Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'kbuild-fixes-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- fix missed rebuild of DT schema check
- add some phony targets to PHONY
- fix comments and documents
* tag 'kbuild-fixes-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: get rid of trailing slash from subdir- example
kbuild: add dt_binding_check to PHONY in a correct place
kbuild: add dtbs_check to PHONY
kbuild: remove unneeded semicolon at the end of cmd_dtb_check
kbuild: fix DT binding schema rule to detect command line changes
kbuild: remove wrong documentation about mandatory-y
kbuild: add comment for V=2 mode
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+1
-4
Documentation/kbuild/makefiles.rst
+1
-4
Documentation/kbuild/makefiles.rst
···
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Example::
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#arch/x86/boot/Makefile
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-
subdir- := compressed/
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+
subdir- := compressed
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The above assignment instructs kbuild to descend down in the
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directory compressed/ when "make clean" is executed.
···
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This works like optional generic-y. If a mandatory header is missing
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in arch/$(ARCH)/include/(uapi/)/asm, Kbuild will automatically generate
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a wrapper of the asm-generic one.
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The convention is to list one subdir per line and
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-
preferably in alphabetic order.
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8 Kbuild Variables
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==================
+3
-1
Makefile
+3
-1
Makefile
···
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#
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# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
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# If KBUILD_VERBOSE equals 1 then the above command is displayed.
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# If KBUILD_VERBOSE equals 2 then give the reason why each target is rebuilt.
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#
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# To put more focus on warnings, be less verbose as default
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# Use 'make V=1' to see the full commands
···
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%.dtb: include/config/kernel.release scripts_dtc
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$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
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-
PHONY += dtbs dtbs_install dt_binding_check
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+
PHONY += dtbs dtbs_install dtbs_check
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dtbs dtbs_check: include/config/kernel.release scripts_dtc
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$(Q)$(MAKE) $(build)=$(dtstree)
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···
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scripts_dtc: scripts_basic
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$(Q)$(MAKE) $(build)=scripts/dtc
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+
PHONY += dt_binding_check
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dt_binding_check: scripts_dtc
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$(Q)$(MAKE) $(build)=Documentation/devicetree/bindings
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+3
-3
scripts/Makefile.lib
+3
-3
scripts/Makefile.lib
···
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DT_TMP_SCHEMA := $(objtree)/$(DT_BINDING_DIR)/processed-schema.yaml
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quiet_cmd_dtb_check = CHECK $@
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-
cmd_dtb_check = $(DT_CHECKER) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@ ;
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+
cmd_dtb_check = $(DT_CHECKER) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@
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-
define rule_dtc_dt_yaml
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+
define rule_dtc
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$(call cmd_and_fixdep,dtc,yaml)
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$(call cmd,dtb_check)
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endef
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$(obj)/%.dt.yaml: $(src)/%.dts $(DTC) $(DT_TMP_SCHEMA) FORCE
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-
$(call if_changed_rule,dtc_dt_yaml)
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+
$(call if_changed_rule,dtc)
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dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
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