| ## This file is part of the coreboot project. |
| ## |
| ## Copyright (C) 2017 Facebook Inc. |
| ## Copyright (C) 2018 9elements Cyber Security |
| ## |
| ## 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. |
| ## |
| |
| project_dir=linuxboot |
| kernel_dir=$(project_dir)/kernel |
| |
| unexport $(COREBOOT_EXPORTS) |
| |
| all: linuxboot |
| |
| u-root: |
| $(MAKE) -f targets/u-root.mk |
| |
| ifeq ($(CONFIG_LINUXBOOT_BUILD_INITRAMFS),y) |
| ifeq ($(CONFIG_LINUXBOOT_UROOT),y) |
| initramfs: u-root |
| endif |
| else |
| ifneq ($(CONFIG_LINUXBOOT_INITRAMFS),) |
| initramfs: |
| if [[ ! -f "$(top)/$(CONFIG_LINUXBOOT_INITRAMFS)" ]]; then \ |
| echo "<< Linux initramfs '$(CONFIG_LINUXBOOT_INITRAMFS)' is missing. >>"; \ |
| exit 1; \ |
| fi |
| endif |
| endif |
| |
| initramfs_compressed: initramfs |
| ifeq ($(CONFIG_LINUXBOOT_INITRAMFS_COMPRESSION_XZ),y) |
| xz --keep --force --check=crc32 --lzma2=dict=1MiB $(top)/$(CONFIG_LINUXBOOT_INITRAMFS) |
| endif |
| |
| ifeq ($(CONFIG_LINUXBOOT_COMPILE_KERNEL),y) |
| ifeq ($(CONFIG_LINUXBOOT_ARCH),arm64) |
| kernel: initramfs |
| if [[ ! -f "$(top)/$(CONFIG_LINUXBOOT_DTB_FILE)" ]]; then \ |
| echo "<< Linux kernel devicetree is missing. >>"; \ |
| exit 1; \ |
| fi |
| $(MAKE) -f targets/linux.mk |
| else |
| kernel: |
| $(MAKE) -f targets/linux.mk |
| endif |
| else |
| kernel: |
| if [[ ! -f "$(top)/$(CONFIG_LINUXBOOT_KERNEL)" ]]; then \ |
| echo "<< Linux kernel '$(CONFIG_LINUXBOOT_KERNEL)' is missing. >>"; \ |
| exit 1; \ |
| fi |
| endif |
| |
| linuxboot: kernel initramfs_compressed |
| |
| clean: |
| if [ -d "$(kernel_dir)" ]; then rm -rf $(kernel_dir); fi |
| rm -f $(project_dir)/u-root |
| rm -f $(project_dir)/initramfs* |
| |
| distclean: |
| rm -rf $(project_dir) |
| |
| .PHONY: linuxboot kernel initramfs_compressed initramfs u-root clean distclean |