Makefile

   1 # Makefile for buildroot2
   2 #
   3 # Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org>
   4 #
   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.
   9 #
  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.
  14 #
  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
  18 #
  19
  20 #--------------------------------------------------------------
  21 # Just run 'make menuconfig', configure stuff, then run 'make'.
  22 # You shouldn't need to mess with anything beyond this point...
  23 #--------------------------------------------------------------
  24 TOPDIR=./
  25 CONFIG_CONFIG_IN=Config.in
  26 CONFIG_DEFCONFIG=.defconfig
  27 CONFIG=package/config
  28 DATE:=$(shell date -u +%Y%m%d)
  29
  30 noconfig_targets:=menuconfig config oldconfig randconfig \
  31         defconfig allyesconfig allnoconfig release tags \
  32         silentoldconfig source-check help
  33
  34 # $(shell find . -name *_defconfig |sed 's/.*\///')
  35
  36 # Pull in the user's configuration file
  37 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
  38 ifeq ($(BOARD),)
  39 -include $(TOPDIR).config
  40 else
  41 -include $(TOPDIR)/local/$(BOARD)/$(BOARD).config
  42 endif
  43 endif
  44
  45 ifneq ($(BUILDROOT_DL_DIR),)
  46 BR2_DL_DIR:=$(BUILDROOT_DL_DIR)
  47 endif
  48 ifneq ($(BUILDROOT_LOCAL),)
  49 LOCAL:=$(BUILDROOT_LOCAL)
  50 else
  51 LOCAL:=local
  52 endif
  53
  54 # To put more focus on warnings, be less verbose as default
  55 # Use 'make V=1' to see the full commands
  56 ifdef V
  57   ifeq ("$(origin V)", "command line")
  58     KBUILD_VERBOSE=$(V)
  59   endif
  60 endif
  61 ifndef KBUILD_VERBOSE
  62   KBUILD_VERBOSE=0
  63 endif
  64
  65 ifeq ($(KBUILD_VERBOSE),1)
  66   quiet=
  67   Q=
  68 ifndef VERBOSE
  69   VERBOSE=1
  70 endif
  71 else
  72   quiet=quiet_
  73   Q=@
  74 endif
  75
  76 CONFIG_SHELL:=$(shell if [ -x "$$BASH" ]; then echo $$BASH; \
  77         else if [ -x /bin/bash ]; then echo /bin/bash; \
  78         else echo sh; fi; fi)
  79
  80 export CONFIG_SHELL quiet Q KBUILD_VERBOSE VERBOSE
  81
  82 ifndef HOSTAR
  83 HOSTAR:=ar
  84 endif
  85 ifndef HOSTAS
  86 HOSTAS:=as
  87 endif
  88 ifndef HOSTCC
  89 HOSTCC:=gcc
  90 else
  91 endif
  92 ifndef HOSTCXX
  93 HOSTCXX:=g++
  94 endif
  95 ifndef HOSTFC
  96 HOSTFC:=gfortran
  97 endif
  98 ifndef HOSTCPP
  99 HOSTCPP:=cpp
 100 endif
 101 ifndef HOSTLD
 102 HOSTLD:=ld
 103 endif
 104 ifndef HOSTLN
 105 HOSTLN:=ln
 106 endif
 107 ifndef HOSTNM
 108 HOSTNM:=nm
 109 endif
 110 HOSTAR:=$(shell $(CONFIG_SHELL) -c "which $(HOSTAR)" || type -p $(HOSTAR) || echo ar)
 111 HOSTAS:=$(shell $(CONFIG_SHELL) -c "which $(HOSTAS)" || type -p $(HOSTAS) || echo as)
 112 HOSTCC:=$(shell $(CONFIG_SHELL) -c "which $(HOSTCC)" || type -p $(HOSTCC) || echo gcc)
 113 HOSTCXX:=$(shell $(CONFIG_SHELL) -c "which $(HOSTCXX)" || type -p $(HOSTCXX) || echo g++)
 114 HOSTFC:=$(shell $(CONFIG_SHELL) -c "which $(HOSTFC)" || type -p $(HOSTFC) || echo || which g77 || type -p g77 || echo gfortran)
 115 HOSTCPP:=$(shell $(CONFIG_SHELL) -c "which $(HOSTCPP)" || type -p $(HOSTCPP) || echo cpp)
 116 HOSTLD:=$(shell $(CONFIG_SHELL) -c "which $(HOSTLD)" || type -p $(HOSTLD) || echo ld)
 117 HOSTLN:=$(shell $(CONFIG_SHELL) -c "which $(HOSTLN)" || type -p $(HOSTLN) || echo ln)
 118 HOSTNM:=$(shell $(CONFIG_SHELL) -c "which $(HOSTNM)" || type -p $(HOSTNM) || echo nm)
 119 ifndef CFLAGS_FOR_BUILD
 120 CFLAGS_FOR_BUILD:=-g -O2
 121 endif
 122 ifndef CXXFLAGS_FOR_BUILD
 123 CXXFLAGS_FOR_BUILD:=-g -O2
 124 endif
 125 ifndef FCFLAGS_FOR_BUILD
 126 FCFLAGS_FOR_BUILD:=-g -O2
 127 endif
 128 export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTFC HOSTLD
 129
 130
 131 ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 132
 133 # cc-option
 134 # Usage: cflags-y+=$(call cc-option, -march=winchip-c6, -march=i586)
 135 # sets -march=winchip-c6 if supported else falls back to -march=i586
 136 # without checking the latter.
 137 cc-option=$(shell if $(TARGET_CC) $(TARGET_CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
 138         > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
 139
 140 #############################################################
 141 #
 142 # Hide troublesome environment variables from sub processes
 143 #
 144 #############################################################
 145 unexport CROSS_COMPILE
 146 unexport ARCH
 147
 148 #############################################################
 149 #
 150 # Setup the proper filename extensions for the host
 151 #
 152 ##############################################################
 153 ifneq ($(findstring linux,$(BR2_GNU_BUILD_SUFFIX)),)
 154 HOST_EXEEXT:=
 155 HOST_LIBEXT:=.a
 156 HOST_SHREXT:=.so
 157 endif
 158 ifneq ($(findstring apple,$(BR2_GNU_BUILD_SUFFIX)),)
 159 HOST_EXEEXT:=
 160 HOST_LIBEXT:=.a
 161 HOST_SHREXT:=.dylib
 162 endif
 163 ifneq ($(findstring cygwin,$(BR2_GNU_BUILD_SUFFIX)),)
 164 HOST_EXEEXT:=.exe
 165 HOST_LIBEXT:=.lib
 166 HOST_SHREXT:=.dll
 167 HOST_LOADLIBES="-lcurses -lintl"
 168 export HOST_LOADLIBES
 169 endif
 170 ifneq ($(findstring mingw,$(BR2_GNU_BUILD_SUFFIX)),)
 171 HOST_EXEEXT:=.exe
 172 HOST_LIBEXT:=.lib
 173 HOST_SHREXT:=.dll
 174 endif
 175
 176 # The preferred type of libs we build for the target
 177 ifeq ($(BR2_PREFER_STATIC_LIB),y)
 178 LIBTGTEXT=.a
 179 #PREFERRED_LIB_FLAGS:=--disable-shared --enable-static
 180 else
 181 LIBTGTEXT=.so
 182 #PREFERRED_LIB_FLAGS:=--disable-static --enable-shared
 183 endif
 184 PREFERRED_LIB_FLAGS:=--enable-static --enable-shared
 185
 186 BR2_LIBC_NAME:=$(strip ",,$(BR2_LIBC_NAME))
 187 #")
 188
 189 ##############################################################
 190 #
 191 # The list of stuff to build for the target toolchain
 192 # along with the packages to build for the target.
 193 #
 194 ##############################################################
 195 ifeq ($(BR2_TOOLCHAIN_SOURCE),y)
 196 BASE_TARGETS:=libc-configured binutils cross_compiler libc_target
 197 else
 198 BASE_TARGETS:=libc
 199 endif
 200 TARGETS:=
 201
 202 # setup our paths
 203 include project/Makefile.in
 204
 205 BR2_DEPENDS_DIR=$(PROJECT_BUILD_DIR)/buildroot-config
 206
 207 include toolchain/Makefile.in
 208 include package/Makefile.in
 209
 210 #############################################################
 211 #
 212 # You should probably leave this stuff alone unless you know
 213 # what you are doing.
 214 #
 215 #############################################################
 216
 217 all: world
 218
 219 # In this section, we need .config
 220 include .config.cmd
 221
 222 include project/*.mk
 223
 224 # We also need the various per-package makefiles, which also add
 225 # each selected package to TARGETS if that package was selected
 226 # in the .config file.
 227 ifeq ($(BR2_TOOLCHAIN_SOURCE),y)
 228 # avoid pulling in external toolchain which is broken for toplvl parallel builds
 229 # Explicit ordering:
 230 include toolchain/dependencies/dependencies.mk
 231 include toolchain/binutils/binutils.mk
 232 include toolchain/ccache/ccache.mk
 233 include toolchain/elf2flt/elf2flt.mk
 234 ifeq ($(BR2_LIBC_FLAVOUR_uclibc),y)
 235 include toolchain/gcc/gcc-uclibc-3.x.mk
 236 include toolchain/gcc/gcc-uclibc-4.x.mk
 237 else
 238 include toolchain/gcc/gcc-$(BR2_LIBC_NAME).mk
 239 endif
 240 include toolchain/gdb/gdb.mk
 241 include toolchain/kernel-headers/kernel-headers.mk
 242 include toolchain/mklibs/mklibs.mk
 243 include toolchain/sstrip/sstrip.mk
 244 ifeq ($(BR2_LIBC_FLAVOUR_uclibc),y)
 245 include toolchain/uClibc/uclibc.mk
 246 else
 247 include toolchain/$(BR2_LIBC_NAME)/$(BR2_LIBC_NAME).mk
 248 endif
 249 else
 250 include toolchain/*/*.mk
 251 endif
 252
 253 ifeq ($(BR2_PACKAGE_LINUX),y)
 254 TARGETS+=linux26-modules
 255 endif
 256
 257 include package/*/*.mk
 258
 259 # target stuff is last so it can override anything else
 260 include target/Makefile.in
 261
 262 TARGETS+=erase-fakeroots
 263
 264 TARGETS_CLEAN:=$(patsubst %,%-clean,$(TARGETS))
 265 TARGETS_SOURCE:=$(patsubst %,%-source,$(TARGETS) $(BASE_TARGETS))
 266 TARGETS_DIRCLEAN:=$(patsubst %,%-dirclean,$(TARGETS))
 267 TARGETS_ALL:=$(patsubst %,__real_tgt_%,$(TARGETS))
 268 # all targets depend on the crosscompiler and it's prerequisites
 269 $(TARGETS_ALL): __real_tgt_%: $(BASE_TARGETS) % libtool_cluebait
 270
 271 $(BR2_DEPENDS_DIR): .config
 272         rm -rf $(BR2_DEPENDS_DIR)
 273         $(INSTALL) -d $(@D)
 274         cp -dpRf $(CONFIG)/buildroot-config $(BR2_DEPENDS_DIR)
 275         touch $@/.done
 276
 277 dirs: $(DL_DIR) $(TOOL_BUILD_DIR) $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 278         $(BR2_DEPENDS_DIR) \
 279         $(BINARIES_DIR) $(PROJECT_BUILD_DIR)
 280
 281 $(BASE_TARGETS): | dirs
 282
 283 world: $(dependencies) dirs target-host-info $(BASE_TARGETS) $(TARGETS_ALL)
 284
 285
 286 .PHONY: all world dirs clean dirclean distclean source \
 287         $(BASE_TARGETS) $(TARGETS) $(TARGETS_ALL) \
 288         $(TARGETS_CLEAN) $(TARGETS_DIRCLEAN) $(TARGETS_SOURCE) \
 289         $(DL_DIR) $(TOOL_BUILD_DIR) $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 290         $(BR2_DEPENDS_DIR) \
 291         $(BINARIES_DIR) $(PROJECT_BUILD_DIR) libtool_cluebait
 292
 293 # libtool currently does not play nice with cross-compiling
 294 libtool_cluebait:
 295         $(Q)find $(STAGING_DIR)/lib* -name "*.la" -exec rm -f {} \;
 296         $(Q)find $(STAGING_DIR)/usr/lib* -name "*.la" -exec rm -f {} \;
 297
 298 #############################################################
 299 #
 300 # staging and target directories do NOT list these as
 301 # dependencies anywhere else
 302 #
 303 #############################################################
 304 $(DL_DIR) $(TOOL_BUILD_DIR) $(BUILD_DIR) \
 305         $(PROJECT_BUILD_DIR) $(BINARIES_DIR):
 306         @mkdir -p $@
 307
 308 $(STAGING_DIR):
 309         @mkdir -p $(STAGING_DIR)/bin
 310         @mkdir -p $(STAGING_DIR)/lib
 311 ifeq ($(BR2_TOOLCHAIN_SYSROOT),y)
 312         @mkdir -p $(STAGING_DIR)/usr/lib
 313 else
 314         @if test ! -L $(STAGING_DIR)/usr && test -d $(STAGING_DIR)/usr; then \
 315           echo "You seem to be coming from a toolchain with sysroot support."; \
 316           echo "Reconfiguring without wiping your rootfs will not work, sorry.";\
 317           echo "Please 'rm -rf $(STAGING_DIR)'"; \
 318           echo "Then run 'make' again."; \
 319           echo ""; \
 320           exit 1; \
 321         fi
 322         ln -snf . $(STAGING_DIR)/usr
 323         @mkdir -p $(STAGING_DIR)/usr/$(REAL_GNU_TARGET_NAME)
 324         ln -snf ../lib $(STAGING_DIR)/usr/lib
 325         ln -snf ../lib $(STAGING_DIR)/usr/$(REAL_GNU_TARGET_NAME)/lib
 326 endif
 327         @mkdir -p $(STAGING_DIR)/usr/include
 328
 329 $(PROJECT_BUILD_DIR)/.root:
 330         mkdir -p $(TARGET_DIR)
 331         if ! [ -d "$(TARGET_DIR)/bin" ]; then \
 332                 if [ -d "$(TARGET_SKELETON)" ]; then \
 333                         cp -fa $(TARGET_SKELETON)/* $(TARGET_DIR)/; \
 334                 fi; \
 335                 touch $(STAGING_DIR)/.fakeroot.00000; \
 336         fi
 337         -find $(TARGET_DIR) -type d -name CVS | xargs rm -rf
 338         -find $(TARGET_DIR) -type d -name .svn | xargs rm -rf
 339         -find $(TARGET_DIR) -type d -name .gitignore | xargs rm -rf
 340         touch $@
 341
 342 $(TARGET_DIR): $(PROJECT_BUILD_DIR)/.root
 343
 344 erase-fakeroots:
 345         rm -f $(PROJECT_BUILD_DIR)/.fakeroot*
 346
 347 source: $(TARGETS_SOURCE) $(HOST_SOURCE)
 348
 349 _source-check:
 350         $(MAKE) SPIDER=--spider source
 351
 352 #############################################################
 353 #
 354 # Cleanup and misc junk
 355 #
 356 #############################################################
 357 clean: $(TARGETS_CLEAN)
 358         rm -rf $(STAGING_DIR) $(TARGET_DIR) $(IMAGE) \
 359                 $(BR2_UCLIBC_CONFIG_FOR_BUILDROOT) $(dependencies) \
 360                 $(PROJECT_BUILD_DIR)/.root $(PROJECT_BUILD_DIR)/autotools-stamps
 361
 362 dirclean: $(TARGETS_DIRCLEAN) clean
 363
 364 distclean:
 365 ifeq ($(DL_DIR),$(BASE_DIR)/dl)
 366         rm -rf $(DL_DIR)
 367 endif
 368         rm -rf $(BUILD_DIR) $(PROJECT_BUILD_DIR) $(BINARIES_DIR) \
 369         $(LINUX_KERNEL) $(IMAGE) $(BASE_DIR)/include \
 370                 .config* .auto.deps $(dependencies) \
 371                 $(BR2_UCLIBC_CONFIG_FOR_BUILDROOT)
 372         $(MAKE) -C $(CONFIG) clean distclean
 373
 374 sourceball:
 375         rm -rf $(BUILD_DIR) $(PROJECT_BUILD_DIR) $(BINARIES_DIR)
 376         set -e; \
 377         cd ..; \
 378         rm -f buildroot.tar.bz2; \
 379         tar -cvf buildroot.tar buildroot; \
 380         bzip2 -9 buildroot.tar; \
 381
 382
 383 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 384
 385 all: menuconfig
 386
 387 # configuration
 388 # ---------------------------------------------------------------------------
 389
 390 HOSTCFLAGS=$(CFLAGS_FOR_BUILD)
 391 export HOSTCFLAGS
 392
 393 $(CONFIG)/conf:
 394         @mkdir -p $(CONFIG)/buildroot-config
 395         $(MAKE) CC="$(HOSTCC)" -C $(CONFIG) conf
 396         -@if [ ! -f .config ]; then \
 397                 cp $(CONFIG_DEFCONFIG) .config; \
 398         fi
 399 $(CONFIG)/mconf:
 400         @mkdir -p $(CONFIG)/buildroot-config
 401         $(MAKE) CC="$(HOSTCC)" -C $(CONFIG) conf mconf
 402         -@if [ ! -f .config ]; then \
 403                 cp $(CONFIG_DEFCONFIG) .config; \
 404         fi
 405
 406 menuconfig: $(CONFIG)/mconf
 407         @mkdir -p $(CONFIG)/buildroot-config
 408         @if ! KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 409                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 410                 $(CONFIG)/mconf $(CONFIG_CONFIG_IN); then \
 411                 test -f .config.cmd || rm -f .config; \
 412         fi
 413
 414 config: $(CONFIG)/conf
 415         @mkdir -p $(CONFIG)/buildroot-config
 416         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 417                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 418                 $(CONFIG)/conf $(CONFIG_CONFIG_IN)
 419
 420 oldconfig: $(CONFIG)/conf
 421         @mkdir -p $(CONFIG)/buildroot-config
 422         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 423                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 424                 $(CONFIG)/conf -o $(CONFIG_CONFIG_IN)
 425
 426 silentoldconfig: $(CONFIG)/conf
 427         @mkdir -p $(CONFIG)/buildroot-config
 428         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 429                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 430                 $(CONFIG)/conf -s $(CONFIG_CONFIG_IN)
 431
 432 randconfig: $(CONFIG)/conf
 433         @mkdir -p $(CONFIG)/buildroot-config
 434         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 435                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 436                 $(CONFIG)/conf -r $(CONFIG_CONFIG_IN)
 437
 438 allyesconfig: $(CONFIG)/conf
 439         cat $(CONFIG_DEFCONFIG) > .config
 440         @mkdir -p $(CONFIG)/buildroot-config
 441         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 442                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 443                 $(CONFIG)/conf -y $(CONFIG_CONFIG_IN)
 444         #sed -i -e "s/^CONFIG_DEBUG.*/# CONFIG_DEBUG is not set/" .config
 445
 446 allnoconfig: $(CONFIG)/conf
 447         @mkdir -p $(CONFIG)/buildroot-config
 448         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 449                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 450                 $(CONFIG)/conf -n $(CONFIG_CONFIG_IN)
 451
 452 defconfig: $(CONFIG)/conf
 453         @mkdir -p $(CONFIG)/buildroot-config
 454         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 455                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 456                 $(CONFIG)/conf -d $(CONFIG_CONFIG_IN)
 457
 458 # check if download URLs are outdated
 459 source-check: allyesconfig
 460         $(MAKE) _source-check
 461
 462 #############################################################
 463 #
 464 # Cleanup and misc junk
 465 #
 466 #############################################################
 467 clean:
 468         rm -f .config .config.old .config.cmd .tmpconfig.h
 469         -$(MAKE) -C $(CONFIG) clean
 470
 471 distclean: clean
 472         rm -rf sources/*
 473
 474 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 475
 476 %_defconfig: $(CONFIG)/conf
 477         cp $(shell find ./target/ -name $@) .config
 478         -@$(MAKE) oldconfig
 479
 480 configured: dirs host-sed kernel-headers libc-config busybox-config linux26-config
 481
 482 cross: $(BASE_TARGETS)
 483
 484 help:
 485         @echo 'Cleaning:'
 486         @echo '  clean                  - delete temporary files created by build'
 487         @echo '  distclean              - delete all non-source files (including .config)'
 488         @echo
 489         @echo 'Build:'
 490         @echo '  all                    - make world'
 491         @echo
 492         @echo 'Configuration:'
 493         @echo '  menuconfig             - interactive curses-based configurator'
 494         @echo '  oldconfig              - resolve any unresolved symbols in .config'
 495         @echo '  silentoldconfig        - silently resolve any unresolved symbols in .config'
 496         @echo
 497         @echo 'Miscellaneous:'
 498         @echo '  source                 - download all sources needed for offline-build'
 499         @echo '  source-check           - check all packages for valid download URLs'
 500         @echo
 501         @echo 'See docs/README and docs/buildroot.html for further details'
 502         @echo
 503
 504 .PHONY: dummy subdirs release distclean clean config oldconfig \
 505         menuconfig tags check test depend defconfig help
 506