It is dangerous for FEX to rely on the system CRT as calls can have side
effects that are also visible to the running application, and if patches
are applied to any CRT exports used during compilation the call checker
would trigger a reentry into the JIT to compile the patch and hence
deadlock. Only functions that FEX actively uses are implemented, with
the rest triggering an abort.
OutputDebugString etc are exception based and thus don't really work for
FEX's needs as often times logs can happen in places where exceptions
cannot be thrown.
Unmapping a section will unmap the whole size initially allocated,
irrespective of how their protections are changed afterwards. Make sure
to follow this logic for invalidation too.
When thread management was moved to the frontend, invalidation moved
from being a global operation to per-thread but the WOW64 backend wasn't
updated to account for this. Now for any invalidation event loop over
all threads tracked by the frontend and invalidate the appropriate
range.
FEXCore includes was including an FHU header which would result in
compilation failure for external projects trying to link to libFEXCore.
Moves it over to fix this, it was the only FHU usage in FEXCore/include
NFC
Ryan Houdek