makefile

ARM 嵌入式 系统 设计与实例开发 实验教材 二源码

symlinks:
	rm -f include/asm
	( cd include ; ln -sf asm-$(ARCH) asm)
	@if [ ! -d include/linux/modules ]; then \
		mkdir include/linux/modules; \
	fi

oldconfig: symlinks
	$(CONFIG_SHELL) scripts/Configure -d arch/$(ARCH)/config.in

xconfig: symlinks
	$(MAKE) -C scripts kconfig.tk
	wish -f scripts/kconfig.tk

menuconfig: include/linux/version.h symlinks
	$(MAKE) -C scripts/lxdialog all
	$(CONFIG_SHELL) scripts/Menuconfig arch/$(ARCH)/config.in

config: symlinks
	$(CONFIG_SHELL) scripts/Configure arch/$(ARCH)/config.in

include/config/MARKER: scripts/split-include include/linux/autoconf.h
	scripts/split-include include/linux/autoconf.h include/config
	@ touch include/config/MARKER

linuxsubdirs: $(patsubst %, _dir_%, $(SUBDIRS))

$(patsubst %, _dir_%, $(SUBDIRS)) : dummy include/linux/version.h include/config/MARKER
	$(MAKE) CFLAGS="$(CFLAGS) $(CFLAGS_KERNEL)" -C $(patsubst _dir_%, %, $@)

$(TOPDIR)/include/linux/version.h: include/linux/version.h
$(TOPDIR)/include/linux/compile.h: include/linux/compile.h

newversion:
	. scripts/mkversion > .tmpversion
	@mv -f .tmpversion .version

include/linux/compile.h: $(CONFIGURATION) include/linux/version.h newversion
	@echo -n \#define UTS_VERSION \"\#`cat .version` > .ver
	@if [ -n "$(CONFIG_SMP)" ] ; then echo -n " SMP" >> .ver; fi
	@if [ -f .name ]; then  echo -n \-`cat .name` >> .ver; fi
	@echo ' '`date`'"' >> .ver
	@echo \#define LINUX_COMPILE_TIME \"`date +%T`\" >> .ver
	@echo \#define LINUX_COMPILE_BY \"`whoami`\" >> .ver
	@echo \#define LINUX_COMPILE_HOST \"`hostname`\" >> .ver
	@if [ -x /bin/dnsdomainname ]; then \
	   echo \#define LINUX_COMPILE_DOMAIN \"`dnsdomainname`\"; \
	 elif [ -x /bin/domainname ]; then \
	   echo \#define LINUX_COMPILE_DOMAIN \"`domainname`\"; \
	 else \
	   echo \#define LINUX_COMPILE_DOMAIN ; \
	 fi >> .ver
	@echo \#define LINUX_COMPILER \"`$(CC) $(CFLAGS) -v 2>&1 | tail -1`\" >> .ver
	@mv -f .ver $@

include/linux/version.h: ./Makefile
	@echo \#define UTS_RELEASE \"$(KERNELRELEASE)\" > .ver
	@echo \#define LINUX_VERSION_CODE `expr $(VERSION) \\* 65536 + $(PATCHLEVEL) \\* 256 + $(SUBLEVEL)` >> .ver
	@echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))' >>.ver
	@mv -f .ver $@

comma	:= ,

init/version.o: init/version.c include/linux/compile.h include/config/MARKER
	$(CC) $(CFLAGS) $(CFLAGS_KERNEL) -DUTS_MACHINE='"$(ARCH)"' -DKBUILD_BASENAME=$(subst $(comma),_,$(subst -,_,$(*F))) -c -o init/version.o init/version.c

init/main.o: init/main.c include/config/MARKER
	$(CC) $(CFLAGS) $(CFLAGS_KERNEL) $(PROFILING) -DKBUILD_BASENAME=$(subst $(comma),_,$(subst -,_,$(*F))) -c -o $*.o $<

fs lib mm ipc kernel drivers net: dummy
	$(MAKE) CFLAGS="$(CFLAGS) $(CFLAGS_KERNEL)" $(subst $@, _dir_$@, $@)

TAGS: dummy
	etags `find include/asm-$(ARCH) -name '*.h'`
	find include -type d \( -name "asm-*" -o -name config \) -prune -o -name '*.h' -print | xargs etags -a
	find $(SUBDIRS) init -name '*.[ch]' | xargs etags -a

# Exuberant ctags works better with -I
tags: dummy
	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

ifdef CONFIG_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_%, %, $@) CFLAGS="$(CFLAGS) $(MODFLAGS)" MAKING_MODULES=1 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: _modinst_post_pcmcia
#	if [ -r System.map ]; then $(DEPMOD) -ae -F System.map $(depmod_opts) $(KERNELRELEASE); fi

# Backwards compatibilty symlinks for people still using old versions
# of pcmcia-cs with hard coded pathnames on insmod.  Remove
# _modinst_post_pcmcia for kernel 2.4.1.
.PHONY: _modinst_post_pcmcia
_modinst_post_pcmcia:
	cd $(MODLIB); \
	mkdir -p pcmcia; \
	find kernel -path '*/pcmcia/*' -name '*.o' | xargs -i -r ln -sf ../{} pcmcia

.PHONY: $(patsubst %, _modinst_%, $(SUBDIRS))
$(patsubst %, _modinst_%, $(SUBDIRS)) :
	$(MAKE) -C $(patsubst _modinst_%, %, $@) modules_install

# modules disabled....

else
modules modules_install: dummy
	@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

clean:	archclean
	find . \( -name '*.[oas]' -o -name core -o -name '.*.flags' \) -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
	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
	rm -f core `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` TAGS tags

backup: mrproper
	cd .. && tar cf - linux/ | gzip -9 > backup.gz
	sync

sgmldocs: 
	chmod 755 $(TOPDIR)/scripts/docgen
	chmod 755 $(TOPDIR)/scripts/gen-all-syms
	chmod 755 $(TOPDIR)/scripts/kernel-doc
	$(MAKE) -C $(TOPDIR)/Documentation/DocBook books

psdocs: sgmldocs
	$(MAKE) -C Documentation/DocBook ps

pdfdocs: sgmldocs
	$(MAKE) -C Documentation/DocBook pdf

htmldocs: sgmldocs
	$(MAKE) -C Documentation/DocBook html

sums:
	find . -type f -print | sort | xargs sum > .SUMS

dep-files: scripts/mkdep archdep include/linux/version.h
	scripts/mkdep -- init/*.c > .depend
	scripts/mkdep -- `find $(FINDHPATH) -name SCCS -prune -o -follow -name \*.h ! -name modversions.h -print` > .hdepend
	$(MAKE) $(patsubst %,_sfdep_%,$(SUBDIRS)) _FASTDEP_ALL_SUB_DIRS="$(SUBDIRS)"
ifdef CONFIG_MODVERSIONS
	$(MAKE) update-modverfile
endif

ifdef CONFIG_MODVERSIONS
MODVERFILE := $(TOPDIR)/include/linux/modversions.h
else
MODVERFILE :=
endif
export	MODVERFILE

depend dep: dep-files

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

ifdef CONFIGURATION
..$(CONFIGURATION):
	@echo
	@echo "You have a bad or nonexistent" .$(CONFIGURATION) ": running 'make" $(CONFIGURATION)"'"
	@echo
	$(MAKE) $(CONFIGURATION)
	@echo
	@echo "Successful. Try re-making (ignore the error that follows)"
	@echo
	exit 1

#dummy: ..$(CONFIGURATION)
dummy:

else

dummy:

endif

include Rules.make

#
# This generates dependencies for the .h files.
#

scripts/mkdep: scripts/mkdep.c
	$(HOSTCC) $(HOSTCFLAGS) -o scripts/mkdep scripts/mkdep.c

scripts/split-include: scripts/split-include.c
	$(HOSTCC) $(HOSTCFLAGS) -o scripts/split-include scripts/split-include.c

#
# 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