76 lines
1.9 KiB
Makefile
76 lines
1.9 KiB
Makefile
## This file is part of the coreboot project.
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##
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## Copyright (C) 2017 Facebook Inc.
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## Copyright (C) 2018 9elements Cyber Security
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##
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## This program is free software; you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation; version 2 of the License.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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project_dir=linuxboot
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kernel_dir=$(project_dir)/kernel
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unexport $(COREBOOT_EXPORTS)
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all: linuxboot
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u-root:
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$(MAKE) -f targets/u-root.mk
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ifeq ($(CONFIG_LINUXBOOT_BUILD_INITRAMFS),y)
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ifeq ($(CONFIG_LINUXBOOT_UROOT),y)
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initramfs: u-root
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endif
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else
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ifneq ($(CONFIG_LINUXBOOT_INITRAMFS),)
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initramfs:
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if [[ ! -f "$(top)/$(CONFIG_LINUXBOOT_INITRAMFS)" ]]; then \
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echo "<< Linux initramfs '$(CONFIG_LINUXBOOT_INITRAMFS)' is missing. >>"; \
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exit 1; \
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fi
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endif
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endif
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initramfs_compressed: initramfs
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ifeq ($(CONFIG_LINUXBOOT_INITRAMFS_COMPRESSION_XZ),y)
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xz --keep --force --check=crc32 --lzma2=dict=1MiB $(top)/$(CONFIG_LINUXBOOT_INITRAMFS)
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endif
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ifeq ($(CONFIG_LINUXBOOT_COMPILE_KERNEL),y)
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ifeq ($(CONFIG_LINUXBOOT_ARCH),arm64)
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kernel: initramfs
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if [[ ! -f "$(top)/$(CONFIG_LINUXBOOT_DTB_FILE)" ]]; then \
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echo "<< Linux kernel devicetree is missing. >>"; \
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exit 1; \
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fi
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$(MAKE) -f targets/linux.mk
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else
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kernel:
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$(MAKE) -f targets/linux.mk
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endif
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else
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kernel:
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if [[ ! -f "$(top)/$(CONFIG_LINUXBOOT_KERNEL)" ]]; then \
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echo "<< Linux kernel '$(CONFIG_LINUXBOOT_KERNEL)' is missing. >>"; \
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exit 1; \
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fi
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endif
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linuxboot: kernel initramfs_compressed
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clean:
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if [ -d "$(kernel_dir)" ]; then rm -rf $(kernel_dir); fi
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rm -f $(project_dir)/u-root
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rm -f $(project_dir)/initramfs*
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distclean:
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rm -rf $(project_dir)
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.PHONY: linuxboot kernel initramfs_compressed initramfs u-root clean distclean
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