linux: convert to the GENTARGETS infrastructure
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Thomas Petazzoni
Peter Korsgaard
parent
af52661d19
commit
9af0ee86b7
124
linux/linux.mk
124
linux/linux.mk
@ -7,16 +7,18 @@ LINUX_VERSION=$(call qstrip,$(BR2_LINUX_KERNEL_VERSION))
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# Compute LINUX_SOURCE and LINUX_SITE from the configuration
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ifeq ($(LINUX_VERSION),custom)
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LINUX_TARBALL:=$(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION))
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LINUX_SITE:=$(dir $(LINUX_TARBALL))
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LINUX_SOURCE:=$(notdir $(LINUX_TARBALL))
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LINUX_TARBALL = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION))
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LINUX_SITE = $(dir $(LINUX_TARBALL))
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LINUX_SOURCE = $(notdir $(LINUX_TARBALL))
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else
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LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
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LINUX_SITE:=$(BR2_KERNEL_MIRROR)/linux/kernel/v2.6/
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LINUX_SOURCE = linux-$(LINUX_VERSION).tar.bz2
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LINUX_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v2.6/
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endif
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LINUX_DIR:=$(BUILD_DIR)/linux-$(LINUX_VERSION)
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LINUX_PATCH=$(call qstrip,$(BR2_LINUX_KERNEL_PATCH))
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LINUX_PATCHES = $(call qstrip,$(BR2_LINUX_KERNEL_PATCH))
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LINUX_INSTALL_IMAGES = YES
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LINUX_DEPENDENCIES += host-module-init-tools
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LINUX_MAKE_FLAGS = \
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HOSTCC="$(HOSTCC)" \
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@ -74,27 +76,17 @@ LINUX_IMAGE_PATH=$(KERNEL_ARCH_PATH)/boot/$(LINUX_IMAGE_NAME)
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endif
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endif # BR2_LINUX_KERNEL_VMLINUX
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# Download
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$(LINUX_DIR)/.stamp_downloaded:
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@$(call MESSAGE,"Downloading kernel")
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$(call DOWNLOAD,$(LINUX_SITE),$(LINUX_SOURCE))
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$(foreach patch,$(filter ftp://% http://%,$(LINUX_PATCH)),\
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define LINUX_DOWNLOAD_PATCHES
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$(if $(LINUX_PATCHES),
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@$(call MESSAGE,"Download additional patches"))
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$(foreach patch,$(filter ftp://% http://%,$(LINUX_PATCHES)),\
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$(call DOWNLOAD,$(dir $(patch)),$(notdir $(patch)))$(sep))
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mkdir -p $(@D)
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touch $@
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endef
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# Extraction
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$(LINUX_DIR)/.stamp_extracted: $(LINUX_DIR)/.stamp_downloaded
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@$(call MESSAGE,"Extracting kernel")
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mkdir -p $(@D)
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$(Q)$(INFLATE$(suffix $(LINUX_SOURCE))) $(DL_DIR)/$(LINUX_SOURCE) | \
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tar -C $(@D) $(TAR_STRIP_COMPONENTS)=1 $(TAR_OPTIONS) -
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$(Q)touch $@
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LINUX_POST_DOWNLOAD_HOOKS += LINUX_DOWNLOAD_PATCHES
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# Patch
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$(LINUX_DIR)/.stamp_patched: $(LINUX_DIR)/.stamp_extracted
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@$(call MESSAGE,"Patching kernel")
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for p in $(LINUX_PATCH) ; do \
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define LINUX_APPLY_PATCHES
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for p in $(LINUX_PATCHES) ; do \
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if echo $$p | grep -q -E "^ftp://|^http://" ; then \
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toolchain/patch-kernel.sh $(@D) $(DL_DIR) `basename $$p` ; \
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elif test -d $$p ; then \
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@ -103,64 +95,66 @@ $(LINUX_DIR)/.stamp_patched: $(LINUX_DIR)/.stamp_extracted
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toolchain/patch-kernel.sh $(@D) `dirname $$p` `basename $$p` ; \
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fi \
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done
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$(Q)touch $@
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endef
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LINUX_POST_PATCH_HOOKS += LINUX_APPLY_PATCHES
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# Configuration
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$(LINUX_DIR)/.stamp_configured: $(LINUX_DIR)/.stamp_patched
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@$(call MESSAGE,"Configuring kernel")
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ifeq ($(BR2_LINUX_KERNEL_USE_DEFCONFIG),y)
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$(TARGET_MAKE_ENV) $(MAKE1) $(LINUX_MAKE_FLAGS) -C $(@D) $(call qstrip,$(BR2_LINUX_KERNEL_DEFCONFIG))_defconfig
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KERNEL_SOURCE_CONFIG = $(KERNEL_ARCH_PATH)/configs/$(call qstrip,$(BR2_LINUX_KERNEL_DEFCONFIG))_defconfig
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else ifeq ($(BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG),y)
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cp $(BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE) $(KERNEL_ARCH_PATH)/configs/buildroot_defconfig
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KERNEL_SOURCE_CONFIG = $(BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE)
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endif
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define LINUX_CONFIGURE_CMDS
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cp $(KERNEL_SOURCE_CONFIG) $(KERNEL_ARCH_PATH)/configs/buildroot_defconfig
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$(TARGET_MAKE_ENV) $(MAKE1) $(LINUX_MAKE_FLAGS) -C $(@D) buildroot_defconfig
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rm $(KERNEL_ARCH_PATH)/configs/buildroot_defconfig
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endif
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ifeq ($(BR2_ARM_EABI),y)
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$(call KCONFIG_ENABLE_OPT,CONFIG_AEABI,$(@D)/.config)
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else
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$(call KCONFIG_DISABLE_OPT,CONFIG_AEABI,$(@D)/.config)
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endif
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ifeq ($(BR2_TARGET_ROOTFS_INITRAMFS),y)
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$(if $(BR2_ARM_EABI),
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$(call KCONFIG_ENABLE_OPT,CONFIG_AEABI,$(@D)/.config),
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$(call KCONFIG_DISABLE_OPT,CONFIG_AEABI,$(@D)/.config))
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# As the kernel gets compiled before root filesystems are
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# built, we create a fake initramfs file list. It'll be
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# replaced later by the real list, and the kernel will be
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# rebuilt using the linux26-rebuild-with-initramfs target.
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touch $(BINARIES_DIR)/rootfs.initramfs
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$(call KCONFIG_ENABLE_OPT,CONFIG_BLK_DEV_INITRD,$(@D)/.config)
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$(call KCONFIG_SET_OPT,CONFIG_INITRAMFS_SOURCE,\"$(BINARIES_DIR)/rootfs.initramfs\",$(@D)/.config)
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$(call KCONFIG_SET_OPT,CONFIG_INITRAMFS_ROOT_UID,0,$(@D)/.config)
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$(call KCONFIG_SET_OPT,CONFIG_INITRAMFS_ROOT_GID,0,$(@D)/.config)
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$(call KCONFIG_DISABLE_OPT,CONFIG_INITRAMFS_COMPRESSION_NONE,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_INITRAMFS_COMPRESSION_GZIP,$(@D)/.config)
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endif
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ifneq ($(BR2_ROOTFS_DEVICE_CREATION_STATIC),y)
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$(call KCONFIG_ENABLE_OPT,CONFIG_DEVTMPFS,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_DEVTMPFS_MOUNT,$(@D)/.config)
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endif
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ifeq ($(BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV),y)
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$(call KCONFIG_SET_OPT,CONFIG_UEVENT_HELPER_PATH,\"/sbin/mdev\",$(@D)/.config)
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endif
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$(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) oldconfig
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$(Q)touch $@
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$(if $(BR2_TARGET_ROOTFS_INITRAMFS),
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touch $(BINARIES_DIR)/rootfs.initramfs
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$(call KCONFIG_ENABLE_OPT,CONFIG_BLK_DEV_INITRD,$(@D)/.config)
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$(call KCONFIG_SET_OPT,CONFIG_INITRAMFS_SOURCE,\"$(BINARIES_DIR)/rootfs.initramfs\",$(@D)/.config)
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$(call KCONFIG_SET_OPT,CONFIG_INITRAMFS_ROOT_UID,0,$(@D)/.config)
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$(call KCONFIG_SET_OPT,CONFIG_INITRAMFS_ROOT_GID,0,$(@D)/.config)
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$(call KCONFIG_DISABLE_OPT,CONFIG_INITRAMFS_COMPRESSION_NONE,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_INITRAMFS_COMPRESSION_GZIP,$(@D)/.config))
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$(if $(BR2_ROOTFS_DEVICE_CREATION_STATIC),,
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$(call KCONFIG_ENABLE_OPT,CONFIG_DEVTMPFS,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_DEVTMPFS_MOUNT,$(@D)/.config))
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$(if $(BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV),
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$(call KCONFIG_SET_OPT,CONFIG_UEVENT_HELPER_PATH,\"/sbin/mdev\",$(@D)/.config))
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yes '' | $(TARGET_MAKE_ENV) $(MAKE1) $(LINUX_MAKE_FLAGS) -C $(@D) oldconfig
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endef
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# Compilation. We make sure the kernel gets rebuilt when the
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# configuration has changed.
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$(LINUX_DIR)/.stamp_compiled: $(LINUX_DIR)/.stamp_configured $(LINUX_DIR)/.config
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@$(call MESSAGE,"Compiling kernel")
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define LINUX_BUILD_CMDS
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$(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_IMAGE_NAME)
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@if grep -q "CONFIG_MODULES=y" $(@D)/.config; then \
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$(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) modules ; \
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fi
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$(Q)touch $@
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endef
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# Installation
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$(LINUX_DIR)/.stamp_installed: $(LINUX_DIR)/.stamp_compiled
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@$(call MESSAGE,"Installing kernel")
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ifeq ($(BR2_LINUX_KERNEL_INSTALL_TARGET),y)
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define LINUX_INSTALL_KERNEL_IMAGE_TO_TARGET
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install -m 0644 -D $(LINUX_IMAGE_PATH) $(TARGET_DIR)/boot/$(LINUX_IMAGE_NAME)
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endef
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endif
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define LINUX_INSTALL_IMAGES_CMDS
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cp $(LINUX_IMAGE_PATH) $(BINARIES_DIR)
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endef
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define LINUX_INSTALL_TARGET_CMDS
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$(LINUX_INSTALL_KERNEL_IMAGE_TO_TARGET)
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# Install modules and remove symbolic links pointing to build
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# directories, not relevant on the target
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@if grep -q "CONFIG_MODULES=y" $(@D)/.config; then \
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@ -169,17 +163,18 @@ endif
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rm -f $(TARGET_DIR)/lib/modules/$(LINUX_VERSION_PROBED)/build ; \
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rm -f $(TARGET_DIR)/lib/modules/$(LINUX_VERSION_PROBED)/source ; \
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fi
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$(Q)touch $@
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endef
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linux linux26: host-module-init-tools $(LINUX_DEPENDENCIES) $(LINUX_DIR)/.stamp_installed
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$(eval $(call GENTARGETS,,linux))
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linux-menuconfig linux-xconfig linux-gconfig linux-nconfig linux26-menuconfig linux26-xconfig linux26-gconfig linux26-nconfig: dirs $(LINUX_DIR)/.stamp_configured
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$(MAKE) $(LINUX_MAKE_FLAGS) -C $(LINUX_DIR) \
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$(subst linux-,,$(subst linux26-,,$@))
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rm -f $(LINUX_DIR)/.stamp_{built,target_installed,images_installed}
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# Support for rebuilding the kernel after the initramfs file list has
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# been generated in $(BINARIES_DIR)/rootfs.initramfs.
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$(LINUX_DIR)/.stamp_initramfs_rebuilt: $(LINUX_DIR)/.stamp_installed $(BINARIES_DIR)/rootfs.initramfs
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$(LINUX_DIR)/.stamp_initramfs_rebuilt: $(LINUX_DIR)/.stamp_target_installed $(LINUX_DIR)/.stamp_images_installed $(BINARIES_DIR)/rootfs.initramfs
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@$(call MESSAGE,"Rebuilding kernel with initramfs")
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# Remove the previously generated initramfs which was empty,
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# to make sure the kernel will actually regenerate it.
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@ -194,6 +189,7 @@ $(LINUX_DIR)/.stamp_initramfs_rebuilt: $(LINUX_DIR)/.stamp_installed $(BINARIES_
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# after it generated the initramfs list of files.
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linux-rebuild-with-initramfs linux26-rebuild-with-initramfs: $(LINUX_DIR)/.stamp_initramfs_rebuilt
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ifeq ($(BR2_LINUX_KERNEL),y)
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TARGETS+=linux
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endif
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