Add gcc-aarch64-embedded

Author: shomykohai

pkgs/gcc-toolchain/default.nix

@@ -1,10 +1,12 @@
 {pkgs}:
 # import all individual toolchain files
 let
+  gcc_aarch64_embedded = pkgs.callPackage ./gcc-aarch64-embedded {};
   gcc_aarch64_linux = pkgs.callPackage ./gcc-aarch64-linux-gnu {};
   gcc_arm_linux = pkgs.callPackage ./gcc-arm-linux-gnueabihf {};
   gcc_arm_linux_12 = pkgs.callPackage ./gcc-arm-linux-gnueabihf-12 {};
 in {
+  gcc-aarch64-embedded = gcc_aarch64_embedded;
   gcc-aarch64-linux-gnu = gcc_aarch64_linux;
   gcc-arm-linux-gnueabihf = gcc_arm_linux;
   gcc-arm-linux-gnueabihf-12 = gcc_arm_linux_12;

pkgs/gcc-toolchain/gcc-aarch64-embedded/default.nix

@@ -0,0 +1,16 @@
+{callPackage}:
+callPackage ../generic-arm-toolchain.nix {
+  pname = "gcc-aarch64-embedded";
+  targetCompiler = "aarch64-none-elf";
+  version = "15.2.rel1";
+
+  platformsOverride = {
+    aarch64-linux = "aarch64";
+    x86_64-linux = "x86_64";
+  };
+
+  sha256s = {
+    aarch64-linux = "46195685b6aec1077e3f1b7706b43a6aa1fef4d8d3bff3a411b7dad1c5b1196b";
+    x86_64-linux = "66f7ce7c1bf662f589a4caf440812375f3cd8000a033ccf0971127a0726d6921";
+  };
+}