95 lines
2.5 KiB
Nix
95 lines
2.5 KiB
Nix
{
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description = "Firmware for the NaxGCC";
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inputs = {
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nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-23.11";
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rust-overlay.url = "github:oxalica/rust-overlay";
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flake-utils.url = "github:numtide/flake-utils";
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naersk = {
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url = "github:nmattia/naersk";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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};
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outputs =
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{ self
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, nixpkgs
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, rust-overlay
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, flake-utils
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, naersk
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}: (flake-utils.lib.eachDefaultSystem (system:
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let
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pkgs = import nixpkgs {
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inherit system;
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overlays = [
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rust-overlay.overlays.default
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];
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config.allowUnsupportedSystem = true;
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};
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rustToolchain = pkgs.rust-bin.stable.latest.default.override {
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extensions = [
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"rust-src"
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];
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targets = [
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"thumbv6m-none-eabi"
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];
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};
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naersk_lib = naersk.lib.${system}.override {
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cargo = rustToolchain;
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rustc = rustToolchain;
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};
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CARGO_BUILD_TARGET = "thumbv6m-none-eabi";
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RUSTFLAGS = [
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"-Clinker=flip-link"
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"-Cinline-threshold=5"
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"-Cno-vectorize-loops"
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];
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in
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{
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packages.default = self.packages.${system}.rustgcc-uf2;
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packages.rustgcc-uf2 = pkgs.runCommandLocal "${self.packages.${system}.rustgcc.pname}-uf2-${self.packages.${system}.rustgcc.version}" { } ''
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mkdir -p $out/bin
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${pkgs.elf2uf2-rs}/bin/elf2uf2-rs ${self.packages.${system}.rustgcc}/bin/${self.packages.${system}.rustgcc.pname} $out/bin/${self.packages.${system}.rustgcc.pname}.uf2
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'';
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packages.rustgcc = naersk_lib.buildPackage {
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pname = (builtins.fromTOML (builtins.readFile ./Cargo.toml)).package.name;
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version = (builtins.fromTOML (builtins.readFile ./Cargo.toml)).package.version;
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src = self;
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nativeBuildInputs = [
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pkgs.flip-link
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];
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cargoBuildOptions = _orig: _orig ++ [
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"--target=${CARGO_BUILD_TARGET}"
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];
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# if a tree falls in the forest and no one is around to hear it, does it make a sound?
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DEFMT_LOG = "off";
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inherit RUSTFLAGS;
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};
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devShells.default = pkgs.mkShell {
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nativeBuildInputs = builtins.attrValues {
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inherit rustToolchain;
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inherit (pkgs) gcc-arm-embedded elf2uf2-rs picotool probe-rs cargo-expand flip-link;
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};
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CARGO_TARGET_THUMBV6M_NONE_EABI_RUNNER = "probe-rs run --chip RP2040 --protocol swd";
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DEFMT_LOG = "debug";
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inherit CARGO_BUILD_TARGET RUSTFLAGS;
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};
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}));
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}
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