change entrypoint signature of all examples

agb/examples/beep.rs

@@ -1,12 +1,12 @@
 #![no_std]
-#![feature(start)]
+#![no_main]
 
 extern crate agb;
 
 use agb::sound;
 
-#[start]
-fn main(_argc: isize, _argv: *const *const u8) -> isize {
+#[no_mangle]
+pub fn main() -> ! {
     let gba = agb::Gba::new();
 
     gba.sound.enable();

agb/examples/bitmap3.rs

@@ -1,5 +1,5 @@
 #![no_std]
-#![feature(start)]
+#![no_main]
 
 extern crate agb;
 
@@ -10,8 +10,8 @@ struct Vector2D {
     y: i32,
 }
 
-#[start]
-fn main(_argc: isize, _argv: *const *const u8) -> isize {
+#[no_mangle]
+pub fn main() -> ! {
     let mut gba = agb::Gba::new();
     let mut bitmap = gba.display.video.bitmap3();
     let vblank = gba.display.vblank.get();

agb/examples/bitmap4.rs

@@ -1,12 +1,12 @@
 #![no_std]
-#![feature(start)]
+#![no_main]
 
 extern crate agb;
 
 use agb::display;
 
-#[start]
-fn main(_argc: isize, _argv: *const *const u8) -> isize {
+#[no_mangle]
+pub fn main() -> ! {
     let mut gba = agb::Gba::new();
     let mut bitmap = gba.display.video.bitmap4();
     let vblank = gba.display.vblank.get();

agb/examples/chicken.rs

@@ -1,5 +1,5 @@
 #![no_std]
-#![feature(start)]
+#![no_main]
 
 extern crate agb;
 use agb::{
@@ -35,8 +35,8 @@ fn frame_ranger(count: u32, start: u32, end: u32, delay: u32) -> u32 {
     ((count / delay) % (end + 1 - start)) + start
 }
 
-#[start]
-fn main(_argc: isize, _argv: *const *const u8) -> isize {
+#[no_mangle]
+pub fn main() -> ! {
     let map_as_grid: &[[u16; 32]; 32] = unsafe {
         (&MAP_MAP as *const [u16; 1024] as *const [[u16; 32]; 32])
             .as_ref()

agb/examples/multiple_video.rs

@@ -1,5 +1,5 @@
 #![no_std]
-#![feature(start)]
+#![no_main]
 
 extern crate agb;
 
@@ -10,8 +10,8 @@ struct Vector2D {
     y: i32,
 }
 
-#[start]
-fn main(_argc: isize, _argv: *const *const u8) -> isize {
+#[no_mangle]
+pub fn main() -> ! {
     let mut gba = agb::Gba::new();
     let mut vblank = gba.display.vblank.get();
     let mut input = agb::input::ButtonController::new();

agb/examples/output.rs

@@ -1,9 +1,9 @@
 #![no_std]
-#![feature(start)]
+#![no_main]
 
 extern crate agb;
-#[start]
-fn main(_argc: isize, _argv: *const *const u8) -> isize {
+#[no_mangle]
+pub fn main() -> ! {
     let mut gba = agb::Gba::new();
     let mut mgba = agb::mgba::Mgba::new().unwrap();
 

agb/examples/panic.rs

@@ -1,12 +1,12 @@
 #![no_std]
-#![feature(start)]
+#![no_main]
 
 extern crate agb;
 
 use agb::display;
 
-#[start]
-fn main(_argc: isize, _argv: *const *const u8) -> isize {
+#[no_mangle]
+pub fn main() -> ! {
     let mut gba = agb::Gba::new();
 
     let mut bitmap = gba.display.video.bitmap3();

agb/examples/syscall.rs

@@ -1,11 +1,11 @@
 #![no_std]
-#![feature(start)]
+#![no_main]
 
 extern crate agb;
 use agb::{display, syscall};
 
-#[start]
-fn main(_argc: isize, _argv: *const *const u8) -> isize {
+#[no_mangle]
+pub fn main() -> ! {
     let mut gba = agb::Gba::new();
     let mut bitmap = gba.display.video.bitmap3();
 

agb/examples/test_logo.rs

@@ -1,12 +1,12 @@
 #![no_std]
-#![feature(start)]
+#![no_main]
 
 extern crate agb;
 
 use agb::display::example_logo;
 
-#[start]
-fn main(_argc: isize, _argv: *const *const u8) -> isize {
+#[no_mangle]
+pub fn main() -> ! {
     let mut gba = agb::Gba::new();
     let mut gfx = gba.display.video.tiled0();