first interrupt handler + setup IDT

kernel/src/lib.rs

@@ -0,0 +1,62 @@
+#![no_std]
+
+#![feature(abi_x86_interrupt)]
+
+use core::arch::asm;
+use limine::request::{RequestsEndMarker, RequestsStartMarker};
+use limine::BaseRevision;
+
+pub use lib_serial::{serial_print, serial_println, serial_read};
+pub use lib_ascii::{print, print_log, println, println_log, WRITER};
+
+mod arch;
+
+use lib_framebuffer;
+
+
+/// Sets the base revision to the latest revision supported by the crate.
+/// See specification for further info.
+/// Be sure to mark all limine requests with #[used], otherwise they may be removed by the compiler.
+#[used]
+// The .requests section allows limine to find the requests faster and more safely.
+#[link_section = ".requests"]
+static BASE_REVISION: BaseRevision = BaseRevision::new();
+
+/// Define the stand and end markers for Limine requests.
+#[used]
+#[link_section = ".requests_start_marker"]
+static _START_MARKER: RequestsStartMarker = RequestsStartMarker::new();
+#[used]
+#[link_section = ".requests_end_marker"]
+static _END_MARKER: RequestsEndMarker = RequestsEndMarker::new();
+
+#[panic_handler]
+fn rust_panic(_info: &core::panic::PanicInfo) -> ! {
+    hcf();
+}
+
+pub fn hcf() -> ! {
+    loop {
+        unsafe {
+            #[cfg(target_arch = "x86_64")]
+            asm!("hlt");
+            #[cfg(any(target_arch = "aarch64", target_arch = "riscv64"))]
+            asm!("wfi");
+            #[cfg(target_arch = "loongarch64")]
+            asm!("idle 0");
+        }
+    }
+}
+
+pub fn boot() -> Result<(), &'static str> {
+    
+    if !BASE_REVISION.is_supported() {
+        return Err("base revision not supported");
+    }
+
+    lib_serial::init()?;
+    arch::x86_64::interrupts::init_idt();
+    
+    
+    Ok(())
+}