From f956b3e40ad7b9f7c0d33b80fe78f57fedb74f49 Mon Sep 17 00:00:00 2001 From: Richard Weinberger <richard@nod.at> Date: Mon, 25 Jul 2011 17:12:47 -0700 Subject: [PATCH] um: fix _FORTIFY_SOURCE=2 support for kernel modules When UML is compiled with _FORTIFY_SOURCE we have to export all _chk() functions which are used in modules. For now it's only the case for __sprintf_chk(). Tested-by: Florian Fainelli <florian@openwrt.org> Reported-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Richard Weinberger <richard@nod.at> Acked-by: Vitaliy Ivanov <vitalivanov@gmail.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- arch/um/os-Linux/user_syms.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/um/os-Linux/user_syms.c b/arch/um/os-Linux/user_syms.c index 05f5ea8e83d2..45ffe46871e0 100644 --- a/arch/um/os-Linux/user_syms.c +++ b/arch/um/os-Linux/user_syms.c @@ -113,3 +113,8 @@ EXPORT_SYMBOL(__stack_smash_handler); extern long __guard __attribute__((weak)); EXPORT_SYMBOL(__guard); + +#ifdef _FORTIFY_SOURCE +extern int __sprintf_chk(char *str, int flag, size_t strlen, const char *format); +EXPORT_SYMBOL(__sprintf_chk); +#endif -- 2.34.1