make sure that when the kernel config changes, compile is triggered for all kernel...
[openwrt/svn-archive/archive.git] / rules.mk
1 #
2 # Copyright (C) 2006-2007 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 $(TOPDIR)/include/verbose.mk
16
17 TMP_DIR:=$(TOPDIR)/tmp
18
19 export SHELL=/usr/bin/env bash -c '. $(TOPDIR)/include/shell.sh; eval "$$2"' --
20
21 define qstrip
22 $(strip $(subst ",,$(1)))
23 endef
24 #"))
25
26 empty:=
27 space:= $(empty) $(empty)
28 merge=$(subst $(space),,$(1))
29 confvar=$(call merge,$(foreach v,$(1),$(if $($(v)),y,n)))
30 strip_last=$(patsubst %.$(lastword $(subst .,$(space),$(1))),%,$(1))
31
32 _SINGLE=export MAKEFLAGS=$(space);
33 ARCH:=$(call qstrip,$(shell echo $(CONFIG_ARCH) | sed -e 's/i[3-9]86/i386/'))
34 BOARD:=$(call qstrip,$(CONFIG_TARGET_BOARD))
35 TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
36 BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
37 GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))
38 SUBDIR:=$(patsubst $(TOPDIR)/%,%,${CURDIR})
39
40 OPTIMIZE_FOR_CPU=$(ARCH)
41
42 ifeq ($(ARCH),powerpc)
43 FPIC:=-fPIC
44 else
45 FPIC:=-fpic
46 endif
47
48 DL_DIR:=$(if $(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(call qstrip,$(CONFIG_DOWNLOAD_FOLDER)),$(TOPDIR)/dl)
49 BIN_DIR:=$(TOPDIR)/bin
50 INCLUDE_DIR:=$(TOPDIR)/include
51 SCRIPT_DIR:=$(TOPDIR)/scripts
52 BUILD_DIR_BASE:=$(TOPDIR)/build_dir
53 BUILD_DIR:=$(BUILD_DIR_BASE)/$(ARCH)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
54 BUILD_DIR_HOST:=$(BUILD_DIR_BASE)/host
55 BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(ARCH)_gcc$(GCCV)
56 STAGING_DIR:=$(TOPDIR)/staging_dir/$(ARCH)
57 STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
58 TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(ARCH)_gcc$(GCCV)
59 PACKAGE_DIR:=$(BIN_DIR)/packages/$(ARCH)
60 STAMP_DIR:=$(BUILD_DIR)/stamp
61 STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
62 TARGET_DIR:=$(BUILD_DIR)/root-$(BOARD)
63 IPKG_STATE_DIR:=$(TARGET_DIR)/usr/lib/ipkg
64
65 TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(STAGING_DIR_HOST)/bin:$(STAGING_DIR)/host/bin:$(PATH)
66 TARGET_CFLAGS:=$(TARGET_OPTIMIZATION)
67 TARGET_CPPFLAGS:=-I$(STAGING_DIR)/usr/include -I$(STAGING_DIR)/include
68 TARGET_LDFLAGS:=-L$(TOOLCHAIN_DIR)/lib -L$(STAGING_DIR)/usr/lib -L$(STAGING_DIR)/lib
69
70 ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
71 -include $(TOOLCHAIN_DIR)/info.mk
72 REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux-uclibc$(if $(CONFIG_EABI_SUPPORT),gnueabi)
73 GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux
74 TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-linux-uclibc$(if $(CONFIG_EABI_SUPPORT),gnueabi)-)
75 TARGET_CFLAGS+= -fhonour-copts
76 endif
77
78 ifeq ($(CONFIG_SOFT_FLOAT),y)
79 SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
80 TARGET_CFLAGS+=-msoft-float
81 else
82 SOFT_FLOAT_CONFIG_OPTION:=
83 endif
84
85 export PATH:=$(TARGET_PATH)
86 export STAGING_DIR
87 export GCC_HONOUR_COPTS:=0
88
89 PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config
90
91 export PKG_CONFIG
92
93 LINUX_HEADERS_DIR:=$(BUILD_DIR_TOOLCHAIN)/linux
94
95 HOSTCC:=gcc
96 HOST_CFLAGS:=-O2 -I$(STAGING_DIR_HOST)/include
97 HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib
98
99 TARGET_CC:=$(TARGET_CROSS)gcc
100 TARGET_CXX:=$(TARGET_CROSS)g++
101 STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
102 PATCH:=$(SCRIPT_DIR)/patch-kernel.sh
103 SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
104 CP:=cp -fpR
105
106 INSTALL_BIN:=install -m0755
107 INSTALL_DIR:=install -d -m0755
108 INSTALL_DATA:=install -m0644
109 INSTALL_CONF:=install -m0600
110
111 ifneq ($(CONFIG_CCACHE),)
112 # FIXME: move this variable to a better location
113 export CCACHE_DIR=$(STAGING_DIR)/ccache
114 TARGET_CC:= ccache $(TARGET_CC)
115 endif
116
117 TARGET_CONFIGURE_OPTS:= \
118 AR=$(TARGET_CROSS)ar \
119 AS="$(TARGET_CC) -c $(TARGET_CFLAGS)" \
120 LD=$(TARGET_CROSS)ld \
121 NM=$(TARGET_CROSS)nm \
122 CC="$(TARGET_CC)" \
123 GCC="$(TARGET_CC)" \
124 CXX="$(TARGET_CXX)" \
125 RANLIB=$(TARGET_CROSS)ranlib \
126 STRIP=$(TARGET_CROSS)strip \
127 OBJCOPY=$(TARGET_CROSS)objcopy \
128 OBJDUMP=$(TARGET_CROSS)objdump \
129 SIZE=$(TARGET_CROSS)size
130
131 # strip an entire directory
132 ifneq ($(CONFIG_BUILD_DEVELOPER_SYSTEM),)
133 RSTRIP:=:
134 else
135 RSTRIP:= \
136 NM="$(TARGET_CROSS)nm" \
137 STRIP="$(STRIP)" \
138 STRIP_KMOD="$(TARGET_CROSS)strip --strip-unneeded --remove-section=.comment" \
139 $(SCRIPT_DIR)/rstrip.sh
140 endif
141
142 ifeq ($(CONFIG_ENABLE_LOCALE),true)
143 DISABLE_NLS:=
144 else
145 DISABLE_NLS:=--disable-nls
146 endif
147
148 ifneq ($(CONFIG_LARGEFILE),y)
149 DISABLE_LARGEFILE= --disable-largefile
150 endif
151
152 ifeq ($(CONFIG_TAR_VERBOSITY),y)
153 TAR_OPTIONS:=-xvf -
154 else
155 TAR_OPTIONS:=-xf -
156 endif
157
158 define shvar
159 V_$(subst .,_,$(subst -,_,$(subst /,_,$(1))))
160 endef
161
162 define shexport
163 $(call shvar,$(1))=$$(call $(1))
164 export $(call shvar,$(1))
165 endef
166
167 # file extension
168 ext=$(word $(words $(subst ., ,$(1))),$(subst ., ,$(1)))
169
170 all:
171 FORCE: ;
172 .PHONY: FORCE
173
174 endif #__rules_inc