# Makefile for the different targets used to generate full packages of a kernel
  # It uses the generic clean infrastructure of kbuild

  # RPM target
  # ---------------------------------------------------------------------------
  # 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.<arch>.rpm
  # The src.rpm files includes all source for the kernel being built
  # The <arch>.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 -P ..;

  
  # rpm-pkg

  # ---------------------------------------------------------------------------

  $(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 --save-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

  # ---------------------------------------------------------------------------

  $(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
  # ---------------------------------------------------------------------------

  tar%pkg: FORCE

  	$(MAKE) KBUILD_SRC=

  	$(CONFIG_SHELL) $(srctree)/scripts/package/buildtar $@
  
  clean-dirs += $(objtree)/tar-install/

  # perf-pkg - generate a source tarball with perf source
  # ---------------------------------------------------------------------------
  
  perf-tar=perf-$(KERNELVERSION)
  
  quiet_cmd_perf_tar = TAR
        cmd_perf_tar = \

  git --git-dir=$(srctree)/.git archive --prefix=$(perf-tar)/         \
  	HEAD^{tree} $$(cd $(srctree);                               \
  		       echo $$(cat $(srctree)/tools/perf/MANIFEST)) \
  	-o $(perf-tar).tar;                                         \

  mkdir -p $(perf-tar);                                               \

  git --git-dir=$(srctree)/.git rev-parse HEAD > $(perf-tar)/HEAD;    \

  tar rf $(perf-tar).tar $(perf-tar)/HEAD;                            \
  rm -r $(perf-tar);                                                  \
  $(if $(findstring tar-src,$@),,                                     \
  $(if $(findstring bz2,$@),bzip2,                                    \
  $(if $(findstring gz,$@),gzip,                                      \

  $(if $(findstring xz,$@),xz,                                        \
  $(error unknown target $@))))                                       \

  	-f -9 $(perf-tar).tar)
  
  perf-%pkg: FORCE
  	$(call cmd,perf_tar)

  # Help text displayed when executing 'make help'
  # ---------------------------------------------------------------------------

  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 a 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'

  	@echo '  tarxz-pkg           - Build the kernel as a xz compressed tarball'

  	@echo '  perf-tar-src-pkg    - Build $(perf-tar).tar source tarball'
  	@echo '  perf-targz-src-pkg  - Build $(perf-tar).tar.gz source tarball'
  	@echo '  perf-tarbz2-src-pkg - Build $(perf-tar).tar.bz2 source tarball'

  	@echo '  perf-tarxz-src-pkg  - Build $(perf-tar).tar.xz source tarball'