mirror of
https://github.com/linuxboot/heads.git
synced 2024-12-19 04:57:55 +00:00
65 lines
2.1 KiB
Plaintext
65 lines
2.1 KiB
Plaintext
modules-$(CONFIG_LINUXBOOT) += linuxboot
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linuxboot_version := git
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linuxboot_repo := https://github.com/osresearch/linuxboot
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linuxboot_dir := linuxboot-$(linuxboot_version)
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linuxboot_configure := \
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touch .config
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# linuxboot builds are specialized on a per-target basis.
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# They can be specialized by defining $(CONFIG_LINUXBOOT_BOARD)
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# otherwise it is assumed that it will have the same name
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# as the Heads BOARD.
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linuxboot_board := $(or $(CONFIG_LINUXBOOT_BOARD),$(BOARD))
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linuxboot_target := \
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BOARD=$(linuxboot_board) \
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KERNEL=$(build)/$(BOARD)/bzImage \
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INITRD=$(build)/$(BOARD)/initrd.cpio.xz \
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$(if $(CONFIG_LINUXBOOT_ROM), ROM=$(pwd)/$(CONFIG_LINUXBOOT_ROM)) \
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all
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#
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# Most mainboards will define a ROM file that contains the vendor ROM
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# for the image. Provide a reasonable error if the ROM file doesn't exist.
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#
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ifneq "$(CONFIG_LINUXBOOT_ROM)" ""
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ifneq "y" "$(shell [ -r '$(CONFIG_LINUXBOOT_ROM)' ] && echo y)"
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$(error $(CONFIG_LINUXBOOT_ROM): you must provide a ROM file)
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endif
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# Force a rebuild of the LinuxBoot ROM if the vendor ROM changes
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linuxboot.intermediate: $(CONFIG_LINUXBOOT_ROM)
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endif
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# The output file from the LinuxBoot build is a full ROM
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# ready to flash onto the mainboard. There might be partial
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# firmware volumes as well, but that depends on the board
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# so this only retrieves the final one
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linuxboot_output := $(build)/$(linuxboot_dir)/build/$(linuxboot_board)/linuxboot.rom
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$(linuxboot_output): linuxboot.intermediate
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$(build)/$(BOARD)/linuxboot.rom: $(linuxboot_output)
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$(call do-copy,$<,$@)
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# The Linux kernel and Heads initrd must be built before linuxboot
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# unless the user has specified "FAST=1" on the make command line,
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# which will assume that the kernel and initrd are fresh
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ifneq "$(FAST)" "1"
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linuxboot_depends := linux initrd
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linuxboot.intermediate: $(build)/$(BOARD)/bzImage
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linuxboot.intermediate: $(build)/$(BOARD)/initrd.cpio.xz
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endif
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linuxboot.run: $(build)/$(BOARD)/linuxboot.rom
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$(MAKE) -C $(build)/$(linuxboot_dir) \
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BOARD:=$(linuxboot_board) \
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KERNEL=$(build)/$(BOARD)/bzImage \
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INITRD=$(build)/$(BOARD)/initrd.cpio.xz \
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run
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