91 lines
1.7 KiB
Rust
91 lines
1.7 KiB
Rust
#![no_std] // dont link the standard library
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#![no_main] // disable all rust-level entry points
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#![feature(custom_test_frameworks)]
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#![test_runner(crate::test_runner)]
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#![reexport_test_harness_main = "test_main"]
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use core::panic::PanicInfo;
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mod vga_buffer;
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mod serial;
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pub trait Testable {
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fn run(&self) -> ();
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}
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impl<T> Testable for T
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where
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T: Fn(),
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{
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fn run(&self) -> () {
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serial_print!("{}...\t", core::any::type_name::<T>());
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self();
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serial_println!("[ok]");
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}
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}
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static HELLO: &[u8] = b"Hello toto :3";
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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#[repr(u32)]
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pub enum QemuExitCode {
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Success = 0x10,
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Failed = 0x11,
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}
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pub fn exit_qemu(exit_code: QemuExitCode) {
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use x86_64::instructions::port::Port;
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unsafe {
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let mut port = Port::new(0xF4);
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port.write(exit_code as u32);
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}
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}
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// this function is the entry point since the linker
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// looks for a function named `_start` by default
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#[unsafe(no_mangle)]
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pub extern "C" fn _start() -> ! {
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println!("smoking cigarettes in the shower\nwhen they get wet i just light another\n:{}", 3);
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#[cfg(test)]
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test_main();
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loop {}
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}
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// panic handler
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#[cfg(not(test))]
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#[panic_handler]
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fn panic(info: &PanicInfo) -> ! {
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println!("{}", info);
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loop {}
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}
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// panic handler in test mode
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#[cfg(test)]
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#[panic_handler]
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fn panic(info: &PanicInfo) -> ! {
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serial_println!("[failed]\n");
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serial_println!("Error: {}\n", info);
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exit_qemu(QemuExitCode::Failed);
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loop {}
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}
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#[cfg(test)]
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pub fn test_runner(tests: &[&dyn Testable]) {
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serial_println!("Running {} tests", tests.len());
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for test in tests {
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test.run();
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}
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exit_qemu(QemuExitCode::Success);
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}
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#[test_case]
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fn trivial_assertion() {
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assert_eq!(1, 1);
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}
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