mirror of
https://github.com/xomboverlord/xomb.git
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c6fa2895e2
Core kernel infrastructure: - Multiboot2 boot with GRUB, long mode setup, higher-half kernel - Serial port output for debugging - Unified boot info abstraction for future UEFI support Memory management: - Physical frame allocator with bitmap tracking - Page table manipulation via recursive mapping (PML4[510]) - Support for 4KB, 2MB, and 1GB page mappings - TLB invalidation and proper NXE support Build system: - Cargo-based build with custom x86_64 target - Makefile for QEMU and Bochs testing - GRUB ISO generation for multiboot2 boot
32 lines
790 B
Rust
32 lines
790 B
Rust
//! XOmB Multiboot2 Entry Point
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//!
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//! This is the Rust entry point for multiboot2 boot (used by Bochs/GRUB).
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//! The actual entry is in assembly (boot/multiboot2_header.s), which then
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//! calls into this code.
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#![no_std]
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#![no_main]
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use core::panic::PanicInfo;
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use core::fmt::Write;
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// Re-export the library
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use xomb::serial::SerialPort;
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// Pull in the multiboot2 entry point
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pub use xomb::boot::multiboot2::multiboot2_entry;
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/// Panic handler for multiboot2 boot
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#[panic_handler]
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fn panic(info: &PanicInfo) -> ! {
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let mut serial = unsafe { SerialPort::new(0x3F8) };
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let _ = writeln!(serial, "\n!!! KERNEL PANIC !!!");
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let _ = writeln!(serial, "{}", info);
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loop {
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unsafe {
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core::arch::asm!("cli; hlt", options(nostack, nomem));
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}
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}
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}
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