Arch Linux User Repository

This package have several variables to enable/disable features.

##
## The following variables can be customized at build time. Use env or export to change at your wish
##
##   Example: env _microarchitecture=98 use_numa=n use_tracers=n makepkg -sc
##
## Look inside 'choose-gcc-optimization.sh' to choose your microarchitecture
## Valid numbers between: 0 to 99
## Default is: 0 => generic
## Good option if your package is for one machine: 98 (Intel native) or 99 (AMD native)
if [ -z ${_microarchitecture+x} ]; then
  _microarchitecture=0
fi

## Disable NUMA since most users do not have multiple processors. Breaks CUDA/NvEnc.
## Archlinux and Xanmod enable it by default.
## Set variable "use_numa" to: n to disable (possibly increase performance)
##                             y to enable  (stock default)
if [ -z ${use_numa+x} ]; then
  use_numa=y
fi

## Since upstream disabled CONFIG_STACK_TRACER (limits debugging and analyzing of the kernel)
## you can enable them setting this option. Caution, because they have an impact in performance.
## Stock Archlinux has this enabled. 
## Set variable "use_tracers" to: n to disable (possibly increase performance, XanMod default)
##                                y to enable  (Archlinux default)
if [ -z ${use_tracers+x} ]; then
  use_tracers=n
fi

# Unique compiler supported upstream is GCC
## Choose between GCC and CLANG config (default is GCC)
## Use the environment variable "_compiler=clang"
if [ "${_compiler}" = "clang" ]; then
  _compiler_flags="CC=clang HOSTCC=clang LLVM=1 LLVM_IAS=1"
fi

# Choose between the 4 main configs for stable branch. Default x86-64-v1 which use CONFIG_GENERIC_CPU2:
# Possible values: config_x86-64-v1 (default) / config_x86-64-v2 / config_x86-64-v3 / config_x86-64-v4
# This will be overwritten by selecting any option in microarchitecture script
# Source files: https://github.com/xanmod/linux/tree/5.17/CONFIGS/xanmod/gcc
if [ -z ${_config+x} ]; then
  _config=config_x86-64-v1
fi

# Compress modules with ZSTD (to save disk space)
if [ -z ${_compress_modules+x} ]; then
  _compress_modules=n
fi

# Compile ONLY used 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 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
if [ -z ${_localmodcfg} ]; then
  _localmodcfg=n
fi

# Tweak kernel options prior to a build via nconfig
if [ -z ${_makenconfig} ]; then
  _makenconfig=n
fi

Personally I'm running now xanmod kernel compiled with this:

env _microarchitecture=98 use_tracers=n use_numa=n _localmodcfg=y _compress_modules=y makepkg -sic

Also, you can now create the file myconfig in your local repo to build this package with a custom config or use ${XDG_CONFIG_HOME}/linux-xanmod/myconfig. This file can be a full kernel config or be a script with several entries to add/remove options (you have several examples in PKGBUILD by using scripts/config):

Code involved:

  for _myconfig in "${SRCDEST}/myconfig" "${HOME}/.config/linux-xanmod/myconfig" "${XDG_CONFIG_HOME}/linux-xanmod/myconfig" ; do
    if [ -f "${_myconfig}" ] && [ "$(wc -l <"${_myconfig}")" -gt "0" ]; then
      if grep -q 'scripts/config' "${_myconfig}"; then
        # myconfig is a partial file. Executing as a script
        msg2 "Applying myconfig..."
        bash -x "${_myconfig}"
      else
        # myconfig is a full config file. Replacing default .config
        msg2 "Using user CUSTOM config..."
        cp -f "${_myconfig}" .config
      fi
      echo
      break
    fi
  done

@Grimish try to launch makepkg with -C to clean your sources. Also check you don't have any patch file in srcdir.

Getting already patched kickbacks when I try to build. Anyone else experiencing this? Done a couple hard resets over the past 2 weeks and have only had 1 successful build at the beginning of that.

@j1simon pinned message updated. use_ns is not in PKGBUILD anymore.

For the Task Type scheduler, it's in a separated package:

https://aur.archlinux.org/pkgbase/linux-xanmod-tt

Can someone explain me why the main page (https://xanmod.org/) talks about the Task Type CPU Scheduler if it is not in the patch?

I have several questions about pinned comments and PKGBUILD:

env _microarchitecture=98 use_numa=n use_tracers=n use_ns=y _localmodcfg=y makepkg -sic

I don't see use_ns anywhere.

In PKGBUILD:

# Choose between the 4 main configs for stable branch. Default x86-64-v1 which use CONFIG_GENERIC_CPU2:
# Possible values: config_x86-64-v1 (default) / config_x86-64-v2 / config_x86-64-v3 / config_x86-64-v4
# Source files: https://github.com/xanmod/linux/tree/5.17/CONFIGS/xanmod/gcc

In that link doesn't exist config_x86-64-v4
On the main page (https://xanmod.org/) there is a link to a script (https://dl.xanmod.org/check_x86-64_psabi.sh) that detects the appropriate value for the CPU where it is compiled.

@figue thx for quick fix)

@xpamych @3d0 thanks for report it. Sorry about that. Should be ok now.

Also, you can use again _compiler=clang if you want a clang compilation :)

export _microarchitecture=99 use_numa=n use_tracers=n _compiler=clang && makepkg -sric

curl: (22) The requested URL returned error: 404 ==> ОШИБКА: Ошибка при загрузке 'https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-6.0.tar.xz' Прерывание...

fixed in PKGBUILD

_branch=6.x

after error =)

-> Setting version... cp: не удалось выполнить stat для 'CONFIGS/xanmod/gcc/config_x86-64': Нет такого файла или каталога ==> ОШИБКА: Произошел сбой в prepare(). Прерывание...    /tmp/linux

Bad Url to get the kernel. It says https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-6.0.tar.xz. It should say https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.0.tar.xz

Edit: thanks for the fixes, now it's working

@sk21 depends on what you change. If it's already done by a PKGBUILD variable, you can launch your paru with your custom variables (add to your .bashrc or directly from terminal).