rcore-tutorial/os/src/console.rs
2022-06-23 22:23:49 +08:00

38 lines
924 B
Rust

use crate::drivers::chardev::CharDevice;
#[cfg(feature = "board_qemu")]
use crate::drivers::chardev::UART;
#[cfg(feature = "board_k210")]
use crate::sbi::console_putchar;
use core::fmt::{self, Write};
struct Stdout;
impl Write for Stdout {
fn write_str(&mut self, s: &str) -> fmt::Result {
for c in s.chars() {
#[cfg(feature = "board_qemu")]
UART.write(c as u8);
#[cfg(feature = "board_k210")]
console_putchar(c as usize);
}
Ok(())
}
}
pub fn print(args: fmt::Arguments) {
Stdout.write_fmt(args).unwrap();
}
#[macro_export]
macro_rules! print {
($fmt: literal $(, $($arg: tt)+)?) => {
$crate::console::print(format_args!($fmt $(, $($arg)+)?))
}
}
#[macro_export]
macro_rules! println {
($fmt: literal $(, $($arg: tt)+)?) => {
$crate::console::print(format_args!(concat!($fmt, "\n") $(, $($arg)+)?))
}
}