kernel: remove module checks for 3.15/3.16/3.17
[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 $(TOPDIR)/include/verbose.mk
16
17 export TMP_DIR:=$(TOPDIR)/tmp
18
19 qstrip=$(strip $(subst ",,$(1)))
20 #"))
21
22 empty:=
23 space:= $(empty) $(empty)
24 comma:=,
25 merge=$(subst $(space),,$(1))
26 confvar=$(call merge,$(foreach v,$(1),$(if $($(v)),y,n)))
27 strip_last=$(patsubst %.$(lastword $(subst .,$(space),$(1))),%,$(1))
28
29 define sep
30
31 endef
32
33 define newline
34
35
36 endef
37
38 _SINGLE=export MAKEFLAGS=$(space);
39 CFLAGS:=
40 ARCH:=$(subst i486,i386,$(subst i586,i386,$(subst i686,i386,$(call qstrip,$(CONFIG_ARCH)))))
41 ARCH_PACKAGES:=$(call qstrip,$(CONFIG_TARGET_ARCH_PACKAGES))
42 BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD))
43 TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
44 export EXTRA_OPTIMIZATION:=$(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION))
45 TARGET_SUFFIX=$(call qstrip,$(CONFIG_TARGET_SUFFIX))
46 BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
47 SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
48 export SHELL:=/usr/bin/env bash
49
50 OPTIMIZE_FOR_CPU=$(subst i386,i486,$(ARCH))
51
52 ifeq ($(ARCH),powerpc)
53   FPIC:=-fPIC
54 else
55   FPIC:=-fpic
56 endif
57
58 HOST_FPIC:=-fPIC
59
60 ARCH_SUFFIX:=$(call qstrip,$(CONFIG_CPU_TYPE))
61 GCC_ARCH:=
62
63 ifneq ($(ARCH_SUFFIX),)
64   ARCH_SUFFIX:=_$(ARCH_SUFFIX)
65 endif
66 ifneq ($(filter -march=armv%,$(TARGET_OPTIMIZATION)),)
67   GCC_ARCH:=$(patsubst -march=%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
68 endif
69 ifdef CONFIG_HAS_SPE_FPU
70   TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
71 endif
72 ifdef CONFIG_MIPS64_ABI
73   ifneq ($(CONFIG_MIPS64_ABI_O32),y)
74      ARCH_SUFFIX:=$(ARCH_SUFFIX)_$(call qstrip,$(CONFIG_MIPS64_ABI))
75   endif
76 endif
77
78 DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
79 BIN_DIR:=$(if $(call qstrip,$(CONFIG_BINARY_FOLDER)),$(call qstrip,$(CONFIG_BINARY_FOLDER)),$(TOPDIR)/bin/$(BOARD))
80 INCLUDE_DIR:=$(TOPDIR)/include
81 SCRIPT_DIR:=$(TOPDIR)/scripts
82 BUILD_DIR_BASE:=$(TOPDIR)/build_dir
83 BUILD_DIR_HOST:=$(BUILD_DIR_BASE)/host
84 STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
85 ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
86   GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
87   LIBC:=$(call qstrip,$(CONFIG_LIBC))
88   LIBCV:=$(call qstrip,$(CONFIG_LIBC_VERSION))
89   REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))
90   GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux
91   DIR_SUFFIX:=_$(LIBC)-$(LIBCV)$(if $(CONFIG_arm),_eabi)
92   BIN_DIR:=$(BIN_DIR)$(if $(CONFIG_USE_UCLIBC),,-$(LIBC))
93   TARGET_DIR_NAME = target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
94   TOOLCHAIN_DIR_NAME = toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
95 else
96   ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
97     GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
98   else
99     GNU_TARGET_NAME=$(shell gcc -dumpmachine)
100   endif
101   REAL_GNU_TARGET_NAME=$(GNU_TARGET_NAME)
102   TARGET_DIR_NAME:=target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
103   TOOLCHAIN_DIR_NAME:=toolchain-$(GNU_TARGET_NAME)
104 endif
105
106 PACKAGE_DIR:=$(BIN_DIR)/packages
107 BUILD_DIR:=$(BUILD_DIR_BASE)/$(TARGET_DIR_NAME)
108 STAGING_DIR:=$(TOPDIR)/staging_dir/$(TARGET_DIR_NAME)
109 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/$(TOOLCHAIN_DIR_NAME)
110 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/$(TOOLCHAIN_DIR_NAME)
111 STAMP_DIR:=$(BUILD_DIR)/stamp
112 STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
113 TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
114 TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
115 STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
116 BUILD_LOG_DIR:=$(TOPDIR)/logs
117 PKG_INFO_DIR := $(STAGING_DIR)/pkginfo
118
119 TARGET_PATH:=$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
120 TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3) $(EXTRA_OPTIMIZATION)
121 TARGET_CXXFLAGS = $(TARGET_CFLAGS)
122 TARGET_ASFLAGS_DEFAULT = $(TARGET_CFLAGS)
123 TARGET_ASFLAGS = $(TARGET_ASFLAGS_DEFAULT)
124 TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
125 TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
126 ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
127 LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
128 LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
129 LIBGCC_A=$(realpath $(lastword $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a)))
130 else
131 LIBGCC_A=$(lastword $(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a))
132 LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
133 endif
134 LIBRPC=-lrpc
135 LIBRPC_DEPENDS=+librpc
136
137 ifeq ($(CONFIG_ARCH_64BIT),y)
138   LIB_SUFFIX:=64
139 endif
140
141 ifndef DUMP
142   ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
143     -include $(TOOLCHAIN_DIR)/info.mk
144     export GCC_HONOUR_COPTS:=0
145     TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
146     TARGET_CFLAGS+= -fhonour-copts $(if $(CONFIG_GCC_VERSION_4_4)$(CONFIG_GCC_VERSION_4_5),,-Wno-error=unused-but-set-variable)
147     TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include -I$(TOOLCHAIN_DIR)/include
148     TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
149     TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
150   else
151     ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
152       TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
153       TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
154       TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
155       TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
156       TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
157       ifneq ($(TOOLCHAIN_BIN_DIRS),)
158         TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
159       endif
160       ifneq ($(TOOLCHAIN_INC_DIRS),)
161         TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
162       endif
163       ifneq ($(TOOLCHAIN_LIB_DIRS),)
164         TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
165       endif
166       TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
167     endif
168   endif
169 endif
170 TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(TARGET_PATH)
171
172 ifeq ($(CONFIG_SOFT_FLOAT),y)
173   SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
174   ifeq ($(CONFIG_arm),y)
175     TARGET_CFLAGS+= -mfloat-abi=soft
176   else
177     TARGET_CFLAGS+= -msoft-float
178   endif
179 else
180   SOFT_FLOAT_CONFIG_OPTION:=
181   ifeq ($(CONFIG_arm),y)
182     TARGET_CFLAGS+= -mfloat-abi=hard
183   endif
184 endif
185
186 export PATH:=$(TARGET_PATH)
187 export STAGING_DIR
188 export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
189
190 PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
191
192 export PKG_CONFIG
193
194 HOSTCC:=gcc
195 HOSTCXX:=g++
196 HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include -I$(STAGING_DIR_HOST)/usr/include
197 HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
198 HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib -L$(STAGING_DIR_HOST)/usr/lib
199
200 ifeq ($(CONFIG_GCC_VERSION_4_4)$(CONFIG_GCC_VERSION_4_6)$(CONFIG_EXTERNAL_TOOLCHAIN),)
201   TARGET_AR:=$(TARGET_CROSS)gcc-ar
202   TARGET_RANLIB:=$(TARGET_CROSS)gcc-ranlib
203   TARGET_NM:=$(TARGET_CROSS)gcc-nm
204 else
205   TARGET_AR:=$(TARGET_CROSS)ar
206   TARGET_RANLIB:=$(TARGET_CROSS)ranlib
207   TARGET_NM:=$(TARGET_CROSS)nm
208 endif
209
210 BUILD_KEY=$(TOPDIR)/key-build
211
212 TARGET_CC:=$(TARGET_CROSS)gcc
213 TARGET_CXX:=$(TARGET_CROSS)g++
214 KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
215 SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
216 CP:=cp -fpR
217 LN:=ln -sf
218 XARGS:=xargs -r
219
220 BASH:=bash
221 TAR:=tar
222 FIND:=find
223 PATCH:=patch
224 PYTHON:=python
225
226 INSTALL_BIN:=install -m0755
227 INSTALL_DIR:=install -d -m0755
228 INSTALL_DATA:=install -m0644
229 INSTALL_CONF:=install -m0600
230
231 TARGET_CC_NOCACHE:=$(TARGET_CC)
232 TARGET_CXX_NOCACHE:=$(TARGET_CXX)
233 HOSTCC_NOCACHE:=$(HOSTCC)
234 HOSTCXX_NOCACHE:=$(HOSTCXX)
235 export TARGET_CC_NOCACHE
236 export TARGET_CXX_NOCACHE
237 export HOSTCC_NOCACHE
238
239 ifneq ($(CONFIG_CCACHE),)
240   TARGET_CC:= ccache_cc
241   TARGET_CXX:= ccache_cxx
242   HOSTCC:= ccache $(HOSTCC)
243   HOSTCXX:= ccache $(HOSTCXX)
244 endif
245
246 TARGET_CONFIGURE_OPTS = \
247   AR="$(TARGET_AR)" \
248   AS="$(TARGET_CC) -c $(TARGET_ASFLAGS)" \
249   LD=$(TARGET_CROSS)ld \
250   NM="$(TARGET_NM)" \
251   CC="$(TARGET_CC)" \
252   GCC="$(TARGET_CC)" \
253   CXX="$(TARGET_CXX)" \
254   RANLIB="$(TARGET_RANLIB)" \
255   STRIP=$(TARGET_CROSS)strip \
256   OBJCOPY=$(TARGET_CROSS)objcopy \
257   OBJDUMP=$(TARGET_CROSS)objdump \
258   SIZE=$(TARGET_CROSS)size
259
260 # strip an entire directory
261 ifneq ($(CONFIG_NO_STRIP),)
262   RSTRIP:=:
263   STRIP:=:
264 else
265   ifneq ($(CONFIG_USE_STRIP),)
266     STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
267   else
268     ifneq ($(CONFIG_USE_SSTRIP),)
269       STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
270     endif
271   endif
272   RSTRIP:= \
273     export CROSS="$(TARGET_CROSS)" \
274                 $(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
275                 $(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
276     NM="$(TARGET_CROSS)nm" \
277     STRIP="$(STRIP)" \
278     STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
279     PATCHELF="$(STAGING_DIR_HOST)/bin/patchelf" \
280     $(SCRIPT_DIR)/rstrip.sh
281 endif
282
283 ifeq ($(CONFIG_IPV6),y)
284   DISABLE_IPV6:=
285 else
286   DISABLE_IPV6:=--disable-ipv6
287 endif
288
289 TAR_OPTIONS:=-xf -
290
291 ifeq ($(CONFIG_BUILD_LOG),y)
292   BUILD_LOG:=1
293 endif
294
295 export BISON_PKGDATADIR:=$(STAGING_DIR_HOST)/share/bison
296 export M4:=$(STAGING_DIR_HOST)/bin/m4
297
298 define shvar
299 V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
300 endef
301
302 define shexport
303 export $(call shvar,$(1))=$$(call $(1))
304 endef
305
306 define include_mk
307 $(eval -include $(if $(DUMP),,$(STAGING_DIR)/mk/$(strip $(1))))
308 endef
309
310 # Execute commands under flock
311 # $(1) => The shell expression.
312 # $(2) => The lock name. If not given, the global lock will be used.
313 define locked
314         SHELL= \
315         $(STAGING_DIR_HOST)/bin/flock \
316                 $(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
317                 -c '$(subst ','\'',$(1))'
318 endef
319
320 # Recursively copy paths into another directory, purge dangling
321 # symlinks before.
322 # $(1) => File glob expression
323 # $(2) => Destination directory
324 define file_copy
325         for src_dir in $(sort $(foreach d,$(wildcard $(1)),$(dir $(d)))); do \
326                 ( cd $$src_dir; find -type f -or -type d ) | \
327                         ( cd $(2); while :; do \
328                                 read FILE; \
329                                 [ -z "$$FILE" ] && break; \
330                                 [ -L "$$FILE" ] || continue; \
331                                 echo "Removing symlink $(2)/$$FILE"; \
332                                 rm -f "$$FILE"; \
333                         done; ); \
334         done; \
335         $(CP) $(1) $(2)
336 endef
337
338 # file extension
339 ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
340
341 all:
342 FORCE: ;
343 .PHONY: FORCE
344
345 val.%:
346         @$(if $(filter undefined,$(origin $*)),\
347                 echo "$* undefined" >&2, \
348                 echo '$(subst ','"'"',$($*))' \
349         )
350
351 var.%:
352         @$(if $(filter undefined,$(origin $*)),\
353                 echo "$* undefined" >&2, \
354                 echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
355         )
356
357 endif #__rules_inc