1 --- a/arch/um/os-Linux/user_syms.c
2 +++ b/arch/um/os-Linux/user_syms.c
3 @@ -18,6 +18,9 @@ extern void *memmove(void *, const void
4 extern void *memset(void *, int, size_t);
5 extern int printf(const char *, ...);
7 +extern int __sprintf_chk(char *str, int flag, size_t strlen, const char *format);
8 +EXPORT_SYMBOL(__sprintf_chk);
10 /* If it's not defined, the export is included in lib/string.c.*/
11 #ifdef __HAVE_ARCH_STRSTR
12 EXPORT_SYMBOL(strstr);