Initial support for OpenRISC 1000 (or1k)

lib/systems/doubles.nix

@@ -35,6 +35,7 @@ let
     "msp430-none"
     "riscv64-none" "riscv32-none"
     "vc4-none"
+    "or1k-none"
 
     "js-ghcjs"
 
@@ -58,6 +59,7 @@ in {
   mips          = filterDoubles predicates.isMips;
   riscv         = filterDoubles predicates.isRiscV;
   vc4           = filterDoubles predicates.isVc4;
+  or1k          = filterDoubles predicates.isOr1k;
   js            = filterDoubles predicates.isJavaScript;
 
   bigEndian     = filterDoubles predicates.isBigEndian;

lib/systems/examples.nix

@@ -124,6 +124,12 @@ rec {
     platform = {};
   };
 
+  or1k = {
+    config = "or1k-elf";
+    libc = "newlib";
+    platform = {};
+  };
+
   arm-embedded = {
     config = "arm-none-eabi";
     libc = "newlib";

lib/systems/inspect.nix

@@ -24,6 +24,7 @@ rec {
     isVc4          = { cpu = { family = "vc4"; }; };
     isAvr          = { cpu = { family = "avr"; }; };
     isAlpha        = { cpu = { family = "alpha"; }; };
+    isOr1k         = { cpu = { family = "or1k"; }; };
     isJavaScript   = { cpu = cpuTypes.js; };
 
     is32bit        = { cpu = { bits = 32; }; };

lib/systems/parse.nix

@@ -114,6 +114,8 @@ rec {
 
     vc4      = { bits = 32; significantByte = littleEndian; family = "vc4"; };
 
+    or1k     = { bits = 32; significantByte = bigEndian; family = "or1k"; };
+
     js       = { bits = 32; significantByte = littleEndian; family = "js"; };
   };
 

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

@@ -185,6 +185,7 @@ stdenv.mkDerivation {
       else if targetPlatform.isAvr then "avr"
       else if targetPlatform.isAlpha then "alpha"
       else if targetPlatform.isVc4 then "vc4"
+      else if targetPlatform.isOr1k then "or1k"
       else throw "unknown emulation for platform: ${targetPlatform.config}";
     in if targetPlatform.useLLVM or false then ""
        else targetPlatform.platform.bfdEmulation or (fmt + sep + arch);