56129917e453f32b7f7e5305435dd6fabbdfcd49
[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
77 DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
78 BIN_DIR:=$(TOPDIR)/bin/$(BOARD)
79 INCLUDE_DIR:=$(TOPDIR)/include
80 SCRIPT_DIR:=$(TOPDIR)/scripts
81 BUILD_DIR_BASE:=$(TOPDIR)/build_dir
82 BUILD_DIR_HOST:=$(BUILD_DIR_BASE)/host
83 STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
84 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
85 GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
86 LIBC:=$(call qstrip,$(CONFIG_LIBC))
87 LIBCV:=$(call qstrip,$(CONFIG_LIBC_VERSION))
88 REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))
89 GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux
90 DIR_SUFFIX:=_$(LIBC)-$(LIBCV)$(if $(CONFIG_arm),_eabi)
91 BIN_DIR:=$(BIN_DIR)$(if $(CONFIG_USE_UCLIBC),,-$(LIBC))
92 BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
93 STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
94 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
95 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
96 PACKAGE_DIR:=$(BIN_DIR)/packages
97 else
98 ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
99 GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
100 else
101 GNU_TARGET_NAME=$(shell gcc -dumpmachine)
102 endif
103 REAL_GNU_TARGET_NAME=$(GNU_TARGET_NAME)
104 BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
105 STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
106 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(GNU_TARGET_NAME)
107 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(GNU_TARGET_NAME)
108 PACKAGE_DIR:=$(BIN_DIR)/packages
109 endif
110 STAMP_DIR:=$(BUILD_DIR)/stamp
111 STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
112 TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
113 TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
114 STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
115 BUILD_LOG_DIR:=$(TOPDIR)/logs
116 PKG_INFO_DIR := $(STAGING_DIR)/pkginfo
117
118 TARGET_PATH:=$(STAGING_DIR_HOST)/bin:$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
119 TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3)
120 TARGET_CXXFLAGS = $(TARGET_CFLAGS)
121 TARGET_ASFLAGS = $(TARGET_CFLAGS) $(TARGET_ASFLAGS_OVERRIDE)
122 TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
123 TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
124 ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
125 LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
126 LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
127 LIBGCC_A=$(realpath $(lastword $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a)))
128 else
129 LIBGCC_A=$(lastword $(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a))
130 LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
131 endif
132 LIBRPC=-lrpc
133 LIBRPC_DEPENDS=+librpc
134
135 ifneq ($(findstring $(ARCH) , mips64 x86_64 ),)
136 LIB_SUFFIX:=64
137 endif
138
139 ifndef DUMP
140 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
141 -include $(TOOLCHAIN_DIR)/info.mk
142 export GCC_HONOUR_COPTS:=0
143 TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
144 TARGET_CFLAGS+= -fhonour-copts $(if $(CONFIG_GCC_VERSION_4_4)$(CONFIG_GCC_VERSION_4_5),,-Wno-error=unused-but-set-variable)
145 TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include -I$(TOOLCHAIN_DIR)/include
146 TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
147 TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
148 else
149 ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
150 TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
151 TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
152 TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
153 TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
154 TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
155 ifneq ($(TOOLCHAIN_BIN_DIRS),)
156 TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
157 endif
158 ifneq ($(TOOLCHAIN_INC_DIRS),)
159 TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
160 endif
161 ifneq ($(TOOLCHAIN_LIB_DIRS),)
162 TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
163 endif
164 TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
165 endif
166 endif
167 endif
168 TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(TARGET_PATH)
169
170 ifeq ($(CONFIG_SOFT_FLOAT),y)
171 SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
172 TARGET_CFLAGS+= -msoft-float
173 else
174 SOFT_FLOAT_CONFIG_OPTION:=
175 endif
176
177 export PATH:=$(TARGET_PATH)
178 export STAGING_DIR
179 export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
180
181 PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
182
183 export PKG_CONFIG
184
185 HOSTCC:=gcc
186 HOSTCXX:=g++
187 HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include
188 HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
189 HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib
190
191 TARGET_CC:=$(TARGET_CROSS)gcc
192 TARGET_AR:=$(TARGET_CROSS)ar
193 TARGET_RANLIB:=$(TARGET_CROSS)ranlib
194 TARGET_CXX:=$(if $(CONFIG_INSTALL_LIBSTDCPP),$(TARGET_CROSS)g++,no)
195 KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
196 SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
197 CP:=cp -fpR
198 LN:=ln -sf
199
200 INSTALL_BIN:=install -m0755
201 INSTALL_DIR:=install -d -m0755
202 INSTALL_DATA:=install -m0644
203 INSTALL_CONF:=install -m0600
204
205 TARGET_CC_NOCACHE:=$(TARGET_CC)
206 TARGET_CXX_NOCACHE:=$(TARGET_CXX)
207 HOSTCC_NOCACHE:=$(HOSTCC)
208 HOSTCXX_NOCACHE:=$(HOSTCXX)
209 export TARGET_CC_NOCACHE
210 export TARGET_CXX_NOCACHE
211 export HOSTCC_NOCACHE
212
213 ifneq ($(CONFIG_CCACHE),)
214 TARGET_CC:= ccache_cc
215 TARGET_CXX:= ccache_cxx
216 HOSTCC:= ccache $(HOSTCC)
217 HOSTCXX:= ccache $(HOSTCXX)
218 endif
219
220 TARGET_CONFIGURE_OPTS = \
221 AR=$(TARGET_CROSS)ar \
222 AS="$(TARGET_CC) -c $(TARGET_ASFLAGS)" \
223 LD=$(TARGET_CROSS)ld \
224 NM=$(TARGET_CROSS)nm \
225 CC="$(TARGET_CC)" \
226 GCC="$(TARGET_CC)" \
227 CXX="$(TARGET_CXX)" \
228 RANLIB=$(TARGET_CROSS)ranlib \
229 STRIP=$(TARGET_CROSS)strip \
230 OBJCOPY=$(TARGET_CROSS)objcopy \
231 OBJDUMP=$(TARGET_CROSS)objdump \
232 SIZE=$(TARGET_CROSS)size
233
234 # strip an entire directory
235 ifneq ($(CONFIG_NO_STRIP),)
236 RSTRIP:=:
237 STRIP:=:
238 else
239 ifneq ($(CONFIG_USE_STRIP),)
240 STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
241 else
242 ifneq ($(CONFIG_USE_SSTRIP),)
243 STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
244 endif
245 endif
246 RSTRIP:= \
247 export CROSS="$(TARGET_CROSS)" \
248 $(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
249 $(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
250 NM="$(TARGET_CROSS)nm" \
251 STRIP="$(STRIP)" \
252 STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
253 $(SCRIPT_DIR)/rstrip.sh
254 endif
255
256 ifeq ($(CONFIG_ENABLE_LOCALE),true)
257 DISABLE_NLS:=--enable-nls
258 else
259 DISABLE_NLS:=--disable-nls
260 endif
261
262 ifeq ($(CONFIG_IPV6),y)
263 DISABLE_IPV6:=
264 else
265 DISABLE_IPV6:=--disable-ipv6
266 endif
267
268 ifeq ($(CONFIG_TAR_VERBOSITY),y)
269 TAR_OPTIONS:=-xvf -
270 else
271 TAR_OPTIONS:=-xf -
272 endif
273
274 ifeq ($(CONFIG_BUILD_LOG),y)
275 BUILD_LOG:=1
276 endif
277
278 define shvar
279 V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
280 endef
281
282 define shexport
283 $(call shvar,$(1))=$$(call $(1))
284 export $(call shvar,$(1))
285 endef
286
287 define include_mk
288 $(eval -include $(if $(DUMP),,$(STAGING_DIR)/mk/$(strip $(1))))
289 endef
290
291 # Execute commands under flock
292 # $(1) => The shell expression.
293 # $(2) => The lock name. If not given, the global lock will be used.
294 define locked
295 SHELL= \
296 $(STAGING_DIR_HOST)/bin/flock \
297 $(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
298 -c '$(subst ','\'',$(1))'
299 endef
300
301 # Recursively copy paths into another directory, purge dangling
302 # symlinks before.
303 # $(1) => File glob expression
304 # $(2) => Destination directory
305 define file_copy
306 for src_dir in $(sort $(foreach d,$(wildcard $(1)),$(dir $(d)))); do \
307 ( cd $$src_dir; find -type f -or -type d ) | \
308 ( cd $(2); while :; do \
309 read FILE; \
310 [ -z "$$FILE" ] && break; \
311 [ -L "$$FILE" ] || continue; \
312 echo "Removing symlink $(2)/$$FILE"; \
313 rm -f "$$FILE"; \
314 done; ); \
315 done; \
316 $(CP) $(1) $(2)
317 endef
318
319 # file extension
320 ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
321
322 all:
323 FORCE: ;
324 .PHONY: FORCE
325
326 val.%:
327 @$(if $(filter undefined,$(origin $*)),\
328 echo "$* undefined" >&2, \
329 echo '$(subst ','"'"',$($*))' \
330 )
331
332 var.%:
333 @$(if $(filter undefined,$(origin $*)),\
334 echo "$* undefined" >&2, \
335 echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
336 )
337
338 endif #__rules_inc