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 \
  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 CONFIG_DEFCONFIG = $(top_srcdir)/defconfig
  41
  42 ifeq ($(KBUILD_SRC),)
  43
  44 ifdef O
  45   ifeq ("$(origin O)", "command line")
  46     KBUILD_OUTPUT := $(O)
  47     top_builddir := $(O)
  48   endif
  49 else
  50 # If no alternate output-dir was specified, we build in cwd
  51 # We are using KBUILD_OUTPUT nevertheless to make sure that we create
  52 # Rules.mak and the toplevel Makefile, in case they don't exist.
  53   KBUILD_OUTPUT := $(top_builddir)
  54 endif
  55
  56 ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
  57 # pull in OS specific commands like cp, mkdir, etc. early
  58 -include $(top_srcdir)/Rules.mak
  59 endif
  60
  61 # All object directories.
  62 OBJ_DIRS := $(DIRS)
  63 all_tree := $(patsubst %,$(top_builddir)/%,$(OBJ_DIRS) scripts scripts/config include)
  64 all_tree: $(all_tree)
  65 $(all_tree):
  66         @mkdir -p "$@"
  67
  68 ifneq ($(KBUILD_OUTPUT),)
  69 # Invoke a second make in the output directory, passing relevant variables
  70 # Check that the output directory actually exists
  71 saved-output := $(KBUILD_OUTPUT)
  72 KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
  73 $(if $(wildcard $(KBUILD_OUTPUT)),, \
  74      $(error output directory "$(saved-output)" does not exist))
  75
  76 .PHONY: $(MAKECMDGOALS)
  77
  78 $(filter-out _all,$(MAKECMDGOALS)) _all: $(KBUILD_OUTPUT)/Rules.mak $(KBUILD_OUTPUT)/Makefile all_tree
  79         $(Q)$(MAKE) -C $(KBUILD_OUTPUT) \
  80         top_srcdir=$(top_srcdir) \
  81         top_builddir=$(top_builddir) \
  82         KBUILD_SRC=$(top_srcdir) \
  83         -f $(CURDIR)/Makefile $@
  84
  85 $(KBUILD_OUTPUT)/Rules.mak:
  86         @echo > $@
  87         @echo top_srcdir=$(top_srcdir) >> $@
  88         @echo top_builddir=$(KBUILD_OUTPUT) >> $@
  89         @echo include $(top_srcdir)/Rules.mak >> $@
  90
  91 $(KBUILD_OUTPUT)/Makefile:
  92         @echo > $@
  93         @echo top_srcdir=$(top_srcdir) >> $@
  94         @echo top_builddir=$(KBUILD_OUTPUT) >> $@
  95         @echo KBUILD_SRC='$$(top_srcdir)' >> $@
  96         @echo include '$$(KBUILD_SRC)'/Makefile >> $@
  97
  98 # Leave processing to above invocation of make
  99 skip-makefile := 1
 100 endif # ifneq ($(KBUILD_OUTPUT),)
 101 endif # ifeq ($(KBUILD_SRC),)
 102
 103 ifeq ($(skip-makefile),)
 104
 105 # We only need a copy of the Makefile for the config targets and reuse
 106 # the rest from the source directory, i.e. we do not cp ALL_MAKEFILES.
 107 scripts/config/Makefile: $(top_srcdir)/scripts/config/Makefile
 108         cp $< $@
 109
 110 _all: all
 111
 112 help:
 113         @echo 'Cleaning:'
 114         @echo '  clean                  - delete temporary files created by build'
 115         @echo '  distclean              - delete all non-source files (including .config)'
 116         @echo
 117         @echo 'Build:'
 118         @echo '  all                    - Executable and documentation'
 119         @echo '  busybox                - the swiss-army executable'
 120         @echo '  doc                    - docs/BusyBox.{txt,html,1}'
 121         @echo
 122         @echo 'Configuration:'
 123         @echo '  allnoconfig            - disable all symbols in .config'
 124         @echo '  allyesconfig           - enable all symbols in .config (see defconfig)'
 125         @echo '  allbareconfig          - enable all applets without any sub-features'
 126         @echo '  config         - text based configurator (of last resort)'
 127         @echo '  defconfig              - set .config to largest generic configuration'
 128         @echo '  menuconfig             - interactive curses-based configurator'
 129         @echo '  oldconfig              - resolve any unresolved symbols in .config'
 130         @echo
 131         @echo 'Installation:'
 132         @echo '  install                - install busybox into $prefix'
 133         @echo '  uninstall'
 134         @echo
 135         @echo 'Development:'
 136         @echo '  check                  - run the test suite for all applets'
 137         @echo '  randconfig             - generate a random configuration'
 138         @echo '  release                - create a distribution tarball'
 139         @echo '  sizes                  - show size of all enabled busybox symbols'
 140         @echo
 141
 142
 143 include $(top_srcdir)/Rules.mak
 144
 145 ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
 146
 147 # Default target if none was requested explicitly
 148 all: menuconfig
 149
 150 # warn if no configuration exists and we are asked to build a non-config target
 151 .config:
 152         @echo ""
 153         @echo "No $(top_builddir)/$@ found!"
 154         @echo "Please refer to 'make  help', section Configuration."
 155         @echo ""
 156         @exit 1
 157
 158 # configuration
 159 # ---------------------------------------------------------------------------
 160
 161 scripts/config/conf: scripts/config/Makefile
 162         $(Q)$(MAKE) -C scripts/config conf
 163         -@if [ ! -f .config ] ; then \
 164                 cp $(CONFIG_DEFCONFIG) .config; \
 165         fi
 166
 167 scripts/config/mconf: scripts/config/Makefile
 168         $(Q)$(MAKE) -C scripts/config ncurses conf mconf
 169         -@if [ ! -f .config ] ; then \
 170                 cp $(CONFIG_DEFCONFIG) .config; \
 171         fi
 172
 173 menuconfig: scripts/config/mconf
 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         echo "CONFIG_FEATURE_SHARED_BUSYBOX=y" >> .config
 189         @./scripts/config/conf -o $(CONFIG_CONFIG_IN)
 190
 191 allnoconfig: scripts/config/conf
 192         @./scripts/config/conf -n $(CONFIG_CONFIG_IN)
 193
 194 # defconfig is allyesconfig minus any features that are specialized enough
 195 # or cause enough behavior change that the user really should switch them on
 196 # manually if that's what they want.  Sort of "maximum sane config".
 197
 198 defconfig: scripts/config/conf
 199         @./scripts/config/conf -y $(CONFIG_CONFIG_IN)
 200         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)))=.*/# \1 is not set/" .config
 201         @./scripts/config/conf -o $(CONFIG_CONFIG_IN)
 202
 203
 204 allbareconfig: scripts/config/conf
 205         @./scripts/config/conf -y $(CONFIG_CONFIG_IN)
 206         @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
 207         @sed -i -e "/FEATURE/s/=.*//;/^[^#]/s/.*FEATURE.*/# \0 is not set/;" .config
 208         @echo "CONFIG_FEATURE_BUFFERS_GO_ON_STACK=y" >> .config
 209         @./scripts/config/conf -o $(CONFIG_CONFIG_IN)
 210
 211 else # ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
 212
 213 all: busybox busybox.links doc
 214
 215 # In this section, we need .config
 216 -include $(top_builddir)/.config.cmd
 217 include $(patsubst %,%/Makefile.in, $(SRC_DIRS))
 218
 219 endif # ifneq ($(strip $(HAVE_DOT_CONFIG)),y)
 220
 221 -include $(top_builddir)/.config
 222 -include $(top_builddir)/.depend
 223
 224
 225 ifeq ($(strip $(CONFIG_BUILD_AT_ONCE)),y)
 226 libraries-y:=
 227 # Which parts of the internal libs are requested?
 228 # Per default we only want what was actually selected.
 229 # -a denotes all while -y denotes the selected ones.
 230 ifeq ($(strip $(CONFIG_FEATURE_FULL_LIBBUSYBOX)),y)
 231 LIBRARY_DEFINE:=$(LIBRARY_DEFINE-a)
 232 LIBRARY_SRC   :=$(LIBRARY_SRC-a)
 233 else # CONFIG_FEATURE_FULL_LIBBUSYBOX
 234 LIBRARY_DEFINE:=$(LIBRARY_DEFINE-y)
 235 LIBRARY_SRC   :=$(LIBRARY_SRC-y)
 236 endif # CONFIG_FEATURE_FULL_LIBBUSYBOX
 237 APPLET_SRC:=$(APPLET_SRC-y)
 238 APPLETS_DEFINE:=$(APPLETS_DEFINE-y)
 239 else  # CONFIG_BUILD_AT_ONCE
 240 # no --combine, build archives out of the individual .o
 241 # This was the old way the binary was built.
 242 libbusybox-obj:=archival/libunarchive/libunarchive.a \
 243         networking/libiproute/libiproute.a \
 244         libpwdgrp/libpwdgrp.a \
 245         coreutils/libcoreutils/libcoreutils.a \
 246         libbb/libbb.a
 247 libbusybox-obj:=$(patsubst %,$(top_builddir)/%,$(libbusybox-obj))
 248
 249 ifeq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
 250 # linking against libbusybox, so don't build the .a already contained in the .so
 251 libraries-y:=$(filter-out $(libbusybox-obj),$(libraries-y))
 252 endif # CONFIG_FEATURE_SHARED_BUSYBOX
 253 endif # CONFIG_BUILD_AT_ONCE
 254
 255
 256 ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
 257 LD_LIBBUSYBOX:=libbusybox.so
 258 LIBBUSYBOX_SONAME:=$(LD_LIBBUSYBOX).$(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL_VERSION)
 259 DO_INSTALL_LIBS:=$(LD_LIBBUSYBOX) \
 260         $(LD_LIBBUSYBOX).$(MAJOR_VERSION) \
 261         $(LD_LIBBUSYBOX).$(MAJOR_VERSION).$(MINOR_VERSION)
 262
 263 ifeq ($(strip $(CONFIG_BUILD_AT_ONCE)),y)
 264 ifneq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
 265 # --combine but not linking against libbusybox, so compile all
 266 BUSYBOX_SRC   := $(LIBRARY_SRC)
 267 BUSYBOX_DEFINE:= $(LIBRARY_DEFINE)
 268 endif # !CONFIG_FEATURE_SHARED_BUSYBOX
 269 $(LIBBUSYBOX_SONAME): $(LIBRARY_SRC)
 270 else # CONFIG_BUILD_AT_ONCE
 271 $(LIBBUSYBOX_SONAME): $(libbusybox-obj)
 272 endif # CONFIG_BUILD_AT_ONCE
 273 endif # CONFIG_BUILD_LIBBUSYBOX
 274
 275 ifeq ($(strip $(CONFIG_FEATURE_SHARED_BUSYBOX)),y)
 276 LDBUSYBOX:=-L$(top_builddir) -lbusybox
 277 endif
 278
 279 ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
 280 $(LIBBUSYBOX_SONAME):
 281 ifndef MAJOR_VERSION
 282         $(error MAJOR_VERSION needed for $@ is not defined)
 283 endif
 284         $(do_link) $(LIB_CFLAGS) $(LIB_LDFLAGS) \
 285         -Wl,-soname=$(LD_LIBBUSYBOX).$(MAJOR_VERSION) \
 286         -Wl,-z,combreloc $(LIB_LDFLAGS) \
 287         -o $(@) \
 288         -Wl,--start-group -Wl,--whole-archive \
 289         $(LIBRARY_DEFINE) $(^) \
 290         -Wl,--no-whole-archive -Wl,--end-group
 291         $(RM_F) $(DO_INSTALL_LIBS)
 292         for i in $(DO_INSTALL_LIBS); do $(LN_S) -v $(@) $$i ; done
 293         $(do_strip)
 294
 295 endif # ifeq ($(strip $(CONFIG_BUILD_LIBBUSYBOX)),y)
 296
 297 busybox: .depend $(LIBBUSYBOX_SONAME) $(BUSYBOX_SRC) $(libraries-y)
 298         $(do_link) $(PROG_CFLAGS) \
 299         -o $@ -Wl,--start-group  \
 300         $(APPLETS_DEFINE) $(APPLET_SRC) \
 301         $(BUSYBOX_DEFINE) $(BUSYBOX_SRC) $(libraries-y) \
 302         $(LDBUSYBOX) $(LIBRARIES) \
 303         -Wl,--end-group
 304         $(do_strip)
 305
 306 busybox.links: $(top_srcdir)/applets/busybox.mkll include/bb_config.h $(top_srcdir)/include/applets.h
 307         $(Q)-$(SHELL) $^ >$@
 308
 309 install: $(top_srcdir)/applets/install.sh busybox busybox.links
 310         DO_INSTALL_LIBS="$(strip $(LIBBUSYBOX_SONAME) $(DO_INSTALL_LIBS))" \
 311                 $(SHELL) $< $(PREFIX) $(INSTALL_OPTS)
 312 ifeq ($(strip $(CONFIG_FEATURE_SUID)),y)
 313         @echo
 314         @echo
 315         @echo --------------------------------------------------
 316         @echo You will probably need to make your busybox binary
 317         @echo setuid root to ensure all configured applets will
 318         @echo work properly.
 319         @echo --------------------------------------------------
 320         @echo
 321 endif
 322
 323 uninstall: busybox.links
 324         $(RM_F) $(PREFIX)/bin/busybox
 325         for i in `cat busybox.links` ; do $(RM_F) $(PREFIX)$$i; done
 326 ifneq ($(strip $(DO_INSTALL_LIBS)),n)
 327         for i in $(LIBBUSYBOX_SONAME) $(DO_INSTALL_LIBS); do \
 328                 $(RM_F) $(PREFIX)$$i; \
 329         done
 330 endif
 331
 332 # see if we are in verbose mode
 333 KBUILD_VERBOSE :=
 334 ifdef V
 335   ifeq ("$(origin V)", "command line")
 336     KBUILD_VERBOSE := $(V)
 337   endif
 338 endif
 339 ifneq ($(strip $(KBUILD_VERBOSE)),)
 340   CHECK_VERBOSE := -v
 341 # ARFLAGS+=v
 342 endif
 343 check test: busybox
 344         bindir=$(top_builddir) srcdir=$(top_srcdir)/testsuite \
 345         $(top_srcdir)/testsuite/runtest $(CHECK_VERBOSE)
 346
 347 sizes:
 348         -$(RM_F) busybox
 349         $(MAKE) top_srcdir=$(top_srcdir) top_builddir=$(top_builddir) \
 350                 -f $(top_srcdir)/Makefile STRIPCMD=/bin/true
 351         $(NM) --size-sort busybox
 352
 353 # Documentation Targets
 354 doc: docs/busybox.pod docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html
 355
 356 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
 357         $(disp_doc)
 358         $(Q)-mkdir -p docs
 359         $(Q)-( cat $(top_srcdir)/docs/busybox_header.pod; \
 360             $(top_srcdir)/docs/autodocifier.pl $(top_srcdir)/include/usage.h; \
 361             cat $(top_srcdir)/docs/busybox_footer.pod ) > docs/busybox.pod
 362
 363 docs/BusyBox.txt: docs/busybox.pod
 364         $(disp_doc)
 365         $(Q)-mkdir -p docs
 366         $(Q)-pod2text $< > $@
 367
 368 docs/BusyBox.1: docs/busybox.pod
 369         $(disp_doc)
 370         $(Q)-mkdir -p docs
 371         $(Q)-pod2man --center=BusyBox --release="version $(VERSION)" \
 372                 $< > $@
 373
 374 docs/BusyBox.html: docs/busybox.net/BusyBox.html
 375         $(disp_doc)
 376         $(Q)-mkdir -p docs
 377         $(Q)-$(RM_F) docs/BusyBox.html
 378         $(Q)-cp docs/busybox.net/BusyBox.html docs/BusyBox.html
 379
 380 docs/busybox.net/BusyBox.html: docs/busybox.pod
 381         $(Q)-mkdir -p docs/busybox.net
 382         $(Q)-pod2html --noindex $< > \
 383             docs/busybox.net/BusyBox.html
 384         $(Q)-$(RM_F) pod2htm*
 385
 386 # The nifty new buildsystem stuff
 387 scripts/bb_mkdep: $(top_srcdir)/scripts/bb_mkdep.c
 388         $(HOSTCC) $(HOSTCFLAGS) -o $@ $<
 389
 390 DEP_INCLUDES := include/config.h include/bb_config.h include/_usage.h
 391
 392 ifeq ($(strip $(CONFIG_BBCONFIG)),y)
 393 DEP_INCLUDES += include/bbconfigopts.h
 394
 395 include/bbconfigopts.h: .config
 396         $(disp_gen)
 397         $(Q)$(top_srcdir)/scripts/config/mkconfigs > $@
 398 endif
 399
 400 depend dep: .depend
 401 .depend: scripts/bb_mkdep $(DEP_INCLUDES)
 402         $(disp_gen)
 403         $(Q)$(RM_F) .depend
 404         $(Q)mkdir -p include/config
 405         $(Q)scripts/bb_mkdep -c include/config.h -c include/bb_config.h \
 406                         -I $(top_srcdir)/include $(top_srcdir) > $@.tmp
 407         $(Q)mv $@.tmp $@
 408
 409 include/config.h: .config
 410         @if [ ! -x $(top_builddir)/scripts/config/conf ] ; then \
 411             $(MAKE) -C scripts/config conf; \
 412         fi;
 413         @$(top_builddir)/scripts/config/conf -o $(CONFIG_CONFIG_IN)
 414
 415 include/bb_config.h: include/config.h
 416         @echo -e "#ifndef BB_CONFIG_H\n#define BB_CONFIG_H" > $@
 417         @sed -e 's/#undef CONFIG_\(.*\)/#define ENABLE_\1 0/' \
 418             -e 's/#define CONFIG_\(.*\)/#define CONFIG_\1\n#define ENABLE_\1/' \
 419                 < $< >> $@
 420         @echo "#endif" >> $@
 421
 422 # Create macros for usage.h, e.g.:
 423 #if ENABLE_HAVE_DOT_CONFIG
 424 #define USAGE_HAVE_DOT_CONFIG(a) a
 425 #else
 426 #define USAGE_HAVE_DOT_CONFIG(a)
 427 #endif
 428 include/_usage.h: .config
 429         $(disp_gen)
 430         $(Q)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");}}' $(<) > $(@)
 431
 432 clean:
 433         - $(MAKE) -C scripts/config $@
 434         - $(RM_F) docs/busybox.dvi docs/busybox.ps \
 435             docs/busybox.pod docs/busybox.net/busybox.html \
 436             docs/busybox pod2htm* *.gdb *.elf *~ core .*config.log \
 437             docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html \
 438             docs/busybox.net/BusyBox.html busybox.links \
 439             $(DO_INSTALL_LIBS) $(LIBBUSYBOX_SONAME) \
 440             .config.old busybox
 441         - rm -rf _install testsuite/links
 442         - find . -name .\*.flags -exec $(RM_F) {} \;
 443         - find . -name \*.o -exec $(RM_F) {} \;
 444         - find . -name \*.a -exec $(RM_F) {} \;
 445         - find . -name \*.so -exec $(RM_F) {} \;
 446
 447 distclean: clean
 448         - $(RM_F) scripts/bb_mkdep
 449         - rm -rf include/config $(DEP_INCLUDES)
 450         - find . -name .depend -exec $(RM_F) {} \;
 451         $(RM_F) .config .config.old .config.cmd
 452
 453 release: distclean #doc
 454         cd ..; \
 455         rm -rf $(PROG)-$(VERSION); \
 456         cp -a busybox $(PROG)-$(VERSION); \
 457         \
 458         find $(PROG)-$(VERSION)/ -type d \
 459                 -name .svn \
 460                 -print \
 461                 -exec rm -rf {} \; ; \
 462         \
 463         find $(PROG)-$(VERSION)/ -type f \
 464                 -name .\#* \
 465                 -print \
 466                 -exec $(RM_F) {} \; ; \
 467         \
 468         tar -cvzf $(PROG)-$(VERSION).tar.gz $(PROG)-$(VERSION)/;
 469
 470 tags:
 471         ctags -R .
 472
 473
 474 endif # ifeq ($(skip-makefile),)
 475
 476 .PHONY: dummy subdirs release distclean clean config oldconfig \
 477         menuconfig tags check test depend dep buildtree