################################################################################ # # Setup the kernel headers. I include a generic package of # kernel headers here, so you shouldn't need to include your # own. Be aware these kernel headers _will_ get blown away # by a 'make clean' so don't put anything sacred in here... # ################################################################################ DEFAULT_KERNEL_HEADERS:=$(call qstrip,$(BR2_DEFAULT_KERNEL_HEADERS)) LINUX_HEADERS_SITE:=127.0.0.1 LINUX_HEADERS_SOURCE:=unspecified-kernel-headers LINUX_HEADERS_UNPACK_DIR:=$(TOOLCHAIN_DIR)/linux-libc-headers-null # parse linux version string LNXVER:=$(subst ., , $(strip $(DEFAULT_KERNEL_HEADERS))) VERSION:=$(word 1, $(LNXVER)) PATCHLEVEL:=$(word 2, $(LNXVER)) SUBLEVEL:=$(word 3, $(LNXVER)) EXTRAVERSION:=$(word 4, $(LNXVER)) LOCALVERSION:= # should contain prepended dot SUBLEVEL:=$(if $(SUBLEVEL),.$(SUBLEVEL),) EXTRAVERSION:=$(if $(EXTRAVERSION),.$(EXTRAVERSION),) LINUX_HEADERS_VERSION:=$(VERSION).$(PATCHLEVEL)$(SUBLEVEL)$(EXTRAVERSION) ifeq ($(findstring x2.6.,x$(DEFAULT_KERNEL_HEADERS)),x2.6.) LINUX_HEADERS_SITE:=$(BR2_KERNEL_MIRROR:/=)/linux/kernel/v2.6/ else LINUX_HEADERS_SITE:=$(BR2_KERNEL_MIRROR:/=)/linux/kernel/v3.x/ endif LINUX_HEADERS_SOURCE:=linux-$(LINUX_HEADERS_VERSION).tar.xz LINUX_HEADERS_CAT:=$(XZCAT) LINUX_HEADERS_UNPACK_DIR:=$(TOOLCHAIN_DIR)/linux-$(LINUX_HEADERS_VERSION) LINUX_HEADERS_DIR:=$(TOOLCHAIN_DIR)/linux LINUX_HEADERS_DEPENDS:= $(LINUX_HEADERS_UNPACK_DIR)/.unpacked: $(DL_DIR)/$(LINUX_HEADERS_SOURCE) $(Q)$(call MESSAGE,"Extracting kernel headers") rm -rf $(LINUX_HEADERS_DIR) $(INSTALL) -d $(@D) $(LINUX_HEADERS_CAT) $(DL_DIR)/$(LINUX_HEADERS_SOURCE) | \ tar $(TAR_STRIP_COMPONENTS)=1 -C $(@D) $(TAR_OPTIONS) - touch $@ $(LINUX_HEADERS_UNPACK_DIR)/.patched: $(LINUX_HEADERS_UNPACK_DIR)/.unpacked $(LINUX_HEADERS_DEPENDS) $(Q)$(call MESSAGE,"Patching kernel headers") support/scripts/apply-patches.sh $(LINUX_HEADERS_UNPACK_DIR) toolchain/kernel-headers \ linux-$(LINUX_HEADERS_VERSION)-\*.patch{,.gz,.bz2} ifneq ($(KERNEL_HEADERS_PATCH_DIR),) support/scripts/apply-patches.sh $(LINUX_HEADERS_UNPACK_DIR) $(KERNEL_HEADERS_PATCH_DIR) \ linux-$(LINUX_HEADERS_VERSION)-\*.patch{,.gz,.bz2} endif touch $@ $(LINUX_HEADERS_DIR)/.configured: $(LINUX_HEADERS_UNPACK_DIR)/.patched $(Q)$(call MESSAGE,"Installing kernel headers") (cd $(LINUX_HEADERS_UNPACK_DIR); \ $(MAKE) ARCH=$(KERNEL_ARCH) \ HOSTCC="$(HOSTCC)" HOSTCFLAGS="$(HOSTCFLAGS)" \ HOSTCXX="$(HOSTCXX)" \ INSTALL_HDR_PATH=$(LINUX_HEADERS_DIR) headers_install; \ ) touch $@ $(DL_DIR)/$(LINUX_HEADERS_SOURCE): ifeq ($(BR2_KERNEL_HEADERS_SNAP),y) $(error No local $@ found, cannot continue. Are you sure you wanted to enable BR2_KERNEL_HEADERS_SNAP?) endif $(Q)$(call MESSAGE,"Downloading kernel headers") $(call DOWNLOAD,$(LINUX_HEADERS_SITE:/=)/$(LINUX_HEADERS_SOURCE)) kernel-headers: $(LINUX_HEADERS_DIR)/.configured kernel-headers-source: $(DL_DIR)/$(LINUX_HEADERS_SOURCE) kernel-headers-clean: clean rm -rf $(LINUX_HEADERS_DIR) kernel-headers-dirclean: rm -rf $(LINUX_HEADERS_DIR) rm -rf $(LINUX_HEADERS_UNPACK_DIR) .PHONY: kernel-headers