TT scheduler

1 files changed, 662 insertions, 0 deletions

diff --git a/PKGBUILD b/PKGBUILD
new file mode 100644
index 000000000000..0e06553e92c0
--- /dev/null
+++ b/PKGBUILD
@@ -0,0 +1,662 @@
+# Maintainer: Peter Jung ptr1337 <admin@ptr1337.dev>
+
+### BUILD OPTIONS
+# Set the next two 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
+
+# Enable fsync
+_fsync=y
+
+#enable futex2
+_futex2=y
+
+#enable winesync
+_winesync=y
+
+### Running with a 2000 HZ, 1000HZ, 750Hz or  500HZ tick rate
+_1k_HZ_ticks=
+_803_HZ_ticks=y
+_500_HZ_ticks=
+
+### Disable MQ-Deadline I/O scheduler
+_mq_deadline_disable=y
+
+### Disable Kyber I/O scheduler
+_kyber_disable=y
+
+### Enable protect file mappings under memory pressure
+_mm_protect=y
+
+### Enable multigenerational LRU
+_lru_enable=y
+
+### Enable Linux Random Number Generator
+_lrng_enable=y
+
+## Samba3 Server
+_ksmbd_enable=
+
+# Tweak kernel options prior to a build via nconfig
+_makenconfig=
+
+
+## Apply Kernel automatic Optimization
+_use_auto_optimization=y
+
+## Apply Kernel Optimization selecting
+_use_optimization_select=
+
+
+### Selecting the ZSTD compression level
+# ATTENTION - one of two predefined values should be selected!
+# 'ultra' - highest compression ratio
+# 'normal' - standard compression ratio
+_zstd_level='ultra'
+
+### Selecting the ZSTD module compression level
+# If you want to use ZSTD compression,
+# first install mkinitcpio-zstd:
+# https://gitlab.com/sirlucjan/lucjan-kernels/tree/master/depends
+# or
+# https://github.com/sirlucjan/lucjan-kernels/tree/master/depends
+# ATTENTION - one of two predefined values should be selected!
+# 'ultra' - highest compression ratio
+# 'normal' - standard compression ratio
+# WARNING: the ultra settings can sometimes
+# be counterproductive in both size and speed.
+_zstd_module_level='normal'
+
+### Enable SECURITY_FORK_BRUTE
+# WARNING Not recommended.
+# An experimental solution, still in testing phase.
+# Possible compilation and installation errors.
+# Leave it unselected.
+_fork_brute=
+
+## Enable it for compiling with LLVM and THINLTO
+_use_llvm_lto=
+
+# Enable it for using the LLVM CFI PATCH for a better security
+_use_cfi=
+
+## Enable PGO (patch is failing when cfi is also used)
+_use_pgo=
+
+# 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=
+
+# 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=
+
+# Tweak kernel options prior to a build via nconfig
+_makenconfig=
+
+if [ -n "$_use_llvm_lto" ]; then
+  pkgbase=linux-tt-lto
+else
+  pkgbase=linux-tt
+fi
+pkgver=5.14.14
+pkgrel=1
+arch=(x86_64 x86_64_v3)
+pkgdesc='Linux-TT Kernel by CachyOS and with some other patches and other improvements'
+#_gittag=v${pkgver%.*}-${pkgver##*.}
+arch=('x86_64' 'x86_64_v3')
+url="https://github.com/CachyOS/linux-cachyos"
+license=('GPL2')
+options=('!strip')
+makedepends=('kmod' 'bc' 'libelf' 'python-sphinx' 'python-sphinx_rtd_theme'
+'graphviz' 'imagemagick' 'pahole' 'cpio' 'perl' 'tar' 'xz')
+if [ -n "$_use_llvm_lto" ]; then
+  makedepends+=(clang llvm lld python)
+fi
+_patchsource="https://raw.githubusercontent.com/ptr1337/kernel-patches/master/5.14"
+source=("https://cdn.kernel.org/pub/linux/kernel/v${pkgver:0:1}.x/linux-${pkgver}.tar.xz"
+  "config"
+  "${_patchsource}/arch-patches-v10/0001-arch-patches.patch"
+  "${_patchsource}/TT-Scheduler/0001-tt-CK-fixes.patch"
+  "${_patchsource}/0001-tt-CK-fixes.patch"
+  "${_patchsource}/cpufreq-patches/0001-cpufreq-patches.patch"
+  "${_patchsource}/misc/0008-remove-LightNVM.patch"
+  "${_patchsource}/0001-slub.patch"
+  "${_patchsource}/misc/amd/0011-amd-ptdma.patch"
+  "${_patchsource}/0001-clearlinux-patches.patch"
+  "${_patchsource}/android-patches/0001-android-export-symbold-and-enable-building-ashmem-an.patch"
+  "${_patchsource}/bbr2-patches/0001-bbr2-5.14-introduce-BBRv2.patch"
+  "${_patchsource}/block-patches-v2/0001-block-patches.patch"
+  "${_patchsource}/btrfs-patches-v9/0001-btrfs-patches.patch"
+  "${_patchsource}/fixes-miscellaneous-v7/0001-fixes-miscellaneous.patch"
+  "${_patchsource}/futex-xanmod-patches-v2/0001-futex-resync-from-gitlab.collabora.com.patch"
+  "${_patchsource}/futex2-xanmod-patches-v2/0001-futex2-resync-from-gitlab.collabora.com.patch"
+  "${_patchsource}/ksmbd-patches-v19/0001-ksmbd-patches.patch"
+  "${_patchsource}/hwmon-patches-v5/0001-hwmon-patches.patch"
+  "${_patchsource}/lqx-patches/0001-lqx-patches.patch"
+  "${_patchsource}/lrng-patches-v2/0001-lrng-patches.patch"
+  "${_patchsource}/lru-patches-v4/0001-lru-patches.patch"
+  "${_patchsource}/pf-patches-v9/0001-pf-patches.patch"
+  "${_patchsource}/xanmod-patches-v2/0001-xanmod-patches.patch"
+  "${_patchsource}/zen-patches-v3/0001-zen-patches.patch"
+  "${_patchsource}/zstd-patches-v2/0001-zstd-patches.patch"
+  "${_patchsource}/security-patches/0001-security-patches.patch"
+  "${_patchsource}/zstd-upstream-patches-v6/0001-zstd-upstream-patches.patch"
+  "${_patchsource}/ntfs3-patches-v14/0001-ntfs3-patches.patch"
+  "${_patchsource}/0001-ksm.patch"
+  "${_patchsource}/0001-cpu-patches.patch"
+  "${_patchsource}/0001-winesync.patch"
+  "${_patchsource}/0001-v4l2loopback.patch"
+  "auto-cpu-optimization.sh"
+)
+
+if [ -n "$_use_pgo" ]; then
+  source+=("${_patchsource}/0001-PGO.patch")
+fi
+
+if [ -n "$_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() {
+  cd "${srcdir:?}/linux-${pkgver}" || (
+    echo -e "\E[1;31mCan't cd to ${srcdir:?}/linux-${pkgver} directory! Prepare failed! \E[0m"
+    exit 1
+  )
+
+  ### Setting version
+  echo "Setting version..."
+  scripts/setlocalversion --save-scmversion
+  echo "-$pkgrel" > localversion.10-pkgrel
+  echo "${pkgbase#linux}" > localversion.20-pkgname
+
+
+  local src
+  for src in "${source[@]}"; do
+    src="${src%%::*}"
+    src="${src##*/}"
+    [[ $src = *.patch ]] || continue
+    echo "Applying patch $src..."
+    patch -Np1 < "../$src"
+  done
+
+  echo "Setting config..."
+  cp ../config .config
+
+  if [ -n "$_use_cfi" ]; then
+    scripts/config --enable CONFIG_ARCH_SUPPORTS_CFI_CLANG
+    scripts/config --enable CONFIG_CFI_CLANG
+  fi
+
+  if [ -n "$_use_pgo" ]; then
+    scripts/config --enable CONFIG_ARCH_SUPPORTS_PGO_CLANG
+    scripts/config --enable DEBUG_FS
+    scripts/config --enable CONFIG_PGO_CLANG
+  fi
+
+  ### Microarchitecture Optimization (GCC/CLANG)
+  if [ -n "$_use_auto_optimization" ]; then
+    "${srcdir}"/auto-cpu-optimization.sh
+  fi
+  if [ -n "$_use_optimization_select" ]; then
+    source "${startdir}"/configure
+    cpu_arch
+  fi
+
+  ### Optionally set tickrate to 1000
+  if [ -n "$_1k_HZ_ticks" ]; then
+    echo "Setting tick rate to 1k..."
+    scripts/config --disable CONFIG_HZ_300
+    scripts/config --enable CONFIG_HZ_1000
+    scripts/config --set-val CONFIG_HZ 1000
+  fi
+
+  ### Optionally set tickrate to 803Hz
+  if [ -n "$_803_HZ_ticks" ]; then
+    echo "Setting tick rate to 803HZ..."
+    scripts/config --disable CONFIG_HZ_300
+    scripts/config --enable CONFIG_HZ_803
+    scripts/config --set-val CONFIG_HZ 803
+  fi
+
+  ### Optionally set tickrate to 500HZ
+  if [ -n "$_500_HZ_ticks" ]; then
+    echo "Setting tick rate to 500HZ..."
+    scripts/config --disable CONFIG_HZ_300
+    scripts/config --enable CONFIG_HZ_500
+    scripts/config --set-val CONFIG_HZ 500
+  fi
+
+  ### Optionally disable NUMA for 64-bit kernels only
+  # (x86 kernels do not support NUMA)
+  if [ -n "$_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
+
+  if [ -n "$_winesync" ]; then
+    echo "Enable winesync support"
+    scripts/config --module CONFIG_WINESYNC
+  fi
+
+  ### Disable MQ-Deadline I/O scheduler
+  if [ -n "$_mq_deadline_disable" ]; then
+    echo "Disabling MQ-Deadline I/O scheduler..."
+    scripts/config --disable CONFIG_MQ_IOSCHED_DEADLINE
+  fi
+
+  ### Disable Kyber I/O scheduler
+  if [ -n "$_kyber_disable" ]; then
+    echo "Disabling Kyber I/O scheduler..."
+    scripts/config --disable CONFIG_MQ_IOSCHED_KYBER
+  fi
+
+  ### Enable protect file mappings under memory pressure
+  if [ -n "$_mm_protect" ]; then
+    echo "Enabling protect file mappings under memory pressure..."
+    scripts/config --enable CONFIG_UNEVICTABLE_FILE
+    scripts/config --set-val CONFIG_UNEVICTABLE_FILE_KBYTES_LOW 262144
+    scripts/config --set-val CONFIG_UNEVICTABLE_FILE_KBYTES_MIN 131072
+    scripts/config --enable CONFIG_UNEVICTABLE_ANON
+    scripts/config --set-val CONFIG_UNEVICTABLE_ANON_KBYTES_LOW 65536
+    scripts/config --set-val CONFIG_UNEVICTABLE_ANON_KBYTES_MIN 32768
+  fi
+
+  ### Enable multigenerational LRU
+  if [ -n "$_lru_enable" ]; then
+    echo "Enabling multigenerational LRU..."
+    scripts/config --enable CONFIG_HAVE_ARCH_PARENT_PMD_YOUNG
+    scripts/config --enable CONFIG_LRU_GEN
+    scripts/config --set-val CONFIG_NR_LRU_GENS 7
+    scripts/config --set-val CONFIG_TIERS_PER_GEN 4
+    scripts/config --enable CONFIG_LRU_GEN_ENABLED
+    scripts/config --disable CONFIG_LRU_GEN_STATS
+  fi
+
+  ### Enable Linux Random Number Generator
+  if [ -n "$_lrng_enable" ]; then
+    echo "Enabling Linux Random Number Generator ..."
+    scripts/config --enable CONFIG_LRNG
+    scripts/config --enable CONFIG_LRNG_OVERSAMPLE_ENTROPY_SOURCES
+    scripts/config --set-val CONFIG_CONFIG_LRNG_OVERSAMPLE_ES_BITS 64
+    scripts/config --set-val CONFIG_LRNG_SEED_BUFFER_INIT_ADD_BITS 128
+    scripts/config --enable CONFIG_LRNG_CONTINUOUS_COMPRESSION_ENABLED
+    scripts/config --disable CONFIG_LRNG_CONTINUOUS_COMPRESSION_DISABLED
+    scripts/config --enable CONFIG_LRNG_ENABLE_CONTINUOUS_COMPRESSION
+    scripts/config --enable CONFIG_LRNG_SWITCHABLE_CONTINUOUS_COMPRESSION
+    scripts/config --disable CONFIG_LRNG_COLLECTION_SIZE_512
+    scripts/config --enable CONFIG_LRNG_COLLECTION_SIZE_1024
+    scripts/config --disable CONFIG_LRNG_COLLECTION_SIZE_2048
+    scripts/config --disable CONFIG_LRNG_COLLECTION_SIZE_4096
+    scripts/config --disable CONFIG_LRNG_COLLECTION_SIZE_8192
+    scripts/config --set-val CONFIG_LRNG_COLLECTION_SIZE 1024
+    scripts/config --enable CONFIG_LRNG_HEALTH_TESTS
+    scripts/config --set-val CONFIG_LRNG_RCT_CUTOFF 31
+    scripts/config --set-val CONFIG_LRNG_APT_CUTOFF 325
+    scripts/config --set-val CONFIG_LRNG_IRQ_ENTROPY_RATE 256
+    scripts/config --enable CONFIG_LRNG_JENT
+    scripts/config --set-val CONFIG_LRNG_JENT_ENTROPY_RATE 16
+    scripts/config --set-val CONFIG_LRNG_CPU_ENTROPY_RATE 8
+    scripts/config --enable CONFIG_LRNG_DRNG_SWITCH
+    scripts/config --enable CONFIG_LRNG_KCAPI_HASH
+    scripts/config --module CONFIG_LRNG_DRBG
+    scripts/config --module CONFIG_LRNG_KCAPI
+    scripts/config --enable CONFIG_LRNG_TESTING_MENU
+    scripts/config --disable CONFIG_LRNG_RAW_HIRES_ENTROPY
+    scripts/config --disable CONFIG_LRNG_RAW_JIFFIES_ENTROPY
+    scripts/config --disable CONFIG_LRNG_RAW_IRQ_ENTROPY
+    scripts/config --disable CONFIG_LRNG_RAW_IRQFLAGS_ENTROPY
+    scripts/config --disable CONFIG_LRNG_RAW_RETIP_ENTROPY
+    scripts/config --disable CONFIG_LRNG_RAW_REGS_ENTROPY
+    scripts/config --disable CONFIG_LRNG_RAW_ARRAY
+    scripts/config --disable CONFIG_LRNG_IRQ_PERF
+    scripts/config --disable CONFIG_LRNG_ACVT_HASH
+    scripts/config --enable CONFIG_LRNG_RUNTIME_ES_CONFIG
+    scripts/config --disable CONFIG_LRNG_RUNTIME_MAX_WO_RESEED_CONFIG
+    scripts/config --enable CONFIG_LRNG_SELFTEST
+    scripts/config --disable CONFIG_LRNG_SELFTEST_PANIC
+  fi
+  echo "Enable LLVM LTO"
+  if [ -n "$_use_llvm_lto" ]; then
+    scripts/config --disable CONFIG_LTO_NONE
+  fi
+
+  ### Enable SMB3 Kernel Server
+  if [ -n "$_ksmbd_enable" ]; then
+    echo "Enabling SMB3 Kernel Server..."
+    scripts/config --module CONFIG_SMB_SERVER
+    scripts/config --enable CONFIG_SMB_SERVER_SMBDIRECT
+    scripts/config --enable CONFIG_SMB_SERVER_CHECK_CAP_NET_ADMIN
+    scripts/config --enable CONFIG_SMB_SERVER_KERBEROS5
+  fi
+
+  ### Selecting the ZSTD compression level
+  if [ "$_zstd_level" = "ultra" ]; then
+    echo "Enabling highest ZSTD compression ratio..."
+    scripts/config --set-val CONFIG_KERNEL_ZSTD_LEVEL 19
+    scripts/config --enable CONFIG_KERNEL_ZSTD_LEVEL_ULTRA
+  elif [ "$_zstd_level" = "normal" ]; then
+    echo "Enabling standard ZSTD compression ratio..."
+    scripts/config --set-val CONFIG_KERNEL_ZSTD_LEVEL 19
+    scripts/config --disable CONFIG_KERNEL_ZSTD_LEVEL_ULTRA
+  else
+    if [ -n "$_zstd_level" ]; then
+      error "The value $_zstd_level is invalid. Choose the correct one again."
+    else
+      error "The value is empty. Choose the correct one again."
+    fi
+    error "Selecting the ZSTD compression level failed!"
+    exit
+  fi
+
+  ### Selecting the ZSTD module compression level
+  if [ "$_zstd_module_level" = "ultra" ]; then
+    echo "Enabling highest ZSTD module compression ratio..."
+    scripts/config --set-val CONFIG_MODULE_COMPRESS_ZSTD_LEVEL 19
+    scripts/config --enable CONFIG_MODULE_COMPRESS_ZSTD_ULTRA
+    scripts/config --set-val CONFIG_MODULE_COMPRESS_ZSTD_LEVEL_ULTRA 22
+  elif [ "$_zstd_module_level" = "normal" ]; then
+    echo "Enabling standard ZSTD module compression ratio..."
+    scripts/config --set-val CONFIG_MODULE_COMPRESS_ZSTD_LEVEL 19
+    scripts/config --disable CONFIG_MODULE_COMPRESS_ZSTD_ULTRA
+  else
+    if [ -n "$_zstd_module_level" ]; then
+      error "The value $_zstd_module_level is invalid. Choose the correct one again."
+    else
+      error "The value is empty. Choose the correct one again."
+    fi
+    error "Selecting the ZSTD module compression level failed!"
+    exit
+  fi
+
+  echo "Disabling TCP_CONG_CUBIC..."
+  scripts/config --module CONFIG_TCP_CONG_CUBIC
+  scripts/config --disable CONFIG_DEFAULT_CUBIC
+  echo "Enabling TCP_CONG_BBR2..."
+  scripts/config --enable CONFIG_TCP_CONG_BBR2
+  scripts/config --enable CONFIG_DEFAULT_BBR2
+  scripts/config --set-str CONFIG_DEFAULT_TCP_CONG bbr2
+  echo "Enabling FULLCONENAT..."
+  scripts/config --module CONFIG_IP_NF_TARGET_FULLCONENAT
+  scripts/config --module CONFIG_NETFILTER_XT_TARGET_FULLCONENAT
+  echo "Setting performance governor..."
+  scripts/config --disable CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL
+  scripts/config --enable CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE
+  scripts/config --enable CONFIG_CPU_FREQ_GOV_ONDEMAND
+  scripts/config --enable CONFIG_CPU_FREQ_GOV_CONSERVATIVE
+  scripts/config --enable CONFIG_CPU_FREQ_GOV_USERSPACE
+  scripts/config --enable CONFIG_CPU_FREQ_GOV_SCHEDUTIL
+  echo "Enable AMD PSTATE v2 driver"
+  scripts/config --enable CONFIG_X86_AMD_PSTATE
+  scripts/config --enable CONFIG_AMD_PTDMA
+
+
+
+  echo "Disable NUMA"
+  if [ -n "$_NUMAdisable" ]; then
+    echo "Disabling NUMA from kernel config..."
+    scripts/config --disable CONFIG_NUMA
+  fi
+
+  echo "Change config for baby scheduler"
+  scripts/config --enable CONFIG_HZ_PERIODIC
+  scripts/config --disable CONFIG_NO_HZ_IDLE
+  scripts/config --disable CONFIG_NO_HZ_FULL
+  scripts/config --disable CONFIG_NO_HZ
+  scripts/config --disable CONFIG_EXPERT
+  scripts/config --disable CONFIG_DEBUG_KERNEL
+  scripts/config --disable CONFIG_SCHED_DEBUG
+  scripts/config --disable CONFIG_SCHEDSTATS
+  scripts/config --disable NO_HZ
+  scripts/config --disable SCHED_AUTOGROUP
+  scripts/config --disable CGROUP_SCHED
+  scripts/config --disable UCLAMP_TASK
+  scripts/config --disable SCHED_CORE
+  scripts/config --enable CONFIG_TT_SCHED
+  scripts/config --enable CONFIG_HIGH_RES_TIMERS
+  echo "Enable Anbox"
+  scripts/config --enable CONFIG_ASHMEM
+  scripts/config --enable CONFIG_ANDROID
+  scripts/config --enable CONFIG_ANDROID_BINDER_IPC
+  scripts/config --enable CONFIG_ANDROID_BINDERFS
+  scripts/config --enable CONFIG_ANDROID_BINDER_DEVICES="binder,hwbinder,vndbinder"
+
+  ### Optionally use running kernel's config
+  # code originally by nous; http://aur.archlinux.org/packages.php?ID=40191
+  if [ -n "$_use_current" ]; then
+    if [[ -s /proc/config.gz ]]; then
+      echo "Extracting config from /proc/config.gz..."
+      # modprobe configs
+      zcat /proc/config.gz > ./.config
+    else
+      warning "Your kernel was not compiled with IKCONFIG_PROC!"
+      warning "You cannot read the current config!"
+      warning "Aborting!"
+      exit
+    fi
+  fi
+
+  ### Optionally load needed modules for the make localmodconfig
+  # See https://aur.archlinux.org/packages/modprobed-db
+  if [ -n "$_localmodcfg" ]; then
+    if [ -e "$HOME"/.config/modprobed.db ]; then
+      echo "Running Steven Rostedt's make localmodconfig now"
+      make ${BUILD_FLAGS[*]} LSMOD="$HOME"/.config/modprobed.db localmodconfig
+    else
+      echo "No modprobed.db data found"
+      exit
+    fi
+  fi
+
+  echo "Applying default config..."
+  make ${BUILD_FLAGS[*]} olddefconfig
+  make ${BUILD_FLAGS[*]} -s kernelrelease > version
+  echo "Prepared $pkgbase version $(<version)"
+
+  [[ -z "$_makenconfig" ]] || make ${BUILD_FLAGS[*]} nconfig
+
+  ### Save configuration for later reuse
+  cp -Tf ./.config "${startdir}/config-${pkgver}-${pkgrel}${pkgbase#linux}"
+}
+
+build() {
+  cd "${srcdir:?}/linux-${pkgver}" || (
+    echo -e "\E[1;31mCan't cd to ${srcdir:?}/linux-${pkgver} directory! Build failed! \E[0m"
+    exit 1
+  )
+  make ${BUILD_FLAGS[*]} -j$(nproc) all
+}
+
+_package() {
+  pkgdesc="The $pkgdesc kernel and modules"
+  depends=('coreutils' 'kmod' 'initramfs')
+  optdepends=('crda: to set the correct wireless channels of your country'
+    'linux-firmware: firmware images needed for some devices'
+  'modprobed-db: Keeps track of EVERY kernel module that has ever been probed - useful for those of us who make localmodconfig')
+  provides=(VIRTUALBOX-GUEST-MODULES WIREGUARD-MODULE)
+
+  cd "${srcdir:?}/linux-${pkgver}" || (
+    echo -e "\E[1;31mCan't cd to ${srcdir:?}/linux-${pkgver} directory! Package linux kernel failed! \E[0m"
+    exit 1
+  )
+
+  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 ${BUILD_FLAGS[*]} INSTALL_MOD_PATH="${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 ${pkgdesc}"
+  depends=("${pkgbase}=${pkgver}" "pahole")
+
+  cd "${srcdir:?}/linux-${pkgver}" || (
+    echo -e "\E[1;31mCan't cd to ${srcdir:?}/linux-${pkgver} directory! Package linux headers failed! \E[0m"
+    exit 1
+  )
+
+  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 "${builddir}/net/mac80211" -m644 net/mac80211/*.h
+
+  # https://bugs.archlinux.org/task/13146
+  install -Dt "${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 "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/${pkgbase}"
+
+}
+
+md5sums=('9646d53502447936773c65cac149572c'
+  'b09057d8f5bd130039a6dc4e79c5dd9d'
+  '581faf85cd625c41bbdd0cadbd0e451e'
+  '86d88da7edb9267ea3c4c4fd06ee6d94'
+  '86d88da7edb9267ea3c4c4fd06ee6d94'
+  'b87b77bd4273817f2b792d6fe965e417'
+  'eb39a5681a153f5a1f5a67e8b9e957a5'
+  '0464f6f1267bae4d87ee97a305d32467'
+  'e2a4af58b9d784226792fdc71d2cabba'
+  '54f750c0e08b4e5b51a49c494a6891d6'
+  'e45c7962a78d6e82a0d3808868cd6ac0'
+  '196d6ac961497aa880264b83160eb140'
+  '1eaf224f9f46096efb75c153b712d702'
+  '08183676295d4a89a2c65b1bc326ae3f'
+  '7c0ff8bd5d8f1069ab34aec2060109c9'
+  'fd934f7d11131d5a5043e4aea640583b'
+  '8a96c5e8346bd5b430776ac8a41f96b0'
+  'c5cc719fcd48592d437610c19b9a997b'
+  '5c9334532387ae8df80cff9bb5890954'
+  '6787c78ba3e7b0a34fbba9c50da7e3b4'
+  '366c90b64f9582c0733b8fb607a07594'
+  '8adcaccbb5c0ebd4bc81144e16b92627'
+  '607228871a4127c31baae7b1d66866bc'
+  '28864f14bf33bad92e57bc48bc5c2c78'
+  'cfef1423ad1e6aecad63f0d5eacaea37'
+  '808981a36c81165953017e5e432c1fa1'
+  'f6a1c51adfc68fb7b52dc5715a9cb5a7'
+  'f818b58bb2c6a30cd6fe88a8bd434b90'
+  '0636779d32ba47bda25d3edb5fbd08c9'
+  '566435a0444ee45816599f2e0e362c7a'
+  'bb22330e270bf36ccf53cb04d6b496d2'
+  '4c493a3e0f3486be8ad1b6c67c9c6917'
+  '95eb4457f95f3f8dd153983612ee65c0'
+'21c98f19e883879dd3336c1fa143fd31')
+
+pkgname=("$pkgbase" "$pkgbase-headers" )
+for _p in "${pkgname[@]}"; do
+  eval "package_$_p() {
+              $(declare -f "_package${_p#$pkgbase}")
+              _package${_p#$pkgbase}
+  }"
+done