feat: added shutdown command

kernel/libk/libk.c

@@ -3,8 +3,9 @@
 //
 
 #include <stdbool.h>
+#include <libk/kprint.h>
+#include <attributes.h>
 #include "libk.h"
-#include "kprint.h"
 
 bool k_addr_in_kspace(void* addr) {
     return addr > kernel_start && addr < kernel_end;
@@ -14,15 +15,16 @@ void k_wait_for_interrupt() {
     __asm__ __volatile__("hlt;");
 }
 
-void k_panics(const char *msg) {
+void noreturn k_panics(const char *msg) {
+    // todo this is not printed
     kprint(msg);
-    kprint("PANIC!");
-    __asm__ __volatile__("cli;"
-                         "hlt;");
+    k_panic();
 }
 
-void k_panic() {
+void noreturn k_panic() {
     kprint("PANIC!");
-    __asm__ __volatile__("cli;"
-                         "hlt;");
+    while (true) {
+        __asm__ __volatile__("cli;"
+                             "hlt;");
+    }
 }