From: Paolo 'Blaisorblade' Giarrusso Date: Mon, 1 May 2006 19:16:06 +0000 (-0700) Subject: [PATCH] uml: export symbols added by GCC hardened X-Git-Tag: v2.6.17-rc4~78 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=cead61a6717a9873426b08d73a34a325e3546f5d;p=linux-2.6-omap-h63xx.git [PATCH] uml: export symbols added by GCC hardened GCC hardened introduces additional symbol refererences (for the canary and friends), also in modules - add weak export_symbols for them. We already tested that the weak declaration creates no problem on both GCC's providing the function definition and on GCC's which don't provide it. Signed-off-by: Paolo 'Blaisorblade' Giarrusso Acked-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/arch/um/os-Linux/user_syms.c b/arch/um/os-Linux/user_syms.c index 2598158e1f5..3f33165ada6 100644 --- a/arch/um/os-Linux/user_syms.c +++ b/arch/um/os-Linux/user_syms.c @@ -96,6 +96,13 @@ EXPORT_SYMBOL_PROTO(getuid); EXPORT_SYMBOL_PROTO(fsync); EXPORT_SYMBOL_PROTO(fdatasync); +/* Export symbols used by GCC for the stack protector. */ +extern void __stack_smash_handler(void *) __attribute__((weak)); +EXPORT_SYMBOL(__stack_smash_handler); + +extern long __guard __attribute__((weak)); +EXPORT_SYMBOL(__guard); + /* * Overrides for Emacs so that we follow Linus's tabbing style. * Emacs will notice this stuff at the end of the file and automatically