2333f2aaf5d1acacedc603a371178bb60a0e82a1
[openwrt/openwrt.git] / rules.mk
1 #
2 # Copyright (C) 2006-2010 OpenWrt.org
3 #
4 # This is free software, licensed under the GNU General Public License v2.
5 # See /LICENSE for more information.
6 #
7
8 ifneq ($(__rules_inc),1)
9 __rules_inc=1
10
11 ifeq ($(DUMP),)
12 -include $(TOPDIR)/.config
13 endif
14 include $(TOPDIR)/include/debug.mk
15 include $(TOPDIR)/include/verbose.mk
16
17 TMP_DIR:=$(TOPDIR)/tmp
18
19 GREP_OPTIONS=
20 export GREP_OPTIONS
21
22 qstrip=$(strip $(subst ",,$(1)))
23 #"))
24
25 empty:=
26 space:= $(empty) $(empty)
27 merge=$(subst $(space),,$(1))
28 confvar=$(call merge,$(foreach v,$(1),$(if $($(v)),y,n)))
29 strip_last=$(patsubst %.$(lastword $(subst .,$(space),$(1))),%,$(1))
30
31 define sep
32
33 endef
34
35 _SINGLE=export MAKEFLAGS=$(space);
36 CFLAGS:=
37 ARCH:=$(subst i486,i386,$(subst i586,i386,$(subst i686,i386,$(call qstrip,$(CONFIG_ARCH)))))
38 ARCH_PACKAGES:=$(call qstrip,$(CONFIG_TARGET_ARCH_PACKAGES))
39 BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD))
40 TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
41 TARGET_SUFFIX=$(call qstrip,$(CONFIG_TARGET_SUFFIX))
42 BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
43 SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
44 export SHELL:=/usr/bin/env bash
45
46 OPTIMIZE_FOR_CPU=$(subst i386,i486,$(ARCH))
47
48 ifeq ($(ARCH),powerpc)
49 FPIC:=-fPIC
50 else
51 FPIC:=-fpic
52 endif
53
54 HOST_FPIC:=-fPIC
55
56 ARCH_SUFFIX:=
57 GCC_ARCH:=
58
59 ifneq ($(filter -march=armv%,$(TARGET_OPTIMIZATION)),)
60 ARCH_SUFFIX:=_$(patsubst -march=arm%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
61 GCC_ARCH:=$(patsubst -march=%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
62 endif
63 ifneq ($(filter -mips%r2,$(TARGET_OPTIMIZATION)),)
64 ARCH_SUFFIX:=_r2
65 endif
66 ifdef CONFIG_USE_MIPS16
67 TARGET_OPTIMIZATION+= -minterlink-mips16 -mips16
68 endif
69 ifneq ($(findstring -mips16,$(TARGET_OPTIMIZATION)),)
70 TARGET_ASFLAGS_OVERRIDE:=-mno-mips16
71 ARCH_SUFFIX:= $(ARCH_SUFFIX)_m16
72 endif
73 ifdef CONFIG_HAS_SPE_FPU
74 TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
75 endif
76 ifdef CONFIG_MIPS64_ABI
77 ifneq ($(CONFIG_MIPS64_ABI_O32),y)
78 ARCH_SUFFIX:=$(ARCH_SUFFIX)_$(subst ",,$(CONFIG_MIPS64_ABI))
79 endif
80 endif
81
82 DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
83 BIN_DIR:=$(TOPDIR)/bin/$(BOARD)
84 INCLUDE_DIR:=$(TOPDIR)/include
85 SCRIPT_DIR:=$(TOPDIR)/scripts
86 BUILD_DIR_BASE:=$(TOPDIR)/build_dir
87 BUILD_DIR_HOST:=$(BUILD_DIR_BASE)/host
88 STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
89 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
90 GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
91 LIBC:=$(call qstrip,$(CONFIG_LIBC))
92 LIBCV:=$(call qstrip,$(CONFIG_LIBC_VERSION))
93 REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))
94 GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux
95 DIR_SUFFIX:=_$(LIBC)-$(LIBCV)$(if $(CONFIG_arm),_eabi)
96 BIN_DIR:=$(BIN_DIR)$(if $(CONFIG_USE_UCLIBC),,-$(LIBC))
97 BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
98 STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
99 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
100 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
101 PACKAGE_DIR:=$(BIN_DIR)/packages
102 else
103 ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
104 GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
105 else
106 GNU_TARGET_NAME=$(shell gcc -dumpmachine)
107 endif
108 REAL_GNU_TARGET_NAME=$(GNU_TARGET_NAME)
109 BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
110 STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
111 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(GNU_TARGET_NAME)
112 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(GNU_TARGET_NAME)
113 PACKAGE_DIR:=$(BIN_DIR)/packages
114 endif
115 STAMP_DIR:=$(BUILD_DIR)/stamp
116 STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
117 TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
118 TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
119 STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
120 BUILD_LOG_DIR:=$(TOPDIR)/logs
121 PKG_INFO_DIR := $(STAGING_DIR)/pkginfo
122
123 TARGET_PATH:=$(STAGING_DIR_HOST)/bin:$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
124 TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3)
125 TARGET_CXXFLAGS = $(TARGET_CFLAGS)
126 TARGET_ASFLAGS = $(TARGET_CFLAGS) $(TARGET_ASFLAGS_OVERRIDE)
127 TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
128 TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
129 ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
130 LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
131 LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
132 LIBGCC_A=$(realpath $(lastword $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a)))
133 else
134 LIBGCC_A=$(lastword $(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a))
135 LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
136 endif
137 LIBRPC=-lrpc
138 LIBRPC_DEPENDS=+librpc
139
140 ifeq ($(CONFIG_ARCH_64BIT),y)
141 LIB_SUFFIX:=64
142 endif
143
144 ifndef DUMP
145 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
146 -include $(TOOLCHAIN_DIR)/info.mk
147 export GCC_HONOUR_COPTS:=0
148 TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
149 TARGET_CFLAGS+= -fhonour-copts $(if $(CONFIG_GCC_VERSION_4_4)$(CONFIG_GCC_VERSION_4_5),,-Wno-error=unused-but-set-variable)
150 TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include -I$(TOOLCHAIN_DIR)/include
151 TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
152 TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
153 else
154 ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
155 TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
156 TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
157 TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
158 TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
159 TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
160 ifneq ($(TOOLCHAIN_BIN_DIRS),)
161 TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
162 endif
163 ifneq ($(TOOLCHAIN_INC_DIRS),)
164 TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
165 endif
166 ifneq ($(TOOLCHAIN_LIB_DIRS),)
167 TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
168 endif
169 TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
170 endif
171 endif
172 endif
173 TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(TARGET_PATH)
174
175 ifeq ($(CONFIG_SOFT_FLOAT),y)
176 SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
177 TARGET_CFLAGS+= -msoft-float
178 else
179 SOFT_FLOAT_CONFIG_OPTION:=
180 endif
181
182 export PATH:=$(TARGET_PATH)
183 export STAGING_DIR
184 export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
185
186 PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
187
188 export PKG_CONFIG
189
190 HOSTCC:=gcc
191 HOSTCXX:=g++
192 HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include
193 HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
194 HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib
195
196 TARGET_CC:=$(TARGET_CROSS)gcc
197 TARGET_AR:=$(TARGET_CROSS)ar
198 TARGET_RANLIB:=$(TARGET_CROSS)ranlib
199 TARGET_CXX:=$(if $(CONFIG_INSTALL_LIBSTDCPP),$(TARGET_CROSS)g++,no)
200 KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
201 SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
202 CP:=cp -fpR
203 LN:=ln -sf
204
205 INSTALL_BIN:=install -m0755
206 INSTALL_DIR:=install -d -m0755
207 INSTALL_DATA:=install -m0644
208 INSTALL_CONF:=install -m0600
209
210 TARGET_CC_NOCACHE:=$(TARGET_CC)
211 TARGET_CXX_NOCACHE:=$(TARGET_CXX)
212 HOSTCC_NOCACHE:=$(HOSTCC)
213 HOSTCXX_NOCACHE:=$(HOSTCXX)
214 export TARGET_CC_NOCACHE
215 export TARGET_CXX_NOCACHE
216 export HOSTCC_NOCACHE
217
218 ifneq ($(CONFIG_CCACHE),)
219 TARGET_CC:= ccache_cc
220 TARGET_CXX:= ccache_cxx
221 HOSTCC:= ccache $(HOSTCC)
222 HOSTCXX:= ccache $(HOSTCXX)
223 endif
224
225 TARGET_CONFIGURE_OPTS = \
226 AR=$(TARGET_CROSS)ar \
227 AS="$(TARGET_CC) -c $(TARGET_ASFLAGS)" \
228 LD=$(TARGET_CROSS)ld \
229 NM=$(TARGET_CROSS)nm \
230 CC="$(TARGET_CC)" \
231 GCC="$(TARGET_CC)" \
232 CXX="$(TARGET_CXX)" \
233 RANLIB=$(TARGET_CROSS)ranlib \
234 STRIP=$(TARGET_CROSS)strip \
235 OBJCOPY=$(TARGET_CROSS)objcopy \
236 OBJDUMP=$(TARGET_CROSS)objdump \
237 SIZE=$(TARGET_CROSS)size
238
239 # strip an entire directory
240 ifneq ($(CONFIG_NO_STRIP),)
241 RSTRIP:=:
242 STRIP:=:
243 else
244 ifneq ($(CONFIG_USE_STRIP),)
245 STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
246 else
247 ifneq ($(CONFIG_USE_SSTRIP),)
248 STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
249 endif
250 endif
251 RSTRIP:= \
252 export CROSS="$(TARGET_CROSS)" \
253 $(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
254 $(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
255 NM="$(TARGET_CROSS)nm" \
256 STRIP="$(STRIP)" \
257 STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
258 $(SCRIPT_DIR)/rstrip.sh
259 endif
260
261 ifeq ($(CONFIG_ENABLE_LOCALE),true)
262 DISABLE_NLS:=--enable-nls
263 else
264 DISABLE_NLS:=--disable-nls
265 endif
266
267 ifeq ($(CONFIG_IPV6),y)
268 DISABLE_IPV6:=
269 else
270 DISABLE_IPV6:=--disable-ipv6
271 endif
272
273 ifeq ($(CONFIG_TAR_VERBOSITY),y)
274 TAR_OPTIONS:=-xvf -
275 else
276 TAR_OPTIONS:=-xf -
277 endif
278
279 ifeq ($(CONFIG_BUILD_LOG),y)
280 BUILD_LOG:=1
281 endif
282
283 define shvar
284 V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
285 endef
286
287 define shexport
288 $(call shvar,$(1))=$$(call $(1))
289 export $(call shvar,$(1))
290 endef
291
292 define include_mk
293 $(eval -include $(if $(DUMP),,$(STAGING_DIR)/mk/$(strip $(1))))
294 endef
295
296 # Execute commands under flock
297 # $(1) => The shell expression.
298 # $(2) => The lock name. If not given, the global lock will be used.
299 define locked
300 SHELL= \
301 $(STAGING_DIR_HOST)/bin/flock \
302 $(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
303 -c '$(subst ','\'',$(1))'
304 endef
305
306 # Recursively copy paths into another directory, purge dangling
307 # symlinks before.
308 # $(1) => File glob expression
309 # $(2) => Destination directory
310 define file_copy
311 for src_dir in $(sort $(foreach d,$(wildcard $(1)),$(dir $(d)))); do \
312 ( cd $$src_dir; find -type f -or -type d ) | \
313 ( cd $(2); while :; do \
314 read FILE; \
315 [ -z "$$FILE" ] && break; \
316 [ -L "$$FILE" ] || continue; \
317 echo "Removing symlink $(2)/$$FILE"; \
318 rm -f "$$FILE"; \
319 done; ); \
320 done; \
321 $(CP) $(1) $(2)
322 endef
323
324 # file extension
325 ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
326
327 all:
328 FORCE: ;
329 .PHONY: FORCE
330
331 val.%:
332 @$(if $(filter undefined,$(origin $*)),\
333 echo "$* undefined" >&2, \
334 echo '$(subst ','"'"',$($*))' \
335 )
336
337 var.%:
338 @$(if $(filter undefined,$(origin $*)),\
339 echo "$* undefined" >&2, \
340 echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
341 )
342
343 endif #__rules_inc