From c14dd2cd33b5f5bb07f0d9f8c2cf45a5211384e9 Mon Sep 17 00:00:00 2001
From: Corwin Kuiper <corwin@kuiper.dev>
Date: Sat, 22 May 2021 21:22:44 +0100
Subject: [PATCH] change entrypoint signature of all examples

---
 agb/examples/beep.rs           | 6 +++---
 agb/examples/bitmap3.rs        | 6 +++---
 agb/examples/bitmap4.rs        | 6 +++---
 agb/examples/chicken.rs        | 6 +++---
 agb/examples/multiple_video.rs | 6 +++---
 agb/examples/output.rs         | 6 +++---
 agb/examples/panic.rs          | 6 +++---
 agb/examples/syscall.rs        | 6 +++---
 agb/examples/test_logo.rs      | 6 +++---
 9 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/agb/examples/beep.rs b/agb/examples/beep.rs
index 1b5c202..d44562f 100644
--- a/agb/examples/beep.rs
+++ b/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();
diff --git a/agb/examples/bitmap3.rs b/agb/examples/bitmap3.rs
index aa31aed..b970896 100644
--- a/agb/examples/bitmap3.rs
+++ b/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();
diff --git a/agb/examples/bitmap4.rs b/agb/examples/bitmap4.rs
index d04251e..a9ffd6e 100644
--- a/agb/examples/bitmap4.rs
+++ b/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();
diff --git a/agb/examples/chicken.rs b/agb/examples/chicken.rs
index aaec705..b7129f8 100644
--- a/agb/examples/chicken.rs
+++ b/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()
diff --git a/agb/examples/multiple_video.rs b/agb/examples/multiple_video.rs
index b34da5b..04f18e9 100644
--- a/agb/examples/multiple_video.rs
+++ b/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();
diff --git a/agb/examples/output.rs b/agb/examples/output.rs
index 24d18ff..cb2675d 100644
--- a/agb/examples/output.rs
+++ b/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();
 
diff --git a/agb/examples/panic.rs b/agb/examples/panic.rs
index 5437e0a..cc45c78 100644
--- a/agb/examples/panic.rs
+++ b/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();
diff --git a/agb/examples/syscall.rs b/agb/examples/syscall.rs
index 65767b1..4b99a11 100644
--- a/agb/examples/syscall.rs
+++ b/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();
 
diff --git a/agb/examples/test_logo.rs b/agb/examples/test_logo.rs
index 05c776a..724c84f 100644
--- a/agb/examples/test_logo.rs
+++ b/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();