feat: make build :o

2025-12-22 00:09:17 -08:00 · 2025-07-24 19:42:45 -07:00 · 2025-07-24 19:42:45 -07:00 · 3c055d49e9
commit 3c055d49e9
13 changed files with 521 additions and 0 deletions
--- a/flake.nix
+++ b/flake.nix
@ -0,0 +1,64 @@
+{
+  description = "gba";
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    crane.url = "github:ipetkov/crane";
+    flake-utils.url = "github:numtide/flake-utils";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs =
+    {
+    nixpkgs,
+    flake-utils,
+    rust-overlay,
+    crane,
+    ...
+    }:
+    let
+      inherit (nixpkgs) lib;
+      rustTriple = "thumbv4t-none-eabi";
+      nixTriple = "arm-none-eabi";
+    in flake-utils.lib.eachDefaultSystem (system: let
+        pkgs = import nixpkgs {
+          inherit system;
+          overlays = [ (import rust-overlay) ];
+        };
+        pkgsCross = import nixpkgs {
+          inherit system;
+          config = {
+            allowUnsupportedSystem = true;
+            #replaceStdenv = ({ pkgs }: pkgs.clangStdenvNoLibs );
+          };
+          crossSystem = {
+            config = nixTriple;
+            libc = "newlib";
+            #rust.rustcTarget = rustTriple;
+            gcc = {
+              arch = "armv4t";
+            };
+          };
+        };
+
+        rustToolchainFor =
+          p:
+          p.rust-bin.selectLatestNightlyWith (
+            toolchain:
+            toolchain.minimal.override {
+              extensions = [ "rust-src" ];
+              targets = [ ];
+            }
+          );
+        rustToolchain = rustToolchainFor pkgs;
+
+           craneLib = (crane.mkLib pkgs).overrideToolchain rustToolchainFor;
+
+          myPackage = pkgs.callPackage ./package.nix { inherit craneLib rustToolchain rustTriple; };
+      in {
+        inherit pkgsCross;
+        packages.default = myPackage;
+      });
+}