make the kernel compile process more generic
[openwrt.git] / openwrt / rules.mk
1 include $(TOPDIR)/.config
2 MAKE1=make
3 MAKEFLAGS=-j$(BR2_JLEVEL)
4
5 # Strip off the annoying quoting
6 ARCH:=$(strip $(subst ",, $(BR2_ARCH)))
7 #"
8 WGET:=$(strip $(subst ",, $(BR2_WGET)))
9 #"
10
11 GCC_VERSION:=$(strip $(subst ",, $(BR2_GCC_VERSION)))
12 #"
13 GCC_USE_SJLJ_EXCEPTIONS:=$(strip $(subst ",, $(BR2_GCC_USE_SJLJ_EXCEPTIONS)))
14 #"
15 TARGET_OPTIMIZATION:=$(strip $(subst ",, $(BR2_TARGET_OPTIMIZATION)))
16 #""
17
18
19 ifeq ($(BR2_SOFT_FLOAT),y)
20 # gcc 3.4.x soft float configuration is different than previous versions.
21 ifeq ($(findstring 3.4.,$(GCC_VERSION)),3.4.)
22 SOFT_FLOAT_CONFIG_OPTION:=--with-float=soft
23 else
24 SOFT_FLOAT_CONFIG_OPTION:=--without-float
25 endif
26 TARGET_SOFT_FLOAT:=-msoft-float
27 ARCH_FPU_SUFFIX:=_nofpu
28 else
29 SOFT_FLOAT_CONFIG_OPTION:=
30 TARGET_SOFT_FLOAT:=
31 ARCH_FPU_SUFFIX:=
32 endif
33
34
35 ifeq ($(BR2_TAR_VERBOSITY),y)
36 TAR_OPTIONS=-xvf
37 else
38 TAR_OPTIONS=-xf
39 endif
40
41 ifneq ($(BR2_LARGEFILE),y)
42 DISABLE_LARGEFILE= --disable-largefile
43 endif
44 TARGET_CFLAGS:=$(TARGET_OPTIMIZATION) $(TARGET_DEBUGGING)
45
46 OPTIMIZE_FOR_CPU=$(ARCH)
47 HOSTCC:=gcc
48 BASE_DIR:=$(TOPDIR)
49 DL_DIR:=$(BASE_DIR)/dl
50 BUILD_DIR:=$(BASE_DIR)/build_$(ARCH)$(ARCH_FPU_SUFFIX)
51 SCRIPT_DIR:=$(BASE_DIR)/scripts
52 BIN_DIR:=$(BASE_DIR)/bin
53 STAMP_DIR:=$(BUILD_DIR)/stamp
54 PACKAGE_DIR:=$(BIN_DIR)/packages
55 TARGET_DIR:=$(BUILD_DIR)/root
56 STAMP_DIR:=$(BUILD_DIR)/stamp
57 TOOL_BUILD_DIR=$(BASE_DIR)/toolchain_build_$(ARCH)$(ARCH_FPU_SUFFIX)
58 # Strip off the annoying quoting
59 STAGING_DIR:=$(strip $(subst ",, $(BR2_STAGING_DIR)))
60 #"
61 TARGET_PATH=$(STAGING_DIR)/usr/bin:$(STAGING_DIR)/bin:/bin:/sbin:/usr/bin:/usr/sbin
62 IMAGE:=$(BUILD_DIR)/root_fs_$(ARCH)$(ARCH_FPU_SUFFIX)
63 REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux-uclibc
64 GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux
65 KERNEL_CROSS:=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-uclibc-
66 TARGET_CROSS:=$(STAGING_DIR)/bin/$(OPTIMIZE_FOR_CPU)-linux-uclibc-
67 TARGET_CC:=$(TARGET_CROSS)gcc
68 #STRIP:=$(TARGET_CROSS)strip --remove-section=.comment --remove-section=.note
69 STRIP:=$(STAGING_DIR)/bin/sstrip
70 PATCH=$(SCRIPT_DIR)/patch-kernel.sh
71 SED:=$(STAGING_DIR)/bin/sed -i -e
72 LINUX_DIR:=$(BUILD_DIR)/linux
73 LINUX_HEADERS_DIR:=$(TOOL_BUILD_DIR)/linux
74
75
76 HOST_ARCH:=$(shell $(HOSTCC) -dumpmachine | sed -e s'/-.*//' \
77 -e 's/sparc.*/sparc/' \
78 -e 's/arm.*/arm/g' \
79 -e 's/m68k.*/m68k/' \
80 -e 's/ppc/powerpc/g' \
81 -e 's/v850.*/v850/g' \
82 -e 's/sh[234]/sh/' \
83 -e 's/mips-.*/mips/' \
84 -e 's/mipsel-.*/mipsel/' \
85 -e 's/cris.*/cris/' \
86 -e 's/i[3-9]86/i386/' \
87 )
88 GNU_HOST_NAME:=$(HOST_ARCH)-pc-linux-gnu
89 TARGET_CONFIGURE_OPTS=PATH=$(TARGET_PATH) \
90 AR=$(TARGET_CROSS)ar \
91 AS=$(TARGET_CROSS)as \
92 LD=$(TARGET_CROSS)ld \
93 NM=$(TARGET_CROSS)nm \
94 CC=$(TARGET_CROSS)gcc \
95 GCC=$(TARGET_CROSS)gcc \
96 CXX=$(TARGET_CROSS)g++ \
97 RANLIB=$(TARGET_CROSS)ranlib
98
99 ifeq ($(ENABLE_LOCALE),true)
100 DISABLE_NLS:=
101 else
102 DISABLE_NLS:=--disable-nls
103 endif
104
105 ifeq ($(BR2_ENABLE_MULTILIB),y)
106 MULTILIB:=--enable-multilib
107 endif
108
109
110 # invoke ipkg with configuration in $(STAGING_DIR)/etc/ipkg.conf
111 IPKG := IPKG_INSTROOT=$(TARGET_DIR) IPKG_CONF_DIR=$(STAGING_DIR)/etc $(SCRIPT_DIR)/ipkg -force-defaults -force-depends
112 IPKG_STATE_DIR := $(TARGET_DIR)/usr/lib/ipkg
113
114 # invoke ipkg-build with some default options
115 IPKG_BUILD := PATH="$(TARGET_PATH)" ipkg-build -c -o root -g root
116
117 # where to build (and put) .ipk packages
118 IPKG_TARGET_DIR := $(PACKAGE_DIR)
119
120 RSTRIP:=STRIP="$(STRIP)" $(SCRIPT_DIR)/rstrip.sh
121 RSTRIP_KMOD:=STRIP="$(TARGET_CROSS)strip --strip-unneeded --remove-section=.comment" $(SCRIPT_DIR)/rstrip.sh
122
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