banan-os/kernel/include/kernel/Panic.h

#pragma once

#include <kernel/Debug.h>

#define panic(...) detail::panic_impl(__FILE__, __LINE__, __VA_ARGS__)

namespace Kernel::detail
{

	extern bool g_paniced;

	template<typename... Args>
	__attribute__((__noreturn__))
	static void panic_impl(const char* file, int line, const char* message, Args&&... args)
	{
		asm volatile("cli");
		derrorln("Kernel panic at {}:{}", file, line);
		derrorln(message, BAN::forward<Args>(args)...);
		if (!g_paniced)
		{
			g_paniced = true;
			Debug::dump_stack_trace();
		}
		for (;;)
			asm volatile("hlt");
		__builtin_unreachable();
	}

}