# Set to 1 if building an empty subscription-only package.

%define empty_package		1

#######################################################

# Only need to update these variables and the changelog

%define kernel_ver	4.18.0-477.13.1.el8_8

%define kpatch_ver	0.9.7

%define rpm_ver		0

%define rpm_rel		0

%if !%{empty_package}

# Patch sources below. DO NOT REMOVE THIS LINE.

Source100:		XXX.patch

#Source101:		YYY.patch

# End of patch sources. DO NOT REMOVE THIS LINE.

%endif

%define sanitized_rpm_rel	%{lua: print((string.gsub(rpm.expand("%rpm_rel"), "%.", "_")))}

%define sanitized_kernel_ver   %{lua: print((string.gsub(string.gsub(rpm.expand("%kernel_ver"), '.el8_?\%d?', ""), "%.", "_")))}

%define kernel_ver_arch        %{kernel_ver}.%{_arch}

Name:		kpatch-patch-%{sanitized_kernel_ver}

Version:	%{rpm_ver}

Release:	%{rpm_rel}%{?dist}

%if %{empty_package}

Summary:	Initial empty kpatch-patch for kernel-%{kernel_ver_arch}

%else

Summary:	Live kernel patching module for kernel-%{kernel_ver_arch}

%endif

Group:		System Environment/Kernel

License:	GPLv2

ExclusiveArch:	x86_64 ppc64le

Conflicts:	%{name} < %{version}-%{release}

Provides:	kpatch-patch = %{kernel_ver_arch}

Provides:	kpatch-patch = %{kernel_ver}

%if !%{empty_package}

Requires:	systemd

%endif

Requires:	kpatch >= 0.6.1-1

Requires:	kernel-uname-r = %{kernel_ver_arch}

%if !%{empty_package}

BuildRequires:	patchutils

BuildRequires:	kernel-devel = %{kernel_ver}

BuildRequires:	kernel-debuginfo = %{kernel_ver}

# kernel build requirements, generated from:

#   % rpmspec -q --buildrequires kernel.spec | sort | awk '{print "BuildRequires:\t" $0}'

# with arch-specific packages moved into conditional block

BuildRequires:  asciidoc

BuildRequires:  audit-libs-devel

BuildRequires:  bash

BuildRequires:  bc

BuildRequires:  binutils

BuildRequires:  binutils-devel

BuildRequires:  bison

BuildRequires:  bpftool

BuildRequires:  bzip2

BuildRequires:  clang

BuildRequires:  coreutils

BuildRequires:  diffutils

BuildRequires:  dwarves

BuildRequires:  elfutils

BuildRequires:  elfutils-devel

BuildRequires:  findutils

BuildRequires:  flex

BuildRequires:  gawk

BuildRequires:  gcc

BuildRequires:  gettext

BuildRequires:  git

BuildRequires:  gzip

BuildRequires:  hmaccalc

BuildRequires:  hostname

BuildRequires:  java-devel

BuildRequires:  kabi-dw

BuildRequires:  kmod

BuildRequires:  libbabeltrace-devel

BuildRequires:  libbpf-devel

BuildRequires:  libcap-devel

BuildRequires:  libcap-ng-devel

BuildRequires:  libmnl-devel

BuildRequires:  libnl3-devel

BuildRequires:  llvm

BuildRequires:  m4

BuildRequires:  make

BuildRequires:  ncurses-devel

BuildRequires:  net-tools

BuildRequires:  newt-devel

BuildRequires:  nss-tools

BuildRequires:  numactl-devel

BuildRequires:  openssl

BuildRequires:  openssl-devel

BuildRequires:  patch

BuildRequires:  pciutils-devel

BuildRequires:  perl-Carp

BuildRequires:  perl-devel

BuildRequires:  perl(ExtUtils::Embed)

BuildRequires:  perl-generators

BuildRequires:  perl-interpreter

BuildRequires:  python3-devel

BuildRequires:  python3-docutils

BuildRequires:  redhat-rpm-config

BuildRequires:  rpm-build

BuildRequires:  rsync

BuildRequires:  tar

BuildRequires:  which

BuildRequires:  xmlto

BuildRequires:  xz

BuildRequires:  xz-devel

BuildRequires:  zlib-devel

%ifarch x86_64

BuildRequires:	pesign >= 0.10-4

%endif

%ifarch ppc64le

BuildRequires:	gcc-plugin-devel

%endif

Source0:	https://github.com/dynup/kpatch/archive/v%{kpatch_ver}.tar.gz

Source10:	kernel-%{kernel_ver}.src.rpm

# kpatch-build patches

%global _dupsign_opts --keyname=rhelkpatch1

%define builddir	%{_builddir}/kpatch-%{kpatch_ver}

%define kpatch		%{_sbindir}/kpatch

%define kmoddir 	%{_usr}/lib/kpatch/%{kernel_ver_arch}

%define kinstdir	%{_sharedstatedir}/kpatch/%{kernel_ver_arch}

%define patchmodname	kpatch-%{sanitized_kernel_ver}-%{version}-%{sanitized_rpm_rel}

%define patchmod	%{patchmodname}.ko

%define _missing_build_ids_terminate_build 1

%define _find_debuginfo_opts -r

%undefine _include_minidebuginfo

%undefine _find_debuginfo_dwz_opts

%description

This is a kernel live patch module which can be loaded by the kpatch

command line utility to modify the code of a running kernel.  This patch

module is targeted for kernel-%{kernel_ver}.

%prep

%autosetup -n kpatch-%{kpatch_ver} -p1

%build

kdevdir=/usr/src/kernels/%{kernel_ver_arch}

vmlinux=/usr/lib/debug/lib/modules/%{kernel_ver_arch}/vmlinux

# kpatch-build

make -C kpatch-build

# patch module

for i in %{sources}; do

	[[ $i == *.patch ]] && patch_sources="$patch_sources $i"

done

export CACHEDIR="%{builddir}/.kpatch"

kpatch-build/kpatch-build --non-replace -n %{patchmodname} -r %{SOURCE10} -v $vmlinux --skip-cleanup $patch_sources || { cat "${CACHEDIR}/build.log"; exit 1; }

%install

installdir=%{buildroot}/%{kmoddir}

install -d $installdir

install -m 755 %{builddir}/%{patchmod} $installdir

%files

%{_usr}/lib/kpatch

%post

%{kpatch} install -k %{kernel_ver_arch} %{kmoddir}/%{patchmod}

chcon -t modules_object_t %{kinstdir}/%{patchmod}

sync

if [[ %{kernel_ver_arch} = $(uname -r) ]]; then

	cver="%{rpm_ver}_%{rpm_rel}"

	pname=$(echo "kpatch_%{sanitized_kernel_ver}" | sed 's/-/_/')

	lver=$({ %{kpatch} list | sed -nr "s/^${pname}_([0-9_]+)\ \[enabled\]$/\1/p"; echo "${cver}"; } | sort -V | tail -1)

	if [ "${lver}" != "${cver}" ]; then

		echo "WARNING: at least one loaded kpatch-patch (${pname}_${lver}) has a newer version than the one being installed."

		echo "WARNING: You will have to reboot to load a downgraded kpatch-patch"

	else

		%{kpatch} load %{patchmod}

	fi

fi

exit 0

%postun

%{kpatch} uninstall -k %{kernel_ver_arch} %{patchmod}

sync

exit 0

%else

%description

This is an empty kpatch-patch package which does not contain any real patches.

It is only a method to subscribe to the kpatch stream for kernel-%{kernel_ver}.

%files

%doc

%endif

%changelog

* Tue May 23 2023 Yannick Cote <ycote@redhat.com> [0-0.el8]

- An empty patch to subscribe to kpatch stream for kernel-4.18.0-477.13.1.el8_8 [2209331]