1ded3ba85510ba7af650c5d8bc915071d3b5eec1
[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%,$(TARGET_OPTIMIZATION)))
62 endif
63 ifneq ($(findstring -mips32r2,$(TARGET_OPTIMIZATION)),)
64 ARCH_SUFFIX:=_r2
65 endif
66 ifdef CONFIG_HAS_SPE_FPU
67 TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
68 endif
69
70 DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
71 BIN_DIR:=$(TOPDIR)/bin/$(BOARD)
72 INCLUDE_DIR:=$(TOPDIR)/include
73 SCRIPT_DIR:=$(TOPDIR)/scripts
74 BUILD_DIR_BASE:=$(TOPDIR)/build_dir
75 BUILD_DIR_HOST:=$(BUILD_DIR_BASE)/host
76 STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
77 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
78 GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
79 LIBC:=$(call qstrip,$(CONFIG_LIBC))
80 LIBCV:=$(call qstrip,$(CONFIG_LIBC_VERSION))
81 REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))
82 GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux
83 DIR_SUFFIX:=_$(LIBC)-$(LIBCV)$(if $(CONFIG_arm),_eabi)
84 BIN_DIR:=$(BIN_DIR)$(if $(CONFIG_USE_UCLIBC),,-$(LIBC))
85 BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
86 STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
87 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
88 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
89 PACKAGE_DIR:=$(BIN_DIR)/packages
90 else
91 ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
92 GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
93 else
94 GNU_TARGET_NAME=$(shell gcc -dumpmachine)
95 endif
96 REAL_GNU_TARGET_NAME=$(GNU_TARGET_NAME)
97 BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
98 STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
99 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(GNU_TARGET_NAME)
100 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(GNU_TARGET_NAME)
101 PACKAGE_DIR:=$(BIN_DIR)/packages
102 endif
103 STAMP_DIR:=$(BUILD_DIR)/stamp
104 STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
105 TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
106 TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
107 STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
108 BUILD_LOG_DIR:=$(TOPDIR)/logs
109 PKG_INFO_DIR := $(STAGING_DIR)/pkginfo
110
111 TARGET_PATH:=$(STAGING_DIR_HOST)/bin:$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
112 TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3)
113 TARGET_CXXFLAGS = $(TARGET_CFLAGS)
114 TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
115 TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
116 ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
117 LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
118 LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
119 LIBGCC_A=$(realpath $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a))
120 else
121 LIBGCC_A=$(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a)
122 LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
123 endif
124 LIBRPC=-lrpc
125 LIBRPC_DEPENDS=+librpc
126
127 ifneq ($(findstring $(ARCH) , mips64 x86_64 ),)
128 LIB_SUFFIX:=64
129 endif
130
131 ifndef DUMP
132 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
133 -include $(TOOLCHAIN_DIR)/info.mk
134 export GCC_HONOUR_COPTS:=0
135 TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
136 TARGET_CFLAGS+= -fhonour-copts $(if $(CONFIG_GCC_VERSION_4_4)$(CONFIG_GCC_VERSION_4_5),,-Wno-error=unused-but-set-variable)
137 TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include -I$(TOOLCHAIN_DIR)/include
138 TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
139 TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
140 else
141 ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
142 TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
143 TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
144 TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
145 TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
146 TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
147 ifneq ($(TOOLCHAIN_BIN_DIRS),)
148 TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
149 endif
150 ifneq ($(TOOLCHAIN_INC_DIRS),)
151 TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
152 endif
153 ifneq ($(TOOLCHAIN_LIB_DIRS),)
154 TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
155 endif
156 TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
157 endif
158 endif
159 endif
160 TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(TARGET_PATH)
161
162 ifeq ($(CONFIG_SOFT_FLOAT),y)
163 SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
164 TARGET_CFLAGS+= -msoft-float
165 else
166 SOFT_FLOAT_CONFIG_OPTION:=
167 endif
168
169 export PATH:=$(TARGET_PATH)
170 export STAGING_DIR
171 export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
172
173 PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
174
175 export PKG_CONFIG
176
177 HOSTCC:=gcc
178 HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include
179 HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
180 HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib
181
182 TARGET_CC:=$(TARGET_CROSS)gcc
183 TARGET_AR:=$(TARGET_CROSS)ar
184 TARGET_RANLIB:=$(TARGET_CROSS)ranlib
185 TARGET_CXX:=$(if $(CONFIG_INSTALL_LIBSTDCPP),$(TARGET_CROSS)g++,no)
186 KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
187 SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
188 CP:=cp -fpR
189 LN:=ln -sf
190
191 INSTALL_BIN:=install -m0755
192 INSTALL_DIR:=install -d -m0755
193 INSTALL_DATA:=install -m0644
194 INSTALL_CONF:=install -m0600
195
196 TARGET_CC_NOCACHE:=$(TARGET_CC)
197 TARGET_CXX_NOCACHE:=$(TARGET_CXX)
198 HOSTCC_NOCACHE:=$(HOSTCC)
199 export TARGET_CC_NOCACHE
200 export TARGET_CXX_NOCACHE
201 export HOSTCC_NOCACHE
202
203 ifneq ($(CONFIG_CCACHE),)
204 TARGET_CC:= ccache_cc
205 TARGET_CXX:= ccache_cxx
206 HOSTCC:= ccache $(HOSTCC)
207 endif
208
209 TARGET_CONFIGURE_OPTS = \
210 AR=$(TARGET_CROSS)ar \
211 AS="$(TARGET_CC) -c $(TARGET_CFLAGS)" \
212 LD=$(TARGET_CROSS)ld \
213 NM=$(TARGET_CROSS)nm \
214 CC="$(TARGET_CC)" \
215 GCC="$(TARGET_CC)" \
216 CXX="$(TARGET_CXX)" \
217 RANLIB=$(TARGET_CROSS)ranlib \
218 STRIP=$(TARGET_CROSS)strip \
219 OBJCOPY=$(TARGET_CROSS)objcopy \
220 OBJDUMP=$(TARGET_CROSS)objdump \
221 SIZE=$(TARGET_CROSS)size
222
223 # strip an entire directory
224 ifneq ($(CONFIG_NO_STRIP),)
225 RSTRIP:=:
226 STRIP:=:
227 else
228 ifneq ($(CONFIG_USE_STRIP),)
229 STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
230 else
231 ifneq ($(CONFIG_USE_SSTRIP),)
232 STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
233 endif
234 endif
235 RSTRIP:= \
236 export CROSS="$(TARGET_CROSS)" \
237 $(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
238 $(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
239 NM="$(TARGET_CROSS)nm" \
240 STRIP="$(STRIP)" \
241 STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
242 $(SCRIPT_DIR)/rstrip.sh
243 endif
244
245 ifeq ($(CONFIG_ENABLE_LOCALE),true)
246 DISABLE_NLS:=--enable-nls
247 else
248 DISABLE_NLS:=--disable-nls
249 endif
250
251 ifeq ($(CONFIG_IPV6),y)
252 DISABLE_IPV6:=
253 else
254 DISABLE_IPV6:=--disable-ipv6
255 endif
256
257 ifeq ($(CONFIG_TAR_VERBOSITY),y)
258 TAR_OPTIONS:=-xvf -
259 else
260 TAR_OPTIONS:=-xf -
261 endif
262
263 ifeq ($(CONFIG_BUILD_LOG),y)
264 BUILD_LOG:=1
265 endif
266
267 define shvar
268 V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
269 endef
270
271 define shexport
272 $(call shvar,$(1))=$$(call $(1))
273 export $(call shvar,$(1))
274 endef
275
276 define include_mk
277 $(eval -include $(if $(DUMP),,$(STAGING_DIR)/mk/$(strip $(1))))
278 endef
279
280 # Execute commands under flock
281 # $(1) => The shell expression.
282 # $(2) => The lock name. If not given, the global lock will be used.
283 define locked
284 SHELL= \
285 $(STAGING_DIR_HOST)/bin/flock \
286 $(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
287 -c '$(subst ','\'',$(1))'
288 endef
289
290 # Recursively copy paths into another directory, purge dangling
291 # symlinks before.
292 # $(1) => File glob expression
293 # $(2) => Destination directory
294 define file_copy
295 for src_dir in $(sort $(foreach d,$(wildcard $(1)),$(dir $(d)))); do \
296 ( cd $$src_dir; find -type f -or -type d ) | \
297 ( cd $(2); while :; do \
298 read FILE; \
299 [ -z "$$FILE" ] && break; \
300 [ -L "$$FILE" ] || continue; \
301 echo "Removing symlink $(2)/$$FILE"; \
302 rm -f "$$FILE"; \
303 done; ); \
304 done; \
305 $(CP) $(1) $(2)
306 endef
307
308 # file extension
309 ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
310
311 all:
312 FORCE: ;
313 .PHONY: FORCE
314
315 val.%:
316 @$(if $(filter undefined,$(origin $*)),\
317 echo "$* undefined" >&2, \
318 echo '$(subst ','"'"',$($*))' \
319 )
320
321 var.%:
322 @$(if $(filter undefined,$(origin $*)),\
323 echo "$* undefined" >&2, \
324 echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
325 )
326
327 endif #__rules_inc