# ========================================================================== # 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)) 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)