# # Copyright (C) 2006-2007 OpenWrt.org # # This is free software, licensed under the GNU General Public License v2. # See /LICENSE for more information. # KERNELNAME= ifneq (,$(findstring x86,$(BOARD))) KERNELNAME="bzImage" endif ifneq (,$(findstring rdc,$(BOARD))) KERNELNAME="bzImage" endif ifneq (,$(findstring ppc,$(BOARD))) KERNELNAME="uImage" endif ifneq (,$(findstring avr32,$(BOARD))) KERNELNAME="uImage" endif KERNEL_MAKEOPTS := -C $(LINUX_DIR) \ CROSS_COMPILE="$(KERNEL_CROSS)" \ ARCH="$(LINUX_KARCH)" \ KBUILD_HAVE_NLS=no \ CONFIG_SHELL="$(BASH)" INITRAMFS_EXTRA_FILES ?= $(GENERIC_PLATFORM_DIR)/image/initramfs-base-files.txt ifneq (,$(KERNEL_CC)) KERNEL_MAKEOPTS += CC="$(KERNEL_CC)" endif # defined in quilt.mk Kernel/Patch:=$(Kernel/Patch/Default) ifeq ($(strip $(CONFIG_EXTERNAL_KERNEL_TREE)),"") define Kernel/Prepare/Default bzcat $(DL_DIR)/$(LINUX_SOURCE) | $(TAR) -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS) $(Kernel/Patch) $(if $(QUILT),touch $(LINUX_DIR)/.quilt_used) endef else define Kernel/Prepare/Default mkdir -p $(KERNEL_BUILD_DIR) if [ -d $(LINUX_DIR) ]; then \ rmdir $(LINUX_DIR); \ fi ln -s $(CONFIG_EXTERNAL_KERNEL_TREE) $(LINUX_DIR) endef endif ifeq ($(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 > $(LINUX_DIR)/.config echo 'CONFIG_INITRAMFS_SOURCE="$(strip $(TARGET_DIR) $(INITRAMFS_EXTRA_FILES))"' >> $(LINUX_DIR)/.config echo 'CONFIG_INITRAMFS_ROOT_UID=$(shell id -u)' >> $(LINUX_DIR)/.config echo 'CONFIG_INITRAMFS_ROOT_GID=$(shell id -g)' >> $(LINUX_DIR)/.config endef else 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=""' >> $(LINUX_DIR)/.config endef endif endif define Kernel/Configure/2.4 $(SED) "s,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile $(MAKE) $(KERNEL_MAKEOPTS) oldconfig include/linux/compile.h include/linux/version.h $(MAKE) $(KERNEL_MAKEOPTS) dep endef define Kernel/Configure/2.6 -$(MAKE) $(KERNEL_MAKEOPTS) oldconfig prepare scripts endef define Kernel/Configure/Default $(LINUX_CONFCMD) > $(LINUX_DIR)/.config.target $(SCRIPT_DIR)/metadata.pl kconfig $(TMP_DIR)/.packageinfo $(TOPDIR)/.config > $(LINUX_DIR)/.config.override $(SCRIPT_DIR)/kconfig.pl 'm+' $(LINUX_DIR)/.config.target $(LINUX_DIR)/.config.override > $(LINUX_DIR)/.config $(call Kernel/SetInitramfs) $(call Kernel/Configure/$(KERNEL)) rm -rf $(KERNEL_BUILD_DIR)/modules endef define Kernel/CompileModules/Default rm -f $(LINUX_DIR)/vmlinux $(LINUX_DIR)/System.map $(MAKE) $(KERNEL_MAKEOPTS) modules endef define Kernel/CompileImage/Default $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),,rm -f $(TARGET_DIR)/init) $(MAKE) $(KERNEL_MAKEOPTS) $(KERNELNAME) $(KERNEL_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL) $(KERNEL_CROSS)objcopy -R .reginfo -R .note -R .comment -R .mdebug -S $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux.elf endef define Kernel/Clean/Default rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.configured rm -f $(LINUX_KERNEL) $(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean endef