Add raw trace function

src/debug.rs

@@ -25,6 +25,16 @@ impl fmt::Write for TracePrinter {
     }
 }
 
+/// Trace raw message into the kernel's log. If the message is not a valid unicode string, it will
+/// get discarded.
+pub fn trace_raw(data: &[u8]) {
+    if let Ok(str) = core::str::from_utf8(data) {
+        unsafe {
+            crate::sys::debug_trace(str);
+        }
+    }
+}
+
 #[doc(hidden)]
 pub fn _debug_trace(a: core::fmt::Arguments<'_>) {
     use fmt::Write;