diff options
Diffstat (limited to 'payloads/external/LinuxBoot/targets/linux.mk')
| -rw-r--r-- | payloads/external/LinuxBoot/targets/linux.mk | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/payloads/external/LinuxBoot/targets/linux.mk b/payloads/external/LinuxBoot/targets/linux.mk new file mode 100644 index 0000000000..07700b8605 --- /dev/null +++ b/payloads/external/LinuxBoot/targets/linux.mk @@ -0,0 +1,95 @@ +## 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. +## + +kernel_tarball=https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-$(CONFIG_LINUXBOOT_KERNEL_VERSION).tar.xz +project_dir=linuxboot +kernel_dir=$(project_dir)/kernel + +XGCCPATH?=$(PWD)/util/crossgcc/xgcc/bin +ifeq ($(CONFIG_LINUXBOOT_ARCH),i386) +LINUXBOOT_COMPILE?=$(XGCCPATH)/i386-linux- +ARCH?=x86 +else ifeq ($(CONFIG_LINUXBOOT_ARCH),amd64) +LINUXBOOT_COMPILE?=$(XGCCPATH)/x86_64-linux- +ARCH?=x86_64 +else ifeq ($(CONFIG_LINUXBOOT_ARCH),arm64) +LINUXBOOT_COMPILE?=$(XGCCPATH)/aarch64-linux- +ARCH?=arm64 +endif + +OBJCOPY:=$(LINUXBOOT_COMPILE)objcopy + +all: kernel + +toolchain: + if [[ ! -x "$(LINUXBOOT_COMPILE)gcc" ]]; then \ + echo "Toolchain '$(LINUXBOOT_COMPILE)*' is missing."; \ + exit 1; \ + fi + +$(kernel_dir)/.config: + echo " WWW Download Linux $(CONFIG_LINUXBOOT_KERNEL_VERSION)" + mkdir -p $(kernel_dir) +ifeq ("$(wildcard $(kernel_dir)/README)","") + curl -s $(kernel_tarball) | tar xJ -C $(kernel_dir) --strip 1 +endif + +config: $(kernel_dir)/.config + echo " CONFIG Linux $(CONFIG_LINUXBOOT_KERNEL_VERSION)" +ifneq ($(CONFIG_LINUXBOOT_KERNEL_CONFIGFILE),) + cp $(CONFIG_LINUXBOOT_KERNEL_CONFIGFILE) $(kernel_dir)/.config +else ifeq ($(CONFIG_LINUXBOOT_ARCH),i386) + cp x86/defconfig $(kernel_dir)/.config +else ifeq ($(CONFIG_LINUXBOOT_ARCH),amd64) + cp x86_64/defconfig $(kernel_dir)/.config +else ifeq ($(CONFIG_LINUXBOOT_ARCH),arm64) + cp arm64/defconfig $(kernel_dir)/.config +endif + +ifneq (,$(filter $(CONFIG_LINUXBOOT_ARCH),i386 amd64)) +$(kernel_dir)/arch/x86/boot/bzImage: config toolchain +else ifeq ($(CONFIG_LINUXBOOT_ARCH),arm64) +$(kernel_dir)/vmlinux: config toolchain +endif + echo " MAKE Kernel $(CONFIG_LINUXBOOT_KERNEL_VERSION)" + $(MAKE) -C $(kernel_dir) olddefconfig CROSS_COMPILE=$(LINUXBOOT_COMPILE) ARCH=$(ARCH) + $(MAKE) -C $(kernel_dir) -j $(CPUS) CROSS_COMPILE=$(LINUXBOOT_COMPILE) ARCH=$(ARCH) + +ifneq (,$(filter $(CONFIG_LINUXBOOT_ARCH),i386 amd64)) +$(project_dir)/bzImage: $(kernel_dir)/arch/x86/boot/bzImage + cp $< $@ +else ifeq ($(CONFIG_LINUXBOOT_ARCH),arm64) +$(project_dir)/vmlinux.bin: $(kernel_dir)/vmlinux + $(OBJCOPY) -O binary $< $@ + +$(project_dir)/target.dtb: $(PWD)/$(CONFIG_LINUXBOOT_DTB_FILE) + cp $< $@ + +$(project_dir)/vmlinux.bin.lzma: $(project_dir)/vmlinux.bin + xz -c -k -f --format=lzma --lzma1=dict=1MiB,lc=3,lp=0,pb=3 $< > $@ + +$(project_dir)/uImage: $(project_dir)/vmlinux.bin.lzma $(project_dir)/../arm64/kernel_fdt_lzma.its $(project_dir)/target.dtb + cp $(project_dir)/../arm64/kernel_fdt_lzma.its $(project_dir) + cp $(PWD)/$(CONFIG_LINUXBOOT_INITRAMFS) $(project_dir)/u-initramfs + mkimage -f $(project_dir)/kernel_fdt_lzma.its $@ +endif + +ifneq (,$(filter $(CONFIG_LINUXBOOT_ARCH),i386 amd64)) +kernel: $(project_dir)/bzImage +else ifeq ($(CONFIG_LINUXBOOT_ARCH),arm64) +kernel: $(project_dir)/uImage +endif + +.PHONY: kernel config toolchain |