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#Maintainer: archdevlab <https://github.com/archdevlab>
#Credits: Jan Alexander Steffens (heftig) <heftig@archlinux.org>
#Credits: Andreas Radke <andyrtr@archlinux.org>
#Credits: Luca Stefani <luca.stefani.ge1@gmail.com>
################################# Arch ################################
ARCH=x86
################################# Grep GCC version ################################
_gccversion=$(gcc -dumpversion)
################################# CC/CXX/HOSTCC/HOSTCXX ################################
#Set kernel to build with LLVM/CLANG
BUILD_FLAGS=(CC=clang CXX=clang++ HOSTCC=clang HOSTCXX=clang++ LD=ld.lld LLVM=1 LLVM_IAS=1)
###################################################################################
pkgbase=linux-llvm
pkgver=6.11.0
_pkgver=6.11
pkgrel=1
major=6.11
commit=14fad3df4488776debb20a3abdd9ae98efaa9df5
arch=(x86_64)
url='https://www.kernel.org/'
license=(GPL-2.0-only)
makedepends=(
bc
cpio
gettext
libelf
pahole
perl
python
rust
rust-bindgen
rust-src
tar
xz
kmod
xmlto
# htmldocs
graphviz
imagemagick
python-sphinx
python-yaml
texlive-latexextra
)
makedepends+=(
bison
flex
zstd
make
patch
gcc
gcc-libs
glibc
binutils
git
# LLVM/CLANG build
clang
llvm
llvm-libs
lld
clang
python
)
options=(
!debug
!strip
)
archlinuxpath=https://gitlab.archlinux.org/archlinux/packaging/packages/linux/-/raw/$commit
source=(https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-$_pkgver.tar.xz
${archlinuxpath}/config
# Arch patches
0001-ZEN-Add-sysctl-and-CONFIG-to-disallow-unprivileged-C.patch
0002-arch-Kconfig-Default-to-maximum-amount-of-ASLR-bits.patch
0003-x86-apic-Remove-logical-destination-mode-for-64-bit.patch)
export KBUILD_BUILD_HOST=archlinux
export KBUILD_BUILD_USER=$pkgbase
export KBUILD_BUILD_TIMESTAMP="$(date -Ru${SOURCE_DATE_EPOCH:+d @$SOURCE_DATE_EPOCH})"
prepare(){
cd ${srcdir}/linux-$_pkgver
local src
for src in "${source[@]}"; do
src="${src%%::*}"
src="${src##*/}"
[[ $src = *.patch ]] || continue
msg "Applying patch $src..."
patch -Np1 < "../$src"
done
plain ""
# Copy the config file first
msg "Copy the config file first..."
cp "${srcdir}"/config .config
sleep 2s
plain ""
# # Remove gcc-plugin if gcc version = 13.0.0
# if [[ "$_gccversion" = "13.0.0" ]]; then
#
# msg "Remove GCC_PLUGINS"
# scripts/config --disable CONFIG_HAVE_GCC_PLUGINS
# scripts/config --disable CONFIG_GCC_PLUGINS
#
# sleep 2s
# plain ""
# fi
# Set LTO with CLANG/LLVM
msg "Enable THIN LTO"
scripts/config --enable CONFIG_LTO
scripts/config --enable CONFIG_LTO_CLANG
scripts/config --enable CONFIG_ARCH_SUPPORTS_LTO_CLANG
scripts/config --enable CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN
scripts/config --disable CONFIG_LTO_NONE
scripts/config --enable CONFIG_HAS_LTO_CLANG
scripts/config --disable CONFIG_LTO_CLANG_FULL
scripts/config --enable CONFIG_LTO_CLANG_THIN
scripts/config --enable CONFIG_HAVE_GCC_PLUGINS
#msg "Enable FULL LTO"
#scripts/config --enable CONFIG_LTO
#scripts/config --enable CONFIG_LTO_CLANG
#scripts/config --enable CONFIG_ARCH_SUPPORTS_LTO_CLANG
#scripts/config --enable CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN
#scripts/config --disable CONFIG_LTO_NONE
#scripts/config --enable CONFIG_HAS_LTO_CLANG
#scripts/config --enable CONFIG_LTO_CLANG_FULL
#scripts/config --disable CONFIG_LTO_CLANG_THIN
#scripts/config --enable CONFIG_HAVE_GCC_PLUGINS
#msg "Disable LTO"
#scripts/config --enable CONFIG_LTO_NONE
sleep 2s
plain ""
msg "Set Font"
scripts/config --disable CONFIG_FONTS
scripts/config --enable CONFIG_FONT_8x8
scripts/config --enable CONFIG_FONT_8x16
sleep 2s
plain ""
# Supress depmod
msg "Supress depmod..."
sed -i '2iexit 0' scripts/depmod.sh
sleep 2s
plain ""
# Setting localversion
msg "Setting localversion..."
# --save-scmversion as been removed in upstream
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/scripts/setlocalversion?h=v6.3-rc1&id=f6e09b07cc12a4d104bb19fe7566b0636f60c413
# scripts/setlocalversion --save-scmversion
echo "-${pkgbase}" > localversion
plain ""
# Config
msg "make olddefconfig..."
make ARCH=${ARCH} ${BUILD_FLAGS[*]} olddefconfig
plain ""
make -s kernelrelease > version
msg "Prepared $pkgbase version $(<version)"
plain ""
}
build(){
cd ${srcdir}/linux-$_pkgver
msg "make all"
make ARCH=${ARCH} ${BUILD_FLAGS[*]} -j$(nproc) all
msg "make -C tools/bpf/bpftool vmlinux.h feature-clang-bpf-co-re=1"
make ARCH=${ARCH} ${BUILD_FLAGS[*]} -j$(nproc) -C tools/bpf/bpftool vmlinux.h feature-clang-bpf-co-re=1
}
_package(){
pkgdesc='The Linux kernel and modules - Build with LLVM/CLANG'
depends=(
coreutils
initramfs
kmod
)
optdepends=(
'wireless-regdb: to set the correct wireless channels of your country'
'linux-firmware: firmware images needed for some devices'
)
provides=(
KSMBD-MODULE
VIRTUALBOX-GUEST-MODULES
WIREGUARD-MODULE
)
replaces=(
virtualbox-guest-modules-arch
wireguard-arch
)
cd ${srcdir}/linux-$_pkgver
local kernver="$(<version)"
local modulesdir="${pkgdir}"/usr/lib/modules/${kernver}
msg "Installing boot image..."
# systemd expects to find the kernel here to allow hibernation
# https://github.com/systemd/systemd/commit/edda44605f06a41fb86b7ab8128dcf99161d2344
install -Dm644 "$(make -s image_name)" "$modulesdir/vmlinuz"
# Used by mkinitcpio to name the kernel
echo "$pkgbase" | install -Dm644 /dev/stdin "$modulesdir/pkgbase"
msg "Installing modules..."
ZSTD_CLEVEL=19 make ARCH=${ARCH} ${BUILD_FLAGS[*]} INSTALL_MOD_PATH="${pkgdir}"/usr INSTALL_MOD_STRIP=1 -j$(nproc) modules_install
# remove build and source links
msg "Remove build dir and source dir..."
rm -rf "$modulesdir"/{source,build}
}
_package-headers(){
pkgdesc="Headers and scripts for building modules for the $pkgbase package"
depends=("${pkgbase}" pahole)
cd ${srcdir}/linux-$_pkgver
local builddir="$pkgdir"/usr/lib/modules/"$(<version)"/build
msg "Installing build files..."
install -Dt "$builddir" -m644 .config Makefile Module.symvers System.map *localversion* version vmlinux tools/bpf/bpftool/vmlinux.h
install -Dt "$builddir/kernel" -m644 kernel/Makefile
install -Dt "$builddir/arch/x86" -m644 arch/x86/Makefile
cp -t "$builddir" -a scripts
ln -srt "$builddir" "$builddir/scripts/gdb/vmlinux-gdb.py"
# 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
msg "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
msg "Installing Kconfig files..."
find . -name 'Kconfig*' -exec install -Dm644 {} "$builddir/{}" \;
msg "Removing unneeded architectures..."
local arch
for arch in "$builddir"/arch/*/; do
[[ $arch = */x86/ ]] && continue
msg2 "Removing $(basename "$arch")"
rm -r "$arch"
done
msg "Removing documentation..."
rm -r "$builddir/Documentation"
msg "Removing broken symlinks..."
find -L "$builddir" -type l -printf 'Removing %P\n' -delete
msg "Removing loose objects..."
find "$builddir" -type f -name '*.o' -printf 'Removing %P\n' -delete
msg "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)
msg "Stripping vmlinux..."
strip -v $STRIP_STATIC "$builddir/vmlinux"
msg "Adding symlink..."
mkdir -p "$pkgdir/usr/src"
ln -sr "$builddir" "$pkgdir/usr/src/$pkgbase"
}
sha256sums=('55d2c6c025ebc27810c748d66325dd5bc601e8d32f8581d9e77673529bdacb2e'
'bb5b077af2b1b01440835eec1ac4443fdd483a21505d2eb91d58254b2b49784b'
'59d3f843f0255119a6439bc6047969fb58d568f2aab205a048253f4c93735452'
'86bccfe078176856647b9ece9af7ec2dee5b53ea51b172454de1358c0419947b'
'0bec5e038b49428c5e2176043adc895f6b6c2ba94f4208b51d426a859e7dbcbd')
pkgname=($pkgbase $pkgbase-headers)
for _p in "${pkgname[@]}"; do
eval "package_$_p() {
$(declare -f "_package${_p#$pkgbase}")
_package${_p#$pkgbase}
}"
done
# vim:set ts=8 sts=2 sw=2 et:
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