pass ARCH down to uClibc
[buildroot.git] / Makefile
blob18f470016a5663593736a88698e7287786d6d4e2
1 # Makefile for buildroot2
3 # Copyright (C) 1999-2005 by Erik Andersen <andersen@codepoet.org>
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.
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.
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
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)
30 noconfig_targets:=menuconfig config oldconfig randconfig \
31 defconfig allyesconfig allnoconfig release tags \
32 silentoldconfig source-check help
34 # $(shell find . -name *_defconfig |sed 's/.*\///')
36 # Pull in the user's configuration file
37 ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),)
38 ifeq ($(BOARD),)
39 -include $(TOPDIR).config
40 else
41 -include $(TOPDIR)/local/$(BOARD)/$(BOARD).config
42 endif
43 endif
45 ifneq ($(BUILDROOT_DL_DIR),)
46 BR2_DL_DIR:=$(BUILDROOT_DL_DIR)
47 endif
48 ifneq ($(BUILDROOT_LOCAL),)
49 LOCAL:=$(BUILDROOT_LOCAL)
50 else
51 LOCAL:=local
52 endif
54 # To put more focus on warnings, be less verbose as default
55 # Use 'make V=1' to see the full commands
56 ifdef V
57 ifeq ("$(origin V)", "command line")
58 KBUILD_VERBOSE=$(V)
59 endif
60 endif
61 ifndef KBUILD_VERBOSE
62 KBUILD_VERBOSE=0
63 endif
65 ifeq ($(KBUILD_VERBOSE),1)
66 quiet=
68 ifndef VERBOSE
69 VERBOSE=1
70 endif
71 else
72 quiet=quiet_
73 Q=@
74 endif
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)
80 export CONFIG_SHELL quiet Q KBUILD_VERBOSE VERBOSE
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 $(HOSTNM) || echo nm)
123 ifndef CFLAGS_FOR_BUILD
124 CFLAGS_FOR_BUILD:=-g -O2
125 endif
126 ifndef CXXFLAGS_FOR_BUILD
127 CXXFLAGS_FOR_BUILD:=-g -O2
128 endif
129 ifndef FCFLAGS_FOR_BUILD
130 FCFLAGS_FOR_BUILD:=-g -O2
131 endif
132 export HOSTAR HOSTAS HOSTCC HOSTCXX HOSTGCJ HOSTFC HOSTLD
135 ifeq ($(BR2_HAVE_DOT_CONFIG),y)
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 "$(2)"; fi ;)
144 #############################################################
146 # Hide troublesome environment variables from sub processes
148 #############################################################
149 unexport CROSS_COMPILE
150 unexport ARCH
152 #############################################################
154 # Setup the proper filename extensions for the host
156 ##############################################################
157 ifneq ($(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,$(BR2_GNU_BUILD_SUFFIX)),)
175 HOST_EXEEXT:=.exe
176 HOST_LIBEXT:=.lib
177 HOST_SHREXT:=.dll
178 endif
180 # The preferred type of libs we build for the target
181 ifeq ($(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
190 BR2_LIBC_NAME:=$(strip ",,$(BR2_LIBC_NAME))
193 ##############################################################
195 # The list of stuff to build for the target toolchain
196 # along with the packages to build for the target.
198 ##############################################################
199 ifeq ($(BR2_TOOLCHAIN_SOURCE),y)
200 BASE_TARGETS:=libc-configured binutils cross_compiler libc_target
201 else
202 BASE_TARGETS:=libc
203 endif
204 TARGETS:=
206 # setup our paths
207 include project/Makefile.in
209 BR2_DEPENDS_DIR=$(PROJECT_BUILD_DIR)/buildroot-config
211 include toolchain/Makefile.in
212 include package/Makefile.in
214 #############################################################
216 # You should probably leave this stuff alone unless you know
217 # what you are doing.
219 #############################################################
221 all: world
223 # In this section, we need .config
224 include .config.cmd
226 include project/*.mk
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
257 ifeq ($(BR2_PACKAGE_LINUX),y)
258 TARGETS+=linux26-modules
259 endif
261 include package/*/*.mk
263 # target stuff is last so it can override anything else
264 include target/Makefile.in
266 TARGETS+=erase-fakeroots
268 TARGETS_CLEAN:=$(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
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
281 dirs: $(DL_DIR) $(TOOL_BUILD_DIR) $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \
282 $(BR2_DEPENDS_DIR) \
283 $(BINARIES_DIR) $(PROJECT_BUILD_DIR)
285 $(BASE_TARGETS): | dirs
287 world: $(dependencies) dirs target-host-info $(BASE_TARGETS) $(TARGETS_ALL)
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
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 {} \;
302 #############################################################
304 # staging and target directories do NOT list these as
305 # dependencies anywhere else
307 #############################################################
308 $(DL_DIR) $(TOOL_BUILD_DIR) $(BUILD_DIR) \
309 $(PROJECT_BUILD_DIR) $(BINARIES_DIR):
310 @mkdir -p $@
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; \
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
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; \
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 $@
346 $(TARGET_DIR): $(PROJECT_BUILD_DIR)/.root
348 erase-fakeroots:
349 rm -f $(PROJECT_BUILD_DIR)/.fakeroot*
351 source: $(TARGETS_SOURCE) $(HOST_SOURCE)
353 _source-check:
354 $(MAKE) SPIDER=--spider source
356 #############################################################
358 # Cleanup and misc junk
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
366 dirclean: $(TARGETS_DIRCLEAN) clean
368 distclean:
369 ifeq ($(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
378 sourceball:
379 rm -rf $(BUILD_DIR) $(PROJECT_BUILD_DIR) $(BINARIES_DIR)
380 set -e; \
381 cd ..; \
382 rm -f buildroot.tar.bz2; \
383 tar -cvf buildroot.tar buildroot; \
384 bzip2 -9 buildroot.tar; \
387 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
389 all: menuconfig
391 # configuration
392 # ---------------------------------------------------------------------------
394 HOSTCFLAGS=$(CFLAGS_FOR_BUILD)
395 export HOSTCFLAGS
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; \
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; \
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; \
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)
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)
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)
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)
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
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)
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)
462 # check if download URLs are outdated
463 source-check: allyesconfig
464 $(MAKE) _source-check
466 #############################################################
468 # Cleanup and misc junk
470 #############################################################
471 clean:
472 rm -f .config .config.old .config.cmd .tmpconfig.h
473 -$(MAKE) -C $(CONFIG) clean
475 distclean: clean
476 rm -rf sources/*
478 endif # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
480 %_defconfig: $(CONFIG)/conf
481 cp $(shell find ./target/ -name $@) .config
482 -@$(MAKE) oldconfig
484 configured: dirs host-sed kernel-headers libc-config busybox-config linux26-config
486 cross: $(BASE_TARGETS)
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
508 .PHONY: dummy subdirs release distclean clean config oldconfig \
509 menuconfig tags check test depend defconfig help