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mirror of https://github.com/NixOS/mobile-nixos.git synced 2024-12-18 13:31:36 +03:00
mobile-nixos/devices/xiaomi-begonia/kernel/default.nix
2020-06-27 21:42:53 -04:00

103 lines
2.3 KiB
Nix

{
mobile-nixos
, runCommand
, fetchFromGitHub
, kernelPatches ? [] # FIXME
, buildPackages
}:
#
# Some notes:
#
# * https://github.com/MiCode/Xiaomi_Kernel_OpenSource/wiki/How-to-compile-kernel-standalone
#
# Things to note:
#
# This currently builds **only** with cross-compilation. That is going to stay
# true until dtc_overlay's source is made available by OEMs.
#
# Either gcc49 or clang is needed for this kernel to build.
#
let
# The "main" CFW kernel repository
src = fetchFromGitHub {
owner = "AgentFabulous";
repo = "begonia";
rev = "186e9186f6fca7ca5aec11a0d967f5c525d56539";
sha256 = "1p08392pcavfjy5i0zc61dxibr0jq9kb3na1hdx85q0z3d9sfwp6";
};
inherit (buildPackages) dtc;
# This may seem weird, but doing this inside the kernel build breaks the binary.
# Note that `buildPackages.stdenv` is necessary since this is a tool for the host.
dtc_overlay = buildPackages.stdenv.mkDerivation {
name = "dtc_overlay-xiaomi-begonia";
nativeBuildInputs = with buildPackages; [
autoPatchelfHook
binutils
];
inherit src;
buildPhase = ''
cp scripts/dtc/dtc_overlay ./
autoPatchelf dtc_overlay
./dtc_overlay --version
'';
installPhase = ''
mv dtc_overlay $out
'';
};
in
(mobile-nixos.kernel-builder-clang_9 {
version = "4.14.184";
configfile = ./config.aarch64;
file = "Image.gz-dtb";
hasDTB = true;
inherit src;
patches = [
./0001-mtkfb-Default-to-RGB-order.patch
./0001-fix-teei-mediatek.patch
./0001-center-logo.patch
./0001-mt6360-white-led-defaults-to-on.patch
./0003-arch-arm64-Add-config-option-to-fix-bootloader-cmdli.patch
];
makeFlags = [
"DTC_EXT=${dtc}/bin/dtc"
];
isModular = false;
}).overrideAttrs({ postInstall ? "", postPatch ? [], ... }: {
installTargets = [
# uh, things seem screwey with that vendor kernel tree, and dependencies
# are not resolved as expected, so let's ask for the compressed kernel
# explictly first :/.
"Image.gz"
"zinstall"
"Image.gz-dtb"
"install"
];
postInstall = postInstall + ''
cp -v "$buildRoot/arch/arm64/boot/Image.gz-dtb" "$out/"
'';
postPatch = postPatch + ''
echo ":: Replacing dtc_overaly"
(PS4=" $ "; set -x
rm scripts/dtc/dtc_overlay
cp ${dtc_overlay} scripts/dtc/dtc_overlay
)
'';
})