Expose prev-overlay nixpkgs to genodePackages

overlay/default.nix

@@ -100,10 +100,7 @@ in nullPkgs // {
 
   genodePackages =
     # The Genode-only packages.
-    import ../packages {
-      inherit flake;
-      pkgs = final;
-    };
+    import ../packages { inherit final prev; };
 
   grub2 =
     # No need for a Genode build of GRUB.

packages/default.nix

@@ -1,16 +1,17 @@
-{ flake, pkgs }:
+{ final, prev }:
 
 let
-  upstream = import ./genodelabs { inherit flake pkgs; };
+  upstream = import ./genodelabs { inherit final prev; };
   inherit (upstream) genodeSources;
 
-  inherit (pkgs) buildPackages callPackage fetchFromGitHub;
+  inherit (final) callPackage;
+  inherit (prev) buildPackages;
 
   dhallPackages =
-    flake.inputs.nixpkgs.legacyPackages.x86_64-linux.callPackage ./dhall { };
+    buildPackages.callPackage ./dhall { };
 
   buildDepotWorld = let
-    genodeWorld = fetchFromGitHub {
+    genodeWorld = prev.fetchFromGitHub {
       owner = "genodelabs";
       repo = "genode-world";
       rev = "0ed545e55a90c39df23a86eb733961de71d56241";
@@ -51,7 +52,7 @@ in upstream // {
     portInputs = with genodeSources.ports; [ libc libssh openssl zlib ];
   };
 
-  worldSources = buildPackages.fetchFromGitHub {
+  worldSources = prev.fetchFromGitHub {
     owner = "genodelabs";
     repo = "genode-world";
     rev = "521f9fb5a66b18441f53a96e3993a84b772f27e5";

packages/genodelabs/default.nix

@@ -1,9 +1,10 @@
-{ flake, pkgs }:
+{ final, prev }:
 
 let
-  inherit (pkgs) lib buildPackages;
+  inherit (final) lib;
+  inherit (prev.buildPackages) buildPackages;
 
-  platform = pkgs.targetPlatform;
+  platform = final.targetPlatform;
 
   arch = with platform;
     if isx86_64 then
@@ -16,7 +17,7 @@ let
   upstreamSources =
     # This is where the Genode source tree is defined.
     # Must be updated with ./patches/sources.patch.
-    pkgs.fetchFromGitHub {
+    buildPackages.fetchFromGitHub {
       owner = "genodelabs";
       repo = "genode";
       rev = "sculpt-21.03";
@@ -137,9 +138,8 @@ let
     # The "ports" mechanism is hardly deterministic, so prepare with
     # a pinned nixpkgs revision for a pinned platform for consistency.
     lib.mapAttrs preparePort (import ./ports.nix {
-      pkgs = flake.inputs.nixpkgs.legacyPackages.x86_64-linux // {
-        inherit (pkgs) genodePackages;
-      };
+      pkgs = buildPackages;
+      inherit (final.genodePackages) worldSources;
     });
 
   toolchain =
@@ -149,7 +149,7 @@ let
   stdenv' =
     # Special stdenv for use within the upstream sources.
     # TODO: build with Clang.
-    pkgs.stdenvAdapters.overrideCC pkgs.stdenv toolchain;
+    final.stdenvAdapters.overrideCC final.stdenv toolchain;
 
   buildUpstream =
     # Build from the Genode sources using the least recursive make.
@@ -297,8 +297,8 @@ let
     # Build everything in ./make-targets.nix.
     let
       overrides = import ./make-targets.nix {
-        inherit (pkgs) buildPackages genodePackages;
-        inherit ports;
+        inherit (final) genodePackages;
+        inherit buildPackages ports;
       };
     in lib.attrsets.mapAttrs
     (name: value: (buildUpstream ({ inherit name; } // value))) overrides;
@@ -307,9 +307,8 @@ let
     # Build everything in ./depot-targets.nix.
     (name: value: (buildDepot ({ inherit name; } // value)))
     (import ./depot-targets.nix {
-      inherit (pkgs) genodePackages;
-      inherit ports;
-      buildPackages = buildPackages.buildPackages;
+      inherit (final) genodePackages;
+      inherit buildPackages ports;
     });
 
   specs = with platform;

packages/genodelabs/ports.nix

@@ -1,7 +1,7 @@
 # This file specifies the output hashes of "Ports".
 # Ports not listed here can still be prepared, but will result in a hash mismatch.
 
-{ pkgs }:
+{ pkgs, worldSources }:
 with pkgs;
 
 {
@@ -66,7 +66,7 @@ with pkgs;
   };
   x86emu.hash = "sha256-QY6OL+cDVjQ67JItP1rS4ufPRGZf43AZtWxwza/0q0w=";
   xkcp = {
-    extraRepos = [ genodePackages.worldSources ];
+    extraRepos = [ worldSources ];
     hash = "sha256-oB7oFikCFnEtB/ZlV7Gayw3wNa0BU/vi7O5gfzeFGLg=";
     nativeBuildInputs = [ libxslt ];
     version = "cafc03";