[ros-dev] Migrate ntoskrnl to PSEH 2.0

[Dmitry Gorbachev]

Hi!

I have a linking error because GCC-4.4 inserts calls of 
___enable_execute_stack() into functions which use PSEH. It seems that this 
behavior cannot be changed without changing the GCC itself. Or maybe I 
should provide an empty ___enable_execute_stack() function just to satisfy 
the linker.