############################################################# # # Linux kernel targets # # Note: If you have any patches to apply, create the directory # sources/kernel-patches and put your patches in there and number # them in the order you wish to apply them... i.e. # # sources/kernel-patches/001-my-special-stuff.bz2 # sources/kernel-patches/003-gcc-Os.bz2 # sources/kernel-patches/004_no-warnings.bz2 # sources/kernel-patches/030-lowlatency-mini.bz2 # sources/kernel-patches/031-lowlatency-fixes-5.bz2 # sources/kernel-patches/099-shutup.bz2 # etc... # # these patches will all be applied by the patch-kernel.sh # script (which will also abort the build if it finds rejects) # -Erik # ############################################################# ifneq ($(filter $(TARGETS),linux),) # Base version of Linux kernel that we need to download DOWNLOAD_LINUX_VERSION=2.6.16 # Version of Linux kernel AFTER applying all patches LINUX_VERSION=2.6.16.20-erik # File name for the Linux kernel binary LINUX_KERNEL=linux-kernel-$(LINUX_VERSION)-$(ARCH).srec # Linux kernel configuration file LINUX_KCONFIG=$(ALCHEMY_DBAU1500_PATH)/linux.config # kernel patches LINUX_PATCH_DIR=target/device/AMD/DBAu1500/kernel-patches/ LINUX_FORMAT=vmlinux LINUX_KARCH:=$(shell echo $(ARCH) | sed -e 's/i[3-9]86/i386/' \ -e 's/mipsel/mips/' \ -e 's/powerpc/ppc/' \ -e 's/sh[234]/sh/' \ ) LINUX_BINLOC=$(LINUX_FORMAT) LINUX_DIR=$(BUILD_DIR)/linux-$(LINUX_VERSION) LINUX_SOURCE=linux-$(DOWNLOAD_LINUX_VERSION).tar.bz2 LINUX_CAT:=$(BZCAT) LINUX_SITE=http://www.kernel.org/pub/linux/kernel/v2.6 # Used by pcmcia-cs and others LINUX_SOURCE_DIR=$(LINUX_DIR) $(DL_DIR)/$(LINUX_SOURCE): -mkdir -p $(DL_DIR) $(WGET) -P $(DL_DIR) $(LINUX_SITE)/$(LINUX_SOURCE) $(LINUX_DIR)/.unpacked: $(DL_DIR)/$(LINUX_SOURCE) -mkdir -p $(TOOL_BUILD_DIR) -(cd $(TOOL_BUILD_DIR); ln -snf $(LINUX_DIR) linux) $(LINUX_CAT) $(DL_DIR)/$(LINUX_SOURCE) | tar -C $(BUILD_DIR) $(TAR_OPTIONS) - ifneq ($(DOWNLOAD_LINUX_VERSION),$(LINUX_VERSION)) # Rename the dir from the downloaded version to the AFTER patch version mv -f $(BUILD_DIR)/linux-$(DOWNLOAD_LINUX_VERSION) $(BUILD_DIR)/linux-$(LINUX_VERSION) endif toolchain/patch-kernel.sh $(LINUX_DIR) $(LINUX_PATCH_DIR) touch $(LINUX_DIR)/.unpacked $(LINUX_KCONFIG): @if [ ! -f "$(LINUX_KCONFIG)" ] ; then \ echo ""; \ echo "You should create a .config for your kernel"; \ echo "and install it as $(LINUX_KCONFIG)"; \ echo ""; \ sleep 5; \ fi; $(LINUX_DIR)/.configured $(BUILD_DIR)/linux/.configured: $(LINUX_DIR)/.unpacked $(LINUX_KCONFIG) $(SED) "s,^ARCH.*,ARCH=$(LINUX_KARCH),g;" $(LINUX_DIR)/Makefile $(SED) "s,^CROSS_COMPILE.*,CROSS_COMPILE=$(KERNEL_CROSS),g;" $(LINUX_DIR)/Makefile -cp $(LINUX_KCONFIG) $(LINUX_DIR)/.config ifeq ($(strip $(BR2_mips)),y) $(SED) "s,CONFIG_CPU_LITTLE_ENDIAN=y,# CONFIG_CPU_LITTLE_ENDIAN is not set\n# CONFIG_BINFMT_IRIX is not set," $(LINUX_DIR)/.config endif $(MAKE) PATH=$(TARGET_PATH) -C $(LINUX_DIR) oldconfig include/linux/version.h touch $(LINUX_DIR)/.configured $(LINUX_DIR)/.depend_done: $(LINUX_DIR)/.configured $(MAKE) PATH=$(TARGET_PATH) -C $(LINUX_DIR) dep touch $(LINUX_DIR)/.depend_done $(LINUX_DIR)/$(LINUX_BINLOC): $(LINUX_DIR)/.depend_done $(MAKE) PATH=$(TARGET_PATH) -C $(LINUX_DIR) $(LINUX_FORMAT) $(MAKE) PATH=$(TARGET_PATH) -C $(LINUX_DIR) modules $(LINUX_KERNEL): $(LINUX_DIR)/$(LINUX_BINLOC) $(KERNEL_CROSS)objcopy -O srec $(LINUX_DIR)/$(LINUX_BINLOC) $(LINUX_KERNEL) touch -c $(LINUX_KERNEL) $(TARGET_DIR)/lib/modules/$(LINUX_VERSION)/modules.dep: $(LINUX_KERNEL) cross-depmod rm -rf $(TARGET_DIR)/lib/modules rm -f $(TARGET_DIR)/sbin/cardmgr $(MAKE) PATH=$(TARGET_PATH) -C $(LINUX_DIR) \ DEPMOD=$(STAGING_DIR)/usr/bin/$(GNU_TARGET_NAME)-depmod \ INSTALL_MOD_PATH=$(TARGET_DIR) modules_install $(STAGING_DIR)/include/linux/version.h: $(LINUX_DIR)/.configured mkdir -p $(STAGING_DIR)/include tar -ch -C $(LINUX_DIR)/include -f - linux | tar -xf - -C $(STAGING_DIR)/include/ tar -ch -C $(LINUX_DIR)/include -f - asm | tar -xf - -C $(STAGING_DIR)/include/ linux: $(STAGING_DIR)/include/linux/version.h $(TARGET_DIR)/lib/modules/$(LINUX_VERSION)/modules.dep linux-source: $(DL_DIR)/$(LINUX_SOURCE) # This has been renamed so we do _NOT_ by default run this on 'make clean' linuxclean: clean rm -f $(LINUX_KERNEL) -$(MAKE) PATH=$(TARGET_PATH) -C $(LINUX_DIR) clean linux-dirclean: rm -rf $(LINUX_DIR) endif