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@@ -1,194 +1,98 @@
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# ==========================================================================
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# Installing headers
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#
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-# header-y files will be installed verbatim
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-# unifdef-y are the files where unifdef will be run before installing files
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-# objhdr-y are generated files that will be installed verbatim
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+# header-y - list files to be installed. They are preprocessed
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+# to remove __KERNEL__ section of the file
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+# unifdef-y - Same as header-y. Obsolete
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+# objhdr-y - Same as header-y but for generated files
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#
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# ==========================================================================
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-UNIFDEF := scripts/unifdef -U__KERNEL__
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-
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-# Eliminate the contents of (and inclusions of) compiler.h
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-HDRSED := sed -e "s/ inline / __inline__ /g" \
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- -e "s/[[:space:]]__user[[:space:]]\{1,\}/ /g" \
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- -e "s/(__user[[:space:]]\{1,\}/ (/g" \
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- -e "s/[[:space:]]__force[[:space:]]\{1,\}/ /g" \
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- -e "s/(__force[[:space:]]\{1,\}/ (/g" \
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- -e "s/[[:space:]]__iomem[[:space:]]\{1,\}/ /g" \
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- -e "s/(__iomem[[:space:]]\{1,\}/ (/g" \
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- -e "s/[[:space:]]__attribute_const__[[:space:]]\{1,\}/\ /g" \
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- -e "s/[[:space:]]__attribute_const__$$//" \
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- -e "/^\#include <linux\/compiler.h>/d"
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-
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+# called may set destination dir (when installing to asm/)
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_dst := $(if $(dst),$(dst),$(obj))
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-ifeq (,$(patsubst include/asm/%,,$(obj)/))
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-# For producing the generated stuff in include/asm for biarch builds, include
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-# both sets of Kbuild files; we'll generate anything which is mentioned in
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-# _either_ arch, and recurse into subdirectories which are mentioned in either
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-# arch. Since some directories may exist in one but not the other, we must
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-# use $(wildcard...).
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-GENASM := 1
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-archasm := $(subst include/asm,asm-$(ARCH),$(obj))
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-altarchasm := $(subst include/asm,asm-$(ALTARCH),$(obj))
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-KBUILDFILES := $(wildcard $(srctree)/include/$(archasm)/Kbuild $(srctree)/include/$(altarchasm)/Kbuild)
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-else
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-KBUILDFILES := $(srctree)/$(obj)/Kbuild
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-endif
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+kbuild-file := $(srctree)/$(obj)/Kbuild
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+include $(kbuild-file)
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-include $(KBUILDFILES)
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+include scripts/Kbuild.include
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-include scripts/Kbuild.include
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+install := $(INSTALL_HDR_PATH)/$(_dst)
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-# If this is include/asm-$(ARCH) and there's no $(ALTARCH), then
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-# override $(_dst) so that we install to include/asm directly.
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-# Unless $(BIASMDIR) is set, in which case we're probably doing
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-# a 'headers_install_all' build and we should keep the -$(ARCH)
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-# in the directory name.
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-ifeq ($(obj)$(ALTARCH),include/asm-$(ARCH)$(BIASMDIR))
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- _dst := include/asm
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-endif
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+header-y := $(sort $(header-y) $(unifdef-y))
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+subdirs := $(patsubst %/,%,$(filter %/, $(header-y)))
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+header-y := $(filter-out %/, $(header-y))
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-header-y := $(sort $(header-y))
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-unifdef-y := $(sort $(unifdef-y))
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-subdir-y := $(patsubst %/,%,$(filter %/, $(header-y)))
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-header-y := $(filter-out %/, $(header-y))
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-header-y := $(filter-out $(unifdef-y),$(header-y))
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+# files used to track state of install/check
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+install-file := $(install)/.install
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+check-file := $(install)/.check
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-# stamp files for header checks
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-check-y := $(patsubst %,.check.%,$(header-y) $(unifdef-y) $(objhdr-y))
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+# all headers files for this dir
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+all-files := $(header-y) $(objhdr-y)
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+input-files := $(addprefix $(srctree)/$(obj)/,$(header-y)) \
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+ $(addprefix $(objtree)/$(obj)/,$(objhdr-y))
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+output-files := $(addprefix $(install)/, $(all-files))
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# Work out what needs to be removed
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-oldheaders := $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,%,$(wildcard $(INSTALL_HDR_PATH)/$(_dst)/*.h))
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-unwanted := $(filter-out $(header-y) $(unifdef-y) $(objhdr-y),$(oldheaders))
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+oldheaders := $(patsubst $(install)/%,%,$(wildcard $(install)/*.h))
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+unwanted := $(filter-out $(all-files),$(oldheaders))
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-oldcheckstamps := $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,%,$(wildcard $(INSTALL_HDR_PATH)/$(_dst)/.check.*.h))
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-unwanted += $(filter-out $(check-y),$(oldcheckstamps))
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+# Prefix unwanted with full paths to $(INSTALL_HDR_PATH)
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+unwanted-file := $(addprefix $(install)/, $(unwanted))
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-# Prefix them all with full paths to $(INSTALL_HDR_PATH)
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-header-y := $(patsubst %,$(INSTALL_HDR_PATH)/$(_dst)/%,$(header-y))
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-unifdef-y := $(patsubst %,$(INSTALL_HDR_PATH)/$(_dst)/%,$(unifdef-y))
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-objhdr-y := $(patsubst %,$(INSTALL_HDR_PATH)/$(_dst)/%,$(objhdr-y))
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-check-y := $(patsubst %,$(INSTALL_HDR_PATH)/$(_dst)/%,$(check-y))
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+printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@))
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+quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
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+ file$(if $(word 2, $(all-files)),s))
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+ cmd_install = \
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+ $(PERL) $< $(srctree)/$(obj) $(install) $(SRCARCH) $(header-y); \
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+ $(PERL) $< $(objtree)/$(obj) $(install) $(SRCARCH) $(objhdr-y); \
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+ touch $@
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-ifdef ALTARCH
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-ifeq ($(obj),include/asm-$(ARCH))
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-altarch-y := altarch-dir
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-endif
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-endif
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+quiet_cmd_remove = REMOVE $(unwanted)
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+ cmd_remove = rm -f $(unwanted-file)
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-# Make the definitions visible for recursive make invocations
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-export ALTARCH
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-export ARCHDEF
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-export ALTARCHDEF
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-
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-quiet_cmd_o_hdr_install = INSTALL $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
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- cmd_o_hdr_install = cp $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,$(objtree)/$(obj)/%,$@) \
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- $(INSTALL_HDR_PATH)/$(_dst)
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-
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-quiet_cmd_headers_install = INSTALL $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
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- cmd_headers_install = $(HDRSED) $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,$(srctree)/$(obj)/%,$@) \
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- > $@
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-
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-quiet_cmd_unifdef = UNIFDEF $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
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- cmd_unifdef = $(UNIFDEF) $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,$(srctree)/$(obj)/%,$@) \
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- | $(HDRSED) > $@ || :
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-
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-quiet_cmd_check = CHECK $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/.check.%,$(_dst)/%,$@)
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- cmd_check = $(CONFIG_SHELL) $(srctree)/scripts/hdrcheck.sh \
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- $(INSTALL_HDR_PATH)/include $(subst /.check.,/,$@) $@
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-
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-quiet_cmd_remove = REMOVE $(_dst)/$@
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- cmd_remove = rm -f $(INSTALL_HDR_PATH)/$(_dst)/$@
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-
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-quiet_cmd_mkdir = MKDIR $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
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- cmd_mkdir = mkdir -p $@
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-
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-quiet_cmd_gen = GEN $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
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- cmd_gen = \
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-FNAME=$(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,%,$@); \
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-STUBDEF=__ASM_STUB_`echo $$FNAME | tr a-z.- A-Z__`; \
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-(echo "/* File autogenerated by 'make headers_install' */" ; \
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-echo "\#ifndef $$STUBDEF" ; \
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-echo "\#define $$STUBDEF" ; \
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-echo "\# if $(ARCHDEF)" ; \
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-if [ -r $(subst /$(_dst)/,/include/$(archasm)/,$@) ]; then \
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- echo "\# include <$(archasm)/$$FNAME>" ; \
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-else \
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- echo "\# error $(archasm)/$$FNAME does not exist in" \
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- "the $(ARCH) architecture" ; \
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-fi ; \
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-echo "\# elif $(ALTARCHDEF)" ; \
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-if [ -r $(subst /$(_dst)/,/include/$(altarchasm)/,$@) ]; then \
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- echo "\# include <$(altarchasm)/$$FNAME>" ; \
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-else \
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- echo "\# error $(altarchasm)/$$FNAME does not exist in" \
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- "the $(ALTARCH) architecture" ; \
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-fi ; \
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-echo "\# else" ; \
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-echo "\# warning This machine appears to be" \
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- "neither $(ARCH) nor $(ALTARCH)." ; \
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-echo "\# endif" ; \
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-echo "\#endif /* $$STUBDEF */" ; \
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-) > $@
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-
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-.PHONY: __headersinst __headerscheck
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-
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-ifdef HDRCHECK
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-__headerscheck: $(subdir-y) $(check-y)
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- @true
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-
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-$(check-y) : $(INSTALL_HDR_PATH)/$(_dst)/.check.%.h : $(INSTALL_HDR_PATH)/$(_dst)/%.h
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- $(call cmd,check)
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-
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-# Other dependencies for $(check-y)
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-include /dev/null $(wildcard $(check-y))
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-
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-# ... but leave $(check-y) as .PHONY for now until those deps are actually correct.
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-.PHONY: $(check-y)
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+quiet_cmd_check = CHECK $(printdir) ($(words $(all-files)) files)
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+ cmd_check = $(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH) \
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+ $(addprefix $(install)/, $(all-files)); \
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+ touch $@
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-else
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-# Rules for installing headers
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-__headersinst: $(subdir-y) $(header-y) $(unifdef-y) $(altarch-y) $(objhdr-y)
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- @true
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+PHONY += __headersinst __headerscheck
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-$(objhdr-y) $(subdir-y) $(header-y) $(unifdef-y): | $(INSTALL_HDR_PATH)/$(_dst) $(unwanted)
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-
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-$(INSTALL_HDR_PATH)/$(_dst):
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- $(call cmd,mkdir)
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-
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-.PHONY: $(unwanted)
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-$(unwanted):
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- $(call cmd,remove)
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+ifndef HDRCHECK
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+# Rules for installing headers
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+__headersinst: $(subdirs) $(install-file)
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+ @:
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-ifdef GENASM
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-$(objhdr-y) $(header-y) $(unifdef-y): $(KBUILDFILES)
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- $(call cmd,gen)
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+targets += $(install-file)
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+$(install-file): scripts/headers_install.pl $(input-files) FORCE
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+ $(if $(unwanted),$(call cmd,remove),)
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+ $(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@)))
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+ $(call if_changed,install)
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else
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-$(objhdr-y) : $(INSTALL_HDR_PATH)/$(_dst)/%.h: $(objtree)/$(obj)/%.h $(KBUILDFILES)
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- $(call cmd,o_hdr_install)
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+__headerscheck: $(subdirs) $(check-file)
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+ @:
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-$(header-y) : $(INSTALL_HDR_PATH)/$(_dst)/%.h: $(srctree)/$(obj)/%.h $(KBUILDFILES)
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- $(call cmd,headers_install)
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+targets += $(check-file)
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+$(check-file): scripts/headers_check.pl $(output-files) FORCE
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+ $(call if_changed,check)
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-$(unifdef-y) : $(INSTALL_HDR_PATH)/$(_dst)/%.h: $(srctree)/$(obj)/%.h $(KBUILDFILES)
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- $(call cmd,unifdef)
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-endif
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endif
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-hdrinst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
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+# Recursion
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+hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
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+.PHONY: $(subdirs)
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+$(subdirs):
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+ $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@
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-.PHONY: altarch-dir
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-# All the files in the normal arch dir must be created first, since we test
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-# for their existence.
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-altarch-dir: $(subdir-y) $(header-y) $(unifdef-y) $(objhdr-y)
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- $(Q)$(MAKE) $(hdrinst)=include/asm-$(ALTARCH) dst=include/asm-$(ALTARCH)
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- $(Q)$(MAKE) $(hdrinst)=include/asm dst=include/asm$(BIASMDIR)
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+targets := $(wildcard $(sort $(targets)))
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+cmd_files := $(wildcard \
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+ $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
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-# Recursion
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-.PHONY: $(subdir-y)
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-$(subdir-y):
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- $(Q)$(MAKE) $(hdrinst)=$(obj)/$@ dst=$(_dst)/$@ rel=../$(rel)
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+ifneq ($(cmd_files),)
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+ include $(cmd_files)
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+endif
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+
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+.PHONY: $(PHONY)
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+PHONY += FORCE
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+FORCE: ;
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