kernel: add execution permission to DOS memory area

[Alexandre Julliard]

Mikolaj Zalewski <mikolaj at zalewski.pl> writes:

>  Execution permission is needed because we store some (mostly
> DPMI-related) code in UMB (in winedos/himem.c) that is executed for
> each Win16 app. The user may put even more code there. Ntvdm.exe also
> makes the DOS memory executable (except for some parts of the UMB)

winedos is supposed to make that memory executable when needed. The
executable protection was removed from kernel32 as it causes failures
on platforms that don't allow write+exec.

-- 
Alexandre Julliard
julliard at winehq.org