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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 <linux\/compiler.h>/d"
_dst := $(if $(dst),$(dst),$(obj))
kbuild-file := $(srctree)/$(obj)/Kbuild
include $(kbuild-file)
include scripts/Kbuild.include
install := $(INSTALL_HDR_PATH)/$(_dst)
header-y := $(sort $(header-y) $(unifdef-y))
subdir-y := $(patsubst %/,%,$(filter %/, $(header-y)))
header-y := $(filter-out %/, $(header-y))
# stamp files for header checks
check-y := $(patsubst %,.check.%,$(header-y) $(objhdr-y))
# Work out what needs to be removed
oldheaders := $(patsubst $(install)/%,%,$(wildcard $(install)/*.h))
unwanted := $(filter-out $(header-y) $(objhdr-y),$(oldheaders))
oldcheckstamps := $(patsubst $(install)/%,%,$(wildcard $(install)/.check.*.h))
unwanted += $(filter-out $(check-y),$(oldcheckstamps))
# Prefix them all with full paths to $(INSTALL_HDR_PATH)
header-y := $(patsubst %,$(install)/%,$(header-y))
objhdr-y := $(patsubst %,$(install)/%,$(objhdr-y))
check-y := $(patsubst %,$(install)/%,$(check-y))
quiet_cmd_o_hdr_install = INSTALL $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
cmd_o_hdr_install = cp $(patsubst $(install)/%,$(objtree)/$(obj)/%,$@) \
$(install)
quiet_cmd_unifdef = UNIFDEF $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
cmd_unifdef = $(UNIFDEF) $(patsubst $(install)/%,$(srctree)/$(obj)/%,$@)\
| $(HDRSED) > $@ || :
quiet_cmd_check = CHECK $(patsubst $(install)/.check.%,$(_dst)/%,$@)
cmd_check = $(CONFIG_SHELL) $(srctree)/scripts/hdrcheck.sh \
$(INSTALL_HDR_PATH)/include $(subst /.check.,/,$@) $@
quiet_cmd_remove = REMOVE $(_dst)/$@
cmd_remove = rm -f $(install)/$@
quiet_cmd_mkdir = MKDIR $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
cmd_mkdir = mkdir -p $@
.PHONY: __headersinst __headerscheck
ifdef HDRCHECK
__headerscheck: $(subdir-y) $(check-y)
@true
$(check-y) : $(install)/.check.%.h : $(install)/%.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) $(objhdr-y)
@true
$(objhdr-y) $(subdir-y) $(header-y): | $(install) $(unwanted)
$(install):
$(call cmd,mkdir)
# Rules for removing unwanted header files
.PHONY: $(unwanted)
$(unwanted):
$(call cmd,remove)
# Install generated files
$(objhdr-y): $(install)/%.h: $(objtree)/$(obj)/%.h $(kbuild-file)
$(call cmd,o_hdr_install)
# Unifdef header files and install them
$(header-y): $(install)/%.h: $(srctree)/$(obj)/%.h $(kbuild-file)
$(call cmd,unifdef)
endif
hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
# Recursion
.PHONY: $(subdir-y)
$(subdir-y):
$(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@
|
