3 # Copyright (C) 1999,2000,2001 Erik Andersen <andersee@debian.org>
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 2 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software
17 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 BUILDTIME := $(shell TZ=UTC date --utc "+%Y.%m.%d-%H:%M%z")
25 # With a modern GNU make(1) (highly recommended, that's what all the
26 # developers use), all of the following configuration values can be
27 # overridden at the command line. For example:
28 # make CROSS=powerpc-linux- BB_SRC_DIR=$HOME/busybox PREFIX=/mnt/app
30 # If you want to add some simple compiler switches (like -march=i686),
31 # especially from the command line, use this instead of CFLAGS directly.
32 # For optimization overrides, it's better still to set OPTIMIZATION.
35 # If you want a static binary, turn this on.
38 # Set the following to `true' to make a debuggable build.
39 # Leave this set to `false' for production use.
40 # eg: `make DODEBUG=true tests'
41 # Do not enable this for production builds...
44 # Setting this to `true' will cause busybox to directly use the system's
45 # password and group functions. Assuming you use GNU libc, when this is
46 # `true', you will need to install the /etc/nsswitch.conf configuration file
47 # and the required libnss_* libraries. This generally makes your embedded
48 # system quite a bit larger... If you leave this off, busybox will directly
49 # use the /etc/password, /etc/group files (and your system will be smaller, and
50 # I will get fewer emails asking about how glibc NSS works). Enabling this adds
51 # just 1.4k to the binary size (which is a _lot_ less then glibc NSS costs),
52 # Most people will want to leave this set to false.
53 USE_SYSTEM_PWD_GRP = false
55 # This enables compiling with dmalloc ( http://dmalloc.com/ )
56 # which is an excellent public domain mem leak and malloc problem
57 # detector. To enable dmalloc, before running busybox you will
58 # want to first set up your environment.
59 # eg: `export DMALLOC_OPTIONS=debug=0x14f47d83,inter=100,log=logfile`
60 # Do not enable this for production builds...
63 # If you want large file summit support, turn this on.
64 # This has no effect if you don't have a kernel with lfs
65 # support, and a system with libc-2.1.3 or later.
66 # Some of the programs that can benefit from lfs support
67 # are dd, gzip, mount, tar, and mkfs_minix.
68 # LFS allows you to use the above programs for files
72 # If you have a "pristine" source directory, point BB_SRC_DIR to it.
73 # Experimental and incomplete; tell the mailing list
74 # <busybox@opensource.lineo.com> if you do or don't like it so far.
77 # If you are running a cross compiler, you may want to set this
78 # to something more interesting, like "powerpc-linux-".
82 STRIPTOOL = $(CROSS)strip
84 # To compile vs uClibc, just use the compiler wrapper built by uClibc...
85 # This make things very easy? Everything should compile and work as
86 # expected these days...
87 #CC = ../uClibc/extra/gcc-uClibc/gcc-uClibc-i386
89 # To compile vs some other alternative libc, you may need to use/adjust
90 # the following lines to meet your needs...
91 #LIBCDIR=/usr/i486-linuxlibc1/
93 #LIBRARIES = $(LIBCDIR)/libc.a -lgcc
94 #CROSS_CFLAGS+=-nostdinc -I$(LIBCDIR)/include -I$(GCCINCDIR)
95 #GCCINCDIR = $(shell gcc -print-search-dirs | sed -ne "s/install: \(.*\)/\1include/gp")
97 # use '-Os' optimization if available, else use -O2
98 OPTIMIZATION := $(shell if $(CC) -Os -S -o /dev/null -xc /dev/null >/dev/null 2>&1; \
99 then echo "-Os"; else echo "-O2" ; fi)
104 #--------------------------------------------------------
105 # If you're going to do a lot of builds with a non-vanilla configuration,
106 # it makes sense to adjust parameters above, so you can type "make"
107 # by itself, instead of following it by the same half-dozen overrides
108 # every time. The stuff below, on the other hand, is probably less
109 # prone to casual user adjustment.
112 ifeq ($(strip $(DOLFS)),true)
113 # For large file summit support
114 CFLAGS+=-D_FILE_OFFSET_BITS=64
116 ifeq ($(strip $(DODMALLOC)),true)
117 # For testing mem leaks with dmalloc
119 LIBRARIES = -ldmalloc
120 # Force debug=true, since this is useless when not debugging...
123 ifeq ($(strip $(DODEBUG)),true)
124 CFLAGS += $(WARNINGS) -g -D_GNU_SOURCE
125 LDFLAGS += -Wl,-warn-common
128 CFLAGS += $(WARNINGS) $(OPTIMIZATION) -fomit-frame-pointer -D_GNU_SOURCE
129 LDFLAGS += -s -Wl,-warn-common
130 STRIP = $(STRIPTOOL) --remove-section=.note --remove-section=.comment $(PROG)
132 ifeq ($(strip $(DOSTATIC)),true)
135 #use '-ffunction-sections -fdata-sections' and '--gc-sections' (if they
136 # work) to try and strip out any unused junk. Doesn't do much for me,
137 # but you may want to give it a shot...
139 #ifeq ($(shell $(CC) -ffunction-sections -fdata-sections -S \
140 # -o /dev/null -xc /dev/null 2>/dev/null && $(LD) \
141 # --gc-sections -v >/dev/null && echo 1),1)
142 # CFLAGS += -ffunction-sections -fdata-sections
143 # LDFLAGS += --gc-sections
148 PREFIX = `pwd`/_install
151 # Additional complications due to support for pristine source dir.
152 # Include files in the build directory should take precedence over
153 # the copy in BB_SRC_DIR, both during the compilation phase and the
154 # shell script that finds the list of object files.
155 # Work in progress by <ldoolitt@recycle.lbl.gov>.
157 ifneq ($(strip $(BB_SRC_DIR)),)
158 VPATH = $(BB_SRC_DIR)
160 #ifneq ($(strip $(VPATH)),)
161 # CFLAGS += -I- -I. $(patsubst %,-I%,$(subst :, ,$(VPATH)))
164 # We need to set APPLET_SOURCES to something like
165 # $(shell busybox.sh Config.h)
166 # but in a manner that works with VPATH and BB_SRC_DIR.
167 # Possible ways to approach this:
169 # 1. Explicitly search through .:$(VPATH) for busybox.sh and config.h,
170 # then $(shell $(BUSYBOX_SH) $(CONFIG_H) $(BB_SRC_DIR))
172 # 2. Explicity search through .:$(VPATH) for slist.mk,
173 # then $(shell $(MAKE) -f $(SLIST_MK) VPATH=$(VPATH) BB_SRC_DIR=$(BB_SRC_DIR))
175 # 3. Create slist.mk in this directory, with commands embedded in
176 # a $(shell ...) command, and $(MAKE) it immediately.
178 # 4. Use a real rule within this makefile to create a file that sets
179 # APPLET_SOURCE_LIST, then include that file. Has complications
180 # with the first trip through the makefile (before processing the
181 # include) trying to do too much, and a spurious warning the first
186 #APPLET_SOURCES = $(shell \
187 # echo -e 'all: busybox.sh Config.h\n\t@ $$(SHELL) $$^ $$(BB_SRC_DIR)' >slist.mk; \
188 # make -f slist.mk VPATH=$(VPATH) BB_SRC_DIR=$(BB_SRC_DIR) \
191 -include applet_source_list
193 OBJECTS = $(APPLET_SOURCES:.c=.o) busybox.o messages.o usage.o utility.o
194 CFLAGS += $(CROSS_CFLAGS)
195 CFLAGS += -DBB_VER='"$(VERSION)"'
196 CFLAGS += -DBB_BT='"$(BUILDTIME)"'
198 CFLAGS += -DINIT_SCRIPT='"$(BB_INIT_SCRIPT)"'
201 ifneq ($(strip $(USE_SYSTEM_PWD_GRP)),true)
203 PWD_GRP_DIR = $(BB_SRC_DIR)$(PWD_GRP)
205 LIBRARIES += $(PWD_LIB)
206 PWD_CSRC=__getpwent.c pwent.c getpwnam.c getpwuid.c putpwent.c getpw.c \
207 fgetpwent.c __getgrent.c grent.c getgrnam.c getgrgid.c fgetgrent.c \
208 initgroups.c setgroups.c
209 PWD_OBJS=$(patsubst %.c,$(PWD_GRP)/%.o, $(PWD_CSRC))
210 PWD_CFLAGS = -I$(PWD_GRP_DIR)
212 CFLAGS += -DUSE_SYSTEM_PWD_GRP
215 # Put user-supplied flags at the end, where they
216 # have a chance of winning.
217 CFLAGS += $(CFLAGS_EXTRA)
219 .EXPORT_ALL_VARIABLES:
221 all: applet_source_list busybox busybox.links doc
223 applet_source_list: busybox.sh Config.h
224 (echo -n "APPLET_SOURCES := "; $(SHELL) $^ $(BB_SRC_DIR)) > $@
229 olddoc: docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html
231 docs/BusyBox.txt: docs/busybox.pod
233 @echo BusyBox Documentation
238 docs/BusyBox.1: docs/busybox.pod
240 - pod2man --center=BusyBox --release="version $(VERSION)" \
243 docs/BusyBox.html: docs/busybox.lineo.com/BusyBox.html
245 -@ rm -f docs/BusyBox.html
246 -@ ln -s busybox.lineo.com/BusyBox.html docs/BusyBox.html
248 docs/busybox.lineo.com/BusyBox.html: docs/busybox.pod
249 -@ mkdir -p docs/busybox.lineo.com
250 - pod2html --noindex $< > \
251 docs/busybox.lineo.com/BusyBox.html
255 # New docs based on DOCBOOK SGML
256 newdoc: docs/busybox.txt docs/busybox.pdf docs/busybox/busyboxdocumentation.html
258 docs/busybox.txt: docs/busybox.sgml
260 @echo BusyBox Documentation
263 (cd docs; sgmltools -b txt busybox.sgml)
265 docs/busybox.dvi: docs/busybox.sgml
267 (cd docs; sgmltools -b dvi busybox.sgml)
269 docs/busybox.ps: docs/busybox.sgml
271 (cd docs; sgmltools -b ps busybox.sgml)
273 docs/busybox.pdf: docs/busybox.ps
275 (cd docs; ps2pdf busybox.ps)
277 docs/busybox/busyboxdocumentation.html: docs/busybox.sgml
279 (cd docs/busybox.lineo.com; sgmltools -b html ../busybox.sgml)
282 busybox: $(PWD_LIB) $(OBJECTS)
283 $(CC) $(LDFLAGS) -o $@ $^ $(LIBRARIES)
286 # Without VPATH, rule expands to "/bin/sh busybox.mkll Config.h applets.h"
287 # but with VPATH, some or all of those file names are resolved to the
288 # directories in which they live.
289 busybox.links: busybox.mkll Config.h applets.h
292 nfsmount.o cmdedit.o: %.o: %.h
293 $(OBJECTS): %.o: %.c Config.h busybox.h applets.h Makefile
294 $(CC) $(CFLAGS) -I- -I. $(patsubst %,-I%,$(subst :, ,$(BB_SRC_DIR))) -c $< -o $*.o
296 $(PWD_OBJS): %.o: %.c Config.h busybox.h applets.h Makefile
297 - mkdir -p $(PWD_GRP)
298 $(CC) $(CFLAGS) $(PWD_CFLAGS) -c $< -o $*.o
300 $(PWD_LIB): $(PWD_OBJS)
301 $(AR) $(ARFLAGS) $(PWD_LIB) $^
311 cd tests && $(MAKE) all
314 - cd tests && $(MAKE) clean
315 - rm -f docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html \
316 docs/busybox.lineo.com/BusyBox.html
317 - rm -f docs/busybox.txt docs/busybox.dvi docs/busybox.ps \
318 docs/busybox.pdf docs/busybox.lineo.com/busybox.html
319 - rm -f multibuild.log Config.h.orig
320 - rm -rf docs/busybox _install $(PWD_LIB)
321 - rm -f busybox.links loop.h *~ slist.mk core applet_source_list
322 - find -name \*.o -exec rm -f {} \;
326 - cd tests && $(MAKE) distclean
328 install: install.sh busybox busybox.links
329 $(SHELL) $< $(PREFIX)
331 install-hardlinks: install.sh busybox busybox.links
332 $(SHELL) $< $(PREFIX) --hardlinks
335 @ echo VPATH=\"$(VPATH)\"
336 @ echo OBJECTS=\"$(OBJECTS)\"
338 dist release: distclean doc
340 rm -rf busybox-$(VERSION); \
341 cp -a busybox busybox-$(VERSION); \
343 find busybox-$(VERSION)/ -type d \
348 find busybox-$(VERSION)/ -type f \
353 find busybox-$(VERSION)/ -type f \
358 tar -cvzf busybox-$(VERSION).tar.gz busybox-$(VERSION)/;