Kernel: Cleanup returns from any kind on interrupts

kernel/include/kernel/Process.h

@@ -43,7 +43,7 @@ namespace Kernel
 		~Process();
 		void cleanup_function();
 
-		void exit(int status);
+		void exit(int status, int signal);
 
 		void add_thread(Thread*);
 		void on_thread_exit(Thread&);

kernel/include/kernel/Thread.h

@@ -116,7 +116,6 @@ namespace Kernel
 
 		alignas(16) uint8_t m_sse_storage[512];
 
-		friend class TerminateBlocker;
 		friend class Scheduler;
 	};