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#!/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 :)
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# Maintainer: JeremyStarTM <jeremystartm@staropensource.de>
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# Maintainer: Josip Ponjavic <josipponjavic at gmail dot com>
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### BUILD OPTIONS
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# Set to anything but null to activate
# Tweak kernel options prior to a build via menuconfig
: " ${ _makemenuconfig : = "" } "
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# Set to anything but null to activate
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# Tweak kernel options prior to a build via nconfig
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: " ${ _makenconfig : = "" } "
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# Set to anything but null to activate
# Tweak kernel options prior to a build via xconfig
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: " ${ _makexconfig : = "" } "
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# Set to anything but null to activate
# Copies the final kernel configuration before building
: " ${ _copyfinalconfig : = "" } "
# Set to anything but null to activate
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# 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
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: " ${ _localmodcfg : = "" } "
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# Optionally select a sub architecture by number or leave blank which will
# require user interaction during the build. Note that the generic (default)
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# option is 40.
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#
# 1. AMD Opteron/Athlon64/Hammer/K8 (MK8)
# 2. AMD Opteron/Athlon64/Hammer/K8 with SSE3 (MK8SSE3)
# 3. AMD 61xx/7x50/PhenomX3/X4/II/K10 (MK10)
# 4. AMD Barcelona (MBARCELONA)
# 5. AMD Bobcat (MBOBCAT)
# 6. AMD Jaguar (MJAGUAR)
# 7. AMD Bulldozer (MBULLDOZER)
# 8. AMD Piledriver (MPILEDRIVER)
# 9. AMD Steamroller (MSTEAMROLLER)
# 10. AMD Excavator (MEXCAVATOR)
# 11. AMD Zen (MZEN)
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# 12. AMD Zen 2 (MZEN2)
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# 13. AMD Zen 3 (MZEN3)
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# 14. AMD Zen 4 (MZEN4)
# 15. Intel P4 / older Netburst based Xeon (MPSC)
# 16. Intel Core 2 (MCORE2)
# 17. Intel Atom (MATOM)
# 18. Intel Nehalem (MNEHALEM)
# 19. Intel Westmere (MWESTMERE)
# 20. Intel Silvermont (MSILVERMONT)
# 21. Intel Goldmont (MGOLDMONT)
# 22. Intel Goldmont Plus (MGOLDMONTPLUS)
# 23. Intel Sandy Bridge (MSANDYBRIDGE)
# 24. Intel Ivy Bridge (MIVYBRIDGE)
# 25. Intel Haswell (MHASWELL)
# 26. Intel Broadwell (MBROADWELL)
# 27. Intel Skylake (MSKYLAKE)
# 28. Intel Skylake X (MSKYLAKEX)
# 29. Intel Cannon Lake (MCANNONLAKE)
# 30. Intel Ice Lake (MICELAKE)
# 31. Intel Cascade Lake (MCASCADELAKE)
# 32. Intel Cooper Lake (MCOOPERLAKE)
# 33. Intel Tiger Lake (MTIGERLAKE)
# 34. Intel Sapphire Rapids (MSAPPHIRERAPIDS)
# 35. Intel Rocket Lake (MROCKETLAKE)
# 36. Intel Alder Lake (MALDERLAKE)
# 37. Intel Raptor Lake (MRAPTORLAKE)
# 38. Intel Meteor Lake (MMETEORLAKE)
# 39. Intel Emerald Rapids (MEMERALDRAPIDS)
# 40. Generic-x86-64 (GENERIC_CPU)
# 41. Generic-x86-64-v2 (GENERIC_CPU2)
# 42. Generic-x86-64-v3 (GENERIC_CPU3)
# 43. Generic-x86-64-v4 (GENERIC_CPU4)
# 44. Intel-Native optimizations autodetected by the compiler (MNATIVE_INTEL)
# 45. AMD-Native optimizations autodetected by the compiler (MNATIVE_AMD)
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: " ${ _subarch : = "" } "
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# Enable compiling with LLVM
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# Be warned: This is untested
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: " ${ _use_llvm_lto : = "" } "
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# Enable/Disable debug options
# Set 'y' to enable, 'n' to force disable debug options if already enabled in your
# .config file or leave empty to ignore debug options.
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: " ${ _debug : = "" } "
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### BUILD OPTIONS END
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_kerneloptimized_version = ko2
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_kernel_major = 6.8
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_kernel_minor = 10
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_gcc_more_v = '20240221.2'
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_srcname_linux = linux-${ _kernel_major }
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_srcname_clpatches = ${ _kernel_major } .9-1433
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pkgbase = linux-jstm-optimized
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pkgver = linux${ _kernel_major } .${ _kernel_minor } +clear${ _srcname_clpatches //-/_ } +${ _kerneloptimized_version }
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pkgrel = 1
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pkgdesc = "Optimized Linux kernel. Includes Clear Linux's kernel config and some tweaks made by JeremyStarTM."
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arch = ( 'x86_64' )
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url = "https://git.staropensource.de/JeremyStarTM/kernel-optimized"
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license = ( GPL-2.0-only)
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makedepends = ( 'bc' 'cpio' 'gettext' 'git' 'libelf' 'pahole' 'perl' 'python' 'tar' 'xz' 'zstd' )
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if [ -n " $_use_llvm_lto " ] ; then
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makedepends += ( clang llvm lld)
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fi
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options = ( !strip !debug)
if [ " ${ _debug } " = = "y" ] ; then
options = ( !strip)
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fi
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source = (
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" https://cdn.kernel.org/pub/linux/kernel/v6.x/linux- ${ _kernel_major } .tar.xz "
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" https://cdn.kernel.org/pub/linux/kernel/v6.x/patch- ${ _kernel_major } . ${ _kernel_minor } .xz "
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" cl-linux::git+https://github.com/clearlinux-pkgs/linux.git#tag= ${ _srcname_clpatches } "
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" more-uarches- $_gcc_more_v .tar.gz::https://github.com/graysky2/kernel_compiler_patch/archive/ $_gcc_more_v .tar.gz "
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)
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if [ -n " $_use_llvm_lto " ] ; then
BUILD_FLAGS = (
LLVM = 1
LLVM_IAS = 1
)
fi
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export KBUILD_BUILD_HOST = archlinux
export KBUILD_BUILD_USER = $pkgbase
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export KBUILD_BUILD_TIMESTAMP = " $( date -Ru${ SOURCE_DATE_EPOCH : +d @ $SOURCE_DATE_EPOCH } ) "
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prepare( ) {
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echo ":: prepare: prepare() called"
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echo " :: prepare: cding into \" ${ _srcname_linux } \" "
cd " ${ _srcname_linux } " || exit 1
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### Add upstream patches
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echo ":: prepare: adding upstream patches"
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patch -Np1 -i ../patch-${ _kernel_major } .${ _kernel_minor } || true
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### Setting version
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echo ":: prepare: updating version"
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echo " - $pkgrel " > localversion.10-pkgrel
echo " ${ pkgbase #linux } " > localversion.20-pkgname
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### Add Clear Linux patches
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echo ":: prepare: patching kernel with Clear Linux patches"
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# shellcheck disable=SC2013
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for i in $( grep '^Patch' " ${ srcdir } " /cl-linux/linux.spec| grep -Ev '^Patch0132|^Patch0109|^Patch0118|^Patch0113|^Patch0138|^Patch0139|^Patch0147' | sed -n 's/.*: //p' ) ; do
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if [ -n " $_use_llvm_lto " ] ; then
if [ " ${ i } " = = "0162-extra-optmization-flags.patch" ] ; then
continue
fi
fi
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echo " :: prepare: applying patch ${ i } ... "
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patch -Np1 -i " $srcdir /cl-linux/ ${ i } " || true
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done
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### Copy config
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echo ":: prepare: copying kernel-optimized kconfig into kernel repository"
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cp -Tf " ${ startdir } /kconfig " ./.config
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if [ -n " $_use_llvm_lto " ] ; then
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echo ":: prepare: enabling LLVM support"
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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
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fi
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if [ " $_debug " = = "y" ] ; then
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echo ":: prepare: enabling debugging features"
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scripts/config -e DEBUG_INFO \
-e DEBUG_INFO_BTF \
-e DEBUG_INFO_DWARF4 \
-e PAHOLE_HAS_SPLIT_BTF \
-e DEBUG_INFO_BTF_MODULES
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elif [ " $_debug " = = "n" ] ; then
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echo ":: prepare: disabling debugging features"
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scripts/config -d DEBUG_INFO \
-d DEBUG_INFO_BTF \
-d DEBUG_INFO_DWARF4 \
-d PAHOLE_HAS_SPLIT_BTF \
-d DEBUG_INFO_BTF_MODULES
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fi
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echo ":: prepare: running olddefconfig"
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make ${ BUILD_FLAGS [*] } olddefconfig
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diff -u $srcdir /cl-linux/config .config || :
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# https://github.com/graysky2/kernel_compiler_patch
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# make sure to apply after olddefconfig to allow the next section
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echo ":: prepare: patching kernel with kernel_compiler_patch"
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patch -Np1 -i " $srcdir /kernel_compiler_patch- $_gcc_more_v /more-uarches-for-kernel-6.8-rc4+.patch "
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if [ -n " $_subarch " ] ; then
# user wants a subarch so apply choice defined above interactively via 'yes'
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echo ":: prepare: selecting sub architecture (automatic)"
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yes " $_subarch " | make ${ BUILD_FLAGS [*] } oldconfig
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else
# no subarch defined so allow user to pick one
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echo ":: prepare: selecting sub architecture (intervention required)"
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make ${ BUILD_FLAGS [*] } oldconfig
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fi
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### Optionally load needed modules for the make localmodconfig
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# See https://aur.archlinux.org/packages/modprobed-db
if [ -n " $_localmodcfg " ] ; then
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if [ -e " $HOME /.config/modprobed.db " ] ; then
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echo ":: prepare: executing localmodconfig"
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make ${ BUILD_FLAGS [*] } LSMOD = $HOME /.config/modprobed.db localmodconfig
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else
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echo " :: prepare: error: no modprobed.db found at \" ${ HOME } /.config/modprobed.db\", skipping "
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fi
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fi
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echo ":: prepare: writing kernel version"
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make -s kernelrelease > version
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[ [ -z " $_makemenuconfig " ] ] || (
echo ":: prepare: executing menuconfig"
make ${ BUILD_FLAGS [*] } menuconfig
)
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[ [ -z " $_makexconfig " ] ] || (
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echo ":: prepare: executing xconfig"
make ${ BUILD_FLAGS [*] } xconfig
)
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[ [ -z " $_makenconfig " ] ] || (
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echo ":: prepare: executing nconfig"
make ${ BUILD_FLAGS [*] } nconfig
)
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### Save configuration for later reuse
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[ [ -z " $_copyfinalconfig " ] ] || (
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echo ":: prepare: copying configuration file into kernel-optimized repository"
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cp -Tf ./.config " ${ startdir } /kconfig-final "
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)
echo ":: prepare: prepare() finished"
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}
build( ) {
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echo ":: build: build() called"
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echo " :: build: cding into \" ${ _srcname_linux } \" "
cd " ${ _srcname_linux } " || exit 1
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echo " :: build: starting compilation (make ${ BUILD_FLAGS [*] } all) "
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make ${ BUILD_FLAGS [*] } all
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echo ":: build: build() finished"
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}
_package( ) {
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echo ":: _package: _package() called"
echo ":: _package: updating package information"
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pkgdesc = " ${ pkgdesc } This package includes the kernel and compiled modules. "
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depends = ( 'coreutils' 'kmod' 'initramfs' )
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optdepends = ( 'wireless-regdb: to set the correct wireless channels of your country'
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'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' )
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provides = ( VIRTUALBOX-GUEST-MODULES WIREGUARD-MODULE KSMBD-MODULE)
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install = linux.install
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echo " :: _package: cding into \" ${ _srcname_linux } \" "
cd " $_srcname_linux " || exit 1
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local modulesdir = " $pkgdir /usr/lib/modules/ $( <version) "
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echo ":: _package: installing boot image"
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# systemd expects to find the kernel here to allow hibernation
# https://github.com/systemd/systemd/commit/edda44605f06a41fb86b7ab8128dcf99161d2344
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install -Dm644 " $( make -s image_name) " " $modulesdir /vmlinuz "
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# Used by mkinitcpio to name the kernel
echo " $pkgbase " | install -Dm644 /dev/stdin " $modulesdir /pkgbase "
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echo ":: _package: installing modules"
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ZSTD_CLEVEL = 19 make ${ BUILD_FLAGS [*] } INSTALL_MOD_PATH = " $pkgdir /usr " INSTALL_MOD_STRIP = 1 \
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DEPMOD = /doesnt/exist modules_install # Suppress depmod
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# remove build link
rm " $modulesdir " /build
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echo ":: _package: _package() finished"
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}
_package-headers( ) {
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echo ":: _package-headers: _package-headers() called"
echo ":: _package-headers: updating package information"
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pkgdesc = " ${ pkgdesc } This package includes various headers and scripts for building modules. "
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depends = ( pahole)
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echo " :: _package-headers: cding into \" ${ _srcname_linux } \" "
cd " ${ _srcname_linux } " || exit 1
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local builddir = " $pkgdir /usr/lib/modules/ $( <version) /build "
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echo ":: _package-headers: installing build files"
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install -Dt " $builddir " -m644 .config Makefile Module.symvers System.map \
localversion.* version vmlinux
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install -Dt " $builddir /kernel " -m644 kernel/Makefile
install -Dt " $builddir /arch/x86 " -m644 arch/x86/Makefile
cp -t " $builddir " -a scripts
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# required when STACK_VALIDATION is enabled
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install -Dt " $builddir /tools/objtool " tools/objtool/objtool
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# required when DEBUG_INFO_BTF_MODULES is enabled
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if [ -f tools/bpf/resolve_btfids/resolve_btfids ] ; then
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install -Dt " $builddir /tools/bpf/resolve_btfids " tools/bpf/resolve_btfids/resolve_btfids
fi
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echo ":: _package-headers: installing headers"
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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
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# https://bugs.archlinux.org/task/13146
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install -Dt " $builddir /drivers/media/i2c " -m644 drivers/media/i2c/msp3400-driver.h
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# https://bugs.archlinux.org/task/20402
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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
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# https://bugs.archlinux.org/task/71392
install -Dt " $builddir /drivers/iio/common/hid-sensors " -m644 drivers/iio/common/hid-sensors/*.h
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echo ":: _package-headers: installing KConfig files"
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find . -name 'Kconfig*' -exec install -Dm644 { } " $builddir /{} " \;
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echo ":: _package-headers: removing unneeded architectures"
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local arch
for arch in " $builddir " /arch/*/; do
[ [ $arch = */x86/ ] ] && continue
echo " Removing $( basename " $arch " ) "
rm -r " $arch "
done
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echo ":: _package-headers: removing documentation"
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rm -r " $builddir /Documentation "
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echo ":: _package-headers: removing broken symlinks"
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find -L " $builddir " -type l -printf 'Removing %P\n' -delete
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echo ":: _package-headers: removing loose objects"
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find " $builddir " -type f -name '*.o' -printf 'Removing %P\n' -delete
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echo ":: _package-headers: stripping build tools"
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local file
while read -rd '' file; do
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case " $( file -Sib " $file " ) " in
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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)
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echo ":: _package-headers: stripping vmlinux"
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strip -v $STRIP_STATIC " $builddir /vmlinux "
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echo ":: _package-headers: adding symlink"
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mkdir -p " $pkgdir /usr/src "
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ln -sr " $builddir " " $pkgdir /usr/src/ $pkgbase "
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echo ":: _package-headers: _package-headers() finished"
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}
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pkgname = ( " $pkgbase " " $pkgbase -headers " )
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for _p in " ${ pkgname [@] } " ; do
eval " package_ $_p () {
$( declare -f " _package ${ _p # $pkgbase } " )
_package${ _p # $pkgbase }
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} "
done
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sha256sums = ( 'c969dea4e8bb6be991bbf7c010ba0e0a5643a3a8d8fb0a2aaa053406f1e965f3'
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'bd7d008c5d73b4d26b8d8ea3f52fbe1aff439c01dd67ecfb8075d790dfbb5aac'
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'SKIP'
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'1d3ac3e581cbc5108f882fcdc75d74f7f069654c71bad65febe5ba15a7a3a14f' )