152 lines
4.3 KiB
Bash
Executable File
152 lines
4.3 KiB
Bash
Executable File
#! /bin/bash
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## package name
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custom_name=linux-lts-native
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## gcc optimization parameters
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gcc_patch_version=20190714
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gcc_patch_filename="enable_additional_cpu_optimizations_for_gcc_v9.1+_kernel_v4.13+.patch"
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gcc_patch_src='enable_additional_cpu_optimizations-$_gcc_more_v.tar.gz::https://github.com\/graysky2/kernel_gcc_patch/archive/$_gcc_more_v.tar.gz'
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gcc_patch_msg='msg "Applying Additional GCC Optimizations Patch"'
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gcc_patch_apply="patch -Np1 -i \"\$srcdir/kernel_gcc_patch-\$_gcc_more_v/$gcc_patch_filename\""
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repo_dir=packages/linux-lts/repos/core-x86_64
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build_dir=.build
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build_file="$build_dir/PKGBUILD"
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hist_dir=config-history
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makepkg_dir=$(sed -n 's/^BUILDDIR=\(.*\)/\1/p' /etc/makepkg.conf)
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help="$(basename "$0") [-o] [-c] [-h]
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Natively builds the latest version of the linux-lts kernel with
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graysky's GCC patch and my own config.
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Options:
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-o: use current package build files regardless of newer versions
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-c: launch make nconfig during build
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-h: show this"
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get_latest_config() {
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echo "$hist_dir/$(ls -Art "$hist_dir" | tail -n 1)"
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}
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back_up_config() {
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# pull old config if it exists and is not the most recent
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if [ -e "$build_file" ]; then
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echo "checking for old config file"
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source "$build_file" # get pkgver
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# copy from the tmp dir if this is what makepkg is configured to do
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if [[ "$makepkg_dir" == "" ]]; then
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oldconf="$build_dir/src/linux-$pkgver/.config"
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else
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oldconf="$makepkg_dir/linux-lts-native/src/linux-$pkgver/.config"
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fi
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if [ -e "$oldconf" ]; then
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echo "found old config"
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oldsum=$(md5sum "$oldconf" | awk '{print $1}')
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newsum=$(md5sum "$(get_latest_config)" | awk '{print $1}')
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if [ "$oldsum" != "$newsum" ]; then
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echo "copying old config to $hist_dir"
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cp "$oldconf" "$hist_dir/.config-$(date +%Y%m%d%H%M)"
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else
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echo "config file up to date. nothing to back up"
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fi
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fi
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fi
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}
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update_build() {
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if [ -z "$old_build" ]; then
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## update repo tree
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if [ ! -e packages ]; then
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echo Retrieving package tree
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svn checkout --depth=empty svn://svn.archlinux.org/packages
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fi
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## update linux-lts repo
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echo Updating linux-lts package
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cd packages || exit
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svn update linux-lts
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cd ..
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rm -rf $build_dir
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cp -r "$repo_dir" "$build_dir"
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## copy new config
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latest_conf=$(get_latest_config)
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echo "copying conf: $latest_conf"
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cp "$latest_conf" "$build_dir/config"
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## use "make nconfig" if we ask for it (see sed cmd below)
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if [ -n "$do_config" ]; then
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make_config_cmds="make oldconfig\n make nconfig"
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else
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make_config_cmds="make oldconfig"
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fi
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## if "security patches is not found in prepare(), warn user
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## that the GCC patch won't be applied
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if ! grep 'Setting version...' "$build_file" > /dev/null; then
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echo "GCC patch not applied!!!"
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exit 1
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fi
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## modify the PKGBUILD
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## - change package name
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## - change kernelname
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## - unindent custom name
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## - add gcc path version variable
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## - add gcc path to sources
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## - add gcc patch command in prepare
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## - add make config commands
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## - delete docs build command
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## - delete package-docs
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## - remove package-docs from pkgname
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sed -i -e "s/pkgbase=.*/pkgbase=$custom_name/g" \
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-e "/^pkgrel=.*/a _gcc_more_v=\'$gcc_patch_version\'" \
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-e "s|source=(|source=($gcc_patch_src\n |" \
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-e "/localversion\.20-pkgname/d" \
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-e "/Setting version\.\.\./i \ \ $gcc_patch_msg\n\ \ $gcc_patch_apply\n" \
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-e "/^\s*make olddefconfig/a \ \ $make_config_cmds" \
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-e "s/\s*htmldocs//" \
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-e '/^_package-docs()\ {/,/^}/d' \
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-e 's/\s*"$pkgbase-docs"//' \
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"$build_file"
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updpkgsums "$build_file"
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fi
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}
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while getopts ":och" OPT; do
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case ${OPT} in
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o)
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old_build="true"
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;;
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c)
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do_config="true"
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;;
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h)
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echo "$help"
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exit 0
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;;
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\?)
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echo "$help"
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exit 0
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;;
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esac
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done
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update_build
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cd "$build_dir" || exit
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makepkg -s -r -f -i
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cd ..
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back_up_config
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