afa974b771
In Kbuild, if_changed and friends must have FORCE as a prerequisite.
Hence, $(filter-out FORCE,$^) or $(filter-out $(PHONY),$^) is a common
idiom to get the names of all the prerequisites except phony targets.
Add real-prereqs as a shorthand.
Note:
We cannot replace $(filter %.o,$^) in cmd_link_multi-m because $^ may
include auto-generated dependencies from the .*.cmd file when a single
object module is changed into a multi object module. Refer to commit
69ea912fda ("kbuild: remove unneeded link_multi_deps"). I added some
comment to avoid accidental breakage.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Rob Herring <robh@kernel.org>
28 lines
946 B
Makefile
28 lines
946 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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DT_DOC_CHECKER ?= dt-doc-validate
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DT_EXTRACT_EX ?= dt-extract-example
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DT_MK_SCHEMA ?= dt-mk-schema
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DT_MK_SCHEMA_FLAGS := $(if $(DT_SCHEMA_FILES), -u)
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quiet_cmd_chk_binding = CHKDT $(patsubst $(srctree)/%,%,$<)
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cmd_chk_binding = $(DT_DOC_CHECKER) $< ; \
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$(DT_EXTRACT_EX) $< > $@
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$(obj)/%.example.dts: $(src)/%.yaml FORCE
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$(call if_changed,chk_binding)
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DT_TMP_SCHEMA := processed-schema.yaml
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extra-y += $(DT_TMP_SCHEMA)
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quiet_cmd_mk_schema = SCHEMA $@
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cmd_mk_schema = $(DT_MK_SCHEMA) $(DT_MK_SCHEMA_FLAGS) -o $@ $(real-prereqs)
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DT_DOCS = $(shell cd $(srctree)/$(src) && find * -name '*.yaml')
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DT_SCHEMA_FILES ?= $(addprefix $(src)/,$(DT_DOCS))
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extra-y += $(patsubst $(src)/%.yaml,%.example.dts, $(DT_SCHEMA_FILES))
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extra-y += $(patsubst $(src)/%.yaml,%.example.dtb, $(DT_SCHEMA_FILES))
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$(obj)/$(DT_TMP_SCHEMA): $(DT_SCHEMA_FILES) FORCE
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$(call if_changed,mk_schema)
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