diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h
index 9757b1a..6adcc29 100644
--- a/include/linux/kgdb.h
+++ b/include/linux/kgdb.h
@@ -261,10 +261,12 @@
 
 extern struct kgdb_arch		arch_kgdb_ops;
 
+extern unsigned long __weak kgdb_arch_pc(int exception, struct pt_regs *regs);
+
 extern int kgdb_register_io_module(struct kgdb_io *local_kgdb_io_ops);
 extern void kgdb_unregister_io_module(struct kgdb_io *local_kgdb_io_ops);
 
-extern int kgdb_hex2long(char **ptr, long *long_val);
+extern int kgdb_hex2long(char **ptr, unsigned long *long_val);
 extern int kgdb_mem2hex(char *mem, char *buf, int count);
 extern int kgdb_hex2mem(char *buf, char *mem, int count);