# # Copyright (C) 2006 OpenWrt.org # # This is free software, licensed under the GNU General Public License v2. # See /LICENSE for more information. # KERNEL_BUILD:=1 include $(INCLUDE_DIR)/prereq.mk -include ./config ifneq ($(CONFIG_ATM),) FEATURES += atm endif ifneq ($(CONFIG_PCI),) FEATURES += pci endif ifneq ($(CONFIG_USB),) FEATURES += usb endif ifneq ($(CONFIG_PCMCIA),) FEATURES += pcmcia endif # remove duplicates FEATURES:=$(sort $(FEATURES)) # For target profile selection - the default set DEFAULT_PACKAGES:=base-files libgcc uclibc bridge busybox dnsmasq dropbear iptables mtd ppp ppp-mod-pppoe mtd ifeq ($(DUMP),1) all: dumpinfo else all: compile endif KERNEL:=2.$(word 2,$(subst ., ,$(strip $(LINUX_VERSION)))) include $(INCLUDE_DIR)/host.mk include $(INCLUDE_DIR)/kernel.mk LINUX_CONFIG:=./config ifneq (,$(findstring uml,$(BOARD))) LINUX_KARCH:=um else LINUX_KARCH:=$(shell echo $(ARCH) | sed -e 's/i[3-9]86/i386/' \ -e 's/mipsel/mips/' \ -e 's/mipseb/mips/' \ -e 's/powerpc/ppc/' \ -e 's/sh[234]/sh/' \ -e 's/armeb/arm/' \ ) endif KERNELNAME= ifneq (,$(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_PLATFORM_DIR)/patches ] && $(PATCH) $(LINUX_DIR) $(GENERIC_PLATFORM_DIR)/patches [ -d ./patches ] && $(PATCH) $(LINUX_DIR) ./patches endef define Kernel/Prepare $(call Kernel/Prepare/Default) endef KERNEL_MAKEOPTS := -C $(LINUX_DIR) \ CROSS_COMPILE="$(KERNEL_CROSS)" \ ARCH="$(LINUX_KARCH)" \ CONFIG_SHELL="$(BASH)" define Kernel/Configure/2.4 $(SED) "s,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile $(MAKE) $(KERNEL_MAKEOPTS) CC="$(KERNEL_CC)" oldconfig include/linux/compile.h include/linux/version.h $(MAKE) $(KERNEL_MAKEOPTS) dep endef define Kernel/Configure/2.6 $(MAKE) $(KERNEL_MAKEOPTS) CC="$(KERNEL_CC)" oldconfig prepare scripts 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) $(KERNEL_MAKEOPTS) CC="$(KERNEL_CC)" modules $(MAKE) $(KERNEL_MAKEOPTS) CC="$(KERNEL_CC)" 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_PLATFORM_DIR)/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) $(KERNEL_MAKEOPTS) CC="$(KERNEL_CC)" $(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 define Kernel/Clean $(call Kernel/Clean/Default) endef define BuildKernel ifneq ($(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)/.prepared: $(DL_DIR)/$(LINUX_SOURCE) -rm -rf $(KERNEL_BUILD_DIR) -mkdir -p $(KERNEL_BUILD_DIR) $(call Kernel/Prepare) touch $$@ $(LINUX_DIR)/.configured: $(LINUX_DIR)/.prepared $(LINUX_CONFIG) $(call Kernel/Configure) touch $$@ $(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 $(call Kernel/CompileModules) touch $$@ $(LINUX_DIR)/.image: $(LINUX_DIR)/.configured FORCE $(call Kernel/CompileImage) touch $$@ mostlyclean: FORCE $(call Kernel/Clean) ifeq ($(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:' @getvar $(call shvar,Target/Description) @echo '@@' @echo 'Default-Packages: $(DEFAULT_PACKAGES)' ifneq ($(DUMPINFO),) @$(DUMPINFO) endif endif define BuildKernel endef endef define Profile/Default NAME:= PACKAGES:= endef define Profile $(eval $(call Profile/Default)) $(eval $(call Profile/$(1))) DUMPINFO += \ echo "Target-Profile: $(1)"; \ echo "Target-Profile-Name: $(NAME)"; \ echo "Target-Profile-Packages: $(PACKAGES)"; endef $(eval $(call shexport,Target/Description)) download: $(DL_DIR)/$(LINUX_SOURCE) prepare: $(LINUX_DIR)/.configured $(TMP_DIR)/.kernel.mk compile: $(LINUX_DIR)/.modules install: $(LINUX_DIR)/.image clean: FORCE rm -f $(STAMP_DIR)/.linux-compile rm -rf $(KERNEL_BUILD_DIR) rebuild: FORCE @$(MAKE) mostlyclean @if [ -f $(LINUX_KERNEL) ]; then \ $(MAKE) clean; \ fi @$(MAKE) compile