Implement proper panic messages

src/lib.rs

@@ -11,14 +11,8 @@ pub mod gfx;
 pub mod sdmc;
 
 pub mod services;
+pub mod panic;
 
 pub use srv::Srv;
 pub use gfx::Gfx;
 pub use sdmc::Sdmc;
-
-#[lang = "eh_personality"]
-extern "C" fn eh_personality() {}
-#[lang = "panic_fmt"]
-fn panic_fmt() -> ! {
-    unsafe { libctru::libc::abort() }
-}

src/panic.rs

@@ -0,0 +1,22 @@
+use core::fmt::{Arguments, Write};
+
+#[lang = "eh_personality"]
+extern "C" fn eh_personality() {}
+
+#[lang = "panic_fmt"]
+extern fn panic_fmt(fmt: Arguments, file: &str, line: u32) -> ! {
+    use gfx::Screen;
+    use console::Console;
+
+    let mut error_top = Console::init(Screen::Top);
+    let mut error_bottom = Console::init(Screen::Bottom);
+
+    writeln!(error_top, "--------------------------------------------------").unwrap();
+    writeln!(error_top, "PANIC in {} at line {}:", file, line).unwrap();
+    writeln!(error_top, "    {}", fmt).unwrap();
+    write!(error_top, "\x1b[29;00H--------------------------------------------------").unwrap();
+
+    writeln!(error_bottom, "").unwrap();     
+
+    loop {}
+}