1## SPDX-License-Identifier: GPL-2.0-only 2 3uroot_package = github.com/u-root/u-root 4uroot_build = build/go/src/$(uroot_package) 5 6UROOT_ARCH-$(CONFIG_LINUXBOOT_X86_64) = amd64 7UROOT_ARCH-$(CONFIG_LINUXBOOT_X86) = 386 8UROOT_ARCH-$(CONFIG_LINUXBOOT_ARM64) = arm64 9UROOT_ARCH-$(CONFIG_LINUXBOOT_RISCV_RV64) = riscv64 10 11go_version = $(shell go version | sed -nr 's/.*go([0-9]+\.[0-9]+.?[0-9]?).*/\1/p' ) 12go_version_major = $(shell echo $(go_version) | sed -nr 's/^([0-9]+)\.([0-9]+)\.?([0-9]*)$$/\1/p') 13go_version_minor = $(shell echo $(go_version) | sed -nr 's/^([0-9]+)\.([0-9]+)\.?([0-9]*)$$/\2/p') 14 15uroot_args += -build=$(CONFIG_LINUXBOOT_UROOT_FORMAT) 16uroot_args += -initcmd $(CONFIG_LINUXBOOT_UROOT_INITCMD) 17uroot_args += -uinitcmd=$(CONFIG_LINUXBOOT_UROOT_UINITCMD) 18uroot_args += -defaultsh $(CONFIG_LINUXBOOT_UROOT_SHELL) 19ifneq (CONFIG_LINUXBOOT_UROOT_FILES,) 20uroot_args += $(foreach file,$(CONFIG_LINUXBOOT_UROOT_FILES),-files $(PWD)/$(file)) 21endif 22 23uroot_cmds = $(CONFIG_LINUXBOOT_UROOT_COMMANDS) 24 25version: 26ifeq ("$(go_version)","") 27 printf "\n<<Please install Golang >= 1.9 for u-root mode>>\n\n" 28 exit 1 29endif 30ifeq ($(shell if [ $(go_version_major) -eq 1 ]; then echo y; fi),y) 31ifeq ($(shell if [ $(go_version_minor) -lt 9 ]; then echo y; fi),y) 32 printf "\n Golang version $(go_version) currently installed.\n\ 33 <<Please install Golang >= 1.9 for u-root mode>>\n\n" 34 exit 1 35endif 36endif 37 38$(uroot_build): 39 git clone https://$(uroot_package) $(uroot_build) 40 git -C $(uroot_build) checkout --quiet $(CONFIG_LINUXBOOT_UROOT_VERSION) 41 42$(uroot_build)/u-root: $(uroot_build) 43 cd $(uroot_build); \ 44 go build -o u-root . 45 46#$(CONFIG_LINUXBOOT_INITRAMFS_PATH) 47build/initramfs_u-root.cpio: $(uroot_build)/u-root 48 GOARCH=$(UROOT_ARCH-y) $(uroot_build)/u-root \ 49 -uroot-source $(uroot_build) \ 50 $(uroot_args) -o build/initramfs_u-root.cpio $(uroot_cmds) 51