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killerboss 2024-11-24 22:06:54 +01:00
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10
.cargo/config.toml Normal file
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[build]
target = "x86_64-matrix_os.json"
[unstable]
build-std = ["core", "compiler_builtins"]
build-std-features = ["compiler-builtins-mem"]
panic-abort-tests = true
[target.'cfg(target_os = "none")']
runner = "bootimage runner"

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.gitignore vendored Normal file
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/target

8
.idea/.gitignore vendored Normal file
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# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

11
.idea/matrix_os_kernel.iml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<module type="EMPTY_MODULE" version="4">
<component name="NewModuleRootManager">
<content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
<excludeFolder url="file://$MODULE_DIR$/target" />
</content>
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
</component>
</module>

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.idea/modules.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/.idea/matrix_os_kernel.iml" filepath="$PROJECT_DIR$/.idea/matrix_os_kernel.iml" />
</modules>
</component>
</project>

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.idea/vcs.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="" vcs="Git" />
</component>
</project>

102
Cargo.lock generated Normal file
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 4
[[package]]
name = "autocfg"
version = "1.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
[[package]]
name = "bit_field"
version = "0.10.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "dc827186963e592360843fb5ba4b973e145841266c1357f7180c43526f2e5b61"
[[package]]
name = "bitflags"
version = "2.6.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
[[package]]
name = "bootloader"
version = "0.9.29"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "365861702868e2a37b4247aaecc7bd8f4389baec8d025497ad8ba7ff37ee9440"
[[package]]
name = "lazy_static"
version = "1.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
dependencies = [
"spin",
]
[[package]]
name = "lock_api"
version = "0.4.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "07af8b9cdd281b7915f413fa73f29ebd5d55d0d3f0155584dade1ff18cea1b17"
dependencies = [
"autocfg",
"scopeguard",
]
[[package]]
name = "matrix_os_kernel"
version = "0.1.0"
dependencies = [
"bootloader",
"lazy_static",
"spin",
"volatile 0.2.7",
"x86_64",
]
[[package]]
name = "rustversion"
version = "1.0.18"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0e819f2bc632f285be6d7cd36e25940d45b2391dd6d9b939e79de557f7014248"
[[package]]
name = "scopeguard"
version = "1.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
[[package]]
name = "spin"
version = "0.9.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
dependencies = [
"lock_api",
]
[[package]]
name = "volatile"
version = "0.2.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f6b06ad3ed06fef1713569d547cdbdb439eafed76341820fb0e0344f29a41945"
[[package]]
name = "volatile"
version = "0.4.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "442887c63f2c839b346c192d047a7c87e73d0689c9157b00b53dcc27dd5ea793"
[[package]]
name = "x86_64"
version = "0.14.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "96cb6fd45bfeab6a5055c5bffdb08768bd0c069f1d946debe585bbb380a7c062"
dependencies = [
"bit_field",
"bitflags",
"rustversion",
"volatile 0.4.6",
]

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Cargo.toml Normal file
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[package]
name = "matrix_os_kernel"
version = "0.1.0"
edition = "2021"
[dependencies]
bootloader = "0.9"
lazy_static = { version = "1.5.0", features = ["spin_no_std"] }
spin = "0.9.8"
volatile = "0.2.6"
x86_64 = "0.14.2"
# the profile used for `cargo build`
[profile.dev]
panic = "abort" # disable stack unwinding on panic
# the profile used for `cargo build --release`
[profile.release]
panic = "abort" # disable stack unwinding on panic
[package.metadata.bootimage]
test-args = ["-device", "isa-debug-exit,iobase=0xf4,iosize=0x04"]
test-success-exit-code = 33

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src/main.rs Normal file
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#![no_std]
#![no_main]
#![feature(custom_test_frameworks)]
#![test_runner(crate::test_runner)]
#![reexport_test_harness_main = "test_main"]
mod vga_buffer;
use core::panic::PanicInfo;
#[no_mangle]
pub extern "C" fn _start() -> ! {
#[cfg(test)]
test_main();
loop {}
}
#[panic_handler]
fn panic(info: &PanicInfo) -> ! {
println!("{}", info);
loop {}
}
fn test_runner(tests: &[&dyn Fn()]) {
println!("Running {} tests", tests.len());
for test in tests {
test();
}
/// new
exit_qemu(QemuExitCode::Success);
}
#[test_case]
fn trivial_assertion() {
print!("trivial assertion... ");
assert_eq!(1, 1);
println!("[ok]");
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[repr(u32)]
pub enum QemuExitCode {
Success = 0x10,
Failed = 0x11,
}
pub fn exit_qemu(exit_code: QemuExitCode) {
use x86_64::instructions::port::Port;
unsafe {
let mut port = Port::new(0xf4);
port.write(exit_code as u32);
}
}

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src/vga_buffer.rs Normal file
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#[allow(dead_code)]
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[repr(u8)]
pub enum Color {
Black = 0,
Blue = 1,
Green = 2,
Cyan = 3,
Red = 4,
Magenta = 5,
Brown = 6,
LightGray = 7,
DarkGray = 8,
LightBlue = 9,
LightGreen = 10,
LightCyan = 11,
LightRed = 12,
Pink = 13,
Yellow = 14,
White = 15,
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[repr(transparent)]
struct ColorCode(u8);
impl ColorCode {
fn new(foreground: Color, background: Color) -> ColorCode {
ColorCode((background as u8) << 4 | (foreground as u8))
}
}
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
#[repr(C)]
struct ScreenChar {
ascii_character: u8,
color_code: ColorCode,
}
const BUFFER_HEIGHT: usize = 25;
const BUFFER_WIDTH: usize = 80;
use volatile::Volatile;
struct Buffer {
chars: [[Volatile<ScreenChar>; BUFFER_WIDTH]; BUFFER_HEIGHT],
}
pub struct Writer {
column_position: usize,
color_code: ColorCode,
buffer: &'static mut Buffer,
}
impl Writer {
pub fn write_byte(&mut self, byte: u8) {
match byte {
b'\n' => self.new_line(),
byte => {
if self.column_position >= BUFFER_WIDTH {
self.new_line();
}
let row = BUFFER_HEIGHT - 1;
let col = self.column_position;
let color_code = self.color_code;
self.buffer.chars[row][col].write(ScreenChar {
ascii_character: byte,
color_code,
});
self.column_position += 1;
}
}
}
pub fn write_string(&mut self, s: &str) {
for byte in s.bytes() {
match byte {
// printable ASCII byte or newline
0x20..=0x7e | b'\n' => self.write_byte(byte),
// not part of printable ASCII range
_ => self.write_byte(0xfe),
}
}
}
fn new_line(&mut self) {
for row in 1..BUFFER_HEIGHT {
for col in 0..BUFFER_WIDTH {
let character = self.buffer.chars[row][col].read();
self.buffer.chars[row - 1][col].write(character);
}
}
self.clear_row(BUFFER_HEIGHT - 1);
self.column_position = 0;
}
fn clear_row(&mut self, row: usize) {
let blank = ScreenChar {
ascii_character: b' ',
color_code: self.color_code,
};
for col in 0..BUFFER_WIDTH {
self.buffer.chars[row][col].write(blank);
}
}
}
use core::fmt;
use lazy_static::lazy_static;
use spin::mutex::Mutex;
impl fmt::Write for Writer {
fn write_str(&mut self, s: &str) -> fmt::Result {
self.write_string(s);
Ok(())
}
}
lazy_static! {
pub static ref WRITER: Mutex<Writer> = Mutex::new(Writer {
column_position: 0,
color_code: ColorCode::new(Color::Yellow, Color::Black),
buffer: unsafe { &mut *(0xb8000 as *mut Buffer) },
});
}
#[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();
}

15
x86_64-matrix_os.json Normal file
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{
"llvm-target": "x86_64-unknown-none",
"data-layout": "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128",
"arch": "x86_64",
"target-endian": "little",
"target-pointer-width": "64",
"target-c-int-width": "32",
"os": "none",
"executables": true,
"linker-flavor": "ld.lld",
"linker": "rust-lld",
"panic-strategy": "abort",
"disable-redzone": true,
"features": "-mmx,-sse,+soft-float"
}