enable docker ppp

hc

2023-12-09 95099d4622f8cb224d94e314c7a8e0df60b13f87

 kernel/arch/arm/kernel/signal.h
..
..
@@ -9,3 +9,5 @@
9
9
 	struct siginfo info;
10
10
 	struct sigframe sig;
11
11
 };
12
+
13
+extern struct page *get_signal_page(void);