%global commit                  3f9bde55d3d6bd6083af31a11eb2ac066904f581

%global gittag                  8.1.0.316

%global shortcommit             %(c=%{commit}; echo ${c:0:7})

%define spec_release            8

%define kmod_name		kvdo

%define kmod_driver_version	%{gittag}

%define kmod_rpm_release	%{spec_release}

%define kmod_kernel_version	5.14.0-31.el9

%define kmod_headers_version	%(rpm -qa kernel-devel | sed 's/^kernel-devel-//')

%define kmod_kbuild_dir		.

%define kmod_devel_package	0

Source0:	https://github.com/dm-vdo/%{kmod_name}/archive/%{commit}/%{kmod_name}-%{shortcommit}.tar.gz

%define findpat %( echo "%""P" )

Name:		kmod-kvdo

Version:	%{kmod_driver_version}

Release:	%{kmod_rpm_release}%{?dist}

Summary:	Kernel Modules for Virtual Data Optimizer

License:	GPLv2+

URL:		http://github.com/dm-vdo/kvdo

BuildRoot:	%(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)

BuildRequires:  elfutils-libelf-devel

BuildRequires:	glibc

BuildRequires:	kernel-devel >= %{kmod_kernel_version}

# Disable the kernel-debug requirement for now

BuildRequires:  libuuid-devel

BuildRequires:  redhat-rpm-config

ExcludeArch:    i686

ExcludeArch:    ppc

ExcludeArch:    ppc64

ExcludeArch:    s390

%global kernel_source() /usr/src/kernels/%{kmod_headers_version}

%global _use_internal_dependency_generator 0

Provides:         kernel-modules = %{kmod_kernel_version}.%{_target_cpu}

Provides:         kmod-%{kmod_name} = %{?epoch:%{epoch}:}%{version}-%{release}

Requires(post):   %{_sbindir}/weak-modules

Requires(postun): %{_sbindir}/weak-modules

Requires:         kernel >= %{kmod_kernel_version}

Requires:         kernel-core-uname-r >= %{kmod_kernel_version}

%description

Virtual Data Optimizer (VDO) is a device mapper target that delivers

block-level deduplication, compression, and thin provisioning.

This package provides the kernel modules for VDO.

%pre

# During the install, check whether kvdo or uds is loaded.  A warning here

# indicates that a previous install was not completely removed.  This message

# is purely informational to the user.

for module in kvdo uds; do

  if grep -q "^${module}" /proc/modules; then

    if [ "${module}" == "kvdo" ]; then

      echo "WARNING: Found ${module} module previously loaded (Version: $(cat /sys/kvdo/version 2>/dev/null || echo Unknown)).  A reboot is recommended before attempting to use the newly installed module."

    else

      echo "WARNING: Found ${module} module previously loaded.  A reboot is recommended before attempting to use the newly installed module."

    fi

  fi

done

%post

modules=( $(find /lib/modules/%{kmod_headers_version}/extra/kmod-%{kmod_name} | grep '\.ko$') )

printf '%s\n' "${modules[@]}" >> /var/lib/rpm-kmod-posttrans-weak-modules-add

%pretrans -p <lua>

posix.unlink("/var/lib/rpm-kmod-posttrans-weak-modules-add")

%posttrans

if [ -f "/var/lib/rpm-kmod-posttrans-weak-modules-add" ]; then

	modules=( $(cat /var/lib/rpm-kmod-posttrans-weak-modules-add) )

	rm -rf /var/lib/rpm-kmod-posttrans-weak-modules-add

	printf '%s\n' "${modules[@]}" | %{_sbindir}/weak-modules --dracut=/usr/bin/dracut --add-modules

fi

%preun

rpm -ql kmod-kvdo-%{kmod_driver_version}-%{kmod_rpm_release}%{?dist}.$(arch) | grep '\.ko$' > /var/run/rpm-kmod-%{kmod_name}-modules

# Check whether kvdo or uds is loaded, and if so attempt to remove it.  A

# failure to unload means there is still something using the module.  To make

# sure the user is aware, we print a warning with recommended instructions.

for module in kvdo uds; do

  if grep -q "^${module}" /proc/modules; then

    warnMessage="WARNING: ${module} in use.  Changes will take effect after a reboot."

    modprobe -r ${module} 2>/dev/null || echo ${warnMessage} && /usr/bin/true

  fi

done

%postun

modules=( $(cat /var/run/rpm-kmod-%{kmod_name}-modules) )

rm /var/run/rpm-kmod-%{kmod_name}-modules

printf '%s\n' "${modules[@]}" | %{_sbindir}/weak-modules --dracut=/usr/bin/dracut --remove-modules

%files

%defattr(644,root,root,755)

/lib/modules/%{kmod_headers_version}

/etc/depmod.d/%{kmod_name}.conf

/usr/share/doc/kmod-%{kmod_name}/greylist.txt

%prep

%setup -n %{kmod_name}-%{commit}

%{nil}

set -- *

mkdir source

mv "$@" source/

mkdir obj

%build

rm -rf obj

cp -r source obj

make -C %{kernel_source} M=$PWD/obj/%{kmod_kbuild_dir} V=1 \

	NOSTDINC_FLAGS="-I $PWD/obj/include -I $PWD/obj/include/uapi"

# mark modules executable so that strip-to-file can strip them

find obj/%{kmod_kbuild_dir} -name "*.ko" -type f -exec chmod u+x '{}' +

whitelist="/lib/modules/kabi-current/kabi_whitelist_%{_target_cpu}"

for modules in $( find obj/%{kmod_kbuild_dir} -name "*.ko" -type f -printf "%{findpat}\n" | sed 's|\.ko$||' | sort -u ) ; do

	# update depmod.conf

	module_weak_path=$(echo $modules | sed 's/[\/]*[^\/]*$//')

	if [ -z "$module_weak_path" ]; then

		module_weak_path=%{name}

	else

		module_weak_path=%{name}/$module_weak_path

	fi

	echo "override $(echo $modules | sed 's/.*\///') $(echo %{kmod_headers_version} | sed 's/\.[^\.]*$//').* weak-updates/$module_weak_path" >> source/depmod.conf

	# update greylist

	nm -u obj/%{kmod_kbuild_dir}/$modules.ko | sed 's/.*U //' |  sed 's/^\.//' | sort -u | while read -r symbol; do

		grep -q "^\s*$symbol\$" $whitelist || echo "$symbol" >> source/greylist

	done

done

sort -u source/greylist | uniq > source/greylist.txt

%install

export INSTALL_MOD_PATH=$RPM_BUILD_ROOT

export INSTALL_MOD_DIR=extra/%{name}

make -C %{kernel_source} modules_install V=1 \

	M=$PWD/obj/%{kmod_kbuild_dir}

# Cleanup unnecessary kernel-generated module dependency files.

find $INSTALL_MOD_PATH/lib/modules -iname 'modules.*' -exec rm {} \;

install -m 644 -D source/depmod.conf $RPM_BUILD_ROOT/etc/depmod.d/%{kmod_name}.conf

install -m 644 -D source/greylist.txt $RPM_BUILD_ROOT/usr/share/doc/kmod-%{kmod_name}/greylist.txt

%clean

rm -rf $RPM_BUILD_ROOT

%changelog

* Wed Dec 15 2021 - Andy Walsh <awalsh@redhat.com> - 8.1.0.316-8

- Rebuilt for latest kernel.

- Related: rhbz#2000926

* Tue Dec 07 2021 - Andy Walsh <awalsh@redhat.com> - 8.1.0.316-7

- Rebuilt for latest kernel.

- Related: rhbz#2000926

* Tue Dec 07 2021 - Andy Walsh <awalsh@redhat.com> - 8.1.0.316-6

- Rebuilt for latest kernel.

- Related: rhbz#2000926

* Thu Nov 11 2021 - Andy Walsh <awalsh@redhat.com> - 8.1.0.316-5

- Rebuilt for latest kernel.

- Related: rhbz#2000926

* Wed Oct 13 2021 - Andy Walsh <awalsh@redhat.com> - 8.1.0.316-4

- Rebuilt for latest kernel.

- Related: rhbz#2000926

* Thu Sep 30 2021 - Andy Walsh <awalsh@redhat.com> - 8.1.0.316-3

- Rebuilt for latest kernel.

- Related: rhbz#2000926

* Mon Aug 09 2021 - Andy Walsh <awalsh@redhat.com> - 8.1.0.316-2

- Rebased to upstream candidate.

- Resolves: rhbz#1955374

* Mon Aug 09 2021 Mohan Boddu <mboddu@redhat.com> - 8.1.0.316-1.1

- Rebuilt for IMA sigs, glibc 2.34, aarch64 flags

  Related: rhbz#1991688

* Sat Aug 07 2021 - Andy Walsh <awalsh@redhat.com> - 8.1.0.316-1

- Rebased to upstream candidate.

- Resolves: rhbz#1955374

* Thu Jul 29 2021 - Andy Walsh <awalsh@redhat.com> - 8.1.0.264-1

- Rebased to upstream candidate.

- Related: rhbz#1955374

- Fixed GCC implicit-fallthrough errors when building for latest kernel

- Resolves: rhbz#1984814

* Tue May 04 2021 - Andy Walsh <awalsh@redhat.com> - 8.1.0.4-1

- Initial build for EL9

- Related: rhbz#1955374