[PATCH next v2] kbuild: add ability to make source rpm buildable using koji

From: Jonathan Toppins
Date: Mon Nov 21 2022 - 10:00:40 EST


From: Ivan Vecera <ivecera@xxxxxxxxxx>

Changes:
- added new target 'srcrpm-pkg' to generate source rpm
- added required build tools to spec file
- removed locally compiled host tools to force their re-compile

Signed-off-by: Ivan Vecera <ivecera@xxxxxxxxxx>
Signed-off-by: Jonathan Toppins <jtoppins@xxxxxxxxxx>
Acked-by: Íñigo Huguet <ihuguet@xxxxxxxxxx>
Tested-by: Ivan Vecera <ivecera@xxxxxxxxxx>
---

Notes:
v2:
* updated UTS_MACHINE to be $(UTS_MACHINE)-linux
suggested by Masahiro Yamada

scripts/Makefile.package | 10 ++++++++++
scripts/package/mkspec | 7 +++++++
2 files changed, 17 insertions(+)

diff --git a/scripts/Makefile.package b/scripts/Makefile.package
index 8bbcced67c22..1290f1c631fb 100644
--- a/scripts/Makefile.package
+++ b/scripts/Makefile.package
@@ -62,6 +62,16 @@ rpm-pkg:
+rpmbuild $(RPMOPTS) --target $(UTS_MACHINE)-linux -ta $(KERNELPATH).tar.gz \
--define='_smp_mflags %{nil}'

+# srcrpm-pkg
+# ---------------------------------------------------------------------------
+PHONY += srcrpm-pkg
+srcrpm-pkg:
+ $(MAKE) clean
+ $(CONFIG_SHELL) $(MKSPEC) >$(objtree)/kernel.spec
+ $(call cmd,src_tar,$(KERNELPATH),kernel.spec)
+ +rpmbuild $(RPMOPTS) --target $(UTS_MACHINE)-linux -ts $(KERNELPATH).tar.gz \
+ --define='_smp_mflags %{nil}' --define='_srcrpmdir $(srctree)'
+
# binrpm-pkg
# ---------------------------------------------------------------------------
PHONY += binrpm-pkg
diff --git a/scripts/package/mkspec b/scripts/package/mkspec
index 70392fd2fd29..dda00a948a01 100755
--- a/scripts/package/mkspec
+++ b/scripts/package/mkspec
@@ -33,6 +33,8 @@ EXCLUDES="$RCS_TAR_IGNORE --exclude=*vmlinux* --exclude=*.mod \
--exclude=*.o --exclude=*.ko --exclude=*.cmd --exclude=Documentation \
--exclude=.config.old --exclude=.missing-syscalls.d --exclude=*.s"

+test -n "$LOCALVERSION" && MAKE="$MAKE LOCALVERSION=$LOCALVERSION"
+
# We can label the here-doc lines for conditional output to the spec file
#
# Labels:
@@ -49,6 +51,9 @@ sed -e '/^DEL/d' -e 's/^\t*//' <<EOF
URL: https://www.kernel.org
$S Source: kernel-$__KERNELRELEASE.tar.gz
Provides: $PROVIDES
+$S BuildRequires: bc binutils bison dwarves elfutils-libelf-devel flex
+$S BuildRequires: gcc make openssl openssl-devel perl python3 rsync
+
# $UTS_MACHINE as a fallback of _arch in case
# /usr/lib/rpm/platform/*/macros was not included.
%define _arch %{?_arch:$UTS_MACHINE}
@@ -80,6 +85,8 @@ $S$M against the $__KERNELRELEASE kernel package.
$S$M
$S %prep
$S %setup -q
+$S rm -f scripts/basic/fixdep scripts/kconfig/conf
+$S rm -f tools/objtool/{fixdep,objtool}
$S
$S %build
$S $MAKE %{?_smp_mflags} KBUILD_BUILD_VERSION=%{release}
--
2.31.1