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