From ad759b7c6dd6e25a58233857aa0c54682ad05c6d Mon Sep 17 00:00:00 2001
From: Daniel Barlow <dan@telent.net>
Date: Tue, 20 Sep 2022 16:09:44 +0100
Subject: [PATCH] allow changing hardware device in tests

---
 devices/qemu.nix   | 11 +++++++++++
 run-tests.sh       |  1 +
 tests/smoke/run.sh |  2 +-
 3 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 devices/qemu.nix

diff --git a/devices/qemu.nix b/devices/qemu.nix
new file mode 100644
index 0000000..51e27d8
--- /dev/null
+++ b/devices/qemu.nix
@@ -0,0 +1,11 @@
+{
+  system = {
+    crossSystem = {
+      config = "mips-unknown-linux-musl";
+      gcc = {
+        abi = "32";
+        arch = "mips32";          # maybe mips_24kc-
+      };
+    };
+  };
+}
diff --git a/run-tests.sh b/run-tests.sh
index 3568b14..48c8395 100755
--- a/run-tests.sh
+++ b/run-tests.sh
@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 
+export DEVICE=${DEVICE-qemu}
 export TMPDIR=${TMPDIR-/tmp}
 
 for i in tests/*/run.sh; do
diff --git a/tests/smoke/run.sh b/tests/smoke/run.sh
index 0316302..42fa2bb 100755
--- a/tests/smoke/run.sh
+++ b/tests/smoke/run.sh
@@ -1,5 +1,5 @@
 set -e
-NIXPKGS_ALLOW_UNSUPPORTED_SYSTEM=1 nix-build  -I liminix-config=./tests/smoke/configuration.nix -o smoke.img
+NIXPKGS_ALLOW_UNSUPPORTED_SYSTEM=1 nix-build  -I liminix-config=./tests/smoke/configuration.nix --arg device "import ./devices/$DEVICE.nix" -o smoke.img
 
 TESTS=$(cat <<"EOF"