linux-imx/scripts/package/Makefile
Michal Marek 09155120cf kbuild: Clean up and speed up the localversion logic
Now that we run scripts/setlocalversion during every build, it makes
sense to move all the localversion logic there. This cleans up the
toplevel Makefile and also makes sure that the script is called only
once in 'make prepare' (previously, it would be called every time due to
a variable expansion in an ifneq statement). No user-visible change is
intended, unless one runs the setlocalversion script directly.

Reported-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Nico Schottelius <nico-linuxsetlocalversion@schottelius.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-06-18 14:23:21 +02:00

4.3 KiB

Makefile for the different targets used to generate full packages of a kernel

It uses the generic clean infrastructure of kbuild

RPM target

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The rpm target generates two rpm files:

/usr/src/packages/SRPMS/kernel-2.6.7rc2-1.src.rpm

/usr/src/packages/RPMS/i386/kernel-2.6.7rc2-1..rpm

The src.rpm files includes all source for the kernel being built

The .rpm includes kernel configuration, modules etc.

Process to create the rpm files

a) clean the kernel

b) Generate .spec file

c) Build a tar ball, using symlink to make kernel version

first entry in the path

d) and pack the result to a tar.gz file

e) generate the rpm files, based on kernel.spec

- Use /. to avoid tar packing just the symlink

Note that the rpm-pkg target cannot be used with KBUILD_OUTPUT,

but the binrpm-pkg target can; for some reason O= gets ignored.

Do we have rpmbuild, otherwise fall back to the older rpm

RPM := $(shell if [ -x "/usr/bin/rpmbuild" ]; then echo rpmbuild;
else echo rpm; fi)

Remove hyphens since they have special meaning in RPM filenames

KERNELPATH := kernel-$(subst -,,$(KERNELRELEASE)) MKSPEC := $(srctree)/scripts/package/mkspec PREV := set -e; cd ..;

rpm-pkg

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$(objtree)/kernel.spec: $(MKSPEC) $(srctree)/Makefile $(CONFIG_SHELL) $(MKSPEC) > $@

rpm-pkg rpm: $(objtree)/kernel.spec FORCE @if test -n "$(KBUILD_OUTPUT)"; then
echo "Building source + binary RPM is not possible outside the";
echo "kernel source tree. Don't set KBUILD_OUTPUT, or use the";
echo "binrpm-pkg target instead.";
false;
fi $(MAKE) clean $(PREV) ln -sf $(srctree) $(KERNELPATH) $(CONFIG_SHELL) $(srctree)/scripts/setlocalversion --scm-only > $(objtree)/.scmversion $(PREV) tar -cz $(RCS_TAR_IGNORE) -f $(KERNELPATH).tar.gz $(KERNELPATH)/. $(PREV) rm $(KERNELPATH) rm -f $(objtree)/.scmversion set -e;
$(CONFIG_SHELL) $(srctree)/scripts/mkversion > $(objtree)/.tmp_version set -e;
mv -f $(objtree)/.tmp_version $(objtree)/.version

$(RPM) $(RPMOPTS) --target $(UTS_MACHINE) -ta ../$(KERNELPATH).tar.gz
rm ../$(KERNELPATH).tar.gz

clean-files := $(objtree)/kernel.spec

binrpm-pkg

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$(objtree)/binkernel.spec: $(MKSPEC) $(srctree)/Makefile $(CONFIG_SHELL) $(MKSPEC) prebuilt > $@

binrpm-pkg: $(objtree)/binkernel.spec FORCE $(MAKE) KBUILD_SRC= set -e;
$(CONFIG_SHELL) $(srctree)/scripts/mkversion > $(objtree)/.tmp_version set -e;
mv -f $(objtree)/.tmp_version $(objtree)/.version

$(RPM) $(RPMOPTS) --define "_builddir $(objtree)" --target \
	$(UTS_MACHINE) -bb $<

clean-files += $(objtree)/binkernel.spec

Deb target

---------------------------------------------------------------------------

quiet_cmd_builddeb = BUILDDEB cmd_builddeb = set -e;
test id -u = 0 ||
test -n "$(KBUILD_PKG_ROOTCMD)" || {
which fakeroot >/dev/null 2>&1 &&
KBUILD_PKG_ROOTCMD="fakeroot -u";
} || {
echo;
echo "builddeb must be run as root (or using fakeroot).";
echo "KBUILD_PKG_ROOTCMD is unset and fakeroot not found.";
echo "Try setting KBUILD_PKG_ROOTCMD to a command to acquire";
echo "root privileges (e.g., 'fakeroot -u' or 'sudo').";
false;
} &&

$$KBUILD_PKG_ROOTCMD $(CONFIG_SHELL)
$(srctree)/scripts/package/builddeb

deb-pkg: FORCE $(MAKE) KBUILD_SRC= $(call cmd,builddeb)

clean-dirs += $(objtree)/debian/

tarball targets

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tar%pkg: FORCE $(MAKE) KBUILD_SRC= $(CONFIG_SHELL) $(srctree)/scripts/package/buildtar $@

clean-dirs += $(objtree)/tar-install/

Help text displayed when executing 'make help'

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help: FORCE @echo ' rpm-pkg - Build both source and binary RPM kernel packages' @echo ' binrpm-pkg - Build only the binary kernel package' @echo ' deb-pkg - Build the kernel as an deb package' @echo ' tar-pkg - Build the kernel as an uncompressed tarball' @echo ' targz-pkg - Build the kernel as a gzip compressed tarball' @echo ' tarbz2-pkg - Build the kernel as a bzip2 compressed tarball'