1# ========================================================================== 2# Installing headers 3# 4# header-y files will be installed verbatim 5# unifdef-y are the files where unifdef will be run before installing files 6# objhdr-y are generated files that will be installed verbatim 7# 8# ========================================================================== 9 10UNIFDEF := unifdef -U__KERNEL__ 11 12# Eliminate the contents of (and inclusions of) compiler.h 13HDRSED := sed -e "s/ inline / __inline__ /g" \ 14 -e "s/[[:space:]]__user[[:space:]]\+/ /g" \ 15 -e "s/(__user[[:space:]]\+/ (/g" \ 16 -e "s/[[:space:]]__force[[:space:]]\+/ /g" \ 17 -e "s/(__force[[:space:]]\+/ (/g" \ 18 -e "s/[[:space:]]__iomem[[:space:]]\+/ /g" \ 19 -e "s/(__iomem[[:space:]]\+/ (/g" \ 20 -e "s/[[:space:]]__attribute_const__[[:space:]]\+/\ /g" \ 21 -e "s/[[:space:]]__attribute_const__$$//" \ 22 -e "/^\#include <linux\/compiler.h>/d" 23 24_dst := $(if $(dst),$(dst),$(obj)) 25 26.PHONY: __headersinst 27__headersinst: 28 29 30ifeq (,$(patsubst include/asm/%,,$(obj)/)) 31# For producing the generated stuff in include/asm for biarch builds, include 32# both sets of Kbuild files; we'll generate anything which is mentioned in 33# _either_ arch, and recurse into subdirectories which are mentioned in either 34# arch. Since some directories may exist in one but not the other, we must 35# use '-include'. 36GENASM := 1 37archasm := $(subst include/asm,asm-$(ARCH),$(obj)) 38altarchasm := $(subst include/asm,asm-$(ALTARCH),$(obj)) 39-include $(srctree)/include/$(archasm)/Kbuild 40-include $(srctree)/include/$(altarchasm)/Kbuild 41else 42include $(srctree)/$(obj)/Kbuild 43endif 44 45include scripts/Kbuild.include 46 47# If this is include/asm-$(ARCH) and there's no $(ALTARCH), then 48# override $(_dst) so that we install to include/asm directly. 49ifeq ($(obj)$(ALTARCH),include/asm-$(ARCH)) 50 _dst := include/asm 51endif 52 53header-y := $(sort $(header-y)) 54unifdef-y := $(sort $(unifdef-y)) 55subdir-y := $(patsubst %/,%,$(filter %/, $(header-y))) 56header-y := $(filter-out %/, $(header-y)) 57header-y := $(filter-out $(unifdef-y),$(header-y)) 58 59ifdef ALTARCH 60ifeq ($(obj),include/asm-$(ARCH)) 61altarch-y := altarch-dir 62endif 63endif 64 65# Make the definitions visible for recursive make invocations 66export ALTARCH 67export ARCHDEF 68export ALTARCHDEF 69 70quiet_cmd_o_hdr_install = INSTALL $(_dst)/$@ 71 cmd_o_hdr_install = cp $(objtree)/$(obj)/$@ $(INSTALL_HDR_PATH)/$(_dst) 72 73quiet_cmd_headers_install = INSTALL $(_dst)/$@ 74 cmd_headers_install = $(HDRSED) $(srctree)/$(obj)/$@ \ 75 > $(INSTALL_HDR_PATH)/$(_dst)/$@ 76 77quiet_cmd_unifdef = UNIFDEF $(_dst)/$@ 78 cmd_unifdef = $(UNIFDEF) $(srctree)/$(obj)/$@ | $(HDRSED) \ 79 > $(INSTALL_HDR_PATH)/$(_dst)/$@ || : 80 81quiet_cmd_check = CHECK $(_dst)/$@ 82 cmd_check = $(srctree)/scripts/hdrcheck.sh \ 83 $(INSTALL_HDR_PATH)/include \ 84 $(INSTALL_HDR_PATH)/$(_dst)/$@ 85 86quiet_cmd_mkdir = MKDIR $@ 87 cmd_mkdir = mkdir -p $(INSTALL_HDR_PATH)/$@ 88 89quiet_cmd_gen = GEN $(_dst)/$@ 90 cmd_gen = \ 91STUBDEF=__ASM_STUB_`echo $@ | tr a-z. A-Z_`; \ 92(echo "/* File autogenerated by 'make headers_install' */" ; \ 93echo "\#ifndef $$STUBDEF" ; \ 94echo "\#define $$STUBDEF" ; \ 95echo "\# if $(ARCHDEF)" ; \ 96if [ -r $(INSTALL_HDR_PATH)/include/$(archasm)/$@ ]; then \ 97 echo "\# include <$(archasm)/$@>" ; \ 98else \ 99 echo "\# error $(archasm)/$@ does not exist in" \ 100 "the $(ARCH) architecture" ; \ 101fi ; \ 102echo "\# elif $(ALTARCHDEF)" ; \ 103if [ -r $(INSTALL_HDR_PATH)/include/$(altarchasm)/$@ ]; then \ 104 echo "\# include <$(altarchasm)/$@>" ; \ 105else \ 106 echo "\# error $(altarchasm)/$@ does not exist in" \ 107 "the $(ALTARCH) architecture" ; \ 108fi ; \ 109echo "\# else" ; \ 110echo "\# warning This machine appears to be" \ 111 "neither $(ARCH) nor $(ALTARCH)." ; \ 112echo "\# endif" ; \ 113echo "\#endif /* $$STUBDEF */" ; \ 114) > $(INSTALL_HDR_PATH)/$(_dst)/$@ 115 116__headersinst: $(subdir-y) $(header-y) $(unifdef-y) $(altarch-y) $(objhdr-y) 117 118.PHONY: $(header-y) $(unifdef-y) $(subdir-y) 119 120ifdef HDRCHECK 121# Rules for checking headers 122$(objhdr-y) $(header-y) $(unifdef-y): 123 $(call cmd,check) 124else 125# Rules for installing headers 126 127$(objhdr-y) $(subdir-y) $(header-y) $(unifdef-y): $(_dst) 128 129.PHONY: $(_dst) 130$(_dst): 131 $(call cmd,mkdir) 132 133ifdef GENASM 134$(objhdr-y) $(header-y) $(unifdef-y): 135 $(call cmd,gen) 136 137else 138$(objhdr-y): 139 $(call cmd,o_hdr_install) 140 141$(header-y): 142 $(call cmd,headers_install) 143 144$(unifdef-y): 145 $(call cmd,unifdef) 146endif 147endif 148 149hdrinst := -rR -f $(srctree)/scripts/Makefile.headersinst obj 150 151.PHONY: altarch-dir 152# All the files in the normal arch dir must be created first, since we test 153# for their existence. 154altarch-dir: $(subdir-y) $(header-y) $(unifdef-y) $(objhdr-y) 155 $(Q)$(MAKE) $(hdrinst)=include/asm-$(ALTARCH) dst=include/asm-$(ALTARCH) 156 $(Q)$(MAKE) $(hdrinst)=include/asm dst=include/asm 157 158# Recursion 159$(subdir-y): 160 $(Q)$(MAKE) $(hdrinst)=$(obj)/$@ dst=$(_dst)/$@ rel=../$(rel) 161