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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 01:10:04 +00:00
![Masahiro Yamada](/assets/img/avatar_default.png)
'make srcdeb-pkg' generates a source package, which you can build
later by using dpkg-buildpackage.
In older dpkg versions, 'dpkg-buildpackage --jobs=N' sets not only
DEB_BUILD_OPTIONS but also MAKEFLAGS. Hence, passing -j or --jobs
to dpkg-buildpackage was enough for kicking the parallel execution.
The behavior was changed by commit 1d0ea9b2ba3f ("dpkg-buildpackage:
Change -j, --jobs semantics to non-force mode") of dpkg project. [1]
Since then, 'dpkg-buildpackage --jobs=N' sets only DEB_BUILD_OPTIONS,
which is not parsed by the current debian/rules. To build the package
in parallel, you need to pass the alternative --jobs-force option or
set the MAKEFLAGS environment variable.
Debian policy [2] suggests the following code snippet for debian/rules.
ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
NUMJOBS = $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
MAKEFLAGS += -j$(NUMJOBS)
endif
I tweaked the code to filter out parallel=1 and passed --jobs=1 to
dpkg-buildpackage from scripts/Makefile.package. It is needed to force
'make deb-pkg' without the -j option to run in serial. Please note that
dpkg-buildpackage sets parallel=<nproc> in DEB_BUILD_OPTIONS by default
(that is, --jobs=auto is the default) and --jobs=1 is needed to restore
the serial execution. When dpkg-buildpackage is invoked from Kbuild,
the number of jobs is inherited from the top level Makefile. Passing
--jobs=1 to dpkg-buildpackage allows debian/rules to skip parsing
DEB_BUILD_OPTIONS.
[1] 1d0ea9b2ba
[2] https://www.debian.org/doc/debian-policy/ch-source.html#s-debianrules-options
Reported-by: Bastian Germann <bage@linutronix.de>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
274 lines
9.7 KiB
Makefile
274 lines
9.7 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0-only
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# Makefile for the different targets used to generate full packages of a kernel
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include $(srctree)/scripts/Kbuild.include
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include $(srctree)/scripts/Makefile.lib
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KERNELPATH := kernel-$(subst -,_,$(KERNELRELEASE))
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# Include only those top-level files that are needed by make, plus the GPL copy
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TAR_CONTENT := Documentation LICENSES arch block certs crypto drivers fs \
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include init io_uring ipc kernel lib mm net rust \
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samples scripts security sound tools usr virt \
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.config Makefile \
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Kbuild Kconfig COPYING $(wildcard localversion*)
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quiet_cmd_src_tar = TAR $(2).tar.gz
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cmd_src_tar = \
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if test "$(objtree)" != "$(srctree)"; then \
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echo >&2; \
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echo >&2 " ERROR:"; \
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echo >&2 " Building source tarball is not possible outside the"; \
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echo >&2 " kernel source tree. Don't set KBUILD_OUTPUT"; \
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echo >&2; \
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false; \
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fi ; \
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tar -I $(KGZIP) -c $(RCS_TAR_IGNORE) -f $(2).tar.gz \
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--transform 's:^:$(2)/:S' $(TAR_CONTENT) $(3)
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# Git
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# ---------------------------------------------------------------------------
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filechk_HEAD = git -C $(srctree) rev-parse --verify HEAD 2>/dev/null
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.tmp_HEAD: check-git FORCE
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$(call filechk,HEAD)
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PHONY += check-git
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check-git:
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@if ! $(srctree)/scripts/check-git; then \
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echo >&2 "error: creating source package requires git repository"; \
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false; \
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fi
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git-config-tar.gz = -c tar.tar.gz.command="$(KGZIP)"
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git-config-tar.bz2 = -c tar.tar.bz2.command="$(KBZIP2)"
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git-config-tar.lzma = -c tar.tar.lzma.command="$(LZMA)"
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git-config-tar.xz = -c tar.tar.xz.command="$(XZ)"
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git-config-tar.zst = -c tar.tar.zst.command="$(ZSTD)"
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quiet_cmd_archive = ARCHIVE $@
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cmd_archive = git -C $(srctree) $(git-config-tar$(suffix $@)) archive \
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--output=$$(realpath $@) $(archive-args)
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suffix-gzip := .gz
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suffix-bzip2 := .bz2
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suffix-lzma := .lzma
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suffix-xz := .xz
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# Linux source tarball
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# ---------------------------------------------------------------------------
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linux-tarballs := $(addprefix linux, .tar.gz .tar.bz2 .tar.lzma .tar.xz)
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targets += $(linux-tarballs)
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$(linux-tarballs): archive-args = --prefix=linux/ $$(cat $<)
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$(linux-tarballs): .tmp_HEAD FORCE
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$(call if_changed,archive)
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# rpm-pkg srcrpm-pkg binrpm-pkg
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# ---------------------------------------------------------------------------
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quiet_cmd_mkspec = GEN $@
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cmd_mkspec = $(srctree)/scripts/package/mkspec > $@
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kernel.spec: FORCE
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$(call cmd,mkspec)
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PHONY += rpm-sources
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rpm-sources: linux.tar.gz
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$(Q)mkdir -p rpmbuild/SOURCES
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$(Q)ln -f linux.tar.gz rpmbuild/SOURCES/linux.tar.gz
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$(Q)cp $(KCONFIG_CONFIG) rpmbuild/SOURCES/config
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$(Q)$(srctree)/scripts/package/gen-diff-patch rpmbuild/SOURCES/diff.patch
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PHONY += rpm-pkg srcrpm-pkg binrpm-pkg
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rpm-pkg: private build-type := a
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srcrpm-pkg: private build-type := s
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binrpm-pkg: private build-type := b
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rpm-pkg srcrpm-pkg: rpm-sources
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rpm-pkg srcrpm-pkg binrpm-pkg: kernel.spec
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+$(strip rpmbuild -b$(build-type) kernel.spec \
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--define='_topdir $(abspath rpmbuild)' \
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$(if $(filter a b, $(build-type)), \
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--target $(UTS_MACHINE)-linux --build-in-place --noprep --define='_smp_mflags %{nil}' \
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$$(rpm -q rpm >/dev/null 2>&1 || echo --nodeps)) \
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$(if $(filter b, $(build-type)), \
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--without devel) \
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$(RPMOPTS))
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# deb-pkg srcdeb-pkg bindeb-pkg
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# ---------------------------------------------------------------------------
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KDEB_SOURCE_COMPRESS ?= gzip
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supported-deb-source-compress := gzip bzip2 lzma xz
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PHONY += linux.tar.unsupported-deb-src-compress
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linux.tar.unsupported-deb-src-compress:
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@echo "error: KDEB_SOURCE_COMPRESS=$(KDEB_SOURCE_COMPRESS) is not supported. The supported values are: $(supported-deb-source-compress)" >&2
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@false
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debian-orig-suffix := \
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$(strip $(if $(filter $(supported-deb-source-compress), $(KDEB_SOURCE_COMPRESS)), \
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$(suffix-$(KDEB_SOURCE_COMPRESS)),.unsupported-deb-src-compress))
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quiet_cmd_debianize = GEN $@
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cmd_debianize = $(srctree)/scripts/package/mkdebian $(mkdebian-opts)
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debian: FORCE
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$(call cmd,debianize)
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PHONY += debian-orig
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debian-orig: private source = $(shell dpkg-parsechangelog -S Source)
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debian-orig: private version = $(shell dpkg-parsechangelog -S Version | sed 's/-[^-]*$$//')
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debian-orig: private orig-name = $(source)_$(version).orig.tar$(debian-orig-suffix)
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debian-orig: mkdebian-opts = --need-source
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debian-orig: linux.tar$(debian-orig-suffix) debian
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$(Q)if [ "$(df --output=target .. 2>/dev/null)" = "$(df --output=target $< 2>/dev/null)" ]; then \
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ln -f $< ../$(orig-name); \
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else \
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cp $< ../$(orig-name); \
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fi
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KBUILD_PKG_ROOTCMD ?= 'fakeroot -u'
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PHONY += deb-pkg srcdeb-pkg bindeb-pkg
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deb-pkg: private build-type := source,binary
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srcdeb-pkg: private build-type := source
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bindeb-pkg: private build-type := binary
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deb-pkg srcdeb-pkg: debian-orig
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bindeb-pkg: debian
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deb-pkg srcdeb-pkg bindeb-pkg:
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+$(strip dpkg-buildpackage \
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--build=$(build-type) --no-pre-clean --unsigned-changes \
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$(if $(findstring source, $(build-type)), \
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--unsigned-source --compression=$(KDEB_SOURCE_COMPRESS)) \
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$(if $(findstring binary, $(build-type)), \
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--rules-file='$(MAKE) -f debian/rules' --jobs=1 -r$(KBUILD_PKG_ROOTCMD) -a$$(cat debian/arch), \
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--no-check-builddeps) \
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$(DPKG_FLAGS))
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# snap-pkg
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# ---------------------------------------------------------------------------
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PHONY += snap-pkg
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snap-pkg:
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rm -rf $(objtree)/snap
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mkdir $(objtree)/snap
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$(MAKE) clean
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$(call cmd,src_tar,$(KERNELPATH))
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sed "s@KERNELRELEASE@$(KERNELRELEASE)@; \
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s@SRCTREE@$(shell realpath $(KERNELPATH).tar.gz)@" \
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$(srctree)/scripts/package/snapcraft.template > \
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$(objtree)/snap/snapcraft.yaml
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cd $(objtree)/snap && \
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snapcraft --target-arch=$(UTS_MACHINE)
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# dir-pkg tar*-pkg - tarball targets
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# ---------------------------------------------------------------------------
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tar-install: FORCE
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$(Q)$(MAKE) -f $(srctree)/Makefile
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+$(Q)$(srctree)/scripts/package/buildtar $@
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compress-tar.gz = -I "$(KGZIP)"
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compress-tar.bz2 = -I "$(KBZIP2)"
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compress-tar.xz = -I "$(XZ)"
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compress-tar.zst = -I "$(ZSTD)"
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quiet_cmd_tar = TAR $@
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cmd_tar = cd $<; tar cf ../$@ $(compress-tar$(suffix $@)) --owner=root --group=root --sort=name *
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dir-tarballs := $(addprefix linux-$(KERNELRELEASE)-$(ARCH), .tar .tar.gz .tar.bz2 .tar.xz .tar.zst)
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$(dir-tarballs): tar-install
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$(call cmd,tar)
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PHONY += dir-pkg
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dir-pkg: tar-install
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@echo "Kernel tree successfully created in $<"
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PHONY += tar-pkg
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tar-pkg: linux-$(KERNELRELEASE)-$(ARCH).tar
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@:
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tar%-pkg: linux-$(KERNELRELEASE)-$(ARCH).tar.% FORCE
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@:
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# perf-tar*-src-pkg - generate a source tarball with perf source
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# ---------------------------------------------------------------------------
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.tmp_perf:
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$(Q)mkdir .tmp_perf
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.tmp_perf/HEAD: .tmp_HEAD | .tmp_perf
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$(call cmd,copy)
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quiet_cmd_perf_version_file = GEN $@
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cmd_perf_version_file = cd $(srctree)/tools/perf; util/PERF-VERSION-GEN $(dir $(abspath $@))
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# PERF-VERSION-FILE and .tmp_HEAD are independent, but this avoids updating the
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# timestamp of PERF-VERSION-FILE.
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# The best is to fix tools/perf/util/PERF-VERSION-GEN.
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.tmp_perf/PERF-VERSION-FILE: .tmp_HEAD $(srctree)/tools/perf/util/PERF-VERSION-GEN | .tmp_perf
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$(call cmd,perf_version_file)
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perf-archive-args = --add-file=$$(realpath $(word 2, $^)) \
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--add-file=$$(realpath $(word 3, $^)) \
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$$(cat $(word 2, $^))^{tree} $$(cat $<)
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perf-tarballs := $(addprefix perf-$(KERNELVERSION), .tar .tar.gz .tar.bz2 .tar.xz .tar.zst)
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targets += $(perf-tarballs)
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$(perf-tarballs): archive-args = --prefix=perf-$(KERNELVERSION)/ $(perf-archive-args)
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$(perf-tarballs): tools/perf/MANIFEST .tmp_perf/HEAD .tmp_perf/PERF-VERSION-FILE FORCE
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$(call if_changed,archive)
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PHONY += perf-tar-src-pkg
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perf-tar-src-pkg: perf-$(KERNELVERSION).tar
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@:
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perf-tar%-src-pkg: perf-$(KERNELVERSION).tar.% FORCE
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@:
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# Help text displayed when executing 'make help'
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# ---------------------------------------------------------------------------
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PHONY += help
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help:
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@echo ' rpm-pkg - Build both source and binary RPM kernel packages'
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@echo ' srcrpm-pkg - Build only the source kernel RPM package'
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@echo ' binrpm-pkg - Build only the binary kernel RPM package'
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@echo ' deb-pkg - Build both source and binary deb kernel packages'
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@echo ' srcdeb-pkg - Build only the source kernel deb package'
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@echo ' bindeb-pkg - Build only the binary kernel deb package'
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@echo ' snap-pkg - Build only the binary kernel snap package'
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@echo ' (will connect to external hosts)'
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@echo ' dir-pkg - Build the kernel as a plain directory structure'
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@echo ' tar-pkg - Build the kernel as an uncompressed tarball'
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@echo ' targz-pkg - Build the kernel as a gzip compressed tarball'
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@echo ' tarbz2-pkg - Build the kernel as a bzip2 compressed tarball'
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@echo ' tarxz-pkg - Build the kernel as a xz compressed tarball'
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@echo ' tarzst-pkg - Build the kernel as a zstd compressed tarball'
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@echo ' perf-tar-src-pkg - Build the perf source tarball with no compression'
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@echo ' perf-targz-src-pkg - Build the perf source tarball with gzip compression'
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@echo ' perf-tarbz2-src-pkg - Build the perf source tarball with bz2 compression'
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@echo ' perf-tarxz-src-pkg - Build the perf source tarball with xz compression'
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@echo ' perf-tarzst-src-pkg - Build the perf source tarball with zst compression'
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PHONY += FORCE
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FORCE:
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# Read all saved command lines and dependencies for the $(targets) we
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# may be building above, using $(if_changed{,_dep}). As an
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# optimization, we don't need to read them if the target does not
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# exist, we will rebuild anyway in that case.
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existing-targets := $(wildcard $(sort $(targets)))
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-include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)
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.PHONY: $(PHONY)
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