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 HOSTGCJ
  96 HOSTGCJ:=gcj
  97 endif
  98 ifndef HOSTFC
  99 HOSTFC:=gfortran
 100 endif
 101 ifndef HOSTCPP
 102 HOSTCPP:=cpp
 103 endif
 104 ifndef HOSTLD
 105 HOSTLD:=ld
 106 endif
 107 ifndef HOSTLN
 108 HOSTLN:=ln
 109 endif
 110 ifndef HOSTNM
 111 HOSTNM:=nm
 112 endif
 113 HOSTAR:=$(shell $(CONFIG_SHELL) -c "which $(HOSTAR)" || type -p $(HOSTAR) || echo ar)
 114 HOSTAS:=$(shell $(CONFIG_SHELL) -c "which $(HOSTAS)" || type -p $(HOSTAS) || echo as)
 115 HOSTCC:=$(shell $(CONFIG_SHELL) -c "which $(HOSTCC)" || type -p $(HOSTCC) || echo gcc)
 116 HOSTCXX:=$(shell $(CONFIG_SHELL) -c "which $(HOSTCXX)" || type -p $(HOSTCXX) || echo g++)
 117 HOSTGCJ:=$(shell $(CONFIG_SHELL) -c "which $(HOSTGCJ)" || type -p $(HOSTGCJ) || echo gcj)
 118 HOSTFC:=$(shell $(CONFIG_SHELL) -c "which $(HOSTFC)" || type -p $(HOSTFC) || echo || which g77 || type -p g77 || echo gfortran)
 119 HOSTCPP:=$(shell $(CONFIG_SHELL) -c "which $(HOSTCPP)" || type -p $(HOSTCPP) || echo cpp)
 120 HOSTLD:=$(shell $(CONFIG_SHELL) -c "which $(HOSTLD)" || type -p $(HOSTLD) || echo ld)
 121 HOSTLN:=$(shell $(CONFIG_SHELL) -c "which $(HOSTLN)" || type -p $(HOSTLN) || echo ln)
 122 HOSTNM:=$(shell $(CONFIG_SHELL) -c "which $(HOSTNM)" || type -p $(HOSTNM) || echo nm)
 123 ifndef CFLAGS_FOR_BUILD
 124 CFLAGS_FOR_BUILD:=-g -O2
 125 endif
 126 ifndef CXXFLAGS_FOR_BUILD
 127 CXXFLAGS_FOR_BUILD:=-g -O2
 128 endif
 129 ifndef FCFLAGS_FOR_BUILD
 130 FCFLAGS_FOR_BUILD:=-g -O2
 131 endif
 132 export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTGCJ HOSTFC HOSTLD
 133
 134
 135 ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 136
 137 # cc-option
 138 # Usage: cflags-y+=$(call cc-option, -march=winchip-c6, -march=i586)
 139 # sets -march=winchip-c6 if supported else falls back to -march=i586
 140 # without checking the latter.
 141 cc-option=$(shell if $(TARGET_CC) $(TARGET_CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
 142         > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
 143
 144 #############################################################
 145 #
 146 # Hide troublesome environment variables from sub processes
 147 #
 148 #############################################################
 149 unexport CROSS_COMPILE
 150 unexport ARCH
 151
 152 #############################################################
 153 #
 154 # Setup the proper filename extensions for the host
 155 #
 156 ##############################################################
 157 ifneq ($(findstring linux,$(BR2_GNU_BUILD_SUFFIX)),)
 158 HOST_EXEEXT:=
 159 HOST_LIBEXT:=.a
 160 HOST_SHREXT:=.so
 161 endif
 162 ifneq ($(findstring apple,$(BR2_GNU_BUILD_SUFFIX)),)
 163 HOST_EXEEXT:=
 164 HOST_LIBEXT:=.a
 165 HOST_SHREXT:=.dylib
 166 endif
 167 ifneq ($(findstring cygwin,$(BR2_GNU_BUILD_SUFFIX)),)
 168 HOST_EXEEXT:=.exe
 169 HOST_LIBEXT:=.lib
 170 HOST_SHREXT:=.dll
 171 HOST_LOADLIBES="-lcurses -lintl"
 172 export HOST_LOADLIBES
 173 endif
 174 ifneq ($(findstring mingw,$(BR2_GNU_BUILD_SUFFIX)),)
 175 HOST_EXEEXT:=.exe
 176 HOST_LIBEXT:=.lib
 177 HOST_SHREXT:=.dll
 178 endif
 179
 180 # The preferred type of libs we build for the target
 181 ifeq ($(BR2_PREFER_STATIC_LIB),y)
 182 LIBTGTEXT=.a
 183 #PREFERRED_LIB_FLAGS:=--disable-shared --enable-static
 184 else
 185 LIBTGTEXT=.so
 186 #PREFERRED_LIB_FLAGS:=--disable-static --enable-shared
 187 endif
 188 PREFERRED_LIB_FLAGS:=--enable-static --enable-shared
 189
 190 BR2_LIBC_NAME:=$(strip ",,$(BR2_LIBC_NAME))
 191 #")
 192
 193 ##############################################################
 194 #
 195 # The list of stuff to build for the target toolchain
 196 # along with the packages to build for the target.
 197 #
 198 ##############################################################
 199 ifeq ($(BR2_TOOLCHAIN_SOURCE),y)
 200 BASE_TARGETS:=libc-configured binutils cross_compiler libc_target
 201 else
 202 BASE_TARGETS:=libc
 203 endif
 204 TARGETS:=
 205
 206 # setup our paths
 207 include project/Makefile.in
 208
 209 BR2_DEPENDS_DIR=$(PROJECT_BUILD_DIR)/buildroot-config
 210
 211 include toolchain/Makefile.in
 212 include package/Makefile.in
 213
 214 #############################################################
 215 #
 216 # You should probably leave this stuff alone unless you know
 217 # what you are doing.
 218 #
 219 #############################################################
 220
 221 all: world
 222
 223 # In this section, we need .config
 224 include .config.cmd
 225
 226 include project/*.mk
 227
 228 # We also need the various per-package makefiles, which also add
 229 # each selected package to TARGETS if that package was selected
 230 # in the .config file.
 231 ifeq ($(BR2_TOOLCHAIN_SOURCE),y)
 232 # avoid pulling in external toolchain which is broken for toplvl parallel builds
 233 # Explicit ordering:
 234 include toolchain/dependencies/dependencies.mk
 235 include toolchain/binutils/binutils.mk
 236 include toolchain/ccache/ccache.mk
 237 include toolchain/elf2flt/elf2flt.mk
 238 ifeq ($(BR2_LIBC_FLAVOUR_uclibc),y)
 239 include toolchain/gcc/gcc-uclibc-3.x.mk
 240 include toolchain/gcc/gcc-uclibc-4.x.mk
 241 else
 242 include toolchain/gcc/gcc-$(BR2_LIBC_NAME).mk
 243 endif
 244 include toolchain/gdb/gdb.mk
 245 include toolchain/kernel-headers/kernel-headers.mk
 246 include toolchain/mklibs/mklibs.mk
 247 include toolchain/sstrip/sstrip.mk
 248 ifeq ($(BR2_LIBC_FLAVOUR_uclibc),y)
 249 include toolchain/uClibc/uclibc.mk
 250 else
 251 include toolchain/$(BR2_LIBC_NAME)/$(BR2_LIBC_NAME).mk
 252 endif
 253 else
 254 include toolchain/*/*.mk
 255 endif
 256
 257 ifeq ($(BR2_PACKAGE_LINUX),y)
 258 TARGETS+=linux26-modules
 259 endif
 260
 261 include package/*/*.mk
 262
 263 # target stuff is last so it can override anything else
 264 include target/Makefile.in
 265
 266 TARGETS+=erase-fakeroots
 267
 268 TARGETS_CLEAN:=$(patsubst %,%-clean,$(TARGETS))
 269 TARGETS_SOURCE:=$(patsubst %,%-source,$(TARGETS) $(BASE_TARGETS))
 270 TARGETS_DIRCLEAN:=$(patsubst %,%-dirclean,$(TARGETS))
 271 TARGETS_ALL:=$(patsubst %,__real_tgt_%,$(TARGETS))
 272 # all targets depend on the crosscompiler and it's prerequisites
 273 $(TARGETS_ALL): __real_tgt_%: $(BASE_TARGETS) % libtool_cluebait
 274
 275 $(BR2_DEPENDS_DIR): .config
 276         rm -rf $(BR2_DEPENDS_DIR)
 277         $(INSTALL) -d $(@D)
 278         cp -dpRf $(CONFIG)/buildroot-config $(BR2_DEPENDS_DIR)
 279         touch $@/.done
 280
 281 dirs: $(DL_DIR) $(TOOL_BUILD_DIR) $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 282         $(BR2_DEPENDS_DIR) \
 283         $(BINARIES_DIR) $(PROJECT_BUILD_DIR)
 284
 285 $(BASE_TARGETS): | dirs
 286
 287 world: $(dependencies) dirs target-host-info $(BASE_TARGETS) $(TARGETS_ALL)
 288
 289
 290 .PHONY: all world dirs clean dirclean distclean source \
 291         $(BASE_TARGETS) $(TARGETS) $(TARGETS_ALL) \
 292         $(TARGETS_CLEAN) $(TARGETS_DIRCLEAN) $(TARGETS_SOURCE) \
 293         $(DL_DIR) $(TOOL_BUILD_DIR) $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 294         $(BR2_DEPENDS_DIR) \
 295         $(BINARIES_DIR) $(PROJECT_BUILD_DIR) libtool_cluebait
 296
 297 # libtool currently does not play nice with cross-compiling
 298 libtool_cluebait:
 299         $(Q)find $(STAGING_DIR)/lib* -name "*.la" -exec rm -f {} \;
 300         $(Q)find $(STAGING_DIR)/usr/lib* -name "*.la" -exec rm -f {} \;
 301
 302 #############################################################
 303 #
 304 # staging and target directories do NOT list these as
 305 # dependencies anywhere else
 306 #
 307 #############################################################
 308 $(DL_DIR) $(TOOL_BUILD_DIR) $(BUILD_DIR) \
 309         $(PROJECT_BUILD_DIR) $(BINARIES_DIR):
 310         @mkdir -p $@
 311
 312 $(STAGING_DIR):
 313         @mkdir -p $(STAGING_DIR)/bin
 314         @mkdir -p $(STAGING_DIR)/lib
 315 ifeq ($(BR2_TOOLCHAIN_SYSROOT),y)
 316         @mkdir -p $(STAGING_DIR)/usr/lib
 317 else
 318         @if test ! -L $(STAGING_DIR)/usr && test -d $(STAGING_DIR)/usr; then \
 319           echo "You seem to be coming from a toolchain with sysroot support."; \
 320           echo "Reconfiguring without wiping your rootfs will not work, sorry.";\
 321           echo "Please 'rm -rf $(STAGING_DIR)'"; \
 322           echo "Then run 'make' again."; \
 323           echo ""; \
 324           exit 1; \
 325         fi
 326         ln -snf . $(STAGING_DIR)/usr
 327         @mkdir -p $(STAGING_DIR)/usr/$(REAL_GNU_TARGET_NAME)
 328         ln -snf ../lib $(STAGING_DIR)/usr/lib
 329         ln -snf ../lib $(STAGING_DIR)/usr/$(REAL_GNU_TARGET_NAME)/lib
 330 endif
 331         @mkdir -p $(STAGING_DIR)/usr/include
 332
 333 $(PROJECT_BUILD_DIR)/.root:
 334         mkdir -p $(TARGET_DIR)
 335         if ! [ -d "$(TARGET_DIR)/bin" ]; then \
 336                 if [ -d "$(TARGET_SKELETON)" ]; then \
 337                         cp -fa $(TARGET_SKELETON)/* $(TARGET_DIR)/; \
 338                 fi; \
 339                 touch $(STAGING_DIR)/.fakeroot.00000; \
 340         fi
 341         -find $(TARGET_DIR) -type d -name CVS | xargs rm -rf
 342         -find $(TARGET_DIR) -type d -name .svn | xargs rm -rf
 343         -find $(TARGET_DIR) -type f -name .gitignore | xargs rm -rf
 344         touch $@
 345
 346 $(TARGET_DIR): $(PROJECT_BUILD_DIR)/.root
 347
 348 erase-fakeroots:
 349         rm -f $(PROJECT_BUILD_DIR)/.fakeroot*
 350
 351 source: $(TARGETS_SOURCE) $(HOST_SOURCE)
 352
 353 _source-check:
 354         $(MAKE) SPIDER=--spider source
 355
 356 #############################################################
 357 #
 358 # Cleanup and misc junk
 359 #
 360 #############################################################
 361 clean: $(TARGETS_CLEAN)
 362         rm -rf $(STAGING_DIR) $(TARGET_DIR) $(IMAGE) \
 363                 $(BR2_UCLIBC_CONFIG_FOR_BUILDROOT) $(dependencies) \
 364                 $(PROJECT_BUILD_DIR)/.root $(PROJECT_BUILD_DIR)/autotools-stamps
 365
 366 dirclean: $(TARGETS_DIRCLEAN) clean
 367
 368 distclean:
 369 ifeq ($(DL_DIR),$(BASE_DIR)/dl)
 370         rm -rf $(DL_DIR)
 371 endif
 372         rm -rf $(BUILD_DIR) $(PROJECT_BUILD_DIR) $(BINARIES_DIR) \
 373         $(LINUX_KERNEL) $(IMAGE) $(BASE_DIR)/include \
 374                 .config* .auto.deps $(dependencies) \
 375                 $(BR2_UCLIBC_CONFIG_FOR_BUILDROOT)
 376         $(MAKE) -C $(CONFIG) clean distclean
 377
 378 sourceball:
 379         rm -rf $(BUILD_DIR) $(PROJECT_BUILD_DIR) $(BINARIES_DIR)
 380         set -e; \
 381         cd ..; \
 382         rm -f buildroot.tar.bz2; \
 383         tar -cvf buildroot.tar buildroot; \
 384         bzip2 -9 buildroot.tar; \
 385
 386
 387 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 388
 389 all: menuconfig
 390
 391 # configuration
 392 # ---------------------------------------------------------------------------
 393
 394 HOSTCFLAGS=$(CFLAGS_FOR_BUILD)
 395 export HOSTCFLAGS
 396
 397 $(CONFIG)/conf:
 398         @mkdir -p $(CONFIG)/buildroot-config
 399         $(MAKE) CC="$(HOSTCC)" -C $(CONFIG) conf
 400         -@if [ ! -f .config ]; then \
 401                 cp $(CONFIG_DEFCONFIG) .config; \
 402         fi
 403 $(CONFIG)/mconf:
 404         @mkdir -p $(CONFIG)/buildroot-config
 405         $(MAKE) CC="$(HOSTCC)" -C $(CONFIG) conf mconf
 406         -@if [ ! -f .config ]; then \
 407                 cp $(CONFIG_DEFCONFIG) .config; \
 408         fi
 409
 410 menuconfig: $(CONFIG)/mconf
 411         @mkdir -p $(CONFIG)/buildroot-config
 412         @if ! KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 413                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 414                 $(CONFIG)/mconf $(CONFIG_CONFIG_IN); then \
 415                 test -f .config.cmd || rm -f .config; \
 416         fi
 417
 418 config: $(CONFIG)/conf
 419         @mkdir -p $(CONFIG)/buildroot-config
 420         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 421                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 422                 $(CONFIG)/conf $(CONFIG_CONFIG_IN)
 423
 424 oldconfig: $(CONFIG)/conf
 425         @mkdir -p $(CONFIG)/buildroot-config
 426         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 427                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 428                 $(CONFIG)/conf -o $(CONFIG_CONFIG_IN)
 429
 430 silentoldconfig: $(CONFIG)/conf
 431         @mkdir -p $(CONFIG)/buildroot-config
 432         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 433                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 434                 $(CONFIG)/conf -s $(CONFIG_CONFIG_IN)
 435
 436 randconfig: $(CONFIG)/conf
 437         @mkdir -p $(CONFIG)/buildroot-config
 438         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 439                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 440                 $(CONFIG)/conf -r $(CONFIG_CONFIG_IN)
 441
 442 allyesconfig: $(CONFIG)/conf
 443         cat $(CONFIG_DEFCONFIG) > .config
 444         @mkdir -p $(CONFIG)/buildroot-config
 445         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 446                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 447                 $(CONFIG)/conf -y $(CONFIG_CONFIG_IN)
 448         #sed -i -e "s/^CONFIG_DEBUG.*/# CONFIG_DEBUG is not set/" .config
 449
 450 allnoconfig: $(CONFIG)/conf
 451         @mkdir -p $(CONFIG)/buildroot-config
 452         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 453                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 454                 $(CONFIG)/conf -n $(CONFIG_CONFIG_IN)
 455
 456 defconfig: $(CONFIG)/conf
 457         @mkdir -p $(CONFIG)/buildroot-config
 458         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 459                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 460                 $(CONFIG)/conf -d $(CONFIG_CONFIG_IN)
 461
 462 # check if download URLs are outdated
 463 source-check: allyesconfig
 464         $(MAKE) _source-check
 465
 466 #############################################################
 467 #
 468 # Cleanup and misc junk
 469 #
 470 #############################################################
 471 clean:
 472         rm -f .config .config.old .config.cmd .tmpconfig.h
 473         -$(MAKE) -C $(CONFIG) clean
 474
 475 distclean: clean
 476         rm -rf sources/*
 477
 478 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 479
 480 %_defconfig: $(CONFIG)/conf
 481         cp $(shell find ./target/ -name $@) .config
 482         -@$(MAKE) oldconfig
 483
 484 configured: dirs host-sed kernel-headers libc-config busybox-config linux26-config
 485
 486 cross: $(BASE_TARGETS)
 487
 488 help:
 489         @echo 'Cleaning:'
 490         @echo '  clean                  - delete temporary files created by build'
 491         @echo '  distclean              - delete all non-source files (including .config)'
 492         @echo
 493         @echo 'Build:'
 494         @echo '  all                    - make world'
 495         @echo
 496         @echo 'Configuration:'
 497         @echo '  menuconfig             - interactive curses-based configurator'
 498         @echo '  oldconfig              - resolve any unresolved symbols in .config'
 499         @echo '  silentoldconfig        - silently resolve any unresolved symbols in .config'
 500         @echo
 501         @echo 'Miscellaneous:'
 502         @echo '  source                 - download all sources needed for offline-build'
 503         @echo '  source-check           - check all packages for valid download URLs'
 504         @echo
 505         @echo 'See docs/README and docs/buildroot.html for further details'
 506         @echo
 507
 508 .PHONY: dummy subdirs release distclean clean config oldconfig \
 509         menuconfig tags check test depend defconfig help
 510