From 02146a53445889d31c75151c60066cbef36891cb Mon Sep 17 00:00:00 2001
From: seth <getchoo@tuta.io>
Date: Tue, 2 Jul 2024 04:14:28 -0400
Subject: feat: add build shell

this will allow compiling the firmware using the previously packaged
toolchain in an FHS environment
---
 firmware-build-shell.nix | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 firmware-build-shell.nix

(limited to 'firmware-build-shell.nix')

diff --git a/firmware-build-shell.nix b/firmware-build-shell.nix
new file mode 100644
index 0000000..83f875e
--- /dev/null
+++ b/firmware-build-shell.nix
@@ -0,0 +1,30 @@
+{
+  buildFHSEnv,
+  toolchain,
+  toolchainDir ? "opt/toolchains/crosstools-arm-gcc-4.6-linux-3.4-uclibc-0.9.32-binutils-2.21-NPTL",
+}:
+(buildFHSEnv {
+  name = "firmware-build-env";
+
+  targetPkgs =
+    pkgs:
+    [
+      pkgs.gcc
+
+      # undocumented deps
+      pkgs.libuuid
+      pkgs.lzo
+    ]
+    ++ pkgs.linux.nativeBuildInputs;
+
+  extraOutputsToInstall = [ "dev" ];
+
+  extraBuildCommands = ''
+    mkdir -p ${toolchainDir}
+    ln -s ${toolchain} ${toolchainDir}/usr
+  '';
+
+  profile = ''
+    export PATH=/${toolchainDir}/usr/bin:"$PATH"
+  '';
+}).env
-- 
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