Index: kernel/generic/include/panic.h
===================================================================
--- kernel/generic/include/panic.h	(revision d19b3fcc8f46d58029778b0ba79ad3d796f39697)
+++ kernel/generic/include/panic.h	(revision 88e43bc385a97c7449a8a8bdd10a598a9497c134)
@@ -53,4 +53,8 @@
 	panic_common(PANIC_MEMTRAP, istate, access, addr, fmt, ##__VA_ARGS__)
 
+#define unreachable() \
+	panic_assert("%s() at %s:%u:\nUnreachable line reached.", \
+	    __func__, __FILE__, __LINE__);
+
 typedef enum {
 	PANIC_OTHER,