1#
2# Copyright (c) 2013 The Linux Foundation. All rights reserved.
3# Copyright (C) 2006-2010 OpenWrt.org
4#
5# This is free software, licensed under the GNU General Public License v2.
6# See /LICENSE for more information.
7#
8
9ifneq ($(__rules_inc),1)
10__rules_inc=1
11
12ifeq ($(DUMP),)
13  -include $(TOPDIR)/.config
14endif
15include $(TOPDIR)/include/debug.mk
16include $(TOPDIR)/include/verbose.mk
17
18TMP_DIR:=$(TOPDIR)/tmp
19
20GREP_OPTIONS=
21export GREP_OPTIONS
22
23qstrip=$(strip $(subst ",,$(1)))
24#"))
25
26empty:=
27space:= $(empty) $(empty)
28merge=$(subst $(space),,$(1))
29confvar=$(call merge,$(foreach v,$(1),$(if $($(v)),y,n)))
30strip_last=$(patsubst %.$(lastword $(subst .,$(space),$(1))),%,$(1))
31
32define sep
33
34endef
35
36_SINGLE=export MAKEFLAGS=$(space);
37CFLAGS:=
38ARCH:=$(subst i486,i386,$(subst i586,i386,$(subst i686,i386,$(call qstrip,$(CONFIG_ARCH)))))
39ARCH_PACKAGES:=$(call qstrip,$(CONFIG_TARGET_ARCH_PACKAGES))
40BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD))
41TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
42TARGET_SUFFIX=$(call qstrip,$(CONFIG_TARGET_SUFFIX))
43BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
44SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
45export SHELL:=/usr/bin/env bash
46
47OPTIMIZE_FOR_CPU=$(subst i386,i486,$(ARCH))
48
49ifeq ($(ARCH),powerpc)
50  FPIC:=-fPIC
51else
52  FPIC:=-fpic
53endif
54
55HOST_FPIC:=-fPIC
56
57ARCH_SUFFIX:=
58GCC_ARCH:=
59
60ifneq ($(filter -march=armv%,$(TARGET_OPTIMIZATION)),)
61  ARCH_SUFFIX:=_$(patsubst -march=arm%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
62  GCC_ARCH:=$(patsubst -march=%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
63endif
64ifneq ($(findstring -mips32r2,$(TARGET_OPTIMIZATION)),)
65  ARCH_SUFFIX:=_r2
66endif
67ifdef CONFIG_HAS_SPE_FPU
68  TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
69endif
70
71GIT_HOME:=$(TOPDIR)/git_home
72DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
73BIN_DIR:=$(TOPDIR)/bin/$(BOARD)
74INCLUDE_DIR:=$(TOPDIR)/include
75SCRIPT_DIR:=$(TOPDIR)/scripts
76BUILD_DIR_BASE:=$(TOPDIR)/build_dir
77BUILD_DIR_HOST:=$(BUILD_DIR_BASE)/host
78STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
79PREBUILT_DIR:=$(TOPDIR)/prebuilt/$(BOARD)
80ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
81  GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
82  LIBC:=$(call qstrip,$(CONFIG_LIBC))
83  LIBCV:=$(call qstrip,$(CONFIG_LIBC_VERSION))
84  REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))
85  GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux
86  DIR_SUFFIX:=_$(LIBC)-$(LIBCV)$(if $(CONFIG_arm),_eabi)
87  BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
88  STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
89  BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
90  TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
91  PACKAGE_DIR:=$(BIN_DIR)/packages
92else
93  ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
94    GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
95  else
96    GNU_TARGET_NAME=$(shell gcc -dumpmachine)
97  endif
98  REAL_GNU_TARGET_NAME=$(GNU_TARGET_NAME)
99  BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
100  STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
101  BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(GNU_TARGET_NAME)
102  TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(GNU_TARGET_NAME)
103  PACKAGE_DIR:=$(BIN_DIR)/packages
104endif
105STAMP_DIR:=$(BUILD_DIR)/stamp
106STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
107TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
108TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
109STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
110BUILD_LOG_DIR:=$(TOPDIR)/logs
111
112TARGET_PATH:=$(STAGING_DIR_HOST)/bin:$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
113TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3)
114TARGET_CXXFLAGS = $(TARGET_CFLAGS)
115TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
116TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
117ifeq ($(CONFIG_ENABLE_SSP),y)
118TARGET_CFLAGS+= -fstack-protector
119endif
120ifeq ($(CONFIG_ENABLE_RELRO),y)
121TARGET_CFLAGS+= -Wl,-z,relro,-z,now
122TARGET_LDFLAGS+= -Wl,-z,relro,-z,now
123endif
124ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
125LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
126LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
127LIBGCC_A=$(realpath $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a))
128else
129LIBGCC_A=$(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a)
130LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
131endif
132LIBRPC=-lrpc
133LIBRPC_DEPENDS=+librpc
134
135ifneq ($(findstring $(ARCH) , mips64 x86_64 ),)
136  LIB_SUFFIX:=64
137endif
138
139ifndef DUMP
140  ifeq ($(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
167endif
168TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(TARGET_PATH)
169
170ifeq ($(CONFIG_SOFT_FLOAT),y)
171  SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
172  TARGET_CFLAGS+= -msoft-float
173else
174  SOFT_FLOAT_CONFIG_OPTION:=
175endif
176
177export PATH:=$(TARGET_PATH)
178export STAGING_DIR
179export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
180
181PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
182
183export PKG_CONFIG
184
185HOSTCC:=gcc
186HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include
187HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
188HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib
189
190TARGET_CC:=$(TARGET_CROSS)gcc
191TARGET_AR:=$(TARGET_CROSS)ar
192TARGET_RANLIB:=$(TARGET_CROSS)ranlib
193TARGET_CXX:=$(if $(CONFIG_INSTALL_LIBSTDCPP),$(TARGET_CROSS)g++,no)
194KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
195SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
196CP:=cp -fpR
197LN:=ln -sf
198
199INSTALL_BIN:=install -m0755
200INSTALL_DIR:=install -d -m0755
201INSTALL_DATA:=install -m0644
202INSTALL_CONF:=install -m0600
203
204TARGET_CC_NOCACHE:=$(TARGET_CC)
205TARGET_CXX_NOCACHE:=$(TARGET_CXX)
206HOSTCC_NOCACHE:=$(HOSTCC)
207export TARGET_CC_NOCACHE
208export TARGET_CXX_NOCACHE
209export HOSTCC_NOCACHE
210
211ifneq ($(CONFIG_CCACHE),)
212  TARGET_CC:= ccache_cc
213  TARGET_CXX:= ccache_cxx
214  HOSTCC:= ccache $(HOSTCC)
215endif
216
217TARGET_CONFIGURE_OPTS = \
218  AR=$(TARGET_CROSS)ar \
219  AS="$(TARGET_CC) -c $(TARGET_CFLAGS)" \
220  LD=$(TARGET_CROSS)ld \
221  NM=$(TARGET_CROSS)nm \
222  CC="$(TARGET_CC)" \
223  GCC="$(TARGET_CC)" \
224  CXX="$(TARGET_CXX)" \
225  RANLIB=$(TARGET_CROSS)ranlib \
226  STRIP=$(TARGET_CROSS)strip \
227  OBJCOPY=$(TARGET_CROSS)objcopy \
228  OBJDUMP=$(TARGET_CROSS)objdump \
229  SIZE=$(TARGET_CROSS)size
230
231# strip an entire directory
232ifneq ($(CONFIG_NO_STRIP),)
233  RSTRIP:=:
234  STRIP:=:
235else
236  ifneq ($(CONFIG_USE_STRIP),)
237    STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
238  else
239    ifneq ($(CONFIG_USE_SSTRIP),)
240      STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
241    endif
242  endif
243  RSTRIP:= \
244    export CROSS="$(TARGET_CROSS)" \
245		$(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
246		$(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
247    NM="$(TARGET_CROSS)nm" \
248    STRIP="$(STRIP)" \
249    STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
250    $(SCRIPT_DIR)/rstrip.sh
251endif
252
253ifeq ($(CONFIG_ENABLE_LOCALE),true)
254  DISABLE_NLS:=--enable-nls
255else
256  DISABLE_NLS:=--disable-nls
257endif
258
259ifeq ($(CONFIG_IPV6),y)
260  DISABLE_IPV6:=
261else
262  DISABLE_IPV6:=--disable-ipv6
263endif
264
265ifeq ($(CONFIG_TAR_VERBOSITY),y)
266  TAR_OPTIONS:=-xvf -
267else
268  TAR_OPTIONS:=-xf -
269endif
270
271ifeq ($(CONFIG_BUILD_LOG),y)
272  BUILD_LOG:=1
273endif
274
275define shvar
276V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
277endef
278
279define shexport
280$(call shvar,$(1))=$$(call $(1))
281export $(call shvar,$(1))
282endef
283
284define include_mk
285$(eval -include $(if $(DUMP),,$(STAGING_DIR)/mk/$(strip $(1))))
286endef
287
288# Execute commands under flock
289# $(1) => The shell expression.
290# $(2) => The lock name. If not given, the global lock will be used.
291define locked
292	SHELL= \
293	$(STAGING_DIR_HOST)/bin/flock \
294		$(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
295		-c '$(subst ','\'',$(1))'
296endef
297
298# file extension
299ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
300
301all:
302FORCE: ;
303.PHONY: FORCE
304
305val.%:
306	@$(if $(filter undefined,$(origin $*)),\
307		echo "$* undefined" >&2, \
308		echo '$(subst ','"'"',$($*))' \
309	)
310
311var.%:
312	@$(if $(filter undefined,$(origin $*)),\
313		echo "$* undefined" >&2, \
314		echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
315	)
316
317endif #__rules_inc
318