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
87 //#define BB_PIVOT_ROOT
101 //#define BB_RPM2CPIO
103 //#define BB_SETKEYCODES
119 //#define BB_TRACEROUTE
120 #define BB_TRUE_FALSE
122 //#define BB_UNIX2DOS
123 //#define BB_UUENCODE
124 //#define BB_UUDECODE
132 //#define BB_WATCHDOG
139 // End of Applications List
143 // ---------------------------------------------------------
144 // This is where feature definitions go. Generally speaking,
145 // turning this stuff off makes things a bit smaller (and less
149 // If you enabled BB_SH above, you may select one of the following shells.
150 // You can only select ONE of the following shells. Sorry.
152 // lash is the very smallest shell (adds just 10k) and it is quite usable as
153 // a command prompt, but it is not suitable for any but the most trivial
154 // scripting (such as an initrd that calls insmod a few times) since it does
155 // not understand Bourne shell grammer. It does handle pipes, redirects, and
156 // job control though. Adding in command editing makes it very nice
157 // lightweight command prompt.
158 //#define BB_FEATURE_LASH
160 // hush is also quite small (just 18k) and it has very complete Bourne shell
161 // grammer. It handles if/then/else/fi just fine, but doesn't handle loops
162 // like for/do/done or case/esac and such. It also currently has a problem
164 //#define BB_FEATURE_HUSH
166 // msh: The minix shell (adds just 30k) is quite complete and handles things
167 // like for/do/done, case/esac and all the things you expect a Bourne shell to
168 // do. It is not always pedantically correct about Bourne shell grammer (try
169 // running the shell testscript "tests/sh.testcases" on it and compare vs bash)
170 // but for most things it works quite well. It also uses only vfork, so it can
171 // be used on uClinux systems. This was only recently added, so there is still
172 // room to shrink it further...
173 #define BB_FEATURE_MSH
175 // ash: This adds about 60k in the default configuration and is the most
176 // complete and most pedantically correct shell included with busybox. This
177 // shell was also recently added, and several people (mainly Vladimir and Erik)
178 // have been working on it. There are a number of configurable things at the
179 // top of ash.c as well, so check those out if you want to tweak things. The
180 // Posix math support is currently disabled (that bit of code was horrible) but
181 // will be restored for the next BusyBox release.
182 //#define BB_FEATURE_ASH
184 // BusyBox will, by default, malloc space for its buffers. This costs code
185 // size for the call to xmalloc. You can use the following feature to have
186 // them put on the stack. For some very small machines with limited stack
187 // space, this can be deadly. For most folks, this works just fine...
188 //#define BB_FEATURE_BUFFERS_GO_ON_STACK
189 // The third alternative for buffer allocation is to use BSS. This works
190 // beautifully for computers with a real MMU (and OS support), but wastes
191 // runtime RAM for uCLinux. This behavior was the only one available for
192 // BusyBox versions 0.48 and earlier.
193 //#define BB_FEATURE_BUFFERS_GO_IN_BSS
195 // Turn this on to use Erik's very cool devps, and devmtab kernel drivers,
196 // thereby eliminating the need for the /proc filesystem and thereby saving
197 // lots and lots memory for more important things. NOTE: If you enable this
198 // feature, you _must_ have patched the kernel to include the devps patch that
199 // is included in the busybox/kernel-patches directory. You will also need to
200 // create some device special files in /dev on your embedded system:
201 // mknod /dev/mtab c 10 22
202 // mknod /dev/ps c 10 21
203 // I emailed Linus and this patch will not be going into the stock kernel.
204 //#define BB_FEATURE_USE_DEVPS_PATCH
206 // show verbose usage messages
207 //#define BB_FEATURE_VERBOSE_USAGE
209 // Use termios to manipulate the screen ('more' is prettier with this on)
210 //#define BB_FEATURE_USE_TERMIOS
212 // calculate terminal & column widths (for more and ls)
213 #define BB_FEATURE_AUTOWIDTH
215 // show username/groupnames for ls
216 #define BB_FEATURE_LS_USERNAME
218 // show file timestamps in ls
219 #define BB_FEATURE_LS_TIMESTAMPS
221 // enable ls -p and -F
222 #define BB_FEATURE_LS_FILETYPES
224 // sort the file names
225 #define BB_FEATURE_LS_SORTFILES
228 #define BB_FEATURE_LS_RECURSIVE
231 #define BB_FEATURE_LS_FOLLOWLINKS
233 // Disable for a smaller (but less functional) ping
234 #define BB_FEATURE_FANCY_PING
236 // Make init use a simplified /etc/inittab file (recommended).
237 #define BB_FEATURE_USE_INITTAB
239 //Enable init being called as /linuxrc
240 #define BB_FEATURE_LINUXRC
242 //Have init enable core dumping for child processes (for debugging only)
243 //#define BB_FEATURE_INIT_COREDUMPS
245 //Make sure nothing is printed to the console on boot
246 //#define BB_FEATURE_EXTRA_QUIET
248 // enable syslogd -R remotehost
249 #define BB_FEATURE_REMOTE_LOG
252 //#define BB_FEATURE_IPC_SYSLOG
254 //Disable for a simple tail implementation (2.34k vs 3k for the full one).
255 //Both provide 'tail -f', but this cuts out -c, -q, -s, and -v.
256 #define BB_FEATURE_FANCY_TAIL
258 // Enable support for loop devices in mount
259 #define BB_FEATURE_MOUNT_LOOP
261 // Enable support for a real /etc/mtab file instead of /proc/mounts
262 //#define BB_FEATURE_MTAB_SUPPORT
264 // Enable support for mounting remote NFS volumes.
265 // You may need to mount with "-o nolock" if you are
266 // not running a local portmapper daemon...
267 //#define BB_FEATURE_NFSMOUNT
269 // Enable support forced filesystem unmounting
270 // (i.e., in case of an unreachable NFS system).
271 #define BB_FEATURE_MOUNT_FORCE
273 // Enable support for creation of tar files.
274 #define BB_FEATURE_TAR_CREATE
276 // Enable support for "--exclude" and "-X" for excluding files
277 #define BB_FEATURE_TAR_EXCLUDE
279 // Enable support for tar -z option (currently only works for inflating)
280 #define BB_FEATURE_TAR_GZIP
282 // Enable reverse sort
283 #define BB_FEATURE_SORT_REVERSE
286 #define BB_FEATURE_SORT_UNIQUE
288 // Enable command line editing in the shell.
289 // Only relevant if BB_SH is enabled. On by default.
290 #define BB_FEATURE_COMMAND_EDITING
292 // Enable tab completion in the shell. This is now working quite nicely.
293 // This feature adds a bit over 4k. Only relevant if BB_SH is enabled.
294 #define BB_FEATURE_COMMAND_TAB_COMPLETION
296 // Attempts to match usernames in a ~-prefixed path
297 //#define BB_FEATURE_COMMAND_USERNAME_COMPLETION
299 //Allow the shell to invoke all the compiled in BusyBox applets as if they
300 //were shell builtins. Nice for staticly linking an emergency rescue shell,
301 //among other things. Off by default.
302 // Only relevant if BB_SH is enabled.
303 //#define BB_FEATURE_SH_STANDALONE_SHELL
305 //When this is enabled, busybox shell applets can be called using full path
306 //names. This causes applets (i.e., most busybox commands) to override
307 //real commands on the filesystem. For example, if you run run /bin/cat, it
308 //will use BusyBox cat even if /bin/cat exists on the filesystem and is _not_
309 //busybox. Some systems want this, others do not. Choose wisely. :-) This
310 //only has meaning when BB_FEATURE_SH_STANDALONE_SHELL is enabled.
311 // Only relevant if BB_SH is enabled. Off by default.
312 //#define BB_FEATURE_SH_APPLETS_ALWAYS_WIN
314 // Uncomment this option for a fancy shell prompt that includes the
315 // current username and hostname. On systems that don't have usernames
316 // or hostnames, this can look hideous.
317 // Only relevant if BB_SH is enabled.
318 //#define BB_FEATURE_SH_FANCY_PROMPT
320 //Turn on extra fbset options
321 //#define BB_FEATURE_FBSET_FANCY
323 //Turn on fbset readmode support
324 //#define BB_FEATURE_FBSET_READMODE
326 // Support insmod/lsmod/rmmod for post 2.1 kernels
327 //#define BB_FEATURE_NEW_MODULE_INTERFACE
329 // Support insmod/lsmod/rmmod for pre 2.1 kernels
330 //#define BB_FEATURE_OLD_MODULE_INTERFACE
332 // Support module version checking
333 //#define BB_FEATURE_INSMOD_VERSION_CHECKING
335 // Support for uClinux memory usage optimization, which will load the image
336 // directly into the kernel memory. This divides memory requrements by three.
337 // If you are not running uClinux (i.e., your CPU has an MMU) leave this
339 //#define BB_FEATURE_INSMOD_LOADINKMEM
341 // Support for Minix filesystem, version 2
342 //#define BB_FEATURE_MINIX2
344 // Enable ifconfig status reporting output -- this feature adds 12k.
345 //#define BB_FEATURE_IFCONFIG_STATUS
347 // Enable ifconfig slip-specific options "keepalive" and "outfill"
348 //#define BB_FEATURE_IFCONFIG_SLIP
350 // Enable ifconfig options "mem_start", "io_addr", and "irq".
351 //#define BB_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ
353 // Enable ifconfig option "hw". Currently works for only with "ether".
354 //#define BB_FEATURE_IFCONFIG_HW
356 // Enable busybox --install [-s]
357 // to create links (or symlinks) for all the commands that are
358 // compiled into the binary. (needs /proc filesystem)
359 //#define BB_FEATURE_INSTALLER
361 // Enable a nifty progress meter in wget (adds just under 2k)
362 #define BB_FEATURE_WGET_STATUSBAR
364 // Enable HTTP authentication in wget
365 #define BB_FEATURE_WGET_AUTHENTICATION
367 // Clean up all memory before exiting -- usually not needed
368 // as the OS can clean up... Don't enable this unless you
369 // have a really good reason for cleaning things up manually.
370 //#define BB_FEATURE_CLEAN_UP
372 // Support for human readable output by ls, du, etc.(example 13k, 23M, 235G)
373 #define BB_FEATURE_HUMAN_READABLE
375 // Support for the find -type option.
376 #define BB_FEATURE_FIND_TYPE
378 // Support for the find -perm option.
379 #define BB_FEATURE_FIND_PERM
381 // Support for the find -mtine option.
382 #define BB_FEATURE_FIND_MTIME
384 // Support for the -A -B and -C context flags in grep
385 //#define BB_FEATURE_GREP_CONTEXT
387 // Support for the EGREP applet (alias to the grep applet)
388 //#define BB_FEATURE_GREP_EGREP_ALIAS
390 // Tell tftp what commands that should be supported.
391 #define BB_FEATURE_TFTP_PUT
392 #define BB_FEATURE_TFTP_GET
395 #define BB_FEATURE_VI_COLON // ":" colon commands, no "ex" mode
396 #define BB_FEATURE_VI_YANKMARK // Yank/Put commands and Mark cmds
397 #define BB_FEATURE_VI_SEARCH // search and replace cmds
398 #define BB_FEATURE_VI_USE_SIGNALS // catch signals
399 #define BB_FEATURE_VI_DOT_CMD // remember previous cmd and "." cmd
400 #define BB_FEATURE_VI_READONLY // vi -R and "view" mode
401 #define BB_FEATURE_VI_SETOPTS // set-able options, ai ic showmatch
402 #define BB_FEATURE_VI_SET // :set
403 #define BB_FEATURE_VI_WIN_RESIZE // handle window resize
405 // Enable a if you system have setuped locale
406 //#define BB_LOCALE_SUPPORT
408 // Support for TELNET to pass TERM type to remote host. Adds 384 bytes.
409 #define BB_FEATURE_TELNET_TTYPE
411 // Support for devfs.
412 //#define BB_FEATURE_DEVFS
414 // End of Features List
421 //---------------------------------------------------
422 // Nothing beyond this point should ever be touched by
423 // mere mortals so leave this stuff alone.
425 #include <features.h>
426 #if defined __UCLIBC__ && ! defined __UCLIBC_HAS_MMU__
427 #undef BB_RPM2CPIO /* Uses gz_open(), which uses fork() */
428 #undef BB_DPKG_DEB /* Uses gz_open(), which uses fork() */
429 #undef BB_FEATURE_ASH /* Uses fork() */
430 #undef BB_FEATURE_HUSH /* Uses fork() */
431 #undef BB_FEATURE_LASH /* Uses fork() */
432 #undef BB_INIT /* Uses fork() */
433 #undef BB_FEATURE_TAR_GZIP /* Uses fork() */
434 #undef BB_SYSLOGD /* Uses daemon() */
435 #undef BB_KLOGD /* Uses daemon() */
436 #undef BB_UPDATE /* Uses daemon() */
439 #if defined BB_FEATURE_COMMAND_EDITING
442 #undef BB_FEATURE_COMMAND_EDITING
443 #undef BB_FEATURE_COMMAND_TAB_COMPLETION
444 #undef BB_FEATURE_COMMAND_USERNAME_COMPLETION
445 #undef BB_FEATURE_SH_FANCY_PROMPT
447 #if ! defined BB_FEATURE_LASH && ! defined BB_FEATURE_HUSH && ! defined BB_FEATURE_MSH && ! defined BB_FEATURE_ASH
448 #define BB_FEATURE_MSH
450 #if defined BB_FEATURE_ASH
451 #undef BB_FEATURE_MSH
452 #undef BB_FEATURE_HUSH
453 #undef BB_FEATURE_LASH
454 #elif defined BB_FEATURE_MSH
455 #undef BB_FEATURE_HUSH
456 #undef BB_FEATURE_LASH
457 #elif defined BB_FEATURE_HUSH
458 #undef BB_FEATURE_LASH
461 #undef BB_FEATURE_SH_APPLETS_ALWAYS_WIN
462 #undef BB_FEATURE_SH_STANDALONE_SHELL
463 #undef BB_FEATURE_SH_FANCY_PROMPT
473 #undef BB_FEATURE_LINUXRC
476 #if defined BB_MOUNT && defined BB_FEATURE_NFSMOUNT
480 #if defined BB_FEATURE_AUTOWIDTH
481 #ifndef BB_FEATURE_USE_TERMIOS
482 #define BB_FEATURE_USE_TERMIOS
486 #if defined BB_INSMOD || defined BB_LSMOD
487 #if ! defined BB_FEATURE_NEW_MODULE_INTERFACE && ! defined BB_FEATURE_OLD_MODULE_INTERFACE
488 #define BB_FEATURE_NEW_MODULE_INTERFACE
493 #if defined BB_FEATURE_IPC_SYSLOG