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# Maintainer: ptr1337 <admin@ptr1337.dev>
# Contributor: Piotr Gorski <lucjan.lucjanov@gmail.com>
# Contributor: Jan Alexander Steffens (heftig) <jan.steffens@gmail.com>
# Contributor: Tobias Powalowski <tpowa@archlinux.org>
# Contributor: Thomas Baechler <thomas@archlinux.org>
### BUILD OPTIONS
# Set these variables to ANYTHING that is not null to enable them
# NUMA is optimized for multi-socket motherboards.
# A single multi-core CPU actually runs slower with NUMA enabled.
# See, https://bugs.archlinux.org/task/31187
_NUMAdisable=y
_fsync=y
_futex2=y
### Set performance governor as default
_per_gov=y
### Disable Deadline I/O scheduler
_deadline_disable=y
### Disable Kyber I/O scheduler
_kyber_disable=y
### Running with a 1000 HZ, 750HZ or 500HZ tick rate
_2k_HZ_ticks=y
_1k_HZ_ticks=
_500_HZ_ticks=
### Tweak kernel options prior to a build via nconfig
_makenconfig=
### Tweak kernel options prior to a build via menuconfig
_makemenuconfig=
### Tweak kernel options prior to a build via xconfig
_makexconfig=
### Tweak kernel options prior to a build via gconfig
_makegconfig=
# Compile ONLY used modules to VASTLYreduce the number of modules built
# and the build time.
#
# To keep track of which modules are needed for your specific system/hardware,
# give module_db script a try: https://aur.archlinux.org/packages/modprobed-db
# This PKGBUILD read the database kept if it exists
#
# More at this wiki page ---> https://wiki.archlinux.org/index.php/Modprobed-db
_localmodcfg=
# Use the current kernel's .config file
# Enabling this option will use the .config of the RUNNING kernel rather than
# the ARCH defaults. Useful when the package gets updated and you already went
# through the trouble of customizing your config options. NOT recommended when
# a new kernel is released, but again, convenient for package bumps.
_use_current=
### IMPORTANT: Do no edit below this line unless you know what you're doing
pkgbase=linux-xanmod-cacule-rt
# pkgname=('linux-xanmod-cacule-rt' linux-xanmod-cacule-rt)
_major=5.11
_minor=12
#_minorc=$((_minor+1))
#_rcver=rc7
_rt=11
pkgver=${_major}.${_minor}
_stable=${_major}.${_minor}
#_stablerc=${_major}-${_rcver}
_srcname=linux-${_major}
pkgrel=4
pkgdesc='Linux XanMod CacULE RT'
versiontag=5.11.12-rt11-xanmod1
arch=('x86_64')
url="https://github.com/hamadmarri/cacule-cpu-scheduler"
license=('GPL2')
options=('!strip')
makedepends=('kmod' 'bc' 'libelf' 'python-sphinx' 'python-sphinx_rtd_theme'
'graphviz' 'imagemagick' 'pahole' 'cpio' 'perl' 'tar' 'xz')
_patchsource="https://raw.githubusercontent.com/ptr1337/linux-cacule-aur/master/patches/5.11"
source=("https://www.kernel.org/pub/linux/kernel/v5.x/linux-$_major.tar.xz"
"https://github.com/xanmod/linux/releases/download/$versiontag/patch-$versiontag.xz"
"${_patchsource}/cacule-patches/cacule-5.11-rt.patch")
sha512sums=('a567ec133018bb5ec00c60281479b466c26e02137a93a9c690e83997947df02b6fd94e76e8df748f6d70ceb58a19bacc3b1467de10b7a1fad2763db32b3f1330'
'c2aae46711064ac47b38bdd499f9957fd4b02d0e8866ae06b19012fed0ae1237db8613f935150982a5583af2e3a80102d2844ea37d9a6a6b96dacccbb61129c5'
'f86e2adfb382ce0b13c837091ce12a80580f5026772148db5a84c27621c70795dd571eebb58113b621f302aab916b84eb8b8ac32e76b34f21590cd672afff21e')
export KBUILD_BUILD_HOST=${KBUILD_BUILD_HOST:-archlinux}
export KBUILD_BUILD_USER=${KBUILD_BUILD_USER:-makepkg}
export KBUILD_BUILD_TIMESTAMP=${KBUILD_BUILD_TIMESTAMP:-$(date -Ru${SOURCE_DATE_EPOCH:+d @$SOURCE_DATE_EPOCH})}
prepare() {
cd $_srcname
# hacky work around for xz not getting extracted
# https://bbs.archlinux.org/viewtopic.php?id=265115
if [[ ! -f "$srcdir/patch-$versiontag" ]]; then
unlink "$srcdir/patch-$versiontag.xz"
xz -dc "$startdir/patch-$versiontag.xz" > "$srcdir/patch-$versiontag"
fi
# Apply Xanmod-RT patch
patch -Np1 -i ../patch-$versiontag
### Setting version
echo "Setting version..."
scripts/setlocalversion --save-scmversion
echo "-$pkgrel" > localversion.10-pkgrel
echo "${pkgbase#linux-xanmod}" > localversion.20-pkgname
### Patching sources
local src
for src in "${source[@]}"; do
src="${src%%::*}"
src="${src##*/}"
[[ $src = *.patch ]] || continue
echo "Applying patch $src..."
patch -Np1 < "../$src"
done
### Optionally use running kernel's config
# code originally by nous; http://aur.archlinux.org/packages.php?ID=40191
if [ -n "$_use_current" ]; then
if [[ -s /proc/config.gz ]]; then
echo "Extracting config from /proc/config.gz..."
# modprobe configs
zcat /proc/config.gz > ./.config
else
warning "Your kernel was not compiled with IKCONFIG_PROC!"
warning "You cannot read the current config!"
warning "Aborting!"
exit
fi
fi
source "${startdir}"/configure
cpu_arch
### Optionally set tickrate to 1000
if [ -n "$_2k_HZ_ticks" ]; then
echo "Setting tick rate to 1k..."
scripts/config --disable CONFIG_HZ_300
scripts/config --enable CONFIG_HZ_2000
scripts/config --set-val CONFIG_HZ 2000
fi
### Optionally set tickrate to 1000
if [ -n "$_1k_HZ_ticks" ]; then
echo "Setting tick rate to 1k..."
scripts/config --disable CONFIG_HZ_300
scripts/config --enable CONFIG_HZ_1000
scripts/config --set-val CONFIG_HZ 1000
fi
### Optionally set tickrate to 500HZ
if [ -n "$_500_HZ_ticks" ]; then
echo "Setting tick rate to 1k..."
scripts/config --disable CONFIG_HZ_300
scripts/config --enable CONFIG_HZ_500
scripts/config --set-val CONFIG_HZ 500
fi
### Optionally disable NUMA for 64-bit kernels only
# (x86 kernels do not support NUMA)
if [ -n "$_NUMAdisable" ]; then
echo "Disabling NUMA from kernel config..."
scripts/config --disable CONFIG_NUMA
fi
if [ -n "$_fsync" ]; then
echo "Enable Fsync support"
scripts/config --enable CONFIG_FUTEX
scripts/config --enable CONFIG_FUTEX_PI
fi
if [ -n "$_futex2" ]; then
echo "Enable Futex2 support"
scripts/config --enable CONFIG_FUTEX2
fi
### Set performance governor
if [ -n "$_per_gov" ]; then
echo "Setting performance governor..."
scripts/config --disable CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL
scripts/config --enable CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE
echo "Disabling uneeded governors..."
scripts/config --disable CONFIG_CPU_FREQ_GOV_ONDEMAND
scripts/config --disable CONFIG_CPU_FREQ_GOV_CONSERVATIVE
scripts/config --disable CONFIG_CPU_FREQ_GOV_USERSPACE
scripts/config --disable CONFIG_CPU_FREQ_GOV_SCHEDUTIL
fi
### Disable Deadline I/O scheduler
if [ -n "$_deadline_disable" ]; then
echo "Disabling Deadline I/O scheduler..."
scripts/config --disable CONFIG_MQ_IOSCHED_DEADLINE
fi
### Disable Kyber I/O scheduler
if [ -n "$_kyber_disable" ]; then
echo "Disabling Kyber I/O scheduler..."
scripts/config --disable CONFIG_MQ_IOSCHED_KYBER
fi
echo "Setting Cacule Config"
scripts/config --enable CONFIG_CACULE_SCHED
scripts/config --disable CONFIG_SCHED_DEBUG
scripts/config --disable CONFIG_SCHED_INFO
scripts/config --disable CONFIG_SCHEDSTATS
scripts/config --disable CONFIG_DEBUG_KERNEL
scripts/config --disable CONFIG_EXPERT
make olddefconfig
### Optionally load needed modules for the make localmodconfig
# See https://aur.archlinux.org/packages/modprobed-db
if [ -n "$_localmodcfg" ]; then
if [ -f $HOME/.config/modprobed.db ]; then
echo "Running Steven Rostedt's make localmodconfig now"
make LSMOD=$HOME/.config/modprobed.db localmodconfig
else
echo "No modprobed.db data found"
exit
fi
fi
make -s kernelrelease > version
msg2 "Prepared %s version %s" "$pkgbase" "$(<version)"
### Running make nconfig
[[ -z "$_makenconfig" ]] || make nconfig
### Running make menuconfig
[[ -z "$_makemenuconfig" ]] || make menuconfig
### Running make xconfig
[[ -z "$_makexconfig" ]] || make xconfig
### Running make gconfig
[[ -z "$_makegconfig" ]] || make gconfig
### Save configuration for later reuse
cat .config > "${startdir}/config.last"
}
build() {
cd $_srcname
make all
}
_package() {
pkgdesc="The $pkgdesc kernel and modules"
depends=('coreutils' 'kmod' 'initramfs')
optdepends=('crda: to set the correct wireless channels of your country'
'linux-firmware: firmware images needed for some devices'
'modprobed-db: Keeps track of EVERY kernel module that has ever been probed - useful for those of us who make localmodconfig')
cd $_srcname
local kernver="$(<version)"
local modulesdir="$pkgdir/usr/lib/modules/$kernver"
echo "Installing boot image..."
# systemd expects to find the kernel here to allow hibernation
# https://github.com/systemd/systemd/commit/edda44605f06a41fb86b7ab8128dcf99161d2344
install -Dm644 "$(make -s image_name)" "$modulesdir/vmlinuz"
# Used by mkinitcpio to name the kernel
echo "$pkgbase" | install -Dm644 /dev/stdin "$modulesdir/pkgbase"
echo "Installing modules..."
make INSTALL_MOD_PATH="$pkgdir/usr" INSTALL_MOD_STRIP=1 modules_install
# remove build and source links
rm "$modulesdir"/{source,build}
}
_package-headers() {
pkgdesc="Headers and scripts for building modules for the $pkgdesc kernel"
depends=('pahole')
cd $_srcname
local builddir="$pkgdir/usr/lib/modules/$(<version)/build"
echo "Installing build files..."
install -Dt "$builddir" -m644 .config Makefile Module.symvers System.map \
localversion.* version vmlinux
install -Dt "$builddir/kernel" -m644 kernel/Makefile
install -Dt "$builddir/arch/x86" -m644 arch/x86/Makefile
cp -t "$builddir" -a scripts
# add objtool for external module building and enabled VALIDATION_STACK option
install -Dt "$builddir/tools/objtool" tools/objtool/objtool
# add xfs and shmem for aufs building
mkdir -p "$builddir"/{fs/xfs,mm}
echo "Installing headers..."
cp -t "$builddir" -a include
cp -t "$builddir/arch/x86" -a arch/x86/include
install -Dt "$builddir/arch/x86/kernel" -m644 arch/x86/kernel/asm-offsets.s
install -Dt "$builddir/drivers/md" -m644 drivers/md/*.h
install -Dt "$builddir/net/mac80211" -m644 net/mac80211/*.h
# http://bugs.archlinux.org/task/13146
install -Dt "$builddir/drivers/media/i2c" -m644 drivers/media/i2c/msp3400-driver.h
# http://bugs.archlinux.org/task/20402
install -Dt "$builddir/drivers/media/usb/dvb-usb" -m644 drivers/media/usb/dvb-usb/*.h
install -Dt "$builddir/drivers/media/dvb-frontends" -m644 drivers/media/dvb-frontends/*.h
install -Dt "$builddir/drivers/media/tuners" -m644 drivers/media/tuners/*.h
echo "Installing KConfig files..."
find . -name 'Kconfig*' -exec install -Dm644 {} "$builddir/{}" \;
echo "Removing unneeded architectures..."
local arch
for arch in "$builddir"/arch/*/; do
[[ $arch = */x86/ ]] && continue
echo "Removing $(basename "$arch")"
rm -r "$arch"
done
echo "Removing documentation..."
rm -r "$builddir/Documentation"
echo "Removing broken symlinks..."
find -L "$builddir" -type l -printf 'Removing %P\n' -delete
echo "Removing loose objects..."
find "$builddir" -type f -name '*.o' -printf 'Removing %P\n' -delete
echo "Stripping build tools..."
local file
while read -rd '' file; do
case "$(file -bi "$file")" in
application/x-sharedlib\;*) # Libraries (.so)
strip -v $STRIP_SHARED "$file" ;;
application/x-archive\;*) # Libraries (.a)
strip -v $STRIP_STATIC "$file" ;;
application/x-executable\;*) # Binaries
strip -v $STRIP_BINARIES "$file" ;;
application/x-pie-executable\;*) # Relocatable binaries
strip -v $STRIP_SHARED "$file" ;;
esac
done < <(find "$builddir" -type f -perm -u+x ! -name vmlinux -print0)
echo "Stripping vmlinux..."
strip -v $STRIP_STATIC "$builddir/vmlinux"
echo "Adding symlink..."
mkdir -p "$pkgdir/usr/src"
ln -sr "$builddir" "$pkgdir/usr/src/$pkgbase"
}
pkgname=("$pkgbase" "$pkgbase-headers")
for _p in "${pkgname[@]}"; do
eval "package_$_p() {
$(declare -f "_package${_p#$pkgbase}")
_package${_p#$pkgbase}
}"
done
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