[buildroot] do not pass optimization flags in HOST_CPPFLAGS (#12153)
[openwrt/svn-archive/archive.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 $(CONFIG_arm),_eabi)
84 BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
85 STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
86 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
87 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
88 PACKAGE_DIR:=$(BIN_DIR)/packages
89 else
90 ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
91 GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
92 else
93 GNU_TARGET_NAME=$(shell gcc -dumpmachine)
94 endif
95 REAL_GNU_TARGET_NAME=$(GNU_TARGET_NAME)
96 BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
97 STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
98 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(GNU_TARGET_NAME)
99 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(GNU_TARGET_NAME)
100 PACKAGE_DIR:=$(BIN_DIR)/packages
101 endif
102 STAMP_DIR:=$(BUILD_DIR)/stamp
103 STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
104 TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
105 TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
106 STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
107 BUILD_LOG_DIR:=$(TOPDIR)/logs
108
109 TARGET_PATH:=$(STAGING_DIR_HOST)/bin:$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
110 TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3)
111 TARGET_CXXFLAGS = $(TARGET_CFLAGS)
112 TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
113 TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
114 ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
115 LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
116 LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
117 LIBGCC_A=$(realpath $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a))
118 else
119 LIBGCC_A=$(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a)
120 LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
121 endif
122 LIBRPC=-lrpc
123 LIBRPC_DEPENDS=+librpc
124
125 ifneq ($(findstring $(ARCH) , mips64 x86_64 ),)
126 LIB_SUFFIX:=64
127 endif
128
129 ifndef DUMP
130 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
131 -include $(TOOLCHAIN_DIR)/info.mk
132 export GCC_HONOUR_COPTS:=0
133 TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
134 TARGET_CFLAGS+= -fhonour-copts $(if $(CONFIG_GCC_VERSION_4_4)$(CONFIG_GCC_VERSION_4_5),,-Wno-error=unused-but-set-variable)
135 TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include -I$(TOOLCHAIN_DIR)/include
136 TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
137 TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
138 else
139 ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
140 TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
141 TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
142 TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
143 TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
144 TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
145 ifneq ($(TOOLCHAIN_BIN_DIRS),)
146 TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
147 endif
148 ifneq ($(TOOLCHAIN_INC_DIRS),)
149 TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
150 endif
151 ifneq ($(TOOLCHAIN_LIB_DIRS),)
152 TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
153 endif
154 TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
155 endif
156 endif
157 endif
158 TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(TARGET_PATH)
159
160 ifeq ($(CONFIG_SOFT_FLOAT),y)
161 SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
162 TARGET_CFLAGS+= -msoft-float
163 else
164 SOFT_FLOAT_CONFIG_OPTION:=
165 endif
166
167 export PATH:=$(TARGET_PATH)
168 export STAGING_DIR
169 export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
170
171 PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
172
173 export PKG_CONFIG
174
175 HOSTCC:=gcc
176 HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include
177 HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
178 HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib
179
180 TARGET_CC:=$(TARGET_CROSS)gcc
181 TARGET_CXX:=$(if $(CONFIG_INSTALL_LIBSTDCPP),$(TARGET_CROSS)g++,no)
182 KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
183 SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
184 CP:=cp -fpR
185 LN:=ln -sf
186
187 INSTALL_BIN:=install -m0755
188 INSTALL_DIR:=install -d -m0755
189 INSTALL_DATA:=install -m0644
190 INSTALL_CONF:=install -m0600
191
192 TARGET_CC_NOCACHE:=$(TARGET_CC)
193 TARGET_CXX_NOCACHE:=$(TARGET_CXX)
194 HOSTCC_NOCACHE:=$(HOSTCC)
195 export TARGET_CC_NOCACHE
196 export TARGET_CXX_NOCACHE
197 export HOSTCC_NOCACHE
198
199 ifneq ($(CONFIG_CCACHE),)
200 TARGET_CC:= ccache_cc
201 TARGET_CXX:= ccache_cxx
202 HOSTCC:= ccache $(HOSTCC)
203 endif
204
205 TARGET_CONFIGURE_OPTS = \
206 AR=$(TARGET_CROSS)ar \
207 AS="$(TARGET_CC) -c $(TARGET_CFLAGS)" \
208 LD=$(TARGET_CROSS)ld \
209 NM=$(TARGET_CROSS)nm \
210 CC="$(TARGET_CC)" \
211 GCC="$(TARGET_CC)" \
212 CXX="$(TARGET_CXX)" \
213 RANLIB=$(TARGET_CROSS)ranlib \
214 STRIP=$(TARGET_CROSS)strip \
215 OBJCOPY=$(TARGET_CROSS)objcopy \
216 OBJDUMP=$(TARGET_CROSS)objdump \
217 SIZE=$(TARGET_CROSS)size
218
219 # strip an entire directory
220 ifneq ($(CONFIG_NO_STRIP),)
221 RSTRIP:=:
222 STRIP:=:
223 else
224 ifneq ($(CONFIG_USE_STRIP),)
225 STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
226 else
227 ifneq ($(CONFIG_USE_SSTRIP),)
228 STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
229 endif
230 endif
231 RSTRIP:= \
232 export CROSS="$(TARGET_CROSS)" \
233 $(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
234 $(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
235 NM="$(TARGET_CROSS)nm" \
236 STRIP="$(STRIP)" \
237 STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
238 $(SCRIPT_DIR)/rstrip.sh
239 endif
240
241 ifeq ($(CONFIG_ENABLE_LOCALE),true)
242 DISABLE_NLS:=--enable-nls
243 else
244 DISABLE_NLS:=--disable-nls
245 endif
246
247 ifeq ($(CONFIG_IPV6),y)
248 DISABLE_IPV6:=
249 else
250 DISABLE_IPV6:=--disable-ipv6
251 endif
252
253 ifeq ($(CONFIG_TAR_VERBOSITY),y)
254 TAR_OPTIONS:=-xvf -
255 else
256 TAR_OPTIONS:=-xf -
257 endif
258
259 ifeq ($(CONFIG_BUILD_LOG),y)
260 BUILD_LOG:=1
261 endif
262
263 define shvar
264 V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
265 endef
266
267 define shexport
268 $(call shvar,$(1))=$$(call $(1))
269 export $(call shvar,$(1))
270 endef
271
272 define include_mk
273 $(eval -include $(if $(DUMP),,$(STAGING_DIR)/mk/$(strip $(1))))
274 endef
275
276 # Execute commands under flock
277 # $(1) => The shell expression.
278 # $(2) => The lock name. If not given, the global lock will be used.
279 define locked
280 SHELL= \
281 $(STAGING_DIR_HOST)/bin/flock \
282 $(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
283 -c '$(subst ','\'',$(1))'
284 endef
285
286 # file extension
287 ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
288
289 all:
290 FORCE: ;
291 .PHONY: FORCE
292
293 val.%:
294 @$(if $(filter undefined,$(origin $*)),\
295 echo "$* undefined" >&2, \
296 echo '$(subst ','"'"',$($*))' \
297 )
298
299 var.%:
300 @$(if $(filter undefined,$(origin $*)),\
301 echo "$* undefined" >&2, \
302 echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
303 )
304
305 endif #__rules_inc