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# Maintainer: Leonidas Spyropoulos <artafinde AT gmail DOT com>
# Credit to graysky for shamelessly copying PKGBUILD from linux-ck
### BUILD OPTIONS
# Set these variables to ANYTHING that is not null to enable them
# Tweak kernel options prior to a build via nconfig
_makenconfig=
# NUMA is optimized for multi-socket motherboards. A single multi-core CPU can
# actually run slower with NUMA enabled. Most users will want to set this option
# to enabled ... in other words, do not use NUMA on a single CPU system.
#
# It has been reported that users of CUDA require NUMA to be enabled, therefore
# if you require CUDA support, be sure the variable below is set to a null
# See: https://bbs.archlinux.org/viewtopic.php?id=239174
_NUMAdisable=
# Compile ONLY probed modules
# As of mainline 2.6.32, running with this option will only build the modules
# that you currently have probed in your system VASTLY reducing the number of
# modules built and the build time to do it.
#
# WARNING - ALL modules must be probed BEFORE you begin making the pkg!
#
# 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 will call it directly to probe all the modules you have logged!
#
# More at this wiki page ---> https://wiki.archlinux.org/index.php/Modprobed-db
_localmodcfg=
### IMPORTANT: Do no edit below this line unless you know what you're doing
pkgbase=linux-gc
_srcver=4.19.4-arch1
pkgver=${_srcver%-*}
pkgrel=1
_pdsversion=099e
arch=(x86_64)
url="https://cchalpha.blogspot.co.uk/"
license=(GPL2)
makedepends=(xmlto kmod inetutils bc libelf git python-sphinx graphviz)
options=('!strip')
_srcname=linux-$_srcver
_psd_patch="v4.19_pds${_pdsversion}.patch"
_gcc_more_v='20180509'
source=(
"$_srcname.tar.gz::https://git.archlinux.org/linux.git/snapshot/linux-$_srcver.tar.gz"
config # the main kernel config file
60-linux.hook # pacman hook for depmod
90-linux.hook # pacman hook for initramfs regeneration
linux.preset # standard config files for mkinitcpio ramdisk
"enable_additional_cpu_optimizations-$_gcc_more_v.tar.gz::https://github.com/graysky2/kernel_gcc_patch/archive/$_gcc_more_v.tar.gz" # enable_additional_cpu_optimizations_for_gcc
"$_psd_patch::https://gitlab.com/alfredchen/PDS-mq/raw/master/4.19/${_psd_patch}"
)
validpgpkeys=(
'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linus Torvalds
'647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman
'8218F88849AAC522E94CF470A5E9288C4FA415FA' # Jan Alexander Steffens (heftig)
)
sha256sums=('26e9ff5f256eb775241b4cfae88a6fefe95de09c39a875fcee874dbb114e5895'
'fdb0aff5728261d6121ca29a0458b3a179d395c4e7deca6b3595b427044fd857'
'ae2e95db94ef7176207c690224169594d49445e04249d2499e9d2fbc117a0b21'
'75f99f5239e03238f88d1a834c50043ec32b1dc568f2cc291b07d04718483919'
'ad6344badc91ad0630caacde83f7f9b97276f80d26a20619a87952be65492c65'
'226e30068ea0fecdb22f337391385701996bfbdba37cdcf0f1dbf55f1080542d'
'648711f29f5dbeb7586e32de0831c445a7cf441245aa3a5a187d20e5a0587bc9')
_kernelname=${pkgbase#linux}
: ${_kernelname:=-gc}
prepare() {
cd $_srcname
msg2 "Setting version..."
scripts/setlocalversion --save-scmversion
echo "-$pkgrel" > localversion.10-pkgrel
echo "$_kernelname" > localversion.20-pkgname
local src
for src in "${source[@]}"; do
src="${src%%::*}"
src="${src##*/}"
[[ $src = *.patch ]] || continue
msg2 "Applying patch $src..."
patch -Np1 < "../$src"
done
msg2 "Setting config..."
cp ../config .config
### Optionally disable NUMA
if [ -n "$_NUMAdisable" ]; then
msg2 "Disabling NUMA from kernel config..."
sed -i -e 's/CONFIG_NUMA=y/# CONFIG_NUMA is not set/' \
-i -e '/CONFIG_AMD_NUMA=y/d' \
-i -e '/CONFIG_X86_64_ACPI_NUMA=y/d' \
-i -e '/CONFIG_NODES_SPAN_OTHER_NODES=y/d' \
-i -e '/# CONFIG_NUMA_EMU is not set/d' \
-i -e '/CONFIG_NODES_SHIFT=6/d' \
-i -e '/CONFIG_NEED_MULTIPLE_NODES=y/d' \
-i -e '/# CONFIG_MOVABLE_NODE is not set/d' \
-i -e '/CONFIG_USE_PERCPU_NUMA_NODE_ID=y/d' \
-i -e '/CONFIG_ACPI_NUMA=y/d' ./.config
fi
# https://github.com/graysky2/kernel_gcc_patch
msg2 "Patching to enabled additional gcc CPU optimizatons..."
patch -Np1 -i "$srcdir/kernel_gcc_patch-$_gcc_more_v/enable_additional_cpu_optimizations_for_gcc_v8.1+_kernel_v4.13+.patch"
make prepare
### Optionally load needed modules for the make localmodconfig
# See https://aur.archlinux.org/packages/modprobed-db
if [ -n "$_localmodcfg" ]; then
if [ -e /usr/bin/modprobed-db ]; then
msg "Modprobed-db installed, running Steven Rostedt's make localmodconfig with modprobed as input"
make LSMOD=$HOME/.config/modprobed.db localmodconfig
else
msg "Running Steven Rostedt's make localmodconfig now"
make localmodconfig
fi
fi
# do not run `make olddefconfig` as it sets default options
yes "" | make config >/dev/null
make -s kernelrelease > ../version
msg2 "Prepared %s version %s" "$pkgbase" "$(<../version)"
[[ -z "$_makenconfig" ]] || make nconfig
# save configuration for later reuse
cat .config > "${startdir}/config.last"
}
build() {
cd $_srcname
make bzImage modules
}
_package() {
pkgdesc="The ${pkgbase/linux/Linux} kernel and modules with the PDS-mq CPU scheduler"
depends=(coreutils linux-firmware kmod mkinitcpio)
optdepends=('crda: to set the correct wireless channels of your country')
provides=("linux-gc=${pkgver}")
backup=("etc/mkinitcpio.d/$pkgbase.preset")
install=linux.install
local kernver="$(<version)"
cd $_srcname
msg2 "Installing boot image..."
install -Dm644 "$(make -s image_name)" "$pkgdir/boot/vmlinuz-$pkgbase"
msg2 "Installing modules..."
local modulesdir="$pkgdir/usr/lib/modules/$kernver"
mkdir -p "$modulesdir"
make INSTALL_MOD_PATH="$pkgdir/usr" modules_install
# a place for external modules,
# with version file for building modules and running depmod from hook
local extramodules="extramodules$_kernelname"
local extradir="$pkgdir/usr/lib/modules/$extramodules"
install -Dt "$extradir" -m644 ../version
ln -sr "$extradir" "$modulesdir/extramodules"
# remove build and source links
rm "$modulesdir"/{source,build}
msg2 "Installing hooks..."
# sed expression for following substitutions
local subst="
s|%PKGBASE%|$pkgbase|g
s|%KERNVER%|$kernver|g
s|%EXTRAMODULES%|$extramodules|g
"
# hack to allow specifying an initially nonexisting install file
sed "$subst" "$startdir/$install" > "$startdir/$install.pkg"
true && install=$install.pkg
# fill in mkinitcpio preset and pacman hooks
sed "$subst" ../linux.preset | install -Dm644 /dev/stdin \
"$pkgdir/etc/mkinitcpio.d/$pkgbase.preset"
sed "$subst" ../60-linux.hook | install -Dm644 /dev/stdin \
"$pkgdir/usr/share/libalpm/hooks/60-$pkgbase.hook"
sed "$subst" ../90-linux.hook | install -Dm644 /dev/stdin \
"$pkgdir/usr/share/libalpm/hooks/90-$pkgbase.hook"
msg2 "Fixing permissions..."
chmod -Rc u=rwX,go=rX "$pkgdir"
}
_package-headers() {
pkgdesc="Header files and scripts for building modules for ${pkgbase/linux/Linux} kernel"
depends=('linux-gc')
provides=("linux-gc-headers=${pkgver}" "linux-headers=${pkgver}")
local builddir="$pkgdir/usr/lib/modules/$(<version)/build"
cd $_srcname
msg2 "Installing build files..."
install -Dt "$builddir" -m644 Makefile .config Module.symvers System.map 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 "$builddir"/{fs/xfs,mm}
# ???
mkdir "$builddir/.tmp_versions"
msg2 "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 "$builddir/drivers/media/tuners" -m644 drivers/media/tuners/*.h
msg2 "Installing KConfig files..."
find . -name 'Kconfig*' -exec install -Dm644 {} "$builddir/{}" \;
msg2 "Removing unneeded architectures..."
local arch
for arch in "$builddir"/arch/*/; do
[[ $arch = */x86/ ]] && continue
echo "Removing $(basename "$arch")"
rm -r "$arch"
done
msg2 "Removing documentation..."
rm -r "$builddir/Documentation"
msg2 "Removing broken symlinks..."
find -L "$builddir" -type l -printf 'Removing %P\n' -delete
msg2 "Removing loose objects..."
find "$builddir" -type f -name '*.o' -printf 'Removing %P\n' -delete
msg2 "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 "$builddir" -type f -perm -u+x ! -name vmlinux -print0)
msg2 "Adding symlink..."
mkdir -p "$pkgdir/usr/src"
ln -sr "$builddir" "$pkgdir/usr/src/$pkgbase-$pkgver"
msg2 "Fixing permissions..."
chmod -Rc u=rwX,go=rX "$pkgdir"
}
pkgname=("$pkgbase" "$pkgbase-headers")
for _p in "${pkgname[@]}"; do
eval "package_$_p() {
$(declare -f "_package${_p#$pkgbase}")
_package${_p#$pkgbase}
}"
done
# vim:set ts=8 sts=2 sw=2 et:
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