diff options
author | Stephen Rothwell <sfr@canb.auug.org.au> | 2008-06-26 13:43:09 +1000 |
---|---|---|
committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2008-06-26 13:43:09 +1000 |
commit | be5851e9ae5702e566e98e89a85e777aadd5f2ee (patch) | |
tree | c292a37a9086a6e54001c21ca62fd9693f63f997 | |
parent | c9b3f15efe23195463a05795af2a0dba628e0baf (diff) | |
parent | 2440783e49f1a539507e18cb719fd7b3d7efb649 (diff) |
Merge commit 'kbuild/master'
-rw-r--r-- | Kbuild | 2 | ||||
-rw-r--r-- | Makefile | 134 | ||||
-rw-r--r-- | include/Kbuild | 4 | ||||
-rw-r--r-- | scripts/Makefile.headersinst | 230 | ||||
-rwxr-xr-x | scripts/hdrcheck.sh | 10 | ||||
-rwxr-xr-x | scripts/headers.sh | 41 | ||||
-rw-r--r-- | scripts/headers_check.pl | 56 | ||||
-rw-r--r-- | scripts/headers_install.pl | 45 |
8 files changed, 299 insertions, 223 deletions
@@ -43,7 +43,7 @@ $(obj)/$(bounds-file): kernel/bounds.s Kbuild # 2) Generate asm-offsets.h # -offsets-file := include/asm-$(SRCARCH)/asm-offsets.h +offsets-file := include/asm/asm-offsets.h always += $(offsets-file) targets += $(offsets-file) @@ -205,6 +205,9 @@ ifeq ($(ARCH),x86_64) SRCARCH := x86 endif +# Where to locate arch specific headers +hdr-arch := $(SRCARCH) + KCONFIG_CONFIG ?= .config # SHELL used by kbuild @@ -325,8 +328,10 @@ AFLAGS_KERNEL = # Use LINUXINCLUDE when you must reference the include/ directory. # Needed to be compatible with the O= option LINUXINCLUDE := -Iinclude \ - $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \ - -include include/linux/autoconf.h + $(if $(KBUILD_SRC), \ + -Iinclude2 -Iinclude3 -I$(srctree)/include) \ + -I$(srctree)/arch/$(hdr-arch)/include \ + -include include/linux/autoconf.h KBUILD_CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE) @@ -913,6 +918,7 @@ PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 # and if so do: # 1) Check that make has not been executed in the kernel src $(srctree) # 2) Create the include2 directory, used for the second asm symlink +# 3) Create the include3 directory, used for the third asm symlink prepare3: include/config/kernel.release ifneq ($(KBUILD_SRC),) @echo ' Using $(srctree) as source for kernel' @@ -922,7 +928,13 @@ ifneq ($(KBUILD_SRC),) /bin/false; \ fi; $(Q)if [ ! -d include2 ]; then mkdir -p include2; fi; - $(Q)ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm + $(Q)if [ -e $(srctree)/include/asm-$(SRCARCH)/system.h ]; then \ + ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm; \ + fi + $(Q)if [ ! -d include3 ]; then mkdir -p include3; fi; + $(Q)if [ -e $(srctree)/include/asm-$(SRCARCH)/system.h ]; then \ + ln -fsn ../include/asm-$(SRCARCH) include3/asm; \ + fi endif # prepare2 creates a makefile if using a separate output directory @@ -948,22 +960,42 @@ export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH) # The asm symlink changes when $(ARCH) changes. # Detect this and ask user to run make mrproper - -include/asm: FORCE - $(Q)set -e; asmlink=`readlink include/asm | cut -d '-' -f 2`; \ - if [ -L include/asm ]; then \ - if [ "$$asmlink" != "$(SRCARCH)" ]; then \ +define check-symlink + set -e; asmlink=`readlink include/asm | cut -d '-' -f 2`; \ + if [ -L include/asm ]; then \ + if [ "$$asmlink" != "$(SRCARCH)" ]; then \ echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \ echo " set ARCH or save .config and run 'make mrproper' to fix it"; \ - exit 1; \ - fi; \ - else \ - echo ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \ - if [ ! -d include ]; then \ - mkdir -p include; \ - fi; \ - ln -fsn asm-$(SRCARCH) $@; \ + exit 1; \ + fi; \ + fi +endef + +# For make O=... builds we create a directory when we create +# asm-offsets so no need to try to create a symlink then +ifneq ($(KBUILD_SRC),) +define create-symlink + if [ -L include/asm ]; then \ + rm include/asm; \ + fi +endef +else +define create-symlink + if [ ! -L include/asm ]; then \ + if [ -e $(srctree)/include/asm-$(SRCARCH)/system.h ]; then \ + echo ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \ + if [ ! -d include ]; then \ + mkdir -p include; \ + fi; \ + ln -fsn asm-$(SRCARCH) $@; \ + fi \ fi +endef +endif + +include/asm: FORCE + $(Q)$(check-symlink) + $(Q)$(create-symlink) # Generate some files # --------------------------------------------------------------------------- @@ -1000,36 +1032,43 @@ depend dep: # --------------------------------------------------------------------------- # Kernel headers -INSTALL_HDR_PATH=$(objtree)/usr -export INSTALL_HDR_PATH -HDRFILTER=generic i386 x86_64 -HDRARCHES=$(filter-out $(HDRFILTER),$(patsubst $(srctree)/include/asm-%/Kbuild,%,$(wildcard $(srctree)/include/asm-*/Kbuild))) +#Default location for installed headers +export INSTALL_HDR_PATH = $(objtree)/usr -PHONY += headers_install_all -headers_install_all: include/linux/version.h scripts_basic FORCE +hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj +# Find out where the Kbuild file is located to support +# arch/$(ARCH)/include/asm +hdr-dir = $(strip \ + $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild), \ + arch/$(hdr-arch)/include/asm, include/asm-$(hdr-arch))) + +# If we do an all arch process set dst to asm-$(hdr-arch) +hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) + +PHONY += __headers +__headers: include/linux/version.h scripts_basic FORCE $(Q)$(MAKE) $(build)=scripts scripts/unifdef - $(Q)for arch in $(HDRARCHES); do \ - $(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch ;\ - done + +PHONY += headers_install_all +headers_install_all: + $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install PHONY += headers_install -headers_install: include/linux/version.h scripts_basic FORCE - @if [ ! -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \ - echo '*** Error: Headers not exportable for this architecture ($(SRCARCH))'; \ - exit 1 ; fi - $(Q)$(MAKE) $(build)=scripts scripts/unifdef - $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst ARCH=$(SRCARCH) obj=include +headers_install: __headers + $(if $(wildcard $(srctree)/$(hdr-dir)/Kbuild),, \ + $(error Headers not exportable for the $(SRCARCH) architecture)) + $(Q)$(MAKE) $(hdr-inst)=include + $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) PHONY += headers_check_all headers_check_all: headers_install_all - $(Q)for arch in $(HDRARCHES); do \ - $(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch HDRCHECK=1 ;\ - done + $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check PHONY += headers_check headers_check: headers_install - $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst ARCH=$(SRCARCH) obj=include HDRCHECK=1 + $(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1 + $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) HDRCHECK=1 # --------------------------------------------------------------------------- # Modules @@ -1114,8 +1153,8 @@ CLEAN_FILES += vmlinux System.map \ .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map # Directories & files removed with 'make mrproper' -MRPROPER_DIRS += include/config include2 usr/include -MRPROPER_FILES += .config .config.old include/asm .version .old_version \ +MRPROPER_DIRS += include/config include2 usr/include include/asm +MRPROPER_FILES += .config .config.old .version .old_version \ include/linux/autoconf.h include/linux/version.h \ include/linux/utsrelease.h \ include/linux/bounds.h include/asm*/asm-offsets.h \ @@ -1137,7 +1176,8 @@ clean: archclean $(clean-dirs) @find . $(RCS_FIND_IGNORE) \ \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ - -o -name '*.symtypes' -o -name 'modules.order' \) \ + -o -name '*.symtypes' -o -name 'modules.order' \ + -o -name '*.o.*' \) \ -type f -print | xargs rm -f # mrproper - Delete all generated files, including .config @@ -1209,21 +1249,17 @@ help: @echo ' cscope - Generate cscope index' @echo ' kernelrelease - Output the release version string' @echo ' kernelversion - Output the version stored in Makefile' - @if [ -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \ - echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ + @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ echo ' (default: $(INSTALL_HDR_PATH))'; \ - fi - @echo '' + echo '' @echo 'Static analysers' @echo ' checkstack - Generate a list of stack hogs' @echo ' namespacecheck - Name space analysis on compiled kernel' @echo ' versioncheck - Sanity check on version.h usage' @echo ' includecheck - Check for duplicate included header files' @echo ' export_report - List the usages of all exported symbols' - @if [ -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \ - echo ' headers_check - Sanity check on exported headers'; \ - fi - @echo '' + @echo ' headers_check - Sanity check on exported headers'; \ + echo '' @echo 'Kernel packaging:' @$(MAKE) $(build)=$(package-dir) help @echo '' @@ -1396,7 +1432,11 @@ define find-sources \( -name config -o -name 'asm-*' \) -prune \ -o -name $1 -print; \ for arch in $(ALLINCLUDE_ARCHS) ; do \ - find $(__srctree)include/asm-$${arch} $(RCS_FIND_IGNORE) \ + test -e $(__srctree)include/asm-$${arch} && \ + find $(__srctree)include/asm-$${arch} $(RCS_FIND_IGNORE) \ + -name $1 -print; \ + test -e $(__srctree)arch/$${arch}/include/asm && \ + find $(__srctree)arch/$${arch}/include/asm $(RCS_FIND_IGNORE) \ -name $1 -print; \ done ; \ find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \ diff --git a/include/Kbuild b/include/Kbuild index b52288774345..6ae595cda668 100644 --- a/include/Kbuild +++ b/include/Kbuild @@ -1,8 +1,8 @@ +# Top-level Makefile calls into asm-$(ARCH) + header-y += asm-generic/ header-y += linux/ header-y += sound/ header-y += mtd/ header-y += rdma/ header-y += video/ - -header-y += asm-$(ARCH)/ diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst index 53dae3eb3d1f..612dc13ddd85 100644 --- a/scripts/Makefile.headersinst +++ b/scripts/Makefile.headersinst @@ -1,194 +1,98 @@ # ========================================================================== # Installing headers # -# header-y files will be installed verbatim -# unifdef-y are the files where unifdef will be run before installing files -# objhdr-y are generated files that will be installed verbatim +# header-y - list files to be installed. They are preprocessed +# to remove __KERNEL__ section of the file +# unifdef-y - Same as header-y. Obsolete +# objhdr-y - Same as header-y but for generated files # # ========================================================================== -UNIFDEF := scripts/unifdef -U__KERNEL__ - -# Eliminate the contents of (and inclusions of) compiler.h -HDRSED := sed -e "s/ inline / __inline__ /g" \ - -e "s/[[:space:]]__user[[:space:]]\{1,\}/ /g" \ - -e "s/(__user[[:space:]]\{1,\}/ (/g" \ - -e "s/[[:space:]]__force[[:space:]]\{1,\}/ /g" \ - -e "s/(__force[[:space:]]\{1,\}/ (/g" \ - -e "s/[[:space:]]__iomem[[:space:]]\{1,\}/ /g" \ - -e "s/(__iomem[[:space:]]\{1,\}/ (/g" \ - -e "s/[[:space:]]__attribute_const__[[:space:]]\{1,\}/\ /g" \ - -e "s/[[:space:]]__attribute_const__$$//" \ - -e "/^\#include <linux\/compiler.h>/d" - +# called may set destination dir (when installing to asm/) _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 +kbuild-file := $(srctree)/$(obj)/Kbuild +include $(kbuild-file) -include $(KBUILDFILES) +include scripts/Kbuild.include -include scripts/Kbuild.include +install := $(INSTALL_HDR_PATH)/$(_dst) -# 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)) +subdirs := $(patsubst %/,%,$(filter %/, $(header-y))) +header-y := $(filter-out %/, $(header-y)) -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)) +# files used to track state of install/check +install-file := $(install)/.install +check-file := $(install)/.check -# stamp files for header checks -check-y := $(patsubst %,.check.%,$(header-y) $(unifdef-y) $(objhdr-y)) +# all headers files for this dir +all-files := $(header-y) $(objhdr-y) +input-files := $(addprefix $(srctree)/$(obj)/,$(header-y)) \ + $(addprefix $(objtree)/$(obj)/,$(objhdr-y)) +output-files := $(addprefix $(install)/, $(all-files)) # 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)) +oldheaders := $(patsubst $(install)/%,%,$(wildcard $(install)/*.h)) +unwanted := $(filter-out $(all-files),$(oldheaders)) -oldcheckstamps := $(patsubst $(INSTALL_HDR_PATH)/$(_dst)/%,%,$(wildcard $(INSTALL_HDR_PATH)/$(_dst)/.check.*.h)) -unwanted += $(filter-out $(check-y),$(oldcheckstamps)) +# Prefix unwanted with full paths to $(INSTALL_HDR_PATH) +unwanted-file := $(addprefix $(install)/, $(unwanted)) -# 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)) +printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@)) +quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\ + file$(if $(word 2, $(all-files)),s)) + cmd_install = \ + $(PERL) $< $(srctree)/$(obj) $(install) $(SRCARCH) $(header-y); \ + $(PERL) $< $(objtree)/$(obj) $(install) $(SRCARCH) $(objhdr-y); \ + touch $@ -ifdef ALTARCH -ifeq ($(obj),include/asm-$(ARCH)) -altarch-y := altarch-dir -endif -endif +quiet_cmd_remove = REMOVE $(unwanted) + cmd_remove = rm -f $(unwanted-file) -# 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) +quiet_cmd_check = CHECK $(printdir) ($(words $(all-files)) files) + cmd_check = $(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH) \ + $(addprefix $(install)/, $(all-files)); \ + touch $@ -else -# Rules for installing headers -__headersinst: $(subdir-y) $(header-y) $(unifdef-y) $(altarch-y) $(objhdr-y) - @true +PHONY += __headersinst __headerscheck -$(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) +ifndef HDRCHECK +# Rules for installing headers +__headersinst: $(subdirs) $(install-file) + @: -ifdef GENASM -$(objhdr-y) $(header-y) $(unifdef-y): $(KBUILDFILES) - $(call cmd,gen) +targets += $(install-file) +$(install-file): scripts/headers_install.pl $(input-files) FORCE + $(if $(unwanted),$(call cmd,remove),) + $(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@))) + $(call if_changed,install) else -$(objhdr-y) : $(INSTALL_HDR_PATH)/$(_dst)/%.h: $(objtree)/$(obj)/%.h $(KBUILDFILES) - $(call cmd,o_hdr_install) +__headerscheck: $(subdirs) $(check-file) + @: -$(header-y) : $(INSTALL_HDR_PATH)/$(_dst)/%.h: $(srctree)/$(obj)/%.h $(KBUILDFILES) - $(call cmd,headers_install) +targets += $(check-file) +$(check-file): scripts/headers_check.pl $(output-files) FORCE + $(call if_changed,check) -$(unifdef-y) : $(INSTALL_HDR_PATH)/$(_dst)/%.h: $(srctree)/$(obj)/%.h $(KBUILDFILES) - $(call cmd,unifdef) -endif endif -hdrinst := -rR -f $(srctree)/scripts/Makefile.headersinst obj +# Recursion +hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj +.PHONY: $(subdirs) +$(subdirs): + $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@ -.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) +targets := $(wildcard $(sort $(targets))) +cmd_files := $(wildcard \ + $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) -# Recursion -.PHONY: $(subdir-y) -$(subdir-y): - $(Q)$(MAKE) $(hdrinst)=$(obj)/$@ dst=$(_dst)/$@ rel=../$(rel) +ifneq ($(cmd_files),) + include $(cmd_files) +endif + +.PHONY: $(PHONY) +PHONY += FORCE +FORCE: ; diff --git a/scripts/hdrcheck.sh b/scripts/hdrcheck.sh deleted file mode 100755 index 31598584f871..000000000000 --- a/scripts/hdrcheck.sh +++ /dev/null @@ -1,10 +0,0 @@ -#!/bin/sh - -for FILE in `grep '^[ \t]*#[ \t]*include[ \t]*<' $2 | cut -f2 -d\< | cut -f1 -d\> | egrep ^linux\|^asm` ; do - if [ ! -r $1/$FILE ]; then - echo $2 requires $FILE, which does not exist in exported headers - exit 1 - fi -done -# FIXME: List dependencies into $3 -touch $3 diff --git a/scripts/headers.sh b/scripts/headers.sh new file mode 100755 index 000000000000..d33426f866db --- /dev/null +++ b/scripts/headers.sh @@ -0,0 +1,41 @@ +#!/bin/sh +# Run headers_$1 command for all suitable architectures + +# Stop on error +set -e + +do_command() +{ + if [ -f ${srctree}/arch/$2/include/asm/Kbuild ]; then + make ARCH=$2 KBUILD_HEADERS=$1 headers_$1 + elif [ -f ${srctree}/include/asm-$2/Kbuild ]; then + make ARCH=$2 KBUILD_HEADERS=$1 headers_$1 + else + printf "Ignoring arch: %s\n" ${arch} + fi +} + +# Do not try this architecture +drop="generic um ppc sparc64 cris" + +archs=$(ls ${srctree}/arch) + +for arch in ${archs}; do + case ${arch} in + um) # no userspace export + ;; + ppc) # headers exported by powerpc + ;; + sparc64) # headers exported by sparc + ;; + cris) # headers export are known broken + ;; + *) + if [ -d ${srctree}/arch/${arch} ]; then + do_command $1 ${arch} + fi + ;; + esac +done + + diff --git a/scripts/headers_check.pl b/scripts/headers_check.pl new file mode 100644 index 000000000000..15d53a6b1a1f --- /dev/null +++ b/scripts/headers_check.pl @@ -0,0 +1,56 @@ +#!/usr/bin/perl +# +# headers_check.pl execute a number of trivial consistency checks +# +# Usage: headers_check.pl dir [files...] +# dir: dir to look for included files +# arch: architecture +# files: list of files to check +# +# The script reads the supplied files line by line and: +# +# 1) for each include statement it checks if the +# included file actually exists. +# Only include files located in asm* and linux* are checked. +# The rest are assumed to be system include files. +# +# 2) TODO: check for leaked CONFIG_ symbols + +use strict; +use warnings; + +my ($dir, $arch, @files) = @ARGV; + +my $ret = 0; +my $line; +my $lineno = 0; +my $filename; + +foreach my $file (@files) { + $filename = $file; + open(my $fh, '<', "$filename") or die "$filename: $!\n"; + $lineno = 0; + while ($line = <$fh>) { + $lineno++; + check_include(); + } + close $fh; +} +exit $ret; + +sub check_include +{ + if ($line =~ m/^\s*#\s*include\s+<((asm|linux).*)>/) { + my $inc = $1; + my $found; + $found = stat($dir . "/" . $inc); + if (!$found) { + $inc =~ s#asm/#asm-$arch/#; + $found = stat($dir . "/" . $inc); + } + if (!$found) { + printf STDERR "$filename:$lineno: included file '$inc' is not exported\n"; + $ret = 1; + } + } +} diff --git a/scripts/headers_install.pl b/scripts/headers_install.pl new file mode 100644 index 000000000000..68591cd08731 --- /dev/null +++ b/scripts/headers_install.pl @@ -0,0 +1,45 @@ +#!/usr/bin/perl +# +# headers_install prepare the listed header files for use in +# user space and copy the files to their destination. +# +# Usage: headers_install.pl readdir installdir arch [files...] +# readdir: dir to open files +# installdir: dir to install the files +# arch: current architecture +# arch is used to force a reinstallation when the arch +# changes because kbuild then detect a command line change. +# files: list of files to check +# +# Step in preparation for users space: +# 1) Drop all use of compiler.h definitions +# 2) Drop include of compiler.h +# 3) Drop all sections defined out by __KERNEL__ (using unifdef) + +use strict; +use warnings; + +my ($readdir, $installdir, $arch, @files) = @ARGV; + +my $unifdef = "scripts/unifdef -U__KERNEL__"; + +foreach my $file (@files) { + my $tmpfile = "$installdir/$file.tmp"; + open(my $infile, '<', "$readdir/$file") + or die "$readdir/$file: $!\n"; + open(my $outfile, '>', "$tmpfile") or die "$tmpfile: $!\n"; + while (my $line = <$infile>) { + $line =~ s/([\s(])__user\s/$1/g; + $line =~ s/([\s(])__force\s/$1/g; + $line =~ s/([\s(])__iomem\s/$1/g; + $line =~ s/\s__attribute_const__\s/ /g; + $line =~ s/\s__attribute_const__$//g; + $line =~ s/^#include <linux\/compiler.h>//; + printf $outfile "%s", $line; + } + close $outfile; + close $infile; + system $unifdef . " $tmpfile > $installdir/$file"; + unlink $tmpfile; +} +exit 0; |