[PATCH v3 6/9] kbuild: consolidate Devicetree dtb build rules

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Hi Rob,


2018?9?29?(?) 0:43 Rob Herring <robh at kernel.org>:

> +#
> ---------------------------------------------------------------------------
> +# Devicetree files
> +
> +ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),)
> +dtstree := arch/$(SRCARCH)/boot/dts
> +endif
> +
> +ifneq ($(dtstree),)
> +
> +%.dtb : scripts_dtc

%.dtb: prepare3 prepare


because we need to make sure KERNELRELEASE
is correctly defined before dtbs_install happens.


> +       $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
> +
> +PHONY += dtbs dtbs_install
> +dtbs: scripts_dtc


dtbs: prepare3 scripts_dtc



> +       $(Q)$(MAKE) $(build)=$(dtstree)
> +
> +dtbs_install: dtbs


Please do not have dtbs_install to depend on dtbs.

No install targets should ever trigger building anything
in the source tree.


For the background, see the commit log of
19514fc665ffbce624785f76ee7ad0ea6378a527




> +       $(Q)$(MAKE) $(dtbinst)=$(dtstree)
> +
> +ifdef CONFIG_OF_EARLY_FLATTREE
> +all: dtbs
> +endif
> +
> +endif
> +
> +PHONY += scripts_dtc
> +scripts_dtc: scripts_basic
> +       $(Q)$(MAKE) $(build)=scripts/dtc
> +
>  #
> ---------------------------------------------------------------------------
>  # Modules
>


-- 
Best Regards
Masahiro Yamada



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