feat: add pmm, add vmm, add allocator, create memory management foundation

kernel/src/debug.rs

@@ -0,0 +1,57 @@
+pub mod serial;
+
+use embedded_graphics::pixelcolor::Rgb888;
+use embedded_graphics::prelude::RgbColor;
+
+pub enum LogLevel {
+    Info, Warn, Error,
+}
+
+impl LogLevel {
+    pub fn serial_color_code(&self) -> &str {
+        match self {
+            LogLevel::Info  => "\x1b[32m",
+            LogLevel::Warn  => "\x1b[33m",
+            LogLevel::Error => "\x1b[31m",
+        }
+    }
+
+    pub fn console_color(&self) -> Rgb888 {
+        match self {
+            LogLevel::Info  => Rgb888::GREEN,
+            LogLevel::Warn  => Rgb888::YELLOW,
+            LogLevel::Error => Rgb888::RED,
+        }
+    }
+}
+
+#[macro_export]
+macro_rules! log {
+    ($console:expr, $level:expr, $module:expr, $($arg:tt)*) => {{
+        use core::fmt::Write;
+        use embedded_graphics::pixelcolor::Rgb888;
+
+        // Visual screen output
+        $console.set_color($level.console_color());
+        let _ = write!($console, "[ LOG ] ");
+        
+        $console.set_color(Rgb888::WHITE);
+        let _ = write!($console, "{:<6} | ", $module);
+        let _ = writeln!($console, $($arg)*);
+
+        // Serial debug output
+        let mut sp = unsafe { $crate::debug::serial::SerialPort::init() };
+        let _ = writeln!(
+            sp, 
+            "{}[{:>5}]\x1b[0m {:<8} | {}", 
+            $level.serial_color_code(), 
+            "LOG", 
+            $module, 
+            format_args!($($arg)*)
+        );
+    }};
+}
+
+#[macro_export] macro_rules! info  { ($c:expr, $m:expr, $($p:tt)*) => { $crate::log!($c, $crate::debug::LogLevel::Info, $m, $($p)*) }; }
+#[macro_export] macro_rules! warn  { ($c:expr, $m:expr, $($p:tt)*) => { $crate::log!($c, $crate::debug::LogLevel::Warn, $m, $($p)*) }; }
+#[macro_export] macro_rules! error { ($c:expr, $m:expr, $($p:tt)*) => { $crate::log!($c, $crate::debug::LogLevel::Error, $m, $($p)*) }; }