kernel-ark/arch/x86/power
Joseph Cihula 9b7b89efa3 x86: disable stack-protector for __restore_processor_state()
The __restore_processor_state() fn restores %gs on resume from S3.  As
such, it cannot be protected by the stack-protector guard since %gs will
not be correct on function entry.

There are only a few other fns in this file and it should not negatively
impact kernel security that they will also have the stack-protector
guard removed (and so it's not worth moving them to another file).

Without this change, S3 resume on a kernel built with
CONFIG_CC_STACKPROTECTOR_ALL=y will fail.

Signed-off-by: Joseph Cihula <joseph.cihula@intel.com>
Tested-by: Chris Wright <chrisw@sous-sol.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Tejun Heo <tj@kernel.org>
LKML-Reference: <49D13385.5060900@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-03 19:48:41 +02:00
..
cpu_32.c pm: rework includes, remove arch ifdefs 2009-04-01 08:59:16 -07:00
cpu_64.c pm: rework includes, remove arch ifdefs 2009-04-01 08:59:16 -07:00
hibernate_32.c x86, hibernate: fix breakage on x86_32 with CONFIG_NUMA set 2008-11-12 23:28:51 +01:00
hibernate_64.c pm: rework includes, remove arch ifdefs 2009-04-01 08:59:16 -07:00
hibernate_asm_32.S x86: use _types.h headers in asm where available 2009-02-13 11:35:01 -08:00
hibernate_asm_64.S x86: use _types.h headers in asm where available 2009-02-13 11:35:01 -08:00
Makefile x86: disable stack-protector for __restore_processor_state() 2009-04-03 19:48:41 +02:00