Index: kernel/arch/arm32/include/mm/frame.h
===================================================================
--- kernel/arch/arm32/include/mm/frame.h	(revision 46d8eb9b258c351fc7a0ec7a45162776b8adc3a2)
+++ kernel/arch/arm32/include/mm/frame.h	(revision 81c8d54932b8d433d80c1e2cc7f3bb31def15d79)
@@ -52,4 +52,5 @@
 
 extern uintptr_t last_frame;
+extern uintptr_t end_frame;
 
 extern void frame_arch_init(void);