worked on issue #2

ableos/src/arch/riscv/drivers/serial.rs

@@ -4,14 +4,25 @@ use core::fmt::Error;
 /// Prints to the host through the serial interface.
 #[macro_export]
 macro_rules! serial_print {
-    ($($arg:tt)*) => {};
+    ($($arg:tt)*) => {
+
+crate::arch::drivers::serial::SERIAL.lock().out(format_args!($($arg)*))
+
+    };
 }
 /// Prints to the host through the serial interface, appending a newline.
 #[macro_export]
 macro_rules! serial_println {
-    () => {};
-    ($fmt:expr) => {};
-    ($fmt:expr, $($arg:tt)*) => {};
+    () => {
+        crate::arch::drivers::serial::SERIAL
+            .lock()
+            .out(format_args!("\r\n"))
+    };
+
+    ($($arg:tt)*) => ($crate::print!("{}\r\n", format_args!($($arg)*)));
+
+
+
 }
 
 pub struct Serial123 {
@@ -20,7 +31,7 @@ pub struct Serial123 {
 
 impl Serial123 {
     pub fn out(&mut self, s: ::core::fmt::Arguments) {
-        let uart_data = 0x10000000 as *mut u8;
+        let uart_data = self.uart_data as *mut u8;
         for c in b"Hello, world!\n" {
             unsafe { uart_data.write_volatile(*c) };
         }

ableos/src/arch/riscv/mod.rs

@@ -31,11 +31,14 @@ unsafe extern "C" fn _boot() -> ! {
 }
 
 extern "C" fn _start() -> ! {
+    /*
     let uart_data = 0x10000000 as *mut u8;
     for c in b"Hardcoded serial output\n" {
         unsafe { uart_data.write_volatile(*c) };
     }
-
+    */
+    crate::serial_print!("Hi");
+    crate::kmain::kernel_main();
     sloop()
 }