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#!/usr/bin/env bash
# shellcheck disable=SC2034 disable=SC2048 disable=SC2086 disable=SC2154
# Maintainer: JeremyStarTM <jeremystartm@staropensource.de>
# Maintainer: Josip Ponjavic <josipponjavic at gmail dot com>
# Contributor: yarost12 <yaro330@gmail.com>
### BUILD OPTIONS
# You can modify these settings by
# executing "env _<setting>=<value> makepkg"
# instead of modifying the PKGBUILD file.
#
# Here's an example:
# env _makemenuconfig=y _copyfinalconfig=y _subarch=30 makepkg
# Tweak kernel options prior to a build
# via menuconfig.
#
# Set to anything but null to activate.
: "${_makemenuconfig:=""}"
# Tweak kernel options prior to a build
# via nconfig.
#
# Set to anything but null to activate.
: "${_makenconfig:=""}"
# Tweak kernel options prior to a build
# via xconfig.
#
# Set to anything but null to activate.
: "${_makexconfig:=""}"
# Use the current kernel's .config file
#
# Enabling this option will use the
# .config of the currently running kernel
# rather than the Clear Linux defaults.
#
# Useful when the package gets updated and
# you already went through the trouble of
# customizing your config options.
#
# NOT recommended when a new kernel is
# released, but again, convenient for
# package bumps.
#
# Takes effect before '_reuse_file'.
#
# Only takes effect if '_reuse_current'
# or '_reuse_file' is enabled. Keep
# disabled if you want to reuse your
# existing kernel configuration without
# any changes being applied on top.
#
# Set to anything but null to activate.
: "${_reuse_current:=""}"
# Use the 'kconfig' file placed in the
# directory where this PKGBUILD is in.
#
# Enabling this option will use the
# .config placed next to the PKGBUILD file.
#
# 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.
#
# Takes effect after '_reuse_current'.
#
# Only takes effect if '_reuse_current'
# or '_reuse_file' is enabled. Keep
# disabled if you want to reuse your
# existing kernel configuration without
# any changes being applied on top.
#
# Set to anything but null to activate.
: "${_reuse_file:=""}"
# Apply selected config changes chosen by
# the package maintainers to the config.
#
# Only takes effect if '_reuse_current'
# or '_reuse_file' is enabled. Keep
# disabled if you want to reuse your
# existing kernel configuration without
# any changes being applied on top.
#
# Set to anything but null to activate.
: "${_update_kconfig_on_reuse:=""}"
# Determines whether the final kernel
# configuration shall be copied into
# the package source tree (where this
# very PKGBUILD file lives) before
# compilation starts.
#
# Set to anything but null to activate.
: "${_copyfinalconfig:=""}"
# Only compile active modules to VASTLY
# reduce the number of modules built
# and the build time.
#
# To keep track of which modules are
# needed for your specific system/hardware,
# give modprobed-db a try:
# https://aur.archlinux.org/packages/modprobed-db
#
# More at this wiki page:
# https://wiki.archlinux.org/index.php/Modprobed-db
#
# Set to anything but null to activate.
: "${_localmodcfg:=""}"
# Optionally select a sub architecture
# by number or leave blank, which will
# require user interaction during the build.
# Note that the default option is 41.
#
# Requires '_update_kconfig_on_reuse_'
# to be enabled if using an existing
# kernel configuration.
#
# 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. AMD Zen 5 (MZEN5)
# 16. Intel P4 / older Netburst based Xeon (MPSC)
# 17. Intel Atom (MATOM)
# 18. Intel Core 2 (MCORE2)
# 19. Intel Nehalem (MNEHALEM)
# 20. Intel Westmere (MWESTMERE)
# 21. Intel Silvermont (MSILVERMONT)
# 22. Intel Goldmont (MGOLDMONT)
# 23. Intel Goldmont Plus (MGOLDMONTPLUS)
# 24. Intel Sandy Bridge (MSANDYBRIDGE)
# 25. Intel Ivy Bridge (MIVYBRIDGE)
# 26. Intel Haswell (MHASWELL)
# 27. Intel Broadwell (MBROADWELL)
# 28. Intel Skylake (MSKYLAKE)
# 29. Intel Skylake X (MSKYLAKEX)
# 30. Intel Cannon Lake (MCANNONLAKE)
# 31. Intel Ice Lake (MICELAKE)
# 32. Intel Cascade Lake (MCASCADELAKE)
# 33. Intel Cooper Lake (MCOOPERLAKE)
# 34. Intel Tiger Lake (MTIGERLAKE)
# 35. Intel Sapphire Rapids (MSAPPHIRERAPIDS)
# 36. Intel Rocket Lake (MROCKETLAKE)
# 37. Intel Alder Lake (MALDERLAKE)
# 38. Intel Raptor Lake (MRAPTORLAKE)
# 39. Intel Meteor Lake (MMETEORLAKE)
# 40. Intel Emerald Rapids (MEMERALDRAPIDS)
# 41. Generic-x86-64 (GENERIC_CPU)
# 42. Intel-Native optimizations autodetected by the compiler (MNATIVE_INTEL)
# 43. AMD-Native optimizations autodetected by the compiler (MNATIVE_AMD)
: "${_subarch:=""}"
# Selects the x86-64 microarchitecture
# to compile for. This value is only
# used by the GENERIC_CPU
# subarchitecture and is required.
# Can be either '1', '2', '3' or '4'
#
# For more information see:
# https://en.wikipedia.org/wiki/X86-64#Microarchitecture_levels
#
# Requires '_update_kconfig_on_reuse_'
# to be enabled if using an existing
# kernel configuration.
#
# Set to '1' by default
: "${_subarch_microarch:="1"}"
# Enables compilation with LLVM
#
# Be warned, this is largely untested
# by me (JeremyStarTM). It *should* work,
# but if it doesn't, write a comment
# and I'll write a fix for it.
#
# Requires '_update_kconfig_on_reuse_'
# to be enabled if using an existing
# kernel configuration.
#
# Set to anything but null to activate.
: "${_use_llvm_lto:=""}"
# This allows you to enable or disable
# debug options for THE COMPILED KERNEL.
#
# Leaving the setting empty will leave
# the debug settings up to the kernel
# configuration's settings.
#
# Requires '_update_kconfig_on_reuse_'
# to be enabled if using an existing
# kernel configuration.
#
# Set to 'y' to force enable,
# 'n' to force disable or '' to
# ignore debug options.
: "${_debug_kernel:=""}"
# This allows you to enable
# debug options for THIS SCRIPT.
#
# Set to anything but null to activate.
: "${_debug_script:=""}"
### BUILD OPTIONS END
# Kernel version
_kernel_major=6.12
_kernel_minor=6
# Clear Linux patches version
_clr=4-1518
# kernel_compiler_patch version
_kernelcompilerpatch="20241018"
# Source directory names
_src_linux=linux-${_kernel_major}
_src_clr=${_kernel_major}.${_clr}
# Package information
pkgbase=linux-clear
pkgver=${_kernel_major}.${_kernel_minor}
pkgrel=1
pkgdesc="Linux kernel with patches from Clear Linux which allow for higher performance."
arch=("x86_64")
url="https://git.staropensource.de/JeremyStarTM/aur-linux-clear"
license=(GPL-2.0-only)
makedepends=("bc" "cpio" "gettext" "git" "libelf" "pahole" "perl" "python" "tar" "xz" "zstd")
[[ -n "${_use_llvm_to}" ]] && makedepends+=("clang" "llvm" "lld")
options=("!strip" "!debug")
[[ "${_debug_kernel}" == "y" ]] && 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=${_src_clr}"
"more-uarches-${_kernelcompilerpatch}.tar.gz::https://github.com/graysky2/kernel_compiler_patch/archive/${_kernelcompilerpatch}.tar.gz"
)
[[ -n "${_use_llvm_lto}" ]] && BUILD_FLAGS=("LLVM=1" "LLVM_IAS=1")
export "KBUILD_BUILD_HOST=archlinux"
export "KBUILD_BUILD_USER=${pkgbase}"
export "KBUILD_BUILD_TIMESTAMP=$(date -Ru${SOURCE_DATE_EPOCH:+d @$SOURCE_DATE_EPOCH})"
# Debugging
_msg() {
echo -e ":: ${*}"
}
_warn() {
echo -e ":: WARNING: ${*//\\n/\\n }"
}
_error() {
echo -e ":: ERROR: ${*//\\n/\\n }"
}
_debug_msg() {
[ -n "${_debug_script}" ] && echo ":: debug: ${*}" || :
}
_debug_call() {
local function="${1}"
shift
local args="${*}"
_debug_msg "call: ${function}(${args})"
}
# Applies all patches
_apply_patches() {
_debug_call "_apply_patches"
# Patch with kernel version patches
patch -Np1 -i ../patch-${_kernel_major}.${_kernel_minor} || :
# Set version
echo "-${pkgrel}" > localversion.10-pkgrel
echo "${pkgbase#linux}" > localversion.20-pkgname
# Patch with Clear Linux patches
for i in $(grep '^Patch' "${srcdir}"/cl-linux/linux.spec|grep -Ev '^Patch0132|^Patch0109|^Patch0118|^Patch0113|^Patch0138|^Patch0139|^Patch0147' | sed -n 's/.*: //p'); do
if [ -n "${_use_llvm_lto}" ]; then
if [ "${i}" == "0133-novector.patch" ] ; then
continue
fi
fi
patch -Np1 -i "${srcdir}/cl-linux/${i}" || :
done
# Patch with kernel_compiler_patch patches.
# Do this before any defconfig invocations so we
# have all of the extra selectable uarches ready and selectable
patch -Np1 -i "$srcdir/kernel_compiler_patch-$_kernelcompilerpatch/more-ISA-levels-and-uarches-for-kernel-6.1.79+.patch"
}
# Updates the kernel config
_update_config() {
_debug_call "_update_config"
# Extra configuration
_debug_msg "Updating configuration"
# -> General setup
scripts/config --set-str DEFAULT_HOSTNAME archlinux \
-e IKCONFIG \
-e IKCONFIG_PROC \
-u RT_GROUP_SCHED
# -> Power management and ACPI options
scripts/config -e ACPI_REV_OVERRIDE_POSSIBLE \
-e ACPI_TABLE_UPGRADE
# -> Virtualization
scripts/config -e KVM_SMM
# -> General architecture-dependent options
scripts/config -e KPROBES
# -> Enable loadable module support
scripts/config -u MODULE_SIG_FORCE
# -> Networking support
scripts/config -e NETFILTER_INGRESS
# -> Device Drivers
scripts/config -e FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER \
-e DELL_SMBIOS_SMM \
-m PATA_JMICRON \
-E SOUND SOUND_OSS_CORE \
-e SND_OSSEMUL \
-M SND_OSSEMUL SND_MIXER_OSS \
-M SND_MIXER_OSS SND_PCM_OSS \
-E SND_PCM_OSS SND_PCM_OSS_PLUGINS \
-m AGP -M AGP AGP_INTEL -M AGP_INTEL AGP_VIA
# -> Kernel hacking -> Compile-time checks and compiler options -> Make section mismatch errors non-fatal
scripts/config -e SECTION_MISMATCH_WARN_ONLY
# -> File systems
scripts/config -m NTFS3_FS \
-e NTFS3_LZX_XPRESS \
-e NTFS3_FS_POSIX_ACL
scripts/config -m SMB_SERVER \
-e SMB_SERVER_SMBDIRECT \
-e SMB_SERVER_CHECK_CAP_NET_ADMIN \
-e SMB_SERVER_KERBEROS5
# -> Security options
scripts/config -e SECURITY_SELINUX \
-e SECURITY_SELINUX_BOOTPARAM \
-e SECURITY_SMACK \
-e SECURITY_SMACK_BRINGUP \
-e SECURITY_SMACK_NETFILTER \
-e SECURITY_SMACK_APPEND_SIGNALS \
-e SECURITY_TOMOYO \
-e SECURITY_APPARMOR \
-e SECURITY_YAMA
# -> Security options -> Landlock options
scripts/config -e SECURITY_LANDLOCK
# -> Library routines
scripts/config -k -e FONT_TER16x32
# -> Enable LLVM compilation
if [ -n "${_use_llvm_lto}" ]; then
_debug_msg "Enabling LLVM compilation"
scripts/config -d LTO_NONE \
-e LTO \
-e LTO_CLANG \
-e ARCH_SUPPORTS_LTO_CLANG \
-e ARCH_SUPPORTS_LTO_CLANG_THIN \
-e HAS_LTO_CLANG \
-e LTO_CLANG_THIN \
-e HAVE_GCC_PLUGINS
fi
# -> Enable or disable debug settings
case "${_debug_kernel}" in
"y")
_debug_msg "Enabling kernel debugging"
scripts/config -e DEBUG_INFO \
-e DEBUG_INFO_BTF \
-e DEBUG_INFO_DWARF4 \
-e PAHOLE_HAS_SPLIT_BTF \
-e DEBUG_INFO_BTF_MODULES
;;
"n")
_debug_msg "Disabling kernel debugging"
scripts/config -d DEBUG_INFO \
-d DEBUG_INFO_BTF \
-d DEBUG_INFO_DWARF4 \
-d PAHOLE_HAS_SPLIT_BTF \
-d DEBUG_INFO_BTF_MODULES
;;
esac
# Run olddefconfig
_debug_msg "Running olddefconfig"
make ${BUILD_FLAGS[*]} olddefconfig
# Show diff of default config and updated config
_msg "Showing diff between the default and updated config"
diff -u $srcdir/cl-linux/config .config || :
if [ -n "${_subarch}" ]; then
# Set subarch
_debug_msg "Setting subarchitecture"
if [ "${_subarch}" == "41" ]; then
yes "${_subarch}
${_subarch_microarch}" | make ${BUILD_FLAGS[*]} oldconfig
else
yes "${_subarch}" | make ${BUILD_FLAGS[*]} oldconfig
fi
else
# Ask for subarch
_debug_msg "Asking for subarchitecture"
make ${BUILD_FLAGS[*]} oldconfig
fi
}
# Prepares the installation
prepare() {
_debug_call "prepare"
cd "${_src_linux}" || exit 1
# Apply patches
_apply_patches
if [ -n "${_reuse_current}" ]; then
# Use config from running kernel
_msg " Using configuration file from running kernel"
local "_cur_major_ver=$(zcat /proc/config.gz | grep Linux | grep -o '[0-9]*[0-9]\.[0-9]*[0-9]')"
[ "${_cur_major_ver}" != "${_kernel_major}" ] &&
_warn "Your kernel configuration is old, please update your configuration"
if [[ -s /proc/config.gz ]]; then
zcat /proc/config.gz > ./.config
make ${BUILD_FLAGS[*]} olddefconfig
else
_error "Your kernel was not compiled with 'IKCONFIG_PROC'.\nUnable to read kernel configuration, aborting."
exit 1
fi
elif [ -n "${_reuse_file}" ]; then
# Use ./kconfig
if [ -f "${startdir}/kconfig" ]; then
_msg " Using configuration file \"${startdir}/kconfig\""
cp -Tf "${startdir}/kconfig" ./.config
else
_error "Could not find a kernel configuration at '${startdir}/kconfig'.\nUnable to read kernel configuration, aborting."
exit 1
fi
else
# Use builtin
_msg ":: Using configuration file \"${srcdir}/${pkgbase}/config\""
cp -Tf $srcdir/cl-linux/config ./.config
fi
# Update kernel configuration
if [ -z "${_reuse_current}" ] || [[ -n "${_reuse_current}" && -n "${_update_kconfig_on_reuse}" ]]; then
_update_config
fi
# Read and apply modprobed database
# See https://aur.archlinux.org/packages/modprobed-db
if [ -n "${_localmodcfg}" ]; then
if [ -e "${HOME}/.config/modprobed.db" ]; then
make ${BUILD_FLAGS[*]} LSMOD=${HOME}/.config/modprobed.db localmodconfig
else
_warn "No modprobed.db file was found at ${HOME}/.config, skipping"
fi
fi
# Open configuration editors
[ -n "$_makemenuconfig" ] && make ${BUILD_FLAGS[*]} menuconfig
[ -n "$_makexconfig" ] && make ${BUILD_FLAGS[*]} xconfig
[ -n "$_makenconfig" ] && make ${BUILD_FLAGS[*]} nconfig
# Save configuration
# shellcheck disable=SC2015
[ -n "${_copyfinalconfig}" ] && cp -Tf ./.config "${startdir}/kconfig-new" || :
# Write kernel version
make -s kernelrelease > version
}
# Build kernel
build() {
_debug_call "build"
cd "${_src_linux}" || exit 1
make ${BUILD_FLAGS[*]} all
}
# Packages the kernel package
_package() {
_debug_call "_package"
pkgdesc="${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")
provides=(VIRTUALBOX-GUEST-MODULES WIREGUARD-MODULE KSMBD-MODULE)
install=linux.install
cd "${_src_linux}" || exit 1
local "modulesdir=${pkgdir}/usr/lib/modules/$(<version)"
# Create boot image
# systemd expects to find the kernel there to allow hibernation
# https://github.com/systemd/systemd/commit/edda44605f06a41fb86b7ab8128dcf99161d2344
install -Dm644 "$(make -s image_name)" "${modulesdir}/vmlinuz"
# Used by mkinitcpio to name the kernel
echo "${pkgbase}" | install -Dm644 /dev/stdin "${modulesdir}/pkgbase"
# Install 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 directory
rm "${modulesdir}"/build
}
# Packages the headers package
_package-headers() {
_debug_call "_package-headers"
pkgdesc="${pkgdesc} This package includes header files and scripts for building kernel modules."
depends=("pahole")
cd "${_src_linux}" || exit 1
local "builddir=${pkgdir}/usr/lib/modules/$(<version)/build"
install -Dt "${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
[[ -f tools/bpf/resolve_btfids/resolve_btfids ]] && install -Dt "${builddir}/tools/bpf/resolve_btfids" tools/bpf/resolve_btfids/resolve_btfids
cp -t "${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 "${builddir}/drivers/iio/common/hid-sensors" -m644 drivers/iio/common/hid-sensors/*.h
find . -name 'Kconfig*' -exec install -Dm644 {} "${builddir}/{}" \;
# Remove redundant architectures
local arch
for arch in "${builddir}"/arch/*/; do
[[ $arch = */x86/ ]] && continue
echo "Removing $(basename "${arch}")"
rm -r "${arch}"
done
# Remove documentation
rm -r "${builddir}/Documentation"
# Remove broken symlinks
find -L "${builddir}" -type l -printf "Removing %P\n" -delete
# Remove loose objects
find "${builddir}" -type f -name '*.o' -printf "Removing %P\n" -delete
# Strip 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)
# Strip vmlinux
strip -v $STRIP_STATIC "${builddir}/vmlinux"
# Add symlink to build directory
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
# Taken from https://www.kernel.org/signature.html
validpgpkeys=(
"ABAF11C65A2970B130ABE3C479BE3E4300411886" # Linus Torvalds
"647F28654894E3BD457199BE38DBBDC86092693E" # Greg Kroah-Hartman
"E27E5D8A3403A2EF66873BBCDEA66FF797772CDC" # Sasha Levin
"AC2B29BD34A6AFDDB3F68F35E7BFC8EC95861109" # Ben Hutchings
)
sha256sums=("b1a2562be56e42afb3f8489d4c2a7ac472ac23098f1ef1c1e40da601f54625eb"
"SKIP"
"dd7c856f12d3e10f09743c1d3db35f91879d92890c9fb176405783c9c7cb0c54"
"SKIP"
"b3fd8b1c5bbd39a577afcccf6f1119fdf83f6d72119f4c0811801bdd51d1bc61")
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