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server-kernel/PKGBUILD

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#!/bin/bash
# shellcheck disable=SC2034 disable=SC2154 disable=SC2155 disable=SC2048 disable=SC2086 disable=SC2295
# ^^^^^ These have been deliberately disabled throughout this entire PKGBUILD, please don't remove them :)
# Maintainer: JeremyStarTM <jeremystartm@staropensource.de>
# Maintainer: Josip Ponjavic <josipponjavic at gmail dot com>
### BUILD OPTIONS
# Set to anything but null to activate
# Tweak kernel options prior to a build via nconfig
: "${_makenconfig:=""}"
# Set to anything but null to activate
# Tweak kernel options prior to a build via xconfig
: "${_makexconfig:=""}"
# Set to anything but null to activate
# Copies the final kernel configuration before building
: "${_copyfinalconfig:=""}"
# Set to anything but null to activate
# Only compile active modules to VASTLY reduce the number of modules built and
# the build time.
#
# To keep track of which modules are needed for your specific system/hardware,
# give module_db a try: https://aur.archlinux.org/packages/modprobed-db
# This PKGBUILD reads the database kept if it exists
#
# More at this wiki page ---> https://wiki.archlinux.org/index.php/Modprobed-db
: "${_localmodcfg:=""}"
# Optionally select a sub architecture by number or leave blank which will
# require user interaction during the build. Note that the generic (default)
# option is 40.
#
# 1. AMD Opteron/Athlon64/Hammer/K8 (MK8)
# 2. AMD Opteron/Athlon64/Hammer/K8 with SSE3 (MK8SSE3)
# 3. AMD 61xx/7x50/PhenomX3/X4/II/K10 (MK10)
# 4. AMD Barcelona (MBARCELONA)
# 5. AMD Bobcat (MBOBCAT)
# 6. AMD Jaguar (MJAGUAR)
# 7. AMD Bulldozer (MBULLDOZER)
# 8. AMD Piledriver (MPILEDRIVER)
# 9. AMD Steamroller (MSTEAMROLLER)
# 10. AMD Excavator (MEXCAVATOR)
# 11. AMD Zen (MZEN)
# 12. AMD Zen 2 (MZEN2)
# 13. AMD Zen 3 (MZEN3)
# 14. AMD Zen 4 (MZEN4)
# 15. Intel P4 / older Netburst based Xeon (MPSC)
# 16. Intel Core 2 (MCORE2)
# 17. Intel Atom (MATOM)
# 18. Intel Nehalem (MNEHALEM)
# 19. Intel Westmere (MWESTMERE)
# 20. Intel Silvermont (MSILVERMONT)
# 21. Intel Goldmont (MGOLDMONT)
# 22. Intel Goldmont Plus (MGOLDMONTPLUS)
# 23. Intel Sandy Bridge (MSANDYBRIDGE)
# 24. Intel Ivy Bridge (MIVYBRIDGE)
# 25. Intel Haswell (MHASWELL)
# 26. Intel Broadwell (MBROADWELL)
# 27. Intel Skylake (MSKYLAKE)
# 28. Intel Skylake X (MSKYLAKEX)
# 29. Intel Cannon Lake (MCANNONLAKE)
# 30. Intel Ice Lake (MICELAKE)
# 31. Intel Cascade Lake (MCASCADELAKE)
# 32. Intel Cooper Lake (MCOOPERLAKE)
# 33. Intel Tiger Lake (MTIGERLAKE)
# 34. Intel Sapphire Rapids (MSAPPHIRERAPIDS)
# 35. Intel Rocket Lake (MROCKETLAKE)
# 36. Intel Alder Lake (MALDERLAKE)
# 37. Intel Raptor Lake (MRAPTORLAKE)
# 38. Intel Meteor Lake (MMETEORLAKE)
# 39. Intel Emerald Rapids (MEMERALDRAPIDS)
# 40. Generic-x86-64 (GENERIC_CPU)
# 41. Generic-x86-64-v2 (GENERIC_CPU2)
# 42. Generic-x86-64-v3 (GENERIC_CPU3)
# 43. Generic-x86-64-v4 (GENERIC_CPU4)
# 44. Intel-Native optimizations autodetected by the compiler (MNATIVE_INTEL)
# 45. AMD-Native optimizations autodetected by the compiler (MNATIVE_AMD)
: "${_subarch:=""}"
# Enable compiling with LLVM
# Be warned: This is untested
: "${_use_llvm_lto:=""}"
# Enable/Disable debug options
# Set 'y' to enable, 'n' to force disable debug options if already enabled in your
# .config file or leave empty to ignore debug options.
: "${_debug:=""}"
### BUILD OPTIONS END
_serverkernel_version=sk1
_kerneloptimized_version=ko2
_kernel_major=6.7
_kernel_minor=9
_gcc_more_v='20240221.2'
_srcname_linux=linux-${_kernel_major}
_srcname_clpatches=${_kernel_major}.8-1413
pkgbase=linux-server-kernel
pkgver=linux${_kernel_major}.${_kernel_minor}+clear${_srcname_clpatches//-/_}+${_kerneloptimized_version}+${_serverkernel_version}
pkgrel=1
pkgdesc="Optimized Linux kernel. Includes Clear Linux's kernel config and some tweaks made by StarOpenSource and upstream (JeremyStarTM)."
arch=('x86_64')
url="https://git.staropensource.de/StarOpenSource/server-kernel"
license=('GPL2')
makedepends=('bc' 'cpio' 'git' 'libelf' 'pahole' 'xmlto')
if [ -n "$_use_llvm_lto" ]; then
makedepends+=(clang llvm lld python)
fi
options=('!strip')
source=(
"https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-${_kernel_major}.tar.xz"
"https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-${_kernel_major}.tar.sign"
"https://cdn.kernel.org/pub/linux/kernel/v6.x/patch-${_kernel_major}.${_kernel_minor}.xz"
"cl-linux::git+https://github.com/clearlinux-pkgs/linux.git#tag=${_srcname_clpatches}"
"more-uarches-$_gcc_more_v.tar.gz::https://github.com/graysky2/kernel_compiler_patch/archive/$_gcc_more_v.tar.gz"
)
if [ -n "$_use_llvm_lto" ]; then
BUILD_FLAGS=(
LLVM=1
LLVM_IAS=1
)
fi
export KBUILD_BUILD_HOST=archlinux
export KBUILD_BUILD_USER=$pkgbase
export KBUILD_BUILD_TIMESTAMP="$(date -Ru${SOURCE_DATE_EPOCH:+d @$SOURCE_DATE_EPOCH})"
prepare() {
echo ":: prepare: prepare() called"
echo ":: prepare: cding into \"${_srcname_linux}\""
cd "${_srcname_linux}" || exit 1
### Add upstream patches
echo ":: prepare: adding upstream patches"
patch -Np1 -i ../patch-${_kernel_major}.${_kernel_minor} || true
### Setting version
echo ":: prepare: updating version"
echo "-$pkgrel" > localversion.10-pkgrel
echo "${pkgbase#linux}" > localversion.20-pkgname
### Add Clear Linux patches
echo ":: prepare: patching kernel with Clear Linux patches"
# shellcheck disable=SC2013
for i in $(grep '^Patch' "${srcdir}"/cl-linux/linux.spec | grep -Ev '^Patch0132|^Patch0118|^Patch0113|^Patch0138|^Patch0139' | sed -n 's/.*: //p'); do
if [ -n "$_use_llvm_lto" ]; then
if [ "${i}" == "0162-extra-optmization-flags.patch" ] ; then
continue
fi
fi
echo ":: prepare: applying patch ${i}..."
patch -Np1 -i "$srcdir/cl-linux/${i}" || true
done
### Copy config
echo ":: prepare: copying kernel-optimized kconfig into kernel repository"
cp -Tf "${startdir}/kconfig" ./.config
if [ -n "$_use_llvm_lto" ]; then
echo ":: prepare: enabling LLVM support"
scripts/config -d LTO_NONE \
-e LTO \
-e LTO_CLANG \
-e ARCH_SUPPORTS_LTO_CLANG \
-e ARCH_SUPPORTS_LTO_CLANG_THIN \
-e HAS_LTO_CLANG \
-e LTO_CLANG_THIN \
-e HAVE_GCC_PLUGINS
fi
if [ "$_debug" == "y" ]; then
echo ":: prepare: enabling debugging features"
scripts/config -e DEBUG_INFO \
-e DEBUG_INFO_BTF \
-e DEBUG_INFO_DWARF4 \
-e PAHOLE_HAS_SPLIT_BTF \
-e DEBUG_INFO_BTF_MODULES
elif [ "$_debug" == "n" ]; then
echo ":: prepare: disabling debugging features"
scripts/config -d DEBUG_INFO \
-d DEBUG_INFO_BTF \
-d DEBUG_INFO_DWARF4 \
-d PAHOLE_HAS_SPLIT_BTF \
-d DEBUG_INFO_BTF_MODULES
fi
echo ":: prepare: running olddefconfig"
make ${BUILD_FLAGS[*]} olddefconfig
diff -u $srcdir/cl-linux/config .config || :
# https://github.com/graysky2/kernel_compiler_patch
# make sure to apply after olddefconfig to allow the next section
echo ":: prepare: patching kernel with kernel_compiler_patch"
patch -Np1 -i "$srcdir/kernel_compiler_patch-$_gcc_more_v/more-uarches-for-kernel-6.1.79-6.8-rc3.patch"
if [ -n "$_subarch" ]; then
# user wants a subarch so apply choice defined above interactively via 'yes'
echo ":: prepare: selecting sub architecture (automatic)"
yes "$_subarch" | make ${BUILD_FLAGS[*]} oldconfig
else
# no subarch defined so allow user to pick one
echo ":: prepare: selecting sub architecture (intervention required)"
make ${BUILD_FLAGS[*]} oldconfig
fi
### Optionally load needed modules for the make localmodconfig
# See https://aur.archlinux.org/packages/modprobed-db
if [ -n "$_localmodcfg" ]; then
if [ -e "$HOME/.config/modprobed.db" ]; then
echo ":: prepare: executing localmodconfig"
make ${BUILD_FLAGS[*]} LSMOD=$HOME/.config/modprobed.db localmodconfig
else
echo ":: prepare: error: no modprobed.db found at \"${HOME}/.config/modprobed.db\", skipping"
fi
fi
echo ":: prepare: writing kernel version"
make -s kernelrelease > version
[[ -z "$_makexconfig" ]] || (
echo ":: prepare: executing xconfig"
make ${BUILD_FLAGS[*]} xconfig
)
[[ -z "$_makenconfig" ]] || (
echo ":: prepare: executing nconfig"
make ${BUILD_FLAGS[*]} nconfig
)
### Save configuration for later reuse
[[ -z "$_copyfinalconfig" ]] || (
echo ":: prepare: copying configuration file into kernel-optimized repository"
cp -Tf ./.config "${startdir}/kconfig-final"
)
echo ":: prepare: prepare() finished"
}
build() {
echo ":: build: build() called"
echo ":: build: cding into \"${_srcname_linux}\""
cd "${_srcname_linux}" || exit 1
echo ":: build: starting compilation (make ${BUILD_FLAGS[*]} all)"
make ${BUILD_FLAGS[*]} all
echo ":: build: build() finished"
}
_package() {
echo ":: _package: _package() called"
echo ":: _package: updating package information"
pkgdesc="${pkgdesc} This package includes the kernel and compiled modules."
depends=('coreutils' 'kmod' 'initramfs')
optdepends=('wireless-regdb: 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')
provides=(VIRTUALBOX-GUEST-MODULES WIREGUARD-MODULE KSMBD-MODULE)
install=linux.install
echo ":: _package: cding into \"${_srcname_linux}\""
cd "$_srcname_linux" || exit 1
local modulesdir="$pkgdir/usr/lib/modules/$(<version)"
echo ":: _package: 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 ":: _package: installing modules"
ZSTD_CLEVEL=19 make ${BUILD_FLAGS[*]} INSTALL_MOD_PATH="$pkgdir/usr" INSTALL_MOD_STRIP=1 \
DEPMOD=/doesnt/exist modules_install # Suppress depmod
# remove build link
rm "$modulesdir"/build
echo ":: _package: _package() finished"
}
_package-headers() {
echo ":: _package-headers: _package-headers() called"
echo ":: _package-headers: updating package information"
pkgdesc="${pkgdesc} This package includes various headers and scripts for building modules."
depends=(pahole)
echo ":: _package-headers: cding into \"${_srcname_linux}\""
cd "${_srcname_linux}" || exit 1
local builddir="$pkgdir/usr/lib/modules/$(<version)/build"
echo ":: _package-headers: 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
# required when STACK_VALIDATION is enabled
install -Dt "$builddir/tools/objtool" tools/objtool/objtool
# required when DEBUG_INFO_BTF_MODULES is enabled
if [ -f tools/bpf/resolve_btfids/resolve_btfids ]; then
install -Dt "$builddir/tools/bpf/resolve_btfids" tools/bpf/resolve_btfids/resolve_btfids
fi
echo ":: _package-headers: 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 "$builddir/net/mac80211" -m644 net/mac80211/*.h
# https://bugs.archlinux.org/task/13146
install -Dt "$builddir/drivers/media/i2c" -m644 drivers/media/i2c/msp3400-driver.h
# https://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 "$builddir/drivers/media/tuners" -m644 drivers/media/tuners/*.h
# https://bugs.archlinux.org/task/71392
install -Dt "$builddir/drivers/iio/common/hid-sensors" -m644 drivers/iio/common/hid-sensors/*.h
echo ":: _package-headers: installing KConfig files"
find . -name 'Kconfig*' -exec install -Dm644 {} "$builddir/{}" \;
echo ":: _package-headers: removing unneeded architectures"
local arch
for arch in "$builddir"/arch/*/; do
[[ $arch = */x86/ ]] && continue
echo "Removing $(basename "$arch")"
rm -r "$arch"
done
echo ":: _package-headers: removing documentation"
rm -r "$builddir/Documentation"
echo ":: _package-headers: removing broken symlinks"
find -L "$builddir" -type l -printf 'Removing %P\n' -delete
echo ":: _package-headers: removing loose objects"
find "$builddir" -type f -name '*.o' -printf 'Removing %P\n' -delete
echo ":: _package-headers: stripping build tools"
local file
while read -rd '' file; do
case "$(file -Sib "$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 ":: _package-headers: stripping vmlinux"
strip -v $STRIP_STATIC "$builddir/vmlinux"
echo ":: _package-headers: adding symlink"
mkdir -p "$pkgdir/usr/src"
ln -sr "$builddir" "$pkgdir/usr/src/$pkgbase"
echo ":: _package-headers: _package-headers() finished"
}
pkgname=("$pkgbase" "$pkgbase-headers")
for _p in "${pkgname[@]}"; do
eval "package_$_p() {
$(declare -f "_package${_p#$pkgbase}")
_package${_p#$pkgbase}
}"
done
sha256sums=('ef31144a2576d080d8c31698e83ec9f66bf97c677fa2aaf0d5bbb9f3345b1069'
'SKIP'
'e7562c6344c936de81e49e8613d4ac1be5f8941332e4dcf58caab8591c10f8c1'
'SKIP'
'1d3ac3e581cbc5108f882fcdc75d74f7f069654c71bad65febe5ba15a7a3a14f')
validpgpkeys=(
'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linus Torvalds
'647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman
)