[PATCH 2/2 v2] ntdll: Track copy-on-write memory state on i386 and x86_64 architectures.

[Piotr Caban]

Based on patch by Michael Müller.

Signed-off-by: Piotr Caban 
---
v2:
  - added credit for Michael

dlls/kernel32/tests/virtual.c | 12 +++-----
  dlls/ntdll/ntdll_misc.h       |  1 +
  dlls/ntdll/signal_arm.c       |  8 +++++
  dlls/ntdll/signal_arm64.c     |  8 +++++
  dlls/ntdll/signal_i386.c      | 51 +++++++++++++++++++++++++++++++
  dlls/ntdll/signal_powerpc.c   |  8 +++++
  dlls/ntdll/signal_x86_64.c    | 45 +++++++++++++++++++++++++++
  dlls/ntdll/thread.c           |  1 +
  dlls/ntdll/virtual.c          | 57 +++++++++++++++++++++++++++--------
  9 files changed, 170 insertions(+), 21 deletions(-)