New subject: Re[2]: problem with virtualdub.

29 Oct 2001


      At 05:17 PM 26/10/2001 -0400, you wrote:
...
there seems to be a funky problem with virtualdub
(http://virutaldub.sourceforge.net).  Get differing
results between solaris and linux, but both seems to
fail before the app comes up.
Under solaris, it seems like something is screwed up
with the loader - when it tries to load the binary, 
it dies in dump_exports because what's at pe_exports
is just garbage.   Not sure where it's dying under
linux (probably the same place) - don't have a devel
environment there (yet).
Nothing unusual seems to happen before it gets there
(both solaris/linux binaries run sol.exe and other stuff just fine). 
My suspicion is that the IMAGE_DIRECTORY_ENTRY_EXPORT data isn't pointing
to what
...
wine thinks is there, but would like someone who knows more
about the loader to say something....
can anyone help shed more light onto this?
-r
Yes, I have looked at this application.
It loads fine under Windows - however, both dependancy walker and the
Nt quick viewer are not happy with it (one displays that there is a format
error in the exe, the other loops and finally crashes)
The web site says that this executable is compressed with a tool called UPX.
This
seems to be the reason for the problem, as the original program is compiled with
Ms VC++ - not a very exotic tool.
I think that a fix could be to detect a corrupted header in dump_exports and
to not try to display anything if numberoffunctions is not coherent with the
export
section size.
I tried a hack for that and virtualdub got further; however, I see that it is
trying to load avicap32.dll and this is not going to work - even under Linux
;:-)
Gerard

Re: problem with virtualdub.