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#!/bin/mkpkg
# description: Linux kernel
# url: https://www.kernel.org/
#
# Not in pkg.conf's portdir list, deliberately: `sysup` must never
# decide to install a kernel. Build by hand, addpkg/delpkg by hand.
# Do not "helpfully" add /usr/src to the portdir list.
#
# NM wrapper: with CONFIG_MODVERSIONS the symversion gate runs
# llvm-nm $obj | grep -q ' __export_symbol_'
# grep -q exits on first match, llvm-nm's next write gets EPIPE, and
# LLVM 23.1.0 turns that into "LLVM ERROR: IO failure on output stream"
# followed by a NULL-deref SIGSEGV instead of exiting quietly. Harmless
# -- grep already had its answer, symversions are correct -- but it
# prints ~82 "Segmentation fault" lines per build. The wrapper maps
# signal death to 0. Drop it when llvm-nm handles EPIPE properly.
name=linux-6.18.52
_name=linux
version=6.18.52
release=1
source=(https://cdn.kernel.org/pub/linux/kernel/v6.x/$_name-$version.tar.xz
config)
sha256sums=(
"2b69564f7d4fea0c859b1959ba33709ee6e9139bd100e30a853b57159a8221b8"
"094361c455ec33eced396ce208b550cf1259c989db65201108786bc3f0dc7445"
)
build() {
# A kernel controls its own flags; nothing from mkpkg.conf reaches it.
unset CFLAGS CXXFLAGS LDFLAGS CPPFLAGS PKG_CONFIG_PATH MAKEFLAGS
_nm=$SRC/nm-epipe
rm -f $_nm
printf '%s\n' \
'#!/bin/sh' \
'llvm-nm "$@"' \
'_s=$?' \
'if [ $_s -gt 128 ]; then exit 0; fi' \
'exit $_s' > $_nm
chmod 755 $_nm
test -s $_nm || { echo "nm wrapper is empty"; return 1; }
cd $_name-$version
for _c in /etc/ports/linux/config-$version \
/etc/ports/linux/config-${version%.*} \
/etc/ports/linux/config \
$SRC/config; do
[ -f "$_c" ] && { echo "config: $_c"; cp "$_c" .config; break; }
done
make LLVM=1 olddefconfig
make LLVM=1 NM=$_nm -j$(nproc)
make LLVM=1 NM=$_nm INSTALL_MOD_PATH=$PKG INSTALL_MOD_STRIP=1 modules_install
install -Dm644 arch/x86/boot/bzImage $PKG/boot/vmlinuz-$version
install -Dm644 System.map $PKG/boot/System.map-$version
install -Dm644 .config $PKG/boot/config-$version
rm -f $PKG/lib/modules/$version/build
rm -f $PKG/lib/modules/$version/source
}
signify() {
untrusted comment: public key
RWTZ9IduCSQ/mL8337TEUinPwT92xFEUpD92hkS7IxcOnzTt9QdpohT3
}
# vim: filetype=sh
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