Add kernel print macros

src/main.rs

@@ -1,6 +1,7 @@
 #![no_std]
 #![no_main]
 
+#[macro_use]
 mod vga_buffer;
 
 use core::panic::PanicInfo;
@@ -12,11 +13,7 @@ fn panic(_info: &PanicInfo) -> !{
 
 #[no_mangle]
 pub extern "C" fn _start() -> ! {
-
-  use core::fmt::Write;
-  vga_buffer::WRITER.lock().write_str("Gamarjoba, munde").unwrap();
-  write!(vga_buffer::WRITER.lock(), ", hella {} bro", 2).unwrap();
-
+  println!("Gamarjoba, munde: {}", 1);
   loop {}
 }
 

src/vga_buffer.rs

@@ -3,6 +3,24 @@ use core::fmt;
 use spin::Mutex;
 use lazy_static::lazy_static;
 
+
+#[macro_export]
+macro_rules! print {
+    ($($arg:tt)*) => ($crate::vga_buffer::_print(format_args!($($arg)*)));
+}
+
+#[macro_export]
+macro_rules! println {
+    () => ($crate::print!("\n"));
+    ($($arg:tt)*) => ($crate::print!("{}\n", format_args!($($arg)*)));
+}
+
+#[doc(hidden)]
+pub fn _print(args: fmt::Arguments) {
+    use core::fmt::Write;
+    WRITER.lock().write_fmt(args).unwrap();
+}
+
 #[allow(dead_code)]
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 #[repr(u8)]