os/
console.rs

1//! SBI console driver, for text output
2
3use crate::sbi::console_putchar;
4use core::fmt::{self, Write};
5
6struct Stdout;
7
8impl Write for Stdout {
9    fn write_str(&mut self, s: &str) -> fmt::Result {
10        for c in s.chars() {
11            console_putchar(c as usize);
12        }
13        Ok(())
14    }
15}
16
17pub fn print(args: fmt::Arguments) {
18    Stdout.write_fmt(args).unwrap();
19}
20
21/// print string macro
22#[macro_export]
23macro_rules! print {
24    ($fmt: literal $(, $($arg: tt)+)?) => {
25        $crate::console::print(format_args!($fmt $(, $($arg)+)?));
26    }
27}
28
29/// println string macro
30#[macro_export]
31macro_rules! println {
32    ($fmt: literal $(, $($arg: tt)+)?) => {
33        $crate::console::print(format_args!(concat!($fmt, "\n") $(, $($arg)+)?));
34    }
35}
os/console.rs

os/
console.rs
