linux-kernel - [RFC PATCH] kbuild: add ability to make source rpm buildable using koji

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Message-Id: <5b59fdb7db34f5292b1d138939c6b70b2b2039dd.1666194012.git.jtoppins@redhat.com>
Date:   Wed, 19 Oct 2022 11:40:12 -0400
From:   Jonathan Toppins <jtoppins@...hat.com>
To:     linux-kbuild@...r.kernel.org
Cc:     dzickus@...hat.com, kheib@...hat.com, jtornosm@...hat.com,
        ihuguet@...hat.com, Ivan Vecera <ivecera@...hat.com>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        linux-kernel@...r.kernel.org
Subject: [RFC PATCH] kbuild: add ability to make source rpm buildable using koji

From: Ivan Vecera <ivecera@...hat.com>

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@...hat.com>
Signed-off-by: Jonathan Toppins <jtoppins@...hat.com>
---
 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..e0830a870394 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) -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