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# We expect these two to already be set if people
# are using the top-level Makefile
DIST_DIR ?= $(shell pwd)/dist
INSTALL_DIR ?= $(DIST_DIR)/install
# Figure out which Linux version
LINUX_26VER ?= $(shell ( /bin/ls -ld linux-2.6.*-xen-sparse ) \
2>/dev/null | sed -e 's!^.*linux-\(.\+\)-xen-sparse!\1!' )
LINUX_24VER ?= $(shell ( /bin/ls -ld linux-2.4.*-xen-sparse ) \
2>/dev/null | sed -e 's!^.*linux-\(.\+\)-xen-sparse!\1!' )
LINUX_SRC_PATH ?= .:..
LINUX_26SRC ?= $(firstword $(foreach dir,$(subst :, ,$(LINUX_SRC_PATH)),\
$(wildcard $(dir)/linux-$(LINUX_26VER).tar.*z*)))
LINUX_24SRC ?= $(firstword $(foreach dir,$(subst :, ,$(LINUX_SRC_PATH)),\
$(wildcard $(dir)/linux-$(LINUX_24VER).tar.*z*)))
.PHONY: mkpatches linux-$(LINUX_24VER)-xen.patch linux-$(LINUX_26VER)-xen.patch mrproper
# search for a pristine kernel tar ball, or try downloading one
linux-$(LINUX_26VER).tar.bz2:
ifeq ($(LINUX_26SRC),)
echo "Cannot find linux-$(LINUX_26VER).tar.bz2 in path $(LINUX_SRC_PATH)"
wget http://www.kernel.org/pub/linux/kernel/v2.6/linux-$(LINUX_26VER).tar.bz2 -O./linux-$(LINUX_26VER).tar.bz2
LINUX_26SRC := ./linux-$(LINUX_26VER).tar.bz2
endif
pristine-linux-$(LINUX_26VER): $(LINUX_26SRC)
rm -rf tmp-linux-$(LINUX_26VER) $@ && \
mkdir -p tmp-linux-$(LINUX_26VER) && \
tar -C tmp-linux-$(LINUX_26VER) -jxf $(LINUX_26SRC) && \
mv tmp-linux-$(LINUX_26VER)/* $@
touch $@ # update timestamp to avoid rebuild
@rm -rf tmp-linux-$(LINUX_26VER)
# search for a pristine kernel tar ball, or try downloading one
linux-$(LINUX_24VER).tar.bz2:
ifeq ($(LINUX_24SRC),)
echo "Cannot find linux-$(LINUX_24VER).tar.bz2 in path $(LINUX_SRC_PATH)"
wget http://www.kernel.org/pub/linux/kernel/v2.4/linux-$(LINUX_24VER).tar.bz2 -O./linux-$(LINUX_24VER).tar.bz2
LINUX_24SRC := ./linux-$(LINUX_24VER).tar.bz2
endif
pristine-linux-$(LINUX_24VER): $(LINUX_24SRC)
rm -rf tmp-linux-$(LINUX_24VER) $@ && \
mkdir -p tmp-linux-$(LINUX_24VER) && \
tar -C tmp-linux-$(LINUX_24VER) -jxf $(LINUX_24SRC) && \
mv tmp-linux-$(LINUX_24VER)/* $@ && \
touch $@ # update timestamp to avoid rebuild
@rm -rf tmp-linux-$(LINUX_24VER)
linux-$(LINUX_24VER)-xen.patch: pristine-linux-$(LINUX_24VER)
rm -rf tmp-$@
cp -al pristine-linux-$(LINUX_24VER) tmp-$@
( cd linux-$(LINUX_24VER)-xen-sparse ; \
./mkbuildtree ../tmp-$@ )
diff -Nurp pristine-linux-$(LINUX_24VER) tmp-$@ > $@ || true
rm -rf tmp-$@
linux-$(LINUX_26VER)-xen.patch: pristine-linux-$(LINUX_26VER)
rm -rf tmp-$@
cp -al pristine-linux-$(LINUX_26VER) tmp-$@
( cd linux-$(LINUX_26VER)-xen-sparse ; \
./mkbuildtree ../tmp-$@ )
diff -Nurp pristine-linux-$(LINUX_26VER) tmp-$@ > $@ || true
rm -rf tmp-$@
mkpatches: linux-$(LINUX_24VER)-xen.patch linux-$(LINUX_26VER)-xen.patch
mrproper:
rm -rf pristine-linux-$(LINUX_24VER) linux-$(LINUX_24VER).tar.bz2
rm -rf pristine-linux-$(LINUX_26VER) linux-$(LINUX_26VER).tar.bz2
rm -rf linux-$(LINUX_24VER)-xen.patch linux-$(LINUX_26VER)-xen.patch
rm -rf pristine-netbsd-2.0 netbsd-2.0-tools
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