Investigating a crash at startup

[Filip Navara]

Hi!

In ReactOS we are unprotecting the IAT (Import Address Table) before 
every modification and restoring the previous access rights after all 
the modifications are done using NtProtectVirtualMemory. I'll try to 
write a patch for Wine tommorow if no one will do it earlier, but I 
can't test it...

Regards,
Filip

Phil Krylov wrote:

>Hello,
>
>I have a program here (IBM Translation Manager v.6.0.4) which crashes
>wine at startup. The program loads a DLL, and Wine starts importing
>this DLL's imports from kernel32.dll. It crashes on the first import
>in dlls/ntdll/loader.c:453, which says:
>
>thunk_list->u1.Function = (PDWORD)find_named_export( imp_mod, exports, exp_size,
>                                                     pe_name->Name, pe_name->Hint );
>
>This causes an exception because thunk_list happens to be located in
>.rdata section of the DLL, which is readonly.
>
>Currently I have hacked this around by making all PE sections
>read-write in map_image() in dlls/ntdll/virtual.c, and the program
>works.
>
>If a Wine guru would like to investigate this problem, I can give any
>support (e.g., ssh access to my computer with the program).
>If not - I will be using this hacked version of Wine.
>
>  
>