[nix] support nix run

unlsycn · unlsycn · commit 70f0b3dd453d · 2024-09-09T19:30:13.000+08:00
Signed-off-by: unlsycn &lt;unlsycn@unlsycn.com&gt;
diff --git a/templates/chisel/nix/gcd/gcd.nix b/templates/chisel/nix/gcd/gcd.nix
@@ -70,6 +70,8 @@ let
 
     outputs = [ "out" "elaborator" ];
 
+    meta.mainProgram = "elaborator";
+
     buildPhase = ''
       mill -i '__.assembly'
     '';
diff --git a/templates/chisel/nix/gcd/vcs.nix b/templates/chisel/nix/gcd/vcs.nix
@@ -15,6 +15,8 @@ in stdenv.mkDerivation {
 
   src = rtl;
 
+  meta.mainProgram = binName;
+
   buildPhase = ''
     runHook preBuild
 
diff --git a/templates/chisel/nix/gcd/verilated.nix b/templates/chisel/nix/gcd/verilated.nix
@@ -19,6 +19,8 @@ in stdenv.mkDerivation {
     inherit (rtl) target;
   };
 
+  meta.mainProgram = vName;
+
   buildPhase = ''
     runHook preBuild
 
