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authorRichard Weinberger <richard@nod.at>2011-07-25 17:12:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-25 20:57:12 -0700
commitf956b3e40ad7b9f7c0d33b80fe78f57fedb74f49 (patch)
tree44e5b311271d6da81df967de711a78e042d16af9 /arch/um/os-Linux
parent22e9b917ab7ccd98046ad9428fb28967f0744605 (diff)
downloadop-kernel-dev-f956b3e40ad7b9f7c0d33b80fe78f57fedb74f49.zip
op-kernel-dev-f956b3e40ad7b9f7c0d33b80fe78f57fedb74f49.tar.gz
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>
Diffstat (limited to 'arch/um/os-Linux')
-rw-r--r--arch/um/os-Linux/user_syms.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/um/os-Linux/user_syms.c b/arch/um/os-Linux/user_syms.c
index 05f5ea8..45ffe46 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
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