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,$(BR2_GNU_BUILD_SUFFIX)),)
 163 HOST_EXEEXT:=.exe
 164 HOST_LIBEXT:=.lib
 165 HOST_SHREXT:=.dll
 166 endif
 167 ifneq ($(findstring mingw,$(BR2_GNU_BUILD_SUFFIX)),)
 168 HOST_EXEEXT:=.exe
 169 HOST_LIBEXT:=.lib
 170 HOST_SHREXT:=.dll
 171 endif
 172
 173 # The preferred type of libs we build for the target
 174 ifeq ($(BR2_PREFER_STATIC_LIB),y)
 175 LIBTGTEXT=.a
 176 #PREFERRED_LIB_FLAGS:=--disable-shared --enable-static
 177 else
 178 LIBTGTEXT=.so
 179 #PREFERRED_LIB_FLAGS:=--disable-static --enable-shared
 180 endif
 181 PREFERRED_LIB_FLAGS:=--enable-static --enable-shared
 182
 183 ##############################################################
 184 #
 185 # The list of stuff to build for the target toolchain
 186 # along with the packages to build for the target.
 187 #
 188 ##############################################################
 189 ifeq ($(BR2_TOOLCHAIN_SOURCE),y)
 190 BASE_TARGETS:=uclibc-configured binutils cross_compiler uclibc-target-utils
 191 else
 192 BASE_TARGETS:=uclibc
 193 endif
 194 TARGETS:=
 195
 196 # setup our pathes
 197 include project/Makefile.in
 198
 199 BR2_DEPENDS_DIR=$(PROJECT_BUILD_DIR)/buildroot-config
 200
 201 include toolchain/Makefile.in
 202 include package/Makefile.in
 203
 204 #############################################################
 205 #
 206 # You should probably leave this stuff alone unless you know
 207 # what you are doing.
 208 #
 209 #############################################################
 210
 211 all: world
 212
 213 # In this section, we need .config
 214 include .config.cmd
 215
 216 include project/*.mk
 217
 218 # We also need the various per-package makefiles, which also add
 219 # each selected package to TARGETS if that package was selected
 220 # in the .config file.
 221 ifeq ($(BR2_TOOLCHAIN_SOURCE),y)
 222 # avoid pulling in external toolchain which is broken for toplvl parallel builds
 223 # Explicit ordering:
 224 include toolchain/dependencies/dependencies.mk
 225 include toolchain/binutils/binutils.mk
 226 include toolchain/ccache/ccache.mk
 227 include toolchain/elf2flt/elf2flt.mk
 228 include toolchain/gcc/gcc-uclibc-3.x.mk
 229 include toolchain/gcc/gcc-uclibc-4.x.mk
 230 include toolchain/gdb/gdb.mk
 231 include toolchain/kernel-headers/kernel-headers.mk
 232 include toolchain/mklibs/mklibs.mk
 233 include toolchain/sstrip/sstrip.mk
 234 include toolchain/uClibc/uclibc.mk
 235 else
 236 include toolchain/*/*.mk
 237 endif
 238
 239 ifeq ($(BR2_PACKAGE_LINUX),y)
 240 TARGETS+=linux26-modules
 241 endif
 242
 243 include package/*/*.mk
 244
 245 # target stuff is last so it can override anything else
 246 include target/Makefile.in
 247
 248 TARGETS+=erase-fakeroots
 249
 250 TARGETS_CLEAN:=$(patsubst %,%-clean,$(TARGETS))
 251 TARGETS_SOURCE:=$(patsubst %,%-source,$(TARGETS) $(BASE_TARGETS))
 252 TARGETS_DIRCLEAN:=$(patsubst %,%-dirclean,$(TARGETS))
 253 TARGETS_ALL:=$(patsubst %,__real_tgt_%,$(TARGETS))
 254 # all targets depend on the crosscompiler and it's prerequisites
 255 $(TARGETS_ALL): __real_tgt_%: $(BASE_TARGETS) %
 256
 257 $(BR2_DEPENDS_DIR): .config
 258         rm -rf $@
 259         mkdir -p $(@D)
 260         cp -dpRf $(CONFIG)/buildroot-config $@
 261
 262 dirs: $(DL_DIR) $(TOOL_BUILD_DIR) $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 263         $(BR2_DEPENDS_DIR) \
 264         $(BINARIES_DIR) $(PROJECT_BUILD_DIR)
 265
 266 $(BASE_TARGETS): dirs
 267
 268 world: dependencies dirs target-host-info $(BASE_TARGETS) $(TARGETS_ALL)
 269
 270
 271 .PHONY: all world dirs clean dirclean distclean source \
 272         $(BASE_TARGETS) $(TARGETS) $(TARGETS_ALL) \
 273         $(TARGETS_CLEAN) $(TARGETS_DIRCLEAN) $(TARGETS_SOURCE) \
 274         $(DL_DIR) $(TOOL_BUILD_DIR) $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
 275         $(BR2_DEPENDS_DIR) \
 276         $(BINARIES_DIR) $(PROJECT_BUILD_DIR)
 277
 278 #############################################################
 279 #
 280 # staging and target directories do NOT list these as
 281 # dependencies anywhere else
 282 #
 283 #############################################################
 284 $(DL_DIR) $(TOOL_BUILD_DIR) $(BUILD_DIR) \
 285         $(PROJECT_BUILD_DIR) $(BINARIES_DIR):
 286         @mkdir -p $@
 287
 288 $(STAGING_DIR):
 289         @mkdir -p $(STAGING_DIR)/bin
 290         @mkdir -p $(STAGING_DIR)/lib
 291 ifeq ($(BR2_TOOLCHAIN_SYSROOT),y)
 292         @mkdir -p $(STAGING_DIR)/usr/lib
 293 else
 294         @ln -snf . $(STAGING_DIR)/usr
 295         @mkdir -p $(STAGING_DIR)/usr/$(REAL_GNU_TARGET_NAME)
 296         @ln -snf ../lib $(STAGING_DIR)/usr/lib
 297         @ln -snf ../lib $(STAGING_DIR)/usr/$(REAL_GNU_TARGET_NAME)/lib
 298 endif
 299         @mkdir -p $(STAGING_DIR)/usr/include
 300
 301 $(PROJECT_BUILD_DIR)/.root:
 302         mkdir -p $(TARGET_DIR)
 303         if ! [ -d "$(TARGET_DIR)/bin" ]; then \
 304                 if [ -d "$(TARGET_SKELETON)" ]; then \
 305                         cp -fa $(TARGET_SKELETON)/* $(TARGET_DIR)/; \
 306                 fi; \
 307                 touch $(STAGING_DIR)/.fakeroot.00000; \
 308         fi
 309         -find $(TARGET_DIR) -type d -name CVS | xargs rm -rf
 310         -find $(TARGET_DIR) -type d -name .svn | xargs rm -rf
 311         touch $@
 312
 313 $(TARGET_DIR): $(PROJECT_BUILD_DIR)/.root
 314
 315 erase-fakeroots:
 316         rm -f $(PROJECT_BUILD_DIR)/.fakeroot*
 317
 318 source: $(TARGETS_SOURCE) $(HOST_SOURCE)
 319
 320 _source-check:
 321         $(MAKE) SPIDER=--spider source
 322
 323 #############################################################
 324 #
 325 # Cleanup and misc junk
 326 #
 327 #############################################################
 328 clean: $(TARGETS_CLEAN)
 329         rm -rf $(STAGING_DIR) $(TARGET_DIR) $(IMAGE)
 330
 331 dirclean: $(TARGETS_DIRCLEAN)
 332         rm -rf $(STAGING_DIR) $(TARGET_DIR) $(IMAGE)
 333
 334 distclean:
 335 ifeq ($(DL_DIR),$(BASE_DIR)/dl)
 336         rm -rf $(DL_DIR)
 337 endif
 338         rm -rf $(BUILD_DIR) $(PROJECT_BUILD_DIR) $(BINARIES_DIR) \
 339         $(LINUX_KERNEL) $(IMAGE) $(BASE_DIR)/include \
 340                 .config* .auto.deps
 341         $(MAKE) -C $(CONFIG) clean distclean
 342
 343 sourceball:
 344         rm -rf $(BUILD_DIR) $(PROJECT_BUILD_DIR) $(BINARIES_DIR)
 345         set -e; \
 346         cd ..; \
 347         rm -f buildroot.tar.bz2; \
 348         tar -cvf buildroot.tar buildroot; \
 349         bzip2 -9 buildroot.tar; \
 350
 351
 352 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 353
 354 all: menuconfig
 355
 356 # configuration
 357 # ---------------------------------------------------------------------------
 358
 359 HOSTCFLAGS=$(CFLAGS_FOR_BUILD)
 360 export HOSTCFLAGS
 361
 362 $(CONFIG)/conf:
 363         @mkdir -p $(CONFIG)/buildroot-config
 364         $(MAKE) CC="$(HOSTCC)" -C $(CONFIG) conf
 365         -@if [ ! -f .config ]; then \
 366                 cp $(CONFIG_DEFCONFIG) .config; \
 367         fi
 368 $(CONFIG)/mconf:
 369         @mkdir -p $(CONFIG)/buildroot-config
 370         $(MAKE) CC="$(HOSTCC)" -C $(CONFIG) conf mconf
 371         -@if [ ! -f .config ]; then \
 372                 cp $(CONFIG_DEFCONFIG) .config; \
 373         fi
 374
 375 menuconfig: $(CONFIG)/mconf
 376         @mkdir -p $(CONFIG)/buildroot-config
 377         @if ! KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 378                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 379                 $(CONFIG)/mconf $(CONFIG_CONFIG_IN); then \
 380                 test -f .config.cmd || rm -f .config; \
 381         fi
 382
 383 config: $(CONFIG)/conf
 384         @mkdir -p $(CONFIG)/buildroot-config
 385         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 386                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 387                 $(CONFIG)/conf $(CONFIG_CONFIG_IN)
 388
 389 oldconfig: $(CONFIG)/conf
 390         @mkdir -p $(CONFIG)/buildroot-config
 391         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 392                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 393                 $(CONFIG)/conf -o $(CONFIG_CONFIG_IN)
 394
 395 randconfig: $(CONFIG)/conf
 396         @mkdir -p $(CONFIG)/buildroot-config
 397         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 398                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 399                 $(CONFIG)/conf -r $(CONFIG_CONFIG_IN)
 400
 401 allyesconfig: $(CONFIG)/conf
 402         cat $(CONFIG_DEFCONFIG) > .config
 403         @mkdir -p $(CONFIG)/buildroot-config
 404         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 405                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 406                 $(CONFIG)/conf -y $(CONFIG_CONFIG_IN)
 407         #sed -i -e "s/^CONFIG_DEBUG.*/# CONFIG_DEBUG is not set/" .config
 408
 409 allnoconfig: $(CONFIG)/conf
 410         @mkdir -p $(CONFIG)/buildroot-config
 411         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 412                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 413                 $(CONFIG)/conf -n $(CONFIG_CONFIG_IN)
 414
 415 defconfig: $(CONFIG)/conf
 416         @mkdir -p $(CONFIG)/buildroot-config
 417         @KCONFIG_AUTOCONFIG=$(CONFIG)/buildroot-config/auto.conf \
 418                 KCONFIG_AUTOHEADER=$(CONFIG)/buildroot-config/autoconf.h \
 419                 $(CONFIG)/conf -d $(CONFIG_CONFIG_IN)
 420
 421 # check if download URLs are outdated
 422 source-check: allyesconfig
 423         $(MAKE) _source-check
 424
 425 #############################################################
 426 #
 427 # Cleanup and misc junk
 428 #
 429 #############################################################
 430 clean:
 431         rm -f .config .config.old .config.cmd .tmpconfig.h
 432         -$(MAKE) -C $(CONFIG) clean
 433
 434 distclean: clean
 435         rm -rf sources/*
 436
 437 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 438
 439 %_defconfig: $(CONFIG)/conf
 440         cp $(shell find ./target/ -name $@) .config
 441         -@$(MAKE) oldconfig
 442
 443 configured: dirs host-sed kernel-headers uclibc-config busybox-config linux26-config
 444
 445 cross: $(BASE_TARGETS)
 446
 447 help:
 448         @echo 'Cleaning:'
 449         @echo '  clean                  - delete temporary files created by build'
 450         @echo '  distclean              - delete all non-source files (including .config)'
 451         @echo
 452         @echo 'Build:'
 453         @echo '  all                    - make world'
 454         @echo
 455         @echo 'Configuration:'
 456         @echo '  menuconfig             - interactive curses-based configurator'
 457         @echo '  oldconfig              - resolve any unresolved symbols in .config'
 458         @echo
 459         @echo 'Miscellaneous:'
 460         @echo '  source                 - download all sources needed for offline-build'
 461         @echo '  source-check           - check all packages for valid download URLs'
 462         @echo
 463         @echo 'See docs/README and docs/buildroot.html for further details'
 464         @echo
 465
 466 .PHONY: dummy subdirs release distclean clean config oldconfig \
 467         menuconfig tags check test depend defconfig help
 468