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#
# Copyright (C) 2006 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(INCLUDE_DIR)/host.mk
-include $(INCLUDE_DIR)/modules-$(KERNEL).mk
LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
LINUX_SITE=http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL) \
http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL) \
http://www.kernel.org/pub/linux/kernel/v$(KERNEL) \
http://www.de.kernel.org/pub/linux/kernel/v$(KERNEL)
KERNEL_IDIR:=$(KERNEL_BUILD_DIR)/kernel-ipkg
KERNEL_IPKG:=$(KERNEL_BUILD_DIR)/kernel_$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)_$(ARCH).ipk
TARGETS += $(KERNEL_IPKG)
INSTALL_TARGETS += $(KERNEL_IPKG)
LINUX_KARCH:=$(shell echo $(ARCH) | sed -e 's/i[3-9]86/i386/' \
-e 's/mipsel/mips/' \
-e 's/mipseb/mips/' \
-e 's/powerpc/ppc/' \
-e 's/sh[234]/sh/' \
-e 's/armeb/arm/' \
)
$(TARGETS): $(PACKAGE_DIR)
$(PACKAGE_DIR):
mkdir -p $@
$(DL_DIR)/$(LINUX_SOURCE):
-mkdir -p $(DL_DIR)
$(SCRIPT_DIR)/download.pl $(DL_DIR) $(LINUX_SOURCE) $(LINUX_KERNEL_MD5SUM) $(LINUX_SITE)
$(LINUX_DIR)/.unpacked: $(DL_DIR)/$(LINUX_SOURCE)
-mkdir -p $(KERNEL_BUILD_DIR)
bzcat $(DL_DIR)/$(LINUX_SOURCE) | tar -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS) -
touch $@
ifeq ($(KERNEL),2.4)
$(LINUX_DIR)/.configured: $(LINUX_DIR)/.patched
$(SED) "s,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile
$(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" CC="$(KERNEL_CC)" ARCH=$(LINUX_KARCH) oldconfig include/linux/compile.h include/linux/version.h
touch $@
$(LINUX_DIR)/.depend_done: $(LINUX_DIR)/.configured
$(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) dep
touch $@
$(LINUX_DIR)/vmlinux: $(LINUX_DIR)/.depend_done
else
$(LINUX_DIR)/.configured: $(LINUX_DIR)/.patched
$(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" CC="$(KERNEL_CC)" ARCH=$(LINUX_KARCH) oldconfig prepare scripts
touch $@
endif
ramdisk-config: $(LINUX_DIR)/.configured FORCE
mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
echo 'CONFIG_INITRAMFS_SOURCE="../../root"' >> $(LINUX_DIR)/.config
echo 'CONFIG_INITRAMFS_ROOT_UID=0' >> $(LINUX_DIR)/.config
echo 'CONFIG_INITRAMFS_ROOT_GID=0' >> $(LINUX_DIR)/.config
mkdir -p $(BUILD_DIR)/root/etc/init.d
$(CP) ../generic-2.6/files/init $(BUILD_DIR)/root/
else
rm -f $(BUILD_DIR)/root/init $(BUILD_DIR)/root/etc/init.d/S00initramfs
echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
endif
$(LINUX_DIR)/vmlinux: $(LINUX_DIR)/.linux-compile pkg-install ramdisk-config
$(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" CC="$(KERNEL_CC)" ARCH=$(LINUX_KARCH) $(KERNELNAME)
$(LINUX_KERNEL): $(LINUX_DIR)/vmlinux
$(KERNEL_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $< $@
touch -c $(LINUX_KERNEL)
$(LINUX_DIR)/.modules_done:
rm -rf $(KERNEL_BUILD_DIR)/modules
$(MAKE) -C "$(LINUX_DIR)" CROSS_COMPILE="$(KERNEL_CROSS)" CC="$(KERNEL_CC)" ARCH=$(LINUX_KARCH) modules
$(MAKE) -C "$(LINUX_DIR)" CROSS_COMPILE="$(KERNEL_CROSS)" CC="$(KERNEL_CC)" ARCH=$(LINUX_KARCH) DEPMOD=true INSTALL_MOD_PATH=$(KERNEL_BUILD_DIR)/modules modules_install
touch $(LINUX_DIR)/.modules_done
modules: $(LINUX_DIR)/.modules_done
packages: $(TARGETS)
$(LINUX_DIR)/.linux-compile:
@rm -f $(BUILD_DIR)/linux
ln -sf $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) $(BUILD_DIR)/linux
@$(MAKE) modules
touch $@
$(KERNEL_IPKG):
rm -rf $(KERNEL_IDIR)
mkdir -p $(KERNEL_IDIR)/etc
$(SCRIPT_DIR)/make-ipkg-dir.sh $(KERNEL_IDIR) ../control/kernel.control $(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE) $(ARCH)
if [ -f ./config/$(BOARD).modules ]; then \
cp ./config/$(BOARD).modules $(KERNEL_IDIR)/etc/modules; \
fi
$(IPKG_BUILD) $(KERNEL_IDIR) $(KERNEL_BUILD_DIR)
$(TOPDIR)/.kernel.mk: $(TOPDIR)/target/linux/$(BOARD)-$(KERNEL)/Makefile
echo "CONFIG_BOARD:=$(BOARD)" > $@
echo "CONFIG_KERNEL:=$(KERNEL)" >> $@
echo "CONFIG_LINUX_VERSION:=$(LINUX_VERSION)" >> $@
echo "CONFIG_LINUX_RELEASE:=$(LINUX_RELEASE)" >> $@
echo "CONFIG_LINUX_KARCH:=$(LINUX_KARCH)" >> $@
pkg-install: FORCE
@for pkg in $(INSTALL_TARGETS); do \
$(IPKG) install $$pkg || echo; \
done
download: $(DL_DIR)/$(LINUX_SOURCE)
prepare: $(LINUX_DIR)/.configured
@mkdir -p $(LINUX_DIR) $(PACKAGE_DIR)
compile: prepare $(LINUX_DIR)/.linux-compile
@$(MAKE) packages
install: compile $(LINUX_KERNEL)
mostlyclean: FORCE
rm -f $(LINUX_DIR)/.linux-compile
rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.modules_done
rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.drivers-unpacked
$(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
rm -f $(LINUX_KERNEL)
rebuild: FORCE
-$(MAKE) mostlyclean
if [ -f $(LINUX_KERNEL) ]; then \
$(MAKE) clean; \
fi
$(MAKE) compile $(MAKE_TRACE)
clean: FORCE
rm -f $(STAMP_DIR)/.linux-compile
rm -rf $(KERNEL_BUILD_DIR)
rm -f $(TARGETS)
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