systems: support TI MSP430 microcontrollers

lib/systems/examples.nix

@@ -102,6 +102,11 @@ rec {
   riscv64 = riscv "64";
   riscv32 = riscv "32";
 
+  msp430 = {
+    config = "msp430-elf";
+    libc = "newlib";
+  };
+
   avr = {
     config = "avr";
   };

lib/systems/inspect.nix

@@ -20,6 +20,7 @@ rec {
     isRiscV        = { cpu = { family = "riscv"; }; };
     isSparc        = { cpu = { family = "sparc"; }; };
     isWasm         = { cpu = { family = "wasm"; }; };
+    isMsp430       = { cpu = { family = "msp430"; }; };
     isAvr          = { cpu = { family = "avr"; }; };
     isAlpha        = { cpu = { family = "alpha"; }; };
 

lib/systems/parse.nix

@@ -109,6 +109,7 @@ rec {
     
     alpha    = { bits = 64; significantByte = littleEndian; family = "alpha"; };
 
+    msp430   = { bits = 16; significantByte = littleEndian; family = "msp430"; };
     avr      = { bits = 8; family = "avr"; };
   };
 

pkgs/build-support/bintools-wrapper/default.nix

@@ -186,6 +186,7 @@ stdenv.mkDerivation {
         }.${targetPlatform.parsed.cpu.name}
       else if targetPlatform.isPower then if targetPlatform.isBigEndian then "ppc" else "lppc"
       else if targetPlatform.isSparc then "sparc"
+      else if targetPlatform.isMsp430 then "msp430"
       else if targetPlatform.isAvr then "avr"
       else if targetPlatform.isAlpha then "alpha"
       else throw "unknown emulation for platform: " + targetPlatform.config;

pkgs/top-level/release-cross.nix

@@ -140,6 +140,7 @@ in
   android64 = mapTestOnCross lib.systems.examples.aarch64-android-prebuilt (linuxCommon // {
   });
 
+  msp430 = mapTestOnCross lib.systems.examples.msp430 embedded;
   avr = mapTestOnCross lib.systems.examples.avr embedded;
   arm-embedded = mapTestOnCross lib.systems.examples.arm-embedded embedded;
   powerpc-embedded = mapTestOnCross lib.systems.examples.ppc-embedded embedded;