initial commit

src/setup.rs

@@ -0,0 +1,16 @@
+use std::os::uefi as uefi_std;
+
+pub fn init() {
+    let system_table = uefi_std::env::system_table();
+    let image_handle = uefi_std::env::image_handle();
+
+    // SAFETY: The uefi variables above come from the Rust std.
+    // These variables are nonnull and calling the uefi crates with these values is validated
+    // to be corrected by hand.
+    unsafe {
+        uefi::table::set_system_table(system_table.as_ptr().cast());
+        let handle = uefi::Handle::from_ptr(image_handle.as_ptr().cast())
+            .expect("unable to resolve image handle");
+        uefi::boot::set_image_handle(handle);
+    }
+}