dd5e620ac8
Until now, our UPPERCASE function was implemented purely in make for performance reasons, but our LOWERCASE function was implemented by calling "tr", which was reasonable due to the fact that LOWERCASE was rarely used, but future changes might make a more heavy usage of the LOWERCASE macro. We want this LOWERCASE function to turn a "_" into a "-" and not a ".", so we slightly adjust the existing FROM and TO lists to make this possible. This doesn't change the behavior of the UPPERCASE macro because both "-" and "." are converted into "_" by this function. This change takes advantage of suggestions made by Arnout Vandecappelle, who said they further improve the performance of UPPERCASE and LOWERCASE by 30%/40%. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
128 lines
4.2 KiB
Makefile
128 lines
4.2 KiB
Makefile
################################################################################
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#
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# This file contains various utility functions used by the package
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# infrastructure, or by the packages themselves.
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#
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################################################################################
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# UPPERCASE Macro -- transform its argument to uppercase and replace dots and
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# hyphens to underscores
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# Heavily inspired by the up macro from gmsl (http://gmsl.sf.net)
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# This is approx 5 times faster than forking a shell and tr, and
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# as this macro is used a lot it matters
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# This works by creating translation character pairs (E.G. a:A b:B)
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# and then looping though all of them running $(subst from,to,text)
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[FROM] := a b c d e f g h i j k l m n o p q r s t u v w x y z - .
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[TO] := A B C D E F G H I J K L M N O P Q R S T U V W X Y Z _ _
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define caseconvert-helper
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$(1) = $$(strip \
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$$(eval __tmp := $$(1))\
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$(foreach c, $(2),\
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$$(eval __tmp := $$(subst $(word 1,$(subst :, ,$c)),$(word 2,$(subst :, ,$c)),$$(__tmp))))\
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$$(__tmp))
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endef
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$(eval $(call caseconvert-helper,UPPERCASE,$(join $(addsuffix :,$([FROM])),$([TO]))))
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$(eval $(call caseconvert-helper,LOWERCASE,$(join $(addsuffix :,$([TO])),$([FROM]))))
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#
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# Manipulation of .config files based on the Kconfig
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# infrastructure. Used by the Busybox package, the Linux kernel
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# package, and more.
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#
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define KCONFIG_ENABLE_OPT
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$(SED) "/\\<$(1)\\>/d" $(2)
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echo "$(1)=y" >> $(2)
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endef
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define KCONFIG_SET_OPT
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$(SED) "/\\<$(1)\\>/d" $(3)
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echo "$(1)=$(2)" >> $(3)
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endef
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define KCONFIG_DISABLE_OPT
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$(SED) "/\\<$(1)\\>/d" $(2)
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echo "# $(1) is not set" >> $(2)
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endef
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# Helper functions to determine the name of a package and its
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# directory from its makefile directory, using the $(MAKEFILE_LIST)
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# variable provided by make. This is used by the *TARGETS macros to
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# automagically find where the package is located.
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pkgdir = $(dir $(lastword $(MAKEFILE_LIST)))
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pkgname = $(lastword $(subst /, ,$(pkgdir)))
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# Define extractors for different archive suffixes
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INFLATE.bz2 = $(BZCAT)
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INFLATE.gz = $(ZCAT)
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INFLATE.tbz = $(BZCAT)
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INFLATE.tbz2 = $(BZCAT)
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INFLATE.tgz = $(ZCAT)
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INFLATE.xz = $(XZCAT)
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INFLATE.tar = cat
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# suitable-extractor(filename): returns extractor based on suffix
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suitable-extractor = $(INFLATE$(suffix $(1)))
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# MESSAGE Macro -- display a message in bold type
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MESSAGE = echo "$(TERM_BOLD)>>> $($(PKG)_NAME) $($(PKG)_VERSION) $(1)$(TERM_RESET)"
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TERM_BOLD := $(shell tput smso)
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TERM_RESET := $(shell tput rmso)
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# Utility functions for 'find'
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# findfileclauses(filelist) => -name 'X' -o -name 'Y'
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findfileclauses = $(call notfirstword,$(patsubst %,-o -name '%',$(1)))
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# finddirclauses(base, dirlist) => -path 'base/dirX' -o -path 'base/dirY'
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finddirclauses = $(call notfirstword,$(patsubst %,-o -path '$(1)/%',$(2)))
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# Miscellaneous utility functions
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# notfirstword(wordlist): returns all but the first word in wordlist
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notfirstword = $(wordlist 2,$(words $(1)),$(1))
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# Needed for the foreach loops to loop over the list of hooks, so that
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# each hook call is properly separated by a newline.
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define sep
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endef
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#
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# legal-info helper functions
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#
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LEGAL_INFO_SEPARATOR="::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::"
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define legal-warning # text
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echo "WARNING: $(1)" >>$(LEGAL_WARNINGS)
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endef
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define legal-warning-pkg # pkg, text
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echo "WARNING: $(1): $(2)" >>$(LEGAL_WARNINGS)
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endef
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define legal-warning-pkg-savednothing # pkg, {local|override}
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$(call legal-warning-pkg,$(1),sources and license files not saved ($(2) packages not handled))
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endef
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define legal-manifest # pkg, version, license, license-files, source, {HOST|TARGET}
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echo '"$(1)","$(2)","$(3)","$(4)","$(5)"' >>$(LEGAL_MANIFEST_CSV_$(6))
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endef
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define legal-license-header # pkg, license-file, {HOST|TARGET}
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echo -e "$(LEGAL_INFO_SEPARATOR)\n\t$(1):" \
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"$(2)\n$(LEGAL_INFO_SEPARATOR)\n\n" >>$(LEGAL_LICENSES_TXT_$(3))
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endef
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define legal-license-nofiles # pkg, {HOST|TARGET}
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$(call legal-license-header,$(1),unknown license file(s),$(2))
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endef
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define legal-license-file # pkg, filename, file-fullpath, {HOST|TARGET}
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$(call legal-license-header,$(1),$(2) file,$(4)) && \
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cat $(3) >>$(LEGAL_LICENSES_TXT_$(4)) && \
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echo >>$(LEGAL_LICENSES_TXT_$(4)) && \
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mkdir -p $(LICENSE_FILES_DIR_$(4))/$(1)/$(dir $(2)) && \
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cp $(3) $(LICENSE_FILES_DIR_$(4))/$(1)/$(2)
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endef
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