# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
--include $(INCLUDE_DIR)/modules-$(KERNEL).mk
+KERNEL_BUILD:=1
-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$(KERNEL)
+ifeq ($(DUMP),1)
+ all: dumpinfo
+else
+ all: compile
+endif
+KERNEL:=2.$(word 2,$(subst ., ,$(strip $(LINUX_VERSION))))
-KERNEL_IDIR:=$(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)
+include $(INCLUDE_DIR)/host.mk
+include $(INCLUDE_DIR)/kernel.mk
-$(TARGETS): $(PACKAGE_DIR)
+LINUX_CONFIG:=./config
-$(PACKAGE_DIR):
- mkdir -p $@
+ifneq (,$(findstring uml,$(BOARD)))
+ LINUX_KARCH:=um
+else
+ LINUX_KARCH:=$(shell echo $(ARCH) | sed -e 's/i[3-9]86/i386/' \
+ -e 's/mipsel/mips/' \
+ -e 's/mipseb/mips/' \
+ -e 's/powerpc/ppc/' \
+ -e 's/sh[234]/sh/' \
+ -e 's/armeb/arm/' \
+ )
+endif
-$(DL_DIR)/$(LINUX_SOURCE):
- -mkdir -p $(DL_DIR)
- $(SCRIPT_DIR)/download.pl $(DL_DIR) $(LINUX_SOURCE) $(LINUX_KERNEL_MD5SUM) $(LINUX_SITE)
+KERNELNAME=
+ifneq (,$(findstring x86,$(BOARD)))
+ KERNELNAME="bzImage"
+endif
+ifneq (,$(findstring ppc,$(BOARD)))
+ KERNELNAME="uImage"
+endif
+
+
+define Kernel/Prepare/Default
+ bzcat $(DL_DIR)/$(LINUX_SOURCE) | tar -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS)
+ [ -d ../generic-$(KERNEL)/patches ] && $(PATCH) $(LINUX_DIR) ../generic-$(KERNEL)/patches
+ [ -d ./patches ] && $(PATCH) $(LINUX_DIR) ./patches
+endef
+define Kernel/Prepare
+ $(call Kernel/Prepare/Default)
+endef
-$(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
+define Kernel/Configure/2.4
$(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
+endef
+define Kernel/Configure/2.6
$(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=""' >> $(LINUX_DIR)/.config
+endef
+define Kernel/Configure/Default
+ @$(CP) $(LINUX_CONFIG) $(LINUX_DIR)/.config
+ $(call Kernel/Configure/$(KERNEL))
+endef
+define Kernel/Configure
+ $(call Kernel/Configure/Default)
+endef
+
+
+define Kernel/CompileModules/Default
+ $(MAKE) -j$(CONFIG_JLEVEL) -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
+endef
+define Kernel/CompileModules
+ $(call Kernel/CompileModules/Default)
+endef
+
+
+ifeq ($(KERNEL),2.6)
+ ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
+ define Kernel/SetInitramfs
+ mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
+ grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
+ 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/
+ endef
+ else
+ define Kernel/SetInitramfs
+ mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
+ grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
+ rm -f $(BUILD_DIR)/root/init $(BUILD_DIR)/root/etc/init.d/S00initramfs
+ echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
+ endef
+ endif
endif
+define Kernel/CompileImage/Default
+ $(call Kernel/SetInitramfs)
+ $(MAKE) -j$(CONFIG_JLEVEL) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" CC="$(KERNEL_CC)" ARCH=$(LINUX_KARCH) $(KERNELNAME)
+ $(KERNEL_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL)
+endef
+define Kernel/CompileImage
+ $(call Kernel/CompileImage/Default)
+endef
+
+define Kernel/Clean/Default
+ rm -f $(LINUX_DIR)/.linux-compile
+ rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.configured
+ rm -f $(LINUX_KERNEL)
+ $(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
+endef
-$(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)
+define Kernel/Clean
+ $(call Kernel/Clean/Default)
+endef
-$(LINUX_KERNEL): $(LINUX_DIR)/vmlinux
- $(KERNEL_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $< $@
- touch -c $(LINUX_KERNEL)
+define BuildKernel
+ ifneq ($(LINUX_SITE),)
+ $(DL_DIR)/$(LINUX_SOURCE):
+ -mkdir -p $(DL_DIR)
+ $(SCRIPT_DIR)/download.pl $(DL_DIR) $(LINUX_SOURCE) $(LINUX_KERNEL_MD5SUM) $(LINUX_SITE)
+ endif
-$(LINUX_DIR)/.modules_done:
- rm -rf $(KERNEL_BUILD_DIR)/modules
- $(MAKE) -C "$(LINUX_DIR)" CC="$(KERNEL_CC)" CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) modules
- $(MAKE) -C "$(LINUX_DIR)" CC="$(KERNEL_CC)" CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) DEPMOD=true INSTALL_MOD_PATH=$(KERNEL_BUILD_DIR)/modules modules_install
- touch $(LINUX_DIR)/.modules_done
+ $(LINUX_DIR)/.prepared: $(DL_DIR)/$(LINUX_SOURCE)
+ -rm -rf $(KERNEL_BUILD_DIR)
+ -mkdir -p $(KERNEL_BUILD_DIR)
+ $(call Kernel/Prepare)
+ touch $$@
-modules: $(LINUX_DIR)/.modules_done
-packages: $(TARGETS)
+ $(LINUX_DIR)/.configured: $(LINUX_DIR)/.prepared $(LINUX_CONFIG)
+ $(call Kernel/Configure)
+ touch $$@
-$(LINUX_DIR)/.linux-compile:
+ $(LINUX_DIR)/.modules: $(LINUX_DIR)/.configured
+ rm -rf $(KERNEL_BUILD_DIR)/modules
@rm -f $(BUILD_DIR)/linux
ln -sf $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) $(BUILD_DIR)/linux
- @$(MAKE) modules
- @$(MAKE) packages
- 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)" >> $@
-
-pkg-install: FORCE
- @for pkg in $(INSTALL_TARGETS); do \
- $(IPKG) install $$pkg || echo; \
- done
-
-download: $(DL_DIR)/$(LINUX_SOURCE)
-prepare: $(LINUX_DIR)/.configured
- @mkdir -p $(LINUX_DIR) $(PACKAGE_DIR)
-
-compile: prepare $(LINUX_DIR)/.linux-compile
-
-install: compile $(LINUX_KERNEL)
+ $(call Kernel/CompileModules)
+ touch $$@
+
+ $(LINUX_DIR)/.image: $(LINUX_DIR)/.configured FORCE
+ $(call Kernel/CompileImage)
+ touch $$@
+
+ mostlyclean: FORCE
+ $(call Kernel/Clean)
+
+ define BuildKernel
+ endef
+endef
+
+$(eval $(call shexport,Target/Description))
+
+ifeq ($(DUMP),1)
+ dumpinfo:
+ @echo 'Target: $(BOARD)-$(KERNEL)'
+ @echo 'Target-Name: $(BOARDNAME) [$(KERNEL)]'
+ @echo 'Target-Path: $(subst $(TOPDIR)/,,$(PWD))'
+ @echo 'Target-Arch: $(ARCH)'
+ @echo 'Target-Features: $(FEATURES)'
+ @echo 'Linux-Version: $(LINUX_VERSION)'
+ @echo 'Linux-Release: $(LINUX_RELEASE)'
+ @echo 'Linux-Kernel-Arch: $(LINUX_KARCH)'
+ @echo 'Target-Description:'
+ @echo "$$$(call shvar,Target/Description)"
+ @echo '@@'
+else
+ download: $(DL_DIR)/$(LINUX_SOURCE)
+ prepare: $(LINUX_DIR)/.configured $(TMP_DIR)/.kernel.mk
+ compile: $(LINUX_DIR)/.modules
+ install: $(LINUX_DIR)/.image
-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)
+ clean: FORCE
+ rm -f $(STAMP_DIR)/.linux-compile
+ rm -rf $(KERNEL_BUILD_DIR)
-rebuild: FORCE
- -$(MAKE) mostlyclean
- if [ -f $(LINUX_KERNEL) ]; then \
+ rebuild: FORCE
+ @$(MAKE) mostlyclean
+ @if [ -f $(LINUX_KERNEL) ]; then \
$(MAKE) clean; \
fi
- $(MAKE) compile $(MAKE_TRACE)
+ @$(MAKE) compile
+endif
-clean: FORCE
- rm -f $(STAMP_DIR)/.linux-compile
- rm -rf $(KERNEL_BUILD_DIR)
- rm -f $(TARGETS)
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