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8dfb61dcba
linux-next/scripts/Makefile.package
Denis Efremov 8dfb61dcba kbuild: add variables for compression tools 
Allow user to use alternative implementations of compression tools,
such as pigz, pbzip2, pxz. For example, multi-threaded tools to
speed up the build:
$ make GZIP=pigz BZIP2=pbzip2

Variables _GZIP, _BZIP2, _LZOP are used internally because original env
vars are reserved by the tools. The use of GZIP in gzip tool is obsolete
since 2015. However, alternative implementations (e.g., pigz) still rely
on it. BZIP2, BZIP, LZOP vars are not obsolescent.

The credit goes to @grsecurity.

As a sidenote, for multi-threaded lzma, xz compression one can use:
$ export XZ_OPT="--threads=0"

Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-06-06 23:42:01 +09:00

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Makefile
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# SPDX-License-Identifier: GPL-2.0-only
# Makefile for the different targets used to generate full packages of a kernel
include $(srctree)/scripts/Kbuild.include
# RPM target
# ---------------------------------------------------------------------------
# The rpm target generates two rpm files:
# /usr/src/packages/SRPMS/kernel-2.6.7rc2-1.src.rpm
# /usr/src/packages/RPMS/i386/kernel-2.6.7rc2-1.<arch>.rpm
# The src.rpm files includes all source for the kernel being built
# The <arch>.rpm includes kernel configuration, modules etc.
#
# Process to create the rpm files
# a) clean the kernel
# b) Generate .spec file
# c) Build a tar ball, using symlink to make kernel version
# first entry in the path
# d) and pack the result to a tar.gz file
# e) generate the rpm files, based on kernel.spec
# - Use /. to avoid tar packing just the symlink
# Note that the rpm-pkg target cannot be used with KBUILD_OUTPUT,
# but the binrpm-pkg target can; for some reason O= gets ignored.
# Remove hyphens since they have special meaning in RPM filenames
KERNELPATH := kernel-$(subst -,_,$(KERNELRELEASE))
KDEB_SOURCENAME ?= linux-$(KERNELRELEASE)
KBUILD_PKG_ROOTCMD ?="fakeroot -u"
export KDEB_SOURCENAME
# Include only those top-level files that are needed by make, plus the GPL copy
TAR_CONTENT := $(KBUILD_ALLDIRS) .config .scmversion Makefile \
Kbuild Kconfig COPYING $(wildcard localversion*)
MKSPEC := $(srctree)/scripts/package/mkspec
quiet_cmd_src_tar = TAR $(2).tar.gz
cmd_src_tar = \
if test "$(objtree)" != "$(srctree)"; then \
echo >&2; \
echo >&2 " ERROR:"; \
echo >&2 " Building source tarball is not possible outside the"; \
echo >&2 " kernel source tree. Don't set KBUILD_OUTPUT, or use the"; \
echo >&2 " binrpm-pkg or bindeb-pkg target instead."; \
echo >&2; \
false; \
fi ; \
$(srctree)/scripts/setlocalversion --save-scmversion; \
tar -I $(_GZIP) -c $(RCS_TAR_IGNORE) -f $(2).tar.gz \
--transform 's:^:$(2)/:S' $(TAR_CONTENT) $(3); \
rm -f $(objtree)/.scmversion
# rpm-pkg
# ---------------------------------------------------------------------------
PHONY += rpm-pkg
rpm-pkg:
$(MAKE) clean
$(CONFIG_SHELL) $(MKSPEC) >$(objtree)/kernel.spec
$(call cmd,src_tar,$(KERNELPATH),kernel.spec)
+rpmbuild $(RPMOPTS) --target $(UTS_MACHINE) -ta $(KERNELPATH).tar.gz \
--define='_smp_mflags %{nil}'
# binrpm-pkg
# ---------------------------------------------------------------------------
PHONY += binrpm-pkg
binrpm-pkg:
$(MAKE) -f $(srctree)/Makefile
$(CONFIG_SHELL) $(MKSPEC) prebuilt > $(objtree)/binkernel.spec
+rpmbuild $(RPMOPTS) --define "_builddir $(objtree)" --target \
$(UTS_MACHINE) -bb $(objtree)/binkernel.spec
PHONY += deb-pkg
deb-pkg:
$(MAKE) clean
$(CONFIG_SHELL) $(srctree)/scripts/package/mkdebian
$(call cmd,src_tar,$(KDEB_SOURCENAME))
origversion=$$(dpkg-parsechangelog -SVersion |sed 's/-[^-]*$$//');\
mv $(KDEB_SOURCENAME).tar.gz ../$(KDEB_SOURCENAME)_$${origversion}.orig.tar.gz
+dpkg-buildpackage -r$(KBUILD_PKG_ROOTCMD) -a$$(cat debian/arch) $(DPKG_FLAGS) -i.git -us -uc
PHONY += bindeb-pkg
bindeb-pkg:
$(CONFIG_SHELL) $(srctree)/scripts/package/mkdebian
+dpkg-buildpackage -r$(KBUILD_PKG_ROOTCMD) -a$$(cat debian/arch) $(DPKG_FLAGS) -b -nc -uc
PHONY += intdeb-pkg
intdeb-pkg:
+$(CONFIG_SHELL) $(srctree)/scripts/package/builddeb
# snap-pkg
# ---------------------------------------------------------------------------
PHONY += snap-pkg
snap-pkg:
rm -rf $(objtree)/snap
mkdir $(objtree)/snap
$(MAKE) clean
$(call cmd,src_tar,$(KERNELPATH))
sed "s@KERNELRELEASE@$(KERNELRELEASE)@; \
s@SRCTREE@$(shell realpath $(KERNELPATH).tar.gz)@" \
$(srctree)/scripts/package/snapcraft.template > \
$(objtree)/snap/snapcraft.yaml
cd $(objtree)/snap && \
snapcraft --target-arch=$(UTS_MACHINE)
# tarball targets
# ---------------------------------------------------------------------------
tar-pkgs := dir-pkg tar-pkg targz-pkg tarbz2-pkg tarxz-pkg
PHONY += $(tar-pkgs)
$(tar-pkgs):
$(MAKE) -f $(srctree)/Makefile
+$(CONFIG_SHELL) $(srctree)/scripts/package/buildtar $@
# perf-pkg - generate a source tarball with perf source
# ---------------------------------------------------------------------------
perf-tar=perf-$(KERNELVERSION)
quiet_cmd_perf_tar = TAR
cmd_perf_tar = \
git --git-dir=$(srctree)/.git archive --prefix=$(perf-tar)/ \
HEAD^{tree} $$(cd $(srctree); \
echo $$(cat tools/perf/MANIFEST)) \
-o $(perf-tar).tar; \
mkdir -p $(perf-tar); \
git --git-dir=$(srctree)/.git rev-parse HEAD > $(perf-tar)/HEAD; \
(cd $(srctree)/tools/perf; \
util/PERF-VERSION-GEN $(CURDIR)/$(perf-tar)/); \
tar rf $(perf-tar).tar $(perf-tar)/HEAD $(perf-tar)/PERF-VERSION-FILE; \
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-tar-pkgs := perf-tar-src-pkg perf-targz-src-pkg perf-tarbz2-src-pkg perf-tarxz-src-pkg
PHONY += $(perf-tar-pkgs)
$(perf-tar-pkgs):
$(call cmd,perf_tar)
# Help text displayed when executing 'make help'
# ---------------------------------------------------------------------------
PHONY += help
help:
@echo ' rpm-pkg - Build both source and binary RPM kernel packages'
@echo ' binrpm-pkg - Build only the binary kernel RPM package'
@echo ' deb-pkg - Build both source and binary deb kernel packages'
@echo ' bindeb-pkg - Build only the binary kernel deb package'
@echo ' snap-pkg - Build only the binary kernel snap package'
@echo ' (will connect to external hosts)'
@echo ' dir-pkg - Build the kernel as a plain directory structure'
@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'
.PHONY: $(PHONY)
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