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 ##############################################################
 187 #
 188 # The list of stuff to build for the target toolchain
 189 # along with the packages to build for the target.
 190 #
 191 ##############################################################
 192 ifeq ($(BR2_TOOLCHAIN_SOURCE),y)
 193 BASE_TARGETS:=uclibc-configured binutils cross_compiler uclibc-target-utils
 194 else
 195 BASE_TARGETS:=uclibc
 196 endif
 197 TARGETS:=
 198
 199 # setup our paths
 200 include project/Makefile.in
 201
 202 BR2_DEPENDS_DIR=$(PROJECT_BUILD_DIR)/buildroot-config
 203
 204 include toolchain/Makefile.in
 205 include package/Makefile.in
 206
 207 #############################################################
 208 #
 209 # You should probably leave this stuff alone unless you know
 210 # what you are doing.
 211 #
 212 #############################################################
 213
 214 all: world
 215
 216 # In this section, we need .config
 217 include .config.cmd
 218
 219 include project/*.mk
 220
 221 # We also need the various per-package makefiles, which also add
 222 # each selected package to TARGETS if that package was selected
 223 # in the .config file.
 224 ifeq ($(BR2_TOOLCHAIN_SOURCE),y)
 225 # avoid pulling in external toolchain which is broken for toplvl parallel builds
 226 # Explicit ordering:
 227 include toolchain/dependencies/dependencies.mk
 228 include toolchain/binutils/binutils.mk
 229 include toolchain/ccache/ccache.mk
 230 include toolchain/elf2flt/elf2flt.mk
 231 include toolchain/gcc/gcc-uclibc-3.x.mk
 232 include toolchain/gcc/gcc-uclibc-4.x.mk
 233 include toolchain/gdb/gdb.mk
 234 include toolchain/kernel-headers/kernel-headers.mk
 235 include toolchain/mklibs/mklibs.mk
 236 include toolchain/sstrip/sstrip.mk
 237 include toolchain/uClibc/uclibc.mk
 238 else
 239 include toolchain/*/*.mk
 240 endif
 241
 242 ifeq ($(BR2_PACKAGE_LINUX),y)
 243 TARGETS+=linux26-modules
 244 endif
 245
 246 include package/*/*.mk
 247
 248 # target stuff is last so it can override anything else
 249 include target/Makefile.in
 250
 251 TARGETS+=erase-fakeroots
 252
 253 TARGETS_CLEAN:=$(patsubst %,%-clean,$(TARGETS))
 254 TARGETS_SOURCE:=$(patsubst %,%-source,$(TARGETS) $(BASE_TARGETS))
 255 TARGETS_DIRCLEAN:=$(patsubst %,%-dirclean,$(TARGETS))
 256 TARGETS_ALL:=$(patsubst %,__real_tgt_%,$(TARGETS))
 257 # all targets depend on the crosscompiler and it's prerequisites
 258 $(TARGETS_ALL): __real_tgt_%: $(BASE_TARGETS) % libtool_cluebait
 259
 260
 261 BR2_UCLIBC_CONFIG_FOR_BUILDROOT=$(BASE_DIR)/.buildroot.uclibc_config
 262 $(BR2_UCLIBC_CONFIG_FOR_BUILDROOT): $(dependencies) $(UCLIBC_DIR)/.config
 263         # Create BR2__UCLIBC_SYM=val
 264         cat $(UCLIBC_DIR)/.config > $(BR2_UCLIBC_CONFIG_FOR_BUILDROOT)
 265         $(SED) '/#/d' -e '/^$$/d' -e 's,\([^=]*\)=\(.*\),BR2__UCLIBC_\1=\2,g' \
 266                 $(BR2_UCLIBC_CONFIG_FOR_BUILDROOT)
 267         touch -c $@
 268
 269 ifeq ($(BR2__UCLIBC_HAVE_DOT_CONFIG),)
 270 ifeq ($(filter uclibc-menuconfig,$(MAKECMDGOALS)),)
 271 ifneq ($(wildcard $(UCLIBC_CONFIG_FILE)),)
 272 ifeq ($(findstring host-,$(MAKECMDGOALS)),)
 273 include $(BR2_UCLIBC_CONFIG_FOR_BUILDROOT)
 274 endif
 275 endif
 276 endif
 277 endif
 278
 279 $(BR2_DEPENDS_DIR): .config
 280         rm -rf $(BR2_DEPENDS_DIR)
 281         $(INSTALL) -d $(@D)
 282         cp -dpRf $(CONFIG)/buildroot-config $(BR2_DEPENDS_DIR)
 283         touch $@/.done
 284
 285 dirs: $(DL_DIR) $(TOOL_BUILD_DIR) $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 286         $(BR2_DEPENDS_DIR) \
 287         $(BINARIES_DIR) $(PROJECT_BUILD_DIR)
 288
 289 $(BASE_TARGETS): dirs
 290
 291 world: $(dependencies) dirs target-host-info $(BASE_TARGETS) $(TARGETS_ALL)
 292
 293
 294 .PHONY: all world dirs clean dirclean distclean source \
 295         $(BASE_TARGETS) $(TARGETS) $(TARGETS_ALL) \
 296         $(TARGETS_CLEAN) $(TARGETS_DIRCLEAN) $(TARGETS_SOURCE) \
 297         $(DL_DIR) $(TOOL_BUILD_DIR) $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 298         $(BR2_DEPENDS_DIR) \
 299         $(BINARIES_DIR) $(PROJECT_BUILD_DIR) libtool_cluebait
 300
 301 # libtool currently does not play nice with cross-compiling
 302 libtool_cluebait:
 303         $(Q)find $(STAGING_DIR)/lib* -name "*.la" -exec rm -f {} \;
 304         $(Q)find $(STAGING_DIR)/usr/lib* -name "*.la" -exec rm -f {} \;
 305
 306 #############################################################
 307 #
 308 # staging and target directories do NOT list these as
 309 # dependencies anywhere else
 310 #
 311 #############################################################
 312 $(DL_DIR) $(TOOL_BUILD_DIR) $(BUILD_DIR) \
 313         $(PROJECT_BUILD_DIR) $(BINARIES_DIR):
 314         @mkdir -p $@
 315
 316 $(STAGING_DIR):
 317         @mkdir -p $(STAGING_DIR)/bin
 318         @mkdir -p $(STAGING_DIR)/lib
 319 ifeq ($(BR2_TOOLCHAIN_SYSROOT),y)
 320         @mkdir -p $(STAGING_DIR)/usr/lib
 321 else
 322         @if test ! -L $(STAGING_DIR)/usr && test -d $(STAGING_DIR)/usr; then \
 323           echo "You seem to be coming from a toolchain with sysroot support."; \
 324           echo "Reconfiguring without wiping your rootfs will not work, sorry.";\
 325           echo "Please 'rm -rf $(STAGING_DIR)'"; \
 326           echo "Then run 'make' again."; \
 327           echo ""; \
 328           exit 1; \
 329         fi
 330         ln -snf . $(STAGING_DIR)/usr
 331         @mkdir -p $(STAGING_DIR)/usr/$(REAL_GNU_TARGET_NAME)
 332         ln -snf ../lib $(STAGING_DIR)/usr/lib
 333         ln -snf ../lib $(STAGING_DIR)/usr/$(REAL_GNU_TARGET_NAME)/lib
 334 endif
 335         @mkdir -p $(STAGING_DIR)/usr/include
 336
 337 $(PROJECT_BUILD_DIR)/.root:
 338         mkdir -p $(TARGET_DIR)
 339         if ! [ -d "$(TARGET_DIR)/bin" ]; then \
 340                 if [ -d "$(TARGET_SKELETON)" ]; then \
 341                         cp -fa $(TARGET_SKELETON)/* $(TARGET_DIR)/; \
 342                 fi; \
 343                 touch $(STAGING_DIR)/.fakeroot.00000; \
 344         fi
 345         -find $(TARGET_DIR) -type d -name CVS | xargs rm -rf
 346         -find $(TARGET_DIR) -type d -name .svn | xargs rm -rf
 347         -find $(TARGET_DIR) -type d -name .gitignore | xargs rm -rf
 348         touch $@
 349
 350 $(TARGET_DIR): $(PROJECT_BUILD_DIR)/.root
 351
 352 erase-fakeroots:
 353         rm -f $(PROJECT_BUILD_DIR)/.fakeroot*
 354
 355 source: $(TARGETS_SOURCE) $(HOST_SOURCE)
 356
 357 _source-check:
 358         $(MAKE) SPIDER=--spider source
 359
 360 #############################################################
 361 #
 362 # Cleanup and misc junk
 363 #
 364 #############################################################
 365 clean: $(TARGETS_CLEAN)
 366         rm -rf $(STAGING_DIR) $(TARGET_DIR) $(IMAGE) \
 367                 $(PROJECT_BUILD_DIR)/.root $(PROJECT_BUILD_DIR)/autotools-stamps
 368
 369 dirclean: $(TARGETS_DIRCLEAN)
 370         rm -rf $(STAGING_DIR) $(TARGET_DIR) $(IMAGE) \
 371                 $(PROJECT_BUILD_DIR)/.root $(PROJECT_BUILD_DIR)/autotools-stamps
 372
 373 distclean:
 374 ifeq ($(DL_DIR),$(BASE_DIR)/dl)
 375         rm -rf $(DL_DIR)
 376 endif
 377         rm -rf $(BUILD_DIR) $(PROJECT_BUILD_DIR) $(BINARIES_DIR) \
 378         $(LINUX_KERNEL) $(IMAGE) $(BASE_DIR)/include \
 379                 .config* .auto.deps
 380         $(MAKE) -C $(CONFIG) clean distclean
 381
 382 sourceball:
 383         rm -rf $(BUILD_DIR) $(PROJECT_BUILD_DIR) $(BINARIES_DIR)
 384         set -e; \
 385         cd ..; \
 386         rm -f buildroot.tar.bz2; \
 387         tar -cvf buildroot.tar buildroot; \
 388         bzip2 -9 buildroot.tar; \
 389
 390
 391 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 392
 393 all: menuconfig
 394
 395 # configuration
 396 # ---------------------------------------------------------------------------
 397
 398 HOSTCFLAGS=$(CFLAGS_FOR_BUILD)
 399 export HOSTCFLAGS
 400
 401 $(CONFIG)/conf:
 402         @mkdir -p $(CONFIG)/buildroot-config
 403         $(MAKE) CC="$(HOSTCC)" -C $(CONFIG) conf
 404         -@if [ ! -f .config ]; then \
 405                 cp $(CONFIG_DEFCONFIG) .config; \
 406         fi
 407 $(CONFIG)/mconf:
 408         @mkdir -p $(CONFIG)/buildroot-config
 409         $(MAKE) CC="$(HOSTCC)" -C $(CONFIG) conf mconf
 410         -@if [ ! -f .config ]; then \
 411                 cp $(CONFIG_DEFCONFIG) .config; \
 412         fi
 413
 414 menuconfig: $(CONFIG)/mconf
 415         @mkdir -p $(CONFIG)/buildroot-config
 416         @if ! KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 417                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 418                 $(CONFIG)/mconf $(CONFIG_CONFIG_IN); then \
 419                 test -f .config.cmd || rm -f .config; \
 420         fi
 421
 422 config: $(CONFIG)/conf
 423         @mkdir -p $(CONFIG)/buildroot-config
 424         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 425                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 426                 $(CONFIG)/conf $(CONFIG_CONFIG_IN)
 427
 428 oldconfig: $(CONFIG)/conf
 429         @mkdir -p $(CONFIG)/buildroot-config
 430         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 431                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 432                 $(CONFIG)/conf -o $(CONFIG_CONFIG_IN)
 433
 434 silentoldconfig: $(CONFIG)/conf
 435         @mkdir -p $(CONFIG)/buildroot-config
 436         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 437                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 438                 $(CONFIG)/conf -s $(CONFIG_CONFIG_IN)
 439
 440 randconfig: $(CONFIG)/conf
 441         @mkdir -p $(CONFIG)/buildroot-config
 442         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 443                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 444                 $(CONFIG)/conf -r $(CONFIG_CONFIG_IN)
 445
 446 allyesconfig: $(CONFIG)/conf
 447         cat $(CONFIG_DEFCONFIG) > .config
 448         @mkdir -p $(CONFIG)/buildroot-config
 449         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 450                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 451                 $(CONFIG)/conf -y $(CONFIG_CONFIG_IN)
 452         #sed -i -e "s/^CONFIG_DEBUG.*/# CONFIG_DEBUG is not set/" .config
 453
 454 allnoconfig: $(CONFIG)/conf
 455         @mkdir -p $(CONFIG)/buildroot-config
 456         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 457                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 458                 $(CONFIG)/conf -n $(CONFIG_CONFIG_IN)
 459
 460 defconfig: $(CONFIG)/conf
 461         @mkdir -p $(CONFIG)/buildroot-config
 462         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 463                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 464                 $(CONFIG)/conf -d $(CONFIG_CONFIG_IN)
 465
 466 # check if download URLs are outdated
 467 source-check: allyesconfig
 468         $(MAKE) _source-check
 469
 470 #############################################################
 471 #
 472 # Cleanup and misc junk
 473 #
 474 #############################################################
 475 clean:
 476         rm -f .config .config.old .config.cmd .tmpconfig.h
 477         -$(MAKE) -C $(CONFIG) clean
 478
 479 distclean: clean
 480         rm -rf sources/*
 481
 482 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 483
 484 %_defconfig: $(CONFIG)/conf
 485         cp $(shell find ./target/ -name $@) .config
 486         -@$(MAKE) oldconfig
 487
 488 configured: dirs host-sed kernel-headers uclibc-config busybox-config linux26-config
 489
 490 cross: $(BASE_TARGETS)
 491
 492 help:
 493         @echo 'Cleaning:'
 494         @echo '  clean                  - delete temporary files created by build'
 495         @echo '  distclean              - delete all non-source files (including .config)'
 496         @echo
 497         @echo 'Build:'
 498         @echo '  all                    - make world'
 499         @echo
 500         @echo 'Configuration:'
 501         @echo '  menuconfig             - interactive curses-based configurator'
 502         @echo '  oldconfig              - resolve any unresolved symbols in .config'
 503         @echo '  silentoldconfig        - silently resolve any unresolved symbols in .config'
 504         @echo
 505         @echo 'Miscellaneous:'
 506         @echo '  source                 - download all sources needed for offline-build'
 507         @echo '  source-check           - check all packages for valid download URLs'
 508         @echo
 509         @echo 'See docs/README and docs/buildroot.html for further details'
 510         @echo
 511
 512 .PHONY: dummy subdirs release distclean clean config oldconfig \
 513         menuconfig tags check test depend defconfig help
 514