test-spawn: add program to test spawning

Signed-off-by: Sean Cross <sean@xobs.io>

test-spawn/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "test-spawn"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+xous = {path = "../xous-rs" }

test-spawn/src/main.rs

@@ -0,0 +1,19 @@
+fn main() {
+    println!("Loading stub file");
+    let spawn_stub = include_bytes!("spawn-stub");
+    println!("About to launch a process...");
+
+    let args = xous::ProcessArgs::new(spawn_stub);
+    let process = xous::create_process(args).unwrap();
+    println!(
+        "Connected to process. PID: {:?}, CID: {:?}",
+        process.pid, process.cid
+    );
+    let result = xous::send_message(
+        process.cid,
+        xous::Message::new_blocking_scalar(4, 1, 2, 3, 4),
+    )
+    .unwrap();
+    println!("Result of ping: {:?}", result);
+    println!("Hello, world!");
+}