Added check for Console existence on panic

ctru-rs/examples/thread-basic.rs

@@ -13,6 +13,7 @@ fn main() {
     let hid = Hid::init().unwrap();
     let gfx = Gfx::default();
     let _console = Console::init(gfx.top_screen.borrow_mut());
+    drop(_console);
 
     let prio = thread::current().priority();
     println!("Main thread prio: {}\n", prio);

ctru-rs/src/console.rs

@@ -5,6 +5,20 @@ use ctru_sys::{consoleClear, consoleInit, consoleSelect, consoleSetWindow, Print
 
 use crate::gfx::Screen;
 
+static mut EMPTY_CONSOLE: PrintConsole = unsafe { const_zero::const_zero!(PrintConsole) };
+
+pub fn console_exists() -> bool {
+    unsafe {
+        let current_console = ctru_sys::consoleSelect(&mut EMPTY_CONSOLE);
+
+        let res = (*current_console).consoleInitialised;
+
+        ctru_sys::consoleSelect(current_console);
+
+        res
+    }
+}
+
 pub struct Console<'screen> {
     context: Box<PrintConsole>,
     screen: RefMut<'screen, dyn Screen>,
@@ -49,8 +63,6 @@ impl<'screen> Console<'screen> {
 
 impl Drop for Console<'_> {
     fn drop(&mut self) {
-        static mut EMPTY_CONSOLE: PrintConsole = unsafe { const_zero::const_zero!(PrintConsole) };
-
         unsafe {
             // Safety: We are about to deallocate the PrintConsole data pointed
             // to by libctru. Without this drop code libctru would have a

ctru-rs/src/lib.rs

@@ -20,7 +20,7 @@ pub fn init() {
         default_hook(info);
 
         // Only for panics in the main thread
-        if main_thread == thread::current().id() {
+        if main_thread == thread::current().id() && console::console_exists() {
             println!("\nPress SELECT to exit the software");
             let hid = services::hid::Hid::init().unwrap();