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SubjectRe: [PATCH v2] kbuild: (bin)rpm-pkg: fix version number handling
On 14 September 2017 at 14:26, Masahiro Yamada
<yamada.masahiro@socionext.com> wrote:
> The "Release:" field of the spec file is determined based on the
> .version file.
>
> However, the .version file is not copied to the source tar file.
> So, when we build the kernel from the source package, the UTS_VERSION
> always indicates #1. This does not match with "rpm -q".
>
> The kernel UTS_VERSION and "rpm -q" do not agree for binrpm-pkg, either.
> Please note the kernel has already been built before the spec file is
> created. Currently, mkspec invokes mkversion. This script returns an
> incremented version. So, the "Release:" field of the spec file is
> greater than the version in the kernel by one.
>
> For the source package build (where .version file is missing), we can
> give KBUILD_BUILD_VERSION=%{release} to the build command.
>
> For the binary package build, we can simply read out the .version file
> because it contains the version number that was used for building the
> kernel image.
>
> We can remove scripts/mkversion because scripts/package/Makefile need
> not touch the .version file.
>
> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
> ---
>
> Changes in v2:
> - Remove bogus comment in mkspec
>
> scripts/mkversion | 6 ------
> scripts/package/Makefile | 5 -----
> scripts/package/mkspec | 6 ++----
> 3 files changed, 2 insertions(+), 15 deletions(-)
> delete mode 100644 scripts/mkversion
>
> diff --git a/scripts/mkversion b/scripts/mkversion
> deleted file mode 100644
> index c12addc..0000000
> --- a/scripts/mkversion
> +++ /dev/null
> @@ -1,6 +0,0 @@
> -if [ ! -f .version ]
> -then
> - echo 1
> -else
> - expr 0`cat .version` + 1
> -fi
> diff --git a/scripts/package/Makefile b/scripts/package/Makefile
> index 71b4a8a..73f9f31 100644
> --- a/scripts/package/Makefile
> +++ b/scripts/package/Makefile
> @@ -50,8 +50,6 @@ rpm-pkg rpm: FORCE
> $(MAKE) clean
> $(CONFIG_SHELL) $(MKSPEC) >$(objtree)/kernel.spec
> $(call cmd,src_tar,$(KERNELPATH),kernel.spec)
> - $(CONFIG_SHELL) $(srctree)/scripts/mkversion > $(objtree)/.tmp_version
> - mv -f $(objtree)/.tmp_version $(objtree)/.version
> rpmbuild $(RPMOPTS) --target $(UTS_MACHINE) -ta $(KERNELPATH).tar.gz
> rm $(KERNELPATH).tar.gz kernel.spec
>
> @@ -60,9 +58,6 @@ rpm-pkg rpm: FORCE
> binrpm-pkg: FORCE
> $(MAKE) KBUILD_SRC=
> $(CONFIG_SHELL) $(MKSPEC) prebuilt > $(objtree)/binkernel.spec
> - $(CONFIG_SHELL) $(srctree)/scripts/mkversion > $(objtree)/.tmp_version
> - mv -f $(objtree)/.tmp_version $(objtree)/.version
> -
> rpmbuild $(RPMOPTS) --define "_builddir $(objtree)" --target \
> $(UTS_MACHINE) -bb $(objtree)/binkernel.spec
> rm binkernel.spec
> diff --git a/scripts/package/mkspec b/scripts/package/mkspec
> index bb43f15..e81dafc 100755
> --- a/scripts/package/mkspec
> +++ b/scripts/package/mkspec
> @@ -27,9 +27,7 @@ __KERNELRELEASE=`echo $KERNELRELEASE | sed -e "s/-/_/g"`
> echo "Name: kernel"
> echo "Summary: The Linux Kernel"
> echo "Version: $__KERNELRELEASE"
> -# we need to determine the NEXT version number so that uname and
> -# rpm -q will agree
> -echo "Release: `. $srctree/scripts/mkversion`"
> +echo "Release: $(cat .version)"

$(cat .version||echo 1)"

.version might not exist at that point - for example when calling
make rpm-pkg from a pristine source tree. Apart from that looks good
to me.

> echo "License: GPL"
> echo "Group: System Environment/Kernel"
> echo "Vendor: The Linux Community"
> @@ -77,7 +75,7 @@ fi
> echo "%build"
>
> if ! $PREBUILT; then
> -echo "make clean && make %{?_smp_mflags}"
> +echo "make clean && make %{?_smp_mflags} KBUILD_BUILD_VERSION=%{release}"
> echo ""
> fi
>
> --
> 2.7.4
>

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