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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=
# 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=
### IMPORTANT: Do no edit below this line unless you know what you're doing
pkgbase=linux-gc
pkgver=5.6.5
pkgrel=1
pkgdesc='Linux'
url="https://cchalpha.blogspot.co.uk/"
arch=(x86_64)
license=(GPL2)
makedepends=(
bc kmod libelf
xmlto python-sphinx python-sphinx_rtd_theme graphviz imagemagick
git
)
options=('!strip')
_srcname=linux-${pkgver}
_bmqversion=5.6-r2
_bmq_patch="bmq_v${_bmqversion}.patch"
_gcc_more_v='20191217'
source=(
"https://www.kernel.org/pub/linux/kernel/v5.x/linux-$pkgver.tar".{xz,sign}
config # the main kernel config file
"${_bmq_patch}::https://gitlab.com/alfredchen/bmq/raw/master/${_bmqversion%-*}/${_bmq_patch}"
"enable_additional_cpu_optimizations-${_gcc_more_v}.tar.gz::https://github.com/graysky2/kernel_gcc_patch/archive/${_gcc_more_v}.tar.gz"
"0001-ZEN-Add-sysctl-and-CONFIG-to-disallow-unprivileged-C.patch::https://github.com/archlinux/linux/commit/31d4f0d32196b85f66945ed01b60ed1b55ee5f54.patch"
"0002-Revert-ACPI-EC-Do-not-clear-boot_ec_is_ecdt-in-acpi_.patch::https://github.com/archlinux/linux/commit/e5016d0b5460c3bed8f78033723ad22775db7725.patch"
"0003-drm-amdgpu-fix-the-hw-hang-during-perform-system-reb.patch::https://github.com/archlinux/linux/commit/1f8782c04f587b9e0901f7736c112814dd0dcc47.patch"
)
validpgpkeys=(
'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linus Torvalds
'647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman
'8218F88849AAC522E94CF470A5E9288C4FA415FA' # Jan Alexander Steffens (heftig)
)
sha256sums=('f79bd3dbcbe1e7afba256d59b4ca21da12d2c5b4189804dffb2a49fd2b9b52e6'
'SKIP'
'27b84575ea6b1050951906e0b595351fe3f8e39fab9d2ed05e32cb6eaddca08f'
'0e1b569bf16a6c514710715eff06df04447378d1c067b853db0c454ac3c5e463'
'7a4a209de815f4bae49c7c577c0584c77257e3953ac4324d2aa425859ba657f5'
'e8abbc772f3a9b3face6e8a75990f039022fb679d5d84f3813a291cc91fe828a'
'f4f9c8392eeb6bc4d29d7571f67a8b979099bee2a944c34b2b2413020f4ea02d'
'673fd2206a4ae18976908e85b6b7ee7b775896473ab7239930e639378808ec64')
_kernelname=${pkgbase#linux}
: ${_kernelname:=-gc}
export KBUILD_BUILD_HOST=archlinux
export KBUILD_BUILD_USER=$pkgbase
export KBUILD_BUILD_TIMESTAMP="$(date -Ru${SOURCE_DATE_EPOCH:+d @$SOURCE_DATE_EPOCH})"
prepare() {
cd $_srcname
echo "Setting version..."
scripts/setlocalversion --save-scmversion
echo "-$pkgrel" > localversion.10-pkgrel
echo "$_kernelname" > localversion.20-pkgname
local src
for src in "${source[@]}"; do
src="${src%%::*}"
src="${src##*/}"
[[ $src = 0*.patch ]] || continue
echo "Applying patch $src..."
patch -Np1 < "../$src"
done
echo "Applying patch ${_bmq_patch}..."
patch -Np1 -i "$srcdir/${_bmq_patch}"
echo "Setting config..."
cp ../config .config
# https://github.com/graysky2/kernel_gcc_patch
echo "Applying enable_additional_cpu_optimizations-${_gcc_more_v}..."
patch -Np1 -i "$srcdir/kernel_gcc_patch-$_gcc_more_v/enable_additional_cpu_optimizations_for_gcc_v9.1+_kernel_v5.5+.patch"
make prepare
### 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
# do not run `make olddefconfig` as it sets default options
yes "" | make config >/dev/null
make -s kernelrelease > version
echo "Prepared ${pkgbase} version $(<version)"
[[ -z "$_makenconfig" ]] || make nconfig
# save configuration for later reuse
cat .config > "${startdir}/config.last"
}
build() {
cd $_srcname
make all
}
_package() {
pkgdesc="The $pkgdesc kernel and modules with the BMQ CPU scheduler"
depends=(coreutils kmod initramfs)
optdepends=('crda: to set the correct wireless channels of your country'
'linux-firmware: firmware images needed for some devices')
provides=("linux-gc=${pkgver}")
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="$pkgdir/usr" modules_install
# remove build and source links
rm "$modulesdir"/{source,build}
echo "Fixing permissions..."
chmod -Rc u=rwX,go=rX "$pkgdir"
}
_package-headers() {
pkgdesc="Headers and scripts for building modules for the $pkgdesc kernel"
depends=('linux-gc')
provides=("linux-gc-headers=${pkgver}" "linux-headers=${pkgver}")
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 "$builddir" -type f -perm -u+x ! -name vmlinux -print0)
echo "Adding symlink..."
mkdir -p "$pkgdir/usr/src"
ln -sr "$builddir" "$pkgdir/usr/src/$pkgbase"
echo "Fixing permissions..."
chmod -Rc u=rwX,go=rX "$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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