initial commit

Build small no_std example for rv64i target.

This code executes some linux syscalls as demo and therefore expects to
be executed in rv64 linux.

1 files changed, 20 insertions, 0 deletions

diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..f1ea8b0
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,20 @@
+#![no_std]
+#![no_main]
+
+use user_sw::{eprintln, println, sys};
+
+fn main() {
+    println!("Hello {} from rust main().", 1337);
+}
+
+#[no_mangle]
+pub extern "C" fn _start() -> ! {
+    main();
+    sys::exit(0);
+}
+
+#[panic_handler]
+fn panic_handler(info: &core::panic::PanicInfo) -> ! {
+    eprintln!("{}", info);
+    sys::exit(42);
+}