tree 8d4a949d0852656ed54e0610d6a316987117be71
parent bd3be240cb4e513c3d5e7d773ab9a8ce646befbd
author Shi Weihua <shiwh@cn.fujitsu.com> 1203387909 +0800
committer Tony Luck <tony.luck@intel.com> 1204668659 -0800

[IA64] signal(ia64): add a signal stack overflow check

The similar check has been added to x86_32(i386) in commit
id 83bd01024b1fdfc41d9b758e5669e80fca72df66.
So we add this check to ia64 and improve it a liitle bit in that
we need to check for stack overflow only when the signal is on stack.

Signed-off-by: Shi Weihua <shiwh@cn.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>