summaryrefslogtreecommitdiff
path: root/Makefile
blob: d43360d320e78c56797f85cdd6218d2b2eb7130a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
# Makefile for busybox
#
# Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
#
# Licensed under GPLv2, see the file LICENSE in this tarball for details.
#

#--------------------------------------------------------------
# You shouldn't need to mess with anything beyond this point...
#--------------------------------------------------------------
noconfig_targets := menuconfig config oldconfig randconfig \
	defconfig allyesconfig allnoconfig allbareconfig \
	clean distclean \
	release tags

# the toplevel sourcedir
ifndef top_srcdir
top_srcdir=$(CURDIR)
endif
# toplevel directory of the object-tree
ifndef top_builddir
top_builddir=$(CURDIR)
endif

export srctree=$(top_srcdir)
vpath %/Config.in $(srctree)

DIRS:=applets archival archival/libunarchive coreutils console-tools \
	debianutils editors findutils init miscutils modutils networking \
	networking/libiproute networking/udhcp procps loginutils shell \
	sysklogd util-linux e2fsprogs libpwdgrp coreutils/libcoreutils libbb

SRC_DIRS:=$(patsubst %,$(top_srcdir)/%,$(DIRS))

# That's our default target when none is given on the command line
.PHONY: _all
_all:

CONFIG_CONFIG_IN = $(top_srcdir)/Config.in
CONFIG_DEFCONFIG = $(top_srcdir)/defconfig

ifeq ($(KBUILD_SRC),)

ifdef O
  ifeq ("$(origin O)", "command line")
    KBUILD_OUTPUT := $(O)
    top_builddir := $(O)
  endif
else
# If no alternate output-dir was specified, we build in cwd
# We are using KBUILD_OUTPUT nevertheless to make sure that we create
# Rules.mak and the toplevel Makefile, in case they don't exist.
  KBUILD_OUTPUT := $(top_builddir)
endif

ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
# pull in OS specific commands like cp, mkdir, etc. early
-include $(top_srcdir)/Rules.mak
endif

# All object directories.
OBJ_DIRS := $(DIRS)
all_tree := $(patsubst %,$(top_builddir)/%,$(OBJ_DIRS) scripts scripts/config include)
all_tree: $(all_tree)
$(all_tree):
	@mkdir -p "$@"

ifneq ($(KBUILD_OUTPUT),)
# Invoke a second make in the output directory, passing relevant variables
# Check that the output directory actually exists
saved-output := $(KBUILD_OUTPUT)
KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
$(if $(wildcard $(KBUILD_OUTPUT)),, \
     $(error output directory "$(saved-output)" does not exist))

.PHONY: $(MAKECMDGOALS)

$(filter-out _all,$(MAKECMDGOALS)) _all: $(KBUILD_OUTPUT)/Rules.mak $(KBUILD_OUTPUT)/Makefile all_tree
	$(MAKE) -C $(KBUILD_OUTPUT) \
	top_srcdir=$(top_srcdir) \
	top_builddir=$(top_builddir) \
	KBUILD_SRC=$(top_srcdir) \
	-f $(CURDIR)/Makefile $@

$(KBUILD_OUTPUT)/Rules.mak:
	@echo > $@
	@echo top_srcdir=$(top_srcdir) >> $@
	@echo top_builddir=$(KBUILD_OUTPUT) >> $@
	@echo include $(top_srcdir)/Rules.mak >> $@

$(KBUILD_OUTPUT)/Makefile:
	@echo > $@
	@echo top_srcdir=$(top_srcdir) >> $@
	@echo top_builddir=$(KBUILD_OUTPUT) >> $@
	@echo KBUILD_SRC='$$(top_srcdir)' >> $@
	@echo include '$$(KBUILD_SRC)'/Makefile >> $@

# Leave processing to above invocation of make
skip-makefile := 1
endif # ifneq ($(KBUILD_OUTPUT),)
endif # ifeq ($(KBUILD_SRC),)

ifeq ($(skip-makefile),)

# We only need a copy of the Makefile for the config targets and reuse
# the rest from the source directory, i.e. we do not cp ALL_MAKEFILES.
scripts/config/Makefile: $(top_srcdir)/scripts/config/Makefile
	cp $< $@

_all: all

help:
	@echo 'Cleaning:'
	@echo '  clean			- delete temporary files created by build'
	@echo '  distclean		- delete all non-source files (including .config)'
	@echo
	@echo 'Build:'
	@echo '  all			- Executable and documentation'
	@echo '  busybox		- the swiss-army executable'
	@echo '  doc			- docs/BusyBox.{txt,html,1}'
	@echo
	@echo 'Configuration:'
	@echo '  allnoconfig		- disable all symbols in .config'
	@echo '  allyesconfig		- enable (almost) all symbols in .config'
	@echo '  allbareconfig		- enable all basics without any features'
	@echo '  config		- text based configurator (of last resort)'
	@echo '  defconfig		- set .config to defaults'
	@echo '  menuconfig		- interactive curses-based configurator'
	@echo '  oldconfig		- resolve any unresolved symbols in .config'
	@echo
	@echo 'Installation:'
	@echo '  install		- install busybox into $prefix'
	@echo '  uninstall'
	@echo
	@echo 'Development:'
	@echo '  check			- run the test suite for all applets'
	@echo '  randconfig		- generate a random configuration'
	@echo '  release		- create a distribution tarball'
	@echo '  sizes			- show size of all enabled busybox symbols'
	@echo


include $(top_srcdir)/Rules.mak

ifneq ($(strip $(HAVE_DOT_CONFIG)),y)

# Default target if none was requested explicitly
all: menuconfig

# warn if no configuration exists and we are asked to build a non-config target
.config:
	@echo ""
	@echo "No $(top_builddir)/$@ found!"
	@echo "Please refer to 'make  help', section Configuration."
	@echo ""
	@exit 1

# configuration
# ---------------------------------------------------------------------------

scripts/config/conf: scripts/config/Makefile
	$(MAKE) -C scripts/config conf
	-@if [ ! -f .config ] ; then \
		cp $(CONFIG_DEFCONFIG) .config; \
	fi

scripts/config/mconf: scripts/config/Makefile
	$(MAKE) -C scripts/config ncurses conf mconf
	-@if [ ! -f .config ] ; then \
		cp $(CONFIG_DEFCONFIG) .config; \
	fi

menuconfig: scripts/config/mconf
	@./scripts/config/mconf $(CONFIG_CONFIG_IN)

config: scripts/config/conf
	@./scripts/config/conf $(CONFIG_CONFIG_IN)

oldconfig: scripts/config/conf
	@./scripts/config/conf -o $(CONFIG_CONFIG_IN)

randconfig: scripts/config/conf
	@./scripts/config/conf -r $(CONFIG_CONFIG_IN)

allyesconfig: scripts/config/conf
	@./scripts/config/conf -y $(CONFIG_CONFIG_IN)
	sed -i -r -e "s/^(USING_CROSS_COMPILER)=.*/# \1 is not set/" .config
	echo "CONFIG_FEATURE_SHARED_BUSYBOX=y" >> .config
	@./scripts/config/conf -o $(CONFIG_CONFIG_IN)

allnoconfig: scripts/config/conf
	@./scripts/config/conf -n $(CONFIG_CONFIG_IN)

#defconfig: scripts/config/conf
#	@./scripts/config/conf -d $(CONFIG_CONFIG_IN)

defconfig: scripts/config/conf
	@./scripts/config/conf -y $(CONFIG_CONFIG_IN)
	sed -i -r -e "s/^(USING_CROSS_COMPILER|CONFIG_(DEBUG.*|STATIC|SELINUX|FEATURE_DEVFS|BUILD_AT_ONCE|BUILD_LIBBUSYBOX|FEATURE_FULL_LIBBUSYBOX|FEATURE_SHARED_BUSYBOX))=.*/# \1 is not set/" .config
	@./scripts/config/conf -o $(CONFIG_CONFIG_IN)


allbareconfig: scripts/config/conf
	@./scripts/config/conf -y $(CONFIG_CONFIG_IN)
	@sed -i -r -e "s/^(USING_CROSS_COMPILER|CONFIG_(DEBUG|STATIC|SELINUX|DEVFSD|NC_GAPING_SECURITY_HOLE|BUILD_AT_ONCE)).*/# \1 is not set/" .config
	@sed -i -e "/FEATURE/s/=.*//;/^[^#]/s/.*FEATURE.*/# \0 is not set/;" .config
	@echo "CONFIG_FEATURE_BUFFERS_GO_ON_STACK=y" >> .config
	@./scripts/config/conf -o $(CONFIG_CONFIG_IN)

else # ifneq ($(strip $(HAVE_DOT_CONFIG)),y)

all: busybox busybox.links doc

# In this section, we need .config
-include $(top_builddir)/.config.cmd
include $(patsubst %,%/Makefile.in, $(SRC_DIRS))

endif # ifneq ($(strip $(HAVE_DOT_CONFIG)),y)

-include $(top_builddir)/.config
-include $(top_builddir)/.depend


ifeq ($(strip $(CONFIG_BUILD_AT_ONCE)),y)
libraries-y:=
# Which parts of the internal libs are requested?
# Per default we only want what was actually selected.
# -a denotes all while -y denotes the selected ones.
ifeq ($(strip $(CONFIG_FEATURE_FULL_LIBBUSYBOX)),y)
LIBRARY_DEFINE:=$(LIBRARY_DEFINE-a)
LIBRARY_SRC   :=$(LIBRARY_SRC-a)
else # CONFIG_FEATURE_FULL_LIBBUSYBOX
LIBRARY_DEFINE:=$(LIBRARY_DEFINE-y)
LIBRARY_SRC   :=$(LIBRARY_SRC-y)
endif # CONFIG_FEATURE_FULL_LIBBUSYBOX
APPLET_SRC:=$(APPLET_SRC-y)
APPLETS_DEFINE:=$(APPLETS_DEFINE-y)
else  # CONFIG_BUILD_AT_ONCE
# no --combine, build archives out of the individual .o
# This was the old way the binary was built.
libbusybox-obj:=archival/libunarchive/libunarchive.a \
	networking/libiproute/libiproute.a \
	libpwdgrp/libpwdgrp.a \
	coreutils/libcoreutils/libcoreutils.a \
	libbb/libbb.a
libbusybox-obj:=$(patsubst %,$(top_builddir)/%,$(libbusybox-obj))

ifeq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
# linking against libbusybox, so don't build the .a already contained in the .so
libraries-y:=$(filter-out $(libbusybox-obj),$(libraries-y))
endif # CONFIG_FEATURE_SHARED_BUSYBOX
endif # CONFIG_BUILD_AT_ONCE


ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
LD_LIBBUSYBOX:=libbusybox.so
LIBBUSYBOX_SONAME:=$(LD_LIBBUSYBOX).$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL_VERSION)
DO_INSTALL_LIBS:=$(LD_LIBBUSYBOX) \
	$(LD_LIBBUSYBOX).$(MAJOR_VERSION) \
	$(LD_LIBBUSYBOX).$(MAJOR_VERSION).$(MINOR_VERSION)

ifeq ($(strip $(CONFIG_BUILD_AT_ONCE)),y)
ifneq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
# --combine but not linking against libbusybox, so compile all
BUSYBOX_SRC   := $(LIBRARY_SRC)
BUSYBOX_DEFINE:= $(LIBRARY_DEFINE)
endif # !CONFIG_FEATURE_SHARED_BUSYBOX
$(LIBBUSYBOX_SONAME): $(LIBRARY_SRC)
else # CONFIG_BUILD_AT_ONCE
$(LIBBUSYBOX_SONAME): $(libbusybox-obj)
endif # CONFIG_BUILD_AT_ONCE
endif # CONFIG_BUILD_LIBBUSYBOX

ifeq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
LDBUSYBOX:=-L$(top_builddir) -lbusybox
endif

ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
$(LIBBUSYBOX_SONAME):
ifndef MAJOR_VERSION
	$(error MAJOR_VERSION needed for $@ is not defined)
endif
	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(LDFLAGS) -shared \
	$(CFLAGS_PIC) \
	-Wl,-soname=$(LD_LIBBUSYBOX).$(MAJOR_VERSION) \
	-Wl,-z,combreloc $(LIB_LDFLAGS) \
	-o $(@) \
	-Wl,--start-group -Wl,--whole-archive \
	$(LIBRARY_DEFINE) $(^) \
	-Wl,--no-whole-archive -Wl,--end-group
	$(RM_F) $(DO_INSTALL_LIBS)
	for i in $(DO_INSTALL_LIBS); do $(LN_S) -v $(@) $$i ; done
	$(STRIPCMD) $@

endif # ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)

busybox: .depend $(LIBBUSYBOX_SONAME) $(BUSYBOX_SRC) $(libraries-y)
	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(PROG_CFLAGS) $(LDFLAGS)  \
	-o $@ -Wl,--start-group  \
	$(APPLETS_DEFINE) $(APPLET_SRC) \
	$(BUSYBOX_DEFINE) $(BUSYBOX_SRC) $(libraries-y) \
	$(LDBUSYBOX) $(LIBRARIES) \
	-Wl,--end-group
	$(STRIPCMD) $@

busybox.links: $(top_srcdir)/applets/busybox.mkll include/bb_config.h $(top_srcdir)/include/applets.h
	- $(SHELL) $^ >$@

install: $(top_srcdir)/applets/install.sh busybox busybox.links
	DO_INSTALL_LIBS="$(strip $(LIBBUSYBOX_SONAME) $(DO_INSTALL_LIBS))" \
		$(SHELL) $< $(PREFIX) $(INSTALL_OPTS)
ifeq ($(strip $(CONFIG_FEATURE_SUID)),y)
	@echo
	@echo
	@echo --------------------------------------------------
	@echo You will probably need to make your busybox binary
	@echo setuid root to ensure all configured applets will
	@echo work properly.
	@echo --------------------------------------------------
	@echo
endif

uninstall: busybox.links
	$(RM_F) $(PREFIX)/bin/busybox
	for i in `cat busybox.links` ; do $(RM_F) $(PREFIX)$$i; done
ifneq ($(strip $(DO_INSTALL_LIBS)),n)
	for i in $(LIBBUSYBOX_SONAME) $(DO_INSTALL_LIBS); do \
		$(RM_F) $(PREFIX)$$i; \
	done
endif

# see if we are in verbose mode
KBUILD_VERBOSE :=
ifdef V
  ifeq ("$(origin V)", "command line")
    KBUILD_VERBOSE := $(V)
  endif
endif
ifneq ($(strip $(KBUILD_VERBOSE)),)
  CHECK_VERBOSE := -v
# ARFLAGS+=v
endif
check test: busybox
	bindir=$(top_builddir) srcdir=$(top_srcdir)/testsuite \
	$(top_srcdir)/testsuite/runtest $(CHECK_VERBOSE)

sizes:
	-$(RM_F) busybox
	$(MAKE) top_srcdir=$(top_srcdir) top_builddir=$(top_builddir) \
		-f $(top_srcdir)/Makefile STRIPCMD=/bin/true
	$(NM) --size-sort busybox

# Documentation Targets
doc: docs/busybox.pod docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html

docs/busybox.pod : $(top_srcdir)/docs/busybox_header.pod $(top_srcdir)/include/usage.h $(top_srcdir)/docs/busybox_footer.pod
	-mkdir -p docs
	- ( cat $(top_srcdir)/docs/busybox_header.pod; \
	    $(top_srcdir)/docs/autodocifier.pl $(top_srcdir)/include/usage.h; \
	    cat $(top_srcdir)/docs/busybox_footer.pod ) > docs/busybox.pod

docs/BusyBox.txt: docs/busybox.pod
	$(SECHO)
	$(SECHO) BusyBox Documentation
	$(SECHO)
	-mkdir -p docs
	-pod2text $< > $@

docs/BusyBox.1: docs/busybox.pod
	- mkdir -p docs
	- pod2man --center=BusyBox --release="version $(VERSION)" \
		$< > $@

docs/BusyBox.html: docs/busybox.net/BusyBox.html
	- mkdir -p docs
	-@ $(RM_F) docs/BusyBox.html
	-@ cp docs/busybox.net/BusyBox.html docs/BusyBox.html

docs/busybox.net/BusyBox.html: docs/busybox.pod
	-@ mkdir -p docs/busybox.net
	-  pod2html --noindex $< > \
	    docs/busybox.net/BusyBox.html
	-@ $(RM_F) pod2htm*

# The nifty new buildsystem stuff
scripts/bb_mkdep: $(top_srcdir)/scripts/bb_mkdep.c
	$(HOSTCC) $(HOSTCFLAGS) -o $@ $<

DEP_INCLUDES := include/config.h include/bb_config.h include/_usage.h

ifeq ($(strip $(CONFIG_BBCONFIG)),y)
DEP_INCLUDES += include/bbconfigopts.h

include/bbconfigopts.h: .config
	$(top_srcdir)/scripts/config/mkconfigs > $@
endif

depend dep: .depend
.depend: scripts/bb_mkdep $(DEP_INCLUDES)
	@$(RM_F) .depend
	@mkdir -p include/config
	scripts/bb_mkdep -c include/config.h -c include/bb_config.h \
			-I $(top_srcdir)/include $(top_srcdir) > $@.tmp
	mv $@.tmp $@

include/config.h: .config
	@if [ ! -x $(top_builddir)/scripts/config/conf ] ; then \
	    $(MAKE) -C scripts/config conf; \
	fi;
	@$(top_builddir)/scripts/config/conf -o $(CONFIG_CONFIG_IN)

include/bb_config.h: include/config.h
	@echo -e "#ifndef BB_CONFIG_H\n#define BB_CONFIG_H" > $@
	@sed -e 's/#undef CONFIG_\(.*\)/#define ENABLE_\1 0/' \
	    -e 's/#define CONFIG_\(.*\)/#define CONFIG_\1\n#define ENABLE_\1/' \
		< $< >> $@
	@echo "#endif" >> $@

# Create macros for usage.h, e.g.:
#if ENABLE_HAVE_DOT_CONFIG
#define USAGE_HAVE_DOT_CONFIG(a) a
#else
#define USAGE_HAVE_DOT_CONFIG(a)
#endif
include/_usage.h: .config
	awk '/CONFIG|BB_APPLET/{gsub("#[[:space:]]*|=y|.*CONFIG_|.*BB_APPLET_","");if(!/=/){print("#if ENABLE_"$$1"\n#define USAGE_"$$1"(a) a\n#else\n#define USAGE_"$$1"(a)\n#endif");}}' $(<) > $(@)

clean:
	- $(MAKE) -C scripts/config $@
	- $(RM_F) docs/busybox.dvi docs/busybox.ps \
	    docs/busybox.pod docs/busybox.net/busybox.html \
	    docs/busybox pod2htm* *.gdb *.elf *~ core .*config.log \
	    docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html \
	    docs/busybox.net/BusyBox.html busybox.links \
	    $(DO_INSTALL_LIBS) $(LIBBUSYBOX_SONAME) \
	    .config.old busybox
	- rm -rf _install testsuite/links
	- find . -name .\*.flags -exec $(RM_F) {} \;
	- find . -name \*.o -exec $(RM_F) {} \;
	- find . -name \*.a -exec $(RM_F) {} \;
	- find . -name \*.so -exec $(RM_F) {} \;

distclean: clean
	- $(RM_F) scripts/bb_mkdep
	- rm -rf include/config $(DEP_INCLUDES)
	- find . -name .depend -exec $(RM_F) {} \;
	$(RM_F) .config .config.old .config.cmd

release: distclean #doc
	cd ..; \
	rm -rf $(PROG)-$(VERSION); \
	cp -a busybox $(PROG)-$(VERSION); \
	\
	find $(PROG)-$(VERSION)/ -type d \
		-name .svn \
		-print \
		-exec rm -rf {} \; ; \
	\
	find $(PROG)-$(VERSION)/ -type f \
		-name .\#* \
		-print \
		-exec $(RM_F) {} \; ; \
	\
	tar -cvzf $(PROG)-$(VERSION).tar.gz $(PROG)-$(VERSION)/;

tags:
	ctags -R .


endif # ifeq ($(skip-makefile),)

.PHONY: dummy subdirs release distclean clean config oldconfig \
	menuconfig tags check test depend dep buildtree