path: root/PKGBUILD

# Maintainer: Peter Jung ptr1337 <admin@ptr1337.dev>

### BUILD OPTIONS
# Set the next two variables to ANYTHING that is not null to enable them
### BUILD OPTIONS
# Set these 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
### Set performance governor as default
_per_gov=y
### Disable Deadline I/O scheduler
_deadline_disable=y
### Disable Kyber I/O scheduler
_kyber_disable=y
### Running with a 2000 HZ, 1000HZ or 500HZ tick rate
_2k_HZ_ticks=
_1k_HZ_ticks=y
_750_HZ_ticks=
_500_HZ_ticks=
### Enable protect file mappings under memory pressure
_mm_protect=y
# Tweak kernel options prior to a build via nconfig
_makenconfig=

# 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=

### IMPORTANT: Do no edit below this line unless you know what you're doing

_major=5.10
_minor=70
_srcname=linux-${_major}
pkgbase=linux-cacule-lts
pkgver=${_major}.${_minor}
pkgrel=1
pkgdesc='Linux-CacULE Kernel LTS 5.10 by Hamad Marri and with some other patchsets'
arch=('x86_64' 'x86_64_v3')
url="https://github.com/ptr1337/linux-cacule"
license=('GPL2')
makedepends=('kmod' 'bc' 'libelf' 'python-sphinx' 'python-sphinx_rtd_theme'
             'graphviz' 'imagemagick' 'pahole' 'cpio' 'perl' 'tar' 'xz')
options=('!strip')
_patchsource="https://raw.githubusercontent.com/ptr1337/kernel-patches/master/5.10"
_caculepatches="https://raw.githubusercontent.com/ptr1337/kernel-patches/master/CacULE"
source=(
  "https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-${_major}.tar.xz"
  "https://cdn.kernel.org/pub/linux/kernel/v5.x/patch-${pkgver}.xz"
  "config"
  "${_patchsource}/arch-patches-v14/0001-arch-patches.patch"
  "${_caculepatches}/v5.10/cacule-5.10.patch"
  "${_patchsource}/cpu-patches-v2/0001-cpu-patches.patch"
  "${_patchsource}/futex-trunk-patches-v2/0001-futex-resync-from-gitlab.collabora.com.patch"
  "${_patchsource}/futex2-trunk-patches-v3/0001-futex2-resync-from-gitlab.collabora.com.patch"
#  "${_patchsource}/zen-patches/0001-zen-patches.patch"
  "${_patchsource}/ll-patches/0001-LL-kconfig-add-750Hz-timer-interrupt-kernel-config-o.patch"
  "${_patchsource}/ll-patches/0003-sched-core-nr_migrate-256-increases-number-of-tasks-.patch"
  "${_patchsource}/ll-patches/0004-mm-set-8-megabytes-for-address_space-level-file-read.patch"
  "${_patchsource}/lqx-patches-v4/0001-lqx-patches.patch"
#  "${_patchsource}/fixes-miscellaneous-v11/0001-fixes-miscellaneous.patch"
  "${_patchsource}/bbr2-patches-v3/0001-bbr2-5.10-introduce-BBRv2.patch"
  "${_patchsource}/android-patches/0001-android-patches.patch"
  "${_patchsource}/pf-patches-v11/0001-pf-patches.patch"
  "${_patchsource}/le9db_patches/le9db1-5.10.patch"
#  "${_patchsource}/ntfs3-patches-v7/0001-ntfs3-patches.patch"
  "${_patchsource}/zstd-upstream-patches/0001-zstd-upstream-patches.patch"
#  "${_patchsource}/ksm-patches/0001-ksm-patches.patch"
#  "${_patchsource}/v4l2loopback-patches-v2/0001-v4l2loopback-patches.patch"
)

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}

    ### Add upstream patches
    echo "Add upstream patches"
    patch -Np1 -i ../patch-${pkgver}

    ### 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

 ### Setting config
        echo "Setting config..."
      cp "${srcdir}"/config .config
      make olddefconfig
    ### CPU_ARCH SCRIPT ##
      source "${startdir}"/configure

      cpu_arch
      ### Optionally set tickrate to 2000HZ
        if [ -n "$_2k_HZ_ticks" ]; then
          echo "Setting tick rate to 2k..."
          scripts/config --disable CONFIG_HZ_300
          scripts/config --enable CONFIG_HZ_2000
          scripts/config --set-val CONFIG_HZ 2000
        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 500HZ
           if [ -n "$_750_HZ_ticks" ]; then
             echo "Setting tick rate to 500HZ..."
             scripts/config --disable CONFIG_HZ_300
             scripts/config --enable CONFIG_HZ_750
             scripts/config --set-val CONFIG_HZ 750
           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

    ### Set performance governor
        if [ -n "$_per_gov" ]; then
          echo "Setting performance governor..."
    		  scripts/config --disable CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL
    		  scripts/config --enable CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE
    		  echo "Disabling uneeded governors..."
    		  scripts/config --enable CONFIG_CPU_FREQ_GOV_ONDEMAND
    		  scripts/config --disable CONFIG_CPU_FREQ_GOV_CONSERVATIVE
    		  scripts/config --disable CONFIG_CPU_FREQ_GOV_USERSPACE
    		  scripts/config --disable CONFIG_CPU_FREQ_GOV_SCHEDUTIL
        fi

    ### Disable Deadline I/O scheduler
    	   if [ -n "$_deadline_disable" ]; then
    		   echo "Disabling 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 "$_mm_protect" ]; then
#          	echo "Enabling protect file mappings under memory pressure..."
#          	scripts/config --enable CONFIG_UNEVICTABLE_FILE
#          	scripts/config --set-val CONFIG_UNEVICTABLE_FILE_KBYTES_LOW 262144
#          	scripts/config --set-val CONFIG_UNEVICTABLE_FILE_KBYTES_MIN 131072
#          fi
### Enable protect file mappings under memory pressure
          if [ -n "$_mm_protect" ]; then
          	echo "Enabling protect file mappings under memory pressure..."
  #        	scripts/config --enable CONFIG_UNEVICTABLE_FILE
            scripts/config --set-val CONFIG_CLEAN_LOW_KBYTES 150000
          	scripts/config --set-val CONFIG_CLEAN_MIN_KBYTES 0
          fi

      ### Enabling Cacule-Config ##
          echo "Enable CacULE CPU scheduler..."
          scripts/config --enable CONFIG_CACULE_SCHED
          scripts/config --enable CONFIG_FAIR_GROUP_SCHED
          scripts/config --enable CONFIG_SCHED_AUTOGROUP
          scripts/config --enable CONFIG_CONTEXT_TRACKING
          scripts/config --disable CONFIG_CONTEXT_TRACKING_FORCE
          echo "Enabling KBUILD_CFLAGS -O3..."
          scripts/config --enable CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE
          scripts/config --disable CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3
          echo "Enable PREEMPT"
          scripts/config --disable CONFIG_PREEMPT_NONE
          scripts/config --disable CONFIG_PREEMPT_VOLUNTARY
          scripts/config --enable CONFIG_PREEMPT
          scripts/config --enable CONFIG_PREEMPT_COUNT
          scripts/config --enable CONFIG_PREEMPTION
          scripts/config --enable CONFIG_PREEMPT_DYNAMIC
          echo "Enable NTFS3"
          scripts/config --module CONFIG_NTFS_FS
          scripts/config --enable CONFIG_NTFS_RW
          scripts/config --enable CONFIG_NTFS_DEBUG
          scripts/config --module CONFIG_NTFS3_FS
          scripts/config --enable CONFIG_NTFS3_64BIT_CLUSTER
          scripts/config --enable CONFIG_NTFS3_LZX_XPRESS
          scripts/config --enable CONFIG_NTFS3_FS_POSIX_ACL
          echo "Enable Anbox"
          scripts/config --module  CONFIG_ASHMEM
          scripts/config --enable  CONFIG_ANDROID_BINDER_IPC_SELFTEST
          scripts/config --enable  CONFIG_ANDROID
          scripts/config --enable  CONFIG_ANDROID_BINDER_IPC
          scripts/config --enable  CONFIG_ANDROID_BINDERFS
          scripts/config --set-str CONFIG_ANDROID_BINDER_DEVICES binder,hwbinder,vndbinder
          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 "Enable VHBA-Module"
          scripts/config --module CONFIG_VHBA




    ### 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 $HOME/.config/modprobed.db ]; then
            echo "Running Steven Rostedt's make localmodconfig now"
            make LSMOD=$HOME/.config/modprobed.db localmodconfig
        else
            echo "No modprobed.db data found"
            exit
        fi
    fi

    make -s kernelrelease > version
    echo "Prepared $pkgbase version $(<version)"

    [[ -z "$_makenconfig" ]] || make nconfig

    ### Save configuration for later reuse
    cp -Tf ./.config "${startdir}/config-${pkgver}-${pkgrel}${pkgbase#linux}"
}

build() {
    cd $_srcname
    make 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 $_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}
}

_package-headers() {
    pkgdesc="Headers and scripts for building modules for the $pkgdesc kernel"

    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"
}

pkgname=("$pkgbase" "$pkgbase-headers")
for _p in "${pkgname[@]}"; do
  eval "package_$_p() {
    $(declare -f "_package${_p#$pkgbase}")
    _package${_p#$pkgbase}
  }"
done

md5sums=('753adc474bf799d569dec4f165ed92c3'
         '6b79fd5a7ad2368d4cb303b632517b63'
         'f0040e2cde2c56ea1d34c5514d5046a5'
         '74798df2eba8d58326c73606b03786b7'
         '41f27359b0c2f1ffc810b4a7667d98b4'
         '1ddeca3dfe8d2dfbf722a6e19ab500cd'
         '6c1ebf661101e7cecb82b93ea09725ce'
         '0fabe82284ef611e30d9d4e1e5529215'
         'd37129cccaeda16862b57841a96b853f'
         'f30e9fbc725c211b802e3f9fc1ab14a8'
         '05b715c84f562cb65bf90e7b6c0397a8'
         'db72f9fe09be3f11db7e1e268a5ac3eb'
         '45704a71e1cb971e337700c52da739f0'
         'f2ffcac0e7673f862c98c6c258ddd3ca'
         'f912dd337230972d950afd420bbc2c69'
         '8ffe3243a9df5928d0e03e1aa1b60d9a'
         '0575ffbb96ab5e5b1b2e378667e276ca')