c202be793f
There were some issues with the current Linuxboot Makefiles.
- multithreaded compilation didn't work, because some prerequisites
were missing
- initramfs wasn't added for x86 qemu boot.
- riscv support was incomplete
It began with separate patches, but resulted in a clean up patch, that
is hard to separate. The most important changes are the following:
- Instead of phony targets, actual files are now used as prerequisites
- riscv can now be used as target
- initramfs works now also for x86
- instead of querying the most recent version from the internet, I set a
known working version (because I tested it) that can be customized
and/or upgraded in the future. The reasons:
- querying the version from the internet requires a constant
connection to the internet even after linux kernel is already
build (aka subsequent builds).
- one usually wants to use a known working version, but optionally
still have the posibillity to choose a custom one. This patch
introduces this possibility in its most simple form.
- I removed as much ifeq statements as possible and moved that
responsibility to Kconfig, because they tend to make the
Makefile less readable.
Signed-off-by: Maximilian Brune <maximilian.brune@9elements.com>
Change-Id: I25e757108e0dd473969fe5a192ad0733f1fe6286
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76150
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
51 lines
1.8 KiB
Makefile
51 lines
1.8 KiB
Makefile
## SPDX-License-Identifier: GPL-2.0-only
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uroot_package = github.com/u-root/u-root
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uroot_build = build/go/src/$(uroot_package)
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UROOT_ARCH-$(CONFIG_LIBUXBOOT_X86_64) = amd64
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UROOT_ARCH-$(CONFIG_LINUXBOOT_X86) = 386
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UROOT_ARCH-$(CONFIG_LINUXBOOT_ARM64) = arm64
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UROOT_ARCH-$(CONFIG_LINUXBOOT_RISCV_RV64) = riscv64
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go_version = $(shell go version | sed -nr 's/.*go([0-9]+\.[0-9]+.?[0-9]?).*/\1/p' )
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go_version_major = $(shell echo $(go_version) | sed -nr 's/^([0-9]+)\.([0-9]+)\.?([0-9]*)$$/\1/p')
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go_version_minor = $(shell echo $(go_version) | sed -nr 's/^([0-9]+)\.([0-9]+)\.?([0-9]*)$$/\2/p')
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uroot_args += -build=$(CONFIG_LINUXBOOT_UROOT_FORMAT)
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uroot_args += -initcmd $(CONFIG_LINUXBOOT_UROOT_INITCMD)
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uroot_args += -uinitcmd=$(CONFIG_LINUXBOOT_UROOT_UINITCMD)
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uroot_args += -defaultsh $(CONFIG_LINUXBOOT_UROOT_SHELL)
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ifneq (CONFIG_LINUXBOOT_UROOT_FILES,)
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uroot_args += $(foreach file,$(CONFIG_LINUXBOOT_UROOT_FILES),-files $(PWD)/$(file))
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endif
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uroot_cmds = $(CONFIG_LINUXBOOT_UROOT_COMMANDS)
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version:
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ifeq ("$(go_version)","")
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printf "\n<<Please install Golang >= 1.9 for u-root mode>>\n\n"
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exit 1
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endif
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ifeq ($(shell if [ $(go_version_major) -eq 1 ]; then echo y; fi),y)
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ifeq ($(shell if [ $(go_version_minor) -lt 9 ]; then echo y; fi),y)
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printf "\n Golang version $(go_version) currently installed.\n\
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<<Please install Golang >= 1.9 for u-root mode>>\n\n"
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exit 1
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endif
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endif
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$(uroot_build):
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git clone https://$(uroot_package) $(uroot_build)
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git -C $(uroot_build) checkout --quiet $(CONFIG_LINUXBOOT_UROOT_VERSION)
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$(uroot_build)/u-root: $(uroot_build)
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cd $(uroot_build); \
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go build -o u-root .
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#$(CONFIG_LINUXBOOT_INITRAMFS_PATH)
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build/initramfs_u-root.cpio: $(uroot_build)/u-root
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GOARCH=$(UROOT_ARCH-y) $(uroot_build)/u-root \
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-uroot-source $(uroot_build) \
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$(uroot_args) -o build/initramfs_u-root.cpio $(uroot_cmds)
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