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# ==========================================================================

# 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.h

HDRSED  := sed  -e "s/ inline / __inline__ /g" \

                -e "s/[[:space:]]__user[[:space:]]\{1,\}/ /g" \

                -e "s/(__user[[:space:]]\{1,\}/ (/g" \

                -e "s/[[:space:]]__force[[:space:]]\{1,\}/ /g" \

                -e "s/(__force[[:space:]]\{1,\}/ (/g" \

                -e "s/[[:space:]]__iomem[[:space:]]\{1,\}/ /g" \

                -e "s/(__iomem[[:space:]]\{1,\}/ (/g" \

                -e "s/[[:space:]]__attribute_const__[[:space:]]\{1,\}/\ /g" \

                -e "s/[[:space:]]__attribute_const__$$//" \

                -e "/^\#include /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 := 1

archasm    := $(subst include/asm,asm-$(ARCH),$(obj))

altarchasm := $(subst include/asm,asm-$(ALTARCH),$(obj))

KBUILDFILES := $(wildcard $(srctree)/include/$(archasm)/Kbuild $(srctree)/include/$(altarchasm)/Kbuild)

else

KBUILDFILES := $(srctree)/$(obj)/Kbuild

endif

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/asm

endif

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 checks

check-y         := $(patsubst %,.check.%,$(header-y) $(unifdef-y) $(objhdr-y))

# Work out what needs to be removed

oldheaders      := $(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 ALTARCH

ifeq ($(obj),include/asm-$(ARCH))

altarch-y       := altarch-dir

endif

endif

# Make the definitions visible for recursive make invocations

export ALTARCH

export ARCHDEF

export 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)

endif

endif

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)