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Ollydbg x64

Started by RedXVII, September 16, 2006, 01:19:49 AM

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RedXVII

Anyone know if theres a version of olly for x64, or how to get the 32-bit version working on windows xp professional x64? Im looking to debug a simple 32-bit application on my x64 OS with olly. Olly boots up and loads a process, but it stops in the middle of areas in user32 and ntdll with the following 'breakpoint code' (pretty much 100times/call _and_ i cant add it to the exception list for olly to ignore it, that doesnt work either :( );

"Single step event at ntdll.7D61E9EC" <-- change address as appropriate

Looking just before that, everytime this occurs, the processor either calls FS:[C0] or mov's something from FS:[0] and i suspect these randoms stops are due to the trap flag being set for some reason (tracing will run it fine without any of these stops you see, but seeing as tracing is incredably slow... :/ ). I presume this has something to do with the kernel, although i know incredably little about the the FS: thingy. Can anyone suggest why the trap flag is firing off and preventing me from debugging this, or perhaps how to fix olly in some way?

Thanks alot
RedXVII

Vortex

There is not a 64-bit version of OllyDbg yet :

http://www.ollydbg.de

P1

AFAIK, Your limited at the moment to M$ products like WinDBG64 or VS or paid debuggers like SoftICE.

Regards,  P1  :8)

nmt


I've used this nice x64 debugger written in Flat Assembler. It's Ollydbg like.

http://feryno.host.sk/

MazeGen

FDBG is still far from OllyDbg's comfort, but it is under development and hopefully it will be as useful as OllyDbg.