aaed42d156
This patch adds the options needed to build the SimpleImage containing the device tree structure needed for the Microblaze architecture. Handling Device Tree and SimpleImage will be handled in a general way in the future. I provide this patch to be able to build the system in the meantime. Signed-off-by: Stephan Hoffmann <sho@relinux.de> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
255 lines
9.4 KiB
Makefile
255 lines
9.4 KiB
Makefile
###############################################################################
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#
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# Linux kernel target
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#
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###############################################################################
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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 $(LINUX_TARBALL))
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else ifeq ($(BR2_LINUX_KERNEL_CUSTOM_GIT),y)
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LINUX_SITE = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_GIT_REPO_URL))
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LINUX_SITE_METHOD = git
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else
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LINUX_SOURCE = linux-$(LINUX_VERSION).tar.bz2
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# In X.Y.Z, get X and Y. We replace dots and dashes by spaces in order
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# to use the $(word) function. We support versions such as 3.1,
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# 2.6.32, 2.6.32-rc1, 3.0-rc6, etc.
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ifeq ($(findstring x2.6.,x$(LINUX_VERSION)),x2.6.)
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LINUX_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v2.6/
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else
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LINUX_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v3.x/
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endif
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# release candidates are in testing/ subdir
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ifneq ($(findstring -rc,$(LINUX_VERSION)),)
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LINUX_SITE := $(LINUX_SITE)testing/
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endif # -rc
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endif
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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="$(HOSTCC)" \
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HOSTCFLAGS="$(HOSTCFLAGS)" \
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ARCH=$(KERNEL_ARCH) \
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INSTALL_MOD_PATH=$(TARGET_DIR) \
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CROSS_COMPILE="$(CCACHE) $(TARGET_CROSS)" \
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DEPMOD=$(HOST_DIR)/usr/sbin/depmod
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# Get the real Linux version, which tells us where kernel modules are
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# going to be installed in the target filesystem.
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LINUX_VERSION_PROBED = $(shell $(MAKE) $(LINUX_MAKE_FLAGS) -C $(LINUX_DIR) --no-print-directory -s kernelrelease)
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ifeq ($(BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM),y)
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LINUX_IMAGE_NAME=$(call qstrip,$(BR2_LINUX_KERNEL_IMAGE_TARGET_NAME))
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else
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ifeq ($(BR2_LINUX_KERNEL_UIMAGE),y)
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ifeq ($(KERNEL_ARCH),blackfin)
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# a uImage, but with a different file name
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LINUX_IMAGE_NAME=vmImage
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else
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LINUX_IMAGE_NAME=uImage
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endif
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LINUX_DEPENDENCIES+=host-uboot-tools
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else ifeq ($(BR2_LINUX_KERNEL_BZIMAGE),y)
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LINUX_IMAGE_NAME=bzImage
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else ifeq ($(BR2_LINUX_KERNEL_ZIMAGE),y)
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LINUX_IMAGE_NAME=zImage
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else ifeq ($(BR2_LINUX_KERNEL_VMLINUX_BIN),y)
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LINUX_IMAGE_NAME=vmlinux.bin
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else ifeq ($(BR2_LINUX_KERNEL_VMLINUX),y)
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LINUX_IMAGE_NAME=vmlinux
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else ifeq ($(BR2_LINUX_KERNEL_VMLINUZ),y)
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LINUX_IMAGE_NAME=vmlinuz
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endif
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endif
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# Compute the arch path, since i386 and x86_64 are in arch/x86 and not
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# in arch/$(KERNEL_ARCH). Even if the kernel creates symbolic links
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# for bzImage, arch/i386 and arch/x86_64 do not exist when copying the
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# defconfig file.
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ifeq ($(KERNEL_ARCH),i386)
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KERNEL_ARCH_PATH=$(LINUX_DIR)/arch/x86
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else ifeq ($(KERNEL_ARCH),x86_64)
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KERNEL_ARCH_PATH=$(LINUX_DIR)/arch/x86
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else
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KERNEL_ARCH_PATH=$(LINUX_DIR)/arch/$(KERNEL_ARCH)
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endif
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ifeq ($(BR2_LINUX_KERNEL_VMLINUX),y)
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LINUX_IMAGE_PATH=$(LINUX_DIR)/$(LINUX_IMAGE_NAME)
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else ifeq ($(BR2_LINUX_KERNEL_VMLINUZ),y)
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LINUX_IMAGE_PATH=$(LINUX_DIR)/$(LINUX_IMAGE_NAME)
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else
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ifeq ($(KERNEL_ARCH),avr32)
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LINUX_IMAGE_PATH=$(KERNEL_ARCH_PATH)/boot/images/$(LINUX_IMAGE_NAME)
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else
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LINUX_IMAGE_PATH=$(KERNEL_ARCH_PATH)/boot/$(LINUX_IMAGE_NAME)
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endif
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endif # BR2_LINUX_KERNEL_VMLINUX
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define LINUX_DOWNLOAD_PATCHES
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$(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,$(patch))$(sep))
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endef
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LINUX_POST_DOWNLOAD_HOOKS += LINUX_DOWNLOAD_PATCHES
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define LINUX_APPLY_PATCHES
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for p in $(LINUX_PATCHES) ; do \
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if echo $$p | grep -q -E "^ftp://|^http://" ; then \
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support/scripts/apply-patches.sh $(@D) $(DL_DIR) `basename $$p` ; \
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elif test -d $$p ; then \
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support/scripts/apply-patches.sh $(@D) $$p linux-\*.patch ; \
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else \
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support/scripts/apply-patches.sh $(@D) `dirname $$p` `basename $$p` ; \
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fi \
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done
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endef
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LINUX_POST_PATCH_HOOKS += LINUX_APPLY_PATCHES
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ifeq ($(KERNEL_ARCH),microblaze)
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# on microblaze, we always want mkimage
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LINUX_DEPENDENCIES+=host-uboot-tools
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define LINUX_COPY_DTS
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if test -f "$(BR2_LINUX_KERNEL_DTS_FILE)" ; then \
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cp $(BR2_LINUX_KERNEL_DTS_FILE) $(@D)/arch/microblaze/boot/dts ; \
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else \
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echo "Cannot copy dts file!" ; \
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fi
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endef
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endif
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ifeq ($(BR2_LINUX_KERNEL_USE_DEFCONFIG),y)
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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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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 $(KERNEL_ARCH_PATH)/configs/buildroot_defconfig
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$(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,$(@D)/.config))
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$(if $(BR2_microblaze),
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$(call LINUX_COPY_DTS))
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# As the kernel gets compiled before root filesystems are
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# built, we create a fake cpio file. It'll be
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# replaced later by the real cpio archive, and the kernel will be
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# rebuilt using the linux26-rebuild-with-initramfs target.
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$(if $(BR2_TARGET_ROOTFS_INITRAMFS),
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touch $(BINARIES_DIR)/rootfs.cpio
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$(call KCONFIG_ENABLE_OPT,CONFIG_BLK_DEV_INITRD,$(@D)/.config)
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$(call KCONFIG_SET_OPT,CONFIG_INITRAMFS_SOURCE,\"$(BINARIES_DIR)/rootfs.cpio\",$(@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 $(@D) oldconfig
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endef
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# Compilation. We make sure the kernel gets rebuilt when the
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# configuration has changed.
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define LINUX_BUILD_CMDS
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$(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 $(@D) modules ; \
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fi
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endef
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ifeq ($(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" $(@D)/.config; then \
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$(TARGET_MAKE_ENV) $(MAKE1) $(LINUX_MAKE_FLAGS) -C $(@D) \
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DEPMOD="$(HOST_DIR)/usr/sbin/depmod" modules_install ; \
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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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endef
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include linux/linux-ext-*.mk
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$(eval $(call GENTARGETS))
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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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linux-savedefconfig linux26-savedefconfig: 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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ifeq ($(BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG),y)
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linux-update-config linux26-update-config: $(LINUX_DIR)/.config
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cp -f $(LINUX_DIR)/.config $(BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE)
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linux-update-defconfig linux26-update-defconfig: linux-savedefconfig
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cp -f $(LINUX_DIR)/defconfig $(BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE)
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else
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linux-update-config linux26-update-config: ;
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linux-update-defconfig linux26-update-defconfig: ;
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endif
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# Support for rebuilding the kernel after the cpio archive has
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# been generated in $(BINARIES_DIR)/rootfs.cpio.
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$(LINUX_DIR)/.stamp_initramfs_rebuilt: $(LINUX_DIR)/.stamp_target_installed $(LINUX_DIR)/.stamp_images_installed $(BINARIES_DIR)/rootfs.cpio
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@$(call MESSAGE,"Rebuilding kernel with initramfs")
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# Build the kernel.
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$(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_IMAGE_NAME)
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# Copy the kernel image to its final destination
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cp $(LINUX_IMAGE_PATH) $(BINARIES_DIR)
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# If there is a .ub file copy it to the final destination
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test -f $(LINUX_IMAGE_PATH).ub && cp $(LINUX_IMAGE_PATH).ub $(BINARIES_DIR)
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$(Q)touch $@
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# The initramfs building code must make sure this target gets called
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# after it generated the initramfs list of files.
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linux-rebuild-with-initramfs linux26-rebuild-with-initramfs: $(LINUX_DIR)/.stamp_initramfs_rebuilt
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# Checks to give errors that the user can understand
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ifeq ($(filter source,$(MAKECMDGOALS)),)
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ifeq ($(BR2_LINUX_KERNEL_USE_DEFCONFIG),y)
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ifeq ($(call qstrip,$(BR2_LINUX_KERNEL_DEFCONFIG)),)
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$(error No kernel defconfig name specified, check your BR2_LINUX_KERNEL_DEFCONFIG setting)
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endif
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endif
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ifeq ($(BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG),y)
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ifeq ($(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE)),)
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$(error No kernel configuration file specified, check your BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE setting)
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endif
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endif
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endif
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