Blame SOURCES/kmodtool

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#!/bin/bash
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# kmodtool - Helper script for building kernel module RPMs
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#            An original version appeared in Fedora. This version is
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#            generally called only by the %kernel_module_package RPM macro
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#            during the process of building Driver Update Packages (which
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#            are also known as "kmods" in the Fedora community).
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#
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# Copyright (c) 2003-2010 Ville Skyttä <ville.skytta@iki.fi>,
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#                         Thorsten Leemhuis <fedora@leemhuis.info>
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#                         Jon Masters <jcm@redhat.com>
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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# Changelog:
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#
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#            2010/07/28 - Add fixes for filelists in line with LF standard
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#			- Remove now defunct "framepointer" kernel variant
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#			- Change version to "rhel6-rh2" as a consequence.
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#
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#            2010/01/10 - Simplified for RHEL6. We are working on upstream
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#                         moving to a newer format and in any case do not
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#                         need to retain support for really old systems.
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shopt -s extglob
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myprog="kmodtool"
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myver="0.10.10_rhel8"
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knownvariants=@(debug|kdump|zfcpdump)
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kmod_name=
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kver=
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verrel=
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variant=
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get_verrel ()
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{
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  verrel=${1:-$(uname -r)}
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  verrel=${verrel/%[.+]$knownvariants/}
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}
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print_verrel ()
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{
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  get_verrel "$@"
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  echo "${verrel}"
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}
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get_variant ()
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{
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  get_verrel "$@"
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  variant=${1:-$(uname -r)}
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  variant=${variant/#$verrel?(.+)/}
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  variant=${variant:-'""'}
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}
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print_variant ()
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{
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  get_variant $@
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  echo "${variant}"
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}
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# Detect flavor separator character. We have to do that due to
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# a systemd-tailored patch for kernel spec[1][2] introduced in Fedora and then
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# imported in RHEL 8 that broke all OOT kmod infrastructure for the flavored
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# kernels.
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#
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# [1] https://lists.fedoraproject.org/pipermail/kernel/2013-June/004262.html
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# [2] https://src.fedoraproject.org/rpms/kernel/c/faf25207dc86666a611c45ae3ffaf385c170bd2a
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#
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# $1 - kver
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# $2 - variant
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get_variant_char ()
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{
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  variant="$2"
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  [ "$variant" != "default" ] || variant=""
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  get_verrel "$1"
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  variant_char=""
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  [ -n "$variant" ] || return 0
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  # We expect that the flavored kernel is already installed in the buildroot
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  variant_char="+"
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  [ -e "/usr/src/kernels/${verrel}+${variant}" ] && return 0
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  variant_char="."
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}
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print_variant_char ()
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{
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  get_variant_char "$@"
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  echo "${variant_char}"
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}
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print_kernel_source ()
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{
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  get_variant_char "$@"
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  echo "/usr/src/kernels/${verrel}${variant_char}${variant}"
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}
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get_filelist() {
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	local IFS=$'\n'
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	filelist=($(cat))
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	if [ ${#filelist[@]} -gt 0 ];
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	then
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		for ((n = 0; n < ${#filelist[@]}; n++));
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		do
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			line="${filelist[n]}"
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			line=$(echo "$line" \
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				| sed -e "s/%verrel/$verrel/g" \
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				| sed -e "s/%variant/$variant/g" \
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				| sed -e "s/%dashvariant/$dashvariant/g" \
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				| sed -e "s/%dotvariant/$dotvariant/g" \
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				| sed -e "s/\+%1/$dotvariant/g" \
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				| sed -e "s/\.%1/$dotvariant/g" \
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				| sed -e "s/\-%1/$dotvariant/g" \
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				| sed -e "s/%2/$verrel/g")
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			echo "$line"
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		done
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	else
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		echo "%defattr(644,root,root,755)"
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		echo "/lib/modules/${verrel}${dotvariant}"
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	fi
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}
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get_rpmtemplate ()
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{
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    local variant="${1}"
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    get_variant_char "${verrel}" "${variant}"
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    local dashvariant="${variant:+-${variant}}"
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    local dotvariant="${variant:+${variant_char}${variant}}"
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    echo "%package       -n kmod-${kmod_name}${dashvariant}"
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    if [ -z "$kmod_provides_summary" ]; then
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        echo "Summary:          ${kmod_name} kernel module(s)"
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    fi
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    if [ -z "$kmod_provides_group" ]; then
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        echo "Group:            System Environment/Kernel"
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    fi
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    if [ ! -z "$kmod_version" ]; then
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        echo "Version: %{kmod_version}"
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    fi
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    if [ ! -z "$kmod_release" ]; then
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        echo "Release: %{kmod_release}"
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    fi
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    # Turn of the internal dep generator so we will use the kmod scripts.
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    echo "%global _use_internal_dependency_generator 0"
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    cat <
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Provides:         kernel-modules >= ${verrel}${dotvariant}
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Provides:         kernel${dashvariant}-modules >= ${verrel}
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Provides:         ${kmod_name}-kmod = %{?epoch:%{epoch}:}%{version}-%{release}
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Requires(post):   /usr/sbin/depmod
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Requires(postun): /usr/sbin/depmod
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Requires(post):   /usr/sbin/weak-modules
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Requires(postun): /usr/sbin/weak-modules
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EOF
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    if [ "yes" != "$nobuildreqs" ]
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    then
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        cat <
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BuildRequires:    kernel${dashvariant}-devel
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BuildRequires:    kernel-abi-whitelists
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BuildRequires:    redhat-rpm-config kernel-rpm-macros
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BuildRequires:    elfutils-libelf-devel kmod
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EOF
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    fi
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    if [ "" != "$override_preamble" ]
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    then
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        cat "$override_preamble"
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    fi
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cat <
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%description   -n kmod-${kmod_name}${dashvariant}
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This package provides the ${kmod_name} kernel modules built for
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the Linux kernel ${verrel}${dotvariant} for the %{_target_cpu}
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family of processors.
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EOF
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##############################################################################
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## The following are not part of this script directly, they are scripts     ##
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## that will be executed by RPM during various stages of package processing ##
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##############################################################################
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cat <
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%post          -n kmod-${kmod_name}${dashvariant}
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if [ -e "/boot/System.map-${verrel}${dotvariant}" ]; then
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    /usr/sbin/depmod -aeF "/boot/System.map-${verrel}${dotvariant}" "${verrel}${dotvariant}" > /dev/null || :
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fi
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modules=( \$(find /lib/modules/${verrel}${dotvariant}/extra/${kmod_name} | grep '\.ko$') )
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if [ -x "/usr/sbin/weak-modules" ]; then
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    printf '%s\n' "\${modules[@]}" \
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    | /usr/sbin/weak-modules --add-modules
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fi
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EOF
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cat <
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%preun         -n kmod-${kmod_name}${dashvariant}
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rpm -ql kmod-${kmod_name}${dashvariant}-%{kmod_version}-%{kmod_release}.$(arch) | grep '\.ko$' > /var/run/rpm-kmod-${kmod_name}${dashvariant}-modules
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EOF
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cat <
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%postun        -n kmod-${kmod_name}${dashvariant}
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if [ -e "/boot/System.map-${verrel}${dotvariant}" ]; then
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    /usr/sbin/depmod -aeF "/boot/System.map-${verrel}${dotvariant}" "${verrel}${dotvariant}" > /dev/null || :
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fi
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modules=( \$(cat /var/run/rpm-kmod-${kmod_name}${dashvariant}-modules) )
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rm /var/run/rpm-kmod-${kmod_name}${dashvariant}-modules
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if [ -x "/usr/sbin/weak-modules" ]; then
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    printf '%s\n' "\${modules[@]}" \
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    | /usr/sbin/weak-modules --remove-modules
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fi
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EOF
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echo "%files         -n kmod-${kmod_name}${dashvariant}"
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if [ "" == "$override_filelist" ];
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then
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    echo "%defattr(644,root,root,755)"
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    echo "/lib/modules/${verrel}${dotvariant}"
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else
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    cat "$override_filelist" | get_filelist
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fi
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}
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print_rpmtemplate ()
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{
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  kmod_name="${1}"
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  shift
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  kver="${1}"
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  get_verrel "${1}"
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  shift
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  if [ -z "${kmod_name}" ] ; then
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    echo "Please provide the kmodule-name as first parameter." >&2
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    exit 2
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  elif [ -z "${kver}" ] ; then
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    echo "Please provide the kver as second parameter." >&2
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    exit 2
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  elif [ -z "${verrel}" ] ; then
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    echo "Couldn't find out the verrel." >&2
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    exit 2
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  fi
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  for variant in "$@" ; do
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      if [ "default" == "$variant" ];
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      then
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            get_rpmtemplate ""
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      else
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            get_rpmtemplate "${variant}"
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      fi
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  done
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}
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usage ()
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{
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  cat <
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You called: ${invocation}
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Usage: ${myprog} <command> <option>+
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 Commands:
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  verrel <uname>
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    - Get "base" version-release.
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  variant <uname>
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    - Get variant from uname.
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  variant_char <uname> <variant>
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    - Get kernel variant separator character.
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  kernel_source <uname> <variant>
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    - Get path to kernel source directory.
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  rpmtemplate <mainpgkname> <uname> <variants>
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    - Return a template for use in a source RPM
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  version
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    - Output version number and exit.
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EOF
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}
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invocation="$(basename ${0}) $@"
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while [ "${1}" ] ; do
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  case "${1}" in
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    verrel)
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      shift
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      print_verrel "$@"
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      exit $?
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      ;;
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    variant)
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      shift
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      print_variant "$@"
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      exit $?
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      ;;
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    variant_char)
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      shift
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      print_variant_char "$@"
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      exit $?
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      ;;
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    kernel_source)
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      shift
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      print_kernel_source "$@"
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      exit $?
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      ;;
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    rpmtemplate)
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      shift
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      print_rpmtemplate "$@"
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      exit $?
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      ;;
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    version)
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      echo "${myprog} ${myver}"
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      exit 0
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      ;;
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    *)
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      echo "Error: Unknown option '${1}'." >&2
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      usage >&2
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      exit 2
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      ;;
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  esac
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done
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# Local variables:
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# mode: sh
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# sh-indentation: 2
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# indent-tabs-mode: nil
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# End:
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# ex: ts=2 sw=2 et