boot/grub2/grub2.mk - buildroot - Git at Google

 ################################################################################
 #
 # grub2
 #
 ################################################################################

 GRUB2_VERSION = 2.12
 GRUB2_SITE = http://ftp.gnu.org/gnu/grub
 GRUB2_SOURCE = grub-$(GRUB2_VERSION).tar.xz
 GRUB2_LICENSE = GPL-3.0+
 GRUB2_LICENSE_FILES = COPYING
 GRUB2_DEPENDENCIES = host-bison host-flex host-gawk host-grub2
 HOST_GRUB2_DEPENDENCIES = host-bison host-flex host-gawk
 GRUB2_INSTALL_IMAGES = YES

 # CVE-2019-14865 is about a flaw in the grub2-set-bootflag tool, which
 # doesn't exist upstream, but is added by the Redhat/Fedora
 # packaging. Not applicable to Buildroot.
 GRUB2_IGNORE_CVES += CVE-2019-14865
 # CVE-2020-15705 is related to a flaw in the use of the
 # grub_linuxefi_secure_validate(), which was added by Debian/Ubuntu
 # patches. The issue doesn't affect upstream Grub, and
 # grub_linuxefi_secure_validate() is not implemented in the grub2
 # version available in Buildroot.
 GRUB2_IGNORE_CVES += CVE-2020-15705
 # vulnerability is specific to the SUSE distribution
 GRUB2_IGNORE_CVES += CVE-2021-46705
 # vulnerability is specific to the Redhat distribution, affects a
 # downstream change from Redhat related to password authentication
 GRUB2_IGNORE_CVES += CVE-2023-4001
 # vulnerability is specific to the Redhat distribution, affects the
 # grub2-set-bootflag tool, which doesn't exist upstream
 GRUB2_IGNORE_CVES += CVE-2024-1048

 ifeq ($(BR2_TARGET_GRUB2_INSTALL_TOOLS),y)
 GRUB2_INSTALL_TARGET = YES
 else
 GRUB2_INSTALL_TARGET = NO
 endif
 GRUB2_CPE_ID_VENDOR = gnu

 GRUB2_BUILTIN_MODULES_PC = $(call qstrip,$(BR2_TARGET_GRUB2_BUILTIN_MODULES_PC))
 GRUB2_BUILTIN_MODULES_EFI = $(call qstrip,$(BR2_TARGET_GRUB2_BUILTIN_MODULES_EFI))
 GRUB2_BUILTIN_CONFIG_PC = $(call qstrip,$(BR2_TARGET_GRUB2_BUILTIN_CONFIG_PC))
 GRUB2_BUILTIN_CONFIG_EFI = $(call qstrip,$(BR2_TARGET_GRUB2_BUILTIN_CONFIG_EFI))
 GRUB2_BOOT_PARTITION = $(call qstrip,$(BR2_TARGET_GRUB2_BOOT_PARTITION))

 GRUB2_IMAGE_i386-pc = $(BINARIES_DIR)/grub.img
 GRUB2_CFG_i386-pc = $(TARGET_DIR)/boot/grub/grub.cfg
 GRUB2_PREFIX_i386-pc = ($(GRUB2_BOOT_PARTITION))/boot/grub
 GRUB2_TARGET_i386-pc = i386
 GRUB2_PLATFORM_i386-pc = pc
 GRUB2_BUILTIN_CONFIG_i386-pc = $(GRUB2_BUILTIN_CONFIG_PC)
 GRUB2_BUILTIN_MODULES_i386-pc = $(GRUB2_BUILTIN_MODULES_PC)
 GRUB2_TUPLES-$(BR2_TARGET_GRUB2_I386_PC) += i386-pc

 GRUB2_IMAGE_i386-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/bootia32.efi
 GRUB2_CFG_i386-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/grub.cfg
 GRUB2_PREFIX_i386-efi = /EFI/BOOT
 GRUB2_TARGET_i386-efi = i386
 GRUB2_PLATFORM_i386-efi = efi
 GRUB2_BUILTIN_CONFIG_i386-efi = $(GRUB2_BUILTIN_CONFIG_EFI)
 GRUB2_BUILTIN_MODULES_i386-efi = $(GRUB2_BUILTIN_MODULES_EFI)
 GRUB2_TUPLES-$(BR2_TARGET_GRUB2_I386_EFI) += i386-efi

 GRUB2_IMAGE_x86_64-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/bootx64.efi
 GRUB2_CFG_x86_64-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/grub.cfg
 GRUB2_PREFIX_x86_64-efi = /EFI/BOOT
 GRUB2_TARGET_x86_64-efi = x86_64
 GRUB2_PLATFORM_x86_64-efi = efi
 GRUB2_BUILTIN_CONFIG_x86_64-efi = $(GRUB2_BUILTIN_CONFIG_EFI)
 GRUB2_BUILTIN_MODULES_x86_64-efi = $(GRUB2_BUILTIN_MODULES_EFI)
 GRUB2_TUPLES-$(BR2_TARGET_GRUB2_X86_64_EFI) += x86_64-efi

 GRUB2_IMAGE_arm-uboot = $(BINARIES_DIR)/boot-part/grub/grub.img
 GRUB2_CFG_arm-uboot = $(BINARIES_DIR)/boot-part/grub/grub.cfg
 GRUB2_PREFIX_arm-uboot = ($(GRUB2_BOOT_PARTITION))/boot/grub
 GRUB2_TARGET_arm-uboot = arm
 GRUB2_PLATFORM_arm-uboot = uboot
 GRUB2_BUILTIN_CONFIG_arm-uboot = $(GRUB2_BUILTIN_CONFIG_PC)
 GRUB2_BUILTIN_MODULES_arm-uboot = $(GRUB2_BUILTIN_MODULES_PC)
 GRUB2_TUPLES-$(BR2_TARGET_GRUB2_ARM_UBOOT) += arm-uboot

 GRUB2_IMAGE_arm-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/bootarm.efi
 GRUB2_CFG_arm-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/grub.cfg
 GRUB2_PREFIX_arm-efi = /EFI/BOOT
 GRUB2_TARGET_arm-efi = arm
 GRUB2_PLATFORM_arm-efi = efi
 GRUB2_BUILTIN_CONFIG_arm-efi = $(GRUB2_BUILTIN_CONFIG_EFI)
 GRUB2_BUILTIN_MODULES_arm-efi = $(GRUB2_BUILTIN_MODULES_EFI)
 GRUB2_TUPLES-$(BR2_TARGET_GRUB2_ARM_EFI) += arm-efi

 GRUB2_IMAGE_arm64-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/bootaa64.efi
 GRUB2_CFG_arm64-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/grub.cfg
 GRUB2_PREFIX_arm64-efi = /EFI/BOOT
 GRUB2_TARGET_arm64-efi = aarch64
 GRUB2_PLATFORM_arm64-efi = efi
 GRUB2_BUILTIN_CONFIG_arm64-efi = $(GRUB2_BUILTIN_CONFIG_EFI)
 GRUB2_BUILTIN_MODULES_arm64-efi = $(GRUB2_BUILTIN_MODULES_EFI)
 GRUB2_TUPLES-$(BR2_TARGET_GRUB2_ARM64_EFI) += arm64-efi

 GRUB2_IMAGE_riscv64-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/bootriscv64.efi
 GRUB2_CFG_riscv64-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/grub.cfg
 GRUB2_PREFIX_riscv64-efi = /EFI/BOOT
 GRUB2_TARGET_riscv64-efi = riscv64
 GRUB2_PLATFORM_riscv64-efi = efi
 GRUB2_BUILTIN_CONFIG_riscv64-efi = $(GRUB2_BUILTIN_CONFIG_EFI)
 GRUB2_BUILTIN_MODULES_riscv64-efi = $(GRUB2_BUILTIN_MODULES_EFI)
 GRUB2_TUPLES-$(BR2_TARGET_GRUB2_RISCV64_EFI) += riscv64-efi

 # Grub2 is kind of special: it considers CC, LD and so on to be the
 # tools to build the host programs and uses TARGET_CC, TARGET_CFLAGS,
 # TARGET_CPPFLAGS, TARGET_LDFLAGS to build the bootloader itself.
 #
 # NOTE: TARGET_STRIP is overridden by !BR2_STRIP_strip, so always
 # use the cross compile variant to ensure grub2 builds

 HOST_GRUB2_CONF_ENV = \
 	CPP="$(HOSTCC) -E"

 GRUB2_CONF_ENV = \
 	CPP="$(TARGET_CC) -E" \
 	TARGET_CC="$(TARGET_CC)" \
 	CFLAGS="$(TARGET_CFLAGS) -Os" \
 	TARGET_CFLAGS="$(TARGET_CFLAGS) -Os" \
 	CPPFLAGS="$(TARGET_CPPFLAGS) -Os -fno-stack-protector" \
 	TARGET_CPPFLAGS="$(TARGET_CPPFLAGS) -Os -fno-stack-protector" \
 	TARGET_LDFLAGS="$(TARGET_LDFLAGS) -Os" \
 	TARGET_NM="$(TARGET_NM)" \
 	TARGET_OBJCOPY="$(TARGET_OBJCOPY)" \
 	TARGET_STRIP="$(TARGET_CROSS)strip"

 HOST_GRUB2_CONF_OPTS = \
 	--with-platform=none \
 	--disable-grub-mkfont \
 	--enable-efiemu=no \
 	ac_cv_lib_lzma_lzma_code=no \
 	--enable-device-mapper=no \
 	--enable-libzfs=no \
 	--disable-werror

 define GRUB2_CONFIGURE_CMDS
 	$(foreach tuple, $(GRUB2_TUPLES-y), \
 		@$(call MESSAGE,Configuring $(tuple))
 		mkdir -p $(@D)/build-$(tuple)
 		cd $(@D)/build-$(tuple) && \
 		$(TARGET_CONFIGURE_OPTS) \
 		$(TARGET_CONFIGURE_ARGS) \
 		$(GRUB2_CONF_ENV) \
 		../configure \
 			--target=$(GRUB2_TARGET_$(tuple)) \
 			--with-platform=$(GRUB2_PLATFORM_$(tuple)) \
 			--host=$(GNU_TARGET_NAME) \
 			--build=$(GNU_HOST_NAME) \
 			--prefix=/ \
 			--exec-prefix=/ \
 			--disable-grub-mkfont \
 			--enable-efiemu=no \
 			ac_cv_lib_lzma_lzma_code=no \
 			--enable-device-mapper=no \
 			--enable-libzfs=no \
 			--disable-werror
 	)
 endef

 define GRUB2_BUILD_CMDS
 	$(foreach tuple, $(GRUB2_TUPLES-y), \
 		@$(call MESSAGE,Building $(tuple))
 		$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/build-$(tuple)
 	)
 endef

 define GRUB2_INSTALL_IMAGES_CMDS
 	$(foreach tuple, $(GRUB2_TUPLES-y), \
 		@$(call MESSAGE,Installing $(tuple) to images directory)
 		mkdir -p $(dir $(GRUB2_IMAGE_$(tuple)))
 		$(HOST_DIR)/bin/grub-mkimage \
 			-d $(@D)/build-$(tuple)/grub-core/ \
 			-O $(tuple) \
 			-o $(GRUB2_IMAGE_$(tuple)) \
 			-p "$(GRUB2_PREFIX_$(tuple))" \
 			$(if $(GRUB2_BUILTIN_CONFIG_$(tuple)), \
 				-c $(GRUB2_BUILTIN_CONFIG_$(tuple))) \
 			$(GRUB2_BUILTIN_MODULES_$(tuple))
 		$(INSTALL) -D -m 0644 boot/grub2/grub.cfg $(GRUB2_CFG_$(tuple))
 		$(if $(findstring $(GRUB2_PLATFORM_$(tuple)), pc), \
 			cat $(@D)/build-$(tuple)/grub-core/cdboot.img $(GRUB2_IMAGE_$(tuple)) > \
 				$(BINARIES_DIR)/grub-eltorito.img
 		) \
 	)
 endef

 ifeq ($(BR2_TARGET_GRUB2_INSTALL_TOOLS),y)
 define GRUB2_INSTALL_TARGET_CMDS
 	$(foreach tuple, $(GRUB2_TUPLES-y), \
 		@$(call MESSAGE,Installing $(tuple) to target directory)
 		$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/build-$(tuple) DESTDIR=$(TARGET_DIR) install
 	)
 endef
 endif

 $(eval $(generic-package))
 $(eval $(host-autotools-package))
	################################################################################
	#
	# grub2
	#
	################################################################################

	GRUB2_VERSION = 2.12
	GRUB2_SITE = http://ftp.gnu.org/gnu/grub
	GRUB2_SOURCE = grub-$(GRUB2_VERSION).tar.xz
	GRUB2_LICENSE = GPL-3.0+
	GRUB2_LICENSE_FILES = COPYING
	GRUB2_DEPENDENCIES = host-bison host-flex host-gawk host-grub2
	HOST_GRUB2_DEPENDENCIES = host-bison host-flex host-gawk
	GRUB2_INSTALL_IMAGES = YES

	# CVE-2019-14865 is about a flaw in the grub2-set-bootflag tool, which
	# doesn't exist upstream, but is added by the Redhat/Fedora
	# packaging. Not applicable to Buildroot.
	GRUB2_IGNORE_CVES += CVE-2019-14865
	# CVE-2020-15705 is related to a flaw in the use of the
	# grub_linuxefi_secure_validate(), which was added by Debian/Ubuntu
	# patches. The issue doesn't affect upstream Grub, and
	# grub_linuxefi_secure_validate() is not implemented in the grub2
	# version available in Buildroot.
	GRUB2_IGNORE_CVES += CVE-2020-15705
	# vulnerability is specific to the SUSE distribution
	GRUB2_IGNORE_CVES += CVE-2021-46705
	# vulnerability is specific to the Redhat distribution, affects a
	# downstream change from Redhat related to password authentication
	GRUB2_IGNORE_CVES += CVE-2023-4001
	# vulnerability is specific to the Redhat distribution, affects the
	# grub2-set-bootflag tool, which doesn't exist upstream
	GRUB2_IGNORE_CVES += CVE-2024-1048

	ifeq ($(BR2_TARGET_GRUB2_INSTALL_TOOLS),y)
	GRUB2_INSTALL_TARGET = YES
	else
	GRUB2_INSTALL_TARGET = NO
	endif
	GRUB2_CPE_ID_VENDOR = gnu

	GRUB2_BUILTIN_MODULES_PC = $(call qstrip,$(BR2_TARGET_GRUB2_BUILTIN_MODULES_PC))
	GRUB2_BUILTIN_MODULES_EFI = $(call qstrip,$(BR2_TARGET_GRUB2_BUILTIN_MODULES_EFI))
	GRUB2_BUILTIN_CONFIG_PC = $(call qstrip,$(BR2_TARGET_GRUB2_BUILTIN_CONFIG_PC))
	GRUB2_BUILTIN_CONFIG_EFI = $(call qstrip,$(BR2_TARGET_GRUB2_BUILTIN_CONFIG_EFI))
	GRUB2_BOOT_PARTITION = $(call qstrip,$(BR2_TARGET_GRUB2_BOOT_PARTITION))

	GRUB2_IMAGE_i386-pc = $(BINARIES_DIR)/grub.img
	GRUB2_CFG_i386-pc = $(TARGET_DIR)/boot/grub/grub.cfg
	GRUB2_PREFIX_i386-pc = ($(GRUB2_BOOT_PARTITION))/boot/grub
	GRUB2_TARGET_i386-pc = i386
	GRUB2_PLATFORM_i386-pc = pc
	GRUB2_BUILTIN_CONFIG_i386-pc = $(GRUB2_BUILTIN_CONFIG_PC)
	GRUB2_BUILTIN_MODULES_i386-pc = $(GRUB2_BUILTIN_MODULES_PC)
	GRUB2_TUPLES-$(BR2_TARGET_GRUB2_I386_PC) += i386-pc

	GRUB2_IMAGE_i386-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/bootia32.efi
	GRUB2_CFG_i386-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/grub.cfg
	GRUB2_PREFIX_i386-efi = /EFI/BOOT
	GRUB2_TARGET_i386-efi = i386
	GRUB2_PLATFORM_i386-efi = efi
	GRUB2_BUILTIN_CONFIG_i386-efi = $(GRUB2_BUILTIN_CONFIG_EFI)
	GRUB2_BUILTIN_MODULES_i386-efi = $(GRUB2_BUILTIN_MODULES_EFI)
	GRUB2_TUPLES-$(BR2_TARGET_GRUB2_I386_EFI) += i386-efi

	GRUB2_IMAGE_x86_64-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/bootx64.efi
	GRUB2_CFG_x86_64-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/grub.cfg
	GRUB2_PREFIX_x86_64-efi = /EFI/BOOT
	GRUB2_TARGET_x86_64-efi = x86_64
	GRUB2_PLATFORM_x86_64-efi = efi
	GRUB2_BUILTIN_CONFIG_x86_64-efi = $(GRUB2_BUILTIN_CONFIG_EFI)
	GRUB2_BUILTIN_MODULES_x86_64-efi = $(GRUB2_BUILTIN_MODULES_EFI)
	GRUB2_TUPLES-$(BR2_TARGET_GRUB2_X86_64_EFI) += x86_64-efi

	GRUB2_IMAGE_arm-uboot = $(BINARIES_DIR)/boot-part/grub/grub.img
	GRUB2_CFG_arm-uboot = $(BINARIES_DIR)/boot-part/grub/grub.cfg
	GRUB2_PREFIX_arm-uboot = ($(GRUB2_BOOT_PARTITION))/boot/grub
	GRUB2_TARGET_arm-uboot = arm
	GRUB2_PLATFORM_arm-uboot = uboot
	GRUB2_BUILTIN_CONFIG_arm-uboot = $(GRUB2_BUILTIN_CONFIG_PC)
	GRUB2_BUILTIN_MODULES_arm-uboot = $(GRUB2_BUILTIN_MODULES_PC)
	GRUB2_TUPLES-$(BR2_TARGET_GRUB2_ARM_UBOOT) += arm-uboot

	GRUB2_IMAGE_arm-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/bootarm.efi
	GRUB2_CFG_arm-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/grub.cfg
	GRUB2_PREFIX_arm-efi = /EFI/BOOT
	GRUB2_TARGET_arm-efi = arm
	GRUB2_PLATFORM_arm-efi = efi
	GRUB2_BUILTIN_CONFIG_arm-efi = $(GRUB2_BUILTIN_CONFIG_EFI)
	GRUB2_BUILTIN_MODULES_arm-efi = $(GRUB2_BUILTIN_MODULES_EFI)
	GRUB2_TUPLES-$(BR2_TARGET_GRUB2_ARM_EFI) += arm-efi

	GRUB2_IMAGE_arm64-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/bootaa64.efi
	GRUB2_CFG_arm64-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/grub.cfg
	GRUB2_PREFIX_arm64-efi = /EFI/BOOT
	GRUB2_TARGET_arm64-efi = aarch64
	GRUB2_PLATFORM_arm64-efi = efi
	GRUB2_BUILTIN_CONFIG_arm64-efi = $(GRUB2_BUILTIN_CONFIG_EFI)
	GRUB2_BUILTIN_MODULES_arm64-efi = $(GRUB2_BUILTIN_MODULES_EFI)
	GRUB2_TUPLES-$(BR2_TARGET_GRUB2_ARM64_EFI) += arm64-efi

	GRUB2_IMAGE_riscv64-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/bootriscv64.efi
	GRUB2_CFG_riscv64-efi = $(BINARIES_DIR)/efi-part/EFI/BOOT/grub.cfg
	GRUB2_PREFIX_riscv64-efi = /EFI/BOOT
	GRUB2_TARGET_riscv64-efi = riscv64
	GRUB2_PLATFORM_riscv64-efi = efi
	GRUB2_BUILTIN_CONFIG_riscv64-efi = $(GRUB2_BUILTIN_CONFIG_EFI)
	GRUB2_BUILTIN_MODULES_riscv64-efi = $(GRUB2_BUILTIN_MODULES_EFI)
	GRUB2_TUPLES-$(BR2_TARGET_GRUB2_RISCV64_EFI) += riscv64-efi

	# Grub2 is kind of special: it considers CC, LD and so on to be the
	# tools to build the host programs and uses TARGET_CC, TARGET_CFLAGS,
	# TARGET_CPPFLAGS, TARGET_LDFLAGS to build the bootloader itself.
	#
	# NOTE: TARGET_STRIP is overridden by !BR2_STRIP_strip, so always
	# use the cross compile variant to ensure grub2 builds

	HOST_GRUB2_CONF_ENV = \
	CPP="$(HOSTCC) -E"

	GRUB2_CONF_ENV = \
	CPP="$(TARGET_CC) -E" \
	TARGET_CC="$(TARGET_CC)" \
	CFLAGS="$(TARGET_CFLAGS) -Os" \
	TARGET_CFLAGS="$(TARGET_CFLAGS) -Os" \
	CPPFLAGS="$(TARGET_CPPFLAGS) -Os -fno-stack-protector" \
	TARGET_CPPFLAGS="$(TARGET_CPPFLAGS) -Os -fno-stack-protector" \
	TARGET_LDFLAGS="$(TARGET_LDFLAGS) -Os" \
	TARGET_NM="$(TARGET_NM)" \
	TARGET_OBJCOPY="$(TARGET_OBJCOPY)" \
	TARGET_STRIP="$(TARGET_CROSS)strip"

	HOST_GRUB2_CONF_OPTS = \
	--with-platform=none \
	--disable-grub-mkfont \
	--enable-efiemu=no \
	ac_cv_lib_lzma_lzma_code=no \
	--enable-device-mapper=no \
	--enable-libzfs=no \
	--disable-werror

	define GRUB2_CONFIGURE_CMDS
	$(foreach tuple, $(GRUB2_TUPLES-y), \
	@$(call MESSAGE,Configuring $(tuple))
	mkdir -p $(@D)/build-$(tuple)
	cd $(@D)/build-$(tuple) && \
	$(TARGET_CONFIGURE_OPTS) \
	$(TARGET_CONFIGURE_ARGS) \
	$(GRUB2_CONF_ENV) \
	../configure \
	--target=$(GRUB2_TARGET_$(tuple)) \
	--with-platform=$(GRUB2_PLATFORM_$(tuple)) \
	--host=$(GNU_TARGET_NAME) \
	--build=$(GNU_HOST_NAME) \
	--prefix=/ \
	--exec-prefix=/ \
	--disable-grub-mkfont \
	--enable-efiemu=no \
	ac_cv_lib_lzma_lzma_code=no \
	--enable-device-mapper=no \
	--enable-libzfs=no \
	--disable-werror
	)
	endef

	define GRUB2_BUILD_CMDS
	$(foreach tuple, $(GRUB2_TUPLES-y), \
	@$(call MESSAGE,Building $(tuple))
	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/build-$(tuple)
	)
	endef

	define GRUB2_INSTALL_IMAGES_CMDS
	$(foreach tuple, $(GRUB2_TUPLES-y), \
	@$(call MESSAGE,Installing $(tuple) to images directory)
	mkdir -p $(dir $(GRUB2_IMAGE_$(tuple)))
	$(HOST_DIR)/bin/grub-mkimage \
	-d $(@D)/build-$(tuple)/grub-core/ \
	-O $(tuple) \
	-o $(GRUB2_IMAGE_$(tuple)) \
	-p "$(GRUB2_PREFIX_$(tuple))" \
	$(if $(GRUB2_BUILTIN_CONFIG_$(tuple)), \
	-c $(GRUB2_BUILTIN_CONFIG_$(tuple))) \
	$(GRUB2_BUILTIN_MODULES_$(tuple))
	$(INSTALL) -D -m 0644 boot/grub2/grub.cfg $(GRUB2_CFG_$(tuple))
	$(if $(findstring $(GRUB2_PLATFORM_$(tuple)), pc), \
	cat $(@D)/build-$(tuple)/grub-core/cdboot.img $(GRUB2_IMAGE_$(tuple)) > \
	$(BINARIES_DIR)/grub-eltorito.img
	) \
	)
	endef

	ifeq ($(BR2_TARGET_GRUB2_INSTALL_TOOLS),y)
	define GRUB2_INSTALL_TARGET_CMDS
	$(foreach tuple, $(GRUB2_TUPLES-y), \
	@$(call MESSAGE,Installing $(tuple) to target directory)
	$(TARGET_MAKE_ENV) $(MAKE) -C $(@D)/build-$(tuple) DESTDIR=$(TARGET_DIR) install
	)
	endef
	endif

	$(eval $(generic-package))
	$(eval $(host-autotools-package))