Root/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
8ifneq ($(__rules_inc),1)
9__rules_inc=1
10
11ifeq ($(DUMP),)
12  -include $(TOPDIR)/.config
13endif
14include $(TOPDIR)/include/debug.mk
15include $(TOPDIR)/include/verbose.mk
16
17TMP_DIR:=$(TOPDIR)/tmp
18
19GREP_OPTIONS=
20export GREP_OPTIONS
21
22qstrip=$(strip $(subst ",,$(1)))
23#"))
24
25empty:=
26space:= $(empty) $(empty)
27merge=$(subst $(space),,$(1))
28confvar=$(call merge,$(foreach v,$(1),$(if $($(v)),y,n)))
29strip_last=$(patsubst %.$(lastword $(subst .,$(space),$(1))),%,$(1))
30
31define sep
32
33endef
34
35_SINGLE=export MAKEFLAGS=$(space);
36CFLAGS:=
37ARCH:=$(subst i486,i386,$(subst i586,i386,$(subst i686,i386,$(call qstrip,$(CONFIG_ARCH)))))
38ARCH_PACKAGES:=$(call qstrip,$(CONFIG_TARGET_ARCH_PACKAGES))
39BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD))
40TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
41TARGET_SUFFIX=$(call qstrip,$(CONFIG_TARGET_SUFFIX))
42BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
43SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
44export SHELL:=/usr/bin/env bash
45
46OPTIMIZE_FOR_CPU=$(subst i386,i486,$(ARCH))
47
48ifeq ($(ARCH),powerpc)
49  FPIC:=-fPIC
50else
51  FPIC:=-fpic
52endif
53
54HOST_FPIC:=-fPIC
55
56ARCH_SUFFIX:=
57GCC_ARCH:=
58
59ifneq ($(filter -march=armv%,$(TARGET_OPTIMIZATION)),)
60  ARCH_SUFFIX:=_$(patsubst -march=arm%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
61  GCC_ARCH:=$(patsubst -march=%,%,$(filter -march=armv%,$(TARGET_OPTIMIZATION)))
62endif
63ifneq ($(findstring -mips32r2,$(TARGET_OPTIMIZATION)),)
64  ARCH_SUFFIX:=_r2
65endif
66ifdef CONFIG_HAS_SPE_FPU
67  TARGET_SUFFIX:=$(TARGET_SUFFIX)spe
68endif
69
70DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
71BIN_DIR:=$(TOPDIR)/bin/$(BOARD)
72INCLUDE_DIR:=$(TOPDIR)/include
73SCRIPT_DIR:=$(TOPDIR)/scripts
74BUILD_DIR_BASE:=$(TOPDIR)/build_dir
75BUILD_DIR_HOST:=$(BUILD_DIR_BASE)/host
76STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
77ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
78  GCCV:=$(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 $(CONFIG_arm),_eabi)
84  BIN_DIR:=$(BIN_DIR)$(if $(CONFIG_USE_UCLIBC),,-$(LIBC))
85  BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
86  STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(ARCH)$(ARCH_SUFFIX)$(DIR_SUFFIX)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
87  BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
88  TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(ARCH)$(ARCH_SUFFIX)_gcc-$(GCCV)$(DIR_SUFFIX)
89  PACKAGE_DIR:=$(BIN_DIR)/packages
90else
91  ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
92    GNU_TARGET_NAME=$(call qstrip,$(CONFIG_TARGET_NAME))
93  else
94    GNU_TARGET_NAME=$(shell gcc -dumpmachine)
95  endif
96  REAL_GNU_TARGET_NAME=$(GNU_TARGET_NAME)
97  BUILD_DIR:=$(BUILD_DIR_BASE)/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
98  STAGING_DIR:=$(TOPDIR)/staging_dir/target-$(GNU_TARGET_NAME)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
99  BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(GNU_TARGET_NAME)
100  TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(GNU_TARGET_NAME)
101  PACKAGE_DIR:=$(BIN_DIR)/packages
102endif
103STAMP_DIR:=$(BUILD_DIR)/stamp
104STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
105TARGET_ROOTFS_DIR?=$(if $(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(call qstrip,$(CONFIG_TARGET_ROOTFS_DIR)),$(BUILD_DIR))
106TARGET_DIR:=$(TARGET_ROOTFS_DIR)/root-$(BOARD)
107STAGING_DIR_ROOT:=$(STAGING_DIR)/root-$(BOARD)
108BUILD_LOG_DIR:=$(TOPDIR)/logs
109PKG_INFO_DIR := $(STAGING_DIR)/pkginfo
110
111TARGET_PATH:=$(STAGING_DIR_HOST)/bin:$(subst $(space),:,$(filter-out .,$(filter-out ./,$(subst :,$(space),$(PATH)))))
112TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)$(if $(CONFIG_DEBUG), -g3)
113TARGET_CXXFLAGS = $(TARGET_CFLAGS)
114TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
115TARGET_LDFLAGS:=-L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
116ifneq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
117LIBGCC_S_PATH=$(realpath $(wildcard $(call qstrip,$(CONFIG_LIBGCC_ROOT_DIR))/$(call qstrip,$(CONFIG_LIBGCC_FILE_SPEC))))
118LIBGCC_S=$(if $(LIBGCC_S_PATH),-L$(dir $(LIBGCC_S_PATH)) -lgcc_s)
119LIBGCC_A=$(realpath $(wildcard $(dir $(LIBGCC_S_PATH))/gcc/*/*/libgcc.a))
120else
121LIBGCC_A=$(wildcard $(TOOLCHAIN_DIR)/lib/gcc/*/*/libgcc.a)
122LIBGCC_S=$(if $(wildcard $(TOOLCHAIN_DIR)/lib/libgcc_s.so),-L$(TOOLCHAIN_DIR)/lib -lgcc_s,$(LIBGCC_A))
123endif
124LIBRPC=-lrpc
125LIBRPC_DEPENDS=+librpc
126
127ifneq ($(findstring $(ARCH) , mips64 x86_64 ),)
128  LIB_SUFFIX:=64
129endif
130
131ifndef DUMP
132  ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
133    -include $(TOOLCHAIN_DIR)/info.mk
134    export GCC_HONOUR_COPTS:=0
135    TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
136    TARGET_CFLAGS+= -fhonour-copts $(if $(CONFIG_GCC_VERSION_4_4)$(CONFIG_GCC_VERSION_4_5),,-Wno-error=unused-but-set-variable)
137    TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include -I$(TOOLCHAIN_DIR)/include
138    TARGET_LDFLAGS+= -L$(TOOLCHAIN_DIR)/usr/lib -L$(TOOLCHAIN_DIR)/lib
139    TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
140  else
141    ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
142      TARGET_CROSS:=$(call qstrip,$(CONFIG_TOOLCHAIN_PREFIX))
143      TOOLCHAIN_ROOT_DIR:=$(call qstrip,$(CONFIG_TOOLCHAIN_ROOT))
144      TOOLCHAIN_BIN_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_BIN_PATH)))
145      TOOLCHAIN_INC_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_INC_PATH)))
146      TOOLCHAIN_LIB_DIRS:=$(patsubst ./%,$(TOOLCHAIN_ROOT_DIR)/%,$(call qstrip,$(CONFIG_TOOLCHAIN_LIB_PATH)))
147      ifneq ($(TOOLCHAIN_BIN_DIRS),)
148        TARGET_PATH:=$(subst $(space),:,$(TOOLCHAIN_BIN_DIRS)):$(TARGET_PATH)
149      endif
150      ifneq ($(TOOLCHAIN_INC_DIRS),)
151        TARGET_CPPFLAGS+= $(patsubst %,-I%,$(TOOLCHAIN_INC_DIRS))
152      endif
153      ifneq ($(TOOLCHAIN_LIB_DIRS),)
154        TARGET_LDFLAGS+= $(patsubst %,-L%,$(TOOLCHAIN_LIB_DIRS))
155      endif
156      TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(TARGET_PATH)
157    endif
158  endif
159endif
160TARGET_PATH_PKG:=$(STAGING_DIR)/host/bin:$(TARGET_PATH)
161
162ifeq ($(CONFIG_SOFT_FLOAT),y)
163  SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
164  TARGET_CFLAGS+= -msoft-float
165else
166  SOFT_FLOAT_CONFIG_OPTION:=
167endif
168
169export PATH:=$(TARGET_PATH)
170export STAGING_DIR
171export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
172
173PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
174
175export PKG_CONFIG
176
177HOSTCC:=gcc
178HOST_CPPFLAGS:=-I$(STAGING_DIR_HOST)/include
179HOST_CFLAGS:=-O2 $(HOST_CPPFLAGS)
180HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib
181
182TARGET_CC:=$(TARGET_CROSS)gcc
183TARGET_AR:=$(TARGET_CROSS)ar
184TARGET_RANLIB:=$(TARGET_CROSS)ranlib
185TARGET_CXX:=$(if $(CONFIG_INSTALL_LIBSTDCPP),$(TARGET_CROSS)g++,no)
186KPATCH:=$(SCRIPT_DIR)/patch-kernel.sh
187SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
188CP:=cp -fpR
189LN:=ln -sf
190
191INSTALL_BIN:=install -m0755
192INSTALL_DIR:=install -d -m0755
193INSTALL_DATA:=install -m0644
194INSTALL_CONF:=install -m0600
195
196TARGET_CC_NOCACHE:=$(TARGET_CC)
197TARGET_CXX_NOCACHE:=$(TARGET_CXX)
198HOSTCC_NOCACHE:=$(HOSTCC)
199export TARGET_CC_NOCACHE
200export TARGET_CXX_NOCACHE
201export HOSTCC_NOCACHE
202
203ifneq ($(CONFIG_CCACHE),)
204  TARGET_CC:= ccache_cc
205  TARGET_CXX:= ccache_cxx
206  HOSTCC:= ccache $(HOSTCC)
207endif
208
209TARGET_CONFIGURE_OPTS = \
210  AR=$(TARGET_CROSS)ar \
211  AS="$(TARGET_CC) -c $(TARGET_CFLAGS)" \
212  LD=$(TARGET_CROSS)ld \
213  NM=$(TARGET_CROSS)nm \
214  CC="$(TARGET_CC)" \
215  GCC="$(TARGET_CC)" \
216  CXX="$(TARGET_CXX)" \
217  RANLIB=$(TARGET_CROSS)ranlib \
218  STRIP=$(TARGET_CROSS)strip \
219  OBJCOPY=$(TARGET_CROSS)objcopy \
220  OBJDUMP=$(TARGET_CROSS)objdump \
221  SIZE=$(TARGET_CROSS)size
222
223# strip an entire directory
224ifneq ($(CONFIG_NO_STRIP),)
225  RSTRIP:=:
226  STRIP:=:
227else
228  ifneq ($(CONFIG_USE_STRIP),)
229    STRIP:=$(TARGET_CROSS)strip $(call qstrip,$(CONFIG_STRIP_ARGS))
230  else
231    ifneq ($(CONFIG_USE_SSTRIP),)
232      STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
233    endif
234  endif
235  RSTRIP:= \
236    export CROSS="$(TARGET_CROSS)" \
237        $(if $(CONFIG_KERNEL_KALLSYMS),NO_RENAME=1) \
238        $(if $(CONFIG_KERNEL_PROFILING),KEEP_SYMBOLS=1); \
239    NM="$(TARGET_CROSS)nm" \
240    STRIP="$(STRIP)" \
241    STRIP_KMOD="$(SCRIPT_DIR)/strip-kmod.sh" \
242    $(SCRIPT_DIR)/rstrip.sh
243endif
244
245ifeq ($(CONFIG_ENABLE_LOCALE),true)
246  DISABLE_NLS:=--enable-nls
247else
248  DISABLE_NLS:=--disable-nls
249endif
250
251ifeq ($(CONFIG_IPV6),y)
252  DISABLE_IPV6:=
253else
254  DISABLE_IPV6:=--disable-ipv6
255endif
256
257ifeq ($(CONFIG_TAR_VERBOSITY),y)
258  TAR_OPTIONS:=-xvf -
259else
260  TAR_OPTIONS:=-xf -
261endif
262
263ifeq ($(CONFIG_BUILD_LOG),y)
264  BUILD_LOG:=1
265endif
266
267define shvar
268V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
269endef
270
271define shexport
272$(call shvar,$(1))=$$(call $(1))
273export $(call shvar,$(1))
274endef
275
276define include_mk
277$(eval -include $(if $(DUMP),,$(STAGING_DIR)/mk/$(strip $(1))))
278endef
279
280# Execute commands under flock
281# $(1) => The shell expression.
282# $(2) => The lock name. If not given, the global lock will be used.
283define locked
284    SHELL= \
285    $(STAGING_DIR_HOST)/bin/flock \
286        $(TMP_DIR)/.$(if $(2),$(strip $(2)),global).flock \
287        -c '$(subst ','\'',$(1))'
288endef
289
290# Recursively copy paths into another directory, purge dangling
291# symlinks before.
292# $(1) => File glob expression
293# $(2) => Destination directory
294define file_copy
295    for src_dir in $(sort $(foreach d,$(wildcard $(1)),$(dir $(d)))); do \
296        ( cd $$src_dir; find -type f -or -type d ) | \
297            ( cd $(2); while :; do \
298                read FILE; \
299                [ -z "$$FILE" ] && break; \
300                [ -L "$$FILE" ] || continue; \
301                echo "Removing symlink $(2)/$$FILE"; \
302                rm -f "$$FILE"; \
303            done; ); \
304    done; \
305    $(CP) $(1) $(2)
306endef
307
308# file extension
309ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
310
311all:
312FORCE: ;
313.PHONY: FORCE
314
315val.%:
316    @$(if $(filter undefined,$(origin $*)),\
317        echo "$* undefined" >&2, \
318        echo '$(subst ','"'"',$($*))' \
319    )
320
321var.%:
322    @$(if $(filter undefined,$(origin $*)),\
323        echo "$* undefined" >&2, \
324        echo "$*='"'$(subst ','"'\"'\"'"',$($*))'"'" \
325    )
326
327endif #__rules_inc
328

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