2 # Copyright (C) 2006-2009 OpenWrt.org
4 # This is free software, licensed under the GNU General Public License v2.
5 # See /LICENSE for more information.
7 include $(TOPDIR)/rules.mk
9 KERNEL_BUILD_DIR := $(BUILD_DIR_TOOLCHAIN)
10 BUILD_DIR := $(KERNEL_BUILD_DIR)
15 include $(INCLUDE_DIR)/kernel.mk
18 PKG_VERSION:=$(LINUX_VERSION)
19 PKG_SOURCE:=$(LINUX_SOURCE)
20 PKG_SOURCE_URL:=$(LINUX_SITE)
21 HOST_BUILD_DIR:=$(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
22 PKG_MD5SUM:=$(LINUX_KERNEL_MD5SUM)
23 LINUX_DIR := $(HOST_BUILD_DIR)
25 PATCH_DIR := ./patches$(if $(wildcard ./patches-$(KERNEL_PATCHVER)),-$(KERNEL_PATCHVER))
27 include $(INCLUDE_DIR)/toolchain-build.mk
28 include $(INCLUDE_DIR)/kernel-defaults.mk
30 ifeq ($(strip $(BOARD)),uml)
31 LINUX_KARCH:=$(subst x86_64,x86,$(subst i386,x86,$(ARCH)))
34 LINUX_HAS_HEADERS_INSTALL:=y
36 KMAKE := $(MAKE) -C $(HOST_BUILD_DIR) \
39 CFLAGS="$(TARGET_CFLAGS)" \
40 CROSS_COMPILE=$(TARGET_CROSS) \
44 define Host/Prepare/all
45 mkdir -p $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr
47 INSTALL_HDR_PATH="$(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/" \
49 if [ -d $(HOST_BUILD_DIR)/arch/$(LINUX_KARCH)/include/asm ]; then \
50 mkdir -p $(HOST_BUILD_DIR)/include/asm-$(LINUX_KARCH); \
52 $(HOST_BUILD_DIR)/arch/$(LINUX_KARCH)/include/asm/. \
53 $(HOST_BUILD_DIR)/include/asm-$(LINUX_KARCH)/; \
57 # XXX: the following is needed to build lzma-loader
58 define Host/Prepare/lzma
60 $(HOST_BUILD_DIR)/include/asm-mips/asm.h \
61 $(HOST_BUILD_DIR)/include/asm-mips/regdef.h \
62 $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include/asm/
65 define Host/Prepare/post/cris
67 $(HOST_BUILD_DIR)/include/linux/user.h \
68 $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include/linux/
69 ln -snf $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include/arch-v10/arch \
70 $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include/arch
71 $(SED) '/#include <asm\/page\.h>/d' $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include/asm/user.h
74 define Host/Prepare/post/ubicom32
76 $(HOST_BUILD_DIR)/arch/ubicom32/include/asm/elf.h \
77 $(HOST_BUILD_DIR)/arch/ubicom32/include/asm/user.h \
78 $(HOST_BUILD_DIR)/arch/ubicom32/include/asm/page.h \
79 $(HOST_BUILD_DIR)/arch/ubicom32/include/asm/page_offset.h \
80 $(BUILD_DIR_TOOLCHAIN)/linux-dev/usr/include/asm/
83 define Host/Prepare/post/mips
84 $(call Host/Prepare/lzma)
87 define Host/Prepare/post/mipsel
88 $(call Host/Prepare/lzma)
92 $(call Kernel/Prepare/Default)
93 ln -sf linux-$(LINUX_VERSION) $(BUILD_DIR_TOOLCHAIN)/linux
94 $(SED) 's/@expr length/@-expr length/' $(HOST_BUILD_DIR)/Makefile
95 yes '' | $(KMAKE) oldconfig
96 $(call Host/Prepare/all)
97 $(call Host/Prepare/post/$(ARCH))
100 define Host/Configure
107 $(CP) $(BUILD_DIR_TOOLCHAIN)/linux-dev/* $(TOOLCHAIN_DIR)/
113 $(BUILD_DIR_TOOLCHAIN)/linux \
114 $(BUILD_DIR_TOOLCHAIN)/linux-dev
117 $(eval $(call HostBuild))