Here is a a patch that adds a kernel build target called "modules_update".
The existing "modules_install" target blows away the entire /lib/modules/`uname -r`/kernel directory and copies out every single module when called at the top level. This new "modules_update" target only copies out modules that have changed, using "cp -u". This less zealous method is a more efficient approach to module installation for kernel developers working on single, or small numbers of modules. Where "make modules_install" was taking ~ 3 minutes, "make modules_update" is taking < 1 minute, as a rough benchmark. Signed-off-by: Kylie Hall <[EMAIL PROTECTED]> Signed-off-by: Dustin Kirkland <[EMAIL PROTECTED]> --- Makefile | 34 ++++++++++++++++++++++++++++++++++ scripts/Makefile.modupdt | 29 +++++++++++++++++++++++++++++ 2 files changed, 63 insertions(+) --- linux-2.6.15-rc5/Makefile 2005-12-03 23:10:42.000000000 -0600 +++ linux-2.6.15-rc5-mm3/Makefile 2006-04-13 12:05:26.000000000 -0500 @@ -922,6 +919,40 @@ modules: $(vmlinux-dirs) $(if $(KBUILD_B .PHONY: modules_prepare modules_prepare: prepare scripts +# Target to update modules +.PHONY: modules_update +modules_update: _modupdt_ _modupdt_post + +.PHONY: _modupdt_ +_modupdt_: + @if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \ + echo "Warning: you may need to install module-init-tools"; \ + echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\ + sleep 1; \ + fi + @rm -f $(MODLIB)/source + @mkdir -p $(MODLIB)/kernel + @ln -s $(srctree) $(MODLIB)/source + @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ + rm -f $(MODLIB)/build ; \ + ln -s $(objtree) $(MODLIB)/build ; \ + fi + $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modupdt + +# If System.map exists, run depmod. This deliberately does not have a +# dependency on System.map since that would run the dependency tree on +# vmlinux. This depmod is only for convenience to give the initial +# boot a modules.dep even before / is mounted read-write. However the +# boot script depmod is the master version. +ifeq "$(strip $(INSTALL_MOD_PATH))" "" +depmod_opts := +else +depmod_opts := -b $(INSTALL_MOD_PATH) -r +endif +.PHONY: _modupdt_post +_modupdt_post: _modupdt_ + if [ -r System.map -a -x $(DEPMOD) ]; then $(DEPMOD) -ae -F System.map $(depmod_opts) $(KERNELRELEASE); fi + # Target to install modules .PHONY: modules_install modules_install: _modinst_ _modinst_post --- linux-2.6.15-rc5/scripts/Makefile.modupdt 1969-12-31 18:00:00.000000000 -0600 +++ linux-2.6.15-rc5-mm3/scripts/Makefile.modupdt 2006-04-13 13:37:24.000000000 -0500 @@ -0,0 +1,29 @@ +# ========================================================================== +# Installing modules +# ========================================================================== + +.PHONY: __modupdt +__modupdt: + +include scripts/Kbuild.include + +# + +__modules := $(sort $(shell grep -h '\.ko' /dev/null $(wildcard $(MODVERDIR)/*.mod))) +modules := $(patsubst %.o,%.ko,$(wildcard $(__modules:.ko=.o))) + +.PHONY: $(modules) +__modupdt: $(modules) + @: + + cmd_modules_update = mkdir -p $(2); cp -vu $@ $(2) | $(AWK) -F"'" '{print $$1}' | sed "s/\`/ UPDATE /" + +# Modules built outside the kernel source tree go into extra by default +INSTALL_MOD_DIR ?= extra +ext-mod-dir = $(INSTALL_MOD_DIR)$(subst $(KBUILD_EXTMOD),,$(@D)) + +modinst_dir = $(if $(KBUILD_EXTMOD),$(ext-mod-dir),kernel/$(@D)) + +$(modules): + $(call cmd,modules_update,$(MODLIB)/$(modinst_dir)) + ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ kbuild-devel mailing list kbuild-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kbuild-devel
