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## This file is part of the coreboot project.
##
## Copyright (C) 2017 Facebook Inc.
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; version 2 of the License.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
uroot_git_repo=https://github.com/u-root/u-root.git
uroot_dir=$(project_dir)/go/src/github.com/u-root/u-root
go_check=$(shell command -v go 1>/dev/null 2>&1 && echo go)
project_dir=$(shell pwd)/linuxboot
project_name=u-root
go_path_dir=$(shell pwd)/linuxboot/go
all: build
check:
ifneq ($(go_check),go)
printf "\n<<Please install Golang >= 1.9 for u-root mode>>\n\n"
exit 1
endif
mkdir -p $(project_dir)/go/src/github.com/u-root
$(uroot_dir)/.git:
echo " Git Cloning u-root $(CONFIG_LINUXBOOT_UROOT_VERSION)"
git clone $(uroot_git_repo) $(uroot_dir)
fetch: check $(uroot_dir)/.git
-cd "$(uroot_dir)" && git fetch origin
checkout: fetch
cd "$(uroot_dir)" && \
if ! git diff --quiet _cb_checkout "$(CONFIG_LINUXBOOT_UROOT_VERSION)" -- 2>/dev/null; \
then \
printf " CHECKOUT $(project_name) [$(CONFIG_LINUXBOOT_UROOT_VERSION)]\n"; \
git checkout $$(git rev-parse HEAD) >/dev/null 2>&1; \
git branch -f _cb_checkout "$(CONFIG_LINUXBOOT_UROOT_VERSION)" && \
git checkout _cb_checkout && \
$(if $(project_patches), \
for patch in $(project_patches); do \
printf " PATCH $$patch\n"; \
git am --keep-cr "$$patch" || \
( printf "Error when applying patches.\n"; \
git am --abort; exit 1; ); \
done;,true;) \
fi
$(uroot_dir)/u-root: $(uroot_dir)/u-root.go
echo " GO u-root"
cd $(uroot_dir); GOPATH=$(go_path_dir) go build u-root.go
$(project_dir)/initramfs.cpio.xz: checkout $(uroot_dir)/u-root
echo " MAKE u-root $(CONFIG_LINUXBOOT_UROOT_VERSION)"
ifneq ($(CONFIG_LINUXBOOT_UROOT_COMMANDS),)
ifneq ($(CONFIG_LINUXBOOT_UROOT_FILES),)
cd $(uroot_dir); GOARCH=$(CONFIG_LINUXBOOT_ARCH) GOPATH=$(go_path_dir) ./u-root \
-build=bb -files $(CONFIG_LINUXBOOT_UROOT_FILES) -o $(project_dir)/initramfs.cpio \
./cmds/{$(CONFIG_LINUXBOOT_UROOT_COMMANDS)}
else
cd $(uroot_dir); GOARCH=$(CONFIG_LINUXBOOT_ARCH) GOPATH=$(go_path_dir) ./u-root \
-build=bb -o $(project_dir)/initramfs.cpio ./cmds/{$(CONFIG_LINUXBOOT_UROOT_COMMANDS)}
endif
else
ifneq ($(CONFIG_LINUXBOOT_UROOT_FILES),)
cd $(uroot_dir); GOARCH=$(CONFIG_LINUXBOOT_ARCH) GOPATH=$(go_path_dir) ./u-root \
-build=bb -files $(CONFIG_LINUXBOOT_UROOT_FILES) -o $(project_dir)/initramfs.cpio
else
cd $(uroot_dir); GOARCH=$(CONFIG_LINUXBOOT_ARCH) GOPATH=$(go_path_dir) ./u-root \
-build=bb -o $(project_dir)/initramfs.cpio
endif
endif
xz -f --check=crc32 -9 --lzma2=dict=1MiB --threads=$(CPUS) $(project_dir)/initramfs.cpio
build: $(project_dir)/initramfs.cpio.xz
.PHONY: build checkout fetch all check
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