uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

nixos/tests/misc.nix

@@ -0,0 +1,163 @@
+# Miscellaneous small tests that don't warrant their own VM run.
+
+import ./make-test-python.nix ({ pkgs, ...} : let
+  foo = pkgs.writeText "foo" "Hello World";
+in {
+  name = "misc";
+  meta = with pkgs.lib.maintainers; {
+    maintainers = [ eelco ];
+  };
+
+  nodes.machine =
+    { lib, ... }:
+    with lib;
+    { swapDevices = mkOverride 0
+        [ { device = "/root/swapfile"; size = 128; } ];
+      environment.variables.EDITOR = mkOverride 0 "emacs";
+      documentation.nixos.enable = mkOverride 0 true;
+      systemd.tmpfiles.rules = [ "d /tmp 1777 root root 10d" ];
+      virtualisation.fileSystems = { "/tmp2" =
+        { fsType = "tmpfs";
+          options = [ "mode=1777" "noauto" ];
+        };
+        # Tests https://discourse.nixos.org/t/how-to-make-a-derivations-executables-have-the-s-permission/8555
+        "/user-mount/point" = {
+          device = "/user-mount/source";
+          fsType = "none";
+          options = [ "bind" "rw" "user" "noauto" ];
+        };
+        "/user-mount/denied-point" = {
+          device = "/user-mount/denied-source";
+          fsType = "none";
+          options = [ "bind" "rw" "noauto" ];
+        };
+      };
+      systemd.automounts = singleton
+        { wantedBy = [ "multi-user.target" ];
+          where = "/tmp2";
+        };
+      users.users.sybil = { isNormalUser = true; group = "wheel"; };
+      users.users.alice = { isNormalUser = true; };
+      security.sudo = { enable = true; wheelNeedsPassword = false; };
+      boot.kernel.sysctl."vm.swappiness" = 1;
+      boot.kernelParams = [ "vsyscall=emulate" ];
+      system.extraDependencies = [ foo ];
+    };
+
+  testScript =
+    ''
+      import json
+
+
+      def get_path_info(path):
+          result = machine.succeed(f"nix --option experimental-features nix-command path-info --json {path}")
+          parsed = json.loads(result)
+          return parsed
+
+
+      with subtest("nix-db"):
+          info = get_path_info("${foo}")
+          print(info)
+
+          if (
+              info[0]["narHash"]
+              != "sha256-BdMdnb/0eWy3EddjE83rdgzWWpQjfWPAj3zDIFMD3Ck="
+          ):
+              raise Exception("narHash not set")
+
+          if info[0]["narSize"] != 128:
+              raise Exception("narSize not set")
+
+      with subtest("nixos-version"):
+          machine.succeed("[ `nixos-version | wc -w` = 2 ]")
+
+      with subtest("nixos-rebuild"):
+          assert "NixOS module" in machine.succeed("nixos-rebuild --help")
+
+      with subtest("Sanity check for uid/gid assignment"):
+          assert "4" == machine.succeed("id -u messagebus").strip()
+          assert "4" == machine.succeed("id -g messagebus").strip()
+          assert "users:x:100:" == machine.succeed("getent group users").strip()
+
+      with subtest("Regression test for GMP aborts on QEMU."):
+          machine.succeed("expr 1 + 2")
+
+      with subtest("the swap file got created"):
+          machine.wait_for_unit("root-swapfile.swap")
+          machine.succeed("ls -l /root/swapfile | grep 134217728")
+
+      with subtest("whether kernel.poweroff_cmd is set"):
+          machine.succeed('[ -x "$(cat /proc/sys/kernel/poweroff_cmd)" ]')
+
+      with subtest("whether the io cgroupv2 controller is properly enabled"):
+          machine.succeed("grep -q '\\bio\\b' /sys/fs/cgroup/cgroup.controllers")
+
+      with subtest("whether we have a reboot record in wtmp"):
+          machine.shutdown
+          machine.wait_for_unit("multi-user.target")
+          machine.succeed("last | grep reboot >&2")
+
+      with subtest("whether we can override environment variables"):
+          machine.succeed('[ "$EDITOR" = emacs ]')
+
+      with subtest("whether hostname (and by extension nss_myhostname) works"):
+          assert "machine" == machine.succeed("hostname").strip()
+          assert "machine" == machine.succeed("hostname -s").strip()
+
+      with subtest("whether systemd-udevd automatically loads modules for our hardware"):
+          machine.succeed("systemctl start systemd-udev-settle.service")
+          machine.wait_for_unit("systemd-udev-settle.service")
+          assert "mousedev" in machine.succeed("lsmod")
+
+      with subtest("whether systemd-tmpfiles-clean works"):
+          machine.succeed(
+              "touch /tmp/foo", "systemctl start systemd-tmpfiles-clean", "[ -e /tmp/foo ]"
+          )
+          # move into the future
+          machine.succeed(
+              'date -s "@$(($(date +%s) + 1000000))"',
+              "systemctl start systemd-tmpfiles-clean",
+          )
+          machine.fail("[ -e /tmp/foo ]")
+
+      with subtest("whether automounting works"):
+          machine.fail("grep '/tmp2 tmpfs' /proc/mounts")
+          machine.succeed("touch /tmp2/x")
+          machine.succeed("grep '/tmp2 tmpfs' /proc/mounts")
+
+      with subtest(
+          "Whether mounting by a user is possible with the `user` option in fstab (#95444)"
+      ):
+          machine.succeed("mkdir -p /user-mount/source")
+          machine.succeed("touch /user-mount/source/file")
+          machine.succeed("chmod -R a+Xr /user-mount/source")
+          machine.succeed("mkdir /user-mount/point")
+          machine.succeed("chown alice:users /user-mount/point")
+          machine.succeed("su - alice -c 'mount /user-mount/point'")
+          machine.succeed("su - alice -c 'ls /user-mount/point/file'")
+      with subtest(
+          "Whether mounting by a user is denied without the `user` option in  fstab"
+      ):
+          machine.succeed("mkdir -p /user-mount/denied-source")
+          machine.succeed("touch /user-mount/denied-source/file")
+          machine.succeed("chmod -R a+Xr /user-mount/denied-source")
+          machine.succeed("mkdir /user-mount/denied-point")
+          machine.succeed("chown alice:users /user-mount/denied-point")
+          machine.fail("su - alice -c 'mount /user-mount/denied-point'")
+
+      with subtest("shell-vars"):
+          machine.succeed('[ -n "$NIX_PATH" ]')
+
+      with subtest("nix-db"):
+          machine.succeed("nix-store -qR /run/current-system | grep nixos-")
+
+      with subtest("Test sysctl"):
+          machine.wait_for_unit("systemd-sysctl.service")
+          assert "1" == machine.succeed("sysctl -ne vm.swappiness").strip()
+          machine.execute("sysctl vm.swappiness=60")
+          assert "60" == machine.succeed("sysctl -ne vm.swappiness").strip()
+
+      with subtest("Test boot parameters"):
+          assert "vsyscall=emulate" in machine.succeed("cat /proc/cmdline")
+    '';
+})