Arch Linux User Repository

New issue arrived. After switching to sd-boot from grub I can not generate boot menu entry for linux-cachyos-tt-lto. systemd-boot-manager is installed. Running sdboot-manage gen doesn't help. Kernel successfully compiles, installs, but menu entry is not generated. Other kernels from repository correctly generate boot menu entries. Hmm, please some guidance. What am I doing wrong? Maybe something in kernel config prevents menu entry generation? No idea. It was working with grub with no problem.

Thank You for your time and exhausted answer. I've tried "normal build" process and I've got an error:

makepkg -si
==> Making package: linux-cachyos-tt-lto 5.19.3-1 (Tue Aug 23 20:13:56 2022) ==> Checking runtime dependencies... ==> Checking buildtime dependencies... ==> Retrieving sources... -> Found linux-5.19.3.tar.xz -> Found config -> Found auto-cpu-optimization.sh -> Found 0001-cachyos-base-all.patch -> Found 0001-tt-cachy.patch ==> Validating source files with sha256sums... linux-5.19.3.tar.xz ... Passed config ... Passed auto-cpu-optimization.sh ... Passed 0001-cachyos-base-all.patch ... Passed 0001-tt-cachy.patch ... FAILED ==> ERROR: One or more files did not pass the validity check!

Any idea what is wrong?

@miq

I don't see here a issue. It seems probably to be a issue from manjaro's pamac. The kernel is build successfully. You probably are able to install it with sudo pacman -U then the filenames where it got placed.

Personally I dont use manjaro and never used it. Maybe you should try instead of using "pamac build" the normal build process.

git clone https://aur.archlinux.org/linux-cachyos-tt.git
cd linux-cachyos-tt
nano PKGBUILD (changing parameters you wish)
makepkg -si

All kernels from CachyOS has been built fine on our buildserver. You can find them here: https://mirror.cachyos.org/repo/x86_64_v3/cachyos-v3/

You can also the install the kernels from there, if you add our keyring. Adding the complete repo is not a good idea, Ive never tested it against manjaro since we provide all packages with a optimized march (x86-64-v3)

For getting the keyring use:

sudo pacman-key --recv-keys F3B607488DB35A47 --keyserver keyserver.ubuntu.com
sudo pacman-key --lsign-key F3B607488DB35A47

Then just install the package you want with:

sudo pacman -U 'https://mirror.cachyos.org/repo/x86_64_v3/cachyos-v3/linux-cachyos-tt-lto-5.19.2-1-x86_64_v3.pkg.tar.zst' 'https://mirror.cachyos.org/repo/x86_64_v3/cachyos-v3/linux-cachyos-tt-lto-headers-5.19.2-1-x86_64_v3.pkg.tar.zst'

If you want to build it yourself, just follow the steps above. It should work.

Forgot to mention I use Manjaro.

Anyone?

I can not successfully compile this kernel with llvm/lto. It stucks on "cleaning up" Anyone help? This is my pkgbuild config file:

Maintainer: Peter Jung ptr1337 admin@ptr1337.dev && Piotr Gorski piotrgorski@cachyos.org

Contributor: Jan Alexander Steffens (heftig) jan.steffens@gmail.com

Contributor: Tobias Powalowski tpowa@archlinux.org

Contributor: Thomas Baechler thomas@archlinux.org

Selecting the CPU scheduler

ATTENTION - one of seven predefined values should be selected!

'bmq' - select 'BitMap Queue CPU scheduler'

'pds' - select 'Priority and Deadline based Skip list multiple queue CPU scheduler'

'cacule' - select 'CacULE scheduler'

'cacule-rdb' - select 'CacULE-RDB scheduler'

'bore' - select 'Burst-Oriented Response Enhancer'

'cfs' - select 'Completely Fair Scheduler'

'tt' - select 'Task Type Scheduler by Hamad Marri'

'hardened' - select 'BORE Scheduler hardened' ## kernel with hardened config and hardening patches with the bore scheduler

_cpusched='tt'

BUILD OPTIONS

Set these variables to ANYTHING that is not null to enable them

Tweak kernel options prior to a build via nconfig

_makenconfig=

Tweak kernel options prior to a build via menuconfig

_makemenuconfig=

Tweak kernel options prior to a build via xconfig

_makexconfig=

Tweak kernel options prior to a build via gconfig

_makegconfig=

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

Compile ONLY used modules to VASTLYreduce 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 script a try: https://aur.archlinux.org/packages/modprobed-db

This PKGBUILD read the database kept if it exists

More at this wiki page ---> https://wiki.archlinux.org/index.php/Modprobed-db

_localmodcfg=y

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=

Enable KBUILD_CFLAGS -O3

_cc_harder=y

Set performance governor as default

_per_gov=

Enable TCP_CONG_BBR2

_tcp_bbr2=y

Running with a 1000HZ, 750Hz, 600 Hz or 500Hz tick rate

_HZ_ticks=750

Choose between perodic, idle or full

Full tickless can give higher performances in various cases but, depending on hardware, lower consistency.

_tickrate=full

Choose between full(low-latency), voluntary or server

_preempt=full

Disable MQ-Deadline I/O scheduler

_mq_deadline_disable=y

Disable Kyber I/O scheduler

_kyber_disable=y

Enable multigenerational LRU

ATTENTION - one of three predefined values should be selected!

'standard' - enable multigenerational LRU

'stats' - enable multigenerational LRU with stats

'none' - disable multigenerational LRU

_lru_config='standard'

Enable DAMON

_damon=y

Enable Linux Random Number Generator

_lrng_enable=y

CPU compiler optimizations - Defaults to prompt at kernel config if left empty

AMD CPUs : "k8" "k8sse3" "k10" "barcelona" "bobcat" "jaguar" "bulldozer" "piledriver" "steamroller" "excavator" "zen" "zen2" "zen3"

Intel CPUs : "mpsc"(P4 & older Netburst based Xeon) "atom" "core2" "nehalem" "westmere" "silvermont" "sandybridge" "ivybridge" "haswell" "broadwell" "skylake" "skylakex" "cannonlake" "icelake" "goldmont" "goldmontplus" "cascadelake" "cooperlake" "tigerlake" "sapphirerapids" "rocketlake" "alderlake"

Other options :

- "native_amd" (use compiler autodetection - Selecting your arch manually in the list above is recommended instead of this option)

- "native_intel" (use compiler autodetection and will prompt for P6_NOPS - Selecting your arch manually in the list above is recommended instead of this option)

- "generic" (kernel's default - to share the package between machines with different CPU µarch as long as they are x86-64)

Or use the _use_auto_optimization with _use_auto_optimization=y

_processor_opt=

_use_auto_optimization=y

disable debug to lower the size of the kernel

_disable_debug=y

Enable zram/zswap ZSTD compression

_zstd_compression=y

Selecting the ZSTD kernel and modules compression level

ATTENTION - one of two predefined values should be selected!

'ultra' - highest compression ratio

'normal' - standard compression ratio

WARNING: the ultra settings can sometimes

be counterproductive in both size and speed.

_zstd_level_value='normal'

Clang LTO mode, only available with the "llvm" compiler - options are "no", "full" or "thin".

"full: uses 1 thread for Linking, slow and uses more memory, theoretically with the highest performance gains."

"thin: uses multiple threads, faster and uses less memory, may have a lower runtime performance than Full."

_use_llvm_lto=full

KCFI is a proposed forward-edge control-flow integrity scheme for

Clang, which is more suitable for kernel use than the existing CFI

scheme used by CONFIG_CFI_CLANG. KCFI doesn't require LTO, doesn't

alter function references to point to a jump table, and won't break

function address equality.

ATTENTION!: you do need a patched llvm for the usage of kcfi,

you can find a patched llvm-git in the cachyos-repo's.

The packagename is called "llvm-kcfi"

ATTENTION!: This is very experimental and could fail and the compilation or have other bugs in the kernel

_use_kcfi=

Build the zfs module builtin in to the kernel

_build_zfs=

Enable bcachefs

_bcachefs=

if [ -n "$_use_llvm_lto" ]; then pkgsuffix=cachyos-${_cpusched}-lto pkgbase=linux-$pkgsuffix

else pkgsuffix=cachyos-${_cpusched} pkgbase=linux-$pkgsuffix fi _major=5.19 _minor=1

_minorc=$((_minor+1))

_rcver=rc8

pkgver=${_major}.${_minor} _stable=${_major}.${_minor}

_stable=${_major}

_stablerc=${_major}-${_rcver}

_srcname=linux-${_stable}

_srcname=linux-${_major}

pkgdesc='Linux TT scheduler Kernel by CachyOS with other patches and improvements' pkgrel=1 _kernver=$pkgver-$pkgrel arch=('x86_64' 'x86_64_v3') url="https://github.com/CachyOS/linux-cachyos" license=('GPL2') options=('!strip') makedepends=('bc' 'libelf' 'pahole' 'cpio' 'perl' 'tar' 'xz' 'zstd' 'gcc' 'gcc-libs' 'glibc' 'binutils' 'make' 'patch')

LLVM makedepends

if [ -n "$_use_llvm_lto" ]; then makedepends+=(clang llvm lld python) BUILD_FLAGS=( CC=clang LD=ld.lld LLVM=1 LLVM_IAS=1 ) fi

ZFS makedepends

if [ -n "$_build_zfs" ]; then makedepends+=(git)

fi _patchsource="https://raw.githubusercontent.com/cachyos/kernel-patches/master/${_major}" source=( "https://cdn.kernel.org/pub/linux/kernel/v${pkgver%%.*}.x/${_srcname}.tar.xz" "config" "auto-cpu-optimization.sh" "${_patchsource}/all/0001-cachyos-base-all.patch")

ZFS Support

if [ -n "$_build_zfs" ]; then source+=("git+https://github.com/openzfs/zfs.git#commit=17512aba0c33f73b74e5bd10f11e6d41c10f709f") fi

BMQ Scheduler

if [ "$_cpusched" = "bmq" ]; then source+=("${_patchsource}/sched/0001-prjc-cachy.patch") fi

PDS Scheduler

if [ "$_cpusched" = "pds" ]; then source+=("${_patchsource}/sched/0001-prjc-cachy.patch") fi

BORE Scheduler

if [ "$_cpusched" = "bore" ]; then source+=("${_patchsource}/sched/0001-bore.patch") fi

CacULE Scheduler

if [ "$_cpusched" = "cacule" ]; then source+=("${_patchsource}/sched/0001-cacULE-cachy.patch") fi

CacULE-RDB Scheduler

if [ "$_cpusched" = "cacule-rdb" ]; then source+=("${_patchsource}/sched/0001-cacULE-cachy.patch") fi

ä TT Scheduler

if [ "$_cpusched" = "tt" ]; then source+=("${_patchsource}/sched/0001-tt-cachy.patch") fi

Hardened Patches with BORE Scheduler

if [ "$_cpusched" = "hardened" ]; then source+=("${_patchsource}/sched/0001-bore.patch" "${_patchsource}/misc/0001-hardened.patch") fi

Kernel CFI Patch

if [ -n "$_use_kcfi" ]; then source+=("${_patchsource}/misc/0001-kcfi.patch") depends+=(llvm-git llvm-libs-git python) BUILD_FLAGS=( CC=clang LD=ld.lld LLVM=1 ) fi

bcachefs Support

if [ -n "$_bcachefs" ]; then source+=("${_patchsource}/misc/0001-bcachefs-after-lru.patch") 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() {

cd ${srcdir}/$_srcname

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

echo "Setting config..."
cp ../config .config

### Select CPU optimization
if [ -n "$_processor_opt" ]; then
    MARCH=$(echo $_processor_opt|tr '[:lower:]' '[:upper:]'&&echo)
    MARCH2=M${MARCH}
    scripts/config -k --disable CONFIG_GENERIC_CPU
    scripts/config -k --enable CONFIG_${MARCH2}
fi

### Use autooptimization
if [ -n "$_use_auto_optimization" ]; then
    "${srcdir}"/auto-cpu-optimization.sh
fi

### Selecting the CPU scheduler
if [ "$_cpusched" = "bmq" ]; then
    echo "Selecting BMQ CPU scheduler..."
    scripts/config --enable SCHED_ALT \
        --enable SCHED_BMQ \
        --disable SCHED_PDS
elif [ "$_cpusched" = "pds" ]; then
    echo "Selecting PDS CPU scheduler..."
    scripts/config --enable SCHED_ALT \
        --disable SCHED_BMQ \
        --enable SCHED_PDS
elif [ "$_cpusched" = "cacule" ]; then
    echo "Selecting CacULE scheduler..."
    scripts/config --enable CACULE_SCHED \
        --disable CACULE_RDB
elif [ "$_cpusched" = "cacule-rdb" ]; then
    echo "Selecting CacULE-RDB scheduler..."
    scripts/config --enable CACULE_SCHED \
        --enable CACULE_RDB \
        --set-val RDB_INTERVAL 19
elif [ "$_cpusched" = "bore" ]; then
    echo "Selecting BORE Scheduler..."
    scripts/config --enable SCHED_BORE
elif [ "$_cpusched" = "tt" ]; then
    echo "Selecting TT Scheduler..."
    scripts/config --enable TT_SCHED \
        --enable TT_ACCOUNTING_STATS
elif [ "$_cpusched" = "cfs" ]; then
    echo "Selecting Completely Fair Scheduler..."
elif [ "$_cpusched" = "hardened" ]; then
    echo "Selecting hardened patches with the BORE Scheduler..."
else
    if [ -n "$_cpusched" ]; then
        error "The value $_cpusched is invalid. Choose the correct one again."
    else
        error "The value is empty. Choose the correct one again."
    fi
    error "Selecting the CPU scheduler failed!"
    exit
fi

### Enable KCFI
if [ -n "$_use_kcfi" ]; then
    echo "Enabling kCFI"
    scripts/config --enable ARCH_SUPPORTS_CFI_CLANG \
        --enable CFI_CLANG
fi

### Select LLVM level
if [ "$_use_llvm_lto" = "thin" ]; then
    echo "Enabling LLVM THIN LTO..."
    scripts/config --enable LTO \
        --enable LTO_CLANG \
        --enable ARCH_SUPPORTS_LTO_CLANG \
        --enable ARCH_SUPPORTS_LTO_CLANG_THIN \
        --disable LTO_NONE \
        --enable HAS_LTO_CLANG \
        --disable LTO_CLANG_FULL \
        --enable LTO_CLANG_THIN \
        --enable HAVE_GCC_PLUGINS
elif [ "$_use_llvm_lto" = "full" ]; then
    echo "Enabling LLVM FULL LTO..."
    scripts/config --enable LTO \
        --enable LTO_CLANG \
        --enable ARCH_SUPPORTS_LTO_CLANG \
        --enable ARCH_SUPPORTS_LTO_CLANG_THIN \
        --disable LTO_NONE \
        --enable HAS_LTO_CLANG \
        --enable LTO_CLANG_FULL \
        --disable LTO_CLANG_THIN \
        --enable HAVE_GCC_PLUGINS
else
    scripts/config --enable LTO_NONE
fi

### Select tick rate
if [ "$_HZ_ticks" = "1000" ]; then
    echo "Setting tick rate to 1k Hz..."
    scripts/config --disable HZ_300 \
        --enable HZ_1000 \
        --set-val HZ 1000
elif [ "$_HZ_ticks" = "750" ]; then
    echo "Setting tick rate to 750Hz..."
    scripts/config --disable HZ_300 \
        --enable HZ_750 \
        --set-val HZ 750
elif [ "$_HZ_ticks" = "600" ]; then
    echo "Setting tick rate to 600Hz..."
    scripts/config --disable HZ_300 \
        --enable HZ_600 \
        --set-val HZ 600
elif [ "$_HZ_ticks" = "500" ]; then
    echo "Setting tick rate to 500Hz..."
    scripts/config --disable HZ_300 \
        --enable HZ_500 \
        --set-val HZ 500
else
    echo "Setting tick rate to 300Hz..."
    scripts/config --enable HZ_300 \
        --set-val HZ 300
fi

### Disable NUMA
if [ -n "$_NUMAdisable" ]; then
    echo "Disabling NUMA from kernel config..."
    scripts/config --disable NUMA \
        --disable AMD_NUMA \
        --disable X86_64_ACPI_NUMA \
        --disable NODES_SPAN_OTHER_NODES \
        --disable NUMA_EMU \
        --disable NEED_MULTIPLE_NODES \
        --disable USE_PERCPU_NUMA_NODE_ID \
        --disable ACPI_NUMA \
        --disable ARCH_SUPPORTS_NUMA_BALANCING \
        --disable NODES_SHIFT \
        --undefine NODES_SHIFT \
        --disable NEED_MULTIPLE_NODES
fi

### Disable MQ Deadline I/O scheduler
if [ -n "$_mq_deadline_disable" ]; then
    echo "Disabling MQ-Deadline I/O scheduler..."
    scripts/config --disable MQ_IOSCHED_DEADLINE
fi

### Disable Kyber I/O scheduler
if [ -n "$_kyber_disable" ]; then
    echo "Disabling Kyber I/O scheduler..."
    scripts/config --disable MQ_IOSCHED_KYBER
fi

### Select performance governor
if [ -n "$_per_gov" ]; then
    echo "Setting performance governor..."
    scripts/config --disable CPU_FREQ_DEFAULT_GOV_SCHEDUTIL \
        --enable CPU_FREQ_DEFAULT_GOV_PERFORMANCE
fi

### Select tick type
if [ "$_tickrate" = "periodic" ]; then
    echo "Enabling periodic ticks..."
    scripts/config --disable NO_HZ_IDLE \
        --disable NO_HZ_FULL \
        --disable NO_HZ \
        --disable NO_HZ_COMMON \
        --enable HZ_PERIODIC
elif [ "$_tickrate" = "idle" ]; then
    echo "Enabling idle ticks.."
    scripts/config --disable HZ_PERIODIC \
        --disable NO_HZ_FULL \
        --enable NO_HZ_IDLE \
        --enable NO_HZ \
        --enable NO_HZ_COMMON
elif [ "$_tickrate" = "full" ]; then
    echo "Enabling full ticks..."
    scripts/config --disable HZ_PERIODIC \
        --disable NO_HZ_IDLE \
        --disable CONTEXT_TRACKING_FORCE \
        --enable NO_HZ_FULL_NODEF \
        --enable NO_HZ_FULL \
        --enable NO_HZ \
        --enable NO_HZ_COMMON \
        --enable CONTEXT_TRACKING
else
    if [ -n "$_tickrate" ]; then
        error "The value $_tickrate is invalid. Choose the correct one again."
    else
        error "The value is empty. Choose the correct one again."
    fi
    error "Selecting the tick rate failed!"
    exit
fi

### Select preempt type
if [ "$_preempt" = "full" ]; then
    echo "Enabling low latency preempt..."
    scripts/config --enable PREEMPT_BUILD \
        --disable PREEMPT_NONE \
        --disable PREEMPT_VOLUNTARY \
        --enable PREEMPT \
        --enable PREEMPT_COUNT \
        --enable PREEMPTION \
        --enable PREEMPT_DYNAMIC
elif [ "$_preempt" = "voluntary" ]; then
    echo "Enabling voluntary preempt..."
    scripts/config --enable PREEMPT_BUILD \
        --disable PREEMPT_NONE \
        --enable PREEMPT_VOLUNTARY \
        --disable PREEMPT \
        --enable PREEMPT_COUNT \
        --enable PREEMPTION \
        --disable PREEMPT_DYNAMIC
elif [ "$_preempt" = "server" ]; then
    echo "Enabling server preempt..."
    scripts/config --enable PREEMPT_NONE_BUILD \
        --enable PREEMPT_NONE \
        --disable PREEMPT_VOLUNTARY \
        --disable PREEMPT \
        --disable PREEMPT_COUNT \
        --disable PREEMPTION \
        --disable PREEMPT_DYNAMIC
else
    if [ -n "$_preempt" ]; then
        error "The value $_preempt is invalid. Choose the correct one again."
    else
        error "The value is empty. Choose the correct one again."
    fi
    error "Selecting PREEMPT failed!"
    exit
fi

### Enable O3
if [ -n "$_cc_harder" ]; then
    echo "Enabling KBUILD_CFLAGS -O3..."
    scripts/config --disable CC_OPTIMIZE_FOR_PERFORMANCE \
        --enable CC_OPTIMIZE_FOR_PERFORMANCE_O3
fi

### Enable bbr2
if [ -n "$_tcp_bbr2" ]; then
    echo "Disabling TCP_CONG_CUBIC..."
    scripts/config --module TCP_CONG_CUBIC \
        --disable DEFAULT_CUBIC \
        --enable TCP_CONG_BBR2 \
        --enable DEFAULT_BBR2 \
        --set-str DEFAULT_TCP_CONG bbr2
fi

### Select LRU config
if [ "$_lru_config" = "standard" ]; then
   echo "Enabling multigenerational LRU..."
   scripts/config --enable CONFIG_LRU_GEN \
       --enable CONFIG_LRU_GEN_ENABLED \
       --disable CONFIG_LRU_GEN_STATS
elif [ "$_lru_config" = "stats" ]; then
   echo "Enabling multigenerational LRU with stats..."
   scripts/config --enable CONFIG_LRU_GEN \
       --enable CONFIG_LRU_GEN_ENABLED \
       --enable CONFIG_LRU_GEN_STATS
elif [ "$_lru_config" = "none" ]; then
   echo "Disabling multigenerational LRU..."
   scripts/config --disable CONFIG_LRU_GEN
else
    if [ -n "$_lru_config" ]; then
       error "The value $_lru_config is invalid. Choose the correct one again."
    else
       error "The value is empty. Choose the correct one again."
    fi
     error "Enabling multigenerational LRU failed!"
     exit
fi

### Enable DAMON
if [ -n "$_damon" ]; then
    echo "Enabling DAMON..."
    scripts/config --enable DAMON \
        --enable DAMON_VADDR \
        --enable DAMON_DBGFS \
        --enable DAMON_SYSFS \
        --enable DAMON_PADDR \
        --enable DAMON_RECLAIM \
        --enable DAMON_LRU_SORT
fi

### Enable LRNG
if [ -n "$_lrng_enable" ]; then
    echo "Enabling Linux Random Number Generator ..."
    scripts/config --disable RANDOM_DEFAULT_IMPL \
        --enable LRNG \
        --enable LRNG_SHA256 \
        --enable LRNG_COMMON_DEV_IF \
        --enable LRNG_DRNG_ATOMIC \
        --enable LRNG_SYSCTL \
        --enable LRNG_RANDOM_IF \
        --module LRNG_KCAPI_IF \
        --module LRNG_HWRAND_IF \
        --enable LRNG_DEV_IF \
        --enable LRNG_RUNTIME_ES_CONFIG \
        --enable LRNG_IRQ_DFLT_TIMER_ES \
        --disable LRNG_SCHED_DFLT_TIMER_ES \
        --enable LRNG_TIMER_COMMON \
        --disable LRNG_COLLECTION_SIZE_256 \
        --disable LRNG_COLLECTION_SIZE_512 \
        --enable LRNG_COLLECTION_SIZE_1024 \
        --disable LRNG_COLLECTION_SIZE_2048 \
        --disable LRNG_COLLECTION_SIZE_4096 \
        --disable LRNG_COLLECTION_SIZE_8192 \
        --set-val LRNG_COLLECTION_SIZE 1024 \
        --enable LRNG_HEALTH_TESTS \
        --set-val LRNG_RCT_CUTOFF 31 \
        --set-val LRNG_APT_CUTOFF 325 \
        --enable LRNG_IRQ \
        --enable LRNG_CONTINUOUS_COMPRESSION_ENABLED \
        --disable LRNG_CONTINUOUS_COMPRESSION_DISABLED \
        --enable LRNG_ENABLE_CONTINUOUS_COMPRESSION \
        --enable LRNG_SWITCHABLE_CONTINUOUS_COMPRESSION \
        --set-val LRNG_IRQ_ENTROPY_RATE 256 \
        --enable LRNG_JENT \
        --set-val LRNG_JENT_ENTROPY_RATE 16 \
        --enable LRNG_CPU \
        --set-val LRNG_CPU_FULL_ENT_MULTIPLIER 1 \
        --set-val LRNG_CPU_ENTROPY_RATE 8 \
        --enable LRNG_SCHED \
        --set-val LRNG_SCHED_ENTROPY_RATE 4294967295 \
        --enable LRNG_DRNG_CHACHA20 \
        --module LRNG_DRBG \
        --module LRNG_DRNG_KCAPI \
        --enable LRNG_SWITCH \
        --enable LRNG_SWITCH_HASH \
        --module LRNG_HASH_KCAPI \
        --enable LRNG_SWITCH_DRNG \
        --module LRNG_SWITCH_DRBG \
        --module LRNG_SWITCH_DRNG_KCAPI \
        --enable LRNG_DFLT_DRNG_CHACHA20 \
        --disable LRNG_DFLT_DRNG_DRBG \
        --disable LRNG_DFLT_DRNG_KCAPI \
        --enable LRNG_TESTING_MENU \
        --disable LRNG_RAW_HIRES_ENTROPY \
        --disable LRNG_RAW_JIFFIES_ENTROPY \
        --disable LRNG_RAW_IRQ_ENTROPY \
        --disable LRNG_RAW_RETIP_ENTROPY \
        --disable LRNG_RAW_REGS_ENTROPY \
        --disable LRNG_RAW_ARRAY \
        --disable LRNG_IRQ_PERF \
        --disable LRNG_RAW_SCHED_HIRES_ENTROPY \
        --disable LRNG_RAW_SCHED_PID_ENTROPY \
        --disable LRNG_RAW_SCHED_START_TIME_ENTROPY \
        --disable LRNG_RAW_SCHED_NVCSW_ENTROPY \
        --disable LRNG_SCHED_PERF \
        --disable LRNG_ACVT_HASH \
        --disable LRNG_RUNTIME_MAX_WO_RESEED_CONFIG \
        --disable LRNG_TEST_CPU_ES_COMPRESSION \
        --enable LRNG_SELFTEST \
        --disable LRNG_SELFTEST_PANIC
fi

### Enable zram/zswap ZSTD compression
if [ -n "$_zstd_compression" ]; then
    echo "Enabling zram/swap ZSTD compression..."
    scripts/config --disable CONFIG_ZRAM_DEF_COMP_LZORLE \
        --enable CONFIG_ZRAM_DEF_COMP_ZSTD \
        --set-str CONFIG_ZRAM_DEF_COMP zstd \
        --disable CONFIG_ZSWAP_COMPRESSOR_DEFAULT_LZ4 \
        --enable CONFIG_ZSWAP_COMPRESSOR_DEFAULT_ZSTD \
        --set-str CONFIG_ZSWAP_COMPRESSOR_DEFAULT zstd \
        --enable CONFIG_ZRAM_ENTROPY \
        --set-val CONFIG_ZRAM_ENTROPY_THRESHOLD 100000
fi

### Selecting the ZSTD modules and kernel compression level
if [ "$_zstd_level_value" = "ultra" ]; then
    echo "Enabling highest ZSTD modules and kernel compression ratio..."
    scripts/config --set-val CONFIG_MODULE_COMPRESS_ZSTD_LEVEL 19 \
        --enable CONFIG_MODULE_COMPRESS_ZSTD_ULTRA \
        --set-val CONFIG_MODULE_COMPRESS_ZSTD_LEVEL_ULTRA 22 \
        --set-val CONFIG_ZSTD_COMP_VAL 22
elif [ "$_zstd_level_value" = "normal" ]; then
    echo "Enabling standard ZSTD modules and kernel compression ratio..."
    scripts/config --set-val CONFIG_MODULE_COMPRESS_ZSTD_LEVEL 9 \
        --disable CONFIG_MODULE_COMPRESS_ZSTD_ULTRA \
        --set-val CONFIG_ZSTD_COMP_VAL 19
else
    if [ -n "$_zstd_level_value" ]; then
        error "The value $_zstd_level_value is invalid. Choose the correct one again."
    else
        error "The value is empty. Choose the correct one again."
    fi
    error "Selecting the ZSTD modules and kernel compression level failed!"
    exit
fi

### Disable DEBUG
if [ -n "$_disable_debug" ]; then
    scripts/config --disable DEBUG_INFO \
        --disable DEBUG_INFO_BTF \
        --disable DEBUG_INFO_DWARF4 \
        --disable DEBUG_INFO_DWARF5 \
        --disable PAHOLE_HAS_SPLIT_BTF \
        --disable DEBUG_INFO_BTF_MODULES \
        --disable SLUB_DEBUG \
        --disable PM_DEBUG \
        --disable PM_ADVANCED_DEBUG \
        --disable PM_SLEEP_DEBUG \
        --disable ACPI_DEBUG \
        --disable SCHED_DEBUG \
        --disable LATENCYTOP \
        --disable DEBUG_PREEMPT
fi

echo "Enable USER_NS_UNPRIVILEGED"
scripts/config --enable USER_NS
echo "Enable WINE FASTSYNC"
scripts/config --enable WINESYNC

### 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 IKPROC!"
        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 ${BUILD_FLAGS[*]} LSMOD=$HOME/.config/modprobed.db localmodconfig
    else
        echo "No modprobed.db data found"
        exit
    fi
fi

### Rewrite configuration
echo "Rewrite configuration..."
make ${BUILD_FLAGS[*]} prepare
yes "" | make ${BUILD_FLAGS[*]} config >/dev/null
diff -u ../config .config || :

### Prepared version
make ${BUILD_FLAGS[*]} -s kernelrelease > version
echo "Prepared $pkgbase version $(<version)"

### Running make nconfig
[[ -z "$_makenconfig" ]] ||  make ${BUILD_FLAGS[*]} nconfig

### Running make menuconfig
[[ -z "$_makemenuconfig" ]] ||  make ${BUILD_FLAGS[*]} menuconfig

### Running make xconfig
[[ -z "$_makexconfig" ]] ||  make ${BUILD_FLAGS[*]} xconfig

### Running make gconfig
[[ -z "$_makegconfig" ]] ||  make ${BUILD_FLAGS[*]} gconfig

### Save configuration for later reuse
echo "Save configuration for later reuse..."
cat .config > "${startdir}/config-${pkgver}-${pkgrel}${pkgbase#linux}"

}

build() { cd ${srcdir}/${_srcname} make ${BUILD_FLAGS[*]} -j$(nproc) all

if [ -n "$_build_zfs" ]; then
    cd ${srcdir}/"zfs"

    if [ -n "$_use_llvm_lto" ]; then
        ./autogen.sh
        sed -i "s|\$(uname -r)|${pkgver}-${pkgsuffix}|g" configure
        ./configure KERNEL_LLVM=1 --prefix=/usr --sysconfdir=/etc --sbindir=/usr/bin --libdir=/usr/lib \
            --datadir=/usr/share --includedir=/usr/include --with-udevdir=/lib/udev \
            --libexecdir=/usr/lib/zfs --with-config=kernel \
            --with-linux=${srcdir}/$_srcname
    else
        ./autogen.sh
        sed -i "s|\$(uname -r)|${pkgver}-${pkgsuffix}|g" configure
        ./configure --prefix=/usr --sysconfdir=/etc --sbindir=/usr/bin --libdir=/usr/lib \
            --datadir=/usr/share --includedir=/usr/include --with-udevdir=/lib/udev \
            --libexecdir=/usr/lib/zfs --with-config=kernel \
            --with-linux=${srcdir}/$_srcname
    fi
    make ${BUILD_FLAGS[*]}
fi

}

_package() { pkgdesc="The $pkgdesc kernel and 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' 'uksmd: Userspace KSM helper daemon') provides=(VIRTUALBOX-GUEST-MODULES WIREGUARD-MODULE KSMBD-MODULE UKSMD-BUILTIN)

cd ${srcdir}/$_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" INSTALL_MOD_STRIP=1 \
    DEPMOD=/doesnt/exist  modules_install  # Suppress depmod

# remove build and source links
rm "$modulesdir"/{source,build}

}

_package-headers() { pkgdesc="Headers and scripts for building modules for the $pkgdesc kernel" depends=('pahole' linux-${pkgsuffix} )

cd ${srcdir}/${_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

# 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 "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 "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 "Stripping vmlinux..."
strip -v $STRIP_STATIC "$builddir/vmlinux"

echo "Adding symlink..."
mkdir -p "$pkgdir/usr/src"
ln -sr "$builddir" "$pkgdir/usr/src/$pkgbase"

}

_package-zfs(){ pkgdesc="zfs module for the $pkgdesc kernel" depends=('pahole' linux-$pkgsuffix=$_kernver)

cd ${srcdir}/"zfs"
install -dm755 "$pkgdir/usr/lib/modules/${_kernver}-${pkgsuffix}"
install -m644 module/*/*.ko "$pkgdir/usr/lib/modules/${_kernver}-${pkgsuffix}"
find "$pkgdir" -name '*.ko' -exec zstd --rm -10 {} +
#  sed -i -e "s/EXTRAMODULES='.*'/EXTRAMODULES='${pkgver}-${pkgbase}'/" "$startdir/zfs.install"

}

pkgname=("$pkgbase" "$pkgbase-headers") if [ -n "$build_zfs" ]; then pkgname+=("$pkgbase-zfs") fi for _p in "${pkgname[@]}"; do eval "package$_p() { $(declare -f "_package${_p#$pkgbase}") _package${_p#$pkgbase} }" done

sha256sums=('f4e27b926ea2c66b808db1f5706254cf92a8899e2108eedb0c3a7d12499aea55' '6b0338cb4adcc48b0c9db4b2e9d861562fd1e096144c65fc35b93c788ed97eb3' 'ce8bf7807b45a27eed05a5e1de5a0bf6293a3bbc2085bacae70cd1368f368d1f' '1d42d128d1a3d414e6fd2b8cf5b5f8867061f749644e8e5600526ac47a770fad' '69fd6412f4412ff8e1585f33cb568ad56c0184e3d28bf3f1ca72f56f305a62d2')

and this is enf of compilation log:

ZSTD /var/tmp/pamac-build-miq/linux-cachyos-tt/pkg/linux-cachyos-tt-lto/usr/lib/modules/5.19.1-1-cachyos-tt-lto/kernel/sound/soundcore.ko.zst ZSTD /var/tmp/pamac-build-miq/linux-cachyos-tt/pkg/linux-cachyos-tt-lto/usr/lib/modules/5.19.1-1-cachyos-tt-lto/kernel/virt/lib/irqbypass.ko.zst DEPMOD /var/tmp/pamac-build-miq/linux-cachyos-tt/pkg/linux-cachyos-tt-lto/usr/lib/modules/5.19.1-1-cachyos-tt-lto Warning: 'make modules_install' requires /doesnt/exist. Please install it. This is probably in the kmod package. ==> Tidying install... -> Removing libtool files... -> Purging unwanted files... -> Removing static library files... -> Compressing man and info pages... ==> Checking for packaging issues... ==> Creating package "linux-cachyos-tt-lto"... -> Generating .PKGINFO file... -> Generating .BUILDINFO file... -> Generating .MTREE file... -> Compressing package... ==> Starting package_linux-cachyos-tt-lto-headers()... Installing build files... Installing headers... Installing KConfig files... Removing unneeded architectures... Removing alpha Removing arc Removing arm Removing arm64 Removing csky Removing hexagon Removing ia64 Removing loongarch Removing m68k Removing microblaze Removing mips Removing nios2 Removing openrisc Removing parisc Removing powerpc Removing riscv Removing s390 Removing sh Removing sparc Removing um Removing xtensa Removing documentation... Removing broken symlinks... Removing scripts/dtc/include-prefixes/arc Removing scripts/dtc/include-prefixes/arm Removing scripts/dtc/include-prefixes/arm64 Removing scripts/dtc/include-prefixes/microblaze Removing scripts/dtc/include-prefixes/mips Removing scripts/dtc/include-prefixes/nios2 Removing scripts/dtc/include-prefixes/openrisc Removing scripts/dtc/include-prefixes/powerpc Removing scripts/dtc/include-prefixes/sh Removing scripts/dtc/include-prefixes/xtensa Removing loose objects... Removing scripts/kconfig/conf.o Removing scripts/kconfig/confdata.o Removing scripts/kconfig/expr.o Removing scripts/kconfig/lexer.lex.o Removing scripts/kconfig/menu.o Removing scripts/kconfig/parser.tab.o Removing scripts/kconfig/preprocess.o Removing scripts/kconfig/symbol.o Removing scripts/kconfig/util.o Removing scripts/mod/empty.o Removing scripts/mod/modpost.o Removing scripts/mod/file2alias.o Removing scripts/mod/sumversion.o Stripping build tools... Stripping vmlinux... copy from /var/tmp/pamac-build-miq/linux-cachyos-tt/pkg/linux-cachyos-tt-lto-headers/usr/lib/modules/5.19.1-1-cachyos-tt-lto/build/vmlinux' [elf64-x86-64] to/var/tmp/pamac-build-miq/linux-cachyos-tt/pkg/linux-cachyos-tt-lto-headers/usr/lib/modules/5.19.1-1-cachyos-tt-lto/build/st88hUxU' [elf64-x86-64] Adding symlink... ==> Tidying install... -> Removing libtool files... -> Purging unwanted files... -> Removing static library files... -> Compressing man and info pages... ==> Checking for packaging issues... ==> WARNING: Package contains reference to $srcdir usr/lib/modules/5.19.1-1-cachyos-tt-lto/build/tools/objtool/objtool ==> Creating package "linux-cachyos-tt-lto-headers"... -> Generating .PKGINFO file... -> Generating .BUILDINFO file... -> Generating .MTREE file... -> Compressing package... ==> Leaving fakeroot environment. ==> Finished making: linux-cachyos-tt-lto 5.19.1-1 (Fri Aug 12 11:50:08 2022) ==> Cleaning up...