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54 lines
1.5 KiB
Plaintext
54 lines
1.5 KiB
Plaintext
#
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# u-root go runtime
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#
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# This is not a normal Heads module, since it builds all of its
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# own dependencies.
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#
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u-root_url := github.com/u-root/u-root
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u-root_output := $(build)/$(BOARD)/u-root.cpio
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UROOT_CMDS ?=
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export GOPATH=$(build)/go
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u-root_src_cmds := $(foreach cmd,$(UROOT_CMDS),github.com/u-root/u-root/cmds/$(cmd))
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u-root_build := $(GOPATH)/bin/u-root
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$(GOPATH)/bin/u-root:
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go get github.com/u-root/u-root/...
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#
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# If the board directory has its own go commands, copy them
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# into the u-root tree so that they will be bundled into the go initrd
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# TODO: generalize this to support more commands
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# TODO: fix this sort that it doesn't leave commands lying around
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#
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ifeq "y" "$(shell [ -r 'boards/$(BOARD)/uinit.go' ] && echo y)"
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u-root_uinit := $(GOPATH)/src/github.com/u-root/u-root/cmds/uinit/uinit.go
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$(u-root_uinit): $(u-root_build) boards/$(BOARD)/uinit.go
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$(call install,boards/$(BOARD)/uinit.go,$@)
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endif
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$(u-root_output): $(u-root_build) $(u-root_uinit)
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$(call do,U-ROOT,$@,\
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$(GOPATH)/bin/u-root \
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-build=bb \
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-format=cpio \
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-o $@ \
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$(u-root_src_cmds)\
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)
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# Override the initrd inputs and add in the kernel modules
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initrd-$(CONFIG_UROOT) += $(u-root_output)
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ifeq "$(CONFIG_UROOT)" "y"
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# If we are building for u-root, disable the default CONFIG_HEADS
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# so that the heads/initrd/etc directories will not be included
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CONFIG_HEADS=n
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# Since we do not include u-root in modules-y, we have to define our
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# own intermediate and clean targets here
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$(build)/$(u-root_dir)/.build: $(u-root_output)
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u-root.clean:
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$(RM) $(u-root_output)
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endif
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