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

@Gonzo2028 what configuration/variables are you using?

Does not build for me.

LD [M] drivers/gpu/drm/nouveau/nouveau.o AR drivers/gpu/built-in.a make: *** [Makefile:1868: drivers] Fehler 2 ==> FEHLER: Ein Fehler geschah in build(). Breche ab... :: Unable to build linux-xanmod - makepkg exited with code: 4 =>> Try again? [y/N]:

@figue Ah, sorry, I started to use this kernel very recenty and I didn't realize this distinction. Great kernel BTW, thanks for maintaining the packages.

@pmarcelll current STABLE is still 5.13.15-xanmod1

You can install linux-xanmod-edge for the 5.14.x version

@GDsouza 5.14.0-xanmod1 is EDGE only for now:

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

@carlmarqs I don't have any system with btrfs to test, but probably some config is missing...

Possibly this could help?

https://wiki.archlinux.org/title/Btrfs#Mounting_subvolume_as_root

Cannot boot to btrfs root: ERROR: device 'UUID=XXX' not found. Skipping fsck.

OS working on linux-zen, so fstab is correct. Using _localmodcfg: btrfs, ext4 and vfat are present in .config. "lsblk -l" output:

sda
├─sda1 vfat FAT32 /efi ├─sda2
├─sda3 ntfs System ├─sda4 btrfs / ├─sda5 swap 1 [SWAP] ├─sda6 ntfs
└─sda7
sdb
├─sdb1
├─sdb2 ntfs Data
├─sdb3 btrfs /home └─sdb4 swap 1 [SWAP]

@Alesander the latter.

Does this PKGBUILD include the third-party patchsets? Like the NTFS3 driver, Graysky's CPU optimizations, etc... Or are they already bundled into the Xanmod patch?