Re: [PATCH 2/6] dts, kbuild: Factor out dtbs install rules to Makefile.dtbinst

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On Fri, Sep 5, 2014 at 1:48 AM, Robert Richter <rric@xxxxxxxxxx> wrote:
> From: Robert Richter <rrichter@xxxxxxxxxx>
>
> Move dtbs install rules to Makefile.dtbinst. This change is needed to
> implement support for dts vendor subdirs. The change makes Makefiles
> easier and smaller as no longer the dtbs_install rule needs to be
> defined. Another advantage is that install goals are not encoded in
> targets anymore (%.dtb_dtbinst_).
>
> Signed-off-by: Robert Richter <rrichter@xxxxxxxxxx>
> ---
>  arch/arm/Makefile            |  6 +++++-
>  arch/arm/boot/dts/Makefile   |  2 --
>  arch/arm64/Makefile          |  6 +++++-
>  arch/arm64/boot/dts/Makefile |  2 --
>  scripts/Kbuild.include       |  6 ++++++
>  scripts/Makefile.dtbinst     | 38 ++++++++++++++++++++++++++++++++++++++
>  scripts/Makefile.lib         | 12 ------------
>  7 files changed, 54 insertions(+), 18 deletions(-)
>  create mode 100644 scripts/Makefile.dtbinst
>
> diff --git a/arch/arm/Makefile b/arch/arm/Makefile
> index 0ce9d0f71f2a..1963d9a9a2c4 100644
> --- a/arch/arm/Makefile
> +++ b/arch/arm/Makefile
> @@ -313,9 +313,13 @@ $(BOOT_TARGETS): vmlinux
>         $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
>
>  PHONY += dtbs dtbs_install
> -dtbs dtbs_install: prepare scripts
> +
> +dtbs: prepare scripts
>         $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $@
>
> +dtbs_install:
> +       $(Q)$(MAKE) $(dtbinst)=$(boot)/dts MACHINE=$(MACHINE)

Can't you get rid of MACHINE here, too?

Rob

> +
>  # We use MRPROPER_FILES and CLEAN_FILES now
>  archclean:
>         $(Q)$(MAKE) $(clean)=$(boot)
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index b8c5cd3ddeb9..ab40afb87fb2 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -502,5 +502,3 @@ dtbs: $(addprefix $(obj)/, $(dtb-y))
>         $(Q)rm -f $(obj)/../*.dtb
>
>  clean-files := *.dtb
> -
> -dtbs_install: $(addsuffix _dtbinst_, $(dtb-y))
> diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
> index e0a8292bc832..1627861e9bbd 100644
> --- a/arch/arm64/Makefile
> +++ b/arch/arm64/Makefile
> @@ -72,9 +72,13 @@ zinstall install: vmlinux
>         $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
>
>  PHONY += dtbs dtbs_install
> -dtbs dtbs_install: prepare scripts
> +
> +dtbs: prepare scripts
>         $(Q)$(MAKE) $(build)=$(boot)/dts $@
>
> +dtbs_install:
> +       $(Q)$(MAKE) $(dtbinst)=$(boot)/dts
> +
>  PHONY += vdso_install
>  vdso_install:
>         $(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso $@
> diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
> index 82e1c4cf8780..0a14c3828301 100644
> --- a/arch/arm64/boot/dts/Makefile
> +++ b/arch/arm64/boot/dts/Makefile
> @@ -7,5 +7,3 @@ targets += $(dtb-y)
>  dtbs: $(addprefix $(obj)/, $(dtb-y))
>
>  clean-files := *.dtb
> -
> -dtbs_install: $(addsuffix _dtbinst_, $(dtb-y))
> diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
> index 8a9a4e1c7eab..861f5b4d48a2 100644
> --- a/scripts/Kbuild.include
> +++ b/scripts/Kbuild.include
> @@ -179,6 +179,12 @@ build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj
>  # $(Q)$(MAKE) $(modbuiltin)=dir
>  modbuiltin := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.modbuiltin obj
>
> +###
> +# Shorthand for $(Q)$(MAKE) -f scripts/Makefile.dtbinst obj=
> +# Usage:
> +# $(Q)$(MAKE) $(dtbinst)=dir
> +dtbinst := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.dtbinst obj
> +
>  # Prefix -I with $(srctree) if it is not an absolute path.
>  # skip if -I has no parameter
>  addtree = $(if $(patsubst -I%,%,$(1)), \
> diff --git a/scripts/Makefile.dtbinst b/scripts/Makefile.dtbinst
> new file mode 100644
> index 000000000000..54286cccc289
> --- /dev/null
> +++ b/scripts/Makefile.dtbinst
> @@ -0,0 +1,38 @@
> +# ==========================================================================
> +# Installing dtb files
> +#
> +# Installs all dtb files listed in $(dtb-y) either in the
> +# INSTALL_DTBS_PATH directory or the default location:
> +#
> +#   $INSTALL_PATH/dtbs/$KERNELRELEASE
> +#
> +# ==========================================================================
> +
> +src := $(obj)
> +
> +PHONY := __dtbs_install
> +__dtbs_install:
> +
> +include include/config/auto.conf
> +include scripts/Kbuild.include
> +include $(srctree)/$(obj)/Makefile
> +
> +PHONY += __dtbs_install_prep
> +__dtbs_install_prep:
> +       $(Q)if [ -d $(INSTALL_DTBS_PATH).old ]; then rm -rf $(INSTALL_DTBS_PATH).old; fi
> +       $(Q)if [ -d $(INSTALL_DTBS_PATH) ]; then mv $(INSTALL_DTBS_PATH) $(INSTALL_DTBS_PATH).old; fi
> +       $(Q)mkdir -p $(INSTALL_DTBS_PATH)
> +
> +dtbinst-files  := $(dtb-y)
> +
> +# Helper targets for Installing DTBs into the boot directory
> +quiet_cmd_dtb_install =        INSTALL $<
> +      cmd_dtb_install =        cp $< $(2)
> +
> +$(dtbinst-files): %.dtb: $(obj)/%.dtb | __dtbs_install_prep
> +       $(call cmd,dtb_install,$(INSTALL_DTBS_PATH))
> +
> +PHONY += $(dtbinst-files)
> +__dtbs_install: $(dtbinst-files)
> +
> +.PHONY: $(PHONY)
> diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
> index 260bf8acfce9..83a453794266 100644
> --- a/scripts/Makefile.lib
> +++ b/scripts/Makefile.lib
> @@ -274,18 +274,6 @@ $(obj)/%.dtb: $(src)/%.dts FORCE
>
>  dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
>
> -# Helper targets for Installing DTBs into the boot directory
> -quiet_cmd_dtb_install =        INSTALL $<
> -      cmd_dtb_install =        cp $< $(2)
> -
> -_dtbinst_pre_:
> -       $(Q)if [ -d $(INSTALL_DTBS_PATH).old ]; then rm -rf $(INSTALL_DTBS_PATH).old; fi
> -       $(Q)if [ -d $(INSTALL_DTBS_PATH) ]; then mv $(INSTALL_DTBS_PATH) $(INSTALL_DTBS_PATH).old; fi
> -       $(Q)mkdir -p $(INSTALL_DTBS_PATH)
> -
> -%.dtb_dtbinst_: $(obj)/%.dtb _dtbinst_pre_
> -       $(call cmd,dtb_install,$(INSTALL_DTBS_PATH))
> -
>  # Bzip2
>  # ---------------------------------------------------------------------------
>
> --
> 2.0.1
>
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