Re: [ros-kernel] NtProtectVirtualMemory() is needed to run MSVC++ apps

[Robert K. <ro...@ko...>]

Congratulations. Let's hope this is the only thing that has to be fixed 
in order to run
MSVC compilend pgms.   It's at least an impotand step.

Whose mistake is it ?     MSVC, Mingw, NT or ROS?

Eric Kohl schrieb:

>Hi!
>
>I just found out why application compiled with MSVC++ don't run on ReactOS.
>
>These apps have a slighly different layout compared to apps compiled with
>MinGW. MSVC++ stores the IAT (Import Address Table) inside of the .rdata
>section, MinGW stores the IAT inside of the .data section. Now the problem
>is that the .rdata setion is read-only. To fix-up the IAT of an application
>the offsets stored in the IAT must be overwritten by the real import
>addresses. Obviously this wont work if the IAT is inside of a read-only
>section.
>
>To fix this bug I added calls to NtProtectVirtualMemory() to the fixup
>routine to change the IAT's protection to read-write before it is modified
>and reset its protection after the fixup is done.
>
>When I had a look at NtProtectVirtualMemory() I saw that its core
>functionality is disabled. What's wrong?
>
>
>Regards,
>Eric
>
>Eric
>
>
>
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