc. You can use the following feature to have
183 // them put on the stack. For some very small machines with limited stack
184 // space, this can be deadly. For most folks, this works just fine...
185 //#define BB_FEATURE_BUFFERS_GO_ON_STACK
186 // The third alternative for buffer allocation is to use BSS. This works
187 // beautifully for computers with a real MMU (and OS support), but wastes
188 // runtime RAM for uCLinux. This behavior was the only one available for
189 // BusyBox versions 0.48 and earlier.
190 //#define BB_FEATURE_BUFFERS_GO_IN_BSS
192 // Turn this on to use Erik's very cool devps, and devmtab kernel drivers,
193 // thereby eliminating the need for the /proc filesystem and thereby saving
194 // lots and lots memory for more important things. NOTE: If you enable this
195 // feature, you _must_ have patched the kernel to include the devps patch that
196 // is included in the busybox/kernel-patches directory. You will also need to
197 // create some device special files in /dev on your embedded system:
198 // mknod /dev/mtab c 10 22
199 // mknod /dev/ps c 10 21
200 // I emailed Linus and this patch will not be going into the stock kernel.
201 //#define BB_FEATURE_USE_DEVPS_PATCH
203 // show verbose usage messages
204 //#define BB_FEATURE_VERBOSE_USAGE
206 // Use termios to manipulate the screen ('more' is prettier with this on)
207 //#define BB_FEATURE_USE_TERMIOS
209 // calculate terminal & column widths (for more and ls)
210 #define BB_FEATURE_AUTOWIDTH
212 // show username/groupnames for ls
213 #define BB_FEATURE_LS_USERNAME
215 // show file timestamps in ls
216 #define BB_FEATURE_LS_TIMESTAMPS
218 // enable ls -p and -F
219 #define BB_FEATURE_LS_FILETYPES
221 // sort the file names
222 #define BB_FEATURE_LS_SORTFILES
225 #define BB_FEATURE_LS_RECURSIVE
228 #define BB_FEATURE_LS_FOLLOWLINKS
230 // Disable for a smaller (but less functional) ping
231 #define BB_FEATURE_FANCY_PING
233 // Make init use a simplified /etc/inittab file (recommended).
234 #define BB_FEATURE_USE_INITTAB
236 //Enable init being called as /linuxrc
237 #define BB_FEATURE_LINUXRC
239 //Have init enable core dumping for child processes (for debugging only)
240 //#define BB_FEATURE_INIT_COREDUMPS
242 //Make sure nothing is printed to the console on boot
243 //#define BB_FEATURE_EXTRA_QUIET
245 // enable syslogd -R remotehost
246 #define BB_FEATURE_REMOTE_LOG
249 //#define BB_FEATURE_IPC_SYSLOG
251 //Disable for a simple tail implementation (2.34k vs 3k for the full one).
252 //Both provide 'tail -f', but this cuts out -c, -q, -s, and -v.
253 #define BB_FEATURE_FANCY_TAIL
255 // Enable support for loop devices in mount
256 #define BB_FEATURE_MOUNT_LOOP
258 // Enable support for a real /etc/mtab file instead of /proc/mounts
259 //#define BB_FEATURE_MTAB_SUPPORT
261 // Enable support for mounting remote NFS volumes.
262 // You may need to mount with "-o nolock" if you are
263 // not running a local portmapper daemon...
264 //#define BB_FEATURE_NFSMOUNT
266 // Enable support forced filesystem unmounting
267 // (i.e., in case of an unreachable NFS system).
268 #define BB_FEATURE_MOUNT_FORCE
270 // Enable support for creation of tar files.
271 #define BB_FEATURE_TAR_CREATE
273 // Enable support for "--exclude" and "-X" for excluding files
274 #define BB_FEATURE_TAR_EXCLUDE
276 // Enable support for tar -z option (currently only works for inflating)
277 #define BB_FEATURE_TAR_GZIP
279 // Enable reverse sort
280 #define BB_FEATURE_SORT_REVERSE
283 #define BB_FEATURE_SORT_UNIQUE
285 // Enable command line editing in the shell.
286 // Only relevant if BB_SH is enabled. On by default.
287 #define BB_FEATURE_COMMAND_EDITING
289 // Enable tab completion in the shell. This is now working quite nicely.
290 // This feature adds a bit over 4k. Only relevant if BB_SH is enabled.
291 #define BB_FEATURE_COMMAND_TAB_COMPLETION
293 // Attempts to match usernames in a ~-prefixed path
294 //#define BB_FEATURE_COMMAND_USERNAME_COMPLETION
296 //Allow the shell to invoke all the compiled in BusyBox applets as if they
297 //were shell builtins. Nice for staticly linking an emergency rescue shell,
298 //among other things. Off by default.
299 // Only relevant if BB_SH is enabled.
300 //#define BB_FEATURE_SH_STANDALONE_SHELL
302 //When this is enabled, busybox shell applets can be called using full path
303 //names. This causes applets (i.e., most busybox commands) to override
304 //real commands on the filesystem. For example, if you run run /bin/cat, it
305 //will use BusyBox cat even if /bin/cat exists on the filesystem and is _not_
306 //busybox. Some systems want this, others do not. Choose wisely. :-) This
307 //only has meaning when BB_FEATURE_SH_STANDALONE_SHELL is enabled.
308 // Only relevant if BB_SH is enabled. Off by default.
309 //#define BB_FEATURE_SH_APPLETS_ALWAYS_WIN
311 // Uncomment this option for a fancy shell prompt that includes the
312 // current username and hostname. On systems that don't have usernames
313 // or hostnames, this can look hideous.
314 // Only relevant if BB_SH is enabled.
315 //#define BB_FEATURE_SH_FANCY_PROMPT
317 //Turn on extra fbset options
318 //#define BB_FEATURE_FBSET_FANCY
320 //Turn on fbset readmode support
321 //#define BB_FEATURE_FBSET_READMODE
323 // Support insmod/lsmod/rmmod for post 2.1 kernels
324 //#define BB_FEATURE_NEW_MODULE_INTERFACE
326 // Support insmod/lsmod/rmmod for pre 2.1 kernels
327 //#define BB_FEATURE_OLD_MODULE_INTERFACE
329 // Support module version checking
330 //#define BB_FEATURE_INSMOD_VERSION_CHECKING
332 // Support for uClinux memory usage optimization, which will load the image
333 // directly into the kernel memory. This divides memory requrements by three.
334 // If you are not running uClinux (i.e., your CPU has an MMU) leave this
336 //#define BB_FEATURE_INSMOD_LOADINKMEM
338 // Support for Minix filesystem, version 2
339 //#define BB_FEATURE_MINIX2
341 // Enable ifconfig status reporting output -- this feature adds 12k.
342 //#define BB_FEATURE_IFCONFIG_STATUS
344 // Enable ifconfig slip-specific options "keepalive" and "outfill"
345 //#define BB_FEATURE_IFCONFIG_SLIP
347 // Enable ifconfig options "mem_start", "io_addr", and "irq".
348 //#define BB_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ
350 // Enable ifconfig option "hw". Currently works for only with "ether".
351 //#define BB_FEATURE_IFCONFIG_HW
353 // Enable busybox --install [-s]
354 // to create links (or symlinks) for all the commands that are
355 // compiled into the binary. (needs /proc filesystem)
356 //#define BB_FEATURE_INSTALLER
358 // Enable a nifty progress meter in wget (adds just under 2k)
359 #define BB_FEATURE_WGET_STATUSBAR
361 // Enable HTTP authentication in wget
362 #define BB_FEATURE_WGET_AUTHENTICATION
364 // Clean up all memory before exiting -- usually not needed
365 // as the OS can clean up... Don't enable this unless you
366 // have a really good reason for cleaning things up manually.
367 //#define BB_FEATURE_CLEAN_UP
369 // Support for human readable output by ls, du, etc.(example 13k, 23M, 235G)
370 #define BB_FEATURE_HUMAN_READABLE
372 // Support for the find -type option.
373 #define BB_FEATURE_FIND_TYPE
375 // Support for the find -perm option.
376 #define BB_FEATURE_FIND_PERM
378 // Support for the find -mtine option.
379 #define BB_FEATURE_FIND_MTIME
381 // Support for the -A -B and -C context flags in grep
382 //#define BB_FEATURE_GREP_CONTEXT
384 // Support for the EGREP applet (alias to the grep applet)
385 //#define BB_FEATURE_GREP_EGREP_ALIAS
387 // Tell tftp what commands that should be supported.
388 #define BB_FEATURE_TFTP_PUT
389 #define BB_FEATURE_TFTP_GET
392 #define BB_FEATURE_VI_COLON // ":" colon commands, no "ex" mode
393 #define BB_FEATURE_VI_YANKMARK // Yank/Put commands and Mark cmds
394 #define BB_FEATURE_VI_SEARCH // search and replace cmds
395 #define BB_FEATURE_VI_USE_SIGNALS // catch signals
396 #define BB_FEATURE_VI_DOT_CMD // remember previous cmd and "." cmd
397 #define BB_FEATURE_VI_READONLY // vi -R and "view" mode
398 #define BB_FEATURE_VI_SETOPTS // set-able options, ai ic showmatch
399 #define BB_FEATURE_VI_SET // :set
400 #define BB_FEATURE_VI_WIN_RESIZE // handle window resize
402 // Enable a if you system have setuped locale
403 //#define BB_LOCALE_SUPPORT
405 // Support for TELNET to pass TERM type to remote host. Adds 384 bytes.
406 #define BB_FEATURE_TELNET_TTYPE
408 // End of Features List
415 //---------------------------------------------------
416 // Nothing beyond this point should ever be touched by
417 // mere mortals so leave this stuff alone.
420 #if defined BB_FEATURE_COMMAND_EDITING
423 #undef BB_FEATURE_COMMAND_EDITING
424 #undef BB_FEATURE_COMMAND_TAB_COMPLETION
425 #undef BB_FEATURE_COMMAND_USERNAME_COMPLETION
426 #undef BB_FEATURE_SH_FANCY_PROMPT
428 #if ! defined BB_FEATURE_LASH && ! defined BB_FEATURE_HUSH && ! defined BB_FEATURE_MSH && ! defined BB_FEATURE_ASH
429 #define BB_FEATURE_MSH
431 #if defined BB_FEATURE_ASH && (defined BB_FEATURE_LASH || defined BB_FEATURE_HUSH || defined BB_FEATURE_MSH)
432 #undef BB_FEATURE_LASH
433 #undef BB_FEATURE_HUSH
434 #undef BB_FEATURE_MSH
435 #elif defined BB_FEATURE_MSH && (defined BB_FEATURE_LASH || defined BB_FEATURE_HUSH || defined BB_FEATURE_MSH)
436 #undef BB_FEATURE_LASH
437 #undef BB_FEATURE_HUSH
438 #undef BB_FEATURE_ASH
439 #elif defined BB_FEATURE_HUSH && (defined BB_FEATURE_LASH || defined BB_FEATURE_HUSH || defined BB_FEATURE_MSH)
440 #undef BB_FEATURE_LASH
441 #undef BB_FEATURE_MSH
442 #undef BB_FEATURE_ASH
443 #elif defined BB_FEATURE_LASH && (defined BB_FEATURE_LASH || defined BB_FEATURE_HUSH || defined BB_FEATURE_MSH)
444 #undef BB_FEATURE_HUSH
445 #undef BB_FEATURE_MSH
446 #undef BB_FEATURE_ASH
449 #undef BB_FEATURE_SH_APPLETS_ALWAYS_WIN
450 #undef BB_FEATURE_SH_STANDALONE_SHELL
451 #undef BB_FEATURE_SH_FANCY_PROMPT
461 #undef BB_FEATURE_LINUXRC
464 #if defined BB_MOUNT && defined BB_FEATURE_NFSMOUNT
468 #if defined BB_FEATURE_AUTOWIDTH
469 #ifndef BB_FEATURE_USE_TERMIOS
470 #define BB_FEATURE_USE_TERMIOS
474 #if defined BB_INSMOD || defined BB_LSMOD
475 #if ! defined BB_FEATURE_NEW_MODULE_INTERFACE && ! defined BB_FEATURE_OLD_MODULE_INTERFACE
476 #define BB_FEATURE_NEW_MODULE_INTERFACE
481 #if defined BB_FEATURE_IPC_SYSLOG