#!/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> # All build options have been removed as this PKGBUILD is exclusively used for buildtool.sh. # If you want to build linux-jstm-optimized without using buildtool.sh use the other PKGBUILD file instead. _kerneloptimized_version=ko2 _kernel_major=6.8 _kernel_minor=2 _gcc_more_v='20240221.2' _srcname_linux=linux-${_kernel_major} _srcname_clpatches=${_kernel_major}.2-1420 pkgbase=linux-jstm-optimized pkgver=linux${_kernel_major}.${_kernel_minor}+clear${_srcname_clpatches//-/_}+${_kerneloptimized_version} pkgrel=1 pkgdesc="Optimized Linux kernel. Includes Clear Linux's kernel config and some tweaks made by JeremyStarTM." arch=('x86_64') url="https://git.staropensource.de/JeremyStarTM/kernel-optimized" license=(GPL-2.0-only) makedepends=('bc' 'cpio' 'git' 'libelf' 'pahole' 'xmlto') if [ -n "$_use_llvm_lto" ]; then makedepends+=(clang llvm lld python) fi options=(!strip !debug) if [ "${_debug}" == "y" ]; then options=(!strip) fi source=( "https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-${_kernel_major}.tar.xz" "https://cdn.kernel.org/pub/linux/kernel/v6.x/patch-${_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|^Patch0109|^Patch0118|^Patch0113|^Patch0138|^Patch0139|^Patch0147' | 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-$_gcc_more_v/more-uarches-for-kernel-6.8-rc4+.patch" if [ -n "$_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 \"${HOME}/.config/modprobed.db\", skipping" fi fi echo ":: prepare: writing kernel version" make -s kernelrelease > version [[ -z "$_makemenuconfig" ]] || ( echo ":: prepare: executing menuconfig" make ${BUILD_FLAGS[*]} menuconfig ) [[ -z "$_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=('c969dea4e8bb6be991bbf7c010ba0e0a5643a3a8d8fb0a2aaa053406f1e965f3' '1d190147d8eee0313f0ea1e565070fc4f88db9c20e9d85dc0c6b9ad62a69b3fa' 'SKIP' '1d3ac3e581cbc5108f882fcdc75d74f7f069654c71bad65febe5ba15a7a3a14f')