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 '  bloatcheck             - show size difference between busybox_unstripped'
 136         @echo '                           and busybox_old
 137         @echo '  check                  - run the test suite for all applets'
 138         @echo '  checkhelp              - check for missing help-entries in Config.in'
 139         @echo '  randconfig             - generate a random configuration'
 140         @echo '  release                - create a distribution tarball'
 141         @echo '  sizes                  - show size of all enabled busybox symbols'
 142         @echo '  objsizes               - show size of each .o object built'
 143         @echo
 144
 145
 146 include $(top_srcdir)/Rules.mak
 147
 148 ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
 149
 150 # Default target if none was requested explicitly
 151 all: menuconfig
 152
 153 # warn if no configuration exists and we are asked to build a non-config target
 154 .config:
 155         @echo ""
 156         @echo "No $(top_builddir)/$@ found!"
 157         @echo "Please refer to 'make  help', section Configuration."
 158         @echo ""
 159         @exit 1
 160
 161 # configuration
 162 # ---------------------------------------------------------------------------
 163
 164 scripts/config/conf: scripts/config/Makefile
 165         $(Q)$(MAKE) -C scripts/config conf
 166         -@if [ ! -f .config ] ; then \
 167                 touch .config; \
 168         fi
 169
 170 scripts/config/mconf: scripts/config/Makefile
 171         $(Q)$(MAKE) -C scripts/config ncurses conf mconf
 172         -@if [ ! -f .config ] ; then \
 173                 touch .config; \
 174         fi
 175
 176 menuconfig: scripts/config/mconf
 177         @[ -f .config ] || make $(MAKEFLAGS) defconfig
 178         @./scripts/config/mconf $(CONFIG_CONFIG_IN)
 179
 180 config: scripts/config/conf
 181         @./scripts/config/conf $(CONFIG_CONFIG_IN)
 182
 183 oldconfig: scripts/config/conf
 184         @./scripts/config/conf -o $(CONFIG_CONFIG_IN)
 185
 186 randconfig: scripts/config/conf
 187         @./scripts/config/conf -r $(CONFIG_CONFIG_IN)
 188
 189 allyesconfig: scripts/config/conf
 190         @./scripts/config/conf -y $(CONFIG_CONFIG_IN)
 191         @$(SED) -i -r -e "s/^(USING_CROSS_COMPILER)=.*/# \1 is not set/" .config
 192         @./scripts/config/conf -o $(CONFIG_CONFIG_IN)
 193
 194 allnoconfig: scripts/config/conf
 195         @./scripts/config/conf -n $(CONFIG_CONFIG_IN)
 196
 197 # defconfig is allyesconfig minus any features that are specialized enough
 198 # or cause enough behavior change that the user really should switch them on
 199 # manually if that's what they want.  Sort of "maximum sane config".
 200
 201 defconfig: scripts/config/conf
 202         @./scripts/config/conf -y $(CONFIG_CONFIG_IN)
 203         @$(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
 204         @./scripts/config/conf -o $(CONFIG_CONFIG_IN)
 205
 206
 207 allbareconfig: scripts/config/conf
 208         @./scripts/config/conf -y $(CONFIG_CONFIG_IN)
 209         @$(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
 210         @$(SED) -i -e "/FEATURE/s/=.*//;/^[^#]/s/.*FEATURE.*/# \0 is not set/;" .config
 211         @echo "CONFIG_FEATURE_BUFFERS_GO_ON_STACK=y" >> .config
 212         @yes n | ./scripts/config/conf -o $(CONFIG_CONFIG_IN)
 213
 214 else # ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
 215
 216 all: busybox busybox.links doc
 217
 218 # In this section, we need .config
 219 -include $(top_builddir)/.config.cmd
 220 include $(patsubst %,%/Makefile.in, $(SRC_DIRS))
 221
 222 endif # ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
 223
 224 -include $(top_builddir)/.config
 225 -include $(top_builddir)/.depend
 226
 227
 228 ifeq ($(strip $(CONFIG_BUILD_AT_ONCE)),y)
 229 libraries-y:=
 230 # Which parts of the internal libs are requested?
 231 # Per default we only want what was actually selected.
 232 # -a denotes all while -y denotes the selected ones.
 233 ifeq ($(strip $(CONFIG_FEATURE_FULL_LIBBUSYBOX)),y)
 234 LIBRARY_DEFINE:=$(LIBRARY_DEFINE-a)
 235 LIBRARY_SRC   :=$(LIBRARY_SRC-a)
 236 else # CONFIG_FEATURE_FULL_LIBBUSYBOX
 237 LIBRARY_DEFINE:=$(LIBRARY_DEFINE-y)
 238 LIBRARY_SRC   :=$(LIBRARY_SRC-y)
 239 endif # CONFIG_FEATURE_FULL_LIBBUSYBOX
 240 APPLET_SRC:=$(APPLET_SRC-y)
 241 APPLETS_DEFINE:=$(APPLETS_DEFINE-y)
 242 else  # CONFIG_BUILD_AT_ONCE
 243 # no --combine, build archives out of the individual .o
 244 # This was the old way the binary was built.
 245 libbusybox-obj:=archival/libunarchive/libunarchive.a \
 246         networking/libiproute/libiproute.a \
 247         libpwdgrp/libpwdgrp.a \
 248         coreutils/libcoreutils/libcoreutils.a \
 249         libbb/libbb.a
 250 libbusybox-obj:=$(patsubst %,$(top_builddir)/%,$(libbusybox-obj))
 251
 252 ifeq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
 253 # linking against libbusybox, so don't build the .a already contained in the .so
 254 libraries-y:=$(filter-out $(libbusybox-obj),$(libraries-y))
 255 endif # CONFIG_FEATURE_SHARED_BUSYBOX
 256 endif # CONFIG_BUILD_AT_ONCE
 257
 258
 259 ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
 260 LD_LIBBUSYBOX:=libbusybox.so
 261 LIBBUSYBOX_SONAME:=$(LD_LIBBUSYBOX).$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL_VERSION)
 262 DO_INSTALL_LIBS:=$(LD_LIBBUSYBOX) \
 263         $(LD_LIBBUSYBOX).$(MAJOR_VERSION) \
 264         $(LD_LIBBUSYBOX).$(MAJOR_VERSION).$(MINOR_VERSION)
 265 endif # CONFIG_BUILD_LIBBUSYBOX
 266
 267 ifeq ($(strip $(CONFIG_BUILD_AT_ONCE)),y)
 268 ifneq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
 269 # --combine but not linking against libbusybox, so compile all
 270 BUSYBOX_SRC   := $(LIBRARY_SRC)
 271 BUSYBOX_DEFINE:= $(LIBRARY_DEFINE)
 272 endif # !CONFIG_FEATURE_SHARED_BUSYBOX
 273 $(LIBBUSYBOX_SONAME): $(LIBRARY_SRC)
 274 else # CONFIG_BUILD_AT_ONCE
 275 $(LIBBUSYBOX_SONAME): $(libbusybox-obj)
 276 endif # CONFIG_BUILD_AT_ONCE
 277
 278 ifeq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
 279 LDBUSYBOX:=-L$(top_builddir) -lbusybox
 280 endif
 281
 282 ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
 283 $(LIBBUSYBOX_SONAME):
 284 ifndef MAJOR_VERSION
 285         $(error MAJOR_VERSION needed for $@ is not defined)
 286 endif
 287         $(do_link) $(LIB_CFLAGS) $(CFLAGS_COMBINE) \
 288         -Wl,-soname=$(LD_LIBBUSYBOX).$(MAJOR_VERSION) \
 289         -Wl,-z,combreloc $(LIB_LDFLAGS) \
 290         -o $(@) \
 291         -Wl,--start-group -Wl,--whole-archive \
 292         $(LIBRARY_DEFINE) $(^) \
 293         -Wl,--no-whole-archive -Wl,--end-group
 294         @rm -f $(DO_INSTALL_LIBS)
 295         @for i in $(DO_INSTALL_LIBS); do ln -s $(@) $$i ; done
 296         $(do_strip)
 297
 298 endif # ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
 299
 300 busybox_unstripped: .depend $(LIBBUSYBOX_SONAME) $(BUSYBOX_SRC) $(libraries-y)
 301         $(do_link) $(PROG_CFLAGS) $(PROG_LDFLAGS) $(CFLAGS_COMBINE) \
 302         -o $@ -Wl,--start-group  \
 303         $(APPLETS_DEFINE) $(APPLET_SRC) \
 304         $(BUSYBOX_DEFINE) $(BUSYBOX_SRC) $(libraries-y) \
 305         $(LDBUSYBOX) $(LIBRARIES) \
 306         -Wl,--end-group
 307
 308 busybox: busybox_unstripped
 309         $(Q)cp busybox_unstripped busybox
 310         $(do_strip)
 311
 312 %.bflt: %_unstripped
 313         $(do_elf2flt)
 314
 315 busybox.links: $(top_srcdir)/applets/busybox.mkll include/bb_config.h $(top_srcdir)/include/applets.h
 316         $(Q)-$(SHELL) $^ >$@
 317
 318 install: $(top_srcdir)/applets/install.sh busybox busybox.links
 319         $(Q)DO_INSTALL_LIBS="$(strip $(LIBBUSYBOX_SONAME) $(DO_INSTALL_LIBS))" \
 320                 $(SHELL) $< $(PREFIX) $(INSTALL_OPTS)
 321 ifeq ($(strip $(CONFIG_FEATURE_SUID)),y)
 322         @echo
 323         @echo
 324         @echo --------------------------------------------------
 325         @echo You will probably need to make your busybox binary
 326         @echo setuid root to ensure all configured applets will
 327         @echo work properly.
 328         @echo --------------------------------------------------
 329         @echo
 330 endif
 331
 332 uninstall: busybox.links
 333         rm -f $(PREFIX)/bin/busybox
 334         for i in `cat busybox.links` ; do rm -f $(PREFIX)$$i; done
 335 ifneq ($(strip $(DO_INSTALL_LIBS)),n)
 336         for i in $(LIBBUSYBOX_SONAME) $(DO_INSTALL_LIBS); do \
 337                 rm -f $(PREFIX)$$i; \
 338         done
 339 endif
 340
 341 # see if we are in verbose mode
 342 KBUILD_VERBOSE :=
 343 ifdef V
 344   ifeq ("$(origin V)", "command line")
 345     KBUILD_VERBOSE := $(V)
 346   endif
 347 endif
 348 ifneq ($(strip $(KBUILD_VERBOSE)),)
 349   CHECK_VERBOSE := -v
 350 # ARFLAGS+=v
 351 endif
 352 check test: busybox
 353         bindir=$(top_builddir) srcdir=$(top_srcdir)/testsuite \
 354         $(top_srcdir)/testsuite/runtest $(CHECK_VERBOSE)
 355
 356 .PHONY: checkhelp
 357 checkhelp:
 358         $(Q)$(top_srcdir)/scripts/checkhelp.awk \
 359                 $(wildcard $(patsubst %,%/Config.in,$(SRC_DIRS) ./))
 360 .PHONY: sizes
 361 sizes: busybox_unstripped
 362         $(NM) --size-sort $(<)
 363 .PHONY: bloatcheck
 364 bloatcheck: busybox_old busybox_unstripped
 365         @scripts/bloat-o-meter busybox_old busybox_unstripped
 366
 367 .PHONY: objsizes
 368 objsizes: busybox_unstripped
 369         $(SHELL) $(top_srcdir)/scripts/objsizes
 370
 371 # Documentation Targets
 372 doc: docs/busybox.pod docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html
 373
 374 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
 375         $(disp_doc)
 376         $(Q)-mkdir -p docs
 377         $(Q)-( cat $(top_srcdir)/docs/busybox_header.pod ; \
 378             $(top_srcdir)/docs/autodocifier.pl $(top_srcdir)/include/usage.h ; \
 379             cat $(top_srcdir)/docs/busybox_footer.pod ; ) > docs/busybox.pod
 380
 381 docs/BusyBox.txt: docs/busybox.pod
 382         $(disp_doc)
 383         $(Q)-mkdir -p docs
 384         $(Q)-pod2text $< > $@
 385
 386 docs/BusyBox.1: docs/busybox.pod
 387         $(disp_doc)
 388         $(Q)-mkdir -p docs
 389         $(Q)-pod2man --center=BusyBox --release="version $(VERSION)" \
 390                 $< > $@
 391
 392 docs/BusyBox.html: docs/busybox.net/BusyBox.html
 393         $(disp_doc)
 394         $(Q)-mkdir -p docs
 395         $(Q)-rm -f docs/BusyBox.html
 396         $(Q)-cp docs/busybox.net/BusyBox.html docs/BusyBox.html
 397
 398 docs/busybox.net/BusyBox.html: docs/busybox.pod
 399         $(Q)-mkdir -p docs/busybox.net
 400         $(Q)-pod2html --noindex $< > \
 401             docs/busybox.net/BusyBox.html
 402         $(Q)-rm -f pod2htm*
 403
 404 # The nifty new dependency stuff
 405 scripts/bb_mkdep: $(top_srcdir)/scripts/bb_mkdep.c
 406         $(do_link.h)
 407
 408 DEP_INCLUDES := include/bb_config.h
 409
 410 ifeq ($(strip $(CONFIG_BBCONFIG)),y)
 411 DEP_INCLUDES += include/bbconfigopts.h
 412
 413 include/bbconfigopts.h: .config
 414         $(disp_gen)
 415         $(Q)$(top_srcdir)/scripts/config/mkconfigs > $@
 416 endif
 417
 418 scripts/usage: $(top_srcdir)/scripts/usage.c .config
 419         $(do_link.h) -I$(top_srcdir)/include
 420
 421 DEP_INCLUDES += include/usage_compressed.h
 422 include/usage_compressed.h: .config scripts/usage
 423         $(Q)sh $(top_srcdir)/scripts/usage_compressed "$(top_srcdir)/scripts" > $@
 424
 425 depend dep: .depend
 426 .depend: scripts/bb_mkdep $(DEP_INCLUDES)
 427         $(disp_gen)
 428         $(Q)rm -f .depend
 429         $(Q)mkdir -p include/config
 430         $(Q)scripts/bb_mkdep -I $(top_srcdir)/include $(top_srcdir) > $@.tmp
 431         $(Q)mv $@.tmp $@
 432
 433 include/bb_config.h: .config
 434         @if [ ! -x $(top_builddir)/scripts/config/conf ] ; then \
 435             $(MAKE) -C scripts/config conf; \
 436         fi;
 437         @$(top_builddir)/scripts/config/conf -o $(CONFIG_CONFIG_IN)
 438
 439 clean:
 440         - $(MAKE) -C scripts/config $@
 441         - rm -f docs/busybox.dvi docs/busybox.ps \
 442             docs/busybox.pod docs/busybox.net/busybox.html \
 443             docs/busybox pod2htm* *.gdb *.elf *~ core .*config.log \
 444             docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html \
 445             docs/busybox.net/BusyBox.html busybox.links \
 446             libbusybox.so* \
 447             .config.old busybox busybox_unstripped
 448         - rm -r -f _install testsuite/links
 449         - find . -name .\*.flags -o -name \*.o  -o -name \*.om \
 450             -o -name \*.os -o -name \*.osm -o -name \*.a | xargs rm -f
 451
 452 distclean: clean
 453         - rm -f scripts/bb_mkdep
 454         - rm -r -f include/config $(DEP_INCLUDES)
 455         - find . -name .depend'*' | xargs rm -f
 456         rm -f .config .config.old .config.cmd
 457
 458 release: distclean #doc
 459         cd ..; \
 460         rm -r -f $(PROG)-$(VERSION); \
 461         cp -a busybox $(PROG)-$(VERSION); \
 462         \
 463         find $(PROG)-$(VERSION)/ -type d \
 464                 -name .svn \
 465                 -print \
 466                 -exec rm -r -f {} \; ; \
 467         \
 468         find $(PROG)-$(VERSION)/ -type f \
 469                 -name .\#* \
 470                 -print \
 471                 -exec rm -f {} \; ; \
 472         \
 473         tar -cvzf $(PROG)-$(VERSION).tar.gz $(PROG)-$(VERSION)/;
 474
 475 tags:
 476         ctags -R .
 477
 478
 479 endif # ifeq ($(skip-makefile),)
 480
 481 .PHONY: dummy subdirs release distclean clean config oldconfig \
 482         menuconfig tags check test depend dep buildtree