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75 lines
3.6 KiB
Makefile
75 lines
3.6 KiB
Makefile
########################################################################### ###
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#@File
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#@Title Targets for printing config option help
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#@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved
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#@License Dual MIT/GPLv2
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#
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# The contents of this file are subject to the MIT license as set out below.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# Alternatively, the contents of this file may be used under the terms of
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# the GNU General Public License Version 2 ("GPL") in which case the provisions
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# of GPL are applicable instead of those above.
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#
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# If you wish to allow use of your version of this file only under the terms of
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# GPL, and not to allow others to use your version of this file under the terms
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# of the MIT license, indicate your decision by deleting the provisions above
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# and replace them with the notice and other provisions required by GPL as set
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# out in the file called "GPL-COPYING" included in this distribution. If you do
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# not delete the provisions above, a recipient may use your version of this file
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# under the terms of either the MIT license or GPL.
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#
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# This License is also included in this distribution in the file called
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# "MIT-COPYING".
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#
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# EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
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# PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
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# BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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# PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
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# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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### ###########################################################################
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define newline
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endef
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empty :=
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define abbrev-option-value
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$(if $(word 6,$(1)),$(wordlist 1,5,$(1))...,$(1))
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endef
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define print-option-help
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# Print the option name and value
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$(info $(1) ($(if $($(1)),$(call abbrev-option-value,$($(1))),<unset>), default $(if $(INTERNAL_CONFIG_DEFAULT_FOR_$(1)),$(call abbrev-option-value,$(INTERNAL_CONFIG_DEFAULT_FOR_$(1))),<unset>))$(if $(INTERNAL_DESCRIPTION_FOR_$(1)),:,))
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# Ensure the config help text ends with a newline
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$(and $(INTERNAL_DESCRIPTION_FOR_$(1)),$(if $(filter %_,$(word $(words $(INTERNAL_DESCRIPTION_FOR_$(1))),$(INTERNAL_DESCRIPTION_FOR_$(1)))),,$(eval INTERNAL_DESCRIPTION_FOR_$(1) := $(INTERNAL_DESCRIPTION_FOR_$(1))_ )))
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# Print the config help text
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$(info $(empty) $(subst _ ,$(newline) ,$(INTERNAL_DESCRIPTION_FOR_$(1))))
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endef
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.PHONY: confighelp allconfighelp
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# Show only the config options that have help text
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confighelp:
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@: $(foreach _o,$(sort $(ALL_TUNABLE_OPTIONS)),$(if $(INTERNAL_DESCRIPTION_FOR_$(_o)),$(call print-option-help,$(_o)),))
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# Show all the config options
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allconfighelp:
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@: $(foreach _o,$(sort $(ALL_TUNABLE_OPTIONS)),$(call print-option-help,$(_o)))
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ifneq ($(filter confighelp-%,$(MAKECMDGOALS)),)
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confighelp-%:
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@: $(if $(filter $*,$(ALL_TUNABLE_OPTIONS)),$(call print-option-help,$*),$(info $* is not a tunable config option))
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endif
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