VERSION = 2
PATCHLEVEL = 5
SUBLEVEL = 19
EXTRAVERSION =-xfs
KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
ARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ -e s/arm.*/arm/ -e s/sa110/arm/)
KERNELPATH=kernel-$(shell echo $(KERNELRELEASE) | sed -e "s/-//g")
CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
else if [ -x /bin/bash ]; then echo /bin/bash; \
else echo sh; fi ; fi)
TOPDIR := $(CURDIR)
HPATH = $(TOPDIR)/include
FINDHPATH = $(HPATH)/asm $(HPATH)/linux $(HPATH)/scsi $(HPATH)/net
HOSTCC = gcc
HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
CROSS_COMPILE =
#
# Include the make variables (CC, etc...)
#
AS = $(CROSS_COMPILE)as
LD = $(CROSS_COMPILE)ld
CC = $(CROSS_COMPILE)gcc
CPP = $(CC) -E
AR = $(CROSS_COMPILE)ar
NM = $(CROSS_COMPILE)nm
STRIP = $(CROSS_COMPILE)strip
OBJCOPY = $(CROSS_COMPILE)objcopy
OBJDUMP = $(CROSS_COMPILE)objdump
MAKEFILES = $(TOPDIR)/.config
GENKSYMS = /sbin/genksyms
DEPMOD = /sbin/depmod
PERL = perl
MODFLAGS = -DMODULE
CFLAGS_MODULE = $(MODFLAGS)
AFLAGS_MODULE =
CFLAGS_KERNEL =
AFLAGS_KERNEL =
EXPORT_FLAGS =
export VERSION PATCHLEVEL SUBLEVEL EXTRAVERSION KERNELRELEASE ARCH \
CONFIG_SHELL TOPDIR HPATH HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \
CPP AR NM STRIP OBJCOPY OBJDUMP MAKE MAKEFILES GENKSYMS PERL
export CPPFLAGS EXPORT_FLAGS
export CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
export AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
# That's our default target when none is given on the command line
all: vmlinux
# This is neat little trick to allow people to
# use "make <target> quiet"
# instead of "make KBUILD_QUIET=1"
quiet: ;
ifneq ($(filter quiet,$(MAKECMDGOALS)),)
KBUILD_QUIET=1
endif
# If the user is running make -s (silent mode), suppress echoing of
# commands
ifneq ($(findstring s,$(MAKEFLAGS)),)
quiet=silent_
endif
# If the user wants quiet mode, echo short versions of the commands
# only and suppress the 'Entering/Leaving directory' messages
ifneq ($(KBUILD_QUIET),)
quiet=quiet_
MAKEFLAGS += --no-print-directory
endif
export quiet
#
# Read .config, if available
# FIXME: we should only read it when necessary, e.g. not when
# just doing make clean/mrproper etc
#
ifeq (.config,$(wildcard .config))
include .config
endif
#
# INSTALL_PATH specifies where to place the updated kernel and system map
# images. Uncomment if you want to place them anywhere other than root.
#
#export INSTALL_PATH=/boot
#
# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
# relocations required by build roots. This is not defined in the
# makefile but the arguement can be passed to make if needed.
#
MODLIB := $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
export MODLIB
#
# standard CFLAGS
#
CPPFLAGS := -D__KERNEL__ -I$(HPATH)
CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes -Wno-trigraphs -O2 \
-fomit-frame-pointer -fno-strict-aliasing -fno-common
AFLAGS := -D__ASSEMBLY__ $(CPPFLAGS)
ifdef CONFIG_MODULES
EXPORT_FLAGS := -DEXPORT_SYMTAB
endif
INIT =init/init.o
CORE_FILES =kernel/kernel.o mm/mm.o fs/fs.o ipc/ipc.o
NETWORKS =net/network.o
LIBS =$(TOPDIR)/lib/lib.a
SUBDIRS =init kernel lib drivers mm fs net ipc sound
DRIVERS-y = drivers/built-in.o
DRIVERS-$(CONFIG_SOUND) += sound/sound.o
DRIVERS := $(DRIVERS-y)
include arch/$(ARCH)/Makefile
export NETWORKS DRIVERS LIBS HEAD LDFLAGS LINKFLAGS MAKEBOOT ASFLAGS
# boot target
# ---------------------------------------------------------------------------
boot: vmlinux
@$(MAKE) -C arch/$(ARCH)/boot
# Build vmlinux
# ---------------------------------------------------------------------------
# This is a bit tricky: If we need to relink vmlinux, we want
# the version number incremented, which means recompile init/version.o
# and relink init/init.o. However, we cannot do this during the
# normal descending-into-subdirs phase, since at that time
# we cannot yet know if we will need to relink vmlinux.
# So we descend into init/ inside the rule for vmlinux again.
vmlinux-objs := $(HEAD) $(INIT) $(CORE_FILES) $(LIBS) $(DRIVERS) $(NETWORKS)
quiet_cmd_link_vmlinux = Linking $@
cmd_link_vmlinux = $(LD) $(LINKFLAGS) $(HEAD) $(INIT) \
--start-group \
$(CORE_FILES) \
$(LIBS) \
$(DRIVERS) \
$(NETWORKS) \
--end-group \
-o vmlinux
# set -e makes the rule exit immediately on error
define rule_link_vmlinux
set -e
echo Generating build number
. scripts/mkversion > .tmpversion
mv -f .tmpversion .version
$(MAKE) -C init
$(call cmd,cmd_link_vmlinux)
$(cmd_link_vmlinux)
echo 'cmd_$@ := $(cmd_link_vmlinux)' > $(@D)/.$(@F).cmd
$(NM) vmlinux | grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | sort > System.map
endef
vmlinux: $(vmlinux-objs) FORCE
$(call if_changed_rule,link_vmlinux)
# The actual objects are generated when descending,
# make sure no implicit rule kicks in
$(sort $(vmlinux-objs)): $(SUBDIRS) ;
# Handle descending into subdirectories listed in $(SUBDIRS)
.PHONY: $(SUBDIRS)
$(SUBDIRS): FORCE prepare
@$(MAKE) -C $@
# Things we need done before we even start the actual build
.PHONY: prepare
prepare: include/linux/version.h include/config/MARKER .hdepend
# Single targets
# ---------------------------------------------------------------------------
%.s: %.c FORCE
@$(MAKE) -C $(@D) $(@F)
%.i: %.c FORCE
@$(MAKE) -C $(@D) $(@F)
%.o: %.c FORCE
@$(MAKE) -C $(@D) $(@F)
%.lst: %.c FORCE
@$(MAKE) -C $(@D) $(@F)
%.s: %.S FORCE
@$(MAKE) -C $(@D) $(@F)
%.o: %.S FORCE
@$(MAKE) -C $(@D) $(@F)
# Configuration
# ---------------------------------------------------------------------------
.PHONY: oldconfig xconfig menuconfig config
oldconfig:
$(CONFIG_SHELL) scripts/Configure -d arch/$(ARCH)/config.in
xconfig:
@$(MAKE) -C scripts kconfig.tk
wish -f scripts/kconfig.tk
menuconfig:
@$(MAKE) -C scripts/lxdialog all
$(CONFIG_SHELL) scripts/Menuconfig arch/$(ARCH)/config.in
config:
$(CONFIG_SHELL) scripts/Configure arch/$(ARCH)/config.in
# split autoconf.h into include/linux/config/*
include/config/MARKER: scripts/split-include include/linux/autoconf.h
scripts/split-include include/linux/autoconf.h include/config
@touch include/config/MARKER
# if .config is newer than include/linux/autoconf.h, someone tinkered
# with it and forgot to run make oldconfig
include/linux/autoconf.h: .config
@echo '***'
@echo '*** You changed .config w/o running make *config?'
@echo '*** Please run "make oldconfig"'
@echo '***'
@exit 1
# if .config is newer than include/linux/autoconf.h, someone tinkered
# with it and forgot to run make oldconfig
.config:
@echo '***'
@echo '*** You have not yet configured your kernel!'
@echo '*** Please run "make xconfig/menuconfig/config/oldconfig"'
@echo '***'
@exit 1
# Things we need to do in preparation of the actual build
# ---------------------------------------------------------------------------
# if "make dep" has never been run, do it now.
.hdepend:
@$(MAKE) dep
# generate version.h
include/linux/version.h: ./Makefile
@echo Generating $@
@. scripts/mkversion_h $@ $(KERNELRELEASE) $(VERSION) $(PATCHLEVEL) $(SUBLEVEL)
# make asm->asm-$(ARCH) symlink
.PHONY: symlinks
symlinks:
@echo 'Making asm -> asm-$(ARCH) symlink'
@rm -f include/asm
@( cd include ; ln -sf asm-$(ARCH) asm )
@if [ ! -d include/linux/modules ]; then \
mkdir include/linux/modules; \
fi
# helpers built in scripts/
scripts/mkdep scripts/split-include : FORCE
@$(MAKE) -C scripts
# ---------------------------------------------------------------------------
# Generate dependencies
.PHONY: depend dep update-modverfile
quiet_cmd_depend = Making dependencies (include)
cmd_depend = scripts/mkdep -- `find $(FINDHPATH) -name SCCS -prune -o -follow -name \*.h ! -name modversions.h -print` > .hdepend
depend dep: scripts/mkdep archdep include/linux/version.h symlinks
@$(MAKE) $(patsubst %,_sfdep_%,$(SUBDIRS))
ifdef CONFIG_MODVERSIONS
@$(MAKE) update-modverfile
endif
$(call cmd,cmd_depend)
.PHONY: $(patsubst %,_sfdep_%,$(SUBDIRS))
$(patsubst %,_sfdep_%,$(SUBDIRS)): FORCE
@$(MAKE) -C $(patsubst _sfdep_%, %, $@) fastdep
# update modversions.h, but only if it would change
update-modverfile:
@(echo "#ifndef _LINUX_MODVERSIONS_H";\
echo "#define _LINUX_MODVERSIONS_H"; \
echo "#include <linux/modsetver.h>"; \
cd $(TOPDIR)/include/linux/modules; \
for f in *.ver; do \
if [ -f $$f ]; then echo "#include <linux/modules/$${f}>"; fi; \
done; \
echo "#endif"; \
) > $(TOPDIR)/include/linux/modversions.h.tmp
@if [ -r $(TOPDIR)/include/linux/modversions.h ] && cmp -s $(TOPDIR)/include/linux/modversions.h $(TOPDIR)/include/linux/modversions.h.tmp; then \
echo $(TOPDIR)/include/linux/modversions.h was not updated; \
rm -f $(TOPDIR)/include/linux/modversions.h.tmp; \
else \
echo $(TOPDIR)/include/linux/modversions.h was updated; \
mv -f $(TOPDIR)/include/linux/modversions.h.tmp $(TOPDIR)/include/linux/modversions.h; \
fi
# ---------------------------------------------------------------------------
# Modules
ifdef CONFIG_MODULES
# Build modules
ifdef CONFIG_MODVERSIONS
MODFLAGS += -DMODVERSIONS -include $(HPATH)/linux/modversions.h
endif
.PHONY: modules
modules: $(patsubst %, _mod_%, $(SUBDIRS))
.PHONY: $(patsubst %, _mod_%, $(SUBDIRS))
$(patsubst %, _mod_%, $(SUBDIRS)) : include/linux/version.h include/config/MARKER
@$(MAKE) -C $(patsubst _mod_%, %, $@) modules
# Install modules
.PHONY: modules_install
modules_install: _modinst_ $(patsubst %, _modinst_%, $(SUBDIRS)) _modinst_post
.PHONY: _modinst_
_modinst_:
@rm -rf $(MODLIB)/kernel
@rm -f $(MODLIB)/build
@mkdir -p $(MODLIB)/kernel
@ln -s $(TOPDIR) $(MODLIB)/build
# If System.map exists, run depmod. This deliberately does not have a
# dependency on System.map since that would run the dependency tree on
# vmlinux. This depmod is only for convenience to give the initial
# boot a modules.dep even before / is mounted read-write. However the
# boot script depmod is the master version.
ifeq "$(strip $(INSTALL_MOD_PATH))" ""
depmod_opts :=
else
depmod_opts := -b $(INSTALL_MOD_PATH) -r
endif
.PHONY: _modinst_post
_modinst_post:
if [ -r System.map ]; then $(DEPMOD) -ae -F System.map $(depmod_opts) $(KERNELRELEASE); fi
.PHONY: $(patsubst %, _modinst_%, $(SUBDIRS))
$(patsubst %, _modinst_%, $(SUBDIRS)) :
@$(MAKE) -C $(patsubst _modinst_%, %, $@) modules_install
else # CONFIG_MODULES
# ---------------------------------------------------------------------------
# Modules not configured
modules modules_install: FORCE
@echo
@echo "The present kernel configuration has modules disabled."
@echo "Type 'make config' and enable loadable module support."
@echo "Then build a kernel with module support enabled."
@echo
@exit 1
endif # CONFIG_MODULES
# Cleaning up
# ---------------------------------------------------------------------------
# files removed with 'make clean'
CLEAN_FILES += \
kernel/ksyms.lst include/linux/compile.h \
vmlinux System.map \
.tmp* \
drivers/char/consolemap_deftbl.c drivers/video/promcon_tbl.c \
drivers/char/conmakehash \
drivers/char/drm/*-mod.c \
drivers/pci/devlist.h drivers/pci/classlist.h drivers/pci/gen-devlist \
drivers/zorro/devlist.h drivers/zorro/gen-devlist \
sound/oss/bin2hex sound/oss/hex2hex \
drivers/atm/fore200e_mkfirm drivers/atm/{pca,sba}*{.bin,.bin1,.bin2} \
drivers/scsi/aic7xxx/aic7xxx_seq.h \
drivers/scsi/aic7xxx/aic7xxx_reg.h \
drivers/scsi/aic7xxx/aicasm/aicasm_gram.c \
drivers/scsi/aic7xxx/aicasm/aicasm_scan.c \
drivers/scsi/aic7xxx/aicasm/y.tab.h \
drivers/scsi/aic7xxx/aicasm/aicasm \
drivers/scsi/53c700_d.h \
net/khttpd/make_times_h \
net/khttpd/times.h \
submenu*
# directories removed with 'make clean'
CLEAN_DIRS += \
modules
# files removed with 'make mrproper'
MRPROPER_FILES += \
include/linux/autoconf.h include/linux/version.h \
drivers/net/hamradio/soundmodem/sm_tbl_{afsk1200,afsk2666,fsk9600}.h \
drivers/net/hamradio/soundmodem/sm_tbl_{hapn4800,psk4800}.h \
drivers/net/hamradio/soundmodem/sm_tbl_{afsk2400_7,afsk2400_8}.h \
drivers/net/hamradio/soundmodem/gentbl \
sound/oss/*_boot.h sound/oss/.*.boot \
sound/oss/msndinit.c \
sound/oss/msndperm.c \
sound/oss/pndsperm.c \
sound/oss/pndspini.c \
drivers/atm/fore200e_*_fw.c drivers/atm/.fore200e_*.fw \
.version .config* config.in config.old \
scripts/tkparse scripts/kconfig.tk scripts/kconfig.tmp \
scripts/lxdialog/*.o scripts/lxdialog/lxdialog \
.menuconfig.log \
include/asm \
.hdepend scripts/mkdep scripts/split-include scripts/docproc \
$(TOPDIR)/include/linux/modversions.h \
tags TAGS kernel.spec \
# directories removed with 'make mrproper'
MRPROPER_DIRS += \
include/config \
$(TOPDIR)/include/linux/modules
clean: archclean
@echo 'Cleaning up'
@find . \( -name \*.[oas] -o -name core -o -name .\*.cmd \) -type f -print \
| grep -v lxdialog/ | xargs rm -f
@rm -f $(CLEAN_FILES)
@rm -rf $(CLEAN_DIRS)
@$(MAKE) -C Documentation/DocBook clean
mrproper: clean archmrproper
@echo 'Making mrproper'
@find . \( -size 0 -o -name .depend \) -type f -print | xargs rm -f
@rm -f $(MRPROPER_FILES)
@rm -rf $(MRPROPER_DIRS)
@$(MAKE) -C Documentation/DocBook mrproper
distclean: mrproper
find . \( -not -type d \) -and \
\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
-o -name '.*.rej' -o -name '.SUMS' -o -size 0 \) -type f \
-print | xargs rm -f
# Assorted miscellaneous targets
# ---------------------------------------------------------------------------
# Documentation targets
sgmldocs psdocs pdfdocs htmldocs:
@$(MAKE) -C Documentation/DocBook $@
# RPM target
#
# If you do a make spec before packing the tarball you can rpm -ta it
spec:
. scripts/mkspec >kernel.spec
# Build a tar ball, generate an rpm from it and pack the result
# There arw two bits of magic here
# 1) The use of /. to avoid tar packing just the symlink
# 2) Removing the .dep files as they have source paths in them that
# will become invalid
rpm: clean spec
find . \( -size 0 -o -name .depend -o -name .hdepend \) -type f -print | xargs rm -f
set -e; \
cd $(TOPDIR)/.. ; \
ln -sf $(TOPDIR) $(KERNELPATH) ; \
tar -cvz --exclude CVS -f $(KERNELPATH).tar.gz $(KERNELPATH)/. ; \
rm $(KERNELPATH) ; \
cd $(TOPDIR) ; \
. scripts/mkversion > .version ; \
rpm -ta $(TOPDIR)/../$(KERNELPATH).tar.gz ; \
rm $(TOPDIR)/../$(KERNELPATH).tar.gz
# Scripts to check various things for consistency
checkconfig:
find * -name '*.[hcS]' -type f -print | sort | xargs $(PERL) -w scripts/checkconfig.pl
checkhelp:
find * -name [cC]onfig.in -print | sort | xargs $(PERL) -w scripts/checkhelp.pl
checkincludes:
find * -name '*.[hcS]' -type f -print | sort | xargs $(PERL) -w scripts/checkincludes.pl
# Generate tags for editors
TAGS: FORCE
{ find include/asm-${ARCH} -name '*.h' -print ; \
find include -type d \( -name "asm-*" -o -name config \) -prune -o -name '*.h' -print ; \
find $(SUBDIRS) init -name '*.[ch]' ; } | grep -v SCCS | etags -
# Exuberant ctags works better with -I
tags: FORCE
CTAGSF=`ctags --version | grep -i exuberant >/dev/null && echo "-I __initdata,__exitdata,EXPORT_SYMBOL,EXPORT_SYMBOL_NOVERS"`; \
ctags $$CTAGSF `find include/asm-$(ARCH) -name '*.h'` && \
find include -type d \( -name "asm-*" -o -name config \) -prune -o -name '*.h' -print | xargs ctags $$CTAGSF -a && \
find $(SUBDIRS) init -name '*.[ch]' | xargs ctags $$CTAGSF -a
# Make a backup
# FIXME anybody still using this?
backup: mrproper
cd .. && tar cf - linux/ | gzip -9 > backup.gz
sync
# Make checksums
# FIXME anybody still using this?
sums:
find . -type f -print | sort | xargs sum > .SUMS
# FIXME Should go into a make.lib or something
# ---------------------------------------------------------------------------
# read all saved command lines
cmd_files := $(wildcard .*.cmd)
ifneq ($(cmd_files),)
include $(cmd_files)
endif
# Usage: $(call if_changed_rule,foo)
# will check if $(cmd_foo) changed, or any of the prequisites changed,
# and if so will execute $(rule_foo)
if_changed_rule = $(if $(strip $? \
$(filter-out $(cmd_$(1)),$(cmd_$(@F)))\
$(filter-out $(cmd_$(@F)),$(cmd_$(1)))),\
@$(rule_$(1)))
# If quiet is set, only print short version of rule
cmd = @$(if $($(quiet)$(1)),echo '$($(quiet)$(1))' &&) $($(1))
FORCE:
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