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
8ifneq ($(__rules_inc),1)
9__rules_inc=1
10
11ifeq ($(DUMP),)
12  -include $(TOPDIR)/.config
13endif
14include $(TOPDIR)/include/debug.mk
15include $(TOPDIR)/include/verbose.mk
16
17export TMP_DIR:=$(TOPDIR)/tmp
18
19qstrip=$(strip $(subst ",,$(1)))
20#"))
21
22empty:=
23space:= $(empty) $(empty)
24comma:=,
25merge=$(subst $(space),,$(1))
26confvar=$(call merge,$(foreach v,$(1),$(if $($(v)),y,n)))
27strip_last=$(patsubst %.$(lastword $(subst .,$(space),$(1))),%,$(1))
28
29paren_left = (
30paren_right = )
31chars_lower = a b c d e f g h i j k l m n o p q r s t u v w x y z
32chars_upper = A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
33
34define sep
35
36endef
37
38define newline
39
40
41endef
42
43__tr_list = $(join $(join $(1),$(foreach char,$(1),$(comma))),$(2))
44__tr_head_stripped = $(subst $(space),,$(foreach cv,$(call __tr_list,$(1),$(2)),$$$(paren_left)subst$(cv)$(comma)))
45__tr_head = $(subst $(paren_left)subst,$(paren_left)subst$(space),$(__tr_head_stripped))
46__tr_tail = $(subst $(space),,$(foreach cv,$(1),$(paren_right)))
47__tr_template = $(__tr_head)$$(1)$(__tr_tail)
48
49$(eval toupper = $(call __tr_template,$(chars_lower),$(chars_upper)))
50$(eval tolower = $(call __tr_template,$(chars_upper),$(chars_lower)))
51
52version_abbrev = $(if $(if $(CHECK),,$(DUMP)),$(1),$(shell printf '%.8s' $(1)))
53
54_SINGLE=export MAKEFLAGS=$(space);
55CFLAGS:=
56ARCH:=$(subst i486,i386,$(subst i586,i386,$(subst i686,i386,$(call qstrip,$(CONFIG_ARCH)))))
57ARCH_PACKAGES:=$(call qstrip,$(CONFIG_TARGET_ARCH_PACKAGES))
58BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD))
59TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
60export EXTRA_OPTIMIZATION:=$(filter-out -fno-plt,$(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION)))
61TARGET_SUFFIX=$(call qstrip,$(CONFIG_TARGET_SUFFIX))
62BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
63SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
64BUILD_SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
65export SHELL:=/usr/bin/env bash
66
67IS_PACKAGE_BUILD := $(if $(filter package/%,$(BUILD_SUBDIR)),1)
68
69OPTIMIZE_FOR_CPU=$(subst i386,i486,$(ARCH))
70
71ifeq ($(ARCH),powerpc)
72  FPIC:=-fPIC
73else
74  FPIC:=-fpic
75endif
76
77HOST_FPIC:=-fPIC
78
79ARCH_SUFFIX:=$(call qstrip,$(CONFIG_CPU_TYPE))
80GCC_ARCH:=
81
82ifneq ($(ARCH_SUFFIX),)
83  ARCH_SUFFIX:=_$(ARCH_SUFFIX)
84endif
85ifneq ($(filter -march=armv%,$(TARGET_OPTIMIZATION)),)
86  GCC_ARCH:=$(patsubst -march=%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
87endif
88ifdef CONFIG_HAS_SPE_FPU
89  TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
90endif
91ifdef CONFIG_MIPS64_ABI
92  ifneq ($(CONFIG_MIPS64_ABI_O32),y)
93     ARCH_SUFFIX:=$(ARCH_SUFFIX)_$(call qstrip,$(CONFIG_MIPS64_ABI))
94  endif
95endif
96
97DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
98BIN_DIR:=$(if $(call qstrip,$(CONFIG_BINARY_FOLDER)),$(call qstrip,$(CONFIG_BINARY_FOLDER)),$(TOPDIR)/bin/$(BOARD))
99INCLUDE_DIR:=$(TOPDIR)/include
100SCRIPT_DIR:=$(TOPDIR)/scripts
101BUILD_DIR_BASE:=$(TOPDIR)/build_dir
102ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
103  GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
104  LIBC:=$(call qstrip,$(CONFIG_LIBC))
105  LIBCV:=$(call qstrip,$(CONFIG_LIBC_VERSION))
106  REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))
107  GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-openwrt-linux
108  DIR_SUFFIX:=_$(LIBC)-$(LIBCV)$(if $(CONFIG_arm),_eabi)
109  BIN_DIR:=$(BIN_DIR)$(if $(CONFIG_USE_MUSL),,-$(LIBC))
110  TARGET_DIR_NAME = target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
111  TOOLCHAIN_DIR_NAME = toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
112else
113  ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
114    GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
115  else
116    GNU_TARGET_NAME=$(shell gcc -dumpmachine)
117  endif
118  REAL_GNU_TARGET_NAME=$(GNU_TARGET_NAME)
119  TARGET_DIR_NAME:=target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
120  TOOLCHAIN_DIR_NAME:=toolchain-$(GNU_TARGET_NAME)
121endif
122
123ifeq ($(or $(CONFIG_EXTERNAL_TOOLCHAIN),$(CONFIG_GCC_VERSION_4_8),$(CONFIG_TARGET_uml)),)
124  iremap = -iremap $(1):$(2)
125endif
126
127PACKAGE_DIR:=$(BIN_DIR)/packages
128BUILD_DIR:=$(BUILD_DIR_BASE)/$(TARGET_DIR_NAME)
129STAGING_DIR:=$(TOPDIR)/staging_dir/$(TARGET_DIR_NAME)
130BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/$(TOOLCHAIN_DIR_NAME)
131TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/$(TOOLCHAIN_DIR_NAME)
132STAMP_DIR:=$(BUILD_DIR)/stamp
133STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
134TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
135TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
136STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
137BUILD_LOG_DIR:=$(TOPDIR)/logs
138PKG_INFO_DIR := $(STAGING_DIR)/pkginfo
139
140BUILD_DIR_HOST:=$(if $(IS_PACKAGE_BUILD),$(BUILD_DIR)/host,$(BUILD_DIR_BASE)/host)
141STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
142STAGING_DIR_HOSTPKG:=$(STAGING_DIR)/host
143
144TARGET_PATH:=$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
145TARGET_INIT_PATH:=$(call qstrip,$(CONFIG_TARGET_INIT_PATH))
146TARGET_INIT_PATH:=$(if $(TARGET_INIT_PATH),$(TARGET_INIT_PATH),/usr/sbin:/sbin:/usr/bin:/bin)
147TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3) $(call qstrip,$(CONFIG_EXTRA_OPTIMIZATION))
148TARGET_CXXFLAGS = $(TARGET_CFLAGS)
149TARGET_ASFLAGS_DEFAULT = $(TARGET_CFLAGS)
150TARGET_ASFLAGS = $(TARGET_ASFLAGS_DEFAULT)
151TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
152TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
153ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
154LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
155LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
156LIBGCC_A=$(realpath $(lastword $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a)))
157else
158LIBGCC_A=$(lastword $(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a))
159LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
160endif
161LIBRPC=-lrpc
162LIBRPC_DEPENDS=+librpc
163
164ifeq ($(CONFIG_ARCH_64BIT),y)
165  LIB_SUFFIX:=64
166endif
167
168ifndef DUMP
169  ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
170    -include $(TOOLCHAIN_DIR)/info.mk
171    export GCC_HONOUR_COPTS:=0
172    TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
173    TARGET_CFLAGS+= -fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result
174    TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include
175    ifeq ($(CONFIG_USE_MUSL),y)
176      TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/include/fortify
177    endif
178    TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/include
179    TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
180    TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
181  else
182    ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
183      TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
184      TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
185      TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
186      TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
187      TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
188      ifneq ($(TOOLCHAIN_BIN_DIRS),)
189        TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
190      endif
191      ifneq ($(TOOLCHAIN_INC_DIRS),)
192        TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
193      endif
194      ifneq ($(TOOLCHAIN_LIB_DIRS),)
195        TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
196      endif
197      TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
198    endif
199  endif
200endif
201TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(TARGET_PATH)
202
203ifeq ($(CONFIG_SOFT_FLOAT),y)
204  SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
205  ifeq ($(CONFIG_arm),y)
206    TARGET_CFLAGS+= -mfloat-abi=soft
207  else
208    TARGET_CFLAGS+= -msoft-float
209  endif
210else
211  SOFT_FLOAT_CONFIG_OPTION:=
212  ifeq ($(CONFIG_arm),y)
213    TARGET_CFLAGS+= -mfloat-abi=hard
214  endif
215endif
216
217export PATH:=$(TARGET_PATH)
218export STAGING_DIR STAGING_DIR_HOST
219export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
220
221PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
222
223export PKG_CONFIG
224
225HOSTCC:=gcc
226HOSTCXX:=g++
227HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include -I$(STAGING_DIR_HOST)/usr/include $(if $(IS_PACKAGE_BUILD),-I$(STAGING_DIR)/host/include)
228HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
229HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib -L$(STAGING_DIR_HOST)/usr/lib $(if $(IS_PACKAGE_BUILD),-L$(STAGING_DIR)/host/lib)
230
231ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
232  TARGET_AR:=$(TARGET_CROSS)gcc-ar
233  TARGET_RANLIB:=$(TARGET_CROSS)gcc-ranlib
234  TARGET_NM:=$(TARGET_CROSS)gcc-nm
235else
236  TARGET_AR:=$(TARGET_CROSS)ar
237  TARGET_RANLIB:=$(TARGET_CROSS)ranlib
238  TARGET_NM:=$(TARGET_CROSS)nm
239endif
240
241BUILD_KEY=$(TOPDIR)/key-build
242
243TARGET_CC:=$(TARGET_CROSS)gcc
244TARGET_CXX:=$(TARGET_CROSS)g++
245KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
246SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
247CP:=cp -fpR
248LN:=ln -sf
249XARGS:=xargs -r
250
251BASH:=bash
252TAR:=tar
253FIND:=find
254PATCH:=patch
255PYTHON:=python
256
257INSTALL_BIN:=install -m0755
258INSTALL_DIR:=install -d -m0755
259INSTALL_DATA:=install -m0644
260INSTALL_CONF:=install -m0600
261
262TARGET_CC_NOCACHE:=$(TARGET_CC)
263TARGET_CXX_NOCACHE:=$(TARGET_CXX)
264HOSTCC_NOCACHE:=$(HOSTCC)
265HOSTCXX_NOCACHE:=$(HOSTCXX)
266export TARGET_CC_NOCACHE
267export TARGET_CXX_NOCACHE
268export HOSTCC_NOCACHE
269
270ifneq ($(CONFIG_CCACHE),)
271  TARGET_CC:= ccache_cc
272  TARGET_CXX:= ccache_cxx
273  HOSTCC:= ccache $(HOSTCC)
274  HOSTCXX:= ccache $(HOSTCXX)
275endif
276
277TARGET_CONFIGURE_OPTS = \
278  AR="$(TARGET_AR)" \
279  AS="$(TARGET_CC) -c $(TARGET_ASFLAGS)" \
280  LD=$(TARGET_CROSS)ld \
281  NM="$(TARGET_NM)" \
282  CC="$(TARGET_CC)" \
283  GCC="$(TARGET_CC)" \
284  CXX="$(TARGET_CXX)" \
285  RANLIB="$(TARGET_RANLIB)" \
286  STRIP=$(TARGET_CROSS)strip \
287  OBJCOPY=$(TARGET_CROSS)objcopy \
288  OBJDUMP=$(TARGET_CROSS)objdump \
289  SIZE=$(TARGET_CROSS)size
290
291# strip an entire directory
292ifneq ($(CONFIG_NO_STRIP),)
293  RSTRIP:=:
294  STRIP:=:
295else
296  ifneq ($(CONFIG_USE_STRIP),)
297    STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
298  else
299    ifneq ($(CONFIG_USE_SSTRIP),)
300      STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
301    endif
302  endif
303  RSTRIP= \
304    export CROSS="$(TARGET_CROSS)" \
305		$(if $(PKG_BUILD_ID),KEEP_BUILD_ID=1) \
306		$(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
307		$(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
308    NM="$(TARGET_CROSS)nm" \
309    STRIP="$(STRIP)" \
310    STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
311    PATCHELF="$(STAGING_DIR_HOST)/bin/patchelf" \
312    $(SCRIPT_DIR)/rstrip.sh
313endif
314
315ifeq ($(CONFIG_IPV6),y)
316  DISABLE_IPV6:=
317else
318  DISABLE_IPV6:=--disable-ipv6
319endif
320
321TAR_OPTIONS:=-xf -
322
323ifeq ($(CONFIG_BUILD_LOG),y)
324  BUILD_LOG:=1
325endif
326
327export BISON_PKGDATADIR:=$(STAGING_DIR_HOST)/share/bison
328export M4:=$(STAGING_DIR_HOST)/bin/m4
329
330define shvar
331V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
332endef
333
334define shexport
335export $(call shvar,$(1))=$$(call $(1))
336endef
337
338define include_mk
339$(eval -include $(if $(DUMP),,$(STAGING_DIR)/mk/$(strip $(1))))
340endef
341
342# Execute commands under flock
343# $(1) => The shell expression.
344# $(2) => The lock name. If not given, the global lock will be used.
345ifneq ($(wildcard $(STAGING_DIR_HOST)/bin/flock),)
346  define locked
347	SHELL= \
348	flock \
349		$(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
350		-c '$(subst ','\'',$(1))'
351  endef
352else
353  locked=$(1)
354endif
355
356# Recursively copy paths into another directory, purge dangling
357# symlinks before.
358# $(1) => File glob expression
359# $(2) => Destination directory
360define file_copy
361	for src_dir in $(sort $(foreach d,$(wildcard $(1)),$(dir $(d)))); do \
362		( cd $$src_dir; find -type f -or -type d ) | \
363			( cd $(2); while :; do \
364				read FILE; \
365				[ -z "$$FILE" ] && break; \
366				[ -L "$$FILE" ] || continue; \
367				echo "Removing symlink $(2)/$$FILE"; \
368				rm -f "$$FILE"; \
369			done; ); \
370	done; \
371	$(CP) $(1) $(2)
372endef
373
374# file extension
375ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
376
377all:
378FORCE: ;
379.PHONY: FORCE
380
381val.%:
382	@$(if $(filter undefined,$(origin $*)),\
383		echo "$* undefined" >&2, \
384		echo '$(subst ','"'"',$($*))' \
385	)
386
387var.%:
388	@$(if $(filter undefined,$(origin $*)),\
389		echo "$* undefined" >&2, \
390		echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
391	)
392
393endif #__rules_inc
394