# # 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 (,$(findstring avr32,$(BOARD))) KERNELNAME="uImage" endif KERNEL_MAKEOPTS := -C $(LINUX_DIR) \ CROSS_COMPILE="$(KERNEL_CROSS)" \ ARCH="$(LINUX_KARCH)" \ KBUILD_HAVE_NLS=no \ CONFIG_SHELL="$(BASH)" ifdef CONFIG_STRIP_KERNEL_EXPORTS KERNEL_MAKEOPTS += \ EXTRA_LDSFLAGS="-I$(KERNEL_BUILD_DIR) -include symtab.h" endif 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 $(CONFIG_EXTERNAL_KERNEL_TREE)),"") ifeq ($(strip $(CONFIG_KERNEL_GIT_CLONE_URI)),"") define Kernel/Prepare/Default bzcat $(DL_DIR)/$(LINUX_SOURCE) | $(TAR) -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS) $(Kernel/Patch) touch $(LINUX_DIR)/.quilt_used endef else ifeq ($(strip $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY)),"") define Kernel/Prepare/Default git clone $(CONFIG_KERNEL_GIT_CLONE_URI) $(LINUX_DIR) endef else define Kernel/Prepare/Default git clone --reference $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY) $(CONFIG_KERNEL_GIT_CLONE_URI) $(LINUX_DIR) endef endif endif 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 -e INITRAMFS -e CONFIG_RD_ -e CONFIG_BLK_DEV_INITRD $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config echo 'CONFIG_BLK_DEV_INITRD=y' >> $(LINUX_DIR)/.config echo 'CONFIG_INITRAMFS_SOURCE="$(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)' >> $(LINUX_DIR)/.config echo "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_NONE),CONFIG_INITRAMFS_COMPRESSION_NONE=y,# CONFIG_INITRAMFS_COMPRESSION_NONE is not set)" >> $(LINUX_DIR)/.config echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_GZIP),CONFIG_INITRAMFS_COMPRESSION_GZIP=y\nCONFIG_RD_GZIP=y,# CONFIG_INITRAMFS_COMPRESSION_GZIP is not set\n# CONFIG_RD_GZIP is not set)" >> $(LINUX_DIR)/.config echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_BZIP2),CONFIG_INITRAMFS_COMPRESSION_BZIP2=y\nCONFIG_RD_BZIP2=y,# CONFIG_INITRAMFS_COMPRESSION_BZIP2 is not set\n# CONFIG_RD_BZIP2 is not set)" >> $(LINUX_DIR)/.config echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZMA),CONFIG_INITRAMFS_COMPRESSION_LZMA=y\nCONFIG_RD_LZMA=y,# CONFIG_INITRAMFS_COMPRESSION_LZMA is not set\n# CONFIG_RD_LZMA is not set)" >> $(LINUX_DIR)/.config echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZO),CONFIG_INITRAMFS_COMPRESSION_LZO=y\nCONFIG_RD_LZO=y,# CONFIG_INITRAMFS_COMPRESSION_LZO is not set\n# CONFIG_RD_LZO is not set)" >> $(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 $(_SINGLE)$(MAKE) $(KERNEL_MAKEOPTS) oldconfig include/linux/compile.h include/linux/version.h $(_SINGLE)$(MAKE) $(KERNEL_MAKEOPTS) dep endef define Kernel/Configure/2.6 -$(_SINGLE)$(MAKE) $(KERNEL_MAKEOPTS) oldconfig prepare scripts endef define Kernel/Configure/Default $(LINUX_CONFCMD) > $(LINUX_DIR)/.config.target echo "$(if $(CONFIG_KERNEL_KALLSYMS),CONFIG_KALLSYMS=y,# CONFIG_KALLSYMS is not set)" >> $(LINUX_DIR)/.config.target echo "$(if $(CONFIG_KERNEL_PROFILING),CONFIG_PROFILING=y,# CONFIG_PROFILING is not set)" >> $(LINUX_DIR)/.config.target echo "$(if $(CONFIG_KERNEL_DEBUG_FS),CONFIG_DEBUG_FS=y,# CONFIG_DEBUG_FS is not set)" >> $(LINUX_DIR)/.config.target echo "# CONFIG_KALLSYMS_EXTRA_PASS is not set" >> $(LINUX_DIR)/.config.target echo "# CONFIG_KALLSYMS_ALL is not set" >> $(LINUX_DIR)/.config.target echo "# CONFIG_KPROBES is not set" >> $(LINUX_DIR)/.config.target $(SED) 's,.*CONFIG_AEABI.*,$(if $(CONFIG_EABI_SUPPORT),CONFIG_AEABI=y,# CONFIG_AEABI is not set),' $(LINUX_DIR)/.config.target $(if $(CONFIG_EABI_SUPPORT),echo '# CONFIG_OABI_COMPAT is not set' >> $(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 /dev/null $(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 OBJCOPY_STRIP = -R .reginfo -R .notes -R .note -R .comment -R .mdebug -R .note.gnu.build-id define Kernel/CompileImage/Default $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),,rm -f $(TARGET_DIR)/init) +$(MAKE) $(KERNEL_MAKEOPTS) $(KERNELNAME) $(KERNEL_CROSS)objcopy -O binary $(OBJCOPY_STRIP) -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL) $(KERNEL_CROSS)objcopy $(OBJCOPY_STRIP) -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) $(_SINGLE)$(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean endef