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nixos-hardware/milkv/pioneer/linuxboot-initrd.nix
Jörg Thalheim 218ab789fd milkv/pioneer: fix u-root cross-compilation
Signed-off-by: Jörg Thalheim <joerg@thalheim.io>
2024-04-08 06:34:49 +02:00

73 lines
1.9 KiB
Nix

{ buildPackages
, fetchFromGitHub
, fetchpatch
, linux-firmware
, buildGoModule
, ...
}:
# Based on
# https://github.com/sophgo/bootloader-riscv/blob/e0839852d571df106db622611f4786ae17e8df0f/scripts/envsetup.sh#L809-L819
let
u-root = buildPackages.buildGoModule rec {
pname = "u-root";
version = "0.14.0";
src = fetchFromGitHub {
owner = "u-root";
repo = "u-root";
rev = "v${version}";
hash = "sha256-8zA3pHf45MdUcq/MA/mf0KCTxB1viHieU/oigYwIPgo=";
};
vendorHash = null;
patches = [
(fetchpatch {
url = "https://github.com/sophgo/bootloader-riscv/commit/322c3305763872a9b88a1c85d79bca63b8fbe7a6.patch";
hash = "sha256-l5r3DbcMqRYD5FhRBqtEIEscZAdDvjmQJE4BIAtWYWE=";
stripLen = 1;
})
];
postInstall = ''
cp -r . $out/src
'';
# We only build the u-root binary in the build phase and the initrd in the
# postBuild hook.
subPackages = [ "." ];
# Tests time out after 10min for native riscv64 builds on the pioneer.
doCheck = false;
};
in
buildGoModule {
name = "linuxboot-initrd";
src = null;
vendorHash = null;
dontUnpack = true;
nativeBuildInputs = [ u-root ];
buildPhase = ''
runHook preBuild
pushd ${u-root}/src
mkdir -p $out
GOROOT="$(go env GOROOT)" u-root \
-build bb \
-uinitcmd=boot \
-files "${linux-firmware}/lib/firmware/amdgpu/:lib/firmware/amdgpu/" \
-files "${linux-firmware}/lib/firmware/radeon/:lib/firmware/radeon/" \
-o $out/initramfs.cpio \
core boot
popd
# The vendor does not compress the initrd. We do since we include more
# firmware files. CRC32 is required by the kernel's decompressor.
xz --check=crc32 $out/initramfs.cpio
runHook postBuild
'';
installPhase = ''
runHook preInstall
mv $out/initramfs.cpio.xz $out/initrd.img
runHook postInstall
'';
}