45 lines
1.6 KiB
Nix
45 lines
1.6 KiB
Nix
{ lib, buildLinux, fetchurl
|
|
, kernelPatches ? [ ]
|
|
, structuredExtraConfig ? {}
|
|
, extraMeta ? {}
|
|
, argsOverride ? {}
|
|
, ... } @ args:
|
|
|
|
let
|
|
version = "5.15.86-rt56"; # updated by ./update-rt.sh
|
|
branch = lib.versions.majorMinor version;
|
|
kversion = builtins.elemAt (lib.splitString "-" version) 0;
|
|
in buildLinux (args // {
|
|
inherit version;
|
|
|
|
# modDirVersion needs a patch number, change X.Y-rtZ to X.Y.0-rtZ.
|
|
modDirVersion = if (builtins.match "[^.]*[.][^.]*-.*" version) == null then version
|
|
else lib.replaceStrings ["-"] [".0-"] version;
|
|
|
|
src = fetchurl {
|
|
url = "mirror://kernel/linux/kernel/v5.x/linux-${kversion}.tar.xz";
|
|
sha256 = "1vpjnmwqsx6akph2nvbsv2jl7pp8b7xns3vmwbljsl23lkpxkz40";
|
|
};
|
|
|
|
kernelPatches = let rt-patch = {
|
|
name = "rt";
|
|
patch = fetchurl {
|
|
url = "mirror://kernel/linux/kernel/projects/rt/${branch}/older/patch-${version}.patch.xz";
|
|
sha256 = "0y7pkzacxh1fsvnbmjq0ljfb4zjw6dq9br6rl8kr3w4dj56fmaxs";
|
|
};
|
|
}; in [ rt-patch ] ++ kernelPatches;
|
|
|
|
structuredExtraConfig = with lib.kernel; {
|
|
PREEMPT_RT = yes;
|
|
# Fix error: unused option: PREEMPT_RT.
|
|
EXPERT = yes; # PREEMPT_RT depends on it (in kernel/Kconfig.preempt)
|
|
# Fix error: option not set correctly: PREEMPT_VOLUNTARY (wanted 'y', got 'n').
|
|
PREEMPT_VOLUNTARY = lib.mkForce no; # PREEMPT_RT deselects it.
|
|
# Fix error: unused option: RT_GROUP_SCHED.
|
|
RT_GROUP_SCHED = lib.mkForce (option no); # Removed by sched-disable-rt-group-sched-on-rt.patch.
|
|
} // structuredExtraConfig;
|
|
|
|
extraMeta = extraMeta // {
|
|
inherit branch;
|
|
};
|
|
} // argsOverride)
|