Makefile

   1 # Makefile for busybox
   2 #
   3 # Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
   4 #
   5 # Licensed under GPLv2, see the file LICENSE in this tarball for details.
   6 #
   7
   8 #--------------------------------------------------------------
   9 # You shouldn't need to mess with anything beyond this point...
  10 #--------------------------------------------------------------
  11 noconfig_targets := menuconfig config oldconfig randconfig \
  12         defconfig allyesconfig allnoconfig allbareconfig \
  13         clean distclean help \
  14         release tags
  15
  16 # the toplevel sourcedir
  17 ifndef top_srcdir
  18 top_srcdir=$(CURDIR)
  19 endif
  20 # toplevel directory of the object-tree
  21 ifndef top_builddir
  22 top_builddir=$(CURDIR)
  23 endif
  24
  25 export srctree=$(top_srcdir)
  26 vpath %/Config.in $(srctree)
  27
  28 DIRS:=applets archival archival/libunarchive coreutils console-tools \
  29         debianutils editors findutils init miscutils modutils networking \
  30         networking/libiproute networking/udhcp procps loginutils shell \
  31         sysklogd util-linux e2fsprogs libpwdgrp coreutils/libcoreutils libbb
  32
  33 SRC_DIRS:=$(patsubst %,$(top_srcdir)/%,$(DIRS))
  34
  35 # That's our default target when none is given on the command line
  36 .PHONY: _all
  37 _all:
  38
  39 CONFIG_CONFIG_IN = $(top_srcdir)/Config.in
  40
  41 ifeq ($(KBUILD_SRC),)
  42
  43 ifdef O
  44   ifeq ("$(origin O)", "command line")
  45     KBUILD_OUTPUT := $(O)
  46     top_builddir := $(O)
  47   endif
  48 else
  49 # If no alternate output-dir was specified, we build in cwd
  50 # We are using KBUILD_OUTPUT nevertheless to make sure that we create
  51 # Rules.mak and the toplevel Makefile, in case they don't exist.
  52   KBUILD_OUTPUT := $(top_builddir)
  53 endif
  54
  55 ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
  56 # pull in OS specific commands like cp, mkdir, etc. early
  57 -include $(top_srcdir)/Rules.mak
  58 endif
  59
  60 # All object directories.
  61 OBJ_DIRS := $(DIRS)
  62 all_tree := $(patsubst %,$(top_builddir)/%,$(OBJ_DIRS) scripts scripts/config include)
  63 all_tree: $(all_tree)
  64 $(all_tree):
  65         @mkdir -p "$@"
  66
  67 ifneq ($(KBUILD_OUTPUT),)
  68 # Invoke a second make in the output directory, passing relevant variables
  69 # Check that the output directory actually exists
  70 saved-output := $(KBUILD_OUTPUT)
  71 KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
  72 $(if $(wildcard $(KBUILD_OUTPUT)),, \
  73      $(error output directory "$(saved-output)" does not exist))
  74
  75 .PHONY: $(MAKECMDGOALS)
  76
  77 $(filter-out _all,$(MAKECMDGOALS)) _all: $(KBUILD_OUTPUT)/Rules.mak $(KBUILD_OUTPUT)/Makefile all_tree
  78         $(Q)$(MAKE) -C $(KBUILD_OUTPUT) \
  79         top_srcdir=$(top_srcdir) \
  80         top_builddir=$(top_builddir) \
  81         KBUILD_SRC=$(top_srcdir) \
  82         -f $(CURDIR)/Makefile $@
  83
  84 $(KBUILD_OUTPUT)/Rules.mak:
  85         @echo > $@
  86         @echo top_srcdir=$(top_srcdir) >> $@
  87         @echo top_builddir=$(KBUILD_OUTPUT) >> $@
  88         @echo include $(top_srcdir)/Rules.mak >> $@
  89
  90 $(KBUILD_OUTPUT)/Makefile:
  91         @echo > $@
  92         @echo top_srcdir=$(top_srcdir) >> $@
  93         @echo top_builddir=$(KBUILD_OUTPUT) >> $@
  94         @echo KBUILD_SRC='$$(top_srcdir)' >> $@
  95         @echo include '$$(KBUILD_SRC)'/Makefile >> $@
  96
  97 # Leave processing to above invocation of make
  98 skip-makefile := 1
  99 endif # ifneq ($(KBUILD_OUTPUT),)
 100 endif # ifeq ($(KBUILD_SRC),)
 101
 102 ifeq ($(skip-makefile),)
 103
 104 # We only need a copy of the Makefile for the config targets and reuse
 105 # the rest from the source directory, i.e. we do not cp ALL_MAKEFILES.
 106 scripts/config/Makefile: $(top_srcdir)/scripts/config/Makefile
 107         cp $< $@
 108
 109 _all: all
 110
 111 help:
 112         @echo 'Cleaning:'
 113         @echo '  clean                  - delete temporary files created by build'
 114         @echo '  distclean              - delete all non-source files (including .config)'
 115         @echo
 116         @echo 'Build:'
 117         @echo '  all                    - Executable and documentation'
 118         @echo '  busybox                - the swiss-army executable'
 119         @echo '  doc                    - docs/BusyBox.{txt,html,1}'
 120         @echo
 121         @echo 'Configuration:'
 122         @echo '  allnoconfig            - disable all symbols in .config'
 123         @echo '  allyesconfig           - enable all symbols in .config (see defconfig)'
 124         @echo '  allbareconfig          - enable all applets without any sub-features'
 125         @echo '  config         - text based configurator (of last resort)'
 126         @echo '  defconfig              - set .config to largest generic configuration'
 127         @echo '  menuconfig             - interactive curses-based configurator'
 128         @echo '  oldconfig              - resolve any unresolved symbols in .config'
 129         @echo
 130         @echo 'Installation:'
 131         @echo '  install                - install busybox into $prefix'
 132         @echo '  uninstall'
 133         @echo
 134         @echo 'Development:'
 135         @echo '  check                  - run the test suite for all applets'
 136         @echo '  randconfig             - generate a random configuration'
 137         @echo '  release                - create a distribution tarball'
 138         @echo '  sizes                  - show size of all enabled busybox symbols'
 139         @echo
 140
 141
 142 include $(top_srcdir)/Rules.mak
 143
 144 ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
 145
 146 # Default target if none was requested explicitly
 147 all: defconfig menuconfig
 148
 149 # warn if no configuration exists and we are asked to build a non-config target
 150 .config:
 151         @echo ""
 152         @echo "No $(top_builddir)/$@ found!"
 153         @echo "Please refer to 'make  help', section Configuration."
 154         @echo ""
 155         @exit 1
 156
 157 # configuration
 158 # ---------------------------------------------------------------------------
 159
 160 scripts/config/conf: scripts/config/Makefile
 161         $(Q)$(MAKE) -C scripts/config conf
 162         -@if [ ! -f .config ] ; then \
 163                 touch .config; \
 164         fi
 165
 166 scripts/config/mconf: scripts/config/Makefile
 167         $(Q)$(MAKE) -C scripts/config ncurses conf mconf
 168         -@if [ ! -f .config ] ; then \
 169                 touch .config; \
 170         fi
 171
 172 menuconfig: scripts/config/mconf
 173         @[ -f .config ] || make $(MAKEFLAGS) defconfig
 174         @./scripts/config/mconf $(CONFIG_CONFIG_IN)
 175
 176 config: scripts/config/conf
 177         @./scripts/config/conf $(CONFIG_CONFIG_IN)
 178
 179 oldconfig: scripts/config/conf
 180         @./scripts/config/conf -o $(CONFIG_CONFIG_IN)
 181
 182 randconfig: scripts/config/conf
 183         @./scripts/config/conf -r $(CONFIG_CONFIG_IN)
 184
 185 allyesconfig: scripts/config/conf
 186         @./scripts/config/conf -y $(CONFIG_CONFIG_IN)
 187         @$(SED) -i -r -e "s/^(USING_CROSS_COMPILER)=.*/# \1 is not set/" .config
 188         @./scripts/config/conf -o $(CONFIG_CONFIG_IN)
 189
 190 allnoconfig: scripts/config/conf
 191         @./scripts/config/conf -n $(CONFIG_CONFIG_IN)
 192
 193 # defconfig is allyesconfig minus any features that are specialized enough
 194 # or cause enough behavior change that the user really should switch them on
 195 # manually if that's what they want.  Sort of "maximum sane config".
 196
 197 defconfig: scripts/config/conf
 198         @./scripts/config/conf -y $(CONFIG_CONFIG_IN)
 199         @$(SED) -i -r -e "s/^(USING_CROSS_COMPILER|CONFIG_(DEBUG.*|STATIC|SELINUX|BUILD_(AT_ONCE|LIBBUSYBOX)|FEATURE_(DEVFS|FULL_LIBBUSYBOX|SHARED_BUSYBOX|MTAB_SUPPORT|CLEAN_UP|UDHCP_DEBUG)|INSTALL_NO_USR))=.*/# \1 is not set/" .config
 200         @./scripts/config/conf -o $(CONFIG_CONFIG_IN)
 201
 202
 203 allbareconfig: scripts/config/conf
 204         @./scripts/config/conf -y $(CONFIG_CONFIG_IN)
 205         @$(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
 206         @$(SED) -i -e "/FEATURE/s/=.*//;/^[^#]/s/.*FEATURE.*/# \0 is not set/;" .config
 207         @echo "CONFIG_FEATURE_BUFFERS_GO_ON_STACK=y" >> .config
 208         @./scripts/config/conf -o $(CONFIG_CONFIG_IN)
 209
 210 else # ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
 211
 212 all: busybox busybox.links doc
 213
 214 # In this section, we need .config
 215 -include $(top_builddir)/.config.cmd
 216 include $(patsubst %,%/Makefile.in, $(SRC_DIRS))
 217
 218 endif # ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
 219
 220 -include $(top_builddir)/.config
 221 -include $(top_builddir)/.depend
 222
 223
 224 ifeq ($(strip $(CONFIG_BUILD_AT_ONCE)),y)
 225 libraries-y:=
 226 # Which parts of the internal libs are requested?
 227 # Per default we only want what was actually selected.
 228 # -a denotes all while -y denotes the selected ones.
 229 ifeq ($(strip $(CONFIG_FEATURE_FULL_LIBBUSYBOX)),y)
 230 LIBRARY_DEFINE:=$(LIBRARY_DEFINE-a)
 231 LIBRARY_SRC   :=$(LIBRARY_SRC-a)
 232 else # CONFIG_FEATURE_FULL_LIBBUSYBOX
 233 LIBRARY_DEFINE:=$(LIBRARY_DEFINE-y)
 234 LIBRARY_SRC   :=$(LIBRARY_SRC-y)
 235 endif # CONFIG_FEATURE_FULL_LIBBUSYBOX
 236 APPLET_SRC:=$(APPLET_SRC-y)
 237 APPLETS_DEFINE:=$(APPLETS_DEFINE-y)
 238 else  # CONFIG_BUILD_AT_ONCE
 239 # no --combine, build archives out of the individual .o
 240 # This was the old way the binary was built.
 241 libbusybox-obj:=archival/libunarchive/libunarchive.a \
 242         networking/libiproute/libiproute.a \
 243         libpwdgrp/libpwdgrp.a \
 244         coreutils/libcoreutils/libcoreutils.a \
 245         libbb/libbb.a
 246 libbusybox-obj:=$(patsubst %,$(top_builddir)/%,$(libbusybox-obj))
 247
 248 ifeq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
 249 # linking against libbusybox, so don't build the .a already contained in the .so
 250 libraries-y:=$(filter-out $(libbusybox-obj),$(libraries-y))
 251 endif # CONFIG_FEATURE_SHARED_BUSYBOX
 252 endif # CONFIG_BUILD_AT_ONCE
 253
 254
 255 ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
 256 LD_LIBBUSYBOX:=libbusybox.so
 257 LIBBUSYBOX_SONAME:=$(LD_LIBBUSYBOX).$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL_VERSION)
 258 DO_INSTALL_LIBS:=$(LD_LIBBUSYBOX) \
 259         $(LD_LIBBUSYBOX).$(MAJOR_VERSION) \
 260         $(LD_LIBBUSYBOX).$(MAJOR_VERSION).$(MINOR_VERSION)
 261
 262 ifeq ($(strip $(CONFIG_BUILD_AT_ONCE)),y)
 263 ifneq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
 264 # --combine but not linking against libbusybox, so compile all
 265 BUSYBOX_SRC   := $(LIBRARY_SRC)
 266 BUSYBOX_DEFINE:= $(LIBRARY_DEFINE)
 267 endif # !CONFIG_FEATURE_SHARED_BUSYBOX
 268 $(LIBBUSYBOX_SONAME): $(LIBRARY_SRC)
 269 else # CONFIG_BUILD_AT_ONCE
 270 $(LIBBUSYBOX_SONAME): $(libbusybox-obj)
 271 endif # CONFIG_BUILD_AT_ONCE
 272 endif # CONFIG_BUILD_LIBBUSYBOX
 273
 274 ifeq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
 275 LDBUSYBOX:=-L$(top_builddir) -lbusybox
 276 endif
 277
 278 ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
 279 $(LIBBUSYBOX_SONAME):
 280 ifndef MAJOR_VERSION
 281         $(error MAJOR_VERSION needed for $@ is not defined)
 282 endif
 283         $(do_link) $(LIB_CFLAGS) $(CFLAGS_COMBINE) \
 284         -Wl,-soname=$(LD_LIBBUSYBOX).$(MAJOR_VERSION) \
 285         -Wl,-z,combreloc $(LIB_LDFLAGS) \
 286         -o $(@) \
 287         -Wl,--start-group -Wl,--whole-archive \
 288         $(LIBRARY_DEFINE) $(^) \
 289         -Wl,--no-whole-archive -Wl,--end-group
 290         @rm -f $(DO_INSTALL_LIBS)
 291         @for i in $(DO_INSTALL_LIBS); do ln -s $(@) $$i ; done
 292         $(do_strip)
 293
 294 endif # ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
 295
 296 busybox_unstripped: .depend $(LIBBUSYBOX_SONAME) $(BUSYBOX_SRC) $(libraries-y)
 297         $(do_link) $(PROG_CFLAGS) $(PROG_LDFLAGS) $(CFLAGS_COMBINE) \
 298         -o $@ -Wl,--start-group  \
 299         $(APPLETS_DEFINE) $(APPLET_SRC) \
 300         $(BUSYBOX_DEFINE) $(BUSYBOX_SRC) $(libraries-y) \
 301         $(LDBUSYBOX) $(LIBRARIES) \
 302         -Wl,--end-group
 303
 304 busybox: busybox_unstripped
 305         $(Q)cp busybox_unstripped busybox
 306         $(do_strip)
 307
 308 busybox.links: $(top_srcdir)/applets/busybox.mkll include/bb_config.h $(top_srcdir)/include/applets.h
 309         $(Q)-$(SHELL) $^ >$@
 310
 311 install: $(top_srcdir)/applets/install.sh busybox busybox.links
 312         $(Q)DO_INSTALL_LIBS="$(strip $(LIBBUSYBOX_SONAME) $(DO_INSTALL_LIBS))" \
 313                 $(SHELL) $< $(PREFIX) $(INSTALL_OPTS)
 314 ifeq ($(strip $(CONFIG_FEATURE_SUID)),y)
 315         @echo
 316         @echo
 317         @echo --------------------------------------------------
 318         @echo You will probably need to make your busybox binary
 319         @echo setuid root to ensure all configured applets will
 320         @echo work properly.
 321         @echo --------------------------------------------------
 322         @echo
 323 endif
 324
 325 uninstall: busybox.links
 326         rm -f $(PREFIX)/bin/busybox
 327         for i in `cat busybox.links` ; do rm -f $(PREFIX)$$i; done
 328 ifneq ($(strip $(DO_INSTALL_LIBS)),n)
 329         for i in $(LIBBUSYBOX_SONAME) $(DO_INSTALL_LIBS); do \
 330                 rm -f $(PREFIX)$$i; \
 331         done
 332 endif
 333
 334 # see if we are in verbose mode
 335 KBUILD_VERBOSE :=
 336 ifdef V
 337   ifeq ("$(origin V)", "command line")
 338     KBUILD_VERBOSE := $(V)
 339   endif
 340 endif
 341 ifneq ($(strip $(KBUILD_VERBOSE)),)
 342   CHECK_VERBOSE := -v
 343 # ARFLAGS+=v
 344 endif
 345 check test: busybox
 346         bindir=$(top_builddir) srcdir=$(top_srcdir)/testsuite \
 347         $(top_srcdir)/testsuite/runtest $(CHECK_VERBOSE)
 348
 349 sizes: busybox_unstripped
 350         $(NM) --size-sort $(<)
 351
 352 # Documentation Targets
 353 doc: docs/busybox.pod docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html
 354
 355 docs/busybox.pod : $(top_srcdir)/docs/busybox_header.pod $(top_srcdir)/include/usage.h $(top_srcdir)/docs/busybox_footer.pod $(top_srcdir)/docs/autodocifier.pl
 356         $(disp_doc)
 357         $(Q)-mkdir -p docs
 358         $(Q)-( cat $(top_srcdir)/docs/busybox_header.pod ; \
 359             $(top_srcdir)/docs/autodocifier.pl $(top_srcdir)/include/usage.h ; \
 360             cat $(top_srcdir)/docs/busybox_footer.pod ; ) > docs/busybox.pod
 361
 362 docs/BusyBox.txt: docs/busybox.pod
 363         $(disp_doc)
 364         $(Q)-mkdir -p docs
 365         $(Q)-pod2text $< > $@
 366
 367 docs/BusyBox.1: docs/busybox.pod
 368         $(disp_doc)
 369         $(Q)-mkdir -p docs
 370         $(Q)-pod2man --center=BusyBox --release="version $(VERSION)" \
 371                 $< > $@
 372
 373 docs/BusyBox.html: docs/busybox.net/BusyBox.html
 374         $(disp_doc)
 375         $(Q)-mkdir -p docs
 376         $(Q)-rm -f docs/BusyBox.html
 377         $(Q)-cp docs/busybox.net/BusyBox.html docs/BusyBox.html
 378
 379 docs/busybox.net/BusyBox.html: docs/busybox.pod
 380         $(Q)-mkdir -p docs/busybox.net
 381         $(Q)-pod2html --noindex $< > \
 382             docs/busybox.net/BusyBox.html
 383         $(Q)-rm -f pod2htm*
 384
 385 # The nifty new dependency stuff
 386 scripts/bb_mkdep: $(top_srcdir)/scripts/bb_mkdep.c
 387         $(Q)$(HOSTCC) $(HOSTCFLAGS) -o $@ $<
 388
 389 DEP_INCLUDES := include/bb_config.h
 390
 391 ifeq ($(strip $(CONFIG_BBCONFIG)),y)
 392 DEP_INCLUDES += include/bbconfigopts.h
 393
 394 include/bbconfigopts.h: .config
 395         $(disp_gen)
 396         $(Q)$(top_srcdir)/scripts/config/mkconfigs > $@
 397 endif
 398
 399 depend dep: .depend
 400 .depend: scripts/bb_mkdep $(DEP_INCLUDES)
 401         $(disp_gen)
 402         $(Q)rm -f .depend
 403         $(Q)mkdir -p include/config
 404         $(Q)scripts/bb_mkdep -I $(top_srcdir)/include $(top_srcdir) > $@.tmp
 405         $(Q)mv $@.tmp $@
 406
 407 include/bb_config.h: .config
 408         @if [ ! -x $(top_builddir)/scripts/config/conf ] ; then \
 409             $(MAKE) -C scripts/config conf; \
 410         fi;
 411         @$(top_builddir)/scripts/config/conf -o $(CONFIG_CONFIG_IN)
 412
 413 clean:
 414         - $(MAKE) -C scripts/config $@
 415         - rm -f docs/busybox.dvi docs/busybox.ps \
 416             docs/busybox.pod docs/busybox.net/busybox.html \
 417             docs/busybox pod2htm* *.gdb *.elf *~ core .*config.log \
 418             docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html \
 419             docs/busybox.net/BusyBox.html busybox.links \
 420             libbusybox.so* \
 421             .config.old busybox busybox_unstripped
 422         - rm -r -f _install testsuite/links
 423         - find . -name .\*.flags -o -name \*.o  -o -name \*.om \
 424             -o -name \*.os -o -name \*.osm -o -name \*.a | xargs rm -f
 425
 426 distclean: clean
 427         - rm -f scripts/bb_mkdep
 428         - rm -r -f include/config $(DEP_INCLUDES)
 429         - find . -name .depend'*' | xargs rm -f
 430         rm -f .config .config.old .config.cmd
 431
 432 release: distclean #doc
 433         cd ..; \
 434         rm -r -f $(PROG)-$(VERSION); \
 435         cp -a busybox $(PROG)-$(VERSION); \
 436         \
 437         find $(PROG)-$(VERSION)/ -type d \
 438                 -name .svn \
 439                 -print \
 440                 -exec rm -r -f {} \; ; \
 441         \
 442         find $(PROG)-$(VERSION)/ -type f \
 443                 -name .\#* \
 444                 -print \
 445                 -exec rm -f {} \; ; \
 446         \
 447         tar -cvzf $(PROG)-$(VERSION).tar.gz $(PROG)-$(VERSION)/;
 448
 449 tags:
 450         ctags -R .
 451
 452
 453 endif # ifeq ($(skip-makefile),)
 454
 455 .PHONY: dummy subdirs release distclean clean config oldconfig \
 456         menuconfig tags check test depend dep buildtree