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| author | Richard Weinberger <richard@nod.at> | 2011-07-25 17:12:47 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-25 20:57:12 -0700 |
| commit | f956b3e40ad7b9f7c0d33b80fe78f57fedb74f49 (patch) | |
| tree | 44e5b311271d6da81df967de711a78e042d16af9 /arch | |
| parent | 22e9b917ab7ccd98046ad9428fb28967f0744605 (diff) | |
| download | lwn-f956b3e40ad7b9f7c0d33b80fe78f57fedb74f49.tar.gz lwn-f956b3e40ad7b9f7c0d33b80fe78f57fedb74f49.zip | |
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')
| -rw-r--r-- | arch/um/os-Linux/user_syms.c | 5 |
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 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 |