e3e0583f90
It is no longer meaningful, now that we have the option to use the kernel version for the linux headers, as it is more logical and more versatile. Add it to legacy. Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Peter Korsgaard <peter@korsgaard.com> Cc: Arnout Vandecappelle <arnout@mind.be> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
446 lines
17 KiB
Makefile
446 lines
17 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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LINUX_LICENSE = GPLv2
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LINUX_LICENSE_FILES = COPYING
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# Compute LINUX_SOURCE and LINUX_SITE from the configuration
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ifeq ($(BR2_LINUX_KERNEL_CUSTOM_TARBALL),y)
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LINUX_TARBALL = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION))
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LINUX_SITE = $(patsubst %/,%,$(dir $(LINUX_TARBALL)))
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LINUX_SOURCE = $(notdir $(LINUX_TARBALL))
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BR_NO_CHECK_HASH_FOR += $(LINUX_SOURCE)
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else ifeq ($(BR2_LINUX_KERNEL_CUSTOM_LOCAL),y)
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LINUX_SITE = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_LOCAL_PATH))
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LINUX_SITE_METHOD = local
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else ifeq ($(BR2_LINUX_KERNEL_CUSTOM_GIT),y)
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LINUX_SITE = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_REPO_URL))
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LINUX_SITE_METHOD = git
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else ifeq ($(BR2_LINUX_KERNEL_CUSTOM_HG),y)
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LINUX_SITE = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_REPO_URL))
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LINUX_SITE_METHOD = hg
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else
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LINUX_SOURCE = linux-$(LINUX_VERSION).tar.xz
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ifeq ($(BR2_LINUX_KERNEL_CUSTOM_VERSION),y)
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BR_NO_CHECK_HASH_FOR += $(LINUX_SOURCE)
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endif
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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 $(word) function. We support versions such as 4.0, 3.1,
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# 2.6.32, 2.6.32-rc1, 3.0-rc6, etc.
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ifeq ($(findstring x2.6.,x$(LINUX_VERSION)),x2.6.)
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LINUX_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v2.6
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else ifeq ($(findstring x3.,x$(LINUX_VERSION)),x3.)
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LINUX_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v3.x
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else ifeq ($(findstring x4.,x$(LINUX_VERSION)),x4.)
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LINUX_SITE = $(BR2_KERNEL_MIRROR)/linux/kernel/v4.x
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endif
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# release candidates are in testing/ subdir
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ifneq ($(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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# We rely on the generic package infrastructure to download and apply
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# remote patches (downloaded from ftp, http or https). For local
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# patches, we can't rely on that infrastructure, because there might
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# be directories in the patch list (unlike for other packages).
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LINUX_PATCH = $(filter ftp://% http://% https://%,$(LINUX_PATCHES))
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LINUX_INSTALL_IMAGES = YES
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LINUX_DEPENDENCIES += host-kmod
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# host tools needed for kernel compression
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ifeq ($(BR2_LINUX_KERNEL_LZ4),y)
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LINUX_DEPENDENCIES += host-lz4
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else ifeq ($(BR2_LINUX_KERNEL_LZMA),y)
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LINUX_DEPENDENCIES += host-lzma
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else ifeq ($(BR2_LINUX_KERNEL_LZO),y)
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LINUX_DEPENDENCIES += host-lzop
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else ifeq ($(BR2_LINUX_KERNEL_XZ),y)
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LINUX_DEPENDENCIES += host-xz
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endif
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LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_GZIP) = CONFIG_KERNEL_GZIP
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LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_LZ4) = CONFIG_KERNEL_LZ4
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LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_LZMA) = CONFIG_KERNEL_LZMA
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LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_LZO) = CONFIG_KERNEL_LZO
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LINUX_COMPRESSION_OPT_$(BR2_LINUX_KERNEL_XZ) = CONFIG_KERNEL_XZ
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ifeq ($(BR2_LINUX_KERNEL_UBOOT_IMAGE),y)
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LINUX_DEPENDENCIES += host-uboot-tools
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endif
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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="$(TARGET_CROSS)" \
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DEPMOD=$(HOST_DIR)/sbin/depmod
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LINUX_MAKE_ENV = \
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$(TARGET_MAKE_ENV) \
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BR_BINARIES_DIR=$(BINARIES_DIR)
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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 = `$(MAKE) $(LINUX_MAKE_FLAGS) -C $(LINUX_DIR) --no-print-directory -s kernelrelease 2>/dev/null`
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ifeq ($(BR2_LINUX_KERNEL_USE_INTREE_DTS),y)
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KERNEL_DTS_NAME = $(call qstrip,$(BR2_LINUX_KERNEL_INTREE_DTS_NAME))
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else ifeq ($(BR2_LINUX_KERNEL_USE_CUSTOM_DTS),y)
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# We keep only the .dts files, so that the user can specify both .dts
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# and .dtsi files in BR2_LINUX_KERNEL_CUSTOM_DTS_PATH. Both will be
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# copied to arch/<arch>/boot/dts, but only the .dts files will
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# actually be generated as .dtb.
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KERNEL_DTS_NAME = $(basename $(filter %.dts,$(notdir $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_DTS_PATH)))))
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endif
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KERNEL_DTBS = $(addsuffix .dtb,$(KERNEL_DTS_NAME))
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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_NAME))
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LINUX_TARGET_NAME = $(call qstrip,$(BR2_LINUX_KERNEL_IMAGE_TARGET_NAME))
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ifeq ($(LINUX_IMAGE_NAME),)
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LINUX_IMAGE_NAME = $(LINUX_TARGET_NAME)
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endif
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else
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ifeq ($(BR2_LINUX_KERNEL_UIMAGE),y)
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LINUX_IMAGE_NAME = uImage
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else ifeq ($(BR2_LINUX_KERNEL_APPENDED_UIMAGE),y)
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LINUX_IMAGE_NAME = uImage
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else ifeq ($(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_ZIMAGE_EPAPR),y)
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LINUX_IMAGE_NAME = zImage.epapr
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else ifeq ($(BR2_LINUX_KERNEL_APPENDED_ZIMAGE),y)
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LINUX_IMAGE_NAME = zImage
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else ifeq ($(BR2_LINUX_KERNEL_CUIMAGE),y)
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LINUX_IMAGE_NAME = cuImage.$(KERNEL_DTS_NAME)
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else ifeq ($(BR2_LINUX_KERNEL_SIMPLEIMAGE),y)
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LINUX_IMAGE_NAME = simpleImage.$(KERNEL_DTS_NAME)
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else ifeq ($(BR2_LINUX_KERNEL_IMAGE),y)
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LINUX_IMAGE_NAME = Image
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else ifeq ($(BR2_LINUX_KERNEL_LINUX_BIN),y)
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LINUX_IMAGE_NAME = linux.bin
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else ifeq ($(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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else ifeq ($(BR2_LINUX_KERNEL_VMLINUZ_BIN),y)
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LINUX_IMAGE_NAME = vmlinuz.bin
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endif
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# The if-else blocks above are all the image types we know of, and all
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# come from a Kconfig choice, so we know we have LINUX_IMAGE_NAME set
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# to something
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LINUX_TARGET_NAME = $(LINUX_IMAGE_NAME)
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endif
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LINUX_KERNEL_UIMAGE_LOADADDR = $(call qstrip,$(BR2_LINUX_KERNEL_UIMAGE_LOADADDR))
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ifneq ($(LINUX_KERNEL_UIMAGE_LOADADDR),)
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LINUX_MAKE_FLAGS += LOADADDR="$(LINUX_KERNEL_UIMAGE_LOADADDR)"
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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 ifeq ($(BR2_LINUX_KERNEL_VMLINUZ_BIN),y)
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LINUX_IMAGE_PATH = $(LINUX_DIR)/$(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 # BR2_LINUX_KERNEL_VMLINUX
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define LINUX_APPLY_LOCAL_PATCHES
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for p in $(filter-out ftp://% http://% https://%,$(LINUX_PATCHES)) ; do \
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if test -d $$p ; then \
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$(APPLY_PATCHES) $(@D) $$p \*.patch || exit 1 ; \
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else \
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$(APPLY_PATCHES) $(@D) `dirname $$p` `basename $$p` || exit 1; \
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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_LOCAL_PATCHES
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ifeq ($(BR2_LINUX_KERNEL_USE_DEFCONFIG),y)
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LINUX_KCONFIG_DEFCONFIG = $(call qstrip,$(BR2_LINUX_KERNEL_DEFCONFIG))_defconfig
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else ifeq ($(BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG),y)
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LINUX_KCONFIG_FILE = $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE))
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endif
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LINUX_KCONFIG_FRAGMENT_FILES = $(call qstrip,$(BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES))
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LINUX_KCONFIG_EDITORS = menuconfig xconfig gconfig nconfig
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LINUX_KCONFIG_OPTS = $(LINUX_MAKE_FLAGS)
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# If no package has yet set it, set it from the Kconfig option
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LINUX_NEEDS_MODULES ?= $(BR2_LINUX_NEEDS_MODULES)
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define LINUX_KCONFIG_FIXUP_CMDS
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$(if $(LINUX_NEEDS_MODULES),
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$(call KCONFIG_ENABLE_OPT,CONFIG_MODULES,$(@D)/.config))
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$(call KCONFIG_ENABLE_OPT,$(LINUX_COMPRESSION_OPT_y),$(@D)/.config)
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$(foreach opt, $(LINUX_COMPRESSION_OPT_),
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$(call KCONFIG_DISABLE_OPT,$(opt),$(@D)/.config)
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)
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$(if $(BR2_arm)$(BR2_armeb),
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$(call KCONFIG_ENABLE_OPT,CONFIG_AEABI,$(@D)/.config))
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$(if $(BR2_TARGET_ROOTFS_CPIO),
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$(call KCONFIG_ENABLE_OPT,CONFIG_BLK_DEV_INITRD,$(@D)/.config))
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# As the kernel gets compiled before root filesystems are
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# built, we create a fake cpio file. It'll be
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# replaced later by the real cpio archive, and the kernel will be
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# rebuilt using the linux-rebuild-with-initramfs target.
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$(if $(BR2_TARGET_ROOTFS_INITRAMFS),
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touch $(BINARIES_DIR)/rootfs.cpio
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$(call KCONFIG_SET_OPT,CONFIG_INITRAMFS_SOURCE,"$${BR_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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$(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_EUDEV),
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$(call KCONFIG_ENABLE_OPT,CONFIG_INOTIFY_USER,$(@D)/.config))
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$(if $(BR2_PACKAGE_KTAP),
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$(call KCONFIG_ENABLE_OPT,CONFIG_DEBUG_FS,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_ENABLE_DEFAULT_TRACERS,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_PERF_EVENTS,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_FUNCTION_TRACER,$(@D)/.config))
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$(if $(BR2_PACKAGE_SYSTEMD),
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$(call KCONFIG_ENABLE_OPT,CONFIG_CGROUPS,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_INOTIFY_USER,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_FHANDLE,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_AUTOFS4_FS,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_TMPFS_POSIX_ACL,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_TMPFS_POSIX_XATTR,$(@D)/.config))
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$(if $(BR2_PACKAGE_SMACK),
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$(call KCONFIG_ENABLE_OPT,CONFIG_SECURITY,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_SECURITY_SMACK,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_SECURITY_NETWORK,$(@D)/.config))
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$(if $(BR2_PACKAGE_IPTABLES),
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$(call KCONFIG_ENABLE_OPT,CONFIG_IP_NF_IPTABLES,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_IP_NF_FILTER,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_NETFILTER,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_NETFILTER_XTABLES,$(@D)/.config))
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$(if $(BR2_PACKAGE_XTABLES_ADDONS),
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$(call KCONFIG_ENABLE_OPT,CONFIG_NETFILTER_ADVANCED,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_NF_CONNTRACK,$(@D)/.config)
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$(call KCONFIG_ENABLE_OPT,CONFIG_NF_CONNTRACK_MARK,$(@D)/.config))
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$(if $(BR2_LINUX_KERNEL_APPENDED_DTB),
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$(call KCONFIG_ENABLE_OPT,CONFIG_ARM_APPENDED_DTB,$(@D)/.config))
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$(if $(BR2_PACKAGE_KERNEL_MODULE_IMX_GPU_VIV),
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$(call KCONFIG_DISABLE_OPT,CONFIG_MXC_GPU_VIV,$(@D)/.config))
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endef
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ifeq ($(BR2_LINUX_KERNEL_DTS_SUPPORT),y)
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ifeq ($(BR2_LINUX_KERNEL_DTB_IS_SELF_BUILT),)
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define LINUX_BUILD_DTB
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$(LINUX_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(KERNEL_DTBS)
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endef
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ifeq ($(BR2_LINUX_KERNEL_APPENDED_DTB),)
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define LINUX_INSTALL_DTB
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# dtbs moved from arch/<ARCH>/boot to arch/<ARCH>/boot/dts since 3.8-rc1
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cp $(addprefix \
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$(KERNEL_ARCH_PATH)/boot/$(if $(wildcard \
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$(addprefix $(KERNEL_ARCH_PATH)/boot/dts/,$(KERNEL_DTBS))),dts/),$(KERNEL_DTBS)) \
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$(1)
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endef
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endif # BR2_LINUX_KERNEL_APPENDED_DTB
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endif # BR2_LINUX_KERNEL_DTB_IS_SELF_BUILT
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endif # BR2_LINUX_KERNEL_DTS_SUPPORT
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ifeq ($(BR2_LINUX_KERNEL_APPENDED_DTB),y)
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# dtbs moved from arch/$ARCH/boot to arch/$ARCH/boot/dts since 3.8-rc1
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define LINUX_APPEND_DTB
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(cd $(KERNEL_ARCH_PATH)/boot; \
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for dtb in $(KERNEL_DTS_NAME); do \
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if test -e $${dtb}.dtb ; then \
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dtbpath=$${dtb}.dtb ; \
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else \
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dtbpath=dts/$${dtb}.dtb ; \
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fi ; \
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cat zImage $${dtbpath} > zImage.$${dtb} || exit 1; \
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done)
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endef
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ifeq ($(BR2_LINUX_KERNEL_APPENDED_UIMAGE),y)
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# We need to generate a new u-boot image that takes into
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# account the extra-size added by the device tree at the end
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# of the image. To do so, we first need to retrieve both load
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# address and entry point for the kernel from the already
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# generate uboot image before using mkimage -l.
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LINUX_APPEND_DTB += ; \
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MKIMAGE_ARGS=`$(MKIMAGE) -l $(LINUX_IMAGE_PATH) |\
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sed -n -e 's/Image Name:[ ]*\(.*\)/-n \1/p' -e 's/Load Address:/-a/p' -e 's/Entry Point:/-e/p'`; \
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for dtb in $(KERNEL_DTS_NAME); do \
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$(MKIMAGE) -A $(MKIMAGE_ARCH) -O linux \
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-T kernel -C none $${MKIMAGE_ARGS} \
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-d $(KERNEL_ARCH_PATH)/boot/zImage.$${dtb} $(LINUX_IMAGE_PATH).$${dtb}; \
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done
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endif
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endif
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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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$(if $(BR2_LINUX_KERNEL_USE_CUSTOM_DTS),
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cp -f $(call qstrip,$(BR2_LINUX_KERNEL_CUSTOM_DTS_PATH)) $(KERNEL_ARCH_PATH)/boot/dts/)
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$(LINUX_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_TARGET_NAME)
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@if grep -q "CONFIG_MODULES=y" $(@D)/.config; then \
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$(LINUX_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) modules ; \
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fi
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$(LINUX_BUILD_DTB)
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$(LINUX_APPEND_DTB)
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endef
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ifeq ($(BR2_LINUX_KERNEL_APPENDED_DTB),y)
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# When a DTB was appended, install the potential several images with
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# appended DTBs.
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define LINUX_INSTALL_IMAGE
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mkdir -p $(1)
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cp $(KERNEL_ARCH_PATH)/boot/$(LINUX_IMAGE_NAME).* $(1)
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endef
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else
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# Otherwise, just install the unique image generated by the kernel
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# build process.
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define LINUX_INSTALL_IMAGE
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$(INSTALL) -m 0644 -D $(LINUX_IMAGE_PATH) $(1)/$(LINUX_IMAGE_NAME)
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endef
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endif
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ifeq ($(BR2_LINUX_KERNEL_INSTALL_TARGET),y)
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define LINUX_INSTALL_KERNEL_IMAGE_TO_TARGET
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$(call LINUX_INSTALL_IMAGE,$(TARGET_DIR)/boot)
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$(call LINUX_INSTALL_DTB,$(TARGET_DIR)/boot)
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endef
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endif
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define LINUX_INSTALL_HOST_TOOLS
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# Installing dtc (device tree compiler) as host tool, if selected
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if grep -q "CONFIG_DTC=y" $(@D)/.config; then \
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$(INSTALL) -D -m 0755 $(@D)/scripts/dtc/dtc $(HOST_DIR)/usr/bin/linux-dtc ; \
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fi
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endef
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define LINUX_INSTALL_IMAGES_CMDS
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$(call LINUX_INSTALL_IMAGE,$(BINARIES_DIR))
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$(call LINUX_INSTALL_DTB,$(BINARIES_DIR))
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endef
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define LINUX_INSTALL_TARGET_CMDS
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$(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" $(@D)/.config; then \
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$(LINUX_MAKE_ENV) $(MAKE1) $(LINUX_MAKE_FLAGS) -C $(@D) 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 ; \
|
|
fi
|
|
$(LINUX_INSTALL_HOST_TOOLS)
|
|
endef
|
|
|
|
# Include all our extensions and tools definitions.
|
|
#
|
|
# Note: our package infrastructure uses the full-path of the last-scanned
|
|
# Makefile to determine what package we're currently defining, using the
|
|
# last directory component in the path. As such, including other Makefile,
|
|
# like below, before we call one of the *-package macro is usally not
|
|
# working.
|
|
# However, since the files we include here are in the same directory as
|
|
# the current Makefile, we are OK. But this is a hard requirement: files
|
|
# included here *must* be in the same directory!
|
|
include $(sort $(wildcard linux/linux-ext-*.mk))
|
|
include $(sort $(wildcard linux/linux-tool-*.mk))
|
|
|
|
LINUX_PATCH_DEPENDENCIES += $(foreach ext,$(LINUX_EXTENSIONS),\
|
|
$(if $(BR2_LINUX_KERNEL_EXT_$(call UPPERCASE,$(ext))),$(ext)))
|
|
|
|
LINUX_PRE_PATCH_HOOKS += $(foreach ext,$(LINUX_EXTENSIONS),\
|
|
$(if $(BR2_LINUX_KERNEL_EXT_$(call UPPERCASE,$(ext))),\
|
|
$(call UPPERCASE,$(ext))_PREPARE_KERNEL))
|
|
|
|
# Install Linux kernel tools in the staging directory since some tools
|
|
# may install shared libraries and headers (e.g. cpupower). The kernel
|
|
# image is NOT installed in the staging directory.
|
|
LINUX_INSTALL_STAGING = YES
|
|
|
|
LINUX_DEPENDENCIES += $(foreach tool,$(LINUX_TOOLS),\
|
|
$(if $(BR2_LINUX_KERNEL_TOOL_$(call UPPERCASE,$(tool))),\
|
|
$($(call UPPERCASE,$(tool))_DEPENDENCIES)))
|
|
|
|
LINUX_POST_BUILD_HOOKS += $(foreach tool,$(LINUX_TOOLS),\
|
|
$(if $(BR2_LINUX_KERNEL_TOOL_$(call UPPERCASE,$(tool))),\
|
|
$(call UPPERCASE,$(tool))_BUILD_CMDS))
|
|
|
|
LINUX_POST_INSTALL_STAGING_HOOKS += $(foreach tool,$(LINUX_TOOLS),\
|
|
$(if $(BR2_LINUX_KERNEL_TOOL_$(call UPPERCASE,$(tool))),\
|
|
$(call UPPERCASE,$(tool))_INSTALL_STAGING_CMDS))
|
|
|
|
LINUX_POST_INSTALL_TARGET_HOOKS += $(foreach tool,$(LINUX_TOOLS),\
|
|
$(if $(BR2_LINUX_KERNEL_TOOL_$(call UPPERCASE,$(tool))),\
|
|
$(call UPPERCASE,$(tool))_INSTALL_TARGET_CMDS))
|
|
|
|
# Checks to give errors that the user can understand
|
|
ifeq ($(BR_BUILDING),y)
|
|
|
|
ifeq ($(BR2_LINUX_KERNEL_USE_DEFCONFIG),y)
|
|
# We must use the user-supplied kconfig value, because
|
|
# LINUX_KCONFIG_DEFCONFIG will at least contain the
|
|
# trailing _defconfig
|
|
ifeq ($(call qstrip,$(BR2_LINUX_KERNEL_DEFCONFIG)),)
|
|
$(error No kernel defconfig name specified, check your BR2_LINUX_KERNEL_DEFCONFIG setting)
|
|
endif
|
|
endif
|
|
|
|
ifeq ($(BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG),y)
|
|
ifeq ($(LINUX_KCONFIG_FILE),)
|
|
$(error No kernel configuration file specified, check your BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE setting)
|
|
endif
|
|
endif
|
|
|
|
ifeq ($(BR2_LINUX_KERNEL_DTS_SUPPORT)$(KERNEL_DTS_NAME),y)
|
|
$(error No kernel device tree source specified, check your \
|
|
BR2_LINUX_KERNEL_USE_INTREE_DTS / BR2_LINUX_KERNEL_USE_CUSTOM_DTS settings)
|
|
endif
|
|
|
|
endif # BR_BUILDING
|
|
|
|
$(eval $(kconfig-package))
|
|
|
|
# Support for rebuilding the kernel after the cpio archive has
|
|
# been generated in $(BINARIES_DIR)/rootfs.cpio.
|
|
$(LINUX_DIR)/.stamp_initramfs_rebuilt: $(LINUX_DIR)/.stamp_target_installed $(LINUX_DIR)/.stamp_images_installed $(BINARIES_DIR)/rootfs.cpio
|
|
@$(call MESSAGE,"Rebuilding kernel with initramfs")
|
|
# Build the kernel.
|
|
$(LINUX_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_TARGET_NAME)
|
|
$(LINUX_APPEND_DTB)
|
|
# Copy the kernel image to its final destination
|
|
cp $(LINUX_IMAGE_PATH) $(BINARIES_DIR)
|
|
# If there is a .ub file copy it to the final destination
|
|
test ! -f $(LINUX_IMAGE_PATH).ub || cp $(LINUX_IMAGE_PATH).ub $(BINARIES_DIR)
|
|
$(Q)touch $@
|
|
|
|
# The initramfs building code must make sure this target gets called
|
|
# after it generated the initramfs list of files.
|
|
linux-rebuild-with-initramfs: $(LINUX_DIR)/.stamp_initramfs_rebuilt
|