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