build: unify target independent optimization options
[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 $(TOPDIR)/include/verbose.mk
16
17 export TMP_DIR:=$(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 export EXTRA_OPTIMIZATION:=$(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION))
42 TARGET_SUFFIX=$(call qstrip,$(CONFIG_TARGET_SUFFIX))
43 BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
44 SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
45 export SHELL:=/usr/bin/env bash
46
47 OPTIMIZE_FOR_CPU=$(subst i386,i486,$(ARCH))
48
49 ifeq ($(ARCH),powerpc)
50 FPIC:=-fPIC
51 else
52 FPIC:=-fpic
53 endif
54
55 HOST_FPIC:=-fPIC
56
57 ARCH_SUFFIX:=
58 GCC_ARCH:=
59
60 ifneq ($(filter -march=armv%,$(TARGET_OPTIMIZATION)),)
61 ARCH_SUFFIX:=_$(patsubst -march=arm%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
62 GCC_ARCH:=$(patsubst -march=%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
63 endif
64 ifneq ($(filter -mips%r2,$(TARGET_OPTIMIZATION)),)
65 ARCH_SUFFIX:=_r2
66 endif
67 ifneq ($(filter -mdsp,$(TARGET_OPTIMIZATION)),)
68 ARCH_SUFFIX:=$(ARCH_SUFFIX)_dsp
69 endif
70 ifneq ($(filter -mdspr2,$(TARGET_OPTIMIZATION)),)
71 ARCH_SUFFIX:=$(ARCH_SUFFIX)_dspr2
72 endif
73 ifdef CONFIG_USE_MIPS16
74 TARGET_OPTIMIZATION+= -minterlink-mips16 -mips16
75 endif
76 ifneq ($(findstring -mips16,$(TARGET_OPTIMIZATION)),)
77 TARGET_ASFLAGS_OVERRIDE:=-mno-mips16
78 ARCH_SUFFIX:= $(ARCH_SUFFIX)_m16
79 endif
80 ifdef CONFIG_HAS_SPE_FPU
81 TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
82 endif
83 ifdef CONFIG_MIPS64_ABI
84 ifneq ($(CONFIG_MIPS64_ABI_O32),y)
85 ARCH_SUFFIX:=$(ARCH_SUFFIX)_$(call qstrip,$(CONFIG_MIPS64_ABI))
86 endif
87 endif
88
89 DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
90 BIN_DIR:=$(TOPDIR)/bin/$(BOARD)
91 INCLUDE_DIR:=$(TOPDIR)/include
92 SCRIPT_DIR:=$(TOPDIR)/scripts
93 BUILD_DIR_BASE:=$(TOPDIR)/build_dir
94 BUILD_DIR_HOST:=$(BUILD_DIR_BASE)/host
95 STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
96 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
97 GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
98 LIBC:=$(call qstrip,$(CONFIG_LIBC))
99 LIBCV:=$(call qstrip,$(CONFIG_LIBC_VERSION))
100 REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))
101 GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux
102 DIR_SUFFIX:=_$(LIBC)-$(LIBCV)$(if $(CONFIG_arm),_eabi)
103 BIN_DIR:=$(BIN_DIR)$(if $(CONFIG_USE_UCLIBC),,-$(LIBC))
104 BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
105 STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
106 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
107 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
108 PACKAGE_DIR:=$(BIN_DIR)/packages
109 else
110 ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
111 GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
112 else
113 GNU_TARGET_NAME=$(shell gcc -dumpmachine)
114 endif
115 REAL_GNU_TARGET_NAME=$(GNU_TARGET_NAME)
116 BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
117 STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
118 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(GNU_TARGET_NAME)
119 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(GNU_TARGET_NAME)
120 PACKAGE_DIR:=$(BIN_DIR)/packages
121 endif
122 STAMP_DIR:=$(BUILD_DIR)/stamp
123 STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
124 TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
125 TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
126 STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
127 BUILD_LOG_DIR:=$(TOPDIR)/logs
128 PKG_INFO_DIR := $(STAGING_DIR)/pkginfo
129
130 TARGET_PATH:=$(STAGING_DIR_HOST)/bin:$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
131 TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3) $(EXTRA_OPTIMIZATION)
132 TARGET_CXXFLAGS = $(TARGET_CFLAGS)
133 TARGET_ASFLAGS = $(TARGET_CFLAGS) $(TARGET_ASFLAGS_OVERRIDE)
134 TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
135 TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
136 ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
137 LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
138 LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
139 LIBGCC_A=$(realpath $(lastword $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a)))
140 else
141 LIBGCC_A=$(lastword $(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a))
142 LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
143 endif
144 LIBRPC=-lrpc
145 LIBRPC_DEPENDS=+librpc
146
147 ifeq ($(CONFIG_ARCH_64BIT),y)
148 LIB_SUFFIX:=64
149 endif
150
151 ifndef DUMP
152 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
153 -include $(TOOLCHAIN_DIR)/info.mk
154 export GCC_HONOUR_COPTS:=0
155 TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
156 TARGET_CFLAGS+= -fhonour-copts $(if $(CONFIG_GCC_VERSION_4_4)$(CONFIG_GCC_VERSION_4_5),,-Wno-error=unused-but-set-variable)
157 TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include -I$(TOOLCHAIN_DIR)/include
158 TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
159 TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
160 else
161 ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
162 TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
163 TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
164 TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
165 TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
166 TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
167 ifneq ($(TOOLCHAIN_BIN_DIRS),)
168 TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
169 endif
170 ifneq ($(TOOLCHAIN_INC_DIRS),)
171 TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
172 endif
173 ifneq ($(TOOLCHAIN_LIB_DIRS),)
174 TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
175 endif
176 TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
177 endif
178 endif
179 endif
180 TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(TARGET_PATH)
181
182 ifeq ($(CONFIG_SOFT_FLOAT),y)
183 SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
184 TARGET_CFLAGS+= -msoft-float
185 else
186 SOFT_FLOAT_CONFIG_OPTION:=
187 endif
188
189 export PATH:=$(TARGET_PATH)
190 export STAGING_DIR
191 export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
192
193 PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
194
195 export PKG_CONFIG
196
197 HOSTCC:=gcc
198 HOSTCXX:=g++
199 HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include
200 HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
201 HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib
202
203 TARGET_CC:=$(TARGET_CROSS)gcc
204 TARGET_AR:=$(TARGET_CROSS)ar
205 TARGET_RANLIB:=$(TARGET_CROSS)ranlib
206 TARGET_CXX:=$(TARGET_CROSS)g++
207 KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
208 SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
209 CP:=cp -fpR
210 LN:=ln -sf
211 XARGS:=xargs -r
212
213 INSTALL_BIN:=install -m0755
214 INSTALL_DIR:=install -d -m0755
215 INSTALL_DATA:=install -m0644
216 INSTALL_CONF:=install -m0600
217
218 TARGET_CC_NOCACHE:=$(TARGET_CC)
219 TARGET_CXX_NOCACHE:=$(TARGET_CXX)
220 HOSTCC_NOCACHE:=$(HOSTCC)
221 HOSTCXX_NOCACHE:=$(HOSTCXX)
222 export TARGET_CC_NOCACHE
223 export TARGET_CXX_NOCACHE
224 export HOSTCC_NOCACHE
225
226 ifneq ($(CONFIG_CCACHE),)
227 TARGET_CC:= ccache_cc
228 TARGET_CXX:= ccache_cxx
229 HOSTCC:= ccache $(HOSTCC)
230 HOSTCXX:= ccache $(HOSTCXX)
231 endif
232
233 TARGET_CONFIGURE_OPTS = \
234 AR=$(TARGET_CROSS)ar \
235 AS="$(TARGET_CC) -c $(TARGET_ASFLAGS)" \
236 LD=$(TARGET_CROSS)ld \
237 NM=$(TARGET_CROSS)nm \
238 CC="$(TARGET_CC)" \
239 GCC="$(TARGET_CC)" \
240 CXX="$(TARGET_CXX)" \
241 RANLIB=$(TARGET_CROSS)ranlib \
242 STRIP=$(TARGET_CROSS)strip \
243 OBJCOPY=$(TARGET_CROSS)objcopy \
244 OBJDUMP=$(TARGET_CROSS)objdump \
245 SIZE=$(TARGET_CROSS)size
246
247 # strip an entire directory
248 ifneq ($(CONFIG_NO_STRIP),)
249 RSTRIP:=:
250 STRIP:=:
251 else
252 ifneq ($(CONFIG_USE_STRIP),)
253 STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
254 else
255 ifneq ($(CONFIG_USE_SSTRIP),)
256 STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
257 endif
258 endif
259 RSTRIP:= \
260 export CROSS="$(TARGET_CROSS)" \
261 $(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
262 $(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
263 NM="$(TARGET_CROSS)nm" \
264 STRIP="$(STRIP)" \
265 STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
266 $(SCRIPT_DIR)/rstrip.sh
267 endif
268
269 ifeq ($(CONFIG_ENABLE_LOCALE),true)
270 DISABLE_NLS:=--enable-nls
271 else
272 DISABLE_NLS:=--disable-nls
273 endif
274
275 ifeq ($(CONFIG_IPV6),y)
276 DISABLE_IPV6:=
277 else
278 DISABLE_IPV6:=--disable-ipv6
279 endif
280
281 ifeq ($(CONFIG_TAR_VERBOSITY),y)
282 TAR_OPTIONS:=-xvf -
283 else
284 TAR_OPTIONS:=-xf -
285 endif
286
287 ifeq ($(CONFIG_BUILD_LOG),y)
288 BUILD_LOG:=1
289 endif
290
291 define shvar
292 V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
293 endef
294
295 define shexport
296 $(call shvar,$(1))=$$(call $(1))
297 export $(call shvar,$(1))
298 endef
299
300 define include_mk
301 $(eval -include $(if $(DUMP),,$(STAGING_DIR)/mk/$(strip $(1))))
302 endef
303
304 # Execute commands under flock
305 # $(1) => The shell expression.
306 # $(2) => The lock name. If not given, the global lock will be used.
307 define locked
308 SHELL= \
309 $(STAGING_DIR_HOST)/bin/flock \
310 $(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
311 -c '$(subst ','\'',$(1))'
312 endef
313
314 # Recursively copy paths into another directory, purge dangling
315 # symlinks before.
316 # $(1) => File glob expression
317 # $(2) => Destination directory
318 define file_copy
319 for src_dir in $(sort $(foreach d,$(wildcard $(1)),$(dir $(d)))); do \
320 ( cd $$src_dir; find -type f -or -type d ) | \
321 ( cd $(2); while :; do \
322 read FILE; \
323 [ -z "$$FILE" ] && break; \
324 [ -L "$$FILE" ] || continue; \
325 echo "Removing symlink $(2)/$$FILE"; \
326 rm -f "$$FILE"; \
327 done; ); \
328 done; \
329 $(CP) $(1) $(2)
330 endef
331
332 # file extension
333 ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
334
335 all:
336 FORCE: ;
337 .PHONY: FORCE
338
339 val.%:
340 @$(if $(filter undefined,$(origin $*)),\
341 echo "$* undefined" >&2, \
342 echo '$(subst ','"'"',$($*))' \
343 )
344
345 var.%:
346 @$(if $(filter undefined,$(origin $*)),\
347 echo "$* undefined" >&2, \
348 echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
349 )
350
351 endif #__rules_inc