ionpak-thermostat/default.nix

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{ # Use master branch of the overlay by default
mozillaOverlay ? import (builtins.fetchTarball https://github.com/mozilla/nixpkgs-mozilla/archive/master.tar.gz),
rustManifest ? ./channel-rust-nightly.toml,
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}:
let
pkgs = import <nixpkgs> { overlays = [ mozillaOverlay ]; };
in
with pkgs;
let
rustcSrc = pkgs.fetchgit {
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url = https://github.com/rust-lang/rust.git;
# master of 2019-09-25
rev = "37538aa1365d1f8a10770a7d15c95b3167c8db57";
sha256 = "1nvddkxwvrsvyx187s5mwj4fwsf26xd4vr6ba1kfy7m2fj7w79hq";
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fetchSubmodules = true;
};
target = "thumbv7em-none-eabihf";
targets = [ target ];
rustChannelOfTargets = _channel: _date: targets:
(pkgs.lib.rustLib.fromManifestFile rustManifest {
inherit (pkgs) stdenv fetchurl patchelf;
}).rust.override { inherit targets; };
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rust =
rustChannelOfTargets "nightly" null targets;
rustPlatform = recurseIntoAttrs (makeRustPlatform {
rustc = rust // { src = rustcSrc; };
cargo = rust;
});
gcc = pkgsCross.armv7l-hf-multiplatform.buildPackages.gcc;
xbuildRustPackage = attrs:
let
buildPkg = rustPlatform.buildRustPackage attrs;
in
buildPkg.overrideAttrs ({ name, nativeBuildInputs, ... }: {
nativeBuildInputs =
nativeBuildInputs ++ [ cargo-xbuild ];
buildPhase = ''
cargo xbuild --release --frozen
'';
XARGO_RUST_SRC = "${rustcSrc}/src";
installPhase = ''
mkdir $out
cp target/${target}/release/${name} $out/${name}.elf
'';
});
firmware = xbuildRustPackage {
name = "firmware";
src = ./firmware;
cargoSha256 = "13nk3m9s7fy4anl89x5q88b7iar9y48ricj3k5ap741g2cll02dv";
nativeBuildInputs = [
gcc
];
"CC_${target}" = "${gcc}/bin/armv7l-unknown-linux-gnueabihf-gcc";
RUST_COMPILER_RT_ROOT = "${rustcSrc}/src/llvm-project/compiler-rt";
doCheck = false;
};
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in {
inherit pkgs rustPlatform rustcSrc gcc firmware;
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}