| ## SPDX-License-Identifier: GPL-2.0-only |
| |
| project_dir=linuxboot |
| |
| 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: |
| rm -rf $(project_dir)/kernel* |
| rm -f $(project_dir)/u-root |
| rm -f $(project_dir)/initramfs* |
| rm -f $(project_dir)/bzImage |
| |
| distclean: |
| rm -rf $(project_dir) |
| |
| .PHONY: linuxboot kernel initramfs_compressed initramfs u-root clean distclean |