init

1 files changed, 178 insertions, 0 deletions

diff --git a/nix/esp-rs.nix b/nix/esp-rs.nix
new file mode 100644
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--- /dev/null
+++ b/nix/esp-rs.nix
@@ -0,0 +1,178 @@
+# MIT licensed
+# code taken from https://git.sr.ht/~olk/esp-rs-nix/blob/main/esp-rs.nix
+{
+  pkgs ? import <nixpkgs> {},
+  lib ? pkgs.lib,
+}: let
+  versions = {
+    esp-rust = {
+      version = "1.93.0.0";
+      hash = "sha256-837shgsDonrmUqZsIhUoR+93IR8tUat67PiHfShilJc=";
+    };
+    rust-src = {
+      version = "1.93.0.0";
+      hash = "sha256-upKiKRDvubE8obME4OVewTr6PjS/p0QOqjpQfEWBfE0=";
+    };
+    gcc = {
+      version = "14.2.0_20241119";
+      xtensa-hash = "sha256-pX2KCnUoGZtgqFmZEuNRJxDMQgqYYPRpswL3f3T0nWE=";
+      riscv32-hash = "sha256-67O34FYUnVG2nfkfQj2yH874qDSYx4F/16xxPi0kNbY=";
+    };
+    defaultArch = "x86_64-unknown-linux-gnu";
+    gccArch = "x86_64-linux-gnu";
+  };
+
+  mkGccToolchain = {
+    name,
+    arch,
+    hash,
+  }:
+    pkgs.stdenv.mkDerivation {
+      pname = "esp-${name}-gcc";
+      version = versions.gcc.version;
+
+      src = pkgs.fetchzip {
+        url = "https://github.com/espressif/crosstool-NG/releases/download/esp-${versions.gcc.version}/${arch}-esp-elf-${versions.gcc.version}-${versions.gccArch}.tar.xz";
+        inherit hash;
+      };
+
+      installPhase = ''
+        runHook preInstall
+        mkdir -p $out
+        cp -r ./* $out/
+        runHook postInstall
+      '';
+
+      meta = with lib; {
+        description = "ESP32 ${name} GCC toolchain";
+        homepage = "https://github.com/espressif/crosstool-NG";
+        license = licenses.gpl2Plus;
+        platforms = ["x86_64-linux"];
+      };
+    };
+
+  esp-rust-build = pkgs.stdenv.mkDerivation {
+    pname = "esp-rust-build";
+    version = versions.esp-rust.version;
+
+    src = pkgs.fetchzip {
+      url = "https://github.com/esp-rs/rust-build/releases/download/v${versions.esp-rust.version}/rust-${versions.esp-rust.version}-${versions.defaultArch}.tar.xz";
+      hash = versions.esp-rust.hash;
+    };
+
+    nativeBuildInputs = with pkgs; [autoPatchelfHook];
+    buildInputs = with pkgs; [
+      stdenv.cc.cc
+      zlib
+    ];
+
+    patchPhase = ''
+      patchShebangs ./install.sh
+    '';
+
+    installPhase = ''
+      runHook preInstall
+      mkdir -p $out
+      ./install.sh --destdir=$out --prefix="" --disable-ldconfig --without=rust-docs-json-preview,rust-docs
+      runHook postInstall
+    '';
+
+    meta = with lib; {
+      description = "ESP32 Rust toolchain";
+      homepage = "https://github.com/esp-rs/rust-build";
+      license = with licenses; [
+        mit
+        asl20
+      ];
+      platforms = ["x86_64-linux"];
+    };
+  };
+
+  esp-xtensa-gcc = mkGccToolchain {
+    name = "xtensa";
+    arch = "xtensa";
+    hash = versions.gcc.xtensa-hash;
+  };
+
+  esp-riscv32-gcc = mkGccToolchain {
+    name = "riscv32";
+    arch = "riscv32";
+    hash = versions.gcc.riscv32-hash;
+  };
+
+  rust-src = pkgs.fetchzip {
+    url = "https://github.com/esp-rs/rust-build/releases/download/v${versions.rust-src.version}/rust-src-${versions.rust-src.version}.tar.xz";
+    hash = versions.rust-src.hash;
+  };
+
+  esp-rs-base = pkgs.symlinkJoin {
+    name = "esp-rs-base-${versions.esp-rust.version}";
+    paths = [
+      esp-rust-build
+      esp-xtensa-gcc
+      esp-riscv32-gcc
+    ];
+    meta = {
+      description = "Base ESP32 toolchain components";
+      platforms = ["x86_64-linux"];
+    };
+  };
+in
+  pkgs.stdenv.mkDerivation {
+    pname = "esp-rs";
+    version = versions.esp-rust.version;
+
+    src = rust-src;
+
+    nativeBuildInputs = with pkgs; [
+      autoPatchelfHook
+      pkg-config
+    ];
+
+    buildInputs = with pkgs; [
+      stdenv.cc.cc
+      zlib
+    ];
+
+    autoPatchelfIgnoreMissingDeps = ["*"];
+
+    patchPhase = ''
+      patchShebangs ./install.sh
+    '';
+
+    installPhase = ''
+      runHook preInstall
+
+      # Start with the base toolchain
+      mkdir -p $out
+      cp -rL ${esp-rs-base}/* $out/
+      chmod -R u+w $out
+
+      # Install rust-src on top
+      ./install.sh --destdir=$out --prefix="" --disable-ldconfig
+
+      runHook postInstall
+    '';
+
+    passthru = {
+      inherit esp-rust-build esp-xtensa-gcc esp-riscv32-gcc;
+      version = versions.esp-rust.version;
+    };
+
+    meta = with lib; {
+      description = "Complete ESP32 Rust development toolchain";
+      longDescription = ''
+        A complete toolchain for developing Rust applications on ESP32 microcontrollers.
+        Includes Rust compiler with ESP32 targets, Xtensa and RISC-V GCC toolchains,
+        and all necessary components for no_std ESP-HAL development.
+      '';
+      homepage = "https://github.com/esp-rs";
+      license = with licenses; [
+        mit
+        asl20
+        gpl2Plus
+      ];
+      platforms = ["x86_64-linux"];
+      maintainers = [];
+    };
+  }